LED lighting devices and LED lighting fixtures

Abstract

The present invention provides an LED lighting device that widens the wiring space on the rear side of the frame and suppresses wire entanglement when installing LED lighting fixtures. [Solution] The LED lighting device 3 comprises a substrate 10 on which LEDs 20 are arranged, a long frame 40 to which the substrate 10 is attached, and a long cover member 30 attached to the frame 40 so as to cover the LEDs 20. The frame 40 has a portion to which the substrate is attached and which is formed as a whole in a flat shape, and the frame 40 has a folded portion 43 formed by folding the tip of the short side of the portion in the thickness direction.

Description

Technical Field

[0001] The present invention relates to an LED lighting device and an LED lighting fixture including the LED lighting device.

Background Art

[0002] LED (Light Emitting Diode) lighting fixtures are known. For example, as an LED lighting fixture installed on a ceiling, there is known a lighting fixture including a long LED lighting device called a light bar and a long fixture body having a recess to which the LED lighting device is detachably attached (Patent Document 1).

[0003] This type of LED lighting device includes a long substrate, a plurality of LEDs mounted on the substrate, a long and translucent cover member covering the plurality of LEDs, and a long frame that supports the substrate and to which the cover member is attached.

[0004] The frame has, for example, a main board portion to which a substrate on which LEDs are mounted is attached, and a pair of side board portions extending from both ends in the short side direction (width direction) of the main board portion toward the ceiling side. The side board portions of the cover member are attached to the side board portions of this frame.

[0005] As described above, the conventional frame has a substantially U-shaped cross-sectional shape, and a recess surrounded by the main board portion and the pair of side board portions is formed on the ceiling side (rear side) of the frame. A power supply device or functional components such as a sensor unit are arranged in the recess of this frame.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, if a pair of side plates extending toward the ceiling are provided on the frame (i.e., the cross-sectional shape of the frame is roughly U-shaped), the wiring space for arranging conductive wires connected to power supply units and functional components on the ceiling side of the frame becomes narrower, and when installing LED lighting fixtures, the conductive wires may get caught between the frame and the fixture body.

[0008] This invention has been made in view of these problems, and aims to provide an LED lighting device and an LED lighting fixture that can widen the wiring space on the rear side of the frame and suppress wire entanglement when installing the LED lighting fixture. [Means for solving the problem]

[0009] To achieve the above objective, one embodiment of the LED lighting device according to the present invention comprises a substrate on which LEDs are arranged, an elongated frame to which the substrate is attached, and an elongated cover member attached to the frame so as to cover the LEDs, wherein the frame has a portion to which the substrate is attached and which is formed as a whole in a flat plate shape, and the frame has a folded portion formed by folding back the tip of the portion in the short direction in the thickness direction.

[0010] Furthermore, one embodiment of the LED lighting fixture according to the present invention comprises the above-mentioned LED lighting device and a fixture body that holds the LED lighting device. [Effects of the Invention]

[0011] This design increases the wiring space at the rear of the frame and prevents conductive wires from getting caught when installing LED lighting fixtures. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a perspective view of an LED lighting fixture according to Embodiment 1. [Figure 2]FIG. 2 is an exploded perspective view of the LED lighting fixture according to Embodiment 1. [Figure 3] FIG. 3 is a cross-sectional view of the LED lighting fixture according to Embodiment 1. [Figure 4] FIG. 4 is a perspective view of the LED lighting device according to Embodiment 1 as viewed from the cover member side. [Figure 5] FIG. 5 is a perspective view of the LED lighting device according to Embodiment 1 as viewed from the back side. [Figure 6] FIG. 6 is a cross-sectional perspective view of the LED lighting device according to Embodiment 1. [Figure 7] FIG. 7 is an exploded perspective view of the LED lighting device according to Embodiment 1. [Figure 8] FIG. 8 is a diagram for explaining an attachment method when attaching the LED lighting device to the fixture body in the LED lighting fixture according to Embodiment 1. [Figure 9] FIG. 9 is a cross-sectional view of the LED lighting fixture according to Embodiment 1. [Figure 10] FIG. 10 is a cross-sectional view of the LED lighting fixture according to Embodiment 2. [Figure 11] FIG. 11 is a cross-sectional view of the LED lighting fixture according to Embodiment 3. [Figure 12] FIG. 12 is a cross-sectional view of the LED lighting fixture according to Modified Example 1. [Figure 13] FIG. 13 is a cross-sectional view of the LED lighting fixture according to Modified Example 2. [Figure 14] FIG. 14 is a cross-sectional view of the LED lighting fixture according to Modified Example 3. [Figure 15] FIG. 15 is a cross-sectional view of the LED lighting fixture according to Modified Example 4. [Figure 16] FIG. 16 is a cross-sectional view of the LED lighting fixture according to Modified Example 5. [Figure 17] FIG. 17 is a cross-sectional view of the LED lighting fixture according to Modified Example 6. [Figure 18] FIG. 18 is a cross-sectional view of the LED lighting fixture according to Modified Example 7. [Figure 19]FIG. 19 is a cross-sectional view of the LED lighting fixture according to Modification 8. [Figure 20] FIG. 20 is a cross-sectional view of the LED lighting fixture according to Modification 9. [Figure 21] FIG. 21 is a cross-sectional view of the LED lighting fixture according to Modification 10. [Figure 22] FIG. 22 is a perspective view of the frame used in the LED lighting fixtures according to Modifications 8 to 10. [Figure 23] FIG. 23 is a cross-sectional view of the LED lighting fixture according to Modification 11. [Figure 24] FIG. 24 is a cross-sectional view of the LED lighting fixture according to Modification 12. [Figure 25] FIG. 25 is a cross-sectional view of the LED lighting fixture according to Modification 13.

BEST MODE FOR CARRYING OUT THE INVENTION

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present invention. Therefore, the numerical values, components, arrangement positions and connection forms of the components, and the steps and the order of the steps shown in the following embodiments are merely examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest concept of the present invention are described as optional components.

[0014] Note that each figure is a schematic diagram and not necessarily a strictly accurate representation. Also, in each figure, substantially identical components are denoted by the same reference numerals, and redundant explanations are omitted or simplified. In each figure, the X, Y, and Z axes represent the three axes of a three-dimensional Cartesian coordinate system. In this embodiment, the Z-axis direction is defined as the vertical direction, and the direction perpendicular to the Z-axis (parallel to the XY plane) is defined as the horizontal direction. The X and Y axes are orthogonal to each other and both are orthogonal to the Z-axis. Note that in this specification, the terms "up" and "down" do not necessarily refer to the upward direction (vertically upward) and the downward direction (vertically downward) in absolute spatial perception.

[0015] (Embodiment 1) First, the configuration of the LED lighting fixture 1 according to Embodiment 1 will be explained using Figures 1 to 3. Figure 1 is a perspective view of the LED lighting fixture 1 according to Embodiment 1. Figure 2 is an exploded perspective view of the same LED lighting fixture 1. Figure 3 is a cross-sectional view of the same LED lighting fixture 1. Note that Figure 3 shows a cross-section when the LED lighting fixture 1 is cut by a plane parallel to the short side.

[0016] As shown in Figures 1 to 3, the LED lighting fixture 1 according to this embodiment comprises a fixture body 2 and an LED lighting device 3 attached to the fixture body 2.

[0017] The fixture body 2 holds the LED lighting device 3. The fixture body 2 is installed in a predetermined location in the building. In this embodiment, the LED lighting fixture 1 is a ceiling-mounted lighting fixture. Therefore, the fixture body 2 is attached to the ceiling of the room using bolts or the like.

[0018] In this embodiment, the fixture body 2 is made of sheet metal and is formed into a long, flat box shape in the Y-axis direction by bending or other processes applied to the metal plate. As shown in Figure 2, the fixture body 2 is provided with a recess 2a having a rectangular opening. The recess 2a is provided in a long shape along the longitudinal direction of the fixture body 2. The recess 2a is a storage section for housing the LED lighting device 3 and is provided over substantially the entire length of the fixture body 2. Furthermore, as shown in Figures 2 and 3, on both sides of the recess 2a in the width direction of the fixture body 2, there are inclined surfaces 2b that extend from the opening edge of the recess 2a and slope upward (towards the ceiling) as they extend outwards.

