CN112176679B - Clothes treatment device and control method thereof - Google Patents
Clothes treatment device and control method thereof Download PDFInfo
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- CN112176679B CN112176679B CN201910508533.3A CN201910508533A CN112176679B CN 112176679 B CN112176679 B CN 112176679B CN 201910508533 A CN201910508533 A CN 201910508533A CN 112176679 B CN112176679 B CN 112176679B
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Abstract
The invention provides a clothes treatment device and a control method thereof, wherein the clothes treatment device is a clothes dryer which comprises a motor and a heat pump system, and the heat pump system comprises a compressor; the control method comprises at least two motor forward rotation processes and at least two motor reverse rotation processes, wherein the motor forward rotation processes and the motor reverse rotation processes are alternately carried out; in the process of the reverse rotation of the motor, the compressor is stopped or reduced in frequency, and in the process of the forward rotation of the motor, the compressor is started or increased in frequency to the conventional frequency; the clothes processing device and the control method thereof ensure the reverse rotation time of the clothes dryer, ensure that clothes are fully turned and shaken up in the clothes drying process, are favorable for completely drying the clothes, and improve the drying efficiency; meanwhile, the system cannot be stopped due to the action of the compressor protector caused by overload, the service life of the compressor is prolonged, the power consumption of the clothes dryer is reduced, and the effects of energy conservation and emission reduction are achieved.
Description
Technical Field
The invention relates to the technical field of clothes treatment, in particular to a clothes treatment device and a control method thereof, and particularly relates to a clothes dryer and a drying control method thereof.
Background
The clothes dryer is indispensable electrical equipment in daily life of people and has various structural forms. With the continuous improvement of the industrial design level and the application of new processes, new materials and new shapes on the clothes dryer, various clothes dryers are developed, the structure of the clothes dryer is continuously optimized, and the drying algorithm of the clothes dryer is also continuously optimized.
In prior art, the dryer often is that the motor drives cylinder and impeller and rotates together, the overwhelming majority of times is the folk prescription rotation when drying the clothing, there is the reversal occasionally, jump to break and shut down because of protection and the compressor protector to the system in the procedure logic in order to ensure the dryer, so even the dryer reverses among the prior art, the time of its reversal is also not long, it is inhomogeneous to make the clothing upset, can't tremble the clothing effectively, thereby make when drying bed sheet, quilt cover, big fabrics such as (window) curtain have very big probability can produce the winding phenomenon, lead to the outside stoving of fabric, inside moist condition, influence user's use experience.
Patent application with application number CN201610797436.7 discloses a heat pump type clothes dryer and a drying control method thereof, wherein the heat pump type clothes dryer comprises a circulating air duct system, a heat pump circulating system and a drum motor, and the drying control method comprises the following steps: after the heat pump type clothes dryer is started, controlling a rotary drum motor and a compressor in a heat pump circulating system to start successively; detecting the humidity of the clothes to be dried in real time, and judging the humidity of the clothes to be dried; when the humidity of the clothes to be dried reaches a first preset target humidity, controlling the drum motor to perform forward and reverse rotation operation at a preset beat, and keeping the compressor to continue to operate until the humidity of the clothes to be dried reaches a second preset target humidity, and controlling the heat pump type clothes dryer to stop by controlling the drum motor and the compressor to stop operating; however, in the application, before the humidity of the clothes to be dried reaches the first preset target humidity, the drum motor always rotates forward, and the forward and reverse rotation operation is started at the preset beat until the humidity of the clothes to be dried reaches the first preset target humidity, so that the clothes dryer can perform forward transmission most of the time in the whole clothes drying process, and the reverse rotation time is short, so that the clothes are not uniformly overturned, the clothes cannot be effectively shaken, and partial clothes cannot be thoroughly dried, and the drying efficiency is influenced; in addition, in the drying process of the application, the compressor is always kept in the running state, so that the power consumption of the clothes dryer is increased, and the energy conservation and emission reduction are not facilitated.
Disclosure of Invention
In view of the above, the present invention is directed to a laundry processing apparatus and a control method thereof, so as to solve the problems of the prior art that the reverse rotation time of the dryer is short, the laundry is not uniformly turned, the laundry cannot be effectively shaken, some laundry cannot be thoroughly dried, and the drying efficiency is low.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control method of a clothes treatment device is a clothes dryer, the clothes dryer comprises a motor and a heat pump system, and the heat pump system comprises a compressor; the control method comprises at least two motor forward rotation processes and at least two motor reverse rotation processes, wherein the motor forward rotation processes and the motor reverse rotation processes are alternately carried out; during the reverse rotation of the motor, the compressor is stopped or reduced in frequency, and during the forward rotation of the motor, the compressor is started or increased in frequency to the conventional frequency.
Furthermore, in the complete clothes drying process, the number of times of forward rotation of the motor is the same as the number of times of reverse rotation of the motor, or the number of times of forward rotation of the motor is more than the number of times of reverse rotation of the motor by one time.
Further, the control method comprises the following steps:
s1, starting the clothes dryer, controlling the motor to run, and controlling the compressor to start after T1 time;
s2, after the compressor runs for T2 time, the clothes dryer controls the compressor to stop or reduce the frequency, and the clothes dryer controls the motor to stop;
s3, controlling a motor to rotate reversely by the clothes dryer, wherein the reverse rotation time is T4;
s4, the dryer controls the motor to stop, then controls the motor to rotate forward, and controls the compressor to start or increase the frequency;
s5, after the compressor is started or the compressor is in frequency-up operation for T6 time, the clothes dryer controls the compressor to stop or reduce the frequency, and the clothes dryer controls the motor to stop;
s6, controlling a motor to rotate reversely by the clothes dryer, wherein the reverse rotation time is T8;
s7, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step S8; otherwise, returning to step S4;
and S8, stopping the dryer control motor and the compressor, and finishing drying.
Further, the clothes treatment device is a fixed-frequency clothes dryer or a variable-frequency clothes dryer.
Further, the clothes treatment device is a variable frequency clothes dryer; the control method comprises the following steps:
b1, starting the clothes dryer, controlling the motor to run, and controlling the compressor to start by the clothes dryer after T1 time;
b2, after the compressor runs for T2 time, the clothes dryer controls the compressor to stop or reduce the frequency, and the clothes dryer controls the motor to stop;
b3, controlling a motor to rotate reversely by the clothes dryer, wherein the reverse rotation time is T4;
b4, the dryer controls the motor to stop, then controls the motor to rotate forward, and controls the compressor to start or increase the frequency;
b5, after the compressor is started or the compressor is in frequency-up operation for T6 time, the dryer controls the compressor to stop or reduce the frequency, and the dryer controls the motor to stop;
b6, controlling a motor to rotate reversely by the clothes dryer, wherein the reverse rotation time is T8;
b7, the dryer controls the motor to stop, then controls the motor to rotate forward, and controls the compressor to start or increase the frequency;
b8, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step B9; if not, returning to the step B5;
b9, stopping the dryer control motor and the compressor, and finishing drying.
Further, step B2 includes any one of step B21, step B22, step B23;
wherein, the step B21: after the compressor runs for T2 time, the clothes dryer controls the compressor to stop, and the clothes dryer controls the motor to stop after T3 time delay;
step B22: after the compressor runs for T2 time, the clothes dryer simultaneously controls the compressor and the motor to stop;
step B23: after the compressor runs for T2 time, the dryer controls the compressor to reduce the frequency to F1, and the dryer controls the motor to stop after delaying T3 time;
step B4 includes any one of step B41, step B42;
wherein, the step B41: the clothes dryer controls the motor to stop, then controls the motor to rotate forwards, and controls the compressor to start after the time T5 is delayed;
step B42: the clothes dryer controls the motor to stop, then controls the motor to rotate forwards, and controls the compressor to increase the frequency to a conventional frequency F0;
step B5 includes any one of step B51, step B52, step B53;
wherein, the step B51: after the compressor runs for T6 time, the clothes dryer controls the compressor to stop, and the clothes dryer controls the motor to stop after T7 time delay;
step B52: after the compressor runs for T6 time, the clothes dryer simultaneously controls the compressor and the motor to stop;
step B53: after the compressor runs for T6 time, the dryer controls the compressor to reduce the frequency to F1, and the dryer controls the motor to stop after delaying T7 time;
step B7 includes any one of step B71, step B72;
wherein, the step B71: the clothes dryer controls the motor to stop, then controls the motor to rotate forwards, and controls the compressor to start after the time T9 is delayed;
step B72: the dryer controls the motor to stop, then controls the motor to rotate forwards, and controls the compressor to increase the frequency to the conventional frequency F0.
Further, in the process of stopping the compressor from the step B2 to the step B4, the stop time of the compressor is T3+ T4+ T5, and the stop time of the compressor is more than or equal to the internal pressure balance time of the heat pump system;
during the shutdown of the compressor in the steps B5 to B7, the shutdown time of the compressor is T7+ T8+ T9, and the shutdown time of the compressor is more than or equal to the internal pressure balance time of the heat pump system;
in the control method, T2 ≠ T6 or T2 ≠ T6, T3 ≠ T7 or T3 ≠ T7, T4 ≠ T8 or T4 ≠ T8, T5 ≠ T9 or T5 ≠ T9.
Further, the control method comprises the following steps:
d1, starting the clothes dryer, controlling the motor to run, and controlling the compressor to start after T1 time;
d2, after the compressor runs for T2 time, the dryer controls the compressor to stop, and the dryer controls the motor to stop;
d3, controlling a motor to rotate reversely by the clothes dryer, wherein the reverse rotation time is T4;
d4, controlling the motor to stop by the clothes dryer, then controlling the motor to rotate forwards, and controlling the compressor to start by the clothes dryer;
d5, after the compressor is started for T6 time, the dryer controls the compressor to stop, and the dryer controls the motor to stop;
d6, controlling a motor to rotate reversely by the clothes dryer, wherein the reverse rotation time is T8;
d7, controlling the motor to stop by the clothes dryer, then controlling the motor to rotate forwards, and controlling the compressor to start by the clothes dryer;
d8, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step D9; if not, returning to the step D5;
d9, stopping the dryer control motor and the compressor, and finishing drying.
Further, step D2 includes any one of step D21, step D22;
wherein, the step D21: after the compressor runs for T2 time, the clothes dryer controls the compressor to stop, and the clothes dryer controls the motor to stop after T3 time delay;
step D22: after the compressor runs for T2 time, the clothes dryer simultaneously controls the compressor and the motor to stop;
step D4, the dryer controls the motor to stop, then controls the motor to rotate forward, and controls the compressor to start after the time T5 is delayed;
step D5 includes any one of step D51, step D52;
wherein, the step D51: after the compressor runs for T6 time, the clothes dryer controls the compressor to stop, and the clothes dryer controls the motor to stop after T7 time delay;
step D52: after the compressor runs for T6 time, the clothes dryer simultaneously controls the compressor and the motor to stop;
and step D7, the dryer controls the motor to stop, then controls the motor to rotate forwards, and controls the compressor to start after the time T9 is delayed.
A laundry treating apparatus includes a dryer, and the laundry treating apparatus employs a control method of the laundry treating apparatus.
Compared with the prior art, the clothes treatment device and the control method thereof have the following advantages:
according to the clothes processing device and the control method thereof, the number of times of forward rotation of the motor and the number of times of reverse rotation of the motor are uniformly set, and the forward rotation process and the reverse rotation process of the motor are alternately carried out, so that the clothes dryer is always in a state of alternately carrying out forward rotation and reverse rotation in the beginning stage of clothes drying and the finishing stage of clothes drying, the balance between the number of times of forward rotation and the number of times of reverse rotation of the clothes dryer and the balance between the forward rotation time and the reverse rotation time of the clothes dryer are ensured, the reverse rotation duration of the clothes dryer is ensured, clothes are fully overturned and scattered in the clothes drying process, the clothes are favorably and thoroughly dried, and the drying efficiency is improved; meanwhile, in the prior art, the flow of the circulating air in the clothes dryer is reduced due to the fact that the clothes dryer reversely rotates, the compressor is adjusted to be in a stop state or a frequency reduction state in the clothes dryer reversely rotating process, the working state of the compressor is matched with the circulating air flow, the condition that the compressor is in a normal operation state when the air flow is reduced is avoided, namely, the condition that the compressor normally operates under low load is avoided, the system cannot stop due to the action of the compressor protector due to overload, the clothes dryer can still normally operate in the reversely rotating process, the service life of the compressor is prolonged, the power consumption of the clothes dryer is reduced, and the effects of saving energy and reducing emission are achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a control method of a laundry treating apparatus according to an embodiment of the present invention;
fig. 2 is another flowchart of a control method of a laundry treating apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a laundry treating apparatus according to an embodiment of the present invention.
Description of reference numerals:
the air conditioner comprises a roller 1, a front air duct 2, a rear air duct 3, an impeller 4, a compressor 5, a condenser 6, a throttling device 7, an evaporator 8, a refrigerant pipeline 9, a motor 10, a belt 11 and a transmission device 12.
Detailed Description
The inventive concepts of the present disclosure will be described hereinafter using terms commonly employed by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "provided", "mounted", "connected" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the term "fixed" may be a bolted and/or screwed connection and/or a snap and/or a weld, which term is understood by a person skilled in the art as a matter of fact to have a special meaning in the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. In fig. 3 of the present invention, black solid arrows indicate the flow direction of the refrigerant medium, and line arrows indicate the flow direction of the circulating air.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
The present embodiment proposes a laundry treating apparatus and a control method thereof, as shown in fig. 1-3, the laundry treating apparatus is a clothes dryer, the clothes dryer includes a motor 10, a heat pump system, the heat pump system includes a compressor 5; specifically, the clothes dryer comprises a motor 10, a roller 1, a front air duct 2, a heat pump system and a rear air duct 3 which are sequentially connected end to end, wherein an impeller 4 is arranged on the rear air duct 3, the impeller 4 is connected with the motor 10, and the impeller 4 provides flowing power for circulating air under the driving of the motor 10, so that the circulating air in the roller 1 can sequentially flow into the front air duct 2, the heat pump system and the rear air duct 3 and then reenters the roller 1 to perform a clothes drying process; the drum 1 is connected with a motor 10, and the drum 1 is driven by the motor 10 to rotate forward and backward according to the forward rotation or backward rotation process of the motor 10, so that the forward and backward rotation of the drum 1 is realized, namely the forward and backward rotation process of the clothes dryer.
A transmission device 12 is arranged between the impeller 4 and the motor 10, namely, the motor 10 drives the impeller 4 to rotate through the transmission device 12; a transmission structure is also arranged between the roller 1 and the motor 10, namely the motor 10 drives the roller 1 to rotate through the transmission structure; the transmission device 12 can be any structure of a motor shaft, a shaft sleeve, a belt and the like, and the transmission structure can also be any structure of a motor shaft, a shaft sleeve, a belt and the like; preferably, the motor 10 directly drives the impeller 4 to rotate through a motor shaft, a belt 11 is arranged between the roller 1 and the motor 10, and the motor 10 drives the roller 1 to rotate through the belt 11.
The heat pump system comprises a compressor 5, a condenser 6, a throttling device 7 and an evaporator 8 which are sequentially connected end to end, the heat pump system exchanges heat with circulating air in the clothes dryer through a refrigerant medium, all components of the heat pump system are connected through a refrigerant pipeline 9, a passage is provided for the flow of the refrigerant medium in the heat pump system, and namely the refrigerant pipeline 9 is a flow passage of the refrigerant. As an implementation manner of this embodiment, the refrigerant medium is freon or natural working medium.
In the clothes drying process, for the clothes treating device, the control method of the clothes treating device comprises at least two forward rotation processes of the motor 10 and at least two reverse rotation processes of the motor 10, and the forward rotation processes of the motor 10 and the reverse rotation processes of the motor 10 are alternately carried out; during the reverse rotation of the motor 10, the compressor 5 is stopped or down-converted, and during the forward rotation of the motor 10, the compressor 5 is started or up-converted to a normal frequency.
In the complete clothes drying process, the number of times of forward rotation of the motor 10 is the same as the number of times of reverse rotation of the motor 10, or the number of times of forward rotation of the motor 10 is more than the number of times of reverse rotation of the motor 10 by one.
Therefore, the invention ensures the balance between the forward rotation times and the reverse rotation times of the clothes dryer and the balance between the forward rotation time and the reverse rotation time of the clothes dryer by uniformly setting the forward rotation times of the motor 10 and the reverse rotation times of the motor 10 and alternately performing the forward rotation process and the reverse rotation process of the motor 10 in the beginning stage of drying clothes and the finishing stage of drying clothes, ensures the reverse rotation time of the clothes dryer, ensures that clothes are fully turned over and scattered in the process of drying clothes, is favorable for completely drying the clothes and improves the drying efficiency; meanwhile, in the prior art, because the flow of the circulating air inside the clothes dryer is reduced due to the reverse rotation of the clothes dryer, the compressor 5 is adjusted to be in a stop state or a frequency reduction state in the reverse rotation process of the clothes dryer, so that the working state of the compressor 5 is matched with the circulating air flow, the condition that the compressor 5 is still in a normal running state when the air flow is reduced is avoided, namely, the overload condition caused by the normal running of the compressor 5 under low load is avoided, the system cannot stop due to the action of a compressor protector due to overload, the clothes dryer can still keep normal running in the reverse rotation process, the service life of the compressor 5 is prolonged, the power consumption of the clothes dryer is reduced, and the effects of energy conservation and emission reduction are achieved.
Example 2
In the present embodiment, on the condition that the number of times the motor 10 is rotated forward is the same as the number of times the motor 10 is rotated backward in addition to embodiment 1, a method for controlling a laundry treatment apparatus is provided, including:
s1, starting the clothes dryer, controlling the motor 10 to run, and controlling the compressor 5 to start after T1 time;
the clothes dryer controls the motor 10 to operate, at the moment, the motor 10 drives the impeller 4 and the roller 1 to rotate, and the rotation direction of the roller 1 can be regarded as positive rotation; similarly, the impeller 4 rotates, the circulating air in the air duct of the clothes dryer starts to flow, the flow rate of the circulating air is gradually increased, and after the T1 time, the compressor 5 is started after the circulating air reaches a certain flow rate, so that the early start of the compressor 5 is avoided, the power consumption of the clothes dryer is reduced, and the effects of energy conservation and emission reduction are achieved.
Preferably, T1 ≧ 1min, compressor 5 is operated at conventional frequency F0.
S2, after the compressor 5 runs for T2 time, the clothes dryer controls the compressor 5 to stop or reduce the frequency, and the clothes dryer controls the motor 10 to stop;
for step S2, step S2 includes any one of step S21, step S22, step S23;
wherein, step S21: after the compressor 5 runs for T2 time, the clothes dryer controls the compressor 5 to stop, and controls the motor 10 to stop after the clothes dryer delays for T3 time;
step S22: after the compressor 5 runs for T2 time, the dryer simultaneously controls the compressor 5 and the motor 10 to stop;
step S23: after the compressor 5 runs for T2 time, the clothes dryer controls the compressor 5 to be down-converted to the frequency F1, and the clothes dryer controls the motor 10 to stop after delaying T3 time;
after the compressor 5 runs for T2 time, the compressor 5 stops or reduces the frequency, the motor 10 stops, and accordingly, the drum 1 stops rotating forward, which marks the end of the first forward rotation process of the dryer, and then the dryer starts the first reverse rotation process, i.e., step S3 is performed.
In addition, in the process of reversing the clothes dryer, the flow rate of the circulating air inside the clothes dryer is reduced, so that before the clothes dryer starts reversing, namely in step S2, the compressor 5 is adjusted to be in a stop state or a frequency reduction state, and then step S3 is performed, so that the working state of the compressor 5 is matched with the change of the circulating air flow, the condition that the compressor 5 is still in a normal running state when the air flow is reduced is avoided, and therefore the compressor 5 does not need to perform unnecessary power output, the service life of the compressor 5 is prolonged, the power consumption of the clothes dryer is reduced, and the effects of energy conservation and emission reduction are achieved.
S3, controlling the motor 10 to rotate reversely by the clothes dryer, wherein the reverse rotation time is T4;
wherein, under the drive of motor 10 reversal, cylinder 1 also reverses to carry out the first reversal process that reversal time is T4, make the load antiport in cylinder 1, can fully overturn and tremble and loose, avoid the clothing winding.
S4, the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forward, and controls the compressor 5 to start or increase frequency;
after the clothes dryer reversely rotates in step S3, the motor 10 is stopped, and accordingly, the drum 1 stops reversely rotating, which marks the end of the first reversely rotating process of the clothes dryer, and then the clothes dryer starts the second forwardly rotating process, i.e. the motor 10 rotates forwardly and drives the drum 1 to rotate forwardly, and at the same time, the impeller 4 rotates normally, so that the flow of the circulating air in the clothes dryer returns to normal, and the compressor 5 starts or increases the frequency, so that the clothes dryer performs the normal clothes drying process.
For step S4, step S4 includes any one of step S41, step S42;
wherein, step S41: the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to start after the time T5 is delayed;
step S42: the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to raise the frequency to the conventional frequency F0.
S5, after the compressor 5 is started or the frequency is increased to run for T6 time, the dryer controls the compressor 5 to stop or reduce the frequency, and the dryer controls the motor 10 to stop;
for step S5, step S5 includes any one of step S51, step S52, step S53;
wherein, step S51: after the compressor 5 runs for T6 time, the clothes dryer controls the compressor 5 to stop, and controls the motor 10 to stop after the clothes dryer delays for T7 time;
step S52: after the compressor 5 runs for T6 time, the dryer simultaneously controls the compressor 5 and the motor 10 to stop;
step S53: after the compressor 5 runs for T6 time, the clothes dryer controls the compressor 5 to be down-converted to the frequency F1, and the clothes dryer controls the motor 10 to stop after delaying T7 time;
after the compressor 5 runs for T6 time, the compressor 5 stops or reduces the frequency, the motor 10 stops, accordingly, the drum 1 stops rotating forward, which marks the end of the second forward rotation process of the dryer, and then the dryer starts the second reverse rotation process, i.e., step S6 is performed.
S6, controlling the motor 10 to rotate reversely by the clothes dryer, wherein the reverse rotation time is T8;
wherein, under the driving of the reverse rotation of the motor 10, the drum 1 also performs the reverse rotation, and performs the second reverse rotation process with the reverse rotation time T8, so that the load in the drum 1 rotates reversely again.
S7, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step S8; otherwise, returning to step S4;
wherein, a humidity sensor is arranged on the inner wall of the roller 1 to detect and acquire the moisture content of the load in real time; meanwhile, the clothes dryer compares the obtained moisture content of the load with the drying grade, if the moisture content of the load meets the requirement of the drying grade, the load is dried, and the step S8 is carried out; if the moisture content of the load does not reach the requirement of the drying grade, the drying of the load is not finished, the step S4 is returned, namely the second reverse rotation process is finished, then the third forward rotation process and the third reverse rotation process are sequentially carried out, and the steps are circularly carried out until the moisture content of the load reaches the requirement of the drying grade.
The drying grade comprises a plurality of grade gears, for example, the first grade gear is a first grade gear with the load moisture content of 60% -16%, the second grade gear is a second grade gear with the load moisture content of 16% -6%, the third grade gear is a third grade gear with the load moisture content of 6% -3%, and the fourth grade gear is a fourth grade gear with the load moisture content of less than 3%; a user may set any one of the level gears as a determination criterion of the drying level, and preferably, in this embodiment, the fourth level gear is used as the drying level, and the corresponding moisture content of the load is less than 3%.
And S8, stopping the dryer control motor 10 and the compressor 5, and finishing drying.
Wherein, the motor 10 and the compressor 5 are stopped, the roller 1 and the impeller 4 are stopped to rotate, and the drying is finished.
Example 3
In addition to embodiments 1 and 2, the present embodiment will be described with emphasis on a control method mainly involving stopping the compressor 5, on the condition that the number of times of forward rotation of the motor 10 is once greater than the number of times of reverse rotation of the motor 10; wherein, the clothes processing device is a clothes dryer which can be a fixed frequency clothes dryer or a variable frequency clothes dryer; the control method comprises the following steps:
d1, starting the clothes dryer, controlling the motor 10 to run, and controlling the compressor 5 to start after T1 time;
d2, after the compressor 5 runs for T2 time, the dryer controls the compressor 5 to stop, and the dryer controls the motor 10 to stop;
wherein, the step D2 includes any one of the steps D21 and D22;
wherein, the step D21: after the compressor 5 runs for T2 time, the clothes dryer controls the compressor 5 to stop, and controls the motor 10 to stop after the clothes dryer delays for T3 time;
step D22: after the compressor 5 runs for T2 time, the clothes dryer controls the compressor 5 and the motor 10 to stop at the same time.
D3, controlling the motor 10 to rotate reversely by the dryer, wherein the reverse rotation time is T4;
d4, the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to start after the dryer delays T5 time;
d5, after the compressor 5 is started for T6 time, the dryer controls the compressor 5 to stop, and the dryer controls the motor 10 to stop;
wherein, the step D5 includes any one of the steps D51 and D52;
wherein, the step D51: after the compressor 5 runs for T6 time, the clothes dryer controls the compressor 5 to stop, and controls the motor 10 to stop after the clothes dryer delays for T7 time;
step D52: after the compressor 5 runs for T6 time, the clothes dryer controls the compressor 5 and the motor 10 to stop at the same time.
D6, controlling the motor 10 to rotate reversely by the dryer, wherein the reverse rotation time is T8;
d7, the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to start after the dryer delays T9 time;
d8, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step D9; if not, returning to the step D5;
d9, stopping the dryer control motor 10 and the compressor 5, and finishing drying.
In order to avoid that the compressor 5 stops for a long time, which causes the heat pump system not to be adjusted to a normal operation state in time, and affects the drying process, in the process of stopping the compressor 5 in the steps D2 to D4, the stop time of the compressor 5 is T3+ T4+ T5, and the stop time of the compressor 5 is greater than or equal to the internal pressure balance time of the heat pump system;
during the shutdown of the compressor 5 in the steps D5 to D7, the shutdown time of the compressor 5 is T7+ T8+ T9, and the shutdown time of the compressor 5 is equal to or more than the heat pump system internal pressure balance time; therefore, the shutdown time of the compressor 5 is limited to ensure that the heat pump system can be timely adjusted to a normal operation state and the normal operation of the drying process is ensured; for a small heat pump system inside a conventional clothes dryer, the internal pressure balance time is generally 2 min.
In addition, since the drying rate is not the same due to different load materials and different drying difficulty degrees, in the control method, T2 ═ T6 or T2 ≠ T6, T3 ≠ T7 or T3 ≠ T7, T4 ═ T8 or T4 ≠ T8, T5 ≠ T9 or T5 ≠ T9, and it is specifically necessary to adjust the drying rate according to the actual load condition.
Example 4
In addition to embodiments 1-3, the present embodiment focuses on embodiment 3, and proposes a control method of a laundry treatment apparatus on the condition that the number of times of forward rotation of the motor 10 is the same as the number of times of reverse rotation of the motor 10, the control method being substantially the same as that of embodiment 3, except that: the embodiment does not need to perform step D7, i.e., after performing step D6, the embodiment proceeds to step D8.
Example 5
On the basis of embodiments 1 and 2, the present embodiment focuses on a control method mainly for a variable frequency dryer, on the condition that the number of times of forward rotation of the motor 10 is once more than the number of times of reverse rotation of the motor 10; specifically, the control method includes:
b1, starting the clothes dryer, controlling the motor 10 to run, and controlling the compressor 5 to start after T1 time;
b2, after the compressor 5 runs for T2 time, the dryer controls the compressor 5 to stop or reduce the frequency, and the dryer controls the motor 10 to stop;
wherein, the step B2 includes any one of the steps B21, B22 and B23;
wherein, the step B21: after the compressor 5 runs for T2 time, the clothes dryer controls the compressor 5 to stop, and controls the motor 10 to stop after the clothes dryer delays for T3 time;
step B22: after the compressor 5 runs for T2 time, the dryer simultaneously controls the compressor 5 and the motor 10 to stop;
step B23: after the compressor 5 runs for time T2, the dryer controls the compressor 5 to decrease to frequency F1, and the dryer controls the motor 10 to stop after delay T3.
B3, controlling the motor 10 to rotate reversely by the clothes dryer, wherein the reverse rotation time is T4;
b4, the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to start or increase the frequency;
wherein, the step B4 comprises any one of the steps B41 and B42;
wherein, the step B41: the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to start after the time T5 is delayed;
step B42: the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to raise the frequency to the conventional frequency F0.
B5, after the compressor 5 is started or the frequency is increased to run for T6 time, the dryer controls the compressor 5 to stop or reduce the frequency, and the dryer controls the motor 10 to stop;
wherein, the step B5 includes any one of the steps B51, B52 and B53;
wherein, the step B51: after the compressor 5 runs for T6 time, the clothes dryer controls the compressor 5 to stop, and controls the motor 10 to stop after the clothes dryer delays for T7 time;
step B52: after the compressor 5 runs for T6 time, the dryer simultaneously controls the compressor 5 and the motor 10 to stop;
step B53: after the compressor 5 runs for time T6, the dryer controls the compressor 5 to decrease to frequency F1, and the dryer controls the motor 10 to stop after delay T7.
B6, controlling the motor 10 to rotate reversely by the clothes dryer, wherein the reverse rotation time is T8;
b7, the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to start or increase the frequency;
wherein, the step B7 comprises any one of the steps B71 and B72;
wherein, the step B71: the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to start after the time T9 is delayed;
step B72: the dryer controls the motor 10 to stop, then controls the motor 10 to rotate forwards, and controls the compressor 5 to raise the frequency to the conventional frequency F0.
B8, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step B9; if not, returning to the step B5;
b9, stopping the dryer control motor 10 and the compressor 5, and finishing drying.
In the embodiment, the inverter dryer can control the compressor 5 to operate in any one of a frequency-down mode and a stop mode during the reverse rotation process, and correspondingly, when the inverter dryer returns to the forward rotation process, the compressor 5 needs to be controlled to operate in a corresponding frequency-up mode or a corresponding start mode.
