Electric Carrier Shock Absorber Spring Steering Assembly

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Solution Overview

Problem

Conventional hydraulic shock absorbers in electric scooters are complex and costly due to the need for a large oil tank, resulting in increased volume and production expenses.

Innovation Solution

A shock-absorbent structure utilizing a steering assembly with a bushing, steering connecting portion, and an elastic body, such as a spring, to absorb vibrations by moving a pressing member within a body opening, eliminating the need for a hydraulic oil tank.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hydraulic shock absorber with an oil tank is used, then the shock absorbing effect is achieved, but the overall volume and production cost increase

Engineering Contradiction:

Improveshock absorbing effectVSAvoidoverall volume of shock-absorbent structure

Core Design Contradiction:

ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent extracts and eliminates the oil tank from the shock absorber system, replacing the hydraulic shock absorption mechanism with a purely elastic mechanical system using springs. This removes the bulky fluid storage component while maintaining the core shock absorption function through elastic deformation of the spring elements.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent substitutes the hydraulic mechanical system (oil tank, piston, fluid pressure) with a simpler elastic mechanical system (springs, pressing members, rigid bodies). This replacement eliminates the need for fluid containment while achieving shock absorption through elastic potential energy storage and release.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a hydraulic shock absorber with an oil tank is used, then the shock absorbing effect is achieved, but the production cost increases

Engineering Contradiction:

Improveshock absorbing effectVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs inexpensive elastic components (springs, rubber elements) that can be manufactured at low cost compared to precision hydraulic systems. These elastic bodies are simpler to produce, require fewer manufacturing steps, and eliminate the need for sealed fluid systems, thereby reducing production expenses.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

By replacing the complex hydraulic system with a simpler elastic mechanical system, the patent reduces manufacturing complexity, material requirements, and assembly steps, leading to lower production costs while maintaining functional effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If a conventional hydraulic shock absorber is used, then the shock absorbing function is provided, but the structure becomes complicated

Engineering Contradiction:

Improveshock absorbing functionVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the oil tank and hydraulic fluid from the system, extracting the complex hydraulic subsystem and replacing it with a simpler elastic element-based system. This reduction in components simplifies the overall structure while preserving the shock absorption capability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent integrates the shock absorption function directly into the existing steering assembly structure by incorporating elastic bodies and pressing members within the steering connecting portion, eliminating the need for separate hydraulic shock absorber components and simplifying the overall assembly.

Inventive Principle:

Principle #5Merging (Combining)

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

This solution provides effective vibration absorption and reduced volume, enhancing riding comfort while lowering production costs compared to traditional hydraulic systems.

Implementation Method 1

an elastic body disposed between the body and the bushing... the elastic body at the same time provides an elastic force for counteracting a vibration amplitude

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS20180334215A1Shock-absorbent structure of electric carrier

Publication Date: 2018.11.22 KUIANDA COMPANY

AI summary

A shock-absorbent structure of an electric carrier is assembled with a steering system. The steering system includes a steering axis and two wheels linked with the steering axis. The shock-absorbent structure of an electric carrier includes a steering assembly and a wheel axle assembly. The steering assembly includes a bushing, a steering connecting portion connected to the bushing, and an accommodating space. The wheel axle assembly includes a body, two axle connecting members respectively disposed at two ends of the body, a body opening penetrating the body, an elastic body disposed between the body and the bushing, and a pressing member passing the body opening. The pressing member abuts at one end of the body corresponding to the bushing when the elastic body is in a diastolic state, and moves away from the bushing when the elastic body is in a compressed state.