CN209148834U - A kind of four line test macro of separate type kind needle of pcb board - Google Patents
A kind of four line test macro of separate type kind needle of pcb board Download PDFInfo
- Publication number
- CN209148834U CN209148834U CN201821438383.0U CN201821438383U CN209148834U CN 209148834 U CN209148834 U CN 209148834U CN 201821438383 U CN201821438383 U CN 201821438383U CN 209148834 U CN209148834 U CN 209148834U
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- CN
- China
- Prior art keywords
- probe
- via hole
- pcb board
- orifice ring
- line test
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Abstract
The utility model discloses a kind of four line test macros of separate type kind needle of pcb board.By inserting a probe into two into pcb board via holes and connected testing weld pad, it is connected between two via holes by route copper, the other end of the probe is connected with the test of four line test fixtures input, forms test access.Compared with the test macro that four probes are arranged in single via hole orifice ring, the connection type that the utility model is inserted a probe into via hole and testing weld pad can effectively avoid the short slab that needle test can not be planted when via hole orifice ring is too small, widen testable range.
Description
Technical field
The utility model relates to tetra- line testing field of PCB, four line of separate type kind needle of especially a kind of pcb board tests system
System.
Background technique
Currently, in pcb board production process, quality directly affects monolith electricity the case where via hole (the also known as hole via) electro-coppering
The quality of road plate has a major impact, it is therefore desirable to detect after the completion of plating to electro-plating situation.It is most of in the prior art
The method tested using flying probe and jig, although flying probe can detect the case where electro-coppering, flying needle is surveyed
Examination needs manpower to carry out turn-over, and the manpower of consuming and working time are longer.And jig test is relatively simple efficiently method, it is existing
There is the mode for carrying out kind of needle in jig to be typically employed in orifice ring surrounding setting probe, but when the needle diameter of orifice ring is less than 0.1mm
Lower four probes of Shi Wufa kind, and then can not be detected, if although may be implemented to be minimal to 0.03mm's using line needle therapeutical apparatus
The test of needle diameter, but the cost of line needle therapeutical apparatus is very high, is unfavorable for Cost Control.
Utility model content
To solve the above problems, being welded in the vias with the test test being connected the purpose of this utility model is to provide a kind of
The connection type of probe is respectively set in disk hole, is formed and is connected by probe and the copper-metallized contact of hole two sides, without in orifice ring
Place's setting probe, improves detectable needle diameter range.
The technical solution adopted by the utility model to solve the problem is as follows: a kind of four line of separate type kind needle of pcb board is tested
System, comprising: pcb board and the four line test fixtures for being tested, the pcb board are sandwiched in the four lines test fixture；
It include the first via hole orifice ring and the second via hole orifice ring, the first via hole orifice ring and the second via hole in the pcb board
Orifice ring two sides are connected by route copper；It further include the first testing weld pad and the second testing weld pad for test probe to be arranged,
First testing weld pad is connected by route copper with the second via hole orifice ring, and second testing weld pad passes through route copper and the
One via hole orifice ring is connected；
It further include the first probe, the second probe, third probe and the 4th probe；Above-mentioned probe is connected to pcb board
First testing weld pad, the first via hole orifice ring, the second via hole orifice ring and the second testing weld pad.
Further, the diameter of first probe and the 4th probe is 0.15-0.4mm.
Further, the diameter of second probe and third probe is 0.5-1mm.
Further, the via hole in the first via hole orifice ring and the second via hole orifice ring is opening.
Further, the first via hole orifice ring and the second via hole eye surface be pcb board plus copper plate.
Further, first probe and the second probe are connected to the voltage tester input terminal of four line test fixtures；It is described
Third probe and the 4th probe are connected to the testing current input terminal of four line test fixtures.
Further, further include drum in the four lines test fixture, the drum with a thickness of 15mm.
Further, the elastic external member for linking probe is provided in the drum.
The beneficial effects of the utility model are: four line of separate type kind needle that the utility model uses a kind of pcb board is tested
System.By distinguishing in the first via hole orifice ring, the second via hole orifice ring and the first testing weld pad, the second testing weld pad of pcb board
It is inserted into probe and forms measurement circuit.Compared to the way that 4 probes are arranged in a via hole orifice ring in the prior art is played, this is practical
The novel connection method with by probe separates into via hole and in testing weld pad, which replaces, to be arranged in orifice ring, and the ruler of orifice ring is avoided
The shortcomings that needle leads to not test can not be planted when very little too small, and without using line needle therapeutical apparatus, is expanded in the case where low cost
The range of four line jigs test.
