JP2019110058A - Connection device, light source unit, and lighting equipment - Google Patents

Abstract

To attain improvement in connection reliability between two substrates.SOLUTION: A connection device 9 comprises a first-substrate-side connector 91, a second-substrate-side connector 92, a coupling member 90, a first connector part 93 and a second connector part 94. The first-substrate-side connector 91 is disposed closer to an edge 411 of a first substrate 41A. The second-substrate-side connector 92 is disposed closer to an edge 412 of a second substrate 41B. The first connector part 93 is provided in a first end 90A of the coupling member 90 and connected to the first-substrate-side connector 91. The second connector part 94 is provided in a second end 90B of the coupling member 90 and connected to the second-substrate-side connector 92. The coupling member 90 includes at least one bent portion 901 in a bent shape to protrude in a direction away from a virtual straight line L1 connecting the first connector part 93 and the second connector part 94.SELECTED DRAWING: Figure 3

Description

  The present invention generally relates to a connection device, a light source unit, and a lighting fixture, and more particularly, to a connection device for electrically connecting two adjacent substrates, a light source unit including the connection device, and the light source unit. It relates to lighting equipment.

  As a prior art example, the LED lighting apparatus of patent document 1 is illustrated. This LED lighting device is closely attached to the outside of the semi-cylindrical casing, the semicircular translucent cover, and the flat plate portion of the casing, and a plurality of LED chips are spaced along the longitudinal direction by a predetermined distance. And a long LED mounting substrate mounted on the A power supply substrate for supplying current to the LED chip mounted on the LED mounting substrate and an insulating case for housing the power supply substrate are housed in the hollow portion of the housing.

  Moreover, in patent document 1, what attached three LED mounting boards in linear form to one long housing | casing as an example is described. In three LED mounting boards, two adjacent LED mounting boards are connected by a pair of jumper wires. Therefore, a DC voltage is supplied from one of two adjacent LED mounting boards to the other via a pair of jumper wires, and a current is supplied to a plurality of LED chips and resistors mounted on each LED mounting board. Be washed away.

JP, 2011-28946, A

  By the way, such LED lighting devices (lighting fixtures) may be required to have relatively high environmental resistance. The environmental resistance is, for example, resistance to vibration, shock, and temperature change. If the LED lighting device described in Patent Document 1 is used in an environment relatively susceptible to vibration or shock, for example, a crack (solder) may occur at the connection portion connecting the jumper wire (lead wire) and the LED mounting substrate. Cracks may occur. Alternatively, if used in an environment where the ambient temperature may repeatedly change over a relatively wide range, the LED mounting substrate may repeatedly expand and contract, resulting in the occurrence of cracks as well. Therefore, depending on the application environment of the LED lighting device, simply connecting the two LED mounting boards with a jumper wire may not provide necessary and sufficient connection reliability.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a connection device, a light source unit, and a luminaire that can improve connection reliability between two substrates.

  A connecting device according to an aspect of the present invention electrically connects the conductors of a first substrate and a second substrate on which conductors for wiring are formed adjacent to each other on at least one surface of each other. The connection device includes a first substrate side connector, a second substrate side connector, a connecting member at least a part of which has conductivity, a first connector portion, and a second connector portion. The first substrate side connector is disposed on the side of the edge of the first substrate facing the edge of the second substrate. The second substrate side connector is disposed on the side of the edge of the second substrate. The first connector portion is provided at a first end of the connection member and connected to the first substrate side connector. The second connector portion is provided at a second end of the connection member opposite to the first end, and is connected to the second substrate side connector. The second connector portion is electrically connected to the first connector portion through the connection member. The connection member has at least one curved portion having a curved shape that is convex in a direction away from a virtual straight line connecting the first connector portion and the second connector portion.

  A light source unit according to an aspect of the present invention includes the connection device described above, the first substrate and the second substrate, one or more first solid light sources mounted on the first substrate, and the second substrate. And one or more second solid-state light sources implemented in

  A lighting fixture according to an aspect of the present invention includes the light source unit described above, and a fixture body that holds the light source unit.

  The present invention has the advantage that connection reliability between two substrates can be improved.

FIG. 1 is an exploded perspective view of a lighting apparatus according to an embodiment. FIG. 2 is an exploded perspective view of a light source unit according to an embodiment. FIG. 3A is a plan view of a connection device according to an embodiment, and FIG. 3B is a perspective view of an essential part of the connection device. FIG. 4 is a side view of Modification 1 of the connection device of the above. FIG. 5 is a plan view of Modification 2 of the connection device in the above. FIG. 6 is a plan view of Modification 3 of the connection device in the above. FIG. 7 is a plan view of Modification 4 of the connection device in the above. FIG. 8 is a perspective view of Modification 5 of the connection device in the above. FIG. 9 is an exploded perspective view of Modification 6 of the connection device in the above.

(1) Overview The following embodiment is only one of various embodiments of the present invention. The following embodiments can be variously modified according to the design and the like as long as the object of the present invention can be achieved. Further, FIGS. 1 to 9 described in the following embodiments are schematic views, and the ratio of the size and thickness of each component in FIGS. 1 to 9 necessarily reflects the actual dimensional ratio. Not necessarily.

  Also, in the following, the directions of top, bottom, left, right, front and back of the connection device 9, light source unit 3 and lighting fixture 1 of the present embodiment are defined using the top, bottom, left, right, front and rear arrows shown in FIGS. To explain. These arrows are described merely for the purpose of assisting the explanation, and do not have an entity. Moreover, these directions are not the meaning which limits the use direction of the connection apparatus 9, the light source unit 3, and the lighting fixture 1. FIG.

  The connection device 9 of the present embodiment includes two printed wiring boards (a first substrate 41A and a second substrate 41B) adjacent to each other and on which at least one surface of each of the wiring conductors 46 and 47 (see FIG. 3A) is formed. ) Are electrically connected to each other. In the following, as an example, it is assumed that a plurality of first light emitting diodes (hereinafter, referred to as first LEDs (Light Emitting Diodes)) 40A, which are a plurality of first solid state light sources, are mounted on the first substrate 41A. In addition, it is assumed that a plurality of second light emitting diodes (hereinafter, referred to as second LEDs) 40B, which are a plurality of second solid light sources, are mounted on the second substrate 41B. Then, it is assumed that the connection device 9 is applied to the light source unit 3 and the lighting fixture 1.

  However, the solid-state light source mounted on each of the first substrate 41A and the second substrate 41B is not limited to the light emitting diode, and may be, for example, an organic EL (Electro-Luminescence) element or the like. Further, the number of solid state light sources mounted on each of the first substrate 41A and the second substrate 41B is not particularly limited. Moreover, the mounted components mounted on each of the first substrate 41A and the second substrate 41B are not limited to solid light sources. On each of the first substrate 41A and the second substrate 41B, in addition to the light source, or in place of the light source, for example, circuit components constituting a power supply circuit may be mounted.

