Outer rotor type motor and outdoor unit having the same

A technology of external rotor and motor, which is applied in the field of outdoor units of air conditioners, and can solve problems such as inability to rotate the rotor and damage to the external rotor motor

Inactive Publication Date: 2009-09-16
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, sand is placed in the air gap between the stator and rotor, preventing the rotor from spinning and damaging the outer rotor motor

Method used

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  • Outer rotor type motor and outdoor unit having the same
  • Outer rotor type motor and outdoor unit having the same
  • Outer rotor type motor and outdoor unit having the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0049] In the outer rotor type motor according to the first embodiment, the bracket is integrally formed on the outer circumferential surface of the lower cover. However, in the outer rotor type motor according to the second embodiment, an additional support bracket is assembled to the outer circumferential surface of the lower cover.

[0050] as in Figure 7 and Figure 8 As shown in , the outer rotor type motor according to the second embodiment includes: a support bracket fixed to a position where the outer rotor type motor is to be installed; a lower cover 10 coupled to the support bracket 70 and having an inner space; coupled to the lower cover 10 and close the upper cover 20 of the inner space of the lower cover 10; the stator 30 fixedly installed in the inner space of the lower cover 10; the rotor 40 placed on the outer peripheral surface of the stator 30 in a rotatable manner; and coupled to the rotor 40 The center of the rotating shaft 50 thereby transmitting the ro...

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PUM

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Abstract

An outer rotor type motor comprises: a lower housing having a plurality of integral brackets or an additional supporting bracket; an upper housing coupled to the lower housing, and forming a closed inner space together with the lower housing; a stator fixedly-installed at the inner space of the lower housing; a rotor rotatably disposed on an outer circumferential surface of the stator; and a rotation shaft coupled to the center of the rotor for transmitting a rotational force. Foreign materials are prevented from being sucked into the outer rotor type motor, thereby enhancing a stability of the outer rotor type motor. Furthermore, since heat radiating fins are disposed at the lower housing and the upper housing, heat emitted from the stator is effectively radiated.

Description

technical field [0001] The present invention relates to an outer rotor motor and an air conditioner outdoor unit having the outer rotor motor. Background technique [0002] As people in countries belonging to tropical regions have improved quality of life, demands on cooling devices such as air conditioners have increased. In particular, since buildings such as large restaurants or hotels have been constructed, demands for large-scale refrigeration devices or multi-type refrigeration devices have increased. Nowadays, an outdoor unit having an outer rotor type motor is widely used in large-scale or multi-type refrigerators. [0003] A stator on which coils are wound is placed at the inner side of the outer rotor type motor, and a rotor as a magnet surrounding the coils of the stator is placed at the outer side of the stator. That is, the outer rotor type motor has a large inertia because it rotates with the rotor. Accordingly, the outer rotor type motor is mainly used in l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/18H02K21/22
CPCF24F1/10F24F1/22F24F1/24
Inventor 赵诚国严载富尹裕述洪暎昊
Owner LG ELECTRONICS INC
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