Connecting member and lighting system

Abstract

To provide a connecting member capable of restraining positional deviation of a second light source unit with respect to a first light source unit.SOLUTION: A connecting member 10 connects a first light source unit 120 including a first light source side engagement portion 190, and a second light source unit 220 including a second light source side engagement portion 290. The connecting member 10 includes a base 20, and at least one wall 30. The base 20 extends along a first direction D1 from the first light source unit 120 toward the second light source unit 220 and extends over the first light source unit 120 and the second light source unit 220 in a connecting state in which the connecting member 10 connects the first light source unit 120 and the second light source unit 220. The wall 30 extends from the base 20 to a second direction D2 crossing the first direction D1, and includes a first engagement portion 31 and a second engagement portion 32 arranged in the first direction D1. In the connecting state, the first engagement portion 31 is engaged with the first light source side engagement portion 190, and the second engagement portion 32 is engaged with the second light source side engagement portion 290.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a connecting member and a lighting system.

Background Art

[0002] The lighting device described in Patent Document 1 is long. The lighting device includes a main body and an LED module (light source unit) attached to the main body. The LED module is composed of two single LED modules.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the lighting device described in Patent Document 1 does not include a member for connecting a plurality of lighting devices in the longitudinal direction. Therefore, misalignment may occur between adjacent lighting devices. That is, misalignment may occur between the LED modules provided in each of the adjacent lighting devices.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a connecting member and a lighting system capable of suppressing misalignment of a second light source unit with respect to a first light source unit.

Means for Solving the Problems

[0006] The connecting member disclosed in the present application connects a first light source unit including a first light source side engaging portion and a second light source unit including a second light source side engaging portion. The connecting member includes a base portion and at least one wall portion. The base portion extends along a first direction from the first light source unit toward the second light source unit in a connected state where the connecting member connects the first light source unit and the second light source unit, and straddles the first light source unit and the second light source unit. At least one wall portion extends from the base portion in a second direction intersecting the first direction. The wall portion includes a first engaging portion and a second engaging portion arranged in the first direction. In the connected state, the first engaging portion engages with the first light source side engaging portion. In the connected state, the second engaging portion engages with the second light source side engaging portion.

[0007] The lighting system disclosed in the present application includes the connecting member described above, the first light source unit, and the second light source unit.

Advantages of the Invention

[0008] According to the present invention, displacement of the second light source unit with respect to the first light source unit can be suppressed.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Best Mode for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and the description thereof will not be repeated.

[0011] First, referring to FIG. 1, the lighting system 1 of the present embodiment will be described. FIG. 1 is a perspective view showing the lighting system 1 according to the present embodiment. The lighting system 1 of the present embodiment is used, for example, as a base light or indirect lighting. Also, in the present embodiment, the lighting system 1 is used by being suspended from the ceiling surface. Alternatively, the lighting system 1 of the present embodiment is installed, for example, on the ceiling surface, wall surface, or floor surface. The ceiling surface may be an inclined ceiling surface.

[0012] As shown in FIG. 1, the lighting system 1 includes a connecting member 10, a first lighting fixture 100 including a first light source unit 120, and a second lighting fixture 200 including a second light source unit 220. The connecting member 10 connects the first light source unit 120 and the second light source unit 220. The lighting system 1 shown in FIG. 1 is in a connected state in which the connecting member 10 connects the first light source unit 120 and the second light source unit 220.

[0013] In the present embodiment, for example, in the connected state, the first lighting fixture 100 and the second lighting fixture 200 are in contact with each other. On the other hand, in the connected state, the first light source unit 120 and the second light source unit 220 are separated from each other. Specifically, in the connected state, the first light source unit 120 and the second light source unit 220 are arranged such that a gap G is provided between the first light source unit 120 and the second light source unit 220.

[0014] The first lighting fixture 100 has a substantially rectangular parallelepiped shape in the present embodiment. The first lighting fixture 100 further includes a first housing 110 and a first housing closing portion 130.

[0015] The first housing 110 has a first housing base portion 111 and a first housing wall portion 112. Specifically, the first housing 110 has one first housing base portion 111 and two first housing wall portions 112. The first housing base portion 111 extends along a first direction D1 from the first light source unit 120 toward the second light source unit 220 in the connected state. The first housing wall portion 112 extends from the first housing base portion 111 in a second direction D2 that intersects the first direction D1 in the connected state. In the present embodiment, the second direction D2 is orthogonal to the first direction D1. Further, the two first housing wall portions 112 face each other in a third direction D3 that intersects the first direction D1 and the second direction D2 in the connected state. In the present embodiment, the third direction D3 is orthogonal to the first direction D1 and the second direction D2.

[0016] The first housing 110 houses the first light source unit 120. In the present embodiment, when the first housing 110 houses the first light source unit 120, the side surface of the first light source unit 120 faces the inner surface of the first housing wall portion 112.

[0017] The surface of the first housing 110 that faces the first housing base portion 111 is open. That is, the first housing 110 is open in the second direction D2 in the connected state. That is, the first housing 110 has an opening portion 110c that faces the first housing base portion 111.

[0018] Of the longitudinal ends of the first housing 110, the first end 110a is adjacent to the second lighting fixture 200 in the connected state. On the other hand, of the longitudinal ends of the first housing 110, the second end 110b is an end on the side farther from the second lighting fixture 200 than the first end 110a in the connected state. The first end 110a and the second end 110b are open (see FIG. 2).

[0019] The first housing closing portion 130 is, for example, an end cap. The first housing closing portion 130 is attached to the second end 110b and closes the open second end 110b (see FIG. 2). The first housing closing portion 130 preferably has light-shielding properties.

[0020] The first light source unit 120 emits light. The light emitted by the first light source unit 120 is emitted from the opening 110c of the first housing 110. The first light source unit 120 includes a first light source cover 121 and a first light source side engaging portion 190.

[0021] The first light source cover 121 is made of, for example, resin. The first light source cover 121 has an opposing surface 121e that faces the opening 110c when the first light source unit 120 is housed in the first housing 110.

[0022] In the present embodiment, the first light source unit 120 includes two first light source side engaging portions 190. Hereinafter, among the two first light source side engaging portions 190, the first light source side engaging portion 190 located on the first end portion 110a side of the first housing 110 in the connected state may be referred to as the first light source side engaging portion 190a. Also, among the two first light source side engaging portions 190, the first light source side engaging portion 190 located on the second end portion 110b side of the first housing 110 in the connected state may be referred to as the first light source side engaging portion 190b.

[0023] The second lighting fixture 200 further includes a second housing 210 and a second housing closing portion 230. In the present embodiment, the second lighting fixture 200 has a substantially rectangular parallelepiped shape. Also, in the present embodiment, the second lighting fixture 200 and the first lighting fixture 100 are adjacent to each other in the first direction D1 in the connected state.

