WO2023098674A1 - 进气结构、进气部件、减噪盒以及通气治疗设备 - Google Patents

进气结构、进气部件、减噪盒以及通气治疗设备 Download PDF

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Publication number
WO2023098674A1
WO2023098674A1 PCT/CN2022/135089 CN2022135089W WO2023098674A1 WO 2023098674 A1 WO2023098674 A1 WO 2023098674A1 CN 2022135089 W CN2022135089 W CN 2022135089W WO 2023098674 A1 WO2023098674 A1 WO 2023098674A1
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Prior art keywords
air
air intake
path
main
branch
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PCT/CN2022/135089
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English (en)
French (fr)
Inventor
智建鑫
庄志
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天津怡和嘉业医疗科技有限公司
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Publication of WO2023098674A1 publication Critical patent/WO2023098674A1/zh

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057Pumps therefor
    • A61M16/0066Blowers or centrifugal pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/42Reducing noise

Definitions

  • the invention relates to the technical field of gas path noise reduction, in particular to an air intake structure, an air intake component, a noise reduction box and ventilation treatment equipment.
  • the internal blades of the fan rotate at high speed to achieve continuous positive pressure to output gas, and the gas is delivered to the patient through the breathing pipeline and mask.
  • the fan blades rotate at high speed, it will generate high noise.
  • the noise generated by the fan will still spread to the space environment along the air intake, and the noise will affect the patient or the product use environment others in .
  • this type of product needs to be equipped with a noise reduction mechanism to reduce the noise generated by the fan itself, and the noise reduction mechanism is set at the air inlet part of the front end of the fan.
  • noise reduction mechanisms and noise reduction cotton are designed in the air inlet at the front end of the fan to reduce the noise generated by the high-speed rotation of the fan blades.
  • the noise reduction solutions are all in the form of noise reduction mechanism plus noise reduction cotton, and the structure is complex.
  • the object of the present invention is to provide an air intake structure, an air intake component, a noise reduction box and a ventilation treatment device to solve the above problems.
  • the first aspect of the present invention provides an air intake structure
  • the air intake structure includes an air intake unit
  • the air intake unit includes a main air circuit and at least one branch air circuit
  • the branch air circuit is set as From the upstream side of the main air path, it bends to the side and extends to the downstream of the main air path, wherein: at the connection between the branch air path and the upstream of the main air path, the airflow direction entering the branch air path
  • the included angle with the airflow direction of the main airway is an obtuse angle; at the connection between the branch airway and the downstream of the main airway, the airflow direction from the branch airway is the same as that of the main airway.
  • the angle between the airflow directions is an acute angle.
  • the air intake unit includes a plurality of branch air passages, and the plurality of branch air passages are connected in parallel with the main air passage.
  • the air intake structure includes a plurality of air intake units, and the plurality of air intake units communicate with each other through the main air path in sequence.
  • the main gas path is linear.
  • the air branch is in the shape of an arc or a triangle.
  • the main air path is linear
  • the branch air path is arc-shaped
  • the air intake structure includes a plurality of air intake units
  • the main air flow is passed between the air intake units.
  • the channels are connected in sequence, and the main air channels of the adjacent air intake units are arranged at an angle.
  • the main air path is linear
  • the branch air path is triangular
  • the air intake structure includes a plurality of air intake units, and the main air intake units pass through the The gas paths are connected in sequence, and a plurality of the main gas paths are arranged in a straight line.
  • a second aspect of the present invention provides an air intake component, which includes the air intake structure described above.
  • the air intake component has an air inlet and an air outlet, the air inlet communicates with the air intake end of the air intake structure, and the air outlet communicates with the air outlet end of the air intake structure.
  • the air intake component includes multiple air intake structures, and the multiple air intake structures are arranged side by side.
  • the third aspect of the present invention provides a noise reduction box
  • the noise reduction box includes a housing and a fan
  • the housing has an installation cavity and an air inlet and an air outlet communicating with the installation cavity
  • the fan is installed on The air inlet of the fan communicates with the air inlet
  • the air outlet of the fan communicates with the air outlet
  • the communication path between the air inlet and the air inlet The air intake structure described above is provided.
  • the housing includes an upper housing and a lower housing assembled up and down, the installation cavity is defined and formed by the upper housing and the lower housing, and the air intake structure is arranged on the upper housing on the shell.
  • the upper casing includes a top wall and a peripheral wall extending downward from around the top wall, the air inlet and the air intake structure are arranged on the top wall, and the top wall is provided with The air outlet end of the air intake structure is connected with the communication port of the installation cavity.
  • the air intake structure is disposed on the top surface of the top wall in a recessed manner, and the housing further includes an upper cover plate, and the upper cover plate is disposed above the top wall.
  • a fourth aspect of the present invention provides a ventilation therapy device, which includes the above-mentioned noise reduction box.
  • the air intake structure of the present invention adopts the above-mentioned technical scheme.
  • the airflow that enters through the intake end of the air intake structure can flow downstream along the main air path and the branch air path respectively, and flow in the downstream of the branch air path and the main air path.
  • the connected parts merge together to form a confluence point of airflow.
  • the flow velocity of the airflow will be increased, thereby promoting the flow of the airflow;
  • the noise entering in the opposite direction through the outlet end of the air intake structure can be propagated in the opposite direction along the main air path and the branch air path respectively. , and join together at the connection between the branch air path and the upstream of the main air path to form a noise confluence point.
  • the noise propagation direction in the branch air path is opposite or nearly opposite to the noise propagation direction in the main air path. cancel each other out to reduce noise.
  • the air intake structure of the present invention When the air intake structure of the present invention is applied to ventilation treatment equipment, it can effectively reduce the noise transmitted through the fan air intake channel, and the air intake structure is easy to process, simple in structure and easy to apply.
  • Fig. 1 is a schematic structural view of an embodiment of an air intake structure in the present invention
  • Fig. 2 is a front view of the intake structure in Fig. 1, wherein the gas flow direction is shown by solid arrows;
  • Fig. 3 is a front view of the intake structure in Fig. 1, wherein the direction of noise propagation is shown by a dotted line;
  • Fig. 4 is a structural schematic diagram of another embodiment of the intake structure in the present invention.
  • Fig. 5 is a front view of the intake structure in Fig. 4, wherein the gas flow direction is shown by solid arrows;
  • Fig. 6 is a front view of the intake structure in Fig. 4, wherein the direction of noise propagation is shown by a dotted line;
  • Fig. 7 is a perspective view of an embodiment of the noise reduction box in the present invention.
  • Fig. 8 is a sectional perspective view of the noise reduction box in Fig. 7;
  • Fig. 9 is the front view of Fig. 8.
  • Fig. 10 is a sectional view of the noise reduction box in Fig. 7;
  • Figure 11 is an exploded view of the noise reduction box in Figure 7;
  • Fig. 12 is a sectional perspective view of the upper housing in Fig. 11;
  • Fig. 13 is a bottom perspective view of the upper housing in Fig. 11;
  • Fig. 14 is a perspective view of the lower case in Fig. 11;
  • Fig. 15 is a perspective view of the fan in Fig. 11;
  • Fig. 16 is a perspective view of another angle of the fan in Fig. 11;
  • Figure 17 is a perspective view of the positioning ring in Figure 11;
  • Fig. 18 is a perspective view of another angle of the positioning ring in Fig. 11;
  • Fig. 19 is a cross-sectional view of the positioning ring in Fig. 18 .
  • 10-intake structure 11-intake unit, 111-main air circuit, 112-branch air circuit, 20-noise reduction box, 21-fan, 211-air inlet, 212-air outlet, 213-fan foot, 214 -Positioning column, 22-installation chamber, 23-upper shell, 231-air inlet, 232-air outlet, 233-top wall, 234-surrounding wall, 235-communication port, 236-installation cylinder, 24-lower shell , 241-positioning cylinder, 25-upper cover plate, 26-upper seal, 27-lower seal, 28-positioning ring, 29-sealing ring, 30-shock-absorbing foot.
  • orientation words such as “up, down, left, right, top, bottom” usually refer to the orientation shown with reference to the drawings.
  • the first aspect of the present invention provides an air intake structure 10, including an air intake unit 11, the air intake unit 11 includes a main air path 111 and at least one branch air path 112, and the branch air path 112 is set from the upstream of the main air path 111 to The side bends and extends to the downstream of the main air passage 111, wherein: at the connection between the branch air passage 112 and the upstream of the main air passage 111 (see B in Figure 3 or 6), the airflow direction entering the branch air passage 112 is the same as the main air passage.
  • the included angle between the airflow directions of the air passage 111 is an obtuse angle; at the communication point between the branch air passage 112 and the main air passage 111 downstream (referring to A place among Fig.
  • the included angle between the airflow directions of the air passage 111 is an acute angle.
  • the two ends of the air inlet structure 10 along the gas flow direction are the air inlet end and the air outlet end respectively.
  • the upstream and downstream of the main gas path 111 are also defined based on the gas flow direction.
  • the air intake structure 10 of the present invention adopts the above-mentioned technical scheme.
  • the airflow that enters through the air intake end of the air intake structure 10 see the left end of FIG. 2 or FIG.
  • Flow downstream shown by the solid arrow in Fig. 2 or Fig. 5
  • join together at the downstream connection of the branch air passage 112 and the main air passage 111 to form the confluence point A of the air flow (see Fig. 2 or Fig. 5).
  • the flow velocity of the airflow will be increased, and then the flow of the airflow will be promoted; the noise entering in the reverse direction through the air outlet end of the air intake structure 10 (see the right end of FIG. 3 or FIG.
  • the air passage 112 propagates in the opposite direction (shown by the solid arrow in Fig. 3 or Fig. 6), and joins together at the connection between the branch air passage 112 and the upstream of the main air passage 111 to form a noise confluence point B.
  • the noise propagation direction in the branch air passage 112 at B is opposite or nearly opposite to the noise propagation direction in the main air passage 111 , and they cancel each other out, thereby achieving the effect of noise reduction.
  • the air intake unit 11 includes a plurality of branch air passages 112 , and the plurality of branch air passages 112 are connected in parallel to the main air passage 111 (see FIG. 4 ).
  • the air intake structure 10 may include one or more air intake units 11 .
  • the intake structure 10 includes a plurality of intake units 11 , and the plurality of intake units 11 communicate with each other through a main air path 111 in sequence. The greater the number of air intake units 11, the greater the speed at which the airflow is increased, which is more conducive to the rapid flow of the airflow and the more obvious the noise reduction effect.
  • the main gas path 111 can have various extension modes, which can be straight or curved.
  • the main air passage 111 is linear.
  • the branch air passage 112 may also have various extension methods, as long as it extends from upstream to downstream of the main air passage 111 at the side of the main air passage 111 .
  • the branch air passage 112 is arc-shaped.
  • the branch air passage 112 is in the shape of a triangular border.
  • the intake structure 10 includes a plurality of intake units 11, and the plurality of intake units 11 are sequentially connected through the main air passage 111, and the adjacent intake units
  • the main air passages 111 of 11 are arranged at an angle, each air intake unit 11 includes a main air passage 111 and a branch air passage 112, the main air passage 111 is straight, and the branch air passage 112 is arc-shaped.
  • the intake structure 10 includes a plurality of intake units 11, and the plurality of intake units 11 are connected in sequence through the main air passage 111, and the plurality of main air passages 111 are in a straight line Arranged, each air intake unit 11 includes a main air passage 111 and two branch air passages 112, the main air passage 111 is in a straight line shape, and the branch air passages 112 are in a triangular shape.
  • air intake structure 10 of the present invention can be used for noise reduction in scenarios where the gas flow direction in the gas path is opposite to the noise propagation direction.
  • a second aspect of the present invention provides an air intake component, which includes the above air intake structure 10 .
  • the air intake component can be used to carry parts of the air intake structure 10 arbitrarily, such as the upper casing in the noise reduction box to be introduced below.
  • the air intake component may have an air inlet and an air outlet, the air inlet communicates with the air intake end of the air intake structure 10 , and the air outlet communicates with the air outlet end of the air intake structure 10 .
  • the air intake component may include one or more air intake structures 10 .
  • the multiple air intake structures 10 can be arranged side by side, and the air intake part can have one air inlet and one air outlet, or can have There are a plurality of air inlets and a plurality of air outlets corresponding to the number of air structures 10 .
  • the upper casing 23 shown in Fig. 11 includes two air intake structures 10, and the two air intake structures 10 are arranged side by side.
  • the third aspect of the present invention provides a noise reduction box 20, referring to Fig. 7-Fig. and the air outlet 232, the fan 21 is installed in the installation cavity 22, and the air inlet 211 of the fan 21 is communicated with the air inlet 231, and the air outlet 212 of the fan 21 is communicated with the air outlet 232, and between the air inlet 231 and the air inlet 211
  • the above-mentioned air intake structure 10 is arranged on the communication path of the .
  • the air intake end of the air intake structure 10 communicates with the air intake port 231
  • the air outlet end of the air intake structure 10 communicates with the air intake port 211 .
  • the air can enter the air intake structure 10 through the air inlet 231 of the housing and the air intake end of the air intake structure 10 in turn, flow to the air outlet of the air intake structure 10 after increasing the flow rate, and then pass through the air inlet of the fan 21 211 enters the fan 21, and finally flows out of the noise reduction box 20 through the air outlet 212 of the fan 21 and the air outlet 232 of the casing.
  • the noise generated by the high-speed operation of the fan 21 is transmitted through the air inlet 211 and then enters the air intake structure 10 through the air outlet end of the air intake structure 10 for noise reduction.
  • the housing may include an upper housing 23 and a lower housing 24 assembled up and down, the installation cavity 22 is defined and formed by the upper housing 23 and the lower housing 24 together, and the air inlet 231 and the intake structure 10 may be disposed on the upper case 23 .
  • the upper housing 23 may include a top wall 233 and a peripheral wall 234 extending downward from around the top wall 233 , and the air inlet 231 and the air inlet structure 10 are arranged on the top wall 233 , the top wall 233 is provided with a communication port 235 connecting the air outlet end of the air intake structure 10 with the installation cavity 22 .
  • the air outlet 232 can be opened on the peripheral wall 234 .
  • the intake structure 10 is preferably arranged on the top surface of the top wall 233 in a recessed manner.
  • the housing may also include an upper cover plate 25 , the upper cover plate 25 is set above the top wall 233 .
  • an upper seal 26 may be provided between the upper cover plate 25 and the upper casing 23 .
  • a lower seal 27 may be provided between the upper case 23 and the lower case 24 .
  • the noise reduction box 20 may further include a positioning ring 28 , a sealing ring 29 and a shock-absorbing foot 30 .
  • the top of the fan is provided with a fan leg 213
  • the shock-absorbing leg 30 is sleeved on the fan leg 213 and inserted into the installation tube 236 extending downward from the top wall 233 .
  • FIG. 10 and FIG. 15 the top of the fan is provided with a fan leg 213 , and the shock-absorbing leg 30 is sleeved on the fan leg 213 and inserted into the installation tube 236 extending downward from the top wall 233 .
  • the top of the fan is provided with a positioning column 214
  • the positioning ring 28 is sleeved on the positioning column 214 and inserted into the positioning cylinder 241 extending upward from the lower casing 24 .
  • the sealing ring 29 can be installed at the air outlet 212 of the fan and the air outlet 232 of the casing.
  • the orientation words "upper, lower, top, and bottom" used in the above description of the noise reduction box refer to the orientations shown in the corresponding drawings. In the state of installation and use, the noise reduction box can be turned upside down.
  • a fourth aspect of the present invention provides a ventilation therapy device, which includes the above-mentioned noise reduction box 20 .
  • the ventilation therapy equipment may also include a host, a ventilation pipeline, and a patient interface device.
  • the host has a cavity and a host air inlet and an air outlet of the host communicated with the cavity, and the noise reduction box 20 may be arranged in the cavity.
  • the air inlet 231 of the noise reduction box 20 can communicate with the air inlet of the main engine, and the air outlet 232 of the noise reduction box 20 can communicate with the air outlet of the main engine.
  • One end of the ventilation pipeline is connected to the air outlet of the main machine, and the other end is connected to the patient interface device for passing the breathing gas generated by the main machine to the patient interface device for inhalation by the patient.
  • the patient interface device may be a device for communicating with the patient's mouth and/or nose, such as a breathing mask and a nasal oxygen tube.
  • the ventilation therapy equipment may be a ventilator, an oxygen therapy instrument, and the like.

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Abstract

一种进气结构(10)、进气部件、减噪盒以及通气治疗设备。进气结构(10)包括进气单元(11),进气单元(11)包括主气路(111)和至少一个支气路(112)。支气路(112)设置为从主气路(111)的上游向旁侧弯曲延伸至主气路(111)的下游。在支气路(112)与主气路(111)上游的连通处,进入支气路(112)的气流方向与主气路(111)的气流方向之间的夹角为钝角;在支气路(112)与主气路(111)下游的连通处,来自支气路(112)的气流方向与主气路(111)的气流方向之间的夹角为锐角。将进气结构(10)应用于通气治疗设备时,能够有效降低经风机(21)进风通道传播出的噪音,而且进气结构(10)加工方便、结构简单、便于应用。

Description

进气结构、进气部件、减噪盒以及通气治疗设备 技术领域
本发明涉及气路减噪技术领域,具体地涉及一种进气结构、进气部件、减噪盒以及通气治疗设备。
背景技术
呼吸类产品在正常工作状态时,是通过风机内部叶片高速转动实现持续正压来输出气体,气体经过呼吸管路及面罩输送给患者。风机叶片在高速转动时,会产生很高的噪音,虽然风机被放置在呼吸类产品内部,但风机产生的噪音还是会沿着进气道传播到空间环境,该噪音会影响患者或产品使用环境中的其他人。尤其在夜晚期间,噪音会严重影响大家的入眠和睡觉质量,所以该类产品都需要设置减噪机构来降低风机自身产生的噪音,且减噪机构均设置在风机前端的进气道部分。
目前呼吸类产品中均在风机前端的进气道内设计减噪机构和减噪棉,来降低风机叶片高速转动产生的噪音。
目前呼吸类产品中,减噪方案均为减噪机构加减噪棉的形式,结构形式复杂。
发明内容
本发明的目的是提供一种进气结构、进气部件、减噪盒以及通气治疗设备,以解决上述问题。
为了实现上述目的,本发明第一方面提供一种进气结构,所述进气结构包括进气单元,所述进气单元包括主气路和至少一个支气路,所述支气路设置为从所述主气路的上游向旁侧弯曲延伸至所述主气路的下游,其中: 在所述支气路与所述主气路上游的连通处,进入所述支气路的气流方向与所述主气路的气流方向之间的夹角为钝角;在所述支气路与所述主气路下游的连通处,来自所述支气路的气流方向与所述主气路的气流方向之间的夹角为锐角。
可选地,所述进气单元包括多个所述支气路,多个所述支气路相互并联于所述主气路。
可选地,所述进气结构包括多个所述进气单元,多个所述进气单元之间通过所述主气路依次连通。
可选地,所述主气路呈直线形。
可选地,所述支气路呈弧形或者三边框形。
可选地,所述主气路呈直线形,所述支气路呈弧形,所述进气结构包括多个所述进气单元,多个所述进气单元之间通过所述主气路依次连通,相邻所述进气单元的所述主气路之间成夹角排布。
可选地,所述主气路呈直线形,所述支气路呈三边框形,所述进气结构包括多个所述进气单元,多个所述进气单元之间通过所述主气路依次连通,多个所述主气路成直线排布。
本发明第二方面提供一种进气部件,所述进气部件包括以上所述的进气结构。
可选地,所述进气部件具有进气口和出气口,所述进气口与所述进气结构的进气端连通,所述出气口与所述进气结构的出气端连通。
可选地,所述进气部件包括多个所述进气结构,多个所述进气结构并排布置。
本发明第三方面提供一种减噪盒,所述减噪盒包括壳体和风机,所述壳体具有安装腔以及与所述安装腔连通的进气口和出气口,所述风机安装在所述安装腔内,并且所述风机的进风口与所述进气口连通,所述风机的出风口与所述出气口连通,所述进气口与所述进风口之间的连通路径上设 置有以上所述的进气结构。
可选地,所述壳体包括上下装配的上壳体和下壳体,所述安装腔由所述上壳体和所述下壳体一起限定形成,所述进气结构设置在所述上壳体上。
可选地,所述上壳体包括顶壁和从所述顶壁四周向下延伸的周壁,所述进气口和所述进气结构设置在所述顶壁上,所述顶壁设置有连通所述进气结构的出气端与所述安装腔的连通口。
可选地,所述进气结构通过凹陷方式设置在所述顶壁的顶面,所述壳体还包括上盖板,所述上盖板盖设在所述顶壁上方。
本发明第四方面提供一种通气治疗设备,所述通气治疗设备包括以上所述的减噪盒。
本发明的进气结构通过上述技术方案,在使用时,经进气结构的进气端进入的气流可以分别沿主气路和支气路向下游流动,并在支气路与主气路下游的连通处汇合在一起形成气流汇合点,气流汇合后会提高气流的流速,进而促进气流的流动;经进气结构的出气端反向进入的噪音可以分别沿主气路和支气路反向传播,并在支气路与主气路上游的连通处汇合在一起形成噪音汇合点,在噪音汇合点处支气路中的噪音传播方向与主气路中的噪音传播方向相反或接近相反,发生相互抵消,从而实现降低噪音的作用。在将本发明的进气结构应用于通气治疗设备时,能够有效降低经风机进风通道传播出的噪音,而且所述进气结构加工方便、结构简单、便于应用。
本发明的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本发明的进一步理解,并且构成说明书的一部分,与下面的具体实施方式一起用于解释本发明,但并不构成对本发明的限制。在附图中:
图1是本发明中进气结构的一种实施方式的结构示意图;
图2是图1中进气结构的主视图,其中采用实线箭头示出了气体流动方向;
图3是图1中进气结构的主视图,其中采用虚线示出了噪音传播方向;
图4是本发明中进气结构的另一种实施方式的结构示意图;
图5是图4中进气结构的主视图,其中采用实线箭头示出了气体流动方向;
图6是图4中进气结构的主视图,其中采用虚线示出了噪音传播方向;
图7是本发明中减噪盒的一种实施方式的立体图;
图8是图7中减噪盒的剖视立体图;
图9是图8的主视图;
图10是图7中减噪盒的剖视图;
图11是图7中减噪盒的爆炸图;
图12是图11中上壳体的剖视立体图;
图13是图11中上壳体的仰视立体图;
图14是图11中下壳体的立体图;
图15是图11中风机的立体图;
图16是图11中风机的另一角度的立体图;
图17是图11中定位圈的立体图;
图18是图11中定位圈的另一角度的立体图;
图19是图18中定位圈的剖视图。
附图标记说明
10-进气结构,11-进气单元,111-主气路,112-支气路,20-减噪盒,21-风机,211-进风口,212-出风口,213-风机支脚,214-定位柱,22-安装腔,23-上壳体,231-进气口,232-出气口,233-顶壁,234-周壁,235-连通口,236-安装筒,24-下壳体,241-定位筒,25-上盖板,26-上密封件,27-下密 封件,28-定位圈,29-密封圈,30-减震支脚。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是,此处所描述的具体实施方式仅用于说明和解释本发明,并不用于限制本发明。
在本发明中,在未作相反说明的情况下,使用的方位词如“上、下、左、右、顶、底”通常是指参照附图所示的方位。“内、外”是指相对于各部件本身轮廓的内、外。
本发明第一方面提供一种进气结构10,包括进气单元11,进气单元11包括主气路111和至少一个支气路112,支气路112设置为从主气路111的上游向旁侧弯曲延伸至主气路111的下游,其中:在支气路112与主气路111上游的连通处(参见图3或6中的B处),进入支气路112的气流方向与主气路111的气流方向之间的夹角为钝角;在支气路112与主气路111下游的连通处(参见图2或5中的A处),来自支气路112的气流方向与主气路111的气流方向之间的夹角为锐角。
上述中,可以理解的是,进气结构10的沿气体流动方向的两端分别为进气端和出气端。主气路111的上游和下游也是基于气体流动方向定义的。
本发明的进气结构10通过上述技术方案,在使用时,经进气结构10的进气端(参见图2或图5的左端)进入的气流可以分别沿主气路111和支气路112向下游流动(参见图2或图5中的实线箭头所示),并在支气路112与主气路111下游的连通处汇合在一起形成气流汇合点A(参见图2或图5所示),气流汇合后会提高气流的流速,进而促进气流的流动;经进气结构10的出气端(参见图3或图6的右端)反向进入的噪音可以分别沿主气路111和支气路112反向传播(参见图3或图6中的实线箭头所示),并在支气路112与主气路111上游的连通处汇合在一起形成噪音汇合点B,在 噪音汇合点B处支气路112中的噪音传播方向与主气路111中的噪音传播方向相反或接近相反,发生相互抵消,从而实现降低噪音的作用。在将本发明的进气结构10应用于通气治疗设备时,能够有效降低经风机进风通道传播出的噪音,而且所述进气结构10加工方便、结构简单、便于应用。
其中,根据本发明的一种优选实施方式,进气单元11包括多个支气路112,多个支气路112相互并联于主气路111(参见图4)。
本发明中,进气结构10可包括一个或多个进气单元11。根据本发明的一种优选实施方式,进气结构10包括多个进气单元11,多个进气单元11之间通过主气路111依次连通。进气单元11数量越多,气流被提高的速度约大,越有利于气流的快速流动,降噪效果也越明显。
本发明中,主气路111可以具有多种延伸方式,可以是直线形,也可以是曲线形。例如图1和图4所示的实施方式,主气路111呈直线形。另外,支气路112也可以具有多种延伸方式,只要在主气路111的旁侧从主气路111的上游延伸至下游即可。例如图1-图3所示的实施方式,支气路112呈弧形。例如图4-图6所示的实施方式,支气路112呈三边框形。
具体地,参见图1-图3所示的进气结构10,进气结构10包括多个进气单元11,多个进气单元11之间通过主气路111依次连通,相邻进气单元11的主气路111之间成夹角排布,每个进气单元11包括一个主气路111和一个支气路112,主气路111呈直线形,支气路112呈弧形。
参见图4-图6所示的进气结构10,进气结构10包括多个进气单元11,多个进气单元11之间通过主气路111依次连通,多个主气路111成直线排布,每个进气单元11包括一个主气路111和两个支气路112,主气路111呈直线形,支气路112呈三边框形。
需要说明的是,气路中气体流动方向与噪音传播方向相反的场景均可以利用本发明的进气结构10进行减噪。
本发明第二方面提供一种进气部件,该进气部件包括上述进气结构10。
所述进气部件可以任意用于承载进气结构10的部件,例如下面将要介绍的减噪盒中的上壳体。
其中,所述进气部件可以具有进气口和出气口,所述进气口与进气结构10的进气端连通,所述出气口与进气结构10的出气端连通。
所述进气部件可以包括一个或多个进气结构10。在所述进气部件包括多个进气结构10时,多个进气结构10可以并排布置,所述进气部件可以具有一个所述进气口和一个所述出气口,也可以具有与进气结构10数量对应的多个所述进气口和多个所述出气口。例如图11中所示的上壳体23,其包括两个进气结构10,两个进气结构10并排布置。
本发明第三方面提供一种减噪盒20,参见图7-图19,减噪盒20包括壳体和风机21,所述壳体具有安装腔22以及与安装腔22连通的进气口231和出气口232,风机21安装在安装腔22内,并且风机21的进风口211与进气口231连通,风机21的出风口212与出气口232连通,进气口231与进风口211之间的连通路径上设置有上述进气结构10。
上述中,可以理解的是,进气结构10的进气端与进气口231连通,进气结构10的出气端与进风口211连通。在使用时,空气可依次经过壳体的进气口231、进气结构10的进气端进入进气结构10中,提高流速后流向进气结构10的出气端,然后经风机21的进风口211进入风机21中,最后经风机21的出风口212、壳体的出气口232流出减噪盒20。风机21高速运转产生的噪音经进风口211传播出后,会经进气结构10的出气端进入进气结构10中进行降噪。
其中,为了便于各部件的安装和维护,所述壳体可包括上下装配的上壳体23和下壳体24,安装腔22由上壳体23和下壳体24一起限定形成,进气口231和进气结构10可以设置在上壳体23上。
具体地,参见图8-图10以及图12,上壳体23可包括顶壁233和从顶壁233四周向下延伸的周壁234,进气口231和进气结构10设置在顶壁233 上,顶壁233设置有连通进气结构10的出气端与安装腔22的连通口235。出气口232可以开设在周壁234上。
需要说明的是,在设置有多个进气结构10的情况下,进气口231与连通口235也可以有多个,例如图11和图12所示。
其中,为了便于进气结构10的加工,如图12所示,进气结构10优选通过凹陷方式设置在顶壁233的顶面,在这种情况下,所述壳体还可包括上盖板25,上盖板25盖设在顶壁233上方。
如图7-图11所示,为了提高上盖板25与上壳体23装配的密封性,可以在上盖板25与上壳体23之间设置上密封件26。为了提高上壳体23与下壳体24装配的密封性,可以在上壳体23与下壳体24之间设置下密封件27。
另外,为了减小风机的震动噪音,同时将风机21定位于安装腔22内,减噪盒20还可包括定位圈28、密封圈29以及减震支脚30。如图10和图15所示,风机的顶部设置有风机支脚213,减震支脚30套设在风机支脚213上,并插入从顶壁233向下延伸出的安装筒236中。如图10和图16所示,风机的顶部设置有定位柱214,定位圈28套设在定位柱214上,并装入从下壳体24向上延伸出的定位筒241中。如图10所示,密封圈29可以安装在风机的出风口212与壳体的出气口232处。
需要说明的是,为了便于理解,同时更好的展示结构,上述关于减噪盒的描述中使用的方位词“上、下、顶、底”是参照相应附图所示的方位。在安装使用状态下,减噪盒可倒置。
本发明第四方面提供一种通气治疗设备,该通气治疗设备包括上述减噪盒20。
所述通气治疗设备还可包括主机、通气管路以及患者接口装置,主机具有空腔以及与所述空腔连通的主机进气口和主机出气口,减噪盒20可以设置在所述空腔内,减噪盒20的进气口231可与主机进气口连通,减噪盒20的出气口232可与主机出气口连通。通气管路的一端连接于主机出气口, 另一端连接于患者接口装置,以用于将主机产生的呼吸气体通至患者接口装置,进而供患者吸入。
其中,患者接口装置可以是呼吸面罩、鼻氧管等用于与患者的口和/或鼻连通的装置。
所述通气治疗设备可以是呼吸机、氧疗仪等。
以上结合附图详细描述了本发明的优选实施方式,但是,本发明并不限于上述实施方式中的具体细节,在本发明的技术构思范围内,可以对本发明的技术方案进行多种简单变型,这些简单变型均属于本发明的保护范围。
另外需要说明的是,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合。为了避免不必要的重复,本发明对各种可能的组合方式不再另行说明。
此外,本发明的各种不同的实施方式之间也可以进行任意组合,只要其不违背本发明的思想,其同样应当视为本发明所公开的内容。

Claims (11)

  1. 一种进气结构,其特征在于,所述进气结构(10)包括进气单元(11),所述进气单元(11)包括主气路(111)和至少一个支气路(112),所述支气路(112)设置为从所述主气路(111)的上游向旁侧弯曲延伸至所述主气路(111)的下游,其中:在所述支气路(112)与所述主气路(111)上游的连通处,进入所述支气路(112)的气流方向与所述主气路(111)的气流方向之间的夹角为钝角;在所述支气路(112)与所述主气路(111)下游的连通处,来自所述支气路(112)的气流方向与所述主气路(111)的气流方向之间的夹角为锐角。
  2. 根据权利要求1所述的进气结构,其特征在于,
    所述进气单元(11)包括多个所述支气路(112),多个所述支气路(112)相互并联于所述主气路(111);和/或
    所述进气结构(10)包括多个所述进气单元(11),多个所述进气单元(11)之间通过所述主气路(111)依次连通。
  3. 根据权利要求1所述的进气结构,其特征在于,所述主气路(111)呈直线形,和/或,所述支气路(112)呈弧形或者三边框形。
  4. 根据权利要求1所述的进气结构,其特征在于,
    所述主气路(111)呈直线形,所述支气路(112)呈弧形,所述进气结构(10)包括多个所述进气单元(11),多个所述进气单元(11)之间通过所述主气路(111)依次连通,相邻所述进气单元(11)的所述主气路(111)之间成夹角排布;或者
    所述主气路(111)呈直线形,所述支气路(112)呈三边框形,所述进气结构(10)包括多个所述进气单元(11),多个所述进气单元(11)之 间通过所述主气路(111)依次连通,多个所述主气路(111)成直线排布。
  5. 一种进气部件,其特征在于,所述进气部件包括权利要求1-4中任意一项所述的进气结构(10)。
  6. 根据权利要求5所述的进气部件,其特征在于,
    所述进气部件具有进气口和出气口,所述进气口与所述进气结构(10)的进气端连通,所述出气口与所述进气结构(10)的出气端连通;和/或
    所述进气部件包括多个所述进气结构(10),多个所述进气结构(10)并排布置。
  7. 一种减噪盒,其特征在于,所述减噪盒(20)包括壳体和风机(21),所述壳体具有安装腔(22)以及与所述安装腔(22)连通的进气口(231)和出气口(232),所述风机(21)安装在所述安装腔(22)内,并且所述风机(21)的进风口(211)与所述进气口(231)连通,所述风机(21)的出风口(212)与所述出气口(232)连通,所述进气口(231)与所述进风口(211)之间的连通路径上设置有权利要求1-4中任意一项所述的进气结构(10)。
  8. 根据权利要求7所述的减噪盒,其特征在于,所述壳体包括上下装配的上壳体(23)和下壳体(24),所述安装腔(22)由所述上壳体(23)和所述下壳体(24)一起限定形成,所述进气结构(10)设置在所述上壳体(23)上。
  9. 根据权利要求8所述的减噪盒,其特征在于,所述上壳体(23)包括顶壁(233)和从所述顶壁(233)四周向下延伸的周壁(234),所述进 气口(231)和所述进气结构(10)设置在所述顶壁(233)上,所述顶壁(233)设置有连通所述进气结构(10)的出气端与所述安装腔(22)的连通口(235)。
  10. 根据权利要求9所述的减噪盒,其特征在于,所述进气结构(10)通过凹陷方式设置在所述顶壁(233)的顶面,所述壳体还包括上盖板(25),所述上盖板(25)盖设在所述顶壁(233)上方。
  11. 一种通气治疗设备,其特征在于,所述通气治疗设备包括权利要求7-10中任意一项所述的减噪盒(20)。
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