JP6399448B2 - Light source unit and lighting apparatus - Google Patents

Description

  The present invention relates to a light source unit and a lighting fixture using the light source unit.

  As a conventional example, a light source unit and a lighting fixture described in Patent Document 1 are illustrated. The lighting fixture described in Patent Document 1 includes a light source unit and a fixture body.

  The light source unit includes a substrate on which a plurality of light emitting diodes are mounted, an attachment member to which the substrate is attached, and a cover member that is attached to the attachment member so as to cover the substrate.

  The substrate is provided with a plurality of rectangular grooves. The attachment member includes a side surface portion having an inclined portion and a bottom surface portion. At the center of the bottom surface portion of the mounting member, a recess for receiving the substrate is provided, and the mounting member is provided with a plurality of caulking portions for fixing the substrate placed on the recess. The cover member has a protruding wall portion and a protruding portion provided on the protruding wall portion.

  The substrate is attached to the attachment member by caulking each caulking portion inserted through the plurality of grooves. The cover member is fixed to the mounting member by the projections provided on the protruding wall portions being hooked on the inclined portions provided on the side surfaces of the mounting member.

JP 2014-116299 A

  Incidentally, in the light source unit and the lighting fixture described in Patent Document 1, further cost reduction is desired.

  The present invention has been made in view of the above reasons, and aims to further reduce the cost.

The light source unit of the present invention includes a light source module, and a cover, wherein the light source module comprises a substrate and a plurality of solid state light emitting element mounted on one surface of the substrate, the cover includes a plurality of said solid state light The substrate includes a side wall and a bottom wall that transmit light emitted from the device, and is formed so as to cover the light source module, and the side wall has a peripheral edge of the substrate such that a plurality of the solid state light emitting devices face the bottom wall. A holding portion that holds a portion, and one or a plurality of attached portions, wherein the attached portion is arranged in a direction away from the bottom wall in a first direction in which the solid-state light emitting element and the bottom wall face each other. A leg portion that protrudes from only a part of the leg portion, and a hook portion that protrudes from the tip of the leg portion in the second direction intersecting the first direction and is hooked on the attachment member, , relative to the mounting member Characterized in that it is configured to be detachably attached.

  The lighting fixture of this invention is equipped with the said light source unit and the fixture main body which has the said attachment member, It is characterized by the above-mentioned.

  The light source unit and the lighting fixture of the present invention have an effect that the cost can be further reduced.

It is a disassembled perspective view which shows embodiment of the lighting fixture which concerns on this invention. It is a disassembled perspective view which shows embodiment of the light source unit which concerns on this invention. FIG. 3A is a perspective view showing the main parts of the light source unit and the lighting fixture, and FIG. 3B is a cross-sectional view showing the main parts of the light source unit and the lighting fixture. It is a cross-sectional perspective view which shows the principal part of a light source unit same as the above and a lighting fixture. It is sectional drawing which shows the principal part of a light source unit same as the above and a lighting fixture. It is sectional drawing which shows the principal part of a light source unit same as the above and a lighting fixture.

  Hereinafter, embodiments of the light source unit 1 and the lighting apparatus according to the present invention will be described in detail with reference to FIGS. 1 to 6.

  In this embodiment, a ceiling-embedded lighting fixture is illustrated. However, it is possible to apply the technical idea of the present invention to lighting fixtures other than the ceiling-embedded type.

  In the following description, unless otherwise specified, in FIG. 1 and FIG. 2, the vertical and horizontal directions of the light source unit 1 and the lighting fixture are defined.

  The lighting fixture of this embodiment is provided with the light source unit 1, the fixture main body 2, and the power supply unit 6 as shown in FIG.

  Initially, the light source unit 1 of this embodiment is demonstrated with reference to FIG.2 and FIG.3.

  As shown in FIG. 2, the light source unit 1 includes a light source module 3, a cover 4, and a cover end 45.

The light source module 3 includes a substrate 31 and a solid light emitting element, for example, an LED (light emitting diode) 32. The board | substrate 31 is formed in the elongate plate shape with the insulating material (for example, ceramic). A plurality of LEDs 32 are mounted on the front surface (lower surface) of the substrate 31 so as to be arranged in a line along the longitudinal direction of the substrate 31 at the center in the short direction of the substrate 31 (see FIG. 3). .

