Vibration-Resistant Short-Circuiting Bridge for Electric Plug Connectors
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Solution Overview
Problem
Existing electric plug connectors with short-circuiting bridges fail to reliably detect correct plugging under strong vibrations, leading to incorrect signaling and potential wear or fracture of contacts, which affects the detection of a correctly plugged state.
Innovation Solution
The short-circuiting bridge is accommodated with play in the receptacle to be movable about the plugging position, allowing it to be electrically connected and mechanically decoupled, reducing relative movement and wear, and is designed to move transversely or tiltable to ensure secure contact and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the short-circuiting bridge is securely anchored in the plug element, then the structural stability is improved, but the contact surfaces are subjected to wear and fracture under vibration loading
Solution Approach 1:
The short-circuiting bridge is designed to be movable within the receptacle rather than fixed, allowing it to dynamically adapt to vibrations and relative movements while maintaining reliable electrical contact. The bridge can move freely in the receptacle to compensate for external vibrations, preventing wear and fracture of contact surfaces.
2Reliability
If the short-circuiting bridge is made movable to compensate for vibrations, then the contact reliability is improved, but the relative movement between contact surfaces increases
Solution Approach 1:
The short-circuiting bridge is designed to be movable within the receptacle rather than fixed, allowing it to dynamically adapt to vibrations and relative movements while maintaining reliable electrical contact. The bridge can move freely in the receptacle to compensate for external vibrations, preventing wear and fracture of contact surfaces.
3Duration of action of stationary object
If the short-circuiting bridge is movable in the receptacle, then the wear prevention is improved, but the assembly complexity increases
Solution Approach 1:
The short-circuiting bridge is designed to be movable within the receptacle rather than fixed, allowing it to dynamically adapt to vibrations and relative movements while maintaining reliable electrical contact. The bridge can move freely in the receptacle to compensate for external vibrations, preventing wear and fracture of contact surfaces.
Data Source
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AI summary
The invention relates to an electric plug connector (5) for connecting to a complementary mating plug connector (7) in a plugging direction (S), having a plug housing (25) which has a receptacle (75) in which a short-circuiting bridge (69), which is held fixedly in its plugging position (70) and has two short-circuiting contacts (19) which are accessible from outside the plug connector (5), counter to the plugging direction (S), is accommodated. In addition, the invention relates to an electric plug connection (1) having such an electric plug connector (5) and an electric mating plug connector (7). Electric plug connectors (5) according to the prior art with fixed short-circuiting bridges (69) have the disadvantage that vibrations, i.e. relative movements between the plug connector (5) and the mating plug connector (7), are converted into a relative movement of the short-circuiting bridge (69) with respect to the short-circuiting bridge (65). This can give rise to a large amount of abrasion or even cause the short-circuiting bridge (69) to fracture. The electric plug connector (5) according to the invention solves this problem by virtue of the fact that the short-circuiting bridge (69) is accommodated with play in the receptacle (75) so as to be movable about the plugging position (70). In the case of the electric plug connection (1) according to the invention, in a plugging position (67) the short-circuiting contacts (19) of the short-circuiting bridge (69) are connected electrically and in a movement-transmitting fashion to mating short-circuiting contacts (20) of the electric mating plug connector (7), but are mechanically decoupled from a movement of the electric plug connector (5) owing to the short-circuiting bridge (69) being accommodated in the receptacle (75) in such a way that it is movable about the plugging position (70).