Fresh air module and air conditioner

Abstract

The utility model provides a fresh air module and an air conditioner. The fresh air module comprises a shell, a filter part, a fresh air door body and an indoor air door body, an air cavity is formed in the shell, a fresh air inlet, an indoor air inlet and an air outlet which communicate with the air cavity are formed in the shell, and the fresh air inlet and the indoor air inlet are formed in different planes of the shell and located at the two ends of the shell; the filter part is arranged in the air cavity, the fresh air door body is arranged at the fresh air inlet, and the indoor air door body is arranged at the indoor air inlet; the indoor air door body is connected with the fresh air door body through a linkage mechanism, and when the indoor air door body opens the indoor air inlet, the fresh air door body closes the fresh air inlet; and when the indoor air door body closes the indoor air inlet, the fresh air door body opens the fresh air inlet. The fresh air inlet and the indoor air inlet of the fresh air module are formed in the different planes of the shell and located at the two ends of the shell, and the indoor air door body and the fresh air door body are connected through the linkage mechanism, so that the position of the indoor air inlet is not restrained by the position of the fresh air inlet, and the practicability of the fresh air module is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioning, and in particular relates to a fresh air module and an air conditioner. Background Art

[0002] As people's quality of life improves, air conditioner users are increasingly demanding higher indoor air quality. To meet this demand, some existing air conditioners have added fresh air modules, which allow for both fresh air introduction and indoor air purification.

[0003] However, the fresh air inlet and indoor air inlet of the existing fresh air module need to be very close to each other in order to be opened and closed in conjunction with a valve device, so that the position of the indoor air inlet is restricted by the fresh air inlet, reducing the practicality of the fresh air module. Utility Model Content

[0004] The embodiments of the present application provide a fresh air module and an air conditioner to solve the problem that the position of the indoor air inlet of the existing fresh air module is restricted by the fresh air inlet.

[0005] In the first aspect, an embodiment of the present application provides a fresh air module, which includes a shell, a filter element, a fresh air door body and an indoor air door body. An air cavity is formed in the shell, and the shell is provided with a fresh air inlet, an indoor air inlet and an air outlet that are connected to the air cavity. The fresh air inlet and the indoor air inlet are arranged in different planes of the shell and are located at both ends of the shell; the filter element is arranged in the air cavity, the fresh air door body is arranged at the fresh air inlet to open and close the fresh air inlet, and the indoor air door body is arranged at the indoor air inlet to open and close the indoor air inlet; the indoor air door body is connected to the fresh air door body by a linkage mechanism, when the indoor air door body opens the indoor air inlet, the fresh air door body closes the fresh air inlet; when the indoor air door body closes the indoor air inlet, the fresh air door body opens the fresh air inlet.

[0006] Optionally, the fresh air module also includes a driving member and a first gear. The edge of the indoor air door body is provided with a tooth portion, and the tooth portion is engaged with the first gear. The driving member can drive the first gear to drive the indoor air door body to rotate; the indoor air door body has a first position for opening the indoor air inlet and a second position for closing the indoor air inlet during the rotation process.

[0007] Optionally, the indoor air door body is a second gear, and the second gear is provided with an air inlet; when the second gear is located at the first position, the air inlet at least partially overlaps with the indoor air inlet; when the second gear is located at the second position, the air inlet is staggered with the indoor air inlet.

[0008] Optionally, a portion of the edge of the second gear is provided with the tooth portion, and the remaining edge of the second gear is not engaged with the first gear.

[0009] Optionally, the second gear includes an air inlet portion provided with the air inlet and a wind shield portion for closing the indoor air inlet; when the second gear is located at the second position, along the axial direction of the second gear, the projection contour of the wind shield portion on the shell is located outside the indoor air inlet.

[0010] Optionally, the linkage mechanism includes a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the indoor air door body, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is connected to the fresh air door body.

[0011] Optionally, the linkage mechanism is a third gear, the third gear is provided on the fresh air door body, and the third gear is engaged with the tooth portion of the indoor air door body.

