Sealing device for liquid injection tray

Abstract

The utility model discloses a sealing device for a liquid injection tray, which comprises a processing table, the top surface of the processing table is connected with a movable base in a sliding manner, the liquid injection tray is arranged above the movable base, a fixed plate is arranged above the liquid injection tray, and a plurality of sealing cylinders penetrating through the fixed plate are fixed in the fixed plate. A through hole is formed in the central axis position of the sealing cylinder, the bottom end of the through hole is communicated with a lithium battery liquid injection position, a liquid injection port is formed in the top end of the through hole, an opening rubber sheet is mounted at the liquid injection port, an opening is formed in the center of the opening rubber sheet, the opening can be opened when being extruded by external force, and the opening rubber sheet is in a sealed state when the external force is removed. According to the sealing device provided by the utility model, the sealing cylinder, the opening rubber sheet and other structures are arranged in the fixing plate, so that a closed channel is formed in the liquid injection process of the lithium battery, the liquid injection in a sealed environment is completed, the liquid injection effect is better, and the automation degree is higher.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery technology, specifically relating to a sealing device for a liquid injection tray. Background Technology

[0002] With continuous social development and technological progress, automated production has become a trend, gradually replacing traditional manual labor and injecting new momentum into the sustainable development of enterprises. Therefore, battery manufacturers also need to keep pace with the times, actively promote technological transformation and upgrading, and vigorously develop automated production to improve their "intelligent manufacturing" level and achieve sustainable development.

[0003] Existing lithium batteries require a sealed environment during the electrolyte filling process to prevent external dust and debris from affecting the filling effect and thus impacting the battery's lifespan, which presents certain limitations. Summary of the Invention

[0004] The purpose of this invention is to provide a sealing device for a liquid injection tray to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sealing device for a liquid injection tray includes a processing table. A movable base is slidably connected to the top surface of the processing table. A liquid injection tray for placing a lithium battery is installed above the movable base. A fixed plate is arranged above the liquid injection tray. A plurality of sealing cylinders penetrating the fixed plate are fixed in the fixed plate. A through hole is opened at the central axis position of the sealing cylinder. The bottom end of the through hole is connected to the liquid injection position of the lithium battery. The top end of the through hole is a liquid injection port. An open rubber sheet is installed at the liquid injection port. The open rubber sheet has an opening in the center. The opening can be opened when subjected to external force. When the external force is removed, the open rubber sheet is in a sealed state.

[0007] As a preferred technical solution, a plurality of buffer mechanisms are installed between the movable base and the injection tray, and the movable base and the injection tray are elastically connected by the buffer mechanisms. Each buffer mechanism includes a hollow sleeve, a buffer spring located inside the hollow sleeve, and a sliding column connected to the top of the buffer spring. The hollow sleeve is fixed to the top of the movable base, and the sliding column is fixed to the bottom of the injection tray. More preferably, shock-absorbing pads are fixedly connected to both ends of the buffer spring. By designing the movable base and the injection tray as an elastic connection, excessive pressure during injection can be effectively avoided, preventing damage to the sealing cylinder.

[0008] As a preferred technical solution, a heating element is fixedly installed on one side of the interior of the sealed cylinder, and the heating element is electrically connected to a first storage battery via a wire; a temperature controller is fixedly installed on the other side of the interior of the sealed cylinder. When it is necessary to heat the sealed cylinder, the heating element is energized by the first storage battery to generate heat, thereby achieving the purpose of heating the sealed cylinder.

[0009] As a preferred technical solution, a serpentine cooling pipe is installed inside the fixing plate. An inlet and an outlet are respectively provided at both ends of one side of the fixing plate. Cooling water can be supplied to the serpentine cooling pipe through the inlet, and water can be discharged from the serpentine cooling pipe through the outlet. When the temperature inside the sealing cylinder is too high and needs to be cooled, cooling water can be introduced into the serpentine cooling pipe to achieve the purpose of cooling the sealing cylinder.

[0010] As a preferred technical solution, a positioning mechanism is installed between the injection tray and the fixing plate. The positioning mechanism includes several positioning posts and positioning sleeves corresponding to each positioning post. The lower end of each positioning sleeve has a positioning hole adapted to the positioning post, and the positioning post is fitted into the inside of the positioning sleeve through the positioning hole. The positioning posts are fixed to the top periphery of the injection tray, and the positioning sleeves are fixed to the bottom periphery of the fixing plate. More preferably, there are four positioning posts, distributed at the four corners of the injection tray. The positioning posts and positioning sleeves at the four corners allow for precise placement of the fixing plate on top of the injection tray, providing good positioning accuracy.

[0011] In a further embodiment, an electromagnet is installed inside the positioning sleeve, and the electromagnet is located above the positioning hole; the electromagnet is electrically connected to a second battery via a wire. The second battery provides power to the electromagnet, enabling it to generate magnetism and magnetically fix the positioning post, providing excellent fixation. The magnet can be disconnected after the liquid injection is completed.

