Motor used for saving energy

A motor and circuit board technology, applied in the field of motors, can solve the problems of large no-load current, poor frequency conversion performance, and poor energy-saving effect of the motor, and achieve the effects of improving the winding coefficient, improving the electrical rush density, and saving energy.

Inactive Publication Date: 2018-11-23
重庆环马电机制造有限公司
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Problems solved by technology

[0002] The existing three-phase asynchronous motors all adopt frequency conversion speed regulating mechanism, but the existing frequency conversion three-phase asynchronous motors are prone to resonance phenomenon, which affects normal use
Therefore, the technical problem of poor frequency conversion performance of the three-phase asynchronous motor in the prior art
[0003] Moreover, the stator windings of motors in the prior art are usually in the form of double-layer windings. The double-layer windings make the no-load current of the motor larger and the energy-saving effect is poor.

Method used

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Embodiment Construction

[0018] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0019] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The invention provides a motor used for saving energy, comprising a shell, a stator, a rotor, a rotor shaft, a front end cover, a rear end cover, a cooling fan, a fan housing, a variable frequency control device and a circuit board, the cooling fan is an axial flow fan and fixed on the rotor shaft; the circuit board is arranged on the rear end cover, and the fan housing covers the rear end cover;the stator adopts a single and double layer compound winding, and a neutral point of the single and double layer compound winding is grounded by virtue of a capacitor and a resistor which are connected in series; and the capacitor and the resistor are arranged on the circuit board. Interaction among electric phase lines of the single and double layer hybrid winding can effectively reduce magneticflux density of an iron core, a no-load current of the motor is reduced, a winding coefficient is increased, and electric emergency rehabilitation density of coils is improved, thus output of the motor is improved, current of the motor is increased, and the no-load current of the motor is reduced. The no-load current of the motor can be reduced to about 5-20%, and the effect of saving energy is achieved while national standards are met.

Description

technical field [0001] The invention relates to the field of electric motors, in particular to an electric motor for energy saving. Background technique [0002] The existing three-phase asynchronous motors all adopt frequency conversion speed regulating mechanism, but the existing frequency conversion three-phase asynchronous motors are prone to resonance phenomenon, thus affecting normal use. Therefore, there is a technical problem that the frequency conversion performance of the three-phase asynchronous motor in the prior art is poor. [0003] Moreover, the stator winding of the motor in the prior art is usually in the form of a double-layer winding, and the double-layer winding makes the no-load current of the motor larger and the energy saving effect is poor. Contents of the invention [0004] The technical problem to be solved by the embodiments of the present invention is to provide an energy-saving motor, which is used to improve the frequency conversion performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/33H02K9/06H02K3/28
CPCH02K9/06H02K3/28
Inventor 段辉明
Owner 重庆环马电机制造有限公司
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