CN116377685A - Washing machine - Google Patents

Abstract

Embodiments of the present application provide a washing machine including: the drum assembly is used for accommodating clothes to be washed and comprises an inner impeller and an outer impeller, and the inner impeller and the outer impeller are respectively provided with a power bump at one side close to each other; the motor is used for driving the inner pulsator to rotate, and after the inner pulsator rotates by a preset rotation angle, the power protruding blocks of the inner pulsator are mutually abutted with the power protruding blocks of the outer pulsator so that the inner pulsator drives the outer pulsator to rotate; a controller configured to perform the steps of: acquiring a washing signal for representing washing of the clothes to be washed; determining a corresponding washing program in response to the washing signal; and controlling the rotation angle of the inner pulsator according to the washing program so as to control whether the outer pulsator rotates in the washing program. According to the technical scheme, the washing and cleaning process and the clothes overturning motion process of the washing machine when washing clothes can be distinguished by controlling the rotation angle of the inner impeller, so that the possibility of winding the clothes is reduced.

Description

Washing machine

Technical Field

The present application relates to the field of electromechanical control, and in particular, to a washing machine.

Background

With the continuous improvement of the living standard of people, the washing of clothes by a washing machine is a common clothes washing mode. In the related art, a washing machine generally adopts a single pulsator structure to generate friction between clothes and the clothes, between the drum wall of the inner drum and the pulsator by rotation of the single pulsator, thereby realizing washing and cleaning, and realizing overturning movement of the clothes by rotation. However, the single impeller structure drives clothes and clothes, the inner barrel wall and the impellers through rotation, and meanwhile the clothes are enabled to perform overturning movement, so that the clothes are wound in the washing process, and the winding is aggravated under the continuous rotation of the impellers.

Disclosure of Invention

In order to solve the technical problems, embodiments of the present application provide a washing machine.

According to an embodiment of the present application, there is provided a washing machine including: the drum assembly is used for accommodating clothes to be washed and comprises an inner impeller and an outer impeller, and the inner impeller and the outer impeller are respectively provided with a power bump at one side close to each other; the motor is used for driving the inner pulsator to rotate, and after the inner pulsator rotates by a preset rotation angle, the power protruding blocks of the inner pulsator are mutually abutted with the power protruding blocks of the outer pulsator so that the inner pulsator drives the outer pulsator to rotate; a controller configured to perform the steps of: acquiring a washing signal for representing washing of the clothes to be washed; determining a corresponding washing program in response to the washing signal; and controlling the rotation angle of the inner pulsator according to the washing program so as to control whether the outer pulsator rotates in the washing program.

In the washing machine provided by the embodiment of the application, the outer pulsator can be driven to rotate by the inner pulsator under the abutting of the two power lugs after the inner pulsator rotates by a preset rotation angle, so that the rotation angle of the inner pulsator can be controlled according to a washing program, when the rotation angle of the inner pulsator is smaller than the preset rotation angle, the outer pulsator does not rotate, friction between clothes and the inner pulsator is realized through the rotation of the inner pulsator by a small angle, even though the acting force of the pulsator for driving the clothes is weakened, the washing and cleaning functions are realized, and meanwhile the clothes are not easy to overturn; when the rotation angle of the inner pulsator is larger than the preset rotation angle, the inner pulsator rotates at a large angle to drive the outer pulsator to rotate, so that acting force and acting range of the pulsator for driving clothes are enlarged, overturning of the clothes is achieved, multi-angle washing is conveniently carried out on the clothes, and washing effect of the washing machine is enhanced.

In some embodiments of the present application, based on the foregoing, the controller is further configured to perform the steps of: acquiring a plurality of washing stages contained in a washing program; the inner pulsator is controlled to rotate in different washing stages according to respective corresponding preset driving angles, so that whether the outer pulsator rotates in different washing stages is controlled based on the magnitude relation between the preset driving angles and the preset rotating angles.

In some embodiments of the present application, based on the foregoing, the plurality of wash stages includes a target wash stage; in the target washing stage, the inner impeller rotates and the outer impeller stops rotating; the controller is further configured to perform the steps of: and in the target washing stage, circularly executing the step of controlling the switching of the rotation direction of the inner pulsator until the target washing stage is finished when the rotation angle of the inner pulsator in the current rotation direction is determined to reach the preset driving angle corresponding to the target washing stage.

In the washing machine provided by the embodiment of the application, if the inner pulsator continuously rotates in the same rotation direction according to the preset driving angle corresponding to the washing stage, the outer pulsator is still driven to rotate after the inner pulsator rotates for a plurality of times, so that the clothes are turned over, and therefore, when the rotation angle of the inner pulsator in the current rotation direction is determined to reach the preset driving angle corresponding to the target washing stage, the rotation direction of the inner pulsator is controlled to be switched, and the clothes are prevented from turning over in the target washing stage.

In some embodiments of the present application, based on the foregoing, the controller is further configured to perform the steps of: acquiring a preset driving time length corresponding to each washing stage; and controlling the inner pulsator to rotate in different washing stages according to the respective corresponding preset driving time length, so that the inner pulsator rotates to the respective corresponding preset driving angle in different washing stages.

In some embodiments of the present application, based on the foregoing, the controller is further configured to perform the steps of: determining a conversion stopping time length corresponding to each of the plurality of washing stages; the switching stopping time length represents the stopping time length required by the inner impeller to switch the rotating direction; and controlling the inner pulsator to reach preset forward and reverse rotation frequency in each washing stage according to the conversion stopping time.

In order to avoid frequent uninterrupted switching of the rotating direction of the motor in the working process, the washing machine provided by the embodiment of the application is damaged, so that the buffer effect is achieved when the motor is switched to the rotating direction by switching the stopping time length, and the service life of the motor is prolonged.

In some embodiments of the present application, based on the foregoing, the controller is further configured to perform the steps of: acquiring the corresponding rotating speeds of a plurality of washing stages of a washing program; the inner pulsator is controlled to rotate at corresponding rotational speeds in different washing stages, so that the rotational speeds of the outer pulsator in different washing stages are controlled.

In the washing machine provided by the embodiment of the application, the acting force generated by the pulsator driving the clothes at different rotating speeds is different, the inner pulsator is controlled to rotate at different washing stages according to corresponding rotating speeds, the phenomenon that the acting force generated by the inner pulsator in each washing stage is overlarge, the clothes are damaged or overturned is caused, and the clothes are wound is avoided.

In some embodiments of the present application, based on the foregoing solution, each washing stage includes a plurality of washing processes that are cyclically arranged, each washing process corresponding to a different preset driving angle and rotation speed, and the controller is further configured to perform the following steps: in each washing stage, the inner pulsator is controlled to circulate and rotate according to the preset driving angle and the preset rotating speed corresponding to each washing procedure

In some embodiments of the present application, based on the foregoing solution, a rubber member for damping vibration when abutting is provided on the power bump on the inner pulsator and/or the power bump on the outer pulsator.

In the washing machine provided by the embodiment of the application, through the rubber piece, abnormal sound emitted by the two power lugs during collision is reduced, and loss of the two power lugs during collision is reduced, so that the service life of the power lugs is prolonged.

In some embodiments of the present application, based on the foregoing solution, the rubber member is disposed on a side edge of the inner pulsator where the power protrusions on the outer pulsator abut against each other.

In the washing machine provided by the embodiment of the application, the rubber piece is arranged on the side edge of the power lug, so that the rubber piece achieves the purpose of damping when the two power lugs are mutually abutted, and meanwhile, the production cost of the washing machine is reduced.

In some embodiments of the present application, based on the foregoing solution, a shaft sliding key is threaded on a clutch shaft of the motor, an inner ring of the shaft sliding key is connected with the clutch shaft, and an outer ring of the shaft sliding key is connected with the outer pulsator.

