U.S. patent application number 11/983641 was filed with the patent office on 2008-12-11 for steam-vacuum cleaner with electric power controlling function and method thereof.
This patent application is currently assigned to SAMSUNG GWANGJU ELECTRONICS CO., LTD.. Invention is credited to Yoon-Kyunh Cho, Sam-Hyun Choi, Sam-Jong Jeung, Dae-Hyung Kim, Heung-Yi Kim, Kyoung-Woung Kim, Myeong-Ho Kim, Jang-Youn Ko, Hak-Bong Lee, Ju-Sang Lee, Tae-Young Ryu, Jeong-Gon Song.
Application Number | 20080301900 11/983641 |
Document ID | / |
Family ID | 39734926 |
Filed Date | 2008-12-11 |
United States Patent
Application |
20080301900 |
Kind Code |
A1 |
Choi; Sam-Hyun ; et
al. |
December 11, 2008 |
Steam-vacuum cleaner with electric power controlling function and
method thereof
Abstract
A steam-vacuum cleaner with an electric power controlling
function and a method thereof are provided. The steam-vacuum
cleaner includes a suction motor which rotates to generate a
suction force; a heater which emits heat to generate a steam; a
power supply part which supplies an electric power to the suction
motor and the heater; an electric power measuring part which
measure a total electric power supplied from the power supplier and
consumed in the suction motor and the heater; and a controller
which controls at least one of a rotational velocity of the suction
motor and a magnitude of heat emitted from the heater such that the
total electric power of the suction motor and the heater is
maintained less than a threshold value. Accordingly, steam and
vacuum cleaning functions are simultaneously performed within the
limit of power capacity of a wire.
Inventors: |
Choi; Sam-Hyun;
(Gwangju-City, KR) ; Jeung; Sam-Jong;
(Gwangju-City, KR) ; Song; Jeong-Gon;
(Gwangju-City, KR) ; Kim; Myeong-Ho;
(Gwangju-City, KR) ; Ryu; Tae-Young;
(Gwangju-City, KR) ; Lee; Ju-Sang; (Gwangju-City,
KR) ; Kim; Heung-Yi; (Gwangju-City, KR) ; Ko;
Jang-Youn; (Gwangju, KR) ; Kim; Kyoung-Woung;
(Gwangju-City, KR) ; Kim; Dae-Hyung; (Gwangju,
KR) ; Lee; Hak-Bong; (Gwangju-City, KR) ; Cho;
Yoon-Kyunh; (Jeonju-Si, KR) |
Correspondence
Address: |
Paul D. Greeley;Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
10th Floor, One Landmark Square
Stamford
CT
06901-2682
US
|
Assignee: |
SAMSUNG GWANGJU ELECTRONICS CO.,
LTD.
|
Family ID: |
39734926 |
Appl. No.: |
11/983641 |
Filed: |
November 9, 2007 |
Current U.S.
Class: |
15/319 ;
388/825 |
Current CPC
Class: |
A47L 9/2842 20130101;
A47L 9/2857 20130101; A47L 11/34 20130101; A47L 11/4005 20130101;
A47L 11/4011 20130101; F22B 1/28 20130101 |
Class at
Publication: |
15/319 ;
388/825 |
International
Class: |
A47L 9/28 20060101
A47L009/28 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 5, 2007 |
KR |
2007-54854 |
Claims
1. A cleaner, comprising: a suction motor which rotates to generate
a suction force; a heater which emits heat to generate a steam; a
power supply part which supplies an electric power to the suction
motor and the heater; an electric power measuring part which
measures a total electric power consumed in the suction motor and
the heater; and a controller which controls at least one of a
rotational velocity of the suction motor and a magnitude of heat
emitted from the heater such that the total electric power of the
suction motor and the heater is maintained less than a threshold
value.
2. The cleaner as claimed in claim 1, wherein the controller
maintains the magnitude of heat emitted from the heater constant
and adjusts the rotational velocity of the suction motor, thereby
maintaining the total electric power less than the threshold
value.
3. The cleaner as claimed in claim 1, wherein the controller
controls the rotational velocity of the suction motor by means of
phase control.
