Battery cell film coating device

Abstract

The utility model relates to the technical field of new energy batteries, in particular to a battery cell coating device which comprises a first clamping device, a first driving device and a first liquid container, the first clamping device is used for clamping and fixing a to-be-coated battery cell, the first driving device is connected with the first clamping device, and the first liquid container is connected with the first clamping device. The first liquid container is used for containing insulating liquid. In the battery cell coating device provided by the invention, the first driving device drives the first clamping device to extend the battery cell into the insulating liquid in the first liquid container so as to coat the surface of the battery cell, so that the problem that the traditional battery cell coating equipment adopts a gluing or glue spraying mode to coat the film is solved; and the problems of poor coating, wrinkles on the surface of a coating film and non-uniform thickness of the coating film are solved.

Description

Technical Field

[0001] This application relates to the technical field of new energy batteries, and in particular to a core film wrapping device. Background Art

[0002] When the outer shell of the core is exposed to the external environment, it is easily affected by the external environment, resulting in problems such as short circuit of the core, affecting the service life of the core. Usually, an insulating film is used to cover the surface of the core outer shell to reduce the contact between the core and the external environment.

[0003] Traditional core film wrapping equipment generally uses the method of pasting glue or spraying glue for film wrapping. When using the pasting glue process, due to the thin insulating adhesive tape and the irregular shape of the core, the insulating adhesive tape will be poorly wrapped. And when using the pasting glue process and the spraying glue process, due to the thin insulating adhesive tape and the difference in the fineness of the glue spray, the appearance of the core generally has problems such as wrinkles and uneven thickness, thus extremely affecting the appearance of the core. Utility Model Content

[0004] This application provides a core film wrapping device, aiming to solve the problems of poor wrapping, wrinkles on the film wrapping surface and uneven film wrapping thickness caused by using the method of pasting glue or spraying glue for film wrapping in traditional core film wrapping equipment.

[0005] To solve the above technical problems, this application proposes a core film wrapping device, which includes:

[0006] A first clamping device for clamping and fixing the core to be film wrapped;

[0007] A first driving device connected to the first clamping device;

[0008] A first liquid container for containing insulating liquid;

[0009] Wherein, the first driving device drives the first clamping device to extend the core into the insulating liquid in the first liquid container.

[0010] Further, the core film wrapping device further includes a first drying oven for drying the core with insulating liquid.

[0011] Further, the core film wrapping device further includes a first movement assembly, the first clamping device is connected to the first movement assembly, and the first movement assembly can drive the first clamping device to flow between the first liquid container and the first drying oven.

[0012] Further, the core film wrapping device further includes a flipping device for rotating the core.

[0013] Further, the battery cell film coating device further includes a second clamping device, a second driving device, a second liquid container, a second drying oven, and a second movement assembly. The second clamping device is connected to the second driving device and the second movement assembly. The second clamping device is used to clamp and fix the battery cell rotated by the flipping device, and sequentially pass through the second liquid container and the second drying oven under the drive of the second movement assembly and the second driving device.

[0014] Further, the battery cell film coating device further includes a carrying tray for accommodating a plurality of the battery cells.

[0015] Further, the battery cell film coating device further includes a first transport rack disposed corresponding to the first liquid container. The first clamping device clamps the battery cell from the first transport rack.

[0016] Further, the battery cell film coating device further includes a second transport rack disposed corresponding to the second liquid container. After the flipping device rotates the battery cell, it places the battery cell on the second transport rack.

[0017] Further, the battery cell film coating device further includes a third transport rack disposed corresponding to the second drying oven. The second clamping device places the battery cell dried by the second drying oven on the third transport rack.

[0018] Further, the flipping device includes a flipping jaw and a robotic arm. The flipping jaw is rotatably connected to the robotic arm, and the robotic arm is used to drive the flipping jaw to move freely in space.

[0019] The beneficial effects of the present application are as follows: In the battery cell film coating device provided by the present application, after the first clamping device clamps and fixes the battery cell to be film-coated, under the drive of the first driving device, the first clamping device extends the battery cell into the insulating liquid in the first liquid container, so that an insulating film is formed on the surface of the battery cell. Compared with the traditional battery cell film coating equipment using spray glue or sticker glue process, the battery cell film coating device provided by the present application can form an insulating film with good coating effect on the surface of the battery cell, especially for the surface of irregular square shell battery cells, and the appearance of the insulating film is flat and the thickness is uniform. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0021] Figure 1 It is a schematic perspective view of the cell film wrapping device in an embodiment of the present utility model;

[0022] Figure 2 It is a schematic perspective view of the first clamping device, the first liquid container, and the first drying oven in an embodiment of the present utility model;

[0023] Figure 3 It is a schematic perspective view of the first clamping device, the first driving device, and the first moving component in an embodiment of the present utility model;

[0024] Figure 4 It is a schematic perspective view of the robotic arm and the flipping gripper in an embodiment of the present utility model;

[0025] Figure 5 It is a schematic perspective view of the second clamping device, the second driving device, and the second moving component in an embodiment of the present utility model.

[0026] Explanation of reference numerals: 10, the first transport rack; 20, the second transport rack; 30, the third transport rack; 40, the carrying tray; 100, the first clamping device; 110, the first fixing plate; 120, the first cylinder; 130, the second cylinder; 140, the first connecting plate; 150, the second connecting plate; 200, the second clamping device; 210, the second driving device; 300, the first driving device; 310, the first vertical cylinder; 320, the second vertical cylinder; 400, the first liquid container; 500, the second liquid container; 600, the first drying oven; 700, the second drying oven; 800, the robotic arm; 810, the flipping gripper; 900, the first moving component; 901, the first support column; 902, the second support column; 903, the slide rail motor; 904, the assembly plate; 905, the horizontal cylinder; 906, the guide rail; 907, the second fixing plate; 908, the third fixing plate; 1000, the second moving component. Detailed implementation manners

[0027] In order to make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "the above" and "the" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of this application means the presence of features, integers, steps, operations, elements, modules, components and / or assemblies, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any one of the modules and all combinations of one or more related listed items.

[0029] Those skilled in the art can understand that, unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the general understanding of those of ordinary skill in the field to which this application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as herein.

[0030] As Figure 1 As shown, this application provides a cell film wrapping device. The cell film wrapping device includes a first clamping device 100, a first driving device 300, and a first liquid container 400. The first clamping device 100 is used to clamp and fix the cell to be film wrapped. The first driving device 300 is connected to the first clamping device 100. The first liquid container 400 is used to contain insulating liquid. Among them, the first driving device 300 drives the first clamping device 100 to insert the cell into the insulating liquid in the first liquid container 400.

[0031] In a specific embodiment, the first clamping device 100 includes a first fixing plate 110, a first cylinder 120, a second cylinder 130, a first connecting plate 140, and a second connecting plate 150. The first fixing plate 110 is rectangular and horizontally arranged. The first cylinder 120 and the second cylinder 130 are both fixedly assembled on the lower surface of the first fixing plate 110. The first cylinder 120 and the second cylinder 130 are both horizontally arranged, and the output ends of the first cylinder 120 and the second cylinder 130 are in opposite directions. Both the first connecting plate 140 and the second connecting plate 150 are rectangular. There are two first connecting plates 140 and two second connecting plates 150, and both the first connecting plate 140 and the second connecting plate 150 are vertically arranged. The two first connecting plates 140 are spaced apart and fixedly connected to the output end of the first cylinder 120. The first cylinder 120 can drive the first connecting plate 140 to translate in the horizontal direction. The two second connecting plates 150 are spaced apart and fixedly connected to the output end of the second cylinder 130. The second cylinder 130 can drive the second connecting plate 150 to translate in the horizontal direction. The first cylinder 120 and the second cylinder 130 can drive the first connecting plate 140 and the second connecting plate 150 to approach or move away from each other respectively, so as to facilitate clamping or placing the battery cell.

[0032] The first driving device 300 includes a first vertical cylinder 310 and a second vertical cylinder 320. The first vertical cylinder 310 and the second vertical cylinder 320 are both vertically arranged. The second vertical cylinder 320 is fixedly assembled with the output end of the first vertical cylinder 310, and the output end of the second vertical cylinder 320 is fixedly assembled with the upper surface of the first fixing plate 110. The first vertical cylinder 310 and the second vertical cylinder 320 are both used to adjust the horizontal height of the first clamping device 100.

[0033] The first liquid container 400 is an irregular-shaped container with an opening on the top surface. An insulating liquid is filled in the first liquid container 400. Preferably, the insulating liquid is liquid rubber. In another specific embodiment, the insulating liquid can also be other insulating materials. Preferably, the volume of the first liquid container 400 near the bottom is smaller than the volume near the top opening, so that the cross-section of the liquid container is trapezoidal, in order to save the amount of insulating liquid in the liquid container. In another specific embodiment, the shape of the liquid container is not limited. A concentration detection device and a temperature detection device are provided in the first liquid container 400, so as to monitor the state of the insulating liquid in the liquid container.

[0034] In a specific embodiment, the first liquid container 400 is located below the first clamping device 100. After the first clamping device 100 clamps and fixes the battery cell, the first driving device 300 drives the first clamping device 100 to move towards the first liquid container 400, so that a part of the battery cell to be coated extends into the insulating liquid in the first liquid container 400, and at this time, the first clamping device 100 does not enter the insulating liquid, so that an insulating film is formed on the surface of the part of the battery cell to be coated, so as to complete the partial coating of the battery cell. If the entire surface of the battery cell needs to be coated, after the above partial coating of the battery cell, the battery cell is manually rotated so that the first clamping device 100 clamps and fixes the part coated with the insulating film, and then the first driving device 300 drives the first clamping device 100 to move towards the first liquid container 400, so that the uncoated part of the battery cell extends into the insulating liquid, thereby completing the overall coating of the battery cell.

[0035] As Figure 2 shown, the battery cell coating device further includes a first drying oven 600, and the first drying oven 600 is used to dry the battery cell with insulating liquid.

[0036] In a specific embodiment, the battery cell coating device further includes a first drying oven 600, the temperature and humidity of the first drying oven 600 are controllable, the first drying oven 600 is arranged adjacent to the first liquid container 400, the upper and lower halves of the battery cell are the first part and the second part of the battery cell respectively. After the first clamping device 100 clamps and fixes the first part, under the drive of the first driving device 300, the second part of the battery cell is extended into the insulating liquid in the first liquid container 400. After the battery cell is soaked for a preset time, the first clamping device 100 is lifted from the insulating liquid under the drive of the first driving device 300, so that a layer of insulating liquid is coated on the surface of the second part of the battery cell, and the first clamping device 100 transports the battery cell to the first drying oven 600 for drying, so as to quickly form an insulating film on the surface of the second part.

[0037] As Figure 3 shown, the battery cell coating device further includes a first moving assembly 900, the first clamping device 100 is connected to the first moving assembly 900, and the first moving assembly 900 can drive the first clamping device 100 to flow between the first liquid container 400 and the first drying oven 600.

[0038] In a specific embodiment, the battery cell coating device further includes a first moving assembly 900, and the first moving assembly 900 includes a first support column 901, a second support column 902, a slide rail motor 903, a first slider, an assembly plate 904, a transverse cylinder 905, a guide rail 906, a second slider, a second fixing plate 907, and a third fixing plate 908.

[0039] The first support column 901 and the second support column 902 are vertically arranged at intervals. The slide rail motor 903 is horizontally arranged and fixedly assembled with the first support column 901 and the second support column 902 to fix the slide rail motor 903 at a preset horizontal height. The slide rail motor 903 includes a first slide rail which is horizontally arranged. A number of first sliders are arranged on the first slide rail, and the first sliders are slidably assembled with the first slide rail. The slide rail motor 903 can drive the first sliders to move horizontally along the first slide rail. The assembly plate 904 is rectangular and fixedly assembled with the first sliders. A transverse air cylinder 905 and a guide rail 906 are fixedly assembled on the surface of the assembly plate 904. The transverse air cylinder 905 is horizontally arranged. The guide rail 906 is linear and arranged in the same direction as the transverse air cylinder 905. There are two guide rails 906 which are arranged in parallel at intervals. Second sliders are slidably assembled on the guide rails 906. The second fixing plate 907 is rectangular and vertically arranged. The second fixing plate 907 is fixedly assembled with the second sliders, and the output end of the transverse air cylinder 905 is fixedly connected to the second fixing plate 907, so that the transverse air cylinder 905 can drive the second fixing plate 907 to make a translational movement in the horizontal direction. The third fixing plate 908 is rectangular and horizontally arranged. The third fixing plate 908 is perpendicularly connected to the second fixing plate 907. The first vertical air cylinder 310 is fixedly assembled with the third fixing plate 908, so that the first clamping device 100 is connected to the first moving component 900 through the first driving component, and further the first moving component 900 can drive the first clamping device 100 to flow between the first liquid container 400 and the first drying oven 600.

