Intelligent state display battery test fixture

Abstract

The utility model provides a battery test fixture capable of intelligently displaying a state, which comprises a four-wire system test fixture, external equipment, a communication line, a four-wire system guide wire and an aviation plug, and has the beneficial effects that the communication line is electrically connected with a communication line interface on the external equipment and a display device on the four-wire system test fixture respectively; an aviation plug is electrically connected with an aviation plug interface on external equipment and a four-wire-system guide wire, the four-wire-system guide wire is electrically connected with a four-wire-system test clamp, manual intervention is not needed after starting, and data change and test state of each test channel can be visually seen; the four-wire system test fixture has the advantages of accurate and reliable test data, capability of completing the test on various types of batteries, convenience in test, good interchangeability, capability of meeting the strength requirement and capability of realizing the test on different types of batteries.

Description

Technical Field

[0001] This utility model relates to the field of test fixture technology, and in particular to an intelligent display status battery test fixture. Background Technology

[0002] With the rapid development of the battery industry, battery capacities are increasing, but battery testing tools are not adequately suited to these larger capacities. Furthermore, when clamping the battery electrodes or tabs, carelessness can lead to the electrodes contacting metal components such as clamp springs or screws, easily causing short circuits and other adverse results. Therefore, clamps that effectively prevent short circuits and ensure proper contact with the battery electrodes are needed.

[0003] However, the clamping structure of current battery clamping formation machines on the market cannot meet the usage requirements. During use, multiple clamps cannot be fixed together, resulting in a scattered and disorganized situation that is inconvenient for users to manage. Furthermore, once the battery is clamped, it is prone to loosening under external force. Currently, the installation method of the power-on clamps in lithium battery capacity grading and formation testing equipment used in the industry is mostly screw fixing. This installation method is inconvenient during production operations, requires more structural components and tools, and takes a longer installation time.

[0004] Polymer batteries, also known as high-polymer lithium batteries, are a type of lithium-ion battery that offers numerous advantages, including high energy density, smaller size, ultra-thin design, lightweight construction, and high safety. During the production of polymer batteries, current or voltage testing is often required to ensure a high yield rate.

[0005] Existing polymer battery test fixtures have poor clamping performance on battery tabs, affecting the stability of the testing process. Furthermore, the current plate structure of existing fixtures is rudimentary, resulting in low detection efficiency for current testing, which is not conducive to high-current testing of batteries. Moreover, it is not possible to intuitively see the data changes and test status of each test channel. Summary of the Invention

[0006] The purpose of this utility model is to solve the above-mentioned technical problems by providing a novel intelligent display status battery test fixture. It is electrically connected to the communication interface of an external device and the display device on the four-wire test fixture via communication lines. It is also electrically connected to the aviation connector interface of an external device and the four-wire conductor via aviation plugs. The four-wire conductor is electrically connected to the four-wire test fixture. After startup, no manual intervention is required, and the data changes and test status of each test channel can be intuitively seen. The four-wire test fixture provides accurate and reliable test data, can test various battery models, is convenient for testing, has good interchangeability, meets strength requirements, and enables testing of different types of batteries.

[0007] This utility model is achieved through the following technical solution:

[0008] A smart display battery test fixture includes a four-wire test fixture, an external device, a communication cable, a four-wire conductor, and an aviation plug. The external device has several communication cable interfaces, and several aviation plug interfaces are located below the communication cable. One end of the communication cable is inserted into and electrically connected to the communication cable interface on the external device. One end of the aviation plug is connected to the aviation plug interface on the external device, and the other end of the aviation plug is connected to one end of the four-wire conductor. The other end of the four-wire conductor is connected to the four-wire test fixture.

[0009] As a further step, the four-wire test fixture includes a positive clamp, a negative clamp, a guide rail, and a display device. The guide rail is provided with a positive clamp and a negative clamp, which can slide left and right on the guide rail. The positive clamp is provided with a display device, which is electrically connected to the other end of the communication line.

