JP2013016326A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector facilitating connection work with a substrate member and the like, saving the number of components for storing a conductive member, capable of certainly keeping a conduction state, and capable of sufficiently ensuring a distance related to insulation while being downsized.SOLUTION: A first connector 4 connects an LED substrate 3 and a relay substrate 5. In a housing 42 made from a single member of the first connector 4, a contact 41 is held. The housing 42 includes: a first storage portion 59 in which the LED substrate 3 is inserted in an insertion direction D1; a second storage portion 60 in which the relay substrate 5 is inserted in the insertion direction D1; a rear wall 58 disposed on the insertion direction D1 side to the first storage portion 59 and the second storage portion 60; and an opposing portion 81 opposing to a chassis body 2a in a direction parallel with the insertion direction D1.

Description

  The present invention relates to an electrical connector that electrically connects a substrate on which a light emitting element is mounted and a power supply member for supplying power to the light emitting element.

  A backlight device including an LED (Light Emitting Diode) as a light emitting element is known (see, for example, Patent Documents 1 and 2). Further, a backlight device including a CCFL (Cold Cathode Fluorescent Lamp) is known (see, for example, Patent Document 3). The LED backlight device disclosed in Patent Document 1 includes a chassis panel, an LED substrate disposed on the front surface side of the chassis panel, and an LED driver substrate disposed on the rear surface side of the chassis panel. Connection holes are formed in the chassis panel.

  In the configuration disclosed in FIG. 2 of Patent Document 1, an electrical connector is inserted through the connection hole. The electrical connector includes a portion fixed to the LED substrate by soldering and a portion fixed to the LED driver substrate by soldering. That is, the LED board and the LED driver board are electrically connected by a board-to-board connector.

  In the configuration disclosed in Patent Document 2, the LED substrate and the LED driver substrate sandwich the flat portion of the bottom chassis of the backlight unit. The LED board and the LED driver board are electrically connected by metal pins. The pin is held by an insulating housing and an insulating slide portion slidably coupled to the housing.

  Moreover, in patent document 3, CCFL arrange | positioned at the surface side of a housing | casing and the inverter board arrange | positioned at the back surface side of a housing | casing are electrically connected by the electrical connector. The electrical connector is connected to the inverter board and to the CCFL.

International Publication WO2008 / 108039 Pamphlet (FIG. 2, Claim 9) JP 2010-176968 A ([0053], [0054], FIG. 5) JP 2009-301958 A (FIG. 1)

  In the configuration described in Patent Document 1, a laborious work of soldering the male contact and the female contact of the electrical connector to the LED substrate and the LED driver substrate is necessary. Further, in the configuration in which the contact and the substrate are soldered, stress is generated in the solder portion when a displacement occurs in which the contact is displaced with respect to the substrate. Furthermore, a stress due to a difference in thermal expansion between the solder portion and the substrate is generated in the solder portion. For this reason, there exists a possibility that a crack may arise in a solder part. Such cracks are preferably absent from the viewpoint of suppressing poor conduction.

  Further, in the configuration described in Patent Document 2, two parts of a housing and a slide portion are provided as metal pins, that is, an insulating member that accommodates a conductive member. There are many points. Moreover, in said metal pin, a part of part facing the LED board is exposed from the housing. For this reason, when a bottom chassis is arrange | positioned in the vicinity of the said exposed part, it becomes difficult to ensure sufficient insulation distance between a metal pin and a bottom chassis. In this case, although it is conceivable to increase the distance between the pin and the bottom chassis, the apparatus becomes large.

  Moreover, in the structure of patent document 3, the electrode of CCFL as a light emitting member becomes a structure which contacts an electrical connector directly. On the other hand, the LED is configured to be connected to an electrical connector via an LED substrate on which the LED is mounted. Therefore, the configuration in which the CCFL is electrically connected to the electrical connector and the configuration in which a light emitting element such as an LED is electrically connected to the electrical connector are greatly different. For this reason, the structure of patent document 3 cannot be applied as it is to the structure which electrically connects the board | substrate which mounted the light emitting element, and an electrical connector.

  In view of the above circumstances, the present invention makes it easy to connect to a substrate member, etc., requires only a small number of components for housing the conductive member, can reliably maintain the conductive state, and can be downsized. An object of the present invention is to provide an electrical connector that can achieve a sufficient distance for insulation while being realized.

  An electrical connector according to a first invention for achieving the above object includes a light emitting element substrate on which a light emitting element is mounted, a power supply member for supplying power to the light emitting element substrate, the light emitting element substrate, and the power supply member. An electrical connector for connecting the light emitting element substrate of the lighting device and the power feeding member, and a holding member held by the housing. The housing has a first opening into which the light emitting element substrate is inserted along a predetermined insertion direction and can accommodate a part of the light emitting element substrate. And a part of the power supply member, the second power supply member being inserted along the insertion direction and spaced apart from the first opening with respect to a direction orthogonal to the insertion direction. Can be accommodated A second accommodating portion, a wall portion disposed on the insertion direction side with respect to the first accommodating portion and the second accommodating portion, and covering the first accommodating portion and the second accommodating portion, and the inserting direction, A contact portion facing the chassis in a parallel direction, wherein the contact is disposed in the first housing portion so as to be in contact with a conductive portion provided on the part of the light emitting element substrate. A first contact portion, a second contact portion disposed in the second housing portion so as to be in contact with a conductive portion provided in the part of the power supply member, the first contact portion, and the second contact portion. And a connecting portion for connecting the two.

  According to this invention, the light emitting element substrate is accommodated in the first accommodating portion through the first opening along the insertion direction. Further, the power supply member is accommodated in the second accommodating portion through the second opening along the insertion direction. As described above, the connection work between the light emitting element substrate and the contact and the connection work between the power supply member and the contact can be completed by a simple work of inserting the light emitting element substrate and the power supply member along the insertion direction. . Therefore, the time-consuming work of soldering the light emitting element substrate and the power feeding member to the contacts is unnecessary, and the connection work between the electrical connector and the substrate can be easily performed. The housing is composed of a single part. Thereby, the number of parts which accommodate the contact as a conductive member can be minimized. Furthermore, since no solder is required for the connection between the contact and the light emitting element substrate and the connection between the contact and the power supply member, there is no continuity failure due to cracks in the solder portion, and there is no continuity between the contact and these members. The state can be reliably maintained. The wall portion can cover the contact, the light emitting element substrate, and the power feeding member. Thereby, even when parts other than an electrical connector such as a chassis are arranged in the immediate vicinity of the wall portion in the insertion direction, a sufficient insulation distance (creeping distance) between the contact and the other parts can be secured. . Thereby, it is possible to sufficiently secure an insulation distance between the contact and the other components while downsizing the housing.

  Therefore, according to the present invention, the connection work with the board member and the like is easy, the number of parts for housing the conductive member can be reduced, the conductive state can be reliably maintained, and the insulation can be realized while realizing the miniaturization. It is possible to provide an electrical connector that can secure a sufficient distance.

  An electrical connector according to a second invention is the electrical connector according to the first invention, wherein the contact includes a first elastic piece portion provided with the first contact portion, and the housing is the part of the light emitting element substrate. And a first support part that sandwiches the light emitting element substrate in cooperation with the first contact part.

  According to the present invention, the location of the light emitting element substrate can be defined by the first support portion. Thereby, the quantity which a light emitting element board | substrate elastically presses a 1st elastic piece part can be made substantially constant. Therefore, it is possible to suppress the occurrence of individual differences in the contact pressure between the conductive portion of the light emitting element substrate and the first contact portion, and it is possible to more reliably maintain the conduction state between the light emitting element substrate and the first contact portion.

  An electrical connector according to a third aspect of the invention is the electrical connector of the first aspect or the second aspect, wherein the contact includes a second elastic piece portion provided with the second contact portion, and the power feeding member is flat. A power supply substrate as a substrate provided on the base portion, and the housing is capable of contacting the part of the power supply substrate. It includes a second support portion that sandwiches the power supply substrate in cooperation with the second contact portion.

  According to the present invention, the location of the power supply substrate can be defined by the second support portion. Thereby, the amount by which the power supply substrate elastically presses the second elastic piece can be made substantially constant. Therefore, it can suppress that an individual difference arises in the contact pressure between the electroconductive part and 2nd contact part of a light emitting element board | substrate, and can maintain more reliably the conduction | electrical_connection state of an electric power feeding board | substrate and a 2nd contact part.

  An electrical connector according to a fourth invention is the electrical connector according to the second invention, wherein the housing is in contact with the front surface of the chassis and the first contact surface is in contact with the rear surface of the chassis. A second abutting surface for sandwiching the chassis in cooperation with the first abutting surface, wherein the first support portion is arranged on the same plane as the first abutting surface.

  According to the present invention, in a state where the chassis is sandwiched between the first contact surface and the second contact surface of the electrical connector, the light emitting element substrate partially inserted into the first housing portion is brought into direct contact with the surface of the chassis. be able to. Thereby, the heat of a light emitting element can be smoothly transmitted to a chassis via a light emitting element board | substrate. Therefore, the heat discharging performance of the light emitting element can be further increased.

  An electrical connector according to a fifth aspect of the present invention is the electrical connector according to any one of the first to fourth aspects, wherein the facing portion is formed with a communication portion that communicates the first accommodation portion and the second accommodation portion. The first contact portion, the second contact portion, and the connection portion of the contact are inserted into the first storage portion, the second storage portion, and the communication portion, respectively, along the insertion direction. It is hold | maintained at the said housing, It is characterized by the above-mentioned.

  According to the invention, the contacts can be inserted into the housing along the insertion direction. Thereby, the 1st opening part and 2nd opening part for inserting a light emitting element board | substrate and an electric power feeding member can be used also as an insertion port for inserting a contact. Therefore, it is not necessary to provide an insertion port for inserting the contact into the housing separately from the first opening and the second opening, and the number of openings formed in the housing can be reduced. As a result, it is possible to secure a larger insulation distance for the contact.

  The first support part and the second support part may be disposed between the first contact part and the second contact part.

  In this case, the light emitting element substrate and the power feeding member can be disposed close to each other between the first contact portion and the second contact portion. Thereby, the space which an electrical connector, a light emitting element substrate, and an electric power feeding member occupy can be made smaller.

  The housing includes an outer peripheral wall that connects the wall formed with the wall in which the first opening and the second opening are formed, and the outer peripheral wall is formed in a cylindrical shape surrounding the contact. There is a case.

  In this case, since the contact can be surrounded by the outer peripheral wall, the insulation distance between the member such as the chassis and the contact can be further increased.

  The power supply member may be a predetermined connector including a housing including an insertion portion that is inserted into the second housing portion, and a contact that is disposed in the insertion portion and can contact the second contact portion. .

  In this case, a predetermined connector connected to the electrical connector can be used as the power supply member. Thus, the connection work between the predetermined connector and the electrical connector can be completed by a simple operation of inserting the predetermined connector into the electrical connector.

  Further, there may be a lock portion for locking the housing to the chassis.

  In this case, the state where the housing is held in the chassis can be reliably maintained.

  Further, when the contact is inserted into the housing along the insertion direction, the contact includes a convex portion that extends from the coupling portion in the opposite direction opposite to the insertion direction and can be engaged with a tool. In some cases, the contact may be inserted into the housing by pressing the convex portion with a tool.

  In this case, the contact can be easily inserted into the housing by a simple operation of holding the convex portion extending from the connecting portion with a tool and displacing it in the insertion direction.

  In this case, the contact further includes a first base piece portion that connects the connecting portion and the first elastic piece portion, a second base piece portion that connects the connecting portion and the second elastic piece portion, and In some cases, the first base piece and the second base piece may include first and second convex portions extending in opposite directions opposite to the insertion direction.

  In this case, the first convex portion and the second convex portion can be pressed with the tool after the contact is accommodated in the housing while the convex portion extending from the connecting portion is held by the tool. Thereby, a 1st contact part and a 2nd contact part can be arrange | positioned in the regular position deep inside a 1st accommodating part and a 2nd accommodating part, respectively.

