Plug Connector Asymmetric Stepped Housing Prevents Incorrect Plugging
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Solution Overview
Problem
Existing push-pull locking mechanism plug connectors do not effectively prevent incorrect plugging, as latching arms can grip unsuitable cylindrical device sockets with inner threads, providing a false secure connection.
Innovation Solution
A plug connector design featuring a cylindrical housing body with distinct diameter regions, a locking mechanism fixed to the base region, and a plug positioning means with circumferential grooves and sealing rings to prevent incorrect plugging and ensure sealing against media, along with a threadless insertion region in the mounting flange to prevent incorrect connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a push-pull locking mechanism is used, then the plug connector can be easily plugged and unplugged, but the mechanism allows incorrect plugging into unsuitable sockets with inner threads
Solution Approach 1:
The plug connector housing body features an asymmetric stepped design with a first region having a larger diameter and a second region having a smaller diameter. This asymmetric geometry prevents incorrect plugging into unsuitable sockets because the stepped configuration only matches sockets with corresponding asymmetric geometry, while maintaining easy operation through the push-pull locking mechanism that engages with the asymmetric features.
2Device complexity
If the plug connector is designed with a simplified push-pull locking mechanism, then the structure is simpler, but the mechanism cannot prevent plugging into sockets with screw connections
Solution Approach 1:
The simplified push-pull locking mechanism is combined with asymmetric stepped regions on the housing body. The first region with larger diameter and the second region with smaller diameter create an asymmetric profile that prevents engagement with unsuitable sockets such as those with screw connections, while the locking mechanism itself remains structurally simple and easy to operate.
3Object-affected harmful factors
If circumferential grooves with sealing rings are added to the plug positioning means, then sealing against media is improved, but the device complexity increases
Solution Approach 1:
Circumferential grooves with sealing rings are strategically positioned at specific locations on the plug positioning means where sealing is most critical. This local quality approach provides effective protection against dust and water penetration at key interfaces, while avoiding the complexity of adding sealing elements throughout the entire connector structure.
Data Source
AI summary
A plug connector has a cylindrical housing body having at least one step, which forms two different regions each having different housing diameters, wherein the region having the smaller diameter is designed as a plug-in region and the region having the larger diameter is designed as a socket region, wherein the plug connector has a lock, which is captively connected to the housing body, wherein the plug connector has an actuator, which is operatively connected to the lock, wherein the plug connector has a plugging positioner, which at least partially surrounds the plug-in region. An attachment flange fits the plug connector and has an insertion region designed as a hollow cylinder, wherein the inner region of the hollow cylinder has at least one step, which forms two different regions each having different inside diameters, wherein the inner region of the insertion region is unthreaded.