Control method and apparatus for laundry treatment device, and laundry treatment device

Abstract

A control method and apparatus for a laundry treatment device, and a laundry treatment device. The laundry treatment device comprises a drying drum (5100), a fan (5200), a driving electric motor (100) and a heat pump apparatus, wherein the driving electric motor (100) comprises a first rotor (1100) and a second rotor (1200), and the first rotor (1100) is used for driving the drying drum (5100) to rotate, and the second rotor (1200) is used for driving the fan (5200) to rotate. The control method for a laundry treatment device comprises: in response to a target drying program being triggered, controlling a first rotor (1100) to drive a drying drum (5100) to alternately rotate clockwise and counterclockwise, and controlling a second rotor (1200) to drive a fan (5200) to continuously rotate clockwise. Compared with the solution for performing control using a conventional single electric motor, the control method and apparatus and the laundry treatment device can avoid excessive entanglement of loads that are required to be dried without reducing a drying airflow speed, thereby ensuring the drying efficiency for the loads that are required to be dried.

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 202410379609.8 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] When drying fabrics in a laundry processing device, if the drying drum is controlled to rotate unidirectionally for an extended period, the continuous circumferential force can cause the load to be dried within the drying drum to assume a long, strip-like shape extending along the circumference of the drying drum. Simultaneously, the lateral force generated by the drum's reinforcing bars causes the long, strip-like load to become entangled with each other and themselves. This entanglement prevents the load from being fully spread within the drying drum. This inability to fully spread reduces the specific surface area for heat exchange between the load and the drying airflow, significantly reducing the drying efficiency of the laundry processing device.

[0004] To avoid the aforementioned problems, the clothing processing devices in the related art control the drying drum to alternately rotate forward and reverse, and the opposing forces generated by the forward and reverse rotations are alternately applied to the load to be dried, thereby avoiding excessive entanglement between the loads to be dried. However, since the clothing processing devices in the related art use a single motor to drive the drying drum and the fan to rotate, while realizing the alternating forward and reverse rotation of the drying drum, the fan will also alternately rotate forward and reverse. The fans of existing clothing processing devices are all centrifugal fans. Due to the centrifugal fan structure and volute structure, when they rotate in the reverse direction (reverse is defined here as the direction in which the fan generates a smaller airflow when rotating in both directions), the fan cannot rotate the airflow at a high speed, resulting in a decrease in the heat exchange efficiency between the load to be dried and the drying airflow during the reverse rotation process. In addition, because the flow rate of the drying airflow decreases, the heat dissipation efficiency of the heating device in the clothing processing device is seriously reduced, and it will quickly heat up to the threshold temperature and activate overheating protection.

[0005] Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] The technical problem to be solved by the present disclosure is to solve the problem that the clothing processing equipment in the related art controls the drying drum to alternately perform forward and reverse rotation, and the opposite forces generated by the forward and reverse rotation are alternately applied to the load to be dried, thereby avoiding excessive entanglement between the loads to be dried. However, since the clothing processing equipment in the related art uses a single motor to drive the drying drum and the fan to rotate, while realizing the alternating forward and reverse rotation of the drying drum, the fan will also alternate forward and reverse rotation. The fans of existing clothing processing equipment are all centrifugal fans. Due to the centrifugal fan structure and volute structure, when the fan rotates in the reverse direction (reverse is defined here as the direction in which the fan generates a smaller airflow when rotating in both directions), the fan cannot rotate the airflow at a high speed, resulting in a decrease in the heat exchange efficiency between the load to be dried and the drying airflow during the reverse rotation process. In addition, because the flow rate of the drying airflow decreases, the heat dissipation efficiency of the heating device in the clothing processing equipment is seriously reduced, and it will quickly heat up to the threshold temperature and activate the overheating protection.

[0008] (2) Technical solution

[0009] In order to solve the above technical problems, the present disclosure provides a control method, device and clothing processing equipment for a clothing processing device, which can avoid excessive entanglement of the load to be dried while always maintaining the fan rotation speed, thereby ensuring the heat exchange rate between the drying airflow and the load to be dried.

