CN105951359A - Spin drying control method and device of washing machine and washing machine - Google Patents
Spin drying control method and device of washing machine and washing machine Download PDFInfo
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- CN105951359A CN105951359A CN201610515301.7A CN201610515301A CN105951359A CN 105951359 A CN105951359 A CN 105951359A CN 201610515301 A CN201610515301 A CN 201610515301A CN 105951359 A CN105951359 A CN 105951359A
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- rotating speed
- washing machine
- vibration
- dehydration
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
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- D06F2204/065—
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- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a spin drying control method and device of a washing machine and the washing machine. The method comprises the following steps: when a spin drying procedure is executed, collecting the speed of a spin drying drum and the acceleration of the spin drying drum in the vibration direction in real time; calculating the vibration displacement of the spin drying drum in the vibration direction according to the speed and the acceleration; when the speed of the spin drying drum reaches the resonance point speed, judging whether the vibration displacement is greater than a preset displacement threshold corresponding to the resonance point speed; if so, controlling the washing machine to perform loose shaking work; otherwise, controlling to increase the speed of the spin drying drum to the stable-gear speed, and judging whether the vibration displacement is greater than the preset displacement threshold corresponding to the stable-gear speed; and if the vibration displacement is less than or equal to the preset displacement threshold corresponding to the stable-gear speed, controlling to continuously increase the speed of the spin drying drum to the next stable-gear speed. By adopting the method disclosed by the invention, high-speed vibration of the spin drying drum can be effectively reduced, and the spin drying time is shortened while the spin drying effect is improved.
Description
Technical field
The present invention relates to wash technical field of electric appliances, particularly to the dehydration controlling method of a kind of washing machine, a kind of washing machine
Dehydration control apparatus and a kind of washing machine.
Background technology
During barrel washing machine dehydration, when cylinder undergarment skewness, roller washing machine is caused to produce larger vibration, this
Serious vibration affects user's impression, and reduces the service life of roller washing machine.Roller washing machine motor has detection load not
The function of balance, when imbalance being detected, by adjusting rotating speed or can readjust load distribution, make roller washing machine
During dehydration, vibration reduces.
At present, the method for laundry drum machine testing dehydration and vibration has two kinds: 1, in dehydration low-speed stage (rotating speed≤150rpm),
The fluctuation of speed of detection stable state motor for washer or the torque ripple of detection stable state motor for washer.The method needs longer
The detection time (general >=40S), and vibration at high speed and transient oscillation cannot be detected in real time, thus cause roller washing machine
Dewatering time is long, and cannot adjust rotating speed during dehydration high speed and cause high speed dewatering vibration big；2, by using sensor assembly to examine
Survey dehydration and vibration, but sensor is relatively costly, and it is poor to install concordance.
Detection method based on above-mentioned dehydration and vibration, it is impossible to effectively reduce the vibration at high speed of dehydration barrel, thus when causing dehydration
Between longer, dehydrating effect is poor.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in above-mentioned technology.To this end, the one of the present invention
Purpose is to propose the dehydration controlling method of a kind of washing machine, it is possible to conveniently and exactly obtain dehydration barrel shaking when dehydration
Emotionally condition, the dehydration carried out accordingly controls effectively to reduce the vibration at high speed of dehydration barrel such that it is able to shorten dewatering time also
Dehydrating effect can be improved.
Second object of the present invention is to propose the dehydration control apparatus of a kind of washing machine.
Third object of the present invention is to propose a kind of washing machine.
For reaching above-mentioned purpose, first aspect present invention embodiment proposes the dehydration controlling method of a kind of washing machine, the method
Comprise the following steps: when described washing machine performs dehydration procedure, the rotating speed of the dehydration barrel of washing machine described in Real-time Collection and institute
State dehydration barrel acceleration on direction of vibration；According to dehydration barrel described in described rotating speed and described acceleration calculation in described vibration
Vibration displacement amount on direction；When the rotating speed of described dehydration barrel reaches resonance point rotating speed, it is judged that whether described vibration displacement amount
The preset displacement threshold value corresponding more than described resonance point rotating speed；If described vibration displacement amount is corresponding more than described resonance point rotating speed
Preset displacement threshold value, then control described washing machine and carry out shaking loose work；If described vibration displacement amount is less than or equal to described
The preset displacement threshold value that resonance point rotating speed is corresponding, then the rotating speed controlling described dehydration barrel improves to the operation of stable gear rotating speed, and
Judge whether described vibration displacement amount stablizes, more than described, the preset displacement threshold value that gear rotating speed is corresponding；If described vibration displacement
Amount stablizes, less than or equal to described, the preset displacement threshold value that gear rotating speed is corresponding, then the rotating speed controlling described dehydration barrel continues to improve
Run to next stable gear rotating speed.
