Teen Off-Road Electric Motorcycle Frame for Modular Battery Packs

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Solution Overview

Problem

There is a lack of vehicles suitable for teenagers to ride outdoors and off-road, particularly electric motorcycles that do not require a driver's license or vehicle registration.

Innovation Solution

An off-road electric motorcycle designed for teenagers, featuring a frame with divided installation sections for a battery pack, including a main and backup battery pack, a power management module for controlled discharge, and safety features like a speed control switch, allowing for different riding modes and power tool compatibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a battery pack is installed in the frame of the electric motorcycle, then the power supply capacity is improved, but the structural complexity increases

Engineering Contradiction:
Improvebattery pack capacityVSAvoidframe structure complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The frame is divided into multiple installation sections (first installation section and second installation section) that can independently accommodate battery packs. This segmentation allows the frame to handle power supply requirements without requiring a completely redesigned structure, thus improving battery capacity while controlling structural complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The frame's installation sections are designed to be universally compatible with different battery pack configurations. The same frame structure can accommodate various battery pack sizes and arrangements, making the frame multi-functional and reducing the need for complex custom structures for each battery configuration.

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

2Duration of action of moving object

If multiple battery packs are installed for extended operation, then the duration of action is improved, but the device complexity increases

Engineering Contradiction:
Improveriding durationVSAvoidpower management system complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The power management system is segmented into a main battery pack and a backup battery pack, each with dedicated connection terminals. This segmentation allows independent management of each battery pack, simplifying the control logic compared to managing a single large battery system, while still enabling extended operation duration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection terminals for the backup battery pack are pre-positioned and configured in advance within the frame structure. This preliminary arrangement allows for quick and simple connection when the backup battery pack is installed, reducing the complexity of the power management system while ensuring extended operation capability.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the battery pack installation section is divided into multiple sections, then the adaptability is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvebattery pack configuration flexibilityVSAvoidinstallation section alignment precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The installation sections are designed as separate, modular units with standardized interfaces. This segmentation allows each section to be manufactured independently with standard precision requirements, then assembled together to achieve the desired adaptability. The modular design reduces the overall manufacturing precision requirements compared to a single integrated structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple installation sections are combined through standardized connection interfaces that tolerate certain dimensional variations. The merging mechanism incorporates tolerance compensation features, allowing the sections to be assembled with standard manufacturing precision while still achieving the required adaptability for different battery pack configurations.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4420967B1Off-road electric motorcycle
Publication Date: 2026.02.04 NANJING CHERVON IND
  • EP4420967B1 patent drawingFigure 1
  • EP4420967B1 patent drawingFigure 2
  • EP4420967B1 patent drawingFigure 3

AI summary

Provided is an off-road electric motorcycle. The off-road electric motorcycle includes a frame; wheels including at least a front wheel and a rear wheel; a power system including an electric motor and a battery pack, where the electric motor is used for driving the wheels, and the battery pack is used for supplying power to the electric motor; and a braking system including at least a braking device for braking a vehicle. The frame includes a support assembly disposed along a length direction of the electric motorcycle. The support assembly is divided into at least a first installation section and a second installation section. The battery pack is pluggably mounted in the first installation section, and the first installation section is located at the front end of the second installation section.