Soft contact conductive probe

Abstract

The utility model discloses a soft contact conductive probe, and belongs to the field of conductive probes. Comprising a needle rod, a needle cylinder and an outer spring, the needle rod movably penetrates through the needle cylinder, the needle rod is sleeved with the outer spring, one end of the outer spring abuts against or is connected with the needle cylinder, and the other end of the outer spring abuts against or is connected with the needle rod; one end of the needle rod is provided with a first electric connection part, the other end of the needle rod is provided with a second electric connection part, and the first electric connection part is provided with an annular spring used for being connected with an external conductive piece. Compared with the prior art, the contact type connection between the conductive probe and the external conductive piece is realized by arranging the annular spring, and the annular spring can be deformed and has a buffering effect, so that the annular spring is flexibly connected with the external conductive piece, and the conductive performance is more stable when the annular spring is used for conducting large current; and meanwhile, the flexible connection can also reduce the abrasion generated between the annular spring and the external conductive piece, so that the service life of the probe can be prolonged.

Description

Technical Field

[0001] This invention relates to conductive probes, and more particularly to a soft-contact conductive probe. Background Technology

[0002] Spring-loaded conductive probes, also known as Pogopins, are precision electronic connectors used in electronic products such as mobile phones, portable electronic devices, communications, automobiles, medical devices, and aerospace.

[0003] Existing conductive probes typically have two connection points to connect with external conductive components to enable current flow. However, this connection is usually a hard connection, with no buffering at the contact point, making the connection unstable. When used to conduct large currents, it can lead to unstable conductivity. At the same time, hard contacts are more prone to wear, thus reducing the probe's lifespan. Utility Model Content

[0004] To address the aforementioned problems, the primary objective of this invention is to provide a soft-contact conductive probe that can improve the stability of its conductivity.

[0005] Another objective of this invention is to provide a soft-contact conductive probe that can reduce wear and extend the probe's service life.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] This utility model provides a soft contact conductive probe, comprising: a needle rod, a syringe barrel, and an outer spring. The needle rod movably passes through the syringe barrel, and the outer spring is sleeved on the outside of the needle rod, with one end of the outer spring abutting or connected to the syringe barrel and the other end abutting or connected to the needle rod. One end of the needle rod is provided with a first electrical connection part, and the other end of the needle rod is provided with a second electrical connection part. The first electrical connection part is provided with a ring spring for connecting an external conductive component.

[0008] Furthermore, the end of the first electrical connection portion is provided with a mounting groove, and the annular spring is disposed in the mounting groove.

[0009] Furthermore, the mounting groove has an opening on the side opposite to the first electrical connection portion, and one side of the annular spring is exposed outside the mounting groove through the opening.

[0010] Furthermore, an inverted trapezoidal limiting boss is provided in the middle of the mounting groove. The side of the limiting boss and the bottom wall of the mounting groove form an angle for limiting the annular spring. The angle is less than 90 degrees.

[0011] Furthermore, the needle bar includes a bar body and a bar cap, the bar body and the bar cap are fixedly connected, the first electrical connection part is disposed on the bar cap, and the second electrical connection part is disposed at the end of the bar body away from the bar cap.

[0012] Furthermore, the rod moves up and down sequentially through the outer spring and the syringe, with one end of the outer spring abutting or connecting to one end of the syringe, and the other end abutting or connecting to the rod cap.

[0013] Furthermore, the outer wall of the second electrical connection portion has a first external thread, on which two or more first nuts for clamping the conductive wire are threadedly connected.

[0014] Furthermore, the outer wall of the syringe is provided with a second external thread, and a second nut with a fixing function is threadedly connected to the second external thread.

[0015] The working principle of the conductive probe of this utility model is as follows: the annular spring at the upper end of the needle rod serves as one of the conductive poles and is in contact with external conductive components such as the battery cell and conductive sheet; the second electrical connection part at the lower end of the needle rod serves as the other conductive pole and is fixedly connected to external conductive components such as the battery cell and conductive sheet; the current is conducted sequentially through the annular spring, the needle rod, and the second electrical connection part.

[0016] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting a ring spring to achieve contact connection between the conductive probe and the external conductive component, the ring spring can be deformed and has a buffering effect, making the connection between the ring spring and the external conductive component soft. When used to conduct large currents, the conductivity is more stable. At the same time, the soft connection can also reduce the wear between the ring spring and the external conductive component, thereby improving the service life of the probe. Attached Figure Description

[0017] Figure 1 This is an isometric view of a soft-contact conductive probe.

[0018] Figure 2 This is an exploded view of a soft-contact conductive probe.

[0019] Figure 3 This is a cross-sectional view of a soft-contact conductive probe.

[0020] In the diagram: 1. Needle bar; 11. Bar body; 12. Bar cap; 2. Syringe; 21. Second external thread; 3. External spring; 4. First electrical connection part; 41. Mounting groove; 5. Second electrical connection part; 51. First external thread; 6. Ring spring; 7. Limiting protrusion; 8. Angle; 9. First nut; 10. Second nut. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] To achieve the above objectives, the technical solution of this utility model is as follows:

[0023] See Figure 1-3 As shown, this embodiment provides a soft contact conductive probe, including: a needle rod 1, a syringe 2, and an outer spring 3. The needle rod 1 movably passes through the syringe 2, and the outer spring 3 is sleeved on the outside of the needle rod 1. One end of the outer spring 3 abuts or connects to the syringe 2, and the other end abuts or connects to the needle rod 1. One end of the needle rod 1 is provided with a first electrical connection part 4, and the other end of the needle rod 1 is provided with a second electrical connection part 5. The first electrical connection part 4 is provided with a ring spring 6 for connecting to an external conductive component.

[0024] In this embodiment, the first electrical connection part 4 and the second electrical connection part 5 are used to connect the positive and negative conductive poles, respectively. The first electrical connection part 4 is connected to the external conductive component through a ring spring 6. Since the ring spring 6 can deform and has a buffering effect, the connection between the ring spring 6 and the external conductive component is flexible. When used to conduct large currents such as 50A, 75A, 140A, and 230A, the conductivity is more stable. At the same time, the flexible connection can also reduce the wear between the ring spring 6 and the external conductive component, thereby improving the service life of the probe.

[0025] Furthermore, the end of the first electrical connection part 4 is provided with a mounting groove 41, and the annular spring 6 is disposed in the mounting groove 41.

[0026] Furthermore, the mounting groove 41 has an opening on the side opposite to the first electrical connection part 4, and one side of the annular spring 6 is exposed outside the mounting groove 41 through the opening. This allows the annular spring 6 to make better contact with external conductive parts.

[0027] Furthermore, an inverted trapezoidal limiting boss 7 is provided in the middle of the mounting groove 41. The side of the limiting boss 7 and the bottom wall of the mounting groove 41 form an angle 8 for limiting the annular spring 6, and the angle 8 is less than 90 degrees. Under normal circumstances, the annular spring 6 can elastically contract and wrap around the side of the limiting boss 7, and the angle 8 limits the annular spring 6, thereby preventing the annular spring 6 from coming out of the mounting groove 41. When compressed, the annular spring 6 can also elastically deform and expand to the side away from the angle 8, thereby realizing a soft connection with the external conductive component.

[0028] Furthermore, the needle bar 1 includes a bar body 11 and a bar cap 12. The bar body 11 and the bar cap 12 are fixedly connected. A first electrical connection part 4 is disposed on the bar cap 12, and a second electrical connection part 5 is disposed at the end of the bar body 11 away from the bar cap 12.

[0029] Furthermore, the rod 11 moves up and down sequentially through the outer spring 3 and the syringe 2. One end of the outer spring 3 abuts against or connects to one end of the syringe 2, and the other end abuts against or connects to the rod cap 12.

[0030] Furthermore, the outer wall of the second electrical connection part 5 has a first external thread 51, on which two or more first nuts 9 for clamping the conductive wire are threadedly connected. During conduction, the conductive wire connected to the second electrical connection part 5 can be clamped and fixed by the two first nuts 9, thereby improving the stability of the conductive structure.

[0031] Furthermore, a second external thread 21 is provided on the outer wall of the syringe 2, and a second nut 10 with a fixing function is threadedly connected to the second external thread 21. The second nut 10 is fixed to the external device, thereby realizing the fixation of the conductive probe. The second nut 10 can move relative to the thread of the syringe 2, and the vertical position of the conductive probe can also be adjusted.

[0032] The working principle of the conductive probe in this embodiment is as follows: the annular spring 6 at the upper end of the needle rod 1 serves as one of the conductive poles and is connected in contact with external conductive components such as the battery cell and conductive sheet; the second electrical connection part 5 at the lower end of the needle rod 1 serves as the other conductive pole and is fixedly connected to external conductive components such as the battery cell and conductive sheet; the current is conducted sequentially through the annular spring 6, the needle rod 1, and the second electrical connection part 5.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A soft contact conductive probe, characterized by, The utility model relates to a needle rod, needle cylinder, outer spring, the needle rod activity penetrates the needle cylinder, the outer spring is set in needle rod outside, and one end of outer spring and needle cylinder resist or connect, the other end and needle rod resist or connect, one end of the needle rod is provided with first electric connection part, the other end of needle rod is provided with second electric connection part, and the first electric connection part is provided with annular spring for connecting external conductive part. The end of the first electric connection part is provided with a mounting groove, and the annular spring is arranged in the mounting groove.

2. A soft contact conductive probe as claimed in claim 1, wherein, The side of the mounting groove away from the first electric connection part has an opening, and one side of the annular spring is exposed outside the mounting groove through the opening.

3. A soft contact conductive probe as claimed in claim 2, wherein, The middle part of the mounting groove is provided with a reverse trapezoidal limiting boss, the side surface of the limiting boss and the bottom wall of the mounting groove form an included angle for limiting the annular spring, and the angle of the included angle is less than 90 degrees.

4. A soft contact conductive probe as claimed in claim 2 or 3, wherein, The needle rod comprises a rod body and a rod cap, the rod body is fixedly connected with the rod cap, the first electric connection part is arranged on the rod cap, and the second electric connection part is arranged on one end of the rod body away from the rod cap.

5. A soft contact conductive probe as claimed in claim 1, wherein, The rod body penetrates the outer spring and the needle cylinder in sequence, one end of the outer spring is abutted or connected with one end of the needle cylinder, and the other end is abutted or connected with the rod cap.

6. A soft contact conductive probe as claimed in claim 5, wherein, The outer wall of the second electric connection part is provided with a first external thread, and the first external thread is threadedly connected with two or more first nuts for clamping the conductive wire.

7. A soft contact conductive probe as defined in claim 1, wherein, The outer wall of the needle cylinder is provided with a second external thread, and the second external thread is threadedly connected with a second nut with a fixing function.

8. A soft contact conductive probe as claimed in claim 1, wherein, ​

Images