JP2006019025A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED To significantly reduce manufacturing costs.
A connection terminal piece 30 is arranged in a direction orthogonal to connection end portions 11 and 21 of FPCs 10 and 20, and a first press contact terminal portion 31 sandwiching the connection end portion 11 of the FPC 10 is formed at one end. In addition, a second press-contact terminal portion 32 that sandwiches the connection end portion 21 of the FPC 20 is formed at the other end. The connector housing 40 has a first insertion port 43 and a second insertion port 44 into which the connection end portions 11 and 21 of the FPCs 10 and 20 are respectively inserted. The connector housing 40 includes a plurality of connection terminal pieces 30 such that the first press contact terminal portion 31 and the second press contact terminal portion 32 are arranged at predetermined intervals along the connection end portions 11 and 21 of the FPCs 10 and 20, respectively. To support.
[Selection] Figure 1

Description

  The present invention relates to a connector for connecting flexible flat circuits such as FPC (Flexible Printed Circuits) and FFC (Flexible Flat Cable) or between the flexible flat circuits and an electric wire.

Conventionally, as a connector for flexible flat circuits such as FPC and FFC mounted on automobiles, etc., it has male or female connection terminals connected to a plurality of conductors of the flexible flat circuit by welding, etc. There is known a connector that is sealed and fixed in advance with a primary mold resin having electrical insulation so that male or female connection terminals of each other are electrically insulated from each other (Patent Documents 1 and 2).
JP-A-6-310224, paragraphs 0007 to 0008, FIGS. JP-A-7-106016, paragraphs 0007 to 0008, FIG. 1 and FIG.

  However, in the conventional connector described above, when connecting FPCs, FFCs or FPCs, FFCs and electric wires, a metal male or female terminal is connected to each terminal by a method such as crimping, welding, soldering, or piercing. However, since the connectors must be formed at both ends in advance, there is a problem that the manufacturing cost increases.

  Further, when trying to form a joint circuit in the connector, the shape of the terminals in the connector becomes complicated.

  The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a connector capable of greatly reducing the manufacturing cost.

  Another object of the present invention is to provide a connector in which a joint circuit can be easily formed.

  A first connector according to the present invention is a connector for connecting a connection end portion of a first flexible flat circuit and a connection end portion of a second flexible flat circuit, wherein the first and second connectors are connected to each other. A first press-contact terminal portion that is disposed in a direction orthogonal to the connection end portion of the flexible flat circuit and sandwiches the connection end portion of the first flexible flat circuit at one end and the other end A plurality of plate-like connection terminal pieces each having a second press-contact terminal portion sandwiching the connection end portion of the second flexible flat circuit, and the connection ends of the first and second flexible flat circuits The first insertion port and the second insertion port are inserted into the first insertion port and the second insertion port, respectively, and the first insertion port and the second insertion port are inserted into the first insertion port and the second insertion port, respectively. Along each connection end of the first and second flexible flat circuits, respectively. And having a connector housing for supporting the plurality of connection terminal pieces to be arranged at predetermined intervals Te.

  A second connector according to the present invention is a connector for connecting a connection end of a flexible flat circuit and a connection end of a plurality of electric wires, wherein the connection end of the flexible flat circuit and the conductor A first press-contact terminal portion that is arranged in a direction orthogonal to the arrangement direction and sandwiches the connection end portion of the flexible flat circuit at one end and a second end that sandwiches the connection end portion of the electric wire at the other end. A plurality of plate-like connection terminal pieces formed with pressure contact terminal portions, a first insertion port and a second insertion port into which the connection end portions of the flexible flat circuit and the conductive wire are respectively inserted; The 1 press contact terminal portion and the second press contact terminal portion are arranged at predetermined intervals along the connection end portions of the flexible flat circuit and the electric wire respectively inserted into the first insertion port and the second insertion port. The plurality of connection ends to be And having a connector housing for supporting the piece.

  In these connectors, when a joint circuit is formed inside, at least a part of the plurality of connection terminal pieces are connected to each other via a connecting portion.

