CN112481929A - Washing machine and control method thereof - Google Patents
Washing machine and control method thereof Download PDFInfo
- Publication number
- CN112481929A CN112481929A CN201910767594.1A CN201910767594A CN112481929A CN 112481929 A CN112481929 A CN 112481929A CN 201910767594 A CN201910767594 A CN 201910767594A CN 112481929 A CN112481929 A CN 112481929A
- Authority
- CN
- China
- Prior art keywords
- washing
- control system
- water quality
- water
- washing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a washing machine, which comprises an inner barrel, wherein the inner barrel is independently filled with washing water when washing; the washing machine also comprises a water quality detection device for detecting the water quality information of the washing water in the inner barrel. The invention also discloses a control method of the washing machine, the washing machine comprises a control system electrically connected with the water quality detection device, and the control system controls the washing process according to the water quality parameter measured value fed back by the water quality detection device. The invention adopts the water quality detection device to detect the water quality in the non-porous inner barrel, controls the washing machine to stop immediately after cleaning, can achieve the effects of saving water and electricity, simultaneously enhances the control on the washing state, and avoids the phenomenon that the clothes treatment agent is remained and the clothes are damaged due to the unclean washing or unclean rinsing.
Description
Technical Field
The invention belongs to the technical field of washing machines, and particularly relates to a washing machine and a control method thereof.
Background
As an important household appliance in the household life, the washing machine greatly improves the life quality of residents. Along with the improvement of living standard of people, the requirement on the intelligent level of the washing machine is higher and higher. The washing mode of the existing washing machine generally adopts a timing washing mode, but the timing washing mode is not beneficial to controlling the clean level of clothes, and the problems of long washing time, waste of electric power and water resources, short washing time, substandard clothes cleaning degree caused by short washing time and the like generally exist.
Chinese patent No. 200710084288.5 discloses a method for washing clothes and stopping clothes instantly and a washing and stopping full-automatic washing machine using the same, comprising: feeding clear water; reading a measured value A of the turbidity sensor by a computer board; washing is carried out, and a measured value B is read in before the washing is finished; continuing washing to set time, and reading the measured value C by the computer board; B-C ═ D; if D is less than k, rinsing; if D is larger than k, continuing to wash and reading the measured value for comparison until the difference between the values read in the last two times is smaller than k. The invention can correctly judge whether the dirt in the clothes is washed out, thereby achieving the effects of water saving and electricity saving.
However, in order to solve the problem that the washing water is filled between the inner tub and the outer tub, which causes dirt to be trapped between the inner tub and the outer tub, washing machines having inner tubs without holes have been proposed. The nonporous inner barrel independently contains the washing water in the washing process, no water exists between the inner barrel and the outer barrel, and the judgment logic related in the patent requires that the turbidity sensor is contacted with the washing water at any time, thereby causing inconvenience for the application of the patent on the nonporous inner barrel washing machine. On the other hand, the starting time of the turbidity determination in the above patent is limited by the preset washing time, and the function of stopping washing of the washing machine immediately after washing cannot be sufficiently performed.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a washing machine and a control method thereof.
In order to solve the technical problems, the invention adopts the technical scheme that:
a washing machine comprises
The inner barrel is used for independently containing washing water when washing clothes;
also comprises
And a water quality detection device for detecting the water quality information of the washing water in the inner barrel.
Further, a water collecting device arranged outside the inner barrel is included;
the bottom of the inner barrel is provided with a drain hole, and the bottom of the water collecting device is provided with a drainage structure at a position corresponding to the drain hole;
the water quality detection device is arranged at the bottom of the water collecting device and is close to the drainage structure.
Further, a water collecting device arranged outside the inner barrel is included;
the bottom of the inner barrel is provided with a drain hole, the bottom of the water collecting device is provided with a drainage structure at a position corresponding to the drain hole, and the drainage structure at least comprises a valve plug capable of opening and closing the drain hole by stretching up and down;
the water quality detection device is arranged on the valve plug.
The control method of the washing machine comprises the step of controlling the washing process by the control system electrically connected with the water quality detection device according to the water quality parameter measured value fed back by the water quality detection device.
