JP7692181B2 - LED lighting device and LED lighting fixture - Google Patents

Description

The present invention relates to an LED lighting device and an LED lighting fixture equipped with an LED lighting device.

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

This type of LED lighting device comprises a long substrate, multiple LEDs mounted on the substrate, a long, translucent cover member that covers the multiple LEDs, and a long frame that supports the substrate and to which the cover member is attached.

In such an LED lighting device, the frame has, for example, a main plate to which the substrate is attached, and a pair of side plate portions bent from both ends of the main plate portion in the short direction (width direction). The cover member also has a cover main body portion, a pair of mounting portions extending from both ends of the cover main body portion in the width direction and attached to the pair of side plate portions of the frame, and a pair of extension pieces extending from each of the pair of mounting portions to press down on the ends of the main plate portion of the frame in the width direction.

JP 2015-176747 A

However, in conventional LED lighting devices, the extension piece of the cover member is placed on the widthwise end of the main plate of the frame, so some of the light emitted from the LED may reach the extension piece.

When the LED light reaches the extension piece in this way, it is blocked by the extension piece, which creates the problem that the ends of the LED lighting device in the width direction do not light up clearly.

In addition, because the extension piece is part of the cover member that has translucency, the LED light that reaches the extension piece may enter the interior of the extension piece. In this case, the LED light that enters the extension piece is guided through the extension piece and also through the attachment part connected to the extension piece, which can cause the light to leak from the end of the attachment part, etc.

The present invention was made in consideration of these problems, and aims to provide an LED lighting device and an LED lighting fixture that can prevent the light emitted from the LED from reaching the extension piece of the cover member.

In order to achieve the above object, one aspect of the LED lighting device according to the present invention comprises a substrate on which LEDs are arranged, a frame having a long main plate portion to which the substrate is attached, and a cover member attached to the frame so as to cover the LEDs, the main plate portion having a recessed portion provided along the longitudinal direction of the main plate portion at the short end portion of the main plate portion, and the cover member having an extension piece located in the recessed portion.

Another aspect of the LED lighting fixture according to the present invention comprises the above-mentioned LED lighting device and a fixture body that holds the LED lighting device.

Light emitted from the LED can be prevented from reaching the extension piece of the cover member.

FIG. 1 is a perspective view of an LED lighting device according to the first embodiment. FIG. 2 is an exploded perspective view of the LED lighting device according to the first embodiment. FIG. 3 is a cross-sectional view of the LED lighting device according to the first embodiment. FIG. 4 is a perspective view of the LED illumination device according to the first embodiment as viewed from the cover member side. FIG. 5 is a perspective view of the LED lighting device according to the first embodiment as viewed from the back side. FIG. 6 is a cross-sectional perspective view of the LED lighting device according to the first embodiment. FIG. 7 is an exploded perspective view of the LED lighting device according to the first embodiment. FIG. 8 is a cross-sectional view of an LED lighting device of a comparative example. FIG. 9 is a cross-sectional view of the LED lighting device according to the first embodiment. FIG. 10 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 1. As shown in FIG. FIG. 11 is a cross-sectional view of an LED lighting device according to Modification 2 of Embodiment 1. As shown in FIG. FIG. 12 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to the second embodiment. FIG. 13 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 2. As shown in FIG. FIG. 14 is a cross-sectional view of an LED lighting device according to Modification 2 of Embodiment 2. As shown in FIG. FIG. 15 is a cross-sectional view of an LED illumination device according to Modification 3 of Embodiment 2. In FIG. FIG. 16 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to the third embodiment. FIG. 17 is a cross-sectional view of an LED lighting device according to a modified example of the third embodiment. FIG. 18 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to the fourth embodiment. FIG. 19 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to the fifth embodiment. FIG. 20 is a cross-sectional view of an LED lighting device according to Modification 1 of Embodiment 5. As shown in FIG. FIG. 21 is a cross-sectional view of an LED illumination device according to Modification 2 of Embodiment 5. In FIG. FIG. 22 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to embodiment 6. FIG. 23 is a cross-sectional view of an LED illumination device according to a modified example of the sixth embodiment. FIG. 24 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to embodiment 7. FIG. 25 is a cross-sectional view of an LED illumination device according to Modification 1 of Embodiment 7. In FIG. FIG. 26 is a cross-sectional view of an LED illumination device according to Modification 2 of Embodiment 7. In FIG. FIG. 27 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to embodiment 8. FIG. 28 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to embodiment 9. FIG. 29 is a cross-sectional view of an LED illumination device according to Modification 1 of Embodiment 9. As shown in FIG. FIG. 30 is a cross-sectional view of an LED illumination device according to Modification 2 of Embodiment 9. In FIG. FIG. 31 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to embodiment 10. FIG. 32 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to embodiment 11. FIG. 33 is a cross-sectional view of an LED lighting device according to embodiment 11. FIG. 34 is a cross-sectional view of an LED lighting device used in an LED lighting fixture according to embodiment 12. FIG. 35 is a cross-sectional view of an LED illumination device according to the first modification. FIG. 36 is a cross-sectional view of an LED illumination device according to the second modification. FIG. 37 is a cross-sectional view of an LED illumination device according to the third modification. FIG. 38 is a perspective view showing the configuration of a frame used in the LED illumination device according to the first to third modifications. FIG. 39 is a cross-sectional view of an LED illumination device according to the fourth modification.

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

Note that each figure is a schematic diagram and is not necessarily a precise illustration. In addition, in each figure, the same reference numerals are used for substantially the same configuration, and duplicated explanations are omitted or simplified. In each figure, the X-axis, Y-axis, and Z-axis represent the three axes of a three-dimensional orthogonal coordinate system, and in this embodiment, the Z-axis direction is the vertical direction, and the direction perpendicular to the Z-axis (parallel to the XY plane) is the horizontal direction. The X-axis and Y-axis are mutually orthogonal, and both are orthogonal to the Z-axis. Note that in this specification, the terms "up" and "down" do not necessarily refer to the upward direction (vertically upward) and downward direction (vertically downward) in absolute spatial recognition.

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

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

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

In this embodiment, the fixture body 2 is made of sheet metal, and is formed into a long and flat box shape in the Y-axis direction by bending the metal plate. As shown in FIG. 2, the fixture body 2 is provided with a recess 2a having a rectangular opening surface. The recess 2a is provided in an elongated shape along the longitudinal direction of the fixture body 2. The recess 2a is a storage section for storing the LED lighting device 3, and is provided over approximately the entire length of the fixture body 2. In addition, as shown in FIG. 2 and FIG. 3, on both sides of the recess 2a in the width direction of the fixture body 2, there are inclined surfaces 2b that extend from the opening edge of the recess 2a and incline upward (towards the ceiling) as they go outward.

The LED lighting device 3 is a light source unit that uses an LED as a light source. The LED lighting device 3 is attached to the recess 2a of the fixture body 2 so that it can be freely attached and detached. For example, the LED lighting device 3 can be attached to the recess 2a of the fixture body 2, and the LED lighting device 3 attached to the recess 2a of the fixture body 2 can be removed from the recess 2a. The LED lighting device 3 and the fixture body 2 can be fixed by hooking and engaging mounting members such as a hook bracket and a kick spring provided on the LED lighting device 3 to the fixture body 2.

As shown in FIG. 3, the LED lighting device 3 emits light using power supplied from a power supply unit 4 housed in the fixture body 2. The power supply unit 4 is an example of an electrical functional component, and supplies power to the LED lighting device 3. The power supply unit 4 is disposed on the rear side of the LED lighting device 3. Specifically, the power supply unit 4 is disposed in a recess 2a of the fixture body 2. In this embodiment, the power supply unit 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 unit 4 may not be integrated with the LED lighting device 3, but may be disposed in the fixture body 2 separately from the LED lighting device 3.

