Integral fresh air conditioner

Abstract

The application provides a whole new air conditioner, comprising a casing, an indoor module and a heat recovery module arranged in the casing, the casing is provided with an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet and a fresh air inlet; the indoor module comprises an indoor heat exchanger for exchanging heat with the air current flowing to the indoor air outlet; the heat recovery module comprises a heat exchange core, a fresh air fan and an exhaust air fan, the heat exchange core comprises a heat exchange shell and a plurality of heat exchange pipes arranged in the heat exchange shell, the two ends of the heat exchange pipes are respectively communicated with the indoor air inlet and the air inlet side of the exhaust air fan, the air outlet side of the exhaust air fan is communicated with the outdoor air outlet; the fresh air inlet and the fresh air outlet of the heat exchange shell are respectively communicated with the fresh air inlet and the fresh air fan, and the air outlet side of the fresh air fan is communicated with the indoor air outlet. The application can reduce the temperature difference between the outdoor fresh air and the indoor return air by exchanging heat between the outdoor fresh air flowing through the gap between the plurality of heat exchange pipes and the indoor return air in the heat exchange pipes, thereby reducing the energy consumption of the whole machine.

Description

Technical Field

[0001] This application belongs to the field of air conditioning technology, and in particular relates to an integrated fresh air air conditioner. Background Technology

[0002] Air conditioners can be broadly categorized into split-type and unit-type air conditioners. Unit-type air conditioners, also known as all-in-one air conditioners, house all components within a single casing. Unit-type air conditioners with a fresh air function can circulate indoor and outdoor air without opening doors and windows, solving the problem of deteriorating air quality caused by the indoor air circulation of ordinary air conditioners. This improves the user experience and has made them popular among consumers.

[0003] Currently, in order to reduce indoor noise, the unit is usually placed on the outdoor side and connected to the indoor unit through supply and return air ducts. However, when the air conditioner is cooling in fresh air mode, the outdoor fresh air directly exchanges heat with the evaporator. Since the temperature of the outdoor fresh air is much higher than the indoor return air temperature in normal cooling mode, the energy consumption of the whole unit increases, thus increasing the operating cost of the air conditioner. Utility Model Content

[0004] This application provides an integrated fresh air conditioner to solve the problem of increased energy consumption caused by the large temperature difference between outdoor fresh air and indoor return air in existing integrated fresh air conditioners.

[0005] In a first aspect, embodiments of this application provide an integrated fresh air conditioner, comprising a casing, an indoor module, and a heat recovery module. The casing is provided with an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, and a fresh air inlet. The indoor module is disposed within the casing and includes an indoor heat exchanger for exchanging heat with airflow flowing towards the indoor air outlet. The heat recovery module is disposed within the casing and includes a heat exchange core, a fresh air fan, and an exhaust fan. The heat exchange core includes a heat exchange shell and a plurality of heat exchange tubes spaced apart within the heat exchange shell. The two ends of the heat exchange tubes are respectively connected to the indoor air inlet and the air inlet side of the exhaust fan, and the air outlet side of the exhaust fan is connected to the outdoor air outlet. The heat exchange shell is provided with a fresh air inlet and a fresh air outlet. The fresh air inlet is connected to the fresh air inlet, the fresh air outlet is connected to the air inlet side of the fresh air fan, and the air outlet side of the fresh air fan is connected to the indoor air outlet.

[0006] Optionally, the heat recovery module further includes a housing, in which the heat exchange core, the fresh air fan, and the exhaust fan are all located; the fresh air fan and the exhaust fan are respectively located at the upper and lower ends of the housing, the heat exchange tube extends along the height direction of the housing, and the fresh air inlet and the fresh air outlet are respectively located at the lower and upper ends of the heat exchange housing.

[0007] Optionally, the housing has a return air cavity that is independent of the interior of the heat exchange shell, and one end of the plurality of heat exchange tubes is connected to the air inlet side of the exhaust fan through the return air cavity.

[0008] Optionally, there are multiple heat exchange cores, and the housing forms a fresh air cavity independent of the return air cavity. The fresh air inlets of the multiple heat exchange cores are connected to the fresh air outlets through the fresh air cavities. The heat recovery module also includes an air collection box, and the fresh air outlets of the multiple heat exchange cores are connected to the air inlet side of the fresh air fan through the air collection box.