[0019] The LED lighting device 3 is a light source unit that uses LEDs as its light source. The LED lighting device 3 is detachably attached to the recess 2a of the fixture body 2. 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. As will be described in detail later, the LED lighting device 3 and the fixture body 2 can be fixed together by hooking the hook fitting 5 and elastic retaining member 6 (kick spring in this embodiment) provided on the LED lighting device 3 onto the fixture body 2 and securing them.

[0020] As shown in Figure 3, the LED lighting device 3 emits light using power supplied from the power supply unit 4 housed in the fixture body 2. The power supply unit 4 is a device for supplying power to the LED lighting device 3. The power supply unit 4 is an example of an electrical functional component.

[0021] The power supply unit 4 is located on the rear side of the LED lighting device 3. Specifically, the power supply unit 4 is located in the recess 2a of the fixture body 2. In this embodiment, the power supply unit 4 is attached to the LED lighting device 3 as part of the LED lighting device 3 and is integrated with the LED lighting device 3. However, the power supply unit 4 may not be integrated with the LED lighting device 3 and may be located separately from the LED lighting device 3 in the fixture body 2.

[0022] The power supply unit 4 is composed of a power supply circuit that generates power to illuminate the LED lighting device 3. Specifically, the power supply unit 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 this embodiment, the power supply unit 4 further has a circuit case 4c that houses the circuit board 4a on which the plurality of electronic components 4b are mounted. The circuit case 4c is, for example, a metal housing. The power supply circuit that constitutes the power supply unit 4 converts AC power from an external power source, such as a commercial power supply, into DC power at a predetermined level by rectifying, smoothing, and stepping down the voltage, and supplies the DC power to the LEDs of the LED lighting device 3.

[0023] AC power is supplied to the power supply unit 4 via a power terminal block 8 (see Figure 2), to which power lines (such as VVF cables) that are inserted from the ceiling through a through-hole in the fixture body 2 and pulled out into a recess 2a of the fixture body 2 are connected. The power terminal block 8 is installed in the recess 2a of the fixture body 2.

[0024] Next, the detailed structure of the LED lighting device 3 will be described using Figures 4 to 7, with reference to Figures 1 to 3. Figure 4 is a perspective view of the LED lighting device 3 according to Embodiment 1, as seen from the cover member 30 side, and Figure 5 is a perspective view of the same LED lighting device 3 as seen from the back side. Figure 6 is a cross-sectional perspective view of the same LED lighting device 3. Figure 7 is an exploded perspective view of the same LED lighting device 3.

[0025] As shown in Figures 2, 4, and 5, the LED lighting device 3 is a long, linear light source called a light bar. The LED lighting device 3 emits light of a predetermined color, such as white light.

[0026] As shown in Figures 3, 6, and 7, the LED lighting device 3 comprises a substrate 10, LEDs 20 arranged on the substrate 10, a cover member 30 covering the LEDs 20, a frame 40 supporting the substrate 10, and an end cap 50.

[0027] The substrate 10 is a mounting substrate for mounting the LED 20. In this embodiment, the substrate 10 is formed in a substantially rectangular shape that is elongated in the longitudinal direction (Y-axis direction) of the frame 40. The thickness of the substrate 10 is, for example, 1.0 mm. The substrate 10 may be approximately the same length as the total length of the frame 40 in the longitudinal direction, or multiple substrates may be arranged along the longitudinal direction of the frame 40. As shown in Figure 7, in this embodiment, two substrates 10 are arranged along the longitudinal direction of the frame 40.

[0028] As shown in Figures 6 and 7, the substrate 10 has a first surface 10a and a second surface 10b that faces away from the first surface 10a. The first surface 10a of the substrate 10 is the front surface on which the LED 20 is mounted. On the other hand, the second surface 10b of the substrate 10 is the back surface that faces the frame 40. In this embodiment, the second surface 10b of the substrate 10 is in contact with the frame 40.

[0029] The substrate 10 is, for example, a printed circuit board (PCB) on which metal wiring is formed in a predetermined pattern. A resist made of an insulating resin material may be formed on the surface of the substrate 10 to protect the wiring and ensure dielectric strength. The substrate 10 may be a single-sided PCB with wiring formed only on the first surface 10a on which the LED 20 is mounted, or a double-sided PCB with wiring formed on both the first surface 10a and the second surface 10b.

[0030] The substrates used to make up the substrate 10 include resin substrates made of insulating resin materials, ceramic substrates made of sintered bodies of ceramic materials such as alumina, and metal base substrates obtained by applying an insulating coating to the surface of a metal substrate made of a metal material such as aluminum or copper.

[0031] If the substrate 10 is made of a resin substrate, the resin substrate can be, for example, a glass epoxy substrate (CEM-3, FR-4, etc.) made of glass fibers and epoxy resin, a paper phenol substrate (FR-1, FR-2) made of kraft paper or the like and phenol resin, a paper epoxy substrate (FR-3) made of paper and epoxy resin, or a polyimide substrate made of polyimide or the like. Furthermore, the substrate 10 may be a rigid substrate or a flexible substrate in the form of a film.

[0032] The metal wiring formed on the substrate 10 is electrically connected to the power supply unit 4. In this case, the electrodes or connector terminals formed on the substrate 10 and the power supply unit 4 are connected by conductive wires. The conductive wires connecting the circuit board 10 and the power supply unit 4 are, for example, inserted through holes provided in the frame 40.

[0033] As shown in Figures 6 and 7, a plurality of LEDs 20 are mounted on the first surface 10a of the substrate 10. In this embodiment, the plurality of LEDs 20 are mounted in a straight line along the longitudinal direction (Y-axis direction) of the substrate 10 at predetermined intervals. Specifically, the plurality of LEDs 20 are mounted along substantially the entire length in the longitudinal direction of the cover member 30 and the frame 40. Note that the plurality of LEDs 20 may be mounted in multiple rows along the longitudinal direction of the substrate 10, rather than in a single row.

[0034] LED20 is an example of a light-emitting element. In this embodiment, each of the multiple LEDs 20 is an individually packaged SMD structure LED element (LED light source). In this case, each LED 20 comprises a white container (package) made of resin or ceramic, an LED chip (bare chip) placed inside the container, and a sealing member that seals the LED chip. In this embodiment, LED 20 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 as the sealing member that fills the container.

[0035] Multiple LEDs 20 emit light due to a DC current supplied from the power supply 4 via conductive wires connecting the power supply 4 and the circuit board 10.

[0036] Multiple LEDs 20 are covered by a cover member 30. Specifically, all LEDs 20 are covered by the cover member 30. The cover member 30 is an example of a light-transmitting cover, and transmits light emitted from the LEDs 20. In this embodiment, the cover member 30 is not only light-transmitting but also a diffuser cover. Therefore, the light from the LEDs 20 incident on the cover member 30 is diffused (scattered) by the cover member 30 and then transmitted through the cover member 30.

[0037] As shown in Figures 3 and 6, the cover member 30 covers the substrate 10. Specifically, the cover member 30 is positioned opposite the first surface 10a of the substrate 10 so as to cover the multiple LEDs 20. In this embodiment, the cover member 30 covers the entire substrate 10 on which the LEDs 20 are arranged.

[0038] As shown in Figures 5 and 6, the cover member 30 further covers the frame 40 on which the substrate 10 is placed. In this embodiment, the cover member 30 covers the entire frame 40 on which the substrate 10 is placed. The cover member 30 is formed in an elongated shape in the Y-axis direction, similar to the substrate 10 and the frame 40.

