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 volute, the volute comprises a first side wall, a first overflowing space is defined by the first side wall, the first side wall is provided with an air outlet part communicating with the first overflowing space, and the air outlet part is used for discharging air into a room; the air inlet cover comprises a second side wall, a second overflowing space is defined by the second side wall, the second overflowing space is communicated with the first overflowing space, an air inlet part communicated with the second overflowing space is arranged on the second side wall, and outdoor air enters the second overflowing space through the air inlet part; the first side wall is rotationally connected with the second side wall so that the included angle between the air inlet direction of the air inlet part and the air outlet direction of the air outlet part can be changed. According to the fresh air module, the first side wall or the second side wall is directly rotated, the relative position of the air outlet part and the air inlet part is changed, and then the included angle between the air outlet direction and the air inlet direction is changed, so that the air speed of the air outlet part is increased or decreased.

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] A fresh air air conditioner is an air conditioner that uses a centrifugal fan to achieve circulation and ventilation between indoor and outdoor air. It usually includes a fresh air duct, a volute and a centrifugal fan. The volute is provided with an outlet for exhausting air into the room. The rotation of the centrifugal fan generates negative pressure, allowing outdoor air to enter the room through the fresh air duct and the volute in turn, so as to improve the circulation efficiency of indoor air.

[0003] However, the wind speed at the air outlet of the fresh air air conditioner with the above structure is not adjustable, and the user cannot adjust the wind speed according to his or her physical needs during use, resulting in a poor experience. 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 wind speed at the air outlet of the existing fresh air air conditioner cannot be adjusted.

[0005] The embodiment of the present application provides a fresh air module, which is applied to an air conditioner. The fresh air module includes:

[0006] The volute comprises a first side wall surrounding a first flow space, wherein the first side wall is provided with an air outlet portion communicating with the first flow space, and the air outlet portion is used to discharge air into the room;

[0007] The air inlet cover comprises a second side wall surrounding a second flow space, the second flow space is connected to the first flow space, the second side wall is connected to one end of the first side wall and has the same extension direction as the first side wall, the second side wall is provided with an air inlet portion connected to the second flow space, and outdoor wind enters the second flow space through the air inlet portion;

[0008] The first side wall is rotatably connected to the second side wall to change the angle between the air inlet direction of the air inlet and the air outlet direction of the air outlet, thereby adjusting the wind speed of the air outlet; wherein the wind speed of the air outlet is proportional to the size of the angle.

[0009] Optionally, the second side wall is rotatably connected to one end of the first side wall, and the rotation direction of the second side wall is perpendicular to the extension direction of the first side wall; the rotation of the second side wall drives the air inlet part to rotate to adjust the angle.

[0010] Optionally, the first side wall is rotatably connected to one end of the second side wall, and the rotation direction of the first side wall is perpendicular to the extension direction of the first side wall; the rotation of the first side wall drives the air outlet to rotate to adjust the angle.

[0011] Optionally, the air outlet portion includes an air guide duct, which extends along the circumference of the first side wall. An air guide channel is provided through the air guide duct, and the air guide channel is connected to the first flow space. The cross-sectional area of ​​the air guide channel gradually increases toward the end away from the first side wall.

[0012] Optionally, the air outlet portion further includes an air guide plate, which is rotatably connected to one end of the air guide channel away from the first flow space to adjust the air outlet direction of the air guide channel.

[0013] Optionally, the extension direction of the first side wall is perpendicular to the direction of gravity, and the air guide ducts include three air guide ducts which are arranged at intervals along the circumference of the first side wall to discharge air in upward, middle and downward directions respectively.

[0014] Optionally, the extension direction of the first side wall is perpendicular to the gravity direction, and the air guide pipes include two air guide pipes which are relatively arranged on two sides of the first side wall to discharge air upward and downward respectively;

[0015] Among them, when the outdoor temperature is within the first preset range, the air duct for upward air outlet is opened, and the air duct for downward air outlet is closed; when the outdoor temperature is within the second preset range, the air duct for downward air outlet is opened, and the air duct for upward air outlet is closed.

[0016] Optionally, a filter assembly is provided in the air inlet cover, and the filter assembly is located in the second flow space to absorb impurities in the flow gas.