[0009] Optionally, multiple heat exchange cores are connected in sequence, and two adjacent heat exchange cores form a V-shaped structure, with the heat exchange tubes of the multiple heat exchange cores being parallel to each other.

[0010] Optionally, the housing includes a base and a bracket, both of which are mounted on the base, and the fresh air fan is mounted on the top of the bracket; the base has a return air cavity, and the top surface of the base has a first vent communicating with the return air cavity, and the air inlet side of the exhaust fan communicates with the return air cavity through the first vent.

[0011] Optionally, the housing further includes a partition, which is vertically disposed within the bracket and divides the internal space of the housing into an indoor cavity and an outdoor cavity; the air outlet of the fresh air fan and the indoor air inlet are both connected to the indoor air outlet through the indoor cavity, and the outdoor cavity is connected to both the outdoor air inlet and the outdoor air outlet.

[0012] Optionally, the heat exchange core is disposed on one side of the heat recovery module, and the fresh air fan and the exhaust fan are disposed on the other side of the heat recovery module, and the fresh air fan and the exhaust fan are arranged along the height direction of the casing; and / or, the heat exchange shell has a first side and a second side opposite to each other, the fresh air inlet and the fresh air outlet are respectively opened on the first side and the second side, and are respectively located at both ends of the length direction of the heat exchange shell; and / or, the heat exchange tube is a twisted pipe.

[0013] Optionally, the indoor module further includes an indoor fan, and the indoor heat exchanger is disposed between the air outlet side of the fresh air fan and the air inlet side of the indoor fan, and the air outlet side of the indoor fan is connected to the indoor air outlet.

[0014] Optionally, the integrated fresh air conditioner further includes an outdoor module, which is disposed inside the casing, and the heat recovery module is located between the outdoor module and the indoor module; the outdoor module includes an outdoor heat exchanger and an outdoor fan, the outdoor heat exchanger is disposed between the air outlet side of the exhaust fan and the air inlet side of the outdoor fan, and the air outlet side of the outdoor fan is connected to the outdoor air outlet.

[0015] The integrated fresh air conditioner provided in this application embodiment has a heat recovery module installed inside the casing. The heat exchange core of the heat recovery module includes a heat exchange shell and multiple heat exchange tubes spaced apart inside the heat exchange shell. The two ends of the heat exchange tubes are connected to the indoor air inlet and the air inlet side of the exhaust fan, respectively. The fresh air inlet and fresh air outlet of the heat exchange shell are connected to the fresh air outlet and the air inlet side of the fresh air fan, respectively. Under the action of the exhaust fan and the fresh air fan, a portion of the indoor return air enters the interior of the heat exchange tubes, and the outdoor fresh air enters the heat exchange shell and flows through the gaps between the multiple heat exchange tubes. In this way, the outdoor fresh air flowing through the gaps between the multiple heat exchange tubes can exchange heat with the indoor return air inside the heat exchange tubes. This can reduce the temperature difference between the outdoor fresh air and the indoor return air, thereby reducing the overall energy consumption of the integrated fresh air conditioner and playing a role in energy saving and emission reduction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative effort. In the following description, the same reference numerals denote the same parts.

[0017] Figure 1 This is a schematic diagram of a first structure of an integrated fresh air conditioning system provided in an embodiment of this application.

[0018] Figure 2 for Figure 1 The diagram shows the second structural design of the integrated fresh air conditioning system.

[0019] Figure 3 for Figure 2 The diagram shown is a structural schematic of an integrated fresh air conditioner without the casing.

[0020] Figure 4 This is a first cross-sectional schematic diagram of an integrated fresh air conditioning system provided in an embodiment of this application.

[0021] Figure 5 This is a second cross-sectional schematic diagram of an integrated fresh air conditioning system provided in an embodiment of this application.

[0022] Figure 6This is a schematic diagram of a first partial structure of the heat recovery module provided in an embodiment of this application.

[0023] Figure 7 This is a schematic diagram of a second partial structure of the heat recovery module provided in an embodiment of this application.

[0024] Figure 8 for Figure 7 A partial structural schematic diagram of the heat recovery module from another perspective.

[0025] Figure 9 This is a schematic diagram of the heat recovery module provided in the embodiment of this application after omitting the partition.

[0026] Figure 10 for Figure 9 The diagram shows a structural schematic of the heat recovery module from another perspective.

[0027] Figure 11 This is a schematic diagram of the structure of the heat exchange core provided in an embodiment of this application.

[0028] Figure 12 for Figure 11 The diagram shows a cross-sectional view of the heat exchange core.

[0029] Figure 13 This is a schematic diagram of the heat exchange core and base provided in the embodiments of this application.

[0030] Figure 14 for Figure 13 The diagram shows a structural schematic of the heat exchange core and base from another perspective.

[0031] Explanation of icon numbers:

[0032] 100. Casing; 101. Indoor air inlet; 102. Indoor air outlet; 103. Outdoor air inlet; 104. Outdoor air outlet; 105. Fresh air inlet; 200. Indoor module; 210. Indoor heat exchanger; 220. Indoor fan; 300. Heat recovery module; 310. Heat exchange core; 311. Heat exchange shell; 3111. Fresh air inlet; 3112. Fresh air outlet; 312. Heat exchange tube 320. Fresh air fan; 330. Exhaust fan; 340. Housing; 341. Return air chamber; 342. Fresh air chamber; 343. Base; 3431. First vent; 344. Bracket; 3441. Second vent; 345. Partition; 346. Indoor cavity; 347. Outdoor cavity; 350. Air collection box; 400. Outdoor module; 410. Outdoor heat exchanger; 420. Outdoor fan. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] This application provides an integrated fresh air conditioning system, such as... Figures 1 to 14As shown, the integrated fresh air conditioner includes a casing 100, an indoor module 200, and a heat recovery module 300. The casing 100 is provided with an indoor air inlet 101, an indoor air outlet 102, an outdoor air inlet 103, an outdoor air outlet 104, and a fresh air inlet 105. The indoor module 200 is disposed inside the casing 100 and includes an indoor heat exchanger 210 for heat exchange of airflow toward the indoor air outlet 102. The heat recovery module 300 is disposed inside the casing 100 and includes a heat exchange core 310, a fresh air fan 320, and an exhaust fan 330. The heat exchange core... 310 includes a heat exchange shell 311 and a plurality of heat exchange tubes 312 spaced apart in the heat exchange shell 311. The two ends of the heat exchange tubes 312 are respectively connected to the indoor air inlet 101 and the air inlet side of the exhaust fan 330. The air outlet side of the exhaust fan 330 is connected to the outdoor air outlet 104. The heat exchange shell 311 is provided with a fresh air inlet 3111 and a fresh air outlet 3112. The fresh air inlet 3111 is connected to the fresh air vent 105. The fresh air outlet 3112 is connected to the air inlet side of the fresh air fan 320. The air outlet side of the fresh air fan 320 is connected to the indoor air outlet 102.

[0037] The integrated fresh air conditioner provided in this application embodiment includes a heat recovery module 300 installed inside the casing 100. The heat exchange core 310 of the heat recovery module 300 includes a heat exchange shell 311 and a plurality of heat exchange tubes 312 spaced apart within the heat exchange shell 311. The two ends of the heat exchange tubes 312 are respectively connected to the indoor air inlet 101 and the air inlet side of the exhaust fan 330. The fresh air inlet 3111 and the fresh air outlet 3112 of the heat exchange shell 311 are respectively connected to the fresh air outlet 105 and the air inlet side of the fresh air fan 320. With the connection of the exhaust fan 330 and the fresh air fan 320, a portion of the indoor return air enters the interior of the heat exchange tube 312, while the outdoor fresh air enters the heat exchange shell 311 and flows through the gaps between the multiple heat exchange tubes 312. In this way, the outdoor fresh air flowing through the gaps between the multiple heat exchange tubes 312 can exchange heat with the indoor return air in the heat exchange tubes 312. This can reduce the temperature difference between the outdoor fresh air and the indoor return air, thereby reducing the overall energy consumption of the integrated fresh air air conditioner and playing a role in energy saving and emission reduction.

