CN211789655U - Corrosion-resistant spring probe - Google Patents
Corrosion-resistant spring probe Download PDFInfo
- Publication number
- CN211789655U CN211789655U CN201922394961.6U CN201922394961U CN211789655U CN 211789655 U CN211789655 U CN 211789655U CN 201922394961 U CN201922394961 U CN 201922394961U CN 211789655 U CN211789655 U CN 211789655U
- Authority
- CN
- China
- Prior art keywords
- needle
- spring
- needle tube
- tube
- accommodating cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Leads Or Probes (AREA)
Abstract
The utility model provides a corrosion-resistant spring probe, including needle axle, needle tubing and spring, the needle tubing has the holding cavity, the needle axle has needle end and backshank end, the backshank end is located in the holding cavity, the needle end stretches out the outside setting of holding cavity, the spring is located in the holding cavity, just the one end of spring is connected the backshank end, the other end of spring is connected holding cavity inner wall, the needle tubing with one of them person of needle axle is nickel base alloy or stainless steel material, the needle tubing with another person wherein of needle axle is copper alloy material. This spring probe can promote corrosion resisting property, promotes the electrolysis performance simultaneously, satisfies the heavy current user demand that charges, avoids leading to the bad phenomenon of electrolysis to appear in the connector charging process because of needle tubing and needle shaft are easily corroded, and the life of multiplicable spring probe, reduce cost.
Description
Technical Field
The utility model relates to a spring probe technical field especially relates to a corrosion-resistant spring probe.
Background
The spring probe, also called Pogo pin, can also be called probe, thimble, is a precision connector that is applied to electronic products such as cell-phone, computer, intelligent wrist-watch, and at present the spring probe mainly comprises three parts, is needle axle, coil spring and needle tubing respectively, and needle axle and needle tubing are riveted as an organic whole, and the spring is acceptd in the needle tubing and extrudes between needle axle and needle tubing for the needle axle can axially stretch out and draw back. Because current needle axle, needle tubing adopt the brass material, its corrosion resistance is relatively poor, therefore when being applied to intelligent wearing equipment, often lead to corroding because of sweat or other substances, make the connector take place the bad phenomenon of electrolysis in the charging process.
Therefore, it is desirable to provide a corrosion resistant spring probe to address the above-mentioned deficiencies.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a corrosion-resistant spring probe has good corrosion resisting property, avoids leading to the connector bad phenomenon of electrolysis to appear in the charging process because of needle tubing and needle shaft are easily corroded, and multiplicable spring probe's life, reduce cost.
In order to achieve the above object, the utility model provides a corrosion-resistant spring probe, including needle axle, needle tubing and spring, the needle tubing has the holding cavity, the needle axle has needle end and backshank end, the backshank end is located in the holding cavity, the needle end is stretched out the outside setting of holding cavity, the spring is located in the holding cavity, just the one end of spring is connected the backshank end, the other end of spring is connected holding cavity inner wall, the needle tubing with one of them is nickel base alloy or stainless steel material for the needle axle, the needle tubing with wherein another is copper alloy material for the needle axle.
Compared with the prior art, the corrosion-resistant spring probe of this application adopts three-piece structure, simple structure, the needle tubing with one of them of needle shaft is nickel base alloy or stainless steel material, and nickel base alloy or stainless steel material have good corrosion resisting property, the needle tubing with one of them another of needle shaft is copper alloy material, and copper alloy material has good electric conductive property, under the mutual collocation of two kinds of materials, makes spring probe not only have good electric conductive property, promotes the electrolytic property when promoting corrosion resisting property, satisfies the heavy current user demand that charges, avoids leading to the bad phenomenon of electrolysis to appear in the charging process because of needle tubing and needle shaft are easily corroded, and multiplicable spring probe's life, reduce cost.
Preferably, the nickel content in the nickel-based alloy is more than or equal to 30 wt.%.
Preferably, one of the needle tube and the needle shaft is made of a nickel-based alloy material, and the other of the needle tube and the needle shaft is made of a copper alloy material.
Correspondingly, the application also provides a corrosion-resistant spring probe, including needle axle, needle tubing and spring, the needle tubing includes first needle tubing and the second needle tubing of coaxial setting, just the pipe diameter of first needle tubing is less than the pipe diameter of second needle tubing, first needle tubing has first holding cavity, the second needle tubing has second holding cavity, first needle tubing suit in the second needle tubing, first holding cavity with second holding cavity communicates with each other and forms the holding cavity, the needle axle has syringe needle end and needle tail end, the needle tail end is located in the holding cavity, the syringe needle end is followed one side of first needle tubing direction and is stretched out the holding cavity is outside, the spring is located in the holding cavity, just the one end of spring is connected the needle tail end, the other end of spring is connected holding cavity bottom, one of them is nickel base alloy or stainless steel material for the needle tubing with the needle axle, the other one of the needle tube and the needle shaft is made of copper alloy material.
Preferably, the first needle tube is made of nickel-based alloy or stainless steel, the second needle tube is made of nickel-based alloy or stainless steel, and the needle shaft is made of copper alloy.
Preferably, the first needle tube is made of copper alloy, the second needle tube is made of nickel-based alloy or stainless steel, and the needle shaft is made of copper alloy.
Preferably, the first needle tube and the second needle tube are made of nickel-based alloy, stainless steel or copper alloy materials, and the needle shaft is made of nickel-based alloy or stainless steel materials.
Preferably, the nickel content in the nickel-based alloy is more than or equal to 30 wt.%.
Preferably, a groove is formed in one side of the needle shaft facing the accommodating cavity, one end of the spring extends into the groove and is connected with the groove wall of the groove, and the other end of the spring is connected with the bottom of the second accommodating cavity.
Preferably, the needle shaft has a limiting part located at a joint of the needle head end and the needle tail end.
The corrosion-resistant spring probe adopts a four-piece structure, and the needle tube adopts a separated structure design. The needle tubing with one of them is nickel base alloy or stainless steel material of needle axle, and nickel base alloy or stainless steel material have good corrosion resisting property, the needle tubing with one of them another of needle axle is the copper alloy material, and the copper alloy material has good electric conductive property, promotes the electrolytic property when promoting corrosion resisting property, satisfies the heavy current and charges the user demand, avoids appearing the bad phenomenon of electrolysis because of needle tubing and needle axle easily corrode and lead to the connector in the charging process, and the life of multiplicable spring probe, reduce cost.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the corrosion-resistant spring probe of the present invention.
Fig. 2 is a schematic structural view of another embodiment of the corrosion-resistant spring probe of the present invention.
Detailed Description
To explain technical solutions, structural features, and achieved technical effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with specific embodiments.
Referring to fig. 1, the corrosion-resistant spring probe 10 of the present application includes a needle shaft 11, a needle tube 13 and a spring 15, the needle tube 13 has an accommodating cavity 131, the needle shaft 11 has a needle end 111 and a needle tail end 113, the needle tail end 113 is disposed in the accommodating cavity 131, the needle end 111 extends out of the accommodating cavity 131, the spring 15 is disposed in the accommodating cavity 131, one end of the spring 15 is connected to the needle tail end 113, and the other end of the spring 15 is connected to an inner wall of the accommodating cavity 131, that is, the spring 15 is accommodated in the needle tube 13 and is pressed between the needle shaft 11 and the needle tube 13, so that the needle shaft 11 can axially extend and retract. One of the needle tube 13 and the needle shaft 11 is made of a nickel-based alloy or stainless steel, and the other of the needle tube 13 and the needle shaft 11 is made of a copper alloy. For example, the needle tube 13 is made of a nickel-based alloy or stainless steel material, and the needle shaft 11 is made of a copper alloy material. Of course, the needle shaft 11 may be made of nickel-based alloy or stainless steel, and the needle tube 13 may be made of copper alloy. Further, the nickel content in the nickel-based alloy is more than or equal to 30 wt.%.
To further illustrate the corrosion resistance of the spring probe 10 of the present application, testing was performed by an artificial sweat electrolysis test.
In a specific first embodiment, the needle tube 13 is made of stainless steel, the diameter of the needle tube 13 is 1.35mm, and the needle shaft 11 is made of copper alloy.
In a specific second embodiment, the needle tube 13 is made of a nickel-based alloy, the content of nickel in the nickel-based alloy is more than or equal to 30 wt.%, the diameter of the prepared needle tube 13 is 1.35mm, and the needle shaft 11 is made of a copper alloy material.
In the control group, the needle tube 13 was made of a copper alloy material, the diameter of the prepared needle tube 13 was 1.35mm, and the needle shaft 11 was made of a copper alloy material.
The test methods and results are as follows:
1. the artificial sweat is prepared according to ISO-3160.
2. Three samples of the first example, the second example and the control group, which were processed to a uniform size, were prepared, bound with copper wires, and painted with a paint at positions other than the front surface.
3. The sample was placed in artificial sweat and the leads connected to the test equipment.
4. And setting a current stabilization of 1mA for electrifying. The product was removed every 1 minute to observe appearance until corrosion occurred in the product, and the test was terminated.
Sweat electrolysis test results are shown in table 1:
TABLE 1 sweat Electrolysis test results
As can be seen from table 1, in the first embodiment, the needle tube 13 is made of a stainless steel material, the needle shaft 11 is made of a copper alloy material, and the sweat electrolysis test is performed for 2 minutes; in the second embodiment, the needle tube 13 is made of nickel-based alloy, the nickel content in the nickel-based alloy is more than or equal to 30 wt.%, the needle shaft 11 is made of copper alloy, and sweat is subjected to electrolytic test for corrosion for 4 minutes; in the comparison group, the needle tube 13 is made of copper alloy material, the needle shaft 11 is made of copper alloy material, and the corrosion can be realized within 1 minute in sweat electrolysis test. Therefore, the corrosion resistance time of the needle tube 13 made of stainless steel is 2 times longer than that of the needle tube 13 made of copper alloy; and needle tubing 13 adopts the preparation of nickel base alloy material, nickel content is more than or equal to 30 wt.% in the nickel base alloy, adopt the corrosion-resistant time that copper alloy material preparation is higher than 3 times than needle tubing 13, so, spring probe 10 of this application promotes the electrolytic property when promoting corrosion resistance, satisfy heavy current charging user demand, and avoid leading to the bad phenomenon of electrolysis to appear in the charging process because of needle tubing 13 and needle shaft 11 are easily corroded, and can increase spring probe 10's life, reduce cost.
It can be seen that, the corrosion-resistant spring probe 10 in this embodiment adopts a three-piece structure, the structure is simple, one of the needle tube 13 and the needle shaft 11 is made of nickel-based alloy or stainless steel, the nickel-based alloy or stainless steel has good corrosion resistance, the other of the needle tube 13 and the needle shaft 11 is made of copper alloy, the copper alloy has good conductivity, the corrosion resistance is improved, the electrolytic performance is improved, the use requirement of high-current charging is met, the phenomenon of poor electrolysis of the connector in the charging process due to the fact that the needle tube 13 and the needle shaft 11 are prone to corrosion is avoided, the service life of the spring probe 10 can be prolonged, and the cost is reduced.
Referring to fig. 2, the present application further provides another embodiment of a corrosion-resistant spring probe 20, which includes a needle shaft 21, a needle tube 23 and a spring 25, wherein the needle tube 23 includes a first needle tube 231 and a second needle tube 233 coaxially disposed, a diameter of the first needle tube 231 is smaller than a diameter of the second needle tube 233, the first needle tube 231 has a first accommodating cavity 232, the second needle tube 233 has a second accommodating cavity 234, the first needle tube 231 is sleeved in the second needle tube 233, the first accommodating cavity 232 is communicated with the second accommodating cavity 234 to form an accommodating cavity 235, the needle shaft 21 has a needle end 211 and a needle tail end 213, the needle tail end 213 is disposed in the accommodating cavity 235, one side of the needle end 211 along a direction of the first needle tube 231 extends out of the accommodating cavity 235, the spring 25 is disposed in the accommodating cavity 235, one end of the spring 25 is connected to the needle tail end 213, the other end of the spring 25 is connected to a bottom of the accommodating cavity 235, one of the needle tube 23 and the needle shaft 21 is made of, the other of the needle tube 23 and the needle shaft 21 is made of a copper alloy material. Further, the nickel content in the nickel-based alloy is more than or equal to 30 wt.%.
The first needle tube 231 is made of nickel-based alloy or stainless steel, the second needle tube 233 is made of nickel-based alloy or stainless steel, and the needle shaft 21 is made of copper alloy. For example, the first needle tube 231 is made of a nickel-based alloy, the second needle tube 233 is made of a nickel-based alloy, and the needle shaft 21 is made of a copper alloy material, but not limited thereto. Needle tubing 23 adopts the design of disconnect-type structure, and first needle tubing 231 and second needle tubing 233 are nickel base alloy, and nickel base alloy has good corrosion resisting property, and needle shaft 21 is the copper alloy material, and the copper alloy material has good electric conductive property, and under the mutual collocation of two kinds of materials, messenger's spring probe not only has good electric conductive property, promotes the electrolytic property when promoting corrosion resisting property, satisfies the heavy current user demand that charges.
The first needle tube 231 is made of copper alloy, the second needle tube 233 is made of nickel-based alloy or stainless steel, and the needle shaft 21 is made of copper alloy. For example, the first needle tube 231 is made of copper alloy, the second needle tube 233 is made of nickel-based alloy, and the needle shaft 21 is made of copper alloy, but not limited thereto. The needle tube 23 adopts a separated structure design, the first needle tube 231 is made of a copper alloy material, the copper alloy material has good conductivity, the second needle tube 233 is made of a nickel-based alloy material, the nickel-based alloy has good corrosion resistance, and the needle shaft 21 is made of the copper alloy material, so that the corrosion resistance is good, the electrolytic performance is improved, and the use requirement of high-current charging is met.
The first needle tube 231 and the second needle tube 233 are made of nickel-based alloy, stainless steel or copper alloy, and the needle shaft 21 is made of nickel-based alloy or stainless steel. For example, the needle tube 23 is designed to have a separated structure, the first needle tube 231 is made of a nickel-based alloy, the needle shaft 21 is made of a nickel-based alloy, the nickel-based alloy has good corrosion resistance, the second needle tube 233 is made of a copper alloy, the copper alloy has good conductivity, the corrosion resistance is good, the electrolytic performance is improved, and the use requirement of high-current charging is met.
Referring to fig. 2, a groove 215 is formed on one side of the needle shaft 21 facing the accommodating cavity 235, one end of the spring 25 extends into the groove 215 and connects with a groove wall of the groove 215, and the other end of the spring 25 connects with a bottom of the second accommodating cavity 234, so that the material is saved and the elasticity of the spring 25 is more stable. Further, the needle end 211 of the needle shaft 21 can extend out of the first needle tube 231 and not completely slide out, and a limiting portion 217 is arranged at the joint of the needle end 211 and the needle tail end 213, so that the needle end 211 extends out of the first needle tube 231 and the needle tail end 213 is clamped inside the first needle tube 231.
It can be seen that the corrosion resistant spring probe 20 of this embodiment is of a four-piece construction and the needle 23 is of a split design. One of the needle tube 23 and the needle shaft 21 is made of nickel-based alloy or stainless steel which has good corrosion resistance, the other of the needle tube 23 and the needle shaft 21 is made of copper alloy which has good conductivity, the corrosion resistance is improved, the electrolytic performance is improved, the high-current charging use requirement is met, the phenomenon of poor electrolysis of the connector in the charging process due to the fact that the needle tube 23 and the needle shaft 21 are prone to corrosion is avoided, the service life of the spring probe 20 can be prolonged, and the cost is reduced.
The above disclosure is only a preferred embodiment of the present application and should not be taken as limiting the scope of the present application, so that the claims of the present application are covered by the appended claims.
