JP7285457B1 - LED lighting device and LED lighting equipment - Google Patents

Abstract

An object of the present invention is to provide an LED lighting device or the like capable of reducing the thickness of the frame while ensuring the strength of the frame. An LED lighting device 3 includes a substrate 11 on which LEDs 12 are arranged, a long plate-shaped frame 20 to which the substrate 11 is attached, and a cover member 30 attached to the frame 20, The frame 20 includes a recess 20a in which the substrate 11 is arranged, a pair of lateral plate portions 23 positioned on both sides of the recess 20a in the lateral direction of the frame 20, and extending from the pair of lateral plate portions 23 in the second direction. The end of the LED 12 on the first direction side (the direction of the light emission side) is located on the second direction side (the light emission side) of the opening surface of the recess 20a. ), the tips of the pair of side plate portions 24 are positioned on the second direction side of the recess 20a, and each of the pair of lateral plate portions 23 has an inclined plate portion 23b. [Selection drawing] Fig. 3

Description

TECHNICAL FIELD The present invention relates to an LED lighting device and an LED lighting fixture including the LED lighting device.

LED lighting fixtures using LEDs (Light Emitting Diodes) are known. For example, as an LED lighting fixture installed on the ceiling, there is an LED lighting fixture that includes a long LED lighting device called a light bar and a long fixture body having a concave portion to which the LED lighting device is detachably attached. It is known (Patent Document 1).

The LED lighting device (LED unit) in the LED lighting fixture disclosed in Patent Document 1 includes a long substrate, a plurality of LEDs mounted on the substrate, and a long translucent substrate covering the plurality of LEDs. and an elongated frame that supports the substrate and to which the cover member is attached.

In the LED lighting device disclosed in Patent Document 1, the cross-sectional shape of the frame is U-shaped. The frame having a U-shaped cross-section includes, for example, a main plate portion to which a board on which LEDs are mounted is attached, and a pair of pairs extending from both ends in the short direction (width direction) of the main plate portion toward the ceiling. and a side plate portion.

Japanese Unexamined Patent Application Publication No. 2017-103248

However, if the cross-sectional shape of the frame is U-shaped as in the LED lighting device disclosed in Patent Document 1, the space area surrounded by the recessed portion of the fixture body and the frame becomes narrow. It becomes difficult to arrange various parts such as parts or electric wires.

On the other hand, in order to widen the space area surrounded by the concave portion of the device body and the frame, the length of the pair of side plates of the frame having a U-shaped cross section (the amount of protrusion from the main plate portion) is simply shortened to make the frame thinner. This may reduce the strength of the frame. In particular, when the frame is made of sheet metal and has a plate shape, shortening the length of the pair of side plate portions of the frame having a U-shaped cross section significantly reduces the strength of the frame.

If the strength of the frame is reduced, the LED lighting device may be deformed during construction when the LED lighting device is attached to the fixture body, or the LED lighting device may be bent after being pushed by the weight of the LED lighting device, electric wires, or the like. For this reason, a gap may occur between the LED lighting device and the opening edge of the concave portion of the fixture body. As a result, the wire protrudes from the gap, or the wire is caught in the gap, resulting in wire jamming. In addition, if a gap occurs between the LED lighting device and the fixture main body, the design of the lighting fixture is degraded.

The present invention has been made in view of such problems, and includes an LED lighting device capable of reducing the thickness of the frame while ensuring the strength of the plate-shaped frame, and the LED lighting device. An object of the present invention is to provide an LED lighting fixture.

In order to achieve the above object, one aspect of the LED lighting device according to the present invention includes a board on which LEDs are arranged, a long plate-shaped frame to which the board is attached, and a board that covers the LEDs. and a cover member attached to the frame, wherein the direction of the light emitting side of the LED with respect to the frame is defined as a first direction, and the direction opposite to the first direction is defined as a second direction. Further, the frame includes a main plate portion on which the substrate is arranged, a pair of standing plate portions erected from the main plate portion, and a pair of standing plate portions positioned on both sides of the main plate portion in the lateral direction of the frame and extending along the longitudinal direction of the frame. a pair of lateral plate portions extending along the direction and a pair of extension portions extending from the pair of lateral plate portions in the second direction, one of the pair of upright plate portions One end of the standing plate portion is connected to one end of the main plate portion, and the other end of one of the pair of standing plate portions is connected to the pair of horizontal plate portions one end of one of the horizontal plate portions, and one end of the other standing plate portion of the pair of standing plate portions is connected to the other end of the main plate portion, The other end of the other standing plate portion of the pair of standing plate portions is connected to one end of the other lateral plate portion of the pair of lateral plate portions, and the pair of extending portions one of the extending portions is connected to the other end of one of the pair of horizontal plate portions, and the other of the pair of extending portions is connected to the A concave portion is formed by the main plate portion and the pair of vertical plate portions, and the main plate portion is connected to the other end portion of the other horizontal plate portion of the pair of horizontal plate portions. and the end portion of the LED on the first direction side is located on the second direction side of the opening surface of the recess, and the tips of the pair of extending portions are located on the second direction side of the recess. Each of the pair of horizontal plate portions, which are positioned on the two direction sides, has an inclined plate portion that is inclined with respect to the main plate portion.

Further, one aspect of an LED lighting fixture according to the present invention includes the LED lighting device described above and a fixture body having a recess in which the LED lighting device is housed.

The thickness of the frame can be reduced while securing the strength of the frame.

FIG. 1 is a perspective view of an LED lighting fixture according to an embodiment. FIG. 2 is an exploded perspective view of the LED lighting fixture according to the embodiment. FIG. 3 is a cross-sectional view of the LED lighting fixture according to the embodiment. FIG. 4 is a cross-sectional view of the LED lighting fixture according to the embodiment. FIG. 5 is a perspective view of the LED lighting device according to the embodiment when viewed from the cover member side. FIG. 6 is a perspective view when the LED lighting device according to the embodiment is viewed from the back side. FIG. 7 is a cross-sectional perspective view of the LED lighting device according to the embodiment. FIG. 8 is an exploded perspective view of the LED lighting device according to the embodiment. FIG. 9 is a diagram for explaining how to attach the LED lighting device to the fixture body in the LED lighting fixture according to the embodiment. FIG. 10 is a diagram showing the relationship between the shape of the projecting portion of the frame and the strength of the frame in the LED lighting device. FIG. 11 is a diagram showing a first example of arrangement of construction wires in the LED lighting device according to the embodiment. FIG. 12 is a diagram showing a second example of arrangement of construction wires in the LED lighting device according to the embodiment. FIG. 13 is a diagram showing a third example of arrangement of construction wires in the LED lighting device according to the embodiment. FIG. 14 is a diagram showing a first modification of the LED lighting device according to the embodiment. FIG. 15 is a diagram showing a second modification of the LED lighting device according to the embodiment. FIG. 16 is a diagram showing a third modification of the LED lighting device according to the embodiment. FIG. 17 is a diagram showing a fourth modification of the LED lighting device according to the embodiment. FIG. 18 is a diagram showing a fifth modification of the LED lighting device according to the embodiment. FIG. 19 is a cross-sectional view showing a first modified example of the frame. FIG. 20 is a cross-sectional view showing a second modified example of the frame. FIG. 21 is a cross-sectional view showing a third modified example of the frame. FIG. 22 is a cross-sectional view showing a fourth modified example of the frame. FIG. 23 is a cross-sectional view showing a fifth modified example of the frame. FIG. 24 is a cross-sectional view showing a sixth modified example of the frame. FIG. 25 is a cross-sectional view showing a seventh modified example of the frame. FIG. 26 is a cross-sectional view showing an eighth modified example of the frame. FIG. 27 is a cross-sectional view showing a ninth modification of the frame. FIG. 28 is a cross-sectional view showing a tenth modification of the frame. FIG. 29 is a cross-sectional view showing an eleventh modified example of the frame. FIG. 30 is a cross-sectional view showing a twelfth modification of the frame. FIG. 31 is a cross-sectional view showing a thirteenth modification of the frame. FIG. 32 is a cross-sectional view showing a fourteenth modification of the frame. FIG. 33 is a cross-sectional view showing a fifteenth modification of the frame.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that each of the embodiments described below is a specific example of the present invention. Therefore, numerical values, components, arrangement positions and connection forms of components, steps and the order of steps, etc. shown in the following embodiments are examples and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest level concept of the present invention will be described as optional constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected to the substantially same structure, and the overlapping description is abbreviate|omitted or simplified. In each figure, the X-axis, Y-axis, and Z-axis represent the three axes of a three-dimensional orthogonal coordinate system. direction parallel to the XY plane) is the horizontal direction. The X-axis and the Y-axis are orthogonal to each other and both orthogonal to the Z-axis. In this specification, the terms “upper” and “lower” do not necessarily indicate upward (vertically upward) and downward (vertically downward) directions in absolute spatial recognition.

(Embodiment)
First, the configuration of an LED lighting fixture 1 according to an embodiment will be described with reference to FIGS. 1 to 4. FIG. FIG. 1 is a perspective view of an LED lighting fixture 1 according to an embodiment. FIG. 2 is an exploded perspective view of the LED lighting fixture 1. FIG. 3 and 4 are cross-sectional views of the LED lighting fixture 1. FIG. 3 and 4 show cross sections of the LED lighting fixture 1 cut along a plane parallel to the short direction. 3 and 4 are different cross sections.

As shown in FIGS. 1 to 4, the LED lighting fixture 1 according to this embodiment includes a fixture body 2 and an LED lighting device 3 attached to the fixture body 2. As shown in FIGS. The LED lighting fixture 1 is elongated. The total length of the LED lighting fixture 1 is, for example, 2 feet, 4 feet or 8 feet.

The fixture body 2 holds the LED lighting device 3 . The fixture body 2 is installed at a predetermined location in the building. The LED lighting fixture 1 in the present embodiment is a ceiling-mounted lighting fixture. Therefore, the device main body 2 is attached to the indoor ceiling using bolts or the like.

In this embodiment, the instrument main body 2 is made of sheet metal, and is formed into a box shape that is long and flat in the Y-axis direction by bending a metal plate. As shown in FIG. 2, the instrument main body 2 is provided with a concave portion 2a having a rectangular opening surface. The concave portion 2 a is provided in an elongated shape along the longitudinal direction of the instrument body 2 . The recessed portion 2 a is a storage portion in which the LED lighting device 3 is stored, and is provided over substantially the entire length of the fixture body 2 . As shown in FIGS. 2 and 3, on both sides of the concave portion 2a in the width direction of the instrument body 2, there are slopes extending from the opening edge 2a1 of the concave portion 2a and sloping upward (ceiling side) toward the outside. A surface 2b is provided respectively. As shown in FIG. 2, two slits 2c are provided on one of the pair of side surfaces of the recess 2a.

The LED lighting device 3 is an example of a lighting device that emits illumination light. In the present embodiment, the LED lighting device 3 is an LED unit using LEDs as light sources. The LED lighting device 3 is detachably attached to the concave portion 2a of the fixture body 2. As shown in FIG. For example, the LED lighting device 3 can be attached to the recess 2a of the fixture body 2, or the LED lighting device 3 attached to the recess 2a of the fixture body 2 can be removed from the recess 2a. Although the details will be described later, the LED lighting device 3 and the fixture main body 2 are locked by hooking the hook fittings 5 and the elastic holding members 6 (kick springs in this embodiment) provided on the LED lighting device 3 to the fixture main body 2 . It can be fixed by letting The hook metal fitting 5 is a metal fitting for attaching the LED lighting device 3 to the fixture main body 2 . In this embodiment, the hook fitting 5 is a slide fitting.

As shown in FIG. 3 , the LED lighting device 3 emits light by power supplied from a power supply device 4 housed in the fixture body 2 . The power supply device 4 is a device for supplying power to the light source section 10 of the LED lighting device 3 .

The power supply device 4 is arranged on the back side of the LED lighting device 3 . Specifically, the power supply device 4 is arranged in the concave portion 2 a of the instrument main body 2 . That is, the power supply device 4 is housed in the concave portion 2a of the instrument main body 2. As shown in FIG. In the present embodiment, the power supply device 4 is attached to the LED lighting device 3 as a part of the LED lighting device 3 and is integrated with the LED lighting device 3 . Note that the power supply device 4 may be arranged in the fixture main body 2 separately from the LED lighting device 3 instead of being integrated with the LED lighting device 3 . For example, the power supply device 4 may be fixed to the instrument main body 2 .

The power supply device 4 is configured by a power supply circuit that generates power for causing the LED lighting device 3 to emit light. Specifically, the power supply device 4 has a circuit board 4a such as a printed wiring board, and a plurality of electronic components 4b mounted on the circuit board 4a. In the present embodiment, the power supply device 4 further has a circuit case 4c that houses a circuit board 4a on which a plurality of electronic components 4b are mounted. The circuit case 4c is a cover that covers the circuit board 4a on which the electronic components 4b are mounted. The circuit case 4c is, for example, a metal housing made of a metal plate. The power supply circuit that constitutes the power supply device 4 converts, for example, AC power from an external power supply such as a commercial power supply into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and converts the DC power to the LED lighting device 3. supply the LEDs.

In the power supply device 4, a power terminal block 8 (see FIG. 2) is connected to a power line (VVF cable, etc.) inserted through a through-hole of the fixture body 2 from the ceiling and pulled out into the concave portion 2a of the fixture body 2. AC power is supplied through the A power line such as a VVF cable is a construction wire and is an example of a wire. The power terminal block 8 is installed in the concave portion 2a of the instrument main body 2. As shown in FIG.

Next, the detailed structure of the LED illumination device 3 will be described using FIGS. 5 to 8 while referring to FIGS. 1 to 4. FIG. 5 is a perspective view of the LED lighting device 3 according to the embodiment when viewed from the cover member 30 side, and FIG. 6 is a perspective view of the LED lighting device 3 when viewed from the back side. FIG. 7 is a cross-sectional perspective view of the same LED lighting device 3. As shown in FIG. FIG. 8 is an exploded perspective view of the same LED lighting device 3. As shown in FIG.

As shown in FIGS. 2, 5 and 6, the LED lighting device 3 is an elongated line light source called a light bar. The LED lighting device 3 emits light of a predetermined color such as white light.

As shown in FIGS. 3, 7 and 8, the LED lighting device 3 includes a light source section 10, a frame 20 in which the light source section 10 is arranged, a cover member 30 covering the light source section 10, and an end cap 40. Prepare. In this embodiment, the LED lighting device 3 includes a power supply device 4 . That is, the power supply device 4 is provided in the LED lighting device 3 . Specifically, the power supply device 4 is attached to the ceiling-side surface of the frame 20 . For example, as shown in FIG. 3 , the power supply device 4 is fixed to the frame 20 by screwing a portion of the circuit case 4 c to the main plate portion 21 of the frame 20 with screws 50 . Specifically, the circuit case 4c is a housing having an opening, and is composed of a bottom plate and side plates erected from the bottom plate. The circuit case 4c is arranged such that the opening of the circuit case 4c is located on the frame 20 side. That is, the portion of the circuit case 4c on the frame 20 side is open.

The light source unit 10 is a light emitting unit that emits illumination light. In this embodiment, the light source unit 10 is elongated. In this case, the elongated light source unit 10 may be one light source unit having a length substantially equal to the total length of the frame 20 in the longitudinal direction (Y-axis direction), or A plurality of them may be arranged. As shown in FIG. 8 , in this embodiment, two light source units 10 are arranged along the longitudinal direction of the frame 20 .

The light source unit 10 is an LED module using LEDs, and includes a substrate 11 and LEDs 12 arranged on the substrate 11, as shown in FIGS.

The substrate 11 is a mounting substrate for mounting the LEDs 12 thereon. In this embodiment, the substrate 11 is formed in a substantially rectangular shape elongated in the longitudinal direction (Y-axis direction) of the frame 20 . The thickness of the substrate 11 is, for example, 1.0 mm. As shown in FIG. 8, in this embodiment, two substrates 11 are arranged along the longitudinal direction of the frame 20 .

The board 11 is, for example, a printed wiring board (printed board) on which metal wiring is formed in a predetermined pattern. In addition, a resist made of an insulating resin material may be formed on the surface of the substrate 11 so as to cover the wiring in order to protect the wiring and ensure a dielectric strength voltage. The substrate 11 may be a single-sided wiring board in which wiring is formed only on the main surface on which the LEDs 12 are mounted, or may be a double-sided wiring board in which wiring is formed on both sides.

The base material constituting the substrate 11 includes a resin substrate made of an insulating resin material, a ceramic substrate made of a sintered body of a ceramic material such as alumina, and a metal substrate made of a metal material such as aluminum or copper. A metal base substrate or the like obtained by applying is used.

When the substrate 11 is made of a resin substrate, the resin substrate may be, for example, a glass epoxy substrate (CEM-3, FR-4, etc.) made of glass fiber and epoxy resin, craft paper or the like, and phenol resin. A paper phenol base material (FR-1, FR-2), a paper epoxy base material (FR-3) composed of paper and epoxy resin, or a polyimide substrate made of polyimide or the like can be used. Further, the substrate 11 may be a rigid substrate or a film-like flexible substrate.

Metal wiring formed on the substrate 11 is electrically connected to the power supply device 4 . In this case, electrodes or connector terminals formed on the substrate 11 and the power supply device 4 are connected by electric wires such as lead wires. An electric wire that connects the substrate 11 and the power supply device 4 is inserted through, for example, a through hole provided in the frame 20 .

The substrate 11 is arranged on the frame 20 . The substrate 11 has a first surface on which the LEDs 12 are mounted and a second surface facing the first surface. The first surface of the substrate 11 is the surface on the cover member 30 side, and the second surface of the substrate 11 is the surface on the frame 20 side. In this embodiment, the second surface of substrate 11 is in contact with frame 20 .

As shown in FIGS. 7 and 8, LEDs 12 are arranged on the substrate 11 . Specifically, a plurality of LEDs 12 are arranged on the first surface of the substrate 11 . In this embodiment, the plurality of LEDs 12 are mounted linearly in a line along the longitudinal direction (Y-axis direction) of the substrate 11 at predetermined intervals. Specifically, the plurality of LEDs 12 are mounted over substantially the entire length of the substrate 11 in the longitudinal direction. Therefore, the plurality of LEDs 12 are mounted along the longitudinal direction of the frame 20 and cover member 30 . In addition, along the longitudinal direction of the board|substrate 11, several LED12 may be mounted not in one row but in multiple rows. The plurality of LEDs 12 emit light by direct current supplied from the power supply device 4 via wires connecting the power supply device 4 and the substrate 11 .

LED12 is an example of a light emitting element. In this embodiment, each of the plurality of LEDs 12 is an individually packaged SMD structure LED element (LED light source). Therefore, the light source unit 10 is an SMD type LED module.

The SMD type LED 12 includes a resin or ceramic white container (package), an LED chip (bare chip) arranged in the container, and a sealing member that seals the LED chip. In this embodiment, the LED 12 is a white LED element that emits white light. In this case, for example, a blue LED chip that emits blue light when energized is used as the LED chip, and a silicone resin containing a yellow phosphor such as YAG ( phosphor-containing resin) is used.

The light source unit 10 configured as described above is arranged in the frame 20 . Specifically, the substrate 11 of the light source section 10 is arranged on the frame 20 .

The frame 20 is an elongated attachment member (base member) to which the light source unit 10 is attached. Specifically, the substrate 11 of the light source unit 10 is attached to the frame 20 .

The frame 20 is elongated in the Y-axis direction, similar to the light source section 10 and the instrument main body 2 . The light source section 10 is supported by the frame 20 . In this embodiment, the frame 20 not only supports the light source section 10 but also supports the cover member 30 . Specifically, by mounting the substrate 11 on which the LEDs 12 are arranged on the frame 20 and fixing the substrate 11 to the frame 20 , the substrate 11 on which the LEDs 12 are arranged is supported by the frame 20 .

The frame 20 has a plate shape. In the present embodiment, the frame 20 is made of sheet metal and is composed of a metal plate. The frame 20 is formed into a predetermined shape by, for example, rolling and/or pressing a sheet metal (metal plate) made of SPCC (Steel Plate Cold Commercial). . The thickness of the metal plate forming frame 20 is, for example, 0.2 mm to 2 mm. In the present embodiment, the frame 20 is formed by sheet metal processing, so the metal plate forming the frame 20 preferably has a thickness of 1 mm or less. Specifically, the thickness of the metal plate forming the frame 20 was set to 0.5 mm. The method of manufacturing the frame 20 is not limited to roll forming and press working, and may be aluminum extrusion molding or the like.

As shown in FIGS. 3 and 4 , the plate-shaped frame 20 has a main plate portion 21 , a pair of upright plate portions 22 , a pair of horizontal plate portions 23 , and a pair of side plate portions 24 . As shown in FIG. 8, the main plate portion 21, the pair of vertical plate portions 22, the pair of horizontal plate portions 23, and the pair of side plate portions 24 all extend along the longitudinal direction (Y-axis direction) of the frame 20. are doing. Further, as shown in FIGS. 3 and 4, in the present embodiment, the frame 20 is formed symmetrically with respect to the center of the frame 20 in the lateral direction in the XZ cross section. do not have.

The main plate portion 21 is the body portion of the frame 20 . The main plate portion 21 is a plate-like body having a flat plate shape as a whole and having a constant thickness. As shown in FIG. 3 , the light source section 10 is arranged on the main plate section 21 . Specifically, the substrate 11 on which the LEDs 12 are arranged is placed on the main plate portion 21 . That is, the main plate portion 21 supports the substrate 11 . The light source unit 10 arranged on the main plate portion 21 is attached to the main plate portion 21 . Specifically, the substrate 11 of the light source section 10 is attached to the main plate section 21 . In this embodiment, the substrate 11 and the main plate portion 21 are in contact with each other. In addition, although LED12 of the light source part 10 is arrange|positioned at the center part of the width direction of the main-plate part 21, it does not restrict to this.

The main plate portion 21 has a first surface that faces the substrate 11 and a second surface that faces the first surface. When the LED lighting fixture 1 is installed on the ceiling, the frame 20 is arranged such that the first surface and the second surface of the main plate portion 21 are substantially parallel to the ceiling surface. In this case, the first surface of the main plate portion 21 is the floor-side surface, and the second surface of the main plate portion 21 is the ceiling-side surface.

As shown in FIG. 3, the main plate portion 21 is located closer to the ceiling than the opening surface of the recess 2a of the instrument main body 2 (that is, to the bottom surface of the recess 2a). In the present embodiment, the LED 12 is also positioned closer to the bottom surface of the recess 2a than the opening surface of the recess 2a of the fixture body 2. As shown in FIG. Specifically, the main plate portion 21 and the LED 12 are located closer to the ceiling than the opening edge 2a1 of the recess 2a. Thereby, since the distance between the cover member 30 and the LEDs 12 can be increased, it is possible to suppress luminance unevenness (graininess) of the plurality of linearly arranged LEDs 12 .

As shown in FIG. 8, the main plate portion 21 is formed with a claw portion 21a formed by cutting and raising a portion of the frame 20 made of a metal plate. The substrate 11 placed on the main plate portion 21 is fixed to the main plate portion 21 by engaging with the claw portions 21a. In this case, for example, the board 11 may be slid to lock the board 11 to the claw portion 21a, or the board 11 may be locked to the claw portion 21a by crimping the claw portion 21a. The method of fixing the main plate portion 21 and the substrate 11 is not limited to the locking structure using the claw portions 21a. . Moreover, although the main plate portion 21 and the substrate 11 are in contact with each other, the present invention is not limited to this. For example, another member such as a heat conductive sheet may be inserted between the main plate portion 21 and the substrate 11 . Further, the main plate portion 21 is provided with a through hole through which an electric wire for electrically connecting the wiring of the substrate 11 and the power supply device 4 is inserted.

