JP2021118088A - Lighting device - Google Patents

Abstract

An object of the present invention is to provide a lighting device that can be made lighter than a connecting member formed by die-casting aluminum. [Solution] A lighting device X includes a light source base plate 2 on which a light source unit is attached to the front surface, a power source base plate 4 on which a power source unit is attached to the back surface, and a first The pair of connecting members 5 are provided with a pair of connecting members 5 that connect both ends in the front and back directions, and an arm member 6 that is attached to the pair of connecting members 5 and is used for attachment to construction materials. It is configured. [Selection diagram] Figure 1

Description

The present invention relates to a lighting device including an arm material attached to a construction material.

As a lighting device, a light source base plate on which a light source unit is mounted on the front surface, a power supply base plate on which a power supply unit is mounted on the back surface, and both ends of the light source base plate and the power supply base plate in the first direction are connected in the front and back directions. It has been proposed that the connecting member is provided with a pair of connecting members to be formed, and the fixing portion, the pair of mounting portions, and the bearing portion are integrally formed by aluminum die casting (for example, Patent Document 1). ..

Japanese Unexamined Patent Publication No. 2016-10018

In the above lighting device, since the connecting member is molded by aluminum die casting, the weight is heavy. If the weight is heavy, the mechanical properties required for the arm material, the connecting member, and the like are increased, which leads to an increase in cost and the like.
An object of the present invention is to provide a lighting device that can be made lighter than a connecting member molded by aluminum die casting.

The lighting device according to the present invention includes a light source base plate on which a light source unit is mounted on the front surface, a power supply base plate on which a power supply unit is mounted on the back surface, and both ends of the light source base plate and the power supply base plate in the first direction. A pair of connecting members for connecting the portions in the front-back direction and an arm material attached to the pair of connecting members and attached to the construction material are provided, and the pair of connecting members is made of a metal plate.

According to the above configuration, since the connecting member is made of metal, the weight can be reduced as compared with the device using the connecting member molded by aluminum die casting.

It is a perspective view of the lighting apparatus which concerns on embodiment, (a) is a view seen from the front side, (b) is a view seen from the back side. It is a perspective view which looked at the disassembled state of a lighting device from the front side. It is a perspective view which looked at the disassembled state of a lighting device from the back side. It is a perspective view which looked at the state which removed some fins and a light source cover from a light source base plate, and looked at from the front side. It is a perspective view which looked at the state which removed some fins and a light source cover from a light source base plate, and looked at from the back side. It is a perspective view which looked at the state which removed the power source cover, the insulation sheet and the terminal unit from the power source base plate, and looked at from the back side. It is a perspective view which looked at the state which removed the power source cover, the insulation sheet and the terminal unit from the power source base plate, and looked at from the front side. (A) is an enlarged perspective view of the periphery of the connecting member as viewed from the back side, and (b) is an enlarged perspective view of the periphery of the connecting member with the screws removed from the back side. (A) is an enlarged perspective view of the periphery of the front end of the connecting member as viewed from the front side, (b) is an enlarged cross-sectional view of the connecting member at an intermediate position in the second direction, and (c) is a screw of the connecting member. It is an enlarged cross section at the position of. It is an enlarged cross-sectional view of the state cut at one end side of the first direction seen from the inside side of the first direction, (a) is a perspective view seen from the back side, and (b) is a perspective view seen from the front side. Is. It is a figure explaining the position of the through hole for an electric wire of a power source base plate, and the electric wire general through hole of a light source base plate, and is the figure seen from the 1st direction.

<Overview>
The lighting device according to one aspect of the embodiment is the first of a light source base plate on which a light source unit is mounted on the front surface, a power supply base plate on which a power supply unit is mounted on the back surface, and the light source base plate and the power supply base plate. It includes a pair of connecting members that connect both ends in the front and back directions, and an arm material that is attached to the pair of connecting members and is attached to a construction material. The pair of connecting members is made of a metal plate. ing.
In the lighting device according to another aspect of the embodiment, the power supply base plate has first bent portions that bend to the front side at both ends in the first direction, and the first bent portions face the connecting member. As a result, the power supply base plate and the connecting member can be firmly connected.
In the lighting device according to another aspect of the embodiment, the first bent portion faces a surface of the connecting member located outside the first direction, and the power supply base plate is formed at both ends of the first direction. It has a second bent portion that bends on the front side, and the connecting member is fixed by a fixture in a state of being arranged between the first bent portion and the second bent portion. As a result, the power supply base plate and the connecting member can be firmly connected. It also becomes strong against rocking in the first direction.