4. The cleaner as claimed in claim 1, wherein the controller
maintains the rotational velocity of the suction motor constant and
adjusts the magnitude of heat emitted from the heater, thereby
maintaining the total electric power less than the threshold
value.
5. The cleaner as claimed in claim 1, wherein the controller
adjusts the magnitude of heat emitted from the heater and adjusts
the rotational velocity of the suction motor, thereby maintaining
the total electric power less than the threshold value.
6. A method for controlling an electric power, comprising:
comparing a total electric power with a threshold value; and if the
total electric power exceeds the threshold value, controlling at
least one of a rotational velocity of a suction motor and a
magnitude of heat emitted from a heater to maintain the total
electric power less than the threshold value.
7. The method as claimed in claim 6, wherein the controlling step
comprises maintaining the magnitude of heat emitted from the heater
constant and adjusting the rotational velocity of the suction
motor, thereby maintaining the total electric power less than the
threshold value.
8. The method as claimed in claim 6, wherein the controlling step
comprises adjusting the rotational velocity of the suction motor by
phase control.
9. The method as claimed in claim 6, wherein the controlling step
comprises maintaining the rotational velocity of the suction motor
constant and adjusting the magnitude of heat emitted from the
heater, thereby maintaining the total electric power less than the
threshold value.
10. The method as claimed in claim 6, wherein the controlling step
comprises adjusting the magnitude of heat emitted from the heater
and adjusting the rotational velocity of the suction motor, thereby
maintaining the total electric power less than the threshold value.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority from Korean Patent
Application No. 10-2007-0054854, filed on Jun. 5, 2007, in the
Korean Intellectual Property Office, the entire disclosure of which
is hereby incorporated by reference.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] Methods and apparatuses consistent with the present
disclosure relate to a steam-vacuum cleaner with an electric power
controlling function, which is capable of maintaining a total
electric power consumed in the steam-vacuum cleaner less than a
threshold value, and a method thereof.
[0004] 2. Description of the Related Art
[0005] In general, a vacuum cleaner has a body and a brush which
are connected with each other via a connection pipe and a hose, and
it operates a motor and a filter disposed therein to draw in dust
or other foreign substances through the brush connected with the
body via the connection pipe and the hose.
[0006] Such a vacuum clear has been currently upgraded so that it
can achieve a more complete cleaning operation. That is, besides
the function of filtering dust or other foreign substances and then
discharging only the drawn-in air to the outside, the vacuum
cleaner has a function of removing a stain stuck to a floor
surface, a tile surface or a chink in the window using steam or
wet-cloth. This upgraded vacuum cleaner is called a steam-vacuum
cleaner.
[0007] Such a steam-vacuum cleaner requires an electric power
ranging from 500W to 1,500W to vaporize water with a heater. Also,
if a vacuum cleaning function is added to the steam-vacuum cleaner,
an electric power greater than above is required to drive a suction
motor.
[0008] If either one of a steam cleaning function and a vacuum
cleaning function is used, the steam-vacuum cleaner can be used
regardless of the power capacity of a cord and a wire. However, if
both the functions are simultaneously used, the steam-vacuum
cleaner requires a double electric power and thus exceeds a limit
of the power capacity of the cord and the wire. Also, if the wire
is manufactured to be thick in order to meet the increased total
electric power, there is another problem that the length of wire
becomes shorter in order to be contained in the existing cord
reel.
SUMMARY OF THE INVENTION
[0009] Exemplary embodiments of the present disclosure overcome the
above disadvantages and other disadvantages not described above.
Also, the present disclosure is not required to overcome the
disadvantages described above, and an exemplary embodiment of the
present disclosure may not overcome any of the problems described
above.
[0010] An aspect of the present disclosure provides a steam-vacuum
cleaner with an electric power controlling function, which is
capable of maintaining a total electric power less than a threshold
value in order to make it possible to perform both vacuum-steam and
vacuum cleaning operations simultaneously within the limit of
capacity of power supplied from a wire, and a method thereof.
