CN201149917Y

CN201149917Y - Spring type contact probe

Info

Publication number: CN201149917Y
Application number: CNU2007200614564U
Authority: CN
Inventors: 林璟宇
Original assignee: Dongguan CCP Contact Probes Co Ltd
Current assignee: Dongguan CCP Contact Probes Co Ltd
Priority date: 2007-12-14
Filing date: 2007-12-14
Publication date: 2008-11-12
Anticipated expiration: 2017-12-14

Abstract

The utility model relates to a spring type contact probe, which belongs to the technical field of the probe type connector. The spring type contact probe comprises an inner tube, a spring, a movable needle axle and a fixed needle axle, a straight hole which interpenetrates vertically is arranged in the inner tube, the movable needle axle and the fixed needle axle are respectively provided with limit steps and are nested in the straight hole at both ends of the inner tube to be riveted together with the inner tube, and the spring is arranged in the straight hole and is positioned between the movable needle axle and the fixed needle axle; the bottom of the movable needle axle is a bevel surface, one end of the spring is contacted with the bevel surface at the bottom of the movable needle axle, and the other end of the spring is contacted with the fixed needle axle; a limit flange is arranged on the inner wall on which the inner tube is nested with the fixed needle axle, the limit flange is tightly matched with the fixed needle axle, because the bottom of the needle axle is arranged as the bevel surface, the needle axle can decline during acting, the contact area of the inner tube is increased, the resistance value between the needle axle and the inner tube is reduced, the conduction stability of the connector is increased, and the needle axles are arranged at both ends of the spring type contact probe, thus the application range is wide.

Description

The spring contact probe

Technical field:

The utility model relates to probe-type connector technique field, refers in particular to a kind of spring contact probe.

Background technology:

Along with science and technology development, digital product emerges one after another, has been widely used such as portable sets such as digital camera, Digital Video, mobile phones, and the power supply that this type of portable set adopts mostly is rechargeable battery repeatedly greatly, therefore, rechargeable battery also is widely used.Generally contact between battery and the power consumption equipment by connector, existing connector commonly used generally comprises needle shaft, interior pipe and spring, spring is arranged in the cavity of interior pipe, in being socketed in, needle shaft contacts with spring in the cavity of pipe, needle shaft and interior pipe, spring riveted are one, and needle shaft can move both vertically up and down under the effect of external force and spring.During use, needle shaft 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 and interior pipe has direct relation, the size of resistance is inversely proportional to the contact area of needle shaft and interior pipe, be that the big more resistance of contact area is low more, the needle shaft of existing connector is done vertical up-or-down movement under the effect of spring, the contact area of needle shaft and interior pipe is little, thereby resistance is bigger and unstable; In some use occasion, we wish that the two ends of connector all have probe, and are more convenient to use like this, have probe but existing connector all is an end, can't satisfy the demand.

The utility model content:

The purpose of this utility model is to have deficiency and a kind of spring contact probe is provided at prior art, needle shaft and interior pipe contact area that it has overcome existing connector are little, and the shortcoming that resistance is big makes electric power transfer more stable, and two ends all have probe, can use in various occasions.

To achieve these goals, the technical solution adopted in the utility model is: the spring contact probe comprises interior pipe, spring, movable needle shaft and fixing needle shaft, interior pipe offers the straight hole of up/down perforation, movable needle shaft and locking pin axle sleeve are respectively equipped with limited step, in being connected on, movable needle shaft and locking pin axle sleeve manage in the straight hole at two ends, with interior pipe riveted be one, spring is installed in the straight hole, and at movable needle shaft with fixedly between the needle shaft; The bottom of movable needle shaft is the inclined-plane, and the inclined-plane of spring one end bottom movable needle shaft contacts, and the other end contacts with fixing needle shaft; Interior pipe socket fixedly the inwall of needle shaft be provided with defining flange, this defining flange and fixedly needle shaft closely cooperate.

Described movable needle shaft and fixedly the end face of the exposed junction of needle shaft all be ball face shape.

Described defining flange is the interruption salient point that inner tube wall forms.

Described defining flange is the annular flange flange that inner tube wall forms.

The end that described fixedly needle shaft contacts with spring offers and the fixing coaxial hole of needle shaft, in the spring patchhole.

The end face that described fixedly needle shaft contacts with spring is the plane.

The beneficial effects of the utility model are: because the bottom of needle shaft is made as the inclined-plane, make that needle shaft can run-off the straight when action, increase the contact area with interior pipe, and then reduce the resistance between needle shaft and the interior pipe, increase the stability that connector conducts; In addition, be provided with a fixing needle shaft at the other end of interior pipe, by get ready at outer wall of inner tube or the straight hole of slot rolling mode pipe in fixedly needle shaft is fixed in, the connector that two ends have a needle shaft can satisfy the needs of different occasions, so the utility model not only has good electrical connection effect, and applied range.