Further, the water quality detection device is arranged on the valve plug;
the control system is provided with a time interval T0；
During the washing process, the control system is arranged at intervals T0And the water quality detection device is controlled to detect the water quality in the inner barrel, and the detection result is fed back to the control system.
Furthermore, the water quality detection device is arranged at the bottom of the water collecting device and close to the drainage structure;
the control system is provided with a time interval T0；
During the washing process, the control system is arranged at intervals T0Controlling said water dischargeThe structure is opened, and the water quality detection device detects the quality of the drained water and feeds back the detection result to the control system.
Furthermore, the control system is provided with a time interval T1；
The control system controls the opening time of the drainage structure to be a time interval T1。
Furthermore, a water circulation structure electrically connected with the control system is arranged on the washing machine;
the control system controls the drainage discharged by the drainage structure to reenter the inner barrel through the water circulation structure.
Furthermore, a washing proportionality coefficient is set in the control system;
the control system makes a difference on two feedback signals of the water quality detection device before and after the same time interval, and meanwhile, the control system makes a ratio on the difference value of two adjacent times, and the ratio is compared with the cleaning proportionality coefficient;
when the ratio is larger than or equal to the washing proportionality coefficient, the control system judges that the clothes are not washed and controls the inner barrel to continue washing; when the ratio is smaller than the washing proportionality coefficient, the control system judges that the clothes are washed and controls the inner drum to stop washing.
Further, the control system is provided with the longest washing time;
in the washing process, when the total washing time is equal to the longest washing time or the ratio is less than the washing proportionality coefficient, the control system controls the washing program to end;
preferably, the control system sends a warning signal when the total washing time is equal to the maximum washing time.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1) The invention adopts the water quality detection device to detect the water quality in the non-porous inner barrel, controls the washing machine to stop immediately after cleaning, can achieve the effects of saving water and electricity, simultaneously enhances the control on the washing state, and avoids the phenomenon that the clothes treatment agent is remained and the clothes are damaged due to the unclean washing or unclean rinsing;
2) the water quality detection device is arranged on the drainage structure by utilizing the drainage structure of the washing machine, so that the water quality detection device can detect the water quality in the inner barrel in real time, and the influence of the rotation of the non-porous inner barrel on the water quality detection is avoided;
3) the invention introduces the concept of time interval, the detection process is not influenced by the preset washing time, the function of the water quality detection device can be exerted to the maximum extent, and the aim of stopping the clothes washing immediately is fulfilled.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of the structure of the washing machine of the present invention;
FIG. 2 is an exploded view of the washing machine according to the present invention;
FIG. 3 is an enlarged schematic view of a structure at position A according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the second embodiment A of the present invention;
FIG. 5 is a control method flowchart according to an embodiment of the present invention;
fig. 6 is a flowchart of a control method according to a second embodiment of the present invention.
In the figure: 100. an inner barrel; 101. an inner barrel body; 102. an inner barrel bottom; 103. an inner barrel flange; 104. a balance ring; 105. a first drain hole; 106. a second drain hole; 200. a water collection device; 201. a first mounting hole; 202. an outer barrel bottom; 203. a drain hole; 300. a locking structure; 301 a locking hole; 325. a guide rail; 400. a drainage structure; 401. a valve plug; 420. fastening a bolt; 500. a water quality detection device.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
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", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, 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," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.
As shown in fig. 1 and 2, the washing machine of the present invention includes an inner tub 100 and a water collecting device 200, the inner tub 101 has no water leakage hole communicating with the water collecting device, a first water discharge hole 105 is formed at the bottom of the inner tub, a circle of second water discharge holes 106 is formed at the upper part of the inner tub 100, and when washing, the first drain hole 105 at the bottom of the inner tub is closed, only water exists in the inner tub 100, no water exists between the inner tub 100 and the water collecting device 200, and after washing is finished, the first drain hole 105 at the bottom of the inner tub is opened, most of the water is drained from the first drain hole 105, when dewatering, the inner tub 100 rotates, the water that is drained from the clothes rises along the tub wall by the centrifugal force, is discharged out of the inner tub to the space between the inner water collecting devices through the second water discharge hole 106 at the upper part of the inner tub, and is discharged out through the water discharge hole 203 of the water collecting device 200, therefore, the washing water is only stored in the inner barrel 100 during washing, and no washing water exists outside the inner barrel, so that the washing machine has the characteristic of water conservation; in the process of draining and/or dehydrating, the first drainage hole 105 is opened, most of water, sediment such as silt, particles and the like are drained from the first drainage hole 105 at the lower part into the water collecting device, water in clothes is drained from the second drainage hole 106 at the upper part of the inner barrel into the water collecting device 200 when the inner barrel rotates at a high speed for dehydrating, and the water is directly drained out of the washing machine from a drainage port and a drainage pipe at the bottom of the water collecting device, so that the effects of quick drainage and good drainage and pollution discharge are realized.
