WO2022135146A1 - 通气消声装置和通气治疗设备 - Google Patents

通气消声装置和通气治疗设备 Download PDF

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Publication number
WO2022135146A1
WO2022135146A1 PCT/CN2021/136280 CN2021136280W WO2022135146A1 WO 2022135146 A1 WO2022135146 A1 WO 2022135146A1 CN 2021136280 W CN2021136280 W CN 2021136280W WO 2022135146 A1 WO2022135146 A1 WO 2022135146A1
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WIPO (PCT)
Prior art keywords
flow channel
ventilation
side wall
gas flow
diffuser
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PCT/CN2021/136280
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English (en)
French (fr)
Inventor
毕唯东
易萍虎
庄志
智建新
Original Assignee
北京怡和嘉业医疗科技股份有限公司
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Application filed by 北京怡和嘉业医疗科技股份有限公司 filed Critical 北京怡和嘉业医疗科技股份有限公司
Priority to EP21909143.6A priority Critical patent/EP4238600A4/en
Priority to US18/269,053 priority patent/US20240058558A1/en
Publication of WO2022135146A1 publication Critical patent/WO2022135146A1/zh

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    • 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
    • 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
    • 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
    • A61M16/0057—Pumps therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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
    • 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
    • A61M2206/00—Characteristics of a physical parameter; associated device therefor
    • A61M2206/10—Flow characteristics
    • A61M2206/14—Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws

Definitions

  • the invention relates to the technical field of noise reduction of ventilation treatment equipment, in particular to a ventilation muffler device and a ventilation treatment equipment.
  • impeller machines are often employed to deliver the air flow.
  • impeller machinery As the main mechanical component of power plant and gas transportation, impeller machinery is converted into mechanical energy of impeller rotation through other forms of energy, and the rotating impeller transfers the energy to the continuously flowing gas.
  • Fans account for a large proportion of impeller machinery, among which centrifugal fans and axial fans are commonly used types of fans.
  • the motor of the fan will generate a certain noise, which will affect the patient. To do this, the noise generated by the motor in the ventilator needs to be processed.
  • the commonly used noise reduction method is to use a noise reduction box, that is, a noise reduction box with a soft wrapping material and a resistive noise reduction material is set inside the ventilator, and the noise reduction box wraps the motor.
  • a noise reduction box that is, a noise reduction box with a soft wrapping material and a resistive noise reduction material is set inside the ventilator, and the noise reduction box wraps the motor.
  • the box body of the noise reduction box is large, thereby occupying a large space inside the ventilator, making the ventilator larger.
  • this noise reduction box can handle high-frequency noise well, but the elimination of low-frequency noise is very limited.
  • the structural complexity of the noise reduction box is also very easy to cause excitation superposition of the sound field inside the box. This may affect the comfort of the user.
  • the object of the present invention is to provide a ventilation muffler device, which has a simple structure and can effectively reduce the low-frequency noise in the frequency band to be eliminated, so as to improve the use of the ventilation treatment equipment when assembled into the ventilation treatment equipment comfort.
  • the present invention provides a ventilation muffler device
  • the ventilation muffler device includes a muffler housing with a gas flow channel, and the flow channel side wall of the gas flow channel includes oppositely arranged in a first direction.
  • a first flow channel side wall and a second flow channel side wall wherein the inner surface of the first flow channel side wall is provided with a plurality of first scattering protruding toward the inside of the gas flow channel and arranged in multiple rows and columns at intervals
  • the inner surface of the side wall of the second flow channel is provided with a plurality of second scatterers protruding toward the inside of the gas flow channel and arranged in multiple rows and columns at intervals.
  • the first scatterers and the first scatterers A predetermined distance is maintained between the two scatterers in the first direction.
  • the inner surface of the first flow channel side wall is provided with a gas-facing side wall.
  • a plurality of first scatterers protruding from the inside of the flow channel and arranged in multiple rows and columns at intervals to form a first array structure
  • the inner surface of the side wall of the second flow channel is provided with a plurality of rows and columns extending toward the inside of the gas flow channel
  • a plurality of second scatterers are arranged at intervals to form a second array structure, and a predetermined distance is maintained between the first scatterers and the second scatterers in the first direction.
  • the gas flow can flow through the gas flow channel, and at the same time, when the sound wave passes through the first array structure and the second array structure in the gas flow channel, a specific frequency of the sound wave in a certain interval (for example, 400Hz to 520Hz, based on the sound wave wavelength in this frequency band)
  • a specific frequency of the sound wave in a certain interval for example, 400Hz to 520Hz, based on the sound wave wavelength in this frequency band
  • the comfort of use of the ventilation treatment equipment can be improved when the ventilation treatment equipment is in use.
