Integrated air conditioning unit coupled with fresh air heat recovery function

Abstract

The utility model relates to an integrated air conditioning unit coupled with a fresh air heat recovery function. The integrated air conditioning unit comprises a shell, a first space, a second space and a fourth space. The first space is provided with an indoor heat exchanger, an air feeder, an air return port and an air supply port; the second space is provided with a heat recovery core body, a fresh air fan, an exhaust fan and a ventilation exhaust outlet; the third space is provided with an outdoor fan and a fresh air opening; and the fourth space is provided with an outdoor heat exchanger and an outdoor exhaust outlet. Thus, by means of the structure, the air conditioning unit achieves indoor airflow circulation, fresh air heat recovery circulation and outdoor airflow circulation. In addition, the air conditioning unit adopts the three-in-one design of air conditioning, fresh air and heat recovery, and the occupied area is reduced. Besides, heat exchange between indoor air and outdoor air is achieved through the heat recovery core body, waste heat in the indoor contaminated air can be fully recovered while the indoor contaminated air is exhausted, the waste heat is used for preheating or precooling fresh air about to enter a room, and energy consumption is reduced.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an integrated air conditioning unit with coupled fresh air heat recovery function. Background Technology

[0002] Air conditioning and fresh air systems are widely used in modern residential and commercial buildings. Air conditioning systems are mainly used to regulate indoor temperature and ensure comfort for living or working; while fresh air systems are responsible for introducing fresh air from the outside into the room while expelling stale air to ensure air quality and meet people's health needs.

[0003] However, in existing technologies, air conditioning systems and fresh air systems are usually designed as two independently operating systems. This separate design has several obvious drawbacks:

[0004] First, the need to install separate air conditioning and fresh air systems increases the floor space required for the equipment, and the costs are relatively high during installation and subsequent maintenance.

[0005] Secondly, under extreme weather conditions, such as high temperatures in summer or severe cold in winter, the fresh air system inevitably causes a significant loss of heat or cold energy during air exchange. To maintain the set indoor temperature, the air conditioning system must then consume additional energy to compensate for these losses, thus increasing overall energy consumption and accelerating wear and tear on the air conditioning equipment, shortening its lifespan. Utility Model Content

[0006] In view of the above-mentioned problems of the prior art, this application provides an integrated air conditioning unit with coupled fresh air heat recovery function, which adopts a three-in-one design of air conditioning, fresh air, and heat recovery, and has the advantages of compact structure, small footprint, and low energy consumption. To achieve the above objectives, the first aspect of this application provides an integrated air conditioning unit with coupled fresh air heat recovery function, including: a shell and four spaces divided from top to bottom within the shell:

[0007] The first space is equipped with an indoor heat exchanger, a supply fan, a return air vent, and a supply air vent. Indoor air is drawn in through the return air vent, passes through the supply fan, flows through the indoor heat exchanger for temperature regulation, and is then returned to the room through the supply air vent, forming an indoor airflow circulation.

[0008] The second space is equipped with a heat recovery core, a fresh air unit, an exhaust fan, and ventilation vents;

[0009] The third space is equipped with an outdoor fan and a fresh air inlet;

[0010] In this process, indoor polluted air enters the heat recovery core through the ventilation vent, while outdoor fresh air enters the heat recovery core through the fresh air inlet. The two exchange heat within the heat recovery core. The treated outdoor fresh air is then sent into the first space by the fresh air fan, and after being conditioned by the indoor heat exchanger, it is returned to the room through the air supply vent. The treated indoor polluted air is then discharged to the third space by the exhaust fan, and after being conditioned by the outdoor heat exchanger by the outdoor fan, it is discharged from the unit through the outdoor exhaust vent, forming a fresh air heat recovery cycle.

[0011] The fourth space is equipped with an outdoor heat exchanger and an outdoor exhaust vent. Fresh outdoor air is drawn in through the air inlet, passes through the outdoor fan, is conditioned by the outdoor heat exchanger, and is then discharged from the unit through the outdoor exhaust vent, forming an outdoor airflow circulation.

[0012] Thus, the air conditioning unit of this application adopts a three-in-one design of air conditioning, fresh air, and heat recovery, that is, integrating fresh air, heat recovery and air conditioning into a single device. Therefore, it reduces the floor space, makes the space layout more flexible, and improves the overall space utilization of the room. Moreover, the heat recovery core realizes the heat exchange between indoor and outdoor air. While exhausting indoor polluted air, it can fully recover the waste heat in it for preheating or precooling the fresh air that is about to enter the room. Therefore, it reduces energy consumption and improves the energy efficiency ratio of the air conditioning unit.

[0013] As one possible implementation of the first aspect, a connecting plate is provided between each pair of adjacent spaces, namely:

[0014] A first connecting plate is located between the first space and the second space, and ventilation holes are provided on it to allow treated fresh outdoor air to enter the first space from the second space.

[0015] The second connecting plate is located between the second space and the third space. The ventilation holes on it are used to allow the treated indoor polluted air to enter the third space from the second space, so as to complete the fresh air heat recovery cycle.

[0016] The third connecting plate, located between the third space and the fourth space, has ventilation holes that allow treated fresh outdoor air to enter the fourth space from the third space, and allow treated stale indoor air to enter the third and fourth spaces from the second space, so as to complete the fresh air heat recovery cycle and the outdoor airflow cycle.

[0017] In this way, the airflow between the various connecting plates and the ventilation holes arranged on them can be smooth, which helps to maintain the stable operation of the air conditioning unit.

[0018] As one possible implementation of the first aspect, the second space includes a left mounting area, a top right mounting area, and a bottom right mounting area;

[0019] The heat recovery core is pulled out and installed in the left installation area, the fresh air unit is fixedly installed in the upper right installation area, and the exhaust fan is fixedly installed in the lower right installation area;

[0020] The outlet of the fresh air fan is configured to correspond to the ventilation hole on the first connecting plate, and the outlet of the exhaust fan is configured to correspond to the ventilation hole on the second connecting plate.

[0021] In this way, the outlet of the fresh air unit is precisely aligned with the ventilation holes on the first connecting plate, ensuring that fresh air can smoothly enter the first space; similarly, the outlet of the exhaust fan is precisely aligned with the ventilation holes on the second connecting plate, facilitating exhaust. In other words, the alignment ensures that the airflow path in the air conditioning unit is the shortest and smoothest, reducing airflow resistance and energy loss to a certain extent.

[0022] As one possible implementation of the first aspect, the heat recovery core has a hexagonal structure; the left and right side planes of the heat recovery core are closely attached to the corresponding wall of the left installation area, and the positions of its upper and lower vertices are respectively in contact with the inner wall of the second space through angle irons.

[0023] Thus, the hexagonal structure of the heat recovery core has high strength and stability. In addition, the support and positioning of the angle iron make the heat recovery core more stable during installation and operation.

[0024] As one possible implementation of the first aspect, a first filter and a second filter are provided on one side of the heat recovery core;

[0025] The first filter is used to filter polluted indoor air;

[0026] The second filter is used to filter fresh outdoor air.

[0027] Thus, by setting a first filter and a second filter on one side of the heat recovery core, the impurity content in the air entering the heat recovery core is effectively reduced, avoiding blockage, wear or performance degradation caused by long-term contact with pollutants inside the heat recovery core, thereby extending the service life of the heat recovery core.

[0028] As one possible implementation of the first aspect, the return air vent includes side return air vents disposed on both sides of the first space and a front return air vent disposed on the front of the first space.

[0029] The air outlet includes a top air outlet located at the top of the first space and a front air outlet located at the front of the first space.

[0030] The ventilation vents include a front ventilation vent located on the front of the second space and a side ventilation vent located on the side of the second space.

[0031] The fresh air inlet includes a rear fresh air inlet located at the back of the third space and a side fresh air inlet located on the side of the third space.

[0032] The outdoor exhaust vents include a rear outdoor exhaust vent located at the rear of the fourth space and a side outdoor exhaust vent located on the side of the fourth space.

[0033] In this way, by setting return air vents, supply air vents, ventilation exhaust vents, fresh air vents, and outdoor exhaust vents in different locations and directions, the air conditioning unit can be flexibly adjusted according to different indoor environments, personnel activities, and seasonal changes to meet diverse usage needs and improve the applicability of the air conditioning unit.

[0034] As one possible implementation of the first aspect, when the integrated air conditioning unit is used for multi-room air supply, the top air outlet delivers air to each room through the indoor air supply duct, and the side return air outlet draws indoor air back to the air conditioning unit and exhausts it from the air conditioning unit through the indoor return air duct.

[0035] When the integrated air conditioning unit is used for single-room air supply, the front air supply vent and the front return air vent directly supply air into the room and draw air from the room.

[0036] Thus, the air conditioning unit of this application can be applied to scenarios of multi-room air supply or single-room air supply. Whether the air conditioning unit is directly embedded in the wall leading to the outside or installed inside the building, efficient and reliable air handling and distribution can be achieved through reasonable duct design and layout.

