Fresh air machine

Abstract

The utility model provides a fresh air machine which comprises a machine shell, a fan body and a fan cover. The fresh air opening is formed in the machine shell; the air return opening is formed in the machine shell; the air outlet is formed in the machine shell; the air supply outlet is formed in the machine shell; the evaporation component is used for enabling the air flow in the mounting space to flow out from the air supply outlet after passing through the evaporation component; the evaporation part divides the mounting space into a first mounting space and a second mounting space, and the air supply outlet is communicated with the second mounting space; the fresh air opening, the air return opening and the air exhaust opening all communicate with the first installation space. The evaporation component is provided with an air inlet face making contact with the first installation space, the air inlet face is of a polyhedral structure, and the technical problem that in the prior art, a small-size fresh air machine is insufficient in dehumidification capacity is solved.

Description

Technical Field

[0001] This utility model relates to the field of fresh air system technology, specifically to a fresh air system. Background Technology

[0002] Conventional fresh air systems are typically manufactured with space requirements and diverse functions in mind.

[0003] However, existing fresh air systems, despite their compact size, suffer from small finned evaporator components, limited frontal area, high resistance, and low heat exchange efficiency. Consequently, their overall temperature and humidity load handling capacity is insufficient, offering only fresh air purification and total heat exchange functions. Incorporating multiple air exchange functions—for example, a fresh air system simultaneously offering fresh air and recirculated air purification, total heat exchange, and dehumidification—would result in a large and complex structure, occupying a significant amount of space.

[0004] Therefore, existing technologies need further development. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a fresh air blower to solve the technical problem of insufficient dehumidification capacity of small-sized fresh air blowers in related technologies.

[0006] To achieve the above technical objectives, this utility model adopts the following technical solution: It provides a fresh air ventilator, comprising:

[0007] A housing, wherein the housing has an installation space;

[0008] The fresh air inlet is located on the casing.

[0009] The return air vent is located on the casing.

[0010] The exhaust vent is located on the casing.

[0011] The air outlet is located on the housing.

[0012] An evaporator is used to allow airflow within the installation space to pass through the evaporator and then exit from the air outlet; the evaporator divides the installation space into a first installation space and a second installation space, and the air outlet is connected to the second installation space; the fresh air inlet, the return air inlet, and the exhaust air outlet are all connected to the first installation space; the evaporator has an air inlet surface that contacts the first installation space, and the air inlet surface has a polyhedral structure.

[0013] Furthermore,

[0014] The air inlet surface includes a first air inlet surface, a second air inlet surface, and a third air inlet surface; the first air inlet surface extends along a first preset direction, the second air inlet surface extends along a second preset direction, and the third air inlet surface extends along a third preset direction; the first air inlet surface, the second air inlet surface, and the third air inlet surface intersect.

[0015] Furthermore, the housing includes:

[0016] First mounting plate;

[0017] A second mounting plate is connected to the first mounting plate.

[0018] A third mounting plate is connected to the end of the second mounting plate away from the first mounting plate; the third mounting plate and the second mounting plate are arranged at intervals.

[0019] A fourth mounting plate, one end of which is connected to the first mounting plate; the other end of which is connected to the third mounting plate; the fourth mounting plate and the second mounting plate are disposed at an interval.

[0020] The first air inlet surface is disposed opposite to the first mounting plate, the second air inlet surface is disposed opposite to the second mounting plate, and the third air inlet surface is disposed opposite to the second mounting plate.

[0021] Furthermore,

[0022] The first mounting plate and the third mounting plate are arranged parallel to each other; and / or,

[0023] The second mounting plate and the fourth mounting plate are arranged parallel to each other; and / or,

[0024] The first air inlet surface is arranged parallel to the first mounting plate; and / or,

[0025] The second air inlet surface is arranged parallel to the second mounting plate; and / or,

[0026] The third air inlet surface is arranged parallel to the third mounting plate.

[0027] Furthermore, the air inlet surface includes:

[0028] A fourth air inlet surface, one end of which is connected to the first air inlet surface, and the other end of which is connected to the second air inlet surface, intersecting with both the first and second air inlet surfaces;

[0029] The fifth air inlet surface has one end connected to the second air inlet surface and the other end connected to the third air inlet surface. The fourth air inlet surface intersects with both the second and third air inlet surfaces.

[0030] Furthermore, the evaporation component has an air supply surface that contacts the second mounting space, and the air supply surface has a polyhedral structure.

[0031] Furthermore, a blower is provided in the second installation space, and the outlet of the blower is connected to the air outlet.

[0032] Furthermore, the fresh air unit also includes:

[0033] A drain pipe is connected to the evaporation component and passes through the housing.

[0034] A drain pump assembly is connected to the drain pipe;

[0035] A gas pipe is connected to the evaporation component and is disposed through the housing;

[0036] A liquid pipe is connected to the evaporation component, and a gas pipe is installed through the housing;

[0037] An expansion valve is used to control the opening and closing of the liquid pipe.

[0038] Furthermore, the fresh air unit also includes:

[0039] A heat exchange component is disposed within the first installation space; the first installation space includes a first heat exchange space, a second heat exchange space, and a third heat exchange space connected to the heat exchange component; the first heat exchange space, the second heat exchange space, and the third heat exchange space are disposed separately; the exhaust vent is connected to the first heat exchange space; the fresh air vent is connected to the second heat exchange space; and the return air vent is connected to the third heat exchange space.

[0040] Furthermore, the fresh air unit also includes:

[0041] An exhaust fan is located within the first heat exchange space, and the exhaust fan's outlet is connected to the exhaust port; and / or,

[0042] A fresh air valve is installed at the fresh air inlet to open or close the fresh air inlet.

[0043] Furthermore, the fresh air unit also includes:

[0044] A return air filter assembly, one side of which is located within the third heat exchange space, and the other side of which is disposed opposite to the evaporation component; and / or,

[0045] An exhaust air filter assembly is disposed on the side of the heat exchange component near the third heat exchange space; and / or,

[0046] The fresh air filter assembly is disposed on the side of the heat exchange component near the second heat exchange space.

[0047] Furthermore, the fresh air unit also includes a return air valve, which is used to guide the airflow in the third heat exchange space to the evaporation component and / or the heat exchange component.

[0048] Beneficial effects:

[0049] This utility model of a fresh air ventilator includes: a housing with an installation space inside; a fresh air inlet disposed on the housing; a return air inlet disposed on the housing; an exhaust air inlet disposed on the housing; a supply air inlet disposed on the housing; and an evaporation component for allowing airflow in the installation space to pass through the evaporation component and then exit from the supply air inlet. The evaporation component divides the installation space into a first installation space and a second installation space, and the supply air inlet communicates with the first installation space. The fresh air inlet, the return air inlet, and the exhaust air inlet are all communicated with the second installation space. The evaporation component has an air inlet surface that contacts the first installation space, and the air inlet surface has a polyhedral structure, thus solving the technical problem of insufficient dehumidification capacity in small-sized fresh air ventilators in related technologies. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of the fresh air unit used in this embodiment of the utility model;

[0051] Figure 2 This is a side view of the fresh air unit used in this embodiment of the utility model;

[0052] Figure 3 This is a schematic diagram of the evaporator component of the fresh air unit used in this embodiment of the utility model;

[0053] Figure 4 This is a schematic diagram of the first working state of the fresh air unit used in this embodiment of the utility model;

[0054] Figure 5 This is a structural schematic diagram of the second working state of the fresh air unit provided in this embodiment of the utility model;

[0055] Figure 6 This is a structural schematic diagram of the third working state of the fresh air unit provided in this embodiment of the utility model.

