LED lighting devices and LED lighting fixtures

Abstract

To provide an LED lighting device etc. which enables a functional component to be arranged at the front side of a frame without deteriorating light distribution characteristics.SOLUTION: An LED lighting device 3 includes: a substrate 10 on which LEDs 20 are disposed; a long frame 40 to which the substrate 10 is attached; and a cover member 30 which is attached to the frame 40 so as to cover the LEDs 20. The frame 40 has: a first main plate part 41 extending along a longitudinal direction of the frame 40; a pair of second main plate parts 42 located at both sides of the first main plate part 41 in a shorter side direction of the frame 40 and extending along the longitudinal direction of the frame 40. When a direction at the side where the substrate 10 is disposed in the frame 40 with respect to the frame 40 is referred to as a first direction and a direction opposite to the first direction is referred to as a second direction, the pair of second main plate parts 41 are located at the second direction side relative to the first main plate part 41.SELECTED DRAWING: Figure 3

Description

Technical Field

[0006] , , , ,

[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. That is, 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. In the recess of this frame, a power supply device or functional components are arranged as a function expansion module such as a sensor unit.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

[0007] 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 arrange functional components on the front side of the frame without degrading the light distribution characteristics. [Means for solving the problem]

[0008] 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 a cover member attached to the frame so as to cover the LEDs, wherein the frame has a first main plate portion extending along the longitudinal direction of the frame, and a pair of second main plate portions located on both sides of the first main plate portion in the short direction of the frame and extending along the longitudinal direction of the frame, and if the direction on the side of the frame on which the substrate is arranged is defined as the first direction with respect to the frame, and the direction opposite to the first direction is defined as the second direction, then the pair of second main plate portions are located on the second direction side of the first main plate portion.

[0009] 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]

[0010] Functional components such as sensor units can be positioned on the front side (first direction side) of the frame without degrading the light distribution characteristics. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is a perspective view of an LED lighting fixture according to Embodiment 1. [Figure 2] Figure 2 is an exploded perspective view of the LED lighting fixture according to Embodiment 1. [Figure 3] Figure 3 is a cross-sectional view of an LED lighting fixture according to Embodiment 1. [Figure 4] Figure 4 is a perspective view of the LED lighting device according to Embodiment 1, as seen from the cover member side. [Figure 5] Figure 5 is a perspective view of the LED lighting device according to Embodiment 1, as seen from the rear. [Figure 6] Figure 6 is a cross-sectional perspective view of the LED lighting device according to Embodiment 1. [Figure 7] Figure 7 is an exploded perspective view of the LED lighting device according to Embodiment 1. [Figure 8] Figure 8 is a top view of the LED lighting device according to Embodiment 1 with the cover member removed. [Figure 9] Figure 9 is a cross-sectional view of the LED lighting fixture according to Embodiment 1 when it is cut to allow mounting screws for fixing functional components to pass through. [Figure 10] Figure 10 is a cross-sectional view of an LED lighting fixture according to a modified example 1 of Embodiment 1. [Figure 11] Figure 11 is a cross-sectional view of the LED lighting fixture according to Embodiment 1 when it has been cut so that a mounting screw for fixing the power supply unit passes through it. [Figure 12] Figure 12 is a cross-sectional view of the LED lighting fixture according to Embodiment 1 when it is cut so that a mounting screw for fixing the elastic retaining member passes through it. [Figure 13] Figure 13 is a cross-sectional view of an LED lighting fixture according to a modified example 2 of Embodiment 1. [Figure 14] Figure 14 is a cross-sectional view of an LED lighting fixture according to a modified example 3 of Embodiment 1. [Figure 15]FIG. 15 is a diagram for explaining an attachment method when attaching an LED lighting device to an appliance body in the LED lighting fixture according to Embodiment 1. [Figure 16] FIG. 16 is a cross-sectional view of the LED lighting fixture according to Embodiment 2. [Figure 17] FIG. 17 is a cross-sectional view of the LED lighting fixture according to Modification 1 of Embodiment 2. [Figure 18] FIG. 17 is a cross-sectional view of the LED lighting fixture according to Modification 2 of Embodiment 2. [Figure 19] FIG. 19 is a cross-sectional view of the LED lighting fixture according to Embodiment 3. [Figure 20] FIG. 20 is a cross-sectional view of the LED lighting fixture according to a modification of Embodiment 3. [Figure 21] FIG. 21 is a cross-sectional view of the LED lighting fixture according to Embodiment 4. [Figure 22] FIG. 22 is a cross-sectional view of the LED lighting fixture according to Modification 1 of Embodiment 4. [Figure 23] FIG. 23 is a cross-sectional view of the LED lighting fixture according to Modification 2 of Embodiment 4. [Figure 24] FIG. 24 is a cross-sectional view of the LED lighting fixture according to Embodiment 5. [Figure 25] FIG. 25 is a cross-sectional view of the LED lighting fixture according to a modification of Embodiment 5. [Figure 26] FIG. 26 is a cross-sectional view of the LED lighting fixture according to Embodiment 6. [Figure 27] FIG. 27 is a cross-sectional view of the LED lighting fixture according to Modification 1 of Embodiment 6. [Figure 28] FIG. 28 is a cross-sectional view of the LED lighting fixture according to Modification 2 of Embodiment 6. [Figure 29] FIG. 29 is a cross-sectional view of the LED lighting fixture according to Embodiment 7. [Figure 30] FIG. 30 is a cross-sectional view of the LED lighting fixture according to Embodiment 8. [Figure 31] FIG. 31 is a cross-sectional view of the LED lighting fixture according to Modification 1 of Embodiment 8. [Figure 32] Figure 32 is a cross-sectional view of an LED lighting fixture according to a modified example 2 of Embodiment 8. [Figure 33] Figure 33 is a cross-sectional view of an LED lighting fixture according to Modification 1. [Figure 34] Figure 34 is a cross-sectional view of an LED lighting fixture according to modified example 2. [Figure 35] Figure 35 is a cross-sectional view of an LED lighting fixture according to Modification 3. [Figure 36] Figure 36 is a perspective view of the frame used in the LED lighting fixture according to the modified examples 1 to 3. [Figure 37] Figure 37 is a cross-sectional view of an LED lighting fixture according to Modification 4. [Figure 38] Figure 38 is a cross-sectional view of an LED lighting fixture according to Modification 5. [Figure 39] Figure 39 is a cross-sectional view of an LED lighting fixture according to modified example 6. [Figure 40] Figure 40 is a cross-sectional view of an LED lighting fixture according to modified example 7. [Figure 41] Figure 41 is a cross-sectional view of an LED lighting fixture according to modified example 8. [Figure 42] Figure 42 is a cross-sectional view of an LED lighting fixture according to modified example 9. [Figure 43] Figure 43 is a cross-sectional view of an LED lighting fixture according to modified example 10. [Modes for carrying out the invention]

[0012] The embodiments of the present invention will be described below with reference to the drawings. The embodiments described below are all specific examples of the present invention. Therefore, the numerical values, components, arrangement and connection configurations of components, as well as the processes and their sequences shown in the following embodiments, are examples only and are not intended to limit the present invention. Accordingly, any components in the following embodiments that are not described in the independent claims representing the highest-level concept of the present invention will be described as optional components.

[0013] 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.

[0014] (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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] Next, the detailed structure of the LED lighting device 3 will be described using Figures 4 to 8, 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. Figure 8 is a top view of the LED lighting device 3 with the cover member 30 removed.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] The metal wiring formed on the substrate 10 is electrically connected to the power supply unit 4. In this case, as shown in Figure 3, electrodes or connector terminals formed on the substrate 10 are connected to the power supply unit 4 by conductive wires 83. The conductive wires 83 that electrically connect the substrate 10 and the power supply unit 4 are inserted through through holes provided in the frame 40.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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. Therefore, the cover member 30 covers the first main plate portion 41 and the pair of second main plate portions 42 of the frame 40. The cover member 30 is formed in an elongated shape in the Y-axis direction, similar to the substrate 10 and the frame 40.

[0038] 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.

[0039] 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.

