CN103017263A - Multifunctional air conditioner terminal - Google Patents

Abstract

The invention discloses a multi-functional air conditioner terminal, which comprises a cavity with an air outlet on the front and an air return opening on the back. The cavity is provided with a high-efficiency filter, and also includes a cleaning device. The cleaning device includes a high-efficiency filter The water receiving tray under the net, and the automatic water spray cleaning brush located directly above the water receiving tray, and the automatic water spray cleaning brush is located between the high-efficiency filter screen and the air return port. By adding cleaning equipment and high-efficiency filters, the air quality can be improved while increasing its service life.

Description

multifunctional air conditioner

technical field

The present invention relates to a fully functional indoor air handler terminal. The full-featured indoor air treatment terminal integrates the functions of air conditioner, air purifier, humidifier, fresh air heat exchanger, and negative oxygen ion generator. This equipment breaks the traditional air conditioner, fresh air heat exchanger, humidifier, and air purifier, and only has a single air conditioning processing function. It integrates air conditioning cooling, heating, air dehumidification, humidification, sterilization, and air quality testing. , Fresh air ventilation, heat recovery, negative oxygen ion generation, PM2.5 purification, harmful gas absorption, filter automatic cleaning and other functions are integrated into a full-featured indoor air treatment terminal.

Background technique

At present, with the improvement of people's quality of life, more and more attention is paid to indoor air quality, the air treatment industry is becoming more and more prosperous, and there are quite a lot of types of air treatment equipment, but the following problems still exist:

1. Equipment such as air conditioners, fresh air heat exchangers, purifiers, and humidifiers have single functions, and there is no connection between the equipment, which restricts each other and affects the use effect of the equipment. as follows:

1. The existing indoor air purification equipment can only process indoor air, and cannot purify the fresh air entering from the outside in time. The fresh outdoor air keeps entering, so that the purifier works for a long time, and the indoor air still cannot be completely purified, and the survival rate of negative ions is low.

2. The fresh air fan provides outdoor air with high oxygen content for the room, but at the same time takes away the load generated by the indoor air conditioner operation, wasting energy.

3. Fresh air heat exchangers, humidifiers, air purification equipment and air-conditioning indoor units all need to be equipped with separate power components for operation. The material consumption of the equipment increases, the installation and operation costs are high, multiple equipment takes up a large space, and the space utilization rate of the house is low.

2. Traditional air treatment equipment cannot automatically detect and clean the filter screen according to the pollution degree of the high-efficiency filter screen. It needs to be taken down regularly for manual cleaning, which is inconvenient to operate, and the timing of the filter screen is not accurate, which is easy to cause secondary pollution.

Three: The traditional central air-conditioning terminal and fresh air equipment lead to indoor negative oxygen ion concentration much lower than the 1000-1500 per cubic centimeter required by the World Health Organization, in fact it is only below 200 per cubic centimeter, which is prone to air-conditioning diseases.

4. Existing public air-conditioning equipment, the air-conditioning ducts of each room are connected, the cleaning of the air ducts is inconvenient and expensive, and viruses and bacteria are easy to breed in the air ducts. Especially in hospitals, it is easy to cause cross-infection of germs in each room.

5. Air-conditioning equipment is not used in spring and autumn, resulting in waste of cost.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, and provide a multi-functional air conditioner terminal that improves air quality and increases its service life by adding cleaning equipment and high-efficiency filter screens.

The purpose of the present invention is mainly achieved through the following technical solutions: the multi-functional air conditioner terminal includes a cavity with an air outlet in the front and a return air outlet in the back, a high-efficiency filter is arranged in the cavity, and a cleaning device is also included. The cleaning device includes a water receiving tray arranged under the high-efficiency filter, and an automatic water spray cleaning brush located directly above the water receiving tray, and the automatic water spray cleaning brush is located between the high efficiency filter and the return air outlet.

A high-efficiency filter bypass valve is also provided in the cavity, and an electrostatic adsorption device is arranged on the high-efficiency filter bypass valve. The high-efficiency filter bypass valve and the high-efficiency filter are located on the same plane, and the high-efficiency filter bypass The valve is embedded in the high-efficiency filter screen or the high-efficiency filter screen bypass valve is located between the high-efficiency filter screen and the inner wall of the cavity.

The cavity is also provided with a heat exchanger and a heat exchange bypass valve, the heat exchanger and the heat exchange bypass valve are located on the same plane, and the heat exchange bypass valve is embedded on the heat exchanger or the heat exchange bypass valve is located on the Between the high heat exchanger and the inner wall of the cavity.

It also includes a fresh air supply device, the fresh air supply device includes a fresh air inlet, the fresh air inlet communicates with the cavity, the fresh air inlet is provided with a filter, and the fresh air inlet is provided with an air volume adjustment valve.

The fresh air supply device also includes an exhaust port, and the exhaust port communicates with the cavity.

The fresh air supply device also includes a heat recovery filter element and an exhaust port connected to the room. The heat recovery filter element is composed of several longitudinal air passages and horizontal air passages interlaced. The fresh air inlet passes through the longitudinal air passages and the cavity of the heat recovery filter element. conduction, the exhaust port communicates with the cavity through the transverse air passage of the heat recovery filter element.

The air inlet surface of the filter is provided with a fresh air cleaning device, and the fresh air cleaning device includes a water spray cleaning rinse located on the air inlet surface of the filter and a water receiving device located below the filter.

The cavity is also provided with an activated carbon filter screen, a nano photocatalytic net, a UV lamp, a negative oxygen ion generator and a humidifying and atomizing device.

The cavity is divided according to function from the air outlet to the air return port: a return air chamber, a fan chamber, and an air outlet chamber connected in sequence, and the high-efficiency filter, cleaning device, and high-efficiency filter bypass valve are all located in the return air chamber.

The cavity is divided according to function from the air outlet to the air return port: a return air chamber, a fan chamber, and an air outlet chamber connected in sequence, and the heat exchanger and the heat exchange bypass valve are located in the air outlet chamber.

The cavity is divided according to the function from the air outlet to the air return port: the return air chamber, the fan chamber, and the air outlet chamber connected in sequence; The chamber is connected, and the exhaust port is connected with the air outlet chamber through the horizontal air passage of the heat recovery filter element.

The cavity is divided according to the function from the air outlet to the air return port: the return air chamber, the fan chamber, the air outlet chamber, the activated carbon filter, the nano photocatalytic net, the UV lamp, the negative oxygen ion generator and the humidification chamber. The atomizing devices are all located in the air outlet chamber, and the negative oxygen ion generator and humidifying atomizing device are located at the air outlet.

From the air outlet to the air return port, the cavity is divided into functions according to the functions: a return air cavity, a fan cavity, and an air outlet cavity connected in sequence, and a fan is arranged in the fan cavity.

Specifically, the cavity is divided into a return air cavity, a fan cavity, and an air outlet cavity connected in sequence. The return air cavity communicates with the room through the return air port, and the air outlet cavity communicates with the room through the air outlet. A fan is provided, and the high-efficiency filters are located between the fan and the air return port.

A heat exchanger, an activated carbon filter, and a nano photocatalytic net are arranged in the air outlet chamber. A UV lamp tube is arranged between the nano photocatalytic net and the fan, and a negative oxygen ion generator and a humidifying and atomizing device are arranged between the heat exchanger and the air outlet. A heat exchange bypass valve is also provided in the air outlet chamber, and the heat exchange bypass valve is embedded in the heat exchanger or located between the heat exchanger and the inner wall of the air outlet chamber.

The high-efficiency filter bypass valve and the heat exchange bypass valve can reduce wind resistance and reduce the load of the fan when the air-conditioning terminal needs rapid cooling or heating, so as to achieve the purpose of energy saving and emission reduction.

The cleaning device and the fresh air cleaning device can be automatically started after the air conditioner terminal has been in operation for a long time, so as to realize the automatic cleaning of the high-efficiency filter and the dust on the air inlet surface of the filter, so as to achieve the internal cleaning of the air conditioner terminal, reduce air pollution, and improve the indoor air quality. quality.

