JP2013246929A - Connection structure of electronic substrate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of an electronic substrate capable of further certainly suppressing that an electric connection member comes off from a connector.SOLUTION: A connection structure of an electronic substrate is provided with an FFC 47 which is connected both of a connector 70A and a connector 70B to electrically connect an LED substrate 43A and an LED substrate 43B. The connection structure of the electronic substrate is also provided with a cover member 50 which is attached to both of the LED substrate 43A and the LED substrate 43B to cover the connector 70A, the connector 70B, and the FFC 47. The FFC 47 is a longitudinal sheet member having flexibility, and one end portion 47A in a longitudinal direction of the FFC 47 is inserted in the connector 70A, and locked to the connector 70A by a lock mechanism provided on the connector 70A. The cover member 50 is provided with a lock holding portion 62 for holding a locking state of the one end portion 47A by the lock mechanism.

Description

  The present invention relates to an electronic board connection structure.

  Conventionally, an electronic substrate on which electronic components are mounted is known. Such an electronic substrate is likely to warp as its length increases. Moreover, when the electronic substrate is long, there is a concern that it becomes difficult to install the electronic substrate in equipment for mounting electronic components, for example.

  For this reason, a configuration is known in which the length of one substrate is reduced by dividing the electronic substrate from a plurality of electronic substrates. As a connection structure for connecting the substrates, a structure described in Patent Document 1 below is known. In the following Patent Document 1, a connector is mounted on each of the substrates, and both the connectors are connected by an electrical connection member (FFC or the like).

JP 2009-289843 A

  In general, a connector as described above is provided with a lock mechanism for preventing the electrical connection member from falling off. However, such a locking mechanism is based on the premise that the electronic substrate is used in a state where it is assembled to another member, and the force for fixing the electrical connection member is relatively weak.

  For this reason, if the electrical connection member or the electronic substrate receives an external force during the stage before the electronic substrate is assembled to the other member, for example, when the electronic substrate is transported when the electronic substrate is assembled to the other member, There is a concern that the electrical connection member locked by the mechanism may fall off the connector.

  This invention is completed based on the above situations, Comprising: It aims at providing the connection structure of the electronic board which can suppress more reliably the situation where an electrical connection member falls from a connector. .

  In order to solve the above-described problem, an electronic board connection structure according to the present invention includes a first electronic board on which a first connector is mounted, a second electronic board on which a second connector is mounted, the first connector, and the first connector. An electronic board connection structure comprising: an electrical connection member that electrically connects the first electronic board and the second electronic board by being connected to both of the second connectors, A cover member that is attached to both the electronic board and the second electronic board and covers the first connector, the second connector, and the electrical connection member, the electrical connection member having a longitudinal shape having flexibility. One end portion in the longitudinal direction of the electrical connection member is inserted into the first connector and is locked to the first connector by a lock mechanism provided in the first connector. It is click, the cover member is characterized in that the lock holding portion for holding the locked state of the one end portion by the lock mechanism is provided.

  In this invention, the cover member which covers a 1st connector, a 2nd connector, and an electrical connection member is provided. Thereby, a 1st connector, a 2nd connector, and an electrical connection member can be protected. As a result, the situation where the electrical connection member receives external force can be prevented, and the situation where the electrical connection member falls off from the first connector (or the second connector) can be suppressed. The cover member is provided with a lock holding portion that holds the locked state of the one end portion of the electrical connection member by the lock mechanism. Thereby, the situation where an electrical connection member falls from a 1st connector can be controlled more certainly.

  In the above configuration, the lock mechanism includes a pair of holding portions that hold the one end portion of the electrical connection member, and the lock holding portion includes one end portion of the pair of holding portions. It can be set as the structure which hold | maintains the said locked state of the said one end part by restricting displacement to the direction away from.

  Further, the one clamping part is a clamping piece that is rotatably attached to the first connector, and the lock holding part has a shape protruding from the cover member toward the clamping piece, The protruding end surface of the lock holding portion may be arranged so as to cover the surface of the clamping piece opposite to the one end portion.

  When the projecting end surface of the lock holding portion covers the surface of the sandwiching piece opposite to the one end, the sandwiching piece rotates away from the one end. Is regulated. Thereby, the locked state of the one end part by a locking mechanism can be hold | maintained.

  Further, the cover member includes a first locking portion that locks on a first locked portion provided on the first electronic board, and a second locked portion provided on the second electronic board. And a second locking portion for locking, the first locking portion being locked to the first locked portion, and the second locking portion being the second locked portion. The first electronic board and the second electronic board can be restricted from moving away from each other by being locked to each other.

  According to the present invention, as a result of the first electronic substrate and the second electronic substrate being restricted from moving away from each other, it is possible to suppress a situation in which the electrical connection member that connects the first electronic substrate and the second electronic substrate is pulled. Thereby, the situation where an electrical connection member falls off from the 1st connector or the 2nd connector can be controlled more certainly.

  In addition, the cover member includes a pair of opposing wall portions that are arranged to face each other so as to sandwich the electrical connection member from both the front and back surfaces, and one of the pair of opposing wall portions includes the other opposing wall portion. A projecting portion projecting toward the opposing wall portion is provided, and in the electrical connection member, an intermediate portion serving as an intermediate position in the longitudinal direction is between the projecting end surface of the projecting portion and the other opposing wall portion. It can be arranged in the gap formed.

  By sandwiching the electrical connection member between the pair of opposing wall portions, the electrical connection member can be accommodated inside the cover member (between the pair of opposing wall portions), and the electrical connection member can be more reliably protected. . In the electrical connecting member, the intermediate portion serving as the intermediate position in the longitudinal direction is arranged in a gap formed between the protruding end surface of the protruding portion and the other opposing wall portion. Accordingly, when the cover member is attached to the first electronic substrate (or the second electronic substrate), in other words, when the electrical connection member is accommodated inside the cover member, the intermediate portion of the electrical connection member is arranged in the gap. By doing so, the wiring path of the electrical connection member is regulated inside the cover member. As a result, the operation of housing the electrical connection member inside the cover member can be easily performed.

  In addition, a marking is formed on the one end portion of the electrical connection member, and the one end portion of the electrical connection member is disposed on the front side of the normal insertion position with respect to the first connector on the cover member. In this case, a window part through which the marking is exposed may be formed.

  When the marking is exposed through the window portion, it can be confirmed that the one end portion of the electrical connection member is disposed on the near side of the normal insertion position with respect to the first connector. Thus, in this invention, it can confirm easily that the electrical connection member is not correctly attached to the 1st connector, and an incorrect assembly | attachment can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the connection structure of the electronic board which can suppress more reliably the situation where an electrical connection member falls from a connector can be provided.

View of the instrument panel of the vehicle as seen from the rear Sectional drawing which shows the illuminating device for vehicles of this embodiment (corresponding to the figure cut | disconnected by the AA line of FIG. 1) A perspective view showing an illumination device for a vehicle Exploded perspective view showing vehicle lighting device (viewed from outside of vehicle compartment) The top view which shows a light source unit and a 1st housing | casing part. Perspective view showing the light source unit Enlarged view showing the vicinity of the cover member in FIG. 6 is an enlarged plan view showing the vicinity of the cover member (in a state where the lid portion is opened). FIG. 6 is an enlarged plan view showing the vicinity of the cover member (with the lid closed) Sectional drawing which shows a light source unit (corresponding to the figure cut | disconnected by the BB line of FIG. 9) Sectional drawing which shows a cover member (corresponding to the figure cut | disconnected by CC line of FIG. 9) FIG. 8 is an enlarged view showing the connector enlarged (locked state). FIG. 8 is an enlarged view showing the connector enlarged (unlocked state). Side view showing the connector (locked state) Side view showing connector (unlocked) Exploded perspective view showing vehicle lighting device (viewed from above) 16 is an enlarged view showing the vicinity of the cover member in FIG. Schematic which shows the state by which the light source unit was attached to the 1st housing | casing part. Sectional drawing which shows the illuminating device for vehicles (corresponding to the figure cut | disconnected by the EE line of FIG. 18) The figure which shows the fixing structure of a cover member and a 1st housing | casing part (corresponding to the figure cut | disconnected by the DD line | wire of FIG. 18) The figure which shows the fixing structure of a cover member and a 1st housing | casing part (corresponding to the figure cut | disconnected by the FF line of FIG. 18) The perspective view which shows the edge part vicinity of LED board 43A The perspective view which shows the edge part vicinity of LED board 43B

  An embodiment of the present invention will be described with reference to FIGS. In this embodiment, the vehicle lighting device 20 provided in the instrument panel 10 (vehicle interior material) of a vehicle is illustrated. FIG. 1 is a view of an instrument panel 10 of a vehicle as viewed from the rear of the vehicle.

