Cooker with precise temperature sensing function and control method thereof

Abstract

The present invention discloses a stove with a precise temperature sensing function and a control method thereof, wherein the stove comprises: a temperature detection module for detecting the real-time temperature Ts of the pot bottom and / or the equilibrium temperature Ta when the pot bottom temperature reaches thermal equilibrium; an air pressure detection module for detecting the atmospheric pressure in the area where the stove is located; and a controller, wherein the air pressure detection module and the temperature detection module are electrically connected to the controller respectively, and the controller is used to obtain the boiling point temperature T of the area where the stove is located according to the atmospheric pressure. 沸 , according to Ta and T 沸 Calculate the system deviation value △T, and calculate the actual temperature T of the cooking object based on △T and Ts 实 The cooker of the present invention obtains the boiling point temperature of the area where the cooker is located through the air pressure detection module, and eliminates the temperature difference between the temperature detection module and the cooked food through system deviation value calibration, thereby accurately calculating the actual temperature of the cooked food and improving the temperature measurement accuracy of the cooked food.

Description

Technical Field

[0001] The present invention relates to the technical field of stoves, and in particular to a precise temperature control technology for stoves. Background Art

[0002] When cooking congee or pasta on a stove, overflowing is a common pain point for users. This can degrade stove performance or even damage it, severely impacting the cooking experience. Therefore, preventing overflow is a key area of ​​research for stoves.

[0003] Existing stove temperature sensors detect the temperature of the bottom of the pot and cannot accurately detect the actual temperature of the food being cooked inside the pot. This is not conducive to achieving ideal cooking effects, cannot solve the problem of pot overflow, and is not suitable for use in scenarios with different atmospheric pressures. Summary of the Invention

[0004] The present invention aims to solve, at least to a certain extent, one of the problems existing in the existing related art. To this end, the present invention proposes a cooker with a precise temperature sensing function. By calculating the system deviation, the actual temperature of the food being cooked measured by the cooker is corrected, thereby improving the temperature measurement accuracy of the food being cooked.

[0005] The present invention also provides a method for controlling a stove, which achieves an ideal cooking effect by accurately calculating the actual temperature of the food being cooked and controlling the firepower of the stove according to the actual temperature.

[0006] According to the above-mentioned stove with precise temperature sensing function, it is realized through the following technical solutions:

[0007] A stove with a precise temperature sensing function comprises a stove body and a burner having at least an inner ring flame and an outer ring flame, and further comprises: a temperature detection module for detecting the real-time temperature Ts of the pot bottom and / or the equilibrium temperature Ta when the pot bottom temperature reaches thermal equilibrium; an air pressure detection module for detecting the atmospheric pressure in the area where the stove is located; and a controller, wherein the air pressure detection module and the temperature detection module are electrically connected to the controller, and the controller is used to obtain the boiling point temperature T of the area where the stove is located based on the atmospheric pressure. 沸 , also used according to the equilibrium temperature Ta and boiling point temperature T 沸 Calculate the system deviation value △T, and calculate the actual temperature T of the cooked object based on the system deviation value △T and the real-time temperature Ts of the pot bottom. 实 .

[0008] In some embodiments, a gas regulating module electrically connected to the controller is further included, the gas regulating module is connected to the burner, and the controller is used to adjust the gas flow according to the actual temperature T 实 , control the gas output of the gas regulating module, and then control the firepower of the burner.

[0009] In some embodiments, the gas regulating module includes a gas valve with different gears, a driver and a zero position sensor, the gas outlet of the gas valve is connected to the burner, the driver and the zero position sensor are respectively arranged on the gas valve, and the controller is electrically connected to the driver and the zero position sensor respectively.

[0010] According to the above-mentioned method for controlling a stove, it is implemented through the following technical solutions:

[0011] A method for controlling a stove, characterized in that the method comprises the following steps:

[0012] S1: Get the boiling point temperature T of the area where the stove is located 沸 , and during the cooking process of the stove, obtain the equilibrium temperature Ta when the temperature of the pot bottom reaches thermal equilibrium;

[0013] S2: According to the equilibrium temperature Ta and boiling point temperature T 沸 , calculate the system deviation value △T;

[0014] S3: Calculate the actual temperature of the food being cooked T according to the system deviation value △T and the real-time temperature Ts of the pot bottom during cooking. 实 ;

[0015] S4: According to the actual temperature T 实 , control the fire power of the burner.

[0016] In some embodiments, in step S1, the boiling point temperature T of the area where the stove is located is obtained. 沸 Specifically, it includes: detecting the atmospheric pressure of the area where the stove is located by using an air pressure detection module; according to the detected atmospheric pressure, obtaining the boiling point temperature T of the area where the stove is located by looking up the boiling point-atmospheric pressure relationship table or calculating. 沸 .

[0017] In some embodiments, in step S1, obtaining the equilibrium temperature Ta when the bottom of the pot reaches thermal equilibrium during the cooking process of the stove specifically includes: heating the cooking material mainly composed of water; when the water reaches the boiling point, obtaining the equilibrium temperature Ta when the bottom of the pot reaches thermal equilibrium through the temperature detection module.

[0018] In some embodiments, the system deviation value ΔT is the difference between the equilibrium temperature Ta and the boiling point temperature T 沸 The difference between the actual temperature T 实 It is the difference between the real-time pot bottom temperature Ts and the system deviation value △T.

[0019] In some embodiments, in step S4, the actual temperature T 实, automatically control the firepower of the burner, specifically: set the boiling point temperature T 沸 With the actual temperature T 实 The difference is compared with the reference value, and the fire power of the burner is controlled based on the comparison result.

[0020] In some embodiments, the reference value comprises a maximum value, if (T 沸 -T 实 )>maximum value, adjust the burner power to maximum; if (T 沸 -T 实 )≤maximum value, adjust the burner power to minimum or medium.

[0021] In some embodiments, the reference value comprises a minimum value, if (T 沸 -T 实 )<minimum value, adjust the burner power to minimum; if minimum value<(T 沸 -T 实 )≤maximum value, adjust the burner power to medium.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] 1. The cooker of the present invention uses an air pressure detection module to obtain the boiling point temperature of the cooker area. This system uses deviation calibration to eliminate the temperature difference between the temperature detection module and the food being cooked, enabling accurate calculation of the actual temperature of the food being cooked, thereby improving the accuracy of temperature measurement of the food being cooked.

[0024] 2. The stove of the present invention automatically controls the firepower of the burner according to the accurately calculated actual temperature, thereby achieving an ideal cooking effect, ensuring heating efficiency, preventing the pot from overflowing, and improving the user's cooking experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a cooker in Example 1 of the present invention;

[0026] Figure 2 This is a connection block diagram of the stove temperature control system in Example 1 of the present invention;

[0027] Figure 3 is a graph showing the relationship between the real-time temperature of the pot bottom and the actual temperature of the food being cooked under standard atmospheric pressure in Example 1 of the present invention;

[0028] Figure 4 is a graph showing the relationship between the real-time temperature of the pot bottom and the actual temperature of the food being cooked under low atmospheric pressure in Example 1 of the present invention;

[0029] Figure 5This is a flow chart of a method for controlling a cooker in embodiment 2 of the present invention. DETAILED DESCRIPTION

[0030] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0031] Example 1

[0032] In this embodiment, the electrical connection includes an electrical connection and a communication connection, wherein the communication connection includes a wireless communication connection and a wired communication connection.

[0033] like Figure 1-2 As shown, this embodiment provides a stove with a precise temperature sensing function, including a stove body 1, a burner 2, a temperature detection module 3, an air pressure detection module 4 and a controller 5, wherein the burner 2 is mounted on the stove body 1 and has at least an inner ring fire and an outer ring fire. The temperature detection module 3 is mounted on the burner 2, and is used to detect the real-time temperature Ts of the pot bottom and / or the equilibrium temperature Ta when the pot bottom temperature reaches thermal equilibrium. The air pressure detection module 4 is mounted on the stove body 1, and is used to detect the atmospheric pressure in the area where the stove is located. The controller 5 is mounted inside the stove body 1, and is electrically connected to the air pressure detection module 4 and the temperature detection module 3, respectively. The controller 5 is used to obtain the boiling point temperature T of the area where the stove is located based on the atmospheric pressure detected by the air pressure detection module 4. 沸 , to eliminate the influence of different atmospheric pressures on the stove temperature control system; also used according to the equilibrium temperature Ta detected by the temperature detection module 3 and the boiling point temperature T 沸 , calculate the system deviation value △T, and calculate the actual temperature T of the cooked object based on the system deviation value △T and the real-time temperature Ts of the pot bottom 实 , so that the stove can adjust the temperature according to the actual temperature T 实 To automatically control the firepower of burner 2.

[0034] It can be seen that the stove of this embodiment obtains the boiling point temperature T of the area where the stove is located through the air pressure detection module 4. 沸 , and through the system deviation value △T calibration, the temperature difference between the temperature detection module 3 and the object being cooked is eliminated, and the actual temperature of the object being cooked is accurately calculated, thereby improving the temperature measurement accuracy of the object being cooked. 实 , automatically controls the firepower of burner 2, and achieves the ideal cooking effect through intelligent cooking, which can not only ensure heating efficiency, but also prevent the pot from overflowing, thereby improving the user's cooking experience.

[0035] See also Figure 2 , further comprising a gas regulating module 6 electrically connected to the controller 5, the gas regulating module 6 is connected to the burner 2 through a gas pipe (not shown in the figure), and the controller 5 is used to adjust the temperature according to the actual temperature T 实 To automatically control the gas output of the gas regulating module 6, and then automatically control the fire power of the burner 2, so that the actual temperature T of the food being cooked is achieved. 实 Cooperating with the gas regulating module 6, the fire power of the stove can be precisely controlled, thereby ensuring the cooking effect, preventing overflowing of the pot during the cooking process, and effectively ensuring the performance of the stove.

[0036] Specifically, the gas regulating module 6 includes a gas valve 61 with different gears, a driver 62 and a zero position sensor 63. The gas outlet of the gas valve 61 is connected to the burner 2 through a gas pipe. The driver 62 and the zero position sensor 63 are respectively arranged on the gas valve 61. The controller 5 is electrically connected to the driver 62 and the zero position sensor 63. In this way, according to the actual temperature T 实 Controller 5 can switch the gear position of gas valve 61 through driver 62 and zero position sensor 63, thereby automatically adjusting the amount of gas supplied to burner 2, achieving intelligent cooking and improving cooking effects. Preferably, driver 62 in this embodiment is a stepper motor to improve the accuracy of gas valve 61 gear adjustment.

[0037] See also Figure 3 Under standard atmospheric pressure, the temperature detection module 4 detects the bottom temperature of the cookware. When the water in the cookware reaches its boiling point, the boiling point of the water in the cookware is 100°C. At this time, the bottom temperature of the cookware reaches thermal equilibrium (i.e., reaches a stable period). The equilibrium temperature Ta detected by the temperature detection module 4 is higher than the boiling point of the water in the cookware. There is also a temperature difference between the actual temperature of the cookware inside the cookware and the equilibrium temperature Ta detected by the temperature detection module 4. This temperature difference = system deviation value ΔT = equilibrium temperature Ta - boiling point temperature T 沸 .

[0038] See also Figure 4 When the stove is located in a plateau, the atmospheric pressure in the area where the stove is located is low. When the water in the pot reaches its boiling point, the boiling point of the water in the food is lower than 100°C. At this time, the temperature at the bottom of the pot reaches thermal equilibrium (i.e., it reaches a stable period). The equilibrium temperature Ta detected by the temperature detection module 4 is higher than the boiling point of the water in the food. There is also a temperature difference between the actual temperature of the food in the pot and the equilibrium temperature Ta detected by the temperature detection module 4. This temperature difference = system deviation value ΔT = equilibrium temperature Ta - boiling point temperature T 沸 .

[0039] from Figure 3-4It can be seen that the atmospheric pressure value of the area where the stove is located is different, and the temperature difference between the cooked object and the temperature detection module 3 is also different. Therefore, the boiling point temperature T of water in the area where the stove is located is obtained by the atmospheric pressure detection module 4. 沸 , and combined with the equilibrium temperature Ta detected by the temperature detection module 3 to calculate the system deviation value △T, so that the temperature measurement of the cooked food by the stove is more accurate, improving the cooking effect while ensuring that the stove can adapt to different atmospheric pressure usage scenarios.

[0040] Example 2

[0041] See also Figure 5 This embodiment provides a method for controlling a cooker, which is applied to the cooker as described in Example 1. The control method includes the following steps:

[0042] S1: Get the boiling point temperature T of the area where the stove is located 沸 , and during the cooking process of the stove, obtain the equilibrium temperature Ta when the temperature of the pot bottom reaches thermal equilibrium;

[0043] Specifically, the boiling point temperature T of the area where the stove is located is obtained. 沸 Specifically, it includes: detecting the atmospheric pressure of the area where the stove is located by the air pressure detection module 4; according to the detected atmospheric pressure, obtaining the boiling point temperature T of the area where the stove is located by looking up the boiling point-atmospheric pressure relationship table or calculating. 沸 Thus, the boiling point temperature T 沸 Matching the atmospheric pressure in the area where the stove is located helps improve the temperature measurement accuracy of the stove.

[0044] In addition, during the cooking process of the stove, the equilibrium temperature Ta when the bottom temperature of the pot reaches thermal equilibrium is obtained, specifically including: the stove burner 2 heats the cooking material mainly composed of water; when the water reaches the boiling point, the equilibrium temperature Ta when the bottom temperature of the pot reaches thermal equilibrium is obtained through the temperature detection module 3.

[0045] S2: According to the equilibrium temperature Ta and boiling point temperature T 沸 , calculate the system deviation value △T;

[0046] S3: Calculate the actual temperature of the food being cooked T according to the system deviation value △T and the real-time temperature Ts of the pot bottom during cooking. 实 ;

[0047] S4: According to the actual temperature T 实 , automatically control the firepower of burner 2.

[0048] It can be seen that the control method of the stove in this embodiment is based on the boiling point temperature T of the area where the stove is located. 沸The system deviation value △T is calculated based on the equilibrium temperature Ta when the bottom temperature of the pot reaches thermal equilibrium, and the actual temperature T of the cooked object is calculated based on the system deviation value △T and the real-time temperature Ts of the bottom of the pot during cooking. 实 , thereby eliminating the temperature difference between the temperature detection module 3 and the object being cooked, reducing the impact of the plateau climate on cooking, and improving the temperature measurement accuracy of the object being cooked. In addition, by accurately calculating the actual temperature T 实 , automatically controls the firepower of burner 2 to achieve the purpose of intelligent cooking and ideal cooking effect, which can not only ensure heating efficiency, but also prevent the pot from overflowing, thereby improving the user's cooking experience.

[0049] Preferably, the system deviation value ΔT of this embodiment is the difference between the equilibrium temperature Ta and the boiling point temperature T 沸 The difference between the two, that is, △T = Ta-T 沸 The actual temperature T 实 is the difference between the real-time pot bottom temperature Ts and the system deviation value △T, that is, T 实 =Ts-△T.

[0050] Preferably, in step S4, the actual temperature T 实 , automatically control the firepower of burner 2, specifically: set the boiling point temperature T 沸 With the actual temperature T 实 The difference between the two values ​​is compared with the reference value, and the fire power of the burner 2 is controlled based on the comparison result. In this way, the boiling point temperature T is realized. 沸 With the actual temperature T 实 The difference between the two values ​​can be used for intelligent cooking, preventing the stove from overflowing during cooking and improving the ideal cooking effect and cooking experience.

[0051] Specifically, the reference value includes a maximum value, if (T 沸 -T 实 )>maximum value, the firepower of the burner 2 is adjusted to the maximum, that is, the gas valve 61 is adjusted to the high fire gear through the driver 62 and the zero position sensor 63, so that the stove burner 2 uses high fire for cooking; if (T 沸 -T 实 )≤maximum value, then adjust the firepower of burner 2 to minimum or medium fire, that is, adjust the gas valve 61 to medium fire or low fire position through driver 62 and zero position sensor 63, so that the stove can cook at medium fire or low fire. 沸 -T 实 ) is compared with the maximum value to realize the second-level fire power adjustment of the stove, ensure the heating efficiency and prevent the pot from overflowing.

[0052] More specifically, the reference value includes a minimum value, if (T 沸 -T实 )<minimum value, then adjust the firepower of burner 2 to minimum so that the stove can cook with low fire; if minimum value<(T 沸 -T 实 ) ≤ the maximum value, then adjust the power of burner 2 to medium, so that the stove uses medium heat for cooking. This allows for more precise power adjustment, further ensuring that the stove does not overflow during cooking, improving ideal cooking results and the user's cooking experience. In this embodiment, the maximum value is 20°C, and the minimum value is 5°C.

[0053] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A stove with a precise temperature sensing function, comprising a stove body (1), and a burner (2) having at least an inner ring fire and an outer ring fire, characterized in that: Also includes: A temperature detection module (3) is used to detect the real-time temperature Ts of the pot bottom and / or the equilibrium temperature Ta when the pot bottom temperature reaches thermal equilibrium; An air pressure detection module (4) for detecting the atmospheric pressure in the area where the stove is located; The controller (5) is electrically connected to the air pressure detection module (4) and the temperature detection module (3), and the controller (5) is used to obtain the boiling point temperature T of the area where the stove is located according to the atmospheric pressure. 沸 , also used according to the equilibrium temperature Ta and boiling point temperature T 沸 Calculate the system deviation value △T, and calculate the actual temperature T of the cooked object based on the system deviation value △T and the real-time temperature Ts of the pot bottom. 实 .

2. The cooker with precise temperature sensing function according to claim 1, characterized in that: The controller (5) further comprises a gas regulating module (6) electrically connected to the controller (5), the gas regulating module (6) being connected to the burner (2), and the controller (5) being configured to adjust the gas flow rate according to the actual temperature T 实 , controlling the gas output of the gas regulating module (6), thereby controlling the firepower of the burner (2).

3. The cooker with precise temperature sensing function according to claim 2, characterized in that: The gas regulating module (6) comprises a gas valve (61) with different gears, a driver (62) and a zero position sensor (63); the gas outlet of the gas valve (61) is connected to the burner (2); the driver (62) and the zero position sensor (63) are respectively arranged on the gas valve (61); and the controller (5) is respectively electrically connected to the driver (62) and the zero position sensor (63).

4. A method for controlling a stove, characterized in that: The following steps are involved: S1: Get the boiling point temperature T of the area where the stove is located 沸 , and during the cooking process of the stove, obtain the equilibrium temperature Ta when the temperature of the pot bottom reaches thermal equilibrium; S2: According to the equilibrium temperature Ta and boiling point temperature T 沸 , calculate the system deviation value △T; S3: Calculate the actual temperature of the food being cooked T according to the system deviation value △T and the real-time temperature Ts of the pot bottom during cooking. 实 ; S4: According to the actual temperature T 实 , control the fire power of the burner (2).

5. The method for controlling a cooker according to claim 4, characterized in that: In step S1, the boiling point temperature T of the area where the stove is located is obtained. 沸 Specifically, it includes: detecting the atmospheric pressure of the area where the stove is located by using an air pressure detection module (4); obtaining the boiling point temperature T of the area where the stove is located by looking up a boiling point-atmospheric pressure relationship table or calculating the atmospheric pressure according to the detected atmospheric pressure. 沸 .

6. The method for controlling a cooker according to claim 4, characterized in that: In step S1, during the cooking process of the stove, the equilibrium temperature Ta when the temperature of the pot bottom reaches thermal equilibrium is obtained, which specifically includes: heating the cooking material mainly composed of water; when the water reaches the boiling point, the equilibrium temperature Ta when the temperature of the pot bottom reaches thermal equilibrium is obtained through the temperature detection module (3).

7. The method for controlling a cooker according to claim 4, characterized in that: The system deviation value ΔT is the difference between the equilibrium temperature Ta and the boiling point temperature T 沸 The difference between the actual temperature T 实 It is the difference between the real-time pot bottom temperature Ts and the system deviation value △T.

8. The method for controlling a cooker according to claim 4, characterized in that: In step S4, the actual temperature T 实 , automatically controls the firepower of the burner (2), specifically: the boiling point temperature T 沸 With the actual temperature T 实 The difference is compared with a reference value, and the fire power of the burner (2) is controlled based on the comparison result.

9. The method for controlling a cooker according to claim 8, characterized in that: The reference value includes a maximum value, if (T 沸 -T 实 )>maximum value, then adjust the firepower of burner (2) to maximum; if (T 沸 -T 实 )≤maximum value, adjust the fire power of the burner (2) to minimum or medium fire.

10. The method for controlling a cooker according to claim 9, characterized in that: The reference value includes a minimum value, if (T 沸 -T 实 )<minimum value, adjust the firepower of burner (2) to minimum; if minimum value<(T 沸 -T 实 )≤maximum value, adjust the fire power of the burner (2) to medium fire.

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