[0012] As a preferred technical solution, a pair of parallel slide rails are fixed to the top of the processing table, and a groove adapted to the slide rails is provided on the bottom of the movable base. The movable base slides on the processing table by sliding along the slide rails through the groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The sealing device provided by this utility model, through the design of a sealing cylinder and an open rubber sheet in the fixed plate, forms a closed channel during the lithium battery liquid injection process, thereby completing the liquid injection in a sealed environment and resulting in better liquid injection effect. Compared with traditional dust covers, it is more flexible and has a higher degree of automation.

[0015] The sealing device provided by this utility model can autonomously adjust the temperature inside the sealing channel by installing heating elements and a temperature controller inside the sealing cylinder and setting a serpentine cooling tube in the positioning plate, so that the liquid can be at an optimal temperature during injection, avoiding the effect of excessively high or low temperatures affecting the injection effect, and has a very good temperature regulation function. Attached Figure Description

[0016] Figure 1 A schematic diagram of the sealing device provided by this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixing plate in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the sealing cylinder in this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the fixing plate in this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the positioning sleeve in this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the buffer column in this utility model.

[0022] In the diagram: 1. Processing table; 2. Movable base; 3. Loading tray; 4. Positioning column; 5. Fixing plate; 6. Sealing cylinder; 7. Positioning sleeve; 8. Injection port; 9. Open rubber sheet; 10. Serpentine cooling pipe; 11. Temperature controller; 12. Heating element; 13. Through hole; 14. First battery; 15. Electromagnetic block; 16. Second battery; 17. Positioning hole; 18. Buffer column; 19. Hollow sleeve; 20. Buffer spring; 21. Shock-absorbing pad; 22. Sliding column; 23. Slide rail. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 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 can understand the specific meaning of the above terms in this utility model according to the specific circumstances. "Sliding connection" refers to two parts connected together and capable of relative movement.

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations of this utility model. The terms "first" and "second" in this utility model do not represent a specific quantity or order, but are merely used for distinguishing names.

[0026] Please see Figure 1-6 A sealing device for a liquid injection tray includes a processing table 1. A movable base 2 is slidably mounted on the upper end of the processing table 1. A liquid injection tray 3 is connected to the upper end of the movable base 2. A fixed plate 5 is mounted on the upper end of the liquid injection tray 3. Positioning posts 4 are fixedly connected to the four corners of the upper end of the liquid injection tray 3. Positioning sleeves 7 are fixedly connected to the four corners of the lower end of the fixed plate 5. The positioning posts 4 are sleeved inside the positioning sleeves 7. The positioning posts 4 and the positioning sleeves 7 cooperate to form a positioning mechanism. Several sealing cylinders 6 that penetrate the fixed plate are fixed in the fixed plate 5. A through hole 13 is opened at the central axis of the sealing cylinder 6. The bottom end of the through hole 13 is connected to the liquid injection position of the lithium battery. The top end of the through hole is a liquid injection port 8. An open rubber sheet 9 is installed at the liquid injection port 13. The open rubber sheet has an opening in the center. The opening can be opened when it is squeezed by external force. When the external force is removed, the open rubber sheet is in a sealed state.

[0027] In this embodiment, the lithium battery is placed on the upper end of the liquid injection tray 3. At this time, the fixing plate 5 is picked up by the mechanical gripper, and the positioning sleeves 7 set at the four corners can be accurately placed on the upper end of the liquid injection tray 3, which has a certain positioning function. At this time, the sealing cylinder 6 set in the fixing plate 5 can abut against the liquid injection point of the lithium battery. During liquid injection, the liquid injection device can be inserted into the interior of the open rubber sheet 9. The open rubber sheet 9 is made of a closable rubber material, so that the liquid injection process is a closed channel with better sealing and better liquid injection effect. This design makes the lithium battery liquid injection process form a closed channel, thereby completing the liquid injection in a sealed environment and making the liquid injection effect better. Compared with the traditional dust cover, it is more flexible and has a higher degree of automation.

[0028] Specifically, a heating element 12 is fixedly connected to one side of the inside of the sealed cylinder 6, and the heating element 12 is electrically connected to the first storage battery 14 through a wire.

[0029] In this embodiment, the first storage battery 14 can provide power to the heating element 12, so that the heating element 12 can be powered and heated, thereby heating the sealing cylinder 6.

[0030] Specifically, a serpentine cooling pipe 10 is fixedly connected inside the fixed plate 5. A water inlet and a water outlet are respectively provided at both ends of one side of the fixed plate 5. Cooling water can be delivered into the serpentine cooling pipe through the water inlet and the water in the serpentine cooling pipe can be discharged through the water outlet. A thermostat 11 is fixedly connected to the other side of the sealed cylinder 6.

[0031] In this embodiment, the serpentine cooling pipe 10 inside the fixed plate 5 is connected to the inlet and outlet water ports on both sides. The temperature controller 11 can monitor the temperature of the channel inside the sealed cylinder 6. When the temperature is too high, an appropriate amount of circulating water can be introduced into the fixed plate 5 from the outside for cooling. When the temperature is too low, the heating element 12 can be connected to the power supply for heating. This design can automatically adjust the temperature inside the sealed channel so that the liquid can be injected at an optimal temperature, avoiding the effect of excessively high or low temperatures affecting the injection effect. It has a very good temperature regulation function.

[0032] Specifically, a positioning hole 17 is fixedly opened inside the positioning sleeve 7, and an electric magnetic block 15 is connected inside the positioning sleeve 7 above the positioning hole 17. The electric magnetic block 15 is electrically connected to a second battery 16 through a wire.

[0033] In this embodiment, the second battery 16 can provide power to the electric magnetic block 15, so that the electric magnetic block 15 can generate magnetism and magnetically fix the positioning column 4, which has a good fixing effect. After the liquid injection is completed, the power can be cut off and the block can be separated.

[0034] Several buffer mechanisms are installed between the movable base 2 and the injection tray 3, and are elastically connected through the buffer mechanisms. The buffer mechanism includes a hollow sleeve 19, a buffer spring 20 located inside the hollow sleeve, and a sliding column 22 connected to the top of the buffer spring. The hollow sleeve 19 is fixed to the top of the movable base 2, and the sliding column 22 is fixed to the bottom of the injection tray 3. Shock-absorbing pads 21 are fixedly connected to both ends of the buffer spring 20.

[0035] In this embodiment, by using an elastic connection between the movable base 2 and the liquid injection tray 3, and with the addition of a shock-absorbing pad 21, the stability of the spring can be enhanced. During the liquid injection process, excessive pressure during liquid injection can be avoided, which could damage the sealing cylinder 6. By using an elastic connection, when the pressure is too high, the buffer spring 20 can deform to release the pressure, thus providing excellent protection for the sealing cylinder 6.

[0036] Specifically, a pair of parallel slide rails 23 are fixed on the top of the processing table, and a slide groove adapted to the slide rails is opened on the bottom of the movable base. The movable base slides on the slide rails through the slide grooves, thereby realizing the sliding of the movable base on the processing table.

[0037] 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 sealing device for a liquid injection tray, characterized in that: The device includes a processing table, a movable base slidably connected to the top surface of the processing table, an injection tray mounted above the movable base, a fixed plate arranged above the injection tray, and several sealing cylinders penetrating the fixed plate fixed in the fixed plate. A through hole is opened at the central axis position of the sealing cylinder, the bottom end of the through hole is connected to the lithium battery injection position, and the top end of the through hole is the injection port, at which an open rubber sheet is installed.

2. The sealing device for the injection tray according to claim 1, characterized in that: Several buffer mechanisms are installed between the movable base and the injection tray, and the movable base and the injection tray are elastically connected through the buffer mechanisms. The buffer mechanism includes a hollow sleeve, a buffer spring located inside the hollow sleeve, and a sliding column connected to the top of the buffer spring. The hollow sleeve is fixed to the top of the movable base, and the sliding column is fixed to the bottom of the injection tray.

3. The sealing device for the injection tray according to claim 2, characterized in that: Both ends of the buffer spring are fixedly connected to shock-absorbing pads.

4. The sealing device for the injection tray according to claim 1, characterized in that: A heating element is fixedly installed on one side of the inside of the sealed cylinder, and the heating element is electrically connected to a first storage battery via a wire; a temperature controller is fixedly installed on the other side of the inside of the sealed cylinder.

5. The sealing device for the injection tray according to claim 1, characterized in that: The fixed plate is equipped with a serpentine cooling pipe inside, and an inlet and an outlet are respectively provided at both ends of one side of the fixed plate.

6. The sealing device for the injection tray according to any one of claims 1 to 5, characterized in that: A positioning mechanism is installed between the injection tray and the fixing plate. The positioning mechanism includes a plurality of positioning posts and positioning sleeves corresponding to each positioning post. The lower end of the positioning sleeve has a positioning hole adapted to the positioning post. The positioning post is sleeved inside the positioning sleeve through the positioning hole. The positioning post is fixed to the top periphery of the injection tray, and the positioning sleeve is fixed to the bottom periphery of the fixing plate.

7. The sealing device for the injection tray according to claim 6, characterized in that: The number of positioning posts is four, and the four positioning posts are respectively distributed at the four top corners of the injection tray.

8. The sealing device for the injection tray according to claim 6, characterized in that: An electric magnetic block is installed inside the positioning sleeve, and the electric magnetic block is located above the positioning hole; the electric magnetic block is electrically connected to a second battery through a wire.

9. The sealing device for the injection tray according to any one of claims 1 to 5, characterized in that: The top of the processing table is fixed with a pair of parallel slide rails, and the bottom of the movable base is provided with a slide groove that matches the slide rails.

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