Elastic double-acting test probe

Abstract

The utility model discloses an elastic force-dividing double-acting test probe, which comprises a first tube body, a limiting ring is arranged in the first tube body, a first probe is arranged at one end of the first tube body, an annular first convex part is outwards formed on the side wall of the first probe, and a second convex part is arranged at the other end of the first tube body. A first protruding part is arranged at one end of the first pipe body, a first spring is arranged between the first protruding part and the ring wall of the limiting ring, a second probe is arranged at the other end of the first pipe body, an annular second protruding part is outwards formed on the side wall of the second probe, and a second spring is arranged between the second protruding part and the ring wall of the limiting ring. According to the invention, an elastic separation structure is adopted, and the elastic force of the first probe and the elastic force of the second probe are separated through the spring and the limiting ring, so that the contact product end and the PCB can adopt different elastic forces, contact testing is more convenient, the PCB can be better protected, the loss of the PCB part can be reduced, and the service life of the product is longer; the labor intensity of workers and the labor cost of enterprises can be greatly reduced, and use is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the field of test probes, in particular to a split-elastic double-action test probe. Background Art

[0002] A test probe is a test connection electronic component used to test PCBA and product performance in electronic testing. The types of test probes include PCB probes, ICT functional test probes (automotive wiring harness test probes, battery probes, current and voltage probes, switch probes, capacitor polarity probes, high-frequency probes), BGA test probes, etc.

[0003] In the prior art, different types of probes require different probe elasticity. For example, a larger elasticity is required at the end that contacts the product, which is more convenient for contacting the test probe, such as a battery probe and a car harness probe, while a smaller elasticity test probe is used at the end that contacts the PCB, which is more conducive to protecting the PCB board and making the life of PCB products longer. Therefore, when conducting different tests, probes with different elasticities need to be used, which causes a lot of extra costs for enterprises when purchasing and related production. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a divided elastic double-action test probe, including a first tube body, a limiting ring is arranged inside the first tube body, the limiting ring is coaxially sleeved and fixed with the first tube body, the first probe is arranged at one end of the first tube body, the side wall of the first probe is formed with a first annular protrusion outwardly, a first spring is arranged between the first protrusion and the ring wall of the limiting ring, the other end of the first tube body is arranged with a second probe, the side wall of the second probe is formed with a second annular protrusion outwardly, and a second spring is arranged between the second protrusion and the ring wall of the limiting ring.

[0005] Furthermore, the needle body of the first probe passes through the first spring and the inner side of the limiting ring.

[0006] Furthermore, convergent portions are provided at both ends of the first tube body, and the convergent portions restrict the first protruding portion and the second protruding portion within the first tube body.

[0007] The utility model provides another type of split-elastic double-action test probe, which differs from the first type in that it also includes a second tube body, which is inserted into the interior of the first tube body from one end of the first tube body, the limiting ring is fixedly arranged in the first tube body and is sleeved and fixed by one end of the second tube body, the first spring is arranged between the first protrusion and the tube wall of the second tube body, and the second probe is arranged at the other end of the first tube body and is sleeved and fixed by the other end of the second tube body.

[0008] Furthermore, the needle body of the first probe passes through the first spring and is inserted into the inner side of the limiting ring in the second tube body.

[0009] Furthermore, a converging portion is provided at both ends of the first tube body and the second tube body, and the converging portion limits the first protruding portion within the first tube body, and limits the second protruding portion and the limiting ring within the second tube body.

[0010] In addition, the utility model provides another third type of divided elastic double-action test probe, including a first tube body, a limiting tube is arranged inside the first tube body, the limiting tube is coaxially sleeved and fixed together with the first tube body, the first probe is arranged at one end of the first tube body, the side wall of the first probe is formed with a first annular protrusion outwardly, a first spring is arranged between the first protrusion and the tube wall of the limiting tube, a second probe is arranged at the other end of the first tube body, the side wall of the second probe is formed with a second annular protrusion outwardly, a second spring is arranged between the second protrusion and the first protrusion, and the second spring passes through the inner side of the limiting tube.