The dehydration controlling method of washing machine according to embodiments of the present invention, by the rotating speed of the dehydration barrel of Real-time Collection washing machine and
Dehydration barrel acceleration on direction of vibration, and the vibration displacement on direction of vibration according to rotating speed and acceleration calculation dehydration barrel
Amount, then determines whether to control washing machine according to vibration displacement amount and carries out shaking loose work, and according to vibration position after shaking loose
Shifting amount progressively determines the running speed of dehydration barrel, thereby, it is possible to the convenient and acquisition dehydration barrel vibration when dehydration exactly
Situation, the dehydration carried out accordingly controls effectively to reduce the vibration at high speed of dehydration barrel such that it is able to shorten dewatering time energy
Enough improve dehydrating effect.
It addition, can also have following additional skill according to the dehydration controlling method of the washing machine of the above embodiment of the present invention proposition
Art feature:
Further, after the described washing machine of control carries out shaking loose work, if the rotating speed of described dehydration barrel reaches described again
During resonance point rotating speed, continue to judge the preset displacement threshold value that described vibration displacement amount is the most corresponding more than described resonance point rotating speed,
If the preset displacement threshold value that described vibration displacement amount is corresponding still greater than described resonance point rotating speed, washing machine described in secondary control the most again
Carry out shaking loose work, and count shaking loose number of times, until described in when shaking loose number of times more than preset times, wash described in control
Clothing machine terminates described dehydration procedure.
Further, when described dehydration barrel rotating speed improve to the most described stablize gear rotating speed time, if described vibration displacement amount is big
Stablize, in described, the preset displacement threshold value that gear rotating speed is corresponding, then control the stable gear rotating speed fortune that described dehydration barrel remains current
OK, and every Preset Time again judge whether described vibration displacement amount stablizes, more than described, the preset displacement that gear rotating speed is corresponding
Threshold value, if described vibration displacement amount stablizes the preset displacement threshold value that gear rotating speed is corresponding, then to judgement time still above described
Number adds up, until described judgement number of times more than preset judge number of times time, control the described dehydration barrel current stable shelves of maintenance
Position rotating speed runs extremely described dehydration procedure to be terminated.
According to one embodiment of present invention, described direction of vibration includes X, the Y in rectangular coordinate system in space and Z-direction.
According to one embodiment of present invention, described washing machine is roller washing machine.
For reaching above-mentioned purpose, second aspect present invention embodiment proposes the dehydration control apparatus of a kind of washing machine, this device
Including: acquisition module, described acquisition module is used for when described washing machine performs dehydration procedure, washing machine described in Real-time Collection
The rotating speed of dehydration barrel and described dehydration barrel acceleration on direction of vibration；Computing module, described computing module is used for basis
Dehydration barrel vibration displacement amount on described direction of vibration described in described rotating speed and described acceleration calculation；Judge module, described
Judge module is for when the rotating speed of described dehydration barrel reaches resonance point rotating speed, it is judged that whether described vibration displacement amount is more than described
The preset displacement threshold value that resonance point rotating speed is corresponding；Control module, described control module is for being more than institute in described vibration displacement amount
When stating preset displacement threshold value corresponding to resonance point rotating speed, control described washing machine and carry out shaking loose work, and at described vibration displacement
When measuring the preset displacement threshold value corresponding less than or equal to described resonance point rotating speed, the rotating speed controlling described dehydration barrel improves to stable
Gear rotating speed runs；Described judge module is additionally operable to, when the rotating speed of described dehydration barrel improves and runs to stable gear rotating speed, sentence
Whether disconnected described vibration displacement amount stablizes, more than described, the preset displacement threshold value that gear rotating speed is corresponding；Described control module is additionally operable to
Described vibration displacement amount less than or equal to described stablize preset displacement threshold value corresponding to gear rotating speed time, control described dehydration barrel
Rotating speed continue improve to next stable gear rotating speed run.
The dehydration control apparatus of washing machine according to embodiments of the present invention, by the rotating speed of the dehydration barrel of Real-time Collection washing machine and
Dehydration barrel acceleration on direction of vibration, and the vibration displacement on direction of vibration according to rotating speed and acceleration calculation dehydration barrel
Amount, then determines whether to control washing machine according to vibration displacement amount and carries out shaking loose work, and according to vibration position after shaking loose
Shifting amount progressively determines the running speed of dehydration barrel, thereby, it is possible to the convenient and acquisition dehydration barrel vibration when dehydration exactly
Situation, the dehydration carried out accordingly controls effectively to reduce the vibration at high speed of dehydration barrel such that it is able to shorten dewatering time energy
Enough improve dehydrating effect.