[0040] As shown in Figure 7, the cover body 31 is elongated in the Y-axis direction and formed in a trough shape. The cover body 31 is, for example, a flattened, substantially semi-cylindrical shape. Therefore, the cover body 31 has an elongated rectangular open end face that extends in the Y-axis direction. Furthermore, when cut along the X-axis direction, the cross-sectional shape of the cover body 31 has a curved shape that is substantially curved in an arc.

[0041] As shown in Figures 3 and 6, the cover body 31 includes protruding portions 31a that project outward in the width direction from the mounting portion 32. The protruding portions 31a are formed at both ends of the cover body 31 in the short direction (width direction). Each protruding portion 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 protruding portion 31a. In this case, for example, the shape of the XZ cross section of the protruding portion 31a may be V-shaped, and the ceiling-side portion of the protruding portion 31a may be formed to be on the same plane as the extension piece 33 via the mounting portion 32.

[0042] The mounting portion 32 is the part that is attached to the frame 40. The mounting portion 32 is also an extended portion that extends from the cover body portion 31 toward the frame 40.

[0043] A pair of mounting portions 32 are provided on the cover body portion 31. Specifically, the 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.

[0044] As shown in Figures 3, 6, and 7, the pair of mounting portions 32 are provided facing each other in the X-axis direction. In this embodiment, the protrusion amount (length in the Z-axis direction) of the pair of mounting portions 32 is the same. Furthermore, the protrusion amount of the pair of mounting portions 32 is constant along the entire length of the cover member 30 in the longitudinal direction.

[0045] As shown in Figures 3 and 6, each of the pair of mounting portions 32 is provided with an extension piece 33. In other words, the cover member 30 has a pair of extension pieces 33. Each extension piece 33 is erected from the mounting portion 32 on the inside of the mounting portion 32. The pair of extension pieces 33 are formed to protrude in the X-axis direction and extend in the X-axis direction. A space exists between the pair of extension pieces 33 and the second main plate portion 42 of the frame 40.

[0046] In this embodiment, the lengths of the pair of extension pieces 33 in the X-axis direction are the same. As shown in Figure 7, each of the pair of extension pieces 33 is formed in an elongated shape along the Y-axis direction. The lengths of the pair of extension pieces 33 in the Y-axis direction are also the same. For example, the pair of extension pieces 33 are the same shape and the same length, but are not limited to this. Furthermore, the pair of extension pieces 33 are provided at the same height position in the Z-axis direction.

[0047] Each of the pair of extension pieces 33 extends to each of the pair of upright plate portions 44 erected on the second main plate portion 42 of the frame 40. That is, one of the pair of extension pieces 33 extends to one of the pair of upright plate portions 44, and the other of the pair of extension pieces 33 extends to the other of the pair of upright plate portions 44. Each extension piece 33 is in contact with the tip of the upright plate portion 44 of the frame 40 and extends beyond the upright plate portion 44.

[0048] Each of the pair of extension pieces 33 extends from the mounting portion 32 along the shorter direction (X-axis direction) of the cover member 30. Specifically, each extension piece 33 extends in a direction parallel to the first surface 10a and the second surface 10b of the substrate 10. As an example, the extension piece 33 is a plate-shaped piece with a constant thickness.

[0049] The pair of extension pieces 33 function as stoppers that hold down the frame 40. In other words, the pair of extension pieces 33 prevent the frame 40 from shifting toward the light-emitting side (floor side) of the LED 20. In this embodiment, the pair of extension pieces 33 prevent the frame 40 from shifting toward the floor by pressing down the vertical plate portion 44 of the frame 40 from the floor side (light-emitting side of the LED 20) toward the ceiling side.

[0050] A locking piece 34 is connected to each of the pair of mounting portions 32. In this embodiment, the locking piece 34 is provided at the tip of each mounting portion 32. Specifically, the locking piece 34 is erected inward from the tip of the mounting portion 32.

[0051] The locking piece 34 extends from the mounting portion 32 along the shorter direction (X-axis direction) of the cover member 30, similar to the extension piece 33. Specifically, the locking piece 34 extends in a direction parallel to the first surface 10a and the second surface 10b of the substrate 10. The locking piece 34 also extends to the second main plate portion 42 of the frame 40. Specifically, the locking piece 34 is in contact with the ceiling-side surface of the second main plate portion 42 of the frame 40. As an example, the locking piece 34 is a plate-shaped piece formed with a constant thickness. In this embodiment, the locking piece 34 has the same shape and length as the extension piece 33, but is not limited to this.

[0052] The extension piece 33 and locking piece 34 provided on each of the pair of mounting parts 32 form a clamping structure that sandwiches the upright plate part 44 of the frame 40. In other words, the upright plate part 44 of the frame 40 is held in place by the extension piece 33 and the locking piece 34. The upright plate part 44 is sandwiched between the extension piece 33 and the locking piece 34, which are arranged in parallel, in an upright position.

[0053] The cover member 30 is attached to the vertical plate portion 44 of the frame 40. In this embodiment, each of the pair of mounting portions 32 on the cover member 30 is attached to each of the pair of vertical plate portions 44 of the frame 40. Specifically, the vertical plate portion 44 of the frame 40 is sandwiched between the extending piece 33 and the locking piece 34 provided on the mounting portion 32 of the cover member 30, thereby locking and fixing the cover member 30 and the frame 40 together.

[0054] In this embodiment, the mounting portion 32 of the cover member 30 is located on the outside of the vertical plate portion 44 of the frame 40. Therefore, the pair of mounting portions 32 of the cover member 30 are fixed and held to the frame 40 by embracing the frame 40. This makes it difficult for the cover member 30 to come off the frame 40 and improves the strength of the LED lighting device 3.

[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. Alternatively, 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 is subjected to a diffusion process, it may contain an additional light-diffusing material to further enhance its light-diffusing properties.

[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. Specifically, not only the cover body portion 31 and the mounting portion 32, but also the extension piece 33 and the locking piece 34, the entire cover member 30 is formed integrally.

[0058] In this embodiment, the shape of the cover member 30 is symmetrical in the XZ cross-section. That is, the pair of mounting portions 32 have the same shape. The pair of extension pieces 33 also have the same shape, and the pair of locking pieces 34 also have the same shape. However, the shape of the cover member 30 does not have to be symmetrical.

[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] As an example, the frame 40 is made of sheet metal. The frame 40 is formed into a predetermined shape by roll forming or press forming on a single sheet of metal (metal plate), for example, SPCC (Steel Plate Cold Commercial). As shown in Figure 3, in this embodiment, the frame 40 is formed such that the shape of the XZ cross section is that of a pair of ladles placed back-to-back and joined at the handle portion. Also, the frame 40 is formed in an elongated shape in the Y axis direction, similar to the base plate 10 and the main body 2 of the device. The thickness of the metal plate 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 plate constituting the frame 40 is preferably 1 mm or less. Specifically, the thickness of the metal plate constituting the frame 40 was set to 0.5 mm. In this embodiment, the shape of the frame 40 is symmetrical in the XZ cross section, but is not limited to this.

[0061] As shown in Figures 3 to 7, the frame 40 has a plate-shaped first main plate portion 41, a pair of plate-shaped second main plate portions 42, a pair of plate-shaped connecting plate portions 43, and a pair of plate-shaped upright plate portions 44. In this embodiment, the first main plate portion 41, the second main plate portions 42, the connecting plate portions 43, and the upright plate portions 44 are all flat plates. Also, as shown in Figure 7, the first main plate portion 41, the pair of second main plate portions 42, the pair of connecting plate portions 43, and the pair of upright plate portions 44 are all elongated and extend along the longitudinal direction (Y-axis direction) of the frame 40.

[0062] As shown in Figure 3, the first main plate portion 41 is located in the center of the frame 40 in the short direction (X-axis direction). The pair of second main plate portions 42 are located on both sides of the first main plate portion 41 in the short direction (X-axis direction) of the frame 40. In other words, one of the pair of second main plate portions 42 is located on one side of the first main plate portion 41 in the X-axis direction, and the other of the pair of second main plate portions 42 is located on the other side of the first main plate portion 41 in the X-axis direction.

[0063] The length of the first main plate section 41 in the shorter direction is longer than the length of the second main plate section 42 in the shorter direction. In other words, the width of the first main plate section 41 is greater than the width of the second main plate section 42.