[0011] According to an aspect of the present disclosure, there is
provided a cleaner, comprising: a suction motor which rotates to
generate a suction force; a heater which emits heat to generate a
steam; a power supply part which supplies an electric power to the
suction motor and the heater; an electric power measuring part
which measures a total electric power supplied from the power
supplier and consumed in the suction motor and the heater; and a
controller which controls at least one of a rotational velocity of
the suction motor and a magnitude of heat emitted from the heater
such that the total electric power of the suction motor and the
heater is maintained less than a threshold value.
[0012] The controller may maintain the magnitude of heat emitted
from the heater constant and adjust the rotational velocity of the
suction motor, thereby maintaining the total electric power less
than the threshold value.
[0013] The controller may control the rotational velocity of the
suction motor by means of phase control.
[0014] The controller may maintain the rotational velocity of the
suction motor constant and adjust the magnitude of heat emitted
from the heater, thereby maintaining the total electric power less
than the threshold value.
[0015] The controller may adjust the magnitude of heat emitted from
the heater and adjust the rotational velocity of the suction motor,
thereby maintaining the total electric power less than the
threshold value.
[0016] According to an aspect of the present disclosure, there is
provided a method for controlling an electric power, comprising:
comparing a total electric power with a threshold value; and if the
total electric power exceeds the threshold value, controlling at
least one of a rotational velocity of a suction motor and a
magnitude of heat emitted from a heater to maintain the total
electric power less than the threshold value.
[0017] The controlling step may comprise maintaining the magnitude
of heat emitted from the heater constant and adjusting the
rotational velocity of the suction motor, thereby maintaining the
total electric power less than the threshold value.
[0018] The controlling step may comprise adjusting the rotational
velocity of the suction motor by means of phase control.
[0019] The controlling step may comprise maintaining the rotational
velocity of the suction motor constant and adjusting the magnitude
of heat emitted from the heater, thereby maintaining the total
electric power less than the threshold value.
[0020] The controlling step may comprise adjusting the magnitude of
heat emitted from the heater and adjusting the rotational velocity
of the suction motor, thereby maintaining the total electric power
less than the threshold value.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Above and other aspects of the present disclosure will
become apparent and more readily appreciated from the following
description of the exemplary embodiments, taken in conjunction with
the accompany drawings of which:
[0022] FIG. 1 is a block diagram illustrating a steam-vacuum
cleaner according to an exemplary embodiment of the present
disclosure;
[0023] FIG. 2 is a view illustrating a manipulation part according
to an exemplary embodiment of the present disclosure;
[0024] FIG. 3 is a flowchart illustrating a method for controlling
an electric power of a steam-vacuum cleaner according to an
exemplary embodiment of the present disclosure;
[0025] FIG. 4 is a flowchart illustrating a method for controlling
an electric power of a steam-vacuum cleaner according to another
exemplary embodiment of the present disclosure; and
[0026] FIG. 5 is a flowchart illustrating a method for controlling
an electric power of a steam-vacuum cleaner according to still
another exemplary embodiment of the present disclosure.
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
[0027] Certain exemplary embodiments of the present disclosure will
be described in greater detail with reference to the accompanying
drawings.
[0028] FIG. 1 is a block diagram illustrating a steam-vacuum
cleaner according to an exemplary embodiment of the present
disclosure. Referring to FIG. 1, the steam-vacuum cleaner comprises
a manipulation part 105, a suction motor 110, a heater 115, a power
supply part 120, an electric power measuring part 125, and a
controller 130.
[0029] The manipulation part 105 is provided with a button or
switch which is disposed on one side of a handle located between a
hose and a pipe of the steam-vacuum cleaner or disposed on a top of
a body, and receives a command from a user and transmits the
command to the controller 130, which will be described in detail
below. The manipulation part 105 will be described in detail with
reference to FIG. 2. FIG. 2 is a view illustrating the manipulation
part 105 according to the exemplary embodiment of the present
disclosure.
[0030] Referring to FIG. 2, the manipulation part 105 comprises a
function switch 105b to select a "vacuum" cleaning function,
"vacuum & steam" cleaning function, and "steam" cleaning
function of the steam-vacuum cleaner, and a control switch 105a to
adjust the degree of vacuum and steam.
[0031] The suction motor 110 is rotated to generate a vacuum in the
body of the steam-vacuum cleaner and thus generate a suction force,
thereby drawing in dirt or dust. The suction force is adjusted
according to a rotational velocity of the suction motor 110, which
is controlled by means of phase control. Briefly, the phase control
will be described. The phase control, which is one of methods for
controlling an electric power, adjusts a conduction angle of an
input voltage waveform and thereby controls a supplied electric
power. In general the phase control uses a control element called
"triac".
[0032] The heater 115 emits heat and thus vaporizes water flowing
into the steam-vacuum cleaner. The heater 115 consumes a constant
electric power to emit heat and adjusts an amount of vapor
according to an amount of water.
[0033] The power supply part 120 receives an external electric
power through a cord and a wire provided at one side of the body
(not shown) of the steam-vacuum cleaner, and supplies the electric
power to the respective elements of the steam-vacuum cleaner.
Particularly, the power supply part 120 supplies the electric power
to the suction motor 110 and the heater 115 through the electric
power measuring part 125.
[0034] The electric power measuring part 125 measures an electric
power supplied from the power supply unit 120 to the suction motor
110 and the heater 115 and transmits the result of measuring to the
controller 130.
[0035] The controller 130 controls the entire operation of the
steam-vacuum cleaner. The controller 130 receives a user's command
through the manipulation part 105 and controls at least one of the
suction motor 110 and the heater 115 to perform any one of cleaning
functions "vacuum", "vacuum & steam", and "steam".
[0036] Particularly, if the suction motor 110 and the heater 115
are simultaneously operated to perform the "vacuum & steam"
cleaning function, the controller 130 controls at least one of the
suction motor 110 and the heater 115 based on the total electric
power which is measured by the electric power measuring part 125,
thereby maintaining the total electric power less than a threshold
value. The threshold value refers to a maximum electric power which
can be input from the outside through the cord and the wire of the
steam-vacuum cleaner.
[0037] More specifically, the controller 130 maintains the
magnitude of heat emitted from the heater 115 constant and adjusts
the rotational velocity of the suction motor 110, thereby
maintaining the total electric power less than the threshold
value.
[0038] That is, the controller 130 maintains the magnitude of heat
emitted from the heater 115 constant and decreases the rotational
velocity of the suction motor 110 by means of phase control,
thereby decreasing the electric power of the suction motor 110.
When the total electric power decreases below the threshold value,
the controller 130 stops the phase control of the suction motor 110
and maintains the rotational velocity constant. Accordingly, the
total electric power of the steam-vacuum cleaner is maintained less
than the threshold value.
[0039] If one of "vacuum" and "steam" cleaning functions is
selected, the controller 130 controls one of the suction motor 110
and the heater 115 to be operated according to the selected
cleaning function.
[0040] That is, if a "vacuum" cleaning function is selected, the
controller 130 controls the suction motor 110 to be operated within
the maximum limit of the rotational velocity, without operating the
heater 115. The controller 130 intercepts the power supply to the
heater 115 and supplies the maximum electric power within the
threshold to the suction motor 110, thereby enabling a maximum
suction force to be used.
[0041] If a "steam" cleaning function is selected, the controller
130 intercepts the power supply to the suction motor 110 and
maintains the magnitude of heat emitted from the heater 115
constant.
[0042] As described above, the total electric power is maintained
less than the threshold value by means of phase control of the
suction motor 110 if the suction motor 110 and the heater 115 are
concurrently operated to perform a "vacuum & steam" cleaning
function. Hereinafter, another method to maintain the total
electric power less than the threshold value will be described.
[0043] According to another method for maintaining the total
electric power less than the threshold value, the controller 130
maintains the rotational velocity of the suction motor 110 constant
and adjusts the magnitude of heat emitted from the heater 115,
thereby maintaining the total electric power less than the
threshold value.
[0044] More specifically, the controller 130 maintains the
rotational velocity of the suction motor 110 constant and decreases
the magnitude of heat emitted from the heater 115, thereby
decreasing the electric power of the heater 115. When the total
electric power decreases below the threshold value, the controller
130 controls the magnitude of heat emitted from the heater 115 to
be maintained constant. Also, the magnitude of heat emitted from
the heater 115 is adjusted within a minimum limit that is required
to vaporize the water flowing into the heater 115.
[0045] According to still another method for maintaining the total
electric power less than the threshold value, the controller 130
adjusts both the rotational velocity of the suction motor 110 and
the magnitude of heat emitted from the heater 115, thereby
maintaining the total electric power less than the threshold
value.
[0046] More specifically, the controller 130 decreases the
rotational velocity of the suction motor 110 by means of the phase
control, and also decrease the magnitude of heat emitted from the
heater 115, thereby decreasing the electric power of the suction
motor 110 and the heater 115. When the electric power decreases
below the threshold value, the controller 130 stops the phase
control of the suction motor 110 and maintains the rotational
velocity and the magnitude of heat emitted from the heater 115
constant. Also, the magnitude of heat emitted from the heater 115
is adjusted within a minimum limit that is required to vaporize the
water flowing into the heater 115.
[0047] Hereinafter, a method for maintaining a total electric power
less than a threshold value of the steam-vacuum cleaner shown in
FIG. 1 will be described. FIG. 3 is a flowchart illustrating a
method for controlling an electric power of the steam-vacuum
cleaner according to an exemplary embodiment of the present
disclosure.
[0048] As shown in FIG. 3, the controller 130 checks a user's
command transmitted through the manipulation part 105 (operation
S310). That is, the controller 130 checks which one of "vacuum",
"vacuum & steam", and "steam" cleaning functions is selected
through the function switch 105a.
[0049] If the "vacuum & steam" cleaning function is selected
(operation S320-Y), the controller 130 controls the power supply
part 120 to supply an electric power to the suction motor 110 and
the heater 115 and perform the "vacuum & steam" cleaning
function (operation S330).
[0050] The controller 130 determines whether or not the total
electric power measured by the electric power measuring part 125
exceeds a threshold value (operation S340). That is, the controller
130 determines whether or not the total electric power supplied to
the suction motor 110 and the heater 115 exceeds a threshold value
which is a maximum electric power that can be input from the
outside through the cord and the wire of the steam-vacuum
cleaner.
[0051] If the total electric power exceeds the threshold value
(operation S340-Y), the controller 130 maintains the magnitude of
heat emitted from the heater constant and controls the rotational
velocity of the suction motor 110, thereby maintaining the total
electric power less than the threshold value (operation S350). If
the total electric power does not exceed the threshold value
(operation S340-N), the controller may operate the "vacuum &
steam" cleaning function (operation S330) and controller 130 may
again determine whether or not the total electric power measured by
the electric power measuring part 125 exceeds a threshold value
(operation S340).
[0052] More specifically, the controller 130 maintains the
magnitude of heat emitted from the heater 115 constant and
decreases the rotational velocity of the suction motor 110 by means
of phase control, thereby decreasing the electric power of the
suction motor 110. Also, when the total electric power decreases
below the threshold value, the controller 130 stops the phase
control of the suction motor 110 and maintains the rotational
velocity constant.
[0053] On the other hand, if the "vacuum" cleaning function is
selected (operation S360-Y), the controller 130 controls the
suction motor 110 to be operated within a maximum limit of the
rotational velocity, without operating the heater 115 (operation
S370). That is, the controller 130 intercepts the power supply to
the heater 115 and supplies a maximum electric power within the
threshold to the suction motor 110, thereby generating a maximum
suction force.
[0054] If the "steam" cleaning function is selected (operation
S380-Y), the controller 130 operates the heater 115 with the
constant magnitude of heat emitted from the heater 115, without
rotating the suction motor 110 (operation S390).
[0055] Hereinafter, a method for maintaining a total electric power
less than a threshold value in a different way, instead of using
the phase control, will be described with reference to FIGS. 4 and
5. FIGS. 4 and 5 are flowcharts illustrating this method when the
"vacuum & steam" cleaning function is selected. The same
procedure as in FIG. 3 is applied when the "vacuum" or "steam"
cleaning function is selected and thus its description will be
omitted.
[0056] FIG. 4 is a flowchart illustrating a method for controlling
an electric power of a steam-vacuum cleaner according to another
embodiment of the present disclosure.
[0057] Referring to FIG. 4, the controller 130 controls the power
supply part 120 to supply an electric power to the suction motor
110 and the heater 115 and operates a "vacuum & steam" cleaning
function (operation S410).
[0058] The controller 130 determines whether or not a total
electric power measured by the electric power measuring part 125
exceeds a threshold value (operation S420). That is, the controller
130 determines whether or not the total electric power supplied to
the suction motor 110 and the heater 115 exceeds a threshold which
is a maximum electric power that can be input from the outside
through the cord and the wire of the steam-vacuum cleaner.
[0059] If the total electric power exceeds the threshold (operation
S420-Y), the controller 130 maintains the rotational velocity of
the suction motor 110 constant and controls the magnitude of heat
emitted from the heater 115, thereby maintaining the total electric
power less than the threshold value (operation S430). If the total
electric power does not exceed the threshold value (operation
S420-N), the controller may operate the "vacuum & steam"
cleaning function (operation S410) and controller 130 may again
determine whether or not the total electric power measured by the
electric power measuring part 125 exceeds a threshold value
(operation S420).
[0060] More specifically, the controller 130 maintains the
rotational velocity of the suction motor 110 constant and decreases
the magnitude of heat emitted from the heater 115, thereby
decreasing the electric power of the heater 115. When the total
electric power decreases below the threshold value, the controller
130 maintains the magnitude of heat emitted from the heater 115
constant. Also, the magnitude of heat is adjusted within a minimum
limit that is required to vaporize the water flowing into the
heater 115.
[0061] FIG. 5 is a flowchart illustrating a method for controlling
an electric power of a steam-vacuum cleaner according to another
exemplary embodiment of the present disclosure.
[0062] Referring to FIG. 5, the controller 130 controls the power
supply part 120 to supply an electric power to the suction motor
110 and the heater 115 and operates the "vacuum & steam"
cleaning function (operation S510).
[0063] The controller 130 determines whether or not a total
electric power measured by the electric power measuring part 125
exceeds a threshold value (operation S520). That is, the controller
130 determines whether or not the total electric power supplied to
the suction motor 110 and the heater 115 exceeds a threshold value
which is a maximum electric power that can be input from the
outside through the cord and the wire of the steam-vacuum
cleaner.
[0064] If the total electric power exceeds the threshold value
(operation S520-Y), the controller 130 controls the rotational
velocity of the suction motor 110 and the magnitude of heat emitted
from the heater 115, thereby maintaining the total electric power
less than the threshold value (operation S530). If the total
electric power does not exceed the threshold value (operation
S520-N), the controller may operate the "vacuum & steam"
cleaning function (operation S510) and controller 130 may again
determine whether or not the total electric power measured by the
electric power measuring part 125 exceeds a threshold value
(operation S520).
[0065] More specifically, the controller 130 decreases the
rotational velocity of the suction motor 110 by means of phase
control, and decreases the magnitude of heat emitted from the
heater 115, thereby decreasing the total electric power of the
suction motor 110 and the heater 115. When the total electric power
decreases below the threshold value, the controller 130 stops the
phase control of the suction motor 110 and maintains the rotational
velocity and the magnitude of heat emitted from the heater 115
constant. Also, the magnitude of heat emitted from the heater is
adjusted within a minimum limit that is required to vaporize the
water flowing into the heater 115.
[0066] As described above, the total electric power of the
steam-vacuum cleaner is maintained less than a threshold value by
controlling the rotational velocity of the suction motor 110 and
the magnitude of heat emitted from the heater 115, and thus the
steam and vacuum cleaning functions are simultaneously performed
within the limit of power capacity available in the wire. Also,
when one of the suction motor and the heater is used, the vacuum
cleaner takes an advantage of a high output steam jet or high
output suction force.
[0067] Although a few exemplary embodiments of the present
disclosure have been shown and described, it will be appreciated by
those skilled in the art that changes may be made in these
embodiments without departing from the principles and spirit of the
disclosure, the scope of which is defined in the appended claims
and their equivalents.
* * * * *