JP2012009393A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of dispensing with sockets coping with variations of an LED lamp and a fixture body which will be increased in the future.SOLUTION: The lighting fixture includes the sockets 2 detachably mounting bases 11, 12 of the LED lamp 1, adapters 3 mounted with the sockets 2, and the fixture body 4 for mechanically holding the sockets 2 through the adapters 3. Side plates 31 fixed to the fixture body 4 and having slits 31a as a fixing section are arranged on the adapters 3, and the adapters 3 can be fixed to the fixture body 4 by inserting respective mounting pieces 40a of mounting support sections 40 respectively arranged on both ends in a longitudinal direction of the fixture body 4 to respective slits 31a.

Description

  The present invention relates to a lighting apparatus using an LED lamp as a light source.

  Conventionally, many fluorescent lamps have been used as a light source for lighting fixtures installed indoors or outdoors. In general, a straight tube type fluorescent lamp is filled with a discharge gas, and a phosphor body is coated on the inner surface, and is provided at both ends in the longitudinal direction of the lamp body to connect to a power source. And a base having a pair of power supply terminals. Such a fluorescent lamp is attached to a socket by inserting each power supply terminal into a pin hole of a pair of sockets attached to the instrument body. Then, each power supply terminal of the fluorescent lamp is connected to a commercial power supply via a lighting device, so that the fluorescent lamp is supplied with lighting power and lit.

  In recent years, with the increase in luminous efficiency of LEDs (light emitting diodes), LED lamps with low power consumption and long life can be used as light sources for lighting fixtures. There is something like that. Such an LED lamp is configured to include, for example, a lamp body and a base similar to those of a conventional straight tube type fluorescent lamp so that it can be used with existing lighting equipment for fluorescent lamps. However, unlike a conventional fluorescent lamp, a substrate on which a plurality of LEDs are mounted on one surface is accommodated inside the lamp body. Thus, since the LED lamp can be attached to an existing lighting fixture for fluorescent lamps, it is not necessary to manufacture a new lighting fixture for the LED lamp.

JP 2009-43447 A

  By the way, in the conventional lighting equipment for fluorescent lamps, since the standards such as the shape and dimensions of the lamp body and the base of the fluorescent lamp are determined, the standard of the socket in which the fluorescent lamp is mounted is also determined. A socket for a fluorescent lamp is integrally provided with a structure for mounting the fluorescent lamp and a structure for mounting on the fixture body. Therefore, the fluorescent lamp can be detachably mounted only by attaching the socket to the fixture body of the lighting fixture.

  On the other hand, the appearance of an LED lamp as a light source for illumination as described above is very recent, and the standard of the LED lamp is not fixed like the conventional fluorescent lamp. For this reason, the shape and size of the lamp body of the LED lamp, the shape and size of the base, and the like vary depending on the manufacturer (manufacturer) that manufactures the LED lamp. Further, when the LED lamp is miniaturized as the output of the LED is increased, the shapes and dimensions of the lamp body and the base are changed according to the miniaturization.

  Therefore, it is not possible to use a conventional lighting fixture socket for fluorescent lamps, and it is necessary to prepare sockets having structures corresponding to various LED lamps. Furthermore, regarding the fixture body of the lighting fixture, there is a possibility of adopting a fixture main body having another form as well as a conventional fluorescent lamp fixture body. Therefore, it is necessary to prepare a socket having a structure corresponding to each instrument body, and as a result, it is necessary to separately prepare sockets corresponding to variations of LED lamps and instrument bodies that will increase in the future. There was a problem.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a lighting fixture that does not require separate provision of sockets corresponding to variations of LED lamps and fixture bodies that will increase in the future. To do.

  The lighting fixture of the present invention includes a socket to which a base of an LED lamp is detachably attached, an adapter to which the socket is attached, and a fixture main body that mechanically holds the socket via the adapter. Is provided with a fixing portion that is fixed to the instrument body.

  In this lighting fixture, the socket has a connection fitting electrically connected to a terminal provided on the base of the LED lamp, and the adapter is a conductive member provided on the connection fitting of the socket and the fixture body. It is preferable to have a connection means for electrically connecting the part.

  In this lighting fixture, the terminal provided on the base of the LED lamp is a grounding terminal, and the connecting means of the adapter grounds the grounding terminal to the fixture body via the connection fitting of the socket. Is preferred.

  In the present invention, unlike a conventional fluorescent lamp socket, a structure for mounting an LED lamp and a structure for mounting on an instrument body are provided separately as a socket and an adapter. Therefore, it is not necessary to separately prepare sockets corresponding to variations of LED lamps and instrument bodies that will increase in the future.

It is a figure which shows embodiment of the lighting fixture which concerns on this invention, (a) is a principal part perspective view before attaching a socket to an adapter, (b) is a principal part perspective view before attaching an adapter to an instrument main body, c) is a perspective view of an essential part after the adapter is attached to the instrument body. It is a figure which shows the attachment method to the adapter of a socket same as the above, (a) is a front view, (b) is the aa 'line sectional arrow view in (a). It is a perspective view which shows an LED lamp same as the above. It is a disassembled perspective view which shows the state before an assembly same as the above. It is a whole perspective view which shows the state which attached the LED lamp same as the above.

  Hereinafter, embodiments of a lighting apparatus according to the present invention will be described with reference to the drawings. In the following description, the vertical direction in FIG. 1A is defined as the vertical direction. In this embodiment, as shown in FIG. 1A, a pair (one in the figure) of sockets 2 to which a straight tube type LED lamp 1 is detachably attached, and an adapter 3 to which the socket 2 is attached, And an instrument body 4 that mechanically holds the socket 2 via the adapter 3.

  As shown in FIG. 3, the LED lamp 1 protrudes from a straight tube lamp body 10, caps 11 and 12 provided at both ends in the longitudinal direction of the lamp body 10, and the caps 11 and 12. It is composed of a pair of round bar-shaped power supply terminals 13 and a ground terminal 14. Although not shown, a substrate on which a plurality of LEDs are mounted is housed inside the lamp body 10, and the anode and cathode of these LEDs and each power supply terminal 13 are electrically connected. Thus, the LED lamp 1 is lit by supplying lighting power to each LED via the power supply terminal 13.

  As shown in FIG. 1 (a), the socket 2 is formed integrally with a socket body 20 having a box shape whose outer shape is formed in a U shape, and an adapter 3 which is formed on the upper end of the socket body 20 to be described later. It is comprised from the rectangular-plate-shaped base part 21 mounted in the outer periphery of the hole 30a. At the lower end of the socket body 20, the lower surface and the front surface (the front surface in FIG. 1A) are opened, and the head portion 14a of the grounding terminal 14 of the LED lamp 1 can be slidably inserted. An insertion recess 20a is provided. A pair of blade receivers 22 are provided inside the insertion recess 20a to mechanically hold the head portion 14a of the grounding terminal 14 therebetween. The blade receiver 22 is provided at the other end of an L-shaped connecting piece 23 having a grounding pin 24 provided at one end. These members are integrally formed from a metal plate made of a conductive material such as copper. The grounding pin 24 is provided so as to protrude downward from the base portion 21, and is inserted into a pin insertion hole 30 b of the adapter 3 described later when the socket 2 is attached to the adapter 3.

  Further, on both side surfaces of the socket body 20 in the short direction (left-right direction in FIG. 1A), protrusions 20b having a triangular cross section projecting outward are integrally formed. Here, the width dimension in the short direction of the socket body 20 is smaller than the width dimension in the direction of the mounting hole 30 a of the adapter 3. On the other hand, the width dimension in the short direction of the socket body 20 at the position where each protrusion 20b is provided is larger than the width dimension in the direction of the mounting hole 30a. However, the socket body 20 can be inserted into the mounting hole 30a by pressing each protrusion 20b against the inner periphery of the mounting hole 30a.

  In the above description, the socket 2 on the side to which the grounding terminal 14 is connected is described among the pair of sockets 2, but the structure of the other socket 2 is basically the same. However, in the other socket 2, the structure of the insertion recess 20 a and the blade receiver 22 is a structure for mechanically holding the power feeding terminal 13. Since the structure for mechanically holding the power supply terminal 13 is the same as the structure of a conventional fluorescent lamp socket and is well known in the art, a detailed description thereof is omitted here.

  As shown in FIG. 1A, the adapter 3 is formed by integrally forming a square main plate 30 and a pair of rectangular side plates 31 that protrude upward from two opposing sides of the main plate 30. . The main plate 30 is provided with a rectangular attachment hole 30a that penetrates in the thickness direction and allows the socket body 20 of the socket 2 to be inserted. Further, a circular pin insertion hole 30b that penetrates in the thickness direction and allows the grounding pin 24 of the socket 2 to be inserted is provided in the vicinity of the mounting hole 30a of the main plate 30.

  Each side plate 31 is provided with an elongated slit 31a cut out from one end edge in the longitudinal direction (the right end edge in FIG. 1A) to the other end edge (the left end edge in FIG. 1A). Yes. One end of each slit 31a in the longitudinal direction is opened, and an attachment piece 40a (described later) of the instrument body 4 can be slidably inserted from the opening. Therefore, each side plate 31 including each slit 31 a becomes a fixing portion fixed to the instrument body 4. In addition, the opening part of each slit 31a is each provided with the taper 31b in which the width dimension of an up-down direction becomes large as it goes outside. Thus, when the adapter 3 is attached to the mounting base 40, which will be described later, of the instrument body 4, the attachment pieces 40a can be inserted into the slits 31a along the respective tapers 31b. Can be installed.

  As shown in FIG. 4, the instrument body 4 is composed of a long box having an open bottom surface, and a central portion in the longitudinal direction of the top surface is located above the construction surface A such as a ceiling via an embedding hole A1. A circular wire insertion hole 4a is provided for passing the power supply line B1 hanging down. Moreover, on both sides of the wire body insertion hole 4a in the longitudinal direction of the upper surface of the instrument body 4, there are bolt insertion holes 4b for passing the suspension bolts B2 suspended from the upper side of the construction surface A through the embedded holes A1. Is provided. Further, in the vicinity of the electric wire insertion hole 4a inside the instrument body 4, a connector to which the power supply line B1 is connected and a circuit component 41 constituting a lighting device are provided. The lighting device converts AC power from a commercial power source (not shown) supplied via the power line B1 into DC power necessary for lighting the LED lamp 1, and the DC power is converted via the socket 2. The LED lamp 1 is supplied. Since such a lighting device is well known in the art, a detailed description thereof is omitted here.

  At both ends in the longitudinal direction of the instrument body 4, as shown in FIG. 4, mounting base portions 40 for mounting and fixing the adapter 3 are respectively provided. As shown in FIG. 1A, the mounting base 40 is formed, for example, by bending a metal plate into a U-shaped cross section, and a mounting piece 40a inserted into each slit 31a of the adapter 3 is integrally formed at the lower end edge thereof. Is formed. Thus, the adapter 3 is fixedly attached to the instrument body 4 by inserting the mounting pieces 40 a of the mounting base 40 into the slits 31 a of the adapter 3.

  Further, on both sides of the central portion in the longitudinal direction of the instrument main body 4, as shown in FIG. 4, attachment tools 42 for attaching the instrument main body 4 in the embedded hole A <b> 1 of the construction surface A are provided. Yes. The attachment 42 is made of, for example, a metal material, and a screw hole in which an internal thread portion (not shown) to which an attachment screw S for attaching a reflector 5 (described later) to the instrument body 4 is fastened is formed on the lower surface thereof. 42a is provided. In addition, a pair of support pieces 42 b are integrally formed on the fixture 42 so as to bend downward from both sides along the short direction of the instrument body 4. These support pieces 42b can be freely bent along the short direction of the instrument body 4. When the instrument body 4 is embedded in the embedded hole A1 of the construction surface A, the support pieces 42b are pushed by the inner peripheral edge of the embedded hole A1 and bend in a direction approaching each other. Thus, the instrument body 4 is fixed in the embedded hole A1 because the inner peripheral edge of the embedded hole A1 is pressed by the biasing force in the direction in which each support piece 42b returns.

  As shown in FIG. 4, the reflector 5 is made of, for example, an aluminum material, and is formed in a long box having a lower surface that opens and an opening area that increases toward the lower surface. The inner surface of the reflector 5 is painted with a reflecting material (not shown), thereby forming a reflecting surface that reflects light from the LED lamp 1 downward. In addition, rectangular socket insertion holes 5a for arranging the socket 2 inside the reflector 5 are provided at both ends in the longitudinal direction of the upper surface of the reflector 5 (one in the drawing). Further, a pair of circular screw insertion holes 5 b into which the mounting screws S are inserted are provided on the upper surface of the reflector 5 so as to correspond to the screw holes 42 a of the mounting tool 42.

  Hereinafter, the assembly method of the present embodiment will be described with reference to the drawings. First, as shown in FIGS. 2A and 2B, the lower end portion of the socket body 20 is inserted into the mounting hole 30 a of the adapter 3 from above, and the protrusions 20 b of the socket body 20 and the base portion 21 are connected to each other. The socket 2 is attached to the adapter 3 by sandwiching the periphery of the attachment hole 30a of the adapter 3 between them. At this time, the ground pin 24 of the socket 2 is inserted into the pin insertion hole 30 b of the adapter 3. Thus, the socket 2 is attached to the adapter 3 in the form as shown in FIG. Next, each slit 31a of the adapter 3 is inserted into each mounting piece 40a of the mounting base portion 40 of the instrument body 4 from the opening portion, and the adapter 3 is slid so as to be pushed in. Thus, the adapter 3 is fixedly attached to the mounting base portion 40 of the instrument body 4 in the form as shown in FIG. In the above description, the case where one socket 2 and adapter 3 are attached to one end in the longitudinal direction of the instrument body 4 has been described. Can be installed at the end.

  Next, as shown in FIG. 4, the power supply line B1 and the two suspension bolts B2 suspended from above the construction surface A are respectively connected to the wire insertion hole 4a and the pair of bolt insertion holes 4b of the instrument body 4. insert. And while connecting the power wire B1 to the connector of the circuit component 41 and tightening the nut N in the state which fitted the washer W to each suspension bolt B2 from the lower side of the instrument main body 4, the instrument main body 4 is attached to the construction surface A. It can be embedded in the embedded hole A1. Thereafter, each socket 2 is inserted into each socket insertion hole 5a of the reflector 5, and the mounting screw S is inserted into each screw insertion hole 5b of the reflector 5 and the screw hole 42a of the fixture 42, and tightened. The body 5 can be attached to the instrument main body 4, and the assembly of this embodiment is completed. And LED lamp 1 can be attached to this embodiment by attaching each base 11 and 12 of LED lamp 1 to each socket 2 (refer to Drawing 5).

  As described above, in this embodiment, the socket 2 is mechanically held by the instrument body 4 via the adapter 3. That is, unlike the conventional socket for fluorescent lamps, the structure for mounting the LED lamp 1 and the structure for mounting to the instrument body 4 are provided separately by the socket 2 and the adapter 3. For this reason, it is not necessary to prepare the conventional socket corresponding to the variation of the LED lamp 1 and the instrument main body 4 which will increase in the future.

  For example, consider a case where the existing LED lamp 1 is attached to an instrument body 4 having a different form from the existing instrument body 4. In this case, in the conventional socket in which the socket 2 and the adapter 3 are integrated, it is necessary to separately manufacture a socket corresponding to a new instrument body 4. On the other hand, if the socket 2 and the adapter 3 are separate bodies as in the present embodiment, only the adapter 3 corresponding to the new instrument body 4 needs to be manufactured separately, so there is no need to manufacture the socket 2 separately. Furthermore, if a plurality of types of sockets 2 can be attached to one type of adapter 3, the types of adapters 3 that need to be manufactured can be reduced, and the cost required for manufacturing can be reduced.

  By the way, each socket 2 has a blade receiver 22 as a connection fitting to which a power supply terminal 13 and a grounding terminal 14 provided in each base 11, 12 of the LED lamp 1 are electrically connected. The adapter 3 also has connection means for electrically connecting the blade receiver 22 of each socket 2 and a conductive portion (not shown) provided in the instrument body 4.

  In this embodiment, both the adapter 3 and the mounting base part 40 of the instrument main body 4 are formed from a metal material. For this reason, in the socket 2 on the side to which the grounding terminal 14 is connected, the blade receiver 22 and the grounding pin 24 and the grounding terminal 14 are electrically connected, and the grounding pin 24 is connected to the adapter 3 and the mounting base 40. And electrically connected. Thus, the adapter 3 and the mounting base 40 function as the connection means described above, and the grounding terminal 14 is grounded to the instrument body 4.

  In the present embodiment, the power supply terminal 13 is provided only on one base 11, but the power supply terminal 13 may be provided on each base 11, 12. Further, the ground terminal 14 of the other base 12 may be constituted by a dummy pin.

1 LED lamp 12 Base 2 Socket 3 Adapter 31 Side plate (fixed part)
31a Slit (fixed part)
4 Instrument body

Claims (3)

  A socket to which a base of an LED lamp is detachably mounted; an adapter to which the socket is attached; and an instrument main body that mechanically holds the socket via the adapter; A luminaire having a fixing portion to be fixed.   The socket includes a connection fitting to which a terminal provided on the base of the LED lamp is electrically connected, and the adapter electrically connects the connection fitting of the socket and a conductive portion provided on the fixture body. The lighting apparatus according to claim 1, further comprising connection means for connecting to the lighting device.   The terminal provided on the base of the LED lamp is a grounding terminal, and the connection means of the adapter grounds the grounding terminal to the instrument body via a connection fitting of the socket. Item 3. A lighting apparatus according to item 2.

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