In the lighting device according to another aspect of the embodiment, the connecting member has a first through hole and an arc-shaped second through hole centered on the first through hole in a facing portion facing the arm material. The arm material is fixed to the facing portion by a first fixture through which the first through hole is inserted and a second fixture through which the second through hole is inserted. As a result, the arm material and the connecting member can be firmly connected, and the arm member and the connecting member can be firmly connected to each other even when swinging in the first direction.
In the lighting device according to another aspect of the embodiment, the first through hole has a circular shape, and the arm material has a fitting cylinder portion that fits into the first through hole. As a result, the arm material can be easily aligned with the connecting member. Further, the arm material can be smoothly rotated with respect to the connecting member.
In the lighting device according to another aspect of the embodiment, the arm material extends from both ends of the construction side fixing portion fixed to the construction material and both ends of the construction side fixing portion in the first direction to the front side to form the connecting member. The building-side fixing portion and the connecting-side fixing portion have bent portions at both ends in the second direction orthogonal to the first direction, and the building-side fixing portion is fixed to the building side. At both end portions in the first direction of the portion, the bent portion of the construction side fixing portion and the bent portion of the connecting side fixing portion overlap. Thereby, the rigidity of the arm material can be improved.
In the lighting device according to another aspect of the embodiment, the light source unit and the power supply unit are electrically connected by an electric wire, and when the connecting member is viewed from the first direction, the light source base plate penetrates the light source base plate for the electric wire. The hole is the front end of the connecting member and is located between the ends in the direction orthogonal to the first direction and the front and back directions, and the through hole for the electric wire of the power supply base plate is the back end of the connecting member. The portion is located between the ends in the direction orthogonal to the first direction and the front and back directions. As a result, the electric wire becomes a shadow of the connecting member, and the electric wire can be protected from the intrusion of foreign matter or the like from the outside of the lighting device.

<Embodiment>
1. 1. As shown in FIGS. 1 to 3, the overall lighting device X includes a light source base plate 2 on which the light source unit 1 is mounted on the front surface, a power supply base plate 4 on which the power supply unit 3 is mounted on the back surface, and a light source base plate 2. A pair of connecting members 5 for connecting both ends of the power supply base plate 4 in the first direction in the front-back direction, and an arm member 6 attached to the pair of connecting members 5 and attached to the construction material are provided. The lighting device X here includes a heat radiating unit 7 on the back surface of the light source base plate 2. The direction orthogonal to the first direction and the front and back directions is defined as the second direction.
Hereinafter, each configuration will be described.

2. Each configuration (1) Light source unit This will be described mainly with reference to FIGS. 4 and 5.
The light source unit 1 has, for example, a light source module 10 and a light source cover 11 that covers the light source module 10 from the front side. The light source module 10 and the light source cover 11 are mounted on the light source base plate 2.
As shown in FIG. 4, the light source module 10 includes, for example, a rectangular light source substrate 13 long in the first direction and a plurality of LED elements 14 mounted on the light source substrate 13. The plurality of LED elements 14 are arranged in a rectangular matrix in two regions of the light source substrate 13.
The light source module 10 is fixed to the flat portion 20 of the light source base plate 2 by a screw 15 which is an example of a fixture for inserting a through hole (not shown) of the light source substrate 13 from the front side.

The light source cover 11 includes a covering portion 111 that covers the light source module 10 from the front side, an extending portion 112 that extends outward from the peripheral edge of the covering portion 111 along the flat portion 20 of the light source base plate 2, and an edge edge of the extending portion 112. It has a light source cover bending portion 113 that bends from the back side to the back side.
The covering portion 111 has a rectangular thin plate shape that is long in the first direction.
The outer peripheral edge of the stretched portion 112 has a rectangular shape that substantially coincides with the outer peripheral edge of the light source base plate 2. The light source cover 11 has a through hole 112b (see FIG. 5) at a corner of the stretched portion 112. A screw 16 which is an example of a fixture is inserted into the through hole 112b and screwed into the screw hole 201 of the flat portion 20. As shown in FIG. 9, the stretched portion 112 has a bulging portion 112a that bulges to the front side corresponding to the front contact portion 524 of the connecting member 5.
A plurality of light source cover bending portions 113 are provided at intervals along the peripheral edge of the extending portion 112. The light source cover bent portion 113 has a mounting function for mounting the light source cover 11 on the light source base plate 2. The light source cover bent portion 113 has a convex portion 113a protruding inward in the first direction on the bending tip side, and the convex portion 113a is a through hole of the bent portion 21 of the light source base plate 2 as shown in FIG. Fits into 210. The light source cover bent portion 113 is configured to be elastically deformable in the projecting direction of the convex portion 113a, facilitating mounting on the light source base plate 2.

(2) Heat dissipation unit This will be described mainly with reference to FIGS. 4 and 5.
The heat radiating unit 7 is composed of a plurality of fins 71, and the plurality of fins 71 are mounted on the back surface of the flat portion 20 of the light source base plate 2.
The fin 71 is formed by bending a thin metal plate into, for example, a “U” shape, and has a fixing portion 710 and a pair of heat radiating portions 711. As the metal plate, for example, an aluminum plate having a thickness of 0.2 to 0.5 mm can be used. The fins 71 are provided so that the main surface of the heat radiating portion 711 is parallel to, for example, the first direction.
The fin 71 has a fin fitting portion 712 that fits with the light source base fitting portion 202 of the light source base plate 2 in the fixing portion 710. Here, the light source base fitting portion 202 is a convex portion protruding to the back side, and the fin fitting portion 712 is a through hole. The fixing portion 710 is fixed by spot welding, for example, in a state where the light source base fitting portion 202 and the fin fitting portion 712 are fitted.
The heat radiating portion 711 has a long rectangular shape in the first direction, and has one or a plurality of reinforcing ridged portions 711a along the first direction. As a result, the rigidity of the surface of the fin 71 is increased, so that a thin metal plate (for example, 0.2 to 0.5 mm) can be used as the fin 71.
The heat radiating portion 711 has a folded portion 711b folded back from three edge edges excluding the edge connected to the fixed portion 710. As a result, the rigidity of the heat radiating portion 711 is increased, so that a thin metal plate (for example, 0.2 to 0.5 mm) can be used as the fin 71. The folded portion 711b here is folded back to the side opposite to the side where the other heat radiating portion 711 facing each other exists in the same fin 71, but may be folded back to the side where the heat radiating portion 711 exists. It may be folded back on both sides.

