Electrical Connection Cover Box With Universal Half-Shell Assembly
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Solution Overview
Problem
Existing electrical connection covers are difficult to assemble and often provide insufficient protection to meet IP20 requirements, requiring different sizes and shapes for various connection sizes, which increases costs.
Innovation Solution
A cover box comprising two half-shells with recesses for a screw and nut, and latching means for easy assembly, allowing the same cover box to be used for different electrical connection sizes by accommodating a screw and nut, which rarely vary in size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional covers are made of at least two different plastic parts assembled together, then the electrical connection can be covered, but the assembly becomes difficult and protection is insufficient to meet IP20 requirements
Solution Approach 1:
The cover box is divided into two identical half-shells that can be easily assembled and disassembled. Each half-shell is a simple molded piece with latching means, allowing straightforward assembly while maintaining IP20 protection when joined together
Solution Approach 2:
The half-shells are designed to be universal components that can accommodate different electrical connection sizes through the recess mechanism. The same half-shell design works for various connection dimensions, reducing the need for multiple specialized cover designs
2Reliability
If different sizes and shapes of cover boxes are designed for different connection sizes, then appropriate coverage is achieved, but manufacturing costs increase significantly
Solution Approach 1:
The half-shells are designed as universal components with recesses that can accommodate different electrical connection sizes. The same half-shell design can be used across multiple connection sizes, eliminating the need to manufacture multiple specialized cover box sizes and significantly reducing manufacturing costs
Solution Approach 2:
The recess dimensions and positioning can be adjusted within the universal half-shell design to accommodate different connection sizes. This allows a single half-shell design to adapt to various connection parameters without requiring completely different cover designs
3Reliability
If the cover box is designed to meet IP20 requirements by preventing intrusion of 12.5 mm wide objects, then safety is improved, but the design becomes more complex
Solution Approach 1:
The cover box is segmented into two half-shells with latching means, creating a secure enclosure that meets IP20 requirements. The segmentation allows for simple molded construction of each half-shell while achieving the required protection level when assembled together
Solution Approach 2:
The latching means are designed to automatically secure the half-shells together when assembled, creating the IP20 protected enclosure without requiring additional complex fastening mechanisms or assembly steps
Data Source
AI summary
A cover box including two half-shells configured to accommodate at least part of an electrical connection, each half-shell including: a recess, opening into the interior volume; and latching means. The half-shells are able to be assembled together by cooperation of latching means of a first half-shell with the latching means of a second half-shell, the recess of the first half-shell facing the recess of the second half-shell when the half-shells are assembled together. The electrical connection includes a screw and a nut cooperating with the screw, the nut being able to be engaged in the recess of the first half-shell, a head of the screw being able to be engaged in the recess of the second half-shell.