JP7429951B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting device that includes an arm member that is attached to construction materials.

As a lighting device, a light source base plate to which a light source unit is attached to the front surface, a power source base plate to which the power source unit is attached to the back side, and both ends of the light source base plate and the power source base plate in the first direction are connected in the front and back direction. It has been proposed that the connecting member includes a pair of connecting members, in which a fixing part, a pair of mounting parts, and a bearing part are integrally formed by aluminum die casting (for example, Patent Document 1) .

JP 2016-100318 Publication

In the above-mentioned lighting device, the connecting member is formed by die-casting aluminum, so it is heavy. Note that if the weight is heavy, the mechanical properties required for the arm material, the connecting member, etc. will be high, leading to an increase in cost.
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.

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

According to the above configuration, since the connecting member is made of metal, it can be made lighter than a device using a connecting member molded by aluminum die-casting.

It is a perspective view of the lighting device concerning an embodiment, (a) is a figure seen from the front side, and (b) is a figure seen from the back side. FIG. 3 is a perspective view of the lighting device in an exploded state as seen from the front side. FIG. 3 is a perspective view of the lighting device in an exploded state as seen from the back side. FIG. 3 is a perspective view of a state in which some of the fins and the light source cover are removed from the light source base plate, viewed from the front side. FIG. 3 is a perspective view of a state in which some of the fins and the light source cover are removed from the light source base plate, as seen from the back side. FIG. 3 is a perspective view of the power supply cover, the insulating sheet, and the terminal unit removed from the power supply base plate, as seen from the back side. FIG. 3 is a perspective view of the power supply cover, the insulating sheet, and the terminal unit removed from the power supply base plate, as seen from the front side. (a) is an enlarged perspective view of the periphery of the connecting member as seen from the back side, and (b) is an enlarged perspective view of the periphery of the connecting member with the screws removed as seen from the back side. (a) is an enlarged perspective view of the vicinity of the front end of the connecting member viewed from the front side, (b) is an enlarged sectional view of the connecting member at an intermediate position in the second direction, and (c) is a screw thread of the connecting member. This is an enlarged cross section at the position. It is an enlarged cross-sectional view of a state cut at one end side in the first direction as seen from the inside side in the first direction, (a) is a perspective view seen from the back side, and (b) is a perspective view seen from the front side. It is. It is a figure explaining the position of the electric wire through-hole of a power supply base board, and the electric wire growth through-hole of a light source base board, and is a figure seen from the 1st direction.

<Summary>
A lighting device according to an aspect of the embodiment includes: a light source base plate to which a light source unit is attached to the front surface; a power source base plate to which the power source unit is attached to the back surface; A pair of connecting members that connect both ends of the direction in the front and back directions, and an arm member that is attached to the pair of connecting members and for attachment to construction materials, and the pair of connecting members are made of metal plates. ing.
In the lighting device according to another aspect of the embodiment, the power source base plate has a first bent portion bent toward the front side at both ends in the first direction, and the first bent portion faces the connecting member. Thereby, the power source 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 on the outer side in the first direction, and the power supply base plate is arranged at both ends in the first direction. The connecting member has a second bent portion bent toward the front side, and the connecting member is fixed by a fixture while being disposed between the first bent portion and the second bent portion. Thereby, the power source base plate and the connecting member can be firmly connected. Moreover, it 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 arcuate second through hole centered on the first through hole in a facing portion facing the arm member. The arm member is fixed to the opposing portion by a first fixture inserted through the first through hole and a second fixture inserted through the second through hole. Thereby, the arm member and the connecting member can be firmly connected, and the arm member can be firmly connected to the first direction.
In a lighting device according to another aspect of the embodiment, the first through hole has a circular shape, and the arm member has a fitting cylinder portion that fits into the first through hole. Thereby, the arm member can be easily aligned with respect to the connecting member. Further, the arm member can be smoothly rotated with respect to the connecting member.
In the lighting device according to another aspect of the embodiment, the arm member includes a construction-side fixing portion fixed to the construction material, and a construction-side fixing portion extending from both ends of the construction-side fixing portion in the first direction to the front side and connecting the connecting member. the construction side fixing part and the connection side fixing part have bent portions at both ends in a second direction orthogonal to the first direction, and the construction side fixing part has a A bent portion of the construction-side fixing portion and a bent portion of the connection-side fixing portion overlap at both end portions of the portion in the first direction. 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 has a through-hole for the electric wire. The hole is located between the ends of the front side of the connecting member in a direction perpendicular 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 located at the back side end of the connecting member. and is located between the ends in a direction perpendicular to the first direction and the front and back directions. Thereby, the electric wire becomes a shadow of the connecting member, and it is possible to protect the electric wire from intrusion of foreign objects from the outside of the lighting device.

