WO2014166342A1 - Air outlet duct of suction cleaner - Google Patents

Air outlet duct of suction cleaner Download PDF

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Publication number
WO2014166342A1
WO2014166342A1 PCT/CN2014/074260 CN2014074260W WO2014166342A1 WO 2014166342 A1 WO2014166342 A1 WO 2014166342A1 CN 2014074260 W CN2014074260 W CN 2014074260W WO 2014166342 A1 WO2014166342 A1 WO 2014166342A1
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WO
WIPO (PCT)
Prior art keywords
chamber
air outlet
outlet duct
vacuum cleaner
silencing
Prior art date
Application number
PCT/CN2014/074260
Other languages
French (fr)
Chinese (zh)
Inventor
孔钊
卞小贤
戴雄
朱江萍
Original Assignee
天佑电器（苏州）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 天佑电器（苏州）有限公司 filed Critical 天佑电器（苏州）有限公司
Publication of WO2014166342A1 publication Critical patent/WO2014166342A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners

Definitions

  • the invention relates to an air outlet duct of a vacuum cleaner.
  • the structure of the vacuum cleaner mainly includes: an air inlet, a dust removing chamber, a motor, an air outlet, and an air outlet duct disposed between the air inlet and the air outlet.
  • vacuum cleaners are required to be silent.
  • noise reduction measures are usually adopted in the air outlet duct, one of which is to utilize the resistive sound-absorbing principle to form a single-space flip structure of the air outlet duct;
  • the wind tunnel is set to rotate directly after one rotation. Therefore, the noise reduction measures of the air outlets of such vacuum cleaners are relatively simple, the frequency of the audio cancellation rate is not wide, the noise of the whole machine is high, and the ear feeling is not good. Summary of the invention
  • An object of the present invention is to provide an air outlet duct of a vacuum cleaner, which is a silent design and has a prominent noise reduction effect, in view of the above-mentioned drawbacks in the prior art.
  • an air outlet duct of a vacuum cleaner which is disposed between an air inlet and an air outlet of the vacuum cleaner, wherein the air outlet duct is provided a power chamber and at least one muffler chamber communicating with the power chamber, wherein the power chamber is equipped with a motor, and the airflow direction of the power chamber and the airflow direction of the at least one muffler chamber are reversed in a three-dimensional position , the wind
  • the track is also provided with a spoiler, the air flow of the spoiler colliding with the airflow of the at least one muffler chamber.
  • the at least one muffler chamber includes a first muffler chamber in communication with the power chamber and a second muffler chamber in communication with the first muffler chamber.
  • the spoiler is disposed between the first silencing chamber and the second silencing chamber.
  • the spoiler includes a first orifice wall, the gas flow of the orifice wall colliding with the gas flow in the second muffler chamber.
  • the total area of the small holes of the first orifice plate wall is more than 2.5 times the area of the inlet port.
  • the first muffler chamber is disposed laterally of the power chamber, and the second muffler chamber is positioned above the power chamber and the first muffler chamber.
  • the angle of the flip direction is between 90-180 degrees.
  • the air outlet duct is further provided with a second small hole plate wall at the air outlet, and the total area of the small holes of the second small hole plate wall is more than three times the area of the air inlet.
  • the vacuum cleaner is further provided with an outer casing, and an outer space is formed between the outer casing and the wall of the second muffler chamber.
  • the present invention has the advantages that: the air outlet duct of the vacuum cleaner provided by the present invention is provided with a power chamber and at least one silencing chamber communicating with the power chamber, wherein the power chamber is installed a motor, a flow direction of the power chamber and the at least one elimination
  • the airflow direction in the sound chamber has a flip direction in the three-dimensional space position, which makes full use of the chamber space, composites various noise reduction measures, wide range of frequency cancellation, ultra-quiet machine, and good ear feeling.
  • Figure 1 is a partial perspective view of a vacuum cleaner corresponding to a preferred embodiment of the present invention.
  • Figure 2 is a partial plan view of the vacuum cleaner of Figure 1.
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 1.
  • a vacuum cleaner corresponding to a preferred embodiment of the present invention is primarily used for cleaning household and other special locations, including a housing portion 10 and a motor 12 located within the housing portion 10.
  • An air inlet 25 is provided below the motor 12, and an air outlet 24 is provided on the casing portion 10.
  • the housing portion 10 includes a lower cover 15 and a top cover 14 mounted on the lower cover 15.
  • the vacuum cleaner further includes an air outlet duct 34 disposed between the air inlet 25 and the air outlet 24 of the cleaner.
  • the outlet duct 34 is provided with a power chamber 11 and at least one silencing chamber in communication with the power chamber 11.
  • the motor 12 is mounted in the power chamber 11, and the upper and lower ends thereof are provided with a vibration damping pad 17, and the peripheral wall of the motor 11 is provided with corrugations 18, and the corrugations 18 are uneven in size, so that the sound waves are different in reflection angle. Mutual offsetting weakness.
  • the at least one muffler chamber includes a first muffler chamber 27 disposed beside the power chamber 11 and a second muffler chamber 28 above the power chamber 11 and the first muffler chamber 27.
  • the airflow direction of the power chamber 11 and the airflow direction in the first silencing chamber 27 and the second silencing chamber 28 are reversed and turned in a three-dimensional position, and the angle of the reverse direction is between 90 and 180 degrees, and the power chamber 11
  • a sound absorbing material 38 is attached to the inner wall of the air outlet duct 34.
  • the air outlet duct is further provided with a spoiler between the first silencing chamber 27 and the second silencing chamber 28, the spoiler comprising a first orifice wall 1, the airflow of the first orifice wall 1
  • the e and the airflow d in the second muffler chamber 28 collide with each other, which is convenient for reducing noise.
  • the singularity of the aperture of the first apertured wall 1 is greater than 1.55, and the ratio of the aperture to the aperture of the first apertured wall 1 is greater than 1.75.
  • the noise is raised to the high frequency range of an invisible valve.
  • the air outlet duct 34 further has a second small hole wall 2 located at the air outlet 24, and the total area of the small holes of the second small hole wall 2 is more than three times the area of the air inlet 25.
  • the total area of the small holes of the second orifice plate wall 2 is more than three times the area of the inlet port 25.
  • an air compartment 16 is formed between the top cover 14 and the wall of the second muffler chamber 28. Since the velocity of the sound and the angle of refraction of the air and the solid are different, the sound waves cancel each other and the energy is weak.
  • the air outlet duct of the vacuum cleaner disclosed in the present invention as indicated by arrows a, b, c, d.
  • the airflow (arrow a) enters from the air inlet, first through the power chamber upwards (arrow b), then flips 90 degrees into the first silencing chamber (arrow c) roughly in three-dimensional space, and then tilts upward 90-180 degrees from
  • the duct 19 enters the second silencing chamber (arrow d), while a small portion of the airflow (as indicated by arrow e) flows upward from the first orifice wall 1 of the spoiler and also into the second silencing chamber, so that in the second silencing chamber
  • the two air streams d and e in 28 collide with each other to reduce noise, and finally the air flows out through the second orifice wall from the air outlet. It can be seen that the air duct has fully utilized the space of the chamber, combined with various noise reduction measures, a wide range of audio frequency cancellation, ultra-quiet machine and good ear feeling.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Building Environments (AREA)
  • Electric Suction Cleaners (AREA)

Abstract

Disclosed is an air outlet duct of a suction cleaner, which is arranged between an air inlet and an air outlet of the suction cleaner. The air outlet duct is provided with a power chamber and at least one anechoic chamber in communication with the power chamber. A motor is arranged in the power chamber. The air flow direction of the power chamber and the air flow direction in the at least one anechoic chamber are turned over and changed in a three dimensional spatial location. The air outlet duct is also provided with a spoiler device, and the air flow of the spoiler device and the air flow of the at least one anechoic chamber collide mutually. The air outlet duct of the suction cleaner is compounded with various noise reduction measures, and takes full advantage of the chamber space, so that the range of a silencing frequency is wide, the noise of the whole machine is low, and kept at a tolerable level.

Description

说 明 书  Description
一种吸尘器的出风风道 技术领域  Air outlet duct of vacuum cleaner
本发明涉及一种吸尘器的出风风道。  The invention relates to an air outlet duct of a vacuum cleaner.
背景技术 Background technique
吸尘器的结构主要包括： 进风口、 除尘腔、 电机、 出风口以及设 置在进风口与出风口之间的出风风道。在家用及特殊场所，比如宾馆、 办公室等， 均要求吸尘器为静音设置。 在现有技术中， 通常在出风风 道中采取降噪措施， 其中一种措施为利用阻性消音原理， 将出风风道 形成一种单一空间上的翻转结构； 另一种措施为将出风风道设置为旋 转一圈后直接出风。 所以， 这类吸尘器的出风风道的降噪措施较为单 一， 消音频率范围不广， 整机噪音高， 耳感不好。 发明内容  The structure of the vacuum cleaner mainly includes: an air inlet, a dust removing chamber, a motor, an air outlet, and an air outlet duct disposed between the air inlet and the air outlet. In households and special places, such as hotels, offices, etc., vacuum cleaners are required to be silent. In the prior art, noise reduction measures are usually adopted in the air outlet duct, one of which is to utilize the resistive sound-absorbing principle to form a single-space flip structure of the air outlet duct; The wind tunnel is set to rotate directly after one rotation. Therefore, the noise reduction measures of the air outlets of such vacuum cleaners are relatively simple, the frequency of the audio cancellation rate is not wide, the noise of the whole machine is high, and the ear feeling is not good. Summary of the invention
本发明的目的在于针对现有技术中的上述缺陷，提供一种吸尘器 的出风风道， 其为静音设计， 降噪效果突出。  SUMMARY OF THE INVENTION An object of the present invention is to provide an air outlet duct of a vacuum cleaner, which is a silent design and has a prominent noise reduction effect, in view of the above-mentioned drawbacks in the prior art.
为实现上述发明目的， 本发明采用了如下技术方案： 一种吸尘器 的出风风道， 其设置在所述吸尘器的进风口与出风口之间， 其特征在 于：所述出风风道设有动力室和与所述动力室相连通的至少一个消音 室， 所述动力室内安装有电机， 所述动力室的气流方向与所述至少一 个消音室内的气流方向在三维空间位置上存在翻转变向，所述出风风 道还设有扰流装置，所述扰流装置的气流与所述至少一个消音室的气 流互相碰撞。 In order to achieve the above object, the present invention adopts the following technical solution: an air outlet duct of a vacuum cleaner, which is disposed between an air inlet and an air outlet of the vacuum cleaner, wherein the air outlet duct is provided a power chamber and at least one muffler chamber communicating with the power chamber, wherein the power chamber is equipped with a motor, and the airflow direction of the power chamber and the airflow direction of the at least one muffler chamber are reversed in a three-dimensional position , the wind The track is also provided with a spoiler, the air flow of the spoiler colliding with the airflow of the at least one muffler chamber.
此外， 本发明还提供如下附属技术方案：  In addition, the present invention also provides the following subsidiary technical solutions:
所述至少一个消音室包括与所述动力室相连通的第一消音室和 与所述第一消音室相连通的第二消音室。  The at least one muffler chamber includes a first muffler chamber in communication with the power chamber and a second muffler chamber in communication with the first muffler chamber.
所述扰流装置设置在所述第一消音室与所述第二消音室之间。 所述扰流装置包括第一小孔板壁，所述小孔板壁的气流与所述第 二消音室内的气流相互碰撞。  The spoiler is disposed between the first silencing chamber and the second silencing chamber. The spoiler includes a first orifice wall, the gas flow of the orifice wall colliding with the gas flow in the second muffler chamber.
所述第一小孔板壁的小孔总面积为所述进风口面积的 2. 5 倍以 上。  The total area of the small holes of the first orifice plate wall is more than 2.5 times the area of the inlet port.
所述动力室、所述第一消音室以及所述第二消音室三者的截面面 积大小之间为突变。  There is a sudden change in the cross-sectional area between the power chamber, the first silencing chamber, and the second silencing chamber.
所述第一消音室设置在所述动力室的侧旁，而所述第二消音室位 于所述动力室和所述第一消音室的上方。  The first muffler chamber is disposed laterally of the power chamber, and the second muffler chamber is positioned above the power chamber and the first muffler chamber.
所述翻转变向的角度在 90-180度之间。  The angle of the flip direction is between 90-180 degrees.
所述出风风道还设有位于所述出风口处的第二小孔板壁，所述第 二小孔板壁的小孔总面积为所述进风口面积的 3倍以上。  The air outlet duct is further provided with a second small hole plate wall at the air outlet, and the total area of the small holes of the second small hole plate wall is more than three times the area of the air inlet.
所述吸尘器还设置外壳，所述外壳与所述第二消音室的墙壁之间 形成一层空气隔腔。  The vacuum cleaner is further provided with an outer casing, and an outer space is formed between the outer casing and the wall of the second muffler chamber.
相比于现有技术， 本发明的优势在于： 本发明所提供的吸尘器的 出风风道， 其设有动力室和与所述动力室相连通的至少一个消音室， 所述动力室内安装有电机，所述动力室的气流方向与所述至少一个消 音室内的气流方向在三维空间位置上存在翻转变向，其充分利用了腔 室空间， 复合多种降噪措施， 消音频率范围广， 整机超静音， 耳感良 好。 附图说明 Compared with the prior art, the present invention has the advantages that: the air outlet duct of the vacuum cleaner provided by the present invention is provided with a power chamber and at least one silencing chamber communicating with the power chamber, wherein the power chamber is installed a motor, a flow direction of the power chamber and the at least one elimination The airflow direction in the sound chamber has a flip direction in the three-dimensional space position, which makes full use of the chamber space, composites various noise reduction measures, wide range of frequency cancellation, ultra-quiet machine, and good ear feeling. DRAWINGS
图 1是对应于本发明较佳实施例的吸尘器的局部立体图。  BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial perspective view of a vacuum cleaner corresponding to a preferred embodiment of the present invention.
图 2是图 1中吸尘器的局部俯视图。  Figure 2 is a partial plan view of the vacuum cleaner of Figure 1.
图 3是沿着图 1中 A-A线的剖视图。  Figure 3 is a cross-sectional view taken along line A-A of Figure 1.
图 4是沿着图 1中 B-B线的剖视图。  Figure 4 is a cross-sectional view taken along line B-B of Figure 1.
具体实施方式 detailed description
以下结合较佳实施例及其附图对本发明技术方案作进一步非限 制性的详细说明。  The technical solutions of the present invention are further described in detail below in conjunction with the preferred embodiments and the accompanying drawings.
参照图 1至图 2， 对应于本发明较佳实施例的吸尘器， 其主要用 于家庭及其他特殊场所打扫卫生， 其包括壳体部 10和位于壳体部 10 内的电机 12。 在电机 12的下方设置进风口 25， 而出风口 24设置在 壳体部 10上。此外， 壳体部 10包括下盖 15和安装在下盖 15上的顶 盖 14 。  Referring to Figures 1 through 2, a vacuum cleaner corresponding to a preferred embodiment of the present invention is primarily used for cleaning household and other special locations, including a housing portion 10 and a motor 12 located within the housing portion 10. An air inlet 25 is provided below the motor 12, and an air outlet 24 is provided on the casing portion 10. Further, the housing portion 10 includes a lower cover 15 and a top cover 14 mounted on the lower cover 15.
进一步参照图 3至图 4， 上述吸尘器还包括出风风道 34， 其设置 在所述吸尘器的进风口 25和出风口 24之间。 所述出风风道 34设有 动力室 11和与动力室 11相连通的至少一个消音室。 上述电机 12安 装在动力室 11 内， 其上、 下两端均设有减振垫 17， 并且电机 11的 周壁设置波纹 18， 所述波纹 18大小不均， 使声波因反射角度不同而 相互抵消衰弱。 With further reference to FIGS. 3 through 4, the vacuum cleaner further includes an air outlet duct 34 disposed between the air inlet 25 and the air outlet 24 of the cleaner. The outlet duct 34 is provided with a power chamber 11 and at least one silencing chamber in communication with the power chamber 11. The motor 12 is mounted in the power chamber 11, and the upper and lower ends thereof are provided with a vibration damping pad 17, and the peripheral wall of the motor 11 is provided with corrugations 18, and the corrugations 18 are uneven in size, so that the sound waves are different in reflection angle. Mutual offsetting weakness.
动力室 11的气流方向与所述至少一个消音室内的气流方向在三 维空间位置上存在翻转变向。具体地， 上述至少一个消音室包括设置 在动力室 11侧旁的第一消音室 27以及在动力室 11和第一消音室 27 上方的第二消音室 28。动力室 11的气流方向与第一消音室 27、第二 消音室 28内的气流方向在三维空间位置上存在翻转变向， 翻转变向 的角度在 90-180度之间， 并且动力室 11、 第一消音室 27以及第二 消音室 28三者的截面面积大小之间为突变， 其中突变截面积为进风 口 25面积的 3倍以上。 所述出风风道 34内壁加贴有消音材料 38。 上述所述出风风道还设有位于第一消音室 27与第二消音室 28之间的 扰流装置， 该扰流装置包括第一小孔板壁 1， 该第一小孔板壁 1的气 流 e与第二消音室 28内的气流 d互相碰撞， 这样便于降低噪音。 另 外， 所述第一小孔板壁 1的小孔总面积为进风口 25面积的 2. 5倍以 上， 并且第一小孔板壁 1的小孔中心距与孔径比在 1. 75以上， 以使 噪音提高到一个人耳不可听阀的高频范围。 而出风风道 34还设有位 于出风口 24处的第二小孔板壁 2， 所述第二小孔板壁 2的小孔总面 积为进风口 25面积的 3倍以上。 上述第二小孔板壁 2的小孔总面积 为进风口 25面积的 3倍以上。  The direction of the airflow of the power chamber 11 and the direction of the airflow in the at least one muffler chamber are reversed in a three-dimensional spatial position. Specifically, the at least one muffler chamber includes a first muffler chamber 27 disposed beside the power chamber 11 and a second muffler chamber 28 above the power chamber 11 and the first muffler chamber 27. The airflow direction of the power chamber 11 and the airflow direction in the first silencing chamber 27 and the second silencing chamber 28 are reversed and turned in a three-dimensional position, and the angle of the reverse direction is between 90 and 180 degrees, and the power chamber 11 There is a sudden change in the cross-sectional area between the first muffler chamber 27 and the second muffler chamber 28, wherein the abrupt cross-sectional area is more than three times the area of the air inlet 25. A sound absorbing material 38 is attached to the inner wall of the air outlet duct 34. The air outlet duct is further provided with a spoiler between the first silencing chamber 27 and the second silencing chamber 28, the spoiler comprising a first orifice wall 1, the airflow of the first orifice wall 1 The e and the airflow d in the second muffler chamber 28 collide with each other, which is convenient for reducing noise. The singularity of the aperture of the first apertured wall 1 is greater than 1.55, and the ratio of the aperture to the aperture of the first apertured wall 1 is greater than 1.75. The noise is raised to the high frequency range of an invisible valve. The air outlet duct 34 further has a second small hole wall 2 located at the air outlet 24, and the total area of the small holes of the second small hole wall 2 is more than three times the area of the air inlet 25. The total area of the small holes of the second orifice plate wall 2 is more than three times the area of the inlet port 25.
此外，上述顶盖 14与第二消音室 28的墙壁之间形成一层空气隔 腔 16， 由于空气与固体对声音的传播速度与折射角度不同， 这样便 使得声波相互抵消， 能量衰弱。  Further, an air compartment 16 is formed between the top cover 14 and the wall of the second muffler chamber 28. Since the velocity of the sound and the angle of refraction of the air and the solid are different, the sound waves cancel each other and the energy is weak.
本发明所揭示的吸尘器的出风风道， 如箭头 a、 b、 c、 d所示， 其气流（箭头 a)从进风口进入， 首先经过动力室向上（箭头 b)， 然 后大致在三维空间空间上翻转 90度进入第一消音室 （箭头 c )， 再斜 向上翻转 90-180度从风管 19进入第二消音室 （箭头 d)， 同时小部 分气流（如箭头 e所示）从扰流装置的第一小孔板壁 1向上流出也进 入第二消音室， 使得在第二消音室 28内的两股气流 d和 e相互碰撞 而降噪， 最后气流经过第二小孔板壁从出风口流出。可见， 出风风道 充分利用了腔室空间， 复合多种降噪措施， 消音频率范围广， 整机超 静音， 耳感良好。 The air outlet duct of the vacuum cleaner disclosed in the present invention, as indicated by arrows a, b, c, d, The airflow (arrow a) enters from the air inlet, first through the power chamber upwards (arrow b), then flips 90 degrees into the first silencing chamber (arrow c) roughly in three-dimensional space, and then tilts upward 90-180 degrees from The duct 19 enters the second silencing chamber (arrow d), while a small portion of the airflow (as indicated by arrow e) flows upward from the first orifice wall 1 of the spoiler and also into the second silencing chamber, so that in the second silencing chamber The two air streams d and e in 28 collide with each other to reduce noise, and finally the air flows out through the second orifice wall from the air outlet. It can be seen that the air duct has fully utilized the space of the chamber, combined with various noise reduction measures, a wide range of audio frequency cancellation, ultra-quiet machine and good ear feeling.
需要指出的是，上述较佳实施例仅为说明本发明的技术构思及特 点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以 实施， 并不能以此限制本发明的保护范围。凡根据本发明精神实质所 作的等效变化或修饰， 都应涵盖在本发明的保护范围之内。  It should be noted that the above-described preferred embodiments are merely illustrative of the technical idea and the features of the present invention. The purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention. protected range. Equivalent variations or modifications in accordance with the spirit of the invention are intended to be included within the scope of the invention.

Claims

权 利 要 求 书 Claim
1. 一种吸尘器的出风风道， 其设置在所述吸尘器的进风口与出风口之间， 其特征在于： 所述出风风道设有动力室和与所述动力室相连通的至少一个消音 室， 所述动力室内安装有电机， 所述动力室的气流方向与所述至少一个消音室 内的气流方向在三维空间位置上存在翻转变向， 所述出风风道还设有扰流装置， 所述扰流装置的气流与所述至少一个消音室的气流互相碰撞。 An air outlet duct of a vacuum cleaner, disposed between an air inlet and an air outlet of the vacuum cleaner, wherein: the air outlet duct is provided with a power chamber and at least communicating with the power chamber a muffler chamber, wherein the power chamber is equipped with a motor, the airflow direction of the power chamber and the airflow direction of the at least one muffler chamber are reversed in a three-dimensional position, and the air outlet duct is further provided with a spoiler The device, the airflow of the spoiler collides with the airflow of the at least one muffler chamber.
2.根据权利要求 1 所述吸尘器的出风风道， 其特征在于： 所述至少一个消 音室包括与所述动力室相连通的第一消音室和与所述第一消音室相连通的第二 消音室。  2. The air outlet duct of the vacuum cleaner according to claim 1, wherein: said at least one silencing chamber comprises a first silencing chamber in communication with said power chamber and a first communicating with said first silencing chamber Second silencer room.
3.根据权利要求 2所述吸尘器的出风风道， 其特征在于： 所述扰流装置设 置在所述第一消音室与所述第二消音室之间。  The air outlet duct of the vacuum cleaner according to claim 2, wherein: said spoiler is disposed between said first silencing chamber and said second silencing chamber.
4.根据权利要求 3所述的吸尘器的出风风道， 其特征在于： 所述扰流装置 包括第一小孔板壁， 所述小孔板壁的气流与所述第二消音室内的气流相互碰撞。  The air outlet duct of the vacuum cleaner according to claim 3, wherein: the spoiler comprises a first orifice wall, and the airflow of the orifice wall collides with the airflow in the second silencing chamber .
5.根据权利要求 4所述的吸尘器的出风风道， 其特征在于： 所述第一小孔 板壁的小孔总面积为所述进风口面积的 2. 5倍以上。  The air outlet duct of the vacuum cleaner according to claim 4, wherein: the total area of the small holes of the first small hole wall is more than 2.5 times the area of the air inlet.
6.根据权利要求 2所述的吸尘器的出风风道， 其特征在于： 所述动力室、 所述第一消音室以及所述第二消音室三者的截面面积大小之间为突变。  The air outlet duct of the vacuum cleaner according to claim 2, wherein a difference in cross-sectional area between the power chamber, the first silencing chamber, and the second silencing chamber is abrupt.
7.根据权利要求 2所述的吸尘器的出风风道， 其特征在于： 所述第一消音 室设置在所述动力室的侧旁， 而所述第二消音室位于所述动力室和所述第一消 音室的上方。  The air outlet duct of the vacuum cleaner according to claim 2, wherein: the first silencing chamber is disposed at a side of the power chamber, and the second silencing chamber is located at the power chamber and the Above the first muffler chamber.
8.根据权利要求 1 所述的吸尘器的出风风道， 其特征在于： 所述翻转变向 的角度在 90-180度之间。  The air outlet duct of the vacuum cleaner according to claim 1, wherein the angle of the reverse direction is between 90 and 180 degrees.
9.根据权利要求 1 所述的吸尘器的出风风道， 其特征在于： 其还设有位于 所述出风口处的第二小孔板壁， 所述第二小孔板壁的小孔总面积为所述进风口 面积的 3倍以上。  The air outlet duct of the vacuum cleaner according to claim 1, further comprising: a second small hole plate wall at the air outlet, wherein a total area of the small holes of the second small hole wall is The air inlet area is more than three times.
10.根据权利要求 1所述的吸尘器的出风风道， 其特征在于： 所述吸尘器还 设置外壳， 所述外壳与所述第二消音室的墙壁之间形成一层空气隔腔。  The air outlet duct of the vacuum cleaner according to claim 1, wherein: the cleaner is further provided with an outer casing, and an air compartment is formed between the outer casing and the wall of the second muffler chamber.
PCT/CN2014/074260 2013-04-12 2014-03-28 Air outlet duct of suction cleaner WO2014166342A1 (en)

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