CN110201924B - Control method for automatic cleaning of range hood - Google Patents
Control method for automatic cleaning of range hood Download PDFInfo
- Publication number
- CN110201924B CN110201924B CN201811044634.1A CN201811044634A CN110201924B CN 110201924 B CN110201924 B CN 110201924B CN 201811044634 A CN201811044634 A CN 201811044634A CN 110201924 B CN110201924 B CN 110201924B
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- water
- wind wheel
- pumping
- water pump
- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 159
- 238000005086 pumping Methods 0.000 claims abstract description 41
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005406 washing Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a control method for automatic cleaning of a range hood, wherein the range hood controls to turn on a heater and turn off a water pump to heat water to a first temperature threshold value, and then controls to turn off the heater and turn on the water pump until the water temperature is reduced to a second temperature threshold value; controlling to start the heater to maintain the water temperature within a third temperature threshold, circularly pumping water by the water pump for at least one time to flush the wind wheel in a first period, and rotating the wind wheel in a second period until the water pumping is finished; controlling to start the heater and continuously pumping water by the water pump to flush the wind wheel running at a high speed, and stopping the water pump to stop working when the water pumping time of the water pump for continuously pumping water reaches a water pumping threshold value or the water temperature rises to a first temperature threshold value again; the wind wheel continuously runs at a strong suction gear until oil stains are thrown off. The invention avoids the problems of inaccurate water inflow and low water outlet temperature, can automatically clean the wind wheel of the range hood, and has higher water outlet temperature, more continuous and stable steam amount and better cleaning effect.
Description
Technical Field
The invention belongs to the technical field of control methods of range hoods, and particularly relates to a control method for automatic cleaning of a range hood.
Background
The automatic cleaning of the range hood is generally to spray the range hood by steam or hot water, the water inflow is generally to control the water inflow time or control the water inflow according to the temperature difference, both of the two modes have some disadvantages, the former is poorer in adaptability to a water path and a heating system, the latter is influenced by the reaction time of a temperature sensor and is easy to lag, the water inflow is unstable or even too much, the steam spraying temperature is low, the steam amount is less, and the cleaning effect is directly influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a control method for automatically cleaning a range hood.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides a control method for automatic cleaning of a range hood, which comprises the following steps: the range hood controls to start the heater and turn off the water pump to heat the water to a first temperature threshold value, and then controls to turn off the heater and turn on the water pump until the water temperature is reduced to a second temperature threshold value; then, controlling to start a heater to maintain the water temperature within a third temperature threshold, circularly pumping water by the water pump for at least one time to wash the wind wheel in a first period, and rotating the wind wheel in a second period until the water pumping is finished; then, controlling to start the heater and continuously pumping water by the water pump to flush the wind wheel running at a high speed, and stopping the water pump to stop working when the water pumping time of the water pump for continuously pumping water reaches a water pumping threshold value or the water temperature rises to a first temperature threshold value again; and finally, the wind wheel continuously operates at a strong suction gear until oil stains are thrown off.
In the above scheme, the control unit turns on the heater to maintain the water temperature within the third temperature threshold, and after the water pump pumps water to flush the wind wheel at least once in a first cycle, the method further includes: when the water temperature exceeds a fourth temperature threshold value, the heater is controlled to be turned off, meanwhile, the duty ratio of the water pump for pumping water is increased, and the water is pumped circularly for at least one time to flush the wind wheel in a second period; and when the water temperature is reduced to be within the third temperature threshold, controlling to start the heater, and circularly pumping water for at least one time to flush the wind wheel by the first cycle of the water pump cycle.
In the scheme, the first period is to control the water pump to be started for 0.3S and stopped for 4.2S.
In the scheme, the second period is to control the water pump to start for 1S and stop for 3.5S.
In the above scheme, the wind wheel rotates to the end of pumping water in a second period, and specifically comprises: the wind wheel rotates at a low gear or a high gear, rotates for 0.4S, stops 12S and pumps water for the same cycle number.
In the scheme, the wind wheel rotates clockwise or anticlockwise or alternatively rotates clockwise and anticlockwise.
In the above scheme, the wind wheel continuously operates at a strong suction gear until oil stains are thrown off, and the method further comprises: the wind wheel continuously runs at a strong suction gear until the wind wheel is dried.
Compared with the prior art, the invention avoids the problems of inaccurate water inflow and low water outlet temperature, can automatically clean the wind wheel of the range hood, and has higher water outlet temperature, more continuous and stable steam amount and better cleaning effect.