[0037] As one possible implementation of the first aspect, a cooling and heating system is provided inside the housing;

[0038] The refrigeration and heating system includes: a compressor, a four-way reversing valve, and an expansion valve;

[0039] The compressor is connected to the four-way reversing valve via a pipeline. The four-way reversing valve is also connected to the indoor heat exchanger and the outdoor heat exchanger via pipelines. The expansion valve is located in the indoor heat exchanger and the outdoor heat exchanger, and is connected to the indoor heat exchanger and the outdoor heat exchanger via pipelines.

[0040] Thus, the air conditioning unit of this application can switch between heating and cooling modes according to seasonal changes, ensuring a comfortable indoor environment throughout the year. Whether it is a cold winter or a hot summer, users can enjoy a suitable temperature, improving the comfort of their living and working environment.

[0041] As one possible implementation of the first aspect, the cooling and heating system further includes a spray system;

[0042] The spray system is configured to spray water mist onto the outdoor heat exchanger in cooling mode.

[0043] Thus, in the hot summer, the spray system can significantly improve the cooling capacity of the air conditioning unit, ensuring a stable cooling effect even in high-temperature environments.

[0044] As one possible implementation of the first aspect, the integrated air conditioning unit is a vertical design, with feet at the bottom of the housing and multiple fixing ears on both sides of the housing.

[0045] In this way, the feet at the bottom provide stable support, preventing the air conditioning unit from shaking during operation, especially in environments with high vibration, ensuring the stability of the equipment. Furthermore, the mounting ears allow installers to more easily adjust the position and angle of the air conditioning unit; that is, the mounting ears can easily fix the air conditioning unit in a specific location to meet the needs of different scenarios. Attached Figure Description

[0046] Figure 1 This is a layout diagram of the components of an air conditioning unit provided in this application;

[0047] Figure 2 This is a cross-sectional view of an air conditioning unit provided in this application;

[0048] Figure 3 This is a schematic diagram of the external structure of an air conditioning unit provided in this application;

[0049] Figure 4 This is a schematic diagram of a multi-room air supply system provided in this application;

[0050] Figure 5 This is a schematic diagram of a single-room air supply provided in this application;

[0051] Figure 6 This is a schematic diagram of a refrigeration and heating system provided in this application;

[0052] Figure 7 This is a schematic diagram of the airflow direction of an air conditioning unit provided in this application.

[0053] It should be understood that the dimensions and shapes of the blocks in the above structural diagrams are for reference only and should not constitute an exclusive interpretation of the embodiments of the present invention. The relative positions and inclusion relationships between the blocks presented in the structural diagrams are only schematic representations of the structural relationships between the blocks, and are not intended to limit the physical connection methods of the embodiments of the present invention. Detailed Implementation

[0054] The technical solutions provided in this application will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the system architecture and business scenarios provided in the embodiments of this application are mainly for illustrating possible implementations of the technical solutions of this application and should not be construed as the sole limitation on the technical solutions of this application. Those skilled in the art will recognize that the technical solutions provided in this application are equally applicable to similar technical problems as system architectures evolve and new business scenarios emerge.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0056] This application provides, as shown in the embodiments, Figure 1 As shown, it includes: a housing 100 and four spaces within the housing 100, divided from top to bottom:

[0057] The first space 101 is equipped with an indoor heat exchanger 10, a blower 1, a return air vent, and an air outlet; wherein, indoor air is drawn in through the return air vent, passes through the blower 1, flows through the indoor heat exchanger 10 for temperature regulation, and is then sent back to the room through the air outlet, forming an indoor airflow circulation.

[0058] The second space 102 is equipped with a heat recovery core 5, a fresh air unit 2, an exhaust fan 3, and an air exchange and exhaust vent.

[0059] The third space 103 is equipped with an outdoor fan 4 and a fresh air inlet;

[0060] In this process, indoor polluted air enters the heat recovery core 5 through the ventilation exhaust vent, while outdoor fresh air enters the heat recovery core 5 through the fresh air inlet. The two exchange heat within the heat recovery core 5. The treated outdoor fresh air is then sent into the first space 101 by the fresh air fan 2, and after temperature adjustment by the indoor heat exchanger 10, it is sent back into the room through the air supply vent. The treated indoor polluted air is then discharged to the third space 103 by the exhaust fan 3, and after temperature adjustment by the outdoor heat exchanger 11 after passing through the outdoor fan 4, it is discharged from the unit through the outdoor exhaust vent, forming a fresh air heat recovery cycle.

[0061] The fourth space 104 is equipped with an outdoor heat exchanger 11 and an outdoor exhaust vent; wherein, fresh outdoor air is drawn in through the fresh air vent, passes through the outdoor fan 4, is regulated by the outdoor heat exchanger 11, and is then discharged from the unit through the outdoor exhaust vent, forming an outdoor airflow circulation.

