CN104391238B - A kind of probe and test equipment - Google Patents
A kind of probe and test equipment Download PDFInfo
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- CN104391238B CN104391238B CN201410725874.3A CN201410725874A CN104391238B CN 104391238 B CN104391238 B CN 104391238B CN 201410725874 A CN201410725874 A CN 201410725874A CN 104391238 B CN104391238 B CN 104391238B
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- needle body
- frustum
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Abstract
The present invention provides a kind of probe and test equipment.The probe includes needle body and signal wire, and signal wire includes core and is wrapped in the insulating barrier of core periphery, and the first end of needle body is connected with core, and the second end of needle body is exposed to be used to test outside, in addition to clamp structure, for clamping needle body.The probe is by setting clamp structure, needle body is set to be clamped firmly, so that needle body is not easy to occur pricking unstable or race pin phenomenon in test process, it is ensured that test signal can be introduced normally, and then the accuracy of signal testing is not only ensured, and also improve the efficiency of signal testing.Meanwhile, the clamp structure makes needle body regulation get up also more convenient.
Description
Technical field
The present invention relates to semi-conductive electrical technical field of measurement and test, in particular it relates to a kind of probe and test equipment.
Background technology
In semiconductor electrical performance testing and the electricity of thin-film transistor LCD device array substrate (TFT LCD Array)
It is frequently necessary to use the terminal that probe unit carrys out connecting test instrument during performance test.
As shown in figure 1, probe is typically made up of needle body 1 and signal wire 2.Signal wire 2 includes three parts：Outermost metal screen
Cover layer 23, intermediate insulating layer 22, the metal-cored i.e. core 21 of innermost layer.One end of needle body 1 and the metal-cored company of innermost layer of signal wire 2
Connect, the other end of needle body 1 is exposed outside, for the test signal of signal wire 2 to be introduced into test position.
Metal screen layer 23 wraps up whole signal wire 2 to exclude the interference of other signals, metal-cored namely core 21
It is usually hollow, primarily to needle body 1 is inserted into the inside and fixed.Generally, hollow metal-cored internal diameter is equal to needle body 1
Diameter.Probe by signal wire 2 test signal introduce test position during, it usually needs by needle body 1 it is exposed
Outer one end penetrates test position so that needle body 1 be easy to during multiple penetrate with it is metal-cored between produce and rub
Wipe, thus cause repeatedly penetrate after needle body 1 and it is metal-cored between connection loosen, make needle body 1 when penetrating test position very
Easily occur pricking unstable and run pin phenomenon, and then it is inaccurate to cause test signal to introduce bad and test；Meanwhile, needle body 1 pricks shakiness
Or race pin can also have a strong impact on testing efficiency.
The content of the invention
There is provided a kind of probe and test equipment for above-mentioned technical problem present in prior art by the present invention.The probe
Needle body can be made clamped firm, so that needle body is not easy to occur pricking shakiness in test process or runs pin phenomenon, it is ensured that test
Signal can be introduced normally, and then not only ensure the accuracy of signal testing, and also improve the efficiency of signal testing.
The present invention provides a kind of probe for electrical testing, including needle body and signal wire, and the signal wire includes core
With the insulating barrier for being wrapped in the core periphery, the first end of the needle body is connected with the core, the second end of the needle body
It is exposed to be used to test outside, in addition to clamp structure, for clamping the needle body.
Preferably, the core is to be wrapped in the hollow cylinder that can be conductive inside the insulating barrier, the hollow cylinder it is interior
Footpath is equal to the diameter of the needle body；
The clamp structure includes frustum, and the frustum offers first through hole, the first end of the needle body along its axis
It is inserted into through the first through hole in the hollow cylinder, the second end of the needle body is exposed to outside the frustum and close to described
The larger bottom surface of the area of frustum；The diameter of the first through hole is less than or equal to the diameter of the needle body；
Bearing of trend of the frustum along its axis offers the breach through its height in side, the breach with it is described
First through hole insertion.
