CN210071973U

CN210071973U - Tester for high-stability differential signal line

Info

Publication number: CN210071973U
Application number: CN201920739564.5U
Authority: CN
Inventors: 杨继中
Original assignee: Shenzhen Hetaisheng Electronic Wire Rod Co Ltd
Current assignee: Shenzhen Hetaisheng Electronic Wire Rod Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-02-14
Anticipated expiration: 2029-05-21

Abstract

The utility model relates to a tester for a high-stability differential signal line, which belongs to the technical field of signal line testing equipment, and the technical scheme of the tester comprises an installation base, a digital oscilloscope and a detection board; a plurality of pairs of clamping devices are arranged on the detection plate, and each clamping device comprises a detection base block and a fixing component; the upper surface of the detection base block is provided with a detection groove, the bottom of the detection groove is provided with a detection contact, the detection base block is provided with a threaded signal interface connected with the detection contact, and the connecting ends of the signal output line and the signal input line with the detection base block are provided with threaded signal connectors in threaded engagement with the threaded signal interface; the problems that when the existing oscilloscope needs to continuously test a plurality of differential data lines, the operation is complicated and the working efficiency is low because the existing oscilloscope needs to repeatedly disassemble and clamp; can once carry out the clamping to many differential signal lines, when carrying out many differential data lines continuous test, convenient operation.

Description

Tester for high-stability differential signal line

Technical Field

The utility model belongs to the technical field of signal line test equipment technique and specifically relates to a tester for high stability difference signal line is related to.

Background

The differential signal line is a signal line commonly used in daily life, such as a USB signal line and an HDMI signal line. When signals are transmitted in differential signal lines, the signals are attenuated, so that strict requirements are imposed on the differential signal lines in some devices requiring high-stability transmission. After the differential signal lines are produced, parameters of the differential signal lines need to be detected.

At present, an oscilloscope is generally adopted for detecting the differential signal line, the oscilloscope is provided with an output interface and an input interface, the output interface is connected with a signal output line, and the input interface is connected with a signal input line. One end of a differential signal line to be tested is connected with a signal output line, and the other end of the differential signal line is connected with an input signal line. When the differential signal line is detected, the oscilloscope inputs a detection signal through the input interface, and then receives the detection signal passing through the differential signal line through the input interface, so that parameters such as signal attenuation and impedance of the differential signal line are tested.

When the existing oscilloscope detects differential signal lines, only one differential signal line can be clamped at a time, and when a plurality of differential data lines need to be tested continuously, the differential signal line is required to be disassembled and clamped repeatedly, so that the operation is complex, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a detector for high stable difference signal line can once carry out the clamping to many difference signal lines, when testing many difference data lines in succession, convenient operation.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a tester for a high-stability differential signal line comprises an installation base and a digital oscilloscope fixed on the installation base, wherein the digital oscilloscope is provided with an output interface and an input interface, the output interface is connected with a signal output line, and the input interface is connected with a signal input line; the detection board is provided with a plurality of pairs of clamping devices, and each clamping device comprises a detection base block fixedly connected with the detection board and a fixing assembly for fixing a differential signal wire placed at the detection base block; the upper surface of the detection base block is provided with a detection groove, the bottom of the detection groove is provided with a detection contact, the detection base block is provided with a threaded signal interface connected with the detection contact, and the connecting ends of the signal output line and the signal input line with the detection base block are provided with threaded signal connectors in threaded engagement with the threaded signal interface.

By adopting the technical scheme, when the differential signal lines are detected, two ends of each detected differential data line are placed on the detection contacts, and then the end parts connected with the differential data lines are fixed on the detection base block through the fixing assemblies; signal output line and signal input line pass through the screw signal and connect and set up the screw signal interface threaded connection on detecting the base block, and then accomplish and detect the back to current differential data line, dismantle signal output line and signal input line through detecting the base block with current, and then connect fixedly through the screw signal and connect the detection base block with other differential data lines, convenient operation, detection efficiency is high.

The utility model discloses further set up to: the fixed component comprises a pressing block and a pressing plate, the pressing block is arranged in the detection groove, one end of the pressing block is hinged to the detection base block around the horizontal axis, the lower surface of the pressing plate is abutted to the upper surface of the pressing block, and one end of the pressing plate is rotatably connected with the detection base block around the horizontal axis.

