Battery cell separation device

Abstract

The utility model provides a battery cell separating device. The battery cell separating device comprises a base assembly, a transmission assembly and a separating piece, the base assembly comprises a base used for installing a battery cell set, the transmission assembly comprises a rotating piece and an installing base, and the separating piece is installed on the installing base. Wherein the rotating part is rotationally mounted on the base, is in transmission connection with the mounting seat, and is used for converting the rotary motion of the rotating part into the linear motion of the mounting seat, so that the mounting seat can do linear motion along the extension direction of the rotating part and drives the separating part to move relative to the base, thereby separating two adjacent battery cells of the battery cell group. The cell separation device provided by the utility model can gently adjust the speed and depth of the separation piece inserted into the gap between the cells according to the specific condition of the cell group, and can avoid the problem that the cell group cannot be effectively separated due to too small force during manual pushing and the problem that the cells are damaged or broken due to too large force during manual pushing; therefore, the separation safety of the battery cell group is ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery recycling technology, specifically to a cell separation device. Background Technology

[0002] When some cells in a battery pack need to be replaced due to damage or performance degradation, the common disassembly method currently involves manually inserting a disassembly plate with an angled design into the gap between two adjacent cells and gradually pushing the plate deeper into the gap until the structural adhesive between the two cells is broken down, thus separating the cells. This method utilizes the pushing force of the angled plate to gradually dismantle the adhesive layer, allowing the cells to be disassembled.

[0003] However, this method has some obvious defects and limitations in practical applications, specifically in the following aspects: the insertion angle, pushing direction and pushing force of the disassembly plate are not easy to control during manual operation, resulting in low efficiency of cell disassembly and inability to guarantee safety during cell disassembly. Utility Model Content

[0004] The present invention provides a battery cell separation device to solve the problems of low battery cell disassembly efficiency and inability to effectively guarantee safety in related technologies.

[0005] In a first aspect, embodiments of the present invention provide a cell separation device, comprising: a base assembly including a base for mounting a cell assembly; a transmission assembly including a rotating member and a mounting seat; and a separation member mounted on the mounting seat; wherein the rotating member is rotatably mounted on the base and transmissionally connected to the mounting seat, for driving the mounting seat to perform linear motion, thereby causing the separation member to move relative to the base, thereby separating two adjacent cells of the cell assembly.

[0006] In one embodiment, the mounting base includes a base portion that is threadedly connected to a rotating member.

[0007] In one embodiment, the base assembly further includes a guide member installed within the base, wherein the base portion is slidably mounted on the guide rod.

[0008] In one embodiment, the mounting base further includes a mounting portion and at least one first reinforcing plate, the mounting portion being connected to the base portion; wherein the mounting portion has a first side facing the battery cell assembly and two opposing second sides, the first side being connected between the two second sides, and the first side being used to mount a separator, and each first reinforcing plate being connected between the corresponding second side of the mounting portion and the base portion.

[0009] In one embodiment, the base assembly further includes an abutment mounted on the base for abutting the side of two adjacent cells away from the separator.

[0010] In one embodiment, the abutment and the base form a mounting cavity for accommodating at least a portion of the rotating member.

[0011] In one embodiment, the abutment member is provided with a mounting hole, one end of the rotating member is rotatably mounted in the mounting hole, and the other end of the rotating member is received in the mounting cavity.

[0012] In one embodiment, the base includes a base plate and at least one side plate connected to the base plate, the base plate and at least one side plate forming part of a mounting cavity; an abutment is mounted on the base plate; wherein each side plate includes a second reinforcing plate, and each second reinforcing plate is connected between the corresponding side of the abutment and the base plate.

[0013] In one embodiment, the base assembly further includes a support plate that is supported on the base and used for mounting the battery cell assembly; wherein the support plate includes a protrusion that engages with a mounting cavity.

[0014] In one embodiment, the dimension of the separator in the height direction of the battery cell assembly is in the ratio of 0.9 to 1 to the height of the battery cell assembly.

