WO2022120514A1 - Structure de dépoussiérage à cyclone et aspirateur - Google Patents

Structure de dépoussiérage à cyclone et aspirateur Download PDF

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Publication number
WO2022120514A1
WO2022120514A1 PCT/CN2020/134206 CN2020134206W WO2022120514A1 WO 2022120514 A1 WO2022120514 A1 WO 2022120514A1 CN 2020134206 W CN2020134206 W CN 2020134206W WO 2022120514 A1 WO2022120514 A1 WO 2022120514A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner cylinder
cylinder
cyclone
cavity
dust
Prior art date
Application number
PCT/CN2020/134206
Other languages
English (en)
Chinese (zh)
Inventor
张学东
Original Assignee
广东智意机器人科技有限公司
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 广东智意机器人科技有限公司 filed Critical 广东智意机器人科技有限公司
Priority to US17/267,295 priority Critical patent/US20220280001A1/en
Priority to DE212020000439.0U priority patent/DE212020000439U1/de
Priority to PCT/CN2020/134206 priority patent/WO2022120514A1/fr
Publication of WO2022120514A1 publication Critical patent/WO2022120514A1/fr

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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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1608—Cyclonic chamber constructions
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1658—Construction of outlets
    • A47L9/1666—Construction of outlets with filtering means
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1683—Dust collecting chambers; Dust collecting receptacles

Definitions

  • the present application relates to the technical field of dust removal, in particular to a cyclone dust removal structure and a vacuum cleaner.
  • the dust collector generally uses the high-speed rotation of the motor to generate negative air pressure in the sealed casing to absorb dust.
  • One of the purposes of the embodiments of the present application is to provide a cyclone dust removal structure and a vacuum cleaner, aiming at solving the problems of easy blockage and short service life of the filter.
  • a cyclone dust removal structure comprising an outer cylinder, a first inner cylinder disposed inside the outer cylinder, a second inner cylinder disposed inside the first inner cylinder, and a second inner cylinder disposed inside the first inner cylinder.
  • first-level cyclone cavity There is a first-level cyclone cavity, a second-level cyclone cavity is formed between the first inner cylinder and the second inner cylinder, the cyclone cylinder has a cyclone cavity, and the second inner cylinder and the third inner cylinder have a cyclone cavity.
  • a third-stage cyclone cavity is formed inside together, the outer cylinder is provided with a first-stage air inlet that communicates with the first-stage cyclone cavity, and the first inner cylinder has a connection between the first-stage cyclone cavity and the second-stage cyclone cavity.
  • the secondary air inlet is connected between the swirl cavity and the secondary cyclone cavity through the secondary air outlet, and the swirl cavity and the tertiary cyclone cavity are communicated through the tertiary air inlet.
  • the outer cylinder includes an outer peripheral portion and a base portion connected to one end of the outer peripheral portion, a dust collecting cylinder is sleeved on the outer periphery of the third inner cylinder, and the dust collecting cylinder is far away from the One end of the second inner cylinder is connected to the base part, the dust collecting cylinder, the base part and the outer circumferential part form a first-level dust collecting cavity, the dust collecting cylinder, the third inner cylinder and the The base portion forms a three-stage dust collecting chamber.
  • an end of the third inner cylinder away from the second inner cylinder is provided with a dust baffle, and the third inner cylinder is provided with a third-stage dust collecting chamber close to the dust baffle. Connected dust outlet.
  • the first inner cylinder includes a plurality of grids in an annular array, and an air inlet gap is formed between two adjacent grids, and a plurality of the air inlet gaps constitute the secondary inlet. tuyere.
  • the swirling cylinder includes a swirling circumferential portion, an air guide portion disposed on the swirling circumferential portion, and a swirling bottom portion, and the swirling bottom portion is connected to one end of the swirling circumferential portion close to the first inner cylinder , the secondary air outlet is provided on the bottom of the swing.
  • annular protrusion is formed radially extending from one end of the second inner cylinder close to the third inner cylinder, the first inner cylinder, the second inner cylinder, and the annular protrusion
  • the secondary cyclone cavity is formed by enclosing the cyclone bottom and the swirling bottom.
