WO2020078074A1 - Dispositif de conversion de flux d'air et collecteur de poussière le comprenant - Google Patents

Dispositif de conversion de flux d'air et collecteur de poussière le comprenant Download PDF

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Publication number
WO2020078074A1
WO2020078074A1 PCT/CN2019/099176 CN2019099176W WO2020078074A1 WO 2020078074 A1 WO2020078074 A1 WO 2020078074A1 CN 2019099176 W CN2019099176 W CN 2019099176W WO 2020078074 A1 WO2020078074 A1 WO 2020078074A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
conversion device
flow channel
airflow
port
Prior art date
Application number
PCT/CN2019/099176
Other languages
English (en)
Chinese (zh)
Inventor
王德旭
廖泓斌
李吉
黄月林
任敏
陈闪毅
陈勇
韩雪东
Original Assignee
珠海格力电器股份有限公司
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 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Priority to EP19874489.8A priority Critical patent/EP3838090A4/fr
Priority to JP2021513465A priority patent/JP7083425B2/ja
Publication of WO2020078074A1 publication Critical patent/WO2020078074A1/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
    • A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
    • A47L7/06—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air for supporting the suction cleaner on the exhaust air
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven

Definitions

  • the present application relates to the technical field of airflow driving equipment, in particular to an airflow conversion device and a vacuum cleaner including the same.
  • the vacuum cleaner creates suction through negative pressure, and sucks the dust in some areas into the designated cavity to achieve the cleaning effect. Compared with ordinary brooms and other cleaning tools, the cleaning effect is better, which is more and more popular.
  • the dust in some areas cannot be removed by existing vacuum cleaners, so there are some vacuum cleaners with a dust blowing function.
  • These types of machines generally use motors.
  • the biggest disadvantage of this structure is that the air outlet is used to blow air, because the dust blowing air duct is still connected to the original dust suction air duct, so that the blown air will contain dust, which will cause secondary pollution.
  • the motor will be heated, resulting in a shortened motor life, which makes the structure of the vacuum cleaner more complicated and more expensive.
  • one of the objectives of the present application is to provide an airflow conversion device capable of achieving airflow direction conversion and a vacuum cleaner including the same.
  • an airflow conversion device including a first part, a second part, and an impeller structure, a first flow channel is formed in the first part, and a second flow channel is formed in the second part,
  • the impeller structure is configured such that when a driving air flow is provided to one of the first flow path and the second flow path, the driving air flow rotates the impeller structure, under the action of the impeller structure, In the other of the first flow path and the second flow path, an air flow opposite to the flow direction of the driving air flow is generated.
  • the first part is configured as a cylindrical structure, the first flow channel is formed inside the first part, a first side port is formed on the side wall of the first part, and the port at the second end of the first part constitutes A first axis port, the first side port and the first axis port respectively constitute two ports of the first flow channel; and / or,
  • the second part is configured as a cylindrical structure, the second part forms the second flow channel, a second side port is formed on the side wall of the second part, and the second end of the second part
  • the port constitutes a second axis port, and the second side port and the second axis port constitute two ports of the second flow channel.
  • first end of the first part constitutes a first connection end
  • first end of the second part constitutes a second connection end
  • first connection end can be connected to the second connection end
  • the impeller structure includes a first impeller and a second impeller, the first impeller and the second impeller rotate synchronously, the rotation directions of the first impeller and the second impeller are opposite, the first The impeller is located in the first flow channel, and the second impeller is located in the second flow channel.
  • the impeller structure further includes a connecting shaft, and the first impeller and the second impeller are disposed on the connecting shaft.
  • first support structure is provided in the first flow channel
  • second support structure is provided in the second flow channel
  • first support structure and the second support structure support the connecting shaft
  • the airflow conversion device further includes a rotating shaft, and the connecting shaft is rotatably connected to the first supporting structure and the second supporting structure through the rotating shaft.
  • the air flow replacement device further includes a partition structure that separates the first flow channel and the second flow channel.
  • two partition structures are provided, and the two partition structures are spliced to separate the first flow channel and the second flow channel.
  • the airflow conversion device is the airflow conversion device of claim 5,
  • the partition structure includes a partition plate, the partition plate is configured as a semi-circular ring structure, and the two partition plates are spliced to form a circle In a ring structure, the connecting shaft passes through the inner circle of the ring structure.
  • the partition structure further includes a mounting portion configured as a semi-cylindrical structure, an axis of the mounting portion is perpendicular to the partition plate, and an outer edge of the partition plate is connected to the mounting On the radial inner side wall.
  • a first mounting seat is provided inside the first part
  • a second mounting seat is provided inside the second part
  • the first mounting seat and the second mounting seat abut against both ends of the mounting portion Then complete the installation of the installation part.