  As shown in FIGS. 1 and 2, the vehicular illumination device 20 is provided outside the vehicle compartment of the instrument panel 10. The vehicular lighting device 20 has a longitudinal shape as shown in FIGS. 1 and 3. The vehicular lighting device 20 is arranged above the glove box 11 such that the longitudinal direction thereof is along the vehicle width direction.

  As shown in FIGS. 2 and 4, the vehicle lighting device 20 includes a housing 21 and a light source unit 40 accommodated in the housing 21. In addition, the vehicle lighting device 20 of the present embodiment has a slightly curved shape along the curved shape of the instrument panel 10 (see FIG. 5). The vehicular lighting device 20 has a function of enhancing the design of the vehicle interior by emitting linear light.

  The housing | casing 21 comprises a longitudinal shape and is divided | segmented and comprised from two members, as shown in FIG.2 and FIG.4. In the following description, one member of the housing 21 to which the light source unit 40 is directly attached is referred to as a first housing portion 22, and the other member is referred to as a second housing portion 30.

  As shown in FIG. 2, the first housing portion 22 has an L shape in cross section, and includes a bottom wall portion 23 constituting the bottom surface, and a periphery of the bottom wall portion 23 on the vehicle interior side (right side in FIG. 2). It has the standing wall part 24 which stands | starts up from an edge part. The second housing portion 30 is disposed opposite to the upper wall portion 31 disposed opposite to the bottom wall portion 23 and the standing wall portion 24, and extends downward from the peripheral end portion of the upper wall portion 31 outside the passenger compartment. The extended wall portion 32 is provided.

  As shown in FIG. 4, a plurality of engaging claws 25 </ b> A and 25 </ b> B extending toward the second housing portion 30 are formed at the peripheral end portion of the first housing portion 22. Each engaging claw 25 </ b> A is configured to be engaged with an engaging protrusion 33 </ b> A formed on the second housing part 30, and each engaging claw 25 </ b> B is formed on the second housing part 30. It is configured to be engaged with the engagement hole 33B (see FIG. 3). Thereby, the first housing unit 22 and the second housing unit 30 are assembled to each other.

  The light source unit 40 is attached along the standing wall portion 24. Each LED 41 </ b> A, 41 </ b> B provided in the light source unit 40 is arranged such that its light emission surface 42 faces the extended wall portion 32.

  In the present embodiment, as shown in FIG. 2, a gap S <b> 1 is formed between the panel members 10 </ b> A and 10 </ b> B constituting the instrument panel 10. In the first housing portion 22, a light emitting portion 22 </ b> A that allows the light emitted from the LEDs 41 </ b> A and 41 </ b> B to be emitted to the outside of the housing 21 is formed at a location facing the gap S <b> 1.

  The light emitting portion 22A extends along the longitudinal direction of the first housing portion 22, and has a structure that allows light to pass through by making the material transparent. For example, such a light emitting unit 22A is configured by forming the entire first casing unit 22 with a material having high translucency (high transparency), and blocking light in a portion other than the light emitting unit 22A in the first casing unit 22. It can be formed by applying a treatment for enhancing the property (for example, application of a light-shielding paint or application of a light-shielding film).

  Note that the configuration of the light emitting portion 22A is not limited as long as it can emit the light emitted from the LEDs 41A and 41B to the outside of the housing 21, and can be changed as appropriate. For example, the light emitting portion 22 </ b> A may be formed by forming a light emitting hole through the first housing portion 22. Only the light emitting portion 22A may be made of a transparent material so that light can pass therethrough.

  The inner peripheral surface 21A of the housing 21 is a light reflecting surface capable of reflecting the emitted light L1 from the LEDs 41A and 41B. Thereby, the emitted light L1 from the LEDs 41A and 41B is reflected by the inner peripheral surface 21A of the housing 21 and then emitted to the outside of the housing 21 through the light emitting portion 22A. That is, the inner peripheral surface 21A of the housing 21 serves as a light guide unit that guides the emitted light L1 from the LEDs 41A and 41B to the light emitting unit 22A. And the linear light radiate | emitted from 22 A of light-projection parts becomes a structure radiate | emitted in a vehicle interior through clearance gap S1.

  Next, the configuration of the light source unit 40 will be described. As shown in FIG. 6, the light source unit 40 includes an LED board 43A (first electronic board, first light source board), an LED board 43B (second electronic board, second light source board), and both LED boards 43A, 43B. FFC 47 (flexible flat cable, electrical connection member), and a cover member 50 covering each end of the LED substrates 43A and 43B and the FFC 47.

