Electric automobile charging pile

By using parallel-connected charging stack main cabinets and control terminals in the charging stack, and combining star and ring topology networks for power distribution, the delay and unevenness problems during the expansion of modular charging stacks are solved, achieving efficient power distribution and improved system availability.

CN224392397UActive Publication Date: 2026-06-23GUANGDONG YINGTONG ZHILIAN DIGITAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521769352.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2026-06-23
Estimated Expiration
2035-08-20

AI Technical Summary

Technical Problem

Existing modular charging piles suffer from high communication latency between modules and uneven power distribution during capacity expansion, resulting in low overall operating efficiency of the charging pile after expansion.

Method used

The system employs two parallel-connectable charging stack main cabinets and control terminals, utilizing PDU output modules connected via parallel cabinet contactors and communication interfaces. Power distribution is achieved through star and ring topology networks, enabling plug-and-play capacity expansion and optimizing power distribution through intelligent scheduling algorithms.

Benefits of technology

It improves the power distribution efficiency after the charging pile is expanded, avoids the islanding effect, enhances the continuous availability and space utilization of the system, and reduces maintenance costs.

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Abstract

The utility model relates to the technical field of new energy equipment, and particularly discloses an electric automobile charging pile which comprises two charging pile main cabinets and a control terminal, the output ends of the charging pile main cabinets are provided with PDU output modules, the two PDU output modules are electrically connected, the PDU output modules are further in communication connection with the control terminal, and the control terminal is connected with the charging pile main cabinets. The input end of any charging pile main cabinet is provided with a first power distribution circuit and a second power distribution circuit, a first star topology power distribution module is installed between the first power distribution circuit and the output end of the charging pile main cabinet, and a second star topology power distribution module is installed between the second power distribution circuit and the output end of the charging pile main cabinet. The output end of the first star topology power distribution module is connected with the output end of the second star topology power distribution module through a ring topology network. According to the utility model, the problems of high delay between modules, non-uniform power distribution and reduction of the overall working efficiency of the charging pile after capacity expansion during capacity expansion of the traditional modular charging pile are solved.
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