A drying control method of a pulsator washing machine and a pulsator washing machine

Abstract

The application provides a drying control method of a pulsator washing machine and the pulsator washing machine, and belongs to the technical field of fabric treatment equipment. By arranging a switchable clutch assembly in the same set of driving system, the pulsator chassis is selectively put into or withdrawn from power transmission under the premise that the inner drum continuously rotates, so that the two motion modes of "only inner drum rotation" and "inner drum + pulsator chassis synchronous rotation" can be instantaneously converted in the drying process without an additional power source. In combination with the drying air duct which is thermally coupled with the clutch assembly and / or the driving motor, the above mode switching directly introduces the waste heat of the heating component into the drying airflow, reduces the dependence on external energy, and on the other hand, utilizes the "active-stopping" change of the pulsator chassis to periodically loosen and disturb the clothes in the inner drum, breaks the clothes clumps and prevents the accumulation, so that the hot air can continuously and uniformly penetrate the clothes, and the synergistic effect of energy saving, uniform drying and wrinkle prevention is realized.

Description

Technical Field

[0001] This application relates to the field of fabric processing equipment technology, and more specifically, to a drying control method for a pulsator washing machine and the pulsator washing machine itself. Background Technology

[0002] Most current top-loading washing machines use electric heating (such as PTC heaters) to dry clothes. Hot air is sent into the washing drum by air and a fan, causing the moisture in the clothes to evaporate and be discharged with the moisture.

[0003] This solution relies entirely on PTC heating of the air, which consumes a significant amount of electricity. Furthermore, because the washing drum of a top-loading washing machine has a vertical structure, clothes tend to pile up at the bottom of the drum or become tangled during the drying process due to gravity. This prevents hot air from penetrating the clothes evenly, resulting in uneven drying, localized overheating, or incomplete drying. Summary of the Invention

[0004] This application provides a drying control method for a pulsator washing machine and the pulsator washing machine itself. By incorporating a switchable clutch assembly within the same drive system, the pulsator chassis can be selectively engaged or disengaged from power transmission while the inner drum continues to rotate. This allows for instantaneous switching between two motion modes during the drying process: "inner drum only rotation" and "inner drum + pulsator chassis synchronous rotation," without the need for an additional power source. Combined with a drying air duct thermally coupled to the clutch assembly and / or drive motor, this mode switching directly introduces waste heat from heating components into the drying airflow, reducing dependence on external energy. Furthermore, the "active-stop" change of the pulsator chassis periodically loosens and agitates the clothes in the inner drum, breaking up clumps and preventing accumulation. This allows hot air to penetrate the clothes continuously and evenly, achieving a synergistic effect of energy saving, uniform drying, and wrinkle prevention. Specifically:

[0005] The first aspect of this application provides a drying control method for a pulsator washing machine, the washing machine including: an inner drum, a pulsator chassis, a drive motor, and a clutch assembly.

[0006] The clutch assembly has:

[0007] First operating state: The output of the drive motor is transmitted only to the inner cylinder, and

[0008] Second operating state: The output of the drive motor is simultaneously transmitted to the inner cylinder and the impeller chassis;

[0009] By controlling the switching of the operating state of the clutch assembly, the rotation of the impeller chassis can be controlled by the drive motor.

[0010] The washing machine is also equipped with a drying air duct, a drying air duct thermal coupling clutch assembly and / or a drive motor, for receiving heat generated by at least one of them during operation;

[0011] Drying control methods include:

[0012] During the drying process, the operating status of the clutch assembly is dynamically adjusted according to the drying stage.

[0013] In the above technical solution, the drying stage includes a preheating stage, a main drying stage, and a residual heat stage in sequence. The operating state of the clutch assembly is dynamically adjusted according to the drying stage, including:

[0014] During the preheating and main drying stages, the clutch assembly is controlled to maintain a first operating state for a first preset time period and to repeatedly switch between the first operating state and the second operating state for a second preset time period.

[0015] During the residual heat phase, the clutch assembly is controlled to remain in the first operating state only;

[0016] When the clutch assembly is in the second operating state, the impeller chassis and the inner cylinder rotate in opposite directions.

[0017] In the above technical solution, a heating element is provided inside the drying air duct;

[0018] The drying control method also includes: dynamically adjusting the operating status of the heating element according to the air outlet parameter values ​​of the drying air duct in the current drying stage;

[0019] The air outlet parameters include at least the inlet temperature and outlet temperature of the drying air duct.

[0020] In the above technical solution, the drying stage includes a preheating stage, a main drying stage, and a residual heat stage in sequence. The operating status of the heating element is dynamically adjusted based on the air outlet parameter values ​​of the drying air duct in the current drying stage, including:

[0021] The temperature value of the air inlet of the drying air duct is obtained during the preheating stage;

[0022] If the temperature value is higher than the preset temperature value, the heating element will be turned off;

[0023] Conversely, the heating element is controlled to operate at a lower initial operating power.

[0024] In the above technical solution, dynamically adjusting the operating status of the heating element based on the air outlet parameter values ​​of the drying air duct during the current drying stage also includes:

[0025] During the main drying stage, the heating element is turned on, and the temperature difference between the air outlet and air inlet of the drying air duct is obtained;

[0026] If the temperature difference is less than the first preset temperature difference value, the heating element will be turned off;

[0027] Conversely, the operating power of the heating element is dynamically adjusted according to the degree to which the temperature difference exceeds the first preset temperature difference value.

[0028] In the above technical solution, adjusting the operating power of the heating element according to the degree to which the temperature difference exceeds the first preset temperature difference includes:

[0029] If the first preset temperature difference value ≤ temperature difference value < the second preset temperature difference value, control the heating element to operate at the second operating power;

[0030] If the second preset temperature difference value ≤ temperature difference value < the third preset temperature difference value, control the heating element to operate at the third operating power;

[0031] If the third preset temperature difference value is less than or equal to the temperature difference value, the heating element is controlled to operate at the fourth operating power.

[0032] The first operating power < the second operating power < the third operating power < the fourth operating power.

[0033] In the above technical solution, the drying control method further includes:

[0034] After running for a preset time during the preheating stage, it enters the main baking stage;

[0035] and / or

[0036] When the temperature difference during the main baking stage is less than the first preset temperature difference, the residual heat stage begins.

[0037] and / or

[0038] The drying program will be turned off after running for a preset time during the residual heat stage.

[0039] The second aspect of this application provides a pulsator washing machine that employs the drying control method described above.

[0040] In the above technical solution, the washing machine includes:

[0041] The drying air duct is connected to the inner cylinder to form a drying air path;

[0042] The heating element, drive motor, and clutch assembly are provided. The heating element is disposed in the drying air duct, and at least one of the drive motor and clutch assembly is thermally coupled to the drying air duct for transferring the heat generated during operation to the drying air duct.

[0043] The fan is located in the drying duct and is used to drive the airflow in the drying duct.

[0044] In the above technical solution, the washing machine also includes a main drive shaft coaxially connected to the drive motor, and the clutch assembly includes a magnetic yoke fixed to the main drive shaft and an armature that can be axially attracted. The armature is configured to attract the magnetic yoke when the corresponding coil is energized to obtain torque.

