Waste lithium battery discharge cabinet

Abstract

The utility model provides a waste lithium battery discharging cabinet which comprises a rack formed by four stand columns arranged in a rectangular mode, and a plurality of installation holes are vertically formed in the stand columns. The supporting plates are arranged among the four stand columns in a layered manner at intervals up and down; the battery supporting plates are arranged on the two stand columns in a layered manner at intervals up and down and extend outwards; the discharging box is arranged on the supporting plate and comprises a machine box, a discharging switch, a discharging connector socket, a PCB control panel and a heating wire, the discharging switch, the discharging connector socket, the PCB control panel and the heating wire are installed on the machine box and connected with one another, and a microcontroller and a data storage device are integrated on the PCB control panel; and one end of the discharge clamp is movably connected with the discharge joint socket, and the other end of the discharge clamp is provided with two chucks for clamping the positive electrode and the negative electrode of the lithium battery to be discharged on the battery supporting plate. The device is convenient to move and high in discharge efficiency, can be compatible with various lithium batteries with different sizes and specifications, brings convenience to timely, fast and dense discharge treatment of various different recycled waste lithium batteries, does not generate waste water and waste gas in the whole discharge process, and is safe and environment-friendly.

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 discharge cabinet for recycling lithium batteries. 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 produced and used. The service life of lithium batteries is generally 5-8 years. More and more large-scale power batteries and battery packs will face retirement and recycling.

[0003] Because lithium batteries contain valuable metals such as nickel, cobalt, manganese, and lithium, which have high recycling value, used lithium batteries are often referred to as "urban mines." When lithium batteries are removed from new energy vehicles and two-wheeled vehicles, they often contain a certain amount of charge. If removed while charged, they can easily catch fire, posing a safety hazard. Therefore, it is essential to promptly test and discharge the replaced power battery packs.

[0004] Currently, there are many types of lithium batteries and battery packs in the market. No single discharge device can be well compatible with lithium batteries and battery packs of various forms. Therefore, on-site and timely discharge treatment of various types of recycled waste lithium batteries is an urgent problem that needs to be solved. Summary of the Invention

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a waste lithium battery discharge cabinet which is mobile and flexible, has intensive discharge, good compatibility, and is safe and environmentally friendly.

[0006] The utility model provides a waste lithium battery discharge cabinet, comprising:

[0007] The frame comprises four columns arranged in a rectangular shape, each of the columns having a plurality of mounting holes arranged vertically;

[0008] At least one supporting plate, with both ends of each supporting plate being arranged in layers between the four upright posts through the mounting holes and the connecting pieces;

[0009] At least one battery support plate, used to support the waste lithium batteries to be discharged, with both ends of the battery supported on the two front columns in a layered manner through the mounting holes and the connectors, and extending outward, corresponding to the location of the support plate;

[0010] At least one discharge box is placed on the support plate. Each discharge box includes a chassis, a discharge switch mounted on the chassis, at least one discharge connector socket, at least one PCB control board, and at least one heating wire. The PCB control board is integrated with a microcontroller and a data storage device for collecting discharge current and discharge voltage data and controlling the discharge state. The discharge switch, the discharge connector socket, and the heating wire are all connected to the PCB control board.

[0011] A discharge clip, one end of which is provided with a discharge connector movably connected to the discharge connector socket on the discharge box, and is connected to the PCB control board through the discharge connector socket; the other end of which is provided with two clamps, respectively used to clamp the positive and negative electrodes of the lithium battery to be discharged correspondingly arranged on the battery support plate; the number of the discharge clips corresponds to the number of the discharge connector sockets and the heating wire.

[0012] Optionally, the discharge box further includes discharge indicator lights for displaying a discharge status, and the number of the discharge indicator lights corresponds to the number of the discharge connector sockets.

[0013] Optionally, the PCB control board and the heating wire are arranged in the inner cavity of the discharge box, the discharge switch, the discharge indicator light and the discharge connector socket are all arranged on the outside of the side wall of the discharge box, and the discharge indicator light and the discharge connector socket are arranged opposite to each other up and down.

[0014] Optionally, the PCB control board is fixed on a PCB mounting board via support columns, and the PCB mounting board is fixed to the bottom of the inner cavity of the chassis.

[0015] Optionally, both ends of the heating wire are fixed in the chassis via insulating columns, so that the heating wire is suspended in the inner cavity of the chassis.

[0016] Optionally, each heating wire is spirally wound and evenly distributed in the inner cavity of the chassis at an angle.

