JP6267997B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire.

  DESCRIPTION OF RELATED ART Conventionally, the lighting fixture which has a socket, the light source attached to a socket, and the cover (glove, shade) which covers a light source is known (for example, refer patent document 1).

  In the lighting apparatus of Patent Document 1, a holder is fixed to the tips of a plurality of arms. A socket is fixed to the holder obliquely downward, and a spherical light source is screwed almost downward into the socket. The entire circumference of the spherical light source is covered with a cover. A socket ring (mogal ring) is fitted into the lower half of the socket (screw mogal).

  When the socket of the lighting apparatus of Patent Document 1 is, for example, a socket for an incandescent lamp, the socket is made of porcelain or heat resistant resin because it requires high heat resistance.

JP 2000-311510 A

  For example, as disclosed in Patent Document 1, in the case where the incandescent bulb is mounted on the socket, the incandescent bulb protrudes greatly from the socket, and it is difficult to reduce the size of the lighting fixture. Even if the incandescent light bulb is replaced with an LED light bulb, the LED light bulb protrudes greatly from the socket, and it is difficult to reduce the size of the lighting fixture. In particular, in the case of an LED bulb, a heat radiation part is often provided between the substantially spherical light emitting part and the base, and it is necessary to expose the heat radiation part from the socket. Difficult to do.

  Then, this invention is made | formed in view of the said subject, and it aims at providing the light source holding member and lighting fixture which can be reduced in size.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the lighting fixture disclosed in this application is
A light source unit having a light emitting element;
While holding the light source unit, a light source holding member having a screw groove formed on the outer peripheral surface;
A holding ring screwed onto the outer periphery of the light source holding member;
A glove attached to the periphery of the light source unit by screwing the holding ring onto the outer periphery of the light source holding member;
The light source unit is disposed on one end surface of the light source holding member ,
The globe has an opening;
An inner diameter of the opening is larger than an outer diameter of the light source holding member,
When attaching the globe to the lamp, the light source holding member is inserted through the opening,
The holding ring comes into contact with the globe by screwing the holding ring into the light source holding member .

In the lighting fixture disclosed in the present application,
It is preferable that one end surface of the light source holding member is a substantially flat surface.

In the lighting fixture disclosed in the present application,
A socket for attaching the light source unit;
The light source unit is attached to one end of the light source holding member by the socket,
The maximum dimension of the socket in the radial direction is preferably smaller than the diameter dimension of the thread valley in the thread groove of the light source holding member.

In the lighting fixture disclosed in the present application,
One end surface of the light source holding member preferably has a through hole.

In the lighting fixture disclosed in the present application,
The light source holding member is preferably made of metal.

In the lighting fixture disclosed in the present application,
The light source holding member is preferably provided with a flat surface on a part of the outer peripheral surface.

  According to the present invention, it is possible to reduce the size of the light source unit and the lighting fixture by suppressing the protruding amount of the light source.

The top view which shows the lighting fixture which concerns on one Embodiment of this invention. The partial cross section side view which shows a lighting fixture. The enlarged view which shows the lamp in FIG. The top view which shows the state which has arrange | positioned the power supply circuit board in the power supply accommodating part. The disassembled perspective view which shows the structure of a lamp. The perspective view which shows a light source holding member (state which has not arrange | positioned the LED module). It is a figure which shows a light source holding member, (a) is a top view, (b) is a side view.

The lighting fixture 100 which concerns on embodiment of this invention is demonstrated using FIGS. 1-7. The luminaire 100 includes an LED module 51 as a light source, and is a ceiling light directly attached to the ceiling surface C as shown in FIG. In the following description, the vertical direction of the lighting fixture 100 will be described as the vertical direction in the state where the lighting fixture 100 is installed on the ceiling surface C (the vertical direction in FIG. 2). In addition, a description will be given assuming that the direction perpendicular to the vertical direction is the radial direction. Moreover, in description of this embodiment, the state which looked at the lighting fixture 100 grade | etc., From upper direction is made into planar view. Moreover, let the state which looked at the lighting fixture 100 grade | etc., From the orthogonal | vertical direction with respect to the up-down direction be a side view. A state in which the cross-sectional shape of the lighting fixture 100 or the like is viewed is taken as a cross-sectional view.
In the present embodiment, a ceiling light is used as an example of a lighting fixture, but it is not particularly limited. For example, as a lighting fixture, in addition to a ceiling light, a chandelier, a pendant light, a downlight, a spotlight, or the like may be used.