The present invention adds a fresh air introduction device and a heat recovery device, that is, a fresh air inlet, an exhaust port, and a heat recovery filter element. Through the cooperation of these three devices, the heat recovery filter element performs heat exchange and recovery treatment, that is, the cooling capacity in the fresh air inlet With the cooling capacity in the exhaust port, the diaphragm heat exchange is carried out at the heat recovery filter element to increase the cooling capacity of the fresh air inlet to the room. For example, in summer, the outdoor air temperature is 38 degrees, and the indoor air temperature is 18 degrees. The temperature of the air introduced from the fresh air inlet is 38 degrees outside, and the air drawn out from the exhaust port is 18 degrees of indoor air. Both of these two streams of air need to provide heat recovery filters, and the outdoor air transfers its heat to the exhaust port. When the indoor air drawn out reaches the exhaust port, its air temperature is 26 degrees, and the temperature of the air discharged into the return air cavity designed by the present invention from the fresh air inlet is 31 degrees. Therefore, the introduced fresh air is outdoor air at 31 degrees. Instead of pure outdoor high-temperature air, the operating load of the heat exchanger can be reduced, and the purpose of rapid cooling can also be achieved. In order to reduce the operating load according to actual needs, the device can be turned off. Directly run the indoor return air heat exchange operation.

The practical working principle of this utility model is: the indoor return air enters the cavity of the device of the present invention through the return air outlet, and then blows out from the air outlet. Among them, the flow direction of the indoor return air in the return air cavity is divided into two types, one is directly After passing through the high-efficiency filter, it directly enters the fan cavity. In the other, for rapid heating or cooling, the return air directly passes through the high-efficiency filter bypass valve and then enters the fan cavity. During the exchange, the heating and cooling load of the room is relatively large, and it needs to be cooled and heated quickly. The bypass valve is closed to filter the indoor air. When the room is relatively clean, the high-efficiency filter bypass valve is opened to reduce the running wind resistance; in spring and autumn, because the heat exchange function of the air conditioner is generally not used, the equipment runs at In low gear, the high-efficiency filter bypass valve can automatically adjust its opening and closing according to the indoor air quality, so as to reduce the energy loss of its fan. There is an electrostatic adsorption device. The use principle of the heat exchange bypass valve is the same as that of the high-efficiency filter bypass valve.

In addition, when the return air enters the air outlet cavity, the quality treatment is carried out under the action of UV lamp tube, nano photocatalytic net and activated carbon filter. Heat is exchanged at the heat exchanger, and cooling and heating occur. Further, also in spring and autumn, when the heat exchange bypass valve is opened, the return air passes through the bypass valve directly to the air outlet, so as to reduce wind resistance.

Further, due to the high-efficiency air filtration for a long time, the high-efficiency filter will be covered with dust over a long period of time, which will easily cause blockage and affect the filtering effect. The device is cleaned by spraying water. The automatic water spray cleaning brush is composed of a motor, a connecting rod and a scraping brush. Water device, there is a scraping sheet in the middle of the scraping and cleaning side, and pinhole-shaped spray heads on both sides. When the motor is running, it sprays water on the high-efficiency filter while scrubbing. The automatic water spray cleaning brush sprays water against the air intake surface of the high-efficiency filter, and uses the water receiving tray below and the drainage pipe connected to the water receiving tray to discharge the sewage. The water inlet pipe provides cleaning water for the automatic water spray cleaning brush. Wherein the water jet cleaning rinse that is arranged on the air inlet face of the filter is consistent with the above-mentioned principle.

In addition, in order to increase the introduction of fresh air and improve indoor air quality. The invention adds a fresh air supply device, the fresh air supply device includes a fresh air inlet and an exhaust port, the fresh air inlet is connected to the return air chamber, the fresh air inlet is provided with a filter, and the exhaust port is connected to the air outlet chamber or \and the fan chamber conduction. In order to recover the heat at the exhaust port, the present invention further adds a heat recovery filter element. The heat recovery filter element is a stack of several intersecting channel structures, that is, the heat recovery filter element is composed of several longitudinal air passages and horizontal air passages. The channels are isolated from each other. When the air in the exhaust port and the air in the air inlet are running in the heat recovery filter element, the diaphragm between the channels is used for heat exchange, that is, the heat circulating in the exhaust port is transferred to the fresh air.