  According to the present invention, the connection work with the board member or the like is easy, the number of parts for housing the conductive member can be reduced, and the conductive state can be reliably maintained, and further, the distance related to insulation while realizing miniaturization. It is possible to provide an electrical connector that can sufficiently ensure the above.

It is a perspective view which shows schematic structure of an illuminating device provided with the electrical connector concerning one Embodiment of this invention, and fractured | ruptured and illustrated one part of the illuminating device in the state seen from the front side. It is a perspective view which shows schematic structure of an illuminating device provided with the electrical connector concerning one Embodiment of this invention, and fractured | ruptured and illustrated one part of the illuminating device seen from the back side. It is a bottom view of a relay substrate. It is a perspective view which expands and shows the principal part of a relay board | substrate. It is sectional drawing of the illuminating device in the 1st connector periphery, and has shown the state which looked at the 1st connector etc. from the direction orthogonal to the longitudinal direction of a LED board. It is a side view of the 1st connector, and shows the state where an LED board and a relay board were inserted. It is a perspective view of the 1st connector. (A) is a perspective view of a contact, (b) is a front view of the contact, and (c) is a side view of the contact. It is a side view of the housing of the state of a single item, and shows the state where the housing was seen from the front wall side along the insertion direction. It is the top view which looked at the 1st connector of the state attached to the chassis main body from the height direction. It is the side view which looked at the illuminating device along the width direction, and has shown partly fractured | ruptured. (A), (b) is a side view for demonstrating the assembly of a 1st connector, respectively. It is a side view for demonstrating the assembly of a 1st connector. It is sectional drawing which shows the principal part of the illuminating device which concerns on another embodiment of this invention, and has shown the state which looked at the 1st connector etc. from the direction orthogonal to the longitudinal direction of a LED board. It is a side view of the 1st connector of FIG. 14, and has shown the state by which the LED board and the relay board | substrate were inserted. FIG. 15 is a perspective view of the first connector of FIG. 14. (A) is a perspective view of a contact, (b) is a side view of a contact. It is the side view which looked at the principal part of another embodiment of this invention from the width direction, and has shown one part by the cross section. It is a top view of the relay substrate of another embodiment of the present invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In addition, this invention can be widely applied to various uses as an illuminating device or the electrical connector used for an illuminating device.

  FIG. 1 is a perspective view showing a schematic configuration of a lighting device including an electrical connector according to an embodiment of the present invention, and shows a part of the lighting device in a state viewed from the front side. FIG. 2 is a perspective view showing a schematic configuration of a lighting device including an electrical connector according to an embodiment of the present invention, and shows a part of the lighting device in a state viewed from the back side.

  The illumination device 1 is a backlight device that is attached to the back surface of a liquid crystal panel of a liquid crystal display device and applies light to the liquid crystal panel, for example. In addition, the illuminating device 1 is not restricted to the backlight apparatus of a liquid crystal panel, For example, as an illuminating lamp or a display lamp, Furthermore, it can be used as various other illuminating devices.

  The lighting device 1 includes a chassis 2, an LED substrate 3 as a light emitting element substrate, a first electrical connector 4, a relay substrate 5, and a driver substrate 6.

  The chassis 2 is provided as a skeleton part of the lighting device 1. Further, the chassis 2 is provided as a heat sink that releases heat from the LED substrate 3. The chassis 2 is formed using, for example, a metal material. Examples of the metal material include an aluminum material that is lightweight and excellent in thermal conductivity.

  The thickness of the chassis 2 is, for example, about 1 mm. The chassis 2 is formed in a box shape, and the front is open. More specifically, the chassis 2 includes a chassis main body 2a formed in a rectangular flat plate shape, a rectangular annular chassis peripheral wall 2b extending from the outer peripheral portion of the surface of the chassis main body 2a in a direction perpendicular to the chassis main body 2a, Is included. 1 and 2, the chassis peripheral wall 2b is shown with a part thereof broken.

  The chassis main body 2 a is arranged so that a part thereof is sandwiched between the LED board 3 and the relay board 5, and is arranged in parallel with the LED board 3 and the relay board 5. A connector insertion hole 2c is formed in the chassis body 2a. The connector insertion hole 2c is provided to insert the first electrical connector 4 and is disposed in the vicinity of the chassis peripheral wall 2b. The connector insertion holes 2 c are substantially rectangular holes provided in the same number as the number of the first electrical connectors 4. The connector insertion holes 2c are arranged at equal intervals along one side of the chassis body 2a.

  The LED substrate 3 is provided as a substrate member on which an LED (Light Emitting Diode) 7 as a light emitting element is mounted. A plurality (five in the present embodiment) of LED substrates 3 are arranged at equal intervals along a predetermined arrangement direction. In addition, since the structure of each LED board 3 is the same, below, the one LED board 3 is mainly demonstrated below and the detailed description about the other LED board 3 is abbreviate | omitted.

  The LED substrate 3 is disposed in parallel with the chassis main body 2a on the surface 2d of the chassis main body 2a, and is formed in an elongated rectangular plate shape extending elongated. The LED board 3 is in direct contact with the chassis body 2a, and heat from the LEDs 7 can be released from the LED board 3 to the chassis body 2a.

  On the surface of the LED substrate 3, a plurality of (in the present embodiment, five) LEDs 7 are arranged at equal intervals along the longitudinal direction of the LED substrate 3. In addition, in this embodiment, although LED is used as a light emitting element, it may not be this way. A light emitting element other than an LED may be used as the light emitting element. The LED substrate 3 has a configuration in which an aluminum plate is used as a base member, an insulating layer is formed on the base member, and conductive portions 3b and 3c are provided on the insulating layer.

  The conductive portions 3b and 3c are formed using a conductive material such as copper foil. The conductive portion 3 b is configured as a conductive portion on the positive electrode side, and one end thereof is disposed on the one end portion 3 a of the LED substrate 3. In addition, the conductive portion 3b is electrically connected to the positive electrode of each LED 7. The conductive portion 3 c is configured as a conductive portion on the negative electrode side, and one end thereof is disposed on the one end portion 3 a of the LED substrate 3. In addition, the conductive portion 3 c is electrically connected to the negative electrode of each LED 7. One end 3a of the LED board 3 is disposed adjacent to the connector insertion hole 2c. The first electrical connector 4 is inserted through the connector insertion hole 2c.

  The first electrical connector 4 (hereinafter, the electrical connector is also simply referred to as “connector”) is provided to electrically connect the LED substrate 3 and the relay substrate 5. The first connector 4 is provided on each of the plurality of LED substrates 3. In addition, since the structure of each 1st connector 4 is the same, below, the 1st connector 4 is mainly demonstrated below and the detailed description about the other 1st connector 4 is abbreviate | omitted.

  The first connector 4 is mechanically and electrically connected to the LED substrate 3. The first connector 4 is mechanically and electrically connected to the relay board 5. The first connector 4 passes through the connector insertion hole 2c, is held at the edge of the connector insertion hole 2c, and is detachable from the connector insertion hole 2c. Thereby, replacement | exchange and maintenance work of LED board 3 are easy. The detailed structure of the first connector 4 will be described later. A relay board 5 is connected to the first connector 4.

  The relay substrate 5 is provided as a power supply member (power supply substrate) for electrically connecting the plurality of first connectors 4 together with the driver substrate 6. The relay board 5 is provided to supply power to the LED board 3. The relay board 5 faces the LED board 3 with the chassis body 2a interposed therebetween, and is arranged in parallel with the chassis body 2a on the back surface 2e side of the chassis body 2a.

  The relay board 5 is disposed adjacent to each connector insertion hole 2c. In the present embodiment, the relay board 5 is a multilayer circuit board. The relay substrate 5 is a glass epoxy substrate as a rigid substrate, for example, and has a configuration in which insulating layers and conductive layers are alternately stacked. The relay board 5 may be a single layer circuit board. The thickness of the relay substrate 5 is substantially the same as the thickness of each of the LED substrate 3 and the driver substrate 6.

  The relay substrate 5 includes a flat base portion 8 and a relay conductive portion (conductive portion) 9 formed on the base portion 8. The base portion 8 is provided as an insulating portion of the relay substrate 5. The base portion 8 is formed in an elongated rectangular plate shape and has a configuration in which a plurality of convex portions are formed on one edge portion. The base portion 8 includes a first base portion 11 and a second base portion 12.

  FIG. 3 is a bottom view of the relay substrate 5. In FIG. 3, a second connector 26 to be described later attached to the relay board 5 is illustrated by a two-dot chain line. Referring to FIGS. 2 and 3, the first base portion 11 is formed in an elongated rectangular plate shape that extends in the direction in which the plurality of LED substrates 3 are arranged in the longitudinal direction. Among the first base portion 11, a plurality of second base portions 12 extend from one edge portion extending in the longitudinal direction of the first base portion 11.

  The second base portion 12 is configured to be connected to each first connector 4 by being inserted into each first connector 4. The same number of second base portions 12 as the number of first connectors 4 are provided, and the second base portions 12 are arranged at positions corresponding to the first connectors 4. Each second base portion 12 is formed in a rectangular shape extending from the first base portion 11 toward the corresponding first connector 4. Each second base portion 12 extends in a direction intersecting with the direction in which the first base portion 11 extends, more specifically, in a direction orthogonal to each other. The relay conductive portion 9 is disposed on the first base portion 11 and the second base portion 12.

  The relay conductive portion 9 is provided to electrically connect the first connector 4 and the drive circuit 6a (see FIG. 1) of the driver board 6. The relay conductive portion 9 is formed using a conductive material such as copper foil. The number of relay conductive portions 9 corresponding to the number of first connectors 4, that is, the same number as the number of first connectors 4 (five in this embodiment) is provided. Each relay conductive portion 9 (91, 92, 93, 94, 95, which is simply referred to as the relay conductive portion 9 when collectively referred to) is disposed on at least one of the front surface 8a, the back surface 8b, and the intermediate layer of the base portion 8. ing.

  Each relay conductive portion 9 includes one or a plurality (two in the present embodiment) of conductive portions (conductive wires). In other words, in this embodiment, the relay conductive portion 9 includes 2 × 5 = 10 conductive portions. One conductive portion of each relay conductive portion 9 is provided corresponding to the positive electrode of the LED substrate 3, and the other conductive portion is provided corresponding to the negative electrode (conductive portion 3 c) of the LED substrate 3. .

  Each relay conductive part 9 includes a relay part 13, and a first connection part 14 and a second connection part 15 arranged at both ends of the relay part 13.

  The relay unit 13 is provided to electrically connect the first connection unit 14 and the second connection unit 15. In the present embodiment, the positive electrode side portion of the relay portion 13 of the relay conductive portion 91, the positive electrode portion of the relay portion 13 of the relay conductive portion 92, the positive electrode portion of the relay portion 13 of the relay conductive portion 93, and the relay of the relay conductive portion 94. The positive electrode side portion of the portion 13 and the positive electrode side portion of the relay portion 13 of the relay conductive portion 95 respectively have through holes 21, 22, 23, 24, and 25 in the middle portion. Among these positive electrode side portions of the relay portion 13, one side portion with respect to the through holes 21 to 25 is arranged in the inner layer of the base portion 8, and the other side portion is arranged to be exposed on the back surface 8 b of the base portion 8. Has been. Further, the negative electrode side portion of each relay portion 13 of the relay conductive portions 91 to 95 is disposed on the back surface 8 b of the base portion 8. These negative electrode side portions are formed in a shape that is gathered into one at a midway portion from the second connection portion 15 toward the first connection portion 14.

  The 1st connection part 14 is provided as a terminal part electrically connected with the driver board | substrate 6 (refer FIG. 1). The first connection portion 14 (141, 142, 143, 144, 145, 146, simply referred to as the first connection portion 14 when collectively referred to) is concentrated on one end portion 11a of the first base portion 11 in the longitudinal direction. Has been placed. One end portion 11a in the longitudinal direction of the first base portion 11 is disposed in the vicinity of one edge portion of the chassis main body 2a, so that an operator's hand can easily reach from the outside of the chassis main body 2a.

