JPH0617166U - Electrical connector - Google Patents

Abstract

(57) [Abstract] [Purpose] The FPC is made hard to come off from the connector body by pressing one of the contact metal fitting and the FPC against the other, and it is securely held in the connector body. To provide an electrical connector adapted to do so. [Structure] A connector body 2 to which a plurality of contact fittings 5 that are brought into contact with an FPC 4 inserted inside are fixed
And the FPC 4 and the contact fitting 5 are attached to the connector body 2 and pressed against the other, thereby
The cover member 3 locks the connector 4 in the connector body 5. The contact fitting 5 is fixed to the base 5a along the bottom wall of the connector body 2 and the base 5a.
Between the rising portion 5b rising from a and the rising portion 5b protruding in the direction along the base portion 5a, F
And a pressing piece portion 5c capable of sandwiching the PC 4, and an F-shaped end surface of the base portion 5a on the pressing piece portion 5c side.
The bite 5g that bites into the PC 4 is projected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric connector adapted to lock a flexible printed circuit board (hereinafter abbreviated as FPC) inserted in a connector body by a cover member mounted on the connector body mounted on the board.

[0002]

[Prior art]

 FIG. 6 shows a conventional example of this type of FPC electrical connector. The electrical connector 1 of this example includes a connector body 2 mounted on a board and a cover member 3 attached to the connector body 2, and the connector body 2 has an opening 2a for inserting the FPC 4 on the front side thereof. A plurality of contact fittings 5 that are box-shaped and are brought into contact with the FPC 4 are fixed inside.

The contact fitting 5 includes a base portion 5a fixed to the connector body 2, a rising portion 5b rising from the base portion 5a, and a pressing piece portion 5c protruding from the rising portion 5b along the base portion 5a. The front end 5d of the pressing piece 5c is elastically brought into contact with the FPC 4. Further, a foot portion 5e is projectingly provided on the base 5a side of the contact fitting 5, and the foot portion 5e is connected to a wiring pattern of a substrate (not shown). In the connector body 2, a contact fitting 5 having a foot portion 5e formed on the front side and a contact fitting 5 formed on the rear side are alternately arranged side by side and fixed.

On the other hand, the cover member 3 has an insertion opening 3a having a tapered portion into which the FPC 4 is guided and inserted, and the FPC 4 inserted into the connector body 2 through the insertion opening 3a. A pressing portion 3c is provided for pressing the contact fitting 5 against the contact fitting 5.

In the electrical connector 1 having such a configuration, the tip side of the FPC 4 is inserted into the connector body 2 through the insertion port 3a of the cover member 3, and the contact portion formed on the tip side is inserted. The contact member 5 is positioned below the pressing piece 5c, and in this state, the cover member 3 is slid horizontally and pushed. As a result, as shown in FIG. 7, the tip of the FPC 4 is clamped and held by the pressing piece 5c and the pressing portion 3c, the FPC 4 and the contact fitting 5 are electrically connected, and the FPC 4 is locked. R.

Further, when the FPC 4 is unlocked, the cover member 3 is slid horizontally from the state shown in FIG. 7 and pulled out to the position shown in FIG. As a result, the holding condition of the FPC 4 is released, and the FPC 4 is pulled out from the insertion port 3a.

[0007]

[Problems to be solved by the device]

 In the conventional FPC electrical connector 1 as described above, the FPC 4 is substantially contact pressure between the FPC 4 and the pressing piece 5c of the contact fitting 5, in other words, only the elasticity of the pressing piece 5c of the contact fitting 5. It is locked and held by the connector body 2. Therefore, even if the FPC 4 is in the locked state shown in FIG. 7, when it is pulled outward for some reason, the FPC 4 may easily come out of the connector body 2.

In view of the above point, the present invention locks the FPC by pressing either one of the contact metal fitting and the FPC against the other, and the FPC is made hard to come off from the connector main body, and the FPC is attached to the connector main body. An object of the present invention is to provide an electrical connector that can be securely held.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, an electrical connector according to the present invention comprises a connector main body to which a plurality of contact metal fittings to be brought into contact with an FPC inserted therein are fixed, and the contact metal fitting attached to the connector main body. And a cover member that locks the FPC in the connector body by pressing one of the FPCs to the other, and the contact metal fitting is fixed along a bottom wall of the connector body. , A pressing portion that protrudes from the base portion in a direction along the base portion so that the FPC can be sandwiched between the rising portion and the base portion. It is characterized in that a biting tooth that bites into the FPC is projectingly provided on the end surface of the pressing piece portion side.

