JP2008108711A - Card edge connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card edge connector capable of improving reliability of connection. <P>SOLUTION: There are provided a connection member 41 disposed on at least one surface side of front and back surfaces of an edge end portion of a circuit substrate P and capable of contacting to the edge end portion of the circuit substrate P; pushing members 60A and 60B disposed on an opposite side of a side contacting the circuit substrate P in the connection member 41: and a taper surface 64 formed at the pushing members 60A and 60B and generating force which pushes the connection member 41 toward the side of the circuit substrate P by receiving elastic recovery force of an elastic member 70. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a card edge connector.

  Conventionally, for example, a connector disclosed in Patent Document 1 is known as a card edge connector. This connector includes a sub-housing capable of inserting a terminal fitting crimped to the end of an electric wire, and a main housing provided with connecting members capable of contacting conductive paths provided on both upper and lower surfaces of the edge portion of the circuit board. . The connecting member has a long shape in the front-rear direction as a whole, its front end is an elastic contact that makes elastic contact with the conductive path of the circuit board, and the terminal fitting inserted into the sub-housing can be connected to the rear end To be connected to. The connecting members are divided into upper and lower portions corresponding to the upper and lower surfaces of the circuit board, and a predetermined interval (a dimension slightly smaller than the thickness of the circuit board) is provided between the elastic contact portions of the upper and lower connecting members. It has been.

The edge part of the circuit board protrudes into the hood part from the back wall surface of the hood part. When the main housing is fitted into the hood portion, the protruding edge portion of the circuit board is inserted into the main housing. The edge part of the circuit board inserted into the main housing interrupts between the elastic contact parts arranged vertically with a predetermined interval, and the elastic contact parts elastically contact the upper and lower surfaces of the circuit board. It will be in the state connected to the conductive path.
JP 2002-367696 A

By the way, the contact part with the elastic contact part in a circuit board may be gradually dented by creep phenomenon with progress of time. Here, since the elastic contact portion is elastically contacted with the circuit board, a contact failure is not immediately caused by a slight dent of the circuit board, but rattling occurs between the elastic contact portion and the circuit board due to the dent. The connection may become unstable. Therefore, in order to withstand long-term use, it is necessary to reliably prevent the connection between the elastic contact portion and the circuit board from becoming unstable due to such a creep phenomenon. Improvement of connection reliability is required.
The present invention has been completed based on the above situation, and an object thereof is to provide a card edge connector capable of improving connection reliability.

The present invention provides a connection member that is disposed on at least one of the front and back surfaces of the edge portion of the circuit board and that can contact the edge portion of the circuit board, and the circuit board in the connection member. A pressing member disposed on the side opposite to the contacting side, a tapered surface formed on the pressing member and receiving a resilient restoring force of an elastic member to generate a force in a direction of pressing the connection member toward the circuit board; It is characterized by comprising.
According to such a configuration, the elastic restoring force of the elastic member causes a force in the direction of pressing the connecting member toward the circuit board on the tapered surface of the pressing member. Even if the contact portion is depressed, it is possible to prevent the connection between the connection member and the circuit board from becoming unstable, thereby improving the connection reliability.

  The connection member is provided in a housing that can be fitted between an edge portion of the circuit board and a hood provided on the circuit board side, and the pressing member is provided in the connection member of the housing. It is attached to the opposite side to the side where it is provided and is slidable in the fitting direction with the hood part, and the elastic member is disposed on the rear side in the sliding direction of the pressing member, and is more than the elastic member. On the rear side in the sliding direction, a restricting portion for restricting the displacement of the elastic member to the rear is provided, and the tapered surface is formed at an end of the pressing member on the front side in the sliding direction so as to contact the hood portion. When the housing and the hood portion are in a properly fitted state, the elastic member is pressed and compressed by the pressing member and the restricting portion, and the taper surface is elastically restored by the elastic restoring force. And said And over de section may alternatively be pressed state. Thereby, the force of the direction which presses a connection member to the circuit board side on the taper surface of a press member arises by the elastic restoring force of the elastic member which was pressed and elastically pressed by the press member and the control part.

  Further, a plurality of the connection members are provided in parallel in the width direction of the housing, and the pressing member has a flat plate shape that extends in the width direction of the housing over a range where the connection members in the housing are arranged. It may be an eggplant. As a result, the housing is in a state of being pressed evenly toward the circuit board by the pressing member, so that the force pressing the connecting member toward the circuit board is not biased.

  An engaging groove extending in the sliding direction is formed on one of the opposing surfaces of the pressing member and the housing, and an engaging protrusion capable of passing through the engaging groove on the other surface. The pressing member may be slid while passing the engaging protrusion through the engaging groove. Thereby, the pressing member is corrected and slid so as not to deviate from the sliding direction.

  The engaging groove and the engaging protrusion may be formed with an engaging surface that prevents the pressing member from lifting from the housing by engaging with each other. Thereby, the lifting of the pressing member from the housing is prevented.

  Moreover, the peripheral wall part which makes | forms the shape surrounding the circumference | surroundings of this elastic member is good also as a position corresponding to the said elastic member in the said control part. Thereby, the deformation | transformation to the outer side of the part enclosed by the surrounding wall part in an elastic member can be controlled.

  Further, the elastic member may be a coil spring, and a shaft portion that is fitted into the center of the coil spring may be provided at a position corresponding to the coil spring in the restricting portion. Thereby, the deformation | transformation to the inner side of the part in which the axial part in a coil spring was inserted can be controlled.

  Further, the housing is provided in a pair corresponding to both the front and back surfaces of the edge portion of the circuit board, and the pair of housings are assembled so as to be slidable in a direction sandwiching the edge portion of the circuit board, The elastic members may be arranged at alternate positions in the pair of housings. As a result, the pair of housings are well balanced because they are pushed in the direction of sandwiching the edge of the circuit board at alternate positions by the restoring force of the elastic member.

  The elastic member is elastically held in a tensioned state between the pressing member and an assembly member that is slidable relative to the pressing member, and the pressing member and the assembly member One of the tapered surfaces is formed, and the other is provided with a tapered surface pressing portion capable of pressing the tapered surface, and the tapered surface and the tapered surface pressing portion are formed by an elastic restoring force of the elastic member. May be in a pressed state.

  According to such a configuration, due to the elastic restoring force of the elastic member held in the tension state between the pressing member and the assembly member, the force in the direction of pressing the connecting member against the circuit board side against the taper surface of the pressing member. As a result, connection reliability can be improved. Further, connection reliability can be improved without providing a hood portion on the circuit board side.

  Further, the connection member and the pressing member are arranged on the front and back both sides of the edge portion of the circuit board, and the pressing member and the assembly member are engaged with each other, whereby the pressing member and the pressing member are An engagement portion may be provided that holds the relative positional relationship with the assembly member at a position where the tapered surface and the tapered surface pressing portion are in a non-pressed state. Thereby, the edge part of a circuit board can be inserted in the state which kept the taper surface and the taper press surface in the non-pressed state, ie, the state where the press member is not pressed in the closing direction. Therefore, the connection work with the edge part of a circuit board can be performed easily.