[0045] The washing machine also includes:

[0046] The first and second transmission components are configured corresponding to the clutch assembly;

[0047] The first transmission component has its input end connected to the magnetic yoke drive and its output end connected to the inner drum of the washing machine. The second transmission component has its input end connected to the armature drive and its output end connected to the impeller chassis of the washing machine.

[0048] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0049] In this embodiment, a switchable clutch assembly is set within the same drive system, allowing the impeller chassis to be selectively engaged or disengaged from power transmission while the inner drum continues to rotate. This enables instantaneous switching between two motion modes—"inner drum rotation only" and "inner drum + impeller chassis synchronous rotation"—without requiring an additional power source during the drying process. Combined with the drying air duct thermally coupled to the clutch assembly and / or drive motor, the aforementioned mode switching directly introduces waste heat from the heating components into the drying airflow, reducing dependence on external energy. Furthermore, the "active-stop" change of the impeller chassis periodically loosens and agitates the bottom of the clothes in the inner drum, breaking up clumps and preventing accumulation. This allows hot air to penetrate the clothes continuously and evenly, achieving a synergistic effect of energy saving, uniform drying, and wrinkle prevention. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the drying air duct structure of the washing machine in an embodiment of this application;

[0051] Figure 2 This is a schematic diagram of the clutch assembly in an embodiment of this application;

[0052] Figure 3 This is a schematic diagram of the magnetic yoke's attraction surface structure in an embodiment of this application;

[0053] Figure 4 This is an exploded view of the washing machine in an embodiment of this application;

[0054] Figure 5 This is a schematic diagram of the combined structure of the washing machine in an embodiment of this application;

[0055] Figure 6 This is a cross-sectional view of the washing machine in an embodiment of this application;

[0056] Figure 7 This is a schematic diagram of the washing machine in the drying program according to an embodiment of this application.

[0057] in:

[0058] 10 - Main drive shaft;

[0059] 20-Clutch assembly; 201-Magnetic yoke; 2011-Magnetic unit; 202-Armature; 203-Coil;

[0060] 30 - First transmission assembly;

[0061] 40-Second transmission assembly; 401-Second belt; 402-Drive shaft; 403-Driving gear; 404-Driven gear disc;

[0062] 50 - Inner cylinder; 501 - Cylinder shaft;

[0063] 60 - Impeller chassis; 601 - Impeller shaft;

[0064] 70 - Heating element;

[0065] 80-Drying air duct;

[0066] 90 - Drive motor;

[0067] 100-fan;

[0068] 200 - Motor heat capture device;

[0069] 300-Clutch heat capture device. Detailed Implementation

[0070] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0071] Throughout the specification and claims, the following terms will have at least the meaning explicitly associated herein, unless the context otherwise requires. The meanings defined below are not intended to limit the terms, but are merely illustrative examples.

[0072] In the description of this invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments," as used herein, does not necessarily refer to the same embodiment when used multiple times, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or," unless the context clearly specifies otherwise. The term "based on" is not exclusive and allows for reliance on additional factors not described, unless the context clearly specifies otherwise. The word "exemplary" herein means "used as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of this invention is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed invention. The various embodiments provided in this invention should not be construed as limiting the scope of protection of this invention.

[0073] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0075] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0076] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] Addressing the three major pain points of existing pulsator washing machines—high energy consumption during drying, easy tangling and accumulation of clothes, and uneven hot air penetration—this application proposes a solution that integrates waste heat recovery with mechanical loosening. A dual-state electromagnetic clutch, capable of instantaneous switching, is installed on the same main drive shaft. Alternating between two transmission modes—"inner drum rotation only" and "inner drum-pulsator chassis reverse synchronous rotation"—periodically loosens and lifts clothes, causing them to fall and disperse at the bottom. Simultaneously, the clutch yoke, armature, and drive motor are directly thermally coupled to the drying air duct, ensuring that heat generated by the heat source is immediately carried away by the airflow, becoming the primary source of preheating and heat preservation. The controller dynamically schedules the clutch state and heating element power in three stages: "preheating-main drying-residual heat," forming a closed loop of "waste heat priority, differential heat supplementation, and heating stoppage upon drying." This achieves uniform drying with minimal active energy consumption without adding additional heat exchange components, effectively reducing tangling and wrinkles, and achieving a comprehensive goal of energy saving, high efficiency, and garment care.

[0078] Example

[0079] like Figures 1-7 As shown, the first aspect of this application provides a drying control method for a pulsator washing machine. The washing machine includes: an inner drum 50, a pulsator chassis 60, a drive motor 90, and a clutch assembly 20.

[0080] Clutch assembly 20 has:

[0081] First operating state: The output of the drive motor 90 is transmitted only to the inner cylinder 50, and

[0082] Second operating state: The output of the drive motor 90 is simultaneously transmitted to the inner cylinder 50 and the impeller chassis 60;

[0083] By controlling the switching of the operating state of the clutch assembly 20, the pulsator chassis 60 is controlled to rotate by the drive motor 90.

[0084] The washing machine is also equipped with a drying air duct 80, a thermal coupling clutch assembly 20 for the drying air duct 80 and / or a drive motor 90, for receiving heat generated during operation of at least one of them;

[0085] Drying control methods include:

[0086] During the drying process, the operating status of the clutch assembly 20 is dynamically adjusted according to the drying stage.

[0087] In this embodiment, a switchable clutch assembly 20 is set within the same drive system, allowing the impeller chassis 60 to be selectively engaged or disengaged from power transmission while the inner drum 50 continues to rotate. This enables instantaneous switching between two motion modes—"inner drum rotation only" and "inner drum + impeller chassis synchronous rotation"—without requiring an additional power source during the drying process. Combined with the drying air duct thermally coupled to the clutch assembly and / or drive motor, this mode switching directly introduces waste heat from the heating components into the drying airflow, reducing dependence on external energy. Furthermore, the "active-stop" change of the impeller chassis periodically loosens and agitates the bottom of the clothes in the inner drum, breaking up clumps and preventing accumulation. This allows hot air to penetrate the clothes continuously and evenly, achieving a synergistic effect of energy saving, uniform drying, and wrinkle prevention.

[0088] Furthermore, in some possible implementations, the drying stage includes, in sequence, a preheating stage, a main drying stage, and a residual heat stage. The operating state of the clutch assembly is dynamically adjusted according to the drying stage, including:

[0089] During the preheating and main drying stages, the clutch assembly 20 is controlled to maintain a first operating state for a first preset time period and to repeatedly switch between the first operating state and the second operating state for a second preset time period.

[0090] During the residual heat phase, the clutch assembly 20 is controlled to remain in the first operating state only;

[0091] When the clutch assembly 20 is in the second operating state, the impeller chassis 60 and the inner cylinder 50 rotate in opposite directions.

