Fan device, motor and liquid pump
AssigneeJohnson Electric S.A.
InventorsMin LI, Jin Jin WU, Kok Ang CHONG
Life of this patent
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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
Claims20
A fan device, comprising:
- a driving device having a shaft;
- a fan wheel defining a shaft hole to receive the shaft;
- a locking fastener 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
The fan device according to claim 67, wherein one side of the step portion is provided with a plurality of projection portions are disposed in one side of the step portion, a plurality of clamping grooves are disposed in one side of the retaining ring is provided with a plurality of clamping grooves, and each projection portion is clamped in one of the clamping grooves.
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 lock the fan wheel on the shaft;
- wherein the locking fastener has a thermal expansion coefficient same as a thermal expansion coefficient of the shaft.
Dependencies are inferred from the claim text.