JP7265116B2 - LED lighting equipment - Google Patents

Description

The present invention relates to LED lamps.

As an LED lighting device, for example, there is an LED lighting device disclosed in Patent Document 1 below. This LED lamp is sometimes called an "LED bar light" because it has a flat cylindrical lens and has a flat back surface. The LED bar light is attached to the wall surface or ceiling surface of the luggage compartment, for example, as a lighting device in the luggage compartment of a truck having a box-shaped cargo bed. The LED bar light is attached and fixed to the wall surface of the luggage compartment, for example, with a double-sided tape attached to the rear surface of the LED bar light.

JP 2018-18820 A

However, since the adhesive layer of double-sided tape may deteriorate with age, the adhesive strength tends to weaken over time. If the LED bar light is not properly adhered due to, for example, air remaining between the wall surface and the adhesive layer, the adhesive force may be reduced. Moreover, especially in the luggage compartment of a truck, there is a possibility that the adhesive force of the double-sided tape will be further weakened due to vibrations applied during travel and temperature fluctuations due to changes in weather. Therefore, there is a problem that the LED bar light attached with the double-sided tape may fall from the wall surface or the like.

Some of these problems can be solved, for example, by using a strong double-faced tape with increased adhesion to withstand vibrations, temperature fluctuations, and the like. However, once the LED bar light is adhered to a wall surface or the like, the strong double-sided tape is difficult to peel off afterwards. Therefore, for example, when attempting to remove the LED bar light from the wall surface during maintenance, the LED bar light may be damaged or the adhesive layer of the double-sided tape may remain on the wall surface, resulting in reduced workability. problems.

In addition, since LEDs emit light with sharp directivity in a specific direction, when the LED bar light is attached to a wall or ceiling surface, even if the area directly beside or directly below becomes bright, other areas are not so bright. Sometimes. Therefore, in order to brightly illuminate a wide area, it is possible to take measures such as increasing the number of LED bar lights attached to the wall or replacing them with LED bar lights that have high-brightness light-emitting diodes. There is a problem that it directly leads to an increase in the mounting cost.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-described problems, and to provide an LED lamp that can improve work efficiency during installation or maintenance. It is another object of the present invention to provide an LED lighting fixture capable of reducing mounting costs.

In order to achieve the above object, the LED lighting fixture described in claim 1 of the scope of claims includes a rectangular LED substrate on which a plurality of light emitting diodes are mounted, and a light transmitting portion having a light transmitting portion for the plurality of light emitting diodes. a lens portion having a rectangular lens side engaging portion provided in the longitudinal direction on both sides in the short direction for mounting the LED substrate with the light emitting side facing the light transmitting portion; a base portion that has a base portion side engaging portion that has a large coefficient of thermal expansion or a linear expansion coefficient and is located inside the lens side engaging portion in the short direction, and that can be attached to the attached portion; The lens portion to which the LED board is attached is detachably engaged with the base portion attached to the attached portion, and the lens side engaging portion is the base portion side engaging portion. The technical feature is that it engages from the outside in the lateral direction .

According to the first aspect of the present invention, there is provided an LED lamp, an LED substrate, a lens portion, and a base portion. The lens portion to which the LED substrate is attached is detachably engaged with the base portion attached to the attached portion. This makes it possible to remove or attach the lens portion to which the LED board is attached while the base portion is attached to the attached portion. Therefore, for example, even if the base portion is adhered to the attached portion with a strong double-sided tape, the lens portion can be removed without peeling off the base portion from the attached portion. Further, by once attaching the removed lens portion or a new lens portion to the base portion, the lens portion can be attached without adhering the base portion to the attached portion again.
In addition, the lens portion has lens-side engaging portions provided in the longitudinal direction on both sides in the lateral direction. Further, the base portion has a base portion side engaging portion which has a larger thermal expansion coefficient or a linear expansion coefficient than the lens side engaging portion and which is located inside the lens side engaging portion in the short direction. The lens-side engagement engages with the base-side engagement portion from the outside in the lateral direction. Thus, by using a resin material having a larger coefficient of thermal expansion or linear expansion than that of the lens portion for the base portion, even if the base portion side engaging portion and the lens side engaging portion thermally expand, the base portion side engaging portion The amount of opening of the lens-side engagement to the outside in the width direction is smaller than the amount of opening to the outside in the width direction. As a result, it becomes difficult to release the engagement between the two, so that even if the cargo room becomes hot and the base and the lens expand thermally, it is possible to make it difficult for the lens to come off from the base.

Further, the LED lighting device described in claim 2 of the scope of claims is the LED lighting device according to claim 1, wherein the base portion constitutes a corner portion protruding in the direction opposite to the side on which the lens portion is attached. It is a technical feature to have one side and the other side to do.

In the invention of the LED lighting device according to claim 2, the base portion has one surface and the other surface forming a corner portion protruding in the direction opposite to the side on which the lens portion is attached. At the corner where the wall surface and the ceiling surface that spreads horizontally are perpendicular to each other, this corner is aligned and the base is attached. For example, one surface of the base portion forming the corner portion is attached to the wall surface, and the other surface of the base portion forming the corner portion is attached to the ceiling surface. As a result, compared to the case where an LED lighting fixture with a flat back surface, such as the LED bar light described in the "Background Art" section, is attached to the wall surface or the ceiling surface, the corner where the wall surface and the ceiling surface intersect , downward at an angle of 45 degrees to the wall surface with respect to the ceiling surface). Therefore, compared with the case where the above-mentioned LED bar light is attached to a wall surface or a ceiling surface, it is possible to brighten a wide range, and it is possible to reduce the number of LED lamps used.

Further, the LED lighting device described in claim 3 of the scope of claims is the LED lighting device according to claim 1 or 2 , further comprising a holder portion for holding the LED substrate, and the LED light device is mounted through the holder portion. When the substrate is attached to the lens portion, the lens portion has a second lens-side engaging portion, and the holder portion is a holder that can be engaged with the second lens-side engaging portion. A technical feature is that it has a side engaging portion.

In the invention of the LED lamp according to claim 3 , the lens portion has the second lens-side engaging portion. Moreover, the holder portion that holds the LED substrate has a holder-side engaging portion that can be engaged with the second lens-side engaging portion. As a result, the heat generated by the light emitting diode can be dissipated to the base portion side or the space defined between the base portion and the lens portion via the holder portion. Further, since the holder portion is attached to the lens portion by engaging the holder side engaging portion with the second lens side engaging portion, for example, the holder portion is attached to the lens portion by screwing. Compared to the case, it is possible to reduce the number of parts because screws are not required.

