Lighting fixtures

Abstract

To provide a workability of a lighting fixture.SOLUTION: A lighting fixture includes a light source unit 1 having a bottom plate 42 to which a light source is attached, and a top plate 41 arranged to face the bottom plate 42. The top plate 41 is provided with a terminal block 81 having an electric power line connection part 811 to which an electric power line is connected, and an electric power circuit board 22 which supplies an electric power to the light source unit 1.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a lighting fixture.

Background Art

[0002] Conventionally, so-called high-ceiling lighting fixtures that are installed in buildings with high ceilings such as gymnasiums and halls and illuminate the lighting space from above are known (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, a lighting device for supplying power to a light source is provided on the top plate of the main body of the lighting fixture of Patent Document 1. This lighting device includes a lighting circuit, a lighting device case that houses the lighting circuit, and a terminal block provided on the lighting device case.

[0005] In the configuration of the lighting fixture of Patent Document 1, when assembling the lighting fixture, after attaching the lighting circuit, terminal block, etc. in the lighting device case, the lighting device case is assembled to the top plate. Therefore, before assembling the lighting device case to the top plate, it is necessary to perform wiring of the lighting circuit, terminal block, and wiring of the power supply unit, etc. in the lighting device case in advance. From this, when assembling the lighting device case to the top plate, there is a risk that wiring cables, etc. are sandwiched between the lighting device case and the top plate.

[0006] Therefore, an object of the present disclosure is to provide a lighting fixture with improved workability.

Means for Solving the Problems

[0007] To achieve the above objective, a lighting fixture according to one embodiment of the present disclosure comprises a light source unit having a bottom plate to which a light source is attached, and a top plate arranged opposite to the bottom plate, wherein the top plate is provided with a terminal block having a power line connection portion to which power lines are connected, and a power supply circuit board that supplies power to the light source unit. [Effects of the Invention]

[0008] This configuration improves the ease of installation of lighting fixtures. [Brief explanation of the drawing]

[0009] [Figure 1] A perspective view of the lighting fixture according to this embodiment, seen from above. [Figure 2] A perspective view of the lighting fixture according to this embodiment, seen from below. [Figure 3] A side view of the lighting fixture according to this embodiment. [Figure 4] A plan view of the heat dissipation section according to this embodiment, seen from above. [Figure 5] A perspective view of the power supply unit from above. [Figure 6] Figure 5 shows the power supply cover removed. [Figure 7] Figure 6 shows the power supply block removed. [Figure 8] Figure 7 shows the insulating case removed. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described in detail below with reference to the drawings. The following description of preferred embodiments is essentially illustrative and is not intended to limit the present invention, its applications, or its uses in any way.

[0011] <Structure of lighting fixtures> In the following explanation, the up / down, left / right, and front / back directions of the lighting fixture will be defined using the up / down, left / right, and front / back arrows shown in Figure 1.

[0012] As shown in FIG. 1, the lighting fixture according to the present embodiment includes a light source unit 1, a power supply unit 2, a heat dissipation unit 3, a holding unit 4, an arm 6, a wireless communication unit 7, and a terminal block unit 8.

[0013] The power supply unit 2 supplies power to the light source unit 1.

[0014] The heat dissipation unit 3 dissipates heat from the light source unit 1 respectively.

[0015] The holding unit 4 holds the light source unit 1. The holding unit 4 has a top plate 41, a bottom plate 42, a pair of first support portions 43, and a pair of second support portions 44. The light source unit 1 is attached to the lower surface of the bottom plate 42. The pair of first support portions 43 and the pair of second support portions 44 support the top plate 41 and the bottom plate 42 in a state where the upper surface of the bottom plate 42 faces the lower surface of the top plate 41.

[0016] The power supply unit 2 is attached to the upper surface of the top plate 41. The heat dissipation unit 3 is attached to the upper surface of the bottom plate 42.

[0017] The wireless communication unit 7 is configured to be able to perform wireless communication. For example, the wireless communication unit 7 is configured to be able to transmit and receive communication signals by wireless communication to a communication device (not shown) arranged outside.

[0018] The terminal block unit 8 is configured to be able to make electrical connections with an external power supply (not shown) and a dimming device (not shown). For example, power supply lines and dimming lines of an external power supply and a dimming device are connected to the terminal block unit 8. The terminal block unit 8 is attached to the upper surface of the top plate 41 and is arranged adjacent to the rear of the power supply unit 2.