  As shown in FIG. 3A, the connection device 9 according to the present embodiment includes a first substrate connector 91, a second substrate connector 92, a connecting member 90 at least a portion of which has conductivity, and a first connector portion 93. And a second connector portion 94.

  The first substrate connector 91 is disposed on the side of the edge 411 of the first substrate 41A facing the edge 412 of the second substrate 41B. The second substrate connector 92 is disposed on the side of the edge 412 of the second substrate 41B. The first connector portion 93 is provided at the first end 90 </ b> A of the connecting member 90 and is connected to the first substrate connector 91. The second connector portion 94 is provided at the second end 90 B opposite to the first end 90 A of the connecting member 90, and is connected to the second substrate connector 92. The second connector portion 94 is electrically connected to the first connector portion 93 via the connecting member 90.

  The connecting member 90 includes at least one curved portion 901 having a curved shape that is convex in the direction away from the virtual straight line L1 connecting the first connector portion 93 and the second connector portion 94. . In addition, straight line L1 said here does not have an entity.

  According to this configuration, the connecting member 90 has the curved portion 901. Therefore, even if the first substrate 41A, the second substrate 41B, and the like are deformed due to, for example, vibration or shock, or the ambient temperature changes, the stress can be absorbed by the curved portion 901. The "deformation" referred to here includes expansion and contraction due to temperature changes of the first substrate 41A, the second substrate 41B, and the like. In addition, “stress” means that the two substrates 41, the substrate side connectors 91 and 92, the connector portions 93 and 94, and their connecting portions (for example, the first substrate 41A and the first substrate side connector 91 are soldered to each other) Part) is the stress applied to it. Therefore, the connection reliability between the two substrates 41 can be improved.

(2) Details (2.1) Overall Configuration Hereinafter, the overall configuration of the luminaire 1 to which the connection device 9 of the present embodiment is applied will be described in detail. The lighting fixture 1 has a light source unit 3 and a fixture body 2 for holding the light source unit 3 as shown in FIG. In the following description, the case where the lighting fixture 1 is installed in the wall which is construction materials, such as a building, as an example is assumed. However, the construction material in which the lighting fixture 1 is installed is not limited to a wall, and the lighting fixture 1 may be installed in construction materials other than walls, such as a ceiling and a floor. Moreover, the connection apparatus 9 may be applied to the lighting fixture installed inside, such as a refrigerated showcase, other than the lighting fixture installed in construction materials, such as a building, for example.

(2.2) Light Source Unit As shown in FIG. 2, the light source unit 3 includes the connection device 9, the two LED modules 4, the lighting device 5, the housing 6, the cover 7, and the two end members 8. And have.

(2.2.1) LED Module The two LED modules 4 are arranged side by side along the left-right direction. Hereinafter, the LED module 4 on the left side among the two LED modules 4 may be referred to as a first LED module 4A, and the LED module 4 on the right side may be referred to as a second LED module 4B.

  The first LED module 4A includes a plurality of LEDs 40 (first LEDs 40A), a substrate 41 (first substrate 41A) on which a plurality of first LEDs 40A are mounted on the front surface, a pair of receptacle connectors 42, a pair of electric wires 43, have. The pair of receptacle connectors 42 are mounted on the front surface of the first substrate 41A. The second LED module 4B includes a plurality of LEDs 40 (second LEDs 40B) and a substrate 41 (second substrate 41B) on which the plurality of second LEDs 40B are mounted on the front surface.

  Each substrate 41 is formed of, for example, a resin insulating substrate such as a glass cloth base epoxy resin substrate in the form of a long rectangular flat plate whose longitudinal direction is the left and right direction. The first substrate 41A and the second substrate 41B are disposed adjacent to each other. The edge (right edge) 411 of the first substrate 41A faces the edge (left edge) 412 of the second substrate 41B (see FIG. 3A).

  Here, as an example, the dimensions of the two substrates 41 in the longitudinal direction are different, and the dimension in the longitudinal direction of the first substrate 41A is longer than the dimension in the longitudinal direction of the second substrate 41B. However, the dimensional relationship in the longitudinal direction of the two substrates 41 is not particularly limited, and may be identical to each other, or the dimensional relationship between long and short may be reversed.

  Each LED 40 is, for example, a white LED for illumination. The plurality of first LEDs 40A are mounted in a line at equal intervals along the longitudinal direction (left and right direction) of the first substrate 41A at the center of the first substrate 41A in the lateral direction (vertical direction) See Figure 2). Also, the plurality of second LEDs 40B are mounted in a line at equal intervals along the longitudinal direction (left and right direction) of the second substrate 41B at the center of the second substrate 41B in the short direction (vertical direction). (See Figure 2).

  On the front surface of the first substrate 41A, a pair of receptacle connectors 42 and a pair of first substrate connectors 91 (see FIG. 3A) of the connection device 9 described later are mounted. The pair of receptacle connectors 42 are vertically aligned on the lower side of the first LED 40A on the front surface at the center in the longitudinal direction of the first substrate 41A. However, the pair of receptacle connectors 42 are mounted offset in the left-right direction (see FIG. 2).

  On the other hand, the pair of first substrate connectors 91 is disposed on the side of the edge (right edge) 411 on the front surface of the first substrate 41A. Specifically, the pair of first substrate connectors 91 are distributed and mounted on the upper and lower sides in the vicinity of the edge 411 of the front surface of the first substrate 41A.

  On the front surface of the second substrate 41B, a pair of second substrate connectors 92 (see FIG. 3A) of the connection device 9 described later are mounted. The pair of second substrate connectors 92 are disposed on the side of the edge (left edge) 412 on the front surface of the second substrate 41B. Specifically, the pair of second substrate connectors 92 are distributed and mounted on the upper and lower sides in the vicinity of the edge 412 of the front surface of the second substrate 41B. The first board side connector 91 and the second board side connector 92 will be described in detail in the later section “(2.5) Connecting device”.

  In the first substrate 41, three slits 44A, 44B and 44C are provided in a line in the left-right direction at the lower end portion closer to the center (rightward) than the two receptacle connectors 42 (see FIG. 2). The electric wire 43 is inserted into each of the three slits 44A to 44C.

  One of the two electric wires 43 electrically connects one receptacle connector 42 of the first LED module 4A and the plug connector 45. The other of the pair of electric wires 43 electrically connects the other receptacle connector 42 of the first LED module 4A and the plug connector 45. Here, each of the two electric wires is a coated electric wire configured by coating an insulator such as a vinyl resin on a conductor made of a single wire or a stranded wire. The surface of the insulator of each of the two wires 43 is separately colored in two different colors (for example, white and black) in order to distinguish positive and negative poles.

  The two electric wires 43 are inserted from the front to the rear in the slit 44A at the left end, and then from the rear to the front in the slit 44B at the center, and further inserted from the front to the rear in the slit 44C at the right end. The plug connectors 45 provided at the ends of the two electric wires 43 are electrically connected to an output connector 500 of the lighting device 5 described later.