[0092] In this embodiment, during the preheating and main drying stages, the clutch assembly 20 maintains a first operating state for a first preset time period, causing the drive motor 90 to drive only the inner drum 50 to rotate continuously, while the impeller base 60 remains stationary or rotates freely. The clothes are fully lifted and fall under the influence of the inner drum wall, thus breaking up clumps. Subsequently, during a second preset time period, it repeatedly switches to a second operating state, causing the impeller base 60 to rotate actively in the opposite direction to the inner drum 50. This instantaneous reversal disperses the clothes accumulated at the bottom of the inner drum 50, preventing localized accumulation and enhancing hot air penetration. After entering the residual heat stage, the clutch assembly 20 continues to maintain the first operating state, the impeller chassis 60 stops rotating actively, and the inner drum 50 tumbles at a low speed alone. While using the residual heat recovered by the drying duct 80 to complete the final drying, it also reduces wrinkles in the clothes. Through the phased state switching, the waste heat of the drive motor 90 and the clutch assembly 20 is continuously introduced into the drying duct 80 to reduce additional energy consumption. At the same time, the "stationary-reverse" periodic change of the impeller chassis 60 achieves the continuous effects of loosening, spreading, and preventing wrinkles, thus achieving the synergistic technical effects of energy saving, uniform drying, and low wrinkles.

[0093] Furthermore, in some possible implementations, a heating element 70 is provided inside the drying air duct;

[0094] The drying control method also includes: dynamically adjusting the operating status of the heating element according to the air outlet parameter values ​​of the drying air duct 80 in the current drying stage;

[0095] The air outlet parameters include at least the inlet temperature and outlet temperature of the drying air duct.

[0096] In this embodiment, after installing a heating element 70 in the drying duct 80, the system can instantly calculate the temperature rise and heat surplus / deficit within the duct at any drying stage by acquiring the inlet and outlet temperatures of the same duct in real time. When there is sufficient waste heat, the heating element 70 is promptly reduced in power or shut off, prioritizing the use of the recovered heat generated by the drive motor and clutch assembly to avoid energy waste. When insufficient waste heat leads to insufficient temperature rise, the heating element 70 immediately replenishes heat to ensure that the drying airflow always has sufficient drying capacity. Thus, the heating element 70 no longer operates at a fixed power, but "gives way" or "fills the gap" according to the fluctuation of waste heat, realizing dynamic complementarity between recovered heat and active heating. This reduces the overall energy consumption of the machine while maintaining the continuity and stability of the drying process, achieving a technical effect that balances energy saving and drying efficiency.

[0097] Furthermore, in some possible implementations, the drying stage includes a preheating stage, a main drying stage, and a residual heat stage in sequence. The operating state of the heating element is dynamically adjusted based on the air outlet parameter values ​​of the drying duct in the current drying stage, including:

[0098] During the preheating stage, the temperature value of the air inlet 80 of the drying air duct is obtained;

[0099] If the temperature value is higher than the preset temperature value, the heating element 70 will be turned off;

[0100] Conversely, the heating element 70 is controlled to operate at a lower initial operating power.

[0101] In this embodiment, by reading only the air inlet temperature of the drying duct 80 during the preheating stage, the system can instantly determine whether the waste heat generated by the drive motor and clutch assembly is sufficient to preheat the airflow. If the air inlet temperature is higher than the preset temperature value, the heating element 70 is directly turned off, and preheating is completed entirely by recovering heat, avoiding unnecessary power consumption. If the air inlet temperature is insufficient, heat is supplemented with a lower first operating power, ensuring that the airflow quickly reaches the required initial temperature while minimizing additional energy consumption. Thus, the heating element 70 achieves on-demand activation of "waste heat priority and minimal supplementary heat" during the preheating stage, enabling the entire machine to enter energy-saving mode from the drying start point, while ensuring continuous and stable preheating, providing a consistent temperature starting point for the subsequent main drying stage, and balancing energy saving and drying reliability.

[0102] Furthermore, in some possible implementations, dynamically adjusting the operating state of the heating element 70 based on the air outlet parameter values ​​of the drying duct 80 during the current drying stage also includes:

[0103] During the main drying stage, the heating element 70 is turned on, and the temperature difference between the air outlet and the air inlet of the drying air duct 80 is obtained.

[0104] If the temperature difference is less than the first preset temperature difference, then turn off the heating element 70;

[0105] Conversely, the operating power of the heating element 70 is dynamically adjusted according to the degree to which the temperature difference exceeds the first preset temperature difference value.

[0106] During the main drying stage, the system uses the real-time temperature difference between the air outlet and air inlet of the drying duct as an indirect indicator of the dryness of the clothes: when the temperature difference is less than the first preset temperature difference value, it is determined that the clothes are basically dry and there is no need to continue heating. The heating element is then turned off, and the drying process is completed entirely by relying on residual heat and airflow, avoiding overheating and energy waste. When the temperature difference is greater than or equal to the threshold, the power of the heating element is dynamically adjusted according to the temperature difference to match the heat input with the remaining moisture content of the clothes, ensuring that the drying process is neither stagnant nor redundant. Thus, by controlling the start and stop of the heating element through the temperature difference, the system achieves on-demand energy supply of "stop heating when dry", which minimizes the energy consumption in the later stage while ensuring the drying quality, thus balancing energy saving and drying reliability.

[0107] Furthermore, in some possible implementations, adjusting the operating power of the heating element 70 according to the degree to which the temperature difference exceeds a first preset temperature difference value includes:

[0108] If the first preset temperature difference value ≤ temperature difference value < the second preset temperature difference value, control the heating element 70 to operate at the second operating power;

[0109] If the second preset temperature difference value ≤ temperature difference value < the third preset temperature difference value, control the heating element 70 to operate at the third operating power;

[0110] If the third preset temperature difference value is less than or equal to the temperature difference value, control the heating element 70 to operate at the fourth operating power;

[0111] The first operating power < the second operating power < the third operating power < the fourth operating power.

[0112] In this embodiment, during the main drying stage, the system divides the "temperature difference between the air outlet and the air inlet" into several intervals. Each interval corresponds to the operating power of the first-level heating element 70: the larger the temperature difference, the more humid the clothes are and the higher the heat required, so the heating element 70 is adjusted to a higher power level; the smaller the temperature difference, the lower the power level is automatically reduced until it is completely turned off. This forms a "temperature difference-power" stepped mapping, so that the output of the heating element 70 is always precisely matched with the real-time moisture content of the clothes, avoiding energy waste caused by full-power operation throughout the process, and preventing drying stagnation caused by insufficient power. Thus, while ensuring the uniformity of drying, it achieves energy-saving operation with gradual reduction in stages, achieving a high-efficiency, low-consumption, and reliable drying effect.

[0113] Furthermore, in some possible implementations, the drying control method further includes:

[0114] After running for a preset time during the preheating stage, it enters the main baking stage;

[0115] and / or

[0116] When the temperature difference during the main baking stage is less than the first preset temperature difference, the residual heat stage begins.

[0117] and / or

[0118] The drying program will be turned off after running for a preset time during the residual heat stage.

