Method and apparatus for controlling clothes treatment device, and clothes treatment device

Abstract

A method and apparatus for controlling a clothes treatment device, and a clothes treatment device. The control method comprises: in response to a target drying program being triggered, controlling a first rotor (1100) to drive a drying drum (5100) to rotate continuously at a first rotational speed, while controlling a second rotor (1200) to drive a fan (5200) to rotate at a second rotational speed, where the first rotor (1100) causes a load to be dried to remain stationary relative to an inner wall of the drying drum (5100), and the second rotational speed is less than the first rotational speed. By controlling the first rotor (1100) to drive the drying drum (5100) to rotate at the first rotational speed, the load to be dried rotates while adhering to the wall, avoiding excessive wear of said load relative to the drying drum (5100) and itself. At the same time, controlling the second rotor (1200), independent of the first rotor (1100), to drive the fan (5200) at a second rotational speed lower than the first rotational speed prevents the drying airflow from becoming too fast, thereby avoiding blowing condensed water into an air duct or the drying drum (5100).

Description

Control method and device for clothes processing equipment and clothes processing equipment

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on March 29, 2024, with application number 202410379639.9 and invention name “Control method, device and clothing processing equipment for clothing processing equipment”, the entire contents of which are incorporated by reference in this disclosure. Technical Field

[0002] The present disclosure relates to the technical field of clothing processing equipment, and in particular to a control method and device for clothing processing equipment, and the clothing processing equipment. Background Art

[0003] Materials such as wool sweaters and silk that require drying are non-wearable. When dried using conventional drying control methods in clothing drying equipment, these materials can cause surface microstructure damage and pilling. To avoid these problems, existing technologies drive a drying drum at high speed, utilizing the centrifugal force generated by the high-speed rotation to force the non-wearable load to adhere to the wall and rotate synchronously with the drying drum. This process also involves blowing a hot drying airflow into the drying drum as the drying drum rotates, thereby drying the non-wearable load.

[0004] Current laundry processing equipment uses a single motor to simultaneously drive the drying drum and the centrifugal fan that creates airflow. Because this single motor drives both the drying drum and the centrifugal fan, when the drying drum rotates at high speed, causing the non-wearable clothing to adhere to the wall as described above, the centrifugal fan's impeller also rotates at high speed. The high-speed forward rotation of the centrifugal fan creates a high-speed airflow on the surface of the evaporator in the laundry processing equipment's heat pump unit. This high-speed airflow carries evaporator condensate into the air duct, from which it flows back to the drying drum, rewetting the non-wearable load.

[0005] To prevent water droplets from flowing back into the drying drum and requiring rewetting of the non-wearable load, existing clothing processing equipment uses a single motor to rotate in reverse, driving the drying drum and centrifugal fan at high speeds. This utilizes the fact that reverse impeller rotation cannot generate high airflow, thereby preventing high-speed airflow from forming on the evaporator surface and, consequently, from dragging water droplets into the air duct. However, the reverse rotation of the impeller slows the airflow rate throughout the entire airflow channel of the clothing processing equipment, resulting in slower heat exchange between the non-wearable load and the airflow, and slower water vapor evaporation. This results in extremely low drying efficiency and prolonged drying time.

[0006] Summary of the Invention

[0007] (1) Technical issues to be resolved

[0008] The technical problem to be solved by the present disclosure is to solve the problem of the prior art in which, when using a clothing processing device to dry non-wear-resistant clothing, the single motor is controlled to rotate in reverse to drive the drying drum and centrifugal fan to rotate at high speed, and the reverse rotation of the impeller cannot generate a large air volume, thereby preventing the formation of high-speed airflow on the evaporator surface and thus preventing water droplets from being drawn into the air duct due to the high-speed airflow. However, due to the reverse rotation of the impeller, the flow rate of the airflow in the entire airflow channel of the clothing processing device is slow, resulting in slow heat exchange between the non-wear-resistant load and the airflow and slow evaporation of water vapor, resulting in extremely low drying efficiency and long drying time.

[0009] (2) Technical solution

[0010] To address the aforementioned technical issues, the present disclosure provides a control method, device, and laundry processing apparatus for a laundry processing device, thereby preventing excessive wear on the drying drum and the laundry processing device itself. Furthermore, a second rotor, independent of the first rotor, is controlled to drive the fan at a second speed that is lower than the first speed, thereby preventing excessive drying airflow velocity and, consequently, preventing condensed water from being blown into the air duct or the drying drum.

[0011] In a first aspect, the present disclosure provides a control method for a laundry processing device, the laundry processing device comprising a drying drum, a fan, a drive motor, and a heat pump device, the drive motor comprising a first rotor and a second rotor; the first rotor driving the drying drum to rotate, and the second rotor driving the fan to rotate; the method comprising:

[0012] In response to a target drying program being triggered, controlling the first rotor to drive the drying drum to rotate continuously at a first speed, and controlling the second rotor to drive the fan to rotate at a second speed;

[0013] Wherein: the first rotor makes the load to be dried stationary relative to the inner wall of the drying drum; the second rotation speed is lower than the first rotation speed.

[0014] In some optional implementations, before controlling the second rotor to drive the fan to rotate at the second speed, the method further includes:

[0015] controlling the second rotor to drive the fan to rotate at a third speed, and controlling the heat pump device to start heating; wherein the third speed is greater than the first speed;

[0016] A detection temperature generated by a target temperature sensor is periodically acquired, and it is determined whether a temperature state of the laundry treatment device reaches a set temperature based on the detection temperature.

[0017] In some optional implementations, controlling the first rotor to drive the drying drum to rotate continuously at a first speed includes:

[0018] It is determined that the temperature of the clothes processing device reaches the set temperature, and the first rotor is controlled to drive the drying drum to rotate continuously at the first speed.

