Separable Connector Push-Then-Pull Shear Mechanism
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Solution Overview
Problem
Conventional separable connector systems face difficulties in safely and easily separating connector assemblies due to interface adhesion, particularly when multiple connectors are involved, leading to deformation and ergonomic issues during disconnection operations.
Innovation Solution
A push-then-pull operation mechanism is implemented, where the connectors are pushed together to shear interface adhesion, making it easier to pull them apart, accompanied by clearance regions and a latching mechanism to facilitate safe disconnection, and an indicator for visual confirmation of the pushed-in position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If connectors are separated by conventional methods (pulling apart), then electrical disconnection is achieved, but interface adhesion causes difficulty in separation and potential deformation
Solution Approach 1:
The patent applies preliminary action by pushing the connectors together before pulling them apart. This push action pre-shears the interface adhesion between connectors, reducing the force and effort required for subsequent separation. The push-then-pull sequence prepares the interface in advance to facilitate easier disconnection.
Solution Approach 2:
The patent inverts the conventional separation approach by first pushing connectors together (opposite of pulling apart) before separating them. This reverse action of pushing first creates the necessary conditions for easier subsequent separation by pre-shearing the adhesive interface.
2Productivity
If multiple connector pairs are separated simultaneously, then efficiency is improved, but interface adhesion makes separation increasingly difficult
Solution Approach 1:
The push-then-pull method applies preliminary action to each connector pair by pushing them together first, which pre-shears the interface adhesion. This preparation step makes subsequent simultaneous separation of multiple connector pairs easier and more efficient, addressing the scaling problem of interface adhesion.
3Ease of operation
If twisting operation is used to break interface adhesion, then connector separation becomes easier, but connector assemblies may be deformed
Solution Approach 1:
The patent uses preliminary pushing action to pre-shear the interface adhesion before separation, replacing the twisting operation. This push action achieves adhesion breakdown without the harmful side effects of twisting, such as deforming connector assemblies or loosening current-carrying joints.
Solution Approach 2:
The patent converts the harmful effect of interface adhesion (which resists separation) into a beneficial effect by using the push action to control and manage the adhesion breakdown. The push-then-pull sequence transforms the problematic strong adhesion into a controlled separation process that protects connector integrity.
Data Source
AI summary
Separable connector assemblies include one or more pairs of connectors that engage and disengage one another in electrical connection and disconnection operations, respectively. An operator can disengage the connectors by pushing the connectors together and then pulling the connectors apart. Pushing the connectors together shears interface adhesion between the connectors, making it easier for the operator to pull the connectors apart. An indicator integral or coupled to one of the connectors can indicate whether the first and second connectors are in the pushed-in-position. A window in the other connector includes an opening, channel, and/or translucent or semi-translucent material through which the indicator may be seen. The window and/or one or more vents in a tubular member of one of the connectors can include a channel that provides an air path for ingress of air between the connectors, to thereby remove or reduce a vacuum or partial vacuum between the connectors.