JP2014112490A - Light fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light fixture that restrains increase in cost by reducing the number of components.SOLUTION: A lighting fixture A comprises: boards 22 on which LEDs 222 are mounted; and a fitting member 21 to which the boards 22 are attached. The fitting member 21 includes: a bottom surface 211b to which the boards 22 are attached; and caulking portions 211f for pressing the boards 22 against the bottom surface 211b side to fix them. In this configuration, the boards 22 can be attached to the fitting member 21 by the caulking portions 211f, and no screws are needed to attach the boards 22 to the fitting member 21. Accordingly, the number of components can be reduced, and increase in cost can be restrained.

Description

  The present invention relates to a lighting fixture.

  2. Description of the Related Art Conventionally, a ceiling-mounted lighting fixture that is attached to a ceiling has been provided (see, for example, Patent Document 1). This lighting fixture includes a horizontally long and long fixture main body, and a light source portion attached to the fixture main body using a locking member, and the light source portion is accommodated in a substantially central portion of the fixture main body. A housing recess is provided over the entire length. In addition, the light source unit covers the mounting member formed in a horizontally long and long shape, the plurality of substrates on which the plurality of light emitting elements are respectively mounted and attached to the lower surface of the mounting member, and the plurality of substrates. And a cover member attached to the attachment member. And the light source part assembled | attached integrally is attached to an instrument main body using a locking member in the state in which the one part was accommodated in the accommodation recessed part of the instrument main body.

JP 2012-3993 A

  In the luminaire shown in the above-mentioned Patent Document 1, since screws are used when attaching the substrate to the attachment member, the number of parts increases correspondingly and the cost is increased.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture that suppresses cost increase by reducing the number of parts.

  The lighting fixture of this invention is equipped with the board | substrate with which LED is mounted, and the attachment member to which a board | substrate is attached. The attachment member has an attachment surface to which the substrate is attached and a caulking portion that presses and fixes the substrate to the attachment surface side.

  This lighting apparatus preferably includes an elastic member interposed between the substrate and the caulking portion.

  Moreover, in this lighting fixture, the elastic member is preferably made of a sheet whose surface opposite to the substrate is a reflective surface.

  Further, in this lighting fixture, the substrate is in the shape of a rectangular plate, and a plurality of LEDs are mounted along the longitudinal direction of the substrate, the caulking portion is provided along the long side of the substrate, and the caulking portion is short of the substrate. It is also preferable that the substrate is fixed to the mounting member by bending the portion opposite to the side to the LED side.

  The board can be attached to the attachment member by the caulking portion provided on the attachment member, and the screw for attaching the board to the attachment member is unnecessary, so the number of parts can be reduced correspondingly and the cost increase can be suppressed. There is an effect that can be.

The principal part of the lighting fixture of this embodiment is shown, (a) is a perspective view, (b), (c) is a top view. It is an exploded perspective view same as the above. It is a whole perspective view same as the above. It is sectional drawing same as the above. It is sectional drawing which shows another principal part same as the above.

  Below, embodiment of the lighting fixture A is described with reference to FIGS. In the following description, unless otherwise specified, description will be made with the vertical and horizontal directions defined in the orientation shown in FIG. 4, and the direction perpendicular to the paper surface in FIG.

  The lighting fixture A of the present embodiment is a ceiling-mounted lighting fixture as shown in FIG. 4, and the fixture main body 1 that is attached to the ceiling material 100 by using the suspension bolts 200 and is attached to and detached from the fixture main body 1. And a light source unit 2 that can be freely attached.

  As shown in FIGS. 2 and 3, the instrument body 1 is formed into a flat box shape that is long and has an upper surface (a surface facing the ceiling material 100) opened by bending a sheet metal. On the opposite side (that is, the lower side), a rectangular recess 11 for accommodating the light source unit 2 is provided over the entire length of the instrument body 1. In addition, on both sides of the recess 11 in the left-right direction (width direction) of the instrument body 1, there are inclined surfaces 12, 12 that extend from the opening edge of the recess 11 and incline upward (toward the ceiling material 100) toward the outside. Each is provided (see FIG. 4).

  In addition, a plurality of holes (5 in FIG. 2) are provided in the bottom surface portion 111 of the recess 11 along the front-rear direction (longitudinal direction) for passing an electric wire, and further, a hole 111b for passing the suspension bolt 200 is provided. Two are provided on both sides in the front-rear direction. Further, end caps 3 are respectively attached to both ends of the instrument body 1 in the front-rear direction (see FIGS. 2 and 3).

  As shown in FIG. 2, the light source unit 2 includes a plurality of (two in FIG. 2) substrates 22, an attachment member 21 to which the substrates 22 are attached, and a cover member that is attached to the attachment member 21 so as to cover the substrates 22. 23, a power supply device 24 that supplies predetermined lighting power to the substrate 22, and a terminal block 25.

  The substrate 22 includes a printed circuit board 221 formed in a rectangular plate shape that is long in the front-rear direction, and a plurality of LEDs (light emitting diodes) 222 are disposed on one surface (the lower surface in FIG. 2) in the front-rear direction (longitudinal direction). Has been implemented along. In addition, a plurality of rectangular grooves 221a are provided along the front-rear direction on both long sides of the substrate 22 along the front-rear direction, as shown in FIGS. 1 (a) to 1 (c). This groove 221a is for releasing a caulking portion 211f described later, and is provided at a position corresponding to each caulking portion 211f.

  Further, a connector 223 for electrically connecting the power supply device 24 is mounted on one end (right end) of the substrate 22 on one side (right side in FIG. 2). An electric wire (not shown) is connected to the connector 223. By connecting the end of the electric wire to the power supply device 24, the substrate 22 and the power supply device 24 are electrically connected. Further, a power supply connector 224 is mounted on an end portion of each substrate 22 facing the adjacent substrate 22. Then, by connecting the connectors 224 and 224 of both the boards 22 and 22, power can be supplied from the board 22 on one side (right side in FIG. 2) to the board 22 on the other side (left side in FIG. 2).

  As shown in FIG. 2, the attachment member 21 is formed in a U shape by bending a sheet metal, and a bottom surface portion 211 formed in a long and rectangular plate shape, and a lateral direction (width) of the bottom surface portion 211. Direction) and a pair of side surface portions 212 extending in the vertical direction (direction orthogonal to the bottom surface portion 211). A concave portion 211 a for accommodating the substrate 22 is provided in the substantially central portion of the bottom surface portion 211 over the entire length. In addition, an inclined portion 212a that is inclined in a direction away from each other is provided at the tip of each side surface portion 212 (see FIG. 4).

  The bottom surface 211b of the recess 211a is provided with a hole 211d for passing the electric wire for electrically connecting the substrate 22 and the power supply device 24 at one end in the front-rear direction (longitudinal direction) (the right end in FIG. 2). ing. In addition, a rectangular recess 211e formed by protruding a part of the bottom surface 211b upward is provided at a substantially central portion in the front-rear direction of the bottom surface 211b. The recess 211e is for securing an insulation distance between the connector 224 and the bottom surface 211b in a state in which both the boards 22 and 22 are attached to the attachment member 21.

  Further, as shown in FIG. 1A to FIG. 1C, caulking portions 211f for fixing the substrate 22 placed on the bottom surface 211b from the width direction are provided at both ends in the left-right direction of the bottom surface 211b. A plurality are provided along the front-rear direction. This caulking portion 211f is formed by cutting and raising a part of the bottom surface 211b, and the substrate 22 is sandwiched and fixed between the bottom surface 211b by bending the front end side inward (LED 222 side). Here, as shown in FIG. 4, both side surfaces 211c and 211c of the recess 211a are inclined surfaces that extend downward from both ends in the left-right direction of the bottom surface 211b and expand to the left and right sides as going downward. Moreover, in this embodiment, the attachment surface is comprised by the bottom face 211b of the recessed part 211a.

  The cover member 23 is formed in a long shape whose upper surface (surface on the mounting member 21 side) is opened with a diffusible material (for example, milky white acrylic resin), and from both ends to the center in the left-right direction (width direction). It has a diffusing surface 231 having a convex lens shape so that the amount of downward protrusion increases as it goes (see FIG. 4). Further, at both ends of the cover member 23 in the left-right direction, as shown in FIG. Outlets 232 are respectively provided. In addition, projecting wall portions 233 projecting upward (on the attachment member 21 side) are provided on the inner sides of the extending portions 232 in the left-right direction of the cover member 23, respectively. Protrusions 233a projecting inward are provided at the tips.

  The power supply device 24 includes a substrate 241 and a storage case 242 for storing the substrate 241. The board 241 includes a printed board 241a formed in a rectangular plate shape that is long in the front-rear direction. The printed board 241a includes circuit components (for example, a transformer, a diode, a capacitor, and the like) that are necessary to generate at least the lighting power of the LED 222. ) 241b is mounted. As shown in FIG. 4, the storage case 242 is formed in a rectangular box shape having one surface (a surface facing the bottom surface portion 211 of the mounting member 21) and long in the front-rear direction, and the opening side is the bottom surface of the mounting member 21. It attaches to the attachment member 21 using a screw etc. so that it may oppose the part 211, for example.

  The terminal block 25 includes a terminal block 251 formed in a rectangular box shape and a mounting bracket 252 for mounting the terminal block 251 to the mounting member 21. A power line (not shown) exposed to the indoor side (lower side) through the ceiling member 100 is connected to the terminal block 251, and an electric wire (not shown) that electrically connects the power source 24. Connected. The terminal block 25 is attached to the attachment member 21 using, for example, screws.

  Here, FIG. 1A is a perspective view showing a state in which the substrate 22 is attached to the attachment member 21, and FIGS. 1B and 1C show a state in which the substrate 22 is attached to the attachment member 21. It is a top view. When the substrate 22 is attached to the attachment member 21, the substrate 22 is placed on the bottom surface 211b of the recess 211a in a state where the groove 221a provided in the substrate 22 and the position of the caulking portion 211f provided in the attachment member 21 are aligned. When the portion of the caulking portion 211f opposite to the short side closer to the substrate 22 is bent inward (LED 222 side), the substrate 22 is sandwiched between the bottom surface 211b and the bent portion of the caulking portion 211f. Is attached to the attachment member 21. Here, in the present embodiment, a portion of the caulking portion 211f opposite to the short side of the substrate 22 is bent, and thereby light from the LED 222 irradiated toward the bent portion is irradiated to the end portion of the substrate 22 (substrate 22). Therefore, it is possible to increase the amount of light toward the end portion of the substrate 22.

  Next, the assembly procedure of the light source unit 2 will be described. First, the operator attaches the power supply device 24 and the terminal block block 25 to the upper surface side of the attachment member 21, respectively, and further connects the power supply device 24 and the terminal block block 25 with electric wires. Next, the operator places the substrate 22 on the bottom surface 211b of the concave portion 211a provided on the bottom surface portion 211 of the mounting member 21, and bends the front end side of the caulking portion 211f inward (LED 222 side), thereby making the substrate 22 the bottom surface 211b. Secure to.

  Further, the operator passes the electric wire led out from the connector 223 of the board 22 through the hole 211 d provided in the mounting member 21, and then connects the end to the power supply device 24. Finally, the operator attaches the cover member 23 to the attachment member 21 with the opening side facing upward. At this time, the protrusions 233 a provided on the respective protruding wall portions 233 of the cover member 23 engage with the inclined portions 212 a provided on the respective side surface portions 212 of the attachment member 21, so that the cover member 23 is attached to the attachment member 21. It is done. The light source unit 2 is assembled according to the above procedure.

  Then, the construction procedure of the lighting fixture A is demonstrated. First, the operator passes the power line exposed to the indoor side through the hole 111a provided in the instrument body 1, and further passes the suspension bolt 200 exposed to the indoor side through the ceiling material 100 through the hole 111b. A nut 300 is screwed into the bolt 200 to fix the instrument body 1 to the ceiling material 100. Next, the operator connects the power line to the terminal block 251, and at least the power supply device 24 and the terminal block block 25 are accommodated in the recess 11, for example, provided on the instrument body 1 and the attachment member 21, respectively. The light source unit 2 is attached to the instrument body 1 by a fitting structure (not shown). The lighting fixture A is constructed on the ceiling according to the procedure as described above (see FIGS. 3 and 4).

  FIG. 5 is another cross-sectional view showing a state in which the substrate 22 is attached to the attachment member 21. In this example, the mounting surface (in FIG. 5) of the substrate 22 attached to the bottom surface 211b of the recess 211a of the attachment member 21. The sheet 26 is attached so as to straddle the upper surface) and the surface of the bottom surface portion 211. The sheet 26 is a thin film made of an elastic material (for example, polyethylene terephthalate), and the lower surface (the upper surface in FIG. 5, the surface opposite to the substrate 22) is a reflective surface. ing. That is, the light radiated from the LED 222 can be reflected by the reflecting surface of the sheet 26 and applied to the predetermined illumination area, thereby increasing the amount of light to the illumination area. In this example, the sheet 26 is interposed between the bent portion of the caulking portion 211f and the substrate 22, and the degree of adhesion between the mounting member 21 and the substrate 22 can be increased by the elastic force of the sheet 26. Here, in this embodiment, the elastic member is constituted by the sheet 26.

  Thus, according to the present embodiment, the substrate 22 can be attached to the attachment member 21 by the caulking portion 211f formed by cutting and raising a part of the attachment member 21, and a screw for attaching the substrate 22 to the attachment member 21 Therefore, the number of parts can be reduced and the increase in cost can be suppressed.

  In the present embodiment, as shown in FIG. 5, the sheet 26 attached so as to straddle the mounting surface of the substrate 22 and the surface of the bottom surface portion 211 of the attachment member 21 is an elastic member, but the caulking portion 211f is bent. What is necessary is just to give an elastic force with respect to a site | part and the board | substrate 22, and is not limited to the sheet | seat 26. FIG. In the present embodiment, the ceiling-mounted lighting fixture has been described as an example. However, the configuration of the present invention may be applied to other lighting fixtures, and is not limited to the ceiling-mounted lighting fixture.

21 Mounting member 22 Substrate 211b Bottom surface (mounting surface)
211f Caulking part 222 LED
A lighting equipment

Claims (4)

A board on which the LED is mounted, and an attachment member to which the board is attached;
The mounting member includes a mounting surface to which the substrate is mounted, and a caulking portion that presses and fixes the substrate to the mounting surface side.   The lighting apparatus according to claim 1, further comprising an elastic member interposed between the substrate and the caulking portion.   The lighting apparatus according to claim 2, wherein the elastic member is a sheet whose surface opposite to the substrate is a reflective surface.   The substrate has a rectangular plate shape, and a plurality of the LEDs are mounted along the longitudinal direction of the substrate. The caulking portion is provided along the long side of the substrate, and the caulking portion has a short side of the substrate. The lighting apparatus according to any one of claims 1 to 3, wherein the substrate is fixed to the mounting member by bending a portion opposite to the side toward the LED.

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