[0010] In a first aspect, an embodiment of the present disclosure provides a control method for a laundry processing device, wherein the laundry processing device includes a drying drum, a fan, a drive motor, and a heat pump device, wherein the drive motor includes a first rotor and a second rotor; the first rotor is used to drive the drying drum to rotate, and the second rotor is used to drive the fan to rotate; the control method includes:

[0011] In response to a target drying program being triggered, the first rotor is controlled to drive the drying drum to rotate forward and reverse alternately, and the second rotor is controlled to drive the fan to rotate forward continuously.

[0012] In some optional implementations, controlling the first rotor to drive the drying drum to rotate forward and reverse alternately includes: controlling the first rotor to drive the drying drum to rotate forward and reverse alternately according to a first forward and reverse time ratio;

[0013] The first forward and reverse time ratio is between 1:2 and 2:1.

[0014] Optionally, the first forward and reverse time ratio is 1:1.

[0015] Optionally, the method further comprises: determining a first forward and reverse rotation cycle of the drying drum;

[0016] The step of controlling the first rotor to drive the drying drum to alternately rotate forward and reverse according to a first forward and reverse time ratio comprises:

[0017] The first rotor is controlled to drive the drying drum to rotate forward and reverse alternately according to the first forward and reverse time ratio and the first forward and reverse cycle.

[0018] Optionally, determining the first forward and reverse rotation cycle of the drying drum includes: determining the first forward and reverse rotation cycle according to the type of the load to be dried, or using a rotation cycle input by a user as the first forward and reverse rotation cycle.

[0019] Optionally, it also includes: obtaining the real-time moisture content of the load to be dried;

[0020] It is determined that the real-time moisture content is less than the dry moisture content, and the first rotor and the second rotor are controlled to stop rotating.

[0021] Optionally, obtaining the real-time moisture content of the load to be dried includes:

[0022] 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;

[0023] 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;

[0024] The real-time moisture content of the load to be dried is determined according to the first operating parameter and the second operating parameter.

[0025] Optionally, determining the real-time moisture content of the load to be dried according to the first operating parameter and the second operating parameter includes:

[0026] 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;

[0027] 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.

[0028] Optionally, controlling the first rotor and the second rotor to stop rotation includes:

[0029] After controlling the first rotor to rotate at a second speed and a second forward and reverse cycle for a set time, controlling the first rotor to stop; and controlling the second rotor to stop.

[0030] In a second aspect, the present disclosure further provides a control device for a laundry processing device, comprising:

[0031] An embodiment of the present disclosure 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 being used to drive the drying drum to rotate, and the second rotor being used to drive the fan to rotate; the control device comprising:

[0032] The control unit is configured to control the first rotor to drive the drying drum to rotate forward and reverse alternately, and control the second rotor to drive the fan to rotate forward continuously in response to a target drying program being triggered.

[0033] 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.

[0034] In a fourth aspect, an embodiment of the present disclosure provides a clothing processing device, comprising a controller and an actuator; wherein the actuator comprises a drying drum driven by a first motor and a fan driven by a second motor; and the controller controls the actuator according to the control method of the clothing processing device as described in the first aspect.

[0035] (3) Beneficial effects

[0036] The above technical solution provided by the embodiments of the present disclosure has the following advantages compared with the prior art:

[0037] By adopting the solution of the embodiment of the present disclosure, by controlling the first rotor and the second rotor to rotate independently, the first rotor is used to drive the drying drum to rotate forward and reverse alternately to avoid excessive entanglement of the load to be dried, while the fan rotation speed can always be maintained, thereby ensuring the heat exchange rate between the drying airflow and the load to be dried.

[0038] 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

[0039] 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.

[0040] 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.

[0041] FIG1 is a schematic structural diagram of some components of a clothing processing device in some applications of the present disclosure;

[0042] FIG2 is a schematic diagram of the structure of a dual-rotor motor and part of the output transmission mechanism;

[0043] FIG3 is an exploded schematic diagram of the structure in FIG2 ;

[0044] FIG4 is a flow chart of a control method for a clothes treating apparatus according to some embodiments of the present disclosure;

[0045] FIG5 is a flow chart of a control method for a clothes processing device provided in yet another embodiment of the present disclosure. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] It should be noted that the modifications of "one" and "plurality" 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".

