Kitchen Appliance Lid Locking Detection Using Magnetic Field Sensors
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Solution Overview
Problem
Existing detection mechanisms for the locking state of lids in kitchen appliances are complex, prone to contamination, require significant installation space, and are not robust, especially when multiple lids and varying pot diameters are involved.
Innovation Solution
A vessel arrangement for a kitchen appliance that uses magnetic field-based sensors and counter-elements in the lid and food receiving element to detect the locking state, reducing complexity and requiring less installation space, while being more robust and reliable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical detection mechanisms (microswitches, plungers, levers) are used to detect lid locking state, then the locking position can be detected, but the device complexity increases and the risk of contamination and jamming increases
Solution Approach 1:
The patent replaces mechanical detection mechanisms (microswitches, plungers, levers) with a magnetic field-based detection system. A magnetic sensor in the base detects the position of a magnetic element in the lid through non-contact sensing, eliminating mechanical transmission elements that are prone to contamination and jamming while reducing device complexity
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the lid and base for information transmission. The magnetic element in the lid and magnetic sensor in the base communicate the locking state through magnetic field interaction without direct mechanical contact, preventing contamination and simplifying the detection mechanism
2Reliability
If mechanical transmission elements are used to transmit locking information, then the locking state can be detected, but the risk of contamination leads to jamming and blockage
Solution Approach 1:
The patent replaces mechanical transmission elements with a magnetic field-based detection system. The magnetic sensor detects the position of the magnetic element through non-contact sensing, eliminating mechanical parts that are susceptible to contamination, jamming, and blockage while maintaining reliable locking state detection
Solution Approach 2:
The patent uses a magnetic field as an intermediary to transmit locking information between the lid and base without mechanical contact. This eliminates the harmful effects of contamination on mechanical transmission elements while ensuring reliable detection of the locking state
3Adaptability or versatility
If multiple electrical signals are used to encode lid type information, then lid identification is possible, but the device complexity and installation space increase
Solution Approach 1:
The patent encodes lid type information by changing the position parameters of magnetic elements within a single magnetic field interaction system. Different lid types are identified by detecting the specific positions of magnetic elements during lid closure, allowing multiple lid type identification with minimal detection mechanism complexity and installation space
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
The magnetic field-based detection system provides a reliable and simple method to determine the locking state of lids, minimizing contamination and mechanical wear, and enhances safety by ensuring proper operation.
Implementation Method 1
at least one magnetic field sensor (112, 212) arranged in it, which has a detection range for detecting a magnetic field
Data Source
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Figure 2b
AI summary
The application relates to a vessel arrangement (100, 200, 300, 500, 700, 800, 900, 1100) for a kitchen appliance (230, 530, 730, 830, 930, 1130), comprising a food receiving element (102, 202, 302, 502, 602, 702, 802, 902, 1002, 1102) and at least one lid (104, 204, 304, 504, 704, 804, 904, 1104), designed to close an opening of the food receiving element (102, 202, 302, 502, 602, 702, 802, 902, 1002). 1102), wherein the cover (104, 204, 304, 504, 704, 804, 904, 1104) is movable relative to the feed receiving element (102, 202, 302, 502, 602, 702, 802, 902, 1002, 1102) between a first operating position and a second operating position different from the first operating position, wherein the cover (104, 204, 304, 504, 704, 804, 904, 1104) engages at least one first magnetic field-based counter element (108, 208, 210, 308, 508, 510, 608, 610, 708, 710, 808, 810, 908, 910, 1008, 1010, 1108) and the food intake element (102, 202, 302, 502, 602, 702, 802, 902, 1002,1102) at least one magnetic field-based sensor element (112, 212, 214, 312, 512, 514, 612, 614, 712, 714, 812, 814, 912, 914, 1012, 1014, 1112) connectable to a detection device (126, 226, 526, 726, 826, 926, 1126), wherein the detection device (126, 226, 526, 726, 826, 926, 1126) is configured to detect a second operating state of the cover (104, 204, 304, 504, 704, 804, 904, 1104), wherein the magnetic field-based sensor element (112, 212, 214, 312, 512, 514, 612, 614, 712, 714, 812, 814, 912, 914, 1012, 1014, 1112) is configured to output the first sensor data only upon detection of the first magnetic field-based counter element (108, 208, 210, 308, 508, 510, 608, 610, 708, 710, 808, 810, 908, 910, 1008, 1010, 1108) within the detection range of the magnetic field-based sensor element (112, 212, 214, 312, 512, 514, 612, 614, 712, 714, 812, 814, 912, 914, 1012, 1014, 1112), wherein the first magnetic field-based counter element (108, 208, 210, 308, 508, 510,608, 610, 708, 710, 808, 810, 908, 910, 1008, 1010, 1108) in the cover (104, 204, 304, 504, 704, 804, 904, 1104) is arranged such that the magnetic field-based counter element (108, 208, 210, 308, 508, 510, 608, 610, 708, 710, 808, 810, 908, 910, 1008, 1010, 1108) is only in the detection range of the magnetic field-based sensor element (112, 212, 214, 312, 512, 514, 612, 614, 712, 714, 812, 814, 912, 914, 1012, 1014, 1112) is when the cover (104, 204, 304, 504, 704, 804, 904, 1104) is in the second operating position.