(3) Light Source Base Plate This will be described mainly with reference to FIGS. 4 and 5.
The light source base plate 2 has a flat portion 20 having a long rectangular shape in the first direction, and bent portions 21 and 22 that bend from the edge of the flat portion 20 to the back side. A light source module 10 and a light source cover 11 are mounted on the front surface of the flat portion 20, and a heat radiating unit 7 is mounted on the back surface of the flat portion 20. A light source cover 11 is attached to the bent portion 21 orthogonal to the first direction.
The flat portion 20 includes a screw hole 204 for fixing the light source module 10, a screw hole 201 for fixing the light source cover 11, and a light source base fitting portion 202 for fitting with the fin fitting portion 712 of the fin 71. It has a through hole 203 or the like for an electric wire (not shown) that electrically connects the light source unit 1 and the power supply unit 3.

Here, since the bent portion 21 orthogonal to the first direction is provided at the edge on the short side side of the flat portion 20, the bent portion 21 is set as the short bent portion 21, and the bent portion 22 parallel to the first direction is the flat portion. Since it is provided at the end edge on the long side side of 20, the long bent portion 22 is used. When it is not necessary to distinguish between the short bent portion 21 and the long bent portion 22, the bent portions 21 and 22 are used.
The bent portions 21 and 22 have a through hole 210 for engaging the convex portion 113a of the light source cover bent portion 113 of the light source cover 11 (see FIG. 10).
As shown in FIGS. 4 and 5, the short bent portion 21 has an intermediate portion in the second direction overhanging to the back side, and has a contact portion 211 in contact with the connecting member 5 on the center side of the overhanging portion. The contact portion 211 is a light source base contact portion 211 in order to distinguish it from other contact portions described later. As a result, the contact area can be increased.
As shown in FIG. 1, the light source base plate 2 has a fixing portion for fixing the connecting member 5 to the short bending portion 21 in a state where the light source base contact portion 211 is in contact with the connecting member 5. Here, screws 29 are used for fixing, and the fixing portion is composed of screw holes 212.
As shown in FIG. 10, the short bent portion 21 has a through hole 213 for locking the locking portion 523 of the connecting member 5 so as to straddle the end portion of the flat portion 20 in the first direction. The through hole 213 is provided at substantially the center of the short bent portion 21 in the second direction. As a result, the design can be enhanced. Moreover, the weight balance in the second direction can be improved.

(4) Power supply unit This will be described mainly with reference to FIG.
The power supply unit 3 includes at least a power supply circuit 30 arranged on the power supply base plate 4 and a power supply cover 31 that covers the power supply circuit 30. Here, since the power supply base plate 4 and the power supply cover 31 are made of a metal plate, the power supply unit 3 includes an insulating sheet 32 for ensuring the insulation of the power supply circuit 30. The power supply unit 3 includes a terminal unit 33 for connecting to a commercial power supply. The power supply unit 3 includes a wireless communication unit 34 for wireless communication with an external controller.
If it is not necessary to perform wireless communication, the wireless communication unit 34 may not be provided, and if the insulation of the power supply circuit 30 can be ensured, the insulating sheet 32 may not be provided.

The power supply circuit 30 is composed of a power supply board 301 and a plurality of electronic components 303, and is provided on the back side of the power supply base plate 4 so as to be separated from each other. The power supply circuit 30 generates lighting power from a commercial power source, and adjusts lighting power according to an instruction from the wireless communication unit 34.
The plurality of electronic components 303 are described as one block in FIGS. 6 and 7. The power supply unit 3 has a connector 305 on the power supply board 301 that connects to an electric wire connected to the terminal unit 33. The power supply board 301 is mounted on the power supply base plate 4 by using a screw 309 for inserting the spacer 307, which will be described later.
In the insulating sheet 32, a sheet body 320 made of an insulating resin material is bent into a tubular shape, and a power supply circuit 30 is arranged inside the sheet body 320. The insulating sheet 32 includes a through hole 321 for a spacer 307 for arranging the power supply board 301 separately from the power supply base plate 4, a through hole 323 for an electric wire connecting the connector 305 and the terminal unit 33, and a power supply circuit. The seat body 320 has a chipped portion 325 for an electric wire (including a signal and a power supply) that electrically connects the 30 and the wireless communication unit 34.

The power supply cover 31 has a box-shaped cover main body 310 whose surface is open, and a power supply cover bent portion 311 that bends outward (for example, outward in the second direction) from the open end edge of the cover main body 310. The power supply cover 31 is formed by, for example, bending an aluminum plate having a thickness of 0.2 to 0.5 mm.
The cover main body 310 has a top wall portion 310a that is long in the first direction, and side wall portions 310b and 310c that are erected on the front side from the peripheral edge of the top wall portion 310a.
The cover body 310 has a reinforcing ridge portion 310d at least on the top wall portion 310a. Here, the top wall portion 310a and the side wall portion 310c along the first direction have a ridge portion 310d. As a result, the rigidity of the surface of the power supply cover 31 is increased, so that a thin metal plate (for example, 0.2 to 0.5 mm) can be used as the power supply cover 31.
The side wall portion 310b may also have a ridge portion. The ridge portions 310d extend along the first direction, and the top wall portion 310a has a plurality of ridge portions 310d in the second direction. Although the ridge portion 310d protrudes to the outside of the cover main body 310, it may protrude inward or to both inside and outside. Further, the ridge portion may be extended in the second direction. As a result, it is possible to contribute to further increasing the rigidity of the power supply cover 31 as compared with the case where the ridge portion 310d is provided only on the top wall portion 310a.