The power supply device 4 is composed of a power supply circuit that generates power for illuminating the LED lighting device 3. For example, the power supply device 4 has a printed circuit board on which multiple electronic components are mounted, and a circuit case that houses the printed circuit board. The power supply device 4 converts AC power from an external power source, such as a commercial power source, into DC power of a predetermined level by rectifying, smoothing, stepping down, etc., and supplies the DC power to the LED lighting device 3.

The power supply unit 4 is supplied with AC power via a power terminal block 8 (see FIG. 2) to which a power line is connected that is inserted from the ceiling space through a through hole in the fixture body 2 and drawn out to the recess 2a of the fixture body 2. The power terminal block 8 is installed in the recess 2a of the fixture body 2.

Next, the detailed structure of the LED lighting device 3 will be described using Figs. 4 to 7 while referring to Figs. 1 to 3. Fig. 4 is a perspective view of the LED lighting device 3 according to embodiment 1 as seen from the cover member 30 side, and Fig. 5 is a perspective view of the LED lighting device 3 as seen from the back side. Fig. 6 is a cross-sectional perspective view of the LED lighting device 3. Fig. 7 is an exploded perspective view of the LED lighting device 3.

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

As shown in Figures 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 an end cap 50.

The substrate 10 is a mounting substrate for mounting the LED 20. In this embodiment, the substrate 10 is formed in a generally rectangular shape that is elongated in the longitudinal direction (Y-axis direction) of the frame 40. The thickness of the substrate 10 is, for example, 1.0 mm. The substrate 10 may have a length that is generally equal to the overall longitudinal length of the frame 40, or multiple substrates 10 may be arranged along the longitudinal direction of the frame 40. As shown in FIG. 7, in this embodiment, two substrates 10 are arranged along the longitudinal direction of the frame 40.

As shown in Figures 6 and 7, the substrate 10 has a first surface 10a, which is one surface, and a second surface 10b, which is the other surface facing away from the first surface 10a. The first surface 10a of the substrate 10 is the front surface on which the LEDs 20 are mounted. On the other hand, the second surface 10b of the substrate 10 is the back surface facing the frame 40. In this embodiment, the second surface 10b of the substrate 10 is in contact with the frame 40.

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

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

When the substrate 10 is made of a resin substrate, examples of the resin substrate that can be used include glass epoxy substrates (CEM-3, FR-4, etc.) made of glass fiber and epoxy resin, paper phenol substrates (FR-1, FR-2) made of craft paper or the like and phenol resin, paper epoxy substrates (FR-3) made of paper and epoxy resin, and polyimide substrates made of polyimide or the like. The substrate 10 may be a rigid substrate or a film-like flexible substrate.

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

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

The LEDs 20 are covered with a cover member 30. Specifically, all of the LEDs 20 are covered with the cover member 30. The cover member 30 is an example of a translucent cover that has translucency, and transmits light emitted from the LEDs 20. In this embodiment, the cover member 30 is not only translucent, but also a diffusion cover that has diffusion properties. Therefore, the light of the LEDs 20 that enters the cover member 30 passes through the cover member 30 while being diffused (scattered) by the cover member 30.

As shown in Figures 3 and 6, the cover member 30 covers the substrate 10. Specifically, the cover member 30 is disposed opposite the first surface 10a of the substrate 10 so as to cover the multiple LEDs 20.

In this embodiment, the cover member 30 covers the entire substrate 10 on which the LEDs 20 are arranged. As shown in Figs. 5 and 6, the cover member 30 further covers the entire frame 40 on which the substrate 10 is arranged. Therefore, the cover member 30 is formed in an elongated shape in the Y-axis direction, similar to the substrate 10 and the frame 40.

The cover member 30 is attached to the frame 40. The cover member 30 and the frame 40 form a cylindrical body, and the substrate 10 and the multiple LEDs 20 mounted on the substrate 10 are housed within this cylindrical body.

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

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

3 and 6, the cover body 31 includes a protrusion 31a that protrudes outward in the width direction of the cover body 31 from the mounting portion 32. The protrusions 31a are formed at both ends of the cover body 31 in the short direction (width direction). Each protrusion 31a does not have a recess that is recessed on the side opposite the frame 40. In other words, no recess is formed on the ceiling side of each protrusion 31a. Specifically, each protrusion 31a is formed in a V-shaped cross section in the XZ cross section, and the ceiling side portion of the protrusion 31a is formed to be in the same plane as the extension piece 33 via the mounting portion 32.

The mounting portion 32 is a portion that is attached to the frame 40. Specifically, the mounting portion 32 is attached to the side plate portion 42 of the frame 40. The mounting portion 32 is also an extension portion that extends from the cover body portion 31 toward the frame 40.

The mounting parts 32 are formed as a pair of legs that stand upright on the cover body part 31 from both ends of the cover body part 31 in the short side direction (X-axis direction). In this embodiment, the length of the pair of mounting parts 32 in the Z-axis direction is the same. As shown in FIG. 7, each of the pair of mounting parts 32 is formed elongated along the Y-axis direction. The length of the pair of mounting parts 32 in the Y-axis direction is also the same.

As shown in Figures 6 and 7, a recess 32a is formed on the inside of the tip of each of the pair of mounting portions 32 in the width direction (X-axis direction). A bent portion 42a provided at the tip of the side plate portion 42 of the frame 40 is fitted into this recess 32a, whereby the pair of mounting portions 32 of the cover member 30 and the pair of side plate portions 42 of the frame 40 are engaged and fixed to each other. As a result, the pair of mounting portions 32 of the cover member 30 are fixed and held to the frame 40 in a manner that embraces the frame 40.

As shown in Figures 3 and 6, the extension piece 33 is an extension portion that extends to reach the recessed portion 41a of the frame 40. Specifically, the extension piece 33 extends from the mounting portion 32 along the short side direction (X-axis direction) of the cover member 30. Therefore, the extension piece 33 is located more inward than the mounting portion 32. Specifically, the extension piece 33 extends in a direction parallel to the first surface 10a and the second surface 10b of the substrate 10. As an example, the extension piece 33 is a plate-shaped piece formed with a constant thickness.

At least a portion of the extension piece 33 is located in the recessed portion 41a. In this embodiment, the entire extension piece 33 is located in the recessed portion 41a. The extension piece 33 is fitted into the recessed portion 41a.

The portion of the extension piece 33 located in the recess 41a is recessed from the light emitting surface of the LED 20. In other words, the portion of the extension piece 33 located in the recess 41a is located closer to the ceiling than the light emitting surface of the LED 20, and does not protrude from the light emitting surface of the LED 20 toward the floor. In this embodiment, the extension piece 33 is located closer to the ceiling than the outer surface of the portion of the main board 41 where the recess 41a is not formed. In other words, the entire extension piece 33 is stored within the recess 41a so as not to protrude from the recess 41a.

The extension piece 33 functions as a stopper that presses the main plate portion 41 of the frame 40. In other words, the extension piece 33 prevents the frame 40 from shifting toward the light emission side (floor side) of the LED 20. In this embodiment, the extension piece 33 presses the main plate portion 41 from the floor side (light emission side of the LED 20) toward the ceiling side, thereby preventing the frame 40 from shifting toward the floor side. Specifically, the extension piece 33 presses the recessed portion 41a provided in the main plate portion 41. Therefore, the extension piece 33 abuts against the recessed portion 41a. In this embodiment, the extension piece 33 abuts against the recessed portion 41a while pressing against the recessed portion 41a. By attaching the cover member 30 to the frame 40, the extension piece 33 is in a state of pressing against the recessed portion 41a.

