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 located at one side in a shorter side direction of the frame 40 and extending along a longitudinal direction of the frame 40; and a second main plate part 42 located at the other side in the 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 second main plate part 42 is located at the second direction side relative to the first main plate part 41.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an LED lighting device and an LED lighting fixture equipped with the LED lighting device. [Background technology]

[0002] LED lighting fixtures that use LEDs (Light Emitting Diodes) are known. For example, a lighting fixture that is installed on a ceiling includes a long LED lighting device called a light bar and a long fixture body that has a recess into which the LED lighting device can be detachably attached (Patent Document 1).

[0003] This type of LED lighting device comprises a long substrate, multiple LEDs mounted on the substrate, a long, translucent cover member that covers the multiple 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 to which a substrate on which LEDs are mounted is attached, and a pair of side boards extending from both ends of the main board in the short direction (width direction) toward the ceiling. That is, a recess surrounded by the main board and the pair of side boards is formed on the ceiling side (rear side) of the frame. A power supply unit or functional components such as a sensor unit as a function expansion module are placed in this recess of the frame. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-176747 Summary of the Invention [Problem to be solved by the invention]

[0006] However, if the functional components are placed in a recess formed on the ceiling side (rear side) of the frame, that is, if the functional components are placed on the back side of the frame, it becomes difficult to route the conductive wires connected to the functional components, and the conductive wires may get caught between the frame and the fixture body when the LED lighting fixture is installed.On the other hand, if the functional components are placed on the opposite side of the frame from the recess, that is, on the floor side (front side) of the frame, the functional components may block the LED light, degrading the light distribution characteristics.

[0007] The present invention has been made in consideration of these problems, and aims to provide an LED lighting device and an LED lighting fixture that can place functional components on the front side of the frame without degrading the light distribution characteristics. [Means for solving the problem]

[0008] In order to achieve the above object, one embodiment of the LED lighting device of the present invention comprises a substrate on which LEDs are arranged, a long 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 board portion located on one side of the short side of the frame and extending along the long side of the frame, and a second main board portion located on the other side of the short side of the frame and extending along the long side of the frame, and when the direction on the side of the frame on which the substrate is arranged is defined as a first direction relative to the frame, and the direction opposite to the first direction is defined as a second direction, the second main board portion is located on the second direction side of the first main board portion.

[0009] An embodiment of an LED lighting fixture according to the present invention includes the above LED lighting device and a fixture body that holds the LED lighting device. [Effects of the Invention]

[0010] Functional components such as a sensor unit can be disposed on the front side (first direction side) of the frame without deteriorating the light distribution characteristics. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of an LED lighting fixture according to the first embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the LED lighting fixture according to the first embodiment. [Figure 3] FIG. 3 is a cross-sectional view of the LED lighting fixture according to the first embodiment. [Figure 4] FIG. 4 is a perspective view of the LED lighting device according to the first embodiment as viewed from the cover member side. [Figure 5] FIG. 5 is a perspective view of the LED lighting device according to the first embodiment as seen from the back side. [Figure 6] FIG. 6 is a cross-sectional perspective view of the LED lighting device according to the first embodiment. [Figure 7] FIG. 7 is an exploded perspective view of the LED lighting device according to the first embodiment. [Figure 8] FIG. 8 is a top view of the LED lighting device according to embodiment 1 with the cover member removed. [Figure 9] FIG. 9 is a cross-sectional view of the LED lighting device according to embodiment 1 cut along a plane passing through a mounting screw for fixing a functional component. [Figure 10] FIG. 10 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 1. As shown in FIG. [Figure 11] FIG. 11 is a cross-sectional view of the LED lighting fixture according to embodiment 1 cut so as to pass through the mounting screws for fixing the power supply device. [Figure 12] FIG. 12 is a cross-sectional view of the LED lighting device according to embodiment 1 cut so as to pass through the mounting screws for fixing the elastic holding members. [Figure 13] FIG. 13 is a cross-sectional view of an LED lighting device according to Modification 2 of Embodiment 1. As shown in FIG. [Figure 14] FIG. 14 is a cross-sectional view of an LED lighting device according to Modification 3 of Embodiment 1. As shown in FIG. [Figure 15]FIG. 15 is a diagram for explaining a method for attaching the LED lighting device to the fixture body in the LED lighting fixture according to embodiment 1. In FIG. [Figure 16] FIG. 16 is a cross-sectional view of an LED lighting device according to the second embodiment. [Figure 17] FIG. 17 is a cross-sectional view of an LED lighting device according to a modification of the second embodiment. [Figure 18] FIG. 18 is a cross-sectional view of an LED lighting device according to the third embodiment. [Figure 19] FIG. 19 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 3. As shown in FIG. [Figure 20] FIG. 20 is a cross-sectional view of an LED lighting device according to Modification 2 of Embodiment 3. In FIG. [Figure 21] FIG. 21 is a cross-sectional view of an LED lighting device according to the fourth embodiment. [Figure 22] FIG. 22 is a cross-sectional view of an LED lighting device according to a modification of the fourth embodiment. [Figure 23] FIG. 23 is a cross-sectional view of an LED lighting device according to the fifth embodiment. [Figure 24] FIG. 24 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 5. In FIG. [Figure 25] FIG. 25 is a cross-sectional view of an LED lighting device according to Modification 2 of Embodiment 5. In FIG. [Figure 26] FIG. 26 is a cross-sectional view of an LED lighting device according to the sixth embodiment. [Figure 27] FIG. 27 is a cross-sectional view of an LED lighting fixture according to a modification of the sixth embodiment. [Figure 28] FIG. 28 is a cross-sectional view of an LED lighting device according to the seventh embodiment. [Figure 29] FIG. 29 is a cross-sectional view of an LED lighting device according to the eighth embodiment. [Figure 30] FIG. 30 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 8. As shown in FIG. [Figure 31] FIG. 31 is a cross-sectional view of an LED lighting device according to Modification 2 of Embodiment 8. In FIG. [Figure 32] FIG. 32 is a cross-sectional view of an LED lighting device according to embodiment 9. As shown in FIG. [Figure 33] FIG. 33 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 9. As shown in FIG. [Figure 34] FIG. 34 is a cross-sectional view of an LED lighting device according to Modification 2 of Embodiment 9. In FIG. [Figure 35] FIG. 35 is a cross-sectional view of an LED lighting device according to Modification 3 of Embodiment 9. In FIG. [Figure 36] FIG. 36 is a cross-sectional view of an LED lighting device according to the first modification. [Figure 37] FIG. 37 is a cross-sectional view of an LED lighting device according to the second modification. [Figure 38] FIG. 38 is a cross-sectional view of an LED lighting device according to the third modification. [Figure 39] FIG. 29 is a perspective view of a frame used in the LED lighting fixtures according to the first to third modifications. [Figure 40] FIG. 40 is a cross-sectional view of an LED lighting device according to the fourth modification. [Figure 41] FIG. 41 is a cross-sectional view of an LED lighting device according to the fifth modification. [Figure 42] FIG. 42 is a cross-sectional view of an LED lighting device according to the sixth modification. [Figure 43] FIG. 43 is a cross-sectional view of an LED lighting device according to the seventh modification. [Figure 44] FIG. 44 is a cross-sectional view of an LED lighting device according to the eighth modification. [Figure 45] FIG. 45 is a cross-sectional view of an LED lighting device according to the ninth modification. [Figure 46] FIG. 46 is a cross-sectional view of an LED lighting device according to the tenth modification. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present invention. Therefore, the numerical values, components, the arrangement and connection of the components, steps, and the order of steps shown in the following embodiments are merely examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, components that are not described in the independent claims that represent the highest concept of the present invention will be described as optional components.

[0013] Note that each figure is a schematic diagram and is not necessarily an exact illustration. Furthermore, in each figure, substantially the same components are assigned the same reference numerals, and redundant explanations are omitted or simplified. Furthermore, in each figure, the X-axis, Y-axis, and Z-axis represent the three axes of a three-dimensional Cartesian coordinate system, and in this embodiment, the Z-axis direction is the vertical direction, and the direction perpendicular to the Z-axis (the direction parallel to the XY plane) is the horizontal direction. The X-axis and Y-axis are axes that are mutually orthogonal and are both 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 downward direction (vertically downward) in absolute spatial recognition.

[0014] (Embodiment 1) First, the configuration of an LED lighting fixture 1 according to embodiment 1 will be described with reference to Figs. 1 to 3. Fig. 1 is a perspective view of the LED lighting fixture 1 according to embodiment 1. Fig. 2 is an exploded perspective view of the LED lighting fixture 1. Fig. 3 is a cross-sectional view of the LED lighting fixture 1. Fig. 3 shows a cross section of the LED lighting fixture 1 taken along a plane parallel to the short side direction of the LED lighting fixture 1.

[0015] An LED lighting fixture 1 according to this embodiment includes a fixture body 2 and an LED lighting device 3 attached to the fixture body 2, as shown in FIGS.

[0016] The fixture body 2 holds the LED lighting device 3. The fixture body 2 is installed at a predetermined location in a building. The LED lighting fixture 1 in this embodiment is a ceiling-mounted lighting fixture. Therefore, the fixture body 2 is attached to the ceiling inside a 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 the metal plate or the like. As shown in FIG. 2, the fixture body 2 is provided with a recess 2a having a rectangular opening. The recess 2a is provided elongated along the longitudinal direction of the fixture body 2. The recess 2a is a storage section for storing the LED lighting device 3 and is provided over substantially the entire length of the fixture body 2. Furthermore, as shown in FIGS. 2 and 3, on both sides of the recess 2a in the width direction of the fixture body 2, there are provided inclined surfaces 2b that extend from the opening edge of the recess 2a and slope upward (towards the ceiling) as they go outward.

[0018] The LED lighting device 3 is a light source unit that uses an LED as a 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 detached from the recess 2a. As will be described in detail later, the LED lighting device 3 and the fixture body 2 can be fixed by hooking and engaging a hook metal fitting 5 and an elastic holding member 6 (a kick spring in this embodiment) provided on the LED lighting device 3 onto the fixture body 2.

