Silent type cooling fan motor structure capable of preventing lubricating oil from leaking

Abstract

The invention discloses a silent type cooling fan motor structure capable of preventing lubricating oil from leaking. The silent type cooling fan motor structure capable of preventing lubricating oilfrom leaking comprises an oil-containing bearing, an outer frame and a rotating shaft, wherein the rotating shaft is arranged inside the outer frame, the rotating shaft is arranged at the position, close to the middle, of the outer frame, the oil-containing bearing is arranged on the outer side of the rotating shaft, a middle pipe is arranged on the outer side of the oil-containing bearing, a buckle ring is arranged at the bottom of the oil-containing bearing, and an oil storage space is formed in the part, at the bottom of the buckle ring, of the middle pipe. According to the silent type cooling fan motor structure and the oil-containing bearing, the lubricating oil in a filling bearing system can be enabled to circulate inside the bearing system, and lubricating oil does not leak from the bearing system; the sufficient lubricating oil exists between the inner wall of a bearing inner hole and the shaft center in the operation process of a cooling fan rotor to form an oil film, the pressure of the oil film is sufficient to achieve the effect that the rotor is not inclined when the rotor operates, and the shaft center is not in contact with the inner wall of the bearing hole; and the cooling fan rotor is overturned in the operation process, so that friction abnormal noise caused by the contact between the shaft center and the bearing does not occur at any angle, and the servicelife of a cooling fan is longer.

Description

technical field [0001] The invention relates to the field of fan motor structural equipment, in particular to a silent cooling fan motor structure capable of preventing lubricating oil from leaking out. Background technique [0002] The Chinese patent with the publication number CN202851447U discloses a fan motor structure, which includes a fan frame, a rotor, at least one magnetic member and a stator. The fan frame has a shaft seat and an accommodation space for the shaft seat. There is a hub and a plurality of blades on the outer peripheral side of the hub, the magnetic parts are arranged on the blades, and the stator is arranged between the inner side of the fan frame and the blades; through the design of the stator and the magnetic parts of the present invention, the Improve the air volume and reduce the effect of man-hours. Compared with the present invention, this patent has the problems that the shaft center and the bearing will collide with each other during the tur...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a silent cooling fan motor structure that can prevent lubricating oil from leaking out, so as to solve the traditional cooling fan motor structure and oil bearing system. When the rotor is turning over, the shaft center and the bearing will collide and contact to produce friction sound ; and during the operation of the rotor, the lubricating oil in the oil-impregnated bearing system will flow back from the inside of the oil-impregnated bearing to the outside along the surface of the shaft center, and will be thrown out by the centrifugal force generated by the rotor operation until most of the lubricating oil filled in the oil-impregnated bearing system or All escape, resulting in the inability to form an effective oil film between the bearing and the shaft, the oil film pressure is insufficient, the contact friction between the shaft and the inner hole wall of the bearing wears out and fails until the cooling fan is stuck and does not rotate; the oil bearing system of the cooling fan has a short life, Problems that affect the performance and life of equipment installed with cooling fans

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