A vacuum transfer case
By designing a vacuum transfer box, the effects of dust and moisture on lithium battery cells during inter-workshop transfer were resolved through sealing and vacuuming structures, ensuring the safety and stability of the cells during transportation and eliminating the safety risks associated with traditional transfer methods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI GUOXUAN HIGH TECH POWER ENERGY
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-31
AI Technical Summary
During the inter-workshop transfer of lithium battery cells, the cells are susceptible to dust and moisture, leading to safety risks such as gas expansion, thermal runaway, and lithium plating.
A vacuum transfer box was designed, comprising a box body, guide rails, a sealing door panel, and a vacuum structure. The sealing door panel isolates the external environment, the vacuum structure keeps the inside of the box dry and dust-free, and the buffers mitigate collisions to ensure the safe transport of battery cells.
It achieves the goal of maintaining a dry and dust-free environment for battery cells during inter-workshop transfer, avoiding contact with dust and moisture, ensuring the safety of battery cells, and reducing the risk of collision through buffers, thereby improving the stability and safety of transportation.
Smart Images

Figure CN224577085U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a vacuum transfer box. Background Technology
[0002] In the lithium battery production process, manual transport carts or AGV carts are used to transfer battery cells from one process to the next. If the process changes or the next process in the same workshop is incompatible with battery cell production, it is necessary to transfer the battery cells across workshops. Lithium battery cells have strict environmental requirements during the transfer process. The cells need to be in a dry and dust-free environment. Therefore, the battery cells are in a dry and dust-free environment in the workshop. If they are transferred across workshops, they will come into contact with moisture, dust and foreign objects in the outside air. Bumps or impacts during the transfer process will also bring quality risks to the product, leading to safety problems such as gas expansion, thermal runaway and lithium plating during the charging and discharging of the battery.
[0003] To address the impact of dust and moisture on battery cells during inter-workshop transfer and to ensure stable transportation, we propose a vacuum transfer box. Utility Model Content
[0004] The purpose of this invention is to provide a vacuum transfer box to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum transfer box, comprising:
[0006] The box body has a transfer chamber on its inner side;
[0007] Guide rails are fixed to the lower end of the side wall of the transfer chamber to guide the placed turnover boxes;
[0008] A sealing door panel is rotatably installed at one end of the box to seal the transfer chamber, and one end of the sealing door panel has a locking structure that cooperates with the box.
[0009] A vacuuming structure is installed at the top of the box to create a vacuum inside the box.
[0010] This design facilitates the isolation of the internal environment of the enclosure from the external environment, preventing the battery from coming into contact with moisture and dust, thus ensuring complete sealing and protecting the safety of the battery cells inside the enclosure during transportation.
[0011] Preferably, a buffer is provided at one end of the inner side of the transfer chamber to provide elastic cushioning for the turnover box.
[0012] This helps to mitigate collisions during the loading and unloading of battery cells.
[0013] Preferably, the vacuuming structure includes a ball valve and a vacuum pipe. The vacuum pipe is fixed to the top of the housing, and the lower end of the vacuum pipe passes through the housing and connects to the interior of the transfer chamber. A ball valve is installed on one side of the ball valve to control its internal movement.
[0014] It facilitates vacuuming operations and sealing of vacuum pipelines.
[0015] Preferably, the upper surface of the housing is provided with an instrument interface for connecting instruments.
[0016] It is convenient to connect to an external barometer or hygrometer.
[0017] Preferably, the locking structure includes a lock nose and a buckle, the lock nose is fixed to one end face of the sealed door panel, and a buckle corresponding to the lock nose is rotatably installed on one side of the box body.
[0018] It facilitates quick and easy fitting of the sealing door panel with the enclosure to seal the enclosure.
[0019] Preferably, the guide rail is L-shaped, and the inner side wall of the transfer chamber is connected to a limiting pin by a hook, and the limiting pin cooperates with the pin hole opened on the inner side of the guide rail to limit the position of the turnover box.