[0119] In this embodiment, the drying process is switched at the boundary using a dual-track criterion of "duration" and "temperature difference": the preset duration during the preheating stage ensures sufficient initial temperature rise and seamless transition to the main drying stage, avoiding energy waste caused by premature high power input; when the temperature difference in the main drying stage is lower than the first preset temperature difference value, it is immediately determined that the clothes are basically dry and automatically switches to the residual heat stage to prevent overheating and fabric damage; the residual heat stage ends with a preset duration, using the system's residual heat to complete the final drying and cool the clothes, and then the whole machine automatically stops to avoid fan idling and energy waste; thus, the entire process can achieve closed-loop energy-saving operation of "stage self-migration, drying and stopping heating, and full utilization of residual heat" without manual intervention, taking into account the optimal drying quality, timeliness and energy consumption.

[0120] Furthermore, a second aspect of this application provides a pulsator washing machine that includes the drying control method described above.

[0121] In this embodiment, the aforementioned drying control method is integrated into the hardware of the pulsator washing machine, enabling the clutch assembly, drive motor, drying duct, and heating element to form an organic system of "state switching - heat recovery - power self-adjustment - stage self-migration" under the unified scheduling of the controller. On the one hand, the periodic switching of the two operating states of the clutch achieves continuous mechanical action of loosening, untangling, and wrinkle prevention. On the other hand, through the direct thermal coupling and temperature difference closed loop between the duct and the motor / clutch, the waste heat priority strategy and the stepped supplementary heating strategy are embedded in each drying stage. Thus, at the machine level, a three-in-one efficient and low-consumption operation of "mechanical loosening + heat recovery + on-demand supplementary heating" is achieved, significantly reducing the overall power consumption of the machine, shortening the drying time, and reducing the phenomenon of clothes tangling and over-drying, achieving a comprehensive technical effect of energy saving, clothes protection, and quiet operation.

[0122] Furthermore, in some possible implementations, the washing machine includes:

[0123] Washing machines include:

[0124] The drying air duct 80 is connected to the inner cylinder 50 to form a drying air path;

[0125] The heating element 70, the drive motor 90, and the clutch assembly 20 are provided. The heating element 70 is disposed in the drying air duct 80. At least one of the drive motor 90 and the clutch assembly 20 is thermally coupled to the drying air duct to transfer the heat generated during operation to the drying air duct.

[0126] Fan 100 is installed in drying air duct 80 and is used to drive the airflow in the drying air duct.

[0127] In this embodiment, a heating element 70 is integrated within the drying duct 80, and the drive motor 90 and / or clutch assembly 20 are directly thermally coupled to the duct wall. Simultaneously, a fan 100 is arranged within the duct, forming an integrated "heat source-heat exchange-air delivery" airflow path. The heating element 70 provides instantly adjustable active heat, while the waste heat from the drive motor 90 and clutch assembly 20 is rapidly introduced into the same duct via the coupling surface. The fan 100 forces airflow across the dual heat source area, carrying away both waste heat and active heat in one go and directly delivering it to the inner drum 50. This structure eliminates the need for additional heat dissipation or heat exchange components, allowing waste heat to be utilized by the airflow the instant it is generated. This reduces the start-up frequency and operating power of the heating element 70, decreasing overall energy consumption and temperature rise noise. Simultaneously, the superposition of dual heat sources increases the duct temperature rise rate, shortening the time it takes for clothes to reach drying conditions, achieving a synergistic effect of efficient heat exchange, energy saving and noise reduction, and accelerated drying.

[0128] Furthermore, in some possible implementations, the washing machine also includes:

[0129] A motor heat capture device 200, located in the drying air duct 80 and thermally coupled to the drive motor 90, is used to capture waste heat from the motor; and

[0130] A clutch heat capture device 300 is located in the drying air duct 80 and thermally coupled to the clutch assembly 20 for capturing clutch waste heat.

[0131] In this process, the fan 100 drives the airflow of the drying air path to flow through the motor heat capture device 200 and the clutch heat capture device 300, so as to bring the captured waste heat into the inner cylinder.

[0132] In this embodiment, a motor heat capture device 200 and a clutch heat capture device 300 are added inside the drying air duct 80. The two are thermally coupled to the drive motor 90 and the clutch assembly 20, respectively, so that the heat on the surface of the heat source is quickly conducted to the fin side. Under the continuous drive of the fan 100, the cold airflow sweeps through the motor heat capture device 200 and the clutch heat capture device 300 in sequence, and immediately carries away the waste heat that was originally accumulated in the machine compartment and directly injects it into the inner cylinder through the auxiliary air path, so as to realize efficient heat transfer between the heat source and the cylinder, and use the recovered heat to increase the air inlet temperature inside the cylinder.

[0133] Of course, in some embodiments not shown, a heat pipe may be provided between the drying duct 80 and the drive motor 90 and the clutch assembly 20, so that the heat generated by the drive motor 90 and the clutch assembly 20 can be introduced into the drying duct 80.

[0134] Furthermore, in some possible embodiments, the washing machine also includes a main drive shaft 10 coaxially connected to the drive motor 90, and a clutch assembly 20 including a magnetic yoke 201 fixed to the main drive shaft 10 and an armature 202 axially engageable, the armature 202 being configured to engage with the magnetic yoke 201 to obtain torque when the corresponding coil 203 is energized.

[0135] The washing machine also includes:

[0136] A first transmission assembly 30 and a second transmission assembly 40 are provided corresponding to the clutch assembly 20;

[0137] The first transmission component 30 has its input end connected to the magnetic yoke 201 and its output end connected to the inner drum 50 of the washing machine. The second transmission component 40 has its input end connected to the armature 202 and its output end connected to the impeller chassis 60 of the washing machine.

[0138] In this embodiment, the clutch assembly 20 is integrated on the main drive shaft 10 coaxial with the drive motor 90, and the axial engagement / release of the magnetic yoke 201 and the armature 202 is used to achieve instant switching between the two transmission paths:

[0139] When the coil 203 is de-energized, the magnetic yoke 201 drives the inner cylinder 50 only through the first transmission component 30. The impeller chassis 60 is in a free state and rotates with the inner cylinder under its drive, forming an "overall loose" state. At this time, the clothes are lifted to a certain height under the drive of the inner cylinder and then fall, thus breaking up the tangled clumps of clothes and preventing clothes from getting tangled.

[0140] After the coil 203 is energized and attracted, the armature 202 engages with the yoke 201, and the torque is synchronously transmitted to the impeller chassis 60 via the second transmission assembly 40. Through the transmission ratio design, the impeller chassis 60 rotates in opposite directions to the inner drum 50, completing the "bottom-scattering" action. Specifically, the control clutch assembly is briefly engaged for 0.5 to 1 second, causing the impeller chassis 60 to perform a short forward or reverse rotation driven by the main drive shaft 10, thus "kicking away" and disturbing the clothes piled up at the bottom of the inner drum 50 to prevent them from accumulating.