[0024] The second housing 210 has a second housing base portion 211 and a second housing wall portion 212. Specifically, the second housing 210 has one second housing base portion 211 and two second housing wall portions 212. The second housing base portion 211 extends along the first direction D1 in the connected state. The second housing wall portion 212 extends from the second housing base portion 211 in the second direction D2. Also, the two second housing wall portions 212 face each other in the third direction D3.

[0025] The second housing 210 houses the second light source unit 220. In the present embodiment, when the second housing 210 houses the second light source unit 220, the side surface of the second light source unit 220 faces the inner surface of the second housing wall portion 212.

[0026] The surface of the second housing 210 that faces the second housing base portion 211 is open. That is, the second housing 210 is open in the second direction D2 in the connected state. That is, the second housing 210 has an opening portion 210c that faces the second housing base portion 211.

[0027] Of the longitudinal ends of the second housing 210, the second end 210b is adjacent to the first lighting fixture 100 in the connected state. That is, in the connected state, the second end 210b and the first end 110a of the first housing 110 are adjacent to each other. On the other hand, of the longitudinal ends of the second housing 210, the first end 210a is an end on the side farther from the first lighting fixture 100 than the second end 210b in the connected state. Similar to the first housing 110, the first end 210a and the second end 210b of the second housing 210 are open. In the connected state, the second end 210b and the first end 110a are, for example, in contact. That is, the first housing 110 and the second housing 210 are, for example, in contact.

[0028] The second housing closing portion 230 is, for example, an end cap. Similar to the first housing closing portion 130, the second housing closing portion 230 is attached to the first end 210a and closes the open first end 210a. The second housing closing portion 230 preferably has light-shielding properties.

[0029] The second light source unit 220 emits light. The light emitted by the second light source unit 220 is emitted from the opening portion 210c of the second housing 210. The second light source unit 220 includes a second light source cover 221 and a second light source side engaging portion 290.

[0030] The second light source cover 221 is made of, for example, resin. The second light source cover 221 has a facing surface 221e that faces the opening 210c when the second light source unit 220 is housed in the second housing 210.

[0031] The position of the facing surface 221e in the second direction D2 is substantially the same as the position of the facing surface 121e of the first light source cover 121 in the second direction D2. Also, the position of the facing surface 221e in the third direction D3 is substantially the same as the position of the facing surface 121e in the third direction D3. That is, in the present embodiment, the facing surface 121e and the facing surface 221e are arranged substantially in a straight line.

[0032] In the present embodiment, the second light source unit 220 includes two second light source side engaging portions 290. Hereinafter, among the two second light source side engaging portions 290, the second light source side engaging portion 290 located on the first end portion 210a side of the second housing 210 in the connected state may be referred to as the second light source side engaging portion 290a. Also, among the two second light source side engaging portions 290, the second light source side engaging portion 290 located on the second end portion 210b side of the second housing 210 in the connected state may be referred to as the second light source side engaging portion 290b.

[0033] The connecting member 10 is made of, for example, resin. The connecting member 10 includes a base portion 20 and at least one wall portion 30.

[0034] The base portion 20 extends along the first direction D1 in the connected state. Also, the base portion 20 straddles the first light source unit 120 and the second light source unit 220 in the connected state.

[0035] At least one wall portion 30 extends from the base portion 20 in the second direction D2. Also, the wall portion 30 includes a first engaging portion 31 and a second engaging portion 32 arranged in the first direction D1. In the present embodiment, in FIG. 1, the first engaging portion 31 is located on the left side of the second engaging portion 32.

[0036] In the connected state, the first engaging portion 31 engages with the first light source side engaging portion 190a. Also, in the connected state, the second engaging portion 32 engages with the second light source side engaging portion 290b. Therefore, movement of the first light source side engaging portion 190a and the second light source side engaging portion 290b with respect to the connecting member 10 can be restricted. As a result, displacement of the second light source unit 220 with respect to the first light source unit 120 can be suppressed. For example, it is possible to suppress the position of the second light source unit 220 from shifting in the first direction D1, the second direction D2, or the third direction D3 with respect to the position of the first light source unit 120.

[0037] By suppressing displacement between the first light source unit 120 and the second light source unit 220, the positions of the opposing surfaces 121e and 221e arranged substantially in a straight line can be maintained. Specifically, it is possible to suppress the position of the opposing surface 221e of the second light source cover 221 from shifting in the first direction D1, the second direction D2, or the third direction D3 with respect to the position of the opposing surface 121e of the first light source cover 121. As a result, in the connected state, the aesthetics of the lighting system 1 when the first light source unit 120 and the second light source unit 220 emit light can be improved.

[0038] In addition, compared to the case where the connecting member 10 does not connect the first light source unit 120 and the second light source unit 220, it is possible to suppress the direction in which the second light source unit 220 extends from tilting with respect to the direction in which the first light source unit 120 extends. That is, it is possible to suppress the direction in which the second light source cover 221 extends from tilting with respect to the direction in which the first light source cover 121 extends. Specifically, starting from the boundary portion between the first end portion 110a of the first housing 110 and the second end portion 210b of the second housing 210, it is possible to suppress the second light source cover 221 from tilting to the right side, the left side, the upper side, or the lower side in the drawing. Also, it is possible to suppress at least one of the direction in which the first light source unit 120 extends and the direction in which the second light source unit 220 extends from tilting with respect to the first direction D1.

[0039] In this embodiment, each of the first housing 110 and the second housing 210 has light-shielding properties. Therefore, it is possible to prevent the light emitted by at least one of the first light source unit 120 and the second light source unit 220 from being emitted through the first housing wall portion 112 and the second housing wall portion 212. As a result, the light emitted from the opening portion 110c can be made prominent.

[0040] Here, in this embodiment, it is preferable that each of the inner surface of the first housing 110 and the inner surface of the second housing 210 is configured to reflect the light emitted by at least one of the first light source unit 120 and the second light source unit 220. The configuration for reflecting light is, for example, a configuration having a color that easily reflects light. Specifically, the configuration for reflecting light is, for example, a configuration formed of a white material, a configuration applied with white paint, or a mirror surface configuration. The white material is, for example, resin. Therefore, the light efficiency of the lighting system 1 can be improved as compared with the case where each of the inner surface of the first housing and the inner surface of the second housing is a configuration that hardly reflects light. The configuration that hardly reflects light is, for example, a configuration having a color that easily absorbs light. Specifically, the configuration that hardly reflects light is, for example, a configuration formed of a black material or a configuration applied with black paint.

