CN114941230B

CN114941230B - Washing machine and control method thereof

Info

Publication number: CN114941230B
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: 2024-06-21
Anticipated expiration: 2042-06-30
Also published as: CN114941230A

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; a cartridge assembly disposed within the housing; the four safety switches are in one-to-one correspondence with the four side walls in the box body; the safety switch comprises at least one wireless signal emitter and wireless signal receivers which are in one-to-one correspondence with the at least one wireless signal emitter, and each wireless signal emitter and each corresponding wireless signal receiver are oppositely arranged at two ends of the side wall corresponding to the safety switch; the direction of the signal sent by each wireless signal transmitter is parallel to the plane of the side wall corresponding to the safety switch.

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

A washing machine generally includes a cabinet and a tub assembly positioned within the cabinet. During the dehydration, the drum assembly may generate abnormal vibration due to unbalanced stress due to irregular laundry placement, and thus, the case of striking the cabinet may occur. The long-term impact of the cartridge assembly against the casing not only gives off unpleasant noise, but may cause mechanical failure or displacement of the washing machine.

At present, in order to avoid the occurrence of the above-mentioned condition, a mechanical safety switch is generally arranged at one side of a box body of the washing machine to monitor, and when the stress of the cylinder assembly is unbalanced, the cylinder assembly firstly impacts the safety switch, so that the safety switch can be triggered to generate a corresponding signal, and the washing machine is safely protected.

However, on the one hand, the uneven distribution of the clothes in the drum may cause the drum assembly to deviate to one side and touch the mechanical safety switch on the other side, so that the hidden danger of failing to trigger the safety switch exists, and on the other hand, the collision between the drum assembly and the mechanical safety switch is easy to cause mechanical failure, so that the service life of the washing machine is influenced.

Disclosure of Invention

The embodiment of the application provides a washing machine and a control method thereof, which are used for avoiding collision between a safety switch and a cylinder assembly on the premise of retaining 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;

a cartridge assembly disposed within the housing;

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

The technical scheme provided by the embodiment of the application has the advantages that the safety switches comprising the wireless signal transmitter and the wireless signal receiver are arranged at the two ends of the corresponding side wall, so that when the wireless signal transmitter transmits signals to the wireless signal receiver, the signal transmission path is consistent with the width of the side wall of the washing machine, and the signal transmission of the four safety switches can form at least one layer of electronic fence without dead angle in the washing machine barrel. Thus, no matter the barrel assembly performs irregular movement in any direction, the barrel assembly can enter the electronic fence, and the safety switch is triggered timely. In addition, each wireless signal transmitter and each corresponding wireless signal receiver are oppositely arranged at two ends of the corresponding side wall of the safety switch, so that the safety switch is positioned in a dead zone of the movement track of the washing machine barrel assembly, mechanical faults caused by collision between the safety switch and the barrel assembly are avoided, and noise caused by collision can be reduced.

In some embodiments, each safety switch of the washing machine includes a number of wireless signal transmitters and wireless signal receivers N, 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 side by side at intervals, and 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 will be appreciated that a wireless signal transmitter and its corresponding wireless signal receiver are disposed opposite the two ends of the sidewall, and the signal transmitted between the wireless signal transmitter and its corresponding wireless signal receiver corresponds to a picket fence. Thus, if the number of the wireless signal transmitters and the wireless signal receivers included in each safety switch is N, the N wireless signal transmitters are arranged side by side and at intervals at one end of the side wall corresponding to the safety switch, and the N wireless signal receivers are arranged side by side and at intervals at the other end of the side wall corresponding to the safety switch, so that an N-layer electronic fence far from the barrel assembly is constructed. In this way, when the cylinder assembly collides with the electronic fence of different layers, the relative distance between the cylinder assembly and the side wall can be perceived, so that targeted treatment measures are taken to avoid the cylinder assembly from colliding with the side wall.

In some embodiments, the four inner corners of the washing machine box are provided with fixing parts; 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 at four inner corners of the washing machine box body. In addition, because the motion track of the washing machine barrel component is mostly round or elliptical, the fixing parts arranged at the four inner corners of the rectangular box body of the washing machine are positioned in dead zones of the motion track of the washing machine barrel component, and mechanical faults caused by collision between components in the fixing parts and the barrel component 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 a signal sent by its corresponding wireless signal transmitter is not received within a preset time period.

