WO2015180319A1

WO2015180319A1 - Cyclone separation device, dust collector, surface cleaning device, and cyclone separation method

Info

Publication number: WO2015180319A1
Application number: PCT/CN2014/087056
Authority: WO
Inventors: 顾有为; 牛军营
Original assignee: 江苏美的清洁电器股份有限公司; 美的集团股份有限公司
Priority date: 2014-05-26
Filing date: 2014-09-22
Publication date: 2015-12-03

Abstract

A cyclone separation device (20), a surface cleaning device (100), a dust collector, and a method for separating dust from dust-containing air by using the cyclone separation device (20). The cyclone separation device (20) comprises: a first cyclone (201) having a first longitudinal axis; a plurality of second cyclones (202), located downstream from the first cyclone (201) and arranged in parallel connection in the circumferential direction of the first longitudinal axis, the second cyclones (202) being integrally accommodated in the first cyclone (201); an air intake passage (203), at least partially accommodated in the first cyclone (201); and a guiding passage (204), communicated with the air intake passage (203) and the first cyclone (201), a fluid led in through the air intake passage (203) being tangentially guided into the first cyclone (201) through the guiding passage (204).

Description

Cyclone separation device, vacuum cleaner, surface cleaning device and cyclone separation method

Technical field

The present invention relates to the field of cleaning technology, and in particular to a cyclonic separating apparatus, a vacuum cleaner and surface cleaning apparatus therewith, and a method of separating dust from dusty air by the cyclone separating apparatus.

Background technique

Chinese invention patent ZL01807570.3 discloses an apparatus for separating particles from a fluid stream. Specifically, as shown in FIG. 1, it includes an upstream cyclonic separating apparatus 10' and a plurality of downstream cyclonic separating apparatuses 20' arranged in parallel with each other, each downstream cyclonic separating apparatus 20' extending at least partially into the upstream cyclonic separating The interior of the device 10'. Such equipment for separating particles from a fluid stream typically has a relatively high height, a large footprint, and a low separation efficiency.

Summary of the invention

The present invention aims to solve at least one of the above technical problems in the prior art to some extent.

In view of this, the present invention provides a cyclonic separating apparatus which is simple in assembly, convenient in replacement, and has high separation efficiency.

Further, the present invention is required to provide a vacuum cleaner having the same.

Further, the present invention is required to provide a surface cleaning device having an improved dust collecting space.

Still further, the present invention is required to provide a method of separating dust from dusty air using a cyclone separation apparatus, which has a high separation efficiency.

A cyclonic separating apparatus according to a first aspect of the present invention, comprising: a first cyclone having a first longitudinal axis; a plurality of second cyclones, wherein the plurality of second cyclones are located at the first Downstream of the cyclone and circumferentially arranged in parallel about the first longitudinal axis, wherein the plurality of second cyclones are integrally received within the first cyclone; an intake passage, the intake passage at least partially Included in the first cyclone; and a guide passage that communicates with the intake passage and the first cyclone, respectively, and fluid introduced through the intake passage is guided The passage is directed tangentially into the first cyclone.

According to the cyclonic separating apparatus of the embodiment of the invention, the plurality of second cyclones are integrally housed in the first cyclone, and the height of the cyclonic separating device corresponds to only the height of the first cyclone, whereby the cyclone separating device can be reduced The overall height, thereby reducing the volume of the surface cleaning device.

Further, since the plurality of parallel second cyclones are located in the first cyclones, the primary separation of the fluid can be sufficiently performed by, for example, the height of the entire dust bucket, and the separation efficiency of the dirt can be improved.

Further, the cyclonic separating apparatus according to the above embodiment of the present invention may have the following additional technical features:

According to an embodiment of the invention, the fluid outlet of the guiding channel is arranged between two adjacent said second cyclones.

According to an embodiment of the invention, the portion of the intake passage housed within the first cyclone extends along the first longitudinal axis.

According to an embodiment of the invention, the fluid outlet is configured to tangentially flow the fluid into the first cyclone in a plane perpendicular to the first longitudinal axis.

According to an embodiment of the invention, the projection of the guiding channel in a plane perpendicular to the first longitudinal axis is substantially helical or curved.

According to an embodiment of the invention, at least one of the plurality of second cyclones has a second longitudinal axis parallel to the first longitudinal axis.

A cyclonic separating apparatus according to an embodiment of the present invention further includes: a dust collecting space surrounding the outer circumference of the intake passage, and the dust collecting space is respectively connected to the plurality of second cyclones Passing to collect a plurality of dirt separated by the second cyclone.

According to an embodiment of the invention, the central axis of the dust collecting space coincides with the first longitudinal axis.

