Clamping device and battery production system

Abstract

The utility model discloses a clamping device and a battery production system. The clamping device is used for clamping a single battery, the clamping device comprises a clamping unit, the clamping unit comprises a protection part and two clamping components, the two clamping components are oppositely arranged in a spaced mode and used for clamping the single battery, and each clamping component is connected with the protection part. The two clamping components and the protection part jointly define a containing space for containing the battery monomer, the protection part comprises a separation part, the side, facing the containing space, of the separation part is provided with an abutting face, the abutting face is used for abutting against a shell of the battery monomer, and at least part of the separation part is arranged between a liquid injection opening of the battery monomer and a pole of the battery monomer; the abutting direction of the partition portion intersects the spacing direction of the two clamping members. The separation part of the protection piece can block the probability that the electrode liquid is splashed to the pole in the clamping process, so that the condition that the pole is corroded by the electrolyte is improved.

Description

Technical Field

[0001] The present application relates to a battery manufacturing tool, and more specifically to a clamping device and a battery production system. Background Art

[0002] Currently, when the clamping device is clamping a battery cell, the electrolyte in the battery cell is easily splashed out from the injection port due to pressure, and the electrolyte will fall onto the pole of the battery cell, causing the pole to be corroded. Utility Model Content

[0003] In view of the above problems, the present application provides a clamping device and a battery production system, which can improve the situation where the electrode is corroded by the electrolyte.

[0004] In a first aspect, the present application provides a clamping device for clamping a battery cell, the clamping device comprising:

[0005] The clamping unit includes a protective part and two clamping members, the two clamping members are arranged opposite to each other and at intervals, the two clamping members are used to clamp the battery cell, each clamping member is connected to the protective part, the two clamping members and the protective part jointly define a accommodating space for accommodating the battery cell, the protective part includes a partition, the partition has an abutting surface on the side facing the accommodating space, the abutting surface is used to abut with the outer shell of the battery cell, and at least part of the partition is arranged between the liquid filling port of the battery cell and the pole of the battery cell, and the abutting direction of the partition intersects with the spacing direction of the two clamping members.

[0006] Before the battery cell is clamped, the clamping unit can be driven to move downward so that the abutting surface abuts against the outer shell of the battery cell, thereby allowing the partition to separate the liquid filling port and the pole, and then the two clamping members are driven to move toward each other to clamp the battery cell. The partition can prevent the probability of the electrode liquid splashing onto the pole during the clamping process, thereby improving the situation where the pole is corroded by the electrolyte.

[0007] In some embodiments, the partition includes a first part, a second part and a third part, the first part is respectively connected to the second part and the third part, the first part, the second part and the third part are combined to form a receiving groove, and the first part, the second part and the third part are respectively used to abut against the outer shell, the receiving groove is used to accommodate the pole, and the first part is used to be arranged between the liquid filling port and the pole.

[0008] The first part, the second part and the third part together form a receiving groove. Compared with the structure using only the first part, the shielding area of ​​the pole can be increased to reduce the probability of electrolyte splashing onto the pole.

[0009] In some embodiments, the separator is an annular structure, and the separator is used to surround the pole.

[0010] In this way, the partition can surround the pole, so that the entire pole is shielded, thereby reducing the probability of electrolyte splashing onto the pole.

[0011] In some embodiments, the clamping member is provided with a first long slot hole, and the clamping unit further includes a first connecting member, the clamping member is detachably connected to the protective member through the first connecting member, part of the first connecting member is located in the first long slot hole, and the position of the first connecting member in the first long slot hole is adjustable along the length direction of the first long slot hole, and the length direction of the first long slot hole is the same as the spacing direction of the two clamping members.

[0012] Battery cells of different specifications have different dimensions along the spacing direction of the two clamping members. In order to enable the protective member to protect the pole, the protective member is set to be adjustable relative to the clamping member along the spacing direction of the two clamping members, which can meet the protection requirements of the poles of different battery cells and improve the applicability of the clamping device.

[0013] In some embodiments, the clamping member comprises:

[0014] Support;

[0015] The clamping body is connected to the support in an adjustably manner, and the position of the clamping body relative to the protective element along the abutting direction of the partition is adjustable.