In the washing machine provided by the embodiment of the application, the outer pulsator rotates around the clutch shaft of the motor through the shaft sliding key, and meanwhile, the outer pulsator is fixed through the shaft sliding key, so that the purpose of limiting the outer pulsator is achieved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

fig. 1 is a schematic structural view of a washing machine according to an embodiment of the present application.

Fig. 2 is a schematic diagram showing a connection between an inner pulsator and a motor according to an exemplary embodiment of the present application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

It should be noted that: references herein to "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Fig. 1 is a schematic view of a structure of a washing machine provided in an exemplary embodiment of the present application. As shown in fig. 1, the washing machine 10 includes a tub assembly 11, a motor 12, and a controller. The respective portions will be described one by one.

A drum assembly 11 for accommodating laundry to be washed.

In the embodiment of the present application, the barrel assembly 11 includes an inner barrel 13, an inner pulsator 14, and an outer pulsator 15. The inner tub 13 serves to provide a space for accommodating laundry to be washed. The inner pulsator 14 and the outer pulsator 15 are used for achieving the purposes of washing and cleaning by rotating to achieve friction between clothes in the inner drum 13, between the clothes and the wall of the inner drum 13 and between the clothes and the pulsator on one hand, and driving the clothes to perform overturning motion in a washing process on the other hand, so that the cleaning effect of the washing machine 10 on the clothes to be washed is improved.

And a motor 12 for driving the inner pulsator 14 to rotate.

In the embodiment of the present application, the motor 12 is fixedly connected with the inner pulsator 14 through the included clutch shaft 16, so that the inner pulsator 14 can rotate under the driving of the clutch shaft 16 operated by the motor 12. While the outer pulsator 15 in this application is an unpowered part. In order to make the motor 12 drive the outer pulsator 15 to rotate, referring to fig. 2, power lugs 17 are disposed on both the inner pulsator 14 and the outer pulsator 15, so that after the inner pulsator 14 rotates by a preset rotation angle, the power lugs 17 of the inner pulsator 14 and the power lugs 17 of the outer pulsator 15 abut against each other, thereby transmitting kinetic energy to the inner pulsator 14 driven by the motor 12, and further driving the outer pulsator 15 to rotate.

The preset rotation angle can be flexibly set according to the needs of the research personnel, and is not limited herein.

In addition, considering that the rotation of the outer pulsator 15 needs to transfer kinetic energy through the mutual abutment of the two power protrusions 17, in one example of the present application, the power protrusions 17 of the inner pulsator 14 and/or the power protrusions 17 on the outer pulsator 15 are provided with rubber members for damping when in abutment, so as to reduce abnormal sound emitted by the two power protrusions 17 when in collision, and simultaneously reduce loss of the two power protrusions 17 when in collision, thereby prolonging the service life of the power protrusions 17.

The rubber member may be flexibly disposed according to needs, and in one example, the rubber member may be wrapped on the power bump 17, so as to improve the buffering and damping effects of the rubber member. In another example, the rubber member may be disposed at the side edges of the inner pulsator 14 where the power protrusions 17 and 17 of the outer pulsator 15 abut against each other, so that the rubber member achieves the purpose of shock absorption while the two power protrusions 17 abut against each other, and the production cost of the washing machine 10 is reduced.

Referring to fig. 2, a clutch shaft 16 of the motor 12 is provided with a shaft slide key 18. The inner ring of the shaft sliding key 18 is connected with the clutch shaft 16, and the outer ring of the shaft sliding key 18 is connected with the outer pulsator 15. The outer pulsator 15 rotates around the clutch shaft 16 of the motor 12 through the shaft sliding key 18, and the outer pulsator 15 is fixed through the shaft sliding key 18, so that the purpose of limiting the outer pulsator 15 is achieved. In addition, in order to further limit the outer pulsator 15, the clutch shaft 16 passes through the outer pulsator 15 and is fixedly connected with the inner pulsator 14, so that the outer pulsator 15 is limited by the side wall of the inner pulsator 14, which is close to the motor 12.