A cyclonic separating apparatus according to an embodiment of the present invention further includes: a screen member connected between adjacent ones of the second cyclones, wherein the separated portion is separated by the first cyclone The fluid flows tangentially into the second cyclone through the screen member.

According to an embodiment of the invention, the screen members are each formed integrally with the second cyclone.

According to an embodiment of the invention, a central axis of the screen member coincides with the first longitudinal axis, and a projection area of at least one of the second cyclones in a plane perpendicular to the first longitudinal axis is convex Due to the projected area of the screen member in a plane perpendicular to the first longitudinal axis.

According to an embodiment of the invention, a downward flange is formed below the screen member, the circumferential flange extending into the first cyclone and inclined downward.

According to the surface cleaning apparatus of the second aspect of the present invention, the surface cleaning apparatus may include: a dust bucket having an opening at an upper end thereof, and an air inlet hole in the dust bucket; a cyclone separating device, the cyclone separation The device is disposed in the dust bucket, comprising: a first cyclone, the first cyclone has a first longitudinal axis, and a portion of the first cyclone is constituted by an inner wall of the dust bucket; a plurality of second a cyclone, the plurality of second cyclones being located downstream of the first cyclone and circumferentially arranged in parallel about the first longitudinal axis, wherein the plurality of second cyclones are integrally received in the first a cyclone; an intake passage at least partially received in the first cyclone; and a guide passage connected to the intake passage and the first cyclone, respectively Passing, and fluid introduced through the intake passage is tangentially guided into the first cyclone, wherein the intake passage is in communication with the intake port; And a dust collecting chamber located below the cyclone separating device in the dust bucket to collect dirt in the fluid separated by the cyclonic separating device.

According to the surface cleaning apparatus of the embodiment of the invention, the plurality of second cyclones are integrally housed in the first cyclone, and the height of the cyclone separation device corresponds only to the height of the first cyclone, whereby the cyclone separation device can be reduced The overall height, thereby reducing the volume of the surface cleaning device.

A method for separating dust from dusty air using the cyclone separation device as described above according to the third aspect of the present invention may include the steps of: introducing the dust-containing air into the cyclone separation device through the intake passage; The first separation is performed by tangentially introducing the dust-containing air into the first cyclone; and the dust-containing air separated by the first cyclone is introduced tangentially into the plurality of second cyclones to perform two Secondary separation; and introduction of dust separated from the dust-laden air into a dust collection chamber located below the cyclonic separating apparatus.

According to the third aspect of the present invention, in the method of separating dust from the dust-containing air by the cyclone separation device, the plurality of second cyclones are integrally housed in the first cyclone, whereby the overall height of the cyclone separation device can be fully utilized. The primary separation and secondary separation of the dust-containing air are performed to improve the separation efficiency of the cyclone separation device.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

Figure 1 is a perspective view of a cyclone according to the prior art;

2 is a schematic perspective view of a surface cleaning device according to an embodiment of the present invention;

Figure 3 is a plan view of a surface cleaning apparatus in accordance with one embodiment of the present invention;

4 is a schematic structural view of a surface cleaning device according to an embodiment of the present invention;

Figure 5 is an exploded perspective view of a surface cleaning apparatus in accordance with one embodiment of the present invention;

Figure 6 is a schematic view showing the structure of a surface cleaning device for removing a barrel according to an embodiment of the present invention;

Figure 7 is a schematic structural view of a surface cleaning device according to an embodiment of the present invention, wherein the surface cleaning device is a horizontal vacuum cleaner;

Figure 8 is a schematic view showing the structure of a surface cleaning apparatus having a cyclonic separating apparatus in a method of separating dust from dusty air by means of a cyclone separating apparatus according to an embodiment of the present invention, wherein the surface cleaning apparatus is a horizontal cleaner.

Reference mark:

Surface cleaning device 100;

a first cyclonic separation space A; a second cyclonic separation space B;

Dust bucket 10; intake hole 11; bucket bottom 12; barrel 13; opening 101;

Cyclonic separating device 20; first cyclone 201; second cyclone 202; intake passage 203; guiding passage 204; fluid outlet 2041;

Dust chamber 30;

Dust collection space 40;

Bucket cover 50; through hole 51; blocking piece 52; air guiding member 53; notch 54;

Screen member 60; hole 61;

Circumferential cuff 70;

Separator 91; wind rib 92.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplification of the description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature in the second The sign is directly below and obliquely below, or simply indicates that the first feature level is less than the second feature.

A cyclonic separating apparatus and a surface cleaning apparatus therewith according to an embodiment of the present invention will be described in detail below with reference to Figs. 2-6. 2-6 show a portion of the structure of the surface cleaning apparatus 100. For example, the surface cleaning apparatus 100 may be a vacuum cleaner such as an upright cleaner or a horizontal cleaner. 2-6 illustrate portions of a dust bucket assembly as an upright vacuum cleaner, in accordance with an embodiment of the present invention.

As shown in FIGS. 2 and 3, the surface cleaning apparatus 100 according to an embodiment of the present invention may include a dust bucket 10, a cyclone separating apparatus 20, and a dust collecting chamber 30.

Specifically, the upper end of the dust bucket 10 has an opening 101, and the dust bucket 10 is provided with an air inlet hole 11, and the airflow containing dirt is introduced into the dust bucket 10 from the air inlet hole 11, and then the dirt is completed in the dust bucket 10. Separated from the purification of the gas stream. A tub cover 50 may be disposed at the opening 101, and a through hole 51 may be disposed in the tub cover 50, and the purified airflow may be discharged from the through hole 51. The intake port 11 may be coupled to a suction member (not shown) of the surface cleaning apparatus 100, for example, the suction member may be a ground brush assembly of the cleaner or a suction head of the cleaner.

The cyclone separation device 20 according to an embodiment of the present invention will be described in detail below. As shown in FIGS. 2 and 3, the cyclonic separating apparatus 20 may include a first cyclone 201, a plurality of second cyclones 202, an intake passage 203, and a guide passage 204.

According to an embodiment of the invention, the first cyclone 201 may have a first longitudinal axis, and a portion of the first cyclone 201 may be formed by the inner wall of the dust bucket 10, as shown in FIG. In other words, the first cyclone 201 needs to construct a first cyclonic separating space A suitable for purifying and separating the airflow in the interior of the dust bucket 10 by means of the inner wall of the dust bucket 10, and the first cyclonic separating space A can be used as the cyclone separating device. The primary separation section initially separates the gas stream entering the cyclone separation device 20 to separate large particles or dirt in the gas stream.

As shown in FIG. 2, a plurality of second cyclones 202 are located downstream of the first cyclone 201 and are arranged in parallel circumferentially about the first longitudinal axis, wherein the plurality of second cyclones 202 are integrally received in the first cyclone 201.

The intake passage 203 is at least partially housed within the first cyclone 201 and is spaced apart from the first cyclone. The guiding passages 204 are respectively in communication with the intake passage 203 and the first cyclone 201, and the fluid introduced through the intake passage 203 is tangentially guided into the first cyclone 201, wherein the intake passage 203 and the intake aperture 11 Connected. In other words, one end of the intake passage 203 is in communication with the intake hole 11, and the other end of the intake passage 203 is in communication with one end of the guide passage 204, and the other end of the guide passage 204 is in communication with the first cyclonic separation space A, and is guided by the guide passage 204. The extracted airflow enters the first cyclonic separating space A along a tangential direction in which the purifying separation is achieved in the first cyclonic separating space A.

According to one embodiment of the invention, the dust collection chamber 30 may be located below the cyclonic separating apparatus 20 within the dust bucket 10 to collect dirt in the fluid separated by the cyclonic separating apparatus 20, as shown in FIG. For example, the dust collection chamber 30 can be used to collect dirt separated by the first cyclone 201 and/or the second cyclone 202.

It should be noted that the airflow is introduced into the first cyclonic separation space A by the guiding passage 204, and after the purification separation is completed, The purified airflow enters the plurality of second cyclones 202 for the second purification separation, and is subjected to the second cyclone separation and purification in the second cyclone 202, and then discharged through the through holes 51.

Since the plurality of second cyclones 202 are arranged in parallel circumferentially about the first longitudinal axis, the initially purified airflow may be dispersed and entered into the plurality of second cyclones 202 in parallel, in the plurality of second cyclones 202. The cyclone separation is completed separately.

According to the surface cleaning apparatus 100 of the embodiment of the present invention, the plurality of second cyclones 202 are integrally housed in the first cyclone 201, and the height of the cyclonic separating apparatus 20 corresponds only to the height of the first cyclone 201, thereby The overall height of the cyclonic separating apparatus 20 can be lowered, thereby reducing the volume of the surface cleaning apparatus 100. Further, since the plurality of parallel second cyclones 202 are located in the first cyclone 201, the primary separation of the fluid can be sufficiently performed by, for example, the height of the entire dust bucket, and the separation efficiency of the dirt can be improved.

It can be understood that, according to an embodiment of the present invention, the structure of the intake passage 203 can be integrally formed with the second cyclone 202, whereby the number of components that the surface cleaning device 100 needs to be assembled can be reduced, and the number of mold opening times can be reduced. reduce manufacturing cost.

As shown in FIG. 2 and FIG. 3, according to an embodiment of the present invention, the fluid outlet 2041 of the guiding passage 204 may be disposed between two adjacent second cyclones 202 to facilitate airflow into the first cyclonic separating space. Within A.