[0141] This structure embeds the state switching function into the same axis of the motor, eliminating the need for an additional gearbox or one-way bearing. It can achieve the alternation between "inner cylinder rotation only" and "inner cylinder-impact wheel reverse synchronous rotation" in milliseconds, shortening the mechanical response time and reducing switching noise and wear. At the same time, the contact surface of the magnetic yoke 201 and the armature 202 directly serves as the torque transmission node of the main drive shaft 10, reducing intermediate transmission links, improving transmission efficiency, and exchanging the heat generated by the contact with the adjacent drying air duct 80 in real time through the main drive shaft 10. This achieves the integration of mechanical action and waste heat recovery, thereby ensuring the loosening and dispersing effect while further saving energy, reducing consumption, size and cost, and achieving the technical effect of high efficiency, quietness and compactness.

[0142] Furthermore, in some possible embodiments, at least one engaging end face of the yoke 201 and the armature 202 is provided with a plurality of magnetic units 2011. The magnetic units 2011 include permanent magnet units or magnetic conductor units that exhibit polarity after magnetization. The magnetic units 2011 are arranged circumferentially at intervals, and at least some of the units have unequal circumferential angles, so as to form a difference in circumferential magnetic flux density and generate tangential magnetic pull when engaging.

[0143] In this embodiment, magnetic units 2011 are provided on at least one engaging end face of the yoke 201 and the armature 202, and the circumferential angles of these magnetic units 2011 are not all equal, forming a difference in circumferential magnetic flux density, thereby generating a tangential magnetic pull at the moment of engagement; this tangential force causes the armature 202 to automatically rotate and finely adjust relative to the yoke 201, quickly overcomes the initial static friction, achieves rapid synchronization, reduces sliding friction work and wear, improves response speed, and at the same time reduces temperature rise and noise, and extends component life.

[0144] Furthermore, in some possible implementations, a plurality of magnetic units 2011 are arranged in an alternating NSNS pattern along the circumference, and at least one pair of adjacent magnetic units 2011 have unequal circumferential angles.

[0145] In this embodiment, by setting several magnetic units 2011 to alternate NSNS polarities along the circumference and ensuring that the circumferential angles of at least one pair of adjacent magnetic units 2011 are not equal, the magnetic flux density exhibits a regular high-low difference in the circumferential direction. This difference generates a continuous tangential magnetic pull at the moment the yoke 201 and armature 202 are attracted, driving the armature 202 to rotate automatically for alignment, further shortening the synchronization time, reducing slip friction loss, improving the stability of attraction and the life of the component.

[0146] Furthermore, in some possible implementations, the circumferential angles of any two adjacent magnetic units 2011 along the circumferential direction are not equal.

[0147] In this embodiment, all circumferentially adjacent magnetic units 2011 are set to have unequal circumferential angles, so that the magnetic flux density gradient changes continuously. During the attraction process between the yoke 201 and the armature 202, a continuous and gradually changing tangential magnetic pull is formed, which drives the armature 202 to rotate smoothly for alignment, further shortening the synchronization time, reducing impact and friction work, and improving the attraction compliance and component life.

[0148] Furthermore, in some possible implementations, the magnetic unit 2011 forms a fan-shaped pole region on the attraction end face. Multiple fan-shaped pole regions are arranged sequentially along the circumference and together form a complete circular end face, and the central angles of each fan-shaped pole region are not equal.

[0149] In this embodiment, the magnetic unit 2011 is designed as a fan-shaped pole region and arranged sequentially along the circumference to form a complete circular end face, and the central angles of each fan-shaped pole region are not equal, so that the magnetic yoke 201 and the armature 202 form a continuous and uniform circumferential magnetic flux density gradient at the moment of attraction; this gradient generates a stable tangential magnetic pull force, driving the armature 202 to rotate smoothly and align, further reducing impact and friction work, and improving the attraction synchronization accuracy and component life.

[0150] Furthermore, in some possible implementations, the circumferential direction of the suction end face is provided with a plurality of fan-shaped pole regions, which are configured to be arranged in the circumferential direction according to a preset gradient rule.

[0151] The preset gradient rule is configured such that the central angles of several sector polar regions increase or decrease gradually along the circumference.

[0152] In this embodiment, a preset gradient rule of "gradually increasing or decreasing and then returning to the initial value" is set on the attraction end face, so that the central angle of the sector pole region forms a continuously changing magnetic flux density gradient in the circumferential direction. This gradient generates a tangential magnetic pull force in the same direction at the moment when the yoke 201 and the armature 202 are attracted, driving the armature 202 to rotate smoothly and align, further reducing impact and friction work, improving the attraction synchronization accuracy and component life, and providing a basis for subsequent periodic repetitive layout.

[0153] Furthermore, in some possible implementations, the preset gradient rule is repeated once or multiple times over the whole cycle to form a cyclic gradient distribution.

[0154] In this embodiment, the central angle is set to a repeating sequence of "gradually increasing and then resetting" along the circumference using a cyclic gradient rule, so that the magnetic yoke 201 and the armature 202's attraction end face form a periodic magnetic flux density gradient. This gradient generates a tangential magnetic pull in the same direction in each cycle zone, driving the armature 202 to rotate smoothly in segments for alignment, continuously reducing the initial static friction and sliding friction work, achieving rapid synchronization, reducing wear, and improving the compliance and repeatability of the attraction process.

[0155] Furthermore, in some possible implementations, the circumferential direction of the suction end face is divided into eight consecutive sector-shaped pole regions, and the central angle of each sector-shaped pole region is distributed in a cyclic gradient distribution of 30°-40°-50°-60°-30°-40°-50°-60° along the circumferential direction.

[0156] In this embodiment, by arranging eight cyclic gradients in the order of 30°-40°-50°-60°-30°-40°-50°-60°, the magnetic yoke 201 and armature 202 form two "from sparse to dense" magnetic flux density waves at the engagement end face. These waves generate continuous and consistent tangential magnetic pull within each gradient segment, driving the armature 202 to rotate smoothly in two segments for alignment. This further shortens the synchronization time, reduces impact and friction work, and achieves fast, low-wear, and reliable engagement.

[0157] Furthermore, in some possible embodiments, the armature 202 and the yoke 201 are both constructed as coaxial disk-shaped structures, and the outer periphery of the armature 202 and the yoke 201 are both formed with annular belt grooves.

[0158] The belt groove is used to install the belt.

[0159] In this embodiment, the armature 202 and the magnetic yoke 201 are both designed as coaxial disc structures, and annular belt grooves are provided on their outer periphery. This allows the tangential magnetic pull force to be directly transmitted to the belt through the belt grooves at the moment of attraction, without the need for additional couplings or flanges. This integrated structure shortens the axial dimension, reduces the number of parts and assembly errors, and ensures efficient and stable rotational output after rapid synchronization, thereby reducing system weight and cost.

[0160] Furthermore, in some possible implementations, the clutch assembly also includes:

[0161] The return spring has one end fixed to the magnetic yoke 201 and the other end abutting against the armature 202.

[0162] In this embodiment, a reset spring is provided between the magnetic yoke 201 engagement surface and the armature 202 engagement surface. After the coil is de-energized, the spring immediately provides axial separation force, causing the armature 202 to quickly move away from the magnetic yoke 201, ensuring that the clutch disengages quickly without residual engagement. This structure shortens the disengagement time, avoids dragging and mis-transmitting torque, and reduces the dependence on the residual magnetism of the permanent magnet, thereby improving the response speed and reliability.