[0019] As shown in Fig. 3, the LED lighting device 3 emits light using power supplied from a power supply device 4 housed in the fixture body 2. The power supply device 4 is a device for supplying power to the LED lighting device 3. The power supply device 4 is an example of an electrical functional component.

[0020] The power supply device 4 is disposed on the rear side of the LED lighting device 3. Specifically, the power supply device 4 is disposed in the recess 2a of the fixture body 2. In this embodiment, the power supply device 4 is attached to the LED lighting device 3 as a part of the LED lighting device 3 and is integrated with the LED lighting device 3. Note that the power supply device 4 may be disposed in the fixture body 2 separately from the LED lighting device 3, rather than being integrated with the LED lighting device 3.

[0021] The power supply device 4 is configured with a power supply circuit that generates power for illuminating the LED lighting device 3. Specifically, the power supply device 4 has a circuit board 4a such as a printed wiring board, and a plurality of electronic components 4b mounted on the circuit board 4a. In this embodiment, the power supply device 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 device 4 converts AC power from an external power source such as a commercial power source into DC power of a predetermined level by rectifying, smoothing, and stepping down the power, and supplies the DC power to the LEDs of the LED lighting device 3.

[0022] AC power is supplied to the power supply device 4 via a power terminal block 8 (see FIG. 2) connected to a power line (such as a VVF cable) that is inserted from above the ceiling into a through-hole in the fixture body 2 and drawn out to the recess 2a of the fixture body 2. 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 Figs. 4 to 8 while referring to Figs. 1 to 3. Fig. 4 is a perspective view of the LED lighting device 3 according to embodiment 1 as seen from the cover member 30 side, and Fig. 5 is a perspective view of the LED lighting device 3 as seen from the back side. Fig. 6 is a cross-sectional perspective view of the LED lighting device 3. Fig. 7 is an exploded perspective view of the LED lighting device 3. Fig. 8 is a top view of the LED lighting device 3 with the cover member 30 removed.

[0024] 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 includes a substrate 10, an LED 20 arranged on the substrate 10, a cover member 30 that covers the LED 20, a frame 40 that supports the substrate 10, and an end cap 50.

[0026] The substrate 10 is a mounting substrate for mounting the LEDs 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 length of the substrate 10 may be substantially the same as the overall length of the frame 40 in the longitudinal direction, or a plurality of substrates 10 may be arranged along the longitudinal direction of the frame 40. As shown in FIG. 7, in this embodiment, two substrates 10 are arranged along the longitudinal direction of the frame 40.

[0027] 6 and 7, the substrate 10 has a first surface 10a, which is one surface, and a second surface 10b, which is the other surface facing away from the first surface 10a. The first surface 10a of the substrate 10 is the front surface on which the LEDs 20 are mounted. On the other hand, the second surface 10b of the substrate 10 is the back surface facing 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 wiring board (printed circuit board) on which metal wiring is formed in a predetermined pattern. Note that a resist made of an insulating resin material may be formed on the surface of the substrate 10 so as to cover the wiring in order to protect the wiring and ensure a dielectric strength voltage. The substrate 10 may be a single-sided wiring board in which wiring is formed only on the first surface 10a on which the LEDs 20 are mounted, or may be a double-sided wiring board in which wiring is formed on both the first surface 10a and the second surface 10b.

[0029] The base material constituting the substrate 10 may be a resin substrate made of an insulating resin material, a ceramic substrate made of a sintered body of a ceramic material such as alumina, or a metal-based substrate obtained by applying an insulating coating to the surface of a metal substrate made of a metal material such as aluminum or copper.

[0030] When the substrate 10 is made of a resin substrate, examples of the resin substrate that can be used include a glass epoxy substrate (CEM-3, FR-4, etc.) made of glass fiber 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, etc. The substrate 10 may be a rigid substrate or a film-like flexible substrate.

[0031] The metal wiring formed on the substrate 10 is electrically connected to the power supply device 4. In this case, the electrodes or connector terminals formed on the substrate 10 are connected to the power supply device 4 by conductive wires. The conductive wires connecting the substrate 10 and the power supply device 4 are inserted, for example, into through holes provided in the frame 40.

[0032] 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 linear row along the longitudinal direction (Y-axis direction) of the substrate 10 at predetermined intervals. Specifically, the plurality of LEDs 20 are mounted over substantially the entire length of the cover member 30 and the frame 40 in the longitudinal direction. Note that the plurality of LEDs 20 may be mounted in multiple rows along the longitudinal direction of the substrate 10 instead of in a single row.

[0033] The LED 20 is an example of a light-emitting element. In this embodiment, each of the multiple LEDs 20 is an individually packaged LED element (LED light source) with an SMD structure. In this case, each LED 20 includes a white container (package) made of resin or ceramic, an LED chip (bare chip) placed in the container, and a sealing member that seals the LED chip. In this embodiment, the 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 powered is used as the LED chip, and a silicone resin (phosphor-containing resin) containing a yellow phosphor such as YAG is used as the sealing member filled in the container.

[0034] The LEDs 20 emit light when a direct current is supplied from the power supply 4 via conductive wires connecting the power supply 4 and the substrate 10.

[0035] The LEDs 20 are covered with a cover member 30. Specifically, all of the LEDs 20 are covered with the cover member 30. The cover member 30 is an example of a light-transmitting cover that transmits light emitted from the LEDs 20. In this embodiment, the cover member 30 is a diffusion cover that not only transmits light but also diffuses light. Therefore, the light from the LEDs 20 that enters the cover member 30 is diffused (scattered) by the cover member 30 and passes through the cover member 30.

[0036] 3 and 6, the cover member 30 covers the substrate 10. Specifically, the cover member 30 is disposed opposite the first surface 10a of the substrate 10 so as to cover the plurality of LEDs 20. In this embodiment, the cover member 30 covers the entire substrate 10 on which the LEDs 20 are arranged.

[0037] 5 and 6, the cover member 30 further covers the frame 40 on which the substrate 10 is disposed. In the present embodiment, the cover member 30 covers the entire frame 40 on which the substrate 10 is disposed. Therefore, the cover member 30 covers the first main plate portion 41 and the second main plate portion 42 of the frame 40. Note that 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 substrate 10 and the plurality of LEDs 20 mounted on the substrate 10 are housed within this cylindrical body.

[0039] The cover member 30 is attached to the frame 40 so as to cover the substrate 10 and the LEDs 20. As shown in Figures 3 and 6, the cover member 30 has a cover main body portion 31 and an attachment portion 32 connected to the cover main body portion 31.

[0040] As shown in Fig. 7, the cover main body 31 is elongated in the Y-axis direction and formed in a gutter shape. The cover main body 31 has, for example, a flat, approximately semi-cylindrical shape. Therefore, the cover main body 31 has an elongated rectangular opening end surface extending in the Y-axis direction. Furthermore, the cross-sectional shape of the cover main body 31 when cut along the X-axis direction has a curved shape that is curved in an approximately arc shape.

[0041] As shown in FIGS. 3 and 6 , the cover body 31 includes protrusions 31a that protrude outward in the width direction of the cover body 31 from the mounting portion 32. The protrusions 31a are formed at both ends of the cover body 31 in the lateral direction (width direction). Each protrusion 31a has a recess 31a1 recessed on the side opposite the frame 40. If the recess 31a1 is formed, it may become an insect pocket and accumulate dead insects or foreign matter, causing the lateral end of the cover body 31 to become dull. Therefore, the recess 31a1 may not be formed in each protrusion 31a. In this case, for example, the XZ cross section of the protrusion 31a may be V-shaped, and the ceiling side of the protrusion 31a may be formed flush with the extension piece 33 via the mounting portion 32.

[0042] The attachment portion 32 is a portion that is attached to the frame 40. The attachment portion 32 is also an extension portion that extends from the cover main body portion 31 toward the frame 40 side.

[0043] A pair of mounting portions 32 are provided on the cover main body 31. Specifically, the mounting portions 32 are formed as a pair of legs that stand on both ends of the cover main body 31 in the short side direction (X-axis direction). Therefore, the pair of mounting portions 32 protrude from the cover main body 31 toward the ceiling. As shown in FIG. 7, each of the pair of mounting portions 32 is formed elongated along the Y-axis direction. The pair of mounting portions 32 have the same length in the Y-axis direction.

[0044] 3, 6, and 7, the pair of mounting portions 32 is composed of a first mounting portion 321 and a second mounting portion 322 that are provided opposite each other in the X-axis direction. In this embodiment, the amount of protrusion (length in the Z-axis direction) of the first mounting portion 321 from the cover main body portion 31 is different from the amount of protrusion (length in the Z-axis direction) of the second mounting portion 322 from the cover main body portion 31. Specifically, the amount of protrusion of the second mounting portion 322 is smaller than the amount of protrusion of the first mounting portion 321.

[0045] The protrusion amounts of the first mounting portion 321 and the second mounting portion 322 are each constant over the entire longitudinal length of the cover member 30. In other words, over the entire longitudinal length of the cover member 30, the leg length (length in the Z-axis direction) of the second mounting portion 322 is shorter than the leg length (length in the Z-axis direction) of the first mounting portion 321.

[0046] 3 and 6, the mounting portion 32 is provided with an extension piece 33. The extension piece 33 stands upright from each mounting portion 32 on the inner side of each of the pair of mounting portions 32. Specifically, the first mounting portion 321 and the second mounting portion 322 are each provided with an extension piece 33. 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.

[0047] In this embodiment, the pair of extension pieces 33 have the same length in the X-axis direction. As shown in FIG. 7, each of the pair of extension pieces 33 is formed elongated along the Y-axis direction. The pair of extension pieces 33 also have the same length in the Y-axis direction. As an example, the pair of extension pieces 33 have the same shape and the same length, but this is not limiting. The pair of extension pieces 33 are also provided at the same height in the Z-axis direction.

