Fan motor speed adjusting device, fan with same and fan motor

A technology for fan motors and speed control devices, which is applied in the field of fans, fan motors, and fan motor speed control devices, and can solve problems such as unfavorable maintenance, complex circuit structure, and high cost

CN104467623AInactive Publication Date: 2015-03-25陈伟禧
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2015-03-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a fan motor speed adjusting device, a fan with the fan motor speed adjusting device and a fan motor. The fan motor speed adjusting device comprises a switch control circuit, a speed adjusting circuit and a starting circuit. According to the fan motor speed adjusting device, firstly, the torque force of the motor is determined through the phase shifting effect of a starting capacitor in the starting circuit, and then the speed of the motor is adjusted through the speed adjusting circuit. The starting capacitor shares voltage with the motor and relieves impacting force of current on the motor, and therefore fluctuation is greatly reduced when the current torque force of the motor is stable. According to the fan motor speed adjusting device, the fan with the fan motor speed adjusting device and the fan motor, the advantages of an electronic speed adjusting method and the advantages of a capacitor speed adjusting method are combined, and on the premise that it is guaranteed that each speed adjusting gear can obtain maximum torque force generated by a motor winding, the motor is intelligently controlled through electronic speed adjustment; thus, impacting force of current on the motor is relieved, the current torque force of the motor can be stable, the service life of the motor is prolonged, and aging of all devices is relieved; the circuit structure is simple, and maintenance is convenient.
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Description

technical field

[0001] The invention relates to the field of motor speed regulation, in particular to a fan motor speed regulation device, a fan and a fan motor using the device. Background technique

[0002] The motor of the fan is an AC motor, and its working principle is: the rotation is realized by the force of its energized coil in the magnetic field. The speed of the AC motor is different, and the air volume generated is also different. In order to make the air volume generated by the fan meet the requirements of people in different environments, it is necessary to regulate the speed of the fan motor. In the prior art, the speed of the motor of the fan is generally adjusted by the following methods:

[0003] (1) Tap method: Since the motor with tap speed regulation has a main winding, an intermediate winding and an auxiliary winding; the tap method uses taps to reduce the winding voltage of the motor, thereby weakening the magnetic field strength to achieve speed regu...

Examples

Embodiment Construction

[0023] The invention provides a fan motor speed regulating device and a fan motor and a fan using the device. The fan motor speed control device of the present invention combines the advantages of the electronic speed control method and the capacitor speed control method, and ensures that the maximum torque force generated by the motor winding is obtained at each speed control gear, and then through the electronic speed control Intelligent control of the motor; thereby slowing down the impact of the current on the motor, making the current torque of the motor in a stable state, prolonging the service life of the motor and slowing down the aging of various components; and its circuit structure is simple and easy to maintain .

[0024] The fan of the present invention includes a casing and a fan motor arranged in the casing.

[0025] The fan motor includes a motor, a fan motor speed regulating device and fan blades. The input end of the motor is electrically connected to the s...