[0019] (Light Source Unit) As shown in FIG. 2, the light source unit 1 has an LED (Light Emitting Diode) module corresponding to a light source, a cover 10, and a packing 11.

[0020] The LED module includes, for example, multiple LEDs and a mounting board 12. Each LED is, for example, a conventionally known package-type white LED. The mounting board 12 is made of a rectangular flat resin substrate. The mounting board 12 is fixed to the lower surface of the base plate 42, for example, by screws.

[0021] Multiple LEDs are mounted on the underside of the mounting board 12, arranged vertically and horizontally. A receptacle connector is also mounted on the underside of the mounting board 12. The receptacle connector is electrically connected to the electrodes (cathode and anode) of each LED via a wiring conductor formed on the underside of the mounting board 12.

[0022] The cover 10 is attached to the retaining part 4 so as to cover and conceal the LED module. The cover 10 is made of a light-transmitting synthetic resin material such as polycarbonate resin.

[0023] The cover 10 has a main body portion 101 and a flange portion 102. The main body portion 101 is formed in the shape of a flat rectangular box with an opening (not shown) on its upper surface. The flange portion 102 is formed integrally with the main body portion 101 so as to protrude outward from the periphery of the opening of the main body portion 101. That is, when the cover 10 is viewed from above, the flange portion 102 is formed in the shape of a rectangular frame. The cover 10 is attached to the retaining portion 4 by screwing this flange portion 102 to the bottom plate 42.

[0024] The packing 11 is substantially the same shape as the flange portion 102 and has a rectangular frame shape when viewed from above. The packing 11 is made of, for example, rubber or resin material. The packing 11 is interposed between the flange portion 102 of the cover 10 and the bottom plate 42 of the retaining portion 4. The packing 11 prevents dust or water droplets from entering the cover 10.

[0025] (heat dissipation part) As shown in Figures 1 to 4, the heat dissipation section 3 is composed of multiple heat dissipation fins 31. The multiple heat dissipation fins 31 are fixed to the upper surface of the bottom plate 42. The multiple heat dissipation fins 31 are arranged in a radial pattern when viewed from above (see Figure 4).

[0026] Each heat dissipation fin 31 is formed from a material with excellent thermal conductivity, such as aluminum or an aluminum alloy. Each heat dissipation fin 31 is formed into a roughly U-shape by bending a single rectangular aluminum plate. Specifically, each heat dissipation fin 31 has a base portion 311 and a pair of heat dissipation plates 312. The pair of heat dissipation plates 312 are formed to extend upward from both ends of the base portion 311 in the left-right direction.

[0027] The base portion 311 is formed in the shape of a roughly trapezoidal plate. The base portion 311 is also provided with a plurality of boss holes that penetrate in the thickness direction. The plurality of boss holes are provided along the longitudinal direction of the base portion 311. The bottom plate 42 of the holding portion 4 has a plurality of bosses corresponding to the plurality of boss holes 313 of the base portion 311. Each heat dissipation fin 31 is fixed to the bottom plate 42 by crimping the bosses of the bottom plate 42 with the plurality of bosses of the bottom plate 42 inserted into the plurality of boss holes 313 of the base portion 311.

[0028] In this way, the heat dissipation section 3 is formed by bending each individual heat dissipation fin 31 and is fixed to the bottom plate 42 by crimping. Therefore, compared to, for example, the entire heat dissipation section 3 being integrally formed from aluminum die casting, the heat dissipation section 3 can be made smaller and lighter.

[0029] (holding part) As described above, the holding section 4 includes a top plate 41, a bottom plate 42, a pair of first support sections 43, and a pair of second support sections 44.

[0030] The top plate 41 is formed in a substantially rectangular shape from a metal plate such as aluminum or an aluminum alloy. The top plate 41 has connecting parts 41a formed at the front center and rear center, and connecting parts 41b formed at the right center and left center.

[0031] Each bottom plate 42 is formed in a substantially rectangular shape from a metal plate with excellent thermal conductivity, such as aluminum or an aluminum alloy. Connecting portions 42a are formed on the bottom surface 42 at the front center and rear center, and connecting portions 42b are formed at the right center and left center.

