LED lighting device and LED lighting fixture

Abstract

To provide an LED lighting device that can restrain light emitted from an LED from reaching an extention piece of a cover member.SOLUTION: An LED lighting device 3 is detachably attached to a recess 2a in a fixture body 2 of an LED lighting fixture 1, and includes: a substrate 10 on which an LED 20 is disposed; a frame 40 having a long-sized main plate part 41 with the substrate 10 attached thereto; and a cover member 30 attached to the frame 40 so as to cover the LED 20. The main plate part 41 has a hollow part 41a provided along the longitudinal direction of the main plate part 41, at an edge part in a shorter direction of the main plate part 41. The cover member 30 has an extention piece 33 at least part of which is located at the hollow part 41a. The extention piece 33 extends along the shorter direction of the main plate part 41.SELECTED DRAWING: Figure 6

Description

Technical Field

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

Background Art

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

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

[0004] In such an LED lighting device, the frame has, for example, a main board portion to which the substrate is attached and a pair of side board portions bent from both ends in the short side direction (width direction) of the main board portion. Further, the cover member has a cover main body portion, a pair of attachment portions extending from both ends in the width direction of the cover main body portion and attached to the pair of side board portions of the frame, and a pair of extension pieces extending from each of the pair of attachment portions and pressing against the end portions in the width direction of the main board portion of the frame.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in a conventional LED lighting device, since the extended piece of the cover member is placed on the end portion in the width direction of the main board portion of the frame, a part of the light emitted from the LED may reach the extended piece.

[0007] When the light of the LED reaches the extended piece in this way, since the light of the LED is blocked by the extended piece, there is a problem that the end portion in the width direction of the LED lighting device does not shine cleanly.

[0008] In addition, since the extended piece is a part of the cover member having translucency, the light of the LED that reaches the extended piece may enter the inside of the extended piece. In this case, there is also a problem that the light of the LED incident on the extended piece guides the light through the extended piece and also guides the light through the attachment portion connected to the extended piece, and light leaks from the end portion of the attachment portion or the like.

[0009] The present invention has been made in view of such problems, and an object thereof is to provide an LED lighting device and an LED lighting fixture capable of suppressing the light emitted from the LED from reaching the extended piece of the cover member.

Means for Solving the Problems

[0010] In order to achieve the above object, one aspect of the LED lighting device according to the present invention is an LED lighting device detachably attached to a recess of an instrument body of an LED lighting fixture, including a substrate on which LEDs are arranged, a frame having a long main board portion to which the substrate is attached, and a cover member attached to the frame so as to cover the LEDs. The main board portion has a recess provided along the longitudinal direction of the main board portion at an end portion in the short direction of the main board portion. The cover member has an extended piece at least a part of which is located in the recess, and the extended piece extends along the short direction of the main board portion.

[0011] Moreover, one aspect of the LED lighting fixture according to the present invention includes the above LED lighting device and an instrument body that holds the LED lighting device.

Effects of the Invention

[0012] It is possible to suppress the light emitted from the LED from reaching the extended piece of the cover member.

Brief Description of the Drawings

[0013]

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DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present invention. Therefore, the numerical values, components, arrangement positions and connection forms of the components, and the processes and the order of the processes shown in the following embodiments are merely examples and are not intended to limit the present invention. Thus, among the components in the following embodiments, the components not described in the independent claims indicating the most general concept of the present invention are described as optional components.

[0015] Note that each figure is a schematic diagram and is not necessarily drawn precisely. Also, in each figure, the same reference numerals are assigned to substantially the same configurations, and duplicate explanations are omitted or simplified. Further, in each figure, the X-axis, Y-axis, and Z-axis represent the three axes of a three-dimensional orthogonal coordinate system. In the present 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 perpendicular to each other and are both perpendicular to the Z-axis. Note that in this specification, the terms "upper" and "lower" do not necessarily refer to the upward (vertically upward) and downward (vertically downward) directions in an absolute spatial sense.

[0016] (Embodiment 1) First, the configuration of the 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 same LED lighting fixture 1. FIG. 3 is a cross-sectional view of the same LED lighting fixture 1. Note that FIG. 3 shows a cross-section when the LED lighting fixture 1 is cut along a plane parallel to the short side direction.

[0017] As shown in FIGS. 1 to 3, the LED lighting fixture 1 according to the present embodiment includes a fixture body 2 and an LED lighting device 3 attached to the fixture body 2.

[0018] 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 the present embodiment is a ceiling-mounted lighting fixture. Therefore, the fixture body 2 is attached to the ceiling of a room using bolts or the like.

[0019] In the present embodiment, the instrument body 2 is made of sheet metal and is formed into a box shape that is long and flat in the Y-axis direction by performing bending processing or the like on a metal plate. As shown in FIG. 2, the instrument body 2 is provided with a recess 2a having a rectangular opening surface. The recess 2a is provided in a long shape along the longitudinal direction of the instrument body 2. The recess 2a is a storage portion for storing the LED lighting device 3 and is provided over substantially the entire length of the instrument body 2. Further, as shown in FIGS. 2 and 3, inclined surfaces 2b that extend from the open edge of the recess 2a and incline upward (ceiling side) toward the outside are provided on both sides of the recess 2a in the width direction of the instrument body 2, respectively.

[0020] 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 instrument body 2. For example, the LED lighting device 3 can be attached to the recess 2a of the instrument body 2, or the LED lighting device 3 attached to the recess 2a of the instrument body 2 can be removed from the recess 2a. The LED lighting device 3 and the instrument body 2 can be fixed by hooking and locking attachment members such as a hook fitting and a kick spring provided on the LED lighting device 3 to the instrument body 2.

[0021] As shown in FIG. 3, the LED lighting device 3 emits light by the electric power supplied from the power supply device 4 housed in the instrument body 2. The power supply device 4 is an example of an electrical functional component and supplies electric power to the LED lighting device 3. The power supply device 4 is disposed on the back side of the LED lighting device 3. Specifically, the power supply device 4 is disposed in the recess 2a of the instrument body 2. In the present embodiment, the power supply device 4 is attached to the LED lighting device 3 as a part of the LED lighting device 3 and is integrated with the LED lighting device 3. Note that the power supply device 4 may not be integrated with the LED lighting device 3 and may be separately disposed in the instrument body 2 separated from the LED lighting device 3.

[0022] The power supply device 4 is constituted by a power supply circuit that generates electric power for causing the LED lighting device 3 to emit light. For example, the power supply device 4 includes a printed circuit board on which a plurality of electronic components are mounted, and a circuit case that houses the printed circuit board. The power supply device 4, for example, converts AC power from an external power supply such as a commercial power supply through rectification, smoothing, step-down, etc. into DC power at a predetermined level, and supplies the DC power to the LED lighting device 3.

[0023] AC power is supplied to the power supply device 4 via a power supply terminal block 8 (see FIG. 2) to which a power supply line inserted through a through-hole of the instrument body 2 from above the ceiling and drawn out to a recess 2a of the instrument body 2 is connected. The power supply terminal block 8 is installed in the recess 2a of the instrument body 2.

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

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

[0026] As shown in FIGS. 3, 6, and 7, the LED lighting device 3 includes a substrate 10, LEDs 20 arranged on the substrate 10, a cover member 30 that covers the LEDs 20, a frame 40 that supports the substrate 10, and end caps 50.

[0027] The substrate 10 is a mounting substrate for mounting the LED 20. In the present embodiment, the substrate 10 is formed in a substantially rectangular shape that is long in the longitudinal direction (Y-axis direction) of the frame 40. The thickness of the substrate 10 is, for example, 1.0 mm. The substrate 10 may have a length substantially equal to the entire length in the longitudinal direction of the frame 40, or may be arranged in a plurality of sheets along the longitudinal direction of the frame 40. As shown in FIG. 7, in the present embodiment, two substrates 10 are arranged along the longitudinal direction of the frame 40.

[0028] As shown in FIGS. 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 which is the surface on which the LED 20 is mounted. On the other hand, the second surface 10b of the substrate 10 is the back surface facing the frame 40. In the present embodiment, the second surface 10b of the substrate 10 is in contact with the frame 40.

[0029] The substrate 10 is, for example, a printed wiring board (printed circuit board) in which metal wirings are 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 wirings in order to protect the wirings and ensure the dielectric withstand voltage. The substrate 10 may be a single-sided wiring board in which wirings are formed only on the first surface 10a on which the LED 20 is mounted, or may be a double-sided wiring board in which wirings are formed on each of the first surface 10a and the second surface 10b.

[0030] As the base material constituting the substrate 10, a resin substrate made of an insulating resin material, a ceramic substrate made of a sintered body of a ceramic material such as alumina, a metal base substrate obtained by applying an insulating coating to the surface of a metal base material made of a metal material such as aluminum or copper, etc. are used.

[0031] When the substrate 10 is made of a resin substrate, examples of the resin substrate include a glass epoxy substrate (such as CEM-3, FR-4, etc.) composed of glass fibers and an epoxy resin, a paper phenolic substrate (FR-1, FR-2) composed of kraft paper or the like and a phenolic resin, a paper epoxy substrate (FR-3) composed of paper and an epoxy resin, or a polyimide substrate composed of polyimide or the like. Further, the substrate 10 may be a rigid substrate or a film-like flexible substrate.

[0032] As shown in FIGS. 6 and 7, a plurality of LEDs 20 are mounted on the first surface 10a of the substrate 10. In the present embodiment, the plurality of LEDs 20 are mounted in a straight line along the longitudinal direction (Y-axis direction) of the substrate 10 with a predetermined interval. Specifically, the plurality of LEDs 20 are mounted over substantially the entire longitudinal length of the cover member 30 and the frame 40. Note that the plurality of LEDs 20 may be mounted in a plurality of rows instead of a single row along the longitudinal direction of the substrate 10.

[0033] The LED 20 is an example of a light-emitting element. In the present embodiment, each of the plurality of LEDs 20 is an LED element (LED light source) having an SMD structure individually packaged. In this case, each LED 20 includes a resin or ceramic white container (package), an LED chip (bare chip) disposed in the container, and a sealing member for sealing the LED chip. In the present embodiment, the LED 20 is a white LED element that emits white light. In this case, for example, as the LED chip, a blue LED chip that emits blue light when energized is used, and as the sealing member filled in the container, a silicone resin (phosphor-containing resin) containing a yellow phosphor such as YAG is used.

[0034] The plurality of LEDs 20 are covered by the cover member 30. Specifically, all of the LEDs 20 are covered by the cover member 30. The cover member 30 is an example of a translucent cover having translucency, and transmits the light emitted from the LEDs 20. In the present embodiment, the cover member 30 is a diffusing cover having not only translucency but also diffusibility. Therefore, the light of the LEDs 20 incident on the cover member 30 passes through the cover member 30 while being diffused (scattered) by the cover member 30.

[0035] As shown in FIGS. 3 and 6, the cover member 30 covers the substrate 10. Specifically, the cover member 30 is disposed to face the first surface 10a of the substrate 10 so as to cover the plurality of LEDs 20.

[0036] In the present embodiment, the cover member 30 covers the entire substrate 10 on which the LEDs 20 are disposed. As shown in FIGS. 5 and 6, the cover member 30 further covers the entire frame 40 on which the substrate 10 is disposed. Therefore, the cover member 30 is formed in a long shape in the Y-axis direction, similarly to the substrate 10 and the frame 40.

[0037] The cover member 30 is attached to the frame 40. Further, a cylindrical body is formed by the cover member 30 and the frame 40, and the substrate 10 and the plurality of LEDs 20 mounted on the substrate 10 are housed in this cylindrical body.

[0038] The cover member 30 is attached to the frame 40 so as to cover the substrate 10 and the LEDs 20. As shown in FIGS. 3 and 6, the cover member 30 has a cover main body portion 31, an attachment portion 32 connected to the cover main body portion 31, and an extension piece 33 connected to the attachment portion 32.

[0039] As shown in FIG. 7, the cover main body 31 is long in the Y-axis direction and is formed in a gutter shape. The cover main body 31 has, for example, a substantially semi-cylindrical shape that is flat. Therefore, the cover main body 31 has an elongated rectangular opening end face that extends in the Y-axis direction. Further, 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 a substantially arc shape.

[0040] As shown in FIGS. 3 and 6, the cover main body 31 includes a protruding portion 31a that protrudes outward in the width direction of the cover main body 31 from the attachment portion 32. The protruding portions 31a are formed at both ends in the short side direction (width direction) of the cover main body 31. Each protruding portion 31a does not have a recess on the side opposite to the frame 40 side. That is, no recess is formed on the ceiling side of each protruding portion 31a. Specifically, each protruding portion 31a is formed in a V-shaped cross-section in the XZ cross-section, and the portion on the ceiling side of the protruding portion 31a is formed so as to be in the same plane as the extending piece 33 via the attachment portion 32.

[0041] The attachment portion 32 is a portion that is attached to the frame 40. Specifically, the attachment portion 32 is attached to the side plate portion 42 of the frame 40. Further, the attachment portion 32 is an extending portion that extends from the cover main body 31 toward the frame 40 side.

[0042] The attachment portion 32 is formed as a pair of leg portions so as to stand on the cover main body 31 from each of both ends in the short side direction (X-axis direction) of the cover main body 31. In the present embodiment, the lengths of the pair of attachment portions 32 in the Z-axis direction are the same. As shown in FIG. 7, each of the pair of attachment portions 32 is formed to be long along the Y-axis direction. The lengths of the pair of attachment portions 32 in the Y-axis direction are also the same as each other.

[0043] As shown in FIGS. 6 and 7, recesses 32a are formed inside the pair of mounting portions 32 at the tip portions in the width direction (X-axis direction). By fitting the bent portions 42a provided at the tip portions of the side plate portions 42 of the frame 40 into the recesses 32a, the pair of mounting portions 32 of the cover member 30 and the pair of side plate portions 42 of the frame 40 are locked and fixed to each other. Thereby, the pair of mounting portions 32 of the cover member 30 are fixed and held to the frame 4 0 so as to hold the frame 40.

[0044] As shown in FIGS. 3 and 6, the extending piece 33 is an extending portion that extends to the recessed portion 41a of the frame 40. Specifically, the extending piece 33 extends along the short side direction (X-axis direction) of the cover member 30 from the mounting portion 32. Therefore, the extending piece 33 is located inside the mounting portion 32. Specifically, the extending 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 extending piece 33 is a plate piece formed in a plate shape with a constant thickness.

[0045] At least a part of the extending piece 33 is located in the recessed portion 41a. In the present embodiment, the entire extending piece 33 is located in the recessed portion 41a. The extending piece 33 is fitted into the recessed portion 41a.

[0046] In addition, the portion of the extending piece 33 located in the recessed portion 41a exists at a position recessed from the light emitting surface of the LED 20. That is, the portion of the extending piece 33 located in the recessed portion 41a is located on the ceiling side rather than the light emitting surface of the LED 20, and does not protrude to the floor side beyond the light emitting surface of the LED 20. In the present embodiment, the extending piece 33 is located on the ceiling side rather than the outer surface of the main board portion 41 where the recessed portion 41a is not formed. That is, the entire extending piece 33 is housed in the recessed portion 41a so as not to protrude from the recessed portion 41a.

[0047] The extended piece 33 has a function as a stopper for pressing against the main board portion 41 of the frame 40. That is, the extended piece 33 prevents the frame 40 from shifting to the light emitting side (floor side) of the LED 20. In the present embodiment, the extended piece 33 presses the main board portion 41 from the floor side (the light emitting side of the LED 20) toward the ceiling side so that the frame 40 does not shift to the floor side. Specifically, the extended piece 33 presses against the recessed portion 41a provided in the main board portion 41. Therefore, the extended piece 33 is in contact with the recessed portion 41a. In the present embodiment, the extended piece 33 is in contact with the recessed portion 41a while pressing the recessed portion 41a. By attaching the cover member 30 to the frame 40, the extended piece 33 is in a state of pressing the recessed portion 41a.

[0048] Further, the extended piece 33 also has a function of suppressing the intrusion of insects into the space between the cover main body portion 31 of the cover member 30 and the main board portion 41 of the frame 40. That is, by providing the extended piece 33 so as to press the main board portion 41, a maze structure can be formed in the path when insects enter through the gap between the attachment portion 32 of the cover member 30 and the side plate portion 42 of the frame 40, so that the intrusion of insects into the interior can be suppressed.

[0049] Also, the extended pieces 33 stand upright from each of the pair of attachment portions 32. That is, the cover member 30 has a pair of extended pieces 33. In the present embodiment, the lengths of the pair of extended pieces 33 in the X-axis direction are the same. As shown in FIG. 7, each of the pair of extended pieces 33 is formed in a long shape along the Y-axis direction. The lengths of the pair of extended pieces 33 in the Y-axis direction are also the same as each other. As an example, the pair of extended pieces 33 has the same shape and the same shape, but is not limited thereto. Also, the pair of extended pieces 33 are provided at the same height position in the Z-axis direction.

[0050] The cover member 30 is made of a light-transmissive material such as a light-transmissive resin material like acrylic or polycarbonate, or a glass material. In the present embodiment, the cover member 30 is made of a light-transmissive resin material. In this case, the cover member 30 can be a milky white cover member in which a light diffusing material is dispersed inside. Such a cover member 30 can be produced by resin molding a light-transmissive resin material mixed with a light diffusing material into a predetermined shape. As the light diffusing material, light-reflective fine particles such as silica particles can be used.

[0051] Note that the cover member 30 may be configured by forming a milky white light diffusing film containing a light diffusing material or the like on the surface (inner surface or outer surface) of a transparent cover, rather than dispersing a light diffusing material inside. Further, the cover member 30 may be configured to have light diffusing properties by performing diffusion processing instead of using a light diffusing material. For example, the cover member 30 may be configured to have light diffusing properties by forming minute irregularities on the surface of a transparent cover by performing a surface treatment such as embossing, or by printing a dot pattern on the surface of the transparent cover. Note that even when the cover member 30 is subjected to diffusion processing, a light diffusing material may be further contained in order to enhance the light diffusing properties.

