CN107782932A - A kind of detachable test needle plate for needle-bar - Google Patents
A kind of detachable test needle plate for needle-bar Download PDFInfo
- Publication number
- CN107782932A CN107782932A CN201710917151.7A CN201710917151A CN107782932A CN 107782932 A CN107782932 A CN 107782932A CN 201710917151 A CN201710917151 A CN 201710917151A CN 107782932 A CN107782932 A CN 107782932A
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- CN
- China
- Prior art keywords
- underframe
- heart
- matter
- disk body
- needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
- G01R1/07342—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card the body of the probe being at an angle other than perpendicular to test object, e.g. probe card
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The invention discloses a kind of detachable test needle plate for needle-bar, including fixed underframe, fixed underframe includes upper underframe and lower underframe, being fixedly clamped between upper underframe and lower underframe has test dials, test dials includes trying to get to the heart of a matter and disk body, try to get to the heart of a matter and be made of ambroin, and the edge tried to get to the heart of a matter is crimped between underframe and lower underframe, disk body is plugged on try to get to the heart of a matter on, disk body and detection circuit is installed between trying to get to the heart of a matter, the upper surface of disk body is equidistantly installed with test fingers, and the end of test fingers is welded on disk body lower surface, and is connected to detection circuit by wire；Detection circuit includes sensor group and microprocessor, the output detection signal of sensor group is to microprocessor, microprocessor is built-in with a/d converter and RS232 converters, and the interaction end of RS232 converters is connected with Ethernet control, and ethernet controller is connected to host computer by netting twine.The present invention can be removed and installed easily, easy to use and flexible, and Detection results are good.
Description
Technical field
The present invention relates to test needle bed field, specially a kind of detachable test needle plate for needle-bar.
Background technology
The main purpose of microelectronic product test, is to ensure quality in the fabrication process.In manufacture final stage, or
Deliver in user's hand, just the defects of discovery finished product, time and the expense of maintenance certainly will be increased.General institute is faulty, can use
On-line testing (ICT) technology differentiates in test step.In ICT measurements, the probe array of special Bed of nails, with circuit
The welding zone contact of test node on plate (PCB), and discrete isolation test is carried out with hundreds of millivolts of voltage sum milliampere electric currents, so as to
Even weldering, wiring board open the failures such as short circuit for the accurate neglected loading for judging institute's dress component, misloading, parameter value deviation, solder joint.
A kind of Publication No. 205049623U test needle bed for circuit board, including detection pin, described testing needle
Bed also includes printed circuit board (PCB) and fixed structure, the grafting for the circuit board for being provided with and being tested on described printed circuit board (PCB)
The adaptable detecting pinhole of pin hole；The detection pin being plugged in the detecting pinhole, welded by one end in described printing electricity
On the plate of road；In the test process of circuit board, described detection pin is supported by described fixed structure, is fixed and spacing；Should
Although device can realize the general test operation to circuit board, the probe location of the device is fixed, it is impossible to freely
Removed and installed, once the component wear of the inside or failure, replace cumbersome.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of detachable test needle plate for needle-bar, bag
Fixed underframe is included, the fixed underframe includes upper underframe and lower underframe, and being fixedly clamped between the upper underframe and lower underframe has survey
Test point disk, the test dials includes trying to get to the heart of a matter and disk body, described try to get to the heart of a matter are made of ambroin, and the edge tried to get to the heart of a matter is crimped on
Between upper underframe and lower underframe, the disk body is cylindrical tube shape structure, disk body is plugged on try to get to the heart of a matter on, the disk body and between trying to get to the heart of a matter
Hollow structure is formed, inside is provided with detection circuit, and the upper surface of disk body is equidistantly installed with test fingers, the test
The end of stitch is welded on disk body lower surface, and is connected to detection circuit by wire；The detection circuit includes sensor group
And microprocessor, the output detection signal of the sensor group to microprocessor, the microprocessor be built-in with a/d converter and
RS232 converters, the interaction end of the RS232 converters are connected with Ethernet control, and the ethernet controller passes through netting twine
It is connected to host computer.
As a kind of preferable technical scheme of the present invention, the upper underframe is cirque structure, on the annulus frame of upper underframe
Spring holder nail is plugged with equal intervals.
As a kind of preferable technical scheme of the present invention, circular positioning has been dug in the lower underframe and the edge tried to get to the heart of a matter
Hole, the size of the circular locating openings match with position with spring holder nail.
As a kind of preferable technical scheme of the present invention, the upper cutting of trying to get to the heart of a matter has fixing groove, and the fixing groove is annulus
Shape, the thickness of annulus are consistent with the lower edge thickness of disk body.
As a kind of preferable technical scheme of the present invention, the microprocessor uses STM32 family chips, and microprocessor
A/d converter and sensor group between be also associated with optical coupling isolator.