[0038] Specifically, a first channel is formed within multiple heat exchange tubes 312, and a second channel is formed in the gaps between the multiple heat exchange tubes 312. The first channel is connected to the exhaust fan 330, and the second channel is connected to the fresh air fan 320. Under the action of the exhaust fan 330 and the fresh air fan 320, indoor return air can enter the first channel through the indoor air inlet 101, and outdoor fresh air can enter the second channel sequentially through the fresh air inlet 105 and the fresh air inlet 3111 of the heat exchange shell 311. When the outdoor fresh air flows through the second channel, it exchanges heat with the indoor return air flowing through the first channel. This can reduce the temperature difference between the outdoor fresh air and the indoor return air, thereby reducing the overall energy consumption of the integrated fresh air air conditioner and playing a role in energy saving and emission reduction.

[0039] For example, when the integrated fresh air air conditioner is in fresh air cooling mode, part of the indoor return air flows out through the indoor air outlet 102, and another part of the indoor return air enters the first channel. At the same time, outdoor fresh air enters the second channel through the fresh air inlet 105. In this way, the higher temperature outdoor fresh air entering the second channel exchanges heat with the lower temperature indoor return air in the first channel, which lowers the temperature of the outdoor fresh air in the second channel. This allows the air conditioning system to achieve heat recovery of the indoor return air while supplying fresh air, thereby reducing the overall energy consumption of the air conditioner and lowering the overall indoor air outlet temperature, reducing indoor air outlet temperature fluctuations, and improving user comfort.

[0040] When the integrated fresh air air conditioner is in fresh air heating mode, part of the indoor return air flows out through the indoor air outlet 102, and another part of the indoor return air enters the first channel. At the same time, outdoor fresh air enters the second channel through the fresh air inlet 105. In this way, the lower temperature outdoor fresh air entering the second channel exchanges heat with the higher temperature indoor return air in the first channel, causing the temperature of the outdoor fresh air in the second channel to rise. This allows the air conditioning system to achieve heat recovery of the indoor return air while supplying fresh air, thereby reducing the overall energy consumption of the air conditioner and increasing the overall indoor air outlet temperature, reducing indoor air outlet temperature fluctuations, and improving user comfort.

[0041] In some embodiments of this application, such as Figures 6-10 As shown, the heat recovery module 300 also includes a housing 340, within which the heat exchange core 310, fresh air fan 320, and exhaust fan 330 are all located. By housing the heat exchange core 310, fresh air fan 320, and exhaust fan 330 together in the same housing 340, they form a modular integrated structure, facilitating subsequent maintenance and replacement of the heat recovery module 300.

[0042] The fresh air fan 320 and the exhaust fan 330 are respectively located at the upper and lower ends of the shell 340. The heat exchange tubes 312 extend along the height of the shell 340. The fresh air inlet 3111 and the fresh air outlet 3112 are respectively located at the lower and upper ends of the heat exchange shell 311. With this configuration, the fresh air fan 320 can drive the outdoor fresh air to flow upward through the gaps between the multiple heat exchange tubes 312, and the exhaust fan 330 can drive the indoor return air to flow downward within the heat exchange tubes 312. This causes the indoor return air inside the heat exchange tubes 312 and the outdoor fresh air outside the heat exchange tubes 312 to flow in opposite directions, thereby improving heat exchange efficiency.

[0043] Optionally, the housing 340 forms a return air cavity 341, which is independent of the interior of the heat exchange shell 311 (i.e., the return air cavity 341 is not connected to the interior of the heat exchange shell 311). One end of the multiple heat exchange tubes 312 is connected to the air inlet side of the exhaust fan 330 through the return air cavity 341. By setting the return air cavity 341, the indoor return airflow flowing out of the multiple heat exchange tubes 312 is concentrated and integrated to optimize the energy efficiency of the air conditioner.

[0044] In some embodiments of this application, there are multiple heat exchange cores 310, and the shell 340 forms a fresh air cavity 342 that is independent of the return air cavity 341. The fresh air inlets 3111 of the multiple heat exchange cores 310 are connected to the fresh air outlet 105 through the fresh air cavity 342. The heat recovery module 300 also includes an air collection box 350. The fresh air outlets 3112 of the multiple heat exchange cores 310 are connected to the air inlet side of the fresh air fan 320 through the air collection box 350. Specifically, the fresh air outlets 3112 of the heat exchange shells 311 of the multiple heat exchange cores 310 are all located in the air collection box 350, and the air collection box 350 is connected to the air inlet side of the fresh air fan 320. By setting up a fresh air cavity 342, a fresh air inlet 105 can be connected to the fresh air inlets 3111 of multiple heat exchange cores 310, which can reduce the number of connecting parts and make the structure more compact. By setting up an air collection box 350, the outdoor fresh air flow from multiple heat exchange shells 311 can be concentrated and integrated to optimize the energy efficiency of the air conditioner.

[0045] Optionally, multiple heat exchange cores 310 are connected sequentially, with adjacent heat exchange cores 310 forming a V-shaped structure, and the heat exchange tubes 312 of the multiple heat exchange cores 310 are parallel to each other. For example, such as... Figure 4 , Figure 13 and Figure 14 As shown, the heat recovery module 300 includes four heat exchange cores 310, which are connected in sequence and two adjacent heat exchange cores 310 form a V-shaped structure, thereby connecting the four heat exchange cores 310 to form a W-shaped structure.

[0046] In some embodiments of this application, such as Figures 6-10 As shown, the housing 340 includes a base 343 and a support 344. Both the support 344 and the exhaust fan 330 are mounted on the base 343, and the fresh air fan 320 is mounted on the top of the support 344. A return air chamber 341 is formed within the base 343, and a first ventilation opening 3431 communicating with the return air chamber 341 is provided on the top surface of the base 343. The air inlet side of the exhaust fan 330 communicates with the return air chamber 341 through the first ventilation opening 3431. This arrangement allows the fresh air fan 320 and the exhaust fan 330 to be positioned at the top and bottom of the housing 340, respectively, to drive the outdoor fresh air and indoor return air to flow in opposite directions.

[0047] Optionally, the housing 340 also includes a partition 345, which is vertically disposed within the bracket 344 and divides the internal space of the housing 340 into an indoor cavity 346 and an outdoor cavity 347. The air outlet side of the fresh air fan 320 and the indoor air inlet 101 are both connected to the indoor air outlet 102 through the indoor cavity 346, and the outdoor cavity 347 is connected to both the outdoor air inlet 103 and the outdoor air outlet 104. Specifically, the bracket 344 is provided with a second ventilation opening 3441, through which the indoor air inlet 101 is connected to the indoor cavity 346, and the indoor cavity 346 is connected to the indoor air outlet 102; the outdoor air inlet 103, the outdoor cavity 347, and the outdoor air outlet 104 are connected in sequence.

[0048] Optionally, the heat exchange core 310 is located on one side of the heat recovery module 300, and the fresh air fan 320 and exhaust fan 330 are located on the other side of the heat recovery module 300, with the fresh air fan 320 and exhaust fan 330 arranged along the height of the casing 100. This arrangement makes the overall layout of the heat recovery module 300 more reasonable and the structure more compact.

[0049] In some embodiments of this application, the heat exchange shell 311 has opposing first and second sides, with a fresh air inlet 3111 and a fresh air outlet 3112 respectively located on the first and second sides, and at opposite ends along the length of the heat exchange shell 311. For example, as... Figures 11-14 As shown, the fresh air inlet 3111 and the fresh air outlet 3112 are respectively located on the first side and the second side of the heat exchange shell 311, and at the lower end and the upper end of the heat exchange shell 311 respectively.

[0050] In some embodiments of this application, the heat exchange tube 312 is a twisted pipe. By using a twisted pipe as the heat exchange tube 312, the heat exchange area can be increased and the heat exchange efficiency can be improved. Specifically, the twisted directions of multiple heat exchange tubes 312 are consistent, and multiple heat exchange tubes 312 are arranged side by side in several rows, with uniform gaps formed between adjacent heat exchange tubes 312.

[0051] Optionally, the heat exchange tube 312 can be made of a metal material with high heat exchange efficiency, such as aluminum or copper tubes.

[0052] In some embodiments of this application, such as Figure 3 and Figure 4 As shown, the indoor module 200 also includes an indoor fan 220. An indoor heat exchanger 210 is positioned between the outlet side of the fresh air fan 320 and the inlet side of the indoor fan 220. The outlet side of the indoor fan 220 is connected to the indoor air outlet 102. By installing the indoor fan 220, it can effectively blow the airflow after heat exchange in the indoor heat exchanger 210 towards the indoor air outlet 102 to achieve air supply.

