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Standing wave type ultrasonic dust collector and dustcollection method thereof

A technology for vacuum cleaners and ultrasonic transducers, applied in the installation of vacuum cleaners, electrical equipment, cleaning equipment, etc., can solve the problems of compactness, light weight and energy utilization of vacuum cleaners, which are difficult to be further improved.

Inactive Publication Date: 2011-11-16
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the need to use rotating parts and drive a large amount of air flow, it is difficult to further improve the traditional vacuum cleaner in terms of compactness, light weight and energy utilization

Method used

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  • Standing wave type ultrasonic dust collector and dustcollection method thereof
  • Standing wave type ultrasonic dust collector and dustcollection method thereof
  • Standing wave type ultrasonic dust collector and dustcollection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The structure of embodiment one is as figure 1 shown.

[0016] Each wall of the hexahedral cavity of the ultrasonic cleaner is made of a metal thin copper plate with a thickness of 0.5mm; the sound radiation surface 2 and the sound reflection surface 4 are parallel, and the distance between them d for 9 lambda / 4 (= 38.3 mm), where lambda is the wavelength of ultrasound (=17mm) to form a standing wave ultrasonic field in the cavity (1); the length, width and height of the standing wave sound field are 38.3mm, 20mm and 10mm respectively. The sound radiating surface is driven by a piezoelectric sheet (3) located outside it. The length, width, and thickness of the piezoelectric sheet are 20mm, 10mm, and 2mm, respectively, and are bonded on the outside of the sound radiating surface. The frequency of the driving voltage is 20kHz, and the amplitude is 260Vrms; with the sound pressure node line on the bottom of the ultrasonic cleaner as the center line,...

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Abstract

The invention relates to a standing wave type ultrasonic dust collector and a dust collection method thereof, belonging to the technical field of ultrasonic standing wave utilization. The standing wave type ultrasonic dust collector disclosed by the invention is used for collecting tiny dust outside a cavity into the cavity by means of a zero-sound pressure position in an ultrasonic standing wavefield of the cavity. The cavity consists of a sound radiation surface, a sound reflection surface, a bottom surface with a dust collecting port, a top surface and two side surfaces. In the traditional dust collector, a rotary electromagnetic motor needs to be used for driving an air pump to enable a large amount of air to flow, thus vacuum or cyclone is formed to collect dust. adopting the rotaryelectromagnetic motor and driving a large amount of air to flow are not needed, therefore, the ultrasonic dust collector disclosed in the invention has the advantages of compact structure, light weight, small size and high utilization rate of energy, furthermore, an ultrasonic wave near the dust collecting port can play a role of sterilizing the surface on which the dust is removed.

Description

technical field [0001] The invention relates to the technical field of ultrasonic standing wave utilization. Background technique [0002] Traditional vacuum cleaners need to use a rotating electromagnetic motor to drive an air pump to create a vacuum or cyclone to suck up dust. Due to the need to use rotating parts and drive a large amount of air flow, it is difficult to further improve the traditional vacuum cleaner in terms of compactness, light weight and energy utilization. To solve these problems, novel suction technologies that are compact, have no rotating parts, and do not need to drive large volumes of air flow must be used. Contents of the invention [0003] The object of the present invention is to provide a standing wave ultrasonic vacuum cleaner and its vacuuming method that has no rotating parts, does not need to drive a large amount of air to flow, and has the advantages of compact structure, light weight and high energy utilization rate. [0004] A stand...

Claims

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Application Information

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IPC IPC(8): A47L9/28A47L9/00B06B1/06
Inventor 胡俊辉
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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