(2.2.2) Lighting device The lighting device 5 responds to a power conversion circuit that converts AC power supplied from an external power supply (for example, a commercial power system) into DC power, and a control signal received from the outside. And a control circuit that controls the power conversion circuit. The power conversion circuit includes, for example, a power factor correction circuit and a step-down chopper circuit (buck converter). The control circuit is configured to, for example, adjust the DC current output from the output connector 500 by performing PWM (Pulse Width Modulation) control on the buck converter to dim the two LED modules 4. However, since the circuit configuration of such a power conversion circuit and control circuit is conventionally known, the illustration and description of the detailed circuit configuration will be omitted.

  The lighting device 5 includes a circuit board 50 (see FIG. 2). The circuit board 50 is formed in, for example, a rectangular flat plate shape. On the circuit board 50, various circuit components 58 constituting a power conversion circuit and a control circuit are mounted.

  The first terminal block 51 is mounted on the right end of the front surface of the circuit board 50. The first terminal block 51 is a terminal block having a two-pole screwless fastener. Each pole of the first terminal block 51 is electrically connected to one of the corresponding first power lines 52 of the two first power lines 52. Each conductor of the two first power supply lines 52 is electrically connected to the corresponding one of the two contacts of the first power supply connector 53.

  The second terminal block 54 is mounted on the left end of the front surface of the circuit board 50. The second terminal block 54 is a terminal block having the same two-pole screwless fastener as the first terminal block 51. Then, to each pole of the second terminal block 54, one of the corresponding second power lines 55 of the two second power lines 55 is electrically connected. Furthermore, each conductor of the two second power supply lines 55 is electrically connected to the corresponding one of the two contacts of the second power supply connector 56. Each pole of the first terminal block 51 and each pole of the second terminal block 54 are electrically connected by a conductor of the circuit board 50. Although the detailed description is omitted, the plug connector which is the first power connector 53 is the same as that of the other lighting device 1 so that the lighting device 1 is connected to the other lighting device 1 along the left and right direction. The second power supply connector 56 is configured to be connectable to a receptacle connector.

  Further, at the left end of the front surface of the circuit board 50, one output connector 500 and two control connectors 501 and 502 are mounted. The output connector 500 is electrically connected to the output terminal of the buck converter via the conductor of the circuit board 50. Then, the output connector 500 is connected to the plug connector 45 provided at the tip of the two wires 43 of the first LED module 4A.

  Further, signal cables 503 and 504 for transmitting control signals are electrically connected to the two control connectors 501 and 502, respectively. A signal cable 503 electrically connected to one control connector 501 is drawn to the left of the circuit board 50. A signal cable 504 electrically connected to the other control connector 502 is drawn to the right of the circuit board 50. A first signal connector 505 is electrically connected to the end of one of the signal cables 503. A second signal connector 506 is electrically connected to the tip of the other signal cable 504. Moreover, the receptacle connector which is the 1st signal connector 505 is comprised so that connection with the plug connector which is the 2nd signal connector 506 of another lighting fixture 1 is possible.

(2.2.3) Case, Cover, and End Member As shown in FIG. 2, the case 6 protrudes forward from the long bottom wall 60 and the upper and lower ends along the longitudinal direction of the bottom wall 60. It is formed in the shape of a horn having a pair of side walls 61. The housing 6 is an extrusion molded body of synthetic resin such as polycarbonate resin. An outer surface of each side wall 61 is formed with an inwardly recessed recess 610. Further, on each side wall 61, an engagement groove 63 in which the circuit board 50 is inserted from the left end of the housing 6 and engaged, and an engagement projection 64 in which the cover 7 is inserted from the left end of the housing 6 and engaged Is provided.

  As shown in FIG. 2, the cover 7 has a cover main body 70 having a rectangular shape when viewed from the front, and a pair of leg portions 71 projecting backward from each of a pair of long sides of the cover main body 70. ing. The cover main body 70 and the pair of leg portions 71 are integrally formed by, for example, extrusion molding of a synthetic resin such as a polycarbonate resin. The cover body 70 is curved in an arc toward the front. The cover main body 70 is configured to transmit and diffuse light emitted from the two LED modules 4 (see FIG. 2).

  The cover 7 holds the first substrate 41 </ b> A and the second substrate 41 </ b> B so as to be sandwiched between the pair of leg portions 71. That is, the first substrate 41A and the second substrate 41B are accommodated in the cover 7. The cover 7 is attached so as to be hooked to the side wall 61 of the housing 6 while holding the first substrate 41A and the second substrate 41B. That is, although the detailed description is omitted, the pair of leg portions 71 of the cover 7 has a hooking structure for hooking the first substrate 41A and the second substrate 41B on its inner side, and further, on its outer side , And an engagement structure for engaging with the engagement projection 64 of the housing 6.

  The two end members 8 have substantially the same structure as one another (see FIG. 2). Each end member 8 has a first end portion 81 formed in a substantially semicircular plate shape, a second end portion 82 formed in a substantially square flat plate shape, a first end portion 81 and a second end portion 82 And a connecting portion 83 for connecting the Each end member 8 further includes a bottom plate portion 84 and a pair of side plate portions 85. The end member 8 is formed of a molded body of synthetic resin such as polybutylene terephthalate resin.

  A second power connector 56 is attached to the second end portion 82 of the left end member 8. Further, a signal cable 503 is attached to the second end portion 82 of the left end member 8. The signal cable 503 is attached to the second end 82 in a state of penetrating the second end 82. The first power supply line 52 and the signal cable 504 are attached to the second end portion 82 of the right end member 8. The first power supply line 52 and the signal cable 504 are attached to the second end 82 in a state of penetrating the second end 82. However, tension stops are attached to the first power supply line 52 and the signal cable 504.

  The bottom plate portion 84 is formed in a rectangular flat plate shape. The bottom plate portion 84 protrudes from the side surface of the second end portion 82 to the side opposite to the connecting portion 83 (see FIG. 2). The pair of side plate portions 85 project forward from both ends in the short direction (vertical direction) on the front surface of the bottom plate portion 84. Each side plate portion 85 is formed in a rectangular flat plate shape.

  With the lighting device 5 and the cover 7 containing the LED substrate 41 housed in the housing 6, the two end members 8 are inserted from the left and right ends of the housing 6 and screwed, etc. The member 8 is attached.

(2.3) Instrument main body The instrument main body 2 is provided with the main-body part 20 and a pair of supporting member 21, as shown in FIG. The main body portion 20 is formed in a rectangular shape by a metal plate such as a zinc steel plate. The main body portion 20 includes a bottom portion 200 formed in a long rectangular flat plate shape, and a pair of side portions 201 projecting forward from both ends (upper end and lower end) along the longitudinal direction (left and right direction) of the bottom portion 200. Have.

  The bottom portion 200 includes a pair of mating portions 202 (only the right mating portion 202 is shown in the illustrated example), a pair of connecting portions 205, and a pair of mounting holes 206.

  Each mating portion 202 has three mating holes. The three engaging holes are arranged in a line along the longitudinal direction of the bottom 200.

