Power battery with low-temperature resistance, long service life and high performance

Abstract

The invention discloses a power battery with low-temperature resistance, long service life and high performance. The power battery comprises an outer frame; the outer surface of the outer frame is coated with a composite layer; an air pump is arranged on one side of the outer frame; the output end of the air pump is fixedly connected with an air outlet pipe; an air duct fixedly connected with theinner wall of the outer frame is arranged at one end of the air outlet pipe; an electric heating wire is fixedly connected with the inner wall of the air duct; a guide plate is fixedly connected withthe inner top wall of the outer frame; a motor is arranged on one side of the top of the outer frame; fan blades are fixedly connected with the output end of the motor; and wind shields fixedly connected with the inner top wall of the outer frame are installed outside. According to the power battery with low-temperature resistance, long service life and high performance, the air pump and the electric heating wire are arranged; when the power supply capacity of the power battery body is sharply reduced in a low-temperature environment, the air pump blows away heat of the electric heating wire,so that the temperature around the electric heating wire is not too high, and the temperature of the whole outer frame is increased; hot air is blown to the inner bottom wall of the outer frame by arranging the motor and the fan blades; and the peripheries of the fan blades are sealed by the wind shields to prevent eddy current.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a power battery with low temperature resistance, long service life and high performance. Background technique [0002] The power battery is the power source that provides the power source for the tool. It mostly refers to the battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. It is mainly different from the starter battery used for starting the car engine. Valve-port sealed lead-acid batteries, open tubular lead-acid batteries and lithium iron phosphate batteries are mostly used. [0003] Traditional automobile engines emit a large amount of exhaust gas during operation, which leads to serious air pollution in cities. As people pay more and more attention to the environment, the development of electric vehicles and the use of clean energy have become the development direction of urban transportation systems. At present...

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a power battery with low temperature resistance, long service life and high performance, which has the advantages of good power supply capacity in cold environments, and solves the problem that forced cooling is not conducive to the operation of electric vehicles in cold conditions. question of zone or season

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