Electric automobile air conditioner refrigeration system

Abstract

The invention belongs to the technical field of electric automobile air conditioners, and specifically relates to an electric automobile air conditioner refrigeration system. The electric automobile air conditioner refrigeration system comprises a motor compressor assembly, a condenser and an evaporator, which are connected in series in sequence; the motor compressor assembly comprises a motor, a compressor controller connected with the motor, and a control module for controlling rotating speed of the motor; the control module comprises a master control single-chip computer, a temperature control single-chip computer, an analog-digital converter and a thermistor which are connected in series in sequence, and the master control single-chip computer is connected with the motor; the thermistor is arranged on an air suction port of a compressor, the temperature of refrigerant is sensed after heat exchanging of the evaporator through the thermistor to adjust the rotating speed of the motor, and thus a constant temperature effect of refrigeration of the electric automobile air conditioners is controlled; and according to the electric automobile air conditioner refrigeration system, the structure is simple and reliable, the number of signal collectors is small, precision is high, and the temperature can be controlled to be constant.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle air conditioners, and specifically refers to an electric vehicle air conditioner refrigeration system. Background technique [0002] With the rapid development of electric vehicles, electric vehicle air conditioners have also ushered in unprecedented development opportunities. The existing refrigeration and air conditioning systems have three modes: CAN, PWM and MI, but the disadvantages of these modes are complex structure, high cost, and signal collectors If there are too many, the constant temperature in the car cannot be effectively maintained, and if there are too many signal collectors, the signal error of the components will be large, the accuracy will be small, and the failure rate will be high. Contents of the invention [0003] In order to overcome the defects in the prior art, the object of the present invention is to provide an electric vehicle air conditioning and refrigera...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of electric vehicles, electric vehicle air conditioners have also ushered in unprecedented development opportunities. The existing refrigeration and air conditioning systems have three modes: CAN, PWM and MI, but the disadvantages of these modes are complex structure, high cost, and signal collector If there are too many, the constant temperature in the car cannot be effectively maintained, and if there are too many signal collectors, the signal error of the component will be large, the accuracy will be small, and the failure rate will be high

Images