CN113175691A - Cooking appliance, control method and readable storage medium - Google Patents
Cooking appliance, control method and readable storage medium Download PDFInfo
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- CN113175691A CN113175691A CN202110480079.2A CN202110480079A CN113175691A CN 113175691 A CN113175691 A CN 113175691A CN 202110480079 A CN202110480079 A CN 202110480079A CN 113175691 A CN113175691 A CN 113175691A
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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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/02—Stoves or ranges heated by electric energy using microwaves
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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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/081—Arrangement or mounting of control or safety devices on stoves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
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Abstract
The invention provides a cooking appliance, a control method and a readable storage medium. Wherein, a cooking utensil includes: a housing provided with a cooking cavity; and the gas-sensitive detection device is arranged on the shell and is used for detecting the concentration of the reducing gas in the cooking cavity. Thereby need not to open the door and can detect or monitor reducing gas's concentration through the inside gas sensitive detection device of cooking utensil, be favorable to the user accuracy to learn the content of cooking intracavity reducing peculiar smell gas, avoid the user to rely on the error that subjective judgement cavity cleanliness factor caused, make the detection to reducing peculiar smell gas more objective, rigorous and science, can also make the user in time clean cooking utensil, guarantee to eat material culinary art security and user's healthy.
Description
Technical Field
The invention relates to the technical field of cooking appliances, in particular to a cooking appliance, a control method and a readable storage medium.
Background
In the related art, after the cavity of the microwave oven is used, bacteria can be bred due to reasons such as untimely cleaning or food residues, peculiar smell can be generated, a user can feel the peculiar smell only by opening the microwave oven door, the user is required to judge the cleaning degree of the cavity according to experience, and the contents of the bacteria and the peculiar smell in the cavity cannot be accurately known.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the invention provides a cooking appliance.
The second aspect of the invention also provides a control method.
A third aspect of the invention also provides a readable storage medium.
In view of this, a first aspect of the present invention proposes a cooking appliance, comprising: a housing provided with a cooking cavity; and the gas-sensitive detection device is arranged on the shell and is used for detecting the concentration of the reducing gas in the cooking cavity.
The invention provides a cooking appliance which comprises a shell and a gas-sensitive detection device. Wherein, the casing is equipped with the culinary art chamber, and the edible material can be placed in the culinary art intracavity. And the gas-sensitive detection device is arranged on the shell, and at least one part of the gas-sensitive detection device can be in contact with reductive odor gas in the cooking cavity. When the gas-sensitive detection device is contacted with the reducing gas, the concentration of the reducing gas with peculiar smell in the cooking cavity is detected according to the characteristic of device resistance change caused by reaction or adsorption of the gas-sensitive detection device and the reducing gas. On the one hand, need not to open the door and can detect or monitor reducing gas's concentration through the inside gas sensitive detection device of cooking utensil, be favorable to the user accuracy to learn the content of culinary art intracavity reducing peculiar smell gas, avoid the user to rely on the error that subjective judgement cavity cleanliness factor caused for it is more objective, rigorous and scientific to reducing peculiar smell gas's detection. On the other hand, the user can clean the cooking appliance in time, and food cooking safety and body health of the user are guaranteed. In another aspect, the cooking cavity after cleaning can be verified by detecting the concentration of the reducing odor, so that whether the cleaning operation of the cooking cavity meets the cleaning requirement of a user or not is judged, and the trouble problem of a cleaning device in the cooking appliance is favorably checked.
Wherein the reducing gas comprises trimethylamine, ammonia, hydrogen sulfide, thioether, mercaptan, etc.
According to the cooking utensil provided by the invention, the following additional technical characteristics can be provided:
in the above technical solution, further, the gas sensitive detection apparatus includes: a gas sensor; and the processor is electrically connected with the gas sensor and is used for determining the concentration of the reducing gas according to the voltage of the gas sensor.
In this solution, the gas sensing apparatus includes a gas sensor and a processor. The gas-sensitive element is electrically connected with the processor, when the gas-sensitive element and reducing gas with peculiar smell are subjected to reduction reaction or adsorb the reducing gas, the resistance value of the gas-sensitive element is changed, and the change of the resistance value leads to the change of the voltage partial pressure of the gas-sensitive element in the circuit. The processor can read the voltage of the two sides of the gas sensor and determine the corresponding concentration of the reducing gas according to the read voltage. Thereby can utilize reducing gas's concentration to provide reliable foundation for user's perception culinary art chamber cleanness degree, the user can in time clean cooking utensil, not only improves user's use and experiences, has still ensured eating material culinary art security and user's healthy.
In any of the above solutions, further, the gas sensor includes a tin oxide element.
In the technical scheme, a tin oxide element is adopted as a gas sensor. The tin oxide element has high selectivity and sensitivity and short response recovery time to the reducing gas, so that whether the reducing gas exists can be detected in a plurality of mixed gases, and the concentration of the reducing gas can be accurately detected by means of the conductivity change before and after the tin oxide element is contacted with the reducing gas. And tin oxide component stability is higher for the influence that the high temperature that produces caused the tin oxide component during the culinary art is less, enlarges the realization condition that the peculiar smell detected, promotes cooking utensil's reliability.
In any of the above technical solutions, further, the cooking appliance further includes: and the prompting device is arranged on the shell and is electrically connected with the gas-sensitive detection device, and the prompting device is used for outputting prompting information corresponding to the concentration of the reducing gas.
In the technical scheme, the cooking appliance is also provided with a prompting device which is electrically connected with the gas-sensitive detection device. After the gas-sensitive detection device determines the concentration of the reducing gas in the cooking cavity, the processor of the gas-sensitive detection device can control the prompt device to output prompt information related to the concentration of the reducing gas so as to remind a user of the concentration of the reducing gas detected at this time, so that the user can know whether the cavity is filled with the peculiar smell or not according to the prompt information without opening the door, and whether the cooking cavity needs to be cleaned is judged according to the prompt information. And then improve user's use experience, ensure user's healthy.
In any of the above technical solutions, further, the prompting device includes at least one of the following: pilot lamp, display screen, audio player.
In this technical scheme, suggestion device can be pilot lamp, display screen, also can be audio player, demonstrates reducing gas's concentration through changes such as the colour of pilot lamp, luminance, scintillation frequency, and the pilot lamp simple structure, low cost and space occupy lessly, are favorable to the cooking utensil miniaturization. The display screen can display the concentration of the reducing gas, the cleaning level of the cooking cavity and other contents in the form of images, videos or characters, so that the prompt information is more visual and clear, and the user can perceive the prompt information conveniently. The user is reminded with the form of pronunciation or music with reducing gas's concentration through audio player for the user far away from cooking utensil also can in time learn the condition of cooking intracavity reducing gas, promotes user's use and experiences.
It is worth mentioning that, to visual suggestion devices such as pilot lamp, display screen, can install it in the casing and deviate from one side of cooking chamber, promptly suggestion device installs on cooking utensil's outer wall to the user observes conveniently.
In any of the above technical solutions, further, the cooking appliance further includes: the door body is connected with the shell; at least one part of the gas-sensitive detection device is positioned on one side of the cooking cavity far away from the door body.
In this technical scheme, cooking utensil still includes the door body, and the door body rotates with the casing to be connected, and door body group spare can open or close the culinary art chamber. Furthermore, after the door body is opened or at the door gap, the odor in the cooking cavity can exchange with the air outside the shell, so that detection errors are caused. Therefore, the part of the gas-sensitive detection device exposed in the reducing gas can be arranged on one side of the cooking cavity far away from the door body, namely, the gas-sensitive detection device is arranged at the position far away from the door body as far as possible, and the interference of opening and closing the door on the data collected by the gas-sensitive detection device is avoided, so that the accuracy of the gas-sensitive detection device for detecting the reducing gas is improved.
In any of the above technical solutions, further, the cooking appliance further includes: and the cleaning device is arranged on the shell and used for removing the reducing gas.
In this technical scheme, cooking utensil still is provided with cleaning device, can clear away the bacterium of reducing gas and/or culinary art intracavity through cleaning device to guarantee the cleanliness of culinary art chamber, be favorable to promoting the culinary art quality and the security of eating the material, guarantee that the user is healthy.
Specifically, cleaning device can be connected with gas-sensitive detection device's treater electricity, when the treater detects that reducing gas's concentration is greater than or equal to predetermined second concentration threshold value, it is great to explain culinary art intracavity reducing gas content, can produce great peculiar smell, be unfavorable for eating the material culinary art, then process control cleaning device begins work, with the reducing gas discharge casing outside with the culinary art intracavity, thereby realize the self-cleaning function in culinary art chamber, be favorable to keeping the cleanliness in culinary art chamber, simplify user operation, promote user's use and experience.
In any of the above technical solutions, further, the cleaning device includes at least one of the following: exhaust subassembly, microwave subassembly, ozone generator, adsorption component.
In this solution, the cleaning device may be one or more of an exhaust assembly, a microwave assembly, an ozone generator, and an adsorption assembly. Wherein, exhaust subassembly and cooking chamber intercommunication, when receiving the clean instruction of cooking chamber, exhaust subassembly extracts the gas in the cooking chamber, perhaps fills the cooking intracavity with outside air to make the gas in the cooking chamber discharge cooking utensil. The heat energy generated by the microwave emitted by the microwave assembly kills microorganisms, thereby inhibiting the generation of odor gas. The ozone generator is communicated with the cooking cavity, and the sterilization and deodorization work is carried out through the ozone generated by the ozone generator. The adsorption piece is arranged in the cooking cavity and used for adsorbing peculiar smell gas in air flowing through the adsorption piece so as to remove peculiar smell in the cooking cavity.
According to a second aspect of the present invention, there is provided a control method for the cooking appliance set forth in the first aspect, the control method comprising: detecting the concentration of reducing gas in a cooking cavity of the cooking appliance; and outputting prompt information according to the concentration.
In the technical scheme, after the cooking appliance is powered on, the concentration of the reducing gas in the cooking cavity of the cooking appliance is detected, and prompt information is output according to the obtained concentration of the reducing gas to prompt a user whether the reducing gas with peculiar smell and the content of the reducing gas exist in the current cooking cavity or not. On the one hand, need not to open the culinary art chamber and can detect or monitor reducing gas's concentration, be favorable to the user to know the content of the interior reducing peculiar smell gas of culinary art chamber accurately, avoid the user to rely on the error that subjective judgement cavity cleanliness factor caused for it is more objective, rigorous and scientific to reducing peculiar smell gas's detection. On the other hand, the user can clean the cooking appliance in time, and food cooking safety and body health of the user are guaranteed. In another aspect, the cleaned cooking cavity can be verified, so that whether the cleaning operation of the cooking cavity meets the cleaning requirement of a user or not is judged, and the problem of failure of a cleaning device in the cooking appliance is solved.
In any one of the above technical solutions, further, the cooking appliance includes a prompting device for outputting prompting information according to the concentration, and the method includes: determining a prompt parameter corresponding to the concentration according to the corresponding relation between the preset concentration and the preset prompt parameter on the basis that the concentration is greater than or equal to the first concentration threshold; and controlling the prompting device to output prompting information according to the prompting parameters.
In this technical scheme, cooking utensil is provided with the suggestion device that is used for outputting the suggestion information. And comparing the magnitude relation between the concentration of the reducing gas and the first concentration threshold value, and indicating that the peculiar smell exists in the cooking cavity when the concentration of the reducing gas is detected to be greater than or equal to the first concentration threshold value. At the moment, the prompt parameter corresponding to the concentration is searched in the corresponding relation between the preset concentration and the preset prompt parameter, and the prompt device is controlled to output prompt information related to the concentration of the reducing gas according to the prompt parameter. Thereby show the user with different prompt information with the concentration of difference, make the user can learn the content of culinary art intracavity reducing gas more directly perceived, accurately to in the user formulates the culinary art plan, and carries out follow-up control operation to cooking utensil, promote cooking utensil's convenience.
Further, considering that the speed of bacteria breeding and the peculiar smell generating conditions are greatly different in different environment temperature scenes, the environment temperature of the control where the cooking appliance is located is obtained before the concentration of the reducing gas is compared with the first concentration threshold, and the first concentration threshold is determined according to the environment temperature.
In any of the above technical solutions, further, the prompt parameter includes at least one of the following: the color of the indicator light, the flashing frequency of the indicator light, the brightness value of the indicator light, the display content of the display screen and the audio data of the audio player.
In this embodiment, different indication parameters may be configured for different concentrations of the reducing gas. The prompting parameters comprise one or more of color of the indicator light, flashing frequency of the indicator light, brightness value of the indicator light, display content of the display screen and audio data of the audio player.
In any of the above technical solutions, further, the cooking appliance includes a cleaning device, and the control method further includes: determining an operating parameter of the cleaning device according to the concentration based on the concentration being greater than or equal to the second concentration threshold; and controlling the cleaning device to remove the reducing gas according to the working parameters.
In this technical solution, the cooking appliance is provided with a cleaning device for removing the reducing gas. And comparing the magnitude relation between the concentration of the reducing gas and the second concentration threshold, when the concentration of the reducing gas is detected to be greater than or equal to the second concentration threshold, indicating that the content of the reducing gas in the cooking cavity is large, generating large peculiar smell, being not beneficial to cooking food materials, setting the required working parameters of the cleaning device according to the detected concentration of the reducing gas, and controlling the cleaning device to work according to the working parameters. Thereby realize the self-cleaning function in culinary art chamber, be favorable to keeping the cleanliness in culinary art chamber, simplify user operation, promote user's use and experience.
Specifically, the second concentration threshold is greater than or equal to the first concentration threshold. The first concentration threshold and the second concentration threshold can be set reasonably according to the bearing capacity of a user for the reducing gas. For example, if the user needs to monitor the change in the concentration of the reducing gas, the first concentration threshold may be set to a smaller value, and if the user needs to remind that the odor is strong, the first concentration threshold may be set to a larger value.
In any of the above technical solutions, further, the cooking appliance includes a door body, and the control method further includes: acquiring the opening degree of a door body; and determining the corresponding relation between the preset concentration and the preset prompt parameter according to the opening.
In this technical scheme, after considering to open the door body, the gaseous meeting discharge cooking utensil in the cooking chamber, reducing gas is in the state that reduces gradually promptly. Therefore, the corresponding relation between the proper preset concentration and the preset prompt parameter can be adjusted according to the opening degree of the door body. Therefore, the prompt mode is dynamically adjusted under different scenes, and a reliable basis is provided for a user to judge the cleanness degree of the cooking cavity.
Specifically, in the corresponding relationship between the multiple groups of preset concentrations and the preset prompt parameters, the larger the opening degree of the door body is, the smaller the preset concentration corresponding to the preset prompt parameters is.
In any of the above technical solutions, further, the method further includes: determining concentration compensation amount according to the opening degree of the door body based on the opening state of the door body; and correcting the first concentration threshold value and/or the second concentration threshold value according to the concentration compensation amount.
In this technical scheme, because after opening the door body, the gas in the cooking chamber can discharge cooking utensil for the reducing gas in the cooking chamber reduces gradually, if still adopt with the concentration threshold value the same when closing the door body as the judgement basis of suggestion or clean operation, there is the possibility that suggestion device and cleaning device do not have meaning work. Moreover, the prompt device and the cleaning device are easy to be repeatedly switched on and off due to the instability of the gas flow, and the service life is further shortened. Therefore, when the door body is detected to be in the opening state, the gas flow after the gas door body is opened is determined according to the opening degree of the door body, and the concentration compensation quantity corresponding to the opening degree of the door body is searched in the corresponding relation between the preset gas flow and the preset concentration compensation quantity according to the gas flow. And increasing the first concentration threshold value and/or the second concentration threshold value according to the concentration compensation amount, thereby preventing prompting or cleaning misjudgment caused by opening the door body.
In any of the above technical solutions, further, the cooking appliance includes a gas sensor for detecting a concentration of a reducing gas in a cooking cavity of the cooking appliance, including: acquiring the voltage of a gas sensor; and determining the concentration corresponding to the voltage according to the corresponding relation between the preset voltage and the preset concentration.
In the technical scheme, after the gas sensitive element is contacted with reducing gas with peculiar smell, reduction reaction or adsorption effect can occur, at the moment, the resistance value of the gas sensitive element changes, and the change of the resistance value leads to the change of the voltage partial pressure of the gas sensitive element in the circuit. And obtaining the voltage at two sides of the gas sensitive element, comparing the voltage with a preset voltage, and when the voltage belongs to the preset voltage, taking the preset concentration corresponding to the preset voltage as the reducing gas concentration corresponding to the voltage of the gas sensitive element. Thereby can utilize reducing gas's concentration to provide reliable foundation for user's perception culinary art chamber cleanness degree, the user can in time clean cooking utensil, not only improves user's use and experiences, has still ensured eating material culinary art security and user's healthy.
According to a third aspect of the present invention, a readable storage medium is proposed, on which a program or instructions are stored, which when executed by a processor perform the control method proposed by the second aspect. Therefore, the readable storage medium has all the advantages of the control method provided in the second aspect, and redundant description is omitted to avoid repetition.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view illustrating a cooking appliance according to an embodiment of the present invention;
FIG. 2 shows one of the flow diagrams of the control method of one embodiment of the present invention;
FIG. 3 is a second flowchart of a control method according to an embodiment of the invention;
FIG. 4 is a third flow chart of a control method according to an embodiment of the present invention;
FIG. 5 shows a fourth flowchart of a control method of an embodiment of the invention;
FIG. 6 shows a fifth flowchart of a control method of an embodiment of the invention;
FIG. 7 shows a sixth schematic flow chart of a control method of an embodiment of the invention;
fig. 8 illustrates one of the operation principle diagrams of the microwave oven according to one embodiment of the present invention;
fig. 9 shows a second operation diagram of a microwave oven according to an embodiment of the present invention.
Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:
100 cooking utensils, 110 casings, 112 cooking chambers, 120 gas sensors, 130 prompting devices and 140 door bodies.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A cooking appliance, a control method, and a readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 9.
Example 1:
as shown in fig. 1, an embodiment according to a first aspect of the present invention proposes a cooking appliance 100, including: a housing 110 and a gas-sensitive detection device.
In detail, the housing 110 is provided with a cooking cavity 112. The gas-sensitive detection device is arranged in the casing 110 and is used for detecting the concentration of the reducing gas in the cooking cavity 112.
In this embodiment, the housing 110 is provided with a cooking cavity 112, and food material can be placed in the cooking cavity 112. And the gas-sensitive detection device is arranged on the shell 110, and at least one part of the gas-sensitive detection device can be contacted with the reductive odor gas in the cooking cavity 112. When the gas-sensitive detection device is in contact with the reducing gas, the concentration of the reducing gas with peculiar smell in the cooking cavity 112 is detected according to the characteristic of device resistance change caused by the reaction or adsorption of the gas-sensitive detection device and the reducing gas. On the one hand, need not to open the door and can detect or monitor reducing gas's concentration through the inside gas-sensitive detection device of cooking utensil 100, be favorable to the user to accurately learn the content of reducing peculiar smell gas in culinary art chamber 112, avoid the user to rely on the error that subjective judgement cavity cleanliness factor caused for it is more objective, rigorous and scientific to reducing peculiar smell gas's detection. On the other hand, the user can clean the cooking appliance 100 in time, so that the cooking safety of food materials and the physical health of the user are guaranteed. In another aspect, the cleaned cooking cavity 112 can be verified by detecting the concentration of the odor reducing gas, so as to determine whether the cleaning operation of the cooking cavity 112 has satisfied the cleaning requirement of the user, which is beneficial to troubleshooting the malfunction of the cleaning device in the cooking appliance 100.
Wherein the reducing gas comprises trimethylamine, ammonia, hydrogen sulfide, thioether, mercaptan, etc.
It should be noted that, the gas-sensitive detection device may be located inside the cooking cavity 112, or may be located in an accommodating cavity communicated with the cooking cavity 112, so that it is only necessary to ensure that a part of the gas-sensitive detection device is exposed to the reducing gas in the cooking cavity 112. Further, a blocking piece is arranged between the accommodating cavity and the cooking cavity 112, and the blocking piece can be opened periodically or in response to a detection instruction of a user to the cooking appliance 100, so that the accommodating cavity is communicated with the cooking cavity 112, and the problem that the service life of the gas-sensitive detection device is shortened when the gas-sensitive detection device is in reducing gas for a long time is solved.
Specifically, cooking appliance 100 includes an oven, a microwave oven, a steam box, a light wave oven, a soymilk maker, an air fryer, or the like.
Example 2:
as shown in fig. 1, according to an embodiment of the invention, comprising the features defined in any of the above embodiments, and further: the gas sensing apparatus includes a gas sensor 120 and a processor (not shown in the figure).
In detail, the gas sensor 120 is capable of performing a reduction reaction or an adsorption effect with a reducing gas. A processor is electrically connected to the gas sensor, the processor being configured to determine the concentration of the reducing gas based on the voltage of the gas sensor 120.
In this embodiment, the gas sensor 120 is electrically connected to the processor, and when the gas sensor 120 performs a reduction reaction with or adsorbs a reducing gas having an odor, the resistance value of the gas sensor 120 changes, and the change in the resistance value causes a change in the voltage partial pressure of the gas sensor 120 in the circuit. The processor can read the voltage magnitude across the gas sensor 120 and determine the corresponding concentration of the reducing gas from the read voltage. Therefore, reliable basis can be provided for the user to sense the cleaning degree of the cooking cavity 112 by utilizing the concentration of the reducing gas, the user can clean the cooking appliance 100 in time, the use experience of the user is improved, and the cooking safety of food materials and the physical health of the user are guaranteed.
Further, the gas sensor 120 includes a tin oxide element. The tin oxide element has high selectivity and sensitivity and short response recovery time to the reducing gas, so that whether the reducing gas exists can be detected in a plurality of mixed gases, and the concentration of the reducing gas can be accurately detected by means of the conductivity change before and after the tin oxide element is contacted with the reducing gas. And tin oxide component stability is higher for the influence that the high temperature that produces when cooking led to the fact the tin oxide component is less, enlarges the realization condition that the peculiar smell detected, promotes cooking utensil 100's reliability.
Specifically, the tin oxide element comprises a base layer and a tin oxide layer, wherein the base layer is an aluminum oxide substrate or other kinds of ceramic substrates.
It is understood that the tin oxide layer may be prepared from pure tin oxide, or may be prepared from doped or composite modified tin oxide.
It is worth mentioning that the number of the gas sensors 120 may be set as one or more, and a plurality of the gas sensors 120 are distributed at different positions in the cooking cavity 112. When the concentration of the reducing gas needs to be detected, the voltages of the gas sensitive elements 120 at different positions are obtained, the concentrations of the reducing gas corresponding to the voltages are determined, the average value of the obtained concentration values of the reducing gas is calculated, and the final target concentration is determined. Therefore, limitation and error of single detection are avoided, influence of accidental abnormal detection data on the whole detection result is weakened, and concentration detection accuracy is improved.
Example 3:
as shown in fig. 1, according to an embodiment of the invention, comprising the features defined in any of the above embodiments, and further: the cooking appliance 100 further comprises a prompting device 130.
Specifically, the presentation device is disposed in the casing 110, the presentation device 130 is electrically connected to the gas sensor, and the presentation device 130 is configured to output presentation information corresponding to the concentration of the reducing gas.
In this embodiment, the cooking appliance 100 is further provided with a prompting device 130, and the prompting device 130 is electrically connected with the gas-sensitive detection device. After the gas-sensitive detection device determines the concentration of the reducing gas in the cooking cavity 112, the processor of the gas-sensitive detection device can control the prompt device 130 to output prompt information related to the concentration of the reducing gas to remind the user of the concentration of the reducing gas detected at this time, and the user can know whether the cavity is filled with the peculiar smell or not according to the prompt information without opening the door, and can judge whether the cooking cavity 112 needs to be cleaned according to the prompt information. And then improve user's use experience, ensure user's healthy.
Specifically, when the processor detects that the concentration of the reducing gas is greater than or equal to the preset first concentration threshold, which indicates that the odorous gas exists in the cooking cavity 112, at this time, the processor sends a start instruction containing the concentration of the reducing gas to the prompting device 130, and the prompting device 130 outputs corresponding prompting information according to the start instruction.
Further, the prompting device 130 includes at least one of the following: pilot lamp, display screen, audio player. For example, the concentration of the reducing gas is displayed by changing the color, brightness, and flashing frequency of the indicator light, and the indicator light has a simple structure, low cost, and small space occupation, and is advantageous for the miniaturization of the cooking appliance 100. The display screen can display the concentration of the reducing gas, the cleaning level of the cooking cavity 112 and other contents in the form of images, videos or characters, so that the prompt information is more visual and clear, and the user can perceive the prompt information conveniently. The concentration of the reducing gas is prompted to the user in the form of voice or music through the audio player, so that the user far away from the cooking appliance 100 can also know the condition of the reducing gas in the cooking cavity 112 in time, and the use experience of the user is improved.
It is worth mentioning that the visual prompting device 130 such as an indicator light, a display screen, etc. may be installed on a side of the housing 110 facing away from the cooking cavity 112, that is, the prompting device 130 is installed on an outer wall surface of the cooking appliance 100 for the user to observe.
Example 4:
as shown in fig. 1, according to an embodiment of the invention, comprising the features defined in any of the above embodiments, and further: the cooking appliance 100 further includes a door 140.
In detail, the door body 140 is connected to the case 110. At least a portion of the gas sensing device is located on a side of the cooking chamber 112 away from the door 140.
In this embodiment, the door 140 is rotatably connected to the housing 110, and the door 140 assembly can open or close the cooking chamber 112. Further, in consideration of the fact that after the door body 140 is opened or at the door gap, the odor gas in the cooking cavity 112 can exchange with the air outside the housing 110, thereby causing a detection error. Therefore, the part of the gas-sensitive detection device exposed in the reducing gas can be arranged on one side of the cooking cavity 112 far away from the door body 140, that is, the gas-sensitive element 120 of the gas-sensitive detection device is arranged at a position far away from the door body 140 as far as possible, so that the interference of opening and closing the door on the data collected by the gas-sensitive detection device is avoided, and the accuracy of the gas-sensitive detection device in detecting the reducing gas is improved.
Example 5:
according to an embodiment of the invention, including the features defined in any of the above embodiments, and further: the cooking appliance further comprises a cleaning device.
In detail, the cleaning device is provided in the casing, and the cleaning device is used for removing the reducing gas.
In this embodiment, cooking utensil still is provided with cleaning device, can clear away the bacterium of reducing gas and/or culinary art intracavity through cleaning device to guarantee the cleanliness of culinary art chamber, be favorable to promoting the culinary art quality and the security of eating the material, guarantee that the user is healthy.
Specifically, cleaning device can open in response to user's clean instruction, also can be connected with gas-sensitive detection device's treater electricity, when the treater detects that reducing gas's concentration is greater than or equal to predetermined second concentration threshold value, it is great to explain the intracavity reducing gas content of cooking, can produce great peculiar smell, be unfavorable for eating the material culinary art, then processing control cleaning device begins work, with the reducing gas exhaust casing outside in the culinary art intracavity, thereby realize the self-cleaning function in culinary art chamber, be favorable to keeping the cleanliness in culinary art chamber, simplify user operation, promote user's use experience.
Further, the cleaning device comprises at least one of: exhaust subassembly, microwave subassembly, ozone generator, adsorption component. Wherein, exhaust subassembly and cooking chamber intercommunication, when receiving the clean instruction of cooking chamber, exhaust subassembly extracts the gas in the cooking chamber, perhaps fills the cooking intracavity with outside air to make the gas in the cooking chamber discharge cooking utensil. The heat energy generated by the microwave emitted by the microwave assembly kills microorganisms, thereby inhibiting the generation of odor gas. The ozone generator is communicated with the cooking cavity, and the sterilization and deodorization work is carried out through the ozone generated by the ozone generator. The adsorption piece is arranged in the cooking cavity and used for adsorbing peculiar smell gas in air flowing through the adsorption piece so as to remove peculiar smell in the cooking cavity.
It can be understood that if the cooking appliance is a microwave oven, the microwave assembly for cooking in the microwave oven can be used as a cleaning device, the microwave sterilization and smell removal functions are realized by controlling the working parameters of the microwave assembly, and the microwave assembly for cleaning the cooking cavity does not need to be separately arranged. The exhaust assembly can be an electric fan, and a plurality of electric fans are arranged in a dispersing mode to drive air in the cooking cavity to flow, so that air exhaust is promoted, and air in the cooking cavity can be uniformly distributed.
In addition, if cleaning device is for adsorbing the subassembly, then can also cooperate to set up and take off the annex, through desorption piece desorption or the adsorbed peculiar smell gas of oxidation adsorption piece to make the adsorption element resume adsorption efficiency again, for example heating member etc..
Example 6:
as shown in fig. 2, according to an embodiment of the present invention, there is provided a control method for a cooking appliance according to an embodiment of the first aspect, the method including:
and step 204, outputting prompt information according to the concentration of the reducing gas.
In the embodiment, after the cooking appliance is powered on, the concentration of the reducing gas in the cooking cavity of the cooking appliance is detected, and prompt information is output according to the obtained concentration of the reducing gas to prompt a user whether the reducing gas with peculiar smell and the content of the reducing gas exist in the current cooking cavity or not. On the one hand, need not to open the culinary art chamber and can detect or monitor reducing gas's concentration, be favorable to the user to know the content of the interior reducing peculiar smell gas of culinary art chamber accurately, avoid the user to rely on the error that subjective judgement cavity cleanliness factor caused for it is more objective, rigorous and scientific to reducing peculiar smell gas's detection. On the other hand, the user can clean the cooking appliance in time, and food cooking safety and body health of the user are guaranteed. In another aspect, the cleaned cooking cavity can be verified, so that whether the cleaning operation of the cooking cavity meets the cleaning requirement of a user or not is judged, and the problem of failure of a cleaning device in the cooking appliance is solved.
Specifically, after the cooking appliance is powered on, the reducing gas in the cooking cavity can be automatically and periodically detected according to the preset time interval, the detecting operation of the reducing gas can be executed in response to the detecting instruction given by the user, and the detecting operation of the reducing gas can be executed after the cleaning device is detected to finish cleaning the cooking cavity.
Example 7:
as shown in fig. 3, according to an embodiment of the present invention, there is provided a control method for a cooking appliance according to an embodiment of the first aspect, the method including:
and 308, controlling the prompting device to output prompting information according to the prompting parameters.
In this embodiment, the cooking appliance is provided with a prompting device for outputting prompting information. And comparing the magnitude relation between the concentration of the reducing gas and the first concentration threshold value, and indicating that the peculiar smell exists in the cooking cavity when the concentration of the reducing gas is detected to be greater than or equal to the first concentration threshold value. At the moment, the prompt parameter corresponding to the concentration is searched in the corresponding relation between the preset concentration and the preset prompt parameter, and the prompt device is controlled to output prompt information related to the concentration of the reducing gas according to the prompt parameter. Thereby show the user with different concentration with different prompt information, make the user can be more directly perceived, the accurate content of learning culinary art intracavity reducing gas to in the user formulates the culinary art plan, the user can in time carry out cleaning operation to cooking utensil through prompt information in addition, promotes cooking utensil's convenience.
Further, considering that the speed of bacteria breeding and the peculiar smell generating conditions are greatly different in different environment temperature scenes, the environment temperature of the control where the cooking appliance is located is obtained before the concentration of the reducing gas is compared with the first concentration threshold, and the first concentration threshold is determined according to the environment temperature.
It should be noted that the prompt parameter includes at least one of the following: the color of the indicator light, the flashing frequency of the indicator light, the brightness value of the indicator light, the display content of the display screen and the audio data of the audio player.
In this embodiment, different indication parameters may be configured for different concentrations of the reducing gas. The prompting parameters comprise one or more of color of the indicator light, flashing frequency of the indicator light, brightness value of the indicator light, display content of the display screen and audio data of the audio player. For example, when the concentration of the reducing gas is 1.5%, the color of the indicator light is red, and 1.5% of the indicator light plays a voice prompt with the concentration of the reducing gas being 1.5% through the audio player; when the concentration of the reducing gas is 0.3%, the color of the indicator light is green; when the concentration of the reducing gas is 0, the brightness value of the indicator lamp is 0, that is, the indicator lamp is not on.
Example 8:
as shown in fig. 4, according to an embodiment of the present invention, there is provided a control method for a cooking appliance according to an embodiment of the first aspect, the method including:
and 414, controlling the cleaning device to remove the reducing gas according to the working parameters.
In this embodiment, the cooking appliance is provided with a cleaning device for removing the reducing gas. And comparing the magnitude relation between the concentration of the reducing gas and the second concentration threshold, when the concentration of the reducing gas is detected to be greater than or equal to the second concentration threshold, indicating that the content of the reducing gas in the cooking cavity is large, generating large peculiar smell, being not beneficial to cooking food materials, setting the required working parameters of the cleaning device according to the detected concentration of the reducing gas, and controlling the cleaning device to work according to the working parameters. Thereby realize the self-cleaning function in culinary art chamber, be favorable to keeping the cleanliness in culinary art chamber, simplify user operation, promote user's use and experience.
The operating parameters include the operating power and operating time of the cleaning device, among others.
Specifically, the second concentration threshold is greater than or equal to the first concentration threshold. The first concentration threshold and the second concentration threshold can be set reasonably according to the bearing capacity of a user for the reducing gas. For example, if the user needs to monitor the change in the concentration of the reducing gas, the first concentration threshold may be set to a smaller value, and if the user needs to remind that the odor is strong, the first concentration threshold may be set to a larger value.
Example 9:
as shown in fig. 5, according to an embodiment of the present invention, there is provided a control method for a cooking appliance according to an embodiment of the first aspect, the method including:
step 510, correcting a first concentration threshold value and a second concentration threshold value according to the concentration compensation amount;
step 518, if the concentration is greater than or equal to the second concentration threshold, if yes, go to step 520, if no, go to step 502;
and 522, controlling the cleaning device to remove the reducing gas according to the working parameters.
In this embodiment, after the door is opened, the gas in the cooking cavity can be exhausted from the cooking appliance, so that the reducing gas in the cooking cavity is gradually reduced, and if the same concentration threshold value as that when the door is closed is still adopted as a judgment basis for prompting or cleaning operation, the possibility that the prompting device and the cleaning device do not work is existed. Moreover, the prompt device and the cleaning device are easy to be repeatedly switched on and off due to the instability of the gas flow, and the service life is further shortened. Therefore, when the door body is detected to be in the opening state, the gas flow after the gas door body is opened is determined according to the opening degree of the door body, and the concentration compensation quantity corresponding to the opening degree of the door body is searched in the corresponding relation between the preset gas flow and the preset concentration compensation quantity according to the gas flow. And increasing the first concentration threshold value and/or the second concentration threshold value according to the concentration compensation amount, thereby preventing prompting or cleaning misjudgment caused by opening the door body.
Example 10:
as shown in fig. 6, according to an embodiment of the present invention, there is provided a control method for a cooking appliance according to an embodiment of the first aspect, the method including:
and step 612, controlling the prompting device to output prompting information according to the prompting parameters.
In this embodiment, it is considered that the gas in the cooking cavity is exhausted from the cooking utensil after the door body is opened, that is, the reducing gas is in a gradually reduced state. Therefore, the corresponding relation between the proper preset concentration and the preset prompt parameter can be adjusted according to the opening degree of the door body. Therefore, the prompt mode is dynamically adjusted under different scenes, and a reliable basis is provided for a user to judge the cleanness degree of the cooking cavity.
Specifically, in the corresponding relationship between the multiple groups of preset concentrations and the preset prompt parameters, the larger the opening degree of the door body is, the smaller the preset concentration corresponding to the preset prompt parameters is. For example, when the door body is closed, that is, the opening degree is 0, the corresponding relationship between the corresponding preset concentration and the preset prompt parameter indicates that the prompt parameter corresponding to the concentration of the reducing gas of 3% is that the indicator lamp is set to red to indicate that the current concentration is high, cleaning is recommended, and the prompt parameter corresponding to the concentration of the reducing gas of 2% is that the indicator lamp is set to yellow to indicate that the current concentration is moderate, and cleaning may not be performed; the prompt parameter corresponding to the concentration of the reducing gas being 1% is set to be green for the indicator lamp so as to indicate that the current concentration is low and cleaning is not needed. When the door body is opened completely, that is to say when the aperture is 100%, the corresponding relation between corresponding preset concentration and the preset prompt parameter has instructed, and the prompt parameter that the concentration of reducing gas is 4.5% and corresponds sets up red for the pilot lamp, and the prompt parameter that the concentration of reducing gas is 3% and corresponds sets up yellow for the pilot lamp, and the prompt parameter that the concentration of reducing gas is 1.5% and corresponds sets up green for the pilot lamp.
Example 11:
as shown in fig. 7, according to an embodiment of the present invention, there is provided a control method for a cooking appliance according to an embodiment of the first aspect, the method including:
and step 706, outputting prompt information according to the concentration of the reducing gas.
In this embodiment, when the gas sensor is in contact with a reducing gas having an odor, a reduction reaction or an adsorption effect occurs, and the resistance value of the gas sensor changes, which results in a change in the voltage partial pressure of the gas sensor in the circuit. And obtaining the voltage at two sides of the gas sensitive element, comparing the voltage with a preset voltage, and when the voltage belongs to the preset voltage, taking the preset concentration corresponding to the preset voltage as the reducing gas concentration corresponding to the voltage of the gas sensitive element. Thereby can utilize reducing gas's concentration to provide reliable foundation for user's perception culinary art chamber cleanness degree, the user can in time clean cooking utensil, not only improves user's use and experiences, has still ensured eating material culinary art security and user's healthy.
Specifically, the gas sensitive element is placed in a reducing gas scene with different preset concentrations in advance, voltages corresponding to the different preset concentrations are collected to serve as preset voltages, and a corresponding relation between the preset voltages and the preset concentrations is established.
Example 12:
as shown in fig. 1, according to an embodiment of the present invention, there is provided a tin oxide element-based odor-dominant microwave oven including: tin oxide gas sensor (gas sensor), main control chip (processor) and pilot lamp.
In detail, as shown in fig. 9, the main control chip of the microwave oven controls the on/off of the indicator light odor purification module according to the data sent by the tin oxide gas sensor. The tin oxide gas sensor comprises a tin oxide element and a digital-to-analog converter, and the main control chip can compensate the original signal output by the tin oxide gas sensor through a microwave oven door opening and closing signal to obtain an accurate odor grade, so that the odor detection precision is improved. The tin oxide element is mainly divided into two layers, wherein the lower layer is an aluminum oxide substrate, the upper layer is tin oxide, and the tin oxide reacts with reductive odor gas in the air when in use. When installing the tin oxide gas sensor, as shown in fig. 1, it should be noted that the tin oxide gas sensor should be installed at a position far away from the door as much as possible to avoid the door opening and closing to generate a large interference on the data collected by the tin oxide gas sensor, and that side of the tin oxide should be installed at the outside so as to be sufficiently contacted with the gas.
In this embodiment, as shown in fig. 8, a large amount of bacteria and reductive odor gas are generated in the cooking cavity due to untimely cleaning or food residues, the reductive odor gas and the tin oxide element undergo a reduction reaction, the resistance of the tin oxide element will be reduced, the voltage division of the tin oxide element in the circuit is reduced due to the reduction of the resistance, and the main control chip reads the voltage through the input port of the chip. When the voltage reaches a voltage threshold value set in the program, namely the concentration of the reductive odor gas reaches a first concentration threshold value, the main control chip changes the color of the indicator lamp by controlling the indicator lamp, a user who obtains a prompt can start the microwave sterilization and deodorization function in a key mode, and the main control chip controls the on-off of the microwave relay to finish the sterilization and deodorization effects. Therefore, through the tin oxide gas sensor, the typical reductive odor content such as trimethylamine, ammonia, hydrogen sulfide, thioether, mercaptan and the like in the cavity of the microwave oven is monitored, the content of odor gas is shown through the color change of the indicator lamp in a dominant mode, under the condition that the door is not opened, the user is helped to judge the cleaning degree in the cavity, when a large number of bacteria and odor gas exist in the cavity, the effect of reminding the user to start microwaves for sterilization and deodorization is achieved, compared with the original situation that the user only relies on the subjectivity, the cleaning degree of the cavity is judged, and the method is more objective, rigorous and scientific, and the body health of the user is guaranteed.
Example 13:
according to an embodiment of the third aspect of the present invention, a readable storage medium is proposed, on which a program or instructions are stored, which when executed by a processor performs the control method proposed by the embodiment of the second aspect. Therefore, the readable storage medium has all the advantages of the control method provided in the embodiment of the second aspect, and redundant description is omitted to avoid repetition.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or integral connections; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. A cooking appliance, comprising:
a housing provided with a cooking cavity;
and the gas-sensitive detection device is arranged on the shell and is used for detecting the concentration of the reducing gas in the cooking cavity.
2. The cooking appliance of claim 1, wherein the gas sensitive detection device comprises:
a gas sensor;
and the processor is electrically connected with the gas sensor and is used for determining the concentration of the reducing gas according to the voltage of the gas sensor.
3. The cooking appliance of claim 2,
the gas sensor includes a tin oxide sensor.
4. The cooking appliance of claim 1, further comprising:
and the prompting device is arranged on the shell and electrically connected with the gas-sensitive detection device, and is used for outputting prompting information corresponding to the concentration of the reducing gas.
5. The cooking appliance of claim 4,
the prompting device comprises at least one of the following components: pilot lamp, display screen, audio player.
6. The cooking appliance according to any one of claims 1 to 5, further comprising:
the door body is connected with the shell;
at least one part of the gas-sensitive detection device is positioned on one side of the cooking cavity far away from the door body.
7. The cooking appliance according to any one of claims 1 to 5, further comprising:
and the cleaning device is arranged on the shell and used for removing the reducing gas.
8. The cooking appliance of claim 7,
the cleaning device comprises at least one of: exhaust subassembly, microwave subassembly, ozone generator, adsorption component.
9. A control method for a cooking appliance according to any one of claims 1 to 8, characterized in that it comprises:
detecting the concentration of reducing gas in a cooking cavity of the cooking appliance;
and outputting prompt information according to the concentration.
10. The control method according to claim 9, wherein the cooking appliance includes a prompting device, and the outputting of the prompting information according to the concentration includes:
determining a prompt parameter corresponding to the concentration according to a corresponding relation between a preset concentration and a preset prompt parameter on the basis that the concentration is greater than or equal to a first concentration threshold;
and controlling the prompting device to output the prompting information according to the prompting parameters.
11. The control method according to claim 10,
the prompt parameters include at least one of: the color of the indicator light, the flashing frequency of the indicator light, the brightness value of the indicator light, the display content of the display screen and the audio data of the audio player.
12. The control method according to claim 10, wherein the cooking appliance includes a door body, the control method further comprising:
acquiring the opening degree of the door body;
and determining the corresponding relation between the preset concentration and the preset prompt parameter according to the opening.
13. The control method according to any one of claims 9 to 12, wherein the cooking appliance includes a cleaning device, the control method further comprising:
determining an operating parameter of the cleaning device as a function of the concentration based on the concentration being greater than or equal to a second concentration threshold;
and controlling the cleaning device to remove the reducing gas according to the working parameters.
14. The method according to any one of claims 9 to 12, wherein the cooking appliance comprises a gas sensor, and the detecting the concentration of the reducing gas in the cooking cavity of the cooking appliance comprises:
acquiring the voltage of the gas sensor;
and determining the concentration corresponding to the voltage according to the corresponding relation between the preset voltage and the preset concentration.
15. A readable storage medium on which a program or instructions are stored, characterized in that the program or instructions, when executed by a processor, perform the control method according to any one of claims 9 to 14.
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