One side wall portion 310c provided on the edge corresponding to the long side of the top wall portion 310a has a through hole 310e for attaching the terminal block 331 to the terminal block mounting member 333 in the power supply cover 31 in the assembled state. It has a through hole 310f for fixing the power supply cover 31 to the terminal block mounting member 333, a through hole 310h for an electric wire connecting the connector 305 and the terminal block 331, and the like.
A screw 319 is used to fix the power supply cover 31 to the terminal block mounting member 333, and the screw 319 is screwed into the screw hole 333a of the terminal block mounting member 333. The side wall portion 310c is provided with a chipped portion 310g for the wireless communication unit 34.
The cover main body 310 has a folded-back portion 310j that is folded back from the front end edges of the side wall portions 310b and 310c. This can contribute to increasing the rigidity of the power supply cover 31. The folded portion 310j may be folded inward, may be folded outward, or may be folded both inside and outside.
The cover main body 310 has a folded-back portion 310k folded back from the edge forming the chipped portion 310 g of one side wall portion 310c. This can contribute to increasing the rigidity of the power supply cover 31. The folded portion 310k may be folded inward, may be folded outward, or may be folded both inside and outside.
The power cover bent portions 311 are provided on both end sides of one side wall portion 310c in the first direction. A through hole 311a is provided in the bent portion 311 of the power supply cover, and a screw 318 for inserting the through hole 311a is screwed into the screw hole 401 of the flat portion 40 of the power supply base plate 4.

The terminal unit 33 includes a terminal block 331. The terminal block 331 is attached to a terminal block mounting member 333 provided at a portion of the power supply base plate 4 located in the power supply cover 31. To attach the terminal block 331, the fixing pin 331a and the engaging claw 331b of the terminal block 331 pass through the through holes 310e and 310f of the power supply cover 31 and enter the through holes 333b and 333c of the terminal block mounting member 333. Fit. The terminal block mounting member 333 has a "U" -shaped cross section and is long in the front-back direction.
The terminal unit 33 has a terminal block cover 332 that covers the terminal block 331 fixed to the terminal block mounting member 333. The terminal block cover 332 has a box shape in which the side facing the side wall portion 310c of the power supply cover 31 and the front side are open, and an opening for an electric wire (here, a through hole 332a) is provided on an end surface orthogonal to the first direction. It is provided.

The wireless communication unit 34 is supported by the power supply cover 31 or the like by attaching the power supply cover 31 to the power supply base plate 4 in a state of being fitted to the chipped portion 310 g of the power supply cover 31. The wireless communication units 34 are arranged at intervals in the first direction with respect to the terminal unit 33. The wireless communication unit 34 receives a lighting signal from a controller (not shown) and outputs a lighting condition to the power supply circuit 30, or receives a received signal when a plurality of lighting devices X are controlled by one controller. A wireless module for determining whether or not the device is related is housed in the communication case 341.

(5) Power supply base plate This will be described mainly with reference to FIGS. 6 and 7.
The power supply base plate 4 has a flat portion 40 having a long rectangular shape in the first direction, and bent portions 41 and 42 that bend from the edge of the flat portion 20 to the back side. Here, since the bent portion 41 orthogonal to the first direction is provided at the edge on the short side side of the flat portion 400, the bent portion 41 is set as the short bent portion 41, and the bent portion 42 parallel to the first direction is the flat portion. Since it is provided at the end edge on the long side side of 40, it is referred to as a long bent portion 42. When it is not necessary to distinguish between the short bent portion 41 and the long bent portion 42, the bent portions 41 and 42 are used.

The flat portion 40 has substantially the same shape and size as the flat portion 20 of the light source base plate 2, and is connected by the connecting member 5 in a state of facing the flat portion 20 on the front and back sides. A power supply circuit 30 and the like are mounted on the back surface of the flat portion 40. The flat portion 40 is provided with a spacer 307 for supporting the power supply circuit 30 at a distance. As the spacer 307, for example, a press-fit nut (bob spacer) or the like can be used. The spacer may be formed of a separate tubular body that is not integrated with the power supply base plate 4.
The flat portion 40 is for screw holes 403 (see FIG. 7) for screws 309 for fixing the power supply circuit 30 (power supply board 301) and for screws 339 for fixing the terminal block mounting member 333 for mounting the terminal unit 33. It has a through hole 402 (see FIG. 7), a screw hole 401 for a screw 318 for fixing the power supply cover 31, and a through hole for an electric wire that electrically connects the power supply circuit 30 and the light source module 10. A cable bush 35 is inserted into the through hole for the electric wire.
As shown in FIG. 7, the flat portion 40 has one or a plurality of ridge portions 405. Here, the ridge portion 405 extends along the first direction. The flat portion 40 has one ridge portion 405 at substantially the center in the second direction. As a result, the flat portion 40 is reinforced. The ridge portion 405 protrudes to the front side, but may protrude to the back side, or if there are a plurality of ridge portions 405, they may protrude to both sides of the front and back sides. The ridge portion 405 may be stretched along the second direction.