Further, the LED lighting device described in claim 4 of the scope of claims is the LED lighting device according to any one of claims 1 to 3 , wherein the elongated shape longer than the length in the longitudinal direction of the lens part is the If there may be a gap on one or both sides of the lens portion that the base portion has and engages the base portion, or if the base portion has an elongated shape that is longer than twice the longitudinal length of the lens portion. and a blank cover having a length corresponding to the width of the gap is attached to engage with the base portion when a gap may exist between the two lens portions engaged with the base portion. are technical features.

In the LED lighting device according to claim 4 , the base portion has an elongated shape longer than the length of the lens portion in the longitudinal direction, and a gap can exist on one side or both sides of the lens portion that engages with the base portion. In the case or where the base portion has an elongate shape longer than twice the longitudinal length of the lens portion and there may be a gap between the two lens portions engaging the base portion, A blank cover having a length corresponding to the width of the gap is attached in engagement with the base portion. As a result, even if there is a gap on one side or both sides of the lens portion, or if there is a gap between two lens portions, the blank cover can be attached to the gap. Therefore, since such gaps are covered by the blank cover, it is possible to make it difficult to impair the aesthetic appearance in terms of design compared to the case where these gaps are visible.

In the LED lighting device of the present invention, it is possible to remove or attach the lens portion to which the LED substrate is attached while the base portion is attached to the attachment portion. Therefore, for example, even if the base portion is adhered to the attached portion with a strong double-sided tape, the lens portion can be removed without peeling off the base portion from the attached portion. Further, by once attaching the removed lens portion or a new lens portion to the base portion, the lens portion can be attached without adhering the base portion to the attached portion again. Therefore, it is possible to improve work efficiency during installation or maintenance.

In addition, in the LED lighting fixture of the present invention, the wall surface and the ceiling surface are perpendicular to each other, compared to the case where the LED lighting fixture having a flat back surface such as the LED bar light described in the "Background Art" section is attached to the wall surface or the ceiling surface. It becomes possible to irradiate the light emitted from the LED obliquely downward from the corner. Therefore, compared with the case where the above-mentioned LED bar light is attached to a wall surface or a ceiling surface, it is possible to brighten a wide range, and it is possible to reduce the number of LED lamps used. Therefore, the mounting cost can be reduced.

1 is a perspective view showing a configuration example of an LED lighting device according to an embodiment of the present invention; FIG. It is an explanatory view showing an example of use of the LED lighting fixture of this embodiment. It is a figure showing the example of composition of the LED lamp of this embodiment, and Drawing 3 (A) is a front view. FIG. 3(B) is a side view seen from the direction of arrow 3B shown in FIG. 3(A). FIG. 4A is a diagram showing a configuration example of the LED lighting fixture of the present embodiment, and FIG. 4A is a cross-sectional view of a cross section cut along the dashed line 4A shown in FIG. 3 as viewed in the direction of the arrow. 4(B) is a cross-sectional view of a cross-section cut along the dashed line 4B shown in FIG. 3, viewed in the direction of the arrow. Further, FIG. 4(C) is a cross-sectional view of a cross-section taken along the dashed line 4C shown in FIG. 3 and viewed in the direction of the arrow. FIG. 2 is an exploded perspective view showing an exploded state of the LED lighting fixture of the present embodiment; FIG. 4 is an explanatory diagram showing an example of a work process for mounting the LED lamp of the embodiment; FIG. 10 is an explanatory diagram showing another usage example of the LED lighting device of the present embodiment; FIG. 8A is a front view showing another configuration example of the LED lamp of the present embodiment; FIG. FIG. 8(B) is a side view seen from the direction of arrow 8B shown in FIG. 8(A). FIG. 9A is a diagram showing another configuration example of the LED lighting fixture of the present embodiment, and FIG. 9A is a cross-sectional view taken along the dashed line 9A shown in FIG. 8 and viewed in the direction of the arrow. 9(B) is a cross-sectional view of a cross-section taken along the dashed line 9B shown in FIG. 8 and viewed in the direction of the arrow. Further, FIG. 9(C) is a cross-sectional view of a cross-section taken along the dashed line 9C shown in FIG. 8 and viewed in the direction of the arrow. It is the perspective view which looked at the LED lighting implement of this embodiment from the diagonal upper front right. In this figure, a portion of the base is represented by a solid line and the rest is represented by a dashed line. FIG. 11(A) is a front view of the LED lamp. FIG. 11B is a rear view of the LED lamp. FIG. 11(C) is a plan view of the LED lamp. FIG. 11(D) is a right side view of the LED lamp. FIG. 11(E) is a left side view of the LED lamp. FIG. 11(F) is an enlarged view of FIG. 11(D). FIG. 11(G) is an enlarged view of FIG. 11(E). In these figures, a portion of the base is represented by solid lines and the rest is represented by dashed lines.

Hereinafter, embodiments of the LED lamp of the present invention will be described with reference to the drawings. An overview of the configuration of an LED lamp 10 according to this embodiment will be described with reference to FIGS. 1 to 5. FIG. 1, 3 to 5, 8, and 9, the X-axis direction is referred to as the "transverse direction", the Y-axis direction is referred to as the "longitudinal direction", and the Z The axial direction is sometimes referred to as the "height direction".

As shown in FIGS. 1 to 5, the LED lamp 10 of the present embodiment includes, for example, an elongated base 11, a plurality of light units 20 attached to the base 11, and provided between the light units 20. It is composed of a blank cover 41 and end covers 51 and 52 provided at both ends of the base 11 .

In the present embodiment, as shown in FIG. 1, an LED lighting device 10 including two sets of light units 20 will be described as an example. Alternatively, there is a configuration in which end covers 51 and 52 are provided at both ends of one set of light units 20, and the like.

For example, when the LED lighting device 10 is installed in the luggage compartment 9 of the truck 2 shown in FIG. The truck 2 is a freight vehicle with a box-shaped bed (made of aluminum, for example). The cargo bed is composed of, for example, two side walls 3 provided in the width direction of the vehicle, a front wall 4 provided in front of the vehicle, a rear door provided in the rear of the vehicle, a ceiling 5 and a floor surface 6. 9 are partitioned.

The truck 2 on which the LED lighting device 10 of the present embodiment is mounted is a wing-type 4-ton vehicle in which cargo can be loaded and unloaded from the side of the luggage compartment 9 by partially popping up the side walls 3 and the ceiling 5 . It should be noted that FIG. 2 omits a rear door, a taillight, etc. of the truck 2 for convenience of illustration.

The LED lighting device 10 of the present embodiment is attached to the corner 7 of the luggage compartment 9 in such a truck 2, for example. The corner 7 is, for example, a corner where the side wall surface 3a of the side wall 3 and the ceiling surface 5a of the ceiling 5 are orthogonal or substantially orthogonal (hereinafter, orthogonal or approximately orthogonal is expressed as "perpendicular"). In the example shown in FIG. 2, the LED lamps 10 are mounted on the corners 7 on both sides of the luggage compartment 9 in the vehicle width direction.