Preferably, the clamp structure also includes pressure ring and spring, and the pressure ring and the spring are set in the cone
On the side of platform, the internal diameter of the pressure ring and the spring is equal, and the diameter ＜ of the less upper bottom surface of area of the frustum
The diameter of the larger bottom surface of the area of frustum described in the internal diameter ＜ of the pressure ring and the spring.
Preferably, the pressure ring is than the spring closer to the bottom surface of the frustum, and the spring is in non-stress
The height of the axis direction of frustum described in lower edge be more than the frustum height, one end of remote the pressure ring of the spring and
One end end face of the insulating barrier is in contact.
Preferably, in addition to the outer cover that is located at outside the clamp structure, the second through hole, institute are offered inside the outer cover
The second end for stating needle body is exposed outside the outer cover through second through hole；
The inner wall of end of the close needle body first end of second through hole is provided with the first screw thread, the insulating barrier
The second screw thread is provided with one end lateral surface touched with the spring interface, first screw thread is mutually fitted with second screw thread
Match somebody with somebody.
Preferably, the signal wire also includes metal screen layer, and the metal screen layer is wrapped in the insulating barrier periphery,
For shielding external interference signal；
The end at the outer close end of needle body second for covering on second through hole is provided with fixed cylinder, the needle body
The second end it is exposed outside the fixed cylinder through the fixed cylinder, the diameter of the fixed cylinder is equal to the diameter of the needle body.
Preferably, the outer cover and the fixed cylinder use isolation material, and the pressure ring and the spring use metal
Material.
Preferably, the frustum uses rubber or plastic material.
The present invention also provides a kind of test equipment, including above-mentioned probe.
Beneficial effects of the present invention：Probe provided by the present invention, by setting clamp structure, enables needle body to be clamped jail
Gu, so that needle body is not easy to occur pricking unstable or race pin phenomenon in test process, it is ensured that test signal can be introduced normally, be entered
And the accuracy of signal testing is not only ensured, and also improve the efficiency of signal testing.Meanwhile, the clamp structure makes needle body
Regulation is got up also more convenient.
Test equipment provided by the present invention, by using above-mentioned probe, improve the test equipment testing efficiency and
Testing precision.
Brief description of the drawings
Fig. 1 is the structure sectional view of prior art middle probe；
Fig. 2 is the structure sectional view of the middle probe of the embodiment of the present invention 1；
Fig. 3 is the structural representation of frustum in Fig. 2；
Fig. 4 is the structural representation of clamp structure in Fig. 2；
Fig. 5 is outer cover and the structural representation of fixed cylinder in Fig. 2.
Description of reference numerals therein：
1. needle body；11. first end；12. the second end；2. signal wire；21. core；22. insulating barrier；221. second screw threads；
23. metal screen layer；3. clamp structure；31. frustum；311. first through hole；312. bottom surface；313. breach；314. upper bottom surface；
32. pressure ring；33. spring；4. outer cover；41. the second through hole；411. first screw threads；5. fixed cylinder.
Embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific implementation
A kind of probe and test equipment that mode is provided the present invention are described in further detail.
Embodiment 1：
The present embodiment provides a kind of probe for electrical testing, as shown in Figure 2-5, including needle body 1 and signal wire 2, letter
Number line 2 includes core 21 and is wrapped in the insulating barrier 22 of the periphery of core 21, and the first end 11 of needle body 1 is connected with core 21, needle body 1
The second end 12 it is exposed outside, for testing, in addition to clamp structure 3, for clamping needle body 1.
The setting of clamp structure 3, can make needle body 1 clamped firm, so that needle body 1 is not easy to occur in test process
Prick unstable or race pin phenomenon, it is ensured that test signal can be introduced normally, and then not only ensure the accuracy of signal testing, but also
Improve the efficiency of signal testing.
In the present embodiment, core 21 is to be wrapped in the hollow cylinder that can be conductive inside insulating barrier 22, internal diameter of hollow cylinder etc.
