Charging Terminal Housing With Isolated HV and LV Cavities
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Solution Overview
Problem
Existing charging components for new energy vehicles lack sufficient security protection, as all terminals, including high-voltage and low-voltage terminals, are sealed in the same protection space, making the entire component vulnerable to failure if any terminal leaks.
Innovation Solution
The charging component is designed with a housing that divides the packaging area into two non-communicating accommodation cavities, allowing for independent protection of different charging terminals. The power terminal, as a high-voltage terminal, is housed in one cavity, while communication, charging connection confirmation, auxiliary power supply, and ground terminals, which are low-voltage, are housed in another cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all charging terminals are sealed in the same protection space, then the structure is simple and easy to manufacture, but the security protection performance is insufficient because a leak in any terminal compromises the entire component
Solution Approach 1:
The patent divides the protection space into multiple independent sealed cavities, with each cavity containing specific charging terminals (high-voltage terminals in one cavity, low-voltage terminals in another). This segmentation ensures that a leak or failure in one cavity does not affect other cavities, thereby improving security protection performance while maintaining reasonable structural complexity through systematic compartmentalization
2Reliability
If high-voltage and low-voltage terminals are packaged together, then the device complexity is reduced, but the reliability decreases because failure of one terminal type affects the other
Solution Approach 1:
The patent implements separate sealed cavities for high-voltage terminals and low-voltage terminals, ensuring independent protection. Each cavity is hermetically sealed with its own sealing structure, allowing one terminal type to fail without compromising the other, thus achieving independent protection while using a modular packaging approach to control complexity
Solution Approach 2:
Different cavities are designed with different sealing requirements and protection levels appropriate to the terminal types they contain. High-voltage terminals receive enhanced sealing and isolation measures compared to low-voltage terminals, optimizing the protection structure according to the specific needs of each terminal type rather than applying uniform protection to all
Data Source
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AI summary
This application provides a charging component and a charging device. The charging component includes a housing and a plurality of charging terminals The housing encloses a first accommodation cavity and a second accommodation cavity, and the first accommodation cavity is insulated from the second accommodation cavity The housing corresponding to the first accommodation cavity is provided with at least one first port, and the housing corresponding to the second accommodation cavity is provided with at least one second port. Each of the plurality of charging terminals includes a cable connection termination and a plug in/out termination. Cable connection terminations of some of the plurality of charging terminals are disposed in the first accommodation cavity, and plug in/out terminations of the some charging terminals are exposed to the housing through first ports; and cable connection terminations of the other of the plurality of charging terminals are disposed in the second accommodation cavity, and plug in/out terminations of the other charging terminals are exposed to the housing through second ports. The plurality of charging terminals are sealed in different cavities, to improve security protection performance of the charging component, and further improve security of the charging component.