WO2021248719A1 - Silencing device - Google Patents

Silencing device Download PDF

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Publication number
WO2021248719A1
WO2021248719A1 PCT/CN2020/114243 CN2020114243W WO2021248719A1 WO 2021248719 A1 WO2021248719 A1 WO 2021248719A1 CN 2020114243 W CN2020114243 W CN 2020114243W WO 2021248719 A1 WO2021248719 A1 WO 2021248719A1
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WO
WIPO (PCT)
Prior art keywords
module
muffler
air
blower
air outlet
Prior art date
Application number
PCT/CN2020/114243
Other languages
French (fr)
Chinese (zh)
Inventor
乐志超
张佳
赵帅
郭建明
朱晶
杜文芝
李鑫
朱婷婷
Original Assignee
江苏鱼跃医疗设备股份有限公司
江苏鱼跃信息系统有限公司
南京鱼跃软件技术有限公司
苏州医疗用品厂有限公司
苏州鱼跃医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏鱼跃医疗设备股份有限公司, 江苏鱼跃信息系统有限公司, 南京鱼跃软件技术有限公司, 苏州医疗用品厂有限公司, 苏州鱼跃医疗科技有限公司 filed Critical 江苏鱼跃医疗设备股份有限公司
Priority to DE212020000553.2U priority Critical patent/DE212020000553U1/en
Publication of WO2021248719A1 publication Critical patent/WO2021248719A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/42—Reducing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the present invention belongs to the field of medical equipment, and in particular relates to a silencer device used on a continuous positive airway pressure device.
  • a silencer device used on a continuous positive airway pressure device.
  • its application in a continuous positive airway pressure treatment device is described, but it should be understood that the features of the present invention will include Used in other fields.
  • the treatment device for continuous positive airway pressure usually includes a blower.
  • the blower generates negative pressure inside the blower through the high-speed rotation of its internal fan blades, and the continuous positive airway pressure treatment device.
  • the external air is continuously replenished through the air inlet. After the air enters the continuous positive airway pressure treatment device from the air inlet, it will first pass through a section of airway and reach the chamber where the blower is located.
  • the blower passes through the humidification tank or directly Input to the patient end.
  • the noise produced by continuous positive airway pressure treatment equipment is mainly caused by the above two reasons: the broadband noise generated by the blower itself when it is working, and the wind noise generated by the air passing through the air duct.
  • the present invention designs a muffler device for continuous positive airway pressure therapy equipment.
  • a muffler device mainly includes an air duct module, a blower, and a muffler module.
  • the air duct module includes an air duct main body in the form of a cavity.
  • the air duct main body is provided with an air inlet end and an air outlet end.
  • the blower is installed in the air duct main body, and the air outlet of the blower is connected with the silencer module.
  • the cavity of the noise reduction module is separated by a partition with an opening.
  • the sound-absorbing module is assembled inside the humidifying tank, and the air outlet of the sound-absorbing module opens into the inside of the humidifying tank.
  • the air outlet of the humidification tank is arranged on the upper cover of the humidification tank.
  • one end of the air outlet end of the air duct module is connected to the air outlet of the blower, and the other end is connected to the air inlet of the muffler module.
  • the blower and the silencer module are both arranged in the air duct main body, and the air outlet of the silencer module is installed at the air outlet end of the air duct module.
  • the air outlet of the blower and the air inlet of the muffler module are sealed by a silicone ring.
  • the present invention has the following beneficial effects: the present invention can reduce the noise generated during the working process of the continuous positive airway pressure treatment device, and improve the user experience.
  • Fig. 1 is a component assembly diagram of a silencer module and an air duct module according to an embodiment of the present invention.
  • Fig. 2 is an exploded view of the components of the muffler module and the air duct module according to the embodiment of the present invention.
  • Fig. 3 is a cross-sectional view of the components of the muffler module and the air duct module according to the embodiment of the present invention.
  • Fig. 4 is a component assembly diagram of an embodiment of the present invention in which the silencer module is arranged inside the humidification tank.
  • Fig. 5 is an exploded view of the components of the muffler module arranged inside the humidification tank according to the embodiment of the present invention.
  • Fig. 6 is a sectional view of the components of the muffler module arranged inside the humidification tank according to the embodiment of the present invention.
  • Fig. 7 is a component assembly diagram of an embodiment of the present invention in which the muffler module is arranged inside the air duct module.
  • Fig. 8 is an exploded view of the components of the muffler module arranged inside the air duct module according to the embodiment of the present invention.
  • Fig. 9 is a sectional view of the components of the muffler module arranged inside the air duct module according to the embodiment of the present invention.
  • FIG. 1 shows an assembly diagram of the air duct module and the noise reduction module 3
  • FIG. 2 shows an exploded view of the air duct module and the noise reduction module 3.
  • the air duct module includes an air duct main body 1 and an air duct upper cover 4.
  • the air duct main body 1 is a cavity.
  • the air duct main body 1 is provided with an air inlet 5 and an air outlet 11, and the blower 2 is installed in the air duct main body 1.
  • the air outlet of 2 is connected to the silencer module 3, and the silencer module 3 is provided with one or more chambers, and the duct section of the cavity is larger than the air outlet section of the blower 2.
  • the chambers of the silencer module 3 are arranged in a cylindrical shape and arranged side by side in 4 groups, namely the first chamber 3-1, the second chamber 3-2, the third chamber 3-3, the fourth chamber 3-4, and one of the chambers. They are separated by partitions with openings.
  • One end of the air outlet end 11 of the air duct module is connected to the air outlet of the blower 2, and the other end is connected to the air inlet of the muffler module 3.
  • the air outlet of the blower 2 and the air inlet of the muffler module 3 are sealed by a silicone ring 7.
  • Fig. 3 is a cross-sectional view.
  • the air is sucked into the air duct main body 1 through the air inlet on the top of the air duct module and the air duct upper cover 4, and the air inlet of the blower 2 is arranged at the bottom.
  • the fan blades inside the blower 2 rotate at a high speed to generate negative pressure, and the blower 2 sucks in air from the air inlet at the bottom and outputs it to the muffler module 3.
  • sound waves enter the muffler module 3 from the same direction.
  • the sudden expansion of the pipe section causes a sudden change in the acoustic impedance inside the channel and the propagation of sound waves.
  • the sudden change of direction produces reflection and interference phenomenon in the cavity, so as to achieve the purpose of noise reduction.
  • Example 2 Figures 4 to 6 show the implementation in which the noise reduction module 3 is assembled inside the humidification tank, and the others are the same as in Example 1.
  • Fig. 5 it is an exploded view, which includes the air duct main body 1, the air duct upper cover 4, the blower 2, the silicone ring 7, the humidification tank upper cover 9, the muffler module 3, and the humidification tank main body 8.
  • the silencer module 3 is assembled inside the humidification tank, and the air outlet 6 of the silencer module 3 opens into the interior of the humidification tank body 8.
  • the air outlet 10 of the humidification tank is arranged on the upper cover 9 of the humidification tank.
  • Figure 6 is a cross-sectional view.
  • the fan blades inside the blower 2 rotate at a high speed to generate negative pressure.
  • the gas is sucked into the air duct body 1 through the air inlet, and the blower 2 sucks the gas and outputs it to the muffler module 3.
  • the muffler module 3 Set in the humidification tank body 8.
  • sound waves enter the muffler module 3 from the same direction.
  • the sudden expansion of the pipe section causes a sudden change in the acoustic impedance inside the channel and the propagation of sound waves.
  • the sudden change of direction produces reflection and interference phenomenon in the cavity, so as to achieve the purpose of noise reduction.
  • Embodiment 3 Figures 7 to 9 are implementations in which the muffler module 3 is assembled inside the air duct module.
  • the blower 2 and the muffler module 3 are both arranged in the air duct main body 1 of the air duct module, and the air outlet 6 of the muffler module 3 is installed at the air outlet 11 of the air duct module.
  • Figure 8 shows the exploded view.
  • Fig. 9 is a cross-sectional view.
  • the fan blades inside the blower 2 rotate at a high speed to generate negative pressure.
  • sound waves enter the muffler module 3 from the same direction.
  • the sudden expansion of the pipe section causes a sudden change in the acoustic impedance inside the channel and the propagation of sound waves.
  • the sudden change of direction produces reflection and interference phenomenon in the cavity, so as to achieve the purpose of noise reduction.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
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  • General Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
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Abstract

A silencing device, comprising an air duct module, an air blower (2) and a silencing module (3). The air duct module comprises a cavity; an air inlet end (5) and an air outlet end (11) are arranged on the cavity; the air blower (2) is installed in the cavity of the air duct module; an air outlet of the air blower (2) is connected to the silencing module (3); one or more cavities are provided in the silencing module (3); and the cross-section of a pipeline of the cavities is greater than the cross-section of the air outlet of the air blower. When gas enters the silencing module, a sound wave enters the silencing module from the same direction at the same time. Because of sudden expansion of the cross-section of the pipeline, a sudden change occurs to acoustic impedance inside a passage, and a sudden change occurs to the transmission direction of the sound wave and reflection and interference are caused in the cavities, thereby achieving the purpose of silencing.

Description

一种消音装置A muffler device 技术领域Technical field
本发明属于医疗器械领域，尤其涉及一种用于连续气道正压通气器械上的消音装置，这里描述其在连续气道正压通气治疗设备中的应用，但是应当理解本发明的特征将包含应用于其它领域的用途。The present invention belongs to the field of medical equipment, and in particular relates to a silencer device used on a continuous positive airway pressure device. Here, its application in a continuous positive airway pressure treatment device is described, but it should be understood that the features of the present invention will include Used in other fields.
背景技术Background technique
用于持续气道正压通气治疗设备通常包含一鼓风机，鼓风机通过其内部的风机叶片高速旋转在其内部形成负压，持续气道正压通气治疗设备。外部的空气通过进气口源源不断的补充进来，空气从进气口进入持续气道正压通气治疗设备之后会先经过一段气道，到达鼓风机所在的腔室，由鼓风机经由湿化罐或直接输入到患者端。持续气道正压通气治疗设备工作时候的产生的噪音主要由以上2种原因产生：鼓风机工作时候自身产生的宽频带噪音，以及空气通过风道产生的风噪。The treatment device for continuous positive airway pressure usually includes a blower. The blower generates negative pressure inside the blower through the high-speed rotation of its internal fan blades, and the continuous positive airway pressure treatment device. The external air is continuously replenished through the air inlet. After the air enters the continuous positive airway pressure treatment device from the air inlet, it will first pass through a section of airway and reach the chamber where the blower is located. The blower passes through the humidification tank or directly Input to the patient end. The noise produced by continuous positive airway pressure treatment equipment is mainly caused by the above two reasons: the broadband noise generated by the blower itself when it is working, and the wind noise generated by the air passing through the air duct.
因持续气道正压通气治疗设备使用环境大多是晚上，如果有持续存在的高分贝噪音存在，会影响用户的睡眠质量。因此，需要设计一种消音装置提高用户的使用体验。Because continuous positive airway pressure treatment equipment is used mostly at night, if there is persistent high-decibel noise, it will affect the user's sleep quality. Therefore, it is necessary to design a noise reduction device to improve the user experience.
发明内容Summary of the invention
针对上述技术问题，本发明设计一种用于持续气道正压通气治疗设备上的消音装置。In view of the above technical problems, the present invention designs a muffler device for continuous positive airway pressure therapy equipment.
本发明采用的技术方案为：The technical scheme adopted by the present invention is:
一种消音装置，主要包括风道模块、鼓风机、消音模块。A muffler device mainly includes an air duct module, a blower, and a muffler module.
风道模块包括一呈腔体的风道主体，在风道主体上设置进气端和出气端，鼓风机安装在风道主体内，鼓风机的出气口与消音模块连接，消音模块中设置有一个或多个腔室，腔室的管道截面大于鼓风机的出气口截面。The air duct module includes an air duct main body in the form of a cavity. The air duct main body is provided with an air inlet end and an air outlet end. The blower is installed in the air duct main body, and the air outlet of the blower is connected with the silencer module. There are multiple chambers, and the duct section of the chamber is larger than the air outlet section of the blower.
进一步的，消音模块的腔室通过带有开孔的隔板隔开。Further, the cavity of the noise reduction module is separated by a partition with an opening.
进一步的，消音模块装配在湿化罐内部，消音模块的出气口通入湿化罐内部。Further, the sound-absorbing module is assembled inside the humidifying tank, and the air outlet of the sound-absorbing module opens into the inside of the humidifying tank.
进一步的，湿化罐的出气口设置在湿化罐上盖上。Further, the air outlet of the humidification tank is arranged on the upper cover of the humidification tank.
进一步的，风道模块的出气端一端连接鼓风机的出气口，另一端连接消音模块的进气口。Further, one end of the air outlet end of the air duct module is connected to the air outlet of the blower, and the other end is connected to the air inlet of the muffler module.
作为一种优选方式，鼓风机和消音模块均设置在风道主体中，消音模块的出气口安装在风道模块的出气端。As a preferred manner, the blower and the silencer module are both arranged in the air duct main body, and the air outlet of the silencer module is installed at the air outlet end of the air duct module.
进一步的，以上所述的消音装置，鼓风机的出气口与消音模块的进气口之间通过硅胶圈密封。Further, in the above-mentioned muffler device, the air outlet of the blower and the air inlet of the muffler module are sealed by a silicone ring.
当气体进入消音模块的同时，声波从同一方向进入消音模块，由于管道截面的突然扩张，造成通道内部的声音阻抗发生突变，声波的传播方向产生突变在腔室内发生反射及干涉现象，从而达到消声的目的。When the gas enters the muffler module, sound waves enter the muffler module from the same direction. Due to the sudden expansion of the pipe section, the sound impedance inside the channel changes suddenly, and the sound wave propagation direction produces a sudden change in the cavity to reflect and interfere, so as to achieve the elimination. The purpose of the sound.
本发明具有以下有益效果：本发明能够降低持续气道正压通气治疗设备工作过程 中产生的噪音，提高用户体验。The present invention has the following beneficial effects: the present invention can reduce the noise generated during the working process of the continuous positive airway pressure treatment device, and improve the user experience.
附图说明Description of the drawings
图1为本发明实施例的消音模块与风道模块的组件装配图。Fig. 1 is a component assembly diagram of a silencer module and an air duct module according to an embodiment of the present invention.
图2为本发明实施例的消音模块与风道模块的组件爆炸图。Fig. 2 is an exploded view of the components of the muffler module and the air duct module according to the embodiment of the present invention.
图3为本发明实施例的消音模块与风道模块的组件剖面图。Fig. 3 is a cross-sectional view of the components of the muffler module and the air duct module according to the embodiment of the present invention.
图4为本发明实施例的消音模块设置于湿化罐内部的组件装配图。Fig. 4 is a component assembly diagram of an embodiment of the present invention in which the silencer module is arranged inside the humidification tank.
图5为本发明实施例的消音模块设置于湿化罐内部的组件爆炸图。Fig. 5 is an exploded view of the components of the muffler module arranged inside the humidification tank according to the embodiment of the present invention.
图6为本发明实施例的消音模块设置于湿化罐内部的组件剖面图。Fig. 6 is a sectional view of the components of the muffler module arranged inside the humidification tank according to the embodiment of the present invention.
图7为本发明实施例的消音模块设置于风道模块内部的组件装配图。Fig. 7 is a component assembly diagram of an embodiment of the present invention in which the muffler module is arranged inside the air duct module.
图8为本发明实施例的消音模块设置于风道模块内部的组件爆炸图。Fig. 8 is an exploded view of the components of the muffler module arranged inside the air duct module according to the embodiment of the present invention.
图9为本发明实施例的消音模块设置于风道模块内部的组件剖面图。Fig. 9 is a sectional view of the components of the muffler module arranged inside the air duct module according to the embodiment of the present invention.
具体实施方式detailed description
为了便于本领域技术人员的理解，下面结合实施例与附图对本发明作进一步的说明。In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with embodiments and drawings.
实施例1：图1所示为风道模块及消音模块3的装配图，如图2所示为风道模块与消音模块3的爆炸图。Embodiment 1: FIG. 1 shows an assembly diagram of the air duct module and the noise reduction module 3, and FIG. 2 shows an exploded view of the air duct module and the noise reduction module 3.
风道模块包括一风道主体1和风道上盖4，风道主体1呈一个腔体，在风道主体1上设置进气端5和出气端11，鼓风机2安装在风道主体1内，鼓风机2的出气口与消音模块3连接，消音模块3中设置有一个或多个腔室，腔室的管道截面大于鼓风机2的出气口截面。The air duct module includes an air duct main body 1 and an air duct upper cover 4. The air duct main body 1 is a cavity. The air duct main body 1 is provided with an air inlet 5 and an air outlet 11, and the blower 2 is installed in the air duct main body 1. The air outlet of 2 is connected to the silencer module 3, and the silencer module 3 is provided with one or more chambers, and the duct section of the cavity is larger than the air outlet section of the blower 2.
消音模块3的腔室呈圆柱状并列设置4组，即第一腔室3-1，第二腔室3-2，第三腔室3-3，第四腔室3-4，腔室之间通过带有开孔的隔板隔开。The chambers of the silencer module 3 are arranged in a cylindrical shape and arranged side by side in 4 groups, namely the first chamber 3-1, the second chamber 3-2, the third chamber 3-3, the fourth chamber 3-4, and one of the chambers. They are separated by partitions with openings.
风道模块的出气端11一端连接鼓风机2的出气口，另一端连接消音模块3的进气口。One end of the air outlet end 11 of the air duct module is connected to the air outlet of the blower 2, and the other end is connected to the air inlet of the muffler module 3.
鼓风机2的出气口与消音模块3的进气口之间通过硅胶圈7密封。The air outlet of the blower 2 and the air inlet of the muffler module 3 are sealed by a silicone ring 7.
如图3所示为剖面图，气体通过风道模块顶部、风道上盖4上的进气口吸入到风道主体1中，而鼓风机2的进气口设置在底部。Fig. 3 is a cross-sectional view. The air is sucked into the air duct main body 1 through the air inlet on the top of the air duct module and the air duct upper cover 4, and the air inlet of the blower 2 is arranged at the bottom.
鼓风机2内部的扇叶高速转动产生负压，鼓风机2从底部的进气口吸入气体输出到消音模块3。消音模块3中设置有一个或多个腔室，当气体进入消音模块3的同时，声波从同一方向进入消音模块3，由于管道截面的突然扩张，造成通道内部的声音阻抗发生突变，声波的传播方向产生突变在腔室内发生反射及干涉现象，从而达到消声的目的。The fan blades inside the blower 2 rotate at a high speed to generate negative pressure, and the blower 2 sucks in air from the air inlet at the bottom and outputs it to the muffler module 3. There are one or more chambers in the muffler module 3. When the gas enters the muffler module 3, sound waves enter the muffler module 3 from the same direction. The sudden expansion of the pipe section causes a sudden change in the acoustic impedance inside the channel and the propagation of sound waves. The sudden change of direction produces reflection and interference phenomenon in the cavity, so as to achieve the purpose of noise reduction.
实施例2：如图4～图6为消音模块3装配在湿化罐内部的实施方案，其他同实施例1。如图5所示为爆炸图，包含风道主体1、风道上盖4、鼓风机2、硅胶圈7、湿化罐上盖9、消音模块3、湿化罐主体8。消音模块3装配在湿化罐内部，消音模块3出气口6通入湿化罐主体8内部。湿化罐出气口10设置在湿化罐上盖9上。Example 2: Figures 4 to 6 show the implementation in which the noise reduction module 3 is assembled inside the humidification tank, and the others are the same as in Example 1. As shown in Fig. 5, it is an exploded view, which includes the air duct main body 1, the air duct upper cover 4, the blower 2, the silicone ring 7, the humidification tank upper cover 9, the muffler module 3, and the humidification tank main body 8. The silencer module 3 is assembled inside the humidification tank, and the air outlet 6 of the silencer module 3 opens into the interior of the humidification tank body 8. The air outlet 10 of the humidification tank is arranged on the upper cover 9 of the humidification tank.
如图6所示为剖面图，鼓风机2内部的扇叶高速转动产生负压，气体通过进气口吸入到风道主体1中，鼓风机2吸入气体输出到消音模块3中，此时消音模块3设置于湿化罐主体8中。消音模块3中设置有一个或多个腔室，当气体进入消音模块3的同时，声波从同一方 向进入消音模块3，由于管道截面的突然扩张，造成通道内部的声音阻抗发生突变，声波的传播方向产生突变在腔室内发生反射及干涉现象，从而达到消声的目的。Figure 6 is a cross-sectional view. The fan blades inside the blower 2 rotate at a high speed to generate negative pressure. The gas is sucked into the air duct body 1 through the air inlet, and the blower 2 sucks the gas and outputs it to the muffler module 3. At this time, the muffler module 3 Set in the humidification tank body 8. There are one or more chambers in the muffler module 3. When the gas enters the muffler module 3, sound waves enter the muffler module 3 from the same direction. The sudden expansion of the pipe section causes a sudden change in the acoustic impedance inside the channel and the propagation of sound waves. The sudden change of direction produces reflection and interference phenomenon in the cavity, so as to achieve the purpose of noise reduction.
实施例3：如图7～图9为消音模块3装配在风道模块内部的实施方案。鼓风机2和消音模块3均设置在风道模块的风道主体1中，消音模块3出气口6安装在风道模块的出气端11。如图8所示为爆炸图。Embodiment 3: Figures 7 to 9 are implementations in which the muffler module 3 is assembled inside the air duct module. The blower 2 and the muffler module 3 are both arranged in the air duct main body 1 of the air duct module, and the air outlet 6 of the muffler module 3 is installed at the air outlet 11 of the air duct module. Figure 8 shows the exploded view.
如图9所示为剖面图，鼓风机2内部的扇叶高速转动产生负压，气体通过进气口吸入到风道主体1中，鼓风机2吸入气体输出到消音模块3。消音模块3中设置有一个或多个腔室，当气体进入消音模块3的同时，声波从同一方向进入消音模块3，由于管道截面的突然扩张，造成通道内部的声音阻抗发生突变，声波的传播方向产生突变在腔室内发生反射及干涉现象，从而达到消声的目的。Fig. 9 is a cross-sectional view. The fan blades inside the blower 2 rotate at a high speed to generate negative pressure. There are one or more chambers in the muffler module 3. When the gas enters the muffler module 3, sound waves enter the muffler module 3 from the same direction. The sudden expansion of the pipe section causes a sudden change in the acoustic impedance inside the channel and the propagation of sound waves. The sudden change of direction produces reflection and interference phenomenon in the cavity, so as to achieve the purpose of noise reduction.
以上的实施例仅为说明本发明的技术思想，不能以此限定本发明的保护范围，凡是按照本发明提出的技术思想，在技术方案基础上所做的任何改动，均落入本发明保护范围之内。The above embodiments are only to illustrate the technical ideas of the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solutions according to the technical ideas proposed by the present invention fall into the protection scope of the present invention. within.

Claims (9)

  1. 一种消音装置，其特征在于：包括风道模块，鼓风机，消音模块；A muffler device, which is characterized in that it comprises an air duct module, a blower, and a muffler module;
    风道模块包括一呈腔体的风道主体，在风道主体上设置进气端和出气端，鼓风机安装在风道主体内，鼓风机的出气口与消音模块连接，消音模块中设置有一个或多个腔室，腔室的管道截面大于鼓风机的出气口截面。The air duct module includes an air duct main body in the form of a cavity. The air duct main body is provided with an air inlet end and an air outlet end. The blower is installed in the air duct main body, and the air outlet of the blower is connected with the silencer module. There are multiple chambers, and the duct section of the chamber is larger than the air outlet section of the blower.
  2. 根据权利要求1所述的消音装置，其特征在于：消音模块的腔室通过带有开孔的隔板隔开。The muffler device according to claim 1, wherein the chamber of the muffler module is separated by a partition with an opening.
  3. 根据权利要求1所述的消音装置，其特征在于：消音模块装配在湿化罐内部，消音模块的出气口通入湿化罐内部。The muffler device according to claim 1, wherein the muffler module is assembled inside the humidification tank, and the air outlet of the muffler module opens into the inside of the humidification tank.
  4. 根据权利要求3所述的消音装置，其特征在于：湿化罐的出气口设置在湿化罐上盖上。The silencer according to claim 3, wherein the air outlet of the humidification tank is arranged on the upper cover of the humidification tank.
  5. 根据权利要求1至4中任一所述的消音装置，其特征在于：风道模块的出气端一端连接鼓风机的出气口，另一端连接消音模块的进气口。The silencer device according to any one of claims 1 to 4, wherein one end of the air outlet end of the air duct module is connected to the air outlet of the blower, and the other end is connected to the air inlet of the silencer module.
  6. 根据权利要求5所述的消音装置，其特征在于：鼓风机的出气口与消音模块的进气口之间通过硅胶圈密封。The muffler device according to claim 5, wherein the air outlet of the blower and the air inlet of the muffler module are sealed by a silicone ring.
  7. 根据权利要求1至4中任一所述的消音装置，其特征在于：鼓风机的出气口与消音模块的进气口之间通过硅胶圈密封。The muffler device according to any one of claims 1 to 4, wherein the air outlet of the blower and the air inlet of the muffler module are sealed by a silicone ring.
  8. 根据权利要求1或2所述的消音装置，其特征在于：鼓风机和消音模块均设置在风道主体中，消音模块的出气口安装在风道模块的出气端。The muffler device according to claim 1 or 2, wherein the blower and the muffler module are both arranged in the air duct main body, and the air outlet of the muffler module is installed at the air outlet end of the air duct module.
  9. 根据权利要求8所述的消音装置，其特征在于：鼓风机的出气口与消音模块的进气口之间通过硅胶圈密封。8. The muffler device according to claim 8, wherein the air outlet of the blower and the air inlet of the muffler module are sealed by a silicone ring.
PCT/CN2020/114243 2020-06-12 2020-09-09 Silencing device WO2021248719A1 (en)

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JP2006230813A (en) * 2005-02-25 2006-09-07 Ngk Spark Plug Co Ltd Oxygen concentrator
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