Fresh air module and air conditioning equipment

Abstract

The invention relates to a fresh air module and air conditioning equipment, the fresh air module comprises a shell, an air pipe, a fan, a first air door and a second air door, the shell is provided with an exhaust air inlet and a fresh air outlet, and an exhaust air duct and a fresh air duct are arranged in the shell; the air pipe is connected with the shell and selectively communicates with the fresh air duct and the exhaust air duct; the fan is arranged in the shell, and the fan is provided with a fan inlet and a fan outlet; the first air door and the second air door are movably connected with the shell so as to be switched between an exhaust mode and a fresh air mode, the first air door is used for enabling the fan inlet to communicate with one of the exhaust inlet and the fresh air duct, and the second air door is used for enabling the fan outlet to communicate with one of the exhaust duct and the fresh air outlet. According to the fresh air module, the exhaust mode and the fresh air mode can be switched through the first air door and the second air door, the structure of the fresh air module is effectively simplified, and the cost of the fresh air module is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air conditioning equipment, and particularly relates to a fresh air module and an air conditioning equipment. Background Art

[0002] As the requirements of users for the living environment are getting higher and higher, the pursuit gradually rises from the regulation of the temperature and humidity of the environment to the pursuit of air quality, and air purifiers and air conditioning equipment with fresh air functions emerge as the times require. In related technologies, air conditioning equipment usually can only achieve the fresh air function, and some air conditioning equipment has a fast exhaust function, but the switching structure between the fresh air function and the exhaust function is complex and the cost is high. Summary of the Invention

[0003] The present disclosure provides a fresh air module to simplify the structure of the fresh air module and reduce the cost of the fresh air module.

[0004] The fresh air module of the present disclosure includes a housing, an air duct, a fan, a first air damper and a second air damper. The housing is provided with an exhaust inlet and a fresh air outlet, and an exhaust air duct and a fresh air duct are arranged inside the housing; the air duct is connected to the housing and can be selectively communicated with the fresh air duct and the exhaust air duct; the fan is arranged inside the housing, and the fan has a fan inlet and a fan outlet; the first air damper and the second air damper are movably connected to the housing to switch between an exhaust mode and a fresh air mode. The first air damper is used to connect the fan inlet to one of the exhaust inlet and the fresh air duct, and the second air damper is used to connect the fan outlet to one of the exhaust air duct and the fresh air outlet; in the exhaust mode, the fan inlet is communicated with the exhaust inlet, and the fan outlet is communicated with the exhaust air duct; in the fresh air mode, the fan inlet is communicated with the fresh air duct, and the fan outlet is communicated with the fresh air outlet.

[0005] Optionally, the air duct has a first pipe orifice, a second pipe orifice and a third pipe orifice. The first pipe orifice is communicated with the second pipe orifice and the third pipe orifice. The second pipe orifice is communicated with the exhaust air duct, and the third pipe orifice is communicated with the fresh air duct.

[0006] Optionally, the air duct includes a first pipe section, a second pipe section and a third pipe section. The first pipe orifice is arranged at the first end of the first pipe section, the second pipe orifice is arranged at the first end of the second pipe section, and the third pipe orifice is arranged at the first end of the third pipe section. The second ends of the first pipe section, the second pipe section and the third pipe section are communicated with each other.

[0007] Optionally, the housing is provided with an exhaust air outlet and a fresh air inlet. The second pipe orifice is communicated with the exhaust air duct through the exhaust air outlet, and the third pipe orifice is communicated with the fresh air duct through the fresh air inlet.

[0008] Optionally, the exhaust air outlet and the fresh air inlet are arranged on the same side of the housing.

[0009] Optionally, the fresh air duct has a first fresh air orifice and a second fresh air orifice. The first fresh air orifice is communicated with the air duct, and the first air damper is used to communicate the fan inlet with one of the exhaust air inlet and the second fresh air orifice.

[0010] Optionally, the first air damper is switchable between a first position and a second position; in the exhaust air mode, the first air damper is located at the first position, the first air damper closes the second fresh air orifice and opens the exhaust air inlet; in the fresh air mode, the first air damper is located at the second position, the first air damper opens the second fresh air orifice and closes the exhaust air inlet.

[0011] Optionally, a first abutting portion and a second abutting portion are arranged in the housing; in the first position, the first air damper abuts against the first abutting portion; in the second position, the first air damper abuts against the second abutting portion.

[0012] Optionally, the first abutting portion is arranged at the second fresh air orifice, and the second abutting portion is arranged at the exhaust air inlet.

[0013] Optionally, the plane where the second fresh air orifice is located intersects with the plane where the exhaust air inlet is located, and at least a part of the second fresh air orifice is arranged corresponding to at least a part of the exhaust air inlet.

[0014] Optionally, the first air damper is rotatably connected to the housing.

[0015] Optionally, the exhaust air duct has a first exhaust air orifice and a second exhaust air orifice. The first exhaust air orifice is communicated with the air duct, and the second air damper is used to communicate the fan outlet with one of the second exhaust air orifice and the fresh air outlet.

[0016] Optionally, the second air damper is switchable between a third position and a fourth position; in the exhaust air mode, the second air damper is located at the third position, the second air damper opens the second exhaust air orifice and closes the fresh air outlet; in the fresh air mode, the second air damper is located at the fourth position, the second air damper closes the second exhaust air orifice and opens the fresh air outlet.

[0017] Optionally, a third abutting portion and a fourth abutting portion are provided inside the housing; in the third position, the second air damper abuts against the third abutting portion; in the fourth position, the second air damper abuts against the fourth abutting portion.

[0018] Optionally, both the third abutting portion and the fourth abutting portion are provided at the air outlet of the blower and are located on opposite sides of the air outlet of the blower.

[0019] Optionally, the plane where the second air outlet is located intersects the plane where the fresh air outlet is located, and at least a part of the second air outlet is arranged corresponding to at least a part of the fresh air outlet.

[0020] Optionally, the second air damper is rotatably connected to the housing.

