Integrated Energy Storage Charging Pile for Transformer-Free Fast Charging

Solution Overview

Problem

Fast-charging/super-charging piles require additional transformers or transformer capacity expansion, which hinders rapid connection and increases costs.

Innovation Solution

Configuring energy storage units inside the charging apparatus, eliminating the need for additional transformers or capacity expansion, enabling rapid charging and reducing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If additional transformers or transformer capacity expansion are used to enable fast-charging/super-charging, then charging power is improved, but device complexity and cost increase

Engineering Contradiction:

Improvecharging powerVSAvoidtransformer configuration complexity

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The patent combines the energy storage function and charging function into a single integrated device. The energy storage units are configured inside the charging apparatus, merging the transformer and energy storage components into one unified system that provides both power conversion and energy buffering capabilities

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The charging apparatus is designed to perform multiple functions: it can provide fast-charging/super-charging at high power levels, and simultaneously function as an energy storage device. The same hardware configuration supports both charging operations and energy storage, eliminating the need for separate dedicated components

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Power

If additional transformers or transformer capacity expansion are used to enable fast-charging/super-charging, then charging power is improved, but cost increases

Engineering Contradiction:

Improvecharging powerVSAvoidmanufacturing cost

Core Design Contradiction:

PowerVSEase of manufacture

Solution Approach 1:

The patent combines the energy storage function and charging function into a single integrated device. The energy storage units are configured inside the charging apparatus, merging the transformer and energy storage components into one unified system that provides both power conversion and energy buffering capabilities

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The charging apparatus is designed to perform multiple functions: it can provide fast-charging/super-charging at high power levels, and simultaneously function as an energy storage device. The same hardware configuration supports both charging operations and energy storage, eliminating the need for separate dedicated components

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Speed

If additional transformers or transformer capacity expansion are used to enable fast-charging/super-charging, then charging speed is improved, but connection time increases

Engineering Contradiction:

Improvecharging speedVSAvoidconnection time

Core Design Contradiction:

SpeedVSLoss of time

Solution Approach 1:

The energy storage units are pre-configured inside the charging apparatus, ready to immediately buffer and release energy when needed. This preliminary configuration eliminates the need for on-site transformer installation or capacity expansion when deploying fast-charging capabilities

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent combines the energy storage function and charging function into a single integrated device. The energy storage units are configured inside the charging apparatus, merging the transformer and energy storage components into one unified system that provides both power conversion and energy buffering capabilities

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250353396A1Charging apparatus, charging pile, and charging and storage system

Publication Date: 2025.11.20 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

AI summary

A charging apparatus includes: an energy storage module including one or more energy storage units each having first positive and first negative power supply terminals, the one or more energy storage units are connected to second positive and second negative power supply terminals of the energy storage module via the first positive and first negative power supply terminals, and the energy storage module is configured to provide a first direct current; and a charging module connected to the second positive and second negative power supply terminals of the energy storage module, and the charging module is configured to be adapted to provide charging output based on the first direct current; where maximum charging output power of the charging module is greater than or equal to 350 kilowatts, and/or rated charging output power of the charging module is greater than or equal to 290 kilowatts.