Detailed description of the invention
The utility model is described in further detail with example with reference to the accompanying drawing.
Fig. 1 is a kind of probe connection schematic diagram of the four line test macro of separate type kind needle of pcb board of the utility model；
Fig. 2 is the pcb board and jig connection signal of a kind of four line test macro of separate type kind needle of pcb board of the utility model
Figure；
Fig. 3 is a kind of multiple groups hole location of the four line test macro second embodiment of separate type kind needle of pcb board of the utility model
Connection schematic diagram.
Drawing reference numeral explanation:
1. the first probe；2. the first testing weld pad；3. the first via hole orifice ring；4. the second probe；5. the second via hole orifice ring；6.
Third probe；7. the second testing weld pad；8. the 4th probe；9. route copper；10. jig upper mold；11.PCB plate；12. jig lower die；
13. drum；14. elastic external member；15. third via hole orifice ring；16. the 5th probe；17. the 6th probe；18. the 4th via hole orifice ring.
Specific embodiment
Referring to Figures 1 and 2, a kind of four line test macro of separate type kind needle of pcb board of the utility model, comprising: pcb board
11 and the four line test fixtures for being tested, the pcb board be sandwiched in the four lines test fixture；
It include the first via hole orifice ring 3 and the second via hole orifice ring 5, the first via hole orifice ring 3 and second in the pcb board 11
5 two sides of via hole orifice ring are connected by route copper 9；It further include being surveyed for the first testing weld pad 2 and second of test probe to be arranged
Test weld disk 7, first testing weld pad 2 are connected by route copper 9 with the second via hole orifice ring 5, and second testing weld pad 7 is logical
Route copper 9 is crossed to be connected with the first via hole orifice ring 3；
It further include the first probe 1, the second probe 4, third probe 6 and the 4th probe 8；Above-mentioned probe is connected to PCB
The first testing weld pad 2, the first via hole orifice ring 3, the second via hole orifice ring 5 and the second testing weld pad 7 of plate 11.
Wherein, the pcb board 11 is dual platen, as shown in Fig. 2, the jig upper mold of four line test fixtures and jig lower die root
Probe location is pre-set according to the circuit of corresponding surface pcb board 11, probe location and Fig. 1 institute when four line jigs clamp pcb board 11
The via hole orifice ring and testing weld pad position shown is corresponding.
Wherein, the both ends syringe needle of first probe 1, the second probe 4, third probe 6 and the 4th probe 8 is cone
Syringe needle only needs contact forming access with the surface copper of via hole orifice ring, to the syringe needle compared with exact matching in test
The case where speech, conical syringe needle is adapted to compared with multiple aperture, therefore the conical syringe needle of use can effectively improve the usage range of probe.
Further, the diameter of first probe 1 and the 4th probe 8 is 0.15-0.4mm.
Further, the diameter of second probe 4 and third probe 6 is 0.5-1mm.
Further, the via hole in the first via hole orifice ring 3 and the second via hole orifice ring 5 is opening.
Wherein, in order to guarantee that probe can normally connect via hole, therefore via hole should be windowing design.
Further, the first via hole orifice ring 3 and 5 surface of the second via hole orifice ring be pcb board plus copper plate.
Wherein, the inner surface of the via hole is also layers of copper, to ensure that the route between each layer pcb board is connected to, convenient for surveying
Examination.
Further, first probe 1 and the second probe 4 are connected to the voltage tester input terminal of four line test fixtures；Institute
It states third probe 6 and the 4th probe 8 is connected to the testing current input terminal of four line test fixtures.
Wherein, after measurement circuit connection, the voltage value of the route of first probe 1 and the second probe 4 composition is sent to
In the voltage tester input terminal of four line test fixtures, the current value of the route of the third probe 6 and the 4th probe 8 composition is sent
Into the testing current input terminal of four line test fixtures.
Further include drum 13 in the four lines test fixture further with reference to Fig. 2, the drum 13 with a thickness of 15mm.
Wherein, the drum 13 is 5 layer line disks, and every layer with a thickness of 5mm.
Further, the elastic external member 14 for linking probe is provided in the drum 13.
Wherein, the probe is connect in the elastic external member 14 that one end is inserted into drum 13 with four line test fixtures, four lines
When test fixture clamps pcb board 11, elastic external member 14 is in compressive state, after being completed four line test fixtures opening, elasticity
External member 14 is unclamped, it is ensured that the connectivity of probe is good.