Description of drawings:

Fig. 1 is the perspective view of the utility model embodiment 1 and embodiment 2;

Fig. 2 is the front view of the utility model embodiment 1 and embodiment 2;

Fig. 3 is one of A-A cutaway view of Fig. 2;

Fig. 4 be Fig. 2 the A-A cutaway view two;

Fig. 5 is the perspective view of the utility model embodiment 3 and embodiment 4;

Fig. 6 is the front view of the utility model embodiment 3 and embodiment 4.

Embodiment:

See shown in Fig. 1,2,3, this is embodiment 1 of the present utility model, pipe 1 in the spring contact probe comprises, spring 2, movable needle shaft 3 and fixing needle shaft 4, interior pipe 1 offers the straight hole 11 of up/down perforation, movable needle shaft 3 and locking pin axle sleeve 4 are respectively equipped with

limited step

31,41, movable needle shaft 3 and in fixedly needle shaft 4 is socketed in the straight hole 11 at pipe 1 two ends, with interior pipe 1 riveted be one, spring 2 is installed in the straight hole 11, and at movable needle shaft 3 with fixedly between the needle shaft 4; The bottom of movable needle shaft 3 is inclined-plane 32, and described fixedly needle shaft 4 offers the hole 42 coaxial with fixing needle shaft 4, and spring 2 one ends contact with the inclined-plane 32 of movable needle shaft 3 bottoms, and other end insertion is fixedly in the hole 42 of needle shaft 4; In pipe 1 fixedly be provided with defining flange 12 on the inwall of needle shaft 4 in socket, this defining flange 12 is the interruption salient point that interior pipe 1 inwall forms, this interruption salient point can be by getting formation ready at interior pipe 1 outer wall, be interrupted salient point and fixedly needle shaft 4 closely cooperate, in the straight hole 11 with pipe 1 in fixedly needle shaft 4 is fixed on, because be made as inclined-plane 32 in the bottom of movable needle shaft 3, make movable needle shaft 3 when action, understand run-off the straight, increase contact area with interior pipe 1, and then reduce resistance between movable needle shaft 3 and the interior pipe 1, increase the stability of connector conduction.

Described movable needle shaft 3 and fixedly the end face of the exposed junction of needle shaft 4 all be ball face shape, contact to guarantee that the utility model and power consumption equipment are point-to-point.

See shown in Fig. 1,2,4 that this is embodiment 2 of the present utility model, as different from Example 1, in the present embodiment, the end face that described fixedly needle shaft 4 contacts with spring 2 is the plane, and other structures are identical with embodiment 1, no longer repeats here.

See shown in Fig. 3,5,6, this is embodiment 3 of the present utility model, as different from Example 1, in the present embodiment, described defining flange 12 is the annular flange flange that interior pipe 1 inwall forms, and this annular flange flange can be by forming at interior pipe 1 outer wall roll extrusion groove, to guarantee in the straight hole 11 with pipe 1 in fixedly needle shaft 4 is fixed on, other structures are identical with embodiment 1, no longer repeat here.

See shown in Fig. 4,5,6, this is embodiment 4 of the present utility model, as different from Example 1, in the present embodiment, described defining flange 12 is the annular flange flange that interior pipe 1 inwall forms, this annular flange flange can be by forming at interior pipe 1 outer wall roll extrusion groove, to guarantee in the straight hole 11 with pipe 1 in fixedly needle shaft 4 is fixed on; The end face that described fixedly needle shaft 4 contacts with spring 2 is the plane, and other structures are identical with embodiment 1, no longer repeats here.

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. spring contact probe, comprise interior pipe, spring, movable needle shaft and fixing needle shaft, interior pipe offers the straight hole of up/down perforation, it is characterized in that: movable needle shaft and locking pin axle sleeve are respectively equipped with limited step, in being connected on, movable needle shaft and locking pin axle sleeve manage in the straight hole at two ends, with interior pipe riveted be one, spring is installed in the straight hole, and at movable needle shaft with fixedly between the needle shaft; The bottom of movable needle shaft is the inclined-plane, and the inclined-plane of spring one end bottom movable needle shaft contacts, and the other end contacts with fixing needle shaft; Interior pipe fixedly is provided with defining flange on the inwall of needle shaft in socket, this defining flange and fixedly needle shaft closely cooperate.

2. spring contact probe according to claim 1 is characterized in that: described movable needle shaft and fixedly the end face of the exposed junction of needle shaft all be ball face shape.

3. spring contact probe according to claim 1 is characterized in that: described defining flange is the interruption salient point that inner tube wall forms.

4. spring contact probe according to claim 1 is characterized in that: described defining flange is the annular flange flange that inner tube wall forms.

5. according to claim 3 or 4 described spring contact probes, it is characterized in that: the end that described fixedly needle shaft contacts with spring offers and the fixing coaxial hole of needle shaft, in the spring patchhole.

6. according to claim 3 or 4 described spring contact probes, it is characterized in that: the end face that described fixedly needle shaft contacts with spring is the plane.