Fan assembly, fresh air module with same and air conditioner

Abstract

The invention discloses a fan assembly, a fresh air module with the fan assembly and an air conditioner, the fan assembly comprises a shell, the shell defines a containing cavity, an air inlet channel and an air outlet channel, and the containing cavity communicates between the air inlet channel and the air outlet channel; the wind wheel is rotatably arranged in the containing cavity, and the motor is connected with the wind wheel to drive the wind wheel to rotate; and in the flowing direction of air, at least one part of the air outlet channel is a bent air outlet section. According to the fan assembly disclosed by the embodiment of the invention, the length of the air outlet channel is prolonged, so that the transmission time of the sound in the air outlet channel is prolonged, the energy in the sound is consumed, and the noise transmitted to a specified area can be reduced.

Description

Technical Field

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

[0002] The fan in the related art is used to transport air to a designated area. When the fan is in use, the fan will generate noise, and excessive noise will affect the user experience. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a fan assembly, which extends the length of the air outlet channel to extend the time for sound to be transmitted in the air outlet channel, so as to consume the energy in the sound, thereby reducing the noise transmitted to the designated area.

[0004] The present invention also provides a fresh air module and an air conditioner having the fan assembly.

[0005] According to an embodiment of the first aspect of the present invention, the fan assembly includes: a shell, the shell defines a accommodating chamber, an air inlet channel and an air outlet channel, the accommodating chamber is connected between the air inlet channel and the air outlet channel; a wind wheel and a motor, the wind wheel is rotatably arranged in the accommodating chamber, and the motor is connected to the wind wheel to drive the wind wheel to rotate; wherein, in the flow direction of air, at least a part of the air outlet channel is a bent air outlet section.

[0006] The fan assembly according to the embodiment of the present invention prolongs the time for sound to be transmitted in the air outlet channel by extending the length of the air outlet channel, so as to consume the energy in the sound and thereby reduce the noise transmitted to the designated area.

[0007] In addition, the fan assembly according to the above embodiment of the present invention may also have the following additional technical features:

[0008] According to some embodiments of the present invention, the wall portion defining the air outlet channel includes a first side wall and a second side wall that are oppositely disposed, and at least one of the first side wall and the second side wall includes a bending section.

[0009] According to some optional embodiments of the present invention, the first side wall includes a first bending segment, the second side wall includes a second bending segment, the first bending segment and the second bending segment are arranged opposite to each other and have the same bending direction.

[0010] According to some optional embodiments of the present invention, the first side wall and the second side wall are arranged opposite to each other in the axial direction of the wind wheel.

[0011] According to some optional embodiments of the present invention, the shell further defines a first sound absorption chamber and a second sound absorption chamber, the first sound absorption chamber and the second sound absorption chamber are located on opposite sides of the air outlet channel, the first sound absorption chamber and the second sound absorption chamber are both connected to the air outlet channel, and sound absorbing components are provided in the first sound absorption chamber and the second sound absorption chamber.

[0012] According to some specific embodiments of the present invention, the first side wall separates the air outlet channel and the first sound absorption cavity and the first side wall is provided with a plurality of first air holes, the first air holes connecting the first sound absorption cavity and the air outlet channel; the second side wall separates the air outlet channel and the second sound absorption cavity and the second side wall is provided with a plurality of second air holes, the second air holes connecting the second sound absorption cavity and the air outlet channel.

[0013] According to some specific embodiments of the present invention, the shell includes: a first volute and a second volute, the first volute and the second volute are arranged relative to each other to define the accommodating cavity and the air outlet channel; a first soundproof cover, the first soundproof cover is arranged on the outside of the first volute and defines the first sound absorption cavity between the first volute and the first volute; a second soundproof cover, the second soundproof cover is arranged on the outside of the second volute and defines the second sound absorption cavity between the second volute and the second volute.

[0014] In some embodiments, the first volute and the first sound insulation cover, the second volute and the second sound insulation cover, and the first volute and the second volute are connected by snap-fitting or fasteners, respectively.

[0015] According to some embodiments of the present invention, the air outlet channel includes a first air outlet section. In the flow direction of the air, the first air outlet section is located downstream of the bent air outlet section and has a gradually increasing cross-section.

[0016] According to some optional embodiments of the present invention, the air outlet channel also includes a second air outlet section. In the flow direction of the air, the second air outlet section is located upstream of the bent air outlet section and forms a straight structure. The two ends of the bent air outlet section are respectively connected to the first air outlet section and the second air outlet section by an arc transition.

[0017] According to some embodiments of the present invention, the accommodating cavity and the air outlet channel are arranged in a first direction, the shell has a third side wall and a fourth side wall arranged relatively to each other in a second direction, and the first direction, the second direction and the axial direction of the wind wheel are perpendicular to each other; a partition is provided in the shell, and the partition extends from the third side wall toward the fourth side wall, the outlet of the air outlet channel is arranged on the third side wall, and the inlet of the air outlet channel is located between the partition and the fourth side wall.

[0018] According to a second aspect of the present invention, a fresh air module of an air conditioner is provided, and the fresh air module of the air conditioner comprises: a fan assembly according to the embodiment of the first aspect of the present invention, the inlet of the air inlet channel being a fresh air inlet; and a filter element, wherein the filter element is arranged in the air inlet channel.

[0019] The fresh air module according to the embodiment of the present invention, by utilizing the fan assembly described in the embodiment of the first aspect of the present invention, extends the length of the air outlet channel, thereby facilitating prolonging the time for sound to be transmitted in the air outlet channel to consume the energy in the sound, thereby being able to reduce the noise transmitted to the designated area.

[0020] According to a third aspect of the present invention, an air conditioner is provided. The air conditioner includes the fan assembly described in the first aspect of the present invention; or includes the fresh air module of the air conditioner described in the second aspect of the present invention.