It addition, can also have following additional skill according to the dehydration control apparatus of the washing machine of the above embodiment of the present invention proposition
Art feature:
Further, after the described washing machine of control carries out shaking loose work, when the rotating speed of described dehydration barrel reaches described common again
Shake a some rotating speed time, described judge module continues to judge default the most corresponding more than described resonance point rotating speed of described vibration displacement amount
Displacement threshold value, described control module when the preset displacement threshold value that described vibration displacement amount is corresponding still greater than described resonance point rotating speed,
Washing machine described in secondary control carries out shaking loose work again, and counts shaking loose number of times, until described in shake loose number of times more than preset
During number of times, control described washing machine and terminate described dehydration procedure.
Further, when described dehydration barrel rotating speed improve to the most described stablize gear rotating speed time, described control module is shaken described
Dynamic displacement more than described stablize preset displacement threshold value corresponding to gear rotating speed time, control current the stablizing of maintenance of described dehydration barrel
Gear rotating speed runs, and described judge module every Preset Time again judge described vibration displacement amount whether more than described surely
Determining the preset displacement threshold value that gear rotating speed is corresponding, described control module stablizes gear in described vibration displacement amount still above described
During preset displacement threshold value corresponding to rotating speed, to judging that number of times adds up, during until described judgement number of times is more than preset times,
Controlling described dehydration barrel maintains current stable gear rotating speed operation to terminate to described dehydration procedure.
According to one embodiment of present invention, described direction of vibration includes X, the Y in rectangular coordinate system in space and Z-direction.
According to one embodiment of present invention, described washing machine is roller washing machine.
For reaching above-mentioned purpose, third aspect present invention embodiment proposes a kind of washing machine, and this washing machine includes the present invention the
The dehydration control apparatus of the washing machine that two aspect embodiments propose.
Washing machine according to embodiments of the present invention, it is possible to conveniently and exactly obtain the dehydration barrel Vibration Condition when dehydration,
The dehydration carried out accordingly controls effectively to reduce the vibration at high speed of dehydration barrel such that it is able to shortens dewatering time and can improve
Dehydrating effect.
Accompanying drawing explanation
Fig. 1 is the flow chart of the dehydration controlling method of the washing machine according to the embodiment of the present invention；
Fig. 2 is the speed curves figure of the dehydration barrel of the washing machine according to one embodiment of the invention；
Fig. 3 (a) is the flow chart of the dehydration controlling method of the washing machine in the ST1 stage according to one embodiment of the invention；
Fig. 3 (b) is the flow chart of the dehydration controlling method of the washing machine in the DT2 stage according to one embodiment of the invention；
Fig. 3 (c) is the flow chart of the dehydration controlling method of the washing machine in the DT3 stage according to one embodiment of the invention；
Fig. 3 (d) is the flow chart of the dehydration controlling method of the washing machine in the DT4 stage according to one embodiment of the invention；
Fig. 3 (e) is the flow chart of the dehydration controlling method of the washing machine in the DT5 stage according to one embodiment of the invention；
Fig. 4 is the oscillating curve figure under the big vibrational state according to one embodiment of the invention and small vibration state；
Fig. 5 is the block diagram of the dehydration control apparatus of the washing machine according to the embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
The dehydration controlling method of the washing machine of the embodiment of the present invention, device and washing machine are described below in conjunction with the accompanying drawings.
Fig. 1 is the flow chart of the dehydration controlling method of the washing machine according to the embodiment of the present invention.
As it is shown in figure 1, the dehydration controlling method of the washing machine of the embodiment of the present invention, comprise the following steps:
S1, when washing machine performs dehydration procedure, the rotating speed of the dehydration barrel of Real-time Collection washing machine and dehydration barrel are at direction of vibration
On acceleration.
S2, the vibration displacement amount on direction of vibration according to rotating speed and acceleration calculation dehydration barrel.
When washing machine performs dehydration procedure, if washing machine is in unbalanced state, then the dehydration barrel of washing machine can be shaken
Dynamic.
The vibration of the dehydration barrel of washing machine can be equivalent to the simple harmonic motion of single-degree-of-freedom, and its expression formula is: x (t)=Acos (ω t+ Φ),
Wherein, amplitude A can represent vibration displacement amount, reflects vibration strong or weak；Angular frequency is the constant that system itself determines, with just
Beginning condition is unrelated, the speed of reaction vibration；Cycle T=2 π/ω, for completing once the full vibration time used, reflection vibration speed；
Frequency V=ω/2 π, the full vibration number completed in the unit interval, reflection vibration speed；Phase place (ω t+ Φ) determines any time thing
The vibrational state of body.
