CN201450158U

CN201450158U - Elastic needle type connector with insulated rubber core

Info

Publication number: CN201450158U
Application number: CN2009200606529U
Authority: CN
Inventors: 林璟宇
Original assignee: Dongguan CCP Contact Probes Co Ltd
Current assignee: Dongguan CCP Contact Probes Co Ltd
Priority date: 2009-07-17
Filing date: 2009-07-17
Publication date: 2010-05-05
Anticipated expiration: 2019-07-17

Abstract

The utility model relates to the technical field of connectors, in particular to an elastic needle type connector with insulated rubber core. The elastic needle type connector comprises an inner pipe, a spring and a needle shaft which is provided with a blind hole, and further consists of a rubber core made from insulation material, wherein the rubber core is provided with a blind hole whose bottom is provided with an inclined plane portion, the rubber core is fixed in the blind hole of the needle shaft, the spring is located in the cavity of the inner pipe, one end of the spring is contacted with the bottom of the cavity of the inner pipe, and the other end thereof is contacted with the inclined plane portion of the rubber core, and one end of the needle shaft, which is provided with a limit step is riveted with the inner pipe together. The rubber core plays the role of insulation protection, can avoid overheating or burning out the spring with higher resistance when inputting or outputting electric current, and prolongs the service life of the connector.

Description

Bullet pin type connector with insulating cement core

Technical field:

The utility model relates to the connector technique field, refers in particular to a kind of bullet pin type connector with insulating cement core.

Technical background:

Along with science and technology development, digital product emerges one after another, be widely used such as portable sets such as digital camera, Digital Video, laptop computer, mobile phone and PDA, the power supply that this type of portable set adopts mostly is rechargeable battery repeatedly greatly, therefore, rechargeable battery also is widely used.Generally be connected between battery and the power consumption equipment by connector, the top enterprise of the development and the world that makes rapid progress along with industrial technology is to high-quality pursuit, every profession and trade is also more and more higher to the requirement of connector, mainly shows to wish that connector has lower and stable resistance, cuts down the consumption of energy and the requirement of environmental protection aspect such as low noise.

The resistance of connector is except outside the Pass having with the material of using, also the contact stabilization with needle shaft and interior pipe has direct relation, see Fig. 1,2, connector commonly used generally comprises needle shaft 101, interior pipe 102 and spring 103, in the cavity of pipe 102, needle shaft 101 was riveted on interior pipe 102 and contacts with spring 103 in spring 103 was assemblied in.During use, needle shaft 101 directly contacts with power supply, usefulness as the electric power conduction, general mobile phone connector requires the resistance of connector lower, the resistance of connector is except outside the Pass having with the material of using, also the contact area with needle shaft 101 and interior pipe 102 has direct relation, the size of resistance is inversely proportional to the contact area of needle shaft 101 with interior pipe 102, be that the big more resistance of contact area is more little, therefore, in order to increase the contact area of needle shaft 101 and interior pipe 102, with the end face beveling that needle shaft 101 contacts with spring 103, eccentric motion can take place in needle shaft 101 under the effect of spring 103, increases the contact area of needle shaft 101 and interior pipe 102, promptly reduce the resistance between needle shaft 101 and the interior pipe 102, it is effective to make that connector electrically connects.But, the spring 103 of tradition connector is direct conductings with needle shaft 101, when resistance diminished, the electric current of process spring 103 will become greatly, because the size of connector is very little, the size of spring 103 is also smaller, when bigger electric current passes through spring 103 for a long time, can make spring 103 continuous high temperature states, spring 103 is burnt easily, make connector lose normal conducting function, influence the normal use of electronic equipment.

The utility model content:

The purpose of this utility model is to have deficiency and a kind of bullet pin type connector with insulating cement core is provided at prior art, and it is by the glue core spring and needle shaft to be isolated, and avoids electric current to pass through spring, reduces the thermal effect of this product.

To achieve these goals, the technical solution adopted in the utility model is:

Bullet pin type connector with insulating cement core with insulating cement core, comprise interior pipe, spring and needle shaft, needle shaft offers blind hole, also comprises the glue core that a usefulness insulating material is made, and the glue core offers blind hole, the blind hole bottom has inclined plane part, the glue core is fixed in the blind hole of needle shaft, and spring is positioned at the cavity of pipe, and spring one end contacts with the cavity bottom of interior pipe, the other end contacts with the inclined plane part of glue core, and an end and interior pipe riveted that needle shaft is provided with limited step are structure as a whole.

The end face of described needle shaft exposed junction is the ball face.

The external diameter of described spring is identical with the blind hole internal diameter that the glue core is offered.

Described spring is the straight barrel type spring.

The beneficial effects of the utility model: because be provided with the inclined-plane in the bottom of glue core, make needle shaft under the effect of compression spring, understand run-off the straight, thereby increased needle shaft with interior pipe stability in contact, reduce the fluctuation of resistance between needle shaft and the interior pipe effectively, increased the stability of connector conduction; The glue core plays the insulation protection effect, prevents from phenomenon overheated even that burn to occur by the bigger spring of resistance when electric current from inputing or outputing, and prolongs the useful life of connector.

Description of drawings:

Fig. 1 is the front view of existing connector;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is a perspective view of the present utility model;

Fig. 4 is a front view of the present utility model;

Fig. 5 is the B-B cutaway view of Fig. 4.

Embodiment:

See shown in Fig. 3,4,5, pipe 1, spring 2 and needle shaft 3 in the utility model comprises, needle shaft 3 offers blind hole 3a, also comprises the glue core 4 that a usefulness insulating material is made, and glue core 4 offers blind hole 4a, blind hole 4a bottom has inclined plane part 4b, glue core 4 is fixed in the blind hole 3a of needle shaft 3, and spring 2 is positioned at the cavity of pipe 1, and spring 2 one ends contact with the cavity bottom of interior pipe 1, the other end contacts with the inclined plane part 4b of glue core 4, and an end and interior pipe 1 riveted that needle shaft 3 is provided with limited step are structure as a whole.

The end face of described needle shaft 3 exposed junctions is the ball face.

The external diameter of described spring 2 is identical with the blind hole 4a internal diameter that glue core 4 is offered.

Described spring 2 is the straight barrel type spring.

The above embodiment, it is preferred embodiments of the present utility model, be not to be used for limiting the utility model practical range,, all should be included in the utility model patent claim so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify.

Claims

1. the bullet pin type connector that has the insulating cement core, comprise interior pipe, spring and needle shaft, needle shaft offers blind hole, it is characterized in that: also comprise the glue core that a usefulness insulating material is made, the glue core offers blind hole, the blind hole bottom has inclined plane part, the glue core is fixed in the blind hole of needle shaft, and spring is positioned at the cavity of pipe, and spring one end contacts with the cavity bottom of interior pipe, the other end contacts with the inclined plane part of glue core, and an end and interior pipe riveted that needle shaft is provided with limited step are structure as a whole.

2. the bullet pin type connector with insulating cement core according to claim 1, it is characterized in that: the end face of described needle shaft exposed junction is the ball face.

3. the bullet pin type connector with insulating cement core according to claim 1 is characterized in that: the external diameter of described spring is identical with the blind hole internal diameter that the glue core is offered.

4. the bullet pin type connector with insulating cement core according to claim 1, it is characterized in that: described spring is the straight barrel type spring.