Battery cell module extrusion sleeve device

Abstract

This application relates to the field of lithium battery manufacturing equipment technology, and in particular to a cell module extrusion and tape-making device, comprising: a base, two sets of end extrusion mechanisms, two sets of support mechanisms, and a middle extrusion mechanism; the two sets of end extrusion mechanisms are spaced apart on the base along a first direction; the support platforms of the two sets of support mechanisms are arranged on the base along the first direction and located between the two sets of end extrusion mechanisms. When the middle extrusion mechanism is located between the two support platforms, each support platform carries a first cell assembly, and the two sets of end extrusion mechanisms cooperate with the middle extrusion mechanism to extrude the first cell assembly; when the middle extrusion mechanism is away from the two support platforms, the two support platforms cooperate to carry a second cell assembly, and the two sets of end extrusion mechanisms cooperate to extrude the first cell assembly. By controlling the position of the middle extrusion mechanism, it can be applied to cell assemblies of various lengths without the need for additional replacement of support components, thereby improving the assembly efficiency of the cell assembly.

Description

Technical Field

[0001] This application relates to the field of lithium battery manufacturing equipment technology, and in particular to a cell module extrusion sleeve device. Background Technology

[0002] In the production process of battery cell modules, multiple battery cells are first stacked in an orderly manner to form a battery cell assembly. Then, two end plates are fixed at both ends of the battery cell assembly along its length. Finally, a steel strip is placed over the end plates and the battery cell assembly. The steel strip binds the battery cell assembly and the end plates to form a structurally stable whole, thus completing the basic assembly of the battery cell module.

[0003] Before the steel strip sleeve installation process, the battery cell assembly and the end plates at both ends need to be tightly pressed together so that the steel strip can be sleeved over the battery cell assembly and the end plates. In the prior art, this pressing process is usually achieved by two sets of symmetrically arranged pressing mechanisms. The two pressing mechanisms correspond to the two ends of the battery cell assembly along its length. The pressing mechanisms push the end plates to apply pressure to the battery cell assembly, ultimately making the battery cell assembly and the end plates fit tightly together. To ensure the stability of the battery cell assembly during the pressing process, sleepers are fixed between the two pressing mechanisms. The battery cell assembly to be pressed is placed directly on the sleepers, which provide support. At the same time, the drive components of the two pressing mechanisms need to avoid the load-bearing area of ​​the sleepers. Therefore, they are set on the outside of the sleepers along their length. Only the pressing end of the pressing mechanism moves towards the battery cell assembly above the sleepers under the drive of the drive components to complete the pressing action. However, due to the limitation of the extrusion end's movement trajectory by the installation position of the drive component, its travel along the length of the sleeper is strictly limited to the range between the drive component and the sleeper. Battery cells come in various sizes, and the number of cells required for different battery cell modules is not fixed. Therefore, the length of the battery cell assembly formed by each type of cell is not the same. When the length of the battery cell assembly to be extruded is close to the length of the sleeper, the extrusion end can move normally to the end plates at both ends of the battery cell assembly to achieve compression. However, when the length of the battery cell assembly to be extruded is much smaller than the length of the sleeper, the maximum travel of the extrusion end may not be able to reach the end plates at both ends of the battery cell assembly, causing the extrusion mechanism to be unable to apply effective pressure to the battery cell assembly, thus failing to complete the compression process. In this case, it is necessary to replace it with a sleeper that is compatible with the length of the battery cell assembly, which will affect the assembly efficiency of the battery cell module. Utility Model Content

[0004] (a) The problem to be solved by this application is that the existing battery cell module extrusion sleeve device is not applicable to the extrusion of battery cells of various lengths.

[0005] (II) Technical Solution To solve the above-mentioned technical problems, this application provides a battery cell module extrusion sleeve device, which includes: a base, an end extrusion mechanism, a bearing mechanism and an intermediate extrusion mechanism; The end extrusion mechanism is configured as two sets, and the two sets of end extrusion mechanisms are spaced apart on the base along the first direction; The end extrusion mechanism includes a first drive assembly and an end extruder. The end extruders of the two end extrusion mechanisms are arranged opposite to each other. The first drive assembly is connected to the end extruder and is used to drive the end extruder to move along a first direction. The support mechanism is configured as two sets, each including a support platform and a second drive assembly. The upper surface of the support platform is used to support the battery cell assembly. The support platforms of the two sets of support mechanisms are arranged on the base along the first direction and located between the two sets of end pressing mechanisms. The support platform can move relative to the base along the first direction. The second drive assembly is connected to the support platform and is used to drive the support platform to move along the first direction. The periphery of the support platform is provided with several support components, and the support components on the end faces of the first and second support platforms that are close to each other are detachable. The several support components are used to cooperate with the steel strip of the support set on the battery cell assembly. The intermediate extrusion mechanism includes two intermediate extrusion components arranged opposite to each other. The intermediate extrusion mechanism is movably or detachably mounted on the base. When the intermediate extrusion mechanism is located between the support platforms of the two support mechanisms, the two support platforms each support a first battery cell group. The first intermediate extrusion member cooperates with the end extrusion member of the first end extrusion mechanism to extrude a first battery cell group, and the second intermediate extrusion member cooperates with the end extrusion member of the second end extrusion mechanism to extrude a first battery cell group. When the intermediate extrusion mechanism moves away from the two support platforms, the second drive components of the two support mechanisms drive the two support platforms to come together along the first direction, and the two support platforms cooperate to support a second battery cell assembly.

