Electromagnetic Actuator Segmented Core for Wear and Speed
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromagnetic actuating apparatuses with soft-magnetic materials suffer from increased wear due to mechanical loads during movement tasks, compromising their strength and longevity.
Innovation Solution
The actuating element is divided into two sections: one optimized for magnetic permeability to enhance switching speed and another for wear resistance to withstand mechanical loads, using different materials such as soft-magnetic and austenitic materials, and connected to ensure synchronous movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the actuating element is formed integrally from soft-magnetic material, then magnetic field strength and switching speed are improved, but wear resistance and mechanical strength are deteriorated
Solution Approach 1:
The actuating element is divided into two separate sections: a first section made of soft-magnetic material for optimal magnetic permeability and switching speed, and a second section made of wear-resistant material for mechanical strength. These sections are connected to function as a unified actuating element, resolving the contradiction between magnetic performance and wear resistance.
Solution Approach 2:
The actuating element combines different materials in a composite structure - soft-magnetic material in the first section for magnetic field optimization and wear-resistant material in the second section for mechanical durability. This composite approach allows each section to be optimized for its specific function without compromising the other.
2Force
If the engagement area is formed from soft-magnetic material, then magnetic field bundling is improved, but mechanical strength under load is deteriorated
Solution Approach 1:
Different sections of the actuating element have different material properties optimized for their specific functions: the first section has high magnetic permeability for magnetic field bundling, while the second section has high mechanical strength for withstanding engagement loads. This local optimization resolves the contradiction between magnetic field strength and mechanical strength.
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
This design achieves both short switching times and extended lifespan by optimizing magnetic permeability and wear resistance, making the apparatus more robust for applications like motor vehicles.
Implementation Method 1
an electromagnetic actuating apparatus with an elongated actuating element (3) which forms an engagement area (11) at the end and can be moved by the force of a coil device (20), which is provided in a stationary manner
Implementation Method 2
the actuating element has permanent magnet means in places, which are designed to interact with a stationary core area (7)
Data Source
AI summary
An electromagnetic actuating apparatus with an elongate actuating element (3), which forms an engagement region (11) at the end and is capable of moving owing to the force of a coil device provided in stationary fashion, and sections of the actuating element have permanent magnets (4), which are designed to interact with a stationary core region (7), wherein a stationary bearing element (8) acting as a yoke is provided axially opposite the core region (7) for the actuating element (3), at least sections of which are in the form of a piston, wherein the actuating element (3) has two sections (10, 20; 3a, 3b), wherein a first section (19, 3a), which is arranged in the region of the permanent magnets (4), is optimized in terms of the magnetic conductivity and a second section (20, 3b), which is arranged in the engagement region, is optimized in terms of wear.