CN112127121A - Washing machine and water inlet control method thereof - Google Patents
Washing machine and water inlet control method thereof Download PDFInfo
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- CN112127121A CN112127121A CN201910489834.6A CN201910489834A CN112127121A CN 112127121 A CN112127121 A CN 112127121A CN 201910489834 A CN201910489834 A CN 201910489834A CN 112127121 A CN112127121 A CN 112127121A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 400
- 238000005406 washing Methods 0.000 title claims abstract description 272
- 238000000034 method Methods 0.000 title claims abstract description 107
- 239000013589 supplement Substances 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 238000005303 weighing Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000008237 rinsing water Substances 0.000 description 2
- 101150114468 TUB1 gene Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/088—Liquid supply arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Control Of Washing Machine And Dryer (AREA)
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Abstract
The invention provides a washing machine and a water inlet control method thereof, wherein the washing machine comprises a washing barrel which can be rotatably arranged, the washing barrel holds washing water in the washing process, and the water inlet control method comprises the following steps: the washing machine executes a pre-water inlet process, detects the actual water inflow of the washing barrel after the pre-water inlet process is finished, determines a water inflow deviation parameter according to the actual water inflow and the theoretical water inflow corresponding to the pre-water inlet process, and adjusts the subsequent water inflow according to the water inflow deviation parameter. The invention provides a water inlet control method for correcting water inlet deviation by adopting motor weighing and water inlet in different times, aiming at the problem that the traditional pressure type water level sensor is difficult to detect and control the water inlet of the existing imperforate inner barrel washing machine, and accurately controlling the water inlet of the washing machine.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a washing machine and a water inlet control method thereof.
Background
The existing common washing machine has basically the same structure, and generally comprises an outer tub for holding water and an inner tub rotatably disposed inside the outer tub, wherein a large number of water through holes or dewatering holes are disposed on the inner tub, laundry is put into the inner tub, and the outer tub is used for holding water. The water level detection or water inflow control of these ordinary washing machines generally adopts a water level sensor for detection control, or adopts a flow meter for detection control, for example, a pressure water level sensor is arranged in the outer barrel, the pressure water level sensor senses water pressure to judge the water level height in the inner barrel, and the flow meter determines the water inflow of the washing machine by detecting the water flow flowing through.
However, in the case of a washing machine having another structure including a rotatably installed washing tub for containing washing water during washing, the washing machine having the structure is generally called a holeless inner tub washing machine, which is difficult to detect a water level using the principle of a pressure water level sensor, and when a water inflow amount is controlled using a flow meter, the washing machine cannot accurately know the water amount in the washing tub in advance or in case that a user manually adds water halfway.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In order to solve the above problems, a first object of the present invention is to provide a water inlet control method for a washing machine, which provides a water inlet control method for correcting the water inlet deviation by weighing a motor and feeding water in multiple times for a washing machine with a non-porous inner tub, and accurately controls the water inlet amount of the washing machine, and specifically, the following technical scheme is adopted:
a water inlet control method for a washing machine, the washing machine comprises a washing barrel which can be rotatably arranged, and the washing barrel holds washing water in a washing process, the control method comprises the following steps: the washing machine executes a pre-water inlet process, detects the actual water inflow of the washing barrel after the pre-water inlet process is finished, determines a water inflow deviation parameter according to the actual water inflow and the theoretical water inflow corresponding to the pre-water inlet process, and adjusts the subsequent water inflow according to the water inflow deviation parameter.
In the scheme, the water inlet control method for correcting the water inlet by adopting the motor weighing and the water inlet in times is provided for solving the problem that the traditional pressure type water level sensor is difficult to detect and control the water inlet of the conventional imperforate inner barrel washing machine, so that the water inlet of the washing machine is accurately controlled.
Preferably, the washing machine sets a total water inflow and a pre-inflow, the washing machine performs a pre-inflow process of feeding the pre-inflow water into the washing tub, detects an actual water inflow of the washing tub after the pre-inflow process is finished, determines a water inflow deviation parameter according to the actual water inflow and the pre-inflow, and adjusts a subsequent water inflow according to the water inflow deviation parameter.
In the scheme, the washing machine divides the total water inflow into two times of water inflow, determines the deviation of the actual water inflow and the theoretical water inflow according to the pre-inflow, calculates to obtain a deviation parameter, and adjusts the subsequent water inflow according to the deviation parameter, so that the actual water inflow is closer to the total water inflow after the washing machine enters water according to the two times of water inflow.
Preferably, the water inflow deviation parameter is obtained by the following formula:
μ＝1-MS/ML(ii) a Wherein mu is the water inflow deviation parameter, MSThe actual water inflow of the washing tub, M, detected by the washing machine after the pre-water-inflow process is finishedLThe pre-feeding water quantity is obtained.
In the scheme, the subsequent water inflow is adjusted according to the water inflow deviation parameter to ensure that the final actual water inflow is closer to the total water inflow.
Preferably, the washing machine comprises a flow meter, and the washing machine controls the inflow of the pre-inflow water into the washing tub through the flow meter in the pre-inflow process.
The washing machine detects the weight of the clothes to be washed and the load of the washing barrel after the pre-water inlet process is finished, and determines the actual water inflow of the washing barrel according to the difference between the load of the washing barrel and the weight of the clothes to be washed;
preferably, the washing machine control motor detects a load of the washing tub: when the washing machine controls the inner barrel to rotate to a set rotating speed, the motor is controlled to be powered off, the output signal of the motor is detected, and the load of the washing barrel is determined according to the output signal.
Preferably, the washing machine determines the total water inflow according to the weight of the clothes to be processed, and the washing machine calculates the adjusted subsequent water inflow through the following formula;
ME＝(MZ-MY) 1+ μ; wherein M isEFor adjusted subsequent water inflow, MZTotal water inflow, MYThe water inlet amount is pre-determined.
In the scheme, the theoretical value of the subsequent water inflow is obtained by subtracting the pre-inflow from the total water inflow, then the value is corrected to obtain the adjusted subsequent water inflow, and the washing machine carries out secondary water inflow according to the subsequent water inflow so as to ensure that the total actual water inflow does not deviate from the total water inflow too much.
Preferably, the washing machine performs a secondary water supply process of supplying the adjusted water of the subsequent water supply amount into the washing tub, detects an actual total water supply amount of the washing tub after the secondary water supply process is finished, determines a water supply amount according to a difference between the actual total water supply amount and a total water supply amount set by the washing machine, and performs a water supply process of supplying the water of the water supply amount into the washing tub.
In the scheme, after the washing machine controls and executes the secondary water inflow, the difference value between the actual water inflow and the theoretical water inflow is continuously detected, the water supplementing process is determined and executed according to the difference value, the water supplementing amount corresponding to the water supplementing process is determined, and the deviation between the actual water inflow and the theoretical water inflow is further reduced.
Preferably, the washing machine is according to formula Mb＝(MZ–Mf) (1+ mu) correcting the water supplement amount, and supplementing water according to the corrected water supplement amount, wherein M isbFor the corrected amount of make-up water, MfFor forming a knot in the secondary water inlet processActual total water inflow of the washing tub detected after the beam.
In the scheme, deviation correction calculation is also carried out on the water supplement amount to reduce the deviation between the actual water inflow and the total water inflow.
Preferably, the washing machine determines the total water inflow and the pre-water inflow according to the weight of the laundry; wherein the pre-inflow amount is 20% -70% of the total inflow amount, or the pre-inflow amount is a fixed value.
In another embodiment, the total water inflow is determined by integrating the material of the clothes, and the total water inflow is determined together according to the material, weight and style of the clothes.
Preferably, the process of the washing machine detecting the actual load of the washing tub includes: when the washing machine controls the inner barrel to rotate to a set rotating speed, the motor is controlled to be powered off, the output signal of the motor is detected, and the load of the washing barrel is determined according to the output signal. Specifically, the method comprises the following steps: the motor can drive the inner drum to reach a set rotating speed, then the motor is controlled to be powered off, the pulse frequency of a pulse signal output by the motor during the period from the set rotation to the complete stop of the inner drum after the motor is powered off is recorded, and the weight of the load in the washing drum is determined through the pulse frequency by utilizing the corresponding relation between the pulse frequency and the weight of clothes.
Preferably, the washing machine comprises a flow meter, and the washing machine controls the water inflow through the flow meter.
Or the washing machine controls the water inflow according to the detected motor data.
Another object of the present invention is to provide a washing machine using the above-mentioned control method of the washing machine, which comprises a cabinet and a washing tub rotatably disposed in the cabinet, wherein the washing tub is used for containing washing water during a washing process.
By adopting the technical scheme, the invention has the following beneficial effects:
the washing machine of the invention is a nonporous inner barrel washing machine, namely: the washing machine comprises a washing barrel which is rotatably arranged, wherein the washing barrel holds washing water in the washing process, and the water inlet control method of the washing machine comprises the following steps: the washing machine executes a pre-water inlet process, detects the actual water inflow of the washing barrel after the pre-water inlet process is finished, determines a water inflow deviation parameter according to the actual water inflow and the theoretical water inflow corresponding to the pre-water inlet process, and adjusts the subsequent water inflow according to the water inflow deviation parameter. The invention provides a water inlet control method for correcting water inlet deviation by adopting motor weighing and water inlet in different times, aiming at the problem that the traditional pressure type water level sensor is difficult to detect and control the water inlet of the existing imperforate inner barrel washing machine, and accurately controlling the water inlet of the washing machine.
Drawings
FIG. 1 is a schematic view of the water inlet control step of the washing machine according to the present invention;
fig. 2 is a schematic structural view of the washing machine of the present invention.
Wherein, 1, an outer barrel; 2. a washing tub; 3. an overflow aperture; 4. clothing; 5. an electric motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a water inlet control method of a washing machine, which is a hole-free inner barrel washing machine, namely the washing machine comprises a washing barrel which can be rotatably arranged, the washing barrel holds washing water in the washing process, the barrel wall of the washing barrel is not provided with a large number of dewatering holes, the washing water and rinsing water are both concentrated in the washing barrel, and the washing barrel is a water containing barrel and a centrifugal dewatering barrel. During centrifugal dehydration, the washing barrel rotates at a high speed, and residual water in clothes is thrown out upwards along the inner wall of the washing barrel under the action of centrifugal force through a circle of overflow holes distributed below the opening of the washing barrel and the balance ring. As the water in the interlayer of the inner and outer barrels of the traditional washing machine is saved, the water-saving effect of the washing machine can reach more than 50 percent on average.
The water inlet control method of the washing machine of the invention comprises the following steps: the washing machine executes a pre-water inlet process, detects the actual water inflow of the washing barrel after the pre-water inlet process is finished, determines a water inflow deviation parameter according to the actual water inflow and the theoretical water inflow corresponding to the pre-water inlet process, and adjusts the subsequent water inflow according to the water inflow deviation parameter. The invention provides a water inlet control method for correcting water inlet deviation by adopting motor weighing and water inlet in different times, aiming at the problem that the traditional pressure type water level sensor is difficult to detect and control the water inlet of the existing imperforate inner barrel washing machine, and accurately controlling the water inlet of the washing machine.
Example one
In this embodiment, the washing machine sets a total water inflow and a pre-inflow, the washing machine performs a pre-inflow process of feeding the pre-inflow into the washing tub, and after the pre-inflow process is finished, detects an actual water inflow of the washing tub, determines a water inflow deviation parameter according to the actual water inflow and the pre-inflow, and adjusts a subsequent water inflow according to the water inflow deviation parameter.
In this embodiment, the washing machine divides the total water inflow into two times of water inflow, determines the deviation between the actual water inflow and the theoretical water inflow according to the pre-inflow, calculates a deviation parameter, and adjusts the subsequent water inflow according to the deviation parameter, so that the actual water inflow is closer to the total water inflow after the washing machine enters water according to the two times of water inflow. The total water inflow can be the water inflow selected by the user or the water inflow automatically set by the washing machine according to the clothes.
The washing machine can detect the weight of the clothes to be washed, determine the total water inflow according to the weight of the clothes to be washed, and directly obtain the required total water inflow (hereinafter referred to as the total water inflow) according to the weight of the clothes if the weight of the clothes has a multiplying power relation with the total water inflow.
If so, the washing machine determines the total water inflow and the pre-water inflow according to the weight of the clothes to be washed; the pre-inflow amount is 20% -70% of the total inflow amount, or the pre-inflow amount is a fixed value, the washing machine controls the total inflow amount to subtract the pre-inflow amount to obtain the subsequent inflow amount, then the pre-inflow process is executed according to the pre-inflow amount, after the pre-inflow process is finished, the actual inflow amount of the washing barrel is detected, a water inflow deviation parameter is determined according to the actual inflow amount and the corresponding theoretical inflow amount, and the subsequent inflow amount is adjusted according to the water inflow deviation parameter.
In a preferred embodiment, the total water inflow determination further integrates information such as the material of the clothes, and the total water inflow is determined according to the material, weight and style of the clothes.
For example, the washing machine comprises an RFID reader, the RFID reader identifies RFID electronic tags on clothes to be washed, and the RFID electronic tags store material information, weight information and style information of the clothes.
Example two
In the second embodiment, the washing machine sets the total water inflow and the pre-inflow, the washing machine performs the pre-inflow process of the pre-inflow water into the washing tub, detects the actual water inflow of the washing tub after the pre-inflow process is finished, determines a water inflow deviation parameter according to the actual water inflow and the pre-inflow water, and adjusts the subsequent water inflow according to the water inflow deviation parameter. The total water inflow can be selected by a user or automatically set by the washing machine.
Wherein, the water inflow deviation parameter is obtained by the following formula:
μ＝1-MS/ML(ii) a Wherein mu is the water inflow deviation parameter, MSThe actual water inflow of the washing tub, M, detected by the washing machine after the pre-water-inflow process is finishedLThe pre-feeding water quantity is obtained.
In the scheme, the subsequent water inflow is adjusted according to the water inflow deviation parameter, so that the final actual water inflow is ensured to be closer to the total water inflow.
The washing machine determines the total water inflow according to the weight of the clothes to be processed, and calculates the adjusted subsequent water inflow through the following formula.
ME＝(MZ-MY) 1+ μ; wherein M isEFor adjusted subsequent water inflow, MZTotal water inflow, MYThe water inlet amount is pre-determined.
According to the scheme, the theoretical value of the subsequent water inflow is obtained by subtracting the pre-inflow from the total water inflow, then the value is corrected to obtain the adjusted subsequent water inflow, and the washing machine executes the water inflow process according to the adjusted subsequent water inflow. Ensuring that the actual water inflow is closer to the theoretical value.
EXAMPLE III
In the third embodiment, even if the subsequent water inflow is adjusted, after the washing machine executes the corresponding water inflow process according to the subsequent water inflow, the actual water inflow of the washing machine still has a deviation with the total water inflow, and therefore, after the secondary water inflow process of the washing machine is finished, the water replenishing process is also required to be executed.
Specifically, the washing machine adjusts the subsequent water inflow M according to the adjusted water inflowEAnd executing a secondary water inlet process, detecting the actual water inflow of the washing barrel after the secondary water inlet process is finished, calculating the difference value of the actual water inflow and the theoretical water inflow (the set total water inflow of the washing machine) corresponding to the secondary water inlet process, and executing a corresponding water replenishing process according to the difference value.
In this embodiment, after the washing machine controls and executes the secondary water intake, the difference between the actual water intake and the theoretical water intake is continuously detected, whether to execute the water replenishing process or not is determined according to the difference, and the water replenishing amount corresponding to the water replenishing process is determined.
Specifically, the washing machine determines the water replenishing amount according to the difference value between the actual water inflow corresponding to the secondary water inflow process and the corresponding theoretical water inflow, and executes the corresponding water replenishing process according to the water replenishing amount.
Preferably, the washing machine is according to formula Mb＝(MZ–Mf) (1+ mu) correcting the water supplement amount, and supplementing water according to the corrected water supplement amount, wherein M isbFor the corrected amount of make-up water, MfThe actual total water inflow of the washing tub detected after the secondary water inflow process is finished.
In the scheme, deviation correction calculation is also carried out on the water supplement amount to reduce the deviation between the actual water inflow and the total water inflow.
In a preferred control method: after the washing machine executes the secondary water inlet process, detecting the actual water inlet amount of the washing barrel, comparing the actual water inlet amount with the corresponding theoretical water inlet amount, judging whether the actual water inlet amount is smaller than the theoretical water inlet amount, if so, controlling to execute the water replenishing process, otherwise, ending the control.
In another control scheme: after the washing machine executes the secondary water inlet process, detecting the actual water inlet amount of the washing barrel, comparing the actual water inlet amount with the corresponding theoretical water inlet amount, judging whether the difference value between the actual water inlet amount and the theoretical water inlet amount is larger than a set value or not, if so, controlling to execute the water replenishing process, otherwise, controlling to end.
The water inflow can be controlled through the flow meter in the water replenishing process of the washing machine, and then the water inflow is controlled through the washing machine according to detected motor data, so that the water inflow is accurately controlled.
Example four
In the fourth embodiment, the automatic water inlet principle and the actual water inlet amount detection principle of the washing machine are explained.
The washing machine comprises a flow meter, and in the pre-water inlet process, the washing machine controls the water of the pre-inlet amount to enter the washing barrel through the flow meter. That is, the washing machine feeds a required amount of water, such as a pre-feed amount, into the washing tub according to the flow rate detected by the flow meter.
The washing machine detects the weight of clothes to be washed before water is fed, detects the load of the washing barrel after the water feeding process is finished, and determines the actual water feeding amount of the washing barrel according to the difference between the load of the washing barrel and the weight of the clothes to be washed.
The weight of the clothes to be washed can be detected by the motor, and the information of the clothes can be identified by an RFID reader; and the load of the washing barrel is detected by the motor after the pre-water inlet process is finished. Specifically, the washing machine control motor detects the load of the washing tub: when the washing machine controls the inner barrel to rotate to a set rotating speed, the motor is controlled to be powered off, the output signal of the motor is detected, and the load of the washing barrel is determined according to the output signal.
The washing machine detects the load weight through the motor, and the process of detecting the washing bucket load of the washing machine comprises the following steps: when the washing machine controls the washing barrel to rotate to a set rotating speed, the motor is controlled to be powered off, the output signal of the motor is detected, and the load of the washing barrel is determined according to the output signal. Specifically, the method comprises the following steps: the motor can be driven to reach a set rotating speed, then the motor is controlled to be powered off, the pulse frequency of a pulse signal output by the motor during the period from the set rotation to the complete stop of the washing barrel after the motor is powered off is recorded, and the weight of the load in the washing barrel is determined through the pulse frequency by utilizing the corresponding relation between the pulse frequency and the weight of clothes.
EXAMPLE five
The fifth embodiment provides a washing machine adopting the control method of the washing machine, wherein the washing machine is a hole-free inner-barrel washing machine and comprises a box body and a washing barrel rotatably arranged in the box body, and the washing barrel is used for containing washing water in the washing process.
More specifically, the wall of the washing tub is not provided with a large number of dewatering holes, and both the washing water and the rinsing water are collected in the washing tub, which is a water containing tub and a centrifugal dewatering tub. During centrifugal dehydration, the washing barrel rotates at a high speed, and residual water in clothes is upwards thrown out along the inner wall of the washing barrel under the action of centrifugal force through a circle of overflow holes distributed below the balance ring at the barrel opening of the washing barrel. As the water in the interlayer of the inner and outer barrels of the traditional washing machine is saved, the water-saving effect of the washing machine can reach more than 50 percent on average.
Referring to fig. 2, the washing machine of the present embodiment includes an outer tub 1, a rotatable washing tub 2, and a circle of overflow holes 3 (also called as dewatering holes) distributed below a balancing ring at the top of the washing tub. The laundry 4 is directly put in the washing tub. The washing machine includes a motor 5, and a controller of the washing machine controls the motor 5 to perform a weighing operation and determines a load of a washing tub according to the number of pulses output from the motor. A water inlet pipeline of the washing machine is provided with a flow meter, a controller of the washing machine is in data connection with the flow meter, and water inflow is controlled according to the flow meter.
Referring to fig. 1, there is provided a control method of the washing machine:
s1, detecting the weight of the clothes to be washed by the washing machine;
s2, setting total water inflow and pre-water inflow by the washing machine according to the weight of the clothes to be washed;
s3, the washing machine executes a pre-water inlet process of feeding the pre-inlet water into the washing tub;
s4, after the pre-water inlet process is finished, detecting the actual water inlet amount of the washing barrel, determining a water inlet amount deviation parameter according to the actual water inlet amount and the pre-water inlet amount, and adjusting the subsequent water inlet amount according to the water inlet amount deviation parameter;
s5, the washing machine executes a corresponding secondary water inlet process;
s6, the washing machine determines the water supplementing quantity according to the difference value between the actual total water inflow detected after the secondary water inflow process and the set total water inflow of the washing machine;
and S6, the washing machine executes a corresponding water replenishing process.
By adopting the technical scheme in each embodiment, the invention has the following beneficial effects:
the washing machine of the invention is a nonporous inner barrel washing machine, namely: the washing machine comprises a washing barrel which is rotatably arranged, wherein the washing barrel holds washing water in the washing process, and the water inlet control method of the washing machine comprises the following steps: the washing machine executes a pre-water inlet process, detects the actual water inflow of the washing barrel after the pre-water inlet process is finished, determines a water inflow deviation parameter according to the actual water inflow and the theoretical water inflow corresponding to the pre-water inlet process, and adjusts the subsequent water inflow according to the water inflow deviation parameter. The invention provides a water inlet control method for correcting water inlet deviation by adopting motor weighing and water inlet in different times, aiming at the problem that the traditional pressure type water level sensor is difficult to detect and control the water inlet of the existing imperforate inner barrel washing machine, and accurately controlling the water inlet of the washing machine.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A water inlet control method for a washing machine, the washing machine comprises a washing barrel which can be rotatably arranged, and the washing barrel holds washing water in the washing process, and the control method is characterized by comprising the following steps: the washing machine executes a pre-water inlet process, detects the actual water inflow of the washing barrel after the pre-water inlet process is finished, determines a water inflow deviation parameter according to the actual water inflow and the theoretical water inflow corresponding to the pre-water inlet process, and adjusts the subsequent water inflow according to the water inflow deviation parameter.
2. The water inlet control method of the washing machine as claimed in claim 1, wherein the washing machine sets a total water inlet amount and a pre-water inlet amount, the washing machine performs a pre-water inlet process of feeding the pre-water inlet amount of water into the washing tub, detects an actual water inlet amount of the washing tub after the pre-water inlet process is finished, determines a water inlet amount deviation parameter according to the actual water inlet amount and the pre-water inlet amount, and adjusts a subsequent water inlet amount according to the water inlet amount deviation parameter.
3. The water inlet control method of the washing machine as claimed in claim 2, wherein the washing machine comprises a flow meter, and the washing machine controls the inlet of the pre-inlet water into the washing tub through the flow meter during the pre-inlet process.
4. The water inlet control method of the washing machine as claimed in claim 2, wherein after the pre-water inlet process is finished, the washing machine detects the load of the washing tub, and determines the actual water inlet amount of the washing tub according to the difference between the load of the washing tub and the weight of the laundry;
preferably, the washing machine control motor detects a load of the washing tub: when the washing machine controls the inner barrel to rotate to a set rotating speed, the motor is controlled to be powered off, the output signal of the motor is detected, and the load of the washing barrel is determined according to the output signal.
5. The washing machine water inlet control method as claimed in claim 2, wherein the water inlet deviation parameter is obtained by the following formula:
μ＝1-MS/ML(ii) a Wherein mu is the water inflow deviation parameter, MSThe actual water inflow of the washing tub, M, detected by the washing machine after the pre-water-inflow process is finishedLThe pre-feeding water quantity is obtained.
6. The washing machine water inlet control method as claimed in claim 5, wherein the washing machine determines the total water inlet amount according to the weight of the laundry to be treated, and the washing machine calculates the adjusted subsequent water inlet amount by the following formula;
ME＝(MZ-MY) 1+ μ; wherein M isEFor adjusted subsequent water inflow, MZThe total water inflow is the total water inflow,MYthe water inlet amount is pre-determined.
7. The method as claimed in claim 6, wherein the washing machine performs a secondary water supply process of supplying the adjusted water of the subsequent water supply amount into the washing tub, detects an actual total water supply amount of the washing tub after the secondary water supply process is completed, determines a water supply amount according to a difference between the actual total water supply amount and the total water supply amount set by the washing machine, and performs a water supply process of supplying the water of the water supply amount into the washing tub.
8. The method as claimed in claim 7, wherein the washing machine is based on formula Mb＝(MZ–Mf) (1+ mu) correcting the water supplement amount, and supplementing water according to the corrected water supplement amount, wherein M isbFor the corrected amount of make-up water, MfThe actual total water inflow of the washing tub detected after the secondary water inflow process is finished.
9. A washing machine water inlet control method according to any one of claims 1 to 8, wherein the washing machine determines a total water inlet amount and a preliminary water inlet amount according to the weight of laundry; wherein the pre-inflow amount is 20% -70% of the total inflow amount, or the pre-inflow amount is a fixed value.
10. A washing machine adopting the method for controlling water inflow of the washing machine as claimed in any one of claims 1 to 9, comprising a cabinet and a washing tub rotatably provided in the cabinet, the washing tub being adapted to receive washing water during a washing process.
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Cited By (3)
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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