  In the present embodiment, the first connection portion 14 is formed by a through hole (also referred to as a via hole) formed in the relay substrate 5. The through-hole has a configuration in which a conductive layer made of copper foil or the like is provided on the inner peripheral surface of the hole formed in the first base portion 11. The first connection parts 141, 142, 143, 144, 145 are respectively connected to the positive electrode side portions of the corresponding relay parts 13. The first connection portion 146 is connected to the negative electrode side portion of the relay portion 13.

  In addition, although this embodiment demonstrates the form in which the 1st connection part 14 is a through hole, it does not need to be this way. For example, the first connection portion 14 may be a conductive pad formed on the front surface 8 a or the back surface 8 b of the base portion 8. In this case, a conductive pad is provided on the front surface 8a or the back surface 8b of the base portion 8, and an electrical connector or the like is connected to the conductive pad.

  The second connection portion 15 is provided as a terminal portion that is electrically and mechanically connected to the first connector 4. The second connection portions 15 (151, 152, 153, 154, and 155, which are collectively referred to simply as the second connection portion 15) are disposed on the second base portion 12, respectively. Each second connection portion 15 is disposed on the back surface 8 b of the base portion 8. Each second connection portion 15 includes a positive electrode side portion and a negative electrode side portion formed in an elongated rectangular shape.

  The positive electrode side portion of each second connection portion 15 is connected to the positive electrode side portion of the corresponding relay portion 13. The negative electrode side portion of each second connection portion 15 is connected to the negative electrode side portion of the corresponding relay portion 13.

  With the above configuration, the first connection portions 141, 142, 143, 144, and 145 as the positive electrode terminals respectively correspond to the second connection portions 151, 152, and 153 through the positive electrode side portions of the corresponding relay portions 13. , 154, 155 are connected to the positive electrode side portion. The first connection portion 146 as a negative electrode terminal is connected to the negative electrode side portion of each of the second connection portions 151, 152, 153, 154, and 155 through the negative electrode side portion of the relay portion 13. The relay substrate 5 is provided as a card edge type connector including a second base portion 12 protruding from one edge portion of the first base portion 11.

  FIG. 4 is an enlarged perspective view showing the main part of the relay substrate 5. Referring to FIGS. 1 and 4, lighting device 1 includes a second connector 26 as an electrical connector mounted on relay board 5 and a third connector 31 as an electrical connector provided on driver board 6. In addition.

  The second connector 26 and the third connector 31 are provided to electrically connect the relay board 5 and the driver board 6, and the third connector 31 is detachably coupled to the second connector 26. It has become. The second connector 26 is provided, for example, as a DIP (Dual Inline Package) type insertion mounting connector. The second connector 26 is disposed on the back surface 8 b of the base portion 8. Thereby, the surface 8a of the base part 8 can be disposed closer to the chassis body 2a, and the lighting device 1 can be made thinner.

  The second connector 26 includes an insulating second housing 27 made of synthetic resin, and a plurality of second contacts 28 held by the second housing 27. The second housing 27 is formed in a box shape with one end released, and is disposed along the back surface 8 b of the base portion 8. The second contact 28 is a conductive member having a plating layer formed on the surface of a metal material, and is provided in the same number as the number of the first connection portions 14 (6 in the present embodiment).

  Each second contact 28 protrudes from the second housing 27 and is fitted to the first connection portion 14 as a corresponding through hole. These second contacts 28 are directly fixed to the corresponding first connection portions 14 using solder (not shown). The second contacts 28 extend into the second housing 27 and are electrically and mechanically connected to the third connector 31.

  In the present embodiment, the configuration in which the second contact 28 is directly fixed to the first connection portion 14 has been described, but this need not be the case. For example, each 1st contact 28 and the corresponding 1st connection part 14 may be connected mechanically and electrically via the electric wire. Moreover, although the 2nd connector 26 has demonstrated the structure which is a dip type electrical connector, it may not be this way. For example, the 1st connection part 14 may be provided as a pad arrange | positioned at the back surface 8b of the base part 8, and the surface mount (SMT, Surface Mount Technology) type 2nd connector may be mounted in these pads.

  The third connector 31 includes an insulating third housing 32 formed of a synthetic resin and a plurality of third contacts 33 held by the third housing 32. The third housing 32 is formed in a box shape and is detachably fitted to the second housing 27. The third contact 33 is a conductive member having a plating layer formed on the surface of a metal material, and is provided in the same number as the number of the second contacts 28 (6 in the present embodiment). In FIG. 4, only one third contact 33 among the third contacts 33 is illustrated. Each third contact 33 is disposed in the third housing 32 and is in contact with the corresponding second contact 28.

  Each third contact 33 is electrically and mechanically connected to the driver substrate 6 via a covered electric wire 34. Thereby, each 3rd connector is electrically connected with the drive circuit 6a mentioned later of the driver board | substrate 6 via the covered electric wire 34. FIG. The covered electric wire 34 has a configuration in which the outer periphery of the electric wire is covered with an insulating material, and the electric wires are exposed at both ends.

  The covered wires 34 are provided corresponding to the third contacts 33, and the same number as the number of the third contacts 33 (6 in the present embodiment) is provided. The electric wire at one end of each covered electric wire 34 is fixed to the third contact 33. The other end of each covered wire 34 is electrically and mechanically connected to the driver substrate 6 using solder or the like. As described above, since the covered electric wire 34 is interposed between the third connector 31 and the driver board 6, the third connector 31 can be moved independently of the driver board 6. Therefore, it is easy for a worker to connect the second connector 26 and the third connector 31.

  In the present embodiment, the configuration in which each third contact 33 and the drive circuit 6a are electrically connected via the covered electric wire 34 has been described, but this need not be the case. For example, the third contact 33 may be directly and electrically connected to the drive circuit 6a. The third connector 31 may be a dip type insertion mounting connector or a surface mounting type connector. In this case, the second connector 26 and the third connector 31 constitute a board-to-board type electrical connector that directly connects the relay board 5 and the driver board 6. Further, although the covered electric wire 34 is electrically connected to the first connecting portion 14 via the third connector 31 and the second connector 26, this need not be the case. For example, the electric wire of the covered electric wire 34 may be directly fixed to the first connecting portion 14 using solder.

  The driver board 6 is provided for driving the LED 7, that is, for causing the LED 7 to emit light. The driver board 6 is formed in a rectangular plate shape by, for example, a printed wiring board. The driver board 6 is disposed in parallel with the chassis main body 2a and the relay board 5 on the back surface 2e side of the chassis main body 2a. Thereby, the lighting device 1 is thinned.

  A driver circuit 6 a is mounted on the driver board 6. The drive circuit 6 a is provided to drive the LED 7, and is configured to output power transmitted from a household power supply via an outlet (not shown) or the like to the LED 7 as drive power for the LED 7. An electric wire at the other end of each covered electric wire 34 is electrically connected to the drive circuit 6a. With the above configuration, the current (power) for driving the LED 7 is supplied from the driver board 6 through the covered electric wire 34, the third connector 31, the second connector 26, the relay board 5, the first connector 4, and the LED board 3. Are supplied to the LED 7. Next, the current flowing through the LED 7 returns to the driver board 6 via the LED board 3, the first connector 4, the relay board 5, the second connector 26, the third connector 31, and the covered electric wire 34.

  FIG. 5 is a cross-sectional view of the lighting device 1 around the first connector 4 and shows a state in which the first connector 4 and the like are viewed from a direction orthogonal to the longitudinal direction of the LED substrate 3. Referring to FIG. 5, the first connector 4 is provided to electrically connect the LED board 3 and the relay board 5. The first connector 4 is electrically and mechanically connected to the LED substrate 3, and is electrically and mechanically connected to the relay substrate 5. The first connector 4 is inserted into the connector insertion hole 2c from the rear surface 2e side of the chassis main body 2a, and then slid and displaced along the insertion direction D1 described later with respect to the chassis main body 2a. It is fixed.

  FIG. 6 is a side view of the first connector 4 and shows a state in which the LED board 3 and the relay board 5 are inserted. FIG. 7 is a perspective view of the first connector 4. Referring to FIGS. 5, 6, and 7, the first connector 4 includes a contact 41 and a housing 42 that houses the contact 41. In the following, the width direction X1 of the housing 42 is simply referred to as the “width direction X1”, and the length direction Y1 orthogonal to the width direction X1 of the housing 42 is simply referred to as the “length direction Y1”. The height direction Z1 orthogonal to both the height directions Y1 is simply referred to as “height direction Z1”.

  In the lighting device 1, the width direction X1 corresponds to the longitudinal direction of the first base portion 11 of the relay board 5, the length direction Y1 corresponds to the longitudinal direction of the LED board 3, and the height direction Z1 corresponds to the chassis body. It corresponds to the thickness direction of 2a. Further, the LED board 3 is inserted into the first connector 4 along a predetermined insertion direction D1 parallel to the length direction Y1. Further, the relay board 5 is inserted into the first connector 4 along the insertion direction D1.

  The contact 41 is electrically and mechanically connected to each of the LED substrate 3 and the relay substrate 5. Two contacts 41 are provided on the first connector 4. Specifically, the contacts 41 a and 41 b are spaced apart from each other in the longitudinal direction of the first base portion 11 of the relay substrate 5. One contact 41 (41 a) is mechanically and electrically connected to the positive electrode side portion of the second connection portion 15 of the relay substrate 5 and the conductive portion 3 b on the positive electrode side of the LED substrate 3. The other contact 41 (41 b) is mechanically and electrically connected to the negative electrode side portion of the second connection portion 15 of the relay substrate 5 and the conductive portion 3 c on the negative electrode side of the LED substrate 3.

  The positive electrode side contact 41a and the negative electrode side contact 41b have the same configuration. Therefore, hereinafter, the contact 41a on the positive electrode side will be mainly described, and the detailed description of the contact 41b on the negative electrode side will be omitted.

  8A is a perspective view of the contact 41, FIG. 8B is a front view of the contact 41, and FIG. 8C is a side view of the contact. 5 and 8A, the contact 41 is provided as a conductive member having a plating layer formed on the surface of a metal material. The contact 41 is formed by press molding and is a single member. That is, the contact 41 is integrally formed using a single member. In the present embodiment, a single member indicates that the whole is integrally formed using a single member.

  The contact 41 is configured to sandwich the LED substrate 3 and the relay substrate 5 in the height direction Z1. The contact 41 includes a first base piece portion 43, a first elastic piece portion 44, a second base piece portion 45, a second elastic piece portion 46, and a connecting portion 47.

  The first base piece portion 43 is provided as a portion that supports the first elastic piece portion 44, is continuous with the connecting portion 47, and is fixed to the housing 42. The 1st base piece part 43 is formed in the substantially rectangular flat plate shape extended in parallel with the LED board 3, and is elongated in the length direction Y1. The end of the first base piece 43 on the insertion direction D1 side is shorter in the width direction X1 than the portion on the opposite side of the insertion direction D1. First convex portions 48 and 48 are formed at the end of the first base piece 43 on the opposite direction D2 side. The first protrusions 48 are provided for inserting the first base piece 43 into the housing 42 using a rod-shaped tool (not shown). The first convex portions 48 are disposed at both ends of the first base piece portion 43 in the width direction X1. A first elastic piece portion 44 is disposed between the first convex portions 48 and 48.

  The 1st elastic piece part 44 is provided in order to contact the said electroconductive part 3b by urging | biasing the electroconductive part 3b of the LED board 3 elastically. The lateral width (length in the width direction X1) of the first elastic piece portion 44 is shorter than the lateral width of the first base piece portion 43, and the first elastic piece portion is located at the center position in the width direction of the first base piece portion 43. 44 is arranged.

  The first elastic piece portion 44 is a so-called curl spring type elastic piece portion that is smoothly curved as a whole. The first elastic piece portion 44 is connected to the connecting portion 47 via the first base piece portion 43. The first elastic piece 44 is bent in a U shape from the first base piece 43 and extends in the insertion direction D1, and is a base end of the first elastic piece 44, that is, the first elastic piece. The connecting portion between the portion 44 and the first base piece portion 43 can be elastically bent using the connecting portion as a fulcrum.

  The first elastic piece portion 44 is curled so that the proximal end portion is convexly curved in the opposite direction D2, and the intermediate portion is formed in a mountain shape that is convex toward the second elastic piece portion 46. Yes. Of the first elastic piece portion 44, the peak portion of the mountain shape that protrudes toward the second elastic piece portion 46 is the first contact portion 51. The first contact portion 51 is in direct contact with the conductive portion 3 b of the one end portion 3 a of the LED substrate 3.