  • a positioning hole is formed on the annular protrusion, and the first inner cylinder has a positioning column inserted into the positioning hole.
  • the air guide portion includes a plurality of circumferentially arranged expanding vanes, and the expanding vanes are used to make the airflow flow from the edge of the convoluted circumferential portion to the center of the convoluted circumferential portion.
  • the swirling cylinder further includes a central support portion, and both ends of the gradually expanding vanes are respectively connected to the inner wall of the swirling circumferential portion and the central supporting portion.
  • the central support portion includes a circular ring portion and an inner guide cylinder formed by an inner ring of the circular ring portion extending axially toward the third-stage cyclone cavity, and the expanding blade is connected to the
  • the annular portion is arranged on the outer circumference of the inner guide cylinder.
  • the first inner cylinder and the gyratory cylinder are integrally formed.
  • the second inner cylinder and the third inner cylinder together form a conical cylinder, and the bottom end of the conical cylinder is disposed close to the swirling cavity.
  • a vacuum cleaner which includes the above-mentioned cyclone dust removal structure, and further includes a motor for generating airflow, a filter provided at one end of the cyclone away from the third inner cylinder, and a filter for cleaning the ground. Tip assembly.
  • the tip assembly has a side brush for cleaning dead spots.
  • the cyclone dust removal structure includes an outer cylinder, a first inner cylinder, a second inner cylinder, a gyratory cylinder and a third inner cylinder.
  • a first-stage cyclone cavity is formed between the cylinders
  • a second-stage cyclone cavity is formed between the first inner cylinder and the second inner cylinder
  • a third-stage cyclone cavity is formed inside the second inner cylinder and the third inner cylinder, and part of the dust settles in one.
  • the air after the first settling passes through the first inner cylinder and enters the secondary cyclone cavity, part of the dust settles at the bottom of the secondary cyclone cavity, and the air after the second settling passes through the secondary cyclone cavity.
  • the air outlet enters the cyclone cavity, and through the diversion of the cyclone cavity, the air enters the third-stage cyclone cavity of the third inner cylinder for the third settling.
  • the use of this cyclone dust removal structure can carry out three times of dust settlement, which greatly reduces the amount of dust entering the filter, and the filter is set at the cyclone, which is far away from the third-stage dust collection chamber, and the dust is not easily affected by airflow. Affect the entry filter, which can prolong the life of the filter.
  • the beneficial effect of the vacuum cleaner provided by the embodiment of the present application is that: the above-mentioned cyclone dust removal structure is adopted, and the cyclone dust removal structure has a first-level cyclone cavity, a second-level cyclone cavity and a third-level cyclone cavity, which can clean the inhaled dirty air three times. Settling greatly reduces the amount of dust entering the filter, and the filter is set at the cyclone, which is far away from the third-stage dust collection chamber, and the dust is not easily affected by the air flow into the filter, which can prolong the filter life. Service life, reducing the frequency of filter replacement in the vacuum cleaner.
  • the suction head assembly of the vacuum cleaner is provided with a side brush, and the side brush can clean sanitary dead corners such as wall corners, and can improve the cleaning strength of the vacuum cleaner.
  • FIG. 1 is a three-dimensional structural diagram 1 of a cyclone dust removal structure provided by an embodiment of the present application (partial section of the casing);
  • FIG. 2 is a three-dimensional structural diagram of a cyclone dust removal structure provided by an embodiment of the present application (the outer casing is removed);
  • FIG. 3 is a cross-sectional view of a cyclone dust removal structure provided by an embodiment of the present application.
  • FIG. 4 is a three-dimensional structural diagram of a secondary cyclone cavity provided by an embodiment of the present application.
  • FIG. 5 is a three-dimensional structural diagram of a cyclone dust removal structure provided by an embodiment of the present application.
  • FIG. 6 is a cross-sectional structural schematic diagram of a cyclone dust removal structure provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a transverse section and a longitudinal section of a cyclone dust removal structure provided in an embodiment of the present application;
  • FIG. 8 is a perspective structural view of a first inner cylinder and a gyratory cylinder provided by an embodiment of the present application;
  • FIG. 9 is a three-dimensional structural diagram of a second inner cylinder, a third inner cylinder and a dust collecting cylinder provided by an embodiment of the present application.
  • FIG. 10 is a cross-sectional view of a second inner cylinder, a third inner cylinder and a dust collecting cylinder provided by an embodiment of the present application;
  • FIG. 11 is a three-dimensional structural diagram of a vacuum cleaner provided in an embodiment of the present application.
  • Fig. 12 is a front view of the suction head assembly provided by the embodiment of the present application.
  • 1-cyclone dust removal structure 11-outer cylinder; 111-outer circumference; 112-base part; 12-first inner cylinder; 121-grid; 1211-positioning column; 13-second inner cylinder; 1311-positioning hole; 14-third inner cylinder; 141-dust baffle; 143-connecting rib; 15-gyratory cylinder; 1501-gyratory cavity; Wind part; 1531-expanding blade; 154-center support part; 1541-ring part; 1542-inner guide cylinder; 1543-reinforcing rib; 16-dust collecting cylinder; 2-filter; 3-suction head assembly; 31 - Tip Housing; 32 - Side Brush; 321 - Hub; 322 - Bristles.
  • the cyclone dust removal structure 1 includes an outer cylinder 11 , a first inner cylinder 12 , a second inner cylinder 13 , a third inner cylinder 14 and a gyratory cylinder 15 .
  • An inner cylinder 12 is arranged inside the outer cylinder 11
  • a second inner cylinder 13 is arranged inside the first inner cylinder 12
  • a third inner cylinder 14 and a gyratory cylinder 15 are respectively arranged at both ends of the second inner cylinder 13, and the gyratory cylinder
  • One end of 15 away from the second inner cylinder 13 is used for connecting with the filter 2 .
  • a primary cyclone cavity 101 is formed between the outer cylinder 11 and the first inner cylinder 12
  • a secondary cyclone cavity 201 is formed between the first inner cylinder 12 and the second inner cylinder 13
  • the cyclone 15 has a cyclone cavity 1501
  • the second inner cylinder 15 has a cyclone cavity 1501 .
  • the interior of the inner cylinder 13 and the interior of the third inner cylinder 14 together form a three-stage cyclone cavity 301 .
  • the outer cylinder 11 is provided with a primary air inlet 103, so that the suctioned air enters the cyclone dust removal structure 1.
  • the first inner cylinder 12 is provided with a secondary air inlet 202, and the secondary air inlet 202 is connected to the primary cyclone cavity 101 and the cyclone dust removal structure 1.
  • the secondary cyclone cavity 201, the secondary cyclone cavity 201 and the cyclone cavity 1501 are connected through the secondary air outlet 203, the cyclone cavity 1501 and the tertiary cyclone cavity 301 are communicated through the secondary air outlet 203, and the cyclone cavity 1501 and the third stage
  • the cyclone chambers 301 communicate with each other through the three-stage air inlet 303 .
  • the splines in Figure 1 represent airflow
  • the spirals in Figure 2 represent airflow.
  • the sucked dirty air enters the interior of the primary cyclone chamber 101 through the primary air inlet 103 of the outer cylinder 11. Since the outer cylinder 11 and the first inner cylinder 12 are both cylindrical, the primary cyclone chamber 101 It is circular, and a rotating airflow is formed in the first-stage cyclone cavity 101. The first settling is performed in the first-stage cyclone cavity 101, and the airflow after the first-stage settling passes through the second-stage air inlet of the first inner cylinder 12. 202 enters the secondary cyclone cavity 201.
  • first inner cylinder 12 and the second inner cylinder 13 are both cylindrical, a swirling airflow is formed in the secondary cyclone cavity 201, and the second sedimentation is carried out in the secondary cyclone cavity 201.
  • the air flow after the secondary sedimentation enters the cyclone cavity 1501 through the secondary air outlet 203, and is guided by the cyclone cavity 1501.
