Flash double-temperature linkage temperature controller
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional flashing adjustable thermostats in electric kettles face issues of low power capacity, short service life, and high noise due to frequent full-power operations during heat preservation, which limits their effectiveness and longevity.
Innovation Solution
A flash double-temperature linkage temperature controller is designed with a double-circuit configuration using two sets of movable and fixed contact piece sets connected through a linkage rod and adjustable ceramic posts, allowing for differential temperature control between high-power and low-power heating tubes, reducing high-power operation frequency and noise during heat preservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a traditional single-circuit flashing adjustable thermostat is used, then the device structure is simple, but the power capacity is low and not suitable for large current loads
Solution Approach 1:
The single-circuit thermostat is segmented into two independent circuits: a high-power circuit with first movable and fixed contact piece sets, and a low-power circuit with second movable and fixed contact piece sets. This segmentation allows each circuit to be optimized for its specific power level, resolving the contradiction between structural simplicity and power capacity by creating modular independent circuits rather than attempting to design a single universal circuit.
2Reliability
If a traditional single-circuit flashing adjustable thermostat operates at full power during heat preservation, then temperature control is achieved, but the service life is greatly reduced due to frequent contact activation
Solution Approach 1:
The system dynamically switches between high-power and low-power circuits based on temperature conditions. During heat preservation, when the temperature difference is small, the low-power circuit is activated instead of the high-power circuit. This dynamic adaptation reduces the operating frequency of the high-power contacts, extending their service life while maintaining effective temperature control.
3Power
If a traditional single-circuit thermostat operates at full power, then heating effect is strong, but noise is large particularly obvious during heat preservation at night
Solution Approach 1:
Different power levels are applied locally based on specific operational conditions. During heat preservation when minimal heating is needed, the low-power circuit is used which generates minimal noise. During rapid heating phases, the high-power circuit is used when noise is less problematic. This local quality differentiation resolves the contradiction by matching power output to actual heating needs rather than operating at constant full power.
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 solution enhances the power capacity, extends the service life of the electric kettle by reducing high-power contact operation, and significantly reduces noise during heat preservation, enabling silent or low-noise operation.
Implementation Method 1
The bimetallic strip is bent and deformed due to temperature changes, which then causes flashing closure or separation of the movable contact and the fixed contact
Data Source
AI summary
A flash double-temperature linkage temperature controller has an arrangement that enables contacts of two movable contact sheet sets and two static contact sheet sets to sequentially operate at different temperatures, and a desired fixed temperature difference is obtained. The two movable contact sheet sets are respectively connected to the two static contact sheet sets to control two electric heating tubes, so that the effect whereby two electric heating tubes (high power) work during water heating and a single electric heating tube (low power) works during heat preservation heating is achieved, and the working frequency of the high-power contact sets is greatly reduced.