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

The extension pieces 33 stand upright from each of the pair of mounting portions 32. That is, the cover member 30 has a pair of extension pieces 33. In this embodiment, the pair of extension pieces 33 have the same length in the X-axis direction. As shown in FIG. 7, each of the pair of extension pieces 33 is formed elongated along the Y-axis direction. The pair of extension pieces 33 also have the same length in the Y-axis direction. As an example, the pair of extension pieces 33 have the same shape, but are not limited to this. The pair of extension pieces 33 are also provided at the same height in the Z-axis direction.

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

The cover member 30 may be configured by forming a milky light diffusion film containing a light diffusion material on the surface (inner or outer surface) of the transparent cover, rather than dispersing a light diffusion material inside. The cover member 30 may also be configured to have light diffusion properties by performing a diffusion process, rather than using a light diffusion material. For example, the cover member 30 may be configured to have light diffusion properties by forming minute irregularities on the surface of the transparent cover by performing a surface treatment such as embossing, or by printing a dot pattern on the surface of the transparent cover. Even when the cover member 30 is diffusion processed, it may further contain a light diffusion material to enhance light diffusion properties.

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

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

As an example, the frame 40 is a frame made of sheet metal. 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 plate). In this embodiment, the frame 40 is formed so that the cross section (XZ cross section) when cut along the X-axis direction is approximately U-shaped. The frame 40 is also formed long in the Y-axis direction, similar to the substrate 10 and the device 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 this embodiment.

As shown in Figures 3 to 7, the frame 40 has a plate-shaped main plate portion 41 to which the substrate 10 is attached, and a pair of plate-shaped side plate portions 42 to which the frame 40 is attached. As shown in Figure 7, the main plate portion 41 and the pair of side plate portions 42 are elongated and extend in the Y-axis direction.

The main plate portion 41 is the main body of the frame 40, and as shown in Figures 3 and 6, the substrate 10 is placed on the main plate portion 41. In other words, the main plate portion 41 supports the substrate 10. In this embodiment, the substrate 10 and the main plate portion 41 are in contact with each other.

The main plate portion 41 has a recessed portion 41a. The recessed portion 41a has a concave shape on the surface of the main plate portion 41 facing the light-emitting surface of the LED 20. Specifically, the recessed portion 41a is formed by recessing a part of the main plate portion 41 toward the ceiling. In this case, the recessed portion 41a can be formed, for example, by pressing a part of the main plate portion 41 so that it is recessed toward the ceiling. Therefore, the plate thickness of the bottom of the recessed portion 41a is the same as the plate thickness of the part of the main plate portion 41 where the recessed portion 41a is not formed.

The recessed portion 41a is provided at the end of the main plate portion 41 in the short side direction (X-axis direction). Specifically, in this embodiment, the recessed portion 41a is provided at each of both ends of the main plate portion 41 in the short side direction. Specifically, each recessed portion 41a is formed at the connection portion between the main plate portion 41 and the side plate portion 42 so as to eliminate corners between the main plate portion 41 and the side plate portion 42.

The recessed portion 41a is provided along the longitudinal direction (Y-axis direction) of the main plate portion 41. In this embodiment, the recessed portion 41a is provided over the entire longitudinal length of the main plate portion 41. As an example, the width of the recessed portion 41a is greater than the depth, but this is not limited to this. The two recessed portions 41a have the same shape and size, but this is not limited to this. In other words, the depth and width of the two recessed portions 41a are the same, but this is not limited to this.

As described above, the extension piece 33 of the cover member 30 is located in the recessed portion 41a. Specifically, the extension piece 33 is housed in the recessed portion 41a. The recessed portion 41a is also pressed toward the ceiling by the pressure from the extension piece 33. In other words, the main plate portion 41 of the frame 40 is pressed toward the ceiling by the extension piece 33.

As shown in FIG. 7, the main plate 41 has claws 43 formed by cutting out a portion of the sheet metal frame 40, and the circuit board 10 placed on the main plate 41 is fixed to the main plate 41 by being engaged with the claws 43. The main plate 41 also has through holes through which conductive wires are inserted to electrically connect the wiring of the circuit board 10 to the power supply 4.

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 of the main plate portion 41 in the short side direction (X-axis direction). The pair of side plate portions 42 are formed so as to stand on the main plate portion 41 from both ends of the main plate portion 41 in the short side direction (X-axis direction). For example, the pair of side plate portions 42 and the main plate portion 41 can be formed by bending a metal plate at approximately 90 degrees.

The mounting 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, the tip of the side plate portion 42 is provided with a bent portion 42a that is curled outward, and the bent portion 42a of the side plate portion 42 is snapped into and fitted into the recess 32a provided in the mounting portion 32 of the cover member 30, thereby fixing the cover member 30 to the frame 40.

A long cylindrical body is formed by fixing the cover member 30 and the frame 40. End caps 50 are attached to both ends of the cylindrical body formed by the cover member 30 and the frame 40 in the longitudinal direction.

In this embodiment, the end cap 50 is provided to close the open end of the cylinder formed by the cover member 30 and the frame 40. In other words, the end cap 50 is attached to the cylinder so as to cover the open end of the cylinder formed by the cover member 30 and the frame 40, and closes the open end of the cylinder. This makes it possible to prevent dust, insects, etc. from entering the inside of the cylinder formed by the cover member 30 and the frame 40. Note that the end cap 50 may not completely close the open end of the cylinder formed by the cover member 30 and the frame 40, and there may be a small gap between the end cap 50 and the frame 40.

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

The end cap 50 is made of a resin material. The end cap 50 may or may not have translucency. The end cap 50 that has translucency is made of a transparent resin material such as polycarbonate or acrylic. The end cap 50 may have translucency and diffusivity. In this case, the end cap 50 may be made of the same material as the cover member 30, or may be made of a material different from that of the cover member 30.

The LED lighting device 3 thus configured is stored in the recess 2a of the fixture body 2 and attached to the fixture body 2. Specifically, the LED lighting device 3 is attached to the fixture body 2 using the hook fitting 5 and the elastic holding member 6 shown in Figs. 4 and 5. The hook fitting 5 and the elastic holding member 6 are fixed to the frame 40. Specifically, the hook fitting 5 made of sheet metal is fixed to the frame 40 by a screw. The elastic holding member 6 is a spring such as a kick spring, and is fixed to the frame 40 by a fixing fitting fixed to the frame 40. The hook fitting 5 is fixed to one end of the frame 40 in the short direction, and the elastic holding member 6 is fixed to the other end of the frame 40 in the short direction. As an example, two hook fittings 5 and two elastic holding members 6 are provided, but this is not limited to this. The hook fittings 5 and the elastic holding members 6 are provided at positions facing each other in the short direction of the frame 40, but this is not limited to this.

When attaching the LED lighting device 3 to the fixture body 2, the hook fitting 5 is hooked to a slit formed in the fixture body 2 to hang the LED lighting device 3 in a cantilevered state, and the LED lighting device 3 is rotated around the hook fitting 5 as a fulcrum, pushing it up into the recess 2a of the fixture body 2 and engaging the elastic retaining member 6 with the receiving fitting provided on the fixture body 2. This allows the LED lighting device 3 to be attached to the fixture body 2.

Next, the effects of the LED lighting device 3 according to this embodiment will be described with reference to Figs. 8 and 9. Fig. 8 is a cross-sectional view of an LED lighting device 3X of a comparative example. Fig. 9 is a cross-sectional view of the LED lighting device 3 according to the above-mentioned embodiment 1. In Figs. 8 and 9, the straight arrows indicate a portion of the light emitted from the LED 20.

