Low voltage power supply system and vehicle

By adopting a parallel and series power supply module structure in the vehicle's low-voltage power supply system, combined with unidirectional conductive components and switching modules, the problem that a single voltage power supply system cannot meet diverse power needs is solved, achieving efficient and reliable multi-voltage output and simplifying circuit connections.

CN224401166UActive Publication Date: 2026-06-23GREAT WALL NEW ENERGY COMMERCIAL VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GREAT WALL NEW ENERGY COMMERCIAL VEHICLE CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing vehicle low-voltage power supply systems can only output a single voltage, which is insufficient to meet the diverse power needs of different low-voltage electrical equipment.

Method used

The first power supply module and the second power supply module are connected in parallel and output two different voltages through series connection. Combined with unidirectional conductive components and switching modules, flexible voltage switching and fault backup are realized to ensure the stability and reliability of the power supply system.

Benefits of technology

It meets the diverse power needs of different low-voltage electrical equipment, improves the efficiency and reliability of the power supply system, extends the service life of the equipment, simplifies circuit wiring, and reduces the number of power supply terminals connected by users.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a low-voltage power supply system and a vehicle, wherein the low-voltage power supply system comprises a first power supply module and a second power supply module; the second power supply module is connected in parallel with the first power supply module, and the second power supply module is connected in series with the first power supply module; wherein the first power supply module and / or the second power supply module independently outputs a first voltage; and the first power supply module and the second power supply module jointly output a second voltage, and the second voltage is greater than the first voltage. Through the application, the diversified power demand of different low-voltage electrical equipment on the vehicle can be better met.
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