Fan, Impeller thereof, method of balancing weight of the impeller, and impeller balancing system

Abstract

A fan, an impeller thereof, a method of balancing weight of the impeller, and an impeller balancing system are disclsoed for solving hte following technical problems of high process difficult and manufacturing cost of an impeller that fits a method of balancing weight in the prior art, and as well as low executing efficiency and poor balance accuracy. The impeller includes a rotary shaft, a hub bond thereto, a fan assembly bond to the hub, and a UV-cured adhesive that is combined on the surface of the fan assembly.

Description

technical field [0001] The invention relates to a rotating device, in particular to a method for balancing the counterweight of a fan wheel by using ultraviolet curing glue, a fan and its fan wheel, and a counterweight balancing system for the fan wheel. Background technique [0002] When a rotating device (such as: fan, engine, helicopter or ship's power system, etc.) is running, if the rotation is unbalanced to cause self-excited force, it will cause adverse effects such as vibration, noise or function damage. Taking a fan as an example, when an impeller rotates, if the impeller has asymmetric shape, manufacturing tolerances, deformation, uneven material distribution, misaligned installation, or ambient temperature, etc., it will cause unbalanced rotation . Therefore, the rotation balance adjustment of the finished fan should be carried out to avoid the above-mentioned adverse effects. [0003] Please refer to figure 1 As shown, in the existing method of balancing the c...

AI Technical Summary

Problems solved by technology

[0004] The blades or the hub of the fan wheel 9 must be provided with counterweight slots 92 in advance for accommodating the counterweights 91. However, setting the counterweight slots 92 on the fan wheel 9 will improve the structure of the fan wheel 9. complexity, resulting in increased process difficulty and higher manufacturing costs of the fan wheel 9

Moreover, the counterweight 91 must be fixed in the counterweight slot 92 to prevent the counterweight 91 from falling out when the fan wheel 9 rotates, so the action of increasing or decreasing the counterweight 91 is time-consuming. Long, resulting in low execution efficiency of the counterweight operation of the balance fan wheel

[0005] The positions of the plurality of counterweight slots 92 are fixed, so if the position of the estimated counterweight 91 is not provided with counterweight slots 92, the counterweight of the fan wheel 9 will not be able to be balanced

And, the size of each counterweight slot 92 is also fixed, so the weight of the counterweight 91 that can be accommodated in the counterweight slot 92 is also fixed. When the weight of weight block 91 will cause this fan wheel 9 counterweights to be unable to be balanced equally

Accordingly, the existing method of balancing the counterweight of the fan wheel cannot accurately balance the counterweight of the fan wheel 9, making it difficult for the fan wheel 9 to reach a rotationally balanced state

[0006] Moreover, in order to meet the heat dissipation requirements of small-sized systems such as handheld electronic devices, existing fans often adopt a thinner design, so the size of the fan wheel is also relatively light and thin. The fan wheel of the thinner fan is subject to technical difficulties and manufacturing costs Due to the limitation, the counterweight slot 92 cannot be opened to accommodate the counterweight 91. In other words, the existing method of balancing the counterweight of the fan wheel is not suitable for the fan wheel of a thinner fan

[0007] To sum up, the existing method of balancing the counterweight of the fan wheel not only has problems such as technical difficulty and high manufacturing cost of the applicable fan wheel 9, low execution efficiency and poor balance accuracy, but also is not suitable for The fan wheel of the thinner fan has different limitations and shortcomings in actual use. It is indeed inconvenient and needs to be further improved to enhance its practicability.

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