JP6426246B2 - POWER SUPPLY UNIT FOR LIGHTING AND LIGHTING DEVICE - Google Patents

Description

  The present invention relates to a power supply unit for lighting and a lighting device.

  Among downlight type lighting devices used embedded in a ceiling, there is one using an LED as a light source (see, for example, Patent Document 1).

  Also in a light bulb type lighting device used by being attached to an appliance, there is one using an LED as a light source (see, for example, Patent Document 2).

JP 2012-74134 A JP, 2011-108590, A

  In the conventional downlight type lighting device, the heat sink member is formed integrally with the main body or as a part of the main body from aluminum alloy or the like. Therefore, when the specification of the heat sink member is changed in accordance with the application of the lighting device, the specification of the main body must also be changed, which makes it difficult to meet various needs.

  On the other hand, in the conventional bulb-type lighting device, the cooling fin portion is attached to the outer peripheral surface of the cylindrical main body. Therefore, it is possible to change only the specification of the cooling fin unit in accordance with the application of the lighting device without changing the specification of the cylindrical main body. However, in the conventional light bulb-type lighting device, the support member is crimped to the outer peripheral portion of one end of the cylindrical main body, and the LED module is fixed to the support member via the support. Therefore, in the process of transferring the heat generated in the LED from the support to the support member, the cylindrical main body, and the cooling fin portion, the amount of heat transfer is reduced due to the thermal resistance generated at the caulking stop between the cylindrical main body and the support member. There is a problem called.

  Further, in any of the conventional downlight type and bulb type lighting devices, the power supply substrate for lighting the LED is directly accommodated in the main body portion or the cylindrical main body. Therefore, it is necessary to secure an extra space in the main body portion or the cylindrical main body so that the power supply substrate can be installed and wired, and there is a problem that it is difficult to miniaturize the lighting device.

  An object of the present invention is to achieve both the electrical insulation between the light source unit and the casing and the improvement of the heat dissipation of the lighting device.

The power supply unit for illumination according to one aspect of the present invention is
A power supply unit for illumination which supplies lighting power to a light source unit having a light source substrate on which a light source circuit including a light emitting element is disposed,
A power supply board on which a lighting circuit is disposed;
The light source unit has a bottom wall from the outside with the cylindrical peripheral wall and the bottom wall closing one end of the peripheral wall, and the light source substrate is electrically insulated from the bottom wall. Connectable housing ,
And a container which is housed inside the housing and which houses the power supply substrate .
Gap there Ru between an outer peripheral surface of the housing body and the inner peripheral surface of the peripheral wall of the housing.

  In the present invention, while electrically insulating the light source substrate of the light source unit from the bottom wall of the housing, the light source unit is physically connected to the bottom wall of the housing so that the heat is directly transmitted from the light source unit to the housing It can be transmitted. Therefore, coexistence with the electrical insulation of a light source unit and a housing | casing and the improvement of the heat dissipation of an illuminating device is attained.

FIG. 1 is a perspective view of a lighting device according to Embodiment 1. 1 is an exploded perspective view of a lighting device according to Embodiment 1. FIG. 1 is an exploded perspective view of a lighting device according to Embodiment 1. FIG. FIG. 2 shows an example of installation of a lighting device according to Embodiment 1. FIG. 2 is a perspective view of a housing of a power supply unit of the lighting device according to Embodiment 1. FIG. 2 is a perspective view of a housing of a power supply unit of the lighting device according to Embodiment 1. FIGS. 2A and 2B are side views of a housing and a heat sink of a power supply unit of the lighting device according to Embodiment 1. FIGS. Sectional drawing of the housing | casing and heat sink of the power supply unit of the illuminating device which concern on Embodiment 1. FIG. FIG. 3 is a diagram showing a connection point between a housing and a heat sink of a power supply unit of the lighting device according to Embodiment 1. FIG. 6 is a perspective view of a housing, an output wire, and an input wire of the power supply unit of the lighting device according to the first embodiment. FIG. 2 is a perspective view of a housing of a power supply unit of the lighting device according to Embodiment 1. FIG. 2 is a perspective view of a housing of a power supply unit of the lighting device according to Embodiment 1. FIG. 2 is a perspective view of a housing of a power supply unit of the lighting device according to Embodiment 1. FIG. 6 is a view showing alignment of a housing and a housing of a power supply unit of the illumination device according to Embodiment 1, a plate member of the light source unit, an insulating sheet, and a light source substrate. FIG. 2 is a perspective view of a plate-like member of the power supply unit and the light source unit of the lighting device according to Embodiment 1. FIG. 6 is a perspective view of a reflector of the light source unit of the lighting device according to Embodiment 1. FIG. 2 is a perspective view of a power supply unit and a light source unit of the lighting device according to Embodiment 1. FIG. 6 is a view showing a procedure for attaching a frame to a light source unit of the illumination device according to Embodiment 1. FIG. 6 is a view showing a procedure for attaching a frame to a light source unit of the illumination device according to Embodiment 1. The perspective view of the cover body and terminal block of the power supply unit of the illuminating device which concern on Embodiment 2. FIG. FIG. 10 is a partial plan view of a power supply unit of a lighting device according to Embodiment 2. The perspective view of the cover body and terminal block of the power supply unit of the illuminating device which concern on Embodiment 3. FIG. FIG. 10 is a partial plan view of a power supply unit of a lighting device according to Embodiment 3. FIG. 14 is a side view of the lighting device according to Embodiment 4. FIG. 16 is a perspective view of a heat sink of a power supply unit of a lighting device according to a fourth embodiment. FIG. 16 is a perspective view of a heat sink of a power supply unit of a lighting device according to a fourth embodiment. The side view of the housing | casing and heat sink of the power supply unit of the illuminating device which concern on Embodiment 4. FIG. Sectional drawing of the housing | casing and heat sink of the power supply unit of the illuminating device which concern on Embodiment 4. FIG. The perspective view of the housing | casing and heat sink of the power supply unit of the illuminating device which concern on Embodiment 5. FIG. The perspective view of the housing | casing and heat sink of the power supply unit of the illuminating device which concern on Embodiment 6. FIG. The perspective view of the heat sink of the power supply unit of the illuminating device which concerns on Embodiment 6. FIG. The perspective view of the housing | casing and heat sink of the power supply unit of the illuminating device which concern on Embodiment 7. FIG. The perspective view of the fin of the heat sink of the power supply unit of the illuminating device which concerns on Embodiment 7. FIG. The perspective view of the illuminating device which concerns on Embodiment 8. FIG. FIG. 18 shows an example of installation of a lighting device according to an eighth embodiment. The perspective view of the illuminating device which concerns on Embodiment 9. FIG. The perspective view of the illuminating device which concerns on Embodiment 9. FIG. The perspective view of the cover body and terminal block of the power supply unit of the illuminating device which concerns on Embodiment 10. FIG. The top view of the power supply unit of the illuminating device which concerns on Embodiment 10. FIG. FIG. 32 is a partial perspective view of the housing and the output wire and the input wire of the power supply unit of the lighting apparatus according to Embodiment 11. FIG. 45 is a partial perspective view of the housing and the output wire and the input wire of the power supply unit of the lighting device according to a modification of the eleventh embodiment. FIG. 45 is a partial perspective view of the housing and the output wire and the input wire of the power supply unit of the lighting device according to a modification of the eleventh embodiment. A partial perspective view of a holder of a power supply unit of an illuminating device concerning Embodiment 12, an output wire, and an input wire. FIG. 31 is a partial exploded perspective view of a housing of a power supply unit of a lighting device according to a twelfth embodiment. The perspective view of the bridge part of the storage body of the power supply unit of the illuminating device which concerns on the modification of Embodiment 12. FIG. FIG. 34 is a partial perspective view of the housing and the output wire and the input wire of the power supply unit of the lighting device according to Embodiment 13. FIG. 31 is a partial exploded perspective view of a housing of a power supply unit of a lighting device according to a thirteenth embodiment. FIG. 44 is a partial perspective view of the housing and the output wire and the input wire of the power supply unit of the lighting apparatus according to the fourteenth embodiment. FIG. 46 is a partial exploded perspective view of a housing of a power supply unit of a lighting device according to a fourteenth embodiment. FIG. 51 is a perspective view of a housing, an output wire, and an input wire of a power supply unit of a lighting device according to a fifteenth embodiment. The perspective view of the container of the power supply unit of the illuminating device which concerns on Embodiment 15. FIG. The perspective view of the container of the power supply unit of the illuminating device which concerns on Embodiment 15. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals. In the description of the embodiment, the description of the same or corresponding parts will be appropriately omitted or simplified. In the description of the embodiment, the arrangement, orientation, etc. of “upper”, “lower”, “left”, “right”, “front”, “back”, “front”, “back”, etc. are for convenience of description. However, it is only described as such, and does not limit the arrangement, orientation, etc. of devices, instruments, parts and the like. The material, shape, size and the like of the configuration of the device, instrument, parts and the like can be appropriately changed within the scope of the present invention.

Embodiment 1
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order.

*** Description of the configuration ***
The configuration of a lighting apparatus 100 which is an apparatus according to the present embodiment will be described with reference to FIGS. 1, 2 and 3.

  The lighting apparatus 100 includes a light source unit 200 and a power supply unit 300 for illumination that supplies lighting power to the light source unit 200.

  The light source unit 200 includes a light source substrate 210, a plate member 220, an insulating sheet 230, a reflection plate 240, and a diffusion plate 250.

  A light emitting element 211 which is an LED is mounted on the light source substrate 210. That is, on the light source substrate 210, a light source circuit including the light emitting element 211 is disposed. The number of light emitting elements 211 may be any number, but is 26 in this embodiment. The light emitting element 211 may be a solid light emitting element other than an LED such as an organic EL or a laser. In addition, the light emitting element 211 may not be mounted on the light source substrate 210, and it is sufficient that the light source circuit including the light emitting element 211 is disposed in the light source unit 200.