[0019] In some optional implementations, periodically acquiring the detected temperature generated by the target temperature sensor includes:

[0020] The detected temperature generated by temperature detection by a temperature sensor located at the exhaust outlet of the compressor in the heat pump device is periodically obtained.

[0021] In some optional implementations, during the process of controlling the second rotor to drive the fan to rotate at a third speed, the method further includes:

[0022] The first rotor is controlled to rotate the drying drum according to a preset rotation-stop ratio, a preset rotation-stop cycle and a fourth rotation speed; the fourth rotation speed is less than the first rotation speed.

[0023] In some optional implementations, during the process of controlling the first rotor to drive the drying drum to continuously rotate at the first speed, the method further includes:

[0024] Get the real-time moisture content of the load to be dried;

[0025] It is determined that the real-time moisture content is less than the determined dry moisture content, and the first rotor is controlled to drive the drying drum to continue rotating at a fifth speed for a set time period; the fifth speed is less than the first speed.

[0026] In some optional implementations, during the process of controlling the first rotor to drive the drying drum to continue rotating at the fifth speed for a set time period, the method further includes:

[0027] The second rotor is controlled to continue to rotate the drying drum at the second speed for the set time period.

[0028] In some optional implementations, the method further includes:

[0029] It is determined that the real-time moisture content is less than the determined moisture content, and the compressor in the heat pump device is controlled to stop.

[0030] In some optional implementations, obtaining the real-time moisture content of the load to be dried includes:

[0031] controlling the first rotor to drive the drying drum to rotate according to a first set parameter, and obtaining a first operating parameter of the first rotor;

[0032] controlling the second rotor to drive the fan impeller to rotate according to a second set parameter, and obtaining a second operating parameter of the second rotor;

[0033] The real-time moisture content of the load to be dried is determined according to the first operating parameter and the second operating parameter.

[0034] In some optional implementations, determining the real-time moisture content of the load to be dried based on the first operating parameter and the second operating parameter includes:

[0035] determining an estimated weight of the load to be dried based on the first operating parameter, and determining an estimated volume of the load to be dried based on the second operating parameter;

[0036] The real-time moisture content of the load to be dried is determined according to the estimated weight, the estimated volume and the dry density of the load to be dried.

[0037] In a second aspect, the present disclosure further provides a control device for a laundry processing device, the laundry processing device comprising a drying drum, a fan, a drive motor, and a heat pump device, the drive motor comprising a first rotor and a second rotor; the first rotor drives the drying drum to rotate, and the second rotor drives the fan to rotate; the device comprising:

[0038] a control unit, configured to, in response to a target drying program being triggered, control the first rotor to drive the drying drum to continuously rotate at a first speed, and simultaneously control the second rotor to drive the fan to rotate at a second speed;

[0039] Wherein: the first rotor makes the load to be dried stationary relative to the inner wall of the drying drum; the second rotation speed is lower than the first rotation speed.

[0040] In a third aspect, an embodiment of the present disclosure further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a program or instruction; the program or instruction enables a computer to execute the steps of the method described in the first aspect.

[0041] In a fourth aspect, an embodiment of the present disclosure also provides a clothing processing device, comprising a controller and an actuator; wherein the actuator comprises a drying drum, a fan, a drive motor and a heat pump device, and the drive motor comprises a first rotor and a second rotor; the first rotor drives the drying drum to rotate, and the second rotor drives the fan to rotate; the controller controls the actuator according to the control method of the clothing processing device as described in the first aspect.

[0042] (3) Beneficial effects

[0043] The above technical solution provided by the embodiments of the present disclosure has the following advantages compared with the prior art:

[0044] Using the solution provided by the embodiments of the present disclosure, by controlling the first rotor to drive the drying drum at a first speed, the load to be dried can be rotated against the wall, thereby preventing excessive wear of the load on the drying drum and the drying drum itself. Simultaneously, controlling the second rotor, independent of the first rotor, to drive the fan at a second speed, which is lower than the first speed, can prevent the generated drying airflow from being too high, thereby preventing condensed water from being blown into the air duct or the drying drum.

[0045] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0047] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0048] FIG1 is a schematic structural diagram of some components of a clothing processing device in some applications of the present disclosure;

[0049] FIG2 is a schematic diagram of the structure of a dual-rotor motor and part of the output transmission mechanism;

[0050] FIG3 is an exploded schematic diagram of the structure in FIG2 ;

[0051] FIG4 is a flow chart of a control method for a clothes treating apparatus according to some embodiments of the present disclosure;

[0052] FIG5 is a flow chart of a control method for a clothes treating apparatus according to another embodiment of the present disclosure;

[0053] FIG6 is a flow chart of a control method for a clothing processing device provided in some further embodiments of the present disclosure. DETAILED DESCRIPTION

[0054] The following describes embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0055] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the processes performed by these devices, modules or units.

[0056] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0057] In order to solve the problem that the existing clothing processing equipment uses a single motor to simultaneously drive the drying drum and the centrifugal fan, and can only achieve wall drying of non-wear-resistant loads and avoid high-speed airflow driving water droplets to flow back into the drying drum by controlling the single motor to drive the drying drum and the impeller in reverse, the embodiments of the present disclosure provide a new clothing processing equipment and a control method for the clothing processing equipment.

[0058] The following first analyzes the structure of the clothing processing device provided by the embodiment of the present disclosure, and then analyzes the control method of the clothing processing device based on the above structure.

