Spring-Loaded PCB Plug Contact for Vibration-Resistant Connections
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Solution Overview
Problem
Existing electrical connectors in automotive applications experience wear and impaired contact due to vibrations, friction, and relative movements between contact devices, leading to reduced service life.
Innovation Solution
An electrical circuit board-plug contact device with a spring portion featuring curved elements that allow elastic deformation to compensate for vibrations, maintaining contact and reducing friction, and a simplified structure that minimizes installation space and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid fixed structure is used to connect the circuit board and plug contact device, then mechanical stability is improved, but vibration-induced wear and contact impairment increase
Solution Approach 1:
The patent applies the dynamics principle by replacing the rigid fixed structure with a spring portion that enables dynamic adaptation. The spring portion allows the plug contact device to move elastically in response to vibrations, maintaining stable electrical contact despite external disturbances. This dynamic structure absorbs vibration energy and prevents wear, resolving the contradiction between mechanical stability and contact reliability.
Solution Approach 2:
The patent employs parameter changes by modifying the spacing between the circuit board and plug contact device through the spring portion's elastic deformation. The spring portion changes the distance parameter dynamically, allowing the system to adapt to vibration-induced displacements while maintaining reliable electrical contact, thus resolving the contradiction between fixed structure stability and contact reliability.
2Device complexity
If the spacing between contact portions is fixed, then structural simplicity is improved, but compensation for vibration movements is impaired
Solution Approach 1:
The spring portion introduces dynamic capability into the structure by enabling elastic deformation along the longitudinal axis. This allows the spacing between contact portions to vary in response to vibrations while maintaining overall structural simplicity. The spring portion acts as a vibration compensation mechanism without significantly complicating the device structure.
3Volume of moving object
If the plug contact device is made compact, then installation space is reduced, but elastic deformation capability for vibration compensation is limited
Solution Approach 1:
The patent applies the nesting principle by integrating the spring portion within the compact plug contact device structure. The curved element of the spring portion is positioned between the first and second contact portions, utilizing the internal space efficiently. This allows the device to maintain a compact form factor while incorporating the necessary elastic deformation capability for vibration compensation.
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 device effectively compensates for vibrations, preventing relative movement and friction, thereby improving contact reliability and extending the service life of the connectors.
Implementation Method 1
the spring portion is configured to bring about an elastic variation of the spacing between the first and second electrical contact portions in the longitudinal direction
Data Source
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AI summary
The invention relates to an electrical circuit board-plug contact device (100) for an electrical circuit board (161) of an electrical contact system, with a first electrical contact portion (101) for the mechanical fixing of the plug contact device (100) to a circuit board (161) and for the electrical contact of the plug contact device (100) to the circuit board (161), wherein the fixing is carried out by a press-fit fixing; a second electrical contact portion (103) in order to bring about an electrical plug contact of the plug contact device (100) with an electrical mating contact element (163), wherein the second electrical contact portion (103) comprises a fork structure with two fork elements (105), and wherein the fork elements (105) are configured to bring about a mechanical clamped fixing of the electrical mating contact element (163) on the plug contact device (100); and a spring portion (107), wherein the spring portion is arranged between the first and second electrical contact portions (101, 103) in a longitudinal direction (L) of the plug contact device (100), wherein an electrical connection between the first and second contact portions (101, 103) is brought about via the spring portion (107), and wherein the spring portion (107) is configured to bring about an elastic variation of the spacing between the first and second electrical contact portions (101, 103) in the longitudinal direction (L).