  ADVANTAGE OF THE INVENTION According to this invention, the card edge connector which can aim at the improvement of connection reliability can be provided.

<Embodiment 1>
Embodiment 1 of the present invention will be described below with reference to FIGS.
The card edge connector in the present embodiment is a harness side connector H1 that is connected to a terminal of a wire harness (not shown) and can be fitted to a board side connector K into which an end edge portion of the circuit board P is inserted. Hereinafter, in each component member, the fitting surface side of both the connectors K and H1 will be referred to as the front, and the upper side in FIG. 1 will be described as the upper side and the lower side as the lower side.

  The board-side connector K includes a board-side housing 10 into which the edge of the circuit board P can be inserted from the rear. The board-side housing 10 is made of synthetic resin and includes a hood portion 11 that opens forward (leftward in FIG. 1). Between the upper wall portion of the hood portion 11 and the upper surface of the circuit board P and between the lower wall portion of the hood portion 11 and the lower surface of the circuit board P, there is an interval in which the harness side connector H1 can be fitted. ing. And the lock | rock recessed part 12 engageable with the lock | rock protrusion 51 of the lock arm 50 of the harness side connector H1 mentioned later is formed in the center position of the width direction in the upper wall part of the food | hood part 11 (refer FIG. 6). ). Conductive paths (not shown) are formed on the upper and lower surfaces of the circuit board P.

  The upper wall portion and the lower wall portion of the hood portion 11 are each provided with a contact portion 13 that protrudes inward of the hood portion 11. The contact portion 13 has a shape protruding inward over a range from the back end surface (rear end surface) of the hood portion 11 to a position slightly rearward of the center position in the front-rear direction of the hood portion 11. The distance between the contact portion 13 and the upper and lower surfaces of the circuit board P is such that the upper wall portion and the lower wall portion of the hood portion 11 are not provided with the contact portion 13 (front side portion) and the circuit board P. It is narrower than the distance between the upper surface and the lower surface. And the corner | angular part of the rear-end edge of the contact part 13 becomes the contact edge 13A which can contact | abut to the taper surface 64 of the 1st and 2nd slide members 60A and 60B mentioned later, respectively.

  The harness-side connector H1 is a harness-side housing 20 (corresponding to the housing of the present invention) that can be fitted in the hood portion 11 with the edge of the circuit board P protruding from the back end surface of the hood portion 11 being sandwiched in the vertical direction. Yes). The harness-side housing 20 integrally includes a first housing 20A that is fitted above the edge of the circuit board P and a second housing 20B that is fitted below the edge of the circuit board P. It is assembled. The first housing 20A and the second housing 20B are assembled so as to be slidable in the direction of sandwiching the edge of the circuit board P (the vertical direction in FIG. 1) according to the thickness dimension of the circuit board P.

  The first housing 20A and the second housing 20B each have a flat block shape. The upper surface of the first housing 20A and the lower surface of the second housing 20B are a slide surface 21 to which a first slide member 60A and a second slide member 60B, which will be described later, are attached, respectively. Has been.

  As shown in FIGS. 2 and 3, a pair of front and rear assembly protrusions 22 is provided on the side surface of the first housing 20A. The lower surface of the assembling protrusion 22 is a ramp-up surface 23 that protrudes sideways little by little from its lower end upward (see FIG. 5). A pair of assembly window portions 24 are opened in the front and rear at positions corresponding to the assembly protrusions 22 on both side walls of the second housing 20B.

  On the lower surface of the second housing 20B, as shown in FIG. 5, an accommodation recess 25 having a shape in which the lower surface is recessed upward is provided at both ends and the center in the width direction. A coil spring 70 and the like described later are accommodated. The housing recess 25 has a shape that is continuously cut away from the front end of the second housing 20B toward the rear.

  A plurality of cavities 26 penetrating in the front-rear direction are juxtaposed in the width direction in the first housing 20A and the second housing 20B. As shown in FIG. 7, the terminal 40 connected to the terminal (not shown) of the electric wire which comprises a wire harness is inserted in the rear part of this cavity 26. As shown in FIG. The front portion of the cavity 26 accommodates a connection member 41 that can be electrically connected to the terminal 40 and can be elastically contacted with the edge of the circuit board P. The front portion of the cavity 26 is open to the circuit board P side, and the connection member 41 faces the circuit board P side through this opening.

  The terminal 40 is a so-called male terminal 40, which is formed by pressing a metal plate having excellent conductivity, and has a shape that is long in the front-rear direction as a whole. The rear portion of the terminal 40 is a crimp portion 42 that can be crimped to the end of the electric wire, and the front portion is a tab portion 43 that can be connected to the connection member 41. The tab portion 43 has a shape extending linearly, and enters the connection member 41 side when the terminal 40 is inserted into the cavity 26. Each terminal 40 is retained by a lance 27 provided in the cavity 26.

  The connection member 41 is formed by pressing a metal plate that is also excellent in electrical conductivity, and includes a square tube portion 44 having a square tube shape as a whole, and is attached by being press-fitted into the cavity 26 from the front. Has been. The tab portion 43 of the terminal 40 is inserted into the rectangular tube portion 44, and the terminal 40 and the connection member 41 are connected so as to be conductive.

  A pressing piece 45 extending obliquely toward the wall portion on the circuit board P side is provided on the wall portion on the opposite side of the square cylinder portion 44 from the circuit board P side. The pressing piece 45 has a cantilever shape formed by cutting out the wall portion of the rectangular tube portion 44 and sandwiches the tab portion 43 between the rectangular tube portion 44 and the wall portion on the circuit board P side. . Since the tab portion 43 is sandwiched between the pressing piece 45 of the terminal 40 and the wall portion of the rectangular tube portion 44, the connection reliability between the terminal 40 and the connecting member 41 is high.

  Further, the connecting member 41 includes an elastic contact piece 46 that is folded back obliquely rearward in a direction approaching the circuit board P from the front edge of the wall portion on the side of the circuit board P in the rectangular tube portion 44. The extended end portion of the elastic contact piece 46 is bent at an obtuse angle, and the bent portion serves as a contact portion 47 with the circuit board P. The elastic contact piece 46 can be elastically bent in the vertical direction.

  The elastic contact piece 46 of the connection member 41 attached to the first housing 20A and the elastic contact piece 46 of the connection member 41 attached to the second housing 20B are in a state of facing vertically, and the upper and lower elastic contact pieces. The distance between the contact portions 47 of 46 is made smaller than the thickness dimension of the circuit board P.

