Stable contact electric connector and spring probe thereof
By designing an inclined surface and a spring segment structure on the conductive sliding body, the problems of unstable contact and poor current carrying capacity in existing electrical connectors are solved, and close contact and strong current carrying capacity between the conductive sliding body and the conductive seat are achieved.
Patent Information
- Application Number
- CN202422723205.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In existing electrical connectors, the contact between the needle shaft and the needle tube is unstable and the flow capacity is poor.
The first end face of the conductive sliding body is designed to have an inclined surface inclined relative to the sliding direction, and the spring includes first and second connected spring segments. The outer diameter of the second spring segment is larger than the first spring segment. The inclined surface is used to press and provide lateral force, so that the conductive sliding body is in close contact with the conductive base.
The contact stability and current carrying capacity between the conductive sliding body and the conductive seat body are improved.
Smart Images
Figure CN223348024U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an electric connector, in particular to a stable contact electric connector and a spring probe thereof. Background Art
[0002] As is known to all, electrical connectors are widely used in electronic products to achieve electrical connections between electronic components to meet the requirements of charging, discharging and / or data transmission.
[0003] Currently, existing electrical connectors include a needle tube, a needle shaft, and a spring disposed within the needle tube. The spring forces the needle shaft to slide out of the needle tube, allowing the spring to maintain close contact with external electronic components.
[0004] However, in existing electrical connectors, the contact between the needle shaft and the needle tube has the defects of unstable contact and poor flow capacity.
[0005] Therefore, there is an urgent need for a stable contact electrical connector and a spring probe thereof to overcome the above-mentioned defects. Utility Model Content
[0006] One purpose of the utility model is to provide a spring probe with stable contact and strong flow capacity.
[0007] Another object of the present invention is to provide a stable contact electrical connector with stable contact and strong flow capacity.
[0008] To achieve the above-mentioned objectives, the spring probe of the present invention includes a spring, a conductive slider, and a conductive base having a receiving cavity. The receiving cavity passes through the first end face of the conductive base, and the spring and the conductive slider are sequentially arranged in the receiving cavity. The spring allows the conductive slider to slide back and forth, and the conductive slider is exposed from the first end face of the conductive base. The conductive slider is provided with an embedding cavity, which passes through the first end face of the conductive slider facing the cavity end wall of the receiving cavity. The first end face of the conductive slider has an inclined surface that is inclined relative to the sliding direction of the conductive slider. The spring includes a first spring segment and a second spring segment connected to each other. The first spring segment is installed in the embedding cavity, and the second spring segment is located outside the embedding cavity and is pressed against by the inclined surface. The outer diameter of the second spring segment is larger than the outer diameter of the first spring segment.
[0009] Compared with the prior art, since the first end face of the conductive slider has an inclined surface inclined relative to the sliding direction of the conductive slider, combined with the "spring comprising a connected first spring segment and a second spring segment, the first spring segment is inserted into the embedding cavity, the second spring segment is located outside the embedding cavity and is pressed by the inclined surface, and the outer diameter of the second spring segment is larger than the outer diameter of the first spring segment", the design is such that the second spring segment of the spring is pressed during the downward pressing process of the conductive slider (i.e., shrinking inward), and the second spring segment provides lateral force to the conductive slider, so that the conductive slider and the conductive seat are in close contact, thereby ensuring strong contact stability and flow capacity between the conductive slider and the conductive seat.
[0010] Preferably, the end of the second spring segment away from the first end surface of the conductive slider abuts against an end wall of the accommodating cavity.
[0011] Preferably, the spring further includes a third spring segment connected to the second spring segment, the third spring segment and the first spring segment are arranged relative to each other with the second spring segment as the center, the outer diameter of the third spring segment is smaller than the outer diameter of the second spring segment, and the end of the third spring segment away from the second spring segment abuts against the end wall of the accommodating cavity.
[0012] Preferably, the slope of the inclined surface relative to the sliding direction of the conductive sliding body is 70 to 85 degrees.
[0013] Preferably, the conductive sliding body is provided with an inclined structure for expanding the opening of the embedding cavity.
[0014] Preferably, a limiting structure is provided on the side wall of the conductive sliding body, and a matching limiting structure facing the receiving cavity is correspondingly provided on the conductive base body. The matching limiting structure and the limiting structure jointly limit the conductive sliding body from sliding along the direction of the receiving cavity passing through the first end face of the conductive base body.
[0015] Preferably, the limiting structure is a boss protruding from the side wall of the conductive sliding body, and the limiting structure is a necking structure.