  The second base piece 45 supports the second elastic piece 46 and is provided as a portion that is continuous with the connecting portion 47 and is fixed to the housing 42. The second base portion 12 is formed in a shape symmetrical to the first base portion 11 in the height direction Z1. More specifically, the 2nd base piece part 45 is formed in the substantially rectangular flat plate shape extended in parallel with the LED board 3, and is elongated in the length direction Y1. Of the second base piece 45, the end of the insertion direction D1 side has a shorter length in the width direction X1 than the portion opposite to the insertion direction D1. Of the second base piece 45, second convex portions 49 are formed at the end on the opposite direction D2 side. The second protrusions 49 and 49 are provided for inserting the second base piece 45 into the housing 42 using a rod-shaped tool (not shown). The 2nd convex parts 49 and 49 are arrange | positioned in the 2nd base piece part 45 at the both ends of the width direction X1. A second elastic piece portion 46 is disposed between the second convex portions 49 and 49.

  The second elastic piece portion 46 is provided to come into contact with the second connection portion 15 by elastically biasing the second connection portion 15 of the relay substrate 5. The second elastic piece portion 46 is formed in a shape symmetrical to the first elastic piece portion 44 in the height direction Z1. More specifically, the lateral width (the length in the width direction X1) of the second elastic piece portion 46 is shorter than the lateral width of the second base piece portion 45, and is at the center position in the width direction of the second base piece portion 45. The second elastic piece 46 is arranged.

  The second elastic piece portion 46 is a so-called curl spring type elastic piece portion that is smoothly curved as a whole. The second elastic piece portion 46 is connected to the connecting portion 47 via the second base piece portion 45. The second elastic piece portion 46 is bent in a U shape from the second base piece portion 45 and extends in the insertion direction D1, and is the base end portion of the second elastic piece portion 46, that is, the second elastic piece. The connecting portion between the portion 46 and the second base piece portion 45 can be elastically bent using the connecting portion as a fulcrum.

  The second elastic piece portion 46 is curled so that the proximal end portion is convexly curved in the opposite direction D <b> 2, and the intermediate portion is formed in a mountain shape that is convex toward the first elastic piece portion 44. Yes. Of the second elastic piece portion 46, the peak portion of the mountain shape that protrudes toward the first elastic piece portion 44 is the second contact portion 52. The second contact portion 52 is in direct contact with the second connection portion 15 of the second base portion 12 of the relay substrate 5.

  Referring to FIG. 5, FIG. 8A and FIG. 8B, the connecting portion 47 includes a first base piece portion 43 (first contact portion 51) and a second base piece portion 45 (second contact portion 52). ). The connecting portion 47 is arranged so as to be orthogonal to the width direction X1, and looks the thinnest when viewed from the length direction Y1. The connecting portion 47 is formed in a rectangular plate shape elongated in the height direction Z1.

  The connecting portion 47 is disposed at the end of the contact 41 on the insertion direction D1 side, and the narrow portion of the first base piece portion 43 and the narrow portion of the second base piece portion 45 are arranged. Connected to the part. With the above configuration, the connecting portion 47 extends so as to be orthogonal to the first base piece portion 43 and the second base piece portion 45. Moreover, the connection part 47 is arrange | positioned so that the position of the width direction X1 may differ from the 1st elastic piece part 44 and the 2nd elastic piece part 46. FIG.

  From the intermediate part of the connection part 47 in the height direction Z1, the 3rd convex part 50 protrudes in the opposite direction D2. The 3rd convex part 50 is provided in order to insert the contact 41 in the housing 42 using a tool (not shown). The third convex portion 50 is formed in a substantially rectangular plate shape parallel to the connecting portion 47. As shown in FIG. 8C, the tip of the third convex portion 50 is located on the insertion direction D1 side with respect to the tips of the first convex portion 48 and the second convex portion 49.

  The third convex portion 50 is disposed between the first elastic piece portion 44 and the second elastic piece portion 46 in the height direction Z1. A space for arranging the LED substrate 3 is formed between the third convex portion 50 and the first elastic piece portion 44, and the relay is provided between the third convex portion 50 and the second elastic piece portion 46. A space for arranging the substrate 5 is formed.

  Referring to FIG. 5, the housing 42 is a single member. That is, the housing 42 is integrally formed using a single material. The housing 42 is provided as a member that accommodates the contact 41, holds the one end 3 a as a part of the LED board 3, and holds the second base part 12 as a part of the relay board 5. . In addition, the housing 42 is provided as an insulating member that accommodates the contact 41 to increase the insulating distance (creeping distance) between the chassis body made of aluminum and the contact 41.

  The housing 42 is formed by injection molding the synthetic resin as an insulating material. The housing 42 is inserted into the connector insertion hole 2c and is held by the chassis main body 2a, and is disposed in the vicinity of the chassis peripheral wall 2b. Further, the housing 42 is configured such that the LED substrate 3 and the relay substrate 5 that are displaced in the insertion direction D1 with respect to the housing 42 can be inserted.

  The housing 42 includes a rectangular parallelepiped block-shaped housing main body 53, and a flange portion 54 and a protruding portion 55 that protrude from the outer periphery of the housing main body 53. The housing body 53 is inserted into the connector insertion hole 2c along the height direction Z1. Further, approximately half of the housing main body 53 in the height direction Z1 is disposed on the front surface 2d side of the chassis main body 2a, and the remaining half is disposed on the back surface 2e side of the chassis main body 2a.

  The housing main body includes a front wall 56, an outer peripheral wall 57, a rear wall 58, a first housing part 59, and a second housing part 60. The front wall 56 extends in a direction orthogonal to the insertion direction D1.

  With reference to FIGS. 5 and 6, the outer peripheral wall 57 is provided as a surrounding member that surrounds the periphery of the contact 41, and is provided as a connecting member that connects the front wall 56 and the rear wall 58. The outer peripheral wall 57 is formed in a cylindrical shape (in this embodiment, a rectangular cylindrical shape) surrounding the contacts 41, 41, and includes a first side wall 61, a second side wall 62, a third side wall 63, and a fourth side wall as four side walls. 4 side walls 64 are included.

  The first side wall 61 is provided as an upper wall of the housing main body 53, is disposed on the surface 2d side with respect to the chassis main body 2a, and is formed in a rectangular shape when viewed from the height direction Z1. The first side wall 61 covers the contacts 41, 41, the one end portion 3a of the LED substrate 3, and the second base portion 12 of the relay substrate 5 from one side in the height direction Z1. The second side wall 62 is provided as a lower wall of the housing main body 53, is disposed on the back surface 2e side with respect to the chassis main body 2a, and is formed in a rectangular shape when viewed from the height direction Z1. The second side wall 62 covers the contacts 41, 41, the second base portion 12 of the relay substrate 5, and the one end portion 3a of the LED substrate 3 from the other side in the height direction Z1.

  The third side wall 63 is provided as a lateral wall of the housing body 53. The third side wall 63 is formed in a rectangular shape when viewed from the width direction X1, and is inserted through the connector insertion hole 2c. The third side wall 63 covers the contacts 41 and 41, the one end portion 3a of the LED substrate 3, and the second base portion 12 of the relay substrate 5 from one side in the width direction X1.

  The fourth side wall 64 is provided as a horizontal wall of the housing main body 53, and constitutes a pair of horizontal walls of the housing main body 53 in cooperation with the third side wall 63. The fourth side wall 64 covers the contacts 41 and 41, the one end portion 3a of the LED substrate 3, and the second base portion 12 of the relay substrate 5 from the other side in the width direction X1.

  The rear wall 58 is configured to cover a space in the housing main body 53 when the housing main body 53 is viewed from the opposite direction D2. As a result, the rear wall 58 lengthens the insulation distance (creeping distance) between the chassis peripheral wall 2b (see FIG. 1) and the contacts 41, 41. The rear wall 58 is formed in a rectangular shape when viewed from the opposite direction D2, and is continuous with the first to fourth side walls 61, 62, 63, 64 of the outer peripheral wall 57, and is inserted through the connector insertion hole 2c. doing.

  The rear wall 58 is disposed on the insertion direction D1 side with respect to the first housing portion 59 and the second housing portion 60, and covers the first housing portion 59 and the second housing portion 60 when viewed from the opposite direction D2. Yes. The rear wall 58 covers the contacts 41, 41, the LED substrate 3, and the relay substrate 5 from one side in the length direction Y1. Thereby, when the housing main body 53 is viewed from the opposite direction D2, the rear wall 58 covers the contacts 41, 41, the LED substrate 3, and the relay substrate 5.

  With the above configuration, the housing main body 53 includes the first opening 65 as an opening continuous with the space in the housing 42 only in the front wall 56 among the front wall 56, the outer peripheral wall 57, and the rear wall 58. And the 2nd opening part 66 is formed. The contacts 41 and 41 can be inserted into the housing 42 through the first opening 65 and the second opening 66. Further, the LED substrate 3 and the relay substrate 5 can be inserted into the first housing portion 59 and the second housing portion 60 from the first opening portion 65 and the second opening portion 66.

  The first opening 65 is provided for inserting the contact 41 into the housing 42 when the first connector 4 is manufactured. The first opening 65 is provided to receive the LED substrate 3 that is displaced along the insertion direction D <b> 1 with respect to the housing 42 in the first housing portion 59. The first opening 65 is disposed on the surface 2d side of the chassis body 2a and opens in the opposite direction D2. The first opening 65 is provided at one end of the first housing part 59 formed in the housing main body 53, and the one end part 3 a of the LED substrate 3 inserted into the first opening 65 is the first housing part 59. Is housed.

  The first housing portion 59 is provided as a housing portion that houses one end portion 3 a of the LED substrate 3 and part of the contacts 41 and 41. The first housing portion 59 extends from the first opening 65 along the insertion direction D1 and forms a space in the housing body 53. The first housing portion 59 includes an LED substrate housing portion 67 for housing the LED substrate 3, first fixing portions 68 and 68 for fixing the first base piece portions 43 and 43 of the contacts 41 and 41, and a first fixing portion. First intermediate portions 69, 69 disposed between the portions 68, 68 and the LED substrate housing portion 67.

  The LED board housing portion 67 is provided to house the one end 3 a of the LED board 3. The LED substrate housing portion 67 is formed in a shape corresponding to the shape of the one end portion 3 a of the LED substrate 3. That is, the LED board housing portion 67 is formed in a shape that is slightly longer in the height direction Z1 than the thickness of the LED board 3 and has a rectangular shape when viewed from the height direction Z1. Yes. A first support portion 71 and a third support portion 73 are provided on a pair of facing surfaces of the LED substrate housing portion 67 that face each other in the height direction Z1.

  The 1st support part 71 is provided as a flat surface, and is located on the same plane as the surface 2d of the chassis main body 2a (it is lined up flush). The first support portion 71 faces the first contact portions 51, 51 of the contacts 41, 41 in the height direction Z1, and the first contact portions 51, 51 of the contacts 41, 41, the second contact portions 52, 52. The first support portion 71 sandwiches one end portion 3 a of the LED substrate 3 accommodated in the LED substrate accommodation portion 67 of the first accommodation portion 59 in cooperation with the first elastic piece portions 44 and 44. With the above configuration, the first support portion 71 is provided as a member that supports the LED substrate 3 and suppresses the force from the relay substrate 5 from acting on the first elastic piece portion 44. Further, the first support portion 71 positions the LED substrate 3 with respect to the first elastic piece portions 44, 44, particularly in the height direction Z <b> 1, and the LED substrate 3 is attached to the first base piece portions 43, 43. On the other hand, excessive separation is regulated. Thereby, it is suppressed that the contact pressure between the 1st elastic piece parts 44 and 44 and the relay conductive part 9 of LED board 3 becomes small.