  A metal lock arm 50 is attached to the center in the width direction of the slide surface 21 (the upper surface of the harness-side housing 20) of the first housing 20A. The lock arm 50 has a shape that extends rearward in a cantilevered manner, and can be elastically bent in the vertical direction. The lock arm 50 is provided with a lock protrusion 51 that can be engaged with the lock recess 12 of the hood portion 11 when the board-side connector K and the harness-side connector H1 reach a proper fitting state ( (See FIG. 6). In addition, low height of the harness side connector H1 is achieved by making the lock arm 50 metal.

  A plurality of engaging protrusions 28 are provided on the slide surfaces 21 of the first housing 20A and the second housing 20B (upper and lower surfaces of the harness-side housing 20) so as to protrude upward and downward, respectively. As shown in FIG. 5, the engagement protrusions 28 are provided at a total of four locations on the slide surface 21 of the first housing 20 </ b> A, including both ends in the width direction and both sides of the lock arm 50. The sliding surface 21 is provided at a total of four positions, which are slightly shifted in the width direction with respect to the engaging protrusion 28 on the first housing 20A side. Both the first housing 20A and the second housing 20B are arranged at positions closer to the front side than the center position in the front-rear direction of both the housings 20A and 20B (see FIG. 2).

  The engagement protrusion 28 is formed with an overhang portion 29 that extends in a substantially parallel direction to the plate surfaces of both slide surfaces 21 (upper surface and lower surface) of the harness-side housing 20. As shown in FIG. 5, the projecting portion 29 is formed only on the center side in the width direction of the first housing 20 </ b> A at the engaging protrusions 28 provided at both ends in the width direction of the first housing 20 </ b> A. The engaging protrusions 28 provided at the positions are formed in pairs on both sides. And the cross-sectional shape which looked at the engagement protrusion 28 from the front-back direction is L-shaped if it is provided at both ends in the width direction of the first housing 20A, and T-shaped if it is provided at other positions. It has a shape. A surface of each overhang portion 29 facing the slide surfaces 21 of the harness-side housing 20 is an engagement surface 29A that engages with a protrusion 63 formed on first and second slide members 60A and 60B described later. Yes.

  The first slide member 60A and the second slide member 60B (corresponding to the pressing member of the present invention) are respectively provided in the front-rear direction on the slide surfaces 21 of the first housing 20A and the second housing 20B, that is, the upper and lower surfaces of the harness-side housing 20. It is slidably attached in the direction of fitting with the board-side connector K. As shown in FIGS. 4 and 5, the first slide member 60 </ b> A and the second slide member 60 </ b> B have a substantially rectangular flat plate shape that is long in the width direction as a whole, and the connection members 41 in both housings 20 </ b> A and 20 </ b> B are arranged. It has a width dimension over a certain range.

  A lock release portion 61 for releasing the lock arm 50 is provided at the center in the width direction at the front end portion of the first slide member 60A. The lock release portion 61 is formed by cutting out from the front edge of the first slide member 60A to the rear in a substantially rectangular shape. By providing the lock release portion 61 in this manner, it is possible to attach the lock arm 50 while keeping the first slide member 60A in a shape continuous in the width direction.

  In the first slide member 60A and the second slide member 60B, engagement groove portions 62 are provided at positions corresponding to the engagement protrusions 28 of the first housing 20A and the second housing 20B, respectively. Each engaging groove 62 has a shape that is notched backward from the front edge of the first slide member 60A and the second slide member 60B, thereby opening the front edge and the front-rear direction (board-side connector K). In the fitting direction). The engagement groove portion 62 has a width dimension slightly larger than the width dimension of the engagement protrusion 28. Note that the engagement groove portions 62 formed at both ends in the width direction of the first slide member 60A (positions corresponding to the engagement protrusions 28 at both ends of the first housing 20A) are open at the sides in the width direction. It has a shape.

  On the side surface constituting each engagement groove 62, a protrusion 63 is provided that can pass through a gap between the protruding portion 29 of the engagement protrusion 28 and the upper and lower surfaces of the harness-side housing 20. This protrusion 63 is formed over the front-rear direction of each engagement groove 62. The surface of each protrusion 63 opposite to the harness side housing 20 is engaged with the engagement surface 29A of the overhang portion 29 to prevent the slide members 60A and 60B from being lifted from the harness side housing 20. A mating surface 63A is formed (see FIG. 5).

  Now, a taper surface 64 is formed at the front end of the both sliding members 60A and 60B in the fitting direction. The tapered surface 64 is formed over the width direction excluding the lock relief portion 61 in the first slide member 60A, and is formed over the entire width in the second slide member 60B.

  The taper surface 64 is formed in a range from the front end edge of each slide member 60A, 60B to the position near the rear end of the engagement groove 62, and the taper surface 64 of the first slide member 60A is directed rearward from the front end edge. The first housing 20A has a slope that gradually rises upward from the slide surface 21 (the upper surface on the harness side housing 20 side), and the tapered surface 64 of the second slide member 60B is rearward from the front edge thereof toward the rear. The slide surface 21 (the lower surface on the harness side housing 20 side) is inclined downward gradually (see FIG. 3).

  At both ends of the sliding members 60A and 60B on the rear side in the fitting direction, a pressing wall 65 that presses the coil spring 70 disposed behind the sliding members 60A and 60B rearward is provided. As shown in FIGS. 4 and 5, the pressing walls 65 of the first slide member 60 </ b> A are provided at two locations on both sides except the central portion in the width direction (the portion corresponding to the portion where the lock release portion 61 is formed). Each has a long wall shape in the width direction rising upward along the rear edge of the first slide member 60A.

  On the other hand, as shown in FIG. 5, the pressing walls 65 of the second slide member 60 </ b> B are provided at a total of three locations (positions corresponding to the accommodating recesses 25 of the second housing 20 </ b> B) at both ends in the width direction and the central portion. Yes. Each pressing wall 65 has a wall shape that rises upward at the rear end edge of the first slide member 60A. The cross-sectional shape of each pressing wall 65 viewed from the front has a substantially square shape when it is disposed at both ends, and a substantially trapezoidal shape whose width dimension gradually decreases upward when it is disposed at the center. There is no. The pressing wall 65 is adapted to fit into the receiving recess 25 on the lower surface of the second housing 20B, and the second slide member 60B is attached in a form in which the pressing wall 65 is embedded in the second housing 20B.

  A plurality of coil springs 70 (corresponding to the elastic members in the present invention) are provided behind the slide members 60A and 60B. There are a total of three coil springs 70, one behind each pressing wall 65 of the first slide member 60A and one behind each pressing portion of the second slide member 60B, that is, the harness side housing 20. A total of five are provided. The coil springs 70 behind the first slide member 60 </ b> A are respectively disposed at the center position in the width direction of the pressing wall 65.

  The coil springs 70 are arranged at a total of three locations, that is, both ends in the width direction and the center portion on the lower surface of the harness-side housing 20, and on the upper surface of the harness-side housing 20 at two locations corresponding to the space between the coil springs 70 on the lower surface. Arranged, in other words, the coil springs 70 are alternately arranged on the upper surface side and the lower surface side of the harness-side housing 20. The coil spring 70 is disposed between the engagement groove portions 62 of the slide members 60A and 60B, that is, at a position avoiding the position of the engagement groove portion 62. The slide members 60A and 60B are provided with the coil spring 70 from the coil spring 70. Sufficient strength is secured to receive the elastic restoring force.

  The coil spring 70 provided on the rear side of the second slide member 60B is attached in a state of being housed in the housing recess 25 so as not to protrude downward from the second housing 20B together with the pressing wall 65. Thereby, compared with the case where the pressing wall and the coil spring protrude downward from the second housing, the height of the harness-side connector H1 is reduced.

  At the rear end portions of the first housing 20 </ b> A and the second housing 20 </ b> B, in other words, at the rear of the coil spring 70, a restricting portion 30 that restricts the shift of the position of the coil spring 70 to the rear is provided. The restricting portion 30 has a wall shape that protrudes upward and downward along the rear end edges of the first housing 20A and the second housing 20B. The upper and lower restricting portions 30 are provided over the entire width of both the housings 20A and 20B.

  A spring holding portion 31 that holds the rear end portion of each coil spring 70 so as not to escape sideways is provided at a position corresponding to the coil spring 70 in the restriction portion 30. Each spring holding portion 31 includes a peripheral wall portion 31 </ b> A that forms a shape surrounding each coil spring 70, and a shaft portion 31 </ b> B that is fitted into the center of the coil spring 70. A portion of each coil spring 70 held by the spring holding portion 31 is restricted from being deformed radially outward by the peripheral wall portion 31A, and is restricted from being deformed radially inward by the shaft portion 31B.

The harness side connector H1 is assembled as follows.
First, the harness-side housing 20 is assembled by bringing the first housing 20A and the second housing 20B closer to each other from the vertical direction. At this time, the upper edge part which comprises the assembly window part 24 of the 2nd housing 20B contact | abuts to the riding surface 23 of the assembly protrusion 22 of the 1st housing 20A, respectively, and it is assembled along the inclination of the riding surface 23. The two side walls of the second housing 20 </ b> B are elastically expanded laterally along the protrusions 22. Further, when the housings 20 </ b> A and 20 </ b> B are brought closer to each other, the upper edge portion of the assembly window portion 24 gets over the assembly projection portion 22, and the assembly projection portion 22 fits into the assembly window portion 24. In this way, the housings 20A and 20B allow the assembly protrusion 22 to move in the vertical direction within the assembly window 24, and the relationship between the upper surface of the assembly protrusion 22 and the upper edge of the assembly window 24. Accordingly, the two housings 20A and 20B are held so as not to be separated from each other, and the two housings 20A and 20B are assembled so as to be slidable in the vertical direction.

Next, the first slide member 60 </ b> A, the second slide member 60 </ b> B, and the coil spring 70 are attached to the harness side housing 20.
First, each coil spring 70 is positioned so as to fit into the corresponding spring holding portion 31, and each slide member 60 </ b> A, 60 </ b> B is pressed rearward so that each coil spring 70 is elastically contracted. The slide members 60A and 60B are attached to the upper and lower surfaces. Then, each coil spring 70 is restored to the natural state while the position of each engagement groove 62 is aligned with the position of each engagement protrusion 28, that is, when the force that has pushed both slide members 60A and 60B backward is weakened, The slide members 60 </ b> A and 60 </ b> B are pushed by the restoring force of the coil spring 70 to slide forward on the slide surfaces 21 (upper and lower surfaces) of the harness side housing 20, and the engagement protrusion 28 reaches the rear end position of the engagement groove 62. Incidentally, the coil spring 70 reaches a natural state (a state in which it is not elastically stretched). Then, the engagement protrusion 28 reaching the rear end position of the engagement groove 62 prevents the slide members 60A and 60B from sliding further forward, and is fitted with the board-side connector K. In the previous stage, the sliding members 60 </ b> A and 60 </ b> B are prevented from slipping forward and detaching from the harness-side housing 20.

  Finally, the lock arm 50 is attached to the upper surface of the first housing 20A and all the terminals 40 are inserted, and the assembly of the harness side connector H1 is completed. The procedure for assembling the harness-side housing 20 is not limited to this. For example, the first slide member 60A and the second slide member 60B are first attached to the first housing 20A and the second housing 20B, respectively, and then both the housings 20A and 20B are attached. Alternatively, the lock arm 50 may be attached first.

Next, the fitting between the harness-side connector H1 and the board-side connector K assembled as described above will be described.
First, the harness-side connector H1 is brought close to the board-side connector K while positioning so that the harness-side housing 20 is fitted into the hood portion 11. Then, the harness-side housing 20 enters the hood portion 11 together with both slide members 60A, 60B attached to the slide surface 21, and the edge of the circuit board P of the board-side connector K is connected to the harness-side connector H1. It is inserted between the upper and lower elastic contact pieces 46.

  And before the edge part of the circuit board P reaches the contact part 47 of the elastic contact piece 46, the taper surface 64 of both slide members 60A and 60B contacts the contact edge 13A of the contact part 13. When the harness-side connector H1 is further pushed in, the harness-side housing 20 advances forward, but both the slide members 60A and 60B remain in a state where further advancement is restricted by the contact portion 13. And the coil spring 70 is pinched | interposed between the press wall 65 of both slide members 60A and 60B, and the control part 30 of the harness side housing 20, and it elastically shrinks little by little.

  At this time, the engagement protrusion 28 of the harness-side housing 20 passes through the engagement groove 62 of each slide member 60A, 60B toward the front, in other words, each slide member 60A, 60B is relative to the harness-side housing 20. Then, it slides backward while passing the engagement protrusion 28 through the engagement groove 62. Accordingly, it is possible to prevent the slide members 60A and 60B and the harness side housing 20 from being relatively displaced in the width direction during the slide operation.

  Each slide member 60 </ b> A, 60 </ b> B is in a state in which the protrusion 63 of the engagement groove 62 is fitted between the protruding portion 29 of the engagement protrusion 28 and the slide surface 21 of the harness side housing 20, that is, the engagement surface. Since 63A and 29A slide in a state where they are opposed to each other in the vertical direction, even if a force lifting from the slide surface 21 of the harness side housing 20 acts on each slide member 60A and 60B, the contact between the engagement surfaces 63A and 29A Lifting is regulated by contact.

  When the harness-side housing 20 is further pushed in, the coil spring 70 is further elastically contracted, and the harness-side housing 20 moves forward relative to both the slide members 60A and 60B, so that the inside of the hood portion 11 is moved backward (forward). move on. Then, the edge part of the circuit board P is inserted between the contact parts 47 of the connection member 41, and the upper and lower contact parts 47 elastically contact the upper and lower surfaces of the circuit board P as shown in FIG. To the proper mating state. Further, the lock arm 50 that is elastically bent by the lock projection 51 riding on the rear end of the hood portion 11 is elastically restored, and the lock projection 51 is fitted into the lock recess 12 of the hood portion 11 and the substrate-side housing 10. The harness side housing 20 is locked in a proper fitting state (see FIG. 6).

  At this time, all the coil springs 70 are held in an elastic state between the pressing walls 65 of the slide members 60 </ b> A and 60 </ b> B and the restricting portion 30 of the harness-side housing 20. A reaction force that pushes the restricting portion 30 backward acts on the restricting portion 30 by the elastic restoring force of all the coil springs 70, and a force that pushes the pressing wall 65 forward acts on the pressing wall 65. When the pressing wall 65 is pushed forward, the taper surface 64 of each slide member 60A, 60B is pressed against the contact edge 13A, that is, the taper surface 64 is pressed rearward from the contact edge 13A. It is held in a state. As a result, a force is generated on the tapered surface 64 to press the tapered surface 64, that is, the front end portions of the first slide member 60A and the second slide member 60B, toward the first housing 20A and the second housing 20B, respectively. Both housings 20A and 20B are held in a state of being pressed against the circuit board P side by both slide members 60A and 60B. Therefore, when a dent is generated in the contact portion with the contact portion 47 in the circuit board P due to the contact with the contact portion 47 over a long period of time, the first housing 20A or the second housing is correspondingly increased as the dent gradually increases. The housing 20B moves to the circuit board P side. That is, no matter how much the circuit board P is recessed, the first housing 20A and the second housing 20B are held close to the upper surface and the lower surface of the circuit board P according to the recess. As a result, it is possible to avoid a situation where the elastic contact piece 46 is gradually restored and deformed as the dent is generated in the circuit board P, and the restoring force is reduced, and a predetermined contact pressure is reliably ensured. Therefore, the connection between the contact portion 47 and the circuit board P is reliably prevented from becoming unstable due to the creep phenomenon, and the connection reliability is further improved.

  Further, the contact portion 47 reaches the position of the contact edge 13 </ b> A of the hood portion 11 in a state in which the board-side housing 10 and the harness-side housing 20 are properly fitted. The contact portion 47 is arranged at the position of the contact edge 13A, that is, the position where the force pressing the slide members 60A and 60B toward the housings 20A and 20B is the strongest. As a result, it is possible to efficiently secure the connection reliability.

  Further, since both the slide members 60A and 60B are formed in a flat plate shape continuous in the width direction, the force that presses each slide member 60A and 60B generated by the pressing force between the contact edge 13A and the tapered surface 64 is in the plate surface direction. The first and second housings 20A and 20B are evenly pushed by the slide members 60A and 60B. Thereby, as in this embodiment, even in the harness side connector H1 in which a large number of connection members 41 are arranged in the width direction, the connection members 41 can be pressed to the circuit board P side without deviation.

  As described above, according to the present embodiment, the harness-side housing 20 and the board-side housing 10 are elastically compressed in the fitting direction when the coil spring 70 is pressed between the slide members 60A, 60B and the restricting portion 30. Therefore, the taper surface 64 of each slide member 60A, 60B and the contact edge 13A of the hood portion 11 are held in contact with each other by the restoring force of the coil spring 70. Due to the contact between the tapered surface 64 and the contact edge 13A, the slide members 60A and 60B generate a force for pressing the slide members 60A and 60B toward the housings 20A and 20B. The slide members 60A and 60B are held in a state of being pushed to the circuit board P side. Therefore, even if a dent is formed in the contact portion 47 of the connection member 41 at the edge of the circuit board P, both housings 20A and 20B are pushed toward the circuit board P by the restoring force of the coil spring 70. In addition, the connection between the contact portion 47 and the circuit board P is reliably prevented from becoming unstable, and the connection reliability can be improved.

  Further, both slide members 60A, 60B are slid while being corrected so as not to be displaced in the width direction by sliding while the engagement protrusion 28 is passed through the engagement groove 62. In addition, the engaging groove portion 62 and the engaging protrusion 28 are formed with engaging surfaces 63A and 29A that prevent the slide members 60A and 60B from being lifted from the harness-side housing 20 by being engaged with each other. Therefore, the floating of both slide members 60A and 60B is prevented.

  Further, a spring holding portion 31 is provided at a position corresponding to the coil spring 70 in the restricting portion 30, and when the coil spring 70 is pressed with a strong force, the rear end portion thereof deforms so as to escape in the radial direction, Since buckling or the like is prevented, a predetermined restoring force can be obtained with certainty, and connection reliability can be reliably improved.

  Furthermore, since the coil springs 70 are arranged at alternate positions in the first housing 20A and the second housing 20B, the two housings 20A and 20B are pushed toward the circuit board P side (side closer to each other) at the alternate positions. The balance is good.

<Embodiment 2>
Next, a card edge connector according to Embodiment 2 of the present invention will be described with reference to FIGS.
The card edge connector of the present embodiment is a harness-side connector H2 that can be fitted to the edge of the circuit board P and is connected to the end of a wire harness (not shown), and is held in a tensioned state. The embodiment is that the tab portion 111 (corresponding to the connecting member of the present invention) of the terminal 110 is pressed to the circuit board P side by the elastic restoring force of the coil spring 100 (corresponding to the elastic member of the present invention). 1 is different. In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 1, and the overlapping description is abbreviate | omitted.

  Similar to the first embodiment, the harness-side connector H2 includes a harness-side housing 120 (corresponding to a pressing member in the present invention) that fits with an end edge portion of the circuit board P sandwiched in the vertical direction. The harness-side housing 120 has a flat block shape that is long in the width direction as a whole, and is disposed on the upper side of the upper edge portion of the circuit board P and on the lower side of the edge portion of the circuit board P. The lower housing portion 120B is integrally provided. The upper housing part 120A and the lower housing part 120B are substantially joined at the latter half, and are symmetrical with respect to each other's coupling surface.

  A plurality of cavities 122 penetrating in the front-rear direction are juxtaposed in the width direction in substantially the latter half (joint portion) of the upper and lower housing parts 120A, 120B. A terminal 110 connected to the end of the electric wire W constituting the wire harness can be inserted into each cavity 122 from the rear. The terminal 110 has an elongated shape in the front-rear direction as a whole, and is constituted by a main body portion 112 to which the electric wire W is crimped at a rear end portion, and a tab portion 111 that protrudes forward from the front end of the main body portion 112.

  The main body portion 112 of each terminal 110 is accommodated in the cavity 122 and is prevented from being detached by the lance 123, and the tab portion 111 is held in a state of protruding forward from the cavity 122. A front stop wall 124 is formed at the front end of the cavity 122 to stop the main body 112 of the terminal 110, and the front stop wall 124 is inclined to narrow the vertical dimension of each cavity 122 toward the front. There is no.

