Fan, motor and oil seal structure
A technology of oil seal and motor, which is applied in the field of fan and motor oil seal structure, which can solve the problems of reduced motor reliability and service life, affecting fan performance, leakage, etc., to achieve the effect of reducing consumption, improving reliability and service life
Active Publication Date: 2009-05-20
DELTA ELECTRONICS INC
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Problems solved by technology
[0003] However, since the oil seal ring is set on the rotating shaft, it cannot completely seal the space for storing lubricating oil, so it is easy to cause the lubricating oil to slowly leak from the gap between the oil bearing and the rotating shaft as the motor runs at high speed for a long time
If the motor is turned upside down, the leakage of lubricating oil will be accelerated due to gravity, which will reduce the lubrication degree of the rotating shaft and the oil bearing, resulting in a reduction in the reliability and service life of the motor, which will affect the performance of the fan
Method used
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[0030] A structure of a fan, a motor and an oil seal according to a preferred embodiment 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.
[0031] Please refer to figure 1 and figure 2 , figure 1 is a cross-sectional view of a fan, figure 1 for figure 2 A partial enlarged view of the oil seal structure. A fan 1 of a preferred embodiment of the present invention includes an impeller 16 and a motor 10, the motor 10 is used to drive the impeller 16, and the motor 10 includes a shaft tube portion 11, a rotating shaft 13, a fluid bearing 14, and an oil seal structure 15 and an impeller 16. The fan 1 can be an axial fan or a centrifugal fan, and the motor 10 can be an inner rotor motor or an outer rotor motor. In this embodiment, an external rotor motor of an axial flow fan is taken as an example for illustration, but it is not intended to limit the present invent...
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The invention discloses an oil seal structure applied to motors. A motor is provided with a rotating shaft, a fluid bearing and a shaft tube part, wherein the fluid bearing is sleeved with the rotating shaft and is accommodated in the shaft tube part. The oil seal structure comprises a cover and at least one sealing element, wherein the cover is arranged around the rotating shaft and is connected with one end of the shaft tube part, and the sealing element is arranged around the rotating shaft and is positioned between the fluid bearing and the cover. The invention also discloses a motor having the oil seal structure, as well as a fan.
Description
technical field [0001] The invention relates to an oil seal structure, in particular to an oil seal structure applied to fans and motors. Background technique [0002] The operation of the fan comes from its motor. In order to cope with the smooth and stable high speed of the motor of the fan, the prior art uses an oil-impregnated bearing to support the rotating shaft of the motor. The oil-impregnated bearing fits the rotating shaft, and another oil seal is arranged above the oil-impregnated bearing and ringed around the rotating shaft to seal lubricating oil in the oil-impregnated bearing. [0003] However, since the oil seal ring is arranged on the rotating shaft, it cannot completely seal the space for storing lubricating oil, so it is easy to cause the lubricating oil to slowly leak from the gap between the oil bearing and the rotating shaft as the motor runs at high speed for a long time. If the motor is turned upside down, the leakage of lubricating oil will be accele...
Claims
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IPC IPC(8): H02K5/167H02K5/124
Inventor 李跃飞胡应喜叶东昌林永彬
Owner DELTA ELECTRONICS INC