[0041] Hereinafter, in this embodiment, for the ease of understanding the invention, in the connected state, the side where the first light source unit 120 is arranged is defined as the "left side", and the side where the second light source unit 220 is arranged is defined as the "right side", thereby defining the left - right direction. That is, in this embodiment, the direction from the left side to the right side corresponds to the first direction D1. Also, in the connected state, the side where the proximal end side of the wall portion 30 of the connecting member 10 is arranged is defined as the "upper side", and the side where the distal end of the wall portion 30 is arranged is defined as the "lower side", thereby defining the up - down direction. That is, in this embodiment, the direction from the upper side to the lower side corresponds to the second direction D2. Further, looking at the lighting system 1 with the first light source unit 120 arranged on the left side and the second light source unit 220 arranged on the right side, the front side is defined as the "front side", and the opposite side is defined as the "rear side", thereby defining the front - rear direction. That is, in this embodiment, the front - rear direction corresponds to the third direction D3. That is, FIG. 1 shows the lighting system 1 viewed from the lower left - front. However, these orientations do not limit the orientations during the manufacturing, construction, and use of the lighting system 1 of the present invention.

[0042] Subsequently, referring to FIG. 2, the first lighting fixture 100 of this embodiment will be described. FIG. 2 is an exploded perspective view of the first lighting fixture 100 according to this embodiment. Specifically, FIG. 2 shows the first lighting fixture 100 viewed from the lower left - front. Since the configuration of the first lighting fixture 100 is the same as that of the second lighting fixture 200, the description of the second lighting fixture 200 will be omitted.

[0043] As shown in FIG. 2, the first housing 110 has a substantially U - shaped configuration in side view. Specifically, the first housing 110 has a substantially U - shaped configuration with angular corners in side view.

[0044] The first light source unit 120 further includes a light - emitting portion 122, a frame member 170, a power supply device 140, two mounting brackets 150, a first terminal block 160a, a second terminal block 160b, a first cover closing member 180a, a second cover closing member 180b, a first pressing member 185a, and a second pressing member 185b.

[0045] The light emitting unit 122 includes a wiring board 122a and a plurality of light sources 122b.

[0046] In the connected state, the wiring board 122a has a substantially rectangular shape that is long in the first direction D1. Also, in the present embodiment, the wiring board 122a has a substantially flat plate shape.

[0047] The light source 122b emits light. The light source 122b of the present embodiment has an LED (Light Emitting Diode) element as a light emitting element. More specifically, the light source 122b is, for example, an SMD (surface mount device) or a COB (chip on board).

[0048] The light source 122b is mounted on the wiring board 122a. Specifically, the light source 122b is mounted on the wiring board 122a such that the light emitting surface of the light emitting element faces the inner surface of the first light source cover 121. Wiring for supplying power to the light source 122b is formed on the wiring board 122a.

[0049] In the present embodiment, the plurality of light sources 122b are arranged in a row along the first direction D1 in the connected state. However, the arrangement of the plurality of light sources 122b is not limited to a single row. The plurality of light sources 122b may be arranged in two or more rows along the first direction D1, or may be arranged in a staggered pattern.

[0050] The frame member 170 is a plate-like member and has a substantially rectangular shape that is long in the first direction D1 in the connected state. The light emitting unit 122 is attached to the frame member 170. Specifically, the light emitting unit 122 is attached to the lower surface of the frame member 170. More specifically, the light emitting unit 122 is attached to the frame member 170 such that the light source 122b faces the inner surface of the opposing surface 121e of the first light source cover 121. The light emitting unit 122 may be adhered to the frame member 170 with an adhesive, for example, or may be fixed to the frame member 170 with a fastening member such as a screw.

[0051] The frame member 170 can be a member made of a metal such as aluminum. In the present embodiment, the frame member 170 is made of a metal and functions as a heat sink for the light emitting part 122. The frame member 170 is formed, for example, by an extrusion molding method. By forming the frame member 170 by the extrusion molding method, the cross-sectional shape of the frame member 170 becomes constant from one end to the other end in the longitudinal direction of the frame member 170.

[0052] The first light source cover 121 covers the light emitting part 122. More specifically, the first light source cover 121 is attached to the frame member 170 and covers the light emitting part 122 from below. The first light source cover 121 is, for example, a shade or a diffusion cover. The first light source cover 121 is transparent or translucent and transmits the light emitted from the light emitting part 122. The first light source cover 121 is made of, for example, an opalescent translucent material.

[0053] Specifically, the first light source cover 121 is a substantially rectangular parallelepiped-shaped cylinder that is long in the first direction D1 in the connected state. Further, the first light source cover 121 has a first cover opening end 121a located on the first end portion 110a side of the first housing 110 and a second cover opening end 121b located on the second end portion 110b side of the first housing 110. The first cover opening end 121a and the second cover opening end 121b are open.

[0054] When the first light source cover 121 is a diffusion cover, the first light source cover 121 may be formed, for example, by molding a resin containing a light diffusion material. Alternatively, the first light source cover 121 may be formed by performing a light diffusion treatment on the surface of a resin molded product molded from a transparent resin. Here, the light diffusion treatment includes, for example, a micro unevenness formation treatment and a translucent white painting treatment. The micro unevenness formation treatment is a treatment for forming minute unevenness on the surface of a resin molded product. The translucent white painting treatment is a treatment for painting the surface of a resin molded product with a translucent milky white paint.

[0055] In the present embodiment, the first light source cover 121 includes a main body portion 121m and two engaging portions 121f. The main body portion 121m is joined to each of the two engaging portions 121f. The two engaging portions 121f respectively project in a direction opposite to the second direction D2 from a pair of end portions 121c in the direction opposite to the second direction D2 of the main body portion 121m. The first light source cover 121 is attached to the frame member 170 by engaging the edge portions of the frame member 170 with the two engaging portions 121f respectively.

[0056] The first cover closing member 180a closes the first cover opening end 121a. The first cover closing member 180a is made of, for example, a synthetic resin. The second cover closing member 180b closes the second cover opening end 121b. The second cover closing member 180b is made of, for example, a synthetic resin.

[0057] The first cover closing member 180a and the second cover closing member 180b may be the same color as the first light source cover 121. The first cover closing member 180a and the second cover closing member 180b are made of, for example, an opalescent translucent material. Since the first cover closing member 180a and the second cover closing member 180b are the same color as the first light source cover 121, a sense of unity among the first light source cover 121, the first cover closing member 180a, and the second cover closing member 180b can be obtained.

[0058] When the end portion on the side of the first cover opening end 121a of the first light source cover 121 extends in the first direction D1, the first cover closing member 180a is pressed in the first direction D1. Similarly, when the end portion on the side of the second cover opening end 121b of the first light source cover 121 extends in the fourth direction D4 opposite to the first direction D1, the second cover closing member 180b is pressed in the fourth direction D4.

[0059] The first cover closing member 180a is attached to the frame member 170 so as to be slidable in the first direction D1 and the fourth direction D4 (left - right direction). Therefore, when the first light source cover 121 thermally expands and the first cover closing member 180a is pressed in the first direction D1, the first cover closing member 180a moves in the first direction D1. In other words, the position of the first cover closing member 180a is displaced in the first direction D1.

[0060] Similarly, the second cover closing member 180b is attached to the frame member 170 so as to be slidable in the first direction D1 and the fourth direction D4. Therefore, when the first light source cover 121 thermally expands and the second cover closing member 180b is pressed in the fourth direction D4, the second cover closing member 180b moves in the fourth direction D4. In other words, the position of the second cover closing member 180b is displaced in the fourth direction D4.

[0061] The first pressing member 185a has elasticity. The first pressing member 185a applies a pressing force in the fourth direction D4 to the first cover closing member 180a in response to the deformation of the first light source cover 121 in the first direction D1. Specifically, when the first light source cover 121 thermally expands and the first cover closing member 180a moves in the first direction D1, the first pressing member 185a undergoes compressive deformation. Specifically, the first pressing member 185a elastically deforms. Therefore, the first pressing member 185a tries to return to its original shape. As a result, a pressing force in the fourth direction D4 is applied to the first cover closing member 180a by the force of the first pressing member 185a trying to return to its original shape.

[0062] Similarly, the second pressing member 185b has elasticity. The second pressing member 185b applies a pressing force in the first direction D1 to the second cover closing member 180b in response to the deformation of the first light source cover 121 in the fourth direction D4. Specifically, when the first light source cover 121 thermally expands and the second cover closing member 180b moves in the fourth direction D4, the second pressing member 185b undergoes compressive deformation. Specifically, the second pressing member 185b elastically deforms. Therefore, the second pressing member 185b tries to return to its original shape. As a result, a pressing force in the first direction D1 is applied to the second cover closing member 180b by the force of the second pressing member 185b trying to return to its original shape.

[0063] The first light source side engaging portion 190a restricts the movement of the first pressing member 185a in the first direction D1 when the first light source cover 121 thermally expands. Therefore, according to the present embodiment, when the first light source cover 121 thermally expands, the first pressing member 185a can be more reliably elastically deformed.

[0064] The first light source side engaging portion 190a of the present embodiment includes a first opposing member 191a and a first fastening member 192a. The first opposing member 191a faces the first pressing member 185a. Specifically, the first opposing member 191a is disposed closer to the first cover closing member 180a than the first pressing member 185a and faces the first pressing member 185a. The first fastening member 192a is fastened to the frame member 170 to fix the first opposing member 191a. The first fastening member 192a is, for example, a screw. By fixing the first opposing member 191a to the frame member 170, the movement of the first pressing member 185a in the first direction D1 can be more reliably restricted.

[0065] Similarly, the first light source side engaging portion 190b restricts the movement of the second pressing member 185b in the fourth direction D4 when the first light source cover 121 thermally expands. Therefore, according to the present embodiment, when the first light source cover 121 thermally expands, the second pressing member 185b can be more reliably elastically deformed.

[0066] The first light source side engaging portion 190b of the present embodiment includes a first opposing member 191b and a first fastening member 192b. The first opposing member 191b faces the second pressing member 185b. Specifically, the first opposing member 191b is disposed closer to the second cover closing member 180b than the second pressing member 185b and faces the second pressing member 185b. The first fastening member 192b is fastened to the frame member 170 to fix the first opposing member 191b. The first fastening member 192b is, for example, a screw. By fixing the first opposing member 191b to the frame member 170, the movement of the second pressing member 185b in the fourth direction D4 can be more reliably restricted.

[0067] The power supply device 140, the first terminal block 160a, and the second terminal block 160b are fixed to the frame member 170. More specifically, the power supply device 140, the first terminal block 160a, and the second terminal block 160b are fixed to the upper surface of the frame member 170. When the first light source unit 120 is housed in the first housing 110, the first terminal block 160a is closer to the first end portion 110a of the first housing 110 than the second terminal block 160b. Also, when the first light source unit 120 is housed in the first housing 110, the second terminal block 160b is closer to the second end portion 110b of the first housing 110 than the first terminal block 160a.

[0068] In the present embodiment, one end of an external power line (not shown) drawn from the outside of the lighting system 1 into the first lighting fixture 100 is connected to one side of the second terminal block 160b. Also, one end of an internal power line (not shown) connecting the second terminal block 160b and the power supply device 140 and one end of an internal power line PL1 (see FIG. 6) connecting the second terminal block 160b and the first terminal block 160a are connected to the other side of the second terminal block 160b.

[0069] The internal power line (not shown) connecting the second terminal block 160b and the power supply device 140 transmits the AC voltage transmitted by the external power line to the power supply device 140. The power supply device 140 generates power for causing the light source 122b to emit light from the AC voltage. The power supply device 140 of the present embodiment generates, for example, a DC voltage for causing an LED element to emit light from the AC voltage.

[0070] The internal power line PL1 connecting the second terminal block 160b and the first terminal block 160a is drawn into one side of the first terminal block 160a and transmits the AC voltage transmitted by the external power line to the first terminal block 160a.

[0071] On the other side of the first terminal block 160a, an internal power line PL2 (see FIG. 6) that connects the first terminal block 160a and the second terminal block 260b of the second lighting fixture 200 is connected. The internal power line PL2 is drawn into one side of the second terminal block 260b of the second lighting fixture 200, and transmits an alternating voltage that transmits the external power line to the second terminal block 260b of the second lighting fixture 200. On the other side of the second terminal block 260b, an internal power line PL3 (see FIG. 6) that connects the second terminal block 260b and a power supply device (not shown) of the second lighting fixture 200 is connected. The internal power line PL3 transmits an alternating voltage that transmits the external power line to the power supply device of the second lighting fixture 200. Note that the internal power line PL2 is an example of an "electric wire".

[0072] For example, the first light source unit 120 and the second light source unit 220 are arranged side by side in the first direction D1. After the internal power line PL2 is drawn into the first terminal block 160a and the second terminal block 260b, the first engaging portion 31 of the connecting member 10 is engaged with the first light source side engaging portion 190a and the second engaging portion 32 is engaged with the second light source side engaging portion 290b. As a result, the connecting member 10 connects the first light source unit 120 and the second light source unit 220.

[0073] The two mounting brackets 150 are fixed to the frame member 170. More specifically, the two mounting brackets 150 are fixed to the upper surface of the frame member 170. The two mounting brackets 150 are members for attaching the first light source unit 120 to the first housing 110. The mounting bracket 150 has elasticity, for example. In the present embodiment, one of the two mounting brackets 150 is disposed on the left side of the power supply device 140, and the other of the two mounting brackets 150 is disposed on the right side of the power supply device 140.

[0074] According to this embodiment, the first light source unit 120 is attached to the first housing 110 by the elastic force of the two mounting brackets 150. Similarly, the second light source unit 220 is attached to the second housing 210 by two mounting brackets (not shown). Therefore, the first light source unit 120 is detachable from the first housing 110, and the second light source unit 220 is detachable from the second housing 210. For example, after the connecting member 10 connects the first light source unit 120 and the second light source unit 220, the first light source unit 120 and the second light source unit 220 are inserted into the first housing 110 and the second housing 210 from the opening portion 110c and the opening portion 210c. As a result, the first light source unit 120 is mounted on the first housing 110, and the second light source unit 220 is mounted on the second housing 210.

[0075] Next, with reference to FIG. 3, the connecting member 10 will be described in detail. FIG. 3 is a perspective view of the connecting member 10 according to this embodiment. Specifically, FIG. 3 shows the connecting member 10 as viewed from the lower front left.

[0076] As shown in FIG. 3, in this embodiment, the connecting member 10 includes two wall portions 30. Hereinafter, among the two wall portions 30, the wall portion 30 located on the front side may be referred to as the wall portion 30a. Also, among the two wall portions 30, the wall portion 30 located on the rear side may be referred to as the wall portion 30b. Since the configuration of the wall portion 30a is the same as that of the wall portion 30b, the description of the wall portion 30b will be omitted as appropriate.

[0077] The two wall portions 30 face each other in the third direction D3. That is, the wall portion 30a and the wall portion 30b face each other in the third direction D3. Therefore, in the connected state, it is possible to suppress the displacement of the position of the second light source unit 220 with respect to the position of the first light source unit 120 on both the one side (front side) and the other side (rear side) of the first light source unit 120 and the second light source unit 220.

[0078] In the present embodiment, the first engaging portion 31 included in the wall portion 30a and the first engaging portion 31 included in the wall portion 30b face each other in the third direction D3. Also, the second engaging portion 32 included in the wall portion 30a and the second engaging portion 32 included in the wall portion 30b face each other in the third direction D3. Hereinafter, the first engaging portion 31 included in the wall portion 30a may be described as the first engaging portion 31a, and the first engaging portion 31 included in the wall portion 30b may be described as the first engaging portion 31b. Also, the second engaging portion 32 included in the wall portion 30a may be described as the second engaging portion 32a, and the second engaging portion 32 included in the wall portion 30b may be described as the second engaging portion 32b.

[0079] In the present embodiment, the first engaging portion 31 includes a first inclined portion 311, a second inclined portion 312, a third inclined portion 313, and a fourth inclined portion 314. Hereinafter, the first inclined portion 311 included in the wall portion 30a may be described as the first inclined portion 311a, and the first inclined portion 311 included in the wall portion 30b may be described as the first inclined portion 311b. Also, the second inclined portion 312 included in the wall portion 30a may be described as the second inclined portion 312a, and the second inclined portion 312 included in the wall portion 30b may be described as the second inclined portion 312b. Further, the third inclined portion 313 included in the wall portion 30a may be described as the third inclined portion 313a, and the third inclined portion 313 included in the wall portion 30b may be described as the third inclined portion 313b. Further, the fourth inclined portion 314 included in the wall portion 30a may be described as the fourth inclined portion 314a, and the fourth inclined portion 314 included in the wall portion 30b may be described as the fourth inclined portion 314b.

[0080] The first inclined portion 311 is inclined with respect to the first direction D1 and the second direction D2. The second inclined portion 312 is inclined with respect to the direction in which the first inclined portion 311 extends. Also, the second inclined portion 312 is inclined with respect to, for example, the first direction D1 and the second direction D2. Further, in the present embodiment, the inclination of the first inclined portion 311 with respect to the first direction D1 is, for example, smaller than the inclination of the second inclined portion 312 with respect to the first direction D1.

[0081] In the present embodiment, for example, a first end portion 311c, which is one of the two end portions of the first inclined portion 311, and a second end portion 312c, which is one of the two end portions of the second inclined portion 312, are connected. Further, a third end portion 311d, which is the other of the two end portions of the first inclined portion 311, and a fourth end portion 312d, which is the other of the two end portions of the second inclined portion 312, are separated. Therefore, when the first light source side engaging portion 190 (see FIG. 1) is inserted between the third end portion 311d and the fourth end portion 312d, the first light source side engaging portion 190 is guided by the first inclined portion 311 and the second inclined portion 312. As a result, it is easy to insert the first light source side engaging portion 190 into the first engaging portion 31. Further, it is possible to prevent the first light source side engaging portion 190 from being inserted too far in the direction opposite to the second direction D2.

[0082] The third inclined portion 313 extends from the third end portion 311d in a direction away from the base portion 20. Further, the third inclined portion 313 extends from the third end portion 311d to the tip 30s of the wall portion 30. That is, the tip 313e of the third inclined portion 313 is located at the tip 30s of the wall portion 30.

[0083] The fourth inclined portion 314 extends from the fourth end portion 312d in a direction away from the base portion 20. Further, the fourth inclined portion 314 extends from the fourth end portion 312d to the tip 30s of the wall portion 30. That is, the tip 314e of the fourth inclined portion 314 is located at the tip 30s of the wall portion 30.

[0084] Further, in the present embodiment, the second engaging portion 32 includes a first inclined portion 321, a second inclined portion 322, a third inclined portion 323, and a fourth inclined portion 324. Hereinafter, the first inclined portion 321 included in the wall portion 30a may be referred to as the first inclined portion 321a, and the first inclined portion 321 included in the wall portion 30b may be referred to as the first inclined portion 321b. Also, the second inclined portion 322 included in the wall portion 30a may be referred to as the second inclined portion 322a, and the second inclined portion 322 included in the wall portion 30b may be referred to as the second inclined portion 322b. Furthermore, the third inclined portion 323 included in the wall portion 30a may be referred to as the third inclined portion 323a, and the third inclined portion 323 included in the wall portion 30b may be referred to as the third inclined portion 323b. Furthermore, the fourth inclined portion 324 included in the wall portion 30a may be referred to as the fourth inclined portion 324a, and the fourth inclined portion 324 included in the wall portion 30b may be referred to as the fourth inclined portion 324b.

[0085] The first inclined portion 321 is inclined with respect to the first direction D1 and the second direction D2. The second inclined portion 322 is inclined with respect to the extending direction of the first inclined portion 321. Also, in the present embodiment, the second inclined portion 322 is inclined with respect to the first direction D1 and the second direction D2. Furthermore, in the present embodiment, the inclination of the first inclined portion 321 with respect to the first direction D1 is smaller than the inclination of the second inclined portion 322 with respect to the first direction D1.

