Integrated air conditioner

Abstract

The invention relates to the technical field of household appliances, and discloses an integrated air conditioner which is arranged outdoors and comprises a box body, a refrigerating system, a fan, an evaporator and a fresh air module, the box body is divided into a circulating cavity and a temperature control cavity, and the circulating cavity is provided with an air return channel and an air supply channel which are communicated with the indoor space; the refrigerating system is arranged in the temperature control cavity; the evaporator is arranged in the circulating cavity, communicates with the refrigerating system and is arranged between the air return duct and the air supply duct; the fan is arranged in the circulation cavity and located between the air supply duct and the evaporator. The fresh air module is arranged on the outer wall of the box body and communicates with the circulation cavity. According to the integrated air conditioner, the function of adjusting indoor heat and humidity loads through an outdoor natural cold source can be achieved, energy consumption is reduced, operation on a refrigerating system in the installation process is avoided, and efficient operation of the refrigerating system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an integrated air conditioner. Background Art

[0002] At present, as people's requirements for quality of life continue to increase, consumers' pursuit of air conditioners is also getting higher and higher. On the premise of meeting normal cooling and heating, being able to realize the fresh air function has also become a more common requirement.

[0003] However, current household split air conditioners equipped with fresh air functions only consider introducing fresh air to improve indoor air quality. When outdoor air conditions approach the target comfortable level, they do not consider directly introducing fresh air to reduce indoor heat and humidity loads, thereby achieving energy-saving operation. Furthermore, because the indoor and outdoor units of split air conditioners are connected by copper pipes, the installation process can easily damage the cooling system, resulting in low system energy efficiency. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an integrated air conditioner that can utilize outdoor natural cooling sources to adjust indoor heat and humidity loads, reduce energy consumption, avoid operation of the refrigeration system during installation, and ensure efficient operation of the refrigeration system.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] An integrated air conditioner, installed outdoors, is characterized by comprising:

[0007] The box body is partitioned into a circulation chamber and a temperature control chamber, and the circulation chamber is provided with a return air duct and an air supply duct connected to the room;

[0008] A refrigeration system is provided in the temperature control chamber;

[0009] an evaporator, disposed in the circulation chamber, connected to the refrigeration system, and disposed between the return air duct and the supply air duct;

[0010] a fan, disposed in the circulation chamber and located between the air supply duct and the evaporator;

[0011] A fresh air module is provided on the outer wall of the box body and is connected to the circulation cavity;

[0012] Among them, when the refrigeration system is not working, under the action of the fan, fresh air passes through the fresh air module and the air supply duct to adjust the indoor heat and humidity load.

[0013] In some embodiments of the present application, the refrigeration system includes a fan, a throttling device, a compressor and a four-way valve. The compressor is cyclically connected to the four-way valve, and the four-way valve is also cyclically connected to the evaporator, the throttling device and the fan in sequence.

[0014] In some embodiments of the present application, the fresh air module includes a housing, wherein a coarse filter, a backflow prevention baffle, and a fine filter are sequentially arranged in the housing along the direction of airflow;

[0015] The two ends of the shell are respectively an air outlet end and an air inlet end, and the air inlet end is provided with a rainproof cap.

[0016] In some embodiments of the present application, the backflow prevention baffles include two symmetrically arranged ones, the backflow prevention baffles are inclined toward the horizontal plane, and the free ends thereof are arranged toward the direction close to the fine filter, and a vent is formed between the free ends of the two backflow prevention baffles;

[0017] The angle between the anti-backflow baffle and the horizontal plane is a, and the value range of a is 25 to 35 degrees.

[0018] In some embodiments of the present application, a rectifying grille is provided in the air supply duct, and an air guide assembly is provided at one end of the air supply duct facing the room;

[0019] The air guide device includes an air guide pipe, and a plurality of air guide blades are arranged in the air guide pipe.