  The cover 4 is configured by integrally forming a semi-cylindrical bottom wall 42 and side walls 41 protruding from both left and right ends of the bottom wall 42 with a synthetic resin material (for example, acrylic resin) having translucency. . Each side wall 41 is formed in a rectangular flat plate shape, and a holding groove 43 made of a long concave groove having a longitudinal direction in the front-rear direction is provided on each inner side surface. In addition, a pair of attached portions 44 are integrally provided at the upper end of each side wall 41 so as to be aligned in the front-rear direction and protrude upward. The attached portion 44 includes a leg portion 441 and a hooking portion 442 provided at the tip of the leg portion 441. The hook portion 442 has a triangular prism shape with the front-rear direction as the axial direction, and is formed so that the lower end of the slope protrudes inward from the leg portion 441.

  As shown in FIG. 2, the cover end 45 is formed into a thin semi-elliptical plate shape with a light-transmitting material (for example, acrylic resin), and is attached to both ends in the longitudinal direction of the cover 4.

  As shown in FIG. 3, the light source module 3 is attached to and held by the cover 4 by inserting both end portions along the longitudinal direction of the substrate 31 into the holding grooves 43 of the side walls 41. However, the light source module 3 is held by the cover 4 so that the surface of the substrate 31 (the surface on which the LEDs 32 are mounted) faces the bottom wall 42. The cover end 45 is attached to both ends in the longitudinal direction of the cover 4 and closes both ends in the longitudinal direction of the cover 4. However, either one of the cover ends 45 may be attached to the cover 4 before the substrate 31 is attached to the holding groove 43.

  Next, the fixture main body 2 of the lighting fixture of this embodiment is demonstrated with reference to FIG.

  The instrument body 2 is attached to a suspension bolt provided on the ceiling slab.

  The instrument main body 2 includes a main body portion 20 and an attachment member 24.

  As shown in FIG. 1, the main body 20 includes a rectangular tube-shaped frame body 201 and a rectangular flat plate base plate 23. The main body 20 is formed in a rectangular box shape whose bottom surface is opened by coupling the frame body 201 and the base plate 23.

  The frame body 201 includes a pair of first side plates 21 facing in the front-rear direction, a pair of second side plates 22 facing in the left-right direction, and a flange 202.

  The first side plate 21 is a rectangular plate-like vertical plate 211, an inclined plate 212 that protrudes obliquely downward from the lower end edge of the vertical plate 211, and a horizontal plate that protrudes from the upper end edge of the vertical plate 211 opposite to the inclined plate 212 and horizontally. The attachment piece 213 is integrally formed of a metal plate such as a steel plate.

  In the second side plate 22, a trapezoidal vertical plate 221 and a mounting piece 222 that protrudes inward and horizontally from the upper edge of the vertical plate 221 are integrally formed of a metal plate such as a steel plate. The attachment piece 222 is provided with two latches 223 at intervals in the front-rear direction. The latch 223 includes a knob formed in a narrow rectangular parallelepiped shape, and a support portion that rotatably supports the knob.

  As for the 1st side plate 21, the 2nd side plate 22 is couple | bonded with the both ends in a longitudinal direction (left-right direction), respectively. That is, the joining piece 224 of the second side plate 22 is welded to the vertical plate 211 and the inclined plate 212 of the first side plate 21 so that the first side plate 21 and the second side plate 22 are coupled. The flange 202 is formed in a rectangular frame shape by processing a metal plate, and is joined to the lower end edges of the first side plate 21 and the second side plate 22 by welding or the like.

  The base plate 23 is formed by processing a metal plate such as a steel plate into a rectangle. However, the strength of the base plate 23 is improved by bending the four sides in the same direction (downward). The base plate 23 is provided with an insertion hole 231 through which a power supply line for power feeding is inserted. A power line inserted through the insertion hole 231 is connected to a terminal block fixed to the lower surface of the base plate 23. One end of the cable is connected to the terminal block provided on the lower surface of the base plate 23. The other end of this cable is electrically connected to the input connector of the power supply unit 6. Therefore, AC power is supplied from the external power supply to the power supply unit 6 through the terminal block. Further, the base plate 23 is provided with a plurality of (three in the illustrated example) bolt insertion holes 232 through which the suspension bolts are inserted, arranged in a line in the front-rear direction.

  The attachment member 24 is formed in a rectangular plate shape using a steel plate or the like. The attachment member 24 is preferably configured such that a plurality (three in the illustrated example) of the light source units 1 are attached. Therefore, it is preferable that the mounting member 24 is provided with mounting holes 241 each having a set of four with respect to one light source unit 1 with a certain interval in the left-right direction. Therefore, the three light source units 1 are attached to the lower surface of the attachment member 24 in parallel with each other and at equal intervals with the adjacent light source unit 1. In addition, the attachment member 24 is provided with two rectangular insertion holes 242 that are fixed to the second side plate 22 using the latch 223, with two left and right ends spaced apart from each other.

