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 Introduction to

Patent for Liquid Cooled Air Conditioning

Traditional household air conditioners commonly use the external fan air cooling mode for heat dissipation, which leads to common industry problems such as poor heat dissipation during high temperature weather, easy high-temperature protection shutdown of compressors, high operating noise and vibration, significant cooling attenuation, easy dripping and wall soaking of condensate water when discharged, and short service life of the entire machine. Zhongsong independently developed patented liquid cooled closed-loop cooling air conditioning technology, relying on a condensed water self circulating liquid cooled cooling system and a polymer phase change vibration reduction and noise reduction structure, completely changing the traditional single air-cooled cooling mode. Without the need for an external water source, the closed-loop liquid cooling heat dissipation is achieved by utilizing the condensation water generated by the air conditioner itself, solving the pain points of high temperature shutdown, loud noise, high power consumption, easy dripping, and short lifespan of the air conditioner from the root, comprehensively improving the cooling stability, energy efficiency, and quietness of the air conditioner.

This technology is an exclusive utility model patent technology of Zhongsong, covering core structures such as closed-loop water circulation heat dissipation, vibration reduction and noise reduction, self-cleaning heat exchange, etc. It is an innovative upgrade solution for air cooling to liquid cooling in the household air conditioning industry, suitable for all scenarios of household and commercial use.

Core working principle of Zhongsong liquid cooled air conditioner

Zhongsong liquid cooling patented air conditioner abandons the traditional single air cooling mode and adopts a self-produced condensate closed-loop liquid cooling heat dissipation system, combined with a polymer phase change vibration reduction and noise reduction structure, forming a dual heat dissipation system with water cooling as the main and air cooling as the auxiliary. The whole process is automatically circulated, without manual intervention or external water source. The entire system consists of three main parts: a closed-loop liquid cooling circulation system for condensed water, a polymer liquid-solid phase change vibration reduction and cooling structure, and a multiple silent vibration reduction and protection structure. Together, they achieve efficient heat dissipation, silent operation, constant temperature control, and water-saving and drip prevention effects.

（1） Condensed water closed-loop liquid cooling heat dissipation system (core patent)

When the air conditioner is working normally for cooling, the indoor evaporator will naturally produce condensation water through cold and hot exchange. Through a dedicated sealed guide pipeline, all the condensation water generated indoors will be drained to the sealed water collection bin of the outdoor unit for storage, and the entire process will be enclosed and transported without overflow or leakage. The external unit water collection bin is equipped with a silent micro water pump. After the air conditioner is turned on, the water pump automatically starts and stops, and the collected room temperature condensed water is transported to the spiral surrounding cooling pipeline that wraps around the compressor housing.

The low-temperature cold water flows tightly against the outer wall of the compressor throughout the entire process, taking away the high-temperature heat generated by the high-speed operation of the compressor in all directions, continuously suppressing the working temperature of the compressor, and avoiding high-temperature accumulation. After absorbing heat, the warm water will be automatically transported to the fin area of the external condenser for spray assisted heat dissipation, greatly improving the heat transfer speed of the condenser and reducing the overall operating load of the machine. After heat dissipation and cooling, the water flows back to the bottom collection bin, forming a closed, circulating, and reciprocating liquid cooling system, continuously cooling and dissipating the entire machine.

The entire system relies on the condensation water generated by the air conditioner itself to be self-sufficient, without the need for external tap water or manual water addition, and operates in a fully automatic closed-loop system. The system comes with intelligent temperature control logic, which can automatically adjust the water circulation speed according to the ambient temperature and unit load, always controlling the compressor temperature within a reasonable range, and eliminating high-temperature thermal protection problems.

（2） Polymer liquid-solid phase transition vibration reduction and cooling structure

The Zhongsong liquid cooled air conditioner is equipped with a dedicated polymer phase change energy storage damping material on the outer layer of the compressor housing and cooling pipeline. This material can quickly soften when in contact with water, forming a flexible thermal conductive buffer layer that fits the entire compressor. Compared to traditional ordinary soundproof cotton, its thermal conductivity, adhesion, and vibration reduction effect are greatly improved.

Flexible materials can fully wrap the compressor, effectively absorbing high-frequency vibrations generated during compressor operation, buffering vibrations transmitted outward, and reducing mechanical resonance noise from the sound source. At the same time, the material has the characteristics of cold storage and release, which can stabilize the working temperature of the compressor, balance the thermal load of the whole machine, avoid the operation fluctuations caused by temperature fluctuations, and make the air conditioning run more smoothly and quietly.

（3） Multiple silent and shock-absorbing protective structures

In addition to the liquid cooled noise reduction structure, the entire machine is equipped with multiple silent designs. The bottom of the compressor is equipped with thickened high elasticity shock-absorbing rubber pads, which effectively isolate the vibration of the compressor from being transmitted to the outer casing, avoiding abnormal noise caused by body resonance. The interior of the external unit is fully covered with flame-retardant and environmentally friendly soundproof cotton, which absorbs fan wind noise, pipeline airflow noise, and mechanical operation noise in all directions. At the same time, the liquid cooling system significantly reduces the working temperature of the compressor, reduces the heat dissipation pressure, and eliminates the need for high-speed and high load operation of the external fan. The fan speed is reasonably reduced, further reducing wind noise and achieving deep silent operation of the entire machine.

Complete operation process of liquid cooling system

After the air conditioner is turned on for cooling, temperature difference condensation occurs in the indoor evaporator, resulting in the precipitation of condensed water. The water is automatically transported to the external unit's water collection bin for storage through an independent sealed guide pipeline, quickly establishing a liquid cooling and heat dissipation water source. After the water source stabilizes, the silent water pump automatically starts, and the low-temperature condensed water circulates and exchanges heat around the outer wall of the compressor along the spiral pipeline, continuously taking away the high temperature of the compressor and achieving precise cooling. After absorbing heat, the warm water automatically sprays the condenser fins to assist the external unit in rapid heat dissipation and improve the overall heat exchange efficiency of the machine.
After heat exchange and cooling, the water flow automatically flows back to the collection bin, forming an uninterrupted closed-loop water circulation that continuously cools down the entire machine. At the same time, the polymer phase change material softens and adheres to the body when it comes into contact with water, buffering vibration and absorbing noise. The multiple silent structures work synchronously to ensure the smooth and low-noise operation of the entire machine. In environments with dry air and insufficient water production, the system intelligently switches the cooling mode, retaining the basic air cooling cooling without affecting the normal cooling and heating effect of the air conditioner. After the air conditioner is turned off, the system will perform a short-term self circulation of the water circuit to drain the residual water in the pipeline, avoid the growth of mold and blockage of the pipeline due to water accumulation, achieve automatic maintenance, and extend the service life of water circuit components.

Patent core technology advantages


Firstly, prevent high-temperature shutdown and ensure long-lasting and stable cooling. Liquid cooled heat dissipation can sustainably suppress the working temperature of the compressor. In the extreme high temperature exposure environment of over 40 degrees Celsius in summer, the external unit can still operate continuously and stably without triggering high-temperature thermal protection, completely solving the problems of traditional air conditioning high-temperature shutdown, cooling attenuation, and slow cooling.
Secondly, it is efficient and energy-saving, with long-lasting energy efficiency without degradation. The heat exchange efficiency of water cooling is much higher than that of traditional air cooling, and the overall heat exchange efficiency of the machine is greatly improved. The operating load of the compressor is significantly reduced, effectively reducing the overall power consumption of the machine. Long term use will not cause energy efficiency degradation issues and will always maintain a high energy efficiency and low energy consumption operating state.
Thirdly, extend the service life of the compressor. The compressor operates smoothly at low temperatures for a long time, and the internal lubricating oil is not easily acidified or deteriorated. The aging speed of the motor coil is significantly slowed down, effectively reducing problems such as cylinder jamming, burning, and failure shutdown. The service life of the entire machine is greatly improved.
Fourthly, it operates with strong quietness and low noise. By combining multiple technologies such as liquid buffering shock absorption, polymer material shock absorption, low-speed fan noise reduction, and cavity sound insulation, the external machine's operating noise is significantly reduced, eliminating high-frequency abnormal noise and resonance noise, and running quietly day and night without disturbing the public.
Fifth, thoroughly solve the hidden danger of indoor dripping. All condensed water from the air conditioner is recycled for external unit heat dissipation, and is no longer discharged into the indoor environment. This fundamentally eliminates problems such as wall mold, ceiling soaking, and home decoration damage caused by blocked or leaking drainage pipes.
Sixth, self-sufficient zero cost use. The entire liquid cooling system relies on the circulation of condensed water generated by the air conditioner itself, without the need for external tap water, additional consumables, and no subsequent usage costs. It is green, energy-saving, and environmentally friendly.
Seventh, both cold and hot performance have been improved. In summer, cooling and heat dissipation are faster and cooling is more uniform. In winter, the melted water generated by heating and defrosting can participate in the circulation, assisting the compressor to start at low temperatures. In severe cold environments, heating is more stable, defrosting is faster, and heating efficiency is higher.
Eighth, avoid frequent cleaning and maintain easily. The continuous flushing of the condenser fins by the circulating water flow can effectively remove dust and flocculent substances, reduce the accumulation of dust on the external unit, delay the aging of the fins, significantly extend the cleaning cycle of the external unit, and reduce maintenance costs in the later stage.

Applicable scenarios


This liquid cooled patented air conditioning technology is suitable for all scenarios of household and commercial environments, especially for high-rise residential buildings where the outdoor unit is exposed to long-term sunlight and severe exposure to the west, completely solving the problem of high temperature shutdown in summer. Suitable for bedroom, street facing, and nearby outdoor residents, meeting the needs of low-noise and quiet living. Suitable for high-end home decoration, suspended ceilings, and expensive wall decoration scenes, to eliminate the risk of condensation water leaking and soaking the walls. At the same time, it is suitable for low-temperature areas in the north, improving winter heating stability, and is also suitable for commercial scenarios such as shops, offices, and factories that require long-term uninterrupted operation all day long. Its durability and energy-saving advantages are significant.

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