Electrical Terminal Assembly With Interference Part
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Solution Overview
Problem
The installation and fixation of small-sized electrical terminal pins in electrical connectors are challenging due to their needle-like shape and difficulty in being directly inserted into soldering holes, leading to complex wiring requirements.
Innovation Solution
An electrical terminal assembly is designed with a mounting block that combines multiple terminals, featuring a protruding interference part perpendicular to the terminal body, which is embedded in a guiding groove, facilitating easy installation and fixation within an electrical connector's structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If small-sized electrical terminal pins are used to increase the number of terminals in one base, then the signal transmission capability is improved, but the installation and fixation difficulty increases
Solution Approach 1:
Multiple electrical terminal pins are combined into a single integrated assembly with a mounting block that houses all terminals. The mounting block acts as a unified structure that simplifies handling and installation, allowing multiple small terminals to be installed simultaneously as one unit rather than individually.
Solution Approach 2:
The mounting block serves as an intermediary structure between the small electrical terminal pins and the circuit board. It provides a larger, easier-to-handle interface for installation while containing the small terminals, and the interference part on the mounting block engages with the guiding groove to ensure proper positioning during installation.
2Ease of operation
If electrical terminal pins are configured in needle-like shape for direct insertion, then the installation process is simplified, but the fixation reliability deteriorates
Solution Approach 1:
The mounting block features an asymmetric interference part with a specific geometric shape that does not perfectly match the guiding groove, creating an interference fit. This asymmetric design provides mechanical engagement that ensures reliable fixation while maintaining ease of installation through the guiding groove alignment.
Solution Approach 2:
The mounting block has different structural features at different locations: a smooth guiding groove engagement area for easy insertion, and an interference part with specific geometric characteristics for reliable fixation. The local quality varies to achieve both ease of installation and fixation reliability at different stages of the installation process.
3Adaptability or versatility
If multiple electrical terminals are installed individually, then the flexibility in wiring is improved, but the installation time and complexity increase
Solution Approach 1:
Multiple electrical terminals are merged into a single assembly with a common mounting block, allowing simultaneous installation of all terminals in one operation. This reduces installation time significantly compared to individual installation while maintaining the electrical connectivity and wiring flexibility of having multiple separate terminals.
Solution Approach 2:
The electrical terminal assembly is segmented into a mounting block and multiple terminal pins, where the mounting block can be installed as one unit and the terminals are pre-positioned within it. This segmentation allows for efficient installation while maintaining the functional independence of each terminal for flexible wiring configurations.
Data Source
AI summary
An electrical terminal assembly includes a mounting block and one or more electrical terminals. The electrical terminal includes a terminal body and a first exposed section. The terminal body is embedded in the mounting block. The first exposed section is extended from the terminal body and protruding from the mounting block. The first exposed section further includes an interference part protruding from one side edge of the first exposed section. A protruding direction of the interference part is substantially perpendicular to an extension direction of the first exposed section. An electrical connector includes the electrical terminal assembly and a base accommodating the electrical terminal assembly.