CN107942109A - A kind of testing needle for being used for transmission high-frequency signal - Google Patents
A kind of testing needle for being used for transmission high-frequency signal Download PDFInfo
- Publication number
- CN107942109A CN107942109A CN201711396215.XA CN201711396215A CN107942109A CN 107942109 A CN107942109 A CN 107942109A CN 201711396215 A CN201711396215 A CN 201711396215A CN 107942109 A CN107942109 A CN 107942109A
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- connecting shaft
- tail end
- diameter
- needle
- cross
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- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 235000014676 Phragmites communis Nutrition 0.000 claims description 32
- 238000000465 moulding Methods 0.000 claims description 4
- 244000089486 Phragmites australis subsp australis Species 0.000 claims 1
- 239000000523 sample Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 244000273256 Phragmites communis Species 0.000 description 2
- 238000000576 coating method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06772—High frequency probes
Abstract
The embodiment of the invention discloses a kind of testing needle for being used for transmission high-frequency signal, the technical problem poor for solving existing testing needle transmission high-frequency signal performance.The present embodiment includes needle shaft, needle tubing, insulation sleeve with spring of coming of age；Needle shaft includes test head, tail end and for connecting test head and the first connecting shaft of tail end；Test head stretches out the openend of needle tubing；Tail end is set in needle tubing；The diameter of the cross section of first connecting shaft is smaller than the diameter of the cross section of tail end；The diameter of the cross section of first connecting shaft is smaller than the diameter of the cross section of test head；Insulation sleeve is set in the first connecting shaft；One end of tail end is provided with the second connecting shaft；Second connecting shaft is connected with abutting portion；The diameter of the cross section of second connecting shaft is smaller than the diameter of the cross section of tail end；The diameter of the cross section of second connecting shaft is smaller than the diameter of the cross section of abutting portion；Hat spring is set in the second connecting shaft；The lateral surface of hat spring is close to the inner wall of the needle tubing.
Description
Technical field
The present invention relates to testing needle design and manufacturing technology field, more particularly to a kind of test for being used for transmission high-frequency signal
Pin.
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 under normal circumstances, a mould
A kind of pcb board can only be tested；General pin when in use, only needs to have 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 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.
The existing testing needle for being used for transmission high-frequency signal on the market there are the phenomenon that electric current is split, the reason is that, such
Testing needle, the connection between needle shaft and needle tubing has between needle tubing and needle shaft there are gap and contacts unstable risk, this leads
Send a telegraph stream to be split, cause electric current to be transmitted without reaching a stable level so that signal transmission produces unstable.
Therefore a kind of testing needle for enabling to high frequency signal transmission to stablize is found to be studied as those skilled in the art
Important topic.
The content of the invention
The embodiment of the invention discloses a kind of testing needle for being used for transmission high-frequency signal, for solving survey of the prior art
The poor technical problem of test point transmission high-frequency signal performance.
An embodiment of the present invention provides a kind of testing needle for being used for transmission high-frequency signal, including needle shaft, needle tubing, insulation sleeve with
Come of age spring；
The needle shaft include test head, tail end and for connecting the test head and the tail end first
Connecting shaft；
The test head stretches out the openend of the needle tubing；The tail end is set in the needle tubing；
The diameter of the cross section of first connecting shaft is smaller than the diameter of the cross section of the tail end；
The diameter of the cross section of first connecting shaft is smaller than the diameter of the cross section of the test head；
The insulation sleeve is set in first connecting shaft, also, the first end of the insulation sleeve is close to the survey
Head is tried, the second end of the insulation sleeve is close to the tail end；
The tail end is provided with the second connecting shaft towards one end in needle tubing；Second connecting shaft is connected with conflict
Portion；
The diameter of the cross section of second connecting shaft is smaller than the diameter of the cross section of the tail end；
The diameter of the cross section of second connecting shaft is smaller than the diameter of the cross section of the abutting portion；
The hat spring is set in second connecting shaft, also, the first end of the hat spring is close to the tail end；
The second end of the hat spring is close to the abutting portion；The lateral surface of the hat spring is close to the inner wall of the needle tubing.