[0012] Optionally, the shell has a first wall and a second wall arranged circumferentially around the first wall, the indoor air inlet is arranged on the first wall and located at the upper end of the shell, and the fresh air inlet is arranged on the second wall and located at the lower end of the shell.

[0013] Optionally, the shell includes an air inlet shell and a volute, and the volute and the air inlet shell enclose the air cavity; a fan is provided in the volute, the fresh air inlet and the indoor air inlet are both arranged on the air inlet shell and located on the air inlet side of the fan, and the air outlet is arranged on the volute and located on the air outlet side of the fan.

[0014] Optionally, the fresh air module further includes a fresh air duct, which is connected to the fresh air inlet.

[0015] In a second aspect, an embodiment of the present application further provides an air conditioner, comprising a casing and the above-mentioned fresh air module, wherein the fresh air module is arranged on the casing.

[0016] The fresh air module and air conditioner provided in the embodiments of the present application are designed so that the position of the indoor air inlet is not restricted by the position of the fresh air outlet by arranging the fresh air inlet and the indoor air inlet on different planes of the shell and at both ends of the shell, and the indoor air door body is connected to the fresh air door body through a linkage mechanism, thereby improving the practicality of the fresh air module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are merely some embodiments of this application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. In the following description, the same reference numerals represent the same parts.

[0018] Figure 1 This is a schematic diagram of the structure of the fresh air module provided in an embodiment of the present application.

[0019] Figure 2 A schematic structural diagram of the air inlet housing provided in an embodiment of the present application.

[0020] Figure 3 This is a schematic structural diagram of the fresh air door body and indoor air assembly provided in an embodiment of the present application.

[0021] Figure 4 This is a schematic structural diagram of the indoor damper body provided in an embodiment of the present application.

[0022] Figure 5 This is a structural diagram of the fresh air module provided in an embodiment of the present application when it is in indoor air purification mode.

[0023] Figure 6 This is a structural diagram of the fresh air module provided in an embodiment of the present application when in fresh air mode.

[0024] Description of Figure Numbers:

[0025] 100. Shell; 101. Fresh air inlet; 102. Indoor air inlet; 103. Air outlet; 104. First wall; 105. Second wall; 110. Air inlet shell; 120. Volute; 200. Fresh air door body; 310. Driving member; 320. First gear; 330. Indoor air door body; 331. Gear portion; 332. Air inlet; 333. Air inlet portion; 334. Wind shield portion; 335. Shaft hole; 336. First hinge shaft; 400. Linkage mechanism; 410. First connecting rod; 420. Second connecting rod; 421. Second hinge shaft; 422. Connecting shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described 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 those skilled in the art without making creative efforts are within the scope of protection of this application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] In this application, the word “exemplary” is used to mean “serving as an example, instance, or illustration.” Any embodiment described in this application as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0029] The embodiment of the present application provides a fresh air module, such as Figures 1 to 6 As shown, the fresh air module includes a housing 100 , a filter element, a fresh air door body 200 and an indoor air door body 330 .

[0030] Among them, a wind cavity is formed in the shell 100, and a fresh air inlet 101, an indoor air inlet 102 and an air outlet 103 are provided on the shell 100. The fresh air inlet 101, the indoor air inlet 102 and the air outlet 103 are all connected to the wind cavity. The fresh air inlet 101 and the indoor air inlet 102 are arranged on different planes of the shell 100 and are located at both ends of the shell 100. For example, the fresh air inlet 101 and the indoor air inlet 102 are arranged at the upper and lower ends or the left and right ends of the shell 100; a filter is arranged in the wind cavity to filter the air entering the wind cavity. For filtering and purification, the fresh air door body 200 is arranged at the fresh air inlet 101 to open and close the fresh air inlet 101, and the indoor air door body 330 is arranged at the indoor air inlet 102 to open and close the indoor air inlet 102; the indoor air door body 330 is connected to the fresh air door body 200 through a linkage mechanism 400, when the indoor air door body 330 opens the indoor air inlet 102, the fresh air door body 200 closes the fresh air inlet 101; when the indoor air door body 330 closes the indoor air inlet 102, the fresh air door body 200 opens the fresh air inlet 101.

