Compressor Integrally Formed Cylinder Block Cooling

Solution Overview

Problem

Compressors in electric vehicles generate noise and face challenges in reducing temperature and heat resistance, with existing solutions experiencing issues due to separate components causing vibrations and noise.

Innovation Solution

A compressor design with an integrally formed housing that includes a compression mechanism and a silencing and cooling device, featuring a communicating hole between the compression and silencing and cooling spaces, utilizing a water-cooled or air-cooled intercooler core to cool and reduce pressure fluctuations, thereby minimizing noise and vibration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a separate cover is attached to the housing to form a silencing and cooling device, then cooling function is added, but vibration-induced noise increases and structural rigidity decreases

Engineering Contradiction:

Improvedischarged air temperatureVSAvoidvibration-induced noise

Core Design Contradiction:

TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent merges the housing and cover into a single integrally formed cylinder block structure. The cylinder block simultaneously serves as the housing for the compression mechanism and contains the silencing and cooling chamber, eliminating the separate cover attachment and thereby preventing vibration-induced noise while maintaining the cooling function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cylinder block is designed as a multi-functional component that combines multiple functions: it houses the compression mechanism, provides structural support, and contains the silencing and cooling chamber. This universal structure eliminates the need for separate components and reduces vibration-induced noise while maintaining all required functions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Temperature

If a separate cover is attached to the housing to form a silencing and cooling device, then cooling function is added, but the number of parts and device complexity increase

Engineering Contradiction:

Improvedischarged air temperatureVSAvoidnumber of parts

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent merges the housing and cover into a single integrally formed cylinder block structure. The cylinder block simultaneously serves as the housing for the compression mechanism and contains the silencing and cooling chamber, eliminating the separate cover attachment and thereby preventing vibration-induced noise while maintaining the cooling function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cylinder block is designed as a multi-functional component that combines multiple functions: it houses the compression mechanism, provides structural support, and contains the silencing and cooling chamber. This universal structure eliminates the need for separate components and reduces vibration-induced noise while maintaining all required functions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Volume of stationary object

If a separate cover is attached to the housing, then mounting space for auxiliaries is secured, but structural rigidity and noise resistance decrease

Engineering Contradiction:

Improvemounting spaceVSAvoidstructural rigidity

Core Design Contradiction:

Volume of stationary objectVSStrength

Solution Approach 1:

The patent merges the housing and cover into a single integrally formed cylinder block structure. The cylinder block simultaneously serves as the housing for the compression mechanism and contains the silencing and cooling chamber, eliminating the separate cover attachment and thereby preventing vibration-induced noise while maintaining the cooling function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The silencing and cooling chamber is formed as an internal cavity within the cylinder block structure, utilizing the vertical and radial dimensions of the existing housing rather than adding external volume. This maintains structural compactness while providing the required cooling and silencing functions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 effectively reduces noise and temperature while improving structural rigidity, allowing for a compact design that reduces the size and weight of the compressor, and minimizes the risk of vibration-induced noise.

Implementation Method 1

a water-cooled or air-cooled intercooler core to cool and reduce pressure fluctuations

Methodology Applied

Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

the fluid is subject to a silencing action with its discharge pulsations being damped

Methodology Applied

Scientific EffectDamping: Damping

Data Source

PatentUS9366258B2Compressor having intercooler core

Publication Date: 2016.06.14 TOYOTA INDUSTRIES CORP

AI summary

A compressor has a housing which includes a compression mechanism for compressing and then discharging sucked air, and an intercooler core for cooling the discharged air and mitigating a pressure fluctuation thereof. The housing has a cylinder block integrally formed so as to include a rotor chamber which accommodates the compression mechanism, a silencing and cooling chamber which accommodates the intercooler core, and a discharge hole which provides communication between the rotor chamber and the silencing and cooling chamber.