[0011] Furthermore, the needle body of the second probe passes through the second spring and the inner side of the limiting tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Compared with the prior art, the present application adopts a structure that separates the elastic force, and separates the elastic force of the first probe and the second probe through a spring and a limit ring, so that the end contacting the product can use one elastic force, which is more convenient for contact testing, and the end contacting the PCB uses another elastic force, which is more conducive to protecting the PCB board, can reduce the loss of the PCB part, and make the life of PCB products longer. The design steps are simple and cost-saving. Its implementation can greatly reduce the labor intensity of workers and reduce the labor cost of enterprises, and it is more convenient and quick to use.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model of the split-elastic double-action test probe;

[0017] Figure 2 It is a structural cross-sectional view of the first embodiment of the utility model of the split-elastic double-action test probe;

[0018] Figure 3 It is a structural cross-sectional view of the working state of the first embodiment of the split-elastic double-action test probe of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a second embodiment of the utility model of a split-elastic double-action test probe;

[0020] Figure 5 It is a structural cross-sectional view of a second embodiment of the utility model of a split-elastic double-action test probe;

[0021] Figure 6 It is a structural cross-sectional view of the working state of the second embodiment of the split-elastic double-action test probe of the utility model;

[0022] Figure 7 It is a structural schematic diagram of a third implementation mode of the split-elastic double-action test probe of the utility model;

[0023] Figure 8 It is a structural cross-sectional view of a third embodiment of the utility model of a split-elastic double-action test probe;

[0024] Fig. 9 This is a structural cross-sectional view of the working state of the third implementation mode of the split-elastic double-action test probe of the utility model.

[0025] The reference numerals and names in the figures are as follows:

[0026] The first tube body 100 , the limiting ring 110 , the first probe 200 , the first protruding portion 210 , the first spring 300 , the second probe 400 , the second protruding portion 410 , the second spring 500 , the constricting portion 120 , the second tube body 600 , and the limiting tube 130 . DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The present invention is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0032] The preferred implementation of the utility model is now further described in conjunction with the accompanying drawings. Figures 1 to 3As shown, the split elastic double-action test probe comprises a first tube body 100, a limiting ring 110 is arranged inside the first tube body 100, the limiting ring 110 is coaxially sleeved and fixed with the first tube body 100, the first probe 200 is arranged at one end of the first tube body 100, the side wall of the first probe 200 is formed with an annular first protrusion 210 outwardly, and a first spring 300 is arranged between the first protrusion 210 and the ring wall of the limiting ring 110. When the first probe 200 contacts an external object and is compressed, since the limiting ring 110 is coaxially sleeved and fixed with the first tube body 100, when the first probe 200 moves inward along the first tube body 100, the distance between the first protrusion 210 and the limiting ring 110 is compressed, thereby causing the first probe 200 to move inwardly. A spring 300 is compressed, so the elastic force of the first probe 200 is only related to the force applied to the first spring 300. A second probe 400 is provided at the other end of the first tube body 100. A second annular protrusion 410 is formed outwardly on the side wall of the second probe 400. A second spring 500 is provided between the second protrusion 410 and the annular wall of the limiting ring 110. When the second probe 400 contacts an external object and is compressed, since the limiting ring 110 is coaxially sleeved and fixed with the first tube body 100, when the second probe 400 moves inward along the first tube body 100, the distance between the second protrusion 410 and the limiting ring 110 is compressed, thereby causing the second spring 500 to be compressed. Therefore, the elastic force of the second probe 400 is only related to the force applied to the second spring 500. The present application adopts a structure that separates the elastic force, and separates the elastic force of the first probe 200 and the second probe 400 through a spring and a limit ring 110, so that the end contacting the product can use one elastic force, which is more convenient for contact testing, and the end contacting the PCB uses another elastic force, which is more conducive to protecting the PCB board, can reduce the loss of the PCB part, and make the life of PCB products longer. The design steps are simple and cost-saving. Its implementation can greatly reduce the labor intensity of workers and reduce the labor cost of enterprises, and it is more convenient and quick to use.

[0033] On the basis of the above embodiments, Figures 1 to 3 As shown, the needle body of the first probe 200 passes through the inner side of the first spring 300 and the limiting ring 110, that is, the first spring 300 and the limiting ring 110 are sleeved on the needle body of the first probe 200. In this way, when the elastic force of the first spring 300 is relatively large, the first probe 200 contacts an external object and is compressed, resulting in the first spring 300 being compressed, which can form a guide for the compression path of the first probe 200.

[0034] On the basis of the above embodiments, Figures 1 to 3As shown, a convergence portion 120 is provided at both ends of the first tube body 100 , and the convergence portion 120 limits the first protrusion 210 and the second protrusion 410 within the first tube body 100 .

[0035] Based on the above embodiment, the present application also discloses a second embodiment, combining Figures 4 to 6 As shown, compared with the first embodiment, the scheme also includes a second tube body 600, the second tube body 600 is inserted into the first tube body 100 from one end of the first tube body 100, the limiting ring 110 is fixedly arranged in the first tube body 100 and is sleeved and fixed by one end of the second tube body 600, the first spring 300 is arranged between the first protrusion 210 and the tube wall of the second tube body 600, when the first probe 200 contacts the external object and is compressed, the distance between the first protrusion 210 and the second tube body 600 is compressed, thereby causing the first spring 300 to be compressed, so the elastic force of the first probe 200 is only related to the force of the first spring 300, The second probe 400 is arranged at the other end of the first tube body 100 and is sleeved and fixed by the other end of the second tube body 600. A second spring 500 is arranged between the second protrusion 410 and the ring wall of the limiting ring 110. When the second probe 400 contacts an external object and is compressed, since the limiting ring 110 and the first tube body 100 are coaxially sleeved and fixed together, when the second probe 400 moves inward along the first tube body 100, the distance between the second protrusion 410 and the limiting ring 110 is compressed, thereby causing the second spring 500 to be compressed. Therefore, the elastic force of the second probe 400 is only related to the force of the second spring 500. The problem solved by the second embodiment is the same as that of the first embodiment, but in terms of effect, since the first probe 200 and the second probe 400 are arranged in different tubes, the mutual influence is smaller during the test, which can further improve the accuracy of the test.

[0036] On the basis of the above embodiments, Figures 4 to 6 As shown, the needle body of the first probe 200 passes through the first spring 300 and is inserted into the inner side of the limiting ring 110 in the second tube 600, that is, the first spring 300 and the limiting ring 110 are sleeved on the needle body of the first probe 200. In this way, when the elastic force of the first spring 300 is relatively large, the first probe 200 contacts an external object and is compressed, resulting in the first spring 300 being compressed, which can form a guide for the compression path of the first probe 200.

[0037] On the basis of the above embodiments, Figures 4 to 6As shown, a converging portion 120 is provided at both ends of the first tube body 100 and the second tube body 600 , and the converging portion 120 limits the first protruding portion 210 within the first tube body 100 , and limits the second protruding portion 410 and the limiting ring 110 within the second tube body 600 .

[0038] Based on the above two embodiments, Figures 7 to 9 As shown, the present application also discloses a third embodiment. Compared with the first embodiment, the limiting ring 110 is replaced by a limiting tube 130 in this embodiment. Specifically, a limiting tube 130 is arranged inside the first tube body 100, and the limiting tube 130 is coaxially sleeved and fixed with the first tube body 100. The first probe 200 is arranged at one end of the first tube body 100, and a first annular protrusion 210 is formed outwardly on the side wall of the first probe 200. A first spring 300 is arranged between the first protrusion 210 and the tube wall of the limiting tube 130. When the first probe 200 contacts an external object and is compressed, the distance between the first protrusion 210 and the limiting tube 130 is compressed, thereby causing the first spring 300 to be compressed. , so the elastic force of the first probe 200 is only related to the force of the first spring 300, the other end of the first tube body 100 is provided with a second probe 400, the side wall of the second probe 400 is formed with an annular second protrusion 410 outwardly, and a second spring 500 is provided between the second protrusion 410 and the first protrusion 210, and the second spring 500 passes through the inner side of the limiting tube 130, when the second probe 400 contacts the external object and is compressed, when the second probe 400 moves inward along the first tube body 100, the distance between the second protrusion 410 and the first protrusion 210 is compressed, thereby causing the second spring 500 to be compressed, so the elastic force of the second probe 400 is only related to the force of the second spring 500. Compared with the first embodiment and the second embodiment, the present embodiment further lengthens the length difference between the first spring 300 and the second spring 500, so that the difference in elastic force between the first probe 200 and the second probe 400 is more obvious.

