JP2015176748A - Light source unit and lighting fixture using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce darkness generating between two adjacent covers.SOLUTION: A mounting member 21 is formed in a long manner, and a substrate 221 is mounted on it. A cover is formed by a translucent material in a long manner, and mounted on the mounting member 21 so as to cover the substrate 221. The cover is mounted on the mounting member 21 in a state where the same direction as the longitudinal direction of the mounting member 21 is made to be a longitudinal direction and the same direction as the width direction of the mounting member 21 is made to be a width direction. Also, in the cover, dimension in the longitudinal direction is longer than the mounting member 21, and both sides in the longitudinal direction protrude further outward than the mounting member 21 in a state of being mounted on the mounting member 21.

Description

  The present invention generally relates to a light source unit and a lighting fixture using the same, and more particularly to a light source unit using a light emitting element as a light source 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 surface has been provided (see, for example, Patent Document 1). The lighting fixture described in Patent Document 1 includes a fixture body that is horizontally long and long, and a light source unit that is attached to the fixture body. The light source section includes a horizontally long and long mounting member, a substrate on which a plurality of light emitting elements are mounted, and a cover formed of a light-transmitting material.

  The mounting member has a flat and long bottom wall and a pair of side walls that rise in a direction perpendicular to the bottom wall from both sides in the width direction of the bottom wall, and the board is attached to the bottom wall by screwing or the like. It is done. The cover is formed in a long and semi-cylindrical shape, and is attached to the attachment member so as to cover the substrate.

JP 2012-3993 A

  Since the lighting fixture shown in the above-mentioned Patent Document 1 has a structure in which the light source portion is attached to the fixture main body attached to the ceiling surface, for example, in consideration of attachment properties and design properties, the longitudinal dimension of the light source portion and In general, the width dimension is smaller than the longitudinal dimension and the width dimension of the instrument body.

  When a plurality of lighting fixtures are arranged in the longitudinal direction in a facility such as an office, a gap is generated between two adjacent covers, and a light source does not exist in this gap, so the lighting fixture is turned on. It will be dark. As a result, there has been a problem that the designability of the entire space including the lighting fixtures is lowered.

  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 in which darkness generated between two adjacent covers is reduced and a lighting apparatus using the light source unit.

  The light source unit of the present invention includes a substrate on which one or a plurality of light emitting elements are mounted, an elongated attachment member to which the substrate is attached, and an elongated member formed of a translucent material. A cover attached to the attachment member so as to cover the cover, the cover having a longitudinal direction that is the same as the longitudinal direction of the attachment member and a width direction that is the same as the width direction of the attachment member The cover has a longer dimension in the longitudinal direction than that of the mounting member, and in the state of being attached to the mounting member, both sides in the longitudinal direction protrude outward from the mounting member. Features.

  The light source unit preferably includes a light guide member that guides light from the light emitting element disposed at least at the end portion in the longitudinal direction of the mounting member to the end portion side in the longitudinal direction of the cover.

  In the light source unit, the light guide member is preferably provided integrally with the cover.

  The lighting fixture of this invention is equipped with the said light source unit and the fixture main body to which the said light source unit is attached, It is characterized by the above-mentioned.

  According to the configuration of the present invention, since both sides of the cover in the longitudinal direction protrude outward from the mounting member, it is possible to reduce the gap between the covers that occurs when a plurality of lighting fixtures are installed side by side in the longitudinal direction. . And since the light radiated | emitted from a light emitting element can be irradiated to the illumination space side through the cover arrange | positioned in the said clearance gap, the darkness produced in the said clearance gap can be reduced. As a result, it can suppress that the designability of the whole space including a lighting fixture falls.

(A) is the elements on larger scale of the lighting fixture using the light source unit of this embodiment, (b) is a principal part enlarged view of the light source unit of this embodiment. It is a disassembled perspective view of the lighting fixture using the light source unit of this embodiment. It is a whole perspective view of the lighting fixture using the light source unit of this embodiment. It is sectional drawing which can abbreviate | omit a part of lighting fixture using the light source unit of this embodiment. (A) is the elements on larger scale of the lighting fixture using another light source unit of this embodiment, (b) is a principal part enlarged view of another light source unit of this embodiment.

