JP2005293964A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily match a reflector to a remote control light reception circuit in a luminaire in which a lighting circuit and the remote control light reception circuit are mounted on the same circuit board provided on the lower surface of a body and the reflector for covering the lower surface is provided. <P>SOLUTION: In the luminaire, the lighting circuit 3, such as a high-frequency inverter, and the remote control light reception circuit 4 are mounted on the same circuit board (printed circuit board) 2 provided on the lower surface of the body 1 made of metal, and the reflector 5 made of metal for covering the lower surface is provided. Then, a window hole 6 is provided on the reflector 5 opposite to the remote control light reception circuit 4, a cover 7 made of an insulating resin in a concave shape is arranged at the side of the remote control light reception circuit 4 in the window hole 6 by an appropriate means, such as fitting, and at least a remote control light reception hole 8 is provided on the bottom surface of the cover 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lighting fixture provided with a lighting circuit and a remote control light receiving circuit.

A lighting fixture provided with a lighting circuit such as a high-frequency inverter and a remote control light receiving circuit for controlling the lighting circuit is disclosed in, for example, Patent Document 1, a lighting circuit is provided on the lower surface of the main body, and a remote control light receiving circuit is a reflector that covers the lighting circuit. And so on.
JP 2001-135133 A

  However, since separate circuit boards must be prepared for the lighting circuit and the remote control light receiving circuit, the cost is likely to increase, and if possible, it is desired to reduce the cost by mounting both on the same circuit board. However, the lighting circuit and the remote control light receiving circuit have different circuit component heights, and the lighting circuit such as an inverter has tall components such as large choke coils, large electrolytic capacitors, and power semiconductor elements. Since the circuit is composed of short parts such as a remote control light receiving element or light receiving module or a board mounting switch, if the height of the reflector is set to match the tall parts that make up the lighting circuit, the reflector and The light receiving circuit is too far away. Even if the remote control light receiving hole is formed on the reflecting plate, the light receiving angle is too narrow, and even if the hole for operating the switch is formed on the reflecting plate, the switch operating part does not reach the hole. Become. In view of such a problem to be solved, the present invention provides a lighting apparatus in which a lighting circuit and a remote control light receiving circuit are mounted on the same circuit board provided on the lower surface of the main body, and a reflecting plate that covers those lower surfaces is provided. And a remote control light receiving circuit.

  To summarize the present invention, in a lighting fixture in which a lighting circuit and a remote control light receiving circuit are mounted on the same circuit board provided on the lower surface of the main body and a reflective plate is provided to cover the lower surface, the reflective plate faces the remote control light receiving circuit. A lighting fixture is provided in which a window hole is provided, a cover having a shape recessed into the remote control light receiving circuit side is disposed in the window hole, and at least the remote control light receiving hole is provided on the bottom surface of the cover.

  According to the present invention, a cover having a shape recessed into the remote control light receiving circuit side is disposed in a window hole provided in the reflection plate so as to face the remote control light receiving circuit, and at least the remote control light receiving hole is provided on the bottom surface of the cover, thereby By matching the plate and the remote control light receiving circuit, the light receiving angle by the remote control light receiving hole provided on the bottom surface of the cover can be expanded.

  Next, an embodiment of the present invention will be described. However, this is merely an exemplary embodiment adopted based on the present invention, and the present invention should not be limitedly interpreted based on matters specific to the embodiment. The technical scope of the present invention should be determined based on the matters shown in the claims of the claims and matters substantially equivalent to the matters.

  In the illustrated embodiment, a lighting circuit 3 such as a high-frequency inverter and a remote control light receiving circuit 4 are mounted on the same circuit board (printed circuit board) 2 provided on the lower surface of a metal main body 1 and covers the lower surface thereof. It is a lighting fixture provided with a reflector 5. Then, a window hole 6 is provided in the reflecting plate 5 so as to face the remote control light receiving circuit 4, and an insulating resin cover 7 having a shape recessed into the remote control light receiving circuit 4 is fitted into the window hole 6 by an appropriate means such as fitting. And at least a remote control light receiving hole 8 is provided on the bottom surface of the cover 7. A light receiving element 81 is mounted on the circuit board 2 corresponding to the remote control light receiving hole 8. Further, a support leg 9 protruding upward from the cover 7 is in contact with the circuit board 2, and the vicinity of the lower edge of the cover 7 is in contact with the upper edge of the window hole 6. Further, an insulating plate 12 provided on the lower surface of the main body 1 through a hole 11 of the circuit board 2 with a support leg 10 projecting upward from the cover 7 (the main body 1 when the insulating plate 12 is not present at the location) The lower edge of the cover 7 is in contact with the upper edge of the window hole 6. Further, the support leg 9 is provided so as to protrude upward from the vicinity of the outer edge of the cover 7, and the output lead wire 13 of the lighting circuit 3 is disposed outside the support leg 9.