[0052] In the present embodiment, the cover main body portion 31, the attachment portion 32, and the extension piece 33 that constitute the cover member 30 are integrally formed. Therefore, the cover main body portion 31, the attachment portion 32, and the extension piece 33 are made of the same material.

[0053] 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 the present 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.

[0054] As an example, the frame 40 is a sheet metal frame. The frame 40 is formed into a predetermined shape by performing roll forming, press working, or the like on a sheet metal (metal plate) made of, for example, SPCC (Steel Plate Cold Commercial; cold-rolled steel sheet). In the present embodiment, the frame 40 is formed such that the shape of a cross section (XZ cross section) when cut along the X-axis direction is substantially U-shaped. Further, the frame 40 is formed in a long shape in the Y-axis direction, similarly to the substrate 10 and the appliance main body 2. The thickness of the metal plate constituting the frame 40 is, for example, 0.2 mm to 2 mm, and is 0.5 mm in the present embodiment.

[0055] As shown in FIGS. 3 to 7, the frame 40 has a plate-shaped main board portion 41 to which the substrate 10 is attached, and a pair of plate-shaped side board portions 42 to which the frame 40 is attached. As shown in FIG. 7, the main board portion 41 and the pair of side board portions 42 are long and extend in the Y-axis direction.

[0056] The main board portion 41 is the main body portion of the frame 40. As shown in FIGS. 3 and 6, the substrate 10 is placed on the main board portion 41. That is, the main board portion 41 supports the substrate 10. In the present embodiment, the substrate 10 and the main board portion 41 are in contact with each other.

[0057] The main board portion 41 has a recessed portion 41a. The recessed portion 41a has a shape in which the surface on the light emitting surface side of the LED 20 in the main board portion 41 is recessed. Specifically, the recessed portion 41a is formed by recessing a part of the main board portion 41 toward the ceiling side. In this case, the recessed portion 41a can be formed, for example, by recessing a part of the main board portion 41 toward the ceiling side by press working. Therefore, the plate thickness of the bottom of the recessed portion 41a is the same as the plate thickness of the portion of the main board portion 41 where the recessed portion 41a is not formed.

[0058] The recessed portion 41a is provided at the end of the main board portion 41 in the short side direction (X-axis direction). Specifically, in the present embodiment, the recessed portions 41a are provided at each of the both ends in the short side direction of the main board portion 41. Specifically, each recessed portion 41a is formed at the connection portion between the main board portion 41 and the side plate portion 42 so as to eliminate the corner between the main board portion 41 and the side plate portion 42.

[0059] Further, the recessed portion 41a is provided along the longitudinal direction (Y-axis direction) of the main board portion 41. In the present embodiment, the recessed portion 41a is provided over the entire length in the longitudinal direction of the main board portion 41. As an example, the width of the recessed portion 41a is larger than the depth, but it is not limited thereto. Also, the two recessed portions 41a have the same shape and size as each other, but it is not limited thereto. That is, the depths and widths of the two recessed portions 41a are the same as each other, but it is not limited thereto.

[0060] As described above, the extended piece 33 of the cover member 30 is located in the recessed portion 41a. Specifically, the extended piece 33 is housed in the recessed portion 41a. Further, the recessed portion 41a is pressed toward the ceiling side by the pressing from the extended piece 33. That is, the main board portion 41 of the frame 40 is pressed toward the ceiling side by the extended piece 33.

[0061] As shown in FIG. 7, a claw portion 43 formed by cutting and raising a part of the sheet metal frame 40 is formed on the main board portion 41, and the substrate 10 placed on the main board portion 41 is fixed to the main board portion 41 by being locked to the claw portion 43. Further, the main board portion 41 is provided with a through hole through which a conductive wire for electrically connecting the wiring of the substrate 10 and the power supply device 4 is inserted.

[0062] The pair of side plate portions 42 constitute the side surface portions of the frame 40. Each of the pair of side plate portions 42 extends in the Z-axis direction from both ends in the short-side direction (X-axis direction) of the main plate portion 41. The pair of side plate portions 42 are formed so as to stand on the main plate portion 41 from each of both ends in the short-side direction (X-axis direction) of the main plate portion 41. For example, the pair of side plate portions 42 and the main plate portion 41 can be formed by bending a sheet metal at approximately 90 degrees.

[0063] An attachment portion 32 of the cover member 30 is attached to each of the pair of side plate portions 42. Specifically, as shown in FIGS. 6 and 7, a bent portion 42a is provided at the tip of the side plate portion 42, where the tip is curled outward and lifted up, and the bent portion 42a of the side plate portion 42 is snap-fitted into a recess 32a provided in the attachment portion 32 of the cover member 30, whereby the cover member 30 can be fixed to the frame 40.

[0064] When the cover member 30 and the frame 40 are fixed, a long cylindrical body is formed. End caps 50 are attached to each of both ends in the longitudinal direction of the cylindrical body formed by the cover member 30 and the frame 40.

[0065] In the present embodiment, the end cap 50 is provided so as to block the opening end of the cylindrical body formed by the cover member 30 and the frame 40. That is, the end cap 50 is attached to the cylindrical body so as to cover the opening end of the cylindrical body formed by the cover member 30 and the frame 40, and closes the opening end of the cylindrical body. Thereby, it is possible to suppress 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 block the opening end of the cylindrical body formed by the cover member 30 and the frame 40, and there may be a slight gap between the end cap 50 and the frame 40.

[0066] The end caps 50 are provided at each of the longitudinal ends of the cover member 30. That is, the end caps 50 are the 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 by an adhesive.

[0067] The end caps 50 are made of a resin material. Also, the end caps 50 may or may not have light transmissivity. The end caps 50 having light transmissivity are made of a transparent resin material such as polycarbonate or acrylic, for example. Further, the end caps 50 may have light transmissivity and diffusibility. In this case, the end caps 50 may be made of the same material as the cover member 30 or may be made of a material different from the cover member 30.

[0068] The LED lighting device 3 configured in this way is housed in the recess 2a of the fixture body 2 and attached to the fixture body 2. Specifically, the LED lighting device 3 is attached to the fixture body 2 using the hanging brackets 5 and the elastic holding members 6 shown in FIGS. 4 and 5. The hanging brackets 5 and the elastic holding members 6 are fixed to the frame 40. Specifically, the sheet metal hanging brackets 5 are fixed to the frame 40 by screws. Also, the elastic holding member 6 is a spring such as a kick spring, for example, and is fixed to the frame 40 by a fixing bracket fixed to the frame 40. The hanging bracket 5 is fixed to one end in the lateral direction of the frame 40, and the elastic holding member 6 is fixed to the other end in the lateral direction of the frame 40. As an example, two hanging brackets 5 and elastic holding members 6 are provided, but it is not limited to this. Also, the hanging brackets 5 and the elastic holding members 6 are provided at positions facing each other in the lateral direction of the frame 40, but it is not limited to this.

[0069] When attaching the LED lighting device 3 to the appliance body 2, the LED lighting device 3 is suspended in a cantilever state by hooking the hanging bracket 5 on the slit formed in the appliance body 2, and the LED lighting device 3 is rotated with the hanging bracket 5 as a fulcrum and pushed up into the recess 2a of the appliance body 2 to lock the elastic holding member 6 to the receiving bracket provided on the appliance body 2. Thereby, the LED lighting device 3 can be attached to the appliance body 2.

[0070] Next, the operation and effect of the LED lighting device 3 according to the present embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 is a cross-sectional view of the LED lighting device 3X of the comparative example. FIG. 9 is a cross-sectional view of the LED lighting device 3 according to the first embodiment. In FIGS. 8 and 9, the straight line of the arrow indicates a part of the light emitted from the LED 20.

[0071] The LED lighting device 3X of the comparative example shown in FIG. 8 differs from the LED lighting device 3 according to the present embodiment in the configurations of the cover member 30X and the frame 40X. Specifically, in the LED lighting device 3X of the comparative example, the cover member 30X has a cover main body portion 31X, a pair of attachment portions 32X, and a pair of extended pieces 33X, similar to the cover member 30 of the LED lighting device 3 according to the present embodiment. Also, the frame 40X has a main board portion 41X and a pair of side board portions 42, similar to the frame 40 of the LED lighting device 3 according to the present embodiment. However, in the LED lighting device 3X of the comparative example, no recess is provided in the main board portion 41X of the frame 40X. Therefore, in the LED lighting device 3X of the comparative example, the pair of extended pieces 33X of the cover member 30X are placed on the ends in the short side direction (X-axis direction) of the main board portion 41X without being positioned in the recess of the main board portion 41X.

[0072] For this reason, as shown in FIG. 8, in the LED lighting device 3X of the comparative example, a part of the light emitted from the LED 20 may reach the extended piece 33X. Specifically, the light emitted from the LED 20 at a low angle may reach the extended piece 33X.

