JP6041210B2 - Light source unit and lighting apparatus using the same - Google Patents

Description

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

  Conventionally, lighting fixtures using semiconductor light emitting elements such as light emitting diodes have been provided (see, for example, Patent Document 1). This lighting fixture includes two substrates that are each formed in a long shape and on which a plurality of semiconductor light emitting elements are mounted along the longitudinal direction, and a long fixture main body to which the two substrates are attached.

  A connecting connector for connecting to the other board is mounted on one end in the longitudinal direction of each board, and an end for connecting a power supply line or a short-circuit piece to the other end in the longitudinal direction of each board. Connector is mounted. On the other hand, a hole for passing the power line is provided at one end in the longitudinal direction of the instrument body.

  Then, by connecting the connecting connectors to each other, the two boards arranged in a row are attached to the instrument main body, and the power line passed through the hole is connected to the end connector of one board, and the short-circuiting piece is connected to the other board. By connecting to the end connector, the lighting fixture is assembled.

JP 2010-98302 A

  By the way, in the lighting fixture shown in the above-mentioned Patent Document 1, the connection connector and the end connector are arranged outside the semiconductor light emitting element, and the hole is arranged outside the end connector of one substrate. For this reason, there is a problem that light emitted from the semiconductor light emitting element does not easily reach the end of the instrument body, and the end is darker than the center.

  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 that suppresses darkening of an end portion in the longitudinal direction and a lighting fixture using the light source unit. .

  The light source unit of the present invention is formed in a long shape, a substrate on which a plurality of light emitting elements are mounted along the longitudinal direction, a longitudinal direction that is the same as the longitudinal direction of the substrate, and a width that is the same as the width direction of the substrate. And a mounting member to which the board is attached in a state in which the direction is set, and the board has a connecting portion that is mounted on one end side in the longitudinal direction and on one end side in the width direction and to which an electric wire from the power supply device is connected. Has a first insertion hole that is provided on one end side in the longitudinal direction and on the other end side in the width direction and through which the electric wire is inserted, and in the state where the substrate is attached to the attachment member, the connecting portion is arranged along the width direction. The first insertion hole is arranged side by side and is configured to be exposed to the light emitting element side.

  In this light source unit, two substrates are provided, and the attachment member has a second insertion hole provided at a position symmetrical to the first insertion hole with respect to the center of the attachment member and through which the electric wire is inserted. The substrate is preferably attached to the attachment member so as to be point-symmetric with respect to the center of the attachment member.

  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, when the substrate is attached to the attachment member, the connection portion and the first insertion hole are arranged side by side in the width direction of the attachment member. Compared to the case where the holes are arranged side by side, the light emitting element can be arranged closer to the end of the mounting member, and as a result, the light source unit that suppresses the dark end in the longitudinal direction and the light source unit are used. There is an effect that it is possible to provide a lighting device.

(A), (b) is a typical top view which shows the principal part of the light source unit of this embodiment. It is a disassembled perspective view of the lighting fixture using the same as the above. It is an external appearance perspective view of the lighting fixture using the same. It is sectional drawing of the lighting fixture using the 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. 4, and the direction perpendicular to the paper surface in FIG. 4 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. 4, and the fixture main body 1 that is attached to the ceiling material 100 using the suspension bolts 200 and is detachable from the fixture main body 1. 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. 2). 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, 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. 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. And a power supply device 24 for supplying predetermined lighting power to the substrate 22.

  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 is mounted on one end side in the left-right direction (width direction) at the end portion of each substrate 22 that does not face the adjacent substrate 22, and a groove 225 is provided on the other end side in the left-right direction. It has been. The connector 223 is connected to an electric wire (not shown) for electrical connection with the power supply device 24. In the present embodiment, the connector 223 constitutes a connection portion.

  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 the boards 22 and 22, the boards 22 and 22 and the power supply device 24 are electrically connected. Lighting power is supplied.

  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). As shown in FIG. 4, an inclined portion 212 a that inclines away from each other (outward) is provided at the tip of each side surface portion 212 over the entire length.

  Holes 211a and 211a (a first insertion hole and a second insertion hole) for passing the electric wires for electrically connecting the substrate 22 and the power supply device 24 are formed at both ends of the bottom surface portion 211 in the front-rear direction (longitudinal direction). Each is provided. 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. 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 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 in the left-right direction of the cover member 23, as shown in FIG. 4, the light source unit 2 is attached to the instrument main body 1 and extends in the vertical direction so as to overlap the opening edge of the recess 11 of the instrument main body 1. Outlets 232 are respectively provided. Further, a protruding wall portion 233 protruding upward (on the attachment member 21 side) is provided on the inner side of each extending portion 232 in the left-right direction of the cover member 23, and the tip of each protruding wall portion 233 is provided. Is provided with a protrusion 233a protruding inwardly.

  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 circuit components (for example, a transformer, a diode, a capacitor, and the like) that are required to generate at least the lighting power of the LED 222. Etc.) 241b is implemented.

  As shown in FIG. 2, 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 side part 212 of the attachment member 21 using a screw etc. so that it may oppose the part 211, for example.

  Here, FIG. 1A is a schematic plan view showing a state in which both the substrates 22 and 22 are attached to the attachment member 21. In the present embodiment, the holes 211a and 211a provided at both ends in the front-rear direction of the mounting member 21 (left-right direction in FIG. 1A) are point-symmetric with respect to the center P1 (center of gravity) of the mounting member 21. It is provided at the position.

  The two substrates 22 and 22 are attached to the attachment member 21 so as to be point-symmetric with respect to the center P1 of the attachment member 21, and in this state, the holes 211a and 211a are formed in the substrates 22 and 22, respectively. The LED 222 is exposed through the grooves 225 and 225 provided respectively. Further, in this state, the holes 211a and the connectors 223 are arranged side by side along the width direction (left-right direction) at each end in the front-rear direction of the mounting member 21. Therefore, the LEDs 222 mounted on the substrate 22 can be disposed closer to the end in the longitudinal direction of the mounting member 21.

  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. At this time, the two substrates 22 and 22 are attached to the attachment member 21 so as to be point-symmetric with respect to the center P <b> 1 of the attachment member 21. Thereafter, the worker passes the electric wires led out from the connector 223 of each board 22 through the holes 211 a provided in the bottom surface portion 211 of the mounting member 21, and connects the end portions 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. 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 procedure as described above (see FIGS. 3 and 4).

  According to the present embodiment, when the board 22 is attached to the attachment member 21, the connector 223 and the hole 211 a are arranged side by side in the width direction of the attachment member 21, so the connector 223 and the hole 211 a in the longitudinal direction of the attachment member 21. The LED 222 can be disposed closer to the end of the mounting member 21 than when the are arranged side by side. As a result, it can suppress that the edge part in the longitudinal direction of the attachment member 21 becomes dark.

  Moreover, the aesthetics as the whole instrument can be improved by suppressing that the edge part in the longitudinal direction of the attachment member 21 becomes dark. Furthermore, the shape of the substrate 22 can be integrated into one type by making the shape of the substrate 22 symmetrical with respect to the center P1 of the mounting member 21.

  In the present embodiment, the case where the number of the substrates 22 is two has been described as an example, but the number of the substrates 22 may be one. Also in this case, as shown in FIG. 1B, the hole 211a is exposed to the LED 222 side (lower side) through the groove 225 provided in the substrate 22, and the connector 223 and the hole 211a are in the width direction of the mounting member 21. As long as they are arranged side by side. Thereby, it becomes possible to arrange | position LED222 near the edge part in the longitudinal direction of the attachment member 21 similarly, As a result, it can suppress that the edge part in the longitudinal direction of the attachment member 21 becomes dark.

  Further, in the present embodiment, the groove 225 is provided at the corner of the substrate 22 in order to expose the hole 211a to the LED 222 side, but a hole having a size capable of exposing the hole 211a may be provided instead of the groove 225. The present embodiment is not limited to this.

2 Light source unit 21 Mounting member 22 Substrate 24 Power supply device 211a Insertion hole (first insertion hole)
222 LED (light emitting element)
223 connector (connection part)

Claims (3)

A substrate that is formed in a long shape and on which a plurality of light emitting elements are mounted along the longitudinal direction, and that the same direction as the longitudinal direction of the substrate is the longitudinal direction and the same direction as the width direction of the substrate is the width direction An attachment member to which the substrate is attached;
The substrate has a connection part that is mounted on one end side in the longitudinal direction and on one end side in the width direction to which an electric wire from the power supply device is connected,
The attachment member has a first insertion hole that is provided on one end side in the longitudinal direction and on the other end side in the width direction and through which the electric wire is inserted,
The substrate is configured to arrange the connecting portion side by side with the first insertion hole along the width direction and to expose the first insertion hole to the light emitting element side when attached to the attachment member. A light source unit characterized by that. Comprising two of the substrates,
The mounting member has a second insertion hole through which the electric wire is inserted and provided at a position point-symmetric to the first insertion hole with respect to the center of the mounting member,
The light source unit according to claim 1, wherein the two substrates are attached to the attachment member so as to be point-symmetric with respect to the center of the attachment member.   A light fixture comprising the light source unit according to claim 1.

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