[0016] For battery cells of different heights, the position of the battery cell clamped by the clamping device is different due to the limitation of the partition. The position of the clamping body relative to the protective member along the abutting direction of the partition is adjustable, so that the clamping device can clamp battery cells of different heights, thereby improving the applicability of the clamping device.

[0017] In some embodiments, the clamping member also includes an adapter, the protective member is connected to the adapter, the support or the adapter is provided with a second long slot hole, the clamping unit also includes a second connecting member, the adapter is detachably connected to the clamping body through the second connecting member, part of the second connecting member is located in the second long slot hole, the position of the second connecting member in the second long slot hole along the abutment direction of the partition part is adjustable, and the length direction of the second long slot hole is the same as the abutment direction of the partition part.

[0018] In this way, the clamping body and the support can be adjusted to clamp battery cells of different heights.

[0019] In some embodiments, the clamping members have clamping portions, the clamping portions of the two clamping members are used to clamp the battery cells, and the surfaces of the clamping portions facing the accommodation space are provided with anti-slip structures.

[0020] The provision of the anti-slip structure can increase the friction between the clamping portion and the battery cell, thereby improving the reliability of the clamping.

[0021] In some embodiments, the anti-slip structure includes a plurality of protrusions, and the plurality of protrusions are arranged at intervals.

[0022] Thus, the surface roughness of the clamping portion can be increased by the protrusions to increase the friction force, thereby improving the reliability of the clamping.

[0023] In some embodiments, the clamping unit further includes a distance sensor, one of the two clamping members is provided with the distance sensor, and the distance sensor is used to detect the distance between the housing and the abutting surface.

[0024] Whether the abutting surface abuts the shell can be determined based on the detection result of the distance sensor. When abutting, the battery cell is clamped by the clamping member to reduce the probability of electrolyte splashing onto the pole due to the failure of the abutting surface to abut the shell during the clamping process.

[0025] In a second aspect, the present application provides a battery production system, comprising the clamping device of the first aspect, the clamping device being used to clamp a battery cell.

[0026] Since the battery production system includes all the technical features of the above-mentioned clamping device, the effects are the same as those described above and will not be repeated here.

[0027] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0029] Figure 1 This is an axonometric diagram of a clamping device according to an embodiment of the present application;

[0030] Figure 2 This is an axonometric diagram of a clamping device clamping a battery cell according to an embodiment of the present application;

[0031] Figure 3A An axonometric view of a clamping member in a clamping device according to an embodiment of the present application from a first perspective;

[0032] Figure 3B This is an axonometric view of a clamping member in a clamping device according to another embodiment of the present application from a first perspective;

[0033] Figure 3C This is an axonometric view of a clamping member in a clamping device according to another embodiment of the present application from a first perspective;

[0034] Figure 4 An axonometric view of a clamping member in a clamping device according to an embodiment of the present application from a second perspective;

[0035] Figure 5 This is an axonometric view of an adapter in a clamping device according to an embodiment of the present application.

[0036] The accompanying drawings in the specific implementation manner are as follows:

[0037] 100. Clamping device; 110. Clamping unit;

[0038] 10. Protective member; 11. Partition; 12. Accommodating groove; 111. First portion; 112. Second portion; 113. Third portion; 20. Clamping member; 21. Support; 211. Second slotted hole; 22. Clamping body; 221. Anti-slip structure; 23. Adapter; 231. First slotted hole; 30. First connecting member; 40. Second connecting member; 50. Distance sensor; 60. Driving member;

[0039] 200, battery cell;

[0040] X, abutment direction; Y, spacing direction. DETAILED DESCRIPTION

[0041] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0043] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0044] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0045] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0046] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0047] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0048] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0049] Currently, when the clamping device is clamping a battery cell, the electrolyte in the battery cell is easily splashed out from the injection port due to pressure, and the electrolyte will fall onto the pole of the battery cell, causing the pole to be corroded.

[0050] In view of this, the present application provides a clamping device, which abuts the outer shell of the battery cell through the abutment surface, so that the partition separates the liquid filling port and the pole, and then drives the two clamping components to move toward each other to clamp the battery cell. The partition can prevent the probability of the electrode liquid splashing onto the pole during the clamping process, so as to improve the situation where the pole is corroded by the electrolyte.

[0051] The clamping device is used to clamp but is not limited to lithium battery cells, lead-acid battery cells, etc.

[0052] For the convenience of explanation, please refer to the following examples. Figure 1-Figure 5 , a clamping device 100 according to some embodiments of the present application is used as an example for description.

[0053] The clamping device 100 is used to clamp a battery cell 200. The clamping device 100 includes a clamping unit 110, which includes a protective member 10 and two clamping members 20. The two clamping members 20 are arranged opposite each other and spaced apart. The two clamping members 20 are used to clamp the battery cell 200. Each clamping member 20 is connected to the protective member 10. The two clamping members 20 and the protective member 10 together define a storage space for accommodating the battery cell 200. The protective member 10 includes a partition 11. The partition 11 has an abutment surface on the side facing the storage space. The abutment surface is used to abut the outer shell of the battery cell 200. At least a portion of the partition 11 is disposed between the liquid injection port of the battery cell 200 and the terminal of the battery cell 200. The abutment direction X of the partition 11 intersects with the spacing direction Y of the two clamping members 20.

[0054] The clamping member 20 is formed by one piece or a plurality of pieces connected to each other as a whole. For example, the clamping member 20 may be formed by two or more pieces connected by welding, screw connection, riveting, or the like.

[0055] The number of the clamping units 110 can be one or more. For example, the number of the clamping units 110 is multiple and they are arranged in a row.

[0056] The cross section of the partition 11 (the cross section perpendicular to the abutting direction X of the partition 11 ) can be a long strip structure, or can be a U-shaped or ring-shaped structure.

[0057] As an example, see Figure 3C The separator 11 is an elongated strip, with a length greater than or equal to the width of the battery cell 200, to prevent the electrolyte from flowing toward the electrode. In other examples, the separator 11 may be, but is not limited to, a square structure, or may be made into other irregular shapes, depending on actual needs.

[0058] The contact direction X of the partition 11 refers to a direction in which the shield 10 moves toward the battery cell 200 and the contact surface contacts the outer casing.

[0059] The two clamping members 20 can clamp the battery cells 200 manually or by actuation of a drive unit 60. The drive unit 60 can be an electric or pneumatic drive unit, for example, an electric clamping finger or a pneumatic clamp, or a linear motion unit such as a screw drive unit with two screw nuts (the two screw nuts and the screw threads have opposite rotation directions).

[0060] As an example, the two gripping members 20 can be mounted one-to-one at the two movable ends of a pneumatic gripping finger or an electric gripping finger, and the pneumatic gripping fingers or the electric gripping fingers can be used to achieve the two gripping members 20 moving toward each other or away from each other. The pneumatic gripping fingers and the electric gripping fingers can be mounted at the ends of a manipulator's mechanical arm or on a workbench with a lifting mechanism to facilitate the transfer operation of the gripping device 100 after gripping the battery cell 200.

[0061] As an example, along the spacing direction Y of the two clamping members 20, the two clamping members 20 can be slidably installed on the mounting seat, and the two clamping members 20 are threadedly connected with a screw, and the rotation direction of the screw and the threaded cooperation of the two clamping members 20 are opposite, so that the two clamping members 20 can move toward or away from each other when the screw is screwed, thereby achieving clamping and loosening of the battery cell 200, thereby achieving clamping of the battery cell 200 through manual operation.

[0062] Before the battery cell 200 is clamped, the clamping unit 110 can be driven to move downward so that the abutting surface abuts against the outer shell of the battery cell 200, so that the partition 11 separates the liquid filling port and the pole, and then the two clamping members 20 are driven to move toward each other to clamp the battery cell 200. The partition 11 can prevent the probability of the electrode liquid splashing onto the pole during the clamping process, so as to improve the situation where the pole is corroded by the electrolyte.

[0063] In some embodiments, please refer to Figure 3A The separator 11 includes a first part 111, a second part 112 and a third part 113. The first part 111 is connected to the second part 112 and the third part 113 respectively. The first part 111, the second part 112 and the third part 113 are combined to form a receiving groove 12, and the first part 111, the second part 112 and the third part 113 are respectively used to abut against the outer shell. The receiving groove 12 is used to accommodate the pole, and the first part 111 is used to be arranged between the liquid injection port and the pole.

[0064] The first part 111 , the second part 112 and the third part 113 may be connected by welding, injection molding, bonding or the like.

[0065] The partition 11 can be made of an elastic material, specifically but not limited to rubber, silicone or polyurethane, etc., or can be made of a plastic part.

[0066] As an example, the protective member 10 also includes a main body, a partition 11 connected to the main body, and the partition 11 is located on the side of the main body facing the accommodating space. The partition 11 and the main body can form an integrated structure by bonding, injection molding or bonding.

[0067] The first portion 111 , the second portion 112 and the third portion 113 together form the receiving groove 12 . Compared with a structure using only the first portion 111 , the shielding area of ​​the pole can be increased to reduce the probability of electrolyte splashing onto the pole.

[0068] In some embodiments, please refer to Figure 3B The separator 11 is a ring structure, and is used to surround the pole.

[0069] The annular structure may be, but is not limited to, a circular ring or a special-shaped ring structure, and the special-shaped ring structure may be, but is not limited to, a triangular ring, an elliptical ring, or a polygonal ring.

[0070] In this way, the separator 11 can surround the pole, so that the entire pole is shielded, thereby reducing the probability of electrolyte splashing onto the pole.

[0071] In some embodiments, the receiving groove 12 is also used to cover a QR code on the surface of the housing.

[0072] In this way, the probability of the electrolyte contaminating and corroding the QR code on the surface of the shell can be reduced, thereby improving the qualified rate of the product.

[0073] In some embodiments, please refer to Figure 4 and Figure 5 The clamping member 20 is provided with a first long slot hole 231, and the clamping unit 110 also includes a first connecting member 30. The clamping member 20 is detachably connected to the protective member 10 through the first connecting member 30. Part of the first connecting member 30 is located in the first long slot hole 231, and along the length direction of the first long slot hole 231, the position of the first connecting member 30 in the first long slot hole 231 is adjustable. The length direction of the first long slot hole 231 is the same as the spacing direction Y between the two clamping members 20.

[0074] In each embodiment of the present application, the long slot hole refers to a hole whose length is greater than its width and is in the shape of an elongated strip.

[0075] The first connecting member 30 includes but is not limited to any one of a screw, a bolt and a nut combination, and a stud and a nut combination.

[0076] As an example, the protective member 10 has a first connection hole on one side along the spacing direction Y between the two clamping members 20. The first connection member 30 passes through the first elongated slot 231 and connects to the first connection hole. The first connection member 30 is a screw, and the first connection hole is a threaded hole. The first connection hole can be replaced with a plain hole, with a nut threadedly connected to the end of the screw. Alternatively, the screw can be replaced with a stud, with one end of the stud threadedly connected to the threaded hole and the other end of the stud threadedly connected to the nut.

[0077] Battery cells 200 of different specifications have different dimensions along the spacing direction Y between the two clamping members 20. In order to enable the protective member 10 to protect the pole, the protective member 10 is set to be adjustable relative to the clamping member 20 along the spacing direction Y between the two clamping members 20, which can meet the protection requirements of the poles of different battery cells 200, thereby improving the applicability of the clamping device 100.

[0078] In some embodiments, please refer to Figure 1 and Figure 4 The clamping member 20 includes a support 21 and a clamping body 22. The clamping body 22 is connected to the support 21 in an adjustable manner, and the position of the clamping body 22 relative to the protective member 10 along the abutting direction X of the partition 11 is adjustable.

[0079] As an example, the clamping body 22 has multiple sets of mounting holes spaced apart along the abutment direction X of the partition 11, and the support 21 can be threadedly connected to any set of mounting holes using screws. Alternatively, the support 21 can be connected to the mounting holes using a combination of bolts and nuts, or a combination of studs and nuts. Alternatively, the support 21 has multiple sets of mounting holes spaced apart along the abutment direction X of the partition 11, and the clamping body 22 can be threadedly connected to any set of mounting holes using screws.

[0080] As an example, the clamping body 22 is slidably connected to the support 21 along the abutment direction X of the partition 11. The clamping body 22 is provided with a threaded hole, and a set screw is threadedly connected to the threaded hole. By screwing the set thread, the end of the set thread can be abutted and separated from the support 21 to adjust the position of the clamping body 22 relative to the support 21 along the abutment direction X of the partition 11.

[0081] For battery cells 200 of different heights, the position of the clamping device 100 clamping the battery cells 200 is also different due to the limitation of the partition 11. The position of the clamping body 22 relative to the protective member 10 along the abutment direction X of the partition 11 is adjustable, allowing the clamping device 100 to clamp battery cells 200 of different heights, thereby increasing the applicability of the clamping device 100.

[0082] In some embodiments, please refer to Figure 1 and Figure 4The clamping member 20 also includes an adapter 23, the protective member 10 is connected to the adapter 23, the support 21 or the adapter 23 is provided with a second long slot hole 211, the clamping unit 110 also includes a second connecting member 40, the adapter 23 is detachably connected to the clamping body 22 through the second connecting member 40, part of the second connecting member 40 is located in the second long slot hole 211, the position of the second connecting member 40 in the second long slot hole 211 along the abutment direction X of the partition 11 is adjustable, and the length direction of the second long slot hole 211 is the same as the abutment direction X of the partition 11.

[0083] The second connecting member 40 includes but is not limited to any one of a screw, a bolt and a nut combination, and a stud and a nut combination.

[0084] As an example, the support 21 has a second connection hole, and the end of a screw passes through the second slotted hole 211 and is threadedly connected to the second connection hole. Alternatively, the end of a bolt passes through the second slotted hole 211 and the second connection hole and is threadedly connected to a nut. Alternatively, one end of a stud is threadedly connected to the second connection hole, and the other end of the stud is threadedly connected to a nut. In other examples, the second connection hole can also be provided on the adapter 23, which can be an L-shaped plate. The specific connection method is similar to that listed above and is not further described here.

[0085] Thus, the clamping body 22 and the support 21 can be adjusted to clamp battery cells 200 of different heights.

[0086] In some embodiments, please refer to Figure 3A The clamping member 20 has a clamping portion, and the clamping portions of the two clamping members 20 are used to clamp the battery cell 200. The surface of the clamping portion facing the accommodation space is provided with an anti-slip structure 221.

[0087] The anti-slip structure 221 may be made of a material with a relatively large friction coefficient, for example, rubber, polyurethane or synthetic fiber, etc., to form an anti-slip layer, and the anti-slip layer serves as the anti-slip structure 221 .

[0088] The provision of the anti-slip structure 221 can increase the friction between the clamping portion and the battery cell 200 , thereby improving the reliability of the clamping.

[0089] In some embodiments, please refer to Figure 3A The anti-slip structure 221 includes a plurality of protrusions, and the plurality of protrusions are arranged at intervals.

[0090] For example, the protrusion may be, but is not limited to, a cylindrical protrusion, a square protrusion, a polygonal column protrusion, or an elliptical column protrusion.

[0091] The plurality of protrusions may be arranged in a rectangular array or in a certain geometric shape to form a structure with a certain texture.

[0092] Thus, the surface roughness of the clamping portion can be increased by the protrusions to increase the friction force, thereby improving the reliability of the clamping.

[0093] In some embodiments, please refer to Figure 1 The clamping unit 110 further includes a distance sensor 50 . One of the two clamping members 20 is provided with the distance sensor 50 . The distance sensor 50 is used to detect the distance between the housing and the abutting surface.

[0094] The distance sensor 50 can be communicatively connected to an external controller. The controller can be communicatively connected to an alarm device. When the distance sensor 50 detects a distance value of zero, it issues a message indicating that a clamping operation can be performed. If the two clamping members 20 are driven by the drive component 60, the controller can be communicatively connected to the drive component 60 to control the drive component 60 to drive the two clamping members 20 to perform the clamping operation. Conversely, when the distance value is greater than zero, an alarm prompt is issued.

[0095] Based on the detection result of the distance sensor 50, it can be determined whether the abutting surface is in contact with the shell. When in contact, the battery cell 200 is clamped by the clamping member 20 to reduce the probability of electrolyte splashing onto the pole due to the failure of the abutting surface to abut the shell during the clamping process.

[0096] For the convenience of description, the following embodiments are described by taking a battery production system according to some embodiments of the present application as an example.

[0097] The battery production system includes the clamping device 100 of the above embodiment, and the clamping device 100 is used to clamp the battery cell 200 .

[0098] After the clamping device 100 clamps the battery cell 200, the liquid injection port can be sealed by a sealing nail for sealing welding, or the battery cell 200 can be formed. Specifically, the battery cell 200 can be operated accordingly according to the actual production process.

[0099] Since the battery production system includes all the technical features of the clamping device 100 described above, the effects are the same as those described above and will not be described in detail here.

[0100] In an alternative embodiment of the clamping device 100, please refer to Figure 1 、 Figure 2 、 Figure 3A 、 Figure 4 and Figure 5The clamping device 100 includes a clamping unit 110, which includes a protective member 10, a distance sensor 50, a first connector 30, a second connector 40, and two clamping members 20. The two clamping members 20 are arranged opposite each other and spaced apart, and are used to clamp the battery cell 200. Each clamping member 20 is connected to the protective member 10. The two clamping members 20 and the protective member 10 together define a storage space for accommodating the battery cell 200. The protective member 10 includes a partition 11. The partition 11 has an abutting surface on the side facing the storage space, which is used to abut the outer shell of the battery cell 200. At least a portion of the partition 11 is disposed between the liquid injection port of the battery cell 200 and the terminal of the battery cell 200. The abutting direction X of the partition 11 intersects with the spacing direction Y of the two clamping members 20. The separator 11 includes a first portion 111, a second portion 112, and a third portion 113. The first portion 111 is connected to the second portion 112 and the third portion 113, respectively. Together, the first, second, and third portions 111, 112, 113 form a receiving slot 12. The first, second, and third portions 111, 112, 113 are configured to abut against the outer casing. The receiving slot 12 is configured to accommodate the terminal, with the first portion 111 positioned between the liquid inlet and the terminal. The receiving slot 12 also serves to cover a QR code disposed on the outer casing. The clamping member 20 is provided with a first elongated slot 231. The clamping member 20 is detachably connected to the protective member 10 via a first connector 30. A portion of the first connector 30 is positioned within the first elongated slot 231, and its position within the first elongated slot 231 is adjustable along its length. The length of the first elongated slot 231 coincides with the spacing direction Y between the two clamping members 20. The clamping member 20 includes a support 21 and a clamping body 22. The clamping body 22 is adjustably connected to the support 21, and the position of the clamping body 22 relative to the protective member 10 along the abutment direction X of the partition 11 is adjustable. The clamping member 20 also includes an adapter 23, and the protective member 10 is connected to the adapter 23. The support 21 is provided with a second elongated slot 211. The clamping unit 110 also includes a second connecting member 40. The adapter 23 is detachably connected to the clamping body 22 via the second connecting member 40. A portion of the second connecting member 40 is located within the second elongated slot 211. The position of the second connecting member 40 within the second elongated slot 211 along the abutment direction X of the partition 11 is adjustable. The length direction of the second elongated slot 211 is the same as the abutment direction X of the partition 11. The adapter 23 is provided with the above-mentioned first elongated slot 231. The clamping body 22 has a clamping portion. The clamping portions of the two clamping members 20 are used to clamp the battery cell 200. The surface of the clamping portion facing the accommodation space is provided with an anti-slip structure 221. The anti-slip structure 221 is a plurality of protrusions arranged at intervals.

[0101] Before the battery cell 200 is clamped, the clamping unit 110 can be driven to move downward so that the abutting surface abuts against the outer shell of the battery cell 200, so that the partition 11 separates the liquid filling port and the pole, and then the two clamping members 20 are driven to move toward each other to clamp the battery cell 200. The partition 11 can prevent the probability of the electrode liquid splashing onto the pole during the clamping process, so as to improve the situation where the pole is corroded by the electrolyte. The first portion 111, the second portion 112, and the third portion 113 together form a receiving groove 12. Compared with a structure using only the first portion 111, the shielding area of ​​the pole can be increased to reduce the probability of electrolyte splashing onto the pole. In addition, during the clamping process, the pole can be moved within the receiving groove 12 to adapt to changes in the position of the pole. At the same time, the position of the protective member 10 relative to the adapter 23 along the spacing direction Y between the two clamping members 20 is adjustable, and the position of the protective member 10 relative to the clamping body 22 is adjustable, so that the clamping device 100 can clamp battery cells 200 of different specifications, thereby improving the applicability of the clamping device 100.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A clamping device for clamping a battery cell, characterized in that: include: A clamping unit, the clamping unit includes a protective piece and two clamping members, the two clamping members are arranged opposite to each other and at intervals, the two clamping members are used to clamp the battery cell, each of the clamping members is connected to the protective piece, the two clamping members and the protective piece jointly define a accommodating space for accommodating the battery cell, the protective piece includes a partition, the partition has an abutting surface on the side facing the accommodating space, the abutting surface is used to abut with the outer shell of the battery cell, and at least part of the partition is arranged between the liquid filling port of the battery cell and the pole of the battery cell, and the abutting direction of the partition intersects with the spacing direction of the two clamping members.

2. The clamping device according to claim 1, characterized in that The partition includes a first part, a second part and a third part, the first part is connected to the second part and the third part respectively, the first part, the second part and the third part are combined to form a receiving groove, and the first part, the second part and the third part are respectively used to abut against the outer shell, the receiving groove is used to accommodate the pole, and the first part is used to be arranged between the liquid injection port and the pole.

3. The clamping device according to claim 1, characterized in that The separator is an annular structure and is used to surround the pole.

4. The clamping device according to any one of claims 1 to 3, characterized in that: The clamping member is provided with a first long slot hole, and the clamping unit also includes a first connecting piece. The clamping member is detachably connected to the protective piece through the first connecting piece. Part of the first connecting piece is located in the first long slot hole, and the position of the first connecting piece in the first long slot hole is adjustable along the length direction of the first long slot hole. The length direction of the first long slot hole is the same as the spacing direction of the two clamping members.

5. The clamping device according to any one of claims 1 to 3, characterized in that: The clamping member comprises: Support; The clamping body is connected to the support in an adjustably manner, and the position of the clamping body relative to the protective element along the abutting direction of the partition is adjustable.

6. The clamping device according to claim 5, characterized in that The clamping member also includes an adapter, the protective member is connected to the adapter, the support or the adapter is provided with a second long slot hole, the clamping unit also includes a second connecting member, the adapter is detachably connected to the support through the second connecting member, part of the second connecting member is located in the second long slot hole, the position of the second connecting member in the second long slot hole along the abutment direction of the partition is adjustable, and the length direction of the second long slot hole is the same as the abutment direction of the partition.

7. The clamping device according to any one of claims 1 to 3, characterized in that: The clamping member has a clamping portion, and the clamping portions of the two clamping members are used to clamp the battery cells. The surfaces of the clamping portions facing the accommodation space are provided with an anti-slip structure.

8. The clamping device according to claim 7, characterized in that: The anti-slip structure includes a plurality of protrusions, and the plurality of protrusions are arranged at intervals.

9. The clamping device according to any one of claims 1 to 3, characterized in that: The clamping unit further includes a distance sensor. One of the two clamping members is provided with the distance sensor, and the distance sensor is used to detect the distance between the housing and the abutting surface.

10. A battery production system, characterized in that: The clamping device comprises the clamping device according to any one of claims 1 to 9, wherein the clamping device is used to clamp the battery cell.

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