  The substantially front half portions of the upper housing portion 120A and the lower housing portion 120B each have a form protruding in a cantilevered manner from the coupling portion of the substantially rear half portion, and are in the approach / separation direction (the circuit board P of the circuit board P). It is possible to bend elastically in the direction in which the end edge portion is sandwiched. The substantially front half portions of the upper housing portion 120A and the lower housing portion 120B are an upper terminal pressing portion 121A and a lower terminal pressing portion 121B that press the tab portion 111 of the terminal 110 toward the circuit board P.

  As shown in FIGS. 9 and 10, the upper and lower terminal pressing portions 121 </ b> A and 121 </ b> B are divided into portions corresponding to the cavities 122, and form a block shape that is long in the front-rear direction and protrudes forward of the cavities 122. There is no. The tab portion 111 of the terminal 110 accommodated in the cavity 122 of the upper housing portion 120A is below the upper terminal pressing portion 121A, and the tab portion 111 of the terminal 110 accommodated in the cavity 122 of the lower housing portion 120B is lower. It arrange | positions at the upper side of the side terminal press part 121B, respectively (refer FIG. 8).

  A tapered surface 125 is formed on the upper and lower terminal pressing portions 121A and 121B. The taper surface 125 is formed on the upper surface of the upper terminal pressing portion 121A and the lower surface of the lower terminal pressing portion 121B, and the taper surface 125 of the upper terminal pressing portion 121A is inclined to incline upward toward the front. The taper surface 125 of the pressing part 121B is inclined to be inclined downward toward the front. When the upper and lower terminal pressing portions 121A and 121B are in a natural state, the taper surface 125 protrudes upward and downward from the upper and lower surfaces of the substantially rear half portion of the harness side housing 120, and among the upper and lower terminal pressing portions 121A and 121B. The tab portion pressing surfaces 126 arranged to face each other are substantially parallel (see FIG. 15). At this time, the distance between the tab portion pressing surfaces 126 is set to be larger than the sum of the thickness of the edge portion of the circuit board P and the outer dimensions of the two tab portions 111 of the terminals 110. Yes. In addition, as for the thickness dimension of the up-down direction of the up-and-down terminal press part 121A, 121B, a rear side part is made substantially constant, and the front side part becomes large little by little toward the front.

  Side walls 127 are provided on the sides of the upper and lower terminal pressing portions 121A and 121B. Both side walls 127 protrude forward from the coupling portion of the upper and lower housing portions 120A and 120B, and the front end surfaces thereof are in a side-by-side relationship with the protruding end surfaces of the upper and lower terminal pressing portions 121A and 121B.

  The upper and lower surfaces of the harness side housing 120 are flat as a whole except for the tapered surface 125, and are substantially parallel to each other. Engagement protrusions 128 are provided on the upper and lower surfaces of the harness side housing 120. The engagement protrusion 128 is provided at a position closer to the rear side than the center part in the front-rear direction on both the upper and lower surfaces, in other words, at a substantially center position in the front-rear direction in the connecting portion of the upper and lower housing parts 120A and 120B of the harness-side housing 120. And projecting downward.

  Both ends in the width direction on the rear surface of the harness-side housing 120 (the rear surface of the portion where the side walls 127 are provided) are front spring fixing portions 129 to which the front end portion of the coil spring 100 is fixed. The coil spring 100 is fixed to the center position in the vertical direction of the harness side housing 120 in the front spring fixing portion 129.

  An outer housing 130 (corresponding to the assembly member of the present invention) is assembled to the harness-side housing 120. The outer housing 130 is assembled to the harness-side housing 120 from the rear, and has a flat, substantially rectangular tube shape that can be externally fitted to the harness-side housing 120. The front-rear direction dimension of the outer housing 130 is substantially equal to the front-rear direction dimension of the harness-side housing 120. Even in the assembled state of the outer housing 130 and the harness side housing 120, the cavity 122 of the harness side housing 120 is opened rearward, and the terminal 110 can be inserted into the cavity 122.

  A rear spring fixing portion 131 to which the rear end portion of the coil spring 100 is fixed is provided at the rear end portion of the outer housing 130. The rear spring fixing portion 131 has a substantially rectangular plate shape that protrudes inward (opening side) from both side walls 127 of the outer housing 130, and the plate surface is substantially perpendicular to the wall surfaces of the both side walls 127. Yes. The front spring fixing portion 129 and the rear spring fixing portion 131 have a fixing force capable of holding the coil spring 100 in a tension state.

  Engagement holes 132 into which the engagement protrusions 128 of the harness side housing 120 can be fitted are formed in the upper wall and the lower wall of the outer housing 130. The engagement hole 132 is provided at a position slightly closer to the front side than the center position in the front-rear direction at the approximately center position in the width direction of the outer housing 130. Specifically, the length dimension from the front end position of the outer housing 130 to the engagement hole 132 is equal to or smaller than the length dimension from the rear end position of the tapered surface 125 of the harness side housing 120 to the engagement protrusion 128. ing.

  The engagement hole 132 has a substantially rectangular shape slightly longer in the width direction, and penetrates the upper wall and the lower wall in the wall thickness direction. The dimension in the width direction of the engagement hole 132 is slightly larger than the dimension in the width direction of the engagement protrusion 128, and the dimension in the front-rear direction of the engagement hole 132 is between the engagement protrusion 128 and the engagement hole 132. The dimension is set such that a clearance 123 larger than the clearance 123 in the width direction is secured.

  In a state where the engagement protrusion 128 of the harness-side housing 120 is fitted in the engagement hole 132, the front end portion 133 (corresponding to the tapered surface pressing portion of the present invention) of the outer housing 130 is the rear end position of the tapered surface 125 ( In other words, the tapered surface 125 is arranged to protrude forward from the outer housing 130 (see FIG. 15). When the engagement between the engagement protrusion 128 and the engagement hole 132 is released, the elastic restoring force of the coil spring 100 is released, and the harness-side housing 120 is drawn into the outer housing 130, and accordingly, the outer housing. The front end 133 of 130 is pressed against the tapered surface 125 of the harness-side housing 120. That is, when the engagement protrusion 128 and the engagement hole 132 are engaged with each other, the relative positional relationship between the harness side housing 120 and the outer housing 130 is changed between the tapered surface 125 and the front end portion of the outer housing 130. 133 is held in a non-pressed position. The engagement protrusion 128 and the engagement hole 132 correspond to the engagement portion of the present invention.

