WO2021248720A1 - 一种消音流道装置 - Google Patents

一种消音流道装置 Download PDF

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Publication number
WO2021248720A1
WO2021248720A1 PCT/CN2020/114248 CN2020114248W WO2021248720A1 WO 2021248720 A1 WO2021248720 A1 WO 2021248720A1 CN 2020114248 W CN2020114248 W CN 2020114248W WO 2021248720 A1 WO2021248720 A1 WO 2021248720A1
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WIPO (PCT)
Prior art keywords
flow channel
chamber
sound
absorbing
baffle
Prior art date
Application number
PCT/CN2020/114248
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English (en)
French (fr)
Inventor
朱晶
张佳
郭建明
乐志超
杜文芝
李鑫
赵帅
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
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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 DE212020000550.8U priority Critical patent/DE212020000550U1/de
Publication of WO2021248720A1 publication Critical patent/WO2021248720A1/zh

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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
    • 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
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations

Definitions

  • the invention belongs to the field of medical equipment, and in particular relates to a sound-absorbing channel device used in a ventilator.
  • the application in the ventilator device is described here, but it should be understood that the features of the present invention can not only be applied to other fields as a separate module, for example: the silencer of an invasive ventilator; it can also be used as a combined part in the ventilator device.
  • the working principle of the ventilator is mainly by driving a blower to generate a positive airflow into the patient port.
  • noise is inevitably produced. Since the application scenario of the ventilator usually involves the patient's sleep, how to control the noise of the ventilator to a minimum range has always been an important problem in the field of ventilator.
  • the main sources of noise are: 1. The vibration and rotating mechanical sound generated by the blower when it is working; 2. The wind noise generated by the gas in the flow channel and pipeline.
  • most of the silencing schemes of ventilators are: 1. Use porous materials such as sponge to absorb sound; 2. Use flexible materials such as silica gel to dampen the vibration source; 3. Use long flow channels or arc-shaped channels for sound insulation.
  • Porous materials have poor stability, and large-area use leads to a large noise reduction system; 2. Excessively long airways cause the airway system to be unable to flexibly change direction, which seriously reduces the output efficiency of positive pressure gas .
  • the present invention relates to solving the problem of controlling the noise generated by the blower and gas in the ventilator within the minimum range; on the other hand, it relates to solving the problem of controlling the volume of the noise reduction system and improving the output efficiency of positive pressure gas. .
  • the present invention provides a sound-absorbing flow channel device, which includes a sound-absorbing flow channel main body 6 and an air flow generator 3.
  • the silencer flow passage main body 6 is provided with a divided partition 60, which divides the silencer passage main body into a first chamber 61 and a second chamber 62; the divided partition 60 is provided with a second chamber air inlet 6202; A gas flow channel connecting the air inlet on the muffler flow channel main body 6 and the air inlet 6202 of the second chamber is formed in the chamber 61; the air flow generator 3 is installed in the second chamber 62.
  • gas flow channel is a single flow channel, which is guided to the air inlet 6202 of the second chamber in a ring shape.
  • baffle 623 and/or porous material 7 of the first chamber are provided outside the air inlet 6202 of the second chamber.
  • the opening of the baffle 623 is close to the opening of the gas flow channel; the first cavity porous material 7 is used to fill the space between the baffle 623 and the gas flow channel.
  • gas flow channel is a split flow channel, and the gas flow channel is guided to the air inlet 6202 of the second chamber through the opening of the split flow channel.
  • baffle 623 and/or porous material 7 of the first chamber are provided outside the air inlet 6202 of the second chamber.
  • the opening of the baffle 623 is far away from the opening of the shunt flow channel; the porous material 7 of the first chamber is arranged corresponding to the opening of the baffle 623.