[0073] As a result, since part of the light emitted from the LED 20 is blocked by the extended piece 33X, the end portion of the LED lighting device 3X in the short side direction (X-axis direction) fails to shine brightly. For example, there may be a streak-like brightness difference along the longitudinal direction (Y-axis direction) on the light emitting surface at the end portion of the cover member 30X in the short side direction.

[0074] In addition, since the extended piece 33X is a part of the cover member 30X having translucency, the light of the LED 20 reaching the extended piece 33X will enter the inside of the extended piece 33X. In this case, the light of the LED 20 incident on the extended piece 33X will guide the light through the extended piece 33X and also guide the light through the attachment portion 32X connected to the extended piece 33X, and light may leak from the end portion or the like of the attachment portion 32X. As a result, a desired light distribution or a desired atmosphere of light may not be obtained.

[0075] On the other hand, as shown in FIG. 9, in the LED lighting device 3 according to the present embodiment, a recessed portion 41a is provided in the main board portion 41 of the frame 40, and the extended piece 33 of the cover member 30 is located in the recessed portion 41a.

[0076] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33. In particular, in the present embodiment, the portion of the extended piece 33 located in the recessed portion 41a is located at a position recessed from the light emitting surface of the LED 20. Thereby, it is possible to further suppress the light emitted from the LED 20 from reaching the extended piece 33. Specifically, in the present embodiment, the light emitted from the LED 20 is prevented from reaching the extended piece 33. For example, even if part of the light emitted from the LED 20 travels substantially parallel to the X-axis direction, the light is prevented from reaching the extended piece 33.

[0077] Thereby, since the light of the LED 20 is not blocked by the extended piece 33, it is possible to suppress the occurrence of a brightness difference on the light emitting surface at the end portion of the cover member 30 in the short side direction. Therefore, compared with the LED lighting device 3X of the comparative example, the end portion of the LED lighting device 3 in the short side direction (X-axis direction) can be made to shine brightly.

[0078] Moreover, since the light of the LED 20 does not reach the extension piece 33, the light of the LED 20 does not enter the extension piece 33 either. As a result, the light of the LED 20 does not guide through the extension piece 33 and the attachment portion 32 and leak from the end portion or the like of the attachment portion 32. Therefore, a desired light distribution and a desired light atmosphere can be obtained.

[0079] In addition, in the LED lighting device 3 according to the present embodiment, the recessed portions 41a of the frame 40 are provided at both ends in the short side direction (X-axis direction) of the main board portion 41. That is, a pair of recessed portions 41a are provided on the main board portion 41 with the LED 20 interposed therebetween. And each of the pair of extension pieces 33 of the cover member 30 is located in each of the pair of recessed portions 41a.

[0080] With this configuration, it is possible to suppress the light emitted from both sides in the short side direction of the frame 40 from the LED 20 from reaching the extension piece 33. That is, it is possible to suppress the light of the LED 20 from reaching each of the pair of extension pieces 33. As a result, it is possible to suppress the occurrence of a brightness difference on the light emitting surface of each of both end portions in the short side direction of the cover member 30. That is, it is possible to suppress the occurrence of a brightness difference over the entire cover member 30. Therefore, the entire LED lighting device 3 can be made to emit light beautifully.

[0081] In addition, since the light of the LED 20 does not reach each of the pair of extension pieces 33, the light of the LED 20 does not enter any of the pair of extension pieces 33 either. As a result, the light of the LED 20 does not guide through the pair of extension pieces 33 and leak from the end portion or the like of the pair of attachment portions 32. Therefore, a desired light distribution and a desired light atmosphere can be more easily obtained.

[0082] In addition, in the LED lighting device 3 according to the present embodiment, the extension piece 33 is in contact with the recessed portion 41a. Specifically, the extension piece 33 is in contact with the recessed portion 41a in a state of pressing the recessed portion 41a.

[0083] With this configuration, the main board portion 41 can be pressed by the extension piece 33, so that the displacement of the frame 40 can be suppressed. In particular, the displacement of the frame 40 in the Z-axis direction can be suppressed.

[0084] Also, in the LED lighting device 3 of the present embodiment, the cover main body portion 31 of the cover member 30 includes a protruding portion 31a that protrudes outward from the mounting portion 32, and this protruding portion 31a does not have a recess that is recessed on the side opposite to the frame 40 side.

[0085] If a recess is formed in the portion of the protruding portion 31a on the side opposite to the frame 40 side, dead bodies of insects and foreign matters may accumulate in this recess, and there is a possibility that the end portion in the short side direction of the cover main body portion 31 may not shine cleanly. On the other hand, in the present embodiment, since no recess is formed in the portion of the protruding portion 31a on the side opposite to the frame 40 side, dead bodies of insects and foreign matters do not accumulate at the end portion in the short side direction of the cover main body portion 31. As a result, the end portion in the short side direction of the cover main body portion 31 can also shine cleanly.

[0086] In the present embodiment, the protruding portion 31a of the cover main body portion 31 does not have a recess that is recessed on the side opposite to the frame 40 side, but this is not restrictive. For example, like the LED lighting device 3A shown in FIG. 10, the protruding portion 31aA of the cover main body portion 31A of the cover member 30A may have a recess 31b that is recessed on the side opposite to the frame 40 side. This also applies to the following embodiments. That is, in the following Embodiments 2 to 12, either the cover member 30 or the cover member 30A may be used.

[0087] In addition, in the present embodiment, the cover member 30 and the frame 40 are fixed by fitting the bent portion 42a provided on the side plate portion 42 of the frame 40 into the recess 32a provided in the mounting portion 32 of the cover member 30, but it is not limited to this. For example, as in the LED lighting device 3B shown in FIG. 11, a cover member 30B having a mounting portion 32B without a recess may be used, or a frame 40B having a side plate portion 42B without a bent portion may be used. That is, the mounting portion 32B of the cover member 30B does not have to have a structure that holds the frame 40B. In this case, the cover member 30B and the frame 40B are fixed by screws or the like.

[0088] (Embodiment 2) Next, Embodiment 2 will be described with reference to FIG. 12. FIG. 12 is a cross-sectional view of an LED lighting device 3C used in the LED lighting fixture according to Embodiment 2.

[0089] The LED lighting device 3C according to the present embodiment has a different configuration of the frame 40C from the LED lighting device 3A according to the above Embodiment 1. Specifically, the frame 40C in the present embodiment has a structure in which the main board portion 41C has a protruding portion 41b.

[0090] The protruding portions 41b protrude toward the light emitting side of the LED 20 on both sides of the portion of the main board portion 41C where the substrate 10 is attached. That is, a pair of protruding portions 41b are provided so as to sandwich the substrate 10. Each of the pair of protruding portions 41b protrudes toward the cover main body portion 31A side of the cover member 30A. In the present embodiment, each protruding portion 41b is convex so that the cross-sectional shape in the XZ cross-section is rectangular, and extends along the Y-axis direction. As an example, each protruding portion 41b is formed over the entire length in the longitudinal direction of the main board portion 41C. Note that the pair of protruding portions 41b have the same shape as each other, but are not limited to this.

[0091] The protruding portion 41b is formed by providing a recess 41c in the main board portion 41C. The substrate 10 is placed in the recess 41c. That is, the recess 41c is a substrate placement portion in the main board portion 41C. The recess 41c can be formed by pressing, similar to the recessed portion 41a. In the present embodiment, the depth of the recess 41c is the same as the depth of the recessed portion 41a. That is, the bottom surface of the recess 41c and the bottom surface of the recessed portion 41a are at the same height position in the Z-axis direction. The depth of the recess 41c is equal to or less than the thickness of the substrate 10. Therefore, the substrate 10 is housed in the recess 41c without protruding from the recess 41c. In the present embodiment, the protruding portion 41b is formed by providing the recess 41c in the main board portion 41C, but it is not limited to this. That is, the protruding portion 41b may be formed without providing the recess 41c in the main board portion 41C.

[0092] The width (length in the X-axis direction) of the recess 41c formed in the main board portion 41C is the same as the width of the substrate 10. Thereby, the substrate 10 can be prevented from moving in its width direction by a pair of protruding portions 41b formed on both sides of the recess 41c. That is, the position of the substrate 10 in the width direction can be regulated by the pair of protruding portions 41b. Note that the width of the recess 41c and the width of the substrate 10 do not have to be the same. That is, there may be a gap between the side wall surface of the protruding portion 41b and the side surface of the substrate 10.

[0093] Also, in the present embodiment as well, the extended piece 33 of the cover member 30A is located in the recessed portion 41a of the main board portion 41C. In this case, the portion of the extended piece 33 located in the recessed portion 41a (the entire extended piece 33 in the present embodiment) exists at a position lower than the protruding portion 41b. That is, the thickness of the extended piece 33 is smaller than the height of the protruding portion 41b.

[0094] In the present embodiment, the cover member 30A shown in FIG. 10 is used, but the cover member 30 shown in FIG. 6 may also be used. That is, in the present embodiment, the cover member 30A having the recess 31b in the protruding portion 31aA of the cover main body portion 31A is used, but the cover member 30 in which no recess is provided in the protruding portion 31a of the cover main body portion 31 may also be used.