  The plate-like member 220 has two plate surfaces 221 and 222 which are respectively a front surface and a back surface. The light source substrate 210 is fixed to one plate surface 221. That is, on one plate surface 221, a light source circuit including the light emitting element 211 is disposed. The other plate surface 222 is connected to the power supply unit 300.

  In the present embodiment, the insulating sheet 230, the light source substrate 210, the reflection plate 240, and the diffusion plate 250 are sequentially stacked and attached to one plate surface 221 of the plate member 220. Screw holes are provided in the plate-like member 220, the insulating sheet 230, the reflection plate 240, and the diffusion plate 250 at a plurality of corresponding positions. Screws are inserted through screw holes of the diffusion plate 250, the reflection plate 240, and the insulation sheet 230 in order and inserted into screw holes of the plate member 220 and tightened, whereby the insulation sheet 230, the reflection plate 240, the diffusion plate A plate 250 is fixed to the plate member 220. The light source substrate 210 is fixed by being sandwiched between the insulating sheet 230 and the reflecting plate 240. The light source substrate 210 may also be provided with screw holes. In that case, the screw passes through the screw holes of the diffusion plate 250, the reflection plate 240, the light source substrate 210, and the insulating sheet 230 in order and is inserted into the screw holes of the plate member 220.

  The plate member 220 is formed of a heat conductive material. In the present embodiment, the plate-like member 220 is integrally formed of a metal material.

  The insulating sheet 230 is sandwiched between the plate-like member 220 and the light source substrate 210, and electrically insulates the light source substrate 210 from the plate-like member 220.

  The reflection plate 240 is provided with a circular opening 241 for exposing the light emitting element 211. The reflection plate 240 reflects the light from the light emitting element 211 on the inner circumferential surface of the opening 241.

  The diffusion plate 250 is formed of a translucent material. The diffusion plate 250 diffuses and transmits the light directly emitted from the light emitting element 211 and the light reflected by the reflection plate 240.

  The power supply unit 300 includes a power supply substrate 310, an output wire 320, a housing 330, a lid 340, a terminal block 350, an input wire 360, a housing 370, and a cylindrical heat sink 390.

  A lighting circuit 311 is disposed on the power supply substrate 310.

  The output wire 320 serves as an output path of lighting power from the lighting circuit 311 to the light source circuit including the light emitting element 211 by electrically connecting the power supply substrate 310 and the light source substrate 210. That is, by electrically connecting the lighting circuit 311 disposed on the power supply substrate 310 and the light source circuit disposed on the light source substrate 210, the output wire 320 serves as an output path of lighting power from the lighting circuit 311 to the light source circuit. .

  The housing 330 has a cylindrical peripheral wall portion 331 and a bottom wall portion 332. Bottom wall portion 332 is integrally molded with peripheral wall portion 331. The bottom wall portion 332 closes one end of the peripheral wall portion 331. A housing space in which the power supply substrate 310 is housed is formed inside the housing 330. The housing 330 is configured such that the light source unit 200 can be attached to the bottom wall portion 332 from the outside. The bottom wall portion 332 is provided with a through hole 333 through which the output wire 320 is inserted from the inside of the housing 330 to the outside of the housing 330. In the present embodiment, the light source unit 200 is connected to the bottom wall portion 332 from the outside of the housing 330. Specifically, the other plate surface 222 of the plate member 220 is connected to the bottom wall portion 332.

  Since the housing 330 is configured as described above, heat generated from the light source unit 200 during lighting of the light emitting element 211 is connected to the bottom wall portion 332 and the light source unit 200 via the bottom wall portion 332. The heat is conducted to the peripheral wall portion 331 and dissipated. In the present embodiment, since the peripheral wall portion 331 and the bottom wall portion 332 are integrally formed, thermal resistance is unlikely to occur between the peripheral wall portion 331 and the bottom wall portion 332. Therefore, the heat generated in the LED can be efficiently transmitted from the light source unit 200 to the bottom wall portion 332 and the peripheral wall portion 331.

  The lid 340 closes the other end of the peripheral wall portion 331. The lid 340 is formed of a thermally conductive material. In the present embodiment, the lid 340 is integrally formed of a metal material.

  The terminal block 350 is connected to an external power supply such as a commercial power supply (not shown). The terminal block 350 is fixed to the lid 340 from the outside of the housing 330.

  The input wire 360 electrically connects the power supply substrate 310 and the terminal block 350 to become an input path of lighting power from the external power supply to the lighting circuit 311.

  The housing 330 has a flange portion 334 in addition to the peripheral wall portion 331 and the bottom wall portion 332 described above. The flange portion 334 is integrally formed with the peripheral wall portion 331 in the same manner as the bottom wall portion 332. The flange portion 334 protrudes perpendicularly to the central axis direction of the peripheral wall portion 331 from the other end of the peripheral wall portion 331. That is, the flange portion 334 protrudes from the other end of the peripheral wall portion 331 in the radial direction of the peripheral wall portion 331. The peripheral wall portion 331 is provided with a notch 335 for passing the input wire 360 from the outside of the housing 330 to the inside of the housing 330. The lid 340 is connected to the flange portion 334. A through hole may be provided in the peripheral wall 331 instead of the notch 335 in order to pass the input wire 360. The position and the number of the flanges 334 may be any position and the number, but in the present embodiment, the flanges 334 are provided at two opposite positions along the radial direction of the peripheral wall 331. Therefore, the number of flanges 334 is two.

  Since the housing 330 is configured as described above, heat generated from the light source unit 200 during lighting of the light emitting element 211 is connected to the bottom wall portion 332 and the light source unit 200 from the bottom wall portion 332 and the peripheral wall portion Conduction is conducted to the connection point between the flange portion 334 and the lid 340 via the portion 331 and the flange portion 334 to dissipate heat. In the present embodiment, since the peripheral wall portion 331 and the flange portion 334 are integrally formed, thermal resistance is unlikely to occur between the peripheral wall portion 331 and the flange portion 334. Therefore, the heat generated in the LED can be efficiently transmitted from the light source unit 200 to the bottom wall portion 332, the peripheral wall portion 331, the flange portion 334, and the lid 340.

  The housing 330 is formed of a thermally conductive material. In the present embodiment, the housing 330 is integrally formed of a metal material. Specifically, the housing 330 is formed into a cup shape by drawing a single metal plate. The housing 330 may be manufactured by a method other than drawing, such as die casting.

  As a modification of the present embodiment, vent holes may be provided in each of the bottom wall portion 332 and the peripheral wall portion 331 or the lid 340. In that case, a ventilation path connecting from one of the vents to the other is formed inside the housing 330. Thereby, convection occurs and the heat dissipation of the housing 330 is improved. The through hole 333 provided in the bottom wall portion 332 may double as the vent. In addition, the notch 335 provided in the peripheral wall portion 331 may double as the vent.

  The housing 370 is housed inside the housing 330. The housing 370 accommodates the power supply substrate 310. As described above, in the present embodiment, the power supply substrate 310 is not accommodated directly in the accommodation space formed inside the housing 330, but is accommodated via the housing 370. Therefore, it is sufficient if there is a space for installing the container 370 in the housing 330, and it is not necessary to secure an extra space.

  The housing 370 is formed of an insulating material. In the present embodiment, the container 370 is integrally formed of a resin material.

  The heat sink 390 is fixed to the peripheral wall portion 331 from the outside of the housing 330. Therefore, in the present embodiment, it is possible to change only the specification of the heat sink 390 in accordance with the application of the lighting apparatus 100 without changing the specification of the housing 330.

  The heat sink 390 may be fixed to the peripheral wall 331 by press-fitting the peripheral wall 331, but is fixed to the peripheral wall 331 by being connected to the peripheral wall 331 in the present embodiment. Specifically, the heat sink 390 is crimped to the peripheral wall portion 331. Therefore, the housing 330 generates heat generated from the light source unit 200 during lighting of the light emitting element 211 from the connection portion between the bottom wall portion 332 and the light source unit 200 via the bottom wall portion 332 and the peripheral wall portion 331. The heat is conducted to the connection point between the heat sink and the heat sink 390 and is dissipated. In the present embodiment, the heat generated in the LED can be efficiently transmitted from the light source unit 200 to the bottom wall portion 332, the peripheral wall portion 331, and the heat sink 390 by increasing the number of connection points between the peripheral wall portion 331 and the heat sink 390. it can.

  In the present embodiment, the lighting device 100 is a downlight type lighting device that is used by being embedded in a ceiling. Therefore, the lighting device 100 further includes an annular frame 400 and a plurality of leaf springs 500.

  An installation example of the lighting device 100 will be described with reference to FIG. In FIG. 4, the cross section of the ceiling material 600 and the side surface of the illuminating device 100 inserted in the embedded hole 601 provided in the ceiling material 600 are shown.

  The outer diameter R1 of the frame 400 is larger than the outer diameter R2 of the embedded hole 601.

  A plurality of leaf springs 500 are attached to the frame 400 along the circumferential direction of the frame 400 in order to fix the frame 400 around the embedded hole 601 of the ceiling. The number of leaf springs 500 is three in the present embodiment as shown in FIGS. 2 and 3, but may be two or four or more.

  In the present embodiment, the light source unit 200 and the portion other than the lid 340 of the power supply unit 300 are disposed within the range not larger than the opening diameter of the embedded hole 601 and the axis is aligned with the opening center. The lighting device 100 can be inserted into the embedded hole 601 without being greatly inclined.

  As a modification of the present embodiment, the same light source unit as that of the present embodiment can be applied to a lighting device of a type different from the downlight type, such as a spotlight type, a flange light type, a ceiling light type, a bracket light type, and a pendant light type. 200 and a power supply unit 300 may be provided.

  Hereinafter, details of the housing 330, the heat sink 390, and the housing 370 of the power supply unit 300 will be described in order.

