Diaphragm shaping device and battery production line
By designing a diaphragm shaping device, the diaphragm at the edge of the battery cell is hot or cold pressed by using the plastic parts to fold the diaphragm to the inside, solving the problem that the diaphragm is easy to lift or fold when encapsulated into the shell, and improving battery quality and manufacturing yield.
Patent Information
- Application Number
- CN202421384377.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-17
AI Technical Summary
During the production process of lithium-ion batteries, the diaphragm is easily raised or folded when packaged into the shell, resulting in the battery cell being super thick, affecting the battery quality and manufacturing defect rate.
A diaphragm shaping device is designed, including a shaping assembly and a limiting mechanism. The diaphragm at the edge of the battery cell is blanched or cold-pressed through the plastic part to make the diaphragm fold inward to prevent it from being raised or folded.
Effectively prevent the diaphragm from rising or folding when encapsulated into the shell, ensuring battery quality and improving manufacturing yield.
Smart Images
Figure CN223023313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery pack processing, and specifically, to a diaphragm shaping device. In addition, it also relates to a battery production line. Background Art
[0002] During the production process of lithium-ion batteries, after the production of the electrode sheets is completed, the positive electrode sheet, the negative electrode sheet and the diaphragm are assembled by winding or laminating methods to form a basic battery cell.
[0003] After the positive electrode sheet, the negative electrode sheet and the diaphragm are laminated by a laminator to form a battery cell, the tab is welded and the glue is pasted through a transfer welding device, and then the battery cell is put into a shell and encapsulated through an encapsulation device. After lamination, the diaphragm protrudes from the left and right sides of the positive electrode sheet and the negative electrode sheet, without covering the positive electrode sheet and the negative electrode sheet at all. The diaphragm structure is easy to deform. Therefore, when being put into the shell for encapsulation, the diaphragm is easy to warp or fold over, resulting in defects such as the over-thickness of the battery cell, which affects the battery quality and the manufacturing defect rate. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a diaphragm shaping device which can avoid the warping or outward folding of the diaphragm and ensure the battery quality and the manufacturing yield. The second purpose of the utility model is to provide a battery production line.
[0005] To achieve the above purpose, on one hand, the utility model provides a diaphragm shaping device, which includes a shaping assembly. The shaping assembly includes a shaping member. The shaping member includes a first shaping member and a second shaping member which are arranged oppositely. A first shaping chamfer α1 is formed on the surface of the first shaping member facing the second shaping member, and a second shaping chamfer α2 is formed on the surface of the second shaping member facing the first shaping member. The shaping member is used for shaping the diaphragm of the battery cell.
[0006] In some embodiments, it further includes a limiting mechanism. The limiting mechanism includes a limiting member, a fixing component and a positioning member. The positioning member is installed on the fixing component. The fixing component is used for fixing the battery cell on the positioning member. The positioning member is used for supporting the battery cell. The limiting member is arranged oppositely to the positioning member to limit the battery cell.
[0007] In some embodiments, the fixing component is a vacuum adsorption device.
[0008] In some embodiments, through holes communicating with the vacuum adsorption device are arranged on the positioning member.
[0009] In some embodiments, the limiting mechanism further includes a first support frame, a second support frame, and a first sliding mechanism. Both the fixing component and the first support frame are installed on the second support frame. The limiting member is installed on the first sliding mechanism, and the first sliding mechanism is installed on the first support frame so that the limiting member moves toward or away from the positioning member.
[0010] In some embodiments, the limiting mechanism further includes a second sliding mechanism, and the second support frame is slidably disposed on the second sliding mechanism.
[0011] In some embodiments, the shaping component further includes a first driving mechanism, a second driving mechanism, and a mounting frame. The mounting frame is disposed at the driving end of the first driving mechanism, and the second driving mechanism is disposed on the mounting frame. The second driving mechanism is configured to enable the first shaping member and the second shaping member to move relative to each other.
[0012] In some embodiments, there are two second driving mechanisms. One second driving mechanism is used to drive the first shaping member, and the other second driving mechanism is used to drive the second shaping member.
[0013] In some embodiments, heat insulation members are provided between the second shaping member and the second driving mechanism and between the first shaping member and the second driving mechanism.
[0014] In some embodiments, both the first shaping member and the second shaping member are heating members.
[0015] In some embodiments, one shaping component is arranged on each side of the limiting mechanism.
[0016] In some embodiments, a positioning mechanism is further included, and the positioning mechanism is configured to be able to position the placement position of the battery cell on the positioning member.
[0017] In some embodiments, the first shaping chamfer α1 is 100 - 170°, and the second shaping chamfer α2 is 100 - 170°.
[0018] On the other hand, the present utility model provides a battery production line provided with the above-mentioned diaphragm shaping device.
[0019] Through the above technical solution, the battery cell can be limited by the positioning member and the limiting member, and the shaping member is used to thermally iron or cold press the diaphragm at the edge position of the battery cell, so that the diaphragm is folded inward, preventing the diaphragm from warping or folding outward when being encapsulated into the shell, and ensuring the battery quality and the manufacturing yield.
[0020] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the Drawings
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 It is a schematic structural diagram of the battery cell in a specific embodiment of the present utility model;
[0023] Figure 2 It is a schematic diagram of the stacked state of the electrode plate and the separator in the battery cell in the prior art;
[0024] Figure 3 It is a schematic diagram of the stacked state of the electrode plate and the separator in the battery cell of the present utility model after shaping;
[0025] Figure 4 It is a schematic structural diagram of the separator shaping device in a specific embodiment of the present utility model;
[0026] Figure 5 It is a schematic structural diagram of the limiting mechanism in a specific embodiment of the present utility model;
[0027] Figure 6 It is a schematic structural diagram of the shaping assembly in a specific embodiment of the present utility model;
[0028] Figure 7 It is a schematic structural diagram of the first shaping member in a specific embodiment of the present utility model;
[0029] Figure 8 is Figure 7 A partial enlarged schematic diagram of A of.
[0030] Description of the Reference Numerals
[0031] 1 - Limiting mechanism; 2 - First shaping assembly; 3 - Second shaping assembly; 4 - Positioning mechanism; 5 - Electrode plate; 6 - Separator; 7 - Limiting member; 71 - First support frame; 72 - Second support frame; 8 - Fixing assembly; 9 - First sliding mechanism; 10 - Positioning member; 11 - Second sliding mechanism; 12 - First driving mechanism; 13 - Second driving mechanism; 14 - Mounting frame; 15 - Heat insulation member; 161 - First shaping member; 162 - Second shaping member. Detailed Embodiments
[0032] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The detailed descriptions and drawings of the following embodiments are used to exemplarily illustrate the principles of the present utility model, but cannot be used to limit the scope of the present utility model. The present utility model can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but including all technical solutions falling within the scope of the claims.
[0033] The present utility model provides these embodiments to make the present utility model thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values described in these embodiments should be interpreted as merely exemplary, rather than as limitations.
[0034] It should be noted that in the description of the present utility model, unless otherwise specified, the indicated orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0035] In addition, the "first", "second" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "including" or "comprising" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.
[0036] It should also be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0037] All terms used in the present utility model have the same meanings as those understood by those of ordinary skill in the art to which the present utility model belongs, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.
[0038] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.
[0039] As Figures 4 to 6 shown, the basic embodiment of the present utility model provides a diaphragm shaping device, including a shaping assembly, the shaping assembly includes a shaping member, the shaping member includes a first shaping member 161 and a second shaping member 162 arranged oppositely, a first shaping chamfer α1 is formed on the surface of the first shaping member 161 facing the second shaping member 162, a second shaping chamfer α2 is formed on the surface of the second shaping member 162 facing the first shaping member 161, and the shaping member is used for shaping the diaphragm 6 of the battery cell.
