Buffering and balancing type mobile primary-secondary air conditioning system

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Solution Overview

Problem

Existing mobile air conditioners face limitations such as high noise levels, installation requirements, and limited working time due to energy storage constraints, hindering their market expansion and user convenience.

Innovation Solution

A buffered balanced type mobile primary-secondary air conditioner system with a fixed or mobile primary machine and at least one mobile secondary machine, utilizing three isolated working media, including a compressor, condenser, evaporator, and energy storage buffer box, allowing for energy storage and low-noise operation without installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an integrated structure mobile air conditioner is used, then it is movable and easy to install, but it produces high noise levels

Engineering Contradiction:
Improvemobility and ease of installationVSAvoidnoise level
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The air conditioning system is divided into two separate units: a primary machine containing the noisy compressor and a secondary machine containing the evaporator and fan. This segmentation allows the noise-generating components to be isolated from the user environment while maintaining mobility and ease of installation through the detachable connector design.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If energy storage technology is adopted in mobile air conditioner, then noise is reduced and installation is avoided, but working time is limited due to energy storage constraints

Engineering Contradiction:
Improvenoise levelVSAvoidworking time
Core Design Contradiction:
Object-affected harmful factorsVSDuration of action of moving object

Solution Approach 1:

A detachable connector serves as an intermediary mechanism between the primary and secondary machines, enabling flexible connection and disconnection. This allows the system to operate in different modes: connected mode for extended working time with full energy storage capacity, and disconnected mode for portable use with reduced noise, effectively mediating between the conflicting requirements of working time and noise reduction.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If an integrated structure mobile air conditioner is used, then it can be moved freely, but installation requirements still exist

Engineering Contradiction:
Improvefree movementVSAvoidinstallation requirement
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The system is segmented into primary and secondary machines that can be independently moved and positioned. The detachable connector enables easy assembly and disassembly without requiring professional installation, allowing users to freely move the units while simplifying the installation process to simple connection steps.

Inventive Principle:
Principle #1Segmentation

4Ease of operation

If the primary machine and secondary machine are connected through detachable connector, then mobility is improved, but system complexity increases

Engineering Contradiction:
ImprovemobilityVSAvoidsystem structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The detachable connector is designed with universal functionality to handle multiple connections (refrigerant lines, drainage, electrical connections) in a single integrated component. This multi-functional design simplifies the overall system structure by consolidating multiple separate connection mechanisms into one universal interface, thereby improving mobility without proportionally increasing system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system enables free mobility, energy-saving operation, and low noise levels, with the ability to perform outdoor heat exchange, and can support multiple secondary machines, reducing noise by 25-30 decibels compared to traditional mobile air conditioners.

Implementation Method 1

the evaporator is immersed in the energy storage buffer box... the second working medium in the energy storage buffer box is connected to the primary machine output joint through a water pump and a conduit

Methodology Applied
Scientific EffectHeat absorption: Heat Exchanger

Implementation Method 2

The second working medium in the energy storage buffer box is connected to the primary machine output joint through a water pump and a conduit

Methodology Applied
Scientific EffectFluid circulation: Pump

Implementation Method 3

The secondary machine heat exchanger is connected to the third working medium in the liquid storage tank through the delivery pump and a connecting pipe

Methodology Applied
Scientific EffectHeat transfer: Heat Exchanger

Implementation Method 4

The secondary machine heat exchanger is connected to the third working medium in the liquid storage tank through the delivery pump and a connecting pipe

Methodology Applied
Scientific EffectFluid circulation: Pump

Implementation Method 5

the secondary machine fan acts on the secondary machine heat exchanger

Methodology Applied
Scientific EffectForced convection: Fan

Implementation Method 6

The primary machine is mainly composed of a compressor, a condenser, a throttling device, and an evaporator that are sequentially cyclically connected through a pipeline

Methodology Applied
Scientific EffectGas compression: Gas Compressor

Implementation Method 7

The primary machine is mainly composed of a compressor, a condenser, a throttling device, and an evaporator that are sequentially cyclically connected through a pipeline

Methodology Applied
Scientific EffectCondensation: Condensation

Implementation Method 8

The primary machine is mainly composed of a compressor, a condenser, a throttling device, and an evaporator that are sequentially cyclically connected through a pipeline

Methodology Applied
Scientific EffectPressure reduction: Thermal Expansion

Data Source

PatentEP4306857B1Buffering and balancing type mobile primary-secondary air conditioning system
Publication Date: 2025.10.08 NANTONG HENGZHAO ELECTRIC APPLIANCE CO LTD
  • EP4306857B1 patent drawingFigure 1
  • EP4306857B1 patent drawingFigure 2

AI summary

A buffered balanced type mobile primary-secondary air conditioner system, consisting of a primary machine and at least one mobile secondary machine, characterized in that three working media are used in primary-secondary air conditioner system. The first working medium is a compressor refrigeration working medium, the second working medium is an energy storage and heat transfer working medium shared by the primary machine and the secondary machine, and the third working medium is a secondary machine energy storage and heat transfer working medium. This scheme establishes a buffer balance zone between the primary machine and the secondary machine to store the second working medium. Taking refrigeration as an example, cooling capacity generated by the primary machine is directly transferred to the buffer balance zone through the evaporator for transition, and then the cooling capacity of the buffer balance zone is transmitted to the third working medium of the secondary machine through the detachable connector and the energy storage heat exchanger in the secondary machine. Due to the buffer balance zone of the present invention serving as a bridge for buffer balance in a one-primary-to-multiple-secondary air conditioner system (one primary machine to multiple secondary machine), it effectively solves the problem how to get a mobile air conditioner without installation requirement, moved freely, energy-efficient, and with low noise.