  One connection portion 205 is provided at each of one end (left end) and the other end (right end) of the bottom portion 200 in the longitudinal direction. The left connection portion 205 is formed in a rectangular plate shape which protrudes outward (left side) from the entire range above the center of the bottom portion 200 in the lateral direction (vertical direction) at the left end of the bottom portion 200. On the other hand, the right connection portion 205 is formed at the right end of the bottom portion 200 in the shape of a rectangular flat plate projecting outward (right side) from the entire range below the center in the width direction of the bottom portion 200.

  One mounting hole 206 is provided at each of the left end and the right end of the bottom portion 200. The mounting hole 206 is a long hole. Each mounting hole 206 penetrates the bottom 200 so that the direction of the major axis coincides with the longitudinal direction of the bottom 200.

  Each side portion 201 has a pair of openings 203 and a string locking portion 208. One opening 203 is provided at the front end portion at the left end and the right end of the side portion 201. Each opening 203 is formed in a groove shape whose outer shape viewed from the vertical direction is a rectangle. Each opening 203 is disposed at substantially the same position as the mating portion 202 in the longitudinal direction of the main body 20. One cord locking portion 208 is provided at each of the right end of the upper side portion 201 and the left end of the lower side portion 201. The cord locking portion 208 is formed by punching a metal plate constituting the side portion 201.

  The support member 21 has a pair of engaging portions 210 engaged with the engaged portions 62 (see FIG. 1) provided on the side wall 61 of the housing 6, and the engaging portions 210 in contact with the outer surface of the side wall 61. And a displacement portion 211 for displacing in a separating direction (vertical direction). Further, the support member 21 engages with the spring portion 212 which presses the housing 6 in the direction in which the engagement portion 210 engages with the engaged portion 62, and the engagement portion which engages with the engagement portion 202 of the main body portion 20. And 213. Furthermore, the support member 21 has a rectangular flat plate portion 214. The pair of engaging portions 210, the pair of displacement portions 211, the spring portions 212, the engagement portions 213, and the plate portion 214 of the support member 21 are formed by punching and bending a metal plate such as a stainless steel plate. It is integrally formed.

  The pair of displacement portions 211 protrudes one by one from the upper end and the lower end of the plate portion 214, respectively. The displacement portion 211 protruding from the upper end of the plate portion 214 is displaced to bend upward, and the displacement portion 211 protruding from the lower end of the plate portion 214 is displaced to bend downward.

  The pair of engaging portions 210 is formed in a substantially U-shape as viewed in the left-right direction. Each engaging portion 210 protrudes so as to make a U-turn rearward from the tip (front end) of the corresponding displacement portion 211 of the pair of displacement portions 211.

  The spring portion 212 is formed substantially in a C shape when viewed from the front. The spring portion 212 protrudes from the end in the left-right direction of the plate portion 214 in a direction away from the plate portion 214. Both arms of the spring portion 212 are curved so as to gradually project forward as they move away from the plate portion 214. The tip end portion of the spring portion 212 connecting the arms of the spring portion 212 gently projects forward.

  The support member 21 is fixed to the main body 20 in the following procedure. The engagement portion 213 of the support member 21 is inserted into the engagement portion 202 of the main body 20 from the front. Then, the support member 21 is moved in parallel with the bottom portion 200 of the main body portion 20, whereby the movement with respect to the bottom portion 200 is restricted, and the support member 21 is fixed to the main body portion 20. In the state where the support member 21 is fixed to the main body portion 20, the engaging portion 210 and the displacement portion 211 of the support member 21 vertically face the opening portion 203 of the side portion 201 of the main body portion 20. .

(2.4) Construction Procedure of Lighting Fixture Next, a construction procedure of the lighting fixture 1 will be described.

  A worker who performs construction work first attaches the tool body 2 to a construction material (for example, a wall). The operator inserts a mounting screw such as a wood screw into the pair of mounting holes 206 of the main body 20 to screw the main body 20 to the wall.

  Subsequently, the worker inserts the housing 6 of the light source unit 3 into the main body 20 from the front. The operator bends the pair of displacement portions 211 of the support member 21 outward by pushing the engaging portions 210 of the support member 21 at the upper and lower end portions of the rear end of the housing 6.

  The worker inserts the housing 6 into the main body 20 against the spring force (pressing force) of the spring portion 212 even after the spring portion 212 of the support member 21 contacts the rear surface of the housing 6 of the light source unit 3 . Then, when the engaging portion 210 of the support member 21 reaches the recess 610 of the side wall 61, the displaced displacement portion 211 returns to the original state. Then, when the worker releases the light source unit 3, the housing 6 pressed by the spring portion 212 moves forward, and the engaging portion 210 of the support member 21 engages with the engaged portion 62 of the housing 6. Match. In this manner, the worker causes the casing 6 to be supported by the pair of support members 21 and attaches the light source unit 3 to the main body portion 20.

  As described above, the worker can attach the light source unit 3 to the tool body 2 without using a tool such as a driver. Therefore, the lighting fixture 1 can aim at shortening of the working time which an installation requires.

(2.5) Connection Device Hereinafter, the connection device 9 of the present embodiment will be described in detail.

  The connection device 9 is a conductor 46 of the first substrate 41A and the second substrate 41B, which are two printed wiring boards in which the conductors (copper foil) 46 and 47 for wiring are formed adjacent to each other and on at least one surface of each. , 47 are electrically connected to each other. That is, the conductor 46 which is a printed wiring formed on the first substrate 41A is electrically connected to the conductor 47 which is a printed wiring formed on the second substrate 41B through the connection device 9. There is. Therefore, for example, after the direct current supplied from the lighting device 5 flows through the plurality of first LEDs 40A and the like mounted on the first substrate 41A, it is delivered to the second substrate 41B via the connection device 9 , Flows through the plurality of second LEDs 40B and the like mounted on the second substrate 41B.

  As shown in FIG. 3A, the connection device 9 includes a connector 9X including a first substrate connector 91, a second substrate connector 92, a connecting member 90, a first connector portion 93, and a second connector portion 94. Have a pair. The two sets of connection bodies 9X correspond to, for example, forward and return electric paths, respectively, and are arranged at constant intervals in the vertical direction so as to maintain the insulation distance.

(2.5.1) Substrate-side connector The first substrate-side connector 91 of the two sets of connection members 9X is, as shown in FIG. 3A, the edge 411 of the first substrate 41A facing the edge 412 of the second substrate 41B. Placed on the side. Specifically, the pair of first substrate connectors 91 are distributed and mounted on the upper and lower sides in the vicinity of the edge 411 of the front surface of the first substrate 41A. The pair of first substrate connectors 91 is electrically connected to the conductor 46 on the first substrate 41A described above.

  Further, as shown in FIG. 3A, the second substrate side connectors 92 of the two sets of connection bodies 9X are disposed on the side of the edge 412 of the second substrate 41B. Specifically, the pair of second substrate connectors 92 are distributed and mounted on the upper and lower sides in the vicinity of the edge 412 of the front surface of the second substrate 41B. The pair of second substrate connectors 92 are electrically connected to the conductors 47 on the above-described second substrate 41B.