[0056] The above figures include the following reference numerals:

[0057] 1. Housing; 11. First mounting plate; 12. Second mounting plate; 13. Third mounting plate; 14. Fourth mounting plate; 2. Fresh air inlet; 3. Return air inlet; 4. Exhaust air outlet; 5. Supply air outlet; 6. Evaporator component; 61. Air inlet surface; 611. First air inlet surface; 612. Second air inlet surface; 613. Third air inlet surface; 614. Fourth air inlet surface; 615. Fifth air inlet surface; 62. Supply air surface; 71. Supply air fan; 72. Exhaust air fan; 73. Fresh air valve; 74. Return air filter assembly; 75. Return air valve; 76. Exhaust air filter assembly; 77. Fresh air filter assembly; 81. Drain pipe; 82. Drain pump assembly; 83. Gas pipe; 84. Liquid pipe; 85. Expansion valve; 9. Heat exchange component;

[0058] 10. Installation space; 101. First installation space; 1011. First heat exchange space; 1012. Second heat exchange space; 1013. Third heat exchange space; 102. Second installation space. Detailed Implementation

[0059] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0060] See Figures 1 to 6 According to an embodiment of the present invention, a fresh air ventilator is provided, comprising: a housing 1 having an installation space 10 therein; a fresh air inlet 2 disposed on the housing 1; a return air inlet 3 disposed on the housing 1; an exhaust air outlet 4 disposed on the housing 1; a supply air outlet 5 disposed on the housing 1; and an evaporation component 6 for allowing airflow in the installation space 10 to pass through the evaporation component 6 and then exit from the supply air outlet 5; the evaporation component 6 divides the installation space 10 into a first installation space 101 and a second installation space 102, and the supply air outlet 5 communicates with the first installation space 101; the fresh air inlet 2, the return air inlet 3, and the exhaust air outlet 4 are all communicated with the second installation space 102; the evaporation component 6 has an air inlet surface 61 that contacts the first installation space 101, and the air inlet surface 61 has a polyhedral structure.

[0061] With the above configuration, the evaporator component 6 is located within the air supply duct. Its polygonal shape results in a large total finned heat exchange area, a large multi-faceted air intake area, low wind resistance, and high heat exchange efficiency. The polygonal evaporator component 6 solves the problems of small size, small air intake area, high resistance, and low heat exchange efficiency associated with conventional L-shaped and I-shaped finned evaporators in small-volume systems. This addresses the issue of insufficient overall temperature and humidity load handling capacity and the technical problem of insufficient dehumidification capacity in small-sized fresh air units in related technologies.

[0062] See Figure 2 In the fresh air unit of this embodiment, the air inlet surface 61 includes a first air inlet surface 611, a second air inlet surface 612, and a third air inlet surface 613; the first air inlet surface 611 extends along a first preset direction, the second air inlet surface 612 extends along a second preset direction, and the third air inlet surface 613 extends along a third preset direction; the first air inlet surface 611, the second air inlet surface 612, and the third air inlet surface 613 intersect.

[0063] By adopting the above settings, the shape of the air inlet surface 61 is optimized, making the airflow smoother and improving the air handling efficiency.

[0064] See Figure 1 In the fresh air unit of this embodiment, the housing 1 includes: a first mounting plate 11; a second mounting plate 12 connected to the first mounting plate 11; a third mounting plate 13 connected to the end of the second mounting plate 12 away from the first mounting plate 11; the third mounting plate 13 and the second mounting plate 12 are spaced apart; a fourth mounting plate 14, one end of the fourth mounting plate 14 connected to the first mounting plate 11; the other end of the fourth mounting plate 14 connected to the third mounting plate 13; the fourth mounting plate 14 and the second mounting plate 12 are spaced apart; wherein, the first air inlet surface 611 is disposed opposite to the first mounting plate 11, the second air inlet surface 612 is disposed opposite to the second mounting plate 12, and the third air inlet surface 613 is disposed opposite to the second mounting plate 12.

[0065] With the above configuration, the evaporator 6 has plates in all directions, and airflow channels are formed between the plates and the evaporator 6. Airflow can flow through the airflow channels, allowing airflow to enter from each air inlet surface of the evaporator 6, thereby improving the airflow processing efficiency.

[0066] See Figure 1In the fresh air unit of this embodiment, the first mounting plate 11 and the third mounting plate 13 are arranged parallel to each other; and / or, the second mounting plate 12 and the fourth mounting plate 14 are arranged parallel to each other; and / or, the first air inlet surface 611 and the first mounting plate 11 are arranged parallel to each other; and / or, the second air inlet surface 612 and the second mounting plate 12 are arranged parallel to each other; and / or, the third air inlet surface 613 and the third mounting plate 13 are arranged parallel to each other.

[0067] By adopting the above configuration, each panel is set parallel to the corresponding air inlet surface, which makes the airflow more uniform and thus improves the airflow processing efficiency.

[0068] In the fresh air unit of this embodiment, the air inlet surface 61 includes: a fourth air inlet surface 614, one end of which is connected to the first air inlet surface 611, and the other end of which is connected to the second air inlet surface 612, and the fourth air inlet surface 614 intersects with both the first air inlet surface 611 and the second air inlet surface 612; and a fifth air inlet surface 615, one end of which is connected to the second air inlet surface 612, and the other end of which is connected to the third air inlet surface 613, and the fourth air inlet surface 614 intersects with both the second air inlet surface 612 and the third air inlet surface 613.

[0069] The above configuration makes the shape of the air inlet surface 61 smoother, reduces the flow resistance of the airflow, and improves the airflow processing efficiency.

[0070] In the fresh air unit of this embodiment, the evaporation component 6 has an air supply surface 62 that contacts the second installation space 102, and the air supply surface 62 has a polyhedral structure.

[0071] By adopting the above configuration and using the same thickness of evaporation component 6, the manufacturing cost of evaporation component 6 is lower.

[0072] See Figure 1 In the fresh air unit of this embodiment, a supply fan 71 is provided in the second installation space 102, and the air outlet of the supply fan 71 is connected to the air outlet 5.

[0073] By adopting the above settings, the airflow velocity is increased, thereby improving the airflow processing efficiency.

[0074] In this embodiment of the fresh air unit, the fresh air unit further includes: a drain pipe 81 connected to the evaporation component 6, the drain pipe 81 passing through the housing 1; a drain pump assembly 82 connected to the drain pipe 81; an air pipe 83 connected to the evaporation component 6, the air pipe 83 passing through the housing 1; a liquid pipe 84 connected to the evaporation component 6, the air pipe 83 passing through the housing 1; and an expansion valve 85 for controlling the opening and closing of the liquid pipe 84.

[0075] By adopting the above settings, the airflow processing method can be adjusted by controlling the on / off state of gas and liquid in the evaporation component 6, thus enriching the functions of the equipment.

[0076] In this embodiment of the fresh air unit, the fresh air unit further includes: a heat exchange component 9, disposed within the first installation space 101; the first installation space 101 includes a first heat exchange space 1011, a second heat exchange space 1012, and a third heat exchange space 1013 connected to the heat exchange component 9; the first heat exchange space 1011, the second heat exchange space 1012, and the third heat exchange space 1013 are disposed separately; the exhaust vent 4 communicates with the first heat exchange space 1011; the fresh air vent 2 communicates with the second heat exchange space 1012; and the return air vent 3 communicates with the third heat exchange space 1013.

[0077] By adopting the above settings, the airflow within each heat exchange space can be controlled, thereby enriching the equipment's functionality.

[0078] In this embodiment, the fresh air unit further includes: an exhaust fan 72 located within the first heat exchange space 1011, the outlet of the exhaust fan 72 being connected to the exhaust port 4; and / or a fresh air valve 73 disposed at the fresh air port 2 to open or close the fresh air port 2.

[0079] With the above configuration, the exhaust fan 72 can increase the airflow velocity and improve air handling efficiency. The fresh air valve 73 controls whether the equipment draws air from the outside.

[0080] In this embodiment of the fresh air unit, the fresh air unit further includes: a return air filter assembly 74, one side of which is located within the third heat exchange space 1013, and the other side of which is disposed opposite to the evaporation component 6; and / or, an exhaust air filter assembly 76, which is disposed on the side of the heat exchange component 9 near the third heat exchange space 1013; and / or, a fresh air filter assembly 77, which is disposed on the side of the heat exchange component 9 near the second heat exchange space 1012.

[0081] With the above setup, the airflow is filtered by the filter components during the airflow process, thereby improving air quality.

[0082] In this embodiment, the fresh air unit also includes a return air valve 75, which is used to guide the airflow in the third heat exchange space 1013 to the evaporation component 6 and / or the heat exchange component 9.

[0083] By employing the above configuration, the airflow direction is controlled via a return air valve 75, thereby achieving multiple functions. A heat exchange component 9 is also included to regulate the temperature of the airflow passing through it.

[0084] The description of the fresh air unit in this embodiment is as follows:

[0085] The fresh air unit in this embodiment includes the following components: two sets of air valves, namely a fresh air valve 73 and a return air valve 75; a total heat exchange core (i.e., heat exchange component 9); a polygonal finned evaporator component 6 (i.e., evaporator component 6), including an expansion valve 85, a drain pump assembly 82, a liquid distribution pipe assembly, and a gas pipe 83; two sets of fan components, namely a supply fan 71 and an exhaust fan 72; and three sets of filter assemblies, namely a fresh air filter assembly 77, an exhaust air filter assembly 76, and a return air filter assembly 74.

[0086] The finned evaporator 6 is located inside the air supply duct. Its polygonal shape results in a large total heat exchange area, a large multi-faceted air intake area, low air resistance, and high heat exchange efficiency. The design of the polygonal finned evaporator 6 solves the problem of insufficient overall temperature and humidity load handling capacity caused by the small size, small air intake area, high resistance, and low heat exchange efficiency of conventional L-shaped and I-shaped finned evaporators 6 in small-volume units.

[0087] The fresh air valve 73 is installed in the fresh air duct and is used to control whether outdoor air can enter the unit through the fresh air inlet and be delivered into the room. The return air valve 75 is installed in the return air duct, located between the return air duct and the supply air duct. It is used to control whether indoor return air can enter the exhaust air duct and be discharged outdoors through the total heat exchange core, and to control whether indoor return air can enter the supply air duct and be delivered into the room after being purified by the return air filter assembly 74.

[0088] The fresh air filter assembly 77 is installed in the fresh air duct and is used to purify the outdoor fresh air. The return air filter assembly 74 is installed in the supply air duct adjacent to the return air valve 75 and is used to purify the indoor recirculated return air.

[0089] Example 1:

[0090] See Figure 4In the total heat exchange plus fresh air purification plus dehumidification mode: the fresh air valve 73 is in the horizontally open state; when the return air valve 75 rotates to seal with the partition located between the return air duct and the supply air duct, the air vents on the partition in the return air duct are opened. The outdoor fresh air flow direction is: it enters from the fresh air inlet 2, is purified by the fresh air filter component 77, exchanges energy with the return air flow in the total heat exchange core, undergoes temperature and humidity treatment through the polygonal fin evaporator component 6 (expansion valve 85 is in the open state), and is finally delivered to the room from the supply air outlet 5. The indoor return air flow direction is: it enters from the return air inlet 3, is purified by the exhaust air filter component 76, exchanges energy with the fresh air flow in the total heat exchange core, and is finally delivered to the outside from the exhaust air outlet 4.

[0091] Example 2:

[0092] Total heat exchange with fresh air purification mode: The flow direction of outdoor fresh air and indoor return air is the same as in the above mode, but the expansion valve 85 in the evaporator 6 is closed, and no temperature and humidity treatment is applied to the fresh air flow. Airflow diagram as follows: Figure 5 As shown.

[0093] Example 3:

[0094] Internal circulation purification and dehumidification mode: Fresh air valve 73 is vertically closed; when return air valve 75 rotates to seal with the partition in the return air duct, the air vent on the partition between the return air duct and the supply air duct is opened. Outdoor fresh air flow direction: Fresh air inlet is closed, outdoor fresh air does not enter the unit. Indoor return air flow direction: Intakes from return air inlet 3, purifies through the high-efficiency filter assembly (return air), undergoes temperature and humidity treatment through the polygonal finned evaporator 6 (expansion valve 85 is open), and finally delivers it to the room from supply air inlet 5; thus, indoor air is circulated and treated.

[0095] Example 4:

[0096] Internal circulation purification mode: The flow direction of outdoor fresh air and indoor return air is the same as the above mode, but at this time the expansion valve 85 in the evaporator 6 is closed and no temperature and humidity treatment is performed on the indoor return air.

[0097] Example 5:

[0098] Mixed air purification and dehumidification mode: Fresh air valve 73 is in the horizontal open state; when return air valve 75 rotates to the middle position between the return air duct and the supply air duct, the air vents on the partition in the return air duct and the air vents on the partition between the return air duct and the supply air duct are opened. The outdoor fresh air flow direction is: it enters from the fresh air inlet 2, is purified by the high-efficiency filter assembly (fresh air), exchanges energy with the return air in the total heat exchange core, undergoes temperature and humidity treatment through the polygonal fin evaporator 6 (with the electronic expansion valve in the open state), and is finally delivered to the room from the supply air outlet 5. The indoor return airflow direction is as follows: one part is input from return air inlet 3, purified by return air filter component 74, exchanges energy with fresh air in the total heat exchange core, and is finally sent to the outside from exhaust air outlet 4; the other part is input from return air inlet 3, purified by exhaust air filter component 76, and undergoes temperature and humidity treatment through polygonal fin evaporator component 6 (electronic expansion valve is in the open state), and is finally sent to the room from supply air outlet 5; the indoor air is treated in this way.

[0099] Example 6:

[0100] Mixed air purification mode: The flow direction of outdoor fresh air and indoor return air is the same as the above mode, but at this time the expansion valve 85 in the evaporator 6 is closed and no temperature and humidity treatment is performed on the indoor return air.

[0101] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0102] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0103] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0104] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0105] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A fresh air ventilator, characterized in that, include: The housing (1) has an installation space (10) inside. The fresh air inlet (2) is installed on the casing (1); Return air vent (3) is provided on the housing (1); An exhaust vent (4) is provided on the housing (1); An air outlet (5) is provided on the housing (1); An evaporator (6) is used to allow airflow in the installation space (10) to pass through the evaporator (6) and then flow out from the air outlet (5); the evaporator (6) divides the installation space (10) into a first installation space (101) and a second installation space (102), and the air outlet (5) is connected to the second installation space (102); the fresh air inlet (2), the return air inlet (3) and the exhaust air outlet (4) are all connected to the first installation space (101); the evaporator (6) has an air inlet surface (61) that contacts the first installation space (101), and the air inlet surface (61) is a polyhedral structure.

2. The fresh air system according to claim 1, characterized in that, The air inlet surface (61) includes a first air inlet surface (611), a second air inlet surface (612), and a third air inlet surface (613); the first air inlet surface (611) extends along a first preset direction, the second air inlet surface (612) extends along a second preset direction, and the third air inlet surface (613) extends along a third preset direction; the first air inlet surface (611), the second air inlet surface (612), and the third air inlet surface (613) intersect.

3. The fresh air system according to claim 2, characterized in that, The housing (1) includes: First mounting plate (11); The second mounting plate (12) is connected to the first mounting plate (11); A third mounting plate (13) is connected to the end of the second mounting plate (12) away from the first mounting plate (11); the third mounting plate (13) and the second mounting plate (12) are arranged at intervals. A fourth mounting plate (14) is provided, one end of which is connected to the first mounting plate (11); the other end of which is connected to the third mounting plate (13); the fourth mounting plate (14) and the second mounting plate (12) are provided at intervals. The first air inlet surface (611) is disposed opposite to the first mounting plate (11), the second air inlet surface (612) is disposed opposite to the second mounting plate (12), and the third air inlet surface (613) is disposed opposite to the second mounting plate (12).

4. The fresh air system according to claim 3, characterized in that, The first mounting plate (11) and the third mounting plate (13) are arranged parallel to each other; and / or, The second mounting plate (12) is arranged parallel to the fourth mounting plate (14); and / or, The first air inlet surface (611) is arranged parallel to the first mounting plate (11); and / or, The second air inlet surface (612) is arranged parallel to the second mounting plate (12); and / or, The third air inlet surface (613) is arranged parallel to the third mounting plate (13).

5. The fresh air system according to claim 3, characterized in that, The air inlet surface (61) includes: The fourth air inlet surface (614) is connected at one end to the first air inlet surface (611) and at the other end to the second air inlet surface (612). The fourth air inlet surface (614) intersects with both the first air inlet surface (611) and the second air inlet surface (612). The fifth air inlet surface (615) is connected at one end to the second air inlet surface (612) and at the other end to the third air inlet surface (613). The fourth air inlet surface (614) intersects with both the second air inlet surface (612) and the third air inlet surface (613).

6. The fresh air system according to claim 1, characterized in that, The evaporation component (6) has an air supply surface (62) that contacts the second mounting space (102), and the air supply surface (62) has a polyhedral structure.

7. The fresh air system according to claim 1, characterized in that, A blower (71) is provided in the second installation space (102), and the outlet of the blower (71) is connected to the air outlet (5).

8. The fresh air system according to claim 1, characterized in that, The fresh air system also includes: A drain pipe (81) is connected to the evaporation component (6), and the drain pipe (81) is disposed through the housing (1); A drain pump assembly (82) is connected to the drain pipe (81); An air pipe (83) is connected to the evaporation component (6), and the air pipe (83) is disposed through the housing (1); A liquid pipe (84) is connected to the evaporation component (6), and a gas pipe (83) is provided through the housing (1); An expansion valve (85) is used to control the opening and closing of the liquid pipe (84).

9. The fresh air system according to claim 1, characterized in that, The fresh air system also includes: A heat exchange component (9) is disposed within the first installation space (101); the first installation space (101) includes a first heat exchange space (1011), a second heat exchange space (1012), and a third heat exchange space (1013) connected to the heat exchange component (9); the first heat exchange space, the second heat exchange space (1012), and the third heat exchange space (1013) are disposed separately; the exhaust vent (4) is connected to the first heat exchange space (1011); the fresh air vent (2) is connected to the second heat exchange space (1012); and the return air vent (3) is connected to the third heat exchange space (1013).

10. The fresh air system according to claim 9, characterized in that, The fresh air system also includes: An exhaust fan (72) is located within the first heat exchange space (1011), and the outlet of the exhaust fan (72) is connected to the exhaust port (4); and / or, Fresh air valve (73) is provided at the fresh air inlet (2) to open or close the fresh air inlet (2).

11. The fresh air system according to claim 9, characterized in that, The fresh air system also includes: A return air filter assembly (74), one side of which is located within the third heat exchange space (1013), and the other side of which is disposed opposite to the evaporation component (6); and / or, An exhaust air filter assembly (76) is disposed on the side of the heat exchange component (9) near the third heat exchange space (1013); and / or, Fresh air filter assembly (77) is disposed on the side of the heat exchange component (9) near the second heat exchange space (1012).

12. The fresh air system according to claim 9, characterized in that, The fresh air unit also includes a return air valve (75), which is used to guide the airflow in the third heat exchange space (1013) to the evaporation component (6) and / or the heat exchange component (9).

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