CN111012159B - Steam cooking equipment and automatic cleaning method for oven cavity thereof - Google Patents

Steam cooking equipment and automatic cleaning method for oven cavity thereof Download PDF

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Publication number
CN111012159B
CN111012159B CN201911234962.2A CN201911234962A CN111012159B CN 111012159 B CN111012159 B CN 111012159B CN 201911234962 A CN201911234962 A CN 201911234962A CN 111012159 B CN111012159 B CN 111012159B
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stop
circulating fan
drying
furnace chamber
time
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CN111012159A (en
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林善桃
王巍吉
潘叶江
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Vatti Co Ltd
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Vatti Co Ltd
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/32—Time-controlled igniting mechanisms or alarm devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Electric Ovens (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention belongs to the technical field of steam cooking equipment, and particularly relates to steam cooking equipment and a self-cleaning method for an oven cavity thereof, wherein the self-cleaning method comprises the following steps: starting an automatic cleaning function of the steam cooking equipment; controlling the temperature in the furnace chamber, starting a circulating fan, and conveying steam into the furnace chamber to automatically clean the furnace chamber; after the automatic cleaning is finished, stopping heating the furnace chamber, and discharging the wastewater in the furnace chamber; after the drainage is finished, the circulating fan stops, and the accumulated stopping time t of the circulating fan is recorded at the same timeStopWhen t isStopSatisfies the following conditions: t is tStop≤tStopJudging whether the door body is opened or not; if not, tStopZero clearing, and performing S5; if yes, suspending the automatic cleaning program until t is detected that the door body is closedStopClearing and then performing S5; heating the furnace chamber again, and starting a circulating fan to dry the furnace chamber; and (4) completely opening the door body and shutting down the equipment. The steam cooking device can solve the problem that the oven cavity of the existing steam cooking device is difficult to clean.

Description

Steam cooking equipment and automatic cleaning method for oven cavity thereof
Technical Field
The invention belongs to the technical field of steam cooking equipment, and particularly relates to steam cooking equipment and an automatic cleaning method for an oven cavity of the steam cooking equipment.
Background
With the development of society, the living standard of people is continuously improved, people put forward higher dining requirements on food diversification and nutrition, and a kitchen becomes one of the living spaces with the highest utilization rate of people. The improvement of the quality of life, many families continue to use traditional naked light cooking modes such as stir-fry, fried and select diversified cooking modes such as more healthy steaming, boiling, stewing, tender roast, baking simultaneously. Multifunctional, safe and healthy steam cooking equipment, such as an electric steamer, a steaming and baking all-in-one machine and the like, become objects of choice for many families. When the steam cooking device cooks, the cavity is inevitably contaminated with food juice and is difficult to clean.
Disclosure of Invention
In view of this, in order to solve the problem that the oven cavity of the existing steam cooking apparatus is difficult to clean, the present invention provides an automatic oven cavity cleaning method for a steam cooking apparatus.
Another object of the present invention is to provide a steam cooking apparatus capable of automatically cleaning a cavity.
The invention adopts the following technical scheme that the automatic cleaning method for the furnace chamber of the steam cooking equipment comprises the following steps:
s1, starting the automatic cleaning function of the steam cooking equipment;
s2, controlling the temperature in the oven cavity of the steam cooking equipment, starting a circulating fan, and conveying steam into the oven cavity to automatically clean the oven cavity;
s3, after the automatic cleaning is finished, stopping heating the oven cavity, and discharging the waste water in the oven cavity out of the steam cooking equipment;
after S4 and S3 are finished, the circulating fan stops, and the accumulated stop time t of the circulating fan is recordedStopWhen the circulating fan accumulates the stop time tStopSatisfies the following conditions: t is tStop≤tStop' hour, judge whether the door is opened, where tStop' is the cumulative stop time threshold of the circulating fan;
if yes, suspending the automatic cleaning program until the accumulated stop time t of the circulating fan is detected to be closedStopClearing and then performing S5;
if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5;
s5, heating the furnace chamber again, and starting a circulating fan to dry the furnace chamber;
and S6, after drying, completely opening the door body, and shutting down the steam cooking equipment.
Preferably, S2 further includes the steps of:
s21, controlling the first cleaning temperature T in the furnace cavity1In the range of the first cleaning temperature threshold value, starting the circulating fan, conveying steam into the furnace chamber, and starting to record the accumulated cleaning time tCleaning of；
S22, judging the accumulated cleaning time tCleaning ofWhether or not: t is tCleaning of≥tCleaning of', where tCleaning of' is a cumulative wash time threshold; if not, returning to S21; if yes, go to S23;
s23, stopping steam delivery to the oven cavity, stopping heating the oven cavity, and accumulating the cleaning time tCleaning ofThe zero clearing is performed, and the automatic cleaning ends, and the process proceeds to S3.
Preferably, S3 further includes the steps of:
s31, after the automatic cleaning is finished, discharging the waste water in the oven cavity out of the steam cooking equipment, and starting to record the accumulated water discharging time tDraining water；
S32, judging the accumulated drainage time tDraining waterWhether or not: t is tDraining water≥tDraining water', where tDraining water' is a cumulative drainage time threshold; if not, returning to S31; if yes, go to S33;
s33, stopping water drainage and accumulating the drainage time tDraining waterZero clearing is performed, and water discharge is completed, and the process proceeds to S4.
Preferably, S4 further includes the steps of:
after S41 and S3 are finished, the second cleaning temperature T in the furnace cavity is detected2And determining T2Whether the following conditions are met: t is2＜T2', wherein, T2' a second washing temperature threshold of the furnace chamber after the wastewater is discharged; if not, the circulating fan continuously works; if yes, go to S42;
s42, stopping the circulating fan, and simultaneously recording the accumulated stopping time t of the circulating fanStopWhen the circulating fan accumulates the stop time tStopSatisfies the following conditions: t is tStop≤tStop' hour, judge whether the door is opened, where tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5; if yes, go to S43;
s43, detecting whether the door body is closed in real time; if yes, the accumulated stop time t of the circulating fan is determinedStopAfter zero clearing, S5 is carried out; if not, S42 is repeated.