  The lighting fixture 100 is mainly provided with the fixture main body 11, the power supply part 21, the arm 31, the lamp 61 which has the light source part 41 and the glove | globe 71 as shown in FIG. 1, FIG.

  The fixture main body 11 constitutes the main body of the lighting fixture 100. The instrument body 11 is formed using a metal material such as aluminum having high thermal conductivity. The instrument main body 11 has an attachment part 12, an arm holding part 13, and a power supply accommodating part 14 in order from above. The attachment portion 12 is a hollow substantially inverted truncated cone-shaped member having an open upper surface, and is used for attaching the lighting fixture 100 to the ceiling surface C via wiring components provided on the ceiling surface C. The arm holding part 13 is a hollow, substantially cylindrical bottomed member that is connected to the lower surface of the attachment part 12. The arm holding portion 13 is a portion that holds the plurality of arms 31 at substantially equal intervals in the circumferential direction. The arm holding part 13 has a substantially cylindrical peripheral wall part 13a and a disk-like lower plate part 13b. The outer diameter of the arm holding portion 13 is smaller than the outer diameter of the lower surface of the mounting portion 12. The peripheral wall portion 13a of the arm holding portion 13 is provided with a plurality of insertion holes 13c through which one end (base end) side of the arm 31 is inserted. The lower plate portion 13 b of the arm holding portion 13 is provided with an insertion hole 13 d for inserting the electric wire 20 extending from the power supply portion 21. A power supply accommodating portion 15 is attached to the lower portion of the arm holding portion 13. The power supply accommodating portion 15 is hollow, has a circular shape in plan view, and has a substantially inverted dome shape. The power supply accommodating part 15 is a member that accommodates a power supply part (power supply device) 21 for turning on the LED module 53 included in the light source part 41 and the like. The outer diameter of the power supply accommodating portion 15 is larger than the outer diameter of the upper surface of the mounting portion 12. The appliance body 11 is attached to the ceiling surface C via the attachment portion 12.

  The power supply unit 21 is a power supply device that supplies power to the LED module 51 included in the light source unit 41 to light the LED module 53. Specifically, the power supply unit 21 has a plurality of electronic components mounted on a power supply circuit board 22 (printed wiring board) that is processed in a substantially reverse dome-shaped power supply storage unit 14 smaller than the inside of the power supply storage unit 14. Power supply circuit (see FIG. 4). The power source unit 21 converts an alternating current supplied from an external commercial power source into a predetermined direct current, and supplies the converted current to the LED element 54 on the substrate 53. By attaching the luminaire 100 to the ceiling surface C via a predetermined wiring component, the power supply unit 21 is electrically connected to an external commercial power supply. The LED module 51 of the power supply unit 21 and the light source unit 41 is electrically connected by the electric wire 20.

As shown in FIGS. 2 and 4, the luminaire 100 has a remote control signal receiver 23 on the upper surface of the power supply housing 14. The remote control signal receiver 23 includes a receiving element 23a and a cover 23b. The receiving element 23 a is disposed in the power supply accommodating portion 14 of the instrument main body 11 and is connected to the power supply circuit board 22 by a lead wire 24. The remote control signal receiving unit 23 is arranged facing the ceiling surface C, and receives the remote control signal S reflected by the ceiling surface C as indicated by a dotted arrow shown in FIG.
In addition, what is necessary is just to provide the remote control signal receiving part 23 suitably in the arbitrary positions of the power supply accommodating part 14 of the instrument main body 11 as needed.

