Flexible Heater Voltage Adaptation via Switch Circuit
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Solution Overview
Problem
Flexible heaters face challenges in maintaining consistent power dissipation across different input supply voltages, leading to varying heat emission levels when operating at 110V AC versus 220V AC.
Innovation Solution
A switch circuit automatically configures the coupling of resistive elements on the flexible heater, either in series or parallel, based on the input supply voltage, to maintain approximately the same power dissipation whether the voltage is 110V AC or 220V AC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the flexible heater is designed to operate at a specific voltage level, then it achieves optimal power dissipation at that voltage, but it cannot maintain consistent power dissipation when operated at different voltage levels
Solution Approach 1:
The patent applies the dynamics principle by making the heater circuit configuration changeable based on operating conditions. The switch circuit automatically reconfigures the resistive elements between series and parallel connections depending on the detected voltage level, transforming a static circuit into a dynamic one that adapts to different voltage inputs (110V or 220V) while maintaining consistent power dissipation.
Solution Approach 2:
The patent implements parameter changes by altering the electrical resistance of the heater circuit based on the input voltage level. When voltage changes from 110V to 220V, the switch circuit changes the total resistance by reconfiguring the resistive elements from parallel to series connection, thereby compensating for the voltage change and maintaining stable power dissipation.
2Device complexity
If the flexible heater uses fixed resistive element configuration, then the circuit design is simple, but the heat emission varies significantly with different input voltages
Solution Approach 1:
The patent applies feedback by using the switch circuit to detect the input voltage level and automatically adjust the heater configuration in response. The voltage level detection triggers the appropriate switch state, which reconfigures the resistive elements to compensate for voltage variations, ensuring consistent heat emission regardless of whether the input is 110V or 220V.
Solution Approach 2:
The heater system performs self-service by automatically detecting the input voltage level and reconfiguring its own circuit without external intervention. The switch circuit autonomously determines the appropriate configuration (series or parallel) based on the detected voltage, allowing the heater to adapt itself to different operating conditions.
3Power
If multiple heater elements are connected in parallel to maximize power output, then the heater delivers high power at high voltage, but it dissipates excessive power when connected to low voltage supplies
Solution Approach 1:
The patent uses dynamics by making the connection topology of the heater elements changeable. The switch circuit dynamically reconfigures the resistive elements between parallel and series connections based on the detected voltage level, allowing the heater to deliver high power at 220V (parallel configuration) while limiting power output at 110V (series configuration) to prevent excessive power dissipation.
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
This configuration ensures that the flexible heater dissipates substantially similar amounts of power and emits consistent heat regardless of the input supply voltage, enhancing operational reliability and flexibility.
Implementation Method 1
When a voltage is applied to the heater elements, current flows through the heater elements. The current flowing through the heater elements causes the heater elements to dissipate power, which in turn causes the flexible heater to emanate heat.
Data Source
AI summary
In general, this disclosure describes example techniques for a flexible heater system to automatically configure itself to operate over different input supply voltages. The flexible heater system may include a flexible heater that includes a first heater element and a second heater element. The flexible heater system may also include a switch circuit that may automatically couple the first heater element and the second heater element in a first configuration when an input supply voltage is at a first voltage level. The switch circuit may also automatically couple the first heater element and the second heater element in a second configuration when the input supply voltage is at a second voltage level.