[0163] Furthermore, in some possible implementations, at least two clutch assemblies are arranged axially side-by-side on the main drive shaft;

[0164] The magnetic yoke 201 of each clutch assembly is fixedly sleeved on the main drive shaft, and the armature 202 is axially slidably sleeved on the main drive shaft and opposite to the corresponding magnetic yoke 201.

[0165] When the corresponding coil 203 is energized, the armature 202 is attracted to the yoke 201 to obtain torque.

[0166] In this embodiment, at least two clutch assemblies are arranged in parallel on the main drive shaft, and each yoke 201 is fixedly sleeved on the main drive shaft and the armature 202 is axially slidably sleeved. The engagement or disengagement of each armature 202 and yoke 201 is controlled by the independent on / off power of the corresponding coil 203, so that the same main drive shaft can instantly select and switch multiple output paths. The tangential magnetic pull ensures that each path is quickly synchronized, reduces sliding friction work, reduces wear and heat generation, and enables the system to have high response, reversibility and multi-level output capabilities. At the same time, it simplifies the structure, reduces the axial size, and reduces manufacturing and maintenance costs.

[0167] Furthermore, the aforementioned pulsator washing machine is a multi-tub pulsator washing machine with multiple washing drums;

[0168] Each washing drum is equipped with a clutch assembly 20, and a first transmission assembly 30 and a second transmission assembly 40 that are matched with the clutch assembly 20.

[0169] In this embodiment, the single drive motor 90 continuously rotates all the magnetic yokes 201 via the main drive shaft 10. The first transmission component 30 and the second transmission component 40 are respectively connected to the magnetic yokes 201 and the armature 202, forming two independent transmission chains. The transmission chain connected to the armature 202 (i.e., the second transmission component 40) can selectively input torque to the impeller chassis 60 by means of the switching on and off of the coil 203, so that it only starts to rotate when needed and generates a reverse differential water flow with another component that is always rotating. Thus, a single motor-clutch system can complete multi-drum, multi-mode, low-energy fine washing in a mini space, significantly reducing the number of parts, reducing costs, and improving reliability.

[0170] Furthermore, in some possible embodiments, the second transmission assembly 40 is configured to provide a reverse reversing structure in the transmission chain from the armature 202 to the impeller chassis 60, so that when the first transmission assembly 30 and the second transmission assembly 40 work simultaneously, the rotation direction of the impeller chassis 60 is opposite to the rotation direction of the inner cylinder 50.

[0171] In this embodiment, a reverse reversing structure is introduced between the armature 202 and the impeller chassis 60, so that when the coil 203 is engaged and the second transmission component 40 is powered, the impeller chassis 60 can rotate in the opposite direction to the inner drum 50. Thus, within the same single motor-clutch system, both the forward drum wall water flow and the reverse impeller water flow are generated simultaneously, forming a three-dimensional kneading effect, improving the washing ratio and reducing wear on clothes. Moreover, the reversal of direction is entirely guaranteed by the mechanical structure, without the need for additional control logic, further simplifying the system and improving reliability.

[0172] Furthermore, in some possible implementations, the reversing structure is configured to: while reversing the directions of the inner cylinder 50 and the impeller chassis 60, increase or decrease the output speed of the impeller chassis 60 relative to the speed of the inner cylinder 50, so as to create a speed difference between the impeller chassis 60 and the inner cylinder 50.

[0173] The reverse reversing structure in this embodiment not only sets the direction of the impeller chassis 60 to be opposite to that of the inner drum 50, but also synchronously completes the speed increase or decrease in the mechanical chain through the gear ratio or pulley diameter ratio, so that a speed difference is naturally formed between the impeller chassis 60 and the inner drum 50. This speed difference exists as soon as the clutch engages, and without additional control, it can generate water flow shear with adjustable strength in the drum, improve washing efficiency and reduce fabric wear, while maintaining a minimalist structure of single motor and single clutch, further reducing energy consumption and manufacturing costs.

[0174] Furthermore, in some possible implementations, the first transmission assembly 30 includes a first belt that is sleeved between the outer edge of the magnetic yoke 201 and the inner drum 50 shaft 501 of the corresponding washing drum, so as to synchronously transmit the torque of the magnetic yoke 201 to the inner drum 50.

[0175] In this embodiment, a single first belt directly connects the outer edge of the magnetic yoke 201 to the inner cylinder shaft 501, so that once the magnetic yoke 201 rotates with the main drive shaft 10, the inner cylinder 50 is synchronously driven and keeps rotating continuously in the forward direction. This belt pair has a simple structure and occupies very little space. It does not require additional deceleration or tensioning mechanisms, which not only ensures the smooth and reliable operation of the inner cylinder, but also provides a constant reverse reference for the impeller chassis 60 of the subsequent clutch control. Thus, the composite water flow foundation of "constantly rotating inner cylinder + controllable impeller" is realized in a miniature body with the lowest part cost.

[0176] Furthermore, in some possible implementations, the second transmission assembly 40 includes:

[0177] The second belt 401 is sleeved between the outer edge of the armature 202 and the pulley of a drive shaft 402;

[0178] The drive gear 403 is coaxially fixed on the transmission shaft 402; and

[0179] A driven gear disk 404 is fixed coaxially with the impeller shaft 601 and meshes with the driving gear 403;

[0180] The driving gear 403 and the driven gear disk 404 form a reverse reversing structure so that the rotation direction of the impeller chassis 60 is opposite to the rotation direction of the inner cylinder 50.

[0181] In this embodiment, the torque of the armature 202 is first transmitted to the drive shaft 402 via the second belt 401, and then the coaxial driving gear 403 meshes with the driven gear disk 404 to reverse the power and output it to the impeller shaft 601. This structure starts the moment the armature 202 is attracted, and the impeller chassis 60 can be rotated in the opposite direction to the inner drum 50 by using the first-level external meshing, forming a strong rubbing water flow and improving the washing ratio. At the same time, the entire chain segment has few parts and a small center distance, which can be directly hidden in the clutch cover without increasing the overall height of the machine, further ensuring the compactness and reliability of the mini washing machine.

[0182] Furthermore, in some possible implementations, the gear ratio of the driving gear 403 to the driven gear disk 404 is set such that the rotational speed of the impeller chassis 60 is different from the rotational speed of the inner cylinder 50.

[0183] In this embodiment, the tooth ratio between the driving gear 403 and the driven gear disk 404 is used to generate a speed difference during meshing and reversal, so that the speed of the impeller chassis 60 is naturally different from that of the inner drum 50. This speed difference exists instantly when the coil is attracted, and without additional control or speed change mechanism, the impeller differential speed eddy current can be superimposed in the continuous water flow in the inner drum, which improves washing efficiency and reduces clothes tangling. Moreover, the size of the speed difference can be flexibly adjusted by simply changing the number of teeth, further simplifying the structure, reducing noise and cost, and improving the adaptability and reliability of the mini washing machine.

