Batch discharging tool for lithium ion batteries

Abstract

A lithium ion battery batch discharging tool comprises a clamping assembly and a load assembly which are electrically connected with each other, and is characterized in that the clamping assembly is provided with a plurality of containing grooves and battery interfaces formed in one sides of the containing grooves, and the battery interfaces are electrically connected to batteries; the load assembly is provided with a plurality of resistors, and the resistors are electrically connected to the battery interface. When the device is used, the discharging speed of the single bodies is considered, the number of the single bodies capable of discharging at the same time is guaranteed, and batch efficient discharging is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery regeneration, in particular to a lithium ion battery batch discharge tool. Background Art

[0002] With the development of electric vehicles in my country, the number of retired and scrapped power batteries of electric vehicles continues to increase. In order to protect the environment, retired power batteries must be recycled. Specifically, the basic units that constitute the battery (hereinafter referred to as monomers) are disassembled, crushed, and subjected to a series of chemical procedures to turn the waste power batteries into raw materials for making new batteries, thereby achieving the purpose of recycling. However, the monomers of retired waste power batteries all have a certain amount of electricity, and they must be discharged before disassembly to avoid accidents caused by short circuits and fires before the monomers are disassembled.

[0003] Lithium-ion batteries require maintenance to ensure normal battery performance during long-term storage and product delivery. The current maintenance equipment can only support the discharge of 8 lithium-ion batteries (4.2v3000mAh) at the same time. In actual application, the number of lithium-ion batteries that need maintenance is often large, and it is usually necessary to implement maintenance operations in multiple batches or prepare multiple sets of maintenance equipment to meet the requirements. Utility Model Content

[0004] In view of the shortcomings of the background technology, the purpose of the utility model is to provide a batch discharge tool for lithium-ion batteries.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lithium-ion battery batch discharge tool comprises a clamping assembly and a load assembly electrically connected to each other, wherein the clamping assembly is provided with a plurality of accommodating grooves and a battery interface arranged on one side of the accommodating grooves, and the battery interface is electrically connected to the battery; and the load assembly is provided with a plurality of resistors, and the resistors are electrically connected to the battery interface.

[0007] Further, the clamping assembly includes a first base, a side of the first base is provided with a plurality of first interfaces, and the battery interface is electrically connected to the first interface via a lead wire; the load assembly includes a second base, a side of the second base is provided with a plurality of second interfaces, the second interfaces are electrically connected to the resistor, and the first interface is electrically connected to the second interface

[0008] Furthermore, a connection cable is electrically connected between the first interface and the second interface, and connection terminals are provided at both ends of the connection cable, and the two connection terminals are electrically connected to the first interface and the second interface respectively.

[0009] Furthermore, both the first interface and the second interface are provided with a fixing mechanism, and the fixing mechanism includes a first fixing block and a second fixing block which are arranged opposite to each other, the first fixing block is provided with a hook, and the second fixing block is provided with an anti-foolproof groove.

[0010] Furthermore, one side of the connecting terminal is provided with an anti-foolproof protrusion adapted to the anti-foolproof groove, and the other opposite side is provided with a buckle adapted to the hook.

[0011] Furthermore, the first base includes a transversely extending partition and a longitudinally extending end plate, and the partition and the end plate are combined to divide the space above the first base into a plurality of accommodating slots for accommodating the batteries.

[0012] Furthermore, the second base is also provided with an indicator light, which is electrically connected to the resistor so that the resistor, the battery and the indicator light form a circuit; the indicator light lights up when the battery starts to discharge, and the indicator light goes out when the battery stops discharging.

[0013] Furthermore, the second base is also provided with a discharge switch, which is connected in series to the resistor, the battery and the indicator light and is used to start and stop discharging.

[0014] Furthermore, the second base is also provided with a plurality of gear switches, the gear switches are connected in series to the discharge switch, the resistor, the battery and the indicator light, and the gear switches are used to adjust the voltage between the switching circuits.

[0015] Furthermore, the second base is also provided with a zero adjustment potentiometer, and the zero adjustment potentiometer is connected in series to the gear switch, the discharge switch, the resistor, the battery and the indicator light.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model proposes a lithium-ion battery batch discharge tooling, which can be flexibly configured according to actual needs by separating the clamping component and the load component to form two modular discharge trays. Different numbers of modules can be combined together to meet the needs of different voltages and capacities, which makes the discharge tooling more adaptable to various application scenarios, simplifies the maintenance process, and improves the reliability and stability of the equipment.

[0018] 2. The utility model proposes a lithium-ion battery batch discharge tooling, which takes into account the single-cell discharge speed through the setting of the load component, and realizes as many single cells as possible that can be discharged simultaneously, thereby realizing batch efficient discharge, meeting environmental protection requirements, and facilitating large-scale production of physical discharge.

[0019] 3. The utility model proposes a lithium-ion battery batch discharge tool. By setting the gear switch, the discharge current gear selection switch allows the user to adjust the discharge current according to actual needs. This flexibility enables the tool to be suitable for a variety of different application scenarios and meet the discharge requirements of different equipment or systems.

[0020] 4. The utility model proposes a lithium-ion battery batch discharge tooling, which can accurately adjust the zero point offset in the circuit and optimize the overall performance of the circuit by setting the zero adjustment potentiometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of a lithium-ion battery batch discharge tooling of the utility model;

[0023] Figure 2 This is one of the schematic diagrams of a clamping assembly of a lithium-ion battery batch discharge tooling of the utility model;

[0024] Figure 3 This is a second schematic diagram of a clamping assembly of a lithium-ion battery batch discharge tooling of the utility model;

[0025] Figure 4 It is a schematic diagram of a load component of a lithium-ion battery batch discharge tooling of the utility model;

[0026] Figure 5 A schematic diagram of a connection cable of a lithium-ion battery batch discharge tooling of the utility model;

[0027] Figure 6 for Figure 2 A magnified view of point A;

[0028] Figure 7 for Figure 3 The enlarged view of point B;

[0029] Figure 8 for Figure 5 Enlarged view of point C.

[0030] In the figure, 10, first base; 20, second base; 30, connecting cable; 101, receiving slot; 102, battery interface; 103, lead; 104, first interface; 201, resistor; 202, indicator light; 203, discharge switch; 204, second interface; 205, zero adjustment potentiometer; 206, gear switch; 301, connecting terminal; 401, first fixing block; 402, second fixing block; 4011, foolproof groove; 4021, hook; 501, foolproof convex part; 502, buckle. DETAILED DESCRIPTION

[0031] Combine the following Figure 1-8 The utility model is described in detail.

[0032] A lithium-ion battery batch discharge tool, such as Figure 1 and Figure 7 As shown, it includes a clamping component and a load component electrically connected to each other. The clamping component is provided with a plurality of accommodating grooves 101 and a battery interface 102 arranged on one side of the accommodating grooves 101, and the battery interface 102 is electrically connected to the battery; the load component is provided with a plurality of resistors 201, and the resistors 201 are electrically connected to the battery interface 102.

[0033] In this embodiment, if Figure 2-3 As shown, the clamping assembly includes a first base 10, a plurality of first interfaces 104 are provided on one side of the first base 10, and a lead 103 is electrically connected between the battery interface 102 and the first interface 104; the load assembly includes a second base 20, as shown Figure 4 As shown, a plurality of second interfaces 204 are provided on one side of the second base 20, and the second interfaces 204 are electrically connected to the resistor 201, and the first interfaces 104 are electrically connected to the second interfaces 204. The first base 10 is provided with thirty first interfaces 104, and the thirty first interfaces 104 are fifteen interfaces in each of the upper and lower rows, and the second base 20 is provided with ten second interfaces 204, as shown in FIG. Figure 1 As shown, the first base 10 is connected to two second bases 20 via a connecting cable 30, so that there are 5 interfaces left in the upper and lower rows respectively. The remaining interfaces can also be connected to the third second base 20, or the upper and lower rows are respectively connected to two second bases 20, and then connected to the second first base 10.

[0034] In this embodiment, if Figure 5 As shown, a connecting cable 30 is electrically connected between the first interface 104 and the second interface 204. Both ends of the connecting cable 30 are provided with connecting terminals 301. The two connecting terminals 301 are electrically connected to the first interface 104 and the second interface 204 respectively. Further, the first interface 104 and the second interface 204 are both provided with a fixing mechanism, such as Figure 6As shown, the fixing mechanism includes a first fixing block 401 and a second fixing block 402 arranged opposite to each other, the first fixing block 401 is provided with a hook 4021, and the second fixing block 402 is provided with an anti-fool groove 4011. Figure 8 As shown, one side of the connection terminal 301 is provided with an anti-foolproof protrusion 501 adapted to the anti-foolproof groove 4011 , and the other opposite side is provided with a buckle 502 adapted to the hook 4021 .

[0035] In this embodiment, the first base 10 includes a transversely extending partition and a longitudinally extending end plate. The partition and the end plate are combined to divide the space above the first base 10 into a plurality of receiving slots 101 for receiving batteries. The discharge plate includes a discharge bottom plate, a transversely extending partition, and a longitudinally extending end plate. The partition and the end plate are combined to divide the space above the discharge bottom plate into a plurality of areas for receiving discharge units, that is, the partition and the end plate are combined into a grid-like receiving slot 101. An arc-shaped recess is also provided on one side of the receiving slot 101 for easy access. The receiving slot 101 can prevent the collapse of the monomer during transportation and can also effectively fix the monomer.

[0036] Further, the second base 20 is also provided with an indicator light 202, which is electrically connected to the resistor 201, so that the resistor 201, the battery and the indicator light 202 form a circuit; when the battery starts to discharge, the indicator light 202 lights up, and when the battery ends discharging, the indicator light 202 goes out. Further, the second base 20 is also provided with a discharge switch 203, which is connected in series with the resistor 201, the battery and the indicator light 202, and is used to start and stop discharging. Further, the second base 20 is also provided with a plurality of gear switches 206, which are connected in series with the discharge switch 203, the resistor 201, the battery and the indicator light 202, and the gear switch 206 is used to adjust the voltage between the switching circuits. Further, the second base 20 is also provided with a zeroing potentiometer 205, which is connected in series with the gear switch 206, the discharge switch 203, the resistor 201, the battery and the indicator light 202. Each zeroing potentiometer 205, gear switch 206, discharge switch 203, resistor 201, battery and indicator light 202 independently constitutes a discharge circuit and has no electrical connection with other discharge units. Therefore, the monomer placed thereon does not affect other monomers during discharge, so the discharge is safe and reliable. In addition, there are a large number of accommodating slots 101 on the first base 10, so multiple monomers can be discharged at the same time, thereby greatly improving the discharge productivity.

[0037] The resistance of the resistor 201 is selected to be in the range of 0.1 to 1 ohm. Since the voltage of a common cell is between 2.5 and 4 volts (for a common power battery, the voltage of a lithium battery is about 4.2 volts), the minimum discharge current is 4.2 amperes. This discharge current is a normal rate discharge for a common cell (the capacity of a common cell is above 3 ampere hours).

[0038] Regarding the discharge speed, taking a commonly used 3Ah lithium battery as an example, if a resistor 201 with a value of 1 ohm is selected, the discharge current is about 4 amperes, and the time to complete the discharge is 0.75 hours, that is, each discharge unit 200 can complete the discharge of nearly 32 monomers per day. There are thirty monomers on the first base 10 that discharge simultaneously, so the number of monomers that can be discharged by one device per day is 960. If 200 such discharge trays are used, the number of monomers 200 discharged per day is 200×960=192,000. Each of the lithium batteries weighs about 1 kilogram, so the weight of monomers that can be discharged by 200 discharge trays per day is 192 tons, which has good discharge efficiency.

[0039] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A lithium-ion battery batch discharge tool, comprising a clamping assembly and a load assembly electrically connected to each other, characterized in that: The clamping assembly is provided with a plurality of accommodating grooves and a battery interface arranged on one side of the accommodating groove, and the battery interface is electrically connected to the battery; the load assembly is provided with a plurality of resistors, and the resistors are electrically connected to the battery interface.

2. A lithium-ion battery batch discharge tool as claimed in claim 1, characterized in that: The clamping assembly includes a first base, a plurality of first interfaces are provided on one side of the first base, and the battery interface is electrically connected to the first interface via a lead; the load assembly includes a second base, a plurality of second interfaces are provided on one side of the second base, the second interface is electrically connected to the resistor, and the first interface is electrically connected to the second interface.

3. A lithium-ion battery batch discharge tool as claimed in claim 2, characterized in that: A connection cable is electrically connected between the first interface and the second interface. Connection terminals are provided at both ends of the connection cable. The two connection terminals are electrically connected to the first interface and the second interface respectively.

4. A lithium-ion battery batch discharge tool as claimed in claim 3, characterized in that: The first interface and the second interface are both provided with a fixing mechanism, and the fixing mechanism includes a first fixing block and a second fixing block arranged opposite to each other, the first fixing block is provided with a hook, and the second fixing block is provided with an anti-foolproof groove.

5. A lithium-ion battery batch discharge tool as claimed in claim 4, characterized in that: One side of the connecting terminal is provided with an anti-foolproof protrusion matched with the anti-foolproof groove, and the other opposite side is provided with a buckle matched with the hook.

6. A lithium-ion battery batch discharge tool as claimed in claim 2, characterized in that: The first base includes a transversely extending partition and a longitudinally extending end plate. The partition and the end plate are combined to divide the space above the first base into a plurality of accommodating slots for accommodating the batteries.

7. A lithium-ion battery batch discharge tool as claimed in claim 2, characterized in that: The second base is also provided with an indicator light, which is electrically connected to a resistor so that the resistor, the battery and the indicator light form a circuit; the indicator light lights up when the battery starts to discharge, and the indicator light goes out when the battery finishes discharging.

8. A lithium-ion battery batch discharge tool as claimed in claim 7, characterized in that: The second base is also provided with a discharge switch, which is connected in series with the resistor, the battery and the indicator light and is used to start and stop discharging.

9. A lithium-ion battery batch discharge tool as claimed in claim 8, characterized in that: The second base is also provided with a plurality of gear switches, which are connected in series to the discharge switch, the resistor, the battery and the indicator light, and are used to adjust the voltage between the switching circuits.

10. A lithium-ion battery batch discharge tool as claimed in claim 9, characterized in that: The second base is also provided with a zero adjustment potentiometer, and the zero adjustment potentiometer is connected in series to the gear switch, the discharge switch, the resistor, the battery and the indicator light.

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