Electric Vehicle Battery Lifting Device for Detachable Handling

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Solution Overview

Problem

Existing electric vehicles require complex and costly processes for battery detachment and reinstallation, making it difficult for users to conveniently remove and replace batteries, which increases operational costs and safety hazards.

Innovation Solution

An electric vehicle design featuring a detachable power battery module with rolling wheels, a lifting device, and a flexible cable for easy manual handling, allowing users to detach and reattach batteries without additional equipment, utilizing an electric or manual driving mechanism for the lifting device and incorporating a charge control circuit and voltage adjustment for versatile power output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If detachable battery installation structures are adopted, then battery can be removed and moved separately, but the detachment and installation process becomes complex and costly

Engineering Contradiction:
Improvebattery detachment and removalVSAvoiddetachment and installation process
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The battery system is segmented into a detachable battery pack and a vehicle platform. The battery pack includes independent components (battery module, handle, rolling wheels, lifting device) that can be separately assembled and disassembled, enabling simple detachment without complex tools or procedures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The battery pack is equipped with self-contained functionality including integrated lifting devices and rolling wheels that enable users to independently detach, transport, and reinstall the battery pack without requiring external equipment or specialized personnel.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If special equipment is used for battery detachment, then battery can be removed, but the cost of use increases

Engineering Contradiction:
Improvebattery removalVSAvoidcost of use
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The battery pack incorporates self-service features including integrated lifting mechanisms and rolling wheels that eliminate the need for external cranes, forklifts, or specialized installation equipment, thereby reducing operational costs.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The battery pack design with universal handling features (rolling wheels, lifting devices, standardized interfaces) can be operated by ordinary users without specialized equipment, making the system universally applicable and cost-effective for various users.

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

3Reliability

If fixed installation structures are adopted, then battery stability is ensured, but the entire vehicle must be involved during charging or maintaining operations

Engineering Contradiction:
Improvebattery installation stabilityVSAvoidcharging and maintaining operations
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The battery system is divided into a detachable battery pack that can be independently removed from the vehicle, allowing charging and maintenance operations to be performed on the battery pack alone rather than requiring the entire vehicle to be involved.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The battery installation structure transitions from fixed to dynamic/detachable, allowing the battery pack to be securely installed during operation (ensuring stability) and easily detached for charging or maintenance (enabling operational flexibility).

Inventive Principle:
Principle #15Dynamics

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

Enables users to conveniently detach and reattach batteries without excessive effort, reducing installation complexity and operational costs, while allowing the battery module to function as a transportation tool and improving vehicle viability through self-movement and easy replacement.

Implementation Method 1

a lifting device installed at and carried by the electric vehicle, and configured to releasably hold the power battery module and lift the power battery module from a ground proximity position on or near the ground to the predetermined installation position

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

rolling wheels, installed at the housing; the height of the ground proximity position is low enough for the user to push the power battery module to the ground proximity position via the rolling wheels

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3196063B1Electric vehicle comprising a lifting device for battery
Publication Date: 2019.07.10 ZHEJIANG GEELY HLDG GRP CO LTD
  • EP3196063B1 patent drawingFigure 1
  • EP3196063B1 patent drawingFigure 2
  • EP3196063B1 patent drawingFigure 3

AI summary

An electric vehicle (10) includes a power battery module (20) detachably installed at a predetermined installation position of the electric vehicle (10); the power battery module (20) includes a housing (21), a plurality of battery cells installed in the housing (21), rolling wheels (22) and a handle (23) installed on the housing, and an electric power output port. A lifting device capable of releasably holding the power battery module (20) and lifting the power battery module (20) from a ground proximity position on or near the ground to the predetermined installation position is installed at the electric vehicle. As the electric vehicle (10) is provided with the lifting device, installation and removal of the power battery thereof can be accomplished without using other installation equipment. Furthermore, the detachable power battery module (20) can be moved by a user without excessive effort.