Environmental-friendly low-noise damping alternating-current centrifugal fan
A centrifugal fan and low-noise technology, applied in mechanical equipment, radial flow pumps, machines/engines, etc., can solve the problems of high fan noise and easy wear and tear, and achieve the effects of pressure reduction, reduced wear and improved stability
Active Publication Date: 2021-01-22
DONGGUAN MUTUAL MOTOR TECH
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- Application Information
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Problems solved by technology
[0005] In view of the above situation, in order to make up for the technical deficiencies of the existing technology, the present invention provides an environmentally friendly low-noise shock-absorbing AC centrifugal fan to solve the problems of the existing fan with high noise and easy wear due to vibration
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[0017] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0018] Depend on Figure 1 to Figure 9 Given, the present invention includes a volute 1 and an impeller 2 placed in the volute, the volute 1 has an axial air inlet 3 coaxially arranged with the impeller 2 and a centrifugal air outlet 4 placed outside the circumference of the impeller 2, so Said volute 1 has a middle tube 5 arranged coaxially with the impeller 2, one end of the middle tube is connected to the volute 1, and the impeller 2 has a mandrel 6 coaxially placed inside the middle tube 5, the mandrel 6 One end of the mandrel 6 is connected to the impeller 2, the middle part of the mandrel 6 is coaxially hinged with the middle pipe 5 through the sphere 7, and the other end of the mandrel 6 passes through the middle pipe 5 and is connected with a counterweight rotor 8; the middle pipe 5 There is an iron core 9 coaxi...
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The invention relates to an environmental-friendly low-noise damping alternating-current centrifugal fan. The environmental-friendly low-noise damping alternating-current centrifugal fan comprises a volute 1 and an impeller 2 arranged in the volute. The volute is provided with an axial flow air inlet and a centrifugal air outlet. The volute is provided with a middle pipe coaxial with the impeller.One end of the middle pipe is connected with the volute. The impeller is provided with a mandrel arranged on the inner side of the middle pipe. One end of the mandrel is connected with the impeller.The middle of the mandrel is hinged to the middle pipe through a ball. The other end of the mandrel penetrates the middle pipe and is connected with a balance weight rotor. The middle pipe is providedwith an iron core arranged on the outer side of the middle pipe. A winding is wound around the outer side of the iron core. The impeller is provided with a rotor surrounding the periphery of the ironcore. According to the environmental-friendly low-noise damping alternating-current centrifugal fan, ball hinge is utilized, the mandrel has the deflection capacity in all directions, vibration can be converted into axis deflection of the mandrel, then angular momentum generated during the rotation of the impeller and the balance weight rotor is utilized for effectively buffering and suppressingthe deflection, the pressure borne by internal parts is significantly reduced, and abrasion between the parts is reduced.
Description
technical field [0001] The invention relates to airborne radar ventilation and heat dissipation equipment, in particular to an environmental-friendly, low-noise, shock-absorbing AC centrifugal fan. Background technique [0002] In order to meet the needs of air security, reconnaissance, surveying and mapping, etc., to ensure the accuracy of routes and flight safety, radars are widely used in various types of aircraft, especially military aircraft equipment; in order to enable airborne radars to obtain wider scanning coverage and For more accurate scanning results, the power of the airborne radar is high when it is working, and the equipment generates a lot of heat. Timely and effective heat dissipation is required to ensure that its temperature is normal and the radar can work normally. [0003] Airborne radar generally uses fan equipment for air-cooling and heat dissipation. Air-cooling heat dissipation needs to introduce external ambient air. During high-speed flight and m...
Claims
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IPC IPC(8): F04D25/08F04D17/16F04D29/42F04D29/44F04D29/66
CPCF04D17/16F04D25/08F04D29/4233F04D29/441F04D29/662F04D29/663F04D29/668
Inventor 雷付长
Owner DONGGUAN MUTUAL MOTOR TECH