Battery puncture discharge equipment

Abstract

The utility model provides battery puncture discharge equipment, which comprises a protection liquid tank filled with protection liquid; the first conveying mechanism is arranged in the protection liquid tank, and at least part of the first conveying mechanism is immersed into the protection liquid; the puncturing mechanism is arranged at the position, immersed in the protection liquid, of the first conveying mechanism and used for puncturing the battery on the first conveying mechanism; and the second conveying mechanism is located outside the protection liquid of the protection liquid box, the inlet end of the second conveying mechanism is connected with the outlet end of the first conveying mechanism, and the second conveying mechanism is provided with a hollow structure used for draining dry batteries. According to the battery puncture discharge equipment provided by the invention, streamlined treatment can be realized under the condition of keeping submerged puncture, so that the overall efficiency of battery discharge is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery recycling technology, and more specifically, to a battery puncture discharge device. Background Art

[0002] At present, the retired batteries recycled on the market still contain a certain amount of electricity. Before subsequent processing, the batteries must be discharged for pretreatment. The current battery discharge methods include resistance discharge, salt water discharge, underwater puncture discharge, etc. Underwater puncture discharge is safer, but it can only discharge a single battery, resulting in a low overall efficiency of battery discharge. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a battery puncture discharge device to solve the technical problem of low overall efficiency of battery discharge in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a battery puncture discharge device, the battery puncture discharge device comprises:

[0005] A protective liquid tank, containing protective liquid;

[0006] A first conveying mechanism is disposed in the protection liquid tank, and the first conveying mechanism is at least partially immersed in the protection liquid;

[0007] The puncture mechanism is arranged at a position on the first conveying mechanism immersed in the protective liquid, and is used to puncture the battery on the first conveying mechanism;

[0008] The second conveying mechanism is located outside the protective liquid of the protective liquid tank. The inlet end of the second conveying mechanism is connected to the outlet end of the first conveying mechanism. The second conveying mechanism is provided with a hollow structure for draining the battery.

[0009] Optionally, the battery puncture discharge device further comprises a liquid receiving box for receiving liquid leaked from the battery, and the liquid receiving box is provided with an opening, and the opening is located below the hollow structure.

[0010] Optionally, the liquid receiving box is communicated with the protection liquid box, the protection liquid box is provided with a liquid inlet for replenishing the protection liquid, and the liquid receiving box is provided with a liquid outlet for discharging the liquid.

[0011] Optionally, a first gas collecting hood covering the first conveying mechanism is provided above the first conveying mechanism, and the first gas collecting hood is provided with a first gas extraction interface for extracting the gas collected in the first gas collecting hood;

[0012] A second gas collecting hood covering the second conveying mechanism is arranged above the second conveying mechanism, and the second gas collecting hood is provided with a second gas extraction interface for extracting the gas collected in the second gas collecting hood.

[0013] Optionally, the puncture mechanism includes a rotatably arranged puncture roller, the puncture roller includes a roller body and a puncture needle, the puncture needle is arranged on the outer peripheral surface of the roller body, the axis of the puncture roller is perpendicular to the conveying direction of the first conveying mechanism, and a puncture channel for puncturing the battery is formed between the puncture roller and the first conveying mechanism.

[0014] Optionally, there are multiple puncture rollers, and the multiple puncture rollers are arranged at intervals along the conveying direction of the first conveying mechanism.

[0015] Optionally, a threaded fixing hole is arranged on the outer peripheral surface of the roller body, and the needle is threadably connected to the threaded fixing hole.

[0016] Optionally, a protrusion is provided on the outer peripheral surface of the roller body, and a threaded fixing hole is provided on the protrusion; the thorn needle includes a sharp thorn section, a bayonet section and a threaded section connected in sequence, the sharp thorn section is used to puncture the battery, the bayonet section is used to clamp the thorn needle installation tool, and the threaded section is threadedly connected to the threaded fixing hole.

[0017] Optionally, the battery puncture discharge device is provided with a position adjustment mechanism, which is connected to the puncture roller and is used to adjust the distance between the puncture roller and the first conveying mechanism to adjust the height of the puncture channel.

