Waste lithium battery discharging instrument

Abstract

The utility model provides a waste lithium battery discharger, which comprises a case, an inner cavity enclosed by a top plate, a bottom plate and a side wall, a PCB (printed circuit board) control panel and a heating wire arranged in the inner cavity, and a touch screen for displaying relevant data of a discharge state, a discharge switch and a discharge joint socket for externally connecting a discharge clamp arranged on the side wall, the touch screen, the discharge switch and the discharge connector socket are all connected with the PCB control board; the discharge switch is used for controlling the discharge of the lithium battery to be discharged, and the discharge clamp is provided with two clamping heads which are respectively used for clamping the positive electrode and the negative electrode of the lithium battery to be discharged; the PCB control panel is integrated with a microcontroller, is used for collecting discharge current and discharge voltage data and controlling the discharge state, and is connected with the touch screen and the heating wire, and the PCB control panel, the discharge connector socket, the discharge clamp and the lithium battery to be discharged form a discharge loop. According to the utility model, the waste single lithium battery and the battery pack can be safely, quickly and locally discharged in real time, and the whole discharging process does not generate waste water and waste gas and is safe and environment-friendly.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste lithium battery recycling, in particular to a discharge device for waste single batteries or battery packs. 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, they 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's essential to test and rapidly discharge the replaced battery packs. Summary of the Invention

[0004] The purpose of the utility model is to provide a waste lithium battery discharger, which can discharge waste single lithium batteries and battery packs safely and quickly and can be recycled for 24 hours.

[0005] The utility model provides a waste lithium battery discharger, comprising a chassis, wherein the chassis is enclosed by a top plate, a bottom plate, and side walls to form an inner cavity, wherein a PCB control board and a heating wire are provided in the inner cavity, and the side walls of the chassis are provided with a touch screen for displaying discharge status-related data, at least one discharge switch, and at least one discharge connector socket for externally connecting a discharge clamp, wherein the touch screen, the discharge switch, and the discharge connector socket are all connected to the PCB control board; the discharge switches correspond to the number of the discharge clamps and are used to control the discharge of the lithium battery to be discharged, and the discharge clamp has two clamping heads, respectively used to clamp the positive and negative electrodes of the lithium battery to be discharged; a microcontroller is integrated on the PCB control board, which is used to collect discharge current and discharge voltage data and control the discharge status, and is connected to the touch screen; the PCB control board is also connected to both ends of the heating wire, and forms a discharge circuit with the discharge connector socket, the discharge clamp, and the lithium battery to be discharged.

[0006] Optionally, the touch screen is arranged obliquely on the outside of the side wall of the chassis.

[0007] 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.

[0008] Optionally, a temperature sensor is further provided on the PCB control board for sensing the discharge temperature.

[0009] Optionally, a buzzer is further provided on the PCB control board for alarming when discharge is abnormal.

[0010] 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.

[0011] Optionally, at least two heating wires are provided and are evenly distributed in the inner cavity of the chassis at an angle.

[0012] Optionally, the heating wire is spirally wound.

[0013] Optionally, a side wall of the chassis is provided with a cooling fan and cooling holes corresponding to the cooling fan.

[0014] Optionally, the side wall of the chassis is further provided with a power connector for connecting an external power supply and a power switch for controlling the on and off of the external power supply.

[0015] The lithium battery discharger provided by the utility model does not need to move the lithium battery to be discharged. A discharge clamp is externally connected through a discharge connector socket, and the discharge clamp clamps the positive / negative pole ears of the lithium battery to be discharged. A PCB control board and a heating wire connected to the PCB control board are arranged in a chassis to convert the discharged electrical energy into heat energy for dissipation, thereby effectively releasing the heat generated during discharge. At the same time, the discharge status is displayed in real time through a touch screen.

[0016] The utility model can be provided with a group of discharge clamps, each of which can discharge a recycled waste power battery pack or a single lithium battery safely, quickly and on-site in real time. When any lithium battery is discharged, the lithium battery can be replaced at any time to continue discharging, which is very convenient to use.

[0017] The utility model has the advantages of light weight, flexible and convenient movement, high discharge efficiency, and is suitable for the discharge of most current battery packs and single batteries. Moreover, the entire discharge process does not generate waste water or waste gas, and is safe and environmentally friendly.

[0018] The utility model can also be used for laboratory lithium battery charge and discharge testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural stereogram of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the back and internal structure of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the front and internal structure of an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the PCB control board installation structure of the utility model embodiment;

[0023] Figure 5 Schematic diagram of the discharge clamp structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0024] 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.

[0025] 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."

[0026] It should also be noted that the directional terms such as "left" and "right" 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.

[0027] See also Figure 1-5 The embodiment of the utility model provides a waste lithium battery discharger, which can safely, quickly and on-sitely discharge 6 waste lithium battery packs or single lithium batteries at a time.