It will be appreciated that when the wireless signal receiver does not receive a signal from its corresponding wireless signal transmitter within a predetermined period of time, it is indicated that the inner barrel assembly moves onto the path of signal transmission for the predetermined period of time, thereby impeding signal transmission, further indicating that the eccentricity of the barrel assembly is greater at this time, and the possibility of striking the box exists.

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 a process of running the dehydration program, the target safety switch being any one of the four safety switches, P being a positive integer less than or equal to N; in the case that the P wireless signal receivers include a first wireless signal receiver, which is the wireless signal receiver closest to the sidewall corresponding to the target switch, suspending the operation of the dehydration process; after the operation of the dehydration process is suspended, an eccentricity adjustment process is performed; after the eccentric adjustment program is completed, the dehydration program is continued to be executed.

It can be understood that the P wireless signal receivers in the target safety switch send a switch trigger signal to the controller of the washing machine to indicate that the drum assembly of the washing machine moves to the monitoring range corresponding to the safety switch, and the movement track of the drum assembly is in the P signal transmission paths, so that the transmission of the P signals is blocked. In the case where the P wireless signal receivers include the first wireless signal receiver, it is indicated that the distance between the cartridge assembly and the casing 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 casing. After the operation of the dehydration process is suspended, the eccentric adjustment process is executed, and after the execution of the eccentric adjustment process is completed, the dehydration process is continued to be executed. It should be noted that the greater the eccentricity, the closer the distance from the cabinet is to the motion of the washing machine barrel assembly, and the greater the possibility of collision, so that the motion of the barrel assembly can be controlled within a safe range by performing the eccentricity adjustment procedure, so as to reduce the possibility of collision of the barrel assembly with the washing machine.

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

It will be appreciated that where the P wireless signal receivers do not include the first wireless signal receiver, this is illustrated as when the cartridge assembly is closer to the housing but not yet beyond the safe distance range. It should be noted that the higher the dewatering speed, the greater the centrifugal movement amplitude 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 rotational speed of the drum assembly is at the highest rotational speed currently set by the dehydration program, the rotational speed of the drum assembly needs to be reduced from the first rotational speed to the second rotational speed to avoid movement of the drum assembly beyond a safe 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 further configured to: in the case where the P wireless signal receivers do not include the first wireless signal receiver, if the dehydration engine speed of the cartridge assembly has not reached the first dehydration engine speed, a predetermined volume of water is injected into the inner cartridge.

It will be appreciated that where the P wireless signal receivers do not include the first wireless signal receiver, this is illustrated as when the cartridge assembly is closer to the housing but not yet beyond the safe distance range. However, since the rotational speed of the cartridge assembly does not reach the first dehydration rotational speed, it is explained that the cartridge assembly may collide with the casing during the subsequent process of increasing the rotational speed of the cartridge assembly to the first dehydration rotational speed. Therefore, the 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 the 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, the method 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; in the case that the P wireless signal receivers include a first wireless signal receiver, which is the wireless signal receiver closest to the sidewall corresponding to the target switch, suspending the operation of the dehydration process; after the operation of the dehydration process is suspended, an eccentricity adjustment process is performed; after the eccentric adjustment program is completed, the dehydration program is continued to be executed.

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

The technical scheme provided by the embodiment of the application has the advantages that in the running process of the dehydration program, if the distance between the cylinder assembly and the box body is smaller than the safe distance under the condition that the P wireless signal receivers comprise the first wireless signal receiver, the possibility of collision with the box body is extremely high, the dehydration program needs to be suspended to avoid collision between the cylinder 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, it is indicated that the specific approach safety distance between the drum assembly and the case is at this time, and there is a possibility that the drum assembly will strike the case, and the rotational speed needs to be adjusted to the second rotational speed for dehydration when the rotational speed of dehydration of the drum assembly is at the highest rotational speed, so as to reduce the possibility that the drum assembly will strike the case. In the case where the dehydration speed of the cartridge assembly is not the highest speed, a preset volume of water is injected into the inner cartridge to increase the weight in 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 that, when executed by the one or more processors, cause the controller to perform the control method provided in the second aspect.