The third support portion 73 is provided as a plane parallel to the first support portion 71, and the first support portion 71 is provided.
And the third support portion 73 sandwich the one end portion 3a. First intermediate portions 69 and 69 are formed in part of the third support portion 73. The third support portion 73 positions the LED substrate 3 with respect to the first elastic piece portions 44, 44, particularly in the height direction Z <b> 1, and the LED substrate 3 is excessively close to the first base portion 11. To regulate. Thereby, it is suppressed that the 1st elastic piece parts 44 and 44 are pressed against LED board 3 too strongly. The 1st fixing | fixed part 68,68 is arrange | positioned at the 1st side wall 61 side with respect to the LED board accommodating part 67 which has said structure.

  FIG. 9 is a side view of the housing 42 in a single product state, and shows the housing 42 as viewed from the front wall 56 side along the insertion direction D1. As shown in FIGS. 5, 6, and 9, the first fixing portions 68 are formed in the same shape as each other, and are spaced apart in the width direction X <b> 1. Each first fixing portion 68 has a flat rectangular shape elongated in the width direction X1 when viewed from the front wall 56 side. Each first fixing portion 68 has a uniform cross-sectional shape perpendicular to the insertion direction D1 from the first opening 65 to a middle portion in the insertion direction D1. Also. Each first fixing portion 68 is provided with a stepped portion 75 in the middle in the insertion direction D1. By providing the stepped portion 75, each first fixing portion 68 is narrower in the width direction X1 in the portion from the middle to the back than the portion on the first opening 65 side. .

  The first base piece 43 of the contact 41 is inserted through each first fixing portion 68. Of each first base piece 43, the narrow portion (see FIG. 8A) is accommodated in the back side in the insertion direction D1 with respect to the step portion 75, and the wide portion is the step portion 75. Is accommodated on the opposite direction D2 side. The thickness (the thickness in the height direction Z1) of each first fixing portion 68 is the same as or slightly narrower than the thickness of the first base piece portion 43. The fixing portion 68 is press-fitted and fixed.

  The first intermediate portions 69 and 69 are arranged so as to communicate the first fixing portions 68 and 68 with the LED board housing portion 67. The lateral width (length in the width direction X1) of the first intermediate portions 69 and 69 is the same as the lateral width of the narrow portion of the first fixed portions 68 and 68.

  The first elastic pieces 44 and 44 of the contacts 41 and 41 are arranged in the first intermediate parts 69 and 69. Each first intermediate portion 69 forms a space for the first elastic piece portion 44 to be elastically displaced.

  The second opening 66 is provided to insert the contact 41 into the housing 42 in cooperation with the first opening 65 when the first connector 4 is manufactured. The second opening 66 is provided in order to receive the relay substrate 5 that is displaced along the insertion direction D <b> 1 with respect to the housing 42 in the second accommodating portion 60. The second opening 66 is disposed on the back surface 2e side of the chassis body 2a and opens in the opposite direction D2. The second opening 66 is provided at one end of the second housing portion 60 formed in the housing body 53, and is spaced from the first opening 65 in the height direction Z1 orthogonal to the insertion direction D1. Has been. The second base portion 12 of the relay substrate 5 inserted into the second opening 66 is accommodated in the second accommodation portion 60.

  The second housing portion 60 is provided as a housing portion that houses the second base portion 12 of the relay substrate 5 and a part of the contacts 41 and 41. The second housing portion 60 extends from the second opening 66 along the insertion direction D <b> 1 and forms a space in the housing body 53. The second accommodating portion 60 includes a relay substrate accommodating portion 76 for accommodating the relay substrate 5, second fixing portions 77 and 77 for fixing the second base piece portions 45 and 45 of the contacts 41 and 41, and a second fixing. And second intermediate portions 78 and 78 disposed between the portions 77 and 77 and the relay board accommodating portion 76.

  The relay board housing portion 76 is provided for housing the second base portion 12 of the relay board 5. The relay substrate housing portion 76 is formed in a shape corresponding to the shape of the second base portion 12 of the relay substrate 5. That is, the length of the relay board accommodating portion 76 in the height direction Z1 is slightly longer than the thickness of the second base portion 12, and is formed in a rectangular shape when viewed from the height direction Z1. Has been. A second support part 72 and a fourth support part 74 are provided on a pair of facing surfaces of the relay board accommodating part 76 that face each other in the height direction Z1.

  The second support portion 72 is provided as a flat surface. The second support portion 72 is opposed to the second contact portions 52, 52 of the contacts 41, 41 in the height direction Z1, and the second contact portions 52, 52 of the contacts 41, 41, the first contact portions 51, 51. The second support portion 72 sandwiches the second base portion 12 of the relay substrate 5 accommodated in the relay substrate accommodation portion 76 of the second accommodation portion 60 in cooperation with the second elastic piece portions 46 and 46. Yes. With the above configuration, the second support portion 72 is provided as a member that supports the relay substrate 5 and suppresses the force from the relay substrate 5 from acting on the first elastic piece portions 41 and 41. Further, the second support portion 72 positions the relay substrate 5 with respect to the second elastic piece portions 46, 46, in particular, the positioning in the height direction Z1, and the relay substrate 5 is attached to the second base piece portions 45, 45. On the other hand, excessive separation is regulated. Thereby, it is suppressed that the contact pressure between the 2nd elastic piece parts 46 and 46 and the 2nd contact parts 15 and 15 of the relay substrate 5 becomes small.

  The fourth support part 74 is provided as a surface parallel to the second support part 72, and the second base part 12 of the relay substrate 5 is sandwiched between the second support part 72 and the fourth support part 74. Second intermediate portions 78 and 78 are formed in part of the fourth support portion 74. The fourth support portion 74 positions the relay substrate 5 with respect to the second elastic piece portions 46, 46, particularly in the height direction Z 1. The relay substrate 5 is positioned with respect to the second base piece portions 45, 45. Restricting excessive proximity. Thereby, it is suppressed that the 2nd elastic piece parts 46 and 46 are pressed too strongly by the 2nd connection parts 15 and 15 of the relay board | substrate 5. FIG. The second fixing portions 77 and 77 are arranged on the second side wall 62 side with respect to the relay board housing portion 76 having the above-described configuration.

  The second fixing portions 77 are formed in the same shape as each other, and are spaced apart in the width direction X1. Each second fixing portion 77 has a flat rectangular shape elongated in the width direction X1 when viewed from the front wall 56 side. Each second fixing portion 77 has a uniform cross-sectional shape orthogonal to the insertion direction D1 from the second opening 66 to a middle portion in the insertion direction D1. Each second fixing portion 77 is provided with a stepped portion 79 in the middle of the insertion direction D1. By providing this stepped portion 79, each second fixing portion 77 is narrower in the width direction X1 in the portion from the middle to the back than the portion on the second opening 66 side. .

  The second base pieces 45 and 45 of the contacts 41 and 41 are inserted through the second fixing parts 77 and 77. Of each second base piece 45, the narrow portion (see FIG. 8A) is accommodated on the back side in the insertion direction D <b> 1 with respect to the step portion 79, and the wide portion is the step portion 79. Is accommodated on the opposite direction D2 side. The thickness of each second fixing portion 77 (thickness in the height direction Z1) is the same as or slightly narrower than the thickness of the second base piece 45, and the second base piece 45 has the second It is press-fitted and fixed to the fixing portion 77.

  The second intermediate parts 78 and 78 are arranged so as to communicate the second fixing parts 77 and 77 with the relay board housing 76. The lateral width (length in the width direction X1) of the second intermediate portions 78, 78 is the same as the lateral width of the narrow portion of the second fixed portions 77, 77. In the second intermediate portions 78, 78, the second elastic piece portions 46, 46 of the contacts 41, 41 are arranged. Each second intermediate portion 78 forms a space for elastically displacing the second elastic piece portion 46.

  The housing main body 53 includes a partition wall portion 80 disposed between the first housing portion 59 and the second housing portion 60. The partition wall portion 80 is inserted through the connector insertion hole 2c and extends to the front surface 2d side and the back surface 2e side of the chassis body 2a. The partition wall portion 80 is provided with a facing portion 81 that faces the chassis body 2a in a direction parallel to the insertion direction D1. The facing portion 81 is formed by a portion of the partition wall portion 80 that is continuous with the first housing portion 59 in the height direction Z1. A flange portion 54 is formed at a position adjacent to the facing portion 81 in the height direction Z1.

  The flange portion 54 is provided as a member that closes the connector insertion hole 2c in cooperation with the housing main body 53, and is provided as a member for fixing the housing main body 53 to the chassis main body 2a. The flange portion 54 protrudes from the outer surface of each of the front wall 56, the rear wall 58, the third side wall 63, and the fourth side wall 64 of the housing main body 53, and is in contact with the back surface 2e of the chassis main body 2a.

  FIG. 10 is a plan view of the first connector 4 attached to the chassis body 2a as viewed from the height direction Z1. As shown in FIGS. 6, 9, and 10, the flange portion 54 and the partition wall portion 80 (opposing portion 81) are formed with communication portions 82 and 82 that allow the first storage portion 59 and the second storage portion 60 to communicate with each other. ing. The same number of communication portions 82 and 82 as the number of contacts 41 (two in this embodiment) are provided. Each communicating portion 82 is provided to insert the connecting portion 47 and the third convex portion 50 of the contact 41.

  Each communication portion 82 is formed in a slit shape that is thin in the width direction X1 and long in the height direction Z1, and extends from the first accommodation portion 59 to the second accommodation portion 60 in the height direction Z1. Each communication portion 82 extends from one end of the flange portion 54 along the insertion direction D1 and extends to the back of each of the first storage portion 59 and the second storage portion 60.

  With the above configuration, the first contact portion 51, the second contact portion 52, and the connection portion 47 of each contact 41 correspond to the corresponding first accommodation portion 59, second accommodation portion 60, and communication along the insertion direction D <b> 1, respectively. Part 82 is housed. As described above, the position of the connecting portion 47 of the contact 41 is shifted with respect to the first contact portion 51 and the second contact portion 52 in the width direction X1. Accordingly, the first support portion 71 and the first contact portion 41 can be inserted into the housing main body 53 along the insertion direction D1 while facing the first contact portion 51 and the second contact portion 52 in the height direction Z1. Two support portions 72 can be provided.

  FIG. 11 is a side view of the lighting device 1 as viewed along the width direction X1, and a part thereof is broken away. Referring to FIGS. 10 and 11, the housing 42 is provided with a lock portion 83 for removably locking the housing 42 to the chassis body 2a. The lock portion 83 includes the flange portion 54 described above, and a plurality of protrusion portions 55 arranged so as to face the flange portion 54 in the height direction Z1. In the present embodiment, the protrusions 55 are block-shaped small piece members, and for example, four protrusions 55 are provided.

  Two protrusions 55 protrude from the outer surface of the third side wall 63 and are arranged apart from each other in the length direction Y1. In addition, two protrusions 55 protrude from the outer surface of the fourth side wall 64 and are arranged apart from each other in the length direction Y1. Each protrusion 55 has a first contact surface 84 on one side facing the flange portion 54 side. Each first contact surface 84 is in surface contact with the surface 2d of the chassis body 2a at the peripheral edge of the connector insertion hole 2c.

  The flange portion 54 is opposed to each protrusion 55 in the height direction Z1. A second contact surface 85 is formed on one side surface of the flange portion 54 facing the chassis main body 2a. The second contact surface 85 is in surface contact with the back surface 2e of the chassis body 2a at the peripheral edge of the connector insertion hole 2c. The second contact surface 85 of the lock portion 83 and each first contact surface 84 cooperate to sandwich the chassis body 2a. The distance between the first contact surface 84 and the second contact surface 85 in the height direction Z1 is slightly narrower than the thickness of the chassis body 2a. Thereby, the lock part is frictionally coupled to the chassis main body 2a, and the housing 42 is prevented from being inadvertently displaced with respect to the connector insertion hole 2c.

  Further, the first support portion 71 is arranged on the same plane as the first contact surface 84 (is flush). Thereby, when the chassis main body 2a is clamped by the lock portion 83, the first support portion 71 and the surface 2d of the chassis main body 2a can be arranged on the same plane. Therefore, the LED substrate 3 whose one end portion 3a is supported by the first support portion 71 is in surface contact with the surface 2d of the chassis body 2a.

