Adjustable device for balancing a fan

a technology of adjustable device and fan, which is applied in the direction of liquid fuel engines, marine propulsion, and vessel construction, etc., can solve the problems of significantly affecting the integral quality of a product associated with the fan, the effect of reducing weigh

US20070253820A1Inactive Publication Date: 2007-11-01LIU WEN HAO
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2007-11-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

An adjustable device for balancing a fan includes a hollow hub, which defines a receiving space and a plurality of fan blades extending outward from the hollow hub. Wherein, the receiving space includes an inner ring at the inner wall surface thereof and at least a balancing granular part is connected to the inner ring via a weak spot such that the weak spot is capable of being broken for separating the balancing granular part from the ring. Once the balancing granular part is removed to reduce weight at the position without the balancing granular part, the fan is able to run steadily instead of in a state of unbalancing.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention is related to an adjustable device for balancing a fan and particularly to a device, which is capable of regulating and keeping the fan running steadily.

[0003] 2. Brief Description of the Related Art

[0004] Generally, once any one of fans is running to drag air moving, it results in convention between the air and heat from a hot object is created to dissipate the heat effectively. It is known that the conventional fan provides a hub and a plurality of fan blades extending from the hub for performing task of dragging the air. However, in case of gravity of center of the fan deviating from the center thereof, vibration is created during the fan is running.

[0005] The vibration fan makes the spindle thereof to become fatigue more easily and lead to shorten life span of the fan in addition to generating noise such that integral quality of a product associated with the fan and effect of heat dissip...

Examples

Embodiment Construction

[0015] Referring to FIGS. 2 and 3, an adjustable device for balancing a fan according to the application is employed to keep a fan 20 running in a state of balancing and the fan 20 provides a hub 21, which is hollow to define a receiving space and a inner ring 22 is provided at the inner wall of the receiving space. It is noted that the inner ring 22 can be fixedly attached to fit with the receiving space. A plurality of fan blades 23 extends outward from the hub 21 for generating convection between heat and dragged air. The fan further includes a spindle 24, which is disposed at the center of the receiving space of the hub 21 and can be joined to the inner ring 22, a magnetic component 25 such as magnet or the like, which is disposed to surround the inner ring 22 and to be joined to a fan base (not shown) for creating magnetic reaction.

[0016] When the hub 21 and / or the fan blades 23 has an inconsistent weight or the fan 21 is provided with non-equilibrium weight due to the magneti...