Battery cell pressurizing device

Abstract

The utility model provides a battery cell pressurizing device, which relates to the technical field of battery production, is used for pressurizing a battery cell, and comprises a first driving mechanism, a second driving mechanism, a first jig plate, a second jig plate and a clamping piece, the first jig plate and the second jig plate are oppositely arranged in the first direction, and the two ends of the clamping piece are detachably connected with the end of the first jig plate and the end of the second jig plate respectively. The driving end of the first driving mechanism is connected with the second jig plate and can push the second jig plate to move to a first position in the direction far away from the first jig plate, so that the opening amplitude of the clamping piece is larger than the thickness of a battery cell to be clamped; and the driving end of the second driving mechanism can drive the second jig plate to reach the second position, so that the distance between the second jig plate and the first jig plate is matched with the opening amplitude of the clamping piece in the clamping state, manual operation is not needed during battery cell pressure maintaining and pressure relief operation, and the operation efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery core pressurizing device. Background Art

[0002] Both soft-pack batteries and square-shell batteries need to go through the battery pressure maintenance process. This process is to apply a certain clamping force to the surface of the battery product and maintain it for a period of time so that the inside of the battery is flat and tight and the external dimensions meet the design.

[0003] There are many ways to maintain pressure during the production process. For example, in the production of square cores, the automatic production line will place the battery cells into a jig for pressure maintenance, using an oil cylinder or electric cylinder to achieve upper and lower pressing.

[0004] However, in the experimental production line, the operations of maintaining and releasing pressure on the battery cells still require manual opening of the clamps, which is not only inefficient but also unsafe.

[0005] Therefore, there is an urgent need to provide a battery core pressurizing device to solve the problems existing in the prior art to a certain extent. Utility Model Content

[0006] The utility model aims to provide a battery core pressurizing device, so as to solve the problem that the current battery core pressure maintaining and pressure relief operations require manual operation, resulting in low operating efficiency and safety.

[0007] The utility model provides a battery cell pressurizing device for pressurizing a battery cell, comprising a first driving mechanism, a second driving mechanism, a first jig plate, a second jig plate and a clamping piece; the first jig plate and the second jig plate are arranged opposite to each other in a first direction, and the two ends of the clamping piece are detachably connected to the ends of the first jig plate and the second jig plate respectively; the driving end of the first driving mechanism is connected to the second jig plate, and can push the second jig plate to move in a direction away from the first jig plate to a first position, so that the opening amplitude of the clamping piece is greater than the thickness of the battery cell to be clamped; the driving end of the second driving mechanism can drive the second jig plate to reach the second position, so that the distance between the second jig plate and the first jig plate is adapted to the opening amplitude of the clamping piece when it is in a clamping state.

[0008] A first groove is formed at one end of the first jig plate facing the second jig plate, and a second groove is formed at one end of the second jig plate facing the first jig plate. The shapes of the first groove and the second groove are adapted to the two ends of the clamping member so that the two ends of the clamping member can be placed in the first groove and the second groove, respectively.

[0009] Specifically, the first driving mechanism includes a first driving member, a first push plate and a first starting valve, and the second driving mechanism includes a second driving member, a second push plate and a second starting valve; the first starting valve is connected to the first driving member, the driving end of the first driving member is connected to the first push plate, and the first push plate is connected to the second fixture plate; the second starting valve is connected to the second driving member, the driving end of the second driving member is connected to the second push plate, and the second driving member can drive the second push plate to move toward or away from the first push plate.

[0010] Among them, the battery cell pressurizing device provided by the utility model also includes a frame, and the first driving mechanism, the second driving mechanism and the first fixture plate are all arranged on the frame.

[0011] Specifically, the frame is provided with a first limit assembly, and the first limit assembly is located on the side of the first push plate away from the second fixture plate; when the side of the first push plate away from the second fixture plate abuts against the limit end of the first limit assembly, the second fixture plate reaches the first position.

[0012] Further, the first limiting assembly includes a first positioning seat, a first buffer and a first limiting column; the first positioning seat is connected to the frame, the first buffer and the first limiting column are both connected to the first positioning seat, and the distance between the buffer end of the first buffer and the first push plate is smaller than the distance between the limit end of the first limiting column and the first push plate.

[0013] Specifically, a second limit assembly is also provided on the frame, and the second limit assembly is located on the side of the second push plate facing the first push plate; when the side of the second push plate facing the first push plate abuts against the limit end of the second limit assembly, the second push plate pushes the first push plate to drive the second fixture plate to reach the second position.