[0020] In some embodiments of the present application, an air outlet duct is provided indoors, one end of the air outlet duct is closed, the other end of the air outlet duct is connected to the air supply duct, and a plurality of air guide components are sequentially provided on the air outlet duct along the air flow direction;

[0021] The air guide device includes an air guide pipe, and a plurality of air guide blades are arranged in the air guide pipe.

[0022] In some embodiments of the present application, the return air duct and the supply air duct are both arranged on a side of the box body close to the wall, and the return air duct is located above the supply air duct. A purification module is provided in the circulation cavity corresponding to the return air duct, and the purification module divides the temperature control cavity into an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the return air duct, and the supply air duct and the fresh air module are both connected to the air outlet cavity. The evaporator is arranged in the air outlet cavity.

[0023] In some embodiments of the present application, the return air duct is arranged on a side of the box body close to the wall, the supply air duct is arranged at the upper end of the box body, and a purification module is provided at one end of the supply air duct facing the room;

[0024] The evaporator divides the temperature control cavity into an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the return air duct, and the air supply duct and the fresh air module are both connected to the air outlet cavity.

[0025] In some embodiments of the present application, a return air filter is provided at one end of the return air duct located indoors;

[0026] Alternatively, it further includes a return air duct arranged indoors, one end of the return air duct is connected to the return air duct through a purification module, and a return air filter is provided on the other end of the return air duct or the side wall of the return air duct.

[0027] In some embodiments of the present application, a control module is provided in the temperature control chamber, and the refrigeration system and the fan are electrically connected to the control module.

[0028] An integrated air conditioner according to an embodiment of the present invention has the following beneficial effects compared with the prior art: a circulation chamber and a temperature control chamber are partitioned into a box body, and a refrigeration system is arranged in the temperature control chamber, an evaporator, a fan and a fresh air module are arranged in the circulation chamber, and the evaporator is connected to the refrigeration system, the fan is arranged between the air supply duct and the evaporator, and the fresh air module is arranged on the outer wall of the box body and is connected to the circulation chamber. During normal cooling or heating, the heating system runs to achieve cooling or heating; when only an outdoor natural cold source is needed to adjust the indoor heat and humidity load, the refrigeration system is turned off, the fan is started, and the fresh air enters the circulation chamber through the fresh air module and finally enters the room through the air supply duct, forming a slightly positive pressure air environment indoors and replacing the air in the room, thereby realizing the function of adjusting the indoor heat and humidity load by using an outdoor natural cold source, without the need to start the refrigeration system, and reducing energy consumption.

[0029] At the same time, since the refrigeration system is directly installed in the box, the air conditioner is integrated. There is no need to operate the refrigeration system during the installation process, which avoids damage to the refrigeration system during the installation process and ensures the efficient operation of the refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of an integrated air conditioner according to embodiment 1 of the present invention.

[0031] Figure 2 It is a structural schematic diagram of the refrigeration system of the integrated air conditioner of the present invention.

[0032] Figure 3 It is a structural schematic diagram of the fresh air module of the integrated air conditioner of the present invention.

[0033] Figure 4 Schematic diagram of air flow direction of an integrated air conditioner according to embodiment 1 of the present invention.

[0034] Figure 5for Figure 4 A partial enlarged view of middle A.

[0035] Figure 6 for Figure 4 A partial enlarged view of B.

[0036] Figure 7 This is a structural diagram of an integrated air conditioner according to embodiment 2 of the present invention.

[0037] Figure 8 Schematic diagram of air flow direction of an integrated air conditioner according to embodiment 2 of the present invention.

[0038] Figure 9 for Figure 7 A partial enlarged view of C in the middle.

[0039] Figure 10 for Figure 7 A partial enlarged view of D in the middle.

[0040] Among them: 1-box, 11-temperature control chamber, 12-air inlet chamber, 13-air outlet chamber, 14-return air duct, 15-supply air duct, 2-refrigeration system, 21-fan, 22-throttling device, 23-compressor, 24-four-way valve, 3-evaporator, 4-fan, 5-fresh air module, 51-shell, 52-coarse filter, 53-inverted filling baffle, 54-fine filter, 55-rain cap, 56-ventilation hole, 6-rectifier grille, 7-air guide assembly, 71-air guide blade, 8-outlet pipe, 9-return air filter, a-return air duct, b-control module, c-wall, d-purification module. DETAILED DESCRIPTION

[0041] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0042] Example 1

[0043] like Figure 1As shown, an embodiment of the present invention is an integrated air conditioner, which is located outdoors, with the indoor and outdoor areas separated by a wall c. The integrated air conditioner includes a housing 1, a refrigeration system 2, an evaporator 3, a fan 4, and a fresh air module 5. The housing 1 is partitioned into a circulation chamber and a temperature control chamber 11. The housing 1 is a top-bottom structure, with the circulation chamber located above the temperature control chamber 11. The circulation chamber is provided with a return air duct 14 and a supply air duct 15 connected to the indoor room. The return air duct 14 inputs indoor air into the housing 1 for processing, and then discharges it into the indoor room through the supply air duct 15. The refrigeration system 2 is located in the temperature control chamber; the evaporator 3 is located in the circulation chamber and is in circulation with the refrigeration system 2, achieving the cooling and heating effects generated by the refrigeration system (i.e., the operating mode of a conventional air conditioner). When set up, the evaporator 3 is located between the return air duct 14 and the supply air duct 15, that is, the indoor air transported from the return air duct 14 needs to pass through the evaporator 3 before being discharged into the indoor room.

[0044] The fan 4 is disposed within the circulation chamber and between the air supply duct 15 and the evaporator 3, thereby increasing the power of the air circulation of the integrated air conditioner. The fresh air module 5 is disposed on the outer wall of the housing 1 and communicates with the circulation chamber. Specifically, the fresh air module 5 is disposed on the outer wall of the circulation chamber.

[0045] The temperature control chamber 11 is also equipped with a control module b. The refrigeration system 2 and the fan 4 are both electrically connected to the control module 11, thereby realizing intelligent control of the air conditioner. The housing 1 can be provided with a button electrically connected to the control module 11, which can be used to operate the air conditioner. The housing 1 can also be provided with a signal receiving device electrically connected to the control module 11 for receiving commands from a remote control or an app, thereby achieving the function of wirelessly controlling the air conditioner.

[0046] The integrated air conditioner based on the above characteristics is constructed by separating the housing 1 into a circulation chamber and a temperature control chamber 11, and arranging the refrigeration system 2 in the temperature control chamber 11, arranging the evaporator 3, the fan 4 and the fresh air module 5 in the circulation chamber, and the evaporator 3 is connected to the refrigeration system 2, the fan 4 is arranged between the air supply duct 15 and the evaporator 3, and the fresh air module 5 is arranged on the outer wall of the housing 1 and is connected to the circulation chamber. During normal cooling or heating, the heating system 2 is in operation to achieve indoor cooling or heating; when only outdoor natural cooling sources are needed to adjust the indoor heat and humidity load, the refrigeration system 2 is turned off, the fan 4 is started, and the fresh air enters the circulation chamber through the fresh air module 5, and finally enters the room through the air supply duct 15, forming a slightly positive pressure air environment indoors, replacing the air in the room, thereby realizing the function of adjusting the indoor heat and humidity load by using outdoor natural cooling sources, without the need to start the refrigeration system, and reducing energy consumption.

[0047] Specifically, during the installation process, traditional split-type air conditioners are prone to damage to the refrigeration system (including: refrigerant leakage, mixing of air, moisture, metal chips, etc. into the circulation system), thereby causing resistance loss along the connecting pipe and local resistance loss of the shut-off valve, resulting in low system operation energy efficiency. Therefore, traditional fresh air air conditioners have very high professional and technical requirements for installers. The present invention integrates the layout of the entire air conditioner. Since the refrigeration system 2 is directly set in the box, the installation process does not involve the operation of the refrigeration system 2, thereby effectively ensuring the efficient operation of the refrigeration system 2. Taking a 1.5P household air conditioner as an example, the integrated air conditioner of the present invention can reduce the refrigerant charge by about 10% compared with the traditional split unit, which greatly simplifies the refrigerant filling and reduces costs.

[0048] Please see the attached Figure 2 In the present invention, the refrigeration system 2 includes a fan 21, a throttling device 22, a compressor 23, and a four-way valve 24. The compressor 23 is in cyclic communication with the four-way valve 24, and the four-way valve 24 is in cyclic communication with the evaporator 3, the throttling device 22, and the fan 21 in sequence. When the refrigeration system is in operation, it can achieve cooling or heating. Specifically:

[0049] During heating, the compressor 23 discharges high-temperature and high-pressure refrigerant gas, which enters the evaporator 3 through the four-way valve 24, releases heat in the evaporator 3 and condenses into high-temperature and high-pressure liquid refrigerant. The high-pressure liquid refrigerant is then throttled and reduced in pressure to a low-temperature and low-pressure two-phase refrigerant through the throttling device 22. The throttled refrigerant enters the condenser 21, absorbs heat in the condenser 21 and evaporates into a low-temperature and low-pressure gaseous refrigerant. After passing through the four-way valve 24, it enters the compressor 23 to complete the heat pump cycle.

[0050] During refrigeration, the compressor 23 discharges high-temperature and high-pressure refrigerant gas, which enters the condenser 21 through the four-way valve 24, releases heat in the condenser 21 and condenses into high-temperature and high-pressure liquid refrigerant, and then passes through the throttling device 22 to throttle and reduce the pressure of the high-pressure liquid refrigerant into a low-temperature and low-pressure two-phase refrigerant. The throttled refrigerant enters the evaporator 3, absorbs heat in the evaporator 3 and evaporates into a low-temperature and low-pressure gaseous refrigerant, and then passes through the four-way valve 24 and enters the compressor 23 to complete the refrigeration cycle.

[0051] Please see the attached Figure 3In the present invention, the fresh air module 5 includes a housing 51, within which a coarse filter 52, a backflow prevention baffle 53, and a fine filter 54 are sequentially arranged along the direction of airflow. The fine filter 54 can be a HEPA filter. Since coarse filtration filters larger impurities, the thickness of the coarse filter 52 is not required for filtration; while fine filtration requires a filtering effect in the thickness direction of the fine filter 54. Therefore, when setting, the thickness of the coarse filter 52 is smaller than that of the fine filter 54. Specifically, if the thickness of the coarse filter 52 is h and the thickness of the fine filter 54 is H, then H = (4 to 5) h, such as H = 4.5 h. At the same time, a spacing is provided between the coarse filter 52 and the backflow prevention baffle 53, and the spacing can be equivalent to the thickness of the fine filter 54. When only outdoor natural cooling sources are needed to regulate indoor heat and humidity loads, the fresh air passes through the filtration of the fresh air module 5 before entering the room, ensuring the quality of the air entering the room. At the same time, in the cooling or heating state, under the action of the fan 4, the air flows to the air supply duct 15, and will not flow to the fresh air module 5 and be discharged. However, by setting the anti-backflow baffle 53, it is also possible to further prevent air from flowing to the fresh air module 5, thereby ensuring the normal operation of the air conditioner.

[0052] In addition, during normal cooling and heating processes, under the action of the fan 4, the fresh air module 5 will also enter fresh air, thereby allowing fresh air to enter the room, that is, the integrated air conditioner of the present invention can realize the fresh air function in any working state. At the same time, due to the limited size of the current fresh air fan indoor unit, the indoor unit circulating air volume level is low, the supply and return air temperature difference is large, the operating energy efficiency is low, and the air flow comfort is poor; in addition, when introducing fresh air, due to the fixed position of the indoor unit and the small structural space, it is limited by the noise of the fresh air fan, and it is difficult to significantly increase the fresh air volume (taking the 1.5p fresh air air conditioner as an example, its fresh air volume is only about 5% of the indoor unit circulating air volume). When there is a need to cool the room air, it is difficult to achieve the regulation of the indoor heat and humidity load through fresh air. The air conditioner of the present invention has an integrated layout, and the air inlet cross-sectional area of the fresh air module 5 is designed with sufficient space, which can effectively increase the fresh air volume. The fresh air purification and the air conditioner supply and return air share the same air duct and fan 4, which ensures a large fresh air volume and reduces production costs. At the same time, it has the function of using outdoor natural cooling sources to regulate indoor heat and humidity loads.

[0053] In addition, in this embodiment, the fan 4 can be an axial flow fan. Compared with the traditional cross-flow fan, the axial flow fan has a larger air supply volume and a higher air supply static pressure, can achieve large circulation air volume operation, and has higher operating energy efficiency.

[0054] In this embodiment, the anti-backflow baffle 54 includes two symmetrically arranged ones, the anti-backflow baffle 54 is tilted toward the horizontal plane, and its free end is arranged in the direction close to the fine filter 54, and a vent 56 is formed between the free ends of the two anti-backflow baffles 53 to ensure the smooth passage of airflow. In the specific setting, the anti-backflow baffle 53 can be hinged to the inner wall of the shell 51, so that the size of the vent 56 can be adjusted; the anti-backflow baffle 53 can also be directly fixedly connected to the inner wall of the shell 51. However, no matter which connection method is used, its angle needs to be within a certain range. Specifically, if the angle between the anti-backflow baffle and the horizontal plane is a, the value range of a is 25 to 35 degrees, which can ensure that the airflow quickly flows from the coarse filter 52 through the vent 56 to the fine filter 54, and can also avoid air backflow.

[0055] If the backflow prevention baffle 53 is hinged to the inner wall of the shell 51, a limiting member may be provided inside the shell to ensure that the backflow prevention baffle 53 is adjusted within the limiting range of the limiting member.

[0056] Please see the attached Figure 5 In this embodiment, a rectifying grille 6 is provided in the air supply duct 15, and an air guide assembly 7 is provided at one end of the air supply duct 15 facing the indoor space; the air guide device 7 includes an air guide pipe, and a plurality of air guide blades 71 are provided in the air guide pipe. The wind delivered by the fan 4 is rotating wind. The rotating wind is combed into a smooth airflow after passing through the rectifying grille 6, and then sent to the air guide assembly 7 after passing through the wall along the air supply duct 15. The air guide blades 71 of the air guide assembly 7 realize multi-angle air supply. The air guide blades 71 can be set to a fixed angle or an adjustable form, and the specific setting can be based on actual conditions. When set to an adjustable form, it can be achieved by using a motor to drive its rotation, such as the air guide plate of an existing air conditioner indoor unit.

[0057] Please see the attached Figure 1 and 6In this embodiment, the return air duct 14 and the supply air duct 15 are both disposed on a side of the housing 1 close to the wall c, with the return air duct 14 located above the supply air duct 15. A return air filter 9 is provided at one end of the return air duct 14 located indoors. The return air filter 9 filters out impurities such as lint and dander from the air, preventing them from entering the interior of the housing 1. A purification module d is provided within the circulation chamber, corresponding to the return air duct 14. The purification module d can remove odors and kill germs from the air, ensuring air cleanliness. The purification module d divides the temperature-controlled chamber into an inlet chamber 12 and an outlet chamber 13. The inlet chamber 12 is connected to the return air duct 14, and the supply air duct 15 and the fresh air module 5 are both connected to the outlet chamber 13. The evaporator 3 is disposed within the outlet chamber 13. This means that air entering from the return air duct first enters the inlet chamber 12 and must then pass through the purification module d before reaching the outlet chamber 13, thereby ensuring complete purification of the air. The purification module d can be any existing device with disinfection or sterilization functions, and will not be described in detail here.

[0058] In a specific configuration, a partition plate can be provided on the inner wall of the circulation chamber between the return air duct 14 and the supply air duct 15, and the partition plate is airtight. The lower end of the evaporator 3 is connected to the bottom wall of the circulation chamber, one side of the purification module d is connected to the inner wall of the circulation chamber away from the wall c, and the other side of the purification module d, the upper end of the evaporator, and the other side of the partition plate are connected. Thus, the air inlet chamber and the air outlet chamber are divided by the partition plate and the purification module. Since the partition plate is airtight, the solid gas flow can only pass through the purification module d, thereby flowing to the air outlet chamber 13, and finally flowing into the room again.

[0059] Please see the attached Figure 4 In summary, the operating modes of the integrated air conditioner of this embodiment include cooling mode, heating mode and fresh air mode. Specifically:

[0060] When the cooling or heating mode is turned on, the refrigeration system 2 operates, enabling the evaporator 3 to achieve cooling or heating. Simultaneously, under the action of the fan 4, the indoor air passes through the return air filter 9 to filter out impurities such as lint and dandruff, then flows along the return air duct 14 to the air inlet chamber 12. The air then passes through the purification module d to purify odor molecules and viruses and bacteria in the air. After cooling or heating the air through the evaporator 3, it is pressurized by the fan 4 and sent into the air supply duct 15. After passing through the rectifying grille 6, the rotating airflow is combed into a smooth airflow, and finally sent to the air guide vanes 71, achieving multi-angle air supply.

[0061] Compared to traditional split-type air conditioners, which, in cooling or heating mode, increase the temperature difference between the air conditioner's supply and return air to meet load requirements within a limited air volume to ensure maximum cooling or heating output, resulting in lower system efficiency and reduced comfort due to the large supply air temperature difference, the present invention creates a more uniform air flow field indoors, improving air supply comfort. It also uses the rotating mechanism of the channel guide vanes 71 to control the airflow direction, achieving cooling or heating in a localized microenvironment, making the entire system more energy-efficient.

[0062] Fresh air mode:

[0063] In spring and autumn, or when the outdoor air temperature and humidity are within a comfortable range and there is a need for indoor cooling, the refrigeration system 2 is turned off and the fan 4 is turned on. Fresh air passes through the rain cap 55, the coarse filter 52, the backflow prevention baffle 53, and the fine filter 54 in sequence, achieving preliminary filtration of the air before fine filtration to purify the air. The purified fresh air is pressurized by the fan 4 and evenly delivered to the room along the air supply duct 15, creating a slightly positive pressure air environment indoors, replacing the air in the room and simultaneously cooling the room to create a comfortable environment.

[0064] During this process, fan 4 provides the power source for introducing fresh air, and the fresh air volume can reach more than 50% of the circulating air volume of the whole machine. It has the function of regulating the indoor heat load by using only natural cold sources without turning on the refrigeration system, thereby achieving energy-saving operation.

[0065] Example 2

[0066] Compared with the first embodiment, the present embodiment differs from the first embodiment in that the return air duct 14 and the supply air duct 15 are provided at different locations and connected to the indoor environment. Specifically:

[0067] Please see the attached Figure 7 、 9 10. In this embodiment, the integrated air conditioner includes an air outlet duct 8 provided indoors, one end of the air outlet duct 8 is closed, and the other end of the air outlet duct 8 is connected to the air supply duct 15. A plurality of air guide components 7 are sequentially provided on the air outlet duct 8 along the air flow direction; the air guide component 7 has the same function and structure as the air guide component 7 of the first embodiment, including an air guide duct, wherein a plurality of air guide blades 71 are provided in the air guide duct to achieve multi-angle air supply. However, since the air outlet duct 8 is relatively long, the rotating airflow will become a smooth airflow in the air outlet duct 8, so the air rectifying grille 6 may not be provided in the air outlet duct 8. Of course, a air rectifying grille 6 may also be provided in the air outlet duct 8, and provided between the air supply duct 15 and the air guide component 7, to further ensure the smoothness of the airflow entering the room, thereby ensuring the comfort of the human body.

