Fan assembly, fresh air module with same and air conditioner

Abstract

The invention discloses a fan assembly and a fresh air module and an air conditioner with the fan assembly, 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; the shell comprises a shell body and a volute tongue, the shell body is provided with a first side wall and a second side wall which are oppositely arranged, an outlet of the air outlet channel is formed in the top of the shell, the first end of the volute tongue is connected with the first side wall, and the second end of the volute tongue extends towards the second side wall. The distance between the second end of the volute tongue and the second side wall is smaller than the distance between the second end of the volute tongue and the first side wall. 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, a 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; the shell includes a shell body and a volute tongue, the shell body has a first side wall and a second side wall arranged opposite to each other, the outlet of the air outlet channel is arranged at the top of the shell, the first end of the volute tongue is connected to the first side wall and the second end extends toward the second side wall, and the distance between the second end of the volute tongue and the second side wall is smaller than the distance between the second end of the volute tongue and the first side wall.

[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, at least one sound absorbing member is further included, and the sound absorbing member is located on the outside of at least one wall portion of the air outlet channel, and the wall portion has air holes.

[0009] According to some embodiments of the present invention, the sound absorbing member is disposed on outer sides of at least two opposite or adjacent wall portions of the air outlet channel.

[0010] According to some embodiments of the present invention, the shell further defines at least one sound absorbing cavity, which is located on the outside of at least one wall portion of the air outlet channel and is connected to the air outlet channel through the air hole, and the sound absorbing element is disposed in the sound absorbing cavity.

[0011] According to some optional embodiments of the present invention, the shell includes at least one sound insulation cover, the shell body defines the accommodating cavity, the air inlet channel and the air outlet channel, and the sound insulation cover is arranged outside the shell body and cooperates with the shell body to jointly define the sound absorption cavity.

[0012] According to some specific embodiments of the present invention, a portion of the shell body facing the sound insulation cover has a grille structure, and the grille structure separates the air outlet channel and the sound absorption chamber; wherein the grille structure defines a plurality of air holes, and the plurality of air holes connect the sound absorption chamber and the air outlet channel.

[0013] According to some optional embodiments of the present invention, a first mounting lug is provided on the outer side of the shell body, a second mounting lug is provided on the outer side of the sound insulation cover, the shell body and the sound insulation cover are connected by fasteners and the fasteners are passed through the first mounting lug and the second mounting lug.

[0014] According to some optional embodiments of the present invention, the shell body includes a first volute and a second volute, and the first volute and the second volute are arranged relative to each other to define the accommodating cavity and the air outlet channel; wherein the sound insulation cover includes at least two and includes a first sound insulation cover and a second sound insulation cover, a first sound absorption cavity is defined between the first sound insulation cover and the outer side of the first volute, and a second sound absorption cavity is defined between the second sound insulation cover and the second volute, and the sound absorbing component is provided in both the first sound absorption cavity and the second sound absorption cavity.

[0015] According to some specific embodiments of the present invention, one of the first sound insulation cover and the first volute has a first limiting step surrounding the first sound absorption cavity and the other has a first matching step matching the first limiting step; and / or, one of the second sound insulation cover and the second volute has a second limiting step surrounding the second sound absorption cavity and the other has a second matching step matching the second limiting step.

[0016] According to some specific embodiments of the present invention, the shell further includes an air inlet shell, the air inlet shell and the first sound insulation cover are both arranged on the outside of the first volute, and the air inlet shell and the first volute define the air inlet channel.

[0017] In some embodiments, the air inlet shell and the first sound insulation cover are integrally formed.

[0018] According to some embodiments of the present invention, the air outlet channel includes an air outlet section whose cross-sectional area gradually increases along the air flow direction, and at least a portion of the sound absorbing component is arranged on the outer side of the wall portion of the air outlet section.

[0019] According to some embodiments of the present invention, the first side wall and the second side wall are arranged relative to each other in a first direction, the first direction is perpendicular to the up and down direction, and the first direction is perpendicular to the up and down direction; the air outlet channel is located above the accommodating cavity and extends along the first direction or along the circumference of the accommodating cavity, and the second end of the snail tongue and the second side wall define the entrance of the air outlet channel.