Dehydration barrel acceleration a=d when occurring to vibrate2x/dt2=-A ω2Cos (ω t+ Φ)=A ω2Cos (ω t+ Φ ± π), can vibrate position
Shifting amount A=a/ [ω2cos(ωt+Φ±π)].Visible, according to rotating speed and the dehydration barrel accelerated energy on direction of vibration of dehydration barrel
Enough calculate dehydration barrel vibration displacement amount on direction of vibration.
In one embodiment of the invention, direction of vibration can include X, the Y in rectangular coordinate system in space and Z-direction.Also
That is, three acceleration can be detected, and three acceleration are the most vertical, it is possible to obtain dehydration barrel in above three direction
Vibration displacement amount such that it is able to reflect the Vibration Condition of dehydration barrel the most all sidedly.
S3, when the rotating speed of dehydration barrel reaches resonance point rotating speed, it is judged that vibration displacement amount is the most corresponding more than resonance point rotating speed
Preset displacement threshold value.
The washing machine of the embodiment of the present invention can be roller washing machine.As in figure 2 it is shown, this washing machine performs dehydration procedure starting
After, the rotating speed of its dehydration barrel can improve constantly, and when the rotating speed of dehydration barrel reaches resonance point rotating speed, enters the ST1 shown in Fig. 2
Stage.
S4, if the preset displacement threshold value that vibration displacement amount is corresponding more than resonance point rotating speed, then controls washing machine and carries out shaking loose work
Make.
In the ST1 stage, if the preset displacement threshold value that vibration displacement amount is corresponding more than resonance point rotating speed, then can determine that washing machine
Vibration relatively big, i.e. washing machine current state is big vibrational state, and the rotating speed that then can control dehydration barrel reduces, to tremble
Day labor is made.
S5, if the preset displacement threshold value that vibration displacement amount is corresponding less than or equal to resonance point rotating speed, then controls turning of dehydration barrel
Speed improves to the operation of stable gear rotating speed, and judges that whether vibration displacement amount is more than stablizing the preset displacement threshold that gear rotating speed is corresponding
Value.
In the ST1 stage, if the preset displacement threshold value that vibration displacement amount is corresponding less than or equal to resonance point rotating speed, then can determine that
The vibration of washing machine is less, i.e. washing machine current state is small vibration state, and the rotating speed that then can control dehydration barrel improves, directly
To bringing up to the first stabilized (steady-state) speed, enter the DT2 stage shown in Fig. 2.
It should be noted that after control washing machine carries out shaking loose work, if the rotating speed of dehydration barrel again reaches resonance point and turns
During speed, continue to judge the preset displacement threshold value that vibration displacement amount is the most corresponding more than resonance point rotating speed, if vibration displacement amount is still
The preset displacement threshold value corresponding more than resonance point rotating speed, the most again controls washing machine and carries out shaking loose work, and enter shaking loose number of times
Row counting, during until shaking loose number of times more than preset times, controlling washing machine and terminating dehydration procedure.Specifically, such as Fig. 3 (a)
Shown in, after shaking loose, still calculate above-mentioned X, Y and vibration displacement amount AST1 of Z-direction in real time, and judge shaking of each direction
Whether dynamic displacement AST1 is more than preset displacement threshold value A ST1_limit of its correspondence, if AST1 is more than AST1_limit,
Then will shake loose frequency n and add 1, it is judged that whether n will be more than preset times n_max, and if n is more than n_max, then terminate to be dehydrated journey
Sequence；If AST1 is less than or equal to AST1_limit, then continues to improve the rotating speed of dehydration barrel, enter the DT2 shown in Fig. 2
In the stage, dehydration barrel is run with the first stabilized (steady-state) speed.
In the DT2 stage, it is judged that the preset displacement threshold value that vibration displacement amount is the most corresponding more than the first stabilized (steady-state) speed.
S6, if vibration displacement amount is less than or equal to stablizing the preset displacement threshold value that gear rotating speed is corresponding, then controls dehydration barrel
Rotating speed continues to improve to the operation of next stable gear rotating speed.
When the rotating speed of dehydration barrel improves to stable gear rotating speed, if vibration displacement amount is more than stablizing corresponding pre-of gear rotating speed
If displacement threshold value, then control dehydration barrel and maintain current stable gear rotating speed to run, and again judge vibration every Preset Time
Whether displacement is more than stablizing the preset displacement threshold value that gear rotating speed is corresponding, if vibration displacement amount turns still above stable gear
The preset displacement threshold value that speed is corresponding, then to judging that number of times adds up, until judge number of times more than default judge number of times time, control
Dehydration barrel processed maintains current stable gear rotating speed operation to terminate to dehydration procedure.
