Clothes treatment device and clothes treatment device control method

Abstract

The present application discloses a clothes treatment device and a clothes treatment device control method. The clothes treatment device comprises a base and a motor; the motor is mounted on the base, and the motor comprises a first rotor, a second rotor, and a stator; the stator is arranged between the first rotor and the second rotor; the stator is provided with a limiting structure; the limiting structure is spaced apart from the base; and the limiting structure is configured to be abutted against by the base when the stator rotates. According to the technical solution of the present application, a stator is provided with a limiting structure, and when a motor is mounted, if constraints on the stator fail and then the stator rotates, the limiting structure rotates along with the stator and then is abutted against, so that continuous rotation of the stator is restricted, and continuous collision between the stator and other components is avoided, thereby avoiding the damage to the motor or other components.

Description

Clothes processing device and clothes processing device control method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the Patent Office of China on December 29, 2023, with application number 202311871684.8 and application name “Clothing Treatment Device and Clothing Treatment Device Control Method”, and the Chinese patent application filed with the Patent Office of China on December 29, 2023, with application number 202323666156.7 and application name “Clothing Treatment Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of clothing processing, and in particular to a clothing processing device and a method for controlling the clothing processing device. Background Art

[0004] Some clothing processing devices use the same rotor of the motor to drive the drum and the wind wheel to rotate synchronously to dry the clothes. During the drying process, in order to prevent the clothes from getting tangled together, the drum needs to rotate forward for a period of time and then reverse. When the drum reverses, the wind wheel also reverses. The reversal of the wind wheel will cause the airflow and air volume to decrease, which will impact the thermal system of the clothing processing device and cause the operation of the clothing processing device to be unstable. In the related art, a dual-rotor motor has appeared. This motor has two rotors. The two rotors drive the drum and the wind wheel respectively, and can be controlled separately without interfering with each other. When the current dual-rotor motor is installed, it will form a certain constraint on the stator. The stator does not move while the rotor moves. If the constraint on the stator is damaged, the stator will also rotate as the rotor rotates, and then the stator will constantly collide with other components and generate noise. The motor and the components that collide with the stator are prone to damage.

[0005] Application Contents

[0006] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a clothes processing device.

[0007] To achieve the above-mentioned purpose, the present application discloses a clothes processing device, comprising a base and a motor, wherein the motor is mounted on the base, and the motor comprises:

[0008] first rotor;

[0009] a second rotor; and

[0010] The stator is arranged between the first rotor and the second rotor. The stator is provided with a limiting structure. The limiting structure and the base are arranged alternately. The limiting structure is suitable for being abutted by the base when the stator rotates.

[0011] In some embodiments of the present application, the limiting structure is protruded from the surface of the stator.

[0012] In some embodiments of the present application, the limiting structure is provided at the bottom of the stator.

[0013] In some embodiments of the present application, the limiting structure includes a first corner portion, a second corner portion and a flat plate portion, the first corner portion is arranged on one side of the central axis of the stator, the second corner portion is arranged on the other side of the central axis of the stator, and the flat plate portion is arranged between the first corner portion and the second corner portion.

[0014] In some embodiments of the present application, the motor further comprises:

[0015] a transmission shaft passing through the stator, the first rotor, and the second rotor, the transmission shaft having a first end exposed to the first rotor and a second end exposed to the second rotor;

[0016] a first support structure adapted to support the first end;

[0017] a second support structure adapted to support the second end; and

[0018] A pulley, wherein the first rotor is suitable for driving the pulley to rotate, and the pulley is suitable for being connected to the roller through a first transmission belt to drive the roller to rotate; the pulley and the first supporting structure are arranged on the same side of the first rotor, and along the axial direction of the transmission shaft, the pulley is away from the first rotor relative to the first supporting structure.

[0019] In some embodiments of the present application, the first rotor is rotatably arranged relative to the transmission shaft;

[0020] The motor further includes a shaft sleeve, the shaft sleeve being sleeved on the first end and connected to the first rotor so as to follow the first rotor and rotate relative to the transmission shaft;

[0021] The first supporting structure is sleeved with the shaft sleeve to support the first end. The shaft sleeve is suitable for being connected to the pulley through a second transmission belt to drive the pulley to rotate.

[0022] In some embodiments of the present application, the sleeve is rotatable relative to the first supporting structure.

[0023] In some embodiments of the present application, the motor further includes a bearing, and the shaft sleeve is mounted on the transmission shaft through the bearing.

[0024] In some embodiments of the present application, the motor further includes a connecting shaft, the connecting shaft is connected to the stator, and the pulley is rotatably disposed on the connecting shaft.

[0025] In some embodiments of the present application, the motor further includes a reinforcement portion supporting the connecting shaft, wherein the reinforcement portion is provided on the stator and extends from the stator to a radial direction of the first rotor.

[0026] In some embodiments of the present application, the connecting shaft and / or the reinforcement portion is provided with a hanging ear, the hanging ear is located between the first rotor and the pulley, and the hanging ear is suitable for being hung with a spring to be pulled.

[0027] In some embodiments of the present application, the second rotor is connected to the transmission shaft to drive the transmission shaft to rotate, and the second end is suitable for being installed on a wind wheel to drive the wind wheel to rotate.

[0028] In some embodiments of the present application, the second supporting structure is sleeved on the second end to support the second end, and the transmission shaft is rotatably arranged relative to the second supporting structure.

[0029] In some embodiments of the present application, a gap is provided between the limiting structure and the base, the clothing processing device further comprises a sensor, the sensor is provided in the gap, and the limiting structure is suitable for triggering the sensor when the stator rotates.

[0030] The present application also discloses a method for controlling a clothes processing device. Based on the above clothes processing device, the method for controlling the clothes processing device comprises the following steps:

[0031] Control the start of the compressor;

[0032] controlling the first rotor to rotate forward and reverse within a first preset time;

[0033] controlling the second rotor to rotate forward within a second preset time;

[0034] The internal air humidity of the drum is obtained and the compressor is controlled to stop when the humidity reaches a preset threshold.

