Air conditioner heat-radiating circulation system
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air conditioner heat-radiating systems face inefficiencies in heat dissipation during summer due to high outdoor temperatures and waste heat in winter, leading to reduced operational stability and service life.
Innovation Solution
An air conditioner heat-radiating circulation system utilizing a flat tube micro-channel aluminum-based radiator and low-temperature, low-pressure refrigerant gas to dissipate heat from key modules, with a refrigerating circulation branch and temperature sensors to control electromagnetic valves, ensuring efficient heat absorption and recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a serrated aluminum-based radiator is used for heat dissipation in summer, then heat can be dissipated into surrounding air, but heat-radiating effect becomes unsatisfactory when outdoor temperature is high (40°C-50°C)
Solution Approach 1:
The patent introduces a refrigerant circulation system as an intermediary heat transfer medium. Instead of directly dissipating heat from power modules to ambient air, the system uses refrigerant to absorb heat from power modules, transport it through expansion valves and heat exchange channels, and release it to the environment, thereby overcoming the limitation of direct air convection at high temperatures
Solution Approach 2:
The patent employs a refrigerant fluid circulation system with pumps, expansion valves, and heat exchange channels to actively transport thermal energy. The refrigerant undergoes phase changes and pressure variations to efficiently transfer heat from power modules to the environment, replacing passive air convection with an active fluid-based heat transfer system
2Loss of energy
If a serrated aluminum-based radiator is used, then heat can be dissipated by air convection, but heat produced by power modules cannot be recycled when used for heating in winter
Solution Approach 1:
The patent creates a multi-functional heat exchange system that serves both cooling and heating purposes. The refrigerant circulation system can operate in reverse mode, absorbing heat from the environment in winter and transferring it to power modules and the air conditioner, thereby recycling waste heat and providing space heating functionality
Solution Approach 2:
The patent utilizes phase changes of refrigerant (liquid-gas transitions) and adjustable expansion valve openings to control heat transfer direction and efficiency. By changing refrigerant pressure, temperature, and flow rate parameters, the system adapts to different seasonal requirements and optimizes heat recycling performance
3Area of stationary object
If a flat tube micro-channel aluminum-based radiator is used, then heat-radiating area is increased and volume is reduced, but system complexity increases with additional refrigerant circulation components
Solution Approach 1:
The patent integrates the heat exchange channels directly within the power module housing structure. The refrigerant circulation system is nested within the existing air conditioner framework, with heat exchange channels positioned in close proximity to power modules, thereby increasing heat transfer area without proportionally increasing overall system volume or complexity
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
Enhances heat-radiating efficiency in summer and recycles heat for improved heating in winter, maintaining optimal operating temperatures and extending the service life of air conditioning units.
Implementation Method 1
heat is absorbed from the power module, the variable-frequency compressor driving module and a variable-frequency blower driving module
Implementation Method 2
heat is absorbed from the power module, the variable-frequency compressor driving module and a variable-frequency blower driving module
Implementation Method 3
dissipated into the surrounding air by means of air convection and a little natural radiation
Data Source
AI summary
Disclosed is an air conditioner heat-radiating circulation system, comprising a compressor (1). A discharge pipe of the compressor (1) is connected to a four-way reversing valve (2), which is connected to an outdoor heat exchanger (4) that is connected to an indoor heat exchanger (10) via an electronic expansion valve (11), the indoor heat exchanger (10) is connected to a stop value (3) that is connected to a gas suction pipe of the compressor (1) via the four-way reversing valve (2), the gas suction pipe is provided with a refrigerating circulation branch, which includes a branch electromagnetic valve (5) that is connected to a flat tube micro-channel aluminum-based radiator (6) with a temperature sensor (8); the gas suction pipe is further provided with a gas suction electromagnetic valve (7) that is connected in parallel to the branch electromagnetic valve (5).