<Embodiment>
1. As shown in FIGS. 1 to 3, the overall lighting device A pair of connecting members 5 that connect both ends of the power source base plate 4 in the first direction in the front and back directions, and an arm member 6 that is attached to the pair of connecting members 5 and for attachment to construction materials. The lighting device X here includes a heat dissipation unit 7 on the back surface of the light source base plate 2. Note that a direction perpendicular to the first direction and the front and back directions is referred to as a second direction.
Each configuration will be explained below.

2. Each configuration (1) Light source unit will be explained mainly using FIGS. 4 and 5.
The light source unit 1 includes, 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 attached to the light source base plate 2.
As shown in FIG. 4, the light source module 10 includes, for example, a rectangular light source board 13 that is long in the first direction, and a plurality of LED elements 14 mounted on the light source board 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 part 20 of the light source base plate 2 by screws 15, which are an example of a fixing device, that are inserted through the through holes (not shown) of the light source board 13 from the front side.

The light source cover 11 includes a covering part 111 that covers the light source module 10 from the front side, an extending part 112 extending outward from the periphery of the covering part 111 along the flat part 20 of the light source base plate 2, and an end edge of the extending part 112. The light source cover has a bent portion 113 that is bent from the side toward the back side.
The covering portion 111 has a rectangular thin plate shape that is long in the first direction.
The extending portion 112 has a rectangular shape whose outer periphery substantially 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 extending portion 112. A screw 16, which is an example of a fixture, is inserted through the through hole 112b and is screwed into the screw hole 201 of the flat portion 20. As shown in FIG. 9, the extending portion 112 has a bulging portion 112a that bulges toward the front side corresponding to the front contact portion 524 of the connecting member 5.
A plurality of light source cover bent portions 113 are provided along the periphery of the extending portion 112 at intervals. 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 projecting inward in the first direction on the bending tip side, and the convex portion 113a extends through the through hole of the bent portion 21 of the light source base plate 2, as shown in FIG. 210. The light source cover bent portion 113 is configured to be elastically deformable in the protruding direction of the convex portion 113a, making it easy to attach to the light source base plate 2.

(2) Heat dissipation unit This will be explained mainly using FIGS. 4 and 5.
The heat dissipation unit 7 is composed of a plurality of fins 71, and the plurality of fins 71 are attached to 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 includes a fixing part 710 and a pair of heat radiating parts 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 such that the main surface of the heat radiation part 711 is parallel to, for example, the first direction.
The fin 71 has a fin fitting portion 712 on the fixing portion 710 that fits with the light source base fitting portion 202 of the light source base plate 2 . Here, the light source base fitting part 202 is a convex part protruding to the back side, and the fin fitting part 712 is a through hole. In a state where the light source base fitting part 202 and the fin fitting part 712 are fitted, the fixing part 710 is fixed by spot welding, for example.
The heat dissipation section 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 fins 71, so that a thin metal plate (for example, 0.2 to 0.5 mm) can be used as the fins 71.
The heat dissipation part 711 has folded parts 711b folded back from three edges excluding the edge connected to the fixing part 710. This increases the rigidity of the heat dissipation section 711, so that a thin metal plate (for example, 0.2 to 0.5 mm) can be used as the fin 71. Note that the folded portion 711b here is folded back within the same fin 71 to the side opposite to the side where the other opposing heat radiating section 711 exists, but it may be folded back to the side where the heat radiating section 711 exists. However, it may be folded back on both sides.

(3) Light source base plate This will be explained mainly using FIGS. 4 and 5.
The light source base plate 2 has a rectangular flat portion 20 that is long in the first direction, and bent portions 21 and 22 that are bent from the edge of the flat portion 20 to the back side. 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 back surface of the flat portion 20, respectively. The light source cover 11 is attached to the bent portion 21 perpendicular to the first direction.
The flat part 20 includes 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 part 202 for fitting with the fin fitting part 712 of the fin 71, It has a through hole 203 and the like 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 at the edge of the short side of the flat portion 20 and is therefore referred to as the short bent portion 21, and the bent portion 22 parallel to the first direction is provided on the edge of the short side of the flat portion 20. Since it is provided at the end edge of the long side of 20, it is referred to as a long bent portion 22. In addition, when it is not necessary to distinguish between the short bent portion 21 and the long bent portion 22, they are referred to as bent portions 21 and 22.
The bent portions 21 and 22 have a through hole 210 into which the convex portion 113a of the light source cover bent portion 113 of the light source cover 11 engages (see FIG. 10).
As shown in FIGS. 4 and 5, the short bent portion 21 has an intermediate portion in the second direction that protrudes to the back side, and has an abutment portion 211 that abuts the connecting member 5 at the center of the protruded portion. The contact portion 211 is referred to as a light source base contact portion 211 to distinguish it from other contact portions to be described later. This allows the contact area to 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 bent portion 21 in a state where the light source base contact portion 211 is in contact with the connecting member 5. Here, a screw 29 is used for fixing, and the fixing part is constituted by a screw hole 212.
As shown in FIG. 10, the short bent portion 21 has a through hole 213, in which the locking portion 523 of the connecting member 5 locks, straddling the end of the flat portion 20 in the first direction. The through hole 213 is provided approximately at the center of the short bent portion 21 in the second direction. Thereby, the design quality can be improved. Moreover, the weight balance in the second direction can be improved.

(4) Power supply unit This will be explained mainly using FIG. 6.
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 constructed 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 connection to a commercial power source. The power supply unit 3 includes a wireless communication unit 34 for wirelessly communicating with an external controller.
Note that if there is no need for 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 constituted by 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 in a spaced manner. The power supply circuit 30 generates lighting power from a commercial power supply and adjusts the lighting power according to instructions from the wireless communication unit 34.
Note that the plurality of electronic components 303 are illustrated 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 the electric wire connected to the terminal unit 33. Note that the power supply board 301 is attached to the power supply base plate 4 using screws 309 that pass through spacers 307, which will be described later.
The insulating sheet 32 is formed by bending a sheet main body 320 made of an insulating resin material into a cylindrical shape, and a power supply circuit 30 is disposed inside the sheet main body 320 . The insulating sheet 32 includes a through hole 321 for a spacer 307 for arranging the power supply board 301 at a distance 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 sheet body 320 has a notch 325 for an electric wire (including signal and power supply wires) that electrically connects the wireless communication unit 30 and the wireless communication unit 34 .