[0035] In some embodiments of the present application, the laundry processing device control method further includes the following steps:

[0036] After the compressor is controlled to stop, the motor continues to run for a third preset time or when the air outlet temperature of the drum reaches a preset threshold, the motor is controlled to stop.

[0037] In some embodiments of the present application, the laundry processing device control method further includes the following steps:

[0038] Before controlling the compressor to start, the first rotor is controlled to rotate forward and reverse within a fourth preset time, and the fourth preset time is less than the first preset time.

[0039] In some embodiments of the present application, the laundry processing device control method further includes the following steps:

[0040] Before the motor starts, the sensor status is obtained. If the sensor is in the triggered state, an error message is output and the motor is controlled not to start. If the sensor is in the non-triggered state, the motor is controlled to start.

[0041] After the motor is started, the status of the sensor is obtained. If the sensor is in the triggered state, an error message is output and the motor is controlled to stop. If the sensor is in the non-triggered state, the motor is controlled to keep running until the motor continues to run for a third preset time or the air outlet temperature of the drum reaches a preset threshold.

[0042] The technical solution of the present application is to provide a limiting structure on the stator. After the motor is installed, if the constraint on the stator fails and the stator rotates, the limiting structure will follow the stator and then be abutted, thereby limiting the continued rotation of the stator, avoiding continuous collision between the stator and other components, and preventing damage to the motor or other components.

[0043] Other advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application 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, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0045] FIG1 is a schematic diagram of a partial structure of a clothes processing device according to some embodiments;

[0046] Figure 2 is an enlarged view of the portion marked A in Figure 1;

[0047] FIG3 is a schematic diagram of a partial structure of a clothes processing device in some embodiments (without the base);

[0048] FIG4 is a schematic diagram of a motor in some embodiments;

[0049] FIG5 is a front view of a motor in some embodiments;

[0050] FIG6 is a schematic diagram of a motor in some embodiments (the structure is different from FIG4 );

[0051] FIG7 is an exploded view of a motor in some embodiments;

[0052] FIG8 is a schematic diagram of a motor in some embodiments (the mounting ear structure is different from that in FIG6 );

[0053] FIG9 is a control flow chart of a clothes processing device in some embodiments;

[0054] FIG10 is a control flow chart of a clothes processing device in some embodiments (with step S50 added compared to FIG9 );

[0055] FIG11 is a control flow chart of a clothes processing device in some embodiments (with step S60 added compared to FIG10 );

[0056] FIG12 is a flow chart of motor fault determination in some embodiments.

[0057] Explanation of the accompanying drawings: Motor 100, first rotor 1100, second rotor 1200, stator 1300, reinforcement portion 1310, limiting structure 1320, first corner portion 1321, second corner portion 1322, flat portion 1323, transmission shaft 2000, first end 2100, second end 2200, first support structure / first support wheel 3100, second support structure / second support wheel 3200, sleeve 4100, first position 4110, second position 4120, bearing 4130, pulley 4200, connecting shaft 4210, first transmission belt 4300, second transmission belt 4400, drum 5100, wind wheel 5200, hanging ear 6000, base 7000, gap 7100, sensor 7200, spring 8000, inverter 9000.

[0058] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0060] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0061] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0062] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0063] The first aspect of the present application discloses a motor 100. As shown in Figures 1 to 4, the motor 100 includes a first rotor 1100, a stator 1300 and a second rotor 1200. The first rotor 1100 is arranged on one side of the stator 1300, and the second rotor 1200 is arranged on the other side of the stator 1300, so that the stator 1300 is located between the first rotor 1100 and the second rotor 1200, and the stator 1300 is provided with a limiting structure 1320. The limiting structure 1320 is used to be abutted when the stator 1300 rotates.

[0064] By providing a limiting structure 1320 on the stator 1300, after the motor 100 is installed, if the constraint on the stator 1300 fails and the stator 1300 rotates, the limiting structure 1320 rotates with the stator 1300 and is then abutted, thereby limiting the continued rotation of the stator 1300, avoiding continuous collision between the stator 1300 and other components (drum, clothing processing equipment housing, inverter 9000, etc.), and preventing damage to the motor 100 or other components.

[0065] Specifically, the first rotor 1100, the stator 1300 and the second rotor 1200 cooperate with each other to make the motor 100 form a dual-rotor structure. The dual-rotor structure of the motor 100 means that the first rotor 1100 and the second rotor 1200 can be controlled separately without affecting each other. The second rotor 1200 can be stationary when the first rotor 1100 rotates, or the second rotor 1200 can be rotated when the first rotor 1100 is stationary. It can also be that the first rotor 1100 rotates forward and the second rotor 1200 rotates reversely, and the second rotor 1200 rotates forward when the first rotor 1100 rotates reversely.

[0066] It is understood that when the motor 100 is normally installed, the stator 1300 is the stationary portion, while the first rotor 1100 and the second rotor 1200 are the rotatable portions. When the motor 100 is energized, the first rotor 1100 can rotate relative to the stator 1300, and the second rotor 1200 can rotate relative to the stator 1300. For example, the stator 1300 includes an iron core winding having a portion corresponding to the first rotor 1100 and a portion corresponding to the second rotor 1200. The first rotor 1100 and the second rotor 1200 each include a permanent magnet. When the stator 1300 is energized, the first rotor 1100 and / or the second rotor 1200 can be driven to rotate. Of course, the structures of the first rotor 1100, the stator 1300, and the second rotor 1200 are not limited to this. More examples of motors 100 with dual rotor structures can be found in related art, and are not further described here.

