Coaxial Connector With Spring-Loaded PCB Contacts for HF Assembly
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Solution Overview
Problem
Existing coaxial connectors require valuable installation space and increased assembly effort due to the need for cable laying or soldering, especially when connecting to circuit boards in devices that handle high-frequency signals.
Innovation Solution
The coaxial connector features axially movable, spring-loaded contact pins that allow for reliable electrical connection without soldering, enabling installation even when the circuit board is assembled, with predefined end positions and rounded contact surfaces for tolerance compensation, and a secure high-frequency connection through a hollow cylindrical external contact and fixing thread.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct soldering or adapter cable connection is used, then reliable electrical contact is achieved, but assembly effort and installation space requirements increase
Solution Approach 1:
The contact pins are spring-loaded to automatically press against the circuit board contacts, enabling self-alignment and self-contacting during insertion. This eliminates the need for precise manual positioning or additional fastening operations, reducing assembly complexity while maintaining reliable electrical contact through the spring force ensuring consistent pressure and contact quality.
Solution Approach 2:
The invention replaces the traditional mechanical soldering process or adapter cable connection with a spring-loaded pin mechanism. The spring force provides continuous pressure to maintain reliable electrical contact without requiring thermal processes or additional connection components, thereby simplifying the overall assembly process.
2Reliability
If direct soldering is used, then reliable electrical contact is achieved, but installation space requirements increase
Solution Approach 1:
The contact pins are designed to be axially movable rather than fixed, allowing them to dynamically adjust their position as the circuit board is inserted. The spring-loaded mechanism enables the pins to extend and make contact automatically during insertion, eliminating the need for additional space required for manual positioning or soldering operations.
3Adaptability or versatility
If adapter cable connection is used, then connection flexibility is achieved, but assembly effort and costs increase
Solution Approach 1:
The invention merges the functions of the connector and the electrical connection into a single integrated component. The contact pins are directly formed as part of the connector body, combining the mechanical connection function with the electrical contact function. This eliminates the need for separate adapter cables or additional connection components, reducing assembly complexity while maintaining connection flexibility through the spring-loaded design.
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 design simplifies assembly, reduces space requirements, and ensures reliable high-frequency connections without the need for cable laying or soldering, facilitating quick and easy installation in devices like RFID reading devices.
Implementation Method 1
resilient contact pins, the coaxial connector can be installed when the circuit board is already assembled
Implementation Method 2
a compression spring arranged in the sleeve element
Data Source
AI summary
A coaxial connector for installation in a device housing comprises a base body that has a flange for placing the coaxial connector against a wall of the device housing, wherein at least two coaxial connection contacts and at least two circuit board contacts electrically connected thereto for connecting the coaxial connector to a circuit board arranged in the device housing are arranged at the base body. The circuit board contacts have axially movable contact pins that are spring-loaded in an extension direction facing away from the base body.