Through adopting above-mentioned technical scheme, when detecting differential signal line, place the sense terminal of differential signal line tip to corresponding detection contact position department, and then rotate the briquetting and carry out the butt to the pencil, further horizontal level rotates the clamp plate, through the butt of clamp plate lower surface and briquetting upper surface, and then carries on spacingly to the briquetting to be connected the link and the detection base block of differential data line fixedly, convenient operation is swift.

The utility model discloses further set up to: the lower surface of clamp plate is fixed with application of force spring, application of force spring's lower extreme is fixed with the connecting block, the connecting block is connected with the rotation of detection base block around vertical axis.

Through adopting above-mentioned technical scheme, through application of force spring's setting, exert the power towards the briquetting to the clamp plate to effectively prevent that the clamp plate from taking place the skew under the state of stewing, and then cause the briquetting to support to press not hard up to differential data line.

The utility model discloses further set up to: the mounting groove has been seted up to the one end lower surface that its hinged end was kept away from to the briquetting, the mounting groove is pegged graft and is had the compression leg, the one end that the compression leg is close to the briquetting is fixed with pressure spring, pressure spring's the other end and the tank bottom fixed connection of mounting groove.

Through adopting above-mentioned technical scheme, through the comprehensive setting of compression leg and pressure spring, under the limiting displacement of clamp plate to the briquetting, pressure spring applys vertical decurrent power to the compression leg to carry out the crimping through the compression leg and fix differential data line, can play better fixed effect to differential data line, reduce when examining differential data line, differential data line and the possibility that drops that detects the base block.

The utility model discloses further set up to: and a toggle column is fixed on the upper surface of one end of the pressure plate, which is far away from the hinged end of the pressure plate.

Through adopting above-mentioned technical scheme, through keeping away from the one end of its hinged end at the clamp plate last fixed surface have stir the post, and then through stirring the post, make things convenient for the staff to rotate the clamp plate to it is more convenient when making the staff operate.

The utility model discloses further set up to: and an inserting plate with an L-shaped cross section is fixed on the side surface of the mounting base.

Through adopting above-mentioned technical scheme, be fixed with the picture peg that the cross section is the L type through the side at the installation base, and then when not using the detection base block to detect the difference signal line, with the pick-up plate picture peg on, and then conveniently accomodate the picture peg, make the environment cleaner and tidier.

The utility model discloses further set up to: and a placing cavity is formed in the side surface, close to the digital oscilloscope operation side, of the mounting base.

Through adopting above-mentioned technical scheme, place the chamber through seting up on the side that is close to digital oscilloscope operation side at the installation base, and then need not examine time measuring to inserting the branch signal line, dismantle signal output line and signal input line and detection base block, and then place signal output line and signal input line and place the chamber in to the convenience is accomodate signal output line and signal input line, thereby makes the environment cleaner and tidier.

The utility model discloses further set up to: the upper surface of the mounting base is provided with heat dissipation holes communicated with the placing cavity.

Through adopting above-mentioned technical scheme, through the louvre of offering and placing the chamber intercommunication at the upper surface of installation base, and then strengthen digital oscilloscope at the during operation through the louvre, the radiating effect of machine bottom.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the differential signal lines are detected, two ends of each detected differential data line are placed on the detection contacts, and the end parts connected with the differential data lines are fixed on the detection base block through the fixing assemblies; the signal output line and the signal input line are in threaded connection with a threaded signal interface arranged on the detection base block through a threaded signal connector, so that after the current differential data line is detected, the signal output line and the signal input line are detached from the current detection base block, and are connected and fixed with the detection base blocks of other differential data lines through the threaded signal connector, the operation is convenient, and the detection efficiency is high;

2. the fixing assembly comprises a pressing block and a pressing plate, and pressing force is applied when the plug data lines are connected through a pressing column and a pressure spring which are arranged at the lower part of the pressing block and a force application spring which is arranged on the pressing plate, so that the differential data lines are prevented from being separated from the detection base block;

3. through placing chamber and picture peg in the setting on the installation base, when not examining differential data line, and then place signal output line and signal input line through placing the chamber, place the pick-up plate through the picture peg to after experimental completion, it is more convenient that the staff accomodates and arranges in order.

Drawings

FIG. 1 is a schematic diagram of a tester for lines of high stability differential signals;

FIG. 2 is a schematic structural view of the clamping device;

FIG. 3 is a schematic diagram of a signal coupling embodying threads;

FIG. 4 is a schematic view showing the structure of a platen;

FIG. 5 is a schematic diagram showing the structure of a briquette;

fig. 6 is a schematic structural view of the mounting base.

