Embedded type air conditioner outdoor unit and an air conditioner

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Solution Overview

Problem

The installation of outdoor units for household VRF air conditioners is challenging when there are no suitable exterior wall locations, and embedding them in walls leads to vibration and noise transmission into indoor spaces, degrading user experience.

Innovation Solution

An embedded type air conditioner outdoor unit is designed to be mounted within a building's wall, utilizing a heat exchanger with a refrigerant and a heat exchange medium for heat exchange, eliminating the need for a fan system, thereby reducing vibration and noise. This unit includes a plate heat exchanger, compressor, gas-liquid separator, electrical box, and four-way valve, all housed in a compact structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the air conditioner outdoor unit is embedded in the wall of a building, then the installation problem is solved and the unit does not protrude from the exterior wall, but vibration and noise are transmitted into the indoor space, degrading user experience

Engineering Contradiction:
Improveinstallation feasibilityVSAvoidnoise and vibration transmission
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The fan system is completely removed from the embedded outdoor unit. Instead of using a fan to force air circulation, the invention uses a heat exchange medium (water or other fluids) that flows through pipes to transfer heat, thereby eliminating the primary source of noise and vibration generation

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The mechanical fan-driven air circulation system is replaced with a fluid-based heat exchange system. The heat exchange medium circulates through the heat exchanger, absorbing or releasing heat without requiring mechanical agitation, thus substituting a noisy mechanical system with a quieter fluid dynamics-based system

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

Solution Approach 3:

A heat exchange medium (water or other fluids) is introduced as an intermediary between the refrigerant and the outdoor environment. This medium absorbs or releases heat through the heat exchanger, serving as a mediator that eliminates the need for direct air movement by fans, thereby reducing noise and vibration transmission to the building interior

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If a fan system is used for heat exchange, then heat transfer efficiency is maintained, but vibration and noise are generated

Engineering Contradiction:
Improveheat exchange efficiencyVSAvoidvibration and noise
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The mechanical fan system is replaced with a fluid-based heat exchange system where a heat exchange medium (water or other fluids) circulates through the heat exchanger. This substitution maintains effective heat transfer through fluid convection and conduction while eliminating the mechanical noise and vibration associated with fan operation

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

Solution Approach 2:

The invention employs a hydraulic system using a heat exchange medium (liquid) that circulates through the heat exchanger. This hydraulic approach to heat transfer replaces the pneumatic/mechanical fan system, utilizing fluid flow dynamics to achieve efficient heat exchange without mechanical moving parts that generate noise and vibration

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 allows for a quieter and less vibrating air conditioner outdoor unit, preventing accidental damage and loss, and can be installed without protruding from the exterior wall, enhancing user experience by minimizing noise and vibration.

Implementation Method 1

a heat exchanger, which comprises a first inlet for introducing a refrigerant and a second inlet for introducing a heat exchange medium to perform heat exchange with the refrigerant

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

a plate heat exchanger

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10801740B2Embedded type air conditioner outdoor unit and an air conditioner
Publication Date: 2020.10.13 GREE ELECTRIC APPLIANCE INC OF ZHUHAI
  • US10801740B2 patent drawing
  • US10801740B2 patent drawing

AI summary

The present disclosure relates to an embedded type air conditioner outdoor unit and an air conditioner, wherein the embedded type air conditioner outdoor unit is configured to be embedded within a wall of a building, and the embedded type air conditioner outdoor unit comprises a heat exchanger, which includes a first inlet for introducing a refrigerant and a second inlet for introducing a heat exchange medium to perform heat exchange with the refrigerant. By applying the technical solution of the present application, in which the heat exchange medium is used to perform heat exchange with the refrigerant, the embedded type air conditioner outdoor unit of the present embodiment may be used without a fan system, so that the embedded type air conditioner outdoor unit has reduced vibration and noise.