Constant temperature system for lithium battery of electric vehicle

Abstract

A constant temperature system for a lithium battery of electric vehicle disclosed by the present invention comprises a mounting bottom plate and a safety box, the top of the mounting bottom plate is provided with a heat preservation box body, the inner bottom wall of the heat preservation box body is provided with a rectangular insulation bottom plate, the top of the insulation bottom plate is provided with a lithium battery body, and the top of the lithium battery body is provided with a detection disc. The inner walls of the two sides of the heat preservation box body are both provided with heat preservation counterweight boxes, the inner bottom wall of the heat preservation box body is provided with an embedding groove, the embedding groove is internally provided with a heat preservation door frame, the inner bottom wall of the heat preservation box body is provided with a safety box, and the top of the lithium battery body is provided with a detection disc. By arranging the heat preservation door frame, after embedded installation, a space exists between the heat preservation door frame and the top of the heat preservation box body, heat dissipation operation in the heat preservation box body is facilitated, meanwhile, a space for blocking operation is provided for subsequent heat preservation and heating operation, and then a constant-temperature environment is provided for the lithium battery body.

Description

technical field [0001] The invention relates to the technical field of battery constant temperature equipment, in particular to an electric vehicle lithium battery constant temperature system. Background technique [0002] With the popularization and use of fuel vehicles, a large amount of exhaust gas emitted by them will have a negative impact on environmental pollution, while electric vehicles use electricity as the driving source, which can reduce the use of fuel and gas, and then reduce exhaust emissions. It is environmentally friendly, out of environmental protection and From the perspective of energy protection, in recent years, the promotion scope of electric vehicles has been gradually expanded. As the power source supply equipment of electric vehicles - lithium batteries, a constant temperature protection device is needed to maintain the temperature of the battery from being too high or too high when it is working. Low state, in order to maintain the normal power co...

AI Technical Summary

Problems solved by technology

[0004] 1. The comparative document CN108258163A discloses a battery incubator, which "comprises: an intelligent control and fixing device, a device shell, a controller, a fixed handle, a mounting frame, tempered glass, a protective door, and a fixed base. The fixed base is located at the bottom of the device shell. At the same time, the lower surface and the device shell are fixed by welding to form an integrated structure. The intelligent control and fixing device is located inside the device shell and is fixedly connected with the device shell. The protective door is movably installed on the front surface of the device shell. Together with the device shell, the fixed handle is fixed and installed on the left side of the protective door by welding and is parallel to the installation frame, so that the battery placed inside can be more conveniently fixed when the incubator is working. At the same time, it can make the device use the function of rotation to install more batteries, and it can be more convenient to take out damaged batteries, so as to achieve the purpose of making the device more perfect", but the device cannot be used according to the external environment. The temperature achieves corresponding temperature changes. In order to ensure that the battery is in a constant temperature state so that the battery can consume power normally, it is necessary to use a constant temperature box all the time, resulting in high cost of constant temperature;

[0005] 2. The comparative document CN105932183A discloses a constant-temperature heat preservation bag for a lithium battery of an unmanned aerial vehicle, "including a heat preservation bag body, a temperature acquisition system, a heating system and a main control system. The foldable shape is characterized by a cube or cuboid heat preservation structure, and a microcontroller is used to collect data from multiple temperature sensors, and the temperature of the device can be adjusted at room temperature by controlling the working state of the heating wire." However, when the thermostat is in use, it cannot achieve multiple Group splicing, so that the power supply of the electric equipment powered by this battery thermostat is limited when using this thermostat;

The present invention is simple in structure and easy to use. When the cooling fan is in a vertical state, the inside of the cabinet can be radiated heat through the cooling fan. The wind direction of the cooling fan can be changed. Jet holes for heat dissipation, and PLC intelligent control to maintain the internal temperature of the control cabinet at a basically constant state, it is worth promoting", but when the device is working, it cannot eliminate the static charge inside the device in time, resulting in the electrostatic charge attached to the battery surface, which is easy to use Threats to battery safety

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