[0068] In addition, due to the single air outlet of traditional household split air conditioners, distributed air supply at multiple locations cannot be achieved, resulting in poor indoor air circulation, difficulty in achieving distributed air supply throughout the entire space, poor indoor airflow organization, and discomfort caused by cold and hot air. The present invention achieves multi-terminal indoor air supply by sequentially arranging multiple air guide assemblies 7 on the air outlet pipe 8 along the airflow direction. This not only increases the total cross-sectional area of the air outlet and realizes a distributed indoor air supply layout, but also avoids the high-speed cold airflow centralized air supply of traditional split air conditioners, thereby improving user comfort.

[0069] Furthermore, the integrated layout of the air conditioner of this invention, with no rotating parts inside the unit, produces less indoor noise when operating at high air volumes compared to split-unit air conditioners. Furthermore, high air volume operation not only improves overall system energy efficiency, thereby saving energy, but also increases indoor air temperature, improving indoor temperature comfort.

[0070] In this embodiment, the return air duct 14 is arranged on the side of the box body 1 close to the wall, and the supply air duct 15 is arranged at the upper end of the box body 1. The supply air duct 15 is provided with a purification module d at one end indoors. The purification module d has the same function as the purification module d in Example 1 and will not be described here. However, in this embodiment, the evaporator 3 directly divides the temperature control cavity into an air inlet cavity 12 and an air outlet cavity 13. The air inlet cavity 12 is connected to the return air duct 14, and the supply air duct 15 and the fresh air module 5 are both connected to the air outlet cavity 13. Specifically, the upper end of the evaporator 3 is connected to the upper inner wall of the circulation cavity, and the lower end of the evaporator 3 is connected to the lower inner wall of the circulation cavity. The fan 4 is arranged at the air inlet of the supply air duct 15. Under the action of the fan 4, the air flow in the room needs to pass through the evaporator 3 and flow into the supply air duct 15.

[0071] In addition, to ensure the cleanliness of the air, the integrated air conditioner also includes a return air duct a arranged indoors, one end of the return air duct a is connected to the return air duct 14 through a purification module d, and the other end of the return air duct a or the side wall of the return air duct a is provided with a return air filter 9. The functions of the purification module d and the return air filter 8 are the same as those in Example 1 and will not be repeated here.

[0072] Please see the attached Figure 8 Similarly, the working modes of the integrated air conditioner of this embodiment also include cooling mode, heating mode and fresh air mode. Specifically:

[0073] When the cooling or heating mode is turned on, the refrigeration system 2 is running, and the evaporator 3 can achieve cooling or heating. At the same time, under the action of the fan 4, the indoor air passes through the return air filter 9 to filter out impurities such as lint and dandruff in the air, and then flows along the return air duct a to the purification module d. Then, the odor molecules and viral bacteria in the air are purified by the purification module d. After the air is cooled or heated by the evaporator 3, it is pressurized by the fan 4 and sent to the outlet duct 8 through the air supply duct 15. In the outlet duct 8, the air is sent to the array-arranged air guide components 7. While reducing the terminal air supply speed, multiple air guide components 7 form a more uniform air flow field in the room, improving the air supply comfort.

[0074] In addition, you can also choose to open or close different air guide components 7 to achieve local micro-environment cooling or heating, making the operation of the entire machine more energy-efficient.

[0075] In spring and autumn, or when the outdoor air temperature and humidity are within a comfortable range and there is a need for indoor cooling, the refrigeration system 2 is turned off and the fan 4 is turned on. Fresh air passes through the rain cap 55, the coarse filter 52, the backflow prevention baffle 53, and the fine filter 54 in sequence, achieving preliminary filtration of the air before fine filtration to purify the air. The purified fresh air is pressurized by the fan 4 and evenly delivered to the room along the air outlet duct 8, forming a slightly positive pressure air environment indoors, replacing the air in the room and simultaneously cooling the room, creating a comfortable experience environment.

