Battery cell pressing device of lithium battery

Abstract

The utility model discloses a lithium battery cell pressing device which comprises a pressing device body, a hydraulic rod is fixedly connected to the upper surface of the pressing device body, an air guide shell is fixedly connected to the output end of the hydraulic rod, a lead screw is rotationally connected to the outer surface of the air guide shell, and the outer surface of the lead screw is in threaded connection with a movable frame. One end of the movable frame is fixedly connected with a fixed block, a fan is mounted on the inner wall of the fixed block, after a battery cell of a lithium battery is pressed, the battery cell is placed below the air guide shell and cooled through the fan, the production period is shortened, and the overall production efficiency is improved; the air guide shell connected with the hydraulic rod can be lifted to adapt to battery cells with different thicknesses or specifications, so that the universality of the equipment is enhanced; and by rotating the lead screw on the outer side of the air guide shell, the movable frame in threaded connection with the lead screw can drive the fixing block to move, the fan on the inner wall of the fixing block is pushed out of the air guide shell, and maintenance is more convenient.

Description

Technical Field

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

[0002] Lithium-ion batteries are a type of rocking chair battery that stores / releases energy by the reciprocating motion of lithium ions between the positive and negative electrodes. During the manufacturing process of lithium batteries, the cells formed by stacking electrode sheets and separators generally need to undergo hot pressing to prevent the cells from loosening. However, current general cell pressing devices do not have a cooling structure and generally rely on natural air cooling, which reduces production efficiency. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a lithium battery cell pressing device. After the lithium battery cell is pressed, it is placed under the air guide shell and cooled by a fan, which shortens the production cycle and improves the overall production efficiency. At the same time, the hydraulic rod on the upper part of the pressing device can be extended and retracted, so that the air guide shell connected to the hydraulic rod can be raised and lowered to adapt to cells of different thicknesses or specifications, thereby enhancing the versatility of the equipment. By rotating the lead screw on the outside of the air guide shell, the moving frame threaded to the lead screw can move with the fixed block, pushing the fan on the inner wall of the fixed block out of the air guide shell, making maintenance more convenient.

[0004] This utility model also provides a cell pressing device for the above-mentioned lithium battery, comprising: a pressing device body, a hydraulic rod fixedly connected to the upper surface of the pressing device body, an air guide shell fixedly connected to the output end of the hydraulic rod, a lead screw rotatably connected to the outer surface of the air guide shell, a movable frame threadedly connected to the outer surface of the lead screw, a fixed block fixedly connected to one end of the movable frame, a fan installed on the inner wall of the fixed block, and the fan being located inside the air guide shell.

[0005] According to the lithium battery cell pressing device provided by this utility model, the lower surface of the air guide shell is provided with an air outlet, and the outer surface of the air guide shell is provided with an air inlet. The design of the air outlet and the air inlet ensures that the air can pass through the air guide shell evenly and quickly, cover the surface of the cell, and improve the cooling efficiency.

[0006] According to the lithium battery cell pressing device provided by this utility model, an air intake grille is fixedly connected to the outer surface of the air guide shell. The air intake grille is located outside the air inlet. The air intake grille can prevent foreign objects from entering the air guide shell and protect the fan.

[0007] According to the lithium battery cell pressing device provided by this utility model, a guide rod is fixedly connected to the upper surface of the main body of the pressing device. The outer surface of the guide rod is slidably connected to the air guide shell. The guide rod provides stable support for the lifting and lowering of the air guide shell, and avoids the air guide shell from shaking or deviating during the lifting and lowering process.

[0008] According to the lithium battery cell pressing device provided by this utility model, a cover is fixedly connected to the outer surface of the fixing block, and the inner side of the cover is in contact with the outer surface of the pressing device body. The cover protects the fixing block and makes the appearance neater.

[0009] According to the lithium battery cell pressing device provided by this utility model, the outer surface of the fixing block is in contact with the inner wall of the pressing device body. Both the outer surface of the fixing block and the inner wall of the pressing device body are smooth surfaces. The smooth surface design reduces the friction between the fixing block and the inner wall of the pressing device body, making the movement smoother.

[0010] According to the lithium battery cell pressing device provided by this utility model, an identification box is fixedly connected to the outer surface of the main body of the pressing device, and an identification plate is placed inside the identification box. The identification box and the identification plate facilitate the recording of equipment information and make management and maintenance convenient.

[0011] According to the lithium battery cell pressing device provided by this utility model, one end of the lead screw is fixedly connected to a handle, and the outer surface of the movable frame is slidably connected to the main body of the pressing device. The handle design makes the rotation of the lead screw more convenient and facilitates the operator to manually adjust the position of the fan. The sliding connection between the movable frame and the main body of the pressing device ensures that the fan moves smoothly.

[0012] Compared with existing technologies, this lithium battery cell pressing device places the pressed lithium battery cells under the air guide shell and cools them with a fan, shortening the production cycle and improving overall production efficiency. At the same time, the hydraulic rod on the top of the pressing device can be extended and retracted, allowing the air guide shell connected to the hydraulic rod to be raised and lowered to accommodate cells of different thicknesses or specifications, thus enhancing the equipment's versatility. By rotating the lead screw on the outside of the air guide shell, the moving frame threaded to the lead screw can move along with the fixed block, pushing the fan on the inner wall of the fixed block out of the air guide shell, making maintenance more convenient. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is an overall structural diagram of the lithium battery cell pressing device of this utility model;

[0015] Figure 2 This is a schematic diagram of the air guide shell connection of the lithium battery cell pressing device of this utility model;

[0016] Figure 3 This is a schematic diagram of the moving frame connection of the lithium battery cell pressing device of this utility model;

[0017] Figure 4This is a schematic diagram of the connection of the fixing block in the lithium battery cell pressing device of this utility model.

[0018] Legend:

[0019] 1. Pressing device body; 2. Hydraulic rod; 3. Air guide shell; 4. Screw; 5. Moving frame; 6. Fixing block; 7. Fan; 8. Guide rod; 9. Cover; 10. Identification box; 11. Handle; 12. Air intake grille. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figure 1 and Figure 2 The present invention relates to a lithium battery cell pressing device, comprising: a pressing device body 1, a hydraulic rod 2 fixedly connected to the upper surface of the pressing device body 1, an air guide shell 3 fixedly connected to the output end of the hydraulic rod 2, an air outlet provided on the lower surface of the air guide shell 3, an air inlet provided on the outer surface of the air guide shell 3, an air intake grille 12 fixedly connected to the outer surface of the air guide shell 3, the air intake grille 12 being located outside the air inlet, a guide rod 8 fixedly connected to the upper surface of the pressing device body 1, the outer surface of the guide rod 8 being slidably connected to the air guide shell 3, an identification box 10 fixedly connected to the outer surface of the pressing device body 1, an identification plate placed inside the identification box 10, a handle 11 fixedly connected to one end of a lead screw 4, and a movable frame 5 being slidably connected to the outer surface of the pressing device body 1.

[0022] Specifically, the main body 1 of the pressing device consists of a pressing mechanism, a heating system, and a conveying system. Its main function is to press the cell materials together during the battery manufacturing process. After the lithium battery cells are pressed, they are placed under the air guide shell 3 and cooled by the fan 7 inside the air guide shell 3, which shortens the production cycle and improves the overall production efficiency. At the same time, the hydraulic rod 2 above the pressing device main body 1 is used for extension and retraction, so that the air guide shell 3 connected to the hydraulic rod 2 can be raised and lowered to adapt to cells of different thicknesses or specifications, thus enhancing the versatility of the equipment.