[0020] This allows for the placement of the turnover box containing the battery cells inside the box, ensuring that it does not move arbitrarily during transportation.
[0021] Preferably, a push-pull handle is fixed to one end face of the box.
[0022] Preferably, the lower surface of the box is provided with casters.
[0023] It facilitates manual pushing and pulling of the box.
[0024] Compared with the prior art, the beneficial effects of this utility model are:
[0025] This application, by incorporating a box, guide rails, sealed door panel, and vacuum structure, avoids the safety of battery cells caused by exposure to air, external dust, and moisture during the transfer of traditional turnover boxes. This device can ensure that battery cells maintain a dry and dust-free transportation environment when transferred between workshops, and achieves stable transportation. It is easy to operate and can cushion the turnover box during transportation, thus improving safety. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the sealing door panel installation structure of this utility model;
[0028] Figure 3 This is a schematic diagram of the buffer structure of this utility model;
[0029] Figure 4 This is a schematic diagram of the movable wheel structure of this utility model;
[0030] Figure 5 This is a schematic diagram illustrating the loading and unloading of turnover boxes into the box using a forklift, according to this utility model.
[0031] In the diagram: 1. Box body; 2. Transfer chamber; 3. Ball valve; 4. Vacuum pipeline; 5. Instrument interface; 6. Guide rail; 7. Limit pin; 8. Buckle; 9. Push-pull handle; 10. Sealing door panel; 11. Lock nose; 12. Buffer; 13. Caster wheel; 14. Forklift. Detailed Implementation
[0032] 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.
[0033] Please see Figures 1-5 This utility model provides a technical solution: a vacuum transfer box, comprising:
[0034] Box 1, with a transfer chamber 2 opened on the inside of box 1;
[0035] Guide rail 6 is fixed to the lower end of the inner wall of transfer chamber 2 to guide the placed turnover boxes;
[0036] This facilitates the guidance of the battery cell turnover boxes pushed into the inner side of the transfer chamber 2, ensuring that the turnover boxes are placed vertically and without tilting.
[0037] The sealing door panel 10 is rotatably installed at one end of the box body 1 to close the transfer chamber 2, and one end of the sealing door panel 10 has a locking structure that cooperates with the box body 1.
[0038] This allows for quick and easy sealing of the enclosure 1, thus isolating the internal environment of the enclosure 1 from the external environment and preventing the battery from coming into contact with moisture and dust, achieving complete sealing.
[0039] A vacuuming structure is installed at the top of the chamber 1 to evacuate the inside of the chamber 1.
[0040] It can extract air from the inside of the chamber 1 and maintain a negative pressure inside the chamber 1.
[0041] In this embodiment, preferably, a buffer 12 is provided at one end of the inner side of the transfer chamber 2 to provide elastic buffering for the turnover box. The buffer 12 is preferably of model JHQ-C-7, which is convenient to reduce the collision generated during loading, unloading and transportation of battery cells.
[0042] In this embodiment, preferably, the vacuuming structure includes a ball valve 3 and a vacuum pipe 4. The vacuum pipe 4 is fixed to the top of the box 1, and the lower end of the vacuum pipe 4 passes through the box 1 and is connected to the interior of the transfer chamber 2. A ball valve 3 is installed on one side of the ball valve 3 to open and close the interior of the box, so as to facilitate the vacuuming of the inside of the box 1 by the vacuuming machine. After vacuuming, the vacuum pipe 4 is closed by the ball valve 3 to maintain the vacuum environment inside the box 1.
[0043] In this embodiment, preferably, the upper surface of the housing 1 is provided with an instrument interface 5 for connecting instruments, which facilitates the installation of a barometer and a hygrometer, thereby enabling real-time monitoring of the internal air pressure and humidity of the housing 1 from the outside.
[0044] In this embodiment, preferably, the locking structure includes a lock nose 11 and a buckle 8. The lock nose 11 is fixed to one end face of the sealing door panel 10, and a buckle 8 corresponding to the lock nose 11 is rotatably installed on one side of the box body 1, so as to quickly seal the box body 1 and maintain a sealed environment.