  The power supply unit 6 includes a power supply circuit configured by mounting electronic components on a printed wiring board formed in a long rectangular plate shape, and a case for housing the power supply circuit. As shown in FIG. 1, the case is formed in a long box shape with a lower surface opened by a metal plate material. However, each of the pair of side plates facing the longitudinal direction of the case is provided with a through hole. The power supply circuit is configured to convert an AC voltage / AC current supplied from an external power source into a DC voltage / DC current. Such a power supply circuit is realized by mounting electrical components such as a switching element and a smoothing capacitor on the printed wiring board.

  As shown in FIG. 1, the power supply unit 6 is attached to the upper surface of the attachment member 24 by an appropriate method such as screwing.

  Finally, a method for attaching the light source unit 1 of the present embodiment to the instrument body 2 will be described with reference to FIGS.

  First, the operator inserts the leg portion 441 of the light source unit 1 into the mounting hole 241 of the mounting member 24 from below. At this time, the inclined surface of the hook portion 442 hits the inner end of the mounting hole 241. Then, when the light source unit 1 is pushed further upward, the hook portion 442 is pushed to the periphery of the mounting hole 241, whereby the leg portion 441 is bent, and the hook portion 442 eventually passes through the mounting hole 241. And if the hook part 442 passes the attachment hole 241, the leg part 441 will return. As a result, the light source unit 1 is attached to the attachment member 24 by the hook portion 442 being hooked around the upper surface side of the attachment hole 241 (see FIG. 3).

  Next, the operator inserts the suspension bolt into the three bolt insertion holes 232 of the base plate 23 and tightens the nut to fix the base plate 23 to the suspension bolt. Then, the worker embeds the main body portion 20 other than the flange 202 in the embedding hole of the ceiling material so that the flange 202 is exposed on the lower surface.

  The operator overlaps the latch 223 provided on the second side plate 22 with the insertion hole 242 of the attachment member 24 and inserts the knob of the latch 223 into the insertion hole 242 from above. The operator fixes the attachment member 24 to the second side plate 22 by rotating the knob passed through the lower surface of the attachment member 24 by 90 degrees. In this way, the light source unit 1 is attached to the instrument body 2.

  Thus, the light source module 3 is directly held by the cover 4, so that it is not necessary to use the mounting member described in Patent Document 1. Therefore, the light source unit 1 and the lighting fixture of this embodiment can further reduce the cost by reducing the number of parts.

  By the way, it is preferable that the light source unit 1 is comprised so that the board | substrate 31 and the attachment member 24 may be made to contact and thermally couple | bond, in order to thermally radiate the heat | fever which LED32 generate | occur | produces.

  For example, as shown in FIG. 4, it is preferable that a convex portion 243 that protrudes downward from the lower surface of the mounting member 24 is provided, and the front end surface of the convex portion 243 is brought into contact with the back surface (upper surface) of the substrate 31.

  Alternatively, as shown in FIG. 5, the holding groove 43 may be configured to open upward except for the portion of the attached portion 44. That is, the substrate 31 is held between the holding groove 43 and the attached portion 44 (the leg portion 441 thereof), and the back surface of the substrate 31 exposed above the holding groove 43 is brought into contact with the lower surface of the attachment member 24. Is preferred.

  The light source unit 1 may be fixed to the attachment member 24 using bolts 5 and nuts 51 as shown in FIG. The cover 4 includes a flange 46 that protrudes horizontally from the upper edge in the longitudinal direction toward the outside. The flange 46 includes an insertion hole 461 through which the bolt 5 is inserted. The mounting member 24 is provided with a convex portion 243 for contacting the substrate 31. The attachment member 24 includes an insertion hole 244 that is overlapped with the insertion hole 461 of the flange 46 and into which the bolt 5 is inserted.

  The insertion hole 244 and the insertion hole 461 overlap each other in a state where the convex portion 243 of the mounting member 24 is in contact with the substrate 31. Then, the bolt 5 is inserted from below the insertion holes 244 and 461 and is tightened by the nut 51 on the upper surface of the mounting member 24. In this way, the light source unit 1 may be fixed to the mounting member 24. However, the light source unit 1 may be fixed to the mounting member 24 by screwing instead of the bolt 5 and the nut 51 and screwing.

