CN117870032A - Frequency conversion multi-link hoisting full air system - Google Patents

Abstract

The present invention relates to the technical field of air conditioning systems, and discloses a variable frequency multi-connected ceiling-mounted full air system, including an outdoor condensing unit and a plurality of indoor evaporative dehumidification units, characterized in that: the outdoor condensing unit and the plurality of indoor evaporative dehumidification units adopt a multi-connected design, each of the indoor evaporative dehumidification units is electrically connected to a sub-control panel, and the plurality of sub-control panels are electrically connected to a seven-inch central control screen. The variable frequency multi-connected ceiling-mounted full air system facilitates intelligent zoning control through a seven-inch central control screen and a plurality of sub-control panels, and performs more precise temperature and humidity adjustment. Compared with the traditional fixed frequency system, the variable frequency multi-connected ceiling-mounted full air system can operate more efficiently, reduce energy consumption and operating costs. The system adopts a multi-connected design, that is, dividing the indoor space into a plurality of areas, so that the system can adjust the temperature and air volume of each area according to specific needs, and realize personalized comfort control.

Description

Frequency conversion multi-link hoisting full air system

Technical Field

The invention relates to the technical field of air conditioning systems, and in particular to a variable frequency multi-connected hoisting type full air system.

Background technique

An air conditioning system is a device system used to regulate indoor temperature, humidity and air quality. It usually consists of multiple components, including a refrigeration unit, an air supply system, a control system and an exhaust system. The working principle of the air conditioning system is to transfer heat from indoors to outdoors through the refrigeration unit to reduce the indoor air temperature, and then send the cold air into the room through the air supply system to achieve the effect of regulating the indoor temperature.

At present, traditional air conditioning systems can only provide overall temperature regulation and cannot meet the personalized needs of different areas. In addition, traditional air conditioning systems also have certain limitations in dehumidification effects. Therefore, a new type of air conditioning system is needed to solve these problems.

Summary of the invention

In view of the above technical deficiencies, the purpose of the present invention is to provide a variable frequency multi-connected ceiling-mounted full air system, which achieves high efficiency and energy saving, personalized control and a clean and healthy indoor environment through variable frequency technology, multi-connected design and ceiling-mounted motion. It is widely used in buildings and office spaces, improves indoor air quality and provides a comfortable indoor environment.

In order to solve the above technical problems, the present invention provides the following technical solutions:

A variable frequency multi-connected suspended full air system, comprising an outdoor condensing unit and a plurality of indoor evaporative dehumidification units, wherein the outdoor condensing unit and the plurality of indoor evaporative dehumidification units are of a multi-connected design, each of the indoor evaporative dehumidification units is electrically connected to a sub-control panel, and the plurality of sub-control panels are electrically connected to a seven-inch central control screen;

The outdoor condensing unit is an air conditioner main unit, and the air conditioner main unit includes a condenser and a compressor;

The outdoor condensing unit and the multiple indoor evaporative dehumidification units use a third reheat pipe to recover the waste heat of the outdoor unit for heating the ultra-low temperature air after dehumidification. It has independent temperature, humidity and airflow control technology, can process 100% fresh air, and provide personalized heating, cooling and dehumidification of fresh air for use in different areas;

Each of the indoor units has an independent refrigerant pipe connected to the outdoor unit of the air conditioner. The multi-connection design enables the system to adjust the temperature and air volume of each area according to specific needs, achieving personalized comfort control;

The indoor evaporative dehumidification unit is an indoor unit, which includes an equipment housing, one end of which is respectively provided with a fresh air inlet and a return air inlet, a fresh air valve is provided inside the fresh air inlet, a blower is installed inside the fresh air inlet, and an air outlet is installed at the other end of the equipment housing, and a heat exchange coil, a post-evaporation temperature sensor, and a reheat coil are sequentially installed between the blower and the air outlet;

A primary filter, a medium filter, a high-efficiency filter, and a control component are sequentially installed on the inside of the fresh air outlet; a system copper tube is installed near the air outlet of the equipment housing; a main throttle valve, a one-way valve, and a reheat valve are installed inside the system copper tube; and a UV lamp is installed on the outside of the system copper tube;

A control terminal is installed outside the device housing, a low-voltage interface, a high-voltage interface, and a reheat interface are arranged on one side of the control terminal, a drain port is arranged outside the device housing, a negative ion port is arranged inside the drain port, and a temperature and humidity sensor is arranged outside the negative ion port.