  Details of the housing 330 will be described with reference to FIGS. 5 and 6.

  The housing 330 has a configuration in which the light emitting element 211 can be disposed, and serves as a heat radiation path for transferring the operation heat of the light emitting element 211 to the external space, and also houses the power supply substrate 310 to function as a burning prevention wall. Compared with the structure which accommodated the power supply board in the housing | casing provided out of the thermal radiation path | route, significant size reduction and weight reduction can be achieved. Miniaturization and weight reduction contribute to simplification of packaging, improvement of distribution efficiency, and workability, that is, improvement of construction efficiency. The weight reduction reduces the risk of falling and contributes to the alleviation of the strength of the ceiling member 600, leading to cost reduction. As a modification of the present embodiment, in the case where the lighting device installed on the wall is provided with the same light source unit 200 and power supply unit 300 as the present embodiment, the weight reduction contributes to the alleviation of the strength of the wall material.

  In addition, the cover 340 mentioned above also closes the housing | casing 330 and functions as a burning prevention wall and a thermal radiation path.

  The housing 330 is formed using a plate-like noncombustible material. The housing 330 is formed in a bottomed cylindrical shape by press molding using a plate-like metal material. The housing 330 is an integral unit of the bottom wall portion 332 and the peripheral wall portion 331 and has a uniform thermal resistance, that is, no thermal resistance discontinuity, and is excellent in thermal conductivity. That is, the housing 330 is a thermally integrated structure.

  At the open end of the housing 330, a flange portion 334 protruding outward is integrally formed. The flange portion 334 is used as a mounting piece for screwing the lid 340. The housing 330 is integrally formed with the flange portion 334 and the peripheral wall portion 331, and has uniform heat resistance, that is, there is no discontinuity of heat resistance, and is excellent in heat conductivity. That is, the housing 330 is a thermally integrated structure.

  Since the housing 330 is integrally formed with the peripheral wall portion 331, the bottom wall portion 332, and the flange portion 334, the number of parts is small, and the housing 330 has excellent assemblability and robustness.

  In the present embodiment, the outer diameter of the continuous portion 336 which is a connecting portion of the peripheral wall portion 331 and the bottom wall portion 332 gradually increases from the bottom wall portion 332 toward the peripheral wall portion 331. That is, in the vertical cross section of the housing 330, the outer peripheral surface of the peripheral wall portion 331 and the outer surface of the bottom wall portion 332 do not connect at a right angle, but connect while curving. Therefore, the air flowing near the outer surface of the bottom wall portion 332 can easily flow to the outer peripheral surface of the peripheral wall portion 331 along the outer surface of the continuous portion 336, and the heat dissipation of the housing 330 is improved.

  Further, in the present embodiment, the inner diameter of the continuous portion 336 also gradually increases from the bottom wall portion 332 toward the peripheral wall portion 331. That is, in the vertical cross section of the housing 330, the inner peripheral surface of the peripheral wall portion 331 and the inner surface of the bottom wall portion 332 do not connect at a right angle, but connect while curving. Therefore, a gap is formed between the housing 370 and the peripheral wall portion 331 or between the housing 370 and the bottom wall 332 unless the bottom of the housing 370 has a shape similar to that of the housing 330. Be done. Thereby, the heat transfer from the housing 330 to the housing 370 can be suppressed.

  As described above, the lid 340 and the bottom wall 332 may be provided with through holes for ventilation. In that case, air can be made to flow into the gap between the housing 330 and the housing 370 to suppress the temperature rise of the light emitting element 211 and the power supply substrate 310.

  The notch 335 through which the input wire 360 passes can be replaced with the through hole of the lid 340 and double as a vent.

  Details of the heat sink 390 will be described with reference to FIGS. 7, 8, and 9. In FIGS. 7 and 8, the flow of air is indicated by arrows.

  In accordance with the operation heat generated from the light emitting element 211, the heat sink 390 can be selectively mounted on the outer peripheral portion of the housing 330.

  The heat sink 390 is made of a thermally conductive material. The heat sink 390 is a metal plate which extends one round while alternately forming convex ridges 391 in a direction away from the central axis of the heat sink 390 and convex valleys 392 in a direction approaching the central axis of the heat sink 390 by bending in a wave shape. It is formed by That is, the heat sink 390 is processed into a tubular shape by bending a bendable annular plate material into a wave shape. That is, the heat sink 390 is formed of a metal plate which is bent in a wave shape and the peaks 391 and the valleys 392 are alternately formed, and the peaks 391 are outside (outside) and the valleys 392 are inside (inside) Make one turn for each. The number of peak portions 391 may be any number, but is 18 in the present embodiment.

  The heat sink 390 is fixed to the peripheral wall portion 331 from the outside of the housing 330. Specifically, the valley portion 392 of the heat sink 390 is attached to the outside of the peripheral wall portion 331. A ventilation path is formed between the peripheral wall portion 331 and the peak portion 391 with the both ends of the peak portion 391 as the entrance and exit. That is, between the peripheral wall portion 331 and the heat sink 390, a ventilation path is formed in which both ends in the cylinder axial direction of the heat sink 390 are opened. Therefore, the heat dissipation of the housing 330 and the heat sink 390 is improved.

  In the present embodiment, the inner flange of the heat sink 390 is firmly attached to the peripheral wall 331 by caulking. This improves the heat transfer effect and the strength. The position and number of caulking may be any position and number, but in the present embodiment, three valleys 392 are selected at equal intervals along the circumferential direction of the heat sink 390, and the three valleys 392 are selected. Four caulks are provided equidistantly along the central axis direction of the heat sink 390 one by one. Thus, the total number of crimps connecting the heat sink 390 to the peripheral wall portion 331 is twelve.

  The heat sink 390 may be attached to the housing 330 by press-fitting the housing 330 along the inner ridge of the heat sink 390. In that case, the heat sink 390 needs to have a spring property.

  In the cross section including the tube axis of the housing 330, the diameter of the heat sink 390 near the lid 340 is reduced. That is, the heat sink 390 is narrowed.

  In the cross section including the tube axis of the housing 330, the heat sink 390 is expanded in diameter near the bottom wall portion 332.

  In the present embodiment, both ends of the peak portion 391 are notched at an angle, so that the length of the peak portion 391 becomes gradually shorter as it goes away from the central axis of the heat sink 390. That is, in the cross section including the tube axis of the housing 330, the heat sink 390 has an upper end that is an end closer to the lid 340 and a lower end that is an end closer to the bottom wall 332 in an R shape. It is cut out. The notch at the upper end improves the attachment to the ceiling member 600, and the notch at the lower end improves the air intake. Therefore, at least one of the effects can be obtained as long as at least one of both ends of the peak portion 391 is notched obliquely.

  It is desirable that the size at which at least one of the ends of the peak portion 391 is notched is larger at the position overlapping the leaf spring 500 in the circumferential direction of the frame 400 than at the other position. That is, the inlet of the ventilation path formed at either end of the peak portion 391 at a position overlapping the leaf spring 500 is formed at either end of the peak portion 391 at another position, since air is difficult to enter. It is desirable to be more open than the inlet of the

  In the present embodiment, an opening 393 is provided near the center in the longitudinal direction of the peak portion 391. With the air flowing in and out from the opening 393, the heat dissipation of the housing 330 and the heat sink 390 is further improved.

  The heat sink 390 may be partially cut away in consideration of the structure necessary for assembly as the lighting device 100 and the structure necessary for mounting the lighting device 100 on a ceiling.

  The heat sink 390 may have a radially standing shape, a pin shape, a corrugated shape, or the like in addition to the illustrated shape, and may be manufactured by a molding method other than bending, such as extrusion or throttling. According to the shape of the heat sink 390, the shape of the peripheral wall portion 331 can also be changed as appropriate. That is, the peripheral wall portion 331 is not limited to the cylindrical shape as long as it is cylindrical, and may have another shape.

  Details of the container 370 will be described with reference to FIGS. 10 and 11 and FIGS. 12 and 13 and 14. In FIG. 10, the example of wiring of the output wire 320 and the input wire 360 is shown. FIG. 14 shows a mechanism for aligning the housing 370, the housing 330, the plate member 220, the insulating sheet 230, and the light source substrate 210.

  The housing 370 is formed in a bottomed cylindrical shape.

  The housing body 370 has a first housing portion 371 and a second housing portion 372. The first accommodation portion 371 accommodates the power supply substrate 310. The second housing portion 372 is separated from the first housing portion 371 by the partition wall 373.

  The output wire 320 passes from the first accommodation portion 371 over the partition wall 373 and enters the second accommodation portion 372, and the through hole 374 and the bottom wall portion 332 provided in the bottom wall of the second accommodation portion 372 from the second accommodation portion 372. And the outside of the housing 370 and the housing 330 through the through holes 333 provided in the

  As described above, in the present embodiment, the space for housing power supply substrate 310 and the space for housing output wire 320 are secured separately, so the work of installation and wiring of power supply substrate 310 is efficient. It can do.

  The housing 370 further includes a hollow column 375. The pillar portion 375 protrudes from a position where the through hole of the bottom wall of the second accommodation portion 372 is provided, and fits into the through hole 333 provided in the bottom wall portion 332.

  The output wire 320 passes from a through hole 374 provided in the bottom wall of the second housing portion 372 to the outside of the housing 370 and the housing 330 through the column portion 375.

  A recess 376 through which the output wire 320 passes is provided at one end of the partition 373.

  The housing 370 further has a hollow boss 377. The boss 377 is integrally formed with the bottom wall of the second housing 372. The bottom wall of the second housing portion 372 is provided with a screw hole 378 that leads into the boss. The housing 370 is screwed to the bottom wall portion 332 via a screw hole 378 provided in the bottom wall of the second housing portion 372.

  The housing 370 further includes a bridge 379. The bridge portion 379 protrudes from one end of the peripheral wall of the first accommodation portion 371, and fits in a notch 335 provided in the peripheral wall portion 331. When a through hole is provided in the peripheral wall portion 331 instead of the notch 335, the bridge portion 379 fits in the through hole.

  The input wire 360 enters the first accommodating portion 371 from the outside of the accommodating body 370 and the housing 330 through the groove 380 provided in the bridge portion 379. That is, the input wire 360 enters the inside of the housing 330 from the outside of the housing 330 through the notch 335 provided in the peripheral wall portion 331. A hole may be provided in the bridge portion 379 instead of the groove 380 in order to pass the input wire 360.

  In the present embodiment, the outer peripheral surface 381 of the housing 370 extends obliquely with respect to the central axis direction of the peripheral wall portion 331, whereby a gap is formed between the housing 370 and the peripheral wall portion 331. Thereby, the heat transfer from the housing 330 to the housing 370 can be suppressed.

  The angle between the outer peripheral surface 381 of the housing 370 and the central axis of the peripheral wall portion 331 is preferably 0.1 degrees or more.

  Note that the inner peripheral surface of the peripheral wall portion 331 is oriented with respect to the central axis direction of the peripheral wall portion 331 regardless of whether the outer peripheral surface 381 of the housing 370 extends obliquely with respect to the central axis direction of the peripheral wall portion 331. A gap may be formed between the housing 370 and the peripheral wall portion 331 by adopting a configuration that extends obliquely.

  Although not shown, in the present embodiment, the light source unit 200 is connected to the bottom wall 332 from the outside of the housing 330 by caulking or screws. Then, the bottom surface of the housing 370 is pushed up by the portion of the housing 330 that protrudes to the inside of the housing 330 by caulking or screwing, so that a gap is also formed between the housing 370 and the bottom wall portion 332. Thereby, the heat transfer from the housing 330 to the housing 370 can be suppressed.

  In the first housing portion 371, a partition wall 382 for partitioning the internal space along the tube axis direction of the housing body 370 is provided. Like the partition wall 373, the partition wall 382 is connected to the bottom wall and the peripheral wall of the first housing portion 371.

  A first storage chamber 383 is formed between the partition wall 373 and the partition wall 382, and the power supply substrate 310 is stored.

  The first storage chamber 383 is filled with a necessary amount of a curable filling material made of a resin material, and the power supply substrate 310 is fixed in the first storage chamber 383 and the operation heat of the power supply substrate 310 to the outside of the container 370 It becomes a heat radiation route to be dissipated. The filling material is filled so as not to cover the aluminum electrolytic capacitor which is a component of the lighting circuit 311 disposed on the power supply substrate 310.

  The bottom wall of the first storage chamber 383 is formed with a raised portion 384 protruding toward the opening. The raised portion 384, together with the partition wall 373 and the partition wall 382 forming the first storage chamber 383, has an effect of reducing the amount of filler material used.

  Since the openings are not formed in the partition wall 373 and the partition wall 382 forming the first storage chamber 383, there is no possibility that the filling material leaks from the first storage chamber 383. That is, there is no risk of the filling material leaking out of the container 370.

  A substrate insertion guide 385 is formed on the peripheral wall of the first storage chamber 383 along the tube axis direction of the storage body 370.

  A second accommodation portion 372 is formed on the opposite side of the partition 373 to the first accommodation chamber 383.

  A pair of output wires 320 is disposed in the second housing portion 372.

  The bottom wall of the second accommodation portion 372 is formed with two openings.

  One opening is a screw hole 378 for screwing the container 370 into the housing 330. The screw hole 378 is connected to the boss 377 erected from the bottom wall of the second accommodation portion 372 along the axial direction of the accommodation body 370, and the outside of the accommodation body 370 and the second accommodation portion 372 Communication.

  The other opening is a through hole 374 through which the output wire 320 for supplying the lighting power from the power supply substrate 310 to the light emitting element 211 is inserted. The through hole 374 is connected from the bottom wall of the second accommodation portion 372 to the pillar portion 375 erected outside the accommodation body 370 along the axial direction of the accommodation body 370. The column portion 375 also has a function as a positioning structure for mutually aligning the positions of the housing 370, the housing 330, the plate member 220, the insulating sheet 230, and the light source substrate 210 in the tube axis direction of the housing 370.

  A recessed portion 386 for guiding the output wire 320 drawn out of the through hole 374 to the connector 212 of the light source substrate 210 is formed at the tip of the column portion 375 erected outside the container 370.

  At the end of the partition wall 373 at the boundary between the first storage chamber 383 and the second storage portion 372, a concave portion 376 for passing the output wire 320 from the power supply substrate 310 to the second storage portion 372 is formed.

  A second storage chamber 387 is formed on the side opposite to the first storage chamber 383 of the partition wall 382. That is, the second storage chamber 387 is formed on the opposite side of the second storage portion 372 with the first storage chamber 383 interposed therebetween. Although not shown, in the second storage chamber 387, a control board or the like on which a control circuit for controlling the output of the lighting power is disposed is stored as appropriate.

  As with the partition wall 382, openings are not formed in the peripheral wall and the bottom wall of the second storage chamber 387. Accordingly, as in the first storage chamber 383, the second storage chamber 387 may be filled with a necessary amount of a curable filling material made of a resin material.

  A substrate insertion guide 388 is formed on the peripheral wall of the second storage chamber 387 along the tube axis direction of the storage body 370 in the same manner as the peripheral wall of the first storage chamber 383.

  On the peripheral wall of the second storage chamber 387, a bridge portion 379 having a concave cross section is formed toward the outside. The bridge portion 379 passes the pair of input wires 360 from the outside of the housing 370 to the second storage chamber 387. The input wire 360 straddles the peripheral wall portion 331 of the casing 330 made of a metal material, but the bridge portion 379 causes the input wire 360 to touch the sharp edge of the casing 330 to cause disconnection or a ground fault. Can be prevented.

  The opening end of the peripheral wall portion 331 of the housing 330 is formed with a notch 335 which is a concave portion to which the bridge portion 379 can be fitted. The bridge portion 379 has a function as a positioning structure for mutually aligning the positions of the housing 330 and the housing 370 in the axial direction of the housing 370 by fitting with the cutouts 335 of the housing 330. .

  At the end of the partition wall 382 at the boundary between the first storage chamber 383 and the second storage chamber 387, from the bridge portion 379 and the control board etc. to the first storage chamber 383 the input wire 360 and control signal lines etc. not shown A recess 389 is formed to allow passage of

  As described above, a gap is provided between the housing 330 and the housing 370. There are effects such as heat insulation, air convection, and in particular, absorbing the thermal contraction of the container 370. In the present embodiment, the clearance is formed by the drafting taper required at the time of molding of the container 370, but the clearance may be provided by other methods.

  Hereinafter, the details of the plate-like member 220 and the reflecting plate 240 of the light source unit 200 will be sequentially described.

  Details of the plate member 220 will be described with reference to FIG. In FIG. 15, the state which attached only the plate-shaped member 220 to the power supply unit 300 is shown.

  A plate-like member 220 is appropriately attached to the outside of the bottom wall portion 332 of the housing 330 according to the specifications of the lighting device 100. When considering the thermal conductivity, the plate-like member 220 is firmly attached to the bottom wall portion 332 using a method such as screwing or caulking. For the screwing and caulking positions, (1) select a position not overlapping with the light emitting element 211 when priority is given to heat conduction from the light source substrate 210 to the plate member 220, and (2) from the plate member 220 to the bottom wall When priority is given to heat conduction to the portion 332, a position overlapping with the light emitting element 211 is selected.

  That is, (1) when priority is given to heat conduction from the light source substrate 210 to the plate-like member 220, the connection portion between the bottom wall portion 332 and the plate-like member 220 corresponds to the light emitting element 211 in the central axis direction of the peripheral wall portion 331. (2) When priority is given to heat conduction from the light source unit 200 to the bottom wall 332, the connection point between the bottom wall 332 and the light source unit 200 is the central axis of the peripheral wall 331. It is desirable that the light emitting element 211 and the light emitting element 211 overlap with each other in the direction.

  Details of the reflector 240 will be described with reference to FIGS. 16 and 17 and FIGS. 18 and 19. In FIG. 17, the light source unit 200 is attached to the power supply unit 300. That is, FIG. 17 shows a state in which the insulating sheet 230, the light source substrate 210, the reflection plate 240, and the diffusion plate 250 are further attached after the plate member 220 is attached to the power supply unit 300. FIGS. 18 and 19 show the attachment procedure of the frame 400 to the reflection plate 240 by hooks 244 and latches 245 described later, respectively.

  The reflection plate 240 is screwed and attached to the plate member 220. A light source substrate 210 on which the light emitting element 211 is mounted and an insulating sheet 230 for maintaining the insulation of the light source substrate 210 are sandwiched between the plate member 220 and the reflecting plate 240.

  The reflecting plate 240 has an annular plate shape, and the front side is finished in a shape and color tone that easily reflects light, and on the rear side, ribs 242 for maintaining strength are radially formed. The rib 242 located in the wiring path of the output wire 320 which is extended to the connector 212 of the light source substrate 210 through the recess 386 of the column 375 of the housing 370 is notched in a concave shape. Further, on the back side of the reflection plate 240, an inner peripheral wall 243 rising from the peripheral edge of the circular opening 241 is formed. Thereby, the output wire 320 drawn out from the column portion 375 and connected to the connector 212 can be wired on the back side of the reflection plate 240 so as not to prevent the light emission from the light emitting element 211. The number of ribs 242 may be any number, but in the present embodiment, it is eleven, of which six ribs 242 are cut out.

  An attachment mechanism for attaching the frame 400 is formed on the outer peripheral portion of the reflection plate 240. The attachment mechanism consists of a set of hooks 244 and latches 245. The attachment mechanism maintains a stress free state with the frame 400 attached.