[0040] As Figure 4 shown, the battery cell film wrapping device further includes a flipping device for rotating the battery cell. The flipping device includes a flipping jaw 810 and a robotic arm 800. The flipping jaw 810 is rotatably connected to the robotic arm 800, and the robotic arm 800 is used to drive the flipping jaw 810 to move freely in space.

[0041] In a specific embodiment, the battery cell film wrapping device further includes a flipping device. The flipping device includes a flipping jaw 810 and a robotic arm 800. The flipping jaw 810 is rotatably assembled with the robotic arm 800. The robotic arm 800 has multiple degrees of freedom, so that the robotic arm 800 can drive the flipping jaw 810 to move freely in space. After the first drying oven 600 dries the battery cell, the robotic arm 800 drives the flipping jaw 810 to clamp and fix the second part of the battery cell on the first clamping device 100, and the robotic arm 800 drives the flipping jaw 810 to rotate by degrees, so that the positions of the first part and the second part of the battery cell are swapped.

[0042] As Figure 5As shown, the battery cell coating device further includes a second clamping device 200, a second driving device 210, a second liquid container 500, a second drying oven 700, and a second moving assembly 1000. The second clamping device 200 is connected to the second driving device 210 and the second moving assembly 1000. The second clamping device 200 is used to clamp and fix the battery cell after being rotated by the flipping device, and under the drive of the second moving assembly 1000 and the second driving device 210, it sequentially passes through the second liquid container 500 and the second drying oven 700.

[0043] In a specific embodiment, the battery cell coating device further includes a second clamping device 200, a second driving device 210, a second liquid container 500, a second drying oven 700, and a second moving assembly 1000. The positional and structural relationship among the first clamping device 100, the first driving device 300, the first liquid container 400, the first drying oven 600, and the first moving assembly 900 is the same as that among the second clamping device 200, the second driving device 210, the second liquid container 500, the second drying oven 700, and the second moving assembly 1000. After the flipping device rotates the battery cell by 180 degrees, the up-and-down positional relationship between the first part and the second part of the battery cell is reversed. The second clamping device 200 clamps and fixes the second part of the rotated battery cell. The second driving device 210 and the second moving assembly 1000 drive the second clamping device 200 to insert the first part of the battery cell into the second liquid container 500, so that a layer of insulating liquid is coated on the surface of the first part. Then, the second driving device 210 and the second moving assembly 1000 further drive the second clamping device 200 to transport the battery cell into the second drying oven 700, so as to quickly form a layer of insulating film on the surface of the first part, thereby realizing coating a layer of insulating film on both the first part and the second part of the battery cell.

[0044] As Figure 1 shown, the battery cell coating device further includes a carrier tray 40, and the carrier tray 40 is used to accommodate a plurality of battery cells.

[0045] In a specific embodiment, the carrier tray 40 is a cuboid-shaped container with one open side. The carrier tray 40 is customized according to the shape of the battery cell, so that a plurality of battery cells can be accommodated in the carrier tray 40 at the same time, and the battery cells are placed vertically in the carrier tray 40.

[0046] As Figure 1As shown, the battery cell film wrapping device further includes a first transport rack 10, the first transport rack 10 is arranged corresponding to the first liquid container 400, and the first clamping device 100 clamps the battery cell from the first transport rack 10. The battery cell film wrapping device further includes a second transport rack 20, the second transport rack 20 is arranged corresponding to the second liquid container 500, and the turning device places the battery cell on the second transport rack 20 after rotating the battery cell. The battery cell film wrapping device further includes a third transport rack 30, the third transport rack 30 is arranged corresponding to the second drying oven 700, and the second clamping device 200 places the battery cell dried by the second drying oven 700 on the third transport rack 30.

[0047] In a specific embodiment, the battery cell film wrapping device further includes a first transport rack 10, the first transport rack 10 is arranged close to the first liquid container 400, a carrying tray 40 is provided on the first transport rack 10, and a plurality of battery cells to be film wrapped are placed in the carrying tray 40.

[0048] The battery cell film wrapping device further includes a second transport rack 20, the second transport rack 20 is arranged close to the turning device, a carrying tray 40 is provided on the second transport rack 20, and the carrying tray 40 is used to place the battery cell after being rotated by the turning device.

