CN219245603U

CN219245603U - Heavy current test fixture

Info

Publication number: CN219245603U
Application number: CN202223527762.6U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shenzhen Xinweier Electronics Co Ltd
Current assignee: Shenzhen Xinweier Electronics Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-23
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a heavy current test fixture, which comprises a bottom part, a pressing module, an upper pressing module, a guide part and a driving part, wherein the guide part is arranged at two ends of the bottom part, the pressing module is arranged above the bottom part, the driving part is arranged above the pressing module, the driving part drives the upper pressing module to press downwards, the upper pressing module presses the lower pressing module downwards through the guide part, and the pressing module is aligned with a current pressing copper block or a voltage pressing copper block on the bottom part to press and contact each other: the structure is simple, the operation is convenient, the current pressing copper blocks or the voltage pressing copper blocks on the lower pressing module aligning bottom part are mutually pressed and contacted, the pulling force of the lug is canceled in the process of clamping the lug, the damage of the internal structure due to the pulling force is avoided, the testing efficiency is improved, the testing precision is ensured, the whole pressing is realized by using the quick manual elbow clamp and the linear bearing for guiding, and the operation is simple, convenient and stable in work.

Description

Heavy current test fixture

Technical Field

The utility model relates to the technical field of test fixtures, in particular to a high-current test fixture.

Background

With the development of scientific technology, the application of lithium batteries is spread throughout various industries, and the lithium batteries are required to be put into use through performance tests, and in the current various performance tests, a tab probe or a copper sheet clamp is inevitably required to ensure good contact between the test connection press and the tab.

In the existing lithium battery test probes or copper sheet clamps, most of the probes or copper sheets are directly pressed on the lugs by adopting simple four-bar mechanism quick clamps, and as the clamp precision is low, the lugs are difficult to ensure not to be scratched or elongated, and meanwhile, the compatibility of different batteries is difficult to grasp.

Along with the popularization of new energy, the application of the battery is also becoming wider and wider. The battery must pass through the test link before leaving the factory, and the anchor clamps that present use in the test process of heavy current battery are easy to generate heat in the test process of heavy current battery to lead to the test accuracy not high, and then can damage battery and test anchor clamps etc. and even probably the conflagration happens when serious.

The Chinese patent document CN214750728U is characterized by comprising an adjusting bolt, a pressing plate, a current plate, an elastic voltage plate and an insulating bottom plate which are arranged in a stacked manner; the voltage plate, the current plate and the elastic voltage plate are provided with vertical through holes, the adjusting bolts penetrate through the vertical through holes and then are connected with the insulating bottom plate, and the adjusting bolts are used for adjusting the distance between the voltage plate, the current plate and the elastic voltage plate so as to clamp or loosen positive and negative electrode lugs of the battery cells of the battery to be tested. The high-current battery testing clamp is convenient and quick to install and use, and the testing efficiency of the battery can be effectively improved; the current contact area between the clamp and the positive and negative lugs of the battery cell of the battery to be tested is increased, the impedance is reduced, the heating is reduced, and the test stability and the test precision are improved.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a novel high-current test fixture.

The utility model is realized by the following technical scheme:

the utility model provides a heavy current test fixture, includes bottom part, pushes down the module, pushes up module, guide part, drive part, bottom part both ends are equipped with guide part, bottom part top is equipped with pushes down the module, it is equipped with drive part to push down the module top, drive part drives upward the module and pressurizes downwards, upward the module is through guide part downward to pushing down the module and exert pressure, the current that pushes down the module and aim at on the bottom part presses down copper block or voltage and presses copper block mutual pressfitting and contact.

Further, the bottom part includes bottom body, electric current presses the copper billet, voltage presses copper billet, isolation piece, screw, bottom body both sides are equipped with the guide bar mounting hole, be equipped with the cavity on the bottom body, be equipped with electric current in the cavity and press the copper billet, electric current presses the copper billet top to be equipped with voltage and presses the copper billet, electric current press the copper billet with be equipped with the isolation piece between the voltage presses the copper billet, the screw presses copper billet, voltage press copper billet, isolation piece locking with electric current in the cavity on the bottom body, and fix on the bottom body.

Further, round holes are formed in two sides of the pressing module.

Further, round holes are formed in two sides of the upper pressing module, a driving part mounting hole is formed in the middle of the upper pressing module, and spring mounting holes are formed in two sides of the driving part mounting hole.

Further, the guide part comprises a guide rod and a linear bearing, one end of the linear bearing penetrates through round holes on two sides of the upper pressing module and is fixed on the upper pressing module, one end of the guide rod penetrates through the linear bearing and round holes on two sides of the lower pressing module and is connected with guide rod mounting holes on two sides of the bottom body and is fixed on the bottom body, and the other end of the guide rod is connected with the driving part.