*** Description of the effect ***
In the present embodiment, the peripheral wall portion 331 and the bottom wall portion 332 of the housing 330 of the power supply unit 300 are integrally formed. Therefore, by applying the power supply unit 300 to the lighting device 100, the heat dissipation of the lighting device 100 is improved.

  In the present embodiment, the heat sink 390 of the power supply unit 300 is separate from the housing 330. Therefore, it is possible to change only the specification of the heat sink 390 according to the application of the lighting apparatus 100 without changing the specification of the housing 330, and can meet various needs.

  In the present embodiment, a space in which the power supply substrate 310 is accommodated and a space in which the output wire 320 is accommodated are separately secured in the accommodating body 370 accommodated inside the housing 330 of the power supply unit 300. Therefore, by applying the power supply unit 300 to the lighting device 100, the lighting device 100 can be miniaturized.

  In the present embodiment, a ventilation path is formed between the peripheral wall portion 331 of the housing 330 of the power supply unit 300 and the peak portion 391 of the heat sink 390 with the both ends of the peak portion 391 as the entrance and exit. Thus, the heat dissipation of the housing 330 and the heat sink 390 is improved.

Second Embodiment
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order. The difference from Embodiment 1 will be mainly described.

*** Description of the configuration ***
In the present embodiment, the configuration of the cover 340 of the power supply unit 300 is different from the configuration of the cover 340 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the lid 340 will be described with reference to FIGS. 20 and 21.

  In the present embodiment, the lid 340 has a disc portion 341 and a fixing portion 342. While the bottom wall portion 332 of the housing 330 closes one end of the peripheral wall portion 331 of the housing 330, the disc portion 341 closes the other end of the peripheral wall portion 331. The fixing portion 342 is integrally formed with the disc portion 341. The terminal block 350 is fixed to the fixing portion 342. Notches 344 are provided on both sides of the continuous portion 343 which is a portion connecting the disc portion 341 and the fixing portion 342. That is, in the present embodiment, both sides of the continuous portion 343 are cut out.

  The lid 340 further includes a flange portion 345. The flange portion 345 is integrally molded with the disc portion 341 in the same manner as the fixing portion 342. The flange portion 345 protrudes perpendicularly to the central axis direction of the disc portion 341 from the outer peripheral portion of the disc portion 341. That is, the flange portion 345 protrudes from the outer peripheral portion of the disc portion 341 in the radial direction of the disc portion 341. The flange portion 345 is connected to the flange portion 334 of the housing 330.

*** Description of the effect ***
A venting path is formed between the peripheral wall portion 331 of the housing 330 and the peak portion 391 of the heat sink 390, with the both ends of the peak portion 391 as the entrance and exit. Air is less likely to escape. In the present embodiment, the portion closing the peripheral wall portion 331 of the lid 340 is the disc portion 341, and both sides of the portion connecting the disc portion 341 and the fixing portion 342 are cut away. As shown in FIG. 6, the lid 340 is present near the outlet with only a small number of ventilation paths as compared to the first embodiment. Thus, the heat dissipation of the housing 330 and the heat sink 390 is improved. Further, in the present embodiment, in addition to the air flow acceleration, there is also an effect of reducing the weight of the lighting device 100.

Third Embodiment
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order. The difference from Embodiment 1 will be mainly described.

*** Description of the configuration ***
In the present embodiment, the configuration of the cover 340 of the power supply unit 300 is different from the configuration of the cover 340 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the lid 340 will be described with reference to FIGS. 22 and 23.

  In the present embodiment, the lid 340 is provided with a vent 346. The bottom wall portion 332 of the housing 330 closes one end of the peripheral wall portion 331 of the housing 330, while a part of the lid 340 closes the other end of the peripheral wall portion 331. Five vent holes 346 are provided so as to line up in a circular arc at a portion where the portion closing the other end of the peripheral wall portion 331 and the portion to which the terminal block 350 is fixed are connected. Each air vent 346 is disposed at a position corresponding to the peak portion 391 of the heat sink 390. The positions and the number of the vents 346 can be appropriately changed according to the positions and the number of the ridges 391 of the heat sink 390.

  The lid 340 further includes a flange portion 345. The flange portion 345 vertically protrudes outward from the outer peripheral portion of the portion closing the other end of the peripheral wall portion 331. The flange portion 345 is connected to the flange portion 334 of the housing 330.

*** Description of the effect ***
A venting path is formed between the peripheral wall portion 331 of the housing 330 and the peak portion 391 of the heat sink 390, with the both ends of the peak portion 391 as the entrance and exit. Air is less likely to escape. In the present embodiment, since the vent 346 is provided in the portion closing the peripheral wall portion 331 of the lid 340, air can easily escape from the vent path having the outlet at the position corresponding to the vent 346. Thus, the heat dissipation of the housing 330 and the heat sink 390 is improved. Further, in the present embodiment, in addition to the air flow acceleration, there is also an effect of reducing the weight of the lighting device 100.

Fourth Embodiment
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order. The difference from Embodiment 1 will be mainly described.

*** Description of the configuration ***
With reference to FIG. 24, the structure of the illuminating device 100 which is an apparatus concerning this Embodiment is demonstrated.

  In the present embodiment, the configuration of the heat sink 390 is different from the configuration of the heat sink 390 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The heat sink 390 will be described in detail with reference to FIGS. 25 and 26 and FIGS. 27 and 28. In FIGS. 27 and 28, the flow of air is indicated by arrows.

  In the first embodiment, as shown in FIG. 7 and FIG. 8, the opening 393 is provided in the vicinity of the center of the heat sink 390 in the lengthwise direction of the peak 391. However, in the present embodiment, the opening 393 is provided. I can not. Therefore, the heat radiation area is increased, and the heat radiation efficiency is improved.

  As in the first embodiment, a ventilation path is formed between the peripheral wall portion 331 of the housing 330 and the peak portion 391 of the heat sink 390 with the both ends of the peak portion 391 as the entrance and exit. However, since there is no opening 393, air can not enter or exit in the middle of the ventilation path. Therefore, turbulent air flow does not occur between the housing 330 and the heat sink 390, and the air can be moved more smoothly, thereby improving the heat dissipation efficiency.

  The heat sink 390 is formed by pressing as in the first embodiment.

*** Description of the effect ***
In the present embodiment, in particular, when the installation environment of the lighting device 100 is an environment in which a large amount of air flow is unlikely to occur, the heat dissipation of the lighting device 100 is higher than that of the first embodiment.

  In the first embodiment, since the opening 393 is provided in the peak 391 of the heat sink 390 which is the outer shell of the lighting device 100, the peripheral portion of the opening 393 is subjected to R-surface processing, C-surface processing, etc. It is desirable to apply edge processing. Further, in the first embodiment, since there is a possibility that burrs may remain in the peripheral portion of the opening 393, it is desirable to deburr. On the other hand, in the present embodiment, there is no need to perform such secondary processing. For this reason, there is no possibility that processing wastes may be scattered in the manufacturing environment and the installation environment of the lighting device 100, and the factor of deteriorating the insulation performance of the manufacturing environment and the installation environment of the lighting device 100 can also be eliminated.

Embodiment 5
The difference between this embodiment and the first embodiment will be mainly described.

  In the present embodiment, the configuration of the heat sink 390 is different from the configuration of the heat sink 390 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the heat sink 390 will be described with reference to FIG.

  In the present embodiment, the heat sink 390 is of the corrugated type. The heat sink 390 is formed into a tubular shape by bending a long metal plate so as to alternately form the peak portions 391 and the valley portions 392 and fastening both end portions in the longitudinal direction. The heat sink 390 is press-fit into the housing 330, and the valley portion 392 is pressed against the peripheral wall portion 331 of the housing 330. The valley portion 392 may be partially crimped to the peripheral wall portion 331, or the valley portion 392 may be partially welded to the circumferential wall portion 331.

Sixth Embodiment
The difference between this embodiment and the first embodiment will be mainly described.

  In the present embodiment, the configuration of the heat sink 390 is different from the configuration of the heat sink 390 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the heat sink 390 will be described with reference to FIGS. 30 and 31.

  In the present embodiment, the heat sink 390 is of a press type, that is, an aperture type. The heat sink 390 is formed in a cylindrical shape by press molding. Like the housing 330, the heat sink 390 has a bottom wall at one end in the cylinder axial direction, and the other end is open. The heat sink 390 is press-fit into the housing 330, and the valley portion 392 is pressed against the peripheral wall portion 331 of the housing 330. The valley portion 392 may be partially crimped to the peripheral wall portion 331, or the valley portion 392 may be partially welded to the circumferential wall portion 331.

Embodiment 7
The difference between this embodiment and the first embodiment will be mainly described.

  In the present embodiment, the configuration of the heat sink 390 is different from the configuration of the heat sink 390 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the heat sink 390 will be described with reference to FIGS. 32 and 33.

  In the present embodiment, the heat sink 390 is of a direct attachment type. The heat sink 390 is comprised of a plurality of fins 394. Each fin 394 is directly attached to the circumferential wall portion 331 of the housing 330 using a method such as caulking, welding or the like. According to the present embodiment, it is possible to flexibly change the positions and the number of the fins to be attached according to the specification of the product.

  In the present embodiment, each fin 394 is crimped at a plurality of locations. Specifically, each of the fins 394 is crimped at three locations, which are small dashed dotted circles in the figure.

  In the present embodiment, each fin 394 is a flat plate having an L-shaped cross section, but may be a flat plate having a Z-shaped cross section, a flat plate having an M-shaped cross section, or any other shape.

Eighth Embodiment
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order. The difference from Embodiment 1 will be mainly described.

*** Description of the configuration ***
The configuration of a lighting apparatus 100 which is an apparatus according to the present embodiment will be described with reference to FIGS. 34 and 35.

  In the present embodiment, the power supply unit 300 does not have the heat sink 390. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

*** Description of the effect ***
In the present embodiment, by omitting the heat sink 390, it is possible to reduce the weight and the cost of the lighting device 100.

Embodiment 9
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order.

