JPS6237341Y2 - - Google Patents

Description

Detailed Description of the Invention This invention relates to a connector in which a large number of connector pins protruding in a circular arrangement on a connector plug are brought into contact with contacts provided in the same arrangement on a connector socket.

In general, this type of connector has an annular plug insertion groove 2 in a mold base 1 as shown in FIG. U
Connector socket 5 housing mold contacts 4
and a connector plug 8, which has a cylindrical insertion tube portion 6 that is inserted into the plug insertion groove 2, and has connector pins 7 protruding in a circular arrangement corresponding to the contacts 4 inside the insertion tube portion 6. Those that did were common.

However, such conventional connectors have a plug insertion groove spaced apart from the contact storage groove, and the connector plug insertion cylinder and connector pin are arranged in correspondence with this groove, making it compact. However, there is a limit to how much space can be achieved due to the need to maintain a certain distance or more between adjacent contacts.

In addition, the tip of the connector pin inside the insertion tube of the connector plug is separated from the other parts, so when it is miniaturized, the strength of the connector pin itself decreases and it is easily bent by external force, and the connector pin is U-shaped. Since the connector needs to be inserted into the center of the contact, any misalignment caused by manufacturing errors or bending can cause prying, leading to problems such as variations in the state of contact between each connector pin and the contact.

The present invention was devised in order to solve the above-mentioned problems.As mentioned above, in a connector in which a large number of connector pins are arranged in a circular arrangement and contacts are arranged in correspondence with this, the overall diameter is reduced. The purpose is to make the connector pins small, to make them difficult to bend even when the connector pins are made thin, and to ensure that each connector pin and contact are less likely to be twisted, and that the contact condition is uniform. , a connector plug having a cylindrical insertion tube portion and having a connector pin in contact with a circumferential surface of the insertion tube portion; and a plug insertion groove having an annular plug insertion groove into which the insertion tube portion can be freely inserted. A connector having a contact housing groove with one side open to the plug insertion groove side at a position corresponding to the connector pin on a side wall surface in the center direction, and a contact biased toward the plug insertion groove side is housed in the contact housing groove. A connector characterized in that when the connector plug is inserted into the connector socket, the connector pins are held between the contacts and the inner circumferential surface of the insertion cylinder of the connector plug. exists in

Next, an example of the implementation of the present invention will be explained with reference to the drawings from FIG. 2 onwards.

Fig. 2 is a partial vertical cross-sectional view of the fitted state;
The figure is a plan view of the connector socket, and FIG. 4 is a plan view of the connector plug.

In the figure, the symbol A indicates a connector socket, and the symbol B indicates a connector plug.The connector socket A has an annular plug insertion groove 11 formed in its mold base 10, and a wall surface on the side of the center of curvature of the plug insertion groove 11. A large number of contact housing grooves 12, 12, . . . are formed with one side open, and a contact 13 is housed in each of the contact housing grooves 12, respectively.

Further, the contact storage groove 12 has an open portion 12a on the side of the plug insertion groove 11 formed in a semicircular shape having approximately the same shape as the diameter of a connector pin, which will be described later.

The contact 13 is made of a conductive material,
A pin contact portion 13a is integrally protruded from the tip thereof, and the pin contact portion 13a is made to protrude into the aforementioned open portion 12a, and its base portion 13b is supported by the mold base 10. In addition, 14 in the figure is a concave groove for regulating the plug insertion angle.

On the other hand, connector plug B has its mold base 20
A cylindrical insertion tube portion 21 that fits into the plug insertion groove 11 described above is integrally molded. A connector pin 22 is provided upright in contact with the inner circumferential surface of the insertion tube portion 21 .

That is, on the inner peripheral surface of the insertion cylindrical portion 21, a semicircular cross section with approximately the same radius as the opening 12a is formed at a position corresponding to the opening 12a of the contact storage groove 12 of the connector socket A described above. A connector pin accommodating groove 23 is formed, approximately half of the circular cross section is fitted into the connector pin accommodating groove 23 to accommodate the connector pin 22, and the base 22a of the connector pin 22 is supported by the mold base 20. There is. In addition, 24 in the figure is a convex portion for regulating the plug insertion angle.

By fitting the connector plug B into the connector socket A in alignment with the plug insertion angle regulating concave groove 14 and the plug insertion angle regulating convex portion 24,
As shown in FIG. 5, the open portion 12a of the contact housing groove 12 and the connector pin housing groove 23 are aligned with each other, forming a substantially circular hole for positioning the connector pin, and the connector pin 22 is positioned at the center of the hole. That's what I do.

Then, the open portion 12a of the contact storage groove 12
By inserting the connector pin 22 inside, the connector pin 22 is pressed into contact with the pin contact portion 13a of the contact 13, and the elasticity of the contact 13 causes the connector pin 22 to contact the contact 13 and the insertion cylinder portion 21. It is designed to be sandwiched between the

In the above embodiment, the contact is supported only by its base on the mold base and presses the connector pin, but as shown in FIG. 6, a U-shaped contact 15 is used, and one of the contacts Piece 1
5a, and the other side is a bearing pressure piece 15b, and the bearing pressure piece 15b abuts against the wall surface of the contact storage groove 12 to support the elastic force when the connector pin is inserted.

The connector of the present invention is constructed as described above, in which the connector pin is erected in contact with the inner surface of the insertion tube of the connector plug, and one side is opened in the plug insertion groove of the connector socket to form a contact storage groove. A contact with a contact part biased toward the open part is housed inside the contact, and the connector pin is inserted and sandwiched between the inner surface of the cylindrical part and the contact, thereby reducing the distance between adjacent contacts. This makes it possible to reduce the overall diameter while ensuring a sufficient amount of pressure, and since the connector pin is in contact with the inner surface of the insertion tube, it is difficult to apply external force in the direction of bending, and the contact has a structure that presses the connector pin from one side. This means that the occurrence of sagging has been reduced.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of a conventional connector, and Fig. 2 and the following drawings show an embodiment of the present invention.
3 is a plan view of the connector socket, FIG. 4 is a plan view of the connector plug, FIG. 5 is a partially enlarged sectional view, and FIG. 6 is a partially enlarged sectional view of another embodiment. FIG. A... Connector socket, B... Connector plug, 10... Mold base, 11... Plug insertion groove, 12... Contact storage groove, 13... Contact, 20... Mold base, 21... Insertion cylinder part , 22...connector pin, 23...connector pin accommodating groove.

Claims (1)

[Scope of utility model registration request] a connector plug having a cylindrical insertion tube portion and having a connector pin in contact with an inner circumferential surface of the insertion tube portion; and an annular plug insertion groove into which the insertion tube portion can be freely inserted; A connector having a contact housing groove with one side open to the plug insertion groove side at a position corresponding to the connector pin on a side wall surface in the center direction, and a contact biased toward the plug insertion groove side is housed in the contact housing groove. A connector characterized in that when the connector plug is inserted into the connector socket, the connector pins are held between the contacts and the inner circumferential surface of the insertion cylinder of the connector plug. .