The pair of standing plate portions 22 are standing plate portions erected on the main plate portion 21 . Specifically, the pair of standing plate portions 22 are erected from one end of the main plate portion 21, and the other of the pair of standing plate portions 22 is erected from the other end of the main plate portion 21. ing. The upright plate portion 22 and the horizontal plate portion 23 are provided between the main plate portion 21 and the side plate portion 24 . Each of the pair of standing plate portions 22 has a flat plate shape.

As shown in FIG. 3 , in the present embodiment, each of the pair of upright plate portions 22 has a main surface orthogonal to the main surface of the main plate portion 21 and extends in a direction orthogonal to the lateral direction of the frame 20 . exist. Specifically, each of the pair of upright portions 22 extends along the Z-axis direction. Note that the upright plate portion 22 may be formed so as to be inclined with respect to the main plate portion 21 .

As shown in FIGS. 3 and 4, the main plate portion 21 and the pair of standing plate portions 22 form a concave portion 20a. The bottom of the recess 20 a is the main plate portion 21 . Therefore, the substrate 11 on which the LEDs 12 are mounted is arranged on the bottom portion (main plate portion 21) of the concave portion 20a. Thus, the frame 20 has a recess 20a in which the substrate 11 is arranged. A side portion of the concave portion 20a is a vertical plate portion 22. As shown in FIG. In the present embodiment, the cross-sectional shape of the concave portion 20a is U-shaped. That is, the cross-sectional shape of the spatial region of the recess 20a (the region surrounded by the main plate portion 21 and the pair of upright plate portions 22) is rectangular.

Note that the cross-sectional shape of the concave portion 20a does not have to be U-shaped. That is, the cross-sectional shape of the spatial region of the recess 20a does not have to be rectangular. For example, the cross-sectional shape of the spatial region of the recess 20a may be trapezoidal. In this case, the main plate portion 21 corresponds to the lower or upper base of the trapezoidal recess 20a, and the upright plate portion 22 corresponds to the side of the trapezoidal recess 20a that is inclined with respect to the main plate portion 21.

The light source unit 10 arranged at the bottom of the recess 20a is accommodated in the recess 20a. In the present embodiment, the depth of recess 20a is greater than the height (thickness) of light source section 10, and light source section 10 is accommodated so as not to protrude from recess 20a. That is, the LED 12 is housed in the recess 20a. Therefore, the floor-side end (light-emitting surface) of the LED 12 of the light source unit 10 is located closer to the ceiling than the opening surface of the recess 20a. In this case, the floor-side end of the LED 12 may be located at a position recessed from the opening surface of the recess 20a, or may be flush with the opening surface of the recess 20a. Since the distance between the LEDs 12 and the main portion 31 of the cover member 30 can be lengthened by housing the LEDs 12 in the recesses 20a in this way, the luminance unevenness ( graininess) can be suppressed.

In addition, in the present embodiment, the LED 12 of the light source unit 10 is housed in the recess 20a so as not to protrude from the recess 20a, but the present invention is not limited to this. For example, part or all of the LED 12 may protrude from the recess 20a. Even in this case, the substrate 11 of the light source unit 10 is preferably arranged so as not to protrude from the recess 20a, and the depth of the recess 20a is larger than the thickness of the substrate 11 of the light source unit 10. It's good to be

Further, as shown in FIG. 4, when the depth of the recessed portion 20a of the frame 20 is a and the width of the recessed portion 20a is w1, the relational expression w1≧10×a is preferably satisfied. That is, the ratio between the depth a of the recess 20a and the width w1 of the recess 20a is preferably 1:10 or more. As a result, even if the light source unit 10 is housed in the recess 20a, the light emitted from the LED 12 hits the corner of the opening surface of the recess 20a (the connecting portion between the vertical plate portion 22 and the horizontal plate portion 23) and is blocked. can be suppressed. That is, by setting w1≧10×a, it is possible to make the light emitted from the LED 12 less likely to be eclipsed. In this case, as shown in FIG. 4, when the width of the concave portion 20a is w1 and the width of the lateral plate portion 23 is w2, the relational expression w1>2×w2 is preferably satisfied.

By forming the concave portion 20a in the frame 20 in this way, the frame 20 is formed with a pair of projecting portions 20b. In the present embodiment, the recessed portion 20a is formed so as to be recessed toward the ceiling, so that the pair of protruding portions 20b are formed so as to protrude toward the floor. Each of the pair of protruding portions 20b is composed of a horizontal plate portion 23 and an upright plate portion 22. As shown in FIG. The recessed portion 20a and the pair of protruding portions 20b can be formed by deforming a metal plate forming the frame 20 by press working or the like. Therefore, the plate thicknesses of the main plate portion 21, the vertical plate portion 22, the horizontal plate portion 23, and the side plate portions 24 are the same.

The horizontal plate portion 23 is positioned beside the recess 20a. In the present embodiment, the lateral plate portions 23 are positioned on both sides of the recess 20a in the lateral direction of the frame 20. As shown in FIG. That is, a pair of lateral plate portions 23 are formed so as to sandwich the concave portion 20a. Specifically, one of the pair of horizontal plate portions 23 is positioned on one side of the recess 20a in the lateral direction of the frame 20, and the other of the pair of horizontal plate portions 23 is positioned on the recess 20a in the lateral direction of the frame 20. located on the other side of That is, one of the pair of horizontal plate portions 23 is positioned on one side of the main plate portion 21 in the short direction of the frame 20, and the other of the pair of horizontal plate portions 23 is positioned on the side of the main plate portion 21 in the short direction of the frame 20. located on the other side. Each of the pair of horizontal plate portions 23 is connected to the floor-side end of the standing plate portion 22 and extends outward from the floor-side end of the standing plate portion 22 .

Further, the first direction, which is the direction of the light emission side of the LED 12 with respect to the main plate portion 21 as a reference, is the direction toward the floor, and the direction opposite to the floor side direction (first direction) with respect to the main plate portion 21. At least a portion of each of the pair of horizontal plate portions 23 is located closer to the floor (first direction side) than the main plate portion 21 when a certain second direction is the ceiling side direction. In the present embodiment, the entire horizontal plate portion 23 is located closer to the floor than the main plate portion 21 is. Therefore, the pair of protruding portions 20b each composed of the upright plate portion 22 and the horizontal plate portion 23 are located closer to the floor than the main plate portion 21 is.

Thereby, a space area S1 is formed on the ceiling side of each projecting portion 20b. The spatial region S1 is a region surrounded by the protrusions 20b on the ceiling side of the frame 20. As shown in FIG. That is, the spatial region S1 is a region surrounded by the upright plate portion 22 and the horizontal plate portion 23 on the ceiling side of the frame 20 . In the present embodiment, the side plate portion 24 is provided on the opposite side of the vertical plate portion 22 in the horizontal plate portion 23, so that the space region S1 is surrounded by the vertical plate portion 22, the horizontal plate portion 23, and the side plate portion 24. It is a recessed area recessed toward the floor.

Functional parts may be housed in this spatial region S1, and wires inside the fixture that are wired at the factory when manufacturing the LED lighting device 3 may be housed. Since the space area S1 is a recessed portion, the functional parts and the wires in the appliance can be easily accommodated in the space area S1. In particular, since the side plate portion 24 exists as the outer wall of the space area S1, the electric wire in the appliance stored in the space area S1 is less likely to protrude from the space area S1. As a result, it is possible to prevent the electric wires in the appliance from protruding and causing wire jamming.

A functional component housed in the spatial region S1 is, for example, a function expansion module. Examples of function expansion modules include a sensor unit including various sensors such as a human sensor and a brightness sensor, a wireless module including an antenna for receiving wireless signals and a control circuit, an infrared sensor including a light receiving element for receiving infrared signals and a control circuit. It may be a module, a pull switch, or a second light source different from the LED 12 (first light source) mounted on the substrate 11, or the like. The radio signal or the infrared signal is, for example, a remote control signal for turning on/off the LED 12 or adjusting the light/color, or a setting signal for making various settings of the LED lighting device 3 . The second light source includes a light source for monitor display (monitor lamp), a light source for controlling the light distribution of the illumination light emitted from the cover member 30 (for example, a light source for wide light distribution), and a light source for rendering. Color light sources (for example, red, blue, green, etc. LED light sources) or emergency light sources that turn on in an emergency. When using an emergency light source as the second light source, the cover and/or the cover member 30 covering the second light source may be made of a flame-retardant material such as glass.

The intra-appliance wires housed in the spatial region S1 are, for example, wires connected to the power supply device 4 or wires connecting the plurality of light source units 10 to each other. Among them, the wires connected to the power supply 4 include a power supply line connecting the power supply 4 and the light source unit 10, a power supply line connecting the power supply 4 and the power supply terminal block 8, and a control line connected to a function expansion module (sensor, etc.), which will be described later.

In addition, the spatial region S1 may accommodate a plurality of intra-appliance electric wires instead of one intra-appliance electric wire. One or a plurality of intra-instrument electric wires housed in the space area S1 are fixed to the frame 20 by a fixing member such as a tape or metal fittings. In this case, it is preferable to use the space area S1 to attach a tape or attach a metal fitting. For example, when a metal fitting is used to fix the wire inside the device, the metal fitting is fixed to the space region S1 so as to cover the space region S1 in which the wire inside the device is accommodated. In this case, it is preferable to arrange the fitting so as to stretch between the upright plate portion 22 and the side plate portion 24 .

Note that the intra-appliance electric wire does not have to be housed in the space area S1. In this case, the wires in the fixture may be arranged on the ceiling-side surface of the main plate portion 21 of the frame 20, and the wires in the fixture may be adhesively fixed with a tape. However, if the tape is attached only to the main plate portion 21, the tape is likely to come off. Therefore, in this case, it is preferable to apply the tape using the space area S1. For example, it is preferable to arrange the wires in the appliance on the surface of the main plate portion 21 on the ceiling side, and attach the tape so as to straddle the main plate portion 21 and the upright plate portion 22 . As a result, the tape is attached to two surfaces facing in different directions, so that peeling of the tape can be suppressed.

Moreover, the parts stored in the space area S1 are not limited to the functional parts and the wires in the appliance. For example, the space area S1 may house a part of a screw (screw head, screw foot) and a fixing member such as a caulking part, or may house a part or all of the electronic component 4b of the power supply device 4. may be As the electronic component 4b of the power supply device 4 housed in the space area S1, tall components such as an electrolytic capacitor and an infrared light receiving section can be considered.

As shown in the enlarged view of FIG. 3, each of the pair of horizontal plate portions 23 is composed of a plurality of plate portions. In the present embodiment, the horizontal plate portion 23 is composed of two plate portions. and a sloped plate portion 23b (second plate portion) that slopes against. Both the parallel plate portion 23a and the inclined plate portion 23b are flat plate-shaped.

In the horizontal plate portion 23 , the parallel plate portion 23 a extends in the lateral direction (width direction) of the frame 20 , and the inclined plate portion 23 b extends in a direction inclined with respect to the lateral direction of the frame 20 . are doing. In the present embodiment, the inclined plate portion 23b is inclined so as to widen toward the ceiling. Therefore, the projecting portion 20b composed of the upright plate portion 22 and the horizontal plate portion 23 is configured to be inclined outward as a whole. The inclined plate portion 23 b is positioned outside the parallel plate portion 23 a and connected to the end portion of the side plate portion 24 . In this embodiment, the parallel plate portion 23a is longer than the inclined plate portion 23b.

As shown in FIGS. 3 and 4, at least a portion of the pair of projections 20b formed on the frame 20 is located closer to the floor than the opening of the recess 2a of the instrument body 2. As shown in FIGS. That is, at least part of the pair of projecting portions 20b is located closer to the floor than the opening edge 2a1 of the concave portion 2a of the instrument main body 2 is. In the present embodiment, the pair of lateral plate portions 23 are located closer to the floor than the opening surface of the concave portion 2a of the tool body 2. As shown in FIG. Specifically, both the parallel plate portion 23a and the inclined plate portion 23b of the horizontal plate portion 23 are located closer to the floor than the opening surface of the recess 2a.

The protruding portion 20b composed of the horizontal plate portion 23 and the upright plate portion 22 may be configured to incline inward. In this case, the inclined plate portion 23b of the horizontal plate portion 23 is located inside the parallel plate portion 23a and is connected to the end portion of the main plate portion 21, and the vertical plate portion 22 is connected to the parallel plate portion 23a of the horizontal plate portion 23. It is located outside and connected to the end of the side plate portion 24 .

As shown in FIGS. 3 and 4 , the pair of side plate portions 24 are plate-shaped side portions and are formed as a pair of leg portions (feet) of the frame 20 . Each of the pair of side plate portions 24 is an extension portion extending from the end portion of the horizontal plate portion 23 toward the ceiling (second direction side). Specifically, one of the pair of side plate portions 24 extends from one outer end of the pair of lateral plate portions 23 toward the ceiling, and the other of the pair of side plate portions 24 extends from the pair of lateral plate portions 23 . It extends from the other outer end of the plate portion 23 toward the ceiling. That is, the pair of side plate portions 24 extend from the outer ends of the projecting portions 20b in the lateral direction of the frame 20 toward the ceiling. Specifically, each of the pair of side plate portions 24 extends in the Z-axis direction.

Each of the pair of side plate portions 24 extends from the outer end portion of each horizontal plate portion 23 toward the ceiling beyond the position of the main plate portion 21 . Therefore, the tip of each side plate portion 24 (extending portion) is positioned closer to the ceiling (second direction side) than the main plate portion 21 . That is, the tip of the side plate portion 24 is located closer to the ceiling than the recess 20a. In this embodiment, the side plate portion 24 is connected to the inclined plate portion 23b of the horizontal plate portion 23. As shown in FIG.

In the present embodiment, the connecting portion between the side plate portion 24 and the horizontal plate portion 23 is positioned closer to the floor (first direction side) than the main plate portion 21, which is the bottom portion of the recess 20a. This makes it easier for the light emitted from the LED 12 to reach the space formed in the vicinity of the outer end 31 a of the cover member 30 .

In addition, the length (extending amount) of the side plate portion 24 is longer than the depth of the concave portion 20a. That is, as shown in FIG. 4, when the depth of the concave portion 20a is a and the length of the side plate portion 24 is b (see also FIG. 3), the relational expression of b≧a is preferably satisfied. In this case, the upper limit of the length b of the side plate portion 24 is not particularly limited. It's good to be In other words, the ratio of the depth of the concave portion 20a to the length of the side plate portion 24 is preferably 1:2 or less. As a result, the thickness of the entire frame 20 in the Z-axis direction can be shortened, so that the frame 20 can be thinned.

The connecting portion between the side plate portion 24 and the horizontal plate portion 23 may be located closer to the ceiling than the main plate portion 21 is. In this case as well, the length b of the side plate portion 24 is preferably longer than the depth a of the recess 20a (that is, b>a), but the length b of the side plate portion 24 is greater than the depth a of the recess 20a. may be shorter than the depth a. In this case, the lower limit of the length b of the side plate portion 24 is not particularly limited. It should be noted that the depth a of the concave portion 20a is preferably 3 mm or more.

As shown in FIGS. 3 and 4, the tip portions of the pair of side plate portions 24 are provided with bent portions 24a formed so as to be bent. In the present embodiment, the bent portion 24a is a folded portion formed by folding back the tip portion of the side plate portion 24 in the thickness direction. Therefore, the bent portion 24a is composed of a folded portion and a portion opposite to the folded portion (non-folded portion). The folded portion of the folded portion 24a can be formed, for example, by curling the tip portion of the side plate portion 24 and rolling it up. The bent portion 24a is not limited to being formed by curling, and may be formed by hemming or the like. Although the bent portion 24a formed by curling or hemming is bent inward in the width direction, the bent portion 24a is not limited to this, and may be bent outward in the width direction. Also, the bent portion 24a may not be formed.

Attachment portions 33 of the cover member 30 are attached to each of the pair of side plate portions 24 . Specifically, the cover member 30 is fixed to the frame 20 by engaging the bent portion 24a of the side plate portion 24 with the concave portion 33a provided in the mounting portion 33 of the cover member 30 by snap-in. can be done.

The light source section 10 supported by the frame 20 is covered with a cover member 30 . Specifically, the cover member 30 covers all the LEDs 12 in the light source section 10 . As shown in FIG. 3 , the cover member 30 also covers the substrate 11 of the light source unit 10 and is arranged to face the substrate 11 so as to cover the plurality of LEDs 12 . Thus, the cover member 30 is attached to the frame 20 so as to cover the LEDs 12 .

The cover member 30 is an example of a translucent cover having translucency, and transmits light emitted from the LED 12 . In the present embodiment, the cover member 30 is a diffusion cover that not only has translucency but also has diffusivity. Therefore, the light of the LED 12 incident on the cover member 30 passes through the cover member 30 while being diffused (scattered) by the cover member 30 .

As shown in FIGS. 6 and 7, the cover member 30 further covers the frame 20 on which the light source section 10 is arranged. In this embodiment, the cover member 30 covers the entire frame 20 on which the light source section 10 is arranged. The cover member 30 is elongated in the Y-axis direction, similarly to the light source section 10 and the frame 20 .

The cover member 30 is attached to the frame 20 . A cylinder is formed by the cover member 30 and the frame 20, and the light source unit 10 is housed in this cylinder.

As shown in FIGS. 3 and 7, the cover member 30 includes a main portion 31 having a surface facing the LED 12, a pair of extension portions 32 connected to the main portion 31, and a pair of extension portions 32. and a pair of mounting portions 33 connected to the .

As shown in the enlarged view of FIG. 3, there is a gap G between the cover member 30 and the inner surface of the concave portion 2a of the instrument body 2. As shown in FIG. In this embodiment, the gap G is a gap between the mounting portion 33 and the inner surface of the recess 2a.

The main portion 31 is a main body portion of the cover member 30, and allows the light from the LED 12 to pass therethrough and irradiate the light to the outside. The main portion 31 constitutes the appearance of the cover member 30 . As shown in FIG. 8, the main portion 31 is elongated in the Y-axis direction and has a gutter shape. The main portion 31 has, for example, a flat, substantially semi-cylindrical shape. Therefore, the main portion 31 has an elongated rectangular opening end surface extending in the Y-axis direction. Moreover, the cross-sectional shape of the main portion 31 when cut along the X-axis direction has a curved shape curved in a substantially circular arc shape. The shape of the main portion 31 is not limited to the bucket-shaped R shape, and may be a square shape such as a U-shape, or a square shape with a part of the side surface constricted. .

The main portion 31 has an outer end portion 31a located outside the projecting portion 20b of the frame 20 in the lateral direction of the frame 20 . Specifically, the outer end portion 31 a is a portion of the main portion 31 located outside the attachment portion 33 . An outer end portion 31a of the main portion 31 faces the opening edge 2a1 of the concave portion 2a of the instrument main body 2. As shown in FIG. The opening edge 2a1 of the recess 2a is a flat surface parallel to the XY plane.

The pair of extended portions 32 are plate-shaped pieces having a uniform thickness. In the present embodiment, the pair of extending portions 32 are formed symmetrically with respect to the center of the cover member 30 in the lateral direction in the XZ cross section, but the present invention is not limited to this.

Each extending portion 32 covers at least a portion of the lateral plate portion 23 from the outer extending portion 32a positioned outside the lateral plate portion 23 of the frame 20 in the lateral direction of the frame 20 and from the lateral extending portion 32a. and an inner extension portion 32b extending toward the LED 12 side.

In the present embodiment, the outwardly extending portion 32 a is positioned outside the mounting portion 33 , and the inwardly extending portion 32 b is positioned inside the mounting portion 33 . In this case, as shown in FIG. 3, the outer extending portion 32a is a portion formed in a flat plate shape, and the inner extending portion 32b is formed so as to be bent with the horizontal plate portion 23 of the frame 20 as a boundary. part. The inner extending portion 32b is bent so as to cover the projecting portion 20b of the frame 20. As shown in FIG.

The extending portion 32 extends inwardly of the cover member 30 from the inner surface of the main portion 31 . That is, the extension portion 32 extends from the inner surface of the main portion 31 toward the LED 12 side. The extension part 32 extends toward the LED 12 from a position closer to the ceiling (second direction side) than the portion closest to the floor (first direction side) of the protrusions 20 b of the frame 20 on the inner surface of the main part 31 . extended. In the present embodiment, the parallel plate portion 23a of the horizontal plate portion 23 is the portion of the projecting portion 20b of the frame 20 that is closest to the floor. In other words, the extension portion 32 extends toward the LED 12 from a position closer to the ceiling than the parallel plate portion 23a. Specifically, the extended portion 32 is connected to the tip of the outer end portion 31 a of the main portion 31 . Therefore, in the extending portion 32, the outer extending portion 32a is connected to the tip of the outer end portion 31a of the main portion 31, and the outer extending portion 32a extends from the outer end portion 31a of the main portion 31 toward the LED 12 side. exist.

In this way, the extending portion 32 extends toward the LED 12 from a position closer to the ceiling than the floor-most portion of the horizontal plate portion 23 of the frame 20 so as to cover a portion of the horizontal plate portion 23 . extended. Accordingly, in the vicinity of the outer end portion 31a of the cover member 30, a space area that spreads toward the ceiling outside the projecting portion 20b of the frame 20 can be formed. As a result, even if the frame 20 is provided with the protruding portion 20b that protrudes toward the floor, the light emitted from the LED 12 that does not pass through the main portion 31 of the cover member 30 and is reflected by the inner surface of the main portion 31 is It is possible to wrap around the space area formed near the outer end portion 31 a of the cover member 30 . Therefore, the light emitted from the LED 12 can sufficiently reach the outer end portion 31a of the main portion 31 of the cover member 30, so that the light can reach the vicinity of the outer end portion 31a of the main portion 31 of the cover member 30. can illuminate. Therefore, the cover member 30 can be illuminated over the entire width direction (X-axis direction), and it is possible to prevent the end portions of the cover member 30 in the width direction from becoming dark. That is, it is possible to reduce the darkness of the end portions in the width direction of the cover member 30 due to the projecting portions 20b of the frame 20 .

Further, by providing the extended portion 32 in the cover member 30, the luminous flux (upward luminous flux) of the illumination light emitted from the LED lighting device 3 toward the ceiling side can be reduced. As a result, the luminous flux of illumination light emitted from the LED lighting device 3 toward the floor side can be increased, so that the illuminance directly below the LED lighting fixture 1 can be improved. Thereby, when installing a plurality of LED lighting fixtures 1, the installation number of the LED lighting fixtures 1 can be reduced.

The outer extending portion 32a of the extending portion 32 has a portion that overlaps the gap G between the inner surface of the recess 2a and the mounting portion 33 in the direction toward the floor or the direction toward the ceiling (that is, in the Z direction). In addition, the outwardly extending portion 32a faces the opening edge 2a1 of the recess 2a. Therefore, the outwardly extending portion 32a is formed so as to straddle the gap G. As shown in FIG. With this configuration, the vicinity of the outer end portion 31a of the main portion 31 of the cover member 30 can be sufficiently illuminated, so that the main portion 31 of the cover member 30 can be illuminated over the entire width direction (X-axis direction). Therefore, it is possible to prevent the end portions in the width direction of the cover member 30 from becoming dark.

A portion of the outwardly extending portion 32a facing the opening edge 2a1 and the outer end portion 31a of the main portion 31 form a projecting portion projecting outward from the mounting portion 33. As shown in FIG. Specifically, the projecting portion is formed to have a V-shaped cross section in the XZ cross section. In addition, the outwardly extending portion 32a does not protrude outward from the widthwise outer end portion of the opening surface of the concave portion 2a of the instrument main body 2. As shown in FIG. Specifically, the outwardly extending portion 32a does not protrude outward in the Y-axis direction from the opening edge 2a1 of the recessed portion 2a. Specifically, the connecting portion (vertex of the V-shape) between the outwardly extending portion 32a and the outer end portion 31a of the main portion 31 is substantially flush with the inclined surface 2b of the instrument main body 2. As shown in FIG. As a result, the inclined surface 2b of the fixture body 2 and the surface of the main portion 31 of the cover member 30 form a continuous surface, so that the design of the LED lighting device 3 is improved.

The outwardly extending portion 32 a is a contact portion that can contact the opening edge 2 a 1 of the concave portion 2 a of the instrument body 2 . When the LED lighting device 3 is housed in the recessed portion 2a of the fixture body 2, the outwardly extending portion 32a may or may not be in contact with the opening edge 2a1. That is, there may be a gap between the outwardly extending portion 32a and the opening edge 2a1, or the outwardly extending portion 32a and the opening edge 2a1 may be in close contact with each other.

At least part of the extension part 32 has a shape along part of the frame 20 . In the present embodiment, at least part of the extended portion 32 has a shape along the projecting portion 20b of the frame 20. As shown in FIG. Specifically, as described above, the inner extension portion 32b of the extension portion 32 has a shape along the projecting portion 20b of the frame 20. As shown in FIG.

As shown in FIG. 3, the inner extending portion 32b is bent so as to protrude toward the floor. That is, the inwardly extending portion 32b is formed to have a protruding portion that protrudes toward the floor, like the protruding portion 20b of the frame 20. As shown in FIG. The protruding portion 20b of the frame 20 protrudes toward the bent portion (protruding portion) of the inner extension portion 32b. Therefore, the projecting portion 20b of the frame 20 is formed to fit the projecting portion of the inner extension portion 32b.

Also, at least part of the inner extension portion 32b can abut on the frame 20 . Specifically, at least a portion of the inner extension portion 32b can abut on a portion of the projecting portion 20b of the frame 20. As shown in FIG. More specifically, the inner extending portion 32b can abut against the parallel plate portion 23a and the inclined plate portion 23b of the horizontal plate portion 23. As shown in FIG.

In this embodiment, the inner extension portion 32b includes a first surface portion 32b1 facing the parallel plate portion 23a of the horizontal plate portion 23, a second surface portion 32b2 facing the inclined plate portion 23b of the horizontal plate portion 23, and a second surface portion 32b2 facing the inclined plate portion 23b of the horizontal plate portion 23. It has a third surface portion 32b3 that inclines from the inner end portion of the first surface portion 31b1 toward the LED 12 side.

In this manner, when the LED lighting device 3 is housed in the recessed portion 2a of the fixture main body 2, at least a portion of each extension portion 32 may be in contact with the horizontal plate portion 23, or may be in contact with the horizontal plate portion 23. They do not have to be in contact with each other. For example, the first surface portion 32b1 and the second surface portion 32b2 of the inner extension portion 32b of the extension portion 32 and the parallel plate portion 23a and the inclined plate portion 23b of the horizontal plate portion 23 of the frame 20 may be in contact with each other. , may not be in contact.

In each of the pair of extension portions 32, the first surface portion 32b1 and the second surface portion 32b2 of the inner extension portion 32b are flat like the parallel plate portion 23a and the inclined plate portion 23b of the horizontal plate portion 23. As shown in FIG.

Also, in the inner extending portion 32b, the first surface portion 32b1 is a parallel plate portion parallel to the main plate portion 21 of the frame 20, like the parallel plate portion 23a of the horizontal plate portion 23 of the frame 20. As shown in FIG. The second surface portion 32 b 2 is an inclined plate portion that is inclined with respect to the main plate portion 21 of the frame 20 in the same manner as the inclined plate portion 23 b of the horizontal plate portion 23 of the frame 20 . The first surface portion 32b1 of the inner extending portion 32b and the parallel plate portion 23a of the horizontal plate portion 23 are parallel and face each other. Similarly, the second surface portion 32b2 of the inner extending portion 32b and the inclined plate portion 23b of the horizontal plate portion 23 are parallel and face each other.

In the present embodiment, each extended portion 32 is not in contact with the horizontal plate portion 23 . As a result, it is possible to suppress the occurrence of abnormal noise due to contact between the extension portion 32 and the horizontal plate portion 23 . Note that at least a portion of the extension portion 32 may be in contact with the horizontal plate portion 23 . For example, the first surface portion 32b1 of the inner extension portion 32b of the extension portion 32 and the parallel plate portion 23a of the horizontal plate portion 23 may be in contact with each other, or the second surface portion 32b1 of the inner extension portion 32b of the extension portion 32 may be in contact with each other. The surface portion 32b2 and the inclined plate portion 23b of the horizontal plate portion 23 may be in contact with each other.

The tip of each extended portion 32 is located closer to the center of the frame 20 than the projecting portion 20b of the frame 20. As shown in FIG. Specifically, the tip of the third surface portion 32b3 of the inner extension portion 32b of each extension portion 32 is positioned closer to the center of the frame 20 than the inner end portion of the lateral plate portion 23 of the frame 20. As shown in FIG.

A third surface portion 32 b 3 of the inner extension portion 32 b is formed such that the tip thereof extends toward the substrate 11 . In the present embodiment, the third surface portion 32b3 is formed so as to incline toward the substrate 11 toward the substrate 11 side. Note that the third surface portion 32b3 may extend parallel to the substrate 11 without being inclined, like the first surface portion 32b1.

The tip of the extended portion 32 overlaps the substrate 11 in the Z-axis direction. Specifically, the tip of the third surface portion 32b3 of the inner extension portion 32b overlaps the substrate 11. As shown in FIG. In the present embodiment, the tip of the third surface portion 32b3 is in contact with the substrate 11. As shown in FIG. As a result, even if an insect enters through the gap between the mounting portion 33 of the cover member 30 and the side plate portion 24 of the frame 20, it will not enter the space between the main portion 31 of the cover member 30 and the main plate portion 21 of the frame 20. Insects can be prevented from entering. Further, by pressing the board 11 with the extended portion 32, the frame 20 to which the board 11 is attached can be prevented from slipping toward the floor. Further, when the substrate 11 is adhesively fixed to the frame 20 with an adhesive or the like, even if the adhesive is peeled off, the substrate 11 separated from the frame 20 is supported by the extended portion 32 . That is, it is possible to prevent the substrate 11 from falling. Note that the tip of the third surface portion 32b3 does not have to be in contact with the substrate 11. As shown in FIG.

Each extension part 32 is preferably arranged outside the directivity (light distribution angle) of the LED 12 . For example, since the light distribution angle (1/2 beam angle) of the LED 12 is 120°, the opening angle (tilt angle of the third surface portions 32b3) of the pair of third surface portions 32b3 in the pair of extension portions 32 is 120°. ° or more. As a result, loss of light emitted from the LED 12 in the cover member 30 can be reduced, and most of the light emitted from the LED 12 can be transmitted through the cover member 30 and emitted to the outside. That is, the light extraction efficiency of the cover member 30 can be improved. The opening angle of the pair of third surface portions 32b3 is preferably 160° or more. In addition, the upper limit of the opening angle of the pair of third surface portions 32b3 is 170° as an example.

A space exists between each extension 32 and the frame 20 . Specifically, a space exists between each extended portion 32 and the main plate portion 21 of the frame 20 . In this space, screw feet or screw heads can be accommodated when various parts are screwed, and crimped parts can be accommodated when the frame 20 and other metal parts are crimped. For example, as shown in FIG. 3, this space accommodates screw legs of screws 50 for fixing the power supply device 4 and the frame 20 .

In addition, in the space between each extending portion 32 and the frame 20, functional components may be accommodated in the same manner as the space area S1 formed by the protruding portion 20b of the frame 20, or electric wires in the device may be accommodated. It may be stored.

The pair of attachment portions 33 are portions attached to the frame 20 and are formed as a pair of leg portions of the cover member 30 . Specifically, the pair of attachment portions 33 are attached to the pair of side plate portions 24 of the frame 20 .

Each of the pair of mounting portions 33 extends from a portion of the extension portion 32 toward the ceiling. The length of the pair of mounting portions 33 in the Z-axis direction is the same. As shown in FIG. 7, each of the pair of mounting portions 33 is elongated along the Y-axis direction. The length in the Y-axis direction of the pair of mounting portions 33 is also the same.

As shown in FIGS. 6 and 7, recesses 33a are formed inside the width direction (X-axis direction) of the tip end portions of the pair of mounting portions 33, respectively. The pair of mounting portions 33 of the cover member 30 and the pair of side plate portions 24 of the frame 20 are engaged with each other by fitting the bent portions 24a provided at the tip portions of the side plate portions 24 of the frame 20 into the concave portions 33a. fixed. As a result, the pair of mounting portions 33 of the cover member 30 are fixed to the frame 20 so as to hold the frame 20 in place.

The side plate portion 24 of the frame 20 and the mounting portion 33 of the cover member 30 may be fixed with screws. This screw is screwed into the portion where the side plate portion 24 and the mounting portion 33 overlap from the outside of the mounting portion 33 . Also, the frame 20 and the cover member 30 may be fixed by a caulking structure. For example, the frame 20 and the cover member 30 may be fixed by crimping a portion of the side plate portion 24 of the frame 20 to fix it to the mounting portion 33 of the cover member 30 .

Further, in the present embodiment, the concave portion 33a is formed so that the tip thereof is folded back, and the cross-sectional shape of the concave portion 33a is substantially U-shaped or substantially U-shaped. In addition, the shape of the recessed part 33a is not restricted to this. For example, the recess 33a may have an L-shaped cross-section and be formed so that the tip is not folded back, may have a V-shaped cross-section, or may have an arc-shaped cross-section. may However, the recessed portion 33a may have a shape into which the bent portion 24a is fitted.

The cover member 30 is made of a translucent resin material such as acrylic or polycarbonate or a translucent material such as a glass material. In this embodiment, the cover member 30 is made of translucent resin material. In this case, the cover member 30 can be a milky white cover member in which the light diffusion material is dispersed. Such a cover member 30 can be produced by molding a translucent resin material mixed with a light diffusing material into a predetermined shape. Light reflective fine particles such as silica particles can be used as the light diffusing material.

The cover member 30 is formed by forming a milky-white light diffusion film containing a light diffusion material on the surface (inner surface or outer surface) of the transparent cover instead of dispersing the light diffusion material inside. good too. Further, the cover member 30 may be configured to have light diffusibility by performing diffusion processing instead of using a light diffusion material. For example, the cover member 30 may be subjected to surface treatment such as embossing to form fine irregularities on the surface of the transparent cover, or may be printed with a dot pattern on the surface of the transparent cover so as to have light diffusion properties. may be configured. Even when the cover member 30 is processed for diffusion, it may further contain a light diffusing material in order to enhance the light diffusibility.

In this embodiment, the main portion 31, the extension portion 32, and the mounting portion 33 that constitute the cover member 30 are integrally formed. Therefore, the main portion 31, the extension portion 32 and the attachment portion 33 are made of the same material. Further, the main portion 31, the extension portion 32, and the mounting portion 33 all have the same thickness, but the thickness is not limited to this.

A long cylinder is configured by fixing the cover member 30 and the frame 20 . An end cap 40 is attached to each of the longitudinal ends of the tubular body composed of the cover member 30 and the frame 20 .

In this embodiment, the end cap 40 is provided so as to close the open end of the tubular body composed of the frame 20 and the cover member 30 . That is, the end cap 40 is attached to the tubular body so as to cover the open end of the tubular body composed of the frame 20 and the cover member 30, and closes the open end of the tubular body. As a result, it is possible to prevent dust, insects, and the like from entering the cylindrical body composed of the frame 20 and the cover member 30 . Even if the end cap 40 does not completely close the open end of the cylindrical body composed of the frame 20 and the cover member 30 and there is a slight gap between the end cap 40 and the frame 20, good.

