A battery test fixture

Abstract

The application discloses a battery test tool, which comprises a battery cell clamping assembly, a connecting copper bar, a baffle and an extrusion assembly. The battery cell clamping assembly forms a clamping cavity for accommodating a battery cell and a side opening communicating with the clamping cavity. The connecting copper bar has a pressing head part in contact with a pole of the battery cell, and the connecting copper bar is at least partially located outside the clamping cavity, and the pressing head part is located in the clamping cavity. The baffle is detachably connected to the battery cell clamping assembly, and the baffle covers part of the side opening. The extrusion assembly is arranged on the baffle and extends into the clamping cavity, and the extrusion assembly is used for elastically abutting against the pressing head part, so that the pressing head part and the pole of the battery cell are kept in contact. The battery test tool provided by the application has the advantages of simple structure, convenient operation, high test stability, and the like, and the acquisition of welding equipment, the debugging of the welding equipment and the arrangement of professional operators are omitted, so that the connecting process is greatly simplified, the manufacturing period is significantly shortened, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery testing fixture. Background Technology

[0002] With the increasing number and variety of battery cells, cell testing has become increasingly important. In existing technologies, the battery cell terminals are typically connected to the charging / discharging equipment via welding during testing. However, this step is particularly complex in practice. First, specialized testing fixtures are required, and the preparation and debugging of these fixtures are inherently cumbersome. Second, obtaining welding equipment is often difficult, requiring significant time and resources for preparation and debugging, as well as specialized operators for precise operation. This significantly increases the complexity of the entire connection process and greatly extends the manufacturing cycle. Furthermore, the terminals may suffer varying degrees of damage after welding, affecting the overall performance and stability of the tested battery cell in later use. Therefore, this traditional welding connection method presents numerous inconveniences and potential risks in practical applications. Utility Model Content

[0003] To solve one of the above-mentioned technical problems, this utility model provides a battery testing fixture.

[0004] The present invention adopts the following technical solution:

[0005] This application provides a battery testing fixture, including:

[0006] A battery cell clamping assembly, wherein the battery cell clamping assembly forms a clamping cavity and a side opening communicating with the clamping cavity, the clamping cavity being used to accommodate a battery cell;

[0007] A connecting copper busbar has a pressure head that contacts and engages with the terminal of the battery cell. The connecting copper busbar is at least partially located outside the clamping cavity, and the pressure head is located within the clamping cavity.

[0008] A baffle, which is detachably connected to the cell clamping assembly and covers a portion of the side opening;

[0009] A pressing assembly is disposed on the baffle and extends into the clamping cavity. The pressing assembly is used to elastically abut against the pressing head, so that the pressing head and the electrode post of the battery cell remain in contact.

[0010] Optionally, a first contact surface and a second contact surface are respectively provided on opposite sides of the pressure head;

[0011] The first contact surface is used to make contact with the terminal post of the battery cell, and the second contact surface is used to make contact with the extrusion assembly;

[0012] The first contact surface has multiple protrusions.

[0013] Optionally, the extrusion assembly includes an extruder and a drive member;

[0014] The extrusion member is movably disposed through the extrusion plate, and one end of the extrusion member extends into the clamping cavity;

[0015] The driving component and the extruder are driven together, and the driving component can drive the extruder to move in a direction perpendicular to the baffle to extrude or release the pressure head.

[0016] Optionally, the extrusion member includes a screw and an elastic element;

[0017] The screw passes through the baffle;

[0018] The elastic element is located within the clamping cavity and is connected to the end of the screw;

[0019] The driving component includes a nut, which is rotatably mounted on the baffle and threadedly connected to the screw. Rotation of the nut can drive the screw to move in a direction perpendicular to the baffle, thereby causing the elastic element to squeeze or release the pressure head.

[0020] Optionally, the extrusion assembly includes a first display and a first pressure sensor;

[0021] The first pressure sensor is disposed on the elastic element or screw;

[0022] The first display is disposed on the screw and is electrically connected to the first pressure sensor.