A controller is electrically connected to the motor 12 to control the operation of the motor 12, i.e., to control the rotation of the inner pulsator 14. The controller is further configured to perform the steps of:

acquiring a washing signal for representing washing of the clothes to be washed;

determining a corresponding washing program in response to the washing signal;

and controlling the rotation angle of the inner pulsator according to the washing program so as to control whether the outer pulsator rotates in the washing program.

It should be noted that, in order to improve the cleaning effect of the washing machine 10 on the laundry, the manufacturer of the washing machine generally makes a specific washing program in advance according to different materials of the laundry, different stain types on the laundry or different amounts of the laundry, so that the user can select the washing program or the washing machine 10 can automatically select the washing program after detecting the laundry.

In embodiments of the present application, the controller may acquire a washing signal for characterizing washing of laundry to determine that the washing machine starts washing the laundry. Accordingly, the controller is responsive to the wash signal to determine a corresponding wash program.

The manner of determining the corresponding washing program may directly acquire the washing program selected by the user to take the selected washing program as the corresponding washing program. Or determining the washing program automatically selected by the washing machine according to different materials, stain types and amounts in the clothes to be washed, so as to take the automatically selected washing program as the corresponding washing program.

In the process of controlling friction between clothes, between clothes and the wall of the inner cylinder 13 and between clothes and the pulsator through rotation of the pulsator, the rotation angle of the pulsator in each washing process is different in order to avoid damage to the clothes, residue of clothes stains or entanglement of the clothes caused by the influence of the clothes materials, the clothes stains and the amount of the clothes in the washing process of the clothes. Meanwhile, the timing of performing washing and overturning motions of laundry in each washing process is different for different laundry materials, laundry stain types and laundry amounts.

In the embodiment of the present application, after the controller determines the corresponding washing procedure, the controller may control the rotation angle of the inner pulsator 14 according to the washing procedure, so as to control whether the outer pulsator 15 rotates in the washing procedure.

The mode of controlling the rotation angle of the inner impeller according to the washing program can be flexibly set according to the requirement. In one example, the rotation angle of the inner pulsator may be controlled according to the laundry material, the laundry stain type, and the laundry amount by determining the laundry material, the laundry stain type, and the laundry amount to which the washing course is directed.

In another example, in order to perform a sufficient washing of laundry, a washing program is generally provided with a plurality of washing stages to achieve different washing purposes. For example, a heating stage, a washing stage, a rinsing stage, a dehydrating stage, etc. The controller may determine a plurality of washing stages included in the washing program to control the rotation angle of the inner pulsator according to washing purposes of the plurality of washing stages.

In the process of controlling the rotation angle of the inner pulsator 14 according to the washing program, when the rotation angle of the inner pulsator 14 is smaller than a preset rotation angle, the outer pulsator 15 does not rotate, so that friction between clothes and the inner pulsator is realized through small-angle rotation of the inner pulsator, even if acting force of the pulsator for driving the clothes is reduced, a washing and cleaning function is realized, and meanwhile the clothes are not easy to overturn; when the rotation angle of the inner pulsator 14 is greater than the preset rotation angle, the inner pulsator 14 drives the outer pulsator 15 to rotate through large-angle rotation, so that the acting force and the acting range of the pulsator for driving clothes are enlarged, the overturning motion of the clothes is realized, the purposes of distinguishing the washing and the overturning motion of the clothes are achieved, and the probability of winding the clothes is reduced. Further, the inner pulsator 14 and the outer pulsator 15 can be controlled to rotate according to the material, the stain type and the number of the clothes or according to a plurality of washing stages, so that the washing effect of the washing machine 10 is improved, and meanwhile, the damage, the residual and the winding of the stains are further ensured in the washing process of the clothes.

In another exemplary embodiment, the controller is further configured to perform the steps of:

acquiring a plurality of washing stages contained in a washing program;

the inner pulsator is controlled to rotate in different washing stages according to respective corresponding preset driving angles, so that whether the outer pulsator rotates in different washing stages is controlled based on the magnitude relation between the preset driving angles and the preset rotating angles.

Firstly, it should be noted that the washing procedures corresponding to different clothes materials, different clothes stains and different clothes amounts are different, and correspondingly, a plurality of washing stages included in the washing procedures are also different. For example, when the fabric is soft, the stains on the fabric are light, or the number of the fabric is small, the heating stage for heating the washing water can be removed from the plurality of washing stages included in the washing process, and the washing times, the rinsing times or the dewatering times of the fabric are correspondingly reduced in the washing stage, the rinsing stage or the dewatering stage.

In embodiments of the present application, after determining the washing program, the controller may obtain a plurality of washing stages comprised by the washing program.

The manner of acquiring the plurality of washing stages included in the washing program may directly acquire the plurality of washing stages included in the washing program through recognition analysis, that is, the plurality of washing stages for washing laundry may be integrated in advance in the washing program.

In addition, the different washing stages comprise corresponding operation control parameters so as to achieve the washing purpose required by the current washing stage. The operation control parameters comprise water inlet control parameters, water discharge control parameters, impeller control parameters and the like.

In the embodiment of the present application, after a plurality of washing stages are acquired, the controller may control the inner pulsator 14 to rotate at respective corresponding preset driving angles in different washing stages, so as to control whether the outer pulsator 15 rotates in different washing stages based on a magnitude relation between the preset driving angles and the preset rotation angles.

The driving angle is an angle at which the clutch shaft 16 of the control motor 12 drives the inner pulsator 14 to rotate.

The controller controls the inner pulsator 14 to rotate at a corresponding preset driving angle in the washing stage, and in one example, the operation control parameter corresponding to the current washing stage may be obtained first to determine the pulsator control parameter including the preset driving angle from the operation control parameters, so as to control the operation of the motor 12 according to the preset driving angle, that is, to control the angle at which the motor 12 drives the inner pulsator 14 to rotate. Correspondingly, if the preset driving angle corresponding to the current washing stage is greater than the preset rotation angle, the outer pulsator 15 rotates in the current washing stage. In contrast, if the preset driving angle corresponding to the current washing stage is smaller than the preset rotation angle, the outer pulsator 15 does not rotate in the current washing stage.

For example, if the preset rotation angle is 30 °, the obtained washing program includes a first washing stage, a second washing stage and a third washing stage, and the preset driving angles corresponding to the first washing stage, the second washing stage and the third washing stage are 45 °, 15 ° and 50 ° respectively. That is, if the preset driving angle in the first washing stage and the third washing stage is greater than the preset rotation angle, the inner pulsator 14 is controlled to rotate at the respective corresponding preset driving angles in the different washing stages, and the outer pulsator 15 is controlled to rotate only in the first washing stage and the third washing stage, thereby performing the tumbling motion of the laundry; in the second washing stage, only the inner pulsator is controlled to rotate, and washing and cleaning of clothes are implemented.

Through the above embodiment, it is achieved that the rotation of the inner pulsator 14 is controlled while the rotation of the outer pulsator 15 is controlled in different washing stages, so that the washing machine 10 can more easily achieve a desired washing purpose in different washing stages, and the possibility of breakage, stain residue, and entanglement of laundry in different washing stages is reduced, thereby further improving the user satisfaction.

In another exemplary embodiment, the plurality of washing stages includes a target washing stage in which the inner pulsator rotates while the outer pulsator stops rotating; i.e. a washing stage of the plurality of washing stages in which the preset driving angle is smaller than the preset rotation angle, e.g. the second washing stage in the above example. For the target wash stage, the controller is further configured to perform the steps of:

and in the target washing stage, circularly executing the step of controlling the switching of the rotation direction of the inner pulsator until the target washing stage is finished when the rotation angle of the inner pulsator in the current rotation direction is determined to reach the preset driving angle corresponding to the target washing stage.

Because the inner pulsator 14 continuously rotates in the same rotation direction according to the preset driving angle corresponding to the washing stage, the outer pulsator 15 is still driven to rotate after the inner pulsator 14 rotates for a plurality of times, so that the clothes are turned over. Therefore, in the embodiment of the present application, in order to avoid the outer pulsator 15 rotating in the target washing stage, when it is determined that the rotation angle of the inner pulsator 14 in the current rotation direction reaches the preset driving angle corresponding to the target washing stage, the step of switching the rotation direction of the inner pulsator 14 is controlled to rotate in the opposite direction whenever the rotation angle of the inner pulsator 14 in the target washing stage reaches the corresponding preset rotation angle, so that the outer pulsator 15 cannot rotate while rotating according to the target preset angle until the target washing stage is finished, and further, the force provided by the pulsator in the target washing stage is ensured not to easily cause the laundry to overturn, so that the laundry is entangled.

In addition, in other washing stages, besides the target washing stage, the above embodiment may be adopted to control, that is, in different washing stages, the step of controlling to switch the rotation direction of the inner pulsator 14 is performed in a cyclic manner until the current washing stage is completed when it is determined that the rotation angle of the inner pulsator 14 in the current rotation direction reaches the preset driving angle corresponding to the current washing stage. Therefore, in different washing stages, the inner pulsator 14 is prevented from continuously rotating in the same rotation direction according to the preset driving angle corresponding to the washing stage, so that the rotation angle of the outer pulsator 15 is increased, the acting force provided by the pulsator in the current washing stage is increased, and the clothes are prevented from being damaged or entangled.

In another exemplary embodiment, the controller is further configured to perform the steps of:

acquiring a preset driving time length corresponding to each washing stage;

and controlling the inner pulsator to rotate in different washing stages according to the respective corresponding preset driving time length, so that the inner pulsator rotates to the respective corresponding preset driving angle in different washing stages.

The driving time is the time for the controller to drive the motor to run in the washing stage. In addition, the longer the driving time period, the larger the angle at which the motor 12 rotates the inner pulsator 14.

In the embodiment of the present application, after the controller obtains a plurality of washing stages included in the washing program, the controller may further obtain a preset driving duration corresponding to each washing stage.

The manner of obtaining the preset driving time length corresponding to each washing stage is flexibly set according to the need, and in one example, the pulsator control parameters including the preset driving time length can be obtained from the operation control parameters of each washing stage, so that the preset driving time length can be directly determined from the pulsator control parameters. In another example, the pulsator control parameter including the preset driving angle may be obtained from the operation control parameters of each washing stage to determine the preset driving time period corresponding to each washing stage based on the conversion relationship between the driving angle and the driving time period.

In the embodiment of the present application, after obtaining the preset driving time period corresponding to each washing stage, the controller may control the inner pulsator 14 to rotate in different washing stages according to the respective preset driving time periods, so that the inner pulsator 14 rotates to the respective corresponding preset driving angles in different washing stages.

In one example, a timer may be set in the washing machine 10 to start timing the driving time period by the timer when the driving motor 12 drives the inner pulsator 14 to rotate in the current washing stage, and when the timing time period reaches the preset driving time period, the controlling motor 12 stops driving the inner pulsator 14 to rotate, so that the inner pulsator 14 rotates to a preset driving angle corresponding to the current washing stage.

In another exemplary embodiment, the controller is further configured to perform the steps of:

determining a conversion stopping time length corresponding to each of the plurality of washing stages;

and controlling the inner pulsator to reach preset forward and reverse rotation frequency in each washing stage according to the conversion stopping time.

The switching stopping time length represents the stopping time length required by the inner pulsator to switch the rotating direction.

Because the motor 12 is easy to shorten the service life of the motor 12 and even damage the motor 12 if the motor 12 is frequently and continuously switched in rotation direction during the working process, in the embodiment of the application, the controller can determine the respective corresponding switching stop time periods of the plurality of washing stages, and then control the inner pulsator 14 to reach the preset forward and reverse rotation frequency in each washing stage according to the switching stop time periods. On the one hand, the buffer function is realized when the motor 12 switches the rotation direction by switching the stop time length, so as to protect the motor 12 and prolong the service time of the motor 12; on the other hand, the aim of adjusting the washing capacity of each washing stage can be achieved by adjusting the forward and reverse rotation frequency reached by the conversion stopping time corresponding to each washing stage, namely, the faster the forward and reverse rotation frequency corresponding to the washing stage is, the stronger the corresponding washing capacity for washing clothes is.

In another exemplary embodiment, the controller is further configured to perform the steps of:

acquiring the corresponding rotating speeds of a plurality of washing stages of a washing program;

the inner pulsator is controlled to rotate at corresponding rotational speeds in different washing stages.

It should be noted that, in the washing machine 10, the magnitude of the force generated by the pulsator driving the laundry at different rotational speeds is different, and accordingly, the cleaning effect of the pulsator at different rotational speeds is also different.

In the embodiment of the application, after the corresponding washing program is determined, the respective rotation speeds of a plurality of washing stages of the washing program can be obtained first, and then the inner pulsator 14 is controlled to rotate at the corresponding rotation speeds in different washing stages, so as to control the acting force generated by the inner pulsator 14 to drive the clothes, and avoid the damage or the overturning movement of the clothes caused by the overlarge acting force, so that the clothes are wound.

In addition, because the outer pulsator 15 in the application rotates under the drive of the inner pulsator 14, the inner pulsator 14 is controlled to rotate at corresponding rotating speeds in different washing stages, and the purpose of controlling the rotating speeds of the outer pulsator 15 in different washing stages can be achieved, so that acting force generated by the outer pulsator 15 driving clothes is further controlled, the capacity of the pulsator driving the clothes to perform overturning motion is controlled, meanwhile, the cleaning effect of the washing machine on the clothes can be improved, and the using satisfaction degree of a user on the washing machine 10 is further improved.

In another exemplary embodiment, each washing stage includes a plurality of washing processes arranged in a cycle, each washing process corresponding to a different preset driving angle and rotation speed. The controller is further configured to perform the following steps for a plurality of wash processes:

in each washing stage, the inner pulsator is controlled to rotate circularly according to a preset driving angle and a preset rotating speed corresponding to each washing procedure.

It should be noted that, in order to better achieve the desired washing purpose in each washing stage, a plurality of washing steps may be cyclically provided in each washing stage. The washing process of the laundry machine 10 may be further refined through a plurality of washing processes to obtain a better washing effect.

In the embodiment of the present application, after the controller obtains a plurality of washing stages included in the washing program, the controller may control the inner pulsator 14 to rotate in a circulating manner according to the preset driving angle and the rotation speed corresponding to each washing process in each washing stage, so that the inner pulsator 14 drives the laundry to rotate according to the preset driving angle and the rotation speed in each washing process, so as to generate a corresponding acting force to wash the laundry, thereby obtaining a better washing effect in each washing stage, and further improving the washing capacity of the washing machine 10.

In addition, in each washing stage, the outer pulsator 15 can be controlled to rotate according to the preset driving angle and the rotation speed corresponding to each washing procedure, that is, when the preset driving angle corresponding to the washing procedure is greater than the preset rotation angle, the inner pulsator 14 can drive the outer pulsator 15 to rotate according to the rotation speed corresponding to the current washing procedure, so as to implement the clothes overturning motion, and further improve the washing capacity of the current washing procedure.

For example, when the washing stage includes a first washing process, a second washing process, and a third washing process that are circularly arranged, wherein the preset rotation angles and rotation speeds of the first washing process, the second washing process, and the third washing process are respectively (180 °,300 rpm), (270 °,400 rpm), (720 °,500 rpm); if the preset rotation angle is 360 °, when the inner pulsator 14 is controlled to rotate according to the preset rotation angle and the rotation speed corresponding to the first washing process, the second washing process and the third washing process, the outer pulsator 15 is driven to rotate according to the preset rotation angle and the rotation speed corresponding to the third washing process every time the third washing process is entered, so that higher washing capacity is obtained in the third washing process and the clothes are turned over, so that the washing process of the clothes is completed, and the washing effect of the current washing stage is further improved.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A washing machine, comprising:

the drum assembly is used for accommodating clothes to be washed and comprises an inner impeller and an outer impeller, and the inner impeller and the outer impeller are respectively provided with a power lug at one side close to each other;

the motor is used for driving the inner pulsator to rotate, and after the inner pulsator rotates by a preset rotation angle, the power protruding blocks of the inner pulsator are mutually abutted with the power protruding blocks of the outer pulsator so that the inner pulsator drives the outer pulsator to rotate;

a controller configured to perform the steps of:

acquiring a washing signal for representing washing of the clothes to be washed;

determining a corresponding wash program in response to the wash signal;

and controlling the rotation angle of the inner impeller according to the washing program so as to control whether the outer impeller rotates in the washing program.

2. The washing machine of claim 1, wherein the controller is further configured to perform the steps of:

acquiring a plurality of washing stages comprised by the washing program;

and controlling the inner pulsator to rotate in different washing stages according to respective corresponding preset driving angles, so as to control whether the outer pulsator rotates in different washing stages or not based on the magnitude relation between the preset driving angles and the preset rotating angles.

3. The washing machine as claimed in claim 2, wherein the plurality of washing stages includes a target washing stage in which the outer pulsator stops rotating while the inner pulsator rotates; the controller is further configured to perform the steps of:

and in the target washing stage, circularly executing the step of controlling to switch the rotation direction of the inner impeller until the target washing stage is finished when the rotation angle of the inner impeller in the current rotation direction is determined to reach the preset driving angle corresponding to the target washing stage.

4. The washing machine of claim 2, wherein the controller is further configured to perform the steps of:

acquiring a preset driving time length corresponding to each washing stage;

and controlling the inner pulsator to rotate in different washing stages according to respective corresponding preset driving time lengths, so that the inner pulsator rotates to respective corresponding preset driving angles in different washing stages.

5. The washing machine of claim 2, wherein the controller is further configured to perform the steps of:

determining a transition stop duration corresponding to each of the plurality of washing stages; the conversion stopping time length represents the stopping time length required by the inner impeller to switch the rotating direction;

and controlling the inner pulsator to reach preset forward and reverse rotation frequency in each washing stage according to the conversion stopping time.

6. The washing machine of claim 1, wherein the controller is further configured to perform the steps of:

acquiring the corresponding rotating speeds of a plurality of washing stages of the washing program;

and controlling the inner pulsator to rotate at corresponding rotating speeds in different washing stages so as to control the rotating speeds of the outer pulsator in different washing stages.

7. The washing machine of claim 2, wherein each washing stage includes a plurality of washing steps arranged in a cycle, each washing step corresponding to a different preset drive angle and speed, the controller being further configured to perform the steps of:

and in each washing stage, controlling the inner impeller to rotate circularly according to a preset driving angle and a preset rotating speed corresponding to each washing procedure.

8. A washing machine as claimed in claim 1, characterized in that:

and rubber parts for damping during abutting are arranged on the power protruding blocks on the inner pulsator and/or the power protruding blocks on the outer pulsator.

9. The washing machine as claimed in claim 8, wherein:

the rubber piece is arranged on the side edges of the power protruding blocks of the inner impeller and the power protruding blocks of the outer impeller, which are mutually abutted.

10. A washing machine as claimed in claim 1, characterized in that:

the clutch shaft of the motor is provided with a shaft sliding key in a penetrating mode, an inner ring of the shaft sliding key is connected with the clutch shaft, and an outer ring of the shaft sliding key is connected with the outer impeller.

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