[0053] Optional, such as Figure 3 and Figure 4 As shown, the integrated fresh air conditioner also includes an outdoor module 400, which is housed within the casing 100. A heat recovery module 300 is located between the outdoor module 400 and the indoor module 200. In other words, the heat recovery module 300 is positioned in the center of the casing 100, with the indoor module 200 and outdoor module 400 located on either side of it. This arrangement ensures that the center of gravity of the integrated fresh air conditioner is centered, preventing the unit from tipping over during installation due to eccentricity.

[0054] Specifically, the outdoor module 400 includes an outdoor heat exchanger 410 and an outdoor fan 420. The outdoor heat exchanger 410 is located between the air outlet side of the exhaust fan 330 and the air inlet side of the outdoor fan 420, and the air outlet side of the outdoor fan 420 is connected to the outdoor air outlet 104. The outdoor heat exchanger 410 is used to exchange heat with the airflow flowing towards the outdoor air outlet 104, and the outdoor fan 420 is used to blow the heat-exchanged airflow from the outdoor heat exchanger 410 towards the indoor air outlet 102.

[0055] The following example uses the fresh air cooling mode. Figures 1-5 The operating principle of the integrated fresh air conditioning system shown is explained. Figure 5 The thick solid arrow in the image indicates the direction of outdoor fresh air flow. Figure 5 The thick dashed arrows in the image indicate the flow direction of indoor return air that exchanges heat with outdoor fresh air:

[0056] Outdoor fresh air enters the heat exchange shell 3111 through the fresh air inlet 105. Under the negative pressure of the fresh air fan 320, it flows upward through the gap between two adjacent heat exchange tubes 312, then flows out through the fresh air outlet 3112 of the heat exchange shell 311 and enters the air collection box 350. From the air collection box 350, it flows to the air inlet side of the fresh air fan 320, then through the air outlet side of the fresh air fan 320 to the indoor heat exchanger 210, and finally is discharged from the indoor air outlet 102. Indoor return air flows into the unit from the indoor return air inlet at the top of the casing 100. After the casing 100, a portion of the indoor return air flows to the indoor heat exchanger 210 and is then discharged from the indoor air outlet 102. The other portion of the indoor return air, under the negative pressure of the exhaust fan 330, flows to the heat exchange core 310, flows downwards inside the multiple heat exchange tubes 312, enters the return air cavity 341 on the base 343, is then blown towards the outdoor heat exchanger 410, and finally exits from the outdoor air outlet 104. Simultaneously, the outdoor return air enters the casing 100 from the outdoor air inlet 103 and is blown towards the outdoor heat exchanger 410, finally exiting from the outdoor air outlet 104. Because the outdoor fresh air and indoor return air flow through the outer and inner sides of the heat exchange tubes 312 respectively, and flow in opposite directions, heat exchange occurs between the outdoor fresh air and the indoor return air, lowering the temperature of the outdoor fresh air flowing towards the indoor heat exchanger 210. This reduces the temperature variation of the indoor air outlet, improves user comfort, and reduces overall energy consumption, thus achieving energy conservation and emission reduction.

[0057] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0058] The integrated fresh air conditioner provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An integrated fresh air conditioning system, characterized in that, include: The housing (100) is provided with an indoor air inlet (101), an indoor air outlet (102), an outdoor air inlet (103), an outdoor air outlet (104), and a fresh air inlet (105); An indoor module (200) is disposed within the housing (100) and includes an indoor heat exchanger (210) for exchanging heat with the airflow flowing toward the indoor air outlet (102); A heat recovery module (300), disposed within the housing (100), includes a heat exchange core (310), a fresh air fan (320), and an exhaust fan (330); the heat exchange core (310) includes a heat exchange shell (311) and a plurality of heat exchange tubes (312) spaced apart within the heat exchange shell (311), the two ends of the heat exchange tubes (312) being connected to the indoor air inlet (101) and the air inlet side of the exhaust fan (330), respectively. The exhaust fan (330) is connected to the outdoor air outlet (104) on the air outlet side; the heat exchange shell (311) is provided with a fresh air inlet (3111) and a fresh air outlet (3112), the fresh air inlet (3111) is connected to the fresh air vent (105), the fresh air outlet (3112) is connected to the air inlet side of the fresh air fan (320), and the air outlet side of the fresh air fan (320) is connected to the indoor air outlet (102).

2. The integrated fresh air conditioning system according to claim 1, characterized in that, The heat recovery module (300) also includes a housing (340), and the heat exchange core (310), the fresh air fan (320) and the exhaust fan (330) are all located inside the housing (340); The fresh air fan (320) and the exhaust fan (330) are respectively located at the upper and lower ends of the shell (340), the heat exchange tube (312) extends along the height direction of the shell (340), and the fresh air inlet (3111) and the fresh air outlet (3112) are respectively located at the lower and upper ends of the heat exchange shell (311).

3. The integrated fresh air conditioning system according to claim 2, characterized in that, The housing (340) has a return air cavity (341) that is independent of the interior of the heat exchange shell (311). One end of the plurality of heat exchange tubes (312) is connected to the air inlet side of the exhaust fan (330) through the return air cavity (341).

4. The integrated fresh air conditioning system according to claim 3, characterized in that, The number of heat exchange cores (310) is multiple, and the shell (340) forms a fresh air cavity (342) that is independent of the return air cavity (341). The fresh air inlets (3111) of the multiple heat exchange cores (310) are connected to the fresh air outlet (105) through the fresh air cavity (342). The heat recovery module (300) also includes an air collection box (350), and the fresh air outlets (3112) of the plurality of heat exchange cores (310) are connected to the air inlet side of the fresh air fan (320) through the air collection box (350).

5. The integrated fresh air conditioning system according to claim 4, characterized in that, Multiple heat exchange cores (310) are connected in sequence, and two adjacent heat exchange cores (310) form a V-shaped structure. The heat exchange tubes (312) of the multiple heat exchange cores (310) are parallel to each other.

6. The integrated fresh air conditioning system according to claim 3, characterized in that, The housing (340) includes a base (343) and a bracket (344). The bracket (344) and the exhaust fan (330) are both disposed on the base (343), and the fresh air fan (320) is disposed on the top of the bracket (344). The return air cavity (341) is formed inside the base (343), and the top surface of the base (343) is provided with a first vent (3431) communicating with the return air cavity (341). The air inlet side of the exhaust fan (330) is connected to the return air cavity (341) through the first vent (3431).

7. The integrated fresh air conditioning system according to claim 6, characterized in that, The housing (340) also includes a partition (345), which is vertically arranged in the bracket (344) and divides the internal space of the housing (340) into an indoor cavity (346) and an outdoor cavity (347). The air outlet side of the fresh air fan (320) and the indoor air inlet (101) are both connected to the indoor air outlet (102) through the indoor cavity (346), and the outdoor cavity (347) is connected to the outdoor air inlet (103) and the outdoor air outlet (104).

8. The integrated fresh air conditioning system according to any one of claims 1 to 7, characterized in that, The heat exchange core (310) is disposed on one side of the heat recovery module (300), the fresh air fan (320) and the exhaust fan (330) are disposed on the other side of the heat recovery module (300), and the fresh air fan (320) and the exhaust fan (330) are arranged along the height direction of the casing (100); And / or, the heat exchange shell (311) has a first side and a second side opposite to each other, the fresh air inlet (3111) and the fresh air outlet (3112) are respectively opened on the first side and the second side, and are respectively located at both ends of the length direction of the heat exchange shell (311); And / or, the heat exchange tube (312) is a twisted tube.

9. The integrated fresh air conditioning system according to claim 1, characterized in that, The indoor module (200) also includes an indoor fan (220), and the indoor heat exchanger (210) is disposed between the air outlet side of the fresh air fan (320) and the air inlet side of the indoor fan (220). The air outlet side of the indoor fan (220) is connected to the indoor air outlet (102).

10. The integrated fresh air conditioning system according to claim 9, characterized in that, The integrated fresh air air conditioner also includes an outdoor module (400), which is disposed inside the housing (100), and the heat recovery module (300) is located between the outdoor module (400) and the indoor module (200); The outdoor module (400) includes an outdoor heat exchanger (410) and an outdoor fan (420). The outdoor heat exchanger (410) is located between the air outlet side of the exhaust fan (330) and the air inlet side of the outdoor fan (420). The air outlet side of the outdoor fan (420) is connected to the outdoor air outlet (104).

Images