Discharging device of power battery

Abstract

The utility model relates to the technical field of battery recovery, and discloses a discharging device of a power battery, which comprises a vibration disc used for conveying steel nails; the feeder comprises a first end and a second end, and the first end is connected with the discharge port of the vibration disc; the mounting seat is arranged on one side of the vibration disc; the air nail gun comprises a gun body, a pressure release valve arranged at the top of the gun body, a gun nozzle arranged at the bottom of the gun body, an air source connector and a magazine, the air source connector and the magazine are arranged on one side of the gun body, the gun body is installed on the installation base in a liftable mode, the magazine is connected with the second end of the feeder, and the gun nozzle is used for discharging steel nails ejected by the power battery; the upper part of the water tank is provided with an opening, the water tank is arranged below the gun nozzle, and the power battery is placed in the water tank. The discharging device of the power battery is high in discharging efficiency and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery recycling, in particular to a discharge device for a power battery. Background Art

[0002] With the rapid development of my country's new energy electric vehicle industry, more and more lithium batteries are put into the market. As the battery life ends, a large number of waste power batteries will be generated. Lithium power batteries contain a large amount of precious metals such as nickel, cobalt, manganese and lithium, which have the value of recycling and reuse. By recycling the precious metals in lithium batteries, the shortage of corresponding mineral resources can be alleviated, which is of great significance to the protection of the environment. Before recycling the battery, it needs to be discharged. The main discharge methods are salt solution immersion discharge and resistance discharge. However, the above discharge methods take a long time, resulting in low discharge efficiency and inconvenient operation. Utility Model Content

[0003] The utility model aims to provide a discharge device for a power battery, which has high discharge efficiency and is easy to operate.

[0004] In order to achieve the above object, the utility model provides a discharge device for a power battery, comprising:

[0005] Vibrating plate, used to transport steel nails;

[0006] A feeder, comprising a first end and a second end, wherein the first end is connected to the discharge port of the vibration plate;

[0007] A mounting seat, arranged on one side of the vibration plate;

[0008] A pneumatic nail gun, comprising a gun body, a pressure relief valve arranged at the top of the gun body, a gun nozzle arranged at the bottom of the gun body, an air source interface and a magazine arranged at one side of the gun body, wherein the gun body is movably mounted on the mounting seat, the magazine is connected to the second end of the feeder, and the gun nozzle is used to discharge the steel nails shot by the power battery; and

[0009] A water tank with an opening is provided on the upper part, the water tank is arranged below the gun nozzle, and the power battery is placed in the water tank.

[0010] In some embodiments, the steel nail is a T-shaped steel nail.

[0011] In some embodiments, the length of the steel nail is greater than 40 mm.

[0012] In some embodiments, a conveyor belt is further included, wherein the conveyor belt is disposed below the gun nozzle and is used to transport the water tank.

[0013] In some embodiments, the power battery is a lithium iron phosphate battery or a ternary lithium battery.

[0014] In some embodiments, the pneumatic nail gun further includes a switch, which is disposed on the gun body and is used to control the gun nozzle to fire the steel nails.

[0015] In some embodiments, the pneumatic nail gun further includes a rangefinder, which is disposed on the gun body and is used to detect the distance between the gun nozzle and the power battery.

[0016] The utility model provides a discharge device for a power battery. Compared with the prior art, the utility model has the following beneficial effects:

[0017] The feeder includes a first end and a second end, the first end is connected to the discharge port of the vibration disk, and the magazine is connected to the second end of the feeder, so that the steel nails on the vibration disk are automatically delivered to the magazine through the feeder, which effectively saves manpower and makes the operation convenient, and the gun nozzle is used to discharge the steel nails shot out of the power battery. Compared with the existing salt solution immersion discharge and resistance discharge, the discharge efficiency of the method of the present application is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view enlarged structural schematic diagram of the discharge device of the power battery provided in an embodiment of the utility model.

[0019] Figure 2 A schematic diagram of the top structure of a discharge device of a power battery provided in an embodiment of the utility model.

[0020] Figure 3 This is an enlarged schematic diagram of the structure of the power battery after being shot by steel nails.

[0021] In the figure: 1. Vibrating plate; 2. Steel nails; 3. Feeder; 4. Mounting base; 5. Air nail gun; 51. Gun body; 52. Pressure relief valve; 53. Gun nozzle; 54. Air source interface; 55. Magazine; 56. Switch; 57. Rangefinder; 6. Power battery; 7. Water tank; 8. Conveyor belt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0023] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.

[0024] like Figure 1-3 As shown, the discharge device of the power battery of the embodiment of the utility model comprises a vibration plate 1, a feeder 3, a mounting seat 4, an air nail gun 5 and a water tank 7 with an opening on the upper part. The water tank 7 is arranged below the gun nozzle 53, and the power battery 6 is placed in the water tank 7. The vibration plate 1 is used to convey the steel nails 2; the feeder 3 comprises a first end 31 and a second end 32, and the first end 31 is connected to the discharge port of the vibration plate 1; the mounting seat 4 is arranged on one side of the vibration plate 1; the air nail gun 5 comprises a gun body 51, a pressure relief valve 52 arranged at the top of the gun body 51, a gun nozzle 53 arranged at the bottom of the gun body 51, an air source interface 54 and a magazine 55 arranged on one side of the gun body 51, the gun body 51 can be lifted and installed on the mounting seat 4, the magazine 55 is connected to the second end 32 of the feeder 3, and the gun nozzle 53 is used to discharge the steel nails 2 shot out of the power battery 6.

[0025] When the pneumatic nail gun 5 is working, the air source interface 54 is connected to the compressed gas to provide power for the normal operation of the pneumatic nail gun 5; the steel nails 2 in the magazine 55 can enter the gun body 51 and be driven by the compressed gas to be fired from the gun nozzle 53 and enter the power battery 6 to realize the discharge of the power battery 6; when the air pressure in the gun body 51 exceeds the standard, the pressure relief valve 52 will automatically open to release the excess pressure in the gun body 51 to prevent the gun body 51 from being damaged by excessive pressure; when the air pressure in the gun body 51 drops to the normal working pressure, the pressure relief valve 52 will automatically close to prevent the compressed gas from leaking.

[0026] Based on the above configuration, the feeder 3 includes a first end 31 and a second end 32, the first end 31 is connected to the discharge port of the vibration disk 1, and the magazine 55 is connected to the second end 32 of the feeder 3, so that the steel nails 2 on the vibration disk 1 are automatically delivered to the magazine 55 through the feeder 3, which effectively saves manpower and makes the operation convenient, and the gun nozzle 53 is used to discharge the steel nails 2 shot out by the power battery. Compared with the existing salt solution immersion discharge and resistance discharge, the discharge efficiency of the method of the present application is higher.

[0027] In one embodiment, the steel nail 2 is a T-shaped steel nail. The length of the steel nail 2 is greater than 40 mm. The steel nail 2 can penetrate into the power battery 6 to discharge the power battery 6.

[0028] In one embodiment, in order to further improve the discharge efficiency of the power battery 6, the discharge device of the power battery further includes a conveyor belt 8, which is disposed below the gun nozzle 53 and is used to transport the water tank 7. The conveyor belt 8 continuously transports the water tank 7, so that the power battery 6 in the water tank 7 can be continuously discharged.

[0029] Specifically, the power battery 6 is a lithium iron phosphate battery or a ternary lithium battery.

[0030] In one embodiment, the air nail gun 5 further includes a switch 56, which is disposed on the gun body 51 and is used to control the gun nozzle 53 to fire the nails. The through-hole switch 56 is used to control the air nail gun 5, which is convenient for operation.

[0031] In one embodiment, the pneumatic nail gun 5 further includes a rangefinder 57, which is disposed on the gun body 51 and is used to detect the distance between the gun nozzle 53 and the power battery 6. Detection by the rangefinder 57 is conducive to keeping the gun nozzle 53 and the power battery 6 in a suitable position. In order to maintain the piercing effect, the gun nozzle 53 is attached to the surface of the power battery 6.

[0032] The working process of the above-mentioned discharge device is:

[0033] 1. Remove the waste power battery module from the new energy vehicle, and remove the single lithium iron phosphate battery or ternary lithium battery in the waste power battery module, and put it in a pre-prepared water tank filled with tap water with a depth of 15cm-50cm to submerge the single lithium iron phosphate battery or ternary lithium battery, and the water temperature is 5℃-30℃;

[0034] 2. Turn on the air nail gun and put a 50mm long T-shaped steel nail into the vibrating plate. The steel nail will be delivered to the magazine through the feeder. Fill the compressed air through the air source interface and control the air pressure at 8kgf / cm2. The conveyor belt conveys the single lithium iron phosphate battery or ternary lithium battery in the water tank to the bottom of the air nail gun. Adjust the height so that the gun nozzle is close to the battery surface. Hit three steel nails at different positions (such as Figure 3 shown);

[0035] 3. Place the single lithium iron phosphate battery or ternary lithium battery shot into the steel nail in the water and discharge it in the water along the conveyor belt. Wait until there are no bubbles in the battery and the battery temperature is ≤30℃. Use a multimeter to test the battery voltage. When the battery voltage drops to 0-1V, it can be taken out of the water.

[0036] 4. The single lithium iron phosphate battery or ternary lithium battery discharged in steps 2 and 3 is put into a double-shaft crusher for crushing. After crushing, the battery materials are separated from the steel nails by a magnetic separation device. The remaining battery materials are crushed and screened, and the battery black powder, copper foil and aluminum foil are separated by different mesh sizes.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A discharge device for a power battery, characterized in that: include: A vibrating plate (1) for conveying steel nails (2); A feeder (3), comprising a first end (31) and a second end (32), wherein the first end (31) is connected to a discharge port of the vibration plate (1); A mounting seat (4) is arranged on one side of the vibration plate (1); A pneumatic nail gun (5), comprising a gun body (51), a pressure relief valve (52) arranged at the top of the gun body (51), a gun nozzle (53) arranged at the bottom of the gun body (51), an air source interface (54) and a magazine (55) arranged at one side of the gun body (51), the gun body (51) being movably mounted on the mounting seat (4), the magazine (55) being connected to the second end (32) of the feeder (3), and the gun nozzle (53) being used for discharging the steel nails (2) shot out of the power battery (6); and A water tank (7) with an opening is provided at the top. The water tank (7) is arranged below the gun nozzle (53), and the power battery (6) is placed in the water tank (7).

2. The discharge device of the power battery according to claim 1, characterized in that: The steel nail (2) is a T-shaped steel nail.

3. The discharge device of the power battery according to claim 1, characterized in that: The length of the steel nail (2) is greater than 40 mm.

4. The discharge device of the power battery according to claim 1, characterized in that: It also comprises a conveyor belt (8), which is arranged below the gun nozzle (53) and is used to transport the water tank (7).

5. The power battery discharge device according to claim 1, characterized in that: The power battery (6) is a lithium iron phosphate battery or a ternary lithium battery.

6. The discharge device of the power battery according to claim 1, characterized in that: The pneumatic nail gun (5) further comprises a switch (56), which is arranged on the gun body (51) and is used to control the gun nozzle (53) to shoot steel nails.

7. The discharge device of the power battery according to claim 1, characterized in that: The pneumatic nail gun (5) further comprises a rangefinder (57), which is arranged on the gun body (51) and is used to detect the distance between the gun nozzle (53) and the power battery (6).

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