Cordless Energy Storage Power Supply for High-Current DC Tool Output
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Solution Overview
Problem
Existing energy storage power supplies are unable to provide sufficient current to high-current electrical devices like garden electric tools, and their wired connections are inconvenient, prone to tangling, and limit the mobility of electrical devices during charging.
Innovation Solution
An energy storage power supply with a DC discharge interface capable of outputting a current of at least 20 amperes, equipped with a housing that includes a charging portion, a power supply main body, and a discharge portion, featuring a snap-fit or magnetic connection structure for secure attachment to electrical devices, allowing for cordless electrical connection and reduced wire usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wired electrical connection is used to connect the energy storage power supply and the electrical device, then the structure of the energy storage power supply is simplified, but the charging wires are prone to tangling, may trip the user, affect the appearance, and limit the use range of the electrical device
Solution Approach 1:
The patent extracts and removes the charging wire from the system by implementing a wireless charging interface. The energy storage power supply and electrical device directly contact through mating interfaces, eliminating the need for external charging wires, thereby resolving the tangling and mobility restrictions while maintaining structural simplicity
Solution Approach 2:
The patent introduces a magnetic field as an intermediary for energy transmission between the energy storage power supply and the electrical device. Through magnetic coupling, energy is transferred wirelessly, serving as a mediator that eliminates the need for physical wire connections while maintaining efficient power transfer
2Device complexity
If the DC output interface is designed for low-current electrical devices, then the structure is simple, but it cannot supply power for high-current electrical device such as garden electric tools
Solution Approach 1:
The patent designs a universal DC output interface that can accommodate both low-current devices (3C products) and high-current devices (garden electric tools). The interface structure incorporates multiple contact points and adjustable current output capabilities, allowing a single interface design to serve multiple device types with different power requirements
Solution Approach 2:
The patent implements a dynamic current output capability where the DC output interface can adjust its current delivery based on the connected device's requirements. The system dynamically switches between low-current mode for 3C products and high-current mode for garden electric tools, making the interface adaptable rather than fixed
Data Source
AI summary
Provided is an energy storage power supply, which includes a housing, a power connection portion, a power supply main body, and an output portion. The power connection portion, the power supply main body, and the output portion are provided in the housing. The power connection portion is configured to provide electric energy from outside to the power supply main body. The power supply main body is configured to store the electric energy. The output portion is configured to provide the electric energy stored in the power supply main body in a form of a direct current (DC) or an alternating current (AC) to an electrical device. The output portion includes at least one DC mating output unit. The electrical device is suitable for cordless electrical connection to the at least one DC mating output unit.