Specifically, as shown in Fig. 2 and Fig. 3 (b), in the DT2 stage, calculate the vibration displacement of X, Y and Z-direction in real time
Amount ADT2, and judge whether vibration displacement amount ADT2 in the first each direction calculated is more than the preset displacement threshold of its correspondence
Value ADT2_limit, if ADT2 is more than ADT2_limit, then can determine that the vibration of washing machine is relatively big, i.e. washing machine is current
State is big vibrational state, then can control dehydration barrel and maintain the first current stabilized (steady-state) speed to run.Then every Preset Time
T calculates vibration displacement amount ADT2 of X, Y and Z-direction again ', and judge vibration displacement amount ADT2 in each direction '
Whether it is more than preset displacement threshold value A DT2_limit of its correspondence, if ADT2 ' is more than ADT2_limit, then secondary to judging
Number ns2 adds up.When ns2 less than or equal to preset judge frequency n s2_max time, can continue to return above-mentioned maintenance ought
The first front stabilized (steady-state) speed runs, calculates ADT2 ' every preset time T and judge that whether ADT2 ' is more than ADT2_limit
Process, until ADT2 ' less than or equal to ADT2_limit, then can determine that the vibration of washing machine is less, i.e. washing machine is worked as
Front state is small vibration state, then can continue to improve the rotating speed of dehydration barrel, enter the DT3 stage shown in Fig. 2, dehydration barrel
Run with the second stabilized (steady-state) speed.Wherein, the second stabilized (steady-state) speed is more than the first stabilized (steady-state) speed.When ns2 judges number of times more than presetting
During ns2_max, directly control dehydration barrel and maintain the first current stabilized (steady-state) speed operation to terminate to dehydration procedure.
Fig. 3 (c) is the flow chart of the dehydration controlling method in DT3 stage.Similarly, dehydration controlling method may also include with
Three stabilized (steady-state) speeds run the DT4 stage, with the 4th stabilized (steady-state) speed run the DT5 stage and with the 5th stabilized (steady-state) speed run
The DT6 stage.Wherein, the 3rd stabilized (steady-state) speed is more than the second stabilized (steady-state) speed, and the 4th stabilized (steady-state) speed is more than the 3rd stabilized (steady-state) speed, the
Five stabilized (steady-state) speeds are more than the 4th stabilized (steady-state) speed.Wherein, Fig. 3 (d) and Fig. 3 (e) is respectively DT4 stage and DT5 stage
The flow chart of dehydration controlling method.In DT3 stage, DT4 stage and DT5 stage, concrete control process can be joined
Control process according to the above-mentioned DT2 stage.The highest turn that the 5th stabilized (steady-state) speed is set dehydrating vessel in washing machine of DT6 stage
Speed, when reaching DT6 stage, the rotating speed of dehydration barrel is the fastest, and dehydrating effect is best.
Fig. 4 is the oscillating curve figure under the big vibrational state according to one embodiment of the invention and small vibration state, such as Fig. 4 institute
Showing, no matter washing machine is in big vibrational state is in small vibration state, when the rotating speed of dehydration barrel reaches resonance point rotating speed,
Its vibration displacement amount is significantly greater, and when the rotating speed of dehydration barrel reaches stable gear rotating speed, its vibration displacement amount is less and tends to
Steadily.
The dehydration controlling method of washing machine according to embodiments of the present invention, by the rotating speed of the dehydration barrel of Real-time Collection washing machine and
Dehydration barrel acceleration on direction of vibration, and the vibration displacement on direction of vibration according to rotating speed and acceleration calculation dehydration barrel
Amount, then determines whether to control washing machine according to vibration displacement amount and carries out shaking loose work, and according to vibration position after shaking loose
Shifting amount progressively determines the running speed of dehydration barrel, thereby, it is possible to the convenient and acquisition dehydration barrel vibration when dehydration exactly
Situation, the dehydration carried out accordingly controls effectively to reduce the vibration at high speed of dehydration barrel such that it is able to shorten dewatering time energy
Enough improve dehydrating effect.
For realizing the dehydration controlling method of the washing machine of above-described embodiment, the present invention also proposes the dehydration of a kind of washing machine and controls dress
Put.
As it is shown in figure 5, the dehydration control apparatus of the washing machine of the embodiment of the present invention, including: acquisition module 10, computing module
20, judge module 30 and control module 40.
Wherein, acquisition module 10 for when washing machine performs dehydration procedure, the rotating speed of the dehydration barrel of Real-time Collection washing machine and
Dehydration barrel acceleration on direction of vibration；Computing module 20 for according to rotating speed and acceleration calculation dehydration barrel at direction of vibration
On vibration displacement amount；Judge module 30 is for when the rotating speed of dehydration barrel reaches resonance point rotating speed, it is judged that vibration displacement amount is
The no preset displacement threshold value corresponding more than resonance point rotating speed；Control module 40 is for being more than resonance point rotating speed pair in vibration displacement amount
During the preset displacement threshold value answered, control washing machine and carry out shaking loose work, and in vibration displacement amount less than or equal to resonance point rotating speed
During corresponding preset displacement threshold value, control the rotating speed of dehydration barrel and improve to stable gear rotating speed and run；Judge module 30 is additionally operable to
When the rotating speed of dehydration barrel improves and runs to stable gear rotating speed, it is judged that vibration displacement amount is the most corresponding more than stablizing gear rotating speed
Preset displacement threshold value；Control module 40 is additionally operable in vibration displacement amount less than or equal to stablizing the default position that gear rotating speed is corresponding
When moving threshold value, the rotating speed controlling dehydration barrel continues to improve to the operation of next stable gear rotating speed.
When washing machine performs dehydration procedure, if washing machine is in unbalanced state, then the dehydration barrel of washing machine can be shaken
Dynamic.
The vibration of the dehydration barrel of washing machine can be equivalent to the simple harmonic motion of single-degree-of-freedom, and its expression formula is: x (t)=Acos (ω t+ Φ),
Wherein, amplitude A can represent vibration displacement amount, reflects vibration strong or weak；Angular frequency is the constant that system itself determines, with just
Beginning condition is unrelated, the speed of reaction vibration；Cycle T=2 π/ω, for completing once the full vibration time used, reflection vibration speed；
Frequency V=ω/2 π, the full vibration number completed in the unit interval, reflection vibration speed；Phase place (ω t+ Φ) determines any time thing
The vibrational state of body.
Dehydration barrel acceleration a=d when occurring to vibrate2x/dt2=-A ω2Cos (ω t+ Φ)=A ω2Cos (ω t+ Φ ± π), can vibrate position
Shifting amount A=a/ [ω2cos(ωt+Φ±π)].Visible, according to rotating speed and the dehydration barrel accelerated energy on direction of vibration of dehydration barrel
Enough calculate dehydration barrel vibration displacement amount on direction of vibration.
In one embodiment of the invention, direction of vibration can include X, the Y in rectangular coordinate system in space and Z-direction.Also
That is, acquisition module 10 can detect three acceleration, and three acceleration are the most vertical, it is possible to obtains dehydration barrel upper
State the vibration displacement amount in three directions such that it is able to reflect the Vibration Condition of dehydration barrel the most all sidedly.
The washing machine of the embodiment of the present invention can be roller washing machine.As in figure 2 it is shown, this washing machine performs dehydration procedure starting
After, the rotating speed of its dehydration barrel can improve constantly, and when the rotating speed of dehydration barrel reaches resonance point rotating speed, enters the ST1 shown in Fig. 2
Stage.
In the ST1 stage, if the preset displacement threshold value that vibration displacement amount is corresponding more than resonance point rotating speed, then can determine that washing machine
Vibration relatively big, i.e. washing machine current state is big vibrational state, and the rotating speed that then can control dehydration barrel reduces, to tremble
Day labor is made.
In the ST1 stage, if the preset displacement threshold value that vibration displacement amount is corresponding less than or equal to resonance point rotating speed, then can determine that
The vibration of washing machine is less, i.e. washing machine current state is small vibration state, and the rotating speed that then can control dehydration barrel improves, directly
To bringing up to the first stabilized (steady-state) speed, enter the DT2 stage shown in Fig. 2.
It should be noted that after control washing machine carries out shaking loose work, if the rotating speed of dehydration barrel again reaches resonance point and turns
During speed, it is judged that module 30 can continue to judge the preset displacement threshold value that vibration displacement amount is the most corresponding more than resonance point rotating speed, if
The preset displacement threshold value that vibration displacement amount is corresponding still greater than resonance point rotating speed, then control module 40 again controls washing machine and trembles
Day labor is made, and counts shaking loose number of times, during until shaking loose number of times more than preset times, controlling washing machine and terminating to be dehydrated journey
Sequence.
In the DT2 stage, it is judged that module 30 judges the preset displacement threshold that vibration displacement amount is the most corresponding more than the first stabilized (steady-state) speed
Value.
When the rotating speed of dehydration barrel improves to stable gear rotating speed, if vibration displacement amount is more than stablizing corresponding pre-of gear rotating speed
If displacement threshold value, then control module 40 controls dehydration barrel and maintains current stable gear rotating speed to run, it is judged that module 30 every
Preset Time again judges whether vibration displacement amount is more than and stablizes the preset displacement threshold value that gear rotating speed is corresponding, and control module 40 exists
During the vibration displacement amount preset displacement threshold value corresponding still above stable gear rotating speed, to judging that number of times adds up, until sentencing
Disconnected number of times more than preset judge number of times time, control dehydration barrel and maintain current stable gear rotating speed operation to terminate to dehydration procedure.
The dehydration control apparatus of washing machine according to embodiments of the present invention, by the rotating speed of the dehydration barrel of Real-time Collection washing machine and
Dehydration barrel acceleration on direction of vibration, and the vibration displacement on direction of vibration according to rotating speed and acceleration calculation dehydration barrel
Amount, then determines whether to control washing machine according to vibration displacement amount and carries out shaking loose work, and according to vibration position after shaking loose
Shifting amount progressively determines the running speed of dehydration barrel, thereby, it is possible to the convenient and acquisition dehydration barrel vibration when dehydration exactly
Situation, the dehydration carried out accordingly controls effectively to reduce the vibration at high speed of dehydration barrel such that it is able to shorten dewatering time energy
Enough improve dehydrating effect.
Corresponding above-described embodiment, the present invention also proposes a kind of washing machine.
The washing machine of the embodiment of the present invention, including the dehydration control apparatus of the washing machine that the above embodiment of the present invention proposes, its tool
The embodiment of body can refer to above-described embodiment, for avoiding redundancy, does not repeats them here.
Washing machine according to embodiments of the present invention, it is possible to conveniently and exactly obtain the dehydration barrel Vibration Condition when dehydration,
The dehydration carried out accordingly controls effectively to reduce the vibration at high speed of dehydration barrel such that it is able to shortens dewatering time and can improve
Dehydrating effect.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward ",
Orientation or the position relationship of the instruction such as " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on shown in the drawings
Orientation or position relationship, be for only for ease of describe the present invention and simplify describe rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or
The implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or hidden
One or more this feature are included containing ground.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", the art such as " fixing "
Language should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part or the interaction relationship of two elements.For the ordinary skill in the art, can be according to tool
Body situation understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be
First and second features directly contact, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below "
Can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second
Feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by art personnel
And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (11)
1. the dehydration controlling method of a washing machine, it is characterised in that comprise the following steps:
When described washing machine performs dehydration procedure, rotating speed and the described dehydration barrel of the dehydration barrel of washing machine described in Real-time Collection exist
Acceleration on direction of vibration；
According to dehydration barrel vibration displacement amount on described direction of vibration described in described rotating speed and described acceleration calculation；
When the rotating speed of described dehydration barrel reaches resonance point rotating speed, it is judged that whether described vibration displacement amount turns more than described resonance point
The preset displacement threshold value that speed is corresponding；
If the preset displacement threshold value that described vibration displacement amount is corresponding more than described resonance point rotating speed, then control described washing machine and enter
Row shakes loose work；
If the preset displacement threshold value that described vibration displacement amount is corresponding less than or equal to described resonance point rotating speed, then control described de-
The rotating speed of bucket improves to the operation of stable gear rotating speed, and judges whether described vibration displacement amount stablizes gear rotating speed more than described
Corresponding preset displacement threshold value；
If described vibration displacement amount stablizes, less than or equal to described, the preset displacement threshold value that gear rotating speed is corresponding, then control described
The rotating speed of dehydration barrel continues to improve to the operation of next stable gear rotating speed.
The dehydration controlling method of washing machine the most according to claim 1, it is characterised in that enter controlling described washing machine
After row shakes loose work, if the rotating speed of described dehydration barrel reaches described resonance point rotating speed again, continue to judge described vibration position
The preset displacement threshold value that shifting amount is the most corresponding more than described resonance point rotating speed, if described vibration displacement amount is still greater than described resonance
The preset displacement threshold value that some rotating speed is corresponding, washing machine described in secondary control carries out shaking loose work the most again, and counts shaking loose number of times
Number, until described in shake loose number of times more than preset times time, control described washing machine and terminate described dehydration procedure.
The dehydration controlling method of washing machine the most according to claim 1, it is characterised in that when the rotating speed of described dehydration barrel
Improve to the most described stablize gear rotating speed time, if described vibration displacement amount is more than described stablizes the preset displacement that gear rotating speed is corresponding
Threshold value, then control described dehydration barrel and maintain current stable gear rotating speed to run, and shakes described in again judging every Preset Time
Whether dynamic displacement stablizes, more than described, the preset displacement threshold value that gear rotating speed is corresponding, if described vibration displacement amount still above
Described stablize the preset displacement threshold value that gear rotating speed is corresponding, then to judging that number of times adds up, until described judgement number of times is more than
Preset when judging number of times, control described dehydration barrel and maintain current stable gear rotating speed to run extremely described dehydration procedure to terminate.