[0015] This invention provides a battery cell separation device, comprising a base assembly, a transmission assembly, and a separating component. The base assembly includes a base for mounting the battery cell assembly, and the transmission assembly includes a rotating component and a mounting seat. The separating component is mounted on the mounting seat. The rotating component is rotatably mounted on the base and drively connected to the mounting seat, converting the rotational motion of the rotating component into linear motion of the mounting seat. This allows the mounting seat to move linearly along the extension direction of the rotating component, driving the separating component to move relative to the base, thereby separating adjacent battery cells from the battery cell assembly. The battery cell separation device provided by this invention can smoothly adjust the speed and depth of the separating component's insertion into the gap between the battery cells according to the specific conditions of the battery cell assembly. This avoids the problems of insufficient force during manual pushing leading to ineffective separation of the battery cell assembly, and excessive force during manual pushing leading to damage or breakage of the battery cells, thus ensuring the safety of battery cell assembly separation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the battery cell separation device and battery cell assembly provided in this embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the battery cell separation device provided in this embodiment of the utility model;

[0019] Figure 3 yes Figure 2 Schematic diagram of the middle mounting base;

[0020] Figure 4 This is a schematic diagram of the battery cell separation device from another perspective provided by an embodiment of the present invention;

[0021] Figure 5 yes Figure 2 Structural diagram of the central base, rotating components, and guide components;

[0022] Figure 6 yes Figure 5 Schematic diagram of the middle base;

[0023] Figure 7 yes Figure 1 Side view of the cell separation device and cell assembly

[0024] Explanation of reference numerals in the attached figures:

[0025] 100. Cell separation device; 130. Separator; 101. Base; 102. Rotating component; 103. Mounting seat; 104. Base part; 105. Guide component; 106. Mounting part; 107. First reinforcing plate; 108. Abutting component; 109. Mounting hole; 201. Bottom plate; 202. Side plate; 203. Second reinforcing plate; 204. Support plate; 205. Protrusion; 200. Cell assembly. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0027] To address the issues of low efficiency and inadequate safety in battery cell disassembly in related technologies, this utility model provides a battery cell separation device 100 for separating battery cell groups 200. Please refer to... Figure 1 , Figure 1This is a schematic diagram of the structure of the battery cell separation device 100 and the battery cell assembly 200 provided in this embodiment of the utility model. The battery cell separation device 100 includes a base assembly, a transmission assembly, and a separation component 130.

[0028] The base assembly includes a base 101 for mounting the battery cell assembly 200, and a transmission assembly including a rotating member 102 and a mounting base 103. A separating member 130 is mounted on the mounting base 103. The rotating member 102 is rotatably mounted on the base 101 and transmitted to the mounting base 103, converting the rotational motion of the rotating member 102 into linear motion of the mounting base 103. This allows the mounting base 103 to move linearly along the extension direction of the rotating member 102, thereby causing the separating member 130 to move relative to the base 101, thus separating two adjacent battery cells of the battery cell assembly 200.

[0029] Before separating the battery cell assembly 200, the cell separation device 100 in this embodiment needs to perform pre-processing on the battery module, such as removing additional components like connecting aluminum busbars and steel strips. After removing the additional components, the battery cell assembly 200, consisting of multiple battery cells, is retained. There are gaps between adjacent battery cells, and structural adhesive is typically used in these gaps to ensure that the multiple battery cells can be firmly bonded together, thus forming a stable overall structure.

[0030] In this embodiment, the steps of separating the battery cell assembly 200 by the battery cell separation device 100 include:

[0031] (1) Place the battery cell assembly 200 in the preset position of the base 101 so that the gap between the battery cell to be replaced and the adjacent battery cell is aligned with the separator 130 near one end of the battery cell assembly 200.

[0032] (2) Control the rotation of the transmission component to convert the rotational motion of the rotating component 102 into the linear motion of the mounting base 103, so that the separating component 130 mounted on the mounting base 103 moves relative to the base 101 and gradually approaches the gap between the cells and inserts into the gap until the separating component 130 destroys the structural adhesive in the gap so that the two adjacent cells are separated.

[0033] The rotation of the rotating component 102 can be controlled manually or mechanically. Since mechanical control can provide more precise operation, such as more precise control of the movement speed and pushing force of the separating component 130, mechanical control of the rotation of the rotating component 102 is the preferred method in practical applications.

[0034] Compared to the traditional method of manually pushing the separator to separate the battery cells, the battery cell separation device 100 in this embodiment converts the rotational motion of the rotating member 102 into the linear motion of the mounting base 103. This allows for the smooth adjustment of the speed and depth at which the separator 130 inserts into the gap between the battery cells, based on the specific conditions of the battery cell assembly 200. This avoids the problem of insufficient force during manual pushing, which could lead to ineffective separation of the battery cell assembly 200, thus ensuring the separation efficiency of the battery cell assembly 200. Furthermore, separating the battery cell assembly 200 using the battery cell separation device 100 also avoids damage or breakage of the battery cells caused by excessive force during manual pushing, thereby ensuring the safety of the battery cell assembly 200 separation.

[0035] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 2 This is a schematic diagram of the structure of the battery cell separation device 100 provided in this embodiment of the utility model. Figure 3 yes Figure 2 The schematic diagram of the mounting base 103 shows that the mounting base 103 includes a base portion 104, which is threadedly connected to the rotating member 102. Specifically, in this embodiment, the rotating member 102 is provided with an external thread, and the base portion 104 is provided with an internal thread corresponding to the external thread. The external thread of the rotating member 102 and the internal thread of the base portion 104 are connected by a threaded engagement. During the rotation of the rotating member 102, the base portion 104 moves linearly along the axial direction of the rotating member 102, so that the separating member 130 moves closer to or further away from the cell assembly 200.

[0036] The rotating component 102 is connected to the base portion 104 via a threaded connection, ensuring the stability and reliability of the movement of the mounting base 103. When the rotating component 102 rotates, its rotational speed and direction directly affect the movement speed and direction of the base portion 104. By flexibly adjusting the rotational speed and direction of the rotating component 102, the displacement distance of the separating component 130 located on the base portion 104 along the axial direction of the rotating component can be precisely controlled. Furthermore, the threaded connection ensures that the base portion 104 is less prone to displacement when the rotating component 102 stops rotating, thereby ensuring the reliability of the cell separation device 100.

[0037] In some embodiments, please refer to Figure 2 , Figure 3The base assembly also includes a guide member 105 installed within the base 101, with the base portion 104 slidably mounted on the guide member 105. Specifically, the guide member 105 is disposed on at least one side of the base portion 104, and the extending direction of the guide member 105 is the same as the extending direction of the rotating member 102. The guide member 105 passes through a corresponding through hole provided in the base portion 104 to fix the movement direction of the mounting base 103 to the extending direction of the guide member 105, thereby ensuring that the mounting base 103 slides smoothly along a predetermined trajectory. In addition, the guide member 105 can also effectively prevent the mounting base 103 from rotating due to the rotation of the rotating member 102, and prevent the base portion 104 from generating unnecessary deflection or shaking during movement, thereby ensuring the operational stability of the cell separation device 100.

[0038] In some embodiments, please refer to Figure 1 , Figure 3 The mounting base 103 includes a base portion 104, a mounting portion 106, and at least one first reinforcing plate 107. The mounting portion 106 is connected to the base portion 104. The mounting portion 106 has a first side facing the battery cell assembly 200 and two opposing second sides. The first side is used to mount the separator 130 and is connected between the two second sides. Each first reinforcing plate 107 is connected between the corresponding second side of the mounting portion 106 and the base portion 104.

[0039] In this embodiment, a first reinforcing plate 107 is disposed between the corresponding second side of the mounting portion 106 and the base portion 104 to enhance the structural strength of the mounting base 103, thereby reducing the risk of damage to the mounting base 103 caused by excessive reaction force applied by the separator 130 when separating the battery cell. Furthermore, the first reinforcing plate 107 is not limited to being disposed between the second side of the mounting portion 106 and the base portion 104; it can also be disposed between the first side of the mounting portion 106 and the base portion 104, and between the side of the mounting portion 106 opposite to the first side and the base portion 104, thereby providing structural reinforcement and support for the mounting base 103 in multiple directions to improve its load-bearing capacity and stability, making it more robust and durable in operation.

[0040] In some embodiments, please refer to Figure 2 , Figure 4 , Figure 4 This is a schematic diagram of the structure of the battery cell separation device 100 from another perspective provided by the present utility model embodiment. The base assembly includes a base 101 and an abutment 108. The abutment 108 is installed on the base 101 and is used to abut the side of the two adjacent battery cells to be separated that is away from the separation member 130.

[0041] In this embodiment, the abutment 108 is mainly used to provide support for the battery cell during the process of the separator 130 applying force to separate the battery cell. The abutment 108 can effectively prevent the battery cell from shifting or tilting, so as to ensure that the battery cell remains within a predetermined position range during the separation process.

[0042] Furthermore, in some embodiments, please refer to Figure 2 , Figure 4 The abutment 108 can also form a mounting cavity with the base 101, so that at least a portion of the rotating member 102 can be accommodated in the mounting cavity. In this embodiment, the abutment 108 can not only provide support for the battery cell, but also serve as a component of the mounting cavity, thereby improving the reusability of the abutment 108, reducing the structural complexity of the battery cell separation device 100, and improving the space utilization of the battery cell separation device 100 to a certain extent.

[0043] In this embodiment, the abutment member 108 not only provides the necessary support for the battery cell, but also serves as a component of the mounting cavity, avoiding the need for additional space required by setting up independent components to form the mounting cavity. Therefore, it can effectively optimize the space occupancy rate of the battery cell separation device 100. In addition, this structural design can also reduce the structural complexity of the battery cell separation device 100, thereby reducing the manufacturing difficulty and cost of the battery cell separation device 100.

[0044] Furthermore, in some embodiments, please refer to Figure 5 , Figure 6 , Figure 5 yes Figure 2 A schematic diagram of the structure of the base 101, the rotating component 102, and the guide component 105. Figure 6 yes Figure 5 A schematic diagram of the base 101 shows that the abutment 108 has a mounting hole 109, allowing one end of the rotating member 102 to be rotatably mounted in the mounting hole 109, while the other end of the rotating member 102 is housed within the mounting cavity. This structural design further expands the function of the abutment 108, enabling it not only to provide support for the battery cell and serve as part of the mounting cavity, but also to provide a mounting position for the rotating member 102. One end of the rotating member 102 is rotatably connected to the abutment 108 through the mounting hole 109, allowing the rotating member 102 to rotate smoothly within the mounting hole 109. In practical applications, this structural design also ensures the reliability of the battery cell separation device 100. The abutment 108 and the rotating member 102, through the cooperation of the mounting hole 109 and the mounting cavity, ensure the stable operation of the rotating member 102 during operation. The design of the mounting cavity prevents interference or collision during rotation of the rotating member 102, thus avoiding displacement or damage to the rotating member 102.

[0045] From a structural optimization perspective, by providing mounting holes 109 on the abutment member 108, the complexity of the cell separation device 100 can be further reduced. Typically, the cell separation device 100 requires multiple components to support and fix the rotating member 102, which not only increases the volumetric footprint and manufacturing cost of the cell separation device 100 but also increases the assembly difficulty. This embodiment, by providing mounting holes 109 on the abutment member 108, makes the cell separation device 100 more compact and lightweight, significantly improving its space utilization, avoiding space waste, and reducing the number of parts, thus helping to reduce production and maintenance costs. It also reduces assembly difficulty and the probability of device malfunction.

[0046] In some embodiments, please refer to Figure 4 , Figure 6 The base 101 includes a base plate 201 and at least one side plate 202 connected to the base plate 201. The base plate 201 and the at least one side plate 202 form part of a mounting cavity. The abutment member 108 is mounted on the base plate 201. Each side plate 202 includes a second reinforcing plate 203, and each second reinforcing plate 203 is connected between the corresponding side of the abutment member 108 and the base plate 201.

[0047] Specifically, each side plate 202 in this embodiment includes a second reinforcing plate 203. The presence of the second reinforcing plate 203 not only enhances the stability of the side plate 202, but also structurally strengthens the connection between the abutment member 108 and the base plate 201. Each second reinforcing plate 203 is connected to the corresponding side of the abutment member 108 to form a stable support structure. This structural design improves the load-bearing capacity between the base plate 201 and the side plate 202, thereby ensuring that the cell separation device 100 can withstand greater forces during operation without easily undergoing structural deformation or damage.

[0048] In some embodiments, please refer to Figure 1 , Figure 2 The base assembly includes a base 101, an abutment 108, and a support plate 204. The support plate 204 is supported on the base 101 and is used to install the battery cell assembly 200. The support plate 204 includes a protrusion 205. The support plate 204 is inserted into the mounting cavity through the protrusion 205, which can effectively prevent the support plate 204 from shaking, thereby ensuring the stability of the battery cell assembly 200 separation process.

[0049] Specifically, the bottom and sides of the battery cell assembly 200 abut against the support plate 204 and the abutment member 108, respectively. The support plate 204 provides support for the bottom of the battery cell assembly 200 and engages with the opening in the mounting cavity via a protrusion 205 to form a stable snap-fit ​​structure. This structural design effectively prevents the support plate 204 from shaking or shifting during the separation of the battery cell assembly 200, thereby improving the stability and reliability of the separation operation.

[0050] In some embodiments, please refer to Figure 7 , Figure 7 yes Figure 1 A side view of the cell separation device 100 and the cell assembly 200. The ratio of the dimension d of the separator 130 in the height direction of the cell assembly 200 to the height H of the cell assembly 200 is set between 0.9 and 1.

[0051] Specifically, when the separator 130 is inserted into the gap between adjacent cells, the larger contact area can effectively distribute the force applied to the cells, avoiding uneven force distribution or excessive local pressure caused by a small contact area, thereby reducing the risk of damage to the cells.

[0052] This utility model provides a battery cell separation device 100, which includes a base assembly, a transmission assembly, and a separation component 130. The base assembly includes a base 101 for mounting a battery cell assembly 200, and the transmission assembly includes a rotating component 102 and a mounting base 103. The separation component 130 is mounted on the mounting base 103. The rotating component 102 is rotatably mounted on the base 101 and transmitted to the mounting base 103, converting the rotational motion of the rotating component 102 into linear motion of the mounting base 103. This allows the mounting base 103 to move linearly along the extension direction of the rotating component 102, thereby causing the separation component 130 to move relative to the base 101, thus separating two adjacent battery cells of the battery cell assembly 200. Compared to the traditional method of manually pushing the separator 130 to separate the battery cell assembly 200, the battery cell separation device 100 in this embodiment converts the rotational movement of the rotating member 102 into the linear movement of the mounting base 103. This allows for the smooth adjustment of the speed and depth at which the separator 130 inserts into the gap between the battery cells, based on the specific characteristics of the battery cell assembly 200. This avoids the problem of insufficient force during manual pushing, which could lead to ineffective separation of the battery cell assembly 200, thus ensuring the separation efficiency of the battery cell assembly 200. Furthermore, separating the battery cell assembly 200 using the battery cell separation device 100 also avoids damage or breakage of the battery cells caused by excessive force during manual pushing, thereby ensuring the safety of the battery cell assembly 200 separation.

[0053] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A cell separation device for separating cell assemblies, characterized in that, include: A base assembly, including a base for mounting the battery cell assembly; Transmission assembly, including rotating parts and mounting base; as well as Separator, installed on the mounting base; The rotating component is rotatably mounted on the base and connected to the mounting seat, and is used to drive the mounting seat to make linear motion, thereby causing the separating component to move relative to the base, thereby separating two adjacent cells of the cell group.

2. The cell separation device according to claim 1, characterized in that, The mounting base includes a base portion that is threadedly connected to the rotating member.

3. The cell separation device according to claim 2, characterized in that, The base assembly further includes a guide member installed inside the base, wherein the base portion is slidably mounted on the guide member.

4. The cell separation device according to claim 2, characterized in that, The mounting base further includes a mounting portion and at least one first reinforcing plate, the mounting portion being connected to the base portion; wherein, the mounting portion has a first side facing the cell assembly and two opposing second sides, the first side being connected between the two second sides, and the first side being used to mount the separator, and each of the first reinforcing plates being connected between the corresponding second side of the mounting portion and the base portion.

5. The cell separation device according to any one of claims 1-4, characterized in that, The base assembly further includes an abutment mounted on the base, the abutment being used to abut against the side of two adjacent battery cells away from the separator.

6. The cell separation device according to claim 5, characterized in that, The abutment and the base form a mounting cavity, which is used to accommodate at least a portion of the rotating member.

7. The cell separation device according to claim 6, characterized in that, The abutting member is provided with a mounting hole, one end of the rotating member is rotatably mounted in the mounting hole, and the other end of the rotating member is received in the mounting cavity.

8. The cell separation device according to claim 6, characterized in that, The base includes a base plate and at least one side plate connected to the base plate, the base plate and at least one side plate forming part of the mounting cavity; the abutment is mounted on the base plate; wherein each side plate includes a second reinforcing plate, and each second reinforcing plate is connected between the corresponding side of the abutment and the base plate.

9. The cell separation device according to claim 6, characterized in that, The base assembly further includes a support plate, which is supported on the base and used to mount the battery cell assembly; wherein the support plate includes a protrusion that engages with the mounting cavity.

10. The cell separation device according to any one of claims 1-4, characterized in that, The ratio of the dimension of the separator in the height direction of the battery cell assembly to the height of the battery cell assembly is 0.9 to 1.

Images