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Fan with noise reduction function for breathing machine

A ventilator and noise reduction technology, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of high noise level and affecting the sleep of patients, and achieve the effect of noise reduction and remarkable effect

Pending Publication Date: 2022-06-07
CONSTAR MOTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As ventilator manufacturers have higher and higher requirements for turbo fans in product iterations, the noise value of traditional ventilators is relatively high, especially wind noise, which is likely to affect the sleep of patients. Therefore, it is urgent to reduce the noise.

Method used

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  • Fan with noise reduction function for breathing machine
  • Fan with noise reduction function for breathing machine
  • Fan with noise reduction function for breathing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention is further described below in conjunction with embodiments and accompanying drawings.

[0045] as Figure 1-4 As shown, a ventilator having a noise reduction function for a ventilator, comprising a volute 1, the volute 1 is provided with a volute air inlet 2 and a volute air outlet 3, the volute 1 has an air cavity 4 inside, the volute 1 is installed impeller 5, the impeller 5 is close to the volute inlet 2, the impeller 5 is driven by a motor (not shown in the figure), the wind flows into the air cavity 4 after entering the impeller 5 from the volute inlet 2 into the air cavity 4, and then flows out from the volute air outlet 3.

[0046] The volute 1 has a shock absorption space 8, the shock absorption space 8 is filled with a shock absorbing medium, the shock absorption space 8 is used to absorb the vibration energy generated when the impeller 5 runs within the volute 1, the volute 1 comprises a mutually coordinated lower volute 101 and an upper volut...

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Abstract

The ventilator fan with the noise reduction function comprises a volute, a volute air inlet and a volute air outlet are formed in the volute, an air cavity is formed in the volute, an impeller is installed in the volute, a shock absorption space used for absorbing shock energy generated when the impeller operates is arranged in the volute, and the shock absorption space is filled with shock absorption media. The shock absorption space is used for absorbing shock energy generated during operation of the impeller, an air guide part is installed in the air cavity, Q air channels are formed in the air guide part, N air entering the air cavity completely or partially flows through the air channels and then flows out, a backflow gap is formed between the impeller and the volute, and a noise reduction assembly is arranged in the backflow gap. Structures such as the shock absorption space, the noise reduction assembly, the noise reduction hole and the air guide piece are arranged in the fan and are correlated layer by layer and mutually influenced, so that the noise reduction effect of the fan is very remarkable.

Description

Technical field [0001] The present invention relates to the field of fan technology, specifically to a ventilator with a noise reduction function. Background [0002] In modern clinical medicine, as an effective means that can artificially replace the function of autonomous ventilation, ventilators have been widely used in respiratory failure caused by various causes, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation, occupying a very important position in the field of modern medicine. A ventilator is a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong the lives of patients. [0003] Turbine fans, the key components of ventilators. Due to the increasing requirements of ventilator manufacturers for turbo fans, the noise value of traditional ventilators is high, especially wind noise, which is easy to affect the sleep of patients, so it is urgent to reduce n...

Claims

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Application Information

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IPC IPC(8): F04D29/66F04D29/44F04D29/28
CPCF04D29/668F04D29/663F04D29/666F04D29/667F04D29/441F04D29/281
Inventor 张振建郭瑞刘东
Owner CONSTAR MOTION CO LTD
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