Lighting equipment

Abstract

To provide a lighting fixture 3 capable of surely mounting a lighting fixture-side connector 34 without increasing costs of a product, with respect to a mounting structure of the lighting fixture-side connector 34 to mount the lighting fixture 3 on a lighting fixture mounting device 2.SOLUTION: The lighting fixture 3 detachably mounted on the lighting fixture mounting device 2, includes: a base 33 provided with a light source portion 30 at a side of a first surface 3300, and formed with a through hole 331 penetrating through the first surface 3300 and a second surface 3301 as a surface opposite to the first surface; and a lighting fixture-side connector 34 mounted on the base 33 and connected to a device side connector 23 of the lighting fixture mounting device 2, and including a base portion 350 at least partially disposed on a region not overlapped to the through hole 331 at the side of the first surface 3300, and a connecting portion 346 formed integrally with the base portion 350 and disposed at the side of the second surface 3301 via the through hole 331.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a lamp that is detachably attached to a lamp mounting fixture, and a lighting device including the lamp, and to an attachment structure of a lamp side connector for mounting the lamp to the lamp mounting fixture. [Background technology]

[0002] Conventionally, there have been lighting fixtures that use light-emitting diodes (hereinafter referred to as LEDs) as a light source instead of lighting fixtures that use fluorescent lamps. The lighting fixtures include a fixture body that is attached to a mounting portion such as a ceiling, and an LED module that uses an LED as a light source, and the LED module is detachably attached to the fixture body by a spring member that engages with a spring receiver by its restoring force (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6491533 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the lighting device disclosed in Patent Document 1, the spring receiver that engages by the restoring force of the spring member attached to the fixture body is disposed on the upper surface of the line LED module M that faces the fixture body and is fixed with a screw. In other words, since stress such as the weight of the line LED module M and the restoring force of the spring member are concentrated on the screw, it was necessary to use a robust screw or multiple screws that can withstand long-term use of the lighting device.

[0005] The use of such a screw or multiple screws increases the cost of the product.

[0006] The present disclosure is devised to solve the above-mentioned problems, and provides a lamp and a lighting device that can reliably attach a lamp-side connector without increasing the cost of the product. [Means for solving the problem]

[0007] The lamp according to the present disclosure is a lamp that is detachably attached to a lamp mounting fixture, and includes a base having a light source disposed on a first surface side and a through hole penetrating the first surface and a second surface opposite the first surface; a connecting portion that is inserted into the through hole from the first surface side and connected to a fixture-side connecting portion of the lamp mounting fixture, and a base portion that is formed by bending the through hole side of the connecting portion and is arranged to contact the first surface side; A light fixture side connector having 、 It is equipped with the following:

[0008] The lighting device according to the present disclosure includes a lamp having the above-described configuration, and a lamp mounting device that is attached to a construction section and includes a mounting part to which the lamp is detachably attached. Effect of the Invention

[0009] The lamp according to the present disclosure includes a base having a through hole formed through a first surface and a second surface opposite to the first surface, and a lamp side coupler attached to the base and coupled to a fixture side coupler included in the fixture, the lamp side coupler having a base part at least a part of which is disposed in an area not overlapping with the through hole on the first surface side, and a coupling part formed integrally with the base and disposed on the second surface side via the through hole. Therefore, the lamp side coupler is securely attached to the base by the base part disposed in an area not overlapping with the through hole on the first surface side of the base. [Brief description of the drawings]

[0010] [Figure 1] 1 is a perspective view of a lighting device according to a first embodiment. [Diagram 2] 1 is a perspective view of an illumination device according to a first embodiment, the illumination device being divided into an appliance and a lamp. [Diagram 3] FIG. 1 is a perspective view of a lighting fixture according to a first embodiment. [Figure 4] FIG. 2 is an exploded perspective view of the lighting fixture according to the first embodiment. [Diagram 5]1A and 1B are enlarged perspective views showing a main part of a lighting fixture according to a first embodiment, in which (a) shows a state in which a spring receiver is not attached to a base, and (b) shows a state in which the spring receiver is attached to the base. [Figure 6] 6A and 6B are cross-sectional views showing a main part of the lamp according to the first embodiment, in which (a) is a cross-sectional view in which the longitudinal direction X of the lamp is the normal direction, and (b) is a cross-sectional view taken along line AA in FIG. 6A. [Figure 7] 11A and 11B are enlarged perspective views showing the main parts of a lighting fixture according to embodiment 2, in which (a) shows a state in which the spring receiver is not attached to the base, and (b) shows a state in which the spring receiver is attached to the base. [Figure 8] 8A and 8B are cross-sectional views showing a main part of a lamp according to a second embodiment, in which (a) is a cross-sectional view in which the longitudinal direction X of the lamp is the normal direction, and (b) is a cross-sectional view taken along line AA in FIG. 8A. [Figure 9] 11A and 11B are enlarged perspective views showing the main parts of a lighting fixture according to embodiment 3, in which (a) shows a state in which the spring receiver is not attached to the base, and (b) shows a state in which the spring receiver is attached to the base. [Figure 10] 10A and 10B are cross-sectional views showing a main part of a lamp according to embodiment 3, in which (a) is a cross-sectional view taken along the longitudinal direction X of the lamp as a normal direction, and (b) is a cross-sectional view taken along the line BB in FIG. 10A. [Figure 11] 11A and 11B are enlarged perspective views showing the main parts of a lighting fixture according to embodiment 4, in which (a) shows a state in which the spring receiver is not attached to the base, and (b) shows a state in which the spring receiver is attached to the base. [Figure 12] 12A and 12B are cross-sectional views showing a main part of a lamp according to embodiment 4, in which (a) is a cross-sectional view taken along the longitudinal direction X of the lamp as a normal direction, and (b) is a cross-sectional view taken along CC in FIG. 12A. [Figure 13] 13A and 13B are enlarged perspective views showing the main parts of a lighting fixture according to embodiment 5, in which (a) shows a state in which the spring receiver is not attached to the base, and (b) shows a state in which the spring receiver is attached to the base. [Figure 14]14A and 14B are cross-sectional views showing a main part of a lamp according to embodiment 5, in which (a) is a cross-sectional view in which the longitudinal direction X of the lamp is the normal direction, and (b) is a cross-sectional view taken along line DD in FIG. 14A. [Figure 15] 13 is an enlarged perspective view showing a main part of a lighting fixture according to embodiment 6, in which (a) shows a state in which the spring receiver is not attached to the base, and (b) shows a state in which the spring receiver is attached to the base. FIG. [Figure 16] 13A and 13B are cross-sectional views showing the main parts of a lighting fixture according to embodiment 6, in which (a) is a cross-sectional view in which the longitudinal direction X of the lighting fixture is the normal direction, and (b) is a top view of the spring receiver attached to the base as viewed from above. [Figure 17] 13 is an enlarged perspective view showing a main part of a lighting fixture according to embodiment 7, in which (a) shows a state in which the spring receiver is not attached to the base, and (b) shows a state in which the spring receiver is attached to the base. [Figure 18] 18A and 18B are cross-sectional views showing a main part of a lamp according to embodiment 7, in which (a) is a cross-sectional view taken along the longitudinal direction X of the lamp as a normal direction, and (b) is a cross-sectional view taken along the line FF in FIG. 18A. [Figure 19] 13 is an enlarged perspective view showing a main part of a lighting fixture according to embodiment 8, in which (a) shows a state in which the spring receiver is not attached to the base, and (b) shows a state in which the spring receiver is attached to the base. FIG. [Figure 20] 13A and 13B are cross-sectional views showing the main parts of a lighting fixture according to an eighth embodiment, in which (a) is a cross-sectional view in which the longitudinal direction X of the lighting fixture is the normal direction, and (b) is a top view of the spring receiver attached to the base as viewed from above. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, a lamp and a lighting device according to an embodiment of the present disclosure will be described with reference to the drawings. The same or corresponding components are denoted by the same reference numerals, and repeated description may be omitted.

[0012] The present invention is not limited to the embodiments described below. In addition, the size relationship of each component in the following drawings may differ from the actual one. In addition, directions or positions may be indicated in the description of the embodiments. These notations are written as such for the convenience of explanation, and do not limit the arrangement, direction, or orientation of the lighting device, the lamp mounting device, the lamp, or parts.

