Dual Power Switching for Heating Appliances With Overheat Control
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Solution Overview
Problem
Existing kitchen appliances that utilize both wired and wireless power sources face challenges in managing power control and safety features, particularly when switching between power sources, leading to potential overheating and electrical hazards.
Innovation Solution
An apparatus with a power source switch that selectively couples a load to either a wired or wireless power circuit, controlled by a controller that determines power source availability and temperature switch status, ensuring safe and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an apparatus includes both wired and wireless power circuits with automatic switching capability, then power source versatility and operational reliability are improved, but device complexity increases
Solution Approach 1:
The apparatus is designed with dual power circuit capability, allowing it to function with both wired and wireless power sources. The power source switch enables the single apparatus to adapt to different power input methods, making it universally compatible with multiple power delivery systems without requiring separate devices for each power type.
Solution Approach 2:
The controller automatically detects the availability of wired power and autonomously controls the power source switch to select between wired and wireless power circuits. This self-service mechanism eliminates the need for manual intervention or complex user configuration, allowing the system to automatically adapt to available power sources while managing the complexity internally.
2Reliability
If wired power is used to power the heating element, then power delivery reliability is improved, but portability and interoperability are reduced
Solution Approach 1:
The power source switch enables dynamic reconfiguration of the power delivery path, allowing the apparatus to transition between wired and wireless power modes based on operational context. This dynamic capability ensures that the system can maintain reliable power delivery when wired power is available while also enabling portable operation when wireless power is used, thus resolving the contradiction between reliability and portability.
3Ease of operation
If wireless power is used to enable portability, then ease of operation is improved, but power transfer control and reliability are reduced
Solution Approach 1:
The controller continuously monitors the availability of wired power and the status of the wireless power transmitter, using this feedback information to make intelligent decisions about power source selection. This feedback mechanism ensures that wireless power operation is carefully managed and controlled, maintaining reliability while preserving the portability and ease of operation that wireless power provides.
4Duration of action of stationary object
If automatic power source switching is implemented, then operational continuity is improved, but control system complexity increases
Solution Approach 1:
The controller performs automatic detection of power source availability and autonomously controls the power source switch without requiring external intervention or complex user programming. This self-service approach ensures continuous operation by seamlessly transitioning between power sources while keeping the control system manageable through automated decision-making logic rather than complex manual control mechanisms.
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 safe and efficient switching between wired and wireless power sources, preventing overheating and electrical hazards while maintaining control over heating elements, thus enhancing appliance safety and versatility.
Implementation Method 1
The wireless power may be transferred using inductive coupling or resonant coupling between a primary coil of a wireless power transmitter and a secondary coil of a wireless power receiver. For example, the primary coil of the wireless power transmitter may produce an electromagnetic field that induces an electromotive force in the secondary coil of the wireless power receiver when the secondary coil is placed in proximity to the primary coil.
Implementation Method 2
The heating element may include a resistance component contained within the appliance. When electricity is applied to the resistance component, the heating element may generate heat.
Implementation Method 3
The energy harvester may be configured to harvest a bias power from communication signals received by a communication coil of the wireless communication interface.
Data Source
AI summary
This disclosure provides systems, methods and apparatuses for selectively utilizing wired power or wireless power in an apparatus. The apparatus may include a wired power circuit associated with the wired power and a wireless power circuit configured to receive wireless power from a wireless power transmitter. The apparatus may include a power source switch configured to selectively couple a load to the wired power circuit or the wireless power circuit. A controller may control the power source switch based on availability of the wired power or the wireless power. In some implementations, the load includes a heating element and a temperature switch. The controller also may control a wireless power transfer state of the wireless power transmitter based on a status of the temperature switch.