In addition, in FIG. 2, the portion of the LED lamp 10 is colored gray. A white rectangle positioned between adjacent light units 20 is a blank cover 41, which will be described later. Although not shown, the LED lighting device 10 may be attached to a corner 7 where the front wall surface 4a of the front wall 4 and the ceiling surface 5a are perpendicular to each other. In this case, for example, four sets of light units 20 are provided.

As shown in FIGS. 3 to 5, the base 11 has side wall portions 12 and 13 which are formed in a long plate shape and which are perpendicular to each other in an L-angle shape in the lateral direction (X-axis direction) to form a corner portion 14. As shown in FIGS. , and engaging portions 17 and 18 which are formed in the shape of the letter "<" of hiragana at the opposite ends of the corner portion 14 from the side wall portions 12 and 13, respectively.

That is, the base 11 has side walls 12 and 13 forming corners 14 protruding in opposite directions to engaging portions 17 and 18 to which a globe 21 of a light unit 20 (to be described later) is attached. L-shaped claw portions 17a and 18a are provided at the tips of the engaging portions 17 and 18, respectively. These claw portions 17a and 18a are configured to be able to engage with engaging portions 27 and 28 of the glove 21 . In this embodiment, the engaging portions 17 and 18 are formed in a line-symmetrical shape with respect to a line passing through the center of the base 11 in the lateral direction (X-axis direction) and extending in the longitudinal direction (Y-axis direction) of the base 11 . ing.

Further, in the present embodiment, a bent portion 15 having a thinner thickness than these is provided between the side wall portion 12 and the engaging portion 17 . Between the side wall portion 13 and the engaging portion 18, a bent portion 16 having a thinner thickness than these is also provided. Accordingly, as will be described later, when the engaging portions 27 and 28 of the glove 21 and the engaging portions 43 and 44 of the blank cover 41 are pressed from the outside in the X-axis direction, the engaging portions 17 and 18 move inward. It is made easy to produce bending which falls down.

The base 11 configured in this way is made of ABS resin, for example, and the side walls 12 and 13, the corners 14, the bent portions 15 and 16, the engaging portions 17 and 18, and the claw portions 17a and 18a are integrally molded. It is These are connected in an elongated shape, and are molded by, for example, an extruder. Further, in this embodiment, the engaging portions 17 and 18 are set to have substantially the same plate thickness as the engaging portions 27 and 28 of the globe 21 to be described later. In this embodiment, the side walls 12 and 13 are attached and fixed to the luggage compartment 9 by sticking them to the corners 7 of the luggage compartment 9 with a strong double-sided tape. For example, the side surface 12a of the side wall portion 12 is attached to the ceiling surface 5a, and the side surface 13a of the side wall portion 13 is attached to the side wall surface 3a and the front wall surface 4a.

The light unit 20 is composed of a globe 21 and an LED module 30 attached inside the globe 21 . The light unit 20 is attached to the base 11 so as to cover a long rectangular opening 11a (see FIG. 5) formed by facing the ends of the engaging portions 17 and 18 of the base 11 . In this embodiment, the base 11 and the light unit 20 are engaged with each other by engaging portions 17 and 18 (on the side of the base 11) and engaging portions 27 and 28 (on the side of the light unit 20) provided respectively.

The glove 21 is composed of a front panel 22, a lens 23, L-angle portions 25 and 26, and engaging portions 27 and 28. It is formed in a long plate shape with a hexagonal bracket ([ ) shape that can be covered. In this embodiment, the globe 21 is made of, for example, acrylic resin (PMMA; polymethyl methacrylate resin) or polycarbonate (PC), and is colorless and transparent.

The front panel 22 is a flat portion that mainly constitutes the exterior design of the light unit 20 viewed from the front, and includes a lens 23 . The outer surface of the front panel 22 is a flat surface, and illumination light is emitted from the range of the lens 23 included in this flat surface.

The lens 23 is a light diffusing lens having a large number of irregularities formed on the inner surface of the front panel 22 . formed. In this embodiment, a light diffusion lens is exemplified as the lens 23, but as long as the light emitted from the LED chip 32 of the LED module 30 can pass through, the lens need not be an optical lens, and a simple transparent plate may be used. A translucent plate in the form of frosted glass (milky white) may be used.

L angle portions 25 and 26 are also formed on the inner surface of the front panel 22 . The L angle portions 25 and 26 enable a substrate holder 34 of the LED module 30 (to be described later) to be attached to the globe 21 . In this embodiment, on both sides in the short direction (X-axis direction) of the lens 23 formed in a belt shape on the front panel 22, the L angle portions 25 and 26 are formed inward so that the hook-shaped tips face each other. It is The L angle portions 25 and 26 are formed continuously (entirely) or discontinuously (partially) in the longitudinal direction (Y-axis direction) of the globe 21 .

The engaging portions 27 and 28 are formed on both sides of the front panel 22 in the lateral direction (X-axis direction). In this embodiment, the engaging portions 27 and 28 are formed in a shape that bends toward the inside of the front panel 22, for example, like a hexagonal bracket ([ ) at both ends. The engaging portions 27 and 28 are also formed continuously in the longitudinal direction (Y-axis direction) of the globe 21 as with the lens 23 .

At the tips of the engaging portions 27 and 28, claw portions 27a and 28a formed in a katakana "re" shape are provided. These claw portions 27 a and 28 a are configured to be engageable with the engaging portions 17 and 18 of the base 11 . In this embodiment, the engaging portions 27 and 28 are set to have substantially the same plate thickness as the engaging portions 17 and 18 of the base 11 described above. In this embodiment, the engaging portions 27 and 28 are symmetrical with respect to a line passing through the center of the globe 21 in the lateral direction (X-axis direction) and extending in the longitudinal direction (Y-axis direction) of the globe 21. formed.

The LED module 30 is composed of an LED substrate 31 and a substrate holder 34 . The LED substrate 31 is a strip-shaped printed wiring board. For example, a plurality of LED chips 32 arranged in a row are mounted on the LED substrate 31 (see FIG. 3). These LED chips 32 are supplied with drive power input from electrical wiring 33 via printed wiring (not shown). This allows the LED chip 32 to emit light.

The substrate holder 34 is a supporting member that supports the LED substrate 31 and is composed of a body portion 35 and an end cap 38 . The body portion 35 is made of, for example, aluminum, and is formed in a thick plate shape having a strip shape in the present embodiment. The length of the body portion 35 in the longitudinal direction (Y-axis direction) is set to be substantially the same as that of the LED substrate 31 . In addition, the length of the body portion 35 in the short direction (X-axis direction) is set smaller than the length of the opening 11a of the base 11 in the short direction.