The LED lighting device 3X of the comparative example shown in FIG. 8 has a different configuration of the cover member 30X and the frame 40X from the LED lighting device 3 of the present embodiment. Specifically, in the LED lighting device 3X of the comparative example, the cover member 30X has a cover body portion 31X, a pair of mounting portions 32X, and a pair of extension pieces 33X, similar to the cover member 30 of the LED lighting device 3 of the present embodiment, and the frame 40X has a main plate portion 41X and a pair of side plate portions 42, similar to the frame 40 of the LED lighting device 3 of the present embodiment, but in the LED lighting device 3X of the comparative example, the main plate portion 41X of the frame 40X does not have a recessed portion. Therefore, in the LED lighting device 3X of the comparative example, the pair of extension pieces 33X of the cover member 30X are placed on the end of the main plate portion 41X in the short direction (X-axis direction) without being located in the recessed portion of the main plate portion 41X.

For this reason, as shown in FIG. 8, in the comparative LED lighting device 3X, some of the light emitted from the LED 20 may reach the extension piece 33X. Specifically, light emitted from the LED 20 at a low angle may reach the extension piece 33X.

As a result, a portion of the light emitted from the LED 20 is blocked by the extension piece 33X, and the end of the LED lighting device 3X in the short direction (X-axis direction) does not shine clearly. For example, a streak-like difference in brightness may appear along the longitudinal direction (Y-axis direction) on the light-emitting surface of the end of the short direction of the cover member 30X.

In addition, because the extension piece 33X is part of the cover member 30X, which has translucency, the light of the LED 20 that reaches the extension piece 33X enters the inside of the extension piece 33X. In this case, the light of the LED 20 that enters the extension piece 33X is guided through the extension piece 33X and also through the mounting part 32X connected to the extension piece 33X, and light may leak from the end of the mounting part 32X, etc. As a result, the desired light distribution or desired lighting atmosphere may not be obtained.

In contrast, as shown in FIG. 9, in the LED lighting device 3 according to this embodiment, a recess 41a is provided in the main plate portion 41 of the frame 40, and the extension piece 33 of the cover member 30 is located in the recess 41a.

This configuration can prevent the light emitted from the LED 20 from reaching the extension piece 33. In particular, in this embodiment, the portion of the extension piece 33 located in the recess 41a is located at a position set back from the light emitting surface of the LED 20. This can further prevent the light emitted from the LED 20 from reaching the extension piece 33. Specifically, in this embodiment, the light emitted from the LED 20 is prevented from reaching the extension piece 33. For example, even if a portion of the light emitted from the LED 20 travels approximately parallel to the X-axis direction, the light is prevented from reaching the extension piece 33.

As a result, the light from the LEDs 20 is not blocked by the extension pieces 33, and it is possible to prevent differences in brightness on the light-emitting surface at the short-side end of the cover member 30. Therefore, compared to the LED lighting device 3X of the comparative example, the short-side end (X-axis direction) of the LED lighting device 3 can be illuminated more clearly.

In addition, since the light from the LEDs 20 does not reach the extension piece 33, the light from the LEDs 20 does not enter the extension piece 33. This prevents the light from the LEDs 20 from guiding through the extension piece 33 and the mounting part 32 and leaking from the end of the mounting part 32, etc. Therefore, it is possible to obtain the desired light distribution and the desired lighting atmosphere.

In the LED lighting device 3 of this embodiment, the recessed portions 41a of the frame 40 are provided at both ends of the main board portion 41 in the short direction (X-axis direction). In other words, the main board portion 41 is provided with a pair of recessed portions 41a sandwiching the LED 20. 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.

This configuration makes it possible to prevent the light emitted from the LEDs 20 to both sides of the frame 40 in the short side direction from reaching the extension pieces 33. In other words, it is possible to prevent the light of the LEDs 20 from reaching each of the pair of extension pieces 33. This makes it possible to prevent the occurrence of differences in brightness on the light-emitting surfaces of both ends of the cover member 30 in the short side direction. In other words, it is possible to prevent the occurrence of differences in brightness throughout the cover member 30. Therefore, the entire LED lighting device 3 can be illuminated beautifully.

In addition, since the light from the LEDs 20 does not reach each of the pair of extension pieces 33, the light from the LEDs 20 does not enter any of the pair of extension pieces 33. This prevents the light from the LEDs 20 from being guided through the pair of extension pieces 33 and leaking from the ends of the pair of mounting parts 32, etc. Therefore, it is possible to easily obtain the desired light distribution and the desired lighting atmosphere.

In the LED lighting device 3 of this embodiment, the extension piece 33 abuts against the recessed portion 41a. Specifically, the extension piece 33 abuts against the recessed portion 41a while pressing against the recessed portion 41a.

With this configuration, the extension piece 33 can press down on the main plate portion 41, preventing the frame 40 from shifting out of position. In particular, it prevents the frame 40 from shifting in the Z-axis direction.

In addition, in the LED lighting device 3 of this embodiment, the cover body 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 recessed portion on the side opposite the frame 40.

If a recess is formed on the portion of the protrusion 31a opposite the frame 40 side, dead insects and foreign matter may accumulate in this recess, causing the short-side end of the cover body 31 to not shine clearly. In contrast, in this embodiment, no recess is formed on the portion of the protrusion 31a opposite the frame 40 side, so dead insects and foreign matter do not accumulate on the short-side end of the cover body 31. This allows the short-side end of the cover body 31 to shine clearly.

In this embodiment, the protrusion 31a of the cover body 31 does not have a recess on the side opposite the frame 40, but this is not limited to the above. For example, as in the LED lighting device 3A shown in FIG. 10, the protrusion 31aA of the cover body 31A of the cover member 30A may have a recess 31b on the side opposite the frame 40. This also applies to the following embodiments. In other words, in the following embodiments 2 to 12, either the cover member 30 or the cover member 30A may be used.

In addition, in this 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 on the mounting portion 32 of the cover member 30, but this is not limited to the above. 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. In other words, the mounting portion 32B of the cover member 30B does not have to be structured to embrace the frame 40B. In this case, the cover member 30B and the frame 40B are fixed by screws or the like.

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

The LED lighting device 3C according to this embodiment differs from the LED lighting device 3A according to the above-mentioned embodiment 1 in the configuration of the frame 40C. Specifically, the frame 40C in this embodiment has a structure in which the main plate portion 41C has a protrusion portion 41b.

The protrusions 41b protrude toward the light emission side of the LED 20 on both sides of the portion of the main plate 41C where the substrate 10 is attached. In other words, a pair of protrusions 41b are provided to sandwich the substrate 10. Each of the pair of protrusions 41b protrudes toward the cover body 31A side of the cover member 30A. In this embodiment, each protrusion 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 protrusion 41b is formed over the entire length of the main plate 41C in the longitudinal direction. The pair of protrusions 41b have the same shape, but this is not limited to this.

The protruding portion 41b is formed by providing a recess 41c in the main plate portion 41C. The substrate 10 is placed in the recess 41c. In other words, the recess 41c is a substrate placement portion in the main plate portion 41C. The recess 41c can be formed by press processing, similar to the recess 41a. In this embodiment, the depth of the recess 41c is the same as the depth of the recess 41a. In other words, the bottom surface of the recess 41c and the bottom surface of the recess 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 stored in the recess 41c without protruding from the recess 41c. In this embodiment, the protruding portion 41b is formed by providing the recess 41c in the main plate portion 41C, but this is not limited to this. In other words, the protruding portion 41b may be formed without providing the recess 41c in the main plate portion 41C.

