CN107587309B - Washing machine overflow protection method and full-automatic washing machine - Google Patents
Washing machine overflow protection method and full-automatic washing machine Download PDFInfo
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- CN107587309B CN107587309B CN201610538151.1A CN201610538151A CN107587309B CN 107587309 B CN107587309 B CN 107587309B CN 201610538151 A CN201610538151 A CN 201610538151A CN 107587309 B CN107587309 B CN 107587309B
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Abstract
The invention discloses a washing machine overflow protection method, and relates to the technical field of washing machines. The method comprises the following steps: A. setting an overflow protection water level of the washing machine, wherein the overflow protection water level is higher than a normal overflow water level of the washing machine; B. detecting and judging whether the washing machine reaches an overflow protection water level; C. judging whether the continuous time of the water level reaching the overflow protection water level exceeds a first set time, if so, starting an alarm of the washing machine, and if not, continuing the judging process; D. and after the alarm lasts for the second set time, the washing machine is automatically powered off and shut down. The invention also discloses a full-automatic washing machine using the overflow protection method. The overflow protection water level is set, so that the phenomenon of non-stop water inflow or flooding under the abnormal condition of the water inlet valve of the washing machine is effectively prevented; the continuous timing judgment mode is adopted, so that the judgment is more accurate, the washing quality and the working efficiency of the washing machine are improved, and the resource waste and the potential safety hazard are reduced.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to an overflow protection method for a washing machine and a full-automatic washing machine using the same.
Background
The existing washing machines are generally provided with a normal overflow water level, when the water inflow reaches the normal overflow water level, the computer board of the washing machine controls the water inlet valve to stop water inflow, wherein the water exceeding the overflow port automatically flows out from the overflow port along the overflow pipe. However, when the controllable silicon of the water inlet valve is abnormal, the control of the water inlet valve by the computer board is failed, so that the washing machine is not only prevented from water inflow or flooded, and a large amount of resources are wasted, and potential safety hazards are brought to normal washing of users. On the other hand, the overflow protection method adopted by the existing washing machine is to judge whether the water level of the washing machine exceeds a set value by using the accumulated times when the water level reaches the overflow water level; because the washing machine can splash in the washing process, as long as the water inflow is a little more, the preset cumulative frequency can be reached very easily, thereby causing the misjudgment of a computer board, causing the frequent water stop or overflow of the washing machine and seriously influencing the washing quality and the working efficiency of the washing machine.
Disclosure of Invention
In view of the above problems, it is desirable to provide an overflow protection method for a washing machine, which can control the water level of the washing machine even when a thyristor of a water inlet valve fails, and has an accurate and efficient control process, and a full-automatic washing machine using the same.
In order to achieve the purpose, the invention adopts the following technical scheme:
an overflow protection method for a washing machine comprises the following steps:
step A: setting an overflow protection water level of the washing machine, wherein the overflow protection water level is higher than a normal overflow water level of the washing machine;
and B: detecting and judging whether the washing machine reaches an overflow protection water level;
and C: judging whether the continuous time of the water level reaching the overflow protection water level exceeds a first set time, if so, starting an alarm of the washing machine, and if not, continuing the judging process;
step D: and after the alarm lasts for the second set time, the washing machine is automatically powered off and shut down.
As a preferable scheme of the overflow protection method of the washing machine, the water level in the washing machine does not rise beyond the overflow opening of the washing machine within the total time of the first set time and the second set time.
As a preferable scheme of the washing machine overflow protection method, the overflow protection water level is arranged at 30 cm below an overflow opening of the washing machine.
As a preferable scheme of the overflow protection method of the washing machine, the first set time in the step C is 5 minutes; the second setting time in the step D is 10 minutes.
As a preferable scheme of the overflow protection method of the washing machine, the alarm comprises a buzzer and a digital tube.
As a preferable scheme of the overflow protection method of the washing machine, the buzzer buzzes for 10 seconds every 2 minutes, wherein the buzzing frequency is 0.5 seconds ON and 0.5 seconds OFF; the frequency of the nixie tube flicker is 0.5 second ON and 0.5 second OFF.
As a preferable scheme of the washing machine overflow protection method, the washing machine overflow protection method is suitable for a washing machine water inlet program, a washing program or a rinsing program.
As a preferable scheme of the overflow protection method of the washing machine, the following steps are further arranged between the step a and the step B:
step A1: detecting and judging whether the washing machine reaches a normal overflow water level;
step A2: judging whether the continuous time of the water level reaching the normal overflow water level exceeds a third set time, if so, controlling the water inlet valve to stop water inlet by the host computer, and controlling the drain valve to drain water outwards; if not, the determination process is continued.