[0013] Embodiment 1 The configuration of the lighting device according to the first embodiment will be described with reference to Fig. 1 to Fig. 6. Fig. 1 is a perspective view showing a configuration example of the lighting device according to the first embodiment. Fig. 2 is a divided perspective view of the lighting device shown in Fig. 1 divided into an appliance and a lamp.

[0014] The lighting device 1 is an elongated lighting device as shown in Fig. 1. The lighting device 1 has a fixture 2 that is attached to a structure 9 such as a ceiling or a wall, and a luminaire 3 that is detachably attached to the fixture 2. The fixture 2 is also called a luminaire mounting fixture or a luminaire body. The luminaire 3 is also called a light source unit.

[0015] 1 and 2, for convenience of explanation, the longitudinal direction of the fixture 2 is defined as the X direction, the lateral direction of the fixture 2 is defined as the Y direction, and the direction perpendicular to the X direction and the Y direction is defined as the Z direction. Z1 shown in each figure is the direction in which the lighting fixture 3 is attached to the fixture 2, and Z2 is the direction in which the lighting fixture 3 is removed from the fixture 2.

[0016] The fixture 2 has a fixture body 20 that extends in the longitudinal direction of an elongated shape, and fixture ends 21 that are attached to both ends of the fixture body 20. A fixture outer surface 202 that is inclined with respect to a surface to which the fixture 2 is attached, such as a ceiling, is provided on a side surface in the longitudinal direction of the fixture body 20. A knockout portion 210 is provided on the fixture end 21. The knockout portion 210 is removed, for example, when pulling in an electric wire from an adjacent lighting device. As shown in FIG. 2, the fixture 2 is formed with a lamp mounting portion 22 that is a space for accommodating the lamp 3. A spring 23, a terminal block 24, and a fixture-side electric wire 25 including a power supply line and a control signal line are arranged in the lamp mounting portion 22.

[0017] FIG. 3 is a perspective view of the lighting fixture shown in FIG. 2 when viewed from the side of the construction section 9. FIG. 4 is an exploded perspective view of the lighting fixture shown in FIG. 3. The lighting fixture 3 has a light source section 30, a base 33 serving as a base on which the light source section 30 is placed on the first surface 3300, a spring receiver 34 serving as a lighting fixture side connector connected to a spring 23 serving as an appliance side connector, a translucent outer casing 39, a power source section 40 that generates lighting power, a power supply line 43 serving as a path for supplying lighting power from the power source section 40 to the light source section 30, a protective cover 50, lighting fixture side electric wires 70 including a power supply line and a control signal line, and an electric wire arrangement device 80 that holds the lighting fixture side electric wires 70. The light source section 30 is also referred to as a light source, etc.

[0018] One end of the fixture-side electric wire 70 of the lighting fixture 3 is connected to the power supply unit 40, and the other end is electrically connected to the fixture-side electric wire 25 arranged in the fixture 2, thereby forming a path for supplying external power from outside the lighting device 1. The lighting fixture 3 is fixed to the fixture 2 by connecting the spring 23 arranged in the fixture 2 and the spring receiver 34 arranged in the lighting fixture 3. The spring 23 is a fixture-side connector, and the spring receiver 34 is a lighting fixture-side connector. The spring receiver 34 will be described in detail later.

[0019] One end of the power supply line 43 is connected to the power supply unit 40, and the other end is connected to the power receiving unit 314 of the light source unit 30. The power supply line 43 serves as a path through which lighting power is supplied from the power supply unit 40 to the light source unit 30.

[0020] The light source unit 30 has a light source substrate 31 provided with light-emitting elements 32 that emit light using lighting power received via a power supply line 43, and a power receiving unit 314 provided on the light source substrate 31 and serving as a path for supplying lighting power to the light-emitting elements 32. The light source substrate 31 has one surface 310 on which the light-emitting elements 32 are arranged, and another surface 311 that is the surface opposite to the one surface 310.

[0021] The light emitting element 32 is a light emitting unit that receives lighting power supplied from the power supply unit 40 via the power supply line 43 and emits light. The light emitting element 32 is, for example, a light emitting element such as an LED surface-mounted on the light source substrate 31. In the first embodiment, an LED is used as the light emitting element 32, but the light emitting element 32 is not limited to an LED. In the configuration example shown in each figure, a plurality of light emitting elements 32 are provided on one surface 310 of the light source substrate 31. The light emitting element 32 may be a combination of an LED and another light source. The power receiving unit 314 is provided on at least one of the one surface 310 and the other surface 311 of the substrate 32. The power receiving unit 314 relays the lighting power supplied from the power supply unit 40 to the light source unit 30.

[0022] The base 33 has a first surface 3300 which faces the other surface 311 of the light source substrate 31 and supports the light source unit 30, and a second surface 3301 which is the surface opposite to the first surface 3300 and supports the power supply unit 40. The light source unit 30 is attached to the first surface 3300 of the base 33. The base 33 has an arrangement section 330 which is a base provided with the first surface 3300 which supports the light source unit 30 and the second surface 3301 which supports the power supply unit 40, and a side section 339 to which the outer shell section 39 is attached.

[0023] The outer shell 39 is a light-transmitting cover formed using glass, a resin material, or the like. The outer shell 39 has a cover main part 390 extending in the longitudinal direction of the lamp 3, and cover end parts 391 provided at both ends of the cover main part 390. The cover main part 390 has a light-transmitting part 391 that transmits light emitted from the light source part 30, and an attachment part 392 that is attached to the base 33. In detail, the attachment part 392 is composed of a first attachment part 393 that is formed along the arrangement part 330 of the base 33 and supports the arrangement part 390, and a second attachment part 394 that is formed along the side part 339 of the base 33 and attached to the side part 339. The outer shell 39 covers the light source part 30 in a state where it is attached to the first surface 3300 of the base 33.

[0024] An electric wire insertion hole 336 penetrating the first surface 3300 and the second surface 3301 is formed in the placement portion 330 of the base 33 to insert the power supply line 43. It is preferable that the electric wire insertion hole 336 has a shape, size, and arrangement that can ensure insulation with the power supply line 43. A board through hole 312 penetrating the light source board 31 is formed in the light source board 31 at a position overlapping with the electric wire insertion hole 336 in the normal direction (Z direction) of the one surface 310.

[0025] The power supply unit 40 is fixed to the base 33 using a fixture 85 in a state in which a part of the housing 42 is inserted into a power supply support portion 333 which is a cut-out portion formed in the base 33 .

[0026] The protective cover 50 is attached to the base 33 so as to cover the electric wire insertion hole 336, the board through hole 321, and further the portion of the power supply line 43 inserted into the electric wire insertion hole 336 and the board through hole 312. The protective cover 50 is attached to the protective cover attachment hole 337 provided in the arrangement portion 330 of the base 33 by a method such as slide attachment or snap fit attachment. In order to attach the protective cover 50 to the base 33 more firmly, fasteners such as screws and rivets may be used. The portion of the power supply line 43 covered by the protective cover 50 is not likely to be damaged because it is avoided from contact with the outside during assembly, transportation, and installation of the lighting fixture 3.

[0027] The electric wire arrangement tool 80 is used, for example, to arrange, on the base 33, a power supply line and a control signal line that are connected to a functional component added to the lighting fixture 3. The electric wire arrangement tool 80 protects the power supply line and the control signal line by preventing them from coming into contact with a hanging bolt or the like. The electric wire placement tool 80 is attached to an electric wire placement tool attachment hole 332 provided in the placement portion 330 of the base 33 by a method such as slide attachment or snap fit attachment.

[0028] FIG. 5 is an enlarged perspective view showing the main part of the lamp according to the first embodiment. Specifically, FIG. 5(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 5(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 6 is a cross-sectional view showing the main part of the lamp according to the first embodiment. Specifically, FIG. 6(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 6(b) is a cross-sectional view with the short side direction Y of the lamp as the normal direction, and is a cross-sectional view taken along the line AA in FIG. 6(a). Note that in FIG. 6(b), the outer shell part 39 is omitted from the illustration.

