U.S. patent application number 15/563193 was filed with the patent office on 2018-03-29 for clothes dryer and control method therefor.
This patent application is currently assigned to QINGDAO HAIER WASHING MACHINE CO., LTD.. The applicant listed for this patent is QINGDAO HAIER WASHING MACHINE CO., LTD.. Invention is credited to Huacheng SONG, Sheng XU, Gaoxian ZHANG.
Application Number | 20180087212 15/563193 |
Document ID | / |
Family ID | 57006530 |
Filed Date | 2018-03-29 |
United States Patent
Application |
20180087212 |
Kind Code |
A1 |
XU; Sheng ; et al. |
March 29, 2018 |
Clothes Dryer and Control Method Therefor
Abstract
A clothes dryer includes a clothes drying drum, where a humidity
sensor for detecting a humidity value of clothes is arranged at a
clothes throwing port of the clothes drying drum; a detection
apparatus is further arranged in the clothes drying drum; and the
detection apparatus is arranged inside the clothes throwing port.
The detection apparatus is connected with a controller. The
detection apparatus is configured to detect an impedance value of a
surrounding environment of the detection apparatus at every
interval of a preset time period and transmit the impedance value
to the controller. The controller respectively compares each
impedance value with a preset impedance threshold, and judges the
amount of clothes in the clothes drying drum according to the
number of the impedance values exceeding the preset impedance
threshold, thereby adjusting a rotating speed of the clothes drying
drum according to the amount of clothes.
Inventors: |
XU; Sheng; (Qingdao, CN)
; SONG; Huacheng; (Qingdao, CN) ; ZHANG;
Gaoxian; (Qingdao, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
QINGDAO HAIER WASHING MACHINE CO., LTD. |
Qingdao, Shandong |
|
CN |
|
|
Assignee: |
QINGDAO HAIER WASHING MACHINE CO.,
LTD.
Qingdao, Shandong
CN
|
Family ID: |
57006530 |
Appl. No.: |
15/563193 |
Filed: |
March 30, 2016 |
PCT Filed: |
March 30, 2016 |
PCT NO: |
PCT/CN2016/077888 |
371 Date: |
September 29, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
D06F 2105/46 20200201;
D06F 2103/00 20200201; D06F 58/30 20200201; D06F 58/02 20130101;
D06F 58/04 20130101; D06F 2103/02 20200201; D06F 2103/44 20200201;
D06F 2103/34 20200201; D06F 58/38 20200201 |
International
Class: |
D06F 58/28 20060101
D06F058/28; D06F 58/02 20060101 D06F058/02 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 31, 2015 |
CN |
201510149863.X |
Claims
1. A clothes dryer, comprising a clothes drying drum, wherein a
humidity sensor for detecting a humidity value of clothes is
arranged at a clothes throwing port of the clothes drying drum; a
detection apparatus is further arranged in the clothes drying drum;
and the detection apparatus is arranged inside the clothes drying
drum; the detection apparatus is connected with a controller; and
the detection apparatus is configured to detect an impedance value
of a surrounding environment of the detection apparatus; and the
controller is configured to acquire the impedance value at every
interval of a preset time period within a predetermined duration,
and controls a rotating speed of the clothes drying drum according
to the impedance value.
2. The clothes dryer according to claim 1, wherein the detection
apparatus is arranged at an edge of the clothes throwing port of
the clothes drying drum.
3. The clothes dryer according to claim 1, wherein the detection
apparatus is arranged above a horizontal symmetry axis of a plane
on which the clothes throwing port is located.
4. The clothes dryer according to claim 2, wherein the detection
apparatus is arranged within a range of deflecting 60.degree. to
left or right from a vertical symmetry axis of the plane on which
the clothes throwing port is located.
5. The clothes dryer according to claim 1, wherein the detection
apparatus is a pair of metal electrodes.
6. A control method of a clothes dryer, comprising: detecting, by a
detection apparatus after a clothes drying drum is operated at an
initial rotating speed, an impedance value of a surrounding
environment of the detection apparatus; and acquiring, by a
controller, the impedance value at every interval of a preset time
period within a predetermined duration; and comparing, by the
controller, each impedance value with an impedance threshold
respectively, and judging the amount of clothes in the clothes
drying drum according to the number of the impedance values
exceeding the impedance threshold; and adjusting a rotating speed
of the clothes drying drum according to the amount of clothes in
the clothes drying drum.