  In the present embodiment, the first substrate connector 91 and the second substrate connector 92 have the same structure. Therefore, in the following, only the first substrate connector 91 will be described with reference to FIG. 3B, and the description of the second substrate connector 92 may be omitted as appropriate.

  As shown in FIG. 3B, the first substrate connector 91 is a surface mount type female connector, and is mounted on the same surface (front surface) on which the first LED 40A in the first substrate 41A is mounted. The first substrate connector 91 is formed in a flat and substantially rectangular box shape, and the front surface thereof and the right surface facing the second substrate 41B (in the case of the second substrate connector 92, it faces the first substrate 41A) Left) is open. Further, a terminal portion (not shown) protrudes from the inner bottom surface of the first substrate connector 91. The terminal portion is electrically connected to the conductor 46 of the first substrate 41A by solder bonding or the like.

  The first substrate connector 91 has a plurality of (four in the illustrated example) recesses 910 on its inner side surface. The plurality of recessed portions 910 are configured such that a plurality of hook-shaped claw portions 930 protruding to the upper side wall and the lower side wall of the first connector portion 93 are hooked respectively. Further, the first substrate connector 91 has a groove portion 911 recessed rearward at the front end of the left side wall thereof. The groove portion 911 is a groove for releasing the protrusion 931 projecting leftward from the left side wall of the first connector portion 93. In a state in which the first connector portion 93 is connected to the corresponding first substrate connector 91, the tip end of the protrusion 931 protrudes further to the left than the groove portion 911.

  The first substrate connector 91 has a plug piece 912 projecting forward at a position on the inner bottom surface toward the left. The insertion piece 912 can be inserted into an insertion port 932 provided at the center in the vertical direction of the left end of the first connector portion 93. The insertion port 932 is located to the right of the projection 931, and penetrates the first connector portion 93 in the thickness direction (front-rear direction).

(2.5.2) Connector part The 1st connector part 93 of 2 sets of connection object 9X is a male type connector, and is formed in the flat substantially rectangular box shape. Each first connector portion 93 is provided at the first end (left end) 90A of the corresponding connecting member 90, and is removably connected to the first substrate connector 91.

  Further, the second connector portions 94 of the two sets of connection bodies 9X are male connectors, and are formed in a flat, substantially rectangular box shape. Each second connector portion 94 is provided at the second end (right end) 90B of the corresponding connection member 90, and is removably connected to the second substrate connector 92.

  In the present embodiment, the first connector portion 93 and the second connector portion 94 have the same structure. Therefore, in the following, only the first connector portion 93 will be described with reference to FIG. 3B, and the description of the second connector portion 94 may be omitted as appropriate.

  As described above, the first connector portion 93 has a plurality of hook-shaped claws 930, protrusions 931, and the insertion port 932. Further, for example, a crimp terminal (not shown) is accommodated inside the first connector portion 93, and the first end 90A of the connecting member 90 is fixed to the crimp terminal and electrically conducted to the crimp terminal. ing. The first connector portion 93 is configured to expose the tip of the crimp terminal from the rear surface, and by being fitted into the first substrate connector 91, the tip of the crimp terminal is a terminal of the first substrate connector 91. Contact with the department.

  Hereinafter, the procedure of the connection operation (insertion operation) of the first connector portion 93 to the first substrate connector 91 will be described.

  The operator causes the first connector portion 93 to face the open front surface of the first substrate connector 91 in a state where the thickness direction of the first connector portion 93 matches the thickness direction of the first substrate 41A. Then, the worker pushes the first connector portion 93 rearward toward the first substrate connector 91. Then, the plurality of claws 930 contact the upper side wall and the lower side wall of the first board side connector 91, and elastically deform the first board side connector 91 such that the upper side wall and the lower side wall are separated from each other. Then, when the plurality of claws 930 reach the plurality of recessed portions 910, they are respectively engaged with the recessed portions 910, and the upper side wall and the lower side wall of the first substrate connector 91 elastically return. At this time, the insertion piece 912 is inserted into the insertion port 932. As a result, mechanical and electrical connection between the first substrate connector 91 and the first connector portion 93 is achieved.

  When removing the first connector portion 93 from the first board side connector 91, the worker hooks the tip of the projection 931 exposed from the groove 911 and lifts the toe or the finger forward. Then, the plurality of claws 930 are sequentially removed from the recess 910 from the claws 930 on the left side, and as a result, the first connector portion 93 can be pulled out of the first substrate connector 91.

  That is, the removal direction of the first connector portion 93 with respect to the first substrate connector 91 substantially matches the thickness direction of the first substrate 41A.

(2.5.3) Connecting members The connecting members 90 of the two sets of connectors 9X each have the shape of an elongated strip generally in the left-right direction, and are partially formed in a corrugated plate shape It is done. The connecting member 90 is a member at least a part of which has conductivity. The second connector portion 94 is electrically connected to the first connector portion 93 via the connecting member 90. In the present embodiment, the connecting member 90 is, for example, a metal wire 900, and the whole has conductivity. Here, the connecting member 90 has such rigidity that it does not bend and hang down due to its own weight. That is, unlike the lead wire, the connecting member 90 has a certain directionality.

  The first connector portion 93 described above is provided at the first end 90A in the longitudinal direction (left and right direction) of each connecting member 90, and the second end 90B opposite to the first end 90A is described above. A second connector portion 94 is provided.

  Here, the thickness direction of the strip plate-like wire member 900 is in the front-rear direction in a state where the first connector portion 93 is connected to the first substrate connector 91 and the second connector portion 94 is connected to the second substrate connector 92. It is almost orthogonal.

  Then, as shown in FIG. 3A, the wire 900 of each connecting member 90 has a curved shape that is convex in the direction away from the virtual straight line L1 connecting the first connector portion 93 and the second connector portion 94. A total of four parts 901 are provided. Each curved portion 901 is configured such that the lower surface and the upper surface have a curved (round) shape.

  In the present embodiment, as an example, each wire rod 900 has two curved portions 901A that project downward from the straight line L1 so as to have a corrugated shape when viewed from the thickness direction of the substrate 41 and the straight line L1 Two curved portions 901B which are convex upward are alternately arranged. That is, from the left end of the connecting member 90, the bending portion 901A, the bending portion 901B, the bending portion 901A, and the bending portion 901B are arranged in this order.

  In addition, each wire 900 has a first extending portion 904 linearly extending in the left-right direction from the bending portion 901A at the left end to the first end 90A. Similarly, each wire 900 has a second extension 905 linearly extending in the left-right direction from the rightmost curved portion 901B to the second end 90B.

  A sufficient distance is provided between the connecting members 90 of the two sets of connectors 9X in the vertical direction. Therefore, since it is unlikely that one wire 900 deforms and approaches or contacts the other wire 900, it is not covered with the electrically insulating covering portion. However, the connecting member 90 may further have two covering portions respectively covering the circumference of each wire 900.

