CN113116166A - Heat preservation control method of cooking appliance - Google Patents
Heat preservation control method of cooking appliance Download PDFInfo
- Publication number
- CN113116166A CN113116166A CN202010029192.4A CN202010029192A CN113116166A CN 113116166 A CN113116166 A CN 113116166A CN 202010029192 A CN202010029192 A CN 202010029192A CN 113116166 A CN113116166 A CN 113116166A
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- cooking appliance
- heat preservation
- cover
- pot cover
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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
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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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
- A47J2202/00—Devices having temperature indicating means
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- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a heat preservation control method of a cooking appliance, belonging to the technical field of kitchen cooking appliance control, and the heat preservation control method provided by the invention comprises the following steps: after the cooking appliance enters a heat preservation stage, carrying out cover opening detection, and detecting the opening and closing state of a pot cover of the cooking appliance; if the pot cover is determined to be in an open state, timing is started and whether the pot cover is closed within preset time is judged; and if the pot cover is not closed within the preset time, giving an overtime alarm. When a user opens the cover to contain food and forgets to close the cover, or the cover is not completely closed for more than preset time, the cooking appliance gives an alarm overtime so as to remind the user to close the cover in time, and the phenomenon that the food moisture in the pot is excessively evaporated and is baked due to the long-time opening of the cover is avoided.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of kitchen cooking appliance control, in particular to a heat preservation control method of a cooking appliance.
[ background of the invention ]
After the electric cooker with the heat preservation function in the prior art enters a heat preservation stage, the heat preservation temperature is maintained within a set range by controlling the heating power and the heating time of a bottom heater, and once the heat preservation temperature is reduced below a set value, the electric cooker restarts to heat. If the user forgets to close the pot cover after opening the cover to contain food or the pot cover is not completely closed, the heat in the pot continuously flows away, and based on the heat preservation setting, the bottom heater continuously heats to compensate the heat lost in the pot, so that the food moisture in the pot is excessively evaporated and is baked, and the waste of electric energy is caused.
[ summary of the invention ]
The invention aims to overcome the defects of the prior art and provides a heat preservation control method of a cooking appliance, which can remind a user of improper operation in a heat preservation stage of the cooking appliance, so that the use experience is improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the heat preservation control method of the cooking appliance comprises the following steps:
after the cooking appliance enters a heat preservation stage, carrying out uncovering detection, and detecting the opening and closing state of a pot cover of the cooking appliance;
if the pot cover is determined to be in an open state, timing is started and whether the pot cover is closed within preset time is judged;
and if the pot cover is not closed within the preset time, giving an overtime alarm.
In the heat preservation control method of the cooking utensil, the pot cover is provided with the top temperature sensor, and the opening and closing state of the pot cover is judged according to the top temperature acquired by the top temperature sensor after the cooking utensil enters a heat preservation stage.
In the heat preservation control method of the cooking appliance, the cover opening induction switch is arranged on the pot body or the pot cover of the cooking appliance, and the opening and closing state of the pot cover is judged according to the induction signal of the cover opening induction switch after the cooking appliance enters the heat preservation stage.
In the heat preservation control method of the cooking appliance, if the pot cover is closed within the preset time after being opened, the time is reset.
In the above-mentioned heat-retaining control method of the cooking appliance, if the lid is not closed within the predetermined time, the heating power in the heat-retaining stage is reduced or the heating is stopped.
In the heat preservation control method of the cooking appliance, the cover opening detection is cancelled when the remaining heat preservation time in the heat preservation stage is less than or equal to the preset time.
In the insulation control method of the cooking appliance, the cooking appliance adjusts the preset time according to the food material amount in the heating stage.
In the method for controlling the heat preservation of the cooking appliance, the amount of the food materials detected by the cooking appliance in the heating stage is millet, and the preset time is set to t 1;
the food material amount detected by the cooking appliance in the heating stage is the medium rice amount, and the preset time is set to t 2;
the amount of food materials detected by the cooking appliance in the heating stage is the amount of rice, and the preset time is set to t 3;
wherein t1 < t2 < t 3.
In the heat preservation control method of the cooking appliance, the cooking appliance obtains the amount of the food material according to the heating temperature change within the set time in the heating stage;
or the cooking appliance acquires the amount of the food materials according to the time required for heating to the set temperature in the heating stage;
or a weighing module is arranged in the cooking appliance, and the cooking appliance obtains the amount of the food materials through the weighing module in the heating stage.
The invention has the beneficial effects that:
according to the heat preservation control method of the cooking appliance, when a user forgets to close the pot cover after opening the cover to contain food or the pot cover is not completely closed for more than preset time, the cooking appliance gives an overtime alarm to remind the user to close the pot cover in time, so that the food in the pot is prevented from being dried due to excessive evaporation of water after the user opens the cover for a long time; except reminding the user to close the pot cover, the user can also choose to cancel the heat preservation function according to the overtime alarm prompt, and the user is reminded under the condition that the heat preservation is not needed but not cancelled in time by the user, so that unnecessary heat preservation time is prevented from being increased, electric energy is wasted, the product function is more humanized, and the use experience is improved.
Aiming at uncovering detection, the invention provides the following two detection modes:
the first detection mode is that a top temperature sensor is arranged on the pot cover, and the open-close state of the pot cover is judged according to the top temperature acquired by the top temperature sensor after the cooking utensil enters a heat preservation stage.
The second detection mode is that a cover opening inductive switch is arranged on a pot body or a pot cover of the cooking appliance, and the opening and closing state of the pot cover is judged according to an inductive signal of the cover opening inductive switch after the cooking appliance enters a heat preservation stage.
Compared with the mode of judging whether to open the cover or not through the change of the food material quantity in the pot in the prior art, the two detection modes provided by the invention are simpler and more effective, and the complex logical operation process is avoided, so that the reliability of cover opening detection is improved.
These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of a cooking appliance according to an embodiment of the present invention;
fig. 2 is a flowchart of a heat-preservation control method according to an embodiment of the present invention.
Reference numerals:
100 pan bodies;
200 of a pot cover;
300 pot liner
400 top temperature sensor.
[ detailed description ] embodiments
The invention provides a heat preservation control method of a cooking appliance, which comprises the following steps: after the cooking appliance enters a heat preservation stage, carrying out uncovering detection, and detecting the opening and closing state of a pot cover of the cooking appliance; if the pot cover is determined to be in an open state, timing is started and whether the pot cover is closed within preset time is judged; and if the pot cover is not closed within the preset time, giving an overtime alarm. Based on the heat preservation control method, when a user opens the cover to contain food and forgets to close the cover, or the cover is not completely closed for more than preset time, the cooking appliance gives an overtime alarm to remind the user to close the cover in time, so that the food in the pot is prevented from being dried due to excessive evaporation of water after the user opens the cover for a long time; except reminding the user to close the pot cover, the user makes a selection in the processes of continuing heat preservation and canceling heat preservation by closing the pot cover according to the overtime alarm prompt, and the use experience is improved.
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a method for controlling insulation of a cooking appliance according to an embodiment of the present invention includes:
after the cooking appliance enters a heat preservation stage, carrying out cover opening detection, and detecting the opening and closing state of a pot cover of the cooking appliance;
if the pot cover is determined to be in an open state, timing is started and whether the pot cover is closed within preset time is judged;
if the pot cover is not closed within the preset time, the overtime alarm is carried out.
Specifically, the method comprises the following steps: the cooking appliance of the present embodiment includes a body 100 and a lid 200, the body having an outer pot and a pot container 300 accommodated in the outer pot, a heating device (e.g., a heating plate, an electromagnetic wire coil, etc.) provided at the bottom of the outer pot, and a top temperature sensor 400 provided on the lid for acquiring a top temperature of a cooking space (formed by the lid closing the pot container) so as to control a cooking temperature in a cooking heating stage.
In this embodiment, after the cooking utensil enters the heat preservation stage, the open/close state of the pot lid is determined by the top temperature obtained by the top temperature sensor 400. In the heat preservation stage, if the pot cover is in the closed state, the top temperature sensor 400 is in the relatively closed cooking space, so that the obtained temperature is relatively stable, and if the pot cover is opened, the top temperature sensor 400 is exposed in the air, and the ambient temperature rapidly drops, so that the open-close state of the pot cover can be judged according to the temperature obtained by the top temperature sensor 400. For the cover opening detection mode, the temperature sensor used in the cooking utensil is directly utilized, and an additional detection device is not required, so that the detection cost is reduced. The open-cover detection method based on the top temperature sensing can refer to the following one example:
in uncapping detection, whether the temperature obtained by the top temperature sensor is in a descending trend within a preset time period or not and the temperature difference exceeds a threshold value is judged, for example: the preset time is set to 10s, the threshold value is set to 6 ℃, after the cooking appliance enters a heat preservation stage, the temperature T1 is firstly obtained through the top temperature sensor, the temperature T2 is obtained through the top temperature sensor when the preset time is 10s, if T1-T2 is larger than 6 ℃, the pot cover is judged to be in an open state, and otherwise, the pot cover is judged to be in a closed state. Therefore, cover opening misdetection caused by small temperature difference can be avoided, and the reliability of cover opening detection is improved.