  Each of the LED substrates 43A and 43B is a rectangular plate member and has a longitudinal shape. The LED substrates 43 </ b> A and 43 </ b> B are arranged along the longitudinal direction of the housing 21. LEDs 41A (first light sources) are mounted on the LED board 43A, and a plurality of LEDs 41A are arranged along the longitudinal direction of the LED board 43A. The LED 41B (second light source) is mounted on the LED substrate 43B, and a plurality of LEDs 41B are arranged along the longitudinal direction of the LED substrate 43B.

  LED board 43A, 43B is distribute | arranged in the form where a mutual edge part adjoins. As shown in FIGS. 7 and 8, a connector 70A (first connector) is mounted on an end portion of the LED substrate 43A on the LED substrate 43B side. In addition, a connector 70B (second connector) is mounted on the end of the LED substrate 43B on the LED substrate 43A side.

  The LED substrates 43A and 43B are provided with a wiring pattern (not shown) serving as a conductive path. With this wiring pattern, the LED 41A and the LED 41B are electrically connected to the connector 70A and the connector 70B, respectively. The LED board 43A is electrically connected to a power supply device (not shown), and is configured to be able to supply power to the LEDs 41A and 41B from the power supply device.

  The FFC 47 is a longitudinal sheet member having flexibility. The FFC 47 is configured to electrically connect the LED board 43A and the LED board 43B by being connected to both the connector 70A and the connector 70B.

  Next, the configuration of the connectors 70A and 70B, particularly the connection structure between the FFC 47 and the connectors 70A and 70B will be described. Since the configurations of the connector 70A and the connector 70B are the same, the configuration of the connector 70A will be described here.

  One end 47A in the longitudinal direction of the FFC 47 is electrically connected by being inserted into the connector 70A. Specifically, as shown in FIG. 10, it is inserted into a connector housing 71 constituting a connector 70A. In this state, a terminal portion (not shown) provided at one end of the FFC 47 is in contact with a terminal portion (not shown) provided in the connector housing 71.

  As shown in FIG. 12, the connector housing 71 has an opening 71A into which the FFC 47 is inserted. A plate-shaped sandwiching piece 72 is accommodated in the opening 71A. The sandwiching piece 72 has a pair of shaft portions 73 having a substantially cylindrical shape, and is attached to the connector housing 71 through the shaft portions 73 so as to be rotatable. For this reason, the sandwiching piece 72 is configured to be rotatable with respect to the connector housing 71 with the axis orthogonal to the extending direction of the FFC 47 as the rotation axis A1.

  Accordingly, the end piece 47A of the FFC 47 is placed in the connector housing 71 in a state where the sandwiching piece 72 is substantially orthogonal to the insertion direction of the FFC 47 (the left-right direction in FIG. 15) (the state shown in FIGS. After that, the end piece 47A of the FFC 47 is held between the holding piece 72 and the bottom wall portion 74 of the connector housing 71 by rotating the holding piece 72 to the FFC 47 side (FIG. 10, FIG. 12 and the state shown in FIG. 14 and the locked state).

  As shown in FIG. 10, a situation in which the FFC 47 is detached from the connector 70 </ b> A can be regulated by sandwiching the one end portion 47 </ b> A of the FFC 47 between the sandwiching piece 72 and the bottom wall portion 74 of the connector housing 71. That is, the clamping piece 72 and the bottom wall portion 74 (a pair of clamping portions) constitute a locking mechanism that locks the FFC 47 with respect to the connector 70A.

  Further, as shown in FIG. 12, a pair of locking projections 75 is provided on both side surfaces of the holding piece 72 (one of the pair of holding portions). The pair of locking projections 75 are configured to be held in a locked state by being brought into contact with and locked to the inner surface of the opening 71 </ b> A of the connector housing 71.

  As shown in FIG. 9, the cover member 50 is attached to each end of the LED board 43 </ b> A and the LED board 43 </ b> B and covers the connector 70 </ b> A, the connector 70 </ b> B, and the FFC 47. Further, the cover member 50 has a function as a coupling member that couples the LED substrate 43A and the LED substrate 43B.

  In the present embodiment, the light source unit 40 has a curved shape along the curved shape of the instrument panel 10. By dividing the LED substrate in the light source unit 40 from a plurality of LED substrates 43A and 43B, the curvature of each of the substrates 43A and 43B can be made smaller than that of a single LED substrate, and the curved shape Can be easily realized.