Through the above technical solution, the multi-split system includes an outdoor condensing unit and multiple indoor evaporative dehumidification units. The seven-inch central control screen and multiple sub-control panels facilitate intelligent zoning control and more precise temperature and humidity adjustment. Compared with the traditional fixed frequency system, the variable frequency multi-split ceiling-mounted full-air system can operate more efficiently and reduce energy consumption and operating costs.

The system adopts a multi-connection design, which divides the indoor space into multiple areas, and each area is equipped with an independent fan coil unit. Each fan coil unit is connected to the centralized air conditioning host outdoor unit system to adjust the indoor temperature by circulating air. This multi-connection design enables the system to adjust the temperature and air volume of each area according to specific needs, and realize personalized comfort control. At the same time, through regional control, the operation of the entire system can be avoided and energy consumption can be reduced. Through the system's unique patented temperature control and dehumidification technology, the third reheat pipe with which the waste heat of the outdoor unit is recovered is used for ultra-low temperature air heating after dehumidification. It has independent temperature, humidity, and airflow control technology, can handle 100% fresh air, and provide personalized heating, cooling and dehumidification of fresh air for use in different areas. Each indoor unit has an independent set of refrigerant pipes connected to the outdoor unit, which reduces the cumbersome installation of large pipes and is convenient for the use of villas and large flats.

Through the operation of the compressor, high-temperature and high-pressure gas is discharged from the exhaust port, enters the condenser for cooling, and becomes low-temperature and high-pressure gas. It is intercepted by the capillary and becomes low-temperature and low-pressure liquid. It evaporates and absorbs heat through the evaporator and returns to the compressor to become low-temperature and low-pressure gas, and the cycle repeats itself.

In order to save energy, multiple outdoor units are combined with a large outdoor unit to achieve wide-range adjustment of cooling and dehumidification capabilities. It can also meet the requirement of delivering 6-8G of dry air into the room when fresh air is supplied. The air supply temperature can be adjusted from 6 to 35 degrees when cooling and from 25 to 45 degrees when heating. It also bears the indoor heat load and reduces the power consumption of the air conditioner. The system can effectively achieve full-house air replacement and rapid switching between cooling and heating, thereby protecting the health of you and your family.

Preferably, a fresh air temperature sensor is installed inside the fresh air outlet, and a return air temperature sensor is installed inside the return air outlet.

Preferably, the frequency conversion principle of the system is to use a DC speed-regulating compression motor, which uses a three-phase four-pole DC brushless motor to generate electromagnetic torque through interaction with the rotor magnet to achieve frequency conversion control of the air conditioner.

Through the above technical solution, the DC speed-regulating compression motor adopts a three-phase four-pole DC brushless motor, the stator structure of which is the same as that of an ordinary three-phase induction motor, and the rotor adopts a four-pole permanent magnet. When the air conditioner is working, the frequency conversion module provides DC current to the stator side of the DC motor to form a magnetic field, and the magnetic field interacts with the rotor magnet to generate electromagnetic torque.

Since the rotor of the DC variable frequency compressor does not require secondary current, it has low loss, high power factor (its efficiency is 10% to 30% higher than that of the AC variable frequency compressor), 5 to 10 dB lower noise, and a lower voltage during startup. It can be started under low voltage and low temperature conditions. This can improve the situation in some areas where air conditioners are difficult to start due to unstable voltage or low indoor temperature in winter.

Preferably, the dehumidification principle of the system is achieved through the action of the air path and the refrigerant path; the air path passes through the air inlet, primary and medium efficiency filtration, and then passes through the evaporator to be cooled, the temperature drops to below the dew point to precipitate water, and then passes through the condenser, the wind temperature rises, and the relative humidity decreases, and after negative ion purification and UV sterilization, it enters the area that needs dehumidification. The refrigerant path, through the operation of the compressor, cools the high-temperature and high-pressure gas through the condenser to become low-temperature and high-pressure gas, which is intercepted by the capillary to become a low-temperature and low-pressure liquid, evaporates and absorbs heat through the evaporator, and returns to the compressor to become a low-temperature and low-pressure gas, realizing a reciprocating cycle.

Preferably, the system is equipped with a fresh air belt valve, which can be opened and closed manually or automatically. The outdoor fresh air and indoor return air are filtered through primary, medium and high efficiency, and then passed through the surface cooler, evaporator, condenser and wet film treatment before being sent to different areas.

Preferably, the system is equipped with a surface cooling coil, which provides cooling through a low-temperature 7°C water source, reduces the air temperature in the coil, removes moisture, and then drips into the water pan to guide to the drain pipe. Dry cold air continues to be delivered to the room, and the coil return water returns to the water tank through the 12°C water flow to achieve a continuous dehumidification process.

Through the above technical scheme, the product of the present invention uses an air-cooled heat pump to provide a low-temperature 7°C water source. After the 7-degree water enters the coil, the air is cooled to below the dew point, the temperature is reduced, and the moisture is removed. Then the water condenses on the surface of the coil and drips into the water pan to be directly guided to the drain pipe. At this time, the dry cold air continues to be sent to the room through the fan to obtain the reduced dry air. The return water of the coil will be raised to 12°C and returned to the water tank. This process continues, and the heat pump continues to work until the indoor conditions meet the required conditions. During this dehumidification process, the indoor temperature will continue to decrease. If the air needs to be heated again, a heat coil or a heat regenerator needs to be added. The advantage is that a surface cooling coil is built in. The surface cooling uses a low-temperature cold source of 7°C, a wide operating range, and very few failure points. In principle, the air supply temperature cannot be adjusted to 12-14°C.

Preferably, the system is equipped with a wet membrane to realize a humidification function. When humidification is required, the humidification water supply valve is opened to moisten the wet membrane, and the dry wind passes through the moistened wet membrane to complete the humidification of the dry incoming air.

Preferably, the system can be linked with an exhaust fan to achieve air circulation and improve exhaust effect.

Preferably, the system is equipped with intelligent control function, supports standard 485 protocol, and can be used in conjunction with intelligent control equipment to provide intelligent operation and control.

Compared with the prior art, the beneficial effects achieved by the present invention are:

First, the multi-connected system of the present invention includes an outdoor condensing unit and multiple indoor evaporative dehumidification units. The seven-inch central control screen and multiple sub-control panels facilitate intelligent zoning control and more accurate temperature and humidity adjustment. Compared with the traditional fixed frequency system, the variable frequency multi-connected hanging full air system can operate more efficiently and reduce energy consumption and operating costs. The system adopts a multi-connected design, that is, the indoor space is divided into multiple areas, each area is equipped with an independent fan coil. Each fan coil is connected to the centralized air conditioning host outdoor unit system to adjust the indoor temperature by circulating air. This multi-connected design enables the system to adjust the temperature and air volume of each area according to specific needs to achieve personalized comfort control. At the same time, through regional control, the operation of the entire system can be avoided and energy consumption can be reduced. Through the system's unique patented temperature control and dehumidification technology, the third reheat pipe is used to recover the waste heat of the outdoor unit for ultra-low temperature air heating after dehumidification. It has independent temperature, humidity, and airflow control technology, can handle 100% of fresh air, and provide personalized heating, cooling and dehumidification of fresh air for use in different areas. Each indoor unit has an independent set of refrigerant pipes connected to the outdoor unit, which reduces the tedious installation of large pipelines and facilitates the use of villas and large flats.

Second, the present invention discharges high-temperature and high-pressure gas from the exhaust port through the operation of the compressor, enters the condenser for cooling, and becomes low-temperature and high-pressure gas, which is intercepted by the capillary and becomes low-temperature and low-pressure liquid, evaporates and absorbs heat through the evaporator, and returns to the compressor to become low-temperature and low-pressure gas, and the cycle repeats.

In order to save energy, multiple outdoor units are combined with a large outdoor unit to achieve a wide range of adjustment of cooling and dehumidification capabilities. It can also meet the demand of 6-8G dry air being delivered into the room when fresh air is supplied. The air supply temperature can be adjusted from 6 to 35 degrees during cooling and from 25 to 45 degrees during heating. It also bears the indoor heat load and reduces the power consumption of the air conditioner. The system can effectively realize whole-house air replacement and rapid switching between cooling and heating, thereby protecting the health of you and your family.

Third, the DC speed-regulating compression motor of the present invention adopts a three-phase four-pole DC brushless motor, the stator structure of which is the same as that of an ordinary three-phase induction motor, and the rotor adopts a four-pole permanent magnet. When the air conditioner is working, the frequency conversion module provides DC current to the stator side of the DC motor to form a magnetic field, and the magnetic field interacts with the rotor magnet to generate electromagnetic torque. Since the rotor of the DC variable frequency compressor does not require secondary current, the loss is small, the power factor is high (its efficiency is 10% to 30% higher than that of the AC variable frequency compressor), the noise is 5 to 10 dB lower, the voltage is small when starting, and it can be started under low voltage and low temperature conditions. This has a certain improvement effect on the situation in some areas where the air conditioner is difficult to start due to unstable voltage or low indoor temperature in winter.

