CN110924059A

CN110924059A - Control system and control method of washing machine

Info

Publication number: CN110924059A
Application number: CN201911238074.8A
Authority: CN
Inventors: 曹建胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-12
Filing date: 2019-12-06
Publication date: 2020-03-27
Anticipated expiration: 2039-12-06
Also published as: CN110924059B

Abstract

The invention relates to a control system and a control method of a washing machine, comprising a locking and unlocking switch, a control unit and a control unit, wherein the locking and unlocking switch is used for inputting a signal for requesting to lock an inner cylinder or a signal for requesting to unlock the inner cylinder; the control unit is used for acquiring one or more of signals and/or numerical values of whether the inner drum of the washing machine works or not and receiving the signal for requesting to lock the inner drum or the signal for requesting to unlock the inner drum; the locking and unlocking power device is used for judging whether the inner drum of the washing machine works or not according to the signal input by the locking and unlocking switch and the signal or/and the numerical value, and is started when the inner drum of the washing machine is judged to be in a safe state and the requirement of unlocking or locking the inner drum is met; otherwise, the starting can not be carried out; the locking and unlocking device is used for locking or unlocking the inner drum of the washing machine and provides locking or unlocking power by means of the locking and unlocking power device.

Description

Control system and control method of washing machine

Technical Field

The present invention relates to a washing machine, and more particularly, to a control system and a control method for a washing machine.

Background

The types of washing machines include pulsator washing machines, drum washing machines, agitator washing machines, and jet washing machines.

1. The power of the pulsator washing machine is about 400 watts generally, and the power consumption is less than 0.5 degree. The washing power of the drum washing machine is generally about 1200 and 2500 watts, and when the drum washing machine washes, the water temperature needs to be raised by an electric heater to achieve a good washing effect, and if the water temperature is increased to 60 ℃, the power consumption is about 1.5 ℃.

2. The drum type washing machine adopts a water-saving technology for controlling the water quantity, a heating washing technology, modes of rain, soaking and beating triple washing, three-dimensional water flow and the like, and a waterproof overflow function, so that the water function is brought into play.

3. The stirring type washing machine has the defects of strongest clothes cleaning force and washing powder saving: it is liked that the winding is more damaging than the former two ways and the noise is the biggest.

4. The jet flow type washing machine has short washing time, easy dirt washing, simple structure and less faults. However, because the water flow is strong, the clothes are easily twisted together, so that the clothes are unevenly washed, the clothes are seriously damaged, and the washing liquid is easily splashed during washing.

However, the above conventional washing machines have the following substantial problems:

1. the existing washing machine still has slight stains on clothes with serious dirt degree even after washing, and the effect of scrubbing by hands cannot be achieved.

2. When the existing drum washing machine is used for washing, clothes are thrown to a high position by a drum and then fall back to a low position for washing circularly, but the movement mode does not enable the clothes to be rubbed and washed uniformly under stress, and the washing effect is limited.

3. The existing washing machine cannot fully wash the washing powder under the condition of limited water changing times, so that part of the washing powder is left in clothes.

4. After the washing machine is used for a period of time, the appearance looks bright as new, but dirt and filth are hidden in the space between the outer wall of the inner barrel and the inner wall of the outer barrel, the dirt contains harmful bacteria, and if the dirt is not removed in time, the damage to the health of people can be caused.

5. When the inner cylinder and the outer cylinder in the prior art are disassembled, the inner cylinder needs to be positioned to ensure that the inner cylinder is installed in place when being restored, but in the prior art, the installation and alignment are troublesome work, the inner cylinder is not easy to align and install in place at one time, and repeated attempts are needed.

The applicant of the present invention has already solved the above-mentioned problems by applying for an invention patent in which the inner cylinder and the outer cylinder are disassembled by a locking and unlocking device. However, when the locking and unlocking device is unlocked, the inner barrel and the outer barrel can be separated, if the inner barrel still rotates at a high speed at the moment, the inner barrel can be thrown out under the action of centrifugal force, the safe use of the washing machine is seriously affected, and therefore a control system is required to ensure the locking and the safe use of the washing machine.

Disclosure of Invention

The invention designs a control system and a control method of a washing machine, which solve the technical problems that when an inner drum and an outer drum of the washing machine are connected through a locking and unlocking device, the inner drum and the outer drum can be separated when the locking and unlocking device is unlocked, and if the inner drum still rotates at high speed at the moment, the inner drum can be thrown out under the action of centrifugal force, so that the safe use of the washing machine is seriously influenced.

In order to solve the technical problems, the invention adopts the following scheme:

a control system of a washing machine includes a locking and unlocking switch for inputting a signal requesting to lock an inner tub or a signal requesting to unlock the inner tub; the control unit is used for acquiring one or more of signals and/or numerical values of whether the inner drum of the washing machine works or not and receiving the signal for requesting to lock the inner drum or the signal for requesting to unlock the inner drum; the locking and unlocking power device is used for judging whether the inner drum of the washing machine works or not according to the signal input by the locking and unlocking switch and the signal or/and the numerical value, and is started when the inner drum of the washing machine is judged to be in a safe state and the requirement of unlocking or locking the inner drum is met; otherwise, the starting can not be carried out; the locking and unlocking device is used for locking or unlocking the inner drum of the washing machine and provides locking or unlocking power by means of the locking and unlocking power device.

Preferably, the acquiring, by the control unit, one or more of a signal and/or a value indicating whether the washing machine drum is operated comprises:

(1) the signal of whether the inner cylinder rotating motor works or not, wherein the inner cylinder rotating motor provides power for the rotation of the inner cylinder of the washing machine;

(2) signal whether the inner tub of the washing machine is rotated;

(3) signal whether the outer casing of the washing machine vibrates;

(4) signal whether the inner drum rotating motor of the washing machine vibrates;

(5) signal whether the inner tub of the washing machine vibrates;

(6) noise signals generated by the washing machine;

(7) noise signal generated by the inner drum rotating motor of the washing machine;

(8) the inner drum door of the washing machine is opened or closed; the inner drum door of the washing machine can cover the opening of the inner drum;

(9) opening or closing signals of the door frame of the washing machine; the washing machine door frame can cover not only the opening of the inner barrel, but also the gap space between the inner barrel and the outer barrel.

Preferably, the locking and unlocking switch is a mechanical switch on the washing machine or a mobile client, the mobile client inputs an instruction in a voice control mode or a key or screen mode, and performs signal transmission with the control unit through bluetooth, WiFi or a mobile network.

Preferably, the washing machine further comprises an indicator light or a screen, which displays that the inner barrel is in a locking state or an unlocking state, or displays that the inner barrel is in a working state or a stopping state, or displays that the door of the washing machine is opened or closed; and/or, include the mechanical indicating device, it reveals that the inner cylinder is in locking state or unlocking state, or the inner cylinder is in working condition or stopped state, or reveal the washing machine door opens or closes the state; and/or, the device comprises a voice prompting device which prompts that the inner barrel is in a locking state or an unlocking state, or prompts that the inner barrel is in a working state or a stopping state, or prompts that a door of the washing machine is in an opening or closing state through sound.