[0049] In order to solve the problem that the existing clothing processing equipment uses a single motor to drive the drying drum and fan, it is necessary to periodically control the forward and reverse rotation of the single motor to avoid over-entanglement of the drying load, but this will reduce the fan speed, thereby reducing the flow rate of the drying air flow per unit time and reducing the drying efficiency, the embodiment of the present disclosure provides a new control method for clothing processing equipment.

[0050] 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.

[0051] Similar to the overall structure of conventional laundry processing devices, the laundry processing device provided in the embodiments of the present disclosure includes a heating device, a drying drum, and a fan. An airflow channel is formed between the heating device and the drying drum. The fan is disposed within the airflow channel and, when rotated, drives air within the airflow channel to form a flowing airflow.

[0052] Different from the prior art, the laundry processing device in the embodiment of the present disclosure adopts two different power sources to drive the drying drum and the fan to rotate respectively. In other words, the rotation of the drying drum and the fan are independent.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] A first pulley 4120 is mounted on the second transmission shaft 4100. The first pulley 4120 drives the second pulley 4200 via a first transmission belt 4400. The second pulley 4200 then drives the drying drum 5100 via a second transmission belt 4300. When the first rotor 1100 rotates, it drives the drying drum 5100 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.

[0059] 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.

[0060] 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 .

[0061] 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.

[0062] 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.

[0063] 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.

[0064] The aforementioned dual-rotor motor is used to drive the drying drum 5100 and the fan 5200 to rotate respectively through the first rotor 1100 and the second rotor 1200 on both sides, utilizing the compact structure of the dual-rotor motor and reducing the limited space occupied by the clothing processing equipment.

[0065] 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.

[0066] S110: In response to the target drying program being triggered, controlling the first rotor to drive the drying drum to rotate forward and reverse alternately, and controlling the second rotor to drive the fan to rotate forward continuously.

[0067] In the embodiment of the present disclosure, the clothes processing device is provided with a plurality of programs for selecting the drying type for the load to be dried.

[0068] 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.

[0069] 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.

[0070] The target drying program in the disclosed embodiment is the aforementioned large-piece drying program. After the user selects the large-piece 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 large-piece drying program. Specifically, the drying operation on the load to be dried according to the large-piece drying program includes controlling the movement of the drying drum, the fan, and the heating device.

[0071] 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 controls the rotation of the first rotor. In the disclosed embodiment, the laundry processing device controls the first rotor to rotate alternately forward and reverse. This alternating forward and reverse rotation of the first rotor causes the drying drum to also rotate alternately forward and reverse, thereby causing the load to tumble alternately, and this alternating rotation prevents excessive entanglement of the load.

[0072] In the disclosed embodiment, as previously analyzed, the second rotor is the power source for driving 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 a specific implementation, the fan is a centrifugal fan. To generate a high airflow velocity 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.

[0073] 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.

[0074] It is precisely because the drying drum and fan of the clothing processing device in the embodiment of the present disclosure are driven by different driving motors, by controlling the first rotor and the second rotor to rotate independently, the first rotor is used to drive the drying drum to rotate alternately forward and reverse to avoid excessive entanglement of the load to be dried, and the fan rotation speed can also be maintained at all times, thereby ensuring the heat exchange rate between the drying airflow and the load to be dried.

[0075] In the embodiment of the present disclosure, in order to avoid excessive winding of the load to be dried as much as possible. Controlling the first rotor to drive the drying drum alternately forward and reverse in the aforementioned S110 is specifically controlling the first rotor to drive the drying drum alternately forward and reverse according to the first forward and reverse time ratio. The first forward and reverse time ratio is a ratio that characterizes the forward rotation time and the reverse time of the drying drum. In a specific implementation, the first forward and reverse time ratio is set between 1:2 and 2:1. More preferably, the first forward and reverse time ratio is set to 1:1, that is, the first rotor rotates forward for a set time and then reverses for a set time.