[0095] Also, regarding the configuration other than the frame 40C, the LED lighting device 3C in the present embodiment is the same as the LED lighting device 3A in the above-described embodiment 1.

[0096] As described above, also in the LED lighting device 3C according to the present embodiment, similar to the above-described embodiment 1, the extended piece 33 of the cover member 30A is located in the recessed portion 41a provided in the main board portion 41C of the frame 40C.

[0097] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33.

[0098] Further, in the LED lighting device 3C according to the present embodiment, a protruding portion 41b is provided on the main board portion 41C of the frame 40C, and the portion of the extended piece 33 of the cover member 30A located in the recessed portion 41a is at a position lower than the protruding portion 41b.

[0099] With this configuration, it is possible to further suppress the light emitted from the LED 20 from reaching the extended piece 33.

[0100] Note that, in the present embodiment, the side wall surface of the protruding portion 41b of the frame 40C was orthogonal to the bottom surface of the recessed portion 41c, but it is not limited to this. For example, like the LED lighting device 3Cα shown in FIG. 13, the side wall surface of the protruding portion 41bα of the frame 40Cα may be inclined with respect to the bottom surface of the recessed portion 41c. In this case, in FIG. 13, only the side wall surface on the substrate 10 side of the protruding portion 41bα is inclined, but the side wall surface on the extended piece 33 side may be inclined, or the side wall surfaces on both sides of the protruding portion 41bα may be inclined.

[0101] Further, in the present embodiment, the main plate portion 41C of the frame 40C was formed such that the bottom surface of the recessed portion 41a and the bottom surface of the concave portion 41c were at the same height position, but it is not limited to this. For example, as in the LED lighting device 3Cβ shown in FIG. 14, the main plate portion 41Cβ of the frame 40Cβ may be formed such that the bottom surface of the recessed portion 41a and the bottom surface of the concave portion 41c are at different height positions. That is, the depth of the recessed portion 41a and the depth of the concave portion 41c may be different. In this case, as shown in FIG. 14, the inclined portion of the side wall surface on the substrate 10 side of the protruding portion 41bβ is lengthened, and the main plate portion 41Cβ is formed in a shape such that the bottom surface of the concave portion 41c is farther from the cover main body portion 31A than the bottom surface of the recessed portion 41a. That is, the depth of the concave portion 41c may be deeper than the depth of the recessed portion 41a. Thereby, it is possible to further suppress the light emitted from the LED 20 from reaching the extending piece 33.

[0102] Further, in the present embodiment, the protruding portion 41b provided on the main plate portion 41C was formed such that the cross-sectional shape in the XZ cross-section was rectangular, but it is not limited to this. For example, as in the LED lighting device 3Cγ shown in FIG. 15, the protruding portion 41bγ provided on the main plate portion 41Cγ of the frame 40Cγ may be formed such that the cross-sectional shape in the XZ cross-section is triangular.

[0103] (Embodiment 3) Next, Embodiment 3 will be described with reference to FIG. 16. FIG. 16 is a cross-sectional view of an LED lighting device 3D used in the LED lighting fixture according to Embodiment 3.

[0104] The LED lighting device 3D according to the present embodiment is different from the LED lighting device 3A (FIG. 10) according to the first modification of the above-described Embodiment 1 in the configuration of the extending piece 33D of the cover member 30D. Specifically, in the above-described Embodiment 1, the extending piece 33 extended in a direction parallel to the first surface 10a and the second surface 10b of the substrate 10, but in the present embodiment, the extending piece 33D extends so as to be inclined with respect to the first surface 10a and the second surface 10b of the substrate 10.

[0105] In this embodiment, the extended piece 33D extends such that the tip end portion (the end portion on the substrate 10 side) is farther from the cover main body portion 31A than the rear end portion (the end portion on the attachment portion 32 side). Specifically, the extended piece 33D is inclined so as to spread outward from the tip end portion to the rear end portion such that a space region S is formed between the extended piece 33D and the recessed portion 41a of the frame 40.

[0106] Also, the tip end portion of the extended piece 33D is in contact with the frame 40. Specifically, the tip end portion of the extended piece 33D is in contact with the bottom surface of the recessed portion 41a of the frame 40.

[0107] Note that, regarding the configuration other than the cover member 30D, the LED lighting device 3D in this embodiment is the same as the LED lighting device 3A in the above-described embodiment 1.

[0108] As described above, also in the LED lighting device 3D according to this embodiment, similar to the above-described embodiment 1, the extended piece 33D of the cover member 30D is located in the recessed portion 41a provided in the main board portion 41 of the frame 40.

[0109] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33D.

[0110] Also, in the LED lighting device 3D according to this embodiment, the extended piece 33D of the cover member 30D is inclined so as to spread outward from the tip end portion to the rear end portion such that a space region S is formed between the extended piece 33D and the recessed portion 41a, and the tip end portion of the extended piece 33D is in contact with the frame 40.

[0111] With this configuration, the space region S formed by the inclined extended piece 33D can be used as a space for allowing the screw shaft or screw head of a screw for attaching a functional member arranged in the LED lighting device 3D to the frame 40 to escape, or as a space for housing a conductive wire.

[0112] In addition, in this embodiment, a space region S is formed between the extended piece 33D and the recessed portion 41a, but it is not limited to this. For example, like the LED lighting device 3Dα shown in FIG. 17, the main plate portion 41Dα of the frame 40Dα may be formed in a shape such that no space region is formed between the extended piece 33D and the recessed portion 41aα. Specifically, the main plate portion 41Dα is formed such that the bottom surface of the recessed portion 41aα is inclined at the same angle as the extending direction of the extended piece 33D. In FIG. 17, the cross-sectional shape of the protruding portion 41bγ of the main plate portion 41Dα is triangular, and the inclination angle of the upper surface of the protruding portion 41bγ is substantially the same as the inclination angle of the bottom surface of the recessed portion 41aα, but it is not limited to this.

[0113] (Embodiment 4) Next, Embodiment 4 will be described with reference to FIG. 18. FIG. 18 is a cross-sectional view of an LED lighting device 3E used in the LED lighting fixture according to Embodiment 4.

[0114] The LED lighting device 3E according to the present embodiment is different from the LED lighting device 3A according to the above-described Embodiment 1 in the configuration of the extended piece 33E of the cover member 30E and the configuration of the main plate portion 41E of the frame 40E.

[0115] Specifically, a bent portion 33Ea having an L-shaped cross-section is formed at the tip of the extended piece 33E of the cover member 30E. A hole portion 41d is formed in the main plate portion 41E of the frame 40E. In the present embodiment, the hole portion 41d is formed in the recessed portion 41a. Specifically, the hole portion 41d is formed so as to dent the bottom surface of the end portion on the substrate 10 side of the recessed portion 41a. The tip of the extended piece 33E is fitted into the hole portion 41d provided in the main plate portion 41E of the frame 40E.

[0116] Regarding the configurations other than the cover member 30E and the frame 40E, the LED lighting device 3E in the present embodiment is the same as the LED lighting device 3A in the above-described Embodiment 1.

[0117] As described above, also in the LED lighting device 3E according to the present embodiment, similar to the above-described Embodiment 1, the extended piece 33E of the cover member 30E is located in the recessed portion 41a provided in the first main board portion 41E of the frame 40E.

[0118] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33E.

[0119] Further, in the LED lighting device 3E according to the present embodiment, the tip of the extended piece 33E of the cover member 30E is fitted into the hole portion 41d provided in the main board portion 41E of the frame 40E.

[0120] With this configuration, since the extended piece 33E is caught by the hole portion 41d, it becomes difficult for the cover member 30E to come off from the frame 40E.

[0121] (Embodiment 5) Next, Embodiment 5 will be described with reference to FIG. 19. FIG. 19 is a cross-sectional view of an LED lighting device 3F used in an LED lighting fixture according to Embodiment 5.

[0122] The LED lighting device 3F according to the present embodiment is different from the LED lighting device 3A according to the above-described Embodiment 1 in the structure of the connection portion between the extended piece 33 of the cover member 30A and the recessed portion 41a of the frame 40. Specifically, in the above-described Embodiment 1, the extended piece 33 and the recessed portion 41a were in contact with each other, but in the present embodiment, the extended piece 33 and the recessed portion 41a are not in contact with each other, and there is a gap between the extended piece 33 and the recessed portion 41a.

[0123] Specifically, in the LED lighting device 3F of the present embodiment, a screw 60 is screwed into a through hole provided in the recess 41a. The screw 60 functions as a functional component mounting member for mounting functional components such as the power supply device 4 or mounting brackets such as hook brackets to the frame 40. The functional components such as the power supply device 4 or the mounting bracket are arranged on the side opposite to the substrate 10 side of the frame 40 (the cover main body portion 31A side of the cover member 30A) and are mounted on the frame 40. That is, the functional components are arranged inside the frame 40.

[0124] In the present embodiment, the screw 60 is screwed from the inside to the outside of the frame 40. Therefore, on the outside of the recess 41a (the cover main body portion 31A side), the screw shaft of the screw 60 exists. Specifically, the surface of the extended piece 33 located in the recess 41a on the recess 41a side is in contact with the end portion of the screw shaft of the screw 60. As a result, a gap exists between the extended piece 33 and the recess 41a. Thus, in the present embodiment, the extended piece 33 covers the screw 60. Specifically, the extended piece 33 covers the screw shaft of the screw 60.

