JP7572743B2 - Lighting equipment - Google Patents

Description

The present invention relates to a lighting device equipped with an arm material that can be attached to construction materials.

The lighting device proposed includes a light source base plate on the front side of which a light source unit is mounted, a power supply base plate on the back side of which a power supply unit is mounted, and 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, and the connecting member is integrally formed by aluminum die casting with a fixing portion, a pair of mounting portions, and a bearing portion (for example, see Patent Document 1).

JP 2016-100318 A

In the above-mentioned lighting device, the connecting member is made of aluminum die casting, and therefore the weight is heavy. Furthermore, when the weight is heavy, the mechanical properties required for the arm material, connecting member, etc. are high, which leads to an increase in costs, etc.
An object of the present invention is to provide a lighting device that can be made lighter than a connecting member formed by aluminum die casting.

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

With the above configuration, the connecting member is made of metal, making it lighter than a device that uses connecting members made from aluminum die casting.

1A and 1B are perspective views of an illumination device according to an embodiment, in which FIG. 1A is a view seen from the front side, and FIG. FIG. 2 is a perspective view of the lighting device in a disassembled state as viewed from the front side. FIG. 2 is a perspective view of the lighting device in an exploded state as viewed from the rear side. 11 is a perspective view of a state in which some fins and a light source cover are removed from a light source base plate, as viewed from the front side. FIG. 13 is a perspective view showing a state in which some fins and a light source cover are removed from a light source base plate, as viewed from the back side. FIG. 13 is a rear perspective view of the power supply cover, the insulating sheet, and the terminal unit after being removed from the power supply base plate. FIG. 11 is a perspective view of the power supply cover, the insulating sheet, and the terminal unit removed from the power supply base plate, as viewed from the front side. FIG. 1A is an enlarged perspective view of the connecting member and its periphery as viewed from the rear side, and FIG. 1B is an enlarged perspective view of the connecting member and its periphery as viewed from the rear side with the screws removed. 1A is an enlarged oblique view of the area around the front end of the connecting member as viewed from the front side, FIG. 1B is an enlarged cross-sectional view of the connecting member at a middle position in the second direction, and FIG. 1C is an enlarged cross-sectional view of the connecting member at the position of the screw. This is an enlarged cross-sectional view of a state cut at one end side in the first direction, viewed from the inside in the first direction, (a) being an oblique view from the back side, and (b) being an oblique view from the front side. 13 is a diagram illustrating the positions of the through holes for electric wires in the power supply base plate and the electric wire generating through holes in the light source base plate, as viewed from a first direction. FIG.

＜Overview＞
A lighting device according to one embodiment includes a light source base plate on which a light source unit is attached, a power supply base plate on which a power supply unit is attached, a pair of connecting members connecting both ends in a first direction of the light source base plate and the power supply base plate in a front-to-back direction, and an arm member attached to the pair of connecting members and for attachment to a construction material, the pair of connecting members being made of metal plates.
In the lighting device according to another aspect of the embodiment, the power supply base plate has first bent portions bent toward the front side at both ends in the first direction, and the first bent portions face the connecting member, thereby enabling the power supply base plate and the connecting member to be firmly connected to each other.
In another aspect of the embodiment, the lighting device has a first bent portion facing a surface of the connecting member located outside in the first direction, the power supply base plate has a second bent portion bent toward the front side at both ends in the first direction, and the connecting member is fixed by a fixing device while being disposed between the first bent portion and the second bent portion. This allows the power supply base plate and the connecting member to be firmly connected, and is also strong against swinging in the first direction.

In a lighting device according to another aspect of the embodiment, the connecting member has a first through hole and a second through hole having an arc shape centered on the first through hole at an opposing portion facing the arm material, and the arm material is fixed to the opposing portion by a first fastener that passes through the first through hole and a second fastener that passes through the second through hole. This allows the arm material and the connecting member to be firmly connected to each other and is also strong against swinging in a first direction.
In a lighting device according to another aspect of the embodiment, the first through hole is circular, and the arm member has a fitting tubular portion that fits into the first through hole. This allows the arm member to be easily aligned with the connecting member. Also, the arm member can be smoothly rotated with respect to the connecting member.
In a lighting device according to another aspect of the embodiment, the arm member has a construction-side fixing part fixed to the construction material, and a connecting-side fixing part extending from both ends of the construction-side fixing part in the first direction to the front side and fixed to the connecting member, the construction-side fixing part and the connecting-side fixing part have bent parts at both ends in a second direction perpendicular to the first direction, and the bent parts of the construction-side fixing part and the connecting-side fixing part overlap at both ends of the construction-side fixing part in the first direction, thereby improving the rigidity of the arm member.
In a 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 through hole for the electric wire in the light source base plate is located at a front end of the connecting member and between ends in a direction perpendicular to the first direction and the front-back direction, and the through hole for the electric wire in the power supply base plate is located at a rear end of the connecting member and between ends in a direction perpendicular to the first direction and the front-back direction. This allows the electric wire to be shaded by the connecting member, thereby protecting the electric wire from intrusion of foreign matter from outside the lighting device.

<Embodiment>
1 to 3, the lighting device X includes a light source base plate 2 on whose front surface the light source unit 1 is attached, a power supply base plate 4 on whose back surface the power supply unit 3 is attached, a pair of connecting members 5 that connect both ends in the first direction of the light source base plate 2 and the power supply base plate 4 in the front-back direction, and an arm member 6 that is attached to the pair of connecting members 5 and is used for attachment to a construction material. The lighting device X here includes a heat dissipation unit 7 on the back surface of the light source base plate 2. The direction perpendicular to the first direction and the front-back direction is defined as the second direction.
Each component will be described below.

2. Components (1) Light Source Unit The following will be explained mainly with reference to Figs.
The light source unit 1 includes, for example, a light source module 10 and a light source cover 11 that covers the front side of the light source module 10. The light source module 10 and the light source cover 11 are attached to a light source base plate 2.
4, the light source module 10 includes, for example, a rectangular light source substrate 13 that is elongated in a 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 screws 15 , which are an example of a fastener, that are inserted through through holes (not shown) of the light source board 13 from the front side.

The light source cover 11 has a covering portion 111 that covers the light source module 10 from the front side, an extension portion 112 that extends outward from the periphery of the covering portion 111 along the flat portion 20 of the light source base plate 2, and a light source cover bending portion 113 that bends from the edge of the extension portion 112 to the back side.
The covering portion 111 has a rectangular thin dish shape that is long in the first direction.
The extension portion 112 has a rectangular shape whose outer periphery roughly coincides with the outer periphery 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 extension portion 112. A screw 16, which is an example of a fastener, is inserted into the through hole 112b and is screwed into the screw hole 201 of the flat portion 20. As shown in FIG. 9, the extension portion 112 has a bulging portion 112a that bulges out toward the front side in correspondence with the front abutting portion 524 of the connecting member 5.
A plurality of light source cover bending portions 113 are provided at intervals along the periphery of the extension portion 112. The light source cover bending portions 113 have an attachment function for attaching the light source cover 11 to the light source base plate 2. The light source cover bending portion 113 has a convex portion 113a at the bending tip side that protrudes inward in the first direction, and the convex portion 113a fits into the through hole 210 of the bending portion 21 of the light source base plate 2 as shown in Fig. 10. The light source cover bending portion 113 is configured to be elastically deformable in the protruding direction of the convex portion 113a, making it easy to attach it to the light source base plate 2.

(2) Heat Dissipation Unit The heat dissipation unit will be described mainly with reference to FIGS.
The heat dissipation unit 7 is composed of a plurality of fins 71 , and the plurality of fins 71 are attached to the rear 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 dissipation portions 711. For example, an aluminum plate having a thickness of 0.2 to 0.5 mm can be used as the metal plate. The fin 71 is provided such that the main surface of the heat dissipation portion 711 is parallel to, for example, the first direction.
The fin 71 has a fin fitting portion 712 at the fixing portion 710, which fits into the light source base fitting portion 202 of the light source base plate 2. 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. With the light source base fitting portion 202 and the fin fitting portion 712 fitted together, the fixing portion 710 is fixed by, for example, spot welding.
The heat dissipation portion 711 has a rectangular shape that is long in the first direction and has one or more reinforcing protrusions 711a along the first direction. This increases the rigidity of the surface of the fin 71, allowing a thin (e.g., 0.2 to 0.5 mm) metal plate to be used as the fin 71.
The heat dissipation portion 711 has folded-back portions 711b folded back from three edges excluding the edge connected to the fixed portion 710. This increases the rigidity of the heat dissipation portion 711, and allows a thin (e.g., 0.2 to 0.5 mm) metal plate to be used as the fin 71. Note that the folded-back portions 711b here are folded back to the side opposite to the side where the opposing heat dissipation portion 711 exists within the same fin 71, but they may be folded back to the side where the heat dissipation portion 711 exists, or may be folded back to both sides.

(3) Light Source Base Plate The following description will be given mainly with reference to FIGS.
The light source base plate 2 has a flat portion 20 having a rectangular shape that is long in the first direction, and bent portions 21, 22 that bend backward from the edges of the flat portion 20. The light source module 10 and the light source cover 11 are attached to the front surface of the flat portion 20, and the heat dissipation unit 7 is attached to the rear surface of the flat portion 20. The light source cover 11 is attached to the bent portion 21 that is perpendicular to the first direction.
The flat portion 20 has a screw hole 204 for fixing the light source module 10, a screw hole 201 for fixing the light source cover 11, a light source base fitting portion 202 for fitting with the fin fitting portion 712 of the fin 71, and a through hole 203 for an electric wire (not shown) that electrically connects the light source unit 1 and the power supply unit 3.

Here, the bent portion 21 perpendicular to the first direction is provided on the edge of the short side of the flat portion 20, and is therefore referred to as the short bent portion 21, while the bent portion 22 parallel to the first direction is provided on the edge of the long side of the flat portion 20, and is therefore referred to as the long bent portion 22. When there is no need to distinguish between the short bent portion 21 and the long bent portion 22, they are referred to as the bent portions 21 and 22.
The bent portions 21 and 22 have through holes 210 for engaging with the convex portions 113a of the light source cover bent portions 113 of the light source cover 11 (see FIG. 10).
4 and 5, the short bent portion 21 has an intermediate portion in the second direction that protrudes to the rear side, and the center of the protruding portion has an abutment portion 211 that abuts against the connecting member 5. The abutment portion 211 is referred to as a light source base abutment portion 211 in order to distinguish it from other abutment portions described below. This makes it possible to increase the abutment area.
1, the light source base plate 2 has a fixing portion for fixing the connecting member 5 to the short bent portion 21 in a state in which the light source base abutment portion 211 abuts against the connecting member 5. Here, a screw 29 is used for fixing, and the fixing portion is constituted by a screw hole 212.
10, the short bent portion 21 has a through hole 213 for engaging with the engaging portion 523 of the connecting member 5, straddling the end of the flat portion 20 in the first direction. The through hole 213 is provided in the approximate center of the short bent portion 21 in the second direction. This can improve the design. Also, the weight balance in the second direction can be improved.

(4) Power Supply Unit This will be explained mainly with reference to FIG.
The power supply unit 3 includes at least a power supply circuit 30 arranged on a 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 metal plates, the power supply unit 3 includes an insulating sheet 32 for ensuring insulation of the power supply circuit 30. The power supply unit 3 includes a terminal unit 33 for connecting to a commercial power source. The power supply unit 3 includes a wireless communication unit 34 for wireless communication with an external controller.
If wireless communication is not required, the wireless communication unit 34 may not be provided, and if the insulation properties of the power supply circuit 30 can be ensured, the insulating sheet 32 may not be provided.

The power supply circuit 30 is configured with a power supply board 301 and a plurality of electronic components 303, and is provided at a distance from the rear side of the power supply base plate 4. The power supply circuit 30 generates lighting power from a commercial power source and adjusts the lighting power according to instructions from the wireless communication unit 34.
6 and 7, the plurality of electronic components 303 are depicted as one block. The power supply unit 3 has a connector 305 on the power supply board 301, which is connected to an electric wire connected to the terminal unit 33. The power supply board 301 is attached to the power supply base plate 4 by using a screw 309 that passes through a spacer 307, which will be described later.
The insulating sheet 32 is formed by folding a sheet body 320 made of an insulating resin material into a cylindrical shape, and the power supply circuit 30 is disposed inside the sheet body 320. The insulating sheet 32 has through holes 321 for spacers 307 for spacing the power supply board 301 away from the power supply base plate 4, through holes 323 for electric wires connecting the connector 305 and the terminal unit 33, and notches 325 for electric wires (including signal and power wires) for electrically connecting the power supply circuit 30 and the wireless communication unit 34 in the sheet body 320.

The power supply cover 31 has a cover body 310 in the shape of a box with an open front, and a power supply cover bent portion 311 that is bent outward (e.g., outward in the second direction) from the opening edge of the cover body 310. The power supply cover 31 is formed, for example, by bending an aluminum plate having a thickness of 0.2 to 0.5 mm.
The cover body 310 has a top wall portion 310a that is long in the first direction, and side wall portions 310b and 310c that stand on the front side from the periphery of the top wall portion 310a.
The cover body 310 has a reinforcing protrusion 310d at least on the top wall 310a. Here, the protrusion 310d is provided on the top wall 310a and the side wall 310c along the first direction. This increases the rigidity of the surface of the power supply cover 31, allowing a thin (e.g., 0.2 to 0.5 mm) metal plate to be used as the power supply cover 31.
The side wall portion 310b may also have a protruding portion. The protruding portion 310d extends along the first direction, and the top wall portion 310a has a plurality of protruding portions in the second direction. The protruding portions 310d protrude to the outside of the cover body 310, but may protrude to the inside or to both the inside and outside. The protruding portions may also extend in the second direction. This can contribute to increasing the rigidity of the power supply cover 31 compared to a case in which the protruding portions 310d are provided only on the top wall portion 310a.

One side wall portion 310c, which is provided on the edge corresponding to the long side of the top wall portion 310a, has through holes 310e, 310f for attaching the terminal block 331 to the terminal block mounting member 333 inside the power supply cover 31 in the assembled state, a through hole for fixing the power supply cover 31 to the terminal block mounting member 333, and a through hole 310h for an electric wire connecting the connector 305 and the terminal block 331.
The power supply cover 31 is fixed to the terminal block mounting member 333 using screws 319, which screw into screw holes 333a of the terminal block mounting member 333. A notch 310g for the wireless communication unit 34 is provided in the side wall portion 310c.
The cover body 310 has a folded portion 310j folded back from the front edge 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 back inward, outward, or on both the inside and outside.
The cover body 310 has a folded portion 310k folded back from an edge constituting the cutout portion 310g 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 back inward, outward, or on both the inside and outside.
The power supply cover bent portion 311 is provided on both ends of one side wall portion 310c in the first direction. A through hole 311a is provided in the power supply cover bent portion 311, and a screw 318 that passes through the through hole 311a is screwed into a 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 on the power supply base plate 4 at a portion located inside the power supply cover 31. To mount the terminal block 331, the fixing pin 331a and the engagement claw 331b of the terminal block 331 pass through the through holes 310e and 310f of the power supply cover 31 and fit into the through holes 333b and 333c of the terminal block mounting member 333. The terminal block mounting member 333 has a U-shaped cross section and is long in the front-to-back direction.
The terminal unit 33 has a terminal block cover 332 that covers a terminal block 331 fixed to a terminal block mounting member 333. The terminal block cover 332 is box-shaped with an open front side and a side facing the side wall portion 310c of the power supply cover 31, and has an opening (here, a through hole 332a) for an electric wire on an end face perpendicular to the first direction.

The wireless communication unit 34 is supported by the power supply cover 31 and the like by fitting the wireless communication unit 34 into the cutout 310g of the power supply cover 31 and attaching the power supply cover 31 to the power supply base plate 4. The wireless communication unit 34 is disposed at a distance in the first direction from the terminal unit 33. The wireless communication unit 34 houses in the communication case 341 a wireless module that receives a lighting signal from a controller (not shown) and outputs lighting conditions to the power supply circuit 30, and determines whether a received signal relates to the device itself when multiple lighting devices X are controlled by one controller.

(5) Power Supply Base Plate This will be explained mainly with reference to FIGS. 6 and 7. FIG.
The power supply base plate 4 has a flat portion 40 having a rectangular shape that is long in the first direction, and bent portions 41, 42 that bend from the edge of the flat portion 40 to the rear side. Here, the bent portion 41 that is perpendicular to the first direction is provided on the edge of the short side of the flat portion 400, and is therefore referred to as a short bent portion 41, and the bent portion 42 that is parallel to the first direction is provided on the edge of the long side of the flat portion 40, and is therefore referred to as a long bent portion 42. Note that when there is no need to distinguish between the short bent portion 41 and the long bent portion 42, they are referred to as bent portions 41, 42.

The flat portion 40 has approximately the same shape and size as the flat portion 20 of the light source base plate 2, and is connected to the flat portion 20 by a connecting member 5 in a state where the flat portion 40 faces the flat portion 20 on the front and back. The power supply circuit 30 and the like are attached to 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. For example, a press-fit nut (bob spacer) or the like can be used as the spacer 307. The spacer may be a separate cylindrical body that is not integrated with the power supply base plate 4.
The flat portion 40 has screw holes 403 (see FIG. 7 ) for screws 309 for fixing the power supply circuit 30 (power supply board 301), through holes 402 (see FIG. 7 ) for screws 339 for fixing the terminal block mounting member 333 for mounting the terminal unit 33, screw holes 401 for screws 318 for fixing the power supply cover 31, and through holes for electric wires that electrically connect 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.
The flat portion 40 has one or more protruding portions 405 as shown in FIG. 7. Here, the protruding portions 405 extend along the first direction. The flat portion 40 has one protruding portion 405 at approximately the center in the second direction. This reinforces the flat portion 40. The protruding portion 405 protrudes on the front side, but may protrude on the back side, or if there are multiple protruding portions, may protrude on both the front and back sides. The protruding portion 405 may extend along the second direction.

The power supply base plate 4 has a notch 44 for the arm material 6 in the flat portion 40. The notch 44 is provided at both ends of the flat portion 40 in the first direction and approximately in the center in the second direction. The power supply base plate 4 has an erect portion 45 that utilizes the notch 44 and is erected on the back side of the part of the flat portion 40 facing the notch 44. The surface of the erect portion 45 opposite the notch 44 faces or abuts against the outer surface of the side wall portion 310b of the power supply cover 31. This makes it possible to restrict 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 that protrudes to the front side, and the protruding portion has an abutment portion 410 that abuts against the connecting member 5. The abutment portion 410 corresponds to an example of a first bent portion of the present invention. For convenience, the abutment portion 410 is referred to as a power source base abutment portion in order to distinguish it from other abutment portions. The power source base abutment portion 410 is located on both sides of the notch portion 44 in the second direction. This can improve the design. Also, the weight balance in the second direction can be improved. The power source base abutment portion 410 abuts against the outer surface of the power source side abutment portion 530 of the connecting member 5. The outer surface is the surface opposite to the side where the pair of connecting members 5 face each other and located on the outside in the first direction.
The power supply base plate 4 has a fixing portion at the power supply base abutting portion 410 for fixing the connecting member 5 in a state where the connecting member 5 abuts against the power supply base abutting portion 410. Here, a screw 49, which is an example of a fixing tool, is used for fixing, and the fixing portion is configured by 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 of the notch portion 44 in the second direction. The bent portions 46 correspond to an example of the second bent portion of the present invention. The bent portions 46 bend to the front side with the first direction as an axis with respect to the notch portion 44. The bent portions 46 are formed by bending the inner part of the "U"-shaped groove, and the inner part of the "U"-shaped groove remains in the flat portion 40 as an opening 46a. The bent portions 46 are formed at a distance in the first direction from the short bent portion 41. The connecting member 5 is fixed by the screw 49 with the rear end of the connecting member 5 inserted (disposed) between the bent portions 46 and the short bent portion 41 (power supply base abutment portion 410). As a result, the rear end of the connecting member 5 is supported (abutted) by the power supply base plate 4 from both sides in the first direction, and rattling in the first direction can be reduced.

(6) Connecting Member The following description will be given mainly with reference to FIGS. 2 and 3, and with reference to FIGS. 8 to 10 when describing the connected state and the like.
The connecting member 5 is made of, for example, a metal plate. Examples of the metal plate that can be used include an aluminum plate, an iron plate, a stainless steel plate, etc. From the viewpoint of weight reduction, an aluminum plate is preferable.
2 and 3, the connecting member 5 has a main body portion 50 and bending portions 51 that bend inward in the first direction from both end edges in the second direction of the main body portion 50. The connecting member 5 has a light source side connecting portion 52 that is connected to the light source base plate 2 at the front end of the main body portion 50, and a power source side connecting portion 53 that is connected to the power source base plate 4 at the back end of the main body portion 50. The connecting member 5 also has an arm fixing portion 54 to which the arm material 6 is fixed at the back end side of the main body portion 50.

(6-1) Main Body The dimension of the main body 50 in the second direction is larger on the back side than on the front side. This allows the power supply side connecting part 53 and the arm fixing part 54 to be provided compactly at the back end of the connecting member 5.
When viewed from the first direction, the main body 50 has a trapezoidal shape with the apex of an isosceles triangle missing, which provides good balance in the second direction.

(6-2) The light source side connecting portion 52 has at least an abutting portion 520 that abuts against the short bent portion 21 of the light source base plate 2, and a fixing portion that is formed on the abutting portion 520 and fixes the light source base plate 2. For the sake of convenience, the abutting portion 520 is referred to as the "light source side abutting portion" in order to distinguish it from other abutting portions.
8, the light source side abutment portion 520 abuts against the outer surface of the light source base abutment portion 211 (see FIG. 10) of the short bent portion 21. The light source side abutment portion 520 abuts between a pair of light source cover bend portions 113 spaced apart from each other in the second direction in the light source cover 11.
8, the light source base plate 2 is fixed using screws 29, which are an example of a fixing tool, and the fixing portion is composed of through holes or screw holes for the screws 29. Here, the fixing portion is composed of through holes 521, and there are two of them spaced apart in the second direction.

10, the light source side connecting portion 52 may have a locking portion 523 that engages with the short bent portion 21 from the front side by utilizing the through hole 213 of the short bent portion 21 of the light source base plate 2. The locking portion 523 is folded back from the center in the second direction at the front side end of the main body 50 to the short bent portion 221 side of the light source base plate 2 (here, the inside in the first direction). The position of the locking portion 523 in the second direction is the center between the two through holes 521.
9, the light source side connecting portion 52 may have abutting portions 524 that abut against the end portion in the first direction of the flat portion 20 of the light source base plate 2 from the front side. The abutting portions 524 are referred to as "front abutting portions" for convenience in order to distinguish them from other abutting portions. The front abutting portions 524 are on both sides of the locking portion 523 in the second direction, and are bent from the front end of the main body portion 50 inward in the first direction.
9A, the front abutment portion 524 is covered from the front side by the bulging portion 112a of the extension portion 112 of the light source cover 11. This makes it possible to prevent the intrusion of dust, moisture, insects, and the like into 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 in which the rear end of the peripheral wall 111a of the covering portion 111 abuts against it, and the inner end in the first direction of the front abutment portion 524 abuts against or is close to the outer surface of the peripheral wall 111a of the covering portion 111.
In addition, since the light source side connecting portion 52 has the locking portion 523 and the front abutment portion 524, it is possible to prevent the light source base plate 2 from falling off even if the screw 29 comes loose.

(6-3) Power Supply Side Connection Part The power supply side connection part 53 has at least an abutment part 530 (see FIG. 10(b)) that is close to or abuts the power supply base abutment part 410 of the power supply base plate 4, and a fixing part that is formed in the abutment part 530 and fixes the power supply base plate 4. For the sake of convenience, the abutment part 530 is referred to as the "power supply side abutment part" in order to distinguish it from other abutment parts.
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 portions 530 are spaced apart in the second direction. This makes it possible to prevent the connecting member 5 from becoming large even if the arm fixing portion 54 is provided between the power supply side contact portions 530. Also, the power supply base plate 4 and the light source base plate 2 can be connected in a well-balanced manner.
8, the power supply base plate 4 is fixed using a screw 49, which is an example of a fixing tool, and the fixing portion is composed of a through hole or a screw hole for the screw 49. Here, it is composed of a screw hole 531, and there are two of them spaced apart in the second direction. The screw hole 531 is formed by, for example, burr processing.
As shown in Figures 8 and 10, the power supply side connecting portion 53 is fixed by a screw 49 with the power supply side abutment portion 530 disposed between the power supply base abutment portion 410 and the bent portion 46 of the power supply base plate 4.

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 supply base contact portion 410) of the power supply base plate 4 and the end of the bent portion 46 on the power supply side contact portion 530 side. The outer surface of the connecting member 5 is in 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 is in line contact with the end surface of the bent portion 46 on the power supply side contact portion 530 side.
With this configuration, when the arm material 6 is fixed to a construction material such as a ceiling, even if the lighting device X swings to both sides in the first direction, the connecting member 5 and the power supply base plate 4 can be firmly fixed together.

(6-4) Arm Fixing Portion The arm fixing portion 54 has an abutment portion 540 which faces or abuts against the arm material 6, and a first through hole 541 and a second through hole 542 provided in the abutment portion 540. For the sake of convenience, the abutment portion 540 is referred to as the "arm side abutment portion" in order to distinguish it from other abutment portions.
8 and 10, the arm-side contact portion 540 is formed in a region extending from the rear end to the center in the front-rear direction at approximately the center in the second direction of the main body portion 50. The inner surface of the arm-side contact portion 540 contacts the arm material 6.
The arm material 6 is fixed using screws 57 and 58, which are an example of a fixing device, with the screw 58 being inserted through the first through hole 541 and screwed into the nut 633 of the arm material 6, and the screw 57 being inserted through the second through hole 542 and screwed into the nut 633 of the arm material 6. The screw 58 corresponds to an example of the first fixing device of the present invention, and the screw 57 corresponds to an example of the second fixing device of the present invention.
8(b), the first through hole 541 has a circular shape, and the fitting tube portion 65 of the arm material 6 fits into the hole. The second through hole 542 has an arc shape centered on the first through hole 541. This allows the arm material 6 to rotate clockwise and counterclockwise around the center of the first through hole 541 as the rotation axis, and the irradiation direction of the lighting device X can be adjusted.
8, the arm fixing portion 54 protrudes rearward beyond the rear end of the power supply side connecting portion 53. This increases the contact distance with the arm material 6 in the front-rear direction.

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

(7) Arm Material The following description will be given mainly with reference to Figs.
The arm material 6 has a construction-side fixing part 61 that is fixed to the construction material, and a connecting-side fixing part 63 that extends from both ends of the construction-side fixing part 61 in the first direction to the front side and is fixed to the connecting member 5. When viewed from the second direction, the arm material 6 has a "C" shape with the front side open.
The construction side fixing part 61 and the connecting side fixing part 63 have bent parts 61a, 63a at both ends in the second direction. This reinforces the arm material 6. The bent part 61a of the construction side fixing part 61 and the bent part 63a of the connecting side fixing part 63 overlap at both ends in the first direction of the construction side fixing part 61. Here, the bent part 61a of the construction side fixing part 61 is located outside the bent part 63a of the connecting side fixing part 63 in the second direction.
The connecting side fixing part 63 has a first through hole and a second through hole 631 at a front end part thereof spaced apart in the front-back direction. The first through hole and the second through hole 631 are provided to correspond to the first through hole 541 and the second through hole 542 of the connecting member 5.
The connecting side fixing part 63 has a fitting tube part 65 whose inside is inserted into the first through hole of the connecting side fixing part 63. The fitting tube part 65 has a cylindrical shape, and fits into the first through hole 541 of the connecting member 5, as shown in Fig. 8(b) .
The connecting side fixing portion 63 has nuts 633 fixed to the back side of the first through hole and the second through hole 631. The nuts 633 are for use with fasteners (screws 57, 58 (see FIG. 8A)) that fix 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 material 6 is located within the notch portion 44 of the power supply base plate 4. This makes it possible to reduce the protrusion in the first direction compared to when the arm material 6 is fixed to the outer surface of the connecting member 5.

3. Position of Electric Wires Between Power Supply Unit and Light Source Unit When viewed from the first direction in Fig. 1, the electric wires electrically connecting the light source unit 1 and the power supply unit 3 are located on the back side of the connecting member 5. In other words, when viewing the connecting member 5 from the first direction, the through hole 203 for the electric wires in the light source base plate 2 is located at the front end of the connecting member 5 between the ends in the second direction (between "L1" in Fig. 11), and the through hole for the electric wires in the power supply base plate 4 (not shown in Fig. 7 because the cable bush 35 is inserted therein) is located at the back end of the connecting member 5 between the ends in the second direction (between "L2" in Fig. 11).
The through hole referred to here is the position of the center of the through hole, and although the cable bush 35 appears to protrude from the connecting member 5 as shown in Fig. 11, the center of the through hole is located on the end of the connecting member 5 in the second direction. As a result, the electric wire passing through the through hole 203 for the electric wire of the light source base plate 2 and the through hole for the electric wire of the power supply base plate 4 is routed within the range of L1 and L2. As a result, the main body 50 of the connecting member 5 can prevent interference with the electric wire from the first direction.

Although the embodiments have been described above, the present invention is not limited to these embodiments, and may be modified as follows, for example. In addition, the embodiments and the modified examples, or the modified examples may be combined with each other.
Furthermore, the present invention also includes examples that are not described in the embodiments and modified examples, and design changes that do not deviate from the gist of the invention.

<Modification>
1. In the embodiment, the arm material 6 is fixed to the inner surface side of the connecting member 5 , but the arm material 6 may be fixed to the outer surface side of the connecting member 5 .
When fixing the arm material 6 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 material 6 so that it is bent outward in the first direction, which results in a large protruding portion in the first direction, and this may result in poor operability when fixing it to the construction material.
Furthermore, when the arm material 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 material 6 is formed to bend inward in the first direction, the bent portion cannot be extended to the front end of the light source side connecting portion 52, which may result in a decrease in strength at the front end.
When the arm material 6 is fixed to the outer surface of the connecting member 5 , it is not necessary to provide the notch 45 in the power supply base plate 4 .

2. In the embodiment, the arm material 6 is disposed within the notch 45 of the power supply base plate 4, but the power supply base plate 4 may have a structure that does not have the notch 45. However, by disposing the arm material 6 within the notch 45, it also functions as a regulating part when the arm material 6 is rotated relative to the power supply base plate 4 (connecting member 5), so there is no need to take the trouble of providing a regulating structure.

3. In the embodiment, the bending direction of the bent portion 63a of the connecting side fixing portion 63 of the arm material 6 and the bending direction of the bent portion 51 of the connecting member 5 are the same direction, but the bending direction and the bending direction may be different directions. However, having them in the same direction can reduce the dimension in the first direction.
In particular, by setting the folding direction and bending direction on the inside of the first direction, abutting the outer surface of the arm material 6 against the inner surface of the connecting member 5, and arranging the arm material 6 in the notch 45 of the power supply base plate 4, the outer surfaces of the connecting member 5, the arm material 6 and the power supply base plate 4 can be made flush.

4. In the embodiment, the bent portion 46 is bent toward the front side with the first direction as an axis, but the pattern is not limited to this. The bent portion may be bent toward the front side with the second direction as an axis (the bent portion is bent in a state parallel to the power supply base abutting portion 410). In such a case, for example, a pattern in which the connecting member 5 is sandwiched between the bent portion and the power supply base abutting portion 410 and fixed by a screw can be exemplified.
Preferably, the outer surface of the connecting member 5 is in surface contact with the power source base contact portion, and the inner surface (power source side contact portion) of the connecting member 5 is in contact with the bent portion and fixed by a screw. In this case, the connecting member 5 (power source side contact portion), the power source base contact portion, and the bent portion can be provided with a through hole for the body of the screw to pass through.
With this configuration, when the arm material 6 is fixed to a construction material such as a ceiling, even if the lighting device X swings to both sides in the first direction, the connecting member 5 and the power supply base plate 4 can be firmly fixed together.

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 may be abutted against the outer surface of the abutment portion 410 of the power supply base plate 4, and a bent portion may be provided that bends from the inner surface of the main body portion 50 of the connecting member 5 in a state of being separated from the main body portion 50, and the abutment portion 410 of the power supply base plate 4 may be sandwiched between the two portions of the connecting member 5.

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

7. The connecting member 5 in the embodiment has one locking portion 523 and two front abutment portions 524, but it may have two locking portions spaced apart in the second direction and one front abutment portion between the two locking portions, or it may have three locking portions spaced apart in the second direction and two front abutment portions between the three locking portions.
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 abutment portion 524. However, when fixing is performed with the screw 29, it is not necessary to have the locking portion and/or the front abutment portion. When fixing is performed with the locking portion 523, it is not necessary to have the fixation by the screw 29 and the front abutment portion. However, fixation by the screw and having the locking portion 523 and the front abutment portion 524 improves the reliability of the connection with the light source base plate 2.

8. In the embodiment, the connecting member 5 is fixed with the power supply side connecting portion 53 disposed between the power supply base abutment portion (first bend) 410 and the bend portion (second bend) 46 of the power supply base plate 4, but in lighting devices that do not focus on this structure, the structure may have a back abutment portion that abuts against the back surface of the power supply base plate, such as the front abutment portion 524 of the light source side connecting portion 52.

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

10. Although the lighting device X of the embodiment includes the heat dissipation unit 7, if the amount of heat generated from the light source unit 1 is small, the heat dissipation unit may not be included.
In the embodiment, screws are used as fasteners, but rivets, fasteners, etc., for example, may also be used.

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

Claims (8)

a light source base plate on whose surface the light source unit is attached;
A power supply base plate on the back of which the power supply unit is attached;
a pair of connecting members that connect the light source base plate and the power source base plate in a front-back direction;
The pair of connecting members are made of metal plates,
the power supply unit includes a power supply circuit including a power supply board, a power supply cover that covers the power supply circuit, and a wireless communication unit that wirelessly communicates with an external controller;
the wireless communication unit outputs a lighting condition of the light source unit to the power supply circuit in response to a signal received from the controller;
The power supply cover has a top wall portion and a side wall portion extending from a periphery of the top wall portion to a front side and having a notch portion, and is attached to the power supply base plate;
a portion of the wireless communication unit is exposed to the outside through the cutout of the power supply cover and is supported by the side wall of the power supply cover;
the power supply base plate includes a support plate that supports the power supply board and the wireless communication unit ;
The support plate fits into the notch.
Lighting equipment. The edge of the notch is shaped to follow the outer edge of the support plate.
10. The lighting device of claim 1 . The support plate is erected perpendicular to the power supply base plate.
3. The lighting device according to claim 1 or 2 . a light source base plate on whose surface the light source unit is attached;
A power supply base plate on the back of which the power supply unit is attached;
a pair of connecting members that connect the light source base plate and the power source base plate in a front-back direction;
The pair of connecting members are made of metal plates,
the power supply unit includes a power supply circuit including a power supply board, a power supply cover that covers the power supply circuit, and a wireless communication unit that wirelessly communicates with an external controller;
the wireless communication unit outputs a lighting condition of the light source unit to the power supply circuit in response to a signal received from the controller;
The power supply cover has a top wall portion and a side wall portion extending from a periphery of the top wall portion to a front side and having a notch portion, and is attached to the power supply base plate;
a portion of the wireless communication unit is exposed to the outside through the cutout of the power supply cover and is supported by the side wall of the power supply cover;
the power supply base plate includes a support plate that supports the power supply board and the wireless communication unit;
The edge of the notch is shaped to follow the outer edge of the support plate,
The support plate fits into the recess.
Lighting equipment. The side wall portion has a folded portion folded back from an edge of the notch portion.
The lighting device according to any one of claims 1 to 4 . The folded portion is folded back toward the inside of the power supply cover.
6. The lighting device according to claim 5 . The folded portion is folded back to the outside of the power supply cover.
6. The lighting device according to claim 5 . The folded portion is folded inward and outward of the power supply cover.
6. The lighting device according to claim 5 .

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