Thermoelectric conversion system for heat dissipation of indoor charging and discharging cabinet

Abstract

A thermoelectric conversion system for heat dissipation of an indoor charging and discharging cabinet comprises a controller, a discharging control module, a charging control module, a current detection module and a thermoelectric converter, the output end of the controller is connected with the input end of the charging control module and the input end of the discharging control module, the charging control module is connected with a positive port of a battery module, and the current detection module is connected with a negative port of the battery module. The charging control module is connected with a negative electrode port of the battery module, the discharging control module is connected with a negative electrode port of the battery module, the output end of the controller is connected with the input end of the current detection module, the output end of the current detection module is connected with the charging control module, the discharging control module and the battery module, and the output end of the thermoelectric converter is connected with the input end of the controller. The heat energy generated by charging and discharging the battery module in the charging and discharging cabinet is converted into the electric energy, so that the heat energy is recycled, on one hand, the electric energy obtained by conversion can be supplied to the charging and discharging cabinet for use, and on the other hand, the temperature of an indoor test environment is reduced by absorbing the heat energy.

Description

Technical Field

[0001] This utility model relates to the field of charging and discharging cabinet technology, specifically to a thermoelectric conversion system for heat dissipation in indoor charging and discharging cabinets. Background Technology

[0002] The technology of charge / discharge cabinets mainly involves the safe charging, storage, and management of lithium batteries, as well as the testing and optimization of battery performance. With the widespread application of lithium batteries, their safety, lifespan, and performance management have become critical issues. Existing charge / discharge cabinets are devices used to store and release electrical energy. They achieve this by controlling the input and output of current and voltage. During charging, the cabinet controls the current and voltage to ensure that the energy storage components can accept electrical energy safely and efficiently. During discharging, the cabinet outputs the stored electrical energy. However, existing charge / discharge cabinets generate heat during the charging and discharging process. For example, during discharging, the existing electrical energy of the battery is released through the cabinet, but the released heat is not recovered and utilized. This results in energy waste, and the high temperatures of the environment and the cabinet itself during long-term use make it more prone to aging and damage. Furthermore, the high indoor testing environment affects the accuracy and safety of battery charge / discharge tests. Utility Model Content

[0003] The purpose of this invention is to provide a thermoelectric conversion system for heat dissipation in indoor charging and discharging cabinets, which can effectively solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A thermoelectric conversion system for heat dissipation in an indoor charging and discharging cabinet includes a controller, a discharging control module, a charging control module, a current detection module, and a thermoelectric converter. The output terminal of the controller is connected to the input terminals of the charging control module and the discharging control module, respectively. The charging control module is connected to the positive terminal of the battery module, and the discharging control module is connected to the negative terminal of the battery module. The output terminal of the controller is connected to the input terminal of the current detection module, and the output terminal of the current detection module is connected to the charging control module, the discharging control module, and the battery module, respectively. The output terminal of the thermoelectric converter is connected to the input terminal of the controller. The heat energy generated by the charging and discharging of the battery module is converted into electrical energy by the thermoelectric converter and supplies power to the controller.

[0006] After the controller transmits the charging test signal to the charging control module, the charging control module controls the battery module to perform the charging task. At the same time, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the charging process. After the controller transmits the discharging test signal to the discharging control module, the discharging control module controls the battery module to perform the discharging task. At the same time, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the discharging process.

[0007] Preferably, the discharge current of the battery module during the discharge process is twice the charging current during the charging process.

[0008] Preferably, the system includes a host computer, and the controller is connected to the host computer via a signal connection. After the host computer transmits the test information to the controller, the controller controls the current detection module, the charging control module, or the discharging control module to work, thereby realizing the corresponding charging or discharging tasks of the battery module.

[0009] Preferably, the thermoelectric conversion system for heat dissipation of the indoor charging and discharging cabinet is installed in the charging and discharging cabinet, and the thermoelectric converters are distributed on the inner wall of the charging and discharging cabinet.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention converts the heat generated by the charging and discharging of the battery modules in the charging and discharging cabinet into electrical energy, thus reusing the heat energy. On the one hand, the converted electrical energy can be used by the charging and discharging cabinet, avoiding energy waste; on the other hand, by absorbing the heat energy, the temperature of the indoor testing environment is reduced, improving the accuracy and safety of battery charging and discharging tests. At the same time, it avoids the problem of the charging and discharging cabinet becoming too hot after long-term use, which makes it more prone to aging and damage, thus helping to extend the service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the working principle of this utility model; Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] See Figure 1As shown, a thermoelectric conversion system for heat dissipation in an indoor charging and discharging cabinet includes a controller, a discharging control module, a charging control module, a current detection module, and a thermoelectric converter. The output terminal of the controller is connected to the input terminals of the charging control module and the discharging control module, respectively. The charging control module is connected to the positive terminal of the battery module, and the discharging control module is connected to the negative terminal of the battery module. The output terminal of the controller is connected to the input terminal of the current detection module, and the output terminal of the current detection module is connected to the charging control module, the discharging control module, and the battery module, respectively. The output terminal of the thermoelectric converter is connected to the input terminal of the controller. The heat energy generated by the charging and discharging of the battery module is converted into electrical energy by the thermoelectric converter and supplies power to the controller.

[0015] After the controller transmits the charging test signal to the charging control module, the charging control module controls the battery module to perform the charging task. At the same time, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the charging process. After the controller transmits the discharging test signal to the discharging control module, the discharging control module controls the battery module to perform the discharging task. At the same time, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the discharging process.

[0016] The discharge current of the battery module during the discharge process is twice the charging current during the charging process. For example, the preferred discharge current during the discharge process is I1, in A, representing the 1-hour rate discharge current. The value of I1 is equal to C1. The preferred charging current during the charging process is I2, in A, representing the 2-hour rate discharge current. The value of I2 is equal to half of C1. This can be referred to in GB / T 31486-2015 "Electrical Performance Requirements and Test Methods for Power Batteries for Electric Vehicles", where C1: 1-hour rate rated capacity (Ah); I1: 1-hour rate discharge current, the value of which is equal to C1 (A).

[0017] Includes a host computer, and the controller is connected to the host computer via a signal. After the host computer transmits the test information to the controller, the controller controls the current detection module, the charging control module, or the discharging control module to work, so as to realize the corresponding charging or discharging tasks of the battery module.

[0018] The thermoelectric conversion system for heat dissipation of the indoor charging and discharging cabinet is installed in the charging and discharging cabinet, and the thermoelectric converters are distributed on the inner wall of the charging and discharging cabinet.

[0019] After the pre-set charging test steps are input to the charging controller, the controller transmits the charging test signal to the charging control module. Upon receiving the charging test signal, the charging control module starts the charging test steps and begins charging the battery module. Simultaneously, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the charging process. During the charging process, the current flows from the external power source into the battery module, with electrons flowing from the negative electrode to the positive electrode and ions flowing in the opposite direction, thus enabling the battery module to store electrical energy.

[0020] The pre-set discharge test steps are input to the controller, which then transmits the discharge test signal to the discharge control module. Upon receiving the discharge test signal, the discharge control module starts the discharge test steps and performs the discharge task on the battery pair. At the same time, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the discharge process. During the discharge process, the current flows from the battery module to the external load, and electrons flow from the positive terminal to the negative terminal, thereby providing useful electrical energy.

[0021] This invention converts the heat generated by the charging and discharging of the battery modules in the charging and discharging cabinet into electrical energy, thus reusing the heat energy. On the one hand, the converted electrical energy can be used by the charging and discharging cabinet, avoiding energy waste; on the other hand, by absorbing the heat energy, the temperature of the indoor testing environment is reduced, improving the accuracy and safety of battery charging and discharging tests. At the same time, it avoids the problem of the charging and discharging cabinet becoming too hot after long-term use, which makes it more prone to aging and damage, thus helping to extend the service life of the equipment.

[0022] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A thermoelectric conversion system for heat dissipation in an indoor charging and discharging cabinet, characterized in that: The system includes a controller, a discharge control module, a charging control module, a current detection module, and a thermoelectric converter. The output of the controller is connected to the inputs of the charging control module and the discharge control module. The charging control module is connected to the positive terminal of the battery module, and the discharge control module is connected to the negative terminal of the battery module. The output of the controller is connected to the input of the current detection module, and the output of the current detection module is connected to the charging control module, the discharge control module, and the battery module. The output of the thermoelectric converter is connected to the input of the controller. The heat energy generated by the charging and discharging of the battery module is converted into electrical energy by the thermoelectric converter and used to power the controller. After the controller transmits the charging test signal to the charging control module, the charging control module controls the battery module to perform the charging task. At the same time, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the charging process. After the controller transmits the discharging test signal to the discharging control module, the discharging control module controls the battery module to perform the discharging task. At the same time, the current detection module monitors the voltage, current, and internal resistance data parameters of the battery module in real time during the discharging process.

2. The thermoelectric conversion system for heat dissipation of an indoor charging and discharging cabinet according to claim 1, characterized in that: The discharge current of the battery module during the discharge process is twice the charging current during the charging process.

3. The thermoelectric conversion system for heat dissipation of an indoor charging and discharging cabinet according to claim 1, characterized in that: The system includes a host computer, and the controller is connected to the host computer via a signal connection. After the host computer transmits the test information to the controller, the controller controls the current detection module, the charging control module, or the discharging control module to work, thereby realizing the corresponding charging or discharging tasks of the battery module.

4. The thermoelectric conversion system for heat dissipation of an indoor charging and discharging cabinet according to claim 1, characterized in that: The thermoelectric conversion system for heat dissipation of the indoor charging and discharging cabinet is installed in the charging and discharging cabinet, and the thermoelectric converters are distributed on the inner wall of the charging and discharging cabinet.

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