[0049] The battery cell film wrapping device further includes a third transport rack 30, the third transport rack 30 is arranged close to the second drying oven 700, a carrying tray 40 is provided on the third transport rack 30, and the carrying tray 40 is used to place the battery cell dried by the second drying oven 700.

[0050] In summary, the battery cell is divided into an upper first part and a lower second part. The first clamping device 100 clamps the first part of the battery cell. Driven by the first driving device 300 and the first moving component 900, the first clamping device 100 immerses the second part of the battery cell into the insulating liquid and then lifts it, so that the insulating liquid covers the surface of the second part of the battery cell. The first driving device 300 and the first moving component 900 further drive the first clamping device 100 to move into the first drying oven 600 for drying, so as to quickly form an insulating film on the surface of the second part of the battery cell. Subsequently, the robotic arm 800 drives the flipping gripper 810 to clamp and fix the second part of the battery cell on the first clamping device 100, and rotates the battery cell so that the positions of the first part and the second part of the battery cell are swapped up and down. The second clamping device 200 clamps the second part of the battery cell. Driven by the second driving device 210 and the second moving component 1000, the second clamping device 200 immerses the first part of the battery cell into the insulating liquid and then lifts it, so that the insulating liquid covers the surface of the first part of the battery cell. The second driving device 210 and the second moving component 1000 further drive the second clamping device 200 to move into the second drying oven 700 for drying, so as to quickly form an insulating film on the surface of the first part of the battery cell. Through two times of immersing in the insulating liquid and drying, the full coverage of the battery cell surface is achieved. By setting the number of immersion times of the battery cell into the insulating liquid, the control of the number of insulating film layers can be realized. Compared with the traditional gluing and spraying processes, the battery cell coating device provided in this application can form an insulating film with a good coating effect on the surface of the battery cell, and the appearance of the insulating film is flat and the thickness is uniform. At the same time, it can also effectively reduce the waste of raw materials.

[0051] The above are only the preferred embodiments of this application, and do not limit the patent scope of this application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of this application by the same token.

Claims

1. A core film wrapping device, characterized in that, Comprising: A first clamping device for clamping and fixing the battery cell to be coated with film; A first driving device connected to the first clamping device; A first liquid container for containing insulating liquid; Wherein, the first driving device drives the first clamping device to insert the battery cell into the insulating liquid in the first liquid container.

2. The cell film coating device according to claim 1, wherein, The battery cell film coating device further includes a first drying oven for drying the battery cell with insulating liquid.

3. The cell film coating device according to claim 2, characterized in that, The battery cell film coating device further includes a first movement assembly, the first clamping device is connected to the first movement assembly, and the first movement assembly can drive the first clamping device to transfer between the first liquid container and the first drying oven.

4. The cell film coating device according to claim 3, characterized in that, The battery cell film coating device further includes a flipping device for rotating the battery cell.

5. The cell film wrapping device according to claim 4, characterized in that, The battery cell film coating device further includes a second clamping device, a second driving device, a second liquid container, a second drying oven and a second movement assembly. The second clamping device is connected to the second driving device and the second movement assembly. The second clamping device is used to clamp and fix the battery cell rotated by the flipping device, and under the drive of the second movement assembly and the second driving device, it sequentially passes through the second liquid container and the second drying oven.

6. The cell film coating device according to claim 1, wherein, The battery cell film coating device further includes a carrying tray for accommodating a plurality of the battery cells.

7. The cell film wrapping device according to claim 1, characterized in that The battery cell film coating device further includes a first transport rack arranged corresponding to the first liquid container, and the first clamping device clamps the battery cell from the first transport rack.

8. The cell film wrapping device according to claim 5, wherein, The battery cell film coating device further includes a second transport rack arranged corresponding to the second liquid container, and the flipping device places the rotated battery cell on the second transport rack.

9. The cell film wrapping device according to claim 5, wherein, The battery cell film coating device further includes a third transport rack arranged corresponding to the second drying oven, and the second clamping device places the battery cell dried by the second drying oven on the third transport rack.

10. The core film wrapping device according to claim 4, characterized in that, The flipping device includes a flipping jaw and a robotic arm. The flipping jaw is rotatably connected to the robotic arm, and the robotic arm is used to drive the flipping jaw to move freely in space.

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