[0125] As described above, also in the LED lighting device 3F according to the present embodiment, similar to the first embodiment, the extended piece 33 of the cover member 30 is located in the recess 41a provided in the first main board portion 41 of the frame 40.

[0126] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33.

[0127] Further, in the LED lighting device 3F according to the present embodiment, a screw 60 is provided in the recess 41a of the frame 40 as a functional component mounting member for mounting functional components such as the power supply device 4 to the frame 40, and the screw 60 is covered by the extended piece 33.

[0128] With this configuration, functional component mounting members such as the screw 60 can be stored by utilizing the space of the gap between the extended piece 33 and the recessed portion 41a. Also, by covering the functional component mounting member such as the screw 60 with the extended piece 33, it is possible to suppress the light of the LED 20 from being blocked or reflected by the functional component mounting member. Note that the functional component mounting member for attaching the functional component to the frame 40 is not limited to the screw 60, and other components such as caulking parts other than the screw 60 may be used.

[0129] Also, in the LED lighting device 3F shown in FIG. 19, the screw 60 was screwed into the through hole of the recessed portion 41a from the inside to the outside of the frame 40, but it is not limited to this. For example, like the LED lighting device 3Fα shown in FIG. 20, the screw 60 may be screwed into the through hole of the recessed portion 41a from the outside to the inside of the frame 40. In this case, the screw head of the screw 60 will be present on the outside of the recessed portion 41a (on the side of the cover main body portion 31A).

[0130] Also, in the LED lighting device 3F shown in FIG. 19, the extended piece 33 was in contact with the screw 60, but it is not limited to this. For example, like the LED lighting device 3Fα shown in FIG. 20, a cover member 30E having an extended piece 33E formed with a bent portion 33Ea may be used so that the extended piece 33E and the screw 60 do not come into contact. Note that in FIG. 20, the cover member 30E shown in FIG. 18 is used, but it is not limited to this. In this case, the tip of the bent extended piece 33E is in contact with the bottom surface of the recessed portion 41a, but it is not limited to this.

[0131] Also, in the LED lighting device 3F shown in FIG. 19, the surface of the extension piece 33 on the side of the recess 41a was in contact with the end of the screw shaft of the screw 60, but it is not limited to this. For example, like the LED lighting device 3Fβ shown in FIG. 21, the screw 60 may penetrate not only the recess 41a but also the extension piece 33. That is, the screw 60 may be screwed in so as to communicate with both the through hole provided in the recess 41a and the through hole provided in the extension piece 33. In this case, the screw 60 located in the recess 41a may function not as a functional component mounting member for mounting a functional component such as the power supply device 4 or the mounting bracket to the frame 40, but as a cover member mounting member for mounting the cover member 30A to the frame 40.

[0132] (Embodiment 6) Next, Embodiment 6 will be described with reference to FIG. 22. FIG. 22 is a cross-sectional view of the LED lighting device 3G used in the LED lighting fixture according to Embodiment 6.

[0133] Similar to the LED lighting device 3F according to the above Embodiment 5, in the LED lighting device 3G according to the present embodiment, the extension piece 33 and the recess 41a are not in contact with each other, and there is a gap between the extension piece 33 and the recess 41a.

[0134] And in the present embodiment, a conductive wire 70 is disposed in the recess 41a, and the conductive wire 70 is located in the gap between the extension piece 33 and the recess 41a. That is, the extension piece 33 covers the conductive wire 70. The conductive wire 70 is, for example, an electric wire or the like for supplying DC power from the power supply device 4 to the LED 20.

[0135] As described above, also in the LED lighting device 3G according to the present embodiment, similar to Embodiments 1 and 5 above, the extension piece 33 of the cover member 30A is located in the recess 41a provided in the first main board portion 41 of the frame 40.

[0136] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extension piece 33.

[0137] In addition, in the LED lighting device 3G according to the present embodiment, the conductive wire 70 is disposed in the recessed portion 41a, and the extended piece 33 covers the conductive wire 70.

[0138] With this configuration, the conductive wire 70 can be accommodated by using the space of the gap between the extended piece 33 and the recessed portion 41a. That is, the gap between the extended piece 33 and the recessed portion 41a can be used as a wiring space. Further, by covering the conductive wire 70 with the extended piece 33, it is possible to suppress the light of the LED 20 from being blocked or reflected by the conductive wire 70.

[0139] Note that, like the LED lighting device 3Gα shown in FIG. 23, the cover member 30E shown in FIG. 18 may be used. Thereby, since the tip of the bent extended piece 33E covers the side portion of the conductive wire 70, it is possible to suppress the conductive wire 70 from moving in the X-axis direction. That is, the position of the conductive wire 70 can be regulated by the extended piece 33E.

[0140] (Embodiment 7) Next, Embodiment 7 will be described with reference to FIG. 24. FIG. 24 is a cross-sectional view of an LED lighting device 3H used in an LED lighting fixture according to Embodiment 7.

[0141] The LED lighting device 3H according to the present embodiment is configured such that, in the LED lighting device 3A according to the above-described Embodiment 1, the functional component 80 further exhibits its function via the extended piece 33 of the cover member 30A and the recessed portion 41a of the frame 40.

[0142] The functional component 80 is, for example, various sensors such as a human sensor and a brightness sensor, a receiving unit (light receiving unit) such as a wireless receiving unit that receives a wireless dimming signal and an infrared receiving unit that receives an infrared remote control signal, or a display monitor or the like.

[0143] The functional component 80 is disposed on the side opposite to the substrate 10 side of the frame 40 (the cover main body portion 31A side of the cover member 30A). That is, the functional component 80 is disposed inside the frame 40. Specifically, the functional component 80 is disposed at a position facing the recessed portion 41a of the frame 40.

[0144] An extended piece 33 is disposed in the recessed portion 41a of the frame 40. In the present embodiment, a through hole 33a is provided in the extended piece 33. Further, a through hole 41a1 is provided in the recessed portion 41a. The through hole 33a and the through hole 41a1 are provided so as to communicate with each other. Further, signals received by the functional component 80 or signals output from the functional component 80 pass through the through hole 33a and the through hole 41a1.

[0145] As described above, also in the LED lighting device 3H according to the present embodiment, similar to the above-described Embodiment 1, the extended piece 33 of the cover member 30A is located in the recessed portion 41a provided in the first main board portion 41 of the frame 40.

[0146] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33.

[0147] Further, in the LED lighting device 3H according to the present embodiment, the functional component 80 disposed on the side opposite to the substrate 10 side of the frame 40 exhibits its function through the recessed portion 41a. Specifically, the functional component 80 exhibits its function through the recessed portion 41a and the extended piece 33.

[0148] Thereby, even if the extended piece 33 is disposed in the recessed portion 41a, the function of the functional component 80 can be exhibited through the recessed portion 41a and the extended piece 33.

[0149] In the LED lighting device 3H shown in FIG. 24, the functional component 80 was configured to function through both the recessed portion 41a and the extended piece 33, but it is not limited to this. For example, like the LED lighting device 3Hα shown in FIG. 25, the extended piece 33 does not extend to the through-hole 41a1 of the recessed portion 41a, and the functional component 80 may be configured to function through only the recessed portion 41a among the recessed portion 41a and the extended piece 33.

[0150] Further, the extended piece 33 is made of a translucent resin material, and signals such as radio waves or infrared rays can pass through the extended piece 33. Therefore, like the LED lighting device 3Hβ shown in FIG. 26, no through-hole is provided in the extended piece 33, and the extended piece 33 may extend beyond the through-hole 41a1 of the recessed portion 41a. Although not shown, similarly for the main board portion 41 of the frame 40, by configuring the main board portion 41 with a resin material, signals such as radio waves or infrared rays can pass through without providing a through-hole in the main board portion 41.

[0151] (Embodiment 8) Next, Embodiment 8 will be described with reference to FIG. 27. FIG. 27 is a cross-sectional view of an LED lighting device 3I used in the LED lighting fixture according to Embodiment 8.

[0152] The LED lighting device 3I according to the present embodiment has a configuration in which a conductive wire 90 is arranged near the stepped portion of the recessed portion 41a of the frame 40 in the LED lighting device 3A according to the above Embodiment 1.

[0153] The conductive wire 90 is a thick wire, for example, a VVF cable drawn from a power terminal block attached inside the frame 40. The conductive wire 90 drawn from the power terminal block is connected to the power supply device 4. Since such a conductive wire 90 is relatively hard, there is a risk that when a construction worker installing the LED lighting fixture routes the conductive wire 90, the conductive wire 90 hits the frame 40 and deforms the frame 40.

[0154] Therefore, since the stepped portion (rising portion) of the main board portion 41 provided with the recessed portion 41a has a structure with high mechanical strength, the conductive wire 90 is arranged near the stepped portion of the recessed portion 41a. Thereby, even if the conductive wire 90 hits the stepped portion of the main board portion 41, deformation of the frame 40 can be suppressed.