[0016] Preferably, the boss extends around the side wall of the conductive sliding body, and the boss is also slidably engaged with the receiving cavity.
[0017] Preferably, the boss has a resisting surface for the limiting structure to resist and limit, and the resisting surface is inclined relative to the sliding direction of the conductive sliding body.
[0018] To achieve the above-mentioned purpose, the present invention further provides a stable contact electrical connector, which includes the aforementioned spring probe. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1It is a three-dimensional diagram of a spring probe according to the first embodiment of the present utility model.
[0020] Figure 2 yes Figure 1 The spring probe is shown in an exploded perspective view.
[0021] Figure 3 yes Figure 2 Exploded three-dimensional diagram from another angle.
[0022] Figure 4 yes Figure 1 The spring probe is shown in a plan view viewed from the direction opposite to that indicated by arrow A.
[0023] Figure 5 It is along Figure 4 Internal view cut along the midline BB.
[0024] Figure 6 yes Figure 1 Plan view of the conductive slider in the spring probe shown.
[0025] Figure 7 yes Figure 6 The conductive slider is shown in a plan view viewed from left to right.
[0026] Figure 8 This is an internal diagram of a spring probe according to the second embodiment of the present invention. DETAILED DESCRIPTION
[0027] In order to explain the technical content and structural features of the present invention in detail, the following is a further description in conjunction with the embodiments and the accompanying drawings.
[0028] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The spring probe 100 of the first embodiment includes a spring 10, a conductive slider 20, and a conductive base 30 having a receiving cavity 31. The receiving cavity 31 extends through a first end surface 32 of the conductive base 30. Optionally, as an example, the receiving cavity 31 is a circular cavity to facilitate fabrication of the receiving cavity 31 on the conductive base 30. Obviously, the receiving cavity 31 may also have other shapes known in the art, depending on practical needs, and is not limited thereto.
[0029] The spring 10 and the conductive sliding body 20 are sequentially arranged in the receiving cavity 31 along the direction in which the receiving cavity 31 passes through the first end surface 32 of the conductive base body 30 (i.e., the direction indicated by the arrow A); obviously, according to actual needs, the spring 10 and the conductive sliding body 20 can also be sequentially arranged in the receiving cavity 31 along other directions; the spring 10 allows the conductive sliding body 20 to slide back and forth along the direction in which the receiving cavity 31 passes through the first end surface 32 of the conductive base body 30, so as to meet the need for the conductive sliding body 20 to automatically reset; optionally, Figure 2 and Figure 3 In the embodiment, the spring 10 is a coil spring, so that the expansion and contraction deformation of the spring 10 is more sensitive and smoother. Furthermore, the spring 10 includes a first spring segment 11, a second spring segment 12, and a third spring segment 13. The first spring segment 11 is installed in the mounting cavity 21 described below and is connected to the second spring segment 12. The second spring segment 12 is located outside the mounting cavity 21 and is connected to the third spring segment 13. The third spring segment 13 and the first spring segment 11 are arranged relative to each other with the second spring segment 12 as the center. That is, the second spring segment 12 is connected to the first spring segment 11 and the third spring segment 13 along the direction indicated by arrow A. The outer diameter of the second spring segment 12 is larger than the outer diameters of both the first spring segment 11 and the third spring segment 13. The end 131 of the third spring segment 13, which is away from the second spring segment 12, abuts against the end wall 311 of the receiving cavity 31.
[0030] The conductive slider 20 is exposed from the first end surface 32 of the conductive base 30 to meet the needs of electrical contact between the conductive slider 20 and external components. The conductive slider 20 is defined by an embedding cavity 21, which extends through the first end surface 22 of the conductive slider 20 facing the cavity end wall 311 of the receiving cavity 31. The first end surface 22 of the conductive slider 20 has an inclined surface 221 that is inclined relative to the sliding direction of the conductive slider 20 (see the direction indicated by arrow A and the opposite direction). The inclined surface 221 is used to press and engage with the second spring segment 12.
