Ventilator noise reduction pod

Abstract

The utility model discloses a breathing machine noise reduction cabin body, including the main part, the main part inside is provided with the irregular air inlet, and the air inlet one end is the noise reduction cabin body, is provided with the noise reducer in the noise reduction cabin body, and the noise reducer can be through the glue stick or ultrasonic welding in the noise reduction cabin body of main part, is provided with a plurality of noise reduction through -hole on the noise reducer, in the fan operation process in the main part, and the external gas can pass the noise reducer in the noise reduction cabin body and enter the air inlet, and the gas will flow in the noise reducer and produce the noise, and a part of noise will reflect, consume in the noise reducer, and a part of noise will enter the noise reduction through -hole, and the sound passes these noise reduction through -hole, and rubs with material and causes the sound energy to transform into the heat energy and is consumed when, and further realizes the sound absorption effect, is favorable for reducing the noise when the air inlet, improves the use experience of breathing machine.

Description

Technical Field

[0001] This utility model relates to the field of ventilator technology, and mainly to a noise reduction chamber for a ventilator. Background Technology

[0002] Ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used in anesthesia respiratory management, respiratory support therapy, and emergency resuscitation. A ventilator uses a fan to draw in air, which is then delivered to the user through a humidifier.

[0003] When a ventilator is in use, the internal fan draws in external air and pressurizes it to expel it. This process involves drastic changes in parameters such as gas velocity and pressure, which can generate significant noise and affect the user's experience. Utility Model Content

[0004] This invention aims to solve at least one problem existing in the prior art. Therefore, the purpose of this invention is to provide a noise-reducing chamber for a ventilator, which can effectively reduce the noise of gas flow and improve the user experience.

[0005] To achieve the above objectives, this utility model proposes: A noise reduction chamber for a ventilator includes a main body with an irregular air inlet duct inside. One end of the air inlet duct is a noise reduction chamber, and a noise reducer is installed in the noise reduction chamber. The noise reducer has several noise reduction through holes.

[0006] Preferably, the noise reduction device includes a noise reduction bracket and a noise reduction cylinder with an integrated structure, and both the noise reduction bracket and the noise reduction cylinder are provided with a number of noise reduction through holes.

[0007] Preferably, the noise reduction bracket has a hollow structure with a cavity forming inside that runs through the upper and lower ends of the noise reduction bracket, and the noise reduction cylinder is inserted into the noise reduction bracket.

[0008] Preferably, a small cylindrical tube is provided inside one end of the noise reduction cylinder. The small cylindrical tube has a hollow structure, and several connecting rods are provided between the noise reduction cylinder and the small cylindrical tube.

[0009] Preferably, the noise reduction bracket has a contact surface at both the front end and the side, and the contact surface has a planar structure.

[0010] Preferably, the noise reduction through hole on the noise reduction bracket is located on the rear end face of the noise reduction bracket.

[0011] Preferably, the noise reduction through holes on the noise reduction cylinder are symmetrically arranged above and below the noise reduction cylinder.

[0012] Preferably, one end of the noise-reducing cylinder extends out of the noise-reducing bracket, and the other end is flush with the noise-reducing bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention features a noise-reducing chamber with a noise reducer at the air inlet of the air intake duct. The noise reducer has several noise-reducing holes. When external air is drawn in by the fan, most of the noise generated will be absorbed and consumed by the noise reducer itself and the noise-reducing holes, greatly reducing the noise generated by the ventilator during use.

[0014] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0015] Figure 1 A 3D diagram of a ventilator; Figure 2 An exploded view of a ventilator; Figure 3 For the stereo noise reduction device Figure 1 ; Figure 4 For the stereo noise reduction device Figure 2 .

[0016] Figure label: 1. Main body, 2. Air inlet duct, 3. Noise reduction chamber, 4. Noise reducer, 41. Noise reduction through hole, 42. Noise reduction bracket, 421. Fitting surface, 43. Noise reduction cylinder, 44. Small column cylinder, 45. Connecting rod. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0019] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0020] Please refer to the following for details. Figure 1-4 A noise-reducing chamber 3 for a ventilator includes a main body 1. An irregular air inlet duct 2 is provided inside the main body 1. The air inlet end of the air inlet duct 2 is the noise-reducing chamber 3. A noise reducer 4 is provided in the noise-reducing chamber 3. The noise reducer 4 can be glued or ultrasonically welded to the noise-reducing chamber 3 of the main body 1. The noise reducer 4 is provided with several noise-reducing through holes 41. When the fan in the main body 1 is running, when external air can enter the air inlet duct 2 through the noise reducer 4 in the noise-reducing chamber 3, the air will flow in the noise reducer 4 and generate noise. Some of the noise will be reflected and consumed inside the noise reducer 4, and some of the noise will enter the noise-reducing through holes 41. When the sound passes through these noise-reducing through holes 41, it will rub against the material, causing the sound energy to be converted into heat energy and consumed, thereby achieving a sound absorption effect, which helps to reduce the noise during air intake and improve the user experience of the ventilator.

[0021] In this embodiment, the noise reduction device 4 includes a noise reduction bracket 42 and a noise reduction cylinder 43. Both the noise reduction bracket 42 and the noise reduction cylinder 43 are provided with a plurality of noise reduction through holes 41. The noise reduction bracket 42 and the noise reduction cylinder 43 are integrally injection molded into an integral structure. The integral structure of the noise reduction device 4 (noise reduction bracket 42 and noise reduction cylinder 43) has higher structural strength and better stability.

[0022] In this embodiment, the noise reduction bracket 42 is a hollow structure with a cavity forming inside that runs through the upper and lower ends of the noise reduction bracket 42. The noise reduction cylinder 43 is inserted into the noise reduction bracket 42. Some noise will also enter the cavity of the noise reduction bracket 42 through the noise reduction through hole 41 and be reflected and consumed inside the cavity of the noise reduction bracket 42, thereby improving the noise reduction effect.

[0023] In this embodiment, a small column 44 is provided inside one end of the noise reduction cylinder 43. The small column 44 has a hollow structure. Four connecting rods 45 are provided between the noise reduction cylinder 43 and the small column 44. Some gas will pass through the small column 44, and the generated noise will be absorbed by the small column 44, further reducing the noise.

[0024] In this embodiment, the front end and the side of the noise reduction bracket 42 are provided with a contact surface 421. The contact surface 421 is a planar structure. The contact surface 421 on the noise reduction bracket 42 can fit with the inner wall of the main body 1 to form a stable fit, which makes it easy to fix the noise reducer 4 in the noise reduction chamber 3.

[0025] In this embodiment, the noise reduction through hole 41 on the noise reduction bracket 42 is disposed on the rear end face of the noise reduction bracket 42.

[0026] In this embodiment, the noise reduction through holes 41 on the noise reduction cylinder 43 are symmetrically arranged above and below the noise reduction cylinder 43.

[0027] In this embodiment, one end of the noise-reducing tube 43 extends out of the noise-reducing bracket 42, and the other end is flush with the noise-reducing bracket 42.

[0028] In this embodiment, the noise reduction through hole 41 on the noise reduction bracket 42 is a hexagonal structure. It can be understood that the noise reduction through hole 41 on the noise reduction bracket 42 can also be a triangular, rectangular, circular or other polygonal structure.

[0029] In this embodiment, the noise reduction through hole 41 on the noise reduction cylinder 43 is a circular structure, and the noise reduction through hole 41 on the noise reduction cylinder 43 can also be a triangular, rectangular or polygonal structure.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A noise-reducing chamber for a ventilator, comprising a main body, wherein an irregular air inlet duct is provided inside the main body, characterized in that, One end of the air inlet is a noise reduction chamber, which contains a noise reducer with several noise reduction through holes.

2. The ventilator noise reduction chamber according to claim 1, characterized in that, The noise reduction device includes an integrated noise reduction bracket and a noise reduction cylinder, both of which are provided with several noise reduction through holes.

3. The ventilator noise reduction chamber according to claim 2, characterized in that, The noise reduction bracket has a hollow structure with a cavity inside that runs through the upper and lower ends of the noise reduction bracket, and the noise reduction cylinder is installed in the noise reduction bracket.

4. The ventilator noise reduction chamber according to claim 3, characterized in that, A small cylindrical tube is provided inside one end of the noise reduction cylinder. The small cylindrical tube has a hollow structure, and several connecting rods are provided between the noise reduction cylinder and the small cylindrical tube.

5. The ventilator noise reduction chamber according to claim 2, characterized in that, The noise reduction bracket has a contact surface at its front end and on its sides, and the contact surface has a planar structure.

6. The ventilator noise reduction chamber according to any one of claims 2-5, characterized in that, The noise reduction through-hole on the noise reduction bracket is located on the rear end face of the noise reduction bracket.

7. The ventilator noise reduction chamber according to any one of claims 2-5, characterized in that, The noise reduction holes on the noise reduction cylinder are symmetrically arranged on the upper and lower parts of the noise reduction cylinder.

8. The ventilator noise reduction chamber according to any one of claims 2-5, characterized in that, One end of the noise-reducing tube extends out of the noise-reducing bracket, and the other end is flush with the noise-reducing bracket.

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