  The peripheral edge portion of the connector insertion hole 2 c has a coupling protrusion 86 that is coupled to the lock portion 83 by being sandwiched by the lock portion 83. For example, two coupling protrusions 86 are provided on one edge portion facing the third side wall 63 among the edge portions of the connector insertion hole 2c, and are arranged separately in the length direction Y1. On the other hand, it protrudes to the third side wall 63 side. In addition, for example, two coupling protrusions 86 are provided on one edge portion of the edge portion of the connector insertion hole 2c facing the fourth side wall 64, and are arranged apart from each other in the length direction Y1. It protrudes toward the fourth side wall 64 with respect to the edge.

  With the above configuration, each protrusion 55 of the housing 42 is displaced in a direction parallel to the insertion direction D1 (the length direction Y1) with respect to each coupling protrusion 86, so that the position in contact with the coupling protrusion 86 and the coupling It can be displaced to a position away from the protrusion 86.

  Next, the assembly work of the first connector 4 will be described. First, as shown in FIG. 12A, a single housing 42 and contacts 41 and 41 are prepared. And the 3rd convex part 50 of one contact 41 is hold | gripped with the tool 87, and one contact 41 is displaced toward the housing 42 in the insertion direction D1.

  As a result, the contact 41 is inserted into the housing 42. That is, as shown in FIG. 12B, the first base piece portion 43 and the first elastic piece portion 44 of the contact 41 are accommodated in the first accommodation portion 59. Further, the second base piece 45 and the second elastic piece 46 of the contact 41 are accommodated in the second accommodation portion 60.

  At this time, even when the third convex portion 50 is completely inserted into the housing main body 53, the first convex portion 48 and the second convex portion 49 of the contact 41 are still protruding from the housing main body 53. Therefore, the tool 88 presses the first convex portion 48 and the second convex portion 49 of the contact 41 along the insertion direction D1. As a result, the contact 41 is completely accommodated in the housing body 53. As described above, the tool 88 presses the third convex portion 50 and then presses the first convex portion 48 and the second convex portion 49, whereby the first at a position far from the third convex portion 50. The elastic piece portion 44 and the second elastic piece portion 46 can be reliably accommodated in the housing body 53.

  The other contact 41 is also assembled to the housing 42 in the same manner as the one contact 41, whereby the first connector 4 is completed.

  Next, assembly of the lighting device 1 will be described. As shown in FIG. 13, the housing 42 of the first connector 4 is inserted into the connector insertion hole 2c from the back surface 2e side of the chassis main body 2a, and then the first connector 4 assembled in the above procedure. 1 The connector 4 is displaced in the insertion direction D1. As a result, the lock portion 83 of the housing 42 holds the chassis main body 2a and is locked to the chassis main body 2a.

  Thereafter, the one end 3 a of the LED substrate 3 is inserted into the first opening 65 of the housing 42 along the insertion direction D <b> 1 and accommodated in the first accommodating portion 59. The first connector 4 is electrically and mechanically connected to the LED substrate 3 by performing this operation on the first connector 4 locked in each connector insertion hole 2c. Next, the second base portion 12 of the relay substrate 5 is inserted into the second opening 66 of each first connector 4 along the insertion direction D <b> 1 and accommodated in the second accommodation portion 60. In FIG. 13, only one first connector 4 and one LED substrate 3 are shown. Thereby, the relay substrate 5 is electrically and mechanically connected to each first connector 4 at a time. Thereafter, as shown in FIG. 4, the second connector 26 of the relay board 5 and the third connector 31 of the driver board 6 are connected.

  On the other hand, when the lighting apparatus 1 is disassembled, the work is performed in the reverse procedure. Specifically, the second connector 26 is removed from the third connector 31 of the driver board 6. Next, as shown in FIG. 13, the second base portion 12 of the relay board 5 is collectively removed from the first connectors 4 by displacing the relay board 5 along the opposite direction D2. Next, each LED substrate 3 is removed from the first connector 4 by being displaced along the opposite direction D2. Next, by displacing each first connector 4 in the opposite direction D2 with respect to the chassis main body 2a, the holding of the chassis main body 2a by the lock portion 83 of the housing 42 is released, and the first connector 4 is extracted from the connector insertion hole 2c.

  As described above, according to the first connector 4 of the lighting device 1, the LED substrate 3 is accommodated in the first accommodating portion 59 through the first opening 65 along the insertion direction D1. The relay substrate 5 is accommodated in the second accommodating portion 60 through the second opening 66 along the insertion direction D1. In this way, the LED board 3 and the contacts 41, 41 are connected by the simple work of inserting the LED board 3 and the relay board 5 along the insertion direction D1, and the relay board 5 and the contacts 41, 41. Connection work can be completed. Therefore, the troublesome work of soldering the LED board 3 and the relay board 5 to the contacts 41, 41 is unnecessary, the work of connecting the first connector 4 and the LED board 3, and the first connector 4 and the relay board 5. Can be easily connected. The housing 42 is composed of a single part. Thereby, the number of parts which accommodate the contacts 41 and 41 as a conductive member can be minimized. Further, since no solder is required for the connection between the contacts 41 and 41 and the LED substrate 3 and the connection between the contacts 41 and 41 and the relay substrate 5, there is no conduction failure caused by cracks in the solder portion. The conduction state between 41 and each of the substrates 3 and 5 can be reliably maintained. Further, the rear wall 58 can cover the LED substrate 3 and the relay substrate 5. Thereby, even when components other than the first connector 4 such as the chassis peripheral wall 2b are disposed in the immediate vicinity of the rear wall 58 on the insertion direction D1 side, the insulation distance between the contacts 41 and 41 and the chassis peripheral wall 2b ( A sufficient creepage distance can be secured. Thereby, the insulation distance between the contacts 41 and 41 and the chassis peripheral wall 2b can be sufficiently secured while the housing 42 is downsized.

  Therefore, according to the 1st connector 4 of the illuminating device 1, the connection operation | work with the board | substrates 3 and 5 is easy, the number of parts of the housing 42 which accommodates the contacts 41 and 41 can be reduced, and a conduction | electrical_connection state can be maintained reliably. In addition, it is possible to secure a sufficient distance for insulation while realizing miniaturization.

  Moreover, according to the 1st connector 4 of the illuminating device 1, the arrangement place of the LED board 3 can be prescribed | regulated by the 1st support part 71. FIG. Thereby, the quantity which the LED board 3 elastically presses the 1st elastic piece part 44 can be made substantially constant. Therefore, it can suppress that an individual difference arises in the contact pressure between the LED board 3 and the 1st contact parts 51 and 51, and the conduction | electrical_connection state between the LED board 3 and the 1st contact parts 51 and 51 is ensured more reliably. Can be maintained.

  Further, according to the first connector 4 of the lighting device 1, the location of the relay substrate 5 can be defined by the second support portion 72. Thereby, the amount by which the relay substrate 5 elastically presses the second elastic piece portion 46 can be made substantially constant. Therefore, it is possible to suppress the occurrence of individual differences in the contact pressure between the relay substrate 5 and the second contact portion 52, and it is possible to more reliably maintain the conduction state between the relay substrate 5 and the second contact portion 52.

  Further, according to the first connector 4 of the lighting device 1, the one end 3 a is in the first housing portion 59 in a state where the chassis main body 2 a is sandwiched between the first contact surface 84 and the second contact surface 85 of the first connector 4. The LED board 3 inserted into the can be brought into direct contact with the surface of the chassis body 2a. Thereby, the heat | fever of LED7 can be smoothly transmitted to the chassis main body 2a via the LED board 3. FIG. Therefore, the heat discharge performance of the LED 7 can be further increased.

  Moreover, according to the 1st connector 4 of the illuminating device 1, the contact 41 can be inserted in the housing 42 along the insertion direction D1. Thereby, the 1st opening part 65 and the 2nd opening part 66 for inserting the LED board 3 and the relay board | substrate 5 can also be used as an insertion port for inserting the contacts 41 and 41. FIG. Therefore, there is no need to provide an insertion port for inserting the contacts 41, 41 into the housing 42 separately from the first opening 65 and the second opening 66, and the number of openings formed in the housing 42 can be reduced. As a result, it is possible to secure a larger insulation distance for the contact 41.

  Further, according to the first connector 4 of the lighting device 1, the first support portion 71 and the second support portion 72 of the housing 42 are disposed between the first contact portions 51, 51 and the second contact portions 52, 52. ing. Thereby, the LED board 3 and the relay board | substrate 5 can be arrange | positioned closely between the 1st contact parts 51 and 51 and the 2nd contact parts 52 and 52. FIG. Thereby, the space which the 1st connector 4, LED board 3, and the relay board | substrate 5 occupy can be made smaller.

  Moreover, according to the 1st connector 4 of the illuminating device 1, the housing 42 contains the outer peripheral wall 57 which connects the front wall 56 and the rear wall 58 in which the 1st opening part 65 and the 2nd opening part 66 were formed. The outer peripheral wall 57 is formed in a cylindrical shape surrounding the contacts 41 and 41. Thereby, the insulation distance between the chassis peripheral wall 2b of the chassis 2 and the contacts 41 and 41 can be further increased.

  Moreover, according to the 1st connector 4 of the illuminating device 1, the locking part 83 for locking the housing 42 to the chassis main body 2a is provided. Thereby, the state where the housing 42 is held by the chassis 2 can be reliably maintained.

  Moreover, according to the 1st connector 4 of the illuminating device 1, each contact 41 is extended in the opposite direction D2 opposite to the insertion direction D1 from the connection part 47, and contains the 3rd convex part 50 which can be engaged with a tool. The contact 41 can be inserted into the housing 42 by pressing the third protrusion 50 with a tool. Accordingly, the contact 41 can be easily inserted into the housing 42 by a simple operation of holding the third convex portion 50 extending from the connecting portion 47 with a tool and displacing it in the insertion direction D1.

  Furthermore, according to the 1st connector 4 of the illuminating device 1, each contact 41 has the 1st base piece part 43 which connects the connection part 47 and the 1st elastic piece part 44, the connection part 47, and the 2nd elastic piece part 46. A first base 48 and a second base 49 extending in the opposite direction D2 opposite to the insertion direction D1 from each of the first base piece 43 and the second base piece 45, including. As a result, the first protrusion 48 and the second protrusion 49 can be pressed by the tool 88 after the contact 41 is accommodated in the housing 42 while the third protrusion 50 extending from the connecting portion 47 is held by the tool 87. it can. Thereby, the 1st contact part 51 and the 2nd contact part 52 can be arrange | positioned in the regular position deep inside the 1st accommodating part 59 and the 2nd accommodating part 60, respectively.

  Further, according to the lighting device 1, the current from the driver board 6 flows to the LED board 3 via the relay board 5 and the first connector 4, and further flows to the LED 7. Thus, the relay substrate 5 is interposed between the LED substrate 3 and the driver substrate 6. As a result, even if the relative position between the LED board 3 and the driver board 6 is slightly deviated from the normal design position, this position deviation can be absorbed between the relay board 5 and the driver board 6. And it can absorb between the relay substrate 5 and the first connector 4. As a result, the driver board 6 can be reliably electrically connected to the LED board 3 via the relay board 5 and the first connector 4. Further, since the relay board 5 is arranged, it is not necessary to arrange the driver board 6 in the vicinity of the LED board 3. Thereby, the freedom degree of the layout of the driver board | substrate 6 can be made high, and by extension, the freedom degree of the layout of the components in the illuminating device 1 can be made high.

  Therefore, according to the illuminating device 1, electrical connection can be reliably performed between the LED board 3 on which the LED 7 is mounted and the driver board 6 for driving the LED 7, and the degree of freedom in layout. It is possible to provide a lighting device 1 with high height.

  For example, in the configuration disclosed in FIG. 1 of Patent Document 1, an LED driver board and a plurality of LED boards are electrically connected by wiring. A plurality of wirings are provided corresponding to the number of LED substrates. Each of the plurality of wirings is connected from the LED driver board to a corresponding LED board through a connection hole formed in the chassis panel. For this reason, when assembling the LED backlight device, it is necessary to connect a plurality of wirings to a plurality of LED substrates, respectively, and there is a possibility that the connection partners of the wirings may be mistaken.

  On the other hand, according to the illuminating device 1, when the illuminating device 1 is assembled, the relative positions of the plurality of second connecting portions 15 of the relay substrate 5 are constant. Thereby, when connecting the several 2nd connection part 15 to the corresponding 1st connector 4, respectively, for example, a worker is the 1st other than the 1st connector 4 which is the original connection partner of the 2nd connection part 15. Incorrect connection to the connector 4 can be suppressed. In addition, since a plurality of electrical connectors can be connected to the relay board 5, the plurality of first connectors 4 can be connected to the driver board 6 at once. Thereby, the effort which concerns on the assembly of the illuminating device 1 can be decreased, and the number of parts of the illuminating device 1 can be decreased.

  Further, according to the lighting device 1, the plurality of first connection portions 14 are concentrated on the one end portion 11 a of the first base portion 11 of the base portion 8. Thereby, it is easy to perform an operation of electrically connecting the driver boards 6 collectively to the plurality of first connection portions 14.

  Further, according to the lighting device 1, the plurality of first connection portions 14 can be collectively connected to the driver board 6 by using the second connector 26. Therefore, the effort concerning the assembly of the lighting device 1 can be reduced.

  Further, according to the lighting device 1, the plurality of first connection portions 14 of the relay board 5 can be connected to the driver board 6 at a time with a simple operation of coupling the third connector 31 to the second connector 26. . Therefore, the effort concerning the assembly of the lighting device 1 can be reduced.

  Moreover, according to the illuminating device 1, the relay substrate 5 is a rigid substrate. Accordingly, it is easy to perform an operation of holding the relay board 5 and inserting the second base portion 12 of the relay board 5 into the first connector 4. Thereby, the relay board | substrate 5 can be attached to the some 1st connector 4 collectively. Thereby, the efficiency of the assembly operation of the lighting device 1 can be further increased.

  Further, according to the lighting device 1, the first connection portion 14 is disposed at the one end portion 11 a in the longitudinal direction of the first base portion 11. Thereby, it is easy to perform the attachment work of the third connector 31 to the second connector 26 connected to the first connection portion 14.

  Moreover, according to the illuminating device 1, the partition part 80 is provided between the 1st contact parts 51 and 51 and the 2nd contact parts 52 and 52, and the LED board 3 is the partition part 80 and the 1st contact part 51. The relay substrate 5 is disposed between the partition wall portion 80 and the second contact portion 52. Thereby, the force from the LED substrate 3 is received by the first support portion 71 provided in the partition wall portion 80, and the action on the second contact portion 52 is suppressed. Further, the force from the relay substrate 5 is received by the third support portion 73 provided in the partition wall portion 80, and is prevented from acting on the first contact portion 51. As a result, the tolerance (thickness variation) of the thickness of the LED substrate 3 can be suppressed from affecting the contact pressure between the second contact portion 52 and the relay substrate 5. Moreover, it can suppress that the tolerance of the thickness of the relay substrate 5 affects the contact pressure between the 1st contact part 51 and the LED board 3. FIG. As a result, it is possible to suppress variation in the contact pressure acting on the first contact portion 51 due to accumulation of variations in the thickness of the substrates 3 and 5, and accumulation of variation in thickness of the substrates 3 and 5. It can suppress that the contact pressure which acts on the contact part 52 varies.

  According to the lighting device 1, the relay board 5 is interposed between the driver board 6 and the first connector 4. Thereby, the heat from the driver board 6 can be made difficult to be transmitted to the LED board 3.

  FIG. 14 is a cross-sectional view showing a main part of an illuminating device 1A according to another embodiment of the present invention, showing a state in which the first connector 4A and the like are viewed from a direction orthogonal to the longitudinal direction of the LED substrate 3. Yes. In the following description, configurations different from those of the above-described embodiment will be mainly described, and the same configurations are denoted by the same reference numerals and description thereof will be omitted.

  FIG. 15 is a side view of the first connector 4A and shows a state where the LED board 3 and the relay board 5 are inserted. FIG. 16 is a perspective view of the first connector 4A. Referring to FIGS. 14, 15, and 16, the first connector 4A includes a contact 41A and a housing 42A that accommodates the contact 41A.

  Two contacts 41A are provided on the first connector 4A. The contacts 41A and 41A are spaced apart in the width direction X1. The positive electrode side contact 41A and the negative electrode side contact 41A have the same configuration. Accordingly, the positive side contact 41A (the right side contact 41A in FIG. 15) will be mainly described below, and the detailed description of the negative side contact 41A will be omitted.

  FIG. 17A is a perspective view of the contact 41A, and FIG. 17B is a side view of the contact. Referring to FIGS. 14 and 17A, the contact 41A is provided as a conductive member in which a plating layer is formed on the surface of a metal material. The contact 41A is formed by press molding and is made of a single member.

  The contact 41A is configured to sandwich the LED substrate 3 and the relay substrate 5 in the height direction Z1. The contact 41A includes a first base piece 43A, a first elastic piece 44A, a second base piece 45A, a second elastic piece 46A, and a connecting portion 47A.

  The first base piece 43A is provided as a portion that supports the first elastic piece 44A and is continuous with the connecting portion 47A. The first base piece portion 43A includes a first portion 97 that is elongated in the length direction Y1, and a second portion 98 that is elongated in the height direction Z1 from one end of the portion that is elongated in the length direction Y1. Yes. Of the first portion 97 of the first base piece portion 43A, the first elastic piece portion 44A is continuous with the end portion on the opposite direction D2 side.

  44 A of 1st elastic pieces are provided in order to contact the said electroconductive part 3b by urging | biasing the electroconductive part 3b of the LED board 3 elastically. The lateral width (length in the width direction X1) of the first elastic piece portion 44A is the same as the lateral width of the first base piece portion 43A.

  The second base piece 45A is provided as a portion that supports the second elastic piece 46A and continues to the connecting portion 47A. The second base piece 45A is formed in a shape symmetrical to the first base portion 43A in the height direction Z1. More specifically, the second base piece 45A includes a first portion 99 that is elongated in the length direction Y1, and a second portion 100 that is elongated in the height direction Z1 from one end of the portion that is elongated in the length direction Y1. And have. Of the first portion 99 of the second base piece portion 45A, the second elastic piece portion 46A is continuous with the end portion on the opposite direction D2 side.

  The second elastic piece portion 46 </ b> A is provided to contact the second connection portion 15 by elastically urging the second connection portion 15 of the relay substrate 5. The second elastic piece portion 46A is formed in a shape symmetrical to the first elastic piece portion 44A in the height direction Z1.

  Referring to FIG. 14, FIG. 17A and FIG. 17B, the connecting portion 47A is provided to connect the first base piece portion 43A and the second base piece portion 45A. The connecting portion 47A is formed in a U shape, that is, a groove shape when viewed from the width direction X1, and has a shape opened toward the insertion direction D1. The connecting portion 47A includes a portion parallel to the height direction Z1 and a pair of portions extending from both ends of the portion parallel to the height direction Z1 in the insertion direction D1. The pair of portions has connecting portion fixing portions 101 and 102 in the middle in the insertion direction D1, and the tip end in the insertion direction D1 is connected to the first base piece 43A and the second base piece 45A. It is continuous. The connecting portion fixing portions 101 and 102 are wider in the width direction X1 than the first base piece portion 43A and the second base piece portion 45A.

  The connecting portion 47A is disposed between the first elastic piece portion 44A and the second elastic piece portion 46A in the height direction Z1. A space for arranging the LED substrate 3 is formed between the connecting portion 47A and the first elastic piece portion 44A, and the relay substrate 5 is arranged between the connecting portion 47A and the second elastic piece portion 46A. A space for this is formed.

  Referring to FIGS. 14 and 16, the housing 42A includes a rectangular parallelepiped block-shaped housing main body 53A, and a flange portion 54A and a protruding portion 55 protruding from the outer periphery of the housing main body 53A. The housing main body 53A includes a front wall 56, an outer peripheral wall 57, a rear wall 58, a first housing portion 59A, a second housing portion 60A, and a partition wall portion 80A.

  A first opening 65A and a second opening 66A are formed in the front wall 56 of the housing main body 53A. The contacts 41A and 41A can be inserted into the housing 42A through the first opening 65A and the second opening 66A. Further, the LED board 3 and the relay board 5 can be inserted into the housing main body 53A from the first opening 65A and the second opening 66A.

  The first opening 65A is provided for inserting the contacts 41A and 41A into the housing 42A when the first connector 4A is manufactured. The first opening 65A is provided to receive the LED board 3 that is displaced in the insertion direction D1 with respect to the housing 42A in the housing 42A. The first opening 65A is disposed on the surface 2d side of the chassis body 2a and opens in the opposite direction D2. The first opening 65A is provided at one end of the first housing part 59A formed in the housing main body 53A, and the one end 3a of the LED substrate 3 inserted into the first opening 65A is the first housing part 59A. Is housed in.

  The first housing portion 59A is provided as a housing portion that houses one end portion 3a of the LED substrate 3 and part of the contacts 41A and 41A. The first housing portion 59A extends from the first opening 65A along the insertion direction D1, and forms a space in the housing main body 53A. Referring to FIGS. 14 and 15, the first housing portion 59A includes an LED substrate housing portion 67A for housing the LED substrate 3, and a first recess 111 that is recessed from the LED substrate housing portion 67A toward the partition wall portion 80A. , 111 and third recesses 113, 113 that are recessed from the LED substrate housing portion 67 </ b> A toward the first side wall 61. The first support portion 71A and the third support portion 73A are provided on a pair of facing surfaces facing each other in the height direction Z1 in the LED substrate housing portion 67A.

  71 A of 1st support parts are provided as a flat surface, and are located in parallel with the surface 2d of the chassis main body 2a. The first recesses 111 are formed by recessing a part of the first support portion 71A in the width direction X1. The third support portion 73A is provided as a surface parallel to the first support portion 71A, and third recesses 113 and 113 are formed in a part of the third support portion 73A in the width direction X1.

  The third recesses 113 are formed in the same shape as each other and are spaced apart in the width direction X1. Each of the third recesses 113 is formed in a rectangular shape when viewed from the front wall 56 side, and extends along the insertion direction D1 from the first opening 65A.

  The first recesses 111 and 111 are arranged side by side with the third recesses 113 and 113 in the height direction Z1. In the first recesses 111, 111, grooves 115, 115 extending from the first opening 65A along the insertion direction D1 are formed. The groove portions 115, 115 are formed wider than the portion of the first recesses 111, 111 that are continuous with the LED substrate housing portion 67A. In the groove portions 115, 115, the connecting portion fixing portions 101, 101 of the contacts 41A, 41A are press-fitted and fixed. With the above configuration, the connecting and fixing portions 101 and 101 of the contacts 41A and 41A are fixed to the first recesses 111 and 111, respectively. The first elastic pieces 44A and 44A of the contacts 41A and 41A are accommodated in the third recesses 113 and 113, respectively.

  The second opening 66A is provided to insert the contacts 41A and 41A into the housing 42A in cooperation with the first opening 65A when the first connector 4A is manufactured. The second opening 66A is provided to receive the relay board 5 that is displaced in the insertion direction D1 with respect to the housing 42A in the housing 42A. The housing 42A is disposed on the back surface 2e side of the chassis body 2a and opens in the opposite direction D2. The second opening 66A is provided at one end of the second accommodating portion 60A formed in the housing main body 53A, and is spaced apart from the first opening 65A in the height direction Z1 orthogonal to the insertion direction D1. Has been. The second base portion 12 of the relay board 5 inserted into the second opening 66A is accommodated in the second accommodating portion 60A.

  The second housing portion 60A is provided as a housing portion that houses the second base portion 12 of the relay substrate 5 and a part of the contacts 41A and 41A. The second housing portion 60A includes a relay substrate housing portion 76A for housing the relay substrate 5, second recesses 112 and 112 recessed from the relay substrate housing portion 76A toward the partition wall portion 80A, and the relay substrate housing portion 76A. 4th recessed part 114,114 recessed toward the 2nd side wall 62 side is included. A second support portion 72A and a fourth support portion 74A are provided on a pair of facing surfaces that face each other in the height direction Z1 in the relay substrate housing portion 76A.