[0067] The first rotor 1100 is disposed on one side of the stator 1300 , and the second rotor 1200 is disposed on the other side of the stator 1300 . In this way, the motor 100 can drive corresponding components (the drum 5100 and the wind wheel 5200 ) on opposite sides, saving space. For example, taking the application of the motor 100 to a clothing processing device as an example (the following description will take the clothing processing device as an example, the clothing processing device is such as a dryer), the first rotor 1100 is used to drive the drum 5100 to rotate, and the second rotor 1200 is used to drive the wind wheel 5200 to rotate. When the clothing processing device dries clothes, the first rotor 1100 can drive the drum 5100 to rotate, and the second rotor 1200 can drive the wind wheel 5200 to rotate, thereby driving the air flow into the drum 5100, thereby achieving the drying of clothes. Since the rotation of the first rotor 1100 and the rotation of the second rotor 1200 are controlled separately and do not interfere with each other, when the first rotor 1100 drives the drum 5100 to rotate reversely, it does not affect the second rotor 1200 driving the wind wheel 5200 to rotate forward, and the airflow and air volume will not be reduced, which is more conducive to the drying of clothes and the stability of the thermal system (such as a heat pump system).

[0068] It is understandable that in the related art, the motor 100 (having only one rotor) drives the drum 5100 and the impeller 5200 simultaneously. During the process of drying clothes in the clothing processing device, the motor 100 needs to drive the drum 5100 to rotate forward and reverse to prevent the clothes from being entangled. Since the motor 100 drives the drum 5100 and the impeller 5200 simultaneously, when the drum 5100 rotates forward and reverse, the impeller 5200 will also rotate forward and reverse accordingly. When the impeller 5200 reverses, the airflow volume will decrease. The decrease in airflow volume will cause a transient increase in heat, which will have an impact on the temperature control and stable operation of the clothing processing device. For example, a clothing processing device heats the airflow through the operation of a heat pump system (i.e., a heat pump-type clothing processing device). When the impeller 5200 reverses, the decrease in airflow volume will cause the temperature of the heat pump system to increase transiently, which is not conducive to the stable operation of the clothing processing device. In this embodiment, by designing the motor 100 into a dual-rotor structure, the first rotor 1100 and the second rotor 1200 can be controlled separately and operate independently. The first rotor 1100 can realize forward rotation and reverse rotation, while the second rotor 1200 can always realize forward rotation. The first rotor 1100 and the second rotor 1200 do not interfere with each other. In this way, the second rotor 1200 can always rotate forward, and the airflow volume will not be reduced due to the reverse rotation of the first rotor 1100, thereby ensuring the stable operation of the clothing processing equipment.

[0069] Generally speaking, when the motor 100 is properly installed, it constrains the stator 1300, preventing it from rotating. For example, the motor 100 is mounted on the base 7000 of a laundry processing device. The first rotor 1100, stator 1300, and second rotor 1200 are suspended in mid-air (supported by a drive shaft 2000, as described below). The first rotor 1100 drives the drum 5100, while the second rotor 1200 drives the impeller 5200. A spring 8000 is mounted on the stator 1300, the other end of which is hooked onto the base 7000. The spring 8000 pulls on the stator 1300, thereby constraining it. In addition, the first rotor 1100 drives the drum 5100 to rotate by providing a pulley 4200. The pulley 4200 is fixed to the stator 1300. The pulley 4200 can be directly fixed to the stator 1300 or indirectly fixed to the stator 1300. The first rotor 1100 drives the pulley 4200 to rotate. The pulley 4200 and the drum 5100 are connected by a first transmission belt 4300, thereby driving the drum 5100 to rotate. The first transmission belt 4300 also restrains the stator 1300. In some cases, if the first transmission belt 4300 breaks and / or the spring 8000 is disconnected, the stator 1300 loses its restraint. When the motor 100 starts, the stator 1300 will rotate, and then the stator 1300 will continuously collide with other components such as the inverter 9000 and the base 7000, which may damage the motor 100 or other components.

[0070] To this end, in this embodiment, a limiting structure 1320 is provided on the stator 1300. When the stator 1300 rotates, the limiting structure 1320 can rotate with the stator 1300 and then abut. It will be understood that abutment means that the limiting structure 1320 is stopped by some structure, thereby limiting the continued rotation of the stator 1300, preventing the stator 1300 from continuously colliding with other components, preventing the generation of noise, and simultaneously preventing damage to the motor 100. For example, in some embodiments, a portion of the structure of the base 7000 forms a stop for the limiting structure 1320. Of course, this is not limited to the base 7000; other structures can also be used as long as they can form a stop for the limiting structure 1320. The provision of the limiting structure 1320 also facilitates the packaging and positioning of the motor 100 during the packaging and transportation phase of the motor 100, preventing the motor 100 from rotating arbitrarily.

[0071] As shown in conjunction with Figures 4 and 5 , in some embodiments of the present application, a limiting structure 1320 is protruded from the surface of the stator 1300. Generally, the stator 1300 has a substantially cylindrical appearance to adapt to the structure of the rotor (the first rotor 1100 and the second rotor 1200). By protruding the limiting structure 1320 from the surface of the stator 1300, the coordination between the stator 1300 and the rotor (the first rotor 1100 and the second rotor 1200) is not interfered with. Moreover, since the limiting structure 1320 needs to be abutted, the protruding configuration of the limiting structure 1320 makes it easier to coordinate with structures outside the motor 100, without affecting the installation of the motor 100.

[0072] As shown in conjunction with Figures 4 and 5, in some embodiments of the present application, a limiting structure 1320 is provided at the bottom of the stator 1300. It will be understood that, herein, the up and down directions are based on the base 7000 on which the motor 100 is mounted on the clothing processing device, with the side closer to the ground being the bottom and the side facing away from the ground being the top. Generally speaking, the motor 100 is relatively heavy, so when it is mounted on the base 7000, it needs to be close to the base 7000 to improve the installation stability of the motor 100. The space next to and above the motor 100 needs to be installed with components such as the inverter 9000. Therefore, by providing the limiting structure 1320 at the bottom of the stator 1300, interference with related components arranged around the motor 100 can be avoided.

[0073] 5 , in some embodiments of the present application, the limiting structure 1320 includes a first corner portion 1321, a flat portion 1323, and a second corner portion 1322. The first corner portion 1321 is disposed on one side of the central axis of the stator 1300, while the second corner portion 1322 is disposed on the other side of the central axis of the stator 1300. It will be understood that the central axis of the stator 1300 is coaxial with the rotational axis of the first rotor 1100 and the rotational axis of the second rotor 1200, defining a plane passing through the central axis of the stator 1300. The first corner portion 1321 is located on one side of the plane, while the second corner portion 1322 is located on the other side of the plane. Since the first rotor 1100 can rotate both forward and reverse, the second rotor 1200 can also rotate both forward and reverse. That is, if the stator 1300 rotates, the stator 1300 may also rotate both forward and reverse. By providing a first corner portion 1321 on one side of the central axis of the stator 1300 and a second corner portion 1322 on the other side, the forward and reverse rotation of the stator 1300 can be restricted by the provision of the first corner portion 1321 and the second corner portion 1322.

[0074] As shown in conjunction with Figures 6 to 8 , in some embodiments of the present application, the motor 100 further includes a transmission shaft 2000, a first support structure 3100, a second support structure 3200, and a pulley 4200. The transmission shaft 2000 passes through the first rotor 1100, the stator 1300, and the second rotor 1200. One end of the transmission shaft 2000, defined as the first end 2100, is exposed from the first rotor 1100, while the other end of the transmission shaft 2000, defined as the second end 2200, is exposed from the second rotor 1200. The first support structure 3100 is used to support the first end 2100, while the second support structure 3200 is used to support the second end 2200. The first support structure 3100 and the second support structure 3200 enable the motor 100 to be supported and mounted. The pulley 4200 is rotatably connected to the drum 5100 via a first transmission belt 4300, thereby driving the drum 5100 to rotate. The rotation of the pulley 4200 is achieved via the first rotor 1100. The first rotor 1100 drives the pulley 4200 to rotate, thereby causing the pulley 4200 to rotate the drum 5100 via the first transmission belt 4300. It will be appreciated that the first rotor 1100 can directly or indirectly drive the pulley 4200 to rotate. The pulley 4200 and the first support structure 3100 are disposed on the same side of the first rotor 1100. Along the axial direction of the transmission shaft 2000, the pulley 4200 is designed to be farther away from the first rotor 1100 than the first support structure 3100.

[0075] The first support structure 3100 and the second support structure 3200 are used to support the first end 2100 and the second end 2200 respectively, so that the motor 100 can be installed; the first rotor 1100 can drive the pulley 4200 to rotate, and the pulley 4200 is farther away from the first rotor 1100 relative to the first support structure 3100, so that there is enough space for the pulley 4200 to move toward the first rotor 1100 to install / avoid components such as the inverter 9000.

[0076] Specifically, the first rotor 1100 , the stator 1300 and the second rotor 1200 are supported by the transmission shaft 2000 . The transmission shaft 2000 needs to pass through the first rotor 1100 , the stator 1300 and the second rotor 1200 , thereby supporting the first rotor 1100 , the stator 1300 and the second rotor 1200 .

[0077] There are various ways to support the first rotor 1100, the stator 1300, and the second rotor 1200 on the transmission shaft 2000. For example, the second rotor 1200 can be designed to be fixedly connected to the transmission shaft 2000. When the second rotor 1200 rotates, the second rotor 1200 needs to drive the transmission shaft 2000 to rotate, that is, the second rotor 1200 and the transmission shaft 2000 rotate synchronously. In other words, the connection between the second rotor 1200 and the transmission shaft 2000 needs to ensure that the two do not rotate relative to each other but rotate synchronously. There are various ways to connect the second rotor 1200 and the transmission shaft 2000. The second rotor 1200 and the transmission shaft 2000 can be connected by a slot and a pin to achieve mutual locking in the rotational direction to achieve synchronous rotation. Of course, other connection methods can also be used. Unlike the second rotor 1200, the first rotor 1100 is designed to rotate relative to the drive shaft 2000. This means that rotation of the drive shaft 2000 does not drive rotation of the first rotor 1100, and vice versa. This allows the second rotor 1200 to rotate the wind wheel 5200, while the first rotor 1100 drives the drum 5100, without interfering with each other. This example will be used below for illustration. Because the first rotor 1100 is rotatable relative to the drive shaft 2000, a structure such as a bearing 4130 can be positioned between the first rotor 1100 and the drive shaft 2000 to provide support and reduce frictional resistance.

[0078] The two ends of the transmission shaft 2000 are defined as a first end 2100 and a second end 2200, respectively. The first end 2100 exposes the first rotor 1100, while the second end 2200 exposes the second rotor 1200. When the motor 100 is installed, the first end 2100 and the second end 2200 need to be supported to support the entire motor 100. This is achieved specifically by a first support structure 3100 and a second support structure 3200. The first support structure 3100 supports the first end 2100, while the second support structure 3200 supports the second end 2200. It will be appreciated that, using the example of the first support structure 3100 supporting the first end 2100, it is sufficient to ensure that the weight of the motor 100 can be applied to the first support structure 3100 through the first end 2100. That is, the first support structure 3100 can be in direct or indirect contact with the first end 2100, and the same applies to the second support structure 3200.

[0079] As mentioned above, if the transmission shaft 2000 needs to rotate along with the rotation of the second rotor 1200, then, in some cases, the transmission shaft 2000 is designed to be rotatable relative to the first support structure 3100 and the second support structure 3200, so that the first support structure 3100 and the second support structure 3200 do not need to rotate synchronously.

[0080] For example, as shown in FIG7 , the first support structure 3100 is a first support wheel 3100, and the second support structure 3200 is a second support wheel 3200. When installing the motor 100, the first support wheel 3100 is placed at a corresponding position on the base 7000 of the clothing processing device and is restrained, and the second support wheel 3200 is placed at a corresponding position on the base 7000 of the clothing processing device and is restrained. The base 7000 supports the first support wheel 3100 and the second support wheel 3200, and the first rotor 1100, the stator 1300, and the second rotor 1200 are suspended in the air, thereby achieving installation support for the motor 100. When the motor 100 is operating, the first support wheel 3100 and the second support wheel 3200 are fixed, while the transmission shaft 2000 can rotate relative to the first support wheel 3100 and the second support wheel 3200.

