Air conditioning motor manufacturing solutions

Air conditioning motor structures involve many types, including single-phase asynchronous motors, three-phase asynchronous motors and variable frequency motors. Each type of motor has its own specific structure and working principle to meet the different needs of air conditioning systems.

Single-phase asynchronous motors are mainly used to drive air conditioning compressors and have two windings: starting winding and running winding (main winding). This type of motor usually adopts capacitor-operated drive to achieve constant speed control. In the process from motor start to normal operation, the auxiliary winding circuit is always connected in series with a capacitor to ensure good electrical performance, improve efficiency and power factor, and ensure work reliability.

The structure of the three-phase asynchronous motor is similar to that of the single-phase motor, but the stator consists of 3 sets of completely symmetrical windings, which are staggered by 120° electrical degrees in space. The three-phase asynchronous motor has a simple structure, excellent performance, high torque, efficiency and power factor, and is suitable for air conditioners with larger power, such as cabinet air conditioner compressors.

The variable frequency motor adjusts the motor speed by changing the power supply frequency, providing a smooth speed regulation range and high efficiency. The variable frequency speed regulation method is suitable for heat pump air conditioners. It improves the heating capacity by controlling the heating capacity of the heat pump, and is not limited by the outdoor temperature. The working process of the inverter includes two stages: rectification and inversion. The power grid current is converted into direct current, and then converted into alternating current of different frequencies to supply the compressor.

In addition, air conditioning motors also include brushless motors, and their structural examples include inner rotor type, outer rotor type and fan integrated type. Brushless motors use electronic commutators instead of traditional mechanical commutators to improve the efficiency and reliability of the motor. This type of motor is usually used in applications that require high-speed rotation and high efficiency

Classification of air conditioning motors

Air conditioning motors can be classified according to their working mode and structural form, mainly including:

PG motor (speed regulating motor): mainly used to adjust the wind speed or air volume of the air conditioner, control the speed of the indoor fan to achieve temperature regulation and comfort control. This type of motor is usually located inside the indoor unit, and automatically adjusts the speed according to the working mode and temperature setting of the air conditioning system to achieve more efficient air conditioning operation.

Tap motor (valve motor): used to control the flow of refrigerant in the air conditioning system to achieve temperature regulation and cooling effect. Usually located inside the outdoor unit or indoor unit, it is used to control the opening and closing of the refrigerant valve to adjust the flow of refrigerant to different condensers or evaporators.

Classification by speed: air conditioning motors can be divided into high-speed motors and low-speed motors according to speed. High-speed motors generally have a speed of more than 5000 rpm, with higher operating efficiency, but relatively loud noise; low-speed motors generally have a speed of less than 5000 rpm, with lower noise, but lower operating efficiency.

Classification by cooling method: air conditioning motors can be divided into water-cooled and air-cooled according to cooling method. Water-cooled motors use cooling water for cooling, while air-cooled motors use air for cooling. Water-cooled motors have better cooling effects, but require a cooling water system, and the installation is more complicated; air-cooled motors have relatively poor cooling effects, but are simple to install and easy to maintain.

Other types: also include roller compressor motors, rotary compressor motors, centrifugal fan motors, axial fan motors, and reversing electromagnets, etc. These types are selected and applied according to different usage scenarios and needs in air-conditioning equipment.

Ningbo Nide Mechanical Equipment Co., Ltd., was established in 2010, committing to provide customers with highly automated, intelligent, and flexible motor manufacturing solutions, and focusing on the production line of stator, rotor and final assembly of various motors.

We have provided customers with a variety of air-conditioning motor automation manufacturing solutions, including air-conditioning motor automatic production line, motor stator and rotor assembly line, air-conditioning motor stator production line, single-phase motor winding machine, stator wire binding machine, stator shaping machine, motor rotor production line, rotor shafting machine, rotor winding machine, etc. to meet customers' high-efficiency and low-manpower motor manufacturing needs.