[0064] The width of the first main board portion 41 is preferably approximately the same as or greater than the width of the substrate 10 on which the LEDs 20 are arranged. In this embodiment, the width of the first main board portion 41 is approximately the same as the combined width of the pair of second main board portions 42. Therefore, since the width of the frame 40 is the sum of the width of the first main board portion 41 and the widths of each of the pair of second main board portions 42, the width of the first main board portion 41 is approximately half the width of the frame 40. The widths of the pair of second main board portions 42 are, but not limited to, the same. In other words, the width of one second main board portion 42 may be greater than the width of the other second main board portion 42.

[0065] A substrate 10 on which LEDs 20 are arranged is placed on the first main board portion 41. Specifically, the substrate 10 is placed on the floor-side surface of the first main board portion 41. In this embodiment, the second surface 10b of the substrate 10 and the floor-side surface of the first main board portion 41 are in surface contact.

[0066] As shown in Figure 7, the first main plate portion 41 has a claw portion 41a formed by cutting and bending a part of the sheet metal frame 40. The substrate 10 placed on the first main plate portion 41 is fixed to the first main plate portion 41 by being locked into this claw portion 41a.

[0067] The first main board section 41 and the second main board section 42 are positioned at different heights. Specifically, if we consider the frame 40 as the reference point, and define the direction on the frame 40 where the substrate 10 is placed as the front (first direction), and the direction opposite to the front as the rear (second direction), then the pair of second main board sections 42 are located further rear than the first main board section 41.

[0068] In this embodiment, the forward direction (first direction) is toward the floor, and the backward direction (second direction) is toward the ceiling. Therefore, the pair of second main plate sections 42 are located closer to the ceiling than the first main plate section 41. The pair of main plate sections 42 are located at the same height, but are not limited to this.

[0069] The first main plate section 41 and the pair of second main plate sections 42, which are positioned at different heights, are connected by connecting plate sections 43. In other words, the frame 40 has a pair of connecting plate sections 43 that connect each of the first main plate section 41 and the pair of second main plate sections 42. Each connecting plate section 43 is a connecting member for connecting the first main plate section 41 and the second main plate section 42.

[0070] One end of each connecting plate portion 43 is connected to the X-axis end of the first main plate portion 41. The other end of each connecting plate portion 43 is connected to the X-axis inner end (the end on the first main plate portion 41 side) of the second main plate portion 42.

[0071] Each connecting plate portion 43 is erected on the first main plate portion 41 and the second main plate portion 42. Specifically, in the XZ cross section, the angle between the first main plate portion 41 and the connecting plate portion 43 is 90 degrees, and the angle between the second main plate portion 42 and the connecting plate portion 43 is also 90 degrees. The first main plate portion 41, the second main plate portion 42, and the connecting plate portion 43 can be formed by bending sheet metal at approximately a 90-degree angle. Note that the length of each pair of connecting plate portions 43 is the same in the Y-axis direction.

[0072] A vertical plate portion 44 is connected to each of the pair of second main plate portions 42. Each vertical plate portion 44 is a vertical wall portion that is erected in a wall-like manner on the second main plate portion 42. In this embodiment, each vertical plate portion 44 is connected to the outer end of the second main plate portion 42 in the X-axis direction (the end opposite to the first main plate portion 41 side). Each vertical plate portion 44 protrudes forward (towards the floor) from the outer end of the second main plate portion 42. In other words, the frame 40 has a pair of vertical plate portions 44 that protrude forward (towards the floor) from each end of the pair of second main plate portions 42.

[0073] Each vertical plate portion 44 constitutes a side portion of the frame 40. The vertical plate portion 44 and the second main plate portion 42 can be formed by bending the sheet metal at approximately a 90-degree angle so that the cross-section forms an L-shape.

[0074] As shown in Figure 7, the pair of vertical plates 44 have the same length in the Y-axis direction. As shown in Figure 3, the pair of vertical plates 44 have the same projection amount (length in the Z-axis direction). In this embodiment, the projection amount of each of the pair of vertical plates 44 is constant along the entire length of the frame 40 in the longitudinal direction.

[0075] A cover member 30 is attached to the pair of upright plate sections 44. In this embodiment, a pair of mounting sections 32 of the cover member 30 are attached to the pair of upright plate sections 44. Specifically, as described above, each upright plate section 44 is sandwiched between the extending piece 33 and the locking piece 34 provided on each mounting section 32.

[0076] In this embodiment, as shown in Figure 3, the cover member 30 and the frame 40 are further secured by mounting screws 71. The mounting screws 71 are screwed into the cover member 30 from the outside on the side. In this case, the cover member 30 and the frame 40 may also be secured by crimping the frame 40 instead of using the mounting screws 71.

[0077] In the frame 40 configured in this way, as described above, the first main plate portion 41 and the pair of second main plate portions 42 are positioned at different heights, so a step is formed between each of the first main plate portion 41 and the pair of second main plate portions 42.

[0078] As shown in Figure 3, this step creates recesses 46 on the front side (floor side) of each of the pair of second main plate sections 42. In other words, a pair of recesses 46 are formed in the frame 40. In each recess 46, the second main plate section 42 is at the bottom of the recess 46. Also, each recess 46 is recessed toward the rear side (ceiling side). In this embodiment, the connecting plate section 43 and the upright plate section 44 are erected on the second main plate section 42, and each recess 46 is a spatial area enclosed on three sides by the connecting plate section 43, the second main plate section 42, and the upright plate section 44. As an example, the cross-sectional shape of each recess 46 is rectangular.

[0079] As shown in Figure 8, each of the pair of recesses 46 extends linearly along the longitudinal direction (Y-axis direction) of the frame 40. Therefore, each recess 46 is a linear groove. Packing is placed at each of the longitudinal ends of each recess 46.

[0080] A component constituting the LED lighting device 3 is placed in at least one of the pair of recesses 46. As shown in Figures 3 and 8, a functional component 60 related to the lighting of the LED 20 is placed in one of the pair of recesses 46 as a component constituting the LED lighting device 3. In other words, the functional component 60 is housed in the recess 46. As shown in Figure 8, the functional component 60 is located at the longitudinal end of the frame 40, but is not limited to this.

[0081] Specifically, the functional component 60 is a functional expansion module. The functional expansion module is, for example, a sensor unit equipped with various sensors such as a motion sensor and a brightness sensor, a wireless module having an antenna and control circuit for receiving wireless signals, 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 dimming and changing 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. When an emergency light source is used as the second light source, the cover and / or cover member 30 covering the second light source may be made of a flame-retardant material such as glass. The functional component 60 may also be part of the power supply device 4.

[0082] The functional component 60 comprises a substrate 61 and one or more electronic components 62 arranged on the substrate 61. The substrate 61 is, for example, a circuit board made of a resin substrate or the like. The electronic components 62 are, for example, various sensors or light-receiving elements.

[0083] The substrate 61 of the functional component 60 is fixed to the second main plate portion 42 of the frame 40. As shown in Figures 8 and 9, in this embodiment, the substrate 61 is fixed to the second main plate portion 42 by mounting screws 72. Figure 9 is a cross-sectional view when the LED lighting fixture 1 is cut along the XZ cross-section so that the mounting screws 72 pass through it.

[0084] In this way, by positioning the functional component 60 in the recess 46, even if the substrate 61 of the functional component 60 is fixed to the frame 40 with mounting screws 72, the screw heads of the mounting screws 72 are housed in the recess 46, thus preventing the screw heads of the mounting screws 72 from protruding forward of the substrate 10 on which the LED 20 is located. This prevents the screw heads of the mounting screws 72 from protruding forward of the substrate 10 and blocking the light from the LED 20. Therefore, deterioration of the light distribution characteristics of the LED lighting device 3 can be suppressed.

[0085] In this embodiment, as shown in Figure 3, the cover member 30 and the frame 40 are fixed together by mounting screws 71 that are screwed in from the outside of the side of the cover member 30. In this case, the mounting screws 71 are screwed in from the outer surface of the mounting portion 32 of the cover member 30, fixing the mounting portion 32 of the cover member 30 to the vertical plate portion 44 of the frame 40. As a result, the screw heads of the mounting screws 71 are housed in the recesses 46. Therefore, it is possible to prevent the light from being blocked by the mounting screws 71.

