JP2014179207A - Light source unit and lighting fixture using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source unit in which a cover member and an end cap can be mounted easily while suppressing increase in work time, and a lighting fixture using the same.SOLUTION: A cover member 23 has a first leg part 233 and a second leg part 234 extending to a mounting member 21 side from both ends in the width direction. The mounting member 21 is configured by: a bottom surface part 211; and a first side surface part 212 and a second side surface part 213 extending from both ends in the width direction of the bottom surface part 211. At both ends of the first side surface part 212 in the longitudinal direction, a pair of first caulking pieces 212b is provided, and at both ends of the second side surface part 213 in the longitudinal direction, a pair of second caulking pieces 213b is provided. Then, in a state where the cover member 23 is mounted on the mounting member 21, the first leg part 233 is held between the pair of first caulking pieces 212b and the first side surface part 212, and also, the second leg part 234 is held between the pair of second caulking pieces 213b and the second side surface part 213.

Description

  The present invention relates to a light source unit and a lighting fixture using the same.

  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 fixture main body that is directly attached to the ceiling using a suspension bolt, and a light source unit that is detachably attached to the fixture main body. The light source unit is attached to the attachment member so as to cover the plurality of light emitting elements, a mounting member formed in a horizontally long and long shape, a substrate on which a plurality of light emitting elements are mounted and attached to the lower surface of the mounting member. Cover member.

  The mounting member is formed in a U shape with a bottom surface portion formed in a long and rectangular plate shape and a pair of side surface portions extending in a direction orthogonal to the bottom surface portion from both ends in the width direction of the bottom surface portion. A cut-and-raised piece extending laterally is provided on the side surface portion. Further, the cover member is formed in a long and semi-cylindrical shape, and a pair of fitting grooves into which the cut and raised pieces are fitted are provided on the inner surface on the open end side.

  Then, with the positions of the fitting grooves corresponding to the cut and raised pieces respectively aligned, slide the cover member from the longitudinal direction with respect to the mounting member, and fit each cut and raised piece to the corresponding fitting groove. By combining, the cover member is attached to the attachment member.

JP 2012-3993 A

  In the lighting apparatus shown in Patent Document 1 described above, the movement of the cover member in the width direction can be restricted by fitting the cut-and-raised piece into the fitting groove, but the cover member is slidable in the longitudinal direction. Therefore, the movement of the cover member in the longitudinal direction could not be restricted.

  Therefore, in order to restrict the movement of the cover member in the longitudinal direction, a method of fixing the cover member to the mounting member using a screw is conceivable, but in this case, an operation of fixing a plurality of screws is necessary. Therefore, there was a problem that it took time to work.

  Further, end caps are attached to both ends in the longitudinal direction of the cover member in order to close the opening of the cover member, and an adhesive is generally used when attaching the end cap to the cover member. . Therefore, it is necessary to apply the adhesive to the end cap, and there is a problem that it takes a long time.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a light source unit capable of easily attaching a cover member and an end cap while suppressing an increase in working time, and a lighting fixture using the same. Is to provide.

  The light source unit of the present invention has an attachment member to which a substrate formed with a long shape and mounted with a light emitting element is attached, and the same direction as the longitudinal direction of the attachment member is the longitudinal direction and the same direction as the width direction of the attachment member is the width direction. And a cover member that is attached to the attachment member so as to cover the light emitting element in a state where the light emitting element is covered, and the cover member has a first leg portion and a second leg portion that extend from both sides in the width direction to the attachment member side. The mounting member is formed of a bottom surface portion formed in a long and rectangular plate shape, and a first side surface portion and a second side surface portion that extend from both ends in the width direction of the bottom surface portion in a direction intersecting the bottom surface portion. The first side surface portion is provided with a pair of first caulking pieces extending along the longitudinal direction from both ends in the longitudinal direction, and the second side surface portion is disposed along the longitudinal direction from both ends in the longitudinal direction. A pair of second scare that extends In the state in which the piece is provided and the cover member is attached to the attachment member, the first leg faces the first side face and the second leg faces the second side face in the width direction, and the first leg The first leg is sandwiched between the pair of first caulking pieces bent to the side and the first side face, and between the pair of second caulking pieces bent to the second leg side and the second side face. The second leg is sandwiched between the two.