[0031] Therefore, during the process of the guide slider 20 sliding relative to the conductive seat 30 and retracting into the conductive seat 30, that is, during the process of the guide slider 20 sliding in the opposite direction indicated by arrow A, the guide slider 20 first compresses the first spring segment 11, the second spring segment 12, and the third spring segment 13 of the spring 10 by a predetermined distance (flexibly designed according to actual needs) and then presses against the second spring segment 12. The second spring segment 12 provides a lateral force to the conductive slider 20, thereby causing the conductive slider 20 to tilt relative to the conductive seat 30. This ensures that the conductive slider 20 and the conductive seat 30 are in close contact, ensuring that the spring probe 100 of the first embodiment has the advantages of good contact stability and strong current flow capacity. In addition, because the outer diameter of the third spring segment 13 is smaller than the outer diameter of the second spring segment 12, when the conductive slider 20 has the same sliding stroke, the length of the second spring segment 12 can be shortened, thereby preventing the conductive seat 30 from easily interfering with the overly long second spring segment 12. More specifically, as follows:
[0032] like Figure 6 As shown, as an example, the slope α of the inclined surface 221 relative to the sliding direction of the conductive slider 20 is 70 to 85 degrees, for example, 70 degrees, 72 degrees, 74 degrees, 76 degrees, 78 degrees, 80 degrees, 82 degrees, 84 degrees or 85 degrees, so that the lateral force generated by the inclined surface 221 pressing the second spring segment 12 during the process of the conductive slider 20 sliding relative to the conductive base 30 and retracting into the conductive base 30 is greater, thereby making the contact between the conductive slider 20 and the conductive base 30 closer; obviously, according to actual needs, the slope α of the inclined surface 221 relative to the sliding direction of the conductive slider 20 can also be other, and is not limited to this.
[0033] like Figure 3 and Figure 5 As shown, as an example, the conductive slider 20 is provided with an inclined structure 23 for expanding the cavity opening 211 of the embedding cavity 21. With the help of the design of the inclined structure 23, the first spring segment 11 of the spring 10 is facilitated to be installed and removed from the embedding cavity 21, and the inclined surface 221 is effectively prevented from interfering with the first spring segment 11 of the spring 10 when pressing the second spring segment 12.
[0034] like Figures 1 to 3 and Figure 5 As shown, as an example, a limiting structure 25 is provided on the side wall 24 of the conductive sliding body 20, and a corresponding limiting structure 33 facing the receiving cavity 31 is provided on the conductive base 30; the limiting structure 33 and the limiting structure 25 jointly limit the conductive sliding body 20 from sliding along the direction of the receiving cavity 31 passing through the first end surface 32 of the conductive base 30, thereby ensuring the reliability of the conductive sliding body 20. Figure 5 and Figure 6In the example, the limiting structure 25 is a boss protruding from the side wall 24 of the conductive slider 20, that is, the boss is also represented by the reference numeral 25, and the limiting structure 33 is a necking structure to facilitate the manufacturing and processing of the limiting structure 25 on the side wall 24 of the conductive slider 20, and the manufacturing and processing of the limiting structure 33 on the conductive base 30. More specifically, Figure 7 As an example, the boss 25 extends around the side wall 24 of the conductive sliding body 20, that is, the boss 25 is annular at this time; the boss 25 also slides with the receiving cavity 31, and the sliding direction of the conductive sliding body 20 relative to the conductive base 30 is ensured by the cooperation of the boss 25 and the receiving cavity 31; obviously, according to actual needs, the sliding direction of the conductive sliding body 20 can also be ensured by the cooperation of other structures of the conductive sliding body 20 and the receiving cavity 31, so it is not necessary to use Figure 7 For example, Figure 2 and Figures 4 to 7 As an example, the boss 25 has a stop surface 251 for the limiting structure 33 to stop and limit. Optionally, the stop surface 251 is inclined relative to the sliding direction of the conductive sliding body 20 to better meet the requirements of the boss 25 and the limiting structure 33 formed by the riveting process. It should be noted that when the boss 25 is annular, the stop surface 251 is also annular.
[0035] like Figures 1 to 3 and Figure 5 As shown in FIG. 1 , as an example, the conductive sliding body 20 is a needle shaft structure and the conductive base body 30 is a needle tube structure to simplify their structures. Obviously, according to actual needs, the conductive sliding body 20 and the conductive base body 30 can also be other structures well known in the art. Figures 1 to 3 and Figure 5 Limits shown.
[0036] See also Figure 8 The spring probe 100 of the second embodiment has substantially the same structure as the spring probe 100 of the first embodiment, with the only difference being the spring. A detailed description is as follows:
[0037] In the spring probe 100 ′ of the second embodiment, the spring 10 ′ does not include the third spring segment 13 . Accordingly, the end 121 of the second spring segment 12 away from the first spring segment 11 abuts against the end wall 311 of the receiving cavity 31 .
