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Level-1 energy-efficient flameproof asynchronous starting three-phase permanent magnet synchronous motor

An asynchronous starting, permanent magnet synchronous technology, applied to synchronous motors with stationary armatures and rotating magnets, synchronous machines, electric components, etc., can solve the problem of low efficiency, low efficiency and low power factor of flameproof three-phase asynchronous motors , low power factor, etc., to achieve the effect of wide economic operation range, high power density and high power factor

Pending Publication Date: 2019-04-16
WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GRP CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

One of the main reasons for the large power consumption is that the flameproof three-phase asynchronous motor itself has low efficiency and low power factor, and the efficiency and power factor are lower when running at low load rate

Method used

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  • Level-1 energy-efficient flameproof asynchronous starting three-phase permanent magnet synchronous motor
  • Level-1 energy-efficient flameproof asynchronous starting three-phase permanent magnet synchronous motor
  • Level-1 energy-efficient flameproof asynchronous starting three-phase permanent magnet synchronous motor

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Embodiment Construction

[0027] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] see figure 1 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, term...

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Abstract

A level-1 energy-efficient flameproof asynchronous starting three-phase permanent magnet synchronous motor comprises a flameproof shell, a stator component, and a rotating shaft equipped with a permanent magnet rotor component. The stator component is fixed in the flame-proof shell, and includes a stator core and a stator coil. The permanent magnet rotor component includes a rotor core, starting cage bars, steel magnets and a non-magnetic steel magnet pressure plate. The rotor core is formed by stacking rotor punching sheets coaxially and is fixed on the rotating shaft. The rotor punching sheets are provided with a plurality of starting cage bar installation slots and steel magnet slots distributed in a W shape. As the steel magnet slots are distributed in a W shape through a built-in magnetic circuit structure, the flameproof asynchronous starting three-phase permanent magnet synchronous motor has the advantages of both a series rotor structure and a parallel rotor structure, more steel magnets can be installed on the rotor component compared with the series and parallel magnetic circuit structures, the no-load magnetic leakage coefficient is smaller, and the integrity and mechanical strength of the rotor component are improved. The level-1 energy-efficient flameproof asynchronous starting three-phase permanent magnet synchronous motor is applicable to bad working conditions.

Description

technical field [0001] The invention relates to a flameproof permanent magnet motor, in particular to a first-class energy efficiency flameproof asynchronous start three-phase permanent magnet synchronous motor. Background technique [0002] Energy conservation and emission reduction is an unavoidable topic in today's world, which affects the development of the world economy. As the focus of energy saving and emission reduction in the industrial field, the motor system has huge potential for energy saving. Flameproof three-phase asynchronous motors are widely used in petroleum, chemical, coal and other industries. Most of the equipment is in continuous operation all year round and consumes a lot of power. One of the main reasons for the large power consumption is that the flameproof three-phase asynchronous motor itself has low efficiency and low power factor, and the efficiency and power factor are lower when operating at low load rate. In this regard, the energy laws of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/28H02K9/04H02K21/46H02K21/14H02K5/136
CPCH02K1/276H02K1/28H02K5/136H02K9/04H02K21/14H02K21/46
Inventor 肖立民刘发梅张新春李梦林郝维高重阳李静娅蒙磊玉佳彬谢超群王赫张东波王德义陈凯
Owner WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GRP CO LTD
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