Hybrid Cooktop Heating Control for Fast Infrared-to-Induction Switching
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Solution Overview
Problem
Existing electromagnetic stoves with hybrid infrared and electromagnetic heating capabilities face issues where the electromagnetic heating mode is restricted due to high temperatures from the infrared heating, leading to prolonged waiting times and poor practicality when switching modes.
Innovation Solution
A method for controlling a cooking appliance that adjusts the temperature control parameters of the electromagnetic heating mode based on operating parameters of the infrared heating mode, such as temperature values and time durations, to ensure proper operation and reduce waiting times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the temperature sensor detects high temperature after infrared heating, then the electromagnetic heating mode is restricted to prevent overheating, but the user experience deteriorates due to prolonged waiting time and inability to continue cooking
Solution Approach 1:
The patent applies parameter changes by adjusting the temperature threshold parameter specifically for electromagnetic heating mode following infrared heating. When the control system detects that infrared heating has just ended, it temporarily raises the temperature threshold from the standard value to a higher value (e.g., 600°C), allowing the electromagnetic heating mode to activate even when the sensor reads high temperatures. This dynamic parameter adjustment resolves the contradiction by maintaining safety while eliminating the unnecessary waiting period that would otherwise prevent users from continuing to cook.
2Reliability
If the system waits for natural cooling of the infrared stove pan and stove panel, then the temperature sensor reading returns to normal range, but the time consumption increases significantly
Solution Approach 1:
The patent implements preliminary action by having the control system detect and record the end time of infrared heating mode in advance. Based on this timing information, the system proactively adjusts the temperature threshold parameter before the user attempts to switch to electromagnetic heating mode. This anticipatory adjustment eliminates the need for users to wait for natural cooling, as the system has already prepared the appropriate parameters for seamless mode transition.
3Reliability
If the electromagnetic heating assembly operates with standard temperature control parameters after infrared heating, then the cooking safety is maintained, but the heating efficiency and responsiveness are reduced
Solution Approach 1:
The patent applies dynamics by making the temperature control parameters adaptive and time-dependent rather than static. The control system dynamically adjusts the temperature threshold based on the operational history, specifically detecting whether infrared heating has recently ended. When infrared heating has just concluded, the system activates a temporary high threshold state that enables rapid electromagnetic heating response. This dynamic parameter adjustment maintains cooking safety through continuous monitoring while dramatically improving heating responsiveness and efficiency during mode transitions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables seamless switching between heating modes by adapting the electromagnetic heating parameters, ensuring efficient and timely operation without user inconvenience.
Implementation Method 1
an infrared heating assembly and an electromagnetic heating assembly corresponding to a same heating area
Implementation Method 2
an infrared heating assembly and an electromagnetic heating assembly corresponding to a same heating area
Data Source
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AI summary
Disclosed are a method for controlling a cooking appliance and a cooking appliance (100). The cooking appliance (100) includes an infrared heating assembly (31) and an electromagnetic heating assembly (32) corresponding to a same heating area. The method for controlling the cooking appliance includes: (S100), obtaining an operating parameter of the infrared heating assembly after an infrared heating mode ends and an electromagnetic heating mode is entered; (S200), obtaining a temperature control parameter corresponding to the electromagnetic heating mode according to the operating parameter; and (S300), controlling the electromagnetic heating assembly to operate according to the temperature control parameter. The present application aims to provide a hybrid heating cooking appliance (100) and a method for controlling the hybrid heating cooking appliance (100) to solve the problem that the electromagnetic heating mode of the existing electromagnetic stove cannot operate as required after infrared heating.