The advantages of the present invention are as follows:

1. The air treatment equipment has comprehensive functions for air cooling or heating, dehumidification, humidification, dust removal and purification, sterilization and disinfection, fresh air ventilation, heat recovery, air quality detection, automatic filter cleaning, and negative oxygen ion generation.

2. The air treatment equipment effectively combines air conditioners, fresh air heat exchangers, purifiers, and humidifiers through air valves and air quality sensors, which reduces the mutual inhibition between the functions and structures of individual equipment and improves the efficiency of the equipment. Use efficiency.

3. The air treatment equipment reasonably combines air purifier, dehumidifier, fresh air heat exchanger and air conditioner into a whole, only needs one fan, the equipment has compact structure, complete functions and convenient operation.

4. If the equipment is connected to the centralized fresh air supply equipment, it only needs to be connected to the fresh air interface of the equipment, and the air volume can be controlled, so that the air ducts can be connected through high-efficiency filters to prevent cross-infection; adding a negative oxygen ion generator can increase the indoor load. Oxygen ion concentration increases human immunity and prevents diseases.

5. The present invention can be used in any form of air conditioner terminal, including various types of fan coil units and indoor units of various types of freon systems. It can be flexibly matched with various air conditioner external units on the market, and has a wide range of applications.

Six, the greatest advantage of the present invention is: make indoor room air clean, improve the concentration of negative oxygen ions in the room, prevent and treat air-conditioning disease and save energy.

7. The automatic cleaning can not only prevent the growth of bacteria, but also increase the wind resistance and thus increase the energy consumption.

Description of drawings

     Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic top view of the present invention;

Fig. 3 is a schematic diagram of the utility return air cavity and fan cavity. the

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example 1:

As shown in FIG. 1 , FIG. 2 , and FIG. 3 , the arrows in the figures indicate the flow direction of air when heat exchange occurs.

The multi-functional air conditioner terminal includes a cavity with an air outlet 16 on the front and a return air outlet 1 on the back. The cavity is provided with a high-efficiency filter 4 and a high-efficiency filter bypass valve 5. The high-efficiency filter bypass valve 5 An electrostatic adsorption device 31 is arranged on it, and the high-efficiency filter bypass valve 5 and the high-efficiency filter 4 are located on the same plane. The high-efficiency filter screen bypass valve 5 is located between the high-efficiency filter screen 4 and the inner wall of the cavity or the high-efficiency filter screen bypass valve 5 is embedded on the high-efficiency filter screen 4 . The cavity is divided into a return air chamber, a fan chamber 20 and an air outlet chamber 19 which are connected in sequence. Select some or all positions to automatically clean the filter, fresh air and exhaust heat recovery, humidification device. The fan chamber 20 is provided with a fan 18 , and the high-efficiency filter 4 and the high-efficiency filter bypass valve 5 are located between the fan 18 and the air return port 1 . It also includes a cleaning device, which includes a water receiving tray 2 arranged below the high-efficiency filter screen 4, and an automatic water spray cleaning brush 3 positioned directly above the water receiving tray 2, and the automatic water spray cleaning brush 3 is located at the high-efficiency Between the filter screen 4 and the return air outlet 1. A heat exchanger 12 , an activated carbon filter 11 , and a nanometer photocatalytic net 10 are arranged in the air outlet chamber 19 . A UV lamp tube 9 is arranged between the nano photocatalytic net 10 and the fan, and a negative oxygen ion generator 14 and a humidifying and atomizing device 13 are arranged between the heat exchanger 12 and the air outlet 16 . A heat exchange bypass valve 121 is also provided in the air outlet chamber 19 , and the heat exchange bypass valve 121 is embedded in the heat exchanger 12 or located between the heat exchanger 12 and the inner wall of the air outlet chamber 19 . It also includes a fresh air supply device 6 , the fresh air supply device 6 includes a fresh air inlet 27 , the fresh air inlet 27 is connected to the return air cavity, and the fresh air inlet 27 is provided with a filter 272 . The fresh air supply device 6 also includes an exhaust port 28, and the exhaust port 28 is in communication with the air outlet cavity 19 or \and the fan cavity 20. The fresh air supply device 6 also includes a heat recovery filter element 61 , the fresh air inlet 27 is connected to the return air cavity through the heat recovery filter element 61 , and the exhaust port 28 is connected to the air outlet cavity 19 through the heat recovery filter element 61 . The fresh air inlet surface of the filter 272 is provided with a fresh air cleaning device. Exhaust port 28 can be conducted with indoor also can be conducted with outdoor. Set according to actual needs.

