Electrical Signal Switch Connector With Shielding Case
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Solution Overview
Problem
Existing high-frequency electrical signal switch connectors are prone to failure due to intrusion of extraneous matters, such as tin solder, plastic dust, or metal scraps, which can prevent the elastic terminal from disconnecting from the fixing terminal, especially through the inlet hole, leading to test distortion and connector failure.
Innovation Solution
The electrical signal switch connector structure incorporates an insulating case with a convex buckle and notch mechanism, an elastic terminal with a long cantilever arm and cutting gap, and a fixing terminal with a short cantilever arm, along with a shielding case, to prevent extraneous matter intrusion and maintain electrical connection integrity by creating gaps and reducing contact area, while allowing probe access through an inlet hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an inlet hole is provided for probe access, then testability is improved, but extraneous matters can intrude into the connector causing failure
Solution Approach 1:
The elastic terminal employs a flexible cantilever structure that can be depressed by a probe through the inlet hole to break electrical connection. The flexibility of the elastic arm allows it to return to its original position after probe removal, maintaining connection integrity while enabling test access.
Solution Approach 2:
The elastic terminal acts as an intermediary between the inlet hole and the electrical connection. It allows the probe to access the connection point through the inlet hole while the elastic structure itself prevents direct intrusion of extraneous matters into the connection interface.
2Reliability
If the elastic terminal and fixing terminal maintain stable contact, then electrical connection reliability is improved, but extraneous matters can prevent disconnection causing test distortion
Solution Approach 1:
The connector structure differentiates between regions requiring stable contact (the electrical contact interface between elastic and fixing terminals) and regions requiring accessibility (the inlet hole area). The elastic terminal's cantilever structure provides local flexibility at the contact point while maintaining overall structural integrity.
Solution Approach 2:
The elastic terminal transitions from a static connection state to a dynamic state when a probe applies force through the inlet hole. The elastic arm deforms to break the electrical connection during testing, then returns to its original position to restore the connection, providing dynamic control over the electrical state.
3Volume of moving object
If the connector volume is minimized for high-frequency signals, then device integration is improved, but protection against extraneous matter intrusion is reduced
Solution Approach 1:
The elastic terminal is nested within the insulating case, with the cantilever arm extending into the connection space. The fixing terminal is positioned to receive the elastic terminal's contact point. This nested arrangement minimizes the overall connector volume while maintaining the necessary functional spaces for connection and probe access.
Solution Approach 2:
The inlet hole is positioned on the lateral surface of the insulating case, utilizing the three-dimensional space efficiently. The elastic terminal's cantilever extends in a direction perpendicular to the main connection axis, allowing probe access from the side rather than requiring a larger top-opening structure.
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 design effectively prevents ambient extraneous matters from entering the connector, ensuring reliable high-frequency signal transmission and maintaining electrical connection status, even under external forces, by utilizing the elastic deformation and pre-load mechanisms to maintain contact and reduce displacement risks.
Implementation Method 1
The elastic arm B2 of the elastic terminal B is an elastic metal cantilever... An inlet hole A3 is set up on the insulating case A... push down the elastic arm B2 of the elastic terminal B, and then break the normal electrical connection status
Implementation Method 2
The elastic arm B2 of the elastic terminal B is normally pressed against the lower edge of the fixing arm C2 of the fixing terminal C, such that the elastic terminal B can be normally electrically connected with the fixing terminal C
Data Source
AI summary
An electrical signal switch connector structure is provided, mainly including an insulating case, an elastic terminal, a fixing terminal, and a shielding case. The insulating case respectively accommodates the elastic terminal and the fixing terminal. The elastic terminal has an elastic arm, and the elastic arm of the elastic terminal has a cutting gap. The fixing terminal has a fixing arm, and the elastic arm of the elastic terminal is elastically pressed against the fixing arm of the fixing terminal. An inlet hole of the insulating case is used for passing a terminal of a butting connector therein, and the shielding case wraps the insulating case profile such that an ambient extraneous matter is not attached to the elastic arm of the elastic terminal.