CN210347716U - Impedance test fixture suitable for rigid printed circuit board PCBA mainboard - Google Patents
Impedance test fixture suitable for rigid printed circuit board PCBA mainboard Download PDFInfo
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- CN210347716U CN210347716U CN201921082146.XU CN201921082146U CN210347716U CN 210347716 U CN210347716 U CN 210347716U CN 201921082146 U CN201921082146 U CN 201921082146U CN 210347716 U CN210347716 U CN 210347716U
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Abstract
The utility model relates to an impedance test fixture suitable for a rigid printed circuit board PCBA mainboard, which comprises an operation platform, wherein the central part of the operation platform is a product detection area, a vertical plate is arranged on the operation platform, an upper cover bracket beam is arranged on the vertical plate and is arranged above the product detection area, a pressing clamp is arranged on the upper cover bracket beam, a carrier positioning stop strip is arranged on the operation platform, and is fixed on the inner side of the vertical plate, the carrier positioning stop strip is arranged in an L-shaped structure, and a first space is arranged between the bottom surface of the carrier positioning stop strip and the operating platform, a product carrier plate is arranged in the first interval and can be drawn in the first interval, an upper cover plate is arranged on the top end of the carrier positioning stop bar, and the bottom end of the carrier positioning stop bar forms a second space, and a product lower cover plate is arranged in the second space and can be pulled and pulled in the second space. The utility model discloses can accomplish the impedance measurement process, can save time, effort and fund, can show and promote whole efficiency.
Description
Technical Field
The utility model relates to an impedance test fixture especially relates to an impedance test fixture suitable for rigid printed circuit board PCBA mainboard.
Background
In the current impedance test, a customized impedance test fixture is required for PCBA architectures such as general computers and servers, and the like, according to different application fields and different architectures and shapes. The price is expensive, and the complexity is high, and is with very good costs, and in case the demand adjustment changes, the PCBA changes (no matter finely adjust or adjust by a wide margin), all needs to customize the impedance test tool again. The universality is poor, time and labor are wasted, and a large amount of funds are consumed, so that the current impedance test fixture has the defects.
The impedance test is an important measurement method and means for a universal PCBA mainboard circuit, and the test requirements are met by adopting a corresponding measurement scheme according to different application fields and types of the PCBA mainboard. However, all current impedance testing processes need to be equipped with a testing fixture, so that the PCBA mainboard can be normally measured. As the forms and the performance types of the main board are diversified day by day, the requirements on the test fixture are different, so that the functions of the fixture are required to be complete as much as possible, and the test fixture can adapt to the test requirements of PCBAs (printed Circuit Board assemblies) of various types and cross-platforms.
The traditional impedance test generally adopts a universal meter to directly connect a PCBA test point for measurement, has low accuracy and efficiency to a certain extent, and has strong requirements on the technology and the specialty of operators. The impedance test fixture can solve the problems.
In view of the above-mentioned defects, the present designer actively makes research and innovation to create an impedance testing fixture with a novel structure suitable for a rigid printed circuit board PCBA motherboard, so that the impedance testing fixture has more industrial utilization value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing an impedance test fixture suitable for rigid printed circuit board PCBA mainboard.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an impedance test fixture suitable for a rigid printed circuit board PCBA mainboard comprises an operation platform, wherein a product detection area is arranged in the center of the operation platform, a vertical plate is arranged on the operation platform and is positioned on two sides of the product detection area, an upper cover support cross beam is arranged on the vertical plate and is positioned above the product detection area, a pressing clamp is arranged on the upper cover support cross beam, a carrier positioning baffle strip is arranged on the operation platform and is positioned on the inner side of the vertical plate and fixed on the inner side of the vertical plate, the carrier positioning baffle strip is arranged in an L-shaped structure, a first space is arranged between the bottom surface of the carrier positioning baffle strip and the operation platform, a product carrier plate is arranged in the first space and can be pulled and pulled in the first space, an upper cover plate is arranged on the top end of the carrier positioning baffle strip, and the upper cover plate and the bottom end of the carrier positioning baffle strip form a second space, and a lower product cover plate is arranged in the second interval, and the lower product cover plate can be drawn and pulled in the second interval.
Preferably, the operating platform is provided with a plurality of test keys.
Preferably, a voltmeter is further arranged on the operating platform.
Preferably, the operating platform is provided with a support pillar which is positioned on the outer side of the vertical plate and used for assisting in fixing the vertical plate.
Preferably, an auxiliary plate is disposed on the upper cover plate.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
1. the utility model can replace the impedance test platform, can meet the test requirements of multiple platforms, and save much money; the serial port is used for data transmission, so that the complicated manual counting process can be avoided; the software end is compared automatically, so that a large amount of discrimination and re-judgment time is saved, and the improvement on the whole impedance testing efficiency is significant.
2. The modularized independent impedance test platform is detachable and can be flexibly replaced; the impedance test platform can be normally butted with the impedance test fixture body, and the test points are matched; the measuring tool normally transmits the measured value acquired on the impedance testing jig to a computer terminal through a serial port; the real-time data received by the computer end is automatically judged with the standard document through software, and a judgment result is given.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the product of the present invention with the lower cover plate pulled out;
FIG. 3 is a schematic drawing of the product carrier plate of the present invention;
fig. 4 is a schematic diagram of the test operation circuit of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in figures 1 to 4 of the drawings,
an impedance test fixture suitable for a rigid printed circuit board PCBA mainboard comprises an operation platform 10, wherein the center of the operation platform 10 is a product detection area, a vertical plate 11 is arranged on the operation platform 10 and is positioned at two sides of the product detection area, an upper cover support beam 2 is arranged on the vertical plate 11 and is positioned above the product detection area, a lower pressing clamp 1 is arranged on the upper cover support beam 2, a carrier positioning stop strip 8 is arranged on the operation platform 10 and is positioned at the inner side of the vertical plate 11 and fixed on the inner side of the vertical plate 11, the carrier positioning stop strip 8 is arranged in an L-shaped structure, a first interval is arranged between the bottom surface of the carrier positioning stop strip 8 and the operation platform 10, a product carrier plate 9 is arranged in the first interval and can be drawn and pulled in the first interval, an upper cover plate 6 is arranged at the top end of the carrier positioning stop strip 8, and the bottom end of the carrier positioning stop bar 8 forms a second distance, and a product lower cover plate 7 is arranged in the second distance and can be pulled and pulled in the second distance.
The utility model discloses in be provided with a plurality of test button 5 on the operation platform 10, each test button corresponds different test point, carries out corresponding test button operation as required and can satisfy the test to the product.
The utility model discloses in still be provided with voltmeter 4 on the operation platform 10.
The utility model discloses in be provided with support pillar 3 on the operation platform 10, be located the outside of riser 11 to with the supplementary fixed setting of riser, be convenient for consolidate the product.
In the utility model, an auxiliary plate 12 is arranged on the upper cover plate 6.
The utility model discloses well measuring tool normal transmission to computer end through the serial ports measured value that gathers on impedance test fixture, the real-time data that computer end received accomplishes the automatic judgement with the standard document through software to give and judge the result. The condition of the product can be clearly known by the operator, and meanwhile, the data can be stored and can be traced.
The working principle of the utility model is as follows:
during specific work, the product lower cover plate and the product carrier plate can be flexibly and quickly replaced according to different PCBAs, and the resistance value of the product lower cover plate and the product carrier plate can be quickly measured. The probe is installed on the product carrier board, each test point to be tested of the PCBA is measured, a series circuit loop is formed by triggering and communicating the key and the universal meter, an impedance value is generated, and judgment is carried out through impedance test software.
The probe on the product carrier plate is a conventional probing method for those skilled in the art, and the installation structure thereof is also a known method for those skilled in the art, and will not be described in detail herein.
An operator only needs to put the PCBA to be tested into the impedance test fixture and sequentially presses down the PCBA according to the key sequence, the impedance test software can automatically judge the result, the efficiency is more than 3 times of that of the traditional impedance test, the accuracy is improved by hundreds, and the technical requirement on the operator is zero.
The utility model discloses in can carry out nimble quick replacement to different PCBA to this impedance test fixture to adapt to different test needs, also can compromise a platform that a plurality of models of machineries are public when reducing the cost, the effect is showing. The modularized independent impedance test platform is detachable and can be flexibly replaced; the impedance test platform can be normally butted with the impedance test fixture body, and the test points are matched.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides an impedance test fixture suitable for rigid printed circuit board PCBA mainboard which characterized in that: comprises an operation platform (10), the center of the operation platform (10) is a product detection area, a vertical plate (11) is arranged on the operation platform (10), two sides of the product detection area are arranged, an upper cover support beam (2) is arranged on the vertical plate (11), the upper cover support beam is arranged above the product detection area, a pressing clamp (1) is arranged on the upper cover support beam (2), a carrier positioning baffle strip (8) is arranged on the operation platform (10), the inner side of the vertical plate (11) is arranged and fixed on the inner side of the vertical plate (11), the carrier positioning baffle strip (8) is arranged in an L-shaped structure, a first space is arranged between the bottom surface of the carrier positioning baffle strip and the operation platform (10), a product carrier plate (9) is arranged in the first space and can be drawn and pulled in the first space, an upper cover plate (6) is arranged on the top end of the carrier positioning baffle strip (8), and the bottom end of the carrier positioning stop bar (8) forms a second distance, a product lower cover plate (7) is arranged in the second distance, and the product lower cover plate can be pulled and pulled in the second distance.
2. The impedance testing fixture suitable for the PCBA mainboard of the rigid printed circuit board as recited in claim 1, wherein: the operating platform (10) is provided with a plurality of test keys (5).
3. The impedance testing fixture suitable for the PCBA mainboard of the rigid printed circuit board as recited in claim 1, wherein: the operating platform (10) is also provided with a voltmeter (4).
4. The impedance testing fixture suitable for the PCBA mainboard of the rigid printed circuit board as recited in claim 1, wherein: the operating platform (10) is provided with a support pillar (3) which is positioned on the outer side of the vertical plate (11) and is used for assisting and fixing the vertical plate.
5. The impedance testing fixture suitable for the PCBA mainboard of the rigid printed circuit board as recited in claim 1, wherein: an auxiliary plate (12) is arranged on the upper cover plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082146.XU CN210347716U (en) | 2019-07-11 | 2019-07-11 | Impedance test fixture suitable for rigid printed circuit board PCBA mainboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082146.XU CN210347716U (en) | 2019-07-11 | 2019-07-11 | Impedance test fixture suitable for rigid printed circuit board PCBA mainboard |
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| Publication Number | Publication Date |
|---|---|
| CN210347716U true CN210347716U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921082146.XU Active CN210347716U (en) | 2019-07-11 | 2019-07-11 | Impedance test fixture suitable for rigid printed circuit board PCBA mainboard |
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| CN (1) | CN210347716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537864A (en) * | 2020-05-27 | 2020-08-14 | 浪潮电子信息产业股份有限公司 | PCB impedance test fixture |
-
2019
- 2019-07-11 CN CN201921082146.XU patent/CN210347716U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537864A (en) * | 2020-05-27 | 2020-08-14 | 浪潮电子信息产业股份有限公司 | PCB impedance test fixture |
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