[0020] 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 up and down directions and the first side wall is located above the second side wall; the air outlet channel is located on one side of the accommodating cavity and extends along the up and down directions or the circumference of the accommodating cavity, and the outlet of the air outlet channel is arranged on the first side wall.

[0021] 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.

[0022] The fresh air module of 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.

[0023] 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.

[0024] 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.

[0025] 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

[0026] 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:

[0027] Figure 1 is a schematic structural diagram of a fresh air module according to a first embodiment of the present invention.

[0028] Figure 2 is a schematic structural diagram of a fresh air module according to a first embodiment of the present invention.

[0029] Figure 3 is a cross-sectional view of a fresh air module according to a first embodiment of the present invention.

[0030] Figure 4 2 is a schematic structural diagram of a fresh air module according to a second embodiment of the present invention.

[0031] Figure 5 2 is a schematic structural diagram of a fresh air module according to a second embodiment of the present invention.

[0032] Figure 6 is a cross-sectional view of a fresh air module according to a second embodiment of the present invention.

[0033] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0034] Figure 8 is a cross-sectional view of a fresh air module according to a second embodiment of the present invention.

[0035] Fig. 9 4 is a schematic structural diagram of a fresh air module according to a third embodiment of the present invention.

[0036] Fig.10 4 is a schematic structural diagram of a fresh air module according to a third embodiment of the present invention.

[0037] Fig.11 is a cross-sectional view of a fresh air module according to a third embodiment of the present invention.

[0038] Reference numerals: housing 10,

[0039] Shell body 11, first side wall 111, second side wall 112, air hole 114, first volute 116, first limiting step 1161, first lug 1162, step portion 1163, second volute 117, second limiting step 1171, second lug 1172, step matching portion 1173, first mounting lug 118,

[0040] The volute tongue 12, the accommodating chamber 13, the air inlet channel 14, the air outlet channel 15, the first bent air outlet section 151, the second bent air outlet section 152, the diversion channel 153,

[0041] The first sound absorbing chamber 16, the second sound absorbing chamber 17,

[0042] Soundproof cover 18, first soundproof cover 181, first matching step 1811, second soundproof cover 182, second matching step 1821, second mounting lug 183,

[0043] Air inlet housing 19, wind wheel 21, motor 22,

[0044] Dividing part 30, first diverting member 301, second diverting member 302,

[0045] Divider 31, first diverter plate 311, second diverter plate 312, connecting plate 313,

[0046] The first guide plate 41, the second guide plate 42, the guide plate 43,

[0047] Sound absorbing parts 50,

[0048] Fresh air module 8, first fresh air inlet 811, second fresh air inlet 812, filter element 82. DETAILED DESCRIPTION

[0049] Embodiments of the present invention are described in detail below, examples of which 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.

[0050] The fan assembly according to the embodiment of the present invention is described below with reference to the accompanying drawings.

[0051] like Figure 1-Figure 11 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 .

[0052] 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.

[0053] Among them, the shell 10 includes a shell body 11 and a volute tongue 12, the shell body 11 has a first side wall 111 and a second side wall 112 arranged opposite to each other, the outlet of the air outlet channel 15 is arranged at the top of the shell 10, the first end of the volute tongue 12 is connected to the first side wall 111 and the second end extends toward the second side wall 112, the volute tongue 12 is arranged in the shell body 11 and divides the space in the shell body 11 into a accommodating cavity 13 and an air outlet channel 15, the outlet of the air outlet channel 15 is arranged on the first side wall 111, and the first end of the volute tongue 12 extends toward the second side wall 112 to increase the length of the air outlet channel 15.

[0054] The distance between the second end of the volute tongue 12 and the second side wall 112 is smaller than the distance between the second end of the volute tongue 12 and the first side wall 111, so that the inlet of the air outlet channel 15 is set at a position close to the second side wall 112. Since the outlet of the air outlet channel 15 is located on the first side wall 111, the inlet of the air outlet channel 15 can be set away from the outlet of the air outlet channel 15, thereby extending the length of the air outlet channel 15.

[0055] 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.

