U.S. patent application number 15/031622 was filed with the patent office on 2016-08-25 for washing machine and washing control method of same.
The applicant listed for this patent is HAIER GROUP CORPORATION, QINGDAO HAIER WASHING MACHINE CO.,LTD.. Invention is credited to Dafeng FANG, Qiuying GAO, Peishi LV, Jie XU, Haojun ZHANG.
Application Number | 20160244905 15/031622 |
Document ID | / |
Family ID | 52992176 |
Filed Date | 2016-08-25 |
United States Patent
Application |
20160244905 |
Kind Code |
A1 |
LV; Peishi ; et al. |
August 25, 2016 |
WASHING MACHINE AND WASHING CONTROL METHOD OF SAME
Abstract
A washing machine and a washing control method of the washing
machine thereof. The washing machine includes an outer drum, an
inner drum, an impeller, and a driving apparatus. The driving
apparatus is a dual-rotor direct drive motor including two rotors
and one stator. One rotor is axially connected to the inner drum,
another rotor is axially connected to the impeller. During washing,
the two rotors respectively drive the impeller and the inner drum
to rotate independently, such that the inner drum and the impeller
rotate opposite to each other, and after each rotation cycle, the
inner drum and the impeller reversely rotate. The washing control
method includes driving, the driving apparatus, the inner drum and
the impeller to reverse asynchronously, so as to enable the
impeller and the inner drum to rotate in a same direction within a
time difference between reversals of the impeller and the inner
drum.
Inventors: |
LV; Peishi; (Qingdao,
Shandong, CN) ; GAO; Qiuying; (Qingdao, Shandong,
CN) ; XU; Jie; (Qingdao, Shandong, CN) ; FANG;
Dafeng; (Qingdao, Shandong, CN) ; ZHANG; Haojun;
(Qingdao, Shandong, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HAIER GROUP CORPORATION
QINGDAO HAIER WASHING MACHINE CO.,LTD. |
Qingdao, Shandong
Qingdao, Shandong |
|
CN
CN |
|
|
Family ID: |
52992176 |
Appl. No.: |
15/031622 |
Filed: |
December 18, 2013 |
PCT Filed: |
December 18, 2013 |
PCT NO: |
PCT/CN2013/089800 |
371 Date: |
April 22, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
D06F 37/40 20130101;
D06F 2204/065 20130101; D06F 21/08 20130101; D06F 35/006 20130101;
D06F 2220/00 20130101 |
International
Class: |
D06F 37/40 20060101
D06F037/40; D06F 21/08 20060101 D06F021/08; D06F 35/00 20060101
D06F035/00 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 23, 2013 |
CN |
201310501494.7 |
Oct 23, 2013 |
CN |
201310502654.X |
Claims
1. A washing control method of a washing machine, wherein the
washing machine comprises an outer drum, an inner drum, an
impeller, and a driving apparatus, wherein in a washing process,
the driving apparatus drives the inner drum and the impeller to
rotate opposite to each other, and after each rotation cycle, the
inner drum and the impeller reversely rotate, comprising: the
driving apparatus driving the inner drum and the impeller to
reverse asynchronously, so as to enable the impeller and the inner
drum to rotate in a same direction within a time difference between
reversals of the impeller and the inner drum.
2. The washing control method of the washing machine according to
claim 1, wherein the impeller and the inner drum reverse
asynchronously, and the time difference between the reversals is
greater than 0 and less than 5 S.
3. The washing control method of the washing machine according to
claim 1, wherein the driving apparatus drives the inner drum or the
impeller to delay or advance a reversal, and a set time for
delaying or advancing the reversal is greater than 0 and less than
5 S.
4. The washing control method of the washing machine according to
claim 3, wherein within each rotation cycle, a time of a reversal
of the inner drum or impeller, as compared with a time of a
reversal of the impeller or inner drum, is delayed or advanced by
0.05 to 3 S.
5. The washing control method of the washing machine according to
claim 1, wherein when washing starts, the impeller and the inner
drum rotate in opposite to each other, and a delayed starting time
between the impeller and the inner drum is greater than 0 and less
than or equal to 3 S.
6. The washing control method of the washing machine according to
claim 5, the impeller or inner drum first rotates, after a delay of
a set time, the inner drum or impeller further rotates in an
opposite direction, each rotation cycle time of the inner drum is
equal to that of the impeller, and the set time of the delay is
less than the rotation cycle time.
7. The washing control method of the washing machine according to
claim 1, wherein in the washing process, a revolution speed ratio
between the inner drum and the impeller is 1:(1 to 5); and a
revolution speed of the impeller is 40 to 150 revolutions per
minute.
8. The washing control method of the washing machine according to
claim 1, wherein a time when the driving apparatus drives the inner
drum and the impeller to rotate in opposite to each other within
each rotation cycle is 1 to 5 S.
9. The washing control method of the washing machine according to
claim 1, wherein speeds of the inner drum and the impeller that
rotate in a same direction are different from speeds of the inner
drum and the impeller that rotate opposite to each other.
10. The washing control method of the washing machine according to
claim 1, wherein a speed of rotation of the inner drum and/or
impeller in each washing process is changeable, and a rotation
speed is increased or reduced corresponding to a set changing
rule.
11. A washing control method of a washing machine, wherein the
washing machine comprising an outer drum, an inner drum, an
impeller, and a driving apparatus, comprising: in a washing
process, the driving apparatus driving the impeller and the inner
drum to rotate in a manner of switching between rotations in a same
direction and rotations in opposite directions.
12. The washing control method of the washing machine according to
claim 11, wherein after driving the impeller and the inner drum to
rotate in the same direction or opposite to each other by a first
set time, the driving apparatus stops driving, drives the impeller
and the inner drum to rotate opposite to each other or in the same
direction by a second set time, stops driving, and then drives the
impeller and the inner drum to rotate opposite to each other or in
the same direction by a third set time, and wherein the foregoing
process is repeated, wherein the first, second and third set times
are the same of different from each other.
13. The washing control method of the washing machine according to
claim 11, wherein when the washing starts, the impeller and the
inner drum rotate in opposite to each other, and a delayed starting
time between the impeller and the inner drum is greater than 0 and
less than or equal to 3 S.
14. The washing control method of the washing machine according to
claim 13, wherein the impeller or inner drum first rotates, after a
delay of a set time, the inner drum or impeller further rotates in
an opposite direction, each rotation cycle time of the inner drum
is equal to that of the impeller, and the set time of the delay is
less than the rotation cycle time.
15. The washing control method of the washing machine according to
claim 11, wherein in the washing process, a revolution speed ratio
between the inner drum and the impeller is 1:(1 to 5); and a
revolution speed of the impeller is 40 to 150 revolutions per
minute.
16. The washing control method of the washing machine according to
claim 11, wherein a time when the driving apparatus drives the
inner drum and the impeller to rotate in opposite to each other
within each rotation cycle is 1 to 5 S.
17. The washing control method of the washing machine according to
claim 11, wherein speeds of the inner drum and the impeller that
rotate in a same direction are different from speeds of the inner
drum and the impeller that rotate opposite to each other.
18. The washing control method of the washing machine according to
claim 11, wherein a speed of rotation of the inner drum and/or
impeller in each washing process is changeable, and a rotation
speed is increased or reduced corresponding to a set changing
rule.
19. A washing control method of a washing machine, wherein the
washing machine comprises an outer drum, an inner drum, an
impeller, and a driving apparatus, wherein in a washing process,
the driving apparatus drives the inner drum and the impeller to
rotate opposite to each other, and after each rotation cycle, the
inner drum and the impeller reversely rotate, comprising: the
driving apparatus driving the inner drum and the impeller to
reverse asynchronously, so as to enable one of the impeller and the
inner drum to rotate and the other to stay stationary within a time
difference between reversals of the impeller and the inner
drum.
20. The washing control method of the washing machine according to
claim 19, wherein when each rotation cycle ends, the driving
apparatus drives the inner drum to stop rotating, the impeller to
reversely rotate, and the inner drum to further reversely rotate
after a set time, and the set time is greater than 0 and less than
5 S.
21. The washing control method of the washing machine according to
claim 19, wherein when each rotation cycle is about to end, the
driving apparatus drives the inner drum to stop rotating, the
impeller to continue rotating, and the inner drum and the impeller
to further reversely rotate after a set time, and the set time is
greater than 0 and less than 5 S.
22. The washing control method of the washing machine according to
claim 19, wherein a speed of rotation of the impeller when the
inner drum is stationary is different from a speed of rotation of
the impeller when the inner drum and impeller rotate in different
directions.
23. A washing control method of a washing machine, the washing
machine comprising an outer drum, an inner drum, an impeller, and a
driving apparatus, comprising: in a washing process, the driving
apparatus driving the impeller and the inner drum to move by
switching between at least two of three control manners of
rotations in a same direction, rotations in opposite directions,
and the impeller rotating while the inner drum being
stationary.
24. A washing machine utilizing the washing method according to
claim 1, wherein the driving apparatus is a dual-rotor direct drive
motor comprising two rotors and one stator, wherein one rotor is
axially connected to the inner drum, another rotor is axially
connected to the impeller, and in the washing process, the two
rotors respectively drive the impeller and the inner drum to rotate
independently.
25. The washing machine according to claim 24, wherein the two
rotors are respectively an outer rotor and an inner rotor, and the
stator is disposed between the inner and outer rotors.
26. The washing machine according to claim 24, wherein the two
rotors are both inner rotors or outer rotors, and the stator is
accordingly an outer stator or an inner stator.
27. A washing machine utilizing the washing method according to
claim 11, wherein the driving apparatus is a dual-rotor direct
drive motor comprising two rotors and one stator, wherein one rotor
is axially connected to the inner drum, another rotor is axially
connected to the impeller, and in the washing process, the two
rotors respectively drive the impeller and the inner drum to rotate
independently.
28. A washing machine utilizing the washing method according to
claim 19, wherein the driving apparatus is a dual-rotor direct
drive motor comprising two rotors and one stator, wherein one rotor
is axially connected to the inner drum, another rotor is axially
connected to the impeller, and in the washing process, the two
rotors respectively drive the impeller and the inner drum to rotate
independently.
29. A washing machine utilizing the washing method according to
claim 23, wherein the driving apparatus is a dual-rotor direct
drive motor comprising two rotors and one stator, wherein one rotor
is axially connected to the inner drum, another rotor is axially
connected to the impeller, and in the washing process, the two
rotors respectively drive the impeller and the inner drum to rotate
independently.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a washing machine, and more
particularly, to a washing control method of a washing machine, in
which rotation manners of an impeller and an inner drum are
separately controlled, and a washing machine thereof.
BACKGROUND OF THE INVENTION
[0002] A structure of a conventional washing machine is constituted
by an inner drum, an outer drum, an agitator, a transmission
system, a control system, and a housing. During washing, the inner
drum does not rotate, and the agitator rotates alternately in
forward and backward directions to move clothes through the water
in the inner drum so as to implement washing. This washing method
is found to have some disadvantages: 1. there exists a single
washing manner, and it is difficult to improve a rate of washing
ability; 2. strength of a water flow is weak, and clothes are
easily twisted. In order to overcome the foregoing disadvantages,
some washing machine manufacturers design a "rotary drum" washing
machine, and a method thereof is that: during washing, an inner
drum is in a free state, when an agitator rotates, and the inner
drum rotates by means of a reaction force generated from the
rotation of the agitator, so as to enable the inner drum and the
agitator to rotate opposite to each other, thereby achieving a
purpose of "scrubbing clothes".
[0003] However, a disadvantage still exists in this method because
the inner drum has no power, the rotation strength of the inner
drum is weak, the agitator only rotates forward and backward on a
bottom of the drum, an effect of "scrubbing clothes" is little, a
washing effect is not improved obviously, and the problem of
twisting clothes still cannot be resolved in a favorable manner.
Therefore, there still exists a need to address the
disadvantages.
[0004] Chinese Publication No. 01127557.X discloses a bidirectional
washing method and a washing machine thereof. The washing machine
includes an inner drum, an agitator, a motor, and a power
transmission mechanism. The washing machine also includes a power
transmission mechanism that is connected to the inner drum and has
a rotation direction opposite to that of the agitator. During
washing, both the inner drum and agitator are driven to perform
washing in opposite directions. Because the inner drum is provided
with the power transmission mechanism, during washing, both of the
inner drum and agitator are driven by power, in a manner of one-way
in two-way out, i.e., the inner drum and agitator are separately
driven to rotate opposite to each other. However, because the power
transmission mechanisms are used for transmission in this driving
manner, their reversing manner and rotation speed are both fixed,
the inner drum or agitator cannot be freely independently driven to
reverse, and the inner drum and agitator must rotate opposite to
each other.
[0005] For a conventional impeller washing machine, a motor
transmits power to a deceleration clutch through actuating a belt
by a belt pulley, the deceleration clutch converts a high rotation
speed of the motor into lower rotation speeds required in different
washing processes of the washing machine by using an internal gear
structure thereof, and meanwhile, according to different washing
manners, the deceleration clutch uses different gear structures to
transfer different rotation directions and rotation manners to the
impeller.
[0006] In such a structure, because the deceleration clutch and
motor are horizontally arranged at the bottom of the outer drum,
the structure of the whole system is relative large. On the other
hand, the deceleration clutch is located at a central portion of
the outer drum, the motor deviates from a position of the central
portion, and a center of the whole structure of the bottom of the
outer drum deviates from a central hole of the outer drum. In a
working process of the washing machine, while the motor actuates
the deceleration clutch to work, torque is generated relative to
the center of the outer drum during a rotation process of the
motor, instability of the whole system is increased, and during the
washing process, the washing machine generates relatively high
noise and large vibration.
[0007] In order to alleviate a phenomenon that the washing machine
generates noise and vibration during a working process, many
existing washing machines use direct drive motors, where belt
pulley and belt apparatuses are removed, and the deceleration
clutch is directly longitudinally mounted on and connected to the
motor, and in this way, a center of gravity of the structure of the
bottom of the outer drum is basically at a position of the central
hole of rotation of the outer drum. Such a structure improves
transmission efficiency and stability of the motor and meanwhile,
reduces noise in a running process.
[0008] However, in the existing structures where the direct drive
motor is used, because a deceleration clutch is still used, during
a washing process, a rotation manner of a conventional dual-power
washing machine or a fully-automatic washing machine is still used
as a rotation manner of the inner drum and the impeller, and this
washing machine do not improve the washing water flow and the rate
of washing ability.
[0009] Therefore, a heretofore unaddressed need exists in the art
to address the aforementioned deficiencies and inadequacies.
SUMMARY OF THE INVENTION
[0010] One of the objectives of the present invention is to provide
a washing control method for freely controlling relative rotation
directions of an inner drum and an impeller during a washing
process so as to solve the disadvantages of the prior art.
[0011] Another purpose of the present invention is to provide a
washing control method for cyclically reversing an inner drum and
an impeller that rotate opposite to each other and rotate in a same
direction during a washing process.
[0012] Still another purpose of the present invention is to provide
a washing control method where an inner drum and an impeller have
different actions during a washing process.
[0013] Further another purpose of the present invention is to
provide a washing machine that separately drives an inner drum and
an impeller to rotate by using a dual-rotor motor and controlling
relative actions and rotation directions of the inner drum and the
impeller.
[0014] In order to solve the foregoing technical problems, in one
aspect, the present invention includes a washing control method of
a washing machine, where the washing machine includes an outer
drum, an inner drum, an impeller, and a driving apparatus. In a
washing process, the driving apparatus drives the inner drum and
the impeller to rotate opposite to each other, and after each
rotation cycle, the inner drum and the impeller reversely rotate.
The washing method includes driving, by the driving apparatus, the
inner drum and the impeller to reverse asynchronously, so as to
enable the impeller and the inner drum to rotate in a same
direction within a time difference between reversals of the
impeller and the inner drum.
[0015] In one embodiment, the impeller and the inner drum reverse
asynchronously, and the time difference between the reversals is
greater than 0 and less than 5 S.
[0016] In one embodiment, the driving apparatus drives the inner
drum or the impeller to delay or advance a reversal, and a set time
for delaying or advancing the reversal is greater than 0 and less
than 5 S.
[0017] In one embodiment, within each rotation cycle, a time of a
reversal of the inner drum or impeller is earlier or later than a
time of a reversal of the impeller or inner drum by 0.05 to 3
S.
[0018] In one embodiment, when washing starts, the impeller and the
inner drum rotate opposite to each other, and a delayed starting
time between the two is greater than 0 and less than or equal to 3
S.
[0019] In one embodiment, the impeller or inner drum first rotates,
after a delay of a set time, the inner drum or impeller further
rotates in an opposite direction, each rotation cycle time of the
inner drum is equal to that of the impeller, and the set time of
the delay is less than the rotation cycle time.
[0020] In another aspect, the present invention provides a washing
control method of a washing machine including an outer drum, an
inner drum, an impeller, and a driving apparatus. The washing
method includes, during a washing process, driving, by the driving
apparatus, the impeller and the inner drum to rotate in a manner of
switching between rotation in a same direction and rotation in
opposite directions.
[0021] In one embodiment, after driving the impeller and the inner
drum to rotate in the same direction or opposite to each other by a
set time, the driving apparatus stops driving, drives the impeller
and the inner drum to rotate opposite to each other or in a same
direction by a set time, stops driving, and then drives the
impeller and the inner drum to rotate opposite to each other or in
a same direction by a set time. The foregoing process is
repeated.
[0022] In yet another aspect, the present invention provides a
washing control method of a washing machine, where the washing
machine includes an outer drum, an inner drum, an impeller, and a
driving apparatus. In a washing process, a driving apparatus drives
the inner drum and the impeller to rotate opposite to each other,
and after each rotation cycle, the inner drum and the impeller
reversely rotate. The washing method includes driving, by the
driving apparatus, the inner drum and the impeller to reverse
asynchronously, so as to enable one of the impeller and the inner
drum to rotate and the other to stay stationary within a time
difference between reversals of the impeller and the inner
drum.
[0023] In one embodiment, when each rotation cycle ends, the
driving apparatus drives the inner drum to stop rotating, the
impeller to reversely rotate, and the inner drum to further
reversely rotate after a set time, and the set time is greater than
0 and less than 5 S.
[0024] Alternatively, in another embodiment, when each rotation
cycle is about to end, the driving apparatus drives the inner drum
to stop rotating, the impeller to continue rotating, and the inner
drum and the impeller to further reversely rotate after a set time,
and the set time is greater than 0 and less than 5 S.
[0025] In a further aspect, the present invention provides a
washing control method of a washing machine including an outer
drum, an inner drum, an impeller, and a driving apparatus. The
method includes, in a washing process, driving, the driving
apparatus, the impeller and the inner drum to move by switching
between at least two of three control manners of rotations in a
same direction, rotations in opposite directions, and the impeller
rotating while the inner drum being stationary.
[0026] In one embodiment, in the washing process, a rotation speed
ratio between the inner drum and the impeller is 1:(1 to 5); and a
rotation speed of the impeller is 40 to 150 revolutions per
minute.
[0027] In one embodiment, a time when the driving apparatus drives
the inner drum and the impeller to rotate opposite to each other
within each rotation cycle is 1 to 5 S.
[0028] In one embodiment, in the washing machine according to the
present invention, a rotation speed of the inner drum and/or
impeller in each washing process is changeable, and the rotation
speed is increased or reduced corresponding to a set changing
rule.
[0029] In one embodiment, speeds of the inner drum and the impeller
that rotate in a same direction are different from speeds of the
inner drum and the impeller that rotate opposite to each other; a
rotation speed of the impeller when the inner drum is stationary is
different from a rotation speed of the impeller when the inner drum
and impeller rotate opposite to each other.
[0030] In one embodiment, speeds of the inner drum and the impeller
that rotate in a same direction are less than speeds of the inner
drum and the impeller that rotate opposite to each other; a
rotation speed of the impeller when the inner drum is stationary is
less than a rotation speed of the impeller when the inner drum and
impeller rotate opposite to each other.
[0031] In one embodiment, when the inner drum and the impeller
rotate opposite to each other in each rotation cycle, a change of
the rotation speed(s) of the inner drum and/or impeller may also be
independently controlled.
[0032] In the washing machine according to the present invention,
the driving apparatus is a dual-rotor direct drive motor, including
two rotors and one stator, where one rotor is connected to an axis
of the inner drum, another rotor is connected to an axis of the
impeller, and during washing, the two rotors respectively drive the
impeller and the inner drum to rotate independently.
[0033] In one embodiment, the two rotors are respectively an outer
rotor and an inner rotor, and the stator is disposed between the
inner and outer rotors.
[0034] In one embodiment, both of the two rotors are inner rotors
or outer rotors, and the stator is accordingly an outer stator or
an inner stator.
[0035] The foregoing technical solutions of the present invention,
as compared with the prior art, have the following beneficial
effects.
[0036] In the washing control method of the washing machine
according to the present invention, the inner drum and the impeller
rotate opposite to each other. After each rotation cycle, the inner
drum and the impeller reversely rotate and still rotate opposite to
each other, and within two rotation cycles, a motion manner of the
inner drum or impeller is changed, so that the inner drum and the
impeller rotate in the same direction or one of the inner drum and
the impeller rotation rotates, and the other is stationary. This
washing method changes a washing water flow, alleviates clothes
twisting resulted from simultaneous reversal of the inner drum and
impeller, and alleviates wearing of the clothes.
[0037] In the washing machine according to the present invention,
two rotors are respectively connected to an axis of the inner drum
and an axis of the impeller to respectively drive the inner drum
and impeller to rotate, and such a structure reduces, to a greater
extent, a weight, a column, and costs of a driving system, thereby
improving transmission efficiency and stability. Because a
deceleration clutch apparatus is omitted, control of the present
invention is more convenient.
[0038] During a washing process of the washing machine of the
present invention, the impeller and inner drum are separately
driven to rotate by means of correspondingly connected rotors,
during washing, when the impeller and inner drum rotate either in a
same direction or opposite to each other, a rotation direction is
directly controlled by using a rotor, and during dewatering, the
impeller and inner drum are controlled to rotate in a same
direction and at a same speed. In this process, power transmission
directly driven by two rotors is used, a conventional
implementation manner of transferring torque by merely depending on
gear reduction is broken through, and because there is no force
division and deceleration structure therebetween, loss caused by
intermediate energy transfer is reduced, and meanwhile, noise is
reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0039] FIG. 1 is a schematic diagram of dual-rotor motor driving of
a washing machine according to one embodiment of the present
invention.
[0040] FIG. 2 is another schematic diagram of dual-rotor motor
driving of a washing machine according to one embodiment of the
present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0041] Exemplary embodiments of the present invention are further
described in detail below with reference to the accompanying
drawings.
[0042] As shown in FIG. 1 and FIG. 2, the impeller washing machine
according to the present invention includes an outer drum 1, an
inner drum 2, an impeller 3, and a driving apparatus; the driving
apparatus is a dual-rotor motor that separately controls actions of
the inner drum and the impeller, and the dual-rotor motor directly
drives impeller and the inner drum to act; the dual-rotor motor
includes two rotors and one stator, which are respectively, a first
rotor 4, a second rotor 5, and a stator 6; the first rotor 4 is
connected to an inner drum axis 21, the second rotor 5 is connected
to an impeller axis 31, the inner drum axis 21 is hollow, the
impeller axis 31 is coaxially disposed inside the inner drum axis
21, and the first rotor 4, second rotor 5, and stator 6, as well as
the impeller axis 31 are disposed coaxially. In the dual-rotor
motor in FIG. 1, the first rotor 4 is an outer rotor, the second
rotor 5 is an inner rotor; and in the dual-rotor motor in FIG. 2,
the first rotor 4 is an inner rotor, and the second rotor 5 is an
outer rotor. In addition to the dual-rotor motor, the driving
apparatus of the washing machine may be two motors that are
respectively connected to the inner drum axis and impeller axis, so
as to drive them separately, or another driving apparatus having
two independent power inputs.
[0043] In the washing control method of a washing machine according
to the present invention, an inner drum and an impeller rotate
opposite to each other, after each rotation cycle, the inner drum
and the impeller reversely rotate and still rotate opposite to each
other, and within two rotation cycles/before each rotation cycle
ends, a motion manner of the inner drum or impeller is changed, so
that the inner drum and the impeller rotate in a same direction or
one of the inner drum and the impeller rotation rotates, and the
other is stationary. This rotation cycle is a cycle time when the
inner drum and the impeller rotate opposite to each other, that is,
after the impeller rotates forward and the inner drum rotates
backward for a cycle, in a next cycle, the impeller rotates
backward and the inner drum rotates forward. The present invention
makes further improvement on the basis of an existing washing
method of a dual-power washing machine, and implements cyclic
rotation in a manner that the inner drum and impeller rotate
opposite to each other, rotate in a same direction, or rotate
opposite to each other and then rotate in a same direction, and
during dewatering, the impeller and the inner drum are driven to
rotate in a same direction and at a same speed.
Embodiment 1
[0044] In this embodiment, in the washing machine, after each
rotation cycle ends, the driving apparatus drives the inner drum to
reverse and the impeller to continue rotating to delay the
reversal, a set time of the delayed reversal is 0.05 to 3 S, that
is, after each cycle that the inner drum and the impeller rotate
opposite to each other ends, the inner drum first reversely
rotates, and the impeller continues rotating in an original
rotation direction (at this time, the impeller and the inner drum
rotate in a same direction), after the inner drum reversely rotates
by 0.05 to 3 S, the impeller further reversely rotates (at this
time, the impeller and the inner drum rotate opposite to each
other), and a next cycle that they rotate opposite to each other is
entered; during a reversal stage of 0.05 to 3 S, the inner drum and
the impeller rotate in a same direction.
Embodiment 2
[0045] In this embodiment, in the washing machine, after each
rotation cycle ends, the driving apparatus drives the impeller to
reverse and the inner drum to continue rotating to delay the
reversal, a set time of the delayed reversal is 0.1 to 2.5 S, that
is, after each cycle that the inner drum and the impeller rotate
opposite to each other ends, the impeller first reversely rotates,
and the inner drum continues rotating in an original rotation
direction (at this time, the impeller and the inner drum rotate in
a same direction), after the impeller reversely rotates by 0.1 to
2.5 S, the inner drum further reversely rotates (at this time, the
impeller and the inner drum rotate opposite to each other), and a
next cycle that they rotate opposite to each other is entered;
during a reversal stage of 0.1 to 2.5 S, the inner drum and the
impeller rotate in a same direction.
Embodiment 3
[0046] The washing machine of this embodiment differs from the
foregoing embodiments in that: when each rotation cycle is about to
ends, the driving apparatus drives the inner drum to reverse in
advance and the impeller to continue rotating and further reverse
until the cycle ends, a set time of the advanced reversal is 1 to 2
S, that is, 1 to 2 S before each rotation cycle ends, the inner
drum first reversely rotates, and the impeller continues rotating
in an original rotation direction (at this time, the impeller and
the inner drum rotate in a same direction), after the inner drum
reversely rotates by 1 to 2 S, at this time, the rotation cycle
ends, and the impeller further reversely rotates (at this time, the
impeller and the inner drum rotate opposite to each other), and a
next cycle that they rotate opposite to each other is entered;
during a reversal stage of 1 to 2 S, the inner drum and the
impeller rotate in a same direction.
Embodiment 4
[0047] In the washing machine of this embodiment, when washing
starts, a driving apparatus drives the impeller/inner drum to first
rotate forward, clockwise, at this time, the inner drum/impeller is
stationary, after the impeller/inner drum rotates clockwise by a
set time t, the inner drum/impeller further rotates backward,
counterclockwise, at this time, the impeller/inner drum still
rotates forward, clockwise, and the impeller and inner drum rotate
opposite to each other; after the impeller/inner drum rotates
clockwise by a time T (t<T), the impeller/inner drum reverses to
rotate counterclockwise, after rotating counterclockwise by the
time T, the inner drum/impeller also reversely rotates, and after
reversely rotating by the time T, the impeller and inner drum
further reversely rotate; in this way, actions are performed
according to this rule until the washing ends; a period of time
after each time the impeller/inner drum reversely rotates and
before the inner drum/impeller reversely rotates is t, and within
this period of time, the impeller and inner drum rotate in a same
direction.
Embodiment 5
[0048] The driving apparatus of the washing machine of this
embodiment controls the impeller and the inner drum to rotate
opposite to each other by 2 to 4 S, stops, controls the impeller
and the inner drum to rotate in a same direction by 2 to 4 S,
stops, and then controls the impeller and the inner drum to rotate
opposite to each other by 2 to 4 S, and the foregoing process is
repeated.
Embodiment 6
[0049] In a washing process of the washing machine of this
embodiment, a cycle time that the impeller and the inner drum
rotate in a same direction is less than a cycle time that the
impeller and the inner drum rotate opposite to each other, which is
specifically that the driving apparatus controls the impeller and
the inner drum to rotate opposite to each other by 2 to 4 S, stops,
controls the impeller and the inner drum to rotate in a same
direction by 1 to 2 S, stops, and then controls the impeller and
the inner drum to rotate opposite to each other by 2 to 4 S, and
the foregoing process is repeated.
Embodiment 7
[0050] In the washing machine of this embodiment, when washing
starts, a driving apparatus drives the impeller to first rotate
forward, clockwise, at this time, the inner drum is stationary,
after the impeller rotates clockwise by 1 to 2 S, the inner drum
further rotates backward, counterclockwise, at this time, the
impeller still rotates forward, clockwise, and the impeller and
inner drum rotate opposite to each other; after the impeller
rotates clockwise by 3 to 5 S, the impeller reverses to rotate
counterclockwise, after rotating counterclockwise by 3 to 5 S, the
inner drum/impeller also reversely rotates, and after reversely
rotating by 3 to 5 S, the impeller and inner drum further reversely
rotate; a cycle of reverse rotation of the impeller is the same as
that of the inner drum; with a period of time after each time the
impeller reversely rotates and before the inner drum reversely
rotates, the impeller and inner drum rotate in a same
direction.
Embodiment 8
[0051] This embodiment is a washing process of the washing machine,
where the driving apparatus drives the inner drum and the impeller
to rotate opposite to each other, and after each rotation cycle,
the inner drum and the impeller reversely rotate, where: the
driving apparatus drives the inner drum and the impeller to reverse
asynchronously, so as to enable one of the impeller and the inner
drum to rotate and the other to stay stationary within a reversal
time difference. That is, a cyclic motion manner in which the
impeller and inner drum rotate opposite to each other, only the
impeller or inner drum rotates, and impeller and inner drum further
rotate opposite to each other is implemented.
Embodiment 9
[0052] On the basis of Embodiment 8, in this embodiment, when each
rotation cycle ends, the driving apparatus drives the inner drum to
first stop rotating, the impeller to reversely rotate, and the
inner drum to further reversely rotate after a set time, and the
set time is 1 to 4 S.
[0053] Alternatively, in another implementation manner, 3 to 4 S
before each rotation cycle of the inner drum ends, the driving
apparatus drives the inner drum to stop rotating, the impeller to
continue rotating, and the inner drum and the impeller to further
reversely rotate after 3 to 4 S.
Embodiment 10
[0054] This embodiment is a washing process of the washing machine,
after the driving apparatus drives the inner drum and impeller to
rotate in a same direction or opposite to each other by a set time
T1, the inner drum stops and the impeller continues rotating by a
set time t1, the impeller and inner drum are controlled to rotate
opposite to each other or in a same direction by a set time T2,
further the inner drum stops and the impeller continues rotating by
the set time t1, and the impeller and inner drum are further
controlled to rotate in a same direction or opposite to each other
by the set time T2, and the foregoing process is repeated; the set
time T1 may be equal to the set time T2 or may be different from
the set time T2, the set time t1 is less than or equal to the set
times T1 and T2, and the set times t1, T1, and T2 are greater than
0 and less than or equal to 5 S.
Embodiment 11
[0055] On the basis of Embodiment 10, in this embodiment, speeds of
the inner drum and the impeller in each cycle that the inner drum
and the impeller rotate in a same direction are less than speeds of
the inner drum and the impeller in each cycle that the inner drum
and the impeller rotate opposite to each other.
Embodiment 12
[0056] On the basis of the foregoing embodiments, in this
embodiment, the driving apparatus drives the inner drum and the
impeller to increase or reduce rotation speeds corresponding to a
set changing rule within each rotation cycle. A rotation speed
ratio between the inner drum and the impeller is 1:(1 to 5); and a
rotation speed of the impeller is 40 to 150 revolutions per
minute.
Embodiment 13
[0057] The washing machine according to the present invention sets
different driving manners of the foregoing embodiments according to
different washing programs. For example, in a bulky laundry
program, washing is merely performed in manner that the inner drum
and the impeller rotate opposite to each other. Moreover, in a mild
washing program, washing is performed in a cyclic rotation manner
that the inner drum and the impeller rotate opposite to each other,
rotate in a same direction, and then rotate opposite to each other.
In a sweater washing program, washing is performed in a cyclic
rotation manner that the inner drum and the impeller rotate
opposite to each other, the inner drum stays stationary and the
impeller rotates, and further the inner drum and the impeller
rotate opposite to each other.
[0058] While there has been shown several and alternate embodiments
of the present invention, it is to be understood that certain
changes can be made as would be known to one skilled in the art
without departing from the underlying scope of the present
invention as is discussed and set forth above and below including
claims. Furthermore, the embodiments described above and claims set
forth below are only intended to illustrate the principles of the
present invention and are not intended to limit the scope of the
present invention to the disclosed elements.
* * * * *