[0023] Optionally, the connecting copper busbar includes a copper busbar plate, one end of which is provided with the pressure head, and the other end of which is provided with a threaded groove;

[0024] In the direction perpendicular to the copper busbar, the extension dimension of the pressure head is greater than the extension dimension of the copper busbar.

[0025] Optionally, the baffle is provided with an elongated groove;

[0026] The extrusion assembly is disposed through the elongated groove;

[0027] The extrusion assembly can move along the elongated groove.

[0028] Optionally, the cell clamping assembly includes a base plate and two side plates;

[0029] Two side plates are spaced apart, and the bottom plate baffle is located between the two side plates, forming the clamping cavity between the two side plates and the bottom plate;

[0030] The baffle and the bottom plate are respectively disposed on opposite sides of the side plate;

[0031] The baffle is fixed to the two side plates by fasteners.

[0032] Optionally, some of the adjusting components pass through the base plate and the two side plates;

[0033] A portion of the adjustment element passes through the two side plates and the clamping cavity between the two side plates;

[0034] The rotation of the adjusting component can drive the relative movement of the two side plates to adjust the squeezing force on the battery cell.

[0035] Optionally, a second pressure sensor and a second display are provided on one of the side plates;

[0036] The second display is disposed on the side of the side plate opposite to the clamping cavity;

[0037] The second display is electrically connected to the second pressure sensor.

[0038] By adopting the above technical solution, this application has the following beneficial effects:

[0039] The battery testing fixture provided in this application, when in use, precisely forms a clamping cavity through the cell clamping assembly, which can stably and reliably accommodate the cell, providing a stable foundation for subsequent testing. The pressing assembly compresses the pressure head connecting the copper busbar, ensuring that the pressure head and the cell's terminal post maintain good contact at all times, effectively improving the accuracy and stability of battery testing. Furthermore, the layout of the copper busbar connection portion located outside the clamping cavity ensures both reliable connection to external charging and discharging equipment and ease of operation. The detachable baffle can be flexibly installed and removed according to actual needs, facilitating the installation of the cell into the testing fixture and the removal of the tested cell.

[0040] The battery testing fixture provided in this application features a simple structure, convenient operation, and high testing stability. It eliminates the need for welding of the cell terminals during testing, avoiding damage caused by welding and thus ensuring the overall performance and stability of the tested cell in later use. Furthermore, it eliminates the need for acquiring and debugging welding equipment and employing specialized operators, greatly simplifying the connection process, significantly shortening the manufacturing cycle, and reducing production costs. It effectively solves the problems existing in current technologies, providing a more reliable and efficient solution for cell testing.

[0041] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0042] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0043] Figure 1 This diagram illustrates the structure of the battery testing fixture provided in an embodiment of this application.

[0044] Figure 2 This diagram shows a partially enlarged structural view of the extrusion assembly of the battery testing fixture provided in an embodiment of this application;

[0045] Figure 3 This diagram shows the structure of the battery testing fixture provided in this embodiment after the limiting component has been removed.

[0046] Figure 4 This diagram shows the structure of the battery testing fixture provided in this application after removing the limiting member and the baffle.

[0047] Figure 5 This is a partially enlarged structural diagram of the battery testing fixture provided in this application embodiment after removing the limiting member and the baffle;

[0048] Figure 6 This is a side view of the structure of the battery testing fixture provided in an embodiment of this application at the drive component and the limiting component;

[0049] Figure 7 This diagram shows the structural schematic of the connecting copper busbar of the battery testing fixture provided in an embodiment of this application;

[0050] Figure 8 This diagram illustrates the structure of the cell clamping assembly of the battery testing fixture provided in an embodiment of this application.

