An integrated heat exchange fresh air conditioning unit

Abstract

This application discloses an integrated heat exchange fresh air conditioning unit, comprising: a unit cabinet with an indoor air supply outlet, an indoor return air outlet, an indoor exhaust air outlet, an outdoor fresh air inlet, and an outdoor exhaust air outlet; a heat pump system including an evaporator, a condenser, and a compressor; a fresh air system including a heat exchange core disposed between the evaporator and compressor inside the unit cabinet; and an intelligent control system disposed within the unit cabinet. The indoor return air outlet is sequentially connected to the evaporator and the indoor air supply outlet via a duct formed within the unit cabinet; the indoor exhaust air outlet is sequentially connected to the fresh air system, the condenser, and the outdoor exhaust air outlet via a duct formed within the unit cabinet; and the outdoor fresh air inlet is sequentially connected to the fresh air system, the evaporator, and the indoor air supply outlet via a duct formed within the unit cabinet. This equipment satisfies the cooling or heating and air supply functions for both indoor and outdoor fresh air, reduces construction difficulty, and improves space utilization.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of air conditioning technology. More specifically, this utility model relates to an integrated heat exchange fresh air conditioning unit. Background Technology

[0002] With the acceleration of urbanization and the improvement of people's living standards, the requirements for indoor air quality in civil buildings are increasing. To meet the comfort needs of residential and office settings, heating, cooling, and ventilation have become the core of building environment control. Traditional natural ventilation methods are limited by the outdoor environment (such as air pollution and noise) and cannot meet the airtightness and comfort requirements of modern buildings. Therefore, air conditioning systems and fresh air systems have gradually become the main means of indoor air conditioning in civil buildings. They respectively achieve temperature regulation and air quality improvement, jointly ensuring the livability of the indoor environment.

[0003] In existing technologies, air conditioning systems are split-type, consisting of an indoor unit (wall-mounted or floor-standing) and an outdoor unit. The outdoor unit is typically mounted on the building facade or in a dedicated location, while the indoor unit regulates indoor temperature and humidity through air vents. However, air conditioning systems require complex processes such as vacuuming, pressure testing, and refrigerant charging during installation, relying on professional personnel. Furthermore, the outdoor unit's exposure on the facade affects the building's aesthetics. Fresh air handling units are typically ceiling-mounted, placed below the indoor ceiling, and connected to an outdoor fresh air inlet via ductwork to achieve indoor-outdoor air exchange. However, ceiling-mounted fresh air handling units occupy floor height, reducing indoor space utilization, and their complex ductwork layout increases construction difficulty and cost. Utility Model Content

[0004] To address one or more of the technical problems mentioned above, this utility model provides an integrated heat exchange fresh air conditioning unit that can meet the functions of indoor heating in winter and cooling in summer, and can also meet the functions of outdoor fresh air filtration, cooling or heating, reducing construction difficulty and improving space utilization.

[0005] This utility model provides an integrated heat exchange fresh air conditioning unit, comprising: a unit cabinet with an indoor air supply outlet, an indoor return air outlet, an indoor exhaust air outlet, an outdoor fresh air inlet, and an outdoor exhaust air outlet; and, disposed within the unit cabinet: a heat pump system including an evaporator unit, a condenser unit, and a compressor unit connecting the evaporator unit and the condenser unit; a fresh air system including a heat exchange core disposed between the evaporator unit and the compressor unit inside the unit cabinet; and an intelligent control system disposed within the unit cabinet for electrical connection with the heat pump system and the fresh air system. The indoor return air outlet is sequentially connected to the evaporator unit and the indoor air supply outlet via a duct formed within the unit cabinet; the indoor exhaust air outlet is sequentially connected to the fresh air system, the condenser unit, and the outdoor exhaust air outlet via a duct formed within the unit cabinet; and the outdoor fresh air inlet is sequentially connected to the fresh air system, the evaporator unit, and the indoor air supply outlet via a duct formed within the unit cabinet.

