JP5572256B2 - Light source unit and lighting apparatus - Google Patents

Description

  The present invention relates to a light source unit and 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). The lighting fixture includes a horizontally long and long fixture main body, and a light source portion that is attached to the fixture main body using a locking member, and a housing for accommodating the light source portion at the approximate center of the fixture main body. A recess is provided over the entire length.

  In addition, the light source unit covers the plurality of substrates, the mounting member formed in a horizontally long and long shape, the plurality of light-emitting elements mounted on the lower surface of the mounting member, respectively, similarly to the instrument body. 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-described problems, and an object of the present invention is to provide a light source unit and a lighting fixture that can suppress cost increase by reducing the number of parts.

The light source unit of the present invention is formed in a long and rectangular plate shape, a substrate on which a plurality of LEDs are mounted along the longitudinal direction, a bottom surface portion including a mounting surface to which the substrate is attached , formed of a sheet metal , And a long attachment member having a caulking portion that presses and fixes the substrate to the attachment surface side, and is arranged so that the longitudinal direction is the same as the longitudinal direction of the attachment member, and covers the substrate. and a cover member for a long attached to the mounting member Te, the caulked portion is formed by cutting and raising a portion of the mounting member, the and the long side of the substrate on both sides in the width direction of the substrate The caulking portion is connected to the bottom surface portion at a short side portion of the substrate, and a portion of the caulking portion opposite to the short side of the substrate is a mounting surface of the substrate. before along By bending the LED side, wherein the substrate is fixed to the mounting member.

  The lighting fixture of the present invention includes the light source unit and a fixture main body to which the light source unit is attached.

  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 light source unit of this embodiment is shown, (a) is a perspective view, (b), (c) is a top view. It is a disassembled perspective view of the lighting fixture using the same as the above. It is a whole perspective view of the lighting fixture using the same. (A) is sectional drawing same as the above, (b) is sectional drawing of the lighting fixture using the 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, the vertical and horizontal directions are defined in the direction shown in FIG. 4B, and the direction perpendicular to the paper surface in FIG. I do.

  The lighting fixture A of the present embodiment is a ceiling-mounted lighting fixture as shown in FIG. 4B, and the fixture main body 1 attached to the ceiling material 100 using the suspension bolt 200 and the fixture main body 1 The light source unit 2 is detachably attached to the light source unit 2.

  As shown in FIG. 2, the instrument body 1 is formed into a flat box shape that is long and has an open upper surface (a surface facing the ceiling material 100) by bending a sheet metal. A rectangular recess 11 for accommodating the light source unit 2 is provided over the entire length of the instrument body 1 on the opposite side (that is, the lower side) of the ceiling material 100 in 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, 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. 4B).

  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 FIGS. 2 and 4A, 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 an attachment member that covers the substrates 22. Cover member 23 attached to 21. The light source unit 2 also includes 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, and the substrate 22 and the power supply device 24 are electrically connected by connecting the end of the electric wire to the power supply device 24.

  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).

  The mounting member 21 is formed in a U shape by bending a sheet metal, and is a bottom surface portion 211 formed in a long and rectangular plate shape, and a vertical direction from both ends in the left-right direction (width direction) of the bottom surface portion 211. It is comprised by a pair of side part 212 extended in (the direction orthogonal to the bottom face part 211). A concave portion 211 a for accommodating the substrate 22 is provided over the entire length at the approximate center of the bottom surface portion 211. In addition, inclined portions 212a that are inclined in directions away from each other are provided at the front ends of the respective side surface portions 212 (see FIG. 4A).

  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 projecting a part of the bottom surface 211b upward is provided at the approximate center of the bottom surface 211b in the front-rear direction. 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. 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. 4A, 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. ing. 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 by a diffusible material (for example, milky white acrylic resin). The cover member 23 has a convex lens-shaped diffusing surface 231 in which the amount of protrusion downward increases from the both ends to the center in the left-right direction (width direction) (see FIG. 4A). ).

  Further, at both ends in the left-right direction of the cover member 23, as shown in FIG. 4B, the opening edge of the recess 11 of the instrument body 1 in the vertical direction with the light source unit 2 attached to the instrument body 1. The extending portions 232 that overlap each other are 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 substrate 241 includes a printed circuit board 241a formed in a rectangular plate shape that is long in the front-rear direction. The printed circuit board 241a includes at least circuit components (for example, a transformer, a diode, a capacitor, and the like) 241b for generating the lighting power of the LED 222. Has been implemented.

  As shown in FIG. 4A, 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 mounting member 21. It attaches to the attachment member 21 using a screw etc. so that it may oppose the bottom face 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. Then, when a 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. As a result, the light from the LED 222 irradiated toward the bent portion can be reflected toward the end portion of the substrate 22 (the end portion on the short side of the substrate 22), and thus the amount of light toward the end portion side of the substrate 22 Can be increased.

  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 in the bottom surface portion 211 of the mounting member 21, and then bends the front end side of the caulking portion 211f inward (LED 222 side) to fold the substrate 22 into 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 are hooked on the inclined portions 212 a provided on the respective side surface portions 212 of the attachment member 21, and the cover member 23 is attached to the attachment member 21. 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 main body 1, passes the suspension bolt 200 exposed to the indoor side through the ceiling material 100, and then passes through the hole 111b. A nut 300 is screwed into 200 to fix the instrument body 1 to the ceiling material 100.

  Next, the operator connects the power supply line to the terminal block 251 and attaches the light source unit 2 to the instrument body 1 by, for example, fitting structures (not shown) provided on the instrument body 1 and the attachment member 21, respectively. At this time, at least the power supply device 24 and the terminal block 25 are accommodated in the recess 11. The lighting fixture A is constructed on the ceiling according to the above procedure (see FIGS. 3 and 4B).

  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 sheet 26 is attached so as to straddle the mounting surface (upper surface in FIG. 5) of the substrate 22 attached to the bottom surface 211 b of the recess 211 a of the attachment member 21 and the surface of the bottom surface part 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 211 f formed by cutting and raising a part of the attachment member 21. Thereby, since the screw for attaching the board | substrate 22 to the attachment member 21 is unnecessary, the number of parts can be reduced and the cost increase 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. What is necessary is just to give an elastic force with respect to a bending site | part and the board | substrate 22. FIG. That is, the sheet 26 is not limited as long as it has elasticity. 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.

  The light source unit 2 of the present embodiment includes a substrate 22, an attachment member 21, and a cover member 23. An LED 222 is mounted on the substrate 22. The attachment member 21 is formed in a long shape, and the substrate 22 is attached thereto. The cover member 23 is formed in a long shape, is arranged so that the longitudinal direction thereof is the same as the longitudinal direction of the attachment member 21, and is attached to the attachment member 21 so as to cover the substrate 22. The attachment member 21 is made of sheet metal, and has a bottom surface 211b (attachment surface) to which the substrate 22 is attached, and a caulking portion 211f that presses and fixes the substrate 22 to the bottom surface 211b side. The substrate 22 is a long and rectangular plate, and a plurality of LEDs 222 are mounted along the longitudinal direction of the substrate 22. The caulking portion 211 f is formed by cutting and raising a part of the attachment member 21, and is provided on both sides in the width direction of the substrate 22 and along the long side of the substrate 22. And the board | substrate 22 is fixed to the attachment member 21 by bend | folding the site | part on the opposite side to the short side of the board | substrate 22 in the crimp part 211f to the LED222 side.

  The lighting fixture A of the present embodiment includes a light source unit 2 and a fixture body 1 to which the light source unit 2 is attached.

2 Light source unit 21 Mounting member 22 Substrate 211b Bottom surface (mounting surface)
211f Caulking part 222 LED

Claims (2)

A long and rectangular plate-shaped substrate on which a plurality of LEDs are mounted along the longitudinal direction ;
A long mounting member having a bottom surface portion formed of a sheet metal and having a mounting surface to which the substrate is mounted ; and a caulking portion that presses and fixes the substrate to the mounting surface side ;
Longitudinal direction is disposed so that the longitudinal direction in the same direction of the mounting member, so as to cover the substrate and a cover member for a long attached to the mounting member,
The caulking portion is formed by cutting and raising a part of the mounting member, and is provided on both sides in the width direction of the substrate and along the long side of the substrate,
The caulking portion is connected to the bottom portion at a short side portion of the substrate,
The light source unit, wherein the substrate is fixed to the mounting member by bending a portion of the caulking portion on the side opposite to the short side of the substrate along the mounting surface of the substrate toward the LED.   An illumination fixture comprising: the light source unit according to claim 1; and a fixture main body to which the light source unit is attached.

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