Power through-wall terminal supporting grid-connected and off-grid switching and power conversion equipment

By integrating multiple on-grid and off-grid interfaces and temperature sampling terminals, the design solves the problems of non-compact layout and complex sealing of inverter AC terminals, achieving compact design, low cost and high reliability.

CN224400695UActive Publication Date: 2026-06-23SHANGHAI SIGE DIGITAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521637157.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2026-06-23
Estimated Expiration
2035-08-01

AI Technical Summary

Technical Problem

In the existing technology, the AC terminal layout of inverters with grid-connected and off-grid functions is not compact enough, and the sealing design is complex, resulting in excessively large machine size and increased cost.

Method used

Design a power through-wall terminal that supports grid-connected and off-grid switching. By highly integrating multiple grid-connected and off-grid connectors, the terminal design volume is reduced and the number of sealing interfaces is decreased. It adopts highly integrated multi-channel grid-connected and off-grid interfaces, with one-to-one correspondence between internal and external connectors, and is equipped with a temperature sampling connector to detect the wiring temperature.

Benefits of technology

This design achieves a compact terminal structure layout, reduces design costs, improves sealing reliability, and prevents safety hazards caused by improper wiring through temperature sampling terminals, thereby improving connection reliability.

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Abstract

The utility model discloses a power through-wall terminal supporting grid-connected and off-grid switching and power conversion equipment. The power through-wall terminal supporting grid-connected and off-grid switching comprises a base, a first wiring module and a second wiring module, the first wiring module comprises an external grid-connected wiring piece and an external off-grid wiring piece which are arranged side by side along a first direction, and the external grid-connected wiring piece and the external off-grid wiring piece are distributed in a high-low staggered manner along a second direction; the second wiring module comprises an inner grid-connected wiring piece and an inner off-grid wiring piece which are arranged side by side in the first direction, the inner grid-connected wiring piece and the outer grid-connected wiring piece are connected in a one-to-one mode, the inner off-grid wiring piece and the outer grid-connected wiring piece are connected in a one-to-one mode, and temperature sampling wiring ports are formed in the inner grid-connected wiring piece and the inner off-grid wiring piece. According to the through-wall terminal, through high integration of multiple paths of grid-connected interfaces and off-grid interfaces, the overall layout of the terminal structure is compact, the design volume can be effectively reduced, and the design cost is reduced; and the temperature sampling wiring port can detect the temperature of the connection part of the wiring piece, so that the terminal temperature rise caused by improper wiring of a client is prevented, and the potential safety hazard caused by high temperature is avoided.
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