[0021] Optionally, the fresh air module includes a filtering device, the filtering device is arranged between the air duct and the blower, and the filtering device is used for filtering the air flow flowing from the air duct into the housing.

[0022] Optionally, the housing is provided with a fresh air inlet, the fresh air duct is communicated with the fresh air inlet, and the filtering device is arranged inside the housing and is located in the fresh air duct.

[0023] Optionally, the filtering device is located at the fresh air inlet.

[0024] Optionally, the housing includes a bottom shell and a cover plate, the bottom shell encloses a cavity with an opening, the cover plate is detachably connected to the bottom shell and seals the opening of the bottom shell, and the filtering device is arranged inside the cavity and is detachably connected to the bottom shell.

[0025] Optionally, the fresh air duct has an opening facing the cover plate, and the opening of the fresh air duct allows the filtering device to pass through.

[0026] Optionally, the filtering device includes a bracket and a filter screen, the bracket is connected to the housing, and the filter screen is detachably connected to the bracket.

[0027] Optionally, the blower includes a wind guiding ring, and the wind guiding ring is detachably arranged at the air inlet of the blower.

[0028] Optionally, the air duct and the exhaust air inlet are arranged on different sides of the housing; and / or, the air duct and the fresh air outlet are arranged on different sides of the housing; and / or, the exhaust air inlet and the fresh air outlet are arranged on different sides of the housing.

[0029] Optionally, the blower includes a blower housing and an impeller. The impeller is disposed inside the blower housing, and both the blower inlet and the blower outlet are provided on the blower housing. The blower housing includes a volute and a gland. The volute defines a blower chamber with an opening at the top. An exhaust chamber with an opening at the top is provided inside the housing. The gland is connected to the volute. A part of the gland seals the opening of the blower chamber, and another part of the gland seals the opening of the exhaust chamber to form the exhaust air duct.

[0030] The present disclosure also provides an air conditioning device.

[0031] The air conditioning device of the present disclosure includes the fresh air module described in any one of the above.

[0032] When the fresh air module of the present disclosure performs the exhaust function, the first damper and the second damper move, so that the fresh air module is in the exhaust mode, the blower inlet is communicated with the exhaust inlet, and the blower outlet is communicated with the exhaust air duct. At this time, the indoor air flow is driven by the blower, enters the housing through the exhaust inlet, and then sequentially passes through the blower inlet, the blower outlet, the exhaust air duct and is discharged to the outside through the air duct. When performing the fresh air function, the first damper and the second damper move, so that the fresh air module is in the fresh air mode, the blower inlet is communicated with the fresh air duct, and the blower outlet is communicated with the fresh air outlet. At this time, the outdoor air flow is driven by the blower, sequentially enters the housing through the air duct and the fresh air duct, and then sequentially passes through the blower inlet and the blower outlet and is discharged to the indoor through the fresh air outlet. The fresh air module of the present disclosure can realize the switching between the exhaust mode and the fresh air mode through the first damper and the second damper, effectively simplifies the structure of the fresh air module, and reduces the cost of the fresh air module. Description of the Drawings

[0033] Figure 1 is a bottom view of the fresh air module in the exhaust mode according to an embodiment of the present disclosure.

[0034] Figure 2 is Figure 1 the A-A view of

[0035] Figure 3 is a sectional view of the bottom view of the fresh air module in the exhaust mode according to an embodiment of the present disclosure.

[0036] Figure 4 is the bottom view (with the cover plate hidden) of the fresh air module in the exhaust mode according to an embodiment of the present disclosure.

[0037] Figure 5 is a sectional view of the front view of the fresh air module in the fresh air mode according to an embodiment of the present disclosure.

[0038] Figure 6It is a cross-sectional view of a top view of a fresh air module in a fresh air mode according to an embodiment of the present disclosure.

[0039] Figure 7 It is an exploded view of a filtering device of a fresh air module according to an embodiment of the present disclosure.

[0040] Figure 8 It is an exploded view of the filtering device of the fresh air module from another perspective according to an embodiment of the present disclosure.

[0041] Reference numerals:

[0042] 100, fresh air module;

[0043] 1, housing; 11, bottom case; 111, exhaust air duct; 1111, first exhaust air outlet; 1112, second exhaust air outlet; 112, fresh air duct; 1121, first fresh air inlet; 1122, second fresh air inlet; 113, exhaust air inlet; 1131, air inlet grille; 114, fresh air outlet; 115, exhaust air outlet; 116, fresh air inlet; 117, first abutting portion; 118, second abutting portion; 119, third abutting portion; 120, fourth abutting portion; 12, cover plate;

[0044] 2, air duct; 21, first pipe section; 211, first pipe orifice; 22, second pipe section; 221, second pipe orifice; 23, third pipe section; 231, third pipe orifice;

[0045] 3, fan; 31, fan housing; 311, fan inlet; 312, fan outlet; 313, volute; 314, gland; 32, impeller; 33, motor; 34, air guide ring;

[0046] 4, first air damper;

[0047] 5, second air damper;

[0048] 6, filtering device; 61, bracket; 62, filter screen. Detailed description of the embodiments

[0049] The embodiments of the present disclosure will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, and should not be construed as a limitation of the present disclosure.

[0050] As Figures 1 to 6As shown in the figure, the fresh air module 100 of the present disclosure embodiment includes a housing 1, an air duct 2, a fan 3, a first air damper 4, and a second air damper 5. The housing 1 is provided with an exhaust air inlet 113 and a fresh air outlet 114. An exhaust air duct 111 and a fresh air duct 112 are provided inside the housing 1. The air duct 2 is connected to the housing 1 and is selectively communicated with the fresh air duct 112 and the exhaust air duct 111. The fan 3 is arranged inside the housing 1. The fan 3 has a fan inlet 311 and a fan outlet 312. The first air damper 4 and the second air damper 5 are movably connected to the housing 1 to switch between an exhaust air mode and a fresh air mode. The first air damper 4 is used to communicate the fan inlet 311 with one of the exhaust air inlet 113 and the fresh air duct 112. The second air damper 5 is used to communicate the fan outlet 312 with one of the exhaust air duct 111 and the fresh air outlet 114. In the exhaust air mode, the fan inlet 311 is communicated with the exhaust air inlet 113, and the fan outlet 312 is communicated with the exhaust air duct 111. In the fresh air mode, the fan inlet 311 is communicated with the fresh air duct 112, and the fan outlet 312 is communicated with the fresh air outlet 114.

[0051] For the fresh air module 100 of the present disclosure embodiment, when performing the exhaust air function, as Figure 2 and Figure 3 shown, the first air damper 4 and the second air damper 5 move, so that the fresh air module 100 is in the exhaust air mode, the fan inlet 311 is communicated with the exhaust air inlet 113, and the fan outlet 312 is communicated with the exhaust air duct 111. At this time, the indoor air flow is driven by the fan 3, enters the housing 1 through the exhaust air inlet 113, and then sequentially passes through the fan inlet 311, the fan outlet 312, the exhaust air duct 111 and is discharged to the outside through the air duct 2. When performing the fresh air function, as Figure 5 and Figure 6 shown, the first air damper 4 and the second air damper 5 move, so that the fresh air module 100 is in the fresh air mode, the fan inlet 311 is communicated with the fresh air duct 112, and the fan outlet 312 is communicated with the fresh air outlet 114. At this time, the outdoor air flow is driven by the fan 3, sequentially enters the housing 1 through the air duct 2 and the fresh air duct 112, and then sequentially passes through the fan inlet 311 and the fan outlet 312 and is discharged to the indoor through the fresh air outlet 114. For the fresh air module 100 of the present disclosure embodiment, the exhaust air mode and the fresh air mode can be switched through the first air damper 4 and the second air damper 5, effectively simplifying the structure of the fresh air module 100 and reducing the cost of the fresh air module 100.

[0052] Optionally, as Figure 2 and Figure 5 shown, the air duct 2 and the exhaust air inlet 113 are arranged on different sides of the housing 1.

[0053] For example, as Figure 2 and Figure 5 shown, the air duct 2 is arranged on the left side of the housing 1, and the exhaust air inlet 113 is arranged on the lower side of the housing 1.

[0054] When the fresh air module 100 is in use, the air duct 2 needs to be connected to the outside, and the exhaust air inlet 113 needs to be connected to the inside. By arranging the air duct 2 and the exhaust air inlet 113 on different sides of the housing 1, it is convenient to set the orientations of the air duct 2 and the exhaust air inlet 113 as required, thus facilitating the installation of the fresh air module 100.

[0055] Optionally, as Figure 3 and Figure 6 shown, the air duct 2 and the fresh air outlet 114 are arranged on different sides of the housing 1.

[0056] For example, as Figure 2 and Figure 5 shown, the air duct 2 is arranged on the left side of the housing 1, and the fresh air outlet 114 is arranged on the front side of the housing 1.

[0057] When the fresh air module 100 is in use, the air duct 2 needs to be connected to the outside, and the fresh air outlet 114 needs to be connected to the inside. By arranging the air duct 2 and the fresh air outlet 114 on different sides of the housing 1, it is convenient to set the orientations of the air duct 2 and the fresh air outlet 114 as required, thus facilitating the installation of the fresh air module 100.

[0058] Optionally, as Figure 2 、 Figure 3 、 Figure 5 and Figure 6 shown, the exhaust air inlet 113 and the fresh air outlet 114 are arranged on different sides of the housing 1.

[0059] For example, as Figure 2 、 Figure 3 、 Figure 5 and Figure 6 shown, the exhaust air inlet 113 is arranged on the lower side of the housing 1, and the fresh air outlet 114 is arranged on the front side of the housing 1.

[0060] When the fresh air module 100 is in use, the exhaust air inlet 113 needs to be connected to the fan inlet 311, and the fresh air outlet 114 needs to be connected to the fan outlet 312. The fan inlet 311 and the fan outlet 312 usually face different sides of the housing 1. Therefore, arranging the exhaust air inlet 113 and the fresh air outlet 114 on different sides of the housing 1 facilitates the connection between the exhaust air inlet 113 and the fan inlet 311, and the connection between the fresh air outlet 114 and the fan outlet 312, which is beneficial to further simplify the structure of the fresh air module 100 and reduce the cost of the fresh air module 100.

[0061] Optionally, as Figures 2 to 6As shown, the blower 3 includes a blower housing 31 and an impeller 32. The impeller 32 is disposed within the blower housing 31. The blower inlet 311 and the blower outlet 312 are both provided on the blower housing 31. The blower housing 31 includes a volute 313 and a gland 314. The volute 313 encloses a blower chamber with an opening at the top. An exhaust chamber with an opening at the top is provided within the housing 1. The gland 314 is connected to the volute 313. A part of the gland 314 seals the opening of the blower chamber, and another part of the gland 314 seals the opening of the exhaust chamber to form an exhaust air duct 111.

[0062] A part of the gland 314 is used to seal the opening at the top of the volute 313, and another part of the gland 314 is used to seal the opening of the exhaust chamber, so that the gland 314 is used to seal the two chambers, which can further simplify the structure of the fresh air module 100 and reduce the cost of the fresh air module 100.

[0063] Optionally, the gland 314 is connected to the housing 1 by screws.

[0064] Optionally, as Figure 2 and Figure 5 shown, the blower 3 further includes a motor 33 for driving the impeller 32 to rotate.

[0065] In some embodiments, as Figure 3 and Figure 6 shown, the air duct 2 has a first pipe orifice 211, a second pipe orifice 221, and a third pipe orifice 231. The first pipe orifice 211 communicates with the second pipe orifice 221 and the third pipe orifice 231. The second pipe orifice 221 communicates with the exhaust air duct 111, and the third pipe orifice 231 communicates with the fresh air duct 112.

