JP3107000U - Electrical connector for FPC - Google Patents

Abstract

An electrical connector for FPC that is easily manufactured and attached, increases manufacturing efficiency, and prevents the rotating cover from being detached from the insulating housing when it receives the elastic force of the terminal during rotation. provide.
An electrical connector for FPC includes an insulating housing, a plurality of terminals, and a rotating cover. The insulating housing is provided with a plurality of insertion grooves 200 and receiving grooves, and the terminals are mounted in the inserting grooves and receiving grooves of the insulating housing. The rotating cover is held by an insulating housing and is supported so as to be rotatable between a closed position and an open position separated from the closed position. The pivot cover has a pivot shaft 32 provided at both ends and a support portion 34 projecting from one end of the pivot shaft. The insulating housing has a pivot portion 240 and a concave portion for receiving the pivot shaft and the support portion. Grooves 242 are provided, respectively, and the rotation cover rotates between the closed position and the open position with the central axis of the pivot portion as the rotation axis.
[Selection] Figure 3

Description

  The present invention relates to an electrical connector for FPC that can connect flat flexible cables generally referred to as FPC, FFC, and the like (in this specification, these are collectively referred to simply as “FPC”).

  Conventionally, such an FPC electrical connector basically includes an insulating housing, a plurality of terminals arranged side by side at a predetermined pitch on the insulating housing, and a rotating cover that presses the FPC to the contact portion of the terminal. It is set as the structure provided with. The rotating cover can be rotated between a closed position and an open position separated from the closed position. In the closed position, the FPC is pressed and electrically connected to the terminal, while in the open position, the FPC is taken away from the terminal (see, for example, Patent Document 1).

  As shown in FIGS. 1 and 2, this known conventional FPC electrical connector 6 includes an insulating housing 7, a plurality of first terminals 70 and a plurality of first terminals 70 arranged in parallel to intersect the insulating housing 7. A two-terminal 72 and a rotation cover 8 that is rotatably supported in the insulating housing 7 are included.

  Receiving holes 282 are provided at both ends of the insulating housing 7, and turnable protrusions 86 that are rotatable corresponding to the receiving holes 282 are provided at both ends of the turning cover 8. Long grooves 80 and short grooves 82 are alternately arranged in parallel on the top wall of the rotating cover 8, and a cam 84 is provided at the rear end of the long groove 80. The second terminal 72 includes a fixing part 720, an upper support part 722, a second contact part 724, a lower support part 726 arranged in a three-stage shape from the fixing part 720, and a second soldering part 728. Is provided. The upper support portion 722 is provided with a recess 730 that rotatably accommodates the cam 84 of the rotation cover 8. After the attachment, the rotation cover 8 can be rotated between the closed position and the open position with the central axis of the cam 84 as the rotation axis.

  However, in the above case, the central axis of the cam 84 of the rotating cover 8 needs to be on the same straight line. Thus, the manufacturing accuracy and the mounting accuracy can be increased, but the cost increases and the manufacturing efficiency decreases. In addition, when the rotating cover 8 receives the elastic force of the first terminal 70 and the second terminal 72 when rotating toward the closed position, the rotating cover 8 may be detached from the insulating housing 6.

Therefore, it is necessary to develop a new type of FPC electrical connector in which the disadvantages of the conventional FPC electrical connector are improved.
Chinese Utility Model Application No. 20030110393.9 Specification

It is an object of the present invention to provide an FPC electrical connector that is easily manufactured and attached and has an improved manufacturing efficiency.
It is another object of the present invention to provide an FPC electrical connector that prevents the rotating cover from being detached from the insulating housing when it receives the elastic force of the terminal during rotation.

  In order to achieve the above object, the FPC electrical connector of the present invention comprises an insulating housing, a plurality of terminals, and a rotating cover. The insulating housing has a plurality of insertion grooves and receiving grooves. The terminal is attached to the insertion groove and the receiving groove of the insulating housing, and has a contact portion and a pressing portion that are in pressure contact with the FPC. The rotating cover is held by an insulating housing and is rotatably supported between a closed position and an open position separated from the closed position, and a contact hole for receiving the pressing portion of the terminal, contact between the FPC and the terminal And a pressurizing part for contacting the part. The pivot cover includes a pivot shaft provided at both ends and a support portion projecting from one end of the pivot shaft, and the insulating housing includes a pivot portion and a recess that accommodate the pivot shaft and the support portion. A groove is provided, and the rotating cover rotates between the closed position and the opened position with the central axis of the pivot portion as a rotating axis, and the rotating cover rotates toward the opened position. There is a gap between the pressing portion of the terminal and the pressing portion of the rotating cover.

  Compared with the prior art, the present invention has the following effects. A pivot shaft is provided at each end of the pivot cover, and a pivot portion for pivotally receiving the pivot shaft is provided in the insulating housing. Therefore, in production, it is only required that the pivot center of the pivots, that is, the central axis, be on the same straight line, thereby reducing the requirements for manufacturing and mounting accuracy, reducing the cost, and increasing the manufacturing efficiency. be able to. At the same time, the pivot shaft of the rotating cover has a support portion accommodated in the recessed groove of the insulating housing. A convex portion extends from the inner wall to the concave groove. When the rotating cover is rotated, the support portion comes into contact with the concave groove of the insulating housing, so that the rotating cover cannot be detached from the insulating housing even if it receives the elastic force of the terminal.

  The FPC electrical connector according to the present invention will be described with reference to FIGS. The FPC electrical connector 1 of the present invention includes an insulating housing 2, a rotating cover 3 rotatably held by the insulating housing 2, and a plurality of side-by-side arrangements at a predetermined pitch on the insulating housing 2. It includes a terminal 4 and a pair of fixing members 5 that are locked to the insulating housing 2.

  As shown in FIGS. 3 and 4, the insulating housing 2 includes a rectangular housing portion 20, a receiving portion 22 formed to extend forward from the housing portion 20, and both longitudinal ends of the housing portion 20. The arm includes a pair of arm portions 24. A plurality of insertion grooves 200 are provided on the wall of the housing portion 20 that contacts the receiving portion 22. The receiving portion 22 is provided with a number of receiving grooves 220 aligned in parallel corresponding to the insertion grooves 200.

  The arm portion 24 is integrated with the housing portion 20 and the receiving portion 22, and a pivotal support portion 240 having a semi-cylindrical surface is provided on the side of the arm portion 24 that contacts the receiving portion 22. A concave groove 242 that penetrates the pivotal support 240 is provided on the side of the pivotal support 240 that is close to the arm 24. A convex portion 244 accommodated in the concave groove 242 extends from the inner wall 2420 intersecting the arm portion 24 of the concave groove 242, one end of the convex portion 244 is integral with the arm portion 24, and the other end is the arm portion. 24 and a distance.

  The arm portion 34 is provided with a receiving hole 246 extending in the front-rear direction. The front end surface of the arm portion 24 is provided with a protruding portion 248 that extends forward from a position close to the accommodation hole 246. The protrusion 248 includes a stepped top surface 2480, a side surface 2482, a bottom surface 2484, and a front surface 2486.

  As shown in FIGS. 3 and 5, the rotation cover 3 is installed at the base 30, the pivot shaft 32 extending from both ends of the base portion 30 in the longitudinal direction, and one end of each pivot shaft 32. The support part 34 is included. When the rotating cover 3 is rotated toward the closed position, the base 30 that contacts the accepting portion 22 of the insulating housing 2 includes an upper wall 300, a lower wall 302, a front wall 304, and an upper wall 300. And a rear wall 306 connected obliquely to the lower wall 302. The front wall 304 is provided with two notches 3040 for convenient operation of the rotating cover 3 (see FIG. 6), and the rear wall 306 is provided with a plurality of receiving holes 3060.