Claims (5)
1. A corrosion-resistant spring probe is characterized by comprising a needle shaft, a needle tube and a spring, wherein the needle tube comprises a first needle tube and a second needle tube which are coaxially arranged, the diameter of the first needle tube is smaller than that of the second needle tube, the first needle tube is provided with a first accommodating cavity, the second needle tube is provided with a second accommodating cavity, the first needle tube is sleeved in the second needle tube, the first accommodating cavity is communicated with the second accommodating cavity to form an accommodating cavity, the needle shaft is provided with a needle head end and a needle tail end, the needle tail end is arranged in the accommodating cavity, the needle head end extends out of the accommodating cavity along one side of the first needle tube, the spring is located in the accommodating cavity, one end of the spring is connected with the needle tail end, the other end of the spring is connected with the bottom of the accommodating cavity, one of the needle tube and the needle shaft is made of nickel-based alloy or stainless steel, the other one of the needle tube and the needle shaft is made of copper alloy material, a groove is formed in one side of the needle shaft facing the direction of the accommodating cavity, one end of the spring extends into the groove and is connected with the groove wall of the groove, and the other end of the spring is connected with the bottom of the second accommodating cavity.
2. The corrosion resistant spring probe of claim 1, wherein said first needle cannula is comprised of a nickel based alloy or stainless steel material, said second needle cannula is comprised of a nickel based alloy or stainless steel material, and said needle shaft is comprised of a copper alloy material.
3. The corrosion resistant spring probe of claim 1 wherein said first needle cannula is a copper alloy material, said second needle cannula is a nickel based alloy or stainless steel material and said needle shaft is a copper alloy material.
4. The corrosion resistant spring probe of claim 1 wherein said first and second needle tubes are of a nickel based alloy, stainless steel or copper alloy material and said needle shaft is of a nickel based alloy or stainless steel material.
5. The corrosion resistant spring probe of claim 1 wherein said needle shaft has a stop at the junction of said needle head end and said needle tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394961.6U CN211789655U (en) | 2019-12-26 | 2019-12-26 | Corrosion-resistant spring probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394961.6U CN211789655U (en) | 2019-12-26 | 2019-12-26 | Corrosion-resistant spring probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789655U true CN211789655U (en) | 2020-10-27 |
Family
ID=72980285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922394961.6U Active CN211789655U (en) | 2019-12-26 | 2019-12-26 | Corrosion-resistant spring probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211789655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994238A (en) * | 2019-12-26 | 2020-04-10 | 东莞中探探针有限公司 | Corrosion-resistant spring probe |
-
2019
- 2019-12-26 CN CN201922394961.6U patent/CN211789655U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994238A (en) * | 2019-12-26 | 2020-04-10 | 东莞中探探针有限公司 | Corrosion-resistant spring probe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211789655U (en) | Corrosion-resistant spring probe | |
| CN104466484A (en) | Novel pogo pin | |
| CN110994238A (en) | Corrosion-resistant spring probe | |
| CN206388874U (en) | A kind of corrosion-resistant and low-impedance spring probe | |
| CN203762286U (en) | Electronic cigarette | |
| CN211453713U (en) | Voltage-withstanding insulation resistance tester | |
| CN210620967U (en) | Round pipe electroplating structure | |
| CN207730835U (en) | A kind of TDS detectors and its packaging technology | |
| CN206385267U (en) | A kind of Hanging device for electro plating | |
| CN204925201U (en) | Electric energy meter plug | |
| CN206388895U (en) | A kind of corrosion-resistant spring probe | |
| CN106119940B (en) | Method of barrel electroplating and the plating cage for realizing this method | |
| CN205893430U (en) | Electrically conductive first mechanism that electroplating barrel used | |
| CN204858045U (en) | Plug and phase -match socket thereof | |
| CN209841934U (en) | Terminal block subassembly | |
| CN209233017U (en) | A kind of plug with curved formula tail accessory | |
| CN212136720U (en) | Female terminal for connector | |
| CN203572848U (en) | Double-centre test probe | |
| CN106419895A (en) | Body surface electrode based on liquid metal and fast preparing method thereof | |
| CN203228131U (en) | Novel tweezers | |
| CN210350190U (en) | Reliable connecting terminal of connector heavy current | |
| CN106549236B (en) | A kind of corrosion-resistant and low-impedance spring probe | |
| CN206789752U (en) | Spring probe | |
| CN205900865U (en) | Plug subassembly and garden instrument thereof | |
| CN209233011U (en) | A kind of core dress hole plug |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |