Power Tool Battery Pack Type-C Thermal Power Control
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Solution Overview
Problem
Battery packs for power tools often operate at high temperatures for extended periods, posing safety risks and reducing their lifespan.
Innovation Solution
A battery pack design featuring a power control module that adjusts the charge and discharge power of a Type-C interface based on the battery pack's temperature, using temperature detection units and control modules to manage voltage and current.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the battery pack operates at high power for extended periods, then the productivity and power output are improved, but the temperature increases causing safety hazards and reduced lifespan
Solution Approach 1:
The patent implements a temperature feedback control mechanism where temperature detection units continuously monitor the battery pack temperature and feed this information to the power control module. The power control module then adjusts the charge and discharge power of the Type-C interface based on the detected temperature, creating a closed-loop feedback system that dynamically balances power output with thermal safety
Solution Approach 2:
The power control module dynamically changes the operating parameters (charge power and discharge power) of the Type-C interface based on temperature conditions. When temperature exceeds preset thresholds, the module reduces power parameters to prevent overheating, while allowing higher power operation when temperature is within safe ranges, thus adapting system parameters to thermal conditions
2Reliability
If the battery pack temperature is reduced through power management, then the safety and lifespan are improved, but the power output capability may be limited
Solution Approach 1:
The patent employs dynamic power management where the power control module continuously adjusts the charge and discharge power of the Type-C interface based on real-time temperature conditions. Rather than fixing power limits, the system dynamically modulates power output to maintain safety while maximizing performance when conditions permit, creating a flexible balance between reliability and power capability
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 effectively reduces the risk of high-temperature safety hazards and extends the battery pack's lifespan by dynamically managing power based on temperature thresholds.
Implementation Method 1
the temperature detection unit includes a first temperature detection unit and/or a second temperature detection unit, where the first temperature detection unit is used for detecting the temperature of the power control module in the battery pack, and the second temperature detection unit is used for detecting the temperature of the multiple cells in the battery pack
Data Source
AI summary
A battery pack configured to be capable of supplying power to a power tool. The battery pack includes a housing assembly; multiple cells disposed in the housing assembly; a first interface configured to be connectable to a first charging device and configured to be capable of supplying power to the power tool; a second interface configured to be connectable to a second charging device; and a power control module configured to be connected to the second interface. The power control module is used for changing the charge power and/or discharge power of the second interface according to the temperature of the battery pack.