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US 10,883,520 B2Granted
Fan device, motor and liquid pump
AssigneeJohnson Electric International AG
InventorsMin Li, Jin Jin Wu, Kok Ang Chong
Life of this patent
Estimating the term…
Abstract
A fan device includes a driving device, a fan wheel, and a locking fastener. The driving device includes a shaft. The fan wheel defines a shaft hole to receive the shaft. The locking fastener has a thermal expansion coefficient same as a thermal expansion coefficient of the shaft.
Claims15
A fan device, comprising:
- a driving device having a shaft;
- a fan wheel defining a shaft hole to receive the shaft;
- a locking fastener to lock the fan wheel on the shaft;
- and wherein a thermal expansion coefficient of the locking fastener is the same as a thermal expansion coefficient of the shaft,
- wherein the fan wheel further comprises a fixing member and an outer ring part, the fixing member is disposed at an axis position of the outer ring part and is convexly formed from the outer ring part, and the shaft hole is defined in the fixing member along an axis of the outer ring part, the locking fastener penetrates through the shaft hole and locks the fixing member to the shaft;
- wherein the locking fastener is of a hollow cylindrical nail body, a nail head is arranged in one end of the locking fastener and a plurality of leaflets divided by a gap arranged in the other end of the locking fastener, and the nail head resists against one end of the fixing member;
- and wherein a plurality of clamping grooves are formed in an end wall at one end of the fixing member, the other end of the locking fastener is provided with bent portions, and the other end of the fixing member away from the clamping grooves resists against one corresponding nail head and the bent portions are clamped in the clamping grooves.
4 more elements
A motor, comprising:
- a housing;
- a stator disposed in the housing;
- a rotor disposed in the housing;
- an end cap covered at one end of the housing;
- and
- a fan device fixed by a shaft of the rotor, wherein the fan device comprises a fan wheel defining a shaft hole to receive the shaft;
- and a locking fastener to lock the fan wheel on the shaft;
- wherein a thermal expansion coefficient of the locking fastener is the same as a thermal expansion coefficient of the shaft, the fan wheel further comprises a fixing member and an outer ring part, the fixing member is disposed at an axis position of the outer ring part and is convexly formed from the outer ring part, and the shaft hole penetrates through the fixing member along an axis;
- a plurality of clamping grooves are formed in an end wall at one end of the fixing member, the locking fastener is of a hollow cylindrical nail body, a nail head is arranged in one end of the locking fastener, the other end of the locking fastener is provided with bent portions, the other end of the fixing member away from the clamping grooves resists against the nail head and the bent portions are clamped in the clamping grooves.
6 more elements
A fan device, comprising:
- a driving device having a shaft;
- a fan wheel defining a shaft hole to receive the shaft;
- a locking fastener to lock the fan wheel on the shaft;
- and wherein the locking fastener has a thermal expansion coefficient same as a thermal expansion coefficient of the shaft;
- wherein the fan wheel further comprises a fixing member and an outer ring part, the fixing member is disposed at an axis position of the outer ring part and is convexly formed from the outer ring part, and the shaft hole penetrates through the fixing member along an axis;
- the locking fastener is of a hollow cylindrical nail body, a nail head is arranged in one end of the locking fastener and a plurality of leaflets divided by a gap arranged in the other end of the locking fastener, and the nail head resists against one end of the fixing member;
- and a plurality of clamping grooves are formed in an end wall at one end of the fixing member, the other end of the locking fastener is provided with bent portions, and the other end of the fixing member away from the clamping grooves resists against one corresponding nail head and the bent portions are clamped in the clamping grooves.
4 more elements
Dependencies are inferred from the claim text.