JPH0517968U - Flexible printed wiring board connector - Google Patents

Abstract

(57) [Summary] [Purpose] The FPC can be inserted into the FPC insertion hole without insertion / removal force, and even if the user forgets to lock the cover. [Structure] Each contact 4 is housed in each contact housing chamber 3 so as not to project to the FPC insertion hole 2 side in the standby state. By providing a pressure piece insertion hole 10 on the back side of each contact 4 and pressing the pressure piece 7 into the pressure piece insertion hole 10, the contact 4 is pushed out into the FPC insertion hole 2,
The pattern of the PC 8 is pressure-contacted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flexible printed wiring board connector capable of inserting and removing a flexible printed wiring board with no insertion and removal force (ZIF).

[0002]

[Prior Art]

 A conventional FPC connector for inserting / removing a flexible printed wiring board (hereinafter referred to as FPC) with no insertion / removal force has a connector housing 1 as shown in FIG. 3, and the connector housing 1 has a long hole. An FPC insertion hole 2 is provided. Further, the housing 1 is provided with a plurality of contact accommodating chambers 3 along the FPC insertion hole 2 at predetermined intervals in a direction orthogonal to the FPC insertion hole 2.

A contact 4 is accommodated in each contact accommodating chamber 3 with a part of the contact 4 protruding toward the FPC insertion hole 2 side. A cover 5 is detachably provided on the inlet side of the connector housing 1. The cover 5 is provided with a pressure piece 7 that is inserted into the FPC insertion hole 2 to press the FPC 8 and each contact 4 into contact with each other.

Both ends of the cover 5 and the connector housing 1 are provided with male and female lock tools 9 a and 9 b for locking the cover 5 to the connector housing 1.

In such an FPC connector, the FPC is inserted into the FPC insertion hole 2 with the cover 5 removed.

In this state, the FPC can be inserted into the FPC insertion hole 2 with a low insertion / extraction force close to the non-insertion / extraction force. Next, the pressure piece 7 is inserted into the FPC insertion hole 2 to lock the locks 9a and 9b and the cover 5 on the connector housing 1. In this state, the FPC is brought into pressure contact with each contact 4 by the pressure piece 7, so that electrical continuity between each terminal pattern of the FPC and each contact 4 can be ensured.

[0007]

[Problems to be solved by the device]

 However, in such a conventional structure, due to the contact with the FPC 8, a part of each contact 4 must be projected toward the FPC insertion hole 2 side, so that the protruding length of each contact 4 is too long. In this case, when the FPC 8 is inserted into or removed from the FPC insertion hole 2, there is a frictional resistance, and there is a problem that the FPC 8 cannot be inserted into or removed from the FPC insertion hole with no insertion / extraction force.

In addition, in such a conventional FPC connector, the state in which the cover 5 is forgotten to be locked and the pressing piece 7 is floating is performed by confirming the continuity between the terminal pattern of the FPC 8 and each contact 4 ( When the continuity cannot be obtained, it is judged that the lock is insufficient or the lock is forgotten.) However, since each contact 4 protrudes to the FPC insertion hole side, the continuity is achieved even if the lock is forgotten. However, there is a problem in that there is a case where a wrong judgment is made that the lock is made.

An object of the present invention is to provide an FPC connector that can insert / remove the FPC 8 into / from the FPC insertion hole with no insertion / removal force and can detect whether the cover is locked or not.

[0010]

[Means for Solving the Problems]

 A feature of the present invention for achieving the above object is that a flexible printed wiring board insertion hole is provided in a connector housing, and a plurality of contact accommodating chambers are provided at predetermined intervals along the flexible printed wiring board insertion hole. An insertion hole is provided, a contact is accommodated in each of the contact accommodating chambers, and the connector housing is inserted into the connector housing to press-contact the flexible print wiring board and the contacts. In a connector for a flexible wiring board provided with a pressurizing piece for holding the contacts, the contacts are housed in the contact housing chambers so as not to project toward the flexible printed wiring board insertion hole side in the standby state. On the back side of each contact in the connector housing In that these contact pressing piece insertion hole for inserting a pressing piece for pushing the flexible printed circuit board insertion hole is provided.

[0011]

[Action]

 In this FPC connector, the FPC is inserted into the FPC insertion hole, the pressure piece is inserted into the pressure piece insertion hole on the back side of each contact, and each contact is pushed out to the FPC side only after locking. Conduction with the terminal pattern of the FPC is obtained.

Therefore, when the pressing piece is not inserted, that is, when the cover is forgotten to be locked, each contact is not projected into the FPC insertion hole, so that the FPC can be inserted without inserting and removing force.

Further, in the state where the locking is forgotten, if the conduction check is performed, the conduction cannot be obtained, so that it can be easily confirmed.

[0014]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. The parts corresponding to those in FIG. 3 described above are designated by the same reference numerals.

As shown in the figure, in the FPC connector of this embodiment, each contact 4 is housed in the contact housing chamber 3 in the standby state so as not to project into the FPC insertion hole 2 as shown in FIG.

A pressure piece insertion hole 10 is provided on the back side of the row of each contact 4.

A taper surface 7 a is provided at the tip of the pressing piece 7 provided on the cover 5 on the side that first contacts the contact 4, and a projection 7 b is provided at the rear end of the taper surface 7 a. Is provided.

Correspondingly, the tip of the contact 4 is provided with a taper surface 4a on the side that comes into contact with the pressure piece 7 first, and the projection 4b is provided at the rear end of the tapered surface 4a. It has been done.

On both front and rear sides of the contact 4, an FPC side reaction force forming arm 11 and a pressure piece side reaction force forming arm 12 are arranged in the same direction from a common base 13 at intervals.

A terminal portion 14 is integrally projected from the base portion 13 in the opposite direction to the contact 4. The contact 4, the arms 11 and 12, the common base 13 and the terminal 14 are integrally formed by punching out a single metal plate.

On the other hand, in the housing 1, an FPC side reaction force forming arm insertion hole 15 is adjacent to the FPC insertion hole 2, and a pressing piece side reaction force forming arm insertion hole 1 is adjacent to the pressing piece inserting hole 10. 6 are opened from the bottom side, and the reaction force forming arms 11 and 12 are inserted into the holes 15 and 16, respectively.

Although not shown, one end of the cover 5 is supported by the connector housing 1 by a hinge as in FIG. 3, and the other end is locked by the connector housing 1 by male and female locking tools. The cover 5 may have a structure in which a hinge is omitted and both of them are locked by a locking tool.

In such an FPC connector, the FPC 8 is inserted into the FPC insertion hole 2 with the cover 5 opened. In this state, as shown in FIG. 1, the contact 4 does not project into the FPC insertion hole 2, so that the FPC 8 can be inserted into the FPC insertion hole 2 with no insertion / extraction force.

Next, the cover 5 is closed and the pressure piece 7 is inserted into the pressure piece insertion hole 10. The back surface of the pressing piece 7 is inserted along the pressing piece side reaction force forming arm 12, and the tapered surface 7a is first inserted while being in contact with the tapered surface 4a of the contact 4. At this time, since the back surface of the pressing piece 7 is regulated and inserted by the reaction force forming arm 12, the contact 4 is pushed to the left side in FIG. 1 and escapes. When the protrusion 7b of the pressing piece 7 passes over the protrusion 4b of the contact 4, a click feeling is obtained.

When the pressure piece 7 is sufficiently inserted, the state shown in FIG. 2 is obtained, and the contact 4 is pushed by the pressure piece 7 and protrudes toward the FPC insertion hole 2 side. At this time, the back surface of the FPC 8 is regulated by the reaction force forming arm 11, and the FPC 8 is sandwiched between the arm 11 and the contact 4 so that the contact 4 is pressed against the terminal pattern of the FPC 8. .. Further, in this state, the cover 5 is locked to the connector housing 1 by the lock tool.

If the insertion of the pressing piece 7 is stopped before the click feeling is obtained, the pressing piece 7 is pushed back by the elasticity of the contact 4 along the tapered surfaces 4a, 7a.

[0027]

[Effect of the device]

 As described above, the FPC connector according to the present invention has a structure in which each contact does not project to the FPC insertion hole side when the FPC is inserted or removed, so that the FPC can be inserted / removed without inserting / removing force. it can.

Further, according to the present invention, when the pressing piece is not inserted, that is, when the cover is locked and forgotten, each contact is not projected into the FPC insertion hole. It is not possible to obtain the lock, and it is easy to confirm that the cover has been locked.

Further, according to the present invention, even if each contact does not project into the FPC insertion hole when the FPC is inserted or removed, the contact piece is inserted into the FPC insertion hole side by inserting the pressure piece on the back side of each contact when the FPC is inserted. It is possible to obtain sufficient electrical continuity with the FPC by pushing it out.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a state before inserting a pressure piece of an embodiment of an FPC connector according to the present invention.

2 is a vertical cross-sectional view showing a state after the pressure piece is inserted into the FPC connector shown in FIG.

FIG. 3 is a perspective view of a conventional FPC connector.

FIG. 4 is a cross-sectional view of the same FPC inserted state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector housing 2 FPC insertion hole 3 Contact accommodation chamber 4 Contact 4a, 7a Tapered surface 4b, 7b Projection part 5 Cover 6 Hinge part 7 Pressing piece 8 FPC 9a, 9b Locking tool 10 Pressing piece insertion hole 11, 12 Reaction force Forming arm 13 Base portion 14 Terminal portion 15 and 16 insertion hole

Claims (1)

[Scope of utility model registration request] 1. A connector housing is provided with a flexible printed wiring board insertion hole and a plurality of contact accommodation chambers provided at predetermined intervals along the flexible printed wiring board insertion hole, and each of the contact accommodation chambers is provided. A flexible wiring board in which contacts are respectively accommodated, and the connector housing is provided with a pressing piece which is inserted into the connector housing and pressurizes the flexible printed wiring board and the contacts. In the connector for use, each of the contacts is housed in each of the contact housing chambers so as not to project to the flexible printed wiring board insertion hole side in the standby state, and these contacts are provided on the back surface side of each of the contacts in the connector housing. Flexible A connector for a flexible printed wiring board, characterized in that a pressure piece insertion hole for inserting a pressure piece to be pushed out is provided in the printed wiring board insertion hole.