Jumpstart Adapter Circuit for Power Tool Battery Voltage Matching
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Solution Overview
Problem
Existing solutions for jumpstarting a vehicle, such as using another automobile or a portable emergency starting power supply, are either inefficient due to long waiting times or unreliable due to insufficient stored energy in the portable battery.
Innovation Solution
An automobile jumpstart adapter that includes a shell with an input terminal, a jumpstart output terminal, and a circuit board with a voltage identification circuit and a voltage conversion circuit, allowing a portable lithium battery from a power tool to be used for jumpstarting by converting the battery's voltage to the appropriate voltage for the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a portable emergency starting power supply is used, then the waiting time for rescue is reduced, but the stored energy may be insufficient to start the automobile
Solution Approach 1:
The patent changes the voltage parameter by using a voltage conversion circuit to transform the high voltage (18V-24V) from power tool batteries into the appropriate starting voltage (12V) for automobiles. This allows the use of commonly available power tool batteries as emergency starting power, resolving the contradiction by providing both immediate availability and sufficient energy through proper voltage matching
2Adaptability or versatility
If rechargeable lithium batteries from hand-held power tools are used, then the availability of emergency power is improved, but the voltage incompatibility prevents direct use
Solution Approach 1:
The patent introduces a voltage conversion circuit as an intermediary device between the power tool battery and the automobile starting system. This intermediary component handles the voltage transformation, allowing the battery to serve its emergency starting function without requiring modification to the battery itself or the automobile starting system
Solution Approach 2:
The voltage conversion circuit changes the electrical parameter (voltage) from the high voltage range (18V-24V) of power tool batteries to the standard 12V automobile starting voltage, enabling compatibility between otherwise incompatible systems
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 and reliable jumpstarting of a vehicle without the need for another vehicle or waiting for a rescue team, as it converts the voltage of a portable lithium battery to match the vehicle's starting voltage, ensuring a stable power supply for emergency starts.
Implementation Method 1
the voltage identification circuit identifies an appropriate output voltage corresponding to a vehicle battery
Implementation Method 2
the voltage conversion circuit converting power from the portable battery to the appropriate output voltage
Data Source
AI summary
The utility model refers to an automobile start-up adapter, wherein it comprises a shell and a circuit board provided inside the shell. The shell is provided with an input terminal for electrically connecting with an output terminal of a lithium battery of a power tool and an output terminal for electrically connecting with a clamp. The input terminal and the output terminal are communicated through a circuit board, and a voltage identification circuit and a voltage conversion circuit are provided on the circuit board. The automobile start-up adapter of the utility model can use the lithium battery of the hand-held electric tool to supply power for the emergency start-up of the automobile.