[0066] By configuring the air duct 2 to have a structure with a first pipe orifice 211, a second pipe orifice 221, and a third pipe orifice 231, it is convenient to achieve the connection of the air duct 2 with the exhaust air duct 111 and the fresh air duct 112, which is beneficial to simplifying the structure of the fresh air module 100 and further reducing the cost of the fresh air module 100.

[0067] Optionally, the air duct 2 includes a first pipe section 21, a second pipe section 22, and a third pipe section 23. The first pipe orifice 211 is provided at the first end of the first pipe section 21, the second pipe orifice 221 is provided at the first end of the second pipe section 22, the third pipe orifice 231 is provided at the first end of the third pipe section 23, and the second ends of the first pipe section 21, the second pipe section 22, and the third pipe section 23 are connected and communicate with each other.

[0068] For example, as Figure 1 shown, the air duct 2 is integrally in a Y shape.

[0069] By configuring the air duct 2 in the above structure, it is further convenient to achieve the connection of the air duct 2 with the exhaust air duct 111 and the fresh air duct 112, and further reduce the cost of the fresh air module 100.

[0070] Optionally, as Figure 3 and Figure 6 shown, the housing 1 is provided with an exhaust air outlet 115 and a fresh air inlet 116. The second pipe orifice 221 communicates with the exhaust air duct 111 through the exhaust air outlet 115, and the third pipe orifice 231 communicates with the fresh air duct 112 through the fresh air inlet 116.

[0071] For example, the second pipe orifice 221 and the exhaust air duct 111 are respectively located on opposite sides of the exhaust air outlet 115, and the second pipe orifice 221 and the exhaust air duct 111 are connected to opposite sides of the exhaust air outlet 115; the fresh air duct 112 and the third pipe orifice 231 are respectively located on opposite sides of the fresh air inlet 116, and the fresh air duct 112 and the third pipe orifice 231 are connected to opposite sides of the fresh air inlet 116.

[0072] By providing the exhaust air outlet 115 and the fresh air inlet 116 on the housing 1, it is convenient to realize the communication between the second pipe orifice 221 and the exhaust air duct 111, and the communication between the third pipe orifice 231 and the fresh air duct 112, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0073] Optionally, as Figure 3 and Figure 6 shown, the exhaust air outlet 115 and the fresh air inlet 116 are provided on the same side of the housing 1.

[0074] For example, as Figure 3 and Figure 6 shown, both the exhaust air outlet 115 and the fresh air inlet 116 are provided on the left side of the housing 1.

[0075] By providing the exhaust air outlet 115 and the fresh air inlet 116 on the same side of the housing 1, the distance between the exhaust air outlet 115 and the fresh air inlet 116 is smaller. In the case where the length of the air duct 2 is shorter, it can communicate with the exhaust air outlet 115 and the fresh air inlet 116, which is beneficial to further reduce the cost of the fresh air module 100.

[0076] Optionally, as Figure 3 and Figure 6 shown, the fresh air duct 112 has a first fresh air orifice 1121 and a second fresh air orifice 1122, and the first fresh air orifice 1121 communicates with the air duct 2. The first air damper 4 is used to make the fan inlet 311 communicate with one of the exhaust air inlet 113 and the second fresh air orifice 1122.

[0077] In the exhaust mode, the fan inlet 311 communicates with the exhaust inlet 113, enabling the indoor air flow to enter the housing 1 through the exhaust inlet 113 and finally discharged to the outside through the air duct 2; in the fresh air mode, the fan inlet 311 communicates with the second fresh air inlet 1122, enabling the fan inlet 311 to communicate with the fresh air duct 112, so that the outdoor air flow can enter the housing 1 through the fresh air duct 112 and finally discharged into the room through the fresh air outlet 114.

[0078] By setting the fresh air duct 112 and the first air damper 4 as described above, it is convenient to use the first air damper 4 to connect the fan inlet 311 with either the exhaust inlet 113 or the fresh air duct 112, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0079] Optionally, as Figure 2 shown, the exhaust inlet 113 is provided with an air inlet grille 1131.

[0080] Optionally, the first air damper 4 is switchable between a first position and a second position. As Figure 3 and Figure 6 shown, in the exhaust mode, the first air damper 4 is located at the first position, the first air damper 4 closes the second fresh air inlet 1122 and opens the exhaust inlet 113. In the fresh air mode, the first air damper 4 is located at the second position, the first air damper 4 opens the second fresh air inlet 1122 and closes the exhaust inlet 113.

[0081] By using the first air damper 4 to open one of the second fresh air inlet 1122 and the exhaust inlet 113 and close the other of the second fresh air inlet 1122 and the exhaust inlet 113, the connection between the fan inlet 311 and either the exhaust inlet 113 or the fresh air duct 112 is realized, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0082] Optionally, the first air damper 4 is rotatably connected to the housing 1.

[0083] For example, the first air damper 4 is rotationally connected to the housing 1 through a rotating shaft.

[0084] The first air damper 4 is rotatably connected to the housing 1, and by rotating the first air damper 4, the switching between the first position and the second position of the first air damper 4 can be realized, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0085] Optionally, a first motor is provided inside the housing 1, and the first motor is drivingly connected to the first air damper 4 to drive the first air damper 4 to rotate.

[0086] By setting the first motor, the first air damper 4 is driven to rotate by the first motor, so as to realize the switching of the first air damper 4 between the first position and the second position.

[0087] Optionally, as Figure 3 and Figure 6 shown, the plane where the second fresh air inlet 1122 is located intersects with the plane where the exhaust air inlet 113 is located, and at least a part of the second fresh air inlet 1122 is arranged corresponding to at least a part of the exhaust air inlet 113.

[0088] Among them, at least a part of the second fresh air inlet 1122 being arranged corresponding to at least a part of the exhaust air inlet 113 can be understood as: the second fresh air inlet 1122 as a whole corresponds to the exhaust air inlet 113; or, a part of the second fresh air inlet 1122 corresponds to a part of the exhaust air inlet 113.

