CN217766541U

CN217766541U - Special firing pin type test fixture for high-speed cable

Info

Publication number: CN217766541U
Application number: CN202221696684.XU
Authority: CN
Inventors: 张伟; 许高华
Original assignee: Sun Round Technology Shenzhen Co ltd
Current assignee: Sun Round Technology Shenzhen Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-11-08
Anticipated expiration: 2032-07-01

Abstract

The utility model relates to a power test equipment's field discloses a special firing pin type test fixture of high-speed cable, including the clamp, the clamp includes two conductive groove, and conductive groove is provided with the firing pin, firing pin and conductive groove sliding connection, and conductive groove is stretched out to the one end of firing pin, the firing pin can return back to conductive groove. During testing, the firing pin is contacted with the conductor section of the tested cable, the firing pin retracts inwards to the conductive groove under the action of external pressure, the spring connected with the firing pin is subjected to compression force, the conductive groove is communicated with the connector through an internal signal wire in the clamp body, and signals are transmitted to the vector network analyzer; after the test is finished, the reaction force of the spring enables the firing pin to rebound out of the conductive groove, and the firing pin returns to the original unstressed state. The firing pin type test fixture special for the high-speed cable effectively prolongs the service life of the test fixture, simplifies the test operation steps, and finally achieves the effects of improving the test efficiency and the test result accuracy.

Description

Special firing pin type test fixture for high-speed cable

Technical Field

The application relates to the field of power test equipment, in particular to a firing pin type test fixture special for high-speed cables.

Background

At present, the test clamp for connecting high-speed cable and electric power performance test equipment is mostly the push type test clamp, and in the electric power performance test process, the user need fully contact the brass part of push type test clamp with the conductor of the cable that awaits measuring, applys the extrusion force to the contact surface to make the signal accurately transmit in the cable, then reach electric power test's purpose.

Before testing begins, a user needs to dissect a high-speed cable to be tested with a proper length so as to expose conductors; because the high-speed cable structure has the particularity during the test, the conductor of the cable that awaits measuring and the brass part full contact's of current anchor clamps degree of difficulty is big during the wiring, and conductor and brass part area of contact are too big, and long-term use can lead to the brass partial wearing and tearing of anchor clamps, has increaseed the loss of anchor clamps.

In view of the above-mentioned related technologies, the inventor believes that the conventional pressing type test clamp has the defects of easy abrasion, low test efficiency and low test result accuracy.

SUMMERY OF THE UTILITY MODEL

In order to improve the testing efficiency and accuracy of the power performance test, simplify the operation steps of the power performance test and prolong the service life of the test clamp, the application provides the firing pin type test clamp special for the high-speed cable.

The application provides a special firing pin type test fixture of high-speed cable adopts following technical scheme:

the special firing pin type test fixture for the high-speed cable comprises a clamp body, wherein one end of the clamp body comprises two conductive grooves, the conductive grooves are provided with firing pins, the firing pins are connected with the conductive grooves in a sliding mode, one ends of the firing pins are arranged inside the conductive grooves, and the other ends of the firing pins extend out of the conductive grooves.

By adopting the technical scheme, the firing pin is connected with the conductive groove in a sliding manner, the outer wall of the firing pin is contacted with the inner wall of the conductive groove, and the conductive groove can play a role in limiting and guiding the firing pin. One end of the firing pin extends out of the conductive groove in the original unstressed state; the firing pin is stressed by external pressure during the power performance test and can retract to the inside of the conductive groove; after the power performance test is finished, the firing pin can return to the original unstressed state, and one end of the firing pin extends out of the conductive groove. The striker is freely retractable, and the contact area between the conductor part of the tested cable and the striker is small. Meanwhile, the conductor part is attached to the contact surface of the firing pin, so that the influence of stable heating quantity such as electric noise on the electric performance test is reduced, and the efficiency and accuracy of the electric performance test are improved.

Alternatively, the striker is made of gold plated copper.

By adopting the technical scheme, the manufacturing material of the firing pin is gold-plated copper. The firing pin is the contact part of the test clamp and the cable to be tested, and the gold-plated copper material has good wear resistance and strong oxidation resistance, so that the service life of the clamp is effectively prolonged, and the wear of the contact surface of the test clamp and the cable to be tested is reduced.

Optionally, the conductive slot is further provided with an elastic component.

Through adopting above-mentioned technical scheme, electrically conductive groove sets up elastomeric element, and elastomeric element can provide the firing pin and kick-back when high-speed cable disconnection contact and stretch out the elasticity in electrically conductive groove.

Optionally, the elastic component is a spring, and the spring is located between the bottom of the conductive slot and the striker.

Through adopting above-mentioned technical scheme, elastomeric element is the spring, and the spring uses the spring as elastomeric element for most common, the simplest and simplest elastomeric element in daily life, has reduced the manufacturing cost and the preparation degree of difficulty of test clip.

Optionally, one end of the spring is fixed to the conductive slot, and the other end of the spring is connected to the striker.

By adopting the technical scheme, one end of the spring is connected with the conductive groove, the other end of the spring is connected with the firing pin, when the power performance test is carried out, the firing pin is contacted with the conductor section of the tested cable, the firing pin retracts to connect a signal into the conductive groove under the action of external pressure, and then the spring is subjected to compression force. After the performance test is finished, the striker is disconnected with the conductor of the tested cable, the pressure borne by the striker is reduced to zero, the self elastic force of the spring has an interaction force effect, the reaction force of the spring enables the striker to reset, and the striker returns to the original unstressed state. The sliding connection of conducting groove and firing pin has the resilience with the spring cooperation, and the resilience can make the conductor cross-section of being surveyed the cable closely laminate with the firing pin, and the conductor cross-section is more abundant with the firing pin contact.

Optionally, two internal signal lines are embedded in the clamp body, one end of each internal signal line is connected with the corresponding conductive groove, the other end of each internal signal line is connected with a connector, the connector is located at the other end of the clamp body, and the connector is conductive.

Through adopting above-mentioned technical scheme, inside signal line is embedded in the clamp, and the effect of inside signal line is connected electrically conductive groove and connector, can accurately transmit the connector from electrically conductive groove with the signal in the high-speed cable effectively, then accomplish the test of electric power performance. The other end of the clamp body comprises two connectors, and the connectors are used for connecting the test frame with the electric power performance test equipment. The connector has conductivity, and the clamp can accurately transmit the signal to the power performance test equipment through the connector, and then test of high-speed cable performance is carried out.

Optionally, the conductive slot and the connector are located at two opposite ends of the clip body.

Through adopting above-mentioned technical scheme, electrically conductive groove and connector are located the relative both ends of clamp, and this kind of design can reduce the length of the inside signal line of connecting electrically conductive groove and connector to reach the effect that improves the electrical conductivity.

Optionally, the diameter of the striker ranges from 5 mm to 10 mm.

By adopting the technical scheme, the diameter range of the firing pin is 5 mm to 10 mm, so that the application range of the firing pin type test fixture is expanded, and the test fixture can test high-speed cables with more specifications. At the same time, the diameter range of the striker enables the striker to be in sufficient contact with the conductor section of the high-speed cable.

In summary, the present application has the following beneficial effects:

1. the conductive groove comprises a firing pin and a spring, the outer wall of the firing pin is connected with the inner wall of the conductive groove in a sliding mode, the conductive groove guides the moving direction of the firing pin, and one end of the firing pin extends out of the conductive groove in the original unstressed state.

When the electric performance test is carried out, the firing pin is contacted with the conductor section of the tested cable, the firing pin retracts to connect a signal into the conductive groove under the external pressure, and then the spring is subjected to compression force; after the electric performance test is finished, the striker is disconnected with the conductor of the tested cable, the pressure borne by the striker is reduced to zero, the self elastic force of the spring has an interaction force effect, the reaction force of the spring enables the striker to reset, and the striker returns to the original unstressed state.

The contact surface between the test fixture and the conductor of the tested cable is reduced by the arrangement of the firing pin and the spring, and meanwhile, the firing pin is supported by the gold-plated copper, so that the service life of the test fixture is prolonged, the operation steps during performance test are simplified, and the effects of improving the test efficiency, the accuracy of the test result and the stability of signal transmission are finally realized.

2. The firing pin is made of gold-plated copper material, and the gold-plated copper material has good wear resistance and strong oxidation resistance, so that the service life of the clamp is effectively prolonged, and the wear of the contact surface of the test clamp and the cable to be tested is reduced.

3. The internal signal line is embedded into the clamp body and is used for connecting the conductive groove and the connector, so that signals in the high-speed cable can be effectively and accurately transmitted to the connector from the conductive groove, and then the test of the electric performance is completed.