  An escape hole 134 is provided at a position behind the engagement hole 132 in the upper wall and the lower wall of the outer housing 130. The escape hole 134 has a substantially square shape and penetrates the upper wall and the lower wall. The width direction dimension is substantially equal to the width direction dimension of the engagement hole 132, and the front-rear direction dimension is the front-rear direction dimension of the engagement hole 132. The dimension is larger than that, in other words, the dimension is larger than twice the longitudinal dimension of the engagement protrusion 128.

  A coil spring 100 is attached between the front side spring fixing part 129 of the harness side housing 120 and the rear side spring fixing part 131 of the outer housing 130. The natural length of the coil spring 100 is smaller than the dimension between the front and rear spring fixing portions 129 and 131 when the engagement protrusion 128 of the harness side housing 120 is disposed at the rear end of the escape hole 134 of the outer housing 130. ing. That is, the coil spring 100 is always in a tensile state when the harness-side housing 120 and the outer housing 130 are assembled.

Next, the fitting between the harness-side connector H2 assembled as described above and the edge portion of the circuit board P will be described.
First, the engagement protrusion 128 of the harness-side housing 120 is engaged with the engagement hole 132 of the outer housing 130, and the edge of the circuit board P is inserted between the upper housing portion 120A and the lower housing portion 120B. In this way, the harness side connector H2 is moved closer to the circuit board P side. At this time, since the upper and lower terminal pressing portions 121A and 121B of the harness-side housing 120 are held in a natural state, the edge portion of the circuit board P extends along the tab portion pressing surface 126 of the upper and lower terminal pressing portions 121A and 121B. The terminals 110 are smoothly inserted between the tab portions 111 of the terminals 110.

  When the edge of the circuit board P is inserted to a predetermined position (position where the conductive path of the circuit board P is disposed between the tab portions 111), the engagement between the engagement protrusion 128 and the engagement hole 132 is released. To do. Then, the force (elastic restoring force) in the direction in which the coil spring 100 contracts is released, and the harness side housing 120 is drawn into the back of the outer housing 130, and the taper surface 125 of the harness side housing 120 and the front end portion 133 of the outer housing 130 are connected. Pressed state. When the taper surface 125 is pressed, the upper and lower terminal pressing portions 121A and 121B are elastically bent in the approaching direction (the direction in which they are intended to be accommodated in the outer housing 130), thereby being arranged inside the tab portion pressing surface 126. The tab portion 111 of the terminal 110 that has been pressed is pressed against the circuit board P side (see FIG. 8).

  At this time, the engagement protrusion 128 released from the engagement with the engagement hole 132 is fitted in the escape hole 134. The engagement protrusion 128 is located on the front end side of the escape hole 134, the rearward movement is not restricted, and the elastic restoring force of the coil spring 100 remains released.

When a recess is generated in the contact portion of the circuit board P with the tab portion 111 due to the contact with the tab portion 111 over a long period of time, the engagement protrusion 128 is gradually released as the recess becomes larger. As the coil spring 100 is moved backward, the upper and lower terminal pressing portions 121A and 121B are held in a state where they are pressed against the circuit board P side. Accordingly, even if the circuit board P is depressed, the tab portion 111 of the terminal 110 is held in a state of being pressed against the upper surface and the lower surface of the circuit board P, and a predetermined contact pressure is reliably ensured. Accordingly, the connection between the tab portion 111 and the circuit board P can be prevented from becoming unstable, and the connection reliability can be further improved.
The connection state between the harness-side connector H2 and the circuit board P is maintained by the force with which the upper and lower terminal pressing portions 121A and 121B sandwich the edge of the circuit board P.

  As described above, in the present embodiment, due to the elastic restoring force of the coil spring 100 held in tension between the harness-side housing 120 and the outer housing 130, the tapered surfaces 125 of the upper and lower terminal pressing portions 121 </ b> A and 121 </ b> B are applied. A force in a direction of pressing the tab portion 111 of the terminal 110 toward the circuit board P is generated. As a result, as in the first embodiment, even if the circuit board P is depressed, the tab portion 111 of the terminal 110 is pressed against the circuit board P side, so that the connection reliability can be improved.

Furthermore, according to the structure of the second embodiment, such an improvement in connection reliability can be realized without providing a hood portion on the circuit board P side.
In addition, when the edge of the circuit board P is inserted into the harness side connector H2, the engagement protrusion 128 is engaged with the engagement hole 132, and the tab portion 111 of the terminal 110 is pressed in the closing direction. It can be left unattended. Thereby, when inserting the edge part of the circuit board P, the contact resistance between the terminal 110 and the tab part 111 can be made small, and the connection operation | work can be performed easily.

<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 above embodiment, the present invention is applied to the circuit board P that is electrically connected to the upper and lower surfaces of the edge portion of the circuit board P and the harness side connector H1 (H2). The present invention can also be applied to one that is connected to only one of the upper and lower surfaces.
(2) In the above embodiment, the coil spring 70 (100) is used as the elastic member. However, the elastic member is not limited to this as long as it can be elastically expanded and contracted in the front-rear direction, and may be a rubber member, for example. .

  (3) In the first embodiment, the terminal 40 is a so-called male terminal fitting, and the connecting member 41 has a rectangular tube shape, and the tab portion 43 of the terminal 40 is inserted into the terminal 40 to connect the terminal 40 and the connecting member. 41 is connected in a conductive manner, but the shape and connection form of both may be any. For example, the terminal fitting is a so-called female terminal fitting and the connecting member is in the front-rear direction. The rear end portion of the connection member may be inserted into the front end portion of the terminal fitting so as to be conductively connected.

  (4) In the first embodiment, the slide members 60A and 60B are formed in a flat plate shape. However, the shape is not limited to this, and any shape can be used as long as the tapered surface 64 is formed at the front end portion. For example, a plurality of columnar slide members that are long in the front-rear direction may be juxtaposed in the width direction.

  (5) In the first embodiment, the engaging groove 62 is formed on each slide member 60A, 60B side, and the engaging projection 28 is formed on each housing 20A, 20B side. An engagement protrusion may be formed on the side, and an engagement groove may be formed on the housing side.

  (6) In the first embodiment, the engagement groove 62 has a shape cut out from the front end edge. However, the present invention is not limited to this, and the engagement groove is a long opening in the front-rear direction with the periphery closed. May be.

  (7) In the first embodiment, the engagement grooves 62 and the engagement protrusions 28 have engagement surfaces 63A and 29A that prevent the slide members 60A and 60B from lifting from the slide surface 21 by engaging with each other. Although it is formed, the present invention is not limited to this, and it is not necessary to form such an engagement surface as long as other measures for restricting lifting are taken.

  (8) In the first embodiment, the coil springs 70 are arranged at alternate positions in the first housing 20A and the second housing 20B. However, the present invention is not limited to this, and the coil springs 70 may be arranged at positions that are aligned vertically. Good.

  (9) In the first embodiment, the terminal 40 is retained by the lance 27. However, in addition to this, the terminal 40 may be secondarily retained by the retainer. At this time, the slide member may be provided with an opening for mounting the retainer.