  • the side wall of the gas flow channel is provided with a sound-absorbing baffle with sound-absorbing characteristics.
  • the sound-absorbing baffle is a flat baffle that is inclined along the gas flow direction.
  • the sound-absorbing baffle is an arc-shaped curved baffle that is curved along the gas flow direction.
  • the sound-absorbing baffle is a U-shaped baffle connected to the two side walls of the gas flow channel, and the two side elevations of the U-shaped baffle are inclined along the gas flow direction.
  • the sound-absorbing baffle is symmetrically arranged along the center line of the gas flow channel.
  • the airflow generator 3 is suspended in the second chamber 62 through the flexible support 12 and/or the second chamber porous material 12.
  • the airflow generator 3 is equipped with a bracket 4 which is installed in the second chamber 62 through at least two flexible brackets 12 and the second chamber porous material 12.
  • a flow detection element 9 is installed in the air inlet on the main body 6 of the muffler flow channel.
  • the principle of the gas flow direction of the silencer channel device the gas enters from the air inlet, flows through the flow detection element 9 in the air inlet pipe, enters the gas flow channel of the first chamber 61, and enters the air inlet of the second chamber through the baffle 623 At 6202, the gas enters the second chamber 62 from the first chamber 61, and is sucked in by the air inlet end of the blower 3. The gas is compressed and rotated and flows out through the air outlet.
  • the present invention has the following beneficial effects:
  • the present invention provides a sound-absorbing flow channel device, which is provided with a sound-absorbing baffle solution, combined with the flexible support of the airflow generator, which effectively reduces the noise of the ventilator;
  • a shunt flow channel is provided in the first chamber , Reduce the gas flow rate, so as to achieve the noise reduction effect;
  • the shunt flow channel reduces the volume of the noise reduction system and improves the output efficiency of the positive pressure gas.
  • Fig. 1 is a top view of the noise reduction channel solution 1 of an embodiment of the present invention.
  • Fig. 2 is a perspective view and a partial enlarged view of the noise reduction channel solution 1 of the embodiment of the present invention.
  • Fig. 3 is a top view of the noise reduction channel solution 2 of the embodiment of the present invention.
  • Fig. 4 is a perspective view and a partial enlarged view of the noise reduction channel solution 2 of the embodiment of the present invention.
  • Fig. 5 is a top view of the noise reduction channel solution 3 of the embodiment of the present invention.
  • Fig. 6 is a perspective view and a partial enlarged view of the noise reduction channel solution 3 of the embodiment of the present invention.
  • Fig. 7 is a three-dimensional perspective view of the noise reduction channel solution 1 of the embodiment of the present invention.
  • Fig. 8 is a bottom perspective view of the noise reduction channel solution 1 of an embodiment of the present invention.
  • FIG. 9 is a three-dimensional streamline diagram of the device module of the noise reduction channel solution 1 of the embodiment of the present invention.
  • Fig. 10 is a top view of the split-flow combined noise-elimination channel solution 1 according to an embodiment of the present invention.
  • Fig. 11 is a perspective view of the split-flow combined noise-elimination channel solution 1 according to an embodiment of the present invention.
  • FIG. 12 is a three-dimensional streamline diagram of the device module of the shunt combined with noise-absorbing flow channel solution 1 according to an embodiment of the present invention.
  • Fig. 13 is a top view of the muffler flow channel device according to the embodiment of the present invention.
  • Fig. 14 is a streamline diagram of the A-A section of Fig. 13.
  • Figure 15 is an exploded view of the components of the silencer runner device according to the embodiment of the present invention.
  • 1 is the upper cover
  • 2 is the seal
  • 3 is the airflow generator
  • 4 is the bracket
  • 5 is the air outlet
  • 6 is the main body of the muffler passage
  • 60 is the dividing partition
  • 61 is the first chamber
  • 62 is the first chamber.
  • Two chambers 621 is the boundary partition, 622 is the middle partition, 623 is the diversion partition, 624-1 is the first sound-absorbing partition plan, 624-2 is the second sound-absorbing partition, and 624-3 is the third Sound-absorbing baffle, 6201 is a single flow channel, 6202 is the air inlet of the second chamber, 630 is a splitter baffle, 6301 is a first split flow channel, 6302 is a second split flow channel, 7 is a porous material in the first chamber , 8 is the bottom cover, 9 is the flow detection element, 10 is the air inlet, 11 is the porous material of the second chamber, and 12 is the flexible support.
  • this embodiment provides a silencer flow channel device used inside the ventilator.
  • the silencer flow channel device is assembled by the upper cover 1, the blower 3, the silencer flow channel body 6, the bottom cover 8 and the sealing member 2. .
  • the main body 6 of the muffler flow path is provided with a partition plate 60, and the main body of the muffler flow path is divided into a first chamber 61 and a second chamber 62.
  • the first chamber 61 is provided with a middle partition 622, and the middle partition 622 and the boundary partition 621 form a single flow channel 6201; at the same time, a pair of first silencers with the same characteristics and symmetrical to the center line are provided in the single flow channel 6201
  • Diaphragm 624-1 (the first sound-absorbing diaphragm 624-1 is a flat diaphragm inclined along the gas flow direction) or the second sound-absorbing diaphragm plan 624-2 (the second sound-absorbing diaphragm plan 624-2 is along the gas flow direction Curved curved surface partition), or the sound-absorbing partition is set as a U-shaped partition, that is, the third sound-absorbing partition 624-3, connected between the middle partition 622 and the boundary partition 621, the U
  • the inner side of the middle partition 622 is provided with a diversion partition 623 and the first chamber porous material 7.
  • the second chamber 62 is equipped with an airflow generator 3.
  • the airflow generator 3 is a blower.
  • the airflow generator 3 is a blower.
  • the principle of the gas flow direction of the silencer channel device the gas enters from the air inlet, flows through the flow detection element in the air inlet pipe, enters the outer annular flow channel of the first chamber, and enters the second chamber through the baffle 623
  • the gas enters the second chamber from the first chamber, and is sucked in by the inlet end of the blower. The gas is compressed and rotated and flows out from the outlet.
  • this embodiment provides a silencer flow channel device for use inside a ventilator.
  • the silencer flow channel device is assembled by an upper cover 1, a blower 3, a silencer flow channel body 6, a bottom cover 8 and a sealing element.
  • the main body 6 of the muffler flow path is provided with a partition plate 60, and the main body of the muffler flow path is divided into a first chamber 61 and a second chamber 62.
  • the first chamber 61 is provided with a dividing wall 630, and the dividing wall 630 and the boundary dividing wall 621 form a first dividing flow channel 6301 and a second dividing flow channel 6302; at the same time, the first dividing flow channel
  • a pair of first sound-absorbing partition 624-1, second sound-absorbing partition 624-2, or third sound-absorbing partition 624-3 having the same characteristics and maintaining symmetry with the center line is provided in 6301 and second branch flow channel 6302.
  • the diversion diaphragm 630 is provided with a diversion diaphragm 623 and a first cavity porous material inside the diversion diaphragm 630, and the first cavity porous material 7 is provided corresponding to the opening of the diversion diaphragm 623.
  • the second chamber 62 is equipped with a blower 3, and a bracket 4 is installed on the blower 3, which is suspended in the second chamber 62 through at least two flexible brackets 12 and/or porous material of the second chamber.
  • the principle of the gas flow direction of the muffler flow channel device the gas enters from the air inlet, flows through the flow detection element in the inlet pipe, and enters the outer annular flow channel of the first chamber: the first branch flow channel 6301 and the second
  • the two-division flow channel 6302 enters the second chamber air inlet 6202 through the guide baffle 623.
  • the gas enters the second chamber from the first chamber and is sucked in by the air inlet end of the blower 3.
  • the gas is compressed and rotated through the air outlet Outflow.

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Abstract

一种消音流道装置，包括消音流道主体（6），气流发生器（3）；所述消音流道主体（6）设有分割隔板（60），将所述消音流道主体（6）分隔为第一腔室（61）和第二腔室（62）；所述分割隔板（60）上设有第二腔室进气口（6202）；第一腔室（61）内形成连通消音流道主体（6）上的进气口和第二腔室进气口（6202）的气体流道；第二腔室（62）内安装气流发生器（3）。该消音流道装置与现有降噪技术相比，有明显更优的降噪效果。

Description

一种消音流道装置 技术领域
本发明属于医疗器械领域，具体涉及一种用于呼吸机内部的消音流道装置。这里描述其在呼吸机设备中的应用，但是应当理解本发明的特征不仅可以作为单独模块应用于其他领域，例如：有创呼吸机的消音装置；也可作为呼吸机设备内的组合部分。
背景技术
近年来，随着环境污染加重(雾霾)以及特殊工种(暴露在粉尘工作环境下的工作这)的存在，越来越多的呼吸道肺部疾病产生，同时呼吸机作为一项能辅助自主呼吸的有效手段，在现代医学领域内占有十分重要的位置，因此无创呼吸机在个人家庭以及医院的使用率越来越高。
呼吸机工作原理主要通过驱动鼓风机产生正压的气流输入到病人端口。在呼吸机工作过程中，不可避免地产生噪声。由于呼吸机的应用场景通常涉及到病人的睡眠，故如何将呼吸机的噪音控制在最小范围，一直是呼吸机领域内的重要难题。
呼吸机工作时，噪音的主要来源：1、鼓风机工作时产生的振动、转动机械音；2、气体在流道以及管路中产生的风噪声。目前，大多数呼吸机的消音方案有：1、采用海绵等多孔状材料进行吸音；2、采用硅胶等柔性材料对振动源进行减振；3、采用长流道或弧形流道进行隔音。以上技术的缺点：1、多孔状材料稳定性较差，大面积使用导致降噪系统体积庞大；2、过长的气道导致气道系统无法灵活的变向，严重降低正压气体的输出效率。
发明内容
针对上述技术问题，本发明一方面涉及解决将呼吸机中的鼓风机和气体在流道内产生的噪音控制在最小范围内；另一方面涉及解决控制降噪系统的体积，提高正压气体的输出效率。
为达到上述目的，本发明采用的技术方案为：
本发明提供一种消音流道装置，包括消音流道主体6、气流发生器3。消音流道主体6设有分割隔板60，将该消音流道主体分隔为第一腔室61和第二腔室62；分割隔板60上设有第二腔室进气口6202；第一腔室61内形成连通消音流道主体6上的进气口和第二腔室进气口6202的气体流道；第二腔室62内安装气流发生器3。
一种优选方式为：气体流道为单流道，呈环形导向第二腔室进气口6202。
进一步的，第二腔室进气口6202外侧设置导流隔板623和/或第一腔室多孔材料7。
进一步的，导流隔板623的开口靠近气体流道的开口；使用第一腔室多孔材料7填充导流隔板623与气体流道之间的空间。
另一种优选方式为：气体流道为分流流道，通过分流流道的开口导向第二腔室进气口6202。
进一步的，第二腔室进气口6202外侧设置导流隔板623和/或第一腔室多孔材料7。
进一步的，导流隔板623的开口远离分流流道的开口；第一腔室多孔材料7对应导 流隔板623的开口设置。
为了进一步降低噪音，气体流道的侧壁上设有具有消音特征的消音隔板。
消音隔板为沿气体流动方向倾斜的平面隔板。或在其他方式中，消音隔板为沿气体流动方向弯曲的弧形曲面隔板。或在其他方式中，消音隔板为连接在气体流道两侧壁上的U形隔板，U形隔板的两侧立面沿气体流动方向倾斜。
进一步的，消音隔板沿气体流道中线对称设置。
进一步的，气流发生器3通过柔性支架12和/或第二腔室多孔材料12，悬挂于第二腔室62内。在优选方式中，气流发生器3装有支架4，通过至少两个柔性支架12和第二腔室多孔材料12安装在第二腔室62内。
进一步的，还包括用于监控气体流量的元件：消音流道主体6上的进气口内安装有流量检测元件9。
消音流道装置气体流向原理：气体从进气口进入，流经进气管内流量检测元件9，进入第一腔室61的气体流道，通过导流隔板623进入第二腔室进气口6202，气体由第一腔室61进入第二腔室62，被鼓风机3进气端吸入，气体经过压缩旋转，由出气口流出。
本发明具有以下有益效果：本发明提供一种消音流道装置，内部设置有消音隔板方案，结合气流发生器的柔性支架，有效降低了呼吸机的噪音；第一腔室内设有分流流道，降低气体流速，从而达到降噪效果；分流流道减小了降噪系统的体积，提高了正压气体的输出效率。以上两方面证明，本发明的消音流道装置与现有降噪技术相比，有明显更优的降噪效果。
附图说明
图1为本发明实施例的消音流道方案1的俯视图。
图2为本发明实施例的消音流道方案1的立体图和局部放大图。
图3为本发明实施例的消音流道方案2的俯视图。
图4为本发明实施例的消音流道方案2的立体图和局部放大图。
图5为本发明实施例的消音流道方案3的俯视图。
图6为本发明实施例的消音流道方案3的立体图和局部放大图。
图7为本发明实施例的消音流道方案1的立体透视图。
图8为本发明实施例的消音流道方案1的底部立体图。
图9为本发明实施例的消音流道方案1的装置模块的立体流线图。
图10为本发明实施例的分流结合消音流道方案1的俯视图。
图11为本发明实施例的分流结合消音流道方案1的立体图。
图12为本发明实施例的分流结合消音流道方案1的装置模块的立体图流线图。
图13为本发明实施例的消音流道装置的俯视图。
图14为图13的A-A剖面流线图。
图15为本发明实施例的消音流道装置零部件爆炸图。
图中：1为上盖，2为密封件，3为气流发生器，4为支架，5为出气口，6为消音流道主体，60为分割隔板，61第一腔室，62为第二腔室，621为边界隔板，622为中层隔板，623为导流隔板，624-1为第一消音隔板方案，624-2为第二消音隔板，624-3为第三消音隔板，6201为单 流道，6202为第二腔室进气口，630为分流隔板，6301为第一分流流道，6302为第二分流流道，7为第一腔室多孔材料，8为底盖，9为流量检测元件，10为进气口，11为第二腔室多孔材料，12为柔性支架。
具体实施方式
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。
实施例一
如图15所示，本实施例提供一种用于呼吸机内部的消音流道装置，消音流道装置由上盖1、鼓风机3、消音流道主体6、底盖8以及密封件2组装形成。
如图1至图9，消音流道主体6设有分割隔板60，将消音流道主体分为第一腔室61和第二腔室62。第一腔室61内设置有中层隔板622，中层隔板622与边界隔板621形成单流道6201；同时单流道6201内设置有一对具有相同特征，并与中线保持对称的第一消音隔板624-1(第一消音隔板624-1为沿气体流动方向倾斜的平面隔板)或第二消音隔板方案624-2(第二消音隔板方案624-2为沿气体流动方向弯曲的弧形曲面隔板)，或消音隔板设置为一U形隔板，即第三消音隔板624-3，连接于中层隔板622和边界隔板621之间，U形隔板的两侧立面沿气体流动方向倾斜。
中层隔板622内侧设置有导流隔板623和第一腔室多孔材料7。
如图15，第二腔室62内装有气流发生器3，本实施例中气流发生器3为鼓风机，鼓风机上装有支架4，通过至少两个柔性支架12和第二腔室多孔材料12，悬挂于第二腔室62内。
如图9，消音流道装置气体流向原理：气体从进气口进入，流经进气管内流量检测元件，进入第一腔室的外部环形流道，通过导流隔板623进入第二腔室进气口6202，气体由第一腔室进入第二腔室，被鼓风机进气端吸入，气体经过压缩旋转，由出气口流出。
实施例二
如图15所示，本实施例提供一种用于呼吸机内部的消音流道装置，消音流道装置由上盖1、鼓风机3、消音流道主体6、底盖8以及密封件组装形成。
如图7至图8，消音流道主体6设有分割隔板60，将消音流道主体分为第一腔室61和第二腔室62。如图10、图11，第一腔室61内设置有分流隔板630，分流隔板630与边界隔板621形成第一分流流道6301和第二分流流道6302；同时第一分流流道6301和第二分流流道6302内设置有一对具有相同特征，并与中线保持对称的第一消音隔板624-1或第二消音隔板624-2，或第三消音隔板624-3。
分流隔板630内侧设置有导流隔板623和第一腔室多孔材料，第一腔室多孔材料7对应所述导流隔板623的开口设置。
如图15，第二腔室62内装有鼓风机3，鼓风机3上装有支架4，通过至少两个柔性支架12和/或第二腔室多孔材料，悬挂于第二腔室62内。
如图12至图14，消音流道装置气体流向原理：气体从进气口进入，流经进气管内流量检测元件，进入第一腔室的外部环形流道：第一分流流道6301和第二分流流道6302，通过导流隔板623进入第二腔室进气口6202，气体由第一腔室进入第二腔室，被鼓风机3进气端吸入，气体经过压缩旋转，由出气口流出。
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。

Claims (10)

  1. 一种消音流道装置，其特征在于：包括消音流道主体(6)，气流发生器(3)；
    所述消音流道主体(6)设有分割隔板(60)，将所述消音流道主体(6)分隔为第一腔室(61)和第二腔室(62)；所述分割隔板(60)上设有第二腔室进气口(6202)；第一腔室(61)内形成连通消音流道主体(6)上的进气口和第二腔室进气口(6202)的气体流道；第二腔室(62)内安装气流发生器(3)。
  2. 根据权利要求1所述的消音流道装置，其特征在于：
    所述气体流道为单流道，呈环形导向所述第二腔室进气口(6202)。
  3. 根据权利要求2所述的消音流道装置，其特征在于：
    所述第二腔室进气口(6202)外侧设置导流隔板(623)和/或第一腔室多孔材料(7)；导流隔板(623)的开口靠近所述气体流道的开口；使用第一腔室多孔材料(7)填充所述导流隔板(623)与所述气体流道之间的空间。
  4. 根据权利要求1所述的消音流道装置，其特征在于：
    所述气体流道为分流流道，通过分流流道的开口导向所述第二腔室进气口(6202)。
  5. 根据权利要求4所述的消音流道装置，其特征在于：
    所述第二腔室进气口(6202)外侧设置导流隔板(623)和/或第一腔室多孔材料(7)；导流隔板(623)的开口远离分流流道的开口；第一腔室多孔材料(7)对应所述导流隔板(623)的开口设置。
  6. 根据权利要求1至5中任一所述的消音流道装置，其特征在于：
    所述气体流道的侧壁上设有具有消音特征的消音隔板。
  7. 根据权利要求6所述的消音流道装置，其特征在于：
    所述消音隔板为沿气体流动方向倾斜的平面隔板。
  8. 根据权利要求6所述的消音流道装置，其特征在于：
    所述消音隔板为沿气体流动方向弯曲的弧形曲面隔板。
  9. 根据权利要求6所述的消音流道装置，其特征在于：
    所述消音隔板为连接在气体流道两侧壁上的U形隔板，U形隔板的两侧立面沿气体流动方向倾斜。
  10. 根据权利要求1所述的消音流道装置，其特征在于：
    所述气流发生器(3)通过柔性支架(12)和/或第二腔室多孔材料(12)，悬挂于所述第二腔室(62)内；所述消音流道主体(6)上的进气口内安装有流量检测元件(9)。
PCT/CN2020/114248 2020-06-12 2020-09-09 一种消音流道装置 WO2021248720A1 (zh)

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CN111561484A (zh) * 2020-06-12 2020-08-21 江苏鱼跃医疗设备股份有限公司 一种消音流道装置
CN113081593B (zh) * 2021-03-10 2022-07-01 何君品 降噪密闭舱及呼吸辅助系统
CN113236606B (zh) * 2021-05-28 2023-06-06 湖南比扬医疗科技有限公司 消音箱及呼吸机
CN113701834B (zh) * 2021-07-29 2023-04-07 上海中核维思仪器仪表股份有限公司 气体超声流量计
CN217187320U (zh) * 2021-11-15 2022-08-16 江苏鱼跃医疗设备股份有限公司 一种呼吸机风机风道以及呼吸机
CN115591069A (zh) * 2022-10-31 2023-01-13 江苏鱼跃医疗设备股份有限公司（Cn） 一种呼吸机风道组件及便携式呼吸机

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