CN106549236B - A kind of corrosion-resistant and low-impedance spring probe - Google Patents
A kind of corrosion-resistant and low-impedance spring probe Download PDFInfo
- Publication number
- CN106549236B CN106549236B CN201710018634.3A CN201710018634A CN106549236B CN 106549236 B CN106549236 B CN 106549236B CN 201710018634 A CN201710018634 A CN 201710018634A CN 106549236 B CN106549236 B CN 106549236B
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- China
- Prior art keywords
- tube body
- needle shaft
- corrosion
- resistant
- needle
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
Abstract
The invention discloses a kind of corrosion-resistant and low-impedance spring probe, including needle shaft, needle tubing and spring, needle tubing includes the first tube body and the second tube body；It is axially formed via hole along it in first tube body, which runs through the first tube body both ends；Blind hole has been axially formed along it in second tube body；Second tube body is placed on outside the bottom end of the first tube body, and via hole communicates to form an accommodating space with blind hole；First tube body is sheathed on the outside of needle shaft；Spring is installed in accommodating space, and one end is connected to the tail portion of needle shaft, and the other end is connected to the bottom of the blind hole of the second tube body.In the present invention, needle tubing uses separate structural design, and the stainless steel material with good corrosion resistance is used to the second body portion for being located at bottom, brass material with excellent conductive performance is used to superposed first body portion, so that promoting electrolysis performance while greatly promoting corrosion resistance, meet large current charge use demand, has a vast market foreground.
Description
Technical field
The present invention relates to art of electrical connectors fields, more particularly to a kind of corrosion-resistant and low-impedance spring probe.
Background technique
Spring probe also known as Pogo pin, also referred to as antenna thimble, probe, thimble are a kind of applied to mobile phone, intelligence
Precision connector in the electronic products such as energy wrist-watch, is widely used in the connection function between mainboard such as antenna, battery, for visitor
Family solves the purposes that the connection completed can not be difficult to elastic slice or other connectors.Performance is steady in use by Pogo pin
Fixed, contact performance height, connection product that is widely used, being connector first choice.
Currently, Pogo pin is mainly made of three components, respectively needle shaft, spring and needle tubing, needle shaft and spring, needle tubing
Riveted is integrated, and wherein needle tubing is usually an integral structure, and uses brass material, is had the following deficiencies: since needle tubing is adopted
With brass material, corrosion resistance is poor, thus when spring probe is applied to the wearable devices such as smartwatch, needle tubing is often
It can be because being corroded by sweat or other substances, so that spring probe is easy to happen electrolysis bad phenomenon during the charging process.
Summary of the invention
The purpose of the present invention is to provide a kind of corrosion-resistant and low-impedance spring probes, avoid leading because of needle tubing corrosion-vulnerable
It causes to occur being electrolysed bad phenomenon during the charging process.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of corrosion-resistant and low-impedance spring probe, including needle shaft, needle tubing and spring, the needle tubing include the first pipe
Body and the second tube body；
In first tube body, it is axially formed via hole along it, which runs through the both ends of the first tube body；Described
In two tube bodies, blind hole has been axially formed along it；Second tube body is placed on outside the bottom end of the first tube body, via hole and blind hole
It communicates to form an accommodating space；
The needle shaft includes the head and tail portion in integral structure；First tube body is sheathed on the outside of needle shaft, and
The tail portion of needle shaft is located inside accommodating space, head is stretched out outside accommodating space；
The spring is installed in inside the accommodating space, and for needle shaft to be connect with the second tube body, one end is connected to
The tail portion of needle shaft, the other end are connected to the bottom of the blind hole of the second tube body.
Optionally, second tube body is specially stainless steel tube body.
Optionally, first tube body is specially stainless steel tube body.
Optionally, first tube body is specially brass tube body.
Optionally, first outer surface of tube body is equipped with Gold plated Layer.
Optionally, the outer surface of first tube body is additionally provided with interference structure, is placed on the first pipe in second tube body
When outside the bottom end of body, the inner wall of the interference structure and the second tube body is inconsistent.
Optionally, it is additionally provided with limited step on the needle shaft, positioned at the junction on the head and tail portion.
