Actuation Device Winding Wire Depression Geometry
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Solution Overview
Problem
Existing electromagnetic actuation devices face issues with material weakening and potential tearing of winding wires due to tensile stress during the bending process, as the wires are not adequately relieved, leading to damage and reduced strength.
Innovation Solution
Incorporating a depression geometry in the contact element's bending region, which shortens the winding wire's path and reduces tensile stress, preventing material weakening and damage by allowing the wire to follow a shorter, more curved route, thus avoiding excessive strain during bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the contact element is bent to connect the winding wire, then the electrical connection is achieved, but tensile stress acts on the winding wire causing material weakening and potential tearing
Solution Approach 1:
The contact element is designed with a depression geometry that creates a three-dimensional path for the winding wire. Instead of bending along a two-dimensional surface, the wire follows a contoured path through the depression, effectively distributing the bending stress across multiple spatial dimensions and reducing tensile stress concentration.
Solution Approach 2:
The depression geometry in the contact element provides a curved surface that guides the winding wire through a smooth arc rather than a sharp bend. This curvature allows the wire to follow a more gradual path, reducing the radius of curvature and minimizing tensile stress while maintaining the necessary bending for electrical connection.
2Strength
If relief is imparted to the winding wire during bending, then tensile stress is reduced, but additional process steps are required increasing manufacturing complexity
Solution Approach 1:
The depression geometry is integrated directly into the contact element structure during its formation process. The relief path is not a separate component or post-processing feature but is merged into the basic geometry of the contact element itself, allowing the wire to follow the contoured surface without requiring additional manufacturing steps.
Solution Approach 2:
The depression geometry in the contact element automatically provides the relief path for the winding wire during the bending process. The structure itself serves the dual function of providing electrical connection and protecting the wire from excessive tensile stress, eliminating the need for external relief mechanisms or additional process steps.
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 depression geometry effectively minimizes tensile stress on the winding wire, preventing material deformation and tearing, thereby enhancing the durability and reliability of the actuation device by maintaining the wire's integrity during the bending process.
Implementation Method 1
an electromagnetic actuation device with an in particular elongated actuation element which preferably has a permanent magnet means and can be adjusted relative to a stator on the basis of a magnetic actuation force which can be generated by the stator, wherein the stator has a coil winding
Implementation Method 2
actuation element which preferably has a permanent magnet means
Data Source
AI summary
An electromagnetic actuation device with an actuation element, which can be adjusted relative to a stator on the basis of a magnetic actuation force which can be generated by the stator, wherein the stator has a coil winding, the winding wire of which is guided to a contact element bent at a bending region and is fixedly and electrically conductively connected to the same, wherein the contact element (5) has a depression geometry (9) in a bending region (7), which shortens a bending path of the winding wire (4) and through which the winding wire (4) passes.