[0081] The second rotor 1200 is used to drive the wind wheel 5200 to rotate. The second rotor 1200 and the wind wheel 5200 can be directly driven or indirectly driven. As mentioned above, the second rotor 1200 can drive the transmission shaft 2000 to rotate, so the wind wheel 5200 can be installed on the second end 2200. When the second rotor 1200 rotates, the second rotor 1200 drives the transmission shaft 2000 to rotate, and then drives the wind wheel 5200 to rotate, thereby realizing the transmission of airflow.

[0082] Different from the wind wheel 5200 , the driving of the drum 5100 is achieved through the cooperation between the first rotor 1100 and the pulley 4200 .

[0083] The pulley 4200 is configured to be rotatable. For example, the pulley 4200 is fixed to the stator 1300. It is understood that the pulley 4200 can be directly or indirectly disposed on the stator 1300. When the first rotor 1100 rotates, the first rotor 1100 drives the pulley 4200 to rotate. The first rotor 1100 can directly or indirectly drive the pulley 4200 to rotate. When the pulley 4200 rotates, the pulley 4200 drives the drum 5100 to rotate via the first transmission belt 4300.

[0084] It is understood that in the related art dual-rotor motor 100, components such as the inverter 9000 are positioned close to the motor 100 (the first rotor 1100, the stator 1300, and the second rotor 1200). If the pulley 4200 is closer to the first rotor 1100 than the first support structure 3100, the pulley 4200 may easily interfere with the inverter 9000 and other components. To this end, in this embodiment, the pulley 4200 and the first support structure 3100 are positioned on the same side of the first rotor 1100. The so-called same side defines a plane that passes through the first rotor 1100 and is perpendicular to the rotation axis of the first rotor 1100, and the pulley 4200 and the first support structure 3100 are located on the same side of the plane. In conjunction with the orientation shown in FIG6, the pulley 4200 and the first support structure 3100 are both located on the front side of the first rotor 1100. Moreover, the pulley 4200 is farther away from the first rotor 1100 relative to the first support structure 3100, that is, the pulley 4200 and the first support structure 3100 are a certain distance apart along the axial direction of the transmission shaft 2000, so that the space on one side of the pulley 4200 is larger. Combined with the orientation shown in Figure 6, the first rotor 1100 is in front and the second rotor 1200 is in the back, that is to say, there is a larger space behind the pulley 4200 to place / avoid components such as the inverter 9000. Components such as the inverter 9000 can be arranged close to the motor 100 (the first rotor 1100, the stator 1300 and the second rotor 1200) without interfering with the pulley 4200, thereby more effectively utilizing the space of the base 7000 of the clothing processing device.

[0085] As shown in conjunction with Figures 6 and 7, in some embodiments of the present application, the first rotor 1100 is designed to rotate relative to the transmission shaft 2000, that is, the rotation of the first rotor 1100 does not drive the transmission shaft 2000 to rotate, and the rotation of the transmission shaft 2000 does not drive the first rotor 1100 to rotate. The motor 100 also includes a sleeve 4100, which is sleeved onto the first end 2100 of the transmission shaft 2000 and is fixedly connected to the first rotor 1100 so that it can rotate with the rotation of the first rotor 1100. The sleeve 4100 also needs to be rotatable relative to the transmission shaft 2000 so that the rotation of the sleeve 4100 driven by the first rotor 1100 is not affected by the rotation of the transmission shaft 2000. At the same time, the first support structure 3100 needs to be sleeved with a shaft sleeve 4100, that is, the shaft sleeve 4100 passes through the first support structure 3100 from the first rotor 1100, so that the first support structure 3100 supports the shaft sleeve 4100, thereby supporting the first end 2100 through the shaft sleeve 4100, and then supporting the motor 100. In this way, it can be ensured that when the pulley 4200 is away from the first rotor 1100 relative to the first support structure 3100, the second transmission belt 4400 and the shaft sleeve 4100 can cooperate with each other to realize the first rotor 1100 to drive the pulley 4200 to rotate.

[0086] The sleeve 4100 is mounted on the first rotor 1100 and is fixedly connected to the first rotor 1100. When the first rotor 1100 rotates, the first rotor 1100 drives the sleeve 4100 to rotate synchronously. A second transmission belt 4400 is used to connect the sleeve 4100 to the pulley 4200. When the first rotor 1100 rotates, the first rotor 1100 drives the sleeve 4100, which in turn drives the second transmission belt 4400. This in turn drives the pulley 4200 via the second transmission belt 4400, which in turn drives the drum 5100 via the first transmission belt 4300. The coordination of the sleeve 4100 and the pulley 4200 facilitates power transmission to the drum 5100. The diameters of the sleeve 4100 and the pulley 4200 can be adjusted to meet varying speed requirements.

[0087] For example, the second transmission belt 4400 surrounds the corresponding position of the sleeve 4100 and the corresponding position of the pulley 4200. When the sleeve 4100 rotates, the pulley 4200 can be driven to rotate through the second transmission belt 4400. The first transmission belt 4300 surrounds the corresponding position of the pulley 4200 and the corresponding position of the roller 5100. When the pulley 4200 rotates, the roller 5100 can be driven to rotate through the first transmission belt 4300.

[0088] More specifically, the sleeve 4100 has a first position 4110 and a second position 4120 arranged alternately, the first position 4110 is closer to the first rotor 1100, and the second position 4120 is farther away from the first rotor 1100 relative to the first position 4110, the first support structure 3100 is specifically sleeved on the first position 4110, and the second transmission belt 4400 is connected to the second position 4120, and the pulley 4200 corresponds to the second position 4120 in its radial direction.

[0089] It is understood that the sleeve 4100 needs to rotate with the first rotor 1100, and the first support structure 3100 mainly plays a supporting role. The first support structure 3100 does not need to rotate with the rotation of the sleeve 4100. To this end, the sleeve 4100 is designed to be rotatable relative to the first support structure 3100. That is, after the motor 100 is installed, the first support structure 3100 can be stationary, while the sleeve 4100 can rotate with the rotation of the first rotor 1100. A structure such as a bearing 4130 can be provided between the sleeve 4100 and the first support structure 3100 to reduce friction.