[0040] In the present utility model, the first shaping chamfer α1 is provided on the first shaping member 161, and the second shaping chamfer α2 is provided on the second shaping member 162. The two are respectively provided on the opposite surfaces of the first shaping member 161 and the second shaping member 162 and are located on the same side edge. As Figure 7 and Figure 8 shown, Figure 8 The specific structural schematic diagram of the first shaping chamfer α1 shown in
[0041] Generally, during the production process of lithium-ion batteries, the positive electrode sheet, the negative electrode sheet, and the diaphragm are assembled by winding or laminating methods to form a basic battery cell. Referring to Figure 1 Figure 2 shows the laminated state of the positive electrode sheet, the negative electrode sheet, and the diaphragm assembled by the lamination method in the prior art. In this existing laminated state of the positive electrode sheet, the negative electrode sheet, and the diaphragm, when encapsulated into the shell, the diaphragm 6 is prone to warp or turn outwards, resulting in an over-thick battery cell, and further leading to quality problems such as low capacity, poor cycle performance, and fast self-discharge, affecting the battery quality and the manufacturing defect rate.
[0042] The present utility model uses a limiting member 7 and a positioning member 10 to limit the battery cell, which can prevent the battery cell from moving during the shaping process and affecting the shaping of the diaphragm 6. The shaping member is used to thermally iron or cold press the diaphragm at the edge position of the battery cell, as Figure 3 As shown, the diaphragm 6 is folded inward, or the diaphragm 6 wraps around the edge of the electrode tab 5 inward to prevent the diaphragm 6 from warping or folding outward when being encapsulated into the shell, ensuring the battery quality and the manufacturing yield rate.
[0043] In some embodiments, as Figure 5 shown, the diaphragm shaping device of the present utility model further includes a limiting mechanism 1. The limiting mechanism 1 includes a limiting member 7, a fixing assembly 8 and a positioning member 10. The positioning member 10 is installed on the fixing assembly 8. The fixing assembly 8 is used to fix the battery cell on the positioning member 10. The positioning member 10 is used to support the battery cell. The limiting member 7 is arranged opposite to the positioning member 10 to limit the battery cell. Specifically, the fixing assembly 8 can be a vacuum adsorption device. Correspondingly, a plurality of through holes are formed in the positioning member 10, and these through holes are communicated with the vacuum adsorption device. The battery cell is adsorbed and fixed on the positioning member 10 by means of vacuum adsorption. Among them, the vacuum adsorption device can be connected to a vacuum pump. When in use, a vacuum state is formed in the through holes on the positioning member 10 to achieve the purpose of vacuum adsorption. The vacuum adsorption device is a conventional device for realizing vacuum adsorption and is well known to those skilled in the art, so it will not be elaborated here.
[0044] In some embodiments, as Figure 5 shown, the limiting mechanism 1 further includes a first support frame 71, a second support frame 72 and a first sliding mechanism 9. The first support frame 71 and the second support frame 72 are of a frame structure, for example, assembled by metal plates. The fixing assembly 8 and the first support frame 71 are respectively installed on the second support frame 72. The limiting member 7 is installed on the first sliding mechanism 9. The fixing assembly 8 and the limiting member 7 are both located on the same side of the first support frame 71, and moreover, the fixing assembly 8 and the limiting member 7 are arranged opposite to each other, that is, the positioning member 10 and the limiting member 7 are arranged opposite to each other. In a preferred case, the opposite surfaces of the positioning member 10 and the limiting member 7 are planes. It should be noted that the shapes of the opposite surfaces of the positioning member 10 and the limiting member 7 can be designed according to the shape of the battery cell and are not limited to planes. The first sliding mechanism 9 is installed on the first support frame 71. The first sliding mechanism 9 can drive the limiting member 7 to move in the up and down direction, so that the limiting member 7 moves towards the positioning member 10 or the limiting member 7 moves away from the positioning member 10. Among them, the first sliding mechanism 9 can be an electric cylinder, a hydraulic cylinder, a servo motor, a stepping motor, etc., preferably a cylinder. The limiting member 7 is installed at the end of the piston rod of the cylinder.
[0045] Furthermore, as Figure 5As shown, the limiting mechanism 1 further includes a second sliding mechanism 11, and the second support frame 72 is slidably arranged on the second sliding mechanism 11. Specifically, the second sliding mechanism 11 may include a servo motor and a guide rail slider mechanism. A guide rail is arranged on the second sliding mechanism 11, and a guide slider is arranged at the bottom of the second support frame 72, which is used in cooperation with the guide rail on the second sliding mechanism 11. Driven by the servo motor, the second support frame 72 can move along the guide rail on the second sliding mechanism 11. In a preferred case, the guide rail on the second sliding mechanism 11 can be arranged in the front-rear direction, and the position of the second support frame 72 in the front-rear direction can be adjusted, so that the positions of the positioning member 10 and the limiting member 7 in the front-rear direction can be adjusted, and then the position of the battery cell can be adjusted to align the battery cell with the shaping assembly. Alternatively, the second sliding mechanism 11 can also be a cylinder, and the second support frame 72 is installed at the end of the piston rod of the cylinder. Or, the second sliding mechanism 11 can be other devices that can realize the movement of the second support frame 72 along the set direction.
[0046] In some embodiments, the shaping assembly includes a first shaping assembly 2 and a second shaping assembly 3. The first shaping assembly 2 and the second shaping assembly 3 are respectively arranged on the left and right sides of the limiting mechanism 1. The first shaping assembly 2 and the second shaping assembly 3 are mirror structures and are basically the same in structure.
[0047] In some embodiments, as Figure 6 shown, the shaping assembly further includes a first driving mechanism 12, a second driving mechanism 13 and a mounting frame 14. The mounting frame 14 is arranged at the driving end of the first driving mechanism 12, and the second driving mechanism 13 is arranged on the mounting frame 14. The shaping members include a first shaping member 161 and a second shaping member 162. The first shaping member 161 and the second shaping member 162 are arranged oppositely. The second driving mechanism 13 is configured to be able to drive the first shaping member 161 and the second shaping member 162 to move relatively, that is, to drive the first shaping member 161 and the second shaping member 162 to fit or separate. Among them, the first driving mechanism 12 and the second driving mechanism 13 can be electric cylinders, hydraulic cylinders, servo motors, stepping motors, etc., and preferably cylinders.
[0048] Specifically, there may be two second driving mechanisms 13. A first shaping member 161 is provided at the driving end of one second driving mechanism 13 for driving the first shaping member 161, and a second shaping member 162 is provided at the driving end of the other second driving mechanism 13 for driving the second shaping member 162. Thus, relative movement of the first shaping member 161 and the second shaping member 162 can be driven. Alternatively, the second shaping member 162 is installed on the mounting bracket 14, and the first shaping member 161 is provided at the driving end of the second driving mechanism 13, so that by driving the first shaping member 161 to move in the up and down direction, relative movement of the first shaping member 161 and the second shaping member 162 is achieved. Alternatively, the first shaping member 161 is installed on the mounting bracket 14, and the second shaping member 162 is provided at the driving end of the second driving mechanism 13, so that by driving the second shaping member 162 to move in the up and down direction, relative movement of the first shaping member 161 and the second shaping member 162 is achieved.
[0049] In some embodiments, both the first shaping member 161 and the second shaping member 162 are heating members. The heating member may be a heating block, and a heating tube, such as an electric heating tube, is provided in the heating block. Further, a temperature sensor may be provided to detect the heating temperature for adjusting the hot stamping time and temperature. Specifically, an operation screen and a temperature controller may be provided, and the hot stamping time and temperature can be adjusted through the operation screen and the temperature controller. Among them, the operation screen and the temperature controller are conventional technical devices and are well-known to those skilled in the art, so they will not be elaborated here.
[0050] To block heat transfer to the second driving mechanism 13, a heat insulation member 15 may be provided between the first shaping member 161 and the second driving mechanism 13, and a heat insulation member 15 may be provided between the second shaping member 162 and the second driving mechanism 13. Among them, the heat insulation member 15 may be a heat insulation board, such as a heat insulation board made of materials such as glass fiber, asbestos, rock wool, and silicate, or aerogel felt, vacuum board, etc. Further, a combination of a hollow structure and the heat insulation member 15 can also be used to block heat transfer to the second driving mechanism 13, such as providing a heat insulation member 15 and a hollow structure between the first shaping member 161 and the second driving mechanism 13, and providing a heat insulation member 15 and a hollow structure between the second shaping member 162 and the second driving mechanism 13.
[0051] In some embodiments, a positioning mechanism 4 is further included. The positioning mechanism 4 is configured to be able to position the placement position of the battery cell on the positioning member 10. Specifically, the positioning mechanism 4 includes a cylinder, a positioning push plate, and a mounting seat. The cylinder is installed on the mounting seat, and the positioning push plate is installed at the end of the piston rod of the cylinder and is aligned with the battery cell, so as to be able to push the battery cell to move in the Figure 4 left and right directions on the positioning member 10, and push the battery cell to the preset placement position on the positioning member 10 for positioning, that is, the positioning mechanism 4 can push the battery cell in the Figure 4Move in the left - right direction in it. After moving to the position with a preset moving value, the positioning of the battery cell is completed.
[0052] To better understand the technical concept of the present utility model, the preferred technical solutions of the present utility model will be described below in combination with relatively comprehensive technical features.
[0053] Such as Figures 4 to 6As shown in the figure, a preferred embodiment of the present utility model provides a diaphragm shaping device, which includes a limiting mechanism 1, a shaping component, and a positioning mechanism 4. The shaping component includes a first shaping component 2 and a second shaping component 3. The first shaping component 2 and the second shaping component 3 are respectively arranged on the left and right sides of the limiting mechanism 1. The first shaping component 2 and the second shaping component 3 are mirror structures and are basically the same in structure. The limiting mechanism 1 includes a limiting member 7, a first support frame 71, a second support frame 72, a fixing component 8, a first sliding mechanism 9, a positioning member 10, and a second sliding mechanism 11. The fixing component 8 and the first support frame 71 are respectively installed on the second support frame 72. The positioning member 10 is installed on the fixing component 8. The fixing component 8 can be a vacuum adsorption device. Correspondingly, a number of through holes are opened on the positioning member 10, and these through holes are communicated with the vacuum adsorption device. The battery cell is adsorbed and fixed on the positioning member 10 by means of vacuum adsorption. The limiting member 7 is installed on the first sliding mechanism 9. The positioning member 10 and the limiting member 7 are arranged oppositely. The first sliding mechanism 9 can be a cylinder. The first sliding mechanism 9 is installed on the first support frame 71. The first sliding mechanism 9 can drive the limiting member 7 to move in the up and down direction, so that the limiting member 7 moves towards the positioning member 10 or the limiting member 7 moves away from the positioning member 10. The second support frame 72 is slidably arranged on the second sliding mechanism 11. Specifically, the second sliding mechanism 11 can include a servo motor and a guide rail slider mechanism. A guide rail is arranged on the second sliding mechanism 11. A guide slider is arranged at the bottom of the second support frame 72 and is used in cooperation with the guide rail on the second sliding mechanism 11. Driven by the servo motor, the second support frame 72 can move along the guide rail on the second sliding mechanism 11. The shaping component includes a first driving mechanism 12, a second driving mechanism 13, and a mounting frame 14. The mounting frame 14 is arranged at the driving end of the first driving mechanism 12. The second driving mechanism 13 is arranged on the mounting frame 14. The shaping members include a first shaping member 161 and a second shaping member 162. The first shaping member 161 and the second shaping member 162 are arranged oppositely. The second driving mechanism 13 can be two. The driving end of one second driving mechanism 13 is provided with the first shaping member 161, and the driving end of the other second driving mechanism 13 is provided with the second shaping member 162, so as to be able to drive the first shaping member 161 and the second shaping member 162 to move relatively, so that the first shaping member 161 and the second shaping member 162 are attached or separated. Both the first shaping member 161 and the second shaping member 162 are heating members. The heating member can be a heating block, and a heating tube is arranged in the heating block. Among them, the first driving mechanism 12 and the second driving mechanism 13 can be cylinders.
[0054] Based on the above technical solution, the working process of the diaphragm shaping device of the present utility model is as follows:
[0055] Place the battery cell on the positioning member 10, control the cylinder of the positioning mechanism 4 to extend, push the battery cell, adjust the position of the battery cell on the positioning member 10, complete the positioning of the battery cell on the positioning member 10, and control the cylinder of the positioning mechanism 4 to retract. Among them, the positioning mechanism 4 can be arranged on the left or right side of the limiting mechanism 1, and both can realize the positioning and adjustment of the battery cell on the positioning member 10.
[0056] Drive the limiting member 7 to move downward through the first sliding mechanism 9, press on the battery cell, and fix and limit the battery cell.
[0057] Adjust the position of the limiting mechanism 1 through the second sliding mechanism 11, drive the battery cell to move in the front-rear direction, so that the position of the battery cell can be aligned with the shaping components on both sides. Push the shaping components towards the battery cell through the first driving mechanism 12. When the edge of the battery cell is located between the first shaping member 161 and the second shaping member 162, stop the movement of the shaping components. Drive the first shaping member 161 and the second shaping member 162 to move towards each other through the second driving mechanism 13, clamp the edge of the battery cell between the first shaping member 161 and the second shaping member 162, and use the heating tubes in the first shaping member 161 and the second shaping member 162 to thermally iron the battery cell, so that the diaphragm 6 in the edge area of the battery cell is turned inwards by a certain angle. This angle can be changed by replacing the first shaping member 161 and the second shaping member 162, and the diaphragm 6 will not rebound after shaping. The thermal ironing time and temperature can be adjusted through the operation screen and the temperature controller. After thermal ironing, control the first shaping member 161 and the second shaping member 162 to separate, and move the limiting mechanism 1 back to the initial position through the second sliding mechanism 11. Move the shaping components back to the initial position through the first driving mechanism 12.
[0058] The diaphragm shaping device of the present utility model is composed of one motor and multiple cylinders, with a simple structure, convenient operation, accurate positioning, obvious effect, and the effect after thermal ironing and shaping is as Figure 3 shown. The diaphragm 6 will be turned inwards by a certain angle. This angle can be changed by replacing the first shaping member 161 and the second shaping member 162, and the diaphragm will not rebound after shaping. Prevent the diaphragm from warping or turning outwards when being encapsulated into the shell, and ensure the battery quality and manufacturing yield.
[0059] In the above various embodiments, the first shaping member 161 and the second shaping member 162 mainly adopt the method of hot pressing to realize the shaping of the diaphragm. It can be understood that the first shaping member 161 and the second shaping member 162 can also directly adopt the cold pressing method, and the cold pressing method can also be used to realize the shaping of the diaphragm. Or, the diaphragm shaping device of the present utility model can also adopt other methods that can realize the shaping of the diaphragm. These simple changes all belong to the protection scope of the present utility model.
[0060] The present utility model also provides a battery production line, which is provided with the diaphragm shaping device described in any one of the above various embodiments.