  The power supply unit 6 is not limited to the arrangement place of this embodiment. For example, the power supply unit 6 may be attached to the lower surface of the attachment member 24 or the base plate 23.

  The attachment member 24 does not have to be attached to the second side plate 22 using a latch, and may be attached to the second side plate 22 using, for example, a bolt or a nut.

  In the attachment member 24, the reflection member may be disposed in a space generated between the adjacent light source units 1.

  The cover end 45 may be joined to the cover 4 before the substrate 31 is attached to the cover 4. Alternatively, the cover 4 and the cover end 45 may be integrally formed. However, in this case, in order to attach the substrate 31 to the holding groove 43, it is necessary to bend the cover 4 outward and attach the substrate 31 from the top of the cover.

The light source unit 1 of this embodiment includes a light source module 3 and a cover 4. The light source module 3 includes a substrate 31 and a plurality of solid state light emitting elements (LEDs 32) mounted on one surface of the substrate 31. The cover 4 includes a side wall 41 and a bottom wall 42 that transmit light emitted from a plurality of solid state light emitting devices (LEDs 32), and is formed so as to cover the light source module 3. The side wall 41 includes a holding groove 43 that holds the peripheral edge of the substrate 31 so that the plurality of solid state light emitting elements (LEDs 32) face the bottom wall 42, and one to a plurality of attached portions 44. The attached portion 44 is configured to be detachably attached to the attachment member 24.

  The lighting fixture of this embodiment includes a light source unit 1 and a fixture body 2 having a mounting member 24.

  Therefore, the light source unit 1 and the lighting fixture of this embodiment can reduce the cost by eliminating the mounting member described in Patent Document 1 and reducing the number of parts.

  In the light source unit 1 of the present embodiment, the attached portion 44 is preferably configured to be attached to one or more attachment portions (attachment holes 241) provided in the attachment member 24. The substrate 31 is preferably held by the holding portion (holding groove 43) so that the mounted portion 44 is attached to the mounting portion (mounting hole 241) so as to contact the mounting member 24.

  Therefore, the heat generated by the LED 32 can be efficiently radiated by conducting the heat to the mounting member 24 via the substrate 31.

  In addition, since the surface of the substrate 31 on which the LED 32 is mounted is covered with the cover 4 and the cover end 45, the LED 32 is protected from static electricity and dust. Furthermore, the operator does not need to touch the LED 32 at the time of constructing the lighting fixture or replacing the light source unit 1. Therefore, in the luminaire of this embodiment, since the operator can easily handle the luminaire, work efficiency during construction can be improved.

  In the present embodiment, the case where the mounting member to which the light source unit 1 is attached is configured integrally with the instrument main body 2, but the mounting member may be configured separately from the instrument main body 2. For example, the light source unit 1 may be attached to the attachment member in the conventional example described in Patent Document 1. In this case, the light fixture has the light source unit 1 attached to the fixture main body via an attachment member, and is substantially the same as the conventional example described in Patent Document 1 in appearance.

DESCRIPTION OF SYMBOLS 1 Light source unit 2 Instrument body 24 Mounting member 241 Mounting hole 3 Light source module 31 Substrate 32 LED ( solid light emitting element)
4 Cover 43 Holding groove 44 Mounted part

Claims (4)

A light source module and a cover;
The light source module includes a substrate and a plurality of solid state light emitting devices mounted on one surface of the substrate,
The cover includes a side wall and a bottom wall that transmit light emitted from the plurality of solid state light emitting devices, and is formed to cover the light source module.
The side wall includes a holding portion that holds a peripheral portion of the substrate such that a plurality of the solid state light emitting elements face the bottom wall, and one to a plurality of attached portions.
The attached portion is
Leg portions protruding from only a part of the side wall in a direction away from the bottom wall in a first direction in which the solid state light emitting element and the bottom wall face each other;
A hook portion that protrudes from a tip of the leg portion in a second direction intersecting the first direction and is hooked on an attachment member;
With
The light source unit, wherein the attached portion is configured to be detachably attached to the attachment member. The attached portion is configured to be attached to one or more attaching portions provided on the attachment member,
2. The light source unit according to claim 1, wherein the substrate is held by the holding portion so that the attached portion is in contact with the attachment member in a state where the attachment portion is attached to the attachment portion.   The holding portion has a holding groove extending in a third direction intersecting both the first direction and the second direction,
  An end of the substrate is inserted into the holding groove to hold the substrate.
  The light source unit according to claim 1 or 2, wherein   An illumination fixture comprising: the light source unit according to any one of claims 1 to 3; and a fixture main body having the attachment member.

Images