JP2009231069A - Locked connector for fpc - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locked connector for FPC in a space-saving structure with an FPC substrate inserted into the connector for FPC and never easily fallen out therefrom. <P>SOLUTION: The locked connector 1 for FPC has: an opening 3 to insert the FPC substrate thereinto; and an insulating housing 5 in which a contact pin to be electrically connected to the contact of the FPC substrate is formed to make a portion of the contact pin face a connecting space 3a communicating to the opening, and is buried into the housing. The base 6a of the connector is fixed to the insulating housing, the extremity 6b of the base is set in face to face with the connecting space 3a as an elastic piece, and the extremity 6b is swerved by the swerving means of the FPC substrate 2 when inserting. The locking device is provided with a locking click 6 to lock a locking unit 6c into a recess 2d formed on both edges of the FPC substrate 2, so as never to fall the FPC substrate 2 out when the FPC substrate is completely inserted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a flexible printed circuit (hereinafter referred to as FPC) board and a low profile FPC connector used for the connection, which is surface-mounted on a printed board.

Conventionally, as shown in FIG. 10, FPC connectors (Non-ZIF connectors) 20 and (ZIF: Zero Insertion Force) for inserting an FPC board 21 against a certain amount of resistance are known. A ZIF connector having a rotary lock device with zero insertion force of the FPC board is known (see Patent Document 1).
JP 2000-306642 A

  However, since the conventional FPC connector does not have a lock function for fixing the inserted FPC board, there is a problem that the FPC board is pulled out when pulled in the attaching / detaching direction. Also in the ZIF connector, an operation for rotating a slider or the like is required to fix the FPC board after it is inserted into the connector, and it takes time to assemble. Furthermore, when a board | substrate is arrange | positioned just above a ZIF connector, since a slider cannot be rotated, there exists a subject that it cannot be used. The FPC connector with lock according to the present invention has been proposed in order to solve such a problem.

  The gist for solving the above-mentioned problems of the FPC connector with lock according to the present invention is to achieve the object. The contact pin has an opening for inserting the FPC board and is electrically connected to the contact of the FPC board. In an FPC connector comprising an insulating housing embedded and embedded so that a part thereof faces a connecting space communicating with the opening, a base is fixed to the insulating housing, and a tip is an elastic piece. Facing the connecting space, the tip is retracted by the FPC board retracting means when inserted, and when the FPC board is completely inserted, the locking portions of the tip are on both sides of the FPC board in the short direction. That is, a locking device is provided which is formed of an elastic locking claw that is locked to a recess provided at the end portion and locks so that the FPC board does not come out.

  The insulating housing is slidably mounted without projecting to the outside, and is always urged in one direction by an elastic member. When sliding against the urging force, a part of the insulating housing engages with an elastic locking claw. This includes that the elastic locking claw is moved to a position where it does not engage with the concave portion of the FPC board, and an eject plate for releasing the locking action of the FPC board that is mounted and locked in the connection space is provided.

  The gist of the FPC board according to the present invention is that both end portions in the short side direction at the front end portion of the FPC board inserted into the connection space when the FPC connector is attached to the connection space from the opening of the FPC connector. The claw is provided with a recess that is prevented from being pulled out.

  According to the FPC connector with a lock and the FPC board of the present invention, the FPC board having a taper or the like and a recess for engagement at the tip is inserted into the connection space of the FPC connector with a lock. Only the locking action is completed, and the FPC board can be prevented from being detached. Thus, assembly man-hours can be reduced. In addition, since the locking action can be released by sliding the eject plate in the unlocking direction, the eject plate does not protrude to the outside of the FPC connector with lock, and space saving is realized. Therefore, there is no particular need for an ejection space around the FPC connector with a lock, and other electronic components can be arranged close to each other, thereby effectively utilizing the space.

  The FPC connector 1 with a lock according to the present invention has an opening 3 into which the FPC board 2 is inserted, as shown in FIGS. 1 to 2, and is a contact that is electrically connected to the contact 2a of the FPC board 2. The pin 4 is composed of an insulating housing 5 which is embedded and buried so that a part of the pin 4 faces the connection space 3a communicating with the opening 3.

