Snap-Fit Circuit Breaker Mounting for Fast, Correct Panel Installation
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Solution Overview
Problem
Conventional circuit breaker and load center systems require substantial time for wiring and rely on electrical connections for mechanical retention, which is inefficient and prone to incorrect installation.
Innovation Solution
A circuit breaker and load center system featuring a snap-fit mechanism with a pivot joint that allows for mechanical retention separate from electrical connections, providing tactile and audible feedback upon engagement, and a modular design for flexible panel configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wired and screwed connections are used to couple circuit breakers to the load center, then electrical connections are established, but installation time becomes substantial and mechanical retention depends on electrical connections
Solution Approach 1:
The patent separates mechanical retention from electrical connection by introducing distinct snap-fit mechanical coupling features (protrusions and recesses) that are independent of the electrical wiring process. This segmentation allows mechanical attachment to occur quickly without relying on time-consuming electrical connections
Solution Approach 2:
The circuit breaker is pre-wired with electrical connections before installation into the load center. This preliminary action allows the mechanical snap-fit coupling and electrical connections to occur simultaneously or in optimized sequence, reducing overall installation time by eliminating the need to wire after mechanical attachment
2Ease of operation
If electrical connections are used for mechanical retention, then the circuit breaker is retained to the load center, but the system becomes prone to incorrect installation and less efficient
Solution Approach 1:
The snap-fit mechanical coupling provides tactile and audible feedback (click sound) when the circuit breaker is properly engaged with the load center. This feedback mechanism gives installers immediate confirmation of correct installation, eliminating uncertainty and reducing incorrect installations
Solution Approach 2:
The patent replaces the conventional screw-based mechanical retention system with a snap-fit mechanical coupling system. This substitution eliminates the need for tools and complex alignment procedures, making installation simpler while providing positive mechanical engagement that is more reliable than relying solely on electrical connections for retention
3Adaptability or versatility
If a non-modular design is used, then the load center can accommodate various configurations, but the system lacks flexibility for different panel configurations
Solution Approach 1:
The patent employs standardized snap-fit coupling features (protrusions and recesses) that are universal across different circuit breaker types and load center configurations. This universality allows the same mechanical coupling mechanism to work across various panel sizes and configurations, providing flexibility without requiring complex custom designs for each application
Data Source
AI summary
A circuit breaker and panel system includes a panel including a base pan having a plurality of base pan electrical connections. A circuit breaker including a housing having a plurality of circuit breaker electrical connections arranged to contact the base pan electrical connections when the circuit breaker is coupled to the base pan. The circuit breaker is rotatably coupleable with the base pan via a pivot joint for engaging the plurality of base pan electrical connections with the plurality of circuit breaker electrical connections per a predetermined electrical connection coupling sequence. One of the housing and the base pan includes a protrusion and the other of the housing and the base pan includes a corresponding recess which, when engaged with each other, retain the housing to the base pan to prevent reverse rotational movement of the breaker with respect to the base pan.