7. The control method of the clothes dryer according to claim 6,
further comprising: classifying, by the controller, the amount of
clothes in the clothes drying drum into at least three levels;
wherein each level corresponds to a rotating speed.
8. The control method of the clothes dryer according to claim 7,
further comprising: classifying, by the controller, the amount of
clothes in the clothes drying drum into small capacity, medium
capacity and large capacity; adjusting the rotating speed of the
clothes drying drum to a low rotating speed when the controller
determines that the amount of clothes in the clothes drying drum is
the small capacity; adjusting the rotating speed of the clothes
drying drum to a medium rotating speed when the controller
determines that the amount of clothes in the clothes drying drum is
the medium capacity; and adjusting the rotating speed of the
clothes drying drum to a high rotating speed when the controller
determines that the amount of clothes in the clothes drying drum is
the large capacity.
9. The control method of the clothes dryer according to claim 8,
wherein the low rotating speed is 40-45 rpm; the medium rotating
speed is 50-55 rpm; and the high rotating speed is 60-65 rpm.
10. The control method of the clothes dryer according to claim 6,
wherein the initial rotating speed is 40 rpm.
11. The control method of the clothes dryer according to claim 6,
wherein the preset time period is 0.4 s to 0.6 s.
12. The clothes dryer according to claim 2, wherein the detection
apparatus is a pair of metal electrodes.
13. The clothes dryer according to claim 3, wherein the detection
apparatus is a pair of metal electrodes.
14. The clothes dryer according to claim 4, wherein the detection
apparatus is a pair of metal electrodes.
15. The control method of the clothes dryer according to claim 7,
wherein the preset time period is 0.4 s to 0.6 s.
16. The control method of the clothes dryer according to claim 8,
wherein the preset time period is 0.4 s to 0.6 s.
17. The control method of the clothes dryer according to claim 9,
wherein the preset time period is 0.4 s to 0.6 s.
18. The control method of the clothes dryer according to claim 10,
wherein the preset time period is 0.4 s to 0.6 s.
Description
TECHNICAL FIELD
[0001] The present application relates to the field of clothes
drying devices, for example, relates to a clothes dryer and a
control method therefor.
BACKGROUND
[0002] With the development and progress of science and technology,
people use clothes dryers more and more frequently. The clothes
dryers may refer to electrical appliances for evaporating and
drying moisture in washed clothes in time through electric heating.
The clothes dryers in relevant technologies easily have the
following problems in a use process: on one hand, clothes are
wrinkled, i.e., the clothes dried by the clothes dryer are easy to
be wrinkled; and on the other hand, drying is uneven, i.e., the
clothes dried by the clothes dryer are easy to be dried
unevenly.
[0003] Therefore, a market urgently needs a clothes dryer capable
of realizing good clothes drying uniformity and making the clothes
dried by the clothes dryer not easy to be wrinkled, and a control
method of the clothes dryer.
SUMMARY
[0004] Embodiments of the present disclosure provide a clothes
dryer capable of realizing good clothes drying uniformity and
making clothes dried by the clothes dryer not easy to be
wrinkled.
[0005] Embodiments of the present disclosure provide the clothes
dryer which can adjust a rotating speed of the clothes drying drum
according to the amount of clothes in the clothes drying drum so as
to solve problems that the clothes dryer dries unevenly and clothes
are wrinkled seriously in an existing art.
[0006] Embodiments of the present disclosure further provide a
control method of the clothes dryer. The control method is
configured to control the above clothes dryer. The control method
is used for controlling the clothes dryer so that a clothes drying
effect is better.
[0007] Embodiments of the present disclosure adopt the following
technical solution:
[0008] The clothes dryer includes a clothes drying drum, where a
humidity sensor for detecting a humidity value of clothes is
arranged at a clothes throwing port of the clothes drying drum; a
detection apparatus is further arranged in the clothes drying drum;
and the detection apparatus is arranged inside the clothes drying
drum;
[0009] the detection apparatus is connected with a controller; and
the detection apparatus is configured to detect an impedance value
of a surrounding environment of the detection apparatus; and
[0010] the controller is configured to acquire the impedance value
at every interval of a preset time period within a predetermined
duration and control a rotating speed of the clothes drying drum
according to the impedance value.
[0011] Optionally, the detection apparatus is arranged at an edge
of the clothes throwing port of the clothes drying drum.
[0012] Optionally, the detection apparatus is arranged above a
horizontal symmetry axis of a plane on which the clothes throwing
port is located.
[0013] Optionally, the detection apparatus is arranged within a
range of deflecting 60.degree. to left or right from a vertical
symmetry axis of the plane on which the clothes throwing port is
located.
[0014] Optionally, the detection apparatus is a pair of metal
electrodes.
[0015] In addition, embodiments of the present disclosure further
disclose a control method of the clothes dryer, including:
detecting, by a detection apparatus after a clothes drying drum is
operated at an initial rotating speed, an impedance value of a
surrounding environment of the detection apparatus; and acquiring,
by a controller, the impedance value at every interval of a preset
time period within a predetermined duration; and
[0016] comparing, by the controller, each impedance value with an
impedance threshold respectively, and judging the amount of clothes
in the clothes drying drum according to the number of the impedance
values exceeding the impedance threshold; and adjusting a rotating
speed of the clothes drying drum according to the amount of clothes
in the clothes drying drum.
[0017] Optionally, the controller classifies the amount of clothes
in the clothes drying drum into at least three levels; where each
level corresponds to a rotating speed.
[0018] Optionally, the controller classifies the amount of clothes
in the clothes drying drum into small capacity, medium capacity and
large capacity;
[0019] the rotating speed of the clothes drying drum is adjusted to
a low rotating speed when the controller determines that the amount
of clothes in the clothes drying drum is the small capacity;
[0020] the rotating speed of the clothes drying drum is adjusted to
a medium rotating speed when the controller determines that the
amount of clothes in the clothes drying drum is the medium
capacity; and
[0021] the rotating speed of the clothes drying drum is adjusted to
a high rotating speed when the controller determines that the
amount of clothes in the clothes drying drum is the large
capacity.
[0022] Optionally, the low rotating speed is 40-45 rpm; the medium
rotating speed is 50-55 rpm; and the high rotating speed is 60-65
rpm.
[0023] Optionally, the initial rotating speed is 40 rpm.
[0024] Optionally, the preset time period is 0.4 s to 0.6 s.
[0025] In the present application, the detection apparatus is
arranged at the clothes throwing port of the clothes drying drum of
the clothes dryer. The detection apparatus is connected with the
controller and is configured to detect the impedance value in the
surrounding environment. The controller acquires the impedance
value at every interval of the preset time period within a
predetermined duration, compares each impedance value with the
impedance threshold, and judges the amount of clothes in the
clothes drying drum according to the number of the impedance values
exceeding the impedance threshold. The controller adjusts the
rotating speed of the clothes drying drum according to the amount
of clothes in the clothes drying drum, thereby solving problems
that clothes are easy to be wrinkled and the clothes drying effect
is uneven because of keeping one rotating speed regardless of the
amount of clothes in the clothes dryer in the existing art.
[0026] By using the control method of the clothes dryer in the
present application, the controller of the clothes dryer can adjust
the rotating speed of the clothes drying drum according to the
amount of clothes in the clothes drying drum. In the case of more
clothes in the clothes drying drum, the rotating speed of the
clothes drying drum is increased. In the case of fewer clothes in
the clothes drying drum, the rotating speed of the clothes drying
drum is reduced in order to achieve uniform clothes drying effect
and difficulty to wrinkle clothes.
BRIEF DESCRIPTION OF DRAWINGS
[0027] FIG. 1 is a schematic structural diagram illustrating a
clothes dryer proposed by embodiment I of the present
disclosure;
[0028] FIG. 2 is a flow chart illustrating a control method of a
clothes dryer proposed by embodiment II of the present disclosure;
and
[0029] FIG. 3 is a schematic structural diagram illustrating
hardware of a device according to embodiments of the present
disclosure.
[0030] In the figures:
[0031] 1: Clothes drying drum; 2: Humidity sensor; 3: Detection
apparatus.
DETAILED DESCRIPTION
[0032] Technical solutions of embodiments of the present disclosure
will be further described below in combination with drawings and
through specific implementation modes.
Embodiment I
[0033] For a clothes dryer in a relevant technology, humidity of
clothes is detected by a humidity sensor arranged at a clothes
throwing port. In a clothes drying process, with continuous
rotation of a clothes drying drum, clothes are in frequent contact
with the humidity sensor. Since there is an inverse proportional
relationship between the humidity of the clothes and an impedance
value of the clothes, the humidity sensor obtains the humidity of
the clothes by detecting the impedance value of the clothes. When
the humidity of the clothes is high, the impedance value of the
clothes detected by the humidity sensor is small. When the humidity
of the clothes is low, the impedance value of the clothes detected
by the humidity sensor is large. In addition, the clothes dryer in
the relevant technology may have a problem of uneven clothes drying
since the clothes may be wound in the clothes drying drum, the
clothes located outside are dried rapidly, but the clothes wound
inside are dried slowly, and the relative humidity is high.
[0034] Moreover, for the clothes dryer in the relevant technology,
the amount of clothes in the clothes drying drum may also affect
the clothes drying effect. When the amount of to-be-dried clothes
placed in the drying drum is relatively large, the dried clothes
often have a wrinkle phenomenon. When the amount of the to-be-dried
clothes placed in the drying drum is relatively small, the clothes
are easily attached to an inner wall of the clothes drying drum, so
that the clothes are wrinkled. For example, for the clothes dryer
with a rated drying capacity of 8 kg, when more than 6 kg of
clothes are placed for drying, particularly when most of the placed
clothes are cotton fiber materials, wrinkle marks of the clothes
may be apparent and are not easy to be unfolded; and when less than
3 kg of clothes are placed for drying, the clothes are attached to
the inner wall of the clothes drying drum in a drying process, and
the clothes may also be wrinkled.
[0035] As shown in FIG. 1, the clothes dryer proposed by the
present embodiment includes a clothes drying drum 1. A humidity
sensor 2 for detecting a humidity value of clothes is arranged at a
clothes throwing port 11 of the clothes drying drum 1. The humidity
sensor 2 is configured to detect humidity of the clothes in the
clothes drying drum 1 and transmit the humidity value to a
controller, wherein optionally, the humidity sensor is composed of
a pair of metal electrodes.
[0036] A detection apparatus 3 is further arranged in the clothes
drying drum 1. The detection apparatus 3 is arranged inside the
clothes drying drum 1. Optionally, the detection apparatus 3 may be
arranged at an edge of the clothes throwing port of the clothes
drying drum 1. As shown in FIG. 1, the detection apparatus 3 is
arranged on an inner wall toward the clothes throwing port of the
clothes drying drum 1. The clothes can be brought into contact with
the detection apparatus 3 during rotation of the clothes drying
drum 1. As an optional embodiment, the detection apparatus 3 in the
present embodiment is a pair of metal electrodes, optionally a pair
of strip metal electrodes.
[0037] In addition, the detection apparatus 3 is electrically
connected with the controller. The detection apparatus 3 is
configured to continuously detect an impedance value of a
surrounding environment of the detection apparatus during the
rotation of the clothes drying drum 1. The controller acquires the
impedance value detected by the detection apparatus at every
interval of a preset time period within a predetermined duration,
wherein both the predetermined duration and the preset time period
can be adjusted appropriately according to a volume of the clothes
drying drum. Optionally, in the present embodiment, the
predetermined duration is 3 min, and the preset time period is 0.4
s to 0.6 s, optionally 0.4 s. Namely, the controller acquires the
impedance value in the surrounding environment detected by the
detection apparatus 3 every 0.4 s; and then, the controller
compares all the impedance values acquired within 3 min with an
impedance threshold so as to determine the amount of clothes in the
clothes drying drum according to comparison results. When the
detection apparatus 3 is in contact with the clothes, the impedance
value of the clothes is detected. When the detection apparatus 3 is
in contact with the air, the impedance value in the air is
detected.
[0038] As a feasible implementation mode, the detection apparatus 3
is arranged above a horizontal symmetry axis of a plane on which
the clothes throwing port 11 is located. Optionally, the detection
apparatus is arranged within a range of deflecting 60.degree. to
left or right from a vertical symmetry axis above the horizontal
symmetry axis of the plane on which the clothes throwing port 11 is
located. When the clothes drying drum 1 is rotated clockwise, the
detection apparatus 3 is arranged within the range of deflecting
60.degree. to the left from the vertical symmetry axis above the
horizontal symmetry axis of the plane on which the clothes throwing
port is located, i.e., arranged within a range of 10 o'clock to 12
o'clock directions, and optionally, arranged at a 10 o'clock
position. When the clothes drying drum 1 is rotated
counterclockwise, the detection apparatus 3 is arranged within a
range of deflecting 60.degree. to the right from the vertical
symmetry axis above the horizontal symmetry axis of the plane on
which the clothes throwing port is located, i.e., arranged within a
range of 2 o'clock to 12 o'clock directions, and optionally,
arranged at a 2 o'clock position.
[0039] The detection apparatus 3 is respectively arranged in the
range of 10 o'clock to 12 o'clock or in the range of 2 o'clock to
12 o'clock since clothes are subjected to a centrifugal force
during the rotation of the clothes drying drum 1, and the detection
apparatus arranged in the above two ranges is most likely to be in
contact with the clothes. The number of the clothes in the clothes
drying drum 1 and the number of contact times of the detection
apparatus 3 and the clothes are subjected to positive linear
distribution, the detection apparatus is more likely to be in
contact with the clothes, and the controller can determine the
amount of the clothes in the clothes drying drum relatively
accurately according to the impedance values detected by the
detection apparatus, thereby reasonably adjusting a rotating speed
of the clothes drying drum.
[0040] During implementation, the humidity sensor 2 and the
detection apparatus 3 may simultaneously use the same metal
electrodes (such as having same materials and/or shapes and the
like). During use, the metal electrodes of the humidity sensor 2
are arranged on a lower portion of an edge of the horizontal
symmetry axis of the plane on which the clothes throwing port of
the clothes drying drum 1 is located. During operation of the
clothes dryer, clothes may fall to the bottom of the clothes drying
drum 1 under action of gravity. The humidity sensor is arranged on
the lower portion of the edge of the horizontal symmetry axis of
the plane on which the clothes throwing port is located and can
better detect the humidity value of the clothes.
[0041] Certainly, it is possible that only one pair of metal
electrodes are arranged in the clothes dryer, and the pair of metal
electrodes can simultaneously detect the humidity value of the
clothes and the number of times for which the clothes are in
contact with and collide with the metal electrodes, i.e., tasks of
the humidity sensor and the detection apparatus are simultaneously
completed by one pair of metal electrodes. If only one pair of
metal electrodes are arranged in the clothes dryer, when the pair
of metal electrodes are arranged on the lower portion of the edge
of the horizontal symmetry axis of the plane on which the clothes
throwing port is located, the metal electrodes are relatively
accurate in detection of the humidity of the clothes (executing a
function of the humidity sensor), but are not accurate enough to
detect the amount of the clothes. If the pair of metal electrodes
are placed on an upper portion of the edge of the horizontal
symmetry axis of the plane on which the clothes throwing port is
located, the accuracy of the metal electrodes for detecting the
amount of the clothes (executing a function of the detection
apparatus) is improved, but the accuracy for detecting the humidity
of the clothes is reduced.
Embodiment II
[0042] The present embodiment proposes a control method of a
clothes dryer. After a clothes drying drum is operated at an
initial rotating speed, a detection apparatus detects an impedance
value in a surrounding environment of the detection apparatus. A
controller acquires the impedance value detected by the detection
apparatus at every interval of a preset time period within a
predetermined duration. The controller respectively compares each
impedance value detected in the predetermined duration with an
impedance threshold and judges the amount of clothes in the clothes
drying drum according to the number of the impedance values
exceeding the impedance threshold. The controller adjusts the
rotating speed of the clothes drying drum according to the amount
of the clothes in the clothes drying drum. As an optional
embodiment, the controller classifies the amount of the clothes in
the clothes drying drum into at least three levels, and each level
corresponds to a rotating speed.
[0043] As an optional embodiment, the controller in the present
embodiment classifies the amount of the clothes in the clothes
drying drum into three levels, namely, a small capacity level, a
medium capacity level and a large capacity level. The impedance
threshold in the present embodiment may be an empirical value
obtained by multiple tests, or may also be considered as a preset
value satisfying demands of a customer. During actual operation,
the impedance threshold is prestored in the controller. When the
controller determines that the amount of the clothes in the clothes
drying drum 1 is small capacity, the rotating speed of the clothes
drying drum 1 is adjusted to a low rotating speed. When the
controller determines that the amount of the clothes in the clothes
drying drum 1 is medium capacity, the rotating speed of the clothes
drying drum 1 is adjusted to a medium rotating speed. When the
controller determines that the amount of the clothes in the clothes
drying drum 1 is large capacity, the rotating speed of the clothes
drying drum 1 is adjusted to a high rotating speed. Optionally, the
low rotating speed is 40-45 rpm; the medium rotating speed is 50-55
rpm; the high rotating speed is 60-65 rpm; and the initial rotating
speed of the clothes drying drum is 40 rpm.
[0044] A detection principle of using the metal electrodes as the
detection apparatus in the present embodiment is as follows: both
the clothes and the air can be contacted with the metal electrodes
of the detection apparatus during rotation of the clothes drying
drum; and optionally, the detection apparatus is composed of two
strip metal electrodes. The detection apparatus can respectively
detect the impedance value between the electrodes and the clothes
or the air by forming a detection circuit with the two strip metal
electrodes.
[0045] The controller acquires the impedance value of the detection
apparatus at every interval of a preset time period in a
predetermined duration. Optionally, the preset time period is 0.4
s, and the predetermined duration is 3 min. The controller can
actively acquire the impedance value, i.e., the controller
transmits an impedance value acquisition instruction to the
detection apparatus every 0.4 s, and the detection apparatus
transmits the acquired impedance value to the controller after
receiving the instruction.
[0046] For the clothes having the same material and humidity, when
the amount of the clothes in the clothes drying drum is large, a
contact area between the clothes and an inner wall of the clothes
drying drum is relatively large and the clothes are in contact with
the strip metal electrodes as the detection apparatus at a
relatively high frequency, i.e., the strip metal electrodes are in
frequent contact with the clothes and in less frequent contact with
the air. Thus, the frequency of generation of the impedance value
by contact between the metal electrodes and the clothes measured by
the detection apparatus in the predetermined duration is relatively
high, and the controller determines that the number of the
impedance values exceeding the impedance threshold in the plurality
of impedance values in the predetermined duration is relatively
large. When the amount of the clothes is small, the contact area
between the clothes and the inner wall of the clothes drying drum
is relatively small and the clothes are in contact with the strip
metal electrodes as the detection apparatus at a relatively low
frequency, i.e., the strip metal electrodes are in less frequent
contact with the clothes and are in less frequent contact with the
air. Thus, the frequency of generation of the impedance value by
contact between the metal electrodes and the clothes measured by
the detection apparatus in the predetermined duration is relatively
low, and the controller determines that the number of the impedance
values exceeding the impedance threshold in the plurality of
impedance values in the predetermined duration is relatively small.
Similarly, when the amount of the clothes is moderate, the
frequency of generation of the impedance value by contact between
the metal electrodes and the clothes measured by the detection
apparatus in the predetermined duration is also moderate, and the
controller determines that the number of the impedance values
exceeding the impedance threshold in the plurality of impedance
values in the predetermined duration is moderate.
[0047] The large, small or moderate amount of the clothes mentioned
above may be the amount of the clothes relative to the volume of
the clothes drying drum. For example, if clothes capacity of the
clothes drying drum is 8 kg, the amount of the clothes in the
clothes drying drum is large when the amount of the clothes exceeds
6 kg, the amount of the clothes in the clothes drying drum is small
when the amount of the clothes in the clothes drying drum is less
than 3 kg; and the amount of the clothes in the clothes drying drum
is moderate when the amount of the clothes in the clothes drying
drum is about 4 kg.
[0048] In addition, the large, small or moderate number of
impedance values exceeding the impedance threshold measured by the
detection apparatus mentioned above may be the amount of the
impedance values relative to a preset number. For example, if the
preset number is 300, and the detection apparatus detects 450
impedance values (detecting once every 0.4 s) in the predetermined
duration (3 min), the amount of the clothes of the clothes drying
drum is determined to be large capacity when the controller
determines that the number of the impedance values exceeding the
impedance threshold in the 450 impedance values in the
predetermined duration is 380 (greater than the preset number 300);
the amount of the clothes of the clothes drying drum is determined
to be small capacity when the controller determines that the number
of the impedance values exceeding the impedance threshold in the
450 impedance values is 280 (less than the preset number 300); and
the amount of the clothes of the clothes drying drum is determined
to be medium capacity when the controller determines that the
number of the impedance values exceeding the impedance threshold in
the 450 impedance values is 300 (equal to the preset number
300).
[0049] The control method of the clothes dryer is described in
detail below by optional operation processes: after the clothes
dryer is turned on, the clothes drying drum is rotated at an
initial rotating speed of 40 rpm. When the clothes in the clothes
drying drum are in contact with the metal electrodes at a
corresponding frequency, the detection apparatus continuously
detects the impedance value in the surrounding environment in real
time, and the controller acquires the impedance value detected by
the detection apparatus every 0.4 s (the preset time period).
Within 3 min (the predetermined duration) after the clothes dryer
is turned on to operate (both the preset time period and the
predetermined duration can be adjusted according to actual load
conditions), the controller keeps acquiring the impedance value
once every 0.4 s; the controller compares the impedance value
acquired every time with the impedance threshold and judges the
amount of the clothes in the clothes drying drum according to the
number of the impedance values exceeding the impedance threshold
within 3 min; and the controller adjusts the rotating speed of the
clothes drying drum according to the amount of the clothes in the
clothes drying drum. For example, the number of the impedance
values measured by the detection apparatus within 3 min is 450
(including the frequency of contact between the detection apparatus
and the clothes and the frequency of contact between the detection
apparatus and the air), a corresponding relationship between the
number of the impedance values exceeding the impedance threshold
and clothes capacity of the clothes drying drum is as follows: when
the number of the impedance values exceeding the impedance
threshold is 380, the controller defines that clothes capacity of
the clothes drying drum is large capacity, and the controller
adjusts the rotating speed of the clothes drying drum to 60-65 rpm;
when the number of the impedance values exceeding the impedance
threshold is 280, the controller defines that clothes capacity of
the clothes drying drum is medium capacity, and the controller
adjusts the rotating speed of the clothes drying drum to 40-45 rpm;
when the number of the impedance values exceeding the impedance
threshold is 180, the controller defines that clothes capacity of
the clothes drying drum is small capacity; and when the number of
the impedance values exceeding the impedance threshold is 300, the
controller defines that clothes capacity of the clothes drying drum
is medium capacity, and the controller adjusts the rotating speed
of the clothes drying drum to 50-55 rpm.
[0050] In the control method in the present embodiment, when the
volume of the clothes drying drum is determined as small capacity,
the clothes drying drum is selected to be operated at the low
rotating speed in order to avoid that the clothes are in contact
with drying wind unevenly when the rotating speed of the clothes
drying drum is too high and the clothes are attached to a drum wall
of the clothes drying drum, and also avoid that wrinkles cannot be
unfolded when the rotating speed of the clothes drying drum is too
high and the clothes are extruded in a circumferential direction.
When the amount of the clothes in the clothes drying drum is large
capacity, the clothes drying drum is selected to be operated at the
high rotating speed in order to prevent the wrinkles from being
generated in a large area and also improve the drying uniformity by
increasing an angular speed to increase a centrifugal force and
unfolding the clothes in the clothes drying drum under action of
large centrifugal force. When the amount of the clothes in the
clothes drying drum is medium capacity, the clothes drying drum is
selected to be operated at the medium rotating speed in order to
avoid that the clothes are attached to the drum wall due to high
rotating speed by rotating the clothes drying drum at an
appropriate angular speed and unfolding the clothes in the drum
under action of appropriate centrifugal force, and also avoid that
the clothes cannot be unfolded due to lack of full centrifugal
force when the rotating speed of the clothes drying drum is too
low, and the clothes are rotated in the drum in an agglomeration
manner to generate excessive wrinkles.
[0051] By using the control method in the present embodiment, the
controller can adjust the rotating speed of the clothes drying drum
according to the amount of the clothes in the clothes drying drum.
In the case of more clothes in the clothes drying drum, the
rotating speed in the clothes drying drum is increased; and in the
case of fewer clothes in the clothes drying drum, the rotating
speed of the clothes drying drum is relatively low, so as to
achieve a good clothes drying effect and achieve that the clothes
dried by the clothes dryer are not easy to be wrinkled.
Embodiment III
[0052] Embodiments of the present disclosure also provide a storage
medium. Optionally, in the present embodiment, the above storage
medium may be configured to store program codes for performing the
following steps:
[0053] after a clothes drying drum (1) is operated at an initial
rotating speed, a detection apparatus (3) detects an impedance of
the surrounding environment of the detection apparatus; and the
controller acquires the impedance value at every interval of a
preset time period in a predetermined duration;
[0054] the controller respectively compares each impedance value
with an impedance threshold and judges the amount of clothes in the
clothes drying drum (1) according to the number of the impedance
values exceeding the impedance threshold; and
[0055] the controller adjusts the rotating speed of the clothes
drying drum (1) according to the amount of the clothes in the
clothes drying drum (1).
[0056] Optionally, in the present embodiment, the above storage
medium may include but not limited to: a USB flash disk, a
read-only memory (ROM), a random access memory (RAM), a mobile hard
disk, a magnetic disc or a compact disc and other non-volatile
storage media that can store program codes.
[0057] Optionally, examples in the present embodiment can be
referred to the examples described in the above embodiments and
preferred embodiments. The present embodiment is not repeated
here.
[0058] Apparently, those skilled in the art should understand that
the modules or the steps above can be implemented using universal
calculation apparatuses, and can be centralized on a single
calculation apparatus or distributed on a network formed by a
plurality of calculation apparatuses. Optionally, the modules or
the steps can be implemented using program codes capable of being
executed by the calculation apparatuses. Therefore, the modules or
the steps can be stored in the storage apparatuses and then
executed by the calculation apparatuses. Moreover, in some cases,
the steps shown or described can be executed in a different
sequence from the sequence herein, or respectively manufactured
into integrated circuit modules, or a plurality of modules or steps
are manufactured into single integrated circuit modules to be
implemented. The above only describes embodiments of the present
disclosure and is not intended to limit the present disclosure.
Embodiment IV
[0059] FIG. 3 is a schematic structural diagram illustrating
hardware of a device according to embodiments of the present
disclosure. As shown in FIG. 3, the device includes:
[0060] one or more processors 410, and in FIG. 3, one processor 410
is taken as an example; and
[0061] a memory 420.
[0062] The device can further include: an input apparatus 430 and
an output apparatus 440.
[0063] The processor 410, the memory 420, the input apparatus 430
and the output apparatus 440 in the device can be connected by a
bus or in other modes, and connection by the bus is taken as an
example in FIG. 3.
[0064] The memory 420 as a computer readable storage medium can be
used for storing software programs, computer executable programs
and modules. The processor 410 executes various kinds of function
applications and data processing of the server by operating the
software programs, the instructions and the modules stored in the
memory 420, thereby realizing the control method of the clothes
dryer in the above method embodiments.
[0065] The memory 420 may include a program storage area and a data
storage area, wherein the program storage area may store an
operating system and applications required for at least one
function; and the data storage area may store data, etc. created
according to use of a terminal device. In addition, the memory 420
may include a high-speed random access memory, and may further
include a non-transitory memory, for example, at least one disk
memory device, a flash memory device or other non-transitory
solid-state memory devices. In some embodiments, the memory 420 may
selectively include memories remotely arranged relative to the
processor 410, wherein the remote memories may be connected to the
terminal device by a network. An example of the above network
includes but not limited to Internet, Intranet, local area network,
mobile communication network and a combination therefor.
[0066] The input apparatus 430 may be configured to receive input
digital or character information and generate a key signal input
relevant to user settings and functional control of the terminal.
The output apparatus 440 may include a display device such as a
display screen and the like.
[0067] The one or more modules are stored in the memory 420. When
the modules are executed by the one or more processors 410, the
following operations are performed:
[0068] after the clothes drying drum (1) is operated at an initial
rotating speed, the detection apparatus (3) detects an impedance of
the surrounding environment of the detection apparatus; and the
controller acquires the impedance value at every interval of a
preset time period in a predetermined duration;
[0069] the controller respectively compares each impedance value
with an impedance threshold and judges the amount of clothes in the
clothes drying drum (1) according to the number of the impedance
values exceeding the impedance threshold; and
[0070] the controller adjusts the rotating speed of the clothes
drying drum (1) according to the amount of the clothes in the
clothes drying drum (1).
* * * * *