[0014] Furthermore, the second limiting assembly includes a second positioning seat, a second buffer and a second limiting column; the second positioning seat is connected to the frame, the second buffer and the second limiting column are both connected to the second positioning seat, and the distance between the buffer end of the second buffer and the second push plate is smaller than the distance between the limit end of the second limiting column and the second push plate.

[0015] Furthermore, the second fixture plate is provided with a scale, and the scale extends along the second direction.

[0016] Furthermore, the battery cell pressurizing device provided by the utility model also includes a first positioning plate and a second positioning plate, and the first positioning plate and the second positioning plate are respectively arranged on both sides of the battery cell, and are used to cooperate with the clamping member to clamp the battery cell, and when the second jig plate is in the second position, the clamping member can be clamped on the first positioning plate and the second positioning plate; when the second jig plate is in the first position, the clamping member can release the first positioning plate and the second positioning plate.

[0017] Compared with the prior art, the battery core pressurizing device provided by the utility model has the following advantages:

[0018] The battery cell pressurizing device provided by the utility model is used for pressurizing the battery cell, and includes a first driving mechanism, a second driving mechanism, a first jig plate, a second jig plate and a clamping piece; the first jig plate and the second jig plate are arranged opposite to each other in a first direction, and the two ends of the clamping piece are detachably connected to the ends of the first jig plate and the second jig plate respectively; the driving end of the first driving mechanism is connected to the second jig plate, and can push the second jig plate to move in a direction away from the first jig plate to a first position, so that the opening amplitude of the clamping piece is greater than the thickness of the battery cell to be clamped; the driving end of the second driving mechanism can drive the second jig plate to reach the second position, so that the distance between the second jig plate and the first jig plate is adapted to the opening amplitude of the clamping piece when it is in the clamping state.

[0019] From this analysis, it can be seen that by detachably setting a clamping member at the ends of the relatively arranged first jig plate and the second jig plate, and connecting the driving end of the first driving mechanism to the second jig plate, when the two ends of the clamping member are respectively connected to the first jig plate and the second jig plate, the second jig plate is pushed by the first driving mechanism to move away from the first jig plate and reach the first position, the opening amplitude of the clamping member can be greater than the thickness of the battery cell to be clamped, so that the battery cell to be clamped can be placed in the opening space of the clamping member and clamped and pressurized by the clamping member.

[0020] Furthermore, by making the driving end of the second driving mechanism drive the second jig plate to the second position, the opening amplitude of the clamping member can be reduced compared with the opening amplitude of the first position, and then can be adapted to the opening amplitude of the clamping member clamped on the battery cell, so that the clamping member can be smoothly connected with the corresponding first jig plate and second jig plate in the clamping state, and after the connection, the second jig plate is again driven by the first driving mechanism to move away from the first jig plate, so as to realize the expansion of the clamping member, thereby realizing the action of the clamping member detaching the battery cell.

[0021] Therefore, when the battery cell pressurizing device provided by the present application needs to clamp and pressurize the battery cell, the clamping member is first installed on the first fixture plate and the second fixture plate, and then the second fixture plate is driven by the first driving mechanism to move away from the first fixture plate until the opening amplitude of the clamping member is greater than the thickness of the battery cell to be clamped, and the battery cell can be placed in the opening space of the clamping member. Finally, the first driving mechanism is stopped from applying force to the second fixture plate, so that the clamping member can be stably clamped on the edge of the battery cell to apply pressure to the battery cell.

[0022] When the clamping operation is completed on one side of the battery cell, the second driving mechanism can drive the second jig plate to move away from the first jig plate and reach the second position, so that the distance between the first jig plate and the second jig plate can be adapted to the opening amplitude of the clamping member, and the clamping member can be smoothly removed from the first jig plate and the second jig plate to achieve the clamping and pressurizing operation on one side of the battery cell.

[0023] It is understandable that, taking a rectangular battery cell as an example, repeating the above actions can achieve the installation of the clamps on both sides or four sides of the battery cell. Accordingly, when the clamp needs to be disassembled, the second fixture plate is first moved to the second position by the second driving mechanism, and then the clamp clamped on the battery cell is connected to the first fixture plate and the second fixture plate accordingly, and finally, the second fixture plate is moved to the first position by the first driving mechanism, and the battery cell can be taken out, completing the disassembly of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the overall structure of a battery cell pressurizing device provided by an embodiment of the utility model from a first perspective;

[0026] Figure 2 A schematic diagram of the overall structure of the battery cell pressurizing device provided by an embodiment of the utility model from a second viewing angle;

[0027] Figure 3 A schematic diagram of the overall structure of the battery core pressurizing device provided by an embodiment of the utility model from a third viewing angle;

[0028] Figure 4 for Figure 2 A partial enlarged view of the middle A;

[0029] Figure 5A schematic diagram of the local structure of the clamping member in the clamping state in the battery cell pressurizing device provided in an embodiment of the utility model.

[0030] In the figure: 1-first driving member; 2-first starting valve; 3-second driving member; 4-second starting valve; 5-first push plate; 6-second push plate; 7-first fixture plate; 701-first groove; 8-second fixture plate; 801-second groove; 802-scale; 9-clamping member; 10-first limiting assembly; 1001-first positioning seat; 1002-first buffer member; 1003-first limiting column; 11-second limiting assembly; 1101-second positioning seat; 1102-second buffer member; 1103-second limiting column; 12-first positioning plate; 13-second positioning plate; 14-battery cell; 15-frame; 1501-substrate; 1502-gantry;

[0031] S1-first direction; S2-second direction. DETAILED DESCRIPTION

[0032] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0033] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0037] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0038] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0039] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0040] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0041] like Figure 1-Figure 5As shown, the utility model provides a battery cell pressurizing device for pressurizing the battery cell, comprising a first driving mechanism, a second driving mechanism, a first jig plate 7, a second jig plate 8 and a clamping member 9; the first jig plate 7 and the second jig plate 8 are arranged relatively to each other in a first direction S1, and the two ends of the clamping member 9 are detachably connected to the ends of the first jig plate 7 and the second jig plate 8 respectively; the driving end of the first driving mechanism is connected to the second jig plate 8, and can push the second jig plate 8 to move in a direction away from the first jig plate 7 to a first position, so that the clamping member 9 is fully opened; the driving end of the second driving mechanism can push the second driving mechanism to drive the second jig plate 8 to reach the second position, so as to reduce the opening range of the clamping member 9.

[0042] Compared with the prior art, the battery core pressurizing device provided by the utility model has the following advantages:

[0043] The battery cell pressurizing device provided by the utility model is characterized in that a clamping member 9 is detachably arranged at the ends of the first jig plate 7 and the second jig plate 8 which are arranged opposite to each other, and the driving end of the first driving mechanism is connected to the second jig plate 8. Therefore, when the two ends of the clamping member 9 are respectively connected to the first jig plate 7 and the second jig plate 8, the second jig plate 8 is pushed by the first driving mechanism to move away from the first jig plate 7 and reach the first position, so that the opening amplitude of the clamping member 9 can be greater than the thickness of the battery cell 14 to be clamped, so that the battery cell 14 to be clamped can be placed in the opening space of the clamping member 9 and clamped and pressurized by the clamping member 9.

[0044] Furthermore, by making the driving end of the second driving mechanism drive the second fixture plate 8 to reach the second position, the opening amplitude of the clamping member 9 can be reduced compared with the opening amplitude of the first position, and then can be adapted to the opening amplitude of the clamping member 9 clamped on the battery cell 14, so that the clamping member 9 can be smoothly connected with the corresponding first fixture plate 7 and second fixture plate 8 in the clamping state, and after the connection, the second fixture plate 8 is driven by the first driving mechanism again to move away from the first fixture plate 7, so as to realize the expansion of the clamping member 9, thereby realizing the action of detaching the clamping member 9 from the battery cell 14.

[0045] Therefore, when the battery cell pressurizing device provided by the present application needs to clamp the battery cell 14 with the clamping member 9, the clamping member 9 is first installed on the first fixture plate 7 and the second fixture plate 8, and then the second fixture plate 8 is driven by the first driving mechanism to move away from the first fixture plate 7 until the opening amplitude of the clamping member 9 is greater than the thickness of the battery cell 14 to be clamped, and the battery cell 14 can be placed in the opening space of the clamping member 9. Finally, the first driving mechanism is stopped from applying force to the second fixture plate 8, so that the clamping member 9 can be stably clamped on the edge of the battery cell 14 to apply pressure to the battery cell 14.

[0046] When the clamping operation of the clamping member 9 is completed on one side of the battery cell 14, the second driving mechanism can drive the second jig plate 8 to move away from the first jig plate 7 and reach the second position, so that the distance between the first jig plate 7 and the second jig plate 8 can be adapted to the opening amplitude of the clamping member 9, and then the clamping member 9 can be smoothly removed from the first jig plate 7 and the second jig plate 8, thereby realizing the clamping and pressurizing operation on one side of the battery cell 14.

[0047] It can be understood that, taking the rectangular battery cell 14 as an example, repeating the above actions can realize the installation of the clamping members 9 on both sides or four sides of the battery cell 14. Accordingly, when the clamping member 9 needs to be disassembled, the second fixture plate 8 is first moved to the second position by the second driving mechanism, and then the clamping member 9 clamped on the battery cell 14 is connected to the first fixture plate 7 and the second fixture plate 8 accordingly, and finally, the second fixture plate 8 is moved to the first position by the first driving mechanism, and the battery cell 14 can be taken out, and the disassembly of the clamping member 9 is completed.

[0048] It should be noted here that the first driving mechanism and the second driving member in the present application can adopt a cylinder or an oil cylinder, and the above-mentioned clamping member 9 is a spring clamp. When the first driving mechanism and the second driving member are started, the driving ends of the first driving mechanism and the second driving member can apply pressure to the second fixture plate 8 and drive the second fixture plate 8 to move to the first position and the second position. When the first driving mechanism and the second driving member are closed, the driving ends of the first driving mechanism and the second driving member are in a natural state, that is, no pressure or tension is generated on the second fixture plate 8. Therefore, after the battery cell 14 is placed in the open space and the first driving mechanism is closed, the clamping member 9 can be clamped on the battery cell 14 under the action of the restoring force of the clamping member 9, and the first driving mechanism and the second driving mechanism will not apply external force to the second fixture plate 8 again, causing the clamping member 9 to detach from the battery cell 14.

[0049] Alternatively, if Figure 5 As shown, a first groove portion 701 is formed at one end of the first jig plate 7 facing the second jig plate 8, and a second groove portion 801 is formed at one end of the second jig plate 8 facing the first jig plate 7. The shapes of the first groove portion 701 and the second groove portion 801 are adapted to the two ends of the clamping member 9 so that the two ends of the clamping member 9 can be placed in the first groove portion 701 and the second groove portion 801 respectively.

[0050] like Figure 1 Combination Figure 5As shown, the first jig plate 7 and the second jig plate 8 in the present application both extend along the second direction S2, therefore, the above-mentioned first groove portion 701 and the second groove portion 801 both extend along the second direction S2, and by forming the first groove portion 701 at one end of the first jig plate 7 toward the second jig plate 8 and forming the second groove portion 801 at one end of the second jig plate 8 toward the first jig plate 7, both ends of the clamping member 9 can be stably positioned.

[0051] Preferably, if Figure 5 As shown, since hook structures are formed at both ends of the clamping member 9 in the present application, the shapes of the first groove portion 701 and the second groove portion 801 in the present application are adapted to the shapes of the two ends of the clamping member 9, thereby achieving stable bearing on the ends of the clamping member 9.

[0052] It can be understood that both ends of the first groove portion 701 and the second groove portion 801 in the second direction S2 in the present application pass through both ends of the first jig plate 7 and the second jig plate 8 in the length direction, that is, the clamping member 9 in the present application can enter the first groove portion 701 and the second groove portion 801 from any end of the two ends of the first jig plate 7 and the second jig plate 8 in the second direction S2, and after entering the first groove portion 701 and the second groove portion 801, the clamping member 9 can only be removed from the ends of the first jig plate 7 and the second jig plate 8. On the one hand, a larger number of clamping members 9 can be arranged in the first groove portion 701 and the second groove portion 801, and on the other hand, a stable connection between the clamping member 9 and the first jig plate 7 and the second jig plate 8 can also be achieved.

[0053] Alternatively, if Figure 1-Figure 3 As shown, based on the above structure, the present application provides an implementation method that can stably realize the above functions, wherein the first driving mechanism includes a first driving member 1, a first push plate 5 and a first starting valve 2, and the second driving mechanism includes a second driving member 3, a second push plate 6 and a second starting valve 4; the first starting valve 2 is connected to the first driving member 1, and the driving end of the first driving member 1 is connected to the first push plate 5, and the first push plate 5 is connected to the second fixture plate 8; the second starting valve 4 is connected to the second driving member 3, and the driving end of the second driving member 3 is connected to the second push plate 6, and the second driving member 3 can drive the second push plate 6 to move in a direction close to or away from the first push plate 5.

[0054] The first start valve 2 and the second start valve 4 in the present application are both foot valves, and the first drive member 1 and the second drive member 3 are both cylinders. By stepping on the first start valve 2 and the second start valve 4, gas can be delivered to the first drive member 1 and the second drive member 3 to realize the action of the drive ends of the first drive member 1 and the second drive member 3. When the stepping on the first start valve 2 and the second start valve 4 is stopped, the gas delivery stops, and the drive ends of the first drive member 1 and the second drive member 3 return to a natural state, and no longer apply force to the corresponding first push plate 5 and the second push plate 6.

[0055] It should be supplemented here that, in the present application, by connecting the driving end of the first driving member 1 with the first push plate 5, and thereby connecting the first push plate 5 with the second jig plate 8, the second jig plate 8 can be pushed stably, and by connecting the driving end of the second driving member 3 with the second push plate 6, the contact area between the second driving member 3 and the first push plate 5 can be increased, thereby achieving stable driving of the first push plate 5, and then the second jig plate 8 can be stably driven to reach the second position.

[0056] Preferably, if Figure 1-Figure 3 As shown, the battery cell pressurizing device provided by the utility model further includes a frame 15 , and the first driving mechanism, the second driving mechanism and the first fixture plate 7 are all arranged on the frame 15 .

[0057] It can be understood that the frame 15 in the present application includes a gantry 1502 and a base plate 1501, the gantry 1502 is arranged on the base plate 1501 to form a frame structure, the first drive mechanism is connected to the gantry 1502, and the second drive mechanism and the first fixture plate 7 are connected to the base plate 1501, so that the battery cell pressurizing device provided in the present application can form a stable and sufficient working space.

[0058] Alternatively, if Figure 2 Combination Figure 4 As shown, a first limit assembly 10 is provided on the frame 15 in the present application, and the first limit assembly 10 is located on the side of the first push plate 5 away from the second fixture plate 8; when the side of the first push plate 5 away from the second fixture plate 8 abuts against the limit end of the first limit assembly 10, the second fixture plate 8 reaches the first position.

[0059] By setting the first limit assembly 10 on the frame 15, and extending the limit end of the first limit assembly 10 toward the side of the second fixture plate 8 away from the first push plate 5, and spaced apart from the first push plate 5, when the first push plate 5 moves toward the limit end of the first limit assembly 10 and abuts against the limit end, the second fixture plate 8 can reach the first position and no longer rise, thereby avoiding the problem of damage to the clamping member 9 caused by excessive pulling on the clamping member 9 to a certain extent.

[0060] Based on the above structure, Figure 4 As shown, the first limiting assembly 10 in the present application includes a first positioning seat 1001, a first buffer member 1002 and a first limiting column 1003; the first positioning seat 1001 is connected to the frame 15, the first buffer member 1002 and the first limiting column 1003 are both connected to the first positioning seat 1001, and the distance between the buffer end of the first buffer member 1002 and the first push plate 5 is smaller than the distance between the limiting end of the first limiting column 1003 and the first push plate 5.

[0061] It can be understood that the first buffer member 1002 and the first limiting column 1003 in the present application are both connected to the first positioning seat 1001. Therefore, the buffer end of the above-mentioned first buffer member 1002 refers to the end of the first buffer member 1002 away from the first positioning seat 1001, that is, the end facing the first push plate 5. Correspondingly, the limiting end of the first limiting column 1003 is the end of the first limiting column 1003 away from the first positioning seat 1001, that is, the end facing the first push plate 5.

[0062] By making the distance between the buffer end of the first buffer member 1002 and the first push plate 5 smaller than the distance between the limit end of the first limit column 1003 and the first push plate 5, that is, the buffer end of the first buffer member 1002 is closer to the first push plate 5 than the limit end of the first limit column 1003, when the first push plate 5 moves upward, it can first contact the buffer end of the first buffer member 1002, and then through the buffering of the first buffer member 1002 on the first push plate 5, the first push plate 5 can be relatively gently in contact with the limit end of the first limit member. On the one hand, it can improve the service life of the overall structure. On the other hand, it can also avoid the first push plate 5 directly contacting the limit end of the first limit member, causing the first push plate 5 to produce a certain amplitude of rebound vibration, so that the operation of the overall structure is more stable.

[0063] Alternatively, if Figure 4 As shown, a second limit assembly 11 is also provided on the frame 15 in the present application, and the second limit assembly 11 is located on the side of the second push plate 6 facing the first push plate 5; when the side of the second push plate 6 facing the first push plate 5 abuts against the limit end of the second limit assembly 11, the second push plate 6 pushes the first push plate 5 to drive the second fixture plate 8 to reach the second position.

[0064] By setting a second limiting component 11 at a position corresponding to the second push plate 6 on the frame 15, the second push plate 6 can be limited. When the second push plate 6 abuts against the second limiting component 11, the second jig plate 8 can accurately reach the second position, ensuring the distance accuracy between the second jig plate 8 and the first jig plate 7, so that the clamping member 9 can smoothly enter the above-mentioned first groove 701 and second groove 801.

[0065] Accordingly, if Figure 4As shown, the second limiting assembly 11 in the present application includes a second positioning seat 1101, a second buffer member 1102 and a second limiting column 1103; the second positioning seat 1101 is connected to the frame 15, the second buffer member 1102 and the second limiting column 1103 are both connected to the second positioning seat 1101, and the distance between the buffer end of the second buffer member 1102 and the second push plate 6 is smaller than the distance between the limiting end of the second limiting column 1103 and the second push plate 6.

[0066] In the present application, the buffer end of the second buffer member 1102 refers to an end of the second buffer member 1102 away from the second positioning seat 1101 , and the limiting end of the second limiting column 1103 refers to an end of the second limiting column 1103 away from the second positioning seat 1101 .

[0067] It can be understood that the functions and effects of the second buffer member 1102 and the second limit member in the present application are the same as those of the first buffer member 1002 and the first limit member mentioned above, specifically, buffering and limiting the second push plate 6, which will not be repeated here.

[0068] Furthermore, if Figure 1 As shown, the second fixture plate 8 in the present application is provided with a scale, and the scale extends along the second direction S2.

[0069] The first direction S1 in the present application is the vertical direction, and the second direction S2 is the length direction of the frame 15. Therefore, by providing a scale on the second fixture plate 8 and extending the scale along the second direction S2, the arrival position of the clamp 9 can be accurately located, and when multiple clamps 9 are required, a reference can also be provided for the setting intervals between the multiple clamps 9 to ensure that the pressure of the clamps 9 on the battery cells 14 is balanced.

[0070] Preferably, the distance between the scales 802 of the scale ruler in the present application is 1 mm.

[0071] Furthermore, if Figure 1-Figure 5 As shown, the battery cell pressurizing device provided by the utility model also includes a first positioning plate 12 and a second positioning plate 13. The first positioning plate 12 and the second positioning plate 13 are respectively arranged on both sides of the battery cell 14, and are used to cooperate with the clamping member 9 to clamp the battery cell 14, and when the second fixture plate 8 is in the second position, the clamping member 9 can be clamped on the first positioning plate 12 and the second positioning plate 13; when the second fixture plate 8 is in the first position, the clamping member 9 can release the first positioning plate 12 and the second positioning plate 13.

[0072] The first positioning plate 12 and the second positioning plate 13 in the present application are glass plates, and during operation, the first positioning plate 12 and the second positioning plate 13 are respectively arranged on both sides of the battery cell 14, so that when the clamping member 9 performs a clamping action, the clamping member 9 contacts the first positioning plate 12 and the second positioning plate 13, so that the clamping force is applied to the first positioning plate 12 and the second positioning plate 13, so as to avoid the problem of damage to the battery cell 14 due to excessive clamping force of the clamping member 9.

[0073] Therefore, when the second fixture plate 8 is in the first position, the opening range of the clamping member 9 is greater than the thickness of the battery cell 14 to be clamped, which means that the opening range is greater than the common thickness of the first positioning plate 12 and the second positioning plate 13 when clamping the battery cell 14. The opening range of the clamping member 9 in the clamping state refers to the total thickness of the first positioning plate 12, the second positioning plate 13 and the battery cell 14.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery cell pressurizing device, used for pressurizing a battery cell, characterized in that: It comprises a first driving mechanism, a second driving mechanism, a first fixture plate (7), a second fixture plate (8) and a clamping member (9); The first jig plate (7) and the second jig plate (8) are arranged opposite to each other in a first direction, and two ends of the clamping member (9) are detachably connected to the ends of the first jig plate (7) and the second jig plate (8) respectively; The driving end of the first driving mechanism is connected to the second fixture plate (8) and is capable of pushing the second fixture plate (8) to move to a first position in a direction away from the first fixture plate (7), so that the opening amplitude of the clamping member (9) is greater than the thickness of the battery cell (14) to be clamped; The driving end of the second driving mechanism can drive the second fixture plate (8) to reach a second position so that the distance between the second fixture plate (8) and the first fixture plate (7) is adapted to the opening amplitude of the clamping member (9) in the clamping state.

2. The battery cell pressurizing device according to claim 1, characterized in that: A first groove (701) is formed at one end of the first jig plate (7) facing the second jig plate (8), and a second groove (801) is formed at one end of the second jig plate (8) facing the first jig plate (7). The shapes of the first groove (701) and the second groove (801) are adapted to the two ends of the clamp (9), so that the two ends of the clamp (9) can be placed in the first groove (701) and the second groove (801), respectively.

3. The battery cell pressurizing device according to claim 1, characterized in that: The first driving mechanism comprises a first driving member (1), a first push plate (5) and a first starting valve (2); the second driving mechanism comprises a second driving member (3), a second push plate (6) and a second starting valve (4); The first starting valve (2) is connected to the first driving member (1), the driving end of the first driving member (1) is connected to the first push plate (5), and the first push plate (5) is connected to the second fixture plate (8); The second starting valve (4) is connected to the second driving member (3), the driving end of the second driving member (3) is connected to the second push plate (6), and the second driving member (3) is capable of driving the second push plate (6) to move in a direction approaching or away from the first push plate (5).

4. The battery cell pressurizing device according to claim 3, characterized in that: It also comprises a frame (15), on which the first driving mechanism, the second driving mechanism and the first fixture plate (7) are all arranged.

5. The battery cell pressurizing device according to claim 4, characterized in that: The frame (15) is provided with a first limiting assembly (10), and the first limiting assembly (10) is located on a side of the first push plate (5) facing away from the second fixture plate (8); When the side of the first push plate (5) facing away from the second fixture plate (8) abuts against the limiting end of the first limiting assembly (10), the second fixture plate (8) reaches the first position.

6. The battery cell pressurizing device according to claim 5, characterized in that: The first limiting assembly (10) comprises a first positioning seat (1001), a first buffer (1002) and a first limiting column (1003); The first positioning seat (1001) is connected to the frame (15), the first buffer member (1002) and the first limiting column (1003) are both connected to the first positioning seat (1001), and the distance between the buffer end of the first buffer member (1002) and the first push plate (5) is smaller than the distance between the limiting end of the first limiting column (1003) and the first push plate (5).

7. The battery cell pressurizing device according to claim 4, characterized in that: The frame (15) is also provided with a second limiting assembly (11), and the second limiting assembly (11) is located on a side of the second push plate (6) facing the first push plate (5); When the second push plate (6) abuts against the limiting end of the second limiting assembly (11) toward one side of the first push plate (5), the second push plate (6) pushes the first push plate (5) to drive the second fixture plate (8) to reach the second position.

8. The battery cell pressurizing device according to claim 7, characterized in that: The second limiting assembly (11) comprises a second positioning seat (1101), a second buffer (1102) and a second limiting column (1103); The second positioning seat (1101) is connected to the frame (15), the second buffer member (1102) and the second limiting column (1103) are both connected to the second positioning seat (1101), and the distance between the buffer end of the second buffer member (1102) and the second push plate (6) is smaller than the distance between the limiting end of the second limiting column (1103) and the second push plate (6).

9. The battery cell pressurizing device according to claim 1, characterized in that: The second fixture plate (8) is provided with a scale, and the scale extends along the second direction.

10. The battery cell pressurizing device according to claim 1, characterized in that: It also includes a first positioning plate (12) and a second positioning plate (13), wherein the first positioning plate (12) and the second positioning plate (13) are respectively arranged on both sides of the battery core (14) and are used to cooperate with the clamping member (9) to clamp the battery core (14), and when the second fixture plate (8) is in the second position, the clamping member (9) can be clamped on the first positioning plate (12) and the second positioning plate (13); When the second fixture plate (8) is in the first position, the clamping member (9) is capable of releasing the first positioning plate (12) and the second positioning plate (13).

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