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

In a fifth aspect, embodiments of the present invention provide a computer program product directly loadable into a memory and comprising software code, the computer program product being capable of performing the method as provided in the second aspect and in a possible implementation after being loaded and executed via a computer.

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

The advantageous effects described in the second to fifth aspects of the present application may be referred to for the advantageous effect analysis of the first aspect, and will not be described here again.

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 structural view of another washing machine according to an embodiment of the present application;

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

fig. 4 is a schematic structural view of another washing machine according to an embodiment of the present application;

fig. 5 is a schematic view illustrating a structure of another washing machine according to an embodiment of the present application;

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

fig. 7 is a flow chart of a control method of a washing machine according to an embodiment of the present application;

Fig. 8 is a schematic view illustrating a structure of another washing machine according to an embodiment of the present application;

fig. 9 is a schematic view illustrating a structure 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 following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present invention, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

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

As described in the background art, if laundry is excessively unbalanced during the starting and dehydrating processes of the washing machine, the drum assembly is severely eccentric while rotating, and thus a large parallel amplitude is generated, and the drum assembly collides with the cabinet. In order to prevent the drum assembly from seriously striking the cabinet to damage the washing machine, a mechanical safety switch is often arranged on one side above the cabinet in the prior art. However, on the one hand, the mechanical safety switch which is not touched by the cylinder component due to uneven distribution of the clothes in the cylinder can be deviated to one side to move, so that the safety switch is not triggered, and on the other hand, the inner cylinder of the washing machine and the mechanical safety switch are worn by the impact of the inner cylinder of the washing machine and the mechanical safety switch.

Based on the above, the four safety switches comprising the wireless signal transmitter and the wireless signal receiver are arranged in the washing machine box, and the four safety switches are in one-to-one correspondence with the four side walls in the box, 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. When the drum assembly of the washing machine moves into the electronic fence, signal transmission is blocked, and at the moment, the wireless signal receiver sends a signal 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 between the cylinder assembly and the safety switch, and on the other hand, the electronic fence is distributed around the cylinder assembly, so that the irregular movement of the cylinder assembly deflects to any direction to trigger the safety switch in time.

The washing machine in the embodiment of the application is a widely applied pulsator washing machine for washing clothes by utilizing the action of an electric energy generating machine and comprises a box body and a drum assembly.

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

In some embodiments, the case 101 is used to protect the electrical components inside the washing machine, close the passages of the washing machine that are in contact with the outside, and prevent damage to the electrical components, and the case 101 may be rectangular.

In some embodiments, the drum assembly 102 is disposed within the housing 101, leaving a space with the housing 101 for movement of the drum assembly and placement of other electrical components, the drum assembly 102 serving as a carrier for laundry and for accomplishing washing and dewatering of the laundry.

In some embodiments, the cartridge assembly 102 includes an inner cartridge 1021 and an outer cartridge 1022. Wherein, the inner cylinder 1021 is provided with a dehydrating hole for discharging water in the laundry out of the inner cylinder 1021 in performing the dehydrating process. The outer tub 1022 is provided with a drain opening that is closed when the washing machine performs a washing course, thereby achieving a water storage function in the tub assembly 102. The water draining port is opened to drain water out of the washing machine to dewater.

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

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 each corresponding wireless signal receiver are oppositely arranged at two ends of the side wall corresponding to the safety switch.

The wireless signal transmitter 1031 is for transmitting wireless signals. The direction of the signal sent by each wireless signal transmitter is parallel to the plane of the side wall corresponding to the safety switch. Alternatively, the at least one wireless signal transmitter 1031 may be an infrared signal transmitter, and the embodiment of the present application does not limit the kind of wireless transmitter.

The wireless signal receiver 1032 is configured to receive wireless signals transmitted by its corresponding wireless signal transmitter. Alternatively, at least one wireless signal receiver 1032 may be an infrared signal receiver, and embodiments of the present application do not limit the type of wireless transmitter.

