Heat dissipating fan with an oil guide
OwnerHsin-Mao Hsiehinventor
Life of this patent
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Abstract
A heat dissipation fan has a casing, a stator, a lubricating bushing and a fan. The stator is secured to the casing with a sleeve. The lubricating bushing has lubricant contained therein and is mounted in the sleeve. The fan is rotatably mounted in the casing and has a permanent magnet to be a rotor. A shaft extends from the fan and through a passage defined through the lubricating bushing. A locking disk is securely mounted on the shaft to hold the lubricating bushing. An oil guide is arranged on the lubricating bushing. Accordingly, the air in the cavity can be released from the oil guide during the assembly of the dissipation fan. The oil guide can keep oil from flowing out of the sleeve and drying out the lubricating bushing. The useful life of the dissipation fan is prolonged.
Claims6
A heat dissipation fan comprising:
- a casing having a base with a cavity defined in a top of the base;
- a sleeve pressed onto to the base;
- a stator pressed onto the sleeve;
- a lubricating bushing with lubricant contained therein and mounted in the sleeve;
- a fan rotatably mounted in the casing and having a permanent magnet to be a rotor;
- a shaft extending from the fan and through a passage defined through the lubricating bushing;
- a locking disk securely mounted on a free end of the shaft to lock the shaft in the lubricating bushing;
- and
- an oil guide arranged on the lubricating bushing through which the lubricant recycles when the dissipation fan is operating.
Dependencies are inferred from the claim text.