The power supply cover 31 includes a box-shaped cover body 310 with an open surface, and a power supply cover bent portion 311 that is bent outward from the opening edge of the cover body 310 (for example, outward in the second direction). The power supply cover 31 is made of, for example, a curved 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 stand up from the periphery of the top wall portion 310a on the front side.
The cover main body 310 has a reinforcing protrusion 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 protruding portions 310d. This increases the rigidity of the surface of the power supply cover 31, so that a thin metal plate (for example, 0.2 to 0.5 mm) can be used as the power supply cover 31.
Note that the side wall portion 310b may also have a protruding portion. The protruding portion 310d extends along the first direction, and there are a plurality of protrusions in the second direction on the top wall portion 310a. The protruding portion 310d protrudes to the outside of the cover body 310, but may protrude inward, or may protrude both inside and outside. Further, the protruding portion may extend in the second direction. This can contribute to further increasing the rigidity of the power supply cover 31 compared to the case where the protrusion portion 310d is provided only on the top wall portion 310a.

One side wall portion 310c provided at 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 attachment member 333 inside the power supply cover 31 in the assembled state. 310f, a through hole 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 a screw hole 333a of the terminal block mounting member 333. A notch 310g for the wireless communication unit 34 is provided in the side wall 310c.
The cover main body 310 has a folded part 310j folded back from the front edge of the side wall parts 310b and 310c. This can contribute to increasing the rigidity of the power supply cover 31. Note that the folded portion 310j may be folded inward, outward, or both inside and outside.
The cover main body 310 has a folded portion 310k folded back from an edge forming a notched portion 310g of one side wall portion 310c. This can contribute to increasing the rigidity of the power supply cover 31. Note that the folded portion 310k may be folded inward, outward, or both inside and outside.
The power supply cover bent portions 311 are provided at both ends of one side wall portion 310c in the first direction. A through hole 311 a is provided in the power supply cover bent portion 311 , and a screw 318 inserted through the through hole 311 a is screwed into a screw hole 401 in the flat portion 40 of the power source 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 inside the power supply cover 31. In addition, when installing 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 are inserted into the through holes 333b and 333c of the terminal block mounting member 333. Fit together. Note that the terminal block mounting member 333 has a U-shaped cross section and is elongated in the front and back directions.
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 that is open on the side facing the side wall 310c of the power supply cover 31 and the front side, and has an opening for electric wires (here, a through hole 332a) on the end face perpendicular to the first direction. It is provided.

The wireless communication unit 34 is supported by the power supply cover 31 and the like by attaching the power supply cover 31 to the power supply base plate 4 while fitting into the notch 310g of the power supply cover 31. The wireless communication unit 34 is 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 lighting conditions to the power supply circuit 30, or when a plurality of lighting devices X are controlled by one controller, the received signal is automatically transmitted. A wireless module that determines whether or not the device is connected is housed in the communication case 341.

(5) Power supply base board This will be explained mainly using FIGS. 6 and 7.
The power source base plate 4 has a rectangular flat portion 40 that is elongated in the first direction, and bent portions 41 and 42 that are bent from the edge of the flat portion 20 to the back side. Here, since the bent portion 41 perpendicular to the first direction is provided at the edge of the short side of the flat portion 400, it is referred to as the short bent portion 41, and the bent portion 42 parallel to the first direction is provided at the edge of the short side of the flat portion 400. Since it is provided on the edge of the long side of 40, it is 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 and 42.

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 to the flat portion 20 by the connecting member 5 while facing the flat portion 20 from the front and back. 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. Note that the spacer may be constructed as a separate cylindrical body that is not integrated with the power source base plate 4.
The flat part 40 has a screw hole 403 (see FIG. 7) for a screw 309 for fixing the power circuit 30 (power supply board 301), and a screw hole 403 for fixing a terminal block mounting member 333 for attaching the terminal unit 33. It has a through hole 402 (see FIG. 7), a screw hole 401 for a screw 318 that fixes 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.
The flat portion 40 has one or more protruding portions 405 as shown in FIG. 7 . Here, the protruding portion 405 extends along the first direction. The flat portion 40 has one protruding portion 405 approximately at the center in the second direction. Thereby, the flat portion 40 is reinforced. The protrusions 405 protrude on the front side, but may protrude on the back side, or if there are a plurality of protrusions, they may protrude on both sides. Note that the protruding portion 405 may extend along the second direction.

The power supply base plate 4 has a notch 44 for the arm member 6 in the flat part 40. The notch portion 44 is provided at both ends of the flat portion 40 in the first direction and approximately at the center in the second direction. The power source base board 4 has an upright portion 45 that is erected on the back side of the flat portion 40 in a portion facing the notch 44 by using the notch 44 . The surface of the upright portion 45 opposite to the notched portion 44 faces or abuts the outer surface of the side wall portion 310b of the power supply cover 31. Thereby, movement of the power supply cover 31 in the first direction can be restricted.

As shown in FIGS. 6 and 7, the short bent portion 41 has an intermediate portion in the second direction that protrudes toward the front side, and the protruded portion has an abutment portion 410 that comes into contact with the connecting member 5. Note that the contact portion 410 corresponds to an example of the first bent portion of the present invention. For convenience, the abutting portion 410 is defined as a power base abutting portion to distinguish it from other abutting portions. The power supply base contact portions 410 are located on both sides of the notch portion 44 in the second direction. Thereby, the design quality can be improved. Moreover, the weight balance in the second direction can be improved. Note that the power source base abutting portion 410 abuts the outer surface of the power source side abutting portion 530 of the connecting member 5 . The outer surface is a side opposite to the side where the pair of connecting members 5 face each other, and is a surface located on the outside in the first direction.
The power source base plate 4 has a fixing portion in the power source base abutting portion 410 for fixing the connecting member 5 in a state in which the connecting member 5 abuts the power source base abutting portion 410. Here, a screw 49, which is an example of a fixture, is used for fixing, and the fixing part is constituted by a through hole 410a or a screw hole through which the screw 49 is inserted.

As shown in FIG. 7, the power source base plate 4 has bent portions 46 that are bent toward the front side on both sides of the notched portion 44 in the second direction. The bent portion 46 corresponds to an example of the second bent portion of the present invention. The bent portion 46 is bent toward the front side with respect to the notched 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 portion 46 is formed at a distance from the short bent portion 41 in the first direction. The connecting member 5 is fixed with screws 49 with the back end of the connecting member 5 being 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 portion of the connecting member 5 is supported (abutted) by the power supply base plate 4 from both sides in the first direction, and wobbling in the first direction can be reduced.

(6) Connection member This will be explained mainly using FIGS. 2 and 3, 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 steel plate, etc. 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 includes a main body portion 50 and bent portions 51 that are bent inward in the first direction from both end edges of the main body portion 50 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 of the main body 50, and a power source side connecting portion 53 connected to the power source base plate 4 at the back end of the main body 50. has. Further, the connecting member 5 has an arm fixing portion 54 on the back end side of the main body portion 50 to which the arm member 6 is fixed.

(6-1) Main Body The main body 50 has a dimension in the second direction that is larger on the back side than on the front side. Thereby, the power supply side connecting part 53 and the arm fixing part 54 can be provided in a compact manner at the back end of the connecting member 5.
When viewed from the first direction, the main body portion 50 has a trapezoidal shape with the apex side of an isosceles triangle having an apex on the front side missing. 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 contacts 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. In order to distinguish the abutting portion 520 from other abutting portions, the abutting portion 520 will be referred to as a “light source side abutting portion” for convenience.
Here, 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 bent portion 21, as shown in FIG. The light source side abutting portion 520 abuts between a pair of light source cover bent portions 113 provided apart from each other in the second direction on the light source cover 11 .
To fix the light source base plate 2, as shown in FIG. 8, screws 29, which are an example of a fixing device, are used, and the fixing portion is configured with a through hole or a screw hole for the screw 29. Here, there are two through holes 521 spaced apart in the second direction.