Optionally, each safety switch 103 includes N wireless signal transmitters 1031 and N wireless signal receivers 1032, where N wireless signal transmitters 1031 are disposed at intervals at one end of the sidewall corresponding to the safety switch, N wireless signal receivers 1032 are disposed at intervals at the other end of the sidewall corresponding to the safety switch, and N is an integer greater than 1 along a direction perpendicular to the sidewall corresponding to the safety switch. 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 sides of the box body, so that 360-degree dead angle-free shake monitoring of the barrel assembly is realized, and whether the risk of collision to the box body is judged. In addition, each safety switch sets up N wireless signal transmitter and N wireless signal receiver and makes the layer number of electronic fence increase, and then the eccentric volume of monitoring section of thick bamboo subassembly that can be more accurate. This facilitates corresponding adjustments to the dewatering process based on the magnitude of the eccentricity of the cartridge assembly.

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

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

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

Illustratively, as shown in fig. 3, four sidewalls of the washing machine box in the clockwise direction are a-plane, b-plane, c-plane, and d-plane, respectively. When N is 3, four safety switches are respectively arranged along four side walls perpendicular to the inside of the box body, each safety switch comprises three wireless signal transmitters and three wireless signal receivers, the three wireless signal transmitters are arranged on the outer surface of the fixing part of one end of the side wall corresponding to the safety switch at intervals, and the three wireless signal receivers are arranged on the outer surface of the fixing part of the other end of the side wall corresponding to the safety switch at intervals. The position of the safety switch may be that the wireless signal transmitter of the safety switch corresponding to the a-plane is adjacent to the wireless signal receiver of the b-plane, the wireless signal transmitter 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 receiver of the d-plane, and the wireless signal transmitter 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.

Optionally, as shown in fig. 4, the position setting of the safety switch may be 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.

The eccentric adjusting device 105 is disposed in the case 101, connected to the barrel assembly 102, and configured to apply a resistance to the barrel assembly 102 to limit the shake amplitude of the barrel assembly 102.

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

An adjustment lever 1052 is disposed above the fixed base 1051 and is coupled to the housing 101 for applying a resistive force to the cartridge assembly 102 when it is not moving in balance, and for adjusting the eccentricity of the cartridge assembly.

In some embodiments, as shown in fig. 6, the washing machine may further include: 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 man-machine 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 an instruction operation code and a timing signal. By way of example, the controller 106 may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (DIGITAL SIGNAL processing, DSP), a microprocessor, a microcontroller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The controller may also be any other device having processing functionality, such as a circuit, device or software module, for which embodiments of the application are not limited in any way.

In some embodiments, a power supply 107 is disposed in the cabinet 101 for providing power support for operation of the various 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 a power supply interface for providing 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 are not limited, 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 the current state of the washing machine, for example, in a washing state or a dehydrating state, etc., through the display.

In some embodiments, the human-machine interaction device 110 is configured 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 buttons or a touch-sensitive display panel. For example, the user may manually start the washing machine to start operation through the man-machine interaction device 110, or may set a dehydration program for the washing machine 11 to operate through the man-machine 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 a near field communication protocol chip, and an infrared receiver. The washing machine 11 may transmit control signals and data signals with terminal devices used by a user through the communicator 111. For example, the washing machine 11 receives a start-up instruction from the terminal device through the communicator 111, and according to the start-up instruction, the controller 106 of the washing machine 11 controls the washing machine to start the dehydration process.

It should be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the washing machine. In other embodiments of the application, the washing machine may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

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, the method 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 smaller than or equal to N.

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

S102, judging whether the P wireless signal receivers comprise a first wireless signal receiver or not.

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

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

S103, in the case where the P wireless signal receivers include the first wireless signal receiver, the operation of the dehydration process is suspended.

It will be appreciated that in the case where the P wireless signal receivers comprise the first wireless signal receiver, this indicates that the eccentricity is excessive at this time, and that it is necessary to stop the dehydration process in time to prevent the cartridge assembly from colliding with the housing.

S104, after the operation of the dewatering program is suspended, executing the eccentric adjustment program.

Optionally, the controller executes the water intake program and controls the eccentric adjustment device to shake the cartridge assembly while executing the eccentric adjustment program. In this way, the laundry of the inner tub can be subjected to a shaking-out operation, so that the load in the tub is uniformly distributed to reduce eccentricity.

S105, after the eccentric adjustment program is executed, the dehydration program is continuously executed.

S106, judging whether the dehydration speed of the barrel component reaches the first dehydration speed or not under the condition that the P wireless signal receivers do not comprise the first wireless signal receiver.

