CN207662944U - A kind of testing needle - Google Patents
A kind of testing needle Download PDFInfo
- Publication number
- CN207662944U CN207662944U CN201721804213.5U CN201721804213U CN207662944U CN 207662944 U CN207662944 U CN 207662944U CN 201721804213 U CN201721804213 U CN 201721804213U CN 207662944 U CN207662944 U CN 207662944U
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- Prior art keywords
- needle
- shaft
- test head
- testing
- tubing
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Abstract
The utility model embodiment discloses a kind of testing needle, when having the needle shaft of large contact area for solving existing testing needle, needs to be assembled by the way of sealing knife mouth, causes packaging efficiency low, and the technical problem that packaging technology is unstable.The present embodiment includes needle shaft and needle tubing；The needle shaft includes test head, tail end and the connecting shaft for being connected to the test head and the tail end of cylindrical type；The tail end is set in the needle tubing；The test head stretches out the open end of the needle tubing, moreover, the diameter of the cross section of the test head is bigger than the pipe interior diameter of the needle tubing；Annular groove is offered on the position that the test head connects with the connecting shaft.In the present embodiment, an increased enclosuring structure specifically offers annular groove on the position that cylindrical type needle shaft connects with connecting shaft on the basis of needle shaft, the testing needle with large contact area needle shaft may make to assemble simpler, packaging efficiency higher.
Description
Technical field
The utility model is related to testing needle design field more particularly to a kind of testing needles.
Background technology
Testing needle, also referred to as probe, is divided into when being tested for pcb board as spring needle (special needle) and general needle, spring in the industry
Needle when in use, needs to make testing mould according to the installation scenarios for the pcb board tested, and under normal circumstances, a mold
A kind of pcb board can only be tested；General needle when in use, only needs to have enough points, therefore many producers are all using now
General needle；Spring needle is divided into according to service condition as pcb board probe, ICT probes, BGA probes, and pcb board probe is mainly used for PCB
Board test, ICT probes are mainly used for the on-line testing after plug-in unit, and BGA probes are mainly used for BGA package test and chip testing.
Currently, common probe assembling mode is pressure head sealing assembling in industry, but seals assembling and be only applicable to needle shaft
The diameter of the cross section testing needle smaller than needle tubing pipe interior diameter is needed when needing to increase the contact area of needle shaft or increase needle shaft
It to be assembled by the way of sealing knife mouth, which efficiency is slower, and packaging technology is unstable.
Therefore, a kind of assembling of searching is simpler, and the more efficient testing needle with the larger needle shaft of contact area becomes
The important topic that those skilled in the art is studied.
Utility model content
The utility model embodiment discloses a kind of testing needle, has larger connect for solving testing needle in the prior art
When the needle shaft of contacting surface product, needs to be assembled by the way of sealing knife mouth, cause packaging efficiency low, and packaging technology is unstable
The technical issues of.
The utility model embodiment provides a kind of testing needle, including needle shaft and needle tubing；
The needle shaft includes the test head of cylindrical type, tail end and is connected to the test head and the tail end
Connecting shaft；
The tail end is set in the needle tubing；The test head stretches out the open end of the needle tubing, moreover, described
The diameter of the cross section of test head is bigger than the pipe interior diameter of the needle tubing；Described in the diameter ratio of the cross section of the test head
The diameter of the cross section of connecting shaft is big；
Annular groove is offered on the position that the test head connects with the connecting shaft.
Optionally, further include spring；
The inside of the needle shaft offers blind hole；The opening direction of the blind hole is towards the open end of the needle tubing；
The spring is set to the inside of the needle tubing, also, in blind hole of the spring pocket loaded on the needle shaft.
Optionally, the test head, the tail end and the connecting shaft are an integral molding structure.
Optionally, the needle shaft is brass needle shaft.
Optionally, the needle tubing is brass needle tubing.
Optionally, one layer of insulated paint is coated on the spring.
Optionally, the spring is qin steel wire spring.
As can be seen from the above technical solutions, the utility model embodiment has the following advantages：
The utility model embodiment provides a kind of testing needle, including needle shaft and needle tubing；The needle shaft includes cylindrical type
Test head, tail end and the connecting shaft for being connected to the test head and the tail end；The tail end is set in institute
It states in needle tubing；The test head stretches out the open end of the needle tubing, moreover, the diameter of the cross section of the test head compares institute
The pipe interior diameter for stating needle tubing is big；Annular groove is offered on the position that the test head connects with the connecting shaft.This implementation
In example, increased enclosuring structure on the basis of needle shaft, specifically, on the position that cylindrical type needle shaft connects with connecting shaft
Annular groove is offered, may make the testing needle with large contact area needle shaft to assemble simpler, packaging efficiency is more
It is high.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the testing needle provided in the utility model embodiment；
Fig. 2 is a kind of Structure explosion diagram of the testing needle provided in the utility model embodiment；
It illustrates：Needle shaft 1；Test head 11；Connecting shaft 12；Tail end 13；Annular groove 14；Spring 2；Needle tubing 3.