As a kind of preferable technical scheme of the present invention, the sensor group includes current sensor and voltage sensor,
And current sensor and voltage sensor form by high frequency group and low frequency group.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention is plugged in circular locating openings for spring holder nail, realized to solid by setting fixed underframe
Determine the installation of underframe, while disk body fixed using circular mounting hole, the disk body with mutually being fixed by fixed groove between trying to get to the heart of a matter,
Whole device installing/dismounting is very convenient；
(2) present invention detects circuit by setting, and difference is gathered respectively using the high frequency group in sensor group and low frequency group
The output signal of frequency circuit-under-test plate, the stability of collection information is improved using optical coupling isolator, with reference to ethernet controller
Realization communicates with the data of host computer, so as to easily carry out follow-up data processing.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is overlooking the structure diagram of the present invention；
Fig. 3 is the structured flowchart of detection circuit.
In figure：1- fixes underframe；2- tests dials；3- detects circuit；
The upper underframes of 101-；Underframe under 102-；103- spring holders are followed closely；104- circular locating openings；
201- tries to get to the heart of a matter；202- disk bodies；203- test fingers；204- fixing grooves；
301- sensor groups；302- microprocessors；303- optical coupling isolators；304-AD converters；305-RS232 is changed
Device；306- ethernet controllers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.
The direction and position term that the present invention is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", " interior ", "
Outside ", " side " etc., only it is direction and position with reference to annexed drawings.Therefore, the direction and position term used is to illustrate
And understand the present invention, and it is not used to the limitation present invention.
Embodiment：
As depicted in figs. 1 and 2, the invention provides a kind of detachable test needle plate for needle-bar, including fixed underframe
1, fixed underframe 1 is used to be fixed on needle-bar, and so as to fixed whole test needle plate, the fixed underframe 1 includes the upper He of underframe 101
Lower underframe 102, being fixedly clamped between the upper underframe 101 and lower underframe 102 has test dials 2, and the test dials 2 includes disk
Bottom 201 and disk body 202, described try to get to the heart of a matter 201 are made of ambroins, and try to get to the heart of a matter 201 edge be crimped on underframe 101 and under
Between underframe 102, the disk body 202 is cylindrical tube shape structure, and disk body 202, which is plugged on, tries to get to the heart of a matter on 201, and the upper underframe 101 is
Cirque structure, spring holder nail 103 is plugged with the annulus frame of upper underframe 101 at equal intervals；The lower underframe 102 and try to get to the heart of a matter
Circular locating openings 104 have been dug in 201 edge, the sizes of the circular locating openings 104 with position and spring holder
Nail 103 matches；In use, being close to needle-bar placement with upper underframe 101 first by lower underframe 102, then test dials 2 is put into
Between upper underframe 101 and lower underframe 102, by the circular locating openings 104 tried to get to the heart of a matter on 201 and the circular locating openings on lower underframe 102
104 alignment, then spring holder nail 103 is depressed to through circular locating openings 104, form a fixed connection structure, so as to real
Existing installation operation；
It is described try to get to the heart of a matter to dig on 201 have fixing groove 204, the fixing groove 204 is annular shape, the thickness and disk body of annulus
202 lower edge thickness is consistent, the disk body 201 can directly be plugged on try to get to the heart of a matter 201 fixing groove 204 in, when not in use
Dismounting can easily be picked up；
The disk body 202 and try to get to the heart of a matter hollow structure formed between 201, inside is provided with detection circuit 3, disk body 202 it is upper
Surface is equidistantly installed with test fingers 203, and the end of the test fingers 203 is welded on the lower surface of disk body 202, and logical
Cross wire and be connected to detection circuit 3, the test fingers 203 are used to be brought into close contact tested circuit board, by the number of tested point
It is believed that breath is exported to detection circuit 3；
As shown in figure 3, the detection circuit 3 includes sensor group 301 and microprocessor 302, the sensor group 301 is wrapped
Current sensor and voltage sensor are included, and current sensor and voltage sensor form by high frequency group and low frequency group；It is described
Sensor group 301 is used for the current and voltage signals for detecting current tested point, and selects high frequency group or low according to actual conditions
Frequency group, measurement accuracy is improved, meets different types of circuit board testing demand；
To microprocessor 302, the microprocessor 302 is built-in with AD and turned the output detection signal of the sensor group 301
Parallel operation 304 and RS232 converters 305, and it is also associated with light between the a/d converter 304 and sensor group 301 of microprocessor 302
Coupling isolator 303, the optical coupling isolator 303 are used to realize that input and output are isolated, and reduce mutation electricity when sensor group 301 samples
The influence to subsequent conditioning circuit is flowed, so as to improve the stability of device, a/d converter 304 believes the data conversion collected into numeral
Number, the microprocessor 302 uses STM32 family chips, and microprocessor 302 is carried out at analysis to the data signal after conversion
Reason；The interaction end of the RS232 converters 305 is connected with ethernet controller 306, and the ethernet controller 306 passes through net
Line is connected to host computer, and RS232 converters 305 are used to carry out Data Format Transform, and the data after conversion are controlled by Ethernet
The coding packing of device 306, is then uploaded to host computer and is further processed.