[0086] Furthermore, as shown in Figure 8, the functional component 60 and the power supply unit 4 are electrically connected by a conductive wire 81. The conductive wire 81 is one of the components that make up the LED lighting device 3. The conductive wire 81 is placed in the recess 46 together with the functional component 60. In other words, the conductive wire 81 is housed in the recess 46.

[0087] One end of the conductive wire 81 is connected to an electrode or connector terminal on the substrate 61 of the functional component 60, and the other end of the conductive wire 81 is connected to an electrode or connector terminal on the circuit board 4a of the power supply unit 4. In this embodiment, the conductive wire 81 drawn from the substrate 61 of the functional component 60 passes through the recess 46 and is inserted into a through hole provided in the second main plate portion 42 or the connecting plate portion 43, and is connected to an electrode or connector terminal on the circuit board 4a of the power supply unit 4.

[0088] In this way, by housing the conductive wire 81 in the recess 46, the conductive wire 81 can be easily routed. In other words, wiring of the conductive wire 81 can be easily performed. Furthermore, by housing the conductive wire 81 in the recess 46, it is possible to suppress the conductive wire 81 from getting caught between the LED lighting device 3 and the fixture body 2 when the LED lighting device 3 is attached to the fixture body 2.

[0089] In Figure 9, the substrate 61 is fixed to the second main plate portion 42 by screwing mounting screws 72 into the substrate 61 from the front side of the substrate 10 which is placed on the second main plate portion 42 of the recess 46. However, as shown in Figure 10, the substrate 61 may also be fixed to the second main plate portion 42 by screwing mounting screws 72 into the substrate 61 from the rear side of the second main plate portion 42. In this case, the screw shaft of the mounting screw 72 is housed in the recess 46, so it is possible to avoid the screw shaft of the mounting screw 72 protruding in front of the substrate 10. This prevents the screw shaft of the mounting screw 72 from protruding in front of the substrate 10 and blocking the light of the LED 20. Alternatively, the substrate 61 may be fixed to the second main plate portion 42 by a mounting structure such as crimping instead of mounting screws 72. In this case as well, the mounting structure is housed in the recess 46, so it is possible to prevent the light of the LED 20 from being blocked by the mounting structure.

[0090] Furthermore, in this embodiment, as shown in Figure 11, the circuit case 4c of the power supply unit 4 is fixed to the second main plate portion 42 of the frame 40 by mounting screws 73. In this case, the screw shafts of the mounting screws 73 are housed in the recesses 46, so that the screw shafts of the mounting screws 73 do not protrude forward of the substrate 10. This prevents the screw shafts of the mounting screws 73 from protruding forward of the substrate 10 and blocking the light from the LED 20.

[0091] Furthermore, in this embodiment, as shown in Figure 12, a retaining bracket 6c for holding the elastic retaining member 6 to the frame 40 is fixed to the second main plate portion 42 of the frame 40 by a mounting screw 74. In this case as well, since the screw shaft of the mounting screw 74 is housed in the recess 46, it is possible to prevent the screw shaft of the mounting screw 74 from protruding forward of the substrate 10. This prevents the screw shaft of the mounting screw 74 from protruding forward of the substrate 10 and blocking the light from the LED 20.

[0092] Furthermore, as shown in Figure 13, a terminal block may be placed in the recess 46 as a functional component 60A. The terminal block is, for example, a dimming terminal block that receives dimming signals from a dimmer. Alternatively, a power terminal block 8 (see Figure 2) may be placed in the recess 46 as a functional component 60A. By housing the terminal block in the recess 46 in this way, it becomes unnecessary to place the terminal block on the rear side (ceiling side) of the frame 40, thus freeing up space on the rear side of the frame 40. Conductive wires are also connected to the functional component 60A, and it is preferable to house these conductive wires in the recess 46 as well.

[0093] When functional component 60 and functional component 60A are placed in a pair of recesses 46, functional component 60 and functional component 60A may be placed in the same recess 46, or they may be placed in separate recesses 46. In other words, functional component 60 may be placed in one of the pair of recesses 46, and functional component 60A may be placed in the other of the pair of recesses 46.

[0094] Furthermore, as shown in Figure 14, when the two substrates 10 are electrically connected by a conductive wire 82 such as a connector wire, this conductive wire 82 may be placed in the recess 46. This prevents the conductive wire 82 from being placed on top of the substrate 10, thus suppressing the blocking of light from the LED 20 by the conductive wire 82. Therefore, deterioration of the light distribution characteristics of the LED lighting device 3 can be suppressed. The conductive wire 82, which is a connector wire, is connected to a connector terminal mounted on the substrate 10.

[0095] In this way, by providing a recess 46 in the frame 40, functional components 60 and 60A can be housed in the recess 46, or conductive wires 81 connected to functional components 60 and 60A or conductive wires 82 connected to the substrate 10 can be housed in the recess 46.

[0096] In addition, the functional components 60 and 60A and the conductive wires 81 and 82 may be placed in only one of the pair of recesses 46. However, in this embodiment, since the frame 40 has a pair of recesses 46, the functional components 60 and 60A and the conductive wires 81 and 82 may be placed using both of the pair of recesses 46. In other words, the components constituting the LED lighting device 3 may be placed in each of the pair of recesses 46.

[0097] As shown in Figures 3 and 9, the conductive wire 83 that electrically connects the substrate 10 and the power supply unit 4 is located in the recess 46. In this embodiment, the conductive wire 83 and the conductive wire 81 are located in separate recesses 46, but this is not limited to this configuration.

[0098] The conductive wire 83 is inserted through a through hole provided in the second main plate portion 42 or the connecting plate portion 43. For example, the conductive wire 83, which is a connector wire, is inserted through a through hole provided in the second main plate portion 42 and connected to the connector terminal of the circuit board 10 and the connector terminal of the circuit board 4a of the power supply unit 4. In this case, the conductive wire 83, which is a connector wire, can be inserted into the connector terminal of the circuit board 4a from the circuit board 10 side.

[0099] Furthermore, the frame 40 has not only a recess 46 but also a recess 47. The recess 47 is formed on the rear side (ceiling side) of the first main plate portion 41. Specifically, the first main plate portion 41 is the bottom of the recess 47, and the recess 47 is recessed toward the front side (floor side). In this embodiment, a pair of connecting plate portions 43 are erected on the first main plate portion 41, and the recess 47 is a spatial area enclosed on three sides by the first main plate portion 41 and the pair of connecting plate portions 43. As an example, the cross-sectional shape of the recess 47 is rectangular.

[0100] The power supply unit 4 is housed in the recess 47 of the frame 40. The recess 47 is located in the recess 2a of the fixture body 2. Therefore, the power supply unit 4 is housed in the recess 47 of the frame 40 and also in the recess 2a of the fixture body 2. In this embodiment, the power supply unit 4 is arranged across the rear side (ceiling side) of the first main plate portion 41 and the rear side (ceiling side) of one of the pair of second main plate portions 42.

[0101] In other words, as shown in Figure 3, a space exists in the recess 2a of the fixture body 2, on the rear side (ceiling side) of the second main plate portion 42. The power supply unit 4 is positioned utilizing this space formed on the rear side of the second main plate portion 42. The elastic retaining member 6 is also positioned utilizing this space formed on the rear side of the second main plate portion 42.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] As shown in Figure 3, the hook fitting 5 is positioned 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 fixed to the frame 40. In this embodiment, the hook fitting 5 is fixed to the connecting plate portion 43 by mounting screws 75 and extends outward from the vertical plate portion 44 of 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.

[0108] The elastic retaining member 6 is located on the rear side (ceiling side) of the second main plate portion 42 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 frame 40 on the opposite side from the hook fitting 5 in the width direction. In this embodiment, it is fixed to the second main plate portion 42 by a fixing member such as a screw. Specifically, as described above, the elastic retaining member 6 is fixed to a retaining fitting 6c which is fixed to the second main plate portion 42 of the frame 40 by a mounting screw 74. 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.

