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Novel double external-cooling external rotor permanent magnet synchronous motor

A technology of permanent magnet synchronous motor and outer rotor, which can be used in electrical components, electromechanical devices, electric components, etc., and can solve problems such as poor heat dissipation effect.

Pending Publication Date: 2019-05-03
沈阳工大电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention relates to a new type of permanent magnet synchronous motor with double external cooling and outer rotor, and its purpose is to solve the problem of poor heat dissipation caused by the closed iron core inside the motor of the current similar outer rotor permanent magnet synchronous motor products

Method used

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  • Novel double external-cooling external rotor permanent magnet synchronous motor
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  • Novel double external-cooling external rotor permanent magnet synchronous motor

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Embodiment Construction

[0031] A new double external cooling and external rotor permanent magnet synchronous motor, characterized in that: the motor includes a stator base 1, a stator core 2, a rotor bracket 5, a rotating shaft 9, a protective cover 10 and a magnetic steel 12;

[0032] The rotor bracket 5 is set outside the stator base 1 and can rotate relative to the stator base 1; the protective cover 10 is set outside the rotor bracket 5 and is fixedly connected with the stator base 1;

[0033] The stator base 1 is a double-layer structure consisting of an outer casing 1-1 and an inner bearing chamber 1-2.

[0034] A stator air passage 3 is formed between the outer casing 1-1 and the inner bearing chamber 1-2, and the outer casing 1-1 and the inner bearing chamber 1-2 are connected by connecting ribs 19, and the air inlet of the stator air passage 3 extends from below to the rotor Outside the bracket 5 and the protective cover 10; the magnetic steel 12 is arranged on the inner wall of the rotor br...

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Abstract

A novel double external-cooling external rotor permanent magnet synchronous motor comprises a stator base 1, a stator core winding 2, a rotor bracket 5, magnetic steel 12, a rotating shaft 9 and a protective cover 10. The novel double external-cooling external rotor permanent magnet synchronous motor is characterized in that an inner stator base sheath is integrally connected with an inner bearingchamber by means of axial radiating ribs, a space between the radiating ribs along the axial direction of the sheath is through and forms a stator ventilation channel, heat of the stator can be takenaway by means of ventilation of the stator ventilation channel and convection cooling air (a wind flow direction is indicated by the arrow in FIG. 1), and the problem of difficult internal stator heat dissipation is solved.

Description

technical field [0001] The invention relates to a permanent magnet synchronous motor, in particular to a novel double external cooling and outer rotor permanent magnet synchronous motor. Background technique [0002] At present, the rotor part of the domestic low-speed high-torque external rotor permanent magnet synchronous motor wraps the entire stator structure inside, and the stator is in a state of being closed by the rotor; the rotor part and the motor load are connected at one time through the motor shaft, and the motor must be maintained during maintenance. Disassemble the motor as a whole; [0003] Problems and shortcomings of the existing technical solutions: the stator of the motor is completely wrapped by the rotor, and the stator of the motor cannot directly dissipate heat from the outside by air convection. The inability to dissipate heat leads to serious heating of the motor, resulting in increased volume of the motor, increased material consumption, and incre...

Claims

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Application Information

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IPC IPC(8): H02K1/20H02K9/04
Inventor 赵英周美文马俊芳
Owner 沈阳工大电机有限公司