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What is Air conditioner motor

What is Air conditioner motor

  • Categories:Industry News
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  • Time of issue:2021-12-10
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(Summary description)Air conditioner motor is one of the important components of air conditioner. Without Air conditioner motor, it is meaningless. Air conditioner motor consists of compressor, fan motor (axial flow fan and perfusion fan), swing air supply blade (stepper motor and synchronous motor) and other parts. To learn more about how an Air conditioner motor works, categorize and explain it in detail!

What is Air conditioner motor

(Summary description)Air conditioner motor is one of the important components of air conditioner. Without Air conditioner motor, it is meaningless. Air conditioner motor consists of compressor, fan motor (axial flow fan and perfusion fan), swing air supply blade (stepper motor and synchronous motor) and other parts. To learn more about how an Air conditioner motor works, categorize and explain it in detail!

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2021-12-10
  • Views:0
Information

Air conditioner motor is one of the important components of air conditioner. Without Air conditioner motor, it is meaningless. Air conditioner motor consists of compressor, fan motor (axial flow fan and perfusion fan), swing air supply blade (stepper motor and synchronous motor) and other parts. To learn more about how an Air conditioner motor works, categorize and explain it in detail!

Air conditioner motor

1. Single-phase asynchronous motor
Air conditioner motor single-phase compressor has two windings: start winding and operation winding (main winding), three wiring connectors, each with a common end, start end, and operation end, generally capacitor-operated drives.
From the start to the normal operation of the Air conditioner motor, the auxiliary winding circuit is always connected to the capacitor, with good electrical performance, high efficiency and power factor, and stable operation.

2. Three-phase asynchronous motor
The structure of the air conditioner motor is similar to that of the single-phase motor, but the difference is that the three-phase motor sperm is composed of three completely symmetrical windings built in the sperm core slot, which are staggered by 120 degrees in spatial distribution. The three windings of the air conditioner motor can be connected by Y type or type. When the stator winding passes three-phase symmetrical current (that is, the three-phase current is 120 degrees apart from each other in time phase), the air gap between the stator and the rotor will generate a rotating magnetic field , so that the rotor generates electromagnetic torque due to electromagnetic induction.
The three-phase asynchronous motor has a simple structure and excellent performance, and its torque, efficiency and power factor are higher than those of the single-phase asynchronous motor.

3. Frequency conversion Air conditioner motor
As long as the power frequency of the asynchronous motor is changed, different motor speeds can be obtained.
Frequency conversion regulation can not only achieve a stable speed, but also is an ideal speed regulation method with wide speed regulation range, high efficiency, fast response, small starting current, little impact on the power grid, good comfort performance and energy saving.
In particular, the heat pump air conditioner can adjust the size of the heat pump heating through frequency conversion adjustment, and is not limited by the outdoor temperature, which can greatly improve the heating capacity. Air conditioner motor inverter working process: inverter generally adopts the indirect frequency conversion (AC-direct-AC) method, including two processes of rectification and reverse conversion.
The grid current of the power frequency (50Hz) is preprocessed by the power filter and sent to the rectifier module (such as a diode rectifier bridge), and the rectified DC is directly input to the inverter module (such as the IPM module using IGBT as the basic component).
Under the driving signal of the CPU chip, the inverter module converts DC into AC power with different frequencies to supply the compressor. Air conditioner motor IPM inverter module working principle The 3360IPM module uses insulated gate bipolar transistors (IGBTs) as switching elements.
The 6 driving signals (ie IGBT base signal) sent by the CPU respectively control the blocking of the 6 IGBT switches of the three-phase inverter circuit. In each cycle, the air conditioner motor controls the interruption of each IGBT in a certain order every 60 degrees, and obtains a three-phase AC power supply with a certain frequency from the output end of the inverter circuit. By controlling the cut-off time of the IGBT switch (that is, controlling the pulse width of the positive and negative inverse cycles of each step), AC power of different frequencies can be obtained in the three-phase output part.

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