The first dehydration rotating speed is the highest dehydration rotating speed currently set by the dehydration program.

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

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 rotational speed is less than the first dehydration rotational speed.

It will be appreciated that in the case where the P wireless signal receivers do not include the first wireless signal receiver, this indicates that the eccentricity is large at this time, and continuing to operate at high speed may increase the eccentricity. Therefore, a second dewatering rotation speed with a relatively low rotation speed is needed, and further eccentric increase is avoided.

Alternatively, after the rotational speed of the cartridge assembly is reduced from the first rotational speed to the second rotational speed, the controller will pause the execution of the dehydration process after receiving the switch trigger signal from the safety switch. After the dehydration process is performed, an eccentricity adjustment process is performed. After the eccentric adjustment program is completed, the dehydration program is continued to be executed. Thus, under the condition that the eccentric rotation speed is reduced, the eccentric rotation speed still cannot be reduced, the dehydration procedure is suspended in time, and the eccentric rotation speed is prevented from being increased to prevent the barrel assembly from colliding with the box body.

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

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 the drum laundry.

In some embodiments, if the washing machine still receives the switch trigger signal of the safety switch, the preset volume of water is refilled. Thus, in the course of running the dehydration program, when the number of water injections exceeds a preset number (for example, 3 times), the dehydration program is suspended, the eccentric adjustment program is executed, and after the eccentric adjustment program is executed, the dehydration program is continued to be executed. Thus, the eccentricity can be adjusted by the eccentricity adjusting program under the condition that the eccentricity cannot be effectively adjusted by water injection.

The embodiment shown in fig. 7 has at least the following advantages that the eccentricity of the washing machine is judged according to the received P wireless signals, so that the dewatering procedure of the washing machine is adjusted, the dewatering 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-plane sidewall. In the process of executing the dehydration procedure, when the barrel assembly moves into the electronic fence on the d surface, the barrel assembly is positioned on three signal transmission paths, the controller receives switch trigger signals sent by three wireless signal receivers in the safety switch arranged on the d surface, and at the moment, the three wireless signal receivers comprise first wireless signal receivers, which indicate that the barrel assembly is very close to the box body, and the possibility of collision is very high. At this time, the controller pauses the dehydration process and executes the eccentricity adjustment process. After the eccentric adjustment program is completed, the dehydration program is continued to be executed.

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-plane sidewall. In the process of executing the dehydration procedure, when the barrel assembly moves into the electronic fence on the d surface, the barrel assembly is positioned 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, and at the moment, the three wireless signal receivers do not comprise the first wireless signal receiver, which means that the distance between the barrel assembly and the box body is relatively close but not exceeding the safety distance, and the possibility of collision still exists.

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

If the dehydration speed is the first dehydration speed set by the current dehydration program, the controller reduces the dehydration speed of the barrel assembly to the second dehydration speed, so that further eccentric increase can be avoided. After the rotational speed of the drum assembly is reduced from the first rotational speed to the second rotational speed, the switch trigger signal may still be received, and the controller will pause the execution of the spinning program, and after the execution of the spinning program, execute the eccentricity adjustment program.

If the spin rate is not the first spin rate set by the current spin program, a preset volume of water, for example 0.5L, is injected into the inner drum. 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 tub assembly of the washing machine may be self-checked by the wireless signal transmitter and the wireless signal receiver before the dehydration procedure is performed. If the wireless signal receiver sends a safety switch trigger signal to the controller, the washing machine sends an error prompt to a user so as to prompt the user to repair the washing machine.

It can be seen that the foregoing description of the solution provided by the embodiments of the present application has been presented mainly from a method perspective. To achieve the above-mentioned functions, embodiments of the present application provide corresponding hardware structures and/or software modules that perform the respective functions. 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 implemented as hardware or computer software driven 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 application.

The embodiment of the application can divide the functional modules of the controller according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiment of the present application is schematic, which is merely a logic function division, and other division manners may be implemented in practice.

The embodiment of the present application further provides a schematic hardware structure of a controller, as shown in fig. 10, where the controller 106 includes a processor 1061, and optionally, a memory 1062 and a communication interface 1063 connected to the processor 1061. The processor 1061, memory 1062, and communication interface 1063 are connected by a bus 1064.