The power supply base plate 4 has a chipped portion 44 for the arm material 6 in the flat portion 40. The chipped portions 44 are both ends of the flat portion 40 in the first direction and are provided substantially in the center of the second direction. The power supply base plate 4 has an upright portion 45 that stands on the back side of the flat portion 40 facing the chipped portion 44 by utilizing the chipped portion 44. The surface of the upright portion 45 opposite to the chipped portion 44 faces or abuts on the outer surface of the side wall portion 310b of the power supply cover 31. As a result, it is possible to regulate the movement of the power supply cover 31 in the first direction.

As shown in FIGS. 6 and 7, the short bent portion 41 has an intermediate portion in the second direction overhanging to the front side, and the overhanging portion has a contact portion 410 that comes into contact with the connecting member 5. The contact portion 410 corresponds to an example of the first bent portion of the present invention. The contact portion 410 is a power supply base contact portion for convenience in order to distinguish it from other contact portions and the like. The power base contact portion 410 is located on both sides in the second direction with respect to the chipped portion 44. As a result, the design can be enhanced. Moreover, the weight balance in the second direction can be improved. The power supply base contact portion 410 contacts the outer surface of the power supply side contact portion 530 of the connecting member 5. The outer surface is a surface that is opposite to the side on which the pair of connecting members 5 face each other and is located outside in the first direction.
The power supply base plate 4 has a fixing portion for fixing the connecting member 5 in the power supply base contact portion 410 in a state where the connecting member 5 is in contact with the power supply base contact portion 410. Here, a screw 49, which is an example of a fixture, is used for fixing, and the fixing portion is composed of a through hole 410a or a screw hole through which the screw 49 is inserted.

As shown in FIG. 7, the power supply base plate 4 has bent portions 46 that bend to the front side on both sides in the second direction with respect to the chipped portion 44. The bent portion 46 corresponds to an example of the second bent portion of the present invention. The bent portion 46 bends to the front side with respect to the chipped portion 44 with the first direction as an axis. The bent portion 46 is formed by bending the inner portion of the "U" -shaped groove, and the inner portion of the "U" -shaped groove remains in the flat portion 40 as an opening 46a. The bent portions 46 are formed at intervals in the first direction with respect to the short bent portions 41. The connecting member 5 is fixed by the screw 49 in a state where the back end portion of the connecting member 5 is inserted (arranged) between the bent portion 46 and the short bent portion 41 (power supply base contact portion 410). As a result, the back end portions of the connecting member 5 are supported (contacted) by the power supply base plates 4 from both sides in the first direction, and rattling in the first direction can be reduced.

(6) Connecting member FIGS. 2 and 3 will be mainly used for explanation, and FIGS. 8 to 10 will be used when explaining the connection state and the like.
The connecting member 5 is made of, for example, a metal plate. As the metal plate, for example, an aluminum plate, an iron plate, a stainless plate, or the like can be used. An aluminum plate is preferable from the viewpoint of weight reduction.
As shown in FIGS. 2 and 3, the connecting member 5 has a main body portion 50 and a bent portion 51 of the main body portion 50 that bends inward in the first direction from both end edges in the second direction. The connecting member 5 includes a light source side connecting portion 52 connected to the light source base plate 2 at the front end portion of the main body portion 50, and a power supply side connecting portion 53 connected to the power supply base plate 4 at the back side end portion of the main body portion 50. Has. Further, the connecting member 5 has an arm fixing portion 54 to which the arm member 6 is fixed on the back side end portion side of the main body portion 50.

(6-1) Main body The main body 50 has a larger dimension in the second direction on the back side than on the front side. As a result, the power supply side connecting portion 53 and the arm fixing portion 54 can be compactly provided at the back side end portion of the connecting member 5.
When viewed from the first direction, the main body 50 has a trapezoidal shape lacking the apex side of an isosceles triangle having vertices on the front side. This improves the balance in the second direction.

(6-2) The light source side connecting portion 52 includes at least a contact portion 520 that abuts on the short bent portion 21 of the light source base plate 2 and a fixed portion that is formed on the contact portion 520 and fixes the light source base plate 2. Has. The contact portion 520 is referred to as a "light source side contact portion" for convenience in order to distinguish it from other contact portions.
Here, as shown in FIG. 8, the light source side contact portion 520 contacts the outer surface of the light source base contact portion 211 (see FIG. 10) of the short bending portion 21. The light source side contact portion 520 abuts between a pair of light source cover bent portions 113 provided apart from each other in the second direction of the light source cover 11.
As shown in FIG. 8, the light source base plate 2 is fixed by using a screw 29, which is an example of a fixture, and the fixing portion is composed of a through hole or a screw hole for the screw 29. Here, it is composed of through holes 521, and there are two at intervals in the second direction.

As shown in FIG. 10, the light source side connecting portion 52 has a locking portion 523 that engages with the short bending portion 21 from the front side by utilizing the through hole 213 of the short bending portion 21 of the light source base plate 2. May be good. The locking portion 523 is the front end portion of the main body portion 50 and is folded back from the center of the second direction to the short bent portion 221 side (here, the inside of the first direction) of the light source base plate 2. The position of the locking portion 523 in the second direction is the center of the two through holes 521.
As shown in FIG. 9, the light source side connecting portion 52 may have a contact portion 524 that abuts the end portion of the flat portion 20 of the light source base plate 2 in the first direction from the front side. The contact portion 524 is referred to as a "front contact portion" for convenience in order to distinguish it from other contact portions. The front contact portions 524 are on both sides in the second direction with respect to the locking portion 523, and are bent inward from the front end of the main body portion 50 in the first direction.
As shown in FIG. 9A, the front contact portion 524 is covered from the front side by the bulging portion 112a of the extending portion 112 of the light source cover 11. This makes it possible to prevent dust, moisture, insects, and the like from entering the light source cover 11. As shown in FIG. 9, the light source cover 11 is fixed to the light source base plate 2 in a state where the back end of the peripheral wall 111a of the covering portion 111 is in contact with the light source cover 11, and the inner end of the front contact portion 524 in the first direction is It abuts or approaches the outer surface of the peripheral wall 111a of the covering portion 111.
Since the light source side connecting portion 52 has the locking portion 523 and the front contact portion 524, it is possible to prevent the light source base plate 2 from falling even when the screw 29 is disengaged.

(6-3) Power supply side connecting portion The power supply side connecting portion 53 is at least the contact portion 530 (see (b) of FIG. 10) that is close to or abuts on the power supply base contact portion 410 of the power supply base plate 4. It has a fixed portion formed on the tangent portion 530 and for fixing the power supply base plate 4. The contact portion 530 is referred to as a "power supply side contact portion" for convenience in order to distinguish it from other contact portions.
Here, as shown in FIG. 8, the power supply side contact portion 530 contacts the inner surface of the power supply base contact portion 410. The power supply side contact portion 530 is provided so as to be separated from each other in the second direction. As a result, even if the arm fixing portion 54 is provided between the power supply side contact portions 530, it is possible to prevent the connecting member 5 from becoming large. Further, the power supply base plate 4 and the light source base plate 2 can be connected in a well-balanced manner.
As shown in FIG. 8, a screw 49 is used for fixing the power supply base plate 4 as an example of the fixture, and the fixing portion is composed of a through hole or a screw hole for the screw 49. Here, it is composed of screw holes 531 and has two holes spaced apart from each other in the second direction. The screw hole 531 is formed by, for example, burring.
As shown in FIGS. 8 and 10, the power supply side connecting portion 53 is screwed in a state where the power supply side contact portion 530 is arranged between the power supply base contact portion 410 and the bent portion 46 of the power supply base plate 4. It is fixed by 49.

The end of the bent portion 46 on the power supply side contact portion 530 side may be in contact with the power supply side contact portion 530. As a result, the connecting member 5 is sandwiched between the short bent portion 41 (power base contact portion 410) of the power base plate 4 and the end portion of the bent portion 46 on the power supply side contact portion 530 side. Then, the outer surface of the connecting member 5 comes into surface contact with the inner surface of the short bent portion 41 of the power supply base plate 4, and the inner surface of the connecting member 5 makes line contact with the end surface of the bent portion 46 on the power supply side contact portion 530 side.
With this configuration, the connecting member 5 and the power supply base plate 4 can be firmly fixed even when the lighting device X swings on both sides in the first direction in a state where the arm material 6 is fixed to a construction material such as a ceiling. ..

(6-4) Arm fixing portion The arm fixing portion 54 has a contact portion 540 facing or contacting the arm member 6, and a first through hole 541 and a second through hole 542 provided in the contact portion 540. is doing. The contact portion 540 is referred to as an "arm-side contact portion" for convenience in order to distinguish it from other contact portions.
As shown in FIGS. 8 and 10, the arm-side contact portion 540 is formed in a region that is substantially the center of the main body portion 50 in the second direction and extends from the back side end to the center in the front and back directions. The inner surface of the arm-side contact portion 540 comes into contact with the arm member 6.
For fixing the arm material 6, screws 57 and 58, which are examples of fixtures, are used, the screw 58 is inserted through the first through hole 541 and screwed into the nut 633 of the arm material 6, and the screw 57 is the second. The through hole 542 is inserted and screwed into the nut 633 of the arm material 6. The screw 58 corresponds to an example of the first fixture of the present invention, and the screw 57 corresponds to an example of the second fixture of the present invention.
As shown in FIG. 8B, the first through hole 541 has a circular shape, and the fitting cylinder portion 65 of the arm member 6 is fitted into the hole. The second through hole 542 has an arc shape centered on the first through hole 541. As a result, the arm material 6 can be rotated clockwise and counterclockwise with the center of the first through hole 541 as the rotation axis, and the irradiation direction of the lighting device X can be adjusted.
As shown in FIG. 8, the arm fixing portion 54 projects to the back side of the back side end of the power supply side connecting portion 53. As a result, the contact distance with the arm material 6 in the front and back directions is increased.

(6-5) Bent portion The bent portion 51 extends in the front-back direction to reinforce the connecting member 5. As shown in FIG. 10, the front end of the bent portion 51 is close to the back end of the short bent portion 21 of the light source base plate 2. The back end of the bent portion 51 is close to the opening 46a of the end portion of the power supply base plate 4 in the first direction.

