JPS594458Y2 - electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical connector having a structure capable of resisting a tensile force acting in the disconnection direction when the electrical connectors are connected to each other.

Conventional electric wire connections are made by connecting male and female connectors connected to each of the wires together with a coupler in which the connectors are inserted, and the force acting on the connected portions in the disconnection direction is increased. To counter the tensile force, there are mainly the holding force of a locking device called a lock that locks the couplers together, or the holding force of a connector separation preventer called a lance that locks the connector inside the coupler. It was common for the connector to separate if either of the holding forces exceeded the holding force.

However, since the above-mentioned lance is simply formed of a claw piece cut and raised inside the connector or coupler, the strength at that part is weak, and it can be easily broken by applying a slightly large tensile force to that part. However, the above-mentioned locked state had the disadvantage of collapsing.

In view of the above-mentioned drawbacks, the present application attempts to eliminate the above-mentioned drawbacks and to obtain reliable electrical contact at the relevant portions by directly interlocking the contacts.

An example of the implementation of the present invention will be explained below with reference to the drawings. 1 is a base plate part 4 which is connected to the wire connection part 2 and has a window 3 formed approximately at the rear of the center; 4 and a tongue piece 5 which is folded back to the front.

The wire connecting portion 2 is cut out from the insulation barrel 6 and the wire barrel 7, each having a substantially square-shaped end surface, and is connected to the substrate portion 4 via a relay portion 8.

The base plate part 4 is formed in a substantially rectangular shape, and has a substantially rectangular window 3 formed from the substantially rear side, and has side walls 9a and 9b erected on both sides. Arm pieces 10a, 1 that protrude inwardly from each other in the horizontal direction
0b is formed.

The arm pieces 10a and 10b are cuffed as shown in FIG.

Connector body 1 is inserted into the recess provided in the connector housing opening of
is fixed inside the coupler.

The tongue piece 5 is folded back from the front side of the base plate part 4 to the front surface of the base plate part 4, and there is a gap between the tongue piece 5 and the surface of the base plate part 4 that is approximately the same as the thickness of the base plate part 4.
It extends to the front edge of the window 3 at intervals, and its width is slightly smaller than the width of the window 3.

Further, the tip of the tongue piece 5 is slightly narrowed toward the front to form tapered portions 11 a and 11 b.

The operation of the connector main body 1 having the above structure will be explained below. As shown in FIG. As shown in FIG.
' is inserted between the tongue pieces 5, 5' and the surface of the base plate parts 4, 4, and the base plate part 4' of the mating contact main body 1', 1 is inserted.

The connections are made between the surface of the board part 4 of the connector body 1 and the surface of the board part 4' of the connector body 1', and between the back surface of the board part 4 of the connector body 1 and the connector body. The electrical contact is good because it is in contact at three locations: the back surface of the tongue piece 5' of the connector body 1', the back surface of the tongue piece 5 of the connector body 1, and the back surface of the board portion 4' of the connector body 1'. It has become.

Note that FIGS. 4 and 5 show other embodiments, and the above-mentioned connector main body 1 has an arm extending from the front side of the board part 4 and bent toward the back surface of the board part 4. , are provided with locking arms 12a and 12b whose tips face the back surface of the board portion 4, and the locking arms 12a and 12b are connected to the connector body 1.
, 1', the connector body 1' comes into contact with the back surface of the board parts 4, 4'.
, 1 are pressed from above to make the contact more reliable.

The ends of the locking arms 12a, 12b facing the back surface of the base plate 4 are cut up in an arc shape in the direction of insertion of the tongue piece 5', and guide parts 13, 13' are formed in these parts.

In short, the present invention consists of a connector main body 1 connected to a wire connection part 2 and a board part 4 with a window 3 bored from approximately the rear in the center, and a board part 4 which is folded back from the front end of the board part 4 to the surface of the board part 4. When the connector body 1 is connected to the connector body 1' of the same type, the tongue pieces 5', 5 are hooked to the front edges of the windows 3, 3', respectively. Therefore, the connector body 1, 1'
The mutual connection is securely locked in the direction of separation, and since there are as many as three contact points, the connection is reliable.

On the other hand, since the connector main body 1 is provided with locking arms 12 a and 12 b which are curved from the front side of the board part 4 toward the back surface of the board part 4 and have their tips facing the back surface of the board part 4, There are five contact points on the connector bodies 1, 1', and the contact points are contacted while being elastically supported by the locking arms 12a, 12b, so that good electrical contact is obtained. It is possible.

Furthermore, since the connector main body 1 of the present invention is hermaphroditic, its production, quality control, and installation are significantly effective.

[Brief explanation of drawings]

The figures show an example of the implementation of the present invention. Figure 1 is a perspective view showing a pair of connector bodies according to the present invention facing each other, Figure 2 is a sectional view of the same, and Figure 3 is a pair of connections. 4 is a cross-sectional view showing a state in which the child bodies are connected; FIG. 4 is a perspective view showing a state in which a pair of connector bodies of another embodiment are opposed; FIG. 5 is a state in which the connector bodies are connected to each other. FIG. 6 is a cross-sectional view showing the connector main body housed in the coupler. 1... Connector body, 2... Wire connection section, 3... Window, 4... Board section, 5...
... tongue piece, 12 a , 12 b ... locking arm.

Claims (2)

[Scope of utility model registration request] (1) The connector main body is made up of a board part that is connected to the wire connection part and has a window bored from approximately the center back, and a tongue piece that is folded back from the tip of the board part to the front of the board part surface. An electrical connector characterized in that it is formed. (2) A utility model characterized in that a pair of locking arms are extended from both sides of the front side of the board part of the connector main body, are curved toward the front surface of the board part, and have their tips facing the back surface of the board part. An electrical connector according to claim 1.