[0010]

[Action]

 In the electrical connector according to the present invention configured as described above, when the FPC board is sandwiched between the base of the contact fitting and the pressing piece, it is formed on the end surface of the base on the side of the pressing piece. Since the bite bites into the FPC, once the FPC is locked, it is extremely difficult for the FPC to be pulled out of the connector body even if it is pulled outward, and the FPC is securely held in the connector body.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show an embodiment of an electric connector for an FPC according to the present invention. An electric connector 10 of this example corresponds to each part of the conventional electric connector 1 shown in FIGS. 6 and 7 described above. The same reference numerals are given to the portions to be described, and their detailed description will not be omitted and will be simplified. The electrical connector 10 of this embodiment is composed of a connector body 2 mounted on a substrate and a cover member 3 attached to the connector body 2.

The connector body 2 has a box shape having an opening 2 a for inserting the FPC 4 on the front side thereof, and a plurality of contact fittings 5 that are brought into contact with the FPC 4 are fixed inside. On both sides of the connector body 2 and the cover member 3, there are provided an engaging portion 2b and a hook portion 3f for retaining the both when the cover member 3 is mounted on the connector body 2. (See Figure 3).

As can be seen from FIG. 4 as well, the contact fitting 5 has a base portion 5a fixed along the bottom wall portion of the connector body 2, a rising portion 5b rising from the base portion 5a, and a rising portion 5b. A pressing piece 5c that protrudes from the upper part 5b in the direction along the base 5a so that the FPC 4 can be sandwiched between the upper part 5b and the upper part 5b and also protrudes from the upper part of the rising part 5b along the base 5a. An upper piece portion 5f fixed along the top wall portion of the connector main body 2, and a required number of bite teeth 5g that bite into the FPC 4 are projected on the end surface of the base portion 5a on the side of the pressing piece portion 5c. There is. A foot portion 5e is provided so as to protrude from the base 5a side of the contact fitting 5, and the foot portion 5e is connected to a wiring pattern of a substrate (not shown). In the connector body 2, a contact fitting 5 having a foot portion 5e formed on the front side and a contact fitting 5 formed on the rear side are alternately arranged side by side and fixed (see also FIG. 3).

On the other hand, the cover member 3 has an insertion opening 3a having a tapered portion into which the FPC 4 is guided and inserted, and the contact fitting 5 in a state in which the insertion opening 3a is attached to the connector body 2. In order to be able to press the pressing piece 5c toward the base 5a side, there is provided a pressing portion 3d having an inclined pressing surface 3e inclined with respect to the mounting direction (horizontal direction) thereof.

In addition, as shown in FIG. 5 on both sides of the connector body, when the tip of the FPC 4 is inserted to the proper insertion position in the connector body 2, the tip portion of the FPC 4 is inserted. A pair of clip members 7 adapted to press are fixed respectively. The clip member 7 is vertically symmetrical, and has a base portion 7a provided with triangular teeth at the upper and lower ends which bite into the connector body 2, and a bottom wall portion of the connector body 2 from the upper and lower ends of the base portion 7a. It is composed of a pair of upper and lower V-shaped pressing portions 7b 1 and 7c which project in the direction.

In the electrical connector 10 of this embodiment having such a configuration, the front end side of the FPC 4 is inserted into the connector main body 2 through the insertion port 3a of the cover member 3 and is formed on the front end side thereof. The contact portion is located below the pressing piece 5c of each contact fitting 5, and the cover member 3 is slid horizontally in this state so that the pressing portion 3d moves to the upper piece 5f of the contact fitting 5 and the pressing piece 5c. Push in between. As a result, as shown in FIG. 2, the pressing piece portion 5c of the contact fitting 5 is pressed by the inclined pressing surface 3e formed on the pressing portion 3d of the cover member 3 and bent downward, and the tip portion 5d thereof. Is pressed against FPC4.