  The arm 31 has an elongated cylindrical shape with both ends open, and a plurality of (in this embodiment, 8 in the present embodiment) project radially from the peripheral wall portion 13a of the arm holding portion 13 of the instrument body 11 substantially in parallel to the ceiling surface C. Book). In addition, the arm 31 does not need to be parallel to the ceiling surface C, and may be partially curved or bent. As shown in FIG. 1, the arm 31 extends radially from the peripheral wall portion 13 a of the arm holding portion 13 in a plan view. The arm 31 is formed using a metal material such as aluminum having high thermal conductivity. One end (base end) of the arm 31 is inserted into the insertion hole 13 c and attached to the side surface of the arm holding portion 13 by a fastening member, and the other end (tip) of the arm 31 supports the lamp 61. The arm 31 is inserted with the electric wire 20 extending from the power supply unit 21 from one end side (base end side) to the inside, and the electric wire 20 led out from the other end side (tip end side) of the light source unit 41 included in the lamp 61. It is electrically connected to the LED module 53.

The lamp 61 is supported on the distal end side of the arm 31. As shown in FIG. 3, the lamp 61 includes a light source 41, a globe 71, a lamp base 62, a mounting leg 63, a light source holding member 81, and a holding ring 91 that can be screwed to the light source holding member 81. The light source holding member 81 may be called “screw mogul” or the like. The holding ring 91 may be called a “mogal ring” or the like.
In FIG. 5, the chain line indicated by the symbol A is the central axis of the lamp 61.

  The light source unit 41 is a part that emits light toward the irradiation surface side of the lighting fixture 100. The light source unit 41 includes an LED as an example of a light emitting element. The light source unit 41 includes an LED module 51, an LED module socket 52, a module cover 42, and the like. The light source unit 41 is disposed on one end (lower end) surface of the light source holding member 81. In the present embodiment, as the LED module 51, a COB type light emitting module having an LED (Light Emitting Diode) element 54, an anode side terminal, and a cathode side terminal on a substrate 53 processed into a flat plate shape is used. . The board | substrate 53 is contact | abutted and arrange | positioned at the light source arrangement | positioning part 82 which the light source holding member 81 has, and is attached to the light source holding member 81 by attachment members, such as LED module socket 52 and a screw | thread (refer FIG. 4). The LED module 51 is attached to the light source arrangement portion 82 of the light source holding member 81 so as to be able to conduct heat. The LED module socket 52 has a substantially square shape in plan view with a rounded corner. The LED module socket 52 has a through hole in a portion facing the light emitting portion of the LED module 51 in order to expose the light emitting portion of the LED module 51.

The maximum dimension in the radial direction of the LED module socket 52 is smaller than the diameter dimension of the thread valley in the male thread 84 of the light source holding member 81. With such a dimensional relationship, when the holding ring 91 is screwed to the light source holding member 81, it is possible to prevent the holding ring 91 from coming into contact with the LED module socket 52 and hindering the screwing. The substrate 53 is electrically connected to the power supply unit 21 by connecting the electric wire 20 to the anode side terminal and the cathode side terminal. A hemispherical module cover 42 is disposed opposite to the LED element 54 and the LED module socket 52, and the LED element 54 and the LED module socket 52 are covered with the module cover 42. The module cover 42 is formed of a translucent (for example, milky white) resin material. The module cover 42 only needs to be formed of a material having translucency. The module cover 42 covers the LED element 54 and the LED module socket 52 so that light emitted from the LED element 54 can be diffused and foreign matter such as dust is prevented from adhering to the LED element 54 and the like.
In the present embodiment, the COB type light emitting module is used as the light source. However, the type of the light source is not limited to the COB type light emitting module. For example, an LED element (surface mount type LED element), an organic EL element (OLED), or the like. Even so, it is feasible.
In addition, the substrate 53 may be attached to the light source holding member 81 (light source arrangement portion 82) via a heat conductive sheet (not shown) or heat radiation grease, thereby obtaining higher heat dissipation in the light source portion 41. be able to.