*** Description of the configuration ***
The configuration of a lighting apparatus 100 which is an apparatus according to the present embodiment will be described with reference to FIGS. 36 and 37.

  In the present embodiment, the configuration of lighting device 100 is the same as the configuration of lighting device 100 according to the first embodiment.

  The power supply unit 300 includes a pair of connectors 701 and a fixture 702.

  Each connector 701 connects the lid 340 to the housing 330. In the present embodiment, each connector 701 is a screw.

  The fixture 702 fixes the terminal block 350 to the lid 340. In the present embodiment, the fixture 702 is a screw.

  Hereinafter, the details of the lid 340 will be described.

  The lid 340 is elongated. The lid 340 has a closed portion 711 and a fixed portion 342. The bottom wall portion 332 of the housing 330 closes one end of the peripheral wall portion 331 of the housing 330, while the closing portion 711 closes the other end of the peripheral wall portion 331. The terminal block 350 is fixed to the fixing portion 342. The closing portion 711 and the fixing portion 342 are aligned along the direction of the central axis L1 of the lid 340, that is, the longitudinal direction of the lid 340. In the present embodiment, the fixing portion 342 is integrally formed with the closing portion 711. The closed portion 711 is formed in a rectangular plate shape in a portion connected to the fixed portion 342 and in a semicircular plate shape in a portion separated from the fixed portion 342.

  In the closed portion 711, the pair of connectors 701 is located at a position opposite to the central axis L 1 of the lid 340 on a straight line at an angle θ, that is, along a direction oblique to the longitudinal direction of the lid 340. The lid 340 is coupled to the housing 330 at the opposite position. Although the angle θ may be any angle larger than 0 degree and smaller than 180 degrees, it is 45 degrees in the present embodiment. That is, in the present embodiment, the pair of connectors 701 connect the lid 340 to the housing 330 at a position facing along the direction of 45 degrees with respect to the longitudinal direction of the lid 340 in the closing portion 711 Do.

  The lid 340 further includes a flange portion 345. The flange portion 345 is integrally molded with the closing portion 711 in the same manner as the fixing portion 342. The flange portion 345 protrudes from the outer peripheral portion of the semicircular plate-like portion of the closing portion 711 to the outside of the closing portion 711. Of the pair of connectors 701, one connector 701 is screwed into a screw hole provided in one flange portion 334 of the housing 330 through a screw hole provided in the flange portion 345. The other connector 701 is provided at a position facing the screw hole of the flange portion 345 on a straight line at an angle θ with respect to the central axis L1 of the lid 340 in the rectangular plate-like portion of the closing portion 711 The screw is screwed into the screw hole provided in the other flange portion 334 of the housing 330 through the screw hole. Thus, the lid 340 is screwed to the flange portion 334 of the housing 330.

  A step 720 is provided on the upper surface which is one side of the lid 340. Specifically, a U-shaped step 720 in plan view is provided on one end side in the longitudinal direction of the lid 340. The lid 340 closes the other end of the peripheral wall portion 331 at a portion corresponding to the high step 721 of the upper surface of the lower surface which is the surface opposite to one side. In addition, the terminal block 350 is fixed to a portion of the lower surface of the lid 340 at least a part of which corresponds to the lower step 722 of the upper surface. Specifically, in the lower surface of the lid 340, the terminal block 350 is fixed to a portion of the lower surface corresponding to the lower level 722 of the upper surface and the remaining portion corresponding to the upper level 721 of the upper surface. That is, in the present embodiment, a part of the high step 721 of the lid 340 corresponds to the closed portion 711, and the remaining part of the high step 721 of the lid 340 and the low step 722 correspond to the fixing part 342.

  The fixture 702 protrudes from the lower step 722 on the top surface of the closing portion 711. It is desirable that the size D 1 of the step 720 be equal to or greater than the length of the protruding portion of the fixture 702. The step 720 is formed by deforming a metal plate to be the lid 340 by a method such as drawing.

*** Description of the effect ***
In the present embodiment, the lid 340 is fixed to the flange portion 334 using the connector 701 which is two screws, but the position of screwing is to miniaturize the power supply unit 300 and the lighting apparatus 100. It is decided to satisfy the following requirements.
-Screwing is performed in the position which does not become an obstacle, when attaching the illuminating device 100 to a ceiling etc.
The screwing is performed at a position which does not disturb the wiring of the input wire 360 electrically connecting the terminal block 350 and the power supply substrate 310. Specifically, screwing is performed at a position that does not interfere with the end of the input wire 360.
-Screwing is performed at a position where the stress on the lid 340 can be supported as much as possible.
-Screwing is performed at a position where it can support the stress at the time of wiring to the terminal block 350 as much as possible.

  In the present embodiment, screw holes are provided at two positions symmetrical with respect to the longitudinal direction which is a direction along the projecting direction of the terminal block 350 of the lid 340, The lid 340 is fixed to the flange portion 334 by screwing the connector 701 into the screw hole. Therefore, the above conditions can be satisfied in a well-balanced manner. The angles with respect to the longitudinal direction may be different from each other. The screwing position is not limited to two, and may be one or three or more. The number of flanges 334 of the housing 330 is appropriately changed in accordance with the number of screwing points.

  According to the present embodiment, the wiring of the input wire 360 is not disturbed when the lighting device 100 is assembled. In addition, when the lighting device 100 is attached, a worker holding the lid 340 can maximally absorb the stress applied to the lid 340 or the stress applied to the lid 340 by the wiring operation.

  In the present embodiment, the portion of the lid 340 to which the terminal block 350 is attached is offset to the light source side. For this reason, it can prevent that the height dimension of the illuminating device 100 becomes large by protruding the fixing tool 702 upwards. That is, according to the present embodiment, the height of the lighting device 100 can be suppressed to a low level, and the lighting device 100 can be adapted to a narrow installation environment in the height direction. Also in the second embodiment and the third embodiment, the same effect can be obtained because the portion of the lid 340 to which the terminal block 350 is attached is offset to the light source side. The same effect can be obtained as long as at least the portion of the lid 340 where the fixing tool 702 is disposed is offset to the light source side, even if the entire portion of the lid 340 to which the terminal block 350 is attached is not offset to the light source side. Is obtained.

  In the present embodiment, the step 720 is formed by partially squeezing the metal plate to be the lid 340. Therefore, the strength against bending of the lid of the lid 340 is increased. Also in the second embodiment and the third embodiment, the same effect can be obtained because the metal plate to be the lid 340 is partially squeezed.

Embodiment 10
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order. Mainly differences from the first embodiment and the ninth embodiment will be described.

*** Description of the configuration ***
In the present embodiment, the configuration of the cover 340 of the power supply unit 300 is different from the configuration of the cover 340 of the power supply unit 300 in the first and ninth embodiments. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first and ninth embodiments. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment and the ninth embodiment.

  The configuration of the lid 340 will be described with reference to FIGS. 38 and 39.

  As in the first and ninth embodiments, the flange portion 345 protrudes from the outer peripheral portion of the semicircular plate-like portion of the closing portion 711 to the outside of the closing portion 711. Of the pair of connectors 701, one connector 701 is screwed into a screw hole provided in one flange portion 334 of the housing 330 via the screw hole 703 provided in the flange portion 345. The other connector 701 is located at a position facing the screw hole 703 of the flange 345 on a straight line at an angle θ with respect to the central axis L1 of the lid 340 in a rectangular plate-like portion of the closing portion 711 It is screwed into the screw hole provided in the other flange portion 334 of the housing 330 through the provided screw hole 703. Thus, the lid 340 is screwed to the flange portion 334 of the housing 330.

  In the present embodiment, a step 720 having a linear shape in plan view is provided from one end of the lid 340 in the short direction to the other end. The lid 340 closes the other end of the peripheral wall portion 331 at a portion corresponding to the upper step 721 on the lower surface. In addition, the terminal block 350 is fixed to a portion of the lower surface of the lid 340 at least a part of which corresponds to the lower step 722 of the upper surface. Specifically, the terminal block 350 is fixed to a portion of the lower surface of the lid 340 corresponding to the entire lower surface 722 of the upper surface. That is, in the present embodiment, the high step 721 of the lid 340 corresponds to the closing portion 711, and the low step 722 of the lid 340 corresponds to the fixing portion 342.

  As in the first embodiment and the ninth embodiment, the fixture 702 protrudes from the lower step 722 of the upper surface of the closing portion 711. It is desirable that the size D 1 of the step 720 be equal to or greater than the length of the protruding portion of the fixture 702. The step 720 is formed by deforming a metal plate to be the lid 340 by a method such as pressing.

*** Description of the effect ***
In the present embodiment, it is possible to perform stable forming at high speed by simple pressing instead of partially squeezing the metal plate to be the lid 340. Therefore, the manufacturing quality can be maintained at a high level, and mass production becomes easy. In addition, the manufacturing cost and the unit cost can be reduced.

Embodiment 11
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order. The difference from Embodiment 1 will be mainly described.

*** Description of the configuration ***
In the present embodiment, the configuration of the housing 370 of the power supply unit 300 is different from the configuration of the housing 370 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the container 370 will be described with reference to FIG.

  As in the first embodiment, the housing 370 has a bridge portion 379. The bridge portion 379 protrudes from one end of the peripheral wall of the first accommodation portion 371, and fits in a notch 335 provided in the peripheral wall portion 331 of the housing 330. The input wire 360 enters the first accommodating portion 371 from the outside of the accommodating body 370 and the housing 330 through the groove 380 provided in the bridge portion 379. That is, the input wire 360 enters the inside of the housing 330 from the outside of the housing 330 through the notch 335 provided in the peripheral wall portion 331.

