Jump Starter Reverse Charging for Low-Battery Cold Starts
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Solution Overview
Problem
Traditional starting power supplies face issues such as inconvenient charging methods, potential deep discharge, damage from insufficient battery, and low-temperature operation limitations, especially when external charging devices are unavailable or impractical.
Innovation Solution
A starting power supply device capable of reverse charging, utilizing a car battery to charge a rechargeable battery when its level is low, equipped with a battery level detection module, bidirectional control module, and temperature detection and heating modules to ensure sufficient battery level and protect the rechargeable battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional starting power supplies use external charging devices, then charging function is provided, but charging convenience deteriorates and portability is reduced
Solution Approach 1:
The patent applies reverse charging by inverting the traditional charging direction. Instead of using external charging devices to charge the starting power supply, the starting power supply charges the car battery, which then charges the starting power supply indirectly. This is achieved through a control module that detects battery levels and activates reverse charging when the starting power supply's battery level is low, resolving the contradiction by eliminating the need for external charging devices while maintaining charging functionality.
2Productivity
If starting power supplies support multiple ignitions, then usability is improved, but battery capacity depletes and deep discharge risk increases
Solution Approach 1:
The patent employs feedback mechanisms through a control module that continuously detects the battery level of the starting power supply. When the battery level drops below a threshold after supporting multiple ignitions, the system automatically activates reverse charging to recharge the battery using the car battery as the power source. This feedback loop ensures the battery is protected from deep discharge while maintaining the ability to support multiple ignitions, resolving the contradiction between productivity and reliability.
3Adaptability or versatility
If starting power supplies operate in low-temperature areas, then adaptability is improved, but battery performance deteriorates
Solution Approach 1:
The patent applies preliminary action by detecting low-temperature conditions before they significantly impact battery performance. The control module monitors temperature and, when low temperature is detected, pre-activates the heating element to warm the battery. This preliminary heating action restores battery chemical activity and electrical performance before the battery is used for starting, thereby maintaining adaptability to low-temperature environments while preserving adequate starting power.
4Ease of operation
If starting power supplies remain connected when not in use, then readiness is maintained, but self-discharge increases
Solution Approach 1:
The patent applies dynamics by making the connection state between the starting power supply and the car battery dynamic rather than static. The control module continuously monitors the battery level and automatically switches between connected and disconnected states. When the battery level is sufficient, the system disconnects to prevent self-discharge; when the battery level drops below a threshold, the system reconnects to enable reverse charging. This dynamic connection management maintains readiness for use while minimizing energy loss from self-discharge during non-use periods.
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
Ensures sufficient battery level by real-time detection and reverse charging, prevents deep discharge, maintains optimal temperature for efficient operation, and provides lighting in poor visibility conditions, enhancing user convenience and battery protection.
Implementation Method 1
The bidirectional control module includes a magnetic latching relay, a forward control circuit connected to the main control module and the magnetic latching relay, and a reverse control circuit connected to the main control module and the magnetic latching relay.
Data Source
AI summary
A starting power supply device capable of reverse charging includes a main control module, a rechargeable battery connected to the main control module, and a battery level detection module connected to the main control module and the rechargeable battery. The battery level detection module is used for detecting a battery level of the rechargeable battery to generate a battery level signal, and sending the battery level signal to the main control module. The main control module is used for obtaining the battery level signal to determine the battery level of the rechargeable battery. Moreover, when the battery level of the rechargeable battery is lower than a preset battery level, the main control module is used for obtaining electrical energy from a car battery to charge the rechargeable battery reversely. By configuring the battery level detection module, the battery level of the rechargeable battery is detected in real time.