The dehydration controlling method of washing machine the most according to claim 1, it is characterised in that described direction of vibration includes sky
Between X, Y in rectangular coordinate system and Z-direction.
5. according to the dehydration controlling method of the washing machine according to any one of claim 1-4, it is characterised in that described laundry
Machine is roller washing machine.
6. the dehydration control apparatus of a washing machine, it is characterised in that including:
Acquisition module, described acquisition module is used for when described washing machine performs dehydration procedure, washing machine described in Real-time Collection
The rotating speed of dehydration barrel and described dehydration barrel acceleration on direction of vibration；
Computing module, described computing module is used for according to dehydration barrel described in described rotating speed and described acceleration calculation in described vibration
Vibration displacement amount on direction；
Judge module, described judge module is for when the rotating speed of described dehydration barrel reaches resonance point rotating speed, it is judged that described vibration
The preset displacement threshold value that displacement is the most corresponding more than described resonance point rotating speed；
Control module, described control module is for the preset displacement corresponding more than described resonance point rotating speed in described vibration displacement amount
During threshold value, control described washing machine and carry out shaking loose work, and in described vibration displacement amount less than or equal to described resonance point rotating speed
During corresponding preset displacement threshold value, control the rotating speed of described dehydration barrel and improve to stable gear rotating speed and run；
Described judge module is additionally operable to when the rotating speed of described dehydration barrel improves and runs to stable gear rotating speed, it is judged that described vibration
Whether displacement stablizes, more than described, the preset displacement threshold value that gear rotating speed is corresponding；
Described control module is additionally operable to stablize, less than or equal to described, the preset displacement that gear rotating speed is corresponding in described vibration displacement amount
During threshold value, the rotating speed controlling described dehydration barrel continues to improve to the operation of next stable gear rotating speed.
The dehydration control apparatus of washing machine the most according to claim 6, it is characterised in that enter controlling described washing machine
After row shakes loose work, when the rotating speed of described dehydration barrel reaches described resonance point rotating speed again, described judge module continues to judge
The preset displacement threshold value that described vibration displacement amount is the most corresponding more than described resonance point rotating speed, described control module is in described vibration
During the displacement preset displacement threshold value corresponding still greater than described resonance point rotating speed, then washing machine described in secondary control carries out shaking loose work,
And count shaking loose number of times, until described in when shaking loose number of times more than preset times, control described washing machine and terminate described de-
Water program.
The dehydration control apparatus of washing machine the most according to claim 6, it is characterised in that when the rotating speed of described dehydration barrel
Improve to the most described stablize gear rotating speed time, described control module described vibration displacement amount more than described stablize gear rotating speed correspondence
Preset displacement threshold value time, control described dehydration barrel and maintain current stable gear rotating speed to run, and described judge module is every
Again judge whether described vibration displacement amount stablizes the preset displacement threshold value that gear rotating speed is corresponding, institute more than described every Preset Time
State control module described vibration displacement amount still above described stablize preset displacement threshold value corresponding to gear rotating speed time, to judgement
Number of times adds up, and during until described judgement number of times is more than preset times, controls the stable gear that described dehydration barrel remains current
Rotating speed runs extremely described dehydration procedure to be terminated.
The dehydration control apparatus of washing machine the most according to claim 6, it is characterised in that described direction of vibration includes sky
Between X, Y in rectangular coordinate system and Z-direction.
10. according to the dehydration control apparatus of the washing machine according to any one of claim 6-9, it is characterised in that described in wash
Clothing machine is roller washing machine.
11. 1 kinds of washing machinees, it is characterised in that include the dehydration according to the washing machine according to any one of claim 6-10
Control device.
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| CN201610515301.7A CN105951359B (en) | 2016-06-30 | 2016-06-30 | Dehydration controlling method, device and the washing machine of washing machine |
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| CN201610515301.7A CN105951359B (en) | 2016-06-30 | 2016-06-30 | Dehydration controlling method, device and the washing machine of washing machine |
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| CN107904857A (en) * | 2017-11-03 | 2018-04-13 | 青岛海尔洗衣机有限公司 | Device for clothing processing dehydration controlling method and device for clothing processing |
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Effective date of registration: 20190808 Address after: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Patentee after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 Wuxi Changjiang Road, Wuxi New District, Jiangsu, No. 18 Patentee before: Wuxi Xiaotianer Co., Ltd. |