  As in the first embodiment, the first housing portion 371 is provided with a partition wall 382 for partitioning the internal space along the axial direction of the housing 370. The partition wall 382 divides the internal space of the first accommodation portion 371 to form a first accommodation room 383 far from the bridge 379 and a second accommodation room 387 near the bridge 379. At one end of the partition wall 382, a recessed portion 389 is formed, which passes the input wire 360 from the bridge portion 379 to the first storage chamber 383 over the second storage chamber 387 and the partition wall 382.

  As in the first embodiment, the length of the groove 380 provided in the bridge portion 379 is longer than the length of the recess 389 formed in one end of the partition wall 382. On the other hand, the width of the groove 380 provided in the bridge portion 379 is the same as the width of the recess 389 formed in one end of the partition wall 382. The depth of the groove 380 provided in the bridge portion 379 is also the same as the depth of the recess 389 formed in one end of the partition wall 382. The shape of the groove 380 provided in the bridge portion 379 is also the same as the shape of the recess 389 formed in one end of the partition wall 382. The shape of groove 380 and recess 389 is in the form of an angular groove having a width dimension larger than a depth dimension as shown in FIGS. 10 and 11 in the first embodiment, but in the present embodiment, FIG. It has a V-shaped groove as shown in FIG. The shape of the groove 380 and the recess 389 may be another shape, and more specifically, a semicircular groove shape as shown in FIG. 41, a corner whose depth dimension is larger than the width dimension as shown in FIG. It may be in the form of a groove, an inverted M-shaped groove not shown, a W-shaped groove or the like. When the shape of the groove 380 and the recess 389 is an inverted M-shaped groove shape or a W-shaped groove shape, the wiring path can be dispersed at the two deepest positions. The groove 380 and the recess 389 may also serve as a tension stop for the input wire 360, in which case the width of the groove 380 and the recess 389 is slightly smaller than the outer diameter including the coating of the input wire 360.

  In the bridge portion 379, it is desirable that edge processing such as R-surface processing and C-surface processing be performed on the corner where the input wire 360 passes or intersects.

  The depth of the recess 389 formed at one end of the partition wall 382 may be deeper than the depth of the groove 380 provided in the bridge portion 379. In that case, the length of the input wire 360 can be shortened.

  Although not shown, the partition wall 382 may be provided with a support on which the input wire 360 is wound for tensioning the input wire 360.

*** Description of the effect ***
In the present embodiment, as in the first embodiment, the presence of the bridge portion 379 can prevent the input electric wire 360 from being disconnected by touching the sharp edge of the housing 330 or from being disconnected.

Embodiment 12
The configuration of the apparatus according to the present embodiment and the effects of the present embodiment will be described in order. The difference from Embodiment 1 will be mainly described.

*** Description of the configuration ***
In the present embodiment, the configuration of the housing 370 of the power supply unit 300 is different from the configuration of the housing 370 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the container 370 will be described with reference to FIGS. 43 and 44.

  As in the first embodiment, the housing 370 has a bridge portion 379. The bridge portion 379 protrudes from one end of the peripheral wall of the first accommodation portion 371, and fits in a notch 335 provided in the peripheral wall portion 331 of the housing 330. The input wire 360 enters the first accommodating portion 371 from the outside of the accommodating body 370 and the housing 330 through the groove 380 provided in the bridge portion 379. That is, the input wire 360 enters the inside of the housing 330 from the outside of the housing 330 through the notch 335 provided in the peripheral wall portion 331.

  As in the first embodiment, the first housing portion 371 is provided with a partition wall 382 for partitioning the internal space along the axial direction of the housing 370. The partition wall 382 divides the internal space of the first accommodation portion 371 to form a first accommodation room 383 far from the bridge 379 and a second accommodation room 387 near the bridge 379. At one end of the partition wall 382, a recessed portion 389 is formed, which passes the input wire 360 from the bridge portion 379 to the first storage chamber 383 over the second storage chamber 387 and the partition wall 382.

  In the present embodiment, the bridge portion 379 extends to one end of the partition wall 382 and is fitted into the recess 389 formed in one end of the partition wall 382.

  The bridge portion 379 is integral with the first accommodation portion 371 in the first embodiment, but is separate from the first accommodation portion 371 in the present embodiment. At one end of the peripheral wall of the first accommodation portion 371, a notch 801 is provided which passes the bridge portion 379 from the inside of the first accommodation portion 371 to the outside of the first accommodation portion 371.

  As described above, in the present embodiment, the bridge portion 379 is fitted in the recess 389 formed at one end of the partition wall 382 and the notch 801 provided at one end of the peripheral wall of the first accommodation portion 371. It is attached to the first accommodation portion 371.

  The shape of the groove 380 is not limited to an angular groove shape having a width dimension larger than the depth dimension, and a V-shaped groove shape, a semicircular groove shape, an angular groove shape having a depth dimension larger than the width dimension, an inverted M shape It may be any shape such as a groove shape or a W-shaped groove shape. The groove 380 may also serve as a tension stop for the input wire 360, in which case the width of the groove 380 is slightly narrower than the outer diameter including the coating of the input wire 360.

  As shown in FIG. 45, holes 802 may be provided in the bridge portion 379 instead of the grooves 380 for passing the input wires 360. That is, the bridge portion 379 may be cylindrical. Specifically, the bridge portion 379 may have a rectangular cylindrical shape or a cylindrical shape.

  A configuration in which the partition wall 382 is detachably attached to the first accommodation portion 371 may be adopted. In that case, the bridge portion 379 may be integrally formed with the partition wall 382.

  The bridge portion 379 may be integrally formed with the lid 340.

*** Description of the effect ***
In the present embodiment, as in the first embodiment, the presence of the bridge portion 379 can prevent the input electric wire 360 from being disconnected by touching the sharp edge of the housing 330 or from being disconnected.

  In this embodiment, the bridge portion 379 is used as a separate member, and a configuration is adopted in which the peripheral wall portion 331 of the housing 330, the peripheral wall of the second storage chamber 387, and the partition wall 382 are straddled. For this reason, the shape of the container 370 can be made into a simple cylindrical shape, and the mold for molding can be simplified. In addition, the rigidity of the containing body 370, that is, the structural strength is increased. Furthermore, since the housing 370 has no part projecting in the direction perpendicular to the tube axis direction, the bridge part 379 will not be caught by other members during the assembly operation or the like.

Thirteenth Embodiment
The difference between this embodiment and the twelfth embodiment will be mainly described.

  In the present embodiment, power supply unit 300 includes a wire 810 different from input wire 360.

  The electric wire 810 electrically connects the control board or the like stored in the second storage chamber 387 and the terminal block 350, thereby providing an input path of power from the external power supply to the control circuit or the like.

  In the present embodiment, the configuration of the housing 370 is different from the configuration of the housing 370 in the twelfth embodiment.

  The configuration of the containing body 370 will be described with reference to FIGS. 46 and 47.

  In the present embodiment, a recess 803 for passing the electric wire 810 from the outside of the housing 370 to the second storage chamber 387 beyond the peripheral wall of the first housing 371 is provided at one end of the peripheral wall of the first housing 371. It is formed in the middle of the notch 801. Specifically, the recess 803 is formed by cutting the central portion of the notch 801 more deeply.

  In the present embodiment, since the wiring path of the input wire 360 and the wiring path of another electric wire 810 are separated by the presence of the bridge portion 379, the wiring operation can be smoothly performed.

Fourteenth Embodiment
The difference between this embodiment and the twelfth embodiment will be mainly described.

  In the present embodiment, power supply unit 300 includes a wire 810 different from input wire 360.

  The electric wire 810 electrically connects the control board or the like stored in the second storage chamber 387 and the terminal block 350, thereby providing an input path of power from the external power supply to the control circuit or the like.

  In the present embodiment, the configuration of the housing 370 is different from the configuration of the housing 370 in the twelfth embodiment.

  The configuration of the housing 370 will be described with reference to FIGS. 48 and 49.

  In the present embodiment, the housing 370 has a bridge 804 which is different from the bridge 379. Another bridge portion 804 overlaps with the bridge portion 379 and protrudes from one end of the peripheral wall of the first accommodation portion 371, and fits in a notch 335 provided in the peripheral wall portion 331 of the housing 330. The bridge portion 379 is separate from the first accommodation portion 371, but another bridge portion 804 is integral with the first accommodation portion 371.

  The electric wire 810 enters the second storage chamber 387 from the outside of the housing 370 and the housing 330 through a groove 805 provided in another bridge 804. A hole may be provided in another bridge 804 instead of the groove 805 to pass the wire 810.

  In the present embodiment, since the bridge portion 379 and the other bridge portion 804 are provided, the wiring path of the multilayer structure is configured, so that the wiring operation can be smoothly performed.

Embodiment 15
The difference between this embodiment and the first embodiment will be mainly described.

  In the present embodiment, the configuration of the housing 370 of the power supply unit 300 is different from the configuration of the housing 370 of the power supply unit 300 in the first embodiment. The other configuration of power supply unit 300 is the same as the configuration of power supply unit 300 in the first embodiment. The configuration other than the power supply unit 300 of the lighting device 100 is the same as the configuration of the lighting device 100 according to the first embodiment.

  The configuration of the container 370 will be described with reference to FIGS. 50, 51, and 52.

  In the present embodiment, the through hole 374 provided on the bottom wall of the second accommodation portion 372 gradually narrows from the inside of the second accommodation portion 372 toward the outside of the second accommodation portion 372. That is, the vertical cross section of the through hole 374 provided in the column portion 375 is tapered in a taper shape toward the tip of the column portion 375. In other words, in the cross section of the through hole 374, the opening area is smaller on the tip end side than on the side closer to the second accommodation portion 372 of the column portion 375. Thus, the output wire 320 can be easily inserted into the through hole 374.

  It is desirable that edge processing such as R-surface processing and C-surface processing be performed on the tip end portion of the column portion 375 with which the output wire 320 contacts.

  The cross-sectional shape of the through hole 374 provided in the column portion 375, that is, the opening shape of the through hole 374 may be a polygon such as a rectangle, or may be a circle such as a perfect circle, an ellipse, or an oval. And other shapes such as a star shape may be used. Similarly, the outer shape of the cross section of the column portion 375 may be a polygon such as a rectangle, a circle such as a perfect circle, an ellipse, an oval, or any other shape such as a star.

  In the present embodiment, as in the first embodiment, the recesses 386 of the column portion 375 are provided at two locations, but the recesses 386 may be provided at only one location, specifically, only on one side. , May be provided in three or more places. In particular, when the wiring path of the output wire 320 is in one direction, or when a plurality of wiring paths of the output wire 320 are close, the recess 386 may be provided at one place.

  The recess 386 may also serve as a tension stop for the output wire 320. In that case, the width of the recess 386 is slightly smaller than the outer diameter including the coating of the output wire 320. Since the recess 386 holds the output wire 320, the output wire 320 does not rub against the recess 386 and receive damage even if vibration or impact is applied to the output wire 320. Further, the connector 212 of the light source substrate 210 Poor connection can also be prevented.

  In the present embodiment, as in the first embodiment, the column portion 375 is provided at only one place, but the column portion 375 is the number and arrangement of objects to which the output wire 320 is electrically connected, specifically, Depending on the number and arrangement of the connectors 212, two or more locations may be provided.

  The column portion 375 may be press-fit into the through hole 333 of the housing 330. In that case, the housing body 370 can be fixed so as not to be detached from the housing 330, and screwing becomes unnecessary.

  The post 375 may include a locking mechanism. Specifically, the column portion 375 may have a protrusion that catches on the peripheral portion of the through hole 333 in a state where the column portion 375 is inserted into the through hole 333 of the housing 330. Also in this case, the housing 370 can be fixed so as not to be detached from the housing 330, and screwing becomes unnecessary.

  The column portion 375 may be configured as a tubular rivet separate from the second housing portion 372. In that case, the rivets to be the column portions 375 are press-fit into the through holes 374 provided in the bottom wall of the second housing portion 372 in the state where the output wire 320 is inserted, It is fixed. The rivet forming the column portion 375 may also serve as a tension stop for the output wire 320. Moreover, the rivet which becomes the pillar portion 375 may also have a function of fixing the bottom wall of the housing 370 and the bottom wall portion 332 of the housing 330. In that case, the housing body 370 can be fixed so as not to be detached from the housing 330, and screwing becomes unnecessary.

  In the first embodiment, the second accommodation portion 372 is opened in the outer circumferential direction. Therefore, the through hole 374 can be easily viewed from the outside of the housing 370, and the output wire 320 can be easily inserted into the through hole 374. On the other hand, in the present embodiment, the second accommodation portion 372 is closed in the outer circumferential direction in the same manner as the first accommodation portion 371. Therefore, the rigidity of the housing 370 can be increased, and the structural strength of the lighting device 100 can be enhanced. Further, the output wire 320 can be protected by separating it from the housing 330 that exhibits the heat dissipation function. The possibility of the output wire 320 being pinched between the housing 370 and the housing 330 is also eliminated, and the coating of the output wire 320 can be prevented from being damaged and a short circuit of the output wire 320 can be prevented. Further, the housing 370 intervenes between the output wire 320 and the housing 330 to improve the insulation performance. In particular, when the housing 330 is formed of a metal material and receives external noise of high voltage from the outside of the lighting apparatus 100, the external noise propagates to the output wire 320 and damages the light emitting element 211 and the lighting circuit 311. It can prevent giving.

  In the present embodiment, the inner wall surface 806 of the second housing portion 372 is inclined, whereby the internal space of the second housing portion 372 is gradually moved toward the through hole 374 provided in the bottom wall of the second housing portion 372. It has become narrow. That is, in the second accommodation portion 372, the inner wall surface 806 is inclined in a funnel shape toward the through hole 374. Therefore, even if the through hole 374 can not be viewed from the outside of the housing 370, the output wire 320 can be smoothly inserted into the through hole 374.

  As mentioned above, although embodiment of this invention was described, you may combine and implement some of these embodiment. Alternatively, any one or some of these embodiments may be partially implemented. For example, any one of those described as “parts” in the description of these embodiments may be adopted, or some arbitrary combination may be adopted. The present invention is not limited to these embodiments, and various modifications can be made as needed.

The power supply unit for illumination according to the embodiment of the present invention is
It is a power supply unit for illumination which supplies lighting power to a light source unit in which a light source circuit including a light emitting element is disposed,
A power supply board on which a lighting circuit is disposed;
A housing for housing the power supply substrate;
A housing which has a cylindrical peripheral wall portion and a bottom wall portion closing one end of the peripheral wall portion, the housing is accommodated inside, and the light source unit can be connected to the bottom wall portion from the outside;
A lid for closing the other end of the peripheral wall portion;
A terminal block disposed outside the housing in a state of being fixed to the lid;
The housing body has a bridge portion which protrudes from the peripheral wall of the housing body toward the terminal block and is fitted to a notch or a through hole provided in the peripheral wall portion.

  The bridge portion is disposed between the power supply substrate housed in the housing and the terminal block.

The housing body has a first housing portion and a second housing portion separated from the first housing portion by a partition wall,
The bridge portion protrudes from the peripheral wall of the first accommodation portion toward the terminal block.

  The power supply substrate is housed in the first housing portion.

The power supply unit is
It further includes an input wire which passes through the bridge portion and electrically connects the power supply substrate and the terminal block to be an input path of lighting power to the lighting circuit.

The bridge portion is provided with a groove or a hole from the outside of the housing toward the inside of the container;
The input wire enters the inside of the housing from the outside of the housing through the groove or the hole.

The container is provided with a partition wall which partitions the internal space of the container and forms a first storage chamber far from the bridge portion and a second storage chamber near the bridge portion,
A recess for passing the input wire from the bridge portion to the first storage chamber over the second storage chamber and the partition wall is formed at one end of the partition wall.

The power supply unit is
The input wire is a wire different from the input wire, and further includes a wire entering the second storage chamber from the outside of the housing.

A lighting device according to an embodiment of the present invention is
The power supply unit;
The light source circuit is disposed, and includes a light source unit connected to the bottom wall portion from the outside of the housing.

  DESCRIPTION OF SYMBOLS 100 illumination device, 200 light source unit, 210 light source substrate, 211 light emitting element, 212 connector, 220 plate member, 221 plate surface, 222 plate surface, 230 insulating sheet, 240 reflecting plate, 241 opening portion, 242 rib, 243 inner circumferential wall , 244 hooks, 245 latches, 250 diffusion plates, 300 power supply units, 310 power supply boards, 311 lighting circuits, 320 output wires, 330 housings, 331 peripheral walls, 332 bottom walls, 333 through holes, 334 flanges, 335 cut Notched, 336 continuous portion, 340 lid, 341 disc portion, 342 fixed portion, 343 continuous portion, 344 notch, 345 flange portion, 346 vent hole, 350 terminal block, 360 input electric wire, 370 container, 371 first Housing section, 372 second housing section, 373 partition, 374 penetration Hole, 375 pillar portion, 376 recess portion, 377 boss portion, 378 screw hole, 379 bridge portion, 380 groove, 381 outer peripheral surface, 382 partition wall, 383 first storage chamber, 384 raised portion, 385 substrate insertion guide, 386 recess portion, 387 second storage room, 388 board insertion guide, 389 recess, 390 heat sink, 391 peak, 392 valley, 393 opening, 394 fin, 400 frame, 500 leaf spring, 600 ceiling material, 601 embedded hole, 701 connector 702 fasteners, 703 screw holes, 711 closed sections, 720 steps, 721 high steps, 722 low steps, 801 notches, 802 holes, 803 recesses, 804 bridges, 805 grooves, 806 inner wall surface, 810 wires.

Claims (7)

A power supply unit for illumination which supplies lighting power to a light source unit having a light source substrate on which a light source circuit including a light emitting element is disposed,
A power supply board on which a lighting circuit is disposed;
The light source unit has a bottom wall from the outside with the cylindrical peripheral wall and the bottom wall closing one end of the peripheral wall, and the light source substrate is electrically insulated from the bottom wall. Connectable housing ,
A housing housed inside the housing and housing the power supply substrate ;
Power unit for illuminating a gap there Ru between the inner peripheral surface and the outer peripheral surface of the housing body of the peripheral wall of the housing. A power supply unit for illumination which supplies lighting power to a light source unit having a light source substrate on which a light source circuit including a light emitting element is disposed,
A power supply board on which a lighting circuit is disposed;
The light source unit has a bottom wall from the outside with the cylindrical peripheral wall and the bottom wall closing one end of the peripheral wall, and the light source substrate is electrically insulated from the bottom wall. Connectable housing ,
A housing housed inside the housing and housing the power supply substrate ;
The said power supply unit for illumination which has a partition which forms the 1st accommodating part and the 2nd accommodating part . The light source unit can be connected to the bottom wall from the outside in a state in which the light source substrate is electrically isolated from the housing and the light source substrate is electrically connected to the power supply substrate. The power supply unit for illumination according to claim 1 or 2 . In the case where the housing electrically connects the light source substrate to the bottom wall portion and the insulating sheet is disposed between the light source substrate and the bottom wall portion, the light source unit is attached to the bottom wall portion from the outside The power supply unit for illumination according to any one of claims 1 to 3, which is connectable.   By electrically connecting the power supply substrate and the light source substrate through the through hole provided in the bottom wall of the housing and the through hole provided in the bottom wall, the lighting circuit The power supply unit for lighting according to claim 4, further comprising an output wire which is an output path of lighting power to the light source circuit. A power supply unit for lighting according to any one of claims 1 to 5.
An illumination apparatus comprising: the light source substrate; and a light source unit connected to the bottom wall from the outside of the housing. The light source unit is
The lighting device according to claim 6, further comprising: an insulating sheet disposed between the light source substrate and the bottom wall to electrically insulate the light source substrate from the bottom wall.