[0032] The first support portion 43 and the second support portion 44 are formed, for example, by bending a single metal plate, such as a galvanized steel sheet.

[0033] The first support portion 43 has connecting portions 43a and 43b formed at both its upper and lower ends. The connecting portions 43a and 43b are formed by bending the upper and lower ends of the first support portion 43. The pair of first support portions 43 are arranged to face each other in the front-to-back direction. The first support portion 43 is connected by screws or the like, with the connecting portion 43a being connected to the connecting portion 41a of the top plate 41 and the connecting portion 43b being connected to the connecting portion 42a of the bottom plate 42.

[0034] The second support portion 44 has connecting portions 44a and 44b formed at both its upper and lower ends. The connecting portions 44a and 44b are formed by bending the upper and lower ends of the second support portion 44. The pair of second support portions 44 are arranged to face each other in the left-right direction. The second support portion 44 is connected by screws or the like, with the connecting portion 44a being connected to the connecting portion 41b of the top plate 41, and the connecting portion 44b being connected to the connecting portion 42b of the bottom plate 42.

[0035] The top plate 41 and the bottom plate 42 are fixed in place by this pair of first support parts 43 and the pair of second support parts 44.

[0036] (arm) As shown in Figure 1, the arm 6 is formed in a U-shape by bending a long metal plate, such as a galvanized steel plate, at both ends in the longitudinal direction at approximately right angles in the same direction.

[0037] The arm 6 has both longitudinal ends attached to a pair of second support parts 44. Specifically, through holes 61 and slits 62 are formed in both longitudinal ends of the arm 6. The pair of second support parts 44 also have screw holes (not shown) formed at positions corresponding to the through holes 61 and slits 62. The arm 6 and the second support parts 44 can be fixed together by fastening screws 52 and 53 to the respective screw holes formed in the second support parts 44 through the through holes 61 and slits 62.

[0038] Furthermore, with the screw 53 removed, the arm 6 can rotate in the front-rear direction along the slit 62, centered on the screw 52. Specifically, with the screw 52 fastened in the through hole 61, the irradiation direction of the lighting fixture can be adjusted, and after the irradiation direction of the lighting fixture is determined, the arm 6 and the second support part 51 can be fixed by fastening the screw 53 through the slit 62.

[0039] As described above, the arm 6 is connected to the second support part 44 by screws 52 and 53. The first support part 43 has a connecting part 43a that is connected to connecting parts 41a formed at the front and rear centers of the top plate 41, and a connecting part 43b that is connected to connecting parts 42a formed at the front and rear centers of the bottom plate 42. The second support part 44 is connected to connecting parts 41b formed at the left and right centers of the top plate 41 via a through hole 44a, and a connecting part 44b that is connected to connecting parts 42b formed at the left and right centers of the bottom plate 42. This configuration ensures that the load balance of the lighting fixture is stable.

[0040] The lighting fixture of this embodiment is installed on the ceiling of a building by tightening nuts onto a pair of suspension bolts that are inserted through bolt insertion holes in the arm 6. However, it is preferable that the lighting fixture of this embodiment is further supported by wires or the like so that it does not fall even if the arm 6 becomes detached from the suspension bolts.

[0041] (Wireless Communication Department) The wireless communication unit 7 includes an antenna unit and a light-receiving element. The antenna unit and the light-receiving element are formed on a circuit board. The circuit board is, for example, a printed circuit board.

[0042] The antenna section is, for example, a wiring pattern of a predetermined shape formed on a circuit board. The antenna section performs wireless communication using radio waves as a medium; specifically, the antenna section is configured to be capable of transmitting and receiving radio waves. The antenna section receives communication signals via radio waves from an externally located communication device (not shown). The antenna section also transmits communication signals via radio waves to an externally located communication device.

[0043] A light-receiving element is a light-receiving element (such as a photodiode or phototransistor) that receives infrared light. The light-receiving element performs infrared communication using infrared light as the medium. Specifically, the antenna receives infrared communication signals from an externally located communication device.

[0044] Examples of the above-mentioned communication devices include dimming devices that control the dimming of the lighting fixture, and various sensors such as motion sensors.

[0045] As shown in Figures 1 to 3, the wireless communication unit 7 is located outside the first support unit 43. Specifically, the wireless communication unit 7 is located in the central part of the first support unit 43 in the vertical direction.

