Anti-dry-burning control method and anti-dry-burning system of gas stove and gas stove

Abstract

The invention relates to the technical field of gas stoves, and particularly discloses an anti-dry-burning control method and an anti-dry-burning system of a gas stove and the gas stove. According to the anti-dry-burning control method of the gas stove, the anti-dry-burning system and the gas stove, the reference temperature Ti is obtained according to the measurement temperature T pot of the first position area and the measurement temperature T radiation of heat radiation and heat convection of the second position area, and whether dry burning exists in the pot or not is judged according to Ti; the influence of the temperature of heat radiation and heat convection on the measured temperature of the detected first position area is considered, judgment of the heat radiation and the heat convection on the anti-dry-burning temperature is avoided, the accuracy of anti-dry-burning judgment of the gas stove is improved, the probability of safety accidents is reduced, and the safety of the gas stove is improved. And the anti-dry burning system of the gas stove has universality in different burning system structures.

Description

Technical Field

[0001] The present invention relates to the technical field of gas stoves, and in particular to a gas stove anti-dry burning control method, an anti-dry burning system and a gas stove. Background Art

[0002] With the development of society, people's living standards continue to improve, and safety awareness continues to increase. The safety performance of gas stoves has received more and more attention. Gas stoves with anti-dry burning function have become a trend in the development of gas stoves.

[0003] The existing anti-dry-burn gas stoves are becoming more and more accurate in judging the anti-dry-burn. From ordinary anti-dry-burn only suitable for iron pots and stainless steel pots, to now intelligent anti-dry-burn can automatically judge the dry-burning flameout temperature according to different pots and different cooking methods, and can adapt to more pot types. However, the anti-dry-burn judgment of the existing gas stoves is still mainly based on detecting the temperature of the bottom of the pot. The temperature detection sensor is located at the center of the burner of the gas stove to detect the temperature of the center of the bottom of the pot. The temperature detected by the temperature detection sensor is the temperature of the flame heat radiation, air heat convection and heat conduction of the bottom of the pot. The temperature detection sensor relies on the heat insulation ring and the structure of the temperature detection sensor itself for heat insulation. The height of the pot support, the combustion system structure and the compression of the temperature detection sensor have a great influence on the flame heat radiation and air heat convection received by the temperature detection sensor, which will affect the judgment of anti-dry-burn. In actual use, the same anti-dry-burn system will be placed in different combustion system structures. This setting will affect the judgment of anti-dry-burn and easily cause misjudgment.

[0004] Therefore, there is an urgent need to provide a gas stove anti-dry burning control method, an anti-dry burning system and a gas stove to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a gas stove anti-dry burning control method, which improves the accuracy of gas stove anti-dry burning judgment and effectively avoids the influence of heat radiation and heat convection on the anti-dry burning temperature judgment.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, a method for preventing dry burning of a gas stove is provided, the method comprising:

[0008] Get the measured temperature T of the first position area 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 ;

[0009] According to T 锅 and T 辐射 Get the reference temperature T i ;

[0010] According to T i Determine whether the pot is dry burning. If so, turn off the gas stove.

[0011] The first position area is the bottom of the pot, and the second position area is a preset area that is at a preset distance from the bottom of the pot and is within the coverage of the flame.

[0012] As an optional technical solution of the above-mentioned gas stove anti-dry burning control method, according to T 锅 and T 辐射 Get the reference temperature T i include:

[0013] According to the formula T i =T 锅 -αT 辐射 , get the reference temperature T i ;

[0014] Wherein, α is the influence coefficient of the temperature of thermal radiation and thermal convection on the measured temperature of the first position area.

[0015] As an optional technical solution of the above-mentioned gas stove anti-dry burning control method, the method of obtaining α includes:

[0016] Get the temperature T of the third location area i测 , the temperature of the first position area T 锅测 and the measured temperature T of the thermal radiation and thermal convection in the second position area 检测 Multiple sets of data;

[0017] According to T i测 =T 锅测 -α 测 T 检测 , get α 测1 , α 测2 , …, α 测n-1 and α 测n ;

[0018] α 测1 , α 测2 , …, α 测n-1 and α 测n After summing, an average value is obtained, and the average value is α;

[0019] Wherein, n is greater than 1, and the third position area is the interior of the cookware.

[0020] As an optional technical solution of the above-mentioned gas stove anti-dry burning control method, according to T i Judging whether the pot is dry burning includes:

[0021] Judge T iIs it greater than or equal to T? max If so, make sure the pot is dry burning and the gas stove is turned off;

[0022] Among them, T max Set the threshold for dry boiling maximum.

[0023] As an optional technical solution of the above-mentioned gas stove anti-dry burning control method, if T i Less than T max , then judge T i Is it greater than or equal to T? min ;

[0024] If T i Greater than or equal to T min , then determine whether the pot is in a boiling state, if not, it is determined that the pot is dry burning and the gas stove is turned off;

[0025] Among them, T min Set the minimum threshold for dry boiling.

[0026] As an optional technical solution of the above-mentioned gas stove anti-dry burning control method, judging whether the pot is in a boiling state includes:

[0027] Calculate the currently acquired reference temperature T i+1 Compared with the reference temperature T obtained last time i The difference △T i ;

[0028] If △T i If it is greater than or equal to the preset value △T, it is determined that the pot is dry-burning and the gas stove is turned off;

[0029] If △T i If it is less than the preset value △T, it is determined that the pot is in a boiling state.

[0030] As an optional technical solution of the above-mentioned gas stove anti-dry burning control method, when obtaining the measured temperature T of the first position area 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 Previously included:

[0031] Activate the anti-dry burning mode of the gas stove.

[0032] The purpose of the present invention is to provide a gas stove anti-dry burning system, which improves the accuracy of gas stove anti-dry burning judgment and effectively avoids the influence of heat radiation and heat convection on the anti-dry burning temperature judgment.

[0033] To achieve this object, the present invention adopts the following technical solutions:

[0034] In a second aspect, a gas stove anti-dry burning system is provided, which is applied to any one of the above-mentioned gas stove anti-dry burning control methods, and the gas stove anti-dry burning system comprises:

[0035] A first temperature acquisition module is arranged at the center of the burner of the gas stove, and the first temperature acquisition module is configured to acquire the temperature of the first position area;

[0036] A second temperature acquisition module is disposed on one side of the first temperature acquisition module, and the second temperature acquisition module is configured to collect the temperature of thermal radiation and thermal convection in the second position area;

[0037] Control module for use according to T 锅 and T 辐射 Get the reference temperature T i , and according to T i Determine whether the pot is dry-burning.

[0038] As an optional technical solution of the above-mentioned gas stove anti-dry burning system, the control module includes:

[0039] Calculation module for T 锅 and T 辐射 Get the reference temperature T i ;

[0040] The judgment module is used to determine the i Determine whether the pot is dry-burning.

[0041] The object of the present invention is to provide a gas stove, which improves the accuracy of the gas stove's anti-dry burning judgment and reduces the probability of safety accidents.

[0042] To achieve this object, the present invention adopts the following technical solutions:

[0043] In a third aspect, a gas stove is provided, comprising the anti-dry burning system of any one of the gas stoves described above.

[0044] Beneficial effects of the present invention:

[0045] The anti-dry burning control method of the gas stove provided by the present invention is based on the measured temperature T of the first position area. 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 Get the reference temperature T i , according to T iTo judge whether the pot is dry-burning, the influence of the temperature of thermal radiation and thermal convection on the measured temperature of the first position area of ​​the detection is taken into account, thereby avoiding the judgment of the anti-dry-burning temperature by thermal radiation and thermal convection, improving the accuracy of the gas stove's anti-dry-burning judgment, reducing the probability of safety accidents, and making the gas stove's anti-dry-burning system universal in different combustion system structures.

[0046] The anti-dry burning system of the gas stove provided by the present invention is equipped with a first temperature acquisition module at the center position of the burner of the gas stove, and a second temperature acquisition module is arranged on one side of the first temperature acquisition module, and the second temperature acquisition module is configured to acquire the temperature of thermal radiation and thermal convection in the second position area, so as to be used in combination with the first temperature acquisition module configured to acquire the temperature of the first position area to judge whether the pot is dry-burned, and the influence of the temperature of thermal radiation and thermal convection on the measured temperature of the first position area detected is taken into consideration, and the judgment of the anti-dry burning temperature by thermal radiation and thermal convection is avoided, thereby improving the accuracy of the anti-dry burning judgment of the gas stove, reducing the probability of safety accidents, and making the anti-dry burning system of the gas stove universal in different combustion system structures.

[0047] The gas stove provided by the present invention improves the accuracy of the gas stove's anti-dry burning judgment and reduces the probability of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a flow chart of the main steps of the anti-dry burning control method of the gas stove provided by the embodiment of the present invention;

[0049] Figure 2 is a detailed step flow chart of a method for preventing dry burning of a gas stove provided by an embodiment of the present invention;

[0050] Figure 3 It is a schematic diagram of the arrangement positions of the first temperature acquisition module and the second temperature acquisition module provided in an embodiment of the present invention.

[0051] In the figure:

[0052] 1. First temperature acquisition module; 2. Second temperature acquisition module; 3. Burner. DETAILED DESCRIPTION

[0053] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0054] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0056] In the prior art, the dry-burn prevention judgment of the gas stove is still mainly performed by detecting the temperature of the bottom of the pot. The temperature detection sensor is located at the center of the burner of the gas stove. The temperature detected by the temperature detection sensor is the temperature of flame heat radiation, air heat convection and heat conduction of the bottom of the pot, but not the actual temperature of the bottom of the outer side of the pot, which affects the accuracy of the dry-burn prevention judgment. The present embodiment provides a gas stove dry-burn prevention control method, an anti-dry-burn prevention system and a gas stove to solve the above technical problems.

[0057] Embodiment 1

[0058] Figure 1 FIG. 1 is a flow chart of the main steps of the anti-dry burning control method of the gas stove provided in this embodiment. Figure 1 As shown, the anti-dry burning control method of the gas stove provided in this embodiment includes:

[0059] Get the measured temperature T of the first position area 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 ;

[0060] According to T 锅 and T 辐射 Get the reference temperature T i ;

[0061] According to T i Determine whether the pot is dry burning. If so, turn off the gas stove.

[0062] The first position area is the bottom of the pot, and the second position area is a preset area that is at a preset distance from the bottom of the pot and is within the coverage of the flame.

[0063] In the anti-dry burning control method of the gas stove provided in this embodiment, according to the measured temperature T of the first position area, 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 Get the reference temperature T i , according to T i To judge whether the pot is dry-burning, the influence of the temperature of thermal radiation and thermal convection on the measured temperature of the first position area of ​​the detection is taken into account, thereby avoiding the judgment of the anti-dry-burning temperature by thermal radiation and thermal convection, improving the accuracy of the gas stove's anti-dry-burning judgment, reducing the probability of safety accidents, and making the gas stove's anti-dry-burning system universal in different combustion system structures.

[0064] Figure 2 is a detailed step flow chart of the anti-dry burning control method of the gas stove provided in this embodiment, and the following reference is made to Figure 2 The anti-dry burning control method is introduced in detail.

[0065] The anti-dry burning control method of the gas stove comprises the following steps:

[0066] Step 1: Activate the anti-dry burning mode of the gas stove.

[0067] Specifically, the gas stove has an anti-dry-burning mode. When using the gas stove, the user can set the working mode of the gas stove. For example, in this embodiment, the gas stove has an anti-dry-burning function, so the anti-dry-burning mode is included in the operation mode. The user can select the anti-dry-burning mode according to the use requirements. After the gas stove is set to the anti-dry-burning mode, if the pot is dry-burned during the cooking process, the gas stove will automatically turn off to avoid safety accidents.

[0068] Step 2: Obtain the measured temperature T of the first position area 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 .

[0069] The first position area is the bottom of the pot, and the second position area is a preset area that is kept at a preset distance from the bottom of the pot and is within the coverage of the flame.

[0070] Specifically, Figure 3 As shown, in the structure of the gas stove, a first temperature acquisition module 1 is arranged at the center position of the burner 3 of the gas stove, and a second temperature acquisition module 2 is arranged on one side of the first temperature acquisition module 1. The first temperature acquisition module 1 is used to collect the temperature of the first position area, and the second temperature acquisition module 2 is used to collect the temperature of the thermal radiation and thermal convection of the second position area.

[0071] The first temperature acquisition module 1 and the second temperature acquisition module 2 respectively include a temperature sensing element, which is fireproof and waterproof.

[0072] Step 3: According to T 锅 and T 辐射 Get the reference temperature T i .

[0073] Specifically, in this embodiment, the temperature of the heat radiation and heat convection in the second position area has a certain influence on the temperature of the first position area collected by the first temperature collection module 1, which in turn affects the judgment of the anti-dry-burning temperature, that is, the temperature collected by the first temperature collection module 1 is higher than the actual temperature of the first position area. Therefore, the second temperature collection module 2 is set to collect the temperature of the heat radiation and heat convection in the second position area.

[0074] In this embodiment, according to the measured temperature T of the first position area collected by the first temperature collection module 1 锅 The second temperature acquisition module 2 acquires the temperature T of the second position area by thermal radiation and thermal convection 辐射 Get the reference temperature T i .

[0075] Optionally, according to the formula T i =T 锅 -αT 辐射 , get the reference temperature T i , where α is the influence coefficient of the temperature of thermal radiation and thermal convection on the measured temperature of the first position area.

[0076] The method for obtaining α includes: obtaining the temperature T of the third position area i测 , the temperature of the first position area T 锅测 and the measured temperature T of the thermal radiation and thermal convection in the second position area 检测 Multiple sets of data; according to T i测 =T 锅测 -α 测 T 检测 , get α 测1 , α 测2 , …, α 测n-1 and α 测n ; Set α 测1 , α 测2 , …, α 测n-1 and α 测n The average value obtained after summing is the above-mentioned α value. Wherein, n is greater than 1, and the third position area is the inside of the pot.

[0077] For example, the thermal conductivity of pots is usually good, so a pot made of copper or aluminum with good thermal conductivity is selected for temperature testing to obtain an accurate α value. In actual operation, the selected pot is placed on a gas stove for heating, and a temperature detection probe of a temperature detection member is placed in the pot, preferably against the bottom of the pot. The temperature detected by the temperature detection member is T i测 , the temperature collected by the first temperature collection module 1 is T 锅测 The temperature collected by the second temperature collection module 2 is T 检测 , then according to the formula T i测 =T 锅测 -α 测 T 检测 , calculate α 测 , by collecting multiple sets of data, we can get α 测1 , α 测2 , …, α 测n-1 and α 测n , α 测1 , α 测2 , …, α 测n-1 and α 测n The sum is then taken to get the average value, which is the above-mentioned α.

[0078] Step 4: Determine T i Is it greater than or equal to T? max If so, make sure the pot is burning dry and the gas stove is turned off.

[0079] Specifically, in this embodiment, T max The maximum threshold for dry burning is set, which can be obtained in the test experiment. At the obtained reference temperature T i Greater than or equal to T max , make sure the pot is burning dry, the gas stove is turned off, and the fire source is cut off in time to avoid safety accidents.

[0080] Step 5: If T i Less than T max , then judge T i Is it greater than or equal to T? min .

[0081] Specifically, in this embodiment, T min A minimum threshold is set for dry boiling, which can be obtained during test trials.

[0082] If the reference temperature T i Less than T max , and then judge T i Is it greater than or equal to T? min , and then further accurately judge the status of the pot.

[0083] If the reference temperature Ti Less than T max , T i Also less than T min , the pot will not dry burn, and the reference temperature T i , to avoid the pot from being burned dry.

[0084] Step 6: If T i Greater than or equal to T min , then determine whether the pot is in a boiling state. If not, it is determined that the pot is dry-burning and the gas stove is turned off.

[0085] Specifically, in order to accurately determine whether the pot is dry-burned and avoid accidentally shutting down the gas stove or not shutting down the gas stove in time, which causes the pot to be dry-burned, at the reference temperature T i Greater than or equal to T min and less than T max When the temperature reaches 400 °C, it is necessary to further judge the state of the pot, that is, to judge whether the inside of the pot is in a boiling state or a dry-burning state within this temperature range.

[0086] Further, determining whether the pot is in a boiling state includes:

[0087] Calculate the currently acquired reference temperature T i+1 Compared with the reference temperature T obtained last time i The difference △T i ;

[0088] If △T i If it is greater than or equal to the preset value △T, it is determined that the pot is dry-burning and the gas stove is turned off;

[0089] If △T i If the temperature is less than the preset value △T, it is determined that the pot is in a boiling state. In this state, it is necessary to continuously obtain the reference temperature T i+1 , with the reference temperature T obtained last time i Make difference calculation to realize real-time monitoring of the status of the cookware and avoid dry burning problems.

[0090] The above-mentioned preset value △T can be obtained in the test experiment and set in advance in the anti-dry burning system for judgment.

[0091] The anti-dry-burn control method for the gas stove provided in this embodiment can effectively avoid the judgment of the anti-dry-burn temperature by thermal radiation and thermal convection, improve the accuracy of the anti-dry-burn judgment of the gas stove, reduce the probability of safety accidents, and also make the anti-dry-burn system of the gas stove universal in different combustion system structures.

[0092] Embodiment 2

[0093] This embodiment provides a gas stove anti-dry burning system, and applies the gas stove anti-dry burning control method provided in the first embodiment.

[0094] Specifically, Figure 3 As shown, the anti-dry burning system of the gas stove includes a first temperature acquisition module 1, a second temperature acquisition module 2 and a control module. The first temperature acquisition module 1 is set at the center of the burner 3 of the gas stove, and the first temperature acquisition module 1 is configured to collect the temperature of the first position area. The second temperature acquisition module 2 is set on one side of the first temperature acquisition module 1, and the second temperature acquisition module 2 is configured to collect the temperature of the thermal radiation and thermal convection of the second position area. The control module is used to collect the temperature of the second position area according to the temperature T 锅 and T 辐射 Get the reference temperature T i , and according to T i Determine whether the pot is dry-burning.

[0095] The anti-dry burning system of the gas stove provided in the present embodiment is provided with a first temperature acquisition module 1 at the center position of the burner 3 of the gas stove, and a second temperature acquisition module 2 is provided on one side of the first temperature acquisition module 1, and the second temperature acquisition module 2 is configured to acquire the temperature of the thermal radiation and thermal convection of the second position area, so as to be used in combination with the first temperature acquisition module 1 configured to acquire the temperature of the first position area to judge whether the pot is dry-burned, taking into account the influence of the temperature of the thermal radiation and thermal convection on the measured temperature of the outer side of the bottom of the pot to be detected, avoiding the judgment of the anti-dry burning temperature by thermal radiation and thermal convection, improving the accuracy of the anti-dry burning judgment of the gas stove, reducing the probability of safety accidents, and making the anti-dry burning system of the gas stove universal in different combustion system structures.

[0096] Optionally, the first temperature acquisition module 1 and the second temperature acquisition module 2 respectively include a temperature sensing element, which has fireproof and waterproof properties. The first temperature acquisition module 1 and the second temperature acquisition module 2 are respectively electrically connected to the control module to transmit the collected temperature signal to the control module, and the control module calculates and determines whether the pot is dry-burned according to the collected temperature, and can cut off the fire source in time and turn off the gas stove.

[0097] In actual use, the pot is placed on the gas stove, and the temperature collection end of the first temperature collection module 1 is in contact with the outer side of the pot bottom to improve the accuracy of the detection of the pot bottom temperature.

[0098] The second temperature acquisition module 2 is arranged on the side of the first temperature acquisition module 1, but the distance between the two cannot be too large. Specifically, the distance is set according to the size of the gas stove, and no specific restrictions are made here, so as to improve the accuracy of the second temperature acquisition module 2 in collecting the temperature of the heat radiation and heat convection of the second position area. And after the pot is placed on the gas stove, the temperature acquisition end of the second temperature acquisition module 2 is spaced from the pot, so as to ensure that the second temperature acquisition module 2 collects accurate temperatures of heat radiation and heat convection.

[0099] The above control module includes a calculation module and a judgment module. The calculation module is used to 锅 and T 辐射 Get the reference temperature T i The judgment module is used to determine the i Determine whether the pot is dry-burned. The specific structures of the calculation module and the judgment module are prior art and will not be described in detail here.

[0100] This embodiment also provides a gas stove, which includes the above-mentioned anti-dry burning system of the gas stove. The gas stove improves the accuracy of the anti-dry burning judgment of the gas stove and reduces the probability of safety accidents.

[0101] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for preventing dry burning of a gas stove, characterized in that: The control method comprises: Get the measured temperature T of the first position area 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 ; According to T 锅 and T 辐射 Get the reference temperature T i ; According to T i Determine whether the pot is dry burning. If so, turn off the gas stove. The first position area is the bottom of the pot, and the second position area is a preset area that is at a preset distance from the bottom of the pot and is within the coverage of the flame.

2. The method for preventing dry burning of a gas stove according to claim 1, characterized in that: According to T 锅 and T 辐射 Get the reference temperature T i include: According to the formula T i =T 锅 -αT 辐射 , get the reference temperature T i ; Wherein, α is the influence coefficient of the temperature of thermal radiation and thermal convection on the measured temperature of the first position area.

3. The method for preventing dry burning of a gas stove according to claim 2, characterized in that: Methods for obtaining α include: Get the temperature T of the third location area i测 , the temperature of the first position area T 锅测 and the measured temperature T of the thermal radiation and thermal convection in the second position area 检测 Multiple sets of data; According to T i测 =T 锅测 -α 测 T 检测 , get α 测1 , α 测2 , …, α 测n-1 and α 测n ; α 测1 , α 测2 , …, α 测n-1 and α 测n After summing, an average value is obtained, and the average value is α; Wherein, n is greater than 1, and the third position area is the interior of the cookware.

4. The method for preventing dry burning of a gas stove according to claim 1, characterized in that: According to T i Judging whether the pot is dry burning includes: Judge T i Is it greater than or equal to T? max , if so, make sure the pot is dry burning and the gas stove is turned off; Among them, T max Set the threshold for dry boiling maximum.

5. The method for preventing dry burning of a gas stove according to claim 4, characterized in that: If T i Less than T max , then judge T i Is it greater than or equal to T? min ; If T i Greater than or equal to T min , then determine whether the pot is in a boiling state, if not, it is determined that the pot is dry burning and the gas stove is turned off; Among them, T min Set the minimum threshold for dry boiling.

6. The method for preventing dry burning of a gas stove according to claim 5, characterized in that: Determining whether the pot is in a boiling state includes: Calculate the currently acquired reference temperature T i+1 Compared with the reference temperature T obtained last time i The difference △T i ; If △T i If it is greater than or equal to the preset value △T, it is determined that the pot is dry-burning and the gas stove is turned off; If △T i If it is less than the preset value △T, it is determined that the pot is in a boiling state.

7. The method for preventing dry burning of a gas stove according to claim 1, characterized in that: When obtaining the measured temperature T of the first position area 锅 and the measured temperature T of the thermal radiation and thermal convection in the second position area 辐射 Previously included: Activate the anti-dry burning mode of the gas stove.

8. A gas stove dry burning prevention system, using the gas stove dry burning prevention control method according to any one of claims 1 to 7, characterized in that: The anti-dry burning system of the gas stove comprises: A first temperature acquisition module (1) is arranged at the center of the burner (3) of the gas stove, and the first temperature acquisition module (1) is configured to acquire the temperature of a first position area; A second temperature acquisition module (2) is arranged on one side of the first temperature acquisition module (1), and the second temperature acquisition module (2) is configured to acquire the temperature of thermal radiation and thermal convection in a second position area; Control module for use according to T 锅 and T 辐射 Get the reference temperature T i , and according to T i Determine whether the pot is dry-burning.

9. The anti-dry burning system of the gas stove according to claim 8, characterized in that: The control module comprises: Calculation module for T 锅 and T 辐射 Get the reference temperature T i ; The judgment module is used to determine the i Determine whether the pot is dry-burning.

10. A gas stove, characterized in that: A gas stove anti-dry burning system comprising any one of claims 8-9.

Images