WO2015103966A1 - 一种干湿两用吸尘器 - Google Patents

一种干湿两用吸尘器 Download PDF

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Publication number
WO2015103966A1
WO2015103966A1 PCT/CN2015/070195 CN2015070195W WO2015103966A1 WO 2015103966 A1 WO2015103966 A1 WO 2015103966A1 CN 2015070195 W CN2015070195 W CN 2015070195W WO 2015103966 A1 WO2015103966 A1 WO 2015103966A1
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hole
air
open end
wet
vacuum cleaner
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PCT/CN2015/070195
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English (en)
French (fr)
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汪波
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天佑电器（苏州）有限公司
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Publication of WO2015103966A1 publication Critical patent/WO2015103966A1/zh

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    • 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

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  • the present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner with a duct silencer.
  • Patent CN200510095446 has improved the above problems.
  • the patent has a small hole at the air outlet of the vacuum cleaner to achieve the purpose of noise reduction. This structure does not change the direction of the airflow through the small hole, and the depth of the small hole is required by the mold and the injection molding. Limitation, the noise reduction effect is not very obvious.
  • Korean Patent KR20070078336 discloses a porous tubular structure in the internal air duct of the vacuum cleaner, which uses a similar noise reduction method to reduce noise by means of small hole injection.
  • the technical problem to be solved by the present invention is to provide a vacuum cleaner with better silencing effect, which reduces the running noise of the whole machine while ensuring air flow.
  • the invention provides a wet and dry vacuum cleaner, comprising: a duct and a silencing tube, wherein the silencing tube is installed in the dust collecting duct, the silencing tube is provided with an open end and a closed end, and the closed end is opposite to the open end, and the opening is An extending wall is disposed between the end and the closed end, and a hole is arranged in the extending wall, and the airflow in the air duct flows from the open end into the muffler tube to flow out from the hole, the muffling pipe is further provided with a wind plate, and the air plate is provided with a hole, The direction of the air outlet of the wind plate hole and the direction of the air outlet of the hole in the extension wall form a spoiler area.
  • the aperture of the aperture in the extension wall is less than or equal to 5 mm, the spacing of the apertures of any two apertures and the two apertures d1, d2 and the inequality l ⁇ d1 + d2.
  • the apertures d1 and d2 are equal.
  • the apertures d1 and d2 are not equal.
  • the spoiler area is located in the cavity.
  • the air duct has a card slot fixing device, and the wind plate is inserted into the card slot.
  • the muffler tube is gradually reduced in cross section from the open end to the closed end.
  • part of the airflow in the air duct is ejected from the open end into the silencer tube airflow through the hole of less than 5 mm on the extension wall to form a high frequency sound outside the hearing range of the human ear, and another part of the airflow in the air passage passes through the wind panel.
  • the hole is ejected, and since the air outlet direction of the air plate hole intersects with the air outlet direction of the hole in the extension wall, the air flow ejected from the air plate hole changes the direction of the air flow ejected in the hole in the extension wall to form an air turbulence phenomenon.
  • the above-mentioned spoiler phenomenon can reduce the noise level to improve the noise reduction effect of the muffler tube, and the hole hole is not too dense to ensure noise reduction The effect, while ensuring the amount of air.
  • Figure 1 is a cross-sectional view of the cleaner air duct.
  • Figure 2 is a cross-sectional view taken along line X-X of Figure 1.
  • Figure 3 is a partially enlarged schematic view of Figure 2.
  • Figure 4 is a schematic view of the muffler tube.
  • Figure 5 is a front view of the muffler tube.
  • Figure 6 is a side view of the muffler tube.
  • Figure 7 is a partial enlarged view of Figure 6.
  • Figure 8 is a schematic cross-sectional view of the bottom of the cleaner air duct.
  • Figure 9 is a schematic view of the second embodiment of the muffler tube.
  • Figure 10 is a partially enlarged schematic view of Figure 9.
  • Embodiment 1 A vacuum cleaner shown in FIG. 1 includes a head 6 for supplying power, and a vacuum cleaner air duct 1 is disposed in the head 6.
  • the dust suction duct 1 is annularly formed by the peripheral wall 12, and the air duct is installed.
  • the card slot 11 is disposed on the peripheral wall 12, the air plate 21 is disposed on the periphery of the opening 22 of the muffling tube 2, and the air plate 21 is provided with a hole 210.
  • the connection between the card slot 11 and the air plate 21 is tight so that the airflow cannot pass. a gap between the card slot 11 and the air panel 21, a part of the air
  • the flow enters the inside of the muffler tube 2 through the open end 22 of the muffler tube 2, and then flows through the muffler tube 2 into the cavity 3 between the extension wall 23 and the peripheral wall 12.
  • part of the airflow V1 when the cleaner is in operation is discharged from the open end 22 into the muffler 2, and the airflow is ejected through the hole 25 of the extension wall 23 of less than 5 mm to form a high-frequency sound outside the hearing range of the human ear.
  • Another portion of the airflow V2 in the air duct is ejected through the hole 210 in the wind plate. Since the air outlet direction of the air plate hole 210 intersects with the air outlet direction of the hole 25 in the extension wall, the airflow ejected by the wind plate hole 210 causes the airflow on the extension wall.
  • the direction of the airflow emitted by the hole 25 is changed to form an air turbulence phenomenon, and a turbulence zone S is formed in the cavity 3 between the muffler pipe and the air duct wall.
  • the above turbulence phenomenon can further reduce the noise level and improve the muffler pipe. The noise reduction effect thus achieves the purpose of silence.
  • the card slot 11 is disposed on the peripheral wall 12 and is surrounded by the protrusions 13 on both sides.
  • the wind plate 21 and the card slot 11 have a simple structure and a good sealing performance, which can simplify the production process and reduce manpower investment. Increase productivity.
  • a second embodiment of the muffling tube 2 has the same outline as that of the muffling tube of the first embodiment, that is, includes an open end 22 and a closed end 24 , and the open end 22 is opposite to the closed end 24 , and is open.
  • An extension wall 23 is provided between the end 22 and the closed end 24, the extension wall 23 has a bottom surface 26 and two planar sides 27, the top surface being a curved surface 28, the height of the curved surface 28 from the open end 22 to the closed end.
  • the gradual lowering of the cross-sectional area from the open end 22 to the closed end 24 is gradually reduced, and the circular opening 25 and the small hole 29 are provided on the four faces of the extending wall 23.
  • the size of the aperture on the extension wall 23 is changed, the muffling tube 2 is covered with a circular hole 25 near the open end 22, and the muffler tube 2 is close to the closed end 24
  • the aperture 29 is covered, and the aperture of the circular aperture 25 is larger than the aperture of the aperture 29, and the apertures of the circular aperture 25 and the aperture 29 are both less than 5 mm.
  • the aperture d1 of the circular aperture 25 and the aperture d2 of the aperture 29 and the spacing of the apertures l satisfy the inequality l ⁇ d1 + d2.
  • This inequality makes the circular aperture 25 and the aperture 29 not too densely affecting the noise reduction effect.
  • a part of the airflow from the open end enters the muffler tube during the operation of the vacuum cleaner, and the airflow passes through A hole of less than 5 mm on the extension wall is ejected to form a high-frequency sound outside the hearing range of the human ear; on the other hand, another part of the airflow in the air channel is ejected through a hole in the wind plate, due to the direction and extension of the air outlet of the hole on the wind plate.
  • the air outlet direction of the holes in the wall meets, so the air flow ejected from the holes on the wind plate changes the direction of the air flow ejected from the holes in the extension wall to form an air turbulence phenomenon, and is in the cavity between the muffler pipe and the air duct wall.
  • the above-mentioned spoiler phenomenon can reduce the noise level and improve the noise reduction effect of the muffler.
  • the technical solution can reduce the overall noise reduction effect by 3-4 dB.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electric Suction Cleaners (AREA)

Abstract

一种吸尘器，包括：风道（1）、消音管（2），消音管（2）安装在吸尘风道（1）内，消音管（2）设有开口端（22）和封闭端（24），封闭端（24）与开口端（22）相对设置，开口端（22）与封闭端（24）之间存在延伸壁（23），延伸壁（23）上布置孔（25，29），风道（1）内气流从开口端（22）进入消音管（2）从孔（25，29）流出，消音管（2）还设置有风板（21），风板（21）上设置孔（210），风板（21）孔（210）的出气方向与延伸壁（23）上孔（25，29）的出气方向交汇形成扰流区（S）。扰流区（S）内形成的扰流现象减小了噪声等级，提高了消音管（2）的降噪效果。

Description

一种干湿两用吸尘器 技术领域
本发明涉及吸尘器，尤其是带有风道消音装置的吸尘器。
背景技术
现有吸尘器产品采用多孔材料如海绵等包裹在电机出风口来达到降噪的目的，这种做法的缺点在于多孔材料的使用影响了出风的流量。专利CN200510095446对上述问题有所改进，该专利在吸尘器出风口位置设置小孔来达到降噪的目的，这种结构没有使通过小孔的气流方向发生改变，且小孔的深度受模具及注塑要求限制，降噪效果不是十分明显。韩国专利KR20070078336在吸尘器的内部风道中揭示了一种多孔管状结构，其使用相似的降噪方式既小孔喷注的方式降噪。
发明内容
本发明所要解决的技术问题是提供一种消音效果更好的吸尘器，降低整机运行噪声的同时保证空气流量。
本发明提供一种干湿两用吸尘器，其包括：风道、消音管，所述消音管安装在吸尘风道内，消音管设有开口端和封闭端，封闭端与开口端相对设置，开口端与封闭端之间存在延伸壁，延伸壁上布置孔，风道内气流从开口端进入消音管从所述孔流出，所述的消音管还设置有风板，风板上设置孔，所述风板孔的出气方向与延伸壁上孔的出气方向交汇形成扰流区。
优选的，延伸壁上孔的孔径小于或等于5毫米，任意两孔孔心间距l与两孔径d1、d2和满足不等式l≥d1+d2。
优选的，孔径d1和d2相等。
优选的，孔径d1和d2不相等。
优选的，延伸壁与风道周壁之间存在腔体，所述的扰流区位于腔体内。
优选的，风道内具有卡槽固定装置，所述的风板插入卡槽中。
优选的，所述消音管由开口端到封闭端横截面逐渐减小。
吸尘器运行时，风道内的部分气流由开口端进入消音管气流经过延伸壁上的小于5毫米的孔喷出，形成人耳听觉范围外的高频声音，风道内的另一部分气流经风板上的孔喷出，由于风板孔的出气方向与延伸壁上孔的出气方向交汇，因此由风板孔喷出的气流使延伸壁上的孔内喷出的气流方向发生改变形成空气扰流现象，并在消音管与风道壁之间的腔体内形成扰流区，上述的扰流现象能够进减小噪声等级提高消音管的降噪效果，所述的使圆孔不过于密集确保降噪效果，同时保证出风量。
附图说明
图1是吸尘器风道剖面视图。
图2是图1中X-X剖面示意图。
图3是图2中局部放大示意图。
图4是消音管示意图。
图5是消音管正面视图。
图6是消音管侧面视图。
图7是图6局部放大图。
图8是吸尘器风道底部剖面示意图。
图9是实施例二消音管示意图。
图10是图9局部放大示意图。
具体实施方式
以下结合附图对本发明进行进一步的说明：
实施例一：参照图1所示一种吸尘器包括：用于提供动力的头部6，头部6内设有吸尘器风道1，吸尘风道1呈环形由周壁12围成，风道内装有消音管2，消音管2与风道通过卡槽11与风板21之间的连接固定，消音管2延伸壁23与周壁12之间存在腔体3。所述卡槽11设置在周壁12上，所述风板21设置在消音管2的开口22外围，风板21上设置孔210，卡槽11与风板21之间的连接紧密使气流不能通过卡槽11与风板21之间的连接缝隙，一部分气 流通过消音管2开口端22进入消音管2内部，再由消音管2流向延伸壁23与周壁12之间的腔体3内。
d1＝d2参照图3所示，吸尘器工作时部分气流V1由开口端22进入消音管2内气流经过延伸壁23上小于5毫米的孔25喷出，形成人耳听觉范围外的高频声音，风道内的另一部分气流V2经风板上孔210喷出，由于风板孔210的出气方向与延伸壁上孔25的出气方向交汇，因此由风板孔210喷出的气流使延伸壁上的孔25喷出的气流方向发生改变形成空气扰流现象，并在消音管与风道壁之间的腔体3内形成扰流区S，上述的扰流现象能够进一步减小噪声等级提高消音管的降噪效果从而达到消音的目的。
l参照图8所示，卡槽11设置在周壁12上由两侧凸起13围成，风板21与卡槽11结构简单连接牢固密封性能良好，能够简化生产工艺步揍，减少人力投入，提高生产效率。
实施例二
参照图9所示：消音管2的第二种实施方式，其外形轮廓与实施方式一中的消音管相同，即包括开口端22与封闭端24，开口端22与封闭端24相对设置，开口端22与封闭端24之间设有延伸壁23，延伸壁23具有一个底面26和两个均为平面的侧面27，顶面为弧面28，弧面28的高度从开口端22到封闭端24逐渐降低，从开口端22到封闭端24的横截面积逐渐减小，延伸壁23四个面上设有圆孔25和小孔29。
消音管2相对于实施例一所述的消音管2，其延伸壁23上的孔径的大小有所改变，消音管2靠近开口端22部布满圆孔25，消音管2靠近封闭端24部布满小孔29，所述圆孔25孔径大于小孔29孔径，所述圆孔25和小孔29的孔径均小于5毫米。
参照图10所示：圆孔25孔径d1与小孔29孔径d2和孔心间距l满足不等式l≥d1+d2，该不等式使圆孔25和小孔29不会过于密集影响降噪效果，在保证出风效果的情况下，孔心间距l越小消音管2的体积越小，使之便于安装在吸尘器风道1较小的空间内。
在上述两个实施例中，一方面吸尘器运行时一部分气流由开口端进入消音管，气流经过 延伸壁上小于5毫米的孔喷出，形成人耳听觉范围外的高频声音；另一方面风道内的另一部分气流经风板上的孔喷出，由于风板上孔的出气方向与延伸壁上孔的出气方向交汇，因此由风板上孔喷出的气流使延伸壁上的孔喷出的气流方向发生改变形成空气扰流现象，并在消音管与风道壁之间的腔体内形成扰流区，上述的扰流现象能够进减小噪声等级提高消音管的降噪效果。本技术方案相对现有技术在整体降噪效果上可以降低3-4分贝。
上述为本发明较佳的实施例，但本发明非限定于此。本领域技术人员在不脱离本发明权利要求范围均可做变动和修改，因此本发明以权利要求保护范围为准。

Claims (7)

  1. 一种干湿两用吸尘器，其包括：风道、消音管，所述消音管安装在吸尘风道内，消音管设有开口端和封闭端，封闭端与开口端相对设置，开口端与封闭端之间存在延伸壁，延伸壁上布置孔，风道内气流从开口端进入消音管从所述孔流出，其特征在于：所述的消音管还设置有风板，风板上设置孔，所述风板孔的出气方向与延伸壁上孔的出气方向交汇形成扰流区。
  2. 根据权利要求1所述的一种干湿两用吸尘器，其特征在于：所述的延伸壁上孔的孔径小于或等于5毫米，任意两孔孔心间距l与两孔径d1、d2和满足不等式l≥d1+d2。
  3. 根据权利要求2所述的一种干湿两用吸尘器，其特征在于：所述孔径d1和d2相等。
  4. 根据权利要求2所述的一种干湿两用吸尘器，其特征在于：所述孔径d1和d2不相等。
  5. 根据权利要求1所述的一种干湿两用吸尘器，其特征在于：所述延伸壁与风道周壁之间存在腔体，所述的扰流区位于腔体内。
  6. 根据权利要求1所述的一种干湿两用吸尘器，其特征在于：风道内具有卡槽固定装置，所述的风板插入卡槽中。
  7. 根据权利要求4所述的一种干湿两用吸尘器，其特征在于：所述消音管由开口端到封闭端横截面逐渐减小。
PCT/CN2015/070195 2014-01-10 2015-01-06 一种干湿两用吸尘器 WO2015103966A1 (zh)

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CN110522344B (zh) * 2019-08-29 2023-12-05 孙大亮 一种吸尘器和一种静音组件

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CN108852167A (zh) * 2018-07-24 2018-11-23 追觅科技（天津）有限公司 吸风装置和吸尘器
CN108852167B (zh) * 2018-07-24 2023-10-20 追觅科技(苏州)有限公司 吸风装置和吸尘器

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