Structure for preventing fan from oil leakage
An oil leakage and fan technology, applied in the field of fan oil leakage prevention structure, can solve the problems of shortened fan service life, small lubricating oil storage, small oil storage space, etc., to increase cost, reduce oil rejection, improve structure and protect oil effect
Pending Publication Date: 2019-09-24
DONGGUAN HANSHUO PLASTIC CO LTD
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Problems solved by technology
However, the oil deflector ring 3 installed in the existing fan has a small oil storage space, and the structural function of reducing oil rejection is quite limited. Because the structure of the fan limits the size of its oil storage space, it exists in a limited range.
For the fan, its volume and size have certain requirements, so the oil storage of its lubricating oil is bound to be small, so its fluidity is not good, resulting in the lubricating oil not being able to flow back to the bearing 1 for lubrication immediately, making the service life of the fan Problems such as shortening occur
Method used
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Embodiment Construction
[0059] see Figure 2 to Figure 3 As shown, the first embodiment of the present invention provides a fan oil leakage prevention structure, which is mainly composed of a casing unit 20, a stator unit 30, and a rotor unit 40, wherein:
[0060] The shell unit 20 includes a first shell 21, a second shell 22 capable of being assembled with the first shell 21, and an accommodating space 23 defined by the first shell 21 and the second shell 22; A housing 21 has an air outlet 211; the second housing 22 protrudes from a base portion 24 located in the accommodating space 23, and the second housing 22 and the base portion 24 both have several air outlets 211 Connected gas flow holes 25 for gas flow in and out.
[0061] The stator unit 30 is located in the accommodating space 23, and includes a middle tube 31 set on the base portion 24, a drive circuit board 32, and a set of stator core 33 set on the outer surface of the middle tube 31; The tube 31 is recessed with a middle tube groove 3...
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The invention discloses a structure for preventing a fan from oil leakage. The structure for preventing the fan from oil leakage mainly consists of a shell unit, a stator unit and a rotor unit, wherein a middle pipe of the stator unit and a shaft sleeve of the rotor unit are matched with each other, meanwhile, due to the design of a first oil retaining ring part and a second oil retaining ring part of the shaft sleeve, the outward leakage of lubricating oil can be effectively prevented, so that the lubricating oil is not easily seep out from a gap, and the phenomenon of oil throwing is reduced when the fan operates; the defect of oil leakage in the prior art is overcome; and in addition, oil storage space in the fan is increased, under the conditions of not increasing the components and not increasing the cost, the closed leak-proof structure and the oil retaining effect are effectively improved, the oil return rate of lubricating oil is further improved, and the whole service life of the fan is prolonged.
Description
technical field [0001] The invention relates to a fan, in particular to a structure for preventing fan oil leakage. Background technique [0002] With the rapid advancement of computer technology, the heat generated by the central processing unit (CPU) used in the mainframe of the computer is relatively higher and higher. Therefore, it has become an inevitable trend to use fans to assist the central processing unit in cooling. The bearing 1 of the fan is generally lubricated with lubricating oil, but the oil retention effect of the bearing 1 is generally not ideal. With the loss of the lubricating oil in the bearing 1, the friction between the rotating shaft 2 of the fan and the inner wall of the bearing 1 will decrease. Corresponding increase, thereby reducing the service life of the bearing 1, thereby reducing the service life of the fan. [0003] see figure 1 As shown, in the prior art, an annular oil deflector ring 3 is arranged above the bearing 1, an oil storage spac...
Claims
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IPC IPC(8): F04D29/063
CPCF04D29/063
Inventor 谢宏华刘赖明曾禄武周利江
Owner DONGGUAN HANSHUO PLASTIC CO LTD