CN112984570A - Stove, and control method and control device for preventing dry burning of stove - Google Patents

Abstract

The application relates to cooking utensils technical field discloses a cooking utensils, includes: a contact part disposed on the cooktop; and the conductive detection device is arranged on the contact part, is arranged to be in contact with a pot placed on the cooker and is used for detecting the conductivity of the pot. Thereby confirm the pan material through electrically conductive detection device detects the electric conductivity of pan, the temperature threshold value that the material that can the pan confirmed control cooking utensils stop heating, when the temperature of pan was greater than this threshold value, control cooking utensils stop heating in order to prevent to appear the dry combustion method problem. Because the cookers made of different materials have different dry burning prevention threshold values, the accurate dry burning prevention of the cookers made of different materials is realized, the judgment method is simplified, and the false judgment rate of the dry burning prevention is effectively reduced. The application also discloses a control method and a control device for preventing dry burning of the kitchen range.

Description

Stove, and control method and control device for preventing dry burning of stove

Technical Field

The application relates to the technical field of cookers, for example to a cooker, a control method and a control device for preventing dry burning of the cooker.

Background

The dry heating refers to heating an empty pot for a long time, the pot is dried and burnt due to overlong heating time, the safety hazard that the pot is often found in a kitchen is caused, the pot is discolored and deformed due to the dry heating, and a fire disaster can be caused in serious cases. At present, the common dry burning prevention function in the household cooker realizes the dry burning prevention control on the cooker by automatically closing the cooker when the cooker reaches a set threshold value, and plays a role in protecting the cooker.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the related art, the dry burning is judged to occur when the temperature of the pot bottom is higher than a preset single temperature threshold value through comparison with the preset single temperature threshold value, the applicability to metal pots with good heat conductivity is good, and for pots with poor heat conductivity, such as marmite or ceramic pot, the error is large when the temperature of the pot bottom is obtained due to poor heat conductivity, so that the dry burning prevention control is not suitable for being carried out only through the temperature.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a stove, and a control method and a control device for preventing dry burning of the stove, so as to solve the technical problems that in the related art, when dry burning prevention control is performed on a nonmetal pot only through temperature conditions, the error is large, and the dry burning prevention effect is limited.

In some embodiments, a cooktop includes a contact disposed on the cooktop; and the conductive detection device is arranged on the contact part, is arranged to be in contact with a pot placed on the cooker and is used for detecting the conductivity of the pot.

In some embodiments, the control method for preventing dry burning of the cooker comprises the following steps: detecting the conductivity of the cookware, and determining a temperature threshold value according to a conductive detection result; when the temperature of the cooker is greater than the temperature threshold value, controlling the cooker to stop heating; wherein, the detection result has corresponding relation with the material of pan.

In some embodiments, the control device for preventing dry-burning of the cooking range comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the control method when executing the program instructions.

The stove, the control method and the control device for preventing dry burning of the stove provided by the embodiment of the disclosure can realize the following technical effects:

through set up contact site and electrically conductive detection device on cooking utensils, detect the electrically conductive condition of placing the pan that adds at cooking utensils to confirm the material of pan, and confirm the temperature threshold value that control cooking utensils stop heating according to the material of pan, when the temperature of pan is greater than this threshold value, control cooking utensils stop heating in order to prevent to appear dry and burn the problem. Because the cookers made of different materials have different dry burning prevention threshold values, the accurate dry burning prevention of the cookers made of different materials is realized, the judgment method is simplified, and the false judgment rate of the dry burning prevention is effectively reduced.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic structural view of a cooktop provided by an embodiment of the present disclosure;

FIG. 2 is a schematic view of a part of a cooker provided by the embodiment of the disclosure;

FIG. 3 is a schematic view of a part of a cooker provided by the embodiment of the disclosure;

FIG. 4 is a schematic view of a part of a cooker provided by the embodiment of the disclosure;

FIG. 5 is a schematic diagram of a control method for preventing dry burning of a cooker according to an embodiment of the disclosure;

FIG. 6 is a schematic diagram of another control method for preventing dry burning of a cooker provided by the embodiment of the disclosure;

fig. 7 is a schematic diagram of a control device for preventing dry burning of a cooker according to an embodiment of the disclosure;

fig. 8 is a schematic view of another control device for preventing dry burning of a cooker provided by the embodiment of the disclosure;

fig. 9 is a schematic view of another control device for preventing dry burning of a cooker provided by the embodiment of the disclosure.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The embodiment of the disclosure provides a cooker, as shown in fig. 1, comprising a contact part 1 arranged on the cooker; and a conductive detection device 2 disposed at the contact portion 1 and configured to contact a pot placed on the cooker for detecting conductivity of the pot.

Through set up the contact site 1 that has electrically conductive detection device 2 on cooking utensils, at the in-process of cooking utensils and pan contact, can detect the material of pan through electrically conductive detection device 2 to make cooking utensils can set for corresponding anti-dry combustion method procedure according to the material of pan and confirm the condition that control cooking utensils stop heating, when the temperature information of pan satisfies the condition, control cooking utensils stop heating in order to prevent to appear the problem of dry combustion method. Because the cookers made of different materials have different dry burning prevention threshold values, the accurate dry burning prevention of the cookers made of different materials is realized, the judgment method is simplified, and the false judgment rate of the dry burning prevention is effectively reduced.

Here, the contact portion 1 may be a part of the structure of the cooker which contacts with a pot, such as a burner, a fire cover, etc., or a part which is detachably connected with the cooker, such as a stove rack, a pot rack bracket, etc. The conductive detection device 2 is arranged on the contact part 1, and the conductive performance of the cookware, such as the feedback current strength, is detected in the contact process with the cookware, and compared with a preset value, so as to distinguish the material of the cookware. The electric conduction detection device 2 can comprise a power supply and a display screen, and can be electrified and displayed through the power supply and the display screen of the stove.

Alternatively, as shown in fig. 2, the conduction detecting apparatus 2 includes an electrode contact 12. And the electrode contact 12 is used for carrying out contact type conductive detection on the cookware, and distinguishing the material of the cookware according to the intensity of feedback current by contacting the positive electrode contact and the negative electrode contact with the cookware to be detected. Alternatively, the number of electrode contacts 12 may be 2 or a multiple thereof. Alternatively, the electrode contacts 12 may include a pair of short electrode contacts, respectively an anode short electrode contact and a cathode short electrode contact; and/or a pair of long electrode contacts, namely a positive electrode long electrode contact and a negative electrode long electrode contact, can detect cookers with different pot bottom shapes and angles. When the intensity of the feedback current is within the first current intensity interval, determining that the pot is made of metal; and when the intensity of the feedback current is outside the first current intensity interval, determining that the pot is made of a non-metal material. Optionally, the contact portion 1 comprises a cooking range of a cooking appliance; the optional contact part 1 includes an outer fire cover 11 of the cooking top. The electrode contacts 12 are arranged at the cooking range position of the stove, for example, distributed on the outer periphery side of the outer fire cover 11; optionally, a plurality of electrode contacts 12 are uniformly distributed on the outer periphery of the outer fire cover 11, so that the conductive performance of the cookware can be stably tested, and the material of the cookware can be determined.

Alternatively, as shown in fig. 3, the contact part 1 includes a pot holder 21. The pot frame 21 can be fixedly arranged on the cooking range and also can be detachably connected with the cooking range, and a pot can be placed above the pot frame 21. Optionally, the pot holder 21 is provided with the electrode contact 12. The electrode contact 12 can be arranged around the pot holder 21, or on the support of the pot holder 21, and extends out of the upper surface thereof to contact with a pot for detection. Optionally, the pot holder 21 is provided with the conductive partition strip 22, so that a loop can be formed with the bottom of the pot, and the material of the pot can be distinguished according to the feedback current intensity of the conductive partition strip 22. So, because pot frame 21 and pan inevitably produce the contact, through set up electrically conductive detection device 2 on pot frame 21, can be with the in-process of pan contact, detect the material of pan to make cooking utensils can set for corresponding anti-dry combustion method procedure according to the material of pan and stop the condition of heating with the definite control cooking utensils of confirming, when the temperature information of pan satisfies the condition, control cooking utensils stop heating in order to prevent to appear the problem of dry combustion method. Because the cookers made of different materials have different dry burning prevention threshold values, the accurate dry burning prevention of the cookers made of different materials is realized, the judgment method is simplified, and the false judgment rate of the dry burning prevention is effectively reduced.

Alternatively, as shown in fig. 4, the contact portion 1 includes a temperature sensor 31 of the cooktop; the conduction detecting unit 2 includes a metal rod 32 connected to the temperature sensor 31. In a common kitchen range with an anti-dry heating function, a temperature sensor 31 is arranged at a kitchen range head and used for detecting the temperature of a pot bottom so as to perform anti-dry heating intervention. Here, a metal rod 32 is provided on the conventional temperature sensor 31, a loop is formed by the temperature sensor 31, the pan bottom and the metal rod 32, and the material of the pan is distinguished according to the intensity of the feedback current of the metal rod 32. Therefore, a loop is formed by the temperature sensing side where the temperature sensor 31 is located, the bottom of the cooker and the newly-added metal rod 32, the material of the cooker is detected in the contact process of the cooker, so that the cooker can set a corresponding anti-dry-burning program according to the material of the cooker to determine the condition for controlling the cooker to stop heating, and when the temperature information of the cooker meets the condition, the cooker is controlled to stop heating to prevent the dry-burning problem. Because the cookers made of different materials have different dry burning prevention threshold values, the accurate dry burning prevention of the cookers made of different materials is realized, the judgment method is simplified, and the false judgment rate of the dry burning prevention is effectively reduced.

The embodiment of the present disclosure provides a control method for preventing dry burning of the above-mentioned cooking stove, as shown in fig. 5, including:

step S100, detecting the conductivity of the cookware, and determining a temperature threshold value according to a conductive detection result; the detection result and the material of the pot have a corresponding relation.

Here, detecting the conductivity of the cookware means that the conductivity of the cookware is detected when the conductive detection device arranged on the contact part of the cookware is in contact with the cookware, and the conductivity is different according to the material of the cookware, so that the conductive detection result is related to the material of the cookware; and determining a temperature threshold value for preventing dry burning according to the detection result. The temperature threshold is used for representing the maximum temperature critical value of the temperature range which can maintain the better using state of the cookware in the cooking process, and cookware made of different materials has different threshold setting ranges, so that the value of the threshold and the material of the cookware have a corresponding relation.

And S110, controlling the cooker to stop heating when the temperature of the cooker is greater than the temperature threshold value.

The temperature information of the cookware can comprise the temperature of the bottom of the cookware, the heating rate of the temperature information based on the temperature and time change relation, and the change rate of the heating rate, wherein the temperature parameter can be obtained through a temperature detection device arranged at the cooking range or the bottom of the cookware, and the time parameter can be obtained through a timer arranged on the cooker or the cookware. Through the temperature that acquires the pan, when the temperature of pan, for example bottom of a boiler temperature, is greater than this temperature threshold value, the pan has the risk of doing away with heat, controls cooking utensils stop heating this moment, has realized preventing the dry combustion method to the accuracy of pan.

By adopting the control method for preventing dry burning of the cooker, which is provided by the embodiment of the disclosure, the contact part and the conductive detection device are arranged on the cooker, the conductive condition of the cooker arranged on the cooker is detected, so that the material of the cooker is determined, the heating stop temperature threshold of the cooker is determined and controlled according to the material of the cooker, and when the temperature of the cooker is higher than the temperature threshold, the cooker is controlled to stop heating to prevent the dry burning problem. Because the cookers made of different materials have different thresholds for preventing dry burning, the cookers made of different materials can accurately prevent dry burning, the judgment method is simplified, and the false judgment rate of the dry burning prevention is effectively reduced.

In some embodiments, determining the temperature threshold from the conduction detection result comprises: determining the material of the cookware according to the conductive detection result; and determining the threshold value according to the material of the cookware. After confirming the pan material according to electrically conductive testing result, can confirm the threshold value numerical value that corresponds according to the material. The pan of different materials has different electric conductive property, can distinguish different pan materials according to the current strength that electrically conducts the detection and acquires.

Optionally, confirm according to electrically conductive testing result the material of pan includes: when the feedback current intensity of the conduction detection result is within a first current intensity interval, the cookware is made of a metal material; or when the feedback current intensity of the conductive detection result is within a second current intensity interval, the cookware is made of a non-metal material. Therefore, when the conductive detection device is used for conducting detection on the cookware, the material of the cookware can be determined according to the detection result, and when the detection result is not in the first current intensity interval or the second current intensity interval, the cookware material is taken as the default material of the system, so that dry burning prevention of cookware made of different materials is realized. In this embodiment, the first current intensity interval refers to a critical range of the feedback current intensity in the detection result when the conductive property of the metal material is detected. The second current intensity interval refers to a critical range of the feedback current intensity in the detection result when the non-metallic material is used for detecting the conductivity. According to the properties of the metal and the nonmetal material, the current intensity corresponding to the first current intensity interval is higher than the current intensity corresponding to the second current intensity interval. Optionally, only determining whether the feedback current intensity is within a first current intensity interval according to the conduction detection result, and determining that the cookware is made of a metal material when the feedback current intensity is within the first current intensity interval; when the pot is not within the first current intensity interval, deducing that the pot is made of non-metal materials. In other embodiments of the present application, it may also be determined whether the feedback current intensity is within the second current intensity interval according to the conductive detection result, and the cookware material outside the interval is inferred to be a metal material according to the detection result.

Optionally, confirm according to electrically conductive testing result the material of pan includes: when the feedback current intensity of the conduction detection result is within a first current intensity interval, the cookware is made of a metal material; and when the feedback current intensity of the conductive detection result is within the second current intensity interval, the cookware is made of a non-metal material. So, realize according to the electrically conductive testing result of difference, confirm different pan materials, realize preventing dry combustion method to different material pans.

In some embodiments, the determining the threshold according to the material of the pot includes: when the pot is made of metal, the threshold value is a first set value; or when the pot is made of non-metal materials, the threshold value is a second set value; wherein the first set value is smaller than the second set value. Therefore, when the threshold value is determined according to the material of the cookware, the dry burning prevention of the single cookware material is realized, and cookware made of other materials can be set with the default threshold value to prevent the dry burning.

Optionally, the material according to the pan confirms the threshold value includes: when the pot is made of metal, the threshold value is a first set value; when the pot is made of non-metal materials, the threshold value is a second set value; wherein the first set value is smaller than the second set value. So, when confirming the threshold value according to the material of pan, can realize carrying out the settlement of preventing dry combustion method threshold value to metal pan and non-metal pan, can set for acquiescence threshold value to other material pans and prevent dry combustion method.

Here, the first set value is used to represent a maximum temperature critical value of a temperature range in which the metal cookware can maintain a better use state during cooking; the second set value is used for representing the maximum temperature critical value of the temperature range of the non-metallic cookware which can maintain a better use state in the cooking process.

In the implementation process, determining the material of the cookware according to the conductive detection result within a preset time period or a preset temperature interval, and when the feedback current intensity of the conductive detection result is within a first current intensity interval, determining a first set value corresponding to the metal material to perform dry burning prevention early warning, wherein the cookware is made of the metal material; when the feedback current intensity of the conductive detection result is within the second current intensity interval, the material of the pot is non-metal material, and the second set value corresponding to the non-metal material is determined to perform dry burning prevention early warning. Therefore, the cookware material is distinguished through the conductive detection result, the condition that the cookware stops heating is conveniently determined and controlled according to the cookware material, accurate dry burning prevention of cookware made of different materials according to temperature information is realized, the judgment method is simplified, and meanwhile the false judgment rate of dry burning prevention is effectively reduced.

In this embodiment, set up the numerical value of second setting value to 400 degrees, when the temperature of pan was greater than 400 degrees, control cooking utensils stop heating, can prevent that this non-metal pan from taking place to dry and burn. The numerical value of the first set value is set to 300 degrees, when the temperature of the cookware is greater than 300 degrees, the cookware is controlled to stop heating, and the metal cookware can be prevented from being burnt. In other embodiments of the present invention, the threshold value may be set according to the temperature information of the pot. So, realized confirming the pan material according to electrically conductive testing result after, confirm according to the pan material and prevent dry combustion method threshold value, when the temperature information of pan was greater than and prevents dry combustion method threshold value, control cooking utensils stop heating in order to prevent to appear the problem of dry combustion method. Because the cookers made of different materials have different dry burning prevention threshold values, accurate dry burning prevention of cookers made of different materials according to temperature information is realized, the judgment method is simplified, and meanwhile, the false judgment rate of dry burning prevention is effectively reduced.

In some embodiments, when the pot is made of metal, the pot further comprises: and when the heating rate of the cookware is less than a first set rate and the change rate of the heating rate is less than 0, increasing a first compensation value for the first set value.

Here, the first compensation value is used to represent a difference between a maximum temperature threshold value of a temperature range in which the metal cookware can maintain a better use state in a specific cooking state and the first set value. The heating rate of the pot is determined based on the heating interval and the heating time of the pot. For example, a first temperature rise interval [ T1, T2 ] is detected and obtained in a first measurement period T1]Then the temperature rise rate k₁(T2-T1)/T1; or the time T2 required for detecting the temperature of the pot from T2 to T3, the heating rate k₂(T3-T2)/T2. Under the condition, the change rate of the heating rate of the cookware is smaller than 0, optionally, the change rate of the heating rate is negative and is close to 0, the fluctuation is not large, the heating rate of the cookware is gradually reduced, and when the heating rate of the cookware is smaller than a third threshold value, the heating change of the cookware reaches a limit, so that the metal cookware can be further determined to be in a dry-cooking state of waterless cooking, a first compensation value is added to a first set value at the moment, and when the temperature of the cookware is larger than the value, the cookware is controlled to stop heating, so that the metal cookware can be prevented from being dry-cooked.

Optionally, when the material of pan is the metal material, still include: when the heating rate of the cookware is greater than a second set rate and the change rate of the heating rate is greater than or equal to 0, a second compensation value is added to the first set value; and the second set speed rate has a corresponding relation with the firepower degree of the cooker.

Here, the second compensation value is used to represent a difference between a maximum temperature critical value of a temperature range in which the metal cookware can maintain a better use state in another specific cooking state and the first set value. The second set rate is used for representing the heating rate of the cookware made of one material in the normal cooking state under the corresponding fire power degree. When the heating rate of the pot is greater than the second set rate, the heating rate of the pot is in a faster state, and the heating rate is greater than the heating rate of the normal pot corresponding to the firepower degree in the cooking state, so that the danger of dry burning is possible. The change rate of the temperature rise rate of the cookware is greater than or equal to 0, which indicates that the cookware still keeps a higher temperature rise rate, and the temperature rise rate is gradually increased along with the time, or a certain temperature rise rate is continuously kept, further, the metal cookware can be inferred to be in a dry-cooking state with water for cooking, at the moment, a second compensation value is added to the first set value, and when the temperature of the cookware is greater than the value, the cookware is controlled to stop heating, so that the metal cookware can be prevented from being dried.

Optionally, the higher the firepower of the stove is, the larger the value of the corresponding second set speed is. Since the second setting rate has a corresponding relationship with the firepower degree and is expressed as the temperature rise rate of the cookware made of one material in the normal cooking state under the corresponding firepower degree, the value of the second setting rate is increased according to the increase of the firepower degree. Here, the degree of fire may be acquired by a fire detection sensor. The fire detection sensor can be a rotatable potentiometer arranged on a knob column of a stove switch, and the fire of the stove is further judged by acquiring a fire adjusting gear of the stove through sensing the resistance, voltage or current change of the potentiometer. In another embodiment, the fire detection sensor can also be a gas flow velocity sensing device arranged on a gas pipeline, and the fire of the cooker is judged by sensing the flow velocity of gas. In another embodiment, the fire detection sensor may be a gas pressure sensing device installed on the gas pipeline, and the fire of the stove is judged by sensing the pressure of the gas. Certainly, the stove can also be an electromagnetic stove, and the firepower of the electromagnetic stove can be judged by detecting the current supplied to the coil or the firepower gear; the fire power can be divided into a plurality of gears, such as 1 gear, 2 gear, 3 gear, 4 gear, 5 gear and the like. In one embodiment, the firepower is divided into 3 gears, the 1 gear is a small fire, the 2 gear is a medium fire, the 3 gear is a large fire, the first preset firepower is P1 and the second preset firepower is P2, such that when the detected firepower P < P1, the current firepower level is determined to be a small fire, when the detected firepower P1 ≦ P2, the current firepower level is determined to be a medium fire, and when the detected firepower P > P2, the current firepower level is determined to be a large fire. And confirming a corresponding second set speed value according to the current firepower degree, and judging the cooking state of the cooker so as to determine a threshold value for preventing the cooker from being dried.

Therefore, after the pot is determined to be made of metal according to the conductive detection result, the current cooking state of the pot is judged by acquiring the temperature rise rate information in the pot temperature information, and the dry burning prevention threshold value is further determined. Optionally, the cooking state may include a water cooking state or a no water cooking state, and the heating rate of the pot is different in different cooking states.

With reference to fig. 6, an embodiment of the present disclosure provides another control method for preventing dry burning of a cooker, including:

step S200, determining the material of the cookware according to the conductive detection result;

step S210, detecting temperature information of the pot when the temperature of the pot reaches a preset temperature;

step S220, when the temperature of the cookware is greater than the temperature threshold, controlling the cooker to stop heating;

wherein, the detection result has corresponding relation with the material of pan.

Here, the preset temperature is used to indicate a temperature range in which a part or all of the cookware made of the material is in a safe cooking state during cooking, and optionally, the value range of the preset temperature is 140 degrees to 230 degrees. After cooking is started, when the temperature of the pot, for example, the temperature of the bottom of the pot is within the preset temperature range, the pot is in a state that heating cooking is started and no dry-burning danger exists, at the moment, the dry-burning prevention function is started, the temperature information of the pot starts to be acquired, and compared with a scheme of continuously detecting the relation between the temperature of the pot and the time, the data detection time can be shortened, and redundant data and a required storage space of the data are reduced. Optionally, after beginning culinary art, the accessible sets up the interval time quantum, and the current pan temperature of regular detection to whether confirm to open and prevent dry combustion method function, detect the temperature information of pan.

In some embodiments, the above control method for preventing dry heating further includes: and when the temperature of the cooker reaches a third set value, controlling the cooker to stop heating. The third setting value is used for expressing the temperature of the cookware made of partial or all materials which is dangerous to dry heat, and when the cookware reaches the temperature, the cookware is heated continuously and may be dry-heated or even exploded. Optionally, the third setting value is greater than the second setting value; optionally, the third set value is assigned to 500 degrees, and when the temperature of the pot is higher than 500 degrees, the cooker is controlled to stop heating, so that the pot can be prevented from being burnt. Therefore, the dry burning prevention protection of the cookware can be realized by setting the third set value under the condition that the threshold value cannot be set according to the cookware material.

Referring to fig. 7, an embodiment of the present disclosure provides a control device for preventing dry-burning of a stove, including a detection module 31 and a control module 32. The detection module 31 is configured to detect the conductivity of the cookware and determine a temperature threshold according to the conductive detection result; the control module 32 is configured to control the cooktop to stop heating when the temperature of the cookware is greater than the temperature threshold; wherein, the detection result has corresponding relation with the material of pan.

Adopt the device that is used for cooking utensils to prevent dry combustion method that this disclosed embodiment provided, can confirm the material of pan according to the electrically conductive condition of pan to confirm control cooking utensils to stop heating temperature threshold value according to the material of pan, when the temperature of pan is greater than this temperature threshold value, control cooking utensils to stop heating in order to prevent to appear the problem of burning futilely. Because the cookers made of different materials have different dry burning prevention threshold values, accurate dry burning prevention of cookers made of different materials according to temperature information is realized, the judgment method is simplified, and meanwhile, the false judgment rate of dry burning prevention is effectively reduced.

Referring to fig. 8, another control device for preventing dry burning of a stove according to an embodiment of the present disclosure further includes a detection module 41, an acquisition module 42, and a control module 43. Wherein, the obtaining module 42 is configured to detect the temperature information of the pot when the temperature of the pot reaches the preset temperature.

The cooking utensil provided by the embodiment of the disclosure comprises the control device for preventing dry burning of the cooking utensil.

Referring to fig. 9, an embodiment of the present disclosure provides a control device for preventing dry-burning of a cooker, including a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to execute the control method for preventing dry burning of the cooking appliance of the above embodiment.

In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.

The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by operating program instructions/modules stored in the memory 101, that is, implements the control method for preventing dry burning of the cooking appliance in the above embodiments.

The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.

The cooking utensil provided by the embodiment of the disclosure comprises the control device for preventing dry burning of the cooking utensil. Optionally, the cooker is further provided with a key for determining the type of the cookware.

The embodiment of the disclosure provides a computer-readable storage medium, which stores computer-executable instructions configured to execute the above control method for preventing dry burning of a cooker.

The embodiment of the disclosure provides a computer program product, which comprises a computer program stored on a computer readable storage medium, wherein the computer program comprises program instructions, and when the program instructions are executed by a computer, the computer executes the control method for preventing the dry burning of the cooker.

The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A hob, characterized in that it comprises:

a contact part disposed on the cooktop;

and the conductive detection device is arranged on the contact part, is arranged to be in contact with a pot placed on the cooker and is used for detecting the conductivity of the pot.

2. Hob according to claim 1, characterized in that the electrical conductivity detection means comprise electrode contacts.

3. The cooktop of claim 1, wherein the contact comprises a pot holder.

4. The cooktop of claim 1, wherein the contact comprises a temperature sensor of the cooktop; the conductive detection device comprises a metal rod connected with the temperature sensor.

5. A control method for preventing dry burning of the cooking range of any one of claims 1 to 4 is characterized by comprising the following steps:

detecting the conductivity of the cookware, and determining a temperature threshold value according to a conductive detection result;

when the temperature of the cooker is greater than the temperature threshold value, controlling the cooker to stop heating;

wherein, the detection result has corresponding relation with the material of pan.

6. The control method of claim 5, wherein determining the temperature threshold based on the conduction detection comprises:

determining the material of the cookware according to the conductive detection result;

and determining the temperature threshold value according to the material of the cookware.

7. The control method according to claim 6, wherein the determining the material of the pot according to the conductive detection result comprises:

when the feedback current intensity of the conduction detection result is within a first current intensity interval, the cookware is made of a metal material; and/or

When the feedback current intensity of the conductive detection result is within the second current intensity interval, the cookware is made of non-metal materials.

8. The control method according to claim 6, wherein the determining the threshold value according to the material of the pot includes:

when the pot is made of metal, the temperature threshold is a first set value; and/or

When the pot is made of non-metal materials, the temperature threshold value is a second set value;

wherein the first set value is smaller than the second set value.

9. The control method according to any one of claims 5 to 8, characterized by further comprising: after the pan temperature reached preset temperature, detect the temperature information of pan.

10. Control device for the hob dry burning prevention according to any one of the claims 1 to 4, characterized in that it comprises a processor and a memory storing program instructions, characterized in that the processor is configured to perform the method according to any one of the claims 5 to 9 when executing the program instructions.

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