[0031] The fresh air module provided in the embodiment of the present application improves the practicality of the fresh air module by arranging the fresh air inlet 101 and the indoor air inlet 102 on different planes of the shell 100 and at both ends of the shell 100, and connecting the indoor air door body 330 and the fresh air door body 200 through a linkage mechanism, so that the position of the indoor air inlet 102 is not restricted by the position of the fresh air inlet 101.

[0032] Specifically, the fresh air module has an indoor air purification mode and a fresh air mode. When the indoor carbon dioxide concentration is high, the fresh air mode can be activated, opening the fresh air inlet 101 and closing the indoor air inlet 102. When the indoor PM2.5 concentration is high, the indoor air purification mode can be activated, opening the indoor air inlet 102 and closing the fresh air inlet 101. By switching between the fresh air mode and the indoor air purification mode, indoor air quality can be maintained in different scenarios at a low cost.

[0033] In some embodiments of the present application, the housing 100 includes a first wall 111 and a second wall 112 disposed circumferentially around the first wall 111. The indoor air inlet 102 is disposed on the first wall 111 at the upper end of the housing 100, and the fresh air inlet 101 is disposed on the second wall 112 at the lower end of the housing 100. This arrangement makes the fresh air module more rationally structured and convenient for installation and use.

[0034] It can be understood that the fresh air inlet and the indoor air inlet of the existing fresh air module are switched using the same door body, the area of the indoor air inlet is small, and the air volume is small; however, the present application arranges the indoor air inlet 102 and the fresh air inlet 101 on different walls of the shell 100, and opens and closes the indoor air inlet 102 and the fresh air inlet 101 respectively through the indoor air door body 330 and the fresh air door body 200 (i.e., two different door bodies), and the indoor air door body 330 is connected to the fresh air door body 200 through a linkage mechanism 400, thereby avoiding the use of the same door body for switching of the fresh air inlet 101 and the indoor air inlet 102 without increasing the number of driving parts, thereby greatly increasing the area of the indoor air inlet 102 and improving the air volume.

[0035] Optionally, the housing 100 includes an air inlet housing 110 and a volute 120, which together form an air cavity. A fan is disposed within the volute 120. The fresh air inlet 101 and the indoor air inlet 102 are both disposed on the air inlet housing 110 and located on the air inlet side of the fan. The air outlet 103 is disposed on the volute 120 and located on the air outlet side of the fan. This arrangement allows air entering the air cavity from the indoor air inlet 102 and the fresh air inlet 101 on the air inlet housing 110 to be accelerated by the fan and then discharged into the room through the air outlet 103 on the volute 120.

[0036] Specifically, such as Figure 5As shown, when the fresh air module is in the indoor air purification mode, the fresh air door body 200 closes the fresh air inlet 101, and the indoor air door body 330 opens the indoor air inlet 102, and the fan generates suction, so that the indoor air enters the air cavity through the indoor air inlet 102, and the indoor air is filtered by the filter element and discharged into the room from the air outlet 103; Figure 6 As shown, when the fresh air module is in the fresh air mode, the fresh air door body 200 opens the fresh air inlet 101 and the indoor air door body 330 closes the indoor air inlet 102. The fan generates suction, allowing the outdoor fresh air to enter the air cavity through the fresh air inlet 101. After the outdoor fresh air is filtered by the filter element, it is discharged into the room from the air outlet 103.

[0037] In some embodiments of the present application, the fresh air module further includes a driver 310 and a first gear 320. The edge of the indoor damper body 330 is provided with a tooth portion 331 that meshes with the first gear 320. The driver 310 can drive the first gear 320 to rotate the indoor damper body 330. During rotation, the indoor damper body 330 has a first position that opens the indoor air inlet 102 and a second position that closes the indoor air inlet 102. Specifically, when the indoor damper body 330 is in the first position, the fresh air damper body 200 closes the fresh air inlet 101; when the indoor damper body 330 is in the second position, the fresh air damper body 200 opens the fresh air inlet 101. The tooth portion 331 refers to a structure composed of a plurality of teeth arranged continuously.

[0038] The fresh air module provided in the embodiment of the present application is configured by providing a tooth portion 331 meshing with the first gear 320 on the indoor air damper plate, and the driving member 310 can drive the first gear 320 to drive the indoor air damper plate to rotate, so that when the indoor air damper plate rotates to the first position opening the indoor air inlet 102, the fresh air damper plate closes the fresh air inlet 101, and when the indoor air damper plate rotates to the first position closing the indoor air inlet 102, the fresh air damper plate opens the fresh air inlet 101, thereby achieving the simultaneous driving of the indoor air damper plate and the fresh air damper plate by one driving member 310, reducing the use of the driving member 310 while ensuring the normal opening and closing of the fresh air inlet 101 and thereby reducing the equipment cost.

[0039] Optionally, the indoor damper body 330 is rotatably mounted on the housing 100 to open and close the indoor air inlet 102. For example, the housing 100 is provided with a rotating shaft, and the indoor damper body 330 is provided with an axis hole 335, through which the rotating shaft passes, thereby enabling the indoor damper body 330 to be rotatably mounted on the housing 100.

[0040] Optional, such as Figure 1As shown, the fresh air inlet 101 is arranged at the bottom of the air inlet shell 110, the driving member 310 and the first gear 320 are arranged at the top of the air inlet shell 110, the indoor air inlet 102 and the indoor damper body 330 are both arranged on the side of the air inlet shell 110 away from the volute 120 and close to the top of the air inlet shell 110, and the air outlet 103 is arranged at the top of the volute 120.

[0041] In some embodiments of the present application, Figures 1 to 6 As shown, the indoor damper body 330 is a second gear, and the second gear is provided with an air inlet 332, that is, the indoor damper body 330 is a gear structure provided with an air inlet 332; Figure 5 As shown, when the second gear is in the first position, the air inlet 332 and the indoor air inlet 102 at least partially overlap, so that the indoor wind can enter the air cavity through the air inlet 332 and the indoor air inlet 102 in sequence; Figure 6 As shown, when the second gear is located at the second position, the air inlet 332 and the indoor air inlet 102 are staggered, so that the indoor wind energy cannot enter the air cavity through the air inlet 332 and the indoor air inlet 102.

[0042] Specifically, when the fresh air module is in the indoor air purification mode, the indoor air door body 330 is in the first position, at this time the fresh air door body 200 closes the fresh air inlet 101, and the air inlet 332 at least partially overlaps with the indoor air inlet 102, so that the indoor wind can enter the air cavity through the air inlet 332 and the indoor air inlet 102 in sequence, and the indoor air is filtered by the filter element and discharged to the room from the air outlet 103; when the fresh air module is in the fresh air mode, the indoor air door body 330 is in the second position, at this time the air inlet 332 and the indoor air inlet 102 are staggered (that is, the indoor air door body 330 closes the indoor air inlet 102), and the fresh air door body 200 opens the fresh air inlet 101, so that the outdoor fresh air enters the air cavity through the fresh air inlet 101, and the outdoor fresh air is filtered by the filter element and discharged to the room from the air outlet 103.

[0043] Optional, such as Figure 4 As shown, a portion of the edge of the second gear is provided with teeth 331, and the remaining edge of the second gear does not mesh with the first gear 320. In other words, a portion of the edge of the second gear is provided with teeth 331, and the remaining edge is not provided with teeth 331. For example, the length of the edge of the second gear provided with teeth 331 is greater than or equal to half the circumference of the second gear.

[0044] Optionally, the second gear includes an air inlet portion 333 having an air inlet 332 and a wind shield portion 334 for closing the indoor air inlet 102. When the second gear is in the second position, along the axial direction of the second gear, the projection of the wind shield portion 334 on the housing 100 is located outside the indoor air inlet 102. With this arrangement, when the second gear is in the second position (i.e., the fresh air module is in fresh air mode), there is no gap between the edge of the wind shield portion 334 and the edge of the air inlet 332, thereby preventing indoor air from entering the air cavity through the gap and affecting the effect of reducing indoor carbon dioxide in the fresh air mode.

[0045] Optionally, the driving member 310 can be a motor, the motor shaft of the motor is connected to the first gear 320 to drive the first gear 320 to rotate, and when the first gear 320 rotates, it drives the indoor air door body 330 to rotate to open or close the indoor air inlet 102; when the indoor air door body 330 rotates, it drives the fresh air door body 200 to move to open or close the fresh air inlet 101.

[0046] In some embodiments of the present application, Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, the linkage mechanism 400 includes a first connecting rod 410 and a second connecting rod 420. One end of the first connecting rod 410 is hinged to the indoor air door body 330, and the other end of the first connecting rod 410 is hinged to one end of the second connecting rod 420. The other end of the second connecting rod 420 is connected to the fresh air door body 200. By providing the above-mentioned linkage mechanism 400, a transmission connection between the indoor air door body 330 and the fresh air door body 200 can be achieved, so that when the indoor air door body 330 rotates, the fresh air door body 200 can be driven to rotate together through the connecting rod assembly, so that the fresh air door body 200 opens or closes the fresh air inlet 101.

[0047] Optional, such as Figure 3 As shown, a first hinge shaft 336 is provided on the indoor damper body 330, and a first hinge hole and a second hinge hole are respectively provided at both ends of the first connecting rod 410. The first hinge shaft 336 is passed through the first hinge hole, thereby realizing the hinge connection between the indoor damper body 330 and one end of the first connecting rod 410; a second hinge shaft 421 is provided at one end of the second connecting rod 420, and the second hinge shaft 421 is passed through the second hinge hole of the first connecting rod 410, thereby realizing the hinge connection between one end of the second connecting rod 420 and the other end of the first connecting rod 410; a connecting shaft 422 is provided at the other end of the second connecting rod 420, and the connecting shaft 422 is connected to the fresh air door body 200, thereby realizing the connection between the other end of the second connecting rod 420 and the fresh air body.

[0048] Specifically, when the driving member 310 drives the first gear 320 to rotate the indoor damper body 330, the rotating indoor damper body 330 will drive the fresh air damper body 200 to rotate synchronously, so that the fresh air damper body 200 opens or closes the fresh air inlet 101. Specifically, when the driving member 310 drives the first gear 320 to rotate the indoor damper body 330 to the first position, the indoor damper body 330 opens the indoor air inlet 102, and the fresh air damper body 200 rotates to the position closing the fresh air inlet 101; when the driving member 310 drives the first gear 320 to rotate the indoor damper body 330 to the second position, the indoor damper body 330 closes the indoor air inlet 102, and the fresh air damper body 200 rotates to the position opening the fresh air inlet 101.

[0049] Alternatively, in other embodiments of the present application, the linkage mechanism 400 may be a third gear disposed on the fresh air door body 200, and meshing with the tooth portion 331 of the indoor air door body 330. In other words, the transmission connection between the indoor air door body 330 and the fresh air door body 200 can be achieved by using a third gear in place of the first connecting rod 410 and the second connecting rod 420 described above. Specifically, when the indoor air door body 330 is a second gear, the third gear meshes with the second gear.

[0050] Optionally, the fresh air module further includes a fresh air duct, which is connected to the fresh air inlet 101 and is used to introduce outdoor fresh air into the fresh air inlet 101 .

[0051] The present application also provides an air conditioner comprising a housing and a fresh air module, the fresh air module being disposed on the housing. The specific structure of the fresh air module is as described in the above embodiments. Since the present air conditioner utilizes all of the technical solutions of all of the above embodiments, it at least has all of the beneficial effects brought about by the technical solutions of the above embodiments, and therefore will not be further elaborated here.

