CN113907667A - Dish washer blockage detection control method - Google Patents
Dish washer blockage detection control method Download PDFInfo
- Publication number
- CN113907667A CN113907667A CN202010643742.1A CN202010643742A CN113907667A CN 113907667 A CN113907667 A CN 113907667A CN 202010643742 A CN202010643742 A CN 202010643742A CN 113907667 A CN113907667 A CN 113907667A
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- water pump
- pump motor
- seconds
- turning
- cleaning tank
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000005406 washing Methods 0.000 claims abstract description 42
- 238000004140 cleaning Methods 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims abstract description 10
- 238000004851 dishwashing Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4223—Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
Abstract
The invention relates to a method for detecting and controlling the blockage of a dish washing machine, wherein the dish washing machine comprises a cleaning tank, a drain valve communicated with the cleaning tank, a spray arm arranged at the bottom of the cleaning tank, a water pump for driving water in the cleaning tank to circulate between the spray arm and the cleaning tank, and a water pump motor for driving the water pump to work, and is characterized in that: the dishwasher judges whether the washing tank is blocked or not by detecting the running time and running power of the motor of the water pump. Compared with the prior art, the invention has the advantages that: when the washing tank is internally anhydrous, the idling power of the water pump motor is generally about 7w, if the washing tank is internally provided with water, the running power of the water pump motor is 30-100w, the running time of the water pump motor and the running power of the water pump motor are detected within a specific time, so that whether the blockage situation occurs in the washing tank is judged, the detection requirement can be met without adding an additional detection part, and the cost can be saved.
Description
Technical Field
The invention relates to a blockage detection control method of a dish washing machine.
Background
Dishwashers have become an integral part of everyday household use. A typical dishwasher uses a circulation pump to deliver water into a wash tank to wash dishes and cutlery during a wash cycle. The dishwasher may include a rinse tank, a spray arm, a water pump motor, a water inlet valve, and a drain valve. The washing water is pumped into the spraying arm through the water pump motor and the impeller connected with the water pump motor, the spraying arm sprays the washing water to the dishes in the washing tank, and after the washing water falls down, the washing water is pumped into the spraying arm through the water pump motor and the impeller connected with the water pump motor again, so that the dishes in the washing tank are cleaned through the circulation of the washing water. After the wash cycle is completed, the soil exits the sink through the filter, drain valve and drain. However, sometimes the filter may be blocked by dirt, so that the filter is covered, the drain valve is in failure, or the drain pipe is blocked, in this case, the situation that the drain of the cleaning tank is incomplete, the blockage occurs, the drain is incomplete, the generation of peculiar smell is caused, and the using effect of a user is influenced.
However, in the aspect of detecting the blockage of the current commercial dishwasher products, a pressure sensor is mainly adopted for judging, namely, a pressure detection device for detecting the internal pressure of the washing tank is arranged in the washing tank, and if the pressure detected by the pressure detection device is more than the preset pressure after the water drainage is finished, the phenomenon that the water drainage in the washing tank is not complete and the blockage exists is judged. Such as chinese patent publication CN 101822521A. The filter clogging can be judged by other devices, but the cost of the products is increased for the purpose of detection.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a dishwasher blockage detection control method which can complete blockage detection only by running components of the dishwasher and without adding additional components.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a dish washer blocks up detection control method, wherein dish washer includes the washing tank, with the drain valve of washing tank intercommunication, sets up the spray arm in the washing tank bottom, drives the water pump of the water circulation between spray arm and washing tank in the washing tank, the water pump motor of drive water pump work, its characterized in that: the dishwasher detects whether a clogging phenomenon occurs in a washing tub by the steps of:
step 3, judging whether the rotating speed of the water pump motor reaches a set rotating speed, if so, determining that the water pump motor works stably, and turning to step 4, otherwise, turning to step 10;
step 5, starting a first timer, and entering step 6;
step 6, judging whether the first timer is full of t2 seconds, if not, turning to step 10, and if so, turning to step 7;
step 7, judging that no water exists in the cleaning tank, and emptying the operation time of a water pump motor when the cleaning tank is not blocked, and entering step 10;
step 8, resetting the first timer, and entering step 10;
and 9, judging whether the blockage redundancy times are greater than the preset times, if so, judging that the cleaning tank is blocked, outputting a cleaning tank blockage alarm signal, and if not, entering the step 10.
And step 10, after waiting for t5, returning to the step 1.
As an improvement, when the user finishes selecting the cleaning mode and before starting the cleaning operation, the steps 1 to 10 are firstly executed to detect whether the cleaning tank has the blockage phenomenon, if the cleaning tank has no the blockage phenomenon, the cleaning operation is normally executed, and if the cleaning tank has the blockage phenomenon, the cleaning operation is stopped.
And (3) improving the cleaning process, wherein after the cleaning process is finished and the drainage stage is finished, the step 1 to the step 10 are executed again to detect whether the cleaning tank is blocked.
The improvement is that t1 is 12-18 seconds, t3 is 17-23 seconds, t4 is 3-7 seconds, t2 is 2-4 seconds, and t5 is 40-60 milliseconds; the set rotating speed is 180-220 r/min; the set power is 13-18W.
Preferably, the t1 is 15 seconds, the t3 is 20 seconds, the t4 is 5 seconds, the t2 is 3 seconds, and the t5 is 50 milliseconds; the set rotating speed is 200r/min, and the set power is 15W.
Compared with the prior art, the invention has the advantages that: when the washing tank is internally anhydrous, the idling power of the water pump motor is generally about 7w, if the washing tank is internally provided with water, the running power of the water pump motor is 30-100w, the running time of the water pump motor and the running power of the water pump motor are detected within a specific time, so that whether the blockage situation occurs in the washing tank is judged, the detection requirement can be met without adding an additional detection part, and the cost can be saved.
Drawings
FIG. 1 is a schematic view of a dishwasher according to an embodiment of the present invention.
FIG. 2 is a flow chart of a dishwasher clogging detection control method according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The dishwasher as shown in fig. 1 comprises a washing tank 1, a drain valve 2 is arranged below the washing tank, a spray arm 3 is arranged at the lower part of the washing tank 1, a draining area 11 is arranged at the bottom of the washing tank, a draining plate 12 is arranged above the draining area 11, and the draining area is separated from a washing space above the draining plate 12. The water pump 5 that is equipped with the water circulation between spray arm and washing tank of drive washing tank in the waterlogging caused by excessive rainfall district 11, the washing tank below is equipped with the water pump motor 4 of drive water pump 5 work, and the output shaft of water pump motor is located the waterlogging caused by excessive rainfall district after stretching into the washing basin, is connected with the water pump. The water flowing into the draining area is pumped into the spraying arm by the water pump, sprayed upwards from the spraying arm, falls back to the bottom, and flows into the draining area again after passing through the draining plate. In the embodiment, an open water pump is adopted, and the water pump 5 includes an impeller 51 and a guide bracket 52 located outside the impeller 51.
The invention provides a method for detecting and controlling the blockage of a dish-washing machine, which starts a detection program for detecting whether a washing tank is blocked or not before a washing operation is started and a washing program is finished each time after a water drainage stage is finished after a washing mode is selected by a user, and in the embodiment, the dish-washing machine detects whether the washing tank is blocked or not through the following steps:
step 3, judging whether the rotating speed of the water pump motor reaches a set rotating speed, wherein the set rotating speed is 180-220 r/min, preferably 200r/min, if so, determining that the water pump motor works stably, and turning to step 4, otherwise, turning to step 10;
step 5, starting a first timer, and entering step 6;
step 6, judging whether the first timer is full of t2 seconds, wherein t2 is 2-4 seconds, preferably 3 seconds, if not, turning to step 10, and if so, turning to step 7;
step 7, judging that no water exists in the cleaning tank, and emptying the operation time of a water pump motor when the cleaning tank is not blocked, and entering step 10;
step 8, resetting the first timer, and entering step 10;
and 9, judging whether the blockage redundancy times are greater than the preset times, wherein the preset times are 6-10 times, preferably 8 times, if so, judging that the cleaning tank is blocked, outputting a cleaning tank blockage alarm signal, and if not, entering the step 10.
And step 10, returning to the step 1 after waiting for t5 time, wherein t5 is 40-60 milliseconds, preferably 50 milliseconds.
Claims (5)
1. The utility model provides a dish washer blocks up detection control method, wherein dish washer includes the washing tank, with the drain valve of washing tank intercommunication, sets up the spray arm in the washing tank bottom, drives the water pump of the water circulation between spray arm and washing tank in the washing tank, the water pump motor of drive water pump work, its characterized in that: the dishwasher detects whether a clogging phenomenon occurs in a washing tub by the steps of:
step 1, starting a water pump motor, judging whether the running time of the water pump motor reaches t1, if so, turning to step 2, and if not, turning to step 10;
step 2, judging whether the running time of the water pump motor reaches t3, wherein t3 is greater than t1, if so, judging that water exists in the cleaning tank, starting the blockage redundancy frequency, adding 1 to the blockage redundancy frequency, turning to step 9, simultaneously turning off the water pump motor, emptying the running time of the water pump motor, starting a drain valve for t4 seconds, and then turning to step 10; if not, entering step 3;
step 3, judging whether the rotating speed of the water pump motor reaches a set rotating speed, if so, determining that the water pump motor works stably, and turning to step 4, otherwise, turning to step 10;
step 4, reading the running power of the water pump motor, judging whether the running power of the water pump motor is smaller than the set power, and if so, turning to step 5; if not, entering step 8;
step 5, starting a first timer, and entering step 6;
step 6, judging whether the first timer is full of t2 seconds, if not, turning to step 10, and if so, turning to step 7;
step 7, judging that no water exists in the cleaning tank, and emptying the operation time of a water pump motor when the cleaning tank is not blocked, and entering step 10;
step 8, resetting the first timer, and entering step 10;
and 9, judging whether the blockage redundancy times are greater than the preset times, if so, judging that the cleaning tank is blocked, outputting a cleaning tank blockage alarm signal, and if not, entering the step 10.
And step 10, after waiting for t5, returning to the step 1.
2. The dishwasher clogging detection control method according to claim 1, characterized in that: when the user finishes selecting the cleaning mode, before starting the cleaning operation, firstly executing the step 1 to the step 10 to detect whether the cleaning tank has the blockage phenomenon, if the cleaning tank has no blockage phenomenon, normally executing the cleaning operation, and if the cleaning tank has the blockage phenomenon, stopping executing the cleaning operation.
3. The dishwasher clogging detection control method according to claim 1 or 2, characterized in that: and (5) after the cleaning program is finished every time and the drainage stage is finished, the step 1 to the step 10 are executed again to detect whether the cleaning tank is blocked or not.
4. The clogging detecting control method of a dishwasher according to claim 1, characterized in that: the t1 is 12-18 seconds, the t3 is 17-23 seconds, the t4 is 3-7 seconds, the t2 is 2-4 seconds, and the t5 is 40-60 milliseconds; the set rotating speed is 180-220 r/min; the power is set to be 13-18W, and the preset times are 6-10.
5. The dishwasher clogging detection control method according to claim 4, characterized in that: the t1 is 15 seconds, the t3 is 20 seconds, the t4 is 5 seconds, the t2 is 3 seconds, and the t5 is 50 milliseconds; the set rotating speed is 200r/min, the set power is 15W, and the preset times are 8 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010643742.1A CN113907667B (en) | 2020-07-07 | 2020-07-07 | Method for detecting and controlling blockage of dish-washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010643742.1A CN113907667B (en) | 2020-07-07 | 2020-07-07 | Method for detecting and controlling blockage of dish-washing machine |
Publications (2)
| Publication Number | Publication Date |
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| CN113907667A true CN113907667A (en) | 2022-01-11 |
| CN113907667B CN113907667B (en) | 2024-05-14 |
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| CN202010643742.1A Active CN113907667B (en) | 2020-07-07 | 2020-07-07 | Method for detecting and controlling blockage of dish-washing machine |
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| CN109782633A (en) * | 2017-11-10 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of water tank cleaner automatically adds water control method |
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2020
- 2020-07-07 CN CN202010643742.1A patent/CN113907667B/en active Active
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| KR19980050416A (en) * | 1996-12-20 | 1998-09-15 | 배순훈 | How to detect filter clogs in your dishwasher |
| KR19990011742A (en) * | 1997-07-25 | 1999-02-18 | 윤종용 | How to detect filter clogging in the washing machine |
| US20030049134A1 (en) * | 1999-11-19 | 2003-03-13 | Harold Leighton | Sump pump monitoring and control system |
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| Publication number | Publication date |
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| CN113907667B (en) | 2024-05-14 |
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