A low-noise fan with stable operation
A stable and low-noise technology, applied in the direction of mechanical equipment, electromechanical devices, machines/engines, etc., can solve the problems of increased aerodynamic efficiency and no slight change in noise level, so as to reduce aerodynamic noise, reduce mechanical noise, and reduce absolute wind speed Effect
Active Publication Date: 2021-10-22
绍兴智新机电科技有限公司
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Problems solved by technology
However, compared with the improvement of performance and efficiency, it is much more difficult to reduce fan noise. In some fan optimization cases, the aerodynamic efficiency has increased significantly but the noise level has not changed at all.
Method used
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Embodiment Construction
[0029] Such as Figure 1-14As shown, a low-noise fan with stable operation includes a housing 1, a base 3 located at the bottom of the housing 1 and a motor 41 located in the housing 1, and the base 3 is provided with a plurality of Threaded holes 31, the housing 1 is provided with an inner box body 4, the motor 41 is arranged in the inner box body 4, the motor 41 is a biaxial motor, and an output shaft of the motor 41 is provided with There is a first sleeve head 43, and a second sleeve head 44 is provided on the other output shaft. The first sleeve head 43 is provided with a plurality of first guide fan blades 431, and the first sleeve head 43 is also provided with a plurality of first Through slots, the second sleeve 44 is provided with a plurality of second guide fan blades 441, the first sleeve 43 is provided with a first collar 432, and the first collar 432 is provided with a third guide fan leaves 433, the second collar 44 is provided with a second collar 443, the firs...
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The invention discloses a low-noise blower with stable operation, which comprises a housing, a base arranged at the bottom of the housing, and a motor arranged in the housing, the base is provided with a plurality of threaded holes, and the housing The body is provided with an inner box, the motor is arranged in the inner box, the motor is a double-axis motor, one output shaft of the motor is provided with a first sleeve, and the other output shaft is provided with a second sleeve , the first sleeve is provided with a plurality of first guide fan blades, the first sleeve is also provided with a plurality of first through slots, and the second sleeve is provided with a plurality of second guide fan blades, so The first collar is provided with a first collar, the first collar is provided with a third guide fan blade, the second collar is provided with a second collar, and the second collar is provided with a first There are four guide fan blades, there is a gap between the second sleeve and the inner box; a cover is provided at one end of the housing, and the inner box is detachably connected to the housing.
Description
technical field [0001] The invention belongs to the technical field of low-noise aerodynamic design, in particular to a low-noise fan with stable operation. Background technique [0002] The application scenarios of fans on ships are extremely wide. There are fans that need axial entry and radial outflow; fans that need axial entry and axial outflow are also required. Existing fans on ships mostly use single-stage pressurized fans. This type of fan will generate a lot of noise during operation, and the noise and vibration levels of the fan are directly related to the concealment of the ship when sailing. In order to reduce noise, people have thought of a variety of ways, such as using low-frequency vibration isolation devices, double-layer vibration isolation devices, etc., and can also reduce noise through the design of the fan itself. However, in the case of fan optimization, although the aerodynamic efficiency Some improvement has been achieved. However, compared with t...
Claims
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IPC IPC(8): F04D19/00F04D25/08F04D29/32F04D29/52F04D29/54F04D29/58F04D29/64F04D29/66F04D29/70H02K5/24H02K9/04H02K9/19
CPCF04D19/002F04D19/007F04D25/082F04D29/325F04D29/522F04D29/545F04D29/5806F04D29/584F04D29/646F04D29/663F04D29/666F04D29/667F04D29/668F04D29/703H02K5/24H02K9/04H02K9/19
Inventor 李诗徉蒋洪涛叶豪杰
Owner 绍兴智新机电科技有限公司