PCB-Mount Cable Termination Box Without Extra Wiring
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Solution Overview
Problem
Existing cable junction boxes are not suitable for direct connection to printed circuit boards due to material, dimension, and arrangement limitations, making them unsuitable for compact electrical device designs.
Innovation Solution
A cable junction box with a housing and contact elements featuring contact pins that can be soldered or plugged directly to a printed circuit board, eliminating the need for additional wiring and allowing for compact installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional cable junction boxes with flat plugs are used, then electrical connection is achieved, but direct connection to printed circuit board is not possible due to material, dimension, and arrangement limitations
Solution Approach 1:
The contact element is transformed from a conventional flat plug design to a contact pin configuration with circular or square cross-section, changing the geometric parameters to enable direct soldering or plug-in connection to printed circuit boards. This parameter change allows the same cable junction box housing to be adapted for PCB mounting without requiring additional wiring or conversion components.
2Volume of moving object
If additional wiring and flat plug connections are used, then electrical connection is achieved, but device size increases and assembly is complicated
Solution Approach 1:
The cable junction box is merged directly with the printed circuit board through the contact pin integration. The contact pin serves dual functions: providing electrical connection and enabling mechanical mounting on the PCB. This merging eliminates the need for separate flat plug connectors and additional wiring, thereby reducing overall device volume and simplifying assembly operations.
Solution Approach 2:
The flat plug connector and associated wiring are extracted from the connection assembly. By removing these intermediate components and replacing them with direct contact pins that solder or plug into the PCB, the assembly becomes more compact and easier to install while maintaining electrical connectivity.
3Ease of manufacture
If conventional flat plugs are used for cable connection, then electrical connection is achieved, but direct soldering to printed circuit board is not possible due to material and dimension limitations
Solution Approach 1:
The contact element material and geometry are changed from flat plug configuration to contact pin configuration with suitable cross-section (circular or square). This parameter change makes the contact pin compatible with standard PCB soldering processes and plug-in technologies, enabling direct manufacturing integration without complex adaptation measures.
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to a cable connection box (1) for electrically connecting wires of a connecting cable to a circuit board (8) of an electrical device, in particular an electrical household appliance. The cable connection box (1) comprises a housing (2) with a housing base (3) and a housing cover (4), which can be selectively closed to enclose a connection space (A) and selectively opened to expose the connection space (A) for connecting the wires of the connecting cable, as well as a cable bushing (5) for feeding the connecting cable into the connection space (A).The cable connection box (1) further comprises at least one contact element (6) with a contact section (60) for the direct electrical connection of at least one of the wires (L) of the connection cable in the connection space (A), as well as with at least one contact pin (61) which is electrically connected to the contact section (60) and protrudes from the housing (2) in such a way as to be directly connected to a printed circuit board (8) by means of a soldered connection and/or plug connection.