  According to the present invention, a plurality of connection terminal pieces are arranged and supported at a predetermined interval inside the connector housing, and these connection terminal pieces are simply plate-like shapes in which first and second press contact terminal portions are formed at both ends thereof. The terminal pieces of the two are connected to each other simply by inserting the flexible flat circuits or the flexible flat circuit and the electric wire into the first press contact terminal portion and the second press contact terminal portion, respectively. There is no need for processes such as soldering and piercing, and no equipment is required.

  In addition, since the connection terminal piece is a simple plate-like shape, it can be easily interconnected via a connecting portion in a press punching process, and an arbitrary joint circuit inside the connector can be easily made. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is an exploded perspective view of a connector according to an embodiment of the present invention.

  This connector connects the connection end 11 of the FPC (or FFC) 10 and the connection end 21 of the FPC (or FFC) 20, and includes a plurality of connection terminal pieces 30 and a connector housing 40 that holds the connection terminal pieces 30. It is configured with.

  The FPCs 10 and 20 are formed by forming wiring patterns 13 and 23 such as copper foil on insulating films 12 and 22 such as PET, and covering them with resin cover films 14 and 24, and connecting end portions 11 and 21. Then, the cover films 14 and 24 are removed, and the wiring patterns 13 and 23 are exposed. Further, in order to increase the physical strength at the connection end portions 11 and 21, reinforcing plates 15 and 25 made of an insulator may be attached to the lower surface of the connection end portions 11 and 21.

  The connection terminal piece 30 has a first press contact terminal portion 31 formed at one end thereof, a second press contact terminal portion 32 formed at the other end thereof, and the base end portions of the press contact terminal portions 31 and 32 are main body portions. 33 are plate-like terminal pieces connected via 33 and arranged in a direction orthogonal to the connection end portions 11 and 21 of the FPCs 10 and 20. The first press-contact terminal portion 31 is formed so that the tip is bifurcated and the connection end portion 11 of the FPC 10 is sandwiched in the thickness direction at opposite ends of the branch portions. The second press-connecting terminal portion 32 is formed so that the tip is bifurcated and the connecting end portion 21 of the FPC 20 is sandwiched in the thickness direction at the opposite end portions of the branch portions. These connection terminal pieces 30 are arranged at a predetermined interval in the plate thickness direction.

  The connector housing 40 includes a lower housing 41 and an upper housing 42. In the lower housing 41 and the upper housing 42, grooves 45 and 46 for forming a first insertion port 43 and a second insertion port 44 for inserting the FPCs 10 and 20 respectively are formed on a pair of opposing side surfaces. A terminal piece holding portion 48 having a slit 47 for press-fitting and holding the connection terminal piece 30 at a predetermined interval is formed in the central portion between the insertion ports 43 and 44 (not shown) A similar terminal piece holding portion is also formed in the upper housing 42). The lower housing 41 and the upper housing 42 are coupled and integrated by engaging a protrusion 49 formed on a side surface different from the side surface where the insertion ports 43 and 44 are formed with the engaging piece 50. This structure is an example, and the connector housing 40 may be integrated with the connection terminal piece 30 by insert molding.

  According to such a connector, the FPCs 10, 20 are inserted from the first and second insertion ports 43, 44 of the connector housing 40, and the connection end portions 11, 21 are connected to the first pressure contact terminal portion 31 of the connection terminal piece 30 and the first The connection between the two is possible only by inserting the two pressure contact terminals 32. For this reason, it is not necessary to connect another connection terminal to the connection end portions 11 and 21 of the FPCs 10 and 20 by welding, soldering, piercing or the like, and facilities for that purpose are also unnecessary.

  FIG. 2 is a diagram showing a second embodiment of the present invention, in which connecting terminal pieces are connected to each other to form a joint circuit inside the connector.

  As shown in FIG. 2A, since the connection terminal piece 60 is a plate-like body, a necessary number of connection terminal pieces 60 are punched out by pressing in a state where the connection terminal pieces 60 are connected to each other by the connection portion 61. When the connection terminal pieces 60 are bent into a rectangular waveform so that the connection terminal pieces 60 are arranged at a predetermined interval in the plate thickness direction, as shown in FIGS. Is obtained. If such a connection terminal piece 60 is used, an arbitrary joint circuit can be formed inside the connector.