Further, the driving component comprises a driving fixing plate, a connecting screw, a manual elbow clamping component, a connecting bearing and a nut, the other end of the guide rod is connected with the driving fixing plate, a connecting screw through hole is formed in the middle of the driving fixing plate, one end of the connecting screw penetrates through the connecting screw through hole and is locked on the driving fixing plate through the nut and is connected with the manual elbow clamping component, and the other end of the connecting screw penetrates through a driving component mounting hole in the middle of the upper pressing module and is fixed in the middle of the upper pressing module through the nut.

Further, a spring component is arranged between the lower pressing module and the upper pressing module, the spring component comprises a spring connecting rod and a spring, the spring connecting rod penetrates through a spring mounting hole on the upper pressing module to be connected with the lower pressing module, and a spring is sleeved on the spring connecting rod.

Further, the manual elbow clamp part comprises a manual elbow clamp, a connecting piece and a connecting shaft, wherein the upper part of the connecting screw is movably connected with the manual elbow clamp through the connecting shaft, the upper end of the connecting piece is connected with the manual elbow clamp, and the lower end of the connecting piece is fixedly connected with the nut through a bolt.

Further, the current pressing copper block and the voltage pressing copper block are provided with lug positions.

The utility model has the beneficial effects that:

(1) The high-current testing clamp is simple in structure, convenient to operate, low in cost, good in performance of the high-current testing clamp, good in compatibility with different batteries, and capable of guaranteeing perfect isolation between a current wire and a voltage wire;

(2) The bottom part is provided with the current pressing copper block, the voltage pressing copper block and the isolation block, and the lower pressing module is aligned to the current pressing copper block or the voltage pressing copper block on the bottom part to be mutually pressed and contacted, so that the pulling force on the tab is eliminated in the process of clamping the tab, and the damage of the internal structure due to the pulling force is avoided;

(3) The whole pressing adopts the application of rapid manual elbow clamp and linear bearing guide, but the operation is simple and stable in work.

Drawings

FIG. 1 is a schematic diagram of a large current test fixture according to the present utility model;

FIG. 2 is a schematic diagram of a frying structure of the high-current test fixture according to the present utility model;

reference numerals: 1. a bottom member; 11. a bottom body; 12. current presses the copper block; 13. the voltage presses the copper block; 14. a spacer block; 15. a screw; 16. a cavity; 2. a pressing module; 21. a round hole; 22. a silicone plate; 3. a pressing module; 31. a round hole; 32. a driving part mounting hole; 33. a spring mounting hole; 4. a guide member; 41. a guide rod; 42. a linear bearing; 5. a driving part; 51. driving the fixing plate; 52. a connecting screw; 53. a manual toggle clamp member; 530. a manual toggle clamp; 531. a connecting piece; 532. a connecting shaft; 533. a plug pin; 54. connecting a bearing; 55. a nut; 6. a spring member; 61. a spring connecting rod; 62. and (3) a spring.

Detailed Description

The utility model is further described with reference to the accompanying drawings and detailed description below:

unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1-2, a high-current test fixture comprises a bottom part 1, a pressing module 2, an upper pressing module 3, a guide part 4 and a driving part 5, wherein the guide parts 4 are arranged at two ends of the bottom part 1, the pressing module 2 is arranged above the bottom part 1, the driving part 4 is arranged above the pressing module 2, the driving part 4 drives the upper pressing module 3 to press downwards, the pressing module 3 presses the pressing module 2 downwards through the guide part 4, and the pressing module 2 is aligned with a current pressing copper block 12 or a voltage pressing copper block 13 on the bottom part 1 to press and contact each other.

Preferably, the bottom part 1 comprises a bottom body 11, a current pressing copper block 12, a voltage pressing copper block 13, an isolation block 14 and a screw 15, wherein guide rod mounting holes are formed in two sides of the bottom body 11, a cavity 16 is formed in the bottom body 11, the current pressing copper block 12 is arranged in the cavity 16, the voltage pressing copper block 13 is arranged above the current pressing copper block 12, the isolation block 14 is arranged between the current pressing copper block 12 and the voltage pressing copper block 13, and the screw 15 locks the current pressing copper block 12, the voltage pressing copper block 13 and the isolation block 14 in the cavity 16 on the bottom body 11 and is fixed on the bottom body 11.

Preferably, round holes 21 are arranged on two sides of the pressing module 2.

Preferably, round holes 31 are formed in two sides of the upper pressing module 3, a driving part mounting hole 32 is formed in the middle of the upper pressing module 3, and spring mounting holes 33 are formed in two sides of the driving part mounting hole 32.

Preferably, the guide member 4 includes a guide bar 41 and a linear bearing 42, one end of the linear bearing 42 passes through the circular holes 31 on both sides of the upper pressing module 3 and is fixed to the upper pressing module 3, one end of the guide bar 41 passes through the linear bearing 42 and the circular holes 21 on both sides of the lower pressing module 2, is connected to the guide bar mounting holes on both sides of the bottom body 11, and is fixed to the bottom body 11, and the other end of the guide bar 41 is connected to the driving member 5.

