JPH0573862U - Flexible flat cable connector - Google Patents

Abstract

(57) [Abstract] [Purpose] The conductor of the flexible flat cable and the electric wire can be easily connected, the conductor of the FFC is not easily deformed at the time of connection, and the conductor 2 and the sandwicher 3 and the sandwicher 3 are sandwiched. Provided is a connector for a flexible flat cable whose contact with the portion 12 is reliable. A contact 3 for sandwiching a conductor 2 of a flexible flat cable 1 is provided with a male body 5 built in a male housing 4 and a terminal 7 for crimping and fixing an electric wire 6 and contacting the contact 3. The female body 9 is built in the female body housing 8. The contactor 3 is formed by bending a metal plate to form two sandwiching portions 10 sandwiching the conductor 2 and facing each other.
The terminal 7 is elastically deformable, and the terminal 7 compresses and elastically deforms the contact 3 of the male body 5 when the male body 5 is fitted into the female body 9 and the electric wire fixing portion 11 for fixing the electric wire between the terminal 7 and the female body 9. A sandwiching portion 12 for crimping the sandwiching portion 10 of the child 3 to the conductor 2 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector used for connecting a flexible flat cable (hereinafter referred to as FFC) and an electric wire.

[0002]

[Prior Art]

 The FFC is made by cutting a thin plate of a conductive material such as copper into an appropriate width and arranging a plurality of strip-shaped conductors in parallel, and applying an appropriate adhesive in advance from the front and back surfaces of the two polyesters. It is sandwiched and covered with an insulating film and the conductors are insulated from each other.

In order to electrically connect the conductor of the FFC as described above to the electric wire, conventionally, the insulating film at the end of the FFC is removed to expose the conductor, and the exposed conductor and the plate-shaped tab are separated. The one end side is connected by means such as ultrasonic welding, and the tab-shaped contact portion on the other end side of the tab and the female terminal are connected to each other.

[0004]

[Problems to be solved by the device]

 However, since the FFC conductor is a thin strip, its mechanical strength is weak, and in particular, when it is welded to a tab, it may be deformed by a thin thickness and may be broken by a slight force. In order to prevent this, it is necessary to sufficiently protect the conductor so that no force is applied to the vicinity of the welded part of the conductor. Therefore, conventionally, a protection member was used. In addition, workability was poor because it was necessary to carefully handle semi-finished products during manufacturing. Therefore, there is a problem that the manufacturing cost increases.

An object of the present invention is to provide a connector in which the conductor of the FFC and the electric wire can be easily connected and the conductor of the FFC is not easily deformed at the time of connection.

[0006]

As shown in FIGS. 1 to 3, in a connector for a flexible flat cable of the present invention, a contactor 3 for sandwiching a conductor 2 of a flexible flat cable 1 has a male housing. The male body 5 built in the plug 4 and the terminal 7 for crimping and fixing the electric wire 6 and contacting the contact 3 are the female body 9 built in the female housing 8. The contact 3 is made of metal. Two sandwiching portions 10 for sandwiching the conductor 2 by bending the plate are formed so as to face each other and are elastically deformable in the opposing direction of the sandwiching portions 10, and the terminal 7 and the wire fixing portion 11 for fixing the wire. And a clamping portion 12 for compressing and elastically deforming the contactor 3 of the male body 5 when the male body 5 is fitted into the female body 9 and crimping the clamping portion 10 of the contactor 3 to the conductor 2. Is.

[0007]

[Action]

 In the flexible flat cable connector of the present invention, when the male body 5 is fitted into the female body 9 as shown in FIG. 2, the contacts 3 in the male body 5 are compressed from the outside by the terminals 7 in the female body 9. The conductor 2 is elastically deformed and is crimped to the conductor 2. Therefore, when the conductor 2 is inserted into the contactor 3, the clamping force of the contactor 3 can be loosened so that an unreasonable force is not applied to the conductor 2 during insertion. Even if the conductor 2 is not welded to the contactor 3, the conductor 2 can be securely sandwiched by the elastic deformation of the contactor 3 simply by inserting the male body 5 into the female body 9.

[0008]

【Example】

 The flexible flat cable connector of the present invention will be described in detail with reference to the embodiments shown in FIGS. The flexible flat cable connector has a male body 5 in which a contact 3 is housed and fixed in a male housing 4 made of resin, and a terminal 7 is housed and fixed in a female housing 8 made of resin. The female body 9 and the female body 9 can be fitted and removed from each other as shown in FIGS.

The male housing 4 is formed in a box shape, and an opening 41 (FIG. 1) into which the FFC 1 can be inserted is formed at one end thereof, and fitting spaces 42 (FIG. 3) are formed at even intervals in the lateral direction. And a locking protrusion 43 (FIG. 3) is formed on the upper surface.

As shown in FIG. 1, the contactor 3 is formed by bending a longitudinal center portion 31 of a strip-shaped metal plate into a U-shape, bending its tip inward in a U-shape, and further bending its tip outward in a U-shape. Two contact portions 10 are formed so as to turn back in a letter shape and face each other, and at the same time, the two contact portions 10 can be elastically deformed in the opposing direction. As a result, the insertion force is small when the conductor 2 of the FFC 1 is inserted between the opposing contact portions 10, and the conductor 2 is prevented from being deformed by the insertion.

A plurality of the contacts 3 are accommodated and fixed side by side in a row in the male housing 4, and each contact 3 is located inside the fitting space 41 (FIG. 3) of the male housing 4. It is housed and fixed as described above.

