CN114941230A

CN114941230A - Washing machine and control method thereof

Info

Publication number: CN114941230A
Application number: CN202210772794.8A
Authority: CN
Inventors: 孙树波
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-08-26

Abstract

The embodiment of the application provides a washing machine and a control method thereof, and particularly relates to the technical field of washing machines. The washing machine includes: a rectangular box body; the cylinder assembly is arranged in the box body; the four safety switches correspond to the four side walls in the box body one by one; the safety switch comprises at least one wireless signal transmitter and wireless signal receivers corresponding to the at least one wireless signal transmitter one to one, and each wireless signal transmitter and the corresponding wireless signal receiver are oppositely arranged at two ends of the corresponding side wall of the safety switch; the direction of the signal sent by each wireless signal transmitter is parallel to the plane where the side wall corresponding to the safety switch is located.

Description

Washing machine and control method thereof

Technical Field

The application relates to the technical field of washing machines, in particular to a washing machine and a control method thereof.

Background

Washing machines generally comprise a cabinet and a drum assembly located within the cabinet. In the dehydration process, because the clothes are placed irregularly, the cylinder assembly can generate abnormal vibration due to unbalanced stress, and then the case is impacted. The long-term impact of the cartridge assembly against the cabinet not only makes an unpleasant noise, but may also cause mechanical failure or dislodgement of the washing machine.

At present, in order to avoid the occurrence of the above situations, a mechanical safety switch is usually arranged on one side of a box body of the washing machine for monitoring, and when the barrel assembly is unbalanced in stress, the barrel assembly firstly collides with the safety switch, so that the safety switch can be triggered to generate a corresponding signal, and the washing machine is protected safely.

However, on one hand, the uneven distribution of the clothes in the drum may cause the drum assembly to move to one side and not touch the mechanical safety switch on the other side, so that the safety switch cannot be triggered, and on the other hand, the collision between the drum assembly and the mechanical safety switch is easy to cause mechanical failure, thereby affecting the service life of the washing machine.

Disclosure of Invention

The embodiment of the application provides a washing machine and a control method thereof, which are used for avoiding the impact between a safety switch and a barrel assembly on the premise of keeping the function of the safety switch so as to prolong the service life of the washing machine.

In a first aspect, an embodiment of the present application provides a washing machine, including:

a rectangular box body;

a cartridge assembly disposed within the housing;

the four safety switches correspond to the four side walls in the box body one by one; the safety switch comprises at least one wireless signal transmitter and wireless signal receivers in one-to-one correspondence with the at least one wireless signal transmitter, and each wireless signal transmitter and the corresponding wireless signal receiver are oppositely arranged at two ends of the corresponding side wall of the safety switch; the direction of the signal sent by each wireless signal transmitter is parallel to the plane where the side wall corresponding to the safety switch is located.

The technical scheme provided by the embodiment of the application brings the following beneficial effects at least, because the safety switches including the wireless signal transmitter and the wireless signal receiver are arranged at two ends of the corresponding side wall, when the wireless signal transmitter transmits signals to the wireless signal receiver, the width of a signal transmission path is consistent with that of the side wall of the washing machine, and then the signal transmission of the four safety switches can form at least one layer of electronic fence without dead corners in the washing machine barrel. In this way, the cartridge assembly can enter the electronic fence regardless of any direction of irregular movement, thereby triggering the safety switch in a timely manner. In addition, each wireless signal transmitter and the corresponding wireless signal receiver are oppositely arranged at two ends of the side wall corresponding to the safety switch, so that the safety switch is positioned in a dead zone of the motion track of the washing machine barrel assembly, the mechanical fault caused by collision between the safety switch and the barrel assembly is avoided, and meanwhile, the noise caused by collision can be reduced.

In some embodiments, each safety switch of the washing machine comprises N wireless signal transmitters and N wireless signal receivers, where N is an integer greater than 1; for each safety switch, along the direction perpendicular to the side wall corresponding to the safety switch, the N wireless signal transmitters are arranged at one end of the side wall corresponding to the safety switch side by side at intervals, and the N wireless signal receivers are arranged at the other end of the side wall corresponding to the safety switch side by side at intervals.

It can be understood that a wireless signal transmitter and its corresponding wireless signal receiver are oppositely disposed at two ends of the side wall, and the signal transmitted between the wireless signal transmitter and its corresponding wireless signal receiver is equivalent to an electronic fence. Like this, if the quantity that every safety switch includes wireless signal transmitter and wireless signal receiver is N, and N wireless signal transmitter side by side and the interval sets up the one end at the lateral wall that the safety switch corresponds, and N wireless signal receiver side by side and the interval sets up the other end at the lateral wall that the safety switch corresponds to N layer electric fence from far away to near has been built apart from a section of thick bamboo subassembly. In this way, the relative distance between the cartridge assembly and the side wall can be sensed when the cartridge assembly impacts a different layer of the electric fence, thereby taking targeted measures to avoid the cartridge assembly from impacting the side wall.

