JPS6010300Y2 - Contact for flexible printed wiring board connector with locking mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a contact for a connector with a flexible printed wiring board locking mechanism that locks a flexible printed wiring board in a connected state.

When connecting the terminal section of a printed wiring board to a connector with a locking mechanism, in order to prevent the flexible printed wiring board from coming out from the connector, the side wall of the connector housing is pressed and bent, thereby creating a clamping type connector. It is practiced to apply pressure to the contacts and clamp the printed wiring board between the contacts to prevent the printed wiring board from coming out.

A conventional connector contact 1 used for such applications is made by folding a single metal strip into two, as shown in FIGS. On the opposite side are two forked clamping pieces 3, 4, each of which is bent in a direction in which the clamping pieces approach each other, and a clamping contact portion 5, in which the bent apexes of each are in contact with each other. 6, and the clamping contact portion 5 on one clamping piece 3 side was provided with a cut-and-raised protrusion 7 that protruded toward the opposite clamping piece 4 side at the center in the width direction.

Such a contact 1 is made by inserting a terminal portion of a flexible printed wiring board between the holding pieces 3 and 4, and
4 to the side wall of the connector housing (not shown) to apply pressure in the direction of approaching each other, both clamping contact portions 5
, 6 hold the flexible printed wiring board, and the cut and raised protrusions 7 prevent the flexible printed wiring board from being removed.

However, in such a structure, when a force in the pulling direction is applied to the flexible printed wiring board, the conductive layer of the terminal part is scraped by the cut and raised protrusion 7, and the terminal part and the contact 1 are disconnected. There was a drawback.

An object of the present invention is to provide a contact for a connector with a flexible printed wiring board locking mechanism that can prevent the occurrence of disconnection due to cut and raised protrusions.

The present invention is for a flexible printed wiring board connector with a locking mechanism, in which one side is a terminal leg, the opposite side is a bifurcated clamping piece, and a clamping contact portion is provided at the apex of both clamping pieces bent close to each other. In the contact, one of the clamping pieces is provided with a cut-and-raised protrusion at at least one end in the width direction of the clamping contact portion thereof, protruding from one side of the other clamping piece, and the other clamping piece is provided with a protrusion extending from the width direction of the clamping contact portion. It is characterized in that a punching protrusion is provided at the center in the direction so as to protrude from one side of the clamp.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 4 to 6.

Components corresponding to those in FIGS. 1 to 3 are designated by the same reference numerals and their explanations will be omitted.

The contact 1 of this embodiment has protrusions 8A and 8B cut and raised at both widthwise ends of the clamping contact portion 5 of one clamping piece 3 and protruding inward, that is, toward the opposing clamping piece 4 side, It has a structure in which a protrusion 9 is provided at the center of the clamping contact portion 6 of the other clamping piece 4 in the width direction.

Such a contact 1 is made by inserting a terminal part of a flexible printed wiring board between both clamping pieces 3 and 4.
When pressure is applied from the side wall of the connector housing (not shown) in a direction in which the connector housing 4 approaches each other, the flexible printed wiring board is clamped between the clamping contact parts 5 and 6, and at this time, both sides of the width direction on the side of the clamping contact part 5 Cut and raised protrusions 8A, 8B
The flexible printed wiring board is bent into a U-shape, and the protrusion 9 at the center in the width direction on the side of the other clamping contact portion 6
The contact portion 5 fits into the recess of this U-shaped flexible portion of the flexible printed wiring board and presses the flexible printed wiring board, sandwiching the conductive layer of the flexible printed wiring board.
The electrical connection is established and the flexible printed wiring board is locked.

In this embodiment, the cut-and-raised protrusions 8A and 8B are projected from both ends of the clamping contact portion 5 in the width direction. If the terminal portion of the flexible printed wiring board inserted between 3 and 4 can be deformed into a wave shape, it is of course possible to simply cut and raise the holding contact portion 5 at least once in the width direction and provide a protrusion thereon. It is.

As explained above, the contact for a connector with a flexible printed wiring board locking mechanism according to the present invention has a protrusion cut and raised inwardly at at least one end in the width direction of the clamping contact portion of one clamping piece, and Since a punching protrusion is provided inwardly protruding from the widthwise center of the clamping contact portion of the piece, the flexible printed wiring board is cut and raised, and the protrusion and the punching protrusion are bent in a wavy manner to securely lock the board. Can be done.

In addition, in the present invention, since the cut and raised protrusions contact the side edges in the width direction of the conductive layer of the flexible printed wiring board, even if the conductive layer is scraped due to a pulling force applied to the flexible printed wiring board, the central part in the width direction is not scraped, and therefore it is possible to prevent poor contact and peeling of the conductive layer.

[Brief explanation of the drawing]

1 to 3 are a front view, a side view, and a rear view of a conventional contact, and FIGS. 4 to 6 are a front view, a side view, and a rear view of an embodiment of a contact according to the present invention. 1...Contact, 2...Terminal leg, 3
, 4... Clipping contact piece, 5, 6... Clipping contact portion, 8A, 8B... Cut-and-raised projection, 9...
...Ejection protrusion.

Claims (1)

[Scope of utility model registration request] In a contact for a connector with a flexible printed wiring board locking mechanism, in which one side is a terminal leg, the opposite side is a bifurcated clamping piece, and a clamping contact portion is provided correspondingly to both clamping pieces, one of the clamping pieces is is provided with a cut-and-raised protrusion protruding inwardly from at least one widthwise end of the clamping contact part, and the other clamping piece has a raised protrusion facing inward at the widthwise center of the clamping contact part. A contact for a flexible printed wiring board connector with a locking mechanism, characterized in that the contact is provided protrudingly from the connector.