Conductive Spring Contact Curved Portion Housing Constraint
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Solution Overview
Problem
Conductive spring contacts in electronic apparatus often experience loose contact due to elastic fatigue, leading to ineffective electrical connections with electronic components.
Innovation Solution
A power supply device design featuring a conductive spring contact with a base portion, a bent first contact portion, and a curved portion that abuts against the housing, along with an interlocking feature, to maintain contact with the circuit board and prevent loose connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conductive spring contact is used to connect electronic components, then electrical connection is achieved, but loose contact occurs due to elastic fatigue
Solution Approach 1:
The patent applies curvature by designing the conductive spring contact with a curved portion instead of a straight configuration. This curved geometry allows the contact to better accommodate dimensional changes and maintain stable contact pressure with the circuit board, reducing loose contact caused by elastic fatigue during repeated use.
Solution Approach 2:
The patent changes the geometric parameters of the conductive spring contact by introducing a curved portion with specific radius and angle. This parameter modification optimizes the contact mechanics, allowing the spring contact to maintain reliable electrical connection while resisting elastic fatigue over extended operational periods.
2Stability of the object's composition
If the conductive spring contact is made more flexible to maintain contact, then contact stability improves, but structural strength decreases
Solution Approach 1:
The conductive spring contact is segmented into distinct functional portions: a base portion for structural support, a curved portion for flexibility and contact stability, and a contact portion for electrical connection. This segmentation allows each section to be optimized independently - the base portion maintains structural strength while the curved portion provides the necessary flexibility for stable contact.
Solution Approach 2:
Different portions of the conductive spring contact are given different structural qualities. The base portion has higher structural strength to provide support, while the curved portion has optimized flexibility to maintain contact stability. This local differentiation of material properties and structural characteristics resolves the contradiction between overall strength and contact stability.
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 design ensures stable and reliable electrical connections by utilizing the position limiting effect of the housing and the elasticity of the curved portion to keep the contact portion and circuit board in contact, effectively addressing the issue of loose contacts caused by elastic fatigue.
Implementation Method 1
the elasticity of the curved portion can keep the contact portion of the spring contact and the circuit board in contact
Data Source
AI summary
A power supply device includes a housing, a circuit board and a conductive spring contact. The housing has a receiving structure. The circuit board is disposed in the housing. The conductive spring contact is disposed in the receiving structure and includes a base portion, a contact portion and a curved portion. The contact portion is connected to the base portion and is bent relative to the base portion. The contact portion extends between the circuit board and a wall portion of the receiving structure, and the contacts the circuit board. The curved portion is connected to the contact portion and abuts against the wall portion.