  As shown in FIGS. 7 and 8, the cover member 50 has a long shape along the length direction of the LED substrates 43 </ b> A and 43 </ b> B, and includes a main body 51 and a lid 60. The main body 51 is substantially U-shaped in cross-sectional view, and can accommodate each end of the LED substrate 43A and the LED substrate 43B therein. The lid 60 is integrally connected to the main body 51 through an integral hinge 59.

  As shown in FIG. 11, the opening of the main body 51 is covered by the lid 60. Further, the lid 60 is rotated by the integral hinge 59 so that the main body 51 can be opened (the lid 60 in this state is indicated by a two-dot chain line in FIG. 11). ).

  As shown in FIG. 11, the main body 51 includes a bottom wall 52 and a pair of side walls 53 erected from both ends of the bottom wall 52 in the short side direction. A lid 60 is connected to one side wall 53 of the pair of side walls 53 via an integral hinge 59. The lid part 60 and the bottom wall part 52 (a pair of opposing wall parts) are arranged to face each other so as to sandwich the FFC 47 from both the front and back surfaces.

  A mounting piece 61 that is bent with respect to the lid 60 is formed at the peripheral end of the lid 60 on the side of the other side wall 53. The attachment piece portion 61 is disposed opposite to the other side wall portion 53, and has a configuration in which the distal end portion can be elastically bent and deformed with the base end portion as a fulcrum. An attachment hole 61 </ b> A is formed through the attachment piece 61. On the other hand, the other side wall 53 is provided with an attachment projection 54 inserted through the attachment hole 61A. As a result, the attachment protrusion 54 is inserted into the attachment hole 61 </ b> A, whereby the attachment piece 61 is locked to the attachment protrusion 54.

  As shown in FIG. 8, the side wall 53 of the cover member 50 is disposed to face both the side surface 43D of the LED substrate 43A and the side surface 43E of the LED substrate 43B. The side wall 53 is formed with a first protrusion 53A (first locking portion) that fits into a groove 45A (first locked portion) formed by cutting out the side surface 43D of the LED substrate 43A. Yes. Further, the side wall 53 is formed with a second protrusion 53B (second locking portion) that fits into a groove 45B (second locked portion) formed by cutting out the side surface 43E of the LED substrate 43B. Has been.

  The projecting direction of the first projecting portion 53A and the second projecting portion 53B is orthogonal to the extending direction of the LED substrate 43A and the LED substrate 43B. As a result, the first protrusion 53A engages with the groove 45A and the second protrusion 53B engages with the groove 45B, whereby the LED substrate 43A and the LED substrate 43B move away from each other (the horizontal direction in FIG. 8). ) Is restricted. In other words, the LED board 43 </ b> A and the LED board 43 </ b> B are configured to prevent a situation where the LED board 43 </ b> A and the LED board 43 </ b> B come off from the cover member 50.

  As shown in FIG. 10, a lock holding portion 62 that protrudes toward the holding piece 72 of the connector 70 </ b> A is provided on the surface of the lid portion 60 that faces the connector 70 </ b> A. As shown in FIG. 11, the projecting end surface 62A of the lock holding portion 62 is arranged in a shape that covers the surface 72A on the opposite side of the one end portion 47A of the clamping piece 72 (or a shape that abuts on the surface 72A). Further, the protruding end surface 62A extends along the extending direction of the sandwiching piece 72 (the left-right direction in FIG. 11).

  Accordingly, the protruding end surface 62A is configured to restrict the sandwiching piece 72 from being rotated (displaced) in the direction away from the one end portion 47A (the direction indicated by the arrow P1 in FIG. 14). That is, the lock holding portion 62 is configured to hold the locked state of the one end portion 47A by the lock mechanism.

  As shown in FIG. 10, the lid portion 60 (one of the pair of opposing wall portions) protrudes toward the bottom wall portion 52 (the other of the pair of opposing wall portions). A protruding portion 64 is provided. The projecting end surface 64 </ b> A of the projecting portion 64 is arranged with a gap S <b> 2 between the bottom wall portion 52 and the projecting end surface 64 </ b> A. An intermediate portion 49 serving as an intermediate position in the longitudinal direction of the FFC 47 (left and right direction in FIG. 10) is disposed in the gap S2.

  In addition, a pair of ribs 55 are formed on the bottom wall portion 52 so as to sandwich the intermediate portion 49 from both sides in the longitudinal direction of the FFC 47. As a result, the routing path of the FFC 47 inside the cover member 50 is regulated by the protrusion 64 and the pair of ribs 55. Specifically, in the present embodiment, the length of the FFC 47 is set to be larger than the distance between the connectors 70A and 70B, and the FFC 47 is substantially M-shaped by the protrusion 64 and the pair of ribs 55. It is routed in an eggplant form.

  In one end portion 47A of the FFC 47, a marking 48 is formed on the surface opposite to the LED substrate 43A with, for example, ink as shown in FIG. Corresponding to the marking 48, a window portion 63 is formed through the lid portion 60. As shown by a two-dot chain line in FIG. 13, the window 63 is arranged in such a manner that the sandwiching piece 72 and a part thereof overlap in plan view. Is arranged on the left side (the side opposite to the insertion direction of the FFC 47 with respect to the connector 70A).

  When the one end portion 47A of the FFC 47 is correctly inserted into the connector 70A (normal insertion position), the marking 48 is formed at a position that overlaps with the sandwiching piece 72 in plan view. For this reason, in the regular insertion position, as shown in FIGS. 9 and 12, the marking 48 is not exposed from the window portion 63.

  When the one end portion 47A of the FFC 47 is arranged on the near side of the connector 70A with respect to the normal insertion position (on the opposite side to the insertion direction of the FFC 47 with respect to the connector 70A), as shown in FIG. The marking 48 is exposed through the window 63.

  Next, a structure for fixing the light source unit 40 to the housing 21 will be described. As shown in FIGS. 16 and 17, an attachment recess 26 that is recessed toward the outside of the first housing portion 22 is provided at an intermediate position in the longitudinal direction of the standing wall portion 24 of the first housing portion 22. On the other hand, the main body 51 of the cover member 50 is provided with an extending portion 56 that extends toward the mounting recess 26.

  As shown in FIGS. 18 and 19, the cover member 50 is held by the first housing portion 22 by fitting the extending portion 56 to the mounting recess 26 (holding portion).

  As shown in FIGS. 20 and 21, the extending portion 56 is formed with a fitting recess 57 that is fitted to the protrusion 27 protruding from the inner surface of the mounting recess 26. This restricts the extension portion 56 from being displaced to the side away from the standing wall portion 24 (the upper side in FIG. 21).

  Further, as shown in FIG. 19, the upper wall portion 31 of the second housing portion 30 has a bent portion 34 whose one end portion is bent toward the extending portion 56. The extending portion 56 of the cover member 50 includes an inner peripheral surface of the mounting recess 26 (a peripheral end portion of the first housing portion 22 including a protruding end surface of the protruding portion 27) and a bent portion 34 (a periphery of the second housing portion). It is configured to be clamped by the end portion. Accordingly, the cover member 50 (the coupling portion between the LED substrate 43A and the LED substrate 43B) is fixed to the housing 21.

  As shown in FIG. 18, in the standing wall portion 24 (the wall portion on which the LED substrates 43A and 43B are placed), the LED substrates 43A and 43B are attached to locations corresponding to both ends of the light source unit 40, respectively. Wall portions 28A and 28B are erected.

  As shown in FIG. 22, the attachment wall portion 28A is formed with a fitting groove portion 29A into which one end portion of the LED substrate 43A is fitted. Further, as shown in FIG. 23, a fitting groove portion 29B into which one end portion of the LED substrate 43B is fitted is formed in the mounting wall portion 28B.

  As shown in FIGS. 22 and 23, the fitting grooves 29 </ b> A and 29 </ b> B have openings 36 </ b> A and 36 </ b> B that are opened in the same direction as the opening direction of the mounting recess 26, respectively. As a result, the extended portion 56 of the cover member 50 is fitted into the mounting recess 26, and at the same time, the end portions of the LED boards 43A and 43B can be inserted into the fitting groove portions 29A and 29B through the openings 36A and 36B. it can.

  Moreover, the opening width of each opening part 36A, 36B becomes large as it goes outside, and it has the structure which can insert each edge part of LED board 43A, 43B easily.

  Next, the effect of this embodiment will be described. In the present embodiment, a cover member 50 that covers the connector 70A, the connector 70B, and the FFC 47 is provided. Thereby, the connector 70A, the connector 70B, and the FFC 47 can be protected. As a result, the situation in which the FFC 47 receives external force can be prevented, and the situation in which the FFC 47 falls off the connector 70A (or the connector 70B) can be suppressed. The cover member 50 is provided with a lock holding portion 62 that holds the locked state of the one end portion 47A of the FFC 47 by the lock mechanism. Thereby, the situation where FFC47 falls off from connector 70A (or connector 70B) can be controlled more certainly.