[0090] Since the sleeve 4100 needs to rotate relative to the drive shaft 2000, and the first support structure 3100 is sleeved on the sleeve 4100, the support for the first end 2100 is achieved through the sleeve 4100. For this reason, in combination with Figure 7, in some embodiments of the present application, the motor 100 also includes a bearing 4130, and the bearing 4130 is set on the sleeve 4100. The sleeve 4100 is sleeved on the drive shaft 2000 through the bearing 4130, that is, when the sleeve 4100 is sleeved on the drive shaft 2000, the bearing 4130 contacts the drive shaft 2000, thereby achieving support for the first end 2100 through the first support structure 3100. At the same time, through the setting of the bearing 4130, it can be ensured that the sleeve 4100 and the drive shaft 2000 can rotate relative to each other to reduce friction resistance.

[0091] 6 and 7 , in some embodiments of the present application, the motor 100 further includes a connecting shaft 4210, which is connected to the stator 1300, and a pulley 4200 is disposed on the connecting shaft 4210 and rotatable relative to the connecting shaft 4210. Through the setting of the connecting shaft 4210, support is provided for the pulley 4200 to be further away from the first rotor 1100 relative to the first support structure 3100.

[0092] Specifically, in order to ensure that the pulley 4200 is further away from the first rotor 1100 relative to the first support structure 3100, in this embodiment, a connecting shaft 4210 is provided, one end of the connecting shaft 4210 is fixed on the stator 1300, and the other end of the connecting shaft 4210 is rotatably provided thereon, and the pulley 4200 and the connecting shaft 4210 form a cantilever structure, thereby ensuring that the pulley 4200 is further away from the first rotor 1100 relative to the first support structure 3100.

[0093] Furthermore, in combination with what is shown in FIG7 , in some embodiments of the present application, the connecting shaft 4210 extends a certain distance along the axial direction of the transmission shaft 2000 , thereby reducing the structural complexity of the connecting shaft 4210 and reducing the space occupied by the connecting shaft 4210 .

[0094] Specifically, the connecting shaft 4210 extends along the axial direction of the transmission shaft 2000. That is, the connecting shaft 4210 is substantially straight along the axial direction of the transmission shaft 2000 and is approximately balanced with the transmission shaft 2000. This reduces the space occupied by the connecting shaft 4210 and simplifies the structure. One end of the connecting shaft 4210 is fixedly connected to the stator 1300 and extends a certain distance from the stator 1300 along the axial direction of the transmission shaft 2000. The wind wheel 5200 is rotatably mounted on the other end of the connecting shaft 4210.

[0095] 6 and 7 , in some embodiments of the present application, the motor 100 further includes a reinforcement portion 1310 , which is disposed on the stator 1300 , and the reinforcement portion 1310 extends from the stator 1300 in a radial direction of the first rotor 1100 to support the connecting shaft 4210 , thereby enhancing the stability of the connecting shaft 4210 .

[0096] As mentioned above, the connecting shaft 4210 and the pulley 4200 form a cantilever structure, which is unstable. Therefore, in this embodiment, a reinforcement portion 1310 is provided on the stator 1300, and the reinforcement portion 1310 extends from the stator 1300 to the radial direction of the first rotor 1100. In this way, while ensuring that the pulley 4200 is away from the first rotor 1100, the reinforcement portion 1310 can strengthen the support of the connecting shaft 4210, thereby ensuring the stability of the connecting shaft 4210 and the pulley 4200.

[0097] The reinforcement portion 1310 can be a part of the structure of the stator 1300 (such as being integrated with part of the stator 1300), or it can be fixed to the stator 1300 through connection means (such as being fixed to the stator 1300 by screw connection, welding, etc.), and can be designed according to actual conditions.

[0098] It is understood that there are various ways for the reinforcing portion 1310 to support the connecting shaft 4210, as long as interaction is achieved between the reinforcing portion 1310 and the connecting shaft 4210, that is, when the connecting shaft 4210 deflects in a certain direction, the reinforcing portion 1310 can suppress the deflection of the connecting shaft 4210. As shown in Figures 6 and 7, in some embodiments of the present application, the connecting shaft 4210 passes through the reinforcing portion 1310. In this way, the reinforcing portion 1310 can form a constraint on the connecting shaft 4210 in the circumferential direction of the connecting shaft 4210, which not only facilitates the cooperation between the connecting shaft 4210 and the reinforcing portion 1310, but also facilitates the support of the connecting shaft 4210 by the reinforcing portion 1310.

[0099] As shown in FIG6 , in some embodiments of the present application, the connecting shaft 4210 is provided with a lug 6000 . The lug 6000 is provided between the pulley 4200 and the first rotor 1100 . The lug 6000 is used for hanging the spring 8000 so as to be pulled. It is understood that since the pulley 4200 is connected to the drum 5100 via the first transmission belt 4300, and since the motor 100 and the drum 5100 are two different components, to ensure the tautness of the first transmission belt 4300, a hook 6000 is provided on the connecting shaft 4210. The hook 6000 is suspended by a spring 8000 and pulled by the spring 8000, thereby tightening the first transmission belt 4300 and preventing it from loosening. For example, one end of the spring 8000 is suspended on the hook 6000, and the other end of the spring 8000 is connected to the base 7000 of the laundry processing device. When the spring 8000 pulls the hook 6000, it pulls the connecting shaft 4210. Since the pulley 4200 is further away from the first rotor 1100, there is more space behind the pulley 4200 (as shown in FIG. 6 ) to provide the hook 6000, thereby avoiding interference between the components. It is understandable that the hanging ear 6000 can also be set on the reinforcement part 1310, as shown in Figure 8, which has similar technical effects and will not be repeated.

[0100] As shown in FIG7 , in some embodiments of the present application, the second support structure 3200 is sleeved onto the second end 2200 of the transmission shaft 2000 to support the second end 2200. Furthermore, by designing the transmission shaft 2000 to be rotatable relative to the second support structure 3200, the second support structure 3200 is prevented from rotating with the rotation of the transmission shaft 2000, and the second support structure 3200 serves more as a support. It is understood that a structure similar to the bearing 4130 can be designed between the second support structure 3200 and the transmission shaft 2000 to reduce friction.

[0101] The second aspect of the present application discloses a clothing processing device. As shown in Figure 1, the clothing processing device includes a base 7000 and the above-mentioned motor 100. The motor 100 is installed on the base 7000. The motor 100 includes a first rotor 1100, a stator 1300 and a second rotor 1200. The first rotor 1100 is arranged on one side of the stator 1300, and the second rotor 1200 is arranged on the other side of the stator 1300, so that the stator 1300 is between the first rotor 1100 and the second rotor 1200, and the stator 1300 is provided with a limiting structure 1320. The limiting structure 1320 is arranged alternately with the base 7000. The limiting structure 1320 is used to follow the stator 1300 to rotate and abut against the base 7000 when the stator 1300 rotates. It can be understood that the clothing processing device includes the motor 100 of the above embodiment, and the base 7000 of the clothing processing device of this embodiment adopts the technical solution of the above embodiment, so it at least has the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0102] Furthermore, as shown in FIG. 2 , in some embodiments of the present application, the clothing processing device further includes a sensor 7200 . A gap 7100 is formed between the base 7000 and the limiting structure 1320 , and the sensor 7200 is disposed in the gap 7100 . When the stator 1300 loses its restraint and rotates, the stator 1300 abuts the base 7000 . Simultaneously, the rotation of the stator 1300 triggers the sensor 7200 . For example, the sensor 7200 is a microswitch. The rotation of the stator 1300 causes the limiting structure 1320 to contact the microswitch, which connects a circuit. This connection of the circuit causes the clothing processing device to output an error message, thereby alerting the user to a fault and controlling the motor 100 to shut down based on the error message. Of course, the sensor 7200 is not limited to a microswitch and can also be other types of components. It is understood that the presence of the gap 7100 also reduces the vibration transmitted from the motor 100 to the base 7000, thereby reducing noise.

[0103] A third aspect of the present application discloses a method for controlling a clothes processing device. As shown in FIG9 , the method for controlling a clothes processing device includes the following steps:

[0104] S10: Control the compressor to start.

[0105] The clothing treatment equipment is a heat pump type clothing treatment equipment, which heats the air flow by running the heat pump system. Generally speaking, the heat pump system includes a compressor, an evaporator and a condenser. Starting the compressor can drive the flow of refrigerant to realize the refrigerant circulation. The air flow can exchange heat through the condenser and become a heated air flow.

[0106] S20: Control the first rotor 1100 to rotate forward and reverse within a first preset time.

[0107] To improve the drying effect of clothes, the first rotor 1100 rotates forward and reverse within a first preset time, thereby driving the drum 5100 to rotate forward and reverse within the first preset time, causing the clothes to tumble within the drum 5100. For example, within the first preset time, the first rotor 1100 rotates forward for 10 minutes and then reverse for 15 seconds, and so on.

[0108] S30: Control the second rotor 1200 to rotate forward within a second preset time.

[0109] The forward rotation of the second rotor 1200 drives the impeller 5200, which in turn draws air into the drum 5100. As the drum 5100 rotates, the clothes are dried. Because the first and second rotors 1100 and 1200 are controlled separately, the forward and reverse rotation of the first rotor 1100 does not affect the rotation of the second rotor 1200, and thus does not affect the delivery of air.

[0110] S40: Obtain the internal air humidity of the drum 5100, and control the compressor to stop when the humidity reaches a preset threshold.

[0111] After the clothes processing device has dried clothes for a period of time, it is necessary to detect the humidity of the air inside the drum 5100 to determine whether the clothes are dried. It is understandable that the air inside the drum 5100 can be detected directly inside the drum 5100, or the air inside the drum 5100 can be discharged from the drum 5100 before detection (such as setting a sensor at the air outlet of the drum 5100 for detection). When the clothes processing device leaves the factory, a humidity threshold for drying certain clothes will be pre-set. Based on the comparison between the currently detected humidity and the preset threshold, the compressor can be controlled to stop when the humidity reaches the preset threshold.

[0112] As shown in FIG10 , in some embodiments of the present application, the method for controlling a laundry processing device further includes the following steps:

[0113] S50: After the compressor is controlled to stop, the motor 100 is continued to be controlled to run for a third preset time or when the air outlet temperature of the drum 5100 reaches a preset threshold, the motor 100 is controlled to stop.

[0114] It is understandable that when the compressor stops, the condenser still has residual heat, and the temperature of the clothes is relatively high at this time. Therefore, after the compressor stops, the motor 100 still needs to run for a third preset time, that is, at this time the first rotor 1100 and the second rotor 1200 still need to rotate until the end of the third preset time. At this time, the temperature of the air flow input into the drum 5100 gradually decreases, thereby cooling the clothes and avoiding overheating of the clothes and reducing the user experience.

[0115] Of course, it is also possible to determine whether to control the motor 100 to shut down based on the air outlet temperature of the drum 5100. Since the temperature of the air flow entering the drum 5100 gradually decreases, the air flow discharged from the drum 5100 also takes away the heat of the clothes, that is, the temperature of the air flow discharged from the drum 5100 also gradually decreases. By detecting the temperature of the exhaust air flow (air outlet temperature), when it reaches the preset threshold, the motor 100 can be controlled to shut down.

[0116] For example, the third preset time is 2 minutes, and the motor 100 continues to run for 2 minutes after the compressor stops before being controlled to stop, or the motor 100 is controlled to stop when the outlet air temperature is lower than 50°C.

[0117] As shown in FIG11 , in some embodiments of the present application, the method for controlling a laundry processing device further includes the following steps:

[0118] S60: Before starting the compressor, control the first rotor 1100 to rotate forward and reverse within a fourth preset time, where the fourth preset time is less than the first preset time. This step allows the laundry to be shaken and weighed before starting the compressor, providing a basis for setting subsequent conditions. For example, if the fourth preset time is 1 minute, the first rotor 1100 rotates forward for 15 seconds and then reverse for 15 seconds, and so on.