As shown in FIG. 10, the light source side connecting portion 52 has a locking portion 523 that engages the short bent portion 21 from the front side using the through hole 213 of the short bent portion 21 of the light source base plate 2. Good too. The locking portion 523 is the front end of the main body portion 50 and is folded back from the center in the second direction toward the short bent portion 221 side of the light source base plate 2 (inner side in the first direction here). Note that 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 contacts the end in the first direction of the flat portion 20 of the light source base plate 2 from the front side. The abutting portion 524 will be referred to as a “front abutting portion” for convenience in order to distinguish it from other abutting portions. The front contact portions 524 are located 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.
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, as shown in FIG. 9(a). This prevents dust, moisture, insects, etc. 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 base plate 2, and the inner end of the front contact portion 524 in the first direction is It comes into contact with or comes close to the outer surface of the peripheral wall 111a of the covering part 111.
Note that the light source side connecting portion 52 has the locking portion 523 and the front contact portion 524, so that even if the screw 29 comes off, the light source base plate 2 can be prevented from falling.

(6-3) Power supply side connection part The power supply side connection part 53 is connected to at least a contact part 530 (see (b) of FIG. 10) that is close to or in contact with the power supply base contact part 410 of the power supply base plate 4. A fixing portion is formed on the contact portion 530 and fixes the power source base plate 4. For convenience, the abutting portion 530 will be referred to as a “power supply side abutting portion” to distinguish it from other abutting portions.
Here, the power supply side contact portion 530 contacts the inner surface of the power supply base contact portion 410, as shown in FIG. The power supply side contact portions 530 are provided spaced apart in the second direction. Thereby, 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 increasing in size. Moreover, the power source base plate 4 and the light source base plate 2 can be connected in a well-balanced manner.
To fix the power source base plate 4, as shown in FIG. 8, screws 49 are used as an example of a fixing device, and the fixing portion is constituted by a through hole or a screw hole for the screw 49. Here, there are two screw holes 531 spaced apart in the second direction. Note that the screw hole 531 is formed by, for example, burring.
As shown in FIGS. 8 and 10, the power source side connecting portion 53 is screwed with the power source side contact portion 530 disposed between the power source base contact portion 410 of the power source base plate 4 and the bent portion 46. 49.

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

(6-4) Arm Fixing Part The arm fixing part 54 has a contact part 540 that faces or comes into contact with the arm member 6, and a first through hole 541 and a second through hole 542 provided in the contact part 540. are doing. The abutting portion 540 will be referred to as an “arm side abutting portion” for convenience in order to distinguish it from other abutting portions.
As shown in FIGS. 8 and 10, the arm-side contact portion 540 is formed in a region approximately at the center of the main body portion 50 in the second direction and extending from the back end to the center in the front and back directions. The inner surface of the arm-side contact portion 540 contacts the arm member 6.
To fix the arm member 6, screws 57 and 58, which are an example of a fixing device, are used. The screw 58 passes through the first through hole 541 and is screwed into the nut 633 of the arm member 6, and the screw 57 It is inserted through the through hole 542 and screwed into the nut 633 of the arm member 6. Note that 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.
The first through hole 541 has a circular shape, as shown in FIG. 8(b), and the fitting cylindrical portion 65 of the arm member 6 fits into the hole. The second through hole 542 has an arc shape centered on the first through hole 541 . Thereby, the arm member 6 can be rotated clockwise and counterclockwise about the center of the first through hole 541 as the rotation axis, and the irradiation direction of the illumination device X can be adjusted.
As shown in FIG. 8, the arm fixing portion 54 protrudes to the back side from the back end of the power supply side connecting portion 53. This increases the contact distance with the arm member 6 in the front and back directions.

(6-5) Bent part The bent part 51 extends in the front and back directions and reinforces 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. As shown in FIG. The back 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 This will be explained mainly using FIGS. 2 and 3.
The arm member 6 has a construction side fixing part 61 fixed to the construction material, and a connection side fixing part 63 extending from both ends of the construction side fixing part 61 in the first direction to the front side and fixed to the connection member 5. . When viewed from the second direction, the arm member 6 has a U-shape with an open front side.
The construction side fixing part 61 and the connection side fixing part 63 have bent parts 61a and 63a at both ends in the second direction. Thereby, the arm member 6 is reinforced. The bent portion 61a of the construction-side fixing portion 61 and the bent portion 63a of the connection-side fixing portion 63 overlap each other at both ends of the construction-side fixing portion 61 in the first direction. Note that here, the bent portion 61a of the construction-side fixing portion 61 is located outside the bent portion 63a of the connection-side fixing portion 63 in the second direction.
The connection-side fixing part 63 has a first through hole and a second through hole 631 at the front end at intervals in the front and back directions. Note that 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 part 63 has a fitting cylinder part 65 whose inside is inserted into the first through hole of the connecting side fixing part 63 . The fitting cylinder portion 65 has a cylindrical shape, and fits into the first through hole 541 of the connecting member 5, as shown in FIG. 8(b).
In the connection side fixing part 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 a fixture (screws 57, 58 (see FIG. 8(a))) for fixing the connecting member 5 and the arm member 6.
In the assembled state, the front side portion of the connection side fixing portion 63 of the arm member 6 is located within the notch portion 44 of the power source base plate 4. Thereby, compared to the case where the arm member 6 is fixed to the outer surface of the connecting member 5, the amount of overhang in the first direction can be reduced.

3. Position of the electric wire between the power source unit and the light source unit The electric wire that electrically connects the light source unit 1 and the power source unit 3 is located on the back side of the connecting member 5 when viewed from the first direction in FIG. In other words, when looking at the connecting member 5 from the first direction, the through hole 203 for the electric wire of the light source base plate 2 is located at the front end of the connecting member 5 and between the ends in the second direction ("L1" in FIG. 11). The through hole for the electric wire in the power source base plate 4 (not shown in the figure because the cable bush 35 is inserted in FIG. 7) is located at the back end of the connecting member 5 and is located in the second direction. (between "L2" in FIG. 11).
The through hole here refers to the center position of the through hole, and as shown in FIG. Located on the edge. Thereby, the electric wire passing through the electric wire through hole 203 of the light source base plate 2 and the electric wire through hole of the power source base plate 4 is routed within the range of L1 and L2. Thereby, the main body portion 50 of the connecting member 5 can prevent the electric wire from being interfered with 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 made. Further, the embodiment and a modified example, or a combination of modified examples may be used.
Further, even if there are examples not described in the embodiments or modified examples, or there are design changes within a range that does not depart from the gist, the present invention includes them.

<Modified example>
1. In the embodiment, the arm member 6 is fixed to the inner surface of the connecting member 5, but the arm member 6 may be fixed to the outer surface of the connecting member 5.
When fixing the arm member 6 to the outer surface of the connecting member 5, the bent portion 63a of the connecting side fixing portion 63 of the arm member 6 needs to be formed so as to be bent outward in the first direction. This increases the number of overhanging parts, which may impair operability when fixing to construction materials.
Further, when fixing the arm member 6 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 to be bent inward in the first direction, the bent portion is connected to the light source side. It is not possible to stretch the portion 52 to the front end, 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, the notch 45 does not need to be provided in the power supply base plate 4.

2. In the embodiment, the arm member 6 is disposed within the notched portion 45 of the power source base plate 4, but the power source base plate 4 may have a structure without the notched portion 45. However, by arranging the arm member 6 within the chipped portion 45, it also functions as a restricting portion when the arm member 6 is rotated relative to the power supply base plate 4 (connecting member 5), so a restricting structure is purposely provided. There will be no need.

3. In the embodiment, the bending direction of the bending portion 63a of the connection-side fixing portion 63 of the arm member 6 and the bending direction of the bending portion 51 of the connection member 5 are the same, but the bending direction and the bending direction are different. It may be the direction. However, the dimensions in the first direction can be made smaller if they are oriented in the same direction.
In particular, by making the bending direction and the bending direction the inner side of the first direction, making the outer surface of the arm member 6 contact the inner surface of the connecting member 5, and disposing the arm member 6 in the notch part 45 of the power supply base plate 4, The outer surfaces of the connecting member 5, arm member 6, and power source base plate 4 can be made flush.

