CN206420916U - A kind of testing needle - Google Patents
A kind of testing needle Download PDFInfo
- Publication number
- CN206420916U CN206420916U CN201621402564.9U CN201621402564U CN206420916U CN 206420916 U CN206420916 U CN 206420916U CN 201621402564 U CN201621402564 U CN 201621402564U CN 206420916 U CN206420916 U CN 206420916U
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- needle
- needle tubing
- spring
- testing
- tubing
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Abstract
The utility model embodiment discloses a kind of testing needle, the problem of moment disconnection unavoidably occur between needle shaft and needle tubing in the testing needle for solving prior art and cause instant cut-off.The utility model embodiment includes：The spring is arranged in the needle tubing；The needle tubing includes test openend and bottom open end；The needle shaft includes test head and tail end；The test head stretches out the test openend, and the tail end is sleeved in the needle tubing；The tail end is provided with metallic rod, and the metallic rod passes through the spring, extends to the bottom open end.Testing needle in the present embodiment, electric current directly passes through from needle shaft, and needs by needle tubing, thus completely avoid electric current walk needle shaft, needle tubing and because needle shaft and needle tubing moment disconnect and caused by instant cut-off the problem of.
Description
Technical field
The utility model is related to electronic, horological test point technical field, more particularly to a kind of testing needle.
Background technology
Testing needle, also referred to as probe, is divided into spring needle (special needle) and general pin, spring again in the industry when being tested for pcb board
Pin according to the installation scenarios for the pcb board tested when in use, it is necessary to make testing mould, and generally, a mould
A kind of pcb board can only be tested；General pin when in use, need to only there is enough points, therefore many producers are all using now
General pin；Spring needle is divided into pcb board probe, ICT probes, BGA probes according to service condition again, and pcb board probe is mainly used in PCB
Board test, ICT probes are mainly used in the on-line testing after plug-in unit, and BGA probes are mainly used in BGA package test and chip testing.
The testing needle used in currently available technology, needle shaft inclined-plane and the anti-work of spring are passed through using steel ball plus spring product
Firmly make to be in close contact between needle shaft and needle tubing, but because needle shaft is that gap coordinates with needle tubing, in compression process, needle shaft
Inevitably there is moment disconnection and causes electric current to walk spring in cooperation between needle tubing, to reduce such risk, and in pin
Steel ball is added between axle and needle tubing.But so the moment between needle tubing and needle shaft, steel ball can not be avoided to disconnect completely, and assembling is difficult
Degree is big, high processing costs.
Therefore, the testing needle that a kind of electric current directly can pass through from needle shaft is found, is studied as those skilled in the art
Important topic.
Utility model content
The utility model embodiment discloses a kind of testing needle, needle shaft and needle tubing in the testing needle for solving prior art
Between it is inevitable the problem of moment occur and disconnect and cause instant cut-off.
The utility model embodiment provides a kind of testing needle, including：Needle shaft, needle tubing and spring；
The spring is arranged in the needle tubing；
The needle tubing includes test openend and bottom open end；
The needle shaft includes test head and tail end；
The test head stretches out the test openend, and the tail end is sleeved in the needle tubing；
The tail end is provided with metallic rod, and the metallic rod passes through the spring, extends to the bottom open end.
Alternatively, the metallic rod and the tail end are formed in one structure.
Alternatively, the needle shaft is brass needle shaft.
Alternatively, the needle tubing is brass needle tubing.
Alternatively, the spring is qin steel wire spring.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model embodiment, which provides a kind of testing needle, to be included：Needle shaft, needle tubing and spring；The spring is arranged at institute
State in needle tubing；The needle tubing includes test openend and bottom open end；The needle shaft includes test head and tail end；It is described
Test head stretches out the test openend, and the tail end is sleeved in the needle tubing；The tail end is provided with metallic rod,
The metallic rod passes through the spring, extends to the bottom open end.Testing needle in the present embodiment, electric current is directly from needle shaft
On pass through, it is to avoid electric current arrives needle tubing again by needle shaft, solves between needle shaft and needle tubing and inevitable moment occur and disconnect and make
The problem of into instant cut-off.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the testing needle provided in the utility model embodiment；
Illustrate：Needle shaft 1；Needle tubing 2；Spring 3.
Embodiment
The utility model embodiment discloses a kind of testing needle, needle shaft and needle tubing in the testing needle for solving prior art
Between it is inevitable the problem of moment occur and disconnect and cause instant cut-off.
Referring to Fig. 1, a kind of one embodiment of the testing needle provided in the utility model embodiment includes：
Needle shaft 1, needle tubing 2 and spring 3；
Spring 3 is arranged in needle tubing 2；
Needle tubing 2 includes test openend and bottom open end；
Needle shaft 1 includes test head and tail end；
Test head stretches out test openend, and tail end is sleeved in needle tubing 2；
Tail end is provided with metallic rod, and metallic rod passes through spring 3, extends to bottom open end；
In the present embodiment, metallic rod is the metallic rod of cylindrical type bar or other shapes；Due to being provided with metal in tail end
Bar, electric current directly can pass through from needle shaft, solve between needle shaft and needle tubing and moment disconnection unavoidably occur and cause moment
The problem of power-off.
Further, metallic rod and tail end are formed in one structure.
Further, needle shaft 1 is brass needle shaft.
Further, needle tubing 2 is brass needle tubing.
Further, spring 3 is qin steel wire spring.
Above-mentioned is that a kind of concrete structure of the testing needle provided the utility model embodiment is described in detail, below
This testing needle will be further described through with an application process, a kind of testing needle that the utility model embodiment is provided
One application examples includes：
This testing needle includes needle shaft, needle tubing and spring；Spring is arranged in needle tubing；Needle tubing includes test openend and bottom
Openend；Needle shaft includes test head and tail end；Test head stretches out test openend, and tail end is sleeved in needle tubing；Tail
End is provided with metallic rod, and metallic rod passes through spring, extends to bottom open end.
Electric current or voltage signal are by the transmission of testing needle come the open circuit of measurement circuit plate or short circuit, wherein testing needle
Application process：
Then electric current or control source measured device are measured shadow of the device for input signal by parameter test system
Ring.
The transmission path of signal：From tester by bunch of cables to test needle tubing, then by testing needle needle shaft to be measured
Solder joint, reach measured device, and last along backtracking to tester.
Testing needle is analyzed：Testing needle needle shaft tail end compression spring, spring entirety stress during test, it is ensured that pressure perpendicular is made
For spring, high current does not pass through needle tubing directly by needle shaft during test.
This testing needle in tail end due to being provided with metallic rod, through whole needle tubing so that electric current directly passes through from needle shaft,
The problem of solving unavoidably to occur moment disconnection in the testing needle of prior art between needle shaft and needle tubing and cause instant cut-off.
A kind of testing needle provided by the utility model is described in detail above, for the general technology of this area
Personnel, according to the thought of the utility model embodiment, will change, to sum up in specific embodiments and applications
Described, this specification content should not be construed as to limitation of the present utility model.
Claims (5)
1. a kind of testing needle, it is characterised in that including needle shaft, needle tubing and spring；
The spring is arranged in the needle tubing；
The needle tubing includes test openend and bottom open end；
The needle shaft includes test head and tail end；
The test head stretches out the test openend, and the tail end is sleeved in the needle tubing；
The tail end is provided with metallic rod, and the metallic rod passes through the spring, extends to the bottom open end.
2. testing needle according to claim 1, it is characterised in that the metallic rod and the tail end are formed in one knot
Structure.
3. testing needle according to claim 1, it is characterised in that the needle shaft is brass needle shaft.
4. testing needle according to claim 1, it is characterised in that the needle tubing is brass needle tubing.
5. testing needle according to claim 1, it is characterised in that the spring is qin steel wire spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402564.9U CN206420916U (en) | 2016-12-20 | 2016-12-20 | A kind of testing needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402564.9U CN206420916U (en) | 2016-12-20 | 2016-12-20 | A kind of testing needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420916U true CN206420916U (en) | 2017-08-18 |
Family
ID=59575512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402564.9U Active CN206420916U (en) | 2016-12-20 | 2016-12-20 | A kind of testing needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206420916U (en) |
-
2016
- 2016-12-20 CN CN201621402564.9U patent/CN206420916U/en active Active
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| GR01 | Patent grant |