Portable Electric Heater Battery Swapping for Extended Outage Heating
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Solution Overview
Problem
Conventional backup heating systems during power outages are inadequate for extended periods, as they either rely on impractical or hazardous generators, or battery-powered systems that require frequent recharging due to low energy density, failing to maintain comfortable temperatures in large spaces.
Innovation Solution
A rechargeable backup electric heating system utilizing high-energy-density rechargeable batteries, with a rapid recharging circuit and high-capacity storage batteries, allowing for extended heating duration by alternating battery packs and adjusting heat output based on ambient temperature through a microprocessor-controlled resistive heating element configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional battery-powered heating systems are used, then portability and clean operation are achieved, but heating duration is limited due to low energy density requiring frequent recharging
Solution Approach 1:
The patent transitions from conventional low-energy-density batteries to high-energy-density lithium-ion batteries, fundamentally changing the energy storage parameter. This enables the heating system to operate for extended periods (multiple hours) without recharging, directly resolving the contradiction between heating duration and energy density requirements
2Power
If high-power heating elements are used to heat large spaces, then heating effectiveness is improved, but battery energy consumption increases beyond available capacity
Solution Approach 1:
The patent implements a microprocessor-controlled system that dynamically adjusts heating element power output based on ambient temperature sensors and user preferences. This dynamic control optimizes energy consumption to match actual heating needs, enabling effective heating of large spaces while staying within the energy constraints of portable battery systems
3Duration of action of moving object
If multiple battery packs are used to extend heating duration, then system weight and complexity increase
Solution Approach 1:
The patent integrates multiple lithium-ion battery cells into unified battery packs with built-in management systems that handle charging, discharging, and monitoring functions. This merging approach extends heating duration while minimizing the increase in system complexity through centralized control architecture
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
The system provides sustained heating for extended periods by optimizing battery pack energy density and recharging efficiency, ensuring comfortable temperatures in large spaces during power outages while minimizing battery wear and energy consumption.
Implementation Method 1
microprocessor-controlled resistive heating element configuration
Data Source
AI summary
A rechargeable backup electric heating system includes a rechargeable portable electric heater, multiple rechargeable battery packs, a rapid recharging circuit, and one or more high capacity storage batteries, from which the battery packs are recharged. The rechargeable portable electric heater has a design power output of P watts, which is determined by the BTU/hr of heat output required to maintain a target temperature in living space under prevailing outdoor temperature conditions. There are n sets of rechargeable battery packs, each having a weight of B kg. At any given time, one of the battery packs is within or attached to the heater and serving as its source of electric power, and (n−1) battery packs are being recharged by the storage battery through the recharging circuit.