[0017] Optionally, a rotor is further included, which is rotatably arranged in the first flow space, and the rotation direction of the rotor is perpendicular to the extension direction of the first side wall. The rotor rotates to allow outdoor air to enter the room through the air inlet.

[0018] The present application also provides an air conditioner, comprising:

[0019] A housing, provided with an air outlet and an air inlet;

[0020] As mentioned above, the fresh air module is installed in the shell, and the air outlet is arranged corresponding to the air outlet, and the air inlet is arranged corresponding to the air inlet.

[0021] In the fresh air module provided by the embodiment of the present application, since the extension direction of the first side wall and the second side wall is the same, when the angle is 180°, the air inlet and air outlet directions are opposite, and the loss of the gas when flowing through the second flow space and the first flow space is minimal. At this time, the wind speed of the air outlet is the largest. The smaller the angle, the greater the loss of the gas when flowing through the second flow space and the first flow space, and the smaller the wind speed of the air outlet. When it is necessary to adjust the wind speed of the air outlet, the first side wall or the second side wall is directly rotated to change the relative position of the air outlet and the air inlet, thereby changing the angle between the air outlet direction and the air inlet direction to increase or decrease the wind speed of the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0023] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0024] Figure 1 This is an exploded view of the fresh air module provided in an embodiment of the present application.

[0025] Figure 2 A schematic diagram of the structure of the fresh air module provided in an embodiment of the present application.

[0026] Figure 3 for Figure 2 sectional view of .

[0027] Figure 4 A partial schematic diagram of the air duct of the fresh air module provided in an embodiment of the present application.

[0028] Figure 5 A structural diagram of a volute of a fresh air module provided in an embodiment of the present application in an example.

[0029] Figure 6 A structural diagram of the volute of the fresh air module provided in an embodiment of the present application in another example.

[0030] Figure 7 A structural diagram of the volute of the fresh air module provided in an embodiment of the present application in another example.

[0031] Figure 8 A schematic structural diagram of the shell of an air conditioner provided in an embodiment of the present application.

[0032] Fig. 9An exploded view of the housing and fresh air module of the air conditioner provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. volute; 11. first side wall; 111. first flow space; 112. air guide duct; 1121. air guide channel; 113. air guide plate;

[0035] 2. air inlet cover; 21. second side wall; 211. second flow space; 212. air inlet portion;

[0036] 3. Connecting plate;

[0037] 4. Filter components;

[0038] 5. Rotary wheel;

[0039] 6. The third driving member;

[0040] 7. Air inlet pipe;

[0041] 8. Shell. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely 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, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0043] The embodiment of the present application provides a fresh air module and an air conditioner to solve the problem that the wind speed at the air outlet of the existing fresh air air conditioner cannot be adjusted, which will be described below in conjunction with the accompanying drawings.

[0044] The fresh air module provided in the embodiment of the present application is applied to air conditioners. Figure 1 , Figure 2 and Figure 3 , Figure 1 This is an exploded view of the fresh air module provided in the embodiment of the present application. Figure 2 This is a schematic diagram of the structure of the fresh air module provided in the embodiment of the present application. Figure 3 for Figure 2The fresh air module includes a volute 1 and an air inlet cover 2. The volute 1 includes a first side wall 11 enclosing a first flow space 111, and the first side wall 11 is provided with an air outlet connected to the first flow space 111, and the air outlet is used to discharge air into the room; the air inlet cover 2 includes a second side wall 21 enclosing a second flow space 211, and the second flow space 211 is connected to the first flow space 111, the second side wall 21 is connected to one end of the first side wall 11 and has the same extension direction as the first side wall 11, and the second side wall 21 is provided with an air inlet 212 connected to the second flow space 211, and the outdoor wind enters the second flow space 211 through the air inlet 212; the first side wall 11 is rotatably connected to the second side wall 21 to change the angle between the air inlet direction of the air inlet 212 and the air outlet direction of the air outlet, thereby adjusting the wind speed of the air outlet; wherein the wind speed of the air outlet is proportional to the size of the angle.

[0045] The fresh air module provided in the embodiment of the present application has the same extension direction of the first side wall 11 and the second side wall 21. Therefore, when the angle is 180°, the air inlet and air outlet directions are opposite, and the loss of the gas when flowing through the second flow space 211 and the first flow space 111 is minimal. At this time, the wind speed of the air outlet is the largest. The smaller the angle, the greater the loss of the gas when flowing through the second flow space 211 and the first flow space 111, and the smaller the wind speed of the air outlet. When it is necessary to adjust the wind speed of the air outlet, the first side wall 11 or the second side wall 21 is directly rotated to change the relative position of the air outlet and the air inlet 212, thereby changing the angle between the air outlet direction and the air inlet direction to increase or decrease the wind speed of the air outlet.

[0046] Optionally, the second side wall 21 is rotatably connected to one end of the first side wall 11, and the rotation direction of the second side wall 21 is perpendicular to the extension direction of the first side wall 11; the rotation of the second side wall 21 drives the air inlet 212 to rotate to adjust the angle. That is, at this time, the first side wall 11 of the volute 1 is fixed, and the air outlet on the first side wall 11 is also fixed, so the air outlet direction of the air outlet is fixed, and the wind speed of the air outlet can only be adjusted by rotating the second side wall 21 of the air inlet cover 2. The specific position of the air inlet 212 is not further limited here, and it can be set on the second side wall 21.

[0047] Optionally, the air inlet portion 212 includes an air inlet pipe 7, which is convexly arranged outside the second side wall 21 and communicated with the second flow space 211, and the air inlet pipe 7 guides the outdoor gas to the second flow space 211. The shape and length of the air inlet pipe 7 are not further limited here. Further, the air inlet pipe 7 is elastic to meet the rotation requirements of the second side wall 21. When the second side wall 21 rotates, the air inlet pipe 7 follows the second side wall 21 to rotate elastically and will not break due to stretching.

[0048] Optionally, the fresh air module provided in the embodiment of the present application also includes an extension pipe, one end of which is connected to the air inlet pipe 7 and the other end is extended outdoors. By providing the extension pipe, the length of the air inlet pipe 7 is extended, and the installation of the fresh air module is also facilitated.

[0049] Optionally, the air outlet portion includes an air guide pipe 112, which extends along the circumference of the first side wall 11, and an air guide channel 1121 is provided in the air guide pipe 112, which is connected to the first flow space 111, and the cross-sectional area of ​​the air guide channel 1121 gradually increases toward the end away from the first side wall 11. That is, the cross-sectional area at the connection port between the air guide channel 1121 and the first flow space 111 is small, and the cross-sectional area gradually increases toward the end away from the first flow space 111, so that the pressure at the connection port between the air guide channel 1121 and the first flow space 111 is large, thereby increasing the speed of the gas entering the air guide channel 1121 from the first flow space 111, and improving the air outlet speed of the volute 1 from the perspective of structural design.

[0050] Optionally, see Figure 4 , Figure 4 A partial schematic diagram of the air guide 112 of the fresh air module provided in the embodiment of the present application, wherein the air outlet portion further includes an air guide plate 113, which is rotatably connected to one end of the air guide channel 1121 away from the first flow space 111 to adjust the air outlet direction of the air guide channel 1121. The setting direction of the air guide plate 113 can be further determined according to the use requirements. Among them, the air guide plate 113 can be rotated to block the air guide channel 1121, thereby achieving the closure of the air guide channel 1121. At this time, the area of ​​the air guide plate 113 is the same as the cross-sectional area of ​​the corresponding air guide channel 1121.

[0051] In some examples, the air guide plate 113 can be arranged in a horizontal direction to separate the air guide channel 1121 into two upper and lower channels. The rotating axis of the air guide plate 113 also extends in the horizontal direction. The air guide plate 113 rotates along the rotating axis, so that the upper and lower channels discharge air upward or downward at the same time.

[0052] In other examples, the air guide plate 113 can be set in the vertical direction to separate the air guide channel 1121 into two left and right channels. The rotating axis of the air guide plate 113 also extends in the vertical direction. The air guide plate 113 rotates along the rotating axis, so that the left and right channels discharge air to the left or right at the same time.

[0053] Optionally, a first driving member is provided outside the air guide 112, and the first driving member is rotatably connected to the air guide plate 113 to drive the air guide plate 113 to rotate in the conducting channel. Specifically, the first driving member may be a rotary motor.

[0054] Optionally, the extension direction of the first side wall 11 is perpendicular to the gravity direction, and the air ducts 112 include three and are spaced apart along the circumference of the first side wall 11 to discharge air in the upper, middle, and lower directions, respectively. Since the extension direction of the first side wall 11 is perpendicular to the gravity direction, the three air ducts 112 on the first side wall 11 have a height difference in the gravity direction, so that the three air ducts 112 can discharge air in directions of different heights. When the three air ducts 112 discharge air in the upper, middle, and lower directions, respectively, the user can open or close any air duct 112 as needed.

[0055] For example, when the outdoor temperature is higher than the first threshold, the air duct 112 for downward air discharge is opened, and the air duct 112 for upward air discharge and the air duct 112 for middle air discharge is closed; when the outdoor temperature is lower than or equal to the first threshold and higher than the second threshold, the air duct 112 for middle air discharge is opened, and the air duct 112 for upward air discharge and downward air discharge is closed; when the outdoor temperature is lower than or equal to the second threshold, the air duct 112 for upward air discharge is opened, and the air duct 112 for middle air discharge and downward air discharge is closed. The first threshold may be 28°, and the second threshold may be 24°. That is, when the outdoor temperature is high, hot air is discharged downward, and after the hot air enters the room, it will flow from the bottom to the top of the room, thereby accelerating the circulation speed of the indoor gas; when the outdoor temperature is moderate, the air can be discharged to the middle; when the outdoor temperature is low, cold air is discharged upward, and at this time, after the cold air enters the room, it will flow from the top to the bottom of the room, thereby accelerating the circulation speed of the indoor gas.

[0056] In some examples, the three air ducts 112 may be respectively disposed at the top, the bottom, and the middle portion of the first side wall 11 facing the front side of the air conditioner, and in this case, the angle between the three air ducts 112 is 90°.

[0057] For other examples, see Figure 7 , Figure 7 The structural diagram of the volute 1 of the fresh air module provided in the embodiment of the present application in another example, the three air ducts 112 can be evenly distributed along the circumference of the first side wall 11, and the angle between the three air ducts 112 is 120°.

[0058] For other examples, see Figure 5 , Figure 5 The volute 1 of the fresh air module provided in an embodiment of the present application is a structural diagram in an example, wherein three air guide ducts 112 can be adjacently arranged along the circumference of the first side wall 11 to achieve intensive air outlet at a narrow angle.

[0059] Optionally, see Figure 6 , Figure 6The structural diagram of the volute 1 of the fresh air module provided in the embodiment of the present application in another example, the extension direction of the first side wall 11 is perpendicular to the gravity direction, and the air duct 112 includes two and is relatively arranged on both sides of the first side wall 11 to discharge air upward and downward respectively; wherein, when the outdoor temperature is within the first preset range, the air duct 112 for discharging air upward is opened, and the air duct 112 for discharging air downward is closed; when the outdoor temperature is within the second preset range, the air duct 112 for discharging air downward is opened, and the air duct 112 for discharging air upward is closed. The first preset range can be 22° to 26°, and the second preset range can be 26° to 33°. That is, when the outdoor temperature is high, hot air is discharged downward, and after the hot air enters the room, it will flow from the bottom to the top of the room, thereby accelerating the circulation speed of the indoor gas; when the outdoor temperature is low, cold air is discharged upward, and at this time, after the cold air enters the room, it will flow from the top to the bottom of the room, thereby accelerating the circulation speed of the indoor gas.

[0060] As an alternative embodiment, the air duct 112 may also include two air ducts 112 that are relatively arranged on both sides of the first side wall 11 to discharge air to the front and rear directions of the air conditioner respectively. When the wind speed felt by the user is relatively high, the air duct 112 that discharges air forward may be closed, and the air duct 112 that discharges air backward may be opened; when the user wants to increase the wind speed, both the air ducts 112 that discharge air forward and backward may be opened.

[0061] Optionally, a filter assembly 4 is provided in the air inlet cover 2, and the filter assembly 4 is located in the second flow space 211 to absorb impurities in the flow gas. Further, the filter assembly 4 includes a filter screen, and the extension direction of the filter screen is perpendicular to the flow direction of the gas to absorb impurities such as particulate matter in the gas, thereby purifying the air and improving the air quality.

[0062] Furthermore, the filter screen may be provided with multiple layers along the flow direction of the gas to improve the filtering effect.

[0063] Optionally, the filter assembly 4 may further include activated carbon.

[0064] As an alternative implementation, the fresh air module provided in the embodiment of the present application also includes a connecting plate 3, which is connected between the air inlet cover 2 and the volute 1. The connecting plate 3 is penetrated by a mounting hole, and the filter assembly 4 is installed in the mounting hole.

[0065] Further, the air inlet cover 2 also includes a first end surface connected to the first side wall 11 near one end of the second side wall 21, the first end surface, one end of the connecting plate 3 is fixedly connected to the second side wall 21 of the air inlet cover 2, and the other end is rotatably connected to the first end surface. Specifically, a pulley is provided on the connecting plate 3 facing the first side wall 11, and an annular slide rail is provided on the first end surface recessed toward the connecting plate 3, the pulley is slidably connected in the slide rail, and when the second side wall 21 rotates relative to the first side wall 11, the pulley slides in the slide rail.

[0066] Optionally, a second driving member is further included, and the second driving member is rotatably connected to the first side wall 11 or the second side wall 21 to rotate the first side wall 11 relative to the second side wall 21 , or to rotate the second side wall 21 relative to the first side wall 11 .

[0067] Optionally, the fresh air module provided in the embodiment of the present application further includes a rotor 5, which is rotatably arranged in the first flow space 111, and the rotation direction of the rotor 5 is perpendicular to the extension direction of the first side wall 11, and the rotor 5 rotates so that the outdoor gas enters the room through the air inlet 212. Specifically, the rotor 5 can be a centrifugal impeller, and the gas enters the centrifugal impeller in the first flow space 111 from the second flow space 211, and flows into the room through the air outlet under the action of the centrifugal impeller. That is, through the rotation of the centrifugal impeller, negative pressure is formed in the first flow space 111 and the second flow space 211, and the outdoor gas is sucked into the air inlet cover 2 by the air inlet 212. The wind speed of the air outlet can also be adjusted by adjusting the rotation speed of the centrifugal impeller. This adjustment method can be used in conjunction with the adjustment of the angle between the air outlet direction of the air outlet and the air inlet direction of the air inlet 212, thereby improving the adjustment range and adjustment accuracy of the air outlet speed, so as to achieve the most comfortable air outlet speed for the user.

[0068] Furthermore, the fresh air module provided in the embodiment of the present application also includes a third driving member 6, which is rotatably connected to the wheel 5 to drive the wheel 5 to rotate.

[0069] As another embodiment, the first side wall 11 is rotatably connected to one end of the second side wall 21, and the rotation direction of the first side wall 11 is perpendicular to the extension direction of the first side wall 11. At this time, the second side wall 21 of the air inlet cover 2 is fixed, and the air inlet portion 212 on the second side wall 21 is also fixed, that is, the air inlet direction of the air inlet portion 212 is fixed, and by rotating the first side wall 11, both the air outlet direction and the wind speed of the air outlet can be changed.

[0070] In some examples, the air inlet 212 is arranged at the top of the second side wall 21 along the direction of gravity. When the air outlet direction of the air outlet is rotated to downward, the angle is 180°. At this time, the air outlet discharges air downward and the wind speed is maximum. When the air outlet direction of the air outlet is rotated to upward, the angle is 0°. At this time, the air outlet discharges air upward and the wind speed is minimum.

[0071] In other examples, the air inlet 212 is arranged at the bottom of the second side wall 21 along the direction of gravity. When the air outlet direction of the air outlet is rotated to downward, the angle is 0°, and the air outlet discharges air downward with the minimum wind speed. When the air outlet direction of the air outlet is rotated to upward, the angle is 180°, and the air outlet discharges air upward with the maximum wind speed.

[0072] Optionally, the volute 1 also includes a second end face opposite to the first end face, and the first end face, the second end face and the first side wall 11 are combined to form a closed space. The first end face is penetrated by an opening, and the first flow space 111 is connected with the second flow space 211 through the opening, so that after the gas in the second flow space 211 enters the first flow space 111 through the opening, it can only enter the room through the air outlet without air leakage.

[0073] Optionally, the air inlet hood 2 also includes a third end face, which is connected to an end of the second side wall 21 away from the first side wall 11. The third end face, the second side wall 21 and the first end face together enclose a closed space, so that the gas in the second flow space 211 can only enter the first flow space 111 through the opening on the first end face, thereby increasing the wind speed out of the opening.

[0074] The present application also provides an air conditioner. Figure 8 and Fig. 9 , Figure 8 A schematic diagram of the structure of the housing 8 of the air conditioner provided in the embodiment of the present application, Fig. 9 The exploded view of the housing 8 and the fresh air module of the air conditioner provided in the embodiment of the present application, the air conditioner comprises the housing 8 and the fresh air module as described above. The housing 8 is provided with an air outlet and an air inlet; the fresh air module as described above is installed in the housing 8, and the air outlet is arranged corresponding to the air outlet, and the air inlet 212 is arranged corresponding to the air inlet.

[0075] Optionally, the air conditioner may be a wall-mounted air conditioner or a cabinet air conditioner.

[0076] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0077] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0078] The fresh air module and air conditioner provided in the embodiments of the present application are introduced in detail above. 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, according to 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, applied to air conditioners, characterized in that: The fresh air module comprises: The volute comprises a first side wall surrounding a first flow space, wherein the first side wall is provided with an air outlet portion communicating with the first flow space, and the air outlet portion is used to discharge air into the room; The air inlet cover comprises a second side wall surrounding a second flow space, the second flow space is connected to the first flow space, the second side wall is connected to one end of the first side wall and has the same extension direction as the first side wall, the second side wall is provided with an air inlet portion connected to the second flow space, and outdoor wind enters the second flow space through the air inlet portion; The first side wall is rotatably connected to the second side wall to change the angle between the air inlet direction of the air inlet and the air outlet direction of the air outlet, thereby adjusting the wind speed of the air outlet; wherein the wind speed of the air outlet is proportional to the size of the angle.

2. The fresh air module according to claim 1, characterized in that: The second side wall is rotatably connected to one end of the first side wall, and the rotation direction of the second side wall is perpendicular to the extension direction of the first side wall; the rotation of the second side wall drives the air inlet part to rotate to adjust the angle.

3. The fresh air module according to claim 1, characterized in that: The first side wall is rotatably connected to one end of the second side wall, and the rotation direction of the first side wall is perpendicular to the extension direction of the first side wall; the rotation of the first side wall drives the air outlet to rotate to adjust the angle.

4. The fresh air module according to claim 2, characterized in that: The air outlet portion includes an air guide duct, which extends along the circumference of the first side wall. An air guide channel is provided through the air guide duct, which is connected to the first flow space, and the cross-sectional area of ​​the air guide channel gradually increases toward the end away from the first side wall.

5. The fresh air module according to claim 4, characterized in that: The air outlet portion further includes an air guide plate, which is rotatably connected to one end of the air guide channel away from the first flow space to adjust the air outlet direction of the air guide channel.

6. The fresh air module according to claim 4, characterized in that: The extension direction of the first side wall is perpendicular to the gravity direction. The air guide pipes include three air guide pipes which are arranged at intervals along the circumference of the first side wall to discharge air in upward, middle and downward directions respectively.

7. The fresh air module according to claim 4, characterized in that: The extension direction of the first side wall is perpendicular to the gravity direction, and the air guide pipes include two air guide pipes which are arranged oppositely on two sides of the first side wall to discharge air upward and downward respectively; Among them, when the outdoor temperature is within the first preset range, the air duct for upward air outlet is opened, and the air duct for downward air outlet is closed; when the outdoor temperature is within the second preset range, the air duct for downward air outlet is opened, and the air duct for upward air outlet is closed.

8. The fresh air module according to claim 1, characterized in that: A filter assembly is provided in the air inlet cover, and the filter assembly is located in the second flow space to absorb impurities in the flow gas.

9. The fresh air module according to claim 1, characterized in that: It also includes a rotor, which is rotatably arranged in the first flow space, and the rotation direction of the rotor is perpendicular to the extension direction of the first side wall. The rotor rotates to allow outdoor air to enter the room through the air inlet.

10. An air conditioner, characterized in that: include: A housing, provided with an air outlet and an air inlet; The fresh air module as described in any one of claims 1 to 9 is installed in the shell, and the air outlet is arranged corresponding to the air outlet, and the air inlet is arranged corresponding to the air inlet.

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