[0046] (Power supply unit) As shown in Figure 5, the power supply unit 2 has a power supply cover 20 that houses the power supply block 21 inside. The power supply cover 20 is formed in the shape of a rectangular box with an opening 201 (second opening) on ​​the lower side. This power supply cover 20 is formed by bending a metal plate, such as a galvanized steel plate. Note that in Figures 5 to 8 shown below, some components and components are omitted as appropriate in order to explain the structure of the power supply unit 2.

[0047] (Power block) Figure 6 shows the power supply unit 2 with the power supply cover 20 removed. The power supply block 21 is mounted on the power supply circuit board 22 and has a power conversion circuit that converts power supplied from an external power source (for example, AC power supplied from a commercial power source) into the power required by the light source unit 1. This power conversion circuit includes, for example, a full-wave rectifier, a power factor correction circuit (boost chopper circuit), and a DC / DC converter (buck chopper circuit). The power supply block 21 is constructed by mounting numerous circuit components that constitute the power conversion circuit on the surface of the power supply circuit board 22, for example. The power supply block 21 also has an output cable with a plug connector at its end.

[0048] Figure 7 shows the power supply unit 2 with the power supply cover 20 and power supply block 21 removed. Below the power supply circuit board 22 on the lower side of the power supply block 21, an insulating case 23 is provided. The insulating case 23 is made of an electrically insulating material such as white transparent plastic such as Lumirror. The insulating case 23 has a rectangular insulating surface 231 and rising parts 232 formed to rise upward from each edge of the insulating surface 231. This insulating case 23 insulates the power supply block 21 from the top plate 41. Therefore, a short circuit between the high-voltage power supply block 21 and the top plate 41 can be prevented.

[0049] Two rectangular heat dissipation sheets 24, called "thercones," are placed on the upper side of the insulating surface 231 of the insulating case 23. By attaching these heat dissipation sheets 24 to the lower side of the power supply block 21, the gap between the power supply block 21 and the insulating case 23 is filled. As a result, the heat generated by the power supply block 21 is transferred to the insulating case 23 via the heat dissipation sheets 24.

[0050] Figure 8 shows the power supply unit 2 with the power supply cover 20, power supply block 21, and insulating case 23 removed. A chassis 25 is provided on the underside of the insulating case 23. This chassis 25 is made of a 0.5 mm thick metal plate with excellent thermal conductivity, such as iron or aluminum. The power supply block 21, insulating case 23, and heat dissipation sheet 24 are attached to the chassis 25 by screws. With the power supply block 21, insulating case, and heat dissipation sheet 24 attached to the chassis 25, the chassis 25 is screwed to the top plate 41. This places the power supply block 21 on the top plate 41.

[0051] As described above, the heat generated by the power supply block 21 is transferred to the top plate 41 via the insulating case 23 and chassis 25. This allows the top plate 41, which has a large surface area, to be used as a heat dissipation material, thereby improving the heat dissipation performance of the power supply block 21.

[0052] The output cable of the power supply block 21 is routed into the light source unit 1 through a through-hole (not shown) located in the center of the top plate 41 and a through-hole (not shown) located in the center of the bottom plate 42, from the opening 201 on the underside of the power supply cover 20. In other words, the output cable of the power supply block 21 extends downward in a substantially straight line from the opening 201 on the underside of the power supply cover 20 toward the light source unit 1. The output cable of the power supply block 21 is then electrically connected to the receptacle connector of the light source unit 1. These output cables and the receptacle connector are connected either directly or via another electrical cable.

[0053] (terminal block) As shown in Figures 5 and 6, the terminal block section 8 includes a power terminal block 8 and a dimming terminal block 82, and a terminal block cover 83 that houses the power terminal block 8 and the dimming terminal block 82 inside. The power terminal block 81 and the dimming terminal block 82 are provided on the top plate 41 with a gap between them in the left-right direction.

[0054] The power terminal block 81 is provided with three power line connection sections 811. Each power line connection section 811 is designed so that a power line (not shown) for receiving power from an external power source is inserted from the rear. By designing the power line connection section 811 so that the power line is inserted from the rear rather than from above, it is possible to prevent water, dust, etc. from entering the power line connection section 811. A connection release section 812 is provided at the top of each power line connection section 811. By inserting, for example, a flathead screwdriver into this connection release section 812, the connection between the power line connection section 811 and the power line is released.