[0184] Furthermore, in some possible implementations, the washing machine also has at least a first washing mode, a second washing mode, and a third washing mode;

[0185] In the first washing mode, the armature 202 is controlled to separate from the yoke 201:

[0186] In the second washing mode, the armature 202 is controlled to couple with the yoke 201;

[0187] In the third washing mode, the armature 202 is controlled to be intermittently coupled with the yoke 201.

[0188] In this embodiment, by controlling the armature 202 and the yoke 201 to three states—separation, continuous coupling, and intermittent coupling—three washing modes are formed: a first washing mode (only the inner drum 50 rotates, the impeller base 60 is stationary, and the water flow is gentle), a second washing mode (the inner drum 50 and the impeller base 60 rotate in opposite directions simultaneously, and the water rubs vigorously), and a third washing mode (the impeller base 60 intermittently reverses direction, generating periodic strong and weak water flows). This allows for the implementation of multiple programs such as gentle washing, standard washing, and fine washing within the same single-motor-single-clutch hardware. This control requires no additional actuators; it can be completed simply by changing the on / off timing of the coil 203. This significantly simplifies the system, shortens program switching time, reduces energy consumption and noise, and improves the functional density and user experience of the mini washing machine.

[0189] Furthermore, in some possible implementations,

[0190] The first washing mode is the baby care mode;

[0191] The second washing mode is the standard clean wash mode;

[0192] The third washing mode is the lingerie decal wash mode.

[0193] Specifically:

[0194] If the user selects the "Baby Care" mode of the "Inner Drum", the coil 203 is not energized and the armature 202 is stationary. Power is transmitted through the magnetic yoke 201 and the first belt to drive the inner drum 50 to rotate in the forward direction. The impeller chassis 60 is not powered and remains stationary. The water flow inside the drum rotates steadily in one direction, performing a gentle baby care.

[0195] If the user selects the "Standard Wash" mode for the "Inner Drum", the coil 203 is energized, attracting the armature 202. The power is divided into two paths through the main drive shaft 10: one path drives the inner drum 50 to rotate forward via the magnetic yoke 201 and the first belt, and the other path drives the impeller chassis 60 to rotate in the opposite direction via the armature 202, the second belt 401, the transmission shaft 402, the drive gear 403, and the driven gear disk 404. The water flow inside the drum will tumble violently due to the rotational driving forces in two opposite directions, performing a standard wash.

[0196] If the user selects the "underwear washing" mode of the "inner drum", the inner drum 50 and the impeller chassis 60 rotate in opposite directions intermittently with a specific speed difference, achieving efficient cleaning and low wear. At this time, the coil 203 of the clutch assembly 20 is intermittently switched on and off, thereby causing the armature 202 to intermittently drive the impeller chassis 60 to reverse.

[0197] If the user selects the "single-disengagement" mode of the "inner cylinder", the coil 203 of the clutch assembly 20 is not energized, and the main drive shaft 10 drives the inner cylinder 50 to run at high speed through the magnetic yoke 201 and the first belt to dehydrate.

[0198] It should be noted that since the multiple inner cylinders 50 are controlled by the energization and de-energization of their respective coils 203 to achieve independent model operation, and since the multiple inner cylinders 50 are driven by the same main drive shaft, the "single disengagement" mode must be carried out simultaneously when the multiple inner cylinders 50 are working at the same time.

[0199] More specifically, since the magnetic yoke 201 and armature 202 in this embodiment can generate tangential magnetic pull when attracted, the pulsator washing machine in this embodiment can also be equipped with a micro-vibration mode, such as... Figure 6 As shown, when the coil is energized, the magnetic field generates a tangential magnetic pull at the moment of engagement, achieving rapid self-alignment and low-friction engagement. The control system applies a high-frequency pulse signal to the coil 203 to achieve high-frequency repeated engagement and disengagement of the armature 202 and the yoke 201, driving the inner drum 50 to generate low-amplitude, high-frequency micro-vibrations, thus achieving optimized control in rinsing or spin-drying modes. Specifically, during the rinsing stage, the control system applies a PWM signal with a frequency of 10Hz–50Hz and a duty cycle of 10%–40%, causing the inner drum 50 to generate low-amplitude reciprocating micro-vibrations, which are used to break up and remove detergent foam from the clothing fibers.

[0200] Specifically, in the micro-vibration washing mode, a high-frequency pulse signal is applied to the coil 203 of the clutch assembly 20;

[0201] The drying air duct 80 is also equipped with a heat dissipation vent that connects to the external environment and can be turned on and off. The heat dissipation vent is controlled to open when the fabric processing equipment is running the micro-vibration washing mode.

[0202] It should be noted that in this embodiment, magnetic units 2011 with unequal circumferential angles are implanted on the attraction end faces of the yoke 201 and the armature 202, forming a non-uniform magnetic flux distribution. Therefore, a tangential magnetic pull is generated at the moment of attraction, driving the armature 202 to make a slight circumferential slip relative to the yoke 201. This transforms the traditional rigid attraction into a "micro-rotation-friction" coupling, realizing the small reciprocating torque of the impeller required for low-frequency vibration washing. For this micro-vibration mode: high-frequency pulses continuously switch the coil 203 on and off, and the main yoke and armature repeatedly slide and rub under the tangential magnetic pull, generating additional frictional heat. At this time, the heat dissipation port of the drying air duct 80 is opened, and the large amount of heat accumulated on the surface of the clutch can be discharged through the heat dissipation port, avoiding the decrease in magnetic performance, attraction delay or increased wear caused by temperature rise. This ensures stable torque and rapid response throughout the micro-vibration washing process. At the same time, the original auxiliary air duct is used to achieve rapid heat dissipation, eliminating the need for an additional fan or heat sink, thus balancing performance under special working conditions and cost control.

[0203] In the above embodiments of this application, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments. The steps illustrated in the related flowcharts can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown here. In other words, the order of steps described in the foregoing embodiments is merely an example. Reasonable adjustments to the order of steps based on the content of the embodiments of this application are also within the protection scope of the embodiments of this application.