Engagement grooves 35 a are formed on both sides of the body portion 35 in the short direction (X-axis direction). The engaging groove 35a is set to a position, groove width and groove depth that can be engaged with the L angle portions 25 and 26 of the globe 21 described above. On one surface side of the body portion 35, the width in the width direction is substantially the same as the width in the width direction (X-axis direction) of the LED substrate 31, and the width in the width direction increases as the other surface side (bottom side) is approached. A concave portion 35b is formed in which the .DELTA.

At the bottom of the recess 35b, grooves 35c are formed on both sides in the widthwise direction so as to secure a width in the widthwise direction (X-axis direction) capable of accommodating the LED substrate 31 therein. In addition, a reflecting portion 35d is formed in the concave portion 35b so that the lateral width of the concave portion 35b gradually narrows from the opening toward the bottom. Therefore, the light emitted from the LED chip 32 of the LED substrate 31 is configured to be reflected by the reflecting portion 35d and spread over a wide angle.

The groove 35c is positioned so that almost the entire back surface of the LED substrate 31 (the surface on which the LED chip 32 is not mounted) can be in close contact with the bottom surface of the recess 35b of the substrate holder . Therefore, the heat generated when the LED chip 32 emits light can be released to the body portion 35 of the substrate holder 34 . Note that a radiation fin (not shown) may be provided on the other surface side of the body portion 35 (the side on which the LED substrate 31 is not attached). As a result, the body portion 35 can be cooled by the air flowing through the internal space SP coming into contact with the heat radiating fins, so that the heat radiating effect is enhanced.

In the main body portion 35 configured in this way, the engaging groove 35a, the concave portion 35b, the groove portion 35c and the reflecting portion 35d are integrally formed by extrusion or cutting. Therefore, the body portion 35 is formed to have a similar cross-sectional shape from one end toward the other end, but in this embodiment, it is configured to close only the other end (see FIG. 4C). ).

That is, as shown in FIG. 4(B), a concave portion 35b is formed so as to open from one end portion of the body portion 35 to the front of the other end portion. As shown, at the other end of the main body 35, the recess 35b is closed without opening. Note that FIG. 4A shows one end of the body portion 35 with the end cap 38 attached, so the concave portion 35b opening at the end is not shown.

The end cap 38 is attached to one end of the main body 35 so that the LED board 31 accommodated in the main body 35 does not slip out. Therefore, the end cap 38 is formed, for example, in a shape other than the shape of the end portion of the main body portion 35, except for the engaging groove 35a, the concave portion 35b, the groove portion 35c, and the reflecting portion 35d. The end cap 38 is made of polycarbonate, for example. The end cap 38 is formed with a wiring hole 38a through which the electric wiring 33 connected to the LED substrate 31 can be pulled out to the outside. The end cap 38 is formed with two through holes (not shown) through which the screws 39 for fastening the end cap 38 to the main body 35 can be inserted.

The body portion 35 may be formed with the concave portion 35b, the groove portion 35c, and the reflecting portion 35d from one end to the other end in the same manner as the engaging groove 35a. That is, the same cross-sectional shape as the cross-sectional shape shown in FIG. 4B may be formed over the entire longitudinal direction (Y-axis direction) of the body portion 35 . In this case, another end cap having a configuration in which the wiring hole 38a is removed from the end cap 38 is provided and attached to the other end of the main body 35 by screwing it with a screw 39. As shown in FIG.

The LED module 30 configured in this manner is assembled, for example, as follows. That is, after the LED board 31 on which the LED chip 32 and the like have been mounted is inserted into the main body 35 from the recess 35b that opens at one end of the main body 35, it moves through the main body 35 in the longitudinal direction (Y-axis direction). Then, the LED board 31 is slid and the whole is accommodated in the main body part 35 . Next, after the electric wiring 33 of the LED board 31 pulled out from one end of the main body 35 is inserted into the wiring hole 38a of the end cap 38, the end cap 38 is screwed to one end of the main body 35 with a screw 39. , and the assembly of the LED module 30 is completed.

The assembled LED module 30 is then attached to the globe 21 . That is, the LED module 30 is aligned so that the L angle portions 25 and 26 of the globe 21 are engaged with the engaging grooves 35a of the body portion 35, and then slides from one end of the globe 21 toward the other end. and attached to the glove 21 . Thus, the light unit 20 is completed.

The blank cover 41 covers the opening 11a (see FIG. 5) of the base 11 to which the light unit 20 is not attached, thereby removing the electrical wiring 33, the transition wiring OW and the connector laid in the base 11 and the internal space SP. It is a blindfold member that prevents CN and the like from being seen from the outside. Therefore, the blank cover 41 has substantially the same structure as the globe 21 except for the lens 23 and the L angle portions 25 and 26 .

That is, the blank cover 41 is composed of a front panel 42 and engaging portions 43 and 44, and has a cross-sectional shape in the lateral direction (X-axis direction) that covers the opening 11a of the base 11 in the same manner as the globe 21. It is formed in the shape of a long plate having a hexagonal bracket ([ ) shape. In this embodiment, the blank cover 41 is made of ABS resin having a color such as white or gray, for example.

The front panel 42 is a flat portion that mainly constitutes the exterior design of the blank cover 41 viewed from the front, and is also constructed in substantially the same manner as the globe 21 . The engaging portions 43 and 44 are formed on both sides of the front panel 42 in the lateral direction (X-axis direction). This is also constructed in substantially the same manner as the engaging portions 27 and 28 of the glove 21 . That is, in this embodiment, the engaging portions 43 and 44 are formed in a shape that bends toward the inside of the front panel 42, for example, like the shape of both ends of a hexagonal bracket ([ ).

At the tips of the engaging portions 43 and 44, claw portions 43a and 44a are provided which are formed in the shape of the Japanese katakana character "". These claw portions 43 a and 44 a each have a sloped portion and are configured to be engageable with the engaging portions 17 and 18 of the base 11 . In this embodiment, the engaging portions 43 and 44 are symmetrical with respect to a line passing through the center of the blank cover 41 in the lateral direction (X-axis direction) and extending in the longitudinal direction (Y-axis direction) of the blank cover 41. formed.

The end covers 51 and 52 are attached to one end and the other end of the base 11 to prevent foreign matter from entering the internal space SP of the base 11 from these ends, and to prevent the LED lamp 10 from moving sideways. When viewed from above, the end opening of the base 11 is made invisible. Therefore, the end covers 51 and 52 are constructed in substantially the same manner, except that the end cover 51 has a through hole 57 formed therein. After the end covers 51 and 52 are fitted into the ends of the base 11, they are screwed and fixed to the base 11 with bolts or the like (not shown).

The end covers 51 and 52 are formed to have a side surface shape when the globe 21 is engaged with the base 11, that is, an onigiri shape in which two lower sides of a pentagon are flattened. The end covers 51 and 52 are made of ABS resin, for example, and are colored white, gray, or the like, like the blank cover 41 . A fitting portion 55 is formed on one end side of the end covers 51 and 52 . The fitting portion 55 is formed in a shape in which a plate member is rounded into a C shape so that it can be fitted inside the side walls 12 and 13 and the engaging portions 17 and 18 that constitute the base 11 .

Since the end covers 51 , 52 are configured to be able to be fitted into the openings at one end or the other end of the base 11 , they are assembled to the base 11 at the end of assembly of the LED lighting device 10 . That is, as shown in FIG. 5, in the process after the light unit 20 and the blank cover 41 are attached to the base 11, the end cover 51 closes one end of the base 11, and the end cover 52 closes the other end of the base 11. It is configured so that the ends can be closed. The electrical wiring 33 is inserted through the through hole 57 of the end cover 51 before the end cover 52 is attached to the other end of the base 11 .

By configuring the LED lighting device 10 in this manner, the LED lighting device 10 can be attached to a mounting portion such as the side wall surface 3a, the ceiling surface 5a, or the corner 7, as shown in FIGS. An example of a specific mounting work process is shown in FIG.

As shown in FIG. 6A, first, the base 11 is attached to the corner 7 with double-sided tape DT. In addition to the double-sided tape DT, the base 11 may be fixed to the side wall surface 3a (4a) or the ceiling surface 5a by self-tapping screws SS. In this embodiment, the width of the opening 11a in the transverse direction (X-axis direction) (double arrow in the figure) formed by facing the ends of the engaging portions 17 and 18 is large. Therefore, it is possible to secure a wide work area for screwing the self-tapping screw SS.

Next, the light unit 20 is attached to the base 11 . As shown in FIG. 6B, when the light unit 20 is attached to the base 11 so as to close the opening 11a (see FIG. 6A), the glove 21 is engaged with the engaging portions 17 and 18 of the base 11. Joint portions 27 and 28 abut. Then, the engaging portions 17 and 18 of the base 11 are pushed by the engaging portions 27 and 28 of the glove 21, and the bending portions 15 and 16 are bent, so that the engaging portions 27 and 28 move toward the side walls 12 and 13, respectively. collapse into. At this point, the claws 27a and 28a of the engaging portions 27 and 28 are positioned on the globe 21 side, and the claw portions 17a and 18a of the engaging portions 17 and 18 are positioned on the base 11 side.

In the present embodiment, the base 11 is made of ABS resin, and the globe 21 is made of acrylic resin. Therefore, if the plate thicknesses are substantially the same, the rigidity and bending stress of the acrylic resin globe 21 is larger than the base 11 made of ABS resin. Therefore, the engaging portions 17 and 18 made of ABS resin are more flexible than the engaging portions 27 and 28 made of acrylic resin. That is, since the engaging portions 17 and 18 are more easily deformed than the engaging portions 27 and 28, the engaging portions 17 and 18 of the base 11 are greatly tilted, while the engaging portions 27 and 28 of the glove 21 are deformed. It is difficult to deform (open) in the lateral direction (X-axis direction).

Therefore, by further pressing the light unit 20 toward the base 11, the positional relationship between the claws 27a, 28a of the engaging portions 27, 28 and the claws 17a, 18a of the engaging portions 17, 18 is reversed. . That is, the claw portions 27a and 28a of the engaging portions 27 and 28 are positioned on the base 11 side, and the claw portions 17a and 18a of the engaging portions 17 and 18 are positioned on the globe 21 side so that the engaging portion of the globe 21 is positioned. 27 and the engaging portion 17 of the base 11 are engaged with each other, and the engaging portion 18 of the base 11 and the engaging portion 28 of the glove 21 are engaged with each other. As a result, the light unit 20 is attached to the base 11 at the temporary position.

Also, although not shown, the blank cover 41 is also attached to the base 11 at a temporary position through the same attachment work process as the globe 21 of the light unit 20 .

Positioning in the longitudinal direction (Y-axis direction) is performed, for example, after the light unit 20 and the blank cover 41 are attached to the base 11 . That is, the light unit 20 and the blank cover 41 attached to the base 11 are slid in the longitudinal direction (Y-axis direction) so as not to create a gap between the light unit 20 and the blank cover 41 adjacent to each other. position adjustment. Finally, the end covers 51 and 52 are attached to the ends of the base 11, and the process of attaching the LED lamp 10 is completed.

When removing the light unit 20 and the blank cover 41 from the base 11, for example, insert a slotted screwdriver or the like into the gap between the engaging portions 17, 18 and the engaging portions 27, 28 to pull the glove 21 away from the base 11. The engagement between the two can be released by operating a flathead screwdriver or the like. As a result, the base 11 remains attached to the corner 7 or the like, so that only the light unit 20 and the blank cover 41 can be removed or replaced.

In addition, the self-tapping screws SS for screwing the base 11 to the side wall surface 3a and the ceiling surface 5a can be screwed so as to pass through the side wall portion 12 and the side wall portion 13 in the internal space SP (see FIG. 6). reference). As a result, for example, it is not necessary to provide screwing tabs that protrude outward in the longitudinal direction or transverse direction, so that the base 11 does not interfere with the corners 7 or the like (mounted portion) due to the screwing tabs. There are no restrictions on the mounting position, such as not being able to be mounted. Therefore, it becomes less necessary to select a mounting location, and mountability is improved.

As described above, in the LED lamp 10 according to the present embodiment, the light unit 20 including the globe 21 to which the LED module 30 (LED substrate 31) is attached has the side wall surface 3a, the front wall surface 4a, the ceiling surface 5a, and the floor surface. It is detachably engaged with the base 11 attached to 6 and corners 7 . This makes it possible to remove or attach the light unit 20 while the base 11 is attached to the side wall surface 3a or the like. Therefore, for example, even if the base 11 is attached to the side wall surface 3a or the like with a strong double-sided tape DT, the light unit 20 can be removed without peeling the base 11 from the side wall surface 3a or the like. Further, by temporarily attaching the removed light unit 20 or a new light unit 20 to the base 11, the light unit 20 can be attached without adhering the base 11 again to the side wall surface 3a or the like. Therefore, it is possible to improve work efficiency during installation or maintenance.

In addition, in the LED lamp 10 according to the present embodiment, the base 11 has side walls 12 and 13 forming corners 14 protruding in the direction opposite to the side on which the globe 21 is attached. Therefore, for example, by aligning the corner 14 with the corner 7 where the vertically rising side wall surface 3a and the horizontally expanding ceiling surface 5a are perpendicular to each other and attaching the base 11, the LED bar light described in the section [Background Art] can be obtained. Compared to the case where an LED lamp having a flat back surface is attached to a wall surface or a ceiling surface as in , it is obliquely downward from the corner 7 where the side wall surface 3a and the ceiling surface 5a intersect (for example, the side wall surface 3a side with respect to the ceiling surface 5a It is possible to irradiate the light emitted from the LED chip 32 downward at an angle of 45 degrees). Therefore, compared with the case where the above-described LED bar light is attached to the side wall surface 3a or the ceiling surface 5a, a wide range can be brightened, and the number of LED lamps 10 used can be reduced. Therefore, the mounting cost can be reduced.

In addition, in the LED lamp 10 according to the present embodiment, the angle of the corner portion 14 protruding in the direction opposite to the side on which the globe 21 is attached is set to approximately 90 degrees, but the present invention is not limited to this. You may change suitably according to the angle of the corner of a part. For example, the angle of the corner portion 14 formed by the side wall portion 12 and the side wall portion 13 may be appropriately changed to 60 degrees, 80 degrees, 100 degrees, 110 degrees, etc., according to the needs of the luggage compartment.

Furthermore, in the LED lighting device 10 according to the present embodiment, the globe 21 has engaging portions 27 and 28 provided in the longitudinal direction (Y-axis direction) on both sides in the lateral direction (X-axis direction). In addition, the base 11 has engaging portions 17 and 18 located inside the engaging portions 27 and 28 in the lateral direction (X-axis direction). The engaging portions 27 and 28 engage with the engaging portions 17 and 18 from outside in the lateral direction (X-axis direction). Accordingly, by using a resin material (for example, ABS resin) having a larger thermal expansion coefficient (or linear expansion coefficient) than the globe 21 (for example, acrylic resin or polycarbonate) for the base 11, the engaging portions 17 and 18 and the engaging portions 17 and 18 can be Even if the joint portions 27 and 28 thermally expand, the engagement portions 27 and 28 are larger in the widthwise direction (X-axis direction) than the extent to which the engagement portions 17 and 18 open outward in the widthwise direction (X-axis direction). ) is smaller. As a result, it is difficult to release the engagement between the two, so even if the interior of the luggage compartment 9 becomes hot and the base 11 and the globe 21 thermally expand, the globe 21 (light unit 20) is less likely to come off from the base 11. become.

Further, in the LED lighting device 10 according to this embodiment, the globe 21 has the L angle portions 25 and 26 . Further, the board holder 34 that holds the LED board 31 has an engagement groove 35a that can be engaged with the L angle portions 25 and 26. As shown in FIG. As a result, the heat generated by the LED chip 32 can be radiated to the base 11 side or the internal space SP defined between the base 11 and the globe 21 via the substrate holder 34 . Further, since the substrate holder 34 is attached to the globe 21 by engaging the engagement grooves 35a with the L angle portions 25 and 26, for example, when attaching the substrate holder 34 to the globe 21 by screwing, Compared to , it is possible to reduce the number of parts because screws are not required.

In addition, in the LED lighting device 10 according to the present embodiment, the base 11 has an elongated shape longer than the length in the longitudinal direction (Y-axis direction) of the light unit 20, and is engaged with the base 11 on one side or the side of the light unit 20. In the case where gaps may exist on both sides, blank covers 41 and 46 and end covers 51 and 52 having lengths corresponding to the width of the gaps are engaged with and attached to the base 11 . As a result, even if there are gaps on one side or both sides of the light unit 20, the blank covers 41 and 46 and the end covers 51 and 52 can be attached to those gaps. Therefore, since such gaps are covered by the blank covers 41, 46 and the end covers 51, 52, the appearance of the design is spoiled compared to the case where these gaps, the electrical wiring 33, the transition wiring OW, etc. are visible. It can be made difficult.

In addition, the base 11 has an elongated shape longer than twice the length in the longitudinal direction (Y-axis direction) of the light units 20, and a gap exists between the two light units 20 engaged with the base 11. In this case, blank covers 41 and 46 having a length corresponding to the width of the gap are attached to the base 11 in engagement therewith. Thereby, even if there is a gap between the two light units 20, the blank covers 41 and 46 are attached to the gap. Therefore, since such gaps are covered by the blank covers 41 and 46, compared with the case where these gaps, the electrical wiring 33, the crossover wiring OW, etc. are visible, it is possible to make it difficult to impair the aesthetic appearance in terms of design. Become.

In the above-described embodiment, the case where the LED lighting device 10 is mounted on the corner 7 of the luggage compartment 9 of the truck 2 has been described as an example. can be installed in various locations. The example shown in FIG. 7(A) represents the state of the mounting example described with reference to FIG. In addition, the example shown in FIG. 7(C) represents the state of the mounting example of FIG.

For example, the LED lamp 10' shown in FIG. 7B is an example using a blank cover 46 whose length that can cover the gap is set to be substantially the same as that of the light unit 20. In this example, the light unit 20 and the blank cover 46 arranged on the left side wall surface 3a are mounted in a staggered positional relationship.

Further, for example, the example shown in FIG. 7(D) is an example in which the light units 20 and the like constituting the LED lamps 10 and 10' are mounted on the corner formed between the side wall surface 3a and the floor surface 6. . Further, the example shown in FIG. 7(E) is an example in which the light units 20 and the like constituting the LED lamps 10 and 10' are mounted not on the corner 7 but on the side wall surface 3a. In this case, for example, only the side wall portion 12 or the side wall portion 13 of the base 11 is attached to the side wall surface 3a with double-sided tape or the like. Furthermore, for example, in the example shown in FIG.

In the above-described embodiment, the base portion constituting the LED lamp 10 is the base 11 (having a "V"-shaped cross-section in the lateral direction) that forms the corner portion 14 with the two side wall portions 12 and 13. , and the included angle is 90 degrees)), but the light unit 20 is not limited to this as long as the light unit 20 is a detachable base. For example, as shown in FIGS. 8 and 9, the cross-sectional shape in the lateral direction (X-axis direction) may be a base 61 having a shape obtained by rotating a katakana character "U" clockwise by 90 degrees. . 8 and 9, the substantially same components as those of the above-described LED lamp 10 are denoted by the same reference numerals, and descriptions thereof are omitted.

As shown in FIGS. 8 and 9, the base 61 includes two elongated side walls 62, 63 and a bottom wall 64, and the side walls 62, 63 extend in the opposite direction from the bottom wall 64. Engagement portions 67 and 68 are formed at the ends so as to form a hiragana "<" shape.

That is, the cross-sectional shape of the base 61 in the lateral direction is formed by rotating the letter "U" in katakana clockwise by 90 degrees, and the engaging portions 67 and 68 to which the globe 21 of the light unit 20 is attached are " It has two side walls 62 and 63 and a bottom wall 64a provided at both ends of the U-shape. L-shaped claw portions 67a and 68a are provided at the tips of the engaging portions 67 and 68, respectively. These claw portions 67a and 68a are configured to be engageable with the engaging portions 27 and 28 of the glove 21 . In this embodiment, the engaging portions 67 and 68 are formed in a line symmetrical shape with respect to a line passing through the center of the base 61 in the lateral direction (X-axis direction) and extending in the longitudinal direction (Y-axis direction) of the base 61 . ing.

In addition, in this embodiment, between the side wall portion 62 and the engaging portion 67, a bent portion 65 having a thickness smaller than these portions is provided. Between the side wall portion 63 and the engaging portion 68, a bent portion 66 having a thinner thickness than these is also provided. As a result, when the engaging portions 27 and 28 of the glove 21 and the engaging portions 43 and 44 of the blank cover 41 pressurize from the outside in the X-axis direction, the engaging portions 67 and 68 do not flex inwardly. making it easier to occur.

The base 61 configured in this way is made of ABS resin, for example, and the side walls 62 and 63, the bottom wall 64, the bent portions 65 and 66, the engaging portions 67 and 68, and the claw portions 67a and 68a are integrally formed. molded. These are connected in an elongated shape, and are molded by, for example, an extruder. Further, in the present embodiment, the engaging portions 67, 68 are set to have substantially the same plate thickness as the engaging portions 27, 28 of the globe 21, which will be described later. In this embodiment, the bottom surface 64a is attached to the side wall surface 3a and the ceiling surface 5a of the luggage compartment 9 and fixed to the luggage compartment 9 with a strong double-sided tape. For example, the side surface 62a of the side wall portion 62 is attached to the ceiling surface 5a, and the bottom surface 64a of the bottom wall portion 64 is attached to the side wall surface 3a and the front wall surface 4a.

The end covers 71 and 72 are attached to one end and the other end of the base 61 to prevent foreign matter from entering the internal space SP of the base 61 from these ends, and to prevent the LED lamp 60 from moving sideways. When viewed from above, the end opening of the base 61 is made invisible. Therefore, the end covers 71 and 72 are constructed in substantially the same manner, except that the end cover 71 has a through hole 57 formed therein. After the end covers 71 and 72 are fitted into the ends of the base 61, they are screwed and fixed to the base 61 with bolts or the like (not shown).

The end covers 71 and 72 are formed to have a side shape when the globe 21 is engaged with the base 61, that is, a rectangular shape elongated in the lateral direction (X-axis direction). The end covers 71 and 72 are made of ABS resin, for example, and are colored white, gray, or the like, like the blank cover 41 . A fitting portion 75 is formed on one end side of the end covers 71 and 72 . The fitting portion 75 is shaped like a vertically long C-shaped plate member so that it can be fitted inside the side wall portions 62 and 63, the bottom wall portion 64, and the engaging portions 67 and 68 that constitute the base 61. formed.

Since the end covers 71 and 72 are configured to be able to be fitted into the openings at one end or the other end of the base 61 , they are assembled to the base 61 at the end of assembly of the LED lighting fixture 10 . That is, in the process after the light unit 20 and the blank cover 41 are attached to the base 61, the end cover 71 closes one end of the base 61, and the end cover 72 closes the other end of the base 61. is configured to The electrical wiring 33 is inserted through the through hole 77 of the end cover 71 before the end cover 72 is attached to the other end of the base 61 .

By configuring the LED lighting device 60 in this manner, the LED lighting device 60 can be attached to a mounting portion such as the side wall surface 3a, the ceiling surface 5a, or the like. A specific example of the mounting work process is omitted because it is substantially the same as that of the LED lighting device 10 .

In the LED lighting fixture 60 configured in this way, the light unit 20 including the globe 21 to which the LED module 30 (LED substrate 31) is attached is attached to the side wall surface 3a, the front wall surface 4a, the ceiling surface 5a, and the floor surface 6. It is detachably engaged with the base 61 in the closed state. As a result, the light unit 20 can be removed or attached while the base 61 is attached to the side wall surface 3a or the like. Therefore, for example, even if the base 61 is attached to the side wall surface 3a or the like with a strong double-sided tape, the light unit 20 can be removed without peeling off the base 61 from the side wall surface 3a or the like. Further, by temporarily attaching the removed light unit 20 or a new light unit 20 to the base 61, the light unit 20 can be attached without adhering the base 61 again to the side wall surface 3a or the like. Therefore, it is possible to improve work efficiency during installation or maintenance.

In addition, in the LED lighting device 60 according to the present embodiment, the globe 21 has the engagement portions 27 and 28 provided in the longitudinal direction (Y-axis direction) on both sides in the lateral direction (X-axis direction). The base 61 also has engaging portions 67 and 68 located inside the engaging portions 27 and 28 in the lateral direction (X-axis direction). The engaging portions 27 and 28 engage with the engaging portions 67 and 68 from outside in the lateral direction (X-axis direction). Accordingly, by using a resin material (for example, ABS resin) having a larger thermal expansion coefficient (or linear expansion coefficient) than the globe 21 (for example, acrylic resin or polycarbonate) for the base 61, the engaging portions 67 and 68 and the engaging portions 67 and 68 can be Even if the joint portions 27 and 28 thermally expand, the engagement portions 27 and 28 are larger in the width direction (X-axis direction) than the engagement portions 67 and 68 open outward in the width direction (X-axis direction). ) is smaller. Therefore, since the engagement between the two is difficult to be released, even if the temperature inside the luggage compartment 9 rises and the base 61 and the globe 21 thermally expand, the globe 21 (light unit 20) can be made difficult to come off from the base 61. become.

Furthermore, in the LED lighting device 60 according to this embodiment, the globe 21 has the L-angle portions 25 and 26 . Further, the board holder 34 that holds the LED board 31 has an engagement groove 35a that can be engaged with the L angle portions 25 and 26. As shown in FIG. As a result, the heat generated by the LED chip 32 can be dissipated through the substrate holder 34 to the base 61 side or the internal space SP defined between the base 61 and the globe 21 . Further, since the substrate holder 34 is attached to the globe 21 by engaging the engagement grooves 35a with the L angle portions 25 and 26, for example, when attaching the substrate holder 34 to the globe 21 by screwing, Compared to , it is possible to reduce the number of parts because screws are not required.

In addition, in the LED lighting device 60 according to the present embodiment, the base 61 has an elongated shape longer than the length in the longitudinal direction (Y-axis direction) of the light unit 20 and engages with the base 61 on one side or the side of the light unit 20 . In the case where gaps may exist on both sides, the blank covers 41 and 46 and the end covers 71 and 72 having lengths corresponding to the width of the gaps are engaged with the base 61 and attached. As a result, even if there are gaps on one side or both sides of the light unit 20, the blank covers 41 and 46 and the end covers 71 and 72 are attached to those gaps. Therefore, since such gaps are covered by the blank covers 41, 46 and the end covers 71, 72, the appearance of the design is impaired compared to the case where these gaps, the electrical wiring 33, the transition wiring OW, etc. are visible. It can be made difficult.

In addition, the base 61 has an elongated shape longer than twice the length in the longitudinal direction (Y-axis direction) of the light units 20, and a gap exists between the two light units 20 engaged with the base 61. In this case, blank covers 41 and 46 having a length corresponding to the width of the gap are attached to the base 61 in engagement therewith. Thereby, even if there is a gap between the two light units 20, the blank covers 41 and 46 are attached to the gap. Therefore, since such gaps are covered by the blank covers 41 and 46, compared with the case where these gaps, the electrical wiring 33, the crossover wiring OW, etc. are visible, it is possible to make it difficult to impair the aesthetic appearance in terms of design. Become.

In the above-described embodiment, the truck 2 is a wing-type 4-ton truck. The lamps 10, 10', 60, etc. can be mounted. The configuration of the LED lamp 10 and the like (the number of the light unit 20 and the blank covers 41 and 46) is appropriately changed according to the size of each luggage compartment.

In the above-described embodiment, the double-sided tape DT is used to attach the base 11 to the side wall surface 3a, the ceiling surface 5a, or the like. or a liquid adhesive may be used for attachment. Alternatively, the base 11 may be fixed to the side wall surface 3a, the ceiling surface 5a, or the like only with the self-tapping screws SS without using the double-sided tape DT or the adhesive.

Furthermore, in the above-described embodiment, the configuration in which the end covers 51, 52, 71, and 72 are attached to the ends of the base 11 has been exemplified and explained. It may be configured such that air is forcibly (or naturally) circulated within the space SP. As a result, the substrate holder 34 existing in the internal space SP of the base 11 can be air-cooled, so that the heat radiation effect can be enhanced.

The shape of a part of the base 11 that constitutes the LED lighting device 10 is shown in the perspective view of FIG. 10 and the drawings of FIG. ) can be grasped as

In these figures, only part of the base 11 is represented by solid lines, and the other parts are represented by dashed lines. That is, the part indicated by solid lines is the part for which the design registration is requested as a partial design. This design continues only to the left and right in the front view (Fig. 11(A)). The bottom view is omitted because it appears symmetrical to the plan view (FIG. 11(C)).

- Fig. 10 is a perspective view of the LED lighting fixture as viewed diagonally from the upper right side of the front.
- FIG. 11(A) is a front view of the LED lamp.
- Fig. 11(B) is a rear view of the LED lamp.
- FIG. 11(C) is a plan view of the LED lamp.
- Fig. 11(D) is a right side view of the LED lamp.
- FIG. 11(E) is a left side view of the LED lamp.
- FIG. 11(F) is an enlarged view in which the right side view shown in FIG. 11(D) is enlarged almost twice.
- FIG. 11(G) is an enlarged view obtained by enlarging the left side view shown in FIG. 11(E) almost twice.

Also, in FIGS. 10 and 11, by replacing all the parts indicated by broken lines with solid lines, the overall design of the article "LED lamp" according to the design can be grasped. Also in this overall design, the design continues only to the left and right in the front view (Fig. 11(A)). The bottom view is omitted because it appears symmetrical to the plan view (FIG. 11(C)).

Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications or changes of the above-described specific examples. In addition, the technical elements described in this specification or in the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims as filed. Furthermore, the techniques exemplified in this specification or drawings achieve a plurality of purposes at the same time, and achieving one of them has technical utility in itself. It should be noted that descriptions in parentheses in the column of [Description of Reference Symbols] can clearly indicate the correspondence relationship between the terms used in each of the above-described embodiments and the terms described in the scope of claims.

2... Track 3a... Side wall surface (mounted portion)
4a... Front wall surface (mounting part)
5a...Ceiling surface (mounting part)
6...Floor surface (mounting part)
7...Corner (mounting part)
9 Luggage compartment 10, 10', 60 LED lamp 11, 61 Base (base portion)
12, 13, 62, 63... Sidewall part 12a... Side surface (one surface)
13a... Side (other side)
Reference Signs List 14 Corner portions 15, 16 Bent portions 17, 18, 67, 68 Engaging portions (base-side engaging portions)
17a, 18a, 67a, 68a... Claw portion 20... Light unit (lens portion)
21... Glove (lens portion)
23... Lens (Translucent part)
25, 26...L angle portion (second lens side engaging portion)
27, 28... Engaging portion (lens side engaging portion)
DESCRIPTION OF SYMBOLS 27a, 28a... Claw part 30... LED module 31... LED board 32... LED chip 34... Board holder (holder part)
35 Main body portion 35a Engagement groove (holder-side engagement portion)
38... End cap 41, 46... Blank cover 43, 44... Engagement part 43a, 44a... Claw part 51, 52, 71, 72... End cover (blank cover)
DT...Double-sided tape OW...Transition wiring SP...Internal space

Claims (4)

a rectangular LED substrate on which a plurality of light emitting diodes are mounted;
It has a rectangular lens-side engagement portion provided in the longitudinal direction on both sides in the width direction, and has a light-transmitting portion, and is provided on both sides in the width direction. a lens part;
It has a base side engaging portion which has a larger thermal expansion coefficient or a linear expansion coefficient than the lens side engaging portion and which is located inside the lens side engaging portion in the lateral direction, and can be attached to the attached portion. and a
The lens portion to which the LED board is attached is detachably engaged with the base portion attached to the attached portion, and the lens side engaging portion is the base portion side engaging portion. An LED lamp, characterized in that it engages from the outside in the lateral direction . 2. The LED lamp according to claim 1, wherein the base portion has one surface and the other surface forming a corner projecting in a direction opposite to the side on which the lens portion is attached. a holder portion for holding the LED substrate, and the LED substrate is attached to the lens portion via the holder portion,
The lens portion has a second lens side engaging portion,
3. The LED lighting device according to claim 1 , wherein the holder portion has a holder-side engaging portion that can be engaged with the second lens-side engaging portion. where the base portion has an elongated shape longer than the longitudinal length of the lens portion and there may be gaps on one or both sides of the lens portion engaging the base portion; or
where there may be a gap between the two lens portions that the base portion has an elongated shape that is longer than twice the longitudinal length of the lens portion and that engages the base portion,
The LED lighting device according to any one of claims 1 to 3 , wherein a blank cover having a length corresponding to the width of said gap is engaged with and attached to said base portion.

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