Ethernet interface high-voltage isolation system based on intelligent electric meter

CN224233705UActive Publication Date: 2026-05-12HANGZHOU QIUYI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU QIUYI TECH CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing smart meters' Ethernet ports suffer from poor isolation performance, insufficient voltage withstand level, and incomplete signal path isolation in high-voltage isolation communication, making it difficult to guarantee the safety and reliability of high-speed data transmission in high-voltage environments.

Method used

A dual isolation mechanism is adopted, including a primary isolation unit module and a secondary electrical isolation module. The network transformer and optocoupler isolation module are used for full-path electrical isolation, and common-mode noise is suppressed by grounding capacitors and resistor networks, so as to achieve high-voltage isolation and stable signal transmission.

Benefits of technology

It achieves improved high-voltage isolation capability, surpasses traditional solutions in withstand voltage level, significantly reduces common-mode noise, greatly improves data transmission stability and reliability, enhances fault safety, and has a lower overall cost.

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Abstract

The utility model discloses an Ethernet interface high-voltage isolation system based on an intelligent electric meter, which comprises an Ethernet module, a primary isolation unit module and a secondary electrical isolation module, and is characterized in that the Ethernet module is connected with the primary isolation unit module and the secondary electrical isolation module; the utility model provides an Ethernet interface high-voltage isolation system based on an intelligent electric meter, which has multiple isolation mechanisms.
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