Terminal Plate Member with Deformable Section for Coil Component
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Solution Overview
Problem
The formation of a magnetic core by pressurizing magnetic powder on a coil component can cause deformation and stress on the terminal plate member, leading to potential cracks due to displacement of the terminal and extension members.
Innovation Solution
A terminal plate member with an easily-deformable section, such as a slit or thin member, is designed to absorb displacement during the pressurization process, reducing strain and stress on the magnetic core by extending along the width of the extension members and connecting them to the annular frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If magnetic powder is pressurized to form a magnetic core, then the magnetic core is formed, but deformation and stress occur in the terminal plate member leading to potential cracks
Solution Approach 1:
The annular frame is divided into multiple sections by introducing easily-deformable sections (slits or thin members) that segment the rigid structure. This segmentation allows specific portions to deform independently during pressurization, absorbing stress without compromising the overall structural integrity of the terminal plate member.
Solution Approach 2:
The physical parameters of the terminal plate member are changed by creating regions with different thicknesses or material properties. The easily-deformable sections have reduced thickness or modified material characteristics compared to the rest of the annular frame, enabling them to undergo controlled deformation during the pressurization process while maintaining the strength of other sections.
2Stability of the object's composition
If the terminal plate member is made rigid to maintain structural stability, then structural stability is improved, but deformation occurs during pressurization causing stress concentration
Solution Approach 1:
Different regions of the terminal plate member are assigned different mechanical properties. The easily-deformable sections possess local qualities of lower rigidity and higher deformability, while the main annular frame maintains its rigid structure. This local differentiation allows the plate to remain stable overall while accommodating localized deformation to relieve stress concentration.
Solution Approach 2:
The easily-deformable sections act as pre-designed cushioning elements that anticipate and absorb the stress generated during pressurization. By incorporating these deformable regions beforehand, the design prevents stress concentration from building up in the rigid portions of the terminal plate member and magnetic core.
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 easily-deformable section effectively suppresses deformation and strain in the terminal plate member, preventing cracks in the magnetic core and ensuring stable formation.
Implementation Method 1
an easily-deformable section provided in the annular frame at a proximal end of one of the pair of extension members, the easily-deformable section having a more easily deformable property than other sections of the annular frame when force is applied
Implementation Method 2
a magnetic core is formed by pressurizing a magnetic powder
Data Source
AI summary
A terminal plate member on which a terminal of a coil component is mounted including: an annular frame having an inner peripheral edge; a pair of extension members extending from the inner peripheral edge of the annular frame toward an inner space of the annular frame member in a first direction; and a deformable section provided in the annular frame at proximal end of one of the pair of extension members, the deformable section having a more easily deformable property than other sections of the annular frame when force is applied. The deformable section is provided along at least an entire width in a second direction of the one of the pair of extension members. The second direction is perpendicular to the first direction.