[0204] The sequence numbers or order of description of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0205] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0206] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drying control method for a pulsator washing machine, characterized in that, The washing machine includes: an inner drum (50), a pulsator chassis (60), a drive motor (90), a main drive shaft (10) coaxially connected to the drive motor (90), a clutch assembly (20), and a first transmission assembly (30) and a second transmission assembly (40) corresponding to the clutch assembly (20). The clutch assembly (20) includes a magnetic yoke (201) fixed to the main drive shaft (10) and an axially engaging armature (202). The armature (202) is configured to engage with the magnetic yoke (201) to obtain torque when the corresponding coil (203) is energized. The input end of the first transmission assembly (30) is drivenly connected to the magnetic yoke (201), and the output end is connected to the inner drum (50) of the washing machine. The input end of the second transmission assembly (40) is connected to the armature. (202) The drive connection and output end are connected to the impeller chassis (60) of the washing machine. At least one of the magnetic end faces of the magnetic yoke (201) and the armature (202) are provided with a plurality of magnetic units (2011). The magnetic unit (2011) includes a permanent magnet unit or a magnetic conductor unit that exhibits polarity after magnetization. Each magnetic unit (2011) is arranged circumferentially and at least some of the units have different circumferential angles, so as to form a difference in circumferential magnetic flux density and generate tangential magnetic pull when attracted. The clutch assembly (20) has: First operating state: The output of the drive motor (90) is transmitted only to the inner cylinder (50), and Second operating state: The output of the drive motor (90) is simultaneously transmitted to the inner cylinder (50) and the impeller chassis (60). By controlling the switching of the operating state of the clutch assembly (20), the pulsator chassis (60) is controlled to rotate by the drive motor (90); The washing machine is also provided with a drying air duct (80), which thermally couples the clutch assembly (20) and / or the drive motor (90) to receive heat generated by at least one of them during operation; The drying control method includes: During the drying process, the operating state of the clutch assembly (20) is dynamically adjusted according to the drying stage; The drying stage includes, in sequence, a preheating stage, a main drying stage, and a residual heat stage. The dynamic adjustment of the operating state of the clutch assembly according to the drying stage includes: During the preheating and main drying stages, the clutch assembly (20) is controlled to maintain a first operating state during a first preset time period and to repeatedly switch between the first operating state and the second operating state during a second preset time period. During the residual heat phase, the clutch assembly (20) is controlled to remain in the first operating state only; When the clutch assembly (20) is in the second operating state, the rotation direction of the impeller chassis (60) is opposite to that of the inner cylinder (50).

2. The drying control method according to claim 1, characterized in that, The drying air duct is equipped with a heating element (70); The drying control method further includes: dynamically adjusting the operating status of the heating element according to the air outlet parameter value of the drying air duct (80) in the current drying stage; The air outlet parameters include at least the inlet temperature and outlet temperature of the drying air duct (80).

3. The drying control method according to claim 2, characterized in that, The drying stage includes a preheating stage, a main drying stage, and a residual heat stage in sequence. The dynamic adjustment of the heating element's operating state based on the air outlet parameter values ​​of the drying duct in the current drying stage includes: During the preheating stage, the temperature value of the air inlet of the drying air duct (80) is obtained; If the temperature value is higher than the preset temperature value, the heating element (70) will be turned off. Conversely, the heating element (70) is controlled to operate at a lower initial operating power.

4. The drying control method according to claim 3, characterized in that, The method of dynamically adjusting the operating status of the heating element (70) based on the air outlet parameter values ​​of the drying air duct (80) in the current drying stage also includes: During the main drying stage, the heating element (70) is turned on, and the temperature difference between the air outlet and the air inlet of the drying air duct (80) is obtained; If the temperature difference is less than the first preset temperature difference, then turn off the heating element (70); Conversely, the operating power of the heating element (70) is dynamically adjusted according to the degree to which the temperature difference exceeds the first preset temperature difference.

5. The drying control method according to claim 4, characterized in that, The adjustment of the operating power of the heating element (70) based on the degree to which the temperature difference exceeds the first preset temperature difference includes: If the first preset temperature difference value ≤ temperature difference value < the second preset temperature difference value, control the heating element (70) to operate at the second operating power; If the second preset temperature difference value ≤ temperature difference value < the third preset temperature difference value, control the heating element (70) to operate at the third operating power; If the third preset temperature difference value is less than or equal to the temperature difference value, the heating element (70) is controlled to operate at the fourth operating power. The first operating power < the second operating power < the third operating power < the fourth operating power.

6. The drying control method according to any one of claims 1-5, characterized in that, The drying control method further includes: After running for a preset time during the preheating stage, it enters the main baking stage; and / or When the temperature difference during the main baking stage is less than the first preset temperature difference, the residual heat stage begins. and / or The drying program will be turned off after running for a preset time during the residual heat stage.

7. A pulsator washing machine, characterized in that, include: A controller configured to perform the drying control method according to any one of claims 1-6.

8. The pulsator washing machine according to claim 7, characterized in that, The washing machine includes: The drying air duct (80) is connected to the inner cylinder (50) to form a drying air path; The heating element (70), drive motor (90), and clutch assembly (20) are provided in the drying duct (80), and at least one of the drive motor (90) and clutch assembly (20) is thermally coupled to the drying duct to transfer the heat generated during operation to the drying duct. A fan (100) is provided in the drying air duct (80) to drive the airflow in the drying air duct.

9. The pulsator washing machine according to claim 8, characterized in that, The washing machine also includes a main drive shaft (10) coaxially connected to the drive motor (90), and the clutch assembly (20) includes a magnetic yoke (201) fixed to the main drive shaft (10) and an armature (202) axially attracted. The armature (202) is configured to engage with the magnetic yoke (201) when the corresponding coil (203) is energized to obtain torque. The washing machine also includes: A first transmission assembly (30) and a second transmission assembly (40) are provided corresponding to the clutch assembly (20); The input end of the first transmission component (30) is driven to be connected to the magnetic yoke (201) and the output end is connected to the inner drum (50) of the washing machine. The input end of the second transmission component (40) is driven to be connected to the armature (202) and the output end is connected to the impeller chassis (60) of the washing machine.

10. The pulsator washing machine according to claim 9, characterized in that, The magnetic yoke (201) and the armature (202) have at least one attraction end face provided with a plurality of magnetic units (2011). The magnetic units (2011) include permanent magnet units or magnetic conductor units that exhibit polarity after magnetization. Each magnetic unit (2011) is arranged circumferentially at intervals and at least some units have unequal circumferential angles, so as to form a circumferential magnetic flux density difference and generate tangential magnetic pull when attracted.

11. The pulsator washing machine according to claim 10, characterized in that, The magnetic units (2011) are arranged in an alternating NSNS pattern along the circumferential direction, and the circumferential angles of at least one pair of adjacent magnetic units (2011) are not equal.

12. The pulsator washing machine according to claim 11, characterized in that, The circumferential angles of any two adjacent magnetic units (2011) along the circumferential direction are not equal.

13. The pulsator washing machine according to claim 12, characterized in that, The magnetic unit (2011) forms a fan-shaped pole region on the attraction end face. Multiple fan-shaped pole regions are arranged sequentially along the circumference and together form a complete circular end face, and the central angles of each fan-shaped pole region are not equal.

14. The pulsator washing machine according to claim 13, characterized in that, The suction end face is provided with a number of fan-shaped pole regions in the circumferential direction, and the number of fan-shaped pole regions are configured to be arranged in the circumferential direction according to a preset gradient rule; The preset gradient rule is configured such that the central angles of several sector polar regions increase or decrease gradually along the circumference.

15. The pulsator washing machine according to claim 14, characterized in that, The preset gradient rule is repeated once or multiple times over the whole week to form a cyclic gradient distribution.

16. The pulsator washing machine according to claim 15, characterized in that, The circumferential direction of the suction end face is divided into eight consecutive sector-shaped pole regions, and the central angle of each sector-shaped pole region is distributed in a cyclic gradient distribution of 30°-40°-50°-60°-30°-40°-50°-60° along the circumferential direction.

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