[0051] In the figure: 1. Battery cell clamping assembly, 11. Base plate, 12. Side plate, 101. Clamping cavity, 102. Side opening, 2. Connecting copper busbar, 21. Copper busbar piece, 211. Threaded groove, 22. Pressing head, 221. First contact surface, 221. Protrusion, 2211. Second contact surface, 222. Baffle, 3. Long groove, 31. Extrusion assembly, 4. Extrusion piece, 41. Screw, 411. Elastic piece, 412. Drive piece, 42. First display, 43. Battery cell, 5. Terminal post, 51. Adjustment piece, 6. Connector, 7. Second display, 8. Limiting piece, 9. Pressing plate, 91. Mounting piece, 92. Connecting piece, 93.

[0052] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0054] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] like Figures 1 to 8 As shown in the embodiments of this application, a battery testing fixture is described in detail, including a cell clamping assembly 1, a connecting copper busbar 2, a baffle 3, and a pressing assembly 4. The cell clamping assembly 1 forms a clamping cavity 101 and a side opening 102 communicating with the clamping cavity 101, the clamping cavity 101 being used to accommodate a cell 5. The connecting copper busbar 2 has a pressing head 22 that contacts and engages with the terminal post 51 of the cell 5. The connecting copper busbar 2 is at least partially located outside the clamping cavity 101, and the pressing head 22 is located within the clamping cavity 101. The baffle 3 is detachably connected to the cell clamping assembly 1, and the baffle 3 covers a portion of the side opening 102. The pressing assembly 4 is disposed on the baffle 3 and extends into the clamping cavity 101. The pressing assembly 4 is used to elastically abut against the pressing head 22, so that the pressing head 22 and the terminal post 51 of the cell 5 remain in contact.

[0057] When used, the battery testing fixture provided in this application precisely forms a clamping cavity 101 through the cell clamping assembly 1, which can firmly and reliably clamp the cell 5, providing a stable foundation for subsequent testing. The pressing assembly 4 presses the pressure head connecting the copper busbar 2, ensuring that the pressure head 22 and the terminal post 51 of the cell 5 always maintain good contact, effectively improving the accuracy and stability of battery testing. Furthermore, the layout of the copper busbar 2 portion located outside the clamping cavity 101 ensures both reliable connection to external charging and discharging equipment and ease of operation. The baffle 3 can be flexibly installed and removed according to actual needs, facilitating the installation of the cell 5 into the testing fixture and the removal of the tested cell 5.

[0058] The battery testing fixture provided in this application features a simple structure, convenient operation, and high testing stability. During testing, there is no need to weld the terminals 51 of the battery cell 5, avoiding damage to the terminals 51 caused by welding, thus ensuring the overall performance and stability of the tested battery cell 5 in later use. Simultaneously, it eliminates the need for acquiring and debugging welding equipment and equipping professional operators, greatly simplifying the connection process, significantly shortening the manufacturing cycle, and reducing production costs. It effectively solves the problems existing in the prior art, providing a more reliable and efficient solution for the testing of battery cells 5.

[0059] In some possible implementations, a first contact surface 221 and a second contact surface 222 are respectively provided on opposite sides of the pressure head 22. The first contact surface 221 is used to contact and cooperate with the terminal post 51 of the battery cell 5, and the second contact surface 222 is used to contact and cooperate with the extrusion assembly 4. The first contact surface 221 has multiple protrusions 2211. If the first contact surface 221 is flat, due to manufacturing tolerances, large areas of non-contact may occur, resulting in poor contact. The surface of the terminal post 51 is often made of aluminum alloy. The multiple protrusions 2211 on the first contact surface 221 cause a slight deformation at the contact point between the pressure terminal post 51 and the protrusions 2211. This design increases the stability and reliability of the contact when the pressure head 22 contacts the terminal post 51 of the battery cell 5. The multiple protrusions 2211 can better embed into the surface of the terminal post 51 and also prevent slippage or displacement. Simultaneously, the cooperation between the second contact surface 222 and the extrusion assembly 4 ensures the uniform transmission of extrusion force, further guaranteeing the accuracy of the test. In practice, the pressure head 22 of this structural design can adapt to battery cells 5 poles 51 of different shapes and sizes, improving the versatility and flexibility of battery testing fixtures.