  The light source unit includes a pair of end caps that are respectively attached to both ends in the longitudinal direction of the cover member, each end cap has an extending piece that extends to the cover member side, and the end cap is assembled to the cover member. It is preferable to have a support piece that supports the end cap by contacting the extension piece in the formed state.

  Further, in this light source unit, the attachment member extends from the end portion in the longitudinal direction of the bottom surface portion in a direction intersecting the bottom surface portion, and comes into contact when the end cap moves in a direction away from the cover member. It is also preferable to have a piece.

  Further, in this light source unit, the end cap has a stepped portion that opens on the mounting member side and the side opposite to the cover member, and the retaining piece is disposed on the stepped portion when the end cap is attached to the cover member. preferable.

  The lighting fixture of this invention is equipped with said light source unit, It is characterized by the above-mentioned.

  According to the configuration of the present invention, in a state in which the cover member is attached to the attachment member, the first leg portion is sandwiched between the pair of first caulking pieces and the first side face portion, and the pair of second caulking pieces and the second pair. Since the second leg is sandwiched between the side portions, the movement of the cover member in the longitudinal direction can be restricted. In addition, since it is only necessary to bend the first caulking piece to the first leg portion and the second caulking piece to the second leg portion side, the cover member can be easily attached to the attachment member while suppressing an increase in working time. it can.

The light source unit used for the lighting fixture of this embodiment is shown, (a) is a perspective view which can be omitted partially, (b) is an exploded perspective view which can be partially omitted. The light source unit used above is shown, (a) is a partially broken perspective view, (b) is a sectional view that can be partially omitted. It is an exploded perspective view same as the above. It is an external appearance perspective view same as the above. It is sectional drawing same as the above.

  Hereinafter, embodiments of a light source unit and a lighting fixture will be described with reference to FIGS. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the orientation shown in FIG. 5, and the direction perpendicular to the paper surface in FIG. 5 is defined as the front-rear direction (the front side is the front side). Do.

  The lighting fixture A of the present embodiment is a ceiling-mounted lighting fixture as shown in FIG. 5, and is detachable from the fixture main body 1 and the fixture main body 1 attached to the ceiling material 100 using the suspension bolt 200. And a light source unit 2 attached to the.

  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, and a light source on the opposite side (lower side) of the ceiling material 100 A rectangular recess 11 for accommodating the unit 2 is provided over the entire length (see FIG. 3). 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. 5).

  Further, a plurality of holes (5 in FIG. 3) 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, holes for allowing the suspension bolt 200 to pass therethrough. Two 111b are provided near both ends in the front-rear direction. Further, a terminal block (not shown) is attached to the bottom surface portion 111 of the recess 11, and the terminal block and a power supply device 24 described later are connected by electric wires.

  As shown in FIG. 3, the light source unit 2 includes a plurality of (two in FIG. 3) 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. Further, the light source unit 2 includes a power supply device 24 that supplies predetermined lighting power to the substrate 22 and a pair of end caps 25 that are respectively attached to both ends of the cover member 23 in the longitudinal direction.

  The substrate 22 includes a printed board 221 formed in a rectangular plate shape that is long in the front-rear direction, and a plurality of LEDs 222 (light emitting elements) are mounted on the lower surface of the printed board 221 along the front-rear direction (longitudinal direction). In addition, a connector 223 for electrically connecting the power supply device 24 is mounted on the front end portion (right end portion in FIG. 3) of one (right side in FIG. 3) substrate 22. 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, lighting power can be supplied from one (the right side in FIG. 3) board 22 to the other (the left side in FIG. 3) board 22. .

  The mounting member 21 is formed in a U shape by bending a sheet metal, and is formed in a long and rectangular plate shape, and upward from both ends in the left-right direction (width direction) of the bottom surface portion 211. The first side surface portion 212 and the second side surface portion 213 extend.

  At the tip of the first side surface portion 212, a protrusion 212a that protrudes to the side (right side in FIG. 5) is provided over the entire length, and at both ends in the front-rear direction (longitudinal direction) of the first side surface portion 212. A pair of first caulking pieces 212b extending in the front-rear direction are provided. Further, a protrusion 213a that protrudes to the side (left side in FIG. 5) is provided over the entire length at the tip of the second side surface portion 213, and the front and rear ends of the second side surface portion 213 are front and rear. A pair of second caulking pieces 213b extending in the direction is provided.

  A hole 211a is formed in the front end portion (right end portion in FIG. 3) of the bottom surface portion 211 for passing the electric wire that electrically connects the substrate 22 and the power supply device 24. In addition, a rectangular concave portion 211b formed by protruding a part of the bottom surface portion 211 upward is provided at a central portion of the bottom surface portion 211 in the front-rear direction. The recess 211 b is for securing an insulation distance between the connector 224 and the bottom surface portion 211 of the mounting member 21 in a state where both the boards 22 and 22 are mounted on the mounting member 21.

  Furthermore, rectangular plate-shaped retaining pieces 211c (only one side is shown in FIG. 1B) extending along the front-rear direction are provided at both ends of the bottom surface portion 211 in the front-rear direction (longitudinal direction). . These retainer pieces 211c function as a retainer for the end cap 25 by being bent downward (on the cover member 23 side). In addition, the board | substrate 22 mentioned above is fixed to the attachment member 21 by the latching claw (not shown) formed, for example by cutting and raising a part of the bottom face part 211 of the attachment member 21. FIG.

  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). In addition, the cover member 23 has a convex lens-shaped diffusion 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. 5). Further, at both ends in the left-right direction of the cover member 23, as shown in FIG. Outlets 232 are respectively provided.

  In addition, a first leg portion 233 and a second leg portion 234 that extend 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. Yes. Further, a hook piece 233a extending toward the second leg portion 234 is provided at the tip of the first leg portion 233, and further on the inner side surface of the first leg portion 233 (the surface facing the second leg portion 234). Is provided with a support piece 233b extending to the second leg 234 side (leftward). Further, a hook piece 234a extending toward the first leg portion 233 is provided at the tip of the second leg portion 234, and further on the inner side surface of the second leg portion 234 (surface facing the first leg portion 233). Is provided with a support piece 234b extending to the first leg 233 side (toward the right).

  The power supply device 24 includes a power supply board 241 and a storage case 242 for storing the power supply board 241. The power supply 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 at least circuit components (for example, a transformer, a diode, a capacitor, etc.) 241b for generating lighting power for the LEDs 222. Has been implemented.

  As shown in FIG. 3, the storage case 242 is formed in a rectangular box shape with one surface (a surface facing the bottom surface portion 211 of the mounting member 21) open and long in the front-rear direction. The storage case 242 is attached to the side surface portion 212 of the mounting member 21 using, for example, screws, such that the opening side faces the bottom surface portion 211 of the mounting member 21.

  As shown in FIG. 1B, the end cap 25 has a cap body 251 formed in a thin semicircular shape, and the cap body 251 is provided on one surface of the cap body 251 (the surface on the cover member 23 side). A protrusion 252 that protrudes in an arc shape along the lower surface of 251 is provided. Further, on one surface of the cap body 251, extended pieces 253 extending toward the cover member 23 are provided near both ends in the left-right direction (width direction) (in FIG. 1B, one extended piece). Only 253 is shown). Further, a stepped portion 254 (see FIG. 2B) is provided at the upper portion of the end cap 25, and the upper side (the mounting member 21 side) and the front side (the side opposite to the cover member 23) are opened.

  Here, when the cover member 23 is assembled to the attachment member 21 from the lower side, the hook portion 233a of the first leg portion 233 engages with the protrusion 212a of the first side surface portion 212, and further, the second leg portion 234 The hook portion 234a engages with the protrusion 213a of the second side surface portion 213. In this state, in the left-right direction, the first leg portion 233 faces the first side surface portion 212 and the second leg portion 234 faces the second side surface portion 213 (see FIG. 5).

  When the cover member 23 is attached to the attachment member 21 with only the hook portions 233a and 234a and the protrusions 212a and 213a, the cover member 23 is slidable in the front-rear direction (longitudinal direction). Cannot be controlled.

  Therefore, in the present embodiment, both the first caulking pieces 212b and 212b of the first side surface portion 212 are bent toward the first leg 233 side (the right side in FIG. 1A), and both the first caulking pieces 212b and 212b The first leg portion 233 is sandwiched between the first side surface portions 212. Further, both the second caulking pieces 213b and 213b of the second side surface portion 213 are bent toward the second leg portion 234 (left side in FIG. 1A), and both the second caulking pieces 213b and 213b and the second side surface portion 213 are bent. The second leg 234 is held between the two. Thereby, the movement of the cover member 23 in the front-rear direction is restricted.

  End caps 25 are attached to both ends of the cover member 23 in the front-rear direction (longitudinal direction). In a state where the end cap 25 is attached to the cover member 23, as shown in FIGS. 2A and 2B, the extended piece 253 of the end cap 25 is supported by the support piece 233b (or the support piece 234b) of the cover member 23. ). Further, as shown in FIG. 2B, the protrusion 252 of the end cap 25 contacts the inner peripheral surface of the diffusion surface 231 of the cover member 23. The end cap 25 is covered with the cover member 23 by a frictional force between the extension piece 253 and the support piece 233b (or the support piece 234b) and a frictional force between the protrusion 252 and the inner peripheral surface of the diffusion surface 231. Supported by

  Further, after the end cap 25 is attached to the cover member 23, when the retaining piece 211 c of the attachment member 21 is bent downward (on the cover member 23 side), the retaining piece 211 c is disposed at the step portion 254 of the end cap 25. . For example, when the end cap 25 moves in a direction away from the cover member 23 (the right direction in FIG. 2B), the retaining piece 211c comes into contact with the side surface of the stepped portion 254, thereby the end cap 25. Omission is prevented.

  Here, L1 in FIG. 2B is the length dimension of the first caulking piece 212b after being bent, and L2 is the allowance in the front-rear direction of the cover member 23. Further, L3 in FIG. 2B is a length dimension of the extending piece 253, and L4 is a covering margin of the first caulking piece 212b and the cover member 23 in the front-rear direction.

  The extension L2 of the cover member 23 is desirably set larger than the expansion dimension of the cover member 23 as the temperature rises. In addition, the length dimension L1 of the first caulking piece 212b is desirably set to be larger than the sum of the expansion allowance L2 of the cover member 23 and the contraction dimension of the cover member 23 due to the temperature decrease. Further, it is desirable that the covering margin L4 of the first caulking piece 212b and the cover member 23 is larger than the extending margin L2 of the cover member 23 and smaller than the length dimension L3 of the extending piece 253.

  Next, the assembly procedure of the light source unit 2 will be described. First, the operator attaches the power supply device 24 to the upper surface side of the bottom surface portion 211 of the attachment member 21, and fixes the two substrates 22, 22 to the bottom surface portion 211 of the attachment member 21 by the locking claws. Thereafter, the operator passes the electric wire led out from the connector 223 of the board 22 through the hole 211 a provided in the bottom surface portion 211 of the mounting member 21, and connects the end portion to the power supply device 24.

  Next, the operator attaches the cover member 23 to the attachment member 21 with the opening side facing upward. At this time, the hook portion 233a of the first leg portion 233 engages with the protrusion 212a of the first side surface portion 212, and the hook portion 234a of the second leg portion 234 engages with the protrusion 213a of the second side surface portion 213. To do.

  Thereafter, the operator bends both the first caulking pieces 212b and 212b toward the first leg portion 233, and sandwiches the first leg portion 233 between the first caulking pieces 212b and 212b and the first side surface portion 212. . Further, the operator bends both the second caulking pieces 213b and 213b toward the second leg portion 234, and sandwiches the second leg portion 234 between the second caulking pieces 213b and 213b and the second side surface portion 213. .

  Finally, the operator attaches the end caps 25, 25 to the cover member 23 from the front-rear direction, and then bends the retaining pieces 211c, 211c of the attachment member 21 downward (the cover member 23 side). The assembly of the light source unit 2 is completed.

  Then, the construction procedure of the lighting fixture A is demonstrated. In the following description, it is assumed that the terminal block is attached to the instrument body 1 in advance. First, the operator passes a power line (not shown) wired in advance on the back of the ceiling through the hole 111a of the instrument body 1, and further passes the suspension bolt 200 exposed indoors through the hole 111b. A nut 300 is screwed into the bolt 200 to fix the instrument body 1 to the ceiling material 100.

  Thereafter, the operator connects the end of the power supply line to the terminal block, and further connects the terminal block and the power supply device 24 with an electric wire. And finally, the operator can arrange the light source unit 24 with a fitting structure (not shown) provided in the instrument body 1 and the mounting member 21, respectively, so that the power supply device 24 is accommodated in the recess 11 of the instrument body 1. 2 is attached to the instrument body 1. The lighting fixture A is constructed on the ceiling according to the above procedure (see FIGS. 4 and 5).

  In a state where the cover member 23 is attached to the attachment member 21, the first leg portion 233 is sandwiched between the pair of first caulking pieces 212b and the first side surface portion 212, and the pair of second caulking pieces 213b and the second side surface portion. Since the 2nd leg part 234 is clamped between 213, the movement to the longitudinal direction of the cover member 23 can be controlled. In addition, since the first caulking piece 212b only needs to be bent toward the first leg portion 233 and the second caulking piece 213b is bent toward the second leg portion 234, the cover member 23 is attached to the mounting member 21 while suppressing an increase in working time. Can be easily attached to.

  Further, when attaching the end cap 25 to the cover member 23, it is only necessary to assemble the end cap 25 from the longitudinal direction of the cover member 23. The end cap 25 can be easily attached to the cover member 23 while suppressing an increase in working time. Can do. Further, when the end cap 25 moves in a direction away from the cover member 23, the end cap 25 comes into contact with the retaining piece 211 c, so that it is possible to provide the light source unit 2 in which the end cap 25 is not easily detached from the cover member 23.

  Further, as in the present embodiment, when the retaining piece 211c is arranged in the stepped portion 254 in the assembled state of the light source unit 2, the heat of the cover member 23 is caused by the gap between the retaining piece 211c and the stepped portion 254. A dimension increase due to expansion can be absorbed. Furthermore, by using the light source unit 2 of the present embodiment, it is possible to provide the lighting fixture A that can easily attach the cover member 23 and the end cap 25 while suppressing an increase in working time.

21 Attachment member 23 Cover member 211 Bottom face part 212 First side face part 212b First caulking piece 213 Second side face part 213b Second caulking piece 233 First leg part 234 Second leg part

Claims (5)

A mounting member to which a substrate formed with a long shape and mounted with a light emitting element is mounted;
A cover member attached to the attachment member so as to cover the light emitting element in a state in which the same direction as the longitudinal direction of the attachment member is the longitudinal direction and the same direction as the width direction of the attachment member is the width direction;
The cover member has a first leg portion and a second leg portion extending from both sides in the width direction to the mounting member side,
The mounting member includes a bottom surface portion formed in a long and rectangular plate shape, and a first side surface portion and a second side surface portion that extend from both ends in the width direction of the bottom surface portion in a direction intersecting the bottom surface portion. A pair of first caulking pieces are formed on the first side surface portion and extend in the longitudinal direction from both ends in the longitudinal direction, and the second side surface portion is disposed in the longitudinal direction from both ends in the longitudinal direction. A pair of second caulking pieces respectively extending along the
In a state where the cover member is attached to the attachment member, the first leg portion faces the first side surface portion and the second leg portion faces the second side surface portion in the width direction. The pair of second caulking pieces, wherein the first leg is sandwiched between the pair of first caulking pieces bent to the one leg part side and the first side face part and bent to the second leg part side. The light source unit, wherein the second leg portion is sandwiched between the second side surface portion and the second side surface portion. A pair of end caps respectively attached to both ends in the longitudinal direction of the cover member;
Each of the end caps has an extending piece extending to the cover member side,
The light source unit according to claim 1, wherein the cover member includes a support piece that supports the end cap by contacting the extension piece in a state where the end cap is assembled.   The attachment member has a retaining piece that extends from an end portion in the longitudinal direction of the bottom surface portion in a direction intersecting the bottom surface portion and abuts when the end cap moves in a direction away from the cover member. The light source unit according to claim 2. The end cap has a stepped portion that opens on the mounting member side and the side opposite to the cover member,
The light source unit according to claim 3, wherein the retaining piece is disposed at the step portion in a state where the end cap is attached to the cover member.   An illumination fixture comprising the light source unit according to any one of claims 1 to 4.

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