The practical working principle of this utility model is: the indoor return air enters the cavity of the device of the present invention through the return air outlet, and then blows out from the air outlet. Among them, the flow direction of the indoor return air in the return air cavity is divided into two types, one is directly After passing through the high-efficiency filter, it directly enters the fan cavity, and the other type directly passes through the high-efficiency filter bypass valve and then enters the fan cavity. In summer and winter, when the heat exchanger is used for heat exchange, the heating and cooling load of the room is relatively large. , requires rapid cooling and heating. At this time, the high-efficiency filter bypass valve is opened to provide a large air volume, rapid cooling and heating. When the room is relatively clean, the high-efficiency filter bypass valve is opened to reduce the running wind resistance; in spring and autumn, because the heat exchange function of the air conditioner is generally not used, the equipment operates at a low gear, and the high-efficiency filter bypass valve Its opening and closing can be automatically adjusted according to the indoor air quality, so as to reduce the energy loss of its fan. At the same time, in order to also play the role of filtering the return air, the high-efficiency filter net bypass valve of the present invention is also provided with an electrostatic adsorption device.

The invention is applicable to various air-conditioning terminals such as water systems, frequency conversion systems, frequency conversion systems, and fluorine systems. It is also suitable for various air-conditioning terminals such as household hanging units, cabinet units, and duct units. It is also suitable for various special equipment such as automobiles and ships.

In addition, when the return air enters the air outlet cavity, the quality treatment is carried out under the action of UV lamp tube, nano photocatalytic net and activated carbon filter. Heat is exchanged at the heat exchanger, and cooling and heating occur. Further, also in spring and autumn, when the heat exchange bypass valve is opened, the return air passes through the bypass valve directly to the air outlet, so as to reduce wind resistance.

Further, due to the high-efficiency air filtration for a long time, the high-efficiency filter will be covered with dust over a long period of time, which will easily cause blockage and affect the filtering effect. Therefore, the present invention adds a cleaning device, which uses water spraying. For cleaning, the automatic water spray cleaning brush is composed of a motor, a connecting rod and a scraper, and the motor drives the scraper to reciprocate on the high-efficiency filter screen. The scraper is empty and equipped with a water guiding device. There is a scraping sheet in the middle of one side of the scraping brush, and pinhole-shaped spray heads on both sides. When the motor is running, it sprays water on the high-efficiency filter while scrubbing. The automatic water spray cleaning brush sprays water against the air intake surface of the high-efficiency filter, and uses the water receiving tray below and the drainage pipe connected to the water receiving tray to discharge the sewage. The water inlet pipe provides cleaning water for the automatic water spray cleaning brush.

In addition, in order to increase the introduction of fresh air and improve indoor air quality. The present invention especially increases the fresh air supply device 6, and the fresh air supply device 6 comprises a fresh air inlet 27 and an exhaust port 28, and the fresh air inlet 27 is connected with the return air cavity, and the fresh air inlet 27 is provided with a filter 272, and the exhaust port 28 is connected to the return air chamber. The air outlet cavity 19 or \ is conducted with the fan cavity 20. In order to recover the heat at the exhaust port, the present invention further adds a heat recovery filter element 61, the heat recovery filter element 61 is a stack of several intersecting channel structures, and the channels are isolated from each other, when the air in the exhaust port and the air inlet When the air is running in the heat recovery filter element 61, the diaphragm between the channels is used to exchange heat, that is, the heat circulating in the exhaust port is transferred to the fresh air.