[0060] Furthermore, the protrusion 2211 is a conical tooth, with the bottom surface of the cone connected to the first contact surface 221, and the top surface of the cone extending away from the first contact surface 221. The conical design of the protrusion 2211 makes the overall structure more stable and facilitates production setup.

[0061] In some possible implementations, the extrusion assembly 4 includes an extruder 41 and a drive member 42. The extruder 41 is movably disposed through the extrusion plate, with one end extending into the clamping cavity 101. The drive member 42 is driven by the extruder 41, and the drive member 42 can drive the extruder 41 to move in a direction perpendicular to the baffle 3 to extrude or release the pressure head 22. This design allows the extrusion assembly 4 to precisely control the extrusion force on the pressure head 22. The drive member 42 can control the movement of the extruder 41 manually, electrically, or otherwise, thereby adjusting the extrusion force according to actual testing requirements. In practical applications, this adjustable extrusion method can adapt to battery cells 5 with different specifications and testing requirements, improving the applicability and testing accuracy of the battery testing fixture. At the same time, the cooperative design of the extruder 41 and the drive member 42 also makes the entire extrusion process more stable and reliable, reducing testing errors caused by improper operation or equipment failure.

[0062] In some possible implementations, the extrusion member 41 includes a screw 411 and an elastic member 412. The screw 411 passes through the baffle 3, and the elastic member 412 is located within the clamping cavity 101 and connected to the end of the screw 411. The driving member 42 includes a nut, which is rotatably mounted on the baffle 3 and threadedly connected to the screw 411. Rotation of the nut drives the screw 411 to move in a direction perpendicular to the baffle 3, thereby causing the elastic member 412 to extrude or release the pressure head 22. This design utilizes the screw drive principle to achieve precise control of the movement of the extrusion member 41. The addition of the elastic member 412 serves as a buffer and protector, preventing damage to the battery cell 5 terminal 51 due to excessive extrusion force. In actual operation, the user only needs to rotate the nut to adjust the extrusion force, making the operation simple and intuitive.

[0063] Furthermore, the baffle 3 is provided with a limiting member 9, which includes a pressure plate 91, a mounting plate 92, and a connecting plate 93. The pressure plate 91 and the mounting plate 92 are parallel to the baffle 3, and the mounting plate 92 is connected to the baffle 3. The nut is limited between the pressure plate 91 and the baffle 3. The pressure plate 91 and the baffle 3 together limit the nut in the direction perpendicular to the baffle 3, ensuring that when the nut is rotated, its height remains unchanged, and the screw 411 rises and falls to drive the elastic member 412 to squeeze or release the pressure head 22. It should be noted that when rotating the nut, external force is needed to limit the rotation of the screw 411, such as by holding the end of the screw 411 with your hand, so that the screw 411 can only move up and down without rotating. The nut can be rotated manually or with the help of a tool. The end of the screw 411 can be provided with a structure for easy gripping, such as a rectangular block structure, as shown in the first display 43 below.

[0064] In some possible implementations, the extrusion assembly 4 includes a first display 43 and a first pressure sensor. The first pressure sensor is disposed on the elastic element 412 or the screw 411, and the first display 43 is disposed on the screw 411 and electrically connected to the first pressure sensor. This design allows the user to monitor pressure changes during the extrusion process in real time, thereby enabling more precise control of the extrusion force. The first pressure sensor accurately senses the pressure on the elastic element 412 or the screw 411 and transmits the data to the first display 43 for display. The user can adjust the rotation of the nut based on the data on the display to achieve the optimal extrusion force. This real-time monitoring and feedback mechanism greatly improves the accuracy and reliability of battery testing.

[0065] This application does not improve the pressure sensor. The first pressure sensor can be a commercially available and technologically mature pressure sensor. Therefore, this application will not elaborate on the structure, connection method, setting method and usage of the first pressure sensor, but will directly adopt the existing and publicly disclosed structural technology.

[0066] In some possible implementations, the connecting copper busbar 2 includes a copper strip 21, one end of which is provided with the pressure head 22, and the other end of which is provided with a threaded groove 211. In the direction perpendicular to the copper strip 21, the extension dimension of the pressure head 22 is larger than the extension dimension of the copper strip 21. The copper strip 21 extends beyond the pressure head 22 and extends beyond the cell clamping assembly 1, making it more convenient to connect external charging and discharging equipment. At the same time, the design that the extension dimension of the pressure head 22 is larger than that of the copper strip 21 makes the pressure head 22 more stable and reliable when in contact with the cell terminal 51, and reduces unnecessary material usage.

[0067] In some possible implementations, the baffle 3 is provided with an elongated groove 31, through which the extrusion assembly 4 is disposed, and the extrusion assembly 4 can move along the elongated groove 31. This design allows the position of the extrusion assembly 4 on the baffle 3 to be adjusted according to actual needs, thereby accommodating the testing of battery cells 5 of different sizes and shapes. The elongated groove 31 provides sufficient adjustment space, allowing the extrusion assembly 4 to move flexibly on the baffle 3. In actual operation, the user can adjust the position of the extrusion assembly 4 according to the size of the battery cell 5 and the testing requirements. This adjustable design greatly improves the versatility and flexibility of the battery testing fixture.

[0068] In some possible implementations, the cell clamping assembly 1 includes a base plate 11 and two side plates 12. The two side plates 12 are spaced apart, and a baffle 3 of the base plate 11 is located between the two side plates 12, forming the clamping cavity 101 between the two side plates 12 and the base plate 11. The baffle 3 and the base plate 11 are respectively located on opposite sides of the side plates 12. The baffle 3 is fixed to the two side plates 12 by fasteners. The base plate 11 provides support force when the extrusion assembly 4 extrudes the electrode post 51. The two side plates 12 clamp the cell 5 from both sides, preventing deformation of the cell 5 and ensuring the accuracy of the charge and discharge test structure. The connection method of the fasteners of the baffle 3 allows the baffle 3 to be easily installed and removed, facilitating the insertion and removal of the cell 5.

[0069] In some possible implementations, a portion of the adjusting member 6 passes through the base plate 11 and the two side plates 12, and another portion of the adjusting member 6 passes through the clamping cavity 101 between the two side plates 12. Rotation of the adjusting member 6 drives relative movement of the two side plates 12, adjusting the compressive force on the battery cell 5. This design allows the battery cell clamping assembly 1 to adaptively adjust to battery cells 5 of different sizes. Furthermore, rotating the adjusting member 6 drives relative movement of the two side plates 12, thereby changing the size of the clamping cavity 101 and the compressive force on the battery cell 5. This adaptive adjustment design greatly improves the versatility and applicability of the battery testing fixture, enabling the same fixture to adapt to the testing of battery cells 5 of different sizes and specifications.

[0070] Furthermore, the connector 7 passes through the baffle 3 and connects to the side plate 12, which enhances the structural stability of the entire battery testing fixture and provides a reliable connection between the baffle 3 and the side plate 12.

[0071] Furthermore, two through slots are provided at both ends of the baffle 3, and the extension direction of the two through slots is perpendicular to the extension direction of the elongated groove 31. One end of the connector 7 passes through the elongated groove 31 and connects to the side plate 12. The through slots allow the connector 7 to have a certain adjustment space in the direction perpendicular to the elongated groove 31, thereby enabling more precise positioning of the baffle 3 to adapt to the testing needs of battery cells 5 with different shapes and sizes. In actual operation, the user can achieve precise installation and fixation of the baffle 3 by adjusting the position of the connector 7 in the through slots and the elongated groove 31 according to the specific situation of the battery cell 5.

[0072] In some possible implementations, a second pressure sensor and a second display 8 are provided on one of the side plates 12. The second display 8 is located on the side of the side plate 12 opposite to the clamping cavity 101 and is electrically connected to the second pressure sensor. This design allows the user to monitor the pressure changes experienced by the battery cell 5 in real time during testing. The second pressure sensor can accurately sense the squeezing force of the side plate 12 on the battery cell 5 and transmit the data to the second display 8 for display. The user can understand the stress on the battery cell 5 based on the data on the display, thereby determining whether the testing process is normal. This real-time monitoring mechanism helps the user to promptly identify and resolve potential problems during testing, improving the accuracy and reliability of the test. Simultaneously, the placement of the second display 8 also makes operation more intuitive and convenient.

