Rotary waste lithium battery discharging equipment

Abstract

The utility model provides rotary waste lithium battery discharging equipment which comprises a rack assembly, a moving assembly, a discharging assembly and a heat dissipation water tank, the rack assembly comprises a rack, and the moving assembly comprises a moving chassis carrying waste lithium batteries and a rotary module driving the moving chassis to do horizontal annular movement; the heat dissipation water tank is fixed at the central position of the rack, is arranged at the inner side end of the rotary module and is matched with the annular moving track of the rotary module; the discharging assembly comprises a discharging unit correspondingly arranged on the movable chassis, a waste lithium battery to be discharged is placed on the discharging unit and is discharged while horizontally and annularly moving along with the movable chassis, and the discharging unit comprises a heating wire and discharging clamps which are arranged in pairs and are respectively clamped on a positive pole lug and a negative pole lug of the waste lithium battery to be discharged; the discharge clamp is connected with the heating wire through a cable, and the heating wire is soaked in cold water in the heat dissipation water tank. The waste lithium battery discharging device can safely discharge waste lithium batteries on a large scale in a pollution-free manner, and is particularly suitable for waste square lithium batteries.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste lithium battery recycling, and in particular relates to a waste lithium battery discharging device. Background Art

[0002] With the vigorous development of my country's new energy vehicle industry in recent years, a large number of lithium-ion power batteries have been used. The service life of lithium batteries is generally 5-8 years. More and more large-scale lithium batteries will face retirement.

[0003] Because lithium batteries contain valuable metals such as nickel, cobalt, manganese, and lithium, which have high recycling value, they often retain a certain amount of charge when removed from new energy vehicles and two-wheeled new energy vehicles. If disassembled while charged, they are prone to fire, posing a safety hazard. Therefore, discharge is one of the most critical steps in the lithium battery recycling and disassembly process. Currently, discharge treatment for recycled lithium batteries primarily involves salt water discharge and battery cabinet discharge. These discharge methods are complex, time-consuming, and inefficient, making them insufficient for large-scale, safe, efficient, and pollution-free discharge. They no longer meet the demand for large-scale lithium battery discharge recycling and disassembly.

[0004] Therefore, it is necessary to solve the above-mentioned defects. Summary of the Invention

[0005] The purpose of the utility model is to provide a rotary waste lithium battery discharge device, which can discharge waste lithium batteries safely in large quantities and without pollution.

[0006] The utility model provides a rotary waste lithium battery discharge device, comprising a frame assembly, a mobile assembly, a discharge assembly and a heat dissipation water tank. The frame assembly comprises a frame, and the frame is constructed of a plurality of profiles to form a rectangular frame structure. The mobile assembly comprises a plurality of mobile chassis loaded with waste lithium batteries and a rotary module for driving each of the mobile chassis to perform horizontal circular movement. The rotary module is fixed on the frame; the heat dissipation water tank is used to store cold water for heat dissipation, is fixed at the center of the frame and is located at the inner side end of the rotary module. The heat dissipation water tank is composed of two parallel spaced The two long strip grooves and two oppositely arranged semicircular grooves are connected; the discharge assembly includes a discharge unit correspondingly placed on the mobile chassis, and the used lithium battery to be discharged is placed on the discharge unit, so that the used lithium battery to be discharged is discharged while performing horizontal circular movement with the mobile chassis, and the discharge unit includes a heating wire and at least one discharge clamp arranged in a pair, which is used to clamp the positive electrode tab and the negative electrode tab of the used lithium battery to be discharged respectively, and the discharge clamp is connected to the heating wire through a cable, and the heating wire is immersed in the cold water in the heat dissipation tank.

