Lithium battery energy storage efficient heat management unit

Abstract

The invention discloses a lithium battery energy storage efficient heat management unit. The unit comprises a box body; a three-way two-position electromagnetic valve A and a three-way two-position electromagnetic valve B are installed in the box body; a first valve port of the three-way two-position electromagnetic valve A and a third valve port of the three-way two-position electromagnetic valve B are both connected with a shell-and-tube condenser through an anti-freezing solution pipeline; a second valve port of the three-way two-position electromagnetic valve A and a fourth valve port of the three-way two-position electromagnetic valve B are both connected with a low-temperature radiator through an anti-freezing solution pipeline; the other valve port of the three-way two-position electromagnetic valve A is connected with the input end of a water pump through an anti-freezing solution pipeline; the other valve port of the three-way two-position electromagnetic valve B is connected with the output end of the water pump through an anti-freezing solution pipeline; the other end of the low-temperature radiator is connected with a plate heat exchanger through an anti-freezing solution pipeline. The opening and closing of the corresponding valves ports of the three-way two-position electromagnetic valve A and the three-way two-position electromagnetic valve B and the startup and stop of the water pump are controlled, so that an anti-freezing solution in the management unit can be changed, and therefore, a refrigeration mode and a heating mode can be achieved.

Description

technical field [0001] The invention relates to the technical field of power battery equipment, in particular to a high-efficiency thermal management unit for lithium battery energy storage. Background technique [0002] With the rise of new energy electric vehicles, for the core components of new energy electric vehicles, the development of power batteries and the improvement of use efficiency are the focus of related industries. The development of power batteries is particularly rapid, but in the process of development, The cooling and heating of the power battery is particularly prominent, because it involves the efficiency of its charge and discharge. At present, the best working temperature of the lithium battery power battery is 20 ~ 45 ℃, so the lithium battery must be tested in different environments. Different treatment, the power battery needs to be cooled in the hot summer, it only needs to be properly cooled in spring and autumn, and it needs to be heated in the ...

AI Technical Summary

Problems solved by technology

[0002] With the rise of new energy electric vehicles, for the core components of new energy electric vehicles, the development of power batteries and the improvement of use efficiency are the focus of related industries. The development of power batteries is particularly rapid, but in the process of development, The cooling and heating of the power battery is particularly prominent, because it involves the efficiency of its charge and discharge. At present, the best working temperature of the lithium battery power battery is 20 ~ 45 ℃, so the lithium battery must be tested in different environments. Different treatment, the power battery needs to be cooled in the hot summer, it only needs to be properly cooled in spring and autumn, and it needs to be heated in the cold winter, so it needs to be upgraded and changed in the cooling system of the power battery , but in the current industry, traditional lithium battery packs mainly use a single compressor refrigeration system for refrigeration. This refrigeration method is relatively simple, and there will be inability to cool according to different environmental problems, and there will be waste of energy consumption. , and if you need to use the heating function, you must increase the PTC heater, which will increase the production cost

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