[0056] In addition, the outlet of the air outlet channel 15 is set at the top of the shell 10, so that the air in the air outlet channel 15 flows upward from the top of the shell 10 to the designated area to provide fresh air for the designated area. When the position of the fan assembly is low, the fan assembly guides the air upward into the designated area. When providing fresh air to the user, the fresh air can be guided upward to a suitable height, thereby improving the user experience.

[0057] Therefore, 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 to consume the energy in the sound, thereby reducing the noise transmitted to the designated area.

[0058] The fan assembly according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0059] like Figure 1-Figure 11 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 .

[0060] In some embodiments of the present invention, the fan assembly also includes at least one sound absorbing member 50, which is located on the outside of at least one wall portion of the air outlet channel 15 and the wall portion has an air hole 114. When air flows in the air outlet channel 15 and there is noise in the air outlet channel 15, the vibration in the air outlet channel 15 can be transmitted to the sound absorbing member 50 through the air hole 114. The sound absorbing member 50 located on the outside of the wall portion of the air outlet channel 15 can buffer the vibration of the air, that is, absorb the energy in the sound, thereby reducing the noise transmitted from the air outlet channel 15 and reducing the noise transmitted by the fan assembly to the designated area.

[0061] Specifically, the noise generated in the fan assembly will be transmitted to the designated area through the outlet of the air outlet channel 15. A sound absorbing member 50 is arranged on the outer side of the wall of the air outlet channel 15. The sound absorbing member 50 is utilized to absorb the sound in the air outlet channel 15 to reduce the noise from 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. This method can achieve noise reduction of the fan assembly through a simple structure, which is convenient for cost saving.

[0062] At the same time, the sound absorbing member 50 is arranged on the outside of the air outlet channel 15, so that the sound absorbing member 50 can be easily installed or disassembled while being used to absorb the noise in the air outlet channel 15. The sound absorbing member 50 is arranged on the outside of the air outlet channel 15, so that sufficient installation space can be reserved for the sound absorbing member 50, and the specific shape of the sound absorbing member 50 can be designed according to the shape and size of the air outlet channel 15.

[0063] In some embodiments of the present invention, sound absorbing members 50 are provided on the outer sides of at least two opposite or adjacent walls of the air outlet channel 15 to increase the matching area between the sound absorbing member 50 and the wall of the air outlet channel 15, thereby increasing the ability of the sound absorbing member 50 to absorb noise in the air outlet channel 15, so that the sound absorbing member 50 can fully absorb the sound in 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.

[0064] In some embodiments, sound absorbing members 50 are provided on the opposite side walls of the air outlet channel 15, for example, the left side wall and the right side wall of the air outlet channel 15 are provided with sound absorbing members 50, or the front side wall and the rear side wall of the air outlet channel 15 are provided with sound absorbing members 50. This facilitates increasing the contact area between the sound absorbing member 50 and the side wall of the air outlet channel 15, thereby enabling the sound absorbing member 50 to fully absorb the sound in 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.

[0065] In other embodiments, adjacent side walls of the air outlet channel 15 are provided with sound absorbing members 50, for example, the front side wall and the left side wall of the air outlet channel 15 are provided with sound absorbing members 50, or the front side wall and the right side wall of the air outlet channel 15 are provided with sound absorbing members 50, or the front side wall, the left side wall and the right side wall of the air outlet channel 15 are provided with sound absorbing members 50. This facilitates increasing the contact area between the sound absorbing member 50 and the side walls of the air outlet channel 15, thereby enabling the sound absorbing member 50 to fully absorb the sound in 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.

[0066] In some other embodiments, sound absorbing members 50 are provided on the side walls surrounding the air outlet channel 15. For example, the front side wall, the rear side wall, the left side wall and the right side wall of the air outlet channel 15 are all provided with sound absorbing members 50. This facilitates increasing the contact area between the sound absorbing member 50 and the side wall of the air outlet channel 15, so that the sound absorbing member 50 can fully absorb the sound in 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] In some embodiments of the present invention, the shell 10 further defines at least one sound absorbing cavity, which is located on the outside of at least one wall portion of the air outlet channel 15. The sound absorbing cavity is connected to the air outlet channel 15 through the air hole 114. The sound absorbing member 50 is disposed in the sound absorbing cavity. By providing the sound absorbing cavity, 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.

[0068] Among them, the sound in the air outlet channel 15 can be transmitted to the sound absorption chamber through the air hole 114. The sound absorbing element 50 in the sound absorption chamber can buffer the vibration in the air, and then absorb the energy in the sound, perform noise reduction treatment on the air outlet channel 15, and then reduce the noise transmitted from the outlet of the air outlet channel 15, and reduce the noise transmitted to the designated area.

[0069] In addition, the sound absorbing member 50 is disposed in the sound absorbing cavity, and the position of the sound absorbing member 50 is limited by the sound absorbing cavity to prevent the sound absorbing member 50 from entering the air outlet channel 15 and affecting the flow speed and direction of the air in the air outlet channel 15, thereby ensuring the stable flow of air in the air outlet channel 15.

[0070] In some optional embodiments of the present invention, Figure 1 , Figure 4 , Figure 6As shown, the shell 10 includes at least one sound insulation cover 18, and the shell body 11 defines a accommodating cavity 13, an air inlet channel 14 and an air outlet channel 15. The sound insulation cover 18 is arranged outside the shell body 11 and cooperates with the shell body 11 to jointly define a sound absorption cavity, so that the sound absorbing member 50 can be confined in the sound absorption cavity, and after the sound in the air outlet channel 15 enters the sound absorption cavity, the sound in the sound absorption cavity is prevented from leaking.

[0071] Specifically, the sound insulation cover 18 and the shell body 11 jointly define a sound absorption cavity, so that the sound absorbing member 50 can be conveniently placed in the sound absorption cavity, so that the sound absorbing member 50 can buffer the vibration in the air outlet channel 15, absorb the sound generated 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.

[0072] In some specific embodiments of the present invention, the portion where the shell body 11 and the sound insulation cover 18 face each other has a grille structure, which separates the air outlet channel 15 from the sound absorption chamber, thereby facilitating the limitation of the position of the sound absorbing component 50 in the sound absorption chamber, thereby preventing the sound absorbing component 50 from being located in the air outlet channel 15 and affecting the flow direction of air in the air outlet channel 15.

[0073] Among them, the grille structure defines a plurality of air holes 114, and the plurality of air holes 114 connect the sound absorbing cavity and the air outlet channel 15. The noise in the air outlet channel 15 can enter the sound absorbing cavity through the plurality of air holes 114 defined by the grille structure. The sound absorbing member 50 in the sound absorbing cavity can buffer the vibration in the air and absorb the energy in the sound, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0074] In some specific embodiments of the present invention, a first mounting lug 118 is provided on the outer side of the shell body 11, and a second mounting lug 183 is provided on the outer side of the sound insulation cover 18. The shell body 11 and the sound insulation cover 18 are connected by fasteners, and the fasteners are passed through the first mounting lug 118 and the second mounting lug 183 to facilitate the installation of the shell body 11 and the sound insulation cover 18 together or the disassembly of the shell body 11 and the sound insulation cover 18.

[0075] At the same time, when the shell body 11 and the sound insulation cover 18 are installed together, the first mounting lug 118 and the second mounting lug 183 can be used to determine the relative positions of the shell body 11 and the sound insulation cover 18, so that the shell body 11 and the sound insulation cover 18 can be installed together quickly and accurately, thereby enabling the shell body 11 and the sound insulation cover 18 to define a sound absorption cavity.

[0076] In some other specific embodiments of the present invention, one of the outer side of the shell body 11 and the outer side of the sound insulation cover 18 is provided with a snap-on protrusion, and the other is provided with a snap-on arm, and the snap-on arm is provided with a snap-on recess. When the shell body 11 and the sound insulation cover 18 need to be installed together, the relative positions of the shell body 11 and the sound insulation cover 18 can be determined according to the positions of the snap-on protrusion and the snap-on arm, and then the shell body 11 and the sound insulation part are translated so that the two move in a direction approaching each other. When the snap-on protrusion is snap-fitted with the snap-on recess, the shell body 11 and the sound insulation cover 18 are installed together.

[0077] When the shell body 11 and the sound insulation cover 18 need to be separated, the clamping arm can be operated first to disengage the clamping protrusion from the clamping recess, and then the shell body 11 and the sound insulation part can be translated to move away from each other, thereby achieving the separation of the shell body 11 and the sound insulation cover 18.

[0078] In some specific embodiments of the present invention, Figure 1 As shown, Figure 5 , Figure 7 As shown, the shell body 11 includes a first volute 116 and a second volute 117, and the first volute 116 and the second volute 117 are arranged opposite to each other to define a accommodating chamber 13 and an air outlet channel 15. The soundproof cover 18 includes at least two and includes a first soundproof cover 181 and a second soundproof cover 182. A first sound absorption chamber 16 is defined between the first soundproof cover 181 and the outer side of the first volute 116, and a second sound absorption chamber 17 is defined between the second soundproof cover 182 and the second volute 117. Sound absorbing members 50 are provided in the first sound absorption chamber 16 and the second sound absorption chamber 17. The vibration in the air outlet channel 15 can enter the first sound absorption chamber 16 or the second sound absorption chamber 17 through the air hole 114, so that the sound absorbing members 50 in the first sound absorption chamber 16 and the second sound absorption chamber 17 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.

[0079] In some embodiments, the first sound insulation cover 181 is disposed on the left side of the first volute 116. 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 left side wall of the first volute 116 is a first grille structure. A plurality of first air holes are defined on the first grille structure. The air outlet channel 15 is connected to the first sound absorption chamber 16 through the first air holes. The vibration in the air outlet channel 15 can enter the first sound absorption chamber 16 through the first air holes, so that the sound absorbing member 50 in the first sound absorption 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.

[0080] The second sound insulation cover 182 is arranged on the right side of the second volute 117. The second sound insulation cover 182 and the second volute 117 define a second sound absorption chamber 17. The second sound absorption chamber 17 is located on the right side of the air outlet channel 15. The right side wall of the second volute 117 is a second grille structure. The second grille structure defines a plurality of second air holes. The air outlet channel 15 is connected to the second sound absorption chamber 17 through the second air holes. The vibration in the air outlet channel 15 can enter the second sound absorption chamber 17 through the second air holes, so that the sound absorbing member 50 in the second sound absorption chamber 17 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.

[0081] In some embodiments, Figure 1 As shown, 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. A first mounting lug 118 is provided on the left side of the first volute 116, and a second mounting lug 183 is provided on the first sound insulation cover 181. Fasteners are passed through the first mounting lug 118 and the second mounting lug 183 to fix the first sound insulation cover 181 and the first volute 116 together.

[0082] 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. A first mounting lug 118 is provided on the right side of the second volute 117, and a second mounting lug 183 is provided on the second sound insulation cover 182. Fasteners are passed through the first mounting lug 118 and the second mounting lug 183 to fix the second sound insulation cover 182 and the second volute 117 together.

[0083] In some examples, such as Figure 2 As shown, a first lug 1162 is disposed on the right side of the first volute 116 , and a second lug 1172 is disposed on the left side of the second volute 117 . A fastener may pass through the first lug 1162 and the second lug 1172 to fix the first volute 116 and the second volute 117 together.

[0084] In other embodiments, the first sound insulation cover 181 and the first volute 116 are fixedly connected together by a snap-fit ​​structure, the second sound insulation cover 182 and the second volute 117 are fixedly connected together by a snap-fit ​​structure, and the first volute 116 and the second volute 117 are fixedly connected together by a snap-fit ​​structure.

[0085] In some specific embodiments of the present invention, Figure 6 , Figure 7As 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.

[0086] 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.

[0087] In some specific embodiments of the present invention, 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.

[0088] 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.

[0089] In some embodiments, Figure 6 , Figure 7 As shown, a step portion 1163 is provided on the right side of the first volute 116, and a step matching portion 1173 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 1163 and the step matching portion 1173 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.

[0090] In some specific embodiments of the present invention, the housing 10 further includes an air inlet shell 19 . The air inlet shell 19 and the first sound insulation cover 181 are both disposed 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 .

[0091] 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.

[0092] 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.

[0093] In some embodiments of the present invention, the air outlet channel 15 includes an air outlet section whose cross-sectional area gradually increases along the air flow direction. This arrangement facilitates increasing the area of ​​the outlet of the air outlet channel 15. On the one hand, it facilitates reducing 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 facilitates expanding the air outlet area, so that the air in the air outlet channel 15 can flow evenly to the designated area.

[0094] Among them, at least a part of the sound absorbing member 50 is arranged on the outer side of the wall of the air outlet section to buffer the vibration of the air at the air outlet section, thereby absorbing the sound at the air outlet section and performing noise reduction treatment on the air outlet section.

[0095] Specifically, the air in the air outlet channel 15 is guided to the designated area at the air outlet section. The air outlet section is close to the designated area, and the sound absorbing member 50 is used to perform noise reduction treatment on the air discharged from the air outlet section to reduce the noise transmitted to the designated area.

[0096] In some embodiments of the present invention, the first side wall 111 and the second side wall 112 are arranged relatively to each other in a first direction, the first direction is perpendicular to the up and down direction, the air outlet channel 15 is located above the accommodating cavity 13 and extends along the first direction or along the circumference of the accommodating cavity 13, the second end of the snail tongue 12 and the second side wall 112 define the inlet of the air outlet channel 15, and by arranging the inlet and outlet of the air outlet channel 15 on two opposite sides along the first direction, it is convenient to increase the length of the air outlet channel 15 along the first direction, so as to extend the length of the air outlet channel 15, and to extend the time for sound to be transmitted in the air outlet channel 15, so as to consume the energy in the sound, thereby reducing the noise transmitted to the designated area.

[0097] In some embodiments, when the sound absorbing member 50 is disposed outside the air outlet channel 15 , it is convenient to increase the length of the sound absorbing member 50 along the first direction so that the sound absorbing member 50 can fully absorb the sound in the air outlet channel 15 to perform noise reduction treatment on the air outlet channel 15 .

[0098] like Figure 3 As shown, in the first embodiment of the present invention, the first direction extends along the front-to-back direction, the first side wall 111 is the rear side wall, the second side wall 112 is the front side wall, and the volute tongue 12 extends from the rear to the front to separate the shell body 11 into a receiving chamber 13 and an air outlet channel 15. The air outlet channel 15 is located above the receiving chamber 13, and the outlet of the air outlet channel 15 is located at the top of the shell 10. The air in the air outlet channel 15 flows upward from the top of the shell 10 to the designated area to provide fresh air for the designated area. When the fan assembly is at a lower position, the fan assembly guides the air upward to the designated area. When providing fresh air to the user, the fresh air can be guided upward to a suitable height, which is convenient for improving the user experience.

[0099] The front end of the volute tongue 12 and the front side wall of the shell body 11 define the inlet of the air outlet channel 15, so that the inlet of the air outlet channel 15 is located on the front side, and the outlet of the air outlet channel 15 is located on the rear side, and the air in the air outlet channel 15 flows upward from the outlet of the air outlet channel 15 to the designated area from front to rear.

[0100] like Figure 8As shown, in the second embodiment of the present invention, the first direction extends along the front-to-back direction, the first side wall 111 is the front side wall, the second side wall 112 is the rear side wall, and the volute tongue 12 extends from the front to the back to separate the shell body 11 into a receiving chamber 13 and an air outlet channel 15. The outlet of the air outlet channel 15 is located at the top of the shell 10, and the air in the air outlet channel 15 flows upward from the top of the shell 10 to the designated area to provide fresh air for the designated area. Among them, when the position of the fan assembly is low, the fan assembly guides the air upward to the designated area. When providing fresh air to the user, the fresh air can be guided upward to a suitable height, which is convenient for improving the user experience.

[0101] The rear end of the volute tongue 12 and the rear side wall of the shell body 11 define the inlet of the air outlet channel 15, so that the inlet of the air outlet channel 15 is located on the rear side, and the outlet of the air outlet channel 15 is located on the front side, and the air in the air outlet channel 15 flows upward from the outlet of the air outlet channel 15 from back to front to the designated area.

[0102] In some embodiments, Figure 4 As shown, the bottom of the shell 10 includes a first fresh air inlet 811 and a second fresh air inlet 812, and the first fresh air inlet 