Liquid injection nozzle of liquid injection machine for square aluminum shell battery for energy storage

Abstract

The utility model discloses a liquid injection nozzle of a liquid injection machine of a square aluminum shell battery for energy storage, which comprises a shell, a sealing gasket is arranged at the bottom of the shell, a vacuum pipe and a liquid injection pipe which are adjacently arranged are fixedly connected in the shell, and the top end of the liquid injection pipe is in threaded connection with a connecting pipe. A mounting plate is fixedly connected to the position, located below the connecting pipe, in the liquid injection pipe, and a heater is mounted at the top of the mounting plate. Through the structure, the design is reasonable, the structure is compact, the liquid injection efficiency can be effectively improved, meanwhile, the risk of liquid leakage is reduced, and the method is suitable for the production process of the square aluminum shell battery for energy storage.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a liquid filling nozzle of a square aluminum shell battery filling machine for energy storage. Background Art

[0002] Prismatic aluminum-cased batteries for energy storage are used to store electrical energy and are widely used in electric vehicles, renewable energy systems (such as solar and wind power), and other applications requiring energy storage. The electrolyte injection machine is a device specifically designed to inject electrolyte into the battery, ensuring that the electrolyte fills the battery evenly and quickly.

[0003] The existing battery filling process suffers from issues such as lengthy filling times and insufficient sealing, which can negatively impact production efficiency. This is undoubtedly a pressing issue for the modern battery manufacturing industry, which strives for high efficiency and low costs. Therefore, the present invention provides a filling nozzle for a square aluminum-cased battery filling machine for energy storage, addressing the aforementioned issues. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid filling nozzle of a square aluminum shell battery filling machine for energy storage, which has a reasonable design and a compact structure, can effectively improve the efficiency of liquid filling, and reduce the risk of liquid leakage, and is suitable for the production process of square aluminum shell batteries for energy storage.

[0005] To achieve the above-mentioned purpose, a square aluminum shell battery filling machine filling nozzle for energy storage is provided, comprising a shell, a sealing gasket is provided at the bottom of the shell, an adjacent vacuum tube and a filling tube are fixedly connected inside the shell, a connecting tube is threadedly connected to the top of the filling tube, a mounting plate is fixedly connected inside the filling tube and below the connecting tube, and a heater is installed on the top of the mounting plate.

[0006] According to the injection nozzle of the square aluminum shell battery injection machine for energy storage, a one-way valve is installed at the bottom end of the injection pipe.

[0007] According to the injection nozzle of the square aluminum shell battery injection machine for energy storage, a circular plate is fixedly connected inside the injection tube and above the heater, a sealing ring is provided on the top of the circular plate, and the bottom end of the connecting tube is in contact with the sealing ring.

[0008] According to the liquid filling nozzle of the square aluminum shell battery filling machine for energy storage, the top end of the vacuum tube is connected to an air pipe.

[0009] According to the liquid filling nozzle of the square aluminum shell battery filling machine for energy storage, a threaded portion is provided on the outer surface of the connecting tube and on one side close to the top, and a nut is fixedly connected to the outer side of the connecting tube and below the threaded portion.

[0010] According to the liquid filling nozzle of the square aluminum shell battery filling machine for energy storage, the liquid filling pipe and the connecting pipe are made of polytetrafluoroethylene, and the sealing gasket and the sealing ring are both made of fluororubber.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the existing technology, the filling nozzle of the square aluminum shell battery filling machine for energy storage has a reasonable design and compact structure. It can effectively improve the efficiency of filling and reduce the risk of liquid leakage. It is suitable for the production process of square aluminum shell batteries for energy storage.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a first overall structural diagram of a liquid filling nozzle of a square aluminum shell battery filling machine for energy storage in the utility model;

[0016] Figure 2 This is a second overall structural diagram of a liquid filling nozzle of a square aluminum shell battery filling machine for energy storage in the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the structure of the liquid filling pipe and the connecting pipe of the liquid filling nozzle of the square aluminum shell battery filling machine for energy storage.

[0018] Legend:

[0019] 1. Shell; 2. Vacuum tube; 3. Air pipe; 4. Sealing ring; 5. Sealing gasket; 6. Liquid injection pipe; 7. Connecting pipe; 8. Nut; 9. Threaded part; 10. One-way valve; 11. Mounting plate; 12. Heater; 13. Ring plate. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Reference Figure 1-3The embodiment of the utility model is a liquid filling nozzle of a square aluminum shell battery filling machine for energy storage, which includes a shell 1. A sealing gasket 5 is provided at the bottom of the shell 1, which is used to contact the battery filling port during liquid injection to provide an additional sealing effect and prevent electrolyte leakage. The inside of the shell 1 is fixedly connected with an adjacent vacuum tube 2 and a liquid injection tube 6. The top of the vacuum tube 2 is connected with an air pipe 3, which is used to vacuum the inside of the battery before liquid injection to remove the air in the battery and improve the efficiency of electrolyte filling. A one-way valve 10 is installed at the bottom of the liquid injection tube 6 to ensure that the inside of the liquid injection tube 6 can only flow into the battery. The top of the liquid injection tube 6 is threadedly connected to a connecting tube 7, and a nut 8 is fixedly connected to the outside of the connecting tube 7 and below the threaded portion 9. By turning the nut 8 to drive the connecting tube 7 to rotate, the connecting tube 7 and the liquid injection tube 6 can be disassembled and assembled, so as to facilitate the replacement of the connecting tube 7. A mounting plate 11 is fixedly connected inside the injection tube 6 and below the connecting tube 7. A heater 12 is installed on the top of the mounting plate 11. The heater 12 is used to preheat the electrolyte so that the injected liquid can be heated when needed to reduce viscosity and improve injection efficiency.

[0022] A circular plate 13 is fixedly connected inside the liquid injection tube 6 and above the heater 12. A sealing ring 4 is provided on the top of the circular plate 13. The bottom end of the connecting tube 7 contacts the sealing ring 4 to form a good sealing structure to prevent liquid leakage.

[0023] A threaded portion 9 is provided on the outer surface of the connecting tube 7 and on one side near the top, which is convenient for connection with other components of the injection machine. The injection tube 6 and the connecting tube 7 are made of polytetrafluoroethylene, which has excellent chemical stability and high temperature resistance and can withstand the corrosion of the electrolyte and high temperature environment. The sealing gasket 5 and the sealing ring 4 are both made of fluororubber to ensure good sealing performance in high temperature and chemical environment.

[0024] Working principle: A sealing gasket 5 is provided at the bottom of the shell 1, which is used to provide an additional sealing effect when in contact with the battery filling port during liquid injection to prevent leakage of the electrolyte. A vacuum tube 2 and an air pipe 3 are provided to vacuum the interior of the battery before liquid injection to remove the air in the battery and improve the efficiency of electrolyte filling. The top of the liquid injection tube 6 is threadedly connected to a connecting tube 7, which is connected to the liquid injection tube 6 by a threaded connection, so that the connecting tube 7 and the liquid injection tube 6 can be easily disassembled and assembled by a nut 8, so as to facilitate the replacement of the connecting tube 7. At the same time, a heater 12 is installed inside the liquid injection tube 6, and the heater 12 is used to preheat the electrolyte so that the injected liquid can be heated when needed to reduce the viscosity and improve the liquid injection efficiency.

[0025] The liquid injection nozzle of this embodiment is reasonably designed and compact in structure, which can effectively improve the efficiency of liquid injection while reducing the risk of liquid leakage. It is suitable for the production process of square aluminum shell batteries for energy storage.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A square aluminum shell battery filling machine filling nozzle for energy storage, characterized in that: The invention comprises a shell (1), a sealing gasket (5) is provided at the bottom of the shell (1), a vacuum tube (2) and a liquid injection tube (6) arranged adjacent to each other are fixedly connected inside the shell (1), a connecting tube (7) is threadedly connected to the top of the liquid injection tube (6), a mounting plate (11) is fixedly connected inside the liquid injection tube (6) and below the connecting tube (7), and a heater (12) is installed on the top of the mounting plate (11).

2. The square aluminum shell battery filling machine for energy storage according to claim 1 is characterized in that: A one-way valve (10) is installed at the bottom end of the liquid injection pipe (6).

3. The liquid filling nozzle of a square aluminum shell battery filling machine for energy storage according to claim 2, characterized in that: A circular plate (13) is fixedly connected inside the liquid injection pipe (6) and above the heater (12). A sealing ring (4) is provided on the top of the circular plate (13). The bottom end of the connecting pipe (7) is in contact with the sealing ring (4).

4. The liquid filling nozzle of a square aluminum shell battery filling machine for energy storage according to claim 3, characterized in that: The top end of the vacuum tube (2) is connected to an air pipe (3).

5. The liquid filling nozzle of a square aluminum shell battery filling machine for energy storage according to claim 4, characterized in that: A threaded portion (9) is provided on the outer surface of the connecting pipe (7) and on one side close to the top end, and a nut (8) is fixedly connected to the outer side of the connecting pipe (7) and below the threaded portion (9).

6. The liquid filling nozzle of a square aluminum shell battery filling machine for energy storage according to claim 1, characterized in that: The injection pipe (6) and the connecting pipe (7) are made of polytetrafluoroethylene, and the sealing gasket (5) and the sealing ring (4) are both made of fluororubber.

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