[0018] Optionally, the battery puncture discharge device further includes a battery recovery box, and the battery recovery box is arranged below the output end of the second conveying mechanism.

[0019] The battery puncture discharge device provided by the present application has the beneficial effect that, compared with the prior art, the battery puncture discharge device of the present application arranges a first conveying mechanism in the protective liquid tank, the first conveying mechanism is at least partially immersed in the protective liquid, and the puncture mechanism is arranged at a position immersed in the protective liquid on the conveying path of the first conveying mechanism, so as to puncture the battery on the first conveying mechanism in the protective liquid, and then utilizes the hollow structure of the second conveying mechanism to drain the punctured battery, so as to achieve flow-through processing while maintaining the puncture under the liquid, thereby improving the overall efficiency of battery discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a three-dimensional schematic diagram of a battery puncture discharge device in an embodiment of the present application;

[0022] Figure 2 It is a front view schematic diagram of a battery puncture discharge device in an embodiment of the present application;

[0023] Figure 3 It is a schematic diagram of the back side of the battery puncture discharge device in the embodiment of the present application;

[0024] Figure 4 is an internal schematic diagram of the puncture device in an embodiment of the present application;

[0025] Figure 5 is an internal schematic diagram of a draining device in an embodiment of the present application;

[0026] Figure 6 is a schematic diagram of a roller body in an embodiment of the present application;

[0027] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0028] Figure 8 Schematic diagram of the needle in the embodiment of the present application.

[0029] Among them, the figure marks in the figure are: puncture device 1, protective liquid tank 11, liquid inlet 111, first conveying mechanism 12, puncture mechanism 13, roller body 131, puncture needle 132, spike section 1321, bayonet section 1322, threaded section 1323, protrusion 133, first air collecting hood 14, first air extraction interface 15, draining device 2, liquid receiving box 21, liquid outlet 211, second conveying mechanism 22, second air collecting hood 23, second air extraction interface 24, battery recovery box 3, battery 4. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In recent years, with the rapid rise of industries such as new energy vehicles, a large number of waste power batteries will be generated in the near future. If they are not properly handled, they will cause environmental pollution and a large amount of resource waste. The recycling of waste batteries can greatly reduce the metallurgical cost starting from the ore. The recycled retired batteries still contain a certain amount of electricity. Considering the active nature of the battery, the battery needs to be discharged before subsequent treatment. Traditional battery discharge methods include resistance discharge and salt water discharge. Resistance discharge uses an external load discharge method, which is effective for battery packs and modules, but has low compatibility problems for single cells. The salt water discharge method puts the single cells in batches into a salt solution and completes the discharge by immersion, which can be used for batch discharge of single cells. However, due to the low efficiency of salt water discharge, the discharge time of three to five days is difficult to adapt to batch industrial production, and the salt water will cause greater pollution, which will increase the production cost in the future. In order to solve the problem of low discharge efficiency of single cells, short-circuit discharge of single cells has been explored, and puncture discharge technology has been proposed. Puncture discharge is to puncture the battery through a needle 132 to cause an internal short circuit, thereby achieving battery discharge. Puncture discharge can solve the problem that resistance discharge is not applicable to single cells and salt water discharge efficiency is low. Considering the active nature of the battery, the existing conventional puncture discharge equipment on the market needs to reduce the power to a safe voltage before discharging. In order to ensure safe high voltage, a submerged puncture discharge method has been developed. The battery is punctured and discharged in a protective liquid. Through the protection of the protective liquid, the safety is improved and the battery is prevented from continuously deflagration during puncture. However, the current operation method of submerged puncture discharge is usually to place the battery in a protective liquid tank 11, then perform puncture discharge, remove the battery after puncture discharge, re-insert the next battery and perform puncture again, so the overall production efficiency is relatively low.

[0035] Based on this, the present application improves the current battery puncture discharge equipment.