[0089] By arranging the second fresh air inlet 1122 and the exhaust air inlet 113 as described above, it is convenient to control the opening and closing of the second fresh air inlet 1122 and the exhaust air inlet 113 by using the first air damper 4, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0090] Optionally, the rotation angle of the first air damper 4 is less than 90°.

[0091] That is to say, when the first air damper 4 rotates from the first position to the second position, the rotation angle of the first air damper 4 is less than 90°, and when the first air damper 4 rotates from the second position to the first position, the rotation angle of the first air damper 4 is less than 90°.

[0092] Thereby, the rotation angle of the first air damper 4 is relatively small, which is beneficial to improving the switching efficiency of the first air damper 4 between the first position and the second position, thereby improving the switching efficiency of the fresh air module 100 between the exhaust air mode and the fresh air mode, and is beneficial to further improving the user experience.

[0093] Optionally, as Figure 2 and Figure 5 shown, a first abutting portion 117 and a second abutting portion 118 are provided in the housing 1. In the first position, the first air damper 4 abuts against the first abutting portion 117. In the second position, the first air damper 4 abuts against the second abutting portion 118.

[0094] By providing the first abutting portion 117 and the second abutting portion 118 in the housing 1, the first air damper 4 can be limited, the reliability of the first air damper 4 can be improved, and thus the reliability of the fresh air module 100 can be improved.

[0095] Optionally, as Figure 2 and Figure 5 shown, the first abutting portion 117 and the second abutting portion 118 are abutting protrusions. Optionally, asFigure 2 and Figure 5 As shown, the first abutting portion 117 is provided at the second fresh air inlet 1122, and the second abutting portion 118 is provided at the exhaust air inlet 113.

[0096] For example, the second fresh air inlet 1122 has opposite first and second rim edges, and the exhaust air inlet 113 has opposite third and fourth rim edges. The first and third rim edges are adjacently arranged. The first abutting portion 117 is provided at the second rim edge, and the second abutting portion 118 is provided at the fourth rim edge. One end of the first air damper 4 is located at the first and third rim edges and is rotatably connected to the housing 1. In the first position, the other end of the first air damper 4 abuts against the first abutting portion 117, and in the second position, the other end of the first air damper 4 abuts against the second abutting portion 118.

[0097] The arrangement positions of the first abutting portion 117 and the second abutting portion 118 make the layout of the first air damper 4, the first abutting portion 117, and the second abutting portion 118 relatively compact, which is beneficial to improving the miniaturized design of the fresh air module 100.

[0098] In some embodiments, as Figure 2 and Figure 5 shown, the exhaust air duct 111 has a first exhaust air outlet 1111 and a second exhaust air outlet 1112. The first exhaust air outlet 1111 is communicated with the air duct 2. The second air damper 5 is used to communicate the fan outlet 312 with one of the second exhaust air outlet 1112 and the fresh air outlet 114.

[0099] In the exhaust air mode, the fan outlet 312 is communicated with the second exhaust air outlet 1112, so that the air flow entering the fan 3 can enter the air duct 2 through the fan outlet 312 and the second exhaust air outlet 1112, and finally be discharged to the outside through the air duct 2; in the fresh air mode, the fan outlet 312 is communicated with the fresh air outlet 114, so that the air flow entering the fan 3 can flow out through the fan outlet 312 and finally be discharged into the room through the fresh air outlet 114.

[0100] By making the above settings for the exhaust air duct 111 and the second air damper 5, it is convenient to use the second air damper 5 to communicate the fan outlet 312 with one of the second exhaust air outlet 1112 and the fresh air outlet 114, which is beneficial to further simplifying the structure of the fresh air module 100 and further reducing the cost of the fresh air module 100.

[0101] Optionally, the second air damper 5 is switchable between a third position and a fourth position. In the exhaust air mode, the second air damper 5 is located at the third position, and the second air damper 5 opens the second exhaust air outlet 1112 and closes the fresh air outlet 114. In the fresh air mode, the second air damper 5 is located at the fourth position, and the second air damper 5 closes the second exhaust air outlet 1112 and opens the fresh air outlet 114.

[0102] By using the second air damper 5 to open one of the second air discharge openings 1112 and the fresh air outlet 114 and close the other one of the second air discharge openings 1112 and the fresh air outlet 114, it is realized that the fan outlet 312 communicates with one of the second air discharge openings 1112 and the fresh air outlet 114, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0103] Optionally, the second air damper 5 is rotatably connected to the housing 1.

[0104] For example, the second air damper 5 is rotatably connected to the housing 1 through a rotating shaft.

[0105] The second air damper 5 is rotatably connected to the housing 1. By rotating the second air damper 5, the switching of the second air damper 5 between the third position and the fourth position can be realized, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0106] Optionally, a second motor is provided in the housing 1, and the second motor is drivingly connected to the second air damper 5 to drive the second air damper 5 to rotate.

[0107] By providing the second motor and using the second motor to drive the second air damper 5 to rotate, the switching of the second air damper 5 between the third position and the fourth position is realized.

[0108] Optionally, as Figure 3 and Figure 6 shown, the plane where the second air discharge opening 1112 is located intersects the plane where the fresh air outlet 114 is located, and at least a part of the second air discharge opening 1112 is arranged corresponding to at least a part of the fresh air outlet 114.

[0109] Among them, at least a part of the second air discharge opening 1112 is arranged corresponding to at least a part of the fresh air outlet 114, which can be understood as: the whole of the second air discharge opening 1112 is arranged corresponding to the fresh air outlet 114; or, a part of the second air discharge opening 1112 is arranged corresponding to a part of the fresh air outlet 114.

[0110] By arranging the second fresh air inlet 1122 and the exhaust air inlet 113 as described above, it is convenient to use the first air damper 4 to control the opening and closing of the second fresh air inlet 1122 and the exhaust air inlet 113, which is beneficial to further simplify the structure of the fresh air module 100 and further reduce the cost of the fresh air module 100.

