Battery cell vacuumizing girdling packaging equipment

Abstract

The utility model discloses battery cell vacuumizing girdling packaging equipment, which comprises a cylindrical accommodating box, two pairs of half tubes and a negative pressure joint, wherein the cylindrical accommodating box is axially split in half and hollow and can accommodate a battery with a pin; the half tubes are axially split in half and can be spliced into a pin tube; the far end of the negative pressure joint is connected with a negative pressure device; the negative pressure joint is provided with two concave interfaces corresponding to the positions of the pin tubes, and each concave interface is provided with a horn-shaped lead-in flaring. In the battery cell vacuumizing girdling packaging equipment, as the two pairs of half tubes are spliced into the pin tube, the accommodating box does not need to reserve a space corresponding to a pin and can accommodate the battery cell, so that the vacuumized internal space is greatly reduced, and the internal air in the space in the accommodating box is more easily, quickly and thoroughly extracted; and the consumption of the exchanged inert gas is low, so that the waste of the inert gas is avoided.

Description

Technical Field

[0001] This utility model relates to battery cell vacuum sealing technology, and more particularly to a battery cell vacuum sealing packaging device. Background Technology

[0002] During the production of aluminum electrolytic capacitors, lithium batteries, and supercapacitors, gases and moisture from the air can enter the battery and affect the normal reaction of the electrolyte. Therefore, to avoid this, the traditional method of removing gas involves making a small hole in the battery or capacitor after assembly in the assembly machine to release the gas, and then sealing the hole to prevent electrolyte leakage. This method increases the number of hole-making and sealing steps, lengthens production time, and the small hole diameter makes it difficult to process, hindering rapid and stable production.

[0003] New technologies have emerged, such as vacuuming, where battery cells are placed in a container and the container is evacuated. This allows internal gas to be extracted from the gap between the stopper and the outer casing. A specific example is Chinese patent application CN117697360A – "A Vacuuming Waist-Binding Production Method and its Assembly Machine." Correspondingly, the volume requiring vacuuming is relatively large, the exhaust edge is long, and high strength is required, placing high demands on the vacuuming equipment. Furthermore, if inert gas needs to be added after vacuuming, the large internal space results in significant waste of inert gas. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a battery cell vacuum waist packaging device that can quickly and thoroughly extract the air from the bottom surface of the rubber stopper and replace it with inert gas without waste.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a cell vacuum waist-sealing packaging device, which includes a cylindrical container that is axially split in half and hollow to accommodate a battery with leads, two pairs of axially split in half and can be assembled into lead tubes, and a negative pressure connector connected to a negative pressure device at the far end. The negative pressure connector has two concave interfaces corresponding to the positions of the lead tubes, and the concave interfaces have flared inlet ports.

[0006] As an improvement to the technical solution of the battery cell vacuum packaging device of this utility model, the two sides of the accommodating box are provided with locking mechanisms that drive the two halves of the box to close together.

[0007] As an improvement to the technical solution of the battery cell vacuum waist packaging equipment of this utility model, the locking mechanism is provided with a side top rod that supports the half tube to be assembled into a side-sealed pin tube.

[0008] As an improvement to the technical solution of the battery cell vacuum waist packaging equipment of this utility model, a binding sleeve is provided on the lower side of the concave interface, and the lower end of the binding sleeve has an inlet flared mouth.

[0009] As an improvement to the technical solution of the battery cell vacuum waist packaging equipment of this utility model, the connecting pipe on the rear side of the negative pressure connector is provided with a side branch pipe, the side branch pipe is provided with a valve, and the end of the side branch pipe is connected to the inert gas source pipe.

[0010] As an improvement to the technical solution of the battery cell vacuum sealing device of this utility model, a waisting wheel is provided on the side at the height position of the upper end of the battery with leads.

[0011] The beneficial effects of this utility model are as follows: In the battery cell vacuum waist packaging equipment, since two pairs of half tubes are combined into lead tubes, the housing box does not need to reserve space corresponding to the leads. The housing box only needs to accommodate the battery cell, which greatly reduces the internal space for vacuuming. This makes it easier and faster to completely extract the internal air from the housing box, and the amount of inert gas consumed is not large, thus avoiding waste of inert gas. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the housing and lead tube of a battery cell vacuum waist packaging device according to this utility model.

[0013] Figure 2 This is a front structural diagram of an embodiment of a battery cell vacuum sealing device according to the present invention.

[0014] Figure 3 This is a front structural schematic diagram of another embodiment of the battery cell vacuum waist packaging device of this utility model. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0016] like Figure 1 , Figure 2As shown, this utility model discloses a battery cell vacuum sealing device, which includes a cylindrical container 12 that is axially split in half and hollow to accommodate a leaded battery 11, two pairs of axially split halves that can be assembled into lead tubes 13, and a negative pressure connector 15 connected to a negative pressure device at the far end. The negative pressure connector has two concave interfaces 16 corresponding to the positions of the lead tubes, and the concave interfaces have flared inlet ports 18. The leaded battery 11, which is the battery cell that needs to be vacuumed, has its top leads pointing straight upwards, passing through rubber plugs, which are attached to the top surface of the battery cell. Because the two pairs of halves are assembled into lead tubes 13, the container 12 does not need to reserve space corresponding to the leads; the container 12 only needs to accommodate the battery cell, which greatly reduces the internal space for vacuuming. This makes it easier and faster to completely remove the internal air from the container 12, and the consumption of inert gas is also small, thus avoiding waste of inert gas.

[0017] The accommodating box 12 is provided with locking mechanisms 21 on both sides to drive the two halves of the box to close together. After the leaded battery 11 is placed, the locking mechanisms 21 can be used to push the two halves of the accommodating box 12 to close together and contain the leaded battery 11.

[0018] Furthermore, the locking mechanism 21 is provided with a side top rod 23 that supports the half tubes to be assembled into a side-sealed pin tube 13, so that when the two halves of the housing 12 are closed, the two pairs of half tubes are also assembled to form two pin tubes 13 to accommodate the pins 11a of the battery cell, thereby reducing the remaining internal space and facilitating vacuuming and replenishment of inert gas.

[0019] In addition, such as Figure 1 , Figure 3 As shown, a binding sleeve 31 is provided on the lower side of the concave interface. The lower end of the binding sleeve 31 has an inlet flare 32 to guide the two halves of the pin tube. Thus, the two halves of the tube can be firmly spliced ​​together into an airtight pin tube 13 through the binding sleeve 31. Moreover, the splicing accuracy is higher and the tolerance is better controlled, and the structure of splicing the pin tube 13 is also simpler.

[0020] The negative pressure connector 15 has a side branch pipe 52 on its rear connecting pipe. The side branch pipe 52 is equipped with a valve 53, and its end is connected to an inert gas source pipe, thereby introducing inert gas. When the valve 53 is closed, the container 12 can be evacuated smoothly. When the container 12 is under negative pressure, opening the valve 53 allows inert gas to be injected into the container 12 and seep into the gaps of the battery cells, preventing gas chemical reactions from occurring later.

[0021] Furthermore, a waisting wheel is provided on the side at the height position of the upper end of the leaded battery 11. After vacuuming is completed, the housing 12 can be opened. Under the action of the waisting wheel, the battery 11 completes its waisting action at the rubber stopper position, so that the battery cell inside the battery is sealed and protected.

[0022] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. An electric cell vacuum beam waist packaging apparatus, characterized by: The utility model relates to a battery holder, which comprises a cylindrical barrel-shaped accommodating box axially split into two halves and hollow to accommodate a battery with pins, two pairs of half-pipes axially split into two halves and capable of being spliced into a pin tube, and a negative pressure connector connected to a negative pressure device at a distal end, wherein the negative pressure connector has two concave interfaces corresponding to the positions of the pin tube, and the concave interfaces have trumpet-shaped lead-in flares.

2. The cell vacuum-bead-waist packaging apparatus according to claim 1, characterized by: The accommodating box is provided with a locking mechanism on both sides to drive the two half-box bodies to be oppositely spliced.

3. The cell vacuum-bead-waist packaging apparatus according to claim 2, characterized by: The locking mechanism is provided with side top rods to support the splicing of the half-pipes into a pin tube with side sealing.

4. The cell vacuum-bead-cuff encapsulation apparatus of claim 1, wherein: The lower side of the concave interface is provided with a restraint sleeve, and the lower end of the restraint sleeve has a lead-in trumpet mouth.

5. The cell vacuum-bead-cuff encapsulation apparatus of claim 1, wherein: The connecting pipe at the rear side of the negative pressure connector is provided with a side branch pipe, which is provided with a valve and has a terminal end connected to an inert gas source pipe.

6. The cell vacuum-bead-cuff encapsulation apparatus of claim 1, wherein: A waist-holding wheel is provided on the side corresponding to the height position of the upper end of the battery with pins.

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