The width (length in the X-axis direction) of the recess 41c formed in the main plate portion 41C is the same as the width of the substrate 10. This allows the pair of protrusions 41b formed on both sides of the recess 41c to prevent the substrate 10 from moving in the width direction. In other words, the pair of protrusions 41b can regulate the position of the substrate 10 in the width direction. Note that the width of the recess 41c does not have to be the same as the width of the substrate 10. In other words, there may be a gap between the side wall surface of the protrusions 41b and the side surface of the substrate 10.

In this embodiment, the extension piece 33 of the cover member 30A is also located in the recessed portion 41a of the main plate portion 41C. In this case, the portion of the extension piece 33 located in the recessed portion 41a (the entire extension piece 33 in this embodiment) is located at a lower position than the protruding portion 41b. In other words, the thickness of the extension piece 33 is smaller than the height of the protruding portion 41b.

In this 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 this 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 the protruding portion 31a of the cover main body portion 31 does not have a recess may also be used.

In addition, with respect to the configuration other than the frame 40C, the LED lighting device 3C in this embodiment is the same as the LED lighting device 3A in the above-mentioned embodiment 1.

As described above, in the LED lighting device 3C according to this embodiment, as in the above-mentioned embodiment 1, the extension piece 33 of the cover member 30A is located in the recessed portion 41a provided in the main plate portion 41C of the frame 40C.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

In addition, in the LED lighting device 3C according to this embodiment, a protrusion 41b is provided on the main plate portion 41C of the frame 40C, and the portion located in the recessed portion 41a of the extension piece 33 of the cover member 30A is located at a lower position than the protrusion 41b.

This configuration further prevents the light emitted from the LED 20 from reaching the extension piece 33.

In this embodiment, the side wall surface of the protruding portion 41b of the frame 40C is perpendicular to the bottom surface of the recessed portion 41c, but this is not limited to the above. For example, as in 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, while only the side wall surface of the protruding portion 41bα facing the substrate 10 is inclined in FIG. 13, the side wall surface facing the extension piece 33 may be inclined, or both side wall surfaces of the protruding portion 41bα may be inclined.

In addition, in this embodiment, the main plate portion 41C of the frame 40C is formed so that the bottom surface of the recessed portion 41a and the bottom surface of the recessed portion 41c are at the same height position, but this 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 so that the bottom surface of the recessed portion 41a and the bottom surface of the recessed portion 41c are at different height positions. In other words, the depth of the recessed portion 41a and the depth of the recessed portion 41c may be different. In this case, as shown in FIG. 14, it is preferable to lengthen the inclined portion of the side wall surface of the protruding portion 41bβ on the substrate 10 side, and form the main plate portion 41Cβ in a shape such that the bottom surface of the recessed portion 41c is farther from the cover main body portion 31A than the bottom surface of the recessed portion 41a. In other words, it is preferable that the depth of the recessed portion 41c is deeper than the depth of the recessed portion 41a. This can further suppress the light emitted from the LED 20 from reaching the extension piece 33.

In addition, in this embodiment, the protrusion 41b provided on the main plate portion 41C is formed so that the cross-sectional shape in the XZ cross section is rectangular, but this is not limited to this. For example, as in the LED lighting device 3Cγ shown in FIG. 15, the protrusion 41bγ provided on the main plate portion 41Cγ of the frame 40Cγ may be formed so that the cross-sectional shape in the XZ cross section is triangular.

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

The LED lighting device 3D according to this embodiment is different from the LED lighting device 3A (FIG. 10) according to Variation 1 of the above-mentioned embodiment 1 in the configuration of the extension piece 33D of the cover member 30D. Specifically, in the above-mentioned embodiment 1, the extension piece 33 extends in a direction parallel to the first surface 10a and the second surface 10b of the substrate 10, but in this embodiment, the extension piece 33D extends so as to be inclined with respect to the first surface 10a and the second surface 10b of the substrate 10.

In this embodiment, the extension piece 33D extends such that its tip end (the end on the substrate 10 side) is farther from the cover body 31A than its rear end (the end on the mounting portion 32 side). Specifically, the extension piece 33D is inclined so that it spreads outward from its tip end to its rear end, so that a space region S is formed between the extension piece 33D and the recessed portion 41a of the frame 40.

The tip of the extension piece 33D abuts against the frame 40. Specifically, the tip of the extension piece 33D abuts against the bottom surface of the recessed portion 41a of the frame 40.

Note that, apart from the cover member 30D, the configuration of the LED lighting device 3D in this embodiment is the same as that of the LED lighting device 3A in the above-mentioned embodiment 1.

As described above, in the LED lighting device 3D according to this embodiment, as in the above-mentioned embodiment 1, the extension piece 33D of the cover member 30D is located in the recessed portion 41a provided in the main plate portion 41 of the frame 40.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33D.

In addition, in the LED lighting device 3D according to this embodiment, the extension piece 33D of the cover member 30D is inclined so as to widen outward from the tip to the rear end so that a spatial region S is formed between the extension piece 33D and the recessed portion 41a, and the tip of the extension piece 33D abuts against the frame 40.

With this configuration, the spatial region S formed by the inclined extension piece 33D can be used as a space to allow the screw shaft or head of a screw to escape for attaching a functional component arranged in the LED lighting device 3D to the frame 40, or as a space to store a conductive wire.

In this embodiment, a spatial region S is formed between the extension piece 33D and the recessed portion 41a, but this is not limited to this. For example, as in 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 spatial region is formed between the extension piece 33D and the recessed portion 41aα. Specifically, the main plate portion 41Dα is formed so that the bottom surface of the recessed portion 41aα is inclined at the same angle as the extension direction of the extension 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 approximately the same as the inclination angle of the bottom surface of the recessed portion 41aα, but this is not limited to this.

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

The LED lighting device 3E according to this embodiment differs from the LED lighting device 3A according to the above-mentioned embodiment 1 in the configuration of the extension piece 33E of the cover member 30E and the configuration of the main plate portion 41E of the frame 40E.

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

Note that, apart from the cover member 30E and the frame 40E, the configuration of the LED lighting device 3E in this embodiment is the same as that of the LED lighting device 3A in the above-mentioned embodiment 1.

As described above, in the LED lighting device 3E according to this embodiment, as in the first embodiment, the extension piece 33E of the cover member 30E is located in the recessed portion 41a provided in the first main plate portion 41E of the frame 40E.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33E.

In addition, in the LED lighting device 3E according to this embodiment, the tip of the extension piece 33E of the cover member 30E is fitted into a hole 41d provided in the main plate portion 41E of the frame 40E.

With this configuration, the extension piece 33E hooks into the hole 41d, making it difficult for the cover member 30E to come off the frame 40E.

(Embodiment 5)
Next, a fifth embodiment 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 the fifth embodiment.

The LED lighting device 3F according to this embodiment differs from the LED lighting device 3A according to the above-mentioned embodiment 1 in the structure of the connection portion between the extension piece 33 of the cover member 30A and the recessed portion 41a of the frame 40. Specifically, in the above-mentioned embodiment 1, the extension piece 33 and the recessed portion 41a are in contact, but in this embodiment, the extension piece 33 and the recessed portion 41a are not in contact, and a gap exists between the extension piece 33 and the recessed portion 41a.

Specifically, in the LED lighting device 3F in this embodiment, a screw 60 is screwed into a through hole provided in the recessed portion 41a. The screw 60 functions as a functional component mounting member for mounting a functional component such as the power supply device 4 or a mounting bracket such as a hook bracket to the frame 40. The functional component such as the power supply device 4 or the mounting bracket is disposed on the opposite side of the frame 40 from the substrate 10 side (the cover body portion 31A side of the cover member 30A) and is attached to the frame 40. In other words, the functional component is disposed inside the frame 40.

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

As described above, in the LED lighting device 3F according to this embodiment, as in the above-mentioned embodiment 1, the extension piece 33 of the cover member 30 is located in the recessed portion 41a provided in the first main plate portion 41 of the frame 40.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

In addition, in the LED lighting device 3F according to this embodiment, a screw 60 is provided in the recess 41a of the frame 40 as a functional component mounting member for mounting a functional component such as the power supply device 4 to the frame 40, and the screw 60 is covered by the extension piece 33.

This configuration allows functional component mounting members such as screws 60 to be stored in the space between the extension piece 33 and the recessed portion 41a. In addition, by covering the functional component mounting members such as screws 60 with the extension piece 33, it is possible to prevent the light of the LED 20 from being blocked or reflected by the functional component mounting members. Note that the functional component mounting members for mounting the functional components to the frame 40 are not limited to screws 60, and may be parts other than screws 60, such as crimped parts.

In the LED lighting device 3F shown in FIG. 19, the screw 60 is screwed into the through hole of the recessed portion 41a from the inside to the outside of the frame 40, but this is not limited to the above. For example, as in 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 is present on the outside of the recessed portion 41a (the cover body portion 31A side).

In the LED lighting device 3F shown in FIG. 19, the extension piece 33 contacts the screw 60, but this is not limited to this. For example, as in the LED lighting device 3Fα shown in FIG. 20, a cover member 30E having an extension piece 33E with a bent portion 33Ea may be used to prevent contact between the extension piece 33E and the screw 60. Note that in FIG. 20, the cover member 30E shown in FIG. 18 is used, but this is not limited to this. In this case, the tip of the bent extension piece 33E is abutted against the bottom surface of the recessed portion 41a, but this is not limited to this.

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

(Embodiment 6)
Next, a sixth embodiment will be described with reference to Fig. 22. Fig. 22 is a cross-sectional view of an LED lighting device 3G used in an LED lighting fixture according to the sixth embodiment.

In the LED lighting device 3G according to this embodiment, like the LED lighting device 3F according to the above-mentioned embodiment 5, the extension piece 33 and the recessed portion 41a are not in contact with each other, and a gap exists between the extension piece 33 and the recessed portion 41a.

In this embodiment, the 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. In other words, the extension piece 33 covers the conductive wire 70. As an example, the conductive wire 70 is an electric wire for supplying DC power from the power supply device 4 to the LED 20.

As described above, in the LED lighting device 3G according to this embodiment, as in the above-mentioned embodiments 1 and 5, the extension piece 33 of the cover member 30A is located in the recessed portion 41a provided in the first main plate portion 41 of the frame 40.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

In addition, in the LED lighting device 3G according to this embodiment, a conductive wire 70 is disposed in the recess 41a, and the extension piece 33 covers the conductive wire 70.

This configuration allows the conductive wire 70 to be stored in the space between the extension piece 33 and the recessed portion 41a. In other words, the space between the extension piece 33 and the recessed portion 41a can be used as wiring space. In addition, by covering the conductive wire 70 with the extension piece 33, it is possible to prevent the conductive wire 70 from blocking or reflecting the light of the LED 20.

In addition, as in the LED lighting device 3Gα shown in FIG. 23, the cover member 30E shown in FIG. 18 may be used. In this way, the tip of the bent extension piece 33E covers the side of the conductive wire 70, so that the conductive wire 70 can be prevented from moving in the X-axis direction. In other words, the position of the conductive wire 70 can be regulated by the extension piece 33E.

(Seventh embodiment)
Next, a seventh embodiment 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 the seventh embodiment.

The LED lighting device 3H according to this embodiment is the same as the LED lighting device 3A according to the first embodiment, except that the functional component 80 exerts its function via the extension piece 33 of the cover member 30A and the recessed portion 41a of the frame 40.

The functional component 80 may be, for example, various sensors such as a human presence sensor or a brightness sensor, a receiver (light receiving unit) such as a wireless receiver for receiving a wireless dimming signal or an infrared receiver for receiving an infrared remote control signal, or a display monitor.

The functional components 80 are arranged on the side of the frame 40 opposite the substrate 10 side (the cover body portion 31A side of the cover member 30A). In other words, the functional components 80 are arranged inside the frame 40. Specifically, the functional components 80 are arranged in a position facing the recessed portion 41a of the frame 40.

An extension piece 33 is disposed in the recessed portion 41a of the frame 40. In this embodiment, the extension piece 33 is provided with a through hole 33a. The recessed portion 41a is also provided with a through hole 41a1. The through hole 33a and the through hole 41a1 are provided so as to be in communication with each other. Furthermore, the through hole 33a and the through hole 41a1 allow signals received by the functional component 80 or signals output from the functional component 80 to pass through.

As described above, in the LED lighting device 3H according to this embodiment, as in the above-mentioned embodiment 1, the extension piece 33 of the cover member 30A is located in the recessed portion 41a provided in the first main plate portion 41 of the frame 40.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

In addition, in the LED lighting device 3H according to this embodiment, the functional component 80 arranged on the side of the frame 40 opposite the substrate 10 performs its function via the recessed portion 41a. Specifically, the functional component 80 performs its function via the recessed portion 41a and the extension piece 33.

As a result, even if the extension piece 33 is placed in the recessed portion 41a, the function of the functional component 80 can be exerted via the recessed portion 41a and the extension piece 33.

In the LED lighting device 3H shown in FIG. 24, the functional part 80 is configured to perform its function via both the recessed portion 41a and the extension piece 33, but this is not limited to the above. For example, as in the LED lighting device 3Hα shown in FIG. 25, the extension piece 33 may not extend to the through hole 41a1 of the recessed portion 41a, and the functional part 80 may be configured to perform its function only via the recessed portion 41a and the extension piece 33, that is, the recessed portion 41a.

In addition, the extension piece 33 is made of a translucent resin material, and signals such as radio waves or infrared rays can pass through the extension piece 33. Therefore, as in the LED lighting device 3Hβ shown in FIG. 26, the extension piece 33 may not have a through hole, and may extend beyond the through hole 41a1 of the recessed portion 41a. Although not shown, the main plate portion 41 of the frame 40 is also similarly made of a resin material, so that signals such as radio waves or infrared rays can pass through the main plate portion 41 without a through hole being provided in the main plate portion 41.

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

The LED lighting device 3I according to this embodiment is configured in such a way that the conductive wire 90 is disposed near the step portion of the recessed portion 41a of the frame 40 in the LED lighting device 3A according to the above-mentioned embodiment 1.

The conductive wire 90 is a thick electric wire, for example a VVF cable pulled out from a power terminal block attached to the inside of the frame 40. The conductive wire 90 pulled out from the power terminal block is connected to the power supply unit 4. Since such conductive wire 90 is relatively hard, there is a risk that the conductive wire 90 may hit the frame 40 and deform the frame 40 when the installer installing the LED lighting fixture pulls the conductive wire 90 around.

Therefore, since the step (rising portion) of the main plate portion 41 where the recessed portion 41a is provided has a structure with high mechanical strength, the conductive wire 90 is placed near the step of this recessed portion 41a. This makes it possible to prevent the frame 40 from deforming even if the conductive wire 90 hits the step of the main plate portion 41.

As described above, in the LED lighting device 3I according to this embodiment, as in the above-mentioned embodiment 1, the extension piece 33 of the cover member 30A is located in the recessed portion 41a provided in the first main plate portion 41 of the frame 40.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

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

The LED lighting device 3J according to this embodiment differs from the LED lighting device 3 according to the above-mentioned embodiment 1 in the configuration of the cover member 30J.

Specifically, in the LED lighting device 3J according to this embodiment, the cover member 30J has a portion different from the portion located in the recess 41a of the extension piece 33J, and the surface reflectance of the portion located in the recess 41a of the extension piece 33J is higher than the surface reflectance of the portion different from the portion located in the recess 41a of the extension piece 33J.

The cover member 30J in this embodiment has a cover body 31, an attachment portion 32J, and an extension piece 33J, similar to the cover member 30 in the above-mentioned embodiment 1, but the attachment portion 32J and the extension piece 33J in this embodiment are made of a different material from the attachment portion 32 and the extension piece 33 in the above-mentioned embodiment 1. Specifically, the attachment portion 32J and the extension piece 33J are made of a material having a higher reflectance than the cover body 31. As an example, the attachment portion 32J and the extension piece 33J are non-translucent and made of a white resin material. Note that the attachment portion 32J and the extension piece 33J may be translucent as long as they are made of a material having a higher surface reflectance than the cover body 31.

The cover body 31 is made of the same material in the cover member 30J of this embodiment as in the cover member 30 of the first embodiment. In addition, the cover member 30J of this embodiment as in the cover member 30 of the first embodiment has the same overall shape.

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

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

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33J.

In addition, in the LED lighting device 3J according to this embodiment, the surface reflectance of the portion of the extension piece 33J of the cover member 30J located at the recess 41a is higher than the surface reflectance of a portion of the extension piece 33J other than the portion located at the recess 41a. Specifically, the surface reflectance of the extension piece 33J located at the recess 41a is higher than the surface reflectance of the cover body 31 (one example of a portion of the extension piece 33J other than the portion located at the recess 41a).

With this configuration, the light emitted from the LED 20 and reflected by the inner surface of the cover body 31, etc., to reach the extension piece 33J can be reflected by the extension piece 33J. This makes it possible to prevent the light from the LED 20 from entering the inside of the extension piece 33J and being guided through the extension piece 33J and the mounting portion 32J. In addition, by reflecting the light from the LED 20 by the extension piece 33J, the light extraction efficiency can be improved.

In the LED lighting device 3J shown in Fig. 28, the cover body 31, the mounting portion 32J, and the extension piece 33J are made of different materials, but this is not limited to the above. For example, in the cover member 30Jα in the LED lighting device 3Jα shown in Fig. 29, a part of the cover body 31α and another part of the cover body 31α may be made of different materials, and the other part of the cover body 31α, the cover body 31α, the mounting portion 32J, and the extension piece 33J may be made of the same material. In Fig. 29, the ceiling side part (the lower part in the figure) of the protruding portion 31a of the cover body 31α is made of the same material for the mounting portion 32J and the extension piece 33J. As an example, the ceiling side portion of the protruding portion 31a of the cover body 31α, the mounting portion 32J, and the extension piece 33J can be made of a white resin material, and the floor side portion of the protruding portion 31a of the cover body 31α (the upper portion in the figure) can be made of a resin material that is translucent and diffusive.

Alternatively, as in the LED lighting device 3Jβ shown in FIG. 30, only the extension piece 33Jβ of the cover member 30Jβ may be made of a different material. As an example, the extension piece 33Jβ may be made of a white resin material, and the cover body 31 and the mounting portion 32 may be made of a resin material that is translucent and diffusive.

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

The LED lighting device 3K according to this embodiment differs from the LED lighting device 3A according to the above-mentioned embodiment 1 in the configuration of the cover member 30K and the frame 40K.

Specifically, in the LED lighting device 3A according to the above-mentioned embodiment 1, the pair of mounting portions 32 of the cover member 30 have the same length in the Z-axis direction, and the pair of side plate portions 42 of the frame 40 have the same length in the Z-axis direction, but in the LED lighting device 3K according to this embodiment, the length in the Z-axis direction of one of the pair of mounting portions 32K of the cover member 30K is shorter than the length in the Z-axis direction of the other of the pair of mounting portions 32K, and the length in the Z-axis direction of one of the pair of side plate portions 42K of the frame 40K is shorter than the length in the Z-axis direction of the other of the pair of side plate portions 42K.

More specifically, as shown in FIG. 31, the pair of mounting portions 32K of the cover member 30K has a first mounting portion 32K1 and a second mounting portion 32K2 facing each other, and the length in the Z-axis direction (leg length) of the first mounting portion 32K1 is longer than the length in the Z-axis direction (leg length) of the second mounting portion 32K2. Also, the pair of side plate portions 42K of the frame 40K has a first side plate portion 42K1 and a second side plate portion 42K2 facing each other, and the length in the Z-axis direction (leg length) of the first side plate portion 42K1 is longer than the length in the Z-axis direction (leg length) of the second side plate portion 42K2. Note that the length in the Z-axis direction of the first mounting portion 32K1 and the first side plate portion 42K1 is the same as the length in the Z-axis direction of the mounting portion 32 and the side plate portion 42 in the above-mentioned embodiment 1.

As described above, in the LED lighting device 3K according to this embodiment, as in the first embodiment, 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.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

In addition, in the LED lighting device 3K according to this embodiment, the length of one of the pair of side plate portions 42K in the frame 40K is shorter than the length of the other of the pair of side plate portions 42K.

This configuration ensures the strength of the frame 40K while providing space inside the frame 40K for arranging functional components such as the power supply unit 4 and wiring, etc.

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

The LED lighting device 3L according to this embodiment differs from the LED lighting device 3A according to the above-mentioned embodiment 1 in the configuration of the frame 40L.

Specifically, in the LED lighting device 3A according to the first embodiment, the recessed portion 41a of the frame 40 is provided at each of both ends in the short direction of the main board portion 41, but in the LED lighting device 3L according to the present embodiment, the recessed portion 41a of the frame 40L is provided at only one of both ends in the short direction of the main board portion 41L.

The pair of extension pieces 33 of the cover member 30A are both in contact with the surface of the main plate portion 41L of the frame 40L, but since the recessed portion 41a of the frame 40L is provided on only one side, one of the pair of extension pieces 33 is located in the recessed portion 41a, but the other of the pair of extension pieces 33 is not located in the recessed portion 41a. Therefore, the pair of extension pieces 33 are formed at positions with different heights.

As described above, in the LED lighting device 3L according to this embodiment, as in the above-mentioned embodiment 1, the extension piece 33 of the cover member 30A is located in the recessed portion 41a provided in the first main plate portion 41L of the frame 40L.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

In the LED lighting device 3L in this embodiment, only one of the pair of extension pieces 33 of the cover member 30A is located in the recessed portion 41a of the frame 40L. Therefore, there is a risk that the light emitted from the LED 20 may reach the other of the pair of extension pieces 33. However, in the case of a lighting device that only extracts light from one side, such as the LED lighting device 1L shown in FIG. 33, even if the light from the LED 20 reaches the other of the pair of extension pieces 33 when the LED lighting device 3L in FIG. 32 is used, the effect can be ignored. In addition, the device body 2L used in the LED lighting device 1L in FIG. 33 has a reflector 2c and is structured to extract light from only one side in the X-axis direction.

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

The LED lighting device 3M according to this embodiment differs from the LED lighting device 3A according to the above-mentioned embodiment 1 in the configuration of the frame 40M.

Specifically, the frame 40M in this 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 plate portion 41M and a side plate portion 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 board 10 by pressing down on both ends of the board 10 in the short direction from above.