[0036] See also Figures 1 to 3 The battery puncture discharge device provided in the embodiment of the present application is now described. The battery puncture discharge device includes:

[0037] A protection liquid tank 11, containing protection liquid;

[0038] The first conveying mechanism 12 is disposed in the protection liquid tank 11, and the first conveying mechanism 12 is at least partially immersed in the protection liquid;

[0039] The puncture mechanism 13 is arranged at a position on the first conveying mechanism 12 that is immersed in the protection liquid, and is used to puncture the battery 4 on the first conveying mechanism 12 in the protection liquid;

[0040] The second conveying mechanism 22 is located outside the protection liquid in the protection liquid tank 11. The inlet end of the second conveying mechanism 22 is connected to the outlet end of the first conveying mechanism 12. The second conveying mechanism 22 is provided with a hollow structure for draining batteries.

[0041] Among them, the protective liquid tank 11, the first conveying mechanism 12 and the puncture mechanism 13 constitute the puncture device 1, which is mainly used for underwater puncture of the battery 4. The protective liquid tank 11 is mainly used to hold the protective liquid. The protective liquid can usually be water, or oil, flame retardant liquid and other liquids. The height of the added liquid needs to submerge the punctured battery 4, which plays the role of air isolation and fire extinguishing and cooling during the puncture process of the battery 4, and prevents the high-voltage battery from catching fire and deflagration during the puncture process. Among them, using water as a coolant is not only cheap, but also water enters the puncture hole to accelerate the discharge process, which improves safety to a certain extent and accelerates the discharge speed. The first conveying mechanism 12 is used for conveying the battery 4 in the protective liquid tank 11. The first conveying mechanism 12 can be a belt conveyor, a roller conveyor and other equipment. The part where the first conveying mechanism 12 is in direct contact with the battery 4 is preferably made of insulating material to prevent the battery 4 from contacting the metal in the liquid and causing a short circuit and causing danger. The puncture mechanism 13 is arranged on the conveying path of the first conveying mechanism 12. When the battery 4 is conveyed to the position where the puncture mechanism 13 is located, the puncture mechanism 13 can puncture the battery 4 to cause an internal short circuit of the battery 4, thereby achieving discharge. The puncture mechanism 13 can adopt a downward pressure puncture mechanism 13, a roller puncture mechanism 13, etc.

[0042] The second conveying mechanism 22 with a hollow structure is provided as the draining device 2, which is mainly used to drain the battery 4 after the underwater puncture, and mainly includes the second conveying mechanism 22, and the second conveying mechanism 22 is provided with a hollow structure. When the battery 4 is conveyed on the second conveying mechanism 22, the purpose of draining the battery 4 can be achieved. The second conveying mechanism 22 can also adopt equipment such as a belt conveyor, a roller conveyor, and a mesh belt conveyor. The roller conveyor is composed of a plurality of rollers arranged, and a hollow structure is formed between two adjacent rollers. The belt of the belt conveyor can be provided with additional hollow holes, and the mesh belt conveyor itself has hollow holes, and these hollow holes can be used as hollow structures.

[0043] When this embodiment is used, first inject a sufficient amount of protective liquid into the protective liquid tank 11 so that the height of the protective liquid is sufficient to submerge the battery 4 that needs to be punctured, and then put the battery 4 into the first conveying mechanism 12 of the protective liquid tank 11. The battery 4 is conveyed to the puncture mechanism 13 through the first conveying device. Under the protection of the protective liquid, the puncture mechanism 13 punctures the battery 4 to short-circuit its internal part to achieve discharge. The punctured battery 4 is conveyed to its outlet by the first conveying mechanism 12, and then enters the inlet end of the second conveying mechanism 22 of the draining device 2, and is conveyed by the second conveying mechanism 22. Since the second conveying mechanism 22 is provided with a hollow structure for draining the battery 4, the punctured battery 4 can be drained during the conveying process of the second conveying mechanism 22. The drained battery 4 can be collected at the outlet end of the second conveying mechanism 22 to carry out the next step of battery 4 recovery. The second conveying mechanism 22 can be equipped with accessories such as variable frequency motors that can control the conveying speed, which are used to control the draining time and discharge time of the battery 4 on the second conveying mechanism 22, and control the residence time of the battery cells to ensure that the battery cell power is below 1V when discharging, meeting the safety standards for subsequent processing.

[0044] This embodiment is usually used for puncturing battery cells, and is compatible with the puncture of battery cells such as square aluminum shells, soft packs, and cylindrical single cells, but can also be used for puncturing battery packs and battery packs. The battery 4 for puncture and discharge can be a variety of types such as lithium batteries and sodium batteries. The battery puncture and discharge equipment of this embodiment can realize the continuous operation of battery puncture and draining, which can greatly improve the production efficiency of battery puncture, and can complete the discharge treatment of batteries in batches, greatly reducing the safety hazards in subsequent transportation, warehousing and comprehensive treatment processes, and providing safety guarantees for subsequent powdering and other processes. The puncture mechanism 13, the first conveying mechanism 12, and the second conveying mechanism 22 can all be automatically controlled by components such as PLC, and the control operations of the puncture and draining parts can be completed by a single person, saving labor costs and further improving production efficiency. The battery puncture and discharge equipment of this embodiment can speed up the three to five days required to discharge salt water to thirty to fifty minutes, greatly speeding up the production rhythm and avoiding the impact of subsequent production due to limitations in the discharge stage.

[0045] See also Figure 1 In one embodiment of the present application, the battery puncture discharge device also includes a liquid receiving box 21 for receiving the liquid leaked from the battery 4. The upper portion of the liquid receiving box 21 is provided with an opening, and the opening is located below the hollow structure. During the draining process, the protective liquid attached to the battery 4 and the electrolyte of the battery 4 itself will drip downward through the hollow structure of the second conveying mechanism 22. Therefore, the present embodiment is provided with a liquid receiving box 21, and the opening of the liquid receiving box 21 is located below the hollow structure, so as to facilitate the setting of an opening to receive the liquid leaked from the battery 4 dripping from the hollow structure. The second conveying mechanism 22 can be set to a horizontal structure or a slope structure, wherein if Figure 5As shown, the slope structure is more conducive to arranging the liquid receiving box 21 therebelow.

[0046] Considering that the liquid leaked from the battery 4 may flow along the second conveying mechanism 22 and drip, the size of the liquid receiving box 21 is preferably comparable to that of the second conveying mechanism 22, and its opening can cover the entire projected area of ​​the second conveying mechanism 22 to prevent the liquid leaked from the battery 4 from dripping outside the liquid receiving box 21. The liquid leaked from the battery 4 received by the liquid receiving box 21 can be subsequently processed for metal recovery, separation of harmful substances, etc. to avoid pollution to the environment.

[0047] See also Figure 1 to Figure 2 In one embodiment of the present application, the liquid receiving tank 21 is connected to the protection liquid tank 11, and the protection liquid tank 11 is provided with a liquid inlet 111 for replenishing the protection liquid, and the liquid receiving tank 21 is provided with a liquid outlet 211 for discharging the liquid. The liquid receiving tank 21 and the protection liquid tank 11 can be connected through a pipeline or directly adopt an integrated box body. The liquid inlet 111 can be connected to a liquid inlet device to replenish the protection liquid in the liquid receiving tank 21, and the liquid outlet 211 can be connected to a liquid outlet device to discharge the liquid in the liquid receiving tank 21 and the protection liquid tank 11.

[0048] Because the electrolyte will flow out into the protective liquid tank 11 after the battery 4 is punctured and mix with the protective liquid tank 11, in order to keep the protective liquid from playing its role well, the protective liquid in the protective liquid tank 11 needs to be replaced in time. Because the actual composition of the liquid in the protective liquid tank 11 is the same as the liquid received by the liquid receiving tank 21, therefore, the liquid receiving tank 21 of this embodiment is connected to the protective liquid tank 11, and the liquid receiving tank 21 is provided with a liquid outlet 211, and the liquids in the liquid receiving tank 21 and the protective liquid tank 11 can be discharged through the liquid outlet 211 for unified treatment, thereby reducing the arrangement of pipelines. In addition, the liquid inlet 111 is provided in the protective liquid tank 11, and the newly added protective liquid can first flow into the protective liquid tank 11 to replace and replenish the liquid in the protective liquid tank 11, so that the protective liquid in the protective liquid tank 11 can better play its cooling and explosion-proof role.

[0049] See also Figures 1 to 3 In one embodiment of the present application, a first gas collecting hood 14 is arranged above the first conveying mechanism 12, and the first gas collecting hood 14 is provided with a first gas extraction interface 15 for extracting the gas collected in the first gas collecting hood 14; a second gas collecting hood 23 is arranged above the second conveying mechanism 22, and the second gas collecting hood 23 is provided with a second gas extraction interface 24 for extracting the gas collected in the second gas collecting hood 23.

[0050] After the battery 4 is punctured underwater, gases such as hydrogen, water vapor, and electrolyte vapor will be generated. The outflow of these gases will not only pollute the environment but also may cause danger. In this embodiment, a first gas collecting hood 14 covering the first conveying mechanism 12 is provided above the first conveying mechanism 12, which can collect the gas generated during the puncture process. The first air extraction interface 15 can be connected to the air extraction device to generate negative pressure and extract the gas collected in the first gas collecting hood 14. A second gas collecting hood 23 covering the second conveying mechanism 22 is provided above the second conveying mechanism 22 to collect the gas generated during the puncture process. The second air extraction interface 24 can also be connected to the air extraction device to generate negative pressure and extract the gas collected in the second gas collecting hood 23. The specific shape of the first gas collecting hood 14 can be determined according to the first conveying mechanism 12 or the protective liquid tank 11 below, and it is best to cover the first conveying mechanism 12 and the protective liquid tank 11 below; the specific shape of the second gas collecting hood 23 is also determined according to the second conveying mechanism 22 below, and it is best to cover the second conveying mechanism 22 below. The number of the first air extraction interface 15 and the second air extraction interface 24 can be determined according to the specific situation. For example, if the first air collection hood 14 covers a small area and collects less gas, only one first air extraction interface 15 can be set. If the first air collection hood 14 covers a large area and generates more gas, multiple first air extraction interfaces 15 can be set. The same is true for the second air extraction interface 24 and the second air collection hood 23. Figure 1 In the embodiment, the first air collecting hood 14 is provided with two first air extraction interfaces 15 , and the second air collecting hood 23 is also provided with two second air extraction interfaces 24 .

[0051] The first exhaust port 15 and the second exhaust port 24 can be connected to the same exhaust device for exhaust, or can be connected to different exhaust devices. The gas extracted from the first exhaust port 15 and the second exhaust port 24 can be transported to the corresponding exhaust treatment equipment for exhaust treatment, avoiding the danger and environmental pollution caused by direct discharge.

[0052] In one embodiment of the present application, the puncture mechanism 13 includes a rotatably arranged puncture roller, the puncture roller includes a roller body 131 and a puncture needle 132, the puncture needle 132 is arranged on the outer peripheral surface of the roller body 131, the axis of the puncture roller is perpendicular to the conveying direction of the first conveying mechanism 12, and a puncture channel for puncturing the battery is formed between the puncture roller and the first conveying mechanism 12.

[0053] The puncture mechanism 13 of this embodiment adopts a puncture roller, which is rotatably arranged. Specifically, the puncture roller can be installed on the protective liquid tank 11, or can be rotatably installed on the bracket of the first conveying mechanism 12, or an independent bracket can be set to realize the rotatable installation. The puncture roller can be provided with a power mechanism to make it rotate, or it can be provided without a power mechanism, and the battery 4 is conveyed by the first conveying mechanism 12 to drive it to rotate. The needles 132 are arranged on the outer peripheral surface of the roller body 131, and the number of needles 132 is usually multiple. Usually, the needles 132 are distributed all over the outer periphery of the roller body 131. The distribution of the needles 132 is preferably able to cover the first conveying mechanism 12 in the width direction, so that the batteries 4 conveyed by the first conveying mechanism 12 can be punctured by the needles 132, without considering the size and direction of the battery 4, as long as it does not exceed the first conveying mechanism 12. A puncture channel is formed between the puncture roller and the first conveying mechanism 12 for the battery 4 to pass through and be punctured. At the same time, the axis of the puncture roller is perpendicular to the conveying direction of the first conveying mechanism 12, which can ensure that the battery 4 passing through the puncture channel is not easily displaced obliquely and falls from the first conveying mechanism 12.

[0054] Compared with the general downward pressing puncture mechanism 13, the puncture roller of this embodiment is more conducive to cooperating with the first conveying mechanism 12 to achieve continuous puncture of the battery 4, and has higher puncture efficiency and stability.

[0055] See also Figure 4 In one embodiment of the present application, there are multiple puncture rollers, and the multiple puncture rollers are arranged at intervals along the conveying direction of the first conveying mechanism 12. It was found through experiments that when a single puncture roller was used for experiments, the puncture success rate for square aluminum shells and soft-pack batteries was 100%, and the puncture success rate for cylindrical batteries was 80%. Therefore, in this embodiment, multiple puncture rollers are set, and the multiple puncture rollers are arranged along the conveying direction of the first conveying mechanism 12. The battery 4 that was not successfully punctured by the previous puncture roller can be punctured again by the next puncture roller, thereby improving the success rate of puncture and meeting production needs. The specific number of puncture rollers is determined according to demand. Usually, 2 or 3 puncture rollers are set.

[0056] See also Figure 8 In one embodiment of the present application, a threaded fixing hole is provided on the outer circumferential surface of the roller body 131, and the puncture needle 132 is threadedly connected to the threaded fixing hole. The puncture needle 132 on the puncture roller will wear out after puncturing the battery 4 multiple times, and needs to be replaced or repaired. In this embodiment, the puncture needle 132 is connected to the threaded fixing hole on the roller body 131 through a thread. When a puncture needle 132 is worn, it only needs to be unscrewed and a new puncture needle 132 is screwed in. Regardless of disassembling the entire puncture roller for repair, time and labor costs can be greatly reduced to avoid affecting production.

[0057] See also Figures 6 to 8 In one embodiment of the present application, a protrusion 133 is provided on the outer peripheral surface of the roller body 131, and a threaded fixing hole is provided on the protrusion 133. The thorn needle 132 includes a spike section 1321, a bayonet section 1322 and a threaded section 1323 connected in sequence. The spike section 1321 is used to puncture the battery 4, the bayonet section 1322 is used to clamp the thorn needle installation tool, and the threaded section 1323 is threadedly connected to the threaded fixing hole.

[0058] The protrusion 133 may be cylindrical, square, truncated, or other structures. Figure 7 As shown, the truncated cone-shaped protrusion 133 has a high structural strength. The spike section 1321 of the puncture needle 132 has a spike shape, which can achieve puncture of the battery 4. The threaded section 1323 is provided with an external thread, which can be threadedly connected with the threaded fixing hole, so that the puncture needle 132 is connected to the roller body 131. The bayonet section 1322 is used to clamp the puncture needle installation tool, which can be specifically hexagonal, square, flat and other structures. The puncture needle installation tool can be a commonly used wrench, pliers and other tools. The setting of the bayonet section 1322 can better rotate the puncture needle 132.

[0059] In this embodiment, a protrusion 133 is provided on the outer peripheral surface of the roller body 131, which can make the position of the bayonet section 1322 of the needle 132 clamped by the needle installation tool form a certain distance with the outer peripheral surface of the roller body 131, which is beneficial to the operation of the needle installation tool. At the same time, the bayonet section 1322 can cooperate with the needle installation tool to improve the convenience of disassembly and installation of the needle 132, thereby improving the replacement efficiency of the needle 132.

[0060] In one embodiment of the present application, the battery puncture discharge device is provided with a position adjustment mechanism, which is connected to the puncture roller and is used to adjust the distance between the puncture roller and the first conveying mechanism to adjust the height of the puncture channel. The height of the puncture channel needs to be compatible with the thickness of the battery 4 in order to successfully achieve the puncture of the battery 4. If the height of the puncture channel is too high, the puncture effect cannot be achieved. If the height of the puncture channel is too low, the battery 4 will be stuck and unable to pass. In this embodiment, the puncture roller is connected to the position adjustment mechanism, which can be a component of a hydraulic cylinder, an electric cylinder, or a threaded cylinder, which is connected to the puncture roller and can adjust the position of the puncture roller, thereby adjusting the distance between the puncture roller and the first conveying mechanism 12, thereby adjusting the height of the puncture channel.

[0061] According to the solution of this embodiment, before puncturing the battery 4, it is necessary to adjust the height of the puncture channel using the position adjustment mechanism according to the thickness of the battery 4 so that it matches the thickness of the battery 4, thereby achieving a good puncture effect and reducing the risk of the battery 4 being stuck.

[0062] See also Figure 1In one embodiment of the present application, the battery 4 puncture discharge device also includes a battery recovery box 3, and the battery recovery box 3 is arranged below the output end of the second conveying mechanism 22. The battery after puncture discharge and draining is transported out through the output end of the second conveying mechanism 22, and a battery recovery box 3 is arranged below the output end of the second conveying mechanism 22 to collect the discharged batteries. Rollers can be arranged at the bottom of the battery recovery box 3 to facilitate moving the collected batteries to the next process through the battery recovery box 3. In addition, a spare battery recovery box 3 can be provided, which can be replaced when one battery recovery box 3 is full, and used alternately.

[0063] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A battery puncture discharge device, characterized in that: The battery puncture discharge device comprises: A protective liquid tank, containing protective liquid; A first conveying mechanism is disposed in the protection liquid tank, wherein the first conveying mechanism is at least partially immersed in the protection liquid; A puncture mechanism, arranged at a position on the first conveying mechanism submerged in the protective liquid, for puncturing the battery on the first conveying mechanism in the protective liquid; The second conveying mechanism is located outside the protection liquid of the protection liquid tank, the inlet end of the second conveying mechanism is connected to the outlet end of the first conveying mechanism, and the second conveying mechanism is provided with a hollow structure for draining the battery.

2. The battery puncture discharge device according to claim 1, characterized in that: The battery puncture discharge device further comprises a liquid receiving box for receiving liquid leaked from the battery, wherein the liquid receiving box is provided with an opening, and the opening is located below the hollow structure.

3. The battery puncture discharge device according to claim 2, characterized in that: The liquid receiving box is communicated with the protection liquid box. The protection liquid box is provided with a liquid inlet for replenishing the protection liquid, and the liquid receiving box is provided with a liquid outlet for discharging the liquid.

4. The battery puncture discharge device according to claim 1, characterized in that: A first gas collecting hood covering the first conveying mechanism is arranged above the first conveying mechanism, and the first gas collecting hood is provided with a first gas extraction interface for extracting the gas collected in the first gas collecting hood; A second gas collecting hood covering the second conveying mechanism is arranged above the second conveying mechanism, and the second gas collecting hood is provided with a second gas extraction interface for extracting the gas collected in the second gas collecting hood.

5. The battery puncture discharge device according to claim 1, characterized in that: The puncture mechanism includes a rotatably arranged puncture roller, the puncture roller includes a roller body and a puncture needle, the puncture needle is arranged on the outer peripheral surface of the roller body, the axis of the puncture roller is perpendicular to the conveying direction of the first conveying mechanism, and a puncture channel for puncturing the battery is formed between the puncture roller and the first conveying mechanism.

6. The battery puncture discharge device according to claim 5, characterized in that: There are multiple puncture rollers, and the multiple puncture rollers are arranged at intervals along the conveying direction of the first conveying mechanism.

7. The battery puncture discharge device according to claim 5, characterized in that: A threaded fixing hole is arranged on the outer peripheral surface of the roller body, and the needle is threadably connected to the threaded fixing hole.

8. The battery puncture discharge device according to claim 7, characterized in that: A protrusion is arranged on the outer peripheral surface of the roller body, and the threaded fixing hole is arranged on the protrusion; the puncture needle comprises a spike section, a bayonet section and a threaded section which are connected in sequence, the spike section is used to puncture the battery, the bayonet section is used to clamp the puncture needle installation tool, and the threaded section is threadedly connected to the threaded fixing hole.

9. The battery puncture discharge device according to claim 5, characterized in that: The battery puncture discharge device is provided with a position adjustment mechanism, which is connected to the puncture roller and is used to adjust the distance between the puncture roller and the first conveying mechanism to adjust the height of the puncture channel.

10. The battery puncture discharge device according to claim 1, characterized in that: The battery puncture discharge device further comprises a battery recovery box, and the battery recovery box is arranged below the output end of the second conveying mechanism.

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