(2.5.4) Stress Relief Structure The lighting apparatus 1 may be required to have relatively high environmental resistance (resistance to vibration, shock, and temperature change). Here, in the present embodiment, the first substrate 41A and the second substrate 41B are electrically connected by the connection device 9. Therefore, even if the first substrate 41A, the second substrate 41B, and the like are deformed (including expansion and contraction) due to the lighting apparatus 1 being subjected to vibration or impact or ambient temperature changes, the curved portion 901 It can absorb stress. That is, the respective curved portions 901 expand and contract in the left-right direction and / or swing in the up-down direction according to the movement of the two substrates 41, whereby the two substrates 41, the substrate side connectors 91 and 92, and the connector portion 93 , 94, and the stress applied to these connections. The connection portion is a portion where the first substrate 41A and the first substrate connector 91 are soldered together, and a portion where the second substrate 41B and the second substrate connector 92 are soldered together.

  For example, when the ambient temperature rises and the substrate 41 expands and then the ambient temperature decreases and the substrate 41 shrinks to its original state, the connecting member 90 can follow the deformation of the substrate 41. As a result, it is possible to reduce the possibility of the occurrence of cracks in the above-mentioned connection portion and the like. Therefore, the connection reliability between the two substrates 41 can be improved.

  Further, since the connecting member 90 has a rigidity that does not bend and drop due to its own weight, even if the substrate 41 is deformed or displaced, the shape or position of the substrate 41 can be generated by its spring force. Gives you the power to As a result, connection reliability can be further improved.

(3) Modifications Below, some modifications are listed. Below, the embodiment mentioned above is called a "basic example." Each of the modifications described below can be combined with the above-described basic example and other modifications as appropriate. For example, the configuration of the modification 3 to be described later (the material of the wire 900 is a conductive elastomer) may be applied not only to the basic example but also to modifications 1 to 2, 4 to 6 and the like.

(3.1) Modification 1
In the connection device 9 of the basic example, the thickness direction of the strip-shaped wire 900 is substantially orthogonal to the front-rear direction (see FIG. 3B). In the connecting device 9A (Modified Example 1) shown in FIG. 4, the thickness direction of the wire 900 is substantially orthogonal to the vertical direction. That is, when viewed from the width direction (vertical direction) of the substrate 41, the wire 900 according to the present modification has two curved portions 901C that project forward from the straight line L1 and the straight line L1 so as to have a corrugated plate shape. And two curved portions 901D that are convex backward from each other are alternately arranged. That is, from the left end of the connecting member 90, the bending portion 901C, the bending portion 901D, the bending portion 901C, and the bending portion 901D are arranged in this order.

  In the first modification, even if the first substrate 41A, the second substrate 41B, etc. are deformed (including expansion and contraction), each curved portion 901 extends in the left-right direction according to the movement of the two substrates 41. Shrink and / or swing back and forth (or up and down in the basic example). Therefore, the stress applied to the two substrates 41, the substrate side connectors 91 and 92, the connector portions 93 and 94, and their connecting portions is alleviated.

(3.2) Modification 2
In the connection device 9 of the basic example, the total number of bending portions 901 is four (two bending portions 901A and two bending portions 901B). However, the total number of curved portions 901 is not particularly limited. For example, as in the connection device 9B (Modification 2) shown in FIG. 5, the total number of bending portions 901 may be, for example, two (one bending portion 901A and one bending portion 901B).

  Moreover, in the basic example and this modification, although the number of curved parts 901A and the number of curved parts 901B are the same, they may be different. For example, the number of bending portions 901A may be one and the number of bending portions 901B may be zero. Further, in the basic example and the present modification, the curved portions 901A and the curved portions 901B are alternately arranged, but may not be alternately, and one or more curved portions 901 (for example, curved portions 901A) are continuous It may be arranged.

  However, in consideration of the balance of the spring force applied to the substrate 41 etc., the center in the left-right direction is point-symmetrical to the center P1 (see FIG. 5) when viewed from the front-rear direction as in the basic example and the present modification. Is preferred.

(3.3) Modification 3
In the connection device 9 of the basic example, the material of the wire 900 of the connection member 90 is metal. However, the material of the wire 900 is not limited to metal as long as it has conductivity. For example, as in the connection device 9C (Modification 3) shown in FIG. 6, the material of the wire 900 of the connection member 90 may be a conductive elastomer. Specifically, the connecting member 90 may be formed by uniformly mixing conductive particles (carbon, metal powder or the like) with a rubber material having electrical insulation at a constant blending ratio.

  Also in the third modification, a stress relaxation structure can be provided, and as a result, connection reliability can be improved.

(3.4) Modification 4
In the connection device 9 of the basic example, the connecting member 90 has only the metal wire 900 and no covering portion for covering the wire 900 is provided. This is that in the basic example, the LED 40 is a white LED and the connector 9X is in two sets. Therefore, by dividing and arranging the two sets of connecting members 9X on both the upper and lower sides, there is a low possibility of approaching or contacting the other wire 900 even if one wire 900 is deformed. That is, the necessary and sufficient insulation distance was maintained.

  Here, the LED 40 is formed of, for example, a light emitting diode of RGB full color light emission, and multiple sets of connection bodies 9X are required (for example, four sets shown in FIG. 7) to correspond to multiple poles (for example In some cases. However, in such a case, the distance between the adjacent wires 900 is narrower than in the basic example, and when the wire 900 is deformed, it may approach or contact another wire 900, and the necessary and sufficient insulation distance It may not be maintained.

  Therefore, for example, as in the connection device 9D (variation 4) shown in FIG. 7, the connection member 90 may further include a covering portion 902 for covering a plurality of (four in the illustrated example) wire rods 900. . Each of the plurality of wire rods 900 has at least one curved portion 901. In the present modification, the total number of curved portions 901 of each wire 900 is two (one curved portion 901A and one curved portion 901B).

  The covering portion 902 has electrical insulation and covers the four wire rods 900 (900A, 900B, 900C and 900D). In the present variation, the covering portion 902 is one resin molded member formed by insert molding, for example. Therefore, compared with the case where it assembles by two different members, for example, automation of manufacture of connecting device 9 becomes easy.

  The covering portion 902 has a substantially rectangular parallelepiped shape elongated in the vertical direction. Here, the covering portion 902 has a plurality of (three in the illustrated example) intervening portions 903. Each intervening portion 903 is a portion interposed between two adjacent wire rods 900 among the plurality of wire rods 900. Therefore, in the plurality of wires 900, one of the adjacent wires 900 is deformed to approach the other, thereby reducing the situation where the insulation distance is not maintained, and the decrease in electrical insulation is suppressed. In particular, since one rectangular solid covering portion 902 covers the plurality of wire rods 900 collectively, the plurality of wire rods 900 can be integrally deformed. Therefore, compared with the case where it has a plurality of covering parts which each covers a plurality of wire rods 900, a fall of electric insulation is further controlled.

