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Fan and motor thereof

A motor and casing technology, applied in the field of coil setting of fans and their inner rotor motors, can solve the problems of difficult start, reduce fan air volume, magnetic flux leakage, etc., reduce production and manufacturing costs, improve motor efficiency, and simplify winding way effect

Active Publication Date: 2012-01-04
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing inner rotor fan uses an inner rotor motor to drive the fan blades to rotate. However, since the silicon steel sheets and the winding wires of the stator structure occupy most of the space between the fan frame and the fan blades, the fan is directly reduced. The area of ​​the air inlet and air outlet indirectly reduces the air volume that the fan can exhaust
In addition, silicon steel sheets need to be wound separately for winding, which will increase the production and manufacturing costs of the fan
[0005] In addition, the existing miniaturized DC fan motor design has no Yoke design for its winding and magnetic ring, which is prone to disadvantages such as poor motor efficiency and magnetic flux leakage.
Due to the non-biased design, the rotor may also be located at the starting dead point, resulting in the disadvantage of not being easy to start

Method used

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  • Fan and motor thereof
  • Fan and motor thereof
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Embodiment Construction

[0021] A fan and its motor according to preferred embodiments of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference symbols.

[0022] Please refer to figure 1 As shown, a fan 1 of the present invention includes an inner rotor motor, and the inner rotor motor includes a casing 11 , a rotor assembly 12 and a stator assembly 13 . The rotor set 12 has a rotor 121, the rotor has a fan blade 122 accommodated in the casing 11, and another magnetic element is sleeved on the rotor 121, the rotor 121 can also be directly made of magnetic materials, so that it can save As a demagnetizing element, a first magnetically conductive element 123 is arranged on the inner ring of the rotor 121 to provide a closed magnetic circuit. The stator group 13 is accommodated in the housing 11 corresponding to the rotor group 12. The stator group 13 includes A coil 131 , the coil 131 is formed by a continuo...

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PUM

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Abstract

The invention discloses a fan and a motor thereof. The fan comprises an interior rotor motor. The motor comprises a casing, a rotor group and a stator group, wherein the rotor group is provided with arotor. The rotor is provided with a fan blade arranged in the casing, the stator group corresponding to the rotor group is arranged in the casing and comprises a coil, and the coil is formed in sucha way that a continuous wire material surrounds the rotor after forming a flat helical structure along the circumferential direction of the rotation of the motor by taking the radial direction of themotor as a center in a helical winding mode.

Description

technical field [0001] The invention relates to a fan and its motor, in particular to a fan and the coil arrangement of the inner rotor motor thereof. Background technique [0002] The volume of the current fans used in electronic devices or electronic systems tends to be thinner and smaller. In the limited volume of products, it is necessary to improve the heat dissipation performance of the fans. In order to improve the heat dissipation performance of the fan, one of the important improvement methods is to adjust the fan blade area of ​​the fan. [0003] Generally speaking, fan motors can be classified into outer rotor motors and inner rotor motors according to the arrangement of the rotor structure and the stator structure. [0004] The existing inner rotor fan uses an inner rotor motor to drive the fan blades to rotate. However, since the silicon steel sheets and the winding wires of the stator structure occupy most of the space between the fan frame and the fan blades,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/02H02K21/14H02K3/04H02K1/27H02K11/00F04D25/08H02K11/20
Inventor 陈厚助蔡水发梁弘毅陈李龙徐金柱
Owner DELTA ELECTRONICS INC
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