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High-efficiency three-phase asynchronous variable-frequency variable-speed motor

A three-phase asynchronous, frequency conversion speed regulation technology, applied in the direction of asynchronous induction motors, electric components, electromechanical devices, etc., can solve the problems of shortened motor life, slow fan speed, poor energy saving effect, etc., to achieve stable electromagnetic field and stable operation smooth effect

Active Publication Date: 2019-02-01
GUANGXI ZHENGYUAN ELECTRICAL MACHINE
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Three-phase asynchronous motors for frequency conversion and speed regulation have been widely used in many fields, but the existing three-phase asynchronous motors for frequency conversion and speed regulation are not effective in energy saving, and do not meet the requirements of GB / T4942-1-2006 on energy saving and emission reduction of motors. Moreover, the fan inside the existing three-phase asynchronous motor dedicated to frequency conversion and speed regulation is mainly installed on the motor shaft. When the rotation frequency of the motor shaft decreases, this may cause the speed of the fan to slow down, and the heat dissipation effect will also deteriorate. , if the heat dissipation effect is poor for a long time, the life of the motor as a whole will be shortened

Method used

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  • High-efficiency three-phase asynchronous variable-frequency variable-speed motor

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Embodiment Construction

[0017] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0018] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0019] figure 1 A schematic structural diagram of a high-efficiency three-phase asynchronous variable-frequency variable-speed motor according to a preferred embodiment of the present invention is shown. Such as figure 1 As shown, the high-efficiency three-phase asynchronous frequency conversion speed regulating motor includes: left end cover 3, right end cover 4, frame 1, stator 7, rotor 6, rotor shaft 5, frequency conve...

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Abstract

The invention discloses an efficient three-phase asynchronous variable-frequency speed regulating electric motor which comprises a left end cap, a right end cap, a motor base, a stator, a rotor, a rotor shaft, a frequency changer, a fan, a fan over and a cooling system. The efficient three-phase asynchronous variable-frequency speed regulating electric motor can effectively decrease motor heat by adding the individual fan and an air outlet groove which can be matched with the fan to increase air flows at the end of the right end cap and accordingly can be kept operating in a normal working state. The added cooling system can spray out liquid-state heptafluoropropane to rapidly reduce the motor temperature when the special situation of rapid rise of the motor temperature occurs. A wavy wire winding slot is adopted so that electromagnetic fields of the stator and the rotor can be more stable, and motor operation can be more stable.

Description

technical field [0001] The invention relates to the field of variable-frequency speed-regulating motors, in particular to a high-efficiency three-phase asynchronous frequency-variable speed-regulating motor. Background technique [0002] Three-phase asynchronous motors for frequency conversion and speed regulation have been widely used in many fields, but the existing three-phase asynchronous motors for frequency conversion and speed regulation are not effective in energy saving, and do not meet the requirements of GB / T4942-1-2006 on energy saving and emission reduction of motors. Moreover, the fan inside the existing three-phase asynchronous motor dedicated to frequency conversion and speed regulation is mainly installed on the motor shaft. When the rotation frequency of the motor shaft decreases, this may cause the speed of the fan to slow down, and the heat dissipation effect will also deteriorate. , if the heat dissipation effect is poor for a long time, the life of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K17/12H02K1/26H02K5/20H02K9/04H02K9/20
CPCH02K1/26H02K5/20H02K9/04H02K9/20H02K17/12
Inventor 刘海东杜飚黎顺平李红梅暴伟军胡全信方能福
Owner GUANGXI ZHENGYUAN ELECTRICAL MACHINE