[0111] Optionally, the rotation angle of the second air damper 5 is less than 90°.

[0112] That is to say, when the second air damper 5 rotates from the third position to the fourth position, the rotation angle of the second air damper 5 is less than 90°, and when the second air damper 5 rotates from the fourth position to the third position, the rotation angle of the second air damper 5 is less than 90°.

[0113] Thereby, the rotation angle of the second air damper 5 is relatively small, which is beneficial to improving the switching efficiency of the second air damper 5 between the third position and the fourth position, thereby improving the switching efficiency of the fresh air module 100 between the exhaust mode and the fresh air mode, and is beneficial to further improving the user experience.

[0114] Optionally, a third abutting portion 119 and a fourth abutting portion 120 are provided in the housing 1. In the third position, the second air damper 5 abuts against the third abutting portion 119. In the fourth position, the second air damper 5 abuts against the fourth abutting portion 120.

[0115] By providing the third abutting portion 119 and the fourth abutting portion 120 in the housing 1, the second air damper 5 can be limited, the reliability of the second air damper 5 can be improved, and thus the reliability of the fresh air module 100 can be improved.

[0116] Optionally, as Figure 3 and Figure 6 shown, the third abutting portion 119 and the fourth abutting portion 120 are abutting protrusions.

[0117] Optionally, as Figure 3 and Figure 6 shown, the third abutting portion 119 and the fourth abutting portion 120 are both provided at the blower outlet 312 and are located on opposite sides of the blower outlet 312.

[0118] For example, the blower outlet 312 has opposite fifth edges and sixth edges. The third abutting portion 119 is provided on the fifth edge, the fourth abutting portion 120 is provided on the sixth edge, and one end of the second air damper 5 is rotatably connected to the housing 1. In the third position, the other end of the second air damper 5 abuts against the third abutting portion 119, and in the fourth position, the other end of the second air damper 5 abuts against the fourth abutting portion 120.

[0119] The setting positions of the third abutting portion 119 and the fourth abutting portion 120 make the layout of the second air damper 5, the third abutting portion 119 and the fourth abutting portion 120 relatively compact, which is beneficial to improving the miniaturized design of the fresh air module 100.

[0120] In some embodiments, as Figure 2 , Figure 3 , Figure 5 and Figure 6 shown, the fresh air module 100 includes a filtering device 6, and the filtering device 6 is provided between the air duct 2 and the blower 3. The filtering device 6 is used to filter the air flow flowing from the air duct 2 into the housing 1.

[0121] By providing a filtering device 6, the air flow flowing into the housing 1 from the air duct 2 is filtered by the filtering device 6, which can improve the quality of the air flow entering the housing 1, thereby improving the quality of the air flow entering the room and enhancing the user experience of the fresh air module 100.

[0122] Optionally, the housing 1 is provided with a fresh air inlet 116, and the fresh air duct 112 communicates with the fresh air inlet 116. The filtering device 6 is disposed in the fresh air duct 112.

[0123] By disposing the filtering device 6 in the fresh air duct 112, when the air flow passes through the fresh air duct 112, it can be filtered by the filtering device 6, improving the quality of the air flow entering the room.

[0124] Optionally, the filtering device 6 is located at the fresh air inlet 116.

[0125] The setting position of the filtering device 6 enables the outdoor air flow to be filtered by the filtering device 6 disposed at the fresh air inlet 116 when it enters the housing 1 through the air duct 2, resulting in a relatively high quality of the air flow entering the housing 1 and enhancing the reliability of the fresh air module 100.

[0126] In some other embodiments, the filtering device 6 can also be disposed outside the housing 1 and at the pipe orifice of the air duct 2 facing the housing 1. For example, the filtering device 6 is disposed at the third pipe orifice 231 of the air duct 2.

[0127] Optionally, the housing 1 includes a bottom shell 11 and a cover plate 12. The bottom shell 11 is located in a cavity with an opening, and the cover plate 12 is detachably connected to the bottom shell 11 to block the opening of the bottom shell 11. The filtering device 6 is disposed in the cavity and is detachably connected to the bottom shell 11.

[0128] When the filtering device 6 needs to be replaced or repaired, first remove the cover plate 12 from the bottom shell 11, and then remove the filtering device 6 from the bottom shell 11. When installing the filtering device 6, first connect the filtering device 6 to the bottom shell 11, and then connect the cover plate 12 to the bottom shell 11.

[0129] By detachably connecting the cover plate 12 to the bottom shell 11 and detachably connecting the filtering device 6 to the bottom shell 11, it is convenient to replace and repair the filtering device 6.

[0130] Optionally, the cover plate 12 is connected to the bottom shell 11 by screws or snap fasteners, and the filtering device 6 is connected to the bottom shell 11 by screws or snap fasteners.

[0131] Optionally, the fresh air duct 112 has an opening facing the cover plate 12, and the opening of the fresh air duct 112 allows the filtering device 6 to pass through.

[0132] Wherein, the opening of the fresh air duct 112 can be formed by a second fresh air opening 1122.

[0133] When the filter device 6 needs to be replaced or repaired, pull the filter device 6 downward, so that the filter device 6 passes through the opening of the fresh air duct 112 and is removed from the fresh air duct 112, so that the filter device 6 can be removed from the bottom case 11. When installing the filter device 6, push the filter device 6 upward, so that the filter device 6 passes through the opening of the fresh air duct 112 and enters the fresh air duct 112, so that the filter device 6 is connected to the bottom case 11.

[0134] Optionally, as Figure 7 and Figure 8 shown, the filter device 6 includes a bracket 61 and a filter screen 62. The bracket 61 is connected to the housing 1, and the filter screen 62 is detachably connected to the bracket 61.

[0135] Wherein, the filter screen 62 and the bracket 61 can be in interference fit, and the filter screen 62 is installed in the bracket 61 and removed from the bracket 61 by deformation.