[0006] For a first battery cell assembly whose length is much smaller than the initial interval between the two sets of end extrusion mechanisms, the intermediate extrusion mechanism can be positioned between the support platforms of the two support mechanisms. Each support platform of the two support mechanisms is used to support one first battery cell assembly. The first battery cell assembly is extruded by the cooperation of the end extrusion member of the end extrusion mechanism and the intermediate extrusion member of the corresponding intermediate extrusion mechanism, applying pressure to the first battery cell assembly and the end plates at both ends of the first battery cell assembly, so that the two first battery cell assemblies and the corresponding end plates are in a tight fit. For a second battery cell assembly whose length is similar to the initial interval between the two sets of end extrusion mechanisms, the intermediate extrusion mechanism can be positioned away from the support platforms of the two support mechanisms, and the support platforms of the two support mechanisms can be placed together. The support platforms of the two support mechanisms jointly support one second battery cell assembly. The second battery cell assembly is extruded by the cooperation of the end extrusion members of the two sets of end extrusion mechanisms, applying pressure to the end plates at both ends of the second battery cell assembly and the end plates at both ends of the second battery cell assembly, so that the second battery cell assembly and the end plates at both ends of the second battery cell assembly are in a tight fit. Thus, the cell module extrusion sleeve device can be applied to cell assemblies of various lengths without requiring additional replacement of the support components. This solves the problem in existing technologies where the extrusion end cannot reach the end plate of short cell assemblies, improving the assembly efficiency of cell assemblies. Moreover, when the intermediate extrusion mechanism is located between the support platforms of two support mechanisms, the cell module extrusion sleeve device can simultaneously apply pressure to two sets of cell assemblies, thereby further improving the assembly efficiency of cell assemblies.

[0007] Optionally, the load-bearing mechanism may also include a regularizing component; The alignment component is mounted on the support platform. The alignment component is used to align the battery cell assembly along a second direction, which is perpendicular to the first direction on a horizontal plane.

[0008] The alignment component can calibrate the cell assembly in the second direction, enabling the cells in the cell assembly to be arranged closely and neatly in the second direction, further improving the overall alignment of the cell assembly and providing a good foundation for the subsequent steel strip assembly process.

[0009] Optionally, the aligning assembly includes two aligning elements, a first drive element, two second drive elements, and two mounting brackets; Both fixed frames are disposed on the lower surface of the support platform and can move in the second direction. The first driving member is connected to the two fixed frames and is used to drive the two fixed frames to move closer or further apart from each other. Two second driving members are respectively mounted on two fixed frames, and two leveling members are respectively slidably mounted on the two fixed frames in the vertical direction. The second driving members are used to drive the corresponding leveling members to move in the vertical direction so that the lower surface of the leveling member can be higher than the upper surface of the support platform, or so that the upper surface of the leveling member can be lower than the lower surface of the support platform.

[0010] The upper surface of the alignment component is lower than the lower surface of the support platform to avoid the alignment component affecting the handling of the battery cell assembly and to avoid affecting the tape-wearing process; by using a first driving component to synchronously drive the two alignment components to move closer or further apart, the structure of the alignment component can be simplified, the arrangement of the alignment component can be facilitated, and the overall cost can be reduced.

[0011] Optionally, the upper surface of the aligner is provided with a clearance groove. When the upper surface of the aligner is lower than the lower surface of the support platform and the aligner approaches the support platform along the second direction, the support member on the support platform is located in the clearance groove of the aligner.

[0012] The clearance groove is designed to avoid interference between the regular part and the support part when the regular part is stored under the support platform, thereby improving the overall integrity of the device, optimizing the spatial structure of the device, and facilitating the layout of the device.

[0013] Optionally, each support platform has several sleepers on its upper surface; the sleepers on the two support platforms are arranged in a one-to-one correspondence, and the upper surfaces of each sleeper on the two support platforms are on the same horizontal plane; when the support platforms of the two support mechanisms are close to each other, the first side of the sleeper on the first support platform is in contact with the second side of the sleeper at the corresponding position on the second support platform.

[0014] To prevent damage to the battery cells from collisions with the sleepers during handling and compression strapping.

[0015] Optionally, the intermediate extrusion mechanism also includes a first base; two intermediate extrusion components are mounted on the first base, and the first base is detachably connected to the base. The intermediate extrusion component includes a reference plate, a first clamping assembly, a first support block, a first pressure head, and a first rotary lifting cylinder. The reference plate is mounted on a first base, the first support block is located below the reference plate and is used to support the end plate, the first rotary lifting cylinder is located on the back of the reference plate, and the first pressure head is located at the output end of the first rotary lifting cylinder. The first pressure head and the first support block cooperate to clamp the end plate in the vertical direction. The two clamping ends of the first clamping assembly are respectively horizontally slidably disposed on both sides of the reference plate. The first clamping assembly is used to clamp the end plate in the horizontal direction through the two clamping ends.

[0016] Integrating two intermediate extrusion components onto the first base, with a detachable connection between the first base and the base, improves the assembly and disassembly efficiency of the intermediate extrusion mechanism, thereby increasing production efficiency. By using a reference plate, a first clamping assembly, a first support block, and a first pressure head to cooperate in fixing the end plate, relative displacement between the cell assembly and the end plate due to interference in subsequent processes can be avoided, ensuring the stable fixing of the end plate and guaranteeing the quality of the cell module.

[0017] Optionally, the end extrusion mechanism may also include a mounting bracket, a first sliding seat, and a second base; The second base is fixedly mounted on the base, and the first sliding base is mounted on the second base and can slide on the second base along the first direction; The mounting bracket has an L-shaped structure, with the first end of the mounting bracket set on the first sliding seat and the end pressing member set on the second end of the mounting bracket; The first end of the mounting bracket is detachably connected to the first sliding seat, and / or the second end of the mounting bracket is detachably connected to the end clamp.

[0018] During use, relevant components can be replaced according to the size of the battery cell assembly, making the battery cell module extrusion sleeve device applicable to various specifications of battery cell assemblies, thus further improving the applicability of the battery cell module extrusion sleeve device.

[0019] Optionally, the end pressing component includes a push plate, a second clamping assembly, a second support block, a second pressure head, and a second rotary lifting cylinder, wherein: The push plate is installed at the second end of the mounting frame, the second support block is located below the push plate, the second support block is used to support the end plate, the second rotary lifting cylinder is located on the back of the push plate, the second pressure head is located at the output end of the second rotary lifting cylinder, and the second pressure head and the second support block cooperate to clamp the end plate in the vertical direction. The two clamping ends of the second clamping assembly are respectively horizontally slidably disposed on both sides of the push plate. The second clamping assembly is used to clamp the end plate in the horizontal direction through the two clamping ends.

[0020] By using the push plate, the second clamping assembly, the second support block, and the second pressure head to fix the end plate, it is possible to avoid relative displacement between the battery cell assembly and the end plate due to interference in subsequent processes, thus ensuring the stable fixation of the end plate and guaranteeing the quality of the battery cell module.

[0021] Optionally, the cell module extrusion and sleeve device also includes a cell module conveying mechanism, wherein: The support mechanism also includes a second sliding seat and a third drive assembly. The support platform is slidably mounted on the second sliding seat along the first direction. The second drive assembly is mounted on the second sliding seat, and the third drive assembly is mounted on the base. The third drive assembly is connected to the second sliding seat and is used to drive the second sliding seat to slide along the second direction, so as to move the support platform to the bottom of the cell pack handling mechanism. The battery cell pack handling mechanism is used to place the battery cell packs onto the lower support platform and to remove the battery cell packs after they have been wrapped from the lower support platform.

[0022] The cell pack handling mechanism automatically completes the loading and unloading of cell packs without manual intervention, reducing labor costs and minimizing the impact of operational uncertainties on efficiency. The support platform can actively dock with the cell pack handling mechanism, eliminating the need for frequent orientation adjustments, reducing equipment idle time, and shortening the processing cycle.

[0023] Optionally, the first side of the battery cell pack handling mechanism is provided with two sets of end pressing mechanisms, two sets of bearing mechanisms and one set of intermediate pressing mechanisms, and the second side of the battery cell pack handling mechanism is provided with two sets of end pressing mechanisms, two sets of bearing mechanisms and one set of intermediate pressing mechanisms. The battery cell module extrusion sleeve device also includes a slide rail assembly. The slide rail assembly extends along a second direction, and two sets of slide rail assemblies are arranged at intervals along a first direction. The bearing mechanism on the first side and the bearing mechanism on the second side of the battery cell assembly handling mechanism are correspondingly arranged, and the second sliding seats of the two sets of bearing mechanisms are slidably installed on the same set of slide rail assemblies.

[0024] By setting up a slide rail assembly, the stability of the bearing mechanism when sliding along the second direction can be ensured, avoiding deviation and ensuring that the bearing platform can accurately dock with the cell assembly handling mechanism to complete loading and unloading. At the same time, the two bearing mechanisms share the same slide rail assembly, which not only reduces costs but also ensures that the movement rhythm and stroke of the two bearing platforms along the second direction are consistent. This facilitates the synchronous or alternating docking of the cell assembly handling mechanism with the two mechanisms, reduces operation delays caused by asynchronous movement of the two bearing platforms, further improves the efficiency of parallel processing on both sides, and ensures a smooth overall production process. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a structural diagram of the battery cell module extrusion sleeve device provided in the embodiments of this application; Figure 2 Structural diagrams of the first and second battery cell groups provided in embodiments of this application; Figure 3 This is a structural diagram of the first battery cell assembly provided in an embodiment of this application; Figure 4 A diagram showing the positional relationship between the two sets of end extrusion mechanisms, the two sets of bearing mechanisms, and the intermediate extrusion mechanism; Figure 5 This is a structural diagram of the load-bearing mechanism and slide rail assembly; Figure 6 This is a structural diagram of the load-bearing mechanism; Figure 7 A structural diagram of the organized components; Figure 8 This is a structural diagram of the second drive assembly and the support platform on the second sliding seat. Figure 9The structural diagram of the two end extrusion mechanisms and the two load-bearing mechanisms when the intermediate extrusion mechanism is far away from the two load-bearing mechanisms; Figure 10 This is a structural diagram of the end extrusion mechanism; Figure 11 This is a structural diagram of the intermediate extrusion mechanism.

[0027] Icons: 200 - End pressing mechanism; 210 - First drive assembly; 220 - End pressing component; 221 - Push plate; 222 - Second clamping assembly; 223 - Second support block; 224 - Second pressure head; 225 - Second rotary lifting cylinder; 230 - Mounting bracket; 240 - First sliding seat; 250 - Second base; 300 - Intermediate extrusion mechanism; 310 - Intermediate extruded part; 311 - Reference plate; 312 - First clamping assembly; 313 - First support block; 314 - First pressure head; 315 - First rotary lifting cylinder; 320 - First base; 400-Bearing mechanism; 410-Bearing platform; 420-Second drive assembly; 430-Support component; 440-Ordering assembly; 441-Ordering component; 442-First drive component; 443-Second drive component; 444-Fixing frame; 445-Allowing groove; 450-Sleeper; 460-Second sliding seat; 470-Third drive assembly; 500-Cell Pack Handling Mechanism; 600-Slide rail assembly; 710 - First cell group; 720 - Second cell group; 730 - End plate; 740 - Steel strip. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] This application provides a battery cell module extrusion sleeve device, which is used to push the end plates 730 at both ends of the battery cell module to apply pressure to the battery cell module, so that the battery cell module and the end plates 730 form a tight fit, making it convenient to put the steel strip 740 on the outside of the battery cell module and the end plates 730.

[0036] like Figures 1 to 11As shown, the battery cell module extrusion and tape-making device includes: a base, an end extrusion mechanism 200, a supporting mechanism 400, and an intermediate extrusion mechanism 300. Two sets of end extrusion mechanisms 200 are configured, spaced apart on the base along a first direction. Each end extrusion mechanism 200 includes a first drive assembly 210 and an end extrusion member 220. The end extrusion members 220 of the two sets of end extrusion mechanisms 200 are arranged opposite to each other. The first drive assembly 210 is drively connected to the end extrusion member 220 and is used to drive the end extrusion member 220 to move along the first direction, so that the end extrusion members 220 of the two sets of end extrusion mechanisms 200 can move closer to or further away from each other. Two sets of support mechanisms 400 are configured. Each support mechanism 400 includes a support platform 410 and a second drive assembly 420. The upper surface of the support platform 410 is used to support the battery cell assembly. The support platforms 410 of the two sets of support mechanisms 400 are arranged on the base along a first direction and located between the end extrusion members 220 of the two sets of end extrusion mechanisms 200. The support platform 410 is movable relative to the base along the first direction. The second drive assembly 420 is connected to the support platform 410 and is used to drive the support platform 410 to move along the first direction on the base. Several support members 430 are spaced apart on each side of the support platform 410. The support members 430 can be plate-shaped or rod-shaped, and the support members 430 are also L-shaped. The support members 430 are used to cooperate in supporting the steel strip 740 mounted on the battery cell assembly. The support members 430 on the end faces of the first and second support platforms 410 that are close to each other are detachably installed. The intermediate extrusion mechanism 300 includes two intermediate extrusion members 310, which are arranged opposite to each other. The intermediate extrusion mechanism 300 is movably or detachably mounted on the base. For example, an installation station can be provided on the base, and the intermediate extrusion mechanism 300 can be detachably mounted on the installation station. Alternatively, the intermediate extrusion mechanism 300 can be configured with a drive structure that is connected to it for driving the intermediate extrusion mechanism 300 to move, so that the intermediate extrusion mechanism 300 extends between the support platforms 410 of the two sets of support mechanisms 400, or so that the intermediate extrusion mechanism 300 retracts from the support platforms 410 of the two sets of support mechanisms 400. Furthermore, when the intermediate extrusion mechanism 300 is located between the two support platforms 410, the first intermediate extrusion member 310 of the intermediate extrusion mechanism 300 is arranged opposite to the end extrusion member 220 of the first set of end extrusion mechanisms 200, and the second intermediate extrusion member 310 of the intermediate extrusion mechanism 300 is arranged opposite to the end extrusion member 220 of the second set of end extrusion mechanisms 200.

[0037] When the intermediate extrusion mechanism 300 is located between the support platforms 410 of the two support mechanisms 400, the two support platforms 410 respectively support one first battery cell assembly 710. In use, the first intermediate extruder 310 cooperates with the end extruder 220 of the first end extrusion mechanism 200 to extrude the first battery cell assembly 710. Specifically, the first drive assembly 210 of the first end extrusion mechanism 200 drives the end extruder 220 to move along a first direction towards the first intermediate extruder 310, so that the end extruder 220 and the first intermediate extruder 310 of the first end extrusion mechanism 200 respectively abut against the end plates 730 at both ends of the first battery cell assembly 710; then, the first… The first drive assembly 210 of the end extrusion mechanism 200 continues to drive the end extruder 220 to move along the first direction toward the first intermediate extruder 310, so that the end extruder 220 and the first intermediate extruder 310 of the first end extrusion mechanism 200 cooperate to push the end plates 730 at both ends of the first battery cell group 710 to apply pressure to the first battery cell group 710 and the end plates 730 at both ends of the first battery cell group 710, so that the first battery cell group 710 and the end plates 730 at both ends of the first battery cell group 710 form a tight fit. The second intermediate extruder 310 cooperates with the end extruder 220 of the second set of end extrusion mechanisms 200 to extrude the second first cell assembly 710. Specifically, the first drive assembly 210 of the second set of end extrusion mechanisms 200 drives the end extruder 220 to move along a first direction toward the second intermediate extruder 310, so that the end extruder 220 and the second intermediate extruder 310 of the second set of end extrusion mechanisms 200 are respectively abutted against the end plates 730 at both ends of the first cell assembly 710; then, the second set of end extrusion mechanisms 200... The first drive assembly 210 of the extrusion mechanism 200 continues to drive the end extruder 220 to move along the first direction toward the second intermediate extruder 310, so that the end extruder 220 of the second set of end extrusion mechanisms 200 and the second intermediate extruder 310 cooperate to push the end plates 730 at both ends of the first battery cell group 710 to apply pressure to the first battery cell group 710 and the end plates 730 at both ends of the first battery cell group 710, so that the first battery cell group 710 and the end plates 730 at both ends of the first battery cell group 710 form a tight fit.

[0038] When the intermediate extrusion mechanism 300 moves away from the support platform 410 of the two support mechanisms 400, the second drive assembly 420 of the two support mechanisms 400 drives the corresponding support platform 410 to move along the first direction, so that the two support platforms 410 approach each other and stick together, and the two support platforms 410 cooperate to jointly support a second battery cell group 720. In use, the end pressing members 220 of the two sets of end pressing mechanisms 200 cooperate to press a second battery cell group 720. Specifically, the first driving assembly 210 of the two sets of end pressing mechanisms 200 drives the corresponding end pressing members 220 to move closer to each other along a first direction, so that the end pressing members 220 of the two sets of end pressing mechanisms 200 are in contact with the end plates 730 at both ends of the second battery cell group 720. After that, the first driving assembly 210 of the two sets of end pressing mechanisms 200 continues to drive the end pressing members 220 to move closer to each other along the first direction, so that the end pressing members 220 of the two sets of end pressing mechanisms 200 cooperate to push the end plates 730 at both ends of the second battery cell group 720 to apply pressure to the end plates 730 at both ends of the second battery cell group 720, so that the second battery cell group 720 and the end plates 730 at both ends of the second battery cell group 720 form a tight fit.

[0039] The length of the first cell group 710 is smaller than the length of the second cell group 720; for example Figure 2 and Figure 3 As shown, the first cell group 710 has thirteen cells arranged along its length, and the second cell group 720 has twenty-six cells arranged along its length.

[0040] The battery cell module extrusion sleeve device provided in this application allows the intermediate extrusion mechanism 300 to be positioned between the support platforms 410 of the two support mechanisms 400 for a first battery cell group 710 whose length dimension is much smaller than the initial interval between the two sets of end extrusion mechanisms 200. The support platforms 410 of the two support mechanisms 400 are respectively used to support one first battery cell group 710. The end extrusion member 220 of the end extrusion mechanism 200 cooperates with the intermediate extrusion member 310 of the corresponding intermediate extrusion mechanism 300 to extrude the first battery cell group 710, applying pressure to the first battery cell group 710 and the end plates 730 at both ends of the first battery cell group 710, so that the two first battery cell groups 710 and the corresponding end plates 730 form a tight seal. In a tightly fitted state, for the second cell assembly 720 whose length is close to the initial spacing between the two sets of end extrusion mechanisms 200, the intermediate extrusion mechanism 300 can be moved away from the support platform 410 of the two sets of support mechanisms 400, and the support platforms 410 of the two sets of support mechanisms 400 can be brought together. The support platforms 410 of the two sets of support mechanisms 400 jointly support one second cell assembly 720. The end extrusion members 220 of the two sets of end extrusion mechanisms 200 cooperate to extrude the second cell assembly 720, applying pressure to the end plates 730 at both ends of the second cell assembly 720 and the end plates 730 at both ends of the second cell assembly 720, so that the second cell assembly 720 and the end plates 730 at both ends of the second cell assembly 720 form a tightly fitted state. In this way, the cell module extrusion sleeve device can be applied to cell assemblies of various lengths without the need for additional replacement of support components, solving the problem in the prior art that the extrusion end cannot reach the end plate 730 of short cell assemblies with shorter lengths, and improving the assembly efficiency of cell assemblies. Moreover, when the intermediate extrusion mechanism 300 is located between the support platforms 410 of the two support mechanisms 400, the battery cell module extrusion sleeve device can simultaneously apply pressure to the two battery cell groups, thereby further improving the assembly efficiency of the battery cell groups.

[0041] In addition, the support members 430 spaced around the bearing platform 410 can support the steel strip 740 that is fitted onto the outside of the battery cell assembly and end plate 730 during the extrusion process, which facilitates the subsequent strapping process. Furthermore, the support members 430 on the end faces of the first and second bearing platforms 410 are designed to be detachable. When the two bearing platforms 410 are close to the second battery cell assembly 720, the excess support members 430 can be removed according to the size of the steel strip 740, ensuring the compatibility between the support members 430 and the steel strip 740 and further improving the practicality of the device.

[0042] Overall, the battery cell module extrusion and sleeve device of this application does not require frequent replacement of sleepers 450 as in the prior art. It can adapt to battery cell groups of different specifications, both short and long, and can realize batch synchronous processing of short battery cell groups. At the same time, it ensures the stability of the steel strip 740 sleeve, significantly reduces equipment adjustment time, and improves the overall assembly efficiency and processing stability of battery cell modules, providing strong support for the flexibility and efficiency of battery cell module production.

[0043] After the battery cell assembly is placed on the support platform 410 of the support mechanism 400, due to potential positional shifts or misalignment of the cells during the initial stacking or handling process, therefore, as Figure 6 and Figure 7 As shown, the support mechanism 400 also includes a regularization component 440.

[0044] A aligning assembly 440 is mounted on the support platform 410. The aligning assembly 440 is used to align the battery cell assembly along a second direction, which is perpendicular to the first direction on a horizontal plane. By setting up the aligning assembly 440, the battery cell assembly can be calibrated in the second direction, allowing the individual cells of the battery cell assembly to be arranged closely and neatly in the second direction, further improving the overall regularity of the battery cell assembly and providing a good foundation for the subsequent steel strip 740 assembly process.

[0045] Optional, such as Figure 6 and Figure 7 As shown, the straightening assembly 440 includes a first driving member 442, two straightening members 441, two second driving members 443, and two fixing frames 444. Both fixing frames 444 are disposed on the lower surface of the support platform 410 and are movable along a second direction. The first driving member 442 is driveably connected to the two fixing frames 444 and is used to drive the two fixing frames 444 to move closer or further apart along the second direction. The two second driving members 443 are respectively disposed on the two fixing frames 444. The two straightening members 441 are slidably disposed on the two fixing frames 444 along the vertical direction. The two second driving members 443 are connected to the corresponding straightening members 441. The second driving members 443 are used to drive the corresponding straightening members 441 to move vertically, so that the lower surface of the straightening member 441 is higher than the upper surface of the support platform 410, or so that the upper surface of the straightening member 441 is lower than the lower surface of the support platform 410.

[0046] In use, when the second driving member 443 drives the corresponding alignment member 441 to slide vertically, so that the lower surface of the alignment member 441 is higher than the upper surface of the support platform 410, the first driving member 442 drives the two fixing frames 444 to move closer to each other in the second direction, so that the two alignment members 441 extend into the upper part of the support platform 410 to calibrate the battery cell assembly on the support platform 410 in the second direction; when the first driving member 442 drives the two fixing frames 444 to move away from each other in the second direction, the second driving member 443 drives the corresponding alignment member 441 to slide vertically, so that the upper surface of the alignment member 441 is lower than the lower surface of the support platform 410, so as to avoid the alignment member 441 affecting the handling of the battery cell assembly and to avoid affecting the tape-wearing process; by having a first driving member 442 simultaneously drive the two alignment members 441 to move closer or further away from each other, the structure of the alignment assembly 440 can be simplified, the arrangement of the alignment assembly 440 can be facilitated, and the overall cost can be reduced.

[0047] The aligning component 441 has a long, strip-shaped block structure and extends along a first direction. The aligning component 441 can be slidably mounted on the fixed frame 444 via a sliding rail and slider. To improve the stability of the aligning component 441, two sets of sliding rails and sliders can be provided, located at opposite ends of the aligning component 441. The second driving component 443 can be a telescopic cylinder, such as a pneumatic cylinder or an electric cylinder. Two second driving components 443 are also provided, with the two cylinders respectively located at opposite ends of the aligning component 441. The first driving component 442 includes a motor, a double-ended screw, and two nuts. The motor can be fixedly mounted on one of the fixed frames 444 and rotatably connected to the double-ended screw. The two nuts are fixedly mounted on two fixed frames 444 respectively, with the two ends of the double-ended screw passing through the two nuts. The motor drives the double-ended screw to rotate, thereby causing the two nuts on the double-ended screw to move closer or further apart, thus causing the two fixed frames 444 to move closer or further apart.

[0048] Furthermore, such as Figure 6 and Figure 7 As shown, a clearance groove 445 is provided on the upper surface of the aligner 441. When the upper surface of the aligner 441 is lower than the lower surface of the support platform 410, and the aligner 441 approaches the support platform 410 along the second direction, the support member 430 on the support platform 410 is located in the clearance groove 445 of the aligner 441, so as to avoid mutual interference between the aligner 441 and the support member 430 when the aligner 441 is stored under the support platform 410, thereby improving the overall integrity of the device, optimizing the spatial structure of the device, and facilitating the arrangement of the device.

[0049] Optionally, when the support platforms 410 of the two support mechanisms 400 are placed together, the first side of the alignment member 441 of the first support mechanism 400 can also be placed with the second side of the alignment member 441 of the second support mechanism 400, and the two alignment members 441 cooperate to calibrate the second battery cell assembly 720 in the second direction; or, when the support platforms 410 of the two support mechanisms 400 are placed together, the distance between the first side of the alignment member 441 of the first support mechanism 400 and the second side of the alignment member 441 of the second support mechanism 400 is smaller than the thickness of a single battery cell, which can also achieve the purpose of calibrating the second battery cell assembly 720 in the second direction with the cooperation of the two alignment members 441.

[0050] In optional implementations of this application, such as Figure 5 , Figure 6 , Figure 8 and Figure 9As shown, each support platform 410 has several sleepers 450 on its upper surface; the sleepers 450 on the two support platforms 410 are arranged in a one-to-one correspondence, and the upper surfaces of each sleeper 450 on the two support platforms 410 are located on the same horizontal plane; when the support platforms 410 of the two support mechanisms 400 are close to each other, the first side of the sleeper 450 on the first support platform 410 is in contact with the second side of the sleeper 450 at the corresponding position on the second support platform 410, so as to avoid damage to the battery cell assembly from collisions with the sleepers 450 during the handling process and the compression and strapping process.

[0051] In optional implementations of this application, such as Figure 1 , Figure 4 and Figure 11 As shown, the intermediate extrusion mechanism 300 also includes a first base 320; both intermediate extrusion components 310 are mounted on the first base 320, and the first base 320 is detachably connected to the base. By integrating the two intermediate extrusion components 310 onto the first base 320, and by making the first base 320 detachably connected to the base, the assembly and disassembly efficiency of the intermediate extrusion mechanism 300 can be improved, thereby increasing production efficiency. The first base 320 and the base can be connected by one or a combination of bolted connections, snap-fit ​​connections, or plug-in connections. The intermediate extrusion member 310 includes a reference plate 311, a first clamping assembly 312, a first support block 313, a first pressure head 314, and a first rotary lifting cylinder 315. The reference plate 311 is mounted on the first base 320 and is used to abut the side of the end plate 730 away from the battery cell assembly. The first support block 313 is located below the reference plate 311 and is used to support the end plate 730 of the battery cell assembly. The first rotary lifting cylinder 315 is located on the back of the reference plate 311. The first pressure head 314... 4. Located at the output end of the first rotary lifting cylinder 315, the first pressure head 314 and the first support block 313 cooperate to clamp the end plate 730 in the vertical direction; the two clamping ends of the first clamping assembly 312 are respectively horizontally slidably disposed on both sides of the reference plate 311. The first clamping assembly 312 is used to clamp the end plate 730 in the horizontal direction through the two clamping ends. The two clamping ends of the first clamping assembly 312 can be driven by a double-headed cylinder to move closer or further apart, or each clamping end can be equipped with a separate driving component. By fixing the end plate 730 through the cooperation of the reference plate 311, the first clamping assembly 312, the first support block 313 and the first pressure head 314, relative displacement between the battery cell assembly and the end plate 730 due to interference in subsequent processes can be avoided, ensuring the stable fixing of the end plate 730 and providing a guarantee for the quality of the battery cell module.

[0052] In optional implementations of this application, such as Figure 1 , Figure 9 and Figure 10As shown, the end extrusion mechanism 200 also includes a mounting frame 230, a first sliding seat 240, and a second base 250; the second base 250 is fixedly mounted on the base, and the first sliding seat 240 is mounted on the second base 250 and can slide on the second base 250 in a first direction; the first end of the mounting frame 230 is mounted on the first sliding seat 240, and the end extrusion member 220 is mounted on the second end of the mounting frame 230. The mounting frame 230 has an L-shaped structure so that the end extrusion member 220 can enter above the support platform 410; one end of the mounting frame 230 is detachably connected to the first sliding seat 240, and / or the second end of the mounting frame 230 is detachably connected to the end extrusion member 220, so that during use, relevant components can be replaced according to the size of the battery cell assembly, making the battery cell module extrusion sleeve device applicable to various specifications of battery cell assemblies, further improving the applicability of the battery cell module extrusion sleeve device.

[0053] Optionally, the first drive assembly 210 includes a motor and a ball screw. The motor is mounted on the second base 250 and is connected to the first sliding seat 240 via the ball screw, driving the first sliding seat 240 to slide along a first direction on the second base 250. The first sliding seat 240 can be slidably mounted on the second base 250 via a slide rail and a slider and / or a guide shaft.

[0054] In other alternative embodiments, the first drive assembly 210 may also be a telescopic cylinder such as a pneumatic cylinder or a hydraulic cylinder, or a combination of a motor, gears and racks, which can also achieve the purpose of driving the first sliding seat 240 to slide in the first direction.

[0055] In optional implementations of this application, such as Figure 10As shown, the end pressing member 220 includes a push plate 221, a second clamping assembly 222, a second support block 223, a second pressing head 224, and a second rotary lifting cylinder 225. The push plate 221 is installed at the second end of the mounting bracket 230 and is used to abut against the side of the end plate 730 away from the battery cell assembly. The second support block 223 is located below the push plate 221 and is used to support the end plate 730 of the battery cell assembly. The second rotary lifting cylinder 225 is located on the back of the push plate 221. The head 224 is located at the output end of the second rotary lifting cylinder 225. The second pressure head 224 and the second support block 223 cooperate to clamp the end plate 730 in the vertical direction. The two clamping ends of the second clamping assembly 222 are respectively horizontally slidably located on both sides of the reference plate 311. The second clamping assembly 222 is used to clamp the end plate 730 in the horizontal direction through the two clamping ends. The two clamping ends of the second clamping assembly 222 can be driven by a double-headed cylinder to move closer or further apart, or each clamping end can be equipped with a separate driving component. By using the push plate 221, the second clamping assembly 222, the second support block 223 and the second pressure head 224 to fix the end plate 730, it is possible to avoid relative displacement between the battery cell assembly and the end plate 730 due to interference in subsequent processes, ensuring the stable fixation of the end plate 730 and providing a guarantee for the quality of the battery cell module.

[0056] In optional implementations of this application, such as Figure 1 As shown, the battery cell module extrusion and tapering device also includes a battery cell assembly transport mechanism 500. The carrier mechanism 400 further includes a second sliding seat 460 and a third drive assembly 470. A carrier platform 410 is slidably mounted on the second sliding seat 460 along a first direction. The second drive assembly 420 is mounted on the second sliding seat 460, and the third drive assembly 470 is mounted on a base. The third drive assembly 470 is drively connected to the second sliding seat 460 and is used to drive the second sliding seat 460 to slide along a second direction, thereby moving the carrier platform 410 below the battery cell assembly transport mechanism 500. The battery cell assembly transport mechanism 500 is used to place the battery cell assembly from the previous process onto the carrier platform 410, which has been moved below the battery cell assembly transport mechanism 500, and also to remove the battery cell assembly that has been tapered from the carrier platform 410 below the battery cell assembly transport mechanism 500 and transfer it to the next process. The cell pack handling mechanism 500 automatically completes the loading and unloading of cell packs without manual intervention, reducing labor costs and minimizing the impact of operational uncertainties on efficiency. The support platform 410 can actively dock with the cell pack handling mechanism 500, eliminating the need for frequent orientation adjustments, reducing equipment idle time, and shortening the processing cycle.

[0057] Optionally, the second drive assembly 420 includes a motor and a ball screw. The motor is mounted on the second sliding seat 460 and is connected to the support platform 410 via the ball screw, driving the support platform 410 to slide along the first direction on the second sliding seat 460. The support platform 410 can be slidably mounted on the second sliding seat 460 via a slide rail and a slider.

[0058] In optional implementations of this application, such as Figure 1 and Figure 5 As shown, the first side of the battery cell assembly handling mechanism 500 is equipped with two sets of end extrusion mechanisms 200, two sets of bearing mechanisms 400, and one set of intermediate extrusion mechanism 300; the second side of the battery cell assembly handling mechanism 500 is equipped with two sets of end extrusion mechanisms 200, two sets of bearing mechanisms 400, and one set of intermediate extrusion mechanism 300. This symmetrical layout makes the battery cell assembly extrusion sleeve device more compact and also enables parallel operations of processing on one side and loading / unloading on the other, significantly improving production efficiency. Furthermore, if one side of the battery cell assembly handling mechanism 500 requires maintenance, the other side can continue to operate normally, reducing the risk of production line downtime and improving production stability. Furthermore, the battery cell module extrusion sleeve device also includes a slide rail assembly 600; the slide rail assembly 600 extends along a second direction, and two sets of slide rail assemblies 600 are arranged at intervals along a first direction. The bearing mechanism 400 on the first side and the bearing mechanism 400 on the second side of the battery cell assembly handling mechanism 500 are correspondingly arranged, and the second sliding seats 460 of the two sets of bearing mechanisms 400 are slidably installed on the same set of slide rail assemblies 600. By setting the slide rail assembly 600, the stability of the bearing mechanism 400 when sliding along the second direction can be ensured, avoiding deviation, and ensuring that the bearing platform 410 can accurately dock with the battery cell assembly handling mechanism 500 to complete loading and unloading. At the same time, the two sets of bearing mechanisms 400 share the same slide rail assembly 600, which not only reduces costs, but also ensures that the movement rhythm and stroke of the bearing platforms 410 on both sides along the second direction are consistent. This facilitates the synchronous or alternating docking of the battery cell assembly handling mechanism 500 with the two sides, reduces operation delays caused by asynchronous movement of the bearing platforms 410 on both sides, further improves the efficiency of parallel processing on both sides, and ensures a smooth overall production process.

[0059] Optionally, the third drive assembly 470 includes a motor, a gear, and a rack, with the rack extending along the second direction and disposed between two slide rails of the slide rail assembly 600, and the motor and gear disposed on the second sliding seat 460.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended 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. Such 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.

Claims

1. A battery cell module extrusion sleeve device, characterized in that, The battery cell module extrusion sleeve device includes: a base, an end extrusion mechanism, a bearing mechanism, and an intermediate extrusion mechanism; The end extrusion mechanism is configured as two sets, and the two sets of the end extrusion mechanism are spaced apart on the base along the first direction; The end extrusion mechanism includes a first drive assembly and an end extrusion member. The end extrusion members of the two sets of end extrusion mechanisms are arranged opposite to each other. The first drive assembly is connected to the end extrusion member and is used to drive the end extrusion member to move along a first direction. The support mechanism is configured as two sets, each support mechanism including a support platform and a second drive assembly. The upper surface of the support platform is used to support the battery cell assembly. The support platforms of the two sets of support mechanisms are arranged on the base along a first direction and located between the two sets of end pressing mechanisms. The support platform can move relative to the base along the first direction. The second drive assembly is connected to the support platform and is used to drive the support platform to move along the first direction. The bearing platform is provided with a number of support members at intervals around its perimeter, and the support members on the end faces of the first bearing platform and the second bearing platform that are close to each other are detachable. The number of support members are used to cooperate with the steel strip that is mounted on the battery cell assembly. The intermediate extrusion mechanism includes two intermediate extrusion components, which are arranged opposite to each other. The intermediate extrusion mechanism is movably or detachably mounted on the base. When the intermediate extrusion mechanism is located between the support platforms of the two sets of support mechanisms, the two support platforms each support a first battery cell group. The first intermediate extrusion member cooperates with the end extrusion member of the first set of end extrusion mechanisms to extrude a first battery cell group, and the second intermediate extrusion member cooperates with the end extrusion member of the second set of end extrusion mechanisms to extrude a first battery cell group. When the intermediate extrusion mechanism moves away from the two support platforms, the second drive components of the two support mechanisms drive the two support platforms to come together along the first direction, and the two support platforms cooperate to support a second battery cell assembly.

2. The cell module extrusion sleeve device according to claim 1, characterized in that, The load-bearing mechanism also includes a regulating component; The straightening component is disposed on the support platform, and the straightening component is used to straighten the battery cell group along a second direction, which is perpendicular to the first direction on a horizontal plane.

3. The cell module extrusion sleeve device according to claim 2, characterized in that, The alignment assembly includes two alignment members, a first driving member, two second driving members, and two fixing frames; Both of the fixed frames are disposed on the lower surface of the support platform and are capable of moving in the second direction. The first driving member is connected to the two fixed frames and is used to drive the two fixed frames to move closer to or further away from each other. Two second driving members are respectively disposed on two fixed frames, and two straightening members are respectively slidably disposed on two fixed frames in the vertical direction. The second driving members are used to drive the corresponding straightening members to move in the vertical direction so that the lower surface of the straightening member can be higher than the upper surface of the support platform, or so that the upper surface of the straightening member can be lower than the lower surface of the support platform.

4. The cell module extrusion sleeve device according to claim 3, characterized in that, The upper surface of the aligner is provided with a clearance groove. When the upper surface of the aligner is lower than the lower surface of the support platform and the aligner approaches the support platform along the second direction, the support member on the support platform is located in the clearance groove of the aligner.

5. The cell module extrusion sleeve device according to claim 1, characterized in that, Each of the support platforms has several sleepers on its upper surface; the sleepers on the two support platforms are arranged in a one-to-one correspondence, and the upper surfaces of the sleepers on the two support platforms are located on the same horizontal plane; when the support platforms of the two sets of support mechanisms are close to each other, the first side of the sleeper on the first support platform is in contact with the second side of the sleeper at the corresponding position on the second support platform.

6. The cell module extrusion sleeve device according to claim 1, characterized in that, The intermediate extrusion mechanism further includes a first base; two intermediate extrusion components are mounted on the first base, and the first base is detachably connected to the base. The intermediate extrusion component includes a reference plate, a first clamping assembly, a first support block, a first pressure head, and a first rotary lifting cylinder. The reference plate is mounted on the first base, the first support block is located below the reference plate and is used to support the end plate, the first rotary lifting cylinder is located on the back of the reference plate, and the first pressure head is located at the output end of the first rotary lifting cylinder. The first pressure head and the first support block cooperate to clamp the end plate in the vertical direction. The two clamping ends of the first clamping assembly are respectively horizontally slidably disposed on both sides of the reference plate. The first clamping assembly is used to clamp the end plate in the horizontal direction through the two clamping ends.

7. The cell module extrusion sleeve device according to claim 1, characterized in that, The end extrusion mechanism also includes a mounting bracket, a first sliding seat, and a second base; The second base is fixedly mounted on the base, and the first sliding seat is mounted on the second base and can slide on the second base along a first direction; The mounting bracket has an L-shaped structure, with the first end of the mounting bracket disposed on the first sliding seat, and the end pressing member disposed on the second end of the mounting bracket; The first end of the mounting bracket is detachably connected to the first sliding seat, and / or the second end of the mounting bracket is detachably connected to the end extruder.

8. The cell module extrusion sleeve device according to claim 7, characterized in that, The end pressing component includes a push plate, a second clamping assembly, a second support block, a second pressure head, and a second rotary lifting cylinder, wherein: The push plate is installed at the second end of the mounting frame, the second support block is located below the push plate, the second support block is used to support the end plate, the second rotary lifting cylinder is located on the back of the push plate, the second pressure head is located at the output end of the second rotary lifting cylinder, and the second pressure head and the second support block cooperate to clamp the end plate in the vertical direction. The two clamping ends of the second clamping assembly are respectively horizontally slidably disposed on both sides of the push plate. The second clamping assembly is used to clamp the end plate in the horizontal direction through the two clamping ends.

9. The cell module extrusion sleeve device according to any one of claims 1 to 8, characterized in that, The battery cell module extrusion and sleeve device further includes a battery cell transport mechanism, wherein: The support mechanism further includes a second sliding seat and a third drive assembly. The support platform is slidably mounted on the second sliding seat along a first direction. The second drive assembly is mounted on the second sliding seat. The third drive assembly is mounted on the base. The third drive assembly is connected to the second sliding seat and is used to drive the second sliding seat to slide along a second direction, so as to move the support platform to below the cell pack handling mechanism. The battery cell assembly handling mechanism is used to place the battery cell assembly onto the support platform below, and to remove the battery cell assembly after it has been wrapped from the support platform below.

10. The cell module extrusion sleeve device according to claim 9, characterized in that, The first side of the battery cell assembly handling mechanism is provided with two sets of the end pressing mechanism, two sets of the bearing mechanism and one set of the intermediate pressing mechanism; the second side of the battery cell assembly handling mechanism is provided with two sets of the end pressing mechanism, two sets of the bearing mechanism and one set of the intermediate pressing mechanism. The cell module extrusion sleeve device also includes a slide rail assembly, which extends along a second direction. Two sets of slide rail assemblies are arranged at intervals along a first direction. The bearing mechanism on the first side and the bearing mechanism on the second side of the cell module conveying mechanism are correspondingly arranged. The second sliding seats of the two sets of bearing mechanisms are slidably installed on the same set of slide rail assemblies.

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