Single-Side Double-Inclined Disc Brake Self-Energizing Design

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Solution Overview

Problem

Conventional disc brakes have low efficiency factors, require power assistance, are difficult to control, and are costly, especially in diesel and electric vehicles, with complex structures and high energy consumption, and lack self-energizing effects, leading to safety and environmental concerns.

Innovation Solution

A single-side double-inclined-surface disc brake design with a compensation mechanism that uses a drive device and retaining devices with high forward transmission efficiency, allowing for electrical control and reduced hydraulic and mechanical mechanisms, enhancing self-energizing capacity and reducing operation force and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If conventional disc brake design is used, then the structure is simple, but the braking force is small and no self-energizing effect is achieved

Engineering Contradiction:
Improvebraking forceVSAvoidstructure complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The brake shoe is divided into two independent brake shoes that can be adjusted separately, allowing each shoe to be optimized for self-energizing effect while maintaining overall structural simplicity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The brake shoe is designed with adjustable position capability, transforming from a static structure to a dynamic one that can adapt to different braking conditions to maximize self-energizing effect

Inventive Principle:
Principle #15Dynamics

2Force

If power assistance is added to conventional disc brake, then braking force is improved, but the device complexity and cost increase

Engineering Contradiction:
Improvebraking forceVSAvoidsystem complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The brake system generates its own amplifying force through the self-energizing mechanism of the brake shoes, eliminating the need for external power assistance systems while maintaining high braking force

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The power assistance device is completely removed from the system, and the braking force deficiency is compensated by the self-energizing effect inherent in the brake shoe design

Inventive Principle:
Principle #2Taking out (Extraction)

3Force

If self-energizing disc brake with two-sided inclined surfaces is used, then self-energizing ratio is increased, but the size and structure complexity increase

Engineering Contradiction:
Improveself-energizing ratioVSAvoidbrake size
Core Design Contradiction:
ForceVSVolume of moving object

Solution Approach 1:

The brake shoe employs asymmetric inclination angles on different surfaces, with one surface having a larger inclination angle than the other, allowing high self-energizing ratio to be achieved with smaller brake dimensions

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

Different regions of the brake shoe have different inclination angles optimized for their specific functions, with the first brake shoe having one inclination angle and the second brake shoe having a different inclination angle

Inventive Principle:
Principle #3Local quality

4Force

If hydraulic drive is used in disc brake, then braking force is achieved, but response lag and security risks occur

Engineering Contradiction:
Improvebraking forceVSAvoidbraking response reliability
Core Design Contradiction:
ForceVSReliability

Solution Approach 1:

The hydraulic drive system is replaced with a direct mechanical drive system where the actuator directly pushes the brake shoes, eliminating fluid transmission lag and improving response reliability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 solution achieves a significantly higher self-energizing ratio, reducing the need for power boosters, lowering operational costs, improving safety and energy efficiency, and simplifying the braking system while maintaining high braking force and ease of control.

Implementation Method 1

a first self-energizing inclined surface (19) on the energizing inclined board (5) is abutted against the self-energizing inclined surface (19) on a control inclined board (7)

Methodology Applied
Scientific EffectInclined plane: Inclined Plane

Implementation Method 2

the retaining device is selected from the group consisting of means, mechanisms, devices, or components with high frontward transmission efficiency and low backward transmission efficiency

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

the brake shoe positioned at one side of the brake disc is mounted onto one side of an energizing inclined board (5)

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9920803B2Single-side double-inclined-surface disc-type brake
Publication Date: 2018.03.20 CHENGDU SHUANGCHEN TECH CO LTD
  • US9920803B2 patent drawing
  • US9920803B2 patent drawing
  • US9920803B2 patent drawing

AI summary

The invention relates to a disc-type brake which can use the energy of a transport machine during its traveling to brake, has a huge self-energizing action and is used for a motorcycle, a car, a truck, a train and an elevator. The brake has a very small control force (power), is simple and reliable and has a small volume. The brake is very easily designed as an electrically controlled disc-type brake system (EMB), the power and volume of an electrically controlled motor of the brake can be several times—more than a dozen of times less than that of an electrically controlled motor in the prior art, after its promotion, the brake can greatly improve the safety of the car and the motorcycle. The brake can reduce many parts, components and mechanisms and save much cost and bring us tremendous social and economic benefits and is a landmark brake.