Nonlinear-Resistance Resin Structure to Prevent Thickness Shorting
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Solution Overview
Problem
The existing nonlinear-resistance resin materials face a challenge where the addition of semiconducting whiskers to achieve conductivity leads to potential short-circuiting, causing a decrease in the resistance value below the designed nonlinear resistance characteristics, compromising the insulating function when the material should function as an insulator.
Innovation Solution
A nonlinear-resistance resin material is developed with first particles exhibiting nonlinear resistance characteristics, a first resin phase covering and binding these particles, and a second resin phase filling voids to prevent electrical conduction in the thickness direction, ensuring the material maintains its insulating function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of semiconducting whiskers are added to obtain sufficient conductivity, then the conductivity is improved, but the semiconducting whiskers are more likely to be joined together causing electricity to be conducted in the thickness direction, which leads to a decrease in resistance value below the designed nonlinear resistance characteristics and a decrease in the insulating function
Solution Approach 1:
The patent divides the resin material into multiple layers with different functions: a first resin layer containing semiconducting whiskers for providing conductivity in the plane direction, and a second resin layer with higher resistivity for preventing conduction in the thickness direction. This segmentation allows each layer to specialize in one function, preventing the whiskers from creating unwanted conduction paths while maintaining necessary conductivity.
Solution Approach 2:
The patent applies different properties to different regions of the material. The first resin layer has higher conductivity due to semiconducting whiskers, while the second resin layer has higher resistivity. This local differentiation of properties allows the material to have both conducting and insulating characteristics in different directions and regions, resolving the contradiction between needing conductivity and maintaining insulation.
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 a decrease in the nonlinear-resistance resin material's insulating function by ensuring the resistance value remains within the designed range, even under conditions where it should function as an insulator, thereby maintaining the intended electrical properties.
Implementation Method 1
a first resin phase containing second particles that are semiconducting or conducting and covering at least partially surfaces of some or all of the plurality of first particles; and a second resin phase having insulation properties and filling voids where none of the first particles and the first resin phase exists. The first particles adjacent to each other are bound and electrically connected to each other via the first resin phase.
Implementation Method 2
The nonlinear-resistance resin material has nonlinear resistance characteristics such that the nonlinear-resistance resin material exhibits insulation properties when a voltage lower than a threshold value is applied and that the nonlinear-resistance resin material exhibits conductivity when a voltage equal to or higher than the threshold value is applied.
Data Source
AI summary
A nonlinear-resistance resin material includes: a plurality of first particles having nonlinear resistance characteristics that exhibit insulation properties when a voltage lower than a threshold value is applied and exhibit conductivity when a voltage equal to or higher than the threshold value is applied; a first resin phase containing second particles that are semiconducting or conducting, and covering at least partially surfaces of some or all of the plurality of first particles; and a second resin phase having insulation properties, and filling voids where none of the first particles and the first resin phase exists. The first particles adjacent to each other are bound and electrically connected to each other via the first resin phase.