Optionally, the end face of the tail portion of the needle shaft is plane.
Optionally, the end face of the tail portion of the needle shaft is inclined-plane.
Optionally, the end face on the head of the needle shaft is Surface of Sphere.
Beneficial effects of the present invention:
In spring probe provided in an embodiment of the present invention, needle tubing uses separate structural design, and to being located at the of bottom
Two body portions use the stainless steel material with good corrosion resistance, and using to superposed first body portion has
The brass material of excellent conductive performance meets high current so that promoting electrolysis performance while greatly promoting corrosion resistance
Charge use demand, has a vast market foreground.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the entirety sectional view of provided in an embodiment of the present invention corrosion-resistant and low-impedance spring probe；
Fig. 2 is the exploded view of provided in an embodiment of the present invention corrosion-resistant and low-impedance spring probe；
It illustrates: needle shaft 1, needle tubing 2, spring 3, head 11, tail portion 12, limited step 13, the first tube body 21, second pipe
Body 22, via hole 211, interference structure 212, blind hole 221.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment one
Referring to figs. 1 and 2, in the present embodiment, spring probe includes: needle shaft 1, needle tubing 2, spring 3；Spring 2 is installed
Inside needle tubing 2, needle tubing 2 is sheathed on 1 outside of needle shaft and one end of needle shaft 1 and stretches out outside, passes through bullet between needle shaft 1 and needle tubing 2
Spring 3 connects, and spring 3 can do stretching motion along the axial direction of needle tubing 2.
Wherein, needle tubing 2 uses separate structure, including the first tube body 21 and the second tube body 22.Along it in first tube body 21
It is axially formed via hole 211, which runs through the both ends of the first tube body 21；It is axially formed in second tube body 22 along it
There is blind hole 221, the aperture of the blind hole 221 is greater than the aperture of via hole 211.The fixation of second tube body 22 is placed on the first tube body 21
Using as bottom tube, via hole 211 communicates to form an accommodating space with blind hole 221 at this time outside bottom end.
The outer surface of first tube body 21 is additionally provided with interference structure 212, is assembled into one in the first tube body 21 and the second tube body 22
When body, the interference structure 212 and 22 inner wall of the second tube body generate frictional force, prevent two tube bodies to be mutually disengaged, increase assembly
Stability.
Needle shaft 1 includes the head 11 and tail portion 12 in integral structure；First tube body 21 is sheathed on the outside of needle shaft 1, and
The tail portion 12 of needle shaft 1 is located inside via hole 211, head 11 is stretched out outside via hole 211.
For the ease of installation, the head 11 of needle shaft 1 is stretched out from needle tubing 2 and is not exclusively skidded off again, head 11 and tail portion
12 junction is additionally provided with limited step 13, so that tail portion 12 is stuck in inside needle tubing 2 when 2 outside of needle tubing is stretched out on head 11.
Inside the accommodating space that spring 3 is installed in via hole 211 and blind hole 221 is formed, it is used for needle shaft 1 and the second tube body
21 connections, one end are connected to the tail portion 12 of needle shaft 1, and the other end is connected to the bottom of the blind hole 221 of the second tube body 21.
When in use, needle tubing 2 is electrically connected with corresponding electrode, then the head 11 of needle shaft 1 is inserted into connector, this
When spring 3 shrink so that the head 11 of needle shaft 1 it is corresponding with the contact in connector steady contact.When slight vibration occurs, bullet
Spring 3 can accordingly be shunk or diastole makes the head 11 of needle shaft 1 keep being steadily contacted with contact always, to guarantee that circuit is connected
It is smooth.
To realize that good corrosion resistance, the second tube body 22 are made of strong corrosion resistant material, are specifically as follows stainless
Various conductive metal materials can be used in steel material, the first tube body 21, specific unrestricted.
In use, under normal conditions, the bottom of needle tubing 2 is easy to be in contact and corroded with corrosive deposit, and this reality
It applies in example needle tubing 2 and uses separate structure, and as the second tube body 22 of bottom tube using having strong corrosion resistant performance and conduction
Stainless steel material, so that needle tubing 2 substantially increases corrosion resistance on the basis of realizing conductive.
Embodiment two
In the present embodiment, corrosion-resistant spring probe includes: needle shaft 1, needle tubing 2, spring 3.
Wherein, needle tubing 2 uses separate structure, including the first tube body 21 and the second tube body 22.Along it in first tube body 21
It is axially formed via hole 211, which runs through the both ends of the first tube body 21；It is axially formed in second tube body 22 along it
There is blind hole 221, the aperture of the blind hole 221 is greater than the aperture of via hole 211.The fixation of second tube body 22 is placed on the first tube body 21
Using as bottom tube, via hole 211 communicates to form an accommodating space with blind hole 221 at this time outside bottom end.
The outer surface of first tube body 21 is additionally provided with interference structure 212, is assembled into one in the first tube body 21 and the second tube body 22
When body, the interference structure 212 and 22 inner wall of the second tube body generate frictional force, prevent two tube bodies to be mutually disengaged, increase assembly
Stability.
Needle shaft 1 includes the head 11 and tail portion 12 in integral structure；First tube body 21 is sheathed on the outside of needle shaft 1, and
The tail portion 12 of needle shaft 1 is located inside via hole 211, head 11 is stretched out outside via hole 211.
Inside the accommodating space that spring 3 is installed in via hole 211 and blind hole 221 is formed, it is used for needle shaft 1 and the second tube body
21 connections, one end are connected to the tail portion 12 of needle shaft 1, and the other end is connected to the bottom of the blind hole 221 of the second tube body 21.
To realize that good corrosion resistance, the second tube body 22 are made of strong corrosion resistant material, are specifically as follows stainless
Steel material.
Meanwhile in order to realize low resistance, the first tube body 21 is using the conductive metal material with excellent conductive performance, specifically
For brass material, and its outer surface is gold-plated.
In order to realize good electric power conducting effect, it will usually it is required that resistance value caused by spring probe is the smaller the better,
Thus, the present embodiment two is improved on the basis of example 1, specifies the first tube body 21 using with satisfactory electrical conductivity
The gold-plated material of brass of energy meets high current and fills so that spring probe reduces impedance while realizing good corrosion resistance
The application demand of electricity.
Embodiment three
In order to realize good electric power conducting effect, it will usually it is required that resistance value caused by spring probe is the smaller the better,
And resistance value used by spring probe also has directly with needle shaft 1 and the contact area of needle tubing 2 other than related with the material used
Relationship is connect, size and the contact area of resistance value are inversely proportional.
Thus, in the present embodiment, corrosion-resistant spring probe includes: needle shaft 1, needle tubing 2, spring 3.
Needle tubing 2 uses separate structure, including the first tube body 21 and the second tube body 22.Along its axial shape in first tube body 21
At there is via hole 211, which runs through the both ends of the first tube body 21；Blind hole has been axially formed along it in second tube body 22
221, the aperture of the blind hole 221 is greater than the aperture of via hole 211.The fixation of second tube body 22 is placed on outside the bottom end of the first tube body 21
Portion is using as bottom tube, via hole 211 communicates to form an accommodating space with blind hole 221 at this time.
Needle shaft 1 includes the head 11 and tail portion 12 in integral structure；First tube body 21 is sheathed on the outside of needle shaft 1, and
The tail portion 12 of needle shaft 1 is located inside via hole 211, head 11 is stretched out outside via hole 211.
The end face on head 11 is designed using Surface of Sphere, with guarantee head 11 with contact is point-to-point contacts；The end face of tail portion 12
Inclined design is used, so that the run-off the straight in active procedure of needle shaft 1, increases the contact area of needle shaft 1 and the first tube body 21, drop
Low ESR promotes conductive performance.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of corrosion-resistant and low-impedance spring probe, including needle shaft, needle tubing and spring, which is characterized in that the needle tubing
Including the first tube body and the second tube body；
In first tube body, it is axially formed via hole along it, which runs through the both ends of the first tube body；Second pipe
In vivo, blind hole has been axially formed along it；Second tube body is placed on outside the bottom end of the first tube body, and via hole is communicated with blind hole
Form an accommodating space；
The needle shaft includes head and tail portion；First tube body is sheathed on the outside of needle shaft, and the tail portion of needle shaft is located at accommodating
Space interior, head are stretched out outside accommodating space；
The spring is installed in inside the accommodating space, and for needle shaft to be connect with the second tube body, one end is connected to needle shaft
Tail portion, the other end is connected to the bottom of the blind hole of the second tube body；
First tube body is specially brass tube body, and its outer surface is equipped with Gold plated Layer；
Second tube body is specially stainless steel tube body.
2. according to claim 1 corrosion-resistant and low-impedance spring probe, which is characterized in that outside first tube body
Surface is additionally provided with interference structure, when outside the bottom end that second tube body is placed on the first tube body, the interference structure and second
The inner wall of tube body is inconsistent.
3. according to claim 1 corrosion-resistant and low-impedance spring probe, which is characterized in that be additionally provided on the needle shaft
Limited step, positioned at the junction on the head and tail portion.
4. according to claim 1 corrosion-resistant and low-impedance spring probe, which is characterized in that the tail portion of the needle shaft
End face is plane.
5. according to claim 1 corrosion-resistant and low-impedance spring probe, which is characterized in that the tail portion of the needle shaft
End face is inclined-plane.
6. according to claim 1 corrosion-resistant and low-impedance spring probe, which is characterized in that the head of the needle shaft
End face is Surface of Sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018634.3A CN106549236B (en) | 2017-01-10 | 2017-01-10 | A kind of corrosion-resistant and low-impedance spring probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018634.3A CN106549236B (en) | 2017-01-10 | 2017-01-10 | A kind of corrosion-resistant and low-impedance spring probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106549236A CN106549236A (en) | 2017-03-29 |
| CN106549236B true CN106549236B (en) | 2019-06-28 |
Family
ID=58397571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710018634.3A Active CN106549236B (en) | 2017-01-10 | 2017-01-10 | A kind of corrosion-resistant and low-impedance spring probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106549236B (en) |
Families Citing this family (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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004977A (en) * | 1988-10-24 | 1991-04-02 | Nhk Spring Co., Ltd. | Contact probe |
| CN201255744Y (en) * | 2008-09-05 | 2009-06-10 | 中国工程物理研究院流体物理研究所 | Piezoelectric spring probe for blast wave measurement |
| CN102082345A (en) * | 2009-11-28 | 2011-06-01 | 富港电子（东莞）有限公司 | Back combined probe connector and manufacturing method thereof |
| CN202205934U (en) * | 2011-09-01 | 2012-04-25 | 东莞中探探针有限公司 | Spring-type connector with improved structure |
| CN202405439U (en) * | 2011-12-31 | 2012-08-29 | 东莞中探探针有限公司 | Probe type connector |
| CN203085809U (en) * | 2013-02-25 | 2013-07-24 | 深圳市爱默斯科技有限公司 | Inclined plane probe-type connector |
| CN206388874U (en) * | 2017-01-10 | 2017-08-08 | 东莞中探探针有限公司 | A kind of corrosion-resistant and low-impedance spring probe |
-
2017
- 2017-01-10 CN CN201710018634.3A patent/CN106549236B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004977A (en) * | 1988-10-24 | 1991-04-02 | Nhk Spring Co., Ltd. | Contact probe |
| CN201255744Y (en) * | 2008-09-05 | 2009-06-10 | 中国工程物理研究院流体物理研究所 | Piezoelectric spring probe for blast wave measurement |
| CN102082345A (en) * | 2009-11-28 | 2011-06-01 | 富港电子（东莞）有限公司 | Back combined probe connector and manufacturing method thereof |
| CN202205934U (en) * | 2011-09-01 | 2012-04-25 | 东莞中探探针有限公司 | Spring-type connector with improved structure |
| CN202405439U (en) * | 2011-12-31 | 2012-08-29 | 东莞中探探针有限公司 | Probe type connector |
| CN203085809U (en) * | 2013-02-25 | 2013-07-24 | 深圳市爱默斯科技有限公司 | Inclined plane probe-type connector |
| CN206388874U (en) * | 2017-01-10 | 2017-08-08 | 东莞中探探针有限公司 | A kind of corrosion-resistant and low-impedance spring probe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106549236A (en) | 2017-03-29 |
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