[0086] In the present embodiment, for example, a first end portion 321c, which is one of the two end portions of the first inclined portion 321, and a second end portion 322c, which is one of the two end portions of the second inclined portion 322, are connected. Also, a third end portion 321d, which is the other of the two end portions of the first inclined portion 321, and a fourth end portion 322d, which is the other of the two end portions of the second inclined portion 322, are separated. Therefore, when inserting the second light source side engaging portion 290 (see FIG. 1) between the third end portion 321d and the fourth end portion 322d, the second light source side engaging portion 290 is guided by the first inclined portion 321 and the second inclined portion 322. As a result, it is easy to insert the second light source side engaging portion 290 into the second engaging portion 32. Also, it is possible to prevent the second light source side engaging portion 290 from being inserted too far in the direction opposite to the second direction D2.

[0087] The third inclined portion 323 extends from the third end portion 321d in a direction away from the base portion 20. Further, the third inclined portion 323 extends from the third end portion 321d to the tip 30s of the wall portion 30. That is, the tip 323e of the third inclined portion 323 is located at the tip 30s of the wall portion 30.

[0088] The fourth inclined portion 324 extends from the fourth end portion 322d in a direction away from the base portion 20. Further, the fourth inclined portion 324 extends from the fourth end portion 322d to the tip 30s of the wall portion 30. That is, the tip 324e of the fourth inclined portion 324 is located at the tip 30s of the wall portion 30.

[0089] The wall portion 30 further includes an intermediate portion 33 and a protruding portion 34. Hereinafter, the intermediate portion 33 included in the wall portion 30a may be described as the intermediate portion 33a, and the intermediate portion 33 included in the wall portion 30b may be described as the intermediate portion 33b. Further, the protruding portion 34 included in the wall portion 30a may be described as the protruding portion 34a, and the protruding portion 34 included in the wall portion 30b may be described as the protruding portion 34b.

[0090] In the present embodiment, the intermediate portion 33 is located between the first engaging portion 31 and the second engaging portion 32. That is, the intermediate portion 33 connects the first engaging portion 31 and the second engaging portion 32. Further, the intermediate portion 33 is located, for example, at the central portion of the wall portion 30 in the first direction D1.

[0091] Also, in the present embodiment, the protruding portion 34 protrudes from the intermediate portion 33 in the second direction D2. Specifically, in the present embodiment, the protruding portion 34 protrudes from, for example, the central portion of the intermediate portion 33 in the first direction D1 in the second direction D2.

[0092] In the present embodiment, the tip 35 of the protruding portion 34 has, for example, a flat surface. Also, in the present embodiment, the flat surface of the tip 35 is substantially parallel to the base portion 20. However, the flat surface of the tip 35 does not have to be parallel to the base portion 20. Further, the tip 35 does not have to have a flat surface. For example, the tip 35 may have a concavo-convex shape. Hereinafter, the tip 35 of the protruding portion 34a may be described as the tip 35a, and the tip 35 of the protruding portion 34b may be described as the tip 35b.

[0093] Next, with reference to FIG. 4, the connecting member 10 that connects the first light source unit 120 and the second light source unit 220 will be described. FIG. 4 is an enlarged view of the periphery of the connecting member 10 of the lighting system 1 in a connected state. Specifically, FIG. 4 shows the lighting system 1 viewed from the front.

[0094] In the present embodiment, the first engaging portion 31 has, for example, a concave shape. Also, the second engaging portion 32 has, for example, a concave shape. The first engaging portion 31 and the second engaging portion 32 are, for example, line-symmetric with respect to the center line CL passing through the center of the wall portion 30 in the first direction D1. However, the first engaging portion 31 and the second engaging portion 32 do not have to be line-symmetric with respect to the center line CL.

[0095] In the present embodiment, for example, each of the third inclined portion 313 and the fourth inclined portion 314 is inclined with respect to the second direction D2 such that the tip 313e of the third inclined portion 313 and the tip 314e of the fourth inclined portion 314 approach each other. Accordingly, it is possible to suppress the first light source side engaging portion 190 from coming out of the first engaging portion 31. As a result, the first light source side engaging portion 190 is stably supported by the third inclined portion 313 and the fourth inclined portion 314. Note that the tip 313e of the third inclined portion 313 and the tip 314e of the fourth inclined portion 314 are separated from each other.

[0096] Similarly, each of the third inclined portion 323 and the fourth inclined portion 324 is inclined with respect to the second direction D2 such that the tip 323e of the third inclined portion 323 and the tip 324e of the fourth inclined portion 324 approach each other. Accordingly, the second light source side engaging portion 290 that engages with the second engaging portion 32 is supported by the third inclined portion 323 and the fourth inclined portion 324. As a result, the second light source side engaging portion 290 and the second engaging portion 32 are stably engaged. Note that the tip 323e of the third inclined portion 323 and the tip 324e of the fourth inclined portion 324 are separated from each other.

[0097] In the present embodiment, the first light source side engaging portion 190 has a convex shape. The first opposing member 191a of the first light source side engaging portion 190 includes a first inclined portion 194a, a second inclined portion 195a, a third inclined portion 196a, and a fourth inclined portion 197a.

[0098] In this embodiment, the first inclined portion 194a is inclined with respect to the first direction D1 and the second direction D2. In the connected state, the first inclined portion 194a faces the first inclined portion 311a of the first engaging portion 31. In this embodiment, the extending direction of the first inclined portion 194a and the extending direction of the first inclined portion 311a are substantially parallel in the connected state.

[0099] Similar to the first inclined portion 194a, the second inclined portion 195a is inclined with respect to the first direction D1 and the second direction D2. In the connected state, the second inclined portion 195a faces the second inclined portion 312a of the first engaging portion 31. In this embodiment, the extending direction of the second inclined portion 195a and the extending direction of the second inclined portion 312a are substantially parallel in the connected state.

[0100] Also, similar to the first inclined portion 194a, the third inclined portion 196a is inclined with respect to the first direction D1 and the second direction D2. In the connected state, the third inclined portion 196a faces the third inclined portion 313a of the first engaging portion 31. In this embodiment, the extending direction of the third inclined portion 196a and the extending direction of the third inclined portion 313a are substantially parallel in the connected state.

[0101] Furthermore, similar to the first inclined portion 194a, the fourth inclined portion 197a is inclined with respect to the first direction D1 and the second direction D2. In the connected state, the fourth inclined portion 197a faces the fourth inclined portion 314a of the first engaging portion 31. In this embodiment, the extending direction of the fourth inclined portion 197a and the extending direction of the fourth inclined portion 314a are substantially parallel in the connected state.

[0102] In this embodiment, the second light source side engaging portion 290 has the same shape as the first light source side engaging portion 190, that is, the first light source side engaging portion 190 has a convex shape. The second opposing member 291 of the second light source side engaging portion 290 includes a first inclined portion 294b, a second inclined portion 295b, a third inclined portion 296b, and a fourth inclined portion 297b. In the connected state, the first inclined portion 294b faces the first inclined portion 321 of the second engaging portion 32. Also, in the connected state, the second inclined portion 295b faces the second inclined portion 322 of the second engaging portion 32. Further, in the connected state, the third inclined portion 296b faces the third inclined portion 323 of the second engaging portion 32. Further, in the connected state, the fourth inclined portion 297b faces the fourth inclined portion 324 of the second engaging portion 32.

[0103] In this embodiment, the coefficient of thermal expansion of the connecting member 10 is smaller than the coefficient of thermal expansion of the first light source cover 121. Therefore, the first light source cover 121 is positioned by the connecting member 10 via the first light source side engaging portion 190. As a result, it is possible to effectively prevent the first light source cover 121 and the second light source cover 221 from coming into contact with each other.

[0104] Also, in this embodiment, the coefficient of thermal expansion of the connecting member 10 is smaller than the coefficient of thermal expansion of the second light source cover 221. Therefore, the second light source cover 221 is positioned by the connecting member 10 via the second light source side engaging portion 290. As a result, it is possible to more effectively prevent the first light source cover 121 and the second light source cover 221 from coming into contact with each other.

[0105] In this embodiment, the protruding portion 34 is located between the first light source cover 121 and the second light source cover 221 in the connected state. Specifically, the protruding portion 34 is located between the engaging portion 121f of the first light source cover 121 and the engaging portion 221f of the second light source cover 221. Therefore, even when the first light source cover 121 and the second light source cover 221 thermally expand, the distance between the engaging portion 121f and the engaging portion 221f can be maintained, and it is possible to suppress the contact between the main body portion 121m continuous with the engaging portion 121f and the main body portion 221m of the second light source cover 221 continuous with the engaging portion 221f. As a result, it is possible to suppress the contact between the first light source unit 120 and the second light source unit 220 and the application of mutual pressing force.

[0106] Here, at room temperature during manufacturing, the length L1 along the first direction D1 of the gap G between the first light source unit 120 and the second light source unit 220 in the connected state is, for example, 1 mm. That is, at room temperature during manufacturing, the length L1 along the first direction D1 of the gap G between the first cover closing member 180a and the second cover closing member 280b in the connected state is, for example, 1 mm.

[0107] The length of the protruding portion 34 along the second direction D2 is, for example, equal to or less than the length of the engaging portion 121f along the second direction D2. In this embodiment, the length of the protruding portion 34 along the second direction D2 is substantially the same as the length of the engaging portion 121f along the second direction D2.

[0108] In this embodiment, the tip 35 of the protruding portion 34 faces the first cover closing member 180a and the second cover closing member 280b in the second direction D2 in the connected state. Therefore, even when at least one of the first light source cover 121 and the second light source cover 221 thermally expands, a space can be secured for the first cover closing member 180a to move in the first direction D1 or the second cover closing member 280b to move in the fourth direction D4. Note that the tip 35 of the protruding portion 34 may or may not contact the first cover closing member 180a and the second cover closing member 280b in the connected state.

[0109] Next, with reference to FIGS. 5 and 6, the lighting system 1 in the connected state will be described. FIG. 5 is a perspective view showing the lighting system 1 before the first light source unit 120 and the second light source unit 220 are connected to the connecting member 10. Specifically, FIG. 5 shows the lighting system 1 as viewed obliquely from above. Note that the position of the second light source unit 220 with respect to the position of the first light source unit 120 shown in FIG. 5 is substantially the same as the position of the second light source unit 220 with respect to the position of the first light source unit 120 in the connected state. Also, in FIG. 5, for simplicity of the drawing, the internal power lines PL1, PL2, and PL3 are omitted.

[0110] As shown in FIG. 5, in the present embodiment, the first light source side engaging portion 190a has two first opposing members 191a. The two first opposing members 191a face each other in the third direction D3 (see FIG. 1). Also, in the present embodiment, the second light source side engaging portion 290b has two second opposing members 291. The two second opposing members 291 face each other in the third direction D3 (see FIG. 1).

[0111] In the connected state, the first light source side engaging portion 190a and the second light source side engaging portion 290b face each other in the first direction D1. Also, the two first opposing members 191a each face the two second opposing members 291 in the first direction D1.

[0112] FIG. 6 is a perspective view showing the lighting system 1 in a state where the first light source unit 120 and the second light source unit 220 are connected to the connecting member 10. Specifically, FIG. 6 shows the lighting system 1 as viewed obliquely from above. Note that in FIG. 6, the internal power lines PL1, PL2, and PL3 are shown.

[0113] As shown in FIG. 6, in the connected state, the first engaging portion 31a of the connecting member 10 engages with the front first opposing member 191a. Also, the second engaging portion 32a engages with the front second opposing member 291. Although not shown, in the connected state, the first engaging portion 31b engages with the rear first opposing member 191a, and the second engaging portion 32b engages with the rear second opposing member 291.

[0114] In the connected state, the base portion 20 covers the internal power line PL2 extending from the first light source unit 120 to the second light source unit 220. Specifically, it covers the internal power line PL2 extending from the first terminal block 160a included in the first light source unit 120 to the second terminal block 260b included in the second light source unit 220. Therefore, it is possible to prevent the internal power line PL2 from moving in a direction opposite to the second direction D2 (see FIG. 1).

[0115] Also, in the connected state, the internal power line PL2 is positioned between the two wall portions 30. Therefore, it is possible to prevent the internal power line PL2 from moving in the third direction D3 (see FIG. 1).

[0116] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments, and can be implemented in various aspects without departing from the gist thereof. Also, the plurality of components disclosed in the above embodiments can be modified as appropriate.

[0117] Also, the drawings schematically show each component mainly for facilitating the understanding of the invention, and the thickness, length, number, interval, etc. of each illustrated component may be different from the actual ones for convenience in drawing preparation. Also, the configuration of each component shown in the above embodiments is an example and is not particularly limited, and it goes without saying that various changes can be made without substantially departing from the effects of the present invention.

[0118] In the present embodiment, the lighting system 1 includes one connecting member 10, one first light source unit 120, and one second light source unit 220. However, the lighting system 1 may include three or more light source units. In this case, the lighting system 1 includes a number of connecting members 10 that is one less than the number of light source units. That is, in this case, the lighting system 1 includes a number of connecting members 10 that is one less than the number of lighting fixtures.