Fourth, the dehumidification principle of the present invention is realized through the action of the air path and the refrigerant path; the air path passes through the air inlet, primary and medium efficiency filtration, and then passes through the evaporator to be cooled, the temperature is reduced to below the dew point to precipitate water, and then passes through the condenser, the wind temperature increases, and the relative humidity decreases. After negative ion purification and UV sterilization, it enters the area that needs dehumidification. The refrigerant path, through the operation of the compressor, cools the high-temperature and high-pressure gas through the condenser to become low-temperature and high-pressure gas, which is intercepted by the capillary to become a low-temperature and low-pressure liquid, evaporates and absorbs heat through the evaporator, and returns to the compressor to become a low-temperature and low-pressure gas, realizing a reciprocating cycle.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic structural diagram of one end of an indoor unit of the present invention;

FIG3 is a schematic diagram of the internal structure of the indoor unit of the present invention;

FIG4 is a schematic diagram of the upper structure of the indoor unit of the present invention;

FIG. 5 is a schematic diagram of the internal passage structure of the indoor unit of the present invention.

Among them: 1. Outdoor condensing unit; 2. Indoor evaporative dehumidification unit; 3. Air conditioner main unit; 4. Indoor unit; 5. Sub-control panel; 6. 7-inch central control screen; 101. Equipment shell; 102. Fresh air outlet; 103. Fresh air valve; 104. Return air outlet; 105. Air blower; 106. Water tray; 107. Heat exchange coil; 108. Post-evaporation temperature sensor; 109. Reheat coil; 110. Air outlet; 201. Temperature and humidity sensor; 2 02. Drain outlet; 203. Negative ion outlet; 204. Control terminal; 205. Low pressure interface; 206. High pressure interface; 207. Reheat interface; 301. Primary filter; 302. Medium efficiency filter; 303. High efficiency filter; 304. Control component; 305. System copper pipe; 306. Main throttle valve; 307. Check valve; 308. Reheat valve; 309. UV lamp; 401. Fresh air temperature sensor; 402. Return air temperature sensor.

Detailed ways

The specific implementation modes of the present invention will be further described in detail below with reference to the accompanying drawings.

Specific implementation method 1

The following is a specific implementation method of the variable frequency multi-connected ceiling mounted full air system.

Please refer to Figures 1-5.

The variable frequency multi-connected hanging full air system includes an outdoor condensing unit 1 and a plurality of indoor evaporative dehumidification units 2. The outdoor condensing unit 1 and the plurality of indoor evaporative dehumidification units 2 are multi-connected. Each indoor evaporative dehumidification unit 2 is electrically connected to a sub-control panel 5. The plurality of sub-control panels 5 are electrically connected to a seven-inch central control screen 6.

The outdoor condensing unit 1 is an air conditioner main unit outdoor unit 3, and the air conditioner main unit outdoor unit 3 includes a condenser and a compressor;

The third reheat pipe is used between the outdoor condensing unit 1 and the multiple indoor evaporative dehumidification units 2 to recover the waste heat of the outdoor unit for heating the ultra-low temperature air after dehumidification. It has independent temperature, humidity and airflow control technology, can process 100% fresh air, and provide personalized heating, cooling and dehumidification of fresh air for use in different areas;

The indoor evaporative dehumidification unit 2 is an indoor unit 4, which includes an equipment housing 101, a fresh air inlet 102 and a return air inlet 104 are respectively installed at one end of the equipment housing 101, a fresh air valve 103 is arranged inside the fresh air inlet 102, a blower 105 is installed inside the fresh air inlet 102, an air outlet 110 is installed at the other end of the equipment housing 101, and a heat exchange coil 107, a post-evaporation temperature sensor 108, and a reheat coil 109 are sequentially installed between the blower 105 and the air outlet 110;

A primary filter 301, a medium filter 302, a high-efficiency filter 303, and a control component 304 are sequentially installed inside the fresh air inlet 102. A system copper tube 305 is installed near the air outlet 110 of the equipment housing 101. A main throttle valve 306, a one-way valve 307, and a reheat valve 308 are installed inside the system copper tube 305. A UV lamp 309 is installed outside the system copper tube 305.

A fresh air temperature sensor 401 is installed inside the fresh air outlet 102, and a return air temperature sensor 402 is installed inside the return air outlet 104;

A control terminal 204 is installed outside the device housing 101, and a low-pressure interface 205, a high-pressure interface 206, and a reheat interface 207 are arranged on one side of the control terminal 204. A drain port 202 is arranged outside the device housing 101, and a negative ion port 203 is arranged inside the drain port 202. A temperature and humidity sensor 201 is arranged outside the negative ion port 203.

Each indoor unit 4 has an independent refrigerant pipe connected to the air conditioner main unit 3. The multi-connected design enables the system to adjust the temperature and air volume of each area according to specific needs, thereby achieving personalized comfort control.

Through the above technical solution, the multi-connected system includes an outdoor condensing unit 1 and multiple indoor evaporative dehumidification units 2, and facilitates intelligent zoning control through a seven-inch central control screen 6 and multiple sub-control panels 5, so as to perform more precise temperature and humidity adjustment.

The system adopts a multi-connection design, which divides the indoor space into multiple areas, and each area is equipped with an independent fan coil. Each fan coil is connected to the centralized air conditioning host outdoor unit 3 system to adjust the indoor temperature by circulating air. This multi-connection design enables the system to adjust the temperature and air volume of each area according to specific needs, and realize personalized comfort control. At the same time, through regional control, the operation of the entire system can be avoided and energy consumption can be reduced. Through the system's unique patented temperature control and dehumidification technology, the third reheat pipe with waste heat from the outdoor unit is used to heat the ultra-low temperature air after dehumidification. It has independent temperature, humidity, and airflow control technology, can handle 100% fresh air, and provide personalized heating, cooling and dehumidification of fresh air for use in different areas. Each indoor unit 4 has an independent set of refrigerant pipes connected to the outdoor unit, which reduces the cumbersome installation of large pipes and is convenient for the use of villas and large flats.

Through the operation of the compressor, high-temperature and high-pressure gas is discharged from the exhaust port, enters the condenser for cooling, and becomes low-temperature and high-pressure gas. It is intercepted by the capillary and becomes low-temperature and low-pressure liquid. It evaporates and absorbs heat through the evaporator and returns to the compressor to become low-temperature and low-pressure gas, and the cycle repeats itself.

In order to save energy, multiple outdoor units are combined with a large outdoor unit to achieve a wide range of adjustment of cooling and dehumidification capabilities. It can also meet the demand of 6-8G dry air being delivered into the room when fresh air is supplied. The air supply temperature can be adjusted from 6 to 35 degrees during cooling and from 25 to 45 degrees during heating. It also bears the indoor heat load and reduces the power consumption of the air conditioner. The system can effectively realize whole-house air replacement and rapid switching between cooling and heating, thereby protecting the health of you and your family.

Through the above technical solution, the external air enters the fresh air inlet 102, is filtered by the primary filter 301, the medium filter 302 and the high-efficiency filter 303, and then is cooled by the evaporator. The temperature drops to below the dew point to precipitate water. After passing through the condenser, the wind temperature increases and the relative humidity decreases. After negative ion purification and UV sterilization, the air enters the area that needs dehumidification, and this process is repeated.

Specifically, the frequency conversion principle of the system is to use a DC speed-regulating compression motor, which uses a three-phase four-pole DC brushless motor to generate electromagnetic torque through interaction with the rotor magnet to achieve frequency conversion control of the air conditioner.

Through the above technical solution, the DC speed-regulating compression motor adopts a three-phase four-pole DC brushless motor, the stator structure of which is the same as that of an ordinary three-phase induction motor, and the rotor adopts a four-pole permanent magnet. When the air conditioner is working, the frequency conversion module provides DC current to the stator side of the DC motor to form a magnetic field, and the magnetic field interacts with the rotor magnet to generate electromagnetic torque.

Since the rotor of the DC variable frequency compressor does not require secondary current, it has low loss, high power factor (its efficiency is 10% to 30% higher than that of the AC variable frequency compressor), 5 to 10 dB lower noise, and a lower voltage during startup. It can be started under low voltage and low temperature conditions. This can improve the situation in some areas where air conditioners are difficult to start due to unstable voltage or low indoor temperature in winter.

Specifically, the dehumidification principle of the system is achieved through the action of the air path and the refrigerant path; the air path passes through the air inlet, primary and medium efficiency filtration, and then passes through the evaporator to be cooled. The temperature drops to below the dew point to precipitate water. After passing through the condenser, the wind temperature rises and the relative humidity decreases. After negative ion purification and UV sterilization, it enters the area that needs dehumidification. The refrigerant path cools the high-temperature and high-pressure gas through the condenser through the operation of the compressor, and becomes a low-temperature and high-pressure gas. It is intercepted by a capillary and becomes a low-temperature and low-pressure liquid. It evaporates and absorbs heat through the evaporator, and returns to the compressor to become a low-temperature and low-pressure gas, realizing a reciprocating cycle.

Specifically, the system is equipped with a fresh air valve, which can be opened and closed manually or automatically. The outdoor fresh air and indoor return air are filtered through primary, medium and high efficiency, and then passed through the surface cooler, evaporator, condenser and wet film treatment before being sent to different areas.

Specifically, the system is equipped with a surface cooling coil, which provides cooling through a low-temperature 7°C water source, reduces the air temperature in the coil, removes moisture, and then drips into the water pan 106 to guide to the drain pipe. Dry cold air continues to be delivered to the room, and the coil return water flows back to the water tank through the 12°C water flow, realizing a continuous dehumidification process.

Through the above technical scheme, the product of the present invention uses an air-cooled heat pump to provide a low-temperature 7°C water source. After the 7-degree water enters the coil, the air is cooled to below the dew point, the temperature is reduced, and the moisture is removed. Then the water condenses on the surface of the coil and drips into the water tray 106 to be directly guided to the drain pipe. At this time, the dry cold air continues to be sent to the room through the fan to obtain the reduced dry air. The return water of the coil will be raised to 12°C and returned to the water tank. This process continues, and the heat pump continues to work until the indoor conditions meet the required conditions. During this dehumidification process, the indoor temperature will continue to decrease. If the air needs to be heated again, a heat coil or a heat regenerator needs to be added. The advantage is that a surface cooling coil is built in. The surface cooling uses a low-temperature cold source of 7°C, a wide operating range, and very few failure points. In principle, the air supply temperature cannot be adjusted to 12-14°C.

Specifically, the system is equipped with a wet membrane to realize a humidification function. When humidification is required, the humidification water supply valve is opened to moisten the wet membrane, and the dry wind passes through the moistened wet membrane to complete the humidification of the dry incoming air.

Specifically, the system can be linked with the exhaust fan to achieve air circulation and improve the exhaust effect.

Specifically, the system is equipped with intelligent control function, supports standard 485 protocol, and can be used in conjunction with intelligent control equipment to provide intelligent operation and control.

When in use, the seven-inch central control screen 6 and multiple sub-control panels 5 facilitate intelligent zoning control and more accurate temperature and humidity adjustment. Compared with the traditional fixed frequency system, the variable frequency multi-linked hanging full air system can operate more efficiently and reduce energy consumption and operating costs. The system adopts a multi-link design, that is, the indoor space is divided into multiple areas, each area is equipped with an independent fan coil. Each fan coil is connected to the centralized air conditioning host outdoor unit 3 system to adjust the indoor temperature by circulating air. This multi-link design enables the system to adjust the temperature and air volume of each area according to specific needs to achieve personalized comfort control. At the same time, through regional control, the operation of the entire system can be avoided and energy consumption can be reduced. Through the system's unique patented temperature control and dehumidification technology, the third reheat pipe is used to recover the waste heat of the outdoor unit for ultra-low temperature air heating after dehumidification. It has independent temperature, humidity, and airflow control technology, can handle 100% fresh air, and provide personalized heating, cooling and dehumidification of fresh air for use in different areas. Each indoor unit 4 has an independent set of refrigerant pipes connected to the outdoor unit, which reduces the tedious installation of large pipelines and facilitates the use of villas and large flats.

Through the operation of the compressor, high-temperature and high-pressure gas is discharged from the exhaust port, enters the condenser for cooling, and becomes low-temperature and high-pressure gas. It is intercepted by the capillary and becomes low-temperature and low-pressure liquid. It evaporates and absorbs heat through the evaporator and returns to the compressor to become low-temperature and low-pressure gas, and the cycle repeats itself.

In order to save energy, multiple outdoor units are combined with a large outdoor unit to achieve a wide range of adjustment of cooling and dehumidification capabilities. It can also meet the demand of 6-8G dry air being delivered into the room when fresh air is supplied. The air supply temperature can be adjusted from 6 to 35 degrees during cooling and from 25 to 45 degrees during heating. It also bears the indoor heat load and reduces the power consumption of the air conditioner. The system can effectively realize whole-house air replacement and rapid switching between cooling and heating, thereby protecting the health of you and your family.

The DC speed regulating compression motor of the present invention adopts a three-phase four-pole DC brushless motor, the stator structure of which is the same as that of an ordinary three-phase induction motor, and the rotor adopts a four-pole permanent magnet. When the air conditioner is working, the frequency conversion module provides DC current to the stator side of the DC motor to form a magnetic field, and the magnetic field interacts with the rotor magnet to generate electromagnetic torque. Since the rotor of the DC variable frequency compressor does not need secondary current, the loss is small, the power factor is high (its efficiency is 10% to 30% higher than that of the AC variable frequency compressor), the noise is 5 to 10 dB lower, the voltage is small when starting, and it can be started under low voltage and low temperature conditions. This has a certain improvement effect on the situation in some areas where the air conditioner is difficult to start due to unstable voltage or low indoor temperature in winter.