[0039] The cover member 30 is attached to the frame 40. The cover member 30 and the frame 40 form a cylindrical body, and the circuit board 10 and the multiple LEDs 20 mounted on the circuit board 10 are housed inside this cylindrical body.

[0040] The cover member 30 is attached to the frame 40 so as to cover the substrate 10 and the LED 20. As shown in Figures 3 and 6, the cover member 30 has a cover body portion 31 and a mounting portion 32 connected to the cover body portion 31.

[0041] As shown in Figure 7, the cover body portion 31 is elongated in the Y-axis direction and formed in a trough shape. The cover body portion 31 is, for example, a flattened, substantially semi-cylindrical shape. Therefore, the cover body portion 31 has an elongated rectangular open end face that extends in the Y-axis direction. Also, X When cut along the axial direction, the cross-sectional shape of the cover body 31 has a curved shape that is roughly arc-shaped.

[0042] As shown in Figures 3 and 6, the cover body 31 includes protrusions 31a that project outward in the width direction from the mounting portion 32. The protrusions 31a are formed at both ends of the cover body 31 in the short direction (width direction). Each protrusion 31a has a recess 31a1 that is recessed on the side opposite to the frame 40. However, if a recess 31a1 is formed, this recess 31a1 may become an insect pocket, accumulating insect carcasses and foreign matter, which may cause the short end of the cover body 31 to not shine brightly. Therefore, it is not necessary to form a recess 31a1 in each protrusion 31a. In this case, for example, the shape of the XZ cross section of the protrusion 31a may be V-shaped, and the ceiling-side portion of the protrusion 31a may be formed to be on the same plane as the first clamping piece 32a of the mounting portion 32.

[0043] The mounting portion 32 is the part that is attached to the frame 40. Specifically, the mounting portion 32 is attached to the end of the frame 40 in the short direction (width direction). The mounting portion 32 includes an extended portion that extends from the cover body portion 31 toward the ceiling.

[0044] In this embodiment, the mounting portions 32 are provided at both ends of the frame 40 in the short direction. In other words, the cover member 30 has a pair of mounting portions 32.

[0045] A pair of mounting portions 32 are provided on the cover body portion 31. Specifically, the pair of mounting portions 32 are formed as a pair of legs that stand upright on the cover body portion 31 from each of the short ends (X-axis direction) of the cover body portion 31. Therefore, the pair of mounting portions 32 protrude from the cover body portion 31 toward the ceiling. As shown in Figure 7, each of the pair of mounting portions 32 is formed in an elongated shape along the Y-axis direction. The lengths of the pair of mounting portions 32 in the Y-axis direction are the same, but are not limited to this.

[0046] As shown in Figures 3 and 6, the mounting portion 32 has a first clamping piece 32a and a second clamping piece 32b as a pair of clamping pieces that sandwich the short end of the frame 40. Therefore, the short end of the frame 40 is located between the first clamping piece 32a and the second clamping piece 32b and is sandwiched between the first clamping piece 32a and the second clamping piece 32b. As a result, the frame 40 is held in place by the mounting portion 32 with its movement in the thickness direction (Z-axis direction) restricted. Thus, the mounting portion 32 also functions as a retaining portion for holding the frame 40.

[0047] Specifically, the mounting portion 32 has a first clamping piece 32a and a second clamping piece 32b, as well as a vertical plate portion 32c extending in the Z-axis direction. Therefore, the mounting portion 32 has a U-shaped recess in cross-section composed of the first clamping piece 32a, the second clamping piece 32b, and the vertical plate portion 32c. The short end of the frame 40 is inserted into this recess of the mounting portion 32. As a result, the frame 40 is restricted not only in the thickness direction (Z-axis direction) but also in the horizontal direction (X-axis direction).

[0048] The first clamping piece 32a and the second clamping piece 32b are plate-shaped pieces with a uniform thickness. In the first clamping piece 32a and the second clamping piece 32b, the first clamping piece 32a is a plate-shaped piece located on the floor side, and the second clamping piece 32b is a plate-shaped piece located on the ceiling side.

[0049] The first clamping piece 32a and the second clamping piece 32b are provided on each of the pair of mounting portions 32. Therefore, both ends of the frame 40 in the short direction are held by the first clamping piece 32a and the second clamping piece 32b on each of the pair of mounting portions 32. Specifically, each end of the frame 40 in the short direction is inserted into a U-shaped recess in each mounting portion 32, which is formed by the first clamping piece 32a, the second clamping piece 32b, and the upright plate portion 32c.

[0050] Furthermore, in each mounting portion 32, both the first clamping piece 32a and the second clamping piece 32b do not necessarily have to be in contact with the short-side end of the frame 40. Specifically, only one of the first clamping piece 32a and the second clamping piece 32b may be in contact with the short-side end of the frame 40. For example, when the LED lighting fixture 1 is installed on the ceiling, as shown in Figure 3, the ceiling-side second clamping piece 32b may not be in contact with the short-side end of the frame 40, and only the floor-side first clamping piece 32a may be in contact with the short-side end of the frame 40. In this case, the floor-side first clamping piece 32a functions as a stopper to support the frame 40. In other words, the pair of floor-side first clamping pieces 32a support the short-side end of the frame 40 so that the frame 40 does not shift toward the light-emitting side (floor side) of the LED 20.

[0051] The first clamping piece 32a and the second clamping piece 32b are erected from the vertical plate portion 32c on the inside of the vertical plate portion 32c. Specifically, the first clamping piece 32a and the second clamping piece 32b are formed to protrude in the X-axis direction and extend in the X-axis direction. The first clamping piece 32a and the second clamping piece 32b are formed parallel to each other.

[0052] In this embodiment, the lengths of the first clamping piece 32a and the second clamping piece 32b in the X-axis direction are the same for each mounting portion 32. Similarly, the lengths of the pair of first clamping pieces 32a in a pair of mounting portions 32 are the same in the X-axis direction, and the lengths of the pair of second clamping pieces 32b in a pair of mounting portions 32 are also the same in the X-axis direction. The first clamping piece 32a and the second clamping piece 32b in each of the pair of mounting portions 32 are located at the same height in the Z-axis direction. Therefore, the two first clamping pieces 32a and the two second clamping pieces 32b in the short-side direction of the cover member 30 are symmetrical.

[0053] Furthermore, as shown in Figure 7, the first clamping piece 32a and the second clamping piece 32b in each mounting portion 32 are formed in an elongated shape along the Y-axis direction. Also, the lengths of the first clamping piece 32a and the second clamping piece 32b in the Y-axis direction are the same. For example, the first clamping piece 32a and the second clamping piece 32b are the same shape and length, but are not limited to this. In addition, the lengths of the vertical plate portions 32c in the pair of mounting portions 32 in the Z-axis direction are the same, but are not limited to this.

[0054] The mounting portion 32 configured in this way also has the function of preventing insects from entering the space between the cover member 30 and the frame 40. For example, by the first clamping piece 32a and the frame 40 coming into contact, it is possible to prevent insects from entering through the gap between the first clamping piece 32a of the cover member 30 and the frame 40. This prevents insects from entering the space between the cover body portion 31 of the cover member 30 and the frame 40.

[0055] The cover member 30 is made of a translucent resin material such as acrylic or polycarbonate, or a translucent material such as glass. In this embodiment, the cover member 30 is made of a translucent resin material. In this case, the cover member 30 can be a milky white cover member in which a light diffusing material is dispersed inside. Such a cover member 30 can be manufactured by resin molding a translucent resin material mixed with a light diffusing material into a predetermined shape. As the light diffusing material, light-reflective fine particles such as silica particles can be used.

[0056] Furthermore, the cover member 30 may be constructed by forming a milky white light-diffusing film containing a light-diffusing material on the surface (inner or outer surface) of the transparent cover, rather than dispersing the light-diffusing material inside. Also, the cover member 30 may be configured to have light-diffusing properties by applying a diffusion process rather than using a light-diffusing material. For example, the cover member 30 may be configured to have light-diffusing properties by forming minute irregularities on the surface of the transparent cover by applying a surface treatment such as texturing, or by printing a dot pattern on the surface of the transparent cover. Even when the cover member 30 undergoes a diffusion process... Furthermore, to enhance light diffusion, a light-diffusing material may be added.

[0057] In this embodiment, the cover body portion 31 and the mounting portion 32 constituting the cover member 30 are formed integrally. Therefore, the cover body portion 31 and the mounting portion 32 are made of the same material.

[0058] The cover member 30 may be made of two or more types of resin materials, rather than just one. For example, the cover body 31 and the mounting part 32 may be made of different resin materials. As an example, the cover body 31 may be made of a translucent resin material and the mounting part 32 may be made of a white resin material. In this case, the cover member 30 can be formed by two-color molding.

[0059] The frame 40 is a long support member (base member) that supports the substrate 10. The substrate 10 is attached to the frame 40. Specifically, the substrate 10 is supported by the frame 40 by placing the substrate 10 on the frame 40 and fixing the substrate 10 to the frame 40. In this embodiment, the frame 40 supports not only the substrate 10 but also the cover member 30. Specifically, the cover member 30 is fixed to the frame 40.

[0060] The frame 40 is made of sheet metal and is composed of metal plates. The frame 40 is formed into a predetermined shape by rolling or pressing a single sheet of metal (metal plate), for example, SPCC (Steel Plate Cold Commercial).

[0061] As shown in Figures 3 to 7, the frame 40 has a main plate portion which is formed as a flat plate overall. In this embodiment, the frame 40 is composed only of the main plate portion, and all or most of the frame 40 is formed as a flat plate. In other words, the frame 40 is formed as a flat plate overall. Specifically, the frame 40 has a substantially I-shape in the XZ cross section. Therefore, the frame 40 does not have a pair of side plate portions that extend toward the ceiling side, like conventional frames with a substantially U-shaped cross section, and has a thin shape with a low height in the Z-axis direction. The frame 40 is formed in an elongated shape in the Y-axis direction, similar to the substrate 10 and the fixture body 2.

[0062] The thickness of the metal plates constituting the frame 40 is, for example, 0.2 mm to 2 mm. In this embodiment, since the frame 40 is formed by sheet metal processing, the thickness of the metal plates constituting the frame 40 is preferably 1 mm or less. Specifically, the thickness of the metal plates constituting the frame 40 was set to 0.5 mm.

[0063] A circuit board 10 on which LEDs 20 are mounted is placed on the frame 40. Specifically, the circuit board 10 is placed on the portion of the frame 40 that is formed in a flat, plate-like shape (main plate portion). The circuit board 10 is placed on the floor-facing surface of the frame 40. The second surface 10b of the circuit board 10 and the floor-facing surface of the frame 40 are in surface contact.

[0064] In this embodiment, the substrate 10 is placed in a recess 42 formed in the frame 40. The recess 42 is formed to be recessed on the rear side (ceiling side). The formation of the recess 42 creates a step in the frame 40. In this way, since the substrate 10 is placed in the recess 42, the width of the recess 42 is greater than the width of the substrate 10.

[0065] The depth of the recess 42 may be greater than or equal to the thickness of the substrate 10, or less than the thickness of the substrate 10. However, even if the depth of the recess 42 is greater than or equal to the thickness of the substrate 10, the depth of the recess 42 is such that the frame 40 as a whole appears flat. For example, the depth of the recess 42 The depth is three times or less the thickness of the substrate 10, preferably two times or less.

[0066] The substrate 10 is attached to a portion of the frame 40 that is formed as a flat plate (main plate portion). In this embodiment, as shown in Figure 7, the substrate 10 is fixed to the frame 40 by claw portions 41 formed on the frame 40. The claw portions 41 are formed by cutting and bending a part of the sheet metal frame 40. The substrate 10 placed on the frame 40 is fixed to the frame 40 by bending the claw portions 41 and engaging them with the claw portions 41. The frame 40 is also provided with through holes through which conductive wires are inserted to electrically connect the electrodes of the substrate 10 to the power supply unit 4.

[0067] The flat frame 40 as a whole is positioned parallel to the ceiling. Specifically, the flat frame 40 is positioned such that the substrate 10 placed on the frame 40 is parallel to the ceiling.

[0068] The ends of the frame 40 in the shorter direction (width direction) are attached to the cover member 30. Specifically, each of the ends of the frame 40 in the shorter direction is attached to the cover member 30. More specifically, the frame 40 is attached to the cover member 30 by being clamped between the first clamping piece 32a and the second clamping piece 32b provided on each of the pair of mounting portions 32 on the cover member 30.

[0069] In this embodiment, the folded portion 43 provided at the short end of the frame 40 is attached to the cover member 30. In other words, the folded portion 43 of the frame 40 is attached to the cover member 30. Specifically, the folded portion 43 of the frame 40 is inserted into a U-shaped recess in the cover member 30, which is composed of the first clamping piece 32a, the second clamping piece 32b, and the upright plate portion 32c.

[0070] The folded portion 43 is formed by folding back the short-side end of the flat-plate portion (main plate portion) of the frame 40 in the thickness direction. In this embodiment, the folded portion 42 is composed of a folded portion and a portion opposite the folded portion (an unfolded portion). The folded portion of the folded portion 43 can be formed, for example, by curling and rolling up the short-side end of the frame 40 towards the ceiling. However, the folded portion 43 is not limited to being formed by curling, and may also be formed by hemming or the like.

[0071] When fixing the cover member 30 and the frame 40, the folded portion 43 of the frame 40 is inserted between the first clamping piece 32a and the second clamping piece 32b of the cover member 30, and the folded portion 43 is locked to the first clamping piece 32a and the second clamping piece 32b. This allows the cover member 30 and the frame 40 to be locked and fixed together. The cover member 30 and the frame 40 may also be further fixed together with mounting screws.

[0072] As shown in Figure 3, a spatial area S is formed on the rear side (ceiling side) of the frame 40. In other words, a spatial area S exists between the fixture body 2 and the frame 40. The power supply unit 4 is located in this spatial area S. The power supply unit 4 is positioned towards one side in the shorter direction of the frame 40. Specifically, the power supply unit 4 is positioned towards the side where the hanging bracket 5 is provided (the left side in Figure 3).

[0073] Furthermore, functional components related to the lighting of the LEDs 20 may be arranged in this spatial region S as components constituting the LED lighting device 3. Such functional components are functional expansion modules. Functional expansion modules include, for example, a sensor unit equipped with various sensors such as a motion sensor and a brightness sensor, and a wireless module having an antenna and control circuit for receiving wireless signals. The second light source is an infrared module having a light-receiving element and control circuit for receiving infrared signals, or a second light source separate from the LED 20 (first light source) mounted on the circuit board 10. The wireless signal or infrared signal is, for example, a remote control signal for turning the LED 20 on and off or for dimming and adjusting its color, or a setting signal for making various settings of the LED lighting device 3. The second light source is a light source for monitor display, 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), a color light source for effect (for example, red, blue, and green LED light sources), or an emergency light source that lights up in an emergency. If an emergency light source is used as the second light source, the cover and / or cover member 30 covering the second light source should preferably be made of a flame-retardant material such as glass. The functional components may also be part of the power supply device 4.

[0074] The functional components located in spatial region S and the power supply unit 4 are electrically connected by conductive wires. The conductive wires are one of the components that make up the LED lighting device 3. The conductive wires are located in spatial region S together with the functional components. In other words, the conductive wires connected to the functional components, along with the power supply wires connected to the power supply unit 4, are housed in spatial region S. The elastic retaining member 6 shown in Figure 3 is also housed in spatial region S.

[0075] The cover member 30 and the frame 40 are fixed together to form a long cylindrical body. As shown in Figures 1 to 5, end caps 50 are attached to each of the longitudinal ends of the cylindrical body formed by the cover member 30 and the frame 40.

[0076] In this embodiment, the end cap 50 is provided to seal the open end of the cylindrical body composed of the cover member 30 and the frame 40. In other words, the end cap 50 is attached to the cylindrical body so as to cover the open end of the cylindrical body composed of the cover member 30 and the frame 40, thereby closing the open end of the cylindrical body. This prevents dust, insects, etc. from entering the inside of the cylindrical body composed of the cover member 30 and the frame 40. Note that the end cap 50 does not completely seal the open end of the cylindrical body composed of the cover member 30 and the frame 40, and there may be a small gap between the end cap 50 and the frame 40.

[0077] The end caps 50 are provided at each of the longitudinal ends of the cover member 30. In other words, the end caps 50 are cover ends provided at the ends of the cover member 30. The end caps 50 are directly or indirectly connected to the longitudinal ends of the cover member 30. For example, the end caps 50 and the cover member 30 are fixed together with an adhesive.

[0078] The end cap 50 is made of a resin material. The end cap 50 may or may not be light-transmitting. A light-transmitting end cap 50 is made of a transparent resin material such as polycarbonate or acrylic. The end cap 50 may also be light-transmitting and diffusive. In this case, the end cap 50 may be made of the same material as the cover member 30, or it may be made of a different material from the cover member 30.

[0079] The LED lighting device 3, configured in this way, is housed in the recess 2a of the fixture body 2 and attached to the fixture body 2. Specifically, the LED lighting device 3 is attached to the fixture body 2 using the hook fitting 5 and elastic retaining member 6 shown in Figures 3 to 5. The hook fitting 5 and elastic retaining member 6 are fixed to the frame 40.

[0080] As shown in Figure 3, the hook fitting 5 is located on the rear side (ceiling side) of the frame 40. The hook fitting 5 is a sheet metal plate member. The hook fitting 5 is located on the short side of the frame 40. It is fixed to one end in the direction of the hand. For example, the hook fitting 5 is fixed to the frame 40 by a fixing member such as a screw and extends outward from the frame 40. The hook fitting 5 is hooked onto the fixture body 2. In this embodiment, a slit 2c (see Figure 2) is provided on the inner wall surface of the recess 2a of the fixture body 2, and the hook fitting 5 is hooked onto this slit 2c.

[0081] The elastic retaining member 6 is located on the rear side (ceiling side) of the frame 40. The elastic retaining member 6 is, for example, a spring such as a kick spring. The elastic retaining member 6 is fixed to the other end of the frame 40 in the short direction. In other words, the elastic retaining member 6 is fixed to the frame 40 on the opposite side from the hook fitting 5 in the width direction. The elastic retaining member 6 is fixed to the frame 40 by fixing members such as screws. Specifically, the elastic retaining member 6 is fixed to a retaining fitting 6c (see Figure 5) which is fixed to the frame 40 by mounting screws. The elastic retaining member 6 is detachably attached to the fixture body 2. In this embodiment, the elastic retaining member 6 is detachably locked to a receiving fitting 7 which is fixed to the fixture body 2.

[0082] As shown in Figure 2, there are two hook fittings 5 ​​and two elastic retaining members 6, but this is not limited to that. Also, the hook fittings 5 ​​and elastic retaining members 6 are positioned opposite each other in the short direction of the frame 40, but this is not limited to that.

[0083] Here, the method for attaching the LED lighting device 3 to the fixture body 2 will be explained using Figure 8. Figure 8 is a diagram illustrating the method for attaching the LED lighting device 3 to the fixture body 2 in the LED lighting fixture 1 according to Embodiment 1.

[0084] When attaching the LED lighting device 3 to the fixture body 2 installed on the ceiling 100, first, as shown in Figure 8(a), the LED lighting device 3 is suspended in a cantilevered state by hooking the hook fitting 5 into the slit 2c (see Figure 2) provided in the fixture body 2, and one end of the elastic retaining member 6, which is a kick spring, is locked to the receiving fitting 7 fixed to the fixture body 2.

[0085] In this case, since the frame 40 is generally flat and does not have a side plate portion extending to the rear, the length of the mounting portion 32 of the cover member 30 attached to the frame 40 in the Z-axis direction can be shortened. As a result, when the LED lighting device 3 is viewed from the side, a large portion of the elastic retaining member 6 is exposed, so a part of the elastic retaining member 6 (specifically, the end of the kick spring) can be easily pulled out.

[0086] Next, as shown in Figure 8(b), the LED lighting device 3 is pushed into the recess 2a of the fixture body 2 by rotating the LED lighting device 3 using the hook fitting 5 as a pivot point while pushing the hook fitting 5 into the back of the slit 2c.

[0087] In this embodiment, the power supply unit 4, located on the rear side of the frame 40, is positioned closer to the hooking bracket 5. In other words, the power supply unit 4 is positioned closer to the rotation axis. By positioning the heavy power supply unit 4 closer to the rotation axis in this way, the LED lighting device 3 can be rotated with minimal force.

[0088] Then, by rotating the LED lighting device 3 and pushing it into the recess 2a of the fixture body 2, the LED lighting device 3 can be fitted into the recess 2a of the fixture body 2, as shown in Figure 8(c). This allows the LED lighting device 3 to be attached to the fixture body 2.

[0089] When removing the LED lighting device 3 from the fixture body 2, perform the reverse operation described above. Then, the LED lighting device 3 can be removed from the fixture body 2.

[0090] As described above, when attaching or detaching the LED lighting device 3 to the fixture body 2, the LED lighting device 3 in this embodiment uses a frame 40 that is formed in a flat shape overall, which helps to prevent scratches on the LED lighting device 3 and the fixture body 2, and prevents the conductive wires routed to the rear of the frame 40 from getting caught. This point will be explained below.

[0091] Conventional frames have side plates that extend towards the ceiling, so when attaching an LED lighting device with this frame to the fixture body 2, the side plates of the frame may come into contact with the fixture body 2, or the side plates of the cover members attached to these side plates may come into contact with the fixture body 2, potentially causing damage to unintended areas.

[0092] In contrast, in the LED lighting device 3 according to this embodiment, the frame 40 is flat overall, and the frame 40 does not have side plates that extend toward the ceiling. As a result, the overall thickness of the frame 40 is reduced, and consequently, the overall thickness of the cover member 30 attached to the frame 40 is also reduced. Therefore, when attaching the LED lighting device 3 to the fixture body 2, it is possible to prevent any part of the frame 40 or any part of the cover member 30 from coming into contact with the fixture body 2. In other words, it is possible to prevent unintended damage to the LED lighting device 3 or the fixture body 2 during installation.

[0093] Furthermore, as in this embodiment, instead of rotating the LED lighting device 3 to attach it to the lighting fixture 2, a mounting spring is provided in the center of the width direction of the LED lighting device 3, and even if the LED lighting device 3 is moved vertically and pushed into the recess 2a of the fixture body 2, the frame 40 does not have a side plate portion extending toward the ceiling, and the overall thickness of the cover member 30 is thin, so the LED lighting device 3 can be easily attached to the fixture body 2.

[0094] Furthermore, if the side panels extend toward the ceiling, as in conventional frames, there is a risk that conductive wires such as power lines or signal lines routed along the ceiling side (rear side) of the frame may get caught between the side panels of the frame and the fixture body 2, or between the side panels of the cover member attached to the side panels of the frame and the fixture body 2. In other words, there is a risk of wire pinching.

[0095] In contrast, in the LED lighting device 3 according to this embodiment, the portion of the frame 40 to which the substrate 10 is attached (main plate portion) is flat overall, and the frame 40 does not have side plate portions that extend far toward the rear. Specifically, the entire frame 40 is flat. This prevents the conductive wires arranged on the ceiling side of the frame 40 from getting caught between a part of the frame 40 and the fixture body 2, or between a part of the cover member 30 and the fixture body 2. In other words, it prevents the conductive wires from getting pinched.

[0096] Thus, by using the LED lighting device 3 according to this embodiment, it is possible to prevent scratches on the LED lighting device 3 and the fixture body 2, and to prevent the conductive wires routed to the rear side of the frame 40 from getting caught in the wires. Therefore, the LED lighting device 3 can be easily attached to the fixture body 2. In other words, the ease of installation of the LED lighting fixture 1 is improved.

[0097] Furthermore, the frame 40 in this embodiment is flat overall, and unlike conventional frames, the frame 40 does not have side plates that extend toward the ceiling. Therefore, it is not necessary to provide side plates on the cover member attached to the frame to cover the side plates of the frame. In other words, the cover member 30 attached to the frame 40 also does not have side plates that extend toward the rear. As a result, as shown in Figure 3, the space area S on the ceiling side of the frame 40 can be widened. Therefore, the ceiling side (rear side) of the frame 40 This allows for more wiring space for conductive wires such as power lines that are placed in the area.

[0098] Thus, according to the LED lighting fixture 1 and LED lighting device 3 of this embodiment, it is possible to secure a wide wiring space on the rear side of the frame 40 while suppressing wire jamming of conductive wires arranged on the rear side of the frame 40 when installing the LED lighting fixture 1.

[0099] Furthermore, by using a frame 40 that is formed in a flat plate shape overall, even if the cover member 30 is attached to the frame 40, the height (thickness) of the cylindrical body composed of the frame 40 and the cover member 30 can be reduced. In other words, the height (thickness) of the LED lighting device 3 can be reduced, making the LED lighting device 3 lower profile. This makes it easier to attach and detach the LED lighting device 3 from the fixture body 2.

[0100] Furthermore, by using a flat frame 40 without side plates extending toward the ceiling, the frame 40 can be made lighter, and material and processing costs can be reduced, thus lowering the cost of the frame 40. Consequently, the LED lighting device 3 can also be made lighter and less expensive.

[0101] Furthermore, as shown in Figure 9, the LED lighting fixture 1 and LED lighting device 3 according to this embodiment are further equipped with a reinforcing member 60. Figure 9 is a cross-sectional view of the LED lighting fixture 1 according to Embodiment 1, showing the cross-section when cut through a plane passing through the reinforcing member 60.

[0102] The reinforcing member 60 supports the frame 40. In this embodiment, the reinforcing member 60 also supports the cover member 30. The reinforcing member 60 is fixed to the frame 40, for example, by mounting screws 70. However, the reinforcing member 60 and the frame 40 may be fixed by methods other than the mounting screws 70. For example, the reinforcing member 60 and the frame 40 may be fixed by crimping a part of the reinforcing member 60 and a part of the frame 40 together.

[0103] The reinforcing member 60 is a metal fitting formed into a predetermined shape by, for example, sheet metal processing on a metal plate. In this embodiment, the reinforcing member 60 has a shape formed in accordance with the shape of the rear side (ceiling side) of the LED lighting device 3. Specifically, the reinforcing member 60 is formed along the ceiling side surface of the second clamping piece 32b in the cover member 30, and also along the ceiling side surface of the frame 40.

[0104] The LED lighting device 3 may have one reinforcing member 60 or multiple reinforcing members 60. As shown in Figure 5, in this embodiment, the LED lighting device 3 has three reinforcing members 60. In this case, the reinforcing members 60 are arranged at both ends and the center of the LED lighting device 3 in the longitudinal direction.

[0105] The reinforcing member 60 may also be part of a fitting attached to the LED lighting device 3, such as a retaining bracket 6c. Furthermore, the central reinforcing member 60 may be part of the circuit case 4c that constitutes the power supply device 4.

[0106] In this way, supporting the frame 40 with the reinforcing member 60 further suppresses deformation of the frame 40. Moreover, since the frame 40 is supported from the rear side by the reinforcing member 60, it is also possible to suppress the frame 40 from coming off the cover member 30.

[0107] (Embodiment 2) Next, Embodiment 2 will be described using Figure 10. Figure 10 relates to Embodiment 2. This is a cross-sectional view of LED lighting fixture 1A.

[0108] The LED lighting fixture 1A and LED lighting device 3A according to this embodiment differ from the LED lighting fixture 1 and LED lighting device 3 according to Embodiment 1 in that the shape of the cover member 30A is different.

[0109] Specifically, in the cover member 30 of the first embodiment described above, the short end of the frame 40 was clamped from above and below by the first clamping piece 32a and the second clamping piece 32b. On the other hand, in the cover member 30A of this embodiment, the mounting portion 32A has only the second clamping piece 32b of the first clamping piece 32a and the second clamping piece 32b, and the short end of the frame 40 is supported only by the second clamping piece 32b on the ceiling side.

[0110] In this embodiment, the second clamping piece 32b is formed in a stepped shape, and the cover member 30A and the frame 40 are fixed by the mounting screw 70 by screwing the mounting screw 70 into the tip of the stepped portion of the second clamping piece 32b.

[0111] As described above, in the LED lighting fixture 1A and LED lighting device 3A according to this embodiment, similar to Embodiment 1, a frame 40 is used in which the part to which the substrate 10 is attached (main plate part) is formed in a flat plate shape as a whole. This allows for a wider wiring space on the rear side of the frame 40 and suppresses wire entanglement when installing the LED lighting fixture 1A.

[0112] (Embodiment 3) Next, Embodiment 3 will be described using Figure 11. Figure 11 is a cross-sectional view of the LED lighting fixture 1B according to Embodiment 3.

[0113] The LED lighting fixture 1B and LED lighting device 3B according to this embodiment differ from the LED lighting fixture 1 and LED lighting device 3 according to Embodiment 1 in that the shape of the cover member 30B is different.

[0114] Specifically, in this embodiment, the cover member 30B has a protruding piece 33 in addition to the cover body portion 31 and the mounting portion 32. The protruding piece 33 protrudes to the rear (towards the ceiling) of both ends in the short direction of the frame 40. In other words, the tip of the protruding piece 33 is located to the rear (towards the ceiling) of both ends in the short direction of the frame 40.

[0115] The protruding piece 33 is provided on the mounting portion 32 and protrudes from the mounting portion 32 toward the rear (ceiling side). Specifically, the protruding piece 33 protrudes toward the rear from the connection portion of the mounting portion 32 with the frame 40. More specifically, the protruding piece 33 protrudes toward the rear from the second clamping piece 32b of the mounting portion 32.

[0116] The protruding piece 33 is a vertical wall portion that is erected in a wall-like manner on the second clamping piece 32b, and is formed to rise up from the second clamping piece 32b. The protruding piece 33 is a plate-shaped piece formed with a constant thickness. In this embodiment, the protruding piece 33 is formed in a flat plate shape, and the entire protruding piece 33 is provided in a position perpendicular to the second clamping piece 32b. The protruding piece 33 is formed in an elongated shape along the Y-axis direction.

[0117] Furthermore, the protruding piece 33 is formed continuously with the vertical plate portion 32c of the mounting portion 32 along the Z-axis direction. In other words, the outer surface of the protruding piece 33 and the outer surface of the vertical plate portion 32c are flush. In this embodiment, the thickness of the protruding piece 33 and the thickness of the vertical plate portion 32c are the same. Therefore, the protruding piece 33 extends the vertical plate portion 32c toward the ceiling side beyond the second clamping piece 32b. It is structured in that way.

[0118] In this embodiment, the protruding pieces 33 are provided on each of the short sides of the cover member 30B. Specifically, the protruding pieces 33 are provided on each of the pair of mounting portions 32 and are formed to rise up from each mounting portion 32. In other words, the cover member 30B has a pair of protruding pieces 33.

[0119] The lengths of the pair of protruding pieces 33 in the Z-axis direction are the same. That is, the amount of protrusion in the Z-axis direction from the mounting portion 32 for one of the pair of protruding pieces 33 is the same as the amount of protrusion in the Z-axis direction from the mounting portion 32 for the other of the pair of protruding pieces 33. However, the lengths of the pair of protruding pieces 33 in the Z-axis direction may be different.