[0059] Similar in overall structure to conventional laundry processing devices, the laundry processing device provided in the embodiments of the present disclosure includes a heat pump device, a drying drum, and a centrifugal fan. An airflow channel is formed between the condenser, evaporator, and drying drum of the heat pump device. The centrifugal fan is disposed within the airflow channel and, when rotated, drives air within the airflow channel to form a flowing airflow.

[0060] Unlike the prior art, the laundry processing device in the embodiment of the present disclosure uses two different power sources to drive the impellers of the drying drum and the centrifugal fan respectively. In other words, the rotation of the drying drum and the centrifugal fan is independent.

[0061] In some specific applications, the laundry processing device includes two independently arranged motors, namely a first rotor and a second rotor, wherein the first rotor in the first rotor drives the drying drum to rotate, and the second rotor in the second rotor drives the centrifugal fan to rotate.

[0062] In some other embodiments, the laundry processing device includes a dual-rotor motor, wherein a first rotor and a second rotor of the dual-rotor motor can rotate independently, the first rotor drives the drying drum to rotate, and the second rotor drives the centrifugal fan to rotate.

[0063] Unlike the prior art, the laundry processing device in this embodiment utilizes two separate power sources to drive the drying drum and fan, respectively. In other words, the drying drum and fan rotate independently. The reason for utilizing two separate power sources for the drying drum and fan in this embodiment will be discussed later in our analysis of the control method for this solution.

[0064] In an embodiment of the present disclosure, the laundry processing device includes a dual-rotor motor, wherein a first rotor and a second rotor of the dual-rotor motor can rotate independently, the first rotor driving the drying drum to rotate, and the second rotor driving the fan to rotate.

[0065] Figure 1 is a schematic diagram of the structure of some components of the laundry processing device disclosed in some applications of this disclosure, Figure 2 is a schematic diagram of the structure of a dual-rotor motor and part of the output transmission mechanism, and Figure 3 is an exploded view of the structure in Figure 2. Figures 1-3 illustrate the structure in which the two rotors in the dual-rotor motor 100 independently drive the drying drum 5100 and the fan 5200 through the transmission shaft.

[0066] As shown in the figure, the dual-rotor motor 100 in the disclosed embodiment includes a stator 1300, a first rotor 1100, a second rotor 1200, a first transmission shaft 2000, and a second transmission shaft 4100. The first transmission shaft 2100 is rigidly connected to the second rotor 1200 and includes a first shaft portion 2100 disposed within the dual-rotor motor 100 and a second shaft portion 2200 disposed outside the dual-rotor motor. The second transmission shaft 4100 is rigidly connected to the first rotor 1100. As shown in FIG3 , the second conventional shaft 4100 in the disclosed embodiment is fixedly connected to a flange disposed on the second rotor 1200 via screws.

[0067] A first pulley 4120 is mounted on the second transmission shaft 4100. The first pulley 4120 drives the second pulley 4200 to rotate via a first transmission belt 4400. The second pulley 4200 then drives the drying drum 5100 to rotate via a second transmission belt 4300. When the first rotor 1100 rotates, it drives the drying drum 5100 to rotate via the second transmission shaft 4100, the first pulley 4120, the first transmission belt 4400, the second pulley 4200, and the second transmission belt 4300, causing the drying drum 5100 to rotate at a corresponding speed.

[0068] The transmission ratio between the drying drum 5100 and the first rotor 1100 is determined by the ratio of the radii of the first pulley 4120 to the portion of the second pulley 4200 on which the second transmission belt 4300 is mounted, as well as the ratio of the radii of the portion of the second pulley 4200 that rotates the first transmission belt 4300 to the drying drum. Assuming a transmission ratio of 1:50 between the drying drum 5100 and the first rotor 1100 and a rotational speed of 2500 rpm, the rotational speed of the drying drum 5100 is 50 rpm.

[0069] In addition, a first boss portion 4110 and a second boss portion (located on the side of the first pulley away from the first rotor 1100 ) are provided on the second transmission shaft 4100 , and the first boss portion 4110 and the second boss portion realize axial positioning of the first transmission belt 4400 .

[0070] As shown in the figure, the first shaft portion 2100 and the second shaft portion 2200 are connected by a spline, and the second shaft portion 2200 is directly rigidly connected to the fan 5200. When the second rotor 1200 rotates, it drives the fan 5200 to rotate at the same speed through the second shaft portion 2100 and the second shaft portion 2200.

[0071] The dual-rotor motor in this embodiment also includes a first support wheel 3100 and a second support wheel 3200. The first support wheel 3100 is mounted on the first shaft 2100, with a bearing 4130 disposed between the first support wheel 3100 and the first shaft 2100. The second support wheel 3200 is mounted on the second shaft, with a bearing also disposed between the second support wheel 3200 and the second shaft 2200. The first and second support wheels 3100 and 3200 cooperate to position the dual-rotor motor 100 on the base of the laundry processing device.

[0072] Continuing with the drawings, in the disclosed embodiment, a reinforcement portion 1310 is provided on the housing of the dual-rotor motor. A movable but limited movable shaft 4210 is disposed within the reinforcement portion 1310. A first pulley 4120 is sleeved on the movable shaft 4210. Furthermore, a lug 6000 is provided on the movable shaft 4210, which is connected to the housing of the dual-rotor motor via a spring 7000. The spring 7000 pulls the movable shaft 4210 via the lug, which in turn drives the first pulley 4120 to move, thereby tensioning the second transmission belt 4300 and the first transmission belt 4400.

[0073] The following is a flow chart of a control method for a laundry processing device according to an embodiment of the present disclosure. FIG4 is a flow chart of a control method for a laundry processing device according to some embodiments of the present disclosure. As shown in FIG4 , the control method for a laundry processing device according to an embodiment of the present disclosure includes S110 .

