Circuitry Assembly with Insulated Conductive Layer for Reliable Connections
Solution Overview
Problem
Current electrical circuitry assemblies with 'back-bared' construction are prone to failure due to exposure of conductive layers, require thicker and more expensive materials, and are not flexible, leading to irreparable connections and increased manufacturing costs.
Innovation Solution
An electrical circuitry assembly with a conductive metal plate and a circuit partially covered by insulating films, where only a minimal area of the conductive layer is exposed for connection, supported by an adhesive means and sealed to prevent environmental exposure, using techniques like welding for secure bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conductive layer is exposed from both sides for electrical connection, then electrical connection is established, but the conductive layer is exposed to environment and requires additional protection steps
Solution Approach 1:
The patent divides the conductive layer exposure into two separate sections: a first exposed section on the first side and a second exposed section on the second side. This segmentation allows each side to be independently protected by its own insulating film, reducing the need for complex additional protection steps while maintaining reliable electrical connections on both sides.
2Strength
If thicker copper foil is used to achieve minimum connection strength, then connection strength is improved, but manufacturing cost increases
Solution Approach 1:
The patent applies different properties to different parts of the conductive layer. The exposed sections are left uncovered to maintain electrical connection strength, while the non-exposed sections are covered by insulating films. This local differentiation allows the use of thinner copper foil overall while maintaining sufficient strength at the critical connection points.
3Adaptability or versatility
If flexible circuit is used to provide flexibility, then flexibility is improved, but movement may cause breaking of electrical connection
Solution Approach 1:
The patent applies insulating films to cover the conductive layer in non-exposed sections before the flexible circuit undergoes movement or deformation. This pre-protection creates a cushioning effect that prevents the conductive layer from being damaged during flexing, while still allowing the exposed sections to maintain reliable electrical connections.
4Strength
If mechanical strain relief solution is applied to achieve minimum connection strength, then connection strength is improved, but device complexity increases
Solution Approach 1:
The patent merges the functions of electrical connection and mechanical protection into a single integrated structure. The insulating films serve dual purposes: they protect the conductive layer from environmental exposure and provide mechanical strain relief. This eliminates the need for separate mechanical strain relief solutions, reducing device complexity while maintaining connection strength.
Data Source
AI summary
The invention is related to an electrical circuitry assembly as well as a method for manufacturing such an electrical circuitry assembly, wherein the assembly basically but not exclusively comprising of an electrically conductive metal plate and a circuit including a conductive layer and wherein both the metal plate and the circuit shall be electrically connected to each other.