  According to the above configuration, the cover 7 having a shape recessed into the remote control light receiving circuit 4 is disposed in the window hole 6 provided in the reflection plate 5 so as to face the remote control light receiving circuit 4, and at least the remote control light reception is provided on the bottom surface of the cover 7. By providing the hole 8, the reflecting plate 5 and the remote control light receiving circuit 4 can be matched, and the light receiving angle by the remote control light receiving hole 8 provided on the bottom surface of the cover 7 can be enlarged. Further, the cover 7 can be easily held between the circuit board 2 and the upper edge of the window hole 6 by the support legs 9. Further, the cover 7 can be easily held between the lower surface of the insulating plate 12 (or the main body 1) and the upper edge of the window hole 6 by the support legs 10. Further, the output leg 13 of the lighting circuit 3 can be prevented from entering the upper portion of the cover 7, that is, the installation position of the remote control light receiving circuit 4 by the support leg 9, thereby preventing induction noise jumping to the remote control light receiving circuit 4 that handles weak signals. Cheap.

  Next, a hole 15 is provided on the bottom surface of the cover 7 so that a push button type switch operation unit 14 related to the remote control light receiving circuit 4 can face, and a display 16 corresponding to the switch operation unit 14 is provided on the reflection plate 5. . Thereby, since the display 16 corresponding to the switch operation unit 14 is provided on the reflector 5, the display 16 is easy to see and does not need to be displayed on the recessed bottom surface of the cover 7, and can be easily printed by laser printing or the like.

  More specifically, the main body 1 is fixed to the lower surface of the ceiling 17 by appropriate means, and the circuit board 2 is supported to the lower surface of the insulating plate 12 fixed to the lower surface of the main body 1 by appropriate means. The reflector 5 is fixed to the main body 1 with a screw (not shown), and a socket 18 to which the output lead wire 13 of the lighting circuit 3 is connected is disposed near one side thereof. The socket 18 is supported by the main body 1 by appropriate means. Yes. A fluorescent lamp 19 is connected to the socket 18. A glove (not shown) is detachably attached to the lower surface of the main body 1.

The perspective view at the time of decomposition | disassembly which shows embodiment of this invention Same part bottom view Partial sectional view during assembly Expanded bottom view of the same part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Circuit board 3 Lighting circuit 4 Remote control light receiving circuit 5 Reflector plate 6 Window hole 7 Cover 8 Remote control light receiving hole 81 Light receiving element 9 Support leg 10 Support leg 11 Hole 12 Insulating board 13 Output lead wire 14 Switch operation part 15 Hole 16 Display

Claims (4)

  A lighting circuit and a remote control light receiving circuit are mounted on the same circuit board provided on the lower surface of the main body, and in a lighting fixture provided with a reflection plate covering the lower surface, a window hole is provided in the reflection plate facing the remote control light reception circuit, A lighting fixture in which a cover having a shape recessed into the remote control light receiving circuit is disposed in the window hole, and at least the remote control light receiving hole is provided on the bottom surface of the cover.   2. The lighting apparatus according to claim 1, wherein the support leg protruding upward from the cover is in contact with the circuit board, and the lower edge of the cover is in contact with the upper edge of the window hole.   3. The support leg according to claim 1 or 2, which protrudes upward from the cover, passes through the hole of the circuit board and abuts against an insulating plate provided on the lower surface of the main body or the lower surface of the main body, and a window near the lower edge of the cover. A lighting fixture in contact with the upper edge of the hole.   4. The lighting fixture according to claim 2, wherein the support leg is provided so as to protrude upward from the vicinity of the outer edge of the cover, and the output lead wire of the lighting circuit is disposed outside the support leg.

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