As a result, the tip of the FPC 4 is clamped and held by the pressing piece 5c and the base 5a so that the FPC 4 and the contact fitting 5 are electrically connected and the FPC 4 is locked. At this time, the bite 5g protrudingly provided on the base 5a is made to bite into the tip of the FPC 4.

Under the structure as described above, when the FPC 4 is sandwiched between the base 5a of the contact fitting 5 and the pressing piece 5c, the bite formed on the end surface of the base 5a on the pressing piece 5c side. Since the teeth 5g bite into the FPC 4, once the FPC 4 is locked, the FPC 4 is extremely difficult to come off from the connector main body 2 even if it is pulled outward, and is reliably held by the connector main body 2.

Further, the cover member 3 is formed with an inclined pressing surface 3e which is inclined with respect to the mounting direction thereof, and when the cover is mounted, the pressing piece 5c of the contact fitting 5 faces the base 5a side. Since the pressing is performed, a reliable feeling (click feeling) is obtained when the inclined pressing surface 3e presses the contact fitting 5 immediately before the cover member 3 is completely attached. Therefore, it becomes easy to know whether or not the cover member 3 is completely attached to the connector body 2, and the situation in which the cover member 3 and the FPC 4 are left in an incompletely attached state and a locked state is reduced. It will be.

Further, the inclined pressing surface 3e formed on the cover member 3 presses the pressing piece 5c of the contact fitting 5 against the FPC 4 to lock the FPC 4, so that the pressing piece 5c of the contact fitting 5 is pressed. The FPC 4 is more difficult to come off from the connector body 2 than a conventional one that is locked only by elasticity.

Furthermore, when the clip member 7 is fixed in the connector body 2 and the tip of the FPC 4 is inserted to the proper insertion position in the connector body 2, the tip portion of the clip member 7 has a dogleg shape. It is sandwiched between the pressing part 7b and the base part 5a of the contact fitting 5 and pressed by the dog-legged pressing part 7b. ) Is obtained. Therefore, it becomes easy to understand whether or not the tip of the FPC 4 has reached the proper insertion position in the connector body 2.

Further, since the clip member 7 presses the FPC 4, it is possible to suppress the undesired behavior of the FPC 4 when the cover member 3 is attached to the connector body 2 and temporarily hold it in the proper insertion position. In addition to providing a feeling of response at the proper insertion position, the FPC 4 can be easily inserted.

[0023]

[Effect of device]

 As is apparent from the above description, the electrical connector according to the present invention has the bite formed on the end surface of the base part when the FPC board is sandwiched between the base part and the pressing piece part of the contact fitting. Since the teeth bite into the FPC, it is possible to prevent the FPC from coming out of the connector body and to hold it securely in the connector body.

[Brief description of drawings]

FIG. 1 is an exploded sectional view showing an embodiment of an electric connector according to the present invention.

FIG. 2 is an assembled sectional view showing an embodiment of an electric connector according to the present invention.

FIG. 3 is a perspective view showing an embodiment of an electric connector according to the present invention.

FIG. 4 is a side view showing a contact fitting of the embodiment.

FIG. 5 is a diagram which is used for describing a clip member used in Examples.

FIG. 6 is an exploded sectional view showing an example of a conventional electric connector.

FIG. 7 is an assembled sectional view showing an example of a conventional electric connector.

[Explanation of symbols]

 2 connector body 3 cover member 3d pressing portion 3e inclined pressing surface 4 FPC 5 contact fitting 5a base portion 5b rising portion 5c pressing piece portion 5g bite 7 clip member 7b, 7c dog-shaped pressing portion 10 electrical connector

Claims (1)

[Scope of utility model registration request] 1. A connector main body to which a plurality of contact metal fittings that are brought into contact with a flexible printed circuit board inserted therein are fixed, and one of the contact metal fittings and the flexible printed circuit board mounted on the connector main body is the other. A cover member for pressing the flexible printed circuit board to lock the flexible printed circuit board in the connector body, and the contact metal fitting is fixed along a bottom wall portion of the connector body, and a rising portion rising from the base portion. And a pressing piece portion projecting from the rising portion in a direction along the base portion so that the flexible printed circuit board can be sandwiched between the base portion and the pressing piece portion side of the base portion. An electric connector characterized in that bites that bite into the flexible printed circuit board are projectingly provided on the end surface of the electric connector. .