Preferably, S5 further includes the steps of:
s51, heating the furnace chamber again, starting the circulating fan, and controlling the drying temperature T in the furnace chamberDrying by bakingWithin the range of the drying temperature threshold value, and simultaneously, the cumulative drying time t is recordedDrying by baking；
S52, judging the accumulated drying time tDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking', wherein, tDrying by baking' is a cumulative drying time threshold; if yes, stopping heating the furnace chamber, stopping the circulating fan and accumulating the drying time tDrying by bakingClearing, finishing drying and carrying out S6; if not, S51 is repeated.
Preferably, S52 further includes the steps of:
s52, judging the accumulated drying time tDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking', wherein, tDrying by baking' is a cumulative drying time threshold; if yes, stopping heating the furnace chamber, and performing S521; if not, go to S51;
s521, controlling the door body to be opened until the door body and the door frame form an included angle of 10-20 degrees, and closing the circulating fan;
s522, detecting the third cleaning temperature T in the furnace cavity after the circulating fan is closed in real time3Judgment of T3Whether or not: t is3≤T3', wherein T3' is a third cleaning temperature threshold after the circulation fan is turned off; if yes, accumulating the drying time tDrying by bakingClearing, finishing drying and carrying out S6; if not, proceed to S521.
Preferably, the door body forms an included angle of 15 degrees with the door frame.
Preferably, S42 further includes the steps of:
s42, stopping the circulation fan, starting the buzzer, and recording the accumulated stop time t of the circulation fanStopWhen the circulating fan accumulates the stop time tStopSatisfies the following conditions: t is tStop≤tStop' hour, judge whether the door is opened, where tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5; if it isIf yes, S43 is performed.
The invention also provides steam cooking equipment which comprises a heating assembly for heating the oven cavity, a drainage assembly for draining water, a temperature detection element for detecting the temperature of the oven cavity, a timer for recording time and a driving assembly for driving the door body to be opened;
the heating assembly, the water discharging assembly, the temperature detecting element, the timer and the driving assembly are electrically connected with a controller of the steam cooking equipment.
Preferably, the heating assembly comprises a first heater positioned at the top of the oven cavity, a second heater positioned at the back of the oven cavity, and a third heater positioned at the bottom of the oven cavity;
the first heater, the second heater and the third heater are respectively electrically connected with the controller;
the drainage component comprises a drainage pump, a drainage valve and a water delivery pipe; one end of the water conveying pipe is communicated with the furnace chamber, the other end of the water conveying pipe is communicated with the wastewater tank, the draining pump and the draining valve are both arranged on the water conveying pipe, and the draining pump and the draining valve are both electrically connected with the controller.
Compared with the prior art, the automatic cleaning method for the furnace chamber has the beneficial effects that by adopting the scheme, the automatic cleaning method for the furnace chamber has the following advantages:
the process of the automatic cleaning method for the oven cavity is that a user firstly starts the automatic cleaning function of the steam cooking equipment;
secondly, the steam cooking equipment controls the temperature in the furnace chamber, starts the circulating fan and conveys steam to the furnace chamber, at the moment, the steam is still in a steam state in the furnace chamber and is high-temperature steam because the temperature in the furnace chamber is higher, and the part of steam circulates in the furnace chamber under the action of the circulating fan, so that the furnace chamber can be comprehensively and automatically cleaned, further general microorganisms such as bacteria, fungi and the like are killed, and spore killing effects are also achieved; however, temperature difference still exists in the furnace chamber, so that a small amount of steam is inevitably condensed into water drops in the furnace chamber, and the water drops can flush the wall of the furnace chamber, so that the automatic cleaning of the furnace chamber is realized;
after the automatic cleaning is finished, a small amount of condensed water is collected in a chassis of the oven cavity, and at the moment, the part of waste water needs to be drained out of the oven cavity, so that the oven cavity is stopped from being heated, and the waste water in the oven cavity is drained out of the steam cooking equipment;
thirdly, because some stains in the furnace cavity are relatively hard and may need to be manually cleaned in depth by a user, after the drainage is finished, the circulating fan is stopped, and the accumulated stopping time t of the circulating fan is recordedStopAnd when the accumulated stop time t of the circulating fanStopSatisfies the following conditions: t is tStop≤tStopIf yes, judging whether the door body is opened or not to determine whether the user deeply cleans the steam cooking equipment or not; if not, namely the user does not deeply clean the steam cooking equipment, the accumulated stop time t of the circulating fan isStopClearing and drying; if yes, namely, the user opens the door body and manually and deeply cleans the furnace chamber, so that the automatic cleaning program of the steam cooking equipment is suspended at the moment until the door body is detected to be closed, namely, the deep cleaning of the user is finished, and the accumulated stop time t of the circulating fan is shortenedStopClearing and drying;
the oven chamber is dried immediately after being cleaned, so that the cleaning and the drying are mutually matched to effectively kill common bacteria, fungi and other microorganisms; the drying process is specifically to heat the furnace chamber again, and the circulating fan is started to dry the furnace chamber, so that the problems of bacteria breeding and the like caused by water stain in the furnace chamber can be effectively avoided;
and finally, after the oven cavity is dried, the door body is completely opened, so that the oven cavity can be kept ventilated, residual food smell is dispersed, and meanwhile, the steam cooking equipment is shut down.
That is, the automatic oven cavity cleaning method of the invention can solve the problem that the oven cavity of the existing steam cooking equipment is difficult to clean.
Compared with the prior art, the steam cooking equipment adopting the scheme has the beneficial effects that:
because the steam cooking equipment adopts the self-cleaning method of the oven cavity, the steam cooking equipment can also solve the problem that the oven cavity of the existing steam cooking equipment is difficult to clean;
the specific process is as follows: after the automatic cleaning function of the steam cooking equipment is started, the controller controls the heating assembly to work to heat the furnace chamber, the temperature detection element monitors the temperature of the furnace chamber in real time, and when the temperature of the furnace chamber is detected to be higher, the controller controls the heating assembly to stop working; when the temperature of the furnace chamber is detected to be lower, the controller controls the heating assembly to continue working so as to maintain the furnace chamber within a certain temperature range; simultaneously starting a circulating fan and conveying steam into the furnace chamber to automatically clean the furnace chamber;
after the automatic cleaning is finished, the controller controls the heating assembly to stop working, controls the drainage assembly to work, and discharges the waste water in the oven cavity out of the steam cooking equipment;
because the dirt in the furnace cavity can be relatively hard, some of the furnace cavities still need to be cleaned manually and deeply, so that after the drainage is finished, the circulating fan stops, the controller controls the timer to work at the same time, and the accumulated stop time t of the circulating fan is recordedStopAnd the controller detects the accumulated stop time t of the circulating fanStopSatisfies the following conditions: t is tStop≤tStopWhen the door is opened, judging whether the door is opened or not, wherein tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopClearing and drying; if yes, suspending the automatic cleaning program until t is detected that the door body is closedStopClearing and drying;
in the drying process, the controller controls the heating assembly to be started again to heat the furnace chamber, and the circulating fan is started to dry the furnace chamber;
finally, after drying, the controller controls the driving assembly to drive the door body to be completely opened, so that a good ventilation effect can be achieved, and meanwhile, the steam cooking equipment is closed.
Drawings
Fig. 1 is a first flowchart of a method for automatically cleaning an oven cavity of a steam cooking apparatus according to embodiment 1 of the present invention;
fig. 2 is a second flowchart of a method for automatically cleaning an oven cavity of a steam cooking apparatus according to embodiment 1 of the present invention;
fig. 3 is a third flowchart of an automatic oven cavity cleaning method for a steam cooking apparatus according to embodiment 1 of the present invention;
fig. 4 is a sectional view of a steam cooking apparatus according to embodiment 2 of the present invention;
in the figure: 1. a heating assembly; 11. a first heater; 12. a second heater; 13. and a third heater.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following 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.
Example 1
The present embodiment provides a method for automatically cleaning an oven cavity of a steam cooking apparatus, as shown in fig. 1, the method comprising the steps of:
s1, starting the automatic cleaning function of the steam cooking equipment;
s2, controlling the temperature in the oven cavity of the steam cooking equipment, starting a circulating fan, and conveying steam into the oven cavity to automatically clean the oven cavity;
s3, after the automatic cleaning is finished, stopping heating the oven cavity, and discharging the waste water in the oven cavity out of the steam cooking equipment;
after S4 and S3 are finished, the circulating fan is closed, and meanwhile, the accumulated stop time t of the circulating fan is recordedStopWhen the circulating fan accumulates the stop time tStopSatisfies the following conditions: t is tStop≤tStop' hour, judge whether the door is opened, where tStop' is the cumulative stop time threshold of the circulating fan;
if yes, suspending the automatic cleaning program until t is detected after the door body is closedStopClearing and then performing S5;
if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5;
s5, heating the furnace chamber again, and starting a circulating fan to dry the furnace chamber;
and S6, after the drying is finished, the door body is completely opened, and the steam cooking equipment is shut down.
The process of the automatic oven cavity cleaning method of the embodiment is that a user firstly starts the automatic cleaning function of the steam cooking equipment;
secondly, the steam cooking equipment controls the temperature in the furnace chamber, starts the circulating fan and conveys steam to the furnace chamber, at the moment, the steam is still in a steam state in the furnace chamber and is high-temperature steam because the temperature in the furnace chamber is higher, and the part of steam circulates in the furnace chamber under the action of the circulating fan, so that the furnace chamber can be comprehensively and automatically cleaned, further general microorganisms such as bacteria, fungi and the like are killed, and spore killing effects are also achieved; however, temperature difference still exists in the furnace chamber, so that a small amount of steam is inevitably condensed into water drops in the furnace chamber, and the water drops can flush the wall of the furnace chamber, so that the automatic cleaning of the furnace chamber is realized;
after the automatic cleaning is finished, a small amount of condensed water is collected in a chassis of the oven cavity, and at the moment, the part of waste water needs to be drained out of the oven cavity, so that the oven cavity is stopped from being heated, and the waste water in the oven cavity is drained out of the steam cooking equipment;
thirdly, because some stains in the furnace cavity are relatively hard and may need to be manually cleaned in depth by a user, after the drainage is finished, the circulating fan is stopped, and the accumulated stopping time t of the circulating fan is recordedStopAnd when the accumulated stop time t of the circulating fanStopSatisfies the following conditions: t is tStop≤tStopIf yes, judging whether the door body is opened or not to determine whether the user deeply cleans the steam cooking equipment or not; if not, namely the user does not deeply clean the steam cooking equipment, the accumulated stop time t of the circulating fan isStopClearing and drying; if yes, the user opens the door body to manually and deeply clean the furnace chamber, so that the automatic cleaning process of the steam cooking equipment is realized at the momentThe sequence is suspended until the door body is detected to be closed, namely the deep cleaning of a user is finished, so that the accumulated stop time t of the circulating fan isStopClearing and drying;
the oven chamber is dried immediately after being cleaned, so that the cleaning and the drying are mutually matched to effectively kill common bacteria, fungi and other microorganisms; the drying process is specifically to heat the furnace chamber again, and the circulating fan is started to dry the furnace chamber, so that the problems of bacteria breeding and the like caused by water stain in the furnace chamber can be effectively avoided;
and finally, after the oven cavity is dried, the door body is completely opened, so that the oven cavity can be kept ventilated, residual food smell is removed, and meanwhile, the steam cooking equipment is shut down.
That is, the problem that the oven cavity of the existing steam cooking apparatus is difficult to clean can be solved by the automatic oven cavity cleaning method of the present embodiment.
In the present embodiment, the cumulative stop time threshold t of the circulation fanStop' the time preset in the steam cooking device in advance, for example, may be 2min, 3min or 5min, and this may be preset in the steam cooking device in advance according to actual needs.
In a specific embodiment, as shown in fig. 2 and 3, S2 further includes the following steps:
s21, controlling the first cleaning temperature T in the furnace cavity1In the range of the first cleaning temperature threshold value, starting the circulating fan, conveying steam into the furnace chamber, and starting to record the accumulated cleaning time tCleaning of；
S22, judging the accumulated cleaning time tCleaning ofWhether or not: t is tCleaning of≥tCleaning of', where tCleaning of' is a cumulative wash time threshold; if not, returning to S21; if yes, go to S23;
s23, stopping steam delivery to the oven cavity, stopping heating the oven cavity, and accumulating the cleaning time tCleaning ofThe zero clearing is performed, and the automatic cleaning ends, and the process proceeds to S3.
In this embodiment, the first cleaning temperature threshold range is a temperature range preset in the steam cooking device in advance, and may be, for example, 105 ℃ to 115 ℃, in order to ensure that the steam still maintains a steam state in the cavity and belongs to high-temperature steam, so that a good sterilization effect can be achieved.
In the present embodiment, the accumulated cleaning time threshold tCleaning of' is also a time value preset in advance, which may be, for example, 10min, 15min or 20min, which may be determined specifically according to the actual situation.
The specific process comprises the steps of controlling the first cleaning temperature T in the oven cavity after starting the automatic cleaning function of the steam cooking equipment1In the first cleaning temperature threshold range (105-115 ℃), starting the circulating fan to convey steam into the furnace chamber, and reheating the steam in the furnace chamber to obtain high-temperature steam, so that the furnace chamber can be sterilized; and begins to record the accumulated cleaning time tCleaning of；
If the process is not limited in time, steam is always delivered into the oven cavity, the steam cooking device is always in an automatic cleaning stage, and therefore when the steam is delivered into the oven cavity, the accumulated cleaning time t is recordedCleaning ofAnd judging the accumulated cleaning time tCleaning ofWhether or not: t is tCleaning of≥tCleaning ofIf not, the furnace chamber needs to be continuously cleaned, namely, steam is continuously conveyed into the furnace chamber; if yes, the automatic cleaning can be finished, namely the steam is stopped being conveyed into the furnace chamber, the furnace chamber is stopped being heated, and the cleaning time t is accumulatedCleaning ofAnd (5) zero clearing is carried out, the automatic cleaning is finished, and the next step, namely the drainage stage, is carried out.
In the embodiment, since a small amount of steam condenses in the cavity and condenses into water droplets, which flow along the wall of the cavity to the bottom plate of the cavity, the wastewater in the bottom plate needs to be drained out of the cavity, so the embodiment further includes a step of draining, i.e., S3, S3, as shown in fig. 2 and 3:
s31, after the automatic cleaning is finished, discharging the waste water in the oven cavity out of the steam cooking equipment, and starting to record the accumulated water discharging time tDraining water；
S32, judging the accumulated drainage time tDraining waterWhether or not: t is tDraining water≥tDraining water', where tDraining water' is a cumulative drainage time threshold; if not, returning to S31; if yes, go to S33;
s33, stopping water drainage and accumulating the drainage time tDraining waterZero clearing is performed, and water discharge is completed, and the process proceeds to S4.
In the present embodiment, the drainage time threshold t is accumulatedDraining water' to be previously provided in the steam cooking apparatus, since the steam cooking apparatus is always in the draining state if there is no time limit for draining, even if the waste water in the cavity is drained, the steam cooking apparatus is still in the draining state unless the user automatically turns off the steam cooking apparatus, which is to be avoided, in the present embodiment, when the waste water in the cavity is drained out of the steam cooking apparatus, the recording of the accumulated draining time t is startedDraining waterAnd by judging the accumulated drainage time tDraining waterWhether or not: t is tDraining water≥tDraining water', to enable the steam cooking apparatus to automatically go to the next step, instead of being in the drain phase all the time; specifically, if the drainage time t is accumulatedDraining waterDoes not satisfy: t is tDraining water≥tDraining water' so, it is returned to S31, indicating that the wastewater in the furnace chamber may not be discharged completely; and if the drainage time t is accumulatedDraining waterSatisfies the following conditions: t is tDraining water≥tDraining water' if the wastewater in the furnace chamber is completely discharged, the process proceeds to the next step, i.e., S33, the water discharge is stopped, and the water discharge time t is accumulatedDraining waterZero clearing is performed, and water discharge is completed, and the process proceeds to S4.
In a specific embodiment, as shown in fig. 2 and 3, S4 further includes the following steps:
after S41 and S3 are finished, the second cleaning temperature T in the furnace cavity is detected2And determining T2Whether the following conditions are met: t is2＜T2', wherein, T2' a second washing temperature threshold of the furnace chamber after the wastewater is discharged; if not, the circulating fan continuously works; if yes, go to S42;
s42, stopping the circulating fan, and recording the accumulated stopping time t of the circulating fanStopWhen the circulating fan accumulates the stop time tStopSatisfies the following conditions: t is tStop≤tStop' hour, judge whether the door is opened, where tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5; if yes, go to S43;
s43, detecting whether the door body is closed in real time; if yes, the accumulated stop time t of the circulating fan is determinedStopAfter zero clearing, S5 is carried out; if not, S42 is repeated.
In the present embodiment, the cumulative stop time threshold t of the circulation fanStop' is a time value preset in the steam cooking apparatus in advance, which may be 3min, may be 4min, etc.;
in this embodiment, the second cleaning temperature threshold T of the furnace chamber after the waste water is discharged2' is a temperature value preset in advance in the steam cooking apparatus, which may be 80 ℃, may be 70 ℃, etc.;
if after the drainage, not detect the interior temperature of furnace chamber, the user just directly carries out degree of depth to the furnace chamber and washs, probably can appear, because the problem of scalding user of the too high temperature in the furnace chamber, so in this embodiment, after the drainage, detect this moment the second in the furnace chamber and wash temperature T2And determining T2Whether the following conditions are met: t is2＜T2'; if not, the temperature in the furnace chamber is over high, and if the door body is opened at the moment, the risk of being scalded can occur when a user deeply cleans the furnace chamber, so that the operation of the circulating fan needs to be maintained at the moment, and the temperature in the furnace chamber is further reduced; if yes, the fact that the risk of being scalded does not occur if the user opens the door body for deep cleaning at the moment is shown, and then S42 is carried out;
however, when S42 is performed, there are two cases, one is that the user opens the door body to deeply wash the cavity, and the other is that the user thinks that deep washing of the cavity is not necessary, which leads to the automatic operation of the present embodiment if the second case is not excludedThe cleaning process is stopped at S42, which is obviously not reasonable, so in S42 of this embodiment, the circulator blower is stopped, and the cumulative stop time t of the circulator blower is recordedStopAnd when the circulating fan accumulates the stop time tStopSatisfies the following conditions: t is tStop≤tStopJudging whether the door body is opened or not; if not, the situation shows that the user thinks that the furnace chamber does not need deep cleaning, and the accumulated stop time t of the circulating fan is at the momentStopZero clearing, and performing S5; if yes, the user considers that deep cleaning is needed to be carried out on the oven cavity, so that the user can open the door body to manually and automatically clean the oven cavity, namely S43 is carried out;
when a user carries out manual deep cleaning, whether the door body is closed or not needs to be detected in real time; if yes, the manual deep cleaning of the user is finished, the automatic cleaning program is operated immediately, and the accumulative stop time t of the circulating fan isStopAfter zero clearing, S5 is carried out; if not, it indicates that the user is still performing the manual deep cleaning, and in this case, S42 is repeated.
In a specific embodiment, as shown in fig. 2 and 3, S5 further includes the following steps:
s51, heating the furnace chamber again, starting the circulating fan, and controlling the drying temperature T in the furnace chamberDrying by bakingWithin the range of the drying temperature threshold value, and simultaneously, the cumulative drying time t is recordedDrying by baking；
S52, judging the accumulated drying time tDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking', wherein, tDrying by baking' is a cumulative drying time threshold; if yes, stopping heating the furnace chamber, stopping the circulating fan and accumulating the drying time tDrying by bakingClearing, finishing drying and carrying out S6; if not, S51 is repeated.
In this embodiment, the drying temperature threshold range is preset in the steam cooking device in advance, and may be 115 ℃ to 130 ℃, or may be a certain determined temperature value, for example, 125 ℃;
cumulative drying time threshold tDrying by baking' also preset in advance in steam cookingThe time value in the device can be 5min or 7 min.
After deep cleaning or automatic cleaning, inevitable water stain can be stored in the furnace chamber, if the water stain is not removed, bacteria can possibly grow, so that the furnace after cleaning is dried, specifically, S51 heats the furnace chamber again, the circulating fan is started, and the drying temperature T in the furnace chamber is controlledDrying by bakingWithin the range of the drying temperature threshold value, and simultaneously, the cumulative drying time t is recordedDrying by baking(ii) a In the embodiment, the drying temperature threshold range is usually high temperature of 125 ℃, so that water stains in the oven cavity can be evaporated completely, and a further sterilization effect can be achieved;
in addition, if the cumulative drying time t is not recordedDrying by bakingIf the drying function needs to be manually and automatically turned off, or the steam cooking device is always in a high-temperature drying state, in this embodiment, the accumulated drying time t is recordedDrying by bakingAnd also judging the accumulated drying time tDrying by bakingWhether or not: t is tDrying by baking≥tDrying by bakingIf yes, the water stain in the furnace chamber is completely evaporated, the drying step can be finished, at the moment, the heating of the furnace chamber is stopped, the circulating fan is stopped, the drying is finished, and the drying time t is accumulatedDrying by bakingClearing to zero, and performing S6; if not, it indicates that the water stain in the oven cavity may not be completely evaporated, so S51 needs to be repeated to continue drying.
In a specific embodiment, as shown in fig. 3, S52 further includes the following steps:
s52, judging the accumulated drying time tDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking', wherein, tDrying by baking' is a cumulative drying time threshold; if yes, stopping heating the furnace chamber, and accumulating the drying time tDrying by bakingClearing to zero, and performing S521; if not, go to S51;
s521, controlling the door body to be opened until the door body and the door frame form an included angle of 10-20 degrees, and closing the circulating fan;
s522, detecting the closing of the circulating fan in real timeThird cleaning temperature T in the rear furnace chamber3Judgment of T3Whether or not: t is3≤T3', wherein T3' is a third cleaning temperature threshold after the circulation fan is turned off; if yes, the accumulated drying time tDrying by bakingClearing, finishing drying and carrying out S6; if not, proceed to S521.
In this embodiment, the third cleaning temperature threshold is a temperature value preset in the steam cooking device in advance, and may be, for example, 50 ℃, 60 ℃, or 70 ℃;
in this embodiment, after the drying is finished, the drying time t is accumulatedDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking' in the meantime, if the door body is directly controlled to be completely opened, there is a possibility that a user, especially a small child, is scalded, so that in the present embodiment, when the drying time t is accumulatedDrying by bakingWhether or not: t is tDrying by baking≥tDrying by bakingAt this time, the heating of the oven chamber is stopped and the drying time t is accumulatedDrying by bakingWhen resetting, controlling the door body to open until the door body and the door frame form an included angle of 10-20 degrees, and closing the circulating fan; therefore, the ventilation of air can be realized, and hands of children can be prevented from extending into the oven cavity;
and the third cleaning temperature T in the furnace cavity after the circulating fan is closed is detected in real time3Judgment of T3Whether or not: t is3≤T3'; if yes, the temperature in the furnace cavity is reduced to the degree that the user can not be scalded, and the cumulative drying time t is carried out at the momentDrying by bakingClearing, finishing drying and carrying out S6; if not, S521 is performed to explain that the temperature in the furnace chamber is still high and there is still a risk of scalding the user.
In a specific embodiment, the door body forms an included angle of 15 degrees with the door frame.
In a specific embodiment, as shown in fig. 2 and 3, S42 further includes the following steps:
s42, stopping the circulating fan, starting the buzzer, and recording the accumulated stop time t of the circulating fanStopWhen the circulating fanCumulative stop time tStopSatisfies the following conditions: t is tStop≤tStop' hour, judge whether the door is opened, where tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5; if yes, S43 is performed. The buzzer has the function of reminding a user.
Example 2
A steam cooking device comprises a heating assembly 1 for heating a furnace chamber, a drainage assembly for draining water, a temperature detection element for detecting the temperature of the furnace chamber, a timer for recording time and a driving assembly for driving a door body to be opened;
the heating assembly 1, the water drainage assembly, the temperature detection element, the timer and the driving assembly are all electrically connected with a controller of the steam cooking equipment.
Since embodiment 2 adopts the self-cleaning method of the cavity of embodiment 1, the steam cooking apparatus of the present embodiment can also solve the problem that the cavity of the existing steam cooking apparatus is difficult to clean;
after the automatic cleaning function of the steam cooking equipment is started, the controller controls the heating assembly 1 to work to heat the oven cavity, the temperature detection element monitors the temperature of the oven cavity in real time, and when the temperature of the oven cavity is detected to be higher, the controller controls the heating assembly 1 to stop working; when the temperature of the furnace chamber is detected to be lower, the controller controls the heating assembly 1 to continue working so as to maintain the furnace chamber within a certain temperature range; simultaneously starting a circulating fan and conveying steam into the furnace chamber to automatically clean the furnace chamber;
after the automatic cleaning is finished, the controller controls the heating assembly 1 to stop working, controls the drainage assembly to work, and discharges the waste water in the oven cavity out of the steam cooking equipment;
because the dirt in the furnace cavity can be relatively hard, some of the furnace cavities still need to be cleaned manually and deeply, so that after the drainage is finished, the circulating fan stops, the controller controls the timer to work at the same time, and the accumulated stop time t of the circulating fan is recordedStopAnd simultaneously the controller detects the accumulated stop time t of the circulating fanStopSatisfies the following conditions: t is tStop≤tStopWhen the door is opened, judging whether the door is opened or not, wherein tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopClearing and drying; if yes, suspending the automatic cleaning program until t is detected that the door body is closedStopClearing and drying;
in the drying process, the controller controls the heating assembly 1 to be started again, the furnace chamber is heated, and the circulating fan is started to dry the furnace chamber;
finally, after drying, the controller controls the driving assembly to drive the door body to be completely opened, so that a good ventilation effect can be achieved, and meanwhile, the steam cooking equipment is closed.
In a specific implementation, the heating assembly 1 comprises a first heater 11 located at the top of the furnace chamber, a second heater 12 located at the back of the furnace chamber, and a third heater 13 located at the bottom of the furnace chamber;
the first heater 11, the second heater 12 and the third heater 13 are respectively electrically connected with the controller;
the drainage component comprises a drainage pump, a drainage valve and a water delivery pipe; one end of the water conveying pipe is communicated with the furnace chamber, the other end of the water conveying pipe is communicated with the wastewater tank, the draining pump and the draining valve are both arranged on the water conveying pipe, and the draining pump and the draining valve are both electrically connected with the controller.
In use, in order to prevent the steam cooking apparatus from having a large total power, when the heating assembly 1 is controlled to heat the cavity, the first heater 11, the second heater 12 and the third heater 13 may be alternately controlled, for example, after the first heater 11 is controlled to heat the cavity for 10s, and after 10s, if the temperature in the cavity still does not reach a certain temperature range, the second heater 12 or/and the third heater 13 is controlled to heat the cavity again.
In the use, when the waste water of furnace chamber was discharged to needs, the controller controlled the drain pump earlier and started, and the drain valve is opened, and the waste water of furnace chamber will be carried the wastewater disposal basin along the raceway like this.
The following describes the automatic oven cavity cleaning method of embodiment 1 in detail with reference to embodiment 2:
s1, starting the automatic cleaning function of the steam cooking equipment;
s21, the controller controls the first heater 11 and the third heater 13 to start to heat the furnace chamber, the temperature detecting element (such as a temperature sensor) detects the temperature in the furnace chamber in real time and sends the detection result to the controller, if the first heater 11 and the third heater 13 start for a period of time (such as after 10S), the first cleaning temperature T in the furnace chamber1Still lower than the first cleaning temperature threshold range, the controller controls the second heater 12 to be activated again to heat the oven cavity until the first cleaning temperature T in the oven cavity1Starting the circulating fan until the temperature is within a first cleaning temperature threshold range (which can be 105-115 ℃), conveying steam into the furnace chamber, and controlling a timer to start recording the accumulated cleaning time tCleaning ofAnd will accumulate the cleaning time tCleaning ofSending to a controller;
s22, the controller judges the accumulated cleaning time tCleaning ofWhether or not: t is tCleaning of≥tCleaning of', where tCleaning of' is cumulative wash time threshold (which may be 15 min); if not, returning to S21; if yes, go to S23;
s23, stopping steam delivery to the oven cavity, controlling the heating assembly to stop working, namely stopping heating the oven cavity, and controlling the timer to record the accumulated cleaning time tCleaning ofThe zero clearing is performed, and the automatic cleaning ends, and the process proceeds to S3.
S31, after the automatic cleaning is finished, the controller controls the drainage pump to start, the drainage valve is opened, the waste water in the oven cavity is drained out of the steam cooking equipment along the water conveying pipe, and the controller controls the timer to start recording the accumulated drainage time t againDraining waterWhile accumulating the drainage time tDraining waterSending to a controller;
s32, the controller receives the accumulated drainage time tDraining waterJudging the accumulated drainage time tDraining waterWhether or not: t is tDraining water≥tDraining water', where tDraining water' is a cumulative drainage time threshold(which may be 30s, for example); if not, returning to S31; if yes, go to S33;
s33, the controller controls the drainage pump to stop working, the drainage valve is closed, namely the drainage is stopped, and the timer is controlled to record the accumulated drainage time tDraining waterZero clearing is performed, and water discharge is completed, and the process proceeds to S4.
After S41 and S3 are finished, the temperature detection element detects the second cleaning temperature T in the furnace cavity at the moment2Sent to the controller, and the controller receives the second cleaning temperature T2Then, T is judged2Whether the following conditions are met: t is2＜T2', wherein, T2' a second washing temperature threshold of the furnace chamber after the wastewater is discharged (e.g., may be 80 ℃); if not, the circulating fan continuously works; if yes, go to S42;
s42, the controller controls the circulating fan to stop and controls the timer to start recording the accumulated stop time t of the circulating fanStopThe timer accumulates the stop time t of the circulating fanStopSending the time to a controller, and receiving the accumulated stop time t of the circulating fan by the controllerStopThen, the accumulative stop time t of the circulating fan is detectedStopSatisfies the following conditions: t is tStop≤tStopWhen the door is opened, judging whether the door is opened or not, wherein tStop' is the cumulative stop time threshold of the circulating fan (which may be 3min for example); if not, the controller controls the timer to record the accumulated stop time t of the circulating fanStopZero clearing, and performing S5; if yes, go to S43;
s43, detecting whether the door body is closed in real time; if yes, the controller controls the timer to record the accumulated stop time t of the circulating fanStopAfter zero clearing, S5 is carried out; if not, S42 is repeated.
S51, controlling the heating component 1 to start again by the controller, heating the furnace chamber, controlling the circulating fan to start, and controlling the drying temperature T in the furnace chamberDrying by bakingWithin the drying temperature threshold range (for example, 115-130 ℃), and simultaneously controlling a timer to start recording the accumulated drying time tDrying by bakingThe timer will record the accumulated drying time tDrying by bakingSending to a controller;
s52, the controller receives the accumulated drying time tDrying by bakingThen, the accumulated drying time t is judgedDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking', wherein, tDrying by baking' is a cumulative drying time threshold (for example, may be 5 min); if yes, the controller controls the heating assembly 1 to stop working, namely, the heating furnace chamber is stopped, and S521 is carried out; if not, go to S51;
s521, the controller controls the driving assembly to open the door body until the door body and the door frame form an included angle of 10-20 degrees (preferably 15 degrees), and controls the circulating fan to close;
s522, detecting a third cleaning temperature T in the furnace cavity after the circulating fan is closed in real time by a temperature detection element3And the third cleaning temperature T is set3Sent to the controller which receives the third cleaning temperature T3Then, T is judged3Whether or not: t is3≤T3', wherein T3' is a third cleaning temperature threshold (which may be 60 ℃ for example) after the circulation fan is turned off; if yes, accumulating the drying time tDrying by bakingClearing, finishing drying, and then carrying out S6; if not, proceed to S521.
And S6, after the drying is finished, the controller controls the driving assembly to completely open the door body, and the steam cooking equipment is shut down.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A method for automatically cleaning an oven cavity of a steam cooking device is characterized by comprising the following steps:
s1, starting the automatic cleaning function of the steam cooking equipment;
s2, controlling the temperature in the oven cavity by heating the oven cavity of the steam cooking equipment, starting a circulating fan, and conveying steam into the oven cavity to automatically clean the oven cavity;
s3, after the automatic cleaning is finished, stopping heating the oven cavity, and discharging the waste water in the oven cavity out of the steam cooking equipment;
s4, after the S3 is finished, stopping the circulating fan and simultaneously recording the accumulated stop time t of the circulating fanStopWhen the cumulative stop time t of the circulating fanStopSatisfies the following conditions: t is tStop≤tStop' time, judging whether a door body of the steam cooking equipment is opened or not, wherein tStop' is the cumulative stop time threshold of the circulating fan;
if yes, suspending the automatic cleaning program until the accumulated stop time t of the circulating fan is reached after the door body is detected to be closedStopClearing and then performing S5;
if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5;
s5, heating the furnace chamber again, and starting the circulating fan to dry the furnace chamber;
and S6, after the drying is finished, the door body is completely opened, and the steam cooking equipment is turned off.
2. The automatic washing method of an oven cavity of a steam cooking apparatus of claim 1, wherein the S2 further comprises the steps of:
s21, controlling the first cleaning temperature T in the furnace cavity1Starting the circulating fan within a first cleaning temperature threshold range, conveying steam into the furnace chamber, and starting to record accumulated cleaning time tCleaning of；
S22, judging the accumulated cleaning time tCleaning ofWhether or not: t is tCleaning of≥tCleaning of', where tCleaning of' is a cumulative wash time threshold; if not, returning to S21; if yes, go to S23;
s23, stopping delivering the steam into the furnace cavity,stopping heating the furnace chamber, and accumulating the cleaning time tCleaning ofAnd (4) zero clearing, finishing the automatic cleaning and simultaneously entering S3.
