Coaxial Connector Deformation Prevention via Segmented Movable Terminal
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Solution Overview
Problem
Conventional coaxial connectors are prone to deformation during the mounting of a mating coaxial connector, which can lead to mechanical stress and potential failure.
Innovation Solution
A coaxial connector design featuring a probe with a cylindrical outer conductor, a connector main body with a hole for probe insertion, a fixed terminal, a movable terminal with a plate spring that overlaps with the outer conductor fixation portion, and a configuration that prevents deformation by distributing the force of the probe's push.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the movable terminal is pressed by the probe to enable mating connector mounting, then electrical connection is established, but the connector main body is deformed due to concentrated force
Solution Approach 1:
The movable terminal is divided into two functional parts: a contact portion that interfaces with the probe for electrical connection, and a pressing portion that distributes the applied force. This segmentation allows the pressing portion to bear the mechanical load while the contact portion maintains electrical connectivity, thereby preventing connector main body deformation during mating connector mounting.
Solution Approach 2:
The pressing portion acts as an intermediary element between the probe and the connector main body. It receives the force from the probe and distributes it to the connector main body in a controlled manner, preventing concentrated force that would cause deformation. The pressing portion mediates the mechanical interaction while the contact portion handles the electrical connection function.
2Volume of moving object
If the connector main body is made thinner to reduce size, then compactness is improved, but mechanical strength decreases making it more prone to deformation
Solution Approach 1:
By segmenting the movable terminal into contact and pressing portions, the pressing portion can be optimized specifically for mechanical strength and force distribution. This allows the connector main body to be made thinner for compactness while the pressing portion compensates by providing adequate structural support and force distribution during operation.
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 design effectively suppresses deformation of the connector main body during mounting, allowing for a thinner and more stable connector structure, reducing the risk of mechanical failure and enabling reliable high-frequency signal transmission.
Implementation Method 1
a plate spring that extends from the movable terminal fixation portion toward the fixed terminal, makes contact with the fixed terminal, and overlaps with the outer conductor fixation portion at a tip end of the plate spring when viewed from below
Data Source
AI summary
A coaxial connector including a connector main body is formed of an upper housing and a lower housing. An outer conductor includes a circular cylinder portion surrounding the periphery of a hole of the connector main body and configured to be inserted into an outer conductor of a mating coaxial connector. A main body portion is provided on the connector main body, and a fixation portion that is extended from the main body portion so as to sandwich the connector main body along with the main body portion. A fixed terminal is anchored to the connector main body. A movable terminal includes a fixation portion anchored to the connector main body, and a plate spring that extends from the fixation portion toward the fixed terminal and overlaps with the fixation portion at tip ends of the plate spring.