[0017] Optionally, the PCB control board is further provided with a temperature sensor for sensing the discharge temperature.

[0018] Optionally, the PCB control board is further provided with a buzzer for alarming when discharge is abnormal.

[0019] Optionally, a data interface connected to the PCB control board is further provided on the outer side of the side wall of the discharge box.

[0020] Optionally, the side wall of the chassis is provided with at least one cooling fan and a plurality of cooling holes corresponding to the cooling fan.

[0021] The utility model provides a plurality of mounting holes on the four upright posts of the frame, so that the support plate fixed on the frame, the battery support plate and the discharge box installed on the support plate can be arranged in multiple layers. The number of layers can be freely adjusted according to the height of the lithium battery or battery pack to be discharged and the discharge box. A plurality of lithium batteries of different sizes and specifications can be compatible with the same discharge cabinet. When any lithium battery is discharged, the lithium battery can be replaced at any time to continue discharging, which brings great convenience to the timely, fast and intensive discharge processing of various recycled waste lithium batteries.

[0022] The waste lithium battery discharge cabinet provided by the utility model has a discharge connector socket provided on the discharge box and an external discharge clamp connected to the discharge clamp, which clamps the positive and negative electrodes of the lithium battery to be discharged. A PCB control board provided in the cabinet and a heating wire connected to the PCB control board form a discharge circuit. This not only ensures the smooth progress of the discharge process, but also converts the discharged electrical energy into heat energy for dissipation, thereby effectively releasing the heat generated during discharge and effectively avoiding safety hazards caused by the generation of a large amount of heat during discharge.

[0023] The utility model is easy to move and has high discharge efficiency. It can be applied to the discharge of most current new energy vehicle power battery packs. The entire discharge process does not generate wastewater or waste gas, and is safe and environmentally friendly.

[0024] The utility model can also be used for laboratory lithium battery charge and discharge testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of the structure of an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the assembly of the frame, support plate, and battery support plate of the embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the support plate structure of an embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of the battery support structure of an embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram of the external structure of the discharge box of the embodiment of the utility model;

[0030] Figure 6 This is a schematic diagram of the internal structure of the discharge box of the utility model embodiment Figure 1 ;

[0031] Figure 7 This is a schematic diagram of the internal structure of the discharge box of the utility model embodiment Figure 2 ;

[0032] Figure 8This is a schematic diagram of the partial structure of the discharge box chassis of the utility model embodiment;

[0033] Figure 9 This is a schematic diagram of the connection between the discharge box and the support plate of the embodiment of the utility model;

[0034] Figure 10 It is a schematic diagram of a discharge clamp according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0035] 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.

[0036] It should be noted that when an element is referred to as being "connected to," "provided with," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. In addition, the "connection" between elements includes "mechanical connection" or "electrical connection."

[0037] It should also be noted that the directional terms such as "one end", "the other end", "up", "down", "front", "back", "longitudinal", "lateral", "both sides" 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.

[0038] See also Figure 1-10 The embodiment of the utility model provides a waste lithium battery discharge cabinet, which includes a frame 1, a support plate 2, a battery support plate 3, a discharge box 4 and a discharge clamp 5.

[0039] See also Figure 2 The rack 1 of the embodiment of the present invention includes four columns 11 arranged in a rectangular shape. Each column 11 is provided with a plurality of mounting holes 111. A row of mounting holes 111 with equal or unequal spacing is provided in front of the two rear columns 11 from top to bottom. Two rows of mounting holes 111 with equal or unequal spacing are provided in front of the two front columns 11 from top to bottom. The row of mounting holes 111 in the two front columns 11 corresponds to the position of the two rear columns 11. A base 12 is connected to the bottom of the four columns 11, and a top frame 13 is connected to the top of the four columns 11. The four columns 11 are fixed up and down by the top frame 13 and the base 12 to form the rack 1. Four movable wheels 14 are also provided at the bottom of the base 12. The movable wheels 14 can be universal wheels to facilitate the movement of the rack 1 to any position.

[0040] See also Figure 2 and Figure 3 , the support plate 2 of the utility model embodiment is used to support and fix the discharge box 4, and a plurality of support plates 2 are provided. The plurality of support plates 2 can be arranged in layers at intervals up and down as needed. Each support plate 2 is composed of a horizontally arranged transverse support plate 21 and two vertically arranged longitudinal support plates 22 fixed at both ends of the transverse support plate 21. A waist-shaped hole 211 is provided at the center of the transverse support plate 21 for inserting a connecting piece to connect the discharge box 4. The two ends of the two longitudinal support plates 22 are bent relative to the direction of the waist-shaped hole 211, and the bent portion 221 thereof is longitudinally provided with two first connecting holes 222. The spacing between the two first connecting holes 222 corresponds to the mounting holes 111 on the two rear columns 11 and the first row of mounting holes 111 on the two front columns 11. Two support plates 2 are respectively provided on each layer, and the two support plates 2 are respectively connected to the columns 11 arranged at both sides, that is, the columns 11 at both sides are fixed with a support plate 2 at the same height. In this way, the support plate 2 can be fixed between the four columns 11 through the two first connecting holes 222, the mounting holes 111 and the connecting pieces, which is very convenient.

[0041] See also Figure 2 and Figure 4 The two second connecting holes 322 of the two second connecting holes 322 are longitudinally provided with two connecting holes 321 of the two front columns 11, and the spacing between the two second connecting holes 322 corresponds to the second row of mounting holes 111 on the two front columns 11. Each layer is provided with a battery tray 3, and each battery tray 3 can be fixed on the front column 11 through the two second connecting holes 322, the mounting holes 111 and the connecting piece, and extends outward along the front column 11, and its setting position corresponds to the setting position of the support plate 2.

[0042] See also Figure 1 、 Figure 5-Figure 7The discharge box 4 of the present invention is placed on the support plate 2 and includes a chassis 401, a discharge switch 404 mounted on the chassis 401, at least one PCB control board 410, at least one heating wire 414, and at least one discharge connector socket 405. The number of heating wires 414 corresponds to the number of discharge connector sockets 405, and each PCB control board 410 corresponds to a pair of heating wires 414 and discharge connector sockets 405. That is, a single PCB control board 410 can control the discharge of two channels of used lithium batteries. The chassis 401 is a square structure with a concave inner cavity and is covered on the top by a cover plate 402. Figure 7 、 Figure 8 A nut 420 is welded to the middle of both ends of the bottom of the inner cavity of the chassis 401. The center screw hole of the nut 420 passes through the bottom of the inner cavity of the chassis 401. The screw 312 passes through the connection hole 211 at the center of the horizontal support plate 21 of the support plate 2 and is threadedly connected to the nut 420, connecting the chassis 401 to the support plate 2, thereby fixing the discharge box 4 on the support plate 2. Multiple PCB control boards 410 are installed in the inner cavity of the chassis 401 and fixed to the PCB mounting board 412 via support columns 411. The PCB mounting board 412 is fixed to the bottom of the inner cavity of the chassis 401. The PCB control board 410 is integrated with a microcontroller and data storage device for collecting discharge current and discharge voltage data and controlling the discharge status. Figure 7 The two ends of the heating wire 414 are connected to the PCB control board 410. During the discharge process, the electrical energy released by the lithium battery discharge can be converted into heat energy through the heating wire 414, so that the heat generated during discharge is dissipated through the heating wire 414, avoiding the generation of a large amount of heat during discharge and causing safety hazards. Furthermore, the two ends of the heating wire 414 are fixed in the chassis 401 through the insulating column 413, so that the heating wire 414 is suspended and fixed in the inner cavity of the chassis 401, which can avoid contact with the bottom of the inner cavity of the chassis 401 and is beneficial to the heat dissipation of the heating wire 414. In addition, the heating wire 414 can be spirally wound and evenly distributed in the inner cavity of the chassis 401. In this way, the length of the heating wire 414 can be maximized within the limited inner cavity space of the chassis 401, thereby improving the heat dissipation effect of the heating wire 414.

[0043] On the outside of the front sidewall of the chassis 401 (facing the operator), there is also a discharge switch 404 and at least one discharge connector socket 405. A discharge indicator light 406 may also be provided. These are all connected to the PCB control board 410. The discharge switch 404 is used to control the discharge status of the lithium battery. The discharge indicator light 406 displays the discharge status of the lithium battery connected to the discharge connector socket 405 in real time. When the lithium battery is discharging, the discharge indicator light 406 is red. When the battery is not discharging or has completed discharge, the discharge indicator light 406 is green. The discharge indicator lights 406 correspond to the number of discharge connector sockets 405 and are arranged in two rows on the outside of the front sidewall of the chassis 401, facing each other vertically, making it easier for the operator to observe the discharge status.

[0044] In an embodiment of the present invention, a temperature sensor and a buzzer are also integrated on the PCB control board 410. The temperature sensor is used to collect and store the discharge temperature and can monitor the temperature inside the chassis 2 in real time. The buzzer can emit a prompt sound when a discharge abnormality occurs or the discharge is completed to remind the operator, thereby ensuring safe and reliable operation of the discharge process.

[0045] See also Figure 6 In the embodiment of the present invention, a data interface 407 is provided on the outside of the rear side wall of the chassis 401, which is connected to the PCB control board 410. The data in the data storage device can be connected to external devices through the data interface 407, which is convenient for downloading, displaying and sharing discharge data, and is convenient for collecting and analyzing discharge data.

[0046] See also Figure 10 The discharge clamp 5 of the present invention has a discharge connector 51 at one end that is movably connected to the discharge connector socket 405 on the discharge box 4. When the discharge connector 51 is inserted into the discharge connector socket 405, it can be connected to the PCB control board 410. The other end of the discharge clamp 5 is connected to two clamps 53 via a cable 52, which are respectively used to clamp the positive and negative tabs of the lithium battery to be discharged, respectively, on the battery tray 3. The number of discharge clamps 5 corresponds to the number of discharge connector sockets 405 and heating wires 414. In this way, the PCB control board 410, heating wire 414, discharge clamp 5, and the lithium battery to be discharged form a discharge circuit, which allows the used lithium battery to complete the discharge process quickly.

[0047] See also Figure 5-Figure 9In this embodiment of the present invention, at least one cooling fan 409 is also provided on the sidewall of the chassis 401. Specifically, two cooling fans 409 are provided, located within the interior of the chassis 401. These fans 409 are positioned opposite each other and fixed to the inner sidewalls on either side of the chassis 401, forming a heat dissipation channel within the interior of the chassis 401. First cooling holes 418 are provided on the sidewalls of the chassis 401 on either side where the cooling fans 409 are installed. These first cooling holes 418 are formed by a combination of multiple arc-shaped holes of varying sizes that radiate heat outward. Simultaneously, two rows of evenly distributed second cooling holes 419 are provided on the rear sidewall of the chassis 401. These second cooling holes 419 are elongated in shape. The combination of the cooling fans 409, the first cooling holes 418, and the second cooling holes 419 accelerates the dissipation of heat generated by the PCB control board 410 and the heating wire 414, preventing safety hazards caused by overheating within the interior of the chassis 401 and ensuring the normal operation of the present invention.

[0048] See also Figure 6 On the outside of the rear side wall of the chassis 401, there is also an external power socket 408, which can be connected to an external 220V AC power supply to power the discharge cabinet during discharge. Figure 5 and Figure 7 A power switch 403 is located on the outside of the front sidewall of chassis 401 to control the on / off of the external power supply. When power switch 403 is on, cooling fan 409 within chassis 401 rotates at a lower speed to dissipate heat. When it detects that a lithium battery is discharging, cooling fan 409 switches to high speed under the control of PCB control board 410.

[0049] In the above structure of the present invention, evenly distributed mounting holes 111 are provided on the four uprights 11 of the frame 1, which facilitates the installation of the multi-layered support plate 2, the battery support plate 3 and the discharge box 4. The number of layers of the discharge box 4 and the inter-layer spacing of the discharge box 4 can be freely adjusted by selecting mounting holes 111 of different heights according to the lithium battery or battery pack to be discharged and the height of the discharge box 4. A variety of lithium batteries of different sizes and specifications can be compatible with the same discharge cabinet, which is suitable for the discharge of most current battery packs and single cells. It can work anytime and anywhere, bringing great convenience to the timely, fast and intensive discharge processing of recycled waste lithium batteries, and improving the safety performance of waste lithium battery recycling. At the same time, the entire discharge process does not generate wastewater or waste gas, and is safe, efficient and pollution-free, meeting the current environmental protection requirements for waste lithium battery processing.

[0050] Working process of the embodiment of the utility model:

[0051] (1) Connect the power socket 408 to a 220V AC power source using a power cord;

[0052] (2) Connect the discharge plug 51 on the discharge clamp 5 to the discharge connector socket 405 on the discharge box 4 to connect the discharge clamp 4 to the discharge box 4;

[0053] (3) Place multiple used lithium batteries to be discharged on each battery support plate 3;

[0054] (4) Press the power switch 403 on the discharge box 4;

[0055] (5) The two discharge clamps 53 of the same group on each discharge clamp 5 are respectively clamped to the positive and negative electrodes of the corresponding used lithium batteries to be discharged;

[0056] (6) Press the discharge switch 404 (discharge starts at this time and the indicator light 406 of the corresponding channel turns red);

[0057] (7) Let it stand for a while. When the discharge is complete, the indicator light 406 will turn green. At this time, remove and replace the lithium battery and repeat the above steps to continuously discharge the used lithium battery.

[0058] In this way, each waste lithium battery discharge cabinet can safely and quickly discharge multiple waste lithium batteries of different sizes and specifications at a time. The embodiment of the utility model shown in the accompanying drawings has a rack 1 with seven layers, each layer of discharge boxes 4 having ten discharge channels. Each layer can discharge ten waste lithium batteries simultaneously, meaning that up to 70 waste lithium batteries and / or battery packs can be discharged simultaneously. It takes up very little space and can be recycled 24 hours a day.

[0059] The above embodiments of the present invention are only part of the preferred embodiments of the present invention and cannot be understood as limiting the present invention. Without departing from the essence of the present invention, any modifications, changes, substitutions and variations made by those skilled in the art shall fall within the scope of protection of the present invention.

Claims

1. A waste lithium battery discharge cabinet, characterized in that: include: The frame comprises four columns arranged in a rectangular shape, each of the columns having a plurality of mounting holes arranged vertically; At least one supporting plate, with both ends of each supporting plate being arranged in layers between the four upright posts through the mounting holes and the connecting pieces; At least one battery support plate, used to support the waste lithium batteries to be discharged, with both ends of the battery supported on the two front columns in a layered manner through the mounting holes and the connectors, and extending outward, corresponding to the location of the support plate; At least one discharge box is placed on the support plate. Each discharge box includes a chassis, a discharge switch mounted on the chassis, at least one discharge connector socket, at least one PCB control board, and at least one heating wire. The PCB control board is integrated with a microcontroller and a data storage device for collecting discharge current and discharge voltage data and controlling the discharge state. The discharge switch, the discharge connector socket, and the heating wire are all connected to the PCB control board. A discharge clip, one end of which is provided with a discharge connector movably connected to the discharge connector socket on the discharge box, and is connected to the PCB control board through the discharge connector socket; the other end of which is provided with two clamps, respectively used to clamp the positive and negative electrodes of the lithium battery to be discharged correspondingly arranged on the battery support plate; the number of the discharge clips corresponds to the number of the discharge connector sockets and the heating wire.

2. A waste lithium battery discharge cabinet according to claim 1, characterized in that: The discharge box further includes discharge indicator lights for displaying a discharge state, and the number of the discharge indicator lights corresponds to the number of the discharge connector sockets.

3. A waste lithium battery discharge cabinet according to claim 2, characterized in that: The PCB control board and the heating wire are arranged in the inner cavity of the discharge box, the discharge switch, the discharge indicator light and the discharge connector socket are all arranged on the outside of the side wall of the discharge box, and the discharge indicator light and the discharge connector socket are arranged opposite to each other up and down.

4. A waste lithium battery discharge cabinet according to any one of claims 1 to 3, characterized in that: The PCB control board is fixed on the PCB mounting board through support columns, and the PCB mounting board is fixed on the bottom of the inner cavity of the chassis.

5. A waste lithium battery discharge cabinet according to any one of claims 1 to 3, characterized in that: The two ends of the heating wire are fixed in the chassis through insulating columns, so that the heating wire is suspended in the inner cavity of the chassis.

6. A waste lithium battery discharge cabinet according to claim 5, characterized in that: Each heating wire is spirally wound and evenly distributed in the inner cavity of the chassis.

7. A waste lithium battery discharge cabinet according to any one of claims 1 to 3, characterized in that: The PCB control board is also provided with a temperature sensor for sensing the discharge temperature.

8. A waste lithium battery discharge cabinet according to any one of claims 1 to 3, characterized in that: The PCB control board is also provided with a buzzer for alarming when discharge is abnormal.

9. A waste lithium battery discharge cabinet according to any one of claims 1 to 3, characterized in that: The outer side of the side wall of the discharge box is also provided with a data interface connected to the PCB control board.

10. A waste lithium battery discharge cabinet according to any one of claims 1 to 3, characterized in that: The side wall of the chassis is provided with at least one heat dissipation fan and a plurality of heat dissipation holes corresponding to the heat dissipation fan.

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