Battery tab clamping device, clamping piece and battery detection device

Abstract

The invention relates to a battery tab clamping device, clamping pieces and a battery detection device.According to the clamping device, the first clamping piece and the second clamping piece are arranged in a stacked mode, first clamping teeth and second clamping teeth are located on the same side of the first clamping piece and the second clamping piece, and the tooth ends of the first clamping teeth and the second clamping teeth extend oppositely; a gap is formed between the tooth surfaces of the first clamping tooth and the second clamping tooth; and the driving assembly is connected with the first clamping piece and the second clamping piece and drives the first clamping piece and the second clamping piece to move relatively, so that the first clamping teeth and the second clamping teeth clamp the tabs of the single batteries in the electric pile. Compared with the prior art, according to the rear clamping tooth tab, the first clamping tooth and the second clamping tooth are close to each other, and the tooth surfaces of the first clamping tooth and the second clamping tooth can be close to each other in a linear translation manner by taking the stacked abutting surfaces as the contact surfaces for relative movement, so that stress can be effectively dispersed in the process of clamping and contacting the tab; and the risk that the tab is damaged due to connection is reduced.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a battery tab clamping device, a clamping member, and a battery orientation detection device. Background Technology

[0002] A flow battery stack typically consists of dozens to hundreds of individual cells connected in series. Abnormal parameters of a single cell, such as overcharging, over-discharging, or short circuit, may trigger a chain reaction, leading to localized overheating, membrane rupture, or even stack failure.

[0003] Monitoring individual cell parameters during application helps with stack consistency management and lifespan extension. A Battery Management System (BMS), combining data such as temperature, flow rate, and cell voltage, supports accurate assessment of State of Charge (SOC) and State of Health (SOH), enabling predictive maintenance. Furthermore, with the technological advancements in the energy storage industry, industry standards and policies also require energy storage systems to be equipped with individual cell parameter monitoring; otherwise, they will fail industry standard testing.

[0004] However, in related technologies, due to the brittle nature of graphite bipolar plates, the parameter acquisition lines are connected to the tabs via metal clips, which can easily cause the tabs to break.

[0005] Therefore, it is necessary to develop a new type of battery tab clamping device, clamping component, and battery detection device to improve some of the problems existing in the related technologies. Summary of the Invention

[0006] The purpose of this invention is to provide a clamping device, clamping member, and battery detection device for battery tabs, which can reduce the risk of damage to the tabs due to connection issues.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] This invention provides a battery tab clamping device, comprising: a first clamping member, a second clamping member, and a driving assembly; the first clamping member includes a first clamping tooth; the second clamping member includes a second clamping tooth; the first clamping member and the second clamping member are stacked, the first clamping tooth and the second clamping tooth are located on the same side of the first clamping member and the second clamping member, and the tooth ends of the first clamping tooth and the second clamping tooth extend towards each other, forming a gap between the tooth surfaces of the first clamping tooth and the second clamping tooth; the driving assembly connects the first clamping member and the second clamping member, and drives the first clamping member and the second clamping member to move relative to each other, so that the first clamping tooth and the second clamping tooth clamp the tab of a single battery cell in the battery stack.

[0009] Furthermore, a plurality of the first clamping teeth and a plurality of the second clamping teeth are respectively arranged on the first clamping member and the second clamping member, such that the first clamping teeth and the second clamping teeth are alternately arranged, and the relative movement direction of the first clamping member and the second clamping member is perpendicular to the tooth surface of the first clamping teeth and the second clamping teeth.

[0010] Furthermore, the first clamping member and the second clamping member have the same structure.

[0011] Furthermore, the first clamping member and the second clamping member have different structures, and the contact surfaces of the first clamping member and the second clamping member are respectively provided with matching guide rail structures.

[0012] Furthermore, the drive assembly includes an elastic element, the two ends of which are connected to a first connection position on the first clamping member and a second connection position on the second clamping member, for providing a restoring force after stretching.

[0013] Furthermore, the first connecting position and the first clamping tooth are respectively located on opposite sides of the first clamping member, and the second connecting position and the second clamping tooth are respectively located on opposite sides of the second clamping member.

[0014] Furthermore, the first connection position and the second connection position are separated by a first distance in the clamping direction of the first clamping tooth and the second clamping tooth, and the first connection position and the second connection position are separated by a second distance in the stacking direction of the first clamping member and the second clamping member.

[0015] Furthermore, the drive assembly also includes a rope disposed at both ends of the elastic member, the elastic member being connected to the first connection position and the second connection position via the rope.

[0016] Furthermore, the drive assembly also includes a pulley, and the rope is disposed on the pulley; the pulley is disposed on the opposite side surface of the first clamping member or the second clamping member, and the angle between the position of the pulley and the line connecting the first connection position and the second connection position is greater than or equal to 60° and less than or equal to 120°.

[0017] The present invention also provides a clamping member, comprising: a body and clamping teeth; the body includes a movable connecting surface and a clamping tooth setting surface; the clamping teeth are disposed on the clamping tooth setting surface, and the tooth tips of the clamping teeth extend out of one side edge of the clamping tooth setting surface; wherein, the movable connecting surface is used for overlapping and abutting, and serves as a contact surface for relative movement, so that the clamping teeth can clamp the tabs of a single battery cell after movement.

[0018] Furthermore, a plurality of the clamping teeth are arranged on the clamping tooth setting surface, and the movable connecting surface is perpendicular to the tooth surface of the clamping teeth.

[0019] The present invention also provides a battery testing device, comprising: a testing component and the above-mentioned clamping device, wherein the testing component is disposed on the tooth surface of the first clamping tooth or the second clamping tooth, and is used to obtain battery information through the tab after clamping.

[0020] Compared with the prior art, the battery tab clamping device, clamping member, and battery detection device provided by the present invention have the following beneficial effects:

[0021] 1. In this invention, the first clamping member and the second clamping member are stacked, and the first clamping teeth and the second clamping teeth on them extend towards each other, forming a gap between the tooth surfaces of the first clamping teeth and the second clamping teeth to accommodate the tab of a single battery cell. By using the abutting surface of the stacked first clamping member and the second clamping member as the contact surface for relative movement, the first clamping teeth and the second clamping teeth are brought closer to each other to clamp the tab. Since the abutting surface of the stacked members is used as the contact surface for relative movement, the tooth surfaces of the first clamping teeth and the second clamping teeth can move closer to each other in a linear translation, which can effectively disperse stress and reduce the risk of damage to the tab due to connection during the clamping process.

[0022] 2. In this invention, the first clamping tooth and the second clamping tooth are arranged alternately on the first clamping member and the second clamping member. When the first clamping member and the second clamping member are driven to move by the driving component, the first clamping tooth and the second clamping tooth are paired together, which can simultaneously clamp the tabs of multiple individual cells in the stack, thereby improving the integrity of the multi-tab clamping.

[0023] 3. The present invention forms a clamping device by combining two first clamping members and a second clamping member with the same structure, which facilitates processing and production, effectively reduces costs, and improves assembly efficiency.

[0024] 4. In this invention, the elastic element connects the first clamping element and the second clamping element. The elastic force generated after the elastic element is stretched and deformed drives the first clamping element and the second clamping element to move relative to each other. During the installation process, the electrode tabs can be easily released or clamped.

[0025] 5. In this invention, the connection positions of the elastic element are respectively located at the first connection position on the first clamping member and the second connection position on the second clamping member. The first connection position and the second connection position have a first distance in the clamping direction, which can provide clamping force to the first clamping tooth and the second clamping tooth when the elastic element rebounds. Furthermore, the first connection position and the second connection position have a second distance in the stacking direction, which can also provide a pressing force to stack the first clamping member and the second clamping member when the elastic element rebounds, thereby reducing the risk of loosening between the first clamping member and the second clamping member. The tight contact between the first clamping member and the second clamping member also helps to improve the clamping accuracy.

[0026] 6. In this invention, ropes are provided on both sides of the elastic element and the ropes are placed on pulleys. The angle between the position of the pulley and the line connecting the first connection position and the second connection position is greater than or equal to 60° and less than or equal to 120°. By changing the direction of the elastic element's rebound force through the pulley, the direction of its rebound force is made closer to the stacking direction and the clamping direction, which effectively improves mechanical efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of multiple individual cells in a flow battery stack.

[0028] Figure 2 This is a schematic diagram of the structure of two clamping members in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the clamping device not being in a clamping state and the detection component in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the clamping device in the clamping state in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the driving component in the first embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the driving component in the second embodiment of the present invention.

[0033] Figure label:

[0034] 10. Clamping component; 101. Clamping tooth; 102. Body; 1021. Moving connection surface; 1022. Clamping tooth setting surface; 1023. Drive mounting surface; 11. First clamping component; 111. First clamping tooth; 112. First connection position; 12. Second clamping component; 121. Second clamping tooth; 122. Second connection position; 2. Drive assembly; 21. Elastic component; 22. Rope; 23. Pulley; 3. Detection assembly; 4. Electrode. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0036] This invention provides a clamping member 10 for forming a clamping device to clamp the tabs of individual cells within a flow battery stack. The structure of the individual cells within the stack is as follows: Figure 1 As shown. Figure 2As shown, the clamping member 10 includes: a body 102 and clamping teeth 101; the body 102 includes a movable connecting surface 1021 and a clamping tooth setting surface 1022; the clamping teeth 101 are disposed on the clamping tooth setting surface 1022, and the tooth ends of the clamping teeth 101 extend out of one side edge of the clamping tooth setting surface 1022; wherein, the movable connecting surface 1021 is used for the clamping members 10 to overlap and abut against each other, and serves as a contact surface for relative movement, so that the clamping teeth 101 can clamp the tabs 4 of the single battery after moving.

[0037] In some embodiments of the present invention, reference is made to Figure 2 A plurality of clamping teeth 101 are arranged on the clamping tooth setting surface 1022, and the movable connecting surface 1021 is perpendicular to the tooth surface of the clamping teeth 101.

[0038] In some specific embodiments, reference is made to Figure 2 The movable connecting surface 1021 is perpendicular to the tooth surfaces of the first clamping tooth 111 and the second clamping tooth 121. The translation direction of the clamping tooth 101 is perpendicular to the tooth surface, which can increase the contact area between the tooth surface of the clamping tooth 101 and the tab 4.

[0039] In some specific embodiments, reference is made to Figure 2 The main body 102 is rectangular. The main bodies 102 of the two clamping members 10 are stacked and abutted together by the movable connecting surface 1021. They are aligned and moved with the clamping tooth setting surface 1022 as the standard. The movable connecting surface 1021 and the clamping tooth setting surface 1022 are perpendicular to each other. The clamping teeth 101 are set so that the tooth surface is perpendicular to both the movable connecting surface 1021 and the clamping tooth setting surface 1022, so that when the clamping members 10 move relative to each other, the translation direction of the clamping teeth 101 is perpendicular to the tooth surface of the clamping teeth 101.

[0040] In some specific embodiments, reference is made to Figure 2 The clamping teeth 101 are disposed on the clamping teeth setting surface 1022, and the tooth tips of the clamping teeth 101 extend toward the moving connecting surface 1021. The tooth tips extend out of the intersection edge of the clamping teeth setting surface 1022 and the moving connecting surface 1021, so that when the two clamping members 10 are connected and engaged, one clamping member 10 abuts against the inner side of the clamping teeth 101 of the other clamping member 10 with the clamping teeth setting surface 1022, so as to realize that the two clamping members 10 move relative to each other with the clamping teeth setting surfaces 1022 aligned.

[0041] This invention provides a battery tab clamping device, such as... Figure 3 , Figure 4 and Figure 5As shown, it includes: a first clamping member 11, a second clamping member 12, and a driving assembly 2; the first clamping member 11 includes a first clamping tooth 111; the second clamping member 12 includes a second clamping tooth 121; the first clamping member 11 and the second clamping member 12 are stacked, the first clamping tooth 111 and the second clamping tooth 121 are located on the same side of the first clamping member 11 and the second clamping member 12, and the tooth ends of the first clamping tooth 111 and the second clamping tooth 121 extend towards each other, so that a gap is formed between the tooth surfaces of the first clamping tooth 111 and the second clamping tooth 121; the driving assembly 2 connects the first clamping member 11 and the second clamping member 12, drives the first clamping member 11 and the second clamping member 12 to move relative to each other, so that the first clamping tooth 111 and the second clamping tooth 121 clamp the tabs 4 of the individual cells in the stack.

[0042] It should be noted that the principle and structure of the first clamping member 11 and the second clamping member 12 of the clamping device in this embodiment correspond one-to-one with the principle and structure of the clamping member 10 mentioned above, and the clamping device can be realized through the clamping member 10 mentioned above, so it will not be described again here.

[0043] In some specific embodiments, reference is made to Figure 3 and Figure 4 A first clamping tooth 111 and a second clamping tooth 121 form a set. After the first clamping member 11 and the second clamping member 12 move relative to each other, the set of first clamping teeth 111 and second clamping teeth 121 approach each other and finally clamp the tabs 4 of the single battery from both sides.

[0044] In some embodiments of the present invention, reference is made to Figure 3 and Figure 4 In some embodiments of the present invention, referring to a plurality of first clamping teeth 111 and a plurality of second clamping teeth 121, reference is made to... Figure 4 and Figure 5 The first connecting position 112 and the first clamping tooth 111 are respectively located on the first clamping member 11 and respectively arranged on the first clamping member 11 and the second clamping member 12, so that the first clamping tooth 111 and the second clamping tooth 121 are alternately arranged, and the relative movement direction of the first clamping member 11 and the second clamping member 12 is perpendicular to the tooth surface of the first clamping tooth 111 and the second clamping tooth 121.

[0045] In some specific embodiments, reference is made to Figure 3 and Figure 4 One end of the first clamping tooth 111 and the second clamping tooth 121 are aligned with the top or bottom end of the upper body 102 of the first clamping member 11 and the second clamping member 12, and the other ends extend towards each other. The height of the first clamping tooth 111 and the second clamping tooth 121 is the same.

[0046] In some specific embodiments, reference is made to Figure 3 and Figure 4After the first clamping member 11 and the second clamping member 12 abut and engage, a number of first clamping teeth 111 and a number of second clamping teeth 121 are arranged alternately in the order of first clamping teeth 111, second clamping teeth 121, first clamping teeth 111, second clamping teeth 121, first clamping teeth 111..., and adjacent first clamping teeth 111 and second clamping teeth 121 form a group. After the first clamping member 11 and the second clamping member 12 move relative to each other, they eventually clamp a number of individual electrode tabs 4 from both sides simultaneously.

[0047] In some embodiments of the present invention, reference is made to Figure 2 , Figure 3 and Figure 4 The first clamping member 11 and the second clamping member 12 have the same structure.

[0048] In some specific embodiments, reference is made to Figure 2 and Figure 3 The first clamping teeth 111 are arranged on the clamping tooth setting surface 1022 of the first clamping member 11. The first first clamping tooth 111 is flush with one end edge of the clamping tooth setting surface 1022 on the first clamping member 11. By adjusting the gap between the first clamping teeth 111, a certain distance is left between the last first clamping tooth 111 and the other end edge of the clamping tooth setting surface 1022 on the first clamping member 11. In some specific embodiments, the second clamping teeth 121 are arranged on the clamping tooth setting surface 1022 of the second clamping member 12. The first second clamping tooth 121 is flush with one end edge of the clamping tooth setting surface 1022. By adjusting the gap between the second clamping teeth 121, a certain distance is left between the last second clamping tooth 121 and the other end edge of the clamping tooth setting surface 1022. Distance; The tips of the first clamping teeth 111 and the second clamping teeth 121 extend in the same direction with the body 102 as a reference. When the first clamping member 11 and the second clamping member 12 with the same structure are installed, after one of them is rotated, the extension direction of the tip of the clamping tooth 101 changes from the same direction to the opposite direction. After the moving connecting surfaces 1021 abut against each other, the first clamping teeth 111 and the second clamping teeth 121 are inserted together, so that the first clamping tooth 111 falls between the adjacent second clamping teeth 121, and the second clamping tooth 121 falls between the adjacent first clamping teeth 111. In the arrangement direction, the first first clamping tooth 111 is flush with one end edge of the clamping tooth setting surface 1022 on the second clamping member 12, and in the arrangement direction, the first second clamping tooth 121 is flush with one end edge of the clamping tooth setting surface 1022 on the first clamping member 11.

[0049] In some specific embodiments, reference is made to Figure 2 , Figure 3 and Figure 4 The opposing tooth surfaces on the first clamping tooth 111 and the second clamping tooth 121 have an arc surface on the edge of the side where the electrode 4 is inserted, so as to improve the safety of the electrode 4 during installation and connection.

[0050] In other embodiments, the structures of the first clamping member 11 and the second clamping member 12 may be different, and matching guide rail structures are respectively provided on the contact surfaces of the first clamping member 11 and the second clamping member 12.

[0051] Specifically, guide grooves and slider structures, such as dovetail groove guide rail slider structures, can be respectively provided on the moving connection surfaces 1021 of the first clamping member 11 and the second clamping member 12, which improves the accuracy of movement in the clamping direction and the connection reliability in the stacking direction.