The processor 1061 may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (DIGITAL SIGNAL processing, DSP), a microprocessor, a microcontroller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The processor 1061 may also be any other apparatus having processing functions, 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 for processing 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 (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, or an electrically erasable programmable read-only memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, 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, as embodiments of the application are not limited in this respect. The memory 1062 may be separate or integrated with the processor 1061. Wherein the memory 1062 may include computer program code. The processor 1061 is configured to execute computer program codes stored in the memory 1062, thereby implementing the control method provided by the embodiment of the present application.

Communication interface 1063 may be used to communicate with other devices or communication networks (e.g., ethernet, radio access network (radio access network, RAN), wireless local area network (wireless local area networks, WLAN), etc. communication interface 1063 may be a module, circuit, transceiver, or any means capable of enabling communication.

Bus 1064 may be a peripheral component interconnect (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, etc. The bus 1064 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.

The embodiment of the application also provides a computer readable storage medium, which comprises computer executable instructions that when run on a computer cause the computer to execute the control method of any one of the washing machines provided in the above embodiment.

The embodiment of the application also provides a computer program product containing computer execution instructions, which when run on a computer, cause the computer to execute the control method of any one of the washing machines provided in the above embodiment.

In the above embodiments, it may be implemented in whole or in part 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. When the computer-executable instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are fully or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer-executable instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, from one website, computer, server, or data center by wired (e.g., coaxial cable, fiber optic, digital subscriber line (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 devices including one or more servers, data centers, etc. that can be integrated with the media. Usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tape), optical media (e.g., DVD), or semiconductor media (e.g., solid State Disk (SSD)) or the like.

Although the 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 study of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "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 application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The present application is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A washing machine, comprising:

A rectangular box;

A cartridge assembly disposed within the housing;

The four safety switches are used for monitoring the movement condition of the cylinder assembly and correspond to the four side walls in the box body one by one; the safety switch comprises at least one wireless signal emitter and wireless signal receivers which are in one-to-one correspondence with the at least one wireless signal emitter, and each wireless signal emitter and each corresponding wireless signal receiver are oppositely arranged at two ends of the side wall corresponding to the safety switch; the direction of the signal sent by each wireless signal transmitter is parallel to the plane of the side wall corresponding to the safety switch;

The safety switches comprise wireless signal transmitters and wireless signal receivers, wherein the number of the wireless signal transmitters and the number of the wireless signal receivers are N, and N is an integer larger than 1;

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

the controller is electrically connected with the four safety switches; the controller is 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;

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 reaches a first dehydration rotating speed, reducing the dehydration rotating speed of the barrel assembly from the first dehydration rotating speed to a second dehydration rotating speed, wherein the first dehydration rotating speed is the highest dehydration rotating speed currently set by the dehydration program.

2. The washing machine as claimed in claim 1, wherein four inner corners of the cabinet are provided with fixing parts;

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.

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

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

4. A washing machine as claimed in claim 3, characterized in that,

The controller is further configured to:

in the case that the P wireless signal receivers include a first wireless signal receiver, which is a wireless signal receiver having a sidewall closest to the target safety switch, suspending the operation of the dehydration process;

after the operation of the dehydration process is suspended, an eccentricity adjustment process is performed;

after the eccentric adjustment program is completed, the dehydration program is continued to be executed.

5. A washing machine as claimed in claim 4, wherein,

The cylinder assembly comprises an inner cylinder and an outer cylinder;

The controller is further configured to:

In the case where the P wireless signal receivers do not include the first wireless signal receiver, if the dehydration speed of the drum assembly has not reached the first dehydration speed, a preset volume of water is injected into the inner drum.

6. The washing machine as claimed in any one of claims 1 to 5, wherein the wireless signal transmitter is an infrared signal transmitter and the wireless signal receiver is an infrared signal receiver.

7. A control method suitable for use in a washing machine as claimed in any one of claims 1 to 6, the method comprising:

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;

8. The method of claim 7, wherein the method further comprises:

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

If so, reducing the dehydration speed of the cartridge assembly from the first dehydration speed to a second dehydration speed;

if not, the water with preset volume is injected into the inner cylinder.