JP2013157263A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire in which a housing space for electric cables for connecting a lighting device to each of light source portions can be spacious and thereby workability for electric cable connection is improved.SOLUTION: Input portions (receptacle connectors 16) of power supplied from a lighting device 4 are provided at one side end parts in a length direction of light source portions (light source units 1). As for the light source units 1 respectively arranged at both side ends in a length direction of a luminaire body in a length direction, an end part where the receptacle connector 16 is not arranged out of the end parts in the length direction is located closer to a central portion of the luminaire body in the length direction. As a result, since the input portions (the receptacle connectors 16) of the light source units 1 are respectively arranged at both side ends in the length direction of the luminaire body, a housing space for electric cables 6 for connecting the lighting device 4 to each of the light source units 1 can be more spacious as compared with a conventional one, and thereby workability for electric cable connection can be improved.

Description

  The present invention relates to a lighting fixture.

  As a conventional example, Patent Literature 1 discloses a ceiling-embedded lighting fixture that uses a straight tube fluorescent lamp as a light source. The conventional example described in Patent Document 1 includes an appliance main body attached to a suspension bolt on a system ceiling, a reflector attached to the appliance main body, and a lamp socket detachably connected to a base of a fluorescent lamp. The instrument main body has two main body portions each provided with a pair of lamp sockets at both ends, and a connecting member that couples the two main body portions in a state of being arranged in the longitudinal direction. That is, four fluorescent lamps are arranged side by side in the longitudinal direction and the lateral direction in the instrument body. Note that a lighting device (stabilizer) that supplies power to the fluorescent lamp via the lamp socket is attached to the fixture body, and the lighting device and the lamp socket are connected by an electric wire.

JP 2011-44391 A

  By the way, in the conventional example described in Patent Document 1, a total of four lamp sockets are concentrated and arranged at the central portion in the longitudinal direction of the instrument body. Therefore, the storage space of the electric wire which connects a lighting device and each lamp socket becomes narrow, and there existed a problem that the connection operation of an electric wire was difficult to perform.

  This invention is made | formed in view of the said subject, and aims at improving the workability | operativity of an electric wire connection.

  The lighting fixture of the present invention includes a long light source unit, a fixture main body that supports a plurality of the light source units arranged in the longitudinal direction, and a lighting device that supplies power to the light source unit to light it. An input portion of power supplied from the lighting device is provided at one end portion in the longitudinal direction of the light source portion, and the light source portions disposed at both ends in the longitudinal direction of the instrument body are provided at the end portions in the longitudinal direction. Of these, the end portion on which the input portion is not provided is arranged closer to the central portion in the longitudinal direction of the instrument body.

  In this lighting fixture, the lighting device is disposed near the longitudinal center of the fixture body, the lighting device and the input unit are connected by an electric wire, and the center of the fixture main body is longer than the longitudinal end. It is preferable that a part of the electric wire is fixed to the instrument body on the side close to the part.

  As for the lighting fixture of this invention, the said light source part arrange | positioned at the both ends of the longitudinal direction in an instrument main body is the longitudinal direction in the said instrument main body of the edge part in which the said input part is not provided among the edge parts of a longitudinal direction Since the input part of the light source part is arranged at both ends in the longitudinal direction of the instrument body, the lighting device and each light source part are connected as compared with the conventional example described in Patent Document 1. There is an effect that the storage space for the electric wire is widened and the workability of the electric wire connection can be improved.

Embodiment of the lighting fixture which concerns on this invention is shown, (a) is a top view of the main-body part of a fixture main body, (b) is a top view of the reflection member of a fixture main body. The same as above, (a) is a partially omitted side view, (b) is a bottom view. It is sectional drawing same as the above. It is sectional drawing abbreviate | omitted partially same as the above. It is the top view which a part of main body part in the same as above was omitted. It is a top view same as the above. It is the perspective view seen from the downward same as the above. It is the perspective view seen from the upper direction same as the above. It is a half sectional view same as the above. It is a wiring diagram same as the above. It is an exploded perspective view same as the above.

  Hereinafter, an embodiment in which the technical idea of the present invention is applied to a lighting fixture arranged on a ceiling will be described with reference to FIGS. However, although a light emitting diode is exemplified as the light source in the present embodiment, a light source other than the light emitting diode, for example, an organic electroluminescence element may be used.

  As shown in FIGS. 2 and 7, the lighting fixture of the present embodiment includes a plurality of (in the illustrated example, four) light source units (light source units) 1, a main unit 2 and a reflecting member 3, a lighting device 4, and the like. Is provided. As shown in FIG. 4, the light source unit 1 includes a light source 10, a heat radiating member 11, an insulating member 12, a mounting member 13, a cover 14, and the like. The light source 10 includes a mounting substrate 100 formed in an elongated plate shape with an insulating material (for example, ceramic), a plurality of light emitting diodes (hereinafter referred to as LED chips) mounted on the surface of the mounting substrate 100, and mounting. A conductor (not shown) or the like formed on the surface of the substrate 100 is included. The plurality of LED chips are mounted on the central portion of the surface of the mounting substrate 100 (the central portion in the left-right direction in FIG. 4) in a straight line at equal intervals along the longitudinal direction. These LED chips are sealed with a synthetic resin sealing member having translucency and mixed with a fluorescent material. That is, a part of the light emitted from the LED chip (for example, blue light) is wavelength-converted with a fluorescent material, and the wavelength-converted light (for example, yellow light) and the light that has not been wavelength-converted (blue light) are mixed. As a result, the light emitted from the light source 10 becomes white light as a whole.

  The heat dissipating member 11 is formed in a long flat plate shape, the main piece 110 on which the light source 10 is placed via the insulating member 12, and the main piece 110 from both ends (both ends in the longitudinal direction) of the main piece 110. A pair of side pieces 111 extending in the thickness direction are integrally formed of a material having high thermal conductivity (for example, an aluminum plate).

  The insulating member 12 has a flat plate portion 120 interposed between the main piece 110 of the heat radiating member 11 and the light source 10, and an abutment that rises in a direction approaching the light source 10 from both ends (both ends along the longitudinal direction) of the flat plate portion 120. The part 121 and a pair of reflecting parts 122 protruding from the tip of each contact part 121 are integrally formed as a synthetic resin molded body. The pair of reflecting portions 122 is inclined so as to open outward as the distance from the contact portion 121 increases, and the lower surface facing the light source 10 serves as a reflecting surface to reflect light emitted from the light source 10 downward. In the state where the insulating member 12 is placed on the main piece 110 of the heat radiating member 11, a long hole-like insertion hole 123 into which the protrusion 112 provided on the main piece 110 of the heat radiating member 11 is inserted is a flat plate. It penetrates through the center of the part 120. That is, the protrusion 112 inserted through the insertion hole 123 contacts the mounting substrate 100, and the heat generated by the LED chip is conducted from the mounting substrate 100 to the heat radiation member 11 through the protrusion 112 to be radiated.

  The attachment member 13 is formed in a substantially square shape by bending a metal plate such as a steel plate, and is fixed to the heat radiating member 11 while being accommodated between the side pieces 111. Further, a receptacle connector 16 is attached to the attachment member 13 using an attachment fitting 15. The mounting bracket 15 has a rectangular frame-shaped connector holding portion 150 that holds the receptacle connector 16 and is attached to the upper side of the mounting member 13.

  The receptacle connector 16 has a connection terminal portion to which an electric wire (not shown) electrically connected to the conductor of the light source unit 1 is connected, and two connector connection portions 160 into which the plug connector 41 is inserted. doing. The plug connector 41 is connected to the lighting device 4 via an electric wire, and the plug connector 41 is inserted and connected to the receptacle connector 16 so as to be freely inserted and removed. That is, when the plug connector 41 is plugged into the receptacle connector 16, the lighting device 4 and the light source unit 1 are electrically connected, and power is supplied from the lighting device 4 to the light source unit 1 so that the light source 10 emits light (lights up). It is. That is, in this embodiment, the receptacle connector 16 corresponds to the input unit of the light source unit 1.

  The cover 14 is formed of a light-transmitting synthetic resin material such as acrylic resin or polycarbonate resin into a long rectangular box shape having a bottom portion 140 and side portions 141 surrounding the bottom portion 140. Further, a plurality of engaging recesses in which a plurality of engaging protrusions (not shown) formed on the side piece 111 of the heat radiating member 11 are detachably engaged with the pair of side portions 141 along the longitudinal direction. (Not shown) is formed. The cover 14 is attached to the heat radiating member 11 so that the light source 10, the heat radiating member 11, the insulating member 12, and the mounting member 13 are accommodated therein, and the plurality of engaging protrusions of the heat radiating member 11 are engaged with the side portions. The heat dissipation member 11 is fixed by engaging with the recess.

  As shown in FIGS. 7, 8, and 9, the reflecting member 3 includes an upper bottom portion 30 that is substantially parallel to the ceiling surface, and a pair of side wall portions that project obliquely downward from an edge along the longitudinal direction of the upper bottom portion 30. 31 and a pair of terminal portions 32 projecting downward from the edge of the upper bottom portion 30 along the short direction. Then, the four light source units 1 are attached to the lower surface side of the upper bottom portion 30 by screwing the attachment member 13 to the upper bottom portion 30. However, these four light source units 1 are arranged in a state where two light source units 1 are arranged in a straight line along the longitudinal direction and the short direction.

  In addition, the upper bottom portion 30 of the reflecting member 3 is provided so that two through holes 33 into which the mounting bracket 15 and the receptacle connector 16 of the light source unit 1 are inserted are arranged in the short direction at both ends in the longitudinal direction. (See FIG. 1 (b)). Therefore, when the light source unit 1 is attached to the lower surface side of the upper bottom portion 30, the receptacle connector 16 of each light source unit 1 is disposed on the upper surface side of the reflecting member 3 (upper bottom portion 30) together with the mounting bracket 15 through the four through holes 33. (See FIG. 3).

  As shown in FIGS. 1, 3, and 4, the main body 2 includes a main portion 20 formed in a long square hook shape, and three main portions 20 disposed at both ends and the center in the longitudinal direction of the main portion 20. And a fixing portion 21. The main portion 20 has a bolt insertion hole 22 through which a pair of mounting bolts 300 arranged on the back of the ceiling are inserted, and a nut 301 is fastened to the mounting bolt 300 inserted through each bolt insertion hole 22. To be attached to the ceiling (see FIG. 11). In addition, an introduction hole 23 into which the power supply line 200 wired on the ceiling is introduced is provided on the bottom surface of the main portion 20 at substantially the center in the longitudinal direction. Further, a terminal block 24 to which the power line 200 introduced from the introduction hole 23 is connected is attached to the bottom surface of the main portion 20 (see FIG. 9).

  The fixed portion 21 is formed by integrally forming a square-shaped barrel portion 210 and a pair of leg portions 211 that protrude downward from both longitudinal ends of the barrel portion 210. In the body portion 210, two screw holes 214 pass through the bottom surface (lower surface), and a groove 212 is provided at the center in the longitudinal direction of the side wall. Then, the main portion 20 is fitted into the groove 212. The body portion 210 is provided with a pair of claws 213 that protrude toward the inside of the groove 212. On the other hand, holes (not shown) through which the pair of claws 213 are respectively inserted pass through the side surface of the main portion 20. In other words, the claw 213 engages with each hole on the side surface of the main portion 20, whereby the main portion 20 and the fixed portion 21 are coupled (see FIG. 3).

  The lighting device 4 includes a power conversion circuit that converts AC power supplied via a power line or an electric wire into DC power, and the like housed in a metal case. Here, since one lighting device 4 lights two light source units 1, two lighting devices 4 are required to light four light source units 1. And these two lighting devices 4 are attached to the main-body part 2 of an instrument main body. More specifically, the two lighting devices 4 are attached near the center in the longitudinal direction on the bottom surface of the main portion 20 of the main body 2 so as to be arranged in a line in the longitudinal direction across the terminal block 24 (FIG. 1). see a)).

  As shown in FIGS. 5 and 10, the lighting device 4 is provided with two output terminal portions 40 on one end side in the longitudinal direction, and a power supply terminal portion 41 and a signal terminal for dimming signal on the other end side in the longitudinal direction. A part 42 is provided. The power line 5 connected to the terminal block 24 is branched and connected to the power terminal portions 41 of the two lighting devices 4. Further, a plug connector 7 is provided at the tip of the electric wire 6 connected to the output terminal portion 40 of the lighting device 4. The signal terminal unit 42 includes an input terminal and a feed terminal, and an external signal line (not shown) is connected to the input terminal of the signal terminal unit 42 of one lighting device 4. Then, the signal line 8 is connected to the feed terminal of the signal terminal unit 42 to which the external signal line is connected and the input terminal of the signal terminal unit 42 of the other lighting device 4.

  Here, a part (fixed part 60) of the electric wire 6 is fixed to the main part 20 on the side closer to the center part than the end part in the longitudinal direction of the main body part 2 (see FIG. 5). Therefore, the end of the electric wire 6 relative to the portion fixed to the main portion 20, that is, the side where the plug connector 7 is provided is not restricted, and can be freely routed (see FIG. 11). However, a protective tube 61 is put on the tip of the fixed portion 60 of the electric wire 6.

  Next, with reference to FIG. 11, the construction procedure of the lighting fixture of this embodiment is demonstrated. A rectangular embedding hole 401 is provided in the ceiling 400 which is a mounting surface. However, the embedding hole 401 has the same shape and size as the embedding hole in a case where a lighting fixture using a straight tube fluorescent lamp as a light source is embedded.

  First, a pair of mounting bolts 300 disposed on the back of the ceiling are inserted into bolt insertion holes 22 provided in the main portion 20 of the main body 2 of the instrument body. The main body 2 of the instrument body is attached to the mounting bolt 300 by tightening the nut 301 to each mounting bolt 300 inserted through the bolt insertion hole 22. Then, the power line 200 is connected to the terminal block 24 of the main body 2.

  Here, one end of two strings 9 is bound to the reflecting member 3. Then, the other end of the two strings 9 is tied to the main body 2, whereby the reflecting member 3 is suspended from the main body 2 by the two strings 9. In a state where the reflecting member 3 is suspended from the main body 2, two plug connectors 7 are inserted and connected to each pair of receptacle connectors 16 exposed at both ends in the longitudinal direction on the upper surface side of the reflecting member 3. The At this time, since the electric wire 6 can be freely routed, the workability of the connection work between the receptacle connector 16 and the plug connector 7 can be improved.

  Subsequently, the reflecting member 3 is inserted into the embedding hole 401, and the mounting screws 36 are inserted from below into a plurality (six in the illustrated example) of screw insertion holes 35 provided in the upper bottom portion 30, respectively. Then, these mounting screws 36 are tightened into the screw holes 214 provided in the three fixing parts 21 of the main body part 2, whereby the reflecting member 3 is coupled to the main body part 2 and the instrument main body is assembled (FIG. 9). reference). As a result, the instrument body is embedded in the embedded hole 401 of the ceiling 400.

  As described above, in the present embodiment, the input portion (receptacle connector 16) for the electric power supplied from the lighting device 4 is provided at one end in the longitudinal direction of the light source portion (light source unit 1). And the light source unit 1 arrange | positioned at the both ends of the longitudinal direction in an instrument main body arrange | positions the edge part in which the receptacle connector 16 is not provided among the edge parts of a longitudinal direction near the center part of the longitudinal direction in an instrument main body. Is done. Therefore, since the input part (receptacle connector 16) of the light source unit 1 is disposed at both ends in the longitudinal direction of the instrument body, compared to the conventional example described in Patent Document 1, the electric wire connecting the lighting device 4 and each light source unit 1 The storage space of 6 can be widened, and the workability of wire connection can be improved.

1 Light source unit (light source part)
2 Body (Apparatus body)
3 Reflective member (equipment body)
4 lighting device
16 Input section (receptacle connector)

Claims (2)

  Supplied from the lighting device, comprising: a long light source unit; an instrument body that supports the plurality of light source units arranged in the longitudinal direction; and a lighting device that supplies power to the light source unit to light it. A power input unit is provided at one end in the longitudinal direction of the light source unit, and the light source unit disposed at both ends in the longitudinal direction of the instrument body is provided with the input unit among the end units in the longitudinal direction. A lighting fixture, wherein an end portion that is not provided is disposed closer to a central portion in a longitudinal direction of the fixture main body.   The lighting device is disposed near the center in the longitudinal direction of the appliance main body, the lighting device and the input unit are connected by an electric wire, and closer to the central portion than the end in the longitudinal direction in the appliance main body. The lighting apparatus according to claim 1, wherein a part of the electric wire is fixed to the apparatus main body.

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