Electromagnetic Actuator Plate Spring Through Holes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromagnetic actuators with plate springs face challenges in maintaining precise positioning and visual inspection of the stator and mover during manufacturing, as the plate springs obstruct the space and make it difficult to check the relative positions and space between the components accurately.
Innovation Solution
Incorporating through holes in the plate springs that correspond to the space between the stator and mover allows for visual inspection and instrument insertion, enabling precise positioning and adjustment of the components, and using a spacer jig to set the space with high accuracy during manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plate springs are provided to elastically connect the stator and mover, then the stator and mover can be positioned appropriately and maintain space between them, but the plate springs partition the space inside the housing making it difficult to check the position and surface state of the stator and mover
Solution Approach 1:
The plate spring is segmented by forming through-holes in it, which divides the solid structure into sections that allow light and inspection tools to pass through. This segmentation enables visual inspection of the stator and mover positions while maintaining the spring's elastic connection function.
Solution Approach 2:
The through-holes in the plate spring act as intermediaries that allow inspection tools and light to penetrate through the plate spring structure. This creates a pathway for visual inspection without removing or compromising the plate spring's positioning function.
2Reliability
If plate springs are used to maintain space between stator and mover, then magnetic forces can act properly along the entire circumference, but high dimension accuracy is required for components relating to relative positions
Solution Approach 1:
The plate spring with through-holes enables self-inspection capability, allowing workers to visually verify the positioning accuracy of the stator and mover during assembly. This self-service inspection feature helps ensure proper dimensional accuracy without requiring additional complex measurement equipment.
Solution Approach 2:
The invention replaces complex mechanical measurement systems with simple visual inspection through the through-holes. This substitution allows for quick verification of positioning accuracy using basic tools like endoscopes or even visual inspection, reducing the need for high-precision mechanical measurement equipment.
3Strength
If plate springs cover the stator and mover, then the stator and mover can be elastically connected, but it becomes difficult to perform check work of the inside using measurement razors, endoscopes, or other instruments
Solution Approach 1:
The plate spring is divided into sections by through-holes, creating openings that allow inspection instruments to pass through and access the internal space. This segmentation maintains the overall structural integrity and elastic connection strength while providing access pathways for manufacturing inspection.
Solution Approach 2:
The plate spring has different local qualities: solid sections provide structural strength and elastic connection, while the through-hole sections provide inspection accessibility. This local differentiation allows the same component to fulfill multiple functions - maintaining strength where needed and providing access where required.
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
Enables easy visual checking and precise positioning of the stator and mover, facilitating accurate assembly and enhancing the vibration damping performance of the active vibration damper by ensuring proper magnetic forces are maintained.
Implementation Method 1
the stator and the mover being elastically connected to each other by a plate spring
Implementation Method 2
a magnetic field is caused through energization to coils provided at either of the stator or the mover, and the effect of the magnetic field is used to oscillate the stator and the mover relative to each other
Data Source
AI summary
An electromagnetic actuator including: a stator and a mover configured to have an oscillation force exerted between them, the stator and the mover being arranged in a direction orthogonal to a direction of oscillation with a space in between; and at least one plate spring connecting the stator and the mover to each other, the plate spring permitting relative displacement of the stator and the mover in the direction of oscillation while positioning the stator and the mover with respect to each other in the direction orthogonal to the direction of oscillation, wherein at least one through hole piercing the plate spring in a thickness direction is formed in a portion of the plate spring that corresponds to the space between the stator and the mover.