Fresh air machine

Abstract

The invention provides a fresh air ventilator which comprises a machine shell, an air inlet pipe, an air outlet pipe and an air outlet pipe. 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 related technology, a small-size fresh air machine is insufficient in dehumidification capacity is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air fans, and in particular to a fresh air fan. Background Art

[0002] Conventional fresh air fans are usually manufactured with consideration given to factors such as space occupied and diverse functions.

[0003] However, the existing fresh air blower has a small body, a small fin evaporation component, a small windward area, a large resistance, and a low heat exchange efficiency. The whole machine has insufficient temperature and humidity load handling capacity and only has fresh air purification and full heat exchange functions. If multiple air exchange functions are set, for example, a fresh air blower with fresh air and circulating air purification, full heat exchange, and dehumidification functions at the same time has a large structure size, which will make the structure of the whole fresh air blower very complicated and occupy a large space.

[0004] Therefore, the prior art needs to be further developed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a fresh air fan to solve the technical problem of insufficient dehumidification capacity of small-sized fresh air fans in the related art.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: a new air blower is provided, comprising: A casing, wherein the casing has an installation space; A fresh air inlet is arranged on the casing; A return air outlet is arranged on the casing; An air outlet is arranged on the housing; An air outlet is arranged on the housing; An evaporation component is used to allow the air flow in the installation space to flow out from the air supply port after passing through the evaporation component; the evaporation component divides the installation space into a first installation space and a second installation space, and the air supply port is connected to the second installation space; the fresh air port, the return air port and the exhaust port are all connected to the first installation space; the evaporation component has an air inlet surface in contact with the first installation space, and the air inlet surface is a polyhedron structure.

[0007] Further, 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.

[0008] Furthermore, the housing comprises: a first mounting plate; a second mounting plate, the second mounting plate being connected to the first mounting plate; A third mounting plate, the third mounting plate being connected to an end of the second mounting plate away from the first mounting plate; the third mounting plate and the second mounting plate being arranged at a distance; 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; and the fourth mounting plate is spaced apart from the second mounting plate; Wherein, the first air inlet surface is arranged opposite to the first mounting plate, the second air inlet surface is arranged opposite to the second mounting plate; and the third air inlet surface is arranged opposite to the second mounting plate.

[0009] Further, The first mounting plate and the third mounting plate are arranged parallel to each other; and / or, The second mounting plate and the fourth mounting plate are arranged parallel to each other; and / or, The first air inlet surface and the first mounting plate are arranged parallel to each other; and / or, The second air inlet surface and the second mounting plate are arranged parallel to each other; and / or, The third air inlet surface and the third mounting plate are arranged parallel to each other.

[0010] Furthermore, the air inlet surface comprises: a fourth air inlet surface, one end of the fourth air inlet surface being connected to the first air inlet surface, the other end of the fourth air inlet surface being connected to the second air inlet surface, and the fourth air inlet surface intersecting with both the first air inlet surface and the second air inlet surface; A fifth air inlet surface, one end of the fifth air inlet surface is connected to the second air inlet surface, the other end of the fifth air inlet surface is connected to the third air inlet surface, and the fourth air inlet surface intersects with both the second air inlet surface and the third air inlet surface.

[0011] Furthermore, the evaporation component has an air supply surface in contact with the second installation space, and the air supply surface is a polyhedron structure.

[0012] Furthermore, an air supply fan is provided in the second installation space, and an air outlet of the air supply fan is connected to the air supply outlet.

[0013] Furthermore, the new air blower also includes: A drain pipe connected to the evaporation component, the drain pipe passing through the casing; A drainage pump assembly connected to the drainage pipe; An air pipe connected to the evaporation component, the air pipe passing through the casing; A liquid pipe connected to the evaporation component, and the gas pipe is arranged through the casing; The expansion valve is used to control the on-off of the liquid pipe.

[0014] Furthermore, the new air blower also includes: A heat exchange component is arranged in the first installation space; the first installation space includes a first heat exchange space connected to the heat exchange component, a second heat exchange space and a third heat exchange space; the first heat exchange space, the second heat exchange space and the third heat exchange space are arranged separately; the exhaust port is connected to the first heat exchange space; the fresh air port is connected to the second heat exchange space; the return air port is connected to the third heat exchange space.

[0015] Furthermore, the new air blower also includes: an exhaust fan, located in the first heat exchange space, the air outlet of the exhaust fan being connected to the exhaust port; and / or, A fresh air valve is arranged at the fresh air outlet to open or close the fresh air outlet.

[0016] Furthermore, the new air blower also includes: a return air filter assembly, wherein one side of the return air filter assembly is located in the third heat exchange space, and the other side of the return air filter assembly is arranged opposite to the evaporation component; and / or, an exhaust filter assembly, wherein the exhaust filter assembly is arranged on a side of the heat exchange component close to the third heat exchange space; and / or, A fresh air filter assembly is arranged on a side of the heat exchange component close to the second heat exchange space.

[0017] Furthermore, the fresh air fan also includes a return air valve, and the return air valve is used to guide the airflow in the third heat exchange space to flow toward the evaporation component and / or the heat exchange component.

[0018] Beneficial effects: The fresh air fan of the present invention comprises: a casing having an installation space therein; a fresh air inlet arranged on the casing; a return air inlet arranged on the casing; an exhaust air outlet arranged on the casing; an air supply outlet arranged on the casing; an evaporation component, used to allow the airflow in the installation space to flow out from the air supply outlet after passing through the evaporation component; the evaporation component divides the installation space into a first installation space and a second installation space, and the air supply outlet is connected to the first installation space; the fresh air inlet, the return air inlet and the exhaust air outlet are all connected to the second installation space; the evaporation component has an air inlet surface in contact with the first installation space, and the air inlet surface is a polyhedron structure, which solves the technical problem of insufficient dehumidification capacity of small-sized fresh air fans in related technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a fresh air fan used in an embodiment of the present invention; Figure 2 is a side view of a fresh air fan used in an embodiment of the present invention; Figure 3 is a schematic structural diagram of an evaporation component of a fresh air fan used in an embodiment of the present invention; Figure 4 is a structural schematic diagram of a first working state of a fresh air fan used in an embodiment of the present invention; Figure 5 is a structural schematic diagram of a second working state of a fresh air fan provided by an embodiment of the present invention; Figure 6 It is a structural schematic diagram of the third working state of the fresh air fan provided by an embodiment of the present invention.

[0020] The above drawings include the following reference numerals: 1. Casing; 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. Evaporation 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. Air pipe; 84. Liquid pipe; 85. Expansion valve; 9. Heat exchange component; 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 DESCRIPTION

[0021] In order 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 in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0022] See also Figures 1 to 6According to an embodiment of the present invention, a fresh air fan is provided, comprising: a casing 1, wherein the casing 1 has an installation space 10; a fresh air inlet 2, which is arranged on the casing 1; a return air inlet 3, which is arranged on the casing 1; an exhaust air outlet 4, which is arranged on the casing 1; an air supply outlet 5, which is arranged on the casing 1; an evaporation component 6, which is used to allow the airflow in the installation space 10 to flow out from the air supply outlet 5 after passing through the evaporation component 6; the evaporation component 6 divides the installation space 10 into a first installation space 101 and a second installation space 102, and the air supply outlet 5 is connected to the first installation space 101; the fresh air inlet 2, the return air inlet 3 and the exhaust air outlet 4 are all connected to the second installation space 102; the evaporation component 6 has an air inlet surface 61 in contact with the first installation space 101, and the air inlet surface 61 is a polyhedron structure.

[0023] With the above arrangement, the evaporation component 6 is arranged in the air supply duct, and its shape is designed to be polygonal, with a large total heat exchange area of ​​the fins, a large windward area from multiple sides, small wind resistance, and high heat exchange efficiency. The polygonal evaporation component 6 solves the problem of small volume, small windward area, large resistance, and low heat exchange efficiency of conventional L-shaped and I-shaped fin evaporator components in the case of a small body, thereby solving the problem of insufficient temperature and humidity load processing capacity of the whole machine, and solving the technical problem of insufficient dehumidification capacity of small-sized fresh air fans in related technologies.