[0136] By detachably connecting the filter screen 62 to the bracket 61, it is convenient to disassemble the filter screen 62 of the filter device 6, so as to clean or replace the filter screen 62.

[0137] Optionally, the bracket 61 has an installation cavity and an installation opening. The installation opening is communicated with the installation cavity. The filter screen 62 is arranged in the installation cavity, and the installation opening is for the filter screen 62 to pass through. Wherein, the number of the installation openings can be one or more.

[0138] When disassembling the filter screen 62, the filter screen 62 passes through the installation opening by deformation, so that the filter screen 62 is taken out of the installation cavity; when installing the filter screen 62, the filter screen 62 passes through the installation opening by deformation, so that the filter screen 62 is installed in the installation cavity.

[0139] Optionally, the bracket 61 is provided with a handle for taking, placing, disassembling and assembling the filter device 6.

[0140] Optionally, the filter screen 62 is a hepa filter screen.

[0141] Optionally, as Figure 4 shown, the fan 3 includes a wind guide ring 34, and the wind guide ring 34 is detachably arranged at the fan inlet 311.

[0142] For example, the wind guide ring 34 is connected to the fan housing 31 by screws.

[0143] By arranging the wind guide ring 34 at the fan inlet 311, the air flow in the housing 1 can be guided, so that the air flow in the housing 1 enters the fan 3 through the fan inlet 311, and the air volume of the fresh air module 100 is increased.

[0144] The fresh air module 100 of the embodiments of the present disclosure has a first air door 4 installed in the housing 1 and driven by a first motor to rotate the first air door 4, so that the first air door 4 switches between a first position and a second position, enabling the fan inlet 311 to selectively communicate with the fresh air duct 112 and the exhaust inlet 113; a second air door 5 is installed in the housing 1 and driven by a second motor to rotate the second air door 5, so that the second air door 5 switches between a third position and a fourth position, enabling the fan outlet 312 to selectively communicate with the exhaust duct 111 and the fresh air outlet 114. The gland 314 is used to seal the exhaust duct 111 and the volute 313. The motor 33 is connected to the impeller 32 through a shaft.

[0145] In the exhaust mode, the first air door 4 rotates to the first position. At this time, the first air door 4 abuts against the first abutting portion 117. The first air door 4 opens the second exhaust port 1112 of the exhaust duct 111 and closes the fresh air outlet 114, so that the fan outlet 312 communicates with the exhaust duct 111 and is cut off from the fresh air outlet 114; the second air door 5 rotates to the third position. At this time, the second air door 5 abuts against the third abutting portion 119. The second air door 5 opens the exhaust inlet 113 and closes the second fresh air port 1122 of the fresh air duct 112, so that the fan inlet 311 communicates with the exhaust inlet 113 and is cut off from the fresh air duct 112. The indoor air flow is driven by the fan 3, enters the fan 3 through the exhaust inlet 113, and then is discharged to the outside through the exhaust duct 111 and the air duct 2.

[0146] In the fresh air mode, the first air door 4 rotates to the second position. At this time, the first air door 4 abuts against the second abutting portion 118. The first air door 4 closes the second exhaust port 1112 of the exhaust duct 111 and opens the fresh air outlet 114, so that the fan outlet 312 is cut off from the exhaust duct 111 and communicates with the fresh air outlet 114; the second air door 5 rotates to the fourth position. At this time, the second air door 5 abuts against the fourth abutting portion 120. The second air door 5 closes the exhaust inlet 113 and opens the second fresh air port 1122 of the fresh air duct 112, so that the fan inlet 311 is cut off from the exhaust inlet 113 and communicates with the fresh air duct 112. The indoor air flow is driven by the fan 3, enters the fan 3 through the air duct 2 and the fresh air duct 112, and then is discharged to the outside through the fresh air outlet 114.

[0147] The fresh air module 100 of the embodiments of the present disclosure is applicable to the fresh air module of the fresh air and air duct machine integrated unit. It can realize the switching between the fresh air mode and the exhaust mode through the combined operation of two air doors. Since only two air doors move during the switching process between the fresh air mode and the exhaust mode, the operation reliability is high; by designing the air ducts in the housing 1 and the air duct 2, the number of moving mechanisms used is greatly reduced; the exhaust mode is added, expanding the air treatment function of the fresh air module 100.

[0148] The air conditioning device of the embodiment of the present disclosure includes the fresh air module 100 described in any of the above embodiments.

[0149] The air conditioning equipment may be other equipment such as a duct machine having a fresh air module 100 .

[0150] When installing the fresh air module 100, the cover 12 can be installed downward, that is, the cover 12 is located on the lower side of the bottom shell 11 during installation. On the one hand, it is convenient to disassemble the cover 12 so as to repair or replace the parts in the shell 1; on the other hand, the exhaust inlet 113 is facing downward so that the indoor air flow can enter the fresh air module 100 through the exhaust inlet 113.

[0151] In the description of the present disclosure, 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0152] In addition, 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 the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0153] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0154] In this disclosure, unless otherwise clearly specified and defined, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "below" and "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0155] In this disclosure, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0156] Although the embodiments of this disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this disclosure.

Claims

1. A fresh air module, characterized in that, Comprising: A housing, the housing is provided with an exhaust air inlet and a fresh air outlet, and an exhaust air duct and a fresh air duct are arranged inside the housing; An air duct, the air duct is connected to the housing and selectively communicates with the fresh air duct and the exhaust air duct; A fan, the fan is arranged inside the housing, and the fan has a fan inlet and a fan outlet; A first air damper and a second air damper, the first air damper and the second air damper are movably connected to the housing to switch between an exhaust air mode and a fresh air mode, the first air damper is used to connect the fan inlet to one of the exhaust air inlet and the fresh air duct, and the second air damper is used to connect the fan outlet to one of the exhaust air duct and the fresh air outlet; In the exhaust air mode, the fan inlet is connected to the exhaust air inlet, and the fan outlet is connected to the exhaust air duct; In the fresh air mode, the fan inlet is connected to the fresh air duct, and the fan outlet is connected to the fresh air outlet.

