Autonomous mobile device and wireless charging system thereof
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Solution Overview
Problem
Existing autonomous lawn mowers require wired charging stations, which are cumbersome, pose tripping hazards, and can lead to poor contact and electricity leakage. Additionally, aligning wireless charging devices for optimal charging is challenging, especially for large devices like autonomous lawn mowers.
Innovation Solution
An autonomous moving device wireless charging system that includes a wireless charging station with a transmitting end and an autonomous moving device equipped with a receiving end, a charging battery, a wireless charging locating module, a driving module, and a control module. The system automatically aligns and docks the device for wireless charging, using modules like signal line search and charging signal detection to facilitate efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired charging station is used, then charging function is provided, but tripping hazard and poor contact occur
Solution Approach 1:
The patent extracts the exposed pole piece from the charging station design, burying it underground. Only the charging interface remains accessible at ground level, eliminating the tripping hazard while maintaining charging functionality. This is achieved by having the pole piece extend into the ground and connect to the charging interface beneath the ground surface.
Solution Approach 2:
The patent replaces the mechanical wired connection system with a wireless charging system. The wireless charging transmitting end is embedded in the ground, and the receiving end on the mobile device communicates and charges without physical contact, eliminating both tripping hazards and contact reliability issues.
2Reliability
If wired charging station is used, then charging function is provided, but electricity leakage occurs
Solution Approach 1:
The patent replaces the mechanical wired electrical connection with a wireless electromagnetic field-based charging system. The wireless charging transmitting end generates an electromagnetic field that induces current in the receiving end, eliminating exposed conductors and the associated electricity leakage risks while maintaining charging functionality.
3Extent of automation
If wireless charging transmitting end is manually aligned, then charging alignment is achieved, but automation is reduced
Solution Approach 1:
The patent implements self-service alignment through automatic docking mechanisms. The mobile device autonomously navigates to the charging location and aligns its receiving end with the transmitting end using sensors and control systems, eliminating the need for manual alignment operations while achieving precise charging alignment.
Solution Approach 2:
The patent uses feedback mechanisms where sensors detect the position and alignment status of the receiving end relative to the transmitting end. The control system processes this feedback information and adjusts the device position automatically to achieve optimal alignment for charging, enabling autonomous operation.
4Stability of the object's composition
If wireless charging transmitting end is fastened to support, then alignment stability is improved, but device complexity increases
Solution Approach 1:
The patent merges the charging transmitting end directly with the ground structure, eliminating the need for separate support structures. The transmitting end is embedded in the ground, using the ground itself as the support, thereby reducing device complexity while maintaining alignment stability through the fixed ground installation.
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 system enables efficient and safe wireless charging of autonomous moving devices, eliminating the hazards associated with wired charging and ensuring optimal alignment for effective energy transfer, thus improving user safety and convenience.
Implementation Method 1
a wireless charging transmitting end, configured to wirelessly transmit a charging signal to a wireless charging receiving end to transmit electric energy
Data Source
AI summary
An autonomous moving device wireless charging system, including an autonomous moving device and a wireless charging station, the wireless charging station includes a wireless charging transmitting end; the autonomous moving device includes: a wireless charging receiving end, the wireless charging transmitting end wirelessly transmits a charging signal to the wireless charging receiving end to transmit electric energy; a charging battery, electrically connected to the wireless charging receiving end, to receive the electric energy transmitted from the wireless charging receiving end; a wireless charging locating module, the wireless charging locating module determines whether the autonomous moving device is at a charging location; a driving module; and a control module, connected to the wireless charging locating module and driving module, when the wireless charging locating module determines that the autonomous moving device is at the charging location, controlling the driving module, to make the autonomous moving device dock at the charging location.