Polymer battery bottom corner device

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a polymer battery bottom corner sealing device which comprises a bottom plate, a vertical plate, an air cylinder with a guide rod, an upper heat insulation plate, an upper heating pipe ironing block, an upper sealing head, a lower heat insulation plate, a lower heating pipe ironing block, a lower sealing head, a base and a battery shaping plate. A piston rod of the air cylinder with the guide rod is fixedly connected with the upper portion of an upper heat insulation plate, the lower portion of the upper heat insulation plate is fixedly connected with the upper portion of an upper heating pipe ironing block, the lower portion of the upper heating pipe ironing block is fixedly connected with an upper sealing head, a lower sealing head is fixed to the upper portion of a lower heating pipe ironing block, and the lower portion of the lower heating pipe ironing block is fixed to a lower heat insulation plate. The lower heat insulation plate is fixed on the base, and the battery shaping plate is fixed on the bottom plate through the base. When the bottom corner of the upper sealing head and the bottom corner of the lower sealing head are sealed, the battery can form an arc-shaped relatively gentle crease, so that the bottom corner is prevented from cracking. The battery shaping plate can position the battery body and is suitable for all models.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery technology, specifically relating to a polymer battery bottom sealing corner device. Background Technology

[0002] Lithium-ion batteries possess advantages such as high voltage, high specific energy, numerous cycle times, and long storage time. They are widely used not only in portable electronic devices like mobile phones, digital cameras, and laptops, but also in large and medium-sized electric equipment such as electric vehicles, electric bicycles, and power tools. Therefore, the performance requirements for lithium-ion batteries are increasingly stringent, and the demand for higher production efficiency is also growing to reduce costs. In the battery production process, polymer batteries are packaged in aluminum-plastic bags. After cold-pressing, the corner areas of the casing experience the most significant stretching. Furthermore, bending occurs at the battery corners during subsequent double-sided sealing processes, making the bottom corners highly susceptible to cracking and leakage. Batteries with cracked bottom corners on-site all exhibit sharp creases. To prevent sharp creases at the folding edges during bending, a bottom corner sealing function is required. How to implement an offline bottom corner sealing function to reduce defects is a pressing problem that needs to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a polymer battery bottom sealing angle device to solve the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a polymer battery bottom corner sealing device, comprising a base plate, a vertical plate, a cylinder with a guide rod, an upper heat insulation plate, an upper heating tube hot plate, an upper end cap, a lower heat insulation plate, a lower heating tube hot plate, a lower end cap, a base, and a battery shaping plate. The vertical plate is fixed to the base plate. The cylinder with a guide rod is fixed to the vertical plate via a cylinder mounting seat. The piston rod of the cylinder with a guide rod is fixedly connected to the upper part of the upper heat insulation plate. The lower part of the upper heat insulation plate is fixedly connected to the upper part of the upper heating tube hot plate. The lower part of the upper heating tube hot plate is fixedly connected to the upper end cap. The lower end cap is located below the upper end cap and is fixed to the upper part of the lower heating tube hot plate. The lower part of the lower heating tube hot plate is fixed to the lower heat insulation plate. The lower heat insulation plate is fixed to the base. The battery shaping plate is fixed to the base plate via the base. The battery shaping plate is provided with a V-shaped positioning groove for positioning the battery. The lower end cap is provided with an arc-shaped groove.

[0005] Preferably, a stiffening rib is fixed between the base plate and the upright plate.

[0006] Preferably, a height adjustment plate is provided between the battery shaping plate and the base.

[0007] Preferably, the base plate is provided with a limiting groove, and the base and the lower heat insulation plate are respectively installed in the limiting groove.

[0008] Preferably, four support blocks are fixed to the bottom of the base plate.

[0009] Preferably, a protective cover is fixed on the upright plate, and the protective cover is located outside the upper heat insulation plate, the upper heating tube block and the upper end cap.

[0010] Preferably, a pressure regulating valve is fixed on the upright plate.

[0011] Preferably, a temperature controller is fixed on the upright plate.

[0012] Preferably, a time relay is fixed on the upright plate.

[0013] Preferably, the base is L-shaped.

[0014] The beneficial effects of this invention are: when the upper and lower end caps seal the bottom corners, the battery can form a gentler, arc-shaped crease, preventing cracks at the bottom corners. The battery shaping plate can position the battery body and is applicable to all models. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a perspective view of the lower end cap of the utility model.