If the cover opening detection judges that the pot cover is in a closed state, maintaining the current heat preservation program to continue heat preservation; if the cover opening detection judges that the pot cover is in an open state, timing is started and whether the pot cover is closed within preset time is judged, the preset time mainly takes the time required by a user for opening the cover to contain food or putting cold food into the pot cover after opening the cover into consideration, if the user forgets to close the pot cover after opening the cover or the pot cover is not completely closed, the cooking appliance gives an overtime alarm when the preset time is over, the alarm mode can be a voice alarm, an indicator lamp alarm or the combination of the voice alarm and the indicator lamp alarm, the user is reminded to close the pot cover in time, and the phenomenon that the food moisture in the pot is excessively evaporated and is baked due to long; except reminding the user to close the pot cover, the user can also choose to cancel the heat preservation function according to the overtime alarm prompt, and the user is reminded under the condition that the heat preservation is not needed but not cancelled in time by the user, so that unnecessary heat preservation time is prevented from being increased, electric energy is wasted, the product function is more humanized, and the use experience is improved.
According to the heat preservation control method of the embodiment, if the pot cover is closed within the preset time after being opened, the time is cleared. After the cover is closed, the temperature acquired by the top temperature sensor can rise again in a short time, so that whether the cover is closed again after being opened can be judged according to the temperature acquired by the top temperature sensor, for example, in the detection process, whether the temperature acquired by the top temperature sensor is in a rising trend in a preset time period or not and the temperature difference exceeds a threshold value is judged, if yes, the cover is judged to be closed again after being opened, and the cooking appliance cannot give an alarm overtime.
In one embodiment of the invention, based on the above embodiment: the other detection mode is provided, a cover opening induction switch is arranged on a pot body or a pot cover of the cooking appliance, and the opening and closing state of the pot cover is judged according to an induction signal of the cover opening induction switch after the cooking appliance enters a heat preservation stage. The following are exemplary: set up micro-gap switch on the pot body, under the pot cover closed state, micro-gap switch is in the on-state, under the pot cover open state, micro-gap switch is in the off-state, the on-off state of pot cover can be judged according to micro-gap switch's switching on or off signal, the inductive switch that uncaps also can select photoelectric sensing switch (like infrared sensor), magnetic control switch (like reed switch) etc. uncap that utilizes above-mentioned switch to carry out detects and can independently go on, the uncap detection information that obtains from this does not interfere with the detection information in original culinary art procedure each other, can guarantee the accuracy that uncap detected and do not influence normal culinary art procedure again.
In one embodiment of the invention, based on the above embodiment: if the pot cover is not closed within the preset time, the heating power in the heat preservation stage is reduced or the heating is stopped. Under the condition that the user does not close the pot cover, whether the user needs to keep warm is not determined, at the moment, the heating power in the heat preservation stage is reduced or heating is stopped, electric energy can be saved, and excessive heating of food can be avoided. After the cooking appliance gives an alarm when the time is out, if the user closes the pot cover again, the cooking appliance can recover the normal heat preservation program after detecting that the pot cover is closed.
In one embodiment of the invention, based on the above embodiment: and when the residual heat preservation time in the heat preservation stage is less than or equal to the preset time, uncapping detection is cancelled. The timing heat preservation function of the cooking utensil is mainly aimed at, and the user can set the heat preservation time of the heat preservation stage according to actual needs through the timing heat preservation function. If the remaining heat preservation time in the heat preservation stage is less than or equal to the preset time, even if a user forgets to close the pot cover after opening the pot cover, the heat preservation stage can be cancelled when the heat preservation time is over, and excessive heating of food cannot be caused. Therefore, when the remaining heat preservation time in the heat preservation stage is less than or equal to the preset time, uncovering detection is cancelled, and poor experience of overtime alarm after the heat preservation stage is finished can be avoided.
In one embodiment of the invention, based on the above embodiment: the cooking appliance adjusts the preset time according to the food material amount in the heating stage. The preset time mainly considers that a user opens a cover to hold food, but the food quantity cooked by the cooking appliance at each time is different, if the food quantity cooked is more, but the preset time is set to be shorter, the cooking appliance can possibly alarm overtime when the user holds the food, bad experience is brought to the user, if the food quantity cooked is less, but the preset time is set to be longer, and when the user forgets to close the cover, the food can be heated for a long time until alarm. Therefore, the present embodiment optimizes the setting of the predetermined time, which is associated to the amount of cooking ingredients, such as the following examples:
the food material amount detected by the cooking appliance in the heating stage is millet amount, and the preset time is set to t 1;
the food material amount detected by the cooking appliance in the heating stage is the medium rice amount, and the preset time is set to t 2;
the amount of the food materials detected by the cooking appliance in the heating stage is the amount of rice, and the preset time is set to t 3;
wherein t1 < t2 < t 3.
It can be seen from the above example that the more the food material amount, the longer the predetermined time is, and the overtime alarm is avoided when the user takes the food material, and if the food material amount is less, the overtime alarm can be also carried out in a short time, so that the food material is prevented from being heated for a long time.
For detecting the amount of food materials, there are several general ways:
1. the cooking utensil embeds weighing module, and cooking utensil passes through weighing module and acquires the edible material volume in the heating stage.
2. The cooking appliance obtains the amount of food material according to the change of the heating temperature within the set time in the heating stage, for example, the time is counted from a certain moment in the heating stage, the temperature Ta obtained by the top temperature sensor is recorded, the temperature Tb obtained by the top temperature sensor is recorded when the heating is finished to the set time, the amount of the cooking food material is different, and the temperature value Tb under the same time condition is also different, so that the amount of the food material is detected.
3. The cooking appliance obtains the amount of food material according to the time required for heating to the set temperature in the heating stage, for example, the time is counted from a certain time in the heating stage, the temperature Ta obtained by the top temperature sensor is recorded, when the temperature obtained by the top temperature sensor reaches higher Tc, the heating time required from the temperature Ta to the temperature Tc is obtained, the amount of cooked rice is different, and the time for reaching the same temperature Tc is also different, so that the amount of food material is detected.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (9)
1. A heat preservation control method of a cooking appliance is characterized by comprising the following steps:
after the cooking appliance enters a heat preservation stage, carrying out uncovering detection, and detecting the opening and closing state of a pot cover of the cooking appliance;
if the pot cover is determined to be in an open state, timing is started and whether the pot cover is closed within preset time is judged;
and if the pot cover is not closed within the preset time, giving an overtime alarm.
2. The heat preservation control method of the cooking appliance according to claim 1, wherein a top temperature sensor is provided on the lid, and the open/close state of the lid is determined by the top temperature acquired by the top temperature sensor after the cooking appliance enters the heat preservation stage.
3. The heat preservation control method of the cooking appliance according to claim 1, wherein a cover opening inductive switch is provided on a pot body or a pot cover of the cooking appliance, and the open/close state of the pot cover is judged according to an inductive signal of the cover opening inductive switch after the cooking appliance enters the heat preservation stage.
4. The insulation control method of cooking utensil as claimed in claim 1, characterized in that if the lid is closed within the predetermined time after being opened, the timer is cleared.
5. The insulation control method of cooking appliance according to claim 1, wherein if the lid is not closed within a predetermined time, the heating power of the insulation stage is reduced or the heating is stopped.
6. The method for controlling keeping warm of a cooking appliance according to claim 1, wherein the uncap detection is cancelled when a remaining keeping warm time of the keeping warm stage is less than or equal to the predetermined time.
7. The method for controlling the heat preservation of the cooking appliance according to any one of claims 1 to 6, wherein the cooking appliance adjusts the predetermined time according to the amount of the food material in the heating stage.
8. The heat preservation control method of the cooking appliance according to claim 7, wherein the amount of the food material detected by the cooking appliance in the heating stage is millet amount, and the predetermined time is set to t 1;
the food material amount detected by the cooking appliance in the heating stage is the medium rice amount, and the preset time is set to t 2;
the amount of food materials detected by the cooking appliance in the heating stage is the amount of rice, and the preset time is set to t 3;
wherein t1 < t2 < t 3.
9. The method for controlling the heat preservation of the cooking appliance according to claim 7, wherein the cooking appliance obtains the amount of the food material according to the change of the heating temperature within a set time during the heating stage;
or the cooking appliance acquires the amount of the food materials according to the time required for heating to the set temperature in the heating stage;
or a weighing module is arranged in the cooking appliance, and the cooking appliance obtains the amount of the food materials through the weighing module in the heating stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010029192.4A CN113116166A (en) | 2020-01-13 | 2020-01-13 | Heat preservation control method of cooking appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010029192.4A CN113116166A (en) | 2020-01-13 | 2020-01-13 | Heat preservation control method of cooking appliance |
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| CN113116166A true CN113116166A (en) | 2021-07-16 |
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| CN202010029192.4A Pending CN113116166A (en) | 2020-01-13 | 2020-01-13 | Heat preservation control method of cooking appliance |
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