The end caps 40 are provided at both ends of the cover member 30 in the longitudinal direction. That is, the end cap 40 is a cover end provided at the end of the cover member 30 . The end caps 40 are directly or indirectly connected to the longitudinal ends of the cover member 30 . The end cap 40 and the cover member 30 may be fixed with an adhesive, or may be fixed with ultrasonic welding. Alternatively, the end cap 40 and the cover member 30 may be joined together by providing a locking structure such as a claw portion or a concave portion on the end cap 40 and the cover member 30 .

The end cap 40 is made of a resin material. Also, the end cap 40 may or may not have translucency. The translucent end cap 40 is made of, for example, a translucent resin material such as acrylic or polycarbonate, or a translucent material such as a glass material. Also, the end cap 40 may have translucency and diffusion. In this case, the end cap 40 may be made of the same material as the cover member 30 or may be made of a different material from the cover member 30 .

As shown in FIGS. 3 and 4, a space area S2 is formed on the ceiling side of the frame 20. As shown in FIGS. In other words, there is a spatial region S2 between the appliance main body 2 and the frame 20. As shown in FIG. The spatial region S2 is also part or all of the recessed portion 2a of the instrument body 2. As shown in FIG.

The power supply device 4 is arranged in this space area S2. That is, the power supply device 4 is arranged on the ceiling side of the frame 20 . In the present embodiment, the center position of the power supply device 4 is displaced from the center position of the LED lighting device 3 in the short direction. 20). Specifically, the power supply device 4 is biased toward the hook 5 side (left side in FIG. 4). Further, the side plate portion 24 of the frame 20 is shortened, and the circuit board 4a of the power supply device 4 is located closer to the ceiling than the tip of the side plate portion 24 of the frame 20 in the circuit case 4c.

Since the portion of the circuit case 4c of the power supply device 4 on the side of the frame 20 is open, the second direction side of the horizontal plate portion 23 is open toward the circuit case 4c of the power supply device 4. FIG. Therefore, the space area S1 formed by the projecting portion 20b of the frame 20 and the space area inside the circuit case 4c communicate with each other. Thereby, the space area S1 formed by the projecting portion 20b of the frame 20 can be effectively utilized.

A wire used for the LED lighting device 3 may be arranged in the spatial region S2 between the fixture body 2 and the frame 20 . The wires used in the LED lighting device 3 include construction wires (construction wiring) that are wired when the LED lighting device 1 is installed on the ceiling or the like, and wiring processing at the factory when the LED lighting device 3 is manufactured. There is a wire inside the appliance (wiring inside the appliance).

Construction wires include power lines such as VVF cables and signal lines such as dimming signal lines. Construction wires such as power lines and signal lines are pulled out from the ceiling, for example, and are connected to predetermined locations of the LED lighting fixture 1 when the LED lighting fixture 1 is installed. For example, a power line such as a VVF cable is connected to the power terminal block 8, and a dimming signal line is connected to the dimming terminal block.

As an example, FIG. 4 shows an example in which a VVF cable 61 and a signal line 62 are arranged in the spatial region S2 as construction wires. In this case, in the present embodiment, since the power supply device 4 is arranged in the spatial region S2, one of the pair of horizontal plate portions 23 of the frame 20 (right side horizontal plate portion 23 in FIG. 4) The ceiling side of the is open. As a result, as shown in FIG. 4, in the region where the power supply device 4 exists in the spatial region S2, the region on one side of the LED lighting device 3 in the short direction is larger than the region on the other side. That is, one of both sides of the power supply device 4 in the space area S2 is a wide area, and the other side of both sides of the power supply device 4 in the space area S2 is a narrow area. For this reason, it is preferable to arrange the construction wiring in the wider area of the two areas on both sides of the power supply device 4 . In particular, in the present embodiment, the length (height) of the side plate portion 24 of the frame 20 is short, so the vertical space of the space region S2 around the side plate portion 24 can be further increased. Therefore, the widened spatial region S2 can be effectively used to arrange the construction wiring. For example, the wiring for construction work can be arranged closer to the ceiling-side end portion of the space area S2 on the appliance body 2 side. In this way, since the wiring for construction work can be arranged by effectively utilizing the wide space area S2, the wiring for construction work interferes and the LED lighting device 3 floats, causing the fixture main body 2 and the LED lighting device 3 to float. It is possible to suppress the formation of gaps between them.

It should be noted that the construction wiring may be arranged separately in a wide area and a narrow area in the space area S2. In this case, the VVF cable 61, which is a relatively thick line, is arranged in the wide area of the two areas on both sides of the power supply 4, and the signal line 62, which is a relatively thin line, is arranged on both sides of the power supply 4. may be placed in the narrower of the two regions of .

In addition, the intra-appliance electric wire arranged in the space area S2 includes the above-mentioned intra-appliance electric wire housed in the spatial area S1.

The LED lighting device 3 configured in this manner is housed in the concave portion 2 a of the fixture body 2 and attached to the fixture body 2 . Specifically, the LED lighting device 3 is attached to the fixture main body 2 using the hook fitting 5 and the elastic holding member 6 shown in FIGS. The hook fitting 5 and the elastic holding member 6 are fixed to the frame 20 .

As shown in FIG. 3 , the hook 5 is arranged on the ceiling side of the frame 20 . The hook 5 is a plate member made of sheet metal. Hooks 5 are fixed to the ends of frame 20 . As an example, the hook fitting 5 is fixed to the frame 20 by a fixing member such as a screw, and extends outward from the frame 20 . The hook fitting 5 is hooked on the instrument body 2. - 特許庁In this embodiment, a slit 2c (see FIG. 2) is provided in the inner wall surface of the concave portion 2a of the instrument main body 2, and the hook 5 is hooked on this slit 2c.

The elastic holding member 6 is arranged on the ceiling side of the frame 20 . The elastic holding member 6 is, for example, a spring such as a kick spring. The elastic holding member 6 is fixed to the end of the frame 20 in the width direction on the ceiling side surface of the frame 20 . The elastic holding member 6 is fixed on the opposite side of the frame 20 in the width direction of the hook 5 . The elastic holding member 6 is fixed to the frame 20 with a fixing member such as a screw. Specifically, the elastic holding member 6 is fixed to a holding metal fitting 6c (see FIG. 6) that is fixed to the frame 20 with a mounting screw. The elastic holding member 6 is detachably attached to the instrument body 2 . In this embodiment, the elastic holding member 6 is detachably locked to a receiving metal fitting 7 fixed to the instrument main body 2 .

Note that, as shown in FIG. 2 , two hook fittings 5 and two elastic holding members 6 are provided at both ends of the frame 20 in the longitudinal direction, but the present invention is not limited to this. Also, the hooking metal fittings 5 and the elastic holding members 6 are provided at positions facing each other in the lateral direction of the frame 20, but the present invention is not limited to this.

Here, a method for attaching the LED lighting device 3 to the fixture main body 2 will be described with reference to FIG. 9 . FIG. 9 is a diagram for explaining how to attach the LED lighting device 3 to the fixture body 2 in the LED lighting fixture 1 according to the embodiment.

When attaching the LED lighting device 3 to the fixture body 2 installed on the ceiling 100, first, as shown in FIG. The LED lighting device 3 is hung in a cantilever state by being hooked, and one end of the elastic holding member 6 which is a kick spring is engaged with the receiving metal fitting 7 fixed to the fixture main body 2 .

Next, as shown in FIG. 9B, the LED lighting device 3 is rotated around the hooking metal fitting 5 as a fulcrum while the hooking metal fitting 5 is pushed deep into the slit 2c. Push up into 2a.

At this time, in the present embodiment, the power supply device 4 is arranged on one side of the frame 20 in the width direction. Specifically, the power supply device 4 is arranged close to the rotating shaft side. In this way, by arranging the heavy power supply device 4 close to the rotation shaft side, the LED lighting device 3 can be rotated with a small force.

Then, by rotating the LED lighting device 3 and pushing the LED lighting device 3 into the recess 2a of the fixture body 2, the LED lighting device 3 is fitted into the recess 2a of the fixture body 2 as shown in FIG. can enter. At this time, the opening edge 2a1 of the concave portion 2a and the outer end portion 31a of the cover member 30 are in contact with each other. Thereby, the LED lighting device 3 can be attached to the fixture main body 2 .

When removing the LED lighting device 3 from the fixture main body 2, the LED lighting device 3 can be removed from the fixture main body 2 by performing an operation opposite to that described above. For example, the LED lighting device 3 can be removed from the fixture main body 2 by rotating the LED lighting device 3 while pulling it down.

Here, the relationship between the shape of the projecting portion 20b of the frame 20 and the strength of the frame 20 has been studied, and the results of the study will be described with reference to FIG. FIG. 10 is a diagram showing the relationship between the shape of the projecting portion 20b of the frame 20 and the strength of the frame 20. As shown in FIG. As shown in FIG. 10, the strength (rigidity) of the frame 20 was evaluated by the geometrical moment of inertia. Also, the values of the moment of inertia of area shown in FIG. 10 indicate the calculation results for the half cross section of each frame 20, and the values for the full cross section are doubled. Regarding the dimensions of each frame 20, the width of the half section was 30 mm, the depth of the concave portion 20a was 3 mm, and the plate thickness was 0.5 mm. In each frame 20, the ratio of the depth a of the concave portion 20a, the width w1 of the concave portion 20a, and the overall width w3 of the frame 20 was uniform at a:w1:w3=1:10:20.

In FIG. 10, pattern 1 has no side plate portion 24 (leg), pattern 2 has the side plate portion 24 extending to the bottom of the recess 20a, and pattern 3 has the depth of the recess 2a. and the length of the side plate portion 24 is 1:1. Pattern 4 has a ratio of the depth of the concave portion 2a to the length of the side plate portion 24 of 1:1.5. The ratio of the depth of the concave portion 2a to the length of the side plate portion 24 is 1:2.

Structure 1 is a mode in which the horizontal plate portion 23 of the frame 20 is composed only of the inclined plate portion 23b in the patterns 1 to 5. FIG. Structure 2 is a mode in which, in patterns 1 to 5, the horizontal plate portion 23 of the frame 20 is composed only of the parallel plate portion 23a. Structure 3 is a mode in which the horizontal plate portion 23 of the frame 20 is composed of a parallel plate portion 23a and an inclined plate portion 23b in patterns 1 to 5. FIG. The shape of the frame 20 shown in FIGS. 3 and 4 is the patterns 3 to 5 of the structure 3, but the frame of the present embodiment has the patterns 3 to 5 of the structure 1 and the patterns 4 to 4 of the structure 2. A frame of the form shown in 5 is also included.

As shown in FIG. 10, as can be seen by comparing Patterns 1 and 2 with Patterns 3 to 5, the tip of the side plate portion 24 of the frame 20 exceeds the concave portion 20a, so that the value of the moment of inertia of area is greatly increased. I know it will grow. In other words, the strength of the frame 20 is greatly improved by the tip of the side plate portion 24 of the frame 20 exceeding the concave portion 20a.

Further, as can be seen by comparing the structure 1 and the structure 2, the value of the moment of inertia of area is significantly larger when the horizontal plate portion 23 is made up of only the parallel plate portion 23a than only the inclined plate portion 23b. I understand. Furthermore, as can be seen by comparing Structures 2 and 3, the cross-sectional secondary moment is more reduced when the horizontal plate portion 23 is composed of the parallel plate portion 23a and the inclined plate portion 23b than when the horizontal plate portion 23 is composed of only the parallel plate portion 23a. It can be seen that the value increases.

Thus, by making the shape of the frame 20 of the present embodiment (that is, patterns 3 to 5 of structure 1, patterns 4 to 5 of structure 2, and patterns 3 to 5 of structure 3), the geometrical moment of inertia The value becomes 20 or more, and the strength of the frame 20 can be greatly improved.