In the diameter of needle body 1.So it is able to ensure that the electric connection of needle body 1 and core 21.Clamp structure 3 includes frustum 31, frustum 31
First through hole 311 is offered along its axis, the first end 11 of needle body 1 is inserted into hollow cylinder through first through hole 311, needle body 1
The second end 12 be exposed to the bottom surface 312 that frustum 31 is outer and area of close to frustum 31 is larger；The diameter of first through hole 311 is small
In the diameter equal to needle body 1.Wherein, frustum 31 uses rubber or plastic material.It is arranged such, frustum 31 can be made to needle body 1
Clamping is tighter, makes needle body 1 be not easy to prick unstable or race pin.
As shown in figure 3, bearing of trend of the frustum 31 along its axis offers the breach 313 through its height in side, lack
Mouth 313 and the insertion of first through hole 311.The setting of breach 313, can make needle body 1 more convenient in dismounting, while also favourable
In the regulation of the exposed length in outer portion of needle body 1.
It should be noted that frustum 31 can also have certain elastic isolation material using other.
In the present embodiment, as shown in figure 4, clamp structure 3 also includes pressure ring 32 and spring 33, pressure ring 32 and spring 33 cover
On the side for being located at frustum 31, pressure ring 32 is equal with the internal diameter of spring 33, and the less upper bottom surface 314 of area of frustum 31 is straight
The diameter of the larger bottom surface 312 of the areas of the internal diameter ＜ frustums 31 of footpath ＜ pressure rings 32 and spring 33.Wherein, pressure ring 32 and spring
33 use metal material.It is arranged such so that pressure ring 32 and spring 33 will not be passed from thicker one end of frustum 31.Meanwhile,
When spring 33 and pressure ring 32 are by pressure towards the thicker one end of frustum 31, spring 33 and pressure ring 32 can press frustum 31
Tightly, and reduce the A/F of breach 313 of the side of frustum 31, so that the integral diameter of frustum 31 accordingly reduces, frustum
Overall reduce of 31 diameters can reduce the internal diameter of its internal first through hole 311, so make frustum 31 to the clamping of needle body 1 more
Firmly.
In the present embodiment, pressure ring 32 than spring 33 closer to frustum 31 bottom surface 312, because pressure ring 32 is compared to spring
33 retractility is smaller, thus the bottom surface 312 of pressure ring 32 closer to frustum 31 can make frustum 31 to the clamping effect of needle body 1 more
It is good.Spring 33 under non-stress along frustum 31 axis direction height be more than frustum 31 height, spring 33 it is remote
One end of pressure ring 32 is in contact with one end end face of insulating barrier 22.
In the present embodiment, as shown in figure 5, probe also includes opening up inside the outer cover 4 being located at outside clamp structure 3, outer cover 4
There is the second through hole 41, the second end 12 of needle body 1 is exposed outside outer cover 4 through the second through hole 41.The close needle body 1 of second through hole 41
The inner wall of end of first end 11 is provided with the first screw thread 411, one end lateral surface being in contact with spring 33 of insulating barrier 22 and set
The second screw thread 221 is equipped with, the first screw thread 411 is adapted with the second screw thread 221.Wherein, outer cover 4 uses isolation material.
Being adapted to screw of first screw thread 411 and the second screw thread 221 can make outer cover 4 and insulating barrier 22 be connected with each other and twist
Tightly, during outer cover 4 and insulating barrier 22 are tightened by screw thread, one end end face meeting being in contact with spring 33 of insulating barrier 22
Spring 33 is compressed towards the direction of bottom surface 312 of frustum 31, until one end end face compressed and the frustum 31 of spring 33 is upper
Bottom surface 314 is concordant.Now, spring 33 and pressure ring 32 can compress frustum 31, and make frustum 31 to the firm grip of needle body 1.
In the present embodiment, signal wire 2 also includes metal screen layer 23, and metal screen layer 23 is wrapped in the periphery of insulating barrier 22,
For shielding external interference signal.
Outer cover 4 is provided with fixed cylinder 5, the second end of needle body 1 in the end at the end 12 of close needle body 1 second of the second through hole 41
12 is exposed outside fixed cylinder 5 through fixed cylinder 5, and the diameter of fixed cylinder 5 is equal to the diameter of needle body 1.Wherein, fixed cylinder 5 is using exhausted
Edge material.The setting of fixed cylinder 5 can make needle body 1 be not easy to run pin, so as to avoid the metal screen layer of needle body 1 and signal wire 2
Contact between 23, and then avoid needle body 1 extraneous interference signal is introduced to test position, disturbed test.
When the exposed length outside fixed cylinder 5 of needle body 1 needs regulation, can manually by outer cover 4 and insulating barrier 22 it
Between threaded connection rotation loosen, with the loosening connected therebetween, spring 33 is corresponding to the pressure of frustum 31 with pressure ring 32
Reduce, correspondingly, the diameter of the first through hole 311 in frustum 31 accordingly increases, at this point it is possible to manually regulation needle body 1 it is exposed
Outer length, after regulating, rotates fastening by outer cover 4 and insulating barrier 22 again.So needle body 1 install it is fixed and
Regulation, substantially increases the efficiency of signal testing.
Embodiment 2：
The present embodiment provides a kind of probe for electrical testing, as different from Example 1, the clamping in the present embodiment
Structure only includes frustum, not including pressure ring and spring.The structure of wherein frustum is in the same manner as in Example 1.
Because frustum uses rubber or plastic material, with certain elasticity, so can keep clamping to needle body, make pin
Body is not easy to prick unstable or race pin.
The other structures and material of the present embodiment middle probe are in the same manner as in Example 1, and here is omitted.
Embodiment 1-2 beneficial effect：Probe in embodiment 1-2, by setting clamp structure, enables needle body to be clamped
Firmly, so that needle body is not easy to occur pricking unstable or race pin phenomenon in test process, it is ensured that test signal can be introduced normally,
And then the accuracy of signal testing is not only ensured, and also improve the efficiency of signal testing.Meanwhile, the clamp structure makes pin
Body regulation gets up also more convenient.
Embodiment 3：
The present embodiment provides a kind of test equipment, including embodiment 1-2 the probe in any one.
By using probes of the embodiment 1-2 in any one, the testing efficiency and test essence of the test equipment are improved
Exactness.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, but the invention is not limited in this.For those skilled in the art, the essence of the present invention is not being departed from
In the case of refreshing and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.
Claims (7)
1. a kind of probe for electrical testing, including needle body and signal wire, the signal wire include core and are wrapped in described
The insulating barrier of core periphery, the first end of the needle body is connected with the core, and the second end of the needle body is exposed to be used for outside
Test, it is characterised in that also including clamp structure, for clamping the needle body；
The core is to be wrapped in the hollow cylinder that can be conductive inside the insulating barrier, and the internal diameter of the hollow cylinder is equal to described
The diameter of needle body；
The clamp structure includes frustum, and the frustum offers first through hole along its axis, and the first end of the needle body is passed through
The first through hole is inserted into the hollow cylinder, and the second end of the needle body is exposed to outside the frustum and close to the frustum
The larger bottom surface of area；The diameter of the first through hole is less than or equal to the diameter of the needle body；
Bearing of trend of the frustum along its axis offers the breach through its height, the breach and described first in side
Through hole insertion；
The clamp structure also includes pressure ring and spring, and the pressure ring and the spring are set on the side of the frustum,
The internal diameter of the pressure ring and the spring is equal, and pressure ring and institute described in the diameter ＜ of the less upper bottom surface of area of the frustum
State the diameter of the larger bottom surface of area of frustum described in the internal diameter ＜ of spring.
2. probe according to claim 1, it is characterised in that the pressure ring is than the spring closer under the frustum
Bottom surface, the spring is more than the height of the frustum in the height of the axis direction of frustum described in non-stress lower edge, described
One end of the remote pressure ring of spring is in contact with one end end face of the insulating barrier.
3. probe according to claim 2, it is characterised in that also including the outer cover being located at outside the clamp structure, institute
State and the second through hole is offered inside outer cover, the second end of the needle body is exposed outside the outer cover through second through hole；
The inner wall of end of the close needle body first end of second through hole is provided with the first screw thread, the insulating barrier with institute
State and be provided with the second screw thread on the tactile one end lateral surface of spring interface, first screw thread is adapted with second screw thread.
4. probe according to claim 3, it is characterised in that the signal wire also includes metal screen layer, the metal
Screen layer is wrapped in the insulating barrier periphery, for shielding external interference signal；
The end at the outer close end of needle body second for covering on second through hole is provided with fixed cylinder, and the of the needle body
Two ends are exposed outside the fixed cylinder through the fixed cylinder, and the diameter of the fixed cylinder is equal to the diameter of the needle body.
5. probe according to claim 4, it is characterised in that the outer cover and the fixed cylinder use isolation material,
The pressure ring and the spring use metal material.
6. the probe according to claim 1-5 any one, it is characterised in that the frustum uses rubber or plastics material
Matter.
7. a kind of test equipment, it is characterised in that including the probe described in claim 1-6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725874.3A CN104391238B (en) | 2014-12-03 | 2014-12-03 | A kind of probe and test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725874.3A CN104391238B (en) | 2014-12-03 | 2014-12-03 | A kind of probe and test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104391238A CN104391238A (en) | 2015-03-04 |
| CN104391238B true CN104391238B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410725874.3A Active CN104391238B (en) | 2014-12-03 | 2014-12-03 | A kind of probe and test equipment |
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| CN (1) | CN104391238B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092908B (en) * | 2015-06-04 | 2017-11-14 | 合肥京东方光电科技有限公司 | One kind test probe and test device |
| CN206892276U (en) * | 2017-07-12 | 2018-01-16 | 惠科股份有限公司 | A kind of circuit board |
| CN111025105B (en) * | 2019-12-27 | 2021-11-16 | 安徽明诚电力设备安装有限公司 | Ring main unit equipment sleeve withstand voltage test device |
| CN111458540A (en) * | 2020-05-22 | 2020-07-28 | 上海电连旭晟通信技术有限公司 | Connecting device and electronic apparatus |
| CN111969097B (en) * | 2020-10-20 | 2021-04-20 | 深圳市Tcl高新技术开发有限公司 | LED chip test fixture, method and system and manufacturing method of test fixture |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267733C (en) * | 2000-05-01 | 2006-08-02 | 日本发条株式会社 | Conductive contactor and electric probe unit |
| CN2517131Y (en) * | 2001-12-31 | 2002-10-16 | 浙江久立耐火电缆股份有限公司 | Cable terminal binding post |
| JP2003307552A (en) * | 2002-04-17 | 2003-10-31 | Tokyo Electron Ltd | Contact body for signal detection and signal calibrating device |
| CN101169455B (en) * | 2007-10-09 | 2010-10-06 | 番禺得意精密电子工业有限公司 | Probe |
| CN101545926B (en) * | 2008-03-25 | 2011-05-11 | 旺矽科技股份有限公司 | Probe testing device |
| CN202905961U (en) * | 2012-11-23 | 2013-04-24 | 戴敏武 | Clamping sleeve of combined-type terminal |
| CN203288680U (en) * | 2013-05-13 | 2013-11-13 | 张余 | Connecting terminal of storage battery |
| CN203337694U (en) * | 2013-05-27 | 2013-12-11 | 深圳市策维科技有限公司 | Test probe |
| CN203870132U (en) * | 2014-05-26 | 2014-10-08 | 京东方科技集团股份有限公司 | Probe connection rod, probe device and electrical test device |
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2014
- 2014-12-03 CN CN201410725874.3A patent/CN104391238B/en active Active
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