The present invention provides a drain structure 400 controlling the opening/closing of the first drain hole 105 at the bottom of the first drain hole 105. The water discharging structure 400 controls the first water discharging hole 105 to be closed during water inlet/washing, and the water discharging structure 400 controls the first water discharging hole 105 to be opened during water discharging/dehydrating, and adds the locking structure 300 at the bottom of the inner tub 100. The drain structure 400 is provided on the water collecting device 200, fixed in a circumferential direction, and the first drain hole 105 is provided on the inner tub 100. When the first drainage hole 105 needs the drainage structure 400 to close the inner tub, the positions of the first drainage hole 105 and the drainage structure 400 are not necessarily in the same position, the locking structure 300 can lock the inner tub 100 after the inner tub is positioned to the position where the first drainage hole 105 corresponds to the position of the drainage structure 400, and the drainage structure 400 seals the first drainage hole 105. The locking structure 300 also effectively prevents the inner tub 100 from rotating when the washing machine is supplied with water and washing, and the drain structure 400 at the bottom of the inner tub, which controls the opening/closing of the first drain hole 105, from being disabled.
As shown in fig. 3 and 4, the present invention further includes a water quality detecting device 500, which can detect the water quality in the inner tub 100, and control the washing process of the washing machine according to the water quality in the inner tub 100, so as to achieve the purpose of saving water and electricity in time. The problems of incomplete washing and incomplete rinsing caused by insufficient washing are avoided, and the damage to clothes caused by the residual of the clothes treating agent is avoided.
The water collecting device 200 of the present invention may be an outer tub disposed outside the inner tub 100, or may be a water collecting tray disposed at the bottom of the inner tub, or the water collecting device may directly employ a washing machine casing.
The water collecting device 200 of the present invention will be described with reference to the outer tub.
Example one
As shown in fig. 3, the washing machine of this embodiment includes an outer tub 200 disposed outside an inner tub 100, a first drain hole 105 is disposed at the bottom of the inner tub 100, a drain structure 400 is disposed at a position corresponding to the drain hole 105 at the bottom of the outer tub 200, the drain structure 400 at least includes a valve plug 401 capable of opening and closing the first drain hole 105 by extending and retracting up and down, and the water quality detection device 500 is disposed on the valve plug 401.
With water quality testing device 500 setting at the top of valve plug 401, can ensure at the laundry in-process, water quality testing device contacts with the laundry water all the time, has guaranteed water quality testing device 500 measuring accuracy and reliability, and the testing process does not have the time delay moreover, saves time. When needing the drainage, the drainage is discharged from first drainage hole 105, directly erodes on water quality testing device 500, can play fine washing effect to water quality testing device 500, avoids causing the influence to the detection precision because of piling up of laundry in-process dirt, has guaranteed water quality testing device 500's detection accuracy, has improved washing machine's control accuracy.
On the basis of the structure of the washing machine, the embodiment further relates to a control method of the washing machine, the washing machine comprises a control system electrically connected with the water quality detection device, and the control system controls the washing process according to the water quality parameter measured value fed back by the water quality detection device 500.
The program diagram of the control method of the washing machine is shown in fig. 5, after the clothes are placed, firstly, clean water is fed into the washing machine, and the water quality detection device 500 detects a group of water quality data A0Then, the clothes treating agent is put into the washing machine, and when the whole water is fedAfter the process is finished, the washing machine enters a washing program to start washing. The process can obtain the most accurate initial data of water quality, and provides a powerful reference for the following control process.
The control system is provided with a time interval T0During the washing process, the control system is arranged at intervals T0The water quality detecting device 500 is controlled to detect the water quality in the inner tub 100, and the detection result is fed back to the control system.
When the time reaches the time interval T after the washing starts0In time, the control system controls the water quality detection device 500 to detect the water quality in the inner barrel to obtain a water quality measured value A1(ii) a Continuing washing when the total washing time does not reach the maximum washing time and the washing time interval reaches the time interval T0In time, the control system controls the water quality detection device 500 to detect the water quality in the inner barrel to obtain a water quality detection value A2(ii) a Continuing washing when the total washing time does not reach the maximum washing time and the washing time interval reaches the time interval T0In time, the control system controls the water quality detection device 500 to detect the water quality in the inner barrel to obtain a water quality detection value A2’And the operation is circulated in such a way. Because the water quality detection device 500 is arranged on the valve plug 401, the valve plug 401 covers the first drainage hole 105 and is in direct contact with water in the inner barrel 100, and in the detection process, the water quality detection device is controlled between the control systems to detect the water quality in the inner barrel, so that the washing process in the inner barrel is not influenced. This setting can effectual assurance data acquisition's accuracy and real-time nature, has guaranteed the smoothness nature of laundry process simultaneously.
The control system is provided with a cleaning proportionality coefficient k, and performs difference on two feedback signals of the water quality detection device before and after the same time interval, namely A2’-A2And A2-A1At the same time, the control system makes a ratio to the difference between two adjacent times, i.e. (A)2’-A2)/(A2-A1) And comparing the ratio with the washing proportionality coefficient k.
When said ratio (A) is2’-A2)/(A2-A1) When the washing proportion coefficient is larger than or equal to the washing proportion coefficient k, the control system judges that the clothes are not washed and controls the inner barrel to continue washing; when said ratio (A) is2’-A2)/(A2-A1) When the washing proportion coefficient k is smaller than the washing proportion coefficient k, the control system judges that the clothes are washed, controls the inner barrel 100 to stop washing, and drains water to enter a rinsing program. The water quality condition of the inner barrel 100 is judged in a ratio mode by adopting a mode of introducing a washing proportionality coefficient k (the value of k is less than 1, and specific parameters can be selected according to specific conditions), the process of gradual convergence of the proportionality coefficient can make a powerful indication on the cleaning condition of clothes, and the accuracy of judging the water quality is effectively improved.
Alternatively, in order to simplify the determination logic, the cleaning coefficient k' may be directly set in a control system that performs a difference between two feedback signals, i.e., a, before and after the same time interval of the water quality detector2-A1Or A2’-A2The difference is directly compared with the cleaning coefficient k'. When said difference A is2-A1Or A2’-A2When the washing coefficient is larger than or equal to the washing coefficient k', the control system judges that the clothes are not washed and controls the inner barrel to continue washing; when said difference A is2-A1Or A2’-A2When the washing coefficient k 'is smaller than the washing coefficient k', the control system judges that the laundry is washed, controls the inner tub 100 to stop washing, and drains water to enter a rinsing process.
The existing washing machine is usually provided with washing time, and even if the control method has a water quality detection function, the situation that the washing effect still does not meet the washing requirement when the washing time is reached cannot be avoided. Therefore, the present invention does not preset the washing time in the washing machine in the design procedure, depending on the time interval T0The water quality is detected circularly, once the detection result reaches the washing effect, the washing machine is controlled to stop washing, the washing time is possibly prolonged compared with that of the conventional washing machine, and the washing effect can be effectively ensured. But instead of the other end of the tubeIn order to avoid the waste of electric power caused by excessively long washing time, the longest washing time is involved in the scheme, and the washing condition is controlled by setting the longest washing time.
When the result of the detection closest to the longest washing time still cannot achieve the washing effect and the total washing time is equal to the longest washing time, the control system controls the washing program to end. Preferably, the control system sends a warning signal when the total washing time is equal to the maximum washing time. The control system has a waiting period with a time interval after sending the warning signal, the user has the authority to select to continue washing or finish washing or perform other operations in the waiting period, and the washing machine selects to finish washing by default after the time exceeds the waiting period, and then enters a rinsing program.
When the washing machine enters a rinsing process and rinsing is finished, the control system controls the water quality detection device 500 to detect the water quality in the inner barrel 100 to obtain a water quality detection value A3And measuring the water quality A after rinsing3Measured value A of water quality with clear water0And (5) performing difference making, and presetting a drift coefficient C in the control system. When the difference value is larger than or equal to the rinsing coefficient C, the control system judges that the rinsing effect of the clothes is not achieved, controls the washing machine to discharge water for secondary rinsing, and operates in a circulating mode; and when the difference value is smaller than the rinsing coefficient C, the control system judges that the rinsing of the clothes achieves the effect, controls the washing machine to drain water and dewater, and finishes washing.
Example two
As shown in fig. 4, the washing machine of the present embodiment includes an outer tub 200 disposed outside the inner tub 100, a first drain hole 105 is disposed at the bottom of the inner tub 100, a drain structure 400 is disposed at the bottom of the outer tub 200 corresponding to the drain hole 105, and a water quality detecting device 500 is disposed at the bottom of the outer tub 200 and adjacent to the drain structure 400.
The water quality detection device is disposed on the outer tub 200, and the water quality in the inner tub 100 can be detected by controlling the opening and closing of the drain structure 400. Since the inner tub 100 is restricted by the locking structure 300 during the washing process, the inner tub 100 is always in a stationary state, and the opening of the drain result 400 does not affect the washing process. In this embodiment, since the water quality in the inner tub 100 needs to be detected by controlling the drainage, the water quantity in the inner tub 100 will be affected after the drainage, which is not favorable for the accuracy of the water quality detection and is also not favorable for achieving the washing effect of the laundry, the washing machine in this embodiment is provided with a water circulation structure (not shown), and the drainage is reintroduced into the inner tub 100 according to the water circulation result.
In another embodiment, the water quality detecting device 500 may be disposed in the water circulation structure, and preferably has the lowest point where the drained water is collected. The water circulation structure is a conventional technical method in the field of washing machines, and the specific mode of arrangement is not described in detail in the invention.
On the basis of the structure of the washing machine, the embodiment further relates to a control method of the washing machine, the washing machine comprises a control system electrically connected with the water quality detection device 500, and the control system controls the washing process according to the water quality parameter measured value fed back by the water quality detection device 500.
Fig. 6 shows a program diagram of a control method of a washing machine, after clothes are placed, clean water is firstly fed into the washing machine, at this time, the drainage structure 400 and the locking structure 300 are in a descending state, the first drainage hole 105 is opened, the clean water is discharged into the bottom of the outer tub 200 from the first drainage hole 105, and the water quality detection device 500 detects a group of water quality data a0. After that, the drain structure 400 and the locking structure 300 are lifted, the inner tub 100 is locked, water continues to be supplied into the washing machine and the laundry treating agent is supplied into the washing machine, and the washing machine enters a washing program to start washing after the whole water supply process is finished. The process can obtain the most accurate initial data of water quality, and provides a powerful reference for the following control process.
The control system is provided with a time interval T0During the washing process, the control system is arranged at intervals T0Controlling the drainage structure 400 to descend, opening the first drainage hole 105, allowing the water in the inner tub 100 to flow out through the first drainage hole 105, detecting the quality of the drained water by the water quality detecting device 500,and feeding back the detection result to the control system. In order to ensure accuracy and reliability of water quality detection while ensuring the amount of water in the inner tub 100, the water discharged through the first drain hole 105 is returned to the inner tub 100 again through the water circulation structure. In order to ensure that the amount of discharged water can meet the requirement of the water quality detection device 500 on the quality detection of the discharged water, a time interval T is set in the control system1The time period for controlling the water discharge structure 400 to descend for water discharge is T1。
When the time reaches the time interval T after the washing starts0When the water quality detection device 500 detects the water quality of the drained water, the water quality measurement value A is obtained1(ii) a Continuing washing when the total washing time does not reach the maximum washing time and the washing time interval reaches the time interval T0When the water quality detection device 500 detects the water quality of the drained water, the water quality detection value A is obtained2(ii) a Continuing washing when the total washing time does not reach the maximum washing time and the washing time interval reaches the time interval T0When the water quality detection device 500 detects the water quality of the drained water, the water quality detection value A is obtained2’And the operation is circulated in such a way. Since the water quality detecting device 500 is disposed on the bottom of the outer tub 200, the quality of the drain water flowing out through the first drain hole 105 is detected without direct contact with the water in the inner tub 100, and the washing process in the inner tub is not affected during the detection. Meanwhile, the water discharged through the first water discharge hole 105 erodes the water quality detection device 500, so that the phenomenon that dirt is deposited on the water quality detection device 500 to influence the detection precision is avoided, the accuracy of data acquisition is ensured, and the smoothness of the washing process is ensured.
The control system is provided with a cleaning proportionality coefficient k and is used for detecting the water quality of the water quality detection device at the same time intervalThe two feedback signals before and after are differed, i.e. A2’-A2And A2-A1At the same time, the control system makes a ratio to the difference between two adjacent times, i.e. (A)2’-A2)/(A2-A1) And comparing the ratio with the washing proportionality coefficient k.
When said ratio (A) is2’-A2)/(A2-A1) When the washing proportion coefficient is larger than or equal to the washing proportion coefficient k, the control system judges that the clothes are not washed and controls the inner barrel to continue washing; when said ratio (A) is2’-A2)/(A2-A1) When the washing proportion coefficient k is smaller than the washing proportion coefficient k, the control system judges that the clothes are washed, controls the inner barrel 100 to stop washing, and drains water to enter a rinsing program. The water quality condition of the inner barrel 100 is judged in a ratio mode by adopting a mode of introducing a washing proportionality coefficient k (the value of k is less than 1, and specific parameters can be selected according to specific conditions), the process of gradual convergence of the proportionality coefficient can make a powerful indication on the cleaning condition of clothes, and the accuracy of judging the water quality is effectively improved.
Alternatively, in order to simplify the determination logic, the cleaning coefficient k' may be directly set in a control system that performs a difference between two feedback signals, i.e., a, before and after the same time interval of the water quality detector2-A1Or A2’-A2The difference is directly compared with the cleaning coefficient k'. When said difference A is2-A1Or A2’-A2When the washing coefficient is larger than or equal to the washing coefficient k', the control system judges that the clothes are not washed and controls the inner barrel to continue washing; when said difference A is2-A1Or A2’-A2When the washing coefficient k 'is smaller than the washing coefficient k', the control system judges that the laundry is washed, controls the inner tub 100 to stop washing, and drains water to enter a rinsing process.
The washing time is usually set in the existing washing machine, even if the control method has a water quality detection function, the washing effect when the washing time is reached cannot be avoidedAnd the fruit still does not meet the washing requirement. Therefore, the present invention does not preset the washing time in the washing machine in the design procedure, depending on the time interval T0The water quality is detected circularly, once the detection result reaches the washing effect, the washing machine is controlled to stop washing, the washing time is possibly prolonged compared with that of the conventional washing machine, and the washing effect can be effectively ensured. However, the washing process still has special conditions, in order to avoid the waste of electric power caused by too long washing time, the scheme relates to the longest washing time, and the washing condition is controlled by setting the longest washing time.
When the result of the detection closest to the longest washing time still cannot achieve the washing effect and the total washing time is equal to the longest washing time, the control system controls the washing program to end. Preferably, the control system sends a warning signal when the total washing time is equal to the maximum washing time. The control system has a waiting period with a time interval after sending the warning signal, the user has the authority to select to continue washing or finish washing or perform other operations in the waiting period, and the washing machine selects to finish washing by default after the time exceeds the waiting period, and then enters a rinsing program.
When the washing machine enters a rinsing program, after rinsing is finished, the control system controls the drainage structure 400 to descend for drainage, and meanwhile, the water quality detection device 500 detects the quality of the drained water to obtain a water quality detection value A3And measuring the water quality A after rinsing3Measured value A of water quality with clear water0And (5) performing difference making, and presetting a drift coefficient C in the control system. When the difference value is larger than or equal to the rinsing coefficient C, the control system judges that the rinsing effect of the clothes is not achieved, controls the washing machine to discharge water for secondary rinsing, and operates in a circulating mode; when the difference value is smaller than the rinsing coefficient C, the control system judges that the rinsing of the clothes achieves the effect, controls the locking structure 300 to descend, locks the inner barrel 100 in a contact mode, drains water and dehydrates the water of the washing machine, and the washing is finished.
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 washing machine comprises
The inner barrel is used for independently containing washing water when washing clothes;
the method is characterized in that: also comprises
And a water quality detection device for detecting the water quality information of the washing water in the inner barrel.
2. A washing machine as claimed in claim 1, characterized in that:
comprises a water collecting device arranged outside the inner barrel;
the bottom of the inner barrel is provided with a drain hole, and the bottom of the water collecting device is provided with a drainage structure at a position corresponding to the drain hole;
the water quality detection device is arranged at the bottom of the water collecting device and is close to the drainage structure.
3. A washing machine as claimed in claim 1, characterized in that:
comprises a water collecting device arranged outside the inner barrel;
the bottom of the inner barrel is provided with a drain hole, the bottom of the water collecting device is provided with a drainage structure at a position corresponding to the drain hole, and the drainage structure at least comprises a valve plug capable of opening and closing the drain hole by stretching up and down;
the water quality detection device is arranged on the valve plug.
4. A control method of a washing machine as claimed in any one of claims 1 to 3, the washing machine comprising a control system electrically connected to the water quality detecting device, characterized in that:
the control system controls the washing process according to the water quality parameter measured value fed back by the water quality detection device.
5. The control method of a washing machine as claimed in claim 4, wherein:
the water quality detection device is arranged on the valve plug;
the control system is provided with a time interval T0；
During the washing process, the control system is arranged at intervals T0And the water quality detection device is controlled to detect the water quality in the inner barrel, and the detection result is fed back to the control system.
6. The control method of a washing machine as claimed in claim 5, wherein:
the water quality detection device is arranged at the bottom of the water collecting device and is close to the drainage structure;
the control system is provided with a time interval T0；
During the washing process, the control system is arranged at intervals T0And the water quality detection device detects the quality of the drained water and feeds back the detection result to the control system.
7. The control method of a washing machine as claimed in claim 6, wherein:
the control system is provided with a time interval T1；
The control system controls the opening time of the drainage structure to be a time interval T1。
8. The control method of a washing machine as claimed in claim 6, wherein:
the washing machine is provided with a water circulation structure electrically connected with the control system;
the control system controls the drainage discharged by the drainage structure to reenter the inner barrel through the water circulation structure.
9. The control method of a washing machine as claimed in any one of claims 5 or 6, wherein:
a washing proportionality coefficient is set in the control system;
the control system makes a difference on two feedback signals of the water quality detection device before and after the same time interval, and meanwhile, the control system makes a ratio on the difference value of two adjacent times, and the ratio is compared with the cleaning proportionality coefficient;
when the ratio is larger than or equal to the washing proportionality coefficient, the control system judges that the clothes are not washed and controls the inner barrel to continue washing; when the ratio is smaller than the washing proportionality coefficient, the control system judges that the clothes are washed and controls the inner drum to stop washing.