  Embodiments of a light source unit and a lighting fixture using the same according to the present invention will be specifically described with reference to FIGS. In the following description, unless otherwise specified, each direction of up and down, front and rear, and left and right is defined in FIG. Therefore, the longitudinal direction of the instrument body 1 is the front-rear direction, and the width direction of the instrument body 1 is the left-right direction.

  The lighting fixture 10 of this embodiment is a lighting fixture of a ceiling direct attachment type, for example, with respect to the fixture main body 1 attached to a ceiling material (not shown) using a suspension bolt (not shown), and the fixture main body 1. The light source unit 2 is detachably attached.

  As shown in FIG. 2, the instrument body 1 is formed into a flat box shape that is long and has an upper surface opened by bending a sheet metal, and the lower surface side of the instrument body 1 accommodates the light source unit 2. The rectangular recess 11 is provided over the entire length. In addition, inclined portions 12 and 12 that are inclined obliquely upward from the opening edge of the recess 11 are respectively provided on the left and right sides of the recess 11 of the instrument body 1.

  In addition, a plurality of holes 1110 (three in FIG. 2) for passing electric wires are provided in the bottom surface portion 111 of the recess 11 along the front-rear direction (longitudinal direction), and holes 1111 for passing suspension bolts are provided in the front-rear direction. Two are provided at each end in the direction. The appliance body 1 is fixed to the ceiling material by passing a suspension bolt exposed from the ceiling material through the hole 1111 and then screwing a nut into the suspension bolt. The construction procedure will be described later.

  As shown in FIG. 2, the light source unit 2 includes two LED modules 22, a mounting member 21, a first cover 23, two (only one side is shown in FIG. 2) second covers 24, and a power supply device 25. With.

  The LED module 22 includes a substrate 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 disposed in the front-rear direction (longitudinal direction of the substrate 221) on one surface (lower surface) of the substrate 221. Implemented in a line along.

  Further, a connector 223 for electrically connecting the power supply device 25 is mounted on the rear end portion of one of the substrates 221 (left side in FIG. 2). An electric wire (not shown) is connected to the connector 223, and the end of the electric wire is connected to the output end of the power supply device 25, whereby the board 221 and the power supply device 25 are electrically connected. .

  Furthermore, a connector 224 for supplying power is mounted on the end portion of each substrate 221 facing the adjacent substrate 221. Then, by connecting the connectors 224 and 224 of the boards 221 and 221, lighting power can be supplied from the board 221 on one side (left side in FIG. 2) to the board 221 on the other side (right side in FIG. 2). .

  As shown in FIG. 2, the attachment member 21 is formed into 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 direction) of the bottom surface portion 211. ) And a pair of side surface portions 212 extended upward from both ends. A hook portion 2120 (see FIG. 4) formed by being bent into a tubular shape is provided at the front end (upper end) of each side surface portion 212 over the entire length.

  At both ends of the bottom surface portion 211 in the front-rear direction, holes 2110 for passing the wires connected to the connector 223 of the substrate 221 are provided at positions that are point-symmetric with respect to the center (center of gravity) of the bottom surface portion 211. Yes. The substrates 221 and 221 described above are fixed to the lower surface of the bottom surface portion 211 by a fixing piece (not shown) formed by cutting and raising a part of the bottom surface portion 211 of the mounting member 21, for example.

  As shown in FIG. 2, the first cover 23 is long and is formed in a semi-cylindrical shape whose upper side (attachment member 21 side) is opened by a diffusible material (for example, milky white acrylic resin). . The first cover 23 has a curved surface portion 231 having a convex lens shape in which the amount of downward protrusion increases as it approaches the center from both ends in the left-right direction (width direction).

  At both ends of the curved surface portion 231 in the left-right direction, projecting wall portions 233 projecting upward are formed over the entire length, and projecting portions 2330 projecting inward are provided at the tips of the projecting wall portions 233. (See FIG. 4). Further, at both ends of the curved surface portion 231 in the left-right direction, projecting portions 232 projecting outward from the projecting wall portion 233 are formed over the entire length (see FIG. 4).

  The second cover 24 has an end plate 241 formed in a semicircular shape with the same diffusive material as the first cover 23, and in the front-rear direction (longitudinal direction) of the first cover 23 by an appropriate attachment method. Attached to both ends.

