|Publication number||US20090064447 A1|
|Application number||US 12/071,620|
|Publication date||Mar 12, 2009|
|Filing date||Feb 25, 2008|
|Priority date||Sep 7, 2007|
|Publication number||071620, 12071620, US 2009/0064447 A1, US 2009/064447 A1, US 20090064447 A1, US 20090064447A1, US 2009064447 A1, US 2009064447A1, US-A1-20090064447, US-A1-2009064447, US2009/0064447A1, US2009/064447A1, US20090064447 A1, US20090064447A1, US2009064447 A1, US2009064447A1|
|Inventors||Jang-Keun Oh, Hyoun-soo Kim|
|Original Assignee||Samsung Gwangju Electronics Co., Ltd.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (7), Classifications (20), Legal Events (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application claims the benefit under 35 U.S.C. §119(a) of Korean Patent Application No. 10-2007-0091234, filed Sep. 7, 2007, in the Korean Intellectual Property Office, the entire disclosure of which is hereby incorporated by reference.
The present invention relates to a vacuum cleaner, and more particularly, to a steam vacuum cleaner having vacuum cleaning and steam cleaning functions.
A steam vacuum cleaner having both vacuum cleaning and steam cleaning functions is available. This type of vacuum cleaner can vacuum an object being cleaned while concurrently ejecting steam onto the object so as to remove contaminants from the object being cleaned more efficiently.
Conventional general steam vacuum cleaners can use a level of power which is generally 2000 Watts (W) at the maximum. Therefore, it is necessary to employ high voltage components, including high voltage lines, for these vacuum cleaners to use more than 2000 W of power, which increases the cost of the cleaner.
Conventional general steam vacuum cleaners include a suction motor which consumes approximately 1300 W of power, and a small-sized heater unit that consumes approximately 700 W of power for steam cleaning. Therefore, the performance of a conventional steam vacuum cleaners is not comparable to the performance of a steam-only cleaner, which consumes approximately 1200 W of power and employs a large-sized high-capacity heater unit having, for example, approximately 800 cc of capacity.
A small-sized heater unit also has the drawback that components, such as ejection nozzles, are frequently blocked and become incapable of operating when a coating of scale and hard incrustations grows inside the heater unit due to the gathering of deposits of substances such as calcium (Ca2+) and magnesium (Mg2+).
Accordingly, to solve at least the above problems and/or disadvantages and to provide at least the advantages described below, a non-limiting object of the present invention is to provide a steam vacuum cleaner that consumes less power than a conventional vacuum cleaner, but provides improved steam cleaning performance, wherein the steam vacuum cleaner includes a suction port assembly comprising a dust receptacle formed therein and an impeller driven by a motor to draw in air and dust from an object being cleaned through a suction port formed on a lower portion of the suction port assembly and to discharge the suctioned air and dust into the dust receptacle, a main body comprising a water tank and a heater unit to receive water from the water tank and generate steam and wherein a lower portion of the main body is hinged to a portion of the suction port assembly, and a floorcloth plate formed on a lower portion of the suction port assembly and comprising at least one floorcloth attached thereto.
It is another object of the present invention to provide a steam vacuum cleaner that includes a heater unit that consumes from about 1200 W to about 1900 W of power and motor that consumes from about 80 W to about 100 W of power. The heater unit may be a large-capacity unit that holds from about 700 cc to about 900 cc of water therein. The motor may be an AC motor.
It is another object of the present invention to provide a steam vacuum cleaner that includes an impeller formed on a passage between the suction port and the dust receptacle. The passage may include a first passage in which a first end is formed adjacent to the suction port and a second end opposite to the first end is formed adjacent to the impeller, an impeller casing part to surround the impeller, the impeller casing part being in fluid communication with the second end of the first passage, and a second passage in which a first end is in fluid communication with the impeller casing part and a second end opposite to the first end is in fluid communication with the dust receptacle.
The steam vacuum cleaner may further include a drum brush rotatably disposed in the suction port, to receive a driving force of the motor and move the dust of the object being cleaned to the first end of the first passage.
The steam vacuum cleaner may further include a partition member engaged with a lower portion of the suction port assembly to divide a space defined between the lower portion of the suction port assembly and the surface being cleaned into a vacuum cleaning area and a steam cleaning area so that dust being drawn in through the suction port is not mixed with the steam being emitted from a lower rear portion of the suction port assembly.
The steam vacuum cleaner may further include a rotating unit arranged inside the suction port assembly to rotate the floorcloth plate.
The steam vacuum cleaner may further include an operating handle comprising a stick part to be slid into the main body or slid out of the main body along the length direction of the main body.
The above and other aspects of the present invention will be more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings, in which:
Reference will now be made in detail to non-limiting embodiments of the present invention by way of reference to the accompanying drawings, wherein like reference numerals refer to like parts, components and structures.
The suction port assembly 100 may include an upper casing 110, a lower casing 120, a drum brush 125 (
The upper casing 110 may include a hinge part 111 engaged with a hinge axis 202 (
The lower casing 120 may be detachably engaged with the lower portion of the upper casing 110 so as to define a space in cooperation with the upper casing 110 for protecting the elements housed therein, such as the drum brush 125, the motor 130 and the impeller 135. Referring to
The lower casing 120 includes passages 143, 144 and 145 formed therein for directing dust entering through the suction port 123 to flow to the dust receptacle 150. The passages 143, 144 and 145 include a first passage 143, an impeller casing 144, and a second passage 145. The first passage 143 includes an inlet 141 formed at a first end formed adjacent to the suction port 123. A second end of the first passage 143, which is opposite to the inlet 141, is in fluid communication with the impeller casing 144. A first end of the second passage 145 is in fluid communication with the impeller casing 144, and a second end of the second passage 145 opposite to the first end is in fluid communication with a dust inlet 153 of the dust receptacle 150. The impeller casing 144 has an inner diameter larger than an outer diameter of the impeller 135 to allow the impeller 135 housed therein to rotate. Accordingly, dust entering the inlet 141 passes the first passage 143, the impeller casing 144 and the second passage in sequence, before being collected in the dust receptacle 150.
As illustrated in
The motor 130 according to an exemplary embodiment of the present invention consumes approximately 80 W to 100 W of power, which is significantly less than a conventional suction motor of a vacuum cleaner that consumes approximately 700 W to 800 W of power. The heater unit 240 uses AC power, and it is desirable that the motor 130 also uses AC power. Referring to
At least the upper portion of the dust receptacle 150 is made out of translucent material. The translucent upper portion of the dust receptacle 150 is visible to the outside of the suction port assembly 100 when the dust receptacle 150 is seated in the hole 113 of the upper casing 110 to allow a user to look inside the dust receptacle 150 and check the amount of dust collected therein. The dust receptacle 150 may include a handle portion 151 disposed at the top thereof so a user may grip and remove the dust receptacle 150 from the suction port assembly 100 to empty the dust receptacle 150 of dust and debris. The dust receptacle 150 may also include a discharge part 155 (
The rotating unit 160 is arranged on the lower casing 120 and at the back of the motor 130. The rotating unit 160 includes a plurality of worm gears (not illustrated) and bevel gears (not illustrated). The rotating unit 160 receives driving force from the motor 130 to rotate the pair of circular floorcloth plates 161 a and 161 b attached to the lower portion of the lower casing 120. The pair of floorcloth plates 161 a and 161 b may include VELCRO tapes (not illustrated) disposed on the lower portions to be attached to or detached from the floorcloths 163 a and 163 b.
The floorcloths 163 a and 163 b may be stationary instead of being rotatable. Referring to
The floorcloth plate 430 also includes an elongated hole 433 to allow streams of steam, which are emitted out of a plurality of steam holes 426 formed on the lower casing 420, to hit the object being cleaned without being obstructed by the floorcloth plate 430. The floorcloth plate 430 may include a foot-operating pedal 435 extending from the rear portion so that a user can step on the foot-operating pedal 435 and disengage the floorcloth plate 430 from the lower casing 420 with ease. When a stationary floorcloth 440 is employed, the rotating unit 160 is not necessary in the suction port assembly 400. The suction port assembly 400 also includes wheels 429 a and 429 b disposes at the back of the suction port assembly 400 that are configured to roll on the surface to be cleaned. The wheels help a user operate the cleaner with greater ease. In
A rear portion of the water tank 210 is inserted in the main body 200. The water tank 210 is removable through the opening 207. Elements such as pump 220, safety valve 230 and heater unit 240 are all housed in the main body 200. The water tank 210 is made out of a translucent material to allow a user to look inside the water tank 210 and check the water level through the front side of the water tank 210, which is visible to the outside of the main body 200.
The pump 220 receives water from the water tank 210 via an inlet port 221 and supplies a predetermined amount of water to the heater unit 240 through a water pipeline 231. A discharge pipe 233 in fluid communication with the main body 200 is formed on one side of the water pipeline 231. The safety valve 230 is installed on the discharge pipe 233 to prevent backflow of water back to the pump 220 when the water supply is obstructed due to pressure generated inside the heater unit 240. The discharge pipe 233 is used as a passage to discharge the water outside the main body 200.
Unlike other small-sized heater units generally employed in conventional steam cleaners, the heater unit 240 according to the exemplary embodiment of the present invention employs a sheath heater which consumes approximately 1200 W to 1900 W of power, and a large-sized heater unit 240 that holds approximately 700 cc to 900 cc of water. The motor 130 of the present invention consumes approximately 80 W to 100 W of power and the cleaner consumes maximum 1400 W of power. Accordingly, the steam vacuum cleaner according to the exemplary embodiment of the present invention can save approximately 600 W of power as compared to a conventional steam vacuum cleaner that consumes approximately 2000 W of power. Because the heater unit 240 is sized to accommodate a large amount of water, the possibility of having scale or deposits clogging the steam emitting pipe 241 is greatly decreased due to an increased inner area of the heater unit 240 and corresponding larger steam emitting pipe 241.
The operating handle 303 is engaged with the upper portion of the stick part 301 for the grip of a user and includes an operating button part 305 having a plurality of buttons to turn on and off the motor 130 and the heater unit 240. The user may operate vacuum cleaning and steam cleaning concurrently or separately by manipulating the operating button part 305.
A non-limiting exemplary method of operating both vacuum and steam cleaning operations concurrently using the above-described exemplary embodiment of the present invention is explained as follows.
When a user commands to turn on the motor 130 and the heater unit 240 through the operating button part 305, the cleaner starts vacuuming and steam cleaning. For vacuum cleaning, the driving shaft 131 of the motor 130 rotates, thereby driving the drum brush 125, the impeller 135 and the rotating unit 160 concurrently. Referring to
According to the exemplary embodiments of the present invention explained above, by using an AC motor 130 which consumes far less power than the suction motors used in the general steam vacuum cleaner and a large-sized heater unit 240 having higher efficiency and performance that consumes less power than the conventional applications, a better steam cleaning efficiency is provided with the same or reduced power consumption. Furthermore, because the large-sized heater unit 240 provides a large-sized steam emitting pipe 241, the steam emitting pipe 241 is less likely to be clogged by scale and deposits, thus making the cleaner usable for a longer period of time.
While certain exemplary embodiments of the present invention have been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8056181 *||Dec 12, 2006||Nov 15, 2011||Lg Electronics Inc.||Vacuum cleaner and intake port unit thereof|
|US8240002 *||Jun 25, 2009||Aug 14, 2012||Haan Corporation||Base assembly for vacuum cleaner|
|US8528161||Mar 12, 2010||Sep 10, 2013||Euro-Pro Operating Llc||Cleaning appliance having multiple functions|
|US8627543||Mar 12, 2010||Jan 14, 2014||Euro-Pro Operating Llc||Cleaning appliance having multiple functions|
|US20100037421 *||Feb 18, 2010||Gyung-Hee Haan||Base assembly for vacuum cleaner|
|EP2689704A1 *||Jul 25, 2013||Jan 29, 2014||Hoover Limited||Floor cleaning apparatus|
|WO2015114286A1 *||Feb 7, 2014||Aug 6, 2015||Techtronic Floor Care Technology Limited||Surface cleaning apparatus|
|U.S. Classification||15/320, 15/383, 15/349|
|International Classification||A47L9/14, A47L7/00, A47L5/22|
|Cooperative Classification||A47L9/325, A47L11/4086, A47L11/34, A47L13/22, A47L11/26, A47L11/4083, A47L13/225|
|European Classification||A47L11/40N4, A47L11/40N2, A47L13/22B, A47L11/34, A47L9/32C, A47L11/26, A47L13/22|
|Feb 25, 2008||AS||Assignment|
Owner name: SAMSUNG GWANGJU ELECTRONICS CO., LTD., KOREA, REPU
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OH, JANG-KEUN;KIM, HYOUN-SOO;REEL/FRAME:020606/0113
Effective date: 20080218