(7) Arm material This will be described mainly with reference to FIGS. 2 and 3.
The arm member 6 has a construction-side fixing portion 61 fixed to the construction material, and a connection-side fixing portion 63 extending from both ends of the construction-side fixing portion 61 in the first direction to the front side and being fixed to the connecting member 5. .. The arm member 6 has a "U" shape with the front side open when viewed from the second direction.
The construction side fixing portion 61 and the connecting side fixing portion 63 have bent portions 61a and 63a at both ends in the second direction. As a result, the arm material 6 is reinforced. The bent portion 61a of the construction side fixing portion 61 and the bent portion 63a of the connecting side fixing portion 63 are overlapped at both end portions in the first direction of the construction side fixing portion 61. Here, the bent portion 61a of the construction side fixing portion 61 is located outside the bent portion 63a of the connecting side fixing portion 63 in the second direction.
The connecting side fixing portion 63 has a first through hole and a second through hole 631 at the front end portion at intervals in the front and back directions. The first through hole and the second through hole 631 are provided corresponding to the first through hole 541 and the second through hole 542 of the connecting member 5.
The connecting-side fixing portion 63 has a fitting cylinder portion 65 whose inside is inserted into the first through hole of the connecting-side fixing portion 63. The fitting cylinder portion 65 has a cylindrical shape and is fitted into the first through hole 541 of the connecting member 5 as shown in FIG. 8 (b).
In the connecting side fixing portion 63, a nut 633 is fixed to the back side of the first through hole and the second through hole 631. The nut 633 is for a fixture (screws 57, 58 (see (a) in FIG. 8)) for fixing the connecting member 5 and the arm member 6.
In the assembled state, the front side portion of the connecting side fixing portion 63 of the arm member 6 is located in the chipped portion 44 of the power supply base plate 4. As a result, the overhang in the first direction can be reduced as compared with the case where the arm member 6 is fixed to the outer surface of the connecting member 5.

3. 3. Electric wire position between the power supply unit and the light source unit The electric wire that electrically connects the light source unit 1 and the power supply unit 3 is located on the back side of the connecting member 5 when viewed from the first direction of FIG. In other words, when the connecting member 5 is viewed from the first direction, the through hole 203 for the electric wire of the light source base plate 2 is the front end portion of the connecting member 5 and is between the ends in the second direction (“L1” in FIG. 11). The through hole for the electric wire of the power supply base plate 4 (not shown in the figure because the cable bush 35 is inserted in FIG. 7) is the back end of the connecting member 5 and is in the second direction. It is located between the ends of the cable (between "L2" in FIG. 11).
The through hole referred to here is the position of the center of the through hole, and as shown in FIG. 11, the cable bush 35 appears to project from the connecting member 5, but the center of the through hole is in the second direction of the connecting member 5. Located on the edge. As a result, the electric wires passing through the through holes 203 for the electric wires of the light source base plate 2 and the through holes for the electric wires of the power supply base plate 4 are arranged within the range of L1 and L2. As a result, the main body 50 of the connecting member 5 can prevent the electric wires from interfering with each other from the first direction.

Although the embodiments have been described above, the embodiments are not limited to these embodiments, and for example, the following modifications may be used. Further, the embodiment, the modified example, and the modified example may be combined with each other.
Further, even if there is an example not described in the embodiment or the modified example, or a design change within a range not deviating from the gist, it is included in the present invention.

<Modification example>
1. 1. In the embodiment, the arm member 6 is fixed to the inner surface side of the connecting member 5, but the arm member 6 may be fixed to the outer surface side of the connecting member 5.
When the arm member 6 is fixed to the outer surface of the connecting member 5, it is necessary to form the bent portion 63a of the connecting side fixing portion 63 of the arm member 6 so as to bend outward in the first direction. There is a possibility that the number of overhanging parts will increase and the operability when fixing to the construction material will deteriorate.
Further, when the arm member 6 is fixed to the outer surface of the connecting member 5, if the bent portion of the connecting side fixing portion 63 of the arm member 6 is formed so as to be bent inward in the first direction, the bent portion is connected to the light source side. It cannot be stretched to the front end of the portion 52, which may lead to a decrease in strength at the front end.
When the arm member 6 is fixed to the outer surface of the connecting member 5, it is not necessary to provide the chipped portion 45 on the power supply base plate 4.

2. In the embodiment, the arm material 6 is arranged in the chipped portion 45 of the power supply base plate 4, but the power supply base plate 4 may have a structure that does not have the chipped portion 45. However, by arranging the arm material 6 in the chipped portion 45, the arm material 6 also functions as a restricting portion when the arm material 6 is rotated with respect to the power supply base plate 4 (connecting member 5), so that a restricting structure is purposely provided. No need.

3. 3. In the embodiment, the bending direction of the bent portion 63a of the connecting side fixing portion 63 of the arm member 6 and the bending direction of the bending portion 51 of the connecting member 5 are the same, but the bending direction and the bending direction are different. It may be oriented. However, the dimensions in the first direction can be made smaller in the same direction.
In particular, the bending direction and the bending direction are set to the inside of the first direction, the outer surface of the arm member 6 is brought into contact with the inner surface of the connecting member 5, and the arm member 6 is arranged on the chipped portion 45 of the power supply base plate 4. The outer surfaces of the connecting member 5, the arm member 6, and the power supply base plate 4 can be made flush with each other.

4. In the embodiment, a pattern in which the bent portion 46 is bent to the front side with the first direction as an axis is exemplified, but the present invention is not limited to this pattern. The bent portion may be bent to the front side with the second direction as an axis (the bent portion is bent in a state of being parallel to the power supply base contact portion 410). In such a case, for example, a pattern in which the connecting member 5 is fixed by a screw while being sandwiched between the bent portion and the power supply base contact portion 410 can be exemplified.
It is preferable that the outer surface of the connecting member 5 is in surface contact with the power supply base contact portion, and the inner surface (power supply side contact portion) of the connecting member 5 is in contact with the bent portion and is fixed by a screw. In this case, the connecting member 5 (power supply side contact portion), the power supply base contact portion, and the bent portion can be implemented by providing a through hole for the body portion of the screw to penetrate.
With this configuration, the connecting member 5 and the power supply base plate 4 can be firmly fixed even when the lighting device X swings on both sides in the first direction in a state where the arm material 6 is fixed to a construction material such as a ceiling. ..

