Electric Protective Cover for EV Receptacle Circuit Board
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Solution Overview
Problem
Existing electric vehicle charging receptacles lack effective protection for circuit boards and components from external damage and electromagnetic interference, which can compromise safety and performance during charging.
Innovation Solution
An electric protective cover with a cover body, mounting portion, and isolating wall is designed to easily assemble onto a receptacle housing, providing protection for circuit boards and preventing electromagnetic interference by isolating connecting terminals from the circuit board, while also guiding and retaining wires to prevent messy layouts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a circuit board is installed in the receptacle without additional protection, then the structure remains simple, but the circuit board is vulnerable to external damage and electromagnetic interference
Solution Approach 1:
The protective cover is divided into a cover body and a mounting portion, allowing separate assembly functions. The cover body protects the circuit board while the mounting portion enables secure attachment to the receptacle housing, resolving the contradiction by segmenting the protective structure into functional parts.
Solution Approach 2:
The protective cover is nested within the receptacle housing structure, with the cover body forming an accommodating hole that receives the circuit board. This nesting approach provides protection while integrating smoothly into the existing receptacle structure, minimizing added complexity.
2Reliability
If connecting terminals are placed close to the circuit board for compact design, then space is saved, but electromagnetic interference affects the circuit board
Solution Approach 1:
The isolating wall is strategically positioned only where needed - between the connecting terminals and the circuit board - providing electromagnetic shielding precisely at the interference source. This localized approach achieves isolation without requiring the entire structure to be enlarged.
Solution Approach 2:
The isolating wall extends in the axial direction from the cover body, creating a three-dimensional barrier that blocks electromagnetic interference paths. This vertical dimensionality provides effective isolation while maintaining a compact horizontal footprint.
3Reliability
If wires are routed without guidance structures, then the assembly process is simpler, but wire layout becomes messy and prone to damage
Solution Approach 1:
The wire retaining part with lead through-holes and guide grooves is pre-formed as an integral part of the protective cover. This preliminary structuring of wire paths simplifies the assembly process by providing built-in guidance, eliminating the need for separate wire management components.
Data Source
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AI summary
The present disclosure discloses an electric protective cover for a receptacle and a receptacle. The electric protective cover comprises a cover body and a mounting portion. The cover body extends along a radial direction of the receptacle and is configured for covering a circuit board. An accommodating hole enclosed by an accommodating hole wall is disposed on the cover body to accommodate a connecting terminal. The mounting portion is disposed on the cover body to be mounted onto a receptacle housing. The electric protective cover according to the present disclosure may be readily and quickly assembled on the housing by means of the mounting portion and provide protection for the circuit board arranged on the housing and the elements on the circuit board by means of the cover body.