The globe 71 is a member that is attached so as to cover the periphery of the light source unit 41, and distributes light to the outside while reflecting and diffusing light from the light source unit 41. The globe 71 has, for example, an umbrella shape having an opening at the lower end surface and an opening 75 at the center of the upper end surface, and is formed in a shape that increases in diameter as it goes downward. The inner diameter of the opening 75 is larger than the outer diameter of the light source holding member 81 so that the light source holding member 81 can be inserted. The globe 71 is formed of a resin material having translucency. At the upper end of the globe 71, there is a locking portion 72 which is a cylindrical shape protruding upward and can be locked to the stepped portion 62 a of the lamp base 62. In addition, the globe 71 has a stepped flange contact portion 73 extending radially outward, with which the flange 93 of the holding ring 91 contacts. The globe 71 is positioned in the lamp 61 by inserting the light source holding member 81 having the light source portion 41 into the opening 75 and locking the locking portion 72 to the stepped portion 62 a of the lamp base 62. . Further, when the holding ring 91 is screwed to the outer periphery of the light source holding member 81 with the globe 71 positioned as described above, the flange 93 of the holding ring 91 comes into contact with the flange contact portion 73 of the globe 71, so that the globe 71 is attached to the lamp 61 (lamp base 62). That is, the globe 71 is attached to the lamp 61 by the flange contact portion 73 being sandwiched between the lamp base 62 and the holding ring 91. The globe 71 has a structure that can be attached to and detached from the lamp 61 (lamp base 62) for cleaning the globe 71, replacing parts, and the like by the holding ring 91.
In addition, although the glove | globe 71 of this embodiment is set as the structure which covers the circumference | surroundings of the light source part 41, the shape is not specifically limited. For example, the shape which closed the lower end side of the globe may be sufficient. Moreover, what is necessary is just to determine a part other than the upper end part of the globe 71, ie, a side surface shape, surface processing, etc. according to the design effect and the illumination effect. The globe 71 may have a light shielding property.

  The lamp base 62 is a bottomed substantially cylindrical member having one end (lower end) opened. The distal end portion of the arm 31 is attached to the side surface of the lamp base 62 by a fastening member. A lower end portion of the lamp base 62 is provided with a stepped portion 62 a for locking the locking portion 72 of the globe 71 that protrudes radially outward in a substantially L shape in cross section. One end (upper end) of the attachment leg 63 is attached to the lamp base 62 by a screw member on the inner bottom.

  The mounting leg portion 63 is a member having a substantially rectangular shape in cross section. The lamp base 62 is attached to one end (upper end) of the attachment leg 63 by a screw member. One end (upper end) of the light source holding member 81 is attached to the other end (lower end) of the mounting leg 63 by a screw member.

  The light source holding member 81 holds the light source unit 41 and has a thread groove formed on the outer peripheral surface. As shown in FIGS. 6 and 7, the light source holding member 81 is a substantially cylindrical member whose upper end is attached to the attachment portion 63 a of the attachment leg portion 63. The light source holding member 81 is formed using a metal material such as aluminum having high thermal conductivity. One end (lower end) of the light source holding member 81 has a light source arrangement portion 82 for arranging the LED module 51. That is, the light source holding member 81 includes a cylindrical main body, a male screw 84 that is a screw groove formed in a spiral shape on the outer peripheral cylindrical surface of the main body, and a light source arrangement portion 82.

  The light source arrangement part 82 is substantially flat. The light source arrangement part 82 can arrange the light source part 41 on the surface thereof. By making the light source arrangement portion 82 flat, the contact area with the back surface of the LED module 51 is increased, and heat generated from the LED module 51 is easily transmitted to the light source holding member 81. The light source arrangement portion 82 is provided with, for example, two through holes 83 for wiring an electric wire (not shown) connected to the electric wire 20 from the inside of the light source holding member 81 to the outside (see FIG. 6). A male screw 84 that is a screw groove into which the holding ring 91 can be screwed is formed on the outer peripheral surface of the light source holding member 81.

  The light source holding member 81 is provided with two flat flat surfaces 85 along the central axis A direction (vertical direction in FIG. 5) of the light source holding member 81 where a thread of the male screw 84 is not formed on a part of the outer peripheral surface. It has been. The two flat surfaces 85 are disposed so as to face the radial direction of the light source holding member 81.

  The holding ring 91 is a member that supports the globe 71 by screwing onto the outer periphery of the light source holding member 81. The retaining ring 91 is formed using a metal material such as aluminum having high thermal conductivity. The holding ring 91 includes a female screw 92 that is a thread groove that can be screwed into a male screw 84 formed on the outer peripheral surface of the light source holding member 81, and a flange 93 that projects radially outward from the upper end surface of the female screw 92. I have. When the holding ring 91 is screwed onto the light source holding member 81 from below with the locking portion 72 of the globe 71 locked to the stepped portion 62 a of the lamp base 62, the flange 93 of the holding ring 91 is brought into contact with the flange 71 of the globe 71. The contact portion 73 is pressed upward, the globe 71 is supported from below, and the upper end surface of the flange contact portion 73 is brought into close contact with the lower end of the lamp base portion 62.

  In the lighting fixture 100 of this embodiment described above, the LED module 51 is disposed at one end (lower end) of the light source holding member 81. Thereby, only the LED module 51, the LED module socket 52, and the module cover 42 protrude from one end of the light source holding member 81, and the light source unit 41 can be downsized as compared with a configuration including a light bulb. In the present embodiment, the lamp 61 can be reduced in size (reduced in height) by reducing the size of the light source unit 41 (reduced in height). In addition, the light source holding member 81 functions as a heat sink that efficiently dissipates heat generated from the LED module 51, and the globe 71 can be attached to the lamp 11 by attaching the holding ring 92 to the light source holding member 81. That is, the light source holding member 81 has an original function as a light source holding member for attaching the globe 71 and a heat sink function for radiating heat from the LED module 51. Further, since the light source holding member 81 is provided with rib-like irregularities (screw grooves) by forming the male screw 84 on the outer peripheral surface, the surface area is increased and the heat dissipation is increased.

  Further, since the holding ring 91 is made of a metal material, even if the holding ring 91 is screwed into the light source holding member 81, the heat dissipation of the light source holding member 81 can be improved. Further, one end (lower end) of the light source holding member 81 is substantially flat. Thereby, the contact area with the board | substrate 53 of the LED module 51 becomes large, and the heat which generate | occur | produces from the LED module 51 can be more efficiently transmitted to the light source holding member 81 which functions as a heat sink.

  Further, the maximum dimension in the radial direction of the LED module socket 52 is smaller than the diameter dimension of the thread valley in the male screw 84 of the light source holding member 81. Thereby, the holding ring 91 can be screwed onto the outer peripheral surface of the light source holding member 81.

  The light source holding member 81 is provided with a through hole 83 for wiring. Thereby, the wiring connected to the electric wire 20 can be directly extended from the light source holding member 81 to the light source arrangement portion 82. In addition, it is preferable that the through-hole 83 is formed in parts other than the part in which the LED module 51 is arrange | positioned in the light source arrangement | positioning part 82. FIG. As a result, the wiring can be more reliably routed from the light source holding member 81 toward the light source arrangement portion 82, and the contact area between the LED module 51 and the light source arrangement portion 82 is not reduced, so that the heat dissipation of the LED module 51 is achieved. It does not deteriorate the sex.

  Moreover, in this embodiment, since the light source holding member 81 is formed of a metal material instead of a conventional porcelain or resin, heat dissipation is improved. The light source holding member 81 is not necessarily formed of metal as long as the temperature characteristics required for the LED module 51 are obtained, and may be formed of porcelain, resin, or the like.

  In the present embodiment, the flat surface 85 is provided on the outer peripheral surface of the light source holding member 81. Thereby, generation | occurrence | production of a part line can be reduced at the time of shaping | molding of the light source holding member 81. FIG. That is, when the light source holding member 81 is manufactured by mold forming, in the case of a two-part mold that is released in the radial direction of the light source holding member 81, the portion of the light source holding member 81 that faces the joint between the molds Part lines (microprojections) may occur. More specifically, a part line may occur on the male screw 84 on the outer peripheral cylindrical surface of the light source holding member 81. When a part line is generated on the male screw 84, the outer diameter of the part is increased, and the holding ring 91 cannot be smoothly screwed to the light source holding member 81. As in the present embodiment, by forming the flat surface 85 in the part corresponding to the part line, an increase in the outer diameter due to the part line can be prevented, so the holding ring 91 can be screwed smoothly. The light source holding member 81 can be realized.