5. In the embodiment, the first bent portion (contact portion 410) and the second bent portion (bent portion) 46 are provided on the power supply base plate 4, but for example, the connecting member 5 is provided with the contact portion of the power supply base plate 4. A bent portion is provided that abuts on the outer surface of the 410 and bends from the inner surface of the main body 50 of the connecting member 5 in a state of being separated from the main body 50, and the contact portion 410 of the power supply base plate 4 is brought into contact with the connecting member 5-2. It may be sandwiched between two parts.

6. The connecting member 5 of the embodiment has a shape lacking the apex side of an isosceles triangle having the front side as the apex when viewed from the first direction, but is a virtual line extending in the front and back directions through the center of the second direction. The shape may be line-symmetrical with respect to the shape, for example, a polygonal shape such as a square shape or a rectangular shape, or a shape lacking the front and back ends of a circle or an ellipse.
The main body 50 of the connecting member 5 may have a reinforcing ridge portion such as the ridge portion 310d of the power supply cover 31 and the ridge portion 405 of the power supply base plate 4.

7. The connecting member 5 of the embodiment has one locking portion 523 and two front contact portions 524, but has two locking portions spaced apart in the second direction and a front contact portion. One may be held between the two locking portions, or three locking portions may be arranged at intervals in the second direction so that the two front contact portions are arranged with the three locking portions. It may be held in between.
The connecting member 5 is fixed to the light source base plate 2 by two screws 29, but may be fixed by one or three or more screws.
The connecting member 5 has a locking portion 523 and a front contact portion 524. However, when it is fixed by the screw 29, it does not have to have a locking portion and / or a front contact portion. When fixed by the locking portion 523, it is not necessary to have the fixing by the screw 29 and the front contact portion. However, the reliability of the connection with the light source base plate 2 is improved by having the fixing with screws, the locking portion 523, and the front contact portion 524.

8. In the connecting member 5 of the embodiment, the power supply side connecting portion 53 is arranged between the power supply base contact portion (first bent portion) 410 and the bent portion (second bent portion) 46 of the power base plate 4. In a lighting device that is fixed but does not pay attention to this structure, even if it has a structure having a back contact portion that contacts the back surface of the power supply base plate, such as the front contact portion 524 of the light source side connecting portion 52. good.

9. The through hole for the electric wire of the power supply base plate 4 of the embodiment has its center located on the end of the connecting member 5 in the second direction, but is for the electric wire of the light source base plate 2 and the power supply base plate 4. The through hole may be between the ends of the connecting member 5 in the second direction, and may be, for example, at a position where both through holes face each other in the front and back directions. In this case, the electric wire can be shortened.

10. The lighting device X of the embodiment includes the heat dissipation unit 7, but if the amount of heat generated from the light source unit 1 is small, the heat dissipation unit may not be provided.
In the embodiment, a screw is used as a fixture, but for example, a rivet, a fastener, or the like may be used.

X Lighting device 1 Light source unit 2 Light source base plate 3 Power supply unit 4 Power supply base plate 5 Connecting member 6 Arm material

Claims (7)

A light source base plate on which the light source unit is mounted on the surface,
The power supply base plate on which the power supply unit is mounted on the back side,
A pair of connecting members that connect both ends of the light source base plate and the power supply base plate in the first direction in the front-back direction.
It is equipped with an arm material that is attached to the pair of connecting members and is attached to a construction material.
The pair of connecting members is a lighting device made of a metal plate. The power supply base plate has first bent portions that bend to the front side at both ends in the first direction.
The lighting device according to claim 1, wherein the first bent portion faces the connecting member. The first bent portion faces the surface of the connecting member located outside the first direction.
The power supply base plate has second bent portions that bend to the front side at both ends in the first direction.
The lighting device according to claim 2, wherein the connecting member is fixed by a fixture while being arranged between the first bent portion and the second bent portion. The connecting member has a first through hole and an arc-shaped second through hole centered on the first through hole at a portion facing the arm member.
The arm material is any one of claims 1 to 3 fixed to the facing portion by a first fixture through which the first through hole is inserted and a second fixture through which the second through hole is inserted. The lighting device according to item 1. The first through hole has a circular shape.
The lighting device according to claim 4, wherein the arm material has a fitting cylinder portion that fits into the first through hole. The arm material has a construction-side fixing portion fixed to the construction material and a connection-side fixing portion extending from both ends of the construction-side fixing portion in the first direction to the front side and being fixed to the connecting member. death,
The construction-side fixing portion and the connecting-side fixing portion have bent portions at both ends in the second direction orthogonal to the first direction.
The present invention according to any one of claims 1 to 5, wherein the bent portion of the built-side fixed portion and the bent portion of the connecting-side fixed portion are overlapped at both end portions of the built-side fixed portion in the first direction. The luminaire described. The light source unit and the power supply unit are electrically connected by electric wires.
Looking at the connecting member from the first direction, the through hole for the electric wire of the light source base plate is the front end portion of the connecting member and is between the ends in the direction orthogonal to the first direction and the front and back directions. The through hole for the electric wire of the power supply base plate is located at the back side end portion of the connecting member and is located between the end portions in the direction orthogonal to the first direction and the front and back directions. The lighting device according to any one of the above items.

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