[0007] Optionally, the rotary module includes a motor, a reducer connected to the motor output shaft, a driving sprocket connected to the reducer output shaft, a driven sprocket spaced apart from the driving sprocket, and a chain sleeved on the driving sprocket and the driven sprocket and moving in coordination with the driving sprocket and the driven sprocket. A plurality of the mobile chassis are evenly spaced apart and mounted on the chain. The chain drives the mobile chassis to move horizontally in a circular motion under the drive of the driving sprocket.

[0008] Optionally, guide wheels are provided at the bottom of the mobile chassis, and the guide wheels are pressed on guide rails in pairs, and the guide rails are fixed on the frame.

[0009] Optionally, the discharge unit also includes a battery mounting component and a heating wire bracket, the battery mounting component includes a carrier plate and a battery frame, the carrier plate is fixed on the mobile chassis, and the battery frame is fixed on the carrier plate, and is used to place used lithium batteries to be discharged; the heating wire is installed on the heating wire bracket, and the heating wire bracket includes a suspension bracket and an arc-shaped fixing bracket, one end of the suspension bracket is fixed on the battery mounting component, and the other end extends in a cantilevered manner toward the heat sink and is connected to the arc-shaped fixing bracket, a plurality of the heating wires are hung on the arc-shaped fixing bracket and immersed in the cold water in the heat sink, and when the discharge unit makes a rotary circular motion, the arc center of the arc fixing bracket coincides with the arc centers at both ends of the heat sink.

[0010] Optionally, the heating wire is spirally wound.

[0011] Optionally, an insulating sheet is provided between the heating wire and the arc-shaped fixing frame.

[0012] Optionally, a control box and a button box are provided on the outer side end of the rack.

[0013] The utility model loads each waste lithium battery onto multiple mobile chassis. Through the rotary module, each waste lithium battery placed in the discharge unit on the mobile chassis can be discharged simultaneously during the horizontal circular rotation, thereby shortening the batch discharge time. During operation, the waste lithium batteries can be clamped at a fixed station. After a station is filled, a discharge unit is automatically moved, and the entire equipment can be loaded at that station, which is easy to operate. The discharge process uses a discharge clamp connected to a heating wire suspended in cold water in a heat sink, so that the electrical energy during discharge is converted into heat energy, which is absorbed by the cold water and evaporated to dissipate heat. The entire process does not generate wastewater or exhaust gas, and is safe, efficient, environmentally friendly, and pollution-free. After the discharge is completed, the clamping and unloading process can be carried out at the same station, saving time and space.

[0014] The utility model has good load-bearing capacity and high discharge efficiency, and is particularly suitable for discharging various waste square lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a top view of the structure of an embodiment of the utility model;

[0017] Figure 3 This is a side view of the structure of an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the combination of the rack assembly and the heat sink structure of the embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the mobile assembly of an embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the discharge unit structure of an embodiment of the utility model;

[0021] Figure 7 This is a schematic diagram of the discharge of a single battery in an embodiment of the present utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] It should be noted that when an element is referred to as being “connected,” “provided with,” or “disposed on” another element, it can be directly on the other element or there may be an intermediate element at the same time.

[0024] It should also be noted that the directional terms such as "one end", "the other end", "front end", "rear end", "left and right", "longitudinal", and "lateral" in the embodiments of the present invention are only relative concepts or are based on the normal use status of the product, or are based on the positions shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be considered as restrictive.

[0025] See also Figure 1-5 The embodiment of the utility model provides a waste lithium battery discharge device for discharging and processing disassembled and recycled rectangular or square aluminum shell waste lithium batteries 5, including a frame component 1, a moving component 2, a heat dissipation water tank 4 and a discharge component 3.

[0026] See also Figure 4In a specific embodiment provided by the present invention, a rack assembly 1 includes a rack 101, which is used to bear the weight of the entire device. The rack 101 is constructed of a rectangular parallelepiped structure using multiple aluminum profiles. A heat sink bracket 102 is provided along the center of the top length direction of the rack 101 to support the heat sink 4. A control box 104 and a button box 103 are provided on the outer side of the rack 101 to control the coordinated movement of various components.

[0027] See also Figure 1-3 The mobile assembly 2 includes multiple mobile chassis 205 loaded with waste lithium batteries and a rotary module 200. The rotary module 200 is fixed to the frame 101 through a frame 208, and is used to drive each mobile chassis 205 to perform horizontal circular rotation on the frame 101, so that the waste lithium batteries 5 placed on the mobile chassis 205 are discharged during the horizontal circular rotation.

[0028] See also Figure 3 and Figure 5 The rotary module 200 may specifically include a motor 201, a reducer 202, a driving sprocket 203, a driven sprocket 209 and a chain 204. The motor 201 and the reducer 202 are fixed at one end of the frame 101, the reducer 202 is connected to the output shaft of the motor 201, and the output shaft of the reducer 202 is connected to the driving sprocket 203. The driven sprocket 209 is spaced apart from the driving sprocket 203 and is located at the other end of the frame 101. The central axes of the driving sprocket 203 and the driven sprocket 209 are perpendicular. The chain 204 is sleeved on the driving sprocket 203 and the driven sprocket 209, and moves in coordination with the driving sprocket 203 and the driven sprocket 209. On the chain 204, a plurality of evenly distributed mobile chassis 205 are installed at intervals. The used lithium batteries 5 to be discharged are loaded on the mobile chassis 205. When the motor 201 is energized, the motor 201 drives the reducer 202 to rotate, and the reducer 202 drives the driving sprocket 203 and the driven sprocket 209 to rotate simultaneously, driving the chain 204 to move. The mobile chassis 205 drives each used lithium battery 5 to make a horizontal circular rotation on the frame 101 driven by the chain 204.

[0029] Furthermore, guide wheels 207 are provided below the mobile chassis 205 to facilitate the movement of the mobile chassis 205. The guide wheels 207 are pressed in pairs on the guide rails 206, so that the mobile chassis 205 can bear a larger weight. The guide rails 206 are fixed on the frame 208, and the frame 208 is fixed on the rack 101.

[0030] See also Figure 1 、 Figure 2 and Figure 4The heat dissipation water tank 4 is used to store tap water for heat dissipation. It is fixed at the center position of the length direction of the top of the frame 101 through the heat dissipation water tank bracket 102 and is located at the inner end of the chain 204 in the rotary module 200. The heat dissipation water tank 4 has a tank bottom and two tank walls extending upward along the two ends of the tank bottom. It is formed by two parallel and spaced long strip grooves and two semicircular grooves connected together. The two semicircular grooves are arranged in opposite directions to each other, and the two ends are connected to the two ends of the two long strip grooves, so that the shape of the heat dissipation water tank 4 is adapted to the circular movement trajectory of the rotary module 200.

[0031] See also Figure 1-3 , 6-7, the discharge assembly 3 is placed on the mobile chassis 205, and each mobile chassis 205 is correspondingly provided with a discharge unit 300, and each used lithium battery 5 to be discharged is placed on the discharge unit 300, so that the used lithium battery 5 to be discharged can be discharged while moving horizontally in a circular motion with the mobile chassis 205, and the discharge process can be completed during movement.

[0032] See also Figure 3 、 Figure 6 and Figure 7 The discharge unit 300 includes a heating wire 306 and at least one discharge clip 304 arranged in a pair. One end of the two discharge clips 304 is used to clamp the positive electrode tab and the negative electrode tab of the used lithium battery 5 to be discharged. The other ends of the two discharge clips 304 are respectively connected to two cables 308. The other ends of the two cables 308 are respectively connected to the two ends of a heating wire 306. The heating wire 306 is immersed in the cold water in the heat dissipation tank 4.

[0033] See also Figure 6The discharge unit 300 also includes a battery mounting member 301 and a heating wire bracket 302. The battery mounting member 301 includes a carrier plate 3011 and a battery frame 3012. The carrier plate 3011 is fixed to the mobile chassis 205, and the battery frame 3012 is fixed to the carrier plate 3011. The carrier plate 3011 is used to place the used lithium batteries 5 to be discharged. In this way, the mobile chassis 205 drives the carrier plate 3011 to move, and at the same time, it can also drive the used lithium batteries 5 to be discharged in the battery frame 3012 to move. The heating wire bracket 302 is fixed to a support base 303. The support base 303 is composed of an upright profile and is fixed to the carrier plate 3011 via corner fixings 305, so that the heating wire bracket 302 is fixed to the battery mounting member 301. The heating wire bracket 302 comprises a hanger 3021 and an arc-shaped fixing bracket 3022. One end of the hanger 3021 is fixed to the support base 303, securing the hanger 3021 to the battery mounting member 301 via the support base 303. The other end of the hanger 3021 extends in a cantilevered manner toward the heat sink 4 and connects to the arc-shaped fixing bracket 3022. The arc center of the arc-shaped fixing bracket 3022 coincides with the arc centers at the ends of the heat sink 4, and its arc dimensions match the arc dimensions of the heat sink 4, ensuring that the arc-shaped fixing bracket 3022 does not interfere with the heat sink 4 during movement. The heating wire 306 is spirally wound, forming a spring-like structure. This allows the length of the heating wire 306 to be increased within a limited space, improving the heat dissipation effect. The heating wire 306 is fixed to the arc-shaped fixing bracket 3022 in a suspended position. An insulating sheet 307 is provided between the heating wire 306 and the arc-shaped fixing bracket 3022. Two cables 308 are connected to the ends of the heating wire 306. The two cables 308 can be bundled on the support base 303 and then connected to the discharge clamp 304 (not shown). In this way, the heating wire 306 is fixed to the heating wire bracket 302 in a suspended position. Through the connection of the cables 308, it can be immersed in the cold water in the heat dissipation tank 4 without contacting the bottom or inner walls of the heat dissipation tank 4. When the used lithium battery 5 to be discharged rotates horizontally, the heat generated during discharge is dissipated through the heating wire 306. The heat is then dissipated by the cold water in the heat dissipation tank 4, thus avoiding the safety hazards caused by overheating.

[0034] Working process of the embodiment of the present utility model.

[0035] (1) The operator stands near the button box 103 and places the used lithium battery 5 (used square aluminum box lithium battery) to be discharged into the battery frame 3012.

[0036] (2) The pair of discharge clips 304 are clamped on the positive electrode tab and the negative electrode tab of the used lithium battery 5 to be discharged (they can be clamped separately without distinguishing between positive and negative electrodes).

[0037] (3) Press the start button in the button box 103, the motor 201 starts, the active sprocket 203 drives the chain 204 to move, the mobile chassis 205 moves with the chain 204, and the battery frame 3012 placed on the mobile chassis 205 moves at the same time. When the discharge unit 300 automatically moves a displacement, the motor 201 stops, and the next unloaded battery frame 3012 will move in front of the operator. At this time, repeat steps (1) and (2) until all battery frames 3012 are filled with used lithium batteries 5 to be discharged.

[0038] (4) When the entire device is filled with waste lithium batteries 5 to be discharged, the waste lithium batteries 5 in the first battery frame 3012 have been moved along with the mobile chassis 205 for a discharge stroke under the drive of the rotary module 200. At this time, the voltage of the waste lithium batteries 5 in the battery frame 3012 can be detected to determine whether the discharge has been completed. If it is higher than the discharge cut-off voltage, the waste lithium batteries 5 in each battery frame 3012 can be left to stand for a period of time after moving along the discharge stroke to ensure that each waste lithium battery 5 is fully discharged.