[0076] It should be noted that, in the description of this application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0078] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0079] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An integrated air conditioner, installed outdoors, characterized in that: include: The box body is partitioned into a circulation chamber and a temperature control chamber, and the circulation chamber is provided with a return air duct and an air supply duct connected to the room; A refrigeration system is provided in the temperature control chamber; an evaporator, disposed in the circulation chamber, connected to the refrigeration system, and disposed between the return air duct and the supply air duct; a fan, disposed in the circulation chamber and located between the air supply duct and the evaporator; A fresh air module is provided on the outer wall of the box body and is connected to the circulation cavity; Among them, when the refrigeration system is not working, under the action of the fan, fresh air passes through the fresh air module and the air supply duct to adjust the indoor heat and humidity load.

2. The integrated air conditioner according to claim 1, wherein: The refrigeration system includes a fan, a throttling device, a compressor and a four-way valve. The compressor is in cyclic communication with the four-way valve, and the four-way valve is also in cyclic communication with the evaporator, the throttling device and the fan in sequence.

3. The integrated air conditioner according to claim 1, wherein: The fresh air module includes a shell, in which a coarse filter, a backflow prevention baffle and a fine filter are arranged in sequence along the direction of airflow; The two ends of the shell are respectively an air outlet end and an air inlet end, and the air inlet end is provided with a rainproof cap.

4. The integrated air conditioner according to claim 3, wherein: The backflow prevention baffles include two symmetrically arranged ones, the backflow prevention baffles are inclined toward the horizontal plane, and the free ends thereof are arranged toward the direction close to the fine filter, and a vent is formed between the free ends of the two backflow prevention baffles; The angle between the backflow prevention baffle and the horizontal plane is a, and the value range of a is 25 to 35 degrees.

5. The integrated air conditioner according to claim 1, wherein: A rectifying grille is provided in the air supply duct, and an air guide assembly is provided at one end of the air supply duct facing the room; The air guide device includes an air guide pipe, and a plurality of air guide blades are arranged in the air guide pipe.

6. The integrated air conditioner according to any one of claims 1 to 5, characterized in that: The air outlet pipe comprises an air outlet pipe provided in the room, one end of the air outlet pipe is closed, the other end of the air outlet pipe is connected to the air supply duct, and a plurality of air guide components are sequentially provided on the air outlet pipe along the air flow direction; The air guide device includes an air guide pipe, and a plurality of air guide blades are arranged in the air guide pipe.

7. The integrated air conditioner according to any one of claims 1 to 5, characterized in that: The return air duct and the supply air duct are both arranged on a side of the box body close to the wall, and the return air duct is located above the supply air duct. A purification module is provided in the circulation cavity corresponding to the return air duct, and the purification module divides the temperature control cavity into an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the return air duct, and the supply air duct and the fresh air module are both connected to the air outlet cavity. The evaporator is arranged in the air outlet cavity.

8. The integrated air conditioner according to any one of claims 1 to 5, characterized in that: The return air duct is arranged on a side of the box body close to the wall, the supply air duct is arranged at the upper end of the box body, and a purification module is provided at one end of the supply air duct facing the room; The evaporator divides the temperature control cavity into an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the return air duct, and the air supply duct and the fresh air module are both connected to the air outlet cavity.

9. The integrated air conditioner according to any one of claims 1 to 5, characterized in that: The return air duct is provided with a return air filter at one end thereof; Alternatively, it further includes a return air duct arranged indoors, one end of the return air duct is connected to the return air duct through a purification module, and a return air filter is provided on the other end of the return air duct or the side wall of the return air duct.

10. The integrated air conditioner according to any one of claims 1 to 5, characterized in that: A control module is provided in the temperature control chamber, and the refrigeration system and the fan are both electrically connected to the control module.

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