Voltage and speed regulating controller for single-phase asynchronous motor and air-conditioner using the same

A single-phase asynchronous motor, voltage regulation and speed regulation technology, applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of large noise, inconvenience, high cost, etc., and achieve reliability, noise reduction, and convenient operation Effect

Active Publication Date: 2007-02-28
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

However, most of the existing single-phase asynchronous motors generally cannot be adjusted in speed, and it is not convenient to cooperate with the equipment reasonably.
For example, in the existing air conditioning system, the indoor fan can only operate at fixed high, medium and low wind speeds, and the range of speed variation is small. The heat transfer of the exchanger cannot be well matched, which affects the reliability and stability of the u

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  • Voltage and speed regulating controller for single-phase asynchronous motor and air-conditioner using the same

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Embodiment Construction

[0015] In order to facilitate the introduction of the present invention, the applicant will explain the speed regulation principle of the single-phase asynchronous motor speed controller by introducing the application of the single-phase asynchronous motor voltage and speed controller in the air conditioning system.

[0016] An air conditioner includes an indoor unit and an outdoor unit, the indoor unit includes a fan, and the air conditioner also includes a controller for adjusting the pressure and speed of the fan. As shown in Figure 1, the fan voltage regulation and speed regulation controller is composed of the following parts: dial code setting part 1, voltage transformation and rectification circuit 2, power supply zero point detection circuit 3, thyristor conduction angle adjustment circuit 4 , SCR driving circuit 5 . The voltage and speed regulating controller adjusts the conduction angle of the thyristor by adjusting the trigger time of the 555 timer of the thyristor ...

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Abstract

The invention relates to a voltage-adjustable speed-adjustable controller of single-phase asynchronous motor. Wherein, said controller is formed by dial code setter, voltage-variable rectifying circuit, power zero detecting circuit, controllable silicon connection angle adjustable circuit, and controllable silicon driving circuit; said controller can based on the need of device adjust the voltage of motor to adjust the rotation speed of fan. The invention adjusts the trigger time of 555 timers to adjust the connecting angle of controllable silicon, and uses theory of chopped wave circuit to adjust the driving voltage of fan, to adjust the wind speed, to realize stepless speed adjustment. The invention has the advantages that it can stepless adjust the speed of fan, to reduce the noise and cost of indoor machine of air conditioner.

Description

technical field [0001] The invention relates to the field of motor speed regulation control, in particular to a single-phase asynchronous motor voltage regulation and speed regulation controller. The invention also relates to an air conditioner using a single-phase asynchronous motor voltage and speed regulation controller. Background technique [0002] Single-phase asynchronous motors are widely used, and the one we are most familiar with is used in air conditioners. However, most of the existing single-phase asynchronous motors generally cannot be adjusted in speed, and it is not convenient to cooperate with the equipment reasonably. For example, in the existing air conditioning system, the indoor fan can only operate at fixed high, medium and low wind speeds, and the range of speed variation is small. The heat transfer capacity of the exchanger cannot be well matched, which affects the reliability and stability of the unit operation, so the indoor unit often makes a lot...

Claims

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Application Information

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IPC IPC(8): H02P27/02
Inventor 谭建明谭泽汉谢涌泉
Owner GREE ELECTRIC APPLIANCES INC
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