Packaging device for polymer battery cell

By designing a packaging device for polymer battery cells, using a combination of conveyor belt and hot pressing components, the problem of low sealing efficiency of artificial hot pressing is solved, and multiple aluminum-plastic films are sealed simultaneously, improving the packaging efficiency and battery sealing.

CN222601050UActive Publication Date: 2025-03-11SIYANG HENGHUI ELECTRONICS CO LTD
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Patent Information

Application Number
CN202420791444.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-17
Publication Date
2025-03-11
Estimated Expiration
2034-04-17

AI Technical Summary

Technical Problem

During the packaging process of lithium-ion batteries, artificial hot pressing sealing efficiency is low, which can easily lead to leakage of aluminum-plastic film edge sealing, which will affect the sealing and service life of the battery.

Method used

A packaging device for polymer battery cells is designed, and a combination of conveyor belt and hot pressing assembly can be used to process multiple aluminum-plastic films at one time, and a plurality of aluminum-plastic films can be sealed simultaneously through a threaded motor-driven hot pressing assembly.

Benefits of technology

The sealing of multiple aluminum-plastic films is achieved simultaneously, which improves packaging efficiency, avoids the problems of uneven edge sealing and leaking sealing, and ensures the sealing and service life of the battery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a packaging device for a polymer cell, which comprises a bottom plate, two sliding chutes are arranged on the top side of the bottom plate, a moving plate is arranged above the bottom plate, four pulleys are arranged on the bottom side of the moving plate, two of the four pulleys are in one group and respectively slide in the two sliding chutes, four limiting plates are fixedly arranged on the top side of the moving plate, and the limiting plates are fixedly arranged on the bottom side of the moving plate. Pull rods are fixedly installed on the two sides of the movable plate, two fixing rods are fixedly installed on the top side of the bottom plate, the top sides of the two fixing rods are fixedly connected with the same inclined block, the aluminum plastic films are placed in the space between the multiple baffles and are sequentially placed in the horizontal line, and the sides, without sealing, of the aluminum plastic films face the inclined block during placement, so that the aluminum plastic films are prevented from being blocked. When the conveying belt moves a plurality of aluminum-plastic films to one side of the inclined block, the aluminum-plastic films slide to the moving plate along with inertia, four limiting plates are fixedly installed on the top side of the moving plate, and the four limiting plates and four baffles are located on the same horizontal line, so that the situation that the aluminum-plastic films deviate when sliding down can be avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery cell packaging, in particular to a packaging device for polymer battery cells. Background Art

[0002] Polymer battery cells are also a component of lithium-ion batteries. The composition of lithium-ion secondary rechargeable batteries is battery cells + protection circuit boards. The battery cells are the power storage part of the rechargeable battery after the protection circuit boards are removed. The quality of the battery cells directly determines the quality of the rechargeable battery. In the packaging process of lithium batteries, hot pressing is required for sealing, and a sealed space will be formed after sealing.

[0003] At present, only one aluminum-plastic film can be hot-pressed manually at a time, and multiple films cannot be hot-pressed simultaneously. Before packaging the battery cell, the aluminum-plastic film is first installed and then hot-pressed and sealed. However, during the hot pressing, the aluminum-plastic film is manually held, and then the unsealed end is placed on the hot pressing device for hot pressing. This makes it easy for the sealed edge of the aluminum-plastic film to leak, which easily causes gas to enter the aluminum-plastic film, thereby affecting the subsequent process. Therefore, a packaging device for polymer batteries is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a packaging device for polymer batteries, which is used to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A packaging device for polymer batteries comprises a bottom plate, wherein two slide grooves are provided on the top side of the bottom plate, a movable plate is arranged above the bottom plate, four pulleys are arranged on the bottom side of the movable plate, two of the four pulleys are grouped together and slide in the two slide grooves respectively, four limit plates are fixedly installed on the top side of the movable plate, pull rods are fixedly installed on both sides of the movable plate, two fixed rods are fixedly installed on the top side of the bottom plate, the top sides of the two fixed rods are fixedly connected with the same inclined block, four baffles are fixedly installed on the inclined surface of the inclined block, the four baffles and the four limit plates are in the same horizontal line, two mounting plates are fixedly installed on the top side of the bottom plate, conveying components are arranged in the two mounting plates, two mounting blocks are fixedly installed on the top side of the bottom plate, both mounting blocks are U-shaped, and hot pressing components are arranged in the two mounting blocks.