[0074] S110: In response to the target drying program being triggered, controlling the first rotor to drive the drying drum to rotate continuously at a first speed, and controlling the second rotor to drive the fan to rotate at a second speed.

[0075] In the embodiment of the present disclosure, the clothes processing device is provided with a plurality of instructions for selecting the drying type for the load to be dried.

[0076] For example, in some embodiments, the drying programs include a large-item drying program, a conventional drying program, a cradle drying program, and a wall drying program. The large-item drying program is used to control the drying drum to alternately rotate forward and reverse at equal times to prevent large loads to be dried from being excessively entangled; the conventional drying program is used to control the drying drum to dry according to a conventional forward and reverse rhythm and speed; the cradle drying program is used to control the drying drum to alternately swing forward and backward like a cradle to achieve drying of easily deformed and easily worn loads. The wall drying program is used to control the drying drum to rotate at high speed, using the centrifugal force generated by the high-speed rotation of the drying drum to make the load to be dried close to the inner wall of the drying drum and remain stationary relative to the inner wall of the drying drum.

[0077] In a specific implementation, after the clothes processing device is powered on, the clothes processing device can display control icons or control buttons corresponding to various drying programs. The user can select the drying program by selecting the corresponding control icon or control button to determine the target drying program.

[0078] The target drying program in the disclosed embodiment is the aforementioned wall-drying program. After the user selects the wall-drying program and confirms the start of the drying operation, the laundry processing device performs the drying operation on the load to be dried according to the wall-drying program. Specifically, the drying operation on the load to be dried according to the wall-drying program includes controlling the movement of the drying drum, the fan, and the heating device.

[0079] As previously analyzed, the first rotor is the power source that drives the drying drum's tumbling motion. Accordingly, controlling the drying drum's motion essentially involves controlling the first rotor's rotation. In the disclosed embodiment, the laundry processing apparatus controls the first rotor to continuously rotate the drying drum at a first rotational speed. This first rotational speed is the speed that causes the load to be dried to remain stationary relative to the inner wall of the drying drum. To achieve this goal, the first rotational speed is a high speed.

[0080] As previously analyzed, the second rotor is the power source that drives the fan. Accordingly, controlling the fan is essentially controlling the second rotor. In the disclosed embodiment, the laundry processing device controls the second rotor to drive the fan at a second speed. In this embodiment, the fan is a centrifugal fan. To generate a high airflow rate when controlling the second rotor to drive the fan, the second rotor should be controlled to drive the fan in a continuous forward rotation direction.

[0081] In the disclosed embodiment, the heating device of the clothing processing apparatus is a heat pump device. Accordingly, controlling the operation of the heat pump device in the clothing processing apparatus involves controlling the rotation of the heat pump device's compressor while rationally controlling the expansion valve located between the condenser and the evaporator to open to a reasonable degree. The evaporator is utilized to cool the water-containing airflow exiting the drying drum and to allow water vapor to precipitate to form a dry airflow. The condenser is utilized to heat the aforementioned dry airflow, which is then directed into the drying drum. The heated dry airflow is then utilized to heat the load to be dried, which is attached to the wall of the drying drum. This results in the load being heated or free water therein being evaporated by heat absorption, thereby drying the load.

[0082] Because the drying drum and impeller of the centrifugal fan of the laundry processing device in the disclosed embodiment are driven by different drive motors, the first rotor is controlled to drive the drying drum at a first speed, thereby achieving a wall-mounted rotation of the load to be dried, thereby preventing excessive wear of the load on the drying drum and the device itself. Simultaneously, the second rotor is controlled to drive the fan at a second speed, which is lower than the first speed, thereby preventing the drying airflow from being too high, thereby preventing condensed water on the evaporator surface from being blown into the air duct or the drying drum.

[0083] A little more explanation is given here. In actual applications, the control method of the clothing processing device in the embodiment of the present disclosure is mostly used to achieve drying of light loads that need to be dried, and the aforementioned loads that need to be dried are mostly loads such as silk fabrics and wool fabrics.

[0084] In some practical applications, after the laundry processing device starts the drying operation for the load to be dried, the drying operation for the load to be dried is started according to the method of S110 until the dryness or moisture content of the load to be dried reaches a set level. In other embodiments, after the laundry processing device is started, the drying operation for the load to be dried is not started directly according to the aforementioned S110, but the drying operation for the load to be dried is performed according to the aforementioned S110 only after the set conditions are met.

[0085] Fig. 5 is a flow chart of a control method for a laundry processing device according to another embodiment of the present disclosure. As shown in Fig. 5 , in some other embodiments of the present disclosure, the control method for a laundry processing device includes steps S210-S230.

[0086] S210: In response to the wall-baking program being triggered, controlling the second rotor to drive the fan to rotate at a third speed, and controlling the heat pump device to start heating.

[0087] In practice, after a clothes processing device starts drying a load, the drying drum and the load are often at a relatively low temperature. At this low temperature, the evaporation efficiency of the free water in the load is low. At this time, the impeller is controlled to rotate, and hot air generated by the heat pump is blown into the drying drum. This heats the drying drum and the load until the temperature reaches a reasonable level, allowing the free water in the load to evaporate rapidly.

[0088] However, if the drying drum is controlled to rotate at a high speed according to the first drum speed in the aforementioned low temperature state to achieve the wall adhesion of the load to be dried, there will not be much drying effect, but more energy consumption will occur.

[0089] To avoid this problem, in the embodiment of the present disclosure, after the heat pump device is started, only the second rotor is controlled to rotate to drive the impeller to rotate in the forward direction, and the first rotor is not directly controlled to drive the drying drum to rotate continuously at the first speed.