[0052] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] The above is a detailed introduction to the fresh air module and air conditioner provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fresh air module, characterized in that: include: A shell (100), wherein an air cavity is formed in the shell (100), and the shell (100) is provided with a fresh air inlet (101), an indoor air inlet (102), and an air outlet (103) that are in communication with the air cavity, wherein the fresh air inlet (101) and the indoor air inlet (102) are arranged on different planes of the shell (100) and are located at two ends of the shell (100); A filter element is arranged in the air cavity; A fresh air door body (200) is provided at the fresh air inlet (101) to open and close the fresh air inlet (101); An indoor air door body (330) is provided at the indoor air inlet (102) to open and close the indoor air inlet (102); The indoor air door body (330) is connected to the fresh air door body (200) via a linkage mechanism (400); when the indoor air door body (330) opens the indoor air inlet (102), the fresh air door body (200) closes the fresh air inlet (101); and when the indoor air door body (330) closes the indoor air inlet (102), the fresh air door body (200) opens the fresh air inlet (101).

2. The fresh air module according to claim 1, characterized in that: The fresh air module further comprises a driving member (310) and a first gear (320); an edge of the indoor air door body (330) is provided with a tooth portion (331), and the tooth portion (331) is meshed with the first gear (320); The driving member (310) can drive the first gear (320) to drive the indoor air door body (330) to rotate, and the indoor air door body (330) has a first position for opening the indoor air inlet (102) and a second position for closing the indoor air inlet (102) during the rotation process.

3. The fresh air module according to claim 2, characterized in that: The indoor damper body (330) is a second gear, and the second gear is provided with an air inlet (332); When the second gear is located at the first position, the air inlet (332) and the indoor air inlet (102) at least partially overlap; when the second gear is located at the second position, the air inlet (332) and the indoor air inlet (102) are staggered.

4. The fresh air module according to claim 3, characterized in that: Part of the edge of the second gear is provided with the tooth portion (331), and the remaining edge of the second gear is not engaged with the first gear (320).

5. The fresh air module according to claim 3, characterized in that: The second gear includes an air inlet portion (333) provided with the air inlet (332) and a wind shield portion (334) for closing the indoor air inlet (102); When the second gear is located at the second position, along the axial direction of the second gear, the projection outline of the wind shielding portion (334) on the housing (100) is located outside the indoor air inlet (102).

6. The fresh air module according to any one of claims 2 to 5, characterized in that: The linkage mechanism (400) comprises a first connecting rod (410) and a second connecting rod (420), one end of the first connecting rod (410) being hinged to the indoor air door body (330), the other end of the first connecting rod (410) being hinged to one end of the second connecting rod (420), and the other end of the second connecting rod (420) being connected to the fresh air door body (200); Alternatively, the linkage mechanism (400) is a third gear, the third gear is provided on the fresh air door body (200), and the third gear is meshed with the tooth portion (331) of the indoor air door body (330).

7. The fresh air module according to claim 1, characterized in that: The shell (100) has a first wall (111) and a second wall (112) arranged around the circumference of the first wall (111); the indoor air inlet (102) is arranged on the first wall (111) and located at the upper end of the shell (100); and the fresh air inlet (101) is arranged on the second wall (112) and located at the lower end of the shell (100).

8. The fresh air module according to claim 1 or 7, characterized in that: The housing (100) includes an air inlet housing (110) and a volute (120), wherein the volute (120) and the air inlet housing (110) enclose the air cavity; A fan is provided in the volute (120), the fresh air inlet (101) and the indoor air inlet (102) are both provided on the air inlet housing (110) and located on the air inlet side of the fan, and the air outlet (103) is provided on the volute (120) and located on the air outlet side of the fan.

9. The fresh air module according to claim 1, characterized in that: The fresh air module further comprises a fresh air duct, which is connected to the fresh air inlet (101).

10. An air conditioner, characterized in that: The air conditioner includes a casing and the fresh air module according to any one of claims 1 to 9, and the fresh air module is arranged on the casing.

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