[0039] Further on the basis of the above embodiment, the needle body of the second probe 400 passes through the inner side of the second spring 500 and the limiting tube 130, that is, the second spring 500 and the limiting tube 130 are sleeved on the needle body of the second probe 400. In this way, when the elastic force of the second spring 500 is relatively large, the second probe 400 contacts an external object and is compressed, causing the second spring 500 to be compressed, thereby forming a guide for the compression path of the second probe 400.

[0040] The above exemplary embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A spring-loaded double-action test probe, characterized in that: The invention comprises a first tube body (100), a limiting ring (110) is arranged inside the first tube body (100), the limiting ring (110) and the first tube body (100) are coaxially sleeved and fixed together, a first probe (200) is arranged at one end of the first tube body (100), a first annular protrusion (210) is formed outwardly on the side wall of the first probe (200), a first spring (300) is arranged between the first protrusion (210) and the ring wall of the limiting ring (110), a second probe (400) is arranged at the other end of the first tube body (100), a second annular protrusion (410) is formed outwardly on the side wall of the second probe (400), and a second spring (500) is arranged between the second protrusion (410) and the ring wall of the limiting ring (110).

2. The split-elastic double-action test probe according to claim 1, characterized in that: The needle body of the first probe (200) passes through the first spring (300) and the inner side of the limiting ring (110).

3. The split-elastic double-action test probe according to claim 1, characterized in that: Converging portions (120) are provided at both ends of the first tube body (100), and the converging portions (120) restrict the first protruding portion (210) and the second protruding portion (410) within the first tube body (100).

4. The split-spring double-action test probe according to claim 1, characterized in that: The invention also comprises a second tube body (600), wherein the second tube body (600) is inserted into the interior of the first tube body (100) from one end of the first tube body (100), the limiting ring (110) is fixedly arranged in the first tube body (100) and is sleeved and fixed by one end of the second tube body (600), the first spring (300) is arranged between the first protruding portion (210) and the tube wall of the second tube body (600), and the second probe (400) is arranged at the other end of the first tube body (100) and is sleeved and fixed by the other end of the second tube body (600).

5. The split-elastic double-action test probe according to claim 4, characterized in that: The needle body of the first probe (200) passes through the first spring (300) and is inserted into the inner side of the inner limiting ring (110) of the second tube (600).

6. The split-elastic double-action test probe according to claim 4, characterized in that: Converging portions (120) are provided at both ends of the first tube body (100) and the second tube body (600), and the converging portions (120) confine the first protruding portion (210) within the first tube body (100), and confine the second protruding portion (410) and the limiting ring (110) within the second tube body (600).

7. Spring-loaded double-action test probe, characterized in that: The invention comprises a first tube body (100), a limiting tube (130) is arranged inside the first tube body (100), the limiting tube (130) and the first tube body (100) are coaxially sleeved and fixed together, a first probe (200) is arranged at one end of the first tube body (100), a first annular protrusion (210) is formed outwardly on the side wall of the first probe (200), a first spring (300) is arranged between the first protrusion (210) and the tube wall of the limiting tube (130), a second probe (400) is arranged at the other end of the first tube body (100), a second annular protrusion (410) is formed outwardly on the side wall of the second probe (400), a second spring (500) is arranged between the second protrusion (410) and the first protrusion (210), and the second spring (500) passes through the inner side of the limiting tube (130).

8. The split-spring double-action test probe according to claim 7, characterized in that: The needle body of the second probe (400) passes through the second spring (500) and the inner side of the limiting tube (130).

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