Fixing mechanism and battery production line

Abstract

The utility model discloses a fixing mechanism and a battery production line, and relates to the technical field of battery production and manufacturing. The fixing mechanism comprises a side blocking assembly and a connecting base. The connecting base is arranged to be a rotating disc. The side blocking assembly is used for abutting against the side wall of the battery monomer and comprises a fixing component which is fixed relative to the connecting base; the fixing mechanism comprises a connecting piece and an abutting piece, the connecting piece comprises at least one part of the fixing component, and the abutting piece is detachably connected with the connecting piece; the hardness of the abutting parts is smaller than that of the connecting parts, and the abutting parts on the fixing components are used for abutting against the side walls of the battery monomers, so that the fixing mechanism can be suitable for the battery monomers in different size ranges by replacing the abutting parts of different specifications and sizes, and the installation and debugging efficiency is improved. In addition, the abutting pieces on the fixing components of the side baffle assemblies abut against the side wall surfaces of the battery monomers to fix the battery monomers, so that the positions of the battery monomers can be determined through the fixing components, and the positioning efficiency of the battery monomers can be improved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a fixing mechanism and a battery production line. Background Technology

[0002] In the manufacturing process of batteries such as lithium batteries and sodium batteries, it is usually necessary to use battery clamps and other fixing mechanisms to fix the battery cells so that welding equipment and other operating equipment can be used to perform sealing nail welding and other operations on the battery cells.

[0003] Different projects have different battery cell sizes and specifications, so it is usually necessary to adjust the clamping position of the fixing mechanism on the battery cell to secure it and determine its position relative to the fixing mechanism. In related technologies, taking the fixing mechanism corresponding to the sealing nail welding process as an example, the installation and debugging of the fixing mechanism is relatively complicated and time-consuming for each project due to the impact of cutting and pulling. Utility Model Content

[0004] The main purpose of this application is to propose a fixing mechanism and battery production line to improve installation and commissioning efficiency.

[0005] To achieve the above objectives, the fixing mechanism proposed in this application includes a side baffle assembly and a connecting base, wherein the connecting base is configured as a turntable; the side baffle assembly is used to abut against the side wall of the battery cell to fix the battery cell, the side baffle assembly is mounted on the connecting base, and the side baffle assembly includes a fixing member fixed relative to the connecting base; the fixing mechanism includes a connector and an abutment member, the connector includes at least a portion of the fixing member, and the abutment member is detachably connected to the connector; the hardness of the abutment member is less than the hardness of the connector, and the abutment member on the fixing member is used to abut against the side wall of the battery cell to fix the battery cell.

[0006] The fixing mechanism provided in this application allows for the detachable connection between the abutment and the connector, enabling the fixing mechanism to use abutment of different sizes and specifications. This makes it suitable for battery cells of different sizes, thereby improving the installation and debugging efficiency of the fixing mechanism for battery cells of different sizes. Furthermore, the abutment's hardness is lower than that of the connector, which helps reduce the risk of pinching or damaging the battery cell. The abutment on the fixing member of the side guard assembly abuts against the side wall surface of the battery cell to fix it. This allows the fixing member and the abutment to determine the position between the battery cell and the turntable-type connecting base, thus improving the positioning efficiency of the battery cell.

[0007] In some implementations, the side baffle assembly includes a first connecting frame, a second connecting frame, and a first side baffle. The first connecting frame is fixedly connected to a connecting base; the first side baffle is fixedly connected to the second connecting frame, and at least a portion of the first connecting frame is disposed opposite to the first side baffle in a first direction; the second connecting frame is slidably connected to the first connecting frame in a first direction, so that the first side baffle moves in the first direction to abut against the side wall of the battery cell; the aforementioned fixing member includes the first connecting frame, and the connecting member includes the portion of the first connecting frame disposed opposite to the first side baffle in the first direction, and the portion of the first connecting frame disposed opposite to the first side baffle in the first direction is detachably connected to the abutment member.

[0008] At this point, the fixing mechanism can slide between the second connecting frame and the first connecting frame in the first direction, thereby facilitating the quick and easy adjustment of the distance between the first side baffle on the second connecting frame and the first connecting frame in the first direction. This is beneficial for picking up and placing battery cells and for clamping and fixing battery cells of different sizes and specifications in the first direction. On the other hand, the fixing mechanism can determine the position between the battery cell and the turntable-shaped connecting base by using the portion of the first connecting frame that is opposite to the first side baffle in the first direction and the corresponding abutment, thereby improving the positioning efficiency of the battery cell.

[0009] In some implementations, the connector includes a first side baffle, which is detachably connected to an abutment.

[0010] At this time, since the first connecting frame is fixedly connected to the connecting base, the parts of the first side baffle and the first connecting frame that are opposite to the first side baffle in the first direction can be equipped with abutment parts of similar size and hardness respectively. This helps to keep the center position of battery cells of different sizes and specifications unchanged in the first direction relative to the connecting base and the working equipment, which helps to reduce the positioning error caused by the deformation of the abutment parts, and thus helps to reduce the amount of change in the working trajectory of the battery cells by the working equipment.

[0011] In some implementations, the side baffle assembly further includes a second side baffle, a portion of the first connecting frame is disposed opposite to the second side baffle in a second direction, and there is an angle between the first direction and the second direction; the second side baffle and the first connecting frame are slidably connected in the second direction to move in the second direction to abut against the side wall of the battery cell; the connector includes a portion of the first connecting frame disposed opposite to the second side baffle in the second direction, and the portion of the first connecting frame disposed opposite to the second side baffle in the second direction is detachably connected to the abutment.

[0012] At this point, the fixing mechanism can slide in the second direction through the second side baffle and the first connecting frame, thereby facilitating the quick and easy adjustment of the distance between the second side baffle and the first connecting frame in the second direction. This is beneficial for picking up and placing battery cells and for clamping and fixing battery cells of different sizes and specifications in the second direction. On the other hand, the fixing mechanism can determine the position between the battery cell and the turntable-shaped connecting base by the portion of the first connecting frame that is opposite to the second side baffle in the second direction and the corresponding abutment, thereby improving the positioning efficiency of the battery cell.

[0013] In some implementations, the connector includes a second side baffle, which is detachably connected to an abutment.

[0014] At this time, since the first connecting frame is fixedly connected to the connecting base, the second side baffle and the part of the first connecting frame that is opposite to the second side baffle in the second direction can be equipped with abutment parts of similar size and hardness respectively. This helps to keep the center position of battery cells of different sizes and specifications unchanged in the second direction relative to the connecting base and the working equipment, which helps to reduce the positioning error caused by the deformation of the abutment parts, and thus helps to reduce the amount of change in the working trajectory of the battery cells by the working equipment.

[0015] In some implementations, the side guard assembly further includes a first elastic component, one end of which is connected to a first connecting frame, and the other end of which is connected to a first side guard plate. The first elastic component is configured to either bring the first side guard plate closer to the battery cell or move the first side guard plate away from the battery cell. The fixing mechanism further includes a first driving member, which is kinetically connected to a second connecting frame. The first driving member is configured to either bring the first side guard plate closer to the battery cell or move the first side guard plate away from the battery cell.

[0016] At this time, the fixing mechanism can clamp and release the battery cell through the force of the first elastic component and the first driving component, respectively, via the first side baffle and the corresponding first connecting frame, thereby improving the efficiency of picking up and placing the battery cell.

[0017] In some implementations, the side guard assembly further includes a second elastic component, one end of which is connected to the first connecting frame, and the other end of which is connected to the second side guard. The second elastic component is configured to either bring the second side guard closer to the battery cell or move the second side guard away from the battery cell. The fixing mechanism further includes a second driving member, which is kinetically connected to the second side guard. The second driving member is configured to either bring the second side guard closer to the battery cell or move the second side guard away from the battery cell.

[0018] At this time, the fixing mechanism can clamp and release the battery cell through the force of the second elastic component and the second driving component, respectively, via the second side baffle and the corresponding first connecting frame, thereby improving the efficiency of picking up and placing the battery cell.

[0019] In some implementations, the side guard assembly also includes an adapter plate, and the connecting base has a seat through structure; one end of the adapter plate is fixedly connected to the second side guard, and the other end of the adapter plate passes through the seat through structure and extends to the side of the connecting base facing away from the second side guard; the side of the adapter plate away from the second side guard is connected to the second drive component for transmission.

[0020] At this point, the adapter plate connects to the second drive component via a transmission connection on the side furthest from the second side baffle. This helps to keep the second drive component away from the battery cells, thereby reducing the risk of the second drive component accidentally damaging the battery cells. Furthermore, the adapter plate has partial structures distributed on both sides of the connecting base, which helps to improve stability during power transmission.

[0021] In some implementations, the first direction and the second direction are parallel to the rotation plane of the turntable, the first direction has an angle with the circumferential direction of the turntable, and the second direction has an angle with the radial direction of the turntable; the side baffle assembly also includes a guide block, which is fixed relative to the second side baffle; the guide block is provided with a guide slope, which is inclined relative to the first direction and the second direction respectively; the driving end of the second driving member is used to move to abut against the guide slope, so as to form a driving component in the second direction and drive the second side baffle to move along the second direction.

[0022] At this time, when there is an angle between the first direction and the circumferential direction of the turntable, and an angle between the second direction and the radial direction of the turntable, the fixing mechanism provides a guide slope on the guide block, which facilitates the second driving member to drive the second side baffle on the outside of the turntable. This helps to move the driving end of the second driving member outward and away from the turntable, thereby reducing the risk of the second driving member accidentally interfering with the rotation of the turntable.

[0023] In some implementations, the fixing mechanism includes at least two sets of side baffle assemblies; in the rotation direction of the connecting base, the side baffle assemblies are spaced apart on the connecting base, and the first side baffle is used to rotate with the connecting base to be abutted by the driving end of the first driving member.

[0024] At this time, the first side baffle of each group of side baffle assemblies can move with the rotation of the connecting base to be driven by the first driving component, which helps to reduce the number of first driving components required, thereby helping to reduce the overall cost of the fixing mechanism.

[0025] In some implementations, the fixing mechanism includes at least two sets of side stop assemblies; in the rotation direction of the connecting base, the side stop assemblies are spaced apart on the connecting base, and the guide ramp is used to rotate with the connecting base to be abutted by the driving end of the second driving member.

[0026] At this time, the second side baffle of each group of side baffle assemblies can move with the rotation of the connecting base to be driven by the second driving component, which helps to reduce the number of second driving components required, thereby helping to reduce the overall cost of the fixing mechanism.

[0027] In some implementations, the fixing mechanism further includes a base support assembly for supporting the bottom wall of the battery cell and fixing the battery cell; the connector includes at least a portion of the base support assembly, which is detachably connected to an abutment.

[0028] At this point, the height of the battery cells can be easily adjusted by replacing the abutment parts on the base support assembly; in addition, the abutment parts on the base support assembly help to prevent the bottom surface of the battery cells from being bumped or damaged.

[0029] In some implementations, the fixing mechanism includes a socket structure located on the connector; the abutment has a through-hole structure positioned opposite to the socket structure; the fixing mechanism also includes a plug-in member, the first end of which passes through the through-hole structure and is detachably plugged into the socket structure; the second end of the plug-in member has a first abutment structure abutting against the side of the abutment member away from the connector.

[0030] At this time, the plug-in component can be detachably plugged into the plug hole structure on the connector, and the first abutting structure abuts against the abutting component, thereby making it convenient and quick to fix the abutting component, which is conducive to improving the installation efficiency of the abutting component and the installation and debugging efficiency of the fixing mechanism.

[0031] In some implementations, the insertion structure includes a mounting threaded hole and a threaded sleeve. The mounting threaded hole is located in the connector. The threaded sleeve has an external thread and is located inside the mounting threaded hole. The threaded sleeve is threadedly connected to the mounting threaded hole through the external thread. The first end of the connector extends into the threaded sleeve and is detachably inserted into the threaded sleeve.

[0032] At this point, the threaded sleeve is threadedly connected to the mounting threaded hole, which facilitates the replacement of the threaded sleeve. In addition, when the insertion position of the threaded sleeve and the connector is relatively fixed, the fixing mechanism can adjust the threaded connection position of the threaded sleeve relative to the mounting threaded hole of the connector, thereby adjusting the tightness of the connector's contact with the abutment, which helps to reduce the risk of the connector accidentally falling off due to excessive tightness.

[0033] In some implementations, one of the abutment and the connector is provided with a slot structure, and at least part of the other abutment and the connector is inserted into the slot structure.

[0034] At this point, the abutment and the connector are inserted through a slot structure, which helps to increase the contact area between the abutment and the connector and improves the connection stability between them.

[0035] In some implementations, one of the slot wall of the slot structure and the outer wall of the connector is provided with a first connecting groove, which extends to the socket of the slot structure; the other of the slot wall of the slot structure and the outer wall of the connector is provided with a protrusion, which is embedded in the first connecting groove; the protrusion abuts against the side wall of the first connecting groove on the side of the extending direction of the first connecting groove.

[0036] At this time, the protrusion is embedded in the first connecting groove, and the protrusion abuts against the side wall of the first connecting groove on the side of the extending direction of the first connecting groove. This helps to further increase the contact area between the abutting part and the connecting part through the protrusion and the first connecting groove, which helps to further improve the connection stability between the abutting part and the connecting part.

[0037] In some implementations, the slot wall of the slot structure or the outer wall of the connector has a clearance groove on the side of the protrusion, and the clearance groove extends to the socket of the slot structure.

[0038] At this time, when the protrusion and the first connecting groove are engaged, the clearance groove on the side of the protrusion helps to avoid the solid part on the side of the protrusion from interfering with the assembly of the first connecting groove, which helps to improve the assembly efficiency of the protrusion and the first connecting groove, thereby improving the assembly efficiency of the abutment and the connecting part.

[0039] In some implementations, one of the abutment and the connector is provided with a slot structure, and at least part of the other abutment and the connector is inserted into the slot structure; the slot wall of the slot structure is provided with a second connecting groove, which extends to the insertion port of the slot structure; the second connecting groove is provided on the side of the connector facing away from the insertion through structure, and the end of the threaded sleeve away from the insertion through structure extends out of the connector and into the second connecting groove.

[0040] At this time, the second connecting groove can provide the threaded sleeve with a movable space, which is conducive to improving the position adjustment efficiency of the threaded sleeve relative to the connector; in addition, the threaded sleeve can abut against the groove wall of the second connecting groove, which is conducive to limiting the connection between the connector and the abutting part, thereby further improving the connection stability between the connector and the abutting part.

[0041] This application also provides a battery production line, which includes the aforementioned fixed mechanism.

[0042] The battery production line provided in this application allows for detachable connection between the abutment and the connector, enabling the fixing mechanism to use abutments of different sizes and specifications. This makes it suitable for battery cells of various sizes, thereby improving the installation and commissioning efficiency of the fixing mechanism for battery cells of different sizes. Furthermore, the abutment's hardness is lower than that of the connector, reducing the risk of damaging the battery cells. The abutment on the fixing member of the side guard assembly abuts against the side wall surface of the battery cell to fix it. This allows the fixing member and the abutment to determine the position between the battery cell and the turntable-type connecting base, thus improving the positioning efficiency of the battery cell. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of an electrical device corresponding to an embodiment of this application;

[0045] Figure 2 This is a schematic diagram of a battery device corresponding to an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of a battery cell corresponding to an embodiment of this application;

[0047] Figure 4 An installation diagram of an embodiment of the fixing mechanism provided in this application;

[0048] Figure 5 A partial structural diagram of an embodiment of the fixing mechanism provided in this application;

[0049] Figure 6 A schematic diagram of the use of the base support component in one embodiment of the fixing mechanism provided in this application;

[0050] Figure 7 An exploded view of a partial structure of an embodiment of the fixing mechanism provided in this application;

[0051] Figure 8 An exploded view of another partial structure of an embodiment of the fixing mechanism provided in this application;

[0052] Figure 9 A schematic diagram of another partial structure of an embodiment of the fixing mechanism provided in this application;

[0053] Figure 10 for Figure 9 A magnified view of a section at point M;

[0054] Figure 11 An exploded view of another partial structure of an embodiment of the fixing mechanism provided in this application;

[0055] Figure 12 A schematic diagram of the installation of the abutment member in one embodiment of the fixing mechanism provided in this application;

[0056] Figure 13 A perspective view of the abutment member in one embodiment of the fixing mechanism provided in this application.

[0057] Explanation of icon numbers:

[0058] 10. Electrical equipment; 11. Electrical controller; 12. Motor;

[0059] 20. Battery assembly; 21. Battery housing; 22. Individual battery cell assembly;

[0060] 221. Battery cell; 222. Casing; 223. Top cover; 224. Adapter plate;

[0061] 225. Bare battery cell; 226. Electrode tab; 227. Electrode terminal;

[0062] 300. Fixing mechanism; 301. Insertion hole structure;

[0063] 3011. Mounting threaded hole; 3012. First enlarged hole; 3013. Second stepped structure;

[0064] 3014, threaded sleeve; 3015, second abutment structure; 302, first connecting groove;

[0065] 310. Side guard assembly; 311. First connecting frame; 3111. First fixing plate;

[0066] 3112. Second fixing plate; 3113. Third fixing plate; 3114. Support base;

[0067] 312. Second connecting frame; 313. First side baffle; 314. Second side baffle;

[0068] 315. First elastic component; 316. Second elastic component;

[0069] 317. Adapter plate; 318. Guide block; 3181. Guide ramp;

[0070] 320. Base support assembly; 321. Base support plate;

[0071] 330. Connecting base; 331. Through-body structure;

[0072] 340. Abutment component; 341. Insertion and penetration structure;

[0073] 3411. First through section; 3412. Second through section; 3413. First step structure;

[0074] 342. Slot structure; 3421. Raised bar; 3422. Clearance groove; 3423. Second connecting groove;

[0075] 350. First driving component; 360. Second driving component; 361. Rotating body;

[0076] 370. Connector; 371. First abutment structure.

[0077] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0078] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0079] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0080] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them; when the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0081] In the manufacturing process of batteries such as lithium batteries and sodium batteries, it is usually necessary to use battery clamps and other fixing mechanisms to fix the battery cells so that welding equipment and other operating equipment can be used to perform sealing nail welding and other operations on the battery cells.

[0082] Different projects have different battery cell sizes and specifications, so it is usually necessary to adjust the clamping position of the fixing mechanism on the battery cell to secure it and determine its position relative to the fixing mechanism. In related technologies, taking the fixing mechanism corresponding to the sealing nail welding process as an example, the installation and debugging of the fixing mechanism is relatively complicated and time-consuming for each project due to the impact of cutting and pulling.

[0083] Based on the above considerations, and in order to improve installation and commissioning efficiency, this application proposes a fixing mechanism and a battery production line. In use, the fixing mechanism and battery production line can be adapted to battery cells of different sizes by replacing the abutment components of different specifications and dimensions. This improves the installation and commissioning efficiency of the fixing mechanism for battery cells of different sizes and specifications, and enhances the positioning efficiency of battery cells and reduces the risk of pinching or damaging battery cells through the fixing components and abutment components.

[0084] The fixing mechanism and battery production line proposed in this application will be explained and described below with specific embodiments. The fixing mechanism can be used for individual battery cells, the battery production line can be used for battery devices, and the battery devices can be used for electrical appliances. It is understood that the electrical appliances can include, but are not limited to, mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft, etc., where spacecraft include airplanes, rockets, space shuttles, and spacecraft, and vehicles include electric vehicles and hybrid vehicles.

[0085] For ease of explanation, the following embodiments use a vehicle as an example of electrical equipment. Unless there are obvious contradictions, the following embodiments can also be applied to electrical equipment other than vehicles.

[0086] Reference Figure 1 The electrical device 10 includes an electrical controller 11, a motor 12, and a battery device 20. The battery device 20 can be used to power the vehicle, for example, the battery device 20 can be used as the vehicle's operating power source; the electrical controller 11 is used to control the battery device 20 to power the motor 12, for example, to power the vehicle's starting, navigation, and driving.

[0087] It is understandable that the battery device 20 can not only serve as the operating power source for the vehicle, an electrical device 10, but also as the driving power source for the vehicle, thereby completely or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0088] Reference Figure 2 The battery device 20 includes a battery housing 21 and a battery cell assembly 22, which is housed within the battery housing 21. In embodiments of this application, the battery device 20 may include at least one battery cell assembly 22, which provides voltage and capacity. The battery cell assembly 22 may include at least one battery cell 221, and multiple battery cells 221 may be connected in series, parallel, or mixed connections via a busbar, where a mixed connection can be understood to include both series and parallel connections.

[0089] The battery cell assembly 22 can be a battery module, which is formed by arranging and fixing multiple battery cells 221 together to form an independent module; for example, a battery module can be formed by bundling multiple battery cells 221 together with cable ties. In some embodiments, the battery cell assembly 22 can be housed in the battery housing 21 by fixing it in the battery housing 21. Of course, the battery cell assembly 22 may also include only one battery cell 221, and this embodiment is not limited to this.

[0090] In some implementations, refer to Figure 2 The battery housing 21 may include a first housing and a second housing. The first housing and the second housing are fastened together, thereby forming a closed space inside the battery housing 21 to house the aforementioned battery cell assembly 22. Here, "closed" means that the first housing and the second housing cover or close each other; furthermore, the closed position may be sealed or not sealed. It is understood that the first housing and the second housing may each have an opening, thereby forming the aforementioned closed space by fastening together through their respective openings; of course, it is also possible that only one of the first housing and the second housing has an opening, and this embodiment does not limit this. The battery housing 21 may include a top cover, a frame, and a bottom plate, with the top cover and the bottom plate respectively connected to the frame, thereby forming a closed space inside the battery housing 21 to house the aforementioned battery cell 221 or battery cell assembly 22; wherein, the aforementioned first housing may be a top cover (or a bottom plate), and the second housing may be a combination of a frame and a bottom plate (or a frame and a top cover) with an opening.

[0091] In some embodiments, the battery device 20 may be a battery pack, which may include a battery housing 21 and one or more battery cell assemblies 22, the battery cell assemblies 22 being housed within the battery housing 21. In some embodiments, the battery housing 21 may be part of the chassis structure of the vehicle, the electrical device 10; for example, the top cover of the battery housing 21 may be at least part of the vehicle's floor, or the frame of the battery housing 21 may be at least part of the vehicle's crossbeams and longitudinal beams.

[0092] In some embodiments, the battery device 20 may also be an energy storage device, which may include one or at least two battery clusters to increase the voltage and capacity of the energy storage device. A battery cluster may include multiple individual battery cells 221, which can be connected in series via a busbar to increase the voltage of the energy storage device. When the energy storage device includes at least two battery clusters, the at least two battery clusters may be connected in parallel to increase the capacity of the energy storage device. The energy storage device may include a battery housing 21, with a door on at least one side. The energy storage device may be an energy storage container, an energy storage cabinet, etc.

[0093] Reference Figure 3 The aforementioned battery cell 221 includes a positive electrode terminal 227 (also called a terminal post), a negative electrode terminal 227 (another terminal post), a separator, and an electrolyte, etc. The battery cell 221 can be charged and discharged through an electrochemical reaction. The battery cell 221 can be configured as a prismatic battery, cylindrical battery, pouch battery, or strip battery, etc. Furthermore, the battery cell 221 may include a casing 222, a top cover 223, an adapter plate 224, and a bare cell 225; the bare cell 225 can be formed from electrode sheets through subsequent winding, stacking, and other processes. The bare cell 225 is housed within the casing 222 and has two tabs 226 corresponding to the positive and negative electrodes, respectively. The adapter plate 224 connects different bare cells 225 through the tabs 226 and is also connected to the electrode terminals 227 provided on the top cover 223.

[0094] In the battery cell assembly 22, the electrode terminal 227 can be connected to each battery cell 221 in series, parallel or mixed form by connecting to each busbar, wherein the connection between the electrode terminal 227 and the busbar can be achieved by welding process.

[0095] In one embodiment, the battery production line proposed in this application includes a fixing mechanism 300, which is described in [reference needed]. Figure 4 ,in Figure 4A schematic diagram of the installation of the fixing mechanism 300 in this embodiment is shown. Furthermore, the fixing mechanism 300 may include a connecting base 330, which can be understood as the mounting base for other components of the fixing mechanism 300. It may include components such as plates or blocks; for example, the connecting base 330 may be configured as a turntable. Figure 4 The axis of rotation is A, and along the axis of rotation is A. Figure 4 Rotate in the direction P.

[0096] In addition, the battery production line may also include processing equipment, which can be understood as equipment for processing battery cells 221, including welding, inspection, etc. For example, the processing equipment may include welding equipment that can perform welding operations on battery cells 221, such as welding sealing nails, welding top covers, etc. Of course, the processing equipment can also be inspection equipment, such as helium leak detection equipment.

[0097] exist Figure 4 In the accompanying drawings, the X-axis corresponds to the length of the battery cell 221 and the radial direction of the turntable-shaped connecting base 330; the Y-axis corresponds to the thickness of the battery cell 221 and the tangential direction of the rotation direction of the turntable-shaped connecting base 330; and the Z-axis corresponds to the height of the battery cell 221 and the height of the connecting base 330. This embodiment uses a prismatic battery cell 221 as an example; however, unless there is a clear contradiction, the fixing mechanism 300 in the following embodiments can also be used for other types of battery cells 221 besides prismatic batteries.

[0098] Reference Figure 4 as well as Figure 5 ,in Figure 5 A partial structural schematic diagram of the fixing mechanism 300 in this embodiment is shown. In this embodiment, the fixing mechanism 300 includes a side baffle assembly 310, which is used to abut against the side wall of the battery cell 221 to fix the battery cell 221. The side baffle assembly 310 is mounted on the connecting base 330 and includes a fixing member that is fixed relative to the connecting base 330. The fixing mechanism 300 includes a connector and an abutment member 340. The connector includes at least a portion of the fixing member, and the abutment member 340 is detachably connected to the connector. The hardness of the abutment member 340 is less than that of the connector. The abutment member 340 on the fixing member is used to abut against the side wall of the battery cell 221 to fix the battery cell 221.

[0099] The fixing mechanism 300 can be understood as a mechanism for fixing the battery cell 221. The side baffle assembly 310 can be understood as an assembly that abuts against the side of the battery cell 221 to fix it; it can be understood as fixing the battery cell 221 by side clamping, for example, clamping and fixing the battery cell 221 in the X-axis and Y-axis directions as shown in the figure. For example, refer to... Figure 4 The side guard assembly 310 may include a first side guard 313, which indirectly abuts against the battery cell 221 from the side using other components (e.g., indirectly abutting against it using the aforementioned abutting member 340), or directly abuts against the battery cell 221. For example, see [reference to...] Figure 5 The side-block assembly 310 may include a first connecting frame 311, which is fixedly connected to the connecting base 330, for example, by welding or fastener connection. Thus, at least a portion of the first connecting frame 311 can indirectly abut against the battery cell 221 from the side using other components (e.g., indirectly abutting against it using the aforementioned abutment member 340), or directly abut against the side wall of the battery cell 221. It can be understood that the aforementioned fixing component includes the first connecting frame 311, and the aforementioned connecting member includes at least a portion of the first connecting frame 311, to which the aforementioned abutment member 340 is detachably connected.

[0100] In some embodiments, the fixing mechanism 300 may further include a base support assembly 320, which supports the bottom wall of the battery cell 221 and fixes the battery cell 221. The aforementioned connector may also include at least a portion of the base support assembly 320. The base support assembly 320 can be understood as an assembly that supports the bottom of the battery cell 221 in the direction of gravity, meaning that the base support assembly 320 abuts against the bottom of the battery cell 221 in the direction of gravity. For example, see... Figure 6 ,in Figure 6 A schematic diagram of the base support assembly 320 in this embodiment is shown. In this embodiment, the base support assembly 320 may include a base plate 321, which indirectly supports the battery cell 221 on the bottom surface using other components (e.g., indirectly supported by the aforementioned abutment member 340), or directly supports the battery cell 221. The base plate 321 can be independent of the aforementioned connecting base 330 and can be connected using fasteners such as bolts or by welding; of course, a portion of the connecting base 330 can also serve as the base plate 321, and this embodiment does not limit this. The base support assembly 320 allows for easy adjustment of the height of the battery cell 221 by replacing the abutment member 340; furthermore, the abutment member 340 on the base support assembly 320 helps prevent damage to the bottom surface of the battery cell 221 from impacts.

[0101] It is understood that the fixing mechanism 300 may include the side guard assembly 310 and the bottom support assembly 320, or the fixing mechanism 300 may only include the side guard assembly 310. This embodiment does not limit this.

[0102] Furthermore, the connector may include at least a portion of the side baffle assembly 310. For example, the connector may include at least one of the first side baffle 313 and the bottom support plate 321, such as including the first side baffle 313 and the bottom support plate 321. Of course, it may also include only the first side baffle 313, and this embodiment does not limit this.

[0103] The abutment 340 is detachably connected to the connector, for example, it is detachably connected to the first connecting frame 311 described above. This can be understood as the first connecting frame 311 being detachably connected to the abutment 340, for example, through insertion, snap-fit, threaded connection, or other methods. In some embodiments, refer to... Figure 4 , Figure 5 The fixing mechanism 300 also includes a connector 370; taking the connector including the first connecting frame 311 as an example, the abutment 340 can be inserted into the first connecting frame 311 through the connector 370, which can be understood as being inserted into at least a part of the side block assembly 310. The connector 370 can be configured as a rod, a pin, a button-type locking device, etc., so as to conveniently and quickly fix the abutment 340.

[0104] The abutment 340 has a lower hardness than the connector, meaning it is relatively soft. For example, the abutment 340 can be made of rubber blocks, foam, etc., and the connector (at least a part of the first connecting frame 311) can be made of aluminum alloy plate, aluminum plate, steel plate, etc. The abutment 340 is used to abut against the side wall of the battery cell 221, for example, against the side of the battery cell 221 in the X-axis and Y-axis directions in the figure, thereby fixing the battery cell 221 by clamping or other means.

[0105] As described above, the fixing mechanism 300 in this embodiment can be detachably connected to the connecting member via the abutment member 340 during use. This allows the fixing mechanism 300 to replace the abutment member 340 with different sizes, making it suitable for battery cells 221 of different sizes. This improves the installation and debugging efficiency of the fixing mechanism 300 for battery cells 221 of different sizes. For example, if the size of the battery cell 221 is smaller, a thicker abutment member 340 can be used on the side guard assembly 310; if the size of the battery cell 221 is larger, a thinner abutment member 340 can be used on the side guard assembly 310. Furthermore, the hardness of the abutment 340 is less than that of the connector, which helps to reduce the risk of pinching the battery cell 221; the abutment 340 on the fixing member of the side block assembly 310 (such as the first connecting frame 311 mentioned above) abuts against the side wall surface of the battery cell 221 to fix the battery cell 221, thereby the position between the battery cell 221 and the turntable-shaped connecting base 330 can be determined by the fixing member (such as the first connecting frame 311 mentioned above) and the abutment 340, which helps to improve the positioning efficiency of the battery cell 221.

[0106] In some implementations, refer to Figure 5 and Figure 7 ,in Figure 7 An exploded view of a partial structure of the fixing mechanism 300 in this embodiment is shown; the side baffle assembly 310 also includes a second connecting frame 312 and the aforementioned first side baffle 313.

[0107] Reference Figure 8 ,in Figure 8 An exploded view of another partial structure of the fixing mechanism 300 in this embodiment is shown.

[0108] Furthermore, the aforementioned first side baffle 313 is fixedly connected to the second connecting frame 312, for example, by welding or fastener connection. At least a portion of the first connecting frame 311 is disposed opposite to the first side baffle 313 in a first direction, for example, this first direction can be along... Figure 7 The X-axis direction setting, and Figure 7 The left portion of the first connecting bracket 311 in the X-axis direction is positioned opposite to the first side baffle 313. It can be understood that when the connecting base 330 is configured as a turntable and rotates, the first direction X relative to the side baffle assembly 310, for example, the first direction X relative to the first connecting bracket 311, can be understood as the first direction X remaining unchanged relative to the side baffle assembly 310.

[0109] In some implementations, refer to Figure 7The first connecting frame 311 may include a first fixing plate 3111, which is fixedly connected to the connecting base 330, for example by welding or fastener connection. The first fixing plate 3111 is disposed opposite to the first side baffle 313 in the first direction X, so as to abut against the two side walls of the battery cell 221 respectively in the first direction X.

[0110] Furthermore, the second connecting frame 312 is slidably connected to the first connecting frame 311 in the first direction X, so that the first side baffle 313 moves in the first direction X to abut against the side wall of the battery cell 221. For example, the first connecting frame 311 may also include a second fixing plate 3112, which is fixedly connected to the connecting base 330, for example, by welding, fastener connection, or other methods. Furthermore, the first connecting frame 311 may also include a third fixing plate 3113, which is fixedly connected to the connecting base 330, for example, by welding, fastener connection, or other methods. In some embodiments, refer to... Figure 7 The aforementioned first fixing plate 3111, second fixing plate 3112 and third fixing plate 3113 are in Figure 7 The middle part can be enclosed to form a semi-open shape with the opening facing downwards.

[0111] The second connecting frame 312 can be slidably connected to the second fixed plate 3112, for example, through a guide rail structure, a sleeve structure, etc. It is understood that the second connecting frame 312 can be made of sheet metal, for example... Figure 7 The second connecting frame 312 may include a first plate extending along the first direction X and a second plate extending along the second direction Y, thus the second connecting frame 312 is generally L-shaped. Of course, the second connecting frame 312 may also be made of rods, blocks, hollow frames, etc., and this embodiment is not limited in this regard. In some embodiments, in the first direction X, a portion of the second connecting frame 312 can be slidably connected to the second fixing plate 3112 via a slide rail structure; another portion of the second connecting frame 312 can be slidably connected to the hole structure of the third fixing plate 3113 via a guide rod structure in the first direction X, thereby improving the connection stability of the sliding connection.

[0112] It is understood that the aforementioned connector may include a portion of the first connecting frame 311 that is disposed opposite to the first side baffle 313 in the first direction X. For example, the connector may include the aforementioned first fixing plate 3111. The portion of the first connecting frame 311 disposed opposite to the first side baffle 313 in the first direction is detachably connected to an abutment member 340. For example, the first fixing plate 3111 is detachably connected to an abutment member 340.

[0113] In this embodiment, the fixing mechanism 300 can be slidably connected to the first connecting frame 311 in the first direction X via the second connecting frame 312. This allows for convenient and quick adjustment of the distance between the first side baffle 313 on the second connecting frame 312 and the first connecting frame 311 in the first direction X, which is beneficial for picking up and placing the battery cell 221 and for clamping and fixing battery cells 221 of different sizes and specifications in the first direction X. On the other hand, the fixing mechanism 300 can determine the position between the battery cell 221 and the turntable-shaped connecting base 330 by the portion of the first connecting frame 311 that is opposite to the first side baffle 313 in the first direction X (e.g., the first fixing plate 3111) and the corresponding abutment 340, thereby improving the positioning efficiency of the battery cell 221.

[0114] In some embodiments, the connecting member may include the first side baffle 313, which is detachably connected to the abutment member 340. For example, the detachable connection can be achieved by means of insertion, snap-fit, threaded connection, etc. For example, the detachable connection can be achieved by insertion through the plug member 370.

[0115] In this embodiment, since the first connecting frame 311 is fixedly connected to the connecting base 330, the portions of the first side baffle 313 and the first connecting frame 311 that are opposite to the first side baffle 313 in the first direction (e.g., the first fixing plate 3111) can be fitted with abutment members 340 of similar size and hardness. For example, the first side baffle 313 and the first fixing plate 3111 can be fitted with abutment members 340 of the same thickness and hardness, which helps to keep the battery cells 221 of different sizes and specifications in the first direction X relative to the connecting base 330, welding equipment, and other operating equipment unchanged. This helps to reduce the positioning error caused by the deformation of the abutment members 340 (which can be understood as the deformation amplitude of the abutment members 340 corresponding to the first side baffle 313 and the first fixing plate 3111 being similar or equal), thereby reducing the amount of change in the working trajectory of the operating equipment on the battery cells 221. For example, the welding head of the welding equipment can move along the previous moving trajectory to the welding position of the battery cells 221, such as the welding position of the sealing nail.

[0116] In some implementations, refer to Figure 5 and Figure 7 The side guard assembly 310 may further include a first elastic component 315, one end of which is connected to the first connecting bracket 311, for example... Figure 5The right end of the first elastic component 315 in the first direction X is connected to the first connecting frame 311, for example, to the aforementioned third fixing plate 3113. Specifically, the connection can be made by abutment, snap-fit, or insertion. Furthermore, the other end of the first elastic component 315 is connected to the first side baffle 313, for example... Figure 5 The left end of the first elastic component 315 in the X-axis direction is connected to the first side baffle 313, specifically by means of abutment, snap-fit, or insertion. The first elastic component 315 may include at least one first elastic element, which may include a spring, sheet, elastic rubber column, etc.

[0117] In some embodiments, the first fixing plate 3111, the first side baffle 313, and the third fixing plate 3113 are sequentially arranged in the first direction X; the third fixing plate 3113 has a plate-body through-structure, which can be configured as a through hole, a notch, etc.; the second connecting frame 312 passes through the plate-body through-structure and is fixedly connected to the third fixing plate 3113. For example, the second connecting frame 312 may include a guide rod, which passes through the plate-body through-structure and is fixedly connected to the third fixing plate 3113. The guide rod is slidably connected to the plate-body through-structure, thereby improving connection stability.

[0118] Furthermore, the first elastic component 315 is configured to either move the first side baffle 313 closer to the battery cell 221 or move the first side baffle 313 away from the battery cell 221, specifically by moving the first side baffle 313 along the first direction X. (Refer to...) Figure 4 The fixing mechanism 300 further includes a first driving member 350, which may include a cylinder, an electric push rod, etc. The first driving member 350 is drive-connected to the second connecting frame 312, for example, it can directly abut against the second connecting frame 312, or it can be driven through a linkage mechanism, a crank-slider mechanism, etc. The first driving member 350 is configured to perform the action of moving the first side baffle 313 closer to the battery cell 221 or moving the first side baffle 313 away from the battery cell 221. Specifically, this can be achieved by moving the first side baffle 313 along the first direction X. For example, the first elastic component 315 is configured to move the first side baffle 313 closer to the battery cell 221, and the first driving member 350 is configured to move the first side baffle 313 away from the battery cell 221; or, the first elastic component 315 is configured to move the first side baffle 313 away from the battery cell 221, and the first driving member 350 is configured to move the first side baffle 313 closer to the battery cell 221. This embodiment does not limit this.

[0119] In this embodiment, the fixing mechanism 300 can clamp and release the battery cell 221 by means of the force of the first elastic component 315 and the first driving component 350, respectively, through the first side baffle 313 and the corresponding first connecting frame 311 (such as the first fixing plate 3111 mentioned above), thereby improving the efficiency of picking up and putting down the battery cell 221, for example, taking out or putting down the battery cell 221 when the first side baffle 313 and the first fixing plate 3111 are released.

[0120] In some implementations, refer to Figure 5 and Figure 7 The side guard assembly 310 may also include a second side guard 314; the aforementioned connector may include the second side guard 314, and the second side guard 314 is detachably connected to the aforementioned abutment 340.

[0121] Part of the first connecting frame 311 is disposed opposite to the second side baffle 314 in the second direction Y. For example, the second fixing plate 3112 of the first connecting frame 311 and the second side baffle 314 are disposed opposite to each other in the second direction Y. There is an angle between the first direction X and the second direction Y. For example, the first direction X and the second direction Y are perpendicular to each other and form a right angle. Of course, other angles can also be formed between the first direction X and the second direction Y. This embodiment does not limit this.

[0122] Reference Figure 7 The second side baffle 314 is slidably connected to the first connecting frame 311 in the second direction Y. For example, the two ends of the second side baffle 314 in the first direction X are respectively connected to the first fixing plate 3111 and the third fixing plate 3113 in the second direction Y through plates, which helps to improve the connection stability of the sliding connection. The sliding connection in the second direction Y can be achieved by a guide rail structure, a sleeve structure, etc., so that the second side baffle 314 can move in the second direction Y to abut against the side wall of the battery cell 221. The connecting member includes the part of the first connecting frame 311 that is opposite to the second side baffle 314 in the second direction (for example, it may include the second fixing plate 3112). The part of the first connecting frame 311 that is opposite to the second side baffle 314 in the second direction (for example, the second fixing plate 3112) is detachably connected to the abutment member 340.

[0123] As can be seen from the above description, the first fixing plate 3111, the second fixing plate 3112, the first side baffle 313, and the second side baffle 314 can be detachably connected with abutment members 340, so that they can abut against the four sides of the battery cell 221 through the abutment members 340 respectively.

[0124] In this embodiment, the fixing mechanism 300 can be slidably connected to the first connecting frame 311 in the second direction Y via the second side baffle 314, thereby facilitating and quickly adjusting the distance between the second side baffle 314 and the first connecting frame 311 (e.g., the distance between them and the second fixing plate 3112 mentioned above) in the second direction Y. This is beneficial for picking up and placing the battery cell 221, and also for clamping and fixing battery cells 221 of different sizes and specifications in the second direction Y. On the other hand, the fixing mechanism 300 can determine the position between the battery cell 221 and the turntable-shaped connecting base 330 by the portion of the first connecting frame 311 that is opposite to the second side baffle 314 in the second direction Y (e.g., the second fixing plate 3112) and the corresponding abutment 340, thereby improving the positioning efficiency of the battery cell 221.

[0125] Furthermore, since the first connecting frame 311 is fixedly connected to the connecting base 330, the parts of the second side baffle 314 and the first connecting frame 311 that are opposite to the second side baffle 314 in the second direction Y (such as the second fixing plate 3112 mentioned above) can be fitted with abutment parts 340 of similar size and hardness respectively. This helps to keep the battery cells 221 of different sizes and specifications in the second direction Y relative to the connecting base 330, welding equipment and other working equipment unchanged, which helps to reduce the positioning error caused by the deformation of the abutment parts 340 (which can be understood as the deformation amplitude of the abutment parts 340 corresponding to the second side baffle 314 and the second fixing plate 3112 being similar or equal), thereby helping to reduce the amount of change in the working trajectory of the battery cells 221 by the working equipment.

[0126] In some implementations, refer to Figure 5 and Figure 7 The side guard assembly 310 may further include a second elastic component 316, one end of which is connected to the first connecting bracket 311, for example... Figure 5 The lower right end of the first elastic component 315 in the second direction Y is connected to the first connecting frame 311. In some embodiments, the first connecting frame 311 may include a support base 3114, which is fixedly connected to the connecting base 330. Figure 5 The lower right end of the first elastic component 315 in the second direction Y can be connected to the support base 3114, specifically by means of abutment, snap-fit, or plug-in.

[0127] Furthermore, the other end of the second elastic component 316 is connected to the second side baffle 314, for example... Figure 5The first elastic component 315 is connected to the second side baffle 314 at its upper left end in the second direction Y. This connection can be achieved through methods such as abutment, snap-fit, or insertion. In some embodiments, a portion of the first connecting frame 311 (e.g., the aforementioned second fixing plate 3112), the second side baffle 314, and the support base 3114 are sequentially arranged in the second direction Y. The two ends of the second elastic component 316 are respectively connected to the second side baffle 314 and the support base 3114. The second elastic component 316 may include at least one second elastic element, which may include a spring, a sheet spring, or an elastic rubber column.

[0128] On the other hand, the second elastic component 316 is configured to perform one of moving the second side baffle 314 closer to the battery cell 221 or moving the second side baffle 314 away from the battery cell 221, specifically by moving the second side baffle 314 along the second direction Y. (Refer to...) Figure 4 The fixing mechanism 300 further includes a second driving member 360, which may include a cylinder, an electric push rod, etc. The second driving member 360 is drive-connected to the second side baffle 314, for example, it can directly abut against the second side baffle 314, or it can be driven through a linkage mechanism, a crank-slider mechanism, etc. The second driving member 360 is configured to perform the action of moving the second side baffle 314 closer to the battery cell 221 or moving the second side baffle 314 away from the battery cell 221, which can be achieved by moving the second side baffle 314 along the second direction Y. For example, the second elastic component 316 is configured to move the second side baffle 314 closer to the battery cell 221, and the second driving member 360 is configured to move the second side baffle 314 away from the battery cell 221; or, the second elastic component 316 is configured to move the second side baffle 314 away from the battery cell 221, and the second driving member 360 is configured to move the second side baffle 314 closer to the battery cell 221. This embodiment does not limit this.

[0129] In this embodiment, the fixing mechanism 300 can clamp and release the battery cell 221 by means of the force of the second elastic component 316 and the second driving component 360, respectively, through the second side baffle 314 and the corresponding first connecting frame 311 (such as the second fixing plate 3112 mentioned above), thereby improving the efficiency of picking up and putting down the battery cell 221.

[0130] In some implementations, refer to Figure 4The side baffle assembly 310 also includes an adapter plate 317. The connecting base 330 has a seat penetration structure 331, which can be configured as a through hole, notch, etc. One end of the adapter plate 317 is fixedly connected to the second side baffle 314, and the other end of the adapter plate 317 passes through the seat penetration structure 331 and extends to the side of the connecting base 330 facing away from the second side baffle 314. The side of the adapter plate 317 away from the second side baffle 314 is connected to the second driving member 360 for transmission. For example, Figure 4 The upper end of the intermediate connecting plate 317 is fixedly connected to the second side baffle 314, for example, by means of fastener connection, welding or other methods. Figure 4 The lower end of the intermediate plate 317 passes through the seat through structure 331 and extends from the bottom of the connecting base 330, thereby making a transmission connection with the second drive member 360 from below.

[0131] In this embodiment, the adapter plate 317 passes through the side away from the second side baffle 314 (e.g., Figure 4 The lower side of the connecting base 330 is connected to the second driving member 360 for transmission, which helps to keep the second driving member 360 away from the battery cell 221. For example, in the figure, the battery cell 221 is relatively higher and the second driving member 360 is relatively lower, which helps to reduce the risk of the second driving member 360 accidentally damaging the battery cell 221. In addition, the adapter plate 317 is on both sides of the connecting base 330 (e.g., Figure 4 The upper and lower sides of the adapter plate 317 have some structures distributed on them, which helps to improve stability during the power transmission process.

[0132] In some embodiments, the first direction X and the second direction Y are parallel to the rotation plane of the turntable connecting the base 330, for example, parallel to... Figure 4 The XY plane is defined as follows: The first direction X has an angle with the circumferential direction of the turntable, for example, it can be set along the radial direction of the turntable connecting base 330; the second direction Y has an angle with the radial direction of the turntable, for example, it can be set along the circumferential direction of the turntable connecting base 330, which can be understood as parallel to the tangential direction at its location; of course, the first direction X and the circumferential direction of the turntable, and the second direction Y and the radial direction of the turntable, can also have other angles, and this embodiment does not limit this.

[0133] In addition, refer to Figure 9 and Figure 10 ,in Figure 9 A schematic diagram of another partial structure of the fixing mechanism 300 in this embodiment is shown. Figure 10 Showing Figure 9A partial enlarged view at point M; the side guard assembly 310 also includes a guide block 318, which is fixed relative to the second side guard 314. For example, the guide block 318 is fixedly connected to the aforementioned adapter plate 317 and thus fixed relative to the second side guard 314. Specifically, it can be fixed by fastener connection, welding, or other methods; wherein, the guide block 318 can be fixedly connected to the side of the adapter plate 317 away from the second side guard 314 (e.g., the lower side in the direction of gravity).

[0134] The guide block 318 is provided with guide slopes 3181, which are inclined relative to the first direction X and the second direction Y, respectively. This can be understood as being parallel to the XY plane and having angles with the first direction X and the second direction Y, respectively. The driving end of the second driving member 360 is used to move to abut against the guide slopes 3181, for example in... Figure 10 The second drive member 360 moves along the X-axis direction along the dashed arrow in the figure, that is, the drive end of the second drive member 360 can move in the radial direction of the connecting base 330 in the form of a turntable, so as to form a drive component in the second direction Y and drive the second side baffle 314 to move in the second direction Y.

[0135] In this embodiment, when there is an angle between the first direction X and the circumferential direction of the turntable connecting base 330, and an angle between the second direction Y and the radial direction of the turntable, the fixing mechanism 300 provides a guide slope 3181 on the guide block 318, which facilitates the second driving member 360 to drive the second side baffle 314 on the outside of the turntable connecting base 330. This helps to move the driving end of the second driving member 360 outward away from the turntable, thereby reducing the risk of the second driving member 360 accidentally interfering with the rotation of the turntable.

[0136] The housing of the second drive component 360 can be fixedly connected to a third fixing frame, and the drive end of the second drive component 360 can be slidably connected to the third fixing frame along the first direction X. Specifically, the slidable connection can be achieved through a guide rail structure, a sleeve rod structure, etc., which is beneficial for stably supporting the drive end of the second drive component 360.

[0137] In some implementations, refer to Figure 10 The second driving member 360 has a rotating body 361 at its driving end. The rotating body 361 may include a wheel, a ball, etc. The rotating body 361 is used to move to abut against the guide slope 3181, which helps to reduce the wear of the contact surface through rolling friction and improve the service life.

[0138] In some implementations, refer to Figure 4 When the aforementioned connecting base 330 can be configured as a turntable, the connecting base 330 can... Figure 4 The axis A in the middle is taken as the center axis of rotation and along Figure 4 The direction P of the connection base 330 is rotated. Furthermore, the fixing mechanism 300 includes at least two sets of side-stop assemblies 310; the side-stop assemblies 310 are spaced apart from the connection base 330 in the rotation direction P of the connection base 330. For example, in... Figure 4 In this configuration, a set of side baffle assemblies 310 can be installed on the side of each seat through structure 331. The guide ramp 3181 of the aforementioned guide block 318 (which can be fixedly connected to the adapter plate 317 and the second side baffle 314) is used to rotate with the connecting base 330 until it is abutted by the driving end of the second driving member 360. For example, Figure 4 The device can be configured with six sets of side guard assemblies 310, which facilitates the simultaneous fixing of six battery cells 221; correspondingly, the number of second drive members 360 included in the fixing mechanism 300 can be less than the number of sets of side guard assemblies 310, for example, the fixing mechanism 300 can include only one second drive member 360; wherein, with Figure 4 For example, each side guard assembly 310 can rotate to Figure 4 In the lower left position, the guide slope 3181 of the guide block 318 (which can be fixedly connected to the adapter plate 317 and the second side baffle 314) can be driven by the drive end of the second drive member 360, thereby causing the second side baffle 314 to loosen (or clamp) the battery cell 221.

[0139] In this embodiment, the second side baffle 314 of each set of side baffle assemblies 310 can move with the rotation of the connecting base 330 to be driven by the second drive member 360, thereby reducing the number of second drive members 360 required and thus reducing the overall cost of the fixing mechanism 300.

[0140] Similarly, in some implementations, for example Figure 4 The device can be configured with six sets of side baffle assemblies 310, facilitating the simultaneous fixing of six battery cells 221. Correspondingly, the number of first driving members 350 included in the fixing mechanism 300 can be less than the number of sets of side baffle assemblies 310; for example, the fixing mechanism 300 can include only one first driving member 350. The first side baffle 313 is used to rotate with the connecting base 330 until it is abutted by the driving end of the first driving member 350. For example, using... Figure 4 For example, each side guard assembly 310 can rotate to Figure 4 In the case of the lower left position, the second connecting bracket 312 fixedly connected to the first side baffle 313 can be driven by the driving end of the first driving member 350, thereby causing the first side baffle 313 to loosen (or clamp) the battery cell 221.

[0141] In this embodiment, the first side baffle 313 of each group of side baffle assemblies 310 can move with the rotation of the connecting base 330 to be driven by the first driving member 350, thereby reducing the number of first driving members 350 required and thus reducing the overall cost of the fixing mechanism.

[0142] Regarding the mounting and fixing structure of the aforementioned abutment member 340, in some embodiments, refer to Figure 11 , Figure 12 ,in Figure 11 An exploded view of another part of the fixing mechanism 300 in this embodiment (specifically, at the mounting position of the abutment member 340) is shown. Figure 12 A schematic diagram of the installation of the abutment member 340 in this embodiment is shown; the fixing mechanism 300 includes a socket structure 301, which is disposed on the connector; wherein, the socket structure 301 can be understood as a hole-like structure for insertion. It should be noted that the following embodiment uses the second fixing plate 3112 as an example to illustrate the connector; it is understood that, in the absence of obvious contradictions, the connector may also include a first fixing plate 3111, a first side baffle 313, a second side baffle 314, and a bottom support plate 321. For example, the following structure can be applied to the first fixing plate 3111, the first side baffle 313, and the second side baffle 314.

[0143] Correspondingly, the abutment member 340 is provided with an insertion through structure 341, which may include through holes, notches, etc., for example Figure 11 , Figure 12 The through-hole structure 341 is configured as a through hole. The through-hole structure 341 is positioned opposite to the insertion hole structure 301, for example, opposite to it in the Y-axis direction shown in the figure. The fixing mechanism 300 also includes a connector 370, the first end of which (e.g.) Figure 11 upper left end Figure 12 The upper end of the connector 370 passes through the insertion through-structure 341 and is detachably inserted into the socket structure 301. The connector 370 can be configured as a rod, pin, button-type locking device, etc.

[0144] The second end of connector 370 (e.g.) Figure 11 The lower right end Figure 12 The lower end of the component is provided with a first abutting structure 371, which can be configured as an annular step, a protrusion, a protruding rod, etc.; wherein, the first abutting structure 371 abuts against the side of the abutting member 340 away from the connecting member (the connecting member is the second fixing plate 3112 as an example), for example, the first abutting structure 371 abuts against the side of the abutting member 340 away from the connecting member (the connecting member is the second fixing plate 3112 as an example). Figure 12 The lower side of the middle abutment 340 abuts against the insertion, thereby clamping and fixing the abutment 340 by combining the detachable insertion of the insertion member 370 and the insertion hole structure 301.

[0145] In this embodiment, the plug-in 370 can be detachably plugged into the plug hole structure 301 on the connector (taking the second fixing plate 3112 as an example), and the first abutting structure 371 abuts against the abutting member 340, thereby conveniently and quickly fixing the abutting member 340, which is beneficial to improving the installation efficiency of the abutting member 340 and the installation and debugging efficiency of the fixing mechanism 300.

[0146] In some implementations, refer to Figure 12 Along the direction from the socket structure 301 to the first abutment structure 371, for example along Figure 12 In the downward direction, the insertion and penetration structure 341 of the abutment member 340 includes a first through section 3411 and a second through section 3412 that are connected, the second through section 3412 being wider than the first through section 3411; for example, combined with Figure 11 The first through section 3411 and the second through section 3412 can each be configured as through holes, and the diameter of the second through section 3412 is larger than the diameter of the first through section 3411. Of course, the first through section 3411 and the second through section 3412 can also be configured as grooves, notches, etc., and this embodiment does not limit them.

[0147] Where the second through section 3412 is wider than the first through section 3411, a first step structure 3413 is formed at the connection between the first through section 3411 and the second through section 3412, and the first abutting structure 371 abuts against the first step structure 3413, thereby facilitating the abutting of the first abutting structure 371 against the abutting member 340.

[0148] In some implementations, refer to Figure 11 and Figure 12 The insertion structure 301 includes a threaded mounting hole 3011 and a threaded sleeve 3014. The threaded mounting hole 3011 is located on the connector (taking the second fixing plate 3112 as an example), which can be understood as the connector having the threaded mounting hole 3011 machined on it. The threaded sleeve 3014 can be understood as a sleeve-like structure with threads, for example, the threaded sleeve 3014 has external threads; the threaded sleeve 3014 is located inside the threaded mounting hole 3011, and the threaded sleeve 3014 is threadedly connected to the threaded mounting hole 3011 through the external threads, that is, the insertion depth of the threaded sleeve 3014 can be adjusted by screwing the threads together. The first end of the aforementioned insertion member 370 (e.g., Figure 12The upper end of the connector 370 extends into the threaded sleeve 3014 and is detachably inserted into the threaded sleeve 3014. For example, the connector 370 may have a protrusion, and the inner side of the threaded sleeve 3014 may have a recess, thereby achieving positioning after insertion through the cooperation of the protrusion and the recess. For example, if the connector 370 is set as a button-type locking device, the connector 370 can be fixed by fitting into the recess on the inner side of the threaded sleeve 3014 through the outwardly protruding ball, and the ball can be released by pressing the button to retract the ball.

[0149] In this embodiment, the threaded sleeve 3014 is threadedly connected to the mounting threaded hole 3011, which facilitates the replacement of the threaded sleeve 3014. In addition, when the insertion position of the threaded sleeve 3014 and the connector 370 is relatively fixed, the fixing mechanism 300 can adjust the tightness of the connection between the connector 370 and the abutment 340 by adjusting the threaded connection position of the threaded sleeve 3014 (relative to the mounting threaded hole 3011 of the connector). This helps to reduce the risk of the connector 370 accidentally falling off due to excessive tightness, which can be understood as helping to prevent the abutment 340 from breaking off the connector 370.

[0150] In some implementations, refer to Figure 11 , Figure 12 The inlet side of the mounting threaded hole 3011 is provided with a first enlarged hole 3012, the diameter of the first enlarged hole 3012 is larger than the diameter of the mounting threaded hole 3011, and the connection between the first enlarged hole 3012 and the mounting threaded hole 3011 forms a second step structure 3013; the outer side of the threaded sleeve 3014 is provided with a second abutting structure 3015, which can be configured as an annular step, a protrusion, a protruding rod, etc. The second abutting structure 3015 abuts against the second step structure 3013, thereby helping to prevent the threaded sleeve 3014 from being embedded too deeply relative to the mounting threaded hole 3011.

[0151] In some implementations, refer to Figure 11 and Figure 13 ,in Figure 13 A perspective view of the abutment member 340 in this embodiment is shown. One of the abutment member 340 and the connector is provided with a slot structure 342, which can be understood as a groove-shaped structure for insertion. In addition, at least a portion of the other of the abutment member 340 and the connector is inserted into the slot structure 342. For example, the abutment member 340 may be provided with a slot structure 342, and at least a portion of the connector (taking the second fixing plate 3112 as an example) may be inserted into the slot structure 342; of course, the connector may also be provided with a slot structure 342, and at least a portion of the abutment member 340 may be inserted into the slot structure 342.

[0152] In this embodiment, the abutment 340 and the connector are inserted into each other through the slot structure 342, which helps to increase the contact area between the abutment 340 and the connector. For example, the contact area is increased by the slot wall surface of the slot structure, which helps to improve the connection stability between the abutment 340 and the connector.

[0153] In some implementations, refer to Figure 11 and Figure 12 The slot wall of the slot structure 342 and the outer wall of the connector are provided with a first connecting groove 302. The first connecting groove 302 extends to the insertion port of the slot structure 342, for example, extending along the Z-axis direction in the figure. For example, the outer wall of the connector (taking the second fixing plate 3112 as an example) can be provided with the first connecting groove 302; of course, the slot wall of the slot structure 342 can also be provided with the first connecting groove 302. This embodiment does not limit this.

[0154] In addition, refer to Figure 12 and Figure 13 The slot wall of the slot structure 342 and the outer wall of the connector are provided with a protrusion 3421. For example, the slot wall of the slot structure 342 can be provided with a protrusion 3421; of course, the outer wall of the connector can also be provided with a protrusion 3421. This embodiment does not limit this.

[0155] The protrusion 3421 is embedded in the first connecting groove 302, which can be understood as the protrusion 3421 being inserted into the first connecting groove 302, for example, along... Figure 12 It is inserted into the first connecting slot 302 along the Y-axis direction. (Refer to...) Figure 13 On the side of the first connecting groove 302 in the extending direction (e.g., the Z-axis direction), the protrusion 3421 abuts against the side wall of the first connecting groove 302, for example, in the X-axis direction shown in the figure.

[0156] In this embodiment, the protrusion 3421 is embedded in the first connecting groove 302. The protrusion 3421 abuts against the side wall of the first connecting groove 302 on the side of the extending direction of the first connecting groove 302. This helps to further increase the contact area between the abutting member 340 and the connecting member through the protrusion 3421 and the first connecting groove 302, which helps to further improve the connection stability between the abutting member 340 and the connecting member.

[0157] In some implementations, refer to Figure 12 and Figure 13The slot wall of the slot structure 342 or the outer wall of the connector has a clearance groove 3422 on the side of the protrusion 3421; it can be understood that the clearance groove 3422 is provided on the component with the protrusion 3421, for example, the slot wall of the slot structure 342 in the figure is provided with both the protrusion 3421 and the clearance groove 3422; wherein, the clearance groove 3422 extends to the insertion port of the slot structure 342, for example along Figure 13 It extends downward along the Z-axis to the socket of the slot structure 342.

[0158] In this embodiment, refer to Figure 12 When the protrusion 3421 and the first connecting groove 302 are engaged, the clearance groove 3422 on the side of the protrusion 3421 helps to avoid the solid part on the side of the protrusion 3421 from interfering with the assembly of the first connecting groove 302, which helps to improve the assembly efficiency of the protrusion 3421 and the first connecting groove 302, thereby improving the assembly efficiency of the abutment 340 and the connector.

[0159] In some implementations, refer to Figure 12 and Figure 13 The slot wall of the slot structure 342 is provided with a second connecting groove 3423, which extends to the insertion port of the slot structure 342, for example along... Figure 13 It extends downwards along the Z-axis to the socket of slot structure 342. (Refer to...) Figure 12 The second connecting groove 3423 is located on the side of the connector (taking the second fixing plate 3112 as an example) opposite to the insertion through structure 341, for example, located on... Figure 12 On the upper side of the second fixing plate 3112, the threaded sleeve 3014 is located away from one end of the insertion through structure 341 (e.g. Figure 12 The upper end of the connector (taking the second fixing plate 3112 as an example) extends out and into the second connecting groove 3423.

[0160] In this embodiment, the second connecting groove 3423 can provide room for movement of the threaded sleeve 3014, for example, allowing the threaded sleeve 3014 to... Figure 12 The upward movement of the threaded sleeve 3014 improves the position adjustment efficiency of the threaded sleeve 3014 relative to the connector (taking the second fixed plate 3112 as an example); furthermore, the threaded sleeve 3014 can abut against the groove wall of the second connecting groove 3423, for example in... Figure 12 The contact is made in the X-axis direction, which helps to limit the movement between the connector (taking the second fixing plate 3112 as an example) and the contact 340, thereby further improving the connection stability between the connector and the contact 340.

[0161] Reference Figures 4 to 13In one embodiment, the battery production line includes operating equipment and a fixing mechanism 300. The fixing mechanism 300 includes a side baffle assembly 310, a bottom support assembly 320, and a connecting base 330, wherein the connecting base 330 is configured as a turntable. The side baffle assembly 310 is used to abut against the side wall of the battery cell 221 to fix the battery cell 221, and the bottom support assembly 320 is used to support the bottom wall of the battery cell 221 to fix the battery cell 221. The side baffle assembly 310 is mounted on the connecting base 330 and includes a fixing member that is fixed relative to the connecting base 330. The fixing mechanism 300 includes a connector and an abutment 340, which are disposed on the corresponding side baffle assembly 310 and bottom support assembly 320. The connector includes at least a portion of the fixing member, and the abutment 340 is detachably connected to the connector. The hardness of the abutment 340 is less than that of the connector, and the abutment 340 on the fixing member is used to abut against the side wall of the battery cell 221 to fix the battery cell 221. The base support assembly 320 includes a base support plate 321, and the connector includes the base support plate 321. The base support plate 321 is detachably connected to an abutment member 340. The fixing mechanism 300 includes a socket structure 301, which is disposed on the connector. The abutment member 340 is provided with a through insertion structure 341, which is positioned opposite to the socket structure 301. The fixing mechanism 300 also includes a connector 370, the first end of which passes through the through insertion structure 341 and is detachably connected to the socket structure 301. The second end of the connector 370 is provided with a first abutment structure 371, which abuts against the side of the abutment member 340 away from the connector. The side baffle assembly 310 includes a first connecting frame 311, a second connecting frame 312, and a first side baffle 313. The fixing component includes the first connecting frame 311, which is fixedly connected to the connecting base 330. The connecting member includes the first side baffle 313, which is detachably connected to an abutment member 340. The first side baffle 313 is fixedly connected to the second connecting frame 312, and at least a portion of the first connecting frame 311 is disposed opposite to the first side baffle 313 in a first direction. The second connecting frame 312 is slidably connected to the first connecting frame 311 in a first direction, so that the first side baffle 313 moves in the first direction to abut against the side wall of the battery cell 221. The connecting member includes the portion of the first connecting frame 311 disposed opposite to the first side baffle 313 in a first direction, which is detachably connected to the abutment member 340.The side guard assembly 310 also includes a first elastic component 315, one end of which is connected to the first connecting frame 311, and the other end of which is connected to the first side baffle 313. The first elastic component 315 is configured to move the first side baffle 313 closer to the battery cell 221 or move the first side baffle 313 away from the battery cell 221. The fixing mechanism 300 also includes a first driving member 350, which is drivenly connected to the second connecting frame 312. The first driving member 350 is configured to move the first side baffle 313 closer to the battery cell 221 or move the first side baffle 313 away from the battery cell 221. The side baffle assembly 310 also includes a second side baffle 314, and the connector includes the second side baffle 314. The second side baffle 314 is detachably connected to the abutment member 340. A portion of the first connecting frame 311 is disposed opposite to the second side baffle 314 in a second direction, and there is an angle between the first direction and the second direction. The second side baffle 314 and the first connecting frame 311 are slidably connected in the second direction to move in the second direction to abut the side wall of the battery cell 221. The connector includes a portion of the first connecting frame 311 disposed opposite to the second side baffle 314 in the second direction, and the portion of the first connecting frame 311 disposed opposite to the second side baffle 314 in the second direction is detachably connected to the abutment member 340. The first connecting frame 311 includes a first fixing plate 3111 and a second fixing plate 3112. The first fixing plate 3111 and the second fixing plate 3112 are fixedly connected to the connecting base 330, and the second connecting frame 312 is slidably connected to the second fixing plate 3112. The connecting member includes the first fixing plate 3111 and the second fixing plate 3112. The first fixing plate 3111 and the second fixing plate 3112 are detachably connected to the abutment member 340. The first fixing plate 3111 is arranged opposite to the first side baffle 313 in the first direction, so as to abut against the two side walls of the battery cell 221 in the first direction. The second fixing plate 3112 is arranged opposite to the second side baffle 314 in the second direction, so as to abut against the two side walls of the battery cell 221 in the second direction. The first connecting frame 311 also includes a third fixing plate 3113. The first fixing plate 3111, the first side baffle 313 and the third fixing plate 3113 are arranged sequentially in the first direction. The third fixing plate 3113 is provided with a plate body through structure. The second connecting frame 312 passes through the plate body through structure and is fixedly connected to the third fixing plate 3113.The side baffle assembly 310 also includes a second elastic component 316, one end of which is connected to the first connecting frame 311, and the other end of which is connected to the second side baffle 314. The second elastic component 316 is configured to move the second side baffle 314 closer to the battery cell 221 or move the second side baffle 314 away from the battery cell 221. The fixing mechanism 300 also includes a second driving member 360, which is throttlely connected to the second side baffle 314. The second driving member 360 is configured to move the second side baffle 314 closer to the battery cell 221 or move the second side baffle 314 away from the battery cell 221. The first connecting frame 311 includes a support base 3114, which is fixedly connected to the connecting base 330. Part of the first connecting frame 311, the second side baffle 314, and the support base 3114 are arranged sequentially in the second direction. The two ends of the second elastic component 316 are respectively connected to the second side baffle 314 and the support base 3114. The side baffle component 310 also includes an adapter plate 317. The connecting base 330 is provided with a seat body through structure 331. One end of the adapter plate 317 is fixedly connected to the second side baffle 314, and the other end of the adapter plate 317 passes through the seat body through structure 331 and extends to the side of the connecting base 330 away from the second side baffle 314. The side of the adapter plate 317 away from the second side baffle 314 is connected to the second driving component 360 for transmission. The connecting base 330 is configured as a turntable, with the first direction and the second direction being parallel to the rotation plane of the turntable. The first direction has an angle with the circumferential direction of the turntable, and the second direction has an angle with the radial direction of the turntable. The side baffle assembly 310 also includes a guide block 318, which is fixed relative to the second side baffle 314. The guide block 318 is provided with a guide slope 3181, which is inclined relative to the first direction and the second direction, respectively. The driving end of the second driving member 360 is used to move to abut against the guide slope 3181 to form a driving component in the second direction and drive the second side baffle 314 to move along the second direction. The connecting base 330 is used to rotate relative to the second driving member 360. The fixing mechanism 300 includes at least two sets of side baffle assemblies 310. In the rotation direction of the connecting base 330, the side baffle assemblies 310 are spaced apart from the connecting base 330. The guide slope 3181 is used to rotate with the connecting base 330 until it is abutted by the driving end of the second driving member 360. The first side baffle 313 is used to rotate with the connecting base 330 until it is abutted by the driving end of the first driving member 350. The driving end of the second driving member 360 is provided with a rotating body 361, which is used to move to abut the guide slope 3181.Along the direction from the insertion hole structure 301 to the first abutment structure 371, the insertion through structure 341 includes a first through section 3411 and a second through section 3412 that are connected. The second through section 3412 is wider than the first through section 3411. A first step structure 3413 is formed at the connection between the first through section 3411 and the second through section 3412. The first abutment structure 371 abuts against the first step structure 3413. The insertion hole structure 301 includes a mounting threaded hole 3011 and a threaded sleeve 3014. The mounting threaded hole 3011 is provided in the connector. The threaded sleeve 3014 has an external thread and is provided in the mounting threaded hole 3011. The threaded sleeve 3014 is threadedly connected to the mounting threaded hole 3011 through the external thread. The first end of the connector 370 extends into the threaded sleeve 3014 and is detachably inserted into the threaded sleeve 3014. The inlet side of the mounting threaded hole 3011 is provided with a first enlarged hole 3012, the diameter of which is larger than that of the mounting threaded hole 3011. The connection between the first enlarged hole 3012 and the mounting threaded hole 3011 forms a second stepped structure 3013. The outer side of the threaded sleeve 3014 is provided with a second abutting structure 3015, which abuts against the second stepped structure 3013. The abutting member 340 is provided with a slot structure 342, and at least a portion of the connector is inserted into the slot structure 342. The outer wall of the connector is provided with a first connecting groove 302, which extends to the insertion port of the slot structure 342. The groove wall of the slot structure 342 is provided with a protrusion 3421, which is embedded in the first connecting groove 302. On the side of the extending direction of the first connecting groove 302, the protrusion 3421 abuts against the side wall of the first connecting groove 302. The slot wall of the slot structure 342 has a clearance groove 3422 on the side of the protrusion 3421, and the clearance groove 3422 extends to the insertion port of the slot structure 342. The slot wall of the slot structure 342 has a second connecting groove 3423, which extends to the insertion port of the slot structure 342. The second connecting groove 3423 is located on the side of the connector facing away from the insertion through structure 341. The end of the threaded sleeve 3014 away from the insertion through structure 341 extends out of the connector and into the second connecting groove 3423.

[0162] It is understood that since the battery production line adopts all the technical solutions of all embodiments of the above-mentioned fixing mechanism, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be elaborated here.

[0163] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A fixing mechanism, characterized in that, The fixing mechanism includes a side baffle assembly and a connecting base, wherein the connecting base is configured as a turntable; the side baffle assembly is used to abut against the side wall of the battery cell to fix the battery cell, the side baffle assembly is mounted on the connecting base, and the side baffle assembly includes a fixing member that is fixed relative to the connecting base; The fixing mechanism includes a connector and an abutment. The connector includes at least a portion of the fixing member. The abutment is detachably connected to the connector. The hardness of the abutment is less than that of the connector. The abutment on the fixing member is used to abut against the side wall of the battery cell to fix the battery cell.

2. The fixing mechanism as described in claim 1, characterized in that, The side baffle assembly includes a first connecting frame, a second connecting frame, and a first side baffle, wherein the first connecting frame is fixedly connected to the connecting base; The first side baffle is fixedly connected to the second connecting frame, and at least a portion of the first connecting frame is disposed opposite to the first side baffle in a first direction; the second connecting frame is slidably connected to the first connecting frame in the first direction, so that the first side baffle moves in the first direction to abut against the side wall of the battery cell; The fixing component includes the first connecting frame, and the connecting member includes a portion of the first connecting frame that is disposed opposite to the first side baffle in the first direction. The portion of the first connecting frame that is disposed opposite to the first side baffle in the first direction is detachably connected to the abutment member.

3. The fixing mechanism as described in claim 2, characterized in that, The connector also includes the first side baffle, which is detachably connected to the abutment.

4. The fixing mechanism as described in claim 2 or 3, characterized in that, The side baffle assembly further includes a second side baffle, and a portion of the first connecting bracket is disposed opposite to the second side baffle in a second direction, with an angle between the first direction and the second direction. The second side baffle is slidably connected to the first connecting frame in the second direction, so as to move in the second direction to abut against the side wall of the battery cell; The connector includes a portion of the first connecting frame that is disposed opposite to the second side baffle in the second direction, and the abutment is detachably connected to the portion of the first connecting frame disposed opposite to the second side baffle in the second direction.

5. The fixing mechanism as described in claim 4, characterized in that, The connector also includes a second side baffle, which is detachably connected to the abutment.

6. The fixing mechanism as described in claim 4, characterized in that, The side baffle assembly further includes a first elastic component, one end of which is connected to the first connecting frame, and the other end of which is connected to the first side baffle. The first elastic component is configured to move the first side baffle closer to the battery cell and move the first side baffle away from the battery cell. The fixing mechanism further includes a first driving member, which is kinetically connected to the second connecting frame. The first driving member is configured to move the first side baffle closer to the battery cell and move the first side baffle away from the battery cell; and / or... The side baffle assembly further includes a second elastic component, one end of which is connected to the first connecting frame, and the other end of which is connected to the second side baffle. The second elastic component is configured to move the second side baffle closer to the battery cell and move the second side baffle away from the battery cell. The fixing mechanism further includes a second driving member, which is throttledly connected to the second side baffle. The second driving member is configured to move the second side baffle closer to the battery cell and move the second side baffle away from the battery cell.

7. The fixing mechanism as described in claim 6, characterized in that, The side baffle assembly also includes an adapter plate, and the connecting base has a seat through structure; one end of the adapter plate is fixedly connected to the second side baffle, and the other end of the adapter plate passes through the seat through structure and extends to the side of the connecting base facing away from the second side baffle. The side of the adapter plate away from the second side baffle is connected to the second driving member for transmission.

8. The fixing mechanism as described in claim 6, characterized in that, The first direction and the second direction are respectively parallel to the rotation plane of the turntable. The first direction forms an angle with the circumferential direction of the turntable, and the second direction forms an angle with the radial direction of the turntable. The side baffle assembly further includes a guide block, which is fixed relative to the second side baffle. The guide block is provided with a guide slope, which is inclined relative to the first direction and the second direction, respectively. The driving end of the second driving member is used to move to abut against the guide slope to form a driving component in the second direction and drive the second side baffle to move along the second direction; and / or, The fixing mechanism includes at least two sets of side baffle assemblies, which are spaced apart from each other on the connecting base in the rotation direction of the connecting base; the first side baffle is used to rotate with the connecting base to be abutted by the driving end of the first driving member, and / or the guide ramp is used to rotate with the connecting base to be abutted by the driving end of the second driving member; and / or, The fixing mechanism further includes a base support assembly for supporting the bottom wall of the battery cell and fixing the battery cell; the connector includes at least a portion of the base support assembly, and the base support assembly is detachably connected to the abutment member.

9. The fixing mechanism as described in any one of claims 1 to 3, characterized in that, The fixing mechanism includes a socket structure, which is disposed on the connector; the abutting member is provided with a through insertion structure, which is positioned opposite to the socket structure. The fixing mechanism further includes a plug-in member, the first end of which passes through the plug-in through structure and is detachably plugged into the plug hole structure; the second end of the plug-in member is provided with a first abutting structure, which abuts against the side of the abutting member away from the connector.

10. The fixing mechanism as described in claim 9, characterized in that, The insertion hole structure includes a mounting threaded hole and a threaded sleeve. The mounting threaded hole is located in the connector. The threaded sleeve has an external thread and is located inside the mounting threaded hole. The threaded sleeve is threadedly connected to the mounting threaded hole through the external thread. The first end of the connector extends into the threaded sleeve and is detachably inserted into the threaded sleeve.

11. The fixing mechanism as described in any one of claims 1 to 3, characterized in that, One of the abutting member and the connecting member is provided with a slot structure, and at least a portion of the other of the abutting member and the connecting member is inserted into the slot structure.

12. The fixing mechanism as described in claim 11, characterized in that, One of the slot wall of the slot structure and the outer wall of the connector is provided with a first connecting groove, the first connecting groove extending to the insertion port of the slot structure; the other of the slot wall of the slot structure and the outer wall of the connector is provided with a protrusion, the protrusion being embedded in the first connecting groove; on the side of the extending direction of the first connecting groove, the protrusion abuts against the side wall of the first connecting groove.

13. The fixing mechanism as described in claim 12, characterized in that, The slot wall of the slot structure or the outer wall of the connector is provided with a clearance groove on the side of the protrusion, and the clearance groove extends to the insertion port of the slot structure.

14. The fixing mechanism as described in claim 10, characterized in that, One of the abutting member and the connecting member is provided with a slot structure, and at least a portion of the other abutting member and the connecting member is inserted into the slot structure; The slot structure has a second connecting groove on its groove wall, which extends to the insertion port of the slot structure. The second connecting groove is located on the side of the connector facing away from the insertion through structure. The end of the threaded sleeve away from the insertion through structure extends out of the connector and into the second connecting groove.

15. A battery production line, characterized in that, The battery production line includes a fixed mechanism as described in any one of claims 1 to 14.

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