Preferably, when the control unit acquires a driving power signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, which indicates that the inner cylinder rotating motor does not work, the control unit can start the locking or unlocking of the inner cylinder; the control unit collects a driving power supply signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, and the control unit cannot start the locking or unlocking of the inner cylinder when the inner cylinder rotating motor works.

Preferably, when the control unit collects a signal or a value indicating whether the inner drum of the washing machine rotates, if one or more values of the inner drum rotation sensor, the inner drum rotation travel switch, or the driving power supply of the inner drum rotating motor are collected, the control unit indicates that: the rotating speed or the number of rotating turns of the inner barrel of the washing machine in unit time is 0 or less than a safe value, and the control unit can start the locking or unlocking of the inner barrel; when the control unit collects the signal or the numerical value of whether the inner drum of the washing machine rotates, if one or more numerical values in the drive power supply of the inner drum rotation sensor, the inner drum rotation travel switch or the inner drum rotation motor are collected, the control unit indicates that: the rotating speed or the number of rotating turns of the inner drum of the washing machine in unit time is higher than a safe value, and the control unit cannot start the locking or unlocking of the inner drum.

Preferably, when the control unit collects a signal whether any one or more of the washing machine shell, the washing machine inner barrel and the washing machine inner barrel rotating motor vibrates, the control unit receives a vibration frequency or/and a vibration force value of the washing machine or the washing machine inner barrel rotating motor collected by the vibration sensor, and if the vibration frequency or/and the vibration amount are lower than or equal to a safe value allowing locking or unlocking to be started, the control unit can start locking or unlocking of the inner barrel; and if the vibration frequency or/and the vibration quantity is/are larger than the safety value allowing starting locking or unlocking, the control unit cannot start locking or unlocking the inner barrel.

Preferably, when the control unit collects a noise signal generated by the washing machine or the inner drum rotating motor of the washing machine, and receives a vibration noise value collected by the noise sensor, if the vibration noise value is lower than or equal to a safety value allowing starting locking or unlocking, the control unit can start locking or unlocking of the inner drum; and if the vibration noise value acquired by the noise sensor is greater than the allowable locking or unlocking safety value, the control unit cannot start the locking or unlocking of the inner cylinder.

Preferably, the vibration noise value output by the noise sensor comprises one or more of a noise frequency value, a noise intensity value or a noise category of the washing machine in unit time.

Preferably, an electrode is arranged on the door frame of the washing machine or the inner drum door of the washing machine, and the other electrode is arranged on the washing machine body; when the door frame of the washing machine or the door of the inner drum of the washing machine is closed, the two electrodes are contacted, a door closing signal of the door frame of the washing machine or the door of the inner drum of the washing machine is sent to the control unit, so that the locking or unlocking of the inner drum cannot be started at the moment, and when the door frame of the washing machine or the door of the inner drum of the washing machine is opened, the two electrodes are separated, a door opening signal of the door frame of the washing machine or the door of the inner drum of the washing;

preferably, a travel switch or a sensor is arranged on the washing machine inner barrel door, the washing machine door frame or the washing machine body, and when the washing machine door frame or the washing machine inner barrel door is closed, the travel switch or the sensor is triggered to send a washing machine door frame or washing machine inner barrel door closing signal to the control unit to indicate that the inner barrel cannot be started to be locked or unlocked; when the door frame of the washing machine or the inner drum door of the washing machine is opened, the travel switch or the sensor sends an opening signal of the door frame of the washing machine or the inner drum door of the washing machine to the control unit, so that the inner drum can be started to be locked or unlocked.

Preferably, the locking and unlocking device comprises a lock mechanism, a washing machine door frame and a washing machine outer barrel, wherein the washing machine inner barrel is positioned in the washing machine outer barrel, the washing machine door frame is matched with the opening of the washing machine outer barrel, and the washing machine inner barrel is locked in the washing machine outer barrel through the lock mechanism;

preferably, the locking and unlocking device comprises a lock mechanism, a washing machine door frame, a washing machine outer barrel and a washing machine shell, wherein the washing machine inner barrel is positioned in the washing machine outer barrel, the washing machine outer barrel is positioned in the washing machine shell, the washing machine door frame is matched with the washing machine outer barrel or an opening of the washing machine shell, and the washing machine inner barrel is locked in the washing machine outer barrel through the lock mechanism.

A control method of a washing machine, comprising the steps of: triggering the locking and unlocking switch so as to input a signal for locking the inner cylinder or a signal for unlocking the inner cylinder; the control unit judges whether the inner drum of the washing machine stops rotating or whether the number of rotating turns of the inner drum of the washing machine in unit time is within a safe value according to one or more signals or/and values; if the inner barrel of the washing machine stops rotating or the number of rotating turns of the inner barrel of the washing machine in unit time is within the safety number, the control unit starts a locking and unlocking power device, and the locking and unlocking power device acts on the locking and unlocking device to unlock or lock the inner barrel of the washing machine; if the number of the rotating turns of the inner drum of the washing machine in unit time is judged to be larger than the safety number, the control unit cannot start the locking and unlocking power device to ensure safety.

Preferably, the various signals or values include one or more of the following:

(2) signal whether the inner tub of the washing machine is rotated;

(3) signal whether the outer casing of the washing machine vibrates;

(5) signal whether the inner tub of the washing machine vibrates;

(6) noise signals generated by the washing machine;

(8) the inner drum door of the washing machine is opened or closed;

(9) opening or closing signal of the washing machine door frame.

Preferably, when the control unit acquires a driving power signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, which indicates that the inner cylinder rotating motor does not work, the control unit can start the locking or unlocking of the inner cylinder;

the control unit collects a driving power supply signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, and the control unit cannot start the locking or unlocking of the inner cylinder when the inner cylinder rotating motor works.

Preferably, when the control unit collects a signal or a numerical value indicating whether the inner drum of the washing machine rotates, if the rotating speed or the number of rotating turns of the inner drum of the washing machine collected in a unit time by a rotation sensor of the inner drum, a rotation travel switch of the inner drum or a driving power supply of a rotating motor of the inner drum is 0 or less than a safe numerical value, the control unit can start locking or unlocking the inner drum; when the control unit acquires a signal or a numerical value indicating whether the inner barrel of the washing machine rotates, if the rotating speed or the number of rotating turns of the inner barrel of the washing machine acquired in a drive power supply of an inner barrel rotating sensor, an inner barrel rotating travel switch or an inner barrel rotating motor in unit time is higher than a safe numerical value, the control unit cannot start locking or unlocking the inner barrel.