[0052] It should be noted that the clamping direction refers to the direction of movement of the first clamping tooth 111 or the second clamping tooth 121 and its opposite direction. In this embodiment, it also refers to the arrangement direction of the first clamping tooth 111 or the second clamping tooth 121.

[0053] For example, refer to Figure 3 and Figure 4 The stacking direction is direction A and its opposite direction as shown in the figure, and the clamping direction is direction B and its opposite direction as shown in the figure.

[0054] In some embodiments of the present invention, reference is made to Figure 5 The drive assembly 2 includes an elastic element 21, the two ends of which are connected to a first connection position 112 on the first clamping member 11 and a second connection position 122 on the second clamping member 12, for providing a rebound force after stretching.

[0055] In some specific embodiments, the elastic element 21 can be a component that mainly utilizes the compressibility of materials to provide rebound force, such as a component made of elastic rubber, elastic composite material, or an air spring for compressed air.

[0056] In other embodiments, the elastic element 21 can be a component that primarily utilizes structural properties to provide restoring force, such as a helical spring.

[0057] In some embodiments of the present invention, reference is made to Figure 4 and Figure 5 The first connecting position 112 and the first clamping tooth 111 are respectively located on opposite sides of the first clamping member 11, and the second connecting position 122 and the second clamping tooth 121 are respectively located on opposite sides of the second clamping member 12.

[0058] In some specific embodiments, reference is made to Figure 4 and Figure 5The other side surface of the first clamping member 11 and the second clamping member 12 opposite to the clamping tooth setting surface 1022 is the driving mounting surface 1023. The elastic member 21 of the driving assembly 2 is connected to the first connection position 112 on the first clamping member 11 and the second connection position 122 on the second clamping member 12. Due to the rebound force provided by the elastic member 21, the first clamping member 11 and the second clamping member 12 move closer to each other. Due to the limitation of the mutual approach movement of the first clamping member 11 and the second clamping member 12 by the abutment of the moving connection surface 1021 and the alignment of the clamping tooth setting surface 1022, the first clamping member 11 and the second clamping member 12 make a translational movement closer to each other, thereby realizing the mutual translational clamping of the first clamping tooth 111 and the second clamping tooth 121 to clamp the electrode tab 4.

[0059] In some embodiments of the present invention, reference is made to Figure 5 The first connecting position 112 and the second connecting position 122 are separated by a first distance in the clamping direction of the first clamping tooth 111 and the second clamping tooth 121, and the first connecting position 112 and the second connecting position 122 are separated by a second distance in the stacking direction of the first clamping member 11 and the second clamping member 12.

[0060] In some specific embodiments, reference is made to Figure 5 After the first clamping member 11 and the second clamping member 12 are assembled, they form a whole. From the perspective of this whole, the assembled whole has two ends in its clamping direction. The first connecting position 112 and the second connecting position 122 are located near the positions of the two ends in the clamping direction, so that a first distance is formed between the first connecting position 112 and the second connecting position 122, thereby enabling the first clamping member 11 and the second clamping member 12 to move towards each other when the elastic member 21 rebounds.

[0061] In some specific embodiments, reference is made to Figure 5 After the first clamping member 11 and the second clamping member 12 are assembled, they form a whole. From the perspective of this whole, the assembled whole has two ends in its stacking direction. Since the first clamping member 11 and the second clamping member 12 are stacked, the first connecting position 112 and the second connecting position 122 are respectively located on the first clamping member 11 and the second clamping member 12. The first connecting position 112 and the second connecting position 122 are naturally located near the position area of ​​the two ends in the stacking direction, so that a second distance is formed between the first connecting position 112 and the second connecting position 122, thereby enabling the first clamping member 11 and the second clamping member 12 to abut against each other tightly when the elastic member 21 rebounds.

[0062] For example, refer to Figure 5After the first clamping member 11 and the second clamping member 12 are assembled, they form a whole. From the perspective of this whole, the first connection position 112 is located in the upper left of the figure, and the second connection position 122 is located in the lower right of the figure. When the elastic member 21 connects the first connection position 112 and the second connection position 122, the direction of the rebound force is inclined to the clamping direction and the stacking direction.

[0063] In some embodiments of the present invention, reference is made to Figure 5 The drive assembly 2 also includes a rope 22, which is disposed at both ends of the elastic member 21. The elastic member 21 is connected to the first connection position 112 and the second connection position 122 via the rope 22.

[0064] In some embodiments of the present invention, reference is made to Figure 6 The drive assembly 2 also includes a pulley 23, and a rope 22 is disposed on the pulley 23. The pulley 23 is disposed on the first clamping member 11 or the second clamping member 12 and faces the opposite side of the first clamping tooth 111 or the second clamping tooth 121. The angle between the position of the pulley 23 and the line formed between the first connection position 112 and the second connection position 122 is greater than or equal to 60° and less than or equal to 120°.

[0065] In some specific embodiments, reference is made to Figure 6 The elastic element 21 is connected to the first connection position 112 and the second connection position 122 by ropes 22 at both ends, and the pulley 23 is set on the rope 22 at one end.

[0066] In some specific embodiments, reference is made to Figure 6 The pulley 23 can be set on the drive mounting surface 1023 of the first clamping member 11 or on the drive mounting surface 1023 of the second clamping member 12.

[0067] In some specific embodiments, the angle between the position of pulley 23 and the line connecting the first connecting position 112 and the second connecting position 122 can be 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115° or 120°.

[0068] In some specific embodiments, reference is made to Figure 5 and Figure 6 When the line connecting the pulley 23 position and the first connecting position 112 is perpendicular to the line connecting the pulley 23 position and the second connecting position 122, the direction of the rebound force of the elastic element 21 is perpendicular to the clamping direction and the stacking direction, respectively, making the mechanical efficiency of the clamping teeth 101 clamping and stacking abutment higher.

[0069] In some specific embodiments, reference is made to Figure 6The two sets of drive components 2 are arranged in a centrally symmetrical manner, with the center being the midpoint in the stacking and clamping directions when the first clamping member 11 and the second clamping member 12 are combined to form a whole.

[0070] In some specific embodiments, reference is made to Figure 6 The two sets of drive components 2 from the first connection position 112 to the second connection position 122 are configured as follows: In the first set, one end of the elastic element 21 is connected to the first connection position 112 along the stacking direction by a rope 22, and the other end of the rope 22 is connected to the second connection position 122 along the clamping direction after being turned by a pulley 23; In the second set, one end of the elastic element 21 is connected to the first connection position 112 along the clamping direction after being turned by a pulley 23, and the other end of the rope 22 is connected to the second connection position 122 along the stacking direction.

[0071] For example, refer to Figure 6 The first connection position 112 and the second connection position 122 are located at the upper left and lower right of the figure, respectively. The two pulleys 23 are respectively disposed on the drive mounting surfaces 1023 of the first clamping member 11 and the second clamping member 12, and the two pulleys 23 are located at the lower left and upper right of the figure, respectively.

[0072] It should be noted that the maximum distance between the first clamping tooth 111 and the second clamping tooth 121 is less than the spacing of the individual battery tabs 4 in the stack, so that the first clamping tooth 111 and the second clamping tooth 121 can enter the gap between the tabs 4 and clamp them.

[0073] This invention also provides a battery testing device, including a testing component 3 and the aforementioned clamping device, such as... Figure 3 As shown, the detection component 3 includes a metal measuring point and a signal acquisition line. The metal measuring point is set on the tooth surface of the first clamping tooth 111 or the second clamping tooth 121. The signal acquisition line is connected to the metal measuring point and extends from the tooth surface to the top surface of the first clamping member 11 or the bottom surface of the second clamping member 12.

[0074] In some specific embodiments, the detection component 3 can be used to perform voltage detection, current detection, or fault detection on individual cells within the stack. The specific detection method can be implemented using detection methods known to those skilled in the art, and therefore will not be described in detail here.

[0075] It should be noted that the arrangement of multiple metal measuring points and signal acquisition lines can be achieved through arrangements known to those skilled in the art, and therefore will not be elaborated here.

[0076] In other embodiments, the drive assembly 2 may be a clamping mechanism with a stroke greater than the length between the two ends of the first clamping member 11 and the second clamping member 12. The clamping mechanism includes two clamping surfaces facing each other. The two clamping surfaces are driven to approach each other by an elastic member, so that the two clamping surfaces simultaneously abut against the end surfaces of the first clamping member 11 and the second clamping member 12, thereby aligning the end surfaces of the first clamping member 11 and the second clamping member 12, and thus clamping the electrode tabs with the first clamping tooth 111 and the second clamping tooth 121.