Specifically, the overall structure of the present invention is a cuboid, about 1 meter long, about 50 centimeters wide, and about 25 centimeters thick. on either side of the device in landscape orientation. When the fan is running, the indoor return air passes through the return air outlet at the lower part of the fan, passes through the high-efficiency filter, mixes with the outdoor fresh air that has passed through the high-efficiency filter and heat recovery filter element, and enters the fan chamber. On the side of the air outlet chamber of the fan, there is an air outlet connected to the heat recovery filter. One part of the air is discharged outside through the heat recovery filter, and the other part of the fan is discharged through: UV lamps, nano-photocatalytic nets, activated carbon filters, and heat exchangers. , Humidification and atomization device, negative ion generator processing, sent to the room through the air outlet. The air return port increases the size of the silent box, increases the air intake area, and the water pan is under the fan, which effectively reduces the noise of the equipment. The high-efficiency filter is installed vertically, and the device can be easily pulled out for manual cleaning or replacement.

The equipment has four modes: cooling, heating, fresh air, and cleaning.

In the cooling and heating mode, the purification function is always on, and there is also a fresh air function, which can be adjusted according to the indoor air quality, and the humidification function can be turned on and off according to the internal conditions.

The fresh air mode is in the transitional season when there is no need for cooling or heating. In this mode, there is a purification function, the heat exchanger is not running, and the heat exchange bypass valve 121 of the equipment directly sends air to the room without passing through the heat exchanger and the heat recovery filter element. Exhaust air to the outside.

The cleaning mode is to start the cleaning mode automatically when the equipment is running for a certain period of time. At this time, the fan reverses, the valve of the running water connected to the cleaning interface is opened, and the cleaning motor starts. Cleaning The automatic water spray cleaning brush swings back and forth, spraying water on the high-efficiency filter net at the indoor return air and fresh air inlet, the dust attached to the filter net is washed down, and is discharged from the equipment through the water receiving tray and the condensate drainage pipe. After cleaning, the water circuit is closed, and the fan continues to reverse to make the filter screen dry quickly.

As shown in Figures 1, 2, and 3, the present invention also has other auxiliary equipment. For example, an air regulating panel 17 is installed at the air outlet 16, and an air volume regulating valve 26 is installed at the fresh air inlet 27 and the exhaust port 28. , The fresh air inlet 27 is also connected to the return air chamber through the fresh air bypass valve 301 , and the exhaust port 28 is connected to the air outlet chamber through the exhaust bypass valve 302 . There is a gap between the heat exchanger and the activated carbon mesh, which constitutes a moisture-proof cavity 21 . The fan 18 is composed of a motor 182 and a centrifugal impeller 181 .

This applicable model patent is also applicable to all air-conditioning terminals in special industries such as horizontal type, four-side air outlet type, household cabinet machine, hanging machine, fan coil type, bed-mounted fresh air fan, and other special industries such as automobiles and ships. The high-efficiency filter screen and the high-efficiency filter screen bypass valve, the heat exchanger and the heat exchange bypass valve can be placed in any position of the air outlet and return air passage, and this solution is only one of them. The automatic cleaning can not only prevent the growth of bacteria, but also eliminate the dust adsorbed on the filter net, thereby increasing wind resistance, increasing energy consumption, and playing the role of energy saving and sterilization. Use water or freon as a cooling source.

As described above, the present invention can be well realized.

Claims (12)

1. Multifunctional air conditioner terminal, including a cavity with an air outlet (16) in the front and a return air outlet (1) in the back, characterized in that: a high-efficiency filter (4) is installed in the cavity, and cleaning device, the cleaning device includes a water receiving tray (2) arranged under the high-efficiency filter (4), and an automatic water spray cleaning brush (3) located directly above the water receiving tray (2), and the automatic water spray The cleaning brush (3) is located between the high-efficiency filter (4) and the return air outlet (1). 2. The multi-functional air conditioner terminal according to claim 1, characterized in that: a high-efficiency filter bypass valve (5) is provided in the cavity, and an electrostatic adsorption device is installed on the high-efficiency filter bypass valve (5). device (31), the high-efficiency filter bypass valve (5) is located on the same plane as the high-efficiency filter (4), and the high-efficiency filter bypass valve (5) is embedded on the high-efficiency filter (4) or the high-efficiency filter The bypass valve (5) is located between the high-efficiency filter (4) and the inner wall of the cavity. 3. The multifunctional air conditioner terminal according to claim 1, characterized in that: a heat exchanger (12) and a heat exchange bypass valve (121) are also arranged in the cavity, the heat exchanger (12) and the heat exchanger The exchange bypass valve (121) is located on the same plane, and the heat exchange bypass valve (121) is embedded on the heat exchanger (12) or the heat exchange bypass valve (121) is located between the heat exchanger (12) and the inner wall of the cavity between. 4. The multi-functional air conditioner terminal according to claim 1, characterized in that it also includes a fresh air supply device (6), and the fresh air supply device (6) includes a fresh air inlet (27), a fresh air inlet (27) and a cavity conduction, the fresh air inlet (27) is provided with a filter (272), and the fresh air inlet (27) is provided with an air volume adjustment valve. 5. The multifunctional air conditioner terminal according to claim 4, characterized in that: the fresh air supply device (6) also includes a heat recovery filter element (61) and an exhaust port (28) connected to the room, and the heat recovery filter element (61 ) is composed of several longitudinal air passages and horizontal air passages interlaced. The fresh air inlet (27) communicates with the cavity through the longitudinal air passage of the heat recovery filter element (61), and the exhaust port (28) passes through the heat recovery filter element ( 61) The transverse air-passing channel is in conduction with the cavity. 6. The multifunctional air conditioner terminal according to claim 4, characterized in that: the air inlet surface of the filter (272) is provided with a fresh air cleaning device, and the fresh air cleaning device includes a spray nozzle located on the air inlet surface of the filter (272). The water container cleans and rinses and is positioned at the water receiving device below the filter (272). 7. The multifunctional air conditioner terminal according to claim 1, characterized in that: activated carbon filter (11), nano photocatalytic net (10), UV lamp (9), negative oxygen An ion generator (14) and a humidifying and atomizing device (13). 8. The multi-functional air conditioner terminal according to claim 2, characterized in that: the cavity is divided into functions from the air outlet (16) to the air return port (1) according to the function: the return air cavity and the fan cavity ( 20), the outlet chamber (19), the high-efficiency filter (4), the cleaning device, and the high-efficiency filter bypass valve (5) are all located in the return air chamber. 9. The multi-functional air conditioner terminal according to claim 3, characterized in that: the cavity is divided into functions from the air outlet (16) to the return air outlet (1) according to the function: the return air cavity and the fan cavity ( 20), the air outlet chamber (19), the heat exchanger (12) and the heat exchange bypass valve (121) are all located in the air outlet chamber (19). 10. The multi-functional air conditioner terminal according to claim 6, characterized in that: the cavity is divided into functions from the air outlet (16) to the air return port (1) according to the function: the return air cavity and the fan cavity ( 20), the air outlet chamber (19), the fresh air inlet (27) communicates with the return air chamber or \ and the fan chamber (20) through the longitudinal air passage of the heat recovery filter element (61), and the exhaust port (28) passes through The transverse air passage of the heat recovery filter element (61) is in communication with the air outlet chamber (19). 11. The multi-functional air conditioner terminal according to claim 8, characterized in that: the cavity is divided into functions from the air outlet (16) to the air return port (1) according to the functions: return air cavity, fan cavity ( 20), air outlet cavity (19), activated carbon filter (11), nano photocatalytic net (10), UV lamp (9), negative oxygen ion generator (14) and humidification and atomization device (13) are located In the air outlet cavity (19), the negative oxygen ion generator (14) and the humidifying and atomizing device (13) are located at the air outlet. 12. The multi-functional air conditioner terminal according to claim 2, characterized in that: the cavity is divided into functions from the air outlet (16) to the air return port (1) according to functions: a return air cavity and a fan cavity ( 20), the air outlet chamber (19), the fan chamber (20) is provided with a fan (18).

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