Drawings

Fig. 1 is a top view of a high-speed cable-dedicated striker-type test fixture according to an embodiment of the present application.

Description of reference numerals:

1. a clip body; 2. a connector; 3. an internal signal line; 4. a conductive slot; 5. a striker; 6. a spring.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a firing pin type test fixture special for a high-speed cable, and the connection between the high-speed cable and a vector network analyzer is taken as an example in the embodiment of the application for explanation. Referring to fig. 1, the high-speed cable special-purpose probe type test fixture comprises a clamp body 1, wherein the clamp body 1 is in a rectangular shape, one end of the clamp body 1 comprises two conductive grooves 4, and the inner walls of the conductive grooves 4 have conductivity. The conductive groove 4 is provided with a firing pin 5, the firing pin 5 is connected with the conductive groove 4 in a sliding manner, one end of the firing pin 5 is arranged in the conductive groove 4, the outer wall of the firing pin 5 is contacted with the inner wall of the conductive groove 4, and the conductive groove 4 can play a role of limiting and guiding the firing pin 5; the other end of the striker 5 protrudes out of the conductive slot 4.

Referring to fig. 1, the striker 5 is in a state of not contacting any object and remaining in an unstressed state, and one end of the striker 5 protrudes out of the conductive slot 4. When one end of the striker 5 extending out of the conductive groove 4 is contacted with the conductor section of the high-speed cable, the striker 5 is pressed on the striker 5 by the high-speed cable and retracts inwards to form a connection signal; when the striker 5 is out of contact with the high speed cable conductor section, the striker 5 returns to the original unstressed state. The striker 5 is arranged to freely stretch and retract, and the contact area between the conductor part of the tested cable and the striker 5 is small; meanwhile, the contact surface of the conductor part and the contact surface of the firing pin 5 are attached, so that the influence of stable heating quantity such as electric noise on the electric performance test is reduced, and the efficiency and the accuracy of the electric performance test are improved. The firing pin 5 is made of gold-plated copper, the firing pin 5 is the contact part of the test clamp and the cable to be tested, and the gold-plated copper has good wear resistance and strong oxidation resistance, so that the service life of the clamp is effectively prolonged, and the wear of the contact surface of the test clamp and the cable to be tested is reduced. The diameter range of the firing pin 5 is 5 mm to 10 mm, so that the application range of the firing pin 5 type test fixture is expanded, and the test fixture can test high-speed cables with more specifications; at the same time, the diameter range of the striker 5 enables the striker 5 to be in sufficient contact with the conductor section of the high-speed cable.

Referring to fig. 1, the conductive slot 4 is further provided with an elastic member, which in the present embodiment is a spring 6.

In other embodiments of the present application, the elastic member may be an elastic block having conductive properties.

Referring to fig. 1, a spring 6 is located between the bottom of the conductive groove 4 and the striker 5, one end of the spring 6 is connected to the conductive groove 4, and the other end of the spring 6 is connected to the striker 5. The core function of the spring 6 is to provide a spring force to spring the striker 5 back out of the conductive slot 4 when the striker 5 is out of contact with the high speed cable. When the electric performance test is carried out, the firing pin 5 is contacted with the conductor section of the tested cable, the firing pin 5 retracts to connect a signal into the conductive groove 4 under the external pressure, and then the spring 6 is subjected to a compression force; after the performance test is finished, the striker 5 is disconnected from the conductor of the tested cable, the pressure borne by the striker 5 is reduced to zero, the self elastic force of the spring 6 has an interaction force effect, the striker 5 is reset by the reaction force of the spring 6, and the striker 5 returns to the original unstressed state. The sliding connection of the conductive groove 4 and the firing pin 5 is matched with the spring 6 to have resilience force, the resilience force can enable the conductor section of the tested cable to be tightly attached to the firing pin 5, and the contact between the conductor section and the firing pin 5 is more sufficient.

Referring to fig. 1, two internal signal lines 3 are embedded in a clip 1, one end of each internal signal line 3 is connected to a conductive slot 4, the other end of each internal signal line 3 is connected to a connector 2, the connector 2 is located at the other end of the clip 1, and the connector 2 has conductivity. The internal signal line 3 functions to connect the conductive groove 4 and the connector 2, and the core functions to accurately transmit a signal from the conductive groove 4 to the connector 2, thereby completing a test of power performance. In the embodiment of the application, the connector 2 is used for connecting the clamp body 1 with a vector network analyzer, and the clamp body 1 transmits signals to the vector network analyzer through the connector 2.

