Brake Housing Structure for Stable Piston Alignment

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Solution Overview

Problem

Existing brake housings experience uneven wear of pads and damage due to offset centers of pistons, leading to instability and shock during inward and outward movements.

Innovation Solution

A brake housing design with a support part and accommodation part, featuring varying inner diameters and grooves, supports piston movement, preventing offset and ensuring stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the piston center is offset from the brake housing center, then the structure is simpler, but uneven pad wear occurs and piston stability deteriorates

Engineering Contradiction:

Improvepiston positioning structureVSAvoidpiston movement stability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The brake housing incorporates a support part with a smaller inner diameter than the accommodation part, creating a localized constriction zone. This local quality change provides precise positioning for the piston during movement while maintaining a simpler overall structure without requiring complex positioning mechanisms throughout the entire housing.

Inventive Principle:

Principle #3Local quality

2Manufacturing precision

If the support part inner diameter is smaller than the accommodation part inner diameter, then piston positioning precision is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvepiston positioning precisionVSAvoidbrake housing manufacturing

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The brake housing inner diameter is segmented into two distinct zones: an accommodation part with a larger inner diameter for piston storage and a support part with a smaller inner diameter for positioning. This segmentation allows each zone to be optimized for its specific function while being manufactured as an integrated component, balancing precision requirements with manufacturing feasibility.

Inventive Principle:

Principle #1Segmentation

3Reliability

If the support part contacts the piston, then piston movement stability is improved, but shock damage risk increases

Engineering Contradiction:

Improvepiston movement stabilityVSAvoidpiston and housing durability

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The support part is positioned and dimensioned to contact the piston in a controlled manner that provides stable positioning while distributing contact forces. The gradual transition between the accommodation part and support part creates a cushioning effect that prevents sudden shock impacts, protecting both the piston and housing from damage while maintaining movement stability.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS12595832B2Brake housing

Publication Date: 2026.04.07 HL MANDO CORP

AI summary

Disclosed herein is a brake housing. The brake housing configured such that a piston is disposed therein includes a body opened at one side thereof such that the piston is disposed therein, a support part formed on one side of the body to support the movement of the piston, and an accommodation part formed on the other side of the body to accommodate at least a portion of the piston.