Functional Contactor With Resin Guide For Positioning
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Solution Overview
Problem
In portable electronic devices, conductive contactors can cause static electricity to flow into circuit substrates, leading to damage, and leakage currents during charging can result in user discomfort or injury. Additionally, low capacitance in these contactors attenuates RF signals, and the process of soldering small, elastic conductors can result in positional variability and defects.
Innovation Solution
A functional contactor with a clip-shaped conductor and non-conductive resin arrangement guide is used to align and stabilize the conductor during soldering, providing electrostatic discharge protection, blocking leakage currents, and enhancing RF signal transfer by ensuring precise positioning and confinement of the conductor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the area of the electrode is made large to increase capacitance, then the capacitance of the functional element is improved, but the conductive elastic portion cannot be fixed properly and position varies causing defects
Solution Approach 1:
A non-conductive resin is introduced as an intermediary substance between the large-area electrode and the conductive elastic portion. This resin fills the space and provides mechanical support, enabling the elastic portion to be properly positioned and fixed without compromising the large electrode area needed for high capacitance.
Solution Approach 2:
The non-conductive resin is applied locally at specific positions where the conductive elastic portion needs to be fixed, rather than covering the entire electrode area. This allows the electrode to maintain its large overall area for high capacitance while providing localized fixation points for precise positioning of the elastic portion.
2Reliability
If a conductive contactor is used to connect metal housing to circuit substrate, then electrostatic discharge protection is improved, but leakage current flows to external housing causing user discomfort or injury
Solution Approach 1:
The functional element changes the electrical parameters of the connection path by introducing controlled capacitance and resistance characteristics. The non-conductive resin provides electrical insulation with specific dielectric properties, modifying the electrical behavior to block leakage current while maintaining electrostatic discharge protection capabilities.
Solution Approach 2:
The contactor assembly uses composite material structure combining conductive elements (for ESD protection) with non-conductive resin (for insulation and positioning). This composite structure enables simultaneous achievement of electrostatic discharge protection and leakage current blocking functions.
3Reliability
If soldering is performed to bond conductive elastic portion to functional element, then electrical connection is improved, but the conductive elastic portion is not fixed and position varies causing defects
Solution Approach 1:
The non-conductive resin is applied in advance to the electrode or functional element before the soldering process. This preliminary action creates a positioning structure that guides and constrains the conductive elastic portion during subsequent soldering, preventing position variation and ensuring precise alignment.
Solution Approach 2:
The non-conductive resin acts as a mediator between the soldering process and the conductive elastic portion, providing mechanical support and position fixation that complements the electrical connection being established through soldering.
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
This solution prevents positional variability and defects during soldering, improves the accuracy and reliability of the bonding process, and allows for efficient production by stabilizing the conductor and enhancing communication signal transfer while protecting against electrostatic discharges and leakage currents.
Implementation Method 1
an arrangement guide formed to surround at least a part of the clip-shaped conductor on the upper surface of the functional element so as to align a position of the clip-shaped conductor and made of a non-conductive resin
Implementation Method 2
a conductive contactor (or a conductive gasket) is installed between an external housing and an embedded circuit substrate of the portable electronic device
Implementation Method 3
a non-conductive resin
Implementation Method 4
a functional element electrically connected in series to the clip-shaped conductor using solder
Data Source
AI summary
A functional contactor is provided. A functional contactor according to an exemplary embodiment of the present invention comprises; a clip-shaped conductor having elasticity which is in electrical contact with a conductor of an electronic device; a functional element which is electrically connected to the clip-shaped conductor in series via a solder and comprises a first electrode and a second electrode respectively provided on the entire upper and lower surfaces thereof; and an arrangement guide which is formed to surround at least a part of the clip-shaped conductor on the upper surface of the functional element so as to arrange the position of the clip-shaped conductor and is made of nonconductive resin.