  • the side wall of the first flow channel is the side wall of the first smooth flow channel
  • the side wall of the second flow channel is the side wall of the second smooth flow channel
  • the side wall of the first flow channel and the side wall of the second flow channel are The sidewalls of the straight channel are arranged in parallel.
  • each of the first scatterers and each of the corresponding second scatterers are aligned in the first direction.
  • the length of the muffler shell in the extending direction of the gas flow channel is greater than the width of the cross section of the muffler shell, so that the gas flow channel is formed as a long strip flow channel; wherein, the The number of the cross-sectional direction of the gas flow channel is determined as the number of columns, and the number of spaced arrangements in the extending direction of the gas flow channel is determined as the number of rows. In the elongated flow channel, the number of columns is smaller than the number of rows Rows.
  • first scatterer and the second scatterer are solid bodies; or, the first scatterer and the second scatterer are hollow bodies.
  • first scatterer and the second scatterer are cylinders.
  • first scattering body and the second scattering body are fins, and the orientation of each of the fins is the same and is arranged perpendicular to the airflow direction in the gas flow channel.
  • the fins include a cylinder and fins respectively protruding from the outer surface of the cylinder opposite to each other.
  • first flow channel side wall and the second flow channel side wall are elastic side walls; and/or, the outer surfaces of the first scatterer and the second scatter body are elastic outer surfaces.
  • the cross section of the muffler housing is rectangular or square.
  • the predetermined distance can be adjusted.
  • At least one of the first scatterer and the second scatterer includes a telescopically sleeved tube section, each of the tube sections is telescopic to adjust the predetermined distance;
  • the two flow channel side walls of the gas flow channel connected between the first flow channel side wall and the second flow channel side wall respectively include side wall sections that can be telescopically sleeved, and each of the side wall sections is telescopic to adjust the predetermined distance.
  • the present invention provides a ventilation treatment device
  • the ventilation treatment device includes any of the ventilation and noise reduction devices described above, wherein the gas flow channel serves as a channel section of a gas delivery channel of the ventilation treatment device.
  • the noise of the ventilation treatment device is significantly reduced, and the overall quality is improved.
  • the ventilation treatment equipment can be, for example, a ventilator, a high-flow humidified oxygen therapy apparatus, and the like.
  • Fig. 1 is the three-dimensional structure schematic diagram of a viewing angle of a kind of ventilation muffler device provided by the specific embodiment of the present invention
  • FIG. 2 is a schematic three-dimensional structure diagram of the ventilation muffler device of FIG. 1 from another perspective;
  • Fig. 3 is the structural schematic diagram of the end view of the ventilation muffler device of Fig. 1;
  • Fig. 4 is the cutaway structure schematic diagram of the ventilation and muffler device of Fig. 1 along the gas flow channel;
  • FIG. 5 is a schematic structural diagram of a fin in another ventilation and noise reduction device provided by a specific embodiment of the present invention, when the first diffuser and the second diffuser are fins;
  • Fig. 6 is the structural representation that the ventilation muffler device in Fig. 1 is arranged in the air outlet of the blower;
  • FIG. 7 is a schematic diagram of a curve for eliminating low-frequency noise of a predetermined frequency to be eliminated by a ventilation muffler device provided by a specific embodiment of the present invention.
  • 1-gas flow channel 2-anechoic shell, 3-first smooth channel sidewall, 4-second smooth channel sidewall, 5-first diffuser, 6-second diffuser, 7-cylinder Body, 8-wing fins, 9-ventilation muffler device, 10-fan.
  • the ventilation muffler device 9 includes a muffler housing 2 having a gas flow channel 1 , and the flow channel side wall of the gas flow channel 1 includes a first flow channel oppositely arranged in a first direction
  • the side wall and the second flow channel side wall wherein the inner surface of the first flow channel side wall is provided with a plurality of first scatterers 5 extending toward the inside of the gas flow channel 1 and arranged in multiple rows and columns at intervals to form a first scatterer 5 Array structure
  • the inner surface of the side wall of the second flow channel is provided with a plurality of second scatterers 6 extending toward the inside of the gas flow channel 1 and arranged in multiple rows and columns at intervals to form a second array structure
  • the first scatterers 5 A predetermined distance is maintained in the first direction with the second scatterer 6, that is, a predetermined distance is maintained in the first direction between the first array structure and the second array structure.
  • the flow channel side wall of the gas flow channel 1 includes the first flow channel side wall and the second flow channel side wall which are oppositely arranged in the first direction, the inner surface of the first flow channel side wall is provided with protruding toward the inside of the gas flow channel.
  • a plurality of first scatterers 5 are arranged in multiple rows and columns at intervals to form a first array structure, and on the inner surface of the sidewall of the second flow channel, there are arranged a plurality of first scatterers 5 extending toward the inside of the gas flow channel and arranged at intervals in multiple rows and columns.
  • a second scatterer 6 is formed to form a second array structure, and a predetermined distance is maintained between the first scatterer 5 and the second scatterer 6 in the first direction.
  • the gas flow can flow through the gas flow channel 1, and at the same time, when the sound wave passes through the first array structure and the second array structure in the gas flow channel, a specific frequency in a certain range of the sound wave, such as the sound wave from 400Hz to 520Hz shown in FIG. 7
  • the wavelength will be attenuated due to the oscillation in the array structure, thereby reducing the intensity of this frequency range. Therefore, the ventilation muffler device has a simple structure, and can effectively reduce the low-frequency noise in the predetermined frequency band to be eliminated, thereby improving the comfort of use of the ventilation treatment equipment when assembled into the ventilation treatment equipment.
  • first flow channel side wall and the second flow channel side wall may have various extended shapes, for example, the first flow channel side wall and the second flow channel side wall may be arc-shaped flow channel sides wall, or it can be a smooth channel side wall.
  • one end of the first flow channel side wall and the second flow channel side wall can be arranged away from each other, and the other ends can be arranged close to each other, so that the gas flow channel 1 is formed as a tapered flow channel or a gradually expanding flow along the gas flow direction road.
  • the sidewall of the first flow channel is the sidewall 3 of the first leveling channel
  • the sidewall of the second channel is the sidewall 4 of the second leveling channel
  • the sidewall of the first leveling channel is 3 and the second straight channel side wall 4 are arranged parallel to each other, so that the gas can flow smoothly along the first straight channel side wall 3 and the second straight channel side wall 4 to smoothly pass through the first array structure and the
  • the second array structure can further reduce gas noise.
  • the first diffuser 5 and the second diffuser 6 can be inserted, laser welded or screwed or integrally formed on the respective side walls of the flow channel, eg, the side walls of the flow channel.
  • the first scatterers 5 in multiple rows and columns in the first array structure may be located in the same position as the second scatterers 6 in multiple rows and columns in the second array structure.
  • the arrangement is staggered in the first direction.
  • each first scatterer 5 and each corresponding second scatterer 6 are aligned in the first direction, so that the sensitivity to the low-frequency noise of the predetermined frequency band to be eliminated is further improved. Remove the effect.
  • the number of rows and columns in the first array structure can be selected according to actual needs, and the number of rows and columns in the second array structure can be selected according to actual needs.
  • the length of the muffler shell 2 in the extension direction of the gas flow channel 1 is greater than the width of the cross section of the muffler shell 2, so that the gas flow channel 1 is formed into a long strip flow channel;
  • the number of cross-sectional directions is set as the number of columns, and the number of spaced arrangements in the extending direction of the gas flow channel 1 is set as the number of rows.
  • the number of columns of the first scatterers 5 and the number of second scatterers 6 is less than the number of rows , so that the passage of sound waves can be extended to improve the noise reduction effect.
  • the number of columns may be 4-10 columns, further 5 columns, and the number of rows 15-20 rows, further 18 rows.
  • the number of columns of the first scatterers 5 and the number of the second scatterers 6 is 5 and the number of rows is 18.
  • the first scatterer 5 and the second scatterer 6 can be solid bodies, such as solid lead bodies. Therefore, according to the distribution of the sound wave energy band, the energy source can be selected accordingly.
  • the solid body is supported with material of the density required in the calculation.
  • first scatterer 5 and the second scatterer 6 can be hollow bodies, that is, a cavity is formed in the scatterer, and the cavity can have various shapes, preferably consistent with the outer contour of the scatterer, for example, the scatterer
  • the cavity in the cylinder may be in the shape of a cylinder.
  • first diffuser 5 and the second diffuser 6 can have various outer contour shapes, which can be selected according to actual needs.
  • the first scatterer 5 and the second scatterer 6 may be spheres, or, in another embodiment, referring to FIG. 1 , FIG. 2 and FIG. 4 , the first scatterer 5 And the second scatterer 6 is a cylinder.
  • the outer circumferential surface of the cylinder can facilitate the passage of airflow, it can also effectively eliminate low-frequency noise in the predetermined frequency band to be eliminated.
  • the diameter of each scatterer such as a cylinder, can be selected according to actual requirements, for example, the diameter of each scatterer can be 3-8mm, further 4mm.
  • the first scattering body 5 and the second scattering body 6 are fins, and the orientations of the fins are the same and are arranged perpendicular to the airflow direction in the gas flow channel 1 .
  • an airflow guiding interval can be formed between the fins, so that the airflow can easily pass through the gas flow channel, and at the same time, the fin surface of each fin can effectively eliminate the low-frequency noise of the predetermined frequency band to be eliminated.
  • the fins as a whole can be a straight plate body, or a wave-shaped plate body, or, in other embodiments, referring to FIG. Out of the wings 8.
  • the fin of this structure can combine the advantages of a cylinder body and a plate body, and can effectively eliminate low-frequency noise in the predetermined frequency band to be eliminated while facilitating the gas to pass through the gas flow channel 1 .
  • first and second flow channel side walls may be an elastic side wall, eg, the first flow channel side wall.
  • the side wall 3 and the side wall 4 of the second smooth channel are elastic side walls, such as silicone rubber side walls, which have elasticity and hardness, so as to support and install each scatterer, and at the same time, to support and install various scatterers, and at the same time, to prevent acoustic wave type elastic waves. have an elimination effect.
  • the outer surfaces of the first scatterer 5 and the second scatterer 6 are elastic outer surfaces, for example, the outer surfaces of each scatterer are covered with elastic sleeves. In this way, the elastic outer surface can also have a canceling effect on acoustic waves of the acoustic type.
  • the thickness of the side wall of the first flow channel and the side wall of the second flow channel for example, the thickness of the side wall of the smooth flow channel, and the height of the diffuser can be selected according to actual requirements.
  • the thickness of the sidewall of the smoothing channel may be 2-5mm, further 2mm; the height of the scatterer may be 10-15mm, further 10mm.
  • first flow channel side wall and the second flow channel side wall such as the flow channel side wall between the first smooth flow channel side wall 3 and the second smooth flow channel side wall 4 (for example, the left and right vertical flow channels in FIG.
  • the sidewall of the flow channel) can be a straight sidewall or an arcuate sidewall.
  • the side wall of the first flow channel and the side wall of the second flow channel for example, the side wall of the flow channel between the side wall 3 of the first straight flow channel and the side wall of the second flow channel 4 is a straight side wall , so that the cross section of the muffler housing 2 is rectangular or square, which makes it easier for the airflow to pass through and at the same time has a better muffling effect.
  • the predetermined distance between the first heat sink 5 and the second diffuser 6 can be adjusted, so that the corresponding low-frequency noise in the predetermined frequency band to be eliminated can be adjusted accordingly.
  • the predetermined distance is adjusted so that the range of noises that can be eliminated by the ventilation muffler device is expanded, so that the ventilation muffler device can be applied to noise reduction and elimination in different occasions.
  • At least one of the first scatterer 5 and the second scatterer 6 includes a tube section that can be telescopically fitted, which makes Each tube section serves as a hollow body, and each tube section expands and contracts to adjust a predetermined distance, so the noise can be eliminated more effectively.
  • the gas flow channel 1 is connected between the first flow channel side wall and the second flow channel side wall, for example, between the first smooth flow channel side wall 3 and the second smooth flow channel side wall 4
  • the side walls of the flow channel respectively include side wall sections that can be telescopically sleeved, and each side wall section is telescopic to adjust a predetermined distance, so that the range of noise that can be eliminated by the ventilation muffler device is expanded, so that the ventilation muffler device can be applied to different occasions. Noise reduction and cancellation.
  • At least one of the first scatterer 5 and the second scatterer 6 includes a tube section that can be telescopically sleeved, so that each tube section acts as a hollow body, and each tube section expands and contracts to adjust a predetermined distance, and the gas flow
  • the two flow channel side walls of the channel 1 connected between the first flow channel side wall and the second flow channel side wall, such as the first smooth flow channel side wall 3 and the second smooth flow channel side wall 4 respectively include telescopic sleeves. Side wall sections, each of which is telescopic to adjust a predetermined distance.
  • the present invention provides a ventilation treatment device, which includes any of the ventilation muffler devices 9 described above, wherein the gas flow channel 1 is used as a channel section of a gas delivery channel of the ventilation treatment device.
  • the ventilation muffler is provided at the air outlet of the fan 10.
  • the ventilation and noise reduction device can also be arranged at the position of the air inlet of the fan 10 or at the air inlet of the noise reduction box of the ventilation treatment equipment.
  • the ventilation therapy equipment can be a ventilator, a high-flow humidification oxygen therapy apparatus, etc.
  • the ventilation and noise reduction device By setting the ventilation and noise reduction device, the noise of these equipments during use is significantly reduced, and the user experience and product quality are significantly improved.

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Abstract

一种通气消声装置(9)和通气治疗设备。通气消声装置(9)包括具有气体流道(1)的消声壳体(2)，气体流道(1)的流道侧壁包括在第一方向上相对布置的第一流道侧壁和第二流道侧壁，第一流道侧壁的内表面上设置有朝向气体流道(1)内部伸出并多行多列间隔布置的多个第一散射体(5)，第二流道侧壁的内表面上设置有朝向气体流道(1)内部伸出并多行多列间隔布置的多个第二散射体(6)，第一散射体(5)和第二散射体(6)之间在第一方向上保持预定距离。声波某一区间的特定频率会由于在阵列结构中的震荡产生衰减，达到减小这一频率区间强度的作用，有效减少所要预定消除频段的低频噪声，装配到通气治疗设备中时能够提升使用舒适性。

Description

通气消声装置和通气治疗设备
相关申请的交叉引用
本申请要求2020年12月22日提交的中国专利申请202011530641.X的权益，该申请的内容通过引用被合并于本文。
技术领域
本发明涉及通气治疗设备消声技术领域，具体地涉及一种通气消声装置和一种通气治疗设备。
背景技术
在例如为呼吸机的通气治疗设备中，通常采用叶轮机械来输送气流。叶轮机械作为动力装置和气体输送的主要机械部件，通过其他形式的能量转化成叶轮转动的机械能，转动的叶轮将能量传递给连续流动的气体。而风机在叶轮机械中有很大的占比，其中离心风机和轴流风机是常用的风机类型。
呼吸机在实际使用中，风机的电机会产生一定的噪声，从而对患者造成影响。为此，需要对呼吸机中的电机产生的噪声进行处理。
目前常用的消声方式是采用降噪盒，也就是，在呼吸机内部设置具有软性包裹材料和阻性消声材料的降噪盒，由该降噪盒包裹电机。然而，降噪盒的盒体较大，从而占据呼吸机内部较大的空间，使得呼吸机体积变大。另外，这种降噪盒可以较好的处理高频噪声，但对于 低频噪声的消除非常有限。此外，降噪盒的结构上的复杂性也非常容易导致声场在盒体内部发生激励叠加。这都可能影响使用者的舒适度。
发明内容
本发明的目的是提供一种通气消声装置，该通气消声装置结构简单，并能够有效地减少所要预定消除频段的低频噪声，从而在装配到通气治疗设备中时能够提升通气治疗设备的使用舒适性。
为了实现上述目的，本发明提供一种通气消声装置，该通气消声装置包括具有气体流道的消声壳体，所述气体流道的流道侧壁包括在第一方向上相对布置的第一流道侧壁和第二流道侧壁，其中，所述第一流道侧壁的内表面上设置有朝向所述气体流道内部伸出并多行多列间隔布置的多个第一散射体，所述第二流道侧壁的内表面上设置有朝向所述气体流道内部伸出并多行多列间隔布置的多个第二散射体，所述第一散射体和所述第二散射体之间在第一方向上保持预定距离。
在该技术方案中，由于气体流道的流道侧壁包括在第一方向上相对布置的第一流道侧壁和第二流道侧壁，第一流道侧壁的内表面上设置有朝向气体流道内部伸出并多行多列间隔布置的多个第一散射体以形成第一阵列结构，第二流道侧壁的内表面上设置有朝向气体流道内部伸出并多行多列间隔布置的多个第二散射体以形成第二阵列结构，第一散射体和第二散射体之间在第一方向上保持预定距离。这样，气流可以从气体流道流过，同时，声波在气体流道中通过第一阵列结构和第二阵列结构时，声波某一区间的特定频率(例如400Hz到 520Hz，基于该频段的声波波长)会由于在阵列结构中的震荡产生衰减，进而达到减小这一频率区间强度的作用，因此，该通气消声装置结构简单，并能够有效地减少所要预定消除频段的低频噪声，从而在装配到通气治疗设备中时能够提升通气治疗设备的使用舒适性。
进一步地，所述第一流道侧壁为第一平直流道侧壁，所述第二流道侧壁为第二平直流道侧壁，所述第一平直流道侧壁和所述第二平直流道侧壁平行布置。
进一步地，各个所述第一散射体和对应的各个所述第二散射体在所述第一方向上对齐布置。
进一步地，所述消声壳体在所述气体流道的延伸方向上的长度大于所述消声壳体横截面的宽度，使得所述气体流道形成为长条形流道；其中，将所述气体流道的横截面方向的数量定为列数，将所述气体流道延伸方向上间隔布置的数量定为行数，在所述长条形流道中，所述列数小于所述行数。
进一步地，所述第一散射体和所述第二散射体为实心体；或者，所述第一散射体和所述第二散射体为空心体。
进一步地，所述第一散射体和所述第二散射体为圆柱体。
进一步地，所述第一散射体和所述第二散射体为翅片，各个所述翅片的朝向相同并且与所述气体流道内气流方向垂直布置。
更进一步地，所述翅片包括圆柱体和所述圆柱体的外表面上分别相对地伸出的翼翅。
进一步地，所述第一流道侧壁和所述第二流道侧壁为弹性侧壁； 和/或，所述第一散射体和所述第二散射体的外表面为弹性外表面。
另外，所述消声壳体的横截面为矩形或正方形。
进一步地，所述预定距离能够调整。
更进一步地，所述第一散射体和所述第二散射体中的至少一者包括能够伸缩套装的管节，各个所述管节伸缩以调整所述预定距离；
和/或，
所述气体流道的连接在所述第一流道侧壁和所述第二流道侧壁之间的两个流道侧壁分别包括能够伸缩套装的侧壁节，各个所述侧壁节伸缩以调整所述预定距离。
最后，本发明提供一种通气治疗设备，所述通气治疗设备包括以上任意所述的通气消声装置，其中，所述气体流道作为所述通气治疗设备的气体输送通道的通道段。这样，如上所述的，该通气治疗设备的噪声明显降低，提升了整体品质。该通气治疗设备可以为如呼吸机、高流量湿化氧疗仪等。
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是本发明具体实施方式提供的一种通气消声装置的一个视 角的立体结构示意图；
图2是图1的通气消声装置的另一个视角的立体结构示意图；
图3是图1的通气消声装置的端视结构示意图；
图4是图1的通气消声装置的沿着气体流道的剖开结构示意图；
图5是本发明具体实施方式提供的另一种通气消声装置中，第一散射体和第二散射体为翅片时，翅片的一种结构示意图；
图6是图1中的通气消声装置设置在风机的出风口的结构示意图；
图7是本发明具体实施方式提供的一种通气消声装置消除某一所要预定消除频率的低频噪声的曲线示意图。
附图标记说明
1-气体流道，2-消声壳体，3-第一平直流道侧壁，4-第二平直流道侧壁，5-第一散射体，6-第二散射体，7-圆柱体，8-翼翅，9-通气消声装置，10-风机。
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。
参考图1-图4，本发明提供的通气消声装置9包括具有气体流道1的消声壳体2，气体流道1的流道侧壁包括在第一方向上相对布置的第一流道侧壁和第二流道侧壁，其中，第一流道侧壁的内表面上设置有朝向气体流道1内部伸出并多行多列间隔布置的多个第一散射 体5以形成第一阵列结构，第二流道侧壁的内表面上设置有朝向气体流道1内部伸出并多行多列间隔布置的多个第二散射体6以形成第二阵列结构，第一散射体5和第二散射体6之间在第一方向上保持预定距离，也就是，第一阵列结构和第二阵列结构之间在第一方向上保持预定距离。
由于气体流道1的流道侧壁包括在第一方向上相对布置的第一流道侧壁和第二流道侧壁，第一流道侧壁的内表面上设置有朝向气体流道内部伸出并多行多列间隔布置的多个第一散射体5以形成第一阵列结构，第二流道侧壁的内表面上设置有朝向气体流道内部伸出并多行多列间隔布置的多个第二散射体6以形成第二阵列结构，第一散射体5和第二散射体6之间在第一方向上保持预定距离。这样，气流可以从气体流道1流过，同时，声波在气体流道中通过第一阵列结构和第二阵列结构时，声波中某一区间的特定频率例如图7中显示的400Hz到520Hz的声波波长会由于在阵列结构中的震荡产生衰减，进而达到减小这一频率区间强度的作用。因此，该通气消声装置结构简单，并能够有效地减少所要消除的预定频段的低频噪声，从而在装配到通气治疗设备中时能够提升通气治疗设备的使用舒适性。
另外，在该通气消声装置中，第一流道侧壁和第二流道侧壁可以具有多种延伸形状，例如，第一流道侧壁和第二流道侧壁可以为弧形流道侧壁，或者可以为平直流道侧壁。另外，第一流道侧壁和第二流道侧壁的一端可以相互远离布置，另一端可以相互靠近布置，由此气体流道1形成为沿着气体流动方向的渐缩流道或渐扩流道。
例如，一种实施例中，参考图1，第一流道侧壁为第一平直流道侧壁3，第二流道侧壁为第二平直流道侧壁4，第一平直流道侧壁3和第二平直流道侧壁4彼此平行地布置，这样，气体可以沿着第一平直流道侧壁3和第二平直流道侧壁4平稳流动，以平稳地通过第一阵列结构和第二阵列结构，从而可以进一步降低气体噪声。
第一散射体5和第二散射体6可以插装、激光焊接或螺纹连接或一体成型在各自的流道侧壁例如平直流道侧壁上。
另外，在该通气消声装置的一种实施例中，第一阵列结构中的多行多列的第一散射体5可以与第二阵列结构中的多行多列的第二散射体6在第一方向上错开布置。或者，另一种实施例中，参考图3，各个第一散射体5和对应的各个第二散射体6在第一方向上对齐布置，这样，进一步提升对所要消除的预定频段的低频噪声的消除效果。
另外，第一阵列结构中的行列数目可以根据实际需求来选择，第二阵列结构中的行列数目可以根据实际需求来选择，例如，消声壳体2可以形成为长条形壳体，也就是，消声壳体2在气体流道1的延伸方向上的长度大于消声壳体2横截面的宽度，使得气体流道1形成为长条形流道；其中，将气体流道1的横截面方向的数量定为列数，将气体流道1延伸方向上间隔布置的数量定为行数，在长条形流道中，第一散射体5和第二散射体6的列数小于行数，从而可以延长声波的通过路劲，以提高消声效果。例如列数可以为4-10列，进一步为5列，行数为15-20行，进一步为18行。比如，在图1和图4所示的实施例中，第一阵列结构和第二阵列结构中，第一散射体5和第二散 射体6的列数为5，行数为18。
另外，在该通气消声装置中，第一散射体5和第二散射体6可以为实心体，例如可以为实心的铅体，因此，可以根据声波能带的分布，来相应地选取在能带计算中所需密度的材料来支撑实心体。
另外，第一散射体5和第二散射体6可以为空心体，也就是散射体内形成有空腔，该空腔可以具有多种形状，优选地与散射体的外轮廓保持一致，例如，散射体为圆柱体时，圆柱体内的空腔可以为圆柱体形状。
另外，第一散射体5和第二散射体6可以具有多种外轮廓形状，这可以根据实际需求来选择。例如，一种实施例中，第一散射体5和第二散射体6可以为球体，或者，另一种实施例中，参考图1、图2和图4所示的，第一散射体5和第二散射体6为圆柱体。这样，圆柱体的外圆周面可以便于气流通过的同时，还能够有效地消除对所要消除的预定频段的低频噪声。另外，各个散射体例如圆柱体的直径可以根据实际需求来选择，例如，各个散射体的直径可以为3-8mm，进一步地为4mm。
另外，其他实施例中，第一散射体5和第二散射体6为翅片，各个翅片的朝向相同并且与气体流道1内气流方向垂直布置。这样，各个翅片之间可以形成气流引导间隔，便于气流易于通过气体流道，同时，各个翅片的翅片表面可以对所要消除的预定频段的低频噪声起到有效的消除效果。
另外，翅片整体可以为平直板体，或者为波浪形板体，或者，在 其他实施例中，参考图5，翅片包括圆柱体7和在该圆柱体7的外表面上分别相对地伸出的翼翅8。这样，这种结构的翅片可以兼具圆柱体和板体的优点，在易于气体通过气体流道1的同时，能够对所要消除的预定频段的低频噪声起到更为有效的消除效果。
另外，第一流道侧壁和第二流道侧壁例如第一平直流道侧壁3和第二平直流道侧壁4中的至少一者可以为弹性侧壁，例如，第一平直流道侧壁3和第二平直流道侧壁4为弹性侧壁，例如可以为硅橡胶侧壁，这种弹性侧壁具备弹性和硬度，以在支撑安装各个散射体的同时对声波类型的弹性波起到消除效果。
另外，第一散射体5和第二散射体6的外表面为弹性外表面，例如各个散射体的外表面套装有弹性套。这样，该弹性外表面还可以对声波类型的弹性波起到消除效果。
另外，在第一方向上，第一流道侧壁和第二流道侧壁例如平直流道侧壁的厚度、以及散射体的高度，可以根据实际需求来选择。例如，一种实施例中，平直流道侧壁的厚度可以为2-5mm，进一步为2mm；散射体的高度可以为10-15mm，进一步为10mm。
此外，第一流道侧壁和第二流道侧壁例如第一平直流道侧壁3和第二平直流道侧壁4之间的流道侧壁(例如图3中的左右两个竖向流道侧壁)可以为平直侧壁，也可以为弧形侧壁。例如，一种实施例中，第一流道侧壁和第二流道侧壁例如第一平直流道侧壁3和第二平直流道侧壁4之间的流道侧壁为平直侧壁，以使得消声壳体2的横截面为矩形或正方形，这更易于气流通过的同时起到更好的消声效果。
另外，通气消声装置的一种可选择实施例中，第一散热体5与第二散射体6之间的预定距离能够调整，这样，可以根据具体的所要消除的预定频段的低频噪声来相应地调整预定距离，从而使得该通气消声装置能够消除的噪声的范围扩大，使得通气消声装置能够适用于不同场合的噪声降低和消除。
当然，前述预定距离的调整可以通过多种实施结构来实现，例如，一种实施结构中，第一散射体5和第二散射体6中的至少一者包括能够伸缩套装的管节，这使得各个管节作为空心体，各个管节伸缩以调整预定距离，因此能够更有效地消除噪声。
在另一种实施结构中，气体流道1的连接在第一流道侧壁和第二流道侧壁例如第一平直流道侧壁3和第二平直流道侧壁4之间的两个流道侧壁分别包括能够伸缩套装的侧壁节，各个侧壁节伸缩以调整预定距离，从而使得该通气消声装置能够消除的噪声的范围扩大，使得通气消声装置能够适用于不同场合的噪声降低和消除。
在其他实施例中，第一散射体5和第二散射体6中的至少一者包括能够伸缩套装的管节，这使得各个管节作为空心体，各个管节伸缩以调整预定距离，气体流道1的连接在第一流道侧壁和第二流道侧壁例如第一平直流道侧壁3和第二平直流道侧壁4之间的两个流道侧壁分别包括能够伸缩套装的侧壁节，各个侧壁节伸缩以调整预定距离。
最后，参考图6，本发明提供一种通气治疗设备，该通气治疗设备包括以上所述的任意通气消声装置9，其中，气体流道1作为通气治疗设备的气体输送通道的通道段。例如，在图6中，通气消声装置 设置在风机10的出风口处。当然，通气消声装置也可以设置在风机10的进风口位置处，也可以设置在通气治疗设备的降噪盒的进气口处。
典型地，所述通气治疗设备可以是呼吸机、高流量湿化氧疗仪等，通过设置上述通气消声装置，这些设备在使用时的噪声明显降低，显著提升了用户体验和产品品质。
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 (13)

  1. 一种通气消声装置，其特征在于，包括具有气体流道(1)的消声壳体(2)，所述气体流道(1)的流道侧壁包括在第一方向上相对间隔布置的第一流道侧壁和第二流道侧壁，其中，
    所述第一流道侧壁的内表面上设置有朝向所述气体流道(1)内部伸出并多行多列间隔布置的多个第一散射体(5)，所述第二流道侧壁的内表面上设置有朝向所述气体流道(1)内部伸出并多行多列间隔布置的多个第二散射体(6)，所述第一散射体(5)和所述第二散射体(6)之间在第一方向上保持预定距离。
  2. 根据权利要求1所述的通气消声装置，其特征在于，所述第一流道侧壁为第一平直流道侧壁(3)，所述第二流道侧壁为第二平直流道侧壁(4)，所述第一平直流道侧壁(3)和所述第二平直流道侧壁(4)彼此平行地布置。
  3. 根据权利要求1或2所述的通气消声装置，其特征在于，各个所述第一散射体(5)和对应的各个所述第二散射体(6)在所述第一方向上相互对齐布置。
  4. 根据前述任意一项权利要求所述的通气消声装置，其特征在于，所述消声壳体(2)在所述气体流道(1)的延伸方向上的长度大于所述消声壳体(2)横截面的宽度，使得所述气体流道(1)形成为 长条形流道；
    其中，将所述气体流道(1)的横截面方向的数量定为列数，将所述气体流道(1)延伸方向上间隔布置的数量定为行数，在所述长条形流道中，所述列数小于所述行数。
  5. 根据前述任意一项权利要求所述的通气消声装置，其特征在于，所述第一散射体(5)和所述第二散射体(6)为实心体；或者，所述第一散射体(5)和所述第二散射体(6)为空心体。
  6. 根据前述任意一项权利要求所述的通气消声装置，其特征在于，所述第一散射体(5)和所述第二散射体(6)为圆柱体。
  7. 根据权利要求1-5中任意一项所述的通气消声装置，其特征在于，所述第一散射体(5)和所述第二散射体(6)为翅片，各个所述翅片的朝向相同并且与所述气体流道(1)内气流方向垂直布置。
  8. 根据权利要求7所述的通气消声装置，其特征在于，所述翅片包括圆柱体(7)和所述圆柱体(7)的外表面上分别相对地伸出的翼翅(8)。
  9. 根据前述任意一项权利要求所述的通气消声装置，其特征在于，所述第一流道侧壁和所述第二流道侧壁为弹性侧壁；
    和/或，
    所述第一散射体(5)和所述第二散射体(6)的外表面为弹性外表面。
  10. 根据前述任意一项权利要求所述的通气消声装置，其特征在于，所述消声壳体(2)的横截面为矩形或正方形。
  11. 根据前述任意一项权利要求所述的通气消声装置，其特征在于，所述预定距离能够调整。
  12. 根据权利要求11所述的通气消声装置，其特征在于，所述第一散射体(5)和所述第二散射体(6)中的至少一者包括能够伸缩套装的管节，各个所述管节伸缩以调整所述预定距离；
    和/或，
    所述气体流道(1)的连接在所述第一流道侧壁和所述第二流道侧壁之间的两个流道侧壁分别包括能够伸缩套装的侧壁节，各个所述侧壁节伸缩以调整所述预定距离。
  13. 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1-12中任意一项所述的通气消声装置(9)，其中，所述气体流道(1)作为所述通气治疗设备的气体输送通道的通道段。
PCT/CN2021/136280 2020-12-22 2021-12-08 通气消声装置和通气治疗设备 WO2022135146A1 (zh)

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