  The four wire rods 900 are arranged at equal intervals in the vertical direction. The four wires 900 are formed to pass through the covering portion 902 in the left-right direction. In the present modification, all of the curved portions 901 are exposed from the covering portion 902. Specifically, in each wire 900, the dimension in the left-right direction of the first extension portion 904 provided from the left end of the curved portion 901A to the first end 90A is longer than that in the basic example. The covering portion 902 is configured to substantially cover the first extension portion 904 of each wire 900. The curved portions 901A and 901B in each wire 900 are exposed on the right side of the covering portion 902. Therefore, it is possible to suppress that the alleviation of the stress obtained by the bending portion 901 is inhibited by the covering portion 902.

  Thus, in the present modification, the connecting member 90 has a plurality of (four in the illustrated example) wire rods 900 and a covering portion 902. Therefore, even if each of the 1st board | substrate side connector 91 and the 2nd board | substrate side connector 92 is a multipolar connector, the connection member 90 which can respond to the said multipolar connector can be provided. In addition, the decrease in insulation is suppressed.

  By the way, the covering portion 902 preferably has lower flexibility than the bending portion 901. Thus, when wire 900 is deformed due to impact, vibration, a change in ambient temperature, etc., as compared to the case where covering portion 902 has higher flexibility than curved portion 901, another wire is used. The possibility of approaching or touching 900 is further reduced.

  Instead of the first extension part 904, the lateral dimension of the second extension part 905 may be formed longer than in the basic example. In this case, the covering portion 902 is configured to cover the second extension portion 905, and the curved portions 901A and 901B in each wire rod 900 may be exposed on the left side of the covering portion 902.

  Alternatively, both the first extension 904 and the second extension 905 may be formed longer than in the basic example. In this case, the connecting member 90 may have two covering portions 902. Then, the curved portions 901 of the respective wires 900 may be disposed so as to be sandwiched in the left-right direction by the two covering portions 902.

  In addition, a part of the plurality of curved portions 901 in each wire rod 900 may be covered with the covering portion 902. However, in each wire 900, it is desirable that there is at least one curved portion 901 not covered by the covering portion 902.

  In this modification, as shown in FIG. 7, four first substrate side connectors 90 (91A, 91B, 91C and 91D) are arranged at equal intervals in the vertical direction near the edge 411 of the first substrate 41A. Ru. Also, four second substrate connectors 92 (92A, 92B, 92C and 92D) are arranged at equal intervals in the vertical direction near the edge 412 of the second substrate 41B. The four first substrate connectors 91A to 91D face the four second substrate connectors 92A to 92D in the left-right direction, respectively. And the 1st connector parts 93 (93A, 93B, 93C, and 93D) of wire rods 900A-900D are connected to the 1st substrate side connectors 91A-91D, respectively. The second connector portions 94 (94A, 94B, 94C and 94D) of the wires 900A to 900D are connected to the second substrate connectors 92A to 92D, respectively.

(3.5) Modification 5
In the fourth modification, all of the four wire rods 900 penetrate through the covering portion 902 in the left-right direction. However, for example, as in the connection device 9E (variation 5) shown in FIG. 8, a part (one in the illustrated example) of the plurality of wires 900 is three-dimensional with respect to the remaining wire 900 (three in the illustrated example) It may penetrate the covering part 902 so that it may cross.

  In this modification, as an example, in the four wires 900, the wires 900A, 900B, and 900C are aligned and inclined in the lateral direction so as to approach the lower end of the covering portion 902 as they approach the second substrate 41B. , And the covering portion 902. The second connector portions 94A to 94C of the wires 900A to 900C are connected to the second substrate connectors 92B to 92D, respectively. That is, in the connection device 9E, unlike the connection device 9D of the modification 4, the connection destinations of the second connector portions 94A to 94C are the second substrate side connectors 92 shifted downward one by one.

  On the other hand, the wire 900D penetrates the covering portion 902 in a state of being inclined so as to approach the upper end of the covering portion 902 as approaching the second substrate 41B in the left-right direction. In particular, the wire 900D enters from a position behind the other wires 900A to 900C on the left side surface of the covering portion 902, and intersects with the other wires 900A to 900C inside the covering 902. And in the right side of covering part 902, wire rod 900D has come out from approximately the same position as other wire rods 900A-900C in the front-rear direction. The second connector portion 94D of the wire 900D is connected to the uppermost second substrate connector 92A.

  In the present modification, the four wire rods 900 as a whole have a twisted structure, and stress relaxation can be further improved compared to the fourth modification.

(3.6) Modification 6
The covering portions 902 of the fourth modification and the fifth modification are, for example, one resin molded member formed by insert molding. However, for example, as in the connection device 9F (Modification 6) illustrated in FIG. 9, the covering portion 902 may be configured of two resin members of a first divided body 9021 and a second divided body 9022. Each of the first divided body 9021 and the second divided body 9022 has a substantially rectangular shape that is long and flat in the vertical direction. The covering portion 902 is formed by assembling the first divided body 9021 and the second divided body 9022 to each other. In addition, the engagement structure of the following 1st division body 9021 and 2nd division body 9022 is a mere example.

  The first divided body 9021 has four first grooves 9025 in which four wire rods 900 are fitted one by one. The four first grooves 9025 are arranged at equal intervals in the vertical direction on the front surface of the first divided body 9021, and extend from the left end to the right end along the left-right direction. The depth of each first groove 9025 is approximately half the height of the corresponding wire 900 in the front-rear direction. The first divided body 9021 has bridge-like engaged portions 9026 at the upper and lower ends, respectively.

  The second divided body 9022 has four second grooves 9027 in which the four wire members 900 are fitted one by one. The four second grooves 9027 are arranged at equal intervals in the vertical direction on the rear surface of the second divided body 9022, and extend from the left end to the right end along the left-right direction. The four second grooves 9027 face the four first grooves 9025 in the front-rear direction, respectively. The depth of each second groove 9027 is approximately half the height of the corresponding wire 900 in the front-rear direction. In addition, the second divided body 9022 has engaging portions 9028 that project from the inner bottom surface of the recess recessed inward at the upper and lower end surfaces, respectively.

  For assembly of the covering portion 902, for example, four wire rods 900 are fitted in the four first grooves 9025 of the first divided body 9021 respectively, and in this state, the second divided body 9022 is covered on the first divided body 9021 Just do it. By pushing the second divided body 9022 backward, the pair of engaging portions 9028 engage with the pair of engaged portions 9026, respectively. In addition, each wire 900 fits in the corresponding first groove 9025 and second groove 9027.

(3.7) Other Modifications Other modifications are listed below.

  In the basic example, the directions in which the plurality of curved portions 901 become convex are two types, upward and downward. Also in the first modification, the directions in which the plurality of curved portions 901 are convex are two types, the forward direction and the backward direction. However, in the direction away from the straight line L1, a plurality of curved portions 901 that are convex in various directions, such as upward, downward, forward, backward, and diagonal directions, are mixedly provided in one wire 900. It may be done.

