JP2013069553A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To aim at improvement of designability and improvement of workability at attachment and detachment of reflecting members.SOLUTION: When a reflecting unit 5 is pushed upward against a fixture body 3 so that the reflecting members 50 are housed in spaces between each two light source units 1, a spring part 61 of each attachment member 6 inserted into a through-hole 23 of an attachment pedestal 2 is pressed toward an inner side face of a side plate part 501 to be bent. And then, when the reflecting unit 5 is further pushed upward to have an engagement part 62 reach a position of an engaged part 502, the engagement part 62 gets engaged with the engaged part 502 of the side plate part 501 due to elastic force of the spring part 61 to enable the reflecting 5 attached to the fixture body 3. Therefore, improvement in designability and improvement in workability at attachment and detachment of the reflecting members can be aimed at, as compared with a conventional case in which reflecting members are screwed down to a fixture body.

Description

  The present invention relates to a lighting fixture.

  In recent years, lighting fixtures using light emitting diodes as light sources instead of conventional fluorescent lamps have been rapidly spreading. For example, in Patent Document 1, in a lighting fixture installed on a system ceiling formed by providing a ceiling panel between a plurality of ceiling bars suspended from a ceiling base, a light emitting diode is used as a light source instead of a fluorescent lamp. A lighting fixture with a light source unit is described. The conventional example described in Patent Document 1 includes a box-shaped instrument body attached between a pair of ceiling bars, a plurality of light source units housed inside the instrument body, and a substantially rectangular reflector that covers the lower surface of the light source unit. Is provided. The plurality of light source units and the reflecting plate are all attached to the instrument body by screwing.

JP 2010-118186 A

  By the way, when the reflecting member (reflecting plate) is screwed to the instrument main body as in the above-described conventional example, the design (designability) may be impaired if the screw for attaching the reflecting member is exposed. there were. In addition, when screwing from the side opposite to the opening side of the instrument body so as not to expose the screw, in order to attach or detach the reflecting member, the reflecting member must be removed from the instrument body after removing the instrument body from the ceiling. It takes a lot of work.

  This invention is made | formed in view of the said subject, and aims at improving the workability | operativity at the time of the improvement of the designability and the reflection member attachment or detachment.

  The lighting fixture of the present invention is a plurality of light source units that are each formed in a straight line to emit light, and a fixture main body that supports the plurality of light source units in a state where they are arranged in parallel with each other aligned in the longitudinal direction. One or a plurality of reflecting members disposed between the adjacent one or more sets of the light source units, each having a reflecting surface that reflects light emitted from the light source units, and fixed to the instrument main body on one end side; One or more elastic members provided with engaging portions on the other end side, and the reflecting member has one or more engaged portions with which the engaging portions are detachably engaged. Features.

  In this lighting fixture, it is preferable to include a connecting member that connects both ends of the plurality of reflecting members.

  In this lighting fixture, the reflecting member is formed in a bowl shape having an opening facing the fixture main body, the engaged portion is a hole provided in the reflecting member, and the engaging portion is It is preferable that the projection member includes a protrusion that engages with the engaged portion through the opening of the reflecting member.

  In this lighting apparatus, it is preferable that the engaging portion is located in a gap between the reflecting member and the light source unit.

  In this lighting apparatus, it is preferable that the engaging portion is inclined in the same direction as the reflecting surface of the reflecting member at a portion protruding from the hole to the outside of the reflecting member.

  The lighting fixture of this invention has the effect that the improvement of workability | operativity at the time of the improvement of designability and the attachment or detachment of a reflection member can be aimed at.

It is a disassembled perspective view which shows embodiment of the lighting fixture which concerns on this invention. It is a perspective view same as the above. It is sectional drawing abbreviate | omitted partially 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.

  As shown in FIG. 1, the lighting fixture of the present embodiment includes a plurality (eight in the illustrated example) of light source units 1, a mounting base 2, a fixture body 3, a frame body 4, a reflection unit 5, a lighting device 7, and the like. As shown in FIG. 3, the light source unit 1 includes a light source unit 10, a heat radiating member 11, an insulating member 12, a mounting member 13, a cover 14, and the like. The light source unit 10 includes a mounting substrate 100 formed in a long plate shape with an insulating material (for example, ceramic), and a plurality of light emitting diodes (hereinafter referred to as LED chips) 101 mounted on the surface of the mounting substrate 100. And a conductor (not shown) formed on the surface of the mounting substrate 100. A plurality of LED chips 101 are mounted on the central portion (the central portion in the short direction) of the mounting substrate 100 in a line along the longitudinal direction at equal intervals and in a straight line, and are translucent and mixed with a fluorescent material. The synthetic resin sealing member 102 is sealed. That is, a part of the light emitted from the LED chip 101 (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) By mixing, the light emitted from the light source unit 10 becomes white light as a whole.

  The heat radiating member 11 is formed in a long flat plate shape, and the main piece 110 on which the light source unit 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 rises in a direction approaching the light source part 10 from the main part 120 interposed between the main piece 110 of the heat radiating member 11 and the light source part 10, and both ends (both ends along the longitudinal direction) of the main part 120. The contact portion 121 and a pair of reflecting portions 122 protruding from the tip of each contact portion 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 portion 10 serves as a reflecting surface and reflects light emitted from the light source portion 10 downward. Although not shown, in the state where the insulating member 12 is placed on the main piece 110 of the heat radiating member 11, a long hole through which the protrusion provided on the main piece 110 of the heat radiating member 11 is inserted. A shaped insertion hole passes through the center of the main portion 120.

  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 receptacle connector 16 includes a connection terminal portion 160 to which an electric wire (not shown) electrically connected to the conductor of the light source portion 10 is connected, and a connector connection portion 161 to be inserted into a plug connector (not shown). Have. The plug connector is connected to the lighting device 7 via an electric wire, and the plug connector is plugged into the receptacle connector 16 so as to be freely inserted and removed. That is, when the plug connector and the receptacle connector 16 are plugged in, the lighting device 7 and the light source unit 10 are electrically connected, and the light source unit 10 is supplied with power from the lighting device 7 to emit light (lights up). It is.

  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 cover 14 is formed in a long rectangular box shape with a light-transmitting synthetic resin material such as acrylic resin or polycarbonate resin, and houses the light source unit 10, the heat radiating member 11, the insulating member 12, and the mounting member 13 therein. In this way, it is attached to the heat radiating member 11.

  The mounting base 2 has a rectangular flat plate-shaped base portion 20, a reinforcing piece 21 bent and raised from the periphery of the base portion 20, and a pair of fixed pieces 22 protruding upward from the peripheral edge of the base portion 20. It is integrally formed by a plate. The fixing piece 22 is provided at the center in the short side direction (left and right direction in FIG. 1) of the base part 20, and a screw hole 221 is provided in a flat part 220 bent outward. In addition, a rectangular insertion hole 23 through which an elastic member (attachment member 6) to be described later is inserted is provided in a portion of the base portion 20 near each fixed piece 22. As shown in FIG. 1, the light source unit 1 is screwed to the pedestal 20 so that two of the light source units 1 are arranged along the short direction on both sides of the insertion hole 23.

  The instrument body 3 is formed by integrally forming a rectangular plate-shaped body portion 30 and a side wall portion 31 bent and raised downward from the periphery of the body portion 30 by a metal plate such as a steel plate. The main body 30 has a bolt insertion hole 32 through which a pair of mounting bolts (not shown) embedded in the ceiling are inserted, and a nut is tightened on the mounting bolt inserted into each bolt insertion hole 32. Can be attached to the ceiling. The main body 30 is provided with an introduction hole 33 through which a power line (not shown) wired on the ceiling is introduced, and a power terminal block 34 to which the power line introduced from the introduction hole 33 is connected is attached. It has been.

  The lighting device 7 is fixed to both ends of the main body 30, and the power line and the lighting device 7 are connected to each other via a power terminal block 34 by an unillustrated electric wire. The lighting device 7 includes a metal case in which a power conversion circuit that converts AC power supplied via a power line or electric wire into DC power is stored. A plug connector (not shown) provided at the tip of an electric wire (not shown) led out from the case of the lighting device 7 is plugged into the receptacle connector 16 of each light source unit 1 and connected to the lighting device via the electric wire. DC power is supplied from 7 to each light source unit 1.

  As shown in FIG. 2, the frame body 4 includes a pair of first side frame portions 40 facing along the longitudinal direction of the light source unit 1 and a pair of second side frames facing each other along the short direction of the light source unit 1. The part 41 is assembled in a rectangular frame shape. Further, on the inner side of the second side frame portion 41, a reflecting plate 42 that is inclined from the bottom to the top toward the light source unit 1 is disposed. Screw holes (not shown) are provided at the four corners on the upper surface side of the frame 4, and screws (not shown) inserted into the screw insertion holes 30 </ b> A penetrating through the four corners of the main body 30 are provided. The instrument main body 3 and the frame body 4 are joined by screwing into each screw hole.

  The reflection unit 5 includes a plurality (three in the illustrated example) of reflection members 50 and a pair of connection members 51 that connect the reflection members 50 to each other. The reflecting member 50 is formed by integrally forming a reflecting portion 500 having a substantially V-shape when viewed from the longitudinal direction and a pair of side plate portions 501 that protrude upward from both end edges along the longitudinal direction of the reflecting portion 500. . However, the side plate portion 501 is formed only in the central portion excluding both end portions in the longitudinal direction of the reflecting portion 500.

  The connecting member 51 is formed by integrally forming a rectangular main piece 510 and a pair of side pieces 511 bent upward from both end edges along the longitudinal direction of the main piece 510 by a metal plate such as a steel plate. . Then, the main pieces 510 of the connecting members 51 are joined to both end portions of the three reflecting members 50 by an appropriate method such as welding. At this time, the three reflecting members 50 are arranged at equal intervals and in parallel.

  Incidentally, a plurality (four in the illustrated example) of attachment members (elastic members) 6 are disposed on the main body portion 30 of the instrument main body 3 in order to attach the reflection unit 5. The attachment member 6 includes a fixing portion 60 screwed to the main body portion 30, a spring portion 61 bent and raised from an end portion of the fixing portion 60, and a protrusion (engaging portion) protruding from the tip of the spring portion 61 in a substantially U shape 62) are integrally formed by bending a single metal plate (see FIG. 3).

  On the other hand, a pair of holes (engaged portions 502) with which the engaging portions 62 of the mounting member 6 are detachably engaged are provided in pairs at both ends in the longitudinal direction of the side plate portions 501 of the respective reflecting members 50. Thus, when the reflection unit 5 is pushed upward with respect to the instrument body 3 so that the reflection member 50 fits in the space between the light source units 1, the spring of the attachment member 6 inserted into the insertion hole 23 of the attachment base 2. The portion 61 is pressed by the inner surface of the side plate portion 501 and bends. When the reflecting unit 5 is further pushed up and the engaging portion 62 reaches the position of the engaged portion 502, the engaging portion 62 engages with the engaged portion 502 of the side plate portion 501 by the elastic force of the spring portion 61. Thus, the reflection unit 5 can be attached to the instrument body 3. Further, the spring portion 61 is bent by pushing the tip of the engaging portion 62 engaged with the engaged portion 502 with a tool such as a flat-blade screwdriver, and the reflecting member 50 (the reflecting unit 50 is bent in a state where the spring portion 61 is bent). If 5) is pulled down, the engagement between the engaging portion 62 and the engaged portion 502 is released, and the reflecting unit 5 can be removed.

  As described above, in this embodiment, the reflection unit 5 (reflection member 50) is detachably attached to the instrument body 3 by the four attachment members (elastic members) 6 without removing the instrument body 3 from the ceiling. As a result, compared to the case where the reflecting member is screwed to the instrument body as in the conventional example, it is possible to improve the design and workability when attaching and detaching the reflecting member. Moreover, in the present embodiment, since the plurality of reflecting members 50 are connected by the connecting member 51, the workability at the time of attaching and detaching the reflecting member 50 is further improved as compared with the case where the reflecting member 50 is not connected. Can do.

  Further, in this embodiment, since the hole penetrating the side plate portion 501 of the reflecting member 50 is the engaged portion 502, there is no need to add new parts or the like as the engaged portion 502, and the engaged portion The cost for providing 502 can be suppressed. Further, a part of the engaging portion 62 protrudes outside the reflecting member 50 through the engaged portion 502 (see FIG. 3), but is located in a gap (space) between the reflecting member 50 and the light source unit 1. It is hard to stand out. Here, as shown in FIG. 3, the engaging portion 62 is inclined in the same direction as the reflecting surface of the reflecting member 50. Therefore, a part of the light emitted from the light source unit 1 is reflected downward by the portion of the engaging portion 62 that protrudes outside the reflecting member 50 through the engaged portion 502, so that the light of the light source unit 1 is efficiently used. The illumination space can be illuminated.

  In the present embodiment, eight light source units 1 are provided, but the number of light source units 1 is not limited to eight. Further, although two light source units 1 are arranged between the adjacent reflecting members 50, the number of the light source units 1 arranged between the adjacent reflecting members 50 may be one or three or more. Absent.

DESCRIPTION OF SYMBOLS 1 Light source unit 3 Instrument body 5 Reflection unit 6 Mounting member (elastic member)
50 Reflective member
62 Engagement part
501 Side plate
502 engaged part

Claims (5)

  A plurality of light source units each of which is formed in a straight line to emit light, an instrument body that supports the plurality of light source units arranged in parallel with their longitudinal directions aligned, and one or a plurality of adjacent sets One or a plurality of reflecting members disposed between the light source units and having a reflecting surface for reflecting light emitted from the light source unit, and fixed to the instrument main body on one end side and engaging portions on the other end side And the reflecting member has one or more engaged parts with which the engaging parts are detachably engaged.   The lighting fixture according to claim 1, further comprising a connecting member that connects both ends of the plurality of reflecting members.   The reflective member is formed in a bowl shape having an opening surface facing the instrument body, the engaged portion includes a hole provided in the reflective member, and the engaging portion passes through the opening of the reflective member. The lighting fixture according to claim 1, wherein the lighting fixture includes a protrusion that engages with the engaged portion.   The lighting apparatus according to any one of claims 1 to 3, wherein the engaging portion is located in a gap between the reflecting member and the light source unit.   The lighting apparatus according to claim 3, wherein a portion of the engaging portion that protrudes out of the reflecting member from the hole is inclined in the same direction as a reflecting surface of the reflecting member.

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