[0120] Each of the pair of protruding pieces 33 is formed in an elongated shape along the Y-axis direction. In this embodiment, the lengths of the pair of protruding pieces 33 in the Y-axis direction are the same. However, the lengths of the pair of protruding pieces 33 in the Y-axis direction may be different.

[0121] Furthermore, the protruding piece 33, together with the cover body portion 31 and the mounting portion 32, is integrally formed with the entire cover member 30B.

[0122] As described above, in the LED lighting fixture 1B and LED lighting device 3B according to this embodiment, similar to Embodiment 1, a frame 40 is used in which the part to which the substrate 10 is attached (main plate part) is formed as a flat plate overall, and the frame 40 does not have side plate parts that extend long toward the ceiling. This makes it possible to widen the wiring space on the rear side of the frame 40 and suppresses the possibility of conductive wires getting caught when installing the LED lighting fixture 1B.

[0123] Furthermore, in the LED lighting fixture 1B and LED lighting device 3B according to this embodiment, the cover member 30B is provided with protruding pieces 33 that project further rearward than both ends in the short direction of the frame 40. By attaching the cover member 30B having such protruding pieces 33 to the frame 40, even if the frame 40 as a whole is flat, attaching the cover member 30B to the frame 40 increases the rigidity of the cylindrical body composed of the frame 40 and the cover member 30B. This makes it possible to suppress deformation of the frame 40 during construction, etc.

[0124] In this case, the position of the tip of the protruding piece 33 on the cover member 30B is located further forward (towards the floor) than the position of the tip of the side plate portion on a conventional cover member. In other words, the total length in the Z-axis direction of the mounting portion 32 and the protruding piece 33 on the cover member 30B is shorter than the length in the Z-axis direction of the side plate portion on a conventional cover member. In other words, even if the cover member 30B is provided with a protruding piece 33, the height of the protruding piece 33 is lower than the height of the side plate portion on a conventional cover member.

[0125] As a result, even if the cover member 30B is provided with a protruding piece 33, the wiring space on the rear side of the frame 40 can be made wider compared to the case where a conventional frame having a pair of side plates and a cover member having a pair of side plates are used.

[0126] Furthermore, since the height of the protruding piece 33 is lower than the height of the side plate portion of the conventional cover member, when attaching the LED lighting device 3B to the fixture body 2, it is possible to prevent conductive wires such as power lines located on the rear side (ceiling side) of the frame 40 from getting caught between the side plate portion of the frame and the fixture body 2, or between the side plate portion of the cover member attached to this side plate portion and the fixture body 2. In other words, even if the cover member 30B is provided with a protruding piece 33, it is possible to prevent wire pinching.

[0127] Thus, in the LED lighting fixture 1B and LED lighting device 3B according to this embodiment, even with the protruding piece 33 provided, the wiring space on the rear side of the frame 40 can be widened, and the risk of conductive wires getting caught when installing the LED lighting fixture 1 can be suppressed. In other words, by providing the protruding piece 33 on the cover member 30B, the strength of the frame 40, which was reduced by making the entire frame 40 flat, can be increased. This suppresses deformation of the frame 40. Therefore, the rigidity of the LED lighting device 3B can be increased, and deformation of the LED lighting device 3B can be suppressed.

[0128] As described above, with the LED lighting fixture 1B and LED lighting device 3B according to this embodiment, even if a frame 40 formed in a flat plate shape as a whole is used, deformation of the frame 40 can be suppressed. Therefore, by using a frame 40 formed in a flat plate shape as a whole, it is possible to secure a wide wiring space on the rear side of the frame 40 and suppress wire pinching of conductive wires arranged on the rear side of the frame 40, while suppressing deformation of the frame 40. In other words, it is possible to achieve both securing a wide wiring space on the rear side of the frame 40 and suppressing wire pinching of conductive wires, and suppressing deformation of the frame 40.

[0129] Furthermore, by providing the protruding piece 33 on the cover member 30B, even if a gap occurs in the LED lighting fixture 1B at the connection point between the end (protruding portion 31a) of the cover body 31 of the cover member 30B of the LED lighting device 3B and the fixture body 2, the protruding piece 33 can cover that gap. This prevents the inside of the LED lighting fixture 1B from being visible through the gap that occurs at the connection point between the cover body 31 and the fixture body 2. Therefore, an aesthetically pleasing LED lighting fixture 1B can be realized.

[0130] The length of the protruding piece 33 in the Z-axis direction is limited to the point where it touches the receiving bracket 7. In other words, the maximum length of the protruding piece 33 in the Z-axis direction is the distance from the mounting portion 32 (second clamping piece 32b) to the receiving bracket 7. From the viewpoint of reinforcing the frame 40, a longer length of the protruding piece 33 in the Z-axis direction is preferable, but from the viewpoint of securing a wide spatial area S, a shorter length is preferable. When trying to achieve both reinforcing the frame 40 and widening the spatial area S, as an example, the length of the protruding piece 33 in the Z-axis direction should be between 1 / 4 and 3 / 4 of the distance from the mounting portion 32 (second clamping piece 32b) to the receiving bracket 7. In this embodiment, the length of the protruding piece 33 in the Z-axis direction is set to about 1 / 2 of the distance from the mounting portion 32 to the receiving bracket 7.

[0131] (modified version) Although the LED lighting fixtures and LED lighting devices according to the present invention have been described above based on Embodiments 1 to 3, the present invention is not limited to these Embodiments 1 to 3.

[0132] For example, in embodiments 1 to 3 described above, the folded portion 43 of the frame 40 was formed by curling the tip of the frame 40 in the short direction so as to bend it toward the rear (ceiling side), but it is not limited to this. Specifically, as shown in the LED lighting fixture 1C and LED lighting device 3C in Figure 12, the folded portion 43C of the frame 40C may be formed by curling the tip of the frame 40C in the short direction so as to bend it toward the front (floor side).

[0133] Furthermore, in embodiments 1 to 3 described above, the folded portion 43 of the frame 40 was formed by curling the tip of the frame 40 in the short direction, but this is not limited to this. For example, as shown in the LED lighting fixture 1D and LED lighting device 3D in Figure 13, the folded portion 43D of the frame 40D may be formed by bending the tip of the frame 40D in the short direction into a U-shape in cross-section. In this case, the folded portion 43D and the end of the circuit case 4c of the power supply device 4 are It may be locked in place.

[0134] Furthermore, as shown in Figure 14, LED lighting fixture 1E and LED lighting device 3E, the frame 40E may have a linearly formed reinforcing ridge 44 along the longitudinal direction of the frame 40E. The reinforcing ridge 44 can be formed by press working such as beading or embossing. In this embodiment, the reinforcing ridge 44 is formed by beading (stringing) on ​​the metal plate constituting the frame 40E. Specifically, the reinforcing ridge 44 can be formed by deforming the metal plate in the thickness direction by pushing the metal plate upward in one direction in the thickness direction using a mold or the like. The reinforcing ridge 44 formed in this way consists of a linear convex portion formed on one surface of the metal plate and a linear concave portion formed on the other surface of the metal plate at a position opposite to the convex portion. In other words, the thickness of the metal plate in the reinforcing ridge 44 is basically the same as the thickness of the metal plate without the reinforcing ridge 44. In this way, the strength of the frame 40E can be improved by providing the reinforcing ridge 44 to the frame 40E. Although two reinforcing portions 44 are formed, there may be one or three or more. Furthermore, the reinforcing portions 44 are not limited to being formed on only one side of the frame 40E, but may be formed on both sides of the frame 40E.

