PCB Pin-Through-Hole Connection Without Soldering
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Solution Overview
Problem
Existing methods for creating electrically conductive contact connections between circuit boards are labor-intensive and require significant material effort, such as soldering processes.
Innovation Solution
A contact connection is formed by using a connection pin on the first circuit board, which is plugged into a socket opening on the second circuit board, and then shaped through a forming process, such as bending or riveting, to create a secure and conductive connection without additional soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soldering processes are used to create electrically conductive contact connections between circuit boards, then reliable electrical connection is achieved, but manufacturing complexity and labor intensity increase
Solution Approach 1:
The patent replaces the thermal soldering process with a purely mechanical deformation process. The connecting element is mechanically deformed to create both the electrical connection and the positive mechanical connection simultaneously, eliminating the need for soldering equipment and processes while maintaining reliable electrical contact.
Solution Approach 2:
The patent merges the electrical connection function and the mechanical connection function into a single integrated connecting element. The deformation of this element simultaneously establishes both the electrical contact between circuit boards and the mechanical positive connection, simplifying the overall manufacturing process.
2Reliability
If traditional connector strips and sockets are used to connect printed circuit boards, then electrical connection is established, but material expenditure increases
Solution Approach 1:
The patent extracts and eliminates the separate socket component from the traditional connector system. The connecting element directly engages with the circuit board without requiring a separate socket, thereby reducing material consumption while maintaining the electrical connection function.
Solution Approach 2:
The connecting element serves multiple functions simultaneously: it provides electrical connection, mechanical support, and positive mechanical engagement through its deformation. This multi-functionality eliminates the need for separate connector strips and sockets, reducing overall material expenditure.
3Reliability
If connecting elements are passed through openings in multiple printed circuit boards simultaneously and deformed, then electrical connection is achieved, but manufacturing effort increases
Solution Approach 1:
The patent applies preliminary action by pre-forming the connecting element with a specific geometry that facilitates easy insertion and deformation. The element is designed in advance to be pushed through openings and deformed into its final shape, making the manufacturing process simpler and more automated.
Solution Approach 2:
The patent utilizes parameter changes in the connecting element's physical state during the deformation process. The element transitions from a flexible insertion state to a rigid locked state through controlled deformation, enabling simple manufacturing operations to achieve reliable connections.
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 method reduces material effort and manufacturing complexity, allowing for a quick and efficient creation of electrically conductive contact connections between circuit boards.
Implementation Method 1
the connecting element is deformed in a section projecting through the opening of the second printed circuit board beyond the second printed circuit board by a forming process, in particular a bending process or a riveting process
Implementation Method 2
the connection pin of the first printed circuit board is formed at least partially from an electrically conductive material
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a contact connection (10) between a first and a second printed circuit board (12, 14), characterized in that the first printed circuit board (12) comprises a connecting pin (18) in the area of the contact connection (10) and the second printed circuit board (14) comprises a through-hole (16) in the area of the contact connection (10), wherein the connecting pin (18) of the first printed circuit board (12) is inserted through the through-hole (16) of the second printed circuit board (14), wherein the connecting pin (18) is formed in a section (24) projecting through the through-hole (16) of the second printed circuit board (14) beyond the second printed circuit board (14) by a forming process, in particular a bending process or a riveting process, such that a positive-locking connection is formed between the first and the second printed circuit board (12, 14). Figure 1