[0039] After the discharge is completed, the discharge clip 304 on the used lithium battery 5 in the current battery frame 3012 is loosened and removed, and the used lithium battery 5 in the battery frame 3012 is taken out at the same time. Then, the start button in the button box 103 is pressed again, the motor 201 is started, and when the discharge unit 300 automatically moves a displacement, the motor 201 stops, and the action of taking out the used lithium battery 5 in the battery frame 3012 is repeated, and a large-scale discharge is completed.

[0040] The above process is a manual operation process. A manipulator and loading and unloading devices can also be set above the frame to achieve the above discharge process.

[0041] The above embodiments of the present invention are only part of the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made by those skilled in the art without departing from the essence of the present invention are within the scope of protection of the present invention.

Claims

1. A rotary waste lithium battery discharge device, characterized in that: The invention comprises a frame assembly, a mobile assembly, a discharge assembly and a heat dissipation water tank. The frame assembly comprises a frame, which is constructed of a rectangular parallelepiped frame structure using multiple profiles. The mobile assembly comprises multiple mobile chassis loaded with waste lithium batteries and a rotary module for driving each of the mobile chassis to perform horizontal circular movement, wherein the rotary module is fixed to the frame. The heat dissipation water tank is used to store cold water for heat dissipation and is fixed at the center of the frame and located at the inner end of the rotary module. The heat dissipation water tank is formed by connecting two parallel and spaced long strip grooves and two oppositely arranged semicircular grooves. The discharge assembly comprises a discharge unit correspondingly arranged on the mobile chassis, and the waste lithium batteries to be discharged are placed on the discharge unit so that the waste lithium batteries to be discharged are discharged while performing horizontal circular movement with the mobile chassis. The discharge unit comprises a heating wire and at least one discharge clamp arranged in a pair and used to clamp the positive electrode tab and the negative electrode tab of the waste lithium battery to be discharged, respectively. The discharge clamp is connected to the heating wire through a cable, and the heating wire is immersed in cold water in the heat dissipation water tank.

2. The rotary waste lithium battery discharge device according to claim 1, characterized in that: The rotary module includes a motor, a reducer connected to the motor output shaft, a driving sprocket connected to the reducer output shaft, a driven sprocket spaced apart from the driving sprocket, and a chain sleeved on the driving sprocket and the driven sprocket and moving in coordination with the driving sprocket and the driven sprocket. A plurality of mobile chassis are evenly spaced and mounted on the chain. The chain drives the mobile chassis to move horizontally in a circular motion under the drive of the driving sprocket.

3. The rotary waste lithium battery discharge device according to claim 2, characterized in that: Guide wheels are provided at the bottom of the mobile chassis. The guide wheels are pressed on guide rails in pairs. The guide rails are fixed on the frame.

4. The rotary waste lithium battery discharge device according to any one of claims 1 to 3, characterized in that: The discharge unit also includes a battery mounting component and a heating wire bracket. The battery mounting component includes a carrier plate and a battery frame. The carrier plate is fixed on the mobile chassis, and the battery frame is fixed on the carrier plate and is used to place used lithium batteries to be discharged; the heating wire is installed on the heating wire bracket, and the heating wire bracket includes a suspension bracket and an arc-shaped fixing bracket. One end of the suspension bracket is fixed on the battery mounting component, and the other end extends in a cantilevered manner toward the heat sink and is connected to the arc-shaped fixing bracket. Multiple heating wires are hung on the arc-shaped fixing bracket and immersed in the cold water in the heat sink. When the discharge unit makes a rotary circular motion, the arc center of the arc fixing bracket coincides with the arc centers at both ends of the heat sink.

5. The rotary waste lithium battery discharge device according to claim 4, characterized in that: The heating wire is spirally wound.

6. The rotary waste lithium battery discharge device according to claim 5, characterized in that: An insulating sheet is provided between the heating wire and the arc-shaped fixing frame.

7. The rotary waste lithium battery discharge device according to any one of claims 1 to 3, characterized in that: A control box and a button box are provided on the outer side of the frame.

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