Load Implement Charging for Electric Working Machines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing charging systems for working machines propelled by electric traction motors require additional components and complex control strategies, increasing costs and complexity.
Innovation Solution
A working machine with a load implement body pivotably connected to the frame structure, featuring an electrical charge element on its surface, which can receive power from a vertically elevated power source by rotating the implement body to bring the charge element into a charging state, eliminating the need for separate charging mechanisms like pantographs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pantograph charging system is used, then charging functionality is achieved, but device complexity and cost increase
Solution Approach 1:
The load implement body is designed to serve dual purposes: its primary function of carrying and unloading material, and a secondary function of charging the energy storage system. By placing the electrical charge element on the load implement body, the same structural component performs both material handling and electrical charging, eliminating the need for a separate pantograph mechanism.
Solution Approach 2:
The charging system is merged with the load implement body structure. The electrical charge element is integrated onto the load implement body, combining the charging function with the material handling function in a single unified system, thereby reducing overall device complexity and component count.
2Reliability
If a separate pantograph control system is added, then charging control is achieved, but control strategy complexity increases
Solution Approach 1:
The existing control system that manages the load implement body's positioning and operation is extended to also control the charging function. The same control unit that manages material handling operations now also manages the electrical charge element's positioning and charging process, eliminating the need for a separate pantograph control system.
3Device complexity
If the electrical charge element is arranged on the load implement body, then charging is enabled without additional components, but the charge element must be brought into contact with the power source through rotation
Solution Approach 1:
The load implement body's own rotation mechanism, which is already necessary for material handling operations, is utilized to bring the electrical charge element into contact with the power source. The system uses its inherent motion capabilities to serve the charging function, eliminating the need for separate charging mechanisms or complex additional operational procedures.
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
Simplifies and reduces the cost of charging by utilizing existing components, allowing simultaneous unloading and charging, and enabling autonomous operation with reduced wear and increased efficiency.
Implementation Method 1
an electrical charge element electrically connected to the re-chargeable energy storage system, the electrical charge element being arranged on a surface portion of the load implement body and configured to, in a charging state, receive electric power from a vertically elevated power source
Data Source
AI summary
A working machine is provided, comprising a working machine frame structure, at least one electric machine configured to propel the working machine, a re-chargeable energy storage system electrically connected to the at least one electric machine, the at least one electric machine being operable by electric power received from the re-chargeable energy storage system, a load implement body configured to receive a load and being pivotably connected to the working machine frame structure at a pivot joint, and an electrical charge element electrically connected to the re-chargeable energy storage system, the electrical charge element being arranged on a surface portion of the load implement body and configured to, in a charging state, receive electric power from a vertically elevated power source, wherein the working machine is configured to bring the electrical charge element into the charging state by rotation of the load implement body around the pivot joint.