  The base 6a is fixed to the insulating housing 5, the tip 6b is an elastic piece and faces the connection space 3a, and the tip 6b is provided at both ends of the tip 2b of the FPC board 2. The taper 2c as a retracting means is expanded in the direction orthogonal to the insertion direction.

  Furthermore, when the insertion of the FPC board 2 is completed, as shown in FIG. 4, locking portions 6 c bent in a U shape are provided at both end portions in the short direction of the FPC board 2 at the distal end portion 6 b. There is provided a locking device comprising an elastic locking claw 6 that is locked to the recessed portion 2d and locks so that the FPC board 2 does not come out. As shown in FIG. 3B, the elastic locking claw 6 in this locking device is provided with an ejection locking piece 6 d for ejection standing up from the side end surface on one side of the elastic locking claw 6. Yes.

  Further, as shown in FIGS. 1 and 4A, 4B, and 4C, the insulating housing 5 is slidably mounted without projecting to the outside, and is always fixed by an elastic member 7 such as a coil spring. When it is urged in the direction and slid against the urging force, a part, that is, a taper portion 8a formed in the punching space portion engages with the elastic locking claw 6, and more specifically, for the ejection The FPC board which is engaged with the locking piece 6d, is pulled out to a position where the locking part 6c of the elastic locking claw 6 is not engaged with the recess 2d of the FPC board 2 and is mounted and locked in the connection space 3a. An eject plate 8 for releasing the locking action 2 is provided.

  The eject plate 8 is bent in a semicircular arc shape at both ends in the longitudinal direction, and is slidably engaged with curved engagement portions formed at both ends of the insulating housing 5. The eject plate 8 only slides in the upper plane of the insulating housing 5, and there is no protrusion in the front-rear direction or the vertical direction, so that there is no hindrance in the arrangement design of the surrounding electronic components. The eject plate 8 is pushed backward by placing a finger on the front pressing portion 8b.

  Further, as shown in FIG. 2, the FPC board 2 according to the present invention is provided with a retracting portion of the locking portion 6c at both ends of the front end portion 2b attached to the connection space portion 3a from the opening portion 3 of the FPC connector 1. As a means, a taper 2c is formed for spreading in a direction orthogonal to the insertion direction. In addition, recesses 2d are provided at both end portions in the lateral direction within the range of the tip portion 2b of the FPC board inserted into the connection space portion 3a. The locking portion 6c of the elastic locking claw 6 falls into the recess 2d and is engaged so as not to come out of the connection space portion 3a, and the FPC board 2 is locked.

  As described above, the FPC connector 1 with lock and the FPC board 2 are configured, and as shown in FIGS. 5A to 5D, the FPC board 2 is connected from the opening 3 to the connection space 3a. When the eject plate 8 is pushed rearward, the taper portion 8a bends the engaging portion 6c outwardly as shown in FIG. The locking portion 6c comes out of 2d and the locking action is released. Therefore, the FPC board 2 can be easily detached from the FPC connector 1 with lock.

  As a second embodiment of the FPC connector with lock 1a according to the present invention, as shown in FIGS. 6 to 7, an eject part and a lock part are integrated into a lock-eject plate 9. FIG. This lock / eject plate 9 has an engaging claw 9b for locking, a release lever portion 9a for unlocking is integrally formed, and is rotated by a fulcrum portion 10a of the cover 10. Thus, the number of parts can be reduced. In the second embodiment, the substrate itself (plate thickness) of the FPC substrate 2 serves as a retracting means that pushes up the engaging claw 9b to retract it. Therefore, the taper 2c is unnecessary on the FPC board 2 side.

  In the third embodiment, as shown in FIG. 8, in the FPC connector with lock 1b, the locking elastic locking claw 11 has a locking claw 11a for engagement and a pushing portion 11b for ejection. The locking claw 11a is pushed down by the board itself (plate thickness) of the FPC board 2 as a retracting means, and then engages with the recess 2d of the FPC board 2. When releasing it, a tool 12 as a separate member is used, and the pushing portion 11b is pushed downward by the ejecting projection 12a of the tool 12 to release the engagement of the locking claw 11a. This is because when the FPC board 2 is inserted into the FPC connector 1b with a lock that is surface-mounted at a deep position on the printed board, a finger cannot be inserted by surrounding electronic devices. In such a case, the FPC board 2 can be attached and detached by using the tool 12.

  In the fourth embodiment, as shown in FIG. 9, in the FPC connector with lock 1c, the locking claw 11a moves up and down to lock for the elastic locking claw 11 of the third embodiment, Moreover, it is comprised so that it may cancel | release, and the eject plate 13 is slidable back. In this case, the taper 2c is not required for the FPC board 2, and the board itself (plate thickness) of the FPC board 2 is a retreat means, thereby pushing down the locking claw 11a. The eject plate 13 returns to its original position after sliding backward using the elastic bent portion 13a at the front portion as an elastic reaction force portion.

Plan view (A), front view (B), side view (C), bottom view (D), rear view (E), cross-sectional view along line YY of FPC connector 1 with lock according to the present invention (F). It is a top view of the FPC board 2 of the same invention. They are a partial top view (A) of the elastic latching claw 6 in the connector 1 for FPC with a lock | rock, and a partially expanded perspective view (B). In the FPC connector 1 with the lock, a plan view (A) showing an engagement state of the ejection plate 8 and the ejection locking piece 6d, an operation explanatory view (B) showing a state of releasing the locking, It is a part expansion perspective view (C). It is explanatory drawing (A)-(D) explaining operation | movement of fitting and removal | desorption with the connector 1 for FPC with a lock | rock, and the FPC board | substrate 2. FIG. It is explanatory drawing which shows the use condition of the connector 1a for FPC with a lock | rock which concerns on 2nd Example. It is a partial longitudinal cross-sectional view of the fitting state which concerns on the 2nd Example. It is an exploded explanatory perspective view which shows the use condition of FPC connector 1b with a lock | rock which concerns on 3rd Example. It is an exploded explanatory perspective view which shows the use condition of FPC connector 1c with a lock | rock which concerns on 4th Example. It is explanatory drawing which shows the use condition of the connector 20 for FPC and the FPC board | substrate 21 which concern on a prior art example.

Explanation of symbols

1, 1a, 1b, 1c FPC connector with lock,
2 FPC board, 2a contact,
2b tip, 2c taper,
2d recess,
3 opening, 3a space for connection,
4 Contact pins,
5 Insulating housing,
6 elastic locking claws, 6a base,
6b tip part, 6c locking part,
6d Eject locking piece,
7 elastic members,
8 Eject plate, 8a Tapered part,
8b push section,
9 Eject plate for both lock and use, 9a Release lever,
9b engaging claw,
10 cover, 10a fulcrum,
11 elastic locking claw, 11a locking claw,
11b pushing part,
12 tools, 12a projections for ejection,
13 Eject plate, 13a Elastic bent part,
20 FPC connector according to a conventional example,
21 FPC board according to a conventional example.

Claims (3)

An insulating housing having an opening into which the FPC board is inserted, and a contact pin that is electrically connected to the contact of the FPC board is embedded and buried so that a part thereof faces the connection space that communicates with the opening. In the FPC connector consisting of
The base is fixed to the insulating housing, the tip is an elastic piece and faces the connection space, and the tip is retracted by the FPC board retracting means when the FPC board is completely inserted. A locking device comprising an elastic locking claw that locks the FPC board so that the FPC board does not come out by locking the locking part of the tip part to the recesses provided on both side ends of the FPC board in the short direction. Is provided,
An FPC connector with a lock characterized by It is slidably mounted on the insulating housing without projecting to the outside, and is always urged in one direction by the elastic member. When it is slid against the urging force, a part of it engages with the elastic locking claw and this elasticity An eject plate for moving the locking claw to a position where it does not engage with the recess of the FPC board and releasing the locking action of the FPC board that is mounted and locked in the connection space;
The FPC connector with a lock according to claim 1. When it is installed in the connection space from the opening of the FPC connector,
A concave portion is provided in which a claw is locked at both end portions in the short-side direction of the front end portion of the FPC board inserted into the connection space portion to prevent extraction;
FPC board characterized by

Images