[0006] In some embodiments, the heat exchange core includes: a first air inlet side connected to an indoor exhaust vent; a second air inlet side connected to an outdoor fresh air inlet; a first air outlet side connected to the second air inlet side; and a second air outlet side connected to the first air inlet side. The fresh air system further includes a fresh air supply fan and a fresh air exhaust fan. The fresh air supply fan is located on the first air outlet side and is connected to the evaporator unit. The fresh air exhaust fan is located on the second air outlet side and is connected to the condenser unit.

[0007] In some embodiments, an exhaust filter is provided on the first air inlet side of the heat exchange core, and a fresh air filter is provided on the second air inlet side of the heat exchange core.

[0008] In some embodiments, the evaporator unit includes: an evaporator disposed at the top of the unit cabinet and connected to an indoor air supply outlet; and an evaporator fan disposed below the evaporator and used to connect an indoor return air outlet and the evaporator.

[0009] In some embodiments, the condensing unit includes: a condensing fan disposed at the bottom of the unit cabinet and connected to an outdoor exhaust outlet; and a condenser disposed above the condensing fan and used to connect the fresh air system and the condensing fan.

[0010] In some embodiments, the compressor unit includes a compressor disposed above the condenser, a four-way reversing valve is provided on the compressor's discharge pipe, and the evaporator, compressor and condenser are connected in sequence.

[0011] In some embodiments, the heat pump system further includes an electronic expansion valve disposed on one side of the compressor, wherein the compressor, condenser, electronic expansion valve, evaporator, and compressor are connected in a loop.

[0012] In some embodiments, multiple indoor return air inlets, outdoor fresh air inlets, and outdoor exhaust air outlets are provided.

[0013] In some embodiments, an auxiliary heating device is also included, which is disposed in the indoor air outlet and is electrically connected to the intelligent control system.

[0014] In some embodiments, the intelligent control system includes a control module mounted on the unit cabinet and a display control screen electrically connected to the control module.

[0015] The integrated heat exchange fresh air conditioning unit, as described above, combines the air conditioning system and the fresh air system, offering the following advantages: 1) The unit can provide indoor heating in winter and cooling in summer, as well as outdoor fresh air filtration, cooling, or heating; 2) The entire unit is installed indoors, eliminating the need for an outdoor unit, thus saving installation space, reducing installation difficulty, and improving aesthetics; 3) The installation process eliminates complex procedures such as vacuuming, pressure testing, and refrigerant charging, further simplifying installation; 4) The unit also enables indoor exhaust and fresh air heat exchange and heat recovery, with integrated system control, intelligent regulation, and energy-efficient operation. Attached Figure Description

[0016] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0017] Figure 1 This is a schematic front view of the integrated heat exchange fresh air conditioning unit according to an embodiment of the present utility model, which shows the internal structure.

[0018] Figure 2 This is a rear view schematic diagram of the integrated heat exchange fresh air conditioning unit according to an embodiment of the present utility model, which shows the internal structure;

[0019] Figure 3 The diagram shows the airflow in the cooling and heating modes of the integrated heat exchange fresh air conditioning unit according to an embodiment of the present invention.

[0020] Figure 4 This diagram illustrates the airflow pattern of the fresh air heat recovery mode in the integrated heat exchange fresh air conditioning unit according to an embodiment of the present invention.

[0021] Figure 5 The diagram illustrates the airflow in either the cooling mode or the heating mode + fresh air heat recovery mode of the integrated heat exchange fresh air conditioning unit according to an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0023] Figure 1 A front view schematic diagram of the structure of an integrated heat exchange fresh air conditioning unit 100 according to an embodiment of the present utility model is shown, in which the internal structure is shown. Figure 2 A rear view schematic diagram of the structure of an integrated heat exchange fresh air conditioning unit 100 according to an embodiment of the present invention is shown, illustrating the internal structure. (See diagram below.) Figure 1 and Figure 2 As shown, the integrated heat exchange fresh air conditioning unit 100 includes: a unit cabinet 10, on which an indoor air supply outlet 11, an indoor return air outlet 12, an indoor exhaust air outlet 13, an outdoor fresh air inlet 14, and an outdoor exhaust air outlet 15 are provided; and, disposed within the unit cabinet 10: a heat pump system 20, which includes an evaporator unit 21, a condenser unit 22, and a compressor unit 23 connecting the evaporator unit 21 and the condenser unit 22; a fresh air system 30, which includes a heat exchange core 31, which is disposed between the evaporator unit 21 and the compressor unit 23 inside the unit cabinet 10; and an intelligent control system 40, which is disposed within the unit cabinet 10 and is used for electrical connection with the heat pump system 20 and the fresh air system 30. The indoor return air vent 12 is connected to the evaporator unit 21 and the indoor air supply vent 11 in sequence through the air duct formed inside the unit cabinet 10; the indoor exhaust vent 13 is connected to the fresh air system 30, the condenser unit 22 and the outdoor exhaust outlet 15 in sequence through the air duct formed inside the unit cabinet 10; and the outdoor fresh air inlet 14 is connected to the fresh air system 30, the evaporator unit 21 and the indoor air supply vent 11 in sequence through the air duct formed inside the unit cabinet 10.

