Manual Power Supply for Temperature Measuring Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electronic thermometers face power source insufficiency due to battery discharge over time, lacking a convenient backup power solution, which renders them inoperable when batteries fall below the required voltage.
Innovation Solution
A temperature measuring device with a manual power supply system that converts kinetic energy from a rolling unit into electric power using an induction coil and permanent magnets, storing it in an energy storage unit for continuous operation, featuring a voltage stabilizer and gear-change mechanism to ensure stable power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If charging batteries are provided to extend usage time, then the duration of action is improved, but the reliability deteriorates because battery capacity is insufficient and batteries discharge over time
Solution Approach 1:
The user manually generates electric power by rolling the rolling unit before actual use. This preliminary action charges the energy storing unit in advance, ensuring the device has sufficient power when needed, thereby extending usable duration while maintaining reliability through user-controlled power generation.
Solution Approach 2:
The device enables self-powered operation through the manual power supply system. The user themselves generates the power needed by operating the rolling unit, eliminating dependence on pre-charged batteries and their inherent capacity limitations, thus improving both duration and reliability.
2Device complexity
If traditional batteries are used, then the device structure is simple, but the ease of operation deteriorates due to inconvenient battery replacement and power insufficiency
Solution Approach 1:
The manual power supply system allows users to generate and store power themselves by rolling the rolling unit. This eliminates the need for battery replacement operations entirely, greatly improving ease of operation while maintaining acceptable device complexity through the integrated manual charging mechanism.
3Use of energy by moving object
If batteries are used for power supply, then the initial power availability is good, but the loss of energy increases due to self-discharge over time
Solution Approach 1:
The manual power supply system allows users to continuously generate power by rolling the rolling unit whenever needed. This continuous capability to replenish power eliminates the energy loss associated with battery self-discharge during storage periods, as power is generated on-demand rather than being passively stored and gradually lost.
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
Provides a reliable and sustainable power source for electronic thermometers, allowing continuous temperature measurement without the need for frequent battery replacements, ensuring the device remains operational as long as the user can manually generate power.
Implementation Method 1
an energy converting unit disposed in the casing and coupled to the rolling unit; wherein the energy converting unit converts a kinetic energy of the rolling unit to an electric power
Data Source
AI summary
The invention provides a temperature measuring device with manual power supply which is substantially composed of a casing, a rolling unit, an energy converting unit, an energy storing unit, a temperature measuring unit and a display unit. After rolling or rotating the rolling unit on a plane surface, kinetic energy of the rolling unit is generated and converted to electric power through the energy converting unit and then stored in the energy storing unit. The electric power supplies the needed power to the temperature measuring device and the display unit. Thus, the temperature measuring device with manual power supply of the present invention can be provided with sufficient power at any time.