[0010] As a further step, the display device includes a display circuit board, a display screen, and display interfaces. The display screen is located on the upper part of the display circuit board, and a plurality of display interfaces are located on the bottom of the display circuit board. The display interfaces are electrically connected to the other end of the communication line.

[0011] As a further step, the positive electrode clamp includes a positive electrode clamp base, a positive electrode upper clamp, a positive electrode connecting rod, a guide post, and a positive electrode contact piece device. The front end of the positive electrode clamp base is provided with a contact piece mounting groove, and protrusions are provided on both sides of the middle part of the positive electrode clamp base. A positive electrode contact piece device is provided between the positive electrode clamp base and the positive electrode upper clamp. The positive electrode upper clamp is movably connected to the protrusions on both sides of the middle part of the positive electrode clamp base through the positive electrode connecting rod, and the positive electrode upper clamp and the positive electrode contact piece device are seamlessly connected and fastened to the positive electrode clamp base through the guide post. The positive electrode upper clamp is provided with a display circuit board mounting groove, and the display circuit board is embedded in the display circuit board mounting groove on the positive electrode upper clamp.

[0012] As a further step, the positive electrode clamp base has a positive electrode contact plate mounting position at the front end, a limiting block inside the positive electrode contact plate mounting position, a cylinder in the middle of the positive electrode clamp base, a contact plate mounting position at the rear end of the positive electrode clamp base, a limiting block inside the contact plate mounting position, a guide rail groove at the bottom of the rear end of the positive electrode clamp base, the guide rail groove at the bottom of the rear end of the positive electrode clamp base is embedded in the left side of the guide rail, and a protrusion at the front left side of the positive electrode clamp base.

[0013] As a further step, the front end of the positive electrode clamp is provided with a contact piece mounting position, and the front end of the positive electrode clamp is provided with a groove on its outer side wall. The groove on the outer side wall of the front end of the positive electrode clamp is embedded in the protrusion on the left front end of the positive electrode clamp base and is seamlessly connected and fastened to the positive electrode clamp base. The positive electrode contact piece device includes a positive electrode contact piece base plate, a positive electrode contact piece gasket, a lower positive electrode contact piece, and an upper positive electrode contact piece. The front end of the positive electrode contact piece base plate is provided with a groove, and the center of the positive electrode contact piece base plate is provided with a through hole. Guide through holes are provided on both sides of the through hole. The positive electrode contact piece base plate is installed in the positive electrode contact piece mounting position at the front end of the positive electrode clamp base. The groove at the front end of the positive electrode contact piece base plate is embedded in the groove. The guide hole in the middle of the positive electrode contact plate base is installed on the cylinder in the middle of the positive electrode clamp base. The tail of the positive electrode contact plate base is embedded in the contact plate mounting position at the rear end of the positive electrode clamp base. A positive electrode contact plate gasket is provided on the front end of the positive electrode contact plate base. A lower positive electrode contact plate is provided on the positive electrode contact plate gasket. The upper positive electrode contact plate is embedded in the contact plate mounting position at the front end of the upper positive electrode clamp. The lower positive electrode contact plate and the upper positive electrode contact plate are pressed together and in contact. A tab is provided on the lower positive electrode contact plate. A tab is provided on the upper positive electrode contact plate. The tabs on the lower positive electrode contact plate and the tabs on the upper positive electrode contact plate are pressed together and in contact.

[0014] As a further step, the negative electrode clamp includes a negative electrode clamp base, a negative electrode upper clamp, a negative electrode connecting rod, a guide post, and a negative electrode contact piece device. The negative electrode clamp base has a contact piece mounting groove on its front end and protrusions on both sides of the middle part of the negative electrode clamp base. A negative electrode contact piece device is provided between the negative electrode clamp base and the negative electrode upper clamp. The negative electrode upper clamp is movably connected to the protrusions on both sides of the middle part of the negative electrode clamp base through the negative electrode connecting rod, and the negative electrode upper clamp and the negative electrode contact piece device are seamlessly connected and fastened to the negative electrode clamp base through the guide post.

[0015] As a further step, the negative electrode clamp base has a negative electrode contact plate mounting position at its front end, and a limiting block is provided within the negative electrode contact plate mounting position. The negative electrode clamp base has a guide hole in its middle section, and a contact plate mounting position is also provided at its rear end, with a limiting block also provided within the contact plate mounting position. A guide rail groove is provided at the bottom of the rear end of the negative electrode clamp base, and the guide rail groove at the bottom of the rear end of the negative electrode clamp base is embedded in the right side of the guide rail. The negative electrode contact plate device includes a negative electrode contact plate base plate, a negative electrode contact plate gasket, a lower negative electrode contact plate, and an upper negative electrode contact plate. The negative electrode contact plate base plate has a groove at its front end and a through hole in its middle section, with the through hole having two sides... The negative electrode contact plate is provided with a guide through hole. The negative electrode contact plate base plate is installed in the negative electrode contact plate mounting position at the front end of the negative electrode clamp base. The groove at the front end of the negative electrode contact plate base plate is embedded in the limiting block. The guide through hole in the middle of the negative electrode contact plate base plate is installed on the cylinder in the middle of the negative electrode clamp base. The tail end of the negative electrode contact plate base plate is embedded in the contact plate mounting position at the rear end of the negative electrode clamp base. A negative electrode contact plate gasket is provided on the front end of the negative electrode contact plate base plate. A lower negative electrode contact plate is provided on the negative electrode contact plate gasket. The upper negative electrode contact plate is embedded in the contact plate mounting position at the front end of the upper negative electrode clamp. The lower negative electrode contact plate and the upper negative electrode contact plate are pressed together and in contact.

[0016] As a further step, the lower negative contact piece is provided with a tab, and the upper negative contact piece is provided with a tab. The tabs on the lower negative contact piece and the tabs on the upper negative contact piece are pressed together and in contact with each other.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) The four-wire test fixture is electrically connected to the communication interface on the external device and the display device on the four-wire test fixture via communication lines. It is also electrically connected to the aviation plug interface on the external device and the four-wire test fixture via aviation plugs. The four-wire test fixture is electrically connected to the four-wire test fixture. After startup, no manual intervention is required, and the data changes and test status of each test channel can be seen intuitively. The four-wire test fixture provides accurate and reliable test data and can complete the test of various battery models. It is convenient to test, has good interchangeability, and can meet the strength requirements, enabling different types of batteries to be tested.

[0019] (2) The structure is simple, the design is ingenious, the space occupied is small, the cost is low, and the work efficiency is improved. The battery test fixture can test large current and large size batteries. At the same time, the test fixture can accommodate multiple batteries, which is convenient for testing, has good interchangeability, and can meet the strength requirements, so that different types of batteries can be tested.

[0020] (3) The positive and negative clamps on the four-wire test fixture are provided with guide rail grooves at the bottom of the rear end. The length and width of the guide rail grooves at the bottom of the positive and negative clamps can be adjusted at any time on the guide rail. It has high strength and convenient connection, and effectively avoids short circuit problems caused by the contact between the battery and the positive and negative contact devices. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the intelligent display status battery testing fixture of this utility model;

[0022] Figure 2 This is an exploded view of the intelligent display status battery testing fixture of this utility model;

[0023] Figure 3 This is a schematic diagram of the four-wire test fixture structure of this utility model;

[0024] Figure 4 This is an exploded view of the four-wire test fixture of this utility model;

[0025] Figure 5 This is a schematic diagram of the four-wire positive electrode clamp structure of this utility model;

[0026] Figure 6 This is an exploded view of the four-wire positive electrode clamp of this utility model;

[0027] Figure 7 This is a schematic diagram of the four-wire negative electrode clamp structure of this utility model;

[0028] Figure 8 This is an exploded view of the four-wire negative electrode clamp of this utility model;

[0029] Reference numerals: 1. Four-wire test fixture; 11. Four-wire positive electrode fixture; 110. Positive electrode fixture base; 1101. Contact plate mounting slot; 1102. Positive electrode contact plate mounting position; 1103. Protrusion; 1104. Limiting block; 111. Upper positive electrode fixture; 1110. Display circuit board mounting slot; 112. Positive electrode connecting rod; 113. Guide post; 114. Positive electrode contact plate assembly; 1140. Positive electrode contact plate gasket; 1141. Lower positive electrode contact plate; 1142. Upper positive electrode contact plate; 1143. Positive electrode contact plate base plate; 12. Four-wire negative electrode. 1. Fixture; 120. Negative electrode fixture base; 121. Upper negative electrode fixture; 122. Negative electrode connecting rod; 123. Guide post; 124. Negative electrode contact piece device; 1240. Negative electrode contact piece base plate; 1241. Negative electrode contact piece gasket; 1242. Lower negative electrode contact piece; 1243. Upper negative electrode contact piece; 13. Guide rail; 14. Display device; 140. Display circuit board; 141. Display screen; 142. Display interface; 2. External equipment; 21. Communication line interface; 22. Aviation plug interface; 3. Communication line; 4. Four-system wire; 5. Aviation plug. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0031] Unless otherwise defined, 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 herein in the specification of the application 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 specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] For reference Figure 1-8As shown, an intelligent display battery test fixture includes a four-wire test fixture, an external device, a communication cable, a four-wire conductor, and an aviation plug. The external device has several communication cable interfaces, and several aviation plug interfaces are located below the communication cable. One end of the communication cable is inserted into the communication cable interface on the external device and is electrically connected. One end of the aviation plug is connected to the aviation plug interface on the external device, and the other end of the aviation plug is connected to one end of the four-wire conductor. The other end of the four-wire conductor is connected to the four-wire test fixture.

[0034] Preferably, the four-wire test fixture includes a four-wire positive clamp, a four-wire negative clamp, a guide rail, and a display device. The guide rail is provided with a positive clamp and a negative clamp, which can slide left and right on the guide rail. The positive clamp is provided with a display device, which is electrically connected to the other end of the communication line.

[0035] Preferably, the display device includes a display circuit board, a display screen, and display interfaces. The display screen is located on the upper part of the display circuit board, and a plurality of display interfaces are located on the bottom of the display circuit board. The display interfaces are electrically connected to the other end of the communication line.

[0036] Preferably, the four-wire positive electrode clamp includes a positive electrode clamp base, a positive electrode upper clamp, a positive electrode connecting rod, a guide post, and a positive electrode contact piece device. The front end of the positive electrode clamp base is provided with a contact piece mounting groove, and protrusions are provided on both sides of the middle part of the positive electrode clamp base. A positive electrode contact piece device is provided between the positive electrode clamp base and the positive electrode upper clamp. The positive electrode upper clamp is movably connected to the protrusions on both sides of the middle part of the positive electrode clamp base through the positive electrode connecting rod, and the positive electrode upper clamp and the positive electrode contact piece device are seamlessly connected and fastened to the positive electrode clamp base through the guide post. The positive electrode upper clamp is provided with a display circuit board mounting groove, and the display circuit board is embedded in the display circuit board mounting groove on the positive electrode upper clamp.

[0037] Preferably, the positive electrode clamp base has a positive electrode contact plate mounting position at the front end, a limiting block inside the positive electrode contact plate mounting position, a cylinder in the middle of the positive electrode clamp base, a contact plate mounting position at the rear end of the positive electrode clamp base, a limiting block inside the contact plate mounting position, a guide rail groove at the bottom of the rear end of the positive electrode clamp base, the guide rail groove at the bottom of the rear end of the positive electrode clamp base is embedded in the left side of the guide rail, and a protrusion at the front left side of the positive electrode clamp base.

[0038] Preferably, the front end of the positive electrode clamp is provided with a contact piece mounting position, and the front end of the positive electrode clamp is provided with a groove on its outer side wall. The groove on the outer side wall of the front end of the positive electrode clamp is embedded in the protrusion on the left front end of the positive electrode clamp base and is seamlessly connected and fastened to the positive electrode clamp base. The positive electrode contact piece device includes a positive electrode contact piece base plate, a positive electrode contact piece gasket, a lower positive electrode contact piece, and an upper positive electrode contact piece. The front end of the positive electrode contact piece base plate is provided with a groove, and the center of the positive electrode contact piece base plate is provided with a through hole. Guide through holes are provided on both sides of the through hole. The positive electrode contact piece base plate is installed in the positive electrode contact piece mounting position at the front end of the positive electrode clamp base, and the groove at the front end of the positive electrode contact piece base plate is embedded in the groove. On the limiting block, the guide through hole in the middle of the positive electrode contact plate base is installed on the cylinder in the middle of the positive electrode clamp base. The tail of the positive electrode contact plate base is embedded in the contact plate mounting position at the rear end of the positive electrode clamp base. A positive electrode contact plate gasket is provided on the front end of the positive electrode contact plate base. A lower positive electrode contact plate is provided on the positive electrode contact plate gasket. The upper positive electrode contact plate is embedded in the contact plate mounting position at the front end of the upper positive electrode clamp. The lower positive electrode contact plate and the upper positive electrode contact plate are pressed together and in contact. A tab is provided on the lower positive electrode contact plate. A tab is provided on the upper positive electrode contact plate. The tabs on the lower positive electrode contact plate and the tabs on the upper positive electrode contact plate are pressed together and in contact.

[0039] Preferably, the four-wire negative electrode clamp includes a negative electrode clamp base, a negative electrode upper clamp, a negative electrode connecting rod, a guide post, and a negative electrode contact piece device. The negative electrode clamp base has a contact piece mounting groove on its front end and protrusions on both sides of the middle part of the negative electrode clamp base. A negative electrode contact piece device is provided between the negative electrode clamp base and the negative electrode upper clamp. The negative electrode upper clamp is movably connected to the protrusions on both sides of the middle part of the negative electrode clamp base through the negative electrode connecting rod, and the negative electrode upper clamp and the negative electrode contact piece device are seamlessly connected and fastened to the negative electrode clamp base through the guide post.

[0040] Preferably, the negative electrode clamp base has a negative electrode contact plate mounting position at its front end, and a limiting block is provided within the negative electrode contact plate mounting position. The negative electrode clamp base has a guide hole in its middle section, and a contact plate mounting position is also provided at its rear end, with a limiting block also provided within the contact plate mounting position. A guide rail groove is provided at the bottom of the rear end of the negative electrode clamp base, and the guide rail groove at the bottom of the rear end of the negative electrode clamp base is embedded in the right side of the guide rail. The negative electrode contact plate device includes a negative electrode contact plate base plate, a negative electrode contact plate gasket, a lower negative electrode contact plate, and an upper negative electrode contact plate. The negative electrode contact plate base plate has a groove at its front end, a through hole in its middle section, and features on both sides of the through hole. The negative electrode contact plate has a guide hole. The negative electrode contact plate base is installed in the negative electrode contact plate mounting position at the front end of the negative electrode clamp base. The groove at the front end of the negative electrode contact plate base is embedded in the limiting block. The guide hole in the middle of the negative electrode contact plate base is installed on the cylinder in the middle of the negative electrode clamp base. The tail end of the negative electrode contact plate base is embedded in the contact plate mounting position at the rear end of the negative electrode clamp base. A negative electrode contact plate gasket is provided on the front end of the negative electrode contact plate base. A lower negative electrode contact plate is provided on the negative electrode contact plate gasket. The upper negative electrode contact plate is embedded in the contact plate mounting position at the front end of the upper negative electrode clamp. The lower negative electrode contact plate and the upper negative electrode contact plate are pressed together and in contact.

[0041] Preferably, the lower negative contact piece is provided with a tab, and the upper negative contact piece is provided with a tab, and the tabs on the lower negative contact piece and the tabs on the upper negative contact piece are pressed together and in contact.

[0042] Based on the disclosure and teachings of the above specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A smart display battery testing fixture, characterized in that: The device includes a four-wire test fixture, an external device, a communication cable, a four-wire conductor, and an aviation connector. The external device has several communication cable interfaces, and the communication cable has several aviation connector interfaces below it. One end of the communication cable is inserted into the communication cable interface on the external device and is electrically connected. One end of the aviation connector is connected to the aviation connector interface on the external device, and the other end of the aviation connector is connected to one end of the four-wire conductor. The other end of the four-wire conductor is connected to the four-wire test fixture.

2. The intelligent display status battery test fixture according to claim 1, characterized in that: The four-wire test fixture includes a positive clamp, a negative clamp, a guide rail, and a display device. The guide rail is provided with a positive clamp and a negative clamp, which can slide left and right on the guide rail. The positive clamp is provided with a display device, which is electrically connected to the other end of the communication line.

3. The intelligent display status battery test fixture according to claim 2, characterized in that: The display device includes a display circuit board, a display screen, and display interfaces. The display screen is located on the upper part of the display circuit board, and several display interfaces are located on the bottom of the display circuit board. The display interfaces are electrically connected to the other end of the communication line.

4. The intelligent display status battery test fixture according to claim 3, characterized in that: The positive electrode clamp includes a positive electrode clamp base, a positive electrode upper clamp, a positive electrode connecting rod, a guide post, and a positive electrode contact piece device. The front end of the positive electrode clamp base is provided with a contact piece mounting groove, and the two sides of the middle part of the positive electrode clamp base are provided with protrusions. A positive electrode contact piece device is provided between the positive electrode clamp base and the positive electrode upper clamp. The positive electrode upper clamp is movably connected to the protrusions on both sides of the middle part of the positive electrode clamp base through the positive electrode connecting rod, and the positive electrode upper clamp and the positive electrode contact piece device are seamlessly connected and fastened to the positive electrode clamp base through the guide post. The positive electrode upper clamp is provided with a display circuit board mounting groove, and the display circuit board is embedded in the display circuit board mounting groove on the positive electrode upper clamp.

5. The intelligent display status battery test fixture according to claim 4, characterized in that: The positive electrode clamp base has a positive electrode contact plate mounting position at the front end, and a limiting block is provided in the positive electrode contact plate mounting position. A cylinder is provided in the middle of the positive electrode clamp base. The positive electrode clamp base also has a contact plate mounting position at the rear end, and a limiting block is also provided in the contact plate mounting position. A guide rail groove is provided at the bottom of the rear end of the positive electrode clamp base. The guide rail groove at the bottom of the rear end of the positive electrode clamp base is embedded in the left side of the guide rail. A protrusion is provided at the front left side of the positive electrode clamp base.

