CN202230136U - PCB impedance test board and in-process PCB - Google Patents
PCB impedance test board and in-process PCB Download PDFInfo
- Publication number
- CN202230136U CN202230136U CN2011203726214U CN201120372621U CN202230136U CN 202230136 U CN202230136 U CN 202230136U CN 2011203726214 U CN2011203726214 U CN 2011203726214U CN 201120372621 U CN201120372621 U CN 201120372621U CN 202230136 U CN202230136 U CN 202230136U
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- hole
- testing impedance
- impedance plate
- pcb
- test board
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Abstract
The utility model provides a PCB impedance test board, which has a smaller size, saves raw materials for PCB production and has lower manufacturing cost, and aims to solve the problems that as adjacent signal holes of a traditional PCB impedance test board can not test high-frequency impedance at the same time and more holes are required for the whole test, higher manufacturing cost is caused by large loss of raw materials for PCB production due to a larger size of a required test board. The PCB impedance test board is characterized in that the distance between centers of two adjacent signal holes in the impedance test board is larger than or equal to 3mm. The adjacent signal holes on the impedance test board, between which the distance is increased, can achieve high-frequency impedance tests at the same time, the corresponding signal holes are diminished to reduce the size of the impedance test board. The utility model further provides an in-process PCB.
Description
Technical field
The utility model relates to the printed-board technology field, relates in particular to a kind of printing board PCB testing impedance plate and PCB in making sheet.
Background technology
Whether the client is designed with the circuit board of impedance (in the circuit with resistance, inductance and electric capacity, to the inhibition that alternating current rose) control, need management and control circuit board resistance value to meet the requirements of the customers in process of production.For reaching this purpose; Board production producer can make a testing impedance plate according to client's impedance design outside the wiring board that the client needs, judge through the resistance value of measuring the testing impedance plate whether the resistance value in the plate reaches client's management and control requirement in process of production.
The telltale hole that traditional P CB testing impedance plate is adjacent can not carry out the test of high-frequency resistance simultaneously, needs more hole could accomplish whole tests, makes that required testing impedance board size is big, causes the loss of PCB production starting material big, causes manufacturing cost to rise.
The utility model content
The utility model provides a kind of printed circuit board (PCB) (PCB) testing impedance plate, can reduce the size of testing impedance plate, practices thrift PCB and produces starting material, reduces manufacturing cost.
The utility model is a kind of PCB testing impedance plate, and the distance between the center, two adjacent signals holes in the said testing impedance plate is not less than 3mm.
Distance between the two adjacent ground hole centers in the said testing impedance plate is not less than 3mm.
Said testing impedance plate is the test board that is used to carry out the high-frequency resistance test.
The distance at ground hole center and center, adjacent signals hole is greater than the radius summation in said ground hole and said adjacent signals hole.
Said testing impedance plate comprises pilot hole, passes through the pilot hole blocked impedance test board on the anchor clamps when being used to test.
The aperture of said telltale hole adapts according to the probe size on the said anchor clamps.
The utility model provides a kind of PCB in making sheet, comprises the testing impedance plate, and wherein the distance between the center, two adjacent signals holes in the testing impedance plate is not less than 3mm; Distance between the two adjacent ground hole centers in the testing impedance plate is not less than 3mm; The testing impedance plate is the test board that is used to carry out the high-frequency resistance test; The distance at ground hole center and center, adjacent signals hole is greater than the radius summation in said ground hole and said adjacent signals hole; The testing impedance plate comprises pilot hole, passes through the pilot hole blocked impedance test board on the anchor clamps when being used to test; The PCB testing impedance plate of any characteristic during the aperture of telltale hole adapts according to the probe size on the said anchor clamps.
The utility model is through having increased the distance between the adjacent signals hole.When the testing impedance plate is carried out high-frequency test, be short-circuited in the time of can not causing connecting high-frequency signal simultaneously, and can test two adjacent telltale holes simultaneously because of two adjacent signals pitchs of holes are too small.Because when adjacent telltale hole can be measured simultaneously, need not at a distance from hole test, quantity that then can corresponding minimizing telltale hole, the size of reduction testing impedance plate has been practiced thrift the starting material of testing impedance plate, has reduced cost.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the utility model;
Fig. 2 is the concrete structure synoptic diagram of the embodiment of the utility model.
Embodiment
The utility model has increased the distance between the adjacent signals hole, when impedance plate carries out high-frequency test, is short-circuited in the time of can not causing connecting high-frequency signal simultaneously because of the adjacent signals pitch of holes is too small.Below in conjunction with Fig. 1 present embodiment is explained.
As shown in Figure 1, the distance at 2 centers, two adjacent signals holes of testing impedance plate 1 is 3mm.Distance between the adjacent signals hole is enough big, in the time of just avoiding connecting high-frequency signal simultaneously in the adjacent signals hole, is short-circuited between the two adjacent signals holes.
More excellent, the distance at two adjacent ground holes, 3 centers on the testing impedance plate 1 also is adjusted into 3mm accordingly, and it is comparatively neat to make that the relative ground hole of telltale hole is arranged.
Through the pilot hole 4 of fixing this testing impedance plate of the pilot hole on the anchor clamps, the testing impedance plate is moved when avoiding testing when being used to test on the testing impedance plate 1.During test, with the pilot hole on the testing impedance plate cooperate with pilot hole on the anchor clamps that are used for fixing the testing impedance plate align after, insert probe in order to said testing impedance plate is fixed on the anchor clamps.