[0119] As shown in FIG12 , in some embodiments of the present application, the method for controlling a laundry processing device further includes the following steps:

[0120] Before starting the motor 100, the status of the sensor 7200 is obtained. When the sensor 7200 is in the triggered state, an error message is output, and the motor 100 is not controlled to start. When the sensor 7200 is in the non-triggered state, the motor 100 is controlled to start (including controlling the rotation of the first rotor 1100 and / or the second rotor 1200). This configuration ensures that the motor 100 is in the correct installation position to avoid causing further damage. After starting the motor 100, the status of the sensor 7200 is obtained. When the sensor 7200 is in the triggered state, an error message is output, and the motor 100 is controlled to stop. When the sensor 7200 is in the non-triggered state, the motor 100 is kept running until the compressor stops and the air outlet temperature of the drum 5100 reaches a preset threshold or the motor 100 has run for a third preset time. Finally, the motor 100 is controlled to stop. This ensures that whether the motor 100 has a fault can be detected in a timely manner during the drying process.

[0121] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A laundry treatment device, wherein, It includes a base and a motor, wherein the motor is mounted on the base, and the motor includes: The first rotor; a second rotor; and The stator is arranged between the first rotor and the second rotor. The stator is provided with a limiting structure. The limiting structure and the base are arranged alternately. The limiting structure is suitable for being abutted by the base when the stator rotates.

2. The laundry treating apparatus according to claim 1, wherein, The limiting structure is protrudingly arranged on the surface of the stator.

3. The laundry treatment device according to claim 2, wherein, The limiting structure is arranged at the bottom of the stator.

4. The laundry treating apparatus according to any one of claims 1 to 3, wherein, The limiting structure includes a first corner portion, a second corner portion and a flat plate portion, wherein the first corner portion is arranged on one side of the central axis of the stator, the second corner portion is arranged on the other side of the central axis of the stator, and the flat plate portion is arranged between the first corner portion and the second corner portion.

5. The laundry treating apparatus according to any one of claims 1 to 4, wherein, The motor also includes: A transmission shaft, passing through the stator, the first rotor and the second rotor, the transmission shaft having a first end exposed to the first rotor and a second end exposed to the second rotor; a first support structure adapted to support the first end; a second support structure adapted to support the second end; and The first rotor is suitable for driving the pulley to rotate, and the pulley is suitable for being connected to the roller through the first transmission belt to drive the roller to rotate; the pulley and the first supporting structure are arranged on the same side of the first rotor, and along the axial direction of the transmission shaft, the pulley is away from the first rotor relative to the first supporting structure.

6. The laundry treating apparatus according to claim 5, wherein, The first rotor is rotatably arranged relative to the transmission shaft; The motor further includes a shaft sleeve, which is sleeved on the first end and connected to the first rotor so as to follow the first rotor and rotate relative to the transmission shaft; The first supporting structure is sleeved with the shaft sleeve to support the first end, and the shaft sleeve is suitable for being connected to the pulley through a second transmission belt to drive the pulley to rotate.

7. The laundry treating apparatus according to claim 6, wherein, The shaft sleeve is rotatably arranged relative to the first supporting structure.

8. The laundry treatment device according to claim 6 or 7, wherein, The motor further comprises a bearing, and the shaft sleeve is provided with the transmission shaft through the bearing.

9. The laundry treatment device according to any one of claims 5 to 8, wherein, The motor further comprises a connecting shaft, the connecting shaft is connected to the stator, and the pulley is rotatably arranged on the connecting shaft.

10. The laundry treating apparatus according to claim 9, wherein, The motor further includes a reinforcing portion for supporting the connecting shaft, wherein the reinforcing portion is disposed on the stator and extends from the stator to a radial direction of the first rotor.

11. The laundry treatment device according to claim 9 or 10, wherein, The connecting shaft and / or the reinforcement part is provided with a hanging ear, the hanging ear is located between the first rotor and the pulley, and the hanging ear is suitable for being hung by a spring so as to be pulled.

12. The laundry treatment device according to any one of claims 5 to 11, wherein, The second rotor is connected to the transmission shaft to drive the transmission shaft to rotate, and the second end is suitable for being installed on the wind wheel to drive the wind wheel to rotate.

13. The laundry treating apparatus according to claim 12, wherein, The second supporting structure is sleeved on the second end to support the second end, and the transmission shaft is rotatably arranged relative to the second supporting structure.

14. The laundry treating apparatus according to any one of claims 1 to 13, wherein, A gap is provided between the limiting structure and the base, the clothing processing device further comprises a sensor, the sensor is provided in the gap, and the limiting structure is suitable for triggering the sensor when the stator rotates.

15. A method for controlling a laundry treatment device, based on the laundry treatment device according to any one of claims 1 to 14, wherein, The laundry processing device control method comprises the following steps: Control the compressor start; Controlling the first rotor to rotate forward and reverse within a first preset time; Controlling the second rotor to rotate forward within a second preset time; Obtain the internal air humidity of the drum, and control the compressor to stop when the humidity reaches a preset threshold.

16. The method for controlling a laundry treatment device according to claim 15, wherein, The control method of the clothing treatment device further includes the following steps: After controlling the compressor to stop and the motor continues to operate for a third preset time or when the outlet air temperature of the drum reaches a preset threshold, then control the motor to stop.

17. The method for controlling a laundry treating apparatus according to claim 15 or 16, wherein, The control method of the clothing treatment device further includes the following steps: Before controlling the compressor to start, control the first rotor to rotate forward and backward within a fourth preset time, and the fourth preset time is less than the first preset time.

18. The method for controlling a laundry treatment device according to any one of claims 15 to 17, wherein, The control method of the clothing treatment device further includes the following steps: Before the motor starts, obtain the state of the sensor. If the sensor is in a triggered state, output an error message and control the motor not to start. If the sensor is in a non-triggered state, control the motor to start; After the motor starts, obtain the state of the sensor. If the sensor is in a triggered state, output an error message and control the motor to stop. If the sensor is in a non-triggered state, control the motor to keep running until the motor continues to operate for a third preset time or the outlet air temperature of the drum reaches a preset threshold.

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