[0028] See also Figure 1, including a chassis 2, supported by a foot pad 1, the chassis 2 is enclosed by a top plate 22, a bottom plate 23 and a side wall 21 to form an inner cavity that can accommodate electronic devices, wherein the side wall 21 includes a panel 211, a first side plate 212, a second side plate 213 and a back plate 214, which can be made by bending and welding Q235 iron plates, the top plate 22 and the bottom plate 23 are fixedly connected to the side wall 21, and each surface is rust-proofed by a baking paint process. In the inner cavity of the chassis 2, a PCB control board 11 and a heating wire 14 are provided. A microcontroller is integrated on the PCB control board 11 for collecting discharge current and discharge voltage data and controlling the discharge state. Both ends of the heating wire 14 are connected to the PCB control board 11. During the discharge process, the electrical energy released by the lithium battery is converted into heat energy through the heating wire 14, so that the heat generated during discharge is dissipated through the heating wire 11. A touch screen 6, at least one discharge switch 4, and at least one discharge connector socket 3 are provided on the outside of the side wall 21 of the chassis 2. Specifically, the touch screen 6, the discharge switch 4, and the discharge connector socket 3 are all located on the panel 211 of the side wall 21 and open outward. The touch screen 6, the discharge switch 4, and the discharge connector socket 3 are simultaneously connected to the PCB control board 11 in the inner cavity. The touch screen 6 is used to display data related to the discharge status, such as the voltage, current, estimated discharge completion time, discharge temperature, and whether the discharge is completed of each discharge channel; the discharge switch 4 is used to control the on and off of the discharge status of the lithium battery, and display it in real time through the indicator light 5. The indicator light 5 is used to display the discharge status of the lithium battery connected to the group of discharge connector sockets 3. When the lithium battery is in the discharge state, the indicator light 5 is red, and when it is not discharged or the discharge is completed, the indicator light 5 is green. The indicator light 5 is also installed on the panel 211. The number of discharge switches 4, discharge connector sockets 3, and indicator lights 5 corresponds, and they are arranged in three rows on the panel 211. The discharge connector socket 3 is used to be externally connected to the discharge clamp 8, and the discharge clamp 8 is used to be connected to the positive and negative poles of the lithium battery to be discharged, see Figure 5 The discharge clamp 8 has two clamps 83, each used to clamp the positive and negative tabs of the lithium battery to be discharged. The two clamps 83 are connected to the discharge connector 81 via a cable 82. The discharge connector 81 can be plugged into the discharge connector socket 3. In this way, the PCB control board 11, heating wire 14, discharge clamp 8 and lithium battery to be discharged form a discharge circuit, completing the discharge process.

[0029] See also Figure 1-3 In a specific embodiment of the present invention, the touch screen 6 can be tilted and positioned on the outside of the side wall 21. Specifically, the touch screen 6 is located on the panel 211 of the side wall 21. The left portion of the panel 211 is tilted toward the interior of the chassis 2. This tilted positioning of the touch screen 6 on the left outside of the panel 211 of the chassis 2 provides a visually enhanced viewing experience for the operator. The discharge switch 4, discharge connector socket 3, and indicator light 5 are located on the right outside of the panel 211. It is understood that the positions of the touch screen 6, discharge switch 4, discharge connector socket 3, and indicator light 5 are interchangeable.

[0030] See also Figure 2-3 In a specific embodiment provided by the present invention, a PCB mounting plate 13 is provided within the inner cavity of the chassis 2 and fixed to the base plate 23, securing the PCB mounting plate 13 to the bottom of the inner cavity of the chassis 2. Support columns 12 are provided vertically upwardly from the PCB mounting plate 13, with the PCB control board 11 positioned atop the columns 12. This allows the PCB control board 11 to be suspended from the PCB mounting plate 13, facilitating both securing the PCB control board 11 and dissipating heat from the PCB control board 11. The PCB mounting plate 13 is finished with a paint finish and is a bent Q235 sheet metal part. A channel is formed at the bottom of the PCB mounting plate 13, and waist-shaped holes 131 are provided on the side for collecting internal cables and facilitating their securement.

[0031] Optionally, the illustrated embodiment of the present invention is provided with three PCB control boards 11, six discharge connector sockets 3, a discharge switch 4 and an indicator light 5 according to the corresponding number of discharge connector sockets 3. Each PCB control board 11 is respectively connected to two discharge connector sockets 3 and a heating wire 14, that is, each PCB control board 11 can control the discharge of two channels of lithium batteries.

[0032] A temperature sensor is integrated on the PCB control board 11 for monitoring the temperature inside the chassis 2 . A buzzer can also be integrated on the PCB control board 11 for alarming when discharge is abnormal.

[0033] See also Figure 3 The ends of the heating wire 14 are fixed within the chassis 2 via insulating posts 15. The lower end of the insulating post 15 is fixed to the bottom plate 23 of the chassis 2, and a fixing rod extends upward from the upper end. The ends of the heating wire 14 are mounted on the fixing rod and fixed. This prevents the heating wire 14 from contacting the bottom plate 23 of the chassis 2 while allowing the heating wire 14 to be suspended within the interior of the chassis 2, which facilitates heat dissipation. The number of heating wires 14 corresponds to the number of discharge connector sockets 3, and six heating wires 14 can be provided. These are spirally wound, similar to a spring shape, and are evenly distributed within the interior of the chassis 2 at a certain angle to the two side panels (first side panel 212 and second side panel 213) of the chassis 2. This increases the length of the heating wire 14 within the limited space of the chassis 2, improving heat dissipation.

[0034] See also Figure 2 and Figure 3In a specific embodiment of the present invention, a cooling fan 7 is further installed on the side wall 21 of the inner cavity of the chassis 2. Two cooling fans 7 are provided, which are respectively installed at the same position of the opposite first side plate 212 and the second side plate 213. At the same time, the installation positions of the cooling fans 7 on the first side plate 212 and the second side plate 213 are respectively provided with a plurality of annular first cooling holes 2121 and second cooling holes 2131. Correspondingly, a plurality of evenly distributed straight third cooling holes 2141 are provided on the back plate 214. Through the combination of the cooling fans 7 and the cooling holes, the heat generated by the PCB control board 11 and the heating wire 14 can be dissipated outward, thereby avoiding safety hazards caused by overheating in the chassis 2.

[0035] See also Figure 2 A power socket 9 and a power switch 10 are also located on the back panel 214 of the side wall 21 of the chassis 2. The power socket 9 is used to connect to an external power source, thereby powering the PCB control board 11, touch screen 6, cooling fan 7, indicator light 5, etc. The power switch 10 is used to control the external power source on and off. When the power switch 10 is turned on, the cooling fan 7 in the chassis 2 can rotate at a lower speed to dissipate heat. When any discharge button 4 is pressed and it is detected that a lithium battery is discharging, the cooling fan 7 can switch to high speed under the control of the PCB control board 11.

[0036] Working process of the embodiment of the utility model:

[0037] (1) Connect the power socket 9 to a 220V AC power source via a power cord.

[0038] (2) Connect the plug 81 with the discharge clamp 83 to the discharge connector socket 3 on the panel 211 of the chassis 2, connect the discharge clamp 8 to the discharge connector socket 3, and press the power switch 10.

[0039] (3) The two discharge clamps 83 are used to clamp the positive and negative electrodes of the used lithium battery to be discharged.

[0040] (4) Press the discharge button 4 of the corresponding channel (discharge starts at this time, the discharge data will be displayed on the touch screen 6, and the indicator light 5 of the corresponding channel will turn red).

[0041] (5) When discharge is complete, indicator light 5 turns green. Remove and replace the lithium battery and repeat the above steps.

[0042] In this way, each discharger can safely and quickly discharge six lithium batteries or battery packs at a time and can be used in a 24-hour cycle.

[0043] 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 waste lithium battery discharge instrument, characterized in that: The invention comprises a chassis, wherein the chassis is enclosed by a top plate, a bottom plate and side walls to form an inner cavity, wherein a PCB control board and a heating wire are provided in the inner cavity, and the side walls of the chassis are provided with a touch screen for displaying data related to the discharge status, at least one discharge switch and at least one discharge connector socket for externally connecting a discharge clamp, wherein the touch screen, the discharge switch and the discharge connector socket are all connected to the PCB control board; the discharge switches correspond to the number of discharge clamps and are used to control the discharge of lithium batteries to be discharged, and the discharge clamps have two clamping heads, respectively used to clamp the positive and negative electrodes of the lithium batteries to be discharged; the PCB control board is integrated with a microcontroller for collecting discharge current and discharge voltage data and controlling the discharge status, and is connected to the touch screen; the PCB control board is also connected to both ends of the heating wire, and forms a discharge circuit with the discharge connector socket, the discharge clamp and the lithium batteries to be discharged.

2. A waste lithium battery discharger according to claim 1, characterized in that: The touch screen is arranged obliquely on the outer side of the side wall of the chassis.

3. A waste lithium battery discharger according to claim 1, 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.

4. A waste lithium battery discharger according to claim 1 or 3, characterized in that: The PCB control board is also provided with a temperature sensor for sensing the discharge temperature.

5. A waste lithium battery discharger according to claim 1 or 3, characterized in that: The PCB control board is also provided with a buzzer for alarming when discharge is abnormal.

6. A waste lithium battery discharger according to claim 1, 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.

7. A waste lithium battery discharger according to claim 6, characterized in that: There are at least two heating wires, which are evenly distributed in the inner cavity of the chassis.

8. A waste lithium battery discharger according to any one of claims 1, 6 or 7, characterized in that: The heating wire is spirally wound.

9. A waste lithium battery discharger according to claim 1, characterized in that: The side wall of the chassis is provided with a heat dissipation fan and heat dissipation holes corresponding to the heat dissipation fan.

10. A waste lithium battery discharger according to claim 1, characterized in that: The side wall of the chassis is also provided with a power connector for connecting an external power source and a power switch for controlling the on and off of the external power source.

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