Be illustrated in figure 2 as the structural drawing of the utility model specific embodiment testing impedance plate.
Present embodiment confirms that as required telltale hole quantity is 12, and in a row distributes, and the distance between the adjacent two telltale hole centers is 3mm.
The distance that is not less than 3mm is short-circuited in the time of can avoiding carrying out high-frequency test at the same time between the adjacent signals hole.
In this example, confirm that ground hole quantity is 14, and in a row distribute, and the distance between the adjacent ground hole center is 3mm.
The distance at ground hole center and the telltale hole center that is adjacent can prevent to be short-circuited between ground hole and the telltale hole greater than the radius summation of this ground hole and this telltale hole.
In this example; Telltale hole be set at diameter 1mm according to the probe size on the anchor clamps with size ground hole; So the distance between row and row of telltale hole in a row and ground hole in a row is 2.54mm (as shown in the figure is zequin and terminal point with the center, hole), can avoid telltale hole and ground hole to be short-circuited.This distance has been kept row's spacing of the row of telltale hole on the existing testing impedance plate and ground hole row, and among other the embodiment, only need make the distance at ground hole center and center, adjacent signals hole get final product greater than the radius summation in ground hole and adjacent signals hole.
In this example, pilot hole is of a size of diameter 2mm, and is still consistent with the pilot hole size of existing testing impedance plate.Hole bit position and size are decided in fixed position according to the pilot hole on the anchor clamps, can be directly and the anchor clamps fit.When the testing impedance plate is tested, with the pilot hole on the testing impedance plate cooperate with pilot hole on the anchor clamps that are used for fixing the testing impedance plate align after, insert probe in order to said testing impedance plate is fixed on the anchor clamps.
During to this testing impedance board test, only need probe is inserted in each telltale hole and the ground hole,, can test out the resistance value of this each telltale hole of testing impedance plate through the telltale hole output high-frequency signal of probe to the testing impedance plate.
After the distance that has increased between the telltale hole center, make two adjacent telltale holes can carry out high-frequency test simultaneously, and need not at a distance from the hole test, can reduce the quantity of telltale hole accordingly, shorten the size of testing impedance plate.Existing testing impedance plate is generally 0.3X8.0Inch, and increases to behind the 3mm through the telltale hole pitch of holes, the testing impedance board size can be reduced into 0.3 * 5.5inch (7.62 * 139.7mm), practiced thrift the starting material of testing impedance plate, reduced production cost.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (7)
1. a printing board PCB testing impedance plate is characterized in that, the distance between the center, two adjacent signals holes in the said testing impedance plate is not less than 3mm.
2. testing impedance plate according to claim 1 is characterized in that, the distance between the two adjacent ground hole centers in the said testing impedance plate is not less than 3mm.
3. testing impedance plate according to claim 1 is characterized in that, said testing impedance plate is the test board that is used to carry out the high-frequency resistance test.
4. testing impedance plate according to claim 1 is characterized in that, the distance at ground hole center and center, adjacent signals hole is greater than the radius summation in said ground hole and said adjacent signals hole.
5. according to each described testing impedance plate in the claim 1～4, it is characterized in that said testing impedance plate comprises pilot hole, pass through the pilot hole blocked impedance test board on the anchor clamps when being used to test.
6. testing impedance plate according to claim 5 is characterized in that the aperture of said telltale hole adapts according to the probe size on the said anchor clamps.
7. a printing board PCB is characterized in that in making sheet, comprises like the said arbitrary PCB testing impedance plate of claim 1～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203726214U CN202230136U (en) | 2011-09-28 | 2011-09-28 | PCB impedance test board and in-process PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203726214U CN202230136U (en) | 2011-09-28 | 2011-09-28 | PCB impedance test board and in-process PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230136U true CN202230136U (en) | 2012-05-23 |
Family
ID=46080720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203726214U Expired - Lifetime CN202230136U (en) | 2011-09-28 | 2011-09-28 | PCB impedance test board and in-process PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230136U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502715A (en) * | 2014-12-31 | 2015-04-08 | 广州兴森快捷电路科技有限公司 | Impedance testing method of impedance board |
| CN106855590A (en) * | 2016-11-18 | 2017-06-16 | 深圳崇达多层线路板有限公司 | A kind of PCB impedance modules structure and its detection method |
| CN107087342A (en) * | 2016-02-16 | 2017-08-22 | 中兴通讯股份有限公司 | A kind of pcb board and its processing method and device crimped for connector |
| CN108254625A (en) * | 2017-12-29 | 2018-07-06 | 生益电子股份有限公司 | A kind of insertion loss test-strips |
-
2011
- 2011-09-28 CN CN2011203726214U patent/CN202230136U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502715A (en) * | 2014-12-31 | 2015-04-08 | 广州兴森快捷电路科技有限公司 | Impedance testing method of impedance board |
| CN104502715B (en) * | 2014-12-31 | 2017-07-04 | 广州兴森快捷电路科技有限公司 | The impedance detecting method of impedance plate |
| CN107087342A (en) * | 2016-02-16 | 2017-08-22 | 中兴通讯股份有限公司 | A kind of pcb board and its processing method and device crimped for connector |
| CN106855590A (en) * | 2016-11-18 | 2017-06-16 | 深圳崇达多层线路板有限公司 | A kind of PCB impedance modules structure and its detection method |
| CN108254625A (en) * | 2017-12-29 | 2018-07-06 | 生益电子股份有限公司 | A kind of insertion loss test-strips |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |