Temperature adjusting method of kitchen range temperature probe and kitchen range
By incorporating a cooling device and a dynamic compensation mechanism into the temperature probe, the problem of temperature signal distortion in high-temperature environments is solved, achieving high-precision temperature detection and safety protection, and supporting the stable cooking function of smart stoves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-06
- Publication Date
- 2026-04-07
AI Technical Summary
Existing stove temperature probes suffer from signal distortion in high-temperature flame and gas heat radiation environments, resulting in low detection accuracy and insufficient safety protection reliability, which affects the stable execution of intelligent cooking programs.
By equipping the temperature probe with a cooling device to create a localized low-temperature working environment, and combining a dual adjustment mechanism of reference and dynamic compensation, interference from flame thermal radiation and probe self-heating effects is eliminated, ensuring the authenticity and stability of temperature detection.
It improves the accuracy of temperature detection and the responsiveness of anti-dry-burning safety protection, supports the stable execution of high-precision intelligent cooking programs, and enhances the safety and intelligence level of the stove.
Smart Images
Figure CN121807066A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of kitchen electrical equipment, in particular to a temperature adjusting method of a temperature probe of a cooktop and the cooktop. BACKGROUND
[0002] With the development of intelligent kitchens, intelligent cooktops have become the core equipment for realizing precise temperature control and safe cooking. They generally monitor the temperature in real time through temperature probes arranged at the bottom of pots to realize dry burning prevention and diversified intelligent cooking programs. In this application background, the detection accuracy of the temperature probe directly determines the safety and reliability of the cooktop and the effect of the intelligent function execution.
[0003] In actual application, the temperature probe will generate self-heating effect when continuously working, and the high-temperature flame generated by the cooktop combustion and the heat radiation environment formed by the high-temperature gas will directly heat the probe body, causing significant distortion of the temperature measurement signal. In order to avoid false alarms, the current scheme is often forced to use a conservative trigger threshold, but this will cause a safety hazard of response delay when real dry burning occurs. At the same time, this precision defect also makes it difficult to stably realize intelligent cooking programs that require precise temperature control, such as low-temperature slow cooking and constant-temperature frying.
[0004] In summary, the temperature detection technology of the existing cooktops is difficult to effectively overcome the interference of environmental heat radiation on the probe, resulting in low temperature detection accuracy and insufficient reliability of safety protection. SUMMARY
[0005] Therefore, the purpose of the present application is to provide a temperature adjusting method of a temperature probe of a cooktop and the cooktop. By creating a low-temperature working environment for the temperature probe arranged at the bottom of the pot and combining a dual regulation mechanism of reference and dynamic compensation to ensure the authenticity and stability of the temperature detection signal, the response accuracy of the dry burning safety protection of the cooktop is improved, and reliable technical support is provided for the stable execution of high-precision intelligent cooking programs.
[0006] In a first aspect, the present application provides a temperature adjusting method of a temperature probe of a cooktop. The cooktop includes a temperature probe and a cooling device. The temperature probe is used to detect the temperature at the bottom of a pot arranged on the cooktop. The cooling device is used to cool the temperature probe. The method includes: Obtaining the current working gear of the cooktop.
[0007] Determining the reference operating parameters of the cooling device according to the current working gear, and controlling the cooling device to operate according to the reference operating parameters.
[0008] Obtaining the real-time detection temperature of the temperature probe, and calculating the temperature deviation value between the real-time detection temperature and the temperature threshold corresponding to the current working gear.
[0009] Determine whether the temperature deviation value meets the preset compensation conditions.
[0010] If the temperature deviation value meets the preset compensation conditions, the reference operating parameters are adjusted according to the temperature deviation value to obtain the target operating parameters, and the cooling device is controlled to operate according to the target operating parameters so that the real-time detected temperature is the effective detection temperature of the stove by adjusting the ambient temperature of the temperature probe.
[0011] This application provides a method for adjusting the temperature of a cooktop temperature probe. By acquiring the current operating setting and setting the baseline cooling parameters, and combining this with real-time temperature difference deviation for dynamic compensation adjustment, the interference and distortion caused by flame heat radiation and probe self-heating effect on the temperature sensing element are eliminated. This ensures that the temperature probe is always in a controlled local low-temperature environment, allowing the collected real-time detection temperature to return to an effective detection temperature that reflects the true state of the cookware. This solves the problems of low temperature measurement accuracy and large data fluctuations in traditional detection methods.
[0012] In an optional implementation, the method further includes: Real-time monitoring of the stove's operating level.
[0013] When the current working level is different from the previous working level, it is determined that the stove has switched levels, and the difference between the current working level and the previous working level is determined.
[0014] The reference operating parameters are adjusted according to the gear difference and preset step parameters to obtain the adjusted reference operating parameters, and the cooling device is controlled to operate according to the adjusted reference operating parameters.
[0015] This possible implementation, by monitoring the real-time operating level and calculating the difference between it and the previous level, can predict the trend of heat load changes before temperature difference feedback adjustment, thereby instantly adjusting the baseline operating parameters. This dynamic following logic shortens the temperature compensation delay during power adjustment and enhances the cooktop's adaptive adjustment capability under complex cooking operations.
[0016] In an optional implementation, the step of adjusting the reference operating parameters according to the gear difference and preset step parameters to obtain the adjusted reference operating parameters includes: The amount of change in operating parameters is determined by combining the gear difference with the preset step parameters.
[0017] Based on the changes in operating parameters, the baseline operating parameters are increased or decreased to obtain the adjusted baseline operating parameters.
[0018] This possible implementation combines the gear difference with preset step parameters, and the determined change in operating parameters can be added to or subtracted from the reference parameters in preset steps, ensuring that the adjustment process of the cooling device has a high degree of linearity and predictability, and avoiding temperature control imbalance caused by sudden changes in firepower.
[0019] In an optional implementation, the step of determining the reference operating parameters of the cooling device based on the current operating gear includes: Obtain the mapping relationship between the pre-set working position and the running parameters.
[0020] The operating parameters corresponding to the current operating level are used as the baseline operating parameters; where the higher the firepower corresponding to the current operating level, the higher the cooling intensity corresponding to the baseline operating parameters.
[0021] This possible implementation, by establishing a mapping relationship between working levels and operating parameters, can match the corresponding level of cooling intensity according to the heat load intensity represented by the level, providing a reasonable initial cooling environment for different cooking scenarios and effectively suppressing the rapid rise in probe temperature under high-heat stir-frying conditions.
[0022] In an optional implementation, if the temperature deviation value meets the preset compensation condition, the step of adjusting the reference operating parameters according to the temperature deviation value to obtain the target operating parameters includes: If the temperature deviation value is greater than the preset temperature deviation threshold, it is determined that the temperature deviation value meets the preset compensation condition.
[0023] Based on the temperature deviation value and the preset compensation coefficient, determine the compensation operation parameters used to compensate for the temperature deviation value.
[0024] Based on the baseline operating parameters, compensation operating parameters are introduced to obtain the target operating parameters.
[0025] This possible implementation method, by introducing a preset compensation coefficient to calculate the compensation operating parameters, can dynamically adjust the fan intensity according to the real-time temperature difference, thereby accurately offsetting the subtle thermal interference caused by complex environmental factors, and ensuring that the temperature probe is always in an ideal working environment.
[0026] In an optional implementation, after determining whether the temperature deviation value meets the preset compensation condition, the method further includes: If the temperature deviation is less than or equal to the preset temperature deviation threshold, it is determined that the temperature deviation does not meet the preset compensation condition, and the cooling device is controlled to maintain the current operating parameters unchanged.
[0027] In an optional implementation, after the step of controlling the cooling device to operate according to the target operating parameters, the method further includes: Keep the cooling device running according to the target operating parameters until the preset delay time is reached.
[0028] During the operation of the cooling device, the real-time detected temperature collected by the temperature probe is used as the effective detection temperature of the stove.
[0029] This possible implementation method ensures that the effective detection temperature identified at this time is real and stable by introducing a preset delay time after adjustment and waiting for the convective heat transfer around the probe to reach a thermal equilibrium state.
[0030] In an optional implementation, the method further includes: Within a preset time before the stove is ignited, the initial temperature of the temperature probe is obtained as an environmental reference benchmark.
[0031] Based on the difference between the environmental reference benchmark and the preset base temperature, the temperature threshold corresponding to the working level is corrected to obtain the corrected temperature threshold.
[0032] This possible implementation method corrects the temperature threshold corresponding to the gear by obtaining an environmental reference benchmark before ignition, which can automatically adapt to different initial cooking environments, thereby eliminating errors caused by environmental background temperature differences such as seasons and regions, and thus improving the detection accuracy for cross-environment use.
[0033] In a second aspect, the present invention provides a cooktop, which includes a controller, a burner, a temperature probe, and a cooling device; the controller is configured to perform a temperature adjustment method for the cooktop temperature probe as described in any of the foregoing embodiments.
[0034] The temperature probe is positioned at the center of the burner head and protrudes from the highest point of the burner head. It is used to detect the temperature of the bottom of the pot located above the burner. The cooling device is set within a preset range of the temperature probe and is used to generate a cooling airflow toward the temperature probe to cool it down.
[0035] This application provides a stove that can directly sense the heat of the pot bottom by placing a temperature probe in the center of the burner and protruding from the highest point. The cooling device generates a cooling airflow toward the probe, which forms an effective thermal barrier between the probe and the external high-temperature flame in physical space, ensuring that the active cooling means can act directly and accurately on the core temperature sensing area.
[0036] In an optional embodiment, the cooling device includes a fan, an air outlet box, and a probe mounting base with an air outlet channel; the temperature probe is fixed on the probe mounting base; the fan outlet is connected to the air outlet inlet of the air outlet box, and the air outlet of the air outlet box is connected to the air inlet of the probe mounting base; the cooling airflow generated by the fan passes through the air outlet channels of the air outlet box and the probe mounting base in sequence, and then blows directly onto the temperature probe through the probe mounting base outlet.
[0037] In this possible implementation, the airflow generated by the fan passes sequentially through the guide of the air outlet box and the air outlet channel of the probe mounting base, and finally blows directly onto the probe through the air outlet of the probe mounting base. This minimizes airflow loss, improves the convective heat transfer efficiency of the airflow, and ensures real-time control of the probe cooling effect.
[0038] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application are realized and obtained through the structures particularly pointed out in the description, claims and drawings.
[0039] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0040] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0041] Figure 1 A flowchart illustrating the temperature adjustment method for a stove temperature probe provided in this application embodiment; Figure 2 A flowchart illustrating a method for adjusting baseline operating parameters during gear shifting, provided in an embodiment of this application. Figure 3 Flowchart of the benchmark operating parameter determination method provided in the embodiments of this application; Figure 4 A flowchart of the target operating parameter determination method provided in the embodiments of this application; Figure 5 This is a schematic diagram of the overall layout of the internal structure of the stove provided in the embodiments of this application; Figure 6 An exploded view of the stove provided in the embodiments of this application; Figure 7A cross-sectional structural diagram of the stove provided in the embodiments of this application; Figure 8 A schematic diagram of a temperature probe assembly provided in an embodiment of this application; Figure 9 This is a schematic diagram of a nozzle holder provided in an embodiment of this application; Figure 10 A schematic diagram of a fan provided in an embodiment of this application; Figure 11 This is a schematic diagram of the air outlet box provided in an embodiment of this application; Figure 12 This is a schematic diagram of the top structure of the burner provided in an embodiment of this application.
[0042] Icons: 1-Controller; 2-Burner; 3-Temperature Probe; 4-Cooling Device; 5-Chassis; 6-Panel; 7-Knob; 8-Valve Body; 21-Boiler Rack; 22-Water Drain Tray; 23-Nozzle Seat; 24-Nozzle; 25-Copper Core; 251-Copper Core Through Hole; 26-Copper Cover; 27-Burnhead; 271-Burnhead Through Hole; 28-Gas Supply Channel; 29-Flame Hole; 231-Nozzle Seat Main Gas Path; 232-Nozzle Seat Secondary Gas Path; 233-Nozzle Seat Screw Hole; 234-Nozzle Seat Through Hole; 235-Nozzle Seat Support Leg; 31-Probe Support Rod; 32-Probe Signal Cable; 41-Fan; 411- Fan bracket; 412-Fan signal cable; 413-Fan mounting hole; 414-Fan air inlet; 415-Fan air outlet; 42-Outlet box; 421-Outlet box screw mounting hole; 422-Outlet box air inlet; 423-Outlet box through hole; 424-Outlet box air outlet; 43-Probe mounting base; 431-Probe mounting base air outlet; 432-Mounting base sealing gasket; 433-Mounting base screw hole; 61-Temperature display assembly; 62-Temperature display screen; 91-Inlet pipe; 92-Inlet pipe bracket; 93-Main branch air pipe; 94-Secondary branch air pipe; 104-Temperature detection assembly. Detailed Implementation
[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0044] To help those skilled in the art better understand this application, a brief introduction to its application scenarios and design concepts is provided.
[0045] While existing smart cooktop temperature control technologies generally utilize bottom-mounted temperature probes for safety and intelligent cooking, these probes are susceptible to interference from their own self-heating and the heat radiation from high-temperature flames and gas, leading to significant distortion in the temperature measurement signal. This precision deficiency forces the system to employ conservative trigger thresholds, posing a safety hazard of response delay when actual dry burning occurs. Furthermore, it hinders the stable implementation of high-precision intelligent cooking programs such as low-temperature slow cooking and constant-temperature frying, becoming a key bottleneck preventing breakthroughs in smart cooktop technology.
[0046] Based on this, this application provides a temperature adjustment method for a stove temperature probe and a stove. By adding a dedicated active cooling gas supply channel to the temperature probe, a localized and controlled low-temperature working environment is created to isolate environmental heat interference. By utilizing a dual adjustment mechanism that combines the initial fan speed setting based on the firepower level with dynamic feedback compensation based on real-time temperature difference, the interference of flame heat radiation on the probe is effectively overcome and the accuracy of temperature detection is ensured. This improves the reliability of the anti-dry-burning function and provides stable data support and technical guarantee for various intelligent cooking modes.
[0047] To facilitate understanding of this embodiment, the embodiments of this application will be described in detail below.
[0048] This application provides a method for adjusting the temperature of a cooktop temperature probe and a cooktop. The cooktop includes a temperature probe and a cooling device. The temperature probe is used to detect the temperature of the bottom of a pot placed on the cooktop, and the cooling device is used to cool the temperature probe. (See reference...) Figure 1 The temperature adjustment method for the stove temperature probe includes: Step S101: Obtain the current working setting of the stove.
[0049] The current operating level can be obtained in several ways, such as by reading the position signal of the knob on the cooktop panel, or by reading digital commands output from the touch control panel, voice control module, or remote communication module.
[0050] The current operating position is usually divided into multiple discrete firepower levels, such as level 1 to level 9, with the higher level corresponding to a larger gas flow and firepower intensity.
[0051] In other implementations, the current working level can also be a continuously adjustable analog quantity, or a preset level that is automatically matched according to the cooking mode (such as deep-frying, stir-frying, or stewing).
[0052] Step S102: Determine the reference operating parameters of the cooling device based on the current operating gear, and control the cooling device to operate according to the reference operating parameters.
[0053] Here, the cooling device includes a fan. The reference operating parameters of the cooling device typically refer to the base speed, drive voltage, or pulse width modulation duty cycle maintained by the fan at the corresponding speed setting. This mapping relationship can be linear, for example, speed 9 corresponds to 7200 rpm, and speed 1 corresponds to 800 rpm. It can also be a non-linear gradient distribution. In the actual assembly structure, the cooling device forms a dedicated air supply channel through the fan, air outlet box, and probe mounting base. External cold air is drawn in from the fan inlet, forced into the air outlet box through the fan outlet, and finally enters the furnace head through-hole through the probe mounting base outlet, directly blowing towards the root and sides of the temperature probe, thereby creating a localized forced convection cooling environment around the probe to isolate the interference of ambient heat radiation.
[0054] Step S103: Obtain the real-time detection temperature of the temperature probe and calculate the temperature deviation between the real-time detection temperature and the temperature threshold corresponding to the current working setting.
[0055] Here, the real-time temperature is obtained directly from the raw data acquired by a temperature probe installed at the center of the burner. This temperature probe can be an NTC thermistor (Negative Temperature Coefficient Thermistor).
[0056] The temperature threshold is a target reference temperature pre-stored in memory, corresponding to each operating level; for example, level 3 corresponds to 160°C. The calculation of the temperature deviation value is not limited to a simple subtraction operation (real-time detected temperature minus the temperature threshold). In more complex implementations, weighted parameters such as the rate of temperature change and historical average temperature can be introduced for correction calculations.
[0057] Step S104: Determine whether the temperature deviation value meets the preset compensation conditions.
[0058] Here, the preset compensation conditions can include the judgment of the absolute value of the temperature deviation value. For example, a temperature deviation threshold is set, and the adjustment is only triggered when the temperature deviation value is greater than the temperature deviation threshold (such as 5°C) to avoid the cooling device from frequently changing its speed due to slight temperature fluctuations.
[0059] The preset compensation conditions can also be judged in conjunction with the time window. For example, the temperature deviation value is required to be in the abnormal range within a preset duration, or the instantaneous state of gear switching is combined to determine whether dynamic compensation needs to be performed.
[0060] Step S105: If the temperature deviation value meets the preset compensation condition, the reference operating parameters are adjusted according to the temperature deviation value to obtain the target operating parameters, and the cooling device is controlled to operate according to the target operating parameters so that the real-time detection temperature is the effective detection temperature of the stove by adjusting the ambient temperature of the temperature probe.
[0061] Here, the adjustment process is achieved by calculating the compensation operating parameters. For example, the temperature deviation value is multiplied by a compensation coefficient to obtain the compensation speed that needs to be increased or decreased. The target operating parameters are the vector synthesis of the reference operating parameters and the compensation operating parameters, and the final fan control parameters are the sum of the current reference parameters and the compensation parameters.
[0062] During control execution, the adjusted output signal drives the fan to change the air volume, so that the convective heat transfer intensity around the probe cancels out the real-time thermal radiation interference.
[0063] After an adjustment is completed, there is usually a short delay period (e.g., 1 second) before the monitoring and optimization process is repeated. This ensures that the real-time temperature collected by the temperature probe can always accurately reflect the true state of the bottom of the cookware, serving as an effective basis for testing the cookware's anti-dry-burn protection or constant-temperature cooking.
[0064] In an optional implementation, refer to Figure 2 The method further includes the following steps S201-S203.
[0065] Step S201: Monitor the real-time operating level of the stove.
[0066] Here, after the stove is ignited, it enters a real-time monitoring state, and performs high-frequency inspections on the firepower level set by the user through knobs, buttons or touch terminals, in order to capture any level adjustment actions that occur during the operation of the stove.
[0067] The real-time operating setting usually reflects the current gas output and heat load intensity of the burner. For example, within the range of 1 to 9, each setting corresponds to a preset firepower level.
[0068] Step S202: When the real-time working level is different from the previous working level, it is determined that the stove has switched levels, and the level difference between the real-time working level and the previous working level is determined.
[0069] Here, the currently monitored real-time operating level is compared with the previous operating level stored in memory. If the two values are not equal, it is determined that the stove has switched levels, and the calculation logic is immediately triggered to determine the magnitude of the level change. The calculation process involves subtracting the original level value from the target level value after the adjustment, resulting in a level difference value representing the direction and magnitude of the change. For example, when the user lowers the level from 5 to 3, the level difference value is -2.
[0070] Step S203: Adjust the reference operating parameters according to the gear difference and preset step parameters to obtain the adjusted reference operating parameters, and control the cooling device to operate according to the adjusted reference operating parameters.
[0071] In an optional implementation, step S203 includes the following steps S301-S302.
[0072] Step S301: Determine the change in operating parameters by combining the gear difference with the preset step parameters.
[0073] Here, the step parameter is a pre-calibrated amount of speed change corresponding to each unit gear, for example, each gear corresponds to 800 rpm. By multiplying the gear difference by this step parameter, the change in operating parameters is calculated. The change in parameters represents the initial correction scale of the airflow required due to changes in firepower.
[0074] Step S302: Based on the change in operating parameters, the baseline operating parameters are increased or decreased to obtain the adjusted baseline operating parameters.
[0075] Here, the original baseline operating parameters are dynamically updated based on the calculated changes in operating parameters.
[0076] Specifically, the new baseline operating parameters are calculated by subtracting the change in operating parameters from the old baseline operating parameters.
[0077] When the power level is lowered and the firepower is reduced, the calculated new baseline operating parameters will increase through this difference calculation, thereby achieving the effect of reducing firepower while increasing airflow. Conversely, when the power level is raised and the firepower is increased, the logic of increasing firepower while decreasing airflow is implemented, thus achieving a preliminary and rapid match between airflow and firepower load.
[0078] After the calculation is completed, the updated drive signal is output, which instructs the fan in the cooling device to immediately switch to the adjusted reference operating parameters.
[0079] Based on this, the embodiments of this application can not only respond to the user's file adjustment needs in real time, but also quickly change the local wind field intensity around the probe.
[0080] In an optional implementation, refer to Figure 3 The step S102, which involves determining the reference operating parameters of the cooling device based on the current operating gear, includes the following steps S401-S402.
[0081] Step S401: Obtain the mapping relationship between the pre-set working position and the running parameters.
[0082] Here, a mapping relationship between operating levels and operating parameters is established in advance. This mapping relationship defines the basic operating states that the cooling device should have under different fire loads.
[0083] Typically, cooktops have multiple discrete heat levels, ranging from level 1 (representing minimum heat) to level 9 (representing maximum heat). Each level is associated with a specific baseline operating parameter. These parameters can be stored using lookup tables or calculated in real-time using preset function formulas. This mapping data is based on extensive experimental testing and aims to configure the most suitable basic cooling environment for each heat level.
[0084] Step S402: The operating parameters corresponding to the current working level are used as the reference operating parameters; wherein, the greater the firepower corresponding to the current working level, the higher the cooling intensity corresponding to the reference operating parameters.
[0085] Here, based on the real-time acquired signal of the current operating level, the matching baseline operating parameters are retrieved or calculated from the pre-stored correspondence. In this process, the principle of simultaneously increasing the firepower and cooling intensity is followed; that is, the higher the currently used level number, the greater the heat load generated by the flame, and the higher the allocated cooling air volume baseline.
[0086] Taking the highest setting (level 9) as an example, the corresponding baseline operating parameters can be set to 7200 revolutions per minute (rpm). The lowest setting (level 1) is set to 800 rpm to ensure basic cooling performance at low power levels. The baseline operating parameters for the other intermediate settings are linearly distributed between 800 and 7200 rpm, according to the step changes of the setting. After determining the specific values, a corresponding drive pulse signal is generated to command the fan in the cooling system to operate at that speed.
[0087] Specifically, after the fan starts, external cold air is drawn in through the air inlet at the bottom of the fan, and then forced into the air outlet box through the fan outlet and the air outlet box inlet. The airflow is buffered and guided by the air outlet box, and enters the burner head throughlet through the probe mounting outlet, directly blowing towards the base and sides of the temperature probe, forming localized forced convection heat dissipation. This creates a localized and controllable working environment for the temperature probe, and through active heat dissipation, it initially isolates or reduces the heat radiation from the flame and the thermal interference caused by the high-temperature gas baking, ensuring that the fan airflow can immediately correspond to the fire level.
[0088] In an optional implementation, refer to Figure 4 Step S105 includes the following steps S501-S503.
[0089] Step S501: If the temperature deviation value is greater than the preset temperature deviation threshold, determine that the temperature deviation value meets the preset compensation condition.
[0090] Here, the real-time temperature detected by the temperature probe is continuously monitored and compared with the target threshold temperature set at the current setting.
[0091] The temperature deviation is calculated by subtracting the target threshold temperature from the real-time detected temperature. To ensure system stability and effectively prevent frequent start-stops or speed oscillations in the fan due to minor temperature fluctuations, a compensation dead zone is preset as a pre-defined compensation condition, such as setting the preset temperature deviation threshold to 5°C. If the calculated temperature deviation is greater than the preset temperature deviation threshold, it is determined that the current temperature deviation has significantly exceeded the allowable range, confirming that the temperature deviation meets the preset compensation condition, and subsequently triggering the wind speed compensation execution procedure.
[0092] Step S502: Determine the compensation operating parameters used to compensate for the temperature deviation value based on the temperature deviation value and the preset compensation coefficient.
[0093] Here, after confirming the entry into the compensation logic, the compensation operating parameters used to compensate for the temperature deviation are determined based on the specific magnitude of the temperature deviation and in conjunction with the preset compensation coefficient. The preset compensation coefficient is a pre-calibrated adjustment gain factor.
[0094] Specifically, the preset compensation coefficient can be set to 40. By multiplying the current temperature deviation value by the preset compensation coefficient, the additional compensation speed value required from the fan is calculated.
[0095] Step S503: Based on the baseline operating parameters, compensated operating parameters are introduced to obtain the target operating parameters.
[0096] Here, the baseline operating parameters corresponding to the current moment are combined with the calculated compensation operating parameters to calculate the final target operating parameters.
[0097] Specifically, the current baseline operating parameters and the compensation operating parameters are summed to obtain the final value, which is then used as the target speed command for driving the cooling device.
[0098] Based on this, the residual temperature difference caused by flame radiation can be accurately eliminated, and the probe temperature can be stabilized near the target threshold by forced local convection heat dissipation. After adjusting the airflow according to the target operating parameters, the system will enter a short monitoring cycle (e.g., a 1-second delay), and then acquire temperature deviation information again and perform temperature detection cyclically, thereby achieving continuous and dynamic closed-loop optimization of the temperature detection environment and ensuring that the acquired effective detection temperature can truly reflect the state of the cookware.
[0099] In an optional implementation, after step S104, the method further includes: If the temperature deviation is less than or equal to the preset temperature deviation threshold, it is determined that the temperature deviation does not meet the preset compensation condition, and the cooling device is controlled to maintain the current operating parameters unchanged.
[0100] Here, if the calculated temperature deviation is less than or equal to the preset temperature deviation threshold, for example, if the deviation is within 5°C, then the current temperature fluctuation is determined to be within the normal range or a minor disturbance, and the temperature deviation does not meet the preset compensation conditions. In this case, the controller will issue a command requiring the cooling device to continue operating at its current parameters without adjusting its speed. This avoids the fan in the cooling device frequently changing its speed or repeatedly starting and stopping due to minor temperature fluctuations, thereby reducing hardware wear, lowering noise, and significantly improving the overall stability of the cooktop.
[0101] In an optional implementation, after step S102, where the cooling device is controlled to operate according to the target operating parameters, the method further includes: Keep the cooling device running according to the target operating parameters until the preset delay time is reached.
[0102] Here, after executing one wind speed compensation output, the next parameter calculation is not performed immediately. To ensure that the temperature field has sufficient time to stabilize after airflow adjustment, the cooling device continues to operate stably according to the target operating parameters until the preset delay time is reached. The preset delay time can be set to a short period, such as 1 second, according to actual thermal response requirements. After the preset delay period, it automatically returns to the initial gear selection and temperature monitoring stage, re-acquires real-time operating status and feedback data, and then initiates a new round of dynamic optimization control.
[0103] This delay and cycling mechanism ensures that the temperature probe's environment remains in an ideal state, guaranteeing consistent and accurate temperature monitoring.
[0104] During the operation of the cooling device, the real-time detected temperature collected by the temperature probe is used as the effective detection temperature of the stove.
[0105] In one embodiment, the effective detected temperature is directly used in the cooktop's anti-dry-burn protection logic. During cooking, the effective detected temperature, after active cooling intervention, is acquired in real time. This effective detected temperature accurately reflects the thermal state of the cooktop's bottom, eliminating signal distortion caused by flame heat radiation and probe self-heating effects. When the effective detected temperature reaches a preset safety threshold, the cooktop is determined to be in a dangerous dry-burn state, triggering a safety protection mechanism that includes, but is not limited to, issuing a buzzer alarm to alert the user, automatically shutting off the gas supply, or reducing the heat level. Because the effective detected temperature has extremely high accuracy, a more sensitive and non-conservative trigger threshold can be used, fundamentally solving the problem of delayed response or false alarms in the anti-dry-burn function caused by temperature measurement errors in traditional technologies, thus ensuring the safety of the cooking process.
[0106] In another embodiment, effective temperature detection provides reliable data support for intelligent cooking programs requiring precise temperature control. When executing advanced cooking modes such as sous-vide or constant-temperature frying, the effective temperature detection serves as feedback for closed-loop control, adjusting the burner's heat output in real time. For example, in constant-temperature frying mode, the effective temperature detection monitors oil temperature changes, automatically reducing heat when the temperature approaches the set target value to ensure the oil temperature remains constant within the ideal range, preventing burning or poor cooking results due to temperature measurement deviations. This high-precision temperature control capability enables the cooktop to stably implement various temperature-sensitive automated cooking functions, enhancing the user's cooking experience.
[0107] In another embodiment, by analyzing the change curve of the effective detection temperature and its matching relationship with the current operating level, it is possible to accurately distinguish between normal intense cooking conditions and actual dry-burning risks. For example, during high-temperature operations such as stir-frying, although the ambient heat load is extremely high, the effective detection temperature obtained through the airflow regulation mechanism can eliminate external heat interference and accurately identify that this is a normal high-temperature cooking condition rather than a dry-burning state, thus avoiding false interception caused by environmental interference. This intelligent recognition mechanism ensures that the cooktop, while guaranteeing safety, does not unnecessarily restrict the user's normal cooking behavior.
[0108] In an optional implementation, the method further includes the following steps S601-S602.
[0109] Step S601: Within a preset time before the stove is ignited, the initial temperature of the temperature probe is obtained as an environmental reference benchmark.
[0110] Here, an environmental monitoring program is triggered within a preset time before the stove ignition begins. The initial temperature is obtained by reading the signal from a temperature probe installed in the burner's through-hole, which is used to sense the temperature of the bottom of the cookware. The value obtained at this time reflects the original ambient temperature before the stove flame generates thermal radiation interference and the probe's self-heating effect; this value is defined as the environmental reference baseline.
[0111] Step S602: Based on the difference between the environmental reference benchmark and the preset base temperature, the temperature threshold corresponding to the working level is corrected to obtain the corrected temperature threshold.
[0112] Here, the obtained environmental reference temperature is compared with the preset base temperature. The preset base temperature is generally the standard room temperature used when the product was calibrated at the factory. By calculating the difference between the environmental reference temperature and the preset base temperature, the impact of the current actual environment on the basic bias of temperature measurement accuracy can be quantified. Based on this difference, dynamic corrections are performed on the temperature thresholds corresponding to each operating level.
[0113] In the initial mapping relationship, levels 1 to 9 correspond to different firepower intensities and initial fan speeds. For example, level 9 corresponds to 7200 rpm, level 1 corresponds to 800 rpm, and each level is set with a corresponding target reference value, such as level 3 corresponding to a temperature threshold of 160℃.
[0114] By introducing a difference for correction, a corrected temperature threshold will be output, thereby offsetting the initial temperature difference interference caused by different climates, seasons or regions.
[0115] The correction mechanism provided in this application ensures that environmental background noise can be eliminated when calculating the deviation between the real-time detected temperature and the temperature threshold. This allows the cooling intensity generated by the fan, air outlet box, and probe mounting in the cooling device to more accurately offset the interference caused by flame heat radiation. This adaptive calibration process improves the response accuracy of the anti-dry-burn function in extreme environments and lays a solid data foundation for the stable implementation of high-precision intelligent cooking programs such as low-temperature slow cooking and constant-temperature frying.
[0116] Based on the above embodiments, this application provides a stove, referring to... Figure 5 The stove provided in this application includes: a controller 1, a burner 2, a temperature probe 3, and a cooling device 4; the controller 1 is configured to perform the temperature adjustment method of the stove temperature probe as described in any of the foregoing embodiments.
[0117] Here, controller 1 is configured to execute the temperature adjustment method of the stove's temperature probe. During stove operation, controller 1 acquires the current operating level of the stove and determines the reference operating parameters of the cooling device 4. Controller 1 acquires the real-time detected temperature through temperature probe 3 and calculates the temperature deviation between the real-time detected temperature and the temperature threshold corresponding to the current operating level. If the temperature deviation meets the preset compensation conditions, controller 1 adjusts the reference operating parameters according to the temperature deviation to obtain the target operating parameters and drives the cooling device 4 to operate, so that the real-time detected temperature collected by temperature probe 3 is used as the effective detected temperature of the stove, thereby eliminating flame heat radiation interference and ensuring the accuracy of temperature detection.
[0118] Temperature probe 3 is located at the center of the burner head of burner 2 and protrudes from the highest point of the burner head. It is used to detect the temperature of the bottom of the pot located above burner 2. Cooling device 4 is located within a preset range of temperature probe 3 and is used to generate cooling airflow toward temperature probe 3 to cool it down.
[0119] In an optional embodiment, the cooling device 4 includes a fan 41, an air outlet box 42, and a probe mounting base 43 with an air outlet channel; the temperature probe 3 is fixed on the probe mounting base 43; the fan outlet 415 of the fan 41 is connected to the air outlet inlet 422 of the air outlet box 42, and the air outlet 424 of the air outlet box is connected to the air inlet of the probe mounting base 43; the cooling airflow generated by the fan 41 passes through the air outlet channels of the air outlet box 42 and the probe mounting base 43 in sequence, and then blows directly onto the temperature probe 3 through the probe mounting base outlet 431 of the probe mounting base 43.
[0120] Reference Figure 5 The diagram showcases the overall layout of the stove's internal structure. The chassis 5 serves as the base for the entire installation. A temperature probe 3 is positioned at the center of the burner 2 to detect the temperature of the bottom of the pot positioned above the burner 2. A cooling device 4 is located within a preset range of the temperature probe 3, generating a cooling airflow towards it for cooling. Inside the chassis 5 is a controller 1 and multiple signal lines connected to it. The controller 1 is electrically connected to components such as the knob 7, valve body 8, and temperature probe 3 via these signal lines. The burner 2 is located above the chassis 5, and the fan 41 is fixed inside the chassis 5 by a fan bracket 411. The chassis 5 also contains an air inlet pipe 91, a main branch gas pipe 93, and a secondary branch gas pipe 94 for gas supply. The air inlet pipe 91 is fixed by an air inlet pipe bracket 92. The knob 7 is located at the front of the stove and is used to adjust the heat level. The valve body 8 is connected to the knob 7 and is used to adjust the gas flow. The fan 41 is electrically connected to the controller 1 via a fan signal line 412.
[0121] Reference Figure 6 The explosion structure of the stove is shown. A panel 6 covers the base 5, and a temperature display component 61 and a temperature display screen 62 for numerical display are embedded in the panel 6. A pot rack 21 is mounted above the panel 6 to support the pot, and a drip tray 22 is located around the burner 2. Inside the base 5, a temperature detection component 104 is configured to work with a temperature probe 3. A nozzle holder 23 is installed inside the base 5 to fix the nozzle and connect the main branch gas pipe 93 and the auxiliary branch gas pipe 94. The airflow generated by the fan 41 is guided to the center of the burner 2 through the air outlet box 42.
[0122] Reference Figure 7The cross-sectional structure of the stove is shown. Temperature probe 3 is located at the center of burner 2 and is used to detect the temperature of the bottom of the pot positioned above burner 2. Temperature probe 3 passes through copper core through-hole 251 on copper core 25 and burner head through-hole 271 on burner head 27. Burner 2 also includes a copper cover 26 covering the top. The airflow path of cooling device 4 is as follows: air is drawn in through fan inlet 414, enters air box inlet 422 through fan outlet 415, is then guided through air box 42 to air box outlet 424, and finally blows directly onto temperature probe 3 through probe mounting outlet 431 on probe mounting base 43. Probe signal line 32 is led out from the bottom of the probe, passes through chassis 5, and reaches controller 1.
[0123] Reference Figure 8 The diagram illustrates the structure of the temperature probe assembly. The temperature probe 3 is mounted at the top of the probe support rod 31, which passes through the center of the probe mounting base 43. The probe mounting base 43 has an air outlet 431 around the probe support rod 31 to ensure uniform cooling airflow to the probe base. The bottom of the probe mounting base 43 is sealed by a mounting base gasket 432 and secured using mounting base screw holes 433. The probe signal cable 32 extends from the bottom.
[0124] Reference Figure 9 The structure of the nozzle holder 23 is shown. The nozzle holder 23 has a main air passage 231 and a secondary air passage 232. Multiple nozzles 24 are mounted on the nozzle holder 23. A nozzle holder through hole 234 is located at the center of the nozzle holder 23 to accommodate the probe mounting base 43, which is supported within the chassis 5 by nozzle holder feet 235. The nozzle holder 23 also has nozzle holder screw holes 233 for overall fixation.
[0125] Reference Figure 10 The image shows a fan 41. The fan 41 has a mounting hole 413 on its housing. The central area is the fan inlet 414, and the side-extending part is the fan outlet 415. A fan signal line 412 is used to connect to the controller 1 to transmit control commands.
[0126] Reference Figure 11 The air outlet box 42 is shown. The air outlet box 42 has a long and narrow air guiding structure, with an air outlet box inlet 422 at one end and an air outlet box outlet 424 at the top of the other end. An air outlet box through hole 423 is provided in the middle of the box to avoid obstructing other components inside the stove. The air outlet box 42 is fixed to the chassis 5 via air outlet box screw fixing holes 421.
[0127] Reference Figure 12The top structure of burner 2 is shown. Burner 2 has multiple flame holes 29 distributed around its circumference, and an air supply channel 28 is provided near the center. This structure allows the air supplied by the cooling device 4 to smoothly form a circulating cooling field around the temperature probe 3, ensuring the reliability of effective temperature detection.
[0128] The computer program product provided in this application includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods described in the preceding method embodiments. For specific implementation details, please refer to the method embodiments, which will not be repeated here.
[0129] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and apparatus described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.
[0130] Furthermore, in the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0131] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0132] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.
Claims
1. A method for adjusting the temperature of a stove temperature probe, characterized in that, The cooktop includes a temperature probe and a cooling device. The temperature probe is used to detect the temperature of the bottom of a pot mounted on the cooktop, and the cooling device is used to cool the temperature probe. The method includes: Obtain the current operating setting of the stove; The reference operating parameters of the cooling device are determined based on the current operating level, and the cooling device is controlled to operate according to the reference operating parameters. The real-time detection temperature of the temperature probe is obtained, and the temperature deviation between the real-time detection temperature and the temperature threshold corresponding to the current working level is calculated. Determine whether the temperature deviation value meets the preset compensation conditions; If the temperature deviation value meets the preset compensation condition, the reference operating parameters are adjusted according to the temperature deviation value to obtain the target operating parameters, and the cooling device is controlled to operate according to the target operating parameters so that the real-time detected temperature is the effective detected temperature of the stove by adjusting the ambient temperature of the temperature probe.
2. The method according to claim 1, characterized in that, The method further includes: Real-time monitoring of the stove's operating level; When the real-time working level is different from the previous working level, it is determined that the stove has switched levels, and the level difference between the real-time working level and the previous working level is determined. The reference operating parameters are adjusted according to the gear difference and the preset step parameters to obtain the adjusted reference operating parameters, and the cooling device is controlled to operate according to the adjusted reference operating parameters.
3. The method according to claim 2, characterized in that, The step of adjusting the reference operating parameters according to the gear difference and the preset step parameters to obtain the adjusted reference operating parameters includes: The change in operating parameters is determined by combining the gear difference with the preset step parameters; Based on the change in the operating parameters, the baseline operating parameters are increased or decreased to obtain the adjusted baseline operating parameters.
4. The method according to claim 1, characterized in that, The step of determining the reference operating parameters of the cooling device based on the current operating level includes: Obtain the mapping relationship between the pre-set working level and the running parameters; The operating parameters corresponding to the current operating level are used as the reference operating parameters; wherein, the greater the firepower corresponding to the current operating level, the higher the cooling intensity corresponding to the reference operating parameters.
5. The method according to claim 1, characterized in that, The step of adjusting the reference operating parameters according to the temperature deviation value to obtain the target operating parameters if the temperature deviation value meets the preset compensation condition includes: If the temperature deviation value is greater than the preset temperature deviation threshold, it is determined that the temperature deviation value meets the preset compensation condition. Based on the temperature deviation value and the preset compensation coefficient, determine the compensation operation parameters used to compensate for the temperature deviation value; Based on the baseline operating parameters, the compensation operating parameters are introduced to obtain the target operating parameters.
6. The method according to claim 1, characterized in that, After the step of determining whether the temperature deviation value meets the preset compensation condition, the method further includes: If the temperature deviation value is less than or equal to the preset temperature deviation threshold, it is determined that the temperature deviation value does not meet the preset compensation condition, and the cooling device is controlled to maintain the current operating parameters unchanged.
7. The method according to claim 1, characterized in that, After the step of controlling the cooling device to operate according to the target operating parameters, the method further includes: The cooling device is kept running according to the target operating parameters until the preset delay time is reached; During the operation of the cooling device, the real-time detected temperature collected by the temperature probe is used as the effective detected temperature of the stove.
8. The method according to claim 1, characterized in that, The method further includes: Within a preset time before the stove is ignited, the initial temperature of the temperature probe is obtained as an environmental reference benchmark. Based on the difference between the environmental reference benchmark and the preset base temperature, the temperature threshold corresponding to the working level is corrected to obtain the corrected temperature threshold.
9. A stove, characterized in that, The cooktop includes a controller, a burner, a temperature probe, and a cooling device; the controller is configured to perform the temperature adjustment method for the cooktop temperature probe as described in any one of claims 1-8; The temperature probe is located at the center of the burner head and protrudes from the highest point of the burner head, and is used to detect the temperature of the bottom of the pot located above the burner; the cooling device is located within a preset range of the temperature probe and is used to generate a cooling airflow toward the temperature probe to cool it down.
10. The stove according to claim 9, characterized in that, The cooling device includes a fan, an air outlet box, and a probe mounting base with an air outlet channel; the temperature probe is fixed on the probe mounting base; the fan outlet is connected to the air outlet inlet of the air outlet box, and the air outlet of the air outlet box is connected to the air inlet of the probe mounting base; the cooling airflow generated by the fan passes through the air outlet channels of the air outlet box and the probe mounting base in sequence, and then blows directly onto the temperature probe through the probe mounting base outlet.