[0007] Preferably, the conveying assembly includes a rotating motor fixedly mounted on one side of a mounting plate, the output end of the rotating motor rotates through a mounting plate and is fixedly mounted with a rotating rod, the other end of the rotating rod is rotatably connected to another mounting plate, and a fixed cylinder is fixedly sleeved on the outer side of the rotating rod.

[0008] Preferably, a fixed column is fixedly installed on one side of the two mounting plates close to each other, a movable cylinder is movably sleeved on the outer side of the fixed column, and the outer sides of the movable cylinder and the fixed cylinder are sleeved with the same conveyor belt.

[0009] Preferably, the hot pressing assembly includes a threaded motor fixedly mounted on the top side of a mounting block, the output end of the threaded motor rotates through a mounting block and is fixedly mounted with a threaded rod, and the other end of the threaded rod is rotatably connected to an inner wall of one side of a mounting block.

[0010] Preferably, the outer sides of the threaded rod are slidably mounted with a first slider and a second slider, respectively; one side of the first slider and the second slider is fixedly mounted with a connecting block; the sides of the two connecting blocks close to each other are fixedly mounted with an electric heating plate; the two electric heating plates are symmetrically arranged; and the other ends of the two connecting blocks are fixedly mounted with a guide block.

[0011] Preferably, a guide rod is fixedly mounted on the inner wall of the other mounting block, and the two guide blocks are both slidably mounted on the guide rod, and the two mounting blocks are symmetrically arranged.

[0012] Preferably, support legs are fixedly mounted on the bottom side of the base plate, and the number of the support legs is four.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the packaging device for polymer battery cells can place a lot of aluminum-plastic films with assembled but unsealed battery cells at one time through the provided conveyor belt. When placing the aluminum-plastic films, the aluminum-plastic films are placed in the space between a plurality of baffles and are placed in sequence in a horizontal line, with the unsealed side facing the inclined block. When the conveyor belt moves the plurality of aluminum-plastic films to one side of the inclined block, they will slide onto the movable plate by inertia, because four limit plates are fixedly installed on the top side of the movable plate, and the four limit plates are in the same horizontal line with the four baffles, so the aluminum-plastic film can be prevented from shifting when sliding down. By manually pulling the pull rod, the movable plate can be driven to move toward the two electric heating plates, and then the plurality of aluminum-plastic films can be sealed through the hot pressing assembly.

[0014] The threaded motor is operated to drive the first slider and the second slider installed in a sliding manner on the outer side of the threaded rod to approach each other, and then the first slider and the second slider can drive the connecting blocks fixedly installed on one side to approach synchronously. Because the electric heating plates are fixedly installed on the sides of the two connecting blocks that are close to each other, when they are close to each other to clamp one side of the aluminum-plastic film, the two electric heating plates can seal the edges of multiple aluminum-plastic films, and can achieve simultaneous edge sealing of multiple aluminum-plastic films without the occurrence of uneven edge sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of some parts of the movable plate structure of the utility model;

[0017] Figure 3 This is a schematic diagram of some parts of the conveyor belt structure of the utility model;

[0018] Figure 4 This is a schematic diagram of some parts of the structural connecting block of the utility model.

[0019] In the figure: 1. bottom plate; 2. supporting leg; 3. slide groove; 4. moving plate; 5. pulley; 6. limit plate; 7. pull rod; 8. fixed rod; 9. inclined block; 10. baffle; 11. mounting plate; 12. rotating motor; 13. rotating rod; 14. fixed cylinder; 15. fixed column; 16. movable cylinder; 17. conveyor belt; 18. mounting block; 19. threaded motor; 20. threaded rod; 21. first slider; 22. second slider; 23. connecting block; 24. electric heating plate; 25. guide block; 26. guide rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-4A packaging device for polymer batteries comprises a bottom plate 1, two slide grooves 3 are provided on the top side of the bottom plate 1, a movable plate 4 is arranged above the bottom plate 1, four pulleys 5 are arranged on the bottom side of the movable plate 4, two of the four pulleys 5 are grouped together and slide in the two slide grooves 3 respectively, four limit plates 6 are fixedly installed on the top side of the movable plate 4, and pull rods 7 are fixedly installed on both sides of the movable plate 4, two fixed rods 8 are fixedly installed on the top side of the bottom plate 1, and the top sides of the two fixed rods 8 are fixedly connected with the same inclined block 9, and four baffles 10 are fixedly installed on the inclined surface of the inclined block 9, and the four baffles 10 are in the same horizontal line with the four limit plates 6, and two mounting plates 11 are fixedly installed on the top side of the bottom plate 1, A conveying assembly is arranged in the two mounting plates 11, and two mounting blocks 18 are fixedly installed on the top side of the bottom plate 1, and the two mounting blocks 18 are both U-shaped. A hot pressing assembly is arranged in the two mounting blocks 18, and four limit plates 6 are fixedly installed on the top side of the movable plate 4, and the four limit plates 6 are in the same horizontal line with the four baffles 10, so that the situation that multiple aluminum-plastic films will be offset when sliding onto the movable plate 4 can be avoided. By manually pulling the pull rod 7, the four pulleys 5 arranged on the bottom side of the movable plate 4 can be driven to move in the two slide grooves 3, and then the aluminum-plastic film on the movable plate 4 can be driven to move toward the two electric heating plates 24, and then the aluminum-plastic film can be subjected to hot pressing and edge sealing treatment.