[0029] The spring receiver 34, which is a lamp side connector, is provided on the lamp 3 in correspondence with the spring 23, which is a fixture side connector provided on the fixture 2. In the first embodiment, the spring receiver 34 is disposed on the end side of the lamp 3 in the longitudinal direction X. The spring receiver 34 has a receiver main body 340 provided with a spring engagement portion 346 that engages with the spring 23, a flange portion 350 that is connected to the end of the receiver main body 340 and extends in a direction intersecting the receiver main body 340, and a claw portion 355 formed by bending a part between the spring engagement portion 346 and the flange portion 350 in the receiver main body 340. In the first embodiment, the spring device 34 is formed by bending a metal plate. The flange portion 350 is also referred to as a base portion. The claw portion 355 is also referred to as a holding portion.

[0030] The receiver main body 340 is formed with a spring insertion portion 345 which is a through hole. The spring insertion portion 345 is formed in a shape corresponding to the spring 23 arranged in the fixture 2. In the first embodiment, the shape of the spring insertion portion 345 is trapezoidal so that the lamp 3 is mounted at an appropriate position in the lamp mounting portion 22, but is not limited to this. When the spring insertion portion 345 is mounted on the base 33, the edge of the spring insertion portion 345 which is located away from the base 33 becomes a spring engagement portion 346 which engages with the spring 23. The spring receiver 34 is connected to the spring 23 in a state in which the spring 23 engages with the spring engagement portion 346. The spring insertion portion 345 and the spring engagement portion 346 are connection portions for connecting the spring receiver 34 and the spring 23. The lamp 3 is attached to the fixture 2 in a state in which the spring 23 and the spring receiver 34 are connected.

[0031] A spring receiver attachment hole 331, which is a through hole, is formed in the arrangement portion 330 of the base 33, and the spring receiver 34 is attached to the arrangement portion 330 of the base 33 with the receiver main body portion 340 inserted into the spring receiver attachment hole 331. The spring receiver attachment hole 331 is formed in a shape corresponding to a cross-sectional shape of the receiver main body portion 340 whose normal direction is the insertion direction (Z direction), and in the first embodiment, for example, is formed in a slit shape corresponding to the thickness dimension and width dimension of the receiver main body portion 340.

[0032] The flange portion 350 is formed by bending an end portion of the receiver main body 340 on the opposite side to the spring engagement portion 346 with the spring insertion portion 345 therebetween. The flange portion 350 is formed at positions on both end sides in the short direction Y when the spring receiver 34 is attached to the base 33. When the spring receiver 34 is attached to the base 33, the flange portion 350 is disposed on the side of the first surface 3300 of the arrangement portion 330 so as to face the first surface 3300.

[0033] The flange portion 350 is disposed closer to the center than the receiver main body portion 340 in the longitudinal direction X when the spring receiver 34 is attached to the base 33. The flange portion 350 is formed so as to be disposed in an area of ​​the first surface 3300 of the arrangement portion 330 where the light source portion 30 is not disposed. That is, the light source portion 30 is disposed in an area of ​​the first surface 3300 of the arrangement portion 330 where the flange portion 350 is not disposed. In the first embodiment, the light source portion 30 is disposed between the two flange portions 350. Although the connecting portions such as the spring insertion portion 345 and the spring engagement portion 346 partially overlap with the light source portion 30 along the Z direction, the flange portion 350, which is the base portion, is disposed in an area separated from the light source portion 30 in the arrangement portion 330.

[0034] The claw portion 355 is composed of an end claw portion 351 cut and raised so as to protrude toward the end side from the receiver main body portion 340 in the longitudinal direction X, which is the opposite direction to the direction in which the flange portion 350 extends, and a center claw portion 352 cut and raised so as to protrude toward the center side from the receiver main body portion 340 in the longitudinal direction X, which is the direction in which the flange portion 350 extends. The claw portion 355 has an elastically deformable shape, and can pass through the spring receiver attachment hole 331 in an elastically deformed state. And, in a state in which the spring receiver 34 is attached to the base 33, the claw portion 355 is formed so that its tip portion faces the second surface 3301 of the arrangement portion 330 of the base 33.

[0035] The spring support 34 is attached to the base 33 by inserting the support main body 340 into the spring support mounting hole 331 formed in the placement portion 330 of the base 33 from the first surface 3300 side toward the second surface 3301 side of the placement portion 330, until the tip ends of the claw portions 355 (end side claw portions 356, central side claw portions 35) are positioned facing the second surface 3301 of the placement portion 330 of the base 33.

[0036] (effect) The lighting device 3 of the first embodiment has the base 33 and the spring receiver 34 described above.

[0037] With the spring receiver 34 attached to the base 33, the flange portion 350, which has an area larger than that of the spring receiver mounting hole 331, is disposed in an area on the first surface 3300 side of the arrangement portion 330 that does not overlap with the spring receiver mounting hole 331, faces the first surface 3300, and supports the base 33 from the side of the first surface 3300. Therefore, when the lighting device 1 is installed or used, there is no risk that the spring receiver 34 will come off the base 33 due to the weight of the lamp 3 or the elastic force of the spring 23.

[0038] With the spring receiver 34 attached to the base 33, the tip of the claw portion 355 consisting of the end-side claw portion 351 and the center-side claw portion 352 faces the second surface 3301 of the arrangement portion 330 of the base 33, and a mutually engaged state is maintained. Therefore, the spring receiver 34 can be attached to the base 33 and the attached state is maintained without using fasteners such as screws and rivets. It should be noted that, when the light source unit 30 is arranged on the first surface 3300 of the arrangement portion 330, the flange portion 350 may have a function of guiding the light source unit 30 so that the light source unit 30 is arranged in an appropriate position.

[0039] Embodiment 2 The configuration of the lighting device of the second embodiment will be described with reference to Fig. 7 and Fig. 8. In the second embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0040] FIG. 7 is an enlarged perspective view showing the main part of the lamp according to the second embodiment. Specifically, FIG. 7(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 7(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 8 is a cross-sectional view showing the main part of the lamp according to the second embodiment. Specifically, FIG. 8(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 8(b) is a cross-sectional view with the short side direction Y of the lamp as the normal direction, and is a cross-sectional view taken along the line AA in FIG. 8(a). Note that in FIG. 8(b), the outer shell part 39 is omitted from the illustration.

[0041] The lamp 3 according to the second embodiment includes a spring receiver 34a different from that of the first embodiment.

[0042] The spring receiver 34a has a receiver body 340a consisting of a first body 341 and a second body 342. A spring insertion portion 345a which is a through hole is formed in the first body 341 and the second body 342. When the spring receiver 34a is attached to the base 33a, the two spring insertion holes 345a are arranged to communicate with each other, and the spring 23 is inserted into the two spring insertion holes 345a.

[0043] The first body portion 341 and the second body portion 342 are connected to each other in a state in which their ends on the spring engagement portion 346a side are elastically deformable. When the spring receiver 34a is not attached to the base 33a, the first body portion 341 and the second body portion 342 form a V shape with the end on the spring engagement portion 346a side as the apex.

[0044] The arrangement portion 330a of the base 33a is formed with a spring receiver mounting hole 331a, which is a through hole, and the receiver main body portion 340a is inserted into the spring receiver mounting hole 331a while undergoing elastic deformation when the first main body portion 341 and the second main body portion 342 are overlapped. The receiver main body portion 340a is inserted into the spring receiver mounting hole 331a while the flange portion 350a side narrows toward the center of the spring receiver mounting hole 331a. When the receiver main body portion 340a is inserted into the receiver mounting hole 331a, the first main body portion 341 and the second main body portion 342 press the edge portion of the spring receiver mounting hole 331a in the X direction. The spring receiver 34a is firmly attached to the arrangement portion 330a of the base 33a by the pressing force caused by the elastic deformation. The spring support mounting hole 331a is formed in a shape corresponding to the cross-sectional shape of the support main body 340a whose normal direction is the insertion direction (Z direction), and in embodiment 2, for example, is formed in a slit shape corresponding to the thickness and width dimensions of the support main body 340a.

[0045] The flange portion 350a is composed of an end flange portion 351 formed on the first main body portion 341 and a center flange portion 352 formed on the second main body portion 342. The end flange portion 351 is formed by bending an end portion of the first main body portion 341 that is opposite the spring engaging portion 346a with the spring insertion portion 345a in between, and the center flange portion 352 is formed by bending an end portion of the second main body portion 342 that is opposite the spring engaging portion 346a with the spring insertion portion 345a in between. The end flange portion 351 and the center flange portion 352 are extended in directions away from each other. The flange portion 350a is arranged on the side of the first surface 3300 of the arrangement portion 330a so as to face the first surface 3300 in a state in which the spring receiver 34a is attached to the base 33a.

[0046] The end flange 351 and the central flange 352 are formed at positions on both end sides in the short direction Y when the spring receiver 34a is attached to the base 33a. The end flange 351 and the central flange 352 are arranged on the side of the first surface 3300 of the arrangement portion 330a when the spring receiver 34a is attached to the base 33a.

[0047] When the spring receiver 34a is attached to the base 33a, the end side flange portion 351 is positioned closer to the end side than the receiver main body portion 340a in the longitudinal direction X, and the central side flange portion 352 is positioned closer to the center than the receiver main body portion 340a in the longitudinal direction X when the spring receiver 34a is attached to the base 33a.

[0048] The claw portion 355a is composed of an end claw portion 356 formed on the first main body portion 341, and a center claw portion 357 formed on the second main body portion 342. The claw portion 355a is formed so as to protrude in the direction in which the flange portion 350a extends.

[0049] The end claw portion 356 is disposed on the end side of the receiver body portion 340a in the longitudinal direction X when the spring receiver 34a is attached to the base 33a, and the center claw portion 357 is disposed on the center side of the receiver body portion 340a in the longitudinal direction X when the spring receiver 34a is attached to the base 33a. The claw portion 355a has an elastically deformable shape and can pass through the spring receiver attachment hole 331a in an elastically deformed state. And, when the spring receiver 34a is attached to the base 33a, the claw portion 355a is formed so that its tip portion faces the second surface 3301 of the arrangement portion 330a of the base 33a.

[0050] Here, the end side flange 351 and the central side flange 352 of the flange 350a are so named for convenience of explanation, but this does not prevent the end side flange 351 from being disposed closer to the center than the receiver main body 340a in the longitudinal direction X, and the central side flange 352 from being disposed closer to the end than the receiver main body 340a in the longitudinal direction X. Also, the end side claw 356 and the central side claw 357 of the claw 355a are so named for convenience of explanation, but this does not prevent the end side claw 356 from being disposed closer to the center than the receiver main body 340a in the longitudinal direction X, and the central side claw 357 from being disposed closer to the end than the receiver main body 340a in the longitudinal direction X.

[0051] (effect) The spring receiver 34a is firmly attached to the arrangement portion 330a of the base 33a by applying a pressing force caused by elastic deformation of the first body portion 341 and the second body portion 342 to the edge portion of the spring receiver attachment hole 331a when the spring receiver 34a is attached to the base 33a. 。 MaIn addition, with the spring receiver 34a attached to the base 33a, the flange portion 350a, which has a larger area than that of the first embodiment, is disposed in an area that is on both sides of the receiver main body portion 340a in the longitudinal direction X of the lamp 3 and does not overlap with the spring receiver attachment hole 331a on the first surface 3300 side of the arrangement portion 330a, faces the first surface 3300, and supports the base 33a from the side of the first surface 3300. Therefore, there is no risk that the spring receiver 34a will come off the base 33a due to the weight of the lamp 3 or the elastic force of the spring 23 when the lighting device 1 is installed or used. The spring receiver 34a having the above-mentioned characteristics makes it possible to reduce the thickness dimension of the metal sheet, and is expected to have the effects of reducing the material cost and weight of the spring receiver 34a and the lamp 3 using the spring receiver 34a.

[0052] Embodiment 3 The configuration of the lighting device of the third embodiment will be described with reference to Fig. 9 and Fig. 10. In the third embodiment, the same components as those described in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0053] FIG. 9 is an enlarged perspective view showing the main part of the lamp according to the third embodiment. Specifically, FIG. 9(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 9(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 10 is a cross-sectional view showing the main part of the lamp according to the third embodiment. Specifically, FIG. 10(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 10(b) is a cross-sectional view with the short side direction Y of the lamp as the normal direction, and is a cross-sectional view taken along the line BB in FIG. 10(a). Note that in FIG. 10(b), the outer shell 39 is omitted from the illustration.

[0054] The lighting fixture 3 according to the third embodiment includes a spring receiver 34b different from those in the first and second embodiments. The spring receiver 34b includes a receiver main body 340b, a pair of flanges 350b formed integrally with the receiver main body 340b, and a pair of claws 355b.

[0055] The receiver main body 340b is composed of a rectangular top surface portion 343 and a pair of side surface portions 344 which are connected to a pair of opposing ends of the top surface portion 343 and are bent in an elastically deformable state.

[0056] A spring receiver attachment hole 331b, which is a through hole, is formed in the arrangement portion 330b of the base 33b, and the receiver main body portion 340b is inserted into the spring receiver attachment hole 331b while undergoing elastic deformation. A pair of side surface portions 344 of the receiver main body portion 340b are inserted into the spring receiver attachment hole 331b while the flange portion 350b side narrows toward the center of the spring receiver attachment hole 331b. With the receiver main body portion 340b inserted into the receiver attachment hole 331b, the pair of side surface portions 344 press the edge portion of the spring receiver attachment hole 331b in the Y direction. The spring receiver 34b is firmly attached to the arrangement portion 330b of the base 33b by the pressing force accompanying the elastic deformation.

[0057] The spring receiver mounting hole 331b is formed in a shape corresponding to the side surface portion 344 that elastically deforms in the Y direction, and in the third embodiment, for example, is formed in a rectangular shape corresponding to the maximum dimension of the side surface portion 344 in the X direction and the spacing dimension between a pair of side surface portions 344.

[0058] The flange portion 350b is formed by bending the ends of the pair of side surface portions 344 on the opposite side to the top surface portion 343, and is composed of a pair of side flange portions 353 extending in directions away from each other in the Y direction. The flange portion 350b is disposed on the side of the first surface 3300 of the arrangement portion 330b so as to face the first surface 3300 in a state in which the spring receiver 34b is attached to the base 33b.

[0059] The claw portions 355b are formed on the pair of side surface portions 344, respectively, and are composed of a pair of side claw portions 358 formed so as to protrude in directions away from each other in the Y direction. The claw portions 355b are formed so as to protrude in the direction in which the flange portion 350b extends.

[0060] The claw portion 355b has an elastically deformable shape and can pass through the spring receiver attachment hole 331b in an elastically deformed state. In addition, when the spring receiver 34b is attached to the base 33b, the claw portion 355b is formed so that a tip portion faces the second surface 3301 of the arrangement portion 330b of the base 33b.

[0061] In the third embodiment, when the spring receiver 34b is attached to the base 33b, the portion surrounded by the receiver main body 340b and the light source unit 30 becomes the spring insertion portion 345b through which the spring 23 can be inserted. In the third embodiment, the pair of side portions 344 forming the spring insertion portion 345b are inclined so that the distance between the side portions 344 in the Y direction becomes smaller toward the top surface portion 343 so that the lamp 3 is attached to the appropriate position of the lamp attachment portion 22, but this is not limited to this. In the third embodiment, the top surface portion 343 functions as a spring engagement portion 346b that engages with the spring 23. The spring receiver attachment hole 331b may be covered with an insulating sheet or the like so as not to expose the light source unit.

[0062] (effect) When the spring receiver 34b is attached to the base 33b, the pair of side portions 344 apply a pressing force caused by elastic deformation to the edge portions of the spring receiver attachment hole 331b in the Y direction, thereby firmly attaching the spring receiver 34b to the placement portion 330b of the base 33b. Furthermore, with the spring receiver 34b attached to the base 33b, the flange portion 350b is disposed in an area that is on both sides of the light source unit 30 in the short-side direction Y of the lamp 3 and does not overlap with the spring receiver attachment hole 331b on the first surface 3300 side of the arrangement portion 330b, faces the first surface 3300, and supports the base 33b from the side of the first surface 3300. Therefore, there is no risk that the spring receiver 34b will come off the base 33b due to the weight of the lamp 3 or the elastic force of the spring 23 when the lighting device 1 is installed or used.

[0063] Embodiment 4 The configuration of the lighting device of the fourth embodiment will be described with reference to Fig. 11 and Fig. 12. In the fourth embodiment, the same components as those described in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0064] FIG. 11 is an enlarged perspective view showing the main part of the lamp according to the fourth embodiment. Specifically, FIG. 11(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 11(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 12 is a cross-sectional view showing the main part of the lamp according to the fourth embodiment. Specifically, FIG. 12(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 12(b) is a cross-sectional view with the short side direction Y of the lamp as the normal direction, and is a cross-sectional view taken along CC in FIG. 12(a). Note that in FIG. 12(b), the outer shell part 39 is omitted from the illustration.

[0065] The lighting device 3 according to the embodiment 4 includes a spring receiver 34c that is different from those in the embodiments 1 to 3. The spring receiver 34c includes a receiver main body 340c, a flange portion 350c formed integrally with the receiver main body 340b, and a claw portion 355c.

[0066] The receiver main body 340c is composed of a rectangular top surface 343c, a side surface 344c connected to a pair of opposing ends of the top surface 343c and bent in an elastically deformable state, and a first main body 341c connected to at least one of the other pair of opposing ends of the top surface 343c and bent in an elastically deformable state. A spring insertion portion 345c, which is a through hole, is formed in the first main body 341c.

[0067] A spring receiver mounting hole 331b, which is a through hole, is formed in the arrangement portion 330b of the base 33b, and the receiver main body portion 340c is inserted into the spring receiver mounting hole 331b while being elastically deformed. A side surface portion 344c of the receiver main body portion 340c is inserted into the spring receiver mounting hole 331b while the flange portion 350c side narrows toward the center of the spring receiver mounting hole 331b, and a first main body portion 341c of the receiver main body portion 340c is inserted into the spring receiver mounting hole 331b while the flange portion 350c side narrows toward the center of the spring receiver mounting hole 331b. When the receiver main body portion 340c is inserted into the receiver mounting hole 331b, the pair of side portions 344c press against the Y-direction edge portions of the spring receiver mounting hole 331b, and the first main body portion 341c presses against one of the X-direction edge portions of the spring receiver mounting hole 331b.

[0068] The spring receiver 34c is firmly attached to the arrangement portion 330b of the base 33b by a pressing force due to elastic deformation. The spring receiver attachment hole 331b is formed in a shape corresponding to the side surface portion 344c that elastically deforms in the Y direction, and in the third embodiment, for example, is formed in a rectangular shape corresponding to the maximum dimension of the side surface portion 344c in the X direction and the distance between the pair of side surface portions 344c.

[0069] The first main body portion 341c is disposed between the pair of side surface portions 344c, and prevents the side surface portions 344c from being elastically deformed more than necessary in the Y direction.

[0070] The flange portion 350c is composed of a pair of side flange portions 353 formed by bending the ends of a pair of side portions 344c opposite the top surface portion 343c and extending away from each other in the Y direction, and an end flange portion 351 formed by bending the end of the first main body portion 341c opposite the top surface portion 343c and extending away from the top surface portion 343c in the X direction.

[0071] The claw portion 355c is formed on each of the pair of side surface portions 344c, and includes a pair of side claw portions 358 formed so as to protrude in directions away from each other in the Y direction, and an end claw portion 356c formed on the first main body portion 341c and formed so as to protrude in a direction away from the top surface portion 343c in the X direction. The claw portion 355c is formed so as to protrude in the direction in which the flange portion 350c extends.

[0072] The claw portion 355c has an elastically deformable shape and can pass through the spring receiver attachment hole 331b in an elastically deformed state. In addition, when the spring receiver 34c is attached to the base 33b, the claw portion 355c is formed so that a tip portion thereof faces the second surface 3301 of the arrangement portion 330b of the base 33b.

[0073] (effect) When the spring holder 34c is attached to the base 33c, the pair of side portions 344c apply a pressing force due to elastic deformation to the edge portions of the spring holder mounting hole 331b in the Y direction, and the first main body portion 341c applies a pressing force due to elastic deformation to one edge portion of the spring holder mounting hole 331b in the X direction, thereby firmly attaching the spring holder 34c to the arrangement portion 330b of the base 33b. In addition, when the spring receiver 34c is attached to the base 33b, the flange portion 350c is positioned in an area on both sides of the light source unit 30 in the short direction Y of the lamp 3, in an area that does not overlap with the spring receiver mounting hole 331b on the first surface 3300 side of the arrangement portion 330b, and in an area that does not overlap with the spring receiver mounting hole 331b on the first surface 3300 side of the arrangement portion 330b in the longitudinal direction X of the lamp 3, facing the first surface 3300, and supporting the base 33b from the side of the first surface 3300. The first main body portion 341c disposed between the pair of side surface portions 344c restricts the side surface portions 344c from elastically deforming toward the center in the short-side direction Y of the lighting fixture 3 more than necessary. Therefore, there is no risk that the spring receiver 34c will come off the base 33b due to the weight of the lamp 3 or the elastic force of the spring 23 when the lighting device 1 is installed or used.

[0074] Embodiment 5. The configuration of the lighting device of the fifth embodiment will be described with reference to Fig. 13 and Fig. 14. In the fifth embodiment, the same components as those described in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0075] FIG. 13 is an enlarged perspective view showing the main part of the lamp according to the fifth embodiment. Specifically, FIG. 13(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 13(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 14 is a cross-sectional view showing the main part of the lamp according to the fifth embodiment. Specifically, FIG. 14(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 14(b) is a cross-sectional view with the short side direction Y of the lamp as the normal direction, and is a DD cross-sectional view in FIG. 14(a). Note that the outer shell is omitted in FIG. 14(b).

[0076] The lighting device 3 according to the fifth embodiment includes a base 33d and a spring receiver 34d which are different from those of the first to fourth embodiments.

[0077] A step portion 338 is formed in the arrangement portion 330d of the base 33d. The step portion 338 may be, for example, an embossed type formed by drawing or a bridge type formed by cutting and drawing. The step portion 338 is formed so as to protrude toward the second surface 3301 of the arrangement portion 330d. The first surface 3300 side of the step portion 338 is a recessed portion 3380 recessed to a depth equal to or greater than the plate thickness dimension of the spring receiver 34d. A spring receiver attachment hole 331d, which is a through hole, is formed in the step portion 338, and the spring receiver 34d is attached to the step portion 338 formed in the arrangement portion 330d of the base 33d with the receiver main body 340d inserted through the spring receiver attachment hole 331d.

[0078] The spring receiver 34d has a receiver main body 340d, and a flange 350d and a bottom surface 349 formed integrally with the receiver main body 340d. The receiver main body 340d is composed of a rectangular top surface 343d and a pair of side surfaces 344d that are connected to a pair of opposing ends of the top surface 343d and bent in an elastically deformable state. A flange 350d and a bottom surface 349 that extend in a direction intersecting with the pair of side surfaces 344d are connected to the respective ends of the pair of side surfaces 344d opposite to the top surface 343d.

[0079] The flange portion 350d is formed by bending the ends of the pair of side portions 344d opposite the top surface portion 343d, and is composed of a pair of side flange portions 353d extending in a direction away from each other in the Y direction. The bottom surface portion 349 is formed by cutting and raising a part of the pair of side portions 344d, and bending the ends of the pair of side portions 344d opposite the top surface portion 343d, and is extended in a direction approaching each other in the Y direction.

[0080] The flange portions 350d and bottom surface portion 349 connected to the pair of side surface portions 344d are flush with each other in the folded state, and are housed in the recessed portion 3380 when the spring receiver 34d is attached to the step portion 338. That is, when the spring receiver 34d is attached to the base 33d, the flange portion 350d is arranged on the first surface 3300 side of the arrangement portion 330d so as to face the first surface 3300, and the bottom surface portion 349 is arranged on the first surface 3300 side of the arrangement portion 330d so as to cover the spring receiver attachment hole 331d.

[0081] In the fifth embodiment, when the spring receiver 34d is attached to the base 33d, the portion surrounded by the receiver main body 340d and the bottom surface portion 349 becomes a spring insertion portion 345d through which the spring 23 can be inserted.

[0082] In the fifth embodiment, the claw portion 355d is formed on one of the pair of side surface portions 344d, and is composed of a side claw portion 358d formed so as to protrude outward along the Y direction. The claw portion 355d is formed so as to protrude in the direction in which the flange portion 350d extends. Note that the claw portion 355d may be a pair of side claw portions 358d formed on each of the pair of side surface portions 344d so as to protrude in directions away from each other in the Y direction.

[0083] The receiver main body 340d is inserted into the spring receiver mounting hole 331d while undergoing elastic deformation. A pair of side surfaces 344d of the receiver main body 340d are inserted into the spring receiver mounting hole 331d while the flange 350b side narrows toward the center of the spring receiver mounting hole 331d. With the receiver main body 340d inserted into the receiver mounting hole 331d, the pair of side surfaces 344d press the edge of the spring receiver mounting hole 331d in the Y direction. The spring receiver 34d is firmly attached to the arrangement portion 330d of the base 33d by the pressing force caused by the elastic deformation.

[0084] With the light source unit 30 arranged on the first surface 3300 of the arrangement portion 330d, the bottom surface portion 349 is arranged between the first surface 3300 of the arrangement portion 330d and the other surface 311 of the substrate 31. Therefore, by aligning the depth dimension of the recessed portion 3380 with the plate thickness dimension of the bottom surface portion 349, with the light source unit 30 arranged on the arrangement portion 330d of the base 33d, the other surface 311 of the light source substrate 31 comes into contact with the bottom surface portion 349 and the first surface 3300 of the arrangement portion 330d. Even if the step portion 338 and the spring receiver attachment hole 331d are formed in the arrangement portion 330d, the bottom surface portion 349 functions as a heat dissipation path, and the operating heat of the light source unit 30 generated by lighting the light emitting element 32 is transferred to the base 33d almost evenly. The light source unit 30 may be disposed on the base 33d so that the other surface 311 of the substrate 31 contacts the flange portion 350d, and the width dimension (length dimension in the Y direction) of the substrate 31 may be set to be wide.

[0085] (effect) When the spring receiver 34d is attached to the base 33d, a pressing force caused by elastic deformation of the pair of side portions 344d is applied to the edge portions in the Y direction of the spring receiver attachment hole 331d, so that the spring receiver 34d is firmly attached to the arrangement portion 330d of the base 33d. The flange portions 350d and the bottom surface portion 349 connected to the pair of side surface portions 344d are flush in the folded state, and when the spring receiver 34d is attached to the step portion 338 formed in the arrangement portion 330d of the base 33d, the flange portion 350d and the bottom surface portion 349 are housed in the recessed portion 3380, and the bottom surface portion 349 is disposed between the first surface 3300 of the arrangement portion 330d and the other surface 311 of the substrate 31. For this reason, the bottom surface portion 349 functions as a heat dissipation path, and the operating heat of the light source unit 30 generated by turning on the light emitting element 32 is transferred to the base 33d almost evenly. The bottom surface portion 349d of the spring receiver 34d is formed by cutting and raising a part of the pair of side surface portions 344d. This allows the expanded dimension (area) of the spring receiver 34 to be reduced, making it possible to reduce the amount of sheet metal used as a material, and also contributing to weight reduction of the spring receiver 34, the lamp using the same, and the lighting device. With the spring receiver 34d attached to the step portion 338 formed in the arrangement portion 330d of the base 33d, the flange portion 350d is disposed on the first surface 3300 side of the arrangement portion 330d so as to face the first surface 3300, and supports the base 33b from the side of the first surface 3300. Therefore, when the lighting device 1 is installed or used, the spring receiver 34d is unlikely to come off the base 33d due to the weight of the luminaire 3 or the elastic force of the spring 23.

[0086] Embodiment 6 The configuration of the lighting device of the sixth embodiment will be described with reference to Fig. 15 and Fig. 16. In the sixth embodiment, the same components as those described in the first to fifth embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0087] FIG. 15 is an enlarged perspective view showing the main part of the lamp according to the sixth embodiment. Specifically, FIG. 15(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 15(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 16 is a cross-sectional view showing the main part of the lamp according to the sixth embodiment. Specifically, FIG. 16(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 16(b) is a top view seen from above in a state in which the spring receiver is attached to the base. Note that in FIG. 16(b), the outer shell is omitted from the illustration.

[0088] The lighting device 3 according to the sixth embodiment includes a spring receiver 34e different from those of the first to fifth embodiments. The spring receiver 34e has a receiver main body 340e and a bottom surface portion 349e formed integrally with the receiver main body 340e. The lighting device 3 according to the sixth embodiment will be described as using the base 33d described in the fifth embodiment, but is not limited thereto.

[0089] The receiver body 340e is composed of a first body 341e in which a spring insertion portion 345e, which is a through hole, is formed, and a pair of side portions 344e connected to both side ends of the first body 341e and bent in a manner that allows elastic deformation in the directions facing each other. The bottom portion 349e is connected to the lower end of the first body 341e and bent toward the pair of side portions 344e.

[0090] The bottom surface portion 349e is accommodated so as to cover substantially the entire recessed portion 3380 in a state in which the spring receiver 34e is attached to the step portion 338. In particular, in a state in which the spring receiver 34e is attached to the base 33d, the bottom surface portion 349e is disposed on the first surface 3300 side of the arrangement portion 330d so as to cover the spring receiver attachment hole 331d, and at least an end portion of the bottom surface portion 349e in the Y direction is disposed on the first surface 3300 side of the arrangement portion 330d so as to face the first surface 3300.

[0091] The receiver main body 340e is inserted into the spring receiver mounting hole 331d while undergoing elastic deformation. The pair of side surface portions 344e of the receiver main body 340e are inserted into the spring receiver mounting hole 331d while narrowing toward the center of the spring receiver mounting hole 331d as they move away from the first main body portion 341e. When the receiver main body 340e is inserted into the receiver mounting hole 331d, the pair of side surface portions 344e are released from elastic deformation, and at least the end portion opposite the first main body portion 341e expands outward from the edge of the spring receiver mounting hole 331d along the Y direction (arrow R in FIG. 16).

[0092] With the spring receiver 34e attached to the base 33d, the bottom surface portion 349e faces a first surface 3300 of the arrangement portion 330d at the step portion 338, and the pair of side surface portions 344e face a second surface 3301 of the arrangement portion 330d at the step portion 338. In other words, with the spring receiver 34e attached to the base 33d, the arrangement portion 330d at the step portion 338 is disposed so as to be sandwiched between the bottom surface portion 349e and the pair of side surface portions 344e, so that the spring receiver 34e is attached to the base 33d without coming off the arrangement portion 330d.

[0093] When the light source unit 30 is arranged on the first surface 3300 of the arrangement portion 330d, the bottom surface portion 349e is arranged between the first surface 3300 of the arrangement portion 330d and the other surface 311 of the substrate 31. Therefore, by aligning the depth dimension of the recessed portion 3380 with the plate thickness dimension of the bottom surface portion 349e, when the light source unit 30 is arranged on the arrangement portion 330d of the base 33d, the other surface 311 of the light source substrate 31 contacts the bottom surface portion 349e and the first surface 3300 of the arrangement portion 330d. Even if the step portion 338 and the spring receiver attachment hole 331d are formed in the arrangement portion 330d, the bottom surface portion 349e functions as a heat dissipation path, and the operating heat of the light source unit 30 generated by lighting the light emitting element 32 is transferred to the base 33d almost evenly.

[0094] (effect) When the spring receiver 34e is attached to the base 33d, the positioning portion 330d in the step portion 338 is positioned so as to be sandwiched between the bottom surface portion 349e and a pair of side surfaces 344e, so that there is no risk of the spring receiver 34e coming off the positioning portion 330d of the base 33d. When the spring support 34e is attached to the step portion 338, the bottom portion 349e is accommodated so as to extend over substantially the entire recess portion 3380, and a pair of side portions 344e constituting the support main body portion 340e are positioned on opposite sides of the spring support 34e with the positioning portion 330d in the step portion 338 in between, so that the spring support 34e is firmly attached to the positioning portion 330d of the base 33d. With the spring receiver 34e attached to the step portion 338 formed in the arrangement portion 330d of the base 33d, the bottom surface portion 349e is accommodated so as to cover substantially the entire recessed portion 3380, and the bottom surface portion 349e is disposed in a wide range between the first surface 3300 of the arrangement portion 330d and the other surface 311 of the substrate 31. This improves the function of the bottom surface portion 349e as a heat dissipation path, and the operating heat of the light source unit 30 generated by turning on the light emitting element 32 is more efficiently and substantially evenly transferred to the base 33d. The spring receiver 34e is formed by a simple bending process integrally with a first main body 341e, which is a receiver main body 340e, a pair of side portions 344e that are elastically bent and connected to both end portions of the first main body 341e, and a bottom portion 349e. There is no need to form finely processed portions such as the claws and flanges described in the first to fifth embodiments, and a highly rigid configuration can be achieved by simple processing. The spring receiver 34e is formed by a simple bending process integrally with the first main body 341e, which is the receiver main body 340e, a pair of side parts 344e that are elastically bent and connected to both side ends of the first main body 341e, and a bottom part 349e. There is no need to form finely processed parts such as the claw parts and the flange parts described in the first to fifth embodiments, and a highly rigid configuration can be obtained by simple processing. Therefore, when the lighting device 1 is installed or used, the spring receiver 34e is not likely to be deformed or come off the base 33d due to the weight of the lamp 3 or the elastic force of the spring 23.

[0095] Embodiment 7 The configuration of the lighting device of the seventh embodiment will be described with reference to Fig. 17 and Fig. 18. In the seventh embodiment, the same components as those described in the first to sixth embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0096] FIG. 17 is an enlarged perspective view showing the main part of the lamp according to the seventh embodiment. Specifically, FIG. 17(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 17(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 18 is a cross-sectional view showing the main part of the lamp according to the seventh embodiment. Specifically, FIG. 18(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 18(b) is a cross-sectional view with the short-side direction Y of the lamp as the normal direction, and is an FF cross-sectional view in FIG. 18(a). Note that the outer shell is not shown in FIG. 18(b).

[0097] The lighting fixture 3 according to the seventh embodiment includes a spring receiver 34f different from those of the first to sixth embodiments. The spring receiver 34f has a receiver main body 340f and a bottom surface portion 349f formed integrally with the receiver main body 340f. The lighting fixture 3 according to the seventh embodiment will be described as using the base 33d described in the fifth embodiment, as in the sixth embodiment, but is not limited thereto.

[0098] The spring receiver 34f has a receiver main body 340f and a bottom surface 349f formed integrally with the receiver main body 340f, which form a cylindrical shape as a whole. The spring receiver 34f can be formed, for example, by bending a single sheet of plate material so that the cross-sectional shape with the cylindrical direction as the normal direction is a trapezoid.

[0099] The spring receiver 34f is composed of a rectangular bottom surface portion 349f, a pair of side surface portions 344f which are inclined portions that gradually narrow upward from both ends of the bottom surface portion 349f in the Y direction, and a top surface portion 343f which is a portion extending from the upper end of the pair of side surface portions 344f in a direction in which the tips approach each other in parallel with the bottom surface portion 349f. The joints between the tips of the top surface portion 343f are joined by a method such as crimping, which improves the rigidity of the spring receiver 34f and makes it difficult to deform. Note that as long as the spring receiver 34f has the necessary rigidity and can withstand use, the joints between the tips do not necessarily have to be joined.

[0100] In the seventh embodiment, when the spring receiver 34f is attached to the base 33d, the portion surrounded by the receiver main body portion 340f and the bottom surface portion 349f becomes a spring insertion portion 345f through which the spring 23 can be inserted.

[0101] The bottom surface portion 349f is accommodated so as to cover substantially the entire recessed portion 3380 in a state in which the spring receiver 34f is attached to the step portion 338. In particular, in a state in which the spring receiver 34f is attached to the base 33d, the bottom surface portion 349f is disposed on the first surface 3300 side of the arrangement portion 330d so as to cover the spring receiver attachment hole 331d, and at least an end portion of the bottom surface portion 349f in the X direction is disposed on the first surface 3300 side of the arrangement portion 330d so as to face the first surface 3300.

[0102] The claw portion 355f is formed on each of the pair of side surface portions 344f, and is composed of a pair of side claw portions 358f formed to protrude in directions away from each other in the Y direction. The claw portion 355f has an elastically deformable shape, and can pass through the spring receiver attachment hole 331d in an elastically deformed state. Furthermore, when the spring receiver 34f is attached to the base 33d, the claw portion 355f is formed so that its tip portion faces the second surface 3301 of the arrangement portion 330d of the base 33d.

[0103] With the spring receiver 34f attached to the base 33d, the bottom surface portion 349f faces a first surface 3300 of the arrangement portion 330d at the step portion 338, and the pair of side claw portions 358f faces a second surface 3301 of the arrangement portion 330d at the step portion 338. In other words, with the spring receiver 34f attached to the base 33d, the arrangement portion 330d at the step portion 338 is disposed so as to be sandwiched between the bottom surface portion 349f and the pair of side claw portions 358f, so that the spring receiver 34f is attached to the base 33d without coming off the arrangement portion 330d.

[0104] (effect) When the spring receiver 34f is attached to the base 33d, the positioning portion 330d at the step portion 338 is positioned so as to be sandwiched between the bottom surface portion 349f and the claw portion 355f, so that there is no risk of the spring receiver 34f coming off the positioning portion 330d of the base 33d. The spring receiver 34f is integrally formed by simple bending so that the receiver body 340f and the bottom surface 349f form a cylindrical shape as a whole. Since the bending direction can be unified, a highly rigid configuration can be obtained by simple processing. Therefore, the spring receiver 34f is not likely to be deformed or come off the base 33d due to the weight of the luminaire 3 or the elastic force of the spring 23 when the lighting device 1 is installed or used. Other effects common to the fifth and sixth embodiments will not be described.

[0105] Embodiment 8 The configuration of the lighting device of the eighth embodiment will be described with reference to Fig. 19 and Fig. 20. In the eighth embodiment, the same components as those described in the first to seventh embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0106] FIG. 19 is an enlarged perspective view showing the main part of the lamp according to the eighth embodiment. Specifically, FIG. 19(a) is an enlarged perspective view showing a state in which the spring receiver is not attached to the base, and FIG. 19(b) is an enlarged perspective view showing a state in which the spring receiver is attached to the base. FIG. 29 is a cross-sectional view showing the main part of the lamp according to the sixth embodiment. Specifically, FIG. 16(a) is a cross-sectional view seen from the end side of the spring receiver in the longitudinal direction X to the center side with the longitudinal direction X of the lamp as the normal direction. Also, FIG. 20(b) is a top view seen from above in a state in which the spring receiver is attached to the base. Note that in FIG. 20(b), the outer shell is omitted from the illustration.

[0107] The lighting fixture 3 according to the eighth embodiment includes a spring receiver 34g different from those of the first to seventh embodiments. The spring receiver 34g is a partial modification of the spring receiver 34f described in the seventh embodiment. The lighting fixture 3 according to the eighth embodiment will be described as using the base 33d described in the fifth embodiment, as in the seventh embodiment, but is not limited thereto.

[0108] The spring receiver 34g has a receiver main body 340g and a bottom surface 349g formed integrally with the receiver main body 340g, which form a cylindrical shape as a whole. The spring receiver 34g can be formed, for example, by bending a single plate material so that the cross-sectional shape with the cylindrical direction as the normal direction is a trapezoid.

[0109] The spring receiver 34f is composed of a generally rectangular top surface 343g, a pair of side surfaces 344f which are inclined portions so as to gradually widen downward from both ends of the top surface 343g in the Y direction, and a bottom surface 349g which is a portion extending from the lower ends of the pair of side surfaces 344f in a direction in which the tips approach each other in parallel with the top surface 343g. The joints between the tips of the bottom surface 349g are joined by a method such as crimping, which improves the rigidity of the spring receiver 34g and makes it difficult to deform. Note that as long as the spring receiver 34g has the necessary rigidity and can withstand use, the joints between the tips do not necessarily have to be joined.

[0110] In the eighth embodiment, when the spring receiver 34g is attached to the base 33d, the portion surrounded by the receiver main body portion 340g and the bottom surface portion 349g becomes a spring insertion portion 345g through which the spring 23 can be inserted.

[0111] With the spring receiver 34g attached to the step portion 338, the bottom surface portion 349g is accommodated so as to cover substantially the entire recessed portion 3380. In particular, with the spring receiver 34g attached to the base 33d, the bottom surface portion 349g is disposed on the first surface 3300 side of the arrangement portion 330d so as to cover the spring receiver attachment hole 331d, and at least an end portion of the bottom surface portion 349g in the X direction is disposed on the first surface 3300 side of the arrangement portion 330d so as to face the first surface 3300.

[0112] With the spring receiver 34g attached to the base 33d, the bottom surface portion 349g faces a first surface 3300 of the arrangement portion 330d at the step portion 338, and the pair of side claw portions 358f faces a second surface 3301 of the arrangement portion 330d at the step portion 338. In other words, with the spring receiver 34g attached to the base 33d, the arrangement portion 330d at the step portion 338 is disposed so as to be sandwiched between the bottom surface portion 349g and the pair of side claw portions 358f, so that the spring receiver 34g is attached to the base 33d without coming off the arrangement portion 330d.

[0113] Top surface portion 343g has a notch 347 formed on an end edge that becomes spring engagement portion 346g that engages with spring 23. The width dimension WS of the narrowest portion of notch 347 is smaller than the width dimension WL of the top surface portion 343g that becomes the narrowest portion of spring insertion portion 345g. Notch 347 is a portion that guides the spring when a spring with a small width is used and is a portion that engages with the spring. Top surface portion 343g is designed to be compatible with both springs with a large width and springs with a small width.

[0114] (effect) When the spring receiver 34g is attached to the base 33d, the positioning portion 330d at the step portion 338 is positioned so as to be sandwiched between the bottom surface portion 349g and the claw portion 355f, so that there is no risk of the spring receiver 34g coming off the positioning portion 330d of the base 33d. The spring receiver 34g has a notch 347 on its end edge which forms the spring engagement portion 346g that engages with the spring 23. Therefore, when the lamp 3 is attached to the fixture 2, the center of the fixture 2 and the center of the lamp 3 in the Y direction can be aligned regardless of whether the spring receiver 34g is connected to a spring with a large width dimension or a spring with a small width dimension. It is possible to select a spring with a large width when the mass of the lamp is relatively large, and a spring with a small width when the mass of the lamp is relatively small. In particular, in a lighting device with a relatively small mass, the use of a spring with a small width can be expected to reduce costs. Other effects common to the fifth to seventh embodiments will not be described.

[0115] Although the lamp and the lighting device have been described based on the embodiment, the lamp and the lighting device are not limited to the configuration of the above embodiment. The configuration of the lighting device described above is an example, and may include other components. The lamp and the lighting device include the range of design changes and application variations that are normally made by a person skilled in the art, within the scope that does not deviate from the technical concept.

[0116] The lamp has been described as having a pair (two) spring receivers on the end side in the longitudinal direction X, but is not limited to this. For example, the lamp may have one spring receiver, or may have three or more spring receivers.

[0117] The spring receiver may also be adapted to engage with a spring other than the leaf spring of the present disclosure. For example, the spring receiver may be adapted to engage with a wire spring.

[0118] Furthermore, the area of ​​the arrangement portion facing the light source portion may be spaced apart from the light source portion along the Z direction, and a flange portion, which is, for example, the base of the spring support, may be disposed between the first surface of the arrangement portion and the light source portion. [Explanation of symbols]

[0119] 1 lighting device, 2 fixture, 20 fixture body, 200 top surface, 201 side surface, 202 fixture outer surface, 21 fixture end, 210 knockout portion, 22 fixture mounting portion, 23 spring, 24 terminal block, 25 fixture side electric wire, 3 fixture, 30 light source portion, 31 light source board, 310 one side, 311 other side, 312 board through hole, 314 power receiving portion, 32 light emitting element, 33, 33a, 33b, 33d base, 330, 330a, 330b, 330d placement portion, 3300 first side, 3301 second side, 331, 331a, 331b, 331d spring receiver mounting hole, 332 electric wire placement tool mounting hole, 333 power supply support portion, 334 power supply fixing portion, 335 Screw insertion hole, 336 electric wire insertion hole, 337 protective cover mounting hole, 338 step portion, 3380 recessed portion, 339 side portion, 34, 34a, 34b, 34c, 34d, 34e, 34f, 34g spring holder, 340, 340a, 340b, 340c, 340d, 340e, 340f, 340g holder main body portion, 341, 341c, 341e first main body portion, 342 second main body portion, 343, 343c, 343d, 343f, 343g top surface portion, 344, 344c, 344d, 344e, 344f Side portion, 345, 345a, 345b, 345c, 345d, 345e, 345f, 345g Spring insertion portion, 346, 346a, 346b, 346c, 346d, 346e, 346f, 346g Spring engagement portion, 347 Notch portion, 349 Bottom portion, 350, 350a, 350b, 350c, 350d Flange portion, 351 End side flange portion, 352 Center side flange portion, 353, 353d Side side flange portion, 355, 355b, 355c, 355d, 355f Claw portion, 356 End side flange portion, 357 Center side flange portion, 358, 358c, 358d, 358f Side claw portion, 39 outer shell portion (cover), 390 cover main portion, 391 light-transmitting portion, 392 mounting portion, 393 first mounting portion, 394 second mounting portion, 395 cover end portion, 40 power supply portion, 41 power supply board, 410 circuit components, 411 input portion, 412 output portion, 42 housing, 420 support piece, 421 screw hole, 43 power supply line, 50 protective cover, 70 lighting fixture side electric wire, 80 electric wire arrangement device, 85 fixing device, 9 construction portion.

Claims

1. A lamp that is detachably attached to a lamp mounting fixture, a base on which a light source is disposed on a first surface side and on which a through hole is formed passing through the first surface and a second surface opposite to the first surface; a lamp-side connector having a connecting portion that is inserted into the through hole from the first surface side and disposed on the second surface, and that is connected to a fixture-side connecting portion that the lamp mounting fixture has, and a base that is formed by bending the through hole side of the connecting portion and that is disposed so as to contact the first surface side; A lighting fixture equipped with.

2. The lamp according to claim 1 , wherein the light source is attached to the base so as to overlap the connecting portion in the penetrating direction of the through hole, thereby the lamp side connector is attached to the base.

3. A lighting fixture as described in any one of claims 1 or 2, wherein the base is positioned so as not to overlap with the light source in the penetration direction of the through hole and so as to be in contact with the side of the first surface.

4. The base is a step portion formed so as to displace the first surface and the second surface in a direction away from the light source, The lamp side connector is The lamp according to claim 1 , wherein the base portion is attached to the base in a state in which the base portion is disposed on the step portion.

5. the lamp side connector has a claw portion provided on the through hole side of the connector portion and arranged to contact the second surface side, The lamp according to claim 1 , wherein the claw portion and the base portion sandwich the base, thereby attaching the lamp side connector to the base.

6. The lamp side connector is The lamp according to claim 5 , wherein the base portion and the claw portion are arranged so as not to overlap with each other along a direction in which the through hole penetrates.

7. The lamp side connector is The lamp according to claim 5 , wherein the base portion and the claw portion are arranged to overlap in a direction in which the through hole penetrates.

8. A lamp according to any one of claims 1 to 7, A lighting fixture mounting device is attached to the construction section and has a mounting section to which the lighting fixture is detachably mounted; A lighting device comprising:

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