  Referring to FIG. 8 at the same time, the rear end of the rotating cover 3 is provided with a pressurizing unit 3062 that presses the FPC 6 (shown by a broken line) when the rotating cover 3 rotates toward the closed position. . In this embodiment, the pivot shaft 32 rotatably accommodated in the pivot portion 240 of the insulating housing 2 has a semi-cylindrical shape and includes a flat surface 320 and a cam surface 322. The support portion 34 that contacts the concave groove 242 and the convex portion 244 of the insulating housing 2 is formed of a part of a cylindrical ring, and includes a first arc surface 340 and a second arc surface 342.

  Therefore, a surface that contacts the pivot shaft 32 in the pivot portion 240, a surface that contacts the first arc surface 340 of the support portion 34 in the convex portion 244, and a second arc surface 342 of the support portion 34 in the concave groove 242. The contact surface is a smooth arc surface. The plane 320 of the pivot shaft 32 and the upper wall 300 of the base 30 are installed on a substantially flush surface. The distance between the upper wall 300 and the lower wall 302 of the base 30 is smaller than the distance between the flat surface 320 of the pivot shaft 32 and the lowest point of the cam surface 322.

  Referring to FIGS. 6 and 7 at the same time, when mounting, the pivot shaft 32 of the rotating cover 3 is installed on the pivot portion 240 of the insulating housing 2, and the support portion 34 is received in the concave groove 242. The rotation cover 3 can be rotated between the open position and the closed position separated from the open position, with the central axis of the pivotal support 240 and the central axis of the cylindrical surface of the pivotal support shaft 32 as rotation axes. At this time, the support portion 34 comes into contact with the convex portion 244 to generate a force in the radial direction, so that the rotating cover 3 does not come off the insulating housing 2 even if it receives the elastic force of the terminal 4.

  As shown in FIG. 6, a plurality of the terminals 4 are mounted side by side at a predetermined pitch from the rear end side of the accommodating portion 20 of the insulating housing 2. In each terminal 4, the contact beam 40 and the holding beam 42 extend from the base body 44 in a cantilever shape. When the terminal 4 is attached to the insulating housing 2, the contact beam 40 is received by the receiving portion 22 of the insulating housing 2. The holding beam 42 extends along the insertion groove 200 of the insulating housing 2 so as to face the upper side thereof.

  As shown in FIGS. 8 to 10, a locking portion 422 is provided at the end of the holding beam 42 close to the base 44 so as to be locked and fixed to the insulating housing 2. Further, a soldering portion 440 projects rearward from the lower portion of the base 44 of the terminal 4 so that the soldering portion 440 can be soldered to a circuit board (not shown). A contact portion 400 that press-contacts the FPC 6 is provided at a free end of the contact beam 40. A free end of the holding beam 42 shorter than the contact beam 40 includes a pressing portion 420 that is rotatably supported in the accommodation hole 3060 of the rotation cover 3.

  When the rotating cover 3 rotates toward the closed position, the pressing portion 420 of the terminal 4 presses the pressing portion 3062 of the rotating cover 3, and the pressing portion 3062 exerts the elastic force of the terminal 4. By being received, the FPC 6 is in close contact with the surface of the FPC 6, and the FPC 6 is further pressed into contact with the contact beam 40 of the terminal 4. In this way, the FPC 6 and the terminal 4 are reliably electrically connected, and the rotation cover 3 is prevented from rotating in the detaching direction even when receiving the elastic force of the contact portion 400 of the terminal 4.

  Referring to FIGS. 6 and 7, the fixing member 5 includes a bottom wall 50, a side wall 52 extending from one end of the bottom wall 50, and a top extending from the top end of the side wall 52 in a direction parallel to the bottom wall 50. A wall 54 and a fixed wall 56 extending from one end of the side wall 52 are included. When the fixing member 50 is attached, the fixing wall 56 is mounted in the receiving hole 246 of the insulating housing 2, and the bottom wall 50, the side wall 52, and the upper wall 54 are the top surface of the protruding portion 248 of the insulating housing 2. 2480, bottom surface 2484 and side surface 2482 are in intimate contact with each other. Further, the FPC electrical connector 1 is fixed to the circuit board by soldering the bottom wall 50 to a circuit board (not shown).