[0022] Specifically, the conveying assembly includes a rotating motor 12 fixedly mounted on one side of a mounting plate 11, the output end of the rotating motor 12 rotates through a mounting plate 11 and is fixedly mounted with a rotating rod 13, the other end of the rotating rod 13 is rotatably connected to the other mounting plate 11, the outer side of the rotating rod 13 is fixedly sleeved with a fixed cylinder 14, and a fixed column 15 is fixedly mounted on one side of the two mounting plates 11 close to each other, and a movable cylinder 16 is movably sleeved on the outer side of the fixed column 15, and the movable cylinder 16 and the outer side of the fixed cylinder 14 are sleeved with the same conveyor belt 17, through the operation of the rotating motor 12, the rotating motor 12 can drive the rotating rod 13 to rotate, and the rotating rod 13 can drive the fixed cylinder 14 fixedly sleeved on the outer side to rotate, because the outer sides of the fixed cylinder 14 and the movable cylinder 16 are sleeved with the same conveyor belt 17, so when the fixed cylinder 14 rotates, it can drive the conveyor belt 17 to rotate, thereby realizing the transportation of the aluminum-plastic film.

[0023] Specifically, the hot pressing assembly includes a threaded motor 19 fixedly mounted on the top side of a mounting block 18, the output end of the threaded motor 19 rotates through a mounting block 18 and is fixedly mounted with a threaded rod 20, the other end of the threaded rod 20 is rotatably connected to the inner wall of one side of a mounting block 18, the outer side of the threaded rod 20 is respectively slidably mounted with a first slider 21 and a second slider 22, one side of the first slider 21 and the second slider 22 is fixedly mounted with a connecting block 23, the two connecting blocks 23 are fixedly mounted with an electric heating plate 24 on the side close to each other, the two electric heating plates 24 are symmetrically arranged, and the other ends of the two connecting blocks 23 are fixedly mounted with a guide block 25, the threaded motor 19 is operated, the threaded rod 20 can be driven to rotate, when the threaded rod 20 rotates, the first slider 21 and the second slider 22 respectively slidably mounted on the outer side of the threaded rod 20 can approach or move away from each other, when the first slider 21 and the second slider 22 are approaching or moving away from each other, the connecting blocks 23 fixedly mounted on the other side will also move synchronously, and can also synchronously drive the two electric heating plates 24 to approach or move away from each other.

[0024] Specifically, a guide rod 26 is fixedly installed on the inner wall of the other mounting block 18, and the two guide blocks 25 are slidably installed on the guide rod 26. The two mounting blocks 18 are symmetrically arranged. By setting the guide rod 26, it can provide a limiting and guiding function when the two connecting blocks 23 approach or move away from each other.

[0025] Specifically, the bottom side of the base plate 1 is fixedly mounted with support legs 2 , and the number of the support legs 2 is four.

