JPS5911413Y2 - female contact - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a female contact used in electrical connections.

Recently, many connectors have been used for electrical wiring in automobiles, vending machines, etc., in which contacts formed from a conductive plate material with spring properties are incorporated into the outer shell of an insulating type product such as rubber or nylon. It is being

However, due to the nature of the outer shell material, such connectors
Since it is very susceptible to "squeezing", there is a problem in that when the female contacts are subjected to a squeezing force when they are fitted together, the female contacts are likely to deform and cause poor contact.

In view of this, conventionally, for example, in the case of a rubber shell product, as shown in Fig. The sleeve is shown in chain lines.

), and a structure is adopted that prevents the contact pieces 3 and 4 from opening too much.

However, with this structure, the female contact 1 and the sleeve 2 have a two-piece structure, and not only do these two parts have to be assembled, but the sleeve 2 also requires processing such as "squeezing" and "forging." Because of this, there are many troublesome points in processing and assembly.

Therefore, an object of the present invention is to provide a female contact that is easy to manufacture and has excellent pinch resistance.

The present invention will be described below using examples with reference to FIG. 2 and subsequent figures.

FIG. 2 shows an embodiment of the present invention.

This female contact has a shape as shown in a developed view in FIG. 3 and is made of a conductive flat plate member 10 having spring properties.

That is, the flat plate member 10 has an overlapping portion 13 having a claw 12 on one side 11 near one end in the longitudinal direction, a window 15 near the other side 14, and both sides 11 and 14. The spring piece 17 is shaped by making a notch 16 in the middle part, and is rolled up so that both sides 11 and 14 face each other, in which case the overlapping part 13 is overlapped inside the part near the other side 14, and the claw is 12 and hang it on the window 15, and bend the spring piece 17 so that it slightly protrudes inward, and the parts indicated by chain lines on both sides of this spring piece 17 extend inward as shown in FIG. to form dowels 18 and 19.

Thus, as shown in FIG. 2, there is a cylindrical part 20 for receiving the male contact, a holding part 21 for holding it in the connector housing, and a connection part 2 for crimping the core wire of the electric wire.
A female contact with 2 is obtained.

In the cylindrical portion 20 of such a female contactor, there are shown in FIGS.
When the male contact 23 is inserted as shown in the figure, the spring piece 17
Electrical connection is obtained by pressing the male contact 23 into contact with the male contact 23.

In order to facilitate insertion of the male contact 23 at this time, the tip of the spring piece 17 is rounded and slightly bent outward.

In the female contact having the above-described structure, although the flat plate member 10 is rounded to form the cylindrical portion 20, the claws 12
is hooked on the window 15, so that the seam 24 will not open even if a bending force is applied to the male contact 23 inserted into the cylindrical portion 20. Since the dowels 18 and 19 are shaped, the male contact 23
When the spring pieces 17 are greatly pinched in a direction that causes the spring pieces 17 to deform, the dowels 18 and 19 receive the male contacts 23 to prevent the spring pieces 17 from being excessively deformed.

The shapes of the spring piece 17 and the holding part 21 are not limited to the illustrated embodiment, and various modifications are possible, and the connection part 22 may have a soldered structure.

As explained above, the female contact of the present invention is made from a flat plate member, so it is inexpensive, is strong against the pinching of the inserted male contact, and has excellent contact performance with the male contact. .

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional female contact, Fig. 2 is a perspective view of an embodiment of the female contact according to the present invention, Fig. 3 is an exploded view, and Fig. 4 is an exploded perspective view. A front view of the cylindrical portion of the same embodiment, and FIG. 5 is a sectional view taken along the line v-V. 10... Flat plate member, 11... One side, 12... Claw,
13... overlapped part, 14... other side, 15... window, 1
7... Spring piece, 20... Cylindrical part, 23... Male contact.

Claims (1)

[Scope of utility model registration request] A stacked part 13 having a claw 12 is formed on one side 11 of the cylindrical part 20 into which the male contact is inserted, and a window 1 is formed in the vicinity of the other side 14.
5, the claw 12 and the overlapping part 13 are stacked on the inside of the vicinity of the other side 14, the claw 12 is bent and hooked on the window 15, and the one side 11 and the other side of the cylindrical part 20 are bent. A spring part 17 protruding inwardly from the cylindrical part 20 and dowels 18 and 19 protruding inwardly from the cylindrical part 20 from the vicinity of both sides of the spring part 17 in the circumferential direction are provided between the parts 14 and 14. A female contactor characterized in that excessive deformation of the spring portion 17 caused by the male contactor is prevented by receiving the male contactor in the dowels 18 and 19.