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Fan

A fan and fan frame technology, which is applied in the field of fans with high efficiency, can solve the problems of increasing the size of the cost fan module, the power cannot greatly improve the fan efficiency, and the inability to use large-sized fans, so as to achieve fan power improvement and heat dissipation efficiency optimized effect

Pending Publication Date: 2019-03-26
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the existing fan speed is increased, it is gradually limited by the power (generally the maximum power is below 200W) and the fan efficiency cannot be greatly improved.
And considering the space factor, it is also impossible to use large-sized fans (such as fans with a size of 170mm×150mm and above)
[0003] In the prior art, fan configurations such as serial or counter-rotating are used to improve convection efficiency, but these methods increase the cost and the size of the fan module

Method used

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Embodiment Construction

[0053] refer to figure 1 , which is a sectional view showing the fan 1 according to the embodiment of the present invention, including a fan frame 30 , a rotor 10 and a stator 20 . The rotor 10 is accommodated in the fan frame 30 and includes a hub 11 , a plurality of fan blades 12 , a metal shell 13 and a magnetic ring 14 . The blades 12 are formed on the periphery of the hub 11 . The hub 11 is sheathed on the metal shell 13 . The metal shell 13 is sheathed on the magnetic ring 14 . The stator 20 is accommodated in the fan frame 30 and includes a plurality of silicon steel sheets 21 . Wherein, a plurality of silicon steel sheets 21 are formed with an outer diameter DS of the silicon steel sheet, the outer diameter DS of the silicon steel sheet is greater than 42mm, and the rated speed of the fan is greater than 8000r / min.

[0054] In the embodiments of the present invention, a fan with optimized heat dissipation efficiency can be provided through specific size and rotatio...

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Abstract

The invention discloses a fan. The fan comprises a fan frame, a rotor and a stator. The rotor is contained in the fan frame and includes a magnetic ring, a metal shell, a hub and a plurality of fan blades. The metal shell is arranged on the magnetic ring in a sleeving mode. The hub is arranged on the metal shell in a sleeving mode. The fan blades are formed on the circumference of the hub. The stator is contained in the fan frame and comprises a plurality of silicon steel sheets. The multiple silicon steel sheets form a silicon steel sheet outer diameter, the silicon steel sheet outer diameteris greater than 42 mm, and the rated speed of the fan is greater than 8000 r / min.

Description

technical field [0001] The invention relates to a fan, in particular to a fan with higher efficiency. Background technique [0002] With the increase in the power of computers and servers, the resulting heat dissipation problems have gradually become more severe and need to be overcome by more effective convection methods. However, fans with existing sizes (for example, fans with a size of 120mm×120mm and below) are gradually insufficient. Even if the speed of the existing fan is increased, it is gradually limited by the power (generally below the maximum power of 200W) and the fan efficiency cannot be greatly improved. And considering the space factor, it is also impossible to use a large-sized fan (for example, a fan with a size of 170mm×150mm or above). [0003] In the prior art, fan configurations such as serial or counter-rotating are adopted to improve the convection efficiency, but these methods increase the cost and the size of the fan module. There is therefore a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/32F04D29/38F04D29/52H02K1/12
CPCF04D25/08F04D29/329F04D29/38F04D29/522H02K1/12H02K2213/03F04D25/0646H05K7/20172F04D29/602F04D29/181F04D25/064F04D25/0613F04D19/002F04D29/388
Inventor 张楯成刘文彬林天坤杨朝富
Owner DELTA ELECTRONICS INC