Stacking device and stacking method for battery cell modules

Abstract

The application relates to the technical field of battery manufacturing, in particular to a battery cell module stacking device and a stacking method. The battery cell module stacking device comprises a rack, a supporting mechanism, a pressing mechanism and a tray. The supporting mechanism is used for supporting battery cells. The pressing mechanism is connected with the rack. Part of the pressing mechanism can move along the axial direction of the supporting mechanism and is used for extruding a plurality of battery cells into a battery cell module. The tray is arranged on the rack in a movable manner relative to the rack and is used for supporting the battery cell module. In the technical scheme, the extrusion process of the battery cell module does not need to be operated on a tray, thereby reducing the length of the tray, lowering the manufacturing cost of the tray, shortening the length of a production line, reducing the floor area of the stacking device and further facilitating the arrangement of other equipment.

Description

[0001] This application is a divisional application of the invention patent application filed on June 27, 2022, with application number 202280049136.4 and entitled "Stacking device and stacking method for battery cell modules". Technical Field

[0002] This application relates to the field of battery manufacturing technology, and in particular to a stacking device and stacking method for battery cell modules. Background Technology

[0003] With the government's vigorous promotion of new energy, electric vehicles have become the mainstream trend for the future. The key to electric vehicle design lies in the three core technologies: battery, motor, and electronic control. Among them, the power battery, as the most critical power supply component in the vehicle, determines key indicators such as the vehicle's range, cost, lifespan, and safety performance.

[0004] In related technologies, power battery cell modules are typically composed of multiple stacked cells. As the requirements for cell module assembly efficiency increase, the length of the cell modules continues to grow. In existing technologies, multiple cells are compressed and stacked into modules on a tray, and the cell modules are then transported using the tray. Because the cells need to be spaced out before stacking, this correspondingly increases the length of the tray, increases the manufacturing cost of the tray, and extends the length of the production line. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the purpose of this application is to provide a stacking device and stacking method for battery cell modules, which can effectively reduce the length of the tray and reduce the manufacturing cost of the tray.

[0006] In a first aspect, this application proposes a stacking device for battery cell modules, the stacking device comprising: frame; Support mechanism, the support mechanism being used to support the battery cell; A pressing mechanism is connected to the frame, and a portion of the pressing mechanism is movable along the axial direction of the support mechanism and is used to extrude multiple battery cells into a battery cell module. A tray is disposed on the rack in a manner movable relative to the rack and is used to support the battery cell module.

[0007] In the technical solution of this application, a support mechanism is set up, on which the battery cells are placed. A pressing mechanism moves along the axial direction of the support mechanism to compress multiple battery cells into a battery cell module. The battery cell module is then transferred to a tray, and the battery cell module is transported to the next process via the tray. The compression process of the battery cell module does not need to be performed on the tray, thereby reducing the length of the tray, lowering the manufacturing cost of the tray, shortening the length of the production line, reducing the footprint of the stacking device, and further facilitating the arrangement of other equipment. At the same time, the reduced length of the tray improves the conveying efficiency of the tray, thereby improving production efficiency.

[0008] Meanwhile, since there is no need to stack them on the pallet, the battery modules can be transferred to the pallet for transport, which can effectively prevent scratches caused by the battery modules sliding on the pallet.

[0009] In some embodiments of this application, the support mechanism includes a first support member and a second support member arranged in parallel. The first support member and the second support member are slidably connected to the frame, and the sliding direction is perpendicular to the axial direction of the support structure, so that the first support member and the second support member are relatively close to or relatively far apart. By slidably connecting the first support member and the second support member to the frame, the spacing between the first support member and the second support member can be adjusted according to the length of the battery cell, thereby supporting battery cells of different lengths.

[0010] In some embodiments of this application, the stacking device further includes a telescopic mechanism connected to the frame. The first support member and the second support member are respectively connected to the telescopic mechanism and move relatively closer or further apart under the action of the telescopic mechanism. By controlling the relative movement of the first support member and the second support member towards or away from each other through the telescopic mechanism, the automation level of the stacking device can be effectively improved.

[0011] In some embodiments of this application, the telescopic mechanism includes a first driving member and a second driving member, wherein the first driving member is drivenly connected to the first support member, and the second support member is drivenly connected to the second driving member. By controlling the first support member and the second support member respectively through the first driving member and the second driving member, the automation level of the stacking device can be further improved, and it is possible to support some asymmetrical battery structures so that the center of the asymmetrical battery structure coincides with the center of the frame.

[0012] In some embodiments of this application, the tray is slidably disposed on the frame. When the first support member and the second support member are spaced apart and form a first opening, the tray can slide below the support mechanism and be positioned directly opposite the first opening. By slidably connecting the tray to the frame and positioning it directly opposite the first opening between the first and second support members during the sliding process, it is convenient to transfer the battery cell module through the first opening onto the tray below, thereby conveying the battery cell module to the next process via the tray.

[0013] In some embodiments of this application, the stacking device further includes at least one tray locking mechanism. The tray has at least one clamping component. The tray locking mechanism is connected to the clamping component and is used to drive the clamping component to move, thereby clamping or releasing the battery cell modules on the tray. By connecting the tray locking mechanism to the clamping component of the tray, the movement of the clamping component can be controlled, thereby clamping or releasing the battery cell modules on the tray, fixing the position of the battery cell modules relative to the tray, and thus transporting the battery cell modules to the next process via the tray, preventing the battery cells from falling off during transport.

[0014] In some embodiments of this application, the tray locking mechanism includes a third driving member, a fourth driving member, and a locking member. The locking member is connected to the clamping assembly. Under the driving action of the third driving member, the locking member moves vertically. Under the action of the fourth driving member, the locking member drives the clamping assembly to move along the axial direction of the support mechanism. Driving the locking member vertically with the third driving member allows for avoidance during tray movement, preventing the locking member from interfering with the tray's movement and affecting its normal operation. Driving the locking member with the fourth driving member, which in turn drives the clamping assembly to move along the axial direction of the support mechanism, allows the battery cell module to be smoothly placed on the tray and clamped securely by the clamping assembly, thus fixing the position of the battery cell module relative to the tray.

[0015] In some embodiments of this application, the stacking device further includes a lifting mechanism connected to the frame. The lifting mechanism includes at least a liftable top plate. A second opening is provided through the tray. The top plate can pass through the second opening and the first opening sequentially and abut against the battery cell module. After multiple battery cells are compressed into a module, the top plate of the lifting mechanism is controlled to pass through the second opening and the first opening sequentially and abut against the battery cell. The top plate supports the battery cell module. Then, the first support member and the second support member are controlled to move away from each other and the first opening is widened. Then, the top plate is controlled to descend and drive the battery cell module through the first opening, thereby finally placing the battery cell module on the tray and supporting the battery cell module with the tray, which facilitates the transfer of the battery cell module.

[0016] In some embodiments of this application, along the axial direction of the support mechanism, the length of the top plate is smaller than the length of the second opening but larger than the length of the battery cell module. Setting the length of the top plate smaller than the length of the second opening ensures that the top plate can smoothly pass through the second opening during lifting. Setting the length of the top plate larger than the length of the battery cell module ensures that the battery cell module is fully supported within its length range, preventing it from falling during transfer to the tray due to lack of support below.

[0017] In some embodiments of this application, the width of the second opening is smaller than the width of the battery module in a direction perpendicular to the axial direction of the support mechanism. Since the length of the top plate is smaller than the length of the second opening but larger than the length of the battery module, the length of the battery module is smaller than the length of the second opening. By setting the width of the first opening to be smaller than the width of the battery module, it is possible to effectively prevent the battery module from falling through the second opening.

[0018] In some embodiments of this application, the lifting mechanism further includes a mounting plate and a fifth driving component. The mounting plate is connected to the frame, and the fifth driving component is fixed to the mounting plate and driven to the top plate for driving the top plate to move up and down. By fixing the lifting mechanism to the frame via the mounting plate and driving the top plate to move up and down via the fifth driving component, the battery cell module can be effectively supported and transferred to the tray.

[0019] In some embodiments of this application, the stacking device further includes a brush mechanism, which includes at least a brush that is movable along the axial direction of the support mechanism and is used to clean the support mechanism. By providing the brush and allowing it to move along the axial direction of the support mechanism, the surface of the support mechanism can be effectively cleaned, removing dust and / or particles from the support mechanism and preventing contamination and / or scratches to the battery cells during the cell compression process.

[0020] In some embodiments of this application, the clamping mechanism includes a sixth driving member and a pressure plate assembly. The sixth driving member drives the pressure plate assembly to move along the axial direction of the support mechanism. The pressure plate assembly includes at least a pressure plate, which is used to compress the battery cell. By compressing the battery cell with the pressure plate, multiple battery cells can be compressed into a battery cell module. At the same time, the pressure plate has a large force-bearing surface, which can prevent damage to the battery cell due to stress concentration during the compression process.

[0021] In some embodiments of this application, the first support member includes a first support base plate and a first support side plate, the first support base plate and the first support side plate being connected to form an L-shaped structure; and / or, the second support member includes a second support base plate and a second support side plate, the second support base plate and the second support side plate being connected to form an L-shaped structure. By setting the first support member and / or the second support member into an L-shaped structure, and by using the L-shaped structure to support the bottom surface of the battery cell and position the sides of the battery cell, it is possible to ensure that multiple battery cells are aligned along the same axial direction, thereby ensuring the regular shape of the extruded battery cell module.

[0022] Secondly, this application proposes a method for stacking battery cell modules, the stacking method being implemented according to the stacking apparatus described in any of the preceding claims, comprising the following steps: Multiple battery cells are stacked on the support mechanism along the axial direction of the support mechanism, with any two adjacent battery cells spaced apart. The driving clamping mechanism moves along the axial direction of the support mechanism and squeezes multiple battery cells, causing the multiple battery cells to be stacked into a battery cell module; Transfer the battery cell modules onto the tray.

[0023] In some embodiments of this application, the step of stacking multiple battery cells into a battery cell module further includes the following step: The drive lifting mechanism lifts the battery cell module, causing the bottom surface of the battery cell module to separate from the support mechanism; The drive telescopic mechanism moves the first support member and the second support member relatively away from each other, and makes the opening size of the first opening between the first support member and the second support member larger than the cross-sectional size of the battery cell module. The drive lifting mechanism lowers the battery cell module together, and the lifting mechanism passes through the second opening on the tray, so that the bottom surface of the battery cell module abuts against the tray, and the tray supports the battery cell module. The tray containing the battery cell modules is then transported to the next process.

[0024] Since the stacking method of this application can achieve the same technical effect when implemented according to any of the stacking apparatuses described above, it will not be described in detail here.

[0025] 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

[0026] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. 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: Figure 1 This is a schematic diagram of the stacking device provided in one embodiment of this application; Figure 2 This is a schematic diagram of the initial position structure of the battery cells stacked on the stacking device according to one embodiment of this application; Figure 3 This is a schematic diagram of the structure of a battery cell module after it is stacked on a stacking device according to one embodiment of this application; Figure 4 This is a schematic diagram of the stacking device provided in one embodiment of this application from another angle; Figure 5 This is a schematic diagram of the structure of the battery cell module after it has been transferred to the tray according to one embodiment of this application; Figure 6 This is an enlarged structural diagram of part A of the stacking device provided in one embodiment of this application; Figure 7 This is an enlarged structural diagram of part B of the stacking device provided in one embodiment of this application; Figure 8 This is an enlarged structural diagram of section C of the stacking device provided in one embodiment of this application; Figure 9 This is a schematic diagram of the structure of a tray provided in one embodiment of this application; Figure 10 This is an enlarged structural diagram of section D of the tray provided in one embodiment of this application; Figure 11 This is a structural schematic diagram of the lifting mechanism provided in one embodiment of this application; Figure 12 This is a schematic diagram of the structure of the brush mechanism provided in one embodiment of this application; Figure 13 This is a flowchart of a stacking method provided in one embodiment of this application.

[0027] The reference numerals in the detailed embodiments are as follows: 1: Stacking device; 10: Rack; 20: Support mechanism; 21: First support member; 211: First support base plate; 212: Second support side plate; 22: Second support member; 23: First opening; 30: Clamping mechanism; 31: Sixth driving component; 32: First sliding plate; 33: Pressure plate; 40: Tray; 41: Base plate; 42: Second opening; 43: Clamping assembly; 431: Connecting plate; 432: Mounting base; 433: Slide bar; 434: Spring; 44: Support base; 51: First driving component; 60: Pallet locking mechanism; 61: First locking assembly; 611: Third driving component; 612: Fourth driving component; 613: Support plate; 62: Second locking assembly; 63: Locking component; 70: Lifting mechanism; 71: Top plate; 72: Mounting plate; 73: Fifth drive component; 74: Guide rod; 75: Side plate; 80: Brush mechanism; 81: Brush; 82: Seventh drive component; 83: Second slide plate; 2: Battery cell; 3: Battery cell module; 4: Conveying device. Detailed Implementation

[0028] 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.

[0029] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this application shall have the ordinary meaning as understood by those skilled in the art to which the embodiments of this application pertain.

[0030] 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", "circumferential" and other terms indicating the orientation or positional relationship are 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.

[0031] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of embodiments of this application, "a plurality of" means two or more, unless otherwise explicitly defined.

[0032] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the 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.

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace, among other fields.

[0035] The inventors have noted that in the production process of power batteries, battery cell modules are typically composed of multiple stacked cells. As the requirements for cell module assembly efficiency increase, the length of the cell modules continues to grow. In existing technologies, multiple cells are extruded and stacked into modules on a tray, and these modules are then transported using the tray. Because the cells need to be spaced out before stacking, the length of the tray is correspondingly increased, thereby increasing the manufacturing cost of the tray and extending the length of the production line. Furthermore, during the extrusion process, the bottom surface of the cells rubs against the surface of the tray, easily causing scratches on the bottom surface of the cells.

[0036] To address the issue of high manufacturing costs caused by excessively long pallets and large extension / retraction of the spring mechanism, the inventors of this application discovered that by extruding and stacking multiple battery cells onto other components to form a battery cell module, and then transferring the battery cell module onto a pallet for transport, the length of the pallet can be effectively reduced, the extension / retraction of the spring mechanism on the pallet can be reduced, and the manufacturing cost of the pallet can be lowered. At the same time, it can also effectively reduce scratches on the bottom surface of the battery cells caused by friction between the bottom surface of the battery cells and the surface of the pallet.

[0037] Based on the above considerations, the inventors, after in-depth research, designed a battery cell module stacking device. By setting a support mechanism in the stacking device, the battery cells are placed on the support mechanism. By moving a pressing mechanism along the axial direction of the support mechanism, multiple battery cells are compressed into a battery cell module, and the battery cell module is transferred to a tray. The battery cell module is then transported to the next process via the tray. The compression process of the battery cell module does not need to be performed on the unloading tray, thereby reducing the length of the tray, lowering the manufacturing cost of the tray, shortening the length of the production line, reducing the footprint of the stacking device, and further facilitating the arrangement of other equipment. At the same time, the reduced length of the tray improves the conveying efficiency of the tray, thereby improving production efficiency.

[0038] Meanwhile, since there is no need to stack them on the pallet, and the battery modules are simply transferred to the pallet for transport, scratches caused by the battery modules sliding on the pallet can be effectively prevented.

[0039] The stacking apparatus and method for battery cell modules provided in this application can be used to extrude and stack multiple battery cells into a battery cell module. The battery cell module can be used in any battery pack or battery, or primary and secondary batteries, such as lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, magnesium-ion batteries, etc. This type of battery is suitable for various battery-using electrical devices, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, electric vehicles, ships, and spacecraft, such as aircraft, rockets, space shuttles, and spacecraft; the battery or battery pack is used to provide electrical energy to the aforementioned electrical devices.

[0040] Firstly, this application proposes a stacking device for battery cell modules. Combined with... Figures 1 to 6 As shown, Figure 1 This is a schematic diagram of the stacking device 1 provided in one embodiment of this application; Figure 2 This is a schematic diagram of the initial position structure of the battery cell 2 stacked on the stacking device 1 according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a battery cell 2 stacked on a stacking device 1 to form a battery cell module 3 according to an embodiment of this application; Figure 4 This is a schematic diagram of the stacking device 1 provided in one embodiment of this application from another angle; Figure 5 This is a schematic diagram of the structure of the battery cell module 3 after it has been transferred to the tray 40 according to one embodiment of this application; Figure 6This is an enlarged structural diagram of part A of the stacking device 1 provided in one embodiment of this application. In some embodiments of this application, the stacking device 1 includes a frame 10, a support mechanism 20, and a pressing mechanism 30. The support mechanism 20 is used to support the battery cells 2, the pressing mechanism 30 is connected to the frame 10, a portion of the pressing mechanism 30 is movable along the axial direction of the support mechanism 20, and is used to compress multiple battery cells 2 into a battery cell module 3. A tray 40 is disposed on the frame 10 in a manner that allows it to move relative to the frame 10, and is used to support the battery cell module 3.

[0041] Specifically, the stacking device 1 is used in the production process of the battery cell module 3 to stack multiple battery cells 2 together by extrusion to form the battery module 3. The frame 10 constitutes the basic structure of the stacking device 1, supporting the entire stacking device 1. Other structural components of the stacking device 1 can be respectively mounted on the frame 10. The support mechanism 20 supports the battery cells 2, allowing them to be extruded on the support mechanism 20. The clamping mechanism 30 provides a certain clamping force and clamps multiple battery cells 2, causing them to stack together under the clamping force of the clamping mechanism 30 to form the battery cell module 3. The axial direction of the support mechanism 20 is the extension direction of the support mechanism 20, i.e., as shown in the figure. Figure 1 The stacking device is shown along its length. In this application, "cell 2" refers to a single battery cell, and "cell module 3" refers to a battery module. A single battery cell is the smallest unit that makes up a battery module or battery pack. A battery module may include multiple single battery cells, which can be connected in series, parallel, or a combination of both to form a battery module. Multiple battery modules can then be connected in series, parallel, or a combination of both to form a battery. In some embodiments of this application, multiple cells 2 are stacked along the length of the stacking device 1 on the support mechanism 20, with the large surfaces of any two adjacent cells 2 in the stacked cell module 3 facing each other. The length of a single cell 2 used to form the cell module 3 is perpendicular to the length of the stacking device 1, the width of the cell 2 is parallel to the length of the stacking device 1, the height of the cell 2 is parallel to the height of the stacking device 1, and the outline dimension of the cell 2 in the length direction is greater than the outline dimension in the width direction. The tray 40 is a disc-shaped structure used to carry the cell module 3 and can move relative to the frame 10, thereby transporting the cell module 3 to the next process.

[0042] In the technical solution of this application, by setting a support mechanism 20, the battery cell 2 is placed on the support mechanism 20. By moving the pressing mechanism 30 along the axial direction of the support mechanism 20, multiple battery cells 2 are squeezed into a battery cell module 3, and the battery cell module 3 is transferred to a tray 40. The battery cell module 3 is then transported to the next process through the tray 40. The squeezing process of the battery cell module 3 does not need to be operated on the tray 40, thereby reducing the length of the tray 40, reducing the manufacturing cost of the tray 40, and shortening the length of the production line, thereby reducing the footprint of the stacking device 1 and further facilitating the arrangement of other equipment.

[0043] Meanwhile, since there is no need to stack them on the tray 40, and the battery module 3 is only transferred to the tray 40 for transport, scratches caused by the battery module 3 sliding on the tray 40 can be effectively prevented.

[0044] In some embodiments of this application, combined with Figures 1 to 3 As shown, the support mechanism 20 includes a first support member 21 and a second support member 22 arranged in parallel. The first support member 21 and the second support member 22 are slidably connected to the frame 10, and the sliding direction is perpendicular to the axial direction of the support mechanism 20, so that the first support member 21 and the second support member 22 are relatively close or relatively far apart.

[0045] Specifically, the first support member 21 and the second support member 22 are used to support the battery cell 2 on both sides of the battery cell 2, and the first support member 21 and the second support member 22 together form a support mechanism. To ensure that the first support member 21 and the second support member 22 can simultaneously support multiple battery cells 3, the first support member 21 and the second support member 22 are arranged in parallel. The direction perpendicular to the axial direction of the support mechanism 20 is the width direction of the stacking device 1.

[0046] By slidably connecting the first support member 21 and the second support member 22 to the frame 10, when the length of the battery cell 2 is large, the first support member 21 and the second support member 22 can be controlled to be relatively far apart, thereby increasing the distance between the first support member 21 and the second support member 22 to support the battery cell 2 with a larger length. When the length of the battery cell 2 is small, the first support member 21 and the second support member 22 can be controlled to be relatively close together, thereby decreasing the distance between the first support member 21 and the second support member 22 to support the battery cell 2 with a smaller length. Thus, the distance between the first support member 21 and the second support member 22 can be adjusted according to the length of the battery cell 2 to support battery cells 2 with different lengths.

[0047] In some embodiments of this application, combined with Figure 1 , Figure 2 and Figure 7 As shown, Figure 7 This is an enlarged structural diagram of part B of the stacking device 1 provided in one embodiment of this application. The stacking device 1 also includes a telescopic mechanism, which is connected to the frame 10. The first support member 21 and the second support member 22 are respectively connected to the telescopic mechanism and move relatively closer or further apart under the action of the telescopic mechanism.

[0048] Specifically, the telescopic mechanism can reciprocate along the width direction of the stacking device 1. The driving end of the telescopic mechanism is connected to the first support member 21 and the second support member 22 respectively, thereby driving the first support member 21 and the second support member 22 to move closer or further apart.

[0049] By controlling the movement of the first support member 21 and the second support member 22 relative to each other or relatively far apart through the telescopic mechanism, the automation level of the stacking device 1 can be effectively improved.

[0050] In some embodiments of this application, again in conjunction with Figure 1 , Figure 2 and Figure 7 As shown, the telescopic mechanism includes a first driving member 51 and a second driving member (not shown in the figure). The first driving member 51 is driven to the first support member 21, and the second support member 22 is driven to the second driving member.

[0051] Specifically, the driving end of the first driving member 51 is connected to the first support member 21, and is used to drive the first support member 21 to move closer to or away from the second support member 22. The driving end of the second driving member is connected to the second support member 22, and is used to drive the second support member 22 to move closer to or away from the first support member 21. In some embodiments of this application, the first driving member 51 and the second driving member are respectively located at both ends of the frame 10 along its length, thereby effectively utilizing the space on the frame 1. The first driving member 51 and the second driving member can each be a driving cylinder.

[0052] By controlling the first support member 21 and the second support member 22 respectively by the first drive member 51 and the second drive member, the automation level of the stacking device 1 can be further improved, and some asymmetrical battery cells 2 can be supported so that the center of the asymmetrical battery coincides with the center of the frame 10.

[0053] In some embodiments of this application, the telescopic mechanism may be configured as a single driving member, with driving ends on both sides of the driving member. The driving ends on both sides are connected to the first support member 21 and the second support member 22, respectively. Thus, the first support member 21 and the second support member 22 are driven to move simultaneously by a single driving member, thereby ensuring the synchronicity of the movement of the first support member 21 and the second support member 22.

[0054] In some embodiments of this application, combined with Figures 1 to 6As shown, the tray 40 is mounted on the frame 10 in a relatively slidable manner. When the first support member 21 and the second support member 22 are spaced apart and form a first opening 23, the tray 40 can slide to the bottom of the support mechanism 20 and be positioned directly opposite the first opening 23.

[0055] Specifically, the tray 40 can be positioned below the support mechanism 20 during the sliding process. Multiple rotating drums can be spaced apart on the frame 10, and the tray 40 is placed on these drums. As the drums rotate, the tray 40 can slide relative to the frame 10 along the rotation direction of the drums. After multiple battery cells 2 are compressed and stacked to form a battery cell module 3, the battery cell module 3 needs to be transferred to the tray 40. At this time, the first support member 21 and the second support member 22 are controlled to move away from each other, forming a first opening 23 between them. The opening size of the first opening 23 is larger than the cross-sectional size of the battery cell module 3, so that the battery cell module 3 is placed on the tray 40, which is directly opposite the first opening 23, thereby completing the transfer of the battery cell module 3.

[0056] In some embodiments of this application, in order to facilitate the setting of the tray 40 and the transport of the battery cell module 3, the tray 40 can slide along the length direction of the stacking device 1.

[0057] Since only the movement of the battery module 3 along the height of the frame 10 needs to be controlled during the transfer of the battery module 3 to the tray 40, large-scale movement or rotation of the battery module 3 is not required. This facilitates the transfer of the battery module 3 to the tray 40 below, and then the battery module 3 is transported to the next process via the tray 40. At the same time, it can reduce the space occupancy rate of the battery module 3 during the transfer process, further reducing the space occupancy rate of the stacking device 1, and facilitating the arrangement of other equipment.

[0058] In some embodiments of this application, combined with Figure 1 , Figure 3 , Figure 8 and Figure 9 As shown, Figure 8 This is an enlarged structural diagram of section C of the stacking device 1 provided in one embodiment of this application; Figure 9 This is a schematic diagram of the structure of the tray 40 provided in one embodiment of this application. The stacking device 1 also includes at least one tray locking mechanism 60. At least one clamping component 43 is provided on the tray 40. The tray locking mechanism 60 can be connected to the clamping component 43 and is used to drive the clamping component 43 to move so that the clamping component 43 clamps or releases the battery cell module 3 on the tray 40.

[0059] Specifically, a clamping assembly 43 is provided on the tray 40. The clamping assembly 43 is used to clamp and fix the battery cell module 3 transferred to the tray 40, preventing the battery cell module 3 from falling off during the transport process of the tray 40. During the movement of the tray 40, the clamping assembly 43 on the tray 40 can be connected to the tray locking unit 60, thereby driving the clamping assembly 43 to move through the tray locking unit 60. In one embodiment of this application, a tray locking unit 60 is provided at each end of the length direction of the frame 10, and correspondingly, a clamping assembly 43 is also provided at each end of the length direction of the tray 40. Thus, the clamping assembly 43 is driven to move through the tray locking units 60 at both ends, jointly clamping and fixing the battery cell module 3 on the tray 40. The length direction of the frame 10 and the length direction of the tray 40 are the same as the length direction of the stacking device 1.

[0060] By connecting the tray locking mechanism 60 to the clamping component 43 of the tray 40, the movement of the clamping component 43 can be controlled to clamp the battery module 3 on the tray 40, thereby fixing the position of the battery module 3 relative to the tray 40, and thus transporting the battery module 3 to the next process through the tray 40, preventing the battery module 3 from falling off during the transport process.

[0061] In some embodiments of this application, combined with Figure 1 , Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10 As shown, Figure 10 This is an enlarged structural diagram of section D of the tray 40 provided in one embodiment of this application. The tray locking mechanism 60 includes a third driving member 611, a fourth driving member 612, and a locking member 63. The locking member 63 can be connected to the clamping assembly 43. The locking member 63 moves vertically under the driving action of the third driving member 611, and the locking member 63 drives the clamping assembly 43 to move together along the length direction of the stacking device 1 under the action of the fourth driving member 612.

[0062] Specifically, the driving end of the third driving member 611 is connected to the fourth driving member 612, or connected to the fourth driving member 612 via a connector, and is used to drive the fourth driving member 612 to move vertically, that is, along the height direction of the stacking device 1. The driving end of the fourth driving member 612 is connected to the locking member 63, and is used to drive the locking member 63 to move along the length direction of the stacking device 1. The locking member 63 is used to connect and fix the clamping assembly 43, thereby driving the clamping assembly 43 to move together along the length direction of the stacking device 1. The third driving member 611 and the fourth driving member 612 can each be a driving cylinder.

[0063] In some embodiments of this application, the tray 40 includes a base plate 41, with a clamping assembly 43 at each end of the base plate 41 along its length. Each clamping assembly 43 includes a connecting plate 431, a mounting base 432, a sliding rod 433, and a spring 434. Two mounting bases 432 are spaced apart on the surface of the base plate 41, and a sliding rod 433 passes through each mounting base 432. The sliding rod 433 is movable along the length of the tray 40. One end of the sliding rod 433 near the outer edge of the base plate 41 is connected to the connecting plate 431, thereby causing the sliding rod 433 to move together via the connecting plate 431. The other end of the sliding rod 433 is connected to the mounting base 432, and the spring 434 is compressed during the movement of the sliding rod 434 towards the outer side of the base plate 41.

[0064] The pallet locking mechanism 60 includes a first locking assembly 61, a second locking assembly 62, and a locking member 63. The second locking assembly 62 has the same structure as the first locking assembly 61. For ease of description, this application only uses the first locking assembly 61 as an example. The first locking assembly 61 includes a third driving member 611, a fourth driving member 612, and a support plate 613. The third driving member 611 is mounted on the frame 10, and its driving end is connected to the support plate 613. The fourth driving member 612 is mounted on the support plate 613, and its driving end is connected to the locking member 63. When the driving end of the third driving member 611 moves, it can drive the fourth driving member 612 and the locking member 63 to move together along the height direction of the stacking device. When the driving end of the fourth driving member 62 moves, it can drive the locking member 63 to move along the length direction of the stacking device 1. The locking member 63 is a strip-shaped plate structure with a notch. When the locking member 63 is connected to the clamping assembly 43, the notch on the locking member 63 fits perfectly over the outside of the two sliding rods 433 on the connecting plate 431. During the movement of the locking member 63 toward the outside of the tray 40, it can abut against the connecting plate 431 and drive the connecting plate 431 and the sliding rods 433 to move together toward the outside of the tray 41.

[0065] After multiple battery cells 2 are compressed and stacked into a battery cell module 3, the battery cell module 3 needs to be transferred to the tray 40. The locking member 63 is driven upward by the third drive member 611, providing clearance for the tray 40 to move along the length of the stacking device 1. The tray 40 moves from below the locking member 63 at one end to below the support mechanism 20, and is positioned directly opposite the first opening 23. At this time, the locking member 63 is driven downward by the third drive member 611, and is fitted onto the slide bar 433. The locking member 63 is driven away from the tray 40 by the fourth drive member 612. During the movement, the locking member 63 abuts against the connecting plate 431 and drives the connecting plate 431 away from the tray 40, thereby increasing the distance between the slide bars 433 at both ends of the tray 40, thus enabling the battery cell module 3 to be transferred to the tray 40 through the first opening 23. After the battery cell module 3 is transferred to the tray 40, the fourth driving member 612 drives the locking member 63 to move towards the center of the tray 40, and finally the slide rods 433 at both ends abut against the two sides of the battery cell module 3. At this time, the spring 434 still has a certain elasticity due to deformation, so the spring 434 and the slide rods 433 on both sides of the battery cell module 3 jointly squeeze the battery cell module 3, fixing the battery cell module 3 on the tray 40. Since there is no need to squeeze multiple battery cells 3 on the tray 40, the size of the tray 40 can be appropriately reduced. And the clamping mechanism 43 is only used to fix the battery cell module 3, so the displacement of the slide rod 433 and the extension of the spring 434 on the clamping mechanism 43 can also be appropriately reduced, thereby further reducing the manufacturing cost of the tray 40.

[0066] The locking member 63 is driven to move vertically by the third driving member 611, which can avoid interference with the pallet 40 during its movement and prevent it from affecting the normal movement of the pallet 40. The locking member 63 is driven by the fourth driving member 612 to move together with the clamping assembly 43 along the length of the stacking device 1, which allows the battery cell module 3 to be smoothly placed on the pallet 40 and fixed by the clamping assembly 43, thereby fixing the position of the battery cell module 3 relative to the pallet 40.

[0067] In some embodiments of this application, combined with Figure 1 , Figure 3 , Figure 9 and Figure 11 As shown, Figure 11 This is a schematic diagram of the lifting mechanism 70 provided in one embodiment of this application. The stacking device 1 also includes a lifting mechanism 70, which is connected to the frame 10. The lifting mechanism 70 includes at least a top plate 71 that can be lifted and moved. A second opening 42 is provided through the tray 40. The top plate 71 can pass through the second opening 42 and the first opening 23 in sequence and abut against the battery cell module 3.

[0068] Specifically, the top plate 71 is a flat plate structure that can move up and down along the height direction of the stacking device 1, thereby supporting the battery cell module 3 and driving the battery cell module 3 to move up and down together along the height direction of the stacking device 1.

[0069] After multiple battery cells 2 are compressed into a battery cell module 3, the top plate 71 of the lifting mechanism 70 is controlled to pass through the second opening 42 and the first opening 23 in sequence and abut against the bottom surface of the battery cell module 3. The top plate 71 supports the battery cell module 3. Then, the first support member 21 and the second support member 22 are controlled to move away from each other and the first opening 23 is expanded. Then, the top plate 71 is controlled to descend and drive the battery cell module 3 through the first opening 23, so that the battery cell module 3 is finally placed on the tray 40 and supported by the tray 40, which facilitates the transfer of the battery cell module 3.

[0070] In some embodiments of this application, again in conjunction with Figure 1 , Figure 3 , Figure 9 and Figure 11 As shown, along the axial direction of the support mechanism 20, the length of the top plate 71 is smaller than the length of the second opening 42, but larger than the length of the battery cell module 3.

[0071] Specifically, the substrate 41 of the tray 40 has a second opening 42 at its center, so that the top plate 71 passes through the second opening 42, thereby supporting the battery cell module 3 and transferring the battery cell module 3 onto the tray 40. The length direction of the second opening 42 is consistent with the length direction of the stacking device 1.

[0072] In some embodiments of this application, support seats 44 are respectively provided on both sides of the second opening 42 on the substrate 41 in the width direction. The support seats 44 are also L-shaped mechanisms, and the battery cell module 3 is supported by the support seats 44 on both sides. When the opening size between the two support seats 44 is larger than the opening size on the substrate 41, the movement of the top plate 71 is limited by the opening size on the substrate 41. At this time, the opening on the substrate 41 is the second opening 42. When the opening size between the two support seats 44 is smaller than the opening size on the substrate 41, the movement of the top plate 71 is limited by the opening size between the two support seats 44. At this time, the opening between the two support seats 44 is the second opening 42.

[0073] Setting the length of the top plate 71 to be smaller than the length of the second opening 42 ensures that the top plate 71 can pass smoothly through the second opening 42 during the lifting process. Setting the length of the top plate 71 to be larger than the length of the battery cell module 3 ensures that the battery cell module 3 is fully supported within its length range, preventing it from falling off the tray 40 due to lack of support underneath.

[0074] In some embodiments of this application, again in conjunction with Figure 1 , Figure 3 , Figure 9 and Figure 11 As shown, along the direction perpendicular to the axial direction of the support mechanism 20, the width of the second opening 42 is smaller than the width of the battery cell module 3.

[0075] Specifically, the width direction of the second opening 42 is consistent with the width direction of the stacking device 2.

[0076] Since the length of the top plate 71 is smaller than the length of the second opening 42 and larger than the length of the battery cell module 3, the length of the battery cell module 3 is smaller than the length of the second opening 42. By setting the width of the second opening 42 to be smaller than the width of the battery cell module 3, the battery cell module 3 can be supported by the partial structures on both sides of the width direction of the second opening 42, effectively preventing the battery cell module 3 from falling through the second opening 42.

[0077] In some embodiments of this application, again in conjunction with Figure 1 , Figure 3 , Figure 9 and Figure 11 As shown, the lifting mechanism 70 also includes a mounting plate 72 and a fifth drive component 73. The mounting plate 72 is connected to the frame 10, and the fifth drive component 73 is fixed to the mounting plate 72 and driven to connect with the top plate 71 to drive the top plate 71 to move up and down.

[0078] Specifically, the mounting plate 72 is used to fix the lifting mechanism 70 as a whole to the frame 10. The fifth driving component 73 is fixed to the mounting plate 72, and the driving end of the fifth driving component 73 is drivenly connected to the top plate 71, thereby driving the top plate 71 to move along the height direction of the stacking device 1. The fifth driving component 73 is a driving cylinder.

[0079] In some embodiments of this application, the lifting mechanism 70 includes a top plate 71, a mounting plate 72, a fifth drive member 73, and a guide rod 74. The mounting plate 72 is connected to the frame 10, thereby fixing the lifting mechanism 70 as a whole to the frame 10. The fifth drive member 73 is mounted on the mounting plate 72, and the drive end of the fifth drive member 73 passes through the mounting plate 72 and is connected to the top plate 71 (the drive end is not fully connected to the top plate 71 in the figures), for driving the top plate 71 to reciprocate along the height direction of the stacking device 1. The guide rod 74 is capable of telescopic movement along its own axis. One end of the guide rod 74 is fixed to the frame 10, and the other end of the guide rod 74 passes through the mounting plate 72 and is connected to the top plate 71, thereby ensuring the linear movement of the top plate 71. Furthermore, side plates 75 can be provided on both sides of the top plate 71. The distance between the side plates 75 is slightly larger than the length of the battery cell module 3. So that when the battery cell module 3 is placed on the top plate 71 between the side plates 75, the side plates 75 can prevent the battery cell module 3 from falling off the top plate 71.

[0080] The lifting mechanism 70 is fixed to the frame 10 by the mounting plate 72, and the top plate 71 is driven to move up and down by the fifth drive component 73, which can effectively support the battery cell module 3 and transfer the battery cell module 3 to the tray 40.

[0081] In some embodiments of this application, combined with Figure 1 , Figure 2 , Figure 3 and Figure 12 As shown, Figure 12 This is a schematic diagram of the structure of the brush mechanism 80 provided in one embodiment of this application. The stacking device 1 also includes the brush mechanism 80, which includes at least a brush 81. The brush 811 is movable along the axial direction of the support mechanism 20 and is used to clean the support mechanism 20.

[0082] Specifically, the brush 81 is a flexible component with a certain cleaning function. The brush 81 can move along the length direction of the stacking device 1 to clean the surfaces of the first support 71 and the second support 72, preventing impurities or dust from adhering to the surfaces of the first support 71 and the second support 72, and will not scratch the surface of the support mechanism 20.

[0083] In some embodiments of this application, the brush mechanism 81 further includes a seventh driving member 82, which can be a servo electric cylinder. The seventh driving member 82 is mounted on the frame 10, and a second sliding plate 83 is provided on the seventh driving member 82. The brush 81 is provided on the second sliding plate 83. Under the driving action of the seventh driving member 82, the second sliding plate 83 can drive the brush 81 to move together along the axial direction of the seventh driving member 82, that is, along the length direction of the stacking device 1, thereby cleaning the surfaces of the first support member 21 and the second support member 22.

[0084] By setting up a brush 81 and moving the brush 81 along the axial direction of the support mechanism 20, the surface of the support mechanism 20 can be effectively cleaned, removing dust or particles from the support mechanism 20 and preventing contamination and scratches to the battery cell 3 during the extrusion process.

[0085] In some embodiments of this application, combined with Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the pressing mechanism 30 includes a sixth driving member 31 and a pressure plate assembly. The sixth driving member 32 is used to drive the pressure plate assembly to move along the axial direction of the support mechanism 20. The pressure plate assembly includes at least a pressure plate 33, which is used to compress the battery cell 2.

[0086] Specifically, the pressure plate 33 is a plate structure with a large surface area, and the large surface area of ​​the pressure plate 33 is used to adhere to and compress the battery cell 2. The sixth driving member 31 can drive the pressure plate 33 to move along the length direction of the stacking device 1, thereby compressing and stacking multiple battery cells 2 into a battery cell module 3. The sixth driving member 31 can be a servo electric cylinder.

[0087] In some embodiments of this application, the pressing mechanism 30 includes a sixth driving member 31, a first sliding plate 32, and a pressure plate 33. The sixth driving member 31 is mounted on the frame 10, and the first sliding plate 32 is provided on the sixth driving member 31. The pressure plate 33 is connected to the first sliding plate 32. Under the driving action of the sixth driving member 31, the first sliding plate 32 can drive the pressure plate 33 to move together along the axial direction of the sixth driving member 31, that is, along the length direction of the stacking device 1, thereby pressing multiple battery cells 2 and stacking them into a battery cell module 3. Furthermore, an elastic layer, such as rubber, can be provided on the surface of the pressure plate 33 facing the battery cell module 1, thereby further reducing stress concentration during the pressing process of the pressure plate 33 on the battery cells 2 and avoiding deformation or damage to the battery cells 2.

[0088] By pressing the battery cell 2 with the pressure plate 33, multiple battery cells 2 can be pressed into a battery cell module 3. At the same time, the pressure plate 33 has a large force-bearing surface, which can prevent the battery cell 2 from being damaged due to stress concentration during the pressing process.

[0089] In some embodiments of this application, combined with Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, the first support member 21 includes a first support base plate 211 and a first support side plate 212, the first support base plate 211 and the first support side plate 212 are connected to form an L-shaped structure; and / or, the second support member 22 includes a second support base plate and a second support side plate, the second support base plate and the second support side plate are connected to form an L-shaped structure.

[0090] Specifically, the first support member 21 includes a first support base plate 211 and a first support side plate 212 as an example. The first support base plate 211 is arranged horizontally to support the battery cell 2 from the bottom. The first support side plate 212 is arranged vertically to support the battery cell 2 from the side, thereby providing stable support for the battery cell 2 and the battery cell module 3 through the L-shaped structure, and preventing the battery cell module 3 from shifting between the first support member 21 and the second support member 22.

[0091] By setting the first support member 21 and / or the second support member 22 into an L-shaped structure, and by using the L-shaped structure to support the bottom surface of the battery cell 21 and to position the side surface of the battery cell 21, it is possible to ensure that multiple battery cells 2 are aligned along the same axial direction, thereby ensuring that the shape of the extruded battery cell module 3 is regular.

[0092] Secondly, this application proposes a method for stacking battery cell modules 3. Combined with... Figures 1 to 6 ,as well as Figure 13 As shown, Figure 13 This is a flowchart of a stacking method provided in one embodiment of this application. In some embodiments of this application, the stacking method is implemented according to the stacking apparatus 1 of any of the above embodiments, and includes the following steps: Multiple battery cells 2 are stacked on the support mechanism 20 along the axial direction of the support mechanism 20, and any two adjacent battery cells 2 are spaced apart. The driving pressing mechanism 30 moves along the axial direction of the support mechanism 20 and squeezes multiple battery cells 2, so that the multiple battery cells 2 are stacked into a battery cell module 3; Transfer the battery cell module 3 onto the tray 40.

[0093] The connection relationship and working process between the support mechanism 20, the pressing mechanism 30, the tray 40 and the battery cell 2 have been disclosed in the description of the stacking device 1 above, and will not be repeated here.

[0094] Since the stacking method of this application is implemented according to the stacking device 1 of any of the above embodiments, it can achieve the same technical effect, and will not be described in detail here.

[0095] In some embodiments of this application, combined with Figures 1 to 9 As shown, after the step of stacking multiple battery cells 2 into a battery cell module 3, the following steps are also included: The drive lifting mechanism 70 lifts the battery cell module 3, causing the bottom surface of the battery cell module 3 to separate from the support mechanism 20; The drive telescopic mechanism moves the first support member 21 and the second support member 22 away from each other, and makes the opening size of the first opening 23 between the first support member 21 and the second support member 22 larger than the cross-sectional size of the battery cell module 3. The lifting mechanism 70 drives the battery cell module 3 to descend together, and the lifting mechanism 70 passes through the second opening 42 on the tray 40, so that the bottom surface of the battery cell module 3 abuts against the tray 40, and the tray 40 supports the battery cell module 3. The tray 40 containing the battery cell module 3 is transported to the next process.

[0096] Specifically, the fifth driving member 73 drives the top plate 71 to move upward along the height direction of the stacking device 1 and abut against the bottom surface of the cell module 3. The top plate 71 is then driven upward, causing the cell module 3 to detach from the support mechanism 20. To facilitate the top plate 71 driving the cell module 3 downward and through the first opening 23, the telescopic mechanism drives the first support member 21 and the second support member 22 to move away from each other, thereby increasing the area of ​​the first opening 23. This allows the top plate 71 to drive the cell module 3 downward and through the first opening 23. The top plate 71 is then driven downward and through the second opening 42. After passing through the second opening 42, the bottom surface of the cell module 3 abuts against the tray 40, which supports the cell module 3, transferring it from the support mechanism 20 to the tray 40. The tray 40 is then driven to move along the length direction of the stacking device 1, moving to the conveying device 4, and the conveying device 4 transports the tray 40 and the cell module 3 to the next process.

[0097] The stacking method of this application further includes the following steps: The tray locking mechanism 60 drives the clamping assembly 43 of the tray 40 to move outwards from the tray 40, thereby placing the battery module 3 on the tray 40. Then, the tray locking mechanism 60 drives the clamping assembly 43 to move towards the center of the tray 40, where the battery module 3 is clamped and fixed by the spring 434 and the slide bar 433, thus fixing the battery module 3 to the tray 40. The battery module 3 can then be transferred via the tray 40. The connection relationship and control process between the tray locking mechanism 60 and the clamping assembly 43 have been disclosed in the above description of the stacking device 1 and will not be repeated here.

[0098] 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.

[0099] In one embodiment of this application, the stacking device 1 includes a frame 10, and a support mechanism 20 is provided above the frame 10. The support mechanism 20 includes a first support member 21 and a second support member 22 disposed opposite to each other, wherein both the first support member 21 and the second support member 22 are L-shaped structures. The first support member 21 is connected to a first drive member 51, and the second support member 22 is connected to a second drive member. Under the control of the first drive member 51 and the second drive member, the first support member 21 and the second support member 22 can move relatively closer or relatively farther apart, forming a first opening 23 between the first support member 21 and the second support member 22. The bottom ends of multiple battery cells 2 are respectively disposed on the first support member 21 and the second support member 22. A pressing mechanism 30 is also provided above the frame 10. The pressing mechanism 30 includes a sixth drive member 31, a first sliding plate 32, and a pressure plate 33, wherein the sixth drive member 31 is connected to the frame 10, and the first sliding plate 32 can drive the pressure plate 33 to move together along the length direction of the stacking device 1, thereby pressing multiple battery cells 2 into a battery cell module 3 by the pressure plate 33. Below the support mechanism 20, a slidable tray 40 is provided, with a second opening 42 on the tray 40. The stacking device 1 also includes a lifting mechanism 70, which includes a top plate 71, a mounting plate 72, a fifth drive member 73, and a guide rod 74. The mounting plate 72 is connected to the frame 10, and the fifth drive member 73 is located on the mounting plate 72. Under the driving action of the fifth drive member 73, the top plate 71 moves up and down along the height direction of the stacking device 1, thereby passing through the first opening 23 and the second opening 42, and transferring the battery cell module 3 on the support mechanism 20 to the tray 40. The stacking device 1 also includes a tray locking mechanism 60, which includes a first locking mechanism 61 and a second locking mechanism 62, with a locking member 63 between the first locking mechanism 61 and the second locking mechanism 62. The second locking mechanism 62 has the same structure as the first locking mechanism 61. The first locking mechanism 61 includes a third driving member 611, a fourth driving member 612, and a support plate 613. The driving end of the third driving member 611 is connected to the support plate 613 and is used to drive the support plate 613 to move up and down along the height direction of the stacking device 1. The fourth driving member 612 is disposed on the support plate 613, and the driving end of the fourth driving member 612 is connected to the locking member 63 and is used to drive the locking member 63 to move along the length direction of the stacking device 1. The tray 40 also includes a base plate 41 and a clamping assembly 43 disposed on the base plate 41. The clamping assembly 43 includes a connecting plate 431, a mounting base 432, a slide bar 433, and a spring 434. Two mounting bases 432 are spaced apart on the surface of the substrate 41. A slide rod 433 is passed through each of the two mounting bases 432. The slide rod 433 can move along the axial direction of the tray 40. One end of the slide rod 433 near the outer edge of the substrate 41 is connected to the connecting plate 431. A spring 434 is provided between the other end of the slide rod 433 and the mounting base 432. The spring 434 is compressed during the movement of the slide rod 433 toward the outer direction of the substrate 41.The locking member 63 is sleeved on the outside of the slide bar 433 and abuts against the connecting plate 431 under the drive of the fourth driving member 612, thereby driving the connecting plate 431 and the slide bar 433 to move together. A brush mechanism 80 is also provided above the frame 10. The brush mechanism 80 includes a seventh driving member 82, which is mounted on the frame 10. A second slide plate 83 is provided on the seventh driving member 82, and a brush 81 is provided on the second slide plate 83. Under the driving action of the seventh driving member 82, the second slide plate 83 can drive the brush 81 to move together along the length direction of the stacking device 1, thereby cleaning the surfaces of the first support member 21 and the second support member 22.

[0100] In some embodiments of this application, the stacking method includes the following steps: The brush mechanism 80 cleans the surface of the support mechanism 20. Multiple battery cells 2 are stacked along the axial direction of the support mechanism 20 on the first support member 21 and the second support member 22 of the support mechanism 20, and any two adjacent battery cells are spaced apart. The driving clamping mechanism 30 moves along the axial direction of the support mechanism 20 and squeezes multiple battery cells 2, causing the multiple battery cells to be stacked into a battery cell module. The drive lifting mechanism 70 lifts the battery cell module 3, causing the bottom surface of the battery cell module 3 to separate from the support mechanism 20; The drive telescopic mechanism moves the first support member 21 and the second support member 22 away from each other, and makes the opening size of the first opening 23 between the first support member 21 and the second support member 22 larger than the cross-sectional size of the battery cell module 3. The drive tray locking mechanism 60 moves the clamping assembly 43 toward the outside of the tray 40; The lifting mechanism 70 drives the battery cell module 3 to descend together, and the lifting mechanism 70 passes through the second opening 42 on the tray 40, so that the bottom surface of the battery cell module 3 abuts against the tray 40, and the tray 40 supports the battery cell module 3. The drive tray locking mechanism 60 moves the clamping assembly 43 toward the center of the tray 40 and clamps and fixes the battery cell module 3. The tray 40 containing the battery cell module 3 is transferred to the next process.

[0101] 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 various 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 stacking device for battery cell modules, characterized in that, include: frame; Support mechanism, the support mechanism being used to support the battery cell; A pressing mechanism is connected to the frame, and a portion of the pressing mechanism is movable along the axial direction of the support mechanism and is used to extrude multiple battery cells into a battery cell module. A tray is disposed on the rack in a manner movable relative to the rack and is used to support the battery cell module.

2. The stacking device for battery cell modules according to claim 1, characterized in that, The support mechanism includes a first support member and a second support member arranged in parallel. The first support member and the second support member are slidably connected to the frame, and the sliding direction is perpendicular to the axial direction of the support structure, so that the first support member and the second support member are relatively close to or relatively far apart.

3. The stacking device for battery cell modules according to claim 2, characterized in that, The stacking device further includes a telescopic mechanism connected to the frame. The first support member and the second support member are respectively connected to the telescopic mechanism and move relatively closer or further apart under the action of the telescopic mechanism.

4. The stacking device for battery cell modules according to claim 3, characterized in that, The tray is slidably disposed on the frame. When the first support member and the second support member are spaced apart and form a first opening, the tray can slide to the bottom of the support mechanism and be positioned directly opposite the first opening.

5. The stacking device for battery cell modules according to claim 4, characterized in that, The stacking device further includes at least one tray locking mechanism. The tray is provided with at least one clamping component. The tray locking mechanism can be connected to the clamping component and is used to drive the clamping component to move so that the clamping component clamps or releases the battery cell module on the tray.

6. The stacking device for battery cell modules according to claim 5, characterized in that, The clamping assembly includes a connecting plate, a mounting base, a slide rod, and a spring; two mounting bases are spaced apart on the substrate surface of the tray, and a slide rod is passed through each of the two mounting bases. The slide rod is capable of moving along the axial direction of the tray. One end of the slide rod near the outer edge of the substrate is connected to the connecting plate, and the other end of the slide rod is connected to the mounting base with the spring, which is compressed during the movement of the slide rod toward the outer direction of the substrate.

7. The stacking device for battery cell modules according to claim 6, characterized in that, The tray locking mechanism includes a third driving member, a fourth driving member, and a locking member. The locking member can be connected to the clamping assembly. The locking member moves vertically under the driving action of the third driving member, and the locking member drives the clamping assembly to move together along the axial direction of the support mechanism under the action of the fourth driving member.

8. The stacking device for battery cell modules according to claim 7, characterized in that, The locking member is a strip-shaped plate structure with a notch. The notch on the locking member can be fitted onto the outside of the slide rod of the clamping assembly. During the movement of the locking member toward the outside of the tray, it can abut against the connecting plate of the clamping assembly and drive the connecting plate and the slide rod to move together.

9. The stacking device for battery cell modules according to claim 4, characterized in that, The stacking device further includes a lifting mechanism connected to the frame. The lifting mechanism includes at least a top plate that can be lifted and moved. A second opening is provided through the tray. The top plate can pass through the second opening and the first opening in sequence and abut against the battery cell module.

10. The stacking device for battery cell modules according to claim 9, characterized in that, Along the axial direction of the support mechanism, the length of the top plate is less than the length of the second opening, but greater than the length of the battery cell module.

11. The stacking device for battery cell modules according to claim 9, characterized in that, The lifting mechanism also includes a mounting plate and a fifth driving component. The mounting plate is connected to the frame, and the fifth driving component is fixed to the mounting plate and driven to drive the top plate to move up and down.

12. The stacking device for battery cell modules according to claim 9, characterized in that, The lifting mechanism further includes a guide rod, one end of which is fixed to the frame and the other end is connected to the top plate to ensure the linear movement of the top plate; and / or, the top plate is provided with side plates on both sides, and the distance between the side plates on both sides is greater than the length of the battery cell module to prevent the battery cell module from falling off the top plate.

13. The stacking device for battery cell modules according to any one of claims 1-12, characterized in that, The stacking device further includes a brush mechanism, which includes at least a brush that is movable along the axial direction of the support mechanism and is used to clean the support mechanism.

14. The stacking device for battery cell modules according to any one of claims 1-12, characterized in that, The pressing mechanism includes a sixth driving member and a pressure plate assembly. The sixth driving member is used to drive the pressure plate assembly to move along the axial direction of the support mechanism. The pressure plate assembly includes at least a pressure plate, which is used to compress the battery cell.

15. The stacking device for battery cell modules according to any one of claims 1-12, characterized in that, The first support member includes a first support base plate and a first support side plate, the first support base plate and the first support side plate being connected to form an L-shaped structure; and / or, the second support member includes a second support base plate and a second support side plate, the second support base plate and the second support side plate being connected to form an L-shaped structure.

16. A method for stacking battery cell modules, characterized in that, The stacking apparatus according to any one of claims 1-15 is implemented by comprising the following steps: Multiple battery cells are stacked on the support mechanism along the axial direction of the support mechanism, with any two adjacent battery cells spaced apart. The driving clamping mechanism moves along the axial direction of the support mechanism and squeezes multiple battery cells, causing the multiple battery cells to be stacked into a battery cell module; Transfer the battery cell modules onto the tray.

17. The method for stacking battery cell modules according to claim 16, characterized in that, The step of stacking multiple battery cells into a battery cell module further includes the following steps: The drive lifting mechanism lifts the battery cell module, causing the bottom surface of the battery cell module to separate from the support mechanism; The drive telescopic mechanism moves the first support member and the second support member relatively away from each other, and makes the opening size of the first opening between the first support member and the second support member larger than the cross-sectional size of the battery cell module. The drive lifting mechanism lowers the battery cell module together, and the lifting mechanism passes through the second opening on the tray, so that the bottom surface of the battery cell module abuts against the tray, and the tray supports the battery cell module. The tray containing the battery cell modules is then transported to the next process.

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