[0021] The air conditioner according to the embodiment of the present invention, by utilizing the fan assembly described in the embodiment of the first aspect of the present invention, extends the length of the air outlet channel, thereby facilitating prolonging the time for sound to be transmitted in the air outlet channel to consume the energy in the sound, thereby being able to reduce the noise transmitted to the designated area.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a structural schematic diagram of a fresh air module according to an embodiment of the present invention.

[0025] Figure 2 is a structural schematic diagram of a fresh air module according to an embodiment of the present invention.

[0026] Figure 3 is a top view of a fresh air module according to an embodiment of the present invention.

[0027] Figure 4 is a cross-sectional view of a fresh air module according to an embodiment of the present invention.

[0028] Figure 5 4 is a front view of a fresh air module according to an embodiment of the present invention.

[0029] Figure 6 is a cross-sectional view of a fresh air module according to an embodiment of the present invention.

[0030] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0031] Figure 8 is a cross-sectional view of a fresh air module according to an embodiment of the present invention.

[0032] Fig. 9 is an exploded view of a fresh air module according to an embodiment of the present invention.

[0033] Fig.10 is a schematic structural diagram of a first volute and a second volute according to an embodiment of the present invention.

[0034] Fig.11 is a schematic structural diagram of a first volute and a second volute according to an embodiment of the present invention.

[0035] Fig.12 is a schematic structural diagram of a first volute according to an embodiment of the present invention.

[0036] Fig.13 is a schematic structural diagram of a first volute according to an embodiment of the present invention.

[0037] Fig.14 is a schematic structural diagram of a second volute according to an embodiment of the present invention.

[0038] Fig.15 is a schematic structural diagram of a second volute according to an embodiment of the present invention.

[0039] Fig.16 yes Fig.15 Cross-sectional view at the middle BB.

[0040] Fig.17 is a schematic structural diagram of a second volute according to an embodiment of the present invention.

[0041] Reference numerals: housing 10,

[0042] The first side wall 111, the first bending section 1111, the first air hole 1112, the second side wall 112, the second bending section 1121, the second air hole 1122, the third side wall 113, the fourth side wall 114,

[0043] The first volute 116, the first limiting step 1161, the second clamping protrusion 1162, the first clamping arm 1163, the step portion 1164,

[0044] The second volute 117, the second limiting step 1171, the first clamping protrusion 1172, the step matching portion 1174,

[0045] The partition 12, the accommodating chamber 13, the air inlet channel 14, the first wall surface 143, the second wall surface 144, the air outlet channel 15, the bent air outlet section 151, the first air outlet section 152, the second air outlet section 153,

[0046] The first sound absorbing chamber 16, the second sound absorbing chamber 17,

[0047] first soundproof cover 181, first matching step 1811, second clamping arm 1812, second soundproof cover 182, second matching step 1821,

[0048] Air inlet housing 19, wind wheel 21, motor 22,

[0049] Guide plate 41, sound absorbing member 50,

[0050] Motor part 61, valve 62,

[0051] Fresh air module 8, first fresh air inlet 811, second fresh air inlet 812, filter element 82. DETAILED DESCRIPTION

[0052] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] The fan assembly according to the embodiment of the present invention is described below with reference to the accompanying drawings.

[0054] like Figure 1 , Figure 4 , Figure 8 As shown, the fan assembly according to the embodiment of the present invention includes a housing 10 , a wind wheel 21 and a motor 22 .

[0055] The shell 10 defines a accommodating chamber 13, an air inlet channel 14 and an air outlet channel 15. The accommodating chamber 13 is connected between the air inlet channel 14 and the air outlet channel 15. The wind wheel 21 is rotatably disposed in the accommodating chamber 13. The motor 22 is connected to the wind wheel 21 to drive the wind wheel 21 to rotate. When the wind wheel 21 rotates, the wind wheel 21 can drive the air to enter the accommodating chamber 13 along the air inlet channel 14, and drive the air in the accommodating chamber 13 to enter the air outlet channel 15. The air in the accommodating chamber 13 flows to the designated area along the air outlet channel 15 to guide the air to the designated area.

[0056] In the air flow direction, at least a portion of the air outlet channel 15 is a bent air outlet section 151 , which can extend the length of the air outlet channel 15 and extend the air flow time in the air outlet channel 15 .

[0057] Specifically, the noise generated at the wind wheel 21 in the fan assembly is relatively large. Since the outlet of the air outlet channel 15 is connected to the designated area, the noise generated at the wind wheel 21 needs to pass through the air outlet channel 15 and be transmitted from the outlet of the air outlet channel 15 to the designated area. By increasing the length of the air outlet channel 15, it is convenient to extend the time that the sound passes through the air outlet channel 15, thereby consuming the energy in the sound to reduce the noise transmitted by the wind wheel 21 to the designated area.

[0058] The fan assembly according to the embodiment of the present invention prolongs the time for sound to be transmitted in the air outlet channel 15 by extending the length of the air outlet channel 15, so as to consume the energy in the sound and thereby reduce the noise transmitted to the designated area.

[0059] The fan assembly according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0060] like Figure 1 , Figure 4 , Figure 8 As shown, the fan assembly according to the embodiment of the present invention includes a housing 10 , a wind wheel 21 and a motor 22 .

[0061] In some embodiments of the present invention, Figure 4 As shown, the wall portion defining the air outlet channel 15 includes a first side wall 111 and a second side wall 112 that are relatively arranged, and at least one of the first side wall 111 and the second side wall 112 includes a bending section. The bending section is provided to extend the length of the air outlet channel 15, thereby extending the path of air flowing in the air outlet channel 15, and extending the time that sound passes through the air outlet channel 15, thereby consuming the energy in the sound to reduce the noise transmitted by the wind wheel 21 to the designated area.

[0062] In some optional embodiments of the present invention, the first side wall 111 includes a first bending section 1111, and the second side wall 112 includes a second bending section 1121. The first bending section 1111 and the second bending section 1121 are arranged relative to each other and have the same bending direction. Under the premise that the size of the air outlet channel 15 does not suddenly increase or decrease, the first bending section 1111 and the second bending section 1121 are utilized to extend the length of the air outlet channel 15, so as to extend the time that the sound passes through the air outlet channel 15, thereby consuming the energy in the sound to reduce the noise transmitted by the wind wheel 21 to the designated area.

[0063] Specifically, the first bending section 1111 and the second bending section 1121 are arranged relative to each other and have the same bending direction, so as to avoid a sudden increase or decrease in the size of the air outlet channel 15, avoid turbulence in the flow of air, avoid the formation of vortices in the air outlet channel 15, and affect the normal flow of air in the air outlet channel 15.

[0064] In some optional embodiments of the present invention, the first side wall 111 and the second side wall 112 are arranged relative to each other in the axial direction of the wind wheel 21, and the air outlet channel 15 is bent along the axial direction of the wind wheel 21, thereby extending the length of the air outlet channel 15, extending the path of air flowing in the air outlet channel 15, and extending the time for sound to pass through the air outlet channel 15, thereby consuming the energy in the sound to reduce the noise transmitted by the wind wheel 21 to the designated area.

[0065] like Figure 4 As shown, in the present embodiment, the axial direction of the wind wheel 21 extends in the left-right direction, the first side wall 111 is the left side wall of the air outlet channel 15, and the second side wall 112 is the right side wall of the air outlet channel 15. The first side wall 111 and the second side wall 112 are both bent to the right to form a bent air outlet section 151, thereby extending the length of the air outlet channel 15, extending the path of air flowing in the air outlet channel 15, and extending the time that sound passes through the air outlet channel 15, thereby consuming the energy in the sound to reduce the noise transmitted to the designated area by the wind wheel 21.

[0066] In some optional embodiments of the present invention, Figure 6 , Fig. 9 As shown, the shell 10 further defines a first sound absorbing chamber 16 and a second sound absorbing chamber 17, which are located on opposite sides of the air outlet channel 15, and the first sound absorbing chamber 16 and the second sound absorbing chamber 17 are both connected to the air outlet channel 15, and sound absorbing members 50 are provided in the first sound absorbing chamber 16 and the second sound absorbing chamber 17. The vibration in the air outlet channel 15 can enter the first sound absorbing chamber 16 and the second sound absorbing chamber 17, and the sound absorbing members 50 in the first sound absorbing chamber 16 and the second sound absorbing chamber 17 can buffer the vibration in the air, thereby absorbing the sound in the air outlet channel 15, performing noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15, and reducing the noise transmitted to the designated area.

[0067] Among them, at least a part of the air outlet channel 15 is a bent air outlet section 151, and the length of the air outlet channel 15 is extended. When the sound absorbing member 50 is arranged in the first sound absorbing cavity 16 and the second sound absorbing cavity 17, it is convenient to increase the contact area between the sound absorbing member 50 and the first side wall 111, and increase the contact area between the sound absorbing member 50 and the second side wall 112, so as to increase the sound absorbing member 50's ability to absorb sound in the air outlet channel 15, so as to enable the sound absorbing member 50 to fully absorb the sound in the air outlet channel 15, so as to fully perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15, and reducing the noise transmitted to the designated area.

[0068] In addition, the sound absorbing member 50 is disposed in the first sound absorbing cavity 16 and the second sound absorbing cavity 17, and the position of the sound absorbing member 50 is limited by the first sound absorbing cavity 16 and the second sound absorbing cavity 17, so as to prevent the sound absorbing member 50 from entering the air outlet channel 15 and affecting the flow speed and flow direction of the air in the air outlet channel 15, thereby facilitating the stable flow of air in the air outlet channel 15.

[0069] In some specific embodiments of the present invention, Figure 6 , Fig.13 As shown, the first side wall 111 separates the air outlet channel 15 and the first sound absorbing chamber 16, and the first side wall 111 is provided with a plurality of first air holes 1112, the first air holes 1112 connect the first sound absorbing chamber 16 with the air outlet channel 15, and the vibration in the air outlet channel 15 can enter the first sound absorbing chamber 16 through the first air holes 1112, so that the sound absorbing member 50 in the first sound absorbing chamber 16 can buffer the vibration, absorb the sound in the air outlet channel 15, perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15, and reducing the noise transmitted to the designated area.

[0070] The first side wall 112 is used to separate the first sound absorbing cavity 16 and the air outlet channel 15. When the sound absorbing member 50 is disposed in the first sound absorbing cavity 16, the first side wall 112 is provided with a first bending section 1111, so that the contact area between the sound absorbing member 50 and the first side wall 112 is increased, so that the sound absorbing member 50 can fully perform noise reduction treatment on the air in the air outlet channel 15.

[0071] The second side wall 112 separates the air outlet channel 15 from the second sound absorbing chamber 17 and is provided with a plurality of second air holes 1122 on the second side wall 112. The second air holes 1122 connect the second sound absorbing chamber 17 with the air outlet channel 15. The vibration in the air outlet channel 15 can enter the second sound absorbing chamber 17 through the second air holes 1122, so that the sound absorbing member 50 in the second sound absorbing chamber 17 can buffer the vibration, absorb the sound in the air outlet channel 15, perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0072] The second side wall 112 is used to separate the second sound absorbing chamber 17 and the air outlet channel 15. When the sound absorbing member 50 is disposed in the second sound absorbing chamber 17, the second side wall 112 has a second bent section 1121, so that the contact area between the sound absorbing member 50 and the second side wall 112 is increased, so that the sound absorbing member 50 can fully reduce the noise of the air in the air outlet channel 15.

