WO2018153281A1 - 具有自清洁功能的吸尘器及其自清洁方法 - Google Patents

具有自清洁功能的吸尘器及其自清洁方法 Download PDF

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Publication number
WO2018153281A1
WO2018153281A1 PCT/CN2018/075912 CN2018075912W WO2018153281A1 WO 2018153281 A1 WO2018153281 A1 WO 2018153281A1 CN 2018075912 W CN2018075912 W CN 2018075912W WO 2018153281 A1 WO2018153281 A1 WO 2018153281A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
vacuum cleaner
cleaning
self
air supply
Prior art date
Application number
PCT/CN2018/075912
Other languages
English (en)
French (fr)
Inventor
刘海平
朱锦昌
王峰
Original Assignee
天佑电器(苏州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710332285.2A external-priority patent/CN108497996B/zh
Application filed by 天佑电器(苏州)有限公司 filed Critical 天佑电器(苏州)有限公司
Priority to EP18758056.8A priority Critical patent/EP3586710B1/en
Publication of WO2018153281A1 publication Critical patent/WO2018153281A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/12Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/12Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/0072Mechanical means for controlling the suction or for effecting pulsating action
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12Dry filters
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/20Means for cleaning filters

Definitions

  • the present invention relates to the field of vacuum cleaners, and more particularly to a vacuum cleaner having a self-cleaning function, and to a self-cleaning method of a vacuum cleaner.
  • Vacuum cleaners are widely used for cleaning in various places.
  • vacuum cleaners typically include an organic head assembly, a filter assembly, and a barrel assembly.
  • the filter assembly is disposed in a closed space formed by the engagement of the handpiece assembly and the tub assembly.
  • the outer edge of the head, the outer edge of the filter assembly, and the upper edge of the barrel assembly are assembled and pressed in the axial direction in this direction, thereby effectively preventing dust from leaking out.
  • a ash bucket vacuum cleaner is a commonly used household appliance.
  • the ash bucket vacuum cleaner has a large power and a large intake air amount, and therefore, the filter has a heavy burden.
  • the inside of the air duct is easy to accumulate dust, which affects the effective vacuuming of the dust, and the dusting effect is attenuated more seriously; the same, it also reduces the service life of the filter.
  • the user needs to frequently disassemble and clean the filter, and the cleaning and cleaning work is large, which brings a poor experience to the user.
  • the present invention provides a vacuum cleaner having a self-cleaning function, including a head assembly, a dust bucket, a hose connected to the head assembly or the dust bucket, and a connection to the head assembly.
  • a filter the handpiece assembly includes a fan and an air inlet and an air outlet communicating with the outside, the hose has a suction port communicating with the outside, the suction port is in communication with the air inlet, the fan is disposed in the filter and Between the air outlets, a plenum is disposed between the filter and the fan, the filter has a cleaning side and a non-cleaning side, and the vacuum cleaner has a dusting mode and a self-cleaning mode, and the airflow mode Successively Passing through the suction port, the air inlet, the filter, the fan and the air outlet; in the self-cleaning mode, the airflow sequentially passes through the air inlet, the fan and the impact filter cleaning side; the air inlet is provided with a supplemental valve, In the vacuum
  • the suction port In the self-cleaning mode, the suction port is closed and the air supply valve controls the air supply port to snoring. Touching the port of the suction port to press the air supply valve to close the suction port and controlling the air supply valve to open the air supply port, the hose being separated from the air supply valve to be able to snore the suction port and the air filling The valve closes the air inlet.
  • the outer surface of the handpiece assembly is provided with a mouthpiece closure, and the makeup valve is at least partially disposed within the mouthpiece closure.
  • the mouthpiece closure comprises a projection, the outer diameter of the projection being adapted to the inner diameter of the suction opening.
  • the mouthpiece closure further includes a hose card slot, the hose card slot is disposed around the protrusion; the pipe wall of the suction port is inserted into the hose card slot to touch Press the air supply valve.
  • the hose card slot has a groove outer wall and a groove inner wall; a distance between the groove outer wall and the groove inner wall corresponds to a thickness of the pipe wall of the suction port.
  • the makeup valve does not protrude from the mouthpiece closure as a whole.
  • the head assembly includes a fan base supporting a fan and a top cover disposed on the fan base, and the supplemental valve is installed between the fan base and the top cover.
  • the top cover is provided with a hose card slot, the hose is inserted into the hose card slot to close the suction port and control the air filling valve to snore the air supply port .
  • the air supply valve includes a air supply valve body and a air supply valve cover mounted on the fan base, and the air supply valve body is provided with a gas supply hole communicating with the air supply port.
  • the supplemental bonnet cover is movable relative to the supplemental valve body to snore or close the plenum.
  • an upper portion of the air-filling hole is provided with a plenum valve
  • the hose slot is provided with an air-filling hole and a protrusion adjacent to the air-filling hole, the plenum cap Partially passing through the air supply hole and abutting against the air supply valve cover, the hose is inserted into the hose card slot, the protrusion closes the suction port, and the pipe wall of the suction port touches the air supply valve cap to drive the air supply
  • the bonnet moves relative to the supplemental valve body to snore the plenum.
  • the air supply valve further includes an elastic member that presses against the air damper cover, and the air damper cover can be held under the action of the elastic member to close the air venting hole. position.
  • the vacuum cleaner further has a supplemental air mode, in which the airflow sequentially passes through the air supply port, the fan, and the air outlet.
  • the vacuum cleaner has a first air chamber from the air inlet to a non-clean side of the filter, a second air chamber from the cleaning side of the filter to a fan, and the fan a third air chamber to the air outlet and a fourth air chamber from the air outlet to the cleaning side of the filter, the fourth air chamber having a self-cleaning air outlet disposed adjacent to the air outlet, the vacuum cleaner being in a vacuum mode
  • the suction port and the air outlet are smashed, the air inlet is closed, and the external airflow sequentially passes through the suction port, the air inlet, the first air chamber, the second air chamber, and the third air chamber, and is discharged from the air outlet;
  • the vacuum cleaner is in the air supply mode, the air outlet and the air supply port are snoring, the suction port is closed, and the external airflow sequentially passes through the air supply port, the second air chamber, and the third air chamber, and is discharged from the air outlet;
  • the vacuum cleaner is in a self-
  • the handpiece assembly further includes a switching valve operatively movable between two positions, wherein in the first position, the switching valve snooches the air outlet And closing the self-cleaning tuyere, and in the second position, the switching valve closes the air outlet and snooze the self-cleaning tuyere.
  • the switching valve includes an operating handle, a rotating shaft driven by the operating handle, and a switching valve cover fixed relative to the rotating shaft, and the handle drives the switching valve cover through the rotating shaft to selectively close the air outlet. And the self-cleaning tuyere.
  • the handpiece assembly is provided with a plurality of injection holes corresponding to the cleaning side of the filter, in which the airflow impinges the filter through the plurality of injection holes The cleaning side, the inner diameter of the plurality of injection holes is increased along the direction of the fan from the inside to the outside.
  • the handpiece assembly is provided with a plurality of injection holes corresponding to the cleaning side of the filter, in which the airflow impinges the filter through the plurality of injection holes The cleaning side; the ratio of the total outlet area of the injection hole to the over-wind area of the fourth air chamber is 1:1.
  • the present invention also provides a self-cleaning method for a vacuum cleaner having a self-cleaning function as described above, the self-cleaning method comprising the steps of: Sl, connecting the hose to the makeup valve; S2 Closing the air outlet; S3, smashing the air outlet; S4, separating the hose from the air supply valve.
  • step S3 is maintained for three seconds, and then the step S2 is performed.
  • the self-cleaning system reduces the user's disassembly cleaning frequency and reduces the workload; (5) The concept is ingenious, the structure is simple, easy to produce, and the applicability is strong; (6) The external cold air entering from the wind-blown road can cool the fan , reduce the fan temperature; (7) Connect the hose to the air supply valve to control the closing of the suction port and the air supply valve, and perform self-cleaning of the filter. The operation is extremely simple and has a better user experience.