[0038] In the spring probe 100 of the first embodiment, since its spring 10 further includes a third spring segment 13, correspondingly, the end 131 of the third spring segment 13 away from the second spring segment 12 abuts against the cavity end wall 311 of the accommodating cavity 31; in addition, since the spring probe 100 of the first embodiment further includes a third spring segment 13, correspondingly, the length of the second spring segment 12 of the spring 10 is less than the length of the second spring segment 12 of the spring 10', the state is shown in FIG. Figure 5 and Figure 8 shown.
[0039] Apart from the above differences, the other two are the same, so I will not go into details here.
[0040] Finally, the present invention also provides a stable contact electrical connector, which includes the aforementioned spring probe 100 ( 100 ′).
[0041] Compared with the prior art, since the first end face 22 of the conductive slider 20 has an inclined surface 221 inclined relative to the sliding direction of the conductive slider 20, combined with the "spring 10 includes a connected first spring segment 11 and a second spring segment 12, the first spring segment 11 is inserted into the embedding cavity 21, the second spring segment 12 is located outside the embedding cavity 21 and is pressed by the inclined surface 221, and the outer diameter of the second spring segment 12 is larger than the outer diameter of the first spring segment 11", it is designed so that the second spring segment 12 of the spring 10 is pressed during the downward pressing process of the conductive slider 20 (i.e., shrinking inward), and the second spring segment 12 provides lateral force to the conductive slider 20, so that the conductive slider 20 and the conductive seat 30 are in close contact, thereby having strong contact stability and flow capacity between the conductive slider 20 and the conductive seat 30.
[0042] It should be noted that, although the guide sliding body 20 is described above as first compressing the first spring segment 11, the second spring segment 12 and the third spring segment 13 of the spring 10 by a preset distance (flexibly designed according to actual needs) and then pressing against the second spring segment 12, according to actual needs, the guide sliding body 20 can also be designed to press against the second spring segment 12 at the beginning of the retraction. Figure 5 and Figure 8 Limits shown.
[0043] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.
Claims
1. A spring probe, comprising a spring, a conductive sliding body, and a conductive base having a receiving cavity, wherein the receiving cavity extends through a first end surface of the conductive base, the spring and the conductive sliding body are sequentially disposed in the receiving cavity, and the spring allows the conductive sliding body to slide back and forth, characterized in that: The conductive sliding body is exposed outward from the first end face of the conductive base body, and an embedding cavity is formed on the conductive sliding body. The embedding cavity passes through the first end face of the conductive sliding body facing the cavity end wall of the accommodating cavity. The first end face of the conductive sliding body has an inclined surface inclined relative to the sliding direction of the conductive sliding body. The spring includes a first spring segment and a second spring segment connected to each other. The first spring segment is installed in the embedding cavity, and the second spring segment is located outside the embedding cavity and is pressed by the inclined surface. The outer diameter of the second spring segment is larger than the outer diameter of the first spring segment.
2. The spring probe according to claim 1, wherein: The end of the second spring segment away from the first end surface of the conductive sliding body abuts against the end wall of the receiving cavity.
3. The spring probe according to claim 1, wherein: The spring also includes a third spring segment connected to the second spring segment. The third spring segment and the first spring segment are arranged relative to each other with the second spring segment as the center. The outer diameter of the third spring segment is smaller than the outer diameter of the second spring segment. The end of the third spring segment away from the second spring segment abuts against the end wall of the accommodating cavity.
4. The spring probe according to claim 1, wherein: The slope of the inclined surface relative to the sliding direction of the conductive sliding body is 70 to 85 degrees.
5. The spring probe according to claim 1, wherein: The conductive sliding body is provided with an inclined structure for expanding the cavity opening of the embedding cavity.
6. The spring probe according to claim 1, wherein: A limiting structure is provided on the side wall of the conductive sliding body, and a matching limiting structure facing the receiving cavity is correspondingly provided on the conductive base body. The matching limiting structure and the limiting structure jointly limit the conductive sliding body from sliding along the direction of the receiving cavity passing through the first end surface of the conductive base body.
7. The spring probe according to claim 6, wherein: The limiting structure is a boss protruding from the side wall of the conductive sliding body, and the limiting structure is a necking structure.
8. The spring probe according to claim 7, wherein: The boss extends around the side wall of the conductive sliding body, and the boss is also slidably matched with the receiving cavity.
9. The spring probe according to claim 7 or 8, characterized in that: The boss has a resisting surface for the limiting structure to resist and limit, and the resisting surface is inclined relative to the sliding direction of the conductive sliding body.
10. A stable contact electrical connector, characterized in that: The spring probe comprises the spring probe according to any one of claims 1 to 9.