6. The intelligent display status battery test fixture according to claim 5, characterized in that: The positive electrode upper clamp has a contact piece mounting position at its front end, and a slot on its outer side wall. The slot on the outer side wall of the positive electrode upper clamp is embedded in the protrusion at the front left side of the positive electrode clamp base, and is seamlessly connected and fastened to the positive electrode clamp base. The positive electrode contact piece device includes a positive electrode contact piece base plate, a positive electrode contact piece gasket, a lower positive electrode contact piece, and an upper positive electrode contact piece. The front end of the positive electrode contact piece base plate has a groove, and the center of the positive electrode contact piece base plate has a through hole. Guide through holes are provided on both sides of the through hole. The positive electrode contact piece base plate is installed in the positive electrode contact piece mounting position at the front end of the positive electrode clamp base. The groove at the front end of the positive electrode contact piece base plate is embedded in the protrusion at the front left side of the positive electrode clamp base. On the limiting block, the guide through hole in the middle of the positive electrode contact plate base is installed on the cylinder in the middle of the positive electrode clamp base. The tail of the positive electrode contact plate base is embedded in the contact plate mounting position at the rear end of the positive electrode clamp base. A positive electrode contact plate gasket is provided on the front end of the positive electrode contact plate base. A lower positive electrode contact plate is provided on the positive electrode contact plate gasket. The upper positive electrode contact plate is embedded in the contact plate mounting position at the front end of the upper positive electrode clamp. The lower positive electrode contact plate and the upper positive electrode contact plate are pressed together and in contact. A tab is provided on the lower positive electrode contact plate. A tab is provided on the upper positive electrode contact plate. The tabs on the lower positive electrode contact plate and the tabs on the upper positive electrode contact plate are pressed together and in contact.

7. The intelligent display status battery test fixture according to claim 2, characterized in that: The negative electrode clamp includes a negative electrode clamp base, a negative electrode upper clamp, a negative electrode connecting rod, a guide post, and a negative electrode contact piece device. The negative electrode clamp base has a contact piece mounting groove on its front end and protrusions on both sides of the middle part of the negative electrode clamp base. A negative electrode contact piece device is provided between the negative electrode clamp base and the negative electrode upper clamp. The negative electrode upper clamp is movably connected to the protrusions on both sides of the middle part of the negative electrode clamp base through the negative electrode connecting rod, and the negative electrode upper clamp and the negative electrode contact piece device are seamlessly connected and fastened to the negative electrode clamp base through the guide post.

8. The intelligent display status battery test fixture according to claim 7, characterized in that: The negative electrode clamp base has a negative electrode contact plate mounting position at its front end, and a limiting block is provided within the negative electrode contact plate mounting position. A guide hole is provided in the middle of the negative electrode clamp base. A contact plate mounting position is also provided at the rear end of the negative electrode clamp base, and a limiting block is also provided within the contact plate mounting position. A guide rail groove is provided at the bottom of the rear end of the negative electrode clamp base, and the guide rail groove at the bottom of the rear end of the negative electrode clamp base is embedded in the right side of the guide rail. The negative electrode contact plate device includes a negative electrode contact plate base plate, a negative electrode contact plate gasket, a lower negative electrode contact plate, and an upper negative electrode contact plate. A groove is provided at the front end of the negative electrode contact plate base plate, and a through hole is provided in the middle of the negative electrode contact plate base plate. Guides are provided on both sides of the through hole. The negative electrode contact plate base is installed in the negative electrode contact plate mounting position at the front end of the negative electrode clamp base. The groove at the front end of the negative electrode contact plate base is embedded in the limiting block. The guide through hole in the middle of the negative electrode contact plate base is installed on the cylinder in the middle of the negative electrode clamp base. The tail end of the negative electrode contact plate base is embedded in the contact plate mounting position at the rear end of the negative electrode clamp base. A negative electrode contact plate gasket is provided on the front end of the negative electrode contact plate base. A lower negative electrode contact plate is provided on the negative electrode contact plate gasket. The upper negative electrode contact plate is embedded in the contact plate mounting position at the front end of the upper negative electrode clamp. The lower negative electrode contact plate and the upper negative electrode contact plate are pressed together and in contact.

9. The intelligent display status battery test fixture according to claim 8, characterized in that: The lower negative electrode contact piece is provided with a tab, and the upper negative electrode contact piece is provided with a tab. The tabs on the lower negative electrode contact piece and the tabs on the upper negative electrode contact piece are pressed together and in contact.

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