Meanwhile, if the dryer controls the compressor 5 to be operated in a stopped manner in steps B2 to B4 or in steps B5 to B7; in order to avoid that the compressor 5 stops for a long time, which causes the heat pump system not to be adjusted to a normal operation state in time, and affects the drying process, in the process of stopping the compressor 5 in the steps B2 to B4, the stop time of the compressor 5 is T3+ T4+ T5, and the stop time of the compressor 5 is greater than or equal to the internal pressure balance time of the heat pump system;
during the shutdown of the compressor 5 in the steps B5 to B7, the shutdown time of the compressor 5 is T7+ T8+ T9, and the shutdown time of the compressor 5 is equal to or more than the heat pump system internal pressure balance time; therefore, the shutdown time of the compressor 5 is limited to ensure that the heat pump system can be timely adjusted to a normal operation state and the normal operation of the drying process is ensured; for a small heat pump system inside a conventional clothes dryer, the internal pressure balance time is generally 2 min.
In addition, since the drying rate is not the same due to different load materials and different drying difficulty degrees, in the control method, T2 ═ T6 or T2 ≠ T6, T3 ≠ T7 or T3 ≠ T7, T4 ═ T8 or T4 ≠ T8, T5 ≠ T9 or T5 ≠ T9, and it is specifically necessary to adjust the drying rate according to the actual load situation.
Example 6
In addition to embodiments 1, 2 and 5, the present embodiment focuses on embodiment 5, and proposes a control method of a laundry treatment apparatus on the condition that the number of times of forward rotation of the motor 10 is the same as the number of times of reverse rotation of the motor 10, the control method being basically the same as that of embodiment 5, except that: the embodiment does not need to perform step B7, i.e., after performing step B6, the embodiment proceeds to step B8.
Finally, the present invention further provides a clothes treatment apparatus, specifically a clothes dryer, preferably a heat pump clothes dryer, which includes, in addition to the heat pump system, clothes dryer components such as a housing, a base, a motor 10, a drum 1, a compressor 5, etc., and in view of the fact that the related component structures and the specific assembly relationships thereof are the prior art, details are not repeated herein; meanwhile, the clothes treatment device provided by the invention adopts the control method of the clothes treatment device; preferably, the dryer can be a full-frequency-conversion heat pump dryer or a full-frequency-conversion heat pump washing and drying integrated machine.
It should be noted that the terms "forward rotation", "reverse rotation", "forward rotation" and the like in the present invention are rotation modes of the drum and the motor in the conventional sense, and are not limited to a certain rotation direction of the drum and the motor; for example, if the rotation of the drum in the clockwise direction is regarded as "normal rotation", the "reverse rotation" is the rotation of the drum in the counterclockwise direction; and vice versa, which are not repeated herein in view of their general knowledge by those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A control method of a laundry treatment apparatus, which is a clothes dryer including a motor (10), a heat pump system including a compressor (5); the control method is characterized by comprising at least two forward rotation processes of the motor (10) and at least two reverse rotation processes of the motor (10), wherein the forward rotation processes of the motor (10) and the reverse rotation processes of the motor (10) are alternately carried out; during the reverse rotation of the motor (10), the compressor (5) is stopped or reduced in frequency, and during the forward rotation of the motor (10), the compressor (5) is started or increased in frequency to a conventional frequency.
2. A control method of a laundry treating apparatus according to claim 1, characterized in that, during the complete drying process, the number of times the motor (10) rotates in forward direction is the same as the number of times the motor (10) rotates in reverse direction, or the number of times the motor (10) rotates in forward direction is more than the number of times the motor (10) rotates in reverse direction.
3. A control method of a laundry treating apparatus according to claim 2, characterized in that the control method comprises:
s1, starting the clothes dryer, controlling the motor (10) to run, and controlling the compressor (5) to start after T1 time;
s2, after the compressor (5) runs for T2 time, the dryer controls the compressor (5) to stop or reduce the frequency, and controls the motor (10) to stop;
s3, controlling a motor (10) to rotate reversely by the clothes dryer, wherein the reverse rotation time is T4;
s4, the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forward, and controls the compressor (5) to start or increase frequency;
s5, after the compressor (5) is started or the frequency-up operation is carried out for T6 time, the clothes dryer controls the compressor (5) to stop or reduce the frequency, and the clothes dryer controls the motor (10) to stop;
s6, controlling a motor (10) to rotate reversely by the clothes dryer, wherein the reverse rotation time is T8;
s7, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step S8; otherwise, returning to step S4;
and S8, stopping the dryer control motor (10) and the compressor (5), and finishing drying.
4. The control method of a laundry treating apparatus according to claim 2, wherein the laundry treating apparatus is a fixed frequency dryer or a variable frequency dryer.
5. The control method of a laundry treating apparatus according to claim 4, wherein the laundry treating apparatus is a variable frequency dryer; the control method comprises the following steps:
b1, starting the clothes dryer, controlling the motor (10) to run, and controlling the compressor (5) to start after T1 time;
b2, after the compressor (5) runs for T2 time, the dryer controls the compressor (5) to stop or reduce the frequency, and controls the motor (10) to stop;
b3, the dryer control motor (10) rotates reversely, and the reverse rotation time is T4;
b4, the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forward, and controls the compressor (5) to start or increase frequency;
b5, after the compressor (5) is started or the frequency-up operation is carried out for T6 time, the clothes dryer controls the compressor (5) to stop or reduce the frequency, and the clothes dryer controls the motor (10) to stop;
b6, the dryer control motor (10) rotates reversely, and the reverse rotation time is T8;
b7, the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forward, and controls the compressor (5) to start or increase frequency;
b8, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step B9; if not, returning to the step B5;
b9, stopping the dryer control motor (10) and the compressor (5), and finishing drying.
6. The control method of a laundry treating apparatus according to claim 5, wherein the step B2 includes any one of the steps B21, B22, B23;
wherein, the step B21: after the compressor (5) runs for T2 time, the clothes dryer controls the compressor (5) to stop, and controls the motor (10) to stop after the clothes dryer delays T3 time;
step B22: after the compressor (5) runs for T2 time, the dryer simultaneously controls the compressor (5) and the motor (10) to stop;
step B23: after the compressor (5) runs for T2 time, the clothes dryer controls the compressor (5) to reduce the frequency to F1, and controls the motor (10) to stop after the time of T3 delay;
step B4 includes any one of step B41, step B42;
wherein, the step B41: the clothes dryer controls the motor (10) to stop, then controls the motor (10) to rotate forwards, and controls the compressor (5) to start after the clothes dryer delays T5 time;
step B42: the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forwards, and controls the compressor (5) to increase frequency to a conventional frequency F0;
step B5 includes any one of step B51, step B52, step B53;
wherein, the step B51: after the compressor (5) runs for T6 time, the clothes dryer controls the compressor (5) to stop, and controls the motor (10) to stop after the clothes dryer delays T7 time;
step B52: after the compressor (5) runs for T6 time, the dryer simultaneously controls the compressor (5) and the motor (10) to stop;
step B53: after the compressor (5) runs for T6 time, the clothes dryer controls the compressor (5) to reduce the frequency to F1, and controls the motor (10) to stop after the time of T7 delay;
step B7 includes any one of step B71, step B72;
wherein, the step B71: the clothes dryer controls the motor (10) to stop, then controls the motor (10) to rotate forwards, and controls the compressor (5) to start after the clothes dryer delays T9 time;
step B72: the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forwards, and controls the compressor (5) to increase the frequency to a conventional frequency F0.
7. A control method of a laundry treating apparatus according to claim 6, characterized in that, in the process of stopping the compressor (5) in the steps B2-B4, the stop time of the compressor (5) is T3+ T4+ T5, and the stop time of the compressor (5) is equal to or more than the heat pump system internal pressure balance time;
in the process of stopping the compressor (5) in the steps B5 to B7, the stop time of the compressor (5) is T7+ T8+ T9, and the stop time of the compressor (5) is more than or equal to the internal pressure balance time of the heat pump system;
in the control method, T2 ≠ T6 or T2 ≠ T6, T3 ≠ T7 or T3 ≠ T7, T4 ≠ T8 or T4 ≠ T8, T5 ≠ T9 or T5 ≠ T9.
8. The control method of a laundry treating apparatus according to claim 4, wherein the control method comprises:
d1, starting the clothes dryer, controlling the motor (10) to run, and controlling the compressor (5) to start after T1 time;
d2, after the compressor (5) runs for T2 time, the dryer controls the compressor (5) to stop, and the dryer controls the motor (10) to stop;
d3, the dryer control motor (10) rotates reversely, and the reverse rotation time is T4;
d4, the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forward, and the dryer controls the compressor (5) to start;
d5, after the compressor (5) is started for T6 time, the dryer controls the compressor (5) to stop, and the dryer controls the motor (10) to stop;
d6, the dryer control motor (10) rotates reversely, and the reverse rotation time is T8;
d7, the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forward, and the dryer controls the compressor (5) to start;
d8, judging whether the moisture content of the load reaches a drying grade or not by the clothes dryer; if yes, go to step D9; if not, returning to the step D5;
d9, stopping the dryer control motor (10) and the compressor (5), and finishing drying.
9. The control method of a laundry treating apparatus according to claim 8, wherein the step D2 includes any one of the steps D21, D22;
wherein, the step D21: after the compressor (5) runs for T2 time, the clothes dryer controls the compressor (5) to stop, and controls the motor (10) to stop after the clothes dryer delays T3 time;
step D22: after the compressor (5) runs for T2 time, the dryer simultaneously controls the compressor (5) and the motor (10) to stop;
step D4, the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forward, and controls the compressor (5) to start after the time T5 is delayed;
step D5 includes any one of step D51, step D52;
wherein, the step D51: after the compressor (5) runs for T6 time, the clothes dryer controls the compressor (5) to stop, and controls the motor (10) to stop after the clothes dryer delays T7 time;
step D52: after the compressor (5) runs for T6 time, the dryer simultaneously controls the compressor (5) and the motor (10) to stop;
and D7, the dryer controls the motor (10) to stop, then controls the motor (10) to rotate forwards, and controls the compressor (5) to start after the time T9 is delayed.
10. A laundry treating apparatus, characterized in that the laundry treating apparatus includes a dryer, and the laundry treating apparatus employs the control method of the laundry treating apparatus according to any one of claims 1 to 9.
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