[0048] Of the pair of extension pieces 33, the extension piece 33 provided on the first mounting portion 321 extends to reach the first main plate portion 41 of the frame 40. The extension piece 33 provided on the first mounting portion 321 is in contact with the surface of the first main plate portion 41 of the frame 40.

[0049] On the other hand, of the pair of extension pieces 33, the extension piece 33 provided on the second mounting portion 322 extends to reach the standing plate portion 45 that stands on the second main plate portion 42 of the frame 40. The extension piece 33 provided on the second mounting portion 322 contacts the tip of the standing plate portion 45 of the frame 40 and extends beyond the standing plate portion 45.

[0050] The extension pieces 33 provided on each of the first attachment portion 321 and the second attachment portion 322 extend from the attachment portion 32 along the short-side 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 pieces 33 are plate pieces formed in a plate shape with a constant thickness.

[0051] The pair of extension pieces 33 function as stoppers that press down on the frame 40. That is, the pair of extension pieces 33 prevent the frame 40 from shifting toward the light emission side (floor side) of the LEDs 20. In this embodiment, the pair of extension pieces 33 press down on the first main plate portion 41 and the standing plate portion 45 of the frame 40 from the floor side (light emission side of the LEDs 20) toward the ceiling side, thereby preventing the frame 40 from shifting toward the floor side.

[0052] Furthermore, each extension piece 33 also has the function of preventing insects from entering the space between the cover body 31 of the cover member 30 and the first main plate 41 and second main plate 42 of the frame 40. In other words, by providing the extension pieces 33 so as to press down on the frame 40, a maze structure can be formed in the path that insects take when they enter through the gap between the mounting portion 32 of the cover member 30 and the side plate 44 of the frame 40, thereby preventing insects from entering the interior.

[0053] As shown in FIGS. 6 and 7, a recess 321a is provided in the first mounting portion 321 of the pair of mounting portions 32. In this embodiment, the recess 321a is provided at the tip of the first mounting portion 321. Specifically, the recess 321a is provided on the inner side in the width direction (X-axis direction) of the tip of the first mounting portion 321. A bent portion 44a provided at the tip of the side plate portion 44 of the frame 40 is fitted into the recess 321a provided in the first mounting portion 321. This allows the cover member 30 and the frame 40 to be engaged and fixed together. In this embodiment, as shown in FIG. 3, the cover member 30 and the frame 40 are further fixed together by a mounting screw 71. The mounting screw 71 is screwed into the cover member 30 from the outside of the side.

[0054] Furthermore, a locking piece 34 is connected to the second mounting portion 322 of the pair of mounting portions 32. In the present embodiment, the locking piece 34 is provided at the tip of the second mounting portion 322. Specifically, the locking piece 34 stands inward from the tip of the second mounting portion 322.

[0055] Like the extension piece 33 provided on the second mounting portion 322, the locking piece 34 extends from the mounting portion 32 along the short-side direction (X-axis direction) of the cover member 30. 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 reach the second main plate portion 42 of the frame 40. Specifically, the locking piece 34 contacts 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-like piece formed with a constant thickness. In the present embodiment, the locking piece 34 has the same shape and length as the extension piece 33 provided on the second mounting portion 322, but this is not limited to this.

[0056] The extension piece 33 and the locking piece 34 provided on the second mounting portion 322 have a sandwiching structure that sandwiches the standing plate portion 45 of the frame 40. In other words, the standing plate portion 45 of the frame 40 is sandwiched between the extension piece 33 and the locking piece 34. The standing plate portion 45 is sandwiched between the extension piece 33 and the locking piece 34 in a position where it stands upright on each of the extension piece 33 and the locking piece 34 that are arranged in parallel.

[0057] The cover member 30 is attached to the side plate portion 44 and the standing plate portion 45 of the frame 40. In the present embodiment, the first attachment portion 321 of the cover member 30 is attached to the side plate portion 44 of the frame 40, and the extension piece 33 and the locking piece 34 of the second attachment portion 322 of the cover member 30 are attached to the standing plate portion 45 of the frame 40. Specifically, the bent portion 44a provided at the tip of the side plate portion 44 of the frame 40 is fitted into the recess 321a provided in the first attachment portion 321, and the standing plate portion 45 of the frame 40 is sandwiched between the extension piece 33 and the locking piece 34 provided in the second attachment portion 322, thereby locking and fixing the frame 40 and the cover member 30 together.

[0058] In this embodiment, the pair of mounting portions 32 of the cover member 30 are located outside the side plate portions 44 and the upright plate portions 45 of the frame 40. Therefore, the pair of mounting portions 32 of the cover member 30 are fixed to and held by the frame 40 so as to embrace 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.

[0059] 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 may be a milky white cover member with a light diffusing material dispersed therein. Such a cover member 30 may be produced by resin molding a translucent resin material mixed with a light diffusing material into a predetermined shape. Light-reflective fine particles such as silica particles may be used as the light diffusing material.

[0060] The cover member 30 may be configured 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 a light-diffusing material inside. The cover member 30 may also be configured to have light-diffusing properties by applying a diffusing treatment, rather than using a light-diffusing material. For example, the cover member 30 may be configured to have light-diffusing properties by applying a surface treatment such as a texturing treatment to form minute irregularities on the surface of the transparent cover, or by printing a dot pattern on the surface of the transparent cover. Even when the cover member 30 is subjected to a diffusing treatment, it may further contain a light-diffusing material to enhance light-diffusing properties.

[0061] In this embodiment, the cover body 31 and the attachment portion 32 that constitute the cover member 30 are integrally formed. Therefore, the cover body 31 and the attachment portion 32 are made of the same material. Specifically, the entire cover member 30, including not only the cover body 31 and the attachment portion 32 but also the extension piece 33 and the locking piece 34, is integrally formed.

[0062] 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.

[0063] As an example, the frame 40 is made of sheet metal. The frame 40 is formed into a predetermined shape by performing roll forming, press working, or the like on a single sheet of metal (metal plate) made of, for example, SPCC (Steel Plate Cold Commercial; cold-rolled steel plate). As shown in FIG. 3, in this embodiment, the frame 40 is formed so that its XZ cross section is approximately ladle-shaped. Similarly to the substrate 10 and the appliance body 2, the frame 40 is formed into an elongated shape in the Y-axis direction. 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 working, 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 is 0.5 mm.

[0064] 3 to 7, the frame 40 has a plate-shaped first main plate portion 41, a plate-shaped second main plate portion 42, a plate-shaped connecting plate portion 43, plate-shaped side plate portions 44, and a plate-shaped standing plate portion 45. In the present embodiment, the first main plate portion 41, the second main plate portion 42, the connecting plate portion 43, the side plate portions 44, and the standing plate portion 45 are all flat. Also, as shown in FIG. 7, the first main plate portion 41, the second main plate portion 42, the connecting plate portion 43, the side plate portions 44, and the standing plate portion 45 are all elongated and extend along the longitudinal direction (Y-axis direction) of the frame 40.

[0065] 3, the first main plate 41 is located on one side of the frame 40 in the short side direction (X-axis direction). The second main plate 42 is located on the other side of the frame 40 in the short side direction (X-axis direction). In this embodiment, the outer end of the first main plate 41 in the X-axis direction (the end opposite to the second main plate 42 side) is one end of the frame 40 in the X-axis direction. The outer end of the second main plate 42 in the X-axis direction (the end opposite to the first main plate 41 side) is the other end of the frame 40 in the X-axis direction.

[0066] The length in the short side direction of the first main plate portion 41 is longer than the length in the short side direction of the second main plate portion 42. In other words, the width of the first main plate portion 41 is greater than the width of the second main plate portion 42.

[0067] In the present embodiment, the width of the first main plate 41 is greater than the width of the substrate 10 on which the LEDs 20 are arranged. The width of the first main plate 41 is greater than half the width of the frame 40. As an example, the width of the first main plate 41 is at least twice the width of the second main plate 42, but is not limited to this.

[0068] A substrate 10 on which LEDs 20 are arranged is disposed on the first main plate portion 41. Specifically, the substrate 10 is placed on the floor side surface of the first main plate portion 41. In this embodiment, the second surface 10b of the substrate 10 and the floor side surface of the first main plate portion 41 are in surface contact with each other.

[0069] 7, the first main plate 41 has claws 41a formed by cutting and raising parts of the sheet metal frame 40. The circuit board 10 placed on the first main plate 41 is fixed to the first main plate 41 by being locked by the claws 41a. The first main plate 41 also has through holes through which conductive wires are inserted to electrically connect the electrodes of the circuit board 10 and the power supply device 4.

[0070] The first main plate portion 41 and the second main plate portion 42 are disposed at positions at different heights. Specifically, with respect to the frame 40 as a reference, the direction on the side of the frame 40 on which the substrate 10 is disposed is defined as the front (first direction), and the direction opposite to the front is defined as the rear (second direction), so that the second main plate portion 42 is positioned rearward of the first main plate portion 41.

[0071] In this embodiment, the front (first direction) is the direction toward the floor surface, and the rear (second direction) is the direction toward the ceiling surface. Therefore, the second main plate portion 42 is located closer to the ceiling than the first main plate portion 41.

[0072] The first main plate portion 41 and the second main plate portion 42, which are arranged at different heights, are connected by a connecting plate portion 43. The connecting plate portion 43 is a connecting member for connecting the first main plate portion 41 and the second main plate portion 42.

[0073] One end of the connecting plate portion 43 is connected to the inner end portion in the X-axis direction of the first main plate portion 41 (the end portion on the second main plate portion 42 side). The other end of the connecting plate portion 43 is connected to the inner end portion in the X-axis direction of the second main plate portion 42 (the end portion on the first main plate portion 41 side).

[0074] The 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 formed between the first main plate portion 41 and the connecting plate portion 43 is 90 degrees, and the angle formed 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 a metal plate at approximately 90 degrees.

[0075] The side plate portion 44 is connected to the first main plate portion 41. Specifically, the side plate portion 44 is connected to the outer end portion in the X-axis direction of the first main plate portion 41 (the end portion opposite to the second main plate portion 42 side).

[0076] The side plate portions 44 constitute the side surfaces of the frame 40. The side plate portions 44 protrude rearward from the outer end portions of the first main plate portion 41. In other words, the side plate portions 44 protrude from the outer end portions of the first main plate portion 41 toward the ceiling. The side plate portions 44 are formed as legs that stand on the first main plate portion 41. The side plate portions 44 and the first main plate portion 41 can be formed by bending a metal plate at approximately 90 degrees.

[0077] A standing plate portion 45 is connected to the second main plate portion 42. Specifically, the standing plate portion 45 is a standing wall portion that stands like a wall on the second main plate portion 42. In the present embodiment, the standing plate portion 45 is connected to the outer end portion in the X-axis direction of the second main plate portion 42 (the end portion on the opposite side to the first main plate portion 41 side).

[0078] The standing plate portion 45, like the side plate portion 44, constitutes a side portion of the frame 40. The standing plate portion 45 protrudes forward from the outer end of the second main plate portion 42. In other words, the standing plate portion 45 protrudes in the opposite direction to the side plate portions 44, and protrudes toward the floor from the outer end of the second main plate portion 42. The standing plate portion 45 and the second main plate portion 42 can be formed by bending a metal plate at approximately 90 degrees so as to form an L-shaped cross section.

[0079] 7, the side plate portions 44 and the standing plate portions 45 are formed to be elongated along the Y-axis direction. The length of the side plate portions 44 in the Y-axis direction is the same as the length of the standing plate portions 45 in the Y-axis direction.

[0080] 3 and 6, in this embodiment, the protrusion amount (length in the Z-axis direction) of the side plate portions 44 is greater than the protrusion amount (length in the Z-axis direction) of the standing plate portions 45. In other words, the protrusion amount of the standing plate portions 45 is smaller than the protrusion amount of the side plate portions 44. Furthermore, in this embodiment, the protrusion amounts of the side plate portions 44 and the standing plate portions 45 are each constant over the entire longitudinal length of the frame 40. Therefore, the protrusion amount of the side plate portions 44 is greater than the protrusion amount of the standing plate portions 45 over the entire longitudinal length of the frame 40.

[0081] The cover member 30 is attached to the side plate portion 44 and the standing plate portion 45. Specifically, a first attachment portion 321 of the cover member 30 is attached to the side plate portion 44, and a second attachment portion 322 of the cover member 30 is attached to the standing plate portion 45.

[0082] As shown in FIGS. 6 and 7 , the tip of the side plate portion 44 is provided with a bent portion 44a that is curled outward. When fixing the cover member 30 to the frame 40, the bent portion 44a of the side plate portion 44 is snapped into and fitted into the recess 321a provided in the first mounting portion 321 of the cover member 30, and the upright portion 45 of the frame 40 is sandwiched between the extension piece 33 and the locking piece 34 provided in the second mounting portion 322 of the cover member 30. In this embodiment, as shown in FIG. 3 , the cover member 30 and the frame 40 are further fixed together with a mounting screw 71. The mounting screw 71 is screwed into the cover member 30 from the outside of the side. In this case, the cover member 30 and the frame 40 may be fixed together by crimping the frame 40 without using the mounting screw 71.

[0083] In the frame 40 configured in this manner, as described above, the first main plate portion 41 and the second main plate portion 42 are positioned at different heights, so that a step is formed between the first main plate portion 41 and the second main plate portion 42.

[0084] As shown in Fig. 3, this step forms a recess 46 on the front side (floor side) of the second main plate portion 42. In other words, the second main plate portion 42 forms the bottom of the recess 46, and the recess 46 is recessed toward the rear side (ceiling side). In this embodiment, the connecting plate portion 43 and the standing plate portion 45 are erected on the second main plate portion 42, and the recess 46 is a spatial region surrounded on three sides by the connecting plate portion 43, the second main plate portion 42, and the standing plate portion 45. As an example, the cross-sectional shape of the recess 46 is rectangular.

[0085] 8, the recess 46 extends linearly along the longitudinal direction (Y-axis direction) of the frame 40. Therefore, the recess 46 is a linear groove. Note that a packing is disposed at each of both longitudinal ends of the recess 46.

[0086] Components constituting the LED lighting device 3 are arranged in the recess 46. As shown in Figs. 3 and 8, functional components 60 related to lighting the LEDs 20 are arranged in the recess 46 as components constituting the LED lighting device 3. In other words, the functional components 60 are housed in the recess 46. As shown in Fig. 8, the functional components 60 are arranged at the longitudinal ends of the frame 40, but this is not limitative.

[0087] Specifically, the functional component 60 is a function expansion module. The function expansion module may be, for example, a sensor unit equipped with various sensors, such as a motion sensor or a brightness sensor; a wireless module having an antenna and a control circuit for receiving wireless signals; an infrared module having a light-receiving element and a control circuit for receiving infrared signals; or a second light source separate from the LED 20 (first light source) mounted on the substrate 10. The wireless signal or infrared signal may be, for example, a remote control signal for turning the LED 20 on and off or adjusting the brightness and color of the LED 20, or a setting signal for configuring various settings of the LED lighting device 3. The second light source may be a light source for monitor display, a light source for controlling the light distribution of the illumination light emitted from the cover member 30 (e.g., a light source for achieving a wide light distribution), a color light source for creating effects (e.g., red, blue, and green LED light sources), or an emergency light source that is turned on in an emergency. When an emergency light source is used as the second light source, the cover covering the second light source and / or the cover member 30 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.

[0088] The functional component 60 includes 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.

[0089] 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 a mounting screw 72. Figure 9 is a cross-sectional view of the LED lighting device 1 cut along the XZ cross section passing through the mounting screw 72.

[0090] In this way, by disposing 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 the mounting screw 72, the head of the mounting screw 72 is stored in the recess 46, so the head of the mounting screw 72 can be prevented from protruding forward of the substrate 10 on which the LED 20 is disposed. This prevents the head of the mounting screw 72 from protruding forward of the substrate 10 and blocking the light of the LED 20. Therefore, deterioration of the light distribution characteristics of the LED lighting device 3 can be prevented.

[0091] 3, the cover member 30 and the frame 40 are fixed together by a mounting screw 71 that is screwed in from the outside of the side of the cover member 30. In this case, the mounting screw 71 is screwed in from the outer surface of the mounting portion 32 of the cover member 30, and fixes the mounting portion 32 of the cover member 30 to the upright portion 45 of the frame 40. As a result, the screw head of the mounting screw 71 is housed in the recess 46. Therefore, it is possible to prevent the mounting screw 71 from blocking the light from the LED 20.

[0092] 8, the functional component 60 and the power supply device 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 disposed in the recess 46 together with the functional component 60. In other words, the conductive wire 81 is housed in the recess 46.

[0093] One end of the conductive wire 81 is connected to an electrode or connector terminal of 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 of the circuit board 4a of the power supply device 4. In this embodiment, the conductive wire 81 drawn out from the substrate 61 of the functional component 60 passes through the recess 46, 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 of the circuit board 4a of the power supply device 4.

[0094] In this way, by storing the conductive wire 81 in the recess 46, the conductive wire 81 can be easily routed. In other words, it is easy to wire the conductive wire 81. Furthermore, by storing the conductive wire 81 in the recess 46, it is possible to prevent the conductive wire 81 from being caught between the LED lighting device 3 and the fixture body 2 when attaching the LED lighting device 3 to the fixture body 2.

[0095] In FIG. 9 , the substrate 61 is fixed to the second main plate 42 by screwing the mounting screw 72 into the substrate 61 from the front side of the substrate 10 placed on the second main plate 42 in the recess 46. However, as shown in FIG. 10 , the substrate 61 may be fixed to the second main plate 42 by screwing the mounting screw 72 from the rear side of the second main plate 42. In this case, the threaded shaft of the mounting screw 72 is housed in the recess 46, so the threaded shaft of the mounting screw 72 is prevented from protruding forward of the substrate 10. This prevents the threaded shaft of the mounting screw 72 from protruding forward of the substrate 10 and blocking light from the LEDs 20. Furthermore, the substrate 61 may be fixed to the second main plate 42 by a mounting structure such as crimping instead of the mounting screw 72. In this case, the mounting structure is housed in the recess 46, so the mounting structure is also prevented from blocking light from the LEDs 20.

[0096] 11, the circuit case 4c of the power supply device 4 is fixed to the second main plate portion 42 of the frame 40 by a mounting screw 73. In this case, the threaded shaft of the mounting screw 73 is housed in the recess 46, so that the threaded shaft of the mounting screw 73 can be prevented from protruding forward of the substrate 10. This prevents the threaded shaft of the mounting screw 73 from protruding forward of the substrate 10 and blocking the light from the LED 20.

[0097] 12, in the present embodiment, the retaining fitting 6c for holding the elastic retaining member 6 on the frame 40 is fixed to the second main plate portion 42 of the frame 40 by the mounting screw 74. In this case as well, the threaded shaft of the mounting screw 74 is housed in the recess 46, so the threaded shaft of the mounting screw 74 can be prevented from protruding forward of the substrate 10. This makes it possible to prevent the threaded shaft of the mounting screw 74 from protruding forward of the substrate 10 and blocking the light from the LED 20.

[0098] 13, a terminal block may be disposed in the recess 46 as a functional component 60A. The terminal block is, for example, a dimming terminal block that receives a dimming signal from a dimmer. Note that a power supply terminal block 8 (see FIG. 2) may be disposed in the recess 46 as the functional component 60A. By storing the terminal block in the recess 46 in this way, it is no longer necessary to place the terminal block on the rear side (ceiling side) of the frame 40, and space can be secured on the rear side of the frame 40. Conductive wires are also connected to the functional component 60A, and these conductive wires should also be stored in the recess 46.

[0099] 14, when two substrates 10 are electrically connected by a conductive wire 82 such as a connector wire, the conductive wire 82 may be disposed in the recess 46. This prevents the conductive wire 82 from being disposed on the substrate 10, thereby preventing the conductive wire 82 from blocking light from the LED 20. This prevents deterioration of the light distribution characteristics of the LED lighting device 3. The conductive wire 82, which is a connector wire, is connected to a connector terminal mounted on the substrate 10.

[0100] In this way, by providing recesses 46 in frame 40, functional components 60 and 60A can be stored in recesses 46, and conductive wires 81 connected to functional components 60 and 60A or conductive wires 82 connected to substrate 10 can be stored in recesses 46.

[0101] Furthermore, the frame 40 is formed with not only the 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 forms the bottom of the recess 47, and the recess 47 is recessed toward the front side (floor side). In this embodiment, the side plate portion 44 and the connecting plate portion 43 are erected on the first main plate portion 41, and the recess 47 is a spatial region surrounded on three sides by the side plate portion 44, the first main plate portion 41, and the connecting plate portion 43. As an example, the cross-sectional shape of the recess 47 is rectangular.

[0102] The power supply device 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 device 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 device 4 is disposed between the connecting plate portion 43 and the side plate portion 44 of the frame 40.

[0103] The power supply device 4 arranged in the recess 47 is disposed on the rear side (ceiling side) of the first main plate portion 41. In this case, since the first main plate portion 41 is located on the side plate portion 44 side of the frame 40, the power supply device 4 is disposed close to the side plate portion 44 side.

[0104] 3, in the recess 2a of the fixture body 2, there is also a space area on the rear side (ceiling side) of the second main plate portion 42. The elastic holding member 6 is disposed using this space area formed on the rear side of the second main plate portion 42.

[0105] A long cylindrical body is formed by fixing the cover member 30 and the frame 40. As shown in Figures 1 to 5, end caps 50 are attached to both ends in the longitudinal direction of the cylindrical body formed by the cover member 30 and the frame 40.

[0106] In this embodiment, the end cap 50 is provided to close the open end of the cylindrical body formed by 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 formed by the cover member 30 and the frame 40, closing the open end of the cylindrical body. This makes it possible to prevent dust, insects, etc. from entering the inside of the cylindrical body formed by the cover member 30 and the frame 40. Note that the end cap 50 may not completely close the open end of the cylindrical body formed by the cover member 30 and the frame 40, and there may be a small gap between the end cap 50 and the frame 40.

[0107] The end caps 50 are provided at both 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.

[0108] The end cap 50 is made of a resin material. The end cap 50 may or may not be translucent. A translucent end cap 50 is made of a transparent resin material such as polycarbonate or acrylic. The end cap 50 may be translucent and diffusive. In this case, the end cap 50 may be made of the same material as the cover member 30, or may be made of a different material from the cover member 30.

[0109] The LED lighting device 3 configured as described above 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 a hook 5 and an elastic holding member 6 shown in Figs. 3 to 5. The hook 5 and the elastic holding member 6 are fixed to a frame 40.

[0110] As shown in FIG. 3, the hook fitting 5 is disposed on the rear side (ceiling side) of the first main plate portion 41 of the frame 40. The hook fitting 5 is a plate member made of sheet metal. The hook fitting 5 is fixed to one end of the frame 40 in the short direction. In this embodiment, the hook fitting 5 is fixed to the first main plate portion 41 of the frame 40. As an example, the hook fitting 5 is fixed to the first main plate portion 41 with a fixing member such as a screw, and extends so as to protrude outward from the side plate portion 44 of the frame 40. The hook fitting 5 is hooked onto the fixture main body 2. In this embodiment, a slit 2c (see FIG. 2) is provided on the inner wall surface of the recess 2a of the fixture main body 2, and the hook fitting 5 is hooked onto this slit 2c.

[0111] The elastic retaining member 6 is disposed 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 other end of the frame 40 in the short direction. In other words, the elastic retaining member 6 is fixed to the opposite side of the frame 40 from the hook fitting 5 in the width direction. In this embodiment, the elastic retaining member 6 is provided on the second main plate portion 42 side (upright plate portion 45 side) of the frame 40. The elastic retaining member 6 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 the retaining fitting 6c fixed to the second main plate portion 42 of the frame 40 by the mounting screw 74. The elastic retaining member 6 is detachably attached to the appliance main body 2. In this embodiment, the elastic retaining member 6 is detachably engaged with the receiving fitting 7 fixed to the appliance main body 2.

[0112] 2, two each of the hooking fittings 5 ​​and the elastic holding members 6 are provided, but this is not limited to this. Also, the hooking fittings 5 ​​and the elastic holding members 6 are provided at positions facing each other in the short-side direction of the frame 40, but this is not limited to this.

[0113] Here, a method for attaching the LED lighting device 3 to the fixture body 2 will be described with reference to Fig. 15. Fig. 15 is a diagram for explaining a method for attaching the LED lighting device 3 to the fixture body 2 in the LED lighting fixture 1 according to embodiment 1.

[0114] When attaching the LED lighting device 3 to the fixture body 2 installed on the ceiling 100, first, as shown in (a) of Figure 15, the LED lighting device 3 is hung 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 holding member 6, which is a kick spring, is engaged with the receiving fitting 7 fixed to the fixture body 2.

[0115] In this case, the elastic holding member 6 is disposed in a rear portion of the second main plate portion 42, which has a small protrusion amount in the Z-axis direction in the frame 40. This means that a large portion of the elastic holding member 6 is exposed when the LED lighting device 3 is viewed from the side, making it easy to pull out a part of the elastic holding member 6 (specifically, the end of the kick spring).

[0116] 15(b), the LED lighting device 3 is rotated around the hook 5 as a fulcrum while the hook 5 is pushed deep into the slit 2c, thereby pushing the LED lighting device 3 up into the recess 2a of the fixture body 2. In this embodiment, the hook 5 is disposed on the first main plate 41 side (side plate 44 side) of the frame 40, so that the first main plate 41 side of the LED lighting device 3 becomes the rotation axis side in the short direction (X-axis direction) of the frame 40. When the LED lighting device 3 is rotated, the rotation axis is parallel to the longitudinal direction (Y-axis direction) of the LED lighting device 3.

[0117] Then, by rotating the LED lighting device 3 so that the first main plate portion 41 faces the rotation axis and pushing the LED lighting device 3 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 (c) of Figure 15. In this way, the LED lighting device 3 can be attached to the fixture body 2.

[0118] In this way, by attaching the LED lighting device 3 to the fixture body 2 by rotating it so that the first main plate portion 41 side is on the rotation axis side, when the LED lighting device 3 is rotated, the part of the LED lighting device 3 on the side of the second main plate portion 42, which has a smaller protrusion amount (shorter length in the Z-axis direction), approaches the fixture body 2, so it is possible to prevent the locking piece 34 or the second mounting portion 322 of the cover member 30 from hitting the fixture body 2 and causing damage to unintended locations. Therefore, the LED lighting device 3 can be easily attached to the fixture body 2, and the installability of the LED lighting fixture 1 can be improved.

[0119] Furthermore, when the LED lighting device 3 is rotated and attached to the fixture body 2 as in this embodiment, the power supply device 4 is preferably disposed closer to the first main plate portion 41, which has a larger protrusion amount (longer length in the Z-axis direction). In other words, the power supply device 4 is preferably disposed closer to the rotation axis.

[0120] In this way, by placing the heavy power supply device 4 close to the rotation axis, it is possible to rotate the LED lighting device 3 with a small force. Therefore, the installation work of the LED lighting device 3 to the fixture body 2 can be easily performed.

[0121] As described above, in the LED lighting device 3 and the LED lighting fixture 1 according to this embodiment, the first main plate portion 41 and the second main plate portion 42 in the frame 40 are located at different heights. Specifically, the second main plate portion 42 is located further rearward than the first main plate portion 41. As a result, a recess 46 is formed in the frame 40 on the front side of the second main plate portion 42 due to the difference in height between the first main plate portion 41 and the second main plate portion 42.

[0122] With this configuration, the functional components 60 and 60A can be disposed in the recess 46 of the frame 40. This allows the functional components 60 and 60A to be disposed on the front side of the frame 40 without deteriorating the light distribution characteristics. Furthermore, as described above, components constituting the LED lighting device 3 other than the functional components 60 and 60A can also be disposed in the recess 46 of the frame 40.

[0123] When the functional component 60 or 60A is disposed in the recess 46, the width of the recess 46 (the length in the short direction of the second main plate portion 42) only needs to be at least about 10 mm. When a conductive wire is disposed in the recess 46, the width of the recess 46 (the length in the short direction of the second main plate portion 42) only needs to be at least about 2 mm.

[0124] (Embodiment 2) Next, a second embodiment will be described with reference to Fig. 16. Fig. 16 is a cross-sectional view of an LED lighting fixture 1A and an LED lighting device 3A according to the second embodiment.

[0125] The LED lighting fixture 1A and the LED lighting device 3A according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the way in which the power supply device 4 and the functional component 60 are electrically connected.

[0126] In the above-mentioned embodiment 1, the power supply device 4 and the functional component 60 were electrically connected by a conductive wire 81, but in the present embodiment, as shown in FIG. 16, the power supply device 4 and the functional component 60 are electrically connected without using a conductive wire 81.

[0127] 16 , in this embodiment, a connector terminal 4d is mounted on the circuit board 4a of the power supply device 4 arranged in the recess 47, and the connector terminal 4d protrudes into the recess 46. In this case, a portion of the connector terminal 4d is inserted into, for example, a through-hole provided in the connecting plate portion 43 of the frame 40, thereby protruding into the recess 46. In other words, the connector terminal 4d is exposed in the recess 46.

[0128] The connector terminals 4d exposed in the recesses 46 and the electrodes or connector terminals of the substrate 61 of the functional component 60 are electrically connected by conductive wires (not shown) such as connector wires.

[0129] In this embodiment, the power supply device 4 and the functional component 60 are disposed adjacent to each other with the connecting plate portion 43 interposed therebetween.