  One clamping part is a clamping piece 72 that is rotatably attached to the connector 70A, and the lock holding part 62 has a shape protruding from the cover member 50 toward the clamping piece 72, and the lock holding part A projecting end surface 62A of 62 is arranged so as to cover a surface 72A of the sandwiching piece 72 opposite to the one end portion 47A.

  When the projecting end surface 62A of the lock holding portion 62 covers the surface 72A opposite to the one end portion 47A of the sandwiching piece 72, the sandwiching piece 72 rotates away from the one end portion 47A. The contact is regulated by the contact. Accordingly, the locked state of the one end portion 47A by the lock mechanism can be maintained.

  Further, the cover member 50 is provided with a first protrusion 53A that is engaged with the groove 45A provided on the LED substrate 43A, and a second protrusion 53B that is engaged with the groove 45B provided on the LED substrate 43B. The first protrusion 53A is locked to the groove 45A, and the second protrusion 53B is locked to the groove 45B, so that the LED substrate 43A and the LED substrate 43B are restricted from moving away from each other. It is said.

  According to the present embodiment, as a result of the LED substrate 43A and the LED substrate 43B being restricted from moving away from each other, a situation in which the FFC 47 connecting the LED substrate 43A and the LED substrate 43B is pulled can be suppressed. Thereby, the situation where FFC47 falls off from connector 70A (or connector 70B) can be controlled more certainly.

  In addition, the cover member 50 includes a lid portion 60 and a bottom wall portion 52 that are opposed to each other so that the FFC 47 is sandwiched from both the front and back surfaces, and the lid portion 60 protrudes toward the bottom wall portion 52. In the FFC 47, the intermediate portion 49, which is an intermediate position in the longitudinal direction, is arranged in a gap S2 formed between the protruding end surface 64A of the protruding portion 64 and the bottom wall portion 52.

  By sandwiching the FFC 47 between the lid 60 and the bottom wall 52, the FFC 47 can be accommodated inside the cover member 50 (between the lid 60 and the bottom wall 52), and the FFC 47 can be more reliably protected. it can. Further, in the FFC 47, the intermediate portion 49 serving as an intermediate position in the longitudinal direction is disposed in a gap S <b> 2 formed between the protruding end surface 64 </ b> A of the protruding portion 64 and the bottom wall portion 52. Accordingly, when the cover member 50 is attached to the LED board 43A (or LED board 43B), in other words, when the FFC 47 is accommodated inside the cover member 50, the intermediate portion 49 of the FFC 47 is disposed in the gap S2. In the interior of the cover member 50, the routing path of the FFC 47 is restricted. As a result, the operation of housing the FFC 47 inside the cover member 50 can be easily performed.

  Further, the marking 48 is formed at one end 47A of the FFC 47, and the marking 48 is exposed when the one end 47A of the FFC 47 is disposed on the front side of the normal insertion position with respect to the connector 70A. A window portion 63 is formed through.

  When the marking 48 is exposed through the window portion 63, it can be confirmed that the one end portion 47A of the FFC 47 is disposed on the near side of the normal insertion position with respect to the connector 70A. Thus, in this embodiment, when the FFC 47 is not correctly attached to the connector 70A, this can be easily confirmed, and erroneous assembly can be prevented.

  Moreover, in this embodiment, the cover member 50 (joining member) which couple | bonds LED board 43A and LED board 43B is provided, and LED board 43A and LED board 43B can be handled as one board | substrate. The cover member 50 is configured to be held in the mounting recess 26 of the housing 21. Thereby, LED board 43A and LED board 43B of the state couple | bonded together can be assembled | attached with respect to the housing | casing 21 collectively, and workability | operativity concerning an assembly | attachment can be made high.

  The housing 21 is divided from the first housing portion 22 and the second housing portion 30, and the cover member 50 is sandwiched between the inner peripheral surface of the mounting recess 26 and the bent portion 34.

  The coupling member can be fixed to the casing 21 by sandwiching the cover member 50 by the peripheral end of the first casing 22 and the peripheral end of the second casing 30.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the said embodiment, although FFC47 was illustrated as an electrical connection member, it is not limited to this. As the electrical connection member, for example, an FPC (flexible printed circuit board) may be used.