3. The automatic washing method of an oven cavity of a steam cooking apparatus of claim 1, wherein the S3 further comprises the steps of:
s31, after the automatic cleaning is finished, discharging the waste water in the oven cavity out of the steam cooking equipment, and starting to record the accumulated water discharging time tDraining water；
S32, judging the accumulated drainage time tDraining waterWhether or not: t is tDraining water≥tDraining water', where tDraining water' is a cumulative drainage time threshold; if not, returning to S31; if yes, go to S33;
s33, stopping draining, wherein the accumulated draining time tDraining waterZero clearing is performed, and water discharge is completed, and the process proceeds to S4.
4. The automatic washing method of an oven cavity of a steam cooking apparatus of claim 1, wherein the S4 further comprises the steps of:
s41, after the S3 is finished, detecting the second cleaning temperature T in the furnace cavity at the moment2And determining T2Whether the following conditions are met: t is2＜T2', wherein, T2' a second washing temperature threshold of the furnace chamber after the wastewater is discharged; if not, the circulating fan continuously works; if yes, go to S42;
s42, stopping the circulating fan and recording the accumulated stopping time t of the circulating fanStopWhen the cumulative stop time t of the circulating fanStopSatisfies the following conditions: t is tStop≤tStop' when, judge whether the said door is opened, wherein tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5; if yes, go to S43;
s43, detecting whether the door body is closed in real time; if yes, the circulating fan is accumulatedCounting the stop time tStopAfter zero clearing, S5 is carried out; if not, S42 is repeated.
5. The automatic washing method of an oven cavity of a steam cooking apparatus of claim 1, wherein the S5 further comprises the steps of:
s51, heating the furnace chamber again, starting the circulating fan, and controlling the drying temperature T in the furnace chamberDrying by bakingWithin the range of the drying temperature threshold value, and simultaneously, the cumulative drying time t is recordedDrying by baking；
S52, judging the accumulated drying time tDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking', wherein, tDrying by baking' is a cumulative drying time threshold; if yes, stopping heating the furnace chamber, stopping the circulating fan, and accumulating the drying time tDrying by bakingClearing, finishing drying and carrying out S6; if not, S51 is repeated.
6. The automatic washing method of an oven cavity of a steam cooking apparatus of claim 5, wherein the S52 further comprises the steps of:
s52, judging the accumulated drying time tDrying by bakingWhether or not: t is tDrying by baking≥tDrying by baking', wherein, tDrying by baking' is a cumulative drying time threshold; if yes, stopping heating the furnace chamber, and performing S521; if not, go to S51;
s521, controlling the door body to be opened until the door body and a door frame form an included angle of 10-20 degrees, and closing the circulating fan;
s522, detecting the third cleaning temperature T in the furnace cavity after the circulating fan is closed in real time3Judging the said T3Whether or not: t is3≤T3', wherein T3' is a third cleaning temperature threshold after the circulation fan is turned off; if yes, the accumulated drying time tDrying by bakingClearing, finishing drying and carrying out S6; if not, proceed to S521.
7. The method of claim 6, wherein the door forms an angle of 15 ° with the door frame.
8. The automatic washing method of an oven cavity of a steam cooking apparatus of claim 4, wherein the S42 further comprises the steps of:
s42, stopping the circulation fan, starting the buzzer, and recording the accumulated stop time t of the circulation fanStopWhen the cumulative stop time t of the circulating fanStopSatisfies the following conditions: t is tStop≤tStop' when, judge whether the said door is opened, wherein tStop' is the cumulative stop time threshold of the circulating fan; if not, accumulating the stop time t of the circulating fanStopZero clearing, and performing S5; if yes, S43 is performed.
9. A steam cooking device is characterized by comprising a heating assembly (1) for heating a furnace chamber, a water draining assembly for draining water, a temperature detection element for detecting the temperature of the furnace chamber, a timer for recording time and a driving assembly for driving a door body to be opened;
the heating assembly (1), the drainage assembly, the temperature detection element, the timer and the driving assembly are all electrically connected with a controller of the steam cooking equipment;
after the controller controls the steam cooking equipment to start an automatic cleaning function, the heating assembly (1) is controlled to heat the furnace chamber, the temperature in the furnace chamber is controlled by combining the temperature detection unit, and meanwhile, the circulating fan and the steam generator are started to convey steam into the furnace chamber to realize automatic cleaning of the furnace chamber;
after the automatic cleaning is finished, the controller controls the drainage assembly to be started for draining the wastewater in the furnace cavity;
the controller controls the circulating fan to stop, and the timer starts to record the accumulated stop time t of the circulating fanStop(ii) a When the stop time t is accumulatedStopSatisfies the following conditions:tstop≤tStop' then, the controller further determines whether the door body is opened, wherein tStop' is the cumulative stop time threshold of the circulating fan;
if yes, suspending the automatic cleaning program, resetting the timer until the door body is detected to be closed, controlling the heating assembly (1) to work again by the controller, starting the circulating fan again to dry the furnace chamber, finally controlling the driving assembly to open the door body, and shutting down the steam cooking equipment;
if not, resetting the timer, controlling the heating assembly (1) to work again by the controller, starting the circulating fan again to dry the furnace chamber, and finally controlling the driving assembly to open the door body and shutting down the steam cooking equipment.
10. Steam cooking device according to claim 9, wherein the heating assembly (1) comprises a first heater (11) located at the top of the oven cavity, a second heater (12) located at the back of the oven cavity, a third heater (13) located at the bottom of the oven cavity;
the first heater (11), the second heater (12) and the third heater (13) are electrically connected with the controller respectively;
the drainage component comprises a drainage pump, a drainage valve and a water delivery pipe; one end of the water conveying pipe is communicated with the furnace chamber, the other end of the water conveying pipe is communicated with the wastewater tank, the draining pump and the draining valve are both arranged on the water conveying pipe, and the draining pump and the draining valve are both electrically connected with the controller.
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