A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.

A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.

A motor includes a rotary portion including a shaft having a center on a vertically extending central axis. A bearing portion rotatably supports the shaft. A stationary portion includes a stator. The bearing portion is radially outward of the shaft and includes a sleeve bearing that contains a lubricating oil; and a housing radially outward of the sleeve bearing. The stator includes a stator core that is radially outward of the housing; and an insulator that covers at least part of the stator core. The insulator includes an upper insulating portion that covers an upper face of the stator core; a connecting portion that extends radially inward from the upper insulating portion; and an insulator inclined portion that is inclined in a direction away from the central axis, away from the connecting portion.

A bearing structure includes a heat dissipating fan using the same. The bearing structure comprises a body which has a first surface, a second surface, and an inclined grease guiding surface. The first surface is provided with a shaft hole penetrating through the body. The inclined grease guiding surface is sloped on the first surface. Two end edges of the inclined grease guiding surface individually connect the first surface and the shaft hole. The bearing structure disposed in the heat dissipating fan can prevent the grease from leaking and increase the storage capacity for the grease.

A motor assembly includes a shaft, a bearing, at least one fluid channel, a temperature sensor, a lubricant supply pump, and a controller. The bearing defines a bearing interface against which the shaft rotates. The at least one fluid channel is fluidly coupled with the bearing interface. The temperature sensor detects a temperature of the bearing. The lubricant supply pump is fluidly coupled with the at least one fluid channel to transport lubricant from a lubricant supply to the bearing interface via the at least one fluid channel. The controller receives the bearing temperature from the temperature sensor, determines a difference between the bearing temperature and a supply temperature of the lubricant, determines a lubricant flow rate based on the difference, and transmits a control signal to the lubricant supply pump to cause the lubricant supply pump to transport the lubricant to the bearing interface at the lubricant flow rate.

Provided is an air compressor improved in terms of reliability by taking into consideration of the condensation of the water vapor in the compressed air. According to the present invention, an air compressor includes: a compressor main body; a compression chamber of the compressor main body compressing sucked-in air; an oil supply port supplying a lubricating oil to the compression chamber; an oil separator separating compressed air discharged from the compression chamber and the lubricating oil from each other; oil temperature adjustment means adjusting temperature of the lubricating oil supplied to the oil supply port; control means controlling the oil temperature adjustment means; sucked-in air temperature detection means detecting temperature of the sucked-in air; and sucked-in air humidity detection means detecting humidity of the sucked-in air, wherein the oil temperature adjustment means is controlled on the basis of detection information of the sucked-in air temperature detection means and of the sucked-in air humidity detection means.

A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.

A heat dissipating fan includes a base with a central tube, a stator arranged on the base and around the central tube, a rotor connected to and rotated surround the stator and a bearing unit received in the central tube of the base. The bearing unit includes a bearing and an oil seal, where the bearing and an oil seal are molded as one.

A vibration damper structure and a fan thereof. The vibration damper structure includes a support body, a fixing seat and an elastic member. The support body has a lower end. The fixing seat has a tubular section. The tubular section has a protrusion end corresponding to the lower end of the support body and a receiving space. The receiving space has a bottom section. The elastic member is disposed in the receiving space of the tubular section and positioned between the support body and the fixing seat. Two ends of the elastic member are respectively in contact with the lower end of the support body and the bottom section of the receiving space. The vibration damper structure is applied to the fan to greatly reduce the vibration of the fan in operation.

This blower apparatus includes an air blowing portion, a motor portion, and a housing. The housing includes an air inlet and an air outlet. At least one of the flat plates includes an air hole. Once the air blowing portion starts rotating, an air flow traveling radially outward is generated between the flat plates by viscous drag of surfaces of the flat plates and a centrifugal force. Since the air flow is generated between the flat plates, the air flow does not easily leak upwardly or downwardly, and thus, an improvement in air blowing efficiency is achieved. Since the air hole is defined in the flat plate(s), gas can be easily supplied to the axial gap, resulting in improved air blowing efficiency. In addition, with each spacer being arranged between the flat plates, the axial gap can be adjusted to have a desired axial dimension.