CN113740637B - Cable test fixture - Google Patents

Cable test fixture Download PDF

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Publication number
CN113740637B
CN113740637B CN202110857950.6A CN202110857950A CN113740637B CN 113740637 B CN113740637 B CN 113740637B CN 202110857950 A CN202110857950 A CN 202110857950A CN 113740637 B CN113740637 B CN 113740637B
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China
Prior art keywords
test
signal
testing
cable
board
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Active
Application number
CN202110857950.6A
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Chinese (zh)
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CN113740637A (en
Inventor
刘安阳
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Suzhou Inspur Intelligent Technology Co Ltd
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Suzhou Inspur Intelligent Technology Co Ltd
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Priority to CN202110857950.6A priority Critical patent/CN113740637B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416Connectors, terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/28Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Leads Or Probes (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

The invention discloses a cable testing jig which comprises a signal testing board, a plurality of signal testing points arranged on the surface of the signal testing board, a supporting bracket movably arranged above the signal testing board in a crossing mode, a testing probe arranged on the supporting bracket and used for being abutted to each signal testing point, a network analyzer used for analyzing testing results, and a testing cable connected between the testing probe and a network testing port of the network analyzer. Therefore, when the signal test is required to be carried out on the test cable, the test signal can be sent to the signal test board through the signal connection between the test probe and the corresponding signal test point by only connecting one end of the test cable with the test probe and connecting the other end of the test cable with the network test port of the network analyzer, so that the signal test on the test cable is completed. Compared with the prior art, the invention can conveniently and rapidly complete the cable signal test, improves the test efficiency, simplifies the test operation process and reduces the manual labor load.

Description

Cable test fixture
Technical Field
The invention relates to the technical field of servers, in particular to a cable testing jig.
Background
With the development of the chinese electronic technology, more and more electronic devices have been widely used.
Servers are an important component in electronic devices, which are devices that provide computing services. Since the server needs to respond to the service request and process it, the server should generally have the ability to afford the service and secure the service. According to the different types of services provided by the server, the server is divided into a file server, a database server, an application server, a WEB server and the like. The main components of the server include a processor, hard disk, memory, system bus, etc., similar to a general purpose computer architecture.
In the big data age, a large amount of IT equipment is centrally placed in data centers. These data centers include servers, storage, switches, and a large number of racks and other infrastructure of each type. Each IT device is composed of various hardware boards, such as a computing module, a storage module, a chassis, a fan module, and the like. Currently, carriers of high-speed signals in a server mainly include a board card and a Cable, and for the Cable, a Cable Loss (Cable Loss) is a critical parameter. The line loss reflects the quality of the transmission signal of the signal carrier, and the test requirements of testers on the line loss are higher and higher.
In the prior art, a conventional testing method is to calibrate a test cable used by an NA (Network Analyzer) with a calibrator, then connect the test cable to a cable tester, calibrate a plurality of connection cables of the cable tester with the calibrator, twist the plurality of connection cables to a signal testing board, and finally connect the plurality of connection cables to connectors of the signal testing board for testing. Because the types of the signal test boards are more, connectors configured on each signal test board may be different, for example, the connector types are multiple, such as SMA, SMP, slim SAS, miniSAS, oculink, gen Z, MCIO, so that one signal test board needs to be replaced every time a signal cable is tested, each cable and each connector need to be screwed and plugged again during each replacement operation, the operation flow is very tedious and tedious, the test efficiency is lower, and the labor load is higher.
Therefore, how to conveniently and rapidly complete the cable signal test, improve the test efficiency, simplify the test operation process, reduce the manual labor load and solve the technical problems faced by the technicians in the field.
Disclosure of Invention
The invention aims to provide a cable testing jig which can conveniently and rapidly finish cable signal testing, improve testing efficiency, simplify testing operation process and reduce manual labor load.
In order to solve the technical problems, the invention provides a cable testing jig which comprises a signal testing board, a plurality of signal testing points arranged on the surface of the signal testing board, a supporting bracket movably arranged above the signal testing board in a crossing manner, a testing probe arranged on the supporting bracket and used for being abutted to each signal testing point, and a network analyzer used for analyzing testing results, wherein a testing cable is connected between the testing probe and a network testing port of the network analyzer.
Preferably, the signal test points are distributed on the surface of the signal test board in a plurality of columns at preset intervals.
Preferably, the support bracket comprises support longitudinal rods distributed on two sides of the signal test board in the width direction, support cross beams connected between the support longitudinal rods, and slide rails arranged at the bottoms of the support longitudinal rods, and the test probes are vertically connected to the bottoms of the support cross beams.
Preferably, the length direction of the sliding rail is parallel to the length direction of the signal testing board.
Preferably, the test probe is movably connected to the bottom of the supporting beam, and the moving direction of the test probe is parallel to the width direction of the signal test board.
Preferably, the support beam is provided with a long sliding hole along the length direction thereof, and the test probe is slidably arranged in the long sliding hole.
Preferably, the test probe comprises a needle cylinder arranged in the long sliding hole and a needle head which can be vertically and telescopically arranged at the bottom end of the needle cylinder.
Preferably, springs are arranged in the needle cylinder, are distributed in the vertical direction and are connected with the needle head.
The invention provides a cable testing jig which mainly comprises a signal testing board, a signal testing point, a supporting bracket, a testing probe and a network analyzer. The signal test board is mainly used for signal testing of the test cable, a plurality of signal test points are arranged on the surface of the signal test board, and each signal test point is mainly used for forming signal connection with the test cable so as to complete signal testing according to test contents. The support bracket spans over the signal testing board and can move relative to the signal testing board. The test probes are arranged on the support bracket and are mainly used for forming physical butt joint with each signal test point and forming signal connection at the same time. The network analyzer is mainly used for analyzing test results, and the test cable is connected between the test probe and a network test port of the network analyzer, and the network analyzer, the test probe and the signal test board are connected in series. Therefore, when the signal test is required to be carried out on the test cable, the test signal can be sent to the signal test board through the signal connection between the test probe and the corresponding signal test point by only connecting one end of the test cable with the test probe and connecting the other end of the test cable with the network test port of the network analyzer, so that the signal test on the test cable is completed. During the period, because the signal connection between the test cable and the signal test board is realized through the point contact between the test probe and the signal test point, and the support bracket can move relative to the signal test board, the signal connection between the test probe and the signal test point can be conveniently realized, and the signal connection between the test cable and different signal test points can be adjusted. Compared with the prior art, operators do not need to screw and plug the connector plug, the problem of matching the connector model is not needed to be considered, the cable signal test can be conveniently and rapidly completed, the test efficiency is improved, the test operation process is simplified, and the manual labor load is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic overall structure of an embodiment of the present invention.
Wherein, in fig. 1:
test cable-a;
a signal test board-1, a signal test point-2, a support bracket-3, a test probe-4 and a network analyzer-5;
a supporting longitudinal rod-31, a supporting cross beam-32, a sliding rail-33, a needle cylinder-41 and a needle head-42;
long slide hole-321.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic overall structure of an embodiment of the present invention.
In one embodiment of the present invention, the cable testing fixture mainly includes a signal testing board 1, a signal testing point 2, a supporting bracket 3, a testing probe 4 and a network analyzer 5.
The signal test board 1 is mainly used for testing a signal of a test cable a, a plurality of signal test points 2 are arranged on the surface of the signal test board 1, and each signal test point 2 is mainly used for forming signal connection with the test cable a so as to complete the signal test according to test contents.
The support bracket 3 is arranged astride the signal testing board 1 and can move relative to the signal testing board 1. The test probes 4 are arranged on the support bracket 3 and are mainly used for forming physical abutting connection with each signal test point 2 and simultaneously forming signal connection.
The network analyzer 5 is mainly used for analyzing test results, and the test cable a is connected between the test probe 4 and a network test port of the network analyzer 5, and connects the network analyzer 5, the test probe 4 and the signal test board 1 in series.
Therefore, when the signal test is required to be performed on the test cable a, only one end of the test cable a is connected with the test probe 4, and then the other end of the test cable a is connected with the network test port of the network analyzer 5, so that the test signal can be sent to the signal test board 1 through the signal connection between the test probe 4 and the corresponding signal test point 2, and the signal test on the test cable a is completed.
During the period, the signal connection between the test cable a and the signal test board 1 is realized through the point contact between the test probe 4 and the signal test point 2, and the support bracket 3 can move relative to the signal test board 1, so that the signal connection between the test probe 4 and the signal test point 2 can be conveniently realized, and the signal connection between the test cable a and different signal test points 2 can be adjusted.
Compared with the prior art, operators do not need to screw and plug the connector plug, the problem of matching the connector model is not needed to be considered, the cable signal test can be conveniently and rapidly completed, the test efficiency is improved, the test operation process is simplified, and the manual labor load is reduced.
In a preferred embodiment with respect to the signal test points 2, the individual signal test points 2 are distributed in parallel, typically simultaneously in several rows, at a predetermined distance from each other, in particular on the surface of the signal test board 1. In general, each row of signal test points 2 is distributed on the surface of the signal test board 1 in the length direction or the width direction thereof. So arranged, it is convenient to move the test probes 4 equally and equidistantly to different signal test points 2 when signal testing is performed. Of course, the specific distribution of the signal test points 2 is not fixed, and the number and the positions of the signal test points 2 can be adjusted according to different test contents, for example, each signal test point 2 can also be circumferentially distributed on the surface of the signal test board 1.
In a preferred embodiment with respect to the support bracket 3, the support bracket 3 mainly comprises a support rail 31, a support cross member 32 and a slide rail 33.
The support vertical bars 31 are vertically arranged on the ground or the mounting surface, generally two support vertical bars are simultaneously arranged, and are specifically distributed at two sides of the signal testing board 1 in the width direction. The supporting beams 32 are connected between the supporting longitudinal bars 31 at both sides, are generally in a horizontal state, and are integrally arranged at a position above the surface of the signal testing board 1 in a straddling manner, and keep a certain vertical height distance from the signal testing board 1. The test probe 4 is vertically connected to the bottom of the supporting beam 32, and can be automatically kept in a vertical state under the action of gravity. The sliding rail 33 is disposed at the bottom of each supporting vertical rod 31, and is mainly used for enabling the supporting vertical rods 31 and the supporting cross beams 32 to move integrally along the length direction of the sliding rail 33, so as to realize specific test position adjustment of the test probe 4, and facilitate physical abutment and signal connection with different signal test points 2.
Generally, the length direction of the sliding rail 33 is parallel to the length direction of the signal testing board 1, so that the supporting longitudinal bar 31 and the supporting cross bar 32 can slide along the length direction of the signal testing board 1, and further drive the testing probe 4 to adjust the testing position along the length direction of the signal testing board 1.
Of course, the length direction of the sliding rail 33 may be parallel to the width direction of the signal testing board 1, so that the supporting longitudinal bar 31 and the supporting cross bar 32 can slide along the width direction of the signal testing board 1, and further drive the testing probe 4 to adjust the testing position along the width direction of the signal testing board 1.
Further, in order to improve the flexibility of the adjustment of the test position of the test probe 4 on the basis that the length direction of the slide rail 33 is parallel to the length direction of the signal test board 1, in this embodiment, the test probe 4 is specifically movably connected to the bottom of the supporting beam 32, and the moving direction of the test probe 4 is parallel to the width direction of the signal test board 1. Generally, the length direction of the supporting beam 32 is the width direction of the signal testing board 1. By sliding the test probes 4 on the supporting beams 32, the test positions of the test probes 4 can be adjusted in the width direction of the signal test board 1. Thus, the two-dimensional position adjustment of the test probe 4 in the length and width directions of the signal test board 1 can be simultaneously realized by combining the sliding of the supporting longitudinal rod 31 on the sliding rail 33.
In order to facilitate the sliding of the test probe 4 on the support beam 32, the support beam 32 is provided with a long sliding hole 321 in this embodiment. Specifically, the length direction of the long sliding hole 321 is the length direction of the supporting beam 32, and the head of the test probe 4 is sleeved in the long sliding hole 321 and can slide along the inner wall of the long sliding hole 321.
In a preferred embodiment with respect to the test probe 4, the test probe 4 mainly comprises a needle cylinder 41 and a needle 42. The syringe 41 is of a main structure, is connected to the supporting beam 32, is sleeved in the long sliding hole 321, and can slide along the long sliding hole 321, and the top end of the syringe is mainly used for being connected to one end of the test cable a, for example, through a wire clamp or other parts. The needle 42 is arranged at the bottom of the needle cylinder 41 and is mainly used for forming physical abutment and signal connection with the signal test point 2 arranged on the surface of the signal test board 1 and transmitting a test signal to the signal test point 2. Typically, the bottom end of the needle 42 remains perpendicular to the surface of the signal test site 2 when testing is performed.
Further, considering that a certain pre-tightening force needs to be kept between the bottom end of the needle 42 and the signal test point 2 during the test, so as to ensure good contact and prevent offset, in this embodiment, the needle 42 can specifically perform a vertical telescopic motion at the bottom of the syringe 41. Specifically, a spring is provided in the cylinder 41, the elastic deformation direction of the spring is vertical, and the bottom end of the spring is connected to the needle 42. By the arrangement, when the pinhead 42 is in contact with the signal test point 2, pretightening force can be formed on the pinhead 42 through compression of the spring, so that the pinhead 42 can be ensured to be stably pressed on the surface of the signal test point 2 and kept vertical.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The cable testing jig is characterized by comprising a signal testing board (1), a plurality of signal testing points (2) arranged on the surface of the signal testing board (1), a supporting bracket (3) movably arranged above the signal testing board (1), a testing probe (4) arranged on the supporting bracket (3) and used for being abutted to each signal testing point (2), and a network analyzer (5) used for analyzing testing results, wherein a testing cable (a) is connected between the testing probe (4) and a network testing port of the network analyzer (5);
the signal test board (1) is used for carrying out signal test on the test cable (a), and each signal test point (2) is used for forming signal connection with the test cable (a) so as to finish signal test according to test content; when the test cable (a) is subjected to signal test, one end of the test cable (a) is connected with the test probe (4), the other end of the test cable (a) is connected with a network test port of the network analyzer (5), and then a test signal is sent to the signal test board (1) through signal connection between the test probe (4) and the corresponding signal test point (2), so that signal test of the test cable (a) is completed.
2. The cable testing jig according to claim 1, wherein the signal testing points (2) are distributed with a plurality of columns at a preset interval on the surface of the signal testing board (1).
3. The cable testing jig according to claim 1, wherein the support bracket (3) comprises support longitudinal bars (31) distributed on both sides of the signal testing board (1) in the width direction, support cross beams (32) connected between the support longitudinal bars (31), and slide rails (33) arranged at the bottoms of the support longitudinal bars (31), and the test probes (4) are vertically connected to the bottoms of the support cross beams (32).
4. A cable test jig according to claim 3, wherein the length direction of the slide rail (33) is parallel to the length direction of the signal test board (1).
5. The cable test fixture according to claim 4, characterized in that the test probes (4) are movably connected to the bottom of the supporting beam (32), and the moving direction of the test probes (4) is parallel to the width direction of the signal test board (1).
6. The cable testing jig according to claim 5, wherein a long slide hole (321) is formed in the support beam (32) along a length direction thereof, and the test probe (4) is slidably disposed in the long slide hole (321).
7. The cable testing jig according to claim 6, wherein the testing probe (4) comprises a needle cylinder (41) arranged in the long sliding hole (321) and a needle head (42) which is vertically retractably arranged at the bottom end of the needle cylinder (41).
8. The cable testing jig according to claim 7, wherein springs vertically distributed and connected to the needle (42) are provided in the cylinder (41).
CN202110857950.6A 2021-07-28 2021-07-28 Cable test fixture Active CN113740637B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110857950.6A CN113740637B (en) 2021-07-28 2021-07-28 Cable test fixture

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Application Number Priority Date Filing Date Title
CN202110857950.6A CN113740637B (en) 2021-07-28 2021-07-28 Cable test fixture

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CN113740637B true CN113740637B (en) 2023-11-03

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117471182B (en) * 2023-12-21 2024-04-02 中国电子产品可靠性与环境试验研究所((工业和信息化部电子第五研究所)(中国赛宝实验室)) System, method and storage medium for testing dielectric property of circuit board

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