[0076] In the disclosed embodiment, before the laundry processing device drives the drying drum to alternately rotate forward and reverse, it is necessary to determine a first forward and reverse rotation cycle. The first forward and reverse rotation cycle is the time required for the first rotor to complete one complete forward and reverse rotation. After determining the first forward and reverse rotation cycle, the laundry processing device controls the first rotor to drive the drying drum alternately rotate forward and reverse according to the first forward and reverse rotation time ratio and the first forward and reverse rotation cycle.

[0077] In actual applications, the time required to cause excessive winding of the load to be dried varies depending on the type of load to be dried, so it is necessary to reasonably set the forward and reverse rotation time of the drying drum. In some specific implementations, the drying drum can determine the first forward and reverse rotation cycle based on the type of load to be dried and the aforementioned forward and reverse time ratio. The type of load to be dried can be selected by the user when the clothing processing device starts the drying operation, or it can be detected by the clothing processing device using, for example, a camera. In other specific implementations, the clothing processing device can also use the rotation cycle input by the user as the first forward and reverse rotation cycle.

[0078] In practical applications, when the first rotor drives the drying drum to rotate, it must operate at a specific speed, thereby ensuring that the load to be dried within the drying drum can continuously rotate. To achieve this, in the disclosed embodiment, the first rotor drives the drying drum at a first speed. Taking into account the other aforementioned conditions, the first rotor drives the drying drum to alternately rotate forward and reverse at the first speed, with a first forward / reverse time ratio, and a first forward / reverse cycle.

[0079] In the disclosed embodiment, the second rotor drives the fan at a second speed. The second speed is greater than the first speed. By setting the second speed greater than the first speed, the fan can be operated at a high speed, thereby generating a larger drying airflow and accelerating the drying of the load.

[0080] As drying progresses, the moisture content of the load to be dried gradually decreases until the dry condition is met. In order to stop the drying operation on the load to be dried after the load to be dried reaches the dry condition, in the embodiment of the present disclosure, during the execution of the aforementioned S110, the following S120-S130 may also be executed.

[0081] S120: 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 S130; if not, continue to execute S110.

[0082] 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.

[0083] In some other embodiments, the clothes treating apparatus may determine the real-time moisture content of the load to be dried according to the following steps S121 - S123 .

[0084] S121: 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.

[0085] 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.

[0086] S122: Control the second rotor to drive the fan impeller to rotate according to the second set parameter, and obtain a second operating parameter of the second rotor.

[0087] 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.

[0088] S123: Determine the real-time moisture content of the load to be dried according to the first operating parameter and the second operating parameter.

[0089] 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.

[0090] In some other embodiments, the following S1231 - S1233 may be used to determine the real-time moisture content of the load to be dried.

[0091] S1231: Determine the initial weight of the load to be dried according to the first operating parameter.

[0092] 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.

[0093] S1232: Determine an estimated volume of the load to be dried based on the second operating parameter.

[0094] 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.

[0095] S1233: 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.

[0096] 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.

[0097] After determining the dry density of the load to be dried, the dry weight of the load to be dried can be calculated based on the dry density and estimated volume. In some embodiments, the dry volume of the load to be dried increases relative to the wet volume, with the percentage of increase determined by 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 proportionality factor. The initial moisture content of the load to be dried can be determined by subtracting the dry weight from the initial weight. The real-time moisture content of the load to be dried can be determined by dividing the initial moisture content by the estimated volume.

[0098] S130: Control the first rotor and the second rotor to stop rotating.

[0099] If it is determined that the real-time moisture content of the load to be dried is less than the determined drying moisture content, the clothes processing device may be controlled to stop the drying operation on the load to be dried.

[0100] In the disclosed embodiment, stopping the drying operation of the load to be dried includes controlling the first rotor and the second rotor to stop. Specifically, after determining that the real-time moisture content is less than the determined dry moisture content, the second rotor is still controlled to operate at the second speed for a preset time, and the first rotor is controlled to operate at a third speed, a first forward / reverse time ratio, and a second forward / reverse cycle for a preset time, and then the first rotor and the second rotor are controlled to stop. The third speed is greater than the first speed, and the second forward / reverse cycle is less than the first forward / reverse cycle.

[0101] In actual applications, because the heating device still has a significant amount of accumulated heat, in order to fully utilize the accumulated heat of the heating device, in the disclosed embodiment, the first and second rotors can be controlled to continue operating for a set period of time before being stopped. This allows the first and second rotors to transfer heat to the load to be dried by utilizing sufficient heat conduction during operation. Furthermore, if the preset time period is set to a longer value, controlling the first and second rotors to continue operating for the set period of time can also cool the load to be dried.

[0102] In addition, by controlling the first rotor to rotate according to the third speed, the second forward and reverse rotation period and the first forward and reverse rotation time ratio, a shaking operation of the load to be dried can also be achieved.

[0103] To more clearly understand the control method for a laundry processing device provided by an embodiment of the present disclosure in chronological order, the following further analyzes the control method for a laundry processing device using another embodiment that fully implements drying of a load requiring drying. FIG5 is a flow chart of the control method for a laundry processing device provided by another embodiment of the present disclosure. As shown in FIG5 , the control method for a laundry processing device provided by another embodiment includes S310-S310.

[0104] S310: In response to the large piece drying program being triggered, the first rotor is controlled to drive the drying drum to rotate according to the first speed, the first forward and reverse cycle and the first forward and reverse time ratio, the second rotor is controlled to drive the fan to rotate according to the second speed, and the heating device is controlled to heat.

[0105] In one specific implementation, the first rotational speed can be set to 2700 rpm, the first forward-reverse rotation time ratio can be set to 1:1, the first forward-reverse rotation period can be set to 4 minutes, and the rotational speed of the second motor rotor can be set to 3200 rpm. In addition, if the heating device is a heat pump heating device, the frequency of the compressor in the heat pump heating device can be set to 63 Hz.

[0106] S320: Obtain the real-time moisture content of the load to be dried; determine whether the real-time moisture content is less than the determined moisture content; if so, execute S330; if not, execute S310.

[0107] S330: Determine that the real-time moisture content is less than the judged dry moisture content, control the heating device to stop heating, control the first rotor to drive the drying drum to rotate according to the third speed, the second forward and reverse cycle and the first forward and reverse time ratio, and continue to control the second rotor to drive the fan to rotate according to the second speed, and start timing.

[0108] In the embodiment of the present disclosure, the third speed can be set to 2900 rpm, and the first forward and reverse time ratio can be set to 1:1. By controlling the first rotor to continue rotating according to the third speed, the second forward and reverse cycle, and the first forward and reverse time ratio, a shaking operation of the load to be dried can be achieved.

[0109] S340: Determine that the timing duration reaches a preset duration, and control the first rotor and the second rotor to stop rotating.

[0110] In the embodiment of the present disclosure, the preset duration can be set to 2 minutes.

[0111] In addition to providing the aforementioned control method for a laundry processing device, the present disclosure also provides a control device for a laundry processing device. The control device for a laundry processing device provided by the present disclosure includes a control unit.

[0112] The control unit is used for controlling the first rotor to drive the drying drum to rotate forward and reverse alternately, and controlling the second rotor to drive the fan to rotate forward continuously in response to the target drying program being triggered.

[0113] In some embodiments, the control unit controls the first rotor to drive the drying drum to alternately rotate forward and reverse according to a first forward and reverse time ratio; wherein the first forward and reverse time ratio is between 1:2 and 2:1.

[0114] In some embodiments, the first forward-reverse time ratio is 1:1.

[0115] In some embodiments, the control unit determines a first forward and reverse rotation cycle of the drying drum, and controls the first rotor to drive the drying drum to rotate forward and reverse alternately according to a first forward and reverse rotation time ratio and the first forward and reverse rotation cycle.

[0116] In some embodiments, the control unit determines the first forward / reverse rotation cycle according to the type of the load to be dried, or uses the rotation cycle input by the user as the first forward / reverse rotation cycle.

