CN206020480U - The four-wire system needle plate structure of less test point - Google Patents
The four-wire system needle plate structure of less test point Download PDFInfo
- Publication number
- CN206020480U CN206020480U CN201620954292.7U CN201620954292U CN206020480U CN 206020480 U CN206020480 U CN 206020480U CN 201620954292 U CN201620954292 U CN 201620954292U CN 206020480 U CN206020480 U CN 206020480U
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- needle plate
- pin
- layer
- interlayer
- wire system
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Abstract
The utility model discloses a kind of four-wire system needle plate structure of less test point, it is desirable to provide a kind of compact conformation, measuring accuracy are high, accuracy rate is high and the four-wire system needle plate structure of the firm efficient less test point of operation.This utility model includes support plate module, upper needle plate module and lower needle plate module, the lower needle plate module is installed on the support plate module, the support plate module is installed on the upper needle plate module, and the lower needle plate module is provided with three pin blocks, is provided with four-wire system claw type pin on the pin block.This utility model is applied to the technical field of Electronic Testing.
Description
Technical field
This utility model is related to the technical field of Electronic Testing, the four-wire system needle plate knot of more particularly to a kind of less test point
Structure.
Background technology
The main body pin support plate mechanism of the two pin mark resistance values of test pad for currently using on the market, be used mostly two-wire system and
Three-wire system principle is carried out the resistance value to the less test point point-to-point transmission of each electronic product and is tested, and is that two-wire system and three-wire system are surveyed below
The introduction of method：
1. existing most widely used have two-wire system method of testing：As shown in figure 1, respectively connecting a wire at the two ends of resistance
To draw the mode of resistance signal two-wire system：This lead method is very simple, but due to connecting wire certainly exist lead electricity
Resistance r, r sizes are relevant with the factor of the material of wire and length and ambient temperature, final testing result R=R0+R1+R2, therefore
It is relatively low and apart from short occasion that this gage system is only applicable to certainty of measurement；
2. existing most widely used also have three-wire system method of testing：As shown in Fig. 2 its principle is the root in resistance
One end connects a lead, and the other end connects the mode of two leads and is referred to as three-wire system, can so make lead adhere to electric bridge separately
Two arms, can preferably offset the impact of lead resistance, and final testing result R=R0+R2 is in industrial stokehold
The most frequently used method of attachment, but the method for attachment still cannot be completely eliminated the Resistance Influence of lead.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, there is provided a kind of compact conformation,
Measuring accuracy is high, accuracy rate is high and the four-wire system needle plate structure of the firm efficient less test point of operation.
The technical scheme adopted by this utility model is：This utility model includes support plate module, upper needle plate module and lower pin
Template die group, the lower needle plate module are installed on the support plate module, and the support plate module is installed on the upper needle plate module,
The lower needle plate module is provided with three pin blocks, is provided with four-wire system claw type pin on the pin block.
Further, the support plate module includes that support plate, four guide pin bushings and data cable plug, four guide pin bushings cover respectively
If being installed in the surrounding of the support plate, the data cable plug is arranged on the support plate.
Further, the upper needle plate module include needle plate on needle plate on ground floor, the second layer, upper needle plate interlayer, the 4th
Needle plate, guide board, upper pcb board on layer, are provided with three upper pcb boards on described 4th layer upper needle plate, on described 4th layer
Needle plate is installed on the upper needle plate interlayer, and on the second layer, needle plate is installed on the bottom of the upper needle plate interlayer, and described
Two layers of upper needle plate are located above the guide board, and on the ground floor, needle plate is embedded in the guide board.
Further, the upper needle plate module also includes long needle one, is equipped with pin mark position and inserts on the upper pcb board
Mouthful, the long needle one is successively through needle plate, the upper pin on needle plate, the second layer on the guide board, the ground floor
Plate interlayer and the 4th layer of upper needle plate, and one end of the long needle one contacted with the pin mark position.