Preferably, an electrode is arranged on the washing machine door frame, and the other electrode is arranged on the washing machine; when the door frame of the washing machine is closed, the contact of the two electrodes can send a closing signal of the door frame of the washing machine to the control unit to indicate that the locking or unlocking of the inner cylinder cannot be started at the moment, and when the door frame of the washing machine is opened, the separation of the two electrodes can send an opening signal of the door frame of the washing machine to the control unit to indicate that the locking or unlocking of the inner cylinder can be started at the moment;

preferably, a travel switch or a sensor is arranged on a washing machine door frame or a washing machine body, and when the washing machine door frame is closed, the travel switch or the sensor is triggered to send a washing machine door frame closing signal to the control unit, so that the inner drum cannot be started to be locked or unlocked; when the washing machine door frame is opened, the travel switch or the sensor sends a washing machine door frame opening signal to the control unit, and the inner drum can be started to be locked or unlocked at the moment.

A control method of a washing machine, comprising the steps of: when the signal or the numerical value received by the control unit indicates that the inner cylinder is in a static state or a safe state and allows the inner cylinder to be unlocked or locked, the control unit unlocks or locks the door frame of the washing machine and the washing machine body based on the unlocking or locking signal request of the locking and unlocking switch, the inner cylinder can be moved out of the outer cylinder after unlocking, so that dirt on an interlayer between the inner wall of the outer cylinder and the outer wall of the inner cylinder of the washing machine is exposed and is convenient to clean, and the locking is realized by installing the cleaned inner cylinder or the replaced other inner cylinder back into the outer cylinder and.

A control method of a washing machine, comprising the steps of: triggering a washing machine door frame switch or a washing machine inner barrel door switch so as to input a washing machine door frame opening signal or a washing machine inner barrel door opening signal; the control unit receives a signal for opening a door frame of the washing machine or a signal for opening an inner drum door of the washing machine and then instructs a rotating motor of the inner drum of the washing machine to stop rotating or rotate at a reduced speed; after the rotating motor of the inner drum of the washing machine stops rotating or rotates at a reduced speed, the control unit opens a door frame of the washing machine or a door of the inner drum of the washing machine.

A locking and unlocking device comprises a movable locking piece, a lock tongue and a locked part, wherein the locked part is positioned at the other end of a locked transmission piece and is of a convex structure or a groove structure; one end of the movable locking piece is provided with one or more movable locking tongues, and when the cross section area of the through hole of one or more locking tongues is smaller, the locked part cannot pass through a passing hole formed by one or more locking tongues so as to be locked; when the cross section area of the through hole is larger, the locked part can be unlocked through a passing hole formed by one or more lock tongues; the movable locking piece moves in the through hole, so that the lock tongue moves back and forth between a position with a smaller cross section area of the through hole and a position with a larger cross section area of the through hole.

A method for dismounting and mounting an inner barrel of a washing machine comprises the following steps:

step 1, stopping the rotation of the inner cylinder or controlling the rotation speed of the inner cylinder within a safety range; step 2, opening a door frame of the washing machine;

step 3, separating the inner cylinder from the outer cylinder;

step 4, the inner cylinder is installed in the outer cylinder again and is connected with the outer cylinder through a connecting device;

and 5, closing the door frame of the washing machine.

Preferably, the starting/stopping switch of the washing machine is triggered in the step 1 so as to stop the rotation of the inner drum or control the rotation speed of the inner drum within a safe range;

or/and triggering a washing machine door frame locking and unlocking switch to start a washing machine door frame locking and unlocking device in the step 2, and then opening the washing machine door frame after the washing machine door frame locking and unlocking device enters an unlocking state;

or/and triggering a washing machine barrel locking and unlocking switch in the step 3 to start the washing machine barrel locking and unlocking device to enter an unlocking state, and then separating the inner barrel from the outer barrel;

or/and triggering a washing machine cylinder locking and unlocking switch to start a washing machine cylinder locking and unlocking device to enter a locking state after the washing machine cylinder transmission element is connected with the shaft of the driving motor in the step 4;

or/and after the washing machine door frame is closed in the step 5, triggering the washing machine door frame locking and unlocking switch to start the washing machine door frame locking and unlocking device to enter a locking state.

step 1, opening a door frame of the washing machine when the inner barrel does not rotate or the rotating speed of the inner barrel is within a safety range;

step 2, separating the inner cylinder from the outer cylinder;

step 3, the inner cylinder is installed in the outer cylinder again and is connected with the outer cylinder through a connecting device; and 4, closing the door frame of the washing machine.

Preferably, in the step 1, the washing machine door frame locking and unlocking device is started to enter an unlocking state by triggering the washing machine door frame locking and unlocking switch when the inner cylinder does not rotate or the inner cylinder rotates within a safety range, and then the washing machine door frame is started;

or/and triggering a washing machine barrel locking and unlocking switch in the step 2 to start the washing machine barrel locking and unlocking device to enter an unlocking state, and then separating the inner barrel from the outer barrel;

or/and after the transmission element of the washing machine barrel is connected with the shaft of the driving motor in the step 3, triggering a washing machine barrel locking and unlocking switch to start a washing machine barrel locking and unlocking device to enter a locking state;

or/and closing the washing machine door frame in the step 4, triggering a washing machine door frame locking and unlocking switch to start the washing machine door frame locking and unlocking device to enter a locking state.

step 1, stopping the rotation of the inner barrel or controlling the rotation speed of the inner barrel within a safe range and then unlocking a door frame of the washing machine;

step 2, opening a door frame of the washing machine;

step 3, separating the inner cylinder from the outer cylinder;

and 5, closing the door frame of the washing machine.

Preferably, the starting/stopping switch of the washing machine is triggered in the step 1, so that the rotation of the inner barrel is stopped or the rotating speed of the inner barrel is controlled within a safe range, and then the door frame locking and unlocking device of the washing machine is started to enter an unlocking state;

or/and opening the washing machine door frame after the washing machine door frame is unlocked in the step 2;

or/and after the transmission element of the washing machine barrel is connected with the shaft of the driving motor in the step 4, triggering a washing machine barrel locking and unlocking switch to start a washing machine barrel locking and unlocking device to enter a locking state;

or/and closing the washing machine door frame in the step 5, triggering a washing machine door frame locking and unlocking switch to start the washing machine door frame locking and unlocking device to enter a locking state.

step 1, stopping the rotation of the inner cylinder or controlling the rotation speed of the inner cylinder within a safe range, and then opening a door frame of the washing machine to separate the inner cylinder from the outer cylinder;

and 2, reinstalling the inner barrel into the outer barrel, and connecting the inner barrel with the outer barrel through a connecting device to close the door frame of the re-washing machine.

Preferably, a common switch for locking and unlocking the inner cylinder and the door frame of the washing machine is triggered in the step 1, so that the rotation of the inner cylinder is stopped or the rotation speed of the inner cylinder is controlled within a safe range, then the locking and unlocking device of the cylinder of the washing machine and the locking and unlocking device of the door frame of the washing machine are started to enter an unlocking state, and the inner cylinder is separated from the outer cylinder after the door frame of the washing machine is opened;

or/and in the step 2, after the transmission element of the washing machine barrel is connected with the shaft of the driving motor, the door frame of the washing machine is closed, and then the common switch for locking and unlocking the washing machine barrel and the door frame of the washing machine is triggered to start the locking and unlocking device of the washing machine barrel and the locking and unlocking device of the door frame of the washing machine to enter a locking state.

A multifunctional washing machine is characterized in that: comprises an outer cylinder, the inner part of which provides an installation space for the inner cylinder; the inner cylinder is formed by combining an inner cylinder base and an inner cylinder ring, the inner cylinder base and the inner cylinder ring can rotate in the same direction or in the opposite direction, and washing blocks are arranged on the inner walls of the inner cylinder base and the inner cylinder ring; the first driving motor is used for providing rotary power for the inner cylinder ring and is connected with the inner cylinder ring through a first transmission structure; the second driving motor is used for providing rotary power for the inner cylinder base and is connected with the inner cylinder base through a second transmission structure; and the locking and unlocking device is used for locking or unlocking the second transmission structure.

Preferably, the second transmission structure comprises an inner transmission and a locked transmission; the inner transmission piece is driven to rotate by the second driving motor, a through hole is formed in the inner transmission piece, one end of the locked transmission piece is fixedly connected with the inner cylinder base, and the other end of the locked transmission piece can be locked or unlocked by the locking and unlocking device in the through hole.

Preferably, the locking and unlocking device comprises a movable locking piece, a locking tongue and a locked part, wherein the locked part is positioned at the other end of the locked transmission piece and is of a convex structure or a concave structure; one end of the movable locking piece is provided with one or more movable locking tongues, and when the cross section area of the through hole of one or more locking tongues is smaller, the locked part cannot pass through a passing hole formed by one or more locking tongues so as to be locked; when the cross section area of the through hole is larger, the locked part can be unlocked through a passing hole formed by one or more lock tongues; the movable locking piece moves in the through hole, so that the lock tongue moves back and forth between a position with a smaller cross section area of the through hole and a position with a larger cross section area of the through hole.

Preferably, the locking and unlocking device further comprises a reset elastic member, the reset elastic member is sleeved on the moving locking member and clamped between the blocking piece of the moving locking member and the clamping portion of the inner transmission member, or the reset elastic member is arranged between the moving locking member and the inner transmission member and clamped between the blocking piece of the moving locking member and the clamping portion of the inner transmission member, and the reset elastic member not only can help the moving locking member reset, but also can enable the moving locking member and the inner transmission member to synchronously rotate.

Preferably, the other end of the movement locking piece is matched with a driving device to realize the movement of the movement locking piece in the through hole, so that the locking or unlocking is realized.

Preferably, the driving device comprises an unlocking motor and a driving rod, the unlocking motor acts on the driving rod, and a bulge on the driving rod pushes the other end of the movable locking piece in the rotating process; or the driving device is an air cylinder, and an air cylinder rod of the air cylinder can push the other end of the movable locking piece; or the driving device comprises an unlocking motor and a screw rod, and the unlocking motor enables the screw rod to extend out to push the other end of the movable locking piece when acting on the screw rod.

Preferably, the inner transmission member is connected with a second driven wheel, the second driving motor acts on the second driving wheel to rotate, and the second driven wheel and the second driving wheel are transmitted through a second transmission belt;

or the inner transmission member is connected with a second driven wheel, the second driving motor acts on the second driving wheel to rotate, and the second driven wheel and the second driving wheel are both gears and are in meshing transmission.

Preferably, the first transmission structure comprises an outer transmission member and a connecting member, one end of the outer transmission member is driven by the first driving motor to rotate, one end of the connecting member is connected with the inner cylinder ring, and the other end of the connecting member and the other end of the outer transmission member are of a detachable structure.

Preferably, the other end of the connecting piece is connected with the other end of the outer transmission piece through a connecting device capable of automatically calibrating; the connecting device comprises a positioning piece and a telescopic piece, the positioning piece is connected with the other end of the connecting piece, and the positioning piece is coaxial with the inner cylinder and is axially provided with a passing hole for the transmission piece to pass through; the positioning piece is also provided with a positioning part; the telescopic piece is arranged in the mounting hole at the other end of the outer transmission piece and is connected with the elastic body in the mounting hole; when the positioning piece approaches to the outer transmission piece, the telescopic piece directly enters the positioning part; or when the telescopic part is pushed back towards the direction of the outer transmission part by the positioning part, the positioning part rotates to the corresponding position of the positioning part or the telescopic part rotates to the corresponding position of the positioning part, and the telescopic part extends out under the help of the elastic body and enters the positioning part;

or the outer transmission part is provided with a positioning part, and the telescopic part is connected with the positioning part and the elastic body; when the positioning piece approaches to the outer transmission piece, the telescopic piece directly enters the positioning part; or the telescopic piece is pushed back towards the positioning piece by the outer transmission piece, when the positioning part rotates to the telescopic piece or the telescopic piece rotates to the corresponding position of the positioning part, the telescopic piece enters the positioning part under the help of the elastic body.

Preferably, the inner transmission member is mounted inside the outer transmission member through a second bearing and coaxially arranged with the outer transmission member, the outer transmission member is connected with a first driven wheel, the first driving motor acts on the first driving wheel to rotate, and the first driven wheel and the first driving wheel are transmitted through a first transmission belt; alternatively, the first driven wheel and the first driving wheel are both gears and are in meshing transmission.

An automatically calibratable connection device, comprising: the positioning piece is connected with the other end of the connecting piece, and is coaxial with the inner cylinder and provided with a through hole in the axial direction for the transmission piece to pass through;

the positioning piece is also provided with a positioning part; the telescopic piece is arranged in the mounting hole at the other end of the outer transmission piece and is connected with the elastic body in the mounting hole; when the positioning piece approaches to the outer transmission piece, the telescopic piece directly enters the positioning part; or when the telescopic part is pushed back towards the direction of the outer transmission part by the positioning part, the positioning part rotates to the corresponding position of the positioning part or the telescopic part rotates to the corresponding position of the positioning part, and the telescopic part extends out under the help of the elastic body and enters the positioning part;

An automatically calibratable connection device, comprising: the positioning piece is connected with the inner cylinder;

the positioning piece is also provided with a positioning part; the telescopic piece is arranged at the other end of the outer transmission piece and is connected with the elastic body; when the positioning piece approaches to the outer transmission piece, the telescopic piece directly enters the positioning part; or the telescopic part is pushed back towards the direction of the outer transmission part by the positioning part, and when the positioning hole rotates to the corresponding position of the positioning part or the telescopic part rotates to the corresponding position of the positioning part, the telescopic part extends out under the help of the elastic body and enters the positioning part;

or the outer transmission part is provided with a positioning part, and the telescopic part is connected with the positioning part and is connected with the elastic body in the mounting hole;

when the positioning piece approaches to the outer transmission piece, the telescopic piece directly enters the positioning part; or the telescopic piece is extruded and retracted by the outer transmission piece, when the positioning part rotates to the telescopic piece or the telescopic piece rotates to the corresponding position of the positioning part, the telescopic piece extends out under the help of the elastic body and enters the positioning part.

The control system and the control method of the washing machine have the following beneficial effects:

(1) when the locking and unlocking device of the inner barrel is used, the locking or unlocking of the inner barrel can be carried out only when the washing machine is in an unworked state or a safe state by acquiring a plurality of signals or numerical values, so that the safe use of the washing machine is ensured.

(2) The invention not only simulates the effect of washing clothes by hands of people through the reverse movement of the washing block, but also can disassemble the inner cylinder from the outer cylinder, thereby being convenient for cleaning and removing dirt and harmful bacteria between the inner cylinder and the outer cylinder.

(3) The locking and unlocking device not only can firmly lock the inner barrel, but also can realize automatic opening or locking through the driving device, and is convenient for a user to operate.

(4) The connecting device capable of automatically calibrating can accurately install the inner cylinder, and an installer can ensure that the transmission structure is connected in place only by rotating the inner cylinder without observing through naked eyes.

(5) The inner cylinder can be detached from the outer cylinder, so that the inner cylinder can be directly pulled out as a container for containing clothes, and the clothes in the inner cylinder can be dried without being transferred to another container, thereby changing the traditional clothes drying mode, improving the drying efficiency and saving the time.

(6) The inner barrel in the invention can be cleaned frequently due to convenient disassembly, thereby ensuring sanitary use.

(7) The inner barrel is convenient to disassemble, so that a plurality of inner barrels can be prepared for replacement, each inner barrel can clean different clothes, the cross cleaning of outer clothes and underwear is avoided, and the more sanitary and safe clothes cleaning is ensured.

Drawings

Fig. 1 is a perspective view illustrating a multi-functional washing machine according to the present invention.

Fig. 2 is a sectional view of the drum of the multi-functional washing machine of the present invention when locked.

Fig. 3 is a sectional view of the drum of the multi-function washing machine of the present invention when unlocked.

Fig. 4 is an axial sectional view of a locking device of the multi-functional washing machine in accordance with the present invention.

Fig. 5 is a schematic view of a positioning member of the multi-functional washing machine of the present invention.

FIG. 6 is a schematic view of the positioning rod and the positioning member of the multifunctional washing machine according to the present invention;

FIG. 7 is a block diagram of a control system of a washing machine according to a first embodiment of the present invention;

FIG. 8 is a block diagram of a control system of a washing machine according to a second embodiment of the present invention;

fig. 9 is a schematic view of the structure of the washing machine door of the present invention.

Description of reference numerals:

1-outer cylinder; 11-a scaffold; 12-unlocking the motor; 13-a drive rod; 14-a bump; 15-a housing; 20 — a first drive motor; 21 — a first drive belt; 22 — a first drive wheel; 23 — a first driven wheel; 24-an outer transmission member; 25-inner transmission member; 26-an elastic member; 27-a positioning element; 271-positioning part; 28-a connector; 29-a telescoping member; 30-a second drive motor; 31 — a second drive wheel; 32-a second belt; 33 — a second driven wheel; 41-moving the locking piece; 42-a return spring; 43-a bolt; 44 — locked transmission member; 45-the part with smaller cross section; 46-the larger cross-sectional area; 47 — locked portion; 51 — a first bearing; 52 — a second bearing; 53-third bearing; 6, an inner cylinder; 62-inner cylinder base; 61-inner cylinder ring; 63-washing blocks; 64-washing the block; 71- (IV) -; 72.

Detailed Description

The invention is further described below with reference to fig. 1 to 8:

as shown in fig. 1, a multi-functional washing machine includes an outer tub 1, the inside of which provides an installation space for an inner tub 6; the inner cylinder 6 is formed by combining an inner cylinder base 62 and an inner cylinder ring 61, the inner cylinder base 62 and the inner cylinder ring 61 can rotate in the same direction or in the opposite direction, and washing blocks 63 are arranged on the inner walls of the inner cylinder base 62 and the inner cylinder ring 61; 64; the first driving motor 20 provides rotary power for the inner cylinder ring 61, and the first driving motor 20 is connected with the inner cylinder ring 61 through a first transmission structure; the second driving motor 30 provides rotary power for the inner cylinder base 62, and the second driving motor 30 is connected with the inner cylinder base 62 through a second transmission structure; the locking and unlocking device locks or unlocks the second transmission structure.

As shown in fig. 2 and 3, the second transmission structure includes the inner transmission member 25 and the locked transmission member 44. The inner transmission member 25 is driven to rotate by the second driving motor 30, a through hole is formed in the inner transmission member 25, one end of the locked transmission member 44 is fixedly connected with the inner cylinder base 62, and the other end of the locked transmission member 44 can be locked or unlocked by the locking and unlocking device in the through hole.

As shown in fig. 4, the locking and unlocking means includes a moving locking member 41, a latch 43, and a locked portion 47, the locked portion 47 being located at the other end of the locked transmission member 44 and having a convex structure; one end of the movable locking piece 41 is provided with a plurality of movable locking tongues 43, and the locking tongues 43 can be balls. When the plural locking tongues 43 are located at the small cross-sectional area 45 of the through hole, the locked portion 47 cannot be locked by the passage hole formed by the plural locking tongues 43; when the plural locking tongues 43 are at the large cross-sectional area 46 of the through-hole, the locked portion 47 can be unlocked through the passage hole formed by the plural locking tongues 43; the movable locking member 41 moves in the through hole so that the latch 43 moves back and forth between a smaller cross-sectional area 45 of the through hole and a larger cross-sectional area 46 of the through hole.

The locking and unlocking device further comprises a reset elastic member 42, the reset elastic member 42 is sleeved on the movable locking member 41 and clamped between the blocking piece of the movable locking member 41 and the blocking portion of the inner transmission member 25, and the reset elastic member 42 not only can help the movable locking member 41 to reset, but also can enable the movable locking member 41 and the inner transmission member 25 to synchronously rotate.

The other end of the movable locking piece 41 is matched with a driving device to realize the movement in the through hole, thereby realizing the locking or unlocking.

The driving device comprises an unlocking motor 12 and a driving rod 13, wherein the unlocking motor 12 acts on the driving rod 13, and a bulge 14 on the driving rod 13 pushes the other end of the movable locking piece 41 in the rotating process; the unlocking motor 13 is mounted on the bracket 11.

Alternatively, the driving means is a cylinder, and a cylinder rod of the cylinder can push and move the other end of the locking member 41.

A second driven pulley 33 is connected to the inner transmission member 25, the second driving motor 30 rotates the second driving pulley 31, and the second driven pulley 33 and the second driving pulley 31 are driven by a second driving belt 32.

The first transmission structure comprises an outer transmission member 24 and a connecting member 28, one end of the outer transmission member 24 is driven by the first driving motor 20 to rotate, one end of the connecting member 28 is connected with the inner cylinder ring 61, and the other end of the connecting member 28 and the other end of the outer transmission member 24 are of a detachable structure.

The other end of the connecting piece 28 is connected with the other end of the outer transmission piece 24 through a connecting device capable of automatically calibrating; the connecting device comprises a positioning part 27 and a telescopic part 29, the positioning part 27 is connected with the other end of the connecting part 28, the positioning part 27 is coaxial with the inner cylinder 6 and is provided with a through hole for the locked transmission part 44 to pass through in the axial direction, and the positioning part 27 is also provided with a positioning part 271. As shown in fig. 5, the positioning member 27 is circular, and a plurality of positioning portions 217 are formed on the circumference, and the positioning portions 217 may be circular holes or non-circular holes. The telescopic piece 29 is arranged in a mounting hole at the other end of the outer transmission piece 24 and is connected with the elastic body 26 in the mounting hole; when the positioning member 27 approaches the outer transmission member 24, the telescopic member 29 directly enters the positioning portion 271, or when the telescopic member 29 is pressed by the positioning member 27 and retracted into the mounting hole, the positioning member 27 rotates and the positioning portion 271 rotates to the position of the telescopic member 29, the telescopic member 29 extends with the help of the elastic body 26 and enters the positioning portion 271.

The inner transmission member 25 is mounted inside the outer transmission member 24 through the second bearing 52 and is coaxially arranged with the inner transmission member 25, the first driven wheel 23 is connected to the outer transmission member 24, the first driving motor 20 acts on the first driving wheel 22 to rotate, and the first driven wheel 23 and the first driving wheel 22 are transmitted through the first transmission belt 21.

The first bearing 51 is located between the outer transmission member 24 and the housing 15 and serves to support the outer transmission member 24 and ensure that the housing 15 is not affected when the outer transmission member 24 is rotated.

The third bearing 53 is located between the locked transmission member 44 and the connecting member 28 or/and the securing member 27 to ensure that the connecting member 28 or/and the securing member 27 are not affected when the locked transmission member 44 is rotated.

The working principle of the multifunctional washing machine of the invention is as follows:

as shown in fig. 2, when the washing machine is normally washing, when the plurality of locking tongues 43 are located at the small cross-sectional area 45 of the through hole, the locked portion 47 cannot be locked by the through hole formed by the plurality of locking tongues 43, and the inner tub 6 rotating at a high speed is not separated from the outer tub 1 by a centrifugal force. While the first and second transmission structures operate so that the inner cylinder base 62 and the inner cylinder ring 61 rotate in the same direction or in opposite directions.

Specifically, the transmission direction of the force in the first transmission structure is as follows: the first driving motor 20, the first driving wheel 22, the first transmission belt 21, the first driven wheel 23, the outer transmission piece 24, the telescopic piece 29, the positioning piece 27, the connecting piece 28 and the inner cylinder ring 61.

The transmission direction of the forces in the second transmission is as follows: the second drive motor 30, the second drive wheel 31, the second belt 32, the second driven wheel 33, the inner transmission member 25, the return elastic member 42, the movement locking member 41, the lock tongue 43, the locked portion 47, the locked transmission member 44, and the inner cylinder base 62.

Since the inner drum base 62 and the inner drum ring 61 can rotate reversely, the respective washing blocks can scrub the clothes, the clothes are washed more cleanly, and water can be saved.

As shown in fig. 3, when the inner cylinder needs to be cleaned after both transmission structures stop working, the unlocking motor 12 is started, the unlocking motor 12 makes the protrusion 14 on the driving rod 13 act on the movable locking member 41 to move, and makes the locking tongue 43 on the movable locking member 41 move to the place 46 with larger cross section of the through hole, the locked part 47 can be unlocked through the passing hole formed by the locking tongues 43, and thus the whole inner cylinder 6 can be taken out from the outer cylinder 1 for cleaning.

After the cleaning is finished, the inner cylinder 6 is arranged in the outer cylinder 1, the connecting device capable of automatically calibrating is convenient for the inner cylinder 6 to be arranged in place at one time, the unlocking motor 12 is started again at the moment, the protrusion 14 is separated from the movable locking piece 41, the movable locking piece 41 is reset under the action of the reset elastic piece 42, and the lock tongue 43 is enabled to return to the position 45 with the smaller sectional area to lock the locked transmission piece 44 again.

As shown in fig. 7, for safe use of the washing machine, a control system of the washing machine is required to ensure that the locking and unlocking device is unlocked or locked when the inner tub is in a stopped state or a safe state.

A control system of a washing machine includes a locking and unlocking switch for inputting a signal requesting to lock an inner tub or a signal requesting to unlock the inner tub; the control unit is used for acquiring one or more of signals and/or numerical values of whether the inner drum of the washing machine works or not and receiving a signal for requesting to lock the inner drum or a signal for requesting to unlock the inner drum; the locking and unlocking power device is used for judging whether the inner drum of the washing machine works or not according to the signal input by the locking and unlocking switch and the signal or/and the value, and is started when the inner drum of the washing machine is judged to be in a safe state and the requirement of unlocking or locking the inner drum exists; otherwise, the starting can not be carried out; the locking and unlocking device is used for locking or unlocking the inner drum of the washing machine and provides locking or unlocking power by means of the locking and unlocking power device.

The control unit collects one or more of signals and/or values of whether the inner drum of the washing machine works or not, and comprises the following steps:

1. the inner cylinder rotating motor provides power for the rotation of the inner cylinder of the washing machine;

2. signal whether the inner tub of the washing machine is rotated;

3. signal whether the outer casing of the washing machine vibrates;

4. signal whether the inner drum rotating motor of the washing machine vibrates;

5. signal whether the inner tub of the washing machine vibrates;

6. noise signals generated by the washing machine;

7. noise signal generated by the inner drum rotating motor of the washing machine;

8. the inner drum door of the washing machine is opened or closed; the inner drum door of the washing machine can cover the opening of the inner drum;

9. opening or closing signals of the door frame of the washing machine; the washing machine door frame can cover not only the inner drum opening but also the gap space between the inner drum and the outer drum.

As shown in fig. 8, the mobile terminal is further included, and the mobile terminal sends a signal for locking the inner barrel or a signal for unlocking the inner barrel to the control unit through a wireless network. The mobile terminal may be a mobile phone or a tablet computer,

the working principle of the washing machine control system of the invention is as follows:

the user triggers the locking and unlocking switch to input a signal for locking the inner cylinder or a signal for unlocking the inner cylinder.

The control unit judges whether the inner drum of the washing machine stops rotating or whether the number of rotating turns of the inner drum of the washing machine in unit time is within the safety value according to various signals or values.

Specifically, the following modes are included:

1. the control unit acquires a driving power signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, and can start the locking or unlocking of the inner cylinder when the inner cylinder rotating motor does not work; the control unit collects a driving power supply signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, and the control unit cannot start the locking or unlocking of the inner cylinder when the inner cylinder rotating motor works.

2. When the control unit collects the signal or the numerical value of whether the inner drum of the washing machine rotates, if one or more numerical values in the drive power supply of the inner drum rotation sensor, the inner drum rotation travel switch or the inner drum rotation motor are collected, the control unit indicates that: the rotating speed or the number of rotating turns of the inner barrel of the washing machine in unit time is 0 or less than a safe value, and the control unit can start the locking or unlocking of the inner barrel; when the control unit collects the signal or the numerical value of whether the inner drum of the washing machine rotates, if one or more numerical values in the drive power supply of the inner drum rotation sensor, the inner drum rotation travel switch or the inner drum rotation motor are collected, the control unit indicates that: the rotating speed or the rotating number of turns of the inner drum of the washing machine in unit time is higher than a safe numerical value, and the control unit cannot start the locking or unlocking of the inner drum.

3. When the control unit collects signals whether any one or more of the washing machine shell, the washing machine inner barrel and the washing machine inner barrel rotating motor vibrate or not, the vibration frequency or/and the vibration force numerical value of the washing machine or the washing machine inner barrel rotating motor are collected by the vibration sensor are received, and if the vibration frequency or/and the vibration quantity are lower than or equal to the starting locking or unlocking safety numerical value, the control unit can start the inner barrel to lock or unlock; and if the vibration frequency or/and the vibration quantity is/are larger than the safety value allowing the locking or unlocking to be started, the control unit cannot start the locking or unlocking of the inner barrel.

4. When the control unit collects a noise signal generated by the washing machine or the rotary motor of the inner barrel of the washing machine, and receives a vibration noise value collected by the noise sensor, if the vibration noise value is lower than or equal to a starting-allowed locking or unlocking safety value, the control unit can start locking or unlocking the inner barrel; if the vibration noise value acquired by the noise sensor is greater than the allowable locking or unlocking safety value, the control unit cannot start the locking or unlocking of the inner cylinder.

5. The vibration noise value output by the noise sensor comprises one or more of a noise frequency value, a noise intensity value or a noise type of the washing machine in unit time.

6. The door frame or the inner drum door of the washing machine is provided with one electrode, and the washing machine body is provided with the other electrode; when the door frame of the washing machine or the door of the inner drum of the washing machine is closed, the two electrodes are contacted, a door closing signal of the door frame of the washing machine or the door of the inner drum of the washing machine is sent to the control unit to indicate that the locking or unlocking of the inner drum cannot be started at the moment, and when the door frame of the washing machine or the door of the inner drum of the washing machine is opened, the two electrodes are separated, a door opening signal of the door frame of the washing machine or the door of the inner;

7. the door of the inner drum of the washing machine, the door frame of the washing machine or the washing machine body is provided with a travel switch or a sensor, when the door frame of the washing machine or the door of the inner drum of the washing machine is closed, the travel switch or the sensor is triggered to send a door closing signal of the door frame of the washing machine or the door of the inner drum of the washing machine to the control unit, so that the locking or unlocking of the inner drum; when the door frame of the washing machine or the inner drum door of the washing machine is opened, the travel switch or the sensor sends an opening signal of the door frame of the washing machine or the inner drum door of the washing machine to the control unit to indicate that the inner drum can be started to be locked or unlocked at the moment.

In addition, the control accuracy can be ensured by simultaneously acquiring a plurality of signals or/and values, and only when the plurality of signals or the plurality of values are simultaneously met, the inner barrel of the washing machine is accurately judged to be static or in a safe state, so that unlocking or locking can be carried out.

If the inner barrel of the washing machine stops rotating or the number of rotating turns of the inner barrel of the washing machine in unit time is within the safety number, the control unit starts the locking and unlocking power device, and the locking and unlocking power device acts on the locking and unlocking device to unlock or lock the inner barrel of the washing machine. If the number of the rotating turns of the inner drum of the washing machine in unit time is judged to be larger than the safety number, the control unit cannot start the locking and unlocking power device to ensure safety.

Based on the above embodiment, the inner cylinder rotating motor includes the first driving motor 20 for driving the inner cylinder ring 61 to rotate and the second driving motor 30 for driving the inner cylinder base 62 to rotate, and the control unit can simultaneously acquire the signal indicating whether the first driving motor 20 and the second driving motor 30 are working, so as to determine whether the inner cylinder is working.

Based on the above embodiment, the locking and unlocking power device is the unlocking motor 12.

As shown in fig. 9, the washing machine inner drum door 72 can cover the inner drum opening; the washing machine door frame 71 can cover not only the inner tub opening but also a gap space between the inner and outer tubs. The washing machine inner tub door 72 is mounted on the washing machine door frame 71. The conventional washing machine has only a washing machine inner tub door 72 without a washing machine door frame 71.

The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. A control system of a washing machine, characterized in that: comprises that

The locking and unlocking switch is used for inputting a signal for requesting to lock the inner cylinder or a signal for requesting to unlock the inner cylinder;

the control unit is used for acquiring one or more of signals and/or numerical values of whether the inner drum of the washing machine works or not and receiving the signal for requesting to lock the inner drum or the signal for requesting to unlock the inner drum;

the locking and unlocking power device is used for judging whether the inner drum of the washing machine works or not according to the signal input by the locking and unlocking switch and the signal or/and the numerical value, and is started when the inner drum of the washing machine is judged to be in a safe state and the requirement of unlocking or locking the inner drum is met; otherwise, the starting can not be carried out;

the locking and unlocking device is used for locking or unlocking the inner drum of the washing machine and provides locking or unlocking power by means of the locking and unlocking power device.

2. The control system of a washing machine as claimed in claim 1, wherein:

the control unit collects one or more of signals and/or numerical values of whether the inner drum of the washing machine works or not, and comprises the following steps:

(2) signal whether the inner tub of the washing machine is rotated;

(3) signal whether the outer casing of the washing machine vibrates;

(5) signal whether the inner tub of the washing machine vibrates;

(6) noise signals generated by the washing machine;

(8) the inner drum door of the washing machine is opened or closed;

(9) opening or closing signal of the washing machine door frame.

3. The control system of a washing machine according to any one of claims 1-2, wherein:

the control unit acquires a driving power signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, and can start the locking or unlocking of the inner cylinder when the inner cylinder rotating motor does not work; the control unit acquires a driving power supply signal of the inner cylinder rotating motor or a rotating shaft rotating signal of the inner cylinder rotating motor, which indicates that the inner cylinder rotating motor is working, and the control unit cannot start the locking or unlocking of the inner cylinder;

or/and when the control unit collects the signal or the numerical value of whether the inner drum of the washing machine rotates, if one or more numerical values in the inner drum rotation sensor, the inner drum rotation travel switch or the driving power supply of the inner drum rotating motor are collected, the numerical value indicates that: the rotating speed or the number of rotating turns of the inner barrel of the washing machine in unit time is 0 or less than a safe value, and the control unit can start the locking or unlocking of the inner barrel; when the control unit collects the signal or the numerical value of whether the inner drum of the washing machine rotates, if one or more numerical values in the drive power supply of the inner drum rotation sensor, the inner drum rotation travel switch or the inner drum rotation motor are collected, the control unit indicates that: the rotating speed or the number of rotating turns of the inner barrel of the washing machine in unit time is higher than a safe value, and the control unit cannot start the locking or unlocking of the inner barrel;

