CN217305261U - Probe for electrical property test of PCB - Google Patents
Probe for electrical property test of PCB Download PDFInfo
- Publication number
- CN217305261U CN217305261U CN202122400606.2U CN202122400606U CN217305261U CN 217305261 U CN217305261 U CN 217305261U CN 202122400606 U CN202122400606 U CN 202122400606U CN 217305261 U CN217305261 U CN 217305261U
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- Prior art keywords
- needle
- probe
- cap
- pcb
- pipe body
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 239000000523 sample Substances 0.000 title claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a probe for PCB circuit board electrical property test, which comprises a tube body, a needle body, a spring and an end cap; the tube body is a tubular elongated tubular part supported by a metal conductor; the needle body is a slender cylindrical rod-shaped part supported by a metal conductor; the needle body and the tube body are of a coaxial structure; the needle body comprises a first end part and a second end part; a cylindrical cavity is arranged in the pipe body; the tube body comprises a first opening part and a second opening part; the second end is inserted into the tube body from the first opening part so as to place the part of the needle body close to the second end in the cylindrical cavity; the end cap is arranged at the second opening part in a sealing way and used for sealing the second opening part; the spring is arranged in the cylindrical cavity; the bottom end of the spring is fixed with the second end of the needle body, and the other end of the spring is fixed with the inner wall of the tube body close to the end cap. The utility model discloses be convenient for processing and assembly.
Description
Technical Field
The utility model relates to an electronic circuit technical field especially relates to a probe for PCB circuit board electrical property test.
Background
The probe is a tool for testing the electrical property of the PCB and is used for a testing jig or other testing equipment, usually, the surface of the probe is plated with gold, one end of the probe is abutted against and electrically connected with a testing point of the PCB, such as a copper leakage position, and the other end of the probe is electrically connected with the testing jig or a testing instrument, so that the electrical connection between the testing point and the testing jig or the testing instrument is realized, and the electrical property test of the PCB is realized. The probe in the prior art has an integral structure at the tail end, so that the probe is inconvenient to assemble and maintain.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a probe for PCB circuit board electrical property test.
The utility model provides a probe for PCB circuit board electrical property test, which comprises a tube body (1), a needle body (2), a spring (3) and an end cap (4); the tube body (1) is a tubular elongated tubular part supported by a metal conductor; the needle body (2) is a slender cylindrical rod-shaped part supported by a metal conductor; the needle body (2) and the tube body (1) are of a coaxial structure; the needle body (2) comprises a first end (21) and a second end (22); a cylindrical cavity is arranged in the pipe body (1); the tube body (1) comprises a first opening part and a second opening part; the second end (22) is inserted into the tube (1) from the first opening part so as to place the part of the needle body (2) close to the second end (22) in the cylindrical cavity; the end cap (4) is arranged at the second opening part in a sealing way and used for sealing the second opening part; the spring (3) is arranged in the cylindrical cavity; the bottom end of the spring (3) is fixed with the second end part (22) of the needle body (2) and the other end of the spring is fixed with the inner wall of the tube body (1) close to the end cap (4).
The end cap (4) comprises a first cap structure (41) and a second cap structure (42); the first cap structure (41) and the second cap structure (42) are both cylindrical; the diameter of the first cap structure (41) is consistent with the outer diameter of the pipe body (1); the diameter of the second cap structure (42) is consistent with the inner diameter of the pipe body (1); the first cap structure (41) and the second cap structure (42) are coaxial and integrated. The outer wall of the second cap body is provided with a first thread; and a second thread matched with the first thread is also arranged on the inner wall of the pipe body (1) close to the second opening part. The first end portion (21) is provided with a needle head (23), and the needle head (23) and the needle body (2) are of an integral structure. The needle head (23) is conical or circular arc. The top end of the needle (23) is provided with a 60-degree notch (24). The utility model provides a probe for PCB circuit board electrical property test, still include first spacing ring (51); the outer diameter of the first limiting ring (51) is consistent with that of the pipe body (1); the inner diameter of the first limiting ring (51) is smaller than that of the pipe body (1); the first limiting ring (51) is arranged at a first opening part of the pipe body (1); the first limiting ring (51) and the pipe body (1) are fixed or the first limiting ring (51) and the pipe body (1) are of an integral structure. The utility model provides a probe for PCB circuit board electrical property test, still include second spacing ring (52); the second limit ring (52) is arranged at the second end part (22) of the needle body (2); the outer diameter of the second limiting ring (52) is consistent with the inner diameter of the pipe body (1).
The utility model provides a probe for PCB circuit board electrical test sets up the tip of body into the structure that can open and shut, is convenient for process and assembly, is convenient for inspect the inner chamber part of body in the use and repairs and maintain to reduce the production technology degree of difficulty of probe, reduce the cost of manufacture, increase the life of probe.
Drawings
Fig. 1 is a schematic view of an overall structure of a probe for testing electrical properties of a PCB provided in an embodiment of the present invention;
fig. 2 is a schematic view illustrating an assembly of a probe for electrical testing of a PCB according to an embodiment of the present invention, wherein a needle head is conical;
FIG. 3 is a perspective view of a needle body with a circular arc-shaped needle tip;
FIG. 4 is a perspective view of a needle body with a notch;
FIG. 5 is a plan view of a conical needle body;
FIG. 6 is a plan view of a needle body with a circular arc-shaped needle tip;
FIG. 7 is a plan view of a needle body provided with a notch;
FIG. 8 is a schematic view of the first stop collar assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment provides a probe for testing the electrical property of a PCB (printed circuit board), which comprises a tube body 1, a pin body 2, a spring 3 and an end cap 4; the tube body 1 is a tubular elongated tubular member supported by a metal conductor; the needle body 2 is a slender cylindrical rod-shaped part supported by a metal conductor; the needle body 2 and the tube body 1 are of a coaxial structure; the needle body 2 comprises a first end 21 and a second end 22; a cylindrical cavity is arranged in the pipe body 1; the pipe body 1 includes a first opening and a second opening; the second end 22 is inserted into the tube 1 from the first opening so as to place the portion of the needle body 2 close to the second end 22 inside the cylindrical cavity; the end cap 4 is arranged at the second opening part in a sealing way; the spring 3 is arranged in the cylindrical cavity; the bottom end of the spring 3 is fixed with the second end 22 of the needle body 2 and the other end is fixed with the inner wall of the tube body 1 close to the end cap 4. It can be understood by those skilled in the art that the probe for PCB electrical testing provided in the present embodiment is provided with an end cap 4, the second opening portion of the tube body 1 can be sealed by the end cap 4, and the end cap 4 can also be detached to open the second opening portion, so as to observe and maintain the inside of the tube body 1.
The end cap 4 comprises a first cap structure 41 and a second cap structure 42; the first cap structure 41 and the second cap structure 42 are both cylindrical; the diameter of the first cap structure 41 is consistent with the outer diameter of the pipe body 1; the diameter of the second cap structure 42 corresponds to the inner diameter of the pipe body 1; the first cap 41 and the second cap 42 are coaxial and integral.
The outer wall of the second cap body is provided with a first thread; and a second thread matched with the first thread is also arranged on the inner wall of the pipe body 1 close to the second opening part. It will be understood by those skilled in the art that the cap may be screwed into the pipe body 1 to fix the cap to the pipe body 1.
The first end portion 21 is provided with a needle 23, and the needle 23 and the needle body 2 are of an integral structure.
The needle 23 is conical or circular arc shaped.
The top end of the needle 23 is provided with a 60-degree notch 24.
As will be understood by those skilled in the art, the conical or circular-arc-shaped needle 23 is easier to manufacture, and the 60-degree notch 24 is formed at the top end of the needle 23, so that the needle 23 can be more matched with a test point of a PCB (printed circuit board), and when the needle 23 is contacted with the test point, the connection performance is better, and the test is more stable and accurate.
The probe for testing the electrical property of the PCB circuit board provided by the embodiment further comprises a first limiting ring 51; the outer diameter of the first limiting ring 51 is consistent with that of the pipe body 1; the inner diameter of the first limiting ring 51 is smaller than that of the pipe body 1; the first stopper ring 51 is provided at a first opening of the pipe body 1; the first limiting ring 51 and the pipe body 1 are fixed or the first limiting ring 51 and the pipe body 1 are of an integral structure.
The probe for testing the electrical property of the PCB provided in this embodiment further includes a second limiting ring 52; the second limit ring 52 is arranged at the second end 22 of the needle body 2; the outer diameter of the second limit ring 52 is consistent with the inner diameter of the pipe body 1. It can be understood by those skilled in the art that the first position-limiting ring 51 and the second position-limiting ring 52 can ensure that the second end 22 of the pin body 2 cannot slide out of the cylindrical cavity of the tube body 1, thereby ensuring the structural stability of the probe for electrical testing of the PCB provided in this embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A probe for testing the electrical property of a PCB is characterized by comprising a tube body (1), a needle body (2), a spring (3) and an end cap (4); the tube body (1) is a tubular elongated tubular part supported by a metal conductor; the needle body (2) is a slender cylindrical rod-shaped part supported by a metal conductor; the needle body (2) and the tube body (1) are of a coaxial structure; the needle body (2) comprises a first end (21) and a second end (22); a cylindrical cavity is arranged in the pipe body (1); the tube body (1) comprises a first opening part and a second opening part; the second end part (22) is inserted into the tube body (1) from the first opening part so as to place the part of the needle body (2) close to the second end part (22) in the cylindrical cavity; the end cap (4) is used for sealing the second opening part and sealing the second opening part; the spring (3) is arranged in the cylindrical cavity; the bottom end of the spring (3) is fixed with the second end part (22) of the needle body (2) and the other end of the spring is fixed with the inner wall of the tube body (1) close to the end cap (4).
2. The probe for electrical testing of PCB circuit boards according to claim 1, wherein the end cap (4) comprises a first cap structure (41) and a second cap structure (42); the first cap structure (41) and the second cap structure (42) are both cylindrical; the diameter of the first cap structure (41) is consistent with the outer diameter of the pipe body (1); the diameter of the second cap structure (42) is consistent with the inner diameter of the pipe body (1); the first cap structure (41) and the second cap structure (42) are coaxial and integrated.
3. The probe for electrical testing of a PCB of claim 2, wherein the second cap has a first thread on an outer wall thereof; the inner wall of the pipe body (1) close to the second opening portion is also provided with second threads matched with the first threads.
4. The probe for PCB electrical test of claim 3, wherein the first end portion (21) is provided with a needle head (23), and the needle head (23) and the needle body (2) are of an integral structure.
5. The probe for electrical test of PCB circuit board according to claim 4, wherein the needle head (23) is conical or circular arc.
6. The probe for PCB electrical test of claim 5, wherein the tip of the needle (23) is provided with a 60-degree notch (24).
7. The probe for PCB electrical test of claim 6, further comprising a first stop collar (51); the outer diameter of the first limiting ring (51) is consistent with that of the pipe body (1); the inner diameter of the first limiting ring (51) is smaller than that of the pipe body (1); the first limiting ring (51) is arranged at a first opening part of the pipe body (1); the first limiting ring (51) and the pipe body (1) are fixed or the first limiting ring (51) and the pipe body (1) are of an integral structure.
8. The probe for PCB electrical testing of claim 7, further comprising a second retaining ring (52); the second limit ring (52) is arranged at the second end part (22) of the needle body (2); the outer diameter of the second limiting ring (52) is consistent with the inner diameter of the pipe body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122400606.2U CN217305261U (en) | 2021-10-01 | 2021-10-01 | Probe for electrical property test of PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122400606.2U CN217305261U (en) | 2021-10-01 | 2021-10-01 | Probe for electrical property test of PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217305261U true CN217305261U (en) | 2022-08-26 |
Family
ID=82912860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122400606.2U Active CN217305261U (en) | 2021-10-01 | 2021-10-01 | Probe for electrical property test of PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217305261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115856371A (en) * | 2022-12-13 | 2023-03-28 | 渭南木王智能科技股份有限公司 | Thread-mounted detachable semiconductor test probe |
-
2021
- 2021-10-01 CN CN202122400606.2U patent/CN217305261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115856371A (en) * | 2022-12-13 | 2023-03-28 | 渭南木王智能科技股份有限公司 | Thread-mounted detachable semiconductor test probe |
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