Further, the side opposite the angle of the upper needle plate interlayer is provided with two guide pillars being adapted with two guide pin bushings
One, four ends of the upper needle plate interlayer are provided with contour screw one.
Further, the upper needle plate module also includes alignment pin one, alignment pin two, ball sleeve, ball bushing, ball sleeve
Axle, contour screw two, spring and button block, the upper pcb board are fixedly installed in described 4th layer upper pin by the alignment pin one
On plate, on the upper needle plate interlayer and the ground floor needle plate by two location and installation of the alignment pin on the guide board,
Be arranged with the upper needle plate interlayer four contour screws, two, four ball sleeves, four with the ball sleeve phase
Adaptation the ball bushing and four button blocks being adapted with the ball bushing, the guide board be provided with four with
The ball sleeve axle that the ball sleeve is adapted, the ball sleeve axle is through needle plate on the ground floor and the upper needle plate folder
Together with layer is installed on the ball sleeve, the ball bushing, between the upper needle plate interlayer and the two ends of the guide board
It is provided with the contour screw two and the spring.
Further, the lower needle plate module include needle plate under needle plate under ground floor, the second layer, lower needle plate interlayer, needle plate,
Lower needle plate tailgate and lower pcb board, three pin blocks are fixedly installed under the ground floor on needle plate, pin under the second layer
Plate is arranged at the bottom of needle plate under the ground floor, and under the second layer, needle plate is fixedly installed on the lower needle plate interlayer, institute
State lower needle plate interlayer to be fixedly installed on the needle plate, the lower needle plate tailgate is arranged at the bottom of the needle plate, the lower pin
The bottom surface of plate tailgate is installed with three lower pcb boards, needle plate under needle plate, the second layer under the ground floor, described
Lower needle plate interlayer, the needle plate be provided with the corresponding pin hole in position on the lower needle plate tailgate.
Further, the lower needle plate module also includes long cleoid, tylostyle and long needle two, on the lower pcb board
Be provided with adapter, the long cleoid, the tylostyle and the long needle two respectively successively through needle plate under the ground floor,
The pin hole under the second layer on needle plate, the lower needle plate interlayer, the needle plate and the lower needle plate tailgate, and the length
One end of cleoid, the tylostyle and the long needle two is contacted with the adapter.
Further, it is provided with two to be adapted with guide pin bushing two other described under the ground floor in needle plate side opposite the angle
Guide pillar two, four ends of the lower needle plate interlayer are provided with contour screw three.
Further, the lower needle plate module also includes needle plate alignment pin, straight pin one, straight pin two, three and of straight pin
Pinboard pin, three pin blocks are fixedly connected with needle plate under the ground floor by the needle plate alignment pin, and described first
Under the lower needle plate of layer, the second layer, needle plate is fixedly connected with the lower needle plate interlayer by the straight pin one, the needle plate
Be fixedly connected with the lower needle plate tailgate by the straight pin two, the lower needle plate tailgate by the straight pin three with described
Lower needle plate interlayer is fixedly connected, and the lower pcb board is installed on the lower needle plate tailgate by the pinboard pin.
The beneficial effects of the utility model are：As this utility model is using the design of four-wire system method of testing, this practicality
New including support plate module, upper needle plate module and lower needle plate module, the lower needle plate module is installed on the support plate module, institute
State support plate module to be installed on the upper needle plate module, so the compact conformation of the utility model, sets on the lower needle plate module
There are three pin blocks, on the pin block, be provided with four-wire system claw type pin, described four-wire system method of testing is relative to traditional two wires
System is higher with its measuring accuracy of method of testing of three-wire system and accuracy rate and its operation is also more firm efficient.
Description of the drawings
Fig. 1 is the principle schematic of two-wire system method of testing；
Fig. 2 is the principle schematic of three-wire system method of testing；
Fig. 3 is the principle schematic of four-wire system method of testing；
Fig. 4 is the installation diagram of four-wire system needle plate structure；
Fig. 5 is support plate module explosive view；
Fig. 6 is upper needle plate module explosive view；
Fig. 7 is lower needle plate module explosive view；
Fig. 8 is four-wire system pin group schematic diagram.
Specific embodiment
As shown in figures 3 and 8, in the present embodiment, this utility model includes support plate module 1, upper needle plate module 2 and lower pin
Template die group 3, the lower needle plate module 3 are installed on the support plate module 1, and the support plate module 1 is installed on the upper needle plate mould
In group 2, the lower needle plate module 3 is provided with three pin blocks 4, is provided with four-wire system claw type pin 5, this practicality on the pin block 4
Novel photo increased one group of probe, and use the four-wire system claw type pin 5 for traditional method of testing, this set
Meter method makes this utility model improve its measuring accuracy and accuracy rate, makes the operation of whole equipment more stable, efficient.
In the present embodiment, the support plate module 1 includes 11, four guide pin bushings 12 of support plate and data cable plug 13, four institutes
State guide pin bushing 12 to be arranged in the surrounding for being installed on the support plate 11 respectively, the data cable plug 13 is arranged on the support plate 11,
The support plate 11 is used for carrying 13 loading and unloading of the data cable plug, and fixes the data cable plug 13 in test process
With bear pressure, four guide pin bushings 12 on the support plate 11, upper needle plate module 2 and institute described in precise control during test
The guiding accuracy that lower needle plate module 3 is moved is stated in vertical direction.
In the present embodiment, the upper needle plate module 2 includes on ground floor needle plate 22, upper needle plate on the needle plate 21, second layer
Interlayer 23, the 4th layer of upper needle plate 24, guide board 25, upper pcb board 26, be provided with described 4th layer upper needle plate 24 three described on
Pcb board 26, described 4th layer upper needle plate 24 are installed on the upper needle plate interlayer 23, and on the second layer, needle plate 22 is installed on institute
The bottom of needle plate interlayer 23 is stated, needle plate 22 is located above the guide board 25 on the second layer, needle plate on the ground floor
21 are embedded in the guide board 25.
In the present embodiment, the upper needle plate module 2 also includes long needle one, is equipped with pin mark on the upper pcb board 26
Position and socket 27, the long needle one is successively through pin on needle plate 21, the second layer on the guide board 25, the ground floor
Plate 22, the upper needle plate interlayer 23 and the 4th layer of upper needle plate 24, and one end of the long needle one and pin mark position phase
Contact.
In the present embodiment, on the second layer, the side opposite the angle of needle plate 22 is provided with two and is adapted with the guide pin bushing 12
Guide pillar 1, when the upper needle plate module 2 is pushed, can pass through the institute that two guide pillars 1 insert the support plate module 1
The guiding that 12 endoporus of guide pin bushing carries out accurately in vertical direction is stated, four ends of the upper needle plate interlayer 23 are provided with contour screw one
29.
In the present embodiment, the upper needle plate module 2 also includes alignment pin 1, alignment pin two, ball sleeve 212, ball
Bushing 213, ball sleeve axle 214, contour screw 2 215, spring 216 and button block 217, the upper pcb board 26 is by the positioning
Pin 1 is fixedly installed on described 4th layer upper needle plate 24, and on the upper needle plate interlayer 23 and the ground floor, needle plate 21 leads to
Two location and installation of the alignment pin is crossed on the guide board 25, be arranged with the upper needle plate interlayer 23 four described contour
The ball bushing 213 that 2 215, four, the screw ball sleeve 212, four is adapted with the ball sleeve 212 and four
The button block 217 being adapted with the ball bushing 213, the guide board 25 are provided with four with 212 phase of the ball sleeve
The ball sleeve axle 214 of adaptation, the ball sleeve axle 214 is through needle plate 21 and the upper needle plate interlayer 23 on the ground floor
Together with being installed on the ball sleeve 212, the ball bushing 213, by the ball sleeve 212, the ball bushing 213
Installation make on the ground floor needle plate 21 and the upper needle plate interlayer 23 and the guide board 25 can only in the vertical direction float,
The contour screw 2 215 and the spring 216 are equipped between the upper needle plate interlayer 23 and the two ends of the guide board 25,
The contour screw 2 215 and the spring 216 are made between 25 liang of plates of the upper needle plate interlayer 23 and the guide board vertical
The flying height amount four direction in direction is identical.
In the present embodiment, the lower needle plate module 3 includes under ground floor needle plate 32, lower needle plate under the needle plate 31, second layer
Interlayer 33, needle plate 34, lower needle plate tailgate 35 and lower pcb board 36, three pin blocks 4 are fixedly installed in pin under the ground floor
On plate 31, under the second layer, needle plate 32 is arranged at the bottom of needle plate 31 under the ground floor, and under the second layer, needle plate 32 is solid
Loaded on the lower needle plate interlayer 33, the lower needle plate interlayer 33 is fixedly installed on the needle plate 34, the lower needle plate for Dingan County
Tailgate 35 is arranged at the bottom of the needle plate 34, and the bottom surface of the lower needle plate tailgate 35 is installed with three lower pcb boards
36, needle plate 32 under needle plate 31, the second layer under the ground floor, the lower needle plate interlayer 33, the needle plate 34 and described under
The corresponding pin hole in position is provided with needle plate tailgate 35.
In the present embodiment, the lower needle plate module 3 also includes long cleoid 37, tylostyle 38 and long needle 2 39, described
Be provided with adapter 310 on lower pcb board 36, the long cleoid 37, the tylostyle 38 and the long needle 2 39 respectively by
Layer is through needle plate 32 under needle plate 31, the second layer under the ground floor, the lower needle plate interlayer 33, the needle plate 34 and described
The pin hole on lower needle plate tailgate 35, and one end of the long cleoid 37, the tylostyle 38 and the long needle 2 39 is equal
Contact with the adapter 310.
In the present embodiment, two are provided with 31 side opposite the angle of needle plate under the ground floor with two other described guide pin bushing 12
The guide pillar 2 311 being adapted, when pressing on the lower needle plate module 3, inserts the support plate mould by two guide pillars 2 311
12 endoporus of the guide pin bushing of group 1 carries out the guiding in precise vertical direction；Four ends of the lower needle plate interlayer 33 are provided with contour spiral shell
Silk 3 312, the contour screw 3 312, is used for the entirely lower pin block module 3 is locked in the cylinder that do not show and installs module
On, and make the gap value four direction that vertical direction floats between two plates identical
In the present embodiment, the lower needle plate module 3 also include needle plate alignment pin 313, straight pin 1, straight pin two,
Straight pin 3 315 and pinboard pin 316, three pin blocks 4 are by the needle plate alignment pin 313 and pin under the ground floor
Plate 31 is fixedly connected, under the ground floor under needle plate 31, the second layer needle plate 32 by the straight pin 1 with described
Lower needle plate interlayer 33 is fixedly connected, and the needle plate 34 is fixedly connected with the lower needle plate tailgate 35 by the straight pin two, institute
State lower needle plate tailgate 35 to be fixedly connected with the lower needle plate interlayer 33 by the straight pin 3 315, the lower pcb board 36 leads to
Cross the pinboard pin 316 to be installed on the lower needle plate tailgate 35.
The four-wire system method of testing of the design：The mode for respectively connecting two wires at the root two ends of resistance is referred to as four-wire system,
Wherein two leads provide constant current I for thermal resistance, R is converted into voltage signal U, then U is caused by another two leads
Secondary meter.Because being the direct starting point extraction voltage signal from resistance, it is seen that this mode is completely eliminated the resistance of lead
Affect, final testing result R=R0, so four-wire system method of testing is higher for the measuring accuracy of traditional method of testing.
This utility model is applied to the technical field of Electronic Testing.
Although embodiment of the present utility model is described with practical solution, do not constitute and this utility model is contained
The restriction of justice, for those skilled in the art, according to this specification to the modification of its embodiment and the group with other schemes
Conjunction will be apparent from.
Claims (10)
1. a kind of four-wire system needle plate structure of less test point, it is characterised in that：Including support plate module（1）, upper needle plate module（2）
With lower needle plate module（3）, the lower needle plate module（3）It is installed on the support plate module（1）On, the support plate module（1）Install
In the upper needle plate module（2）On, the lower needle plate module（3）It is provided with three pin blocks（4）, the pin block（4）On be respectively provided with
There is four-wire system claw type pin（5）.
2. the four-wire system needle plate structure of less test point according to claim 1, it is characterised in that：The support plate module
（1）Including support plate（11）, four guide pin bushings（12）And data cable plug（13）, four guide pin bushings（12）It is arranged respectively and is installed on institute
State support plate（11）Surrounding on, the data cable plug（13）It is arranged at the support plate（11）On.
3. the four-wire system needle plate structure of less test point according to claim 2, it is characterised in that：The upper needle plate module
（2）Including needle plate on ground floor（21）, needle plate on the second layer（22）, upper needle plate interlayer（23）, the 4th layer of upper needle plate（24）, guide pin
Plate（25）, upper pcb board（26）, described 4th layer upper needle plate（24）On three upper pcb boards are installed（26）, described 4th layer
Upper needle plate（24）It is installed on the upper needle plate interlayer（23）On, needle plate on the second layer（22）It is installed on the upper needle plate interlayer
（23）Bottom, needle plate on the second layer（22）It is located at the guide board（25）Top, needle plate on the ground floor（21）Edge
It is embedded in the guide board（25）Interior.
4. the four-wire system needle plate structure of less test point according to claim 3, it is characterised in that：The upper needle plate module
（2）Also include long needle one, the upper pcb board（26）On be equipped with pin mark position and socket（27）, the long needle one successively wears
Cross the guide board（25）, needle plate on the ground floor（21）, needle plate on the second layer（22）, the upper needle plate interlayer（23）
With described 4th layer upper needle plate（24）, and one end of the long needle one contacted with the pin mark position.
5. the four-wire system needle plate structure of less test point according to claim 3, it is characterised in that：Pin on the second layer
Plate（22）Side opposite the angle be provided with two with two guide pin bushings（12）The guide pillar one being adapted（28）, the upper needle plate interlayer
（23）Four ends be provided with contour screw one（29）.
6. the four-wire system needle plate structure of less test point according to claim 3, it is characterised in that：The upper needle plate module
（2）Also include alignment pin one（210）, alignment pin two, ball sleeve（212）, ball bushing（213）, ball sleeve axle（214）, contour
Screw two（215）, spring（216）And button block（217）, the upper pcb board（26）By the alignment pin one（210）Fixed installation
In described 4th layer upper needle plate（24）On, the upper needle plate interlayer（23）With needle plate on the ground floor（21）By the positioning
Two location and installation of pin is in the guide board（25）On, the upper needle plate interlayer（23）On be arranged with four contour screws two
（215）, four ball sleeves（212）, four with the ball sleeve（212）The ball bushing being adapted（213）With four
Individual with the ball bushing（213）The button block being adapted（217）, the guide board（25）Four are provided with the ball
Set（212）The ball sleeve axle being adapted（214）, the ball sleeve axle（214）The needle plate through on the ground floor（21）With
The upper needle plate interlayer（23）With the ball sleeve（212）, the ball bushing（213）It is installed on together, the upper needle plate folder
Layer（23）With the guide board（25）Two ends between be equipped with the contour screw two（215）With the spring（216）.
7. the four-wire system needle plate structure of less test point according to claim 2, it is characterised in that：The lower needle plate module
（3）Including needle plate under ground floor（31）, needle plate under the second layer（32）, lower needle plate interlayer（33）, needle plate（34）, lower needle plate tailgate
（35）With lower pcb board（36）, three pin blocks（4）The ground floor under needle plate is fixedly installed in（31）On, described second
The lower needle plate of layer（32）It is arranged at needle plate under the ground floor（31）Bottom, needle plate under the second layer（32）It is fixedly installed in institute
State lower needle plate interlayer（33）On, the lower needle plate interlayer（33）It is fixedly installed in the needle plate（34）On, the lower needle plate tailgate
（35）It is arranged at the needle plate（34）Bottom, the lower needle plate tailgate（35）Bottom surface be installed with three lower PCB
Plate（36）, needle plate under the ground floor（31）, needle plate under the second layer（32）, the lower needle plate interlayer（33）, the needle plate
（34）With the lower needle plate tailgate（35）On be provided with the corresponding pin hole in position.
8. the four-wire system needle plate structure of less test point according to claim 7, it is characterised in that：The lower needle plate module
（3）Also include long cleoid（37）, tylostyle（38）With long needle two（39）, the lower pcb board（36）On be provided with adapter
（310）, the long cleoid（37）, the tylostyle（38）With the long needle two（39）Respectively successively through under the ground floor
Needle plate（31）, needle plate under the second layer（32）, the lower needle plate interlayer（33）, the needle plate（34）With the lower needle plate tailgate
（35）On the pin hole, and the long cleoid（37）, the tylostyle（38）With the long needle two（39）One end with
The adapter（310）Contact.
9. the four-wire system needle plate structure of less test point according to claim 7, it is characterised in that：Pin under the ground floor
Plate（31）Two are provided with side opposite the angle with two other described guide pin bushing（12）The guide pillar two being adapted（311）, the lower needle plate
Interlayer（33）Four ends be provided with contour screw three（312）.
10. the four-wire system needle plate structure of less test point according to claim 7, it is characterised in that：The lower needle plate mould
Group（3）Also include needle plate alignment pin（313）, straight pin one（314）, straight pin two, straight pin three（315）With pinboard pin
（316）, three pin blocks（4）By the needle plate alignment pin（313）With needle plate under the ground floor（31）It is fixedly connected, institute
State needle plate under ground floor（31）, needle plate under the second layer（32）Pass through the straight pin one（314）Press from both sides with the lower needle plate
Layer（33）It is fixedly connected, the needle plate（34）By the straight pin two and the lower needle plate tailgate（35）It is fixedly connected, described
Lower needle plate tailgate（35）By the straight pin three（315）With the lower needle plate interlayer（33）It is fixedly connected, the lower pcb board
（36）Pass through the pinboard pin（316）It is installed on the lower needle plate tailgate（35）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954292.7U CN206020480U (en) | 2016-08-26 | 2016-08-26 | The four-wire system needle plate structure of less test point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954292.7U CN206020480U (en) | 2016-08-26 | 2016-08-26 | The four-wire system needle plate structure of less test point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206020480U true CN206020480U (en) | 2017-03-15 |
Family
ID=58252085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620954292.7U Expired - Fee Related CN206020480U (en) | 2016-08-26 | 2016-08-26 | The four-wire system needle plate structure of less test point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206020480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630539A (en) * | 2020-12-14 | 2021-04-09 | 深圳市燕麦科技股份有限公司 | Test needle die and test device for FPC performance test |
-
2016
- 2016-08-26 CN CN201620954292.7U patent/CN206020480U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630539A (en) * | 2020-12-14 | 2021-04-09 | 深圳市燕麦科技股份有限公司 | Test needle die and test device for FPC performance test |
| CN112630539B (en) * | 2020-12-14 | 2024-03-29 | 深圳市燕麦科技股份有限公司 | Test pin die and test device for FPC performance test |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 |