JP2006216490A - Connector for flexible wiring boards - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact connector for flexible wiring boards with which ease, certainty or reliability of connection of flexible wiring boards such as FPC and FFC can be improved. <P>SOLUTION: In the connector housing 5 of the connector for the flexible wiring boards, a diaphragm 6 bent in a crank shape is installed to dispose a flexible wiring board 1 which is inserted from a insertion mouth 3, and a flexible wiring board 2 which is inserted from another insertion mouth 4 on both sides of a main diaphragm body 6A, respectively. A plurality of notching holes 7 for setting electrically connecting tips 8 are formed on the main diaphragm body 6A. Upper ends of the electrically connecting tips 8 contact closely to upper portion of the connector housing 5, their lower ends contact closely to lower portion of the connector housing 5, and thus the upper ends and the lower ends of the electrically connecting tips 8 are made to contact with circuit conductors 1A and 2A on respective exposed ends of the flexible wiring boards 1 and 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector for a flexible wiring board for connecting circuit conductors of a flexible wiring board such as a flexible printed wiring board (FPC) or a flexible flat cable (FFC) often used for wiring of automobiles and OA equipment.

  This kind of flexible wiring board, for example, FPC, forms a circuit pattern with a circuit conductor made of rolled copper foil, electrolytic copper foil, etc. on an insulating film (base film) such as polyimide or polyethylene terephthalate, and the same as described above. Insulating film (coverlay) is laminated. Therefore, such FPC has flexibility, and the circuit conductor is patterned on the film, so that wiring is easy to perform, and it is often used especially for connection between complicated circuits and devices. The connector for connecting the FPC includes a connector housing having a pair of insertion ports into which the end portions of the FPC are inserted, and the end portions of the FPCs that are held in the connector housings and inserted from the insertion ports, respectively. Have been developed comprising an electrical connector formed of a single piece each having a connection projection that contacts the circuit conductor of the circuit board, and a pressing body that presses the end of each FPC toward the connection projection. (See Patent Document 1).

According to the connector described in Patent Document 1, as shown in FIG. 5, the end portions of the FPCs 103 and 104 are inserted from the insertion ports 101 and 102 of the connector housing 100, and the respective circuit conductors 103A and 104A are connected. The contact protrusions 106 of the electrical connector 105 are contacted, and the circuit conductors 103A and 104A of the FPCs 103 and 104 are connected to each other through the electrical connector 105. Further, since the FPCs 103 and 104 are pressed toward the connection protrusion 106 by the pressing body 107, the circuit conductors 103A and 104A and the connection protrusions 106 are pressed against each other, and the reliability of the contact portion is improved. The connector 105 and the connector housing 100 that connect the circuit conductors 103A and 104A of the FPCs 103 and 104 to each other can be unified, so that the production process can be unified, the productivity can be improved, and the production cost can be reduced. That's it.
Japanese Utility Model Publication No. 5-31167 (2nd page, FIG. 1)

  The conventional connector has a structure in which FPCs are abutted at the same level, and the length in the longitudinal direction is large as a whole, making it difficult to achieve compactness.

Accordingly, an object of the present invention is to provide a connector for a flexible wiring board that improves the ease, certainty or reliability of connection between flexible wiring boards such as FPC and FFC, and is compact.

  In order to achieve the above-mentioned object, the present invention provides a connector housing with a pair of insertion openings for inserting the ends of two flexible wiring boards, and two connectors via electrical connectors provided in the connector housing. In the flexible wiring board connector for connecting the circuit conductors of the flexible wiring board to each other, a partition board bent in a crank shape is installed in the connector housing and the flexible wiring board inserted from one insertion port and the other insertion A flexible wiring board inserted from the mouth can be arranged on both sides of the partition body, and a plurality of notch holes for setting an electrical connector are provided in the partition body of the partition plate, and the electrical connector is connected to the upper end thereof. Set the notch hole so that the lower end is in pressure contact with the upper inner surface of the connector housing and the lower end is pressed against the lower inner surface. It is obtained so as to contact the circuit conductor of the exposed end of the flexible wiring board.