The dehumidification principle of the present invention is realized through the action of the air path and the refrigerant path; the air path passes through the air inlet, primary and medium efficiency filtration, and then passes through the evaporator to be cooled, the temperature is reduced to below the dew point to precipitate water, and then passes through the condenser, the wind temperature increases, and the relative humidity decreases, and after negative ion purification and UV sterilization, it enters the area that needs dehumidification. The refrigerant path, through the operation of the compressor, cools the high-temperature and high-pressure gas through the condenser to become low-temperature and high-pressure gas, and is intercepted by a capillary to become a low-temperature and low-pressure liquid, evaporates and absorbs heat through the evaporator, and returns to the compressor to become a low-temperature and low-pressure gas, realizing a reciprocating cycle.

Specific implementation method 2

The following is a specific implementation of the outdoor condensing unit 1 of the variable frequency multi-connected ceiling-mounted all-air system.

The outdoor condensing unit 1 of the variable frequency multi-connected ceiling-mounted all-air system in this embodiment is an air-conditioning main unit outdoor unit 3, and the air-conditioning main unit outdoor unit 3 includes a condenser and a compressor.

Through the operation of the compressor, high-temperature and high-pressure gas is discharged from the exhaust port, enters the condenser for cooling, and becomes low-temperature and high-pressure gas. It is intercepted by the capillary and becomes low-temperature and low-pressure liquid. It evaporates and absorbs heat through the evaporator and returns to the compressor to become low-temperature and low-pressure gas, and the cycle repeats itself.

Specific implementation method three

The following is a specific implementation of the indoor evaporative dehumidification unit 2 of the variable frequency multi-connected ceiling-mounted full air system.

The indoor evaporative dehumidification unit 2 of the variable frequency multi-connected ceiling-mounted full air system in this embodiment is an indoor unit 4, which includes an equipment housing 101, and a fresh air inlet 102 and a return air inlet 104 are respectively installed at one end of the equipment housing 101, a fresh air valve 103 is arranged inside the fresh air inlet 102, and a blower 105 is installed inside the fresh air inlet 102, and an air outlet 110 is installed at the other end of the equipment housing 101, and a heat exchange coil 107, a post-evaporation temperature sensor 108, and a reheat coil 109 are sequentially installed between the blower 105 and the air outlet 110;

A primary filter 301, a medium filter 302, a high-efficiency filter 303, and a control component 304 are sequentially installed inside the fresh air inlet 102. A system copper tube 305 is installed near the air outlet 110 of the equipment housing 101. A main throttle valve 306, a one-way valve 307, and a reheat valve 308 are installed inside the system copper tube 305. A UV lamp 309 is installed outside the system copper tube 305.

A fresh air temperature sensor 401 is installed inside the fresh air outlet 102, and a return air temperature sensor 402 is installed inside the return air outlet 104;

A control terminal 204 is installed on the outside of the device housing 101, and a low-pressure interface 205, a high-pressure interface 206, and a reheat interface 207 are arranged on one side of the control terminal 204. A drain outlet 202 is arranged on the outside of the device housing 101, a negative ion outlet 203 is arranged inside the drain outlet 202, and a temperature and humidity sensor 201 is arranged outside the negative ion outlet 203.

The dehumidification principle of the present invention is realized through the functions of the air path and the refrigerant path; the air path passes through the air inlet, primary and secondary filtration, and then passes through the evaporator to be cooled, the temperature is reduced to below the dew point to precipitate water, and then passes through the condenser, the wind temperature increases, and the relative humidity decreases, and after negative ion purification and UV sterilization, it enters the area that needs dehumidification. The refrigerant path, through the operation of the compressor, cools the high-temperature and high-pressure gas through the condenser to become low-temperature and high-pressure gas, and is intercepted by a capillary to become a low-temperature and low-pressure liquid, evaporates and absorbs heat through the evaporator, and returns to the compressor to become a low-temperature and low-pressure gas, realizing a reciprocating cycle.

Although specific embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. A variable frequency multi-connected suspended all-air system, comprising an outdoor condensing unit (1) and a plurality of indoor evaporative dehumidification units (2), characterized in that: the outdoor condensing unit (1) and the plurality of indoor evaporative dehumidification units (2) are of multi-connected design, each of the indoor evaporative dehumidification units (2) is electrically connected to a sub-control panel (5), and the plurality of sub-control panels (5) are electrically connected to a seven-inch central control screen (6); The outdoor condensing unit (1) is an air conditioner main unit outdoor unit (3), and the air conditioner main unit outdoor unit (3) comprises a condenser and a compressor; The outdoor condensing unit (1) and the plurality of indoor evaporative dehumidification units (2) are connected via a third reheat pipe to recover the waste heat of the outdoor unit for heating the ultra-low temperature air after dehumidification. The unit has independent temperature, humidity and airflow control technology, can process 100% fresh air, and provide personalized heating, cooling and dehumidification of fresh air for use in different areas; Each of the indoor units (4) has an independent refrigerant pipeline connected to the air conditioner main unit (3). The multi-connection design enables the system to adjust the temperature and air volume of each area according to specific needs, thereby achieving personalized comfort control; The indoor evaporative dehumidification unit (2) is an indoor unit (4), the indoor unit (4) comprising a device housing (101), one end of the device housing (101) being respectively provided with a fresh air inlet (102) and a return air inlet (104), a fresh air valve (103) being provided inside the fresh air inlet (102), a blower (105) being provided inside the fresh air inlet (102), an air outlet (110) being provided at the other end of the device housing (101), a heat exchange coil (107), a post-evaporation temperature sensor (108), and a reheat coil (109) being provided in sequence between the blower (105) and the air outlet (110); A primary filter (301), a medium filter (302), a high-efficiency filter (303), and a control component (304) are sequentially installed on the inner side of the fresh air inlet (102); a system copper tube (305) is installed near the air outlet (110) of the equipment housing (101); a main throttle valve (306), a one-way valve (307), and a reheat valve (308) are installed inside the system copper tube (305); and a UV lamp (309) is installed on the outer side of the system copper tube (305); A control terminal (204) is installed outside the device housing (101); a low-pressure interface (205), a high-pressure interface (206), and a reheat interface (207) are arranged on one side of the control terminal (204); a drain port (202) is arranged outside the device housing (101); a negative ion port (203) is arranged inside the drain port (202); and a temperature and humidity sensor (201) is arranged outside the negative ion port (203). 2. The variable frequency multi-connected hoisting full air system according to claim 1 is characterized in that a fresh air temperature sensor (401) is installed inside the fresh air inlet (102), and a return air temperature sensor (402) is installed inside the return air inlet (104). 3. The variable frequency multi-connected suspended all-air system according to claim 1 is characterized in that: the frequency conversion principle of the system is to use a DC speed-regulating compression motor, which uses a three-phase four-pole DC brushless motor, and generates electromagnetic torque through interaction with the rotor magnet to achieve variable frequency control of the air conditioner. 4. The variable frequency multi-connected hoisting all-air system according to claim 1 is characterized in that: the dehumidification principle of the system is realized through the action of the air path and the refrigerant path; the air path passes through the air inlet, primary and secondary filtration and then passes through the evaporator to be cooled, the temperature drops to below the dew point to precipitate water, and then passes through the condenser, the wind temperature rises, the relative humidity decreases, and after negative ion purification and UV sterilization, it enters the area requiring dehumidification, the refrigerant path passes through the operation of the compressor, and the high-temperature and high-pressure gas is cooled through the condenser to become low-temperature and high-pressure gas, which is intercepted by capillaries to become low-temperature and low-pressure liquid, evaporates and absorbs heat through the evaporator, and returns to the compressor to become low-temperature and low-pressure gas, realizing a reciprocating cycle. 5. The variable frequency multi-connected ceiling-mounted full air system according to claim 1 is characterized in that: the system is equipped with a fresh air belt valve, which can be opened and closed manually or automatically. The outdoor fresh air and indoor return air are filtered through primary, medium and high efficiency, and then passed through the surface cooler, evaporator, condenser and wet film treatment before being sent to different areas. 6. The variable frequency multi-connected ceiling-mounted all-air system according to claim 1 is characterized in that: the system is equipped with a surface cooling coil, which provides cooling through a low-temperature 7°C water source, reduces the air temperature in the coil, removes moisture, and then drips into the water tray (106) and guides to the drain pipe. Dry cold air continues to be delivered to the room, and the coil return water flows back to the water tank through the 12°C water flow to achieve a continuous dehumidification process. 7. The variable frequency multi-connected hoisting all-air system according to claim 1 is characterized in that: the system is equipped with a wet membrane to realize the humidification function. When humidification is required, the humidification water supply valve is opened to moisten the wet membrane, and the dry air passes through the moistened wet membrane to complete the humidification of the dry incoming air. 8. The variable frequency multi-connected hoisting full air system according to claim 1 is characterized in that the system can be linked with the exhaust fan to achieve air circulation and improve the exhaust effect. 9. The variable frequency multi-connected hoisting all-air system according to claim 1 is characterized in that: the system is equipped with intelligent control function, supports standard 485 protocol, can be used in conjunction with intelligent control equipment, and provides intelligent operation and control.