JP2502232Y2 - connector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for internal wiring of electronic equipment, and more specifically, to a flexible printed circuit (hereinafter referred to as FPC) or a flexible flat cable (flexible).
Flat cable (hereinafter referred to as FFC), etc., is a connector used to connect to a printed circuit board,
The present invention relates to a Zero Insertion Force type connector.

[0002]

2. Description of the Related Art As a conventional connector for connecting an FPC cable, an FFC, etc., there are, for example, connectors of the type shown in FIGS. That is, in the connector shown in FIG. 4, the slide insulator 8 is detachably attached to the front surface of the base insulator 7 which internally holds the contacts at fixed intervals. In order to connect, for example, an FPC cable to a connector of the type shown in FIG. 5, first, as shown in FIG. 5A, the slide insulator 8 is pulled out to the FPC insertion side, and then the FIG.
As shown in (b), FPC is attached to the slide insulator 8.
Insert the cable 4. Thereafter, as shown in FIG. 5C, the slide insulator 8 holding the FPC cable 4 is pushed into the base insulator 7 to complete the connection.

[0003]

In the case of the above-mentioned conventional connector, when connecting the FPC, the slide insulator 8 is pulled out, the FPC cable 4 is inserted into the slide insulator 8, and the base insulator 7 of the slide insulator 8 is connected. It requires a series of operations such as pushing in. For this reason, there is a problem that the number of work steps until the connection of the FPC cable 4 to the connector is completed is large and the connection work is complicated. In addition, in the present situation where the connector itself is miniaturized, the slide insulator is also small, so that there is a problem that it is difficult to perform the connecting work easily.

The present invention has been made to solve the above problems, and its technical problem is to solve the problems of FPC cables and FFs.
It is an object of the present invention to provide a connector having a structure that allows quick and easy connection to C and the like, and can easily perform connection work even when the size is small.

[0005]

According to the present invention, a contact having a contact portion that comes into contact with a flat body to be connected, a base insulator that holds this contact, and a base that is pivotally supported by the base insulator, A connector including a lock insulator that presses a flat-plate connected body, wherein the base insulator has a plurality of insertion groove portions formed in a row on one side to hold a plurality of contacts, and among the contacts, A locking protrusion is formed on the end of the plurality of insertion grooves, and the lock insulator has a push-in hole for pushing the tip of the flat plate-like connected body and a pressing portion against the contact part of the flat plate-like connected body. A connector having a locking protrusion and an engaging protrusion that engages at the time of connection is obtained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A connector of the present invention will be described in detail below with reference to the drawings by referring to embodiments. FIG. 1 is a perspective view showing the outer appearance of a connector according to an embodiment of the present invention, and FIG. 2 is a partially broken perspective view showing the basic structure of the connector.

This connector has a contact 2 having a contact portion 23 that comes into contact with a flat plate-like connected body such as an FPC cable 4, a base insulator 1 that holds the contact 2, and a pivotally supported by the base insulator 1. The lock insulator 3 is configured to press the FPC cable 4 against the contact 2.

Of these, the base insulator 1 includes
A plurality of insertion groove portions H opened in a row at predetermined intervals are formed on one side, and a plurality of contacts 2 can be inserted and held in these insertion groove portions H. A pair of bearings 11 are formed on both sides of the upper end of the base insulator 1.

The contact 2 is a base insulator 1
Since it is housed and held in the plurality of insertion groove portions H provided in the contact 2, it basically has a uniform shape.
Among them, the one placed on the end side of the plurality of insertion groove portions H,
A locking protrusion 25 is formed on a portion other than the contact portion 23. That is, in the structure shown in FIG. 2, the locking projection 25 is provided between the contact portion 23 of the contact 2 showing the front end 22 and the rear end 21 and the rear end 21. The size of the contact 2 is such that both end portions 21 and 22 project from the front and rear end surfaces of the base insulator 1, respectively. The contact portion 23 has a curved shape protruding upward from the upper end of the insertion groove portion H. The contact portion 23 comes into contact with the FPC cable 4 (to the contact portion) as described later.

The lock insulator 3 is provided on both sides of the rear end thereof with a rotary shaft 31 projecting from the bearing portion 11 of the base insulator 1 so as to be pivotally rotatable. In the lock insulator 3, the protruding rotation shaft 31 is mounted on the bearing portion 11 of the base insulator 1, so that the plurality of insertion groove portions H are inserted into the base insulator 1.
It can be rotated in the vertical direction to open the. or,
The front end of the FPC cable 4 is located on the back surface side of the lock insulator 3 (the surface side facing the contact 2 in the connected state of the FPC cable 4), which is slightly separated from the position of the contact portion 23 of the contact 2. A press-in hole portion S for pressing in is formed. For this reason, the peripheral portion forming the push-in hole S has a traveled shape with a gentle slope. This peripheral part is FPC cable 4
It includes a jaw portion 33 that holds the tip of the. Further, the FPC cable 4 is provided in the peripheral portion forming the push-in hole S and on the side where the locking projection 25 of the contact 2 is located (that is, the rearmost position of the back surface of the lock insulator 3). An engagement protrusion 35 is formed which engages with the locking protrusion 25 of the contact 2 when the pressure connection is made to the contact portion.

With the connector having such a structure, the FPC cable 4 can be connected quickly and easily by performing the connecting work according to the procedure described below.

First, as shown in FIG. 3 (a), the lock insulator 3 is opened and upright, a predetermined number of contacts 2 are housed and held in a predetermined insertion groove portion H, and then F
The connection end of the PC cable 4 is butted against the back surface of the lock insulator 3. Next, from this state, as shown in FIG. 3B, the lock insulator 3 is rotated around the rotation shaft 31 toward the base insulator 1 side.

When the lock insulator 3 is rotated,
The engagement protrusion 35 of the lock insulator 3 abuts on the locking protrusion 25 of the contact 2, and finally, as shown in FIG. Enter to the side. In this state, the tip of the FPC cable 4 is inserted into the push-in hole S formed on the back surface side of the lock insulator 3 and the FPC cable 4 is pressed against the contact portion 23 of the contact 2,
The connection of the PC cable 4 is completed.

In this connection completed state, the engagement protrusion 35 of the lock insulator 3 and the engagement protrusion 25 of the contact 2 are in engagement with each other, and unless a force is applied in the direction of opening the lock insulator 3. , The locked state cannot be released. Since this connecting work is performed on the printed circuit board 5, finally, as shown in FIG. 3C, the FPC cable 4 and the printed circuit board 5 are connected.

Here, as shown in the figure, if the structure from the vicinity of the locking projection 25 of the contact 2 to the rear end 21 is floated from the base insulator 1, when the lock insulator 3 is rotated. The engaging projection 35 can push down the contact 2 and easily move over the locking projection 25 of the contact. In addition, since the contact 2 needs to be elastically restored after the engagement protrusion 35 has passed over the locking protrusion 25, the material of the contact 2 is not easily elastically deformed and has a large elastic return force. It is desirable to select it.

On the other hand, when the connection between the contact 2 and the FPC cable 4 is released, the rear end portion 2 of the contact 2
When 1 is pushed down, the locked state of both protrusions 25 and 35 is released. Therefore, when the lock insulator 3 is continuously rotated in the opposite direction to the above-described step in this state, FP
The C cable 4 can be easily removed.

By the way, in the above-described embodiment, the structure in which one side of the contact 2 is lifted from the base insulator 1 has been described, but instead of this, all the one side portions of the contact 2 are brought into contact with the base insulator 1. You can also However, in this case, the engagement protrusion 35 of the lock insulator 3 is the locking protrusion 25 of the contact 2.
In order to overcome the problem, it is necessary to make at least one of the protrusions 25 and 35 elastically deformable.

