Portable Battery Charging Box Layout for Secure Transport

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Solution Overview

Problem

Existing battery charging devices for ECMO systems are prone to battery dislodgement during transportation due to their open design, posing a risk of battery loss and potential failure from liquid ingress, especially in adverse weather conditions.

Innovation Solution

A battery charging device with a charging box featuring compartments with drainage channels, support guide ribs, elastic shielding members, and a grip that aligns with the tilt direction of the compartments, along with a liquid outlet system to prevent battery dislodgement and liquid ingress, ensuring reliable operation during transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the battery charging device uses an open design for quick plug-and-unplug operation, then the ease of operation is improved, but the reliability of battery retention during transportation deteriorates

Engineering Contradiction:
Improvequick plug-and-unplug operationVSAvoidbattery retention during transportation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The battery compartment is segmented into multiple compartments (first battery compartment, second battery compartment) with distinct functions. The first compartment provides quick-access plug-and-unplug capability, while the second compartment offers secure retention with elastic shielding members, resolving the contradiction between operational convenience and transportation reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the battery charging device are designed with different qualities: the first battery compartment has an open design for ease of operation, while the second battery compartment incorporates elastic shielding members and drainage channels for enhanced reliability and liquid protection during transportation.

Inventive Principle:
Principle #3Local quality

Solution Approach 3:

The battery compartments are designed with asymmetric characteristics - the first compartment prioritizes accessibility with its open design, while the second compartment prioritizes security with elastic shielding members that actively constrain the battery, creating a balance between operational ease and transportation reliability.

Inventive Principle:
Principle #4Asymmetry

2Object-affected harmful factors

If the battery compartment is designed with drainage channels and elastic shielding members, then the protection against liquid ingress is improved, but the device complexity increases

Engineering Contradiction:
Improveprotection against liquid ingressVSAvoidstructure with drainage channels and shielding members
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Drainage channels are pre-configured in the battery compartments to guide liquid away from critical components before liquid ingress can cause damage. Elastic shielding members are pre-positioned to automatically contact and protect the battery inlet end, providing proactive protection against liquid harm without requiring complex active control systems.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The elastic shielding member acts as an intermediary between the battery and the harmful liquid environment. It provides a simple yet effective barrier that protects the battery inlet end from liquid ingress while maintaining the overall simplicity of the device structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Duration of action of moving object

If multiple batteries are prepared for long-term transportation, then the duration of action is improved, but the loss of time for battery replacement increases

Engineering Contradiction:
Improvebattery support durationVSAvoidtime for battery replacement
Core Design Contradiction:
Duration of action of moving objectVSLoss of time

Solution Approach 1:

The battery charging device incorporates a switching power supply that dynamically switches between multiple batteries during transportation. This allows the system to maintain continuous operation for extended durations by automatically transitioning between battery sources, eliminating the need for manual battery replacement and reducing time loss.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The battery charging device is designed with multi-functionality to support both single-battery quick replacement mode and multi-battery long-term transportation mode. The switching power supply and multiple battery compartments enable the device to adapt to different operational requirements, providing extended duration of action without sacrificing operational efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device significantly reduces the risk of battery dislodgement and failure by maintaining secure battery placement and effective liquid drainage, enhancing reliability and safety during transportation.

Implementation Method 1

an end of the battery compartments away from the inlet end is lower than the inlet end of the battery compartments... a liquid in the battery compartment is discharged through the second opening and the drainage channel

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP4645640A1Battery charging device
Publication Date: 2025.11.05 LIFEMOTION MEDICAL TECHNOLOGY CO LTD
  • EP4645640A1 patent drawingFigure 1
  • EP4645640A1 patent drawingFigure 2
  • EP4645640A1 patent drawingFigure 3

AI summary

A battery charging device suitable for portable operation includes a charging box with a grip is provided on one side of the top of the charging box near a first opening, and when the battery charging device is lifted by the grip, the tilt direction of the battery charging device is consistent with the tilt direction of a battery compartment. The battery charging device can thereby reduce the risk of the battery easily falling out of the battery compartment during transportation, which improves the reliability of the battery charging device during transportation.