[0109] 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.

[0110] Here, the method for attaching the LED lighting device 3 to the fixture body 2 will be explained using Figure 15. Figure 15 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.

[0111] When attaching the LED lighting device 3 to the fixture body 2 installed on the ceiling 100, first, as shown in Figure 15(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.

[0112] In this configuration, the elastic retaining member 6 is positioned on the rear portion of the second main plate portion 42, which is located behind the first main plate portion 41. 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, making it easier to pull out a part of the elastic retaining member 6 (specifically, the end of the kick spring).

[0113] Next, as shown in Figure 15(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. Note that when rotating the LED lighting device 3, the axis of rotation is parallel to the longitudinal direction (Y-axis direction) of the LED lighting device 3.

[0114] 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 15(c). This allows the LED lighting device 3 to be attached to the fixture body 2.

[0115] Furthermore, when the LED lighting device 3 is rotated and attached to the fixture body 2 as in this embodiment, it is preferable that the power supply unit 4 be positioned closer to the axis of rotation. By positioning the heavy power supply unit 4 closer to the axis of rotation in this way, the LED lighting device 3 can be rotated with less force. Therefore, the installation work of the LED lighting device 3 to the fixture body 2 can be easily performed.

[0116] As described above, in the LED lighting device 3 and LED lighting fixture 1 according to this embodiment, the height positions of the first main plate portion 41 and the pair of second main plate portions 42 in the frame 40 are different. Specifically, the pair of second main plate portions 42 are located further back than the first main plate portion 41. As a result, due to the difference in height between the first main plate portion 41 and the pair of second main plate portions 42, a pair of recesses 46 are formed on the front side of the second main plate portions 42 in the frame 40.

[0117] This configuration allows functional components 60 and 60A to be placed in one or both of the pair of recesses 46 of the frame 40. This allows functional components 60 and 60A to be placed on the front side of the frame 40 without degrading the light distribution characteristics. Furthermore, as described above, components other than functional components 60 and 60A that constitute the LED lighting device 3 can also be placed in one or both of the pair of recesses 46 of the frame 40.

[0118] When a functional component 60 or 60A is placed in the recess 46, the width of one recess 46 (the length of the second main plate portion 42 in the short direction) should be at least about 10 mm. Also, when a conductive wire is placed in the recess 46, the width of one recess 46 (the length of the second main plate portion 42 in the short direction) should be at least about 2 mm.

[0119] Furthermore, in the LED lighting device 3 according to this embodiment, each of the cover member 30 and the frame 40 has a left-right symmetrical shape when viewed from the longitudinal direction. In other words, each of the cover member 30 and the frame 40 has a left-right symmetrical shape in the XZ cross-section.

[0120] This configuration eliminates the left-right orientation of the cover member 30 relative to the frame 40, allowing the cover member 30 to be easily attached to the frame 40. Furthermore, by making both the cover member 30 and the frame 40 symmetrical, the strength can be improved.

[0121] (Embodiment 2) Next, Embodiment 2 will be described using Figure 16. Figure 16 is a cross-sectional view of the LED lighting fixture 1A and LED lighting device 3A according to Embodiment 2.

[0122] 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 method of electrical connection between the metal wiring formed on the substrate 10 and the power supply device 4 is different.

[0123] In the first embodiment described above, the metal wiring formed on the substrate 10 and the power supply unit 4 were electrically connected by a conductive wire 83. However, in this embodiment, as shown in Figure 16, the metal wiring formed on the substrate 10 and the power supply unit 4 are electrically connected without using a conductive wire 83.

[0124] Specifically, in this embodiment, as shown in Figure 16, a connector terminal 4d is mounted on the circuit board 4a of the power supply unit 4, and this connector terminal 4d protrudes into one of the two recesses 46. Specifically, the connector terminal 4d protrudes into the recess 46 by being inserted through a through hole 42a formed in the second main plate portion 42. In other words, the connector terminal 4d is exposed to the recess 46.

[0125] The connector terminal 4d exposed in the recess 46 and the connector terminal 10c of the circuit board 10 are electrically connected by a connecting member 84. The connecting member 84 is one of the components that make up the LED lighting device 3A, and is composed of, for example, a conductive plate that electrically connects the connector terminal 4d of the power supply device 4 and the connector terminal 10c of the circuit board 10, and a resin holder that holds the conductive plate.

[0126] In this embodiment, the connector terminal 4d of the power supply unit 4 and the connecting member 84 are located in a different recess 46 from the one in which the functional component 60 is placed. Thus, in this embodiment, the frame 40 has a pair of recesses 46 formed corresponding to each of the pair of second main plate portions 42, so the functional component 60, the connector terminal 4d, and the connecting member 84 can be placed separately in each of the pair of recesses 46.

[0127] As described above, in the LED lighting fixture 1A and LED lighting device 3A according to this embodiment, the pair of second main plate portions 42 of the frame 40 are located further back than the first main plate portion 41, and the frame 40 has a pair of recesses 46 formed therein.

[0128] This allows functional components 60, etc., to be placed in one or both of the pair of recesses 46 of the frame 40. Therefore, functional components 60, etc., can be placed on the front side of the frame 40 without degrading the light distribution characteristics.

[0129] Furthermore, in the LED lighting fixture 1A and LED lighting device 3A of this embodiment, the connector terminal 4d of the power supply unit 4 is inserted through a through hole 42a formed in the second main plate portion 42 and exposed in the recess 46. The connector terminal 4d of the power supply unit 4 and the connector terminal 10c of the circuit board 10 are electrically connected by a connecting member 84.

[0130] This allows the power supply unit 4 and the metal wiring of the circuit board 10 to be easily connected from the front side (floor side) of the frame 40 through the through hole 42a of the frame 40. Alternatively, instead of the connecting member 84, the connector terminal 4d protruding from the recess 46 and the connector terminal 10c may be connected by a conductive wire.

[0131] Furthermore, as shown in Figure 17, the LED lighting fixture 1Aα and LED lighting device 3Aα, the power supply unit 4 and the metal wiring of the circuit board 10 may be electrically connected without passing the connector terminal 4d of the power supply unit 4 through the second main plate portion 42. In this case, as shown in Figure 17, the power supply unit 4 and the metal wiring of the circuit board 10 can be electrically connected by directly connecting the connector terminal 4d of the power supply unit 4 and the metal wiring of the circuit board 10 with conductive pins 85 that pass through the second main plate portion 42 of the frame 40. Also, when using conductive pins 85, the circuit board 4a of the power supply unit 4 may be inverted vertically, as shown in Figure 18.

[0132] (Embodiment 3) Next, Embodiment 2 will be described using Figure 19. Figure 19 is a cross-sectional view of the LED lighting fixture 1B and LED lighting device 3B according to Embodiment 3.

[0133] 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 method of electrical connection between the power supply device 4 and the functional component 60 is different.

[0134] In the first embodiment described above, the power supply unit 4 and the functional component 60 were electrically connected by a conductive wire 81. However, in this embodiment, as shown in Figure 19, the power supply unit 4 and the functional component 60 are electrically connected without using a conductive wire 81.

[0135] Specifically, in this embodiment, as shown in Figure 19, a connector terminal 4d is mounted on the circuit board 4a of the power supply unit 4 located on the rear side of the frame 40, and this connector terminal 4d has a structure that protrudes into the recess 46 where the functional component 60 is located. In this case, a part of the connector terminal 4d is inserted, for example, through a through hole provided in the connecting plate portion 43 of the frame 40, so that it protrudes into the recess 46. In other words, the connector terminal 4d is exposed to the recess 46.

[0136] Then, the connector terminal 4d exposed in the recess 46 and the electrode or connector terminal of the substrate 61 of the functional component 60 are electrically connected by a conductive wire (not shown), such as a connector wire.

[0137] In this embodiment, the power supply unit 4 and the functional component 60 are arranged adjacent to each other via a connecting plate portion 43.

[0138] As described above, in the LED lighting fixture 1B and LED lighting device 3B according to this embodiment, the pair of second main plate portions 42 of the frame 40 are located further back than the first main plate portion 41, and the frame 40 has a pair of recesses 46 formed therein.

[0139] This allows functional components 60, etc., to be placed in one or both of the pair of recesses 46 of the frame 40. Therefore, functional components 60, etc., can be placed on the front side of the frame 40 without degrading the light distribution characteristics.

[0140] In this embodiment, the connector terminal 4d protrudes into the recess 46, but this is not limited to this configuration. In other words, the connector terminal 4d may not be inserted through the through hole provided in the connecting plate portion 43, and only the end face of the connector terminal 4d may be exposed to the recess 46 through the through hole.

[0141] Furthermore, in Figure 19, only the connector terminal 4d mounted on the circuit board 4a protrudes into the recess 46, but as shown in Figure 20, not only the connector terminal 4d but also the circuit board 4a may protrude into the recess 46.

[0142] (Embodiment 4) Next, Embodiment 4 will be described using Figure 21. Figure 21 is a cross-sectional view of the LED lighting fixture 1C according to Embodiment 4.

[0143] The LED lighting fixture 1C and LED lighting device 3C according to this embodiment differ from the LED lighting fixture 1 and LED lighting device 3 according to Embodiment 1 in the configuration of the cover member 30C.

[0144] Specifically, as shown in Figure 21, in this embodiment, the cover member 30C has a width (length in the X-axis direction) of one of the pair of extension pieces 33C that is greater than the width of the pair of extension pieces 33 in the first embodiment. In this embodiment, each of the pair of extension pieces 33C covers the entirety of each of the pair of second main plate portions 42 of the frame 40. Therefore, one of the pair of extension pieces 33C covers the functional component 60 located in one of the pair of recesses 46.

[0145] Furthermore, the pair of extension pieces 33C in this embodiment are made of a different material than the pair of mounting parts 32 in Embodiment 1. However, the cover body 31, mounting parts 32, and locking pieces 34 are made of the same material as the cover member 30C in this embodiment and the cover member 30 in Embodiment 1. Therefore, the cover member 30C in this embodiment is formed from two types of resin materials: a first resin material that constitutes the cover body 31, mounting parts 32, and locking pieces 34, and a second resin material that constitutes the pair of extension pieces 33C. In this case, the cover member 30C can be formed by two-color molding.

[0146] The first resin material constituting the cover body 31, mounting portion 32, and locking piece 34 is made of the same light-transmitting resin material as the cover member 30 in Embodiment 1 above. The second resin material constituting the pair of extension pieces 33C may be made of a light-transmitting resin material or a non-light-transmitting material. However, when the pair of extension pieces 33C are made of a non-light-transmitting material, for example, a white resin material can be used as the non-light-transmitting material. This allows the light from the LED 20 that reaches the extension pieces 33C to be reflected by the extension pieces 33C. Furthermore, when the functional component 60 is a sensor unit that receives light such as infrared rays, and the pair of extension pieces 33C are made of a non-light-transmitting material, it is preferable to provide through holes in the extension pieces 33C that cover the functional component 60 to allow light to pass through. Even when the pair of extension pieces 33C are made of a light-transmitting resin material, the extension pieces 33C may be made thinner than other parts in order to improve the light-receiving sensitivity of the sensor unit.

[0147] Furthermore, in this embodiment, the cover member 30C has a symmetrical shape, but is not limited to this. For example, the pair of extension pieces 33C may have different lengths in the X-axis direction. In this case, the length in the X-axis direction of the extension piece 33C that covers the functional component 60 may be made longer than the length in the X-axis direction of the extension piece 33 in Embodiment 1, and the length in the X-axis direction of the other extension piece 33C may be made the same as the length in the X-axis direction of the extension piece 33 in Embodiment 1.

[0148] As described above, in the LED lighting fixture 1C and LED lighting device 3C according to this embodiment, the pair of second main plate portions 42 of the frame 40 are located further back than the first main plate portion 41, and the frame 40 has a pair of recesses 46 formed therein.

[0149] This allows functional components 60, etc., to be placed in one or both of the pair of recesses 46 of the frame 40. Therefore, functional components 60, etc., can be placed on the front side of the frame 40 without degrading the light distribution characteristics.

[0150] As shown in Figure 21, in this embodiment, an L-shaped bent portion was formed at the tip of the extension piece 33C covering the functional component 60, but this is not the only possible configuration.

[0151] For example, as shown in Figure 22, the tip of the extended piece 33C that covers the functional component 60 does not need to have a bent portion formed thereon.

[0152] In Figure 22, the cover member 30Cα has a V-shaped cross-section in the XZ region of the protruding portion 31a of the cover body 31, and the ceiling-side portion of the protruding portion 31a is formed to be on the same plane as the extended piece 33C. This eliminates the recess (insect pocket) in the protruding portion 31a where insect carcasses and foreign matter can accumulate.

[0153] Furthermore, in the cover member 30Cα shown in Figure 22, the mounting portion 32C, the extension piece 33C, and the locking piece 34C are made of the same resin material, while the resin material constituting the mounting portion 32C, the extension piece 33C, and the locking piece 34C is different from the resin material constituting the cover body portion 31.

[0154] Furthermore, as shown in Figure 23, the width of the extension piece 33Cβ may be further increased so that the extension piece 33Cβ covering the functional component 60 reaches the substrate 10, and a pressing portion 33Ca that holds the substrate 10 may be formed at the tip of the extension piece 33Cβ, as in the cover member 30Cβ of the LED lighting fixture 1Cβ and LED lighting device 3Cβ. This allows the cover member 30Cβ to hold the substrate 10 (LED module) on which the LEDs 20 are mounted.

[0155] (Embodiment 5) Next, Embodiment 5 will be described using Figure 24. Figure 24 is a cross-sectional view of the LED lighting fixture 1D according to Embodiment 5.

[0156] The LED lighting fixture 1D and LED lighting device 3D according to this embodiment differ from the LED lighting fixture 1 and LED lighting device 3 according to Embodiment 1 in that the mounting position of the mounting screws 71 that fix the cover member 30 and the frame 40 is different.

[0157] In the above embodiment 1, the mounting screws 71 that fix the cover member 30 and the frame 40 were screwed in from the outside of the side of the cover member 30, as shown in Figure 3. Specifically, the mounting screws 71 were screwed in from the outer surface of the mounting portion 32 of the cover member 30, thereby fixing the mounting portion 32 of the cover member 30 and the vertical plate portion 44 of the frame 40 with the mounting screws 71.

[0158] In contrast, in this embodiment, the mounting screws 71 that fix the cover member 30 and the frame 40 are screwed in from the rear outside of the cover member 30 (from the ceiling side), as shown in Figure 24. Specifically, the mounting screws 71 are screwed in from the outer surface of the locking piece 34 of the cover member 30, and the locking piece 34 of the cover member 30 and the second main plate portion 42 of the frame 40 are fixed by the mounting screws 71. As a result, the screw shaft of the mounting screw 71 is housed in the recess 46.

[0159] As described above, in the LED lighting fixture 1D and LED lighting device 3D according to this embodiment, the pair of second main plate portions 42 of the frame 40 are located further back than the first main plate portion 41, and the frame 40 has a pair of recesses 46 formed therein.

[0160] This allows functional components 60, etc., to be placed in one or both of the pair of recesses 46 of the frame 40. Therefore, functional components 60, etc., can be placed on the front side of the frame 40 without degrading the light distribution characteristics.

[0161] Furthermore, in this embodiment, the screw shaft of the mounting screw 71 is housed in the recess 46. This prevents the screw shaft of the mounting screw 71 from protruding forward of the substrate 10, thereby suppressing the obstruction of light from the LED 20. Consequently, deterioration of the light distribution characteristics of the LED lighting device 3D can be suppressed. The mounting screw 71 may also be screwed in from the second main plate portion 42 toward the locking piece 34. In this case, the screw head of the mounting screw 71 is housed in the recess 46.

[0162] Furthermore, in the above embodiment 1 and this embodiment, the cover member 30 and the frame 40 were fixed by mounting screws 71, but this is not limited to this. For example, as shown in Figure 25, the cover member 30D and the frame 40 may be fixed without using mounting screws 71. In this case, the mounting portion 32 of the cover member 30D and the vertical plate portion 44 of the frame 40 may be fixed by crimping or the like. Also, as shown in Figure 25, the locking piece 34 does not have to be formed on the cover member 30D. In other words, the vertical plate portion 44 of the frame 40 does not have to be in a structure where it is sandwiched between the extended piece 33 and the locking piece 34.

[0163] (Embodiment 6) Next, Embodiment 6 will be described using Figure 26. Figure 26 is a cross-sectional view of the LED lighting fixture 1E according to Embodiment 6.

[0164] The LED lighting fixture 1E and LED lighting device 3E 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 30E is different.

[0165] Specifically, as shown in Figure 26, in the LED lighting device 3E according to this embodiment, the cover member 30E does not have a locking piece 34, and the protrusion amount (length in the Z-axis direction) of the pair of mounting parts 32E is increased. This configuration improves the strength of the LED lighting device 3E.

[0166] As described above, in the LED lighting fixture 1E and LED lighting device 3E according to this embodiment, the pair of second main plate portions 42 of the frame 40 are located further back than the first main plate portion 41, and the frame 40 has a pair of recesses 46 formed therein.

[0167] This allows functional components 60, etc., to be placed in one or both of the pair of recesses 46 of the frame 40. Therefore, functional components 60, etc., can be placed on the front side of the frame 40 without degrading the light distribution characteristics.

[0168] In Figure 26, the mounting portion 32E of the cover member 30E was not bent, but as shown in the LED lighting fixture 1Eα and LED lighting device 3Eα in Figure 27, the pair of mounting portions 32Eα of the cover member 30Eα may be bent. In this case, it is preferable to bend the tips of the pair of mounting portions 32E inward to form an inclined portion on each of the pair of mounting portions 32E. This makes it easier to attach and detach the LED lighting device 3Eα to the fixture body 2 by rotating it, as shown in Figure 15.

[0169] In this case, the position of the bent portion of the mounting portion 32Eα is not limited to the configuration shown in Figure 27. For example, as shown in the LED lighting fixture 1Eβ and LED lighting device 3Eβ in Figure 28, the position of the bent portions of the pair of mounting portions 32Eβ on the cover member 30Eβ may be at the same height as the second main plate portion 42 of the frame 40. This makes it even easier to attach and detach the LED lighting device 3Eβ.

[0170] (Embodiment 7) Next, Embodiment 7 will be described using Figure 29. Figure 29 is a cross-sectional view of the LED lighting fixture 1F according to Embodiment 7.

[0171] The LED lighting fixture 1F and LED lighting device 3F 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 frame 40F is different.

[0172] Specifically, the frame 40F in this embodiment has a front plate portion 45 in addition to the frame 40 in the first embodiment described above. The front plate portion 45 is connected to the front end of the vertical plate portion 44 and faces the second main plate portion 42.

[0173] In this embodiment, the frame 40F has a pair of front plate sections 45. Each front plate section 45 is erected on the vertical plate section 44 and extends in the X-axis direction. That is, the front plate section 45 is parallel to the second main plate section 42. Also, the front plate section 45 is located at the same height as the first main plate section 41.

[0174] The front plate portion 45 is formed integrally with the vertical plate portion 44. Specifically, in this embodiment as well, the frame 40F is formed into a predetermined shape by bending or other processes applied to a single sheet of metal.

[0175] One of the pair of front plate portions 45 covers the functional component 60. Therefore, if the functional component 60 is a sensor unit that receives light such as infrared rays, the front plate portion 45 covering the functional component 60 is preferably provided with through holes for light to pass through. The front plate portion 45 may extend from the end of the vertical plate portion 44 so as not to cover the light-receiving part of the functional component 60.

[0176] As described above, in the LED lighting fixture 1F and LED lighting device 3F according to this embodiment, the pair of second main plate portions 42 of the frame 40F are located further back than the first main plate portion 41, and the frame 40F has a pair of recesses 46 formed therein.

[0177] This allows functional components 60, etc., to be placed in one or both of the recesses 46 of the frame 40F. Therefore, functional components 60, etc., can be placed on the front side of the frame 40F without degrading the light distribution characteristics.

[0178] Furthermore, in the LED lighting device 3F of this embodiment, the frame 40F has a front plate portion 45.

[0179] This configuration allows the light from the LED 20 to be reflected by the front plate portion 45, thereby suppressing the darkness caused by the pair of recesses 46 formed in the frame 40F.

[0180] (Embodiment 8) Next, Embodiment 8 will be described using Figure 30. Figure 30 is a cross-sectional view of the LED lighting fixture 1G according to Embodiment 8.

[0181] The LED lighting fixture 1G and LED lighting device 3G 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 frame 40G is different.

[0182] Specifically, in the frame 40G of this embodiment, a recess 41b is formed in the first main plate portion 41G. The recess 41b is formed to be recessed towards the rear. The substrate 10 on which the LED 20 is arranged is placed in this recess 41b. The recess 41b is formed along the entire length in the longitudinal direction of the first main plate portion 41G. Furthermore, the depth of the recess 41b is preferably greater than the combined thickness of the substrate 10 and the LED 20, but is not limited to this.

[0183] As described above, in the LED lighting fixture 1G and LED lighting device 3G according to this embodiment, the pair of second main plate portions 42 of the frame 40G are located further rear than the first main plate portion 41, and the frame 40G has a pair of recesses 46 formed therein.

[0184] This allows functional components 60, etc., to be placed in one or both of the pair of recesses 46 of the frame 40G. Therefore, functional components 60, etc., can be placed on the front side of the frame 40G without degrading the light distribution characteristics.

[0185] In this embodiment, similar to Embodiment 1 described above, the second main plate portion 42 of the frame 40G was formed with its main surface parallel to the X-axis direction. However, as in the frame 40H of the LED lighting fixture 1H and LED lighting device 3H shown in Figure 31, the second main plate portion 42H may be formed so that its main surface intersects with the X-axis direction. Specifically, the second main plate portion 42H may be formed to be inclined. In addition, in the frame 40H of this modified example, the connecting plate portion 43H is also inclined. The structure shown in Figure 31 can also be applied to other embodiments.

[0186] Furthermore, as shown in Figure 32, in the LED lighting fixture 1I and LED lighting device 3I, one of the pair of connecting plate sections may be brought closer to the vertical plate section 44, thereby narrowing the width of one of the pair of second main plate sections 42.

[0187] (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 8, the present invention is not limited to these Embodiments 1 to 8.

[0188] For example, in the above embodiment 1, the entire substrate 10 was in contact with the metal portion of the first main plate portion 41 of 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 33, an opening 41c may be formed in the first main plate portion 41J of the frame 40J, and a part of the second surface 10b of the substrate 10 may be exposed from the opening 41c 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 first main plate portion 41J of the frame 40J, the first surface 10a of the substrate 10 may be brought into contact with the inner surface of the first main plate portion 41J of the frame 40J, as shown in the LED lighting fixture 1K and LED lighting device 3K in Figure 34. 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 91 to support the substrate 10 may be separately provided, as shown in the LED lighting fixture 1L and LED lighting device 3L in Figure 35. The frame 40J having a first main plate portion 41J with openings 41c can be the one shown in Figure 36. In the frame 40J shown in Figure 36, three openings 41c are formed in the first main plate portion 41J, but it is not limited to this. Also, the frame 40J may be composed of two parts separated to the left and right (in the shorter direction).

[0189] Furthermore, when supporting the substrate 10, the frame 40M may also have a support member 49 for supporting the substrate 10, as shown in the LED lighting fixture 1M and LED lighting device 3M in Figure 37. The support member 49 supports the substrate 10 by pressing down on both ends of the substrate 10 in the short direction from above.

[0190] In this case, as shown in Figure 38, a pressing portion 33Na may be formed at the tip of a pair of extended pieces 33N of the cover member 30N, and the support member 49 may be pressed down by this pressing portion 33Na.

[0191] Furthermore, in the above embodiment 1, the substrate 10 was fixed to the frame 40 by claws 41a provided on the first main plate portion 41 of 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 39, the substrate 10 and the first main plate portion 41 of the frame 40 may be fixed together with adhesive 92. The adhesive 92 is inserted between the substrate 10 and the first main plate portion 41.

[0192] Furthermore, in the above embodiment 1, the locking piece 34 of the cover member 30 extended in a direction parallel to the first surface 10a of the substrate 10, but the locking piece 34 does not have to be parallel to the first surface 10a of the substrate 10. For example, as in the LED lighting fixture 1P and LED lighting device 3P shown in Figure 40, the locking piece 34P of the cover member 30P may be formed to bend at an acute angle from the mounting portion 32 toward the second main surface portion 42.

[0193] Furthermore, in the above embodiment 1, the substrate 61 of the functional component 60 was directly attached to the frame 40 as a single unit, but this is not limited to this. For example, as in the LED lighting fixture 1Q and LED lighting device 3Q shown in Figure 41, the substrate 61 of the functional component 60Q may be attached to the frame 40 with a resin member or insulating member interposed therebetween. Specifically, as shown in Figure 41, the functional component 60Q may have a case 63 made of an insulating resin material. The substrate 61 is placed on the inner surface of the case 63. This allows an insulating case 63 to be interposed between the substrate 61 and the frame 40, thereby increasing the insulation distance between the frame 40 and the substrate 61. This improves the dielectric strength of the substrate 61. Note that the screws 72 fix both the case 63 and the substrate 61 to the frame 40, but only the case 61 may be fixed to the frame 40. In this case, the substrate 61 is fixed to the case 63. Also, as shown in Figure 41, the functional component 60Q may further have a lid 64 that covers the case 63. The material constituting the lid 64 may be either a light-transmitting material or an opaque material. If the lid 64 is made of an opaque material, it is preferable that the lid 64 be made of a white resin material that reflects light. In this case, it is preferable that the lid 64 be provided with through holes so that light received by the functional component 60U or light emitted by the functional component 60 can be transmitted through it.

[0194] Furthermore, as shown in Figure 13, in the above embodiment 1, the case in which a dimming terminal block is placed as a functional component 60A in the recess 46 was described. In this case, it is preferable that a through hole be formed on the second direction side or the inside in the width direction of the frame 40 (the side facing the power supply 4 in the part where the power supply 4 is not present). This allows the contractor to easily connect the wire to the functional component 60A by passing a wire such as a VVF cable or a dimming signal wire through this through hole.

[0195] For example, as shown in the LED lighting fixture 1R and LED lighting device 3R in Figure 42, a through hole 42b may be provided in the second main plate portion 42 of the frame 40, and the electric wire 110 may be passed through this through hole 42a from the Z-axis direction (vertical direction) to connect the electric wire 110 to the functional component 60A. Alternatively, as shown in the LED lighting fixture 1S and LED lighting device 3S in Figure 43, a through hole 43a may be provided in the connecting plate portion 43 of the frame 40, and the electric wire 110 may be passed through this through hole 43a from the X-axis direction (horizontal direction) to connect the electric wire 110 to the functional component 60A. Note that the through holes 42a and 43a may be formed for each electric wire 110, but they may also be formed as larger openings to allow multiple electric wires 110 to pass through. Furthermore, the size of the openings of the through holes 42a and 43a should be large enough to ensure sufficient insulation distance from the electric wire 110. Furthermore, insulation may be improved by fitting resin parts of insulating bushings or the like into the through holes 42a and 43a. The openings of the through holes 42a and 43a can be any shape, such as a circle or a rectangle.

[0196] Furthermore, in the above embodiment 1, the LED lighting device 3 was rotated and attached to the fixture body 2, but the LED lighting device 3 may also be attached to the fixture body 2 without rotating it. Specifically, the LED lighting device 3 may be moved vertically so as to move it parallel to the fixture body 2 installed on the ceiling, and then the LED lighting device 3 may be pushed vertically into the recess 2a of the fixture body 2 and fitted into place, thereby attaching the LED lighting device 3 to the fixture body 2.

[0197] Furthermore, in the above embodiment 1, an SMD type LED element with an LED chip mounted in a package was used as the LED 20, and the light-emitting module consisting of the substrate 10 and the LED 20 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 the LED 20 may be a COB (Chip On Board) type LED module. In this case, the LED chip (bare chip) itself can be used as the LED 20, and a plurality of LEDs 20 (LED chips) can be arranged linearly on the substrate 10, and the plurality of LEDs 20 can be sealed together or individually with a sealing member (for example, a phosphor-containing resin).

[0198] Furthermore, while the above embodiment 1 uses 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 to the other side may be used as the light-transmitting cover.

[0199] 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]

[0200] 1, 1A, 1Aα, 1B, 1C, 1Cα, 1Cβ, 1D, 1E, 1Eα, 1Eβ, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M, 1N, 1O, 1P, 1Q, 1R, 1S LED lighting fixtures 2. Main body of the device 3, 3A, 3Aα, 3B, 3C, 3Cα, 3Cβ, 3D, 3E, 3Eα, 3Eβ, 3F, 3G, 3H, 3I, 3J, 3K, 3L, 3M, 3N, 3O, 3P, 3Q, 3R, 3S LED lighting equipment 4 Power supply 5. Hanging hardware 6 Elastic retaining member 10 circuit boards 20 LED 30, 30C, 30Cα, 30Cβ, 30D, 30E, 30Eα, 30Eβ, 30N, 30P カバー parts 31 カバー main body part 32, 32C, 32E, 32Eα, 32Eβ withdrawal and payment department 33, 33C, 33Cβ, 33N extension plates 40, 40F, 40G, 40H, 40I, 40J, 40M フレーム 41, 41G, 41J First Mainboard Section 42, 42H Second Mainboard Section 43, 43H Connecting plate section 44 Vertical board part 60, 60A, 60Q Functional Components Conductive wires 81, 82, and 83

Claims

1. A circuit board with LEDs arranged on it, A long frame on which the aforementioned substrate is attached, The system comprises a cover member attached to the frame so as to cover the LED, The frame has a first main plate portion extending along the longitudinal direction of the frame, and a pair of second main plate portions located on both sides of the first main plate portion in the short direction of the frame and extending along the longitudinal direction of the frame. With respect to the frame, the direction in which the substrate is arranged on the frame is defined as the first direction, and the direction opposite to the first direction is defined as the second direction. Then, the pair of second main plate portions are located on the second direction side of the first main plate portion. The frame has a pair of vertical plates that protrude toward the first direction from each end of the pair of second main plates, The cover member comprises a cover body, a mounting portion extending from the cover body toward the frame, an extension piece erected on the mounting portion on the inside of the mounting portion, and a locking piece erected on the mounting portion. At least one of the pair of vertical plate portions is sandwiched between the extending piece and the locking piece. The extension piece is made of a white, opaque resin material. The locking piece is made of a translucent resin material. LED lighting equipment.

2. The frame has a pair of connecting plate portions that connect the first main plate portion and each of the pair of second main plate portions. The LED lighting device according to claim 1.

3. A spatial region exists between the extended piece and the second main plate portion. The LED lighting device according to claim 1 or 2.

4. The substrate is arranged on the first main plate portion. An LED lighting device according to any one of claims 1 to 3.

5. The system includes a power supply device for supplying power to the aforementioned LED, The power supply unit is arranged across the second direction side of the first main plate portion and the second direction side of one of the pair of second main plate portions. An LED lighting device according to any one of claims 1 to 4.

6. A recess is formed on the first direction side of each of the pair of second main plate portions due to the step difference between the first main plate portion and the pair of second main plate portions. The components constituting the LED lighting device are arranged in the recess. An LED lighting device according to any one of claims 1 to 4.

7. The components constituting the LED lighting device are functional components related to the lighting of the LEDs. The LED lighting device according to claim 6.

8. The components constituting the aforementioned LED lighting device are conductive wires. The LED lighting device according to claim 6.

9. The components constituting the LED lighting device are arranged separately in each of the pair of recesses formed on the first direction side of each of the pair of second main plate portions. The LED lighting device according to any one of claims 6 to 8.

10. An LED lighting device according to any one of claims 1 to 9, The fixture comprises a fixture body that holds the aforementioned LED lighting device, LED lighting fixtures.

11. The LED lighting device is detachably attached to the fixture body. The LED lighting fixture according to claim 10.

Images