As shown in FIGS. 2 and 5, in accordance with an embodiment of the present invention, the portion of the intake passage 203 received within the first cyclone 201 extends along the first longitudinal axis. Thereby, the space inside the first cyclone 201 can be rationally utilized to facilitate the arrangement of the plurality of second cyclones 202.

Further, in accordance with an embodiment of the present invention, the fluid outlet 2041 is configured to tangentially flow fluid into the first cyclone 201 in a plane perpendicular to the first longitudinal axis. In other words, if the direction of the first longitudinal axis is in the up and down direction, the fluid outlet 2041 is configured to be in the horizontal direction, and the airflow enters the first cyclone 201 in the horizontal direction. Thereby, since the airflow enters the first cyclone 201 tangentially, and the fluid outlet 2041 is located between the two adjacent second cyclones 202, the airflow flowing upward from the bottom can be sufficiently separated in the circumferential direction. Then, it enters the second cyclone 202 to perform cyclone separation. In addition, the dirt accommodating space at the bottom of the dust bucket is also significantly increased, and according to the actual use of the dust accommodating volume by the inventors, the volume of the surface cleaning device such as that shown in Fig. 1 is increased by more than 70%.

Further, the projection of the guide channel 204 in a plane perpendicular to the first longitudinal axis is substantially helical or curved. Thereby, it may be convenient to configure the fluid outlet 2041 to introduce the airflow into the first cyclone 201 in a tangential direction. Further, in accordance with an embodiment of the invention, at least one of the plurality of second cyclones 202 has a second longitudinal axis that is parallel to the first longitudinal axis.

As shown in FIG. 2 and FIG. 5-6, according to an embodiment of the present invention, the surface cleaning device 100 further includes a dust collecting space 40 surrounding the outer circumference of the intake passage 203, and the dust collecting space 40 and more Second cyclone 202 points They are connected to collect dirt separated by the plurality of second cyclones 202. The dust collecting space 40 may be formed inside the dust bucket 10 and located in an annular space inside the dust collecting chamber 30. The dust collecting space 40 may be used to collect the dirt separated by the plurality of second cyclones 202 arranged in the circumferential direction. It can be understood that the dust collecting space 40 can be configured by the annular portion integrally formed at the lower portion of the first cyclone 201 and the intake passage 203.

As shown in FIGS. 2 and 6, the surface cleaning apparatus 100 may further include a screen member 60 in accordance with an embodiment of the present invention. The screen members 60 are respectively connected between the adjacent second cyclones 202, wherein the fluid separated by the first cyclone 201 flows tangentially into the second cyclone 202 via the filter member 60, as shown in FIG. Show. The screen member 60 includes a plurality of holes 61 provided corresponding to the inlets of each of the second cyclones 202. Thus, by providing the filter member 60, it is possible to prevent larger dirt from entering the second cyclone 202 directly from the inlet of the second cyclone 202, and passing larger dirt through the first cyclonic separation chamber A. It separates and enters into the dust collecting chamber 30. Further, according to an embodiment of the present invention, the screen member 60 may be integrally formed with the second cyclone 202, thereby reducing the number of mold opening and assembly costs.

As shown in FIG. 2, in accordance with an embodiment of the present invention, the central axis of the screen member 60 coincides with the first longitudinal axis, and the projection area of the at least one second cyclone 202 in a plane perpendicular to the first longitudinal axis is convex. Due to the projected area of the screen member 60 in a plane perpendicular to the first longitudinal axis. In other words, the screen member 60 connected between the two second cyclones 202 may have a circular arc shape, and the outer end of the screen member 60 is located within the outer ends of the adjacent two second cyclones 202.

As shown in Figures 4-6, in accordance with an embodiment of the present invention, a screen flange 60 is formed below the screen member 60, and the circumferential flange 70 extends into the first cyclone 201 and slopes downward. Thereby, the circumferential flange 70 can prevent the dirt separated by the first cyclone 201 from floating up. According to an embodiment of the invention, at least one of the plurality of second cyclones 202 has a second longitudinal axis that is parallel to the first longitudinal axis. In other words, the plurality of second cyclones 202 and the first cyclonic separating means may be arranged in parallel with each other, thereby facilitating the improvement of the separation efficiency of the cyclonic separating apparatus 20.

As shown in FIGS. 4-6, according to an embodiment of the present invention, the dust bucket 10 may include a tub bottom 12 and a tub body 13. Specifically, the intake hole 11 is provided at a central position of the tub bottom 12 of the dust bucket 10 and the intake passage 203 is connected to the intake hole 11. The tub body 13 is detachably coupled to the tub bottom 12. Thereby, the dust drum 10 can be easily disassembled and assembled, which is more convenient to use.

As shown in FIGS. 5-6, the surface cleaning apparatus 100 may further include a tub cover 50, in accordance with an embodiment of the present invention. A bucket cover 50 is disposed at an upper end of the dust bucket 10 to close the opening 101. The bucket cover 50 is provided with a through hole 51 communicating with the plurality of second cyclones 202, for example, communicating with an air outlet of the second cyclone 202. The fluid separated by the second cyclone 202 is discharged. Further, in accordance with an embodiment of the present invention, the aperture 50 is provided with a baffle 52 that is parallel to the first longitudinal axis. Therefore, the blocking piece 52 can play a certain guiding role, and guide the airflow blown out from the outlet of the second cyclone 202 to be discharged upward, so that the purified airflow is more stably discharged.

As shown in FIG. 5 and FIG. 6, according to an embodiment of the present invention, the side of the lid 50 facing the opening 101 is formed. There is a wind guiding member 53, and the air guiding member 53 is buckled on the second cyclone 202 toward the notch 54 of the tub cover 50, and forms an air inlet of the second cyclone 202. The air guiding member 53 is buckled on the second cyclone 202, and the cyclone separating device 20 can be positioned in the dust bucket by the snap relationship between the air guiding member 53 on the tub cover 50 and the notch 54 of the second cyclone 202. Within 10, the stability of the surface cleaning apparatus 100 during use can be improved.

As shown in Figure 6, in accordance with one embodiment of the present invention, a plurality of dividers 91 are formed on the bottom 12 of the tub, the dividers 91 extending radially toward the first longitudinal axis along a plane passing through the first longitudinal axis. In other words, the dividers 91 are each located in a plane that passes through the first longitudinal axis. Thereby, the partition piece 91 can divide the bottom of the dust bucket 10 into a plurality of spaced spaces, and it is possible to prevent the swirling flow from being generated at the bottom of the dust bucket 10, so that the dirt is confined in the several spaced spaces. Further, a windward rib 92 is formed on an inner side wall portion of the tub 13 adjacent to the tub bottom 12, the wind rib 92 being radially oriented toward the first longitudinal axis along a plane passing through the first longitudinal axis Extending and thereby, it is possible to further avoid the generation of a swirl at the bottom of the dust bucket 10.

The operation of the surface cleaning apparatus 100 according to an embodiment of the present invention will be briefly described below with reference to the accompanying drawings, in which the direction of the arrow indicates the direction of the air flow.

As shown in FIG. 2 and FIG. 3, the airflow sucked by the surface cleaning device 100 first enters the intake passage 203 through the intake hole 11, and enters the inside of the first cyclonic separation space A by the guide passage 204, in the first cyclone. After the inner side of the separation space A completes the first purification separation of the airflow, the airflow travels up to the screen member 60, and the airflow passes through the filter member 60 to enter the plurality of second cyclones 202 in a tangential direction, in the plurality of cyclones After evolution separation in 202, it is discharged through the through hole 51 in the lid 50. The dirt separated by the first cyclone 201 is stored in the dust collecting chamber 30, and the dirt separated by the second cyclone 202 is stored in the dust collecting space 40.

As shown in Figures 2-6, the cyclonic separating apparatus 20 according to an embodiment of the present invention may be the cyclonic separating apparatus of the surface cleaning apparatus of the above embodiment.

The cyclonic separating structure contemplated by the cyclonic separating apparatus 20 will be further described in detail below from the spatial arrangement angle with reference to Figs. As shown in FIGS. 2 and 3, the cyclonic separating apparatus 20 according to an embodiment of the present invention may include a first cyclonic separating space A, a plurality of second cyclonic separating spaces B, an intake passage 203, and a guiding passage 204.

Specifically, the first cyclonic separation space A has a first longitudinal axis. A plurality of second cyclonic separating spaces B are located downstream of the first cyclonic separating space A and circumferentially arranged in parallel about the first longitudinal axis, wherein the plurality of second cyclonic separating spaces B are integrally housed in the first cyclonic separating space A. The intake passage 203 is at least partially housed in the first cyclonic separating space A. The guide passage 204 communicates the intake passage 203 with the first cyclonic separation space A, and guides the fluid introduced through the intake passage 203 tangentially into the first cyclonic separation space A.

According to the cyclonic separating apparatus 20 of the embodiment of the present invention, the plurality of second cyclonic separating spaces B are entirely accommodated in the first cyclonic space A, and the height of the cyclonic separating apparatus 20 corresponds only to the height of the first cyclonic separating space A, Thereby, the overall height of the cyclone separation device 20 can be reduced, thereby reducing the volume of the surface cleaning device. In addition, due to the multiple parallel The second cyclonic separation space B is located in the first cyclone 201, so that the primary separation of the fluid can be sufficiently performed by, for example, the height of the entire dust bucket 10, and the separation efficiency of the dirt can be improved.

The plurality of second cyclonic separating spaces B are entirely accommodated in the first cyclonic separating space A, and the height of the cyclonic separating device 20 is only related to the height of the first cyclonic separating space A, whereby the overall height of the cyclonic separating device 20 can be reduced. The volume of the surface cleaning device 100 is reduced. At the same time, since the second cyclonic separation space B is located inside the first cyclonic separation space A, the height of the second cyclonic separation space can be increased, so that the cyclone separation device 20 has higher separation efficiency. The working efficiency of the surface cleaning device 100 is improved.

As shown in FIG. 2 and FIG. 3, according to an embodiment of the present invention, the fluid outlet 2041 of the guiding passage 204 is disposed between two adjacent second cyclonic separating spaces B to facilitate airflow into the first cyclonic separating space. Within A.

As shown in Figures 2 and 5, in accordance with an embodiment of the present invention, the intake passage 203 extends at least partially along the first longitudinal axis. Thereby, the space inside the first cyclone 201 can be rationally utilized to facilitate the arrangement of the plurality of second cyclones 202. Further, in accordance with an embodiment of the present invention, the projection of the guide channel 204 in a plane perpendicular to the first longitudinal axis is generally helical or curved. Thereby, it may be convenient to configure the fluid outlet 2041 to introduce the airflow into the first cyclonic separating space A in the tangential direction. Further, in accordance with an embodiment of the present invention, at least one of the plurality of second cyclonic separating spaces B has a second longitudinal axis that is parallel to the first longitudinal axis.

As shown in FIG. 2 and FIG. 6, according to an embodiment of the present invention, a screen member 60 is connected between the adjacent second cyclonic separating spaces B, wherein the fluid separated by the first cyclonic separating space A passes through the filter. The member 60 flows tangentially into the second cyclone space B. The screen member 60 includes a plurality of holes 61 provided corresponding to the inlets of each of the second cyclonic separating spaces B. Thereby, by providing the filter member 60, it is possible to prevent large dirt from directly entering the second cyclonic separating space B, and separating the larger dirt into the dust collecting chamber by being separated in the first cyclonic separating chamber A. 30 inside.

As shown in Figure 2, in accordance with an embodiment of the present invention, the central axis of the screen member 60 coincides with the first longitudinal axis and the projected area of the at least one second cyclonic separation space B in a plane perpendicular to the first longitudinal axis Projecting from the projection area of the screen member 60 in a plane perpendicular to the first longitudinal axis. In other words, the screen member 60 connected between the two second cyclonic separating spaces B may have a circular arc shape, and the outer end of the screen member 60 is located at the outer end of the adjacent two second cyclonic separating spaces B. Inside.

As shown in Fig. 7, according to an embodiment of the present invention, the surface cleaning device 100 is a horizontal cleaner, and the arrow shows the traveling path of the airflow. As the air pressure in the vacuum generating portion 300 gradually decreases, the airflow is advanced. After the air hole 11 is sucked, the airflow passes through the intake passage 203, enters the first cyclonic separating space A for the first cyclonic separation, and the separated airflow enters the second cyclonic separating space B for the second cyclonic separation. The airflow separated by the second cyclone enters the vacuum generating portion 300 and is discharged.

As shown in FIG. 8, in the method of separating dust from dusty air by the above-described cyclone separation apparatus according to an embodiment of the present invention, the above-described cyclone separation apparatus further has a separation step of passing dusty air through Intake The channel is introduced into the cyclone separation device (S100); the first separation is introduced by the tangential introduction of the dust-containing air into the first cyclone (S200); and the dust-containing air separated by the first cyclone is introduced tangentially into the plurality of second cyclones And performing secondary separation (S300); and introducing dust separated from the dust-containing air into a dust collecting chamber located below the cyclone separation device (S400).

It should be noted that the airflow is introduced into the first cyclonic separating space A by the guiding passage 204. After the purifying and separating is completed, the purified airflow enters the plurality of second cyclones 202 for the second purifying and separating. In the second cyclone 202 After the second cyclone separation and purification, it is discharged through the through hole 51.

According to the embodiment of the present invention, the method of separating dust from the dust-containing air by the cyclone separation device, the plurality of second cyclones are integrally housed in the first cyclone, whereby the overall height of the cyclone separation device can be fully utilized, The primary separation and secondary separation of the dust-containing air are performed to improve the separation efficiency of the cyclone separation device.

It should be noted that in the above embodiments of the present invention, "air flow" and "fluid" can be understood to be the same, for example, a subject containing dirt to be separated from the object to be cleaned. At the same time, "fluid" can be understood broadly. In some embodiments, a "fluid" can include an air stream. In some embodiments, "fluid" can include other flowables, such as liquids or the like.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Further, various embodiments or examples described in this specification can be joined and combined by those skilled in the art.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A cyclone separation device, comprising:

a first cyclone having a first longitudinal axis;

a plurality of second cyclones, the plurality of second cyclones being located downstream of the first cyclone and arranged circumferentially in parallel about the first longitudinal axis, wherein the plurality of second cyclones are integrally received In the first cyclone;

An intake passage, the intake passage being at least partially received within the first cyclone;

a guiding passage that communicates with the intake passage and the first cyclone, respectively, and fluid introduced through the intake passage is tangentially guided to the first cyclone by the guiding passage Inside.
The cyclonic separating apparatus according to claim 1, wherein a fluid outlet of said guiding passage is disposed between two adjacent said second cyclones.
The cyclonic separating apparatus according to claim 1 or 2, wherein a portion of the intake passage accommodated in the first cyclone extends along the first longitudinal axis.
The cyclonic separating apparatus of claim 2 wherein said fluid outlet is configured to tangentially flow said fluid into said first cyclone in a plane perpendicular to said first longitudinal axis.
The cyclonic separating apparatus according to any one of claims 1 to 4, wherein the projection of the guiding passage in a plane perpendicular to the first longitudinal axis is substantially spiral or curved.
The cyclonic separating apparatus according to any one of claims 1 to 5, wherein at least one of the plurality of second cyclones has a second longitudinal axis parallel to the first longitudinal axis.
The cyclone separating apparatus according to claim 3, further comprising: a dust collecting space surrounding the outer circumference of the intake passage, and the dust collecting space and the plurality of second The cyclones are respectively connected to collect a plurality of dirt separated by the second cyclones.
The cyclonic separating apparatus according to claim 7, wherein a center axis of the dust collecting space coincides with the first longitudinal axis.
The cyclone separation apparatus according to claim 2, further comprising:

a screen member respectively connected between adjacent ones of the second cyclones, wherein the fluid separated by the first cyclones flows tangentially through the screen member Inside the second cyclone.
The cyclone separation apparatus according to claim 9, wherein said screen members are integrally formed with said second cyclones.
The cyclonic separating apparatus according to claim 10, wherein a center axis of said screen member coincides with said first longitudinal axis, and at least one of said second cyclones is perpendicular to said first longitudinal axis The projected area within the plane protrudes from the projected area of the screen member in a plane perpendicular to the first longitudinal axis.
The cyclonic separating apparatus according to claim 10, wherein a circumferential flange is formed below the screen member, the circumferential flange extending into the first cyclone and inclined downward.
A vacuum cleaner comprising the cyclone separation apparatus according to any one of claims 1-12.
A surface cleaning device, comprising:

a dust bucket, an upper end of the dust bucket has an opening, and the dust bucket is provided with an air inlet hole;

a cyclone separation device, the cyclone separation device being disposed in the dust bucket, comprising:

a first cyclone having a first longitudinal axis, and a portion of the first cyclone being constituted by an inner wall of the dust bucket;

a plurality of second cyclones, the plurality of second cyclones being located downstream of the first cyclone and arranged circumferentially in parallel about the first longitudinal axis, wherein the plurality of second cyclones are integrally received In the first cyclone;

An intake passage, the intake passage being at least partially received within the first cyclone;

a guiding passage that communicates with the intake passage and the first cyclone, respectively, and fluid introduced through the intake passage is tangentially guided into the first cyclone, wherein The intake passage is in communication with the intake port;

a dust collection chamber located below the cyclone separation device in the dust bucket to collect dirt in the fluid separated by the cyclone separation device.
A surface cleaning apparatus according to claim 14, wherein a fluid outlet of said guide passage is disposed between two adjacent said second cyclones.
A surface cleaning apparatus according to claim 14, wherein a portion of said intake passage housed in said first cyclone extends along said first longitudinal axis.
The surface cleaning apparatus of claim 15 wherein said fluid outlet is configured to tangentially flow said fluid into said first cyclone in a plane perpendicular to said first longitudinal axis.
The surface cleaning apparatus according to claim 14, wherein the projection of the guide passage in a plane perpendicular to the first longitudinal axis is substantially spiral or curved.
The surface cleaning apparatus of claim 16 wherein at least one of said plurality of second cyclones has a second longitudinal axis that is parallel to said first longitudinal axis.
The surface cleaning apparatus according to claim 14, further comprising a dust collecting space surrounding the outer circumference of the intake passage, and the dust collecting space and the plurality of second cyclones The devices are respectively connected to collect the dirt separated by the plurality of second cyclones.
The surface cleaning apparatus according to claim 14, further comprising:

a screen member respectively connected between adjacent ones of the second cyclones, wherein the fluid separated by the first cyclones flows tangentially through the screen member Inside the second cyclone.
A surface cleaning apparatus according to claim 21, wherein said screen members are integrally formed with said second cyclones.
A surface cleaning apparatus according to claim 22, wherein a center axis of said screen member coincides with said first longitudinal axis, and at least one of said second cyclones is perpendicular to said first longitudinal axis The projected area within the plane protrudes from the projected area of the screen member in a plane perpendicular to the first longitudinal axis.
The surface cleaning apparatus according to claim 21, wherein a circumferential flange is formed below the screen member, the circumferential flange extending into the first cyclone and inclined downward.
The surface cleaning apparatus according to claim 14, wherein the dust bucket comprises:

a bottom of the tub, the air inlet hole is disposed at a central position of the bottom of the tub of the dust bucket, and the air inlet passage is connected to the air inlet hole;

a barrel body detachably coupled to the bottom of the tub.
The surface cleaning apparatus according to claim 25, further comprising:

a bucket cover, the bucket cover is disposed at an upper end of the dust bucket to close the opening, and the bucket cover is provided with a through hole communicating with the plurality of second cyclones to discharge through the second The fluid after separation of the cyclone.
A surface cleaning apparatus according to claim 26, wherein said through hole is provided with a flap, said flap being parallel to said first longitudinal axis.
The surface cleaning device according to claim 26, wherein a wind guiding member is respectively formed on a side of the tub cover facing the opening, and the air guiding members are respectively hooked on the second cyclone And facing the gap of the tub cover and forming an air inlet of the second cyclone.
A surface cleaning apparatus according to claim 25, wherein a plurality of partition sheets are formed on the bottom of the tub, the partition sheets being radially oriented toward the first along a plane passing through the first longitudinal axis The longitudinal axis extends.
A surface cleaning apparatus according to claim 29, wherein a disturbing rib is formed on an inner side wall portion of said tub adjacent to said tub bottom, said scramble fin being along said passage The plane of the first longitudinal axis extends radially toward the first longitudinal axis and corresponds to the position of the divider, respectively.
A cyclone separation device, comprising:

a first cyclonic separation space, the first cyclonic separation space having a first longitudinal axis;

a plurality of second cyclonic separating spaces, the plurality of second cyclonic separating spaces being located downstream of the first cyclonic separating space and circumferentially disposed in parallel about the first longitudinal axis, wherein the plurality of second cyclonic separating spaces Wholely housed in the first cyclonic separation space;

An intake passage, the intake passage being at least partially received in the first cyclonic separation space;

A guide passage that communicates the intake passage and the first cyclonic separation space and tangentially directs fluid introduced through the intake passage into the first cyclonic separation space.
The cyclonic separating apparatus according to claim 31, wherein a fluid outlet of said guiding passage is disposed between two adjacent said second cyclonic separating spaces, and said fluid outlet is configured to move said fluid A tangential flow into the first cyclonic separation space in a plane perpendicular to the first longitudinal axis.
A cyclonic separating apparatus according to claim 31 wherein said inlet passage extends at least partially along said first longitudinal axis.
The cyclonic separating apparatus according to claim 31, wherein the projection of the guiding passage in a plane perpendicular to the first longitudinal axis is substantially spiral or curved.
A cyclonic separating apparatus according to claim 31 wherein at least one of said plurality of second cyclonic spaces has a second longitudinal axis that is parallel to said first longitudinal axis.
A cyclone separating apparatus according to claim 31, wherein a screen member is connected between adjacent second cyclonic separating spaces, wherein said fluid separated by said first cyclonic separating space passes through said filter The mesh member flows tangentially into the second cyclonic space.
The cyclonic separating apparatus according to claim 34, wherein a central axis of said screen member coincides with said first longitudinal axis, and at least one of said second cyclonic separating spaces is perpendicular to said first longitudinal direction The projected area in the plane of the axis protrudes from the projected area of the screen member in a plane perpendicular to the first longitudinal axis.
A vacuum cleaner comprising the cyclone separation apparatus according to any one of claims 31-37.
A method of separating dust from dusty air using a cyclonic separating apparatus according to any of claims 1-14, the method comprising the steps of:

Introducing the dust-laden air into the cyclone separation device through the intake passage;

Introducing the first cyclone through the tangential introduction of dusty air for initial separation;

And introducing the dust-containing air separated by the first cyclone into the plurality of second cyclones tangentially for secondary separation;

Dust separated from the dust-laden air is introduced into a dust collecting chamber located below the cyclone separation device.
The method of claim 39 wherein said dust-laden air enters said first cyclone through a fluid outlet of said pilot passage disposed between two adjacent said second cyclones.