Inductor Connection Area Latching for Surface Mount Coplanarity
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Solution Overview
Problem
Existing methods for surface mounting inductive components with thick wires are unreliable due to insufficient coplanarity of connection areas, making it difficult to achieve reliable surface mounting.
Innovation Solution
The electrical component features a connection area with a reshaped wire end that forms a latching edge or indentation, allowing for precise latching with a mounting facility, ensuring planarity and secure attachment, which can include a connecting piece for economical and simple mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If thick wires are used for inductive components, then the component can handle higher currents and power, but the connection areas become insufficiently coplanar making surface mounting difficult
Solution Approach 1:
The wire is segmented into different functional zones: the winding portion for inductance and the connection area portion for mounting. The connection area is separated from the coil form by a distance, allowing independent positioning and planarization of the connection areas without affecting the winding structure.
Solution Approach 2:
The connection areas are positioned in a different spatial dimension (spaced downwardly from the coil form) rather than being coplanar with the winding. This vertical separation allows the connection areas to be arranged in a plane suitable for surface mounting while maintaining thick wire construction.
2Reliability
If conventional PTH mounting is used for thick-wire inductive components, then reliable electrical connection is achieved, but flexible and compact surface mounting is not possible
Solution Approach 1:
The connection area serves multiple functions: it provides electrical connection (like PTH), enables surface mounting (like SMD), and allows for mechanical latching with the mounting facility. This multi-functionality replaces the need for separate connection pins and enables flexible mounting options.
Solution Approach 2:
A mounting facility (plate) is introduced as an intermediary between the connection areas and the printed circuit board. This mounting facility provides a standardized interface for surface mounting while accommodating the thick-wire construction and ensuring reliable electrical connection.
3Strength
If connection areas are spaced downwardly from the coil form to enable mounting facility placement, then secure latching is achieved, but the component height increases
Solution Approach 1:
The connection areas are made resilient and capable of elastic deformation. During mounting, the connection areas are elastically displaced to accommodate the mounting facility, then spring back to provide continuous contact force and secure latching. This dynamic behavior enables strong latching with minimal height increase.
Solution Approach 2:
The connection areas are pre-configured with latching edges and indentations that anticipate the mounting facility geometry. The mounting facility is clamped between the coil form and connection areas, with the connection areas already positioned to provide downward pressure for tight latching.
Data Source
AI summary
An electrical component, a component arrangement and a method for producing a component arrangement are disclosed. In an embodiment an electrical component includes a coil form and a winding of a wire around the coil form and a connection area comprising a wire end of the wire, wherein the connection area is configured to latch with a mounting facility.