[0024] In specific use, the integrated heat exchange fresh air conditioning unit 100 according to an embodiment of this utility model, in the heat pump system 20, the compressor unit 23 compresses the refrigerant into high-temperature, high-pressure refrigerant vapor. The refrigerant vapor enters the condenser unit 22 and exchanges heat with the air passing through the condenser unit 22, then becomes a low-temperature, high-pressure refrigerant liquid, simultaneously heating the air passing through the condenser unit 22. The low-temperature, low-pressure refrigerant liquid then enters the evaporator unit 21. Due to the low refrigerant pressure, it exchanges heat with the air passing through the evaporator unit 21, and the refrigerant liquid absorbs heat from the air and flashes into gas, cooling the air passing through the evaporator unit 21 in this process. Based on this:

[0025] 1) Cooling mode. For example... Figure 1 and Figure 3 As shown, when operating in cooling mode, the heat pump system 20 is activated. Indoor air is cooled by heat exchange through the evaporator unit 21 after passing through the indoor return air vent 12, and then supplied into the room through the indoor air supply vent 11, thereby meeting the indoor cooling needs. At this time, the fresh air system 30 can be set to off.

[0026] 2) Heating mode. For example... Figure 1 and Figure 3 As shown, during heating mode operation, the evaporator unit 21 and condenser unit 22 within the heat pump system 20 are switched (usually using a four-way reversing valve), so that the original evaporator unit 21 becomes a condenser unit, and the original condenser unit 22 becomes an evaporator unit. When the heat pump system 20 is started, indoor air passes through the indoor return air vent 12, passes through the condenser unit (original evaporator unit 21), undergoes heat exchange to raise its temperature, and is then supplied to the room through the indoor air supply vent 11, thus meeting the indoor heating needs. At this time, the fresh air system 30 can be set to off.

[0027] 3) Fresh air heat recovery mode. For example... Figure 1 and Figure 4 As shown in this application, the heat exchange core 31 can be located in the upper middle part of the unit cabinet 10. When the fresh air system 30 is turned on, indoor air enters the heat exchange core 31 through the indoor exhaust vent 13, and outdoor fresh air enters the heat exchange core 31 through the outdoor fresh air inlet 14. After heat exchange between the indoor air and the outdoor fresh air, the heat or cold energy carried by the indoor air is transferred to the fresh air, which recovers the energy and then sends it into the room through the evaporator unit 21 and the indoor air supply vent 11. The indoor air is then discharged to the outside through the condenser unit 22 and the outdoor exhaust vent 15. At this time, the heat pump system 20 can be turned off.

[0028] 4) When the heat pump system 20 and the fresh air system 30 are both turned on, the combination of 1) and 3) results in a cooling mode + fresh air heat recovery mode. For example... Figure 1 and Figure 5 As shown, outdoor fresh air enters the heat exchange core 31 inside the unit cabinet 10 through the outdoor fresh air inlet 14. Under the secondary pressurization of the evaporator unit 21, it is cooled by the evaporator unit 21 and sent into the room through the indoor air outlet 11, thus assisting in 1) completing the temperature regulation of the outdoor fresh air entering the room. Indoor air enters the heat exchange core 31 through the indoor exhaust outlet 13, passes through the condenser unit 22, and is cooled by the refrigerant inside the condenser unit 22 before being discharged to the outside through the outdoor exhaust outlet 15.

[0029] 5) When the heat pump system 20 and the fresh air system 30 are both turned on, the combination of 2) and 3) results in a heating mode + fresh air heat recovery mode. For example... Figure 1 and Figure 5 As shown, outdoor fresh air enters the heat exchange core 31 inside the unit cabinet 10 through the outdoor fresh air inlet 14. Under secondary pressurization by the condenser unit (formerly the evaporator unit 21), the outdoor fresh air is heated and sent into the room, completing the temperature regulation of the outdoor fresh air entering the room. The indoor air passes through the evaporator unit (formerly the condenser unit 22), where the refrigerant inside the evaporator unit (formerly the condenser unit 22) exchanges heat with the indoor hot air, absorbing the heat of the indoor air and evaporating. During this process, the indoor air is cooled and discharged to the outside through the outdoor exhaust outlet 15.

[0030] With the above configuration, the integrated heat exchange fresh air conditioning unit 100 according to this utility model embodiment incorporates a heat pump system 20 and a fresh air system 30, combining the air conditioning system and the fresh air system 30, thus providing the following advantages:

[0031] 1) The integrated heat exchange fresh air conditioning unit 100 of this utility model embodiment can meet the air conditioning functions of indoor heating in winter and cooling in summer;

[0032] 2) The integrated heat exchange fresh air conditioning unit 100 of this utility model embodiment can meet the functions of outdoor fresh air filtration, cooling or heating air supply;

[0033] 3) The integrated heat exchange fresh air air conditioning unit 100 of this utility model embodiment also has the functions of indoor exhaust and fresh air heat exchange and heat recovery, system control integration, intelligent adjustment, and energy-saving operation;

[0034] 4) In the integrated heat exchange fresh air conditioning unit 100 of this utility model embodiment, in cooling mode + fresh air heat recovery mode, the indoor air's energy is recovered after passing through the heat exchange core 31. When passing through the condenser unit 22, since the indoor air temperature is lower than the outdoor temperature, the heat exchange efficiency of the condenser unit 22 can be improved. For the refrigeration system, this achieves secondary energy recovery, resulting in significant energy-saving effects.

[0035] 5) The integrated heat exchange fresh air conditioning unit 100 of this utility model embodiment is installed indoors without the need for an outdoor unit, which saves installation space, reduces installation and construction difficulty, and has a good decorative effect.

[0036] 6) The installation process of the integrated heat exchange fresh air conditioning unit 100 in this embodiment of the utility model does not involve professional and complicated operations such as vacuuming, pressure holding, and refrigerant charging, which further reduces the difficulty of installation and construction and simplifies the construction.

[0037] It should be added that, in this application, the heat exchange core 31 utilizes the principle of heat transfer and, through special material and structural design, allows the indoor exhaust air and the outdoor intake air to exchange heat as they pass through the core, but the air itself does not mix, thereby achieving energy recovery and utilization. In this application, the unit cabinet 10 can adopt a double-layer steel plate foam insulation structure, which has good insulation effect and high strength.

[0038] In this application, the integrated heat exchange fresh air conditioning unit 100 can be installed near a window or in a specific space inside a building. Two openings are made in the building wall to house an outdoor fresh air inlet and an outdoor fresh air exhaust outlet, serving as heat exchange channels for outdoor air. Each room inside the building can have a return air vent installed, connected to the indoor return air vent 12 on the unit via a duct. The unit's indoor supply air vent 11 is fitted with a duct, leading to each room to supply air to that room. Furthermore, exhaust vents can be installed in bathrooms or kitchens within the building, connected to the unit's outdoor fresh air exhaust outlet via exhaust ducts.

[0039] Please refer to Figure 1 In some embodiments, the intelligent control system 40 includes a control module 41 disposed on the unit cabinet 10, and the control method of the control module 41 includes:

[0040] S1, start the heat pump system 20, set the cooling mode or heating mode, and after heat exchange with the air entering the indoor return air vent 12 through the evaporator unit 21, condenser unit 22 and compressor unit 23, the air is discharged to the external environment through the indoor air supply vent 11.

[0041] S2, start the fresh air system 30, and after heat exchange with the air entering from the outdoor fresh air inlet 14 through the heat exchange core 31 and the evaporator unit 21, the air is discharged to the outside environment through the indoor air outlet 11; the indoor air passes through the indoor exhaust outlet 13, and after heat exchange with the air entering from the outdoor fresh air inlet 14 through the heat exchange core 31, the indoor air passes through the condenser unit 22, and the indoor air is discharged to the outside environment through the outdoor exhaust outlet 15.

[0042] S3 adjusts the start / stop status or frequency status of the evaporator unit 21, condenser unit 22, compressor unit 23, and fresh air system 30 according to different operating mode requirements.

[0043] Through the control method of the aforementioned control module 41, the intelligent control system 40 of the integrated heat exchange fresh air conditioning unit 100 according to this utility model embodiment integrates the heat pump system 20 and the fresh air system 30 together. It automatically adjusts the operating frequency of the compressor unit 23, the condenser unit 22 and the evaporator unit 21, and the fresh air system 30 according to changes in outdoor ambient temperature and indoor demand, thereby achieving good energy-saving performance. Simultaneously, it automatically adjusts the start / stop status or frequency status of each component according to different operating mode requirements, exhibiting a high degree of integration and intelligence.

[0044] Please continue to refer to Figure 1 In some embodiments, an auxiliary heating device 50 is also included, which is disposed in the indoor air outlet 11 and is electrically connected to the intelligent control system 40.

[0045] With the above settings, in heating mode, the evaporator unit 21 and condenser unit 22 within the heat pump system 20 are switched (usually using a four-way reversing valve), so that the original evaporator unit 21 becomes a condenser unit and the original condenser unit 22 becomes an evaporator unit. When the outdoor temperature is low in winter, the air heating capacity of the condenser unit (original evaporator unit 21) is limited. The auxiliary heating device 50 installed above the condenser unit (original evaporator unit 21) is turned on to further heat the air, thereby meeting the hot air delivery requirements.

[0046] Please continue to refer to Figure 1 In some embodiments, the fresh air system 30 further includes a fresh air supply fan 32 and a fresh air exhaust fan 33, both disposed on one side of the heat exchange core 31. The heat exchange core 31 includes: a first air inlet side connected to the indoor exhaust vent 13; a second air inlet side connected to the outdoor fresh air inlet 14; a first air outlet side connected to the fresh air supply fan 32; and a second air outlet side connected to the fresh air exhaust fan 33. The fresh air supply fan 32 is connected to the evaporator unit 21, and the fresh air exhaust fan 33 is connected to the condenser unit 22.

[0047] In this application, the fresh air system 30 can be located in the central area of ​​the unit cabinet 10, between the evaporator unit 21 and the compressor unit 23. The indoor exhaust vent 13 can be located on the side wall of the unit cabinet 10 and at the first air inlet side of the fresh air system 30. In this application, indoor air and outdoor fresh air exchange heat through the heat exchange core 31 (also called a heat exchanger). The first air inlet side is connected to the second air outlet side, and the second air inlet side is connected to the first air outlet side. Indoor air enters the first air inlet side through the indoor exhaust vent 13 and is discharged from the second air outlet side through the fresh air exhaust fan 33. Outdoor fresh air enters the second air inlet side through the outdoor fresh air inlet 14 and is discharged from the first air outlet side through the fresh air supply fan 32. In this application, both the fresh air supply fan 32 and the fresh air exhaust fan 33 are electrically connected to the intelligent control system 40.

[0048] Please continue to refer to Figure 1 In some embodiments, an exhaust filter 311 is provided on the first air inlet side of the heat exchange core 31, and a fresh air filter 312 is provided on the second air inlet side of the heat exchange core 31.

[0049] The above settings can be used to filter incoming indoor air and outdoor fresh air to reduce the entry of dust and other impurities into the equipment, thereby effectively extending the service life of the equipment and improving the cleanliness of the discharged hot and cold air.

[0050] Please continue to refer to Figure 1 In some embodiments, the evaporator unit 21 includes: an evaporator 211 disposed at the top inside the unit cabinet 10 and connected to the indoor air supply outlet 11; and an evaporator fan 212 disposed below the evaporator 211 and used to connect the indoor return air outlet 12 and the evaporator 211.

[0051] In this application, the indoor return air vent 12 can be installed on the side wall of the unit cabinet 10, and located at the position of the evaporator fan 212. In this application, the evaporator fan 212 is electrically connected to the intelligent control system 40.

[0052] Please continue to refer to Figure 1 In some embodiments, the condensing unit 22 includes: a condensing fan 221 disposed at the bottom inside the unit cabinet 10 and connected to the outdoor exhaust outlet 15; and a condenser 222 disposed above the condensing fan 221 and used to connect the fresh air system 30 and the condensing fan 221.

[0053] In this application, the outdoor exhaust outlet 15 can be installed on the side wall of the unit cabinet 10, and located at the position of the condenser fan 221. In this application, the condenser fan 221 is electrically connected to the intelligent control system 40.

[0054] Please continue to refer to Figure 1In some embodiments, the compressor unit 23 includes: a compressor 231 disposed above the condenser 222, with a four-way reversing valve disposed on the discharge pipe of the compressor 231; and an electronic expansion valve 232 disposed on one side of the compressor 231. The compressor 231, condenser 222, electronic expansion valve 232, evaporator 211, and compressor 231 are connected in a circuit.

[0055] In this application, the outdoor fresh air inlet 14 can be installed on the side wall of the unit cabinet 10, located at the position of the compressor 231. In this application, the compressor unit 23 is electrically connected to the intelligent control system 40. In this application, the compressor 231 can be a horizontal compressor 231 or a vertical compressor 231 installed inside the unit cabinet 10. The compressor 231 can be installed at the bottom of the unit cabinet 10 or in the middle part of the unit cabinet 10.

[0056] Based on the above, the specific working principle of the heat pump system 20 in this application is as follows: The compressor 231 compresses the refrigerant into high-temperature, high-pressure refrigerant vapor, which enters the condenser 222 and exchanges heat with the air passing through the condenser 222. The refrigerant then becomes a low-temperature, high-pressure refrigerant liquid, simultaneously heating the air passing through the condenser 222. The refrigerant liquid continues to flow in the refrigeration system, passing through the electronic expansion valve 232 for throttling, becoming a low-temperature, low-pressure refrigerant liquid that enters the evaporator 211. Due to the low pressure of the refrigerant liquid, it exchanges heat with the air passing through the evaporator 211, absorbing heat from the air and flashing into gas. During this process, the air passing through the evaporator 211 is cooled down. Afterward, the refrigerant vapor in the system returns to the compressor 231.

[0057] In this application, the flow direction of refrigerant in compressor 231 is controlled by a four-way reversing valve, which enables the switching between evaporator 211 and condenser 222.

[0058] In this application, the unit cabinet 10 is divided into multiple installation spaces, which are used to fix the evaporator 211, evaporator fan 212, compressor 231, electronic expansion valve 232, condenser 222, condenser fan 221, fresh air supply fan 32, fresh air exhaust fan 33, and heat exchange core 31, respectively. The walls of the installation spaces have interconnected ventilation ducts formed according to the airflow pattern, so that air can circulate according to the fan's airflow.

[0059] Please refer to Figure 2 In some embodiments, multiple indoor return air inlets 12, outdoor fresh air inlets 14, and outdoor exhaust outlets 15 are provided.

[0060] With the above configuration, the indoor return air inlet 12, the outdoor fresh air inlet 14, and the outdoor exhaust outlet 15 are all configured in multiple locations to facilitate on-site construction. Different locations can be selected for duct connection according to the site conditions, making the application of the integrated heat exchange fresh air air conditioning unit equipment 100 according to the embodiment of this utility model more flexible.

[0061] In some embodiments, flange structures may be provided at the indoor return air inlet 12, the outdoor fresh air inlet 14, the outdoor exhaust air outlet 15, and the indoor supply air outlet 11 to facilitate their connection to the air duct.

[0062] Please refer to Figure 1 In some embodiments, the intelligent control system 40 includes a display control screen 42, which is mounted on the unit cabinet 10 and located at the position of the evaporator fan 212.

[0063] This setting allows the display control panel 42 to be positioned more ergonomically, making it easier for the operator to control.

[0064] In this application, in the control method of control module 41, in step three, according to the changes in outdoor ambient temperature and indoor demand, the operating frequency of compressor 231, condenser fan 221, evaporator fan 212, fresh air system 30, fresh air supply fan 32 and fresh air exhaust fan 33 can be adjusted.

[0065] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this application, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0066] Based on the above description of this application, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this application. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as a limitation on the present invention.

[0067] Furthermore, the terms "first" or "second," etc., used in this application to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as explicitly or implicitly indicating relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0068] While various embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. An integrated heat exchange fresh air conditioning unit, characterized in that, include: The unit cabinet is equipped with indoor air supply outlets, indoor return air outlets, indoor exhaust air outlets, outdoor fresh air inlets, and outdoor exhaust air outlets; and, located within the unit cabinet: A heat pump system comprising an evaporator, a condenser, and a compressor unit connecting the evaporator and the condenser; A fresh air system includes a heat exchange core disposed between the evaporator unit and the compressor unit inside the unit cabinet; and... An intelligent control system, which is installed inside the unit cabinet, is used to be electrically connected to the heat pump system and the fresh air system; The indoor return air vent is connected in sequence to the evaporator and the indoor air supply vent through an air duct formed inside the unit cabinet; the indoor exhaust air vent is connected in sequence to the fresh air system, the condenser unit, and the outdoor exhaust air outlet through an air duct formed inside the unit cabinet; and the outdoor fresh air inlet is connected in sequence to the fresh air system, the evaporator and the indoor air supply vent through an air duct formed inside the unit cabinet.

2. The integrated heat exchange fresh air conditioning unit according to claim 1, characterized in that, The heat exchange core includes: a first air inlet side connected to the indoor exhaust vent; a second air inlet side connected to the outdoor fresh air inlet; a first air outlet side connected to the second air inlet side; and a second air outlet side connected to the first air inlet side. The fresh air system also includes a fresh air supply fan and a fresh air exhaust fan. The fresh air supply fan is located on the first air outlet side and is connected to the evaporator unit. The fresh air exhaust fan is located on the second air outlet side and is connected to the condenser unit.

3. The integrated heat exchange fresh air conditioning unit according to claim 2, characterized in that, An exhaust filter is provided on the first air inlet side of the heat exchange core, and a fresh air filter is provided on the second air inlet side of the heat exchange core.

4. The integrated heat exchange fresh air conditioning unit according to any one of claims 1-3, characterized in that, The evaporator unit includes: An evaporator is located at the top of the unit cabinet and is connected to the indoor air outlet. An evaporator fan is located below the evaporator and is used to connect the indoor return air vent and the evaporator.

5. The integrated heat exchange fresh air conditioning unit according to claim 4, characterized in that, The condensing unit includes: A condenser fan, which is located at the bottom of the unit cabinet and connected to the outdoor exhaust outlet; and, A condenser is disposed above the condenser fan and is used to connect the fresh air system and the condenser fan.

6. The integrated heat exchange fresh air conditioning unit according to claim 5, characterized in that, The compressor unit includes a compressor located above the condenser. A four-way reversing valve is installed on the exhaust pipe of the compressor. The evaporator, the compressor, and the condenser are connected in sequence.

7. The integrated heat exchange fresh air conditioning unit according to claim 6, characterized in that, The heat pump system also includes an electronic expansion valve, which is located on one side of the compressor, wherein the compressor, the condenser, the electronic expansion valve, the evaporator, and the compressor are connected in a loop.

8. The integrated heat exchange fresh air conditioning unit according to any one of claims 1-3, characterized in that, The indoor return air vent, the outdoor fresh air inlet, and the outdoor exhaust air outlet are all configured to be multiple.

9. The integrated heat exchange fresh air conditioning unit according to claim 1, characterized in that, It also includes an auxiliary heating device, which is installed inside the indoor air outlet and is electrically connected to the intelligent control system.

10. The integrated heat exchange fresh air conditioning unit according to claim 1, characterized in that, The intelligent control system includes a control module mounted on the unit cabinet and a display control screen electrically connected to the control module.

Images