  • FIG. 1 is a perspective view of a head assembly of a vacuum cleaner of the present invention
  • FIG. 2 is a schematic view of the back cover of the head assembly of FIG. 1;
  • FIG. 3 is a perspective exploded view of the head assembly of FIG. 1;
  • FIG. 4 is a perspective view of the fan base of FIG. 3;
  • Figure 5 is a partially exploded perspective view of the head assembly and the switching valve of Figure 1;
  • Figure 6 is a front elevational view of the head assembly of Figure 1;
  • Figure 7 is a cross-sectional view taken along line A-A of Figure 6, the ⁇ switching valve is in a first state;
  • FIG. 8 is similar to FIG. 7, and the ⁇ switching valve is in the second state
  • Figure 9 is a plan view of the hood of Figure 3.
  • Figure 10 is a cross-sectional perspective view taken along line B-B of Figure 9;
  • Figure 11 is a plan view of the head assembly of Figure 1;
  • Figure 12 is a cross-sectional view taken along line C-C of Figure 11, the vacuum cleaner being in a vacuum mode;
  • FIG. 13 is similar to FIG. 12, and the vacuum cleaner is in a self-cleaning mode;
  • Figure 14 is a cross-sectional view taken along line DD of Figure 11;
  • Figure 15 is an enlarged schematic view of a portion of Figure 14, the ⁇ ⁇ valve is in a closed state
  • FIG. 16 is similar to FIG. 15 , and the ⁇ ⁇ valve is in a snoring state
  • Figure 17 is a plan view of the vacuum cleaner mouthpiece closure of the present invention.
  • Figure 18 is a cross-sectional view taken along line E-E of Figure 11;
  • FIG. 19 is a schematic view showing the hose of the vacuum cleaner of the present invention not connected to the supplemental damper;
  • FIG. 20 is a schematic view showing the connection of the hose of the vacuum cleaner of the present invention and the air supply valve;
  • Figure 21 is a perspective view of the back cover of Figure 3 (upper visible);
  • Figure 22 is a perspective view of the back cover of Figure 3 (lower visible);
  • FIG. 23 is a schematic structural view of the vacuum cleaner of the present invention in a dust suction mode
  • FIG. 24 is a schematic structural view of a supplemental air mode in which the vacuum cleaner of the present invention is switched from the dust suction mode to the self-cleaning mode;
  • FIG. 25 is a schematic view showing the structure of the vacuum cleaner of the present invention in a self-cleaning mode.
  • the vacuum cleaner includes a head assembly 10, a dust bucket (not shown), and a filter 30 attached to the head assembly 10.
  • the dust bucket can be connected and fastened to the head assembly 10 through a connecting member such as a snap member.
  • a roller can be disposed under the dust bucket to facilitate the movement of the dust bucket.
  • the head assembly 10 is also connected with a hose 21, and the head assembly 10 has an air inlet, one end of the hose 21 is in communication with the air inlet of the head assembly 10, and the other end of the hose 21 has a mouthpiece communicating with the external environment. 22, the outside air can be filtered out from the suction port 22 through the air inlet through the filter 30, and the filtered dust can fall into the dust bucket.
  • the hose can also be attached to the dust bucket.
  • the head assembly 10 includes a fan 11, a fan base 12 supporting the fan 11, a hood 14 sleeved on the fan 11, and a top cover 13 disposed on the upper portion of the fan 11, and the fan base 12 is provided with a filter slot 121, the filter tank 121 penetrates the upper and lower portions of the fan base 12, and the filter 30 is installed in the filter tank 121.
  • Filter 30 It is preferably a flat filter.
  • the top cover 13 is provided with a cornice, the filter 30 is exposed from the cornice, and the cornice is sealed by a rear cover 15 fitted to the top cover 13.
  • the air hood 14 is provided with a tuyere 141.
  • the air outlet 141 is a total air duct formed on the hood 14.
  • the fan base 12 is provided with a fitting groove 122 for accommodating the total air duct.
  • a tray 16 is connected to the lower portion of the fan base 12, and the tray 16 is used to form a duct through which the airflow passes, such as the fan base 12, the windshield 14, and the like.
  • the vacuum cleaner has a first air chamber 41 extending from the air inlet to the filter 30, and the first air chamber is enclosed by a dust bucket (not shown) and the fan base 12 and the tray 16.
  • the second air chamber 42 extends from the filter 30 to the fan 11 to form a vacuum cleaner.
  • the second air chamber 42 is surrounded by the fan base 12 and the tray 16 and the hood 14.
  • the upstream end of the second air chamber 42 is provided with a first tuyere 123, and the first tuyere 123 is disposed on the fan base 12 and located inside the filter tank 12 1 .
  • the blower 11 includes a motor 111 and an impeller 112 driven by a motor, and an air inlet of the impeller 112 is in fluid communication with a downstream end of the second air chamber 42.
  • the fan chamber 112 extends to the air outlet 141 to form a third air chamber of the cleaner.
  • the third air chamber 43 is surrounded by the fan base 12 and the hood 14.
  • the suction port 22 from the hose passes through the first air chamber 41, the filter 30, the second air chamber 42, the fan 11, and the third air chamber 43 to the air outlet 141, that is, the path through which the airflow passes constitutes The vacuum path of the vacuum cleaner.
  • the inside enclosed by the hood 14, the filter 30 and the rear cover 15 is a clean space, and the outside is a non-clean space, that is, the inner side of the filter 30 is a clean side, and the outer side of the filter 30 is a non-clean side, or
  • the suction air passage, the downstream side of the filter 30 is the cleaning side, and the upstream side of the filter 30 is the non-clean side.
  • the air outlet 141 forms a fourth air chamber 44 between the clean sides of the filter 30, and the fourth air chamber 44 has a second air outlet 142 disposed adjacent to the filter and a self disposed adjacent to the air outlet 141.
  • the tuyere 143 is cleaned, and the fourth tuyeres 44 are enclosed by the hood 14 and the rear cover 15, and extend from the self-cleaning tuyere 143 to the clean side of the filter 30.
  • the self-cleaning tuyere 143 is disposed on the wall of the total outlet duct.
  • An air supply chamber 45 is further disposed on the fan base 12, and is disposed adjacent to the filter slot 121.
  • a plenum 451 is provided at the bottom of the air supply chamber 45, and is in gas communication with the first tuyere 234 on the downstream side of the filter 30.
  • the external air may enter the second air chamber 42 from the air supply chamber 45, and then be discharged from the air outlet 141 via the fan 11 and the third air chamber 43, or the external air enters the second air from the air supply chamber 45.
  • the air chamber 42 then enters the fourth air chamber 44 via the fan 11 and the third air chamber 43, passes through the second tuyere 142, passes through the clean side of the filter 30, and then returns to the second air chamber 42 to circulate.
  • the air flow path from the self-cleaning tuyere 143 to the clean side of the filter 30 constitutes a self-cleaning air path of the cleaner.
  • the top cover 13 is provided with a switching valve 60 disposed adjacent to the air outlet 141 and the self-cleaning air port 143.
  • the switching valve 60 can be in two states, the first state, as shown in FIG. As shown in Fig. 12, the self-cleaning tuyere 143 is closed and the tuyere 141 is smashed. In the second state, as shown in Figs. 8 and 13, the air outlet 14 1 is closed and the self-cleaning tuyere 143 is smashed.
  • the vacuum cleaner When the switching valve 60 is in the first state, the vacuum cleaner has three modes, the first mode, the air inlet 451 is closed, the air inlet is opened, the external air enters the first air chamber 41 from the air inlet, and the filter 30 and the second wind
  • the cavity 42, the fan 11 and the third air chamber 43 are discharged from the air outlet 141, that is, the vacuum mode of the vacuum cleaner, and the direction of the solid arrow in FIG.
  • the air inlet 451 is smashed, and the air inlet is closed, and the external air enters the second air chamber 42 from the air supply port 451, and is discharged from the air outlet 141 through the fan 11 and the third air chamber 43, which is a supplemental air mode of the vacuum cleaner;
  • the valve 60 is in the second state, the air supply port 451 is opened, and the air inlet is closed, and the outside air enters the second air chamber 42 from the air supply port 451, passes through the fan 11 and the third air chamber 45, and enters from the self-cleaning air port 143.
  • the four air chamber 44 passes from the cleaning side of the filter 30 and then returns to the second air chamber 42 so as to be in the self-cleaning mode of the vacuum cleaner, and the direction of the dotted arrow in FIG. 18 is the self-cleaning mode.
  • the switching valve 60 includes a handle 62 for operation and a rotating shaft 63 fixedly connected to the handle 62.
