Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Breathing machine and blower fan noise reduction device thereof

A ventilator and blower technology, applied in the field of ventilators, can solve the problems of high noise, achieve low wind resistance, reduce friction noise and impact noise, and facilitate assembly

Pending Publication Date: 2018-05-22
深圳市大雅医疗技术有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a ventilator fan noise reduction device and a ventilator using the device, aiming to solve the problem of high noise in the existing ventilator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Breathing machine and blower fan noise reduction device thereof
  • Breathing machine and blower fan noise reduction device thereof
  • Breathing machine and blower fan noise reduction device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0024] Such as figure 1 As shown, the fan noise reduction device applicable to ventilators provided by the present invention includes an upper shell 1 , a fan shock absorber 3 , a lower shell 4 and an air outlet rectifying device 5 . The centrifugal fan 2 of the ventilator is installed in the fan shock absorber 3, and the fan shock absorber 3 is clamped between the upper shell 1 and the lower shell 4, and the air outlet rectifying device 5 is installed in the upper shell 1 and the lower shell 4. On the air outlet formed by cooperation of the lower shell 4, it is positioned through the card slot and locked by screws. The fan shock absorber 3 is arranged between the upper shell 1 and the lower shell 4 to isolate the cavity formed by the u...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Heightaaaaaaaaaa
Diameteraaaaaaaaaa
Heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a breathing machine and a blower fan noise reduction device thereof. The breathing machine comprises an upper housing, a blower fan damping sleeve, a lower housing, and an airoutlet rectifying device. A centrifugal fan of the breathing machine is arranged in the blower fan damping sleeve. The blower fan damping sleeve is clamped between the upper housing and the lower housing. The air outlet rectifying device is arranged on an air outlet of the centrifugal fan. The blower fan damping sleeve is arranged between the upper housing and the lower housing and divides a cavity formed by the upper housing and the lower housing into an upper cavity and a lower cavity. The upper cavity is a first static pressure cavity. The lower cavity is a second static pressure cavity. The noise reduction device can reduce about 8 dB(A) noise of the centrifugal fan, and is characterized by low windage resistance, easy mold opening, convenient assembly, high reliability, and good shockabsorption effect.

Description

technical field [0001] The invention relates to a ventilator, in particular to a ventilator and a fan noise reduction device thereof. Background technique [0002] Noise is an important indicator of the ventilator. The lower the noise of the ventilator, the more conducive it is for the user to fall asleep at night. The fan is the only power component in the ventilator, and it is also the main source of noise. It can be seen that it is very necessary to design an effective fan noise reduction device. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The object of the present invention is to provide a ventilator blower fan noise reduction device and a ventilator using the device, aiming to solve the problem of high noise in the existing ventilator. [0005] Technical scheme of the present invention is as follows: [0006] A fan noise reduction device for a ventilator, which includes an upper shell, a fan shock ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04D29/66F04D29/42F04D29/44F04D29/02
CPCF04D29/023F04D29/4226F04D29/441F04D29/663F04D29/665F04D29/667F04D29/668
Inventor 夏聪
Owner 深圳市大雅医疗技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products