Sleeve mechanism and battery assembly system

Abstract

This invention relates to a strapping mechanism and a battery assembly system. The strapping mechanism designs a positioning structure consisting of at least a reference, a first positioning element, and a second positioning element, with the first and second positioning elements positioned opposite each other. As the actuator drives the first and second positioning elements to move away from each other, the first and second sides are subjected to force and elastically deform, causing the fastening strap to expand internally. After expansion, a lifting device drives the entire positioning structure to rise, allowing the expanded fastening strap to be fitted onto the outside of the battery cell module. Because the fastening strap always uses the reference as its positioning base when expanding, it effectively avoids large deformation on the unforced side of the fastening strap, which could easily scratch the blue film of the battery cell, thus achieving precise and stable strapping and improving battery assembly yield and efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a sleeve mechanism and a battery assembly system. Background Technology

[0002] With the increasing scarcity of traditional energy sources, the automotive industry's demand for new energy is also growing. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important part of the sustainable development of the automotive industry. For electric vehicles, battery technology is a crucial factor in their development.

[0003] To adapt to the battery production cycle, the traditional steel strip mechanism typically unfolds the steel strip; then, it lifts the unfolded steel strip and fits it onto the cell module to achieve automated steel strip loading. However, due to structural design flaws in the traditional steel strip mechanism, some deformation occurs when the steel strip is unfolded, which can easily scratch the blue film of the cell during the ejection process, seriously affecting the battery assembly yield and efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a sleeve mechanism and battery assembly system to achieve precise and stable sleeve application, thereby improving battery assembly yield and efficiency.

[0005] In a first aspect, this application provides a strapping mechanism, comprising: a positioning structure including a reference and a first positioning member and a second positioning member disposed opposite to each other, the first positioning member and the second positioning member being respectively used for positioning and engaging with a first side and a second side opposite to each other on the fastening strap, the reference being used for positioning and engaging with a third side on the fastening strap connected between the first side and the second side; a driver being used to drive the first positioning member and the second positioning member to move away from each other or toward each other; and a lifter being used to drive the positioning structure to move relative to the battery cell module so that the spread fastening strap is fitted over the battery cell module.

[0006] In the technical solution of this application embodiment, the positioning structure is designed with at least a reference, a first positioning member, and a second positioning member, with the first positioning member and the second positioning member being positioned opposite each other. Thus, during battery assembly, the third side of the fastening strap is positioned on the reference as the reference end for positioning the fastening strap; then, the first and second sides of the fastening strap, which are positioned opposite each other, are respectively positioned on the first and second positioning members, ensuring that at least three sides of the fastening strap are effectively positioned, guaranteeing accurate positioning of the fastening strap. As the driver drives the first and second positioning members to move away from each other, the first and second sides are subjected to force and move away from each other, undergoing elastic deformation, causing the fastening strap to open internally. After opening, the positioning structure is raised as a whole by a lifter, so that the opened fastening strap is fitted onto the outside of the battery cell module. Since the fastening strap always uses the reference as the positioning basis when opening, it effectively avoids large deformation on the unforced side of the fastening strap, which could easily scratch the blue film of the battery cell, thereby achieving accurate and stable fitting and improving battery assembly yield and efficiency.

[0007] In some embodiments, there are at least two drivers, which are at least a first driver and a second driver. The first driver and the second driver drive the first positioning member and the second positioning member respectively to move away from or toward each other. This makes the movement of the first positioning member and the second positioning member smooth, thereby ensuring that the opening action of the fastening strap is more stable.

[0008] In some embodiments, the positioning structure further includes a first beam equipped with the first driver and a second beam equipped with the second driver. The first beam and the second beam can be raised and lowered under the drive of the lifting device, and at least one of them is provided with the reference. In this way, when the positioning structure needs to be raised and lowered, only the first beam and the second beam need to be raised and lowered, making the operation more convenient.

[0009] In some embodiments, the belt mechanism further includes a first adapter and a first power unit disposed on the first adapter. At least one output shaft of the lifting device is connected to the first adapter. The first power unit is used to drive the first beam to rise and fall. Thus, a two-stage drive is adopted to reduce the drive stroke of a single power device, thereby effectively distributing the load on a single power device.

[0010] In some embodiments, the belt mechanism further includes a second adapter and a second power unit disposed on the second adapter. At least one output shaft of the lifting device is connected to the second adapter. The second power unit is used to drive the second beam to rise and fall. Similarly, a two-stage drive lifting mechanism is used to reduce the drive stroke of a single power device.

[0011] In some embodiments, the strapping mechanism further includes a first base, on which the first beam is slidably disposed and movable in the height direction of the first base, so that the extended fastening strap is stably fitted around the battery cell module.

[0012] In some embodiments, a first guide rail extends along its own height direction on the first base, and a first slider that cooperates with the first guide rail is provided on the first beam. This design makes the movement of the first beam on the first base more stable and smooth, ensuring that the fastening strap is more accurately fitted onto the outside of the battery cell module.

[0013] In some embodiments, the strapping mechanism further includes a second base opposite to the first base, a second guide rail extending along its height direction on the second base, and a second slider cooperating with the second guide rail on the second beam. This design makes the movement of the second beam on the second base more stable and smooth, ensuring that the fastening strap is more accurately fitted onto the outside of the battery cell module.

[0014] In some embodiments, the first positioning member and / or the second positioning member includes a first component and a first base that cooperates with the driver. The first component is disposed on the first base and forms a first positioning groove between it and the first base. The groove structure is used for positioning, making the positioning operation of the sleeve more convenient.

[0015] In some embodiments, the reference includes a second component and a second base, the second component being disposed on the second base and forming a second positioning groove between the second component and the second base for insertion of at least the third side.

[0016] In some embodiments, the strapping mechanism further includes a support component. When the stretched fastening strap rises to a position outside the battery cell module, the support component supports the fastening strap to prevent it from falling off when tensioned, thereby ensuring stable strapping.

[0017] In some embodiments, the support assembly includes a telescoping member and a support member connected to the output shaft of the telescoping member, the telescoping member being used to drive the support member toward the fastening band so that the support member supports the fastening band.

[0018] In some embodiments, the strapping mechanism further includes a first sensor for detecting whether the fastening strap is in a preset position on the battery cell module. This facilitates monitoring of battery assembly quality and improves the quality management of battery assembly.

[0019] Secondly, this application provides a battery assembly system, which includes an extrusion mechanism and a sleeve mechanism as described in the above embodiments. The extrusion mechanism is located above the sleeve mechanism and is used to load and extrude the battery cell module. The first positioning member and the second positioning member are respectively located on opposite sides of the extrusion mechanism.

[0020] In some embodiments, the pressing mechanism includes a base for loading the battery cell module, a limiting seat, and a pusher, wherein the pusher is used to push the battery cell module along the length of the base so that the battery cell module abuts against the limiting seat.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 This is a perspective view of the sleeve mechanism structure of some embodiments of this application;

[0024] Figure 2 This is a perspective view of a battery assembly system according to some embodiments of this application;

[0025] Figure 3 This is another perspective view of the battery assembly system according to some embodiments of this application;

[0026] Figure 4 This is an exploded view of the sleeve mechanism structure of some embodiments of this application;

[0027] Figure 5 This is another perspective view of the sleeve mechanism structure of some embodiments of this application;

[0028] Figure 6 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle circle;

[0029] Figure 7 for Figure 1 Enlarged schematic diagram of the structure at point B in the middle circle.

[0030] 100. Belt mechanism; 110. Positioning structure; 111. Reference; 1111. Second component; 1112. Second base; 1113. Second positioning groove; 1114. First groove segment; 1115. Second groove segment; 112. First positioning element; 1121. First component; 1122. First base; 1123. First positioning groove; 113. Second positioning element; 120. Driver; 121. First driver; 122. Second driver; 130. Lifter; 131. Mounting component; 140. First beam; 141. First adapter; 142. First power unit; 143. First base; 14 4. First guide rail; 145. First slider; 150. Second beam; 151. Second adapter; 152. Second power unit; 153. Second base; 154. Second guide rail; 155. Second slider; 160. Support assembly; 161. Telescopic device; 162. Support piece; 170. First sensor; 200. Extrusion mechanism; 210. Pusher; 220. Base; 230. Limit seat; 240. Push block; 250. Second sensor; 300. Battery cell module; 310. Battery cell; 400. Fastening belt; 410. First side; 420. Second side; 430. Third side; 440. Fourth side. Detailed Implementation

[0031] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0036] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0037] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0038] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0039] Currently, with the continuous expansion of the application fields of power batteries, the market demand for them is constantly increasing, which also puts forward higher requirements for the battery assembly cycle and assembly yield.

[0040] The inventors noted that in the traditional steel strip manufacturing process, when the two sides of the steel strip undergo elastic deformation under stress, the side not under stress also undergoes structural deformation, resulting in a certain deviation between the unfolded dimensions and the preset dimensions. If the deviated dimensions cannot be adapted to the cell module 300, at least one side of the steel strip will severely scratch the blue film of the cell, causing the assembled battery to fail to meet quality control requirements. This can lead to rework and repair, or even complete scrapping, severely impacting battery production efficiency and yield.

[0041] Based on the above considerations, and in order to solve the problem of easy scratching of the blue film on the battery cell during assembly, the inventors, after in-depth research, designed a sleeve mechanism 100, which is described in detail below. Figure 1 During positioning, at least a reference 111, a first positioning element 112, and a second positioning element 113 are set, and the first positioning element 112 and the second positioning element 113 are positioned opposite each other. At the same time, at least one driver 120 is used to drive the first positioning element 112 and the second positioning element 113 to move away from or toward each other, and at least one lifter 130 is configured to drive the entire positioning structure 110 to move up and down.

[0042] In the sleeve mechanism 100 designed in this way, the fastening strap 400 is effectively positioned on at least three sides when it is spread out; at the same time, with the reference 111 as the positioning base, the fastening strap 400 will always be positioned with the reference 111 as the positioning base when it is spread out, which effectively avoids large deformation on the side of the fastening strap 400 that is not under force, which could easily scratch the blue film of the battery cell. This effectively solves the problem of easy scratching of the blue film of the battery cell during assembly, thereby improving the battery assembly yield and efficiency.

[0043] The sleeve mechanism 100 disclosed in this application is applicable to the sleeve connection of steel strips in the battery cell module 300. For example, the sleeve mechanism 100 can automatically sleeve the lower steel strip onto the battery cell module 300, or automatically sleeve the upper steel strip onto the battery cell module 300. Of course, the sleeve mechanism 100 disclosed in this application is not limited to the equipment described above, but can also be applied to all equipment that requires sleeve connection, such as aluminum ingot binding equipment, carton packaging equipment, etc.

[0044] The sleeve mechanism 100 disclosed in this application embodiment can be used in conjunction with the battery compression mechanism 200, or with other ejection mechanisms. For the sleeve mechanism 100 used in conjunction with the compression mechanism 200, please refer to... Figure 1 and Figure 2Before the lifting device 130 drives the expanded fastening band 400 to be fitted over the cell module 300, the compression mechanism 200 can compress the cell module 300, causing it to deform. When the lifting device 130 fits the expanded fastening band 400 over the cell module 300, the compression mechanism 200 retracts to release the pressure, causing the cell module 300 to spring back and tighten onto the fastening band 400. If the fitting mechanism 100 cooperates with the ejection mechanism, the lifting device 130 raises the expanded fastening band 400 until it is fitted over the cell module 300. At this time, the expanded fastening band 400 can be directly slid onto the cell module 300 through the ejection mechanism.

[0045] This application provides a battery assembly system that uses a sleeve mechanism 100 for automatic sleeve application. Please refer to [link / reference]. Figure 2 and Figure 3 This includes a sleeve mechanism 100 and a pressing mechanism 200, etc. In this embodiment, the pressing mechanism 200 can be designed in various ways, as long as it can press a battery cell module 300 composed of at least two side-by-side battery cells 310. For example, the pressing mechanism 200 can be designed as, but is not limited to, a combination structure of a cylinder and a push block 240, a combination structure of an electric cylinder and a push block 240, a combination structure of a motor, a lead screw, and a push block 240, etc.

[0046] According to some embodiments of this application, this application provides a strapping mechanism 100. Please refer to... Figure 1 and Figure 4 The strapping mechanism 100 includes a positioning structure 110, a driver 120, and a lifter 130. The positioning structure 110 includes a reference 111 and two opposing positioning members 112 and 113. The first positioning member 112 and the second positioning member 113 are respectively used for positioning and engaging with the first side 410 and the second side 420 of the fastening strap 400. The reference 111 is used for positioning and engaging with a third side 430 of the fastening strap 400 connected between the first side 410 and the second side 420. The driver 120 is used to drive the first positioning member 112 and the second positioning member 113 to move away from or towards each other. The lifter 130 is used to drive the positioning structure 110 to move up and down relative to the battery cell module 300.

[0047] The phrase "the actuator 120 drives the first positioning member 112 and the second positioning member 113 to move away from each other or toward each other" should be understood as follows: when driving the first positioning member 112 and the second positioning member 113, they can share a single actuator 120, or each can be driven by a separate actuator 120. When the first positioning member 112 and the second positioning member 113 share a single actuator 120, the actuator 120 can be designed as, but is not limited to, a combination structure of a motor and a lead screw, a telescopic device, or a combination structure of two hinged struts. The telescopic device can be, but is not limited to, a cylinder, a hydraulic cylinder, or an electric cylinder. For example, when the actuator 120 is a combination structure of a motor and a lead screw, both the first positioning member 112 and the second positioning member 113 are screwed onto the lead screw, and their threads rotate in opposite directions. In this case, when the motor drives the lead screw to rotate, the first positioning member 112 and the second positioning member 113 move away from each other or toward each other under the threaded transmission.

[0048] "Positioning fit" refers to the tight engagement between the first side 410, the second side 420, and the third side 430 of the fastening band 400 and the first positioning member 112, the second positioning member 113, and the reference 111, respectively, during the unfolding process of the fastening band 400. For example, slots can be made on the first positioning member 112, the second positioning member 113, and the reference 111 to engage with the respective sides of the fastening band 400; or, protrusions can be provided on the first positioning member 112, the second positioning member 113, and the reference 111 to hook onto the inner side of each band of the fastening band 400; or, fixing components such as magnetic suction devices, snap-fit ​​structures, and positioning pins can be provided on the first positioning member 112, the second positioning member 113, and the reference 111. In addition, positioning can be done manually or automatically, for example, by using a robot to position the fastening strap 400 on the positioning structure 110. The first side 410 is opposite to the second side 420, and the third side 430 is opposite to the fourth side 440.

[0049] The fastening strap 400 is not limited to steel straps; it can also be made of other materials. In other words, any fastening strap 400 capable of fastening the battery cell module 300 can be automatically fastened using the strapping mechanism 100 of this embodiment. Furthermore, during the strapping process, the fourth side 440 of the fastening strap 400 may or may not be positioned. When the fourth side 440 of the fastening strap 400 is not positioned, the positioning structure 110 does not have a corresponding structure at the position corresponding to the fourth side 440, allowing the fourth side 440 of the fastening strap 400 to be in a free state. This allows for compatibility with fastening straps 400 of various lengths, expanding its applicability.

[0050] During battery assembly, the third side 430 of the fastening strap 400 is positioned on the reference 111 as the reference end for positioning the fastening strap 400. Then, the first side 410 and the second side 420 of the fastening strap 400, which are respectively positioned opposite each other, are positioned on the first positioning member 112 and the second positioning member 113, so that at least three sides of the fastening strap 400 are effectively positioned, ensuring the precise positioning of the fastening strap 400. As at least one driver 120 drives the first positioning member 112 and the second positioning member 113 to move away from each other, the first side 410 and the second side 420 are respectively subjected to force and move away from each other, causing elastic deformation, so that the inside of the fastening strap 400 is stretched open. After being stretched open, the positioning structure 110 is driven to rise as a whole by at least one lifter 130, so that the stretched fastening strap 400 is sleeved on the outside of the cell module 300. Since the fastening band 400 always uses the reference 111 as the positioning base when it is spread out, it can effectively prevent the side of the fastening band 400 that is not under force from undergoing large deformation and easily scratching the blue film of the battery cell. This achieves precise and stable banding, improving the battery assembly yield and efficiency.

[0051] According to some embodiments of this application, optionally, please refer to Figure 1 and Figure 5 There are at least two actuators 120, which are at least a first actuator 121 and a second actuator 122. The first actuator 121 and the second actuator 122 respectively drive the first positioning member 112 and the second positioning member 113 to achieve movement away from or towards each other.

[0052] The number of first positioning elements 112 and second positioning elements 113 can be one, two, or more. In order to make the force on the first side 410 and the second side 420 more balanced, multiple first positioning elements 112 and multiple second positioning elements 113 can be provided, so that the first side 410 is positioned on multiple first positioning elements 112, and the second side 420 is positioned on multiple second positioning elements 113.

[0053] Furthermore, when there are multiple first positioning elements 112 and multiple second positioning elements 113, the quantity configuration between the first driver 121 and the first positioning elements 112 can be one-to-one or one-to-many, meaning multiple first positioning elements 112 share one first driver 121. Similarly, the quantity configuration between the second driver 122 and the second positioning elements 113 can be one-to-one or one-to-many. The first driver 121 and the second driver 122 can be, but are not limited to, cylinders, electric cylinders, hydraulic cylinders, etc.

[0054] The actuator 120 is divided into at least a first actuator 121 and a second actuator 122, such that the first positioning member 112 and the second positioning member 113 are driven independently by the first actuator 121 and the second actuator 122, respectively. This design ensures smooth movement of the first positioning member 112 and the second positioning member 113, thereby ensuring more stable opening action of the fastening strap 400 and improving the assembly quality of the battery.

[0055] According to some embodiments of this application, optionally, please refer to Figure 1 and Figure 5 The positioning structure 110 also includes a first beam 140 equipped with a first driver 121 and a second beam 150 equipped with a second driver 122. The first beam 140 and the second beam 150 can be raised and lowered under the drive of the lifting device 130, and at least one of them is provided with a reference 111.

[0056] In driving the first beam 140 and the second beam 150, at least one independent lifting device 130 can be provided. When one lifting device 130 is provided, the first beam 140 and the second beam 150 are driven to rise and fall together by the same lifting device 130; when at least two lifting devices 130 are provided, the rising and falling of the first beam 140 and the second beam 150 can be completed by their respective corresponding lifting devices 130.

[0057] Additionally, it should be noted that the first beam 140 and the second beam 150 are raised and lowered under the drive of the lifting device 130. The purpose of the raising action is to lift the fastening strap 400 on the positioning structure 110 so that it can be fitted onto the cell module 300. The purpose of the lowering action is to: 1. separate the positioning structure 110 from the fastening strap 400, so that the fastening strap 400 remains on the cell module 300; 2. restore the initial position of the positioning structure 110, preparing for the assembly of the next battery. The lifting device 130 can be, but is not limited to, a cylinder, hydraulic cylinder, or electric cylinder.

[0058] The first actuator 121 can be installed on the first beam 140 by, but is not limited to, bolting, snap-fitting, pinning, welding, riveting, etc. Similarly, the second actuator 122 can also be installed on the second beam 150 by, but is not limited to, bolting, snap-fitting, pinning, welding, riveting, etc.

[0059] The first beam 140 and the second beam 150 can connect the reference 111, the first positioning member 112 and the second positioning member 113 together. In this way, when the positioning structure 110 needs to be driven to rise or fall, only the first beam 140 and the second beam 150 need to be driven to rise or fall, making it more convenient to put the fasteners on the outside of the battery cell module 300 after they are spread out.

[0060] According to some embodiments of this application, optionally, please refer to Figure 1 and Figure 5The belt mechanism 100 also includes a first adapter 141 and a first power unit 142 disposed on the first adapter 141. The output shaft of at least one lifting device 130 is connected to the first adapter 141, and the first power unit 142 is used to drive the first beam 140 to rise and fall.

[0061] The output shaft of at least one lifter 130 can be directly connected to the first adapter 141 or indirectly connected. When the output shaft of the lifter 130 is indirectly connected to the first adapter 141, an intermediate structure needs to be provided between the lifter 130 and the first adapter 141. For example, the output shaft of the lifter 130 is connected to the first adapter 141 through a mounting member 131. The mounting member 131 can have various shapes, such as square, concave, L-shaped, etc.

[0062] Furthermore, if the lifting device 130 and the first adapter 141 are indirectly connected, the arrangement of the lifting device 130 within the belt mechanism 100 is more flexible and reasonable. For example, the lifting device 130 can be located on one side of the first beam 140, while the first adapter 141 and the first power unit 142 are both located on the other side of the first beam 140. In this case, one end of the mounting member 131 is connected to the first adapter 141, and the other end passes around the first beam 140 and is connected to at least one lifting device 130.

[0063] Optionally, the first power unit 142 may be, but is not limited to, a cylinder, an electric cylinder, a hydraulic cylinder, etc.

[0064] A first adapter 141 and a first power unit 142 are added between the lifting device 130 and the first beam 140, enabling the lifting of the first beam 140 to have a two-stage drive. One stage is driven by the lifting device 130, which uses the lifting device 130 to lift the first adapter 141, the first power unit 142, and the first beam 140 as a whole. The second stage is driven internally by the first power unit 142. When the first adapter 141 is raised to a certain height by the lifting device 130, the first power unit 142 is activated. Using the first adapter 141 as support, it drives the first beam 140 to a preset height position, allowing the extended fastening strap 400 to be fitted over the battery cell module 300. This two-stage drive reduces the drive stroke of a single power unit, effectively distributing the load across it and ensuring a safer and more stable lifting of the first beam 140.

[0065] According to some embodiments of this application, optionally, please refer to Figure 1 and Figure 5 The belt mechanism 100 also includes a second adapter 151 and a second power unit 152 disposed on the second adapter 151. The output shaft of at least one lifting device 130 is connected to the second adapter 151, and the second power unit 152 is used to drive the second beam 150 to rise and fall.

[0066] The second adapter 151 has a similar structural design to the first adapter 141. When connected to the output shaft of at least one lifter 130, it can be directly or indirectly connected. When the output shaft of the lifter 130 is indirectly connected to the second adapter 151, an intermediate structure needs to be provided between the lifter 130 and the second adapter 151. For example, the output shaft of the lifter 130 is connected to the second adapter 151 through a mounting member 131. The mounting member 131 can have various shapes, such as square, concave, or L-shaped.

[0067] Furthermore, if the lifting device 130 and the second adapter 151 are indirectly connected, the arrangement of the lifting device 130 within the belt mechanism 100 is more flexible and reasonable. For example, the lifting device 130 can be located on one side of the second beam 150, while the second adapter 151 and the second power unit 152 are both located on the other side of the second beam 150. In this case, one end of the mounting member 131 is connected to the second adapter 151, and the other end passes around the second beam 150 and is connected to at least one lifting device 130.

[0068] Optionally, the second power unit 152 may be, but is not limited to, a cylinder, an electric cylinder, a hydraulic cylinder, etc.

[0069] Similarly, by adding a second adapter 151 and a second power unit 152 between the lifting device 130 and the second beam 150, the lifting and lowering of the second beam 150 is driven in two stages: one stage is driven by the lifting device 130, which uses the lifting device 130 to lift and lower the second adapter 151, the second power unit 152, and the second beam 150 as a whole; the second stage is driven internally by the second power unit 152. When the second adapter 151 is lifted to a certain height by the lifting device 130, the second power unit 152 is activated. Using the second adapter 151 as support, it drives the second beam 150 to reach the preset height position, so that the extended fastening strap 400 is fitted over the battery cell module 300. In this way, by using two-stage drive lifting and lowering, the drive stroke of a single power device is reduced, and the load on a single power device is effectively distributed, which helps to ensure that the lifting and lowering of the second beam 150 is safer and more stable.

[0070] According to some embodiments of this application, optionally, please refer to Figure 1 The belt mechanism 100 also includes a first base 143. The first beam 140 is slidably disposed on the first base 143 and can move in the height direction of the first base 143.

[0071] There are various sliding designs for the first beam 140 on the first base 143, as long as they allow the first beam 140 to move along the height direction of the first base 143. For example: the first base 143 may have a slide rail, and the first beam 140 may have rollers or similar structures; or, the first base 143 may have a sliding groove, and the first beam 140 may have a sliding strip that mates with the sliding groove; or, the first base 143 may have a sliding strip, and the first beam 140 may have a sliding groove that mates with the sliding groove, etc. To facilitate understanding of the height direction of the first base 143 in this embodiment, Figure 1 For example, the height direction of the first base 143 is... Figure 1 The direction pointed to by any arrow in S1.

[0072] The first beam 140 is slidably mounted on the first base 143, so that the lifting and lowering process of the first beam 140 is supported, preventing the first beam 140 from shaking or shifting during lifting and lowering, thereby ensuring that the fastening band 400 after being stretched is stably fitted over the cell module 300, which is conducive to improving the battery assembly quality.

[0073] According to some embodiments of this application, optionally, please refer to Figure 1 A first guide rail 144 extends along its height on the first base 143. A first slider 145 that mates with the first guide rail 144 is provided on the first beam 140.

[0074] The extension length of the first guide rail 144 on the first base 143 needs to be related to the upward stroke of the fastening band 400 after it is extended. For example, the extension length of the first guide rail 144 on the first base 143 is designed to be greater than the upward stroke of the fastening band 400 after it is extended. The upward stroke of the fastening band 400 after it is extended should be understood as the distance that the fastening band 400 travels when it rises to the outside of the battery cell module 300 under the drive of the lifter 130.

[0075] By utilizing the cooperation between the first guide rail 144 and the first slider 145, the movement of the first beam 140 on the first base 143 becomes more stable and smooth, ensuring that the fastening band 400 is more accurately fitted onto the outside of the battery cell module 300.

[0076] According to some embodiments of this application, optionally, please refer to Figure 1 The belt mechanism 100 also includes a second base 153 opposite to the first base 143. A second guide rail 154 extends along the height direction of the second base 153. A second slider 155 that cooperates with the second guide rail 154 is provided on the second beam 150.

[0077] Similarly, the extension length of the second guide rail 154 on the second base 153 needs to be related to the upward stroke of the extended fastening strap 400. For example, the extension length of the second guide rail 154 on the second base 153 is designed to be greater than the upward stroke of the extended fastening strap 400. The upward stroke of the extended fastening strap 400 should be understood as the distance traveled by the fastening strap 400 as it rises to the outside of the battery cell module 300 under the drive of the lifter 130. To facilitate understanding of the height direction of the second base 153 in this embodiment, ... Figure 1 For example, the height direction of the second base 153 is... Figure 1 The direction pointed to by any arrow in S2.

[0078] By utilizing the cooperation between the second guide rail 154 and the second slider 155, the movement of the second beam 150 on the second base 153 becomes more stable and smooth, ensuring that the fastening band 400 is more accurately fitted onto the outside of the battery cell module 300.

[0079] According to some embodiments of this application, optionally, please refer to Figure 6 The first positioning member 112 and / or the second positioning member 113 includes a first component 1121 and a first base 1122 that is driven and cooperates with the driver 120. The first component 1121 is disposed on the first base 1122 and forms a first positioning groove 1123 between the first component 1121 and the first base 1122.

[0080] At least one of the first positioning member 112 and the second positioning member 113 is composed of a first component 1121 and a first base 1122. If only one of the first positioning member 112 and the second positioning member 113 is composed of a first component 1121 and a first base 1122, the other can be designed with other structures, such as: designing the other as a block structure with slots or protrusions to position one side of the fastening band 400; or designing the other as a platform structure with additional fixing components such as magnetic suction devices, snap-fit ​​structures, or positioning pins.

[0081] Optionally, the connection between the first component 1121 and the first base 1122 can be, but is not limited to, bolt connection, snap-fit, riveting, welding, etc.

[0082] During the strapping process, the first side 410 and the second side 420 of the strap are respectively inserted into the first positioning grooves 1123 on both sides, so that the first side 410 and the second side 420 are stably positioned so that the strap can be effectively stretched. At the same time, the positioning using the groove structure makes the positioning operation of the strap more convenient and helps to improve the assembly efficiency of the battery.

[0083] According to some embodiments of this application, optionally, please refer to Figure 7The reference 111 includes a second component 1111 and a second base 1112. The second component 1111 is disposed on the second base 1112 and forms a second positioning groove 1113 between the second component 1111 and the second base 1112 for at least the third side 430 to be inserted.

[0084] The second positioning groove 1113 being able to accommodate at least the third side 430 should be understood as follows: the second positioning groove 1113 can accommodate only the third side 430, or it can accommodate the third side 430 and part of the first side 410 or part of the second side 420. When the second positioning groove 1113 can accommodate the third side 430 and part of the first side 410 or part of the second side 420 simultaneously, the second positioning groove 1113 is bent on the reference 111, that is, the second positioning groove 1113 has two sections: a first groove section 1114 and a second groove section 1115. In this case, the first groove section 1114 and the second groove section 1115 are set at an angle, with the first groove section 1114 accommodating the third side 430. The second groove section 1115 accommodating part of the first side 410 or part of the second side 420. This design makes the positioning of the fastening band 400 on the positioning structure 110 more stable and accurate.

[0085] Optionally, the connection between the second component 1111 and the second base 1112 can be, but is not limited to, bolt connection, snap-fit, riveting, welding, etc.

[0086] During the strapping process, the third side 430 of the strap is inserted into the second positioning groove 1113, allowing the fastening strap 400 to use this as a positioning basis, thus improving its positioning accuracy. Simultaneously, utilizing the groove structure for positioning simplifies the operation; the operator only needs to insert the third side 430, making the operation more convenient and improving battery assembly efficiency.

[0087] According to some embodiments of this application, optionally, please refer to Figure 1 The strapping mechanism 100 also includes a support component 160. When the extended fastening strap 400 rises to a position where it is fitted over the cell module 300, the support component 160 supports the fastening strap 400.

[0088] During the strapping process, after the battery cell module 300 is fitted with the fastening strap 400, the battery cell module 300 will release and spring back. However, during the springback process, the battery cell module 300 will not immediately tighten the fastening strap 400, and the fastening strap 400 may fall off again. To address this, a support component 160 is added to provide support for the fastening strap 400.

[0089] During the support process, the support component 160 can move to the underside of the fastening strap 400 and support it when the fastening strap 400 reaches the position outside the battery cell module 300. Of course, the support component 160 always maintains a support state with the fastening strap 400. For example, the support component 160 can also rise and fall synchronously with the positioning structure 110, so that the support component 160 and the fastening strap 400 always maintain a support state.

[0090] When the stretched fastening band 400 rises under the action of the lifting device 130 until it is fitted over the battery cell module 300, the battery cell module 300 begins to tension the fastening band 400. During this process, the supporting component 160 supports the fastening band 400 from below, keeping the position of the fastening band 400 relatively fixed and preventing it from falling off during tensioning, thus ensuring stable tape application.

[0091] According to some embodiments of this application, optionally, please refer to Figure 1 The support assembly 160 includes a telescopic member 161 and a support member 162 connected to the output shaft of the telescopic member 161. The telescopic member 161 is used to drive the support member 162 toward the fastening belt 400 so that the support member 162 supports the fastening belt 400.

[0092] Driven by the telescopic device 161, the support member 162 can move towards the fastening strap 400. This allows for selective support of the fastening strap 400. For example, when the fastening strap 400 rises to fit over the battery cell module 300, the telescopic device 161 moves the support member 162 to the bottom of the fastening strap 400 and into contact with it. At this time, the position of the support member 162 must be consistent with its position when the fastening strap 400 is fitted over the battery cell module 300. Alternatively, to better support the fastening strap 400, the support member 162 can be designed as a sheet structure, with the sheet structure bent to better support the fastening strap 400.

[0093] Furthermore, when supporting, the support member 162 can be placed on either side of the fastening band 400, which is not specifically limited in this embodiment. Of course, placing the support member 162 on the fourth side 440 of the fastening band 400 can avoid structural congestion between it and the positioning structure 110, and the overall strapping effect will be better.

[0094] Optionally, the telescopic member 161 may be, but is not limited to, a cylinder, a hydraulic cylinder, an electric cylinder, etc.

[0095] The telescopic device 161 drives the support 162 to move below the fastening strap 400 and supports it, ensuring that the fastening strap 400 will not fall off when it is engaged with the battery cell module 300, which is beneficial for the stable installation operation. When the fastening strap 400 and the battery cell module 300 are successfully installed, the telescopic device 161 can drive the support 162 to retract, leaving space around the battery module and avoiding structural interference between the support 162 and subsequent operations.

[0096] According to some embodiments of this application, optionally, please refer to Figure 4 The strapping mechanism 100 also includes a first sensor 170. The first sensor 170 is used to detect whether the fastening strap 400 is in a preset position on the battery cell module 300.

[0097] Optionally, the first sensor 170 may be, but is not limited to, a pressure sensor, a photosensitive sensor, etc.

[0098] The first sensor 170 detects the position of the fastening band 400 on the cell module 300, and determines whether the fastening band 400 is installed in place based on the detection result. This is beneficial for monitoring the battery assembly quality and improving the quality management of battery assembly.

[0099] According to some embodiments of this application, this application also provides a battery assembly system, please refer to... Figure 1 , Figure 2 and Figure 3 The battery assembly system includes an extrusion mechanism 200 and a sleeve mechanism 100 as described in any of the above embodiments. The extrusion mechanism 200 is located above the sleeve mechanism 100 and is used to load and extrude the battery cell module 300. The first positioning member 112 and the second positioning member 113 are located on opposite sides of the extrusion mechanism 200, respectively.

[0100] The extrusion mechanism 200 is a device that extrudes the parallel-loaded battery cell modules 300 to cause slight structural compression of the battery cell modules 300. Thus, when the extended fastening strap 400 is fitted over the battery cell module 300, the extrusion mechanism 200 releases force on the battery cell module 300, allowing the battery cell module 300 to spring back and tighten the fastening strap 400. The battery cell module 300 is a module composed of at least two battery cells 310 arranged and assembled side-by-side.

[0101] Additionally, when loading the cell module 300, the cells 310 can be arranged sequentially along the length direction of the first side 410 or the second side 420 of the fastening strap 400 to form the cell module 300. At this time, the pressing direction of the pressing mechanism 200 is consistent with the length direction of the first side 410 or the second side 420. Of course, the battery fitting effect is better when the pressing direction of the pressing mechanism 200 is specifically from the fourth side 440 to the third side 430. To facilitate understanding of the length direction of the first side 410 or the second side 420, Figure 4 For example, the length direction of the first side 410 or the second side 420 is... Figure 4 The direction pointed to by any arrow in S3.

[0102] When the fastening band 400 is positioned on the positioning structure 110, the extrusion mechanism 200 is activated to extrude the battery cell module 300. Then, the driver 120 drives the first positioning member 112 and the second positioning member 113 to move away from each other to open the fastener. After opening, the lifting device 130 drives the positioning structure 110 to rise as a whole so that the opened fastening band 400 is fitted over the battery cell module 300. At this time, the extrusion mechanism 200 is controlled to release the force on the battery cell module 300, so that the battery cell module 300 springs back to tighten the fastening band 400, thus completing the automatic fastening operation.

[0103] According to some embodiments of this application, optionally, please refer to Figure 3 The pressing mechanism 200 includes a base 220 for loading the battery cell module 300, a limiting seat 230, and a pusher 210. The pusher 210 is used to push the battery cell module 300 along the length of the base 220 so that the battery cell module 300 presses against the limiting seat 230.

[0104] When the pusher 210 pushes the battery cell module 300, the pushing stroke of the pusher 210 needs to be properly controlled. This stroke cannot be too small or too large. If it is too small, slight structural compression between the battery cell modules 300 will not occur; if it is too large, the battery cell module 300 will easily be damaged. Therefore, the pushing stroke of the pusher 210 needs to be matched and adjusted with the actual size of the fastening band 400. The pusher 210 can be, but is not limited to, a combination of a motor and a lead screw, a cylinder, a hydraulic cylinder, an electric cylinder, etc. To facilitate pushing the battery cell module 300, a push block 240 can be provided. The push block 240 works in conjunction with the pusher 210, transmitting the pushing force to the battery cell module 300 through the push block 240.

[0105] The arrangement of the base 220 in the battery assembly system should be such that the length of the base 220 is parallel to the length of the first side 410 or the second side 420. Additionally, the limiting seat 230 may or may not be located on the base 220. For example, the limiting seat 230 may be located on the side of the base 220 facing the reference 111.

[0106] To improve assembly accuracy, multiple sets of sensors can be installed on the extrusion mechanism 200 to determine whether the battery cell module 300 is within the required position. For example, the extrusion mechanism 200 is equipped with a second sensor 250, which is used to determine whether one side of the battery module exceeds the set position.

[0107] When the battery cell module 300 is pushed, the pusher 210 is activated to push the battery cell module 300 along the length of the base 220, so that one end of the battery cell module 300 abuts against the limit seat 230, thereby causing the battery cell module 300 to be stably compressed and deformed.

[0108] Please refer to some embodiments of this application. Figure 1 , Figure 2 and Figure 4 This application provides a mechanism for quickly and automatically loading steel strips. The mechanism includes a positioning structure 110, a driver 120, a lifter 130, a fastening strip 400, and a support assembly 160. The positioning structure 110 includes a reference 111, a first positioning element 112, and a second positioning element 113. During operation, the robot automatically places the fastening strip 400 onto the positioning structure 110 and places the pre-assembled battery cell module 300 onto the extrusion mechanism 200. When the extrusion mechanism 200 moves to the right, the battery cell module 300 is extruded. After extrusion, the driver 120 expands the fastening strip 400 around its perimeter. Then, the lifter 130 places the expanded fastening strip 400 over the lower end of the battery cell module 300. At this time, the extrusion mechanism 200 moves to the left to release force, and the battery cell module 300 springs back to tighten the fastening strip 400. During this process, the supporting component 160 ensures that the steel strip will not fall off; finally, the discharged battery cell module 300 is firmly bound together with the fastening strap 400.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A belt-sleeving mechanism, characterized in that, include: The positioning structure includes a reference and a first positioning member and a second positioning member arranged opposite to each other. The first positioning member and the second positioning member are respectively used to position and cooperate with the first side and the second side opposite to each other on the fastening band. The reference is used to position and cooperate with the third side on the fastening band that connects the first side and the second side. A driver is used to drive the first positioning member and the second positioning member to move away from or toward each other. The driver is divided into a first driver, which drives the first positioning member. A lifter is used to drive the positioning structure to move relative to the cell module so that the spread fastening strap is fitted over the cell module. The positioning structure further includes a first beam equipped with the first driver, the first beam being able to move up and down under the drive of the lifting device; the belt mechanism further includes a first adapter and a first power unit disposed on the first adapter, at least one output shaft of the lifting device being connected to the first adapter, the first power unit being used to drive the first beam to move up and down.

2. The sleeve mechanism according to claim 1, characterized in that, The actuators are at least two, with at least a second actuator driving the second positioning member to move away from or toward each other.

3. The sleeve mechanism according to claim 2, characterized in that, The positioning structure also includes a second beam equipped with the second driver, the first beam and the second beam being able to move up and down under the drive of the lifting device, and at least one of them having the reference.

4. The sleeve mechanism according to claim 3, characterized in that, The belt mechanism further includes a second adapter and a second power unit disposed on the second adapter. At least one output shaft of the lifting device is connected to the second adapter, and the second power unit is used to drive the second beam to rise and fall.

5. The sleeve mechanism according to claim 3, characterized in that, The belt mechanism further includes a first base, on which the first beam is slidably disposed and movable in the height direction of the first base.

6. The sleeve mechanism according to claim 5, characterized in that, The first base is provided with a first guide rail extending along its own height direction, and the first beam is provided with a first slider that cooperates with the first guide rail.

7. The sleeve mechanism according to claim 5, characterized in that, The sleeve mechanism also includes a second base opposite to the first base, a second guide rail extending along its own height direction on the second base, and a second slider cooperating with the second guide rail on the second beam.

8. The sleeve mechanism according to any one of claims 1-7, characterized in that, The first positioning member and / or the second positioning member includes a first component and a first seat that engages with the driver. The first component is disposed on the first seat and forms a first positioning groove between it and the first seat.

9. The sleeve mechanism according to any one of claims 1-7, characterized in that, The reference includes a second component and a second base, the second component being disposed on the second base and forming a second positioning groove between the component and the second base for at least the third side to be inserted.

10. The sleeve mechanism according to any one of claims 1-7, characterized in that, The strapping mechanism also includes a support component, which supports the strap when the extended fastening strap rises to the position outside the battery cell module.

11. The sleeve mechanism according to claim 10, characterized in that, The support assembly includes a telescopic member and a support member connected to the output shaft of the telescopic member. The telescopic member is used to drive the support member toward the fastening band so that the support member supports the fastening band.

12. The sleeve mechanism according to any one of claims 1-7, characterized in that, The strapping mechanism also includes a first sensor, which is used to detect whether the fastening strap is in a preset position on the battery cell module.

13. A battery assembly system, characterized in that, The battery assembly system includes an extrusion mechanism and a sleeve mechanism as described in any one of claims 1-12. The extrusion mechanism is located above the sleeve mechanism and is used to load and extrude the battery cell module. The first positioning member and the second positioning member are respectively located on opposite sides of the extrusion mechanism.

14. The battery assembly system according to claim 13, characterized in that, The extrusion mechanism includes a base for loading the battery cell module, a limiting seat, and a pusher. The pusher is used to push the battery cell module along the length of the base so that the battery cell module presses against the limiting seat.

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