[0119] In addition, in the present embodiment, the first engaging portion 31 and the second engaging portion 32 of the connecting member 10 have a concave shape, and the first light source side engaging portion 190 and the second light source side engaging portion 290 have a convex shape. However, as long as the first engaging portion 31 engages with the first light source side engaging portion 190 and the second engaging portion 32 engages with the second light source side engaging portion 290, the first engaging portion 31 and the second engaging portion 32 may have a convex shape, and the first light source side engaging portion 190 and the second light source side engaging portion 290 may have a concave shape. Further, either one of the first engaging portion 31 and the second engaging portion 32 may have a convex shape and the other may have a concave shape. In this case, the first light source side engaging portion 190 or the second light source side engaging portion 290 corresponding to the one having the convex shape has a concave shape, and the first light source side engaging portion 190 or the second light source side engaging portion 290 corresponding to the other having the concave shape has a convex shape.

[0120] Furthermore, in the present embodiment, the first lighting fixture 100 and the second lighting fixture 200 have a substantially rectangular parallelepiped shape. However, as long as the first light source unit 120 and the second light source unit 220 are connected by the connecting member 10, at least one of the first lighting fixture 100 and the second lighting fixture 200 may have a shape different from the rectangular parallelepiped shape. For example, at least one of the first lighting fixture 100 and the second lighting fixture 200 may have a substantially cubic shape, a substantially cylindrical shape, or a substantially polygonal cylindrical shape.

[0121] The present application further discloses the following appendices. Note that the following appendices do not limit the present invention.

[0122] [Appendix 1] A connecting member that connects a first light source unit including a first light source side engaging portion and a second light source unit including a second light source side engaging portion, In a connected state in which the connecting member connects the first light source unit and the second light source unit, a base portion that extends along a first direction from the first light source unit toward the second light source unit and straddles the first light source unit and the second light source unit, At least one wall portion extending from the base portion in a second direction intersecting the first direction And comprising The wall portion includes a first engaging portion and a second engaging portion arranged in the first direction, In the connected state, the first engaging portion engages with the first light source side engaging portion, In the connected state, the second engaging portion is an engaging member that engages with the second light source side engaging portion.

[0123] [Appendix 2] Comprising two of the wall portions, The two wall portions face each other in a third direction intersecting the first direction and the second direction, and the connecting member according to Appendix 1.

[0124] [Appendix 3] The wall portion is, An intermediate portion located between the first engaging portion and the second engaging portion, And a protruding portion protruding from the intermediate portion in the second direction And further includes, In the connected state, the protruding portion is located between a first light source cover included in the first light source unit arranged along the first direction and a second light source cover included in the second light source unit, and the connecting member according to Appendix 1 or Appendix 2.

[0125] [Appendix 4] The first engaging portion is, A first inclined portion inclined with respect to the first direction, And a second inclined portion inclined with respect to the direction in which the first inclined portion extends And includes, A first end portion which is one end portion of both ends of the first inclined portion and a second end portion which is one end portion of both ends of the second inclined portion are connected, A third end portion which is the other end portion of both ends of the first inclined portion and a fourth end portion which is the other end portion of both ends of the second inclined portion are separated, and the connecting member according to any one of Appendix 1 to Appendix 3.

[0126] [Appendix 5] The first engaging portion is, A third inclined portion extending from the third end portion in a direction away from the base portion, A fourth inclined portion extending in a direction away from the base portion from the fourth end portion and including The connecting member according to supplementary note 4, wherein each of the third inclined portion and the fourth inclined portion is inclined with respect to the second direction such that the tip of the third inclined portion and the tip of the fourth inclined portion approach each other.

[0127] [Supplementary note 6] The connecting member according to any one of supplementary notes 1 to 5, wherein in the connected state, the base portion covers an electric wire extending from the first light source unit to the second light source unit.

[0128] [Supplementary note 7] The connecting member according to any one of supplementary notes 1 to 6, wherein the coefficient of thermal expansion of the connecting member is smaller than the coefficient of thermal expansion of the first light source cover of the first light source unit.

[0129] [Supplementary note 8] The connecting member according to any one of supplementary notes 1 to 7, the first light source unit, and the second light source unit A lighting system comprising.

Industrial applicability

[0130] The present invention provides a connecting member and a lighting system, and has industrial applicability.

Explanation of symbols

[0131] 1 Lighting system 10 Connecting member 20 Base portion 30 Wall portion 31 First engaging portion 311 First inclined portion 311c First end portion 311d Third end portion 312c Second end portion 312d Fourth end portion 312 Second inclined portion 313 Third inclined portion 313e tip 314 Fourth inclined part 314e tip 32 Second engaging part 33 Middle part 34 Protruding part 100 First lighting fixture 120 First light source unit 121 First light source cover 190 First light source side engaging part 200 Second lighting fixture 220 Second light source unit 221 Second light source cover 290 Second light source side engaging part D1 First direction D2 Second direction D3 Third direction PL2 Internal power line (wiring)

Claims

1. A connecting member that connects a first light source unit including a first light source side engaging portion and housed in a first housing, and a second light source unit including a second light source side engaging portion and housed in a second housing, In a connected state where the connecting member connects the first light source unit and the second light source unit, it extends along a first direction from the first light source unit toward the second light source unit, and a base portion straddling the first light source unit and the second light source unit, At least one wall portion extending in a second direction intersecting the first direction from the base portion Comprising, The wall portion includes a first engaging portion and a second engaging portion arranged in the first direction, In the connected state, the first engaging portion engages with the first light source side engaging portion to position the first light source unit in the longitudinal direction along the first direction, In the connected state, the second engaging portion engages with the second light source side engaging portion to position the second light source unit in the longitudinal direction, In the connected state, the first light source unit and the second light source unit are restricted from relative displacement in the longitudinal direction by the first engaging portion and the second engaging portion, Each of the first engaging portion and the second engaging portion includes a first engaging surface and a second engaging surface extending to the tip of the wall portion, A connecting member in which each of the first engaging surface and the second engaging surface is inclined with respect to the second direction so that the tip of the first engaging surface and the tip of the second engaging surface approach each other.

2. The connecting member according to claim 1, The first light source unit, The second light source unit, The first housing, The second housing Comprising, The first light source side engaging portion is, In the connected state, a first light source side engaging surface that faces and extends parallel to the first engaging surface of the first engaging portion, In the connected state, a second light source side engaging surface that faces and extends parallel to the second engaging surface of the first engaging portion, The second light source side engaging portion is, In the connected state, a first light source side engaging surface that faces and extends parallel to the first engaging surface of the second engaging portion, In the connected state, a second light source side engaging surface that faces and extends parallel to the second engaging surface of the second engaging portion, an illumination system.

Images