With reference to Fig. 3, a kind of four line test macro of separate type kind needle of pcb board, basic structure is basic with first embodiment
Identical, have following difference: the via hole includes two groups, and third via hole orifice ring 15 is increased on the basis of first embodiment, the
Four via hole orifice rings 18, the 5th probe 16 and the 6th probe 17；Pass through the first via hole orifice ring 3 and the 4th via hole hole between two groups of via holes
Route copper 9 between ring 18 is connected；Second testing weld pad 7 is connected with third via hole orifice ring 15 by route copper 9；Institute
It states the first probe 1 and second probe 4 is connected to first voltage test lead, the 5th probe 16 and the 6th probe 17
It is connected to second voltage test lead；Second probe 4 and the 4th probe 8 are connected to the first testing current end, and described the
Three probes 6 are connected to the second testing current end with the 6th probe 17.
The above, the only preferred embodiment of the utility model, the utility model are not limited to above-mentioned implementation
Mode, as long as its technical effect for reaching the utility model with identical means, all should belong to the protection scope of the utility model.
Claims (8)
1. a kind of four line test macro of separate type kind needle of pcb board characterized by comprising pcb board (11) and for being surveyed
Four line test fixtures of examination, the pcb board are sandwiched in the four lines test fixture；
In the pcb board (11) include the first via hole orifice ring (3) and the second via hole orifice ring (5), the first via hole orifice ring (3) and
Second via hole orifice ring (5) two sides are connected by route copper (9)；It further include the first testing weld pad for test probe to be arranged
(2) it is connected by route copper (9) with the second via hole orifice ring (5) with the second testing weld pad (7), first testing weld pad (2),
Second testing weld pad (7) is connected by route copper (9) with the first via hole orifice ring (3)；
It further include the first probe (1), the second probe (4), third probe (6) and the 4th probe (8)；Above-mentioned probe is connected to
The first testing weld pad (2) of pcb board (11), the first via hole orifice ring (3), the second via hole orifice ring (5) and the second testing weld pad (7).
2. a kind of four line test macro of separate type kind needle of pcb board according to claim 1, it is characterised in that: described
The diameter of one probe (1) and the 4th probe (8) is 0.15-0.4mm.
3. a kind of four line test macro of separate type kind needle of pcb board according to claim 1, it is characterised in that: described
The diameter of two probes (4) and third probe (6) is 0.5-1mm.
4. a kind of four line test macro of separate type kind needle of pcb board according to claim 1, it is characterised in that: described
Via hole in one via hole orifice ring (3) and the second via hole orifice ring (5) is opening.
5. a kind of four line test macro of separate type kind needle of pcb board according to claim 4, it is characterised in that: described
One via hole orifice ring (3) and the second via hole orifice ring (5) surface be pcb board plus copper plate.
6. a kind of four line test macro of separate type kind needle of pcb board according to claim 1, it is characterised in that: described
One probe (1) and the second probe (4) are connected to the voltage tester input terminal of four line test fixtures；The third probe (6) and
Four probes (8) are connected to the testing current input terminal of four line test fixtures.
7. a kind of four line test macro of separate type kind needle of pcb board according to claim 1, it is characterised in that: described four
Further include drum (13) in line test fixture, the drum (13) with a thickness of 15mm.
8. a kind of four line test macro of separate type kind needle of pcb board according to claim 7, it is characterised in that: the line
The elastic external member (14) for linking probe is provided in disk (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821438383.0U CN209148834U (en) | 2018-09-03 | 2018-09-03 | A kind of four line test macro of separate type kind needle of pcb board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821438383.0U CN209148834U (en) | 2018-09-03 | 2018-09-03 | A kind of four line test macro of separate type kind needle of pcb board |
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| Publication Number | Publication Date |
|---|---|
| CN209148834U true CN209148834U (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821438383.0U Active CN209148834U (en) | 2018-09-03 | 2018-09-03 | A kind of four line test macro of separate type kind needle of pcb board |
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| CN (1) | CN209148834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305405A (en) * | 2020-10-12 | 2021-02-02 | 景旺电子科技(珠海)有限公司 | Four-wire test system and test method for circuit board |
-
2018
- 2018-09-03 CN CN201821438383.0U patent/CN209148834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305405A (en) * | 2020-10-12 | 2021-02-02 | 景旺电子科技(珠海)有限公司 | Four-wire test system and test method for circuit board |
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