In the figure, 1, a base is installed; 11. a placement chamber; 12. heat dissipation holes; 13. inserting plates; 2. a digital oscilloscope; 21. an output interface; 22. an input interface; 23. a signal output line; 24. a signal input line; 25. a threaded signal connection; 3. detecting a plate; 4. a clamping device; 41. detecting a base block; 411. a detection tank; 412. detecting a contact; 413. a threaded signal interface; 42. a fixing assembly; 421. briquetting; 422. pressing a plate; 4221. a limiting column; 423. shifting the column; 424. a force application spring; 425. connecting blocks; 426. mounting grooves; 427. pressing the column; 428. a pressure spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A tester for high-stability differential signal lines refers to fig. 1 and 2 and comprises a mounting base 1, a digital oscilloscope 2 fixed on the mounting base 1 and a detection board 3. The digital oscilloscope 2 is provided with an output interface 21 and an input interface 22, the output interface 21 is connected with a signal output line 23, and the input interface 22 is connected with a signal input line 24. The detection board 3 is provided with a plurality of pairs of clamping devices 4, the clamping devices 4 are used for connecting and fixing the differential data lines, and the clamping devices 4 of each pair are respectively used for connecting with two ends of the differential data lines. When the detection is performed, a detection signal is sent out through the output interface 21, and the detection signal passing through the differential data line is received through the input interface 22, so that the differential data line is detected.

Referring to fig. 2 and 3, the clamping device 4 includes a detection base block 41 and a fixing member 42. The upper surface of the detection base block 41 is provided with a detection groove 411, and the bottom of the detection groove 411 is provided with a detection contact 412. The detection base block 41 is provided with a threaded signal interface 413 connected with the detection contact 412, and the connection ends of the signal output line 23 and the signal input line 24 and the detection base block 41 are provided with a threaded signal connector 25 in threaded engagement with the threaded signal interface 413. When the differential signal lines are detected, the connecting ends of the differential data lines are placed at the positions of the detection contacts 412, and the differential data lines are connected and fixed with the detection base block 41 through the fixing assembly 42. Signal input line 24 and signal input line 24 link to each other with detection base block 41 through threaded signal joint 25 and threaded signal interface 413, and then can convenient and fast change corresponding detection base block 41 to signal input line 24 and signal input line 24, and then the differential data line that quick replacement detected, can effectual improvement detection efficiency.

Referring to fig. 2, the fixing assembly 42 includes a pressing block 421 and a pressing plate 422. The pressing block 421 is arranged in the detection groove 411, one end of the pressing block 421 is hinged to the detection base block 41 around a horizontal axis, the lower surface of the pressing plate 422 is abutted to the upper surface of the pressing block 421, and one end of the pressing plate 422 is rotatably connected with the detection base block 41 around the horizontal axis. A toggle column 423 is fixed on the upper surface of one end of the pressure plate 422 far away from the hinged end. After the connecting end of the differential data line is placed at the position of the detection contact 412, the pressing block 421 is rotated to make the pressing block 421 abut against the differential data line, and then the pressing block 422 is rotated by the shifting column 423, so that the lower surface of the pressing block 422 abuts against the upper surface of the pressing block 421, and then the pressing block 421 is positioned.

Referring to fig. 4, an urging spring 424 is fixed to the lower surface of the pressing plate 422, a connecting block 425 is fixed to the lower end of the urging spring 424, and the connecting block 425 is rotatably connected to the detection base block 41 about a vertical axis. A limiting column 4221 is further fixed on the lower surface of the pressure plate 422; the limit column 4221 is perpendicular to the connecting block 425 and is connected with the connecting block 425 in a sliding mode along the axial direction of the limit column 4221. Through the setting of application of force spring 424, exert the power towards briquetting 421 to clamp plate 422 to effectively prevent clamp plate 422 from taking place the skew under the state of stewing, and then cause briquetting 421 to press the differential data line not hard up.

Referring to fig. 5, a mounting groove 426 is formed in a lower surface of one end of the pressing block 421 away from the hinged end, and a pressing column 427 is inserted into the mounting groove 426. One end of the compression column 427 near the compression block 421 is fixed with a pressure spring 428, and the other end of the pressure spring 428 is fixedly connected with the bottom of the mounting groove 426. Under the limiting action of the pressing plate 422 on the pressing block 421, the pressure spring 428 applies a vertical downward force to the pressing column 427, so that the differential data line is pressed and fixed through the pressing column 427, a better fixing effect can be achieved on the differential data line, and the possibility of falling off of the differential data line and the detection base block 41 when the differential data line is detected is reduced.

Referring to fig. 1 and 6, a placing cavity 11 is opened on the side surface of the mounting base 1 close to the operation side of the digital oscilloscope 2. The upper surface of the mounting base 1 is provided with a heat dissipation hole 12 communicated with the placing cavity 11. An inserting plate 13 with an L-shaped cross section is fixed on the side surface of the mounting base 1. When the differential data lines are not to be tested, the signal input lines 24 and 24 are detached from the test substrate 41, and the signal input lines 24 and 23 are received in the placing cavity 11. Insert the pick-up plate 3 on picture peg 13 to can conveniently accomodate signal input line 24, signal output line 23 and picture peg 13, make the environment cleaner and tidier. Through the arrangement of the heat dissipation holes 12, the heat dissipation effect of the digital oscilloscope 2 during working is enhanced, and the digital oscilloscope 2 can work more stably.

The implementation principle of the embodiment is as follows:

when detecting the differential data line, place the link of differential data line to detect contact 412 position department, rotate briquetting 421 and make briquetting 421 support the pressure to the differential data line, and then rotate clamp plate 422 through stirring post 423, make the lower surface of clamp plate 422 and the upper surface butt of briquetting 421, and then fix a position briquetting 421. After the current differential data line is detected, the signal output line 23 and the signal input line 24 are detached from the current detection base block 41 and then connected and fixed with the detection base blocks 41 of other differential data lines through the threaded signal connectors 25. When the differential data lines are not to be tested, the signal input lines 24 and 24 are detached from the test substrate 41, and the signal input lines 24 and 23 are received in the placing cavity 11. Insert the pick-up plate 3 on the picture peg 13 to can conveniently accomodate signal input line 24, signal output line 23 and insert the board of putting, make the environment cleaner and tidier.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a tester of high stability difference signal line, includes installation base (1) and fixes digital oscilloscope (2) on installation base (1), digital oscilloscope (2) are provided with output interface (21) and input interface (22), output interface (21) are connected with signal output line (23), and input interface (22) are connected with signal input line (24), its characterized in that: also comprises a detection plate (3); the detection plate (3) is provided with a plurality of pairs of clamping devices (4), and each clamping device (4) comprises a detection base block (41) fixedly connected with the detection plate (3) and a fixing assembly (42) for fixing a differential signal wire placed at the detection base block (41); the upper surface of the detection base block (41) is provided with a detection groove (411), the groove bottom of the detection groove (411) is provided with a detection contact (412), the detection base block (41) is provided with a threaded signal interface (413) connected with the detection contact (412), and the connecting ends of the signal output line (23), the signal input line (24) and the detection base block (41) are provided with a threaded signal connector (25) in threaded engagement with the threaded signal interface (413).

2. The tester for high-stability differential signal lines according to claim 1, wherein: fixed subassembly (42) include briquetting (421) and clamp plate (422), briquetting (421) set up in detecting groove (411) and the one end of briquetting (421) is articulated with detecting base block (41) around horizontal axis, the lower surface of clamp plate (422) and the upper surface butt of briquetting (421) and the one end of clamp plate (422) rotate around horizontal axis and detect base block (41) and be connected.

3. The tester for high-stability differential signal lines according to claim 2, wherein: the lower surface of the pressing plate (422) is fixed with a force application spring (424), the lower end of the force application spring (424) is fixed with a connecting block (425), and the connecting block (425) is rotatably connected with the detection base block (41) around a vertical axis.

4. The tester for high-stability differential signal lines according to claim 2, wherein: the lower surface of one end, far away from the hinged end, of the pressing block (421) is provided with a mounting groove (426), a pressing column (427) is inserted into the mounting groove (426), a pressure spring (428) is fixed at one end, close to the pressing block (421), of the pressing column (427), and the other end of the pressure spring (428) is fixedly connected with the bottom of the mounting groove (426).

5. The tester for high-stability differential signal lines according to claim 2, wherein: and a toggle column (423) is fixed on the upper surface of one end of the pressure plate (422) far away from the hinged end.

6. The tester for high-stability differential signal lines according to claim 1, wherein: an inserting plate (13) with an L-shaped cross section is fixed on the side surface of the mounting base (1).

7. The tester for high-stability differential signal lines according to claim 4, wherein: a placing cavity (11) is formed in the side face, close to the operation side of the digital oscilloscope (2), of the mounting base (1).

8. The tester for high-stability differential signal lines according to claim 1, wherein: the upper surface of the mounting base (1) is provided with a heat dissipation hole (12) communicated with the placing cavity (11).