Stepless speed regulation winding three-phase asynchronous motor can be used.
Application number/patent number: 99 1 1550 1
The invention comprises three sets of motors and a double-motor series motor. The triple nested motor consists of an outer stator, a rotatable inner stator and a male rotor between them. The dual-motor motor is composed of a main motor and an adjusting motor with a movable stator in series, and the two rotors rotate synchronously. The Y-connected three-phase frequency-sensitive winding formed by conductor connection with sleeve arranged on the rotor yoke is connected with the Y-connected main motor rotor winding and the regulating motor rotor winding. Another structure is that in the rotor slot of the motor, a composite coil composed of two sub-coils with different turns connected in parallel in the same slot is connected in series to form a Y-connected winding, and the two Y-connected windings are connected correspondingly. In the invention, carbon brushes and slip rings are eliminated, frequency-sensitive windings are implicitly distributed, and the speed regulation performance of the product is good.
Date of application:1July 29, 999.
Open day: 20065438+0 February 2007.
Date of authorization announcement:
Applicant/patentee: Hunan Huada Electric Power Technology Industry Co., Ltd.
Applicant's address: Block B, Building KLOC-0/2, Packaging Building, No.408 Shaoshan North Road, Changsha City, Hunan Province.
Inventor: Liao
Patent agency: Changsha Zhengqi Patent Office Co., Ltd.
Agent: Ma Qiang
Patent type: invention patent
Classification number H02K 16/04