[0061] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, including combinations of each specific technical feature in any suitable manner. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods. However, these simple modifications and combinations should equally be regarded as the content disclosed by the present utility model and all fall within the protection scope of the present utility model.
Claims
1. A diaphragm shaping device, characterized in that: The invention comprises a shaping component, wherein the shaping component comprises a shaping piece, wherein the shaping piece comprises a first shaping piece (161) and a second shaping piece (162) arranged opposite to each other, wherein a first shaping chamfer α1 is formed on a surface of the first shaping piece (161) relative to the second shaping piece (162), and a second shaping chamfer α2 is formed on a surface of the second shaping piece (162) relative to the first shaping piece (161), and the shaping piece is used for shaping a diaphragm (6) of a battery cell.
2. The diaphragm shaping device according to claim 1, characterized in that: The invention also comprises a limiting mechanism (1), wherein the limiting mechanism (1) comprises a limiting member (7), a fixing assembly (8) and a positioning member (10), wherein the positioning member (10) is mounted on the fixing assembly (8), the fixing assembly (8) is used to fix the battery cell on the positioning member (10), the positioning member (10) is used to support the battery cell, and the limiting member (7) is arranged relative to the positioning member (10) to limit the battery cell.
3. The diaphragm shaping device according to claim 2, characterized in that: The fixing component (8) is a vacuum adsorption device.
4. The diaphragm shaping device according to claim 3, characterized in that: The positioning member (10) is provided with a through hole which is connected to the vacuum adsorption device.
5. The diaphragm shaping device according to claim 2, characterized in that: The limiting mechanism (1) further comprises a first support frame (71), a second support frame (72) and a first sliding mechanism (9); the fixing assembly (8) and the first support frame (71) are both mounted on the second support frame (72); the limiting member (7) is mounted on the first sliding mechanism (9); and the first sliding mechanism (9) is mounted on the first support frame (71), so that the limiting member (7) moves toward or away from the positioning member (10).
6. The diaphragm shaping device according to claim 5, characterized in that: The limiting mechanism (1) further comprises a second sliding mechanism (11), and the second supporting frame (72) is slidably arranged on the second sliding mechanism (11).
7. The diaphragm shaping device according to any one of claims 2 to 6, characterized in that: The shaping assembly further comprises a first driving mechanism (12), a second driving mechanism (13) and a mounting frame (14); the mounting frame (14) is arranged at a driving end of the first driving mechanism (12); the second driving mechanism (13) is arranged on the mounting frame (14); and the second driving mechanism (13) is configured to enable the first shaping member (161) and the second shaping member (162) to move relative to each other.
8. The diaphragm shaping device according to claim 7, characterized in that: There are two second driving mechanisms (13), one of which is used to drive the first shaping member (161), and the other of which is used to drive the second shaping member (162).
9. The diaphragm shaping device according to claim 8, characterized in that: A heat insulating member (15) is provided between the second shaping member (162) and the second driving mechanism (13), and between the first shaping member (161) and the second driving mechanism (13).
10. The diaphragm shaping device according to claim 7, characterized in that: The first shaping member (161) and the second shaping member (162) are both heating members.
11. The diaphragm shaping device according to any one of claims 2 to 6, characterized in that: One shaping component is arranged on each side of the limiting mechanism (1).
12. The diaphragm shaping device according to any one of claims 2 to 6, characterized in that: It also comprises a positioning mechanism (4), wherein the positioning mechanism (4) is configured to be able to position the placement of the battery cell on the positioning member (10).
13. The diaphragm shaping device according to any one of claims 1 to 6, characterized in that: The first shaping chamfer angle α1 is 100-170°, and the second shaping chamfer angle α2 is 100-170°.
14. The diaphragm shaping device according to any one of claims 1 to 6, characterized in that: The first shaping chamfer angle α1 is 100-170°, and the second shaping chamfer angle α2 is 100-170°.
15. A battery production line, characterized in that: A diaphragm shaping device according to any one of claims 1 to 14 is provided.