Transportation Plug Circuit for Lithium Battery Motor Standby Cutoff
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Solution Overview
Problem
Lithium battery motors experience high power consumption in standby mode, leading to battery depletion and potential abnormal startups during transportation due to continuous signal reception, and mechanical switches are often inconveniently located.
Innovation Solution
A transportation mode plug with a circuit component and sheath component, featuring a short circuit on the circuit board, insulation material sheath, and a plug buckle position, which allows the micro control unit to detect IO levels, cut off unnecessary power, and prevent foreign object entry into charging ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor remains in standby state to receive signals continuously, then the control function is maintained, but the power consumption increases and battery lifespan is reduced
Solution Approach 1:
The plug is designed with a short circuit that is activated in advance by simply inserting it into the charging port. This preliminary action automatically triggers the transportation mode without requiring any user configuration or manual switching, thereby immediately reducing power consumption while maintaining control functionality when needed.
Solution Approach 2:
The system automatically detects the plug insertion through the short circuit signal and self-switches to transportation mode. The micro control unit monitors the IO port level and autonomously adjusts the power consumption state, eliminating the need for manual intervention and ensuring optimal power management.
2Reliability
If the motor continues to receive signals during transportation, then the control system remains active, but abnormal startup occurs during transportation
Solution Approach 1:
The transportation mode plug is designed to be inserted in advance before transportation begins. The short circuit within the plug proactively disables the signal receiving function before any abnormal startup can occur, preventing the harmful effect rather than reacting to it.
Solution Approach 2:
The plug acts as an intermediary device between the user and the motor's control system. By inserting the plug, the user indirectly triggers the short circuit that mediates the shutdown of the signal receiving circuit, thereby preventing abnormal startup without requiring direct user interaction with the control system during transportation.
3Reliability
If mechanical switches are added for power outage during transportation, then power management is improved, but the device complexity increases and space is consumed
Solution Approach 1:
The transportation mode function is merged into the existing charging port infrastructure. The plug utilizes the same physical interface and circuit pathways already present in the motor, combining the power management function with the charging system rather than adding a separate mechanical switch mechanism.
Solution Approach 2:
The traditional mechanical switch is replaced with an electrical short circuit mechanism. Instead of using a physical switch that requires manual operation and occupies space, the plug creates an electrical short circuit that automatically triggers the transportation mode through circuit level detection, eliminating the need for complex mechanical components.
4Ease of operation
If the charging port is exposed, then the plug can be easily accessed, but foreign objects can enter and cause damage
Solution Approach 1:
The plug incorporates a sheath component that acts as a flexible protective covering. This sheath can be inserted into the charging port to seal the opening, preventing foreign object intrusion while maintaining ease of operation as the plug itself serves as the sealing element.
Data Source
AI summary
This utility model relates to a lithium battery motor and its transportation mode plug, and the transportation mode plug comprises a circuit component and a sheath component. The circuit component comprises a plug connector and a circuit board, and one end of the plug connector is fixedly connected to the circuit board. The sheath component is wrapped on the outside of the circuit board and one end of the plug connector. A short circuit is arranged on the circuit board. The micro control unit in the motor of this utility model controls the operation of the motor body by continuously detecting the level of the IO port. A short circuit is arranged on the circuit board to reduce the level of the IO port when the plug is inserted into the motor.