Detachable EV Battery Pack Charging for Tool Power Sharing
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Solution Overview
Problem
Existing riding mowers have battery packs that are not detachable, limiting their use as a power source for other tools, and requiring users to carry additional batteries for outdoor work.
Innovation Solution
An electric vehicle with a detachable power supply device that includes a charger and battery pack, allowing the battery pack to be used with other power tools and serving as an emergency power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the battery pack is integrated with the vehicle body, then the structural stability is improved, but the adaptability deteriorates
Solution Approach 1:
The power supply system is divided into separate modules: the battery pack and the vehicle body are independent components that can be detached from each other. The battery pack includes a battery module and a control module, which can be separately assembled and disassembled, enabling both structural stability during operation and adaptability for different applications.
Solution Approach 2:
The battery pack is designed as a universal power source that can be used with multiple different vehicles and power tools. By standardizing the battery pack interface and control system, it becomes adaptable to various applications beyond a single vehicle model, resolving the contradiction between stable integration and versatile adaptability.
2Reliability
If the battery pack is fixed in the vehicle body, then the reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
The battery pack transitions from a fixed state to a dynamic state, allowing it to be securely installed during operation for reliability, and easily removed when charging or replacement is needed. The control module enables automatic connection and disconnection, making the system adaptable to both stable operation and convenient user interaction.
3Adaptability or versatility
If the battery pack is detachable, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The control module is nested within the battery pack structure, integrating the control circuitry and power management functions into a compact unit. This nested design allows the detachable battery pack to maintain adaptability while minimizing the complexity of additional components needed for detachment and reconnection.
4Adaptability or versatility
If a separate battery pack is used for power tools, then the adaptability is improved, but the loss of substance increases
Solution Approach 1:
The battery pack serves multiple functions: it powers the vehicle, charges itself when docked, and can be removed to power other tools. This universal design eliminates the need for separate batteries for different applications, reducing material consumption and waste while maintaining high adaptability across various uses.
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 detachable power supply device allows for convenient charging and use as an emergency power source, and enables the battery pack to be shared with other power tools, increasing usage efficiency and reducing user costs.
Implementation Method 1
the inverter unit is used to invert the power obtained by the docking interface from the battery pack into alternating current
Implementation Method 2
the control unit controls the charging portion to charge the battery pack
Data Source
AI summary
The disclosure provides an electric vehicle. The electric vehicle includes: a vehicle body provided with a power input port and a power supply device. The power supply device includes a charger and a detachable battery pack. The charger includes a power interface for obtaining external power, a charging portion provided with a docking interface, an output part, and a control unit. The output part includes a first power output interface connected with the power input port to supply power to the electric vehicle. When the power interface is connected with the external power, the control unit controls the charging portion to charge the battery pack.