[0062] Thus, the air conditioning unit of this application adopts a three-in-one design of air conditioning, fresh air, and heat recovery, that is, integrating fresh air, heat recovery and air conditioning into a single device. Therefore, it reduces the floor space, makes the space layout more flexible, and improves the overall space utilization of the room. In addition, the heat recovery core 5 realizes the heat exchange between indoor and outdoor air. While exhausting indoor polluted air, it can fully recover the waste heat in it for preheating or precooling the fresh air that is about to enter the room. Therefore, it reduces energy consumption and improves the energy efficiency ratio of the air conditioning unit.

[0063] In addition, the air conditioning unit of this application is designed as an integrated unit, which has the characteristics of rapid deployment. It is flexible and convenient in the installation and dismantling process, and requires less engineering work. It is especially suitable for places that require large-scale deployment, such as prefabricated houses, apartments, and hotel rooms.

[0064] For example, the indoor heat exchanger 10 can be a finned tube heat exchanger, a plate heat exchanger, or a spiral tube heat exchanger, used to regulate the indoor air temperature according to cooling / heating requirements. The outdoor heat exchanger 11 also serves as a preheating / precooling device, employing a similar structure to the indoor heat exchanger 10, but is designed to handle outdoor air.

[0065] Furthermore, the heat recovery core 5 material can be made of high-efficiency heat exchange materials, such as aluminum foil, plastic film or graphite composite material, to improve energy recovery efficiency.

[0066] In some embodiments, such as Figure 2 As shown, connecting plates are installed between adjacent spaces, namely:

[0067] The first connecting plate 105 is located between the first space 101 and the second space 102, and the ventilation hole 108 opened on it is used to allow the treated outdoor fresh air to enter the first space 101 from the second space 102.

[0068] The second connecting plate 106 is located between the second space 102 and the third space 103. The ventilation hole 108 opened on it is used to allow the treated indoor polluted air to enter the third space 103 from the second space 102 so as to complete the fresh air heat recovery cycle.

[0069] The third connecting plate 107 is located between the third space 103 and the fourth space 104. The ventilation hole 108 opened on it is used to allow treated outdoor fresh air to enter the fourth space 104 from the third space 103, and to allow treated indoor stale air to enter the third space 103 and the fourth space 104 from the second space 102, so as to complete the fresh air heat recovery cycle and the outdoor airflow cycle.

[0070] Thus, through the design of each connecting plate and the ventilation holes 108 arranged on it, the airflow between each space can flow smoothly, which is conducive to maintaining the stable operation of the air conditioning unit.

[0071] In some embodiments, the second space 102 includes a left mounting area, a top right mounting area, and a bottom right mounting area;

[0072] The heat recovery core 5 is pulled out and installed in the left installation area, the fresh air unit 2 is fixedly installed in the upper right installation area, and the exhaust fan 3 is fixedly installed in the lower right installation area;

[0073] The outlet of the fresh air fan 2 is correspondingly set with the ventilation hole 108 on the first connecting plate 105, and the outlet of the exhaust fan 3 is correspondingly set with the ventilation hole 108 on the second connecting plate 106.

[0074] Thus, the outlet of the fresh air unit 2 is precisely aligned with the ventilation hole 108 on the first connecting plate 105, ensuring that fresh air can smoothly enter the first space 101; similarly, the outlet of the exhaust fan 3 is precisely aligned with the ventilation hole 108 on the second connecting plate 106, facilitating exhaust. In other words, the alignment ensures that the airflow path in the air conditioning unit is the shortest and smoothest, reducing airflow resistance and energy loss to a certain extent.

[0075] In some embodiments, the heat recovery core 5 has a hexagonal structure; the left and right side planes of the heat recovery core 5 are closely attached to the corresponding wall surface of the left installation area, and the positions of its upper and lower vertices are in contact with the inner wall of the second space 102 through angle irons 109.

[0076] Among them, angle iron 109, as a sturdy metal structural component, is used to support the upper and lower vertices of the heat recovery core 5 and ensure its precise positioning to prevent the heat recovery core 5 from shifting during installation or operation.

[0077] Thus, the hexagonal heat recovery core 5 has high strength and stability. In addition, the support and positioning of the angle iron 109 make the heat recovery core 5 more stable during installation and operation.

[0078] It is worth noting that the heat recovery core 5 is designed to be installed or removed not only by pulling it out, but also by rotating 180° around its center point. This design allows the heat recovery core 5 to be flexibly connected to the left or right side of the duct during installation, depending on actual needs, to meet the requirements of different scenarios and improve design flexibility.

[0079] In some embodiments, a first filter 6 and a second filter 7 are provided on one side of the heat recovery core 5;

[0080] The first filter 6 is used to filter polluted indoor air;

[0081] The second filter 7 is used to filter fresh outdoor air.

[0082] Specifically, the first filter 6 is dedicated to filtering polluted indoor air, effectively removing dust, pollen, bacteria, and other pollutants from the air, preventing these harmful substances from being reintroduced into the room during the heat recovery process, thereby significantly improving the cleanliness and health level of indoor air. The second filter 7 is dedicated to filtering fresh outdoor air, blocking dust, particulate matter, and other impurities from the outside when introducing fresh air, ensuring that the air entering the room is pure and unpolluted, further enhancing the freshness and comfort of indoor air.

[0083] Thus, by setting a first filter 6 and a second filter 7 on one side of the heat recovery core 5, the impurity content in the air entering the heat recovery core 5 is effectively reduced, avoiding blockage, wear or performance degradation inside the heat recovery core 5 due to long-term contact with pollutants, thereby extending the service life of the heat recovery core 5.

[0084] In some embodiments, such as Figure 3 As shown, the return air vent includes side return air vents 14 disposed on both sides of the first space 101 and front return air vent 15 disposed on the front of the first space 101.

[0085] The air outlet includes a top air outlet 12 disposed at the top of the first space 101 and a front air outlet 13 disposed at the front of the first space 101.

[0086] The ventilation vents include a front ventilation vent 16 located on the front of the second space 102 and a side ventilation vent 17 located on the side of the second space 102.

[0087] The fresh air inlets include a rear fresh air inlet 20 disposed on the back of the third space 103 and a side fresh air inlet 18 disposed on the side of the third space 103.

[0088] The outdoor exhaust vents include a rear outdoor exhaust vent 21 located on the back of the fourth space 104 and a side outdoor exhaust vent 19 located on the side of the fourth space 104.

[0089] It is worth mentioning that the location of the side fresh air vent 18 can be set on both sides of the second space, on both sides of the third space, or at the connection between the second and third spaces. The specific location can be set according to the actual situation, and no specific limitation is made here.

[0090] In this way, by setting return air vents, supply air vents, ventilation exhaust vents, fresh air vents, and outdoor exhaust vents in different locations and directions, the air conditioning unit can be flexibly adjusted according to different indoor environments, personnel activities, and seasonal changes to meet diverse usage needs and improve the applicability of the air conditioning unit.

[0091] In some embodiments, such as Figure 4 As shown, when the integrated air conditioning unit is used for multi-room air supply, the top air outlet 12 delivers air to each room through the indoor air supply duct, and the side return air outlet 14 draws indoor air back to the air conditioning unit and exhausts it from the air conditioning unit through the indoor return air duct.

[0092] like Figure 5 As shown, when the integrated air conditioning unit is used for single-room air supply, the front air supply vent 13 and the front return air vent 15 directly supply air into the room and draw air from the room.

[0093] Regardless of whether it's multi-room or single-room air supply, the installation of the air conditioning unit can be categorized into the following two situations:

[0094] Scenario 1: If the air conditioning unit is installed directly on the wall leading to the outside, the unit can directly intake and exhaust air using the opening in the wall without the need for additional ductwork. Therefore, this method simplifies the installation process, reduces the use of ductwork, and lowers costs.

[0095] Scenario 2: The air conditioning unit is installed inside the building. Since it cannot directly connect to the outside environment, it needs to be connected to ductwork for air intake and exhaust. The ductwork can bring outdoor air into the unit and exhaust the treated air from the unit to the outside. Therefore, although this method increases the complexity of installation, it provides greater installation flexibility, allowing the unit to be installed in any location within the building.

[0096] In summary, the air conditioning unit of this application is compatible with multiple air supply and exhaust methods. Depending on the installation location, it can be selected to supply / exhaust air directly or to supply / exhaust air using ductwork.

[0097] Thus, the air conditioning unit of this application can be applied to scenarios of multi-room air supply or single-room air supply. Whether the air conditioning unit is directly embedded in the wall leading to the outside or installed inside the building, efficient and reliable air handling and distribution can be achieved through reasonable duct design and layout.

[0098] In some embodiments, such as Figure 6 As shown, a cooling and heating system is provided inside the housing 100;

[0099] The refrigeration and heating system includes: a compressor, a four-way reversing valve, and an expansion valve;

[0100] The compressor is connected to the four-way reversing valve via a pipeline. The four-way reversing valve is also connected to the indoor heat exchanger 10 and the outdoor heat exchanger 11 via pipelines. The expansion valve is located at the indoor heat exchanger 10 and the outdoor heat exchanger 11, and is connected to the indoor heat exchanger 10 and the outdoor heat exchanger 11 via pipelines.

[0101] Specifically, in cooling mode, the workflow is roughly as follows: The compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant. After passing through the four-way reversing valve, the high-temperature, high-pressure gaseous refrigerant enters the outdoor heat exchanger (i.e., the condenser), where it is cooled and condensed into liquid refrigerant. When the liquid refrigerant passes through the expansion valve, its pressure and temperature are further reduced due to the throttling effect, becoming a low-temperature, low-pressure liquid refrigerant ready to enter the evaporator. In the evaporator, the low-temperature, low-pressure liquid refrigerant absorbs heat from the indoor air and evaporates, becoming a low-temperature, low-pressure gaseous refrigerant. The evaporated low-temperature, low-pressure gaseous refrigerant returns to the compressor through the return gas pipe, forming a refrigeration cycle.

[0102] In heating mode, the workflow is roughly as follows: the compressor is also responsible for compressing the refrigerant, but in heating mode, the refrigerant flows in the opposite direction to the cooling mode. That is, a four-way reversing valve is used to change the flow direction of the refrigerant. The high-temperature and high-pressure gaseous refrigerant releases heat to the indoor air in the indoor heat exchanger 10, which raises the indoor temperature. The expansion valve is also used to reduce the pressure and temperature of the refrigerant. The low-temperature and low-pressure liquid refrigerant absorbs heat from the outdoor air and evaporates in the outdoor heat exchanger 11. The evaporated low-temperature and low-pressure gaseous refrigerant returns to the compressor, forming a heating cycle.

[0103] The compressor can be found here. Figure 1 Number 8 in the text, but Figure 1 Not all components of the refrigeration and heating system were fully displayed.

[0104] Thus, the air conditioning unit of this application can switch between heating and cooling modes according to seasonal changes, ensuring a comfortable indoor environment throughout the year. Whether it is a cold winter or a hot summer, users can enjoy a suitable temperature, improving the comfort of their living and working environment.

[0105] In some embodiments, the cooling and heating system further includes a spray system;

[0106] The spray system is configured to spray water mist onto the outdoor heat exchanger 11 in cooling mode.

[0107] Thus, in the hot summer, the spray system can significantly improve the cooling capacity of the air conditioning unit, ensuring a stable cooling effect even in high-temperature environments.

[0108] For example, a spray system may include, but is not limited to, the following components: water source, water pump, and atomizing device;

[0109] The atomizing device typically consists of one or more nozzles that convert water into fine water mist particles. These nozzles can be designed with different spray patterns, such as cone sprays or fan sprays, to accommodate different heat exchanger shapes and sizes.

[0110] The working principle of the spray system is as follows: In cooling mode, when the temperature of the outdoor heat exchanger (i.e., the condenser) is too high, the spray system will be activated, and fine water mist particles will be sprayed onto the surface of the condenser. The temperature of the condenser will be reduced by utilizing the principle of heat absorption through water evaporation, thereby improving the cooling efficiency.

[0111] It is worth noting that the spray cooling function of the misting system is only activated during summer cooling to avoid wasting energy when not needed.

[0112] In some embodiments, the integrated air conditioning unit is designed vertically, with feet 23 at the bottom of the housing 100 and multiple fixing ears 22 on both sides of the housing 100.

[0113] Specifically, the fixing ears 22 are evenly distributed on both sides of the housing 100 to ensure that the air conditioning unit is subjected to uniform force during installation and to avoid structural damage caused by local stress concentration.

[0114] The position and number of the foot 23 and the fixing ear 22 can be flexibly adjusted according to specific needs to adapt to different installation environments and requirements.

[0115] Thus, the base feet 23 provide stable support, preventing the air conditioning unit from shaking during operation, especially in environments with high vibration, ensuring the stability of the equipment. Furthermore, the design of the mounting ears 22 makes it easier for installers to adjust the position and angle of the air conditioning unit. In other words, the mounting ears 22 can easily fix the air conditioning unit in a specific location, such as on a wall in a building or equipment room, or inside a closet, to meet the needs of different scenarios.

[0116] It is worth noting that the integrated air conditioning unit can be designed vertically, or flexibly installed in a ceiling or wall-mounted configuration, offering diverse installation options to meet different needs and seamlessly integrating with architectural styles for a more aesthetically pleasing look. When ceiling-mounted or wall-mounted, the unit's structure is adjusted accordingly, eliminating the base feet 23 and requiring only hanging lugs or other suitable fixing devices to ensure a secure installation on the ceiling or wall. Despite the changes in installation method and external structure, the core operating principles of cooling, heating, and air circulation within the air conditioning unit remain unchanged regardless of the installation method.

[0117] Therefore, by changing the structural form and component layout of the air conditioning unit, it is possible to design various types of air conditioning units, such as floor-standing, wall-mounted, ceiling-mounted, and outdoor-installed types, all of which fall within the scope of this application.

[0118] In some embodiments, the housing 100 uses sheet metal as the unit frame, has a detachable maintenance door on the outside, and the internal components are modularly designed.

[0119] Thus, a series of key components in this application, such as the supply fan 1, fresh air unit 2, exhaust fan 3, outdoor fan 4, heat recovery core 5, and compressor, can all be maintained and repaired from the front inside the room. This design greatly facilitates technicians in debugging, diagnosing, and troubleshooting the system in an indoor environment.

[0120] In some embodiments, the housing 100 further includes a control box 9, which is electrically connected to devices such as the blower 1, the fresh air unit 2, the exhaust fan 3, and the outdoor fan 4, and is used to control the start and stop of these devices.

[0121] The following section, in conjunction with the above structural description, combines... Figure 7 The working principle of the air conditioning unit described in this application is described below:

[0122] The air conditioning unit of this application integrates indoor airflow circulation, fresh air heat recovery circulation, outdoor airflow circulation, and cooling and heating functions.

[0123] Indoor air is drawn in through the return air vent, and the supply fan 1 provides power to guide the air drawn in through the return air vent to the indoor heat exchanger 10. The air, after being conditioned at the temperature, is then sent back into the room through the supply air vent, thus completing the indoor airflow circulation.

[0124] Stale indoor air is introduced through exhaust fan 3, filtered by first filter 6, and then exchanged with fresh air in heat recovery core 5. After heat exchange, the stale air is sent to exhaust fan 3 and discharged to third space 103. After passing through outdoor fan 4, it flows through outdoor heat exchanger 11 for temperature regulation and is discharged from the unit through outdoor exhaust vent. At the same time, fresh air is introduced into the air conditioning unit by fresh air fan 2, filtered by second filter 7, and then exchanged with indoor exhaust air through heat recovery core 5. After pre-treatment, the fresh air is mixed with indoor return air and sent to indoor heat exchanger 10 by supply fan 1 for heating or cooling. Finally, it is sent back into the room through air supply vent, completing the fresh air heat recovery cycle.

[0125] After the fresh air unit 2 introduces fresh outdoor air into the air conditioning unit, the outdoor fan 4 provides power to guide the intake air to the outdoor heat exchanger 11. The air, after being conditioned at the temperature, is discharged through the outdoor exhaust vent, completing the outdoor airflow circulation.

[0126] Outdoor fresh air is drawn in through the fresh air inlet, passes through the outdoor fan 4, is conditioned by the outdoor heat exchanger 11, and is then discharged from the unit through the outdoor exhaust outlet, forming an outdoor airflow circulation.

[0127] Furthermore, the terms "first, second, third, etc." or similar terms such as module A, module B, and module C used in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that, where permissible, a specific order or sequence may be interchanged so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0128] The term "comprising" as used in the specification and claims should not be construed as limiting itself to what follows; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the mentioned feature, integral, step, or component, but does not exclude the presence or addition of one or more other features, integrals, steps, or components, or groups thereof. Thus, the statement "device comprising means A and B" should not be limited to a device consisting solely of components A and B.

[0129] The terms "an embodiment" or "an embodiment" as used in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in at least one embodiment of this application. Therefore, the terms "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics can be combined in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0130] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application, all of which fall within the scope of protection of this application.

Claims

1. An integrated air conditioning unit with coupled fresh air heat recovery function, characterized in that, include: The housing (100) and the four spaces within the housing (100) divided from top to bottom: The first space (101) is equipped with an indoor heat exchanger (10), a blower (1), a return air vent and an air outlet; wherein, indoor air is drawn in through the return air vent, flows through the blower (1) and then through the indoor heat exchanger (10) for temperature regulation, and is then sent back to the room through the air outlet to form an indoor airflow circulation. The second space (102) is equipped with a heat recovery core (5), a fresh air unit (2), an exhaust fan (3) and an air exchange and exhaust vent; The third space (103) is equipped with an outdoor fan (4) and a fresh air inlet; In this process, indoor polluted air enters the heat recovery core (5) through the ventilation exhaust vent, while outdoor fresh air enters the heat recovery core (5) through the fresh air inlet. The two exchange heat within the heat recovery core (5). The treated outdoor fresh air is then sent into the first space (101) by the fresh air fan (2), and after temperature adjustment by the indoor heat exchanger (10), it is sent back to the room through the air outlet. The treated indoor polluted air is then discharged to the third space (103) by the exhaust fan (3), and after temperature adjustment by the outdoor heat exchanger (11) by the outdoor fan (4), it is discharged from the unit through the outdoor exhaust vent, forming a fresh air heat recovery cycle. The fourth space (104) is equipped with an outdoor heat exchanger (11) and an outdoor exhaust vent; wherein, fresh outdoor air is drawn in through the fresh air vent, passes through the outdoor fan (4), and then is regulated by the outdoor heat exchanger (11) before being discharged from the unit through the outdoor exhaust vent, forming an outdoor airflow circulation.

2. The integrated air conditioning unit according to claim 1, characterized in that, Connecting panels are installed between adjacent spaces, namely: The first connecting plate (105) is located between the first space (101) and the second space (102), and the ventilation hole (108) on it is used to allow treated fresh outdoor air to enter the first space (101) from the second space (102). The second connecting plate (106) is located between the second space (102) and the third space (103), and the ventilation hole (108) on it is used to allow the treated indoor polluted air to enter the third space (103) from the second space (102) so as to complete the fresh air heat recovery cycle; The third connecting plate (107) is located between the third space (103) and the fourth space (104). The ventilation hole (108) on it is used to allow the treated outdoor fresh air to enter the fourth space (104) from the third space (103) and to allow the treated indoor polluted air to enter the third space (103) and the fourth space (104) from the second space (102) so as to complete the fresh air heat recovery cycle and the outdoor airflow cycle.

3. The integrated air conditioning unit according to claim 2, characterized in that, The second space (102) includes a left mounting area, a top right mounting area, and a bottom right mounting area; The heat recovery core (5) is pulled out and installed in the left installation area, the fresh air fan (2) is fixedly installed in the upper right installation area, and the exhaust fan (3) is fixedly installed in the lower right installation area; The outlet of the fresh air fan (2) is provided in correspondence with the ventilation hole (108) on the first connecting plate (105), and the outlet of the exhaust fan (3) is provided in correspondence with the ventilation hole (108) on the second connecting plate (106).

4. The integrated air conditioning unit according to claim 3, characterized in that, The heat recovery core (5) has a hexagonal structure; the left and right side planes of the heat recovery core (5) are closely attached to the corresponding wall surface of the left installation area, and the positions of its upper and lower vertices are respectively in contact with the inner wall of the second space (102) through angle iron (109).

5. The integrated air conditioning unit according to claim 4, characterized in that, A first filter (6) and a second filter (7) are provided on one side of the heat recovery core (5); The first filter (6) is used to filter indoor polluted air; The second filter (7) is used to filter fresh outdoor air.

6. The integrated air conditioning unit according to claim 1, characterized in that, The return air vents include side return air vents (14) disposed on both sides of the first space (101) and front return air vents (15) disposed on the front of the first space (101). The air outlets include a top air outlet (12) disposed at the top of the first space (101) and a front air outlet (13) disposed at the front of the first space (101). The ventilation vents include a front ventilation vent (16) located on the front of the second space (102) and a side ventilation vent (17) located on the side of the second space (102). The fresh air inlets include a rear fresh air inlet (20) located on the back of the third space (103) and a side fresh air inlet (18) located on the side of the third space (103). The outdoor exhaust vents include a rear outdoor exhaust vent (21) located on the back of the fourth space (104) and a side outdoor exhaust vent (19) located on the side of the fourth space (104).

7. The integrated air conditioning unit according to claim 6, characterized in that, When the integrated air conditioning unit is used for multi-room air supply, the top air outlet (12) delivers air to each room through the indoor air supply pipe, and the side return air outlet (14) draws indoor air back to the air conditioning unit and discharges it from the air conditioning unit through the indoor return air pipe. When the integrated air conditioning unit is used for single-room air supply, the front air supply vent (13) and the front return air vent (15) directly supply air into the room and draw air from the room.

8. The integrated air conditioning unit according to claim 1, characterized in that, A refrigeration and heating system is provided inside the housing (100); The refrigeration and heating system includes: a compressor, a four-way reversing valve, and an expansion valve; The compressor is connected to the four-way reversing valve via a pipeline. The four-way reversing valve is also connected to the indoor heat exchanger (10) and the outdoor heat exchanger (11) via pipelines. The expansion valve is located in the indoor heat exchanger (10) and the outdoor heat exchanger (11), and is connected to the indoor heat exchanger (10) and the outdoor heat exchanger (11) via pipelines.

9. The integrated air conditioning unit according to claim 8, characterized in that, The refrigeration and heating system also includes a spray system; The spray system is configured to spray water mist onto the outdoor heat exchanger (11) in cooling mode.

10. The integrated air conditioning unit according to claim 1, characterized in that, The integrated air conditioning unit is designed vertically, with feet (23) at the bottom of the housing (100) and multiple fixing ears (22) on both sides of the housing (100).

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