That is, when the rear end portion 21 of the contact 2 is lifted from the base insulator 1,
The rear end 21 is a free end, and the other front end 21 is a connecting portion to the printed circuit board 5 as shown in FIG. Further, when the entire one side of the contact 2 is brought into contact with the base insulator 1, the rear end 21 can be used as a connecting portion to the printed circuit board 5. Incidentally, in this case, it is not necessary to project the other front end portion 21 of the contact 2 to the front surface side of the base insulator 1.

[0019]

As described above, according to the present invention, the tip of the flat plate-like connected body is abutted against the back surface of the lock insulator, and the lock insulator can be simply rotated in that state. It is possible to obtain a connector capable of connecting a flat plate-shaped connected body. This enables FPC cables and FF
It becomes possible to shorten the connection work of C and the like. Further, in the case of the connector of the present invention, the basic configuration is different from the connector using the conventional slide insulator, and since the FPC cable is mounted from the upper surface side of the base insulator with the lock insulator open, the contact portion side of the FPC cable The confirmation is facilitated, and the problem of inserting the contact part of each part by mistake is remarkably solved. Therefore, miniaturization can be dealt with without any problem.

[Brief description of drawings]

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

FIG. 2 is a partial cutaway perspective view showing a basic structure of the connector shown in FIG.

FIG. 3 is a side cross-sectional view shown for explaining a connecting step by the connector shown in FIG. 1, in which (a) shows a state where an FPC cable is abutted against a lock insulator of the connector, ) Shows the rotation state of the lock insulator of the connector, and (c) shows the connection completed state of the FPC cable by the connector.

FIG. 4 is a perspective view showing a conventional connector.

FIG. 5 is a perspective view shown for explaining a conventional connector connecting step, in which (a) shows a state where a slide insulator of the connector is pulled out, and (b) shows a slide insulator of the connector. It shows a state immediately before mounting the FPC cable, and (c) shows a step of pushing the slide insulator of the connector into the base insulator after connecting the FPC cable.

[Explanation of symbols]

 1,7 Base insulator 2 Contact 3 Lock insulator 4 FPC cable 5 Printed circuit board 8 Slide insulator 11 Bearing part 21 Rear end of contact 22 Front end of contact 23 Contact part of contact 25 Contact protrusion of contact 31 Rotation of lock insulator Moving shaft 33 Lock insulator jaw 35 Lock insulator engaging protrusion H Insertion groove S Push-in hole

Front page continuation (72) Inventor Kazuaki Ibaraki 1-26-1 Dogenzaka, Shibuya-ku, Tokyo Japan Aviation Electronics Industry, Ltd. (72) Inventor Hiroshi Onuki 1-21-6 Dogenzaka, Shibuya-ku, Tokyo Inside the Aviation Electronics Industry Co., Ltd. (72) Inventor Koji Hayashi 1-21-6 Dogenzaka, Shibuya-ku, Tokyo Inside Japan Aviation Electronics Industry Co., Ltd. (72) Tatsuichi Morino 1-21-1 Dogenzaka, Shibuya-ku, Tokyo No. 6 in Nihon Aviation Electronics Industry Co., Ltd. (56) References Japanese Patent Laid-Open No. 1-35976 (JP, A) SAIKAI Sho 59-178885 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A contact having a contact portion that comes into contact with a flat plate-shaped connected body, a base insulator that holds the contact, and a base insulator that is pivotally supported by the base insulator and presses the flat plate-shaped connected body against the contact. A connector comprising a lock insulator, wherein the base insulator has a plurality of insertion groove portions formed in a row on one side to hold a plurality of the contacts, and the plurality of insertion groove portions of the contacts. A locking protrusion is formed on the end of the flat insulator, and the lock insulator includes a push-in hole for pushing the tip end of the flat plate-like connected body and a pressing portion against the contact portion of the flat plate-like connected body. A connector, comprising: an engaging protrusion that engages with the locking protrusion when connected.