Direct-current brushless variable frequency air conditioner control circuit

A frequency conversion air conditioner and control circuit technology, applied in the control system, electronic reversing motor control, multiple motor speed/torque control, etc., can solve the problems of low motor efficiency, unstable operation, high motor cost, etc., and achieve energy saving costs , cost reduction effect

Active Publication Date: 2012-02-22
SHENZHEN MCQUAY AIR CONDITIONING
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  • Abstract
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Problems solved by technology

Among them, the AC motor has only three speeds of high, medium and low, so the efficiency of the motor is relatively low, so it is not outstanding in terms of energy saving.
While the brushless DC motor with sensor has high operating efficiency, but the cost of this type of motor is high, and the operation is unstable at high temperature
Brushless DC motors without sensors are widely used in medical equipment, instrumentation, air conditioning and other fields because of their cheap price, stable operation, high efficiency, energy saving, and easy installation. complex

Method used

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  • Direct-current brushless variable frequency air conditioner control circuit
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  • Direct-current brushless variable frequency air conditioner control circuit

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Embodiment Construction

[0020] The technical solution of the present invention will be further described in detail below in conjunction with the embodiments.

[0021] Such as figure 1 and figure 2 As shown, the DC frequency conversion air conditioner control circuit of the present invention is composed of a switching power supply module, a DC motor drive module and a main control board module. The switching power supply module is respectively connected to the DC motor drive module and the main control board module. Connect the DC motor drive module, through these three modules, the stepless adjustment of the DC brushless inverter air conditioner can be realized, so that the main control board can detect the indoor temperature through the indoor temperature sensor, and control the speed of the motor according to the temperature value, which is more convenient than ordinary The three-speed (high, medium and low speed) fan is more energy-saving and environmentally friendly, with stable operation, hig...

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Abstract

The invention discloses a direct-current brushless variable frequency air conditioner control circuit by which effective control over a motor is realized and the reliability is improved. The invention adopts the following technical scheme that: the direct-current brushless variable frequency air conditioner control circuit consists of a switching power supply module, a direct-current motor driving module and a main control board module, wherein the switching power supply module is connected with the direct-current motor driving module and the main control board module respectively; and the main control board module is connected with the direct-current motor driving motor. Compared with the prior art, a direct-current motor of a direct-current brushless variable frequency air conditioner is controlled by the switching power supply module, the direct-current motor driving module and the main control board module, so energy is saved and the cost of a product is reduced; a problem that the conventional air conditioner always blows cold and hot air is solved; and an effect of saving energy is achieved effectively.

Description

technical field [0001] The invention relates to an air conditioner, in particular to a DC variable frequency air conditioner control circuit applied to the air conditioner. Background technique [0002] At present, the motors commonly used in the industrial field are: AC motors, brushless DC motors with sensors and brushless DC motors without sensors. Among them, the AC motor has only three speeds of high, medium and low, so the efficiency of the motor is relatively low, so it is not outstanding in terms of energy saving. While sensor-equipped brushless DC motors operate efficiently, but this type of motor is expensive and unstable at high temperatures. Brushless DC motors without sensors are widely used in medical equipment, instrumentation, air conditioning and other fields because of their low price, stable operation, high efficiency, energy saving, and easy installation. complex. Contents of the invention [0003] The purpose of the present invention is to provide a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/00H02P6/04
Inventor 林华俤孙建峰雷勇罗炽学刘争明倪健付洪钢王信重
Owner SHENZHEN MCQUAY AIR CONDITIONING
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