Specific implementation mode
The utility model embodiment discloses a kind of testing needle, has large contact area for solving existing testing needle
Needle shaft when, need to be assembled by the way of sealing knife mouth, cause packaging efficiency low, and the technology that packaging technology is unstable
Problem.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.Obviously, described embodiment is only the utility model part
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of one embodiment of the testing needle provided in the utility model embodiment includes：
Needle shaft 1 and needle tubing 3；
Wherein the test head 11 of needle shaft 1 including cylindrical type, tail end 13 and it is connected to test head 11 and tail end
13 connecting shaft 12；
The tail end 13 of needle shaft 1 is set in needle tubing 3；The test head 11 of needle shaft 1 stretches out the open end of needle tubing 3, moreover,
The diameter of the cross section of test head 11 is bigger than the pipe interior diameter of needle tubing 3；The diameter of the cross section of test head 11 is than connection
The diameter of the cross section of axis 12 is big；
Annular groove 14, also, the opening side of groove are offered on the position that test head 11 connects with connecting shaft 12
To the open end towards the needle tubing 3；
It should be noted that the purpose for opening up annular groove 14 on the position that test head 11 connects with connecting shaft 12 is
Using annular groove 14 so that test head 11 and the open end of needle tubing 3 form an enclosuring structure, to be sealed instead of sealing knife
Mouthful assembling mode so that entire testing needle assemble it is more convenient, assembling it is more efficient.
Further, enclosuring structure is not restricted to 14 structure of above-mentioned described annular groove, can also be other classes
As structure.
As can be seen from the above technical solutions, the utility model embodiment has the following advantages：
In the present embodiment, increased enclosuring structure on the basis of needle shaft 1, specifically, in cylindrical type needle shaft 1 and even
Annular groove 14 is offered on the position that spindle 12 connects, and the testing needle group with large contact area needle shaft 1 may make to load
Carry out simpler, packaging efficiency higher.
It please refers to Fig.1 and Fig. 2, the testing needle in the present embodiment, further includes having spring 2；
Blind hole is offered in the inside of needle shaft 1；The opening direction of blind hole is towards the open end of needle tubing 3；
Spring 2 is placed on the inside of needle tubing 3, also, spring 2 is set in the blind hole of needle shaft 1；
It should be noted that by offering blind hole in the inside of needle shaft 1, spring 2 can be set in the blind hole, may make
The collapsing length range of test head 11 is wider.
Please refer to Fig.1 and Fig. 2, test head 11, tail end 13 and the connecting shaft 12 in the present embodiment be all one at
The structure of type.
It should be noted that integrally formed structure is arranged, ensure the continuity that electric current flows on needle shaft 1.
It please refers to Fig.1 and Fig. 2, the needle shaft 1 and needle tubing 3 in the present embodiment all can be used brass and be fabricated.
Further, spring 2 is to be fabricated by qin steel wire, also, one layer of insulated paint is coated on spring 2；
It is flowed through from spring 2 it should be noted that being coated with one layer of insulated paint on spring 2 and can avoid electric current, prevents spring 2
The risk being burned out.
Above-mentioned is that a kind of concrete structure of the testing needle provided the utility model embodiment is described in detail, under
Face will be further described this testing needle with an application process, a kind of testing needle that the utility model embodiment provides
An application examples include：
Electric current either voltage signal by testing needle transmission 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
It rings.
The transmission path of signal：From tester by bunch of cables to test needle tubing 3, then by testing needle needle shaft 1 to waiting for
The solder joint of survey reaches measured device, and finally along backtracking to test equipment.
Testing needle is analyzed：13 compressed spring 2 of tail end of testing needle needle shaft 1, the whole stress of spring 2 when test, it is ensured that pressure
Power acts perpendicularly to spring 2, and electric current flows to the surface of needle tubing 3 from needle shaft 1 when test.
Testing needle in the present embodiment is provided with annular groove 14, profit in the junction of test head 11 and connecting shaft 12
With annular groove 14 so that test head 11 and the open end of needle tubing 3 form an enclosuring structure, to be sealed instead of sealing knife
Assembling mode so that entire testing needle assemble it is more convenient, assembling it is more efficient.
A kind of testing needle provided by the utility model is described in detail above, for the general technology of this field
Personnel, based on the idea of the embodiment of the present invention, there will be changes in the specific implementation manner and application range, to sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (7)
1. a kind of testing needle, which is characterized in that including needle shaft and needle tubing；
The needle shaft includes test head, tail end and the company for being connected to the test head and the tail end of cylindrical type
Spindle；
The tail end is set in the needle tubing；The test head stretches out the open end of the needle tubing, moreover, the test
The diameter of the cross section on head is bigger than the pipe interior diameter of the needle tubing；The diameter of the cross section of the test head is than the connection
The diameter of the cross section of axis is big；
Annular groove is offered on the position that the test head connects with the connecting shaft.
2. testing needle according to claim 1, which is characterized in that further include spring；
The inside of the needle shaft offers blind hole；The opening direction of the blind hole is towards the open end of the needle tubing；
The spring is set to the inside of the needle tubing, also, in blind hole of the spring pocket loaded on the needle shaft.
3. testing needle according to claim 1, which is characterized in that the test head, the tail end and the company
Spindle is an integral molding structure.
4. testing needle according to claim 1, which is characterized in that the needle shaft is brass needle shaft.
5. testing needle according to claim 1, which is characterized in that the needle tubing is brass needle tubing.
6. testing needle according to claim 2, which is characterized in that be coated with one layer of insulated paint on the spring.
7. testing needle according to claim 2, which is characterized in that the spring is qin steel wire spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804213.5U CN207662944U (en) | 2017-12-21 | 2017-12-21 | A kind of testing needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804213.5U CN207662944U (en) | 2017-12-21 | 2017-12-21 | A kind of testing needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207662944U true CN207662944U (en) | 2018-07-27 |
Family
ID=62941857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721804213.5U Active CN207662944U (en) | 2017-12-21 | 2017-12-21 | A kind of testing needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207662944U (en) |
-
2017
- 2017-12-21 CN CN201721804213.5U patent/CN207662944U/en active Active
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|---|---|---|---|
| GR01 | Patent grant |