[0117] In some embodiments, the control unit controls the first rotor to drive the drying drum to rotate forward and reverse alternately at a first speed, and controls the second rotor to drive the fan to rotate forward continuously at a second speed; wherein the second speed is greater than the first speed.

[0118] In some embodiments, the control unit obtains the real-time moisture content of the load to be dried, and controls the first rotor and the second rotor to stop rotating if it is determined that the real-time moisture content is less than the determined moisture content.

[0119] In some embodiments, the control unit controls the first rotor to drive the drying drum to rotate according to the first setting parameters to obtain the first operating parameters of the first rotor; controls the second rotor to drive the fan impeller to rotate according to the second setting parameters to obtain the second operating parameters of the second rotor; and determines the real-time moisture content of the load to be dried based on the first operating parameters and the second operating parameters.

[0120] 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 then 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.

[0121] 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.

[0122] 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.

[0123] 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

[0124] The present disclosure provides a control method for a laundry 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 is configured to drive the drying drum to rotate, and the second rotor is configured to drive the fan to rotate; and the control method comprises: in response to a target drying program being triggered, controlling the first rotor to drive the drying drum to alternately rotate forward and reverse, and controlling the second rotor to drive the fan to rotate continuously forward. Thus, by independently controlling the first and second rotors to rotate, the first rotor can be used to drive the drying drum to alternately rotate forward and reverse, thereby preventing excessive entanglement of a load to be dried, while also maintaining the fan rotation rate, thereby ensuring a high heat exchange rate between the drying airflow and the load to be dried.

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 is used to drive the drying drum to rotate, and the second rotor is used to drive the fan to rotate; the control method includes: In response to a target drying program being triggered, the first rotor is controlled to drive the drying drum to rotate forward and reverse alternately, and the second rotor is controlled to drive the fan to rotate forward continuously.

2. The control method according to claim 1, characterized in that: The controlling the first rotor to drive the drying drum to alternately rotate forward and reversely includes: controlling the first rotor to drive the drying drum to alternately rotate forward and reverse according to a first forward and reverse time ratio; The first forward and reverse time ratio is between 1:2 and 2:

1.

3. The control method according to claim 2, characterized in that: The first forward and reverse time ratio is 1:

1.

4. The control method according to claim 2, characterized in that: The method further comprises: determining a first forward and reverse rotation cycle of the drying drum; The step of controlling the first rotor to drive the drying drum to alternately rotate forward and reverse according to a first forward and reverse time ratio comprises: The first rotor is controlled to drive the drying drum to rotate forward and reverse alternately according to the first forward and reverse time ratio and the first forward and reverse cycle.

5. The control method according to claim 4, characterized in that: Determining the first forward and reverse rotation cycle of the drying drum includes: The first forward and reverse rotation cycle is determined according to the type of the load to be dried, or the rotation cycle input by the user is used as the first forward and reverse rotation cycle.

6. The control method according to claim 1, characterized in that: The controlling the first rotor to drive the drying drum to rotate alternately forward and reverse, and controlling the second rotor to drive the fan to rotate continuously forward, comprises: Controlling the first rotor to drive the drying drum to rotate alternately forward and reversely at a first speed, and controlling the second rotor to drive the fan to rotate continuously forward at a second speed; Wherein, the second speed is greater than the first speed.

7. The control method according to any one of claims 1 to 6, characterized in that: Also 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 dry moisture content, and the first rotor and the second rotor are controlled to stop rotating.

8. The control method according to claim 7, 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.

9. The control method according to claim 8, 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.

10. 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 is used to drive the drying drum to rotate, and the second rotor is used to drive the fan to rotate; the control device includes: The control unit is configured to control the first rotor to drive the drying drum to rotate forward and reverse alternately, and control the second rotor to drive the fan to rotate forward continuously in response to a target drying program being triggered.

11. A clothes processing device, characterized in that: It comprises a controller and an actuator; wherein the actuator comprises a drying drum driven by a first motor and a fan driven by a second motor; the controller controls the actuator according to the control method of the clothing processing device according to any one of claims 1 to 9.

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