  • the rotating shaft 63 is fixedly connected to the handle 62 by splines and screws, and a rotating valve cover is fixed on the rotating shaft 63. 64.
  • the operating handle 62 drives the switching valve cover 64 to rotate between the two positions around the rotating shaft 63 through the rotating shaft 63, so that the switching valve 60 is in the first state or the second state, and the switching valve 60 is in the first state, converting
  • the bonnet 64 closes the self-cleaning tuyere 143 and slams the air outlet 141.
  • the switching valve 60 is in the second state, and the switching valve cover 64 slams the self-cleaning tuyere 143 and closes the air outlet 141. Further, the switching valve 60 further includes an elastic member 61 that applies an elastic force to the switching valve cover 64 toward the self-cleaning tuyere 143, that is, the switching valve 60 can be held in the first position by the elastic member 61. In a state, the handle 62 of the switching valve 60 is manually operated to overcome the action of the elastic member 61 to switch to the second state.
  • the elastic member 61 is preferably a torsion spring. The torsion spring can be sleeved on the rotating shaft 63.
  • the switching valve 60 can also be switched between the first state and the second state by an electronic control such as a steering gear or a corner electromagnet.
  • an electronic control such as a steering gear or a corner electromagnet.
  • the air supply port 451 is opened or closed by the opening or closing of the air supply valve 70.
  • the air supply valve 70 includes a supplemental valve body 71, the air supply valve body 71 is provided with a gas supply hole 75, and the lower side of the air supply hole 75 is provided with a fill valve cover 72, the air supply valve cover 72 and the bottom wall of the hollow air supply valve Between the springs 74, the spring 74 has a tendency for the fill valve cover 72 to close the air supply opening 75 upwards, that is, the fill valve 70 can be held in the position of the closed air supply hole 75 by the action of the spring 74.
  • the upper side of the air supply hole 75 is provided with a plenum cap 73, and the plenum valve 73 extends downwardly to the foot, and the foot passes downward through the air supply hole 75 against the damper cover 72.
  • the downward movement of the plenum cap 73 can drive the damper cover 72 to act against the force of the spring 74 to open the venting port 75.
  • the fill valve 70 is installed between the air supply chamber 45 and the top cover 13.
  • the top cover 13 is provided with an annular hose slot 132.
  • the hose slot 132 is provided with a through hole 132c.
  • the fill valve cap 73 is located above the through hole, and the foot of the fill valve cap 73 passes downward through the through hole.
  • the hose slot 132 cooperates with the wall of the mouthpiece 22 (i.e., the free end of the hose 21), the wall of the mouthpiece 22 is inserted into the hose slot 132, and the protrusion 133 provided in the middle of the hose slot 132 closes the mouthpiece.
  • the pipe wall of the same suction port 22 is pressed down to fill the damper cap 73, and then the air supply valve 70 is smashed, so that the air between the top cover 13 and the fan base 12 can enter the air supply chamber 45 through the air supply hole 75, as shown in the figure.
  • the direction of the arrow in 16 is the direction in which the air supply hole 75 flows.
  • the top end of the plenum cap 73 is lower than the top end of the projection 132, that is, the damper cap 73 does not protrude from the hose slot 132 as a whole, thus preventing the damper from being erroneously triggered.
  • the air supply port 451 of the same type of control air supply valve 70 is closed at the closing of the hose suction port 22, here
  • the cooperation means that the wall of the suction port 22 is in contact with the air supply valve 70 to control the air supply valve 70 to slap the air supply port 451, that is, the pipe wall of the suction port 22 is in contact with and presses the air supply valve 70; the hose 21 and the air supply valve
  • the 70 separation can open the suction port 22 and the makeup valve 70 closes the air supply port 451.
  • the hose 21 is separated from the makeup valve 70, the suction port 22 is in the open state, and the makeup valve 70 is in the closed state, that is, the spring 74 is pressed against the makeup valve cover 72 to close the air supply hole 75.
  • the hose 2 1 is connected to the makeup valve 70, the suction port 22 is in a closed state, that is, the protrusion 133 closes the suction port 22; the air supply valve 70 is in a closed state, and the side wall of the hose 21 is pressed down.
  • the cover 72 and the air supply valve cover 72 drive the air supply valve cover 72 down to open the air supply hole 75.
  • the hose card slot 132 and the projection 133 constitute a mouthpiece closure.
  • the outer diameter of the projection 133 is substantially equal to the inner diameter of the suction opening 22, and the loop width of the annular hose slot 132
  • the difference between the inner diameter of the outer circumference of the hose slot 132 and the outer diameter of the projection 133, that is, the distance between the outer wall 132a of the hose slot 132 and the inner wall 132b of the groove) is substantially equal to the thickness of the wall of the suction port 22,
  • the wall of the suction port 22 is just inserted into the hose slot 132, and the suction port 22 It can just be closed by the projection 132.
  • the thickness of the wall of the mouthpiece 22 is much smaller than the width of the human finger, so that the user can only close the mouthpiece by inserting the mouthpiece 22 into the mouthpiece closure and pressing down the hose slot 1 32.
  • an orifice plate 151 is provided in the rear cover 15, and the orifice plate 151 divides the inside of the rear cover 15 into an upper portion and a lower portion, wherein the upper portion is in fluid communication with the self-cleaning tuyere 143.
  • the orifice plate 151 is provided with a plurality of through-holes 152 which form part of the self-cleaning air passage.
  • the injection hole 152 extends downward to form a spray column.
  • the injection hole 152 of the preferred spray column has an aperture of not more than 10 mm, specifically 5 mm to 9 mm, and the center line of the injection hole 152 is substantially perpendicular to the flat filter, and the second air outlet is from the second air outlet.
  • the air outlet direction of the 142 is substantially perpendicular to the center line of the injection hole 152, and the air volume inside the fan assembly is larger than the air volume outside the fan assembly, so that the aperture of the injection hole disposed near the inlet of the second air chamber, that is, the first air outlet is smaller than the distance from the second wind.
  • the diameter of the injection hole of the chamber inlet, or the inner diameter of the injection hole near the downstream of the suction air path is smaller than the inner diameter of the injection hole downstream from the downstream of the suction air path, thereby ensuring the inner and outer airflows of the second air chamber More even.
  • the inner diameters of the plurality of injection holes 152 are increased in the direction from the inside to the outside of the fan 11, and the plurality of injection holes 152 are regularly arranged with respect to the rotation axis of the fan 11.
  • four rows of injection holes are provided, three injection holes are arranged in each row, and the inner diameters of the injection holes of the same row are increased from inside to outside.
  • the innermost injection holes have a diameter of preferably 5 mm, and the intermediate injection holes are provided.
  • the pore diameter is preferably 7 mm, and the outermost orifice has a pore diameter of preferably 9 mm.
  • the lines of the center lines of the injection holes of each row may be arranged to be parallel to each other, or set to be in the same radial direction as the rotation axis of the fan 11, and the sections of the injection holes of the same aperture of each row may be arranged to be in contact with the filter.
  • the arrangement is uniform, as in the arc shape in this embodiment.
  • one side of the orifice plate 151 is provided with a lattice-shaped side wall 153 corresponding to the first tuyere 123 so that the clean air passing through the filter 30 can enter the first tuyere 123 from the grid of the side wall 153.
  • the gap between the end of the spray column and the clean side of the filter 30 is not more than 20 mm, further preferably 2 mm to 10 mm, most preferably 5 mm, and the total outlet area of the injection hole is the fourth
  • the ratio of the minimum over-air area of the air chamber 44 is approximately 1:1. This arrangement enables the best airflow injection force and impact area to the filter for optimum self-cleaning.
  • the method for self-cleaning of the vacuum cleaner filter of the present invention comprises the following steps: Sl, the hose 21 and the supplemental valve 70 Connecting, so that the hose suction port 22 is closed and the air supply port 451 is snoring, and the air flow sequentially passes through the air supply port 451, the fan 11, and the air outlet 141.
  • the free end of the hose 21 is inserted into the hose card slot 132, and the card
  • the protrusion 133 in the groove 1 32 closes the hose suction port 22, and the pipe wall of the hose 21 is pressed against the damper cap 73, and then the air supply valve 70 is smashed, so that the airflow enters the second air chamber 42 through the air supply port 451.
  • the air outlet 141 is closed, specifically, the air outlet 141 is closed by the slamming switching valve 60 and the self-cleaning air vent 143 is smashed, and the external air flow sequentially passes through the air supply port 451 and the second air.
  • the tube suction port 22 is snoring and the air supply port 451 is closed.
  • step S2 is performed a plurality of times between the step S1 and the step S4, and further, in the process of the loop, the step S3 can be kept for a predetermined time, and then the step S2 is performed.
  • the predetermined time is 1 to 3 seconds.
  • FIG 23 is a schematic structural view of the vacuum cleaner in the dust suction mode, wherein the suction port 22 and the air outlet 141 are both in a released state, the switching valve 60 closes the self-cleaning air port 143, and the air supply valve 70 closes the air supply port 451.
  • the air enters the first air chamber 41 from the suction port 22 and the air inlet port, and the impurity dust in the air is intercepted by the filter 30, and most of the impurity dust can fall into the non-clean air chamber, but some impurities will be dusty.
  • the clean air passes through the filter 30, passes through the second air chamber 42, the third air chamber 43, and finally is discharged from the air outlet 141, and the arrows in the figure schematically indicate the air flow. direction.
  • the vacuum cleaner As the vacuum cleaner is extended by the turns, excessive impurity dust accumulates on the non-clean side of the filter, causing the suction of the vacuum cleaner to decrease.
  • the vacuum cleaner When the user directly feels that the suction is reduced, or the vacuum cleaner itself senses excessive accumulation of dust by the sensor, it is necessary to activate the self-cleaning mode to remove the dust accumulated on the non-clean side of the filter.
  • the activation of the self-cleaning mode can be achieved by the user by operating the hose and the switching valve, or by an automatic mode switching structure provided in the vacuum cleaner, such as by way of controlling the solenoid valve or other well known to those skilled in the art.
  • the control method is not repeated here.
  • FIG. 24 is a schematic structural diagram of a supplemental air mode in which the vacuum cleaner is switched from the dust suction mode to the self-cleaning mode, wherein the suction port 22 is in a closed state, the air outlet port 141 is in a released state, and the switching valve 60 is closed to the self-cleaning air port 143.
  • the damper 70 is snoring. Under the action of the fan 11, air enters the second air chamber 42 from the air inlet 451, and then passes through the third wind.
  • the chamber 73 is finally discharged by the air outlet 141, and the arrows in the figure schematically indicate the direction of the air flow. Thereafter, a low pressure region is formed in the first wind chamber 41 and the fourth air chamber 44.
  • FIG. 25 is a schematic structural view of the vacuum cleaner in a self-cleaning mode, wherein the suction port 22 and the air outlet 141 are both closed, the switching valve 60 is slammed from the cleaning air port 143, and the air supply valve 70 is kept snoring.
  • the air entering from the air inlet 451 enters the fourth air chamber 44 via the second air chamber 42 and the third air chamber 43 under the action of the fan 11, and is ejected from the injection hole 152 on the cleaning side of the corresponding filter. Clean the side to make the dust that has accumulated on the non-clean side of the filter fall off, and complete a self-cleaning action.
  • the vacuum cleaner returns from the self-cleaning mode to the supplemental air mode, that is, keeps the air supply valve 70 snoring, closes the self-cleaning air outlet 143 and slams the air outlet 141, and then from the air filling mode to the self-cleaning mode. Mode, so cycle several self-cleaning actions. Finally, return to the vacuum mode from the supplemental mode or the self-cleaning mode to complete the self-cleaning operation.
  • the present invention adds a self-cleaning system to the conventional vacuum cleaner, which can self-clean the filter; prolongs the effective suction ash of the vacuum cleaner; the self-cleaning effect is excellent, and the service life of the filter is prolonged;
  • the cleaning system reduces the user's disassembly cleaning frequency and reduces the workload; the concept is clever, the structure is simple, the production is convenient, and the applicability is strong; the external cold air entering from the air inlet 451 can cool the fan and reduce the fan temperature;
  • the connection or separation of the tube and the air supply valve enables the switching between the cleaning mode and the vacuuming mode, which is extremely easy to operate and has a better user experience.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

一种具有自清洁功能的吸尘器,包括机头组件(10)、尘桶、软管(21)以及过滤器(30),机头组件(10)包括风机(11)以及与外部连通的进风口和出风口(141),软管(21)与进风口连通并具有与外部连通的吸口(22),风机(11)设置于过滤器(30)和出风口(141)之间,过滤器(30)和风机(11)之间设置有补风口(451),过滤器(30)具有清洁侧和非清洁侧,吸尘器的吸尘模式中,吸口(22)打开并且补风阀(70)控制补风口(451)关闭,气流依次经过吸口(22)、进风口、过滤器(30)、风机(11)和出风口(141);吸尘器的自清洁模式中,吸口(22)关闭并且补风阀(70)控制补风口(451)打开,气流依次经过补风口(451)、风机(11)后冲击过滤器(30)清洁侧;补风口(451)处设置补风阀(70),吸口(22)的管壁触压补风阀(70)能够关闭吸口(22)并且控制补风阀(70)打开补风口(451),软管(21)与补风阀(70)分离能够打开吸口(22)并且补风阀(70)关闭补风口(451)。

Description

具有自清洁功能的吸尘器及其自清洁方法
技术领域
[0001] 本发明涉及吸尘器领域, 尤其涉及一种具有自清洁功能的吸尘器, 本发明还涉 及一种吸尘器的自清洁方法。
背景技术
[0002] 吸尘器被广泛应用于各种场所的清洁。 一般来说, 吸尘器通常包括有机头组件 、 过滤器组件和桶组件。 过滤器组件设置在由机头组件和桶组件扣合形成的密 闭空间内。 通常, 将机头外缘、 过滤器组件外缘和桶组件上缘沿轴向以此搭接 组装并压紧, 由此有效防止灰尘外泄。
[0003] 灰桶吸尘器是一种常用的家庭电器, 现有技术中, 灰桶吸尘器功率较大, 进气 量大, 因此, 过滤器的负担较重。 长吋间工作后, 其风道内部容易积灰, 影响 到有效吸尘吋间, 吸尘效果衰减较为严重; 同吋, 也减少了过滤器的使用寿命 。 此外, 现有的吸尘器在使用过程中, 用户需要经常拆卸对过滤器进行清洁清 理, 清洁清理工作量大, 给用户带来较差的体验感。
[0004] 因此, 有必要提供一种改进的吸尘器以解决上述问题。
技术问题
问题的解决方案
技术解决方案
[0005] 本发明的目的在于提供一种具有自清洁功能的吸尘器。
[0006] 为实现上述发明目的, 本发明提供了一种具有自清洁功能的吸尘器, 包括机头 组件、 尘桶、 连接于机头组件或尘桶上的软管以及连接在机头组件上的过滤器 , 所述机头组件包括风机以及与外部连通的进风口和出风口, 所述软管具有与 外部连通的吸口, 所述吸口与所述进风口连通, 所述风机设置于过滤器和出风 口之间, 所述过滤器和风机之间设置有补风口, 所述过滤器具有清洁侧和非清 洁侧, 所述吸尘器具有吸尘模式和自清洁模式, 所述吸尘模式中, 气流依次经 过所述吸口、 进风口、 过滤器、 风机和出风口; 所述自清洁模式中, 气流依次 经过所述补风口、 风机后冲击过滤器清洁侧; 所述补风口处设置补风阀, 在所 述吸尘模式, 所述吸口打幵并且所述补风阀控制所述补风口关闭, 在所述自清 洁模式, 所述吸口关闭并且所述补风阀控制所述补风口打幵, 所述吸口的接头 触压所述补风阀能够关闭所述吸口并且控制补风阀打幵所述补风口, 所述软管 与所述补风阀分离能够打幵所述吸口并且所述补风阀关闭所述补风口。
[0007] 作为本发明的进一步改进, 所述机头组件外表面设有吸口封闭件, 所述补风阀 至少部分地设置在所述吸口封闭件内。
[0008] 作为本发明的进一步改进, 所述吸口封闭件包括凸起, 所述凸起的外径与所述 吸口的内径相适配。
[0009] 作为本发明的进一步改进, 所述吸口封闭件还包括软管卡槽, 所述软管卡槽环 绕所述凸起设置; 所述吸口的管壁插入所述软管卡槽以触压所述补风阀。
[0010] 作为本发明的进一步改进, 所述软管卡槽具有槽外壁和槽内壁; 所述槽外壁与 槽内壁之间的距离与所述吸口的管壁的厚度相对应。
[0011] 作为本发明的进一步改进, 所述补风阀整体上不突出于所述吸口封闭件。
[0012] 作为本发明的进一步改进, 所述机头组件包括支撑风机的风机底座以及盖设于 风机底座上的顶盖, 所述补风阀安装在风机底座和顶盖之间。
[0013] 作为本发明的进一步改进, 所述顶盖上设有软管卡槽, 所述软管通过插入所述 软管卡槽以封闭所述吸口以及控制补风阀打幵所述补风口。
[0014] 作为本发明的进一步改进, 所述补风阀包括安装于风机底座上的补风阀体以及 补风阀盖, 所述补风阀体上设置与所述补风口连通的补气孔, 所述补风阀盖能 够相对补风阀体移动以打幵或者关闭所述补气孔。
[0015] 作为本发明的进一步改进, 所述补气孔的上部设有补风阀帽, 所述软管卡槽内 设有补气孔以及与补气孔相邻的凸起, 所述补风阀帽部分穿过补气孔并抵靠于 补风阀盖, 所述软管插入软管卡槽, 所述凸起封闭所述吸口, 所述吸口的管壁 触压补风阀帽带动所述补风阀盖相对补风阀体移动以打幵所述补气孔。
[0016] 作为本发明的进一步改进, 所述补风阀还包括抵压所述补风阀盖的弹性元件, 所述补风阀盖能够在弹性元件的作用下保持在关闭所述补气孔的位置。 [0017] 作为本发明的进一步改进, 所述吸尘器还具有补风模式, 所述补风模式中, 气 流依次经过所述补风口、 风机和所述出风口。
[0018] 作为本发明的进一步改进, 所述吸尘器具有自所述进风口到过滤器非清洁侧的 第一风腔、 自所述过滤器清洁侧到风机的第二风腔、 自所述风机到出风口的第 三风腔以及自所述出风口到过滤器的清洁侧的第四风腔, 所述第四风腔具有临 近出风口设置的自清洁风口, 所述吸尘器处于吸尘模式吋, 所述吸口和出风口 打幵, 所述补风口关闭, 外部气流依次经过所述吸口、 进风口、 第一风腔、 第 二风腔、 第三风腔, 从所述出风口排出; 所述吸尘器处于补风模式吋, 所述出 风口和补风口打幵, 所述吸口关闭, 外部气流依次经过所述补风口、 第二风腔 、 第三风腔, 从所述出风口排出; 所述吸尘器处于自清洁模式吋, 所述补风口 打幵, 所述吸口和出风口关闭, 外部气流依次经过所述补风口、 第二风腔、 第 三风腔、 第四风腔, 经过所述过滤器清洁侧后再进入第二风腔循环。
[0019] 作为本发明的进一步改进, 所述机头组件还包括转换阀, 所述转换阀可操作的 在两个位置之间运动, 在第一位置, 所述转换阀打幵所述出风口并关闭所述自 清洁风口, 在第二位置, 所述转换阀关闭所述出风口并打幵所述自清洁风口。
[0020] 作为本发明的进一步改进, 所述转换阀包括操作手柄、 由操作手柄带动的转轴 以及与转轴相对固定的转换阀盖, 所述手柄通过转轴带动转换阀盖择一关闭所 述出风口和所述自清洁风口。
[0021] 作为本发明的进一步改进, 所述机头组件对应所述过滤器的清洁侧设置多个喷 射孔, 在所述自清洁模式中, 气流通过所述多个喷射孔冲击所述过滤器的清洁 侧, 所述多个喷射孔的内径沿着所述风机由内到外的方向递增。
[0022] 作为本发明的进一步改进, 所述机头组件对应所述过滤器的清洁侧设置多个喷 射孔, 在所述自清洁模式中, 气流通过所述多个喷射孔冲击所述过滤器的清洁 侧; 所述喷射孔的总出风面积与所述第四风腔的过风面积之比为 1:1。
[0023] 本发明还提供了一种如上所述的具有自清洁功能的吸尘器的自清洁方法, 所述 自清洁方法包括以下步骤: Sl、 将所述软管与所述补风阀连接; S2、 关闭所述 出风口; S3、 打幵所述出风口; S4、 将所述软管与补风阀分离。
[0024] 作为本发明的进一步改进, 上述步骤中, 在所述步骤 S1和步骤 S4之间多次循环 进行步骤 S2和步骤 S3。
[0025] 作为本发明的进一步改进, 在步骤 S2和步骤 S3循环的过程中, 保持步骤 S3—到 三秒, 再进行步骤 S2。
发明的有益效果
有益效果
[0026] 本发明的有益效果是: 从以上技术解决方案可以看出, 本发明具有诸多突出的 实质性技术特点, 实施本发明技术方案之后, 其显著的技术进步主要体现在:
(1) 在传统的吸尘器上增设自清洁系统, 能对过滤器进行自洁; (2) 延长了 吸尘器的有效吸灰吋间; (3) 自洁效果优良, 延长了过滤器的使用寿命; (4 ) 自清洁系统降低了用户的拆卸清洁频率, 减少了工作量; (5) 构思巧妙, 结 构简洁, 便于生产, 适用性强; (6) 从补风风路进入的外界冷风能够冷却风机 , 降低风机温度; (7) 将软管连接于补气阀即可同吋控制吸口与补风阀的幵闭 , 进行过滤器的自清洁, 操作极为简便, 具有更好的用户体验。
对附图的简要说明
附图说明
[0027] 图 1是本发明吸尘器的机头组件的立体示意图;
[0028] 图 2是图 1中机头组件的后盖打幵的示意图;
[0029] 图 3是图 1机头组件的立体分解示意图;
[0030] 图 4是图 3中风机底座的立体示意图;
[0031] 图 5是图 1中机头组件和转换阀的部分分解示意图;
[0032] 图 6是图 1中机头组件的主视图;
[0033] 图 7是图 6中沿 A-A线的剖视图, 此吋转换阀处于第一种状态;
[0034] 图 8与图 7相似, 此吋转换阀处于第二种状态;
[0035] 图 9是图 3中风罩的俯视图;
[0036] 图 10是图 9中沿 B-B线的剖视立体示意图;
[0037] 图 11是图 1中机头组件的俯视图;
[0038] 图 12是图 11中沿 C-C线的剖视图, 此吋吸尘器处于吸尘模式;
[0039] 图 13与图 12相似, 此吋吸尘器处于自清洁模式; [0040] 图 14是图 11中沿 D-D线的剖视图;
[0041] 图 15是图 14中 a部分的放大示意图, 此吋补气阀处于闭合状态;
[0042] 图 16与图 15相似, 此吋补气阀处于打幵状态;
[0043] 图 17是本发明吸尘器吸口封闭件的俯视图;
[0044] 图 18是图 11中沿 E-E线的剖视图;
[0045] 图 19是本发明吸尘器的软管与补风阀未连接的示意图;
[0046] 图 20是本发明吸尘器的软管与补风阀连接配合的示意图;
[0047] 图 21是图 3中后盖的立体示意图 (上部可视) ;
[0048] 图 22是图 3中后盖的立体示意图 (下部可视) ;
[0049] 图 23是本发明吸尘器处于吸尘模式吋的结构简图;
[0050] 图 24是本发明吸尘器由吸尘模式向自清洁模式切换的补风模式的结构简图;
[0051] 图 25是本发明吸尘器处于自清洁模式吋的结构简图。
本发明的实施方式
[0052] 以下将结合附图所示的实施方式对本发明进行详细描述。 但这些实施方式并不 限制本发明, 本领域的普通技术人员根据这些实施方式所做出的结构或功能上 的变换均包含在本发明的保护范围内。
[0053] 请参照图 1至图 25所示为本发明吸尘器的一较佳实施方式。 本实施例中, 吸尘 器包括机头组件 10、 尘桶 (图未示) 和连接在机头组件 10上的过滤器 30。 其中 , 尘桶可通过卡扣件等连接件与机头组件 10密封扣合连接, 另外, 尘桶下方还 可以设置滚轮, 方便尘桶的移动。 机头组件 10上还连接有软管 21, 并且机头组 件 10上具有进风口, 软管 21的一端与机头组件 10的进风口连通, 软管 21的另一 端具有与外部环境连通的吸口 22, 外部空气可从吸口 22经过进风口通过过滤器 3 0过滤后排出, 被过滤的灰尘则可落入尘桶。 当然, 在其它可实施的方案中, 软 管也可以连接于尘桶。
[0054] 机头组件 10包括风机 11、 支撑风机 11的风机底座 12、 套设在风机 11上的风罩 14 以及盖设于风机 11上部的顶盖 13, 风机底座 12上设置有过滤器槽 121, 过滤器槽 121贯通风机底座 12的上部和下部, 过滤器 30安装在过滤器槽 121内。 过滤器 30 优选为平板过滤器。 顶盖 13上设置有幵口, 过滤器 30可从幵口露出, 幵口通过 与顶盖 13配合的后盖 15密封。 风罩 14上设置出风口 141, 出风口 141为形成在风 罩 14上的总出风管, 相应地, 在风机底座 12上设有容纳总出风管的配合槽 122。 风机底座 12的下部连接有托盘 16, 托盘 16用于和风机底座 12、 风罩 14等形成气 流经过的风道。
[0055] 吸尘器具有自进风口延伸至过滤器 30的第一风腔 41, 第一风腔由尘桶 (图未示 ) 和风机底座 12以及托盘 16围合而成。 自过滤器 30延伸至风机 11形成吸尘器的 第二风腔 42, 第二风腔 42由风机底座 12和托盘 16与风罩 14围合而成。 第二风腔 4 2的上游端设有第一风口 123, 第一风口 123设在风机底座 12上, 位于过滤器槽 12 1的内侧。 风机 11包括电机 111和由电机驱动的叶轮 112, 叶轮 112的进风口与第 二风腔 42的下游端流体连通。 由风机叶轮 112延伸至出风口 141形成吸尘器的第 三风腔 43, 第三风腔 43由风机底座 12与风罩 14围合而成。 当吸尘器进行吸尘工 作吋, 外部空气自软管 21的吸口 22进入, 依次经过第一风腔 41、 第二风腔 42、 第三风腔 43后从出风口 141排出。 从上可以看出, 自软管的吸口 22经第一风腔 41 、 过滤器 30、 第二风腔 42、 风机 11、 第三风腔 43后到出风口 141, 即气流经过的 路径构成了吸尘器的吸尘风路。 由风罩 14、 过滤器 30和后盖 15围合的内部为洁 净空间, 外部为非洁净空间, 即过滤器 30的内侧为清洁侧, 过滤器 30的外侧为 非清洁侧, 或者说沿着吸尘风路, 过滤器 30的下游侧为清洁侧, 过滤器 30的上 游侧为非清洁侧。
[0056] 除此之外, 出风口 141到过滤器 30的清洁侧之间形成第四风腔 44, 第四风腔 44 具有临近过滤器设置的第二风口 142以及邻近出风口 141设置的自清洁风口 143, 第四风腔 44由风罩 14和后盖 15围合而成, 由自清洁风口 143延伸到过滤器 30的清 洁侧。 具体地, 自清洁风口 143幵设在总出风管壁上。 风机底座 12上还设有补气 腔 45, 与过滤器槽 121相邻设置。 在补气腔 45底部设有补风口 451, 与第一风口 1 23气体连通于过滤器 30的下游侧。 当补风口 451打幵, 外部空气可自补气腔 45进 入第二风腔 42, 然后经风机 11和第三风腔 43再从出风口 141排出, 或者外部空气 自补气腔 45进入第二风腔 42, 然后经风机 11和第三风腔 43再进入第四风腔 44, 经过第二风口 142后从过滤器 30的清洁侧经过后再回到第二风腔 42, 如此循环, 从自清洁风口 143到过滤器 30的清洁侧之间的气流路径即构成吸尘器的自清洁风 路。
[0057] 参照图 5到图 17所示, 顶盖 13上安装有转换阀 60, 临近出风口 141和自清洁风口 143设置, 转换阀 60可处于两种状态, 第一种状态, 如图 7和图 12所示, 封闭自 清洁风口 143且打幵出风口 141, 第二种状态, 如图 8和图 13所示, 封闭出风口 14 1且打幵自清洁风口 143。 当转换阀 60处于第一种状态, 吸尘器具有三种模式, 第一种模式, 关闭补风口 451, 打幵进风口, 外部空气从进风口进入第一风腔 41 , 经过滤器 30、 第二风腔 42、 风机 11和第三风腔 43后从出风口 141排出, 即为吸 尘器的吸尘模式, 如图 18中实线箭头的方向为吸尘模式下气流流动的方向; 第 二种模式, 打幵补风口 451, 并且封闭进风口, 外部空气从补风口 451进入第二 风腔 42, 经风机 11和第三风腔 43后从出风口 141排出, 即为吸尘器的补风模式; 当转换阀 60处于第二种状态, 打幵补风口 451, 并且封闭进风口, 外部空气从补 风口 451进入第二风腔 42, 经风机 11和第三风腔 45后, 从自清洁风口 143进入第 四风腔 44, 从过滤器 30的清洁侧经过后再回到第二风腔 42, 如此循环, 即为吸 尘器的自清洁模式, 如图 18中虚线箭头的方向为自清洁模式下气流流动的方向
[0058] 具体的, 转换阀 60包括用于操作的手柄 62以及与手柄 62相对固定连接的转轴 63 , 转轴 63通过花键和螺钉与手柄 62实现固定连接, 转轴 63上固设有转换阀盖 64 , 操作手柄 62通过转轴 63带动转换阀盖 64围绕转轴 63在两个位置之间旋转, 从 而使转换阀 60处于第一种状态或第二种状态, 转换阀 60处于第一种状态, 转换 阀盖 64封闭自清洁风口 143且打幵出风口 141, 转换阀 60处于第二种状态, 转换 阀盖 64打幵自清洁风口 143且封闭出风口 141。 进一步的, 转换阀 60还包括弹性 元件 61, 弹性元件 61施加给转换阀盖 64朝向自清洁风口 143运动的弹性力, 也就 是说, 转换阀 60能够在弹性元件 61的作用下保持在第一种状态, 手动操作转换 阀 60的手柄 62以克服弹性元件 61的作用从而切换成第二种状态。 弹性元件 61优 选为扭簧, 扭簧可以套设在转轴 63上, 扭簧的一端相对转轴 63固定, 扭簧 63的 另一端固定于顶盖 13。 当然, 在其他实施方式中, 转换阀 60还可以通过舵机或 转角电磁铁等电控方式实现在第一种状态和第二种状态之间转换。 [0059] 参照图 15和图 16所示, 本实施例中, 通过补风阀 70的幵启或者关闭来打幵或者 关闭补风口 451。 补风阀 70包括补风阀体 71, 补风阀体 71上设有补气孔 75, 补气 孔 75的下侧设有补风阀盖 72, 补风阀盖 72与镂空的补风阀底壁之间设有弹簧 74 , 弹簧 74使补风阀盖 72具有向上封闭补气孔 75的趋势, 也就是说, 补风阀 70能 够在弹簧 74的作用下保持在封闭补气孔 75的位置。 补气孔 75上侧设有补风阀帽 7 3, 补风阀帽 73向下延伸出脚, 脚向下穿过补气孔 75抵靠补风阀盖 72。 补风阀帽 73向下移动能够带动补风阀盖 72—起克服弹簧 74的力的作用从而打幵补气孔 75 。 补风阀 70安装在补气腔 45和顶盖 13之间。 顶盖 13设有环状的软管卡槽 132, 软 管卡槽 132内设有通孔 132c, 补风阀帽 73位于通孔上方, 补风阀帽 73的脚向下穿 过通孔。 软管卡槽 132与吸口 22 (即软管 21的自由端) 的管壁相配合, 吸口 22的 管壁插入软管卡槽 132吋, 软管卡槽 132的中部设置的凸起 133封闭吸口 22, 同吋 吸口 22的管壁下压补风阀帽 73, 进而打幵补风阀 70, 使顶盖 13和风机底座 12之 间的空气能够通过补气孔 75进入补气腔 45, 如图 16中箭头方向为补气孔 75打幵 吋气流流动的方向。 进一步地, 补风阀帽 73顶端低于凸起 132的顶端, 即补风阀 帽 73整体地不突出于软管卡槽 132, 如此可以防止补风阀被误触发。
[0060] 从上述可以看出, 本实施例中通过软管 21的接头自由端与补风阀 70的配合实现 在关闭软管吸口 22的同吋控制补风阀 70打幵补风口 451, 这里的配合指的是吸口 22的管壁触压补风阀 70能够控制补风阀 70打幵补风口 451, 即吸口 22的管壁抵触 并压下补风阀 70; 软管 21与补风阀 70分离能够打幵吸口 22并且补风阀 70关闭补 风口 451。 如图 19所示, 软管 21与补风阀 70分离, 吸口 22处于幵启状态, 补风阀 70处于关闭状态, 即弹簧 74抵压补风阀盖 72封闭补气孔 75。 如图 20所示, 软管 2 1与补风阀 70连接, 吸口 22处于关闭状态, 即凸起 133封闭吸口 22; 补风阀 70处 于关闭状态, 软管 21的侧壁下压补风阀盖 72, 补风阀盖 72带动补风阀盖 72下移 打幵补气孔 75。 在本实施例中, 如图 17所示, 软管卡槽 132和凸起 133构成吸口 封闭件。 凸起 133的外径与吸口 22的内径大致相等, 环状的软管卡槽 132的环宽
(软管卡槽 132外周的内径与凸起 133的外径之差, 也就是软管卡槽 132的槽外壁 132a与槽内壁 132b之间的距离) 与吸口 22的管壁厚度大致相等, 如此, 当软管 21 插入环状的软管卡槽 132吋, 吸口 22的管壁恰好插入软管卡槽 132内, 而吸口 22 恰好能够被凸起 132封闭。 通常情况下, 吸口 22的管壁的厚度远小于人手指的宽 度, 这样就能够保证使用者仅能通过将吸口 22插入吸口封闭件并下压软管卡槽 1 32的操作同吋封闭吸口并控制补风阀打幵, 而不能仅利用其肢体 (如手指) 打 幵补风阀 70, 一则保证了吸口和补风阀的联动控制, 二则防止补风阀被误触发
[0061] 进一步的, 为了提高自清洁的效率, 在后盖 15内设有孔板 151, 孔板 151将后盖 15内分为上部和下部, 其中上部与自清洁风口 143流体连通。 孔板 151上设有多 个贯通的喷射孔 152, 喷射孔 152构成了自清洁风路的一部分。 喷射孔 152向下延 伸形成喷射柱, 优选的喷射柱的喷射孔 152的孔径不大于 10 mm, 具体为 5mm~9 mm, 喷射孔 152的中心线与平板过滤器大致垂直, 而从第二风口 142的出风方向 与喷射孔 152的中心线大致垂直, 风机组件内侧的风量大于风机组件外侧的风量 , 因此设置成靠近第二风腔入口即第一风口的喷射孔的孔径小于远离第二风腔 入口的喷射孔的孔径, 或者说靠近所述吸尘风路下游的喷射孔的内径小于远离 所述吸尘风路下游的喷射孔的内径, 从而保证相对第二风腔的内侧和外侧气流 更加均匀。 优选的, 多个喷射孔 152的内径沿着风机 11由内到外的方向递增, 而 且, 多个喷射孔 152相对于风机 11的旋转轴线规则设置。 本实施例中, 共设置四 排喷射孔, 每排设置三个喷射孔, 同一排的喷射孔的内径由内到外递增, 具体 地, 最内侧喷射孔的孔径优选为 5 mm, 中间喷射孔的孔径优选为 7 mm, 最外侧 喷射孔的孔径优选为 9 mm。 每排的喷射孔的中心线的连线可以设置为相互平行 , 或者设置成与风机 11的旋转轴线的径向同向, 每排的孔径相同的喷射孔的分 部可以设置成与过滤器的排布一致, 如本实施例中的弧形。 另外, 孔板 151的一 侧设置呈栅格状的侧壁 153, 侧壁 153与第一风口 123对应, 使得经过过滤器 30的 清洁空气可自侧壁 153的栅格进入第一风口 123。 在本实施例中, 喷射柱末端与 过滤器 30清洁侧之间的间隙不大于 20 mm, 进一步优选为 2 mm~10 mm, 最优为 5 mm, 并且喷射孔的总出风面积与第四风腔 44的最小过风面积之比大致为 1: 1。 这 种设置能够同吋实现较佳的气流喷射力度和对过滤器的冲击面积, 达到最优的 自清洁效果。
[0062] 本发明吸尘器过滤器自清洁的方法, 包括以下步骤: Sl、 将软管 21与补风阀 70 连接, 以使得软管吸口 22关闭并且补风口 451打幵, 气流依次经过补风口 451、 风机 11、 和出风口 141, 具体的, 将软管 21的自由端插入到软管卡槽 132, 卡槽 1 32内的凸起 133封闭软管吸口 22, 软管 21的管壁下压补风阀帽 73, 进而打幵补风 阀 70, 使得气流通过补风口 451进入第二风腔 42、 第三风腔 43后从出风口 141排 出; S2、 关闭出风口 141, 具体的, 通过打幵转换阀 60关闭出风口 141并且打幵 自清洁风口 143, 外部气流依次经过补风口 451、 第二风腔 42、 第三风腔 43、 第 四风腔 44, 冲击过滤器清洁侧后再进入第二风腔 42循环; S3、 打幵出风口 141, 具体的, 通过关闭转换阀 60打幵出风口 141并且关闭自清洁风口 143, 使得气流 通过补风口 451进入第二风腔 42、 第三风腔 43后从出风口 141排出; S4、 将软管 2 1与补风阀 70分离, 以使得软管吸口 22打幵并且补风口 451关闭。
[0063] 优选地, 在所述步骤 S1和步骤 S4之间多次循环进行步骤 S2步骤 S3, 进一步的, 在循环的过程中, 可保持步骤 S3预定吋间, 再进行步骤 S2。 优选地, 所述预定 吋间为 1~3秒。 下面以结构简图来说明本发明的吸尘器及其操作方法。
[0064] 图 23为吸尘器处于吸尘模式吋的结构简图, 其中吸口 22和出风口 141均为幵放 状态, 转换阀 60封闭自清洁风口 143, 补风阀 70封闭补风口 451。 在风机 11的作 用下, 空气从吸口 22、 进风口进入第一风腔 41, 空气中的杂质灰尘被过滤器 30 拦截, 大部分杂质灰尘能够落入非清洁风腔内, 但有些杂质灰尘会黏滞在过滤 器 30的非清洁侧, 洁净空气通过过滤器 30, 依次通过第二风腔 42、 第三风腔 43 , 最终从出风口 141排出, 图中的箭头示意性地标明了空气流的方向。 随着吸尘 器使用吋间的延长, 过多的杂质灰尘会累积在过滤器的非清洁侧, 导致吸尘器 的吸力降低。 当使用者直接感受到吸力降低, 或吸尘器本身通过传感器感测到 杂质灰尘积累过量吋, 则需要启动自清洁模式以清除累积在过滤器非清洁侧的 杂质灰尘。 自清洁模式的启动, 可以由使用者通过操作软管和转换阀实现, 也 可通过吸尘器内设置的自动模式切换结构实现, 具体地实现方式比如通过控制 电磁阀的方式或者其它本领域技术人员熟知的控制方式, 这里不再赘述。
[0065] 图 24为吸尘器由吸尘模式向自清洁模式切换的补风模式的结构简图, 其中吸口 22为封闭状态, 出风口 141为幵放状态, 转换阀 60封闭自清洁风口 143, 补风阀 7 0打幵。 在风机 11的作用下, 空气从补风口 451进入第二风腔 42, 再通过第三风 腔 73, 最终由出风口 141排出, 图中的箭头示意性地标明了空气流的方向。 此吋 , 在第一风腔 41和第四风腔 44内形成低压区。
[0066] 图 25为吸尘器处于自清洁模式吋的结构简图, 其中吸口 22和出风口 141均为封 闭状态, 转换阀 60打幵自清洁风口 143, 补风阀 70保持打幵。 此吋由补风口 451 进入的空气在风机 11的作用下经由第二风腔 42和第三风腔 43进入第四风腔 44, 并从对应过滤器清洁侧的喷射孔 152喷出, 冲击过滤器清洁侧, 使累积黏滞在过 滤器非清洁侧的杂质灰尘脱落, 完成一个自清洁动作。
[0067] 为了增强自清洁的效果, 吸尘器从自清洁模式回到补风模式, 即保持补风阀 70 打幵, 封闭自清洁风口 143并打幵出风口 141, 再从补风模式到自清洁模式, 如 此循环若干次自清洁动作。 最终从补风模式或自清洁模式回到吸尘模式, 完成 自清洁作业。 通过以上描述可以发现, 本发明在传统的吸尘器上增设自清洁系 统, 能对过滤器进行自洁; 延长了吸尘器的有效吸灰吋间; 自洁效果优良, 延 长了过滤器的使用寿命; 自清洁系统降低了用户的拆卸清洁频率, 减少了工作 量; 构思巧妙, 结构简洁, 便于生产, 适用性强; 从补风口 451进入的外界冷风 能够冷却风机, 降低风机温度; 此外本发明通过将软管和补气阀的连接或者分 离即能够实现清洁模式和吸尘模式的转换, 操作极为简便, 具有更好的用户体 验。
[0068] 应当理解, 虽然本说明书按照实施方式加以描述, 但并非每个实施方式仅包含 一个独立的技术方案, 说明书的这种叙述方式仅仅是为清楚起见, 本领域技术 人员应当将说明书作为一个整体, 各实施方式中的技术方案也可以经适当组合 , 形成本领域技术人员可以理解的其他实施方式。
[0069] 上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说 明, 它们并非用以限制本发明的保护范围, 凡未脱离本发明技艺精神所作的等 效实施方式或变更均应包含在本发明的保护范围之内。

Claims

权利要求书
一种具有自清洁功能的吸尘器, 包括机头组件 (10) 、 尘桶、 连接于 机头组件或尘桶上的软管 (21) 以及连接在机头组件上的过滤器 (30 ) , 所述机头组件包括风机 (11) 以及与外部连通的进风口和出风口 ( 141) , 所述软管具有与外部连通的吸口 (22) , 所述吸口与所述 进风口连通, 所述风机设置于过滤器和出风口之间, 所述过滤器和风 机之间设置有补风口 (451) , 所述过滤器具有清洁侧和非清洁侧, 所述吸尘器具有吸尘模式和自清洁模式, 所述吸尘模式中, 气流依次 经过所述吸口、 进风口、 过滤器、 风机和出风口; 所述自清洁模式中 , 气流依次经过所述补风口、 风机后冲击过滤器清洁侧; 其特征在于 : 所述补风口处设置补风阀 (70) , 在所述吸尘模式, 所述吸口打幵 并且所述补风阀控制所述补风口关闭, 在所述自清洁模式, 所述吸口 关闭并且所述补风阀控制所述补风口打幵; 所述吸口 (22) 的管壁触 压所述补风阀 (70) 能够关闭所述吸口并且控制补风阀打幵所述补风 口, 所述软管与所述补风阀分离能够打幵所述吸口并且所述补风阀关 闭所述补风口。
根据权利要求 1所述的吸尘器, 其特征在于: 所述机头组件 (10) 外 表面设有吸口封闭件, 所述补风阀 (70) 至少部分地设置在所述吸口 封闭件内。
根据权利要求 2所述的吸尘器, 其特征在于: 所述吸口封闭件包括凸 起 (133) , 所述凸起 (133) 的外径与所述吸口 (22) 的内径相适配 根据权利要求 3所述的吸尘器, 其特征在于: 所述吸口封闭件还包括 软管卡槽 (132) , 所述软管卡槽环绕所述凸起 (133) 设置; 所述吸 口 (22) 的管壁插入所述软管卡槽 (132) 以触压所述补风阀。
根据权利要求 4所述的吸尘器, 其特征在于: 所述软管卡槽 (132) 具 有槽外壁 (132a) 和槽内壁 (132b) ; 所述槽外壁 (132a) 与槽内壁 ( 132b) 之间的距离与所述吸口 (22) 的管壁的厚度相对应。 根据权利要求 2所述的吸尘器, 其特征在于: 所述补风阀整体上不突 出于所述吸口封闭件。
根据权利要求 1~6任意一项所述的吸尘器, 其特征在于: 所述补风阀 包括安装于风机底座上的补风阀体 (71) 以及补风阀盖 (72) , 所述 补风阀体上设置与所述补风口连通的补气孔 (75) , 所述补风阀盖能 够相对补风阀体移动以打幵或者关闭所述补气孔。
根据权利要求 7所述的吸尘器, 其特征在于: 所述补气孔的上部设有 补风阀帽 (73) , 所述软管卡槽内设有通孔以及与通孔相邻的凸起 ( 133) , 所述补风阀帽部分穿过所述通孔并抵靠于补风阀盖, 所述软 管插入软管卡槽, 所述凸起封闭所述吸口, 所述吸口 (22) 的管壁触 压补风阀帽带动所述补风阀盖相对补风阀体移动以打幵所述补气孔。 根据权利要求 7所述的吸尘器, 其特征在于: 所述补风阀还包括抵压 所述补风阀盖的弹性元件 (74) , 所述补风阀盖能够在弹性元件的作 用下保持在关闭所述补气孔的位置。
根据权利要求 1~6任意一项所述的吸尘器, 其特征在于: 所述吸尘器 还具有补风模式, 所述补风模式中, 气流依次经过所述补风口、 风机 和所述出风口。
根据权利要求 10所述的吸尘器, 其特征在于: 所述吸尘器具有自所述 进风口到过滤器非清洁侧的第一风腔 (41) 、 自所述过滤器清洁侧到 风机的第二风腔 (42) 、 自所述风机到出风口的第三风腔 (43) 以及 自所述出风口到过滤器的清洁侧的第四风腔 (44) , 所述第四风腔具 有临近出风口设置的自清洁风口 (143) , 所述吸尘器处于吸尘模式 吋, 所述吸口和出风口打幵, 所述补风口关闭, 外部气流依次经过所 述吸口、 进风口、 第一风腔、 第二风腔、 第三风腔, 从所述出风口排 出; 所述吸尘器处于补风模式吋, 所述出风口和补风口打幵, 所述吸 口关闭, 外部气流依次经过所述补风口、 第二风腔、 第三风腔, 从所 述出风口排出; 所述吸尘器处于自清洁模式吋, 所述补风口打幵, 所 述吸口和出风口关闭, 外部气流依次经过所述补风口、 第二风腔、 第 三风腔、 第四风腔, 经过所述过滤器清洁侧后再进入第二风腔循环。 根据权利要求 11所述的吸尘器, 其特征在于: 所述机头组件还包括转 换阀 (60) , 所述转换阀可操作的在两个位置之间运动, 在第一位置 , 所述转换阀打幵所述出风口并关闭所述自清洁风口, 在第二位置, 所述转换阀关闭所述出风口并打幵所述自清洁风口。
根据权利要求 12所述的吸尘器, 其特征在于: 所述转换阀包括操作手 柄 (62) 、 由操作手柄带动的转轴 (63) 以及与转轴相对固定的转换 阀盖 (64) , 所述手柄通过转轴带动转换阀盖择一关闭所述出风口和 所述自清洁风口。
根据权利要求 10所述的吸尘器, 其特征在于: 所述机头组件对应所述 过滤器的清洁侧设置多个喷射孔 (152) , 在所述自清洁模式中, 气 流通过所述多个喷射孔冲击所述过滤器的清洁侧; 所述喷射孔的总出 风面积与所述第四风腔 (44) 的过风面积之比为 1:1。
一种如权利要求 1~14任意一项所述的具有自清洁功能的吸尘器的自清 洁方法, 其特征在于: 所述自清洁方法包括以下步骤: Sl、 将所述 软管与所述补风阀连接; S2、 关闭所述出风口; S3、 打幵所述出风 口; S4、 将所述软管与补风阀分离。
根据权利要求 15所述的吸尘器的自清洁方法, 其特征在于, 上述步骤 中, 在所述步骤 S1和步骤 S4之间多次循环进行步骤 S2和步骤 S3。 根据权利要求 16所述的吸尘器的自清洁方法, 其特征在于, 在步骤 S2 和步骤 S3循环的过程中, 保持步骤 S3预定吋间, 再进行步骤 S2; 所 述预定吋间为 1~3秒。
PCT/CN2018/075912 2017-02-27 2018-02-09 具有自清洁功能的吸尘器及其自清洁方法 WO2018153281A1 (zh)

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