  As shown in FIG. 8, when the rotating cover 3 is brought to the upper open position, a gap is generated between the pressing portion 3062 and the pressing portion 420 of the terminal 4. When the rotating cover 3 rotates about the central axis of the pivotal support 240 and the central axis of the cylindrical surface of the pivotal shaft 32, the pressurizing unit 3062 of the rotational cover 3 presses the terminal 4 as shown in FIG. The part 420 is pressed. Next, when the rotation cover 3 is rotated toward the lower closed position, that is, as shown in FIG. 10, the pressing portion 3062 is pressed tightly against the pressing portion 420 of the terminal 4. Therefore, the pressurizing unit 3062 receives an elastic force directed downward of the terminal 4 and presses against the FPC 6. Therefore, the FPC 6 is reliably electrically connected to the terminal 4.

  In general, both the structure and function of the present invention, such as the numerous features and advantages of the present invention, are listed in the foregoing description. The above description is intended to be within the scope of the claims of the present invention, such as modification or change of details that can be made based on the present invention.

  The present invention relates to an electrical connector, and more particularly to a stacked electrical connector attached to a circuit board.

It is an exploded view perspective view of the FPC electrical connector according to the conventional example. It is sectional drawing of the electrical connector for FPC shown in FIG. It is a disassembled perspective view of the electrical connector for FPC which concerns on this invention. It is an expansion perspective view shown to A of the electrical connector for FPC shown in FIG. It is an expansion perspective view shown to B of the electrical connector for FPC shown in FIG. It is a perspective view of the state which rotated the rotation cover of the electrical connector for FPC which concerns on this invention to the closed position. It is a perspective view of the state which rotated the rotation cover of the electrical connector for FPC which concerns on this invention to the open position. It is sectional drawing cut | disconnected by the AA line of the electrical connector for FPC shown in FIG. It is sectional drawing cut | disconnected by the AA line of the state which has put the rotation cover of the electrical connector for FPC shown in FIG. 7 between the open position and the closed position. It is sectional drawing cut | disconnected by the BB line of the electrical connector for FPC shown in FIG.

Explanation of symbols

1, 6 FPC electrical connector 2, 7 Insulating housing 3, 8 Rotating cover 4 Terminal 5 Fixing member 6 FPC
20 receiving portion 22 receiving portion 24 arm portion 30 base portion 32 pivot shaft 34 support portion 40 contact beam 42 holding beam 44 base 50 bottom wall 52 side wall 54 upper wall 56 fixed wall 70 first terminal 72 second terminal 80 long groove 82 short Groove 84 Cam 200 Insertion groove 220 Receiving groove 240 Pivoting portion 242 Concave groove 244 Protruding portion 246 Receiving hole 248 Protruding portion 282, 3060 Receiving hole 300 Upper wall 302 Lower wall 304 Front wall 306 Rear wall 320 Plane 322 Cam surface 340 First arc Surface 342 Second arc surface 400 Contact portion 420 Pressing portion 422 Locking portion 440 Soldering portion 720 Fixed portion 722 Upper support portion 724 Second contact portion 726 Lower support portion 728 Second soldering portion 730 Recessed portion 2420 Inner side wall 2480 Top surface 2482 Side 2484 Bottom 2486 Front 3040 Off Part 3062 pressurizing

Claims (15)

An insulating housing provided with a plurality of insertion grooves and receiving grooves;
A plurality of terminals mounted in the insertion groove and the receiving groove of the insulating housing and provided with a pressing portion and a contact portion that press-contacts the FPC;
It has an accommodation hole for accommodating the pressing portion of the terminal and a pressurizing portion for contacting the contact portion of the FPC and the terminal, and is supported so as to be rotatable between a closed position and an open position separated from the closed position. A rotating cover held in an insulating housing;
The pivot cover includes a pivot shaft provided at both ends and a support portion projecting from one end of the pivot shaft, and a pivot housing the pivot shaft and the support portion in the insulating housing. A support portion and a recessed groove are provided, respectively, and the rotation cover rotates between the closed position and the open position with the central axis of the support portion as a rotation axis, and the rotation cover rotates toward the open position. An electrical connector for FPC having a gap between the pressing portion of the terminal and the pressing portion of the rotating cover when moved.   A convex portion extends from the inner wall of the insulating housing into the concave groove, and the support portion comes into contact with the convex portion and generates a force in a radial direction while the rotary cover is rotating, so that the rotary cover is generated. The electrical connector according to claim 1, wherein the connector is prevented from coming off from the insulating housing when receiving an elastic reaction force of the terminal.   3. The FPC electrical connector according to claim 2, wherein the pressing portion of the terminal starts to contact the pressing portion of the rotating cover after the rotating cover is rotated from the open position to a predetermined position.   After the rotating cover is rotated toward the closed position, the pressing portion presses the FPC and receives the elastic force of the pressing portion of the terminal, thereby bringing the FPC and the pressing portion of the terminal into close contact with each other. The FPC electrical connector according to claim 3.   5. The FPC electrical connector according to claim 4, wherein the pivot shaft has a semi-cylindrical shape, and a surface of the pivot portion that contacts the pivot shaft is a smooth arc surface.   The electrical connector according to claim 5, wherein the support portion is formed of a part of a cylindrical ring, and surfaces of the convex portion and the concave groove that respectively contact the support portion are smooth arc surfaces. An insulating housing provided with a plurality of insertion grooves;
A plurality of terminals mounted in the insertion groove of the insulating housing;
A rotating cover supported in an insulative housing and rotatably supported between a closed position and an open position separated from the closed position in order to ensure electrical connection between the FPC and the terminal;
The pivot cover includes a pivot shaft provided at both ends and a support portion projecting from a side edge of the pivot shaft, and the insulating housing accommodates the pivot shaft and the support portion. An electrical connector for FPC, characterized in that a pivot part and a concave groove are provided, respectively, and the pivot cover pivots between a closed position and an open position about the geometric center of the pivot part as a pivot axis.   A projecting portion extends from the inner wall of the insulating housing into the recessed groove, and the support portion contacts the projecting portion and generates a force in the radial direction while the pivoting cover is pivoting. The electrical connector according to claim 7, wherein the connector is prevented from being detached from the insulating housing when receiving an elastic reaction force of the terminal.   The electrical connector according to claim 7, wherein the terminal is provided with a contact portion and a pressing portion that are in electrical pressure contact with the FPC.   The electrical connector according to claim 9, wherein the rotating cover includes a receiving hole that receives a pressing portion of the terminal and a pressurizing portion that contacts the contact portion of the terminal.   The electrical connector according to claim 10, wherein a gap is provided between the pressing portion of the terminal and the pressing portion of the rotating cover when the rotating cover is rotated toward the open position.   The electrical connector for FPC according to claim 11, wherein the pressing portion of the terminal starts to come into contact with the pressing portion of the rotating cover after the rotating cover is rotated from the open position to a predetermined position.   After the rotating cover is rotated toward the closed position, the pressing portion presses the FPC and receives the elastic force of the pressing portion of the terminal, thereby bringing the FPC and the pressing portion of the terminal into close contact with each other. The electrical connector for FPC according to claim 12, wherein:   14. The FPC electrical connector according to claim 13, wherein the pivot shaft has a semi-cylindrical shape, and a surface of the pivot portion that contacts the pivot shaft is a smooth arc surface. The electrical connector according to claim 14, wherein the support portion is formed of a part of a cylindrical ring, and surfaces of the convex portion and the concave groove that respectively contact the support portion are smooth arc surfaces.

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