As described above, the LED lighting device 3 and the LED lighting fixture 1 according to the present embodiment include the substrate 11 on which the LEDs 12 are arranged, the elongated plate-shaped frame 20 to which the substrate 11 is attached, and the LEDs 12 and a cover member 30 attached to the frame 20 so as to cover the . The frame 20 includes a recess 20a in which the substrate 11 is arranged, a pair of lateral plate portions 23 positioned on both sides of the recess 20a in the lateral direction of the frame 20 and extending along the longitudinal direction of the frame 20, It has a side plate portion 24 which is an extension portion extending from the pair of horizontal plate portions 23 toward the ceiling.

As described above, since the recess 20a is formed in the frame 20 in the present embodiment, the projecting portion 20b constituted by the horizontal plate portion 23 is formed on the side of the recess 20a. Thereby, the strength of the frame 20 can be increased. Moreover, in the present embodiment, the tip of the side plate portion 24 extending toward the ceiling from the horizontal plate portion 23 is extended so as to be located closer to the ceiling than the concave portion 20a. Thereby, the strength of the frame 20 can be further increased.

As a result, even if the length of the side plate portion 24 of the frame is shortened to make the frame 20 thinner, the required strength of the frame 20 can be easily ensured. In other words, the strength of the frame 20 reduced by shortening the length of the side plate portion 24 of the frame 20 can be compensated for by forming the protruding portion 20b that protrudes toward the floor. Therefore, even if the frame 20 is plate-shaped, the frame 20 can be thinned while ensuring the strength of the frame 20 . In other words, it is possible to achieve both securing of the strength of the frame 20 and thinning of the frame 20 .

Specifically, as shown in FIG. 4, when the depth of the concave portion 20a of the frame 20 is a and the length of the side plate portion 24 of the frame 20 is b, the relational expression of b≦2×a is satisfied. Even if the frame 20 is thinned by shortening the side plate portions 24 in this manner, the required strength of the frame 20 can be easily ensured. In this case, as shown in FIG. 4, when the depth of the recess 20a is a and the width (entire width) of the frame 20 is w3, it is preferable that the relational expression w3≦20×a is satisfied. In other words, the ratio of the depth of the recess 20a to the overall width of the frame 20 is preferably 1:20 or less. As a result, a flat and thin frame 20 with a large aspect ratio can be realized.

Moreover, by shortening the length of the side plate portion 24 of the frame 20, the weight and cost of the frame 20 can be reduced. Furthermore, by shortening the length of the side plate portion 24 of the frame 20, it is possible to improve workability when attaching and detaching the LED lighting device 3 to and from the fixture main body 2. FIG. Specifically, by shortening the length of the side plate portion 24 of the frame 20 and reducing the overall height of the frame 20, the LED lighting device 3 can be easily rotated, and the LED lighting device 3 can be placed in the concave portion 2a of the fixture body 2. It can be easily inserted, the finger can be easily inserted into the connector, making it easier to attach and detach the construction wire to and from the connector, and when the LED lighting device 3 is attached to the fixture body 2, it is easier to look inside, so that the wire can be easily caught. Also, it becomes easier to pick up the elastic holding member 6 (kick spring) when installing the LED lighting device 3 to the fixture body 2 .

In addition, the LED lighting device 3 according to the present embodiment is configured so that the inner extending portion 32b of the extending portion 32 of the cover member 30 and the lateral plate portion 23 of the frame 20 can come into contact with each other. Specifically, the parallel plate portion 23a and the inclined plate portion 23b of the lateral plate portion 23 of the frame 20, and the first surface portion 32b1 and the second surface portion 32b2 of the extension portion 32 of the cover member 30 are planes, not points. It is configured so that it can be contacted.

With this configuration, the frame 20 and the cover member 30 are firmly fixed, so that the LED lighting device 3 having high strength can be obtained even if the frame 20 is thinned by shortening the length of the side plate portion 24 of the frame 20.例文帳に追加be able to.

As described above, in the LED lighting device 3 according to the present embodiment, the strength of the frame 20 is ensured. It is possible to suppress deformation of the lighting device 3 and bending of the LED lighting device 3 by being pushed by the weight of the LED lighting device 3, an electric wire, or the like after installation. As a result, the formation of a gap between the LED lighting device 3 and the opening edge 2a1 of the concave portion 2a of the fixture body 2 can be suppressed. As a result, it is possible to prevent the wiring for construction work or the wire in the fixture from protruding from between the LED lighting device 3 and the opening edge 2a1 of the recessed portion 2a of the fixture body 2. It is possible to suppress the occurrence of wire jamming due to the wire for construction work or the wire inside the appliance being caught. Moreover, it is possible to prevent the design of the LED lighting fixture 3 from deteriorating due to a gap between the LED lighting device 3 and the fixture main body 2 .

In addition, as in the LED lighting fixture 1 and the LED lighting device 3 according to the present embodiment, the length of the side plate portion 24 of the frame 20 is shortened to make the frame 20 thinner, so that the frame 20 and the fixture main body 2 are The space area S2 surrounded by the concave portion 2a can be widened.

Thereby, the space area S2 can be effectively utilized. Specifically, it is possible to easily arrange functional parts, electric wires such as construction electric wires and electric wires in appliances, metal fittings, or various parts such as the power supply device 4 in the space area S2. Further, by widening the space area S2, it is possible to easily perform the mounting work when mounting these parts in the space area S2. In this space area S2, for example, as shown in FIG. 4, a VVF cable 61 and a signal line 62 are arranged as electric wires for construction work. In this case, as shown in FIG. 4, the length between the tip of the mounting portion 33 of the cover member 30 and the bottom surface of the recess 2a of the instrument body 2 is H1, and the depth of the recess 2a of the instrument body 2 is H2. Then, it is preferable that H1/H2≧1/2. Thereby, a construction electric wire can be easily arranged in the space area S2. In particular, by setting H1/H2≧1/2, even if the VVF cable 61 bends, it can be accommodated in the spatial region S2 without protruding from the spatial region S2.

In addition, in FIG. 4, the VVF cable 61 arranged in the spatial region S2 is arranged near the bottom surface of the concave portion 2a of the instrument main body 2, but it is not limited to this. For example, as shown in FIG. 11, the VVF cable 61 arranged in the spatial region S2 may be arranged so as to be in contact with the frame 20. FIG. In addition, since the space area S2 in this embodiment is a wide space, two VVF cables 61 can be arranged in the space area S2 as shown in FIG. Also, instead of arranging the two stacked VVF cables 61 horizontally, it is also possible to arrange the two stacked VVF cables 61 vertically as shown in FIG. 12 and 13, one of the two VVF cables 61 is a feed wire for supplying AC power to the adjacent LED lighting fixture 1 when a plurality of LED lighting fixtures 1 are installed. can be

In addition, in the LED lighting device 3 according to the present embodiment, as shown in FIGS. 3 and 4, the projection 20b formed on the frame 20 forms a spatial region S1 on the ceiling side of the projection 20b. . In other words, the formation of the projecting portion 20b on the frame 20 not only increases the strength of the frame 20, but also forms the spatial region S1 on the ceiling side of the projecting portion 20b.

As described above, the spatial area S1 can accommodate functional parts or parts such as electric wires in the appliance, and the spatial area S1 can be effectively utilized. It should be noted that the method of utilizing the space area S1 is not limited to storing functional parts or parts such as electric wires in equipment, but the space area S1 can be used for aligning the center of metal fittings, positioning metal fittings, guiding metal fittings, or It can also be used for ground conduction or the like. The ground connection is to connect the circuit case 4c and/or the frame 20 of the power supply device 4 to the ground via metal fittings. Metal fittings include mounting metal fittings, power supplies, dimming terminal metal fittings, springs, and the like.

For example, as shown in FIG. 14, by arranging a portion of the metal fitting 70 in the spatial region S1, centering, positioning, guiding, or grounding of the metal fitting 70 can be realized. In this case, the metal fitting 70 can be centered or the like by engaging the bent portion of the metal fitting 70 with the vertical plate portion 22 of the frame 20 .

Further, as shown in FIG. 15, a projecting portion 71 (half-moon dowel) is formed on a part of the metal fitting 70A made of sheet metal, and this projecting portion 71 is inserted into the through hole 20c provided in the upright portion 22 of the frame 20A. By doing so, the metal fitting 70A may be centered or the like. With this structure, the protruding portion 71 is fitted into the through hole 20c and becomes difficult to come off, so that the metal fitting 70A can be fixed to the frame 20 easily and firmly.

Further, as shown in FIG. 16, a cut-and-raised piece 72 is formed by cutting and raising a part of the metal fitting 70B made of sheet metal, and this cut-and-raised piece 72 is used as a connecting portion between the main plate portion 21 and the standing plate portion 22 of the frame 20. The metal fitting 70B may be centered or the like by being engaged with the (corner). In this case, the cut-and-raised piece 72 is arranged in the spatial region S1. With this structure, the cut-and-raised piece 72 functions as a guide, so that the fitting 70B can be easily aligned.

Further, as shown in FIG. 17, a projecting portion 73 (half-moon dowel) is formed on a portion of the metal fitting 70C made of sheet metal, and the projecting portion 73 is engaged with the standing plate portion 22 of the frame 20, whereby the metal fitting 70C can be may be centered. In this case, the protruding portion 73 is arranged in the spatial region S1. With this structure, the projecting portion 73 functions as a guide, so that the fitting 70C can be easily positioned.

Further, as shown in FIG. 18, a part of a metal fitting 70D that holds a kick spring, which is the elastic holding member 6, may be housed in the space area S1. In FIG. 18, (a) is a cross-sectional view and (b) is a side view. The metal fitting 70D may be the above-described holding metal fitting 6c (see FIG. 6).

Although not shown, part or all of the coil portion of the kick spring, which is the elastic holding member 6, may be housed in the space area S1 without using the metal fitting 70D. Thereby, it is possible to suppress the kick spring from collapsing in the width direction. At this time, by extending the side plate portion 24 of the frame 20 to the side of the coil portion of the kick spring, it is possible to further prevent the kick spring from collapsing. In addition, the space area S1 may accommodate the root portion and the tip portion, which are both end portions of the kick spring that is the elastic holding member 6 . As a result, both ends (edges) of the kick spring can be prevented from being exposed, and protrusion of both ends of the kick spring can be suppressed.

Further, as shown in FIGS. 3 and 4, in the LED lighting device 3 according to the present embodiment, the circuit board 4a of the power supply device 4 is located closer to the ceiling than the tip of the side plate portion 24 of the frame 20. . Accordingly, the plurality of electronic components 4b mounted on the circuit board 4a are not sandwiched between the pair of side plate portions 24 of the frame 20 and are exposed from the frame 20 when viewed from the side.

If the power supply device 4 were completely covered with a frame having a U-shaped cross section, the side surface of the circuit case 4c of the power supply device 4 would not necessarily contact the side plate of the frame. The heat generated from the heat-generating parts inside is trapped in the inner area of the frame (the area surrounded by the U-shape). On the other hand, since the circuit board 4a is positioned closer to the ceiling than the tip of the side plate portion 24 of the frame 20, the heat-generating components mounted on the circuit board 4a are not covered by the side plate portion 24 of the frame 20. Since it is exposed, the heat generated from the heat-generating components of the power supply device 4 is less likely to stay in the area (space area S2) on the ceiling side of the frame 20 . Moreover, since the circuit board 4a is located closer to the ceiling than the tip of the side plate portion 24 of the frame 20, the power supply device 4 is less likely to receive radiant heat from the LEDs 12. FIG. In this case, as shown in FIG. 4, the length between the tip of the mounting portion 33 of the cover member 30 and the bottom surface of the recess 2a of the instrument body 2 is H1, and the depth of the recess 2a of the instrument body 2 is H2. Then, it is preferable that H1/H2≧1/2. As a result, the heat generated from the heat-generating components of the power supply device 4 is less likely to accumulate.

Further, as shown in FIG. 4, in the LED lighting device 3 of the present embodiment, the side plate of the circuit case 4c of the power supply device 4 is provided with a through hole 4d. As a result, the heat generated by the heat-generating components of the power supply device 4 can be effectively dissipated through the through holes 4d by natural convection. Therefore, it is possible to further suppress heat from remaining in the spatial region S2.

Further, as shown in FIG. 4, in the LED lighting fixture 1 according to the present embodiment, a through hole 2d is provided in the inner wall surface of the concave portion 2a of the fixture body 2. As shown in FIG. As a result, the heat generated by the heat-generating components of the power supply device 4 can be dissipated more effectively not only through the through holes 4d but also through the through holes 2d. Therefore, it is possible to further prevent heat from remaining in the spatial region S2.

(Modification)
As described above, the LED lighting fixture and the LED lighting device according to the present invention have been described based on the embodiments and modifications, but the present invention is not limited to these embodiments and modifications.

For example, in the above-described embodiment, the frame used in the LED lighting device 3 has various shapes, but frames having shapes described below may be used. It should be noted that some of the frames described below also have the shape already described above. For the frames described below, although the shapes are different, the same reference numerals as those in the above embodiment are used for the sake of convenience. In addition, the features of the frames described below may be applied to each other, or may be applied to the above embodiments and modifications.

First, in the above-described embodiment, the horizontal plate portion 23 is composed of the parallel plate portion 23a and the inclined plate portion 23b, but the present invention is not limited to this. For example, like the frame 201 shown in FIG. 19, the horizontal plate portion 23 may be composed only of parallel plate portions, or like the frame 202 shown in FIG. You may be comprised only by the board part. In this case, as in the frame 202 shown in FIG. 20, the horizontal plate portion 23 may be composed only of inclined plate portions that incline outward, or as in the frame 203 shown in FIG. The horizontal plate portion 23 may be composed only of an inwardly inclined plate portion.

Further, in the above-described embodiment, the upright plate portion 22 of the frame 20 is set upright to the main plate portion 21, but the present invention is not limited to this. For example, like the frame 204 shown in FIG. 22 , the upright plate portion 22 may be an inclined plate portion provided so as to be inclined with respect to the main plate portion 21 . In this case, in the frame 204 shown in FIG. 22, the horizontal plate portion 23 is composed only of the inclined plate portion that is inclined outward. Also, in FIG. 22, the position of the connecting portion between the horizontal plate portion 23 and the side plate portion 24 is the same as the position of the main plate portion 21 (bottom portion of the recess 20a), but the present invention is not limited to this. Specifically, like the frame 205 shown in FIG. 23, the connection portion between the horizontal plate portion 23 and the side plate portion 24 is located closer to the floor than the main plate portion 21 (bottom portion of the recess 20a). good too. Also, although not shown, the connecting portion between the horizontal plate portion 23 and the side plate portion 24 may be located closer to the ceiling than the main plate portion 21 (the bottom portion of the recess 20a).

Moreover, like the frame 206 shown in FIG. 24, the horizontal plate portion 23 may be configured by a curved plate portion. Further, like the frame 207 shown in FIG. 25, the upright plate portion 22 may be composed of only the inclined plate portion and the horizontal plate portion 23 may be composed of only the parallel plate portion, or the frame shown in FIG. As shown in 208, the upright plate portion 22 may be composed only of the inclined plate portion, and the horizontal plate portion 23 may be composed of the parallel plate portion and the inclined plate portion.

Moreover, like the frame 209 shown in FIG. 27, the horizontal plate portion 23 may be formed in a stepped shape. That is, the horizontal plate portion 23 may be provided with a step. In this case, in the frame 209 shown in FIG. Although it is configured by two parallel plate portions, it is not limited to this. For example, like the frame 210 shown in FIG. 28, the horizontal plate portion 23 having a step may have a parallel plate portion and an inclined plate portion located inside the parallel plate portion. The horizontal plate portion 23 having a step may have a parallel plate portion and an inclined plate portion positioned outside the parallel plate portion and inclined inwardly, as in the frame 211 shown in FIG. As in the frame 212 shown in 30, the stepped horizontal plate portion 23 may have an outwardly inclined plate portion and an inwardly inclined plate portion. Further, as in the frame 213 shown in FIG. 31, the horizontal plate portion 23 may have a stepped shape having an inclined plate portion and a parallel plate portion, and the upright plate portion 22 may be an inclined plate portion. As in the frame 214 shown in FIG. 32, the horizontal plate portion 23 may be stepped with two parallel plate portions, and the upright plate portion 22 may be an inclined plate portion.

Note that, like a frame 215 shown in FIG. 33 , a reinforcing rib 21b may be formed at the boundary between the main plate portion 21 and the standing plate portion 22 . As a result, even if the frame has a short side plate portion 24, the strength of the frame can be ensured. The reinforcing ribs 21b can be formed by press working, for example.

Moreover, in the above-described embodiment, the side plate portions 24 of the frame 20 extend from each of the pair of horizontal plate portions 23, but the present invention is not limited to this. For example, the side plate portion 24 of the frame 20 may extend from only one of the pair of horizontal plate portions 23 . In other words, the side plate portions 24 need only extend from at least one of the pair of horizontal plate portions 23 .

Further, in the above-described embodiment, the outer extending portion 32 a of the cover member 30 may be part of the main portion 31 . In this case, in the cover member 30, the extending portion 32 is, for example, only the inner extending portion 32b, and extends inwardly of the cover member 30 from the outer extending portion 32a which is a part of the main portion 31. Become.

Moreover, although the cover member 30 is made of one type of resin material in the above embodiment, the present invention is not limited to this. Specifically, the cover member 30 may be made of two or more kinds of materials. In this case, at least a portion of the extended portion 32 of the cover member and the main portion 31 can be made of different materials. For example, the main portion 31, the attachment portion 33, and the extension portion 32 can be made of different resin materials. Specifically, the main portion 31, the mounting portion 33, the outer extending portion 32a of the extending portion 32, and the second surface portion 32b2 of the inner extending portion 32b of the extending portion 32 are made of a translucent resin material. The first surface portion 32b1 and the third surface portion 32b3 of the inner extension portion 32b of the portion 32 can be made of a white or opalescent resin material. Such a cover member 30 can be formed by two-color molding. By forming at least part of the inner extension portion 32b of the extension portion 32 with a white or milky white resin material in this manner, the inner extension portion 32b can have a reflective function. As a result, of the light emitted from the LED 12 , the light reaching the inner extension portion 32 b of the extension portion 32 can be reflected by the inner extension portion 32 b and made incident on the main portion 31 . As a result, the illuminance directly below the LED lighting fixture 1 can be improved, so when a plurality of LED lighting fixtures 1 are installed, the number of installed LED lighting fixtures 1 can be reduced.

In addition, in the above-described embodiment, when the LED lighting device 3 is attached to the fixture body 2, the LED lighting device 3 is attached to the fixture body 2 by rotating the LED lighting device 3, but the present invention is not limited to this. That is, the LED lighting device 3 may be attached to the fixture main body 2 without rotating the LED lighting device 3 . Specifically, a plate spring or the like provided in the LED lighting device 3 is hooked on the fixture body 2 installed on the ceiling, and the LED lighting device 3 is moved in the vertical direction so as to move parallel to the fixture body 2. Thus, the LED lighting device 3 may be attached to the fixture body 2 . In this case, the LED lighting device 3 can be attached to the fixture main body 2 by pushing the LED lighting device 3 into the concave portion 2a of the fixture main body 2 in the vertical direction and fitting it.

In the above embodiment, an SMD type LED element in which an LED chip is mounted in a package is used as the LED 12, and the light emitting module composed of the substrate 11 and the LED 12 is an SMD type LED module. Not exclusively. For example, the light emitting module composed of the substrate 11 and the LED 12 may be a COB (Chip On Board) type LED module. In this case, LED chips (bare chips) themselves are used as the LEDs 12, a plurality of LEDs 12 (LED chips) are arranged in a straight line on the substrate 11, and the plurality of LEDs 12 are collectively or They may be individually sealed.

Moreover, although the cover member 30 having diffusibility and translucency is used in the above embodiment, the present invention is not limited to this. For example, instead of the cover member 30, a translucent cover having only translucency among diffusion and translucency may be used. In this case, a transparent cover having a high transmittance so that the other side can be seen through may be used as the translucent cover.

In addition, a form obtained by applying various modifications that a person skilled in the art can think of to the above embodiment, and a form realized by arbitrarily combining the constituent elements and functions in the embodiment within the scope of the present invention. are also included in this disclosure. The present invention also includes any combination of two or more claims within the scope of claims as of the filing of the present application within a technically consistent range. For example, when a dependent form claim stated in the scope of claims as of the filing of the present application is made into a multiple claim or a multiple multiple claim so as to refer to all higher-level claims within a technically consistent range, the multiple All combinations of claims contained in a claim or multiple claims are also included in the present invention.

REFERENCE SIGNS LIST 1 LED lighting fixture 2 fixture main body 2a recess 3 LED lighting device 4 power supply device 4a circuit board 4b electronic component 4c circuit case 11 substrate 12 LED
20, 20A, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215 Frame 20a Concave portion 22 Vertical plate portion 23 Horizontal plate portion (plate portion)
24 Side plate part (extending part)
30 cover member

Claims (9)

a substrate on which LEDs are arranged;
an elongated plate-shaped frame to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
When the direction of the light emitting side of the LED is defined as a first direction with respect to the frame, and the direction opposite to the first direction is defined as a second direction,
The frame includes a main plate portion on which the substrate is arranged, a pair of standing plate portions erected on the main plate portion, and a pair of standing plate portions positioned on both sides of the main plate portion in the short side direction of the frame and extending in the longitudinal direction of the frame. and a pair of extensions extending from the pair of lateral plate portions in the second direction,
One end of one of the pair of standing plate portions is connected to one end of the main plate portion,
The other end of one of the pair of standing plate portions is connected to one end of one of the pair of horizontal plate portions,
one end of the other standing plate of the pair of standing plates is connected to the other end of the main plate;
the other end of the other standing plate portion of the pair of standing plate portions is connected to one end of the other lateral plate portion of the pair of lateral plate portions;
one of the pair of extensions is connected to the other end of one of the pair of horizontal plates,
the other extending portion of the pair of extending portions is connected to the other end of the other lateral plate portion of the pair of lateral plate portions;
A concave portion is formed by the main plate portion and the pair of standing plate portions,
The main plate portion is the bottom portion of the recess,
an end portion of the LED on the first direction side is located on the second direction side of the opening surface of the recess,
tips of the pair of extensions are located on the second direction side of the recess,
Each of the pair of horizontal plate portions has an inclined plate portion that is inclined with respect to the main plate portion,
LED lighting device. Each of the pair of horizontal plate portions has a parallel plate portion parallel to the main plate portion,
The LED lighting device according to claim 1. Assuming that the width of the recess is w1 and the width of one of the pair of lateral plate portions is w2, the relational expression w1>2×w2 is satisfied.
The LED lighting device according to claim 1 or 2. Assuming that the depth of the recess is a and the width of the recess is w1, the relational expression w1≧10×a is satisfied.
The LED lighting device according to claim 1 or 2. If the depth of the recess is a and the width of the frame is w3, the relational expression w3≦20×a is satisfied.
The LED lighting device according to claim 1 or 2. a power supply for powering the LED;
The power supply device is arranged on the second direction side of the frame,
The LED lighting device according to claim 1 or 2. The power supply device has a circuit board on which circuit components are mounted and a case for housing the circuit board,
The power supply device is arranged biased in the lateral direction of the frame,
The LED lighting device according to claim 6. a power supply for powering the LED;
The power supply device has a circuit board on which circuit components are mounted,
The LED lighting device according to claim 1 or 2, wherein the circuit board is positioned closer to the second direction than the tip of the extending portion. The LED lighting device according to claim 1 or 2;
a fixture body having a recess in which the LED lighting device is housed,
LED lighting equipment.

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