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Air gap variant eddy speed regulating induction motor and working mode

An induction motor and variable air gap technology, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve problems such as difficult installation, reduced operating efficiency, and increased manufacturing costs

Inactive Publication Date: 2009-07-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the transmission process, due to the speed regulation method of prime mover + coupling, the efficiency loss will exist in both the motor and the coupling, so the operating efficiency of the system is reduced. The presence of permanent magnets increases the manufacturing cost of the system and is not easy to install

Method used

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  • Air gap variant eddy speed regulating induction motor and working mode

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Embodiment Construction

[0015] The invention adopts a special induction motor structure, that is, an air gap adjustment component is arranged between two rotors on the output shaft. The rotor of the variable air gap eddy current speed regulation induction motor has two symmetrical pieces and is fixed on the output shaft 4, and an air gap adjustment assembly 5 is arranged between the two rotors on the output shaft 4, and the rotor includes a copper disc 2, The back yoke 3 and the copper disk 2 are located outside the rotor. The output shaft 4 can change the air gap distance between the stator 1 and the copper disk 2 by adjusting the air gap adjustment assembly 5. The stator includes windings and iron cores. The iron core is fixed on the end cover 6. The iron core is in the form of a coiled iron core, and three-phase alternating current is loaded in the winding to generate a rotating magnetic field in the air gap. The output shaft 4 can change the air gap distance between the stator 1 and the copper dis...

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Abstract

A variable air gap vortex flow speed regulating induction motor can achieve the aim of transmitting torque from an electric motor to a load by the interaction of air gap field between an electrical conductor and a winding. The variable air gap vortex flow speed regulating induction motor comprises a stator, a rotor, an air gap regulating component and the like, and is characterized in that the stator (1) comprises an iron core and the winding, wherein, the iron core is fixed on an end cover (6); the rotor includes a copper disc (2) and a back yoke (3), and is fixed on an output rotating shaft (4) which can change the air gap distance between the stator (1) and the copper disc (2) by the air gap regulating component (5); the motor adopts a disc structure, and the intensity of the air gap field can be conveniently regulated by regulating the air gap regulating component on the output rotating shaft, thus achieving the aim of regulating the rotating speed and the torque of the motor and leading the motor to start at underload and operate at full load.

Description

technical field [0001] The invention relates to a variable-air-gap eddy-current speed-regulating induction motor, which belongs to the technical field of motor manufacturing. Background technique [0002] Energy shortage and environmental pollution are common century-old problems faced by mankind. The two worldwide energy crises since the 1970s and the seriousness of the current environmental problems have aroused widespread attention from countries all over the world to energy-saving technologies. my country's energy production and consumption ranks second in the world, but it is still far from meeting the needs of industrial production and people's life development. In the case of energy shortages, the energy consumption per unit of output is too large due to the huge gap in energy conservation. , The annual energy waste is staggering. For example, a considerable part of fan and water pump loads waste a lot of electric energy due to constant speed drive. This kind of dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02H02K7/10H02K1/06
Inventor 郭健
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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