In summary, the main characteristic of the invention lies in that：
(1) present invention is plugged in circular locating openings for spring holder nail, realized to solid by setting fixed underframe
Determine the installation of underframe, while disk body fixed using circular mounting hole, the disk body with mutually being fixed by fixed groove between trying to get to the heart of a matter,
Whole device installing/dismounting is very convenient；
(2) present invention detects circuit by setting, and difference is gathered respectively using the high frequency group in sensor group and low frequency group
The output signal of frequency circuit-under-test plate, the stability of collection information is improved using optical coupling isolator, with reference to ethernet controller
Realization communicates with the data of host computer, so as to easily carry out follow-up data processing.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Claims (6)
- A kind of 1. detachable test needle plate for needle-bar, it is characterised in that：Including fixed underframe (1), the fixed underframe (1) Including upper underframe (101) and lower underframe (102), being fixedly clamped between the upper underframe (101) and lower underframe (102) has testing needle Disk (2), the test dials (2) includes trying to get to the heart of a matter (201) and disk body (202), try to get to the heart of a matter (201) are made of ambroin, And the edge of (201) of trying to get to the heart of a matter is crimped between underframe (101) and lower underframe (102), the disk body (202) is cylindrical tube shape knot Structure, disk body (202), which is plugged on, tries to get to the heart of a matter on (201), the disk body (202) and tries to get to the heart of a matter hollow structure is formed between (201), inside peace Equipped with detection circuit (3), the upper surface of disk body (202) is equidistantly installed with test fingers (203), the test fingers (203) end is welded on disk body (202) lower surface, and is connected to detection circuit (3) by wire；The detection circuit (3) Including sensor group (301) and microprocessor (302), the output detection signal of the sensor group (301) to microprocessor (302), the microprocessor (302) is built-in with a/d converter (304) and RS232 converters (305), the RS232 converters (305) interaction end is connected with ethernet controller (306), and the ethernet controller (306) is connected to upper by netting twine Machine.
- A kind of 2. detachable test needle plate for needle-bar according to claim 1, it is characterised in that：The upper underframe (101) it is cirque structure, is plugged with spring holder nail (103) on the annulus frame of upper underframe (101) at equal intervals.
- A kind of 3. detachable test needle plate for needle-bar according to claim 1, it is characterised in that：The lower underframe (102) and circular locating openings (104), the size of the circular locating openings (104) and position have been dug in the edge of (201) of trying to get to the heart of a matter Put and matched with spring holder nail (103).
- A kind of 4. detachable test needle plate for needle-bar according to claim 1, it is characterised in that：It is described to try to get to the heart of a matter (201) being dug on has a fixing groove (204), and the fixing groove (204) is annular shape, and the thickness of annulus is following with disk body (202) It is consistent along thickness.
- A kind of 5. detachable test needle plate for needle-bar according to claim 1, it is characterised in that：The microprocessor (302) STM32 family chips are used, and are also connected between the a/d converter (304) and sensor group (301) of microprocessor (302) It is connected to optical coupling isolator (303).
- A kind of 6. detachable test needle plate for needle-bar according to claim 1, it is characterised in that：The sensor group (301) current sensor and voltage sensor are included, and current sensor and voltage sensor are by high frequency group and low frequency group group Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710917151.7A CN107782932A (en) | 2017-09-30 | 2017-09-30 | A kind of detachable test needle plate for needle-bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710917151.7A CN107782932A (en) | 2017-09-30 | 2017-09-30 | A kind of detachable test needle plate for needle-bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782932A true CN107782932A (en) | 2018-03-09 |
Family
ID=61434071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710917151.7A Pending CN107782932A (en) | 2017-09-30 | 2017-09-30 | A kind of detachable test needle plate for needle-bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107782932A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080100330A1 (en) * | 2005-08-05 | 2008-05-01 | Advantest Corporation | Test apparatus, performance board and interface plate |
| CN102062792A (en) * | 2009-11-12 | 2011-05-18 | 旺矽科技股份有限公司 | Probe card |
| CN202256400U (en) * | 2011-09-30 | 2012-05-30 | 深圳市森力普电子有限公司 | Test fixture |
| CN202614794U (en) * | 2012-05-02 | 2012-12-19 | 苏州创瑞机电科技有限公司 | Chip module testing socket |
-
2017
- 2017-09-30 CN CN201710917151.7A patent/CN107782932A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080100330A1 (en) * | 2005-08-05 | 2008-05-01 | Advantest Corporation | Test apparatus, performance board and interface plate |
| CN102062792A (en) * | 2009-11-12 | 2011-05-18 | 旺矽科技股份有限公司 | Probe card |
| CN202256400U (en) * | 2011-09-30 | 2012-05-30 | 深圳市森力普电子有限公司 | Test fixture |
| CN202614794U (en) * | 2012-05-02 | 2012-12-19 | 苏州创瑞机电科技有限公司 | Chip module testing socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |
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| RJ01 | Rejection of invention patent application after publication |