Temperature control probe, burner, stove and pot status detection method

Abstract

The present invention discloses a temperature control probe, a burner, a stove and a method for detecting the state of a pot, which comprises a support rod and a mounting seat and a temperature measuring component arranged at the upper end of the support rod, wherein the lower end of the support rod is inserted into the mounting seat, and further comprises a detection mechanism, wherein the detection mechanism is connected to the support rod and is arranged away from the temperature measuring component, wherein the detection mechanism is electrically connected to a control module, and the detection mechanism is used to detect the inertia of the support rod moving along the extension direction of the support rod. The present invention distinguishes different use states of the pot by detecting the inertia or downward pressure of the support rod by the detection mechanism, and can timely protect and realize the anti-dry burning function of the temperature control probe when the medium in the pot boils according to different use states of the pot, and prevent the temperature control probe from misjudging and turning off the fire when the user flips the pot to cook, thereby improving the user's use experience.

Description

Technical Field

[0001] The invention particularly relates to a temperature control probe, a burner, a stove and a pot state detection method. Background Art

[0002] The temperature control probe is used to detect the bottom temperature of the pot when it is heated and to close the burner's fire hole in time after the water in the pot evaporates to prevent the pot from burning dry. The temperature control probe includes a temperature measuring component and a support rod. The support rod is connected to the burner's mounting seat and supports the temperature measuring component to the bottom of the pot through the mounting seat.

[0003] Normally, when the user is cooking, the water in the pot boils after being heated. The boiling water vibrates and transmits the vibration to the temperature measuring component and the support rod through the pot. This vibration is different from the vibration caused by the pot being temporarily separated from the temperature control probe when the user flips the pot while cooking. When the pot is being flipped, the high-temperature smoke generated by the burning of the fire hole of the burner will enter the surrounding side of the temperature measuring component when the pot is temporarily separated from the temperature control probe, causing the temperature detected by the temperature measuring component to rise sharply, thereby causing the temperature control probe to misjudge that the user is flipping the pot to cook and close the fire hole. The burner accidentally goes out, resulting in a poor cooking experience for the user. There is an urgent need for a temperature control probe that can recognize that the water in the pot is boiling when the user is flipping the pot or heating normally and prevent the burner from accidentally going out. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the cooker is separated from the temperature measuring component, causing high-temperature smoke to enter the outer peripheral side of the temperature measuring component and causing the temperature measuring component to mistakenly judge that the flame is out, and to provide a temperature control probe, a burner, a stove and a method for detecting the status of the cooker.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A temperature control probe comprises a support rod and a mounting seat, and a temperature measuring component arranged at the upper end of the support rod, the lower end of the support rod is inserted into the mounting seat, and also comprises a detection mechanism, the detection mechanism is connected to the support rod and is arranged away from the temperature measuring component, the detection mechanism is electrically connected to a control module, and the detection mechanism is used to detect the inertia of the support rod moving along the extension direction of the support rod.

[0007] In the present solution, the detection mechanism is arranged on the support rod so that the detection mechanism follows the movement of the support rod, and the detection mechanism correspondingly detects the inertia of the support rod. When the inertia reaches a first preset frequency, that is, the medium in the cook reaches a boiling state, the detection mechanism transmits a signal to the control module to turn off the burner to prevent the cook from dry burning. When the inertia does not reach the first preset frequency, that is, the user is in the cooking state of flipping the pot, the detection mechanism detects this situation and transmits the user flipping the pot signal to the control module, and the control module does not turn off the burner, thereby preventing the burner from accidentally going out while the user is cooking, thereby improving the user experience.

[0008] Preferably, the control module is signal-connected to the temperature measuring component.

[0009] In this solution, the control module is also connected to the temperature measuring component signal. When the inertia of the support rod reaches the first preset frequency, the temperature rise data of the temperature measuring component is used to further determine whether the user is cooking in an overturned pot or the medium in the pot has reached a boiling state, thereby improving the accuracy of the temperature control probe's anti-dry burning function.

[0010] Preferably, the detection mechanism is an inertial sensor, a cavity is provided in the mounting seat, and the detection mechanism is sleeved on the support rod and located in the cavity.

[0011] In this solution, the detection mechanism is an inertial sensor, and it meets the requirement of the detection mechanism to detect the inertial movement of the support rod. By arranging the inertial sensor in the cavity of the mounting seat, the inertial sensor is away from the temperature measuring component of the temperature control probe, that is, the inertial sensor is away from the high-temperature flue gas generated by the combustion of the burner, thereby avoiding the inertial sensor from being affected by the high temperature and malfunctioning.

[0012] Preferably, a partition plate is further provided on a side of the cavity away from the temperature measuring component, the support rod passes through the partition plate and the detection mechanism is located on a side of the partition plate away from the temperature measuring component.

[0013] In this solution, a partition plate is provided in the cavity and has a through hole, the support rod is passed through the through hole and the detection mechanism is located on the side of the partition plate away from the temperature measuring component, that is, the detection mechanism is located below the partition plate. The partition plate further enhances the effect of isolating high-temperature flue gas to prevent the detection mechanism from malfunctioning due to high temperature.

[0014] Preferably, an elastic unit is further included, wherein the elastic unit is arranged in the cavity and a first end of the elastic unit abuts against the partition plate, the elastic unit is sleeved on the outer peripheral side of the support rod and a second end of the elastic unit is fixedly connected to the support rod.

[0015] In the present solution, the elastic unit is arranged in the cavity and is used to provide the support rod with a force to rebound along the extension direction of the support rod, so that the temperature measuring component of the temperature control probe can continue to be close to the bottom of the cookware within a certain stroke, thereby improving the temperature measurement accuracy. One end of the elastic unit abuts against the partition plate, and the other end abuts against the inner wall of the cavity, that is, the elastic unit is arranged in the mounting seat and away from the temperature measuring component, which can also avoid high temperature damage to the elastic unit and increase the service life of the elastic unit.

[0016] Preferably, the detection mechanism is a pressure sensor, an elastic unit is also provided in the mounting seat and the elastic unit is connected to the support rod so that the support rod can rebound along the downward pressing direction of the cookware, the detection mechanism is connected to the support rod and the detection end of the detection mechanism abuts against one end of the elastic unit close to the temperature measuring component and receives the rebound signal of the elastic unit.

[0017] In the present solution, the detection mechanism is a pressure sensor. When the support rod moves along the extension direction of the support rod, the detection end of the pressure sensor moves synchronously with the support rod and squeezes the elastic unit that provides rebound force, thereby detecting the rebound force of the elastic unit. The rebound force is equal to the downward pressure of the support rod. The detection mechanism judges the size of the downward pressure to distinguish whether the medium in the cookware has reached a boiling state or the user is in a cooking state of flipping the pot. When the downward pressure is small, it is judged that the medium in the cookware has reached a boiling state. When the downward pressure is large, it is judged that the user is flipping the pot or performing other cooking actions, thereby improving the accuracy of judging different states of the cookware.

[0018] Preferably, a heat insulation component is provided around the temperature measuring component.

[0019] In the present solution, the temperature measuring component is located at the upper end of the support rod, the lower end of the support rod extends into the mounting seat and is resiliently connected to the mounting seat through an elastic unit. The service life of the elastic unit is increased by arranging the elastic unit in the mounting seat away from the temperature measuring component, and a heat insulation component is provided in the space originally used to accommodate the elastic unit in the temperature measuring component. The heat insulation component is arranged around the circumference of the temperature measuring plate of the temperature measuring component to prevent high-temperature flue gas from affecting the temperature detection of the temperature measuring plate, thereby improving the temperature measurement accuracy of the temperature measuring component.

[0020] A burner comprises a temperature control probe as described in any one of the above items.

[0021] In the present solution, the burner using the temperature control probe can detect the movement inertia of the support rod and be electrically connected to the control module through a detection mechanism. When the inertia reaches a first preset frequency, it is determined that the medium in the pot has reached a boiling state and the burner is promptly shut down through the control module, thereby realizing the anti-dry burning function of the temperature control probe. This can distinguish the state of the user flipping the pot to cook when the inertia has not reached the first preset frequency, thereby reducing the situation where the burner mistakenly judges that the fire is turned off because the medium in the pot has not reached a boiling state.

[0022] A stove comprises the aforementioned burner.

[0023] In the present solution, the stove using the burner can detect the movement inertia of the support rod and be electrically connected to the control module through a detection mechanism. When the inertia reaches a first preset frequency, it is determined that the medium in the pot has reached a boiling state and the burner is promptly turned off through the control module, thereby realizing the anti-dry burning function of the temperature control probe. This can distinguish the state of the user flipping the pot to cook when the inertia has not reached the first preset frequency, thereby reducing the situation where the burner mistakenly judges that the fire is turned off because the medium in the pot has not reached a boiling state.

[0024] A method for detecting the state of a cookware is implemented by using any of the temperature control probes described above, and specifically comprises the following steps:

[0025] S1, detecting the vibration data of the inertia or downward force of the support rod by the detection mechanism;

[0026] S2. If the vibration data reaches a first preset frequency, it is determined that the cookware is in a boiling state.

[0027] In the present solution, the temperature control probe is used to detect the inertia of the support rod. The inertia or downward pressure of the support rod after being squeezed by the cookware is detected by the detection mechanism, and the vibration data generated by the inertia or downward pressure is judged. The data is compared by setting a first preset frequency. When the vibration data reaches the first preset frequency, it is judged that the medium in the cookware is in a boiling state, thereby improving the accuracy of the temperature control probe in judging the state of the medium in the cookware.

[0028] Preferably, in the step of determining whether the cookware is in a boiling state: if the vibration data reaches a first preset frequency, the temperature rise data of the temperature measuring component of the temperature control probe is obtained; if the temperature rise data is higher than the first preset temperature rise data range, it is determined that the medium in the cookware is in a boiling state.

[0029] In the present scheme, when the inertia of the support rod driven by the cookware reaches the first preset frequency, it is further necessary to make a comprehensive judgment based on the temperature rise data of the cookware within a certain period of time measured by the temperature measuring component, that is, the data of the temperature rise rate, so as to improve the accuracy of the judgment of the detection mechanism and avoid the situation where the detection mechanism makes a misjudgment due to the excessive inertia or downward pressure of the medium in the cookware in a boiling state.

[0030] Preferably, when the medium in the cooker is in a boiling state, the gas valve of the cooker is closed through the control module of the temperature control probe.

[0031] In this solution, after comprehensive judgment and the detection mechanism determines that the medium in the cooker is in a boiling state, the detection mechanism transmits the signal that the medium in the cooker is in a boiling state to the control module, and closes the gas valve of the stove through the control module to realize the anti-dry burning function of the stove.

[0032] Preferably, the vibration data is determined based on the number of vibrations and the amount of vibration of the cookware within a certain period of time. When the vibration data does not reach the first preset frequency, the temperature measuring component determines that the temperature rise value of the temperature rise data is greater than the temperature rise value of the temperature rise data when the vibration data reaches the first preset frequency.

[0033] In this solution, when the inertia of the pot driving the support rod to move does not reach the first preset frequency, the detection mechanism determines that the medium in the pot has not reached a boiling state, but is caused by the inertia and downward pressure caused by the user flipping the pot to cook or moving the pot. Since the user flips the pot, the bottom of the pot will separate from the temperature measuring component, and a gap will be formed between the temperature measuring component and the bottom of the pot. The gap will disappear when the bottom of the pot abuts against the temperature measuring component again. When the gap is formed, the high-temperature smoke generated by the combustion of the stove enters the gap from the outer peripheral side of the temperature measuring component and heats the temperature measuring component, so that The temperature rise data of the temperature measuring component increases, and the temperature rises faster. When the temperature rise data reaches a certain value, the temperature measuring component will judge that the medium in the pot has reached a boiling state and close the gas valve of the stove through the control module to realize the anti-dry burning function of the stove. In order to prevent the stove from accidentally turning on the anti-dry burning function when the user flips the pot to cook, resulting in accidental flameout, the temperature rise data judgment value of the temperature measuring component whose vibration data does not reach the first preset frequency is increased accordingly to avoid the temperature measuring component misjudging that the medium in the pot has reached a boiling state due to excessively fast temperature rise, thereby preventing the user from accidentally stalling the pot when flipping the pot.

[0034] A method for detecting a state of a cookware comprises the following steps:

[0035] Detect the inertia or downward force of the support rod of the temperature control probe in contact with the cookware;

[0036] If the vibration data of the inertia or the downward force reaches a first preset frequency, it is determined that the medium in the cooker is in a boiling state.

[0037] In this solution, other methods are used to detect the inertia or downward pressure of the support rod, and the detected vibration data is compared to see whether it reaches the first preset frequency, and it is accordingly known whether the medium in the cookware is in a boiling state. If it is known that the medium in the cookware is in a boiling state, a prompt is given to the user or other further functions are performed.

[0038] Preferably, after determining that the medium in the cooker is in a boiling state, the gas valve of the cooker is controlled to be closed.

[0039] In this solution, after knowing that the medium in the pot is in a boiling state, the gas valve of the cooker is closed to prevent the medium in the pot from dry burning, thereby realizing the anti-dry burning function of the cooker.

[0040] The positive and progressive effect of the present invention is that: the present invention arranges the detection mechanism on the support rod so that the detection mechanism follows the movement of the support rod, and the detection mechanism correspondingly detects the inertia or downward pressure of the support rod, and the inertia or downward pressure is the vibration data detected by the detection mechanism. The detection mechanism is electrically connected to the control module. When the vibration data reaches the first preset frequency, that is, the medium in the cookware reaches a boiling state, the detection mechanism transmits a signal to the control module to turn off the burner to prevent the cookware from dry burning. When the vibration data does not reach the first preset frequency, that is, the user is in the state of flipping the pot for cooking, the detection mechanism detects this situation and transmits the user flipping the pot signal to the control module, and the control module does not turn off the burner to prevent the burner from accidentally extinguishing when the user is cooking. It can not only accurately distinguish the different usage states of the cookware, but also can timely protect and realize the anti-dry burning function of the temperature control probe when the medium in the cookware boils according to different usage states of the cookware, and prevent the temperature control probe from misjudging and turning off the fire when the user flips the pot for cooking, thereby improving the user's usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic structural diagram of a cooker according to Embodiment 1 of the present invention.

[0042] Figure 2 This is a schematic diagram of the structure of the burner of Example 1 of the present invention.

[0043] Figure 3 Schematic diagram of the position relationship between the mounting base and the support rod of Example 1 of the present invention.

[0044] Figure 4 This is a three-dimensional diagram of the mounting base of Example 1 of the present invention.

[0045] Figure 5 This is a top view of the burner of Example 2 of the present invention.

[0046] Figure 6 for Figure 5 AA section view.

[0047] Figure 7 This is a flow chart of the temperature measurement method of Example 3 of the present invention.

[0048] Description of reference numerals:

[0049] Support rod 1

[0050] Mounting Block 2

[0051] Cavity 21

[0052] Divider 22

[0053] Temperature measurement component 3

[0054] Temperature measuring board 31

[0055] Testing agency 4

[0056] Elastic unit 5

[0057] Cooker 100 DETAILED DESCRIPTION

[0058] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0059] Example 1

[0060] This embodiment provides a temperature control probe, the specific structure is as follows Figure 2 , Figure 3 and Figure 4 As shown, it includes a support rod 1 and a mounting seat 2 and a temperature measuring component 3 arranged at the upper end of the support rod 1, the lower end of the support rod 1 is inserted into the mounting seat 2, the temperature measuring component 3 is located at the end of the temperature control probe that contacts the cookware, when the bottom of the cookware abuts against the temperature measuring component 3, the support rod 1 moves along the extension direction of the support rod 1 and partially shrinks into the mounting seat 2, the temperature measuring component 3 realizes temperature measurement by fitting to the bottom of the cookware, the temperature control probe also includes a detection mechanism 4, the detection mechanism 4 is connected to the support rod 1 and is located on the outer surface of the support rod 1, the detection mechanism 4 is arranged away from the temperature measuring component 3, that is, the detection mechanism 4 is located on the side of the support rod 1 away from the temperature measuring component 3, so as to avoid the high-temperature smoke generated by the combustion near the temperature measuring component 3 affecting the sensitivity and accuracy of the detection mechanism 4.

[0061] Among them, the detection mechanism 4 is electrically connected to the control module, and the control module is used to open or close the gas valve connected to the temperature control probe. By arranging the detection mechanism 4 on the support rod 1, the detection mechanism 4 follows the movement of the support rod 1. The detection mechanism 4 correspondingly detects the inertia of the support rod 1. When the inertia reaches the first preset frequency, that is, the medium in the pot reaches a boiling state, for example, when the medium in the pot is water, the detection mechanism 4 transmits a signal to the control module so that the control module enters an anti-dry boiling mode. Since the boiling point of water is about 100°C, compared with the ordinary anti-dry burning mode, the pot is considered to be in a dry burning state and the burner is turned off only when the temperature measured reaches about 290°C. After the detection mechanism 4 identifies that the inertia reaches the first preset frequency, the control module will turn off the burner when the temperature measured by the temperature measuring component 3 is lower than 290°C. For example, if the control module believes that the pot is in a boiling state based on the signal of the detection mechanism 4, if the temperature measuring component 3 measures the pot bottom temperature to be 120°C, the control module believes that the pot is in a dry-burning state, and then turns off the burner faster than the existing control scheme. Of course, the case in which the temperature measuring component 3 measures the pot bottom temperature to be 120°C, which means that the water in the pot is considered to be dry, is only an example. Specifically, after the detection mechanism 4 believes that the pot is in a boiling state, how to more quickly identify that the pot is in a dry-burning state based on the pot bottom temperature belongs to the scope of the prior art and will not be repeated here.

[0062] That is to say, when the water in the pot is dried up, the scheme of the structure and control principle in this embodiment can be used to close the gas valve faster based on the information provided by the detection mechanism 4 without waiting for the pot to continue to rise to an extremely high temperature, so as to prevent the pot from being dry-burned and also prevent the pot from being burned or burned through. The first preset frequency is obtained based on multiple tests, for example, the first preset frequency is to detect a displacement of 10-70μm for more than 20 times in 30 seconds; the travel of the temperature control probe moving by pressing down the pot is generally set between 0-24mm, and after multiple tests, taking the common pots on the market as an example, the displacement of the temperature control probe when cooking and flipping the pot is generally about 10mm. It can be seen from the numerical values ​​and numerical units of the above two displacements that the numerical interval range of the displacement corresponding to the first preset frequency and the numerical interval range of the displacement generated by the movement and placement of the pot are quite different, and the two will not be confused in the actual implementation process.

[0063] When the inertia does not reach the first preset frequency, that is, the user is in the cooking state of flipping the pot, the pot briefly separates from the temperature measuring component 3 and then re-attaches to the temperature measuring component 3, causing the support rod 1 to vibrate. The detection mechanism 4 detects this and transmits the user's flipping pot signal to the control module. The control module will not turn off the burner, preventing the burner from accidentally going out while the user is cooking, thereby improving the user's experience.

[0064] In this embodiment, the control module is also connected to the temperature measuring component 3 by signal. The temperature measuring component 3 is in contact with the bottom of the cookware through the temperature measuring plate 31 to perform contact temperature measurement. The temperature measuring plate 31 identifies the measured temperature data and transmits the signal to the control module to realize the anti-dry burning function of the temperature control probe. This is the prior art and will not be elaborated on here. The difference is that when the inertia of the support rod 1 reaches the first preset frequency, it is necessary to further judge whether the user is cooking by flipping the pot or when the medium in the pot is dried up through the temperature rise data of the temperature measuring component 3. The temperature rise data is the temperature rise at the bottom of the pot within a certain period of time. In this embodiment, it is set to a temperature rise of more than 30°C within 2 seconds. The temperature rise data is obtained based on multiple tests. After detecting the inertia of the support rod 1, the detection mechanism 4 needs to make another judgment based on the temperature rise data of the bottom of the pot measured by the temperature measuring component 3, and by increasing the judgment of the temperature rise data of the temperature measuring component, the accuracy of judging different states of the pot can be improved. For example, when the inertia of the support rod 1 reaches the first preset frequency and the temperature data in the same period remains stable (for example, the change is within ±3°C), it can more accurately judge that the medium in the pot has reached a boiling state.

[0065] Furthermore, the detection mechanism 4 is an inertial sensor, which is in the shape of a rice grain and smaller than the diameter of the support rod 1. The inertial sensor is arranged to fit the outer surface of the support rod 1. The inertial sensor can detect the inertia or displacement of the support rod 1 caused by the vibration of the cookware, and two legs are arranged at the bottom of the mounting seat 2, which are connected to the bottom box of the stove through the two legs to support the temperature measuring component 3 and the support rod 1. The mounting seat 2 is a cylindrical member and has a cavity 21 inside. The cavity 21 is cylindrical and the extension direction of the cavity 21 is consistent with the height of the mounting seat 2. A mounting hole is opened at the end of the mounting seat 2 close to the temperature measuring component 3, and the mounting hole is connected to the cavity 21. The lower end of the support rod 1 is inserted into the cavity 21 through the mounting hole, and the detection mechanism 4 is arranged on the part of the support rod 1 located in the cavity 21. The high-temperature flue gas generated by the combustion on the outer peripheral side of the temperature measuring component 3 is resisted by the end of the mounting seat 2 close to the temperature measuring component 3, so as to avoid the inertial sensor from being affected by the high temperature and failing.

[0066] Among them, a partition plate 22 is also provided on the side of the cavity 21 away from the temperature measuring component 3. The partition plate 22 is a circular plate and is located at the lower end of the mounting seat 2. The upper surface of the partition plate 22 is the inner wall of the cavity 21. The partition plate 22 is provided with a through hole for the support rod 1 to pass through. By arranging the detection mechanism 4 on the lower surface of the partition plate 22, the distance between the detection mechanism 4 and the temperature measuring component 3 is further increased, and the partition plate 22 is used to further enhance the effect of isolating the high-temperature flue gas, thereby preventing the detection mechanism 4 from malfunctioning due to the influence of high temperature.

[0067] In this embodiment, an elastic unit 5 is included. The elastic unit 5 is a spring and is sleeved on the outer peripheral side of the support rod 1. The elastic unit 5 is arranged in the cavity 21 and the first end of the elastic unit 5 abuts on the partition plate 22. The second end of the elastic unit 5 is fixedly connected to the outer peripheral side of the support rod 1 to provide the support rod 1 with a force to rebound along the extension direction of the support rod 1, thereby achieving that the temperature measuring component 3 of the temperature control probe can continue to be close to the bottom of the pot within a certain stroke, thereby improving the temperature measurement accuracy. This is a prior art and will not be described in detail here. The elastic unit 5 is arranged in the cavity 21 of the mounting seat 2. Compared with the prior art in which the spring is arranged below the temperature measuring component 3, the elastic unit 5 is located in the mounting seat 2, which not only enables the support rod 1 to have a rebound ability, but also enables the spring to be away from the temperature measuring component 3, thereby avoiding high temperature damage to the elastic unit 5 and improving the service life of the temperature control probe.

[0068] In addition, since the position of the spring originally arranged on the side and below the temperature measuring component 3 is moved down to the mounting seat 2, an insulation component is arranged in the position where the spring was originally installed, that is, the insulation component is arranged around the side of the temperature measuring plate 31 of the temperature measuring component 3, thereby preventing high-temperature flue gas from heating the side of the temperature measuring plate 31 and transferring heat to the temperature measuring plate 31, avoiding affecting the temperature detection of the temperature measuring plate 31, and improving the temperature measurement accuracy of the temperature measuring component 3.

[0069] This embodiment also provides a burner, which includes the temperature control probe as described above.

[0070] Specifically, the burner using the temperature control probe can detect the movement inertia of the support rod 1, and is electrically connected to the control module through the detection mechanism 4. When the inertia reaches the first preset frequency, it is judged that the medium in the pot has reached a boiling state and timely feedback is given to the control module, thereby realizing the anti-dry boiling function of the temperature control probe. In addition, by identifying the state of the user flipping the pot to cook when the inertia does not reach the first preset frequency, the situation of misjudging the fire is reduced.

[0071] like Figure 1 As shown, this embodiment further provides a stove 100, and the stove 100 includes the above-mentioned burner.

[0072] Specifically, the stove 100 using the burner can detect the movement inertia of the support rod 1, and is electrically connected to the control module through the detection mechanism 4. When the inertia reaches the first preset frequency, it is judged that the medium in the pot has reached a boiling state and timely feedback is given to the control module, thereby realizing the anti-dry boiling function of the temperature control probe. In addition, by identifying the state of the user flipping the pot to cook when the inertia does not reach the first preset frequency, the situation of misjudging the fire is reduced.

[0073] This embodiment also provides a method for detecting a cookware state, which comprises the following steps:

[0074] Detecting the inertia or downward pressure of the support rod 1 of the temperature control probe in contact with the cookware;

[0075] If the vibration data of the inertia or downward force reaches the first preset frequency, it is determined that the medium in the cookware is in a boiling state.

[0076] Specifically, the inertia or downward pressure of the support rod 1 is detected by the detection method in the prior art. The detection method can be laser ranging detection, or other methods to detect the inertia or downward pressure of the support rod 1. The purpose is to detect the vibration data of the support rod 1, and compare whether the detected vibration data is equal to the first preset frequency, and accordingly know whether the medium in the cookware is in a boiling state. If the medium in the cookware is in a boiling state, the user is prompted accordingly, such as a dry burning alarm, or other next steps are performed.

[0077] In the cooker state detection method, after determining that the medium in the cooker is in a boiling state, the gas valve of the cooker 100 is controlled to be closed more timely before the medium is burned dry.

[0078] Specifically, after knowing that the medium in the pot is in a boiling state, a sharp temperature change at the bottom of the pot is detected, and the gas valve of the stove 100 is closed to prevent the medium in the pot from dry burning, thereby realizing the anti-dry burning function of the stove, thereby improving the safety of the stove.

[0079] Example 2

[0080] The structure of the temperature control probe in this embodiment is basically the same as that of the temperature control probe in Embodiment 1, except that Figure 5 , Figure 6 As shown, the detection mechanism 4 is a pressure sensor, which is provided with a detection end and is located in the cavity 21. The extension direction of the support rod 1 is the direction in which the cookware presses the support rod 1 down. The detection end of the pressure sensor is located at the upper end of the elastic unit 5, that is, the end of the elastic unit 5 close to the temperature measuring component 3.

[0081] When the support rod 1 moves along the extension direction of the support rod 1, the detection end of the pressure sensor moves synchronously with the support rod 1 and squeezes the elastic unit 5. The elastic unit 5 is squeezed and compressed to generate a rebound force. The rebound force of the elastic unit 5 is detected by the detection end of the pressure sensor. The rebound force is equal to the downward pressure of the support rod 1, so as to distinguish whether the medium in the cookware has reached a boiling state or the user is in a cooking state of flipping the pot. When the downward pressure changes slightly and continuously, it is known that the medium in the cookware has reached a boiling state. When the downward pressure alternates from 0 to a constant value in a short time, it is determined that the user is flipping the pot or performing other cooking actions, thereby achieving accurate judgment of different states of the cookware.

[0082] Example 3

[0083] like Figure 7 As shown, the temperature measurement method of the temperature control probe in this embodiment is implemented by the temperature control probe in Example 1 or Example 2. In this embodiment, the method specifically includes the following steps:

[0084] S1, detecting the vibration data of the inertia or downward force of the support rod 1 by the detection mechanism 4;

[0085] S2. If the vibration data reaches a first preset frequency, it is determined that the pot is in a boiling state.

[0086] Specifically, the temperature control probe is used to detect the inertia of the support rod 1, and the detection mechanism 4 is used to detect the inertia or downward pressure of the support rod 1 after being squeezed by the cookware. The detection mechanism 4 detects vibration data of the inertia or downward pressure, which is determined by time, vibration amount and vibration data, and judges the vibration data generated by the inertia or downward pressure, and compares it by setting a first preset frequency. When the vibration data reaches the first preset frequency, it is judged that the medium in the cookware is in a boiling state, thereby improving the accuracy of the temperature control probe in judging the state of the medium in the cookware.

[0087] Furthermore, in the step of determining whether the cookware is in a boiling state: if the vibration data reaches a first preset frequency, the temperature rise data of the temperature measuring component 3 of the temperature control probe is obtained; if the temperature rise data is higher than the first preset temperature rise data range, it is determined that the medium in the cookware is in a boiled state and then dried up, and the fire needs to be turned off in time for protection.

[0088] Specifically, when the vibration data reaches the first preset frequency, it is necessary to further judge whether the medium in the pot is dried up in combination with the temperature rise data of the pot measured by the temperature measuring component 3 within a certain period of time, that is, to make a comprehensive judgment based on the data of the temperature rise rate. In this embodiment, it is set to a temperature rise of more than 30°C within 2 seconds. The temperature rise data is obtained based on multiple tests, so as to improve the accuracy of the judgment of the detection mechanism 4 and avoid the situation where the inertia or downward pressure of the medium in the pot is too large in a boiling state, resulting in a misjudgment of the detection mechanism 4.

[0089] Furthermore, when the medium in the pot is in a boiling state but before the medium is burned dry, the control module through the temperature control probe can close the gas valve of the cooker in time.

[0090] Specifically, after comprehensive judgment and detection mechanism 4 determines that the medium in the cooker is in a boiling state, detection mechanism 4 transmits the signal that the medium in the cooker is in a boiling state to the control module, and the temperature control probe enters the anti-dry boiling mode. When the medium is dried up, temperature measuring component 3 measures that the temperature rise data of the cooker rises sharply and is higher than the first preset temperature rise data range. Temperature measuring component 3 transmits the signal to the control module, and the control module closes the gas valve faster to realize the anti-dry burning function of stove 100.

[0091] In this embodiment, the vibration data is determined based on the number of times and the amount of vibration of the cookware within a certain period of time, and the first preset frequency is obtained based on multiple tests. For example, the first preset frequency is to continuously detect a displacement of 10-70 μm for more than 20 times within 30 seconds. When the vibration data does not reach the first preset frequency, the temperature measuring component 3 determines that the temperature rise value of the temperature rise data is greater than the temperature rise value of the temperature rise data when the vibration data reaches the first preset frequency.

[0092] Specifically, when the vibration data does not reach the first preset frequency, the detection mechanism 4 determines that the medium in the cookware has not reached a boiling state, and when the displacement in the vibration data alternates between 0 and a fixed value (determined according to the shape of the different pots), it is due to the inertia and downward pressure brought by the user flipping the pot for cooking or moving the pot. Since the user flips the pot, the bottom of the pot will separate from the temperature measuring component 3, and a gap will be formed between the temperature measuring component 3 and the bottom of the pot, which will disappear when the bottom of the pot is re-contacted with the temperature measuring component 3. When the gap is formed, the high-temperature smoke generated by the combustion of the stove enters the gap from the outer peripheral side of the temperature measuring component 3 and heats the temperature measuring component 3, so that the temperature rise data of the temperature measuring component 3 increases, and the temperature rise The temperature rises faster. Since the vibration data of the user's flipping the pot during cooking cannot reach the first preset frequency, the vibration data must be judged before the temperature rise data is judged. When the temperature rise data reaches a certain value, the temperature measuring component 3 will judge that the medium in the pot has reached a boiling state and close the gas valve of the cooker through the control module to realize the anti-dry burning function of the cooker. In order to prevent the cooker 100 from mistakenly turning on the anti-dry burning function and causing accidental flameout when the user is flipping the pot to cook, the temperature rise data judgment value of the temperature measuring component 3 when the vibration data does not reach the first preset frequency is increased accordingly, so as to avoid the temperature measuring component 3 from misjudging that the medium in the pot has reached a boiling state due to too fast temperature rise when the user is flipping the pot to cook, thereby preventing the user from accidentally stalling the pot.

[0093] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A method for detecting the state of a cookware, implemented by using a temperature control probe, wherein the temperature control probe comprises a support rod and a mounting seat and a temperature measuring component arranged at the upper end of the support rod, wherein the lower end of the support rod is inserted into the mounting seat, and wherein: The temperature control probe further includes a detection mechanism, which is connected to the support rod and is arranged away from the temperature measurement component, and is electrically connected to the control module, and is used to detect the inertia of the support rod moving along the extension direction of the support rod; The cookware status detection method specifically comprises the following steps: S1, detecting the vibration data of the inertia or downward force of the support rod by the detection mechanism; S2. If the vibration data reaches a first preset frequency, obtaining temperature rise data of the temperature measuring component of the temperature control probe, and if the temperature rise data is higher than a first preset temperature rise data range, determining that the pot is in a boiling state; Among them, the vibration data is determined based on the number of times and the amount of vibration of the cookware within a certain period of time. When the vibration data does not reach the first preset frequency, the temperature measuring component determines that the temperature rise value of the temperature rise data is greater than the temperature rise value of the temperature rise data when the vibration data reaches the first preset frequency.

2. The method for detecting the state of a cookware according to claim 1, characterized in that: The control module is signal-connected to the temperature measuring component.

3. The method for detecting the state of a cookware according to claim 2, characterized in that: The detection mechanism is an inertial sensor, a cavity is provided in the mounting seat, and the detection mechanism is sleeved on the support rod and located in the cavity.

4. The method for detecting the state of a cookware according to claim 3, characterized in that: A partition plate is also provided on a side of the cavity away from the temperature measuring component, the support rod passes through the partition plate, and the detection mechanism is located on a side of the partition plate away from the temperature measuring component.

5. The method for detecting the state of a cookware according to claim 4, characterized in that: It also includes an elastic unit, which is arranged in the cavity and a first end of which abuts against the partition plate, and the elastic unit is sleeved on the outer peripheral side of the support rod and a second end of the elastic unit is fixedly connected to the support rod.

6. The method for detecting the state of a cookware according to claim 1, characterized in that: The detection mechanism is a pressure sensor, and an elastic unit is also provided in the mounting seat. The elastic unit is connected to the support rod so that the support rod can rebound along the downward pressing direction of the cookware. The detection mechanism is connected to the support rod and the detection end of the detection mechanism abuts against one end of the elastic unit close to the temperature measuring component, and receives the rebound signal of the elastic unit.

7. The method for detecting the state of a cookware according to claim 1, characterized in that: A heat insulation component is arranged around the temperature measuring component.

8. The method for detecting the state of a cookware according to claim 1, wherein: When the medium in the cooker is in a boiling state, the gas valve of the cooker is closed through the control module of the temperature control probe.

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