Drawings
Fig. 1 is a flowchart of a control method and a control system for automatic cleaning of a range hood according to an embodiment of the present invention;
fig. 2 is a control timing chart of a control method and a control system for automatic cleaning of a range hood according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a control method for automatic cleaning of a range hood, which is realized by the following steps as shown in figure 1:
step 1, waterway establishment confirmation stage: the range hood controls to start the heater and turn off the water pump to heat the water to a first temperature threshold value, and then controls to turn off the heater and turn on the water pump until the water temperature is reduced to a second temperature threshold value;
specifically, the first temperature threshold is 110 ℃ and the second temperature threshold is 108 ℃.
In the process of water temperature rising, when the water temperature is more than 110 ℃, the heater is closed, the water pump is started, when the water temperature is reduced to 108 ℃, the water pump stops working, and then the steam generation stage in the second step is carried out.
In the process, the maximum time for pumping water by the water pump is less than 20S, otherwise, failure reporting is performed to prompt that the waterway is not established successfully.
Step 2, steam generation stage: controlling to start the heater to maintain the water temperature within a third temperature threshold, circularly pumping water by the water pump for at least one time to flush the wind wheel in a first period, and rotating the wind wheel in a second period until the water pumping is finished;
specifically, the water pump circularly pumps water for at least one time to flush the wind wheel in a first period, then when the water temperature exceeds a fourth temperature threshold, the heater is controlled to be turned off, meanwhile, the duty ratio of pumping water by the water pump is increased, and the water pump circularly pumps water for at least one time to flush the wind wheel in a second period; and when the water temperature is reduced to be within the third temperature threshold, controlling to start the heater, and circularly pumping water for at least one time to flush the wind wheel by the first cycle of the water pump cycle.
The wind wheel rotates at a low gear or a high gear, rotates for 0.4S, stops 12S and pumps water for the same cycle number.
The third temperature threshold is 120 ℃.
The fourth temperature threshold is 130 ℃.
The first period is to control the water pump to be started for 0.3S and stopped for 4.2S.
And the second period is to control the water pump to start for 1S and stop for 3.5S.
The wind wheel rotates clockwise or anticlockwise or rotates clockwise and anticlockwise alternately.
For example, the heater is started, the water pump is started for 0.3S and stopped for 4.2S, the water pump is circulated for 50 times by taking 4.5S as a period, when the water temperature exceeds 130 ℃, the heater stops working, meanwhile, the duty ratio of pumping water by the water pump is increased, the working is changed into the working 1S and stopped for 3.5S, the water temperature is reduced to 120 ℃, the heater is recovered, the water pump period is also recovered, in the stage, the fan is started for 0.4S and stopped for 12S by low-grade or high-grade, the water pump is stopped for 50 times, and the third step of hot water washing stage is carried out.
Step 3, hot water washing stage: controlling to start the heater and continuously pumping water by the water pump to flush the wind wheel running at a high speed, and stopping the water pump to stop working when the water pumping time of the water pump for continuously pumping water reaches a water pumping threshold value or the water temperature rises to a first temperature threshold value again;
specifically, after the water pumping time reaches 25S or the water temperature rises again to 110 degrees, the water pump is turned off and stops working
Specifically, the wind wheel continuously runs for 60 seconds at a strong suction gear, and oil stains on the wind wheel are thrown away.
Step 5, a spin-drying stage: the wind wheel continuously runs at a strong suction gear until the wind wheel is dried.
Specifically, the fan continuously operates for 60 seconds in a delayed mode at a strong suction gear, and the wind wheel is dried.
The embodiment of the invention provides a control method for automatic cleaning of a range hood, which is realized by the following steps as shown in figure 2:
step 1, waterway establishment confirmation stage: controlling to turn on a heater and turn off a water pump to heat water to 110 ℃ by the range hood, and controlling to turn off the heater and turn on the water pump until the water temperature is reduced to 108 ℃;
step 2, steam generation stage: the heater is started, the water pump is started for 0.3S and stopped for 4.2S, the water pump is circulated for 50 times by taking 4.5S as a period, when the water temperature exceeds 130 ℃, the heater stops working, meanwhile, the duty ratio of pumping water by the water pump is increased to be changed into working 1S and stopped for 3.5S, the water temperature is reduced to 120 ℃, the heater is recovered to work, the period of the water pump is also recovered to the previous state to work, and in the stage, the fan is started for 0.4S and stopped for 12S by low-grade or high-grade and pumps water for 50 times of period and is finished;
step 3, hot water washing stage: starting the heater, continuously pumping water by the water pump, simultaneously operating the wind wheel at a high speed, and stopping the water pump when the water pumping time reaches 25S or the water temperature rises to 110 ℃ again, and pumping water;
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (5)
1. A control method for automatic cleaning of a range hood is characterized by comprising the following steps:
a water path establishment confirmation stage, wherein after the range hood controls to start the heater and turn off the water pump to heat water to a first temperature threshold, the range hood controls to turn off the heater and turn on the water pump until the water temperature is reduced to a second temperature threshold, wherein the maximum time of water pumping of the water pump is 20S, and if the maximum time of water pumping is exceeded, an obstacle is reported to prompt that the water path establishment is unsuccessful;
entering a steam generation stage after the waterway is successfully established, controlling to start a heater to maintain the water temperature within a third temperature threshold, circularly pumping water by the water pump for at least one time in a first period to flush the wind wheel, and rotating the wind wheel in a second period until the water pumping is finished; when the water temperature exceeds a fourth temperature threshold value, the heater is controlled to be turned off, meanwhile, the duty ratio of the water pump for pumping water is increased, and the water is pumped circularly for at least one time to flush the wind wheel in a second period; when the water temperature is reduced to be within a third temperature threshold value, controlling to start the heater, and circularly pumping water by the water pump in a first period for at least one time to flush the wind wheel;
then entering a hot water flushing stage, controlling to start the heater and continuously pumping water by the water pump to flush the wind wheel running at a high speed, and stopping the water pump to stop working when the water pumping time of the water pump for continuously pumping water reaches a water pumping threshold value or the water temperature rises to a first temperature threshold value again;
finally, in the oil throwing stage, the wind wheel continuously operates for 60 seconds at a strong suction gear until oil stains on the wind wheel are thrown away; and then, in the spin-drying stage, the wind wheel continuously runs for 60S at a strong suction gear, and the wind wheel is dried.
2. The control method for automatically cleaning the range hood according to claim 1, wherein the first period is to control the water pump to be started for 0.3S and stopped for 4.2S.
3. The control method for automatically cleaning the range hood according to claim 2, wherein the second period is controlling the water pump to start for 1S and stop for 3.5S.
4. The automatic cleaning control method for the range hood according to claim 3, wherein the wind wheel rotates for the second period until the end of pumping water, specifically: the wind wheel rotates at a low gear or a high gear, rotates for 0.4S, stops 12S and pumps water for the same cycle number.
5. The automatic cleaning control method for the range hood according to claim 4, wherein the wind wheel rotates clockwise or counterclockwise, or rotates clockwise and counterclockwise alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044634.1A CN110201924B (en) | 2018-09-07 | 2018-09-07 | Control method for automatic cleaning of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044634.1A CN110201924B (en) | 2018-09-07 | 2018-09-07 | Control method for automatic cleaning of range hood |
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| Publication Number | Publication Date |
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| CN110201924A CN110201924A (en) | 2019-09-06 |
| CN110201924B true CN110201924B (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811044634.1A Active CN110201924B (en) | 2018-09-07 | 2018-09-07 | Control method for automatic cleaning of range hood |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128819B (en) * | 2020-08-28 | 2022-10-25 | 华帝股份有限公司 | Control method and system for preventing dry suction of range hood |
| CN114263953B (en) * | 2021-12-29 | 2023-10-20 | 华帝股份有限公司 | Constant steam amount control method for steam cleaning and range hood using same |
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| CN107620997A (en) * | 2017-10-19 | 2018-01-23 | 广东美的厨房电器制造有限公司 | Range hood, the cleaning device of range hood and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2845057B2 (en) * | 1992-10-30 | 1999-01-13 | 松下電器産業株式会社 | Cooker |
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2018
- 2018-09-07 CN CN201811044634.1A patent/CN110201924B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050178378A1 (en) * | 2004-01-05 | 2005-08-18 | John Marshall | Kitchen ventilation degreasing system |
| CN101377319A (en) * | 2008-09-26 | 2009-03-04 | 中山市家用电器总厂有限公司 | Device and method for cleaning fume exhauster |
| CN104415929A (en) * | 2013-08-26 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Range hood, range hood cleaning device and range hood control method |
| CN106196203A (en) * | 2015-04-29 | 2016-12-07 | 华帝股份有限公司 | Automatic cleaning control device and method for range hood |
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| Publication number | Publication date |
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| CN110201924A (en) | 2019-09-06 |
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