[0077] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0079] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0080] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0081] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0082] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A clamping device for battery tabs, characterized in that, include: The first clamping member (11) includes a first clamping tooth (111); The second clamping member (12) includes a second clamping tooth (121); The first clamping member (11) and the second clamping member (12) are stacked, the first clamping tooth (111) and the second clamping tooth (121) are located on the same side of the first clamping member (11) and the second clamping member (12), and the tooth ends of the first clamping tooth (111) and the second clamping tooth (121) extend towards each other, so that a gap is formed between the tooth surfaces of the first clamping tooth (111) and the second clamping tooth (121); The drive assembly (2) connects the first clamping member (11) and the second clamping member (12) and drives the first clamping member (11) and the second clamping member (12) to move relative to each other, so that the first clamping tooth (111) and the second clamping tooth (121) clamp the tabs (4) of the individual cells in the stack.

2. The battery tab clamping device according to claim 1, characterized in that, A plurality of first clamping teeth (111) and a plurality of second clamping teeth (121) are respectively arranged on the first clamping member (11) and the second clamping member (12), such that the first clamping teeth (111) and the second clamping teeth (121) are alternately arranged, and the relative movement direction of the first clamping member (11) and the second clamping member (12) is perpendicular to the tooth surface of the first clamping teeth (111) and the second clamping teeth (121).

3. The battery tab clamping device according to claim 1, characterized in that, The first clamping member (11) and the second clamping member (12) have the same structure.

4. The battery tab clamping device according to claim 1, characterized in that, The first clamping member (11) and the second clamping member (12) have different structures. The first clamping member (11) and the second clamping member (12) are respectively provided with matching guide rail structures on their contact surfaces.

5. The battery tab clamping device according to claim 1, characterized in that, The drive assembly (2) includes an elastic element (21) with its two ends connected to a first connection position (112) on the first clamping member (11) and a second connection position (122) on the second clamping member (12) for providing a rebound force after stretching.

6. The battery tab clamping device according to claim 5, characterized in that, The first connecting position (112) and the first clamping tooth (111) are respectively located on opposite sides of the first clamping member (11), and the second connecting position (122) and the second clamping tooth (121) are respectively located on opposite sides of the second clamping member (12).

7. The battery tab clamping device according to claim 6, characterized in that, The first connection position (112) and the second connection position (122) are at a first distance in the clamping direction of the first clamping tooth (111) and the second clamping tooth (121), and the first connection position (112) and the second connection position (122) are at a second distance in the stacking direction of the first clamping member (11) and the second clamping member (12).

8. The battery tab clamping device according to claim 5, characterized in that, The drive assembly (2) further includes a rope (22) disposed at both ends of the elastic member (21), and the elastic member (21) is connected to the first connection position (112) and the second connection position (122) via the rope (22).

9. The battery tab clamping device according to claim 8, characterized in that, The drive assembly further includes a pulley (23), and the rope (22) is disposed on the pulley (23); the pulley (23) is disposed on the first clamping member (11) or the second clamping member (12) and faces the opposite side of the first clamping tooth (111) or the second clamping tooth (121); the position of the pulley (23) is at an angle greater than or equal to 60° and less than or equal to 120° with the line formed between the first connection position (112) and the second connection position (122).

10. A clamping member (10), characterized in that, include: The main body (102) includes a movable connecting surface (1021) and a clamping tooth (101) setting surface; Clamping teeth (101) are disposed on the clamping teeth (101) setting surface, and the tooth tip of the clamping teeth (101) extends out of one side edge of the clamping teeth (101) setting surface; The movable connecting surface (1021) is used for stacking and abutting, and serves as a relatively movable contact surface, so that the clamping teeth (101) can move and clamp the tabs (4) of the single battery cell.

11. The clamping member (10) according to claim 10, characterized in that, A plurality of the clamping teeth (101) are arranged on the clamping tooth (101) setting surface, and the movable connecting surface (1021) is perpendicular to the tooth surface of the clamping teeth (101).

12. A battery testing device, characterized in that, Includes a detection component (3) and a clamping device as described in any one of claims 1-9, wherein the detection component (3) is disposed on the tooth surface of the first clamping tooth (111) or the second clamping tooth (121) for obtaining battery information through the tab (4) after clamping.

Images