2. The fresh air module according to claim 1, characterized in that, The air duct has a first pipe orifice, a second pipe orifice and a third pipe orifice, the first pipe orifice communicates with the second pipe orifice and the third pipe orifice, the second pipe orifice is connected to the exhaust air duct, and the third pipe orifice is connected to the fresh air duct.

3. The fresh air module according to claim 2, wherein The air duct includes a first pipe section, a second pipe section and a third pipe section, the first pipe orifice is arranged at the first end of the first pipe section, the second pipe orifice is arranged at the first end of the second pipe section, the third pipe orifice is arranged at the first end of the third pipe section, and the second ends of the first pipe section, the second pipe section and the third pipe section are connected and communicated.

4. The fresh air module according to claim 2, wherein The housing is provided with an exhaust air outlet and a fresh air inlet, the second pipe orifice is connected to the exhaust air duct through the exhaust air outlet, and the third pipe orifice is connected to the fresh air duct through the fresh air inlet.

5. The fresh air module according to claim 4, wherein The exhaust air outlet and the fresh air inlet are arranged on the same side of the housing.

6. The fresh air module according to claim 1, characterized in that The fresh air duct has a first fresh air orifice and a second fresh air orifice, the first fresh air orifice is connected to the air duct, and the first air damper is used to connect the fan inlet to one of the exhaust air inlet and the second fresh air orifice.

7. The fresh air module according to claim 6, wherein, The first air damper is switchable between a first position and a second position; In the exhaust air mode, the first air damper is located at the first position, the first air damper closes the second fresh air orifice and opens the exhaust air inlet, In the fresh air mode, the first air damper is located at the second position, the first air damper opens the second fresh air orifice and closes the exhaust air inlet.

8. The fresh air module according to claim 7, wherein A first abutting portion and a second abutting portion are arranged inside the housing; In the first position, the first air damper abuts against the first abutting portion, In the second position, the first air damper abuts against the second abutting portion.

9. The fresh air module according to claim 8, wherein, The first abutting portion is arranged at the second fresh air orifice, and the second abutting portion is arranged at the exhaust air inlet.

10. The fresh air module according to claim 6, characterized in that, The plane where the second fresh air orifice is located intersects with the plane where the exhaust air inlet is located, and at least a part of the second fresh air orifice corresponds to at least a part of the exhaust air inlet.

11. The fresh air module according to claim 1, wherein, The first air damper is rotatably connected to the housing.

12. The fresh air module according to claim 1, characterized in that, The exhaust air duct has a first air outlet and a second air outlet. The first air outlet is communicated with the air duct, and the second air damper is used to communicate the fan outlet with one of the second air outlet and the fresh air outlet.

13. The fresh air module according to claim 12, characterized in that, The second air damper is switchable between a third position and a fourth position; In the exhaust air mode, the second air damper is located at the third position, the second air damper opens the second air outlet and closes the fresh air outlet, In the fresh air mode, the second air damper is located at the fourth position, the second air damper closes the second air outlet and opens the fresh air outlet.

14. The fresh air module according to claim 13, characterized in that, A third abutting portion and a fourth abutting portion are provided in the housing; In the third position, the second air damper abuts against the third abutting portion, In the fourth position, the second air damper abuts against the fourth abutting portion.

15. The fresh air module according to claim 14, wherein Both the third abutting portion and the fourth abutting portion are provided at the fan outlet and are located on opposite sides of the fan outlet.

16. The fresh air module according to claim 12, wherein The plane where the second air outlet is located intersects with the plane where the fresh air outlet is located, and at least a part of the second air outlet is arranged corresponding to at least a part of the fresh air outlet.

17. The fresh air module according to claim 1, characterized in that, The second air damper is rotatably connected to the housing.

18. The fresh air module according to any one of claims 1-17, characterized in that, The fresh air module includes a filtering device, the filtering device is arranged between the air duct and the fan, and the filtering device is used to filter the air flow flowing from the air duct into the housing.

19. The fresh air module according to claim 18, characterized in that, The housing is provided with a fresh air inlet, the fresh air duct is communicated with the fresh air inlet, and the filtering device is arranged in the fresh air duct.

20. The fresh air module according to claim 19, wherein The filtering device is located at the fresh air inlet.

21. The fresh air module according to claim 19, characterized in that, The housing includes a bottom shell and a cover plate. The bottom shell encloses a cavity with an opening. The cover plate is detachably connected to the bottom shell and seals the opening of the bottom shell. The filtering device is arranged in the cavity and is detachably connected to the bottom shell.

22. The fresh air module according to claim 21, wherein, The fresh air duct has an opening facing the cover plate, and the opening of the fresh air duct allows the filtering device to pass through.

23. The fresh air module according to claim 18, characterized in that, The filtering device includes a bracket and a filter screen. The bracket is connected to the housing, and the filter screen is detachably connected to the bracket.

24. The fresh air module according to any one of claims 1-17, characterized in that, The fan includes a wind guiding ring, and the wind guiding ring is detachably arranged at the fan inlet.

25. The fresh air module according to any one of claims 1-17, characterized in that, The air duct and the exhaust air inlet are arranged on different sides of the housing; and / or, The air duct and the fresh air outlet are arranged on different sides of the housing; and / or, The exhaust air inlet and the fresh air outlet are arranged on different sides of the housing.

26. The fresh air module according to any one of claims 1-17, characterized in that, The fan includes a fan housing and an impeller. The impeller is arranged in the fan housing, and both the fan inlet and the fan outlet are arranged on the fan housing; The fan housing includes a volute and a gland. The volute encloses a fan cavity with an opening at the top. An exhaust air cavity with an opening at the top is provided in the housing. The gland is connected to the volute. A part of the gland seals the opening of the fan cavity, and another part of the gland seals the opening of the exhaust air cavity to form the exhaust air duct.

27. An air conditioning device, characterized in that, Including the fresh air module according to any one of claims 1-26.

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