Supercapacitor Jumpstart Adapter for 12V/24V Emergency Voltage Conversion
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Solution Overview
Problem
Existing solutions for jumpstarting vehicles, such as using another vehicle's battery or portable emergency start-up power supplies, are either time-consuming or insufficient due to voltage and current limitations, particularly for large vehicles like trucks, as rechargeable lithium batteries for hand-held power tools cannot directly provide the necessary voltage and high currents.
Innovation Solution
A jumpstart adapter that includes a shell with a voltage conversion switch, input and output terminals, a circuit board with integrated circuit, supercapacitors, and relays, allowing for voltage selection and conversion between 12 V and 24 V, along with protection circuits and a locking structure, to securely connect a portable battery and discharge high currents to a vehicle battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rechargeable lithium batteries for hand-held power tools are used for jumpstarting, then portability and availability are improved, but voltage and current output are insufficient for large vehicles
Solution Approach 1:
The patent introduces a DC-DC converter as an intermediary device between the portable lithium battery and the vehicle battery. This converter acts as a mediator that transforms the electrical characteristics from the battery (18V, limited current) to match the vehicle's requirements (12V or 24V, high current up to 1000A), thereby resolving the contradiction between portability and power output capability
Solution Approach 2:
The patent applies parameter changes by using a DC-DC converter to dynamically adjust voltage and current parameters. The converter can output either 12V or 24V depending on the vehicle type, and can deliver high currents (up to 1000A) for emergency start-up, transforming the fixed parameters of the lithium battery into variable parameters that match different vehicle requirements
2Loss of time
If portable emergency start-up power supply is used, then waiting time for rescue is reduced, but stored energy may be insufficient when not charged recently
Solution Approach 1:
The patent applies preliminary action by enabling the portable power supply to be charged in advance using common power sources (computer USB ports, wall outlets, car cigarette lighters). This allows the device to be prepared and charged before emergency situations arise, ensuring sufficient stored energy is available when needed, thus resolving the contradiction between immediate availability and energy sufficiency
Solution Approach 2:
The patent makes the power supply universal by enabling charging through multiple common interfaces (USB, wall outlets, car cigarette lighters). This multi-functionality ensures the device can be recharged in various environments and situations, guaranteeing that stored energy can be replenished before emergencies occur, addressing the concern about insufficient energy when not recently charged
3Adaptability or versatility
If voltage conversion circuit is added to adapt to different vehicle voltages, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent achieves universality by designing a single DC-DC converter that can output both 12V and 24V. The converter automatically or manually adjusts its output voltage based on the connected vehicle type, allowing one device to serve multiple vehicle types (cars, trucks, motorcycles) without requiring separate devices for different voltages, thus improving adaptability while managing complexity through integrated design
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
Enables efficient emergency start-up of both small and large vehicles by converting portable battery power to appropriate voltages and currents, ensuring reliable and safe jumpstarting without the need for external assistance or long wait times.
Implementation Method 1
two or more supercapacitors in electrical communication with the integrated circuit. The integrated circuit may be configured to turn on or turn off the two or more relays to output a first voltage or a second voltage different from the first voltage
Data Source
AI summary
A device may include an enclosure having a shell, a voltage conversion switch on the shell, an input terminal, and a jumpstart output terminal in electrical communication with the input terminal. The device may also include a circuit board disposed within the shell. The circuit board may include an integrated circuit in electrical communication with the voltage conversion switch, two or more supercapacitors in electrical communication with the integrated circuit, two or more relays coupled to the two or more supercapacitors. The integrated circuit may be configured to turn on or turn off the two or more relays to output a first voltage or a second voltage based upon a voltage selection by the voltage conversion switch. The input terminal may be configured to electrically connect to an output terminal of a portable battery. The enclosure may be configured to be attached on one side of the portable battery.