The female body housing 8 is formed in a box shape as shown in FIG. 3, and a locking hole 81 into which the locking protrusion 43 of the male housing 4 is fitted and locked is formed on the upper surface thereof, and the locking hole 81 is formed in the axial direction. A male body insertion port 82 into which the male body 5 can be inserted is formed at one end as shown in FIG. 1, and a plurality of electric wire insertion ports 83 into which electric wires 6 can be inserted as shown in FIG. An insertion groove 84 (FIG. 3) is formed which inserts the terminal 7 in the longitudinal center of the width direction of each wire insertion port 83, and further prevents the terminal 7 from slipping out on the inner surface of the side wall of each insertion groove 84. A retaining protrusion 85 (FIGS. 1 and 2) is formed. The retaining protrusion 85 is plate-shaped, and its root portion 86 is fixed to the inner surface of the side wall of the insertion groove 84, and the tip portion 87 is protruded into the insertion groove 84 to form a leaf spring shape. When the tip portion 87 is pushed inward and the terminal 7 is smoothly pushed in, and when the terminal 7 is pulled in the direction opposite to the inserting direction, the back surface 72 of the terminal 7 hits against the tip portion 87 as shown in FIG. I am doing it.

The terminal 7 housed and fixed in the female body housing 8 has a sandwiching portion 12 formed in a bifurcated shape as shown in FIG. 1, and the contactor 3 is provided between two opposing sandwiching pieces 71. The insertion space 72 that can be inserted is provided, and the width W of the insertion space 72 is made narrower than the height of the contact 3 so that the contact 3 can be compressed when the contact 3 is inserted into the insertion space 72. There is. Further, as shown in FIGS. 1 and 2, a conductor fixing portion 73 for pressing and fixing the conductor 61 of the electric wire 6 on the side opposite to the sandwiching portion 12, and a covering fixing portion 74 for crimping and fixing the covering portion 62 of the electric wire 6. Are formed.

In this terminal 7, the conductor 61 of the electric wire 6 is fixed to the conductor fixing portion 73 by crimping the covering portion 62 of the electric wire 6 to the covering fixing portion 74, and then the sandwiching portion 12 is fixed to the female body housing 8 of FIG. While being inserted into the insertion groove 84 (FIG. 3), the electric wire 6 is inserted into the electric wire insertion port 83 to be housed and fixed in the female housing 8.

To connect the FFC 1 and the electric wire 6 with the connector of the present invention, the following is performed. First, the insulating coating film at the end of the FFC 1 is removed to expose the conductor 2 to the outside, and the exposed conductor 2 is inserted between the contact portions 10 of the contacts 3 in the male housing 4 as shown in FIG. .. Separately from this, the terminal 7 to which the electric wire 6 is crimped and fixed is inserted and fixed in the female side housing 8 as shown in FIG.

Then, when the male body 5 is fitted into the female body 9 as shown in FIG. 2, the two holding pieces 71 of the holding portion 12 of the terminal 7 are inserted into the male body housing 4 from the fitting space 42. The contactor 10 that protrudes into the housing 4 and compresses the sandwiching member 3 in the housing 4, elastically deforms the sandwiching member 3 and the facing contact portion 10 is pressed against the conductor 2 of the FFC 1, and between the contacting portions 10. The inserted conductor 2 is crimped and fixed. This ensures the contact between the conductor 2 and the sandwiching element 3 and the contact between the sandwiching element 3 and the sandwiching portion 12. At this time, since the locking protrusion 43 of FIG. 3 is fitted into the locking hole 81 and locked, the male body 5 and the female body 9 are not accidentally separated.

[0017]

[Effect of the device]

 The connector of the present invention has the following effects. Since the conductor 2 of the FFC 1 can be inserted between the contact portions 10 facing each other with a small insertion force, the conductor 2 is not deformed during insertion. The contact 3 is elastically deformed by the fitting of the male body 5 and the female body 9 and the contact 3 and the conductor 2 of the FFC 1 come into contact with each other with a large contact pressure. The contact with the sandwiching portion 12 is ensured. Since it is not necessary to weld the conductor 2 of the FFC and the tab as in the conventional example, it cannot be said that the mechanical strength of the conductor 2 of the FF C1 is lowered.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a connector of the present invention before fitting.

FIG. 2 is a vertical sectional side view of the connector of the present invention after fitting.

FIG. 3 is a perspective view of the connector of the present invention before mating.

[Explanation of symbols]

 1 Flexible Flat Cable 2 Conductor 3 Contact 4 Male Body 5 Male Body 6 Electric Wire 7 Terminal 8 Female Body Housing 9 Female Body 10 Clamping Part 11 Wire Clamping Part 12 Clamping Part

Claims (1)

[Scope of utility model registration request] 1. A contact 7 for sandwiching a conductor 2 of a flexible flat cable 1, a male body 5 contained in a male housing 4, and a terminal 7 for fixing an electric wire 6 and contacting the contact 3. Comprises a female body 9 housed in a female body housing 8, and the contactor 3 is formed by bending two metal plates to sandwich two conductors 10 sandwiching the conductor 2 and facing each other. When the male body 5 is fitted into the female body 9, the terminal 7 is elastically deformable in the opposite direction, and when the male body 5 is fitted into the female body 9, the terminal 7 is compressed and elastically deformed to make contact. A connector for a flexible flat cable, comprising: a sandwiching portion 12 for crimping the sandwiching portion 10 of the child 3 to the conductor 2.