  According to the present invention, the connector housing is provided with a pair of insertion openings for inserting the end portions of the two flexible wiring boards, and the circuit of the two flexible wiring boards is provided via the electrical connector provided in the connector housing. In a flexible wiring board connector for connecting conductors to each other, a flexible wiring board inserted from one insertion opening and a flexible insertion inserted from the other insertion opening by installing a partition plate bent in a crank shape in the connector housing A wiring board can be arranged on both sides of the partition body, and a plurality of cutout holes for setting electrical connectors are provided in the partition body of the partition board, and the upper end of the electrical connector is the upper inner surface of the connector housing. In addition, the lower end is set in the notch hole so that the lower end is pressed against the inner surface of the lower portion, and the upper and lower ends of the electric connector and the respective flexible wiring boards Since the exposed circuit conductors at the end are brought into contact with each other, the FPCs can be easily and reliably brought into contact with each other simply by inserting the FPCs into the insertion port, and the two insertion ports are not at the same level but separated vertically. Since the end portions of the FPC and the like overlap with each other through the partition plate, the connector can be miniaturized.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an exploded perspective view of a flexible wiring board connector according to an embodiment of the present invention, and a pair of insertion openings 3 and 4 for inserting end portions of two flexible wiring boards 1 and 2 such as FPC or FFC. A connector housing 5 provided with an upper member 5A and a bottom member 5B. The upper member 5A is a bowl-shaped member whose left side surface and lower surface are opened in the drawing, and the bottom member 5B is a bowl-shaped member whose right side surface and upper surface are opened, and is assembled so as to overlap them. The upper member 5A and the bottom member 5B are integrated with one locking claw locked to the other locking portion. A partition plate 6 is provided between the upper member 5A and the bottom member 5B. The partition plate 6 has a bent portion 6B extending upward on one end side of the partition main body 6A and a bent portion 6C extending downward on the other end side, and the shape of the side surface is bent in a crank shape as a whole. There is no. And the some notch hole 7 is provided in the center part of 6 A of partition main bodies. The flexible wiring board 1 is inserted and positioned above the partition body 6A, and the flexible wiring board 2 is inserted and positioned below the partition body 6A. Electric connectors 8 are set at the positions of the cutout holes 7, respectively. The flexible wiring boards 1 and 2 are provided with circuit conductors 1A and 2A, respectively, and the exposed end portions of these circuit conductors 1A and 2A are in contact with the electric connector 8, and the electric connector 8 The flexible wiring board 1 and the flexible wiring board 2 are connected. The connector housing 5 and the partition plate 6 are made of an electrically insulating material such as a plastic material.

  FIG. 2 shows a cross-sectional view of the connector housing 5 in an assembled state before the flexible wiring boards 1 and 2 are inserted into the insertion ports 3 and 4, and the side surface of the electrical connector 8 is bent into an S shape. The upper end of the S-shaped electric connector 8 is in pressure contact with the inner surface of the upper member 5A of the connector housing 5, and the lower end of the electric connector 8 is in pressure contact with the inner surface of the bottom member 5B of the connector housing 5. The flexible wiring boards 1 and 2 have a structure in which a circuit conductor 1A is sandwiched between a base film 1B and a cover lay 1C. The insertion ports 3 and 4 are not at the same level but are provided at different positions in the vertical direction. That is, in FIG. 2, the insertion port 3 is positioned higher than the insertion port 4. Therefore, when the flexible wiring board 1 is inserted from the insertion port 3 in the state of FIG. 2 and inserted so as to push down the upper end against the spring property of the upper end of the electrical connector 8, the circuit conductor exposed to the outside The end of 1A contacts the upper end of the electrical connector 8. When the flexible wiring board 2 is inserted from the insertion port 4 so as to be positioned downward in the vertical direction, the lower end of the electrical connector 8 comes into contact with the exposed end portion of the circuit conductor 2A. Since the electrical connector 8 is set inside the connector housing 5 with its upper and lower ends pushed back toward the center, the upper member 5A and the bottom member 5B are respectively provided at the upper and lower ends of the electrical connector 8. The flexible wiring boards 1 and 2 are strongly sandwiched. This enables reliable and reliable contact.

  FIG. 3 shows a modified example of the electrical connector 8, with the first protrusion 8B protruding above the plate-like object 8 as the upper part, and the second protrusion protruding downward from the first protrusion 8B. The part 8C is the lower part. Such an electrical connector 8 is set in the notch hole 7 of the partition plate 6 as shown in FIG. The flexible wiring boards 1 and 2 are in contact with the first protrusion 8B and the second protrusion 8C. In the embodiment shown in FIG. 4, the downsizing in the longitudinal direction is inferior to the embodiment shown in FIG. 2, but is downsized compared to the prior art. In any of the embodiments, since the insertion opening is not at the same level but is divided vertically, the two flexible wiring boards 1 and 2 overlap each other in the vertical direction, so that the connector itself can be miniaturized as a whole.

The disassembled perspective view which shows embodiment of this invention. Sectional drawing of the assembled state. The perspective view which shows the other example of an electrical connector. Sectional drawing of the connector using the electrical connector of FIG. The perspective view which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Flexible wiring board 1A, 2A Circuit conductor 3, 4 Insertion slot 5 Connector housing 6 Partition plate 6A Partition main body 7 Notch hole 8 Electrical connector

Claims (3)

A connector housing is provided with a pair of insertion openings for inserting the ends of the two flexible wiring boards, and the circuit conductors of the two flexible wiring boards are connected to each other via an electrical connector provided in the connector housing. In wiring board connectors,
A partition plate bent in a crank shape is installed in the connector housing, and a flexible wiring board inserted from one insertion port and a flexible wiring board inserted from the other insertion port are respectively provided on both sides of the partition body. To be able to place
Provided with a plurality of notches to set the electrical connector in the partition body of this partition plate,
The electrical connector is set in the notch hole so that the upper end is in pressure contact with the upper inner surface of the connector housing and the lower end is in pressure contact with the lower inner surface;
A connector for a flexible wiring board, wherein the upper and lower ends of the electrical connector are brought into contact with the circuit conductors at the exposed ends of the respective flexible wiring boards.   The flexible wiring board connector according to claim 1, wherein a side shape of the electrical connector is bent into an S shape.   The electrical connector has a configuration in which a first protrusion protruding above the plate-like object is an upper part, and a second protrusion protruding downward from the first protrusion is a lower part. The connector for flexible wiring boards according to claim 1.

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