[0055] The dimming terminal block 82 is provided with two signal line connection sections 821. These signal line connection sections 821 are designed so that signal lines (not shown) for inputting dimming control signals from external devices are inserted from the rear. By designing the signal line connection sections 821 so that signal lines are inserted from the rear rather than from above, it is possible to prevent water, dust, etc. from entering the signal line connection sections 821. A disconnection button 822 is provided above the signal line connection sections 821 of the dimming terminal block 822. By pressing this disconnection button 822, the connection between the signal line connection section 821 and the signal line can be released.

[0056] The power terminal block 81 and the dimmer terminal block 82 are covered by a terminal block cover 83. The terminal block cover 83 is formed in a roughly rectangular box shape with openings on the front and bottom.

[0057] (Power supply cover and terminal block cover) As described above, the power supply cover 20 houses the power supply block 21, and the terminal block cover 83 houses the power supply terminal block 81 and the dimming terminal block 82 (see Figures 5 to 8). The power supply cover 20 also houses a portion of the power supply terminal block 81 and the dimming terminal block 82 (specifically, the front ends of the power supply terminal block 81 and the dimming terminal block 82).

[0058] On both the left and right lower ends of the power supply cover 20, two flanges 202 are formed at intervals in the front-to-back direction. The power supply cover 20 is fixed to the top plate 41 by screwing these flanges to the top surface of the top plate 41.

[0059] The rear side of the power supply cover 20 has two openings: a power terminal block opening 203 and a dimmer terminal block opening 204 (first opening). Specifically, the power terminal block opening 203 is formed on the right side of the rear side of the power supply cover 20, and the dimmer terminal block opening 204 is formed on the left side (see Figure 5, etc.). When the power supply cover 20 is attached to the top plate 41, the rear of the power terminal block 81 is exposed through the power terminal block opening 203. Also, the rear of the dimmer terminal block 82 is exposed through the dimmer terminal block opening 204.

[0060] As shown in Figure 3, a terminal block cover 83 is provided at the rear of the power supply cover 20, protruding to the rear. The terminal block cover 83 is formed by bending a metal plate, such as a galvanized steel plate. Screw-fastening flanges 831 are provided on the upper and left sides of the terminal block cover 83. These screw-fastening flanges 831 are screwed to the power supply cover 20. In this way, the terminal block cover 831 is attached to the power supply cover 20.

[0061] As described above, the lighting fixture according to this embodiment comprises a light source unit 1 having a base plate 42 to which a light source is attached, and a top plate 41 arranged opposite to the base plate 42. The top plate 41 is provided with a power terminal block 81 (terminal block) having a power line connection part 811 to which power lines are connected, and a power circuit board 22 that supplies power to the light source unit 1.

[0062] According to the above configuration, the power terminal block 81 and the power circuit board 22 are provided on the top plate 41. Therefore, after attaching the power terminal block 81 and the power circuit board 22 to the top plate 41, wiring can be performed on the power terminal block 81, the power circuit board 22, and the light source unit 1, etc. Furthermore, after the wiring work to the power terminal block 81, the power circuit board 22, and the light source unit 1, etc., the power cover 20 and the terminal block cover 83 are attached to the top plate 41. Therefore, when attaching the power cover 20 to the top plate 41, the wiring will not move, and it is possible to prevent the wiring from being pinched between the power cover 20 and the terminal block cover 83 and the top plate 41. Consequently, the wiring work to the power terminal block 81, the power circuit board 22, and the light source unit 1, etc., and the attachment of the power cover 20 can be performed easily, improving the ease of installation of the lighting fixture.

[0063] Furthermore, the power line connection section 811 is provided so that the power line receiving external power is inserted from the rear (a direction different from the vertical direction (first direction) in which the bottom plate 42 and the top plate 41 face each other). By forming it so that the power line is inserted from the rear rather than from above, it is possible to prevent water, dust, etc. from entering the power line connection section 811.