Preferably, the driving part 5 includes a driving fixing plate 51, a connection screw 52, a manual toggle clamp part 53, a connection bearing 54, and a nut 55, the other end of the guide rod 41 is connected with the driving fixing plate 51, a connection screw through hole is provided in the middle of the driving fixing plate 51, one end of the connection screw 52 passes through the connection screw through hole and is locked on the driving fixing plate 51 by the nut 55 and is connected with the manual toggle clamp part 53, and the other end of the connection screw 52 passes through the driving part mounting hole 32 in the middle of the upper die block 3 and is fixed in the middle of the upper die block 3 by the nut 55.

Preferably, a spring component 6 is arranged between the pressing module 2 and the pressing module 3, the spring component 6 comprises a spring connecting rod 61 and a spring 62, the spring connecting rod 61 passes through a spring mounting hole 33 on the pressing module 3 to be connected with the pressing module 2, and the spring 62 is sleeved on the spring connecting rod 61.

Preferably, the manual elbow clamp component 53 includes a manual elbow clamp 530, a connecting piece 531, and a connecting shaft 532, the upper portion of the connecting screw 52 is movably connected with the manual elbow clamp 530 through the connecting shaft 532, the upper end of the connecting piece 531 is connected with the manual elbow clamp 530, and the lower end of the connecting piece 531 is fixedly connected with the nut 55 through a bolt 533.

Preferably, the current pressing copper block 12 and the voltage pressing copper block 13 are provided with tab positions.

Preferably, the bottom of the pressing module 2 is provided with a silica gel plate, and the silica gel plate at the bottom of the pressing module 2 is aligned with the current pressing copper block 12 or the voltage pressing copper block 13 on the bottom part 1 to be pressed and contacted with each other.

Modifications and variations of the above embodiments will be apparent to those skilled in the art in light of the above teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims

1. The utility model provides a heavy current test fixture which characterized in that: the device comprises a bottom part, a pressing module, an upper pressing module, a guide part and a driving part, wherein the guide parts are arranged at two ends of the bottom part, the pressing module is arranged above the bottom part, the driving part is arranged above the pressing module, the driving part drives the upper pressing module to press downwards, the upper pressing module presses downwards the lower pressing module through the guide part, and the lower pressing module is aligned with the current pressing copper blocks or the voltage pressing copper blocks on the bottom part to press and contact each other.

2. The high current test fixture of claim 1, wherein: the bottom part includes bottom body, electric current presses the copper billet, voltage presses copper billet, isolation piece, screw, bottom body both sides are equipped with the guide bar mounting hole, be equipped with the cavity on the bottom body, be equipped with electric current in the cavity and press the copper billet, electric current presses the copper billet top to be equipped with voltage and presses the copper billet, electric current press the copper billet with be equipped with the isolation piece between the voltage press the copper billet, the screw presses copper billet, voltage press copper billet, isolation piece locking with electric current in the cavity on the bottom body, and fix on the bottom body.

3. The high current test fixture of claim 1, wherein: round holes are formed in two sides of the lower pressing module.

4. The high current test fixture of claim 1, wherein: the upper pressing module is characterized in that round holes are formed in two sides of the upper pressing module, a driving part mounting hole is formed in the middle of the upper pressing module, and spring mounting holes are formed in two sides of the driving part mounting hole.

5. The high current test fixture of claim 4, wherein: the guide part comprises a guide rod and a linear bearing, one end of the linear bearing penetrates through round holes on two sides of the upper pressing module and is fixed on the upper pressing module, one end of the guide rod penetrates through round holes on two sides of the linear bearing and the lower pressing module and is connected with guide rod mounting holes on two sides of the bottom body and is fixed on the bottom body, and the other end of the guide rod is connected with the driving part.

6. The high current test fixture of claim 5, wherein: the driving component comprises a driving fixing plate, a connecting screw, a manual elbow clamping component, a connecting bearing and a nut, wherein the other end of the guide rod is connected with the driving fixing plate, a connecting screw through hole is formed in the middle of the driving fixing plate, one end of the connecting screw penetrates through the connecting screw through hole and is locked on the driving fixing plate through the nut and is connected with the manual elbow clamping component, and the other end of the connecting screw penetrates through a driving component mounting hole in the middle of the upper pressing module and is fixed in the middle of the upper pressing module through the nut.

7. The high current test fixture of claim 4, wherein: the spring component is arranged between the pressing module and the upper pressing module and comprises a spring connecting rod and a spring, the spring connecting rod penetrates through a spring mounting hole on the upper pressing module to be connected with the pressing module, and the spring connecting rod is sleeved with the spring.

8. The high current test fixture of claim 6, wherein: the manual elbow clamp part comprises a manual elbow clamp, a connecting piece and a connecting shaft, wherein the upper part of the connecting screw is movably connected with the manual elbow clamp through the connecting shaft, the upper end of the connecting piece is connected with the manual elbow clamp, and the lower end of the connecting piece is fixedly connected with the nut through a bolt.

9. The high current test fixture of claim 2, wherein: and the current pressing copper block and the voltage pressing copper block are provided with lug positions.