Modular Inverter with Detachable Boxes for Weight Reduction

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Solution Overview

Problem

As the power of combined inverters increases, their weight also increases, making flexible installation and transportation difficult, which reduces their applicability in construction sites and limits their high-power usage.

Innovation Solution

The combined inverter is designed with at least two detachable box bodies, each containing components and equipped with external electrical connection terminals, allowing for sequential installation and connection without a lifting apparatus, enabling lighter weight and easier transportation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the power of the combined inverter is increased, then the power output is improved, but the weight becomes heavier and transportation becomes more difficult

Engineering Contradiction:
Improvepower outputVSAvoidweight
Core Design Contradiction:
PowerVSWeight of moving object

Solution Approach 1:

The combined inverter is divided into multiple detachable box bodies (first box body, second box body, etc.), each containing separate components. This segmentation allows the inverter to maintain high power output while enabling easier transportation and installation by distributing the total weight across multiple lighter modules that can be handled separately without lifting apparatus.

Inventive Principle:
Principle #1Segmentation

2Power

If the power of the combined inverter is increased, then the power output is improved, but the installation flexibility is reduced

Engineering Contradiction:
Improvepower outputVSAvoidinstallation flexibility
Core Design Contradiction:
PowerVSEase of operation

Solution Approach 1:

The inverter system is segmented into multiple independently installable box bodies that can be positioned and connected flexibly at the installation site. Each box body contains complete functional components and can be installed separately, then connected through electrical connection terminals, maintaining installation flexibility even for high-power configurations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electrical connection terminals are designed to enable dynamic reconfiguration of the system. The detachable connections allow the box bodies to be arranged in different configurations (series, parallel, or combinations) depending on the specific installation requirements and power needs, providing adaptability for various application scenarios.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the combined inverter is designed as a single integrated unit, then the structural integrity is improved, but the transportation and installation difficulty increases

Engineering Contradiction:
Improvestructural integrityVSAvoidtransportation ease
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The inverter is segmented into multiple box bodies that are structurally complete and stable in themselves, yet designed for detachable connection. Each box body maintains its structural integrity independently, while the overall system achieves both structural stability and transportation ease through modular architecture with standardized connection interfaces.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3214748B1Combined inverter
Publication Date: 2021.09.01 SUNGROW POWER SUPPLY CO LTD
  • EP3214748B1 patent drawingFigure 1~2
  • EP3214748B1 patent drawingFigure 3~4
  • EP3214748B1 patent drawingFigure 5~6

AI summary

A combined inverter is arranged, which includes at least two separate box bodies connected detachably, all components of the combined inverter are placed into the box bodies separately, and at least one electrical connection terminal is arranged outside each of the box bodies, and the electrical connection terminal of one of the box bodies is capable of being connected to the electrical connection terminal of another of the box bodies. Therefore, a structure connection and an electrical connection of the combined inverter is achieved, weight of the whole combined inverter is dismantled effectively on the premise of ensuring normal operation of the combined inverter, construction difficult of installation and transportation is reduced, and the combined inverter has high applicability even when having high power.