Lever Connector Vibration Resistance Lap Part Design
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Solution Overview
Problem
Lever connectors in existing technologies lack sufficient tolerance to vibrations and external forces, which can cause misalignment and functional failure, particularly in applications like vehicles where such forces are common.
Innovation Solution
A lever connector design featuring a first housing, a second housing with a housing-side lock part, and a lever with a lever-side lock part that can be elastically deformed to separate from the second housing's surface, along with a pressing part to release the lock and a lap part to prevent deformation, combined with a projection to secure the lever in place, ensuring stability during fitting and exposure to external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the lever is mounted in the second housing without additional restraining structures, then the device complexity is reduced, but the lever becomes susceptible to deformation and rattling under vibration and external forces
Solution Approach 1:
The lap part is pre-configured in the second housing to contact the edge part of the lever when the lever reaches the fitting completion position. This preliminary positioning structure prevents the lever from moving in the first direction before external forces act on it, thereby preventing deformation and rattling without requiring complex additional restraining mechanisms.
2Reliability
If the lever-side lock part is made rigid to maintain stable locking, then the locking reliability is improved, but the lever cannot be properly released by the pressing part during fitting
Solution Approach 1:
The lever-side lock part is designed with elastic deformability, allowing it to change its physical state temporarily under the action of the pressing part during fitting. When the pressing part presses the lever-side lock part in the first direction, the elastic material deforms to release the lock. After the pressing force is removed, the elastic property restores the lock to its original stable locking state, thus achieving both reliable locking and easy release.
3Ease of operation
If the lever is allowed to move freely during fitting, then the ease of operation is improved, but the lever becomes misaligned and deformed under vibration and external forces
Solution Approach 1:
The lever is designed to be movable during the fitting process to allow easy operation, but the lap part is configured to contact the edge part of the lever only when the lever is in the fitting completion position. This dynamic arrangement allows the lever to move freely during fitting while providing stability against vibration and external forces once fitting is complete, preventing misalignment and deformation.
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
The design enhances the lever connector's ability to maintain functionality and prevent misalignment or deformation under vibrations and external forces, ensuring reliable operation and preventing abrasion or noise caused by rattling.
Implementation Method 1
a lever-side lock part configured to be elastically deformed in a first direction to be separated from a surface of the second housing
Implementation Method 2
a pressing part configured to move together with the first housing in a fitting direction at a time of fitting, and configured to release a lock between the lever-side lock part and the housing-side lock part by pressing the lever-side lock part in the first direction
Implementation Method 3
a lap part configured to be brought into close contact with an edge part of the lever when the lever is in the fitting completion position, so as to prevent that the edge part is deformed in the first direction
Data Source
AI summary
A lever connector includes a lever which includes a lever-side lock part configured to be elastically deformed in a first direction to be separated from a surface of a second housing and configured to be locked to a housing-side lock part of the second housing when the lever is in a fitting start position. A first housing includes a pressing part configured to move together with the first housing in a fitting direction at a time of fitting, and configured to release a lock between the lever-side lock part and the housing-side lock part by pressing the lever-side lock part in the first direction. The second housing includes a lap part configured to be brought into close contact with an edge part of the lever when the lever is in a fitting completion position, so as to prevent that the edge part is deformed in the first direction.