[0155] As described above, also in the LED lighting device 3I according to the present embodiment, similar to the above-described Embodiment 1, the extended piece 33 of the cover member 30A is located in the recessed portion 41a provided in the first main board portion 41 of the frame 40.

[0156] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33.

[0157] (Embodiment 9) Next, Embodiment 9 will be described with reference to FIG. 28. FIG. 28 is a cross-sectional view of an LED lighting device 3J used in the LED lighting fixture according to Embodiment 9.

[0158] The LED lighting device 3J according to the present embodiment is different in the configuration of the cover member 30J from the LED lighting device 3 according to the above-described Embodiment 1.

[0159] Specifically, in the LED lighting device 3J according to the present embodiment, the cover member 30J has a portion different from the portion located in the recessed portion 41a in the extended piece 33J, and the reflectance of the surface of the portion located in the recessed portion 41a in the extended piece 33J is higher than the reflectance of the surface of the portion different from the portion located in the recessed portion 41a in the extended piece 33J.

[0160] The cover member 30J in this embodiment has a cover main body portion 31, a mounting portion 32J, and an extension piece 33J, similar to the cover member 30 in the first embodiment. However, the mounting portion 32J and the extension piece 33J in this embodiment are made of a material different from that of the mounting portion 32 and the extension piece 33 in the first embodiment. Specifically, the mounting portion 32J and the extension piece 33J are made of a material with a higher reflectivity than the cover main body portion 31. As an example, the mounting portion 32J and the extension piece 33J are non-translucent and made of a white resin material. Note that the mounting portion 32J and the extension piece 33J may have translucency as long as they are made of a material with a higher surface reflectivity than the cover main body portion 31.

[0161] Regarding the cover main body portion 31, the cover member 30J in this embodiment is made of the same material as the cover member 30 in the first embodiment. Also, the cover member 30J in this embodiment has the same overall shape as the cover member 30 in the first embodiment.

[0162] Also, the cover member 30J in this embodiment is formed of two types of resin materials: a first resin material that constitutes the cover main body portion 31 and a second resin material that constitutes the mounting portion 32J and the extension piece 33J. In this case, the cover main body portion 31, the mounting portion 32J, and the extension piece 33J can be formed by two-color molding.

[0163] As described above, also in the LED lighting device 3J according to this embodiment, similar to the first embodiment, the extension piece 33J of the cover member 30J is located in the recessed portion 41a provided in the first main board portion 41 of the frame 40.

[0164] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extension piece 33J.

[0165] In the LED lighting device 3J according to the present embodiment, the reflectance of the surface of the portion located in the recess 41a of the extended piece 33J of the cover member 30J is higher than the reflectance of the surface of the portion different from the portion located in the recess 41a of the extended piece 33J. Specifically, the reflectance of the surface of the extended piece 33J located in the recess 41a is higher than the reflectance of the surface of the cover main body 31 (an example of a portion different from the portion located in the recess 41a of the extended piece 33J).

[0166] With this configuration, the light emitted from the LED 20, reflected by the inner surface of the cover main body 31 or the like, and reaching the extended piece 33J can be reflected by the extended piece 33J. Thereby, it is possible to prevent the light of the LED 20 from entering the inside of the extended piece 33J and guiding the extended piece 33J and the attachment portion 32J. In addition, by reflecting the light of the LED 20 with the extended piece 33J, the light extraction efficiency can be improved.

[0167] In the LED lighting device 3J shown in FIG. 28, the cover main body 31, the attachment portion 32J, and the extended piece 33J are made of different materials, but it is not limited to this. For example, in the cover member 30Jα of the LED lighting device 3Jα shown in FIG. 29, a part of the cover main body 31α and another part of the cover main body 31α may be made of different materials, and another part of the cover main body 31α, the cover main body 31α, the attachment portion 32J, and the extended piece 33J may be made of the same material. In FIG. 29, the ceiling side portion (the lower side portion in the figure) of the protruding portion 31a of the cover main body 31α is made of the same material as the attachment portion 32J and the extended piece 33J. As an example, the ceiling side portion of the protruding portion 31a of the cover main body 31α, the attachment portion 32J, and the extended piece 33J can be made of a white resin material, and the floor side portion (the upper side portion in the figure) of the protruding portion 31a of the cover main body 31α can be made of a resin material having translucency and diffusibility.

[0168] Alternatively, like the LED lighting device 3Jβ shown in FIG. 30, only the extended piece 33Jβ of the cover member 30Jβ may be made of a different material. As an example, the extended piece 33Jβ can be made of a white resin material, and the cover main body portion 31 and the attachment portion 32 can be made of a resin material having translucency and diffusibility.

[0169] (Embodiment 10) Next, Embodiment 10 will be described with reference to FIG. 31. FIG. 31 is a cross-sectional view of an LED lighting device 3K used in the LED lighting fixture according to Embodiment 10.

[0170] The LED lighting device 3K according to the present embodiment is different from the LED lighting device 3A according to Embodiment 1 above in the configurations of the cover member 30K and the frame 40K.

[0171] Specifically, in the LED lighting device 3A according to Embodiment 1 above, the lengths of the pair of attachment portions 32 of the cover member 30 in the Z-axis direction are the same as each other, and the lengths of the pair of side plate portions 42 of the frame 40 in the Z-axis direction are the same as each other. However, in the LED lighting device 3K according to the present embodiment, the length of one of the pair of attachment portions 32K of the cover member 30K in the Z-axis direction is shorter than the length of the other of the pair of attachment portions 32K in the Z-axis direction, and the length of one of the pair of side plate portions 42K of the frame 40K in the Z-axis direction is shorter than the length of the other of the pair of side plate portions 42K in the Z-axis direction.

[0172] More specifically, as shown in FIG. 31, the pair of attachment portions 32K of the cover member 30K has opposing first attachment portion 32K1 and second attachment portion 32K2, and the length of the first attachment portion 32K1 in the Z-axis direction (leg length) is longer than the length of the second attachment portion 32K2 in the Z-axis direction (leg length). Further, the pair of side plate portions 42K of the frame 40K has opposing first side plate portion 42K1 and second side plate portion 42K2, and the length of the first side plate portion 42K1 in the Z-axis direction (leg length) is longer than the length of the second side plate portion 42K2 in the Z-axis direction (leg length). Note that the lengths of the first attachment portion 32K1 and the first side plate portion 42K1 in the Z-axis direction are the same as the lengths of the attachment portion 32 and the side plate portion 42 in the Z-axis direction in the above-described Embodiment 1.

[0173] As described above, also in the LED lighting device 3K according to the present embodiment, similar to the above-described Embodiment 1, the extension piece 33 of the cover member 30K is located in the recessed portion 41a provided in the first main plate portion 41 of the frame 40K.

[0174] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extension piece 33.

[0175] Further, in the LED lighting device 3K according to the present embodiment, in the frame 40K, the length of one of the pair of side plate portions 42K is shorter than the length of the other of the pair of side plate portions 42K.

[0176] With this configuration, while ensuring the strength of the frame 40K, it is possible to secure a space for arranging functional components such as the power supply device 4 and wiring inside the frame 40K.

[0177] (Embodiment 11) Next, Embodiment 11 will be described with reference to FIG. 32. FIG. 32 is a cross-sectional view of an LED lighting device 3L used in the LED lighting fixture according to Embodiment 11.

[0178] The LED lighting device 3L according to the present embodiment has a different configuration of the frame 40L from the LED lighting device 3A according to the above-described Embodiment 1.

[0179] Specifically, in the LED lighting device 3A according to the first embodiment, the recessed portions 41a of the frame 40 were provided at both ends in the short side direction of the main board portion 41. However, in the LED lighting device 3L according to the present embodiment, the recessed portions 41a of the frame 40L are provided only at one of the both ends in the short side direction of the main board portion 41L.

[0180] Both of the pair of extended pieces 33 of the cover member 30A are in contact with the surface of the main board portion 41L of the frame 40L. However, since the recessed portion 41a of the frame 40L is provided only on one side, one of the pair of extended pieces 33 is located in the recessed portion 41a, while the other of the pair of extended pieces 33 is not located in the recessed portion 41a. Therefore, the pair of extended pieces 33 are formed at different heights.

[0181] As described above, also in the LED lighting device 3L according to the present embodiment, similar to the first embodiment, the extended piece 33 of the cover member 30A is located in the recessed portion 41a provided in the first main board portion 41L of the frame 40L.

[0182] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33.

[0183] In the LED lighting device 3L in the present embodiment, only one of the pair of extended pieces 33 of the cover member 30A is located in the recessed portion 41a of the frame 40L. For this reason, there is a possibility that the light emitted from the LED 20 may reach the other of the pair of extended pieces 33. However, if it is a lighting fixture of a type that emits light from only one side as in the LED lighting fixture 1L shown in FIG. 33, even if the light of the LED 20 reaches the other of the pair of extended pieces 33 when the LED lighting device 3L of FIG. 32 is used, the influence can be ignored. The fixture body 2L used in the LED lighting fixture 1L of FIG. 33 has a reflector 2c and is structured to emit light from only one side in the X-axis direction.

[0184] (Embodiment 12) Next, Embodiment 12 will be described with reference to FIG. 34. FIG. 34 is a cross-sectional view of an LED lighting device 3M used in the LED lighting fixture according to Embodiment 12.

[0185] The LED lighting device 3M according to the present embodiment has a different frame 40M configuration from the LED lighting device 3A according to Embodiment 1 above.

[0186] Specifically, the frame 40M in the present embodiment is composed of two parts, a first frame member 40a and a second frame member 40b. The first frame member 40a is a frame body having a main board portion 41M and side plate portions 42. The second frame member 40b is a bent member made of a metal plate. The second frame member 40b is bent so as to have a step. The second frame member 40b is a support member that supports the substrate 10 by pressing both end portions in the short side direction of the substrate 10 from above.

[0187] In the present embodiment, the recessed portion 40b1 of the frame 40M is provided in the second frame member 40b, and no recessed portion is formed in the main board portion 41M. The lower portion of the step of the second frame member 40b functions as the recessed portion 40b1. And the extended piece 33 of the cover member 30A is located in the recessed portion 40b1 of the second frame member 40b.

[0188] As described above, also in the LED lighting device 3M according to the present embodiment, similar to Embodiment 1 above, the extended piece 33 of the cover member 30A is located in the recessed portion 40b1 of the frame 40M.

[0189] With this configuration, it is possible to suppress the light emitted from the LED 20 from reaching the extended piece 33.

[0190] (Other Modification Examples) As described above, the LED lighting fixture and the LED lighting device according to the present invention have been described based on Embodiments 1 to 12, but the present invention is not limited to these Embodiments 1 to 12.

[0191] For example, in the above-described Embodiment 1 and the like, the entire substrate 10 was in contact with the metal portion of the main board portion 41 of the frame 40, but it is not limited thereto. Specifically, as shown in the LED lighting device 3N shown in FIG. 35, an opening 41e is formed in the main board portion 41N of the frame 40N, and a part of the second surface 10b of the substrate 10 may be configured to be exposed from the opening 41e of the frame 40N. In this case, instead of bringing the second surface 10b of the substrate 10 into contact with the outer surface of the main board portion 41N of the frame 40N, as in the LED lighting device 3Nα shown in FIG. 36, the first surface 10a of the substrate 10 may be brought into contact with the inner surface of the main board portion 41N of the frame 40N. That is, the substrate 10 may be disposed inside the frame 40N instead of outside. Further, when the substrate 10 is disposed inside the frame 40N, a support member 100 for supporting the substrate 10 may be separately disposed as in the LED lighting device 3Nβ shown in FIG. 37. Note that, as the frame 40N having the main board portion 41N in which the opening 41e is formed, a frame having the configuration shown in FIG. 38 can be used. In the frame 40N shown in FIG. 38, three openings 41e are formed in the main board portion 41N, but it is not limited thereto.

[0192] Also, in the above-described Embodiment 1 and the like, the substrate 10 was fixed to the frame 40 by the claw portion 43 provided on the main board portion 41 of the frame 40, but it is not limited thereto. For example, as in the LED lighting device 3O shown in FIG. 39, the substrate 10 and the main board portion 41 of the frame 40 may be fixed by an adhesive 110. The adhesive 110 is inserted between the substrate 10 and the main board portion 41.

[0193] In the above-described Embodiment 1 and the like, an SMD type LED element in which an LED chip is mounted on a package is used as the LED 20, and the light-emitting module including the substrate 10 and the LED 20 is an SMD type LED module. However, the present invention is not limited to this. For example, the light-emitting module including the substrate 10 and the LED 20 may be a COB (Chip On Board) type LED module. In this case, as the LED 20, the LED chip (bare chip) itself may be used, and a plurality of LEDs 20 (LED chips) may be linearly arranged on the substrate 10 and encapsulated collectively or individually with a sealing member (for example, a phosphor-containing resin).

[0194] In the above-described Embodiment 1 and the like, a cover member 30 having diffusibility and translucency is used. However, the present invention is not limited to this. For example, instead of the cover member 30, a translucent cover having only translucency among diffusibility and translucency may be used. In this case, as the translucent cover, a transparent cover having a transmittance so high that the opposite side can be seen through may be used.

[0195] In addition, forms obtained by applying various modifications that can be conceived by those skilled in the art to the above-described embodiments, and forms realized by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention are also included in the present invention.

Explanation of Reference Numerals

[0196] 1, 1L LED lighting fixture 2, 2L Appliance body 3, 3A, 3B, 3C, 3Cα, 3Cβ, 3Cγ, 3D, 3Dα, 3E, 3F, 3Fα, 3Fβ, 3G, 3Gα, 3H, 3Hα, 3Hβ, 3I, 3J, 3Jα, 3Jβ, 3K, 3L, 3M, 3N, 3Nα, 3Nβ, 3O LED lighting device 10 Substrate 20 LED 30, 30A, 30B, 30D, 30E, 30J, 30Jα, 30Jβ, 30K Cover member 31, 31A, 31α Cover main body portion 31a, 31aA Protrusion 31b recess 32, 32B, 32J, 32K attachment parts 33, 33D, 33E, 33J, 33Jβ extended pieces 40, 40B, 40C, 40Cα, 40Cβ, 40Cγ, 40Dα, 40E, 40K, 40L, 40M, 40N frames 41, 41C, 41Cα, 41Cβ, 41Cγ, 41Dα, 41E, 41L, 41M, 41N main board parts 41a, 41aα, 40b1 depressions 41b, 41bα, 41bβ, 41bγ protrusions 41d holes 42, 42B, 42K side board parts 70 conductive wires 80 functional components 90 conductive wires

Claims

1. An LED lighting device detachably attached to a recess of an appliance body of an LED lighting fixture, comprising: a substrate on which LEDs are arranged; a frame having a long main board portion to which the substrate is attached; a cover member attached to the frame so as to cover the LEDs; the main board portion has a recess provided along the longitudinal direction of the main board portion at an end in the short side direction of the main board portion; the cover member has an extended piece at least a part of which is located in the recess; the extended piece extends along the short side direction of the main board portion; An LED lighting device.

2. The extended piece is in contact with the recess. The LED lighting device according to Claim 1.

3. The extended piece is in contact with the recess in a state of pressing the recess. The LED lighting device according to Claim 2.

4. Furthermore, it has a conductive wire disposed in the recess, and the extended piece covers the conductive wire. The LED lighting device according to Claim 1.

5. A part of the extended piece located in the recess exists at a position recessed from the light emitting surface of the LED. The LED lighting device according to any one of Claims 1 to 4.

6. The main board portion has protruding portions protruding toward the light emitting side of the LEDs on both sides of the portion where the substrate is attached, and a part of the extended piece located in the recess exists at a position lower than the protruding portions. The LED lighting device according to any one of Claims 1 to 5.

7. The tip of the extended piece is fitted into a hole provided in the main board portion. The LED lighting device according to any one of Claims 1 to 6.

8. The cover member has a portion different from the portion of the extended piece located in the recess, and the reflectance of the surface of the portion of the extended piece located in the recess is higher than the reflectance of the surface of the different portion. The LED lighting device according to any one of Claims 1 to 7.

9. The portion of the extended piece located in the recess and the different portion are formed by two-color molding. The LED lighting device according to Claim 8.

10. A cover member attachment member for attaching the cover member to the frame is provided in the recess. The LED lighting device according to any one of Claims 1 to 9.

11. It includes functional components arranged on the side of the frame opposite to the substrate side. A functional component mounting member for mounting the functional component to the frame is provided in the recessed portion. The functional component mounting member is covered by the extended piece. The LED lighting device according to any one of claims 1 to 10.

12. It includes a functional component disposed on the side of the frame opposite to the substrate side. The functional component exerts its function through the recessed portion. The LED lighting device according to any one of claims 1 to 11.

13. The tip of the extended piece abuts on the frame. The extended piece is inclined so as to spread outward from the tip to the rear end so that a space region is formed between the extended piece and the recessed portion. The LED lighting device according to any one of claims 1 to 12.

14. The cover member has a cover main body portion and a mounting portion that extends from the cover main body portion toward the frame side and is attached to the frame. The cover main body portion includes a protruding portion that protrudes outward from the mounting portion. The protruding portion does not have a recessed portion that is recessed on the side opposite to the frame side. The LED lighting device according to any one of claims 1 to 13.

15. The recessed portion is provided at each of both ends in the short side direction of the main board portion. The LED lighting device according to any one of claims 1 to 14.

16. The recessed portion is provided only at one of both ends in the short side direction of the main board portion. The LED lighting device according to any one of claims 1 to 14.

17. The frame has a pair of long side plate portions that stand up from each of both ends in the short side direction of the main board portion to the main board portion. The length of one of the pair of side plate portions is shorter than the length of the other of the pair of side plate portions. The LED lighting device according to any one of claims 1 to 16.

18. An LED lighting device according to any one of claims 1 to 17, and an appliance body that holds the LED lighting device. LED lighting fixture.

Images