  • the swirling airflow after the third sedimentation enters the filter 2 through the swirling cavity 1501 .
  • the dirty airflow passes through three times of dust settlement, removing as much dust in the air as possible and slowing down the clogging of the filter 2; in addition, the setting of the cyclone 15 can not only form a cyclone airflow , so that the airflow enters the tertiary cyclone cavity 301 in a swirling shape, and also makes it difficult for the dust in the secondary cyclone cavity 201 to enter the tertiary cyclone cavity 301 .
  • the setting of the swirl chamber 1501 enables the third-stage dust collecting chamber 302 to have sufficient height space, so that the airflow for the third settling has a sufficient settling height, which can be fully settled, and then Then enter the filter 2 through the whirl chamber 1501 to further reduce the dust entering the filter 2 .
  • the cyclone dust removal structure 1 in the above embodiment includes an outer cylinder 11, a first inner cylinder 12, a second inner cylinder 13, a gyratory cylinder 15 and a third inner cylinder 14.
  • a first-stage cyclone cavity 101 is formed between 12
  • a second-stage cyclone cavity 201 is formed between the first inner cylinder 12 and the second inner cylinder 13
  • a third-stage cyclone cavity 301 is formed inside the second inner cylinder 13 and the third inner cylinder 14.
  • the air after the first settling passes through the first inner cylinder 12 and enters the secondary cyclone cavity 201, and part of the dust settles at the bottom of the secondary cyclone cavity 201,
  • the air after the second settling passes through the secondary air outlet 203 and enters the cyclone cavity 1501, and through the diversion of the cyclone cavity 1501, the air enters the tertiary cyclone cavity 301 of the third inner cylinder 14 for the third settling.
  • Using the cyclone dust removal structure 1 can carry out three times of dust settlement, which greatly reduces the amount of dust entering the filter 2, and the filter 2 is set at the cyclone 15, which is far from the third-stage dust collection chamber 302, and the dust The chips are not easily affected by the airflow and enter the filter 2 , which can prolong the service life of the filter 2 .
  • the outer cylinder 11 includes an outer circumferential portion 111 and a base portion 112 , the outer circumferential portion 111 is cylindrical, and the base portion 112 is connected to the bottom of the outer circumferential portion 111 .
  • the outer circumference of the third inner cylinder 14 is sleeved with a dust collecting cylinder 16, the end of the dust collecting cylinder 16 away from the second inner cylinder 13 is connected to the base part 112, and the dust collecting cylinder 16 connects the outer peripheral part 111 and the third inner cylinder 14.
  • the space in between is divided into two areas.
  • the dust collecting cylinder 16 , the base portion 112 and the outer circumferential portion 111 are enclosed to form a primary dust collecting chamber 102 .
  • the primary dust collecting chamber 102 is located at the bottom of the primary cyclone chamber 101 .
  • the cyclone chamber 101 is communicated; the dust collecting cylinder 16, the third inner cylinder 14 and the base portion 112 form a third-stage dust collecting chamber 302, and the third-stage dust collecting chamber 302 is communicated with the third-stage cyclone chamber 301 through the dust outlet 304, and the third-stage dust collecting chamber 302 is relatively separated from the third-stage cyclone chamber 301 , so that the dust in the third-stage dust collecting chamber 302 is not easy to flow reversely into the filter 2 .
  • one side of the outer circumferential portion 111 is rotatably connected with the base portion 112, and the other side of the outer circumferential portion 111 is snap-connected with the base portion 112, so that the base portion 112 can be rotated and opened relative to the outer circumferential portion 111, which is convenient for cleaning.
  • Dust inside the primary dust chamber 102 and the tertiary dust chamber 302 When it is necessary to clean the dust inside the first-stage dust collecting chamber 102 and the third-stage dust collecting chamber 302, release the buckle connecting the outer circumferential portion 111 and the base portion 112, and then rotate the base portion 112 relative to the outer circumferential portion 111, and then reverse the Just get out the dust.
  • the joint surface between the outer circumferential portion 111 and the base portion 112 is provided with a sealing ring to prevent dust from leaking out of the base portion 112 .
  • the end of the third inner cylinder 14 away from the second inner cylinder 13 has a dust baffle 141 , and the third inner cylinder 14 is provided with a dust outlet 304 near the dust baffle 141 , so that the The dust in the third-stage cyclone chamber 301 enters the third-stage dust collecting chamber 302 through the dust outlet 304 .
  • the bottom of the third inner cylinder 14 has a dust baffle 141, and the side wall of the third inner cylinder 14 close to the bottom is provided with a dust outlet 304, so that the dust in the tertiary cyclone chamber 301 enters the tertiary collector through the dust outlet 304. in the dust chamber 302 .
  • the number of dust outlets 304 is not limited here. When the number of dust outlets 304 is multiple, the multiple dust outlets 304 are evenly arranged in the circumferential direction, so that dust can enter the tertiary dust collection chamber 302 from all directions. Correspondingly, a connecting rib 143 connecting the third inner cylinder 14 and the dust blocking plate 141 is formed between two adjacent dust outlets 304 .
  • the first inner cylinder 12 includes a plurality of grilles 121 in an annular array, an air intake gap is formed between two adjacent grilles 121 , and a plurality of air intake gaps are formed. Then the above-mentioned secondary air inlet 202 is formed. It should be noted that the secondary air inlet 202 and the primary air outlet are the same opening.
  • the grating 121 is in the shape of a long strip, and the length direction of the grating 121 is parallel to the axial direction of the first inner cylinder 12 .
  • the air inlet direction of the air inlet gap is arranged at an included angle with the radial direction of the air inlet gap, so that the annular arrangement of the plurality of grilles 121 is similar to the arrangement of the louvers.
  • the second inner cylinder 13 and the third inner cylinder 14 are integrally formed, so that the connection between the second inner cylinder 13 and the third inner cylinder 14 is smoothly arranged, so that the third-stage cyclone is formed.
  • the cavity wall of the cavity 301 is smooth, and there is no installation gap. When the airflow flows in the third-stage cyclone cavity 301 , there will be no dust stuck in the installation gap.
  • the second inner cylinder 13 and the third inner cylinder 14 together form a conical cylinder
  • the interior of the conical cylinder is the tertiary cyclone cavity 301
  • the inner walls of the two are smoothly connected
  • the bottom end of the shaped cylinder is arranged close to the swirl chamber 1501 .
  • the conical tube structure makes the flow rate of the airflow gradually smooth from the bottom to the top, preventing turbulent flow at the top of the conical tube (the top of the second inner tube 13 ), so that most of the dust can be stably settled to the third-level dust collection in cavity 302 .
  • annular protrusion 131 is formed radially outwardly at the connection between the second inner cylinder 13 and the third inner cylinder 14 , and the first inner cylinder 12 can be fixed on the annular protrusion section 131. More specifically, in conjunction with FIGS. 4 to 6 , the spiral lines in FIGS. 4 and 6 both represent airflow.
  • the annular protrusion 131 is provided with a positioning hole 1311 , and the first inner cylinder 12 has a positioning column 1211 inserted into the positioning hole 1311 , so that the first inner cylinder 12 is positioned and fixed on the annular protrusion 131 .
  • the first inner cylinder 12 When the first inner cylinder 12 includes a plurality of grilles 121 in an annular array, one end of the grille 121 is extended with a positioning column 1211, and the positioning column 1211 of each grille 121 can be inserted into the positioning hole 1311 of the annular protrusion, so that Each grid 121 is respectively inserted on the annular protrusion 131 .
  • the installation of the first inner cylinder 12 is not only convenient, but also the first inner cylinder 12 and the gyratory cylinder 15 can be directly pulled out from the annular protrusion 131 when the dust deposited in the secondary dust collecting chamber needs to be cleaned. , and the dust can be poured out.
  • the second inner cylinder 13 is provided inside the first inner cylinder 12 , and the annular protrusion 131 connects the first inner cylinder 12 and the second inner cylinder 13
  • the bottom of the gyratory cylinder 15 is connected to the top of the first inner cylinder 12 and the second inner cylinder 13, then the first inner cylinder 12, the second inner cylinder 13, the annular protrusion 131 and the bottom of the gyratory cylinder 15 (that is, the lower The swirl bottom 152 ) is enclosed to form a secondary cyclone cavity 201 .
  • the spiral line in FIG. 7 represents the airflow.
  • the gyratory drum 15 includes a swirling circumferential portion 151, an air guide portion 153 and a swirling bottom portion 152.
  • the air guide portion 153 is arranged inside the swirling circumferential portion 151 and is used to guide the airflow, so that the airflow is guided by the gyratory drum 15 and enters the second interior.
  • the inside of the barrel 13 and the third inner barrel 14 (tertiary cyclone chamber 301 ).
  • the swirling bottom 152 is connected to the end of the swirling circumferential portion 151 close to the first inner cylinder 12 for separating the secondary cyclone cavity 201 and the swirling cavity 1501 to prevent the airflow in the secondary cyclone cavity 201 from directly entering the swirling cavity without the second deposition 1501, which can enhance the dust removal performance.
  • the swirl bottom 152 is provided with the above-mentioned secondary air outlet 203 , so that the airflow can only enter the swirl cavity 1501 through the secondary air outlet 203 .
  • the air guide portion 153 includes a plurality of gradually expanding vanes 1531 .
  • the expanding vanes 1531 are circumferentially arranged and radially distributed.
  • the function of the expanding vanes 1531 is to make the airflow from The edge of the convoluted circumferential portion 151 flows toward the center of the convoluted circumferential portion 151 , and then the airflow enters the third-stage cyclone cavity 301 .
  • the expanding blades 1531 are gradually expanded from the center of the swirling circumferential portion 151 to the edge of the swirling circumferential portion 151 , so that the airflow gradually gathers from the edge of the swirl circumferential portion 151 to the center of the swirl circumferential portion 151 , and then enters the third-stage cyclone cavity. 301.
  • the swirling drum 15 includes a swirling circumferential portion 151 , an air guide portion 153 and a swirling bottom portion 152 , and also includes a central support portion 154 , which is used for connecting the gradually expanding blades. 1531 and the gyratory circumferential portion 151, so that the overall strength of the gyratory drum 15 can be strengthened.
  • the central support portion 154 can also serve to block the airflow after the secondary sedimentation from entering the filter 2 without the third sedimentation.
  • the central support portion 154 includes an annular portion 1541 and an inner guide cylinder 1542.
  • the inner guide cylinder 1542 is formed by the inner ring of the annular portion 1541 extending axially toward the third-stage cyclone cavity 301, and the annular portion 1541 can be partially shielded.
  • the top of the third-stage cyclone chamber 301 prevents the air flow after the secondary sedimentation from entering the filter 2 without the third sedimentation.
  • the setting of the inner guide cylinder 1542 has a shielding effect on the airflow guided by the gradually expanding vanes 1531, preventing the airflow guided by the expanding vanes 1531 from being sprayed directly to the center of the third-stage cyclone cavity 301, so that the air flow at the center of the third-stage cyclone cavity 301 is prevented.
  • the air flow is relatively stable, maintaining a stable and continuous state of inputting air flow to the filter 2 .
  • the end of the inner guide cylinder 1542 away from the annular portion 1541 is provided with a reinforcing rib 1543, the reinforcing rib 1543 is connected to the inner wall of the inner guide cylinder 1542, and has the function of supporting and strengthening the inner guide cylinder 1542, preventing the inner guide cylinder 1542 Deformation.
  • the specific structure of the reinforcing rib 1543 is not limited here, and may be a cross rib or other structure.
  • the gyratory cylinder 15 and the first inner cylinder 12 are integrally formed.
  • the swirling circumferential portion 151 of the swirling cylinder 15 is axially connected to the first inner cylinder 12
  • the first inner cylinder 12 can be formed by axially extending the swirling circumferential portion 151 .
  • the integral molding of the revolving cylinder 15 and the first inner cylinder 12 eliminates the need to install the revolving cylinder 15 and the first inner cylinder 12, which can save assembly costs.
  • a vacuum cleaner is also provided, and the vacuum cleaner includes the cyclone dust removal structure 1 in any of the above embodiments.
  • Vacuum cleaners can be of various types, such as hand-held and seated.
  • the vacuum cleaner also includes a motor, a filter 2 and a suction head assembly 3.
  • the motor is used to generate negative pressure in the vacuum cleaner, so that the suction head assembly 3 can suck the dust on the ground into the interior of the vacuum cleaner, and form a rotating airflow in the cyclone dust removal structure 1. , the inhaled airflow is dedusted, and then discharged through the filter 2.
  • the filter 2 is connected to the end of the gyratory cylinder 15 away from the third inner cylinder 14 , that is, the filter 2 is arranged at the third-stage air outlet of the third-stage cyclone cavity 301 .
  • the vacuum cleaner in the above embodiment adopts the cyclone dust removal structure 1 in any of the above embodiments.
  • the cyclone dust removal structure 1 has a first-level cyclone cavity 101, a second-level cyclone cavity 201 and a third-level cyclone cavity 301, which can clean the inhaled dirt.
  • the air carries out three dust sedimentation, which greatly reduces the amount of dust entering the filter 2, and the filter 2 is set at the cyclone 15, which is far away from the third-stage dust collecting chamber 302, and the dust is not easily affected by the airflow. Entering the filter 2 can prolong the service life of the filter 2 and reduce the replacement frequency of the filter 2 in the vacuum cleaner.
  • the suction head assembly 3 includes a suction head casing 31 and a side brush 32 rotatably connected to the suction head casing 31 , and the side brush 32 is arranged at the edge of the suction head casing 31 for Clean sanitary corners.
  • the number of the side brushes 32 is not limited here, and the side brushes 32 can be provided at each corner of the suction head housing 31 .
  • the side brush 32 includes a hub 321 and a plurality of bristles 322 circumferentially arranged on the outer periphery of the hub 321. When the vacuum cleaner is working, the hub 321 of the side brush 32 rotates, so that the bristles 322 rotate to clean the dead corners and improve the cleaning strength of the vacuum cleaner.
  • the filter 2 is connected with the cyclone dust removal structure 1 by a rotary buckle, so that the cyclone dust removal structure 1 can be easily removed for dust cleaning.
  • the casing of the filter 2 is provided with a first snap portion
  • the outer cylinder 11 of the cyclone dust removal structure 1 is provided with a second snap portion
  • the first snap portion and the second snap portion are rotatably snapped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Cyclones (AREA)

Abstract

Structure de dépoussiérage à cyclone (1) et aspirateur. La structure de dépoussiérage à cyclone (1) comprend un cylindre externe (11), un premier cylindre interne (12), un deuxième cylindre interne (13), un troisième cylindre interne (14) agencé au niveau d'une extrémité du deuxième cylindre interne (13), et un cylindre giratoire (15) agencé au niveau de l'autre extrémité du deuxième cylindre interne (13), une cavité de cyclone primaire (101) étant formée entre le cylindre externe (11) et le premier cylindre interne (12) ; une cavité de cyclone secondaire (201) étant formée entre le premier cylindre interne (12) et le deuxième cylindre interne (13) ; le cylindre giratoire (15) étant doté en interne d'une cavité giratoire (1501) ; et les intérieurs du deuxième cylindre interne (13) et du troisième cylindre interne (14) formant ensemble une cavité cyclonique de troisième étage (301). La structure de dépoussiérage à cyclone (1) peut transporter une sédimentation de poussière trois fois et réduit la quantité de poussière qui entre dans un filtre (2). De plus, le filtre (2) est agencé relativement loin d'une cavité de collecte de poussière de troisième étage (302), de sorte que la poussière n'est pas susceptible de pénétrer dans le filtre (2) et la durée de vie du filtre (2) peut être prolongée.
PCT/CN2020/134206 2020-12-07 2020-12-07 Structure de dépoussiérage à cyclone et aspirateur WO2022120514A1 (fr)

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