[0064] Furthermore, the power supply cover 20 has a power terminal block opening 203 and a dimming terminal block opening 204 (first opening). The rear parts of the power terminal block 81 and the dimming terminal block 82 (part of the power terminal block 81) are exposed to the outside through the power terminal block opening 203 and the dimming terminal block opening 204, respectively. This allows signals and power to be supplied to the power supply block by forming connection parts for connecting power lines and dimming signal lines at the rear parts of the power terminal block 81 and the dimming terminal block 82, respectively.

[0065] Furthermore, the power supply cover 20 has an opening 201 (second opening) at the bottom (in the direction from the top plate 41 toward the bottom plate 42). In this way, the power supply cover 20 can cover the power supply block 21, the power supply terminal block 81, and the dimmer terminal block 82 simply by placing the power supply cover 20 over them from above.

[0066] Furthermore, the power supply circuit board 22 is attached to the top panel 41 via the chassis 25. This allows the power supply circuit board 22 to be attached to the chassis 25 first, and then the chassis 25 to be attached to the top panel 41. This allows the heat from the power supply circuit board 22 to be released to the outside via the chassis 25.

[0067] Furthermore, an insulating case 23 is placed between the power supply circuit board 22 and the top panel 41. This prevents short circuits between the power supply circuit board 22 and the top panel 41.

[0068] (Other embodiments) As described above, embodiments have been explained as examples of the technology disclosed in this application. However, the technology in this disclosure is not limited thereto and can be applied to embodiments that are modified, replaced, added, or omitted as appropriate.

[0069] For example, a spacer may be placed between the power supply circuit board 22 and the top plate 41, either in place of or together with the chassis 25. This spacer can be integrally formed with the top plate 41 by partially bending the top plate 41, for example. Furthermore, this spacer is not limited to being integrally formed with the top plate 41; it may also be mounted on and / or bonded to the power supply circuit board 22. In this way, an insulating distance can be achieved between the power supply circuit board 22 and the top plate 41 by placing the spacer. [Explanation of Symbols]

[0070] 1 Light source unit 2 Power supply units 21 Power Block 22 Power supply circuit board 3 Heat dissipation part 4 Holding part 6 Arms 81 Power terminal block 82 Dimming terminal block 83 Terminal block cover

Claims

1. A light source unit having a base plate on which a light source is attached, A top plate is positioned opposite the bottom plate, Equipped with, The aforementioned top plate has, A terminal block having a power line connection section to which power lines are connected, A power supply circuit board for supplying power to the light source unit is provided, The power supply cover further comprises the power supply circuit board and the terminal block, The power supply cover has a first opening formed therein. A portion of the terminal block is exposed to the outside through the first opening. The first opening extends to the end of the power supply cover in the direction from the top plate toward the bottom plate, A lighting fixture characterized by further comprising a terminal block cover that houses the aforementioned terminal block and has an opening formed on the side opposite to the side attached to the power supply cover.

2. A light source unit having a base plate on which a light source is attached, A top plate is positioned opposite the bottom plate, Equipped with, The aforementioned top plate has, A terminal block having a power line connection section to which power lines are connected, A power supply circuit board for supplying power to the light source unit is provided, A power supply cover that houses the power supply circuit board and the terminal block, A lighting fixture further comprising a terminal block cover that houses the terminal block and has an opening formed on the side opposite to the side attached to the power supply cover.

3. The lighting fixture according to claim 1 or claim 2, wherein the power line connection portion is configured to allow insertion of a power line that receives external power from a direction different from the first direction, which is the direction in which the bottom plate and the top plate face each other.

4. The lighting fixture according to any one of claims 1 to 3, characterized in that the power supply cover has a second opening in the direction from the top plate toward the bottom plate.

5. The lighting fixture according to any one of claims 1 to 4, wherein the power supply circuit board is mounted to the top plate via the chassis.

6. The lighting fixture according to any one of claims 1 to 5, wherein an insulating case is disposed between the power supply circuit board and the top plate.

7. The lighting fixture according to any one of claims 1 to 6, characterized in that a spacer is provided between the power supply circuit board and the top plate to form a gap between the power supply circuit board and the top plate.

8. The lighting fixture according to claim 7, wherein the spacer is formed integrally with the top plate.

9. The lighting fixture according to claim 7, wherein the spacer is mounted on the power supply circuit board.

10. The lighting fixture according to any one of claims 7 to 9, characterized in that the spacer is coupled to the power supply circuit board.

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