Flexible Substrate Connector With Protection Sheet Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing connectors attached to flexible substrates with printed flexible conductors face disconnection issues when a heating treatment is applied to cure the adhesive agent, as the resin film can dissolve and the adhesive agent can apply force to the flexible conductor.
Innovation Solution
A connector design that includes a housing with contacts, a protection sheet with a pressure-sensitive adhesive layer, and an adhesive layer between the housing and the protection sheet, which prevents direct contact between the adhesive agent and the flexible conductor during heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an adhesive agent made of a thermosetting resin or a thermoplastic resin is used to bond the insulators to the flexible substrate, then the adhesive agent can be cured by heating treatment, but the heating treatment may dissolve the resin film and cause the flexible conductor to deform
Solution Approach 1:
The protection sheet serves as a mediator that allows the adhesive bonding process to proceed with heating treatment while preventing the harmful effects on the flexible conductor. The adhesive agent can be applied and cured normally for easy manufacturing, but the protection sheet prevents deformation and maintains manufacturing precision of the conductor position
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 solution effectively prevents deformation and disconnection of the flexible conductors by isolating the adhesive agents from direct contact with the conductors, ensuring a reliable electrical connection and waterproofing.
Implementation Method 1
a protection sheet constituted of an insulating film having a pressure-sensitive adhesive layer formed on one surface of the protection sheet and disposed between the housing and the flexible substrate such that the pressure-sensitive adhesive layer faces the flexible substrate
Implementation Method 2
an adhesive layer bonding the housing to the protection sheet is disposed between the flat surface and the protection sheet
Implementation Method 3
when a heating treatment is performed to cure an adhesive agent applied to the adhesive part for the purpose of bonding each of the first insulator 2 to the second insulator 3 and the flexible substrate 1
Data Source
AI summary
A connector includes a contact connected to a flexible conductor, a housing that is attached to a flexible substrate and retains the contact, and a protection sheet that is constituted of an insulating film having a pressure-sensitive adhesive layer formed on one surface thereof and is disposed between the housing and the flexible substrate such that the pressure-sensitive adhesive layer faces the flexible substrate, the protection sheet being disposed so as to cover at least a front surface part of the flexible substrate on which the flexible conductor is formed, and is adhered to the flexible substrate with the pressure-sensitive adhesive layer, the housing having a flat surface facing the flexible substrate, an adhesive layer bonding the housing to the protection sheet being disposed between the flat surface and the protection sheet.