Cantilever fan

A cantilever and fan technology, applied in the field of cantilever fans, can solve the problems of performance loss, change in energy conversion properties, and increase in the high cost of laminated piezoelectric actuators.
CN103140686AInactive Publication Date: 2013-06-05艾菲德塞洛墨依公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
艾菲德塞洛墨依公司
Publication Date
2013-06-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

A cantilever fan including a cantilever blade that is clamped at one end. The fan includes an actuator that applies a periodic force to the blade resulting in periodic deflections of the blade.
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Description

technical field Background technique

[0001] The present application relates generally to fan technology for moving air, and more particularly generally to fan technology for moving air for applications in thermal management and hybrid applications.

[0002] Rotating fans that move air for heat transfer applications are a ubiquitous cooling scheme in thermal management of electronics. The increase in power intensity in electronic products has placed demands on rotary fan technology to increase air flow rate, reduce size, increase operating time, reduce noise and vibration, and reduce power consumption. From this list of conflicting requirements, the biggest challenge appears to be long usage times. Emerging products such as HBLED lighting can require fans to last up to 10 years, but the bearings used in rotating fans typically last less than 3 years.

[0003] Cantilever fans have the advantage of eliminating bearings, which are often the components that limit the life of a ...

Claims

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