[0024] See also Figure 2 In the fresh air fan 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.

[0025] By adopting the above arrangement, the shape of the air inlet surface 61 is optimized, so that the air flow is smoother and the air processing efficiency is improved.

[0026] See also Figure 1In the fresh air fan of this embodiment, the casing 1 includes: a first mounting plate 11; a second mounting plate 12, the second mounting plate 12 is connected to the first mounting plate 11; a third mounting plate 13, the third mounting plate 13 is connected to one 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, one end of the fourth mounting plate 14 is connected to the first mounting plate 11; the other end of the fourth mounting plate 14 is connected to the third mounting plate 13; the fourth mounting plate 14 and the second mounting plate 12 are arranged at intervals; wherein, the first air inlet surface 611 is arranged opposite to the first mounting plate 11, the second air inlet surface 612 is arranged opposite to the second mounting plate 12; the third air inlet surface 613 is arranged opposite to the second mounting plate 12.

[0027] By adopting the above arrangement, there are plates in all directions of the evaporation component 6, and an air flow channel is formed between the plate and the evaporation component 6. Air flow can flow in the air flow channel, so that air flow can enter from all air inlet surfaces of the evaporation component 6, thereby improving the air flow processing efficiency.

[0028] See also Figure 1 In the fresh air fan 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.

[0029] By adopting the above arrangement, each panel is arranged in parallel with the corresponding air inlet surface, so that the airflow flows more evenly, thereby improving the airflow processing efficiency.

[0030] In the fresh air fan of the present embodiment, the air inlet surface 61 includes: a fourth air inlet surface 614, one end of the fourth air inlet surface 614 is connected to the first air inlet surface 611, the other end of the fourth air inlet surface 614 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; a fifth air inlet surface 615, one end of the fifth air inlet surface 615 is connected to the second air inlet surface 612, the other end of the fifth air inlet surface 615 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.

[0031] The above arrangement makes the shape of the air inlet surface 61 smoother, reduces the flow resistance of the airflow, and improves the processing efficiency of the airflow.

[0032] In the fresh air fan of this embodiment, the evaporation component 6 has an air supply surface 62 in contact with the second installation space 102, and the air supply surface 62 is a polyhedron structure.

[0033] With the above arrangement, the evaporation component 6 of the same thickness is used, so that the manufacturing cost of the evaporation component 6 is lower.

[0034] See also Figure 1 In the fresh air fan of this embodiment, an air supply fan 71 is provided in the second installation space 102 , and an air outlet of the air supply fan 71 is connected to the air supply outlet 5 .

[0035] The above arrangement increases the flow velocity of the airflow and improves the processing efficiency of the airflow.

[0036] In the fresh air fan of the present embodiment, the fresh air fan also includes: a drain pipe 81, connected to the evaporation component 6, and the drain pipe 81 is arranged through the casing 1; a drain pump assembly 82, connected to the drain pipe 81; an air pipe 83, connected to the evaporation component 6, and the air pipe 83 is arranged through the casing 1; a liquid pipe 84, connected to the evaporation component 6, and the air pipe 83 is arranged through the casing 1; an expansion valve 85, used to control the on-off of the liquid pipe 84.

[0037] By adopting the above arrangement, the on-off of the gas and liquid in the evaporation component 6 is controlled, thereby adjusting the processing mode of the airflow, thereby enriching the functions of the device.

[0038] In the fresh air fan of the present embodiment, the fresh air fan also includes: a heat exchange component 9, which is arranged in 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 arranged separately; the exhaust port 4 is connected to the first heat exchange space 1011; the fresh air port 2 is connected to the second heat exchange space 1012; the return air port 3 is connected to the third heat exchange space 1013.

[0039] By adopting the above arrangement, the flow of air in each heat exchange space is controlled, thereby enriching the function of the equipment.

[0040] In the fresh air fan of the present embodiment, the fresh air fan also includes: an exhaust fan 72, located in the first heat exchange space 1011, the air outlet of the exhaust fan 72 is connected to the exhaust outlet 4; and / or, a fresh air valve 73, the fresh air valve 73 is arranged at the fresh air outlet 2 to open or close the fresh air outlet 2.

[0041] With the above arrangement, the exhaust fan 72 can increase the velocity of the air flow and improve the air handling efficiency. The fresh air valve 73 is used to control whether the device collects air from the outside.

[0042] In the fresh air fan of the present embodiment, the fresh air fan also includes: a return air filter assembly 74, one side of the return air filter assembly 74 is located in the third heat exchange space 1013, and the other side of the return air filter assembly 74 is arranged opposite to the evaporation component 6; and / or, an exhaust air filter assembly 76, the exhaust air filter assembly 76 is arranged on the side of the heat exchange component 9 close to the third heat exchange space 1013; and / or, a fresh air filter assembly 77, the fresh air filter assembly 77 is arranged on the side of the heat exchange component 9 close to the second heat exchange space 1012.

[0043] With the above arrangement, the airflow is filtered by the filter assembly during its flow, thereby improving the air quality.

[0044] In the fresh air fan of the present embodiment, the fresh air fan further includes a return air valve 75 , and the return air valve 75 is used to guide the airflow in the third heat exchange space 1013 to flow toward the evaporation component 6 and / or the heat exchange component 9 .

[0045] With the above arrangement, the return air valve 75 is provided to control the airflow direction, thereby achieving multiple functions. The heat exchange component 9 is provided to adjust the temperature of the airflow passing through the heat exchange component 9.

[0046] The description of the new air blower of this embodiment is as follows: The fresh air fan of this embodiment has the following components arranged in the unit: two sets of air valves, namely a fresh air valve 73 and a return air valve 75; one set of full heat exchange core (i.e., heat exchange component 9); one set of polygonal fin evaporation component 6 (i.e., evaporation component 6), including an expansion valve 85, a drainage pump assembly 82, a liquid distribution pipe assembly, and an air pipe 83; two sets of fan components, namely, a supply air fan 71 and an exhaust air fan 72; three sets of filter mesh components, namely, a fresh air filter assembly 77, an exhaust air filter assembly 76, and a return air filter assembly 74.

[0047] The fin evaporation component 6 is arranged in the air supply duct, and its shape is designed to be polygonal, with a large total heat exchange area of ​​the fins, a large windward area for multi-sided air intake, small wind resistance, and high heat exchange efficiency. The design of the polygonal fin evaporation component 6 solves the problem that the conventional L-shaped and I-shaped fin evaporation components 6 are small in size, small windward area, large resistance, and low heat exchange efficiency in the case of a small-volume fuselage, thereby insufficient temperature and humidity load processing capacity of the entire machine.

[0048] The fresh air valve 73 is arranged in the fresh air duct to control whether the outdoor air can enter the unit through the fresh air inlet and be sent into the room. The return air valve 75 is arranged in the return air duct, located between the return air duct and the supply air duct, to control whether the indoor return air can enter the exhaust air duct through the full heat exchange core and be discharged outdoors, and to control whether the indoor return air can enter the supply air duct and be sent into the room after being purified by the return air filter assembly 74.

[0049] The fresh air filter assembly 77 is arranged in the fresh air duct for purifying the outdoor fresh air. The return air filter assembly 74 is arranged in the air supply duct adjacent to the return air valve 75 for purifying the indoor circulating return air.

[0050] Embodiment 1: See also Figure 4 , full heat exchange plus fresh air purification plus dehumidification mode: the fresh air valve 73 is in a horizontally open state; when the return air valve 75 rotates to seal with the partition between the return air duct and the supply air duct, the air outlet set on the partition in the return air duct is opened. The flow direction of the outdoor fresh air flow is: input from the fresh air port 2, purified by the fresh air filter component 77, energy exchange with the return air flow in the full heat exchange core, temperature and humidity treatment through the polygonal fin evaporation component 6 (expansion valve 85 is in the open state), and finally sent to the room from the supply air port 5. The flow direction of the indoor return air flow is: input from the return air port 3, purified by the exhaust air filter component 76, energy exchange with the fresh air flow in the full heat exchange core, and finally sent to the outside from the exhaust port 4.

[0051] Embodiment 2: Full heat exchange plus fresh air purification mode: the outdoor fresh air flow and indoor return air flow are consistent with the above mode, but the expansion valve 85 in the evaporation component 6 is closed at this time, and the fresh air flow is not subjected to temperature and humidity treatment. Figure 5 shown.

[0052] Embodiment three: Internal circulation purification and dehumidification mode: the fresh air valve 73 is in a vertically closed state; when the return air valve 75 rotates to seal with the partition in the return air duct, the air outlet provided on the partition between the return air duct and the supply air duct is opened. The flow direction of the outdoor fresh air flow is: the fresh air inlet is closed, and the outdoor fresh air does not enter the unit. The flow direction of the indoor return air flow is: it is input from the return air port 3, purified by the high-efficiency filter assembly (return air), and processed by the polygonal fin evaporation component 6 (expansion valve 85 is in the open state) for temperature and humidity treatment, and finally delivered to the room from the supply air port 5; the indoor air is processed in this way.

[0053] Embodiment 4: Internal circulation purification mode: the flow direction of outdoor fresh air flow and indoor return air flow is consistent with the above mode, but at this time the expansion valve 85 in the evaporation component 6 is closed, and the indoor return air flow is not subjected to temperature and humidity treatment.

[0054] Embodiment five: Mixed air purification and dehumidification mode: the fresh air valve 73 is in a horizontally open state; when the return air valve 75 rotates to the middle position between the return air duct and the supply air duct, the air outlets set on the partitions in the return air duct are opened, and the air outlets set on the partitions between the return air duct and the supply air duct are opened. The flow direction of the outdoor fresh air flow is: input from the fresh air outlet 2, purified by the high-efficiency filter assembly (fresh air), energy exchange with the return air flow in the full heat exchange core, temperature and humidity treatment through the polygonal fin evaporation component 6 (the electronic expansion valve is in the open state), and finally delivered to the room from the supply air outlet 5. The flow direction of the indoor return air flow is as follows: one part is input from the return air port 3, purified by the return air filter assembly 74, exchanges energy with the fresh air flow in the full heat exchange core, and is finally sent to the outside from the exhaust port 4; the other part is input from the return air port 3, purified by the exhaust air filter assembly 76, subjected to temperature and humidity treatment through the polygonal fin evaporation component 6 (the electronic expansion valve is in the open state), and finally sent to the room from the supply air port 5; the indoor air is processed in this cycle.

[0055] Embodiment six: Mixed air purification mode: the flow directions of outdoor fresh air flow and indoor return air flow are consistent with the above mode, but at this time the expansion valve 85 in the evaporation component 6 is closed, and the indoor return air flow is not subjected to temperature and humidity treatment.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0057] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0058] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0059] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0060] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A new air blower, characterized in that: include: A casing (1), wherein the casing (1) has an installation space (10); A fresh air inlet (2) is arranged on the casing (1); An air return port (3) is arranged on the casing (1); An air outlet (4) is arranged on the casing (1); An air supply port (5) is arranged on the casing (1); An evaporation component (6) is used to allow the airflow in the installation space (10) to flow out from the air supply port (5) after passing through the evaporation component (6); the evaporation component (6) divides the installation space (10) into a first installation space (101) and a second installation space (102), and the air supply port (5) is connected to the second installation space (102); the fresh air port (2), the return air port (3) and the exhaust port (4) are all connected to the first installation space (101); the evaporation component (6) has an air inlet surface (61) in contact with the first installation space (101), and the air inlet surface (61) is a polyhedral structure.

2. The fresh air blower according to claim 1, characterized in that: The air inlet surface (61) comprises 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 blower according to claim 2, characterized in that: The housing (1) comprises: A first mounting plate (11); A second mounting plate (12), the second mounting plate (12) being connected to the first mounting plate (11); a third mounting plate (13), the third mounting plate (13) being connected to an 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) being arranged at an interval; a fourth mounting plate (14), one end of the fourth mounting plate (14) being connected to the first mounting plate (11); the other end of the fourth mounting plate (14) being connected to the third mounting plate (13); the fourth mounting plate (14) and the second mounting plate (12) being arranged at intervals; The first air inlet surface (611) is arranged opposite to the first mounting plate (11), the second air inlet surface (612) is arranged opposite to the second mounting plate (12), and the third air inlet surface (613) is arranged opposite to the second mounting plate (12).

4. The fresh air blower 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) 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.

5. The fresh air blower according to claim 3, characterized in that: The air inlet surface (61) comprises: a fourth air inlet surface (614), one end of the fourth air inlet surface (614) being connected to the first air inlet surface (611), the other end of the fourth air inlet surface (614) being connected to the second air inlet surface (612), and the fourth air inlet surface (614) intersecting both the first air inlet surface (611) and the second air inlet surface (612); A fifth air inlet surface (615), one end of the fifth air inlet surface (615) is connected to the second air inlet surface (612), the other end of the fifth air inlet surface (615) 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).

6. The fresh air blower according to claim 1, characterized in that: The evaporation component (6) has an air supply surface (62) in contact with the second installation space (102), and the air supply surface (62) is a polyhedral structure.

7. The fresh air blower according to claim 1, characterized in that: An air supply fan (71) is arranged in the second installation space (102), and an air outlet of the air supply fan (71) is connected to the air supply outlet (5).

8. The fresh air blower according to claim 1, characterized in that: The new air blower also includes: A drain pipe (81) connected to the evaporation component (6), the drain pipe (81) being arranged through the casing (1); A drainage pump assembly (82) connected to the drainage pipe (81); An air pipe (83) connected to the evaporation component (6), the air pipe (83) being arranged through the casing (1); The liquid pipe (84) is connected to the evaporating component (6), and the gas pipe (83) is arranged through the casing (1); The expansion valve (85) is used to control the opening and closing of the liquid pipe (84).

9. The fresh air blower according to claim 1, characterized in that: The new air blower also includes: A heat exchange component (9) is arranged in the first installation space (101); the first installation space (101) comprises 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 arranged separately; the exhaust port (4) is connected to the first heat exchange space (1011); the fresh air port (2) is connected to the second heat exchange space (1012); and the return air port (3) is connected to the third heat exchange space (1013).

10. The fresh air blower according to claim 9, characterized in that: The new air blower also includes: an exhaust fan (72) located in the first heat exchange space (1011), an air outlet of the exhaust fan (72) being connected to the air outlet (4); and / or, A fresh air valve (73), the fresh air valve (73) is arranged at the fresh air outlet (2) to open or close the fresh air outlet (2).

11. The fresh air blower according to claim 9, characterized in that: The new air blower also includes: a return air filter assembly (74), wherein one side of the return air filter assembly (74) is located in the third heat exchange space (1013), and the other side of the return air filter assembly (74) is arranged opposite to the evaporation component (6); and / or, an exhaust filter assembly (76), the exhaust filter assembly (76) being arranged on a side of the heat exchange component (9) close to the third heat exchange space (1013); and / or, A fresh air filter assembly (77), wherein the fresh air filter assembly (77) is arranged on a side of the heat exchange component (9) close to the second heat exchange space (1012).

12. The fresh air blower according to claim 9, characterized in that: The fresh air fan further comprises a return air valve (75), wherein the return air valve (75) is used to guide the airflow in the third heat exchange space (1013) to flow toward the evaporation component (6) and / or the heat exchange component (9).

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