[0026] When in use: by placing multiple battery cells in the aluminum-plastic film respectively, and then placing the unsealed side toward the inclined block 9, when placing, the aluminum-plastic film is placed in the space between multiple baffles 10, and placed in sequence in a horizontal line, after the placement is completed, the rotating motor 12 is started, the rotating motor 12 will drive the rotating rod 13 to rotate, and the rotating rod 13 will synchronously drive the fixed cylinder 14 fixedly sleeved on the outside to rotate, and then the fixed cylinder 14 can drive the conveyor belt 17 to rotate, and the multiple aluminum-plastic films on the conveyor belt 17 will move toward the inclined block 9. When moving to the inclined block 9, the rotating motor 12 will stop running, and the aluminum-plastic film will slide toward the movable plate 4 along the slope. When the multiple aluminum-plastic films slide onto the movable plate 4, because the top side of the movable plate 4 is fixedly installed with four limit plates 6, and the four limit plates 6 are in the same horizontal line with the four baffles 10, it can be prevented that the multiple aluminum-plastic films will slide onto the movable plate 4. When the displacement occurs, the four pulleys 5 arranged on the bottom side of the movable plate 4 can be driven to move in the two slide grooves 3 by manually pulling the pull rod 7, thereby driving the movable plate 4 to move toward the electric heating plate 24. When the side without sealing of the multiple aluminum-plastic films moves between the two electric heating plates 24, the threaded motor 19 is started, and the threaded motor 19 can drive the first slider 21 and the second slider 22 sliding on the outside of the threaded rod 20 to approach each other. When the first slider 21 and the second slider 22 are close to each other, the connecting blocks 23 fixedly installed on one side will be driven to approach each other synchronously, and then the two electric heating plates 24 can seal the multiple aluminum-plastic films without sealing. Through the guide rod 26 and the two guide blocks 25, guidance and limitation can be provided when the two connecting blocks 23 move. After the multiple aluminum-plastic films are sealed, the aluminum-plastic films with the sealed edges are taken away, and then the rotating motor 12 is started, and the next batch of aluminum-plastic films can be sealed by running back and forth according to the previous steps.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging device for a polymer battery cell, comprising a base plate (1), characterized in that: Two slide grooves (3) are provided on the top side of the bottom plate (1), a movable plate (4) is provided above the bottom plate (1), four pulleys (5) are provided on the bottom side of the movable plate (4), two of the four pulleys (5) are grouped together and slide in the two slide grooves (3), four limit plates (6) are fixedly installed on the top side of the movable plate (4), pull rods (7) are fixedly installed on both sides of the movable plate (4), two fixed rods (8) are fixedly installed on the top side of the bottom plate (1), and the two fixed rods (8) The top side of the bottom plate (1) is fixedly connected to the same inclined block (9), the inclined surface of the inclined block (9) is fixedly mounted with four baffles (10), the four baffles (10) and the four limit plates (6) are in the same horizontal line, the top side of the bottom plate (1) is fixedly mounted with two mounting plates (11), the two mounting plates (11) are provided with conveying components, the top side of the bottom plate (1) is fixedly mounted with two mounting blocks (18), the two mounting blocks (18) are both U-shaped, and the two mounting blocks (18) are provided with hot pressing components.

2. A packaging device for polymer batteries according to claim 1, characterized in that: The conveying assembly comprises a rotating motor (12) fixedly mounted on one side of a mounting plate (11); the output end of the rotating motor (12) rotates through one mounting plate (11) and is fixedly mounted with a rotating rod (13); the other end of the rotating rod (13) is rotatably connected to another mounting plate (11); and a fixed cylinder (14) is fixedly sleeved on the outer side of the rotating rod (13).

3. A packaging device for polymer batteries according to claim 1, characterized in that: A fixed column (15) is fixedly mounted on one side of the two mounting plates (11) close to each other, a movable cylinder (16) is movably sleeved on the outer side of the fixed column (15), and the outer sides of the movable cylinder (16) and the fixed cylinder (14) are sleeved with the same conveyor belt (17).

4. A packaging device for polymer batteries according to claim 1, characterized in that: The hot pressing assembly comprises a threaded motor (19) fixedly mounted on the top side of a mounting block (18); the output end of the threaded motor (19) rotates through a mounting block (18) and is fixedly mounted with a threaded rod (20); the other end of the threaded rod (20) is rotatably connected to an inner wall of one side of a mounting block (18).

5. A packaging device for polymer batteries according to claim 4, characterized in that: A first slider (21) and a second slider (22) are slidably mounted on the outer sides of the threaded rod (20), and a connecting block (23) is fixedly mounted on one side of the first slider (21) and the second slider (22). An electric heating plate (24) is fixedly mounted on the sides of the two connecting blocks (23) close to each other, and the two electric heating plates (24) are symmetrically arranged. A guide block (25) is fixedly mounted on the other ends of the two connecting blocks (23).

6. A packaging device for polymer batteries according to claim 5, characterized in that: A guide rod (26) is fixedly mounted on the inner wall of the other mounting block (18), and the two guide blocks (25) are both slidably mounted on the guide rod (26). The two mounting blocks (18) are symmetrically arranged.

7. A packaging device for polymer battery cells according to claim 1, characterized in that: Support legs (2) are fixedly mounted on the bottom side of the base plate (1), and the number of the support legs (2) is four.