or/and when the control unit collects any one or more signals of vibration of the washing machine shell, the washing machine inner barrel and the washing machine inner barrel rotating motor, the vibration frequency or/and the vibration force value of the washing machine or the washing machine inner barrel rotating motor are collected by the vibration sensor, and if the vibration frequency or/and the vibration quantity are lower than or equal to the starting locking or unlocking safety value, the control unit can start the inner barrel to lock or unlock; if the vibration frequency or/and the vibration quantity are/is larger than the starting locking or unlocking safety value, the control unit cannot start the locking or unlocking of the inner barrel;

or/and when the control unit collects a noise signal generated by the washing machine or the inner drum rotating motor of the washing machine, and receives a vibration noise value collected by the noise sensor, if the vibration noise value is lower than or equal to a safe value allowing starting locking or unlocking, the control unit can start locking or unlocking the inner drum; if the vibration noise value acquired by the noise sensor is greater than the allowable locking or unlocking safety value, the control unit cannot start locking or unlocking the inner cylinder;

or/and an electrode is arranged on the washing machine door frame or the washing machine inner barrel door, and the other electrode is arranged on the washing machine body; when the door frame of the washing machine or the door of the inner drum of the washing machine is closed, the two electrodes are contacted, a door closing signal of the door frame of the washing machine or the door of the inner drum of the washing machine is sent to the control unit, so that the locking or unlocking of the inner drum cannot be started at the moment, and when the door frame of the washing machine or the door of the inner drum of the washing machine is opened, the two electrodes are separated, a door opening signal of the door frame of the washing machine or the door of the inner drum of the washing;

or/and a travel switch or a sensor is arranged on the washing machine inner barrel door, the washing machine door frame or the washing machine body, when the washing machine door frame or the washing machine inner barrel door is closed, the travel switch or the sensor is triggered to send a washing machine door frame or washing machine inner barrel door closing signal to the control unit, so that the inner barrel cannot be started to be locked or unlocked; when the door frame of the washing machine or the inner drum door of the washing machine is opened, the travel switch or the sensor sends an opening signal of the door frame of the washing machine or the inner drum door of the washing machine to the control unit, so that the inner drum can be started to be locked or unlocked.

4. The control system of a washing machine according to any one of claims 1-3, wherein: the locking and unlocking device comprises a lock mechanism, a washing machine door frame and a washing machine outer barrel, wherein the washing machine inner barrel is positioned in the washing machine outer barrel, the washing machine door frame is matched with an opening of the washing machine outer barrel, and the washing machine inner barrel is locked in the washing machine door frame through the lock mechanism;

or, locking unlocking device includes lock mechanism, washing machine door frame, washing machine urceolus and washing machine shell, the washing machine inner tube is located in the washing machine urceolus, the washing machine urceolus is located in the washing machine shell, the washing machine door frame with the washing machine urceolus or with the opening cooperation of washing machine shell and through the lock mechanism will the washing machine inner tube is locked wherein.

5. A control method of a washing machine, comprising the steps of:

triggering the locking and unlocking switch so as to input a signal for locking the inner cylinder or a signal for unlocking the inner cylinder;

the control unit judges whether the inner drum of the washing machine stops rotating or whether the number of rotating turns of the inner drum of the washing machine in unit time is within a safe value according to one or more signals or/and values;

if the inner barrel of the washing machine stops rotating or the number of rotating turns of the inner barrel of the washing machine in unit time is within the safety number, the control unit starts a locking and unlocking power device, and the locking and unlocking power device acts on the locking and unlocking device to unlock or lock the inner barrel of the washing machine;

if the number of the rotating turns of the inner drum of the washing machine in unit time is judged to be larger than the safety number, the control unit cannot start the locking and unlocking power device to ensure safety.

6. The control method of a washing machine according to claim 5, wherein: the various signals or values include one or more of the following:

(2) signal whether the inner tub of the washing machine is rotated;

(3) signal whether the outer casing of the washing machine vibrates;

(5) signal whether the inner tub of the washing machine vibrates;

(6) noise signals generated by the washing machine;

(8) the inner drum door of the washing machine is opened or closed;

(9) opening or closing signal of the washing machine door frame.

7. The control method of a washing machine according to claims 2-6, characterized in that:

8. A control method of a washing machine, comprising the steps of: when the signal or the numerical value received by the control unit indicates that the inner cylinder is in a static state or a safe state and allows the inner cylinder to be unlocked or locked, the control unit unlocks or locks the door frame of the washing machine and the washing machine body based on the unlocking or locking signal request of the locking and unlocking switch, the inner cylinder can be moved out of the outer cylinder after unlocking, so that dirt on an interlayer between the inner wall of the outer cylinder and the outer wall of the inner cylinder of the washing machine is exposed and is convenient to clean, and the locking is realized by installing the cleaned inner cylinder or the replaced other inner cylinder back into the outer cylinder and.

9. A control method of a washing machine, comprising the steps of: triggering a washing machine door frame switch or a washing machine inner barrel door switch so as to input a washing machine door frame opening signal or a washing machine inner barrel door opening signal; the control unit receives a signal for opening a door frame of the washing machine or a signal for opening an inner drum door of the washing machine and then instructs a rotating motor of the inner drum of the washing machine to stop rotating or rotate at a reduced speed; after the rotating motor of the inner drum of the washing machine stops rotating or rotates at a reduced speed, the control unit opens a door frame of the washing machine or a door of the inner drum of the washing machine.

10. A locking and unlocking device is characterized in that: the locking mechanism comprises a movable locking piece (41), a locking tongue (43) and a locked part (47), wherein the locked part (47) is positioned at the other end of the locked transmission piece (44) and is of a convex structure or a concave structure; one end of the movable locking piece (41) is provided with one or more movable locking tongues (43), and when one or more locking tongues (43) are arranged at a position (45) with a smaller cross section area of the through hole, the locked part (47) cannot pass through a passing hole formed by one or more locking tongues (43) so as to be locked; when one or more locking tongues (43) are arranged at a position (46) where the cross-sectional area of the through hole is larger, the locked part (47) can be unlocked through a passing hole formed by one or more locking tongues (43); the movable locking piece (41) moves in the through hole to enable the bolt (43) to move back and forth between a position (45) with a smaller cross section of the through hole and a position (46) with a larger cross section of the through hole.

11. A method for dismounting and mounting an inner barrel of a washing machine comprises the following steps:

step 3, separating the inner cylinder from the outer cylinder;

and 5, closing the door frame of the washing machine.

12. A method for dismounting and mounting an inner barrel of a washing machine comprises the following steps:

step 2, separating the inner cylinder from the outer cylinder;

13. A method for dismounting and mounting an inner barrel of a washing machine comprises the following steps:

step 2, opening a door frame of the washing machine;

step 3, separating the inner cylinder from the outer cylinder;

and 5, closing the door frame of the washing machine.

14. A method for dismounting and mounting an inner barrel of a washing machine comprises the following steps: