Lithium battery cell coating device

Abstract

The utility model relates to lithium battery electric core film -wrapping technical field especially relates to a lithium battery electric core film -wrapping device. Its technical scheme includes: the machine case, be equipped with the processing panel on the machine case, the bottom end surface of machine case installs the support block, install the rack on the processing panel, fixed mounting has the installation frame on the processing panel, be equipped with unwinding wheel and take -up wheel on the installation frame, be equipped with the film on unwinding wheel and take -up wheel, be equipped with the gas collecting hood on the processing panel, the side end surface of machine case is installed through the connecting plate and has the filter case, install the filter bag in the filter case, the filter case is linked together with the gas collecting hood through the air -exhaust pipe, the rear end surface of filter case installs the air pump. The utility model satisfies lithium battery electric core film -wrapping, can carry out dust removal treatment to the electric core that needs film -wrapping and places in the rack through the gas collecting hood cooperation filter case when film -wrapping, avoid the quality that the quality of film -wrapping after is influenced to the dust that adheres on the electric core later period.

Description

Technical Field

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

[0002] With the vigorous development of new energy technologies, lithium batteries have enabled devices to charge by virtue of the characteristics of lithium metal materials. The production and processing of the core charging and discharging component, the battery cell (including aluminum-cased cells and soft-pack cells), is particularly critical and requires a coating process to be completed by a coating device.

[0003] A search revealed that patent CN222146312U discloses a lithium battery cell coating device. While this device can control a pressing device to coat the lithium battery cells inside the battery storage box, and rotate a support plate after coating to facilitate collection of the processed batteries, and allows the batteries to be processed to be rotated to one side of the workbench for high efficiency, it faces certain technical bottlenecks in practical applications. Because the processing and storage environment for lithium battery cells is difficult to completely eliminate dust and debris, coating without cleaning can easily lead to impurities remaining, severely affecting the quality and performance stability of the finished cells. Therefore, optimization and improvement of the existing technology are urgently needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a lithium battery cell coating device, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A lithium battery cell coating device includes a chassis, a processing panel on the chassis, a support block on the bottom surface of the chassis, a placement rack on the processing panel, a mounting rack fixedly mounted on the processing panel, an unwinding roller and a winding roller on the mounting rack, and a thin film on the unwinding roller and the winding roller.

[0007] The processing panel is equipped with a gas collection hood;

[0008] A filter box is mounted on the side end face of the chassis via a connecting plate. Filter bags are installed inside the filter box. The filter box is connected to the air collection hood via an air extraction pipe. An air pump is installed on the rear end face of the filter box.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, a second drive motor is installed on the rear end face of the mounting frame. There are two second drive motors in total, and the output shafts of the two second drive motors are respectively connected to the unwinding wheel and the winding wheel.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] Two independent second drive motors drive the unwinding and rewinding rollers respectively, enabling control of the film unwinding and rewinding process. During the coating process, the unwinding and rewinding speeds and tensions can be adjusted according to the actual needs of the battery cell coating, avoiding coating wrinkles and damage caused by uneven film tension.

[0013] Furthermore, a limiting shaft is installed on the mounting bracket, and the limiting shaft limits the movement of the film.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The limiting shaft can limit the running trajectory of the film, ensuring that the film stays on the correct path during unwinding, transport and rewinding, and preventing the film from deviating or tilting.

[0016] Furthermore, a hydraulic rod is installed on the inner wall of the mounting frame, and a pressure block is installed at the output end of the hydraulic rod.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The hydraulic rod can provide adjustable pressure. By controlling the extension and retraction of the hydraulic rod, the pressure block can apply the film to the surface of the battery cell with appropriate pressure, ensuring the strength and sealing of the coating.

[0019] Furthermore, a first drive motor is installed inside the chassis, and a rotating shaft is provided on the output shaft of the first drive motor, the rotating shaft being connected to the processing panel.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The first drive motor rotates the processing panel via a shaft, allowing the battery cells placed on the mounting rack to rotate during the coating process. This allows battery cells in multiple mounting racks to be processed sequentially.

[0022] Furthermore, both ends of the gas collection hood are equipped with mounting plates via brackets, and the mounting plates are fixedly connected to the chassis.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The combination of mounting plate and bracket allows the dust collection hood to be securely installed on the chassis, ensuring the normal operation of the dust collection function during equipment operation.

[0025] Furthermore, the air pump is equipped with a discharge pipe, and the end of the discharge pipe facing away from the air pump is embedded in the filter box.

[0026] The beneficial effects of adopting the above-mentioned further solutions are:

[0027] The exhaust pipe allows the air pump to draw gas from the filter box, enabling the filter box to take in air through the exhaust pipe. During air intake, the gas collection hood can be used to remove dust from the battery cells that need to be processed, and the gas generated during dust removal is filtered through the filter bags inside the filter box.

[0028] This invention provides a lithium battery cell coating device. It has the following advantages:

[0029] The first drive motor rotates the processing panel, enabling continuous processing of multiple battery cells. Two independent second drive motors control the unwinding and rewinding rollers respectively, allowing adjustment of the film unwinding and rewinding speeds and tensions according to actual wrapping requirements. Combined with the limiting shaft restricting the film's trajectory, this effectively avoids problems such as wrinkles, damage, and misalignment during the wrapping process, ensuring the quality and aesthetics of the wrapping.

[0030] The hydraulic rod, in conjunction with the pressure block, can adjust the pressure according to the characteristics of the battery cell, ensuring that the film adheres tightly and firmly to the surface of the battery cell, enhancing the sealing performance of the coating, providing reliable protection for the lithium battery cell, and helping to improve the safety and service life of the battery cell.

[0031] In terms of environmental protection and cleanliness, the dust removal and filtration system, consisting of a gas collection hood, a gas extraction pipe, a filter box, an air pump, and a discharge pipe, can collect and filter the dust generated during the cell coating process in a timely manner, preventing the dust adhering to the cell from affecting the quality of the subsequent coating. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0033] In the attached diagram:

[0034] Figure 1 This is a side view of the present invention;

[0035] Figure 2 This is a front view schematic diagram of the present invention;

[0036] Figure 3 This is a schematic diagram of the installation of the hydraulic rod of this utility model;

[0037] Figure 4 This is a rear view schematic diagram of the present invention.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1. Chassis; 101. Support block; 2. Processing panel; 201. Placement rack; 202. First drive motor; 203. Rotating shaft; 3. Mounting frame; 301. Unwinding roller; 302. Rewinding roller; 303. Second drive motor; 304. Membrane; 305. Hydraulic rod; 306. Limiting shaft; 307. Pressing block; 4. Gas collection hood; 401. Mounting plate; 402. Bracket; 5. Filter box; 501. Connecting plate; 502. Air extraction pipe; 503. Air pump; 504. Discharge pipe. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0042] Example 1

[0043] A lithium battery cell coating device includes a chassis 1, a processing panel 2 on the chassis 1, a support block 101 mounted on the bottom surface of the chassis 1, a placement rack 201 mounted on the processing panel 2, and a mounting rack 3 fixedly mounted on the processing panel 2. The mounting rack 3 is provided with an unwinding roller 301 and a winding roller 302, and a thin film 304 is provided on the unwinding roller 301 and the winding roller 302.

[0044] The processing panel 2 is equipped with a gas collection hood 4;

[0045] A filter box 5 is installed on the side end face of the chassis 1 via a connecting plate 501. A filter bag is installed inside the filter box 5. The filter box 5 is connected to the air collection hood 4 via an air extraction pipe 502. An air pump 503 is installed on the rear end face of the filter box 5.

[0046] The rear end face of the mounting frame 3 is equipped with two second drive motors 303. The output shafts of the two second drive motors 303 are respectively connected to the unwinding roller 301 and the take-up roller 302. By driving the unwinding roller 301 and the take-up roller 302 with two independent second drive motors 303, the unwinding and take-up processes of the film 304 can be controlled. During the coating process, the unwinding and take-up speeds and tensions can be adjusted according to the actual requirements of the battery cell coating, avoiding wrinkles and damage to the coating caused by uneven tension of the film 304.

[0047] The mounting frame 3 is equipped with a limiting shaft 306, which limits the film 304. The limiting shaft 306 can limit the running trajectory of the film 304, ensuring that the film 304 always stays on the correct path during unwinding, transmission and rewinding, and preventing the film 304 from deviating or tilting.

[0048] The inner wall of the mounting frame 3 is equipped with a hydraulic rod 305, and the output end of the hydraulic rod 305 is equipped with a pressure block 307. The hydraulic rod 305 can provide adjustable pressure. By controlling the extension and retraction of the hydraulic rod 305, the pressure block 307 can apply the film 304 to the surface of the cell with appropriate pressure, ensuring the firmness and sealing of the coating.

[0049] A first drive motor 202 is installed inside the chassis 1. A rotating shaft 203 is provided on the output shaft of the first drive motor 202. The rotating shaft 203 is connected to the processing panel 2. The first drive motor 202 drives the processing panel 2 to rotate through the rotating shaft 203, so that the battery cells placed on the placement rack 201 can rotate during the coating process. In this way, the battery cells in multiple placement racks 201 can be processed sequentially.