[0023] Reference Figure 3 and Figure 4A lead screw 4 is rotatably connected to the outer surface of the air guide shell 3. A movable frame 5 is threadedly connected to the outer surface of the lead screw 4. A fixed block 6 is fixedly connected to one end of the movable frame 5. A fan 7 is installed on the inner wall of the fixed block 6. The fan 7 is located inside the air guide shell 3. A cover 9 is fixedly connected to the outer surface of the fixed block 6. The inner side of the cover 9 is in contact with the outer surface of the pressing device body 1. The outer surface of the fixed block 6 is in contact with the inner wall of the pressing device body 1. Both the outer surface of the fixed block 6 and the inner wall of the pressing device body 1 are smooth surfaces.

[0024] Specifically, when maintenance of the fan 7 is required, the screw 4 on the outside of the air guide shell 3 is rotated, so that the movable frame 5, which is threadedly connected to the screw 4, can move. The movement of the movable frame 5 moves the fixed block 6, pushing the fan 7 out of the air guide shell 3 from the inner wall of the fixed block 6, making maintenance more convenient. At the same time, the sliding connection between the movable frame 5 and the main body 1 of the pressing device ensures that the fan 7 moves smoothly.

[0025] Working principle: After the lithium battery cells are pressed together, they are placed under the air guide shell 3. The air guide shell 3 is cooled by the fan 7 inside, which shortens the production cycle and improves the overall production efficiency. At the same time, the hydraulic rod 2 on the upper part of the pressing device body 1 is used to extend and retract, so that the air guide shell 3 connected to the hydraulic rod 2 can be raised and lowered to adapt to cells of different thicknesses or specifications, thus enhancing the versatility of the equipment. When maintenance of the fan 7 is required, the screw 4 on the outside of the air guide shell 3 is rotated, so that the movable frame 5 threadedly connected to the screw 4 can be moved. The movement of the movable frame 5 moves the fixed block 6, pushing the fan 7 out of the air guide shell 3 from the inner wall of the fixed block 6, making maintenance more convenient.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model 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 the present utility model.

Claims

1. A cell pressing device for lithium batteries, characterized by, Include: The pressing device body (1), the upper surface of the pressing device body (1) is fixedly connected with a hydraulic rod (2), the output end of the hydraulic rod (2) is fixedly connected with a wind guide shell (3), the outer surface of the wind guide shell (3) is rotatably connected with a lead screw (4), the outer surface of the lead screw (4) is threadedly connected with a moving frame (5), one end of the moving frame (5) is fixedly connected with a fixed block (6), the inner wall of the fixed block (6) is mounted with a fan (7), the position of the fan (7) is located in the inside of the wind guide shell (3).

2. The cell pressing apparatus of claim 1, wherein, The lower surface of the wind guide shell (3) is provided with an air outlet, and the outer surface of the wind guide shell (3) is provided with an air inlet.

3. The lithium battery cell pressing device according to claim 1, characterized in that, The outer surface of the wind guide shell (3) is fixedly connected with an air inlet grille (12), and the position of the air inlet grille (12) is located on the outside of the air inlet.

4. The cell pressing apparatus of claim 1, wherein, The upper surface of the pressing device body (1) is fixedly connected with a guide rod (8), and the outer surface of the guide rod (8) is slidably connected with the wind guide shell (3).

5. The cell pressing apparatus of claim 1, wherein, The outer surface of the fixed block (6) is fixedly connected with a cover (9), and the inner side of the cover (9) is fitted with the outer surface of the pressing device body (1).

6. The cell pressing apparatus of claim 1, wherein, The outer surface of the fixed block (6) is fitted with the inner wall of the pressing device body (1), and the outer surface of the fixed block (6) and the inner wall of the pressing device body (1) are smooth surfaces.

7. The cell pressing apparatus of claim 1, wherein, The outer surface of the pressing device body (1) is fixedly connected with an identification box (10), and the inside of the identification box (10) is placed with an identification board. 8.The cell pressing device of the lithium battery of claim 1, wherein, One end of the lead screw (4) is fixedly connected with a handle (11), and the outer surface of the moving frame (5) is slidably connected with the pressing device body (1).

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