[0017] Figure 3 This is a perspective view of the battery shaping plate in this utility model;

[0018] Figure 4 This is an exploded view of the present invention;

[0019] Explanation of reference numerals in the attached drawings: 1. Base plate, 2. Vertical plate, 3. Rib plate, 4. Cylinder mounting base, 5. Cylinder with guide rod, 6. Upper heat insulation plate, 7. Upper heating tube heat block, 8. Upper end cap, 9. Lower heat insulation plate, 10. Lower heating tube heat block, 11. Lower end cap, 12. Base, 13. Height adjustment plate, 14. Battery shaping plate, 15. Pressure regulating valve, 16. Temperature controller, 17. Time relay, 18. Protective cover, 19. Support block. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0024] like Figures 1-4As shown, a polymer battery bottom sealing device includes a base plate 1, a vertical plate 2, a reinforcing rib 3, a cylinder mounting base 4, a cylinder with a guide rod 5, an upper heat insulation plate 6, an upper heating tube hot plate 7, an upper end cap 8, a lower heat insulation plate 9, a lower heating tube hot plate 10, a lower end cap 11, a base 12, a height adjustment plate 13, a battery shaping plate 14, a pressure regulating valve 15, a temperature controller 16, a time relay 17, a protective cover 18, and a support block 19. The protective cover is mounted on the vertical plate 2 to prevent employee safety accidents. The cylinder with a guide rod 5 is mounted on the cylinder mounting base 4, the upper heat insulation plate 6 is mounted on the cylinder with a guide rod 5, the upper heating tube hot plate 7 is mounted on the upper heat insulation plate 6, the upper end cap 8 is mounted on the upper heating tube hot plate 7, the lower heating tube hot plate 10 is mounted on the lower heat insulation plate 9, the lower end cap 11 is mounted on the lower heating tube hot plate 10, the height adjustment plate 13 is mounted on the base 12, and the battery shaping plate 14 is mounted on the height adjustment plate 13. The upper end cap has an adjustable Z-axis, and the lower end cap has an adjustable Y-axis mechanism to align the end caps. The battery shaping plate has a V-shaped positioning groove 20 for positioning the battery, and the lower end cap has an arc-shaped groove 21. The base plate has a limiting groove 22, and the base and the lower heat insulation plate are respectively installed in the limiting groove.

[0025] In use, manually place the battery onto the battery shaping plate 14. Activate the foot switch to start the guide rod cylinder 5, which moves the upper heat insulation plate 6, the upper heating element block 7, and the upper end cap 8 downwards, closing the upper end cap 8 and lower end cap 11 to seal the bottom corners of the battery. The cylinder should pause for 2-4 seconds after pressing down; this time is adjustable and controlled by the time relay 17. The temperature of the upper end cap 8 and lower end cap 11 is controllable at 200±20°C by the temperature controller 16. The cylinder mounting base 4 can adjust the height of the guide rod cylinder 5, upper heat insulation plate 6, upper heating element block 7, and upper end cap 8 along the Z-axis. The base 12 can adjust the height of the height adjustment plate 13 and battery shaping plate 14 along the Y-axis. The lower heat insulation plate 9 can adjust the lower heating element block 10 and lower end cap 11 along the Y-axis. The pressure regulating valve 15 can adjust the pressure of the guide rod cylinder 5.

[0026] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A polymer battery corner capping device, characterized by: The device includes a base plate, a vertical plate, a cylinder with a guide rod, an upper heat insulation plate, an upper heating tube hot plate, an upper end cap, a lower heat insulation plate, a lower heating tube hot plate, a lower end cap, a base, and a battery shaping plate. The vertical plate is fixed to the base plate. The cylinder with a guide rod is fixed to the vertical plate via a cylinder mounting seat. The piston rod of the cylinder with a guide rod is fixed to the upper part of the upper heat insulation plate. The lower part of the upper heat insulation plate is fixed to the upper part of the upper heating tube hot plate. The lower part of the upper heating tube hot plate is fixed to the upper end cap. The lower end cap is located below the upper end cap and is fixed to the upper part of the lower heating tube hot plate. The lower part of the lower heating tube hot plate is fixed to the lower heat insulation plate. The lower heat insulation plate is fixed to the base. The battery shaping plate is fixed to the base plate via the base. The battery shaping plate has a V-shaped positioning groove for positioning the battery. The lower end cap has an arc-shaped groove.

2. The polymer battery floor corner capping device of claim 1, wherein: A stiffening rib is fixed between the base plate and the upright plate.

3. The polymer battery floor corner capping device of claim 1, wherein: A height adjustment plate is provided between the battery shaping plate and the base.

4. The polymer battery floor corner capping device of claim 1, wherein: The base plate is provided with a limiting groove, and the base and the lower heat insulation plate are respectively installed in the limiting groove.

5. The polymer battery floor corner capping device of claim 1, wherein: The bottom of the base plate is fixed with four support blocks.

6. The polymer battery floor corner capping device of claim 1, wherein: A protective cover is fixed on the upright plate, and the protective cover is located on the outside of the upper heat insulation plate, the upper heating tube block and the upper end cap.

7. The polymer battery floor corner capping device of claim 1, wherein: A pressure regulating valve is fixed on the upright plate.

8. The polymer battery floor corner capping device of claim 1, wherein: A temperature controller is fixed on the upright plate.

9. The polymer battery floor corner capping device of claim 1, wherein: A time relay is fixed on the upright plate.

10. The polymer battery floor corner capping device of claim 1, wherein: The base is L-shaped.

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