  • a limiting structure is provided on the connecting shaft. In the axial direction of the connecting shaft, the limiting structure cooperates with the partition plate to limit the connecting shaft.
  • the limit structure is configured as an annular structure formed along the circumferential direction of the connecting shaft, the annular structure is provided with two, an annular groove is formed between the two annular structures, the partition plate The inner edge extends into the annular groove.
  • a vacuum cleaner including a body and the above-mentioned airflow conversion device, the airflow conversion device can be mounted to an air suction port of the vacuum cleaner.
  • the air flow replacement device provided by the present application is provided with a first flow channel and a second flow channel, and the impeller structure is arranged so that when one of the flow channels is provided with driving air flow, the other flow channel can generate an air flow opposite to the driving air flow.
  • the airflow conversion device is used on the equipment for inhalation or blowing, which can enrich the functions of the equipment and will not change the structure of the equipment.
  • FIG. 1 shows a schematic structural diagram of an airflow conversion device provided by this application
  • FIG. 2 shows a schematic diagram of the explosion structure of the airflow conversion device
  • FIG. 3 is a schematic cross-sectional view of the air flow conversion device in an assembled state
  • FIG. 4 shows a schematic cross-sectional view of the airflow conversion device in an exploded state
  • Figure 5 shows the airflow state in the airflow conversion device when used on a vacuum cleaner
  • Fig. 6 shows the airflow state in the airflow conversion device when used on a hair dryer.
  • the airflow conversion device provided by the present application can be used in a suction device or a blowing device, used in the suction device to enable the suction device to blow, and the airflow conversion device is used in the blowing device to enable the blowing device to suction.
  • the airflow conversion device includes a first part 100, a second part 200 and an impeller structure 300.
  • the first part 100 has a first flow path formed therein, and the second part 200 has a A second flow channel, the first flow channel and the second flow channel are not connected, a part of the impeller structure 300 is located in the first flow channel, and another part is located in the second flow channel, in the impeller structure 300 Under the action of the first flow channel or the second flow channel to provide a driving air flow to drive the impeller structure 300 to rotate, under the action of the impeller structure 300, the second flow channel or the first flow channel generates Drive the airflow to the opposite airflow.
  • the first part 100 and the second part 200 can be optionally configured as a cylindrical structure, the inner cavity of the cylindrical structure constitutes the first flow channel and the second flow channel, and the axial direction of the first part 100 is
  • the first end forms a first connection end 110
  • the first end in the axial direction of the second portion 200 forms a second connection end 210.
  • the diameters of the first connection end 110 and the second connection end 210 are With the same dimensions, the first connection end 110 and the second connection end 210 can be connected by snap connection, screw connection, or the like.
  • the first connection end 110 and the second connection end 210 are sealedly connected, for example, the first connection end 110 and the second connection end 210 form a sealed contact through a structure in which a positioning rib and a positioning groove cooperate, or , A sealing structure is provided on the first connection end 110 and / or the second connection end 210.
  • the first part 100 is provided with a first positioning structure 111
  • the second part 200 is provided with a second positioning structure 211
  • the first connection end 110 and the second connection When the end 210 is connected, the first positioning structure 111 and the second positioning structure 211 cooperate to perform positioning.
  • the first positioning structure 111 is configured as a cylindrical structure extending from the first connecting end 110 inside the first portion 100, and the second positioning structure 211 is configured as a second portion In the hole or groove-like structure formed on the inner wall of 200, when the first connecting end 110 and the second end 210 are connected, the first positioning structure 111 is inserted into the second positioning structure 211.
  • a port of the second end of the first part 100 away from the first end thereof constitutes a first shaft port 120, and the first shaft port 120 communicates the first flow channel with the outside;
  • the side wall of the first part 100 is formed with A first side port 130, the first side port 130 communicates the first flow channel with the outside, optionally, the first side port 130 is formed at a position close to the first connection end 110, further,
  • the port of the second end of the second part 200 away from the first end thereof constitutes a second shaft port 220, and the second shaft port 220 connects the second flow channel to the outside; the side wall of the second part 200 A second side port 230 is formed thereon, the second side port 230 allows the second flow channel to communicate with the outside, optionally, the second side port 230 is formed at a position close to the second connection end 210 Further, there are a plurality of second side ports 230 distributed circumferentially along the second portion 200, and the second shaft port 220 and the second side port 230 constitute two of the second flow channels port.
  • the impeller structure 300 includes a first impeller 310, a second impeller 320, and a connecting shaft 330.
  • the first impeller 310 and the second impeller 320 are connected by the connecting shaft 330, so that the first impeller 310 and the The second impeller 320 can rotate synchronously, and the first impeller 310 and the second impeller 320 are arranged in opposite rotation directions.
  • the first impeller 310, the second impeller 320, and the connecting shaft 330 are integrated It is formed, or, after being formed separately, it is connected into a unitary structure.
  • the first impeller 310 extends from the first connection end 110 on the first part 100 into the first flow channel
  • the second impeller 320 extends from the second connection end 220 on the second part 200 Into the second flow channel, since the rotation directions of the first impeller 310 and the second impeller 320 are opposite, when the impeller structure 300 rotates, the first flow channel and the second flow channel The direction of the airflow is opposite.
  • a first support structure 140 is provided inside the first part 100.
  • the first support structure 140 includes a first support portion 141 and a first connection portion 142.
  • the inner wall of the first portion 100 is connected to the first connection portion 142.
  • the space inside the first part 100 between the first support structure 140 and the first connection end 110 constitutes a first accommodating cavity, and the first accommodating cavity is used to accommodate the first impeller 310, the The first support portion 141 is located in the first receiving cavity.
  • the first support portion 141 is located on the axis of the first portion 100.
  • the first accommodating cavity is in communication with the cavity between the first support structure 140 and the first shaft port 120, and the first side port 130 is in communication with the first accommodating cavity, that is, the first The accommodating cavity belongs to a part of the first flow channel, that is, the first impeller 310 is located in the first flow channel.
  • a second support structure 240 is provided inside the second part 200.
  • the second support structure 240 includes a second support part 241 and a second connection part 242.
  • the second connection part 242 and the second part 200 The inner wall is connected to the second connection portion 242.
  • the space inside the second part 200 between the second support structure 240 and the second connection end 210 constitutes a second accommodating cavity, and the second accommodating cavity is used to accommodate the second impeller 320.
  • the second support portion 241 is located in the second receiving cavity.
  • the second support portion 241 is located on the axis of the second portion 200.
  • the second receiving cavity communicates with the cavity between the second support structure 240 and the second shaft port 220, and the second side port 230 communicates with the second receiving cavity, that is, the second The accommodating cavity belongs to a part of the second flow channel, that is, the second impeller 320 is located in the second flow channel.
  • the first support portion 141 and the second support portion 241 support the connecting shaft 330.
  • the connecting shaft 330 is configured as a cylindrical structure
  • the first support portion 141 and the second support portion 241 are configured as cylindrical structures
  • the cylindrical structures respectively extend from both ends of the connecting shaft 330 It is inserted into the connecting shaft 330 to support the connecting shaft 330 and enable the connecting shaft 330 to rotate.
  • the first support portion 141 and the second support portion 241 may also be provided in a cylindrical structure, and both ends of the connecting shaft 330 are inserted into the two cylindrical structures, respectively.
  • a rotating shaft 500 is further provided, the rotating shaft 500 is penetrated inside the connecting shaft 330, and both ends of the rotating shaft 500 are rotatably connected to the first support portion 141 and the On the second support portion 241, the rotating shaft 500 rotates synchronously with the impeller structure 300.
  • both ends of the rotating shaft 500 are inserted into the first supporting portion 141 and the second supporting portion 241, and both ends of the connecting shaft 330 are sleeved onto the first supporting portion 141 and the The outer side of the second support portion 241 makes the rotation of the impeller structure 300 more stable.
  • the airflow conversion device further includes a partition structure 400 that isolates the space where the first impeller 310 and the second impeller 320 are located, that is, the partition structure 400 allows the first The first flow path and the second flow path are not connected.
  • a partition structure 400 that isolates the space where the first impeller 310 and the second impeller 320 are located, that is, the partition structure 400 allows the first The first flow path and the second flow path are not connected.
  • two partition structures 400 are provided, and two partition structures 400 are spliced to form a structure capable of separating the first flow channel and the second flow channel.
  • the partition structure 400 includes a partition plate 410 configured as a semi-circular ring structure, two partition plates 410 are butted to form a complete ring structure, and the connecting shaft 330 is separated from the ring
  • the inner circle of the structure passes through, so that the first impeller 310 and the second impeller 320 are located on both sides of the partition plate 410, and the connecting shaft 330 can rotate relative to the partition plate 410.
  • the radially outer edge of the partition plate 410 is in contact with the inner wall of the first portion 100 and / or the second portion 200.
  • the partition plate 410 is in sealing contact with the first portion 100 and / or the second portion 200, and the sealing plate 410 is also in sealing contact with the connecting shaft 330.
  • the partition structure 400 further includes a mounting portion 420 configured as a semi-cylindrical structure, the axis of the mounting portion 420 is perpendicular to the partition plate 410, and the partition plate 410 The outer edge is connected to the radially inner side wall of the mounting portion 420.
  • the partition plate 410 is located in the middle of the mounting portion 420 in the axial direction of the mounting portion 420.
  • a first mounting seat 150 is provided inside the first part 100, and the first mounting seat 150 is configured as a cylindrical structure provided in the first accommodating cavity.
  • the first The axis of the mounting base 150 is collinear with the axis of the first portion 100.
  • first mounting base 150 is connected to the first connecting portion 142 on the first support structure 140.
  • the radial dimension is the same as the radial dimension of the first mounting base 150, the axial end of the mounting portion 420 abuts the first mounting base 150, optionally, the mounting portion 420 is
  • the first mounting base 150 is in sealing contact.
  • a second mounting seat 250 is provided in the second part 200, and the second mounting seat 250 is configured as a cylindrical structure provided in the second accommodating cavity.
  • the second mounting seat 250 The axis is collinear with the axis of the second part 200, one end of the second mounting base 250 is connected to the second connecting portion 242 on the second support structure 240, and the radial dimension of the mounting portion 420 Same as the radial dimension of the second mounting base 250, the axial end of the mounting portion 420 abuts the second mounting base 250, optionally, the mounting portion 420 is in contact with the second The mount 250 is in sealed contact. The mounting portion 420 is pressed between the first mounting base 150 and the second mounting base 250 to complete the installation.
  • an annular gap is formed between the first mounting base 150 and the inner wall of the first part 100, and a communication hole is provided in the first mounting base 150 to make the first mounting base
  • the internal space of 150 can communicate with the annular gap through the through hole, so that the first side port 130 communicates with the inside of the first mounting base 150.
  • the second mounting base 250 is also provided with a through hole, so that the second side port 230 communicates with the inside of the second mounting base 250.
  • the mounting portion 420 is provided with a communication hole 421, and the communication hole 421 is provided on both sides of the partition plate 410, and the communication hole 421 is connected to the first
  • the mounting base 150 and the second mounting base 250 are provided with through holes in the same manner. Through holes may also be provided in the mounting portion 420, the first mounting base 150, and the second mounting base 250 at the same time.
  • the separation structure 400 may also be disposed between the first part 100 and the second part 200, that is, the first connection end 110 on the first part 100 and the The second connecting end 210 on the second part 200 is connected to the mounting portion 420, and at this time, it is not necessary to provide the first mounting base 150 and the second mounting base 250.
  • a limiting structure 331 is provided on the connecting shaft 330, and the limiting structure 331 cooperates with the partition plate 410 in the axial direction of the connecting shaft 330 to limit the connecting shaft 330
  • the role can be optionally configured as an annular structure formed on the outer wall of the connecting shaft 330 along the circumferential direction thereof.
  • Two limiting structures 331 are provided, and an annular shape is formed between the two limiting structures 331 Groove 332, the annular groove 332 is installed in cooperation with the partition plate 410, so that the radially inner edge of the partition plate 410 can extend into the annular groove 332 and pass through the annular groove 332
  • the partition plate 410 cooperates to limit the connecting shaft 330 in its axial direction.
  • the arrangement of the annular groove 332 also makes it easier to form a sealing fit between the connecting shaft 330 and the partition plate 410, for example, a seal can be provided in the annular groove 332 to form with the partition plate 410 Seal fit, etc.
  • the airflow conversion device provided by the present application can be installed on a vacuum cleaner, and the second part 200 is connected as a connecting end to the air suction port of the vacuum cleaner.
  • the air flow in the first part 100 and the second part 200 is as shown in FIG. 5.
  • a driving air flow is generated in the second flow channel.
  • the air flows into the second side port 230, and the airflow flows into the second flow channel, and drives the second impeller 320 to rotate, and then flows into the air intake duct of the cleaner through the second shaft port 220.
  • the rotation of the second impeller 320 drives the first impeller 310 to rotate synchronously.
  • the airflow conversion device enables the vacuum cleaner to realize the function of blowing air.
  • the airflow conversion device provided by the present application can also be installed on a hair dryer, and the second part 200 is connected as a connecting end to the air outlet of the hair dryer.
  • the airflow in the first part 100 and the second part 200 is as shown in FIG. 6.
  • a driving airflow is generated in the second flow channel.
  • the second shaft port 220 flows into the second flow channel and drives the second impeller 320 to rotate, and then is blown out from the second side port 230.
  • the rotation of the second impeller 320 drives the first impeller 310 to rotate synchronously.
  • the first shaft port 120 of a part 100 enters the air, the airflow flows through the first flow channel and is blown out by the first side port 130, and the airflow conversion device enables the blower to realize the function of air suction.
  • the first part 100 may also be used as a connecting end, and the first part 100 and the second part 200 have the same effect as a connecting end.
  • the air flow conversion device provided by the present application by setting the two impellers on the impeller structure to have opposite rotation directions, can make the reverse flow steering part of the two parts of the reverse flow structure absorb air and rotate the other part when the impeller structure rotates. Therefore, when the countercurrent replacement structure is driven by suction, the function of blowing air can be realized, or when the airflow conversion device is driven by blowing air, the function of suction air can be realized.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Electric Suction Cleaners (AREA)

Abstract

L'invention concerne un dispositif de conversion de flux d'air et un collecteur de poussière le comprenant. Le dispositif de conversion de flux d'air comprend une première partie (100), une seconde partie (200) et une structure de turbine (300) ; un premier canal d'écoulement est formé dans la première partie (100) ; un second canal d'écoulement est formé dans la seconde partie (200) ; et la structure de turbine (300) est configuré comme suit : lorsqu'un flux d'air d'entraînement est fourni à l'un des deux canaux d'écoulement, le flux d'air d'entraînement fait tourner la structure de turbine (300) sous l'action de la structure de turbine (300), l'autre canal d'écoulement génère un flux d'air dans la direction opposée à partir du flux d'air d'entraînement. Le dispositif de conversion de flux d'air fourni par la présente invention offre le premier canal d'écoulement et le second canal d'écoulement, et permet à un canal d'écoulement de générer un écoulement d'air dans la direction opposée à partir du flux d'air d'entraînement fourni à l'autre canal d'écoulement au moyen de la structure de turbine (300). Le dispositif de conversion de flux d'air est appliqué à des dispositifs d'aspiration d'air ou de soufflage d'air, de sorte que les dispositifs présentent des fonctions abondantes sans changer la structure.
PCT/CN2019/099176 2018-10-15 2019-08-05 Dispositif de conversion de flux d'air et collecteur de poussière le comprenant WO2020078074A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19874489.8A EP3838090A4 (fr) 2018-10-15 2019-08-05 Dispositif de conversion de flux d'air et collecteur de poussière le comprenant
JP2021513465A JP7083425B2 (ja) 2018-10-15 2019-08-05 気流変換装置及びそれを含む掃除機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811195428.0 2018-10-15
CN201811195428.0A CN109288447A (zh) 2018-10-15 2018-10-15 气流转换装置及包括其的吸尘器

Publications (1)

Publication Number Publication Date
WO2020078074A1 true WO2020078074A1 (fr) 2020-04-23

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EP (1) EP3838090A4 (fr)
JP (1) JP7083425B2 (fr)
CN (1) CN109288447A (fr)
WO (1) WO2020078074A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN109288447A (zh) * 2018-10-15 2019-02-01 珠海格力电器股份有限公司 气流转换装置及包括其的吸尘器
CN110179390A (zh) * 2019-06-12 2019-08-30 珠海格力电器股份有限公司 吸尘器转换件及吸尘器组件

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EP3838090A4 (fr) 2021-10-13
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JP7083425B2 (ja) 2022-06-10
JP2022500586A (ja) 2022-01-04

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