  (10) In the first embodiment, the engaging protrusion 28 is T-shaped or L-shaped, but is not limited thereto, and is, for example, a cross-sectional shape that forms an inverted triangle toward the protruding direction. May be.

  (11) In Embodiment 1, the restricting portion 30 is integrally provided at the rear end portion of the harness-side housing 20, but not limited thereto, the restricting portion is provided separately from the harness-side housing. Also good.

  (12) In the first embodiment, the first slide member 60A and the second slide member 60B press the first housing 20A and the second housing 20B toward the circuit board P. However, the present invention is not limited thereto. However, the direct connection member may be pressed against the circuit board side.

  (13) In the second embodiment, the coil spring 100 is between the front spring fixing portion 129 provided at the rear end portion of the harness side housing 120 and the rear spring fixing portion 131 provided at the rear end portion of the outer housing 130. Is held in a tension state, but the holding position may be any position as long as the coil spring is held in a tension state, for example, a front spring protruding sideways from the side surface of the harness side housing. You may make it hold | maintain between a fixing | fixed part and the rear side spring fixing | fixed part which protrudes from the side wall of an outer housing.

  (14) In Embodiment 2, a taper surface 125 is formed on the harness-side housing 120, and the front end portion 133 of the outer housing 130 presses the taper surface 125. However, the present invention is not limited to this. A taper surface may be formed on the housing side, and a taper surface pressing portion that presses the taper surface may be provided in the harness side housing.

  (15) In the second embodiment, the engaging portion that holds the tapered surface 125 and the front end portion 133 of the outer housing 130 in a non-pressed state is the relationship between the engaging protrusion 128 of the harness side housing 120 and the outer housing 130. Although it comprised by the joint hole 132, you may comprise by the recessed part of a harness side housing, and the protrusion of an outer housing, for example, without being restricted to this.

  (16) In the second embodiment, the connection state between the harness-side connector H2 and the circuit board P is maintained by the force with which the upper and lower terminal pressing portions 121A and 121B sandwich the edge of the circuit board P. However, the present invention is not limited thereto, and for example, a lock structure that locks the harness side connector and the circuit board in a connected state may be provided.

Side sectional view showing the state before fitting of the harness side connector and board side connector in Embodiment 1 Exploded side view of harness side connector Side view Plan view Front view Partial side sectional view showing a state in which the harness side connector and the board side connector are locked in the normal fitting state Cross-sectional side view showing the normal fitting state of the harness-side connector and the board-side connector The sectional side view showing the state where the harness side connector in Embodiment 2 was fitted in the edge part of a circuit board Top view of the harness side housing Rear view Front view of outer housing Top view of harness side connector Front view Rear view Side sectional view showing a state where the engagement protrusion of the harness side housing and the engagement hole of the outer housing are engaged.

Explanation of symbols

H1, H2 ... Harness side connector (card edge connector)
P ... Circuit board 11 ... Hood part 20 ... Harness side housing (housing)
28 ... engaging protrusions 29A, 63A ... engaging surface 30 ... restricting portion 31A ... peripheral wall portion 31B ... shaft portion 41 ... connecting member 60A ... first slide member (pressing member)
60B ... Second slide member (pressing member)
62 ... engaging groove 64, 125 ... tapered surface 70, 100 ... coil spring (elastic member)
111 ... Tab part (connection member)
120. Harness side housing (pressing member)
130 ... Outer housing (assembly member)
128 ... engagement protrusion (engagement part)
132 ... engagement hole (engagement part)
133: Front end portion of outer housing (tapered surface pressing portion)

Claims (10)

A connection member arranged on at least one of the front and back surfaces of the edge of the circuit board and capable of contacting the edge of the circuit board;
A pressing member disposed on the side opposite to the side in contact with the circuit board in the connecting member;
A taper surface that is formed on the pressing member and receives an elastic restoring force of an elastic member to generate a force in a direction of pressing the connection member toward the circuit board;
A card edge connector comprising: The connection member is provided in a housing that can be fitted between an edge portion of the circuit board and a hood provided on the circuit board side,
The pressing member is attached to the side of the housing opposite to the side on which the connection member is provided, and is slidable in the fitting direction with the hood portion.
The elastic member is arranged on the rear side in the sliding direction of the pressing member,
On the rear side in the sliding direction with respect to the elastic member, a restricting portion for restricting the rearward displacement of the elastic member is provided,
The tapered surface is formed at an end portion on the front side in the sliding direction of the pressing member, and can contact the hood portion.
When the housing and the hood portion are in a normal fitting state, the elastic member is pressed and elastically pressed by the pressing member and the restricting portion, and the taper surface and the hood portion are elastically restored by the elastic restoring force. The card edge connector according to claim 1, wherein the card edge connector is in a pressed state. The connection member is provided in parallel in the width direction of the housing,
The card edge connector according to claim 2, wherein the pressing member has a flat plate shape that extends in a width direction of the housing over a range in which the connection member is disposed in the housing. An engaging groove extending in the sliding direction is formed on one of the opposing surfaces of the pressing member and the housing, and an engaging protrusion capable of passing through the engaging groove is provided on the other surface. And
4. The card edge connector according to claim 2, wherein the pressing member slides while allowing the engagement protrusion to pass through the engagement groove. 5. The engagement groove and the engagement protrusion are formed with an engagement surface that prevents the pressing member from being lifted from the housing by engaging with each other. Card edge connector. The peripheral wall part which makes | forms the shape surrounding the circumference | surroundings of this elastic member is provided in the position corresponding to the said elastic member in the said control part, The Claim 1 thru | or 5 characterized by the above-mentioned. Card edge connector. The elastic member is a coil spring, and a shaft portion that is fitted into the center of the coil spring is provided at a position corresponding to the coil spring in the restricting portion. A card edge connector according to claim 1. The housing is provided in a pair corresponding to both front and back surfaces of the edge portion of the circuit board, and the pair of housings are assembled so as to be slidable in a direction sandwiching the edge portion of the circuit board,
The card edge connector according to any one of claims 2 to 7, wherein the elastic members are arranged at alternate positions in the pair of housings. The elastic member is elastically held in a tensile state between the pressing member and an assembly member that is assembled to be slidable relative to the pressing member,
One of the pressing member and the assembly member is provided with the tapered surface and the other is provided with a tapered surface pressing portion capable of pressing the tapered surface,
The card edge connector according to claim 1, wherein the tapered surface and the tapered surface pressing portion are pressed by an elastic restoring force of the elastic member. The connecting member and the pressing member are arranged on both front and back sides of the edge portion of the circuit board,
By engaging the pressing member and the assembly member with each other, the relative positional relationship between the pressing member and the assembly member is determined so that the tapered surface and the tapered surface pressing portion are not pressed. The card edge connector according to claim 9, further comprising an engaging portion that is held at a position to be.

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