[0045] In this embodiment, preferably, the guide rail 6 is "L" shaped, and the inner wall of the transfer chamber 2 is connected to the limiting pin 7 by a hook. The limiting pin 7 cooperates with the pin hole opened on the inner side of the guide rail 6 to limit the turnover box, so as to restrict the turnover box containing the battery cells to the inner side of the transfer chamber 2 to avoid the turnover box from shaking randomly.
[0046] In this embodiment, preferably, a push-pull handle 9 is fixed on one end face of the box 1 to facilitate the movement of the box 1.
[0047] In this embodiment, preferably, the lower surface of the box 1 is provided with casters 13 to facilitate better movement of the box 1.
[0048] The working principle and usage process of this utility model are as follows: During use, the turnover box containing the battery cells can be moved to the box body 1 by a forklift 14, aligning the battery cell turnover box with the guide rail 6. Figure 5As shown, the battery cell turnover box is pushed to slide into the inner side of the transfer chamber 2 via the guide rail 6. Similarly, another battery cell turnover box can be lifted and pushed into the inner side of another transfer chamber 2 via the forklift 14. Then, the limit pin 7 is removed from the hook and inserted into the pin hole inside the guide rail 6 to lock the position of the turnover box. The sealing door plate 10 is rotated to one side of the box body 1, and then the transfer chamber 2 is sealed by the cooperation of the buckle 8 and the lock lug 11. The vacuum machine is connected through the vacuum pipe 4 to evacuate the inner side of the box body 1. The air pressure or humidity inside the box body 1 is observed through the instrument installed on the instrument interface 5. If it remains constant, it can be ensured that the box body 1 is sealed well for transfer. After arriving at the destination workshop, the ball valve 3 on one side of the vacuum pipe 4 is opened to restore the air pressure inside the box body 1 to the normal indoor air pressure. The sealing door plate 10 is opened and the turnover box is unloaded by the forklift 14. In this way, one cross-workshop transfer of battery cells is completed.
[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A vacuum transport box, characterized in that, include: The box (1) has a transfer chamber (2) inside. The guide rail (6) is fixed to the lower end of the inner wall of the transfer chamber (2) to guide the placed turnover box; A sealing door panel (10) is rotatably installed at one end of the box body (1) to close the transfer chamber (2), and one end of the sealing door panel (10) has a locking structure that cooperates with the box body (1); A vacuum structure is provided at the top of the box (1) to evacuate the inside of the box (1).
2. A vacuum transport box according to claim 1, characterized in that: A buffer (12) is provided on one end of the inner side of the transfer chamber (2) to provide elastic cushioning for the turnover box.
3. A vacuum transfer box according to claim 1, characterized in that: The vacuuming structure includes a ball valve (3) and a vacuum pipe (4). The vacuum pipe (4) is fixed to the top of the box (1), and the lower end of the vacuum pipe (4) passes through the box (1) and is connected to the interior of the transfer chamber (2). A ball valve (3) is installed on one side of the ball valve (3) to open and close its interior.
4. The vacuum transport box of claim 1, wherein: The upper surface of the housing (1) is provided with an instrument interface (5) for connecting the instrument.
5. The vacuum transport box of claim 1, wherein: The latch structure includes a latch (11) and a buckle (8). The latch (11) is fixed to one end face of the sealed door panel (10), and a buckle (8) corresponding to the latch (11) is rotatably installed on one side of the box body (1).
6. The vacuum transport box of claim 1, wherein: The guide rail (6) is L-shaped. The inner wall of the transfer chamber (2) is connected to a limiting pin (7) by a hook. The limiting pin (7) cooperates with the pin hole opened on the inner side of the guide rail (6) to limit the position of the turnover box.
7. The vacuum transport box of claim 1, wherein: A push-pull handle (9) is fixed to one end face of the box (1).
8. The vacuum transport box of claim 1, wherein: The lower surface of the box (1) is provided with casters (13).