[0073] In some embodiments, Figure 4As shown, the first side wall 111 and the second side wall 112 are the left and right walls of the air outlet channel 15, the first sound absorbing chamber 16 is arranged on the left side of the air outlet channel 15, and the second sound absorbing chamber 17 is arranged on the right side of the air outlet channel 15. The first side wall 111 is formed as a first grille structure, and a plurality of first air holes 1112 are defined on the first grille structure. The air outlet channel 15 is connected with the first sound absorbing chamber 16 through the first air holes 1112. The vibration in the air outlet channel 15 can enter the first sound absorbing chamber 16 through the first air holes 1112, so that the sound absorbing member 50 in the first sound absorbing chamber 16 can buffer the vibration, absorb the sound in the air outlet channel 15, and perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0074] The second side wall 112 is formed as a second grille structure, and a plurality of second air holes 1122 are defined on the second grille structure. The air outlet channel 15 is connected with the second sound absorbing chamber 17 through the second air holes 1122. The vibration in the air outlet channel 15 can enter the second sound absorbing chamber 17 through the second air holes 1122, so that the sound absorbing member 50 in the second sound absorbing chamber 17 can buffer the vibration, absorb the sound in the air outlet channel 15, perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0075] In some specific embodiments of the present invention, Figure 1 , Fig.11 , Fig.12 As shown, the shell 10 includes a first volute 116 and a second volute 117, and the first volute 116 and the second volute 117 are arranged relative to each other to define a accommodating chamber 13 and an air outlet channel 15. The shell 10 also includes a first sound insulation cover 181 and a second sound insulation cover 182. The first sound insulation cover 181 is arranged on the outside of the first volute 116 and defines a first sound absorption chamber 16 between the first volute 116, and the second sound insulation cover 182 is arranged on the outside of the second volute 117 and defines a second sound absorption chamber 17 between the second volute 117. By providing the first sound absorption chamber 16 and the second sound absorption chamber 17, the air outlet channel 15 and the external environment can be further isolated, so that the noise in the air outlet channel 15 is not easily transmitted to the external environment, thereby facilitating the reduction of the noise transmitted by the fan assembly.

[0076] Among them, the sound in the air outlet channel 15 can enter the first sound absorbing cavity 16 and the second sound absorbing cavity 17. The sound absorbing member 50 in the first sound absorbing cavity 16 and the second sound absorbing cavity 17 can buffer the vibration in the air, thereby absorbing the energy in the sound, and performing noise reduction processing on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0077] like Figure 6 , Fig. 9 , Fig.11 , Fig.12 As shown, in the present embodiment, the first sound absorbing chamber 16 is arranged on the left side of the air outlet channel 15, the first side wall 111 is the left side wall of the first volute 116, the first side wall 111 is formed as a first grille structure, a plurality of first air holes 1112 are defined on the first grille structure, the air outlet channel 15 is connected with the first sound absorbing chamber 16 through the first air holes 1112, the vibration in the air outlet channel 15 can enter the first sound absorbing chamber 16 through the first air holes 1112, so that the sound absorbing member 50 in the first sound absorbing chamber 16 can buffer the vibration, absorb the sound in the air outlet channel 15, perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0078] The second sound absorbing chamber 17 is arranged on the right side of the air outlet channel 15, the second side wall 112 is the right side of the second volute 117, the second side wall 112 is a second grille structure, a plurality of second air holes 1122 are defined on the second grille structure, the air outlet channel 15 is communicated with the second sound absorbing chamber 17 through the second air holes 1122, the vibration in the air outlet channel 15 can enter the second sound absorbing chamber 17 through the second air holes 1122, so that the sound absorbing member 50 in the second sound absorbing chamber 17 can buffer the vibration, absorb the sound in the air outlet channel 15, perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0079] In some embodiments, the first volute 116 and the first sound insulation cover 181 are connected by snap-fitting or fasteners to fix the first volute 116 and the first sound insulation cover 181 together, so that a first sound insulation cavity can be defined between the first volute 116 and the first sound insulation cover 181.

[0080] In some examples, such as Figure 2 , Figure 3 As shown, the first volute 116 and the first sound insulation cover 181 are connected by a snap-fitting manner, and a plurality of second snap-fitting arms 1812 are provided on the circumference of the right side of the first sound insulation cover 181, and the second snap-fitting arms 1812 define a second snap-fitting groove, and a plurality of second snap-fitting protrusions 1162 are provided on the circumference of the left side of the first volute 116. When it is necessary to install the first sound insulation cover 181 and the first volute 116 together, the relative positions of the first sound insulation cover 181 and the first volute 116 can be determined according to the positions of the second snap-fitting protrusions 1162 and the second snap-fitting arms 1812, and then the first sound insulation cover 181 and the first volute 116 are translated to move the two in a direction approaching each other, and when the second snap-fitting protrusions 1162 are snap-fitted with the second snap-fitting groove, the first sound insulation cover 181 and the first volute 116 are installed together.

[0081] When it is necessary to separate the first sound insulation cover 181 and the first volute 116, the second clamping arm 1812 can be operated first to disengage the second clamping protrusion 1162 from the second clamping groove, and then the first sound insulation cover 181 and the first volute 116 can be translated to move them away from each other, thereby achieving the separation of the first sound insulation cover 181 and the first volute 116.

[0082] In other embodiments, the first volute 116 and the first sound insulation cover 181 are connected by fasteners, a first mounting lug is provided on the left side of the first volute 116, and a second mounting lug is provided on the first sound insulation cover 181, and fasteners are passed through the first mounting lug and the second mounting lug to fix the first sound insulation cover 181 and the first volute 116 together.

[0083] In some embodiments, the second volute 117 and the second sound insulation cover 182 are connected by snap-fitting or fasteners to fix the second volute 117 and the second sound insulation cover 182 together, so that a second sound insulation cavity can be defined between the second volute 117 and the second sound insulation cover 182.

[0084] In some examples, the second volute 117 and the second sound insulation cover 182 are connected by a snap-fitting manner, and a plurality of third snap-fitting arms are provided on the circumference of the right side of the second volute 117, and the third snap-fitting arms define a third snap-fitting groove. A plurality of third snap-fitting protrusions are provided on the circumference of the left side of the second sound insulation cover 182. The relative positions of the second sound insulation cover 182 and the second volute 117 can be determined according to the positions of the third snap-fitting protrusions and the third snap-fitting arms, and then the second sound insulation cover 182 and the second volute 117 are translated to move the two in a direction approaching each other. When the third snap-fitting protrusions are snap-fitted with the third snap-fitting grooves, the second sound insulation cover 182 and the second volute 117 are installed together.

[0085] When it is necessary to separate the second sound insulation cover 182 and the second volute 117, the third clamping arm can be operated first to disengage the third clamping protrusion from the third clamping groove, and then the second sound insulation cover 182 and the second volute 117 can be translated to move them away from each other, thereby achieving the separation of the second sound insulation cover 182 and the second volute 117.

[0086] In other examples, the second volute 117 and the second sound insulation cover 182 are connected by fasteners, a first mounting lug is provided on the right side of the second volute 117, and a second mounting lug is provided on the second sound insulation cover 182, and fasteners are passed through the first mounting lug and the second mounting lug to fix the second sound insulation cover 182 and the second volute 117 together.

[0087] In some embodiments, the first volute 116 and the second volute 117 are connected by snap-fitting or fasteners to fix the first volute 116 and the second volute 117 together, so that the first volute 116 and the second volute 117 can define a accommodating chamber 13 and an air outlet channel 15 between them.

[0088] In some examples, such as Figure 2 , Figure 3 As shown, the first volute 116 and the second volute 117 are connected by a snap-fitting manner, and a plurality of first snap-fitting arms 1163 are provided on the circumference of the right side of the first volute 116, and the first snap-fitting arms 1163 define a first snap-fitting groove, and a plurality of first snap-fitting protrusions 1172 are provided on the circumference of the left side of the second volute 117. When it is necessary to install the first volute 116 and the second volute 117 together, the relative positions of the first volute 116 and the second volute 117 can be determined according to the positions of the first snap-fitting protrusions 1172 and the first snap-fitting arms 1163, and then the first volute 116 and the second volute 117 are translated so that the two move in a direction approaching each other, and when the first snap-fitting protrusions 1172 are snap-fitted with the first snap-fitting groove, the first volute 116 and the second volute 117 are installed together.

[0089] When it is necessary to separate the first volute 116 and the second volute 117, the first clamping arm 1163 can be operated first to disengage the first clamping protrusion 1172 from the first clamping groove, and then the first volute 116 and the second volute 117 are translated to move them away from each other, thereby achieving the separation of the first volute 116 and the second volute 117.

[0090] In other examples, the first volute 116 and the second volute 117 are connected by fasteners, a first lug is provided on the right side of the first volute 116, and a second lug is provided on the left side of the second volute 117, and the fastener can pass through the first lug and the second lug to fix the first volute 116 and the second volute 117 together.

[0091] In some specific embodiments of the present invention, Figure 6 , Figure 7 As shown, one of the first sound insulation cover 181 and the first volute 116 has a first limiting step 1161 surrounding the first sound absorption chamber 16, and the other of the first sound insulation cover 181 and the first volute 116 has a first matching step 1811, and the first matching step 1811 matches with the first limiting step 1161 to confirm the relative positions of the first sound insulation cover 181 and the first volute 116 through the first limiting step 1161 and the first matching step 1811, so that the first sound insulation cover 181 and the first volute 116 can be quickly assembled together.

[0092] In some embodiments, the first sound insulation cover 181 is arranged on the left side of the first volute 116, and the first sound insulation cover 181 and the first volute 116 define a first sound absorption chamber 16. The upper end and the lower end of the left side of the first volute 116 are both provided with a first limiting step 1161, and the upper end and the lower end of the right side of the first sound insulation cover 181 are both provided with a first matching step 1811. When the first volute 116 and the first sound insulation cover 181 are installed together, the first matching step 1811 is stopped and matched with the first limiting step 1161 to limit the position of the first sound insulation cover 181 relative to the first volute 116 in the left and right directions and the up and down directions, so as to determine the relative position of the first volute 116 and the first sound insulation cover 181, so as to quickly and accurately install the first volute 116 and the first sound insulation cover 181 together.

[0093] In some specific embodiments of the present invention, Figure 6 , Figure 7 As shown, one of the second sound insulation cover 182 and the second volute 117 has a second limiting step 1171 surrounding the second sound absorption chamber 17, and the other of the second sound insulation cover 182 and the second volute 117 has a second matching step 1821, and the second matching step 1821 matches with the second limiting step 1171 to confirm the relative position of the second sound insulation cover 182 and the second volute 117 through the second limiting step 1171 and the second matching step 1821, so that the second sound insulation cover 182 and the second volute 117 can be quickly assembled together.

[0094] In some embodiments, the second sound insulation cover 182 is arranged on the right side of the second volute 117, and the second sound insulation cover 182 and the second volute 117 define a second sound absorption chamber 17. The upper end and the lower end of the right side of the second volute 117 are both provided with a second limiting step 1171, and the upper end and the lower end of the left side of the second sound insulation cover 182 are both provided with a second matching step 1821. When the second volute 117 and the second sound insulation cover 182 are installed together, the second matching step 1821 is stopped and matched with the second limiting step 1171 to limit the position of the second sound insulation cover 182 relative to the second volute 117 in the left and right directions and the up and down directions, so as to determine the relative position of the second volute 117 and the second sound insulation cover 182, so as to quickly and accurately install the second volute 117 and the second sound insulation cover 182 together.

[0095] In some embodiments, Figure 6 , Figure 7As shown, a step portion 1164 is provided on the right side of the first volute 116, and a step matching portion 1174 is provided on the left side of the second volute 117. When the first volute 116 and the second volute 117 are installed together, the step portion 1164 and the step matching portion 1174 are stopped and matched to limit the position of the second volute 117 relative to the first volute 116 in the left-right direction and the up-down direction, so as to determine the relative position of the first volute 116 and the second volute 117, so as to quickly and accurately install the first volute 116 and the second volute 117 together.

[0096] In some specific embodiments of the present invention, Figure 6 As shown, the housing 10 further includes an air inlet shell 19 . The air inlet shell 19 and the first sound insulation cover 181 are both arranged on the outside of the first volute 116 , and the air inlet shell 19 and the first volute 116 define an air inlet channel 14 .

[0097] like Figure 6 As shown, in this embodiment, the first sound insulation cover 181 and the air inlet shell 19 are both arranged on the left side of the first volute 116, the air inlet shell 19 is located below the first sound insulation cover 181, the first sound insulation cover 181 and the first volute 116 define a first sound absorption chamber 16, the first sound absorption chamber 16 is located on the left side of the air outlet channel 15, the air inlet shell 19 and the first volute 116 define an air inlet channel 14, and the air inlet channel 14 is located on the left side of the accommodating chamber 13.

[0098] In some embodiments, Figure 6 As shown, the inner wall surface of the air inlet channel 14 facing the accommodating chamber 13 includes a first wall surface 143 and a second wall surface 144, the first wall surface 143 and the inlet of the accommodating chamber 13 are at least partially staggered, and the second wall surface 144 is arranged opposite to the inlet of the accommodating chamber 13, and the second wall surface 144 is connected to the downstream of the first wall surface 143 in the airflow direction, and the second wall surface 144 is along the axial direction of the wind wheel 21, and the second wall surface 144 extends obliquely from the first wall surface 143 toward the accommodating chamber 13 in the direction away from the first wall surface 143, so that the air in the air inlet channel 14 is guided by the second wall surface 144, so that the air can smoothly flow to the inlet of the accommodating chamber 13 along the second wall surface 144, so that the air in the air inlet channel 14 can quickly enter the accommodating chamber 13 from the inlet of the accommodating chamber 13, so as to ensure the orderly flow of air in the air inlet channel 14, and to reduce the formation of vortices in the air inlet channel 14, which is convenient for improving the flow rate of air on the one hand, and for reducing the generation of noise in the air inlet channel 14 on the other hand.

[0099] like Figure 6As shown, in the present embodiment, the axial direction of the wind wheel 21 extends in the left-right direction, and the left inner wall surface of the air inlet channel 14 includes a first wall surface 143 and a second wall surface 144, the first wall surface 143 extends in the up-down direction, the left end of the second wall surface 144 is connected to the upper end of the first wall surface 143, and the second wall surface 144 extends upward from left to right, so that the air in the air inlet channel 14 can gradually flow rightward and upward along the second wall surface 144 into the accommodating chamber 13 (it should be understood here that the above-mentioned direction limitation is only for the convenience of describing the accompanying drawings, and will not limit the actual setting position and direction of the fresh air module 8 of the air conditioner), so as to ensure the orderly flow of air in the air inlet channel 14 and reduce the formation of vortices in the air inlet channel 14, which is convenient for increasing the flow rate of air on the one hand, and reducing the generation of noise in the air inlet channel 14 on the other hand.

[0100] In some embodiments, the air inlet housing 19 and the first sound insulation cover 181 are integrally formed, which makes it easy to reduce the number of parts of the fan assembly and reduce the complexity of the fan assembly structure. The first sound insulation cover 181 and the air inlet housing 19 can be installed directly at the same time, so that the first sound insulation cover 181 and the first volute 116 define a sound absorption cavity, and the air inlet housing 19 and the first volute 116 define an air inlet channel 14.

[0101] In some embodiments of the invention, Figure 4 As shown, the air outlet channel 15 includes a first air outlet section 152. In the air flow direction, the first air outlet section 152 is located downstream of the bent air outlet section 151 and its cross-section gradually increases. This is convenient for increasing the area of ​​the outlet of the air outlet channel 15. On the one hand, it is convenient to reduce the resistance encountered by the air flowing in the air outlet channel 15, so that the air in the air outlet channel 15 can flow stably to the designated area. On the other hand, it is convenient to expand the air outlet area, so that the air in the air outlet channel 15 can flow evenly to the designated area.

[0102] In some optional embodiments of the present invention, Figure 4 As shown, the air outlet channel 15 also includes a second air outlet section 153. In the air flow direction, the second air outlet section 153 is located upstream of the bent air outlet section 151 and forms a straight structure. The two ends of the bent air outlet section 151 are respectively connected to the first air outlet section 152 and the second air outlet section 153 by arc transition. That is to say, the air entering the air outlet channel 15 from the accommodating cavity 13 first passes through the second air outlet section 153 and then enters the bent air outlet section 151, and flows through the bent air outlet section 151 along the first air outlet section 152 to the designated area.

[0103] The second air outlet section 153 is a straight air outlet section, so that when the air just enters the air outlet channel 15, the straight air outlet section can be used to guide the flow of air, thereby reducing the resistance encountered by the air when entering the air outlet channel 15, avoiding air turbulence at the inlet of the air outlet channel 15, so that the air can enter the air outlet channel 15 smoothly and quickly.

[0104] The two ends of the bent air outlet section 151 are connected to the first air outlet section 152 and the second air outlet section 153 by arc transition, so that the air can flow smoothly into the bent air outlet section 151 along the second air outlet section 153, and the air in the bent air outlet section 151 can flow smoothly into the first air outlet section 152, avoiding air gathering at the connection between the second air outlet section 153 and the bent air outlet section 151, and avoiding air gathering at the connection between the bent air outlet section 151 and the first air outlet section 152.

[0105] In some embodiments of the present invention, Figure 8 As shown, the accommodating cavity 13 and the air outlet channel 15 are arranged in the first direction, the shell 10 has a third side wall 113 and a fourth side wall 114 arranged relatively in the second direction, the first direction, the second direction and the axial direction of the wind wheel 21 are perpendicular to each other, and the shell 10 has a partition 117, which extends from the third side wall 113 to the fourth side wall 114, the outlet of the air outlet channel 15 is arranged on the third side wall 113, and the inlet of the air outlet channel 15 is located between the partition 117 and the fourth side wall 114. This arrangement facilitates increasing the length of the air outlet channel 15.

[0106] Specifically, the noise generated at the wind wheel 21 in the fan assembly is relatively large. Since the outlet of the air outlet channel 15 is connected to the designated area, the noise generated at the wind wheel 21 needs to pass through the air outlet channel 15 and be transmitted from the outlet of the air outlet channel 15 to the designated area. By setting the inlet of the air outlet channel 15 away from the outlet of the air outlet channel 15 and increasing the length of the air outlet channel 15, it is convenient to extend the time that the sound passes through the air outlet channel 15, thereby consuming the energy in the sound to reduce the noise transmitted by the wind wheel 21 to the designated area.

[0107] like Figure 8 As shown, in the present embodiment, the first direction extends in the up-down direction, the air outlet channel 15 is arranged above the accommodating cavity 13, the second direction extends in the front-to-back direction, the third side wall 113 is the front side wall of the shell 10, the fourth side wall 114 is the rear side wall of the shell 10, the rear end of the partition 117 and the rear side wall of the shell 10 define the inlet of the air outlet channel 15, the outlet of the air outlet channel 15 is arranged on the front side wall of the shell 10, and the air in the air outlet channel 15 flows forward in the front-to-back direction to the designated area.

[0108] In some embodiments, the distance between one end of the partition 117 close to the fourth side wall 114 and the fourth side wall 114 is smaller than the distance between one end of the partition 117 close to the fourth side wall 114 and the third side wall 113, so that the inlet of the air outlet channel 15 is set at a position close to the fourth side wall 114. Since the outlet of the air outlet channel 15 is located on the third side wall 113, the inlet of the air outlet channel 15 can be set away from the outlet of the air outlet channel 15.

[0109] Specifically, the noise generated at the wind wheel 21 is relatively large, and the inlet of the air outlet channel 15 is arranged away from the outlet of the air outlet channel 15. The noise at the wind wheel 21 needs to pass through the air outlet channel 15 before being transmitted to the designated area. This makes it easier to reduce the noise transmitted from the wind wheel 21 to the designated area.

[0110] In some embodiments of the present invention, Figure 8 As shown, a plurality of guide plates 41 are provided in the air outlet channel 15, and the plurality of guide plates 41 are arranged at intervals in the width direction of the air outlet channel 15, so as to utilize the plurality of guide plates 41 to fully guide the flow direction of the air in the air outlet channel 15, thereby avoiding the formation of vortices in the air outlet channel 15 due to insufficient guidance of the air by the guide plates 41.

[0111] like Figure 8 As shown, in the present embodiment, the width of the air outlet channel 15 extends in the up-down direction (it should be understood here that the above-mentioned direction limitation is only for the convenience of describing the accompanying drawings and will not limit the actual setting position and direction of the fan assembly), and a plurality of guide plates 41 are arranged at intervals in the up-down direction. Driven by the wind wheel 21, the air in the accommodating chamber 13 enters the air outlet channel 15 from the inlet of the air outlet channel 15. At this time, the plurality of guide plates 41 can jointly guide the air entering the air outlet channel 15, thereby facilitating the improvement of the air guiding efficiency and preventing the air entering the air outlet channel 15 from gathering in a certain place and affecting the flow of air in the air outlet channel 15.

[0112] In some embodiments, Figure 8 As shown, the guide plate 41 is formed as an arc-shaped plate extending along the circumference of the wind wheel 21, the first end of the guide plate 41 is bent in the direction close to the wind wheel 21, and the second end of the guide plate 41 extends in the direction of the diverter, so that when the wind wheel 21 drives the air in the accommodating chamber 13 to enter the air outlet channel 15 from the inlet of the air outlet channel 15, the first end of the guide plate 41 can control the flow direction of the air, so that the air can flow along the guide plate 41 to the diverter, and then the air can flow smoothly from the outlet of the air outlet channel 15 to the designated area along the diverter.

[0113] The fresh air module 8 of the air conditioner according to the embodiment of the present invention is described below. The fresh air module 8 of the air conditioner according to the embodiment of the present invention comprises a fan assembly and a filter 82 according to the above embodiment of the present invention.

[0114] The entrance of the air inlet channel 14 is the fresh air inlet, and the filter element 82 is arranged in the air inlet channel 14. The filter element 82 can filter the air passing through the filter element 82 in the air inlet channel 14, thereby ensuring the cleanliness of the air entering the accommodating chamber 13, preventing unclean air from polluting the wind wheel 21 in the accommodating chamber 13, and thereby ensuring the cleanliness of the air in the air outlet channel 15 to provide clean air to the designated area.

[0115] In some embodiments, the fresh air inlet includes a first fresh air inlet 811 and a second fresh air inlet 812. The first fresh air inlet 811 and the second fresh air inlet 812 are both connected to the air outlet channel 15. The first fresh air inlet 811 is connected to the indoor, and the second fresh air inlet 812 is connected to the outdoor.

[0116] A valve 62 and a motor unit 61 are also provided in the housing 10 . The motor unit 61 cooperates with the valve 62 to control the movement of the valve 62 so that the valve 62 can switch between connecting the first fresh air inlet 811 and the air inlet channel 14 or connecting the second fresh air inlet 812 and the air inlet channel 14 .

[0117] When it is necessary to filter the indoor air, the valve 62 connects the first fresh air inlet 811 and the air inlet channel 14. At this time, the indoor air enters the air inlet channel 14 from the first fresh air inlet 811, and flows to the designated area along the air outlet channel 15 after being processed in the fan assembly. When it is necessary to introduce fresh air into the room, the valve 62 connects the second fresh air inlet 812 and the air inlet channel 14. At this time, the outdoor air enters the air inlet channel 14 from the second fresh air inlet 812, and flows to the designated area along the air outlet channel 15 after being processed in the fan assembly.

[0118] In some examples, the filter element 82 is placed obliquely in the air inlet channel 14, and the filter element 82 divides the air inlet channel 14 into a first air inlet chamber and a second air inlet chamber. The first air inlet chamber is connected to the fresh air inlet, and the second air inlet chamber is connected to the accommodating chamber 13. The air entering the first air inlet chamber from the fresh air inlet enters the second air inlet chamber after being filtered by the filter element 82, and enters the accommodating chamber 13 along the second air inlet chamber.

[0119] Among them, the filter element 82 is placed obliquely in the air inlet channel 14 to increase the contact area between the filter element 82 and the air in the first air inlet cavity, so as to improve the filtering efficiency of the filter element 82 on the air in the first air inlet cavity, so that the filter element 82 can fully and quickly filter the air in the first air inlet cavity.

[0120] In some examples, a side wall of the shell 10 is provided with an access port, which is connected to the air inlet channel 14 , and the filter 82 can be pulled out from the access port and disposed in the air inlet channel 14 to facilitate cleaning or replacement of the filter 82 .

[0121] The fresh air module 8 of the air conditioner according to the embodiment of the present invention has the following advantages by utilizing the fan assembly according to the above embodiment of the present invention.

[0122] The air conditioner according to the embodiment of the present invention is described below. The air conditioner according to the embodiment of the present invention comprises a fan assembly or a fresh air module 88 according to the above embodiment of the present invention.

[0123] The air conditioner according to the embodiment of the present invention has the following advantages by utilizing the fan assembly according to the above embodiment of the present invention.

[0124] Other structures and operations of the air conditioner according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0125] In the description of the present invention, 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 positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0126] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0127] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0128] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does 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.

[0129] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fan assembly, characterized in that: include: A housing, wherein the housing defines a receiving chamber, an air inlet passage, and an air outlet passage, wherein the receiving chamber is connected between the air inlet passage and the air outlet passage; A wind wheel and a motor, wherein the wind wheel is rotatably disposed in the accommodating cavity, and the motor is connected to the wind wheel to drive the wind wheel to rotate; Wherein, in the flow direction of air, at least a portion of the air outlet passage is a bent air outlet section.

2. The fan assembly according to claim 1, characterized in that: The wall portion defining the air outlet channel includes a first side wall and a second side wall that are oppositely arranged, and at least one of the first side wall and the second side wall includes a bending section.

3. The fan assembly according to claim 2, characterized in that: The first side wall includes a first bending section, the second side wall includes a second bending section, the first bending section and the second bending section are arranged opposite to each other and have the same bending direction.

4. The fan assembly according to claim 2, characterized in that: The first side wall and the second side wall are arranged opposite to each other in the axial direction of the wind wheel.

5. The fan assembly according to claim 2, characterized in that: The shell further defines a first sound absorbing chamber and a second sound absorbing chamber, the first sound absorbing chamber and the second sound absorbing chamber are located on opposite sides of the air outlet channel, the first sound absorbing chamber and the second sound absorbing chamber are both communicated with the air outlet channel, and sound absorbing members are disposed in the first sound absorbing chamber and the second sound absorbing chamber.

6. The fan assembly according to claim 5, characterized in that: The first side wall separates the air outlet channel and the first sound absorbing cavity, and the first side wall is provided with a plurality of first air holes, and the first air holes connect the first sound absorbing cavity and the air outlet channel; The second side wall separates the air outlet channel from the second sound absorbing cavity and the second side wall is provided with a plurality of second air holes, and the second air holes communicate with the second sound absorbing cavity and the air outlet channel.

7. The fan assembly according to claim 5, characterized in that: The housing comprises: A first volute and a second volute, wherein the first volute and the second volute are arranged opposite to each other to define the accommodating chamber and the air outlet passage; a first soundproof cover, the first soundproof cover being arranged on the outer side of the first volute and defining the first sound absorbing cavity between the first soundproof cover and the first volute; A second soundproof cover is arranged on the outside of the second volute and defines the second sound absorbing cavity between the second soundproof cover and the second volute.

8. The fan assembly according to claim 7, characterized in that: The first volute and the first sound insulation cover, the second volute and the second sound insulation cover, and the first volute and the second volute are connected respectively by means of a snap connection or fasteners.

9. The fan assembly according to claim 1, characterized in that: The air outlet channel includes a first air outlet section. In the flow direction of the air, the first air outlet section is located downstream of the bent air outlet section and has a gradually increasing cross-section.

10. The fan assembly according to claim 9, characterized in that: The air outlet channel also includes a second air outlet section. In the air flow direction, the second air outlet section is located upstream of the bent air outlet section and forms a straight structure. The two ends of the bent air outlet section are respectively connected to the first air outlet section and the second air outlet section by arc transition.

11. The fan assembly according to any one of claims 1 to 10, characterized in that: The accommodating cavity and the air outlet channel are arranged in a first direction, the housing has a third side wall and a fourth side wall which are arranged opposite to each other in a second direction, and the first direction, the second direction and the axial direction of the wind wheel are perpendicular to each other; The shell has a partition portion therein, the partition portion extends from the third side wall toward the fourth side wall, the outlet of the air outlet channel is arranged on the third side wall, and the inlet of the air outlet channel is located between the partition portion and the fourth side wall.

12. A fresh air module for an air conditioner, characterized in that: include: A fan assembly, wherein the fan assembly is a fan assembly according to any one of claims 1 to 11, and the inlet of the air inlet channel is a fresh air inlet; A filter element is arranged in the air inlet passage.

13. An air conditioner, characterized in that: It comprises the fan assembly according to any one of claims 1 to 11; or, it comprises the fresh air module of the air conditioner according to claim 12.

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