As a preferable scheme of the overflow protection method of the washing machine, the third set time in the step a2 is 5 minutes.
The invention also provides a full-automatic washing machine which uses the overflow protection method.
The invention has the beneficial effects that:
firstly, the overflow protection water level of the overflow protection device is higher than the normal overflow water level of the washing machine, when the silicon controlled rectifier of the water inlet valve is broken down or abnormal, the overflow protection water level plays a role, and the phenomenon that the washing machine is not stopped from water inflow or flooded is effectively prevented. Secondly, whether the continuous time for judging whether the water level reaches the overflow protection water level exceeds the first set time or not is determined to give an alarm, the continuous timing judging mode is more accurate than a general time accumulation judging mode, the influence of misjudgment and false alarm of the washing machine on a user is avoided, and the washing quality and the working efficiency of the washing machine are improved. And thirdly, the alarm process is continued for a certain time, so that the user can be reminded of taking measures in time, and if the user fails to operate within the specified time, the washing machine is automatically powered off and shut down, so that the waste of water resources and the potential safety hazard of the washing machine are reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a flowchart of an overflow protection method for a washing machine according to an embodiment of the present invention.
Fig. 2 is a flowchart of an overflow protection method for a washing machine according to a second embodiment of the present invention.
Fig. 3 is a flowchart of an overflow protection method for a washing machine according to a third embodiment of the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment provides a preferable washing machine overflow protection method, which is used for solving the problems that the existing washing machine is easy to have the situations of no water inflow and flooding under the condition of abnormal silicon controlled rectifier of a water inlet valve, and simultaneously solving the problems that the existing overflow protection method is inaccurate in judgment and easy to cause misoperation. The overflow protection method of the washing machine is suitable for the water inlet program, the washing program or the rinsing program of the washing machine. Specifically, as shown in fig. 1, the embodiment takes the overflow protection in the water inlet process of the washing machine as an example for explanation.
The overflow protection method of the washing machine comprises the following steps:
step 1: the washing machine is powered on and started.
Step 2: and setting the overflow protection water level of the washing machine according to the position of the overflow port on the outer barrel of the washing machine, wherein the overflow protection water level is higher than the normal overflow water level of the washing machine.
The overflow protection water level is set on the basis of the normal overflow water level, when the normal overflow water level is invalid, the washing machine can be still effectively prevented from entering water or flooding events, and the safety performance of the washing machine is improved.
And step 3: and selecting a water inlet program of the washing machine to start water inlet, and simultaneously resetting the result of the overflow protection timer.
And 4, step 4: and (5) detecting and judging whether the washing machine reaches the overflow protection water level, if so, performing the step 5, otherwise, returning to the step to continue monitoring.
The device used for detecting the water level of the washing machine in the step is a liquid level sensor arranged in the washing machine, preferably, the liquid level sensor is a plate-inserted liquid level sensor, the size is small, the monitoring precision is high, the liquid level error is less than +/-10 mm, and the requirement of the current full-automatic washing machine on the accurate control of the liquid level can be met.
And 5: and (3) starting timing by a timer, judging whether the continuous time for the water level to reach the overflow protection water level exceeds 5 minutes, if so, performing the step 6, and if not, continuing the judging process of the step.
Since the detected water level continuously exceeds the overflow protection water level within 5 minutes, the fact that the real water level of the washing machine exceeds the overflow protection water level can be basically determined, and misjudgment caused by reasons such as splashing and the like is avoided. The continuous timing judging mode is more accurate than the general times accumulating judging mode, the influence of the judging error of the washing machine on the user is avoided, and the washing quality and the working efficiency of the washing machine are improved.
Step 6: the washing machine starts the alarm, and the alarm lasts for 10 minutes.
Further, the alarm in this embodiment includes a buzzer sound and a digital tube flashing. Specifically, the buzzer buzzes for 10 seconds every 2 minutes, and the buzzing frequency is 0.5 seconds ON and 0.5 seconds OFF; the frequency of the charactron flash was 0.5 seconds ON, 0.5 seconds OFF.
And 7: the washing machine is automatically powered off and shut down.
The alarm process lasts for a certain time, so that the user can be reminded to take measures in time, and if the user fails to operate within the specified time, the washing machine is automatically powered off and shut down, so that the waste of water resources and the potential safety hazard of the washing machine are reduced.
Furthermore, in the invention, the water level in the washing machine does not rise beyond the overflow opening of the washing machine within the sum of the continuous time in the step 5 and the alarm time in the step 6, and the design effectively prevents the overflow and flooding phenomena when the water level rises beyond the overflow opening in the judging and alarming processes. Specifically, the overflow protection water level of the embodiment is arranged at 30 cm below the overflow opening of the washing machine, namely, the rising value of the water level of the washing machine is not more than 30 cm within 15 minutes of the step 5 and the step 6, so that the use safety of the washing machine is effectively guaranteed.
Example two
This embodiment proposes a second preferred overflow protection method for a washing machine, which is substantially the same as the overflow protection method described in the first embodiment, except that: in the embodiment, the protection of the water level in the washing process of the washing machine is taken as an example for explanation, and the setting of the water level of the washing inlet water is increased.
The overflow protection method of the washing machine comprises the following steps:
step 1: the washing machine is powered on and started.
Step 2: setting the overflow protection water level of the washing machine according to the position of an overflow port on the outer barrel of the washing machine, wherein the overflow protection water level is higher than the normal overflow water level of the washing machine; meanwhile, the washing inlet water level of the washing machine is set according to the amount of the clothes.
And step 3: and selecting a water inlet program of the washing machine to start water inlet, and simultaneously resetting the result of the overflow protection timer.
And 4, step 4: and (5) detecting and judging whether the washing machine reaches the set washing inlet water level, if so, performing the step 5, and otherwise, skipping to the step 3.
And 5: the washing machine starts washing.
Step 6: and (5) detecting and judging whether the washing machine reaches the overflow protection water level, if so, performing the step 7, and if not, skipping to the step 5.
And 7: and (5) starting timing by the timer, judging whether the continuous time for the water level to reach the overflow protection water level exceeds 5 minutes, if so, performing the step 8, and otherwise, skipping to the step 5.
And 8: the washing machine starts the alarm, and the alarm lasts for 10 minutes.
And step 9: the washing machine is automatically powered off and shut down.
In the washing process of the washing machine, if the water level is normal, the washing is continued, and if the water level exceeds the maximum overflow water level for a certain time, the alarm is started and the washing machine is automatically shut down; the method effectively prevents flooding events in the washing process, improves the safety of the washing process, avoids the error of frequent overflow or shutdown of the washing machine in the washing process due to more accurate judgment, improves the working efficiency of the washing machine and saves water resources.
EXAMPLE III
This embodiment proposes a third preferred overflow protection method for a washing machine, which is substantially the same as the overflow protection method described in the second embodiment, except that: this embodiment adds the setting of the normal overflow water level.
Step 1: the washing machine is powered on and started.
Step 2: setting the overflow protection water level of the washing machine according to the position of an overflow port on the outer barrel of the washing machine, wherein the overflow protection water level is higher than the normal overflow water level of the washing machine; meanwhile, the washing inlet water level and the normal overflow water level of the washing machine are set according to the amount of the clothes.
And step 3: and selecting a water inlet program of the washing machine to start water inlet, and simultaneously resetting the result of the overflow protection timer.
And 4, step 4: and (5) detecting and judging whether the washing machine reaches the set washing inlet water level, if so, performing the step 5, and otherwise, skipping to the step 3.
And 5: the washing machine starts washing.
Step 6: and (5) detecting and judging whether the washing machine reaches a normal overflow water level, if so, performing the step 7, and if not, skipping to the step 5.
And 7: and (5) starting timing by the timer, judging whether the continuous time for the water level to reach the normal overflow water level exceeds 5 minutes, if so, controlling the water inlet valve to stop water inlet by the host computer, and if not, skipping to the step 5.
And 8: and (4) detecting and judging whether the washing machine reaches the overflow protection water level, if so, performing the step 9, otherwise, returning to the step to continue monitoring.
And step 9: and (3) starting timing by a timer, judging whether the continuous time for the water level to reach the overflow protection water level exceeds 5 minutes, if so, performing the step 10, otherwise, returning to the step for continuous judgment.
Step 10: the washing machine starts the alarm, and the alarm lasts for 10 minutes.
Step 11: the washing machine is automatically powered off and shut down.
The normal overflow water level of the washing machine can protect the water level under the condition that the water inlet valve is effective, but when the silicon controlled rectifier of the water inlet valve is broken down or abnormal, the water inlet process cannot be stopped, the water level can continuously rise, and the overflow protection water level of the washing machine plays a role at the moment, so that the phenomenon that the washing machine is not stopped when water enters or is flooded is effectively prevented.
Example four
The present embodiment provides a full-automatic washing machine, and a control system of the full-automatic washing machine uses the overflow protection method according to any one of the first to third embodiments. Further, the full-automatic washing machine is a pulsator full-automatic washing machine.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. An overflow protection method for a washing machine is characterized by comprising the following steps:
step A: setting an overflow protection water level of the washing machine, wherein the overflow protection water level is higher than a normal overflow water level of the washing machine;
and B: detecting and judging whether the washing machine reaches an overflow protection water level;
and C: judging whether the continuous time of the water level reaching the overflow protection water level exceeds a first set time, if so, starting an alarm of the washing machine, and if not, continuing the judging process;
step D: after the alarm lasts for the second set time, the washing machine is automatically powered off and shut down;
the overflow protection water level is arranged below the overflow port of the washing machine, and the water level in the washing machine does not rise beyond the overflow port of the washing machine within the total time of the first set time and the second set time.
2. An overflow protection method for a washing machine as claimed in claim 1, wherein the overflow protection water level is set 30 cm below the overflow opening of the washing machine.
3. An overflow protecting method for a washing machine as claimed in claim 2, wherein the first setting time in the step C is 5 minutes; the second setting time in the step D is 10 minutes.
4. An overflow protection method for a washing machine as claimed in claim 1, wherein the alarm includes a buzzer sound and a digital tube flash.
5. An overflow protection method for a washing machine as claimed in claim 4, wherein the buzzer buzzes for 10 seconds every 2 minutes, wherein the frequency of buzzing is 0.5 seconds ON, 0.5 seconds OFF; the frequency of the nixie tube flicker is 0.5 second ON and 0.5 second OFF.
6. An overflow protection method for a washing machine according to any one of claims 1-5, wherein the overflow protection method is suitable for a water inlet program, a washing program or a rinsing program of the washing machine.
7. An overflow protection method for a washing machine as claimed in claim 6, wherein the following steps are provided between the step A and the step B:
step A1: detecting and judging whether the washing machine reaches a normal overflow water level;
step A2: judging whether the continuous time for the water level to reach the normal overflow water level exceeds a third set time, if so, controlling the water inlet valve to stop water inlet by the host; if not, the determination process is continued.
8. An overflow protecting method for a washing machine as claimed in claim 7, wherein the third setting time of the step a2 is 5 minutes.
9. A full automatic washing machine characterized in that it uses the overflow protection method of any one of claims 1 to 8.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108593045B (en) * | 2018-04-16 | 2024-03-29 | 九牧厨卫股份有限公司 | Ground overflow detector and related device, system, detection method and valve opening control method |
| CN108950991B (en) * | 2018-08-13 | 2022-11-18 | 青岛海尔洗衣机有限公司 | Rinsing control method and washing machine |
| CN111074483B (en) * | 2018-10-19 | 2023-04-18 | 青岛海尔洗衣机有限公司 | Unbalance detection control method for washing machine |
| CN113123066B (en) * | 2019-12-30 | 2023-09-26 | 重庆海尔滚筒洗衣机有限公司 | Washing machine water inlet control method and device, washing machine and storage medium |
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| CN86206591U (en) * | 1986-12-17 | 1987-11-11 | 上海电器塑料厂 | Water outflow control device for washing machine with upper drain |
| CN1566453A (en) * | 2003-06-30 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Water level control method for washing machine |
| CN101994228A (en) * | 2009-08-26 | 2011-03-30 | 海尔集团公司 | Control method of washing machine |
| CN202000141U (en) * | 2010-12-30 | 2011-10-05 | 无锡小天鹅股份有限公司 | Anti-overflow water containing tub of washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101034198B1 (en) * | 2005-02-02 | 2011-05-12 | 삼성전자주식회사 | Washing machine and method to sense suds thereof |
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| CN86206591U (en) * | 1986-12-17 | 1987-11-11 | 上海电器塑料厂 | Water outflow control device for washing machine with upper drain |
| CN1566453A (en) * | 2003-06-30 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Water level control method for washing machine |
| CN101994228A (en) * | 2009-08-26 | 2011-03-30 | 海尔集团公司 | Control method of washing machine |
| CN202000141U (en) * | 2010-12-30 | 2011-10-05 | 无锡小天鹅股份有限公司 | Anti-overflow water containing tub of washing machine |
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