一种用于空调器的直流打水电机系统
By combining a DC brushless motor with a MOSFET Q5 drive module, the problems of low energy efficiency, high noise, easy corrosion, and inaccurate control in the water pump motor system of air conditioners are solved, achieving high-efficiency, low-noise, and precise control, which is suitable for the lightweight design of portable air conditioners.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHIGE AIR CONDITIONING CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing air conditioner water pump motor systems suffer from low energy efficiency, severe noise pollution, easy corrosion and failure, insufficient control precision, and low integration of drive circuits. They are particularly difficult to meet the requirements of lightweight and high-efficiency operation in portable air conditioners.
The drive module combines a brushless DC motor with a MOSFET Q5, and forms an RC spike absorption circuit with a clamping diode D8, a capacitor C12 and a resistor R24. The integrated control unit 3 achieves efficient driving, multiple protections and precise control, and realizes closed-loop control through PWM speed regulation and overcurrent protection logic.
It achieves high-efficiency drive, reduces power consumption by more than 30%, and has a noise level of ≤45dB. It avoids motor back electromotive force breakdown, improves control accuracy and system reliability, and meets the needs of miniaturized equipment.
Smart Images
Figure CN224520878U_ABST
Abstract
Claims
1. A DC water pumping motor system for an air conditioner, characterized in that: The system includes a brushless DC motor (1), a drive module (2), and a control unit (3). The drive module (2) includes a cutoff diode D7, a clamping diode D8, a first capacitor C12, a first resistor R24, a MOSFET Q5, a second resistor R25, and a third resistor R26. The anode of the cutoff diode D7 is connected to a preset external power supply. The cathode of the cutoff diode D7 is connected to the cathode of the brushless DC motor (1), the clamping diode D8, and one end of the first capacitor C12. The drain D of the MOSFET Q5 is connected to the anode of the brushless DC motor (1), the clamping diode D8, and one end of the first resistor R24. The gate G of the MOSFET Q5 is connected to the signal interface DS of the control unit (3) via the second resistor R25. The source S of the MOSFET Q5 is connected to the monitoring interface IDS of the control unit (3) via the third resistor R26. The other end of the first capacitor C12 is connected to the other end of the first resistor R24.
2. The direct-current water-pumping motor system for an air conditioner according to claim 1, characterized by: It also includes a second capacitor C13, a fourth resistor R27 and a fifth resistor R28. The source S of the MOS transistor Q5 is also connected to one end of the second capacitor C13, one end of the fourth resistor R27 and one end of the fifth resistor R28, respectively. The other end of the second capacitor C13, the other end of the fourth resistor R27 and the other end of the fifth resistor R28 are grounded.
3. The direct current water punching motor system for an air conditioner according to claim 1, wherein: It also includes a third capacitor C1, the cathode of the cutoff diode D7 is connected to one end of the third capacitor C1, and the other end of the third capacitor C1 is grounded.
4. The direct current water punching motor system for an air conditioner according to claim 1, wherein: The control unit (3) is a microcontroller.