Formation waistcoat mechanism, formation clamp, formation device and production line

Abstract

The utility model discloses a formation waistcoat mechanism, a formation clamp, a formation device and a production line, the formation waistcoat mechanism comprises a fixing part, a battery cell pressing plate and a flexible pad structure, and the fixing part is used for arranging a battery cell; the battery cell pressing plate is arranged on the fixing part, and the battery cell pressing plate is provided with a first surface which faces the fixing part and is used for applying force; the flexible pad structure is arranged on the battery cell pressing plate and protrudes out of the first surface in the direction of the fixing component, and when the battery cell pressing plate is driven, pressure acting on the battery cell can be provided through the flexible pad structure. The battery cell is arranged on the fixing part to be in a chargeable state, and when the battery cell pressing plate is used for applying high-pressure clamping force to the battery cell, the effect of concentrating pressure to the position of the battery cell is achieved through the arrangement of the flexible pad structure, so that the battery cell can be protected, and the probability that the battery cell is damaged during pressurization is reduced.

Description

Technical Field

[0001] This application relates to the field of battery cell manufacturing technology, and in particular to a formation vest mechanism, formation fixture, formation device and production line. Background Technology

[0002] During the formation process, battery cells need to be clamped using fixtures to achieve formation under high pressure, while continuously charging the cells during formation. However, due to the small size of some battery cells, directly placing them on large-area shelves makes it difficult to ensure that the cells can withstand precise pressure output. In addition, some irregularly shaped cells, such as curved cells, are easily damaged if pressure is applied directly through shelves. Summary of the Invention

[0003] The purpose of this application is to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a forming jacket mechanism that not only ensures that the battery cell can withstand precise pressure output, but also protects the battery cell and reduces the probability of damage to the battery cell during pressurization.

[0004] This application also proposes a chemical formation fixture that includes the aforementioned chemical formation vest mechanism.

[0005] This application also proposes a formation apparatus including the aforementioned formation fixture.

[0006] This application also proposes a production line including the above-mentioned chemical formation device.

[0007] According to the first aspect of the present application, the chemically formed vest mechanism includes:

[0008] Fixing components are used to mount the battery cells;

[0009] A cell pressure plate is disposed on the fixing component, the cell pressure plate having a first surface facing the fixing component and used for applying force;

[0010] A flexible pad structure is disposed on the cell pressure plate and protrudes from the first surface toward the fixing component. When the cell pressure plate is driven, the flexible pad structure can provide pressure acting on the cell.

[0011] The chemically formed vest mechanism according to the first aspect of this application has at least the following beneficial effects: by placing the battery cell on the fixed component to make it in a chargeable state, and by applying a high-pressure clamping force to the battery cell using the battery cell pressure plate, the flexible pad structure is used to concentrate the pressure at the battery cell position, thereby not only protecting the battery cell, but also reducing the probability of damage to the battery cell when pressurized.

[0012] According to the first aspect of the embodiment of this application, the flexible pad structure has a second surface that contacts the battery cell, and the second surface is contoured to the battery cell.

[0013] According to the first aspect of the embodiment of this application, the fixing component includes a cell base and a cell fixing assembly, the cell fixing assembly is disposed on the cell base, and the cell fixing assembly cooperates with the cell base to fix the cell.

[0014] According to the first aspect embodiment of the present application, the battery cell fixing assembly has a third surface that contacts the battery cell and the third surface is contoured to the battery cell.

[0015] According to the first aspect embodiment of the present application, the forming vest mechanism includes a fixing component comprising a guide structure disposed between the cell base and the cell pressure plate, the guide structure being used to guide the movement of the cell pressure plate.

[0016] According to the first aspect embodiment of the present application, a magnetic positioning structure is provided between the cell base and the cell pressure plate. When the cell pressure plate is driven to a preset position, the magnetic positioning structure can limit the relative position between the cell base and the cell pressure plate.

[0017] The chemical formation fixture according to a second aspect of this application includes: a chemical formation vest mechanism as described in a first aspect of this application.

[0018] According to the second aspect of the present application, the formation fixture includes a push plate and multiple layers, each layer being provided with the formation vest mechanism. The layers are arranged at intervals along a first direction. When the push plate moves toward the layers, it enables each layer to move along the first direction to close and clamp the battery cell. Each layer is provided with a roller support and a roller drive component. The roller support is provided with a roller body and a probe assembly. When the layers move along the first direction, the roller drive component moves synchronously, so that the roller drive component can act on the roller body adjacent downstream along the first direction. The roller body rolls and drives the roller support and the probe assembly to approach the battery cell.

[0019] A chemical formation apparatus according to a third aspect of this application includes: a chemical formation fixture as described in a second aspect of this application.

[0020] The production line according to the fourth aspect of this application includes: a formation apparatus as described in the third aspect of this application.

[0021] It is easy to understand that the chemical formation fixture in the second aspect embodiment of this application, the chemical formation device in the third aspect embodiment of this application, and the production line in the fourth aspect embodiment of this application all have the same technical effects as the chemical formation vest mechanism in the first aspect embodiment, and therefore will not be described again.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0025] Figure 2 for Figure 1 A schematic diagram showing the hidden battery cell pressure plate in the middle;

[0026] Figure 3 This is a schematic diagram of the chemical forming fixture in the embodiments of this application.

[0027] Figure label:

[0028] 100. Fixing component; 110. Cell base; 120. Cell fixing assembly; 130. Guide structure;

[0029] 200. Cell pressure plate; 210. Magnetic positioning structure;

[0030] 300. Flexible pad structure;

[0031] 400. Push plate;

[0032] 500, Sheet plate; 510, Roller support; 520, Roller drive component; 530, Roller body; 540, Probe assembly;

[0033] 600. Drive components. Detailed Implementation

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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. Therefore, they should not be construed as limitations on this application.

[0036] In the description of this application, "several" means one or more, "more than" means at least two, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application after considering the specific content of the technical solution.

[0038] Reference Figures 1 to 3 The chemical formation vest mechanism of the first aspect of this application is applied to a chemical formation fixture. The chemical formation vest mechanism includes a fixing component 100, a cell pressure plate 200 and a flexible pad structure 300.

[0039] The fixing component 100 is used to set the battery cell; the battery cell pressure plate 200 is disposed on the fixing component 100, and the battery cell pressure plate 200 has a first surface facing the fixing component 100 and used for applying force; the flexible pad structure 300 is disposed on the battery cell pressure plate 200 and protrudes from the first surface in the direction of the fixing component 100, and the battery cell pressure plate 200 can provide pressure acting on the battery cell through the flexible pad structure 300 when driven.

[0040] It is understandable that the fixing component 100 is used to set the battery cell, thereby fixing the battery cell on the one hand and supplying power to the battery cell on the other. Simultaneously, based on the setting of the battery cell pressure plate 200, this formation jacket mechanism, when applied to the formation fixture, can clamp the battery cell using the battery cell pressure plate 200 when the formation fixture clamps the battery cell, achieving formation under high pressure clamping action. Specifically, the first surface of the battery cell pressure plate 200 is used to apply force to the battery cell, while the other surface of the battery cell pressure plate 200 opposite to the first surface is used to receive external driving force, allowing the battery cell pressure plate 200 to pressurize the battery cell under pressure. Furthermore, to ensure that the battery cell withstands precise pressure output, the flexible pad structure 300 protrudes from the first surface of the battery cell pressure plate 200, which allows the pressure to be concentrated at the location of the battery cell.

[0041] In some embodiments, the flexible pad structure 300 can be configured as a flexible pad, flexible pad layer, etc. The flexible pad structure 300 can be directly fixed on the first surface of the cell pressure plate 200. In other embodiments, a groove can be made on the first surface, and the flexible pad structure 300 is disposed in the groove and protrudes from the first surface. The flexible pad structure 300 and its setting method can be adaptively adjusted on the basis of ensuring that the cell can withstand accurate pressure output.

[0042] Reference Figures 1 to 3 The chemically formed vest mechanism of the first aspect of this application, by placing the battery cell on the fixed component 100 to make it in a chargeable state, and by applying a high pressure clamping force to the battery cell using the battery cell pressure plate 200, achieves the effect of concentrating the pressure on the battery cell position through the setting of the flexible pad structure 300, thereby not only protecting the battery cell, but also reducing the probability of damage to the battery cell when pressurized.

[0043] To accommodate the pressurization of battery cells of different specifications and ensure that the cells can withstand precise pressure output, in some embodiments of this application, reference is made to... Figure 2 The flexible pad structure 300 has a second surface that contacts the battery cell, and the second surface is contoured to the battery cell. It is understood that a preset position of the battery cell is used to conform to the flexible pad structure 300. By setting the second surface to conform to the portion of the battery cell used to contact the flexible pad structure 300, the second surface can fully act on the battery cell, allowing pressure to be better concentrated at the battery cell location.

[0044] In some embodiments, the flexible pad structure 300 in the forming vest mechanism is adjusted according to different specifications of battery cells to accommodate the pressurization of different specifications of battery cells.

[0045] It should be noted that the fixing component 100 is used to fix the battery cell and charge the battery cell, and at the same time works with the battery cell pressure plate 200 to clamp the battery cell. Based on this, this application proposes a fixing component 100 structure that can meet the usage requirements. In some embodiments of this application, refer to Figure 2 The fixing component 100 includes a cell base 110 and a cell fixing assembly 120. The cell fixing assembly 120 is disposed on the cell base 110 and cooperates with the cell base 110 to fix the cell.

[0046] It is understood that the battery cell base 110 and the battery cell fixing assembly 120 cooperate to reliably limit and fix the battery cell, while exposing a surface for the flexible pad structure 300 to contact, thereby allowing the flexible pad structure 300 disposed on the battery cell pressure plate 200 to act on the battery cell. Furthermore, at least one of the battery cell base 110 or the battery cell fixing assembly 120 can be configured as a structure capable of charging the battery cell to meet usage requirements.

[0047] In some embodiments, the cell fixing assembly 120 is disposed on the cell base 110 and can be used to supply power to the cell. In other embodiments, the cell fixing assembly 120 is disposed on the cell base 110 and the cell base 110 can be used to supply power to the cell. In still other embodiments, the cell base 110 and the cell fixing assembly 120 are configured together and used to supply power to the cell simultaneously. While fulfilling basic functions, the specific arrangement of the fixing component 100 can be adaptively adjusted according to actual needs.

[0048] To accommodate the pressurization of battery cells of different specifications and ensure that the cells can withstand precise pressure output, in some embodiments of this application, reference is made to... Figure 2 The cell fixing assembly 120 has a third surface that contacts the cell, and the third surface is contoured to the cell. It is understood that the cell contacts the cell fixing assembly 120 at a predetermined position. By setting the third surface to conform to the portion of the cell that contacts the cell fixing assembly 120, the third surface can reliably limit the cell, allowing the cell to be reliably positioned so that pressure can be better concentrated on the cell.

[0049] In some embodiments, the cell fixing component 120 in the forming vest mechanism is adjusted according to different specifications of the cells to accommodate the pressurization of cells of different specifications.

[0050] It should be noted that, in order to ensure the cell pressure plate 200 moves more precisely along a preset trajectory during the pressurization process, in some embodiments of this application, reference is made to... Figure 1 The fixing component 100 includes a guide structure 130, which is disposed between the cell base 110 and the cell pressure plate 200. The guide structure 130 is used to guide the movement of the cell pressure plate 200.

[0051] Understandably, after adjusting the relative position of the battery cell and the flexible pad structure 300 on the battery cell pressure plate 200 according to the different specifications of the battery cell, the battery cell pressure plate 200 applies pressure to the battery cell under the guidance of the guide structure 130, thereby further ensuring that the battery cell can withstand accurate pressure output and reducing the occurrence of battery cell damage.

[0052] In some embodiments, the guide structure 130 includes a guide rod and a guide hole, with the guide rod passing through the guide hole to provide guidance. When the guide rod is located on the cell base 110, the guide hole is located on the cell pressure plate 200; conversely, when the guide hole is located on the cell base 110, the guide rod is located on the cell pressure plate 200.

[0053] In other embodiments, the guide structure 130 may also be a commonly used guide structure 130 such as a guide groove, guide surface or guide rail and act on the cell pressure plate 200, so that the cell pressure plate 200 can move more accurately along the preset trajectory during the pressurization process.

[0054] It is understandable that there are scenarios where this formation jacket mechanism needs to be removed from the formation fixture and transferred, and there is also a requirement that the relative positions between the cell base 110 and the cell pressure plate 200 do not shift during use. Therefore, in some embodiments of this application, referring to Figure 1 A magnetic positioning structure 210 is provided between the cell base 110 and the cell pressure plate 200. When the cell pressure plate 200 is driven to reach a preset position, the magnetic positioning structure 210 can limit the relative position between the cell base 110 and the cell pressure plate 200.

[0055] Understandably, based on the magnet setting, the relative position between the cell pressure plate 200 and the cell base 110 is not easily shifted during the transfer process. Also based on the magnetic attraction, the external transfer device can transfer the vest mechanism by grabbing only one of the cell pressure plate 200 or the cell base 110 of the vest mechanism, and it is not easy for it to fall off during the transfer process.

[0056] After the cell clamping plate 200 reliably clamps the cell, the magnetic positioning structure 210 uses magnetic attraction to define the relative position between the cell clamping plate 200 and the cell base 110. In some embodiments, a magnetic positioning structure 210, such as a magnet, is provided on the cell base 110, and an iron structural component is provided on the cell clamping plate 200, thereby achieving the magnetic attraction effect. In other embodiments, an iron structural component can also be provided on the cell base 110, and a magnetic positioning structure 210, such as a magnet, can be provided on the cell clamping plate 200, or magnets can be provided on both the cell base 110 and the cell clamping plate 200, which can also achieve the magnetic positioning effect.

[0057] In some embodiments of this application, this formation jacket mechanism is applied to a formation fixture, including a cell pressure plate 200, a cell fixing assembly 120, and a cell base 110. The cell fixing assembly 120 is disposed on the cell base 110 and can be used to supply power to the cell. A flexible gasket is provided on the cell pressure plate 200, protruding from the surface of the cell pressure plate 200. The flexible gasket and the surface of the cell fixing assembly 120 that contacts the cell conform to the shape of the cell. Through the above arrangement, pressure can be concentrated at the cell position, and based on the structure of the flexible gasket and the surface of the cell fixing assembly 120 that contacts the cell and conforms to the shape of the cell, the structure of the cell jacket assembly can be adjusted to accommodate the pressurization of cells of different specifications.

[0058] Specifically, the forming jacket mechanism is equipped with guide rods and guide holes, which allows the cell pressure plate 200 to move more precisely along a preset trajectory during the pressurization process. Furthermore, the forming jacket mechanism is also equipped with magnets. Based on production process requirements, the forming jacket mechanism can be separated from the forming pressurization fixture by external transfer equipment (such as an overhead crane or multi-axis robotic arm). The magnets prevent the relative position between the cell pressure plate 200 and the cell base 110 from shifting during transfer. Also, based on the magnetic attraction, the external transfer equipment can transfer the jacket mechanism by grabbing only one of the cell pressure plate 200 or the cell base 110, and it is less likely to detach during the transfer process.

[0059] Reference Figures 1 to 3 The second aspect of this application describes a formation fixture, which can be used to clamp the battery cell for formation under clamping action. The formation fixture includes the formation vest mechanism of the first aspect of this application, which enables the battery cell to withstand precise pressure output during the formation process and reduces the probability of battery cell damage.

[0060] It should be noted that the existing formation pressurization fixture also requires two sets of driving components to drive the push plate 400 to clamp the battery cell and drive the probe to approach the battery cell to achieve charging of the battery cell.

[0061] To simplify the structure and enable a single power source to perform both the pressing and clamping of the battery cell by the push plate 400 and the approach of the probe to the battery cell, a simplified structure is achieved. In some embodiments of this application, the formation fixture includes a push plate 400 and multiple layer plates 500. Each layer plate 500 is provided with a formation vest mechanism. The layer plates 500 are arranged at intervals along a first direction. When the push plate 400 moves toward the layer plates 500, it enables each layer plate 500 to move along the first direction to approach and clamp the battery cell. Each layer plate 500 is provided with a roller support 510 and a roller drive component 520. The roller support 510 is provided with a roller body 530 and a probe assembly 540. When the layer plate 500 moves along the first direction, the roller drive component 520 moves synchronously so that the roller drive component 520 can act on the adjacent roller body 530 downstream along the first direction. The roller body 530 rolls and drives the roller support 510 and the probe assembly 540 to approach the battery cell.

[0062] It is understandable that by setting roller drive components 520 and roller bodies 530 on each layer 500 as linkage drive components, the roller drive components 520 drive the roller bodies 530 and roller supports 510 of the downstream adjacent layer 500 to move, so that the probe assembly 540 set on the roller support 510 can approach the battery cell to energize the battery cell, thereby simplifying the overall structure of the fixture.

[0063] In some embodiments, reference is made to Figure 2 and Figure 3 The pusher plate 400 is moved by the drive component 600, and the pusher plate 400 moves towards the shelf plate 500. The shelf plate 500 is provided with a roller support 510 and a roller transmission component 520. The roller support 510 is provided with a roller and a probe assembly 540. The roller transmission component 520 forms a rolling surface for the rollers on the adjacent shelf plate 500 to roll. The rolling surface is at an angle to the pushing direction of the pusher plate 400. During the movement of the shelf plate 500, the roller transmission component 520 pushes the rollers of the adjacent shelf plate 500, so that the rollers of the adjacent shelf plate 500 move along the rolling surface of the roller transmission component 520, thereby driving the probe assembly 540 to move closer to the battery cell and conductive sheet. After contacting the conductive sheet, the battery cell is energized. The above-mentioned linkage-type formation pressure fixture can realize the two actions of the pusher plate 400 clamping the battery cell and the probe approaching the battery cell through a set of drive components 600.

[0064] Specifically, the driving component 600 includes a rotary drive and a screw. The rotary drive drives the screw to rotate, thereby moving the pusher plate 400. In other embodiments, it may not be limited to screw drive; for example, the pusher plate 400 may be directly driven to move closer to the shelf 500 by a linear drive, which only requires achieving the linear movement of the pusher plate 400.

[0065] The formation apparatus of the third aspect of this application can be an apparatus for forming battery cells. The formation apparatus includes the formation fixture of the second aspect of this application, which improves the formation effect of the battery cells.

[0066] The production line of the fourth aspect of this application can be a production line for preparing battery cells or batteries. The production line includes the formation apparatus of the third aspect of this application. This formation apparatus has the formation fixture of the second aspect of this application. The formation fixture of the second aspect of this application also has the formation vest mechanism of the first aspect of this application. Therefore, the formation effect is better, and the quality of the battery cells or batteries produced from the production line is also better.

[0067] It is easy to understand that the chemical formation fixture in the second aspect embodiment of this application, the chemical formation device in the third aspect embodiment of this application, and the production line in the fourth aspect embodiment of this application all have the same technical effects as the chemical formation vest mechanism in the first aspect embodiment, and therefore will not be described again.

[0068] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A formation waistcoat mechanism, characterized by, The application relates to a forming device for forming a battery cell, comprising: a fixing component for arranging a battery cell; a battery cell pressing plate arranged on the fixing component, the battery cell pressing plate having a first surface facing the fixing component and used for applying force; a flexible pad structure arranged on the battery cell pressing plate and protruding from the first surface towards the fixing component, the battery cell pressing plate being capable of providing pressure on the battery cell through the flexible pad structure when driven.

2. The formation jackup rig of claim 1, wherein: The flexible pad structure has a second surface in contact with the battery cell, the second surface being profiled with the battery cell.

3. The formation jackup rig of claim 1, wherein: The fixing component comprises a battery cell base and a battery cell fixing assembly arranged on the battery cell base, the battery cell fixing assembly cooperating with the battery cell base to fix the battery cell.

4. The formation jack-up rig of claim 3, wherein: The battery cell fixing assembly has a third surface in contact with the battery cell, the third surface being profiled with the battery cell.

5. The formation jack-up rig of claim 3, wherein: The fixing component comprises a guide structure arranged between the battery cell base and the battery cell pressing plate, the guide structure being used for guiding the movement of the battery cell pressing plate.

6. The formation jack-up rig of claim 3, wherein: A magnetic attraction positioning structure is arranged between the battery cell base and the battery cell pressing plate, the magnetic attraction positioning structure being capable of limiting the relative position between the battery cell base and the battery cell pressing plate when the battery cell pressing plate is driven to reach a preset position.

7. A formation clamp characterized by, The application relates to a forming device for forming a battery cell, comprising: The forming device is as claimed in any one of claims 1 to 6.

8. The formation clamp of claim 7, wherein: The forming device comprises a push plate and a plurality of layers, each of the layers being provided with the forming device, and each of the layers being arranged in a first direction, the push plate being capable of moving the layers in the first direction to press and clamp the battery cell, each of the layers being provided with a roller support, a roller body and a probe assembly, the roller support being capable of moving the roller body and the probe assembly close to the battery cell when the layers move in the first direction.

9. A formation device characterized by comprising: The application relates to a forming device for forming a battery cell, comprising: The forming device is as claimed in claim 7 or 8.

10. A production line, characterized in that, The application relates to a forming device for forming a battery cell, comprising: The forming device is as claimed in claim 9.

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