  As shown in FIG. 2, the power supply device 25 includes a power supply circuit unit 251 and a case 252 for housing the power supply circuit unit 251. The power supply circuit unit 251 includes a substrate 2510 formed in a rectangular plate shape that is long in the front-rear direction. On one surface (lower surface) of the substrate 2510, circuit components for generating at least the lighting power of the LED 222 (transformers, diodes, 2511 is mounted.

  As shown in FIG. 2, the case 252 is formed in a rectangular box shape with one surface (lower surface) opened and long in the front-rear direction, and the case 252 is appropriately placed with the opening side facing the bottom surface portion 211 of the mounting member 21. It is attached to the attachment member 21 by an attachment method (for example, a screw).

  Next, the assembly procedure of the light source unit 2 will be described. First, the worker attaches the power supply device 25 to the upper surface side of the mounting member 21 and further fixes the LED module 22 to the lower surface of the mounting member 21 with the fixing piece. Thereafter, the operator passes the wire connected to the connector 223 of the LED module 22 through the hole 2110 provided in the bottom surface portion 211 of the mounting member 21, and connects the end portion to the output end of the power supply device 25.

  Further, the operator attaches the first cover 23 to the attachment member 21 with the opening side facing upward. At this time, the projections 2330 provided on the respective protruding wall portions 233 of the first cover 23 are hooked on the hooking portions 2120 provided on the respective side surface portions 212 of the attachment member 21, so that the first cover 23 is attached to the attachment member 21. It is attached (see FIG. 4). At this time, the curved surface portion 231 of the first cover 23 faces the substrate 221 attached to the bottom surface portion 211 of the attachment member 21.

  Finally, the operator attaches the second cover 24 to both ends of the first cover 23 in the front-rear direction. The light source unit 2 is assembled according to the above procedure.

  Then, the construction procedure of the lighting fixture 10 is demonstrated. First, the operator passes a power line (not shown) wired in advance on the back of the ceiling through the hole 1110 of the instrument body 1. Further, the operator passes a suspension bolt (not shown) exposed to the indoor side through the hole 1111, and then screws a nut (not shown) into the suspension bolt to attach the instrument body 1 to a ceiling material (not shown). Fix it.

  Thereafter, the operator connects the power line to a terminal block (not shown) attached to the instrument body 1 and connects the terminal block and the input end of the power supply device 25 with an electric wire (not shown). To do. Finally, the operator attaches the light source unit 2 to the instrument main body 1 by an attachment structure (not shown) provided on the instrument main body 1 and the attachment member 21, respectively. The lighting fixture 10 is attached to a ceiling material according to the above procedures (refer FIG. 3).

  Here, the dimension of the first cover 23 in the front-rear direction (longitudinal direction) is longer than the dimension in the front-rear direction of the attachment member 21, and both sides in the front-rear direction in the state of being attached to the attachment member 21 are larger than the attachment member 21. Projects outward. Further, the first cover 23 is set to have the same size in the front-rear direction as that of the instrument body 1 in the front-rear direction. Therefore, in a state where the light source unit 2 assembled integrally is attached to the instrument main body 1, the first cover 23 is disposed over the entire length of the instrument main body 1 (see FIG. 3).

  Thereby, for example, even when two lighting fixtures 10 are installed side by side in the front-rear direction (longitudinal direction of the fixture body 1), there is no gap between the two adjacent first covers 23, 23. It can suppress that the designability of the whole space including 10 falls.

  Incidentally, in the light source unit 2 of the present embodiment, the second cover 24 is attached to both ends in the front-rear direction (longitudinal direction) of the first cover 23, and the light guide 242 is integrally formed on the second cover 24. Has been. As shown in FIGS. 1A and 1B, the light guide unit 242 is formed in a rod shape that protrudes from the inner side surface of the end plate 241 in a direction orthogonal to the end plate 241, and the second cover 24. In the state attached to the first cover 23, the LED 22 is opposed to the LED 22 arranged at the end in the longitudinal direction of the attachment member 21.

  Therefore, when the LED module 22 is turned on, the light emitted from the LED 222 enters the light guide 242 and is repeatedly reflected inside the light guide 242 and guided to the end plate 241 (FIG. 1). (See arrow A1 in (b)). Thereby, the light irradiated outside through the end plate 241 can be increased. Here, in the example shown in FIGS. 1A and 1B, the light guide member 242 is configured by the light guide portion 242 provided integrally with the second cover 24, and the first cover 23 and the second cover 24 are formed. The cover is configured by.

  In the example shown in FIG. 1A and FIG. 1B described above, the light guide 242 that is a light guide member is provided integrally with the second cover 24, but the light guide member is separate from the cover. There may be. Hereinafter, the case where the light guide member is separate from the cover will be specifically described with reference to FIGS. 5 (a) and 5 (b).

  As shown in FIGS. 5A and 5B, the light source unit 2 includes a lens 27 as a light guide member instead of the light guide 242 described above. This lens 27 is a so-called plano-concave lens in which the exit surface 271 is a flat surface and the entrance surface 270 is a concave surface, and the surface facing the LED 222 disposed at the end in the longitudinal direction of the mounting member 21 is a concave surface. The angle of the lens 27 is set.

  Therefore, when the LED module 22 is turned on, the light emitted from the LED 222 is incident on the lens 27 through the incident surface 270, and the light incident on the lens 27 spreads outward from the output surface 271. It is emitted (see arrow A2 in FIG. 5B). Thereby, the light to the end part in the longitudinal direction of the 1st cover 23 and the end plate 241 of the 2nd cover 24 can be increased.

  In addition, as long as the dimension in the front-back direction of the 1st cover 23 is longer than the dimension in the front-back direction of the attachment member 21, it is not the same dimension as the dimension in the front-back direction of the instrument main body 1 like this embodiment. Also good. In this case, since the gap between the two adjacent first covers 23 and 23 can be reduced, the darkness generated in the gap can be reduced. As a result, the design of the entire space including the lighting fixture 10 is achieved. It is possible to suppress the deterioration of the property.

  In addition, the light guide member of the present embodiment is an example, and at least light from the LED 222 arranged at the end portion in the longitudinal direction of the mounting member 21 can be guided to the end portion side in the longitudinal direction of the first cover 23. Other configurations may be used.

  The light source unit 2 of the present embodiment includes a substrate 221, an attachment member 21, and covers (a first cover 23 and a second cover 24). The substrate 221 has one or more LEDs 222 (light emitting elements) mounted thereon. The attachment member 21 is formed in a long shape, and the substrate 221 is attached thereto. The cover is formed in a long length with a translucent material and is attached to the attachment member 21 so as to cover the substrate 221. The cover is attached to the attachment member 21 in a state where the same direction as the longitudinal direction of the attachment member 21 is the longitudinal direction and the same direction as the width direction of the attachment member 21 is the width direction. The cover has a length in the longitudinal direction longer than that of the attachment member 21, and both sides in the longitudinal direction protrude outward from the attachment member 21 when attached to the attachment member 21.

  Further, like the light source unit 2 of the present embodiment, at least a light guide member (light guide portion) that guides light from the LED 222 disposed at the end portion in the longitudinal direction of the mounting member 21 to the end portion side in the longitudinal direction of the cover. 242 or lens 27).

  Further, like the light source unit 2 of the present embodiment, the light guide member is preferably provided integrally with the cover.

  The lighting fixture 10 of this embodiment includes a light source unit 2 and a fixture body 1 to which the light source unit 2 is attached.

21 Mounting member 23 First cover (cover)
24 Second cover (cover)
221 substrate

Claims (4)

A substrate on which one or more light emitting elements are mounted;
An attachment member that is formed in a long shape and to which the substrate is attached;
A cover that is formed in a long length with a translucent material and is attached to the attachment member so as to cover the substrate;
The cover is attached to the attachment member in a state where 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 light source unit according to claim 1, wherein the cover has a longer dimension in the longitudinal direction than the attachment member, and both sides in the longitudinal direction protrude outward from the attachment member when attached to the attachment member.   2. The light source according to claim 1, further comprising a light guide member that guides light from the light emitting element disposed at an end portion in a longitudinal direction of the mounting member to an end portion side in the longitudinal direction of the cover. unit.   The light source unit according to claim 2, wherein the light guide member is provided integrally with the cover.   An illumination fixture comprising: the light source unit according to any one of claims 1 to 3; and a fixture main body to which the light source unit is attached.

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