  In the basic example, there are two straight extension parts (the first extension part 904 and the second extension part 905) other than the curved part 901 in each wire 900. However, the extension may be appropriately provided also between two adjacent curved portions 901.

  In the basic example, each wire 900 is formed in a corrugated plate shape (that is, a rectangular cross section), but is not particularly limited. Each wire 900 may have a circular cross section or a polygonal shape other than a rectangle.

  In the basic example, the number of substrates 41 provided in the light source unit 3 is two as an example, but may be three or more. For example, when three substrates 41 are arranged side by side, the number of connection devices 9 is two.

  In the basic example, the mounting surface of the first substrate side connector 91 and the second substrate side connector 92 is the front surface of each substrate 41 same as the mounting surface of the LED 40, but may be the back surface of each substrate 41.

(4) Advantages As described above, in the connection devices (9, 9A to 9F) according to the first aspect, the connection conductors (46, 47) are formed adjacent to each other on at least one surface of each other. The conductors (46, 47) of the one substrate (41A) and the second substrate (41B) are electrically connected to each other. The connection device (9, 9A to 9F) includes a first substrate connector (91), a second substrate connector (92), a connecting member (90) having conductivity, and a first connector portion (93). , And a second connector portion (94). The first substrate connector (91) is disposed on the side of the edge (411) of the first substrate (41A) opposite to the edge (412) of the second substrate (41B). The second substrate connector (92) is disposed on the side of the edge (412) of the second substrate (41B). The first connector portion (93) is provided at the first end (90A) of the connecting member (90) and is connected to the first substrate connector (91). The second connector portion (94) is provided at a second end (90B) opposite to the first end (90A) of the coupling member (90), and is connected to the second substrate connector (92). The second connector portion (94) is electrically connected to the first connector portion (93) through the connecting member (90). The connecting member (90) has a curved portion (901) having a curved shape which is convex in a direction away from a virtual straight line (L1) connecting the first connector portion (93) and the second connector portion (94). , Has at least one. According to the first aspect, the connection reliability between the two substrates (between the first substrate 41A and the second substrate 41B) can be improved.

  Regarding the connection device (9D to 9F) according to the second aspect, in the first aspect, the connecting member (90) has a plurality of wire rods (900) and a covering portion (902) preferable. Preferably, each of the plurality of wires (900) has at least one curved portion (901). The cover (902) preferably has electrical insulation and covers a plurality of wires (900). According to the second aspect, even if each of the first board side connector (91) and the second board side connector (92) is a multipolar connector, the connecting member (90) that can correspond to the multipolar connector is used. Can be provided. In addition, the decrease in insulation is suppressed.

  Regarding the connection device (9D to 9F) according to the third aspect, in the second aspect, the covering portion (902) preferably has lower flexibility than the bending portion (901). According to the third aspect, the wire (900) approaches another wire 900 when the wire (900) is deformed as compared with the case where the covering portion (902) has higher flexibility than the curved portion (901). Or the possibility of contact is reduced.

  Regarding the connection device (9D to 9F) according to the fourth aspect, in the second aspect or the third aspect, the curved portion (901) is preferably exposed from the covering portion (902). According to the fourth aspect, the alleviation of the stress obtained by the bending portion (901) is suppressed from being inhibited by the covering portion (902).

  Regarding the connection device (9D to 9F) according to the fifth aspect, in any one of the second to fourth aspects, the covering portion (902) preferably has an intervening portion (903). The intervening portion (903) is preferably interposed between two adjacent wires (900) among the plurality of wires (900). According to the fifth aspect, the insulation distance between adjacent wires (900) in the plurality of wires (900) can be easily maintained, and the decrease in electrical insulation can be suppressed.

  Regarding the connection device (9D, 9E) according to the sixth aspect, in any one of the second to fifth aspects, the covering portion (902) is preferably a molded member formed by insert molding. According to the sixth aspect, as compared with the case where the covering portion (902) is configured by assembling, for example, two different members, automation of manufacturing of the connection devices (9, 9A to 9F) is facilitated.

  The light source unit (3) according to the seventh aspect includes the connection device (9, 9A to 9F) according to any one of the first to sixth aspects. The light source unit (3) includes a first substrate (41A) and a second substrate (41B), one or more first solid light sources (first LED 40A), and one or more second solid light sources (second LED 40B) And. One or more first solid-state light sources (first LEDs 41) are mounted on the first substrate (41A). One or more second solid state light sources (second LEDs 40B) are mounted on the second substrate (41B). According to the seventh aspect, it is possible to provide the light source unit (3) capable of improving the connection reliability between two substrates (between the first substrate 41A and the second substrate 41B).

  A luminaire (1) according to an eighth aspect includes the light source unit (3) according to the seventh aspect, and an instrument body (2) for holding the light source unit (3). According to the eighth aspect, it is possible to provide a luminaire (1) capable of improving the connection reliability between two substrates (between the first substrate 41A and the second substrate 41B).

DESCRIPTION OF SYMBOLS 1 lighting fixture 2 apparatus main body 3 light source unit 40A 1st LED (1st solid light source)
40B 2nd LED (2nd solid state light source)
41A first substrate 411 edge 41B second substrate 412 edge 46 conductor 47 conductor 9, 9A to 9F connecting device 90 connecting member 90A first end 90B second end 900 wire rod 901 curved portion 902 covering portion 903 intervening portion 91 first substrate side Connector 92 Second board connector 93 First connector 94 Second connector L1 Virtual straight line

Claims (8)

A connecting device for electrically connecting the conductors of a first substrate and a second substrate on which conductors for wiring are formed adjacent to each other and on at least one surface of each of the substrates.
A first substrate side connector disposed on the side of the edge of the first substrate facing the edge of the second substrate;
A second substrate side connector disposed on the side of the edge of the second substrate;
A connecting member at least a part of which is electrically conductive;
A first connector portion provided at a first end of the connecting member and connected to the first substrate side connector;
A second connector portion provided at a second end of the connecting member opposite to the first end and connected to the second substrate side connector;
Equipped with
The second connector portion is electrically connected to the first connector portion via the connection member,
The connection member has at least one curved portion having a curved shape that is convex in a direction away from a virtual straight line connecting the first connector portion and the second connector portion. Connection device. The connecting member is
A plurality of wires, each having at least one said curved portion;
The connection device according to claim 1, further comprising: a coating portion having electrical insulation and coating the plurality of wires. The connection device according to claim 2, wherein the covering portion has flexibility lower than that of the bending portion. The connection device according to claim 2, wherein the curved portion is exposed from the covering portion. The connecting device according to any one of claims 2 to 4, wherein the covering portion includes an intervening portion interposed between two adjacent ones of the plurality of wires. The connection device according to any one of claims 2 to 5, wherein the covering portion is a formed member formed by insert molding. The connection device according to any one of claims 1 to 6,
The first substrate and the second substrate;
One or more first solid-state light sources mounted on the first substrate;
A light source unit comprising: one or more second solid light sources mounted on the second substrate. A luminaire comprising the light source unit according to claim 7 and an instrument main body holding the light source unit.

Images