  FIG. 3 is a view showing a connector according to a third embodiment of the present invention.

  This connector is a connector for connecting the FPC 10 and the plurality of electric wires 70. The same reference numerals are given to the same parts as those in FIG. 1, and the description of the overlapping parts is omitted.

  In this connector, the structure of the connection terminal piece 80 is different from that of the previous embodiment. That is, the connection terminal piece 80 is the same as the previous embodiment in the first pressure contact terminal portion 31 and the main body portion 33 sandwiching the connection end portion 11 of the FPC 10, but the connection end portion (wire exposed portion) of the tip of the electric wire 70. ) The structure of the second press-contact terminal portion 82 to which 71 is connected is different from that of the previous embodiment. The second press-contact terminal portion 82 is a wire holding portion that forms a part of a cone that can receive the connection end portion 71 of the electric wire 70 by slightly raising the opposite end portion of the bifurcated branch portion in the lateral direction. 83 is formed. More specifically, the tip of the branch portion of the punching material as shown in FIG. 4A is bent toward the lower side of the paper as shown in FIG. Next, a bent portion 84 is formed at the base end portion of the branch portion, and the distance between the opposing surfaces of the wire holding portion 83 is adjusted. As a result, as shown in the front view of FIG. 6C and the right side view of FIG. 8D, the distance of the wire holding portion 83 is adjusted, and the connection end 71 of the wire 70 is connected to the wire holding portion 83. By inserting, the connection between the FPC 10 and the electric wire 70 is ensured.

1 is an exploded perspective view of a connector according to a first embodiment of the present invention. It is a connection terminal piece used for the connector which concerns on the 2nd Embodiment of this invention, (a) is a top view immediately after stamping, (b) is a top view after bending, (c) is after bending It is a front view. It is a disassembled perspective view of the connector which concerns on the 3rd Embodiment of this invention. It is a figure which shows the connecting terminal piece used for the connector in order of a manufacturing process, (a)-(c) is a top view, (d) is a right view of (c).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,20 ... FPC, 11, 21, 71 ... Connection end part, 30, 80 ... Connection terminal piece, 31 ... 1st press contact terminal part, 32, 82 ... 2nd press contact terminal part, 40 ... Connector housing. 70: Electric wire.

Claims (3)

A connector for connecting the connection end of the first flexible flat circuit and the connection end of the second flexible flat circuit,
A first press-contact terminal portion that is disposed in a direction orthogonal to the connection end portions of the first and second flexible flat circuits and sandwiches the connection end portion of the first flexible flat circuit at one end is formed. And a plurality of plate-like connection terminal pieces each having a second press-contact terminal portion sandwiching the connection end portion of the second flexible flat circuit at the other end,
The first and second flexible flat circuits have a first insertion port and a second insertion port into which connection end portions are inserted, respectively, and the first press contact terminal portion and the second press contact terminal portion are The plurality of connection terminal pieces arranged at predetermined intervals along the connection end portions of the first and second flexible flat circuits respectively inserted into the first insertion port and the second insertion port. And a connector housing for supporting the connector. A connector for connecting a connection end of a flexible flat circuit and a connection end of a plurality of electric wires,
A first press-connecting terminal portion that is arranged in a direction orthogonal to the connecting end portion of the flexible flat circuit and the arrangement direction of the conducting wires and that sandwiches the connecting end portion of the flexible flat circuit at one end is formed. A plurality of plate-like connection terminal pieces each having a second press-contact terminal portion sandwiching the connection end portion of the electric wire at the other end;
The flexible flat circuit and the conductive wire have a first insertion port and a second insertion port into which connection end portions are inserted, respectively, and the first pressure contact terminal portion and the second pressure contact terminal portion are the first insertion port. A connector housing that supports the plurality of connection terminal pieces so as to be arranged at predetermined intervals along the connection ends of the flexible flat circuit and the electric wires respectively inserted into the opening and the second insertion opening. A connector comprising:   The connector according to claim 1, wherein at least a part of the plurality of connection terminal pieces is connected to each other via a connecting portion.

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