[0135] Furthermore, in embodiments 1 to 3 described above, the lengths of the first clamping piece 32a and the second clamping piece 32b in the mounting portion 32 of the cover member 30 in the X-axis direction were the same, but this is not limited to this. For example, as in the mounting portion 32F of the cover member 30F in the LED lighting fixture 1F and LED lighting device 3F shown in Figure 15, the first clamping piece 32a on the floor side may be longer than the second clamping piece 32b on the ceiling side. This allows the cover member 30F to be easily assembled with the frame 40 because there is contact with the frame member 30F when it is spread out to fit into the frame 40. Moreover, because the first clamping piece 32a on the floor side is longer, the frame 40 hits the first clamping piece 32a and stops when the frame 40 is inserted from above, allowing the cover member 30F and the frame 40 to be easily assembled. Furthermore, by using a different material (for example, a white material) for the longer first clamping piece 32a and manufacturing the cover member 30F using two-color molding, the white paint on the frame 40 can be eliminated, and the light loss due to the cover member 30F can be reduced.

[0136] Alternatively, as shown in Figure 16, the mounting portion 32G of the cover member 30G in the LED lighting fixture 1G and LED lighting device 3G, the second clamping piece 32b on the ceiling side may be longer than the first clamping piece 32a on the floor side. This makes it difficult for the cover member 30G to come off even when it is spread open, thus preventing the cover member 30G from coming off when the LED lighting fixture 1G is in use. Furthermore, the shorter first clamping piece 32a on the floor side reduces light loss due to the cover member 30F.

[0137] Furthermore, in embodiments 1 to 3 described above, the frame 40 was located near the opening surface of the opening of the lighting fixture 2, but this is not limited to this. For example, as shown in the LED lighting fixture 1H and LED lighting device 3H in Figure 17, the frame 40 may be configured to extend into the interior of the fixture body 2 by lengthening the vertical plate portion 32c of the mounting portion 32H of the cover member 30H. This increases the distance between the LED 20 placed on the substrate 10 attached to the frame 40 and the cover body portion 31 of the cover member 30H, thereby suppressing brightness unevenness (graininess) caused by the light of the LED 20 and improving the brightness uniformity of the cover member 30H. In addition, by increasing the distance between the LED 20 and the cover body portion 31, the temperature rise of the LED 20 can be suppressed, thereby improving the luminous efficiency of the LED 20.

[0138] Alternatively, as shown in Figure 18, the mounting portion 32 of the cover member 30I is positioned on the floor side of the opening of the fixture body 2. The frame 40 may be configured to be positioned on the floor side of the opening of the fixture body 2 by means of such a configuration. This increases the internal space S of the fixture body 2. Furthermore, by using the structure of the LED lighting fixture 1I shown in Figure 18, the width of the frame 40 can be made larger than the width of the opening of the fixture body 2. In addition, the frame 40 can be brought into contact with the opening of the fixture body 2 via the mounting portion 32 of the cover member 30I, making positioning easier.

[0139] Furthermore, in embodiments 1 to 3 described above, the entire substrate 10 was in contact with the frame 40, but this is not limited to this. Specifically, as shown in the LED lighting fixture 1J and LED lighting device 3J in Figure 19, an opening 40a may be formed in the frame 40J, and a part of the second surface 10b of the substrate 10 may be exposed through the opening 40a of the frame 40J. In this case, instead of bringing the second surface 10b of the substrate 10 into contact with the outer surface of the frame 40J, the first surface 10a of the substrate 10 may be brought into contact with the inner surface of the frame 40J, as shown in the LED lighting fixture 1K and LED lighting device 3K in Figure 20. In other words, the substrate 10 may be placed inside the frame 40J instead of outside. Also, when the substrate 10 is placed inside the frame 40J, a support member 80 to support the substrate 10 may be separately provided, as shown in the LED lighting fixture 1L and LED lighting device 3L in Figure 21. The frame 40J with the opening 40a formed therein can be the one with the configuration shown in Figure 22. The frame 40J shown in Figure 22 has three openings 40a, but is not limited to this. Furthermore, the frame 40J may be composed of two parts separated left and right (in the shorter direction).

[0140] Furthermore, when supporting the substrate 10, the frame 40M may also have a support member 81 for supporting the substrate 10, as shown in the LED lighting fixture 1M and LED lighting device 3M in Figure 23. The support member 81 supports the substrate 10 by pressing down on both ends of the substrate 10 in the short direction from above.

[0141] In this case, as shown in Figure 24, the first clamping piece 32a of the mounting portion 32N of the cover member 30N may be extended to press down on the support member 81.

[0142] Furthermore, in embodiments 1 to 3 described above, the substrate 10 was fixed to the frame 40 by claws 41 provided on the frame 40, but this is not limited to this. For example, as in the LED lighting fixture 1O and LED lighting device 3O shown in Figure 25, the substrate 10 and the frame 40 may be fixed together with adhesive 90. The adhesive 90 is inserted between the substrate 10 and the frame 40.

[0143] Furthermore, in embodiments 1 to 3 described above, the LED lighting device 3 was attached to the fixture body 2 by rotating the LED lighting device 3, but this is not the only method. In other words, the LED lighting device 3 may be attached to the fixture body 2 without rotating it. Specifically, the LED lighting device 3 may be attached to the fixture body 2 by moving the LED lighting device 3 vertically so as to move it parallel to the fixture body 2 installed on the ceiling, and then pushing the LED lighting device 3 vertically into the recess 2a of the fixture body 2 and fitting it into place.

[0144] Furthermore, in embodiments 1 to 3 described above, an SMD type LED element with an LED chip mounted in a package was used as LED20, and the light-emitting module consisting of the substrate 10 and LED20 was an SMD type LED module, but it is not limited to this. For example, the light-emitting module consisting of the substrate 10 and LED20 may be a COB (Chip On Board) type LED module. In this case, LED20 may be an LED chip Using the bare chip itself, multiple LEDs 20 (LED chips) can be arranged linearly on the substrate 10, and the multiple LEDs 20 can be sealed together or individually with a sealing material (for example, a phosphor-containing resin).

[0145] Furthermore, while the above embodiments 1 to 3 used a cover member 30 having both diffusive and light-transmitting properties, the invention is not limited to this. For example, instead of the cover member 30, a light-transmitting cover having only light-transmitting properties may be used. In this case, a transparent cover with such high transmittance that one can see through it may be used as the light-transmitting cover.

[0146] Furthermore, the present invention also includes forms obtained by applying various modifications to each of the above embodiments as conceived by those skilled in the art, as well as forms realized by arbitrarily combining the components and functions of each embodiment without departing from the spirit of the present invention. [Explanation of symbols]

[0147] 1, 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M, 1N, 1O LED lighting fixtures 2. Main body of the device 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, 3M, 3N, 3O LED lighting equipment 10 circuit boards 20 LED 30, 30A, 30B, 30F, 30G, 30H, 30I, 30N, Cover component Mounting parts 32, 32A, 32F, 32G, 32H, 32N 32a 1st clamping piece 32b Second clamping piece 33 Projecting piece Frames 40, 40C, 40D, 40E, 40J, 40M 43, 43C, 43D folded part

Claims

1. A circuit board with LEDs arranged on it, A long frame on which the aforementioned substrate is attached, The system comprises an elongated cover member attached to the frame so as to cover the LED, The frame has a portion to which the substrate is attached and which is formed as a whole in a flat plate shape, The frame has a folded portion formed by folding the tip of the part in the short direction in the thickness direction, The cover member has a mounting portion attached to the short end of the frame and a projection that protrudes outward from the mounting portion in the short direction of the cover member. The mounting portion has a pair of clamping pieces that clamp the ends of the frame in the short direction, The rear portion of the protrusion is formed to be on the same plane as the front clamping piece of the pair of clamping pieces. LED lighting equipment.

2. The folded portion is formed at both ends in the short direction of the portion. The LED lighting device according to claim 1.

3. The folded portion is locked to the mounting portion. The LED lighting device according to claim 1 or 2.

4. The folded portion is sandwiched between the pair of clamping pieces. The LED lighting device according to claim 3.

5. An LED lighting device according to any one of claims 1 to 4, The fixture comprises a fixture body that holds the aforementioned LED lighting device, LED lighting fixtures.

6. The LED lighting device is detachably attached to the fixture body. The LED lighting fixture according to claim 5.

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