[0073] The main purpose of this application is not to improve the pressure sensor. As with the first pressure sensor, the second pressure sensor adopts a commercially available and technologically mature pressure sensor. Therefore, the structure, connection method, setting method and usage of the second pressure sensor will not be described in detail here.

[0074] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A battery testing fixture, characterized in that, include: A battery cell clamping assembly, wherein the battery cell clamping assembly forms a clamping cavity and a side opening communicating with the clamping cavity, the clamping cavity being used to accommodate a battery cell; A connecting copper busbar has a pressure head that contacts and engages with the terminal of the battery cell. The connecting copper busbar is at least partially located outside the clamping cavity, and the pressure head is located within the clamping cavity. A baffle, which is detachably connected to the cell clamping assembly and covers a portion of the side opening; A pressing assembly is disposed on the baffle and extends into the clamping cavity. The pressing assembly is used to elastically abut against the pressing head, so that the pressing head and the electrode post of the battery cell remain in contact.

2. The battery testing fixture according to claim 1, characterized in that, The pressure head is provided with a first contact surface and a second contact surface on opposite sides; The first contact surface is used to make contact with the terminal post of the battery cell, and the second contact surface is used to make contact with the extrusion assembly; The first contact surface has multiple protrusions.

3. The battery testing fixture according to claim 1, characterized in that, The extrusion assembly includes an extruder and a drive component; The extrusion member is movably disposed through the extrusion plate, and one end of the extrusion member extends into the clamping cavity; The driving component and the extruder are driven together, and the driving component can drive the extruder to move in a direction perpendicular to the baffle to extrude or release the pressure head.

4. The battery testing fixture according to claim 3, characterized in that, The extrusion component includes a screw and an elastic element; The screw passes through the baffle; The elastic element is located within the clamping cavity and is connected to the end of the screw; The driving component includes a nut, which is rotatably mounted on the baffle and threadedly connected to the screw. Rotation of the nut can drive the screw to move in a direction perpendicular to the baffle, thereby causing the elastic element to squeeze or release the pressure head.

5. The battery testing fixture according to claim 4, characterized in that, The extrusion assembly includes a first display and a first pressure sensor; The first pressure sensor is disposed on the elastic element or screw; The first display is disposed on the screw and is electrically connected to the first pressure sensor.

6. The battery testing fixture according to claim 1, characterized in that, The connecting copper busbar includes a copper busbar plate, one end of which is provided with the pressure head, and the other end of which is provided with a threaded groove; In the direction perpendicular to the copper busbar, the extension dimension of the pressure head is greater than the extension dimension of the copper busbar.

7. The battery testing fixture according to claim 1, characterized in that, The baffle is provided with a long groove; The extrusion assembly is disposed through the elongated groove; The extrusion assembly can move along the elongated groove.

8. The battery testing fixture according to claim 1, characterized in that, The cell clamping assembly includes a base plate and two side plates; Two side plates are spaced apart, and the bottom plate baffle is located between the two side plates, forming the clamping cavity between the two side plates and the bottom plate; The baffle and the bottom plate are respectively disposed on opposite sides of the side plate; The baffle is fixed to the two side plates by fasteners.

9. The battery testing fixture according to claim 8, characterized in that, Some of the adjustment components are inserted through the base plate and the two side plates; A portion of the adjustment element passes through the two side plates and the clamping cavity between the two side plates; The rotation of the adjusting component can drive the relative movement of the two side plates to adjust the squeezing force on the battery cell.

10. The battery testing fixture according to claim 9, characterized in that, A second pressure sensor and a second display are provided on the side plate described above; The second display is disposed on the side of the side plate opposite to the clamping cavity; The second display is electrically connected to the second pressure sensor.

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