In some embodiments, the washing machine box body is provided with fixing parts at four inner corners; n wireless signal transmitters are arranged on the outer surface of the fixing part at one end of the side wall corresponding to the safety switch, and N wireless signal receivers are arranged on the outer surface of the fixing part at the other end of the side wall corresponding to the safety switch. Thus, the fixing part can be used as a carrier to fix the safety switch, the wireless signal transmitter and the wireless signal receiver on four inner corners of the washing machine box body. In addition, because the motion trail of the washing machine barrel assembly is mostly circular or elliptical, the fixing parts arranged at four inner corners of the rectangular box body of the washing machine are positioned in the blind areas of the motion trail of the washing machine barrel assembly, and mechanical faults caused by collision between components in the fixing parts and the barrel assembly are avoided.

In some embodiments, the washing machine further comprises a controller electrically connected to the four safety switches; the wireless signal receiver is configured to send a switch trigger signal to the controller when not receiving the signal sent by the corresponding wireless signal transmitter within a preset time length.

It can be understood that when the wireless signal receiver does not receive the signal sent by its corresponding wireless signal transmitter within the preset time period, it indicates that the inner cylinder assembly moves to the path of signal transmission within the preset time period, thus hindering the transmission of the signal, and further indicates that the eccentricity of the inner cylinder assembly is large, and there is a possibility of hitting the box body.

In some embodiments, the controller of the washing machine is further configured to receive switch trigger signals sent by P wireless signal receivers in a target safety switch during the running of the dehydration program, the target safety switch being any one of four safety switches, P being a positive integer less than or equal to N; when the P wireless signal receivers comprise a first wireless signal receiver, the operation of the dehydration program is suspended, and the first wireless signal receiver is the wireless signal receiver with the closest distance from the side wall corresponding to the target switch; after suspending the operation of the dehydration program, executing an eccentricity adjustment program; after the eccentric adjustment process is completed, the dehydration process is continuously performed.

It can be understood that P wireless signal receivers in the target safety switch send switch trigger signals to the controller of the washing machine, which indicate that the barrel assembly of the washing machine moves to a monitoring range corresponding to the safety switch, and the movement track of the barrel assembly is in P signal transmission paths, so that transmission of P signals is blocked. In the case where the P wireless signal receivers include the first wireless signal receiver, it is described that the distance between the cartridge assembly and the case has exceeded the safe distance range at this time, and it is necessary to suspend the operation of the dehydration process to prevent the cartridge assembly from colliding with the case. After the operation of the dewatering program is suspended, the eccentric adjusting program is executed, and after the eccentric adjusting program is executed, the dewatering program is continuously executed. It should be noted that the greater the eccentricity, the closer the distance from the washing machine drum assembly moves, the greater the possibility of collision, and therefore, the movement of the drum assembly can be controlled within a safe range by executing the eccentricity adjustment program to reduce the possibility of collision of the drum assembly with the washing machine.

In some embodiments, the controller of the washing machine is further configured to reduce the spin-drying rotation speed of the drum assembly from a first spin-drying rotation speed to a second spin-drying rotation speed if the spin-drying rotation speed of the drum assembly has reached the first spin-drying rotation speed in a case where the P wireless signal receivers do not include the first wireless signal receiver, the first spin-drying rotation speed being a highest spin-drying rotation speed currently set by the spin-drying program.

It is understood that in the case where the P wireless signal receivers do not include the first wireless signal receiver, the description will be made when the cartridge assembly is closer to the case but not beyond the safe distance range. It should be noted that the higher the spin rate, the greater the magnitude of the centrifugal motion of the cartridge assembly, and the closer the cartridge assembly is to the housing, the greater the likelihood of collision with the housing. Therefore, when the rotation speed of the drum assembly is at the highest dehydration rotation speed currently set by the dehydration program, the dehydration rotation speed of the drum assembly needs to be reduced from the first dehydration rotation speed to the second dehydration rotation speed in order to avoid the movement of the drum assembly from exceeding the safety range.

In some embodiments, the tub assembly of the washing machine includes an inner tub and an outer tub, the controller of the washing machine is further configured to: and under the condition that the P wireless signal receivers do not comprise the first wireless signal receiver, if the dehydration rotating speed of the barrel assembly does not reach the first dehydration rotating speed, injecting water with a preset volume into the inner barrel.

It is understood that in the case where the P wireless signal receivers do not include the first wireless signal receiver, the description will be made when the cartridge assembly is closer to the case but not beyond the safe distance range. However, since the rotation speed of the drum assembly does not reach the first dehydration rotation speed, it is described that the drum assembly may collide with the tank body in the subsequent process of increasing the rotation speed of the drum assembly to the first dehydration rotation speed. Therefore, a preset volume of water can be injected into the inner cylinder to increase the weight of the inner cylinder so as to achieve the purpose of adjusting eccentricity.

In some embodiments, the wireless signal transmitter in the washing machine is an infrared signal transmitter and the wireless signal receiver is an infrared signal receiver.

In a second aspect, an embodiment of the present application provides a control method of a washing machine, including: in the process of running the dehydration program, receiving switch trigger signals sent by P wireless signal receivers in a target safety switch, wherein the target safety switch is any one of four safety switches of the washing machine, and P is a positive integer less than or equal to N; when the P wireless signal receivers comprise a first wireless signal receiver, the operation of the dehydration program is suspended, and the first wireless signal receiver is the wireless signal receiver with the closest distance from the side wall corresponding to the target switch; after suspending the operation of the dehydration process, executing an eccentricity adjustment process; after the eccentric adjustment process is completed, the dehydration process is continuously performed.

In some embodiments, the control method of the washing machine further includes: under the condition that the P wireless signal receivers do not comprise a first wireless signal receiver, judging whether the dehydration rotating speed of the barrel assembly reaches a first dehydration rotating speed, wherein the first dehydration rotating speed is the highest dehydration rotating speed currently set by the dehydration program; if yes, reducing the dehydration rotating speed of the barrel assembly from the first dehydration rotating speed to a second dehydration rotating speed; and if not, injecting water with a preset volume into the inner cylinder.

The technical scheme provided by the embodiment of the application has the beneficial effects that in the running process of the dehydration program, if the P wireless signal receivers comprise the first wireless signal receiver, the distance between the barrel assembly and the box body is already smaller than the safe distance, the possibility of collision with the box body is extremely high, the dehydration program needs to be suspended to avoid collision between the barrel assembly and the box body, and the eccentric adjustment program is further executed to enable the washing machine to continue running. If the P wireless signal receivers do not include the first wireless signal receiver, a specific approach safety distance between the drum assembly and the box body is described, so that the drum assembly may collide with the box body, and the rotation speed of the drum assembly needs to be adjusted to the second dehydration rotation speed when the dehydration rotation speed of the drum assembly is the highest rotation speed, so that the possibility that the drum assembly collides with the box body is reduced. In the case that the dehydration rotation speed of the cartridge assembly is not the maximum rotation speed, a preset volume of water is injected into the inner cartridge to increase the weight inside the cartridge to adjust the eccentricity of the cartridge assembly, thereby reducing the possibility of the cartridge assembly striking the housing.

In a third aspect, an embodiment of the present application provides a controller, including: one or more processors; one or more memories; wherein the one or more memories are configured to store computer program code comprising computer instructions which, when executed by the one or more processors, cause the controller to perform the control method provided by the second aspect.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium including computer instructions that, when controlled on a computer, cause the computer to perform the method provided in the second aspect and possible implementation manners.

In a fifth aspect, embodiments of the present invention provide a computer program product, which is directly loadable into a memory and contains software code, and which, when loaded and executed by a computer, is able to carry out the method as provided in the second aspect and possible implementations.

It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer readable storage medium may be packaged with or separately from a processor of the controller, which is not limited in this application.

The beneficial effects described in the second aspect to the fifth aspect in the present application may refer to the beneficial effect analysis of the first aspect, and are not described herein again.

Drawings

Fig. 1 is a schematic structural diagram of a washing machine according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another washing machine according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another washing machine according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of another washing machine provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of another washing machine according to an embodiment of the present disclosure;

fig. 6 is a schematic hardware structure diagram of a controller according to an embodiment of the present disclosure;

fig. 7 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of another washing machine according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of another washing machine according to an embodiment of the present application;

fig. 10 is a schematic diagram of a hardware structure of a controller according to an embodiment of the present application;

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connecting" are used in this application to mean conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

As background art, if the clothes are over-loaded during the dehydration starting and dehydration process of the washing machine, the drum assembly is severely eccentric when rotating, and a larger parallel amplitude is generated, and the drum assembly can impact the box body. In order to prevent the drum assembly from seriously impacting the box body to damage the washing machine, a mechanical safety switch is often arranged on one side above the box body in the prior art. However, on one hand, the uneven distribution of the clothes in the drum may cause the drum assembly to move to one side and not touch the mechanical safety switch on the other side, so that the safety hazard that the safety switch cannot be triggered exists, and on the other hand, the collision between the inner drum of the washing machine and the mechanical safety switch causes abrasion to the inner drum and the mechanical safety switch.

Based on this, the washing machine and the control method thereof provided by the application have the advantages that the four safety switches comprising the wireless signal emitter and the wireless signal receiver are arranged in the washing machine box body, and the four safety switches are in one-to-one correspondence with the four side walls in the box body, so that the four safety switches can form at least one layer of electronic fence on the four side walls in the washing machine box body. When the barrel assembly of the washing machine moves into the electronic fence, the transmission of signals can be blocked, and at the moment, the wireless signal receiver sends signals for triggering the safety switch to the controller of the washing machine. The method for triggering the safety switch avoids physical abrasion caused by direct contact of the barrel assembly and the safety switch on one hand, and on the other hand, because the electronic fence is distributed around the barrel assembly, the safety switch can be timely triggered when irregular movement of the barrel assembly deviates to any direction.

The washing machine in the embodiment of the application is a widely-used impeller type washing machine for washing clothes by using mechanical action of electric energy generation, and comprises a box body and a barrel assembly.

Fig. 1 is a structural diagram of a washing machine 11 according to an embodiment of the present disclosure, where the washing machine 11 includes: a tank 101 and a cartridge assembly 102.

In some embodiments, the cabinet 101 is used to protect electrical components inside the washing machine, close the contact passage between the inside and the outside of the washing machine, and prevent the electrical components from being damaged, and the cabinet 101 may be rectangular.

In some embodiments, the cartridge assembly 102 is disposed in the cabinet 101, leaving a space for movement of the cartridge assembly and placement of other electrical components with the cabinet 101, and the cartridge assembly 102 serves as a carrier for laundry to be washed and dehydrated.

In some embodiments, the cartridge assembly 102 includes an inner barrel 1021 and an outer barrel 1022. Wherein, the inner drum 1021 is provided with dehydration holes for discharging water in the laundry out of the inner drum 1021 in performing a dehydration process. The outer tub 1022 is provided with a drain port which is closed when the washing machine performs a washing process, thereby achieving a function of storing water in the tub assembly 102. When the washing machine executes the dewatering program, the water outlet is opened to discharge water out of the washing machine, so as to achieve the dewatering function.

In some embodiments, as shown in fig. 2, four safety switches 103 are disposed in the box 101, corresponding to four sidewalls in the box 101. The safety switch 103 is used for monitoring the movement condition of the barrel assembly 102, and when the barrel assembly 102 moves to the monitoring range of the safety switch 103, a corresponding switch trigger signal is sent to the controller of the washing machine.

In some embodiments, each safety switch 103 includes at least one wireless signal transmitter 1031 and a wireless signal receiver 1032 in one-to-one correspondence with the at least one wireless signal transmitter 1031. Each wireless signal transmitter and the corresponding wireless signal receiver are oppositely arranged at two ends of the corresponding side wall of the safety switch.

The wireless signal transmitter 1031 is used to transmit wireless signals. The direction of the signal sent by each wireless signal transmitter is parallel to the plane where the side wall corresponding to the safety switch is located. Optionally, the at least one wireless signal transmitter 1031 may be an infrared signal transmitter, and the embodiments of the present application do not limit the kind of the wireless transmitter.

The wireless signal receiver 1032 is used for receiving the wireless signal transmitted by its corresponding wireless signal transmitter. Optionally, at least one wireless signal receiver 1032 may be an infrared signal receiver, and the embodiment of the present application does not set any limitation on the kind of the wireless transmitter.

Optionally, each safety switch 103 includes N wireless signal transmitters 1031 and N wireless signal receivers 1032, and along a direction perpendicular to the side wall corresponding to the safety switch, the N wireless signal transmitters 1031 are disposed at an end of the side wall corresponding to the safety switch at intervals, the N wireless signal receivers 1032 are disposed at another end of the side wall corresponding to the safety switch at intervals, and N is an integer greater than 1. It can be understood that the signal transmission path between the wireless signal transmitter and the wireless signal receiver in each safety switch is parallel to the corresponding side wall, and an electronic fence can be formed on four side surfaces of the box body, so that the barrel assembly can be monitored in a shaking manner without a dead angle of 360 degrees, and whether the risk of colliding with the box body exists or not can be judged. In addition, every safety switch sets up N wireless signal transmitter and N wireless signal receiver and makes the number of piles of fence increase, and then the eccentric quantity of monitoring section of thick bamboo subassembly that can be more accurate. This facilitates a corresponding adjustment of the dewatering process according to the magnitude of the eccentricity of the cartridge assembly.

In some embodiments, the washing machine may further include a fixing portion 104.

The fixing portions 104 are disposed at four inner corners of the case 101, and are used for fixedly connecting the electrical components therein to the case 101 by being fixedly connected to the case 101.

Optionally, for each safety switch, the N wireless signal transmitters are disposed on the outer surface of the fixing portion at one end of the side wall corresponding to the safety switch, and the N wireless signal receivers are disposed on the outer surface of the fixing portion at the other end of the side wall corresponding to the safety switch.

Illustratively, as shown in fig. 3, four side walls of the washing machine box body in the clockwise direction are an a surface, a b surface, a c surface and a d surface respectively. When N is 3, set up four safety switch respectively along four lateral walls in the perpendicular to box, every safety switch includes three wireless transmitter and three wireless receiver, and three wireless transmitter interval sets up on the surface of the fixed part of the one end of the lateral wall that this safety switch corresponds, and three wireless receiver interval sets up on the surface of the fixed part of the other end of the lateral wall that this safety switch corresponds. The position of the safety switch can be that the wireless signal transmitter of the safety switch corresponding to the a surface is adjacent to the wireless signal receiver of the b surface, the wireless signal transmitter of the safety switch corresponding to the b surface is adjacent to the wireless signal receiver of the c surface, the wireless signal transmitter of the safety switch corresponding to the c surface is adjacent to the wireless signal receiver of the d surface, and the wireless signal transmitter of the safety switch corresponding to the d surface is adjacent to the wireless signal receiver of the a surface, so that three layers of electronic fences with intervals are respectively formed on the a surface, the b surface, the c surface and the d surface.

Optionally, as shown in fig. 4, the position of the safety switch may also be set such that the wireless signal transmitter of the safety switch corresponding to the a-plane is adjacent to the wireless signal transmitter of the b-plane, the wireless signal receiver of the safety switch corresponding to the b-plane is adjacent to the wireless signal receiver of the c-plane, the wireless signal transmitter of the safety switch corresponding to the c-plane is adjacent to the wireless signal transmitter of the d-plane, and the wireless signal receiver of the safety switch corresponding to the d-plane is adjacent to the wireless signal receiver of the a-plane, so that three layers of electronic fences with intervals are formed on the a-plane, the b-plane, the c-plane, and the d-plane, respectively.

In some embodiments, as shown in fig. 5, the washing machine may further include an eccentric adjustment device 105.

And an eccentric adjusting device 105 disposed in the case 101, connected to the cartridge assembly 102, for applying a resistance to the cartridge assembly 102 to limit a shaking width of the cartridge assembly 102.

Wherein the eccentric adjusting device 105 comprises: a fixed base 1051 and an adjusting rod 1052. The fixing base 1051 is disposed on the box 101 and used for establishing a fixed connection with the box 101.

An adjustment rod 1052 is disposed above the fixed base 1051 and connected to the housing 101 for applying a resistance to the movement of the cartridge assembly 102 when the movement is unbalanced, thereby adjusting the eccentricity of the cartridge assembly.

In some embodiments, as shown in fig. 6, the washing machine may further include: the device comprises a controller 106, a power supply 107, a motor 108, a display panel 109, a man-machine interaction device 110 and a communicator 111.

The controller 106 is electrically connected with the safety switch 103, the eccentric adjusting device 105, the power supply 107, the motor 108, the display panel 109, the human-computer interaction device 110 and the communicator 111.

In some embodiments, the controller 106 refers to a device that can generate an operation control signal instructing the washing machine 11 to execute a control instruction according to the instruction operation code and the timing signal. Illustratively, the controller 106 may be a Central Processing Unit (CPU), a general purpose processor Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The controller may also be other devices with processing functions, such as a circuit, a device, or a software module, which is not limited in any way by the embodiments of the present application.

In some embodiments, a power supply 107 is disposed within the cabinet 101 for providing electrical support for the operation of the electrical components of the washing machine 11 under the control of the controller 106. The power supply 107 may include a built-in circuit installed inside the washing machine 11, or may be an external power supply installed in the washing machine 11, and provides a power interface for an external power supply in the washing machine 11.

In some embodiments, the motor 108 is disposed in the casing 101 and connected to the inner cylinder 1021 for driving the inner cylinder 1021 to rotate, so as to realize low-speed rotation and high-speed rotation during dehydration.

In some embodiments, the display panel 109 may be a liquid crystal display, an organic light-emitting diode (OLED) display. The particular type, size, resolution, etc. of the display is not limiting, and those skilled in the art will appreciate that the display may be modified in performance and configuration as desired. The display 109 may be used to display a control panel of the washing machine. The washing machine may feed back a current state of the washing machine, such as being in a washing state or a dehydrating state, etc., through the display.

In some embodiments, the human-machine interaction device 110 is used to enable interaction between a user and the washing machine 11, and the human-machine interaction device 110 may include one or more of physical keys or a touch-sensitive display panel. For example, the user may manually start the washing machine to operate through the human-computer interaction device 110, or set the spin-drying program run by the washing machine 11 through the human-computer interaction device 110.

In some embodiments, communicator 111 is a component for communicating with external devices or external servers according to various communication protocol types. For example: the communication device may include at least one of a Wi-Fi chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, or other network communication protocol chip or near field communication protocol chip, and an infrared receiver. The washing machine 11 may transmit a control signal and a data signal with a terminal device used by a user through the communicator 111. For example, the washing machine 11 receives a start instruction from the terminal device through the communicator 111, and the controller 106 of the washing machine 11 controls the washing machine to start the spin-drying process according to the start instruction.

It is to be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the washing machine. In other embodiments of the present application, a washing machine may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

As shown in fig. 7, an embodiment of the present application provides a control method of a washing machine, including the steps of:

s101, in the process of running the dehydration program, receiving switch trigger signals sent by P wireless signal receivers in the target safety switch.

The target safety switch is any one of the four safety switches, and P is a positive integer less than or equal to N.

It should be noted that the wireless signal receiver is configured to send the switch trigger signal to the controller when the signal sent by its corresponding wireless signal transmitter is not received within a preset time period. For example, the preset time duration is 1 second, if the wireless signal receiver does not receive the signal sent by the wireless signal transmitter within 1 second, which indicates that the time for which the signal is blocked exceeds 1 second, the wireless signal receiver sends a switch trigger signal to the controller, and if the time for which the signal is blocked does not exceed 1 second, the wireless signal receiver does not send the switch trigger signal to the controller.

S102, whether the P wireless signal receivers comprise a first wireless signal receiver is judged.

The first wireless signal receiver is the wireless signal receiver closest to the side wall corresponding to the target switch.

If yes, executing the following step S103; if not, the following step S106 is executed.

And S103, suspending the running of the dehydration program under the condition that the P wireless signal receivers comprise the first wireless signal receiver.

It is understood that in the case that the P wireless signal receivers include the first wireless signal receiver, it is described that the eccentricity is too large at this time, and it is necessary to stop the dehydration process in time to prevent the cartridge assembly from colliding with the case.

And S104, after the operation of the dehydration program is suspended, executing an eccentricity adjustment program.

Optionally, when the eccentricity adjustment procedure is performed, the controller performs a water inlet procedure and controls the eccentricity adjustment device to shake the cartridge assembly. Thus, the clothes of the inner drum can be shaken and dispersed, and the load in the drum is uniformly distributed to reduce eccentricity.

And S105, after the eccentric adjustment program is executed, continuing to execute the dehydration program.

S106, under the condition that the P wireless signal receivers do not comprise the first wireless signal receiver, whether the dehydration rotating speed of the cylinder assembly reaches the first dehydration rotating speed is judged.

Wherein the first dehydration rotation speed is the highest dehydration rotation speed currently set by the dehydration program.

If yes, executing the following step S107; if not, the following step S108 is executed.

And S107, reducing the dehydration rotating speed of the cylinder assembly from the first dehydration rotating speed to the second dehydration rotating speed.

Wherein the second dehydration rotation speed is less than the first dehydration rotation speed.

It is understood that in the case where the P wireless signal receivers do not include the first wireless signal receiver, the eccentricity is larger, and the eccentricity may be increased by continuing to operate at a high speed. Therefore, a second dewatering rotation speed with a relatively low rotation speed is required to avoid further increasing of eccentricity.

Optionally, after the rotation speed of the drum assembly is reduced from the first dehydration rotation speed to the second dehydration rotation speed, a switch trigger signal from the safety switch may still be received, and the controller may suspend the execution of the dehydration process. After the dehydration process is performed, an eccentricity adjustment process is performed. After the eccentric adjustment process is completed, the dewatering process is continued. Therefore, under the condition that the eccentricity can not be reduced even when the dewatering rotating speed is reduced, the dewatering process is suspended in time, and the phenomenon that the eccentricity is increased under the dewatering rotating speed is avoided so as to prevent the barrel assembly from colliding with the box body.

And S108, injecting water with a preset volume into the inner barrel.

Illustratively, the washing machine controller controls the water inlet to inject 0.5L of water, and shakes the drum assembly to achieve the effect of shaking off the inner drum clothes.

In some embodiments, if the washing machine can still receive the switch triggering signal of the safety switch, the preset volume of water is refilled. In this way, in the course of running the dehydration program, when the water injection frequency exceeds the preset frequency (for example, 3 times), the dehydration program is suspended, the eccentricity adjustment program is executed, and after the eccentricity adjustment program is executed, the dehydration program is continuously executed. Thus, the eccentricity can be adjusted by the eccentricity adjustment program under the condition that the eccentricity can not be effectively adjusted by water injection.

The embodiment shown in fig. 7 has at least the following beneficial effects that the eccentricity of the washing machine is judged according to the received P wireless signals, so that the dehydration program of the washing machine is adjusted, the dehydration efficiency is improved while the eccentricity is reduced, the problems of cylinder collision, friction and the like are avoided, and the service life of the washing machine is prolonged.

Illustratively, as shown in fig. 8, N is 3, and the first wireless signal receiver M is the wireless signal receiver closest to the d-side wall. During the dewatering process, when the cylinder assembly moves into the electronic fence on the d surface, the cylinder assembly is positioned on three signal transmission paths, the controller receives switch trigger signals sent by three wireless signal receivers in the safety switches arranged on the d surface, and the three wireless signal receivers comprise a first wireless signal receiver, so that the cylinder assembly is very close to the box body, and the possibility of collision is very high. At this time, the controller suspends the dehydration process and executes the eccentricity adjustment process. After the eccentric adjustment process is completed, the dehydration process is continuously performed.

Illustratively, as shown in fig. 9, N is 3, and the first wireless signal receiver M is the wireless signal receiver closest to the d-side wall. During the dewatering program, when the cylinder assembly moves to the electronic fence on the d surface, the cylinder assembly is on two signal transmission paths, the controller receives switch trigger signals sent by two wireless signal receivers in the safety switch arranged on the d surface, the three wireless signal receivers do not comprise the first wireless signal receiver, and the possibility of collision still exists when the distance between the cylinder assembly and the box body is relatively close but the safe distance is not exceeded.

At the moment, the washing machine controller correspondingly adjusts the dehydration program according to whether the current dehydration rotating speed is the first dehydration rotating speed set by the current dehydration program.

If the dehydration rotating speed is the first dehydration rotating speed set by the current dehydration program, the controller reduces the dehydration rotating speed of the cylinder assembly to the second dehydration rotating speed, so that the eccentricity can be prevented from being further increased. After the rotating speed of the cylinder assembly is reduced from the first dehydration rotating speed to the second dehydration rotating speed, the controller can still receive a switch trigger signal, and then the controller suspends the dehydration program and executes the eccentricity adjustment program after the dehydration program is executed.

If the dehydration rotation speed is not the first dehydration rotation speed set by the current dehydration program, a preset volume of water, for example, 0.5L, is injected into the inner cylinder. Thus, the eccentricity of the cartridge assembly can be adjusted by water injection to avoid the eccentricity from increasing.

In some embodiments, the position of the drum assembly of the washing machine may be self-checked by a wireless signal transmitter and a wireless signal receiver before the dehydration process is performed. If the wireless signal receiver sends a safety switch triggering signal to the controller, the washing machine sends an error prompt to a user to prompt the user to maintain the washing machine.

It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. In order to implement the above functions, the embodiments of the present application provide a hardware structure and/or a software module corresponding to each function. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present application, the controller may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

As shown in fig. 10, the controller 106 includes a processor 1061, and optionally, a memory 1062 connected to the processor 1061 and a communication interface 1063. Processor 1061, memory 1062, and communication interface 1063 are connected by a bus 1064.

The processor 1061 may be a Central Processing Unit (CPU), a general purpose processor Network (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 1061 may also be any other device with processing function, such as a circuit, a device, or a software module. The processor 1061 may also include a plurality of CPUs, and the processor 1061 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores that process data (e.g., computer program instructions).

Memory 1062 may be a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, but is not limited to, electrically erasable programmable read-only memory (EEPROM), compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 1062 may be separate or integrated with the processor 1061. The memory 1062 may contain, among other things, computer program code. The processor 1061 is configured to execute the computer program code stored in the memory 1062, thereby implementing the control method provided by the embodiment of the present application.

Communication interface 1063 may be used for communicating with other devices or communication networks (e.g., an ethernet, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), etc.).

The bus 1064 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 1064 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.

Embodiments of the present application also provide a computer-readable storage medium, which includes computer-executable instructions, and when the computer-executable instructions are executed on a computer, the computer is enabled to execute the control method of any one of the washing machines provided in the foregoing embodiments.

Embodiments of the present application further provide a computer program product containing instructions executed by a computer, which when run on the computer, causes the computer to execute any one of the control methods of the washing machine provided in the above embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer-executable instructions. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer executable instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer executable instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer-readable storage media can be any available media that can be accessed by a computer or data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

While the present application is described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations may be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

The above is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A washing machine, characterized by comprising:

a rectangular box body;

the cylinder assembly is arranged in the box body;

the four safety switches correspond to the four side walls in the box body one by one; the safety switch comprises at least one wireless signal transmitter and wireless signal receivers corresponding to the at least one wireless signal transmitter one to one, and each wireless signal transmitter and the corresponding wireless signal receiver are oppositely arranged at two ends of the corresponding side wall of the safety switch; the direction of the signal sent by each wireless signal transmitter is parallel to the plane where the side wall corresponding to the safety switch is located.

2. The washing machine as claimed in claim 1, wherein each of the safety switches includes N wireless signal transmitters and receivers, N being an integer greater than 1;

for each safety switch, along the direction perpendicular to the side wall corresponding to the safety switch, N wireless signal transmitters are arranged at one end of the side wall corresponding to the safety switch at intervals, and N wireless signal receivers are arranged at the other end of the side wall corresponding to the safety switch at intervals.

3. A washing machine as claimed in claim 2, wherein four inner corners of the cabinet are provided with fixing portions;

n wireless signal transmitter sets up on the surface of the fixed part of the one end of the lateral wall that the safety switch corresponds, N wireless signal receiver sets up on the surface of the fixed part of the other end of the lateral wall that the safety switch corresponds.

4. The washing machine as claimed in claim 2, further comprising:

the controller is electrically connected with the four safety switches;

the wireless signal receiver is configured to send a switch trigger signal to the controller when not receiving a signal sent by its corresponding wireless signal transmitter within a preset time period.

5. A washing machine according to claim 4,

the controller configured to:

in the process of running a dehydration program, receiving switch trigger signals sent by P wireless signal receivers in a target safety switch, wherein the target safety switch is any one of the four safety switches, and P is a positive integer less than or equal to N;

suspending the operation of the dehydration program under the condition that the P wireless signal receivers comprise a first wireless signal receiver, wherein the first wireless signal receiver is the wireless signal receiver with the closest distance from the side wall corresponding to the target switch;

after suspending the operation of the dehydration process, executing an eccentricity adjustment process;

after the eccentric adjustment process is completed, the dehydration process is continuously performed.

6. A washing machine according to claim 5,

the controller further configured to:

in the case that the P wireless signal receivers do not include the first wireless signal receiver, if the dehydrating rotational speed of the drum assembly has reached a first dehydrating rotational speed, the dehydrating rotational speed of the drum assembly is reduced from the first dehydrating rotational speed to a second dehydrating rotational speed, the first dehydrating rotational speed being the highest dehydrating rotational speed currently set by the dehydrating program.

7. A washing machine according to claim 6,

the barrel assembly comprises an inner barrel and an outer barrel;

the controller further configured to:

and under the condition that the P wireless signal receivers do not comprise the first wireless signal receiver, if the dehydration rotating speed of the cylinder assembly does not reach the first dehydration rotating speed, injecting water with a preset volume into the inner cylinder.

8. A washing machine as claimed in any one of claims 1 to 7 wherein the wireless signal transmitter is an infra-red signal transmitter and the wireless signal receiver is an infra-red signal receiver.

9. A control method applied to a washing machine as claimed in any one of the preceding claims 1 to 8, characterized in that the method comprises:

in the process of running a dehydration program, receiving switch trigger signals sent by P wireless signal receivers in a target safety switch, wherein the target safety switch is any one of four safety switches of the washing machine, and P is a positive integer less than or equal to N;

10. The method of claim 9, further comprising:

under the condition that the P wireless signal receivers do not comprise a first wireless signal receiver, judging whether the dehydration rotating speed of the barrel assembly reaches a first dehydration rotating speed, wherein the first dehydration rotating speed is the highest dehydration rotating speed currently set by the dehydration program;

if yes, reducing the dehydration rotating speed of the barrel assembly from the first dehydration rotating speed to a second dehydration rotating speed;

if not, injecting water with a preset volume into the inner cylinder.