Alternatively, the hat spring includes axially being divided into the end band at the hat spring both ends, positioned at described in two along the hat spring
Middle band between the band of end and it is connected between each end band and the middle band and spaced some reeds.
Alternatively, the first lug boss of the inner wall direction projection of oriented needle tubing is set on the reed.
Alternatively, the reed includes the first reed and the second reed；
First reed is the first reed of board-type；
Second lug boss of the inner wall direction projection of oriented needle tubing is set on second reed.
Alternatively, it is provided with second reed between every two pieces first reeds.
Alternatively, the end band of described hat spring one end is close to the tail end, and the end band of the hat spring other end is close to
The abutting portion.
Alternatively, the outer wall of first connecting shaft is close to the inner wall of the insulation sleeve.
Alternatively, first connecting shaft is an integral molding structure with the test head and the tail end；
Second connecting shaft is an integral molding structure with the tail end and the abutting portion.
Alternatively, the openend of the tail end and the needle tubing is riveted.
Alternatively, it is further sleeved with spring in the needle tubing；
The first end of the spring is close to the abutting portion, and the second end of the spring is close to remaining silent for the needle tubing
End.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages：
An embodiment of the present invention provides a kind of testing needle for being used for transmission high-frequency signal, including needle shaft, needle tubing, insulation sleeve with
Come of age spring；The needle shaft include test head, tail end and for connect the test head and the tail end=the
One connecting shaft；The test head stretches out the openend of the needle tubing；The tail end is set in the needle tubing；Described first
The diameter of the cross section of connecting shaft is smaller than the diameter of the cross section of the tail end；The diameter of the cross section of first connecting shaft
Diameter than the cross section of the test head is small；The insulation sleeve is set in first connecting shaft, also, the insulation
The first end of set is close to the test head, and the second end of the insulation sleeve is close to the tail end；The tail end court
One end into needle tubing is provided with the second connecting shaft；Second connecting shaft is connected with abutting portion；The horizontal stroke of second connecting shaft
The diameter in section is smaller than the diameter of the cross section of the tail end；The diameter of the cross section of second connecting shaft is than the conflict
The diameter of the cross section in portion is small；The hat spring is set in second connecting shaft, also, the first end of the hat spring is close to
The tail end, the second end of the hat spring are close to the abutting portion；The lateral surface of the hat spring is close to the needle tubing
Inner wall.Testing needle in the present embodiment, loads onto insulation sleeve with spring of coming of age using being covered on needle shaft, has prevented showing for current distributing
As when electric current is flowed into the second connecting shaft, electric current, which will pass through hat spring, circle distribution in the surface of needle tubing, to avoid electric current at the same time
By spring, to provide the high frequency signal transmission performance of high-quality, the stability of electric current flowing ensure that so that high-frequency signal passes
It is defeated more to stablize.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structure diagram of the testing needle for being used for transmission high-frequency signal provided in the embodiment of the present invention；
Fig. 2 is a kind of Structure explosion diagram of the testing needle for being used for transmission high-frequency signal provided in the embodiment of the present invention；
Fig. 3 is a kind of the first for being preced with spring being used for transmission in the testing needle of high-frequency signal provided in the embodiment of the present invention
Structure diagram；
Fig. 4 is a kind of the first for being preced with spring being used for transmission in the testing needle of high-frequency signal provided in the embodiment of the present invention
The front elevation of structure；
Fig. 5 is second of a kind of hat spring being used for transmission in the testing needle of high-frequency signal provided in the embodiment of the present invention
Structure diagram；
Fig. 6 is second of a kind of hat spring being used for transmission in the testing needle of high-frequency signal provided in the embodiment of the present invention
The front elevation of structure；
Illustrate：Needle shaft 1；Test head 11；First connecting shaft 12；Tail end 13；Second connecting shaft 14；Abutting portion
15；Insulation sleeve 2；It is preced with spring 3；Hold band 31；Middle band 32；Reed 33；First lug boss 34；First reed 35；Second reed 36；Second
Lug boss 37；Spring 4；Needle tubing 5.
Embodiment
The embodiment of the invention discloses a kind of testing needle for being used for transmission high-frequency signal, for solving survey of the prior art
The poor technical problem of test point transmission high-frequency signal performance.
In order to make those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, belong to the scope of protection of the invention.
Please refer to Fig.1 to Fig. 6, one of a kind of testing needle for being used for transmission high-frequency signal provided in the embodiment of the present invention
Embodiment includes：
Needle shaft 1, needle tubing 5, insulation sleeve 2 are with spring 3 of coming of age；
Wherein, needle shaft 1 includes test head 11, tail end 13 and for connecting the test head 11 and tail end 13
First connecting shaft 12；
The tail end 13 is set in the inside of needle tubing 5, and test head 11 then stretches out the openend of needle tubing 5；
The diameter of the cross section of the first above-mentioned connecting shaft 12 is smaller than the diameter of the cross section of tail end 13；
Similarly, the diameter of the cross section of the first connecting shaft 12 is smaller than the diameter of the cross section of test head 11；
Above-mentioned insulation sleeve 2 is set with the first connecting shaft 12, moreover, the first end of insulation sleeve 2 is close to measuring head
Portion 11, the second end of insulation sleeve 2 are close to tail end 13；
It should be noted that cross sectional radius and tail of the diameter of the cross section of the first connecting shaft 12 than test head 11
The reason for diameter of the cross section of end 13 is small is that equivalent to one limited block of test head 11 and tail end 13, works as insulation
When set 2 is sleeved in the first connecting shaft 12, by test head 11 and the position-limiting action of tail end 13, insulation sleeve 2 cannot fall
Drop out and, solve existing collets well and hold caducous phenomenon, in addition, mode in this way installs collets, very
Solve well between needle shaft 1 and needle tubing 5 there are gap, cause the phenomenon of current distributing, ensured the stability of electric current flowing.
Above-mentioned tail end 13 is provided with the second connecting shaft 14 towards one end inside needle tubing 5, in the second connecting shaft 14 also
It is connected with abutting portion 15；
Wherein, the diameter of the cross section of the second connecting shaft 14 is smaller than the diameter of the cross section of tail end 13；
The diameter of the cross section of second connecting shaft 14 is smaller than the diameter of the cross section of abutting portion 15；
Wherein, above-mentioned hat spring 3 is set with the second connecting shaft 14, also, the first end for being preced with spring 3 is close to tail end
13, the second end of hat spring 3 is close to abutting portion 15, and the lateral surface of hat spring 3 is close to the inner wall of the needle tubing 5.
It should be noted that tail end 13 and the limited block of abutting portion 15 equivalent to one, when hat spring 3 is sleeved on the first connection
It is that, by tail end 13 and the position-limiting action of abutting portion 15, hat spring 3 is just not easy to drop on axis 12, moreover, hat spring 3 is arranged at
The inside of needle tubing 5, and fitted closely with the inner wall of needle tubing 5, when electric current is flowed into the second connecting shaft 14, will pass through hat spring 3 can be same
When circle distribution in the surface of needle tubing 5, electric current is avoided by spring 4, to provide the high frequency signal transmission performance of high-quality.
Refer to 3 to Fig. 6, the hat spring 3 in the present embodiment includes along hat 3 axial direction of spring and is divided into the end band at the yellow both ends of hat
31st, positioned at two end band 31 between middle bands 32 and be connected between each end band 31 and middle band 32 and spaced some
Reed 33.
It should be noted that each end band 31, middle band 32 and the group for connecting the end band 31 and the reed 33 of middle band 32
Conjunction is in wine bucket-type.
Above-mentioned hat spring 3 is not limited to a kind of structure, can use the hat spring 3 of different structure, be described below two kinds not
Isostructural hat spring 3；
Fig. 3 and Fig. 4 are referred to, alternatively, the basic structure of spring 3 is preced with according to foregoing description, on above-mentioned architecture basics,
A kind of structure of hat spring 3 in the present embodiment sets the first lug boss of the inner wall direction projection of oriented needle tubing 5 on reed 33
34；
It should be noted that the hat spring 3 of the structure, passes through the first lug boss 34 and needle tubing 5 being arranged on reed 33
Inner wall is contacted, so that electric current preferably flows to the surface of needle shaft 1.
Refer to Fig. 5 and Fig. 6, alternatively, according to foregoing description be preced with spring 3 into this structure, on upper architecture basics, this
The reed 33 of another structure of hat spring 3 in embodiment is divided to for two kinds, including the first reed of board-type 35；On second reed 36
Second lug boss 37 of oriented 5 inner wall direction projection of needle tubing is set；
Further, it is provided with the second reed 36 between every two piece of first reed 35.
It should be noted that similarly, the second lug boss 37 is provided with the first reed 35, also it is so that electric current is more preferable
Ground flows to the surface of needle shaft 1.
Please refer to Fig.1 to Fig. 6, one end end band 31 of the hat spring 3 in the present embodiment is close to tail end 13, hat spring 3 it is another
The end band 31 of one end is close to abutting portion 15.
It should be noted that the purpose of such design is in order to enable the gap connected between element reduces as far as possible,
To avoid electric current by producing unstable phenomenon.
Referring to Fig. 1, the inner wall of the outer wall and insulation sleeve 2 of the first connecting shaft 12 in the present embodiment fits closely；
It should be noted that such purpose is in order to enable insulation sleeve 2 not readily disengages from.
Further, the knot that the first connecting shaft 12 in the present embodiment is integrally formed with test head 11 and tail end 13
Structure；
Further, the knot that the second connecting shaft 14 in the present embodiment is integrally formed with tail end end and abutting portion 15
Structure；
It should be noted that it is in order to enable electric current can be carried out continuously stream that needle shaft 1 is designed as integrally formed structure
It is dynamic, if split type structure, then the generation in gap is had between part, then the flowing of electric current can depositing due to gap
Becoming discontinuous.Therefore, the needle shaft 1 in this implementation uses integrally formed structure.
Please refer to Fig.1 and Fig. 2, the tail end 13 of the needle shaft 1 in the present embodiment is that needle tubing 5 is set in by way of riveting
Openend.
Please refer to Fig.1 and Fig. 2, spring 4 is further sleeved with the needle tubing 5 in the present embodiment；
The first end of the spring 4 is close to abutting portion 15, and the second end of spring 4 is close to the closed end of needle tubing 5.
It should be noted that spring 4, which obtains, scribbles one layer of insulation coatings on surface.
It is above-mentioned be to the concrete structure of a kind of testing needle for being used for transmission high-frequency signal provided in the embodiment of the present invention into
The detailed description of row, will be further described the testing needle in the present embodiment with an application process below, the present invention
A kind of one application examples of the testing needle for being used for transmission high-frequency signal provided in embodiment includes：
From fig. 1, it can be seen that the testing needle in the present embodiment, electric current is flowed since needle shaft 1 first, due on needle shaft 1
First connecting shaft 12 is set with insulation sleeve 2, and electric current can only be flowed through from needle shaft 1, when electric current flows to the second connection of tail end 13
During axis 14, due to being provided with hat spring 3 in the second connecting shaft 14, moreover, the inner wall of the lateral surface and needle shaft 1 of hat spring 3 fits closely,
Due to scribbling one layer of insulated paint on spring 4, electric current can only flow to the surface of needle tubing 5 by being preced with spring 3, moreover, using being preced with spring
3 lateral surface can ensure that electric current can circle distribution be in the surface of needle tubing 5 at the same time on needle shaft 1, to provide the high-frequency signal of high-quality
Transmission performance.
A kind of testing needle for being used for transmission high-frequency signal provided by the present invention is described in detail above, for this
The those skilled in the art in field, according to the thought of the embodiment of the present invention, have change in specific embodiments and applications
Become part, in conclusion this specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of testing needle for being used for transmission high-frequency signal, it is characterised in that including needle shaft, needle tubing, insulation sleeve with spring of coming of age；
The needle shaft includes test head, tail end and the first connection for connecting the test head and the tail end
Axis；
The test head stretches out the openend of the needle tubing；The tail end is set in the needle tubing；
The diameter of the cross section of first connecting shaft is smaller than the diameter of the cross section of the tail end；
The diameter of the cross section of first connecting shaft is smaller than the diameter of the cross section of the test head；
The insulation sleeve is set in first connecting shaft, also, the first end of the insulation sleeve is close to the measuring head
Portion, the second end of the insulation sleeve are close to the tail end；
The tail end is provided with the second connecting shaft towards one end in needle tubing；Second connecting shaft is connected with abutting portion；
The diameter of the cross section of second connecting shaft is smaller than the diameter of the cross section of the tail end；
The diameter of the cross section of second connecting shaft is smaller than the diameter of the cross section of the abutting portion；
The hat spring is set in second connecting shaft, also, the first end of the hat spring is close to the tail end；It is described
The second end of hat spring is close to the abutting portion；The lateral surface of the hat spring is close to the inner wall of the needle tubing.
2. the testing needle according to claim 1 for being used for transmission high-frequency signal, it is characterised in that the hat spring is included along institute
Hat spring is stated axially to be divided into the end band for being preced with spring both ends, the middle band between the two end bands and be connected to each described
Hold between band and the middle band and spaced some reeds.
3. the testing needle according to claim 2 for being used for transmission high-frequency signal, it is characterised in that be provided with the reed
First lug boss of the inner wall direction projection to needle tubing.
4. the testing needle according to claim 2 for being used for transmission high-frequency signal, it is characterised in that the reed includes first
Reed and the second reed；
First reed is the first reed of board-type；
Second lug boss of the inner wall direction projection of oriented needle tubing is set on second reed.
5. the testing needle according to claim 4 for being used for transmission high-frequency signal, it is characterised in that every two blocks of first springs
Second reed is provided between piece.
6. the testing needle according to claim 2 for being used for transmission high-frequency signal, it is characterised in that the end of described hat spring one end
Band is close to the tail end, and the end band of the hat spring other end is close to the abutting portion.
7. the testing needle according to claim 1 for being used for transmission high-frequency signal, it is characterised in that first connecting shaft
Outer wall is close to the inner wall of the insulation sleeve.
8. the testing needle according to claim 1 for being used for transmission high-frequency signal, it is characterised in that first connecting shaft with
The test head and the tail end are an integral molding structure；
Second connecting shaft is an integral molding structure with the tail end and the abutting portion.
9. the testing needle according to claim 1 for being used for transmission high-frequency signal, it is characterised in that the tail end with it is described
The openend of needle tubing is riveted.
10. the testing needle according to claim 1 for being used for transmission high-frequency signal, it is characterised in that also covered in the needle tubing
Equipped with spring；
The first end of the spring is close to the abutting portion, and the second end of the spring is close to the closed end of the needle tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396215.XA CN107942109A (en) | 2017-12-21 | 2017-12-21 | A kind of testing needle for being used for transmission high-frequency signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396215.XA CN107942109A (en) | 2017-12-21 | 2017-12-21 | A kind of testing needle for being used for transmission high-frequency signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107942109A true CN107942109A (en) | 2018-04-20 |
Family
ID=61942542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711396215.XA Pending CN107942109A (en) | 2017-12-21 | 2017-12-21 | A kind of testing needle for being used for transmission high-frequency signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107942109A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110208582A (en) * | 2019-07-08 | 2019-09-06 | 深圳市美锐精密电子有限公司 | A kind of PCB detection probe and its manufacturing method |
| CN112014721A (en) * | 2020-09-01 | 2020-12-01 | 珠海景旺柔性电路有限公司 | Universal LCR test board and manufacturing method thereof |
| CN113973507A (en) * | 2020-05-22 | 2022-01-25 | (株)爱云索路深 | Spring needle for super-large current |
| CN117054703A (en) * | 2023-10-12 | 2023-11-14 | 苏州微飞半导体有限公司 | Probe device for IC test |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110208582A (en) * | 2019-07-08 | 2019-09-06 | 深圳市美锐精密电子有限公司 | A kind of PCB detection probe and its manufacturing method |
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| CN117054703B (en) * | 2023-10-12 | 2024-01-09 | 苏州微飞半导体有限公司 | Probe device for IC test |
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