In other embodiments of the present application, the connector 2 may be connected to other power performance testing equipment besides the vector network analyzer.

The principle of the special pin-impacting type test fixture for the high-speed cable provided by the application is as follows:

the clamp body 1 of the high-speed cable special-purpose needle-impacting type test clamp comprises a conductive groove 4, wherein the conductive groove 4 comprises a striker 5 and a spring 6, the striker 5 is positioned at the top of the conductive groove 4, and the spring 6 is positioned at the bottom of the conductive groove 4. The striker 5 is connected with the conductive groove 4 in a sliding manner, the outer wall of the striker 5 is in contact with the inner wall of the conductive groove 4, and one end of the striker 5 extends out of the conductive groove 4 and is used for being connected with a high-speed cable; the other end of the striker 5 is connected to one end of a spring 6.

When the striker 5 does not contact any object, the striker keeps an unstressed state, and one end of the striker 5 extends out of the conductive groove 4; when the electric power performance is tested, a user needs to cut the section of a cable with the measured high speed flat, one end of a firing pin 5, which extends out of a conductive groove 4, is contacted with the section of a conductor of the cable with the measured high speed, the firing pin 5 is pressed by the cable with the measured high speed on the firing pin 5 and retracts inwards into the conductive groove 4, a spring 6 connected with the firing pin 5 is pressed by a compression force, the conductive groove 4 is communicated with a connector 2 through an internal signal wire 3 in a clamp body 1, and signals are accurately transmitted to a vector network analyzer connected with the connector 2; after the electric performance test is finished, the striker 5 is disconnected from the section of the conductor of the high-speed cable to be tested, the pressure borne by the striker 5 is reduced to zero, the striker 5 rebounds out of the conductive groove 4 by the counterforce of the spring 6, one end of the striker 5 extends out of the conductive groove 4, and the striker 5 returns to the original unstressed state.

When the electric performance is tested, the contact surface between the test fixture and the conductor of the tested cable is reduced by the arrangement of the firing pin 5 and the spring 6 in the firing pin type test fixture special for the high-speed cable, and meanwhile, the firing pin 5 is made of gold-plated copper, so that the service life of the test fixture is prolonged, the operation steps during the performance test are simplified, and the effects of improving the test efficiency, the accuracy of the test result and the stability of signal transmission are finally realized. It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a special firing pin type test fixture of high-speed cable which characterized in that: the clamp comprises a clamp body (1), wherein one end of the clamp body (1) comprises two conductive grooves (4), the conductive grooves (4) are provided with firing pins (5), the firing pins (5) are connected with the conductive grooves (4) in a sliding mode, one ends of the firing pins (5) are arranged inside the conductive grooves (4), and the other ends of the firing pins (5) extend out of the conductive grooves (4).

2. The firing pin type test fixture for high-speed cables as claimed in claim 1, wherein: the striker (5) is made of gold-plated copper.

3. The firing pin type test fixture for high-speed cables as claimed in claim 1, wherein: the conductive groove (4) is also provided with an elastic component.

4. The firing pin type test fixture for high-speed cables as claimed in claim 3, wherein: the elastic component is a spring (6), and the spring (6) is positioned between the bottom of the conductive groove (4) and the striker (5).

5. The firing pin type test fixture for high-speed cables as claimed in claim 4, wherein: one end of the spring (6) is fixed with the conductive groove (4), and the other end of the spring (6) is connected with the striker (5).

6. The firing pin type test fixture for high-speed cables as claimed in claim 1, wherein: two inside signal line (3) have been inlayed to the inside of clamp (1), the one end of inside signal line (3) with electrically conductive groove (4) are connected, the other end of inside signal line (3) is connected with connector (2), connector (2) are located the other end of clamp (1), connector (2) have electric conductivity.

7. The firing pin type test fixture for high-speed cables as claimed in claim 6, wherein: the conductive groove (4) and the connector (2) are positioned at two opposite ends of the clamp body (1).

8. The firing pin type test fixture for high-speed cables as claimed in claim 1, wherein: the diameter of the firing pin (5) ranges from 5 mm to 10 mm.