EP2100546A1 - Cordless vacuum cleaner - Google Patents
Cordless vacuum cleaner Download PDFInfo
- Publication number
- EP2100546A1 EP2100546A1 EP08159756A EP08159756A EP2100546A1 EP 2100546 A1 EP2100546 A1 EP 2100546A1 EP 08159756 A EP08159756 A EP 08159756A EP 08159756 A EP08159756 A EP 08159756A EP 2100546 A1 EP2100546 A1 EP 2100546A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- dust
- vacuum cleaner
- suction
- main body
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Images
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
- 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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric 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
- 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
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge type
-
- 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
-
- 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
- A47L9/009—Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
-
- 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
- A47L9/02—Nozzles
-
- 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
-
- 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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
- A47L9/2884—Details of arrangements of batteries or their installation
Definitions
- the present invention relates to a vacuum cleaner, and more particularly, to a cordless vacuum cleaner.
- Vacuum cleaners generally draw in dust-laden air from surfaces being cleaned, using the vacuum pressure of vacuum suction motors in cleaner main bodies, and dust-collectors of vacuum cleaners collect dust.
- cleaner main bodies include power supply devices, power cords of which are connected to wall sockets to receive power sources.
- Movement of cleaners is restricted by limitations on the length of the power cord, so users may need to connect the power cord to a wall socket in each room whenever they clean a room, which causes user inconvenience.
- cordless vacuum cleaners have been developed using a battery charging method. As such cordless vacuum cleaners do not require power cords, there is no limitation on the movement of vacuum cleaners due to the limited length of power cords, so users can easily perform cleaning anywhere.
- batteries chargeable with direct current (DC) power source may be used only for approximately 10 minutes. Additionally, the suction force of motors driven by the DC power source is less than that of wired vacuum cleaners used while being directly connected to an alternating current (AC) power source, so it is difficult to draw in large dust.
- DC direct current
- an aspect of the present invention is to provide a cordless vacuum cleaner having an improved structure which enables the suction force of the vacuum cleaner to be increased.
- a cordless vacuum cleaner including a main body including a chargeable battery and a first suction unit operated by the chargeable battery; and a suction nozzle assembly including a suction port connected to the main body to draw in dust from a surface being cleaned, and a second suction unit to force dust-laden air drawn in through the suction port to flow towards the main body.
- the first suction unit may be a direct current (DC) vacuum suction motor
- the second suction unit may be an air pump system.
- DC direct current
- the air pump system may include a pump housing including an inlet connected to the suction port and an outlet connected to the main body; an impeller which is rotatably mounted inside the pump housing; and a driving motor to cause the impeller to rotate.
- the driving motor may be operated by the chargeable battery.
- the main body may further include a power unit in which the first suction unit is mounted; and a cyclone dust-collecting device in which dust is collected by a whirling air current.
- the cyclone dust-collecting device may include a cyclone dust-collecting unit into which air is drawn in via the suction nozzle assembly while tending towards one side of the cyclone dust-collecting unit; and a dust receptacle in which dust separated by the cyclone dust-collecting unit is collected.
- the cyclone dust-collecting unit may be connected to the first suction unit via two end openings of an exhaust pipe having a plurality of pores formed on an outer circumference thereof.
- the cyclone dust-collecting unit and dust receptacle may have wall surfaces formed of transparent material.
- the main body may further include a first body in which the power unit and cyclone dust-collecting device are mounted; a second body attached to a bottom portion of the first body, the second body having a traveling unit; and a bumper unit disposed between the first body and second body.
- the bumper unit may include a bumper frame mounted rotatably to the first body and second body; a plurality of rollers disposed facing the second body to reduce friction between the second body and the bumper frame while rotating; and an elastic band attached around an outer circumference of the bumper frame.
- the elastic band may be formed in the shape of a loop.
- both the air pump system mounted in the suction nozzle assembly and the DC vacuum suction motor mounted in the main body are able to drawn in dust-laden air, so it is possible to increase the dust-collecting efficiency of the cordless vacuum cleaner.
- the flow rate of dust flowing into the vacuum cleaner may increase so that the rotation force of air in the cyclone dust-collecting device may also increase. Accordingly, dust may be centrifugally separated with greater efficiency.
- FIG. 1 is a perspective view of a cordless vacuum cleaner according to an exemplary embodiment of the present invention
- FIG. 2 is a front view of a main body of a cordless vacuum cleaner according to an exemplary embodiment of the present invention
- FIG. 3 is an explosive, perspective view of the main body shown in FIG. 2 ;
- FIG. 4 is a plane view of the main body shown in FIG. 2 ;
- FIG. 5 is a front sectional view of the main body shown in FIG. 2 ;
- FIG. 6 is a side sectional view of the main body shown in FIG. 2 ;
- FIG. 7 is a bottom view of a first body of a main body of a cordless vacuum cleaner according to an exemplary embodiment of the present invention.
- FIG. 8 is a side sectional view of a suction nozzle assembly of a cordless vacuum cleaner according to an exemplary embodiment of the present invention.
- a cordless vacuum cleaner according to an exemplary embodiment of the present invention includes a main body 100 and a suction nozzle assembly 200.
- the main body 100 includes a first body 110, a second body 120, and a bumper unit 130, which is disposed between the first body 110 and second body 120.
- the first body 110 has a hemispherical shape, as shown in FIGS. 1 and 2 , and includes a power unit 111 and a cyclone dust-collecting device 112, as shown in FIG. 3 .
- the power unit 111 may desirably be disposed in the rear of the main body 100.
- the power unit 111 includes a chargeable battery 101 and a first suction unit 102, as shown in FIG. 3 .
- the first suction unit 102 is operated by the power source supplied by the chargeable battery 101, and may be a DC vacuum suction motor operated by a direct current (DC) power source from the chargeable battery 101.
- DC direct current
- the power unit 111 may include a locking unit 111a which is able to lock or unlock the cyclone dust-collecting device 112.
- the locking unit 111a may be variously configured, so the present invention is equally applicable to any unit capable of locking or releasing the cyclone dust-collecting device 112 by a simple operation of pressing a button.
- the cyclone dust-collecting device 112 is mounted in the front of the first body 110.
- the cyclone dust-collecting device 112 includes a cyclone dust-collecting unit 113, a dust receptacle 114 and a handle 115.
- the cyclone dust-collecting unit 113 and dust receptacle 114 may be disposed symmetrically to the left and right of the cyclone dust-collecting device 112, and the handle 115, by which a user is able to grip the cyclone dust-collecting device 112, may be disposed on top of the cyclone dust-collecting device 112.
- the cyclone dust-collecting device 112 is detachably mounted above the first body 110, as shown in FIG. 3 .
- the cyclone dust-collecting unit 113 and dust receptacle 114 have wall surfaces formed of transparent material so that the cyclone dust-collecting device 112 is visible therethrough. Additionally, windows 103 and 104 are formed on wall surfaces of the first body 110 facing the wall surface of the cyclone dust-collecting unit 113 and dust receptacle 114, so that a user can view inside the cyclone dust-collecting device 112 through the windows 103 and 104.
- the cyclone dust-collecting unit 113 includes an air inlet opening 113a through which air is drawn via the suction nozzle assembly 200 while tending towards one side of the cyclone dust-collecting unit 113, and an exhaust pipe 113b connected to the first suction unit 102, namely the DC vacuum suction motor.
- the exhaust pipe 113b has a plurality of pores 113c formed on an outer circumference thereof.
- the cyclone dust-collecting unit 113 is connected to the first suction unit 102 through two end openings of the exhaust pipe 113b. In this situation, air from which dust discharged through the two end openings of the exhaust pipe 113b has been separated is filtered by a filter 102a and then flows into the first suction unit 102.
- the dust receptacle 114 may face the cyclone dust-collecting unit 113.
- the dust receptacle 114 may desirably be disposed opposite the cyclone dust-collecting unit 113 so as to collect dust which is centrifugally separated by the cyclone dust-collecting unit 113.
- the cyclone dust-collecting device 112 may desirably include a cover 112a (see FIG. 4 ) which is disposed on the top thereof and by which the cyclone dust-collecting device 112 may be opened and closed.
- the cover 112a may be opened by a user to remove dust from the cyclone dust-collecting unit 113 and dust receptacle 114, when the cyclone dust-collecting unit 113 and dust receptacle 114 are full of dust.
- the cover 112a may be connected by a snapping motion to the cyclone dust-collecting device 112, so it is possible to lock the cover 112a to the cyclone dust-collecting device 112. Alternatively, the cover 112 may be locked by a separate locking unit.
- the second body 120 is securely mounted below the first body 110.
- the second body 120 includes a plurality of wheels 121 disposed on the bottom thereof, so that the main body 100 may travel across the bottom surface.
- the bumper unit 130 includes a bumper frame 131, a plurality of rollers 132 and an elastic band 133, as shown in FIGS. 2 and 7 .
- the bumper frame 131 has a ring shape and is mounted rotatably on the first body 110 and second body 120, as shown in FIG. 7 .
- a receiving groove in which the ring-shaped bumper frame 131 is rotatably inserted and which has a shape corresponding to the bumper frame 131 may be formed in a connection portion between the first body 110 and second body 120.
- the plurality of rollers 132 may be in contact with the receiving groove in the second body 120 which faces the bumper frame 131, and may travel across a contact area. Accordingly, the plurality of rollers 132 may rotatably support the bumper frame 131 using the contact area as a guide rail. Therefore, the bumper frame 131 may rotate smoothly to the first body 110 and second body 120.
- the elastic band 133 may be attached around the outer circumference of the bumper frame 131, and may be disposed at the furthest point from the main body 100.
- the elastic band 133 may be made of elastic material such as rubber, sponge, silicone or urethane, and may be formed in the shape of a loop. Accordingly, even when the main body 100 comes into contact with or collides with furniture, the elastic band 133 may prevent the furniture from being damaged. Additionally, the bumper frame 131 may be made to rotate to the first body 110 and second body 120 by the surface friction generated between the furniture and the main body 100, so it is possible to prevent shocks from reaching the main body 100.
- the suction nozzle assembly 200 includes a suction nozzle body 210 and a second suction unit 220.
- the suction nozzle body 210 has a suction port 201 through which dust is drawn in from a surface being cleaned.
- the suction nozzle body 210 is connected to the main body 100 via an extension pipe 240 and a flexible hose 250.
- the second suction unit 220 forces dust-laden air drawn in through the suction port 201 to flow towards the main body 100.
- the second suction unit 220 may be an air pump system, and may include a pump housing 221, an impeller 222 and a driving motor 223.
- the pump housing 221 is disposed inside the suction nozzle body 210 and on an air passage between the suction port 201 and the extension pipe 240.
- the pump housing 221 may be formed integrally with the suction nozzle body 210.
- the pump housing 221 includes an inlet 221a which is formed on one side thereof and is connected to the suction port 201, and an outlet 221b which is formed on the opposite side thereof and is connected to the extension pipe 240.
- the impeller 222 is rotatably mounted inside the pump housing 221, and a vacuum pressure may thus be generated by rotation of the impeller 222. Accordingly, the impeller 222 may force dust-laden air drawn in via the inlet 221a to flow towards the main body 100 through the outlet 221b, extension pipe 240 and flexible hose 250 using the vacuum pressure.
- the driving motor 223 is mounted outside the pump housing 221 and causes the impeller 222 to rotate.
- the driving motor 223 may be operated by the power source of the chargeable battery 101, or operated by a separate power unit such as a dry cell.
- the cordless vacuum cleaner is used when the chargeable battery 101 is charged for a predetermined period of time, it does not require a separate power supply.
- the chargeable battery 101 supplies power to the first suction unit 102, namely the DC vacuum suction motor, mounted in the main body 100, and the second suction unit 220, namely the air pump system, mounted in the suction nozzle assembly 200, so that it is possible to again draw in dust-laden air that has been drawn in via the suction port 201.
- the first suction unit 102 namely the DC vacuum suction motor
- the second suction unit 220 namely the air pump system
- the first suction unit 102 forms a vacuum pressure and thereby draws dust-laden air via the suction port 201 into the cyclone dust-collecting unit 113.
- dust-laden air adjacent to the suction port 201 is compulsorily made to flow towards the main body 100 by a pumping operation of the second suction unit 220, namely the air pump system, mounted near the suction port 201.
- a rotation force generated by rotation of the impeller 222 is added to the vacuum pressure of the first suction unit 102, so dust-laden air drawn in through the suction port 201 may be compulsorily transferred to the main body 100 more rapidly using a much stronger force.
- the flow rate of air flowing into the cyclone dust-collecting device 112 may increase so that the rotation force of air in the cyclone dust-collecting unit 113 may also increase. Accordingly, dust contained in the air in the cyclone dust-collecting unit 113 may be centrifugally separated with greater efficiency, and the vacuum cleaner may draw in relatively large dust using a stronger suction force.
- the main body 100 is substantially hemispherical in shape, so it is possible to prevent the main body 100 from being blocked by furniture or wall edges.
- the ring-shaped bumper unit 130 is rotatably mounted between the first body 110 and second body 120 of the main cleaner 100, so even when the main body 100 is in contact with furniture or walls, the bumper unit 130 may prevent the main body 100 from being unable to move due to being caught on furniture or wall edges. This is because the bumper unit 130 is able to rotate to the first body 110 and second body 120.
- the bumper unit 130 includes the elastic band 133, which is made of elastic material such as rubber, sponge, silicone or urethane and is disposed at the furthest point from the main body 100. Accordingly, even when the main body 100 collides with furniture or walls, the elastic band 133 may prevent furniture or walls from being damaged.
- the elastic band 133 is made of elastic material such as rubber, sponge, silicone or urethane and is disposed at the furthest point from the main body 100. Accordingly, even when the main body 100 collides with furniture or walls, the elastic band 133 may prevent furniture or walls from being damaged.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Electric Suction Cleaners (AREA)
Abstract
A cordless vacuum cleaner includes a main body (100) comprising a chargeable battery (101) and a first suction unit (101) operated by the chargeable battery; and a suction nozzle (210) assembly comprising a suction port connected to the main body (100) to draw in dust from a surface being cleaned, and a second suction unit (220) to force dust-laden air drawn in through the suction port to flow towards the main body (100).
Description
- This application claims the benefit under 35 U.S.C. § 119(a) from Korean Patent Application No.
10-2008-0023947, filed on March 14, 2008 - The present invention relates to a vacuum cleaner, and more particularly, to a cordless vacuum cleaner.
- Vacuum cleaners generally draw in dust-laden air from surfaces being cleaned, using the vacuum pressure of vacuum suction motors in cleaner main bodies, and dust-collectors of vacuum cleaners collect dust. To draw dust-laden air and collect dust, cleaner main bodies include power supply devices, power cords of which are connected to wall sockets to receive power sources.
- Movement of cleaners is restricted by limitations on the length of the power cord, so users may need to connect the power cord to a wall socket in each room whenever they clean a room, which causes user inconvenience.
- In order to remove such inconvenience, cordless vacuum cleaners have been developed using a battery charging method. As such cordless vacuum cleaners do not require power cords, there is no limitation on the movement of vacuum cleaners due to the limited length of power cords, so users can easily perform cleaning anywhere.
- However, in such cordless vacuum cleaners, batteries chargeable with direct current (DC) power source may be used only for approximately 10 minutes. Additionally, the suction force of motors driven by the DC power source is less than that of wired vacuum cleaners used while being directly connected to an alternating current (AC) power source, so it is difficult to draw in large dust.
- The present invention has been developed in order to solve the above described and other problems in the related art. Accordingly, an aspect of the present invention is to provide a cordless vacuum cleaner having an improved structure which enables the suction force of the vacuum cleaner to be increased.
- The above aspects are achieved by providing a cordless vacuum cleaner including a main body including a chargeable battery and a first suction unit operated by the chargeable battery; and a suction nozzle assembly including a suction port connected to the main body to draw in dust from a surface being cleaned, and a second suction unit to force dust-laden air drawn in through the suction port to flow towards the main body.
- The first suction unit may be a direct current (DC) vacuum suction motor, and the second suction unit may be an air pump system.
- The air pump system may include a pump housing including an inlet connected to the suction port and an outlet connected to the main body; an impeller which is rotatably mounted inside the pump housing; and a driving motor to cause the impeller to rotate. The driving motor may be operated by the chargeable battery.
- The main body may further include a power unit in which the first suction unit is mounted; and a cyclone dust-collecting device in which dust is collected by a whirling air current.
- The cyclone dust-collecting device may include a cyclone dust-collecting unit into which air is drawn in via the suction nozzle assembly while tending towards one side of the cyclone dust-collecting unit; and a dust receptacle in which dust separated by the cyclone dust-collecting unit is collected.
- The cyclone dust-collecting unit may be connected to the first suction unit via two end openings of an exhaust pipe having a plurality of pores formed on an outer circumference thereof.
- The cyclone dust-collecting unit and dust receptacle may have wall surfaces formed of transparent material.
- The main body may further include a first body in which the power unit and cyclone dust-collecting device are mounted; a second body attached to a bottom portion of the first body, the second body having a traveling unit; and a bumper unit disposed between the first body and second body.
- The bumper unit may include a bumper frame mounted rotatably to the first body and second body; a plurality of rollers disposed facing the second body to reduce friction between the second body and the bumper frame while rotating; and an elastic band attached around an outer circumference of the bumper frame. The elastic band may be formed in the shape of a loop.
- As described above, both the air pump system mounted in the suction nozzle assembly and the DC vacuum suction motor mounted in the main body are able to drawn in dust-laden air, so it is possible to increase the dust-collecting efficiency of the cordless vacuum cleaner.
- Additionally, the flow rate of dust flowing into the vacuum cleaner may increase so that the rotation force of air in the cyclone dust-collecting device may also increase. Accordingly, dust may be centrifugally separated with greater efficiency.
- The above and other advantages of the present invention will be more apparent by describing exemplary embodiments of the present invention with reference to the accompanying drawing figures, in which:
-
FIG. 1 is a perspective view of a cordless vacuum cleaner according to an exemplary embodiment of the present invention; -
FIG. 2 is a front view of a main body of a cordless vacuum cleaner according to an exemplary embodiment of the present invention; -
FIG. 3 is an explosive, perspective view of the main body shown inFIG. 2 ; -
FIG. 4 is a plane view of the main body shown inFIG. 2 ; -
FIG. 5 is a front sectional view of the main body shown inFIG. 2 ; -
FIG. 6 is a side sectional view of the main body shown inFIG. 2 ; -
FIG. 7 is a bottom view of a first body of a main body of a cordless vacuum cleaner according to an exemplary embodiment of the present invention; and -
FIG. 8 is a side sectional view of a suction nozzle assembly of a cordless vacuum cleaner according to an exemplary embodiment of the present invention. - Throughout the drawings, like reference numerals will be understood to refer to like parts, components and structures.
- Certain exemplary embodiments of the present invention will be described in greater detail with reference to the accompanying drawings.
- Referring to
FIGS. 1 and2 , a cordless vacuum cleaner according to an exemplary embodiment of the present invention includes amain body 100 and asuction nozzle assembly 200. - The
main body 100 includes afirst body 110, asecond body 120, and abumper unit 130, which is disposed between thefirst body 110 andsecond body 120. - The
first body 110 has a hemispherical shape, as shown inFIGS. 1 and2 , and includes apower unit 111 and a cyclone dust-collecting device 112, as shown inFIG. 3 . - The
power unit 111 may desirably be disposed in the rear of themain body 100. Thepower unit 111 includes achargeable battery 101 and afirst suction unit 102, as shown inFIG. 3 . Thefirst suction unit 102 is operated by the power source supplied by thechargeable battery 101, and may be a DC vacuum suction motor operated by a direct current (DC) power source from thechargeable battery 101. - Additionally, the
power unit 111 may include alocking unit 111a which is able to lock or unlock the cyclone dust-collecting device 112. Thelocking unit 111a may be variously configured, so the present invention is equally applicable to any unit capable of locking or releasing the cyclone dust-collecting device 112 by a simple operation of pressing a button. - As shown in
FIG. 3 , the cyclone dust-collecting device 112 is mounted in the front of thefirst body 110. The cyclone dust-collecting device 112 includes a cyclone dust-collecting unit 113, adust receptacle 114 and ahandle 115. The cyclone dust-collecting unit 113 anddust receptacle 114 may be disposed symmetrically to the left and right of the cyclone dust-collecting device 112, and thehandle 115, by which a user is able to grip the cyclone dust-collecting device 112, may be disposed on top of the cyclone dust-collecting device 112. - The cyclone dust-
collecting device 112 is detachably mounted above thefirst body 110, as shown inFIG. 3 . The cyclone dust-collectingunit 113 anddust receptacle 114 have wall surfaces formed of transparent material so that the cyclone dust-collecting device 112 is visible therethrough. Additionally,windows first body 110 facing the wall surface of the cyclone dust-collecting unit 113 anddust receptacle 114, so that a user can view inside the cyclone dust-collectingdevice 112 through thewindows - Referring to
FIGS. 5 and 6 , the cyclone dust-collecting unit 113 includes an air inlet opening 113a through which air is drawn via thesuction nozzle assembly 200 while tending towards one side of the cyclone dust-collecting unit 113, and anexhaust pipe 113b connected to thefirst suction unit 102, namely the DC vacuum suction motor. Theexhaust pipe 113b has a plurality ofpores 113c formed on an outer circumference thereof. The cyclone dust-collecting unit 113 is connected to thefirst suction unit 102 through two end openings of theexhaust pipe 113b. In this situation, air from which dust discharged through the two end openings of theexhaust pipe 113b has been separated is filtered by afilter 102a and then flows into thefirst suction unit 102. - The
dust receptacle 114 may face the cyclone dust-collecting unit 113. In more detail, thedust receptacle 114 may desirably be disposed opposite the cyclone dust-collecting unit 113 so as to collect dust which is centrifugally separated by the cyclone dust-collecting unit 113. - The cyclone dust-
collecting device 112 may desirably include acover 112a (seeFIG. 4 ) which is disposed on the top thereof and by which the cyclone dust-collecting device 112 may be opened and closed. Thecover 112a may be opened by a user to remove dust from the cyclone dust-collecting unit 113 anddust receptacle 114, when the cyclone dust-collecting unit 113 anddust receptacle 114 are full of dust. Thecover 112a may be connected by a snapping motion to the cyclone dust-collecting device 112, so it is possible to lock thecover 112a to the cyclone dust-collecting device 112. Alternatively, thecover 112 may be locked by a separate locking unit. - As shown in
FIG. 2 , thesecond body 120 is securely mounted below thefirst body 110. Thesecond body 120 includes a plurality ofwheels 121 disposed on the bottom thereof, so that themain body 100 may travel across the bottom surface. - The
bumper unit 130 includes abumper frame 131, a plurality ofrollers 132 and anelastic band 133, as shown inFIGS. 2 and7 . - The
bumper frame 131 has a ring shape and is mounted rotatably on thefirst body 110 andsecond body 120, as shown inFIG. 7 . A receiving groove in which the ring-shapedbumper frame 131 is rotatably inserted and which has a shape corresponding to thebumper frame 131 may be formed in a connection portion between thefirst body 110 andsecond body 120. - The plurality of
rollers 132 may be in contact with the receiving groove in thesecond body 120 which faces thebumper frame 131, and may travel across a contact area. Accordingly, the plurality ofrollers 132 may rotatably support thebumper frame 131 using the contact area as a guide rail. Therefore, thebumper frame 131 may rotate smoothly to thefirst body 110 andsecond body 120. - The
elastic band 133 may be attached around the outer circumference of thebumper frame 131, and may be disposed at the furthest point from themain body 100. Theelastic band 133 may be made of elastic material such as rubber, sponge, silicone or urethane, and may be formed in the shape of a loop. Accordingly, even when themain body 100 comes into contact with or collides with furniture, theelastic band 133 may prevent the furniture from being damaged. Additionally, thebumper frame 131 may be made to rotate to thefirst body 110 andsecond body 120 by the surface friction generated between the furniture and themain body 100, so it is possible to prevent shocks from reaching themain body 100. - Referring to
FIGS. 1 and8 , thesuction nozzle assembly 200 includes asuction nozzle body 210 and asecond suction unit 220. - The
suction nozzle body 210 has asuction port 201 through which dust is drawn in from a surface being cleaned. Thesuction nozzle body 210 is connected to themain body 100 via anextension pipe 240 and aflexible hose 250. - The
second suction unit 220 forces dust-laden air drawn in through thesuction port 201 to flow towards themain body 100. According to the exemplary embodiment of the present invention, thesecond suction unit 220 may be an air pump system, and may include apump housing 221, animpeller 222 and a drivingmotor 223. - The
pump housing 221 is disposed inside thesuction nozzle body 210 and on an air passage between thesuction port 201 and theextension pipe 240. Thepump housing 221 may be formed integrally with thesuction nozzle body 210. Thepump housing 221 includes aninlet 221a which is formed on one side thereof and is connected to thesuction port 201, and anoutlet 221b which is formed on the opposite side thereof and is connected to theextension pipe 240. - The
impeller 222 is rotatably mounted inside thepump housing 221, and a vacuum pressure may thus be generated by rotation of theimpeller 222. Accordingly, theimpeller 222 may force dust-laden air drawn in via theinlet 221a to flow towards themain body 100 through theoutlet 221b,extension pipe 240 andflexible hose 250 using the vacuum pressure. - The driving
motor 223 is mounted outside thepump housing 221 and causes theimpeller 222 to rotate. The drivingmotor 223 may be operated by the power source of thechargeable battery 101, or operated by a separate power unit such as a dry cell. - Hereinafter, an operation of the cordless vacuum cleaner according to the exemplary embodiment of the present invention will be described with reference to the accompanying drawings.
- Since the cordless vacuum cleaner is used when the
chargeable battery 101 is charged for a predetermined period of time, it does not require a separate power supply. - The
chargeable battery 101 supplies power to thefirst suction unit 102, namely the DC vacuum suction motor, mounted in themain body 100, and thesecond suction unit 220, namely the air pump system, mounted in thesuction nozzle assembly 200, so that it is possible to again draw in dust-laden air that has been drawn in via thesuction port 201. - If a user operates the vacuum cleaner, the
first suction unit 102 forms a vacuum pressure and thereby draws dust-laden air via thesuction port 201 into the cyclone dust-collectingunit 113. - Separately from the above suction operation, dust-laden air adjacent to the
suction port 201 is compulsorily made to flow towards themain body 100 by a pumping operation of thesecond suction unit 220, namely the air pump system, mounted near thesuction port 201. - In more detail, a rotation force generated by rotation of the
impeller 222 is added to the vacuum pressure of thefirst suction unit 102, so dust-laden air drawn in through thesuction port 201 may be compulsorily transferred to themain body 100 more rapidly using a much stronger force. - As described above, if all the suction forces exerted by both the first and
second suction units device 112 may increase so that the rotation force of air in the cyclone dust-collectingunit 113 may also increase. Accordingly, dust contained in the air in the cyclone dust-collectingunit 113 may be centrifugally separated with greater efficiency, and the vacuum cleaner may draw in relatively large dust using a stronger suction force. - Additionally, the
main body 100 is substantially hemispherical in shape, so it is possible to prevent themain body 100 from being blocked by furniture or wall edges. Furthermore, the ring-shapedbumper unit 130 is rotatably mounted between thefirst body 110 andsecond body 120 of themain cleaner 100, so even when themain body 100 is in contact with furniture or walls, thebumper unit 130 may prevent themain body 100 from being unable to move due to being caught on furniture or wall edges. This is because thebumper unit 130 is able to rotate to thefirst body 110 andsecond body 120. - Moreover, the
bumper unit 130 includes theelastic band 133, which is made of elastic material such as rubber, sponge, silicone or urethane and is disposed at the furthest point from themain body 100. Accordingly, even when themain body 100 collides with furniture or walls, theelastic band 133 may prevent furniture or walls from being damaged. - The foregoing exemplary embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teaching can be readily applied to other types of apparatuses. Also, the description of the exemplary embodiments of the present invention is intended to be illustrative, and not to limit the scope of the claims, and many alternatives, modifications, and variations will be apparent to those skilled in the art.
Claims (11)
- A cordless vacuum cleaner comprising:a main body comprising a chargeable battery and a first suction unit operated by the chargeable battery; anda suction nozzle assembly comprising a suction port connected to the main body to draw in dust from a surface being cleaned, and a second suction unit to force dust-laden air drawn in through the suction port to flow towards the main body.
- The cordless vacuum cleaner as claimed in claim 1, wherein the first suction unit is a direct current (DC) vacuum suction motor, and the second suction unit is an air pump system.
- The cordless vacuum cleaner as claimed in claim 2, wherein the air pump system comprises:a pump housing comprising an inlet connected to the suction port and an outlet connected to the main body;an impeller which is rotatably mounted inside the pump housing; anda driving motor to cause the impeller to rotate.
- The cordless vacuum cleaner as claimed in claim 3, wherein the driving motor is operated by the chargeable battery.
- The cordless vacuum cleaner as claimed in any of claims 1 to 4, wherein the main body further comprises:a power unit in which the first suction unit is mounted; anda cyclone dust-collecting device in which dust is collected by a whirling air current.
- The cordless vacuum cleaner as claimed in claim 5, wherein the cyclone dust-collecting device comprises:a cyclone dust-collecting unit into which air is drawn in via the suction nozzle assembly while tending towards one side of the cyclone dust-collecting unit; anda dust receptacle in which dust separated by the cyclone dust-collecting unit is collected.
- The cordless vacuum cleaner as claimed in claim 6, wherein the cyclone dust-collecting unit is connected to the first suction unit via two end openings of an exhaust pipe having a plurality of pores formed on an outer circumference thereof.
- The cordless vacuum cleaner as claimed in claim 6 or 7, wherein the cyclone dust-collecting unit and dust receptacle have wall surfaces formed of transparent material.
- The cordless vacuum cleaner as claimed in any of the claims 5 to 8, wherein the main body further comprises:a first body in which the power unit and cyclone dust-collecting device are mounted;a second body attached to a bottom portion of the first body, the second body having a traveling unit; anda bumper unit disposed between the first body and second body.
- The cordless vacuum cleaner as claimed in claim 9, wherein the bumper unit comprises:a bumper frame mounted rotatably to the first body and second body;a plurality of rollers disposed facing the second body to reduce friction between the second body and the bumper frame while rotating; andan elastic band attached around an outer circumference of the bumper frame.
- The cordless vacuum cleaner as claimed in claim 10, wherein the elastic band is formed in the shape of a loop.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080023947A KR101473786B1 (en) | 2008-03-14 | 2008-03-14 | Wireless vacuum cleaner |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2100546A1 true EP2100546A1 (en) | 2009-09-16 |
Family
ID=40765444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08159756A Withdrawn EP2100546A1 (en) | 2008-03-14 | 2008-07-04 | Cordless vacuum cleaner |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2100546A1 (en) |
KR (1) | KR101473786B1 (en) |
RU (1) | RU2008135763A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014135792A1 (en) * | 2013-03-05 | 2014-09-12 | Ecodrop | Household appliance with annular bumper |
CN104480886A (en) * | 2014-12-15 | 2015-04-01 | 广西大学 | Hand-held type small rubbish suction device |
WO2020028556A1 (en) * | 2018-07-31 | 2020-02-06 | Sharkninja Operating Llc | Upright surface treatment apparatus having removable pod |
CN111166231A (en) * | 2018-11-13 | 2020-05-19 | 苏州宝时得电动工具有限公司 | Dust collector and wireless charging device for same |
US11399675B2 (en) | 2018-07-31 | 2022-08-02 | Sharkninja Operating Llc | Upright surface treatment apparatus having removable pod |
US11617482B2 (en) | 2018-02-09 | 2023-04-04 | Sharkninja Operating Llc | Accessories for a surface treatment apparatus having a plurality of operational states and surface treatment apparatus configured to actuate the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101461985B1 (en) * | 2013-04-04 | 2014-11-14 | 엘지전자 주식회사 | vacuum cleaner |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4960446A (en) * | 1989-05-19 | 1990-10-02 | Whirlpool Corporation | Vacuum cleaner dirt receptacle |
US6282749B1 (en) * | 1995-03-15 | 2001-09-04 | Hitachi, Ltd. | Vacuum cleaner and suction nozzle body thereof cross reference to related application |
EP1260170A1 (en) * | 2001-05-23 | 2002-11-27 | Toshiba Tec Kabushiki Kaisha | Electric vacuum cleaner |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4559599B2 (en) * | 2000-08-02 | 2010-10-06 | 株式会社東芝 | Electric vacuum cleaner |
KR100776403B1 (en) * | 2007-02-14 | 2007-11-16 | 삼성광주전자 주식회사 | Cyclone dust separating apparatus for vacuum cleaner |
KR100809617B1 (en) * | 2007-03-26 | 2008-03-05 | 주식회사코네트인더스트리 | Turn bumper that include vacuum cleaner |
-
2008
- 2008-03-14 KR KR1020080023947A patent/KR101473786B1/en not_active IP Right Cessation
- 2008-07-04 EP EP08159756A patent/EP2100546A1/en not_active Withdrawn
- 2008-09-04 RU RU2008135763/12A patent/RU2008135763A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4960446A (en) * | 1989-05-19 | 1990-10-02 | Whirlpool Corporation | Vacuum cleaner dirt receptacle |
US6282749B1 (en) * | 1995-03-15 | 2001-09-04 | Hitachi, Ltd. | Vacuum cleaner and suction nozzle body thereof cross reference to related application |
EP1260170A1 (en) * | 2001-05-23 | 2002-11-27 | Toshiba Tec Kabushiki Kaisha | Electric vacuum cleaner |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014135792A1 (en) * | 2013-03-05 | 2014-09-12 | Ecodrop | Household appliance with annular bumper |
CN104480886A (en) * | 2014-12-15 | 2015-04-01 | 广西大学 | Hand-held type small rubbish suction device |
US11617482B2 (en) | 2018-02-09 | 2023-04-04 | Sharkninja Operating Llc | Accessories for a surface treatment apparatus having a plurality of operational states and surface treatment apparatus configured to actuate the same |
WO2020028556A1 (en) * | 2018-07-31 | 2020-02-06 | Sharkninja Operating Llc | Upright surface treatment apparatus having removable pod |
US11399675B2 (en) | 2018-07-31 | 2022-08-02 | Sharkninja Operating Llc | Upright surface treatment apparatus having removable pod |
AU2019312591B2 (en) * | 2018-07-31 | 2023-03-16 | Sharkninja Operating Llc | Upright surface treatment apparatus having removable pod |
US11998157B2 (en) | 2018-07-31 | 2024-06-04 | Sharkninja Operating Llc | Upright surface treatment apparatus having removable pod |
CN111166231A (en) * | 2018-11-13 | 2020-05-19 | 苏州宝时得电动工具有限公司 | Dust collector and wireless charging device for same |
Also Published As
Publication number | Publication date |
---|---|
RU2008135763A (en) | 2010-03-10 |
KR20090098512A (en) | 2009-09-17 |
KR101473786B1 (en) | 2014-12-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2848173B1 (en) | Vacuum cleaner | |
EP2100546A1 (en) | Cordless vacuum cleaner | |
EP2392244B1 (en) | Hand-held and stick vacuum cleaner | |
US10492651B2 (en) | Bagless vacuum cleaner | |
JP2010508885A (en) | Handy vacuum cleaner | |
EP2007262A1 (en) | Body of vacuum cleaner and handy type cleaner | |
KR20130137580A (en) | Cyclone dust collecting apparatus and a handy-type cleaner having the same | |
US20200221914A1 (en) | Cleaner | |
CN215959668U (en) | Air duct and water tank combined structure, portable cleaning device and surface cleaning equipment | |
CN107361695A (en) | Device with dedusting duster and the pumping cells for cleaning dedusting duster | |
EP2417886B1 (en) | Vacuum cleaner | |
US8955193B2 (en) | Vacuum cleaner | |
JP6334913B2 (en) | Electric vacuum cleaner | |
KR20060107625A (en) | A dust collector for vacuum clearner | |
JP6599596B2 (en) | Electric vacuum cleaner | |
US20240041284A1 (en) | Docking unit for a surface cleaning apparatus | |
WO2021171661A1 (en) | Suction port body for electric vacuum cleaner and electric vacuum cleaner provided with same | |
KR101199662B1 (en) | Dust and dirt collecting unit for vacuum cleaner | |
JP3394206B2 (en) | Electric vacuum cleaner | |
KR200354037Y1 (en) | Up-right type vacuum cleaner | |
KR20150126451A (en) | Vacuum cleaner | |
JP3432165B2 (en) | Electric vacuum cleaner | |
KR200353549Y1 (en) | An accessory structure of vacuum cleaner | |
TW202200068A (en) | Cleaner | |
CN115702767A (en) | Host computer and surface cleaning equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100317 |