Further, in the present embodiment, the instrument main body 11 having the power source unit 21 and the plurality of lamps 61 having the light source unit 41 are arranged apart from each other by the arm 31. That is, the power supply unit 21 that is a heat generation source and the light source unit 41 (LED element 51) that is also a heat generation source are arranged apart from each other by the arm 31. Thereby, thermal interference can be suppressed between the power supply unit 21 and the light source unit 41 (LED element 51). That is, since the power supply unit 21 and the light source unit 41 (LED element 51) are mounted apart by the arm 31, it is easy to separate the heat generated from each of the power supply unit 51 and the light source unit 41 (LED element 51), It is difficult to conduct heat generated from the light source unit 41 (LED element 51) to the power source unit 21 side. Further, it is difficult to conduct the heat generated by the power supply unit 21 to the light source unit 41.
In addition, the lighting fixture provided with the fixture main body 11 provided with the power supply part 21, the light source part 41 (LED element 51), and the arm 31 which connects and separates the fixture main body 11 and the light source part 41 of this embodiment. One of the features. If it is a lighting fixture which has such a structure, the shape of details, such as the light source holding member 81, will not be limited to the structure currently disclosed by this embodiment. The light source part 41 should just be a light emitting module containing LED elements, such as a COB module and a SMD module. The shape, length, position, and material of the arm 31 are arbitrary as long as at least the instrument body 11 and the light source unit 41 can be separated and connected. Since the arm 31 has a longitudinal dimension as long as possible, the power source unit 21 and the light source unit 41 can be greatly separated to reduce thermal interference, and the surface area of the arm 31 can be increased. It is preferable because the heat generated can be efficiently dissipated. The arm 31 is not limited to a linear shape, and may have a curved or bent shape. By making the arm 31 in such a shape, the entire length of the arm 31 can be increased without increasing the size of the entire lighting fixture, and thus the heat transmitted to the arm 31 can be efficiently dissipated, which is preferable. The arm 31 is preferably formed of a material having high thermal conductivity such as metal in consideration of heat dissipation of the power source unit 21 and the light source unit 41. However, the arm 31 is sufficient for each of the power source unit 21 and the light source unit 41. If heat radiation is possible, there is no problem even if it is formed of a material having a relatively low thermal conductivity such as a resin. The arm 31 protrudes in the horizontal direction from the instrument main body 11 in the present embodiment, but it may protrude in an obliquely downward direction as well as the horizontal direction. Moreover, although the light source part 41 is provided with two or more by illustration, what is necessary is just to provide at least one. In the case where a plurality of light source units 41 are provided, it is preferable to arrange them at regular intervals around the instrument body 11 in terms of weight balance, but it is not always necessary to have regular intervals.

41 Light source part 51 LED module 71 Globe 81 Light source holding member 82 Light source arrangement part 84 Male screw (screw groove)
91 retaining ring

Claims (6)

A light source unit having a light emitting element;
While holding the light source unit, a light source holding member having a screw groove formed on the outer peripheral surface;
A holding ring screwed onto the outer periphery of the light source holding member;
A glove attached to the periphery of the light source unit by screwing the holding ring onto the outer periphery of the light source holding member;
The light source unit is disposed on one end surface of the light source holding member ,
The globe has an opening;
An inner diameter of the opening is larger than an outer diameter of the light source holding member,
When attaching the globe to the lamp, the light source holding member is inserted through the opening,
A lighting fixture in which the holding ring comes into contact with the globe by screwing the holding ring into the light source holding member . The lighting fixture according to claim 1,
One end surface of the light source holding member is a luminaire that is substantially flat. The lighting apparatus according to claim 1 or 2,
A socket for attaching the light source unit;
The light source unit is attached to one end of the light source holding member by the socket,
The maximum dimension of the said socket in the radial direction is a lighting fixture which is smaller than the diameter dimension of the thread valley in the thread groove of the said light source holding member. It is a lighting fixture as described in any one of Claims 1-3,
One end face of the light source holding member has a through hole. It is a lighting fixture as described in any one of Claims 1-4, Comprising:
The light source holding member is a lighting fixture made of metal. It is a lighting fixture as described in any one of Claims 1-5, Comprising:
The light source holding member is a lighting fixture in which a flat surface is provided on a part of an outer peripheral surface.

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