[0130] As described above, in the LED lighting fixture 1A and the LED lighting device 3A according to this embodiment, the second main plate portion 42 of the frame 40 is located rearward of the first main plate portion 41, and a recess 46 is formed in the frame 40.

[0131] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40 without deteriorating the light distribution characteristics.

[0132] In the present embodiment, the connector terminal 4d protrudes into the recess 46, but this is not limiting. That is, the connector terminal 4d may be configured so that only the end face of the connector terminal 4d is exposed to the recess 46 from the through hole without being inserted into the through hole provided in the connecting plate portion 43.

[0133] 16, only the connector terminals 4d mounted on the circuit board 4a protrude into the recess 46, but as shown in FIG. 17, not only the connector terminals 4d but also the circuit board 4a may protrude into the recess 46.

[0134] (Embodiment 3) Next, a third embodiment will be described with reference to Fig. 18. Fig. 18 is a cross-sectional view of an LED lighting device 1B according to the third embodiment.

[0135] An LED lighting fixture 1B and an LED lighting device 3B according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the configuration of a cover member 30B.

[0136] 18 , in the cover member 30B of the present embodiment, the width (length in the X-axis direction) of the pair of extension pieces 33B of the extension piece 33B on the second mounting portion 322 side is larger than the width of the extension piece 33B on the second mounting portion 322 side in the above-described first embodiment. In the present embodiment, the extension piece 33B on the second mounting portion 322 side covers the entire second main plate portion 42 of the frame 40. Therefore, the extension piece 33B on the second mounting portion 322 side covers the functional component 60 arranged in the recess 46.

[0137] Furthermore, the pair of extension pieces 33B in the present embodiment are made of a different material than the pair of mounting portions 32 in the first embodiment. Note that the cover main body 31, mounting portions 32, and locking pieces 34 are made of the same material in the cover member 30B in the present embodiment as in the cover member 30 in the first embodiment. Therefore, the cover member 30B in the present embodiment is formed from two types of resin material: a first resin material that forms the cover main body 31, mounting portions 32, and locking pieces 34, and a second resin material that forms the pair of extension pieces 33B. In this case, the cover member 30B can be formed by two-color molding.

[0138] The first resin material constituting the cover main body 31, the mounting portion 32, and the locking piece 34 is made of the same translucent resin material as the cover member 30 in the first embodiment. The second resin material constituting the pair of extension pieces 33B may be made of either a translucent resin material or a non-translucent material. However, if the pair of extension pieces 33B is made of a non-translucent material, a white resin material, for example, can be used as the non-translucent material. This allows the extension pieces 33B to reflect the light from the LEDs 20 that reaches the extension pieces 33B. Furthermore, if the functional component 60 is a sensor unit that receives light such as infrared light and the pair of extension pieces 33B is made of a non-translucent material, it is preferable to provide through holes in the extension pieces 33B covering the functional component 60 to allow light to pass through. Note that even if the pair of extension pieces 33B is made of a translucent resin material, the extension pieces 33B may be thinner than other portions to improve the light receiving sensitivity of the sensor unit.

[0139] As described above, in the LED lighting fixture 1B and the LED lighting device 3B according to this embodiment, the second main plate portion 42 of the frame 40 is located rearward of the first main plate portion 41, and a recess 46 is formed in the frame 40.

[0140] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40 without deteriorating the light distribution characteristics.

[0141] As shown in FIG. 18, in this embodiment, the bent portion having an L-shaped cross section is formed at the tip of the extension piece 33B that covers the functional component 60, but the present invention is not limited to this.

[0142] For example, like a cover member 30Bα in an LED lighting fixture 1Bα and an LED lighting device 3Bα shown in FIG. 19, the tip of an extension piece 33B that covers a functional component 60 does not need to have a bent portion.

[0143] 19, the XZ cross section of the protrusion 31a of the cover body 31 is V-shaped, and the ceiling side of the protrusion 31a is formed to be flush with the extension piece 33B. This eliminates recesses (insect pockets) in the protrusion 31a where dead insects and foreign matter can accumulate.

[0144] In addition, in the cover member 30Bα in Figure 19, the mounting portion 32B, the extension piece 33B, and the locking piece 34B are made of the same resin material, and the resin material making up the mounting portion 32B, the extension piece 33B, and the locking piece 34B is different from the resin material making up the cover main body portion 31.

[0145] 20, the width of the extension piece 33Bβ that covers the functional component 60 may be increased so that the extension piece 33Bβ reaches the substrate 10, and a pressing portion 33Ba that presses the substrate 10 may be formed at the tip of the extension piece 33Bβ. This allows the cover member 30Bβ to hold the substrate 10 (LED module) on which the LEDs 20 are mounted.

[0146] (Fourth embodiment) Next, a fourth embodiment will be described with reference to Fig. 21. Fig. 21 is a cross-sectional view of an LED lighting device 1C according to the fourth embodiment.

[0147] The LED lighting fixture 1C and the LED lighting device 3C according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the mounting position of the mounting screw 71 that fixes the cover member 30 and the frame 40 together.

[0148] In the first embodiment described above, the mounting screws 71 for fixing the cover member 30 and the frame 40 are screwed in from the outside of the side of the cover member 30, as shown in Fig. 3. Specifically, the mounting screws 71 are screwed in from the outer surface of the mounting portion 32 of the cover member 30, and the mounting portion 32 of the cover member 30 and the upright portion 45 of the frame 40 are fixed by the mounting screws 71.

[0149] In contrast to this, in the present embodiment, the mounting screws 71 that secure the cover member 30 and the frame 40 are screwed in from the outside (from the ceiling side) at the rear of the cover member 30, as shown in Fig. 21. Specifically, the mounting screws 71 are screwed in from the outer surfaces of the locking pieces 34 of the cover member 30, and the locking pieces 34 of the cover member 30 and the second main plate portion 42 of the frame 40 are secured together by the mounting screws 71. As a result, the threaded shafts of the mounting screws 71 are housed in the recesses 46.

[0150] As described above, in the LED lighting fixture 1C and the LED lighting device 3C according to this embodiment, the second main plate portion 42 of the frame 40 is located rearward of the first main plate portion 41, and a recess 46 is formed in the frame 40.

[0151] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40 without deteriorating the light distribution characteristics.

[0152] Furthermore, in this embodiment, the threaded shaft of the mounting screw 71 is housed in the recess 46. This prevents the threaded shaft of the mounting screw 71 from protruding forward of the substrate 10, thereby preventing the threaded shaft of the mounting screw 71 from protruding forward of the substrate 10 and blocking the light from the LED 20. This prevents the light distribution characteristics of the LED lighting device 3C from deteriorating. The mounting screw 71 may be screwed in from the second main plate portion 42 toward the locking piece 34. In this case, the head of the mounting screw 71 is housed in the recess 46.

[0153] Furthermore, in the above-described first and present embodiments, the cover member 30 and the frame 40 are fixed to each other by the mounting screws 71, but this is not limiting. For example, as shown in FIG. 22 , the cover member 30 and the frame 40 may be fixed to each other without using the mounting screws 71. In this case, the second mounting portion 322 of the cover member 30C and the standing plate portion 45 of the frame 40 may be fixed to each other by caulking or the like. Furthermore, as shown in FIG. 22 , the locking piece 34 may not be formed on the cover member 30C. In other words, the standing plate portion 45 of the frame 40 does not have to be sandwiched between the extension piece 33 and the locking piece 34.

[0154] (Embodiment 5) Next, a fifth embodiment will be described with reference to Fig. 23. Fig. 23 is a cross-sectional view of an LED lighting device 1D according to the fifth embodiment.

[0155] An LED lighting fixture 1D and an LED lighting device 3D according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the shape of a cover member 30D.

[0156] 23, in an LED lighting device 3D according to this embodiment, a cover member 30D does not have a locking piece 34, and the second mounting portion 322D of the pair of mounting portions 32 has a shape in which the protrusion amount (length in the Z-axis direction) is increased. Therefore, like the first mounting portion 321, the second mounting portion 322D has a shape that stands upright toward the ceiling, and forms a pair of legs together with the first mounting portion 321. This configuration can improve the strength of the LED lighting device 3D.

[0157] As described above, in the LED lighting fixture 1D and the LED lighting device 3D according to this embodiment, the second main plate portion 42 of the frame 40 is located rearward of the first main plate portion 41, and a recess 46 is formed in the frame 40.

[0158] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40 without deteriorating the light distribution characteristics.

[0159] 23, the second mounting portion 322D of the cover member 30D is not bent. However, as shown in the LED lighting fixture 1Dα and the LED lighting device 3Dα in FIG. 24, the second mounting portion 322Dα of the cover member 30Dα may be bent. In this case, it is preferable to bend the tip of the second mounting portion 322Dα so that it faces inward, thereby forming an inclined portion in the second mounting portion 322Dα. This makes it easy to attach and detach the LED lighting device 3Dα to and from the fixture body 2 by rotating the LED lighting device 3Dα around the first main plate 41 side (side plate 44 side) as the rotation axis, as shown in FIG.

[0160] In this case, the position of the bent portion of the second mounting portion 322Dα is not limited to the embodiment shown in Fig. 24. For example, as shown in an LED lighting fixture 1Dβ and an LED lighting device 3Dβ shown in Fig. 25, the position of the bent portion of the second mounting portion 322Dβ of the cover member 30Dβ 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 3Dβ.

[0161] (Embodiment 6) Next, a sixth embodiment will be described with reference to Fig. 26. Fig. 26 is a cross-sectional view of an LED lighting device 1E according to the sixth embodiment.

[0162] An LED lighting fixture 1E and an LED lighting device 3E according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the shapes of a cover member 30E and a frame 40E.

[0163] Specifically, in the LED lighting device 3E according to this embodiment, the heights of both ends in the width direction of the cover member 30E are the same. In other words, the protrusion amounts (lengths in the Z-axis direction) of the pair of mounting portions 32 of the cover member 30E are the same. Specifically, the protrusion amounts of the first mounting portion 321E and the second mounting portion 322 are the same.

[0164] In the LED lighting device 3E according to this embodiment, the heights of both widthwise ends of the frame 40E are the same. Specifically, the length in the Z-axis direction of the side plate portion 44E and the length in the Z-axis direction of the standing plate portion 45 are the same.

[0165] As described above, in this embodiment, the cover member 30E and the frame 40E have the same height at both ends in the width direction. As a result, the distance (height) between both ends of the cover member 30E and the bottom surface of the recess 2a of the appliance body 2 is the same on the left and right, which increases the degree of freedom in the layout of components to be placed in the spatial region between the frame 40E and the recess 2a.

[0166] Furthermore, when the heights of both ends of the cover member 30E and both ends of the frame 40E are to be the same on the left and right, it is advisable to use a cover member 30E' that is symmetrical, as shown in Fig. 27. This eliminates the need for left-right directionality of the cover member 30E relative to the frame 40E, making it possible to easily attach the cover member 30E to the frame 40E.

[0167] As described above, in the LED lighting fixture 1E and the LED lighting device 3E according to this embodiment, the second main plate portion 42 of the frame 40E is located rearward of the first main plate portion 41, and a recess 46 is formed in the frame 40E.

[0168] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40E. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40E without deteriorating the light distribution characteristics.

[0169] (Embodiment 7) Next, the seventh embodiment will be described with reference to Fig. 28. Fig. 28 is a cross-sectional view of an LED lighting device 1F according to the seventh embodiment.

[0170] An LED lighting fixture 1F and an LED lighting device 3F according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the shape of a frame 40F.

[0171] Specifically, compared to frame 40 in the first embodiment, frame 40F in the present embodiment further includes a front plate portion 48. Front plate portion 48 is connected to the front end of upright plate portion 45 and faces second main plate portion 42.

[0172] In the present embodiment, the front plate portion 48 stands on the standing plate portion 45 and extends in the X-axis direction. That is, the front plate portion 48 is parallel to the second main plate portion 42. In addition, the front plate portion 48 is located at the same height as the first main plate portion 41.

[0173] The front plate portion 48 is formed integrally with the standing plate portion 45. Specifically, also in the present embodiment, the frame 40F is formed into a predetermined shape by performing a bending process or the like on a single piece of metal sheet.

[0174] The front plate 48 covers the functional component 60. Therefore, if the functional component 60 is a sensor unit or the like that receives light such as infrared light, the front plate 48 that covers the functional component 60 may be provided with a through-hole to allow light to pass through. Note that the front plate 48 may extend from the end of the standing plate 45 so as not to cover the light receiving portion of the functional component 60.

[0175] As described above, in the LED lighting fixture 1F and the LED lighting device 3F according to this embodiment, the second main plate portion 42 of the frame 40F is located rearward of the first main plate portion 41, and a recess 46 is formed in the frame 40F.

[0176] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40F. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40F without deteriorating the light distribution characteristics.

[0177] In the LED lighting device 3F of this embodiment, the frame 40F has a front plate portion .

[0178] With this configuration, the light from the LEDs 20 can be reflected by the front plate portion 48, so that darkness caused by the recessed portion 46 formed in the frame 40 can be reduced.

[0179] (Embodiment 8) Next, the eighth embodiment will be described with reference to Fig. 29. Fig. 29 is a cross-sectional view of an LED lighting device 1G according to the eighth embodiment.

[0180] An LED lighting fixture 1G and an LED lighting device 3G according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the shape of a frame 40G.

[0181] Specifically, second main plate portion 42G of frame 40G in the present embodiment has a larger width (length in the X-axis direction) than second main plate portion 42 of frame 40 in the first embodiment. Specifically, the width of second main plate portion 42 is increased to the extent that connecting plate portion 43 of frame 40G is positioned on the rear side of substrate 10. As a result, the end portion of substrate 10 on the side of standing plate portion 45 protrudes into recess 46, and substrate 10 covers a portion of recess 46.

[0182] In this way, by increasing the width of the second main plate portion 42G, the width of the recess 46 formed in the frame 40G also increases, thereby making it possible to increase the spatial region (space) inside the recess 46.

[0183] As described above, in the LED lighting fixture 1G and the LED lighting device 3G according to this embodiment, the second main plate portion 42G of the frame 40G is located rearward of the first main plate portion 41, and a recess 46 is formed in the frame 40G.

[0184] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40G. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40G without deteriorating the light distribution characteristics.

[0185] Note that, when the position of the connecting plate 43 is changed and the width of the second main plate 42G is increased, as in the present embodiment, the gap between the connecting plate 43 and the side plate 44 becomes narrower. In this regard, although the width of the circuit case 4c of the power supply device 4 is not changed in the present embodiment as shown in Fig. 29, this is not limited to this. Specifically, as in an LED lighting fixture 1H and an LED lighting device 3H shown in Fig. 30, the width of the second main plate 42G is increased to narrow the gap between the connecting plate 43 and the side plate 44, and the width of the circuit case 4cH of the power supply device 4H may be narrowed accordingly, so that the power supply device 4H can be housed between the connecting plate 43 and the side plate 44.

[0186] Furthermore, instead of increasing the width of the second main plate portion 42G as in the present embodiment, the position of the connecting plate portion 43 in the frame 40I may be changed so as to be closer to the standing plate portion 45, thereby reducing the width of the second main plate portion 42I, as in an LED lighting fixture 1I and an LED lighting device 3I shown in Fig. 31. In this case, the spatial area of ​​the recessed portion 46 in the frame 40I can be narrowed, thereby suppressing darkness caused by the recessed portion 46.

[0187] (Embodiment 9) Next, the ninth embodiment will be described with reference to Fig. 32. Fig. 32 is a cross-sectional view of an LED lighting device 1J according to the ninth embodiment.

[0188] The LED lighting fixture 1J and the LED lighting device 3J according to this embodiment differ from the LED lighting fixture 1 and the LED lighting device 3 according to the first embodiment in the shape of a frame 40J.

[0189] Specifically, in the frame 40J of the present embodiment, a recess 41b is formed in the first main plate portion 41J. The recess 41b is formed so as to be recessed toward the rear side. The substrate 10 on which the LEDs 20 are arranged is disposed in this recess 41b. The recess 41b is formed over the entire length of the first main plate portion 41J in the longitudinal direction. Furthermore, the depth of the recess 41b is preferably greater than the total thickness of the substrate 10 and the LEDs 20, but is not limited to this.

[0190] As described above, in the LED lighting fixture 1J and the LED lighting device 3J according to this embodiment, the second main plate portion 42 of the frame 40J is located rearward of the first main plate portion 41J, and a recess 46 is formed in the frame 40J.

[0191] This allows the functional components 60 and the like to be disposed in the recessed portion 46 of the frame 40J. Therefore, the functional components 60 and the like can be disposed on the front side of the frame 40J without deteriorating the light distribution characteristics.

[0192] In this embodiment, as in the first embodiment, the second main plate portion 42 of the frame 40J has a main surface formed parallel to the X-axis direction. However, as in the frame 40K of the LED lighting fixture 1K and the LED lighting device 3K shown in FIG. 33, the second main plate portion 42K may be formed so that its main surface intersects with the X-axis direction. Specifically, the second main plate portion 42K may be formed so as to be inclined. Furthermore, in the frame 40K of this modification, the connecting plate portion 43K is also inclined. The structure shown in FIG. 33 can also be applied to the other embodiments.

[0193] Also, like a frame 40L in an LED lighting fixture 1L and an LED lighting device 3L shown in FIG. 34, the connecting plate portion 43 may be brought closer to the standing plate portion 45 to narrow the width of the second main plate portion 42L.

[0194] In addition, in Figure 32, by forming a recess 41b in the first main board portion 41J, an inclined portion is formed on both sides of the substrate 10 in the first main board portion 41J, but as in the frame 40M in the LED lighting fixture 1M and LED lighting device 3M shown in Figure 35, a recess 41b may be formed in the first main board portion 41M so that an inclined portion exists only on the side plate portion 44 side of both sides of the substrate 10 in the first main board portion 41M.

[0195] (Variation) The LED lighting fixture and LED lighting device according to the present invention have been described above based on the first to ninth embodiments, but the present invention is not limited to these first to ninth embodiments.

[0196] For example, in the first embodiment and other embodiments, the entire substrate 10 contacts the metal portion of the first main plate 41 of the frame 40. However, this is not limited to this. Specifically, as in the LED lighting fixture 1N and LED lighting device 3N shown in FIG. 36, an opening 41c may be formed in the first main plate 41N of the frame 40N, and a portion of the second surface 10b of the substrate 10 may be exposed through the opening 41c of the frame 40N. In this case, instead of contacting the second surface 10b of the substrate 10 with the outer surface of the first main plate 41N of the frame 40N, as in the LED lighting fixture 1O and LED lighting device 3O shown in FIG. 37, the first surface 10a of the substrate 10 may contact the inner surface of the first main plate 41N of the frame 40N. In other words, the substrate 10 may be disposed inside the frame 40N rather than outside. Furthermore, when the substrate 10 is disposed inside the frame 40N, a separate support member 91 for supporting the substrate 10 may be disposed, as in the LED lighting fixture 1P and LED lighting device 3P shown in FIG. 38. The frame 40N having the first main plate portion 41N with the openings 41c formed therein may have the configuration shown in Fig. 39. In the frame 40N shown in Fig. 39, three openings 41c are formed in the first main plate portion 41N, but this is not limiting. The frame 40N may also be made up of two parts separated into two halves on the left and right (in the short direction).

[0197] 40, the frame 40Q may further include a support member 49 for supporting the substrate 10. The support member 49 supports the substrate 10 by pressing down on both ends of the substrate 10 in the short side direction from above.

[0198] In this case, as in an LED lighting fixture 1R and an LED lighting device 3R shown in FIG. 41, a pressing portion 33Ra may be formed at the tip of an extension piece 33R of a cover member 30R, and the support member 49 may be pressed down by this pressing portion 33Ra.

[0199] Furthermore, in the above-described first embodiment and the like, the substrate 10 is fixed to the frame 40 by the claws 41a provided on the first main plate portion 41 of the frame 40, but this is not limited thereto. For example, as in an LED lighting fixture 1S and an LED lighting device 3S shown in FIG. 42 , the substrate 10 and the first main plate portion 41 of the frame 40 may be fixed with an adhesive 92. The adhesive 92 is inserted between the substrate 10 and the first main plate portion 41.

[0200] Furthermore, in the above-described first embodiment and the like, the locking pieces 34 of the cover member 30 extend in a direction parallel to the first surface 10a of the substrate 10, but the locking pieces 34 do not have to be parallel to the first surface 10a of the substrate 10. For example, as in an LED lighting fixture 1T and an LED lighting device 3T shown in FIG. 43 , the locking pieces 34T of the cover member 30T may be formed so as to bend at an acute angle from the mounting portion 32 toward the second main surface portion 42.

[0201] Furthermore, in the first embodiment, the substrate 61 of the functional component 60 is directly attached to the frame 40 as a single component. However, this is not limiting. For example, as in the LED lighting fixture 1U and the LED lighting device 3U shown in FIG. 44 , the substrate 61 of the functional component 60U may be attached to the frame 40 via a resin member or an insulating member. Specifically, as shown in FIG. 44 , the functional component 60U may have a case 63 made of an insulating resin material. The substrate 61 is disposed on the inner surface of the case 63. This allows the 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. Although the screw 72 secures both the case 63 and the substrate 61 to the frame 40, only the case 61 may be secured to the frame 40. In this case, the substrate 61 is secured to the case 63. Furthermore, as shown in FIG. 44 , the functional component 60U may further have a lid 64 covering the case 63. The material of the lid 64 may be either a light-transmitting material or a non-light-transmitting material, but if the lid 64 is made of a non-light-transmitting material, the lid 64 may be made of, for example, a white resin material so as to reflect light. In this case, the lid 64 may be provided with a through-hole so that light received by the functional component 60U or light emitted by the functional component 60 can pass through.

[0202] 13, in the first embodiment, a dimming terminal block is arranged as functional part 60A in recess 46. In this case, however, it is preferable to form a through hole on the second direction side or on the inside in the width direction of frame 40 (facing power supply 4 in a portion where power supply 4 is not present). This allows the installer to easily connect an electric wire such as a VVF cable or a dimming signal line to functional part 60A by passing the electric wire through this through hole.

[0203] For example, as in an LED lighting fixture 1V and an LED lighting device 3V shown in FIG. 45 , a through hole 42a may be formed in the second main plate portion 42 of the frame 40, and the electric wire 110 may be passed through this through hole 42a in the Z-axis direction (vertical direction) to connect to the functional component 60A. Alternatively, as in an LED lighting fixture 1W and an LED lighting device 3W shown in FIG. 46 , a through hole 43a may be formed in the connecting plate portion 43 of the frame 40, and the electric wire 110 may be passed through this through hole 43a in the X-axis direction (horizontal direction) to connect to the functional component 60A. Note that the through holes 42a and 43a may be formed for each electric wire 110, or may be formed to have a larger opening so that multiple electric wires 110 can pass through. The size of the opening of the through holes 42a and 43a may be large enough to ensure an insulation distance from the electric wire 110. Furthermore, insulation properties may be improved by fitting a resin part such as an insulating bushing into the through holes 42a and 43a. The openings of the through holes 42a and 43a may have any shape, such as a circle or a rectangle.

[0204] In addition, in the above-mentioned first embodiment and the like, when the LED illumination device 3 is attached to the fixture body 2, the LED illumination device 3 is rotated so that the side plate portion 44 side (first main plate portion 41 side) with the larger protrusion amount faces the rotation axis side, but this is not limited to this. In other words, the LED illumination device 3 may be attached to the fixture body 2 by rotating it so that the upright plate portion 45 side (second main plate portion 42 side) with the smaller protrusion amount faces the rotation axis side.

[0205] The LED lighting device 3 may also be attached to the fixture body 2 without rotating the LED lighting device 3. Specifically, the LED lighting device 3 may be moved in the vertical direction so as to translate the LED lighting device 3 toward the fixture body 2 installed on the ceiling, and then the LED lighting device 3 may be pressed vertically into the recess 2a of the fixture body 2 to fit it in, thereby attaching the LED lighting device 3 to the fixture body 2.

[0206] Furthermore, in the above-described first embodiment and the like, an SMD-type LED element in which an LED chip is mounted in a package is used as the LED 20, and the light-emitting module consisting of the substrate 10 and the LED 20 is an SMD-type LED module, but this is not limiting. 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, LED chips (bare chips) themselves may be used as the LED 20, and multiple LEDs 20 (LED chips) may be linearly arranged on the substrate 10, and the multiple LEDs 20 may be collectively or individually sealed with a sealing member (for example, a phosphor-containing resin).

[0207] Furthermore, in the above-described first embodiment and the like, the cover member 30 having both diffusive and translucent properties is used, but this is not limiting. For example, a translucent cover having only translucent properties out of the diffusive and translucent properties may be used instead of the cover member 30. In this case, a transparent cover with high transmittance that allows the viewer to see through to the other side may be used as the translucent cover.

[0208] In addition, the present invention also includes forms obtained by making various modifications to the above-mentioned embodiments that a person skilled in the art would think of, and forms realized by arbitrarily combining the components and functions of each embodiment within the scope of the present invention. [Explanation of symbols]

[0209] 1, 1A, 1B, 1Bα, 1Bβ, 1C, 1D, 1Dα, 1Dβ, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M, 1N, 1O, 1P, 1Q, 1R, 1S, 1T, 1U, 1V, 1W LED lighting fixtures 2. Device body 3, 3A, 3B, 3Bα, 3Bβ, 3C, 3D, 3Dα, 3Dβ, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, 3M, 3N, 3O, 3P, 3Q, 3R, 3S, 3T, 3U, 1V, 1W LED lighting equipment 4, 4H power supply 5 Hook 10 Substrate 20 LED 30, 30B, 30Bα, 30Bβ, 30C, 30D, 30Dα, 30Dβ, 30E, 30R, 30T カバー parts 31 カバー main body part 32, 32B Cash and Payment Department 33, 33B, 33Bβ, 33R extension pieces 34, 34B, 34T series stop films 40, 40E, 40F, 40G, 40I, 40J, 40K, 40L, 40M, 40N, 40Q フレーム 41, 41J, 41M, 41N First Mainboard Section 42, 42G, 42I, 42K, 42L Second Motherboard Division 43, 43K Connecting plate section 44, 44E Side Panel Section 45 Vertical board part 60, 60A, 60U Functional Components Conductive wires 81 and 82

Claims

1. a substrate on which an LED is arranged; a long frame to which the substrate is attached; a cover member attached to the frame so as to cover the LED, the frame has a first main plate portion located on one side in a short side direction of the frame and extending along a longitudinal direction of the frame, and a second main plate portion located on the other side in the short side direction of the frame and extending along the longitudinal direction of the frame, a first direction is a direction of the frame on which the substrate is disposed, and a second direction is a direction opposite to the first direction, the second main plate portion is located closer to the second direction than the first main plate portion, The second main plate portion is provided over the entire longitudinal direction of the frame. LED lighting equipment.

2. The frame has a connecting plate portion that connects the first main plate portion and the second main plate portion. The LED lighting device according to claim 1 .

3. the frame has a side plate portion protruding in the second direction from an end of the first main plate portion, The LED lighting device according to claim 1 or 2.

4. The frame has a standing plate portion that protrudes in the first direction from an end of the second main plate portion. The LED lighting device according to claim 3 .

5. The protruding amount of the upright plate portion is smaller than the protruding amount of the side plate portion. The LED lighting device according to claim 4.

6. The cover member is attached to at least one of the first main plate portion, the second main plate portion, the side plate portion, and the standing plate portion. The LED lighting device according to claim 4 or 5.

7. The cover member has a cover main body portion, an attachment portion extending from the cover main body portion toward the frame side, and an extension piece erected on the attachment portion inside the attachment portion, A space region exists between the extension piece and the second main plate portion. The LED lighting device according to any one of claims 1 to 6.

8. The substrate is disposed on the first main plate portion. The LED lighting device according to any one of claims 1 to 7.

9. a power supply for supplying power to the LED; The power supply device is disposed on the second direction side of the first main plate portion. The LED lighting device according to any one of claims 1 to 8.

10. a recess is formed on the first direction side of the second main plate portion due to a step between the first main plate portion and the second main plate portion, Components constituting the LED lighting device are disposed in the recess. The LED lighting device according to any one of claims 1 to 9.

11. The components constituting the LED lighting device are functional components related to lighting the LEDs. The LED lighting device according to claim 10.

12. The components constituting the LED lighting device are conductive wires. The LED lighting device according to claim 10.

13. The length of the first main plate portion in the short side direction is longer than the length of the second main plate portion in the short side direction. The LED lighting device according to any one of claims 1 to 12.

14. The LED lighting device according to any one of claims 1 to 13; and a fixture body that holds the LED lighting device. LED lighting fixture.

15. The LED lighting device is attached to the fixture body by rotating the first main plate portion side to the rotation axis side.

15. The LED lighting fixture of claim 14.

16. the LED lighting device has a hook that can be hooked onto the fixture body, The hook is disposed on a portion of the frame on the second direction side of the first main plate portion.

16. The LED lighting fixture according to claim 14 or 15.

17. the LED lighting device has an elastic holding member attached to the fixture body, The elastic holding member is disposed on a portion of the frame on the second direction side of the second main plate portion.

17. The LED lighting fixture of claim 16.

18. The LED lighting device is detachably attached to the fixture body. The LED lighting fixture according to any one of claims 14 to 17.

Images