[0050] Example 2

[0051] To remove dust from battery cells that require coating and prevent dust from adhering to the cell surface and affecting the coating quality, for example, such as... Figures 1 to 4 As shown, this utility model also includes:

[0052] Both ends of the dust collection hood 4 are equipped with mounting plates 401 via brackets 402. The mounting plates 401 are fixedly connected to the housing 1. Through the combined structure of the mounting plates 401 and brackets 402, the dust collection hood 4 can be securely installed on the housing 1. This ensures the normal operation of the dust collection function during equipment operation.

[0053] An exhaust pipe 504 is installed on the air pump 503. The end of the exhaust pipe 504 away from the air pump 503 is embedded in the filter box 5. The exhaust pipe 504 allows the air pump 503 to draw gas from the filter box 5, so that the filter box 5 can be filled with air through the exhaust pipe 502. When the air is filled, the dust removal of the battery cell to be processed can be performed through the gas collection hood 4, and the gas generated during dust removal is filtered through the filter bag in the filter box 5.

[0054] Furthermore, the provision of the first drive motor 202, the second drive motor 303, the hydraulic rod 305, and the air pump 503 is commonplace. Personnel can control them through an external power supply and an external control switch. The control methods of the external power supply and the control switch are all conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0055] Working principle:

[0056] First, the lithium battery cells are placed on the placement rack 201 of the processing panel 2. The first drive motor 202 inside the chassis 1 is started. The first drive motor 202 drives the processing panel 2 to rotate through the rotating shaft 203, so that the battery cells on the placement rack 201 enter the coating station in sequence.

[0057] Next, the two second drive motors 303 on the rear end face of the mounting frame 3 start to work, driving the unwinding roller 301 and the take-up roller 302 respectively, so that the film 304 is released from the unwinding roller 301 and, under the limitation of the limiting shaft 306, is transmitted along the correct running trajectory.

[0058] Then, when the film 304 is transferred to the top of the battery cell, the hydraulic rod 305 on the inner wall of the mounting bracket 3 extends, driving the film pressing block 307 to adhere the film 304 to the surface of the battery cell with appropriate pressure, completing the film coating operation of the battery cell. After the film coating is completed, the winding wheel 302, driven by the second drive motor 303, winds up the used film 304.

[0059] Throughout the coating process, the gas collection hood 4 plays a dust removal role. The air pump 503 draws gas from the filter box 5 through the discharge pipe 504, causing the filter box 5 to generate suction through the air extraction pipe 502. The gas collection hood 4 then draws out the dust on the battery cell for dust removal. After the gas is filtered through the filter bag in the filter box 5, the purified gas is discharged, ensuring a clean working environment.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lithium battery cell coating device, comprising a chassis (1), a processing panel (2) provided on the chassis (1), a support block (101) mounted on the bottom surface of the chassis (1), a placement rack (201) mounted on the processing panel (2), a mounting frame (3) fixedly mounted on the processing panel (2), an unwinding roller (301) and a winding roller (302) provided on the mounting frame (3), and a thin film (304) provided on the unwinding roller (301) and the winding roller (302), characterized in that: The processing panel (2) is provided with a gas collection hood (4); A filter box (5) is installed on the side end face of the chassis (1) via a connecting plate (501). A filter bag is installed inside the filter box (5). The filter box (5) is connected to the air collection hood (4) via an air extraction pipe (502). An air pump (503) is installed on the rear end face of the filter box (5).

2. The lithium battery cell coating device according to claim 1, characterized in that: The rear end face of the mounting bracket (3) is equipped with a second drive motor (303). There are two second drive motors (303). The output shafts of the two second drive motors (303) are respectively connected to the unwinding wheel (301) and the winding wheel (302).

3. The lithium battery cell coating device according to claim 2, characterized in that: The mounting bracket (3) is equipped with a limiting shaft (306), which limits the film (304).

4. The lithium battery cell coating device according to claim 3, characterized in that: The inner wall of the mounting bracket (3) is fitted with a hydraulic rod (305), and the output end of the hydraulic rod (305) is fitted with a pressure block (307).

5. The lithium battery cell coating device according to claim 1, characterized in that: The first drive motor (202) is installed inside the chassis (1). The output shaft of the first drive motor (202) is provided with a rotating shaft (203), which is connected to the processing panel (2).

6. The lithium battery cell coating device according to claim 1, characterized in that: Both ends of the gas collection hood (4) are equipped with mounting plates (401) via brackets (402), and the mounting plates (401) are fixedly connected to the chassis (1).

7. The lithium battery cell coating device according to claim 1, characterized in that: The air pump (503) is equipped with a discharge pipe (504), and the end of the discharge pipe (504) facing away from the air pump (503) is embedded in the filter box (5).

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