  The second support portion 72A is provided as a flat surface. The second concave portions 112 and 112 are formed by recessing a part of the second support portion 72A in the width direction X1.

  The fourth support portion 74A is provided as a plane parallel to the second support portion 72A, and fourth recesses 114, 114 are formed in a part of the fourth support portion 74A in the width direction X1.

  The fourth recesses 114 and 114 are formed in the same shape as each other, and are arranged apart from each other in the width direction X1. Each of the fourth recesses 114, 114 is formed in a rectangular shape when viewed from the front wall 56 side, and extends from the second opening 66A in the insertion direction D1.

  The second recesses 112 and 112 are arranged side by side with the fourth recesses 114 and 114 in the height direction Z1. In the second recesses 112 and 112, grooves 116 and 116 extending from the second opening 66A along the insertion direction D1 are formed. The groove portions 116 and 116 are formed wider than the portion of the second recesses 112 and 112 that are continuous with the relay substrate housing portion 76A. In the groove portions 116, the connecting portion fixing portions 102, 102 of the contacts 41A, 41A are press-fitted and fixed. With the above configuration, the connecting and fixing portions 102 and 102 of the contacts 41A and 41A are fixed to the second recesses 112 and 112, respectively. The second elastic pieces 46A and 46A of the contacts 41A and 41A are accommodated in the fourth recesses 114 and 114, respectively.

  The partition wall portion 80A is inserted through the connector insertion hole 2c and extends to the front surface 2d side and the back surface 2e side of the chassis body 2a. The first concave portions 111 and 111 and the second concave portions 112 and 112 are provided on a pair of side surfaces facing the height direction Z1 in the partition wall portion 80A. In the partition wall portion 80A, the location where the first recesses 111, 111 and the location where the second recesses 112, 112 are provided are located on the insertion direction D1 side with respect to the front wall 56. The connecting portions 47A and 47A of the contacts 41A and 41A are fitted into the partition wall portion 80A. The partition wall portion 80A is provided with a facing portion 81A that faces the chassis body 2a in a direction parallel to the insertion direction D1. A flange portion 54A is formed at a position adjacent to the facing portion 81A in the height direction Z1. The flange portion 54A protrudes from the outer surface of each of the rear wall 58, the third side wall 63, and the fourth side wall 64 of the housing main body 53A, and is in surface contact with the surface 2d of the chassis main body 2a.

  With the above configuration, the first contact portions 51A and 51A, the second contact portions 52A and 52A, and the connecting portions 47A and 47A of the contacts 41A and 41A are displaced along the insertion direction D1 with respect to the housing 42A, respectively. Thus, it is accommodated in the housing 42A.

  The lock part 83A of the housing 42A includes the flange part 54A described above and a plurality of protrusions 55 arranged on the second side wall 62 side with respect to the flange part 54A. The flange portion 54A and the projection portion 55 cooperate to sandwich the chassis main body 2a.

  When the lighting device 1A is assembled, the housing 42A of the first connector 4A is inserted into the connector insertion hole 2c from the surface 2d side of the chassis main body 2a, and then the first connector 4A is displaced in the insertion direction D1. Thus, the lock portion 83A of the housing 42A sandwiches the chassis main body 2a and is locked to the chassis main body 2a. Other assembly operations are the same as those of the lighting device 1 (see FIG. 5).

  On the other hand, when disassembling the lighting device 1A, the first connector 4A is displaced in the opposite direction D2 with respect to the chassis body 2a, thereby releasing the holding of the chassis body 2a by the lock portion 83A of the housing 42A and inserting the connector. Remove from hole 2c. Other disassembly work is the same as that of the lighting device 1 (see FIG. 5).

  Also according to the modified example described above, the same effects as those of the above-described embodiment can be exhibited.

  FIG. 18 is a side view of the main part of still another embodiment of the present invention viewed from the width direction X1, and a part thereof is shown in cross section. In the present embodiment, a fourth connector 131 is used instead of the relay board 5 (see FIG. 11). The fourth connector 131 includes an insulating fourth housing 132 and a plurality of fourth contacts 133 held in the fourth housing 132.

  The fourth housing 132 is formed in a box shape. A part of the fourth housing 132 on the distal end side in the insertion direction D <b> 1 is an insertion portion 134 that is inserted into the housing 42. The insertion part 134 is removably inserted into the relay board accommodation part 76 of the second accommodation part 60 of the housing 42. The fourth contact 133 is a conductive member in which a plating layer is formed on the surface of a metal material, and is provided in the same number as the number of the second contacts 42 of each first connector 4 (2 in the present embodiment). In FIG. 18, only one fourth contact 133 among the fourth contacts 133 is illustrated. The fourth contacts 133 are respectively disposed in the fourth housing 132 and are in contact with the second contact portions 52 of the corresponding contacts 41.

  Each fourth contact 133 is electrically connected to a drive circuit 6 a (not shown in FIG. 18) of the driver board 6 via a covered electric wire 135. In the present embodiment, the configuration in which each fourth contact 133 and the drive circuit 6a are electrically connected via the covered electric wire 135 is described, but this need not be the case. For example, the fourth contact 133 may be directly and electrically connected to the drive circuit 6a.

  According to the present embodiment, the fourth connector 131 is in contact with the housing 132 including the insertion portion 134 that is inserted into the second housing portion 60, and the second contact portion 52 of the first connector 4 that is disposed in the insertion portion 134. Possible fourth contacts 133. Accordingly, the connection work between the first connector 4 and the fourth connector 131 can be completed by a simple work of inserting the fourth connector 131 into the first connector 4.

  Although a plurality of embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, the following modifications may be made.

(1) In the above-described embodiment, the configuration in which the relay board is a rigid board has been described as an example. However, the present invention is not limited to this. For example, the relay substrate may be a flexible substrate. In this case, the base portion of the relay substrate is formed by a flexible film-like member. When the relay substrate is a flexible substrate, an arrangement in which the relay substrate is bent can be employed. Thereby, the freedom degree of the layout of a relay board | substrate can be made higher.

(2) In the above-described embodiment, the configuration in which the second electrical connector is arranged at one end of the first base portion of the relay board has been described as an example. However, the present invention is not limited to this. For example, as shown in FIG. 19, the first connection portion 14 and the second connector 26 may be disposed in the middle portion of the first base portion 11 in the longitudinal direction. In this case, each 2nd connection part 15 and the 1st connection part 14 are electrically connected via the electroconductive part which is not shown in figure. In this case, the conductive portion can be extended from the first connection portion 14 (second connector 26) toward both sides of the first base portion 11 in the longitudinal direction. Therefore, since the number of conductive parts arranged in the width direction of the first base part 11 can be reduced, the first base part 11 can be made thinner in the width direction. As a result, further downsizing of the lighting device 1 can be realized.

(3) In the above-described embodiment, the configuration in which one relay board is provided has been described. However, the present invention is not limited to this. Two or more relay boards may be provided. For example, if the chassis is large and 10 LED boards are provided, a relay board may be provided for each of the five first connectors.

(4) In the above-described embodiment, the configuration in which the two contacts of the positive electrode side contact and the negative electrode side contact are arranged in each first connector has been described. However, the present invention is not limited to this. For example, one contact may be provided on the first connector, and the first connector may be disposed at both ends of the LED substrate. In this case, one first connector is provided as a positive connector, and the other first connector is provided as a negative connector. In addition, two relay boards are provided: a relay board connected to each first connector on the positive electrode side and a relay board connected to each first connector on the negative electrode side.

(5) In the above-described embodiment, the configuration in which the contact and the housing cooperate to sandwich the LED board and the relay board is described as an example, but the present invention is not limited to this. For example, the LED substrate may be sandwiched between the contacts. In this case, a portion of the contact that directly contacts the LED substrate is provided at a portion facing the first contact portion in the height direction. Further, the relay board may be sandwiched by the contacts. In this case, a portion of the contact that directly contacts the relay substrate is provided at a portion facing the second contact portion in the height direction.

(6) In the above-described embodiment, the outer peripheral wall surrounding the contact has been described as an example in which the contact is surrounded by the first side wall to the fourth side wall over the entire circumference. However, the present invention is not limited to this. For example, a through hole may be formed in at least one of the first side wall to the fourth side wall, and one, two, or three of the first to fourth side walls may be omitted.

(7) In the above-described embodiment, the configuration in which the second base portion of the relay board is inserted into the first connector has been described. However, the present invention is not limited to this. For example, a driver board may be inserted into the second housing portion of the first connector. In this case, the driver board constitutes a power supply member. One edge portion of the driver board is formed in a concavo-convex shape like the relay board, and the convex portion is housed in the second housing portion of the first connector.

  The present invention can be widely applied as an electrical connector that electrically connects a substrate on which a light emitting element is mounted and a power supply member for supplying power to the light emitting element.

DESCRIPTION OF SYMBOLS 1,1A Lighting device 2 Chassis 2d Chassis front surface 2e Chassis back surface 3 LED board (light emitting element board | substrate)
3b, 3c Conductive part 4, 4A First electrical connector 5 Relay board (feeding member, feeding board)
7 LED (light emitting element)
8 Base portion 41, 41A Contact 42, 42A Housing 44, 44A First elastic piece portion 46 Second elastic piece portion 47, 47A Connection portion 51 First contact portion
52 2nd contact part
58 Rear wall (wall)
59, 59A 1st accommodating part 60, 60A 2nd accommodating part 65, 65A 1st opening part 66, 66A 2nd opening part 71, 71A 1st support part 72, 72A 2nd support part 81, 81A Opposing part 82 Communication part 84 First contact surface
85 Second contact surface
131 4th electrical connector (feeding member)
D1 Insertion direction
Z1 height direction (direction perpendicular to the insertion direction)

Claims (5)

A lighting device comprising: a light emitting element substrate on which a light emitting element is mounted; a power supply member for supplying electric power to the light emitting element substrate; and a chassis partially disposed between the light emitting element substrate and the power supply member. An electrical connector for connecting the light emitting element substrate and the power feeding member,
An insulating housing made of a single member;
A conductive contact held by the housing;
The housing is
A first accommodating portion having a first opening into which the light emitting element substrate is inserted along a predetermined insertion direction and capable of accommodating a part of the light emitting element substrate;
The power supply member has a second opening that is spaced apart from the first opening with respect to a direction orthogonal to the insertion direction, and can accommodate a part of the power supply member. A second accommodating portion;
A wall portion disposed on the insertion direction side with respect to the first housing portion and the second housing portion, and covering the first housing portion and the second housing portion;
A facing portion facing the chassis in a direction parallel to the insertion direction;
Including
The contact is
A first contact portion disposed in the first housing portion so as to be in contact with a conductive portion provided on the part of the light emitting element substrate;
A second contact portion disposed in the second housing portion so as to be in contact with a conductive portion provided in the part of the power feeding member;
A connecting portion for connecting the first contact portion and the second contact portion;
An electrical connector comprising: The electrical connector according to claim 1,
The contact includes a first elastic piece portion provided with the first contact portion,
The electrical connector according to claim 1, wherein the housing includes a first support part that can contact the part of the light emitting element substrate and sandwiches the light emitting element substrate in cooperation with the first contact part. The electrical connector according to claim 1 or 2,
The contact includes a second elastic piece portion provided with the second contact portion,
The power supply member has a flat base portion, and the conductive portion of the power supply member is a power supply substrate as a substrate provided on the base portion,
The electrical connector according to claim 1, wherein the housing includes a second support part that is capable of contacting the part of the power supply board and sandwiches the power supply board in cooperation with the second contact part. The electrical connector according to claim 2,
The housing includes a first contact surface for contacting the front surface of the chassis, and a second contact surface for contacting the rear surface of the chassis and interposing the chassis in cooperation with the first contact surface. Including,
The electrical connector according to claim 1, wherein the first support portion is arranged on the same plane as the first contact surface. The electrical connector according to any one of claims 1 to 4,
The facing portion is formed with a communicating portion that communicates the first accommodating portion with the second accommodating portion,
The first contact portion, the second contact portion, and the connection portion of the contact are inserted into the first accommodation portion, the second accommodation portion, and the communication portion, respectively, along the insertion direction, and the housing. An electrical connector, wherein

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