Electric Scooter Battery Compartment Flange for Impact-Stable Mounting

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Solution Overview

Problem

Existing battery compartments in electric scooters have complex mounting mechanisms with low strength connections, leading to potential disconnection and fall-out under impact forces.

Innovation Solution

A battery compartment design featuring a compartment body with a limiting flange that abuts against the frame, reinforced by a rib structure, and secured with threaded connections, ensuring stable lapping and easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the battery compartment is complexly mounted to the frame, then the connection strength should be improved, but the mounting complexity increases and the joint stability still deteriorates under impact force

Engineering Contradiction:
Improveconnection strengthVSAvoidmounting complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The battery compartment is divided into the compartment body and the limiting flange as separate functional elements. The limiting flange is specifically designed to bear impact forces while the compartment body houses the battery, allowing the mounting structure to be simplified without compromising overall strength

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The limiting flange acts as an intermediary element between the compartment body and the frame. It specifically engages with the frame to absorb and distribute impact forces, eliminating the need for complex mounting mechanisms while maintaining connection strength

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the battery compartment uses a simple mounting structure, then the mounting ease is improved, but the joint stability deteriorates when subjected to impact force

Engineering Contradiction:
Improvemounting easeVSAvoidjoint stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The limiting flange is provided with localized engagement features (such as engagement protrusions fitting into engagement grooves on the frame) that concentrate impact force resistance at specific points. This allows the overall mounting structure to remain simple while achieving high joint stability where needed

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The limiting flange combines structural rigidity for force bearing with geometric features optimized for stable engagement with the frame. The flange's design integrates both mounting simplicity and impact resistance through its composite geometric structure

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If the limiting flange is designed with engagement features, then the joint stability is improved, but the device complexity increases

Engineering Contradiction:
Improvejoint stabilityVSAvoidstructure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The limiting flange merges multiple functions into a single component: it provides structural support, absorbs impact forces, and ensures stable positioning through engagement features. This integration eliminates the need for separate mounting brackets or additional stabilizing elements, reducing overall device complexity while maintaining joint stability

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4037081B1Electric scooter comprising a battery compartment
Publication Date: 2026.05.06 NINEBOT (CHANGZHOU) TECH CO LTD
  • EP4037081B1 patent drawingFigure 1~2
  • EP4037081B1 patent drawingFigure 3~4

AI summary

A battery compartment (100), a battery compartment assembly and an electric scooter are provided. The battery compartment is used for an electric scooter, and includes a compartment body (1) and a limiting flange (2). The electric scooter includes a frame (5) with an opening (501), and the opening (501) runs through the frame (5) in an up-down direction. The compartment body (1) is configured to penetrate through the opening (501), and the limiting flange (2) is arranged to an outer side wall of the compartment body (1) and configured to abut against the frame (5) to prevent the compartment body (1) from falling out of the opening (501) downwards.