[0090] In order to increase the heat exchange efficiency and transfer the heat generated by the heat pump device to the drying drum and the load to be dried as quickly as possible, the air flow rate needs to be increased. To achieve the above purpose, in the embodiment of the present disclosure, the third speed is greater than the second speed.

[0091] S220: Periodically obtain the detection temperature generated by the target temperature sensor, and determine whether the temperature state of the clothing processing device reaches the set temperature based on the detection temperature; if so, execute S230; if not, continue to execute S210.

[0092] While controlling the second rotor to drive the impeller, the controller periodically acquires a detected temperature generated by the target temperature sensor. The detected temperature indicates whether the heating state of the laundry processing device has reached a set temperature. The set temperature indicates that the temperature of the laundry processing device (specifically, the drying drum) has reached a higher temperature.

[0093] The aforementioned target temperature sensor is set at a specific position, and the temperature data detected by the sensor can indicate that the temperature of the drying drum in the clothes processing device has met the requirements.

[0094] In some embodiments, the target temperature sensor may be a sensor for detecting the temperature state of the drying drum, which may be a temperature sensor provided at the air inlet of the drying drum, inside the drying drum, or at the air outlet of the drying drum.

[0095] In other embodiments, the target temperature sensor may be a temperature sensor disposed within the heat pump device, for example, a temperature sensor disposed at the exhaust outlet of a compressor within the heat pump device. In practical applications, if the exhaust outlet temperature of the heat pump device's compressor is high, the entire system is determined to be operating in a relatively constant temperature state, rather than in a heating state, indirectly indicating that the temperature within the drying drum is high. In this case, periodically acquiring the detected temperature generated by temperature detection by the target temperature sensor in S210 specifically involves periodically acquiring the detected temperature generated by temperature detection by the temperature sensor located at the exhaust outlet of the compressor within the heat pump device.

[0096] S230: Control the first rotor to drive the drying drum to rotate continuously at a first speed, and control the second rotor to drive the fan to rotate at a second speed.

[0097] Based on the above analysis, if the detected temperature is greater than the set temperature, it indicates that the temperature inside the drying drum is high, and the evaporation rate of free water in the load to be dried can be faster. In this case, the first rotor can be controlled to continuously rotate the drying drum at a first speed, ensuring that the load to be dried remains stationary relative to the inner wall of the drying drum during rotation. At this time, the second rotor can be controlled to drive the fan at a second speed, which is lower than the first speed, to prevent condensed water on the condenser surface from being blown into the air duct or the drying drum.

[0098] Of course, in order to achieve the drying function of the load that needs to be dried, during the execution of S230 , the compressor in the heat pump device is always working to generate heat.

[0099] As previously analyzed, controlling the second rotor to drive the fan at the third speed in S210 accelerates the drying drum's temperature by increasing the airflow velocity. However, the load to be dried can only be heated internally through heat conduction between the drying drum wall and the drum itself, not directly through heat convection with the hot dry air flowing through the drying drum. This results in a slow internal temperature increase. To address this issue, in some embodiments, S240 may be performed concurrently with S210.

[0100] S240: Control the first rotor to rotate the drying drum according to a preset rotation-stop ratio, a preset rotation-stop cycle and a fourth speed.

[0101] In a specific implementation, the first rotor drives the drying drum to rotate according to the set rotation-stop ratio, the set rotation-stop cycle and the fourth speed, so that the drying drum can flip and / or shake out the load to be dried within the rotation time determined by the set rotation-stop ratio and the set rotation-stop cycle.

[0102] In a specific implementation, the aforementioned set rotation-stop ratio is a very small ratio, the set rotation-stop period is a relatively long rotation-stop period, and the fourth speed is a speed that ensures that the drying load is turned over or shaken during the rotation of the drying drum. In actual application, the fourth speed is lower than the aforementioned first speed.

[0103] In the embodiment of the present disclosure, while executing the aforementioned S230, the controller may also execute the following S240-250.

[0104] S240: Obtain the real-time moisture content of the load to be dried, and determine whether the real-time moisture content is less than the determined moisture content; if so, execute S250; if not, continue to execute S230.

[0105] In some embodiments, a contact moisture content detection sensor may be provided in the laundry processing device. The above-mentioned obtaining the real-time moisture content of the load to be dried may specifically include: obtaining moisture content detection data generated by the contact sensor, and determining the real-time moisture content of the load to be dried based on the moisture content detection data.

[0106] In specific implementations, a moisture content sensor is positioned inside the front support of the drying drum, near the outer edge of the drying drum's opening. As the load to be dried swings with the drying drum, the portion of the load located at the drum's edge comes into contact with the moisture content sensor, generating moisture content data. Based on this data, the real-time moisture content of the load to be dried is determined. The specific moisture content sensor types and detection principles will not be discussed in detail here; please refer to relevant technical literature for details.

[0107] In some other embodiments, the clothes processing device may determine the real-time moisture content of the load to be dried according to S241 - S243 as follows.

[0108] S241: Control the first rotor to drive the drying drum to rotate according to the first set parameter, and obtain the first operating parameter of the first rotor.

[0109] The first set parameter may be the speed of the first rotor, and the first operating parameter may be the rotational power or rotor torque of the first rotor when rotating at the aforementioned speed. In this case, controlling the first rotor to drive the drying drum to rotate according to the first set parameter means controlling the first rotor to rotate at a constant speed; correspondingly, obtaining the first operating parameter of the first rotor means obtaining the rotational power or rotor torque of the first rotor.

[0110] S242: Control the second rotor to drive the fan impeller to rotate according to the second set parameter, and obtain the second operating parameter of the second rotor.

[0111] The second set parameter may be the speed of the second rotor, and the second operating parameter may be the rotational power or rotor torque of the second rotor when rotating at the aforementioned speed. In this case, controlling the second rotor to drive the drying drum to rotate according to the second set parameter means controlling the second rotor to rotate at a constant speed; accordingly, obtaining the second operating parameter of the second rotor means simultaneously detecting the rotational power or rotor torque of the second rotor.

[0112] S243: Determine the real-time moisture content of the load to be dried according to the first operating parameter and the second operating parameter.

[0113] In some embodiments, a data comparison table is provided in the processor of the clothing processing device. After determining the first operating parameter and the second operating parameter, the data comparison table can be searched according to the first operating parameter and the second operating parameter to determine the real-time moisture content of the load to be dried.

[0114] In some other embodiments, the following S2431-S2433 may be used to determine the real-time moisture content of the load to be dried.

[0115] S2431: Determine the initial weight of the load to be dried according to the first operating parameter.

[0116] In some embodiments, a correspondence table between the initial weight of a specific type of load to be dried and the first operating parameter is predetermined. After the first operating parameter is determined, the correspondence table can be searched based on the rotor torque to determine the initial weight of the load to be dried.

[0117] S2432: Determine an estimated volume of the load to be dried based on the second operating parameter.

[0118] In some embodiments, a correspondence table between the estimated volume of a specific type of load to be dried and the second operating parameter is predetermined. After the second operating parameter is determined, the correspondence table can be searched based on the second operating parameter to determine the estimated volume of the load to be dried.

[0119] S2433: Determine the real-time moisture content of the load to be dried based on the initial weight, the estimated volume, and the dry density of the load to be dried.

[0120] The dry state density of the load to be dried is determined in advance by experiments. In specific implementation, the dry state density of the load to be dried can be determined based on the type of the load to be dried.

[0121] After determining the dry density value of the load to be dried, the dry weight of the load to be dried can be calculated based on the dry density of the load to be dried and its estimated volume. In some embodiments, the volume of the load to be dried in the dry state is increased relative to the wet state, and the increase ratio is determined according to the material properties of the load to be dried. Therefore, the dry volume of the load to be dried can be determined by multiplying the estimated volume of the load to be dried by a pre-set proportional coefficient. The initial water content of the load to be dried can be obtained by subtracting the aforementioned dry weight from the initial weight. The real-time moisture content of the load to be dried can be obtained by dividing the aforementioned initial water content by the estimated volume.

[0122] S250: Control the first rotor to drive the drying drum to continue rotating at the fifth speed for a set time period.

[0123] In actual applications, if the drying operation of the load to be dried is stopped immediately, the load to be dried may become overstretched, deformed, or entangled due to the high-speed rotation in the early stage. If the drying operation of the load to be dried is stopped immediately, the load to be dried may be in the aforementioned overstretched and severely entangled state.

[0124] To avoid the aforementioned problem, the disclosed embodiment reduces the speed of the first rotor from the first speed to the fifth speed after determining that the load to be dried meets the drying criteria. When the drying drum is driven from the first speed to the fifth speed, the load to be dried is shaken loose within the drying drum, thereby reducing the degree of excessive stretching, deformation, or entanglement of the load to be dried.

[0125] In the embodiment of the present disclosure, while executing the aforementioned S250 , the following S260 and S270 may also be executed simultaneously.

[0126] S260: Determine that the real-time moisture content is less than the determined dry moisture content, and control the compressor in the heat pump device to stop.

[0127] When it is determined that the real-time moisture content is lower than the judged dry moisture content, theoretically, the drying operation of the load to be dried can be stopped, and there is no need to provide heat to the drying drum for drying the load to be dried. At this time, the compressor of the heat pump device can be controlled to stop.

[0128] S270: Control the second rotor to continue to control the drying drum to rotate at the second speed for a set time period.

[0129] When the compressor is stopped, the condenser temperature of the heat pump device is high, that is, it still accumulates a lot of heat. At this time, the second rotor is controlled to continue to rotate the drying drum at the second speed, and the circulating airflow can continue to transfer the heat from the condenser to the drying drum.

[0130] Figure 6 is a flow chart of a control method for a laundry processing device according to some further embodiments of the present disclosure. To more clearly define the control method for a laundry processing device, the control process is further described below using Figure 6. As shown in Figure 6, the control method for a laundry processing device includes steps S310-S350.

[0131] S310: In response to the wall drying program being triggered, the second rotor is controlled to drive the fan to rotate at a third speed, the heat pump device is controlled to start heating, and the first rotor is controlled to rotate the drying drum according to a preset start-stop ratio, a preset start-stop cycle and a fourth speed.

[0132] The third speed is a relatively high speed. Setting the second speed to the third speed can increase the air circulation speed and speed up the temperature rise rate of the drying drum and the load to be dried. In one embodiment, the third speed is set to 3200 rpm.

[0133] In some embodiments, the compressor in the heat pump device is a variable frequency compressor. Controlling the heat pump device to start operation is controlling the compressor in the heat pump device to increase the frequency to a specific frequency. For example, in one embodiment, the variable frequency compressor in the heat pump device gradually increases the frequency to 63 Hz.

[0134] Controlling the first rotor to rotate the drying drum according to a set rotation-stop ratio, a set rotation-stop cycle, and the fourth speed is intended to achieve turnover and loosening of the load being dried while minimizing wear on the load, thereby accelerating the temperature rise of the load being dried. In one embodiment, the fourth speed is 2700 rpm, the rotation-stop ratio is set to 1:12, and the rotation-stop cycle is set to 130 seconds. In other words, the first rotor is activated for 10 seconds every two minutes, driving the drying drum at 2700 rpm.

[0135] S320: Periodically obtain the detection temperature generated by the target temperature sensor, and determine whether the temperature state of the clothing processing device reaches the set temperature based on the detection temperature; if so, execute S330; if not, execute S310.

[0136] In the embodiment of the present disclosure, the target temperature sensor is a temperature sensor installed at the exhaust outlet of the compressor. In other words, the laundry processing device determines whether the entire system has entered a reasonable high temperature state based on the exhaust temperature of the compressor.

[0137] S330: Control the first rotor to drive the drying drum to rotate continuously at the first speed, control the second rotor to drive the fan to rotate at the second speed, and control the compressor to continue working.

[0138] In the disclosed embodiment, the first rotor drives the drying drum at a speed of 4000 rpm, causing the load to adhere to the inner wall of the drying drum and rotate with it. The second speed is a lower speed than the first speed. In a specific embodiment, the second speed is 2700 rpm.

[0139] S340: Obtain the real-time moisture content of the load to be dried, and determine whether the real-time moisture content is less than the determined moisture content; if so, execute S350; if not, continue to execute S330.

[0140] S350: Control the compressor in the heat pump device to stop, control the first rotor to drive the drying drum to continue rotating at the fifth speed for a set time, and control the second rotor to continue rotating the drying drum at the second speed for a set time.

[0141] In a specific implementation, the set time can be set to about 1 minute. After the set time is reached, the controller controls the first rotor and the second rotor to stop rotating, and the wall drying program of the clothes processing device is completed. At this time, a prompt message can be generated and output.

[0142] In addition to providing the aforementioned control method for a laundry processing apparatus, the present disclosure also provides a control device for a laundry processing apparatus. The control device for a laundry processing apparatus provided by the present disclosure includes a control unit.

[0143] In response to the target drying program being triggered, the control unit controls the first rotor to drive the drying drum to rotate continuously at a first speed, and at the same time controls the second rotor to drive the fan to rotate at a second speed; wherein: the first rotor makes the load to be dried stationary relative to the inner wall of the drying drum; the second speed is less than the first speed.

[0144] In some embodiments, before controlling the first rotor to drive the drying drum to rotate continuously at the first speed, the control unit controls the second rotor to drive the fan to rotate at a third speed, controls the heat pump device to start heating, periodically obtains a detected temperature generated by a target temperature sensor, and determines whether the temperature state of the clothes processing device reaches a set temperature based on the detected temperature; wherein the third speed is greater than the first speed;

[0145] The control unit controls the first rotor to drive the drying drum to rotate continuously at a first speed, including: determining that the temperature state of the clothes processing device reaches a set temperature, and controlling the first rotor to drive the drying drum to rotate continuously at the first speed.

[0146] In some embodiments, the control unit periodically obtains the detection temperature generated by the temperature sensor located at the exhaust outlet of the compressor in the heat pump device; when the detection temperature is greater than the set exhaust temperature, the control unit determines that the temperature state of the clothing processing equipment reaches the set temperature.

[0147] In some embodiments, while controlling the second rotor to drive the fan to rotate at a third speed, the control unit controls the first rotor to control the rotation of the drying drum according to a preset rotation-stop ratio, a preset rotation-stop cycle and a fourth speed; the fourth speed is less than the first speed.

[0148] In some embodiments, while controlling the first rotor to drive the drying drum to rotate continuously at a first speed, the control unit obtains the real-time moisture content of the load to be dried; determines that the real-time moisture content is less than the judged dry moisture content, and controls the first rotor to drive the drying drum to continue rotating at a fifth speed for a set period of time; the fifth speed is less than the first speed.

[0149] In some embodiments, during the process of controlling the first rotor to drive the drying drum to continue rotating at the fifth speed for a set time, the control unit controls the second rotor to continue rotating the drying drum at the second speed for a set time.

[0150] In some embodiments, the control unit determines that the real-time moisture content is less than the determined moisture content, and controls the compressor in the heat pump device to stop.

[0151] In some embodiments, the control unit controls the first rotor to drive the drying drum to rotate according to a first setting parameter to obtain a first operating parameter of the first rotor; controls the second rotor to drive the fan impeller to rotate according to a second setting parameter to obtain a second operating parameter of the second rotor; and determines the real-time moisture content of the load to be dried based on the first operating parameter and the second operating parameter.

[0152] In some embodiments, the control unit determines the estimated weight of the load to be dried based on the first operating parameter, and determines the estimated volume of the load to be dried based on the second operating parameter; and determines the real-time moisture content of the load to be dried based on the estimated weight, the estimated volume and the dry density of the load to be dried.

[0153] In some embodiments, the control unit obtains moisture content detection data generated by the contact moisture content detection sensor, and determines the real-time moisture content of the load to be dried based on the moisture content detection data.

[0154] In addition to providing the aforementioned control method and control device for a laundry processing device, embodiments of the present disclosure further provide a laundry processing device. The laundry processing device includes a controller and the various actuators described above. The controller can execute the aforementioned control method for a laundry processing device to control the aforementioned actuators, thereby achieving rapid wall-mounted drying of the load to be dried.

[0155] The present disclosure also provides a storage medium storing a program or instruction that causes a computer to execute any of the laundry processing device control methods provided in the present disclosure. When executed by a computer controller, the computer-executable instructions can also be used to execute any of the laundry processing device control methods provided in the present disclosure to achieve the corresponding beneficial effects.

[0156] Through the above description of the implementation methods, those skilled in the art can clearly understand that the embodiments of the present disclosure can be implemented with the help of software and necessary general-purpose hardware, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the embodiments of the present disclosure is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer's floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods of each embodiment of the present disclosure.

[0157] The above are merely specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not limited to these embodiments, but is to be construed in the broadest manner consistent with the principles and novel features disclosed herein. Industrial Applicability

[0158] The present disclosure provides a control method for a clothing processing device, comprising a drying drum, a fan, a drive motor, and a heat pump device, wherein the drive motor comprises a first rotor and a second rotor; the first rotor drives the drying drum to rotate, and the second rotor drives the fan to rotate; the method comprising: in response to a target drying program being triggered, controlling the first rotor to continuously rotate the drying drum at a first speed, while simultaneously controlling the second rotor to rotate the fan at a second speed; wherein: the first rotor causes a load to be dried to be stationary relative to an inner wall of the drying drum; and the second speed is less than the first speed. Thus, by controlling the first rotor to drive the drying drum to rotate at the first speed, the load to be dried is rotated against the inner wall of the drying drum, thereby preventing excessive wear of the load to be dried relative to the drying drum and the drying drum itself. Simultaneously, controlling the second rotor, independent of the first rotor, to drive the fan to rotate at a second speed less than the first speed can prevent excessive drying airflow velocity, thereby preventing condensed water from being blown into the air duct or the drying drum.

Claims

1. A method for controlling a clothes processing device, characterized in that: The laundry processing device includes a drying drum, a fan, a driving motor, and a heat pump device, wherein the driving motor includes a first rotor and a second rotor; the first rotor drives the drying drum to rotate, and the second rotor drives the fan to rotate; the method includes: In response to a target drying program being triggered, controlling the first rotor to drive the drying drum to rotate continuously at a first speed, and controlling the second rotor to drive the fan to rotate at a second speed; Wherein: the first rotor makes the load to be dried stationary relative to the inner wall of the drying drum; the second rotation speed is lower than the first rotation speed.

2. The method according to claim 1, characterized in that Before controlling the second rotor to drive the fan to rotate at the second speed, the method further includes: controlling the second rotor to drive the fan to rotate at a third speed, and controlling the heat pump device to start heating; wherein the third speed is greater than the first speed; A detected temperature generated by a target temperature sensor is periodically acquired, and it is determined whether a temperature state of the laundry treatment device reaches a set temperature based on the detected temperature.

3. The method according to claim 2, characterized in that The step of controlling the first rotor to drive the drying drum to rotate continuously at a first speed includes: It is determined that the temperature of the clothes processing device reaches the set temperature, and the first rotor is controlled to drive the drying drum to rotate continuously at the first speed.

4. The method according to claim 2, characterized in that The periodically acquiring the detected temperature generated by the target temperature sensor includes: The detected temperature generated by temperature detection by a temperature sensor located at the exhaust outlet of the compressor in the heat pump device is periodically obtained.

5. The method according to claim 2, characterized in that In the process of controlling the second rotor to drive the fan to rotate at the third speed, the method further includes: The first rotor is controlled to rotate the drying drum according to a preset rotation-stop ratio, a preset rotation-stop cycle and a fourth rotation speed; the fourth rotation speed is less than the first rotation speed.

6. The method according to any one of claims 1 to 5, characterized in that In the process of controlling the first rotor to drive the drying drum to rotate continuously at the first speed, the method further includes: Get the real-time moisture content of the load to be dried; It is determined that the real-time moisture content is less than the determined dry moisture content, and the first rotor is controlled to drive the drying drum to continue rotating at a fifth speed for a set time period; the fifth speed is less than the first speed.

7. The method according to claim 6, characterized in that During the process of controlling the first rotor to drive the drying drum to continue rotating at the fifth speed for a set time period, the method further includes: The second rotor is controlled to continue to rotate the drying drum at the second speed for the set time period.

8. The method according to claim 6, characterized in that Also includes: It is determined that the real-time moisture content is less than the determined moisture content, and the compressor in the heat pump device is controlled to stop.

9. The method according to claim 6, characterized in that The step of obtaining the real-time moisture content of the load to be dried includes: controlling the first rotor to drive the drying drum to rotate according to a first set parameter, and obtaining a first operating parameter of the first rotor; controlling the second rotor to drive the fan impeller to rotate according to a second set parameter, and obtaining a second operating parameter of the second rotor; The real-time moisture content of the load to be dried is determined according to the first operating parameter and the second operating parameter.

10. The method according to claim 9, characterized in that The determining the real-time moisture content of the load to be dried according to the first operating parameter and the second operating parameter includes: determining an estimated weight of the load to be dried based on the first operating parameter, and determining an estimated volume of the load to be dried based on the second operating parameter; The real-time moisture content of the load to be dried is determined according to the estimated weight, the estimated volume and the dry density of the load to be dried.

11. A control device for a clothes processing device, characterized in that: The laundry processing device includes a drying drum, a fan, a driving motor and a heat pump device, wherein the driving motor includes a first rotor and a second rotor; the first rotor drives the drying drum to rotate, and the second rotor drives the fan to rotate; the device includes: a control unit, configured to, in response to a target drying program being triggered, control the first rotor to drive the drying drum to continuously rotate at a first speed, and simultaneously control the second rotor to drive the fan to rotate at a second speed; Wherein: the first rotor makes the load to be dried stationary relative to the inner wall of the drying drum; the second rotation speed is lower than the first rotation speed.

12. A clothes processing device, characterized in that: It includes a controller and an actuator; wherein the actuator includes a drying drum, a fan, a drive motor and a heat pump device, and the drive motor includes a first rotor and a second rotor; the first rotor drives the drying drum to rotate, and the second rotor drives the fan to rotate; the controller controls the actuator according to the control method of the clothing processing equipment according to any one of claims 1 to 10.

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