10. The control method of a washing machine as claimed in claim 9, wherein: the longest washing time is set in the control system;
in the washing process, when the total washing time is equal to the longest washing time or the ratio is less than the washing proportionality coefficient, the control system controls the washing program to end;
preferably, the control system sends a warning signal when the total washing time is equal to the maximum washing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767594.1A CN112481929A (en) | 2019-08-20 | 2019-08-20 | Washing machine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910767594.1A CN112481929A (en) | 2019-08-20 | 2019-08-20 | Washing machine and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112481929A true CN112481929A (en) | 2021-03-12 |
Family
ID=74919705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910767594.1A Pending CN112481929A (en) | 2019-08-20 | 2019-08-20 | Washing machine and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112481929A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048139A (en) * | 1985-01-08 | 1991-09-17 | Sharp Kabushiki Kaisha | Washing machine with a turbidimeter and method of operating same |
| CN101250802A (en) * | 2007-02-28 | 2008-08-27 | 海尔集团公司 | Clothes abstersion immediately stopping method and abstersion immediately stopping automatic washing machine using said method |
| CN104141211A (en) * | 2013-05-06 | 2014-11-12 | 海尔集团公司 | Clothes-washing control method and washing machine adopting same |
| CN105624988A (en) * | 2014-11-05 | 2016-06-01 | 青岛海尔洗衣机有限公司 | Full-automatic washing machine |
| CN106032633A (en) * | 2015-03-10 | 2016-10-19 | 青岛海尔洗衣机有限公司 | A washing machine and a control method therefor |
| CN106480645A (en) * | 2015-08-31 | 2017-03-08 | 青岛海尔洗衣机有限公司 | A kind of water-conservation washing machine method for controlling water level |
| CN108385336A (en) * | 2018-05-18 | 2018-08-10 | 青岛海尔洗衣机有限公司 | A kind of drain valve and the washing machine with the drain valve |
| CN108930136A (en) * | 2017-05-27 | 2018-12-04 | 青岛海尔洗衣机有限公司 | The control method of Turbidity measurement module, washing machine and washing machine |
-
2019
- 2019-08-20 CN CN201910767594.1A patent/CN112481929A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048139A (en) * | 1985-01-08 | 1991-09-17 | Sharp Kabushiki Kaisha | Washing machine with a turbidimeter and method of operating same |
| CN101250802A (en) * | 2007-02-28 | 2008-08-27 | 海尔集团公司 | Clothes abstersion immediately stopping method and abstersion immediately stopping automatic washing machine using said method |
| CN104141211A (en) * | 2013-05-06 | 2014-11-12 | 海尔集团公司 | Clothes-washing control method and washing machine adopting same |
| CN105624988A (en) * | 2014-11-05 | 2016-06-01 | 青岛海尔洗衣机有限公司 | Full-automatic washing machine |
| CN106032633A (en) * | 2015-03-10 | 2016-10-19 | 青岛海尔洗衣机有限公司 | A washing machine and a control method therefor |
| CN106480645A (en) * | 2015-08-31 | 2017-03-08 | 青岛海尔洗衣机有限公司 | A kind of water-conservation washing machine method for controlling water level |
| CN108930136A (en) * | 2017-05-27 | 2018-12-04 | 青岛海尔洗衣机有限公司 | The control method of Turbidity measurement module, washing machine and washing machine |
| CN108385336A (en) * | 2018-05-18 | 2018-08-10 | 青岛海尔洗衣机有限公司 | A kind of drain valve and the washing machine with the drain valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110846851A (en) | Control method of washing machine and washing machine | |
| US20180171529A1 (en) | Control method of flocculation washing machine, and washing machine | |
| KR100836329B1 (en) | Method of washing the laundary | |
| CN107142667B (en) | Washing machine water inflow control method and washing machine | |
| CN107177954A (en) | A kind of control method for washing and washing machine | |
| CN206867200U (en) | A kind of domestic bowl-washing water quality detecting device | |
| GB2266898A (en) | Rinsing in washing machines | |
| CN113389009A (en) | Barrel cleaning control method of washing machine and washing machine | |
| CN112481929A (en) | Washing machine and control method thereof | |
| AU2011351584A1 (en) | A washing machine with self-cleaning feature | |
| CN108978113B (en) | Foam detection method of washing machine | |
| CN110924047B (en) | Washing machine control method and washing machine | |
| CN111155278B (en) | Clothes material detection method and washing machine control method | |
| CN113123065B (en) | Laundry treatment apparatus, control method of laundry treatment apparatus, and storage medium | |
| CN112411125A (en) | Filth blockage prompting method for laundry equipment | |
| CN108978114B (en) | Foam detection method of washing machine | |
| JPH02149295A (en) | Washing machine | |
| JP2019111035A (en) | Washing machine | |
| CN112411119A (en) | Washing machine and control method thereof | |
| JP7423871B2 (en) | Drum washing machine and its control method | |
| JPH06335588A (en) | Drum type washing machine | |
| CN117051555A (en) | Clothes treatment equipment and midway clothes adding control method thereof | |
| CN114763647A (en) | Control method of washing machine | |
| CN110904617A (en) | Control method of washing machine | |
| WO2020135133A1 (en) | Washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |