US 2026/0285170 A1 · VEHICLE BATTERY MODULE COMPRISING POWER CONVERSION DEVICE, AND VEHICLE BATTERY SYSTEM BASED ON PLURALITY OF VEHICLE BATTERY MODULES

Abstract

The present invention relates to a vehicle battery module comprising a power conversion device, and a three-phase vehicle battery system based on a plurality of vehicle battery modules. The vehicle battery module comprises a battery, a DC/DC converter and a three-phase alternating current unit for outputting a three-phase alternating current module voltage. In addition, the three-phase vehicle battery system includes: a plurality of vehicle battery modules; a direct current system output terminal connecting, in parallel, the direct current module output terminals included in each of the plurality of vehicle battery modules; and a three-phase alternating current system output terminal connecting, in series for each phase, the three-phase alternating current module output terminals included in each of the plurality of vehicle battery modules.

Claims16

Dependent claims

A vehicle battery module comprising:

a battery outputting a battery voltage;
a DC/DC converter converting the battery voltage into a direct current (DC) module voltage lower than the battery voltage and outputs the DC module voltage;
and
a three-phase alternating current (AC) unit converting the battery voltage into a three-phase AC module voltage and outputting the three-phase AC module voltage,
wherein the three-phase AC unit includes a first inverter converting the battery voltage into a primary AC voltage and a multi-winding transformer converting the primary AC voltage into a plurality of secondary AC voltages and is configured to convert the plurality of secondary AC voltages into the three-phase AC module voltage.

2 more elements

A three-phase vehicle battery system comprising:

a plurality of vehicle battery modules including a direct current (DC) module output terminal outputting a DC module voltage that is lower than an internal battery voltage from the internal battery voltage and a three-phase alternating current (AC) module output terminal outputting a three-phase AC module voltage having the same phase difference;
a DC system output terminal configured as the DC module output terminals respectively included in the plurality of vehicle battery modules are connected in parallel;
and
a three-phase AC system output terminal configured as the three-phase AC module output terminals respectively included in the plurality of vehicle battery modules are connected in series by phases.

1 more element

Dependencies are inferred from the claim text.

Vehicle battery module comprising power conversion device, and vehicle battery system based on plurality of vehicle battery modules

Life of this patent

Vehicle battery module comprising power conversion device, and vehicle battery system based on plurality of vehicle battery modules

Life of this patent

Abstract

Claims16