Power Connector Double Locking to Prevent Pin Tilting
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Solution Overview
Problem
Conventional electric power connectors for hot melt adhesive machines, particularly those with rotating or deforming lever elements, are prone to accidental disconnection and breakage due to their design, leading to unreliable closure and potential damage from excessive force required for engagement or disengagement.
Innovation Solution
A connector design featuring a male connector element with protruding pins and a protective piece with a tubular structure, including inclined areas for wedged fitting and an anchoring device with lugs and holes, ensures secure axial movement and immobilization, preventing tilting and separation, and facilitating reliable closure and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If chamferings are added to pins to stiffen them for securing closure, then the connector blocking is improved, but the pins become more fragile and break more easily
Solution Approach 1:
The connector blocking system is segmented into multiple independent blocking elements (first blocking element and second blocking element) that work together. Each element provides partial blocking function, and their combined action achieves reliable connector closure without requiring excessive stiffening of individual pins, thus avoiding pin breakage.
2Stability of the object's composition
If pins are made stiffer with chamferings to secure closure, then blocking stability improves, but larger force is required for opening and engagement
Solution Approach 1:
The blocking elements are designed to be movable rather than fixed, allowing them to dynamically adjust during the engagement and disengagement processes. The first blocking element can move to facilitate easier engagement, and the second blocking element provides final secure locking, reducing the force required compared to rigid pinned systems.
3Ease of operation
If rotating lever elements are used for blocking, then connector closure is achieved, but the lever elements are prone to accidental breaking during blocking process
Solution Approach 1:
The blocking elements are designed as simple, robust components that can withstand the blocking process without being prone to breakage. Rather than using fragile rotating lever elements that risk breaking, the invention employs durable blocking elements that maintain reliability throughout their service life.
4Ease of operation
If deforming lever elements are used for blocking, then connector closure is achieved, but they are particularly sensitive to breakage due to their design
Solution Approach 1:
The blocking function is divided into two separate blocking elements rather than relying on a single deforming lever element. This segmentation allows each element to be optimized for its specific function, avoiding the need for deforming levers that are inherently fragile due to their design requirements.
Data Source
AI summary
A connector for supplying electric power to a machine or other devices that require electrical energy, the connector facilitating and securing the connection, thereby preventing possible accidental disconnection. The connector comprises a male connector element, a protective piece, and a blocking device that, in a closed position of the connector, provides double blocking on a single element forming part of the male connector element, to prevent the connector of the invention from disconnecting. The blocking device is configured to block pins from tilting in the closed position of the connector, wherein the blocking device comprises rear projections solidly connected to the protective piece, and end portions solidly connected to the pins.