In this embodiment, the recess 40b1 of the frame 40M is provided in the second frame member 40b, and no recess is formed in the main plate portion 41M. The lower portion of the step in the second frame member 40b functions as the recess 40b1. The extension piece 33 of the cover member 30A is located in the recess 40b1 of the second frame member 40b.

As described above, in the LED lighting device 3M according to this embodiment, the extension piece 33 of the cover member 30A is located in the recessed portion 40b1 of the frame 40M, as in the first embodiment.

This configuration prevents the light emitted from the LED 20 from reaching the extension piece 33.

(Other Modifications)
Although the LED lighting fixture and LED lighting device according to the present invention have been described above based on the first to twelfth embodiments, the present invention is not limited to these first to twelfth embodiments.

For example, in the above-mentioned embodiment 1, the entire substrate 10 is in contact with the metal part of the main plate part 41 of the frame 40, but this is not limited thereto. Specifically, as shown in the LED lighting device 3N shown in FIG. 35, an opening 41e may be formed in the main plate part 41N of the frame 40N, and a part of the second surface 10b of the substrate 10 may be exposed from the opening 41e of the frame 40N. In this case, instead of contacting the second surface 10b of the substrate 10 with the outer surface of the main plate part 41N of the frame 40N, the first surface 10a of the substrate 10 may be in contact with the inner surface of the main plate part 41N of the frame 40N as in the LED lighting device 3Nα shown in FIG. 36. In other words, the substrate 10 may be disposed on the inside of the frame 40N instead of on the outside. In addition, when the substrate 10 is disposed on the inside of the frame 40N, a support member 100 that supports the substrate 10 may be disposed separately as in the LED lighting device 3Nβ shown in FIG. 37. As a frame 40N having a main plate portion 41N with openings 41e formed therein, one having a configuration as shown in FIG. 38 can be used. In the frame 40N shown in FIG. 38, three openings 41e are formed in the main plate portion 41N, but this is not limited thereto.

In the above-mentioned first embodiment, the substrate 10 is fixed to the frame 40 by the claws 43 provided on the main plate portion 41 of the frame 40, but this is not limited thereto. For example, as in the LED lighting device 3O shown in FIG. 39, the substrate 10 and the main plate portion 41 of the frame 40 may be fixed by adhesive 110. The adhesive 110 is inserted between the substrate 10 and the main plate portion 41.

In the above embodiment 1, an SMD type LED element in which an LED chip is mounted in a package is used as the LED 20, and the light emitting module consisting of the substrate 10 and the LED 20 is an SMD type LED module, but this is not limited to this. For example, the light emitting module consisting of the substrate 10 and the LED 20 may be a COB (chip on board) type LED module. In this case, the LED chip (bare chip) itself is used as the LED 20, and multiple LEDs 20 (LED chips) are arranged in a line on the substrate 10, and the multiple LEDs 20 are collectively or individually sealed with a sealing member (e.g., phosphor-containing resin).

In addition, in the above-mentioned embodiment 1 and the like, a cover member 30 having both diffusive and translucent properties is used, but this is not limited to this. For example, a translucent cover having only translucent properties out of the diffusive and translucent properties may be used instead of the cover member 30. In this case, a transparent cover with a high transmittance that allows the other side to be seen through may be used as the translucent cover.

In addition, the present invention also includes forms obtained by applying various modifications to the above-mentioned embodiments that a person skilled in the art may conceive, and forms realized by arbitrarily combining the components and functions of each embodiment within the scope of the spirit of the present invention.

1, 1L LED lighting equipment 2, 2L equipment 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 body portion 31a, 31aA Protruding portion 31b Recessed portion 32, 32B, 32J, 32K Mounting portion 33, 33D, 33E, 33J, 33Jβ Extension piece 40, 40B, 40C, 40Cα, 40Cβ, 40Cγ, 40Dα, 40E, 40K, 40L, 40M, 40N Frame 41, 41C, 41Cα, 41Cβ, 41Cγ, 41Dα, 41E, 41L, 41M, 41N Main plate portion 41a, 41aα, 40b1 Recessed portion 41b, 41bα, 41bβ, 41bγ Projection portion 41d Hole portion 42, 42B, 42K Side plate portion 70 Conductive wire 80 Functional component 90 Conductive wire

Claims (18)

A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
a conductive line disposed in the recess;
The cover member has an extension piece at least a part of which is located in the recessed portion ,
The extension piece covers the conductive wire.
LED lighting equipment. The extension piece abuts against the recessed portion.
2. The LED lighting device according to claim 1. The extension piece is in contact with the recessed portion while pressing the recessed portion.
3. The LED lighting device according to claim 2. A portion of the extension piece located in the recessed portion is located at a position retreated from a light emitting surface of the LED.
The LED lighting device according to any one of claims 1 to 3 . the main plate portion has protrusions protruding toward the light emission side of the LED on both sides of a portion where the substrate is attached,
A portion of the extension piece located in the recessed portion is located at a lower position than the protruding portion.
The LED lighting device according to any one of claims 1 to 4 . The tip of the extension piece is fitted into a hole provided in the main plate portion.
The LED lighting device according to any one of claims 1 to 5 . The cover member has a portion different from a portion of the extension piece that is located in the recessed portion,
The reflectance of the surface of the portion of the extension 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 6 . The portion of the extension piece located in the recessed portion and the different portion are formed by two-color molding.
8. The LED lighting device according to claim 7 . A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
The cover member has an extension piece at least a part of which is located in the recessed portion,
A cover member attachment member for attaching the cover member to the frame is provided in the recessed portion.
LED lighting equipment. A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
The cover member has an extension piece at least a part of which is located in the recessed portion,
a functional component disposed on an opposite side of the frame from the substrate;
a functional component mounting member for mounting the functional component to the frame is provided in the recess,
The functional component mounting member is covered with the extension piece.
LED lighting equipment. A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
The cover member has an extension piece at least a part of which is located in the recessed portion,
a functional component disposed on an opposite side of the frame from the substrate;
The functional component exerts a function via the recessed portion.
LED lighting equipment. A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
The cover member has an extension piece at least a part of which is located in the recessed portion,
The tip of the extension piece abuts against the frame,
The extension piece is inclined so as to expand outward from the tip end portion to the rear end portion so that a spatial region is formed between the extension piece and the recessed portion.
LED lighting equipment. A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
The cover member has an extension piece at least a part of which is located in the recessed portion,
The cover member has a cover main body portion and an attachment portion extending from the cover main body portion toward the frame and attached to the frame,
The cover body portion includes a protrusion that protrudes outward from the attachment portion,
The protruding portion does not have a recessed portion recessed on the side opposite to the frame side.
LED lighting equipment. The recessed portion is provided at each of both ends in a short direction of the main plate portion.
The LED lighting device according to any one of claims 1 to 13 . A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
The cover member has an extension piece at least a part of which is located in the recessed portion,
The recessed portion is provided at only one of both ends in a short side direction of the main plate portion.
LED lighting equipment. A substrate on which an LED is arranged;
a frame having a long main plate portion to which the substrate is attached;
a cover member attached to the frame so as to cover the LED;
The main plate portion has a recessed portion provided at a short-side end portion of the main plate portion along a long-side direction of the main plate portion,
The cover member has an extension piece at least a part of which is located in the recessed portion,
The frame has a pair of elongated side plate portions standing on the main plate portion from both ends of the main plate portion in a short side direction,
A length of one of the pair of side plate portions is shorter than a length of the other of the pair of side plate portions.
LED lighting equipment. An LED lighting device according to any one of claims 1 to 16 ;
and a fixture body for holding the LED lighting device.
LED lighting fixture. The LED lighting device is detachably attached to the fixture body.
18. An LED lighting fixture as claimed in claim 17 .

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