  (2) In the above embodiment, the LED board 43A is exemplified as the first electronic board, and the LED board 43B is exemplified as the second electronic board. However, the present invention is not limited to this. The first electronic substrate and the second electronic substrate are not limited to the substrate on which the LEDs are mounted, and can be changed as appropriate.

  (3) As an example of the lock mechanism, the FFC 47 is sandwiched between the bottom wall portion 74 of the connector housing 71 by rotating the sandwiching piece 72, but is not limited thereto.

  (4) In the above configuration, the protruding portion 64 may protrude from the bottom wall portion 52 toward the lid portion 60.

  (5) In the above configuration, the groove portion 45A may be provided in the side wall portion 53 (on the cover member 50 side), and the first protrusion 53A may be provided on the side surface 43D of the LED substrate 43A. Further, the locking portion and the locked portion are not limited to the protruding portion and the groove portion. Examples of the locking part and the locked part include a locking claw and a locking hole.

43A ... LED board (first electronic board), 43B ... LED board (second electronic board), 45A ... groove (first locked part), 45B ... groove (second locked part), 47 ... FFC ( Electrical connection member), 47A ... one end (one end in the longitudinal direction of the electrical connection member), 48 ... marking, 49 ... intermediate part, 50 ... cover member, 52 ... bottom wall part (the other of the pair of opposing wall parts) (Opposite wall portion), 53A... First protrusion (first locking portion), 53B... Second protrusion (second locking portion), 60 .. lid portion (one opposing wall portion of the pair of opposing wall portions) , 62 ... Lock holding part, 62 A ... Projecting end face of the lock holding part, 63 ... Window part, 64 ... Projecting part, 64 A ... Projecting end face of the projecting part, 70 A ... Connector (first connector), 70 B ... Connector (second) Connector) 72... Clamping piece (one clamping part of a pair of clamping parts, locking mechanism) ), Constituting one end portion of 72A ... gripping piece surface opposite the other clamping portion of the bottom wall portion 74 ... connector housing (pair of holding portions, the locking mechanism), S2 ... gap

Claims (6)

A first electronic board on which a first connector is mounted;
A second electronic board on which a second connector is mounted;
An electronic board connection structure comprising: an electrical connection member that electrically connects the first electronic board and the second electronic board by being connected to both the first connector and the second connector, respectively. There,
A cover member that is attached to both the first electronic board and the second electronic board and covers the first connector, the second connector, and the electrical connection member;
The electrical connection member is a longitudinal sheet member having flexibility,
One end of the electrical connection member in the longitudinal direction is inserted into the first connector, and is locked to the first connector by a locking mechanism provided in the first connector,
A connection structure for an electronic board, wherein the cover member is provided with a lock holding portion for holding the locked state of the one end by the lock mechanism. The locking mechanism includes a pair of clamping portions that clamp the one end portion of the electrical connection member,
The lock holding portion is configured to hold the locked state of the one end portion by restricting one of the pair of holding portions from being displaced in a direction away from the one end portion. 2. A connection structure of an electronic board according to 1. The one clamping part is a clamping piece that is rotatably attached to the first connector,
The lock holding part has a shape protruding from the cover member toward the clamping piece,
The connection structure for an electronic board according to claim 2, wherein the protruding end surface of the lock holding portion is arranged so as to cover a surface of the holding piece opposite to the one end portion. The cover member includes a first locking portion that locks on a first locked portion provided on the first electronic substrate, and a second locking portion provided on the second electronic substrate. A second locking portion to be provided,
The first locking portion is locked to the first locked portion, and the second locking portion is locked to the second locked portion, whereby the first electronic board and the second locking portion are locked. The electronic substrate connection structure according to any one of claims 1 to 3, wherein the electronic substrate is restricted from moving away from each other. The cover member includes a pair of opposing wall portions arranged to face each other in a form sandwiching the electrical connecting member from both front and back surfaces,
One of the pair of opposing wall portions is provided with a protruding portion that protrudes toward the other opposing wall portion,
2. The electrical connection member according to claim 1, wherein an intermediate portion serving as an intermediate position in the longitudinal direction is disposed in a gap formed between a protruding end surface of the protruding portion and the other opposing wall portion. 5. The connection structure for an electronic substrate according to any one of 4 above. A marking is formed on the one end of the electrical connection member,
The cover member is formed with a window portion through which the marking is exposed when the one end portion of the electrical connection member is disposed on the near side of the normal insertion position with respect to the first connector. The connection structure for an electronic substrate according to any one of claims 1 to 5.

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