4. In the embodiment, a pattern is illustrated in which 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 parallel to the power base contact portion 410). In such a case, for example, a pattern can be exemplified in which the connecting member 5 is fixed with a screw while being sandwiched between the bent portion and the power source base abutting portion 410.
A preferred pattern is such that 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 is fixed with 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 through which the body of the screw passes.
With this configuration, even if the lighting device X swings to both sides in the first direction while the arm member 6 is fixed to a construction material such as a ceiling, the connecting member 5 and the power supply base plate 4 can be firmly fixed. .

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. 410 and is bent from the inner surface of the main body part 50 of the connecting member 5 in a state where it is spaced apart from the main body part 50. It may be sandwiched between two parts.

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

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

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

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

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

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

Claims (7)

a light source base plate on which a light source unit is attached;
A power supply base board with a power supply unit attached to the back,
a pair of connecting members that connect both ends of the light source base plate and the power source base plate in the first direction in the front and back directions;
an arm member attached to the pair of connecting members and for attachment to construction materials,
The pair of connecting members are made of metal plates ,
The power source base plate has a first bent portion bent toward the front side at both ends in the first direction, and a first bent portion bent toward the front side at both ends in the first direction, and an inner side in the first direction with respect to the first bent portion at both sides in the first direction. and a second bent portion bent toward the front side at a spaced apart position,
The first bent portion faces a surface of the connecting member located on the outside in the first direction,
The connecting member is arranged between the first bent part and the second bent part and fixed by a fixture.
lighting equipment. a light source base plate on which a light source unit is attached;
A power supply base board with a power supply unit attached to the back,
a pair of connecting members that connect both ends of the light source base plate and the power source base plate in the first direction in the front and back directions;
an arm member attached to the pair of connecting members and for attachment to construction materials,
The pair of connecting members are made of metal plates ,
The power supply base board includes a flat part on which the power supply unit is mounted, a notch part provided in the flat part for arranging the arm material, and both ends of the flat part in the first direction. a first bent portion bent toward the front side at the portion and located on both sides of the notched portion in a second direction perpendicular to the first direction;
the first bent portion faces the connecting member;
The outer surface of the arm member contacts the inner surface of the connecting member.
lighting equipment. The power supply base plate has an upright portion standing on the back side at a portion of the flat portion that intersects with the first direction, which is a portion facing the chipped portion;
The lighting device according to claim 2 , wherein the upright portion faces or abuts a power supply cover of the power supply unit . The connecting member has a first through hole and an arcuate second through hole centered on the first through hole in a facing portion facing the arm member,
Any one of claims 1 to 3, wherein the arm member is fixed to the opposing portion by a first fixture inserted through the first through hole and a second fixture inserted through the second through hole. 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 member has a fitting cylinder portion that fits into the first through hole. The arm member has a construction-side fixing part fixed to the construction material, and a connection-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 connection member. death,
The construction side fixing part and the connection side fixing part have bent parts at both ends in a second direction perpendicular to the first direction,
According to any one of claims 1 to 5, a bent portion of the construction-side fixing portion and a bent portion of the connection-side fixing portion overlap at both end portions of the construction-side fixing portion in the first direction. Lighting device as described. The light source unit and the power supply unit are electrically connected by an electric wire,
When looking at the connecting member from the first direction, the through hole for the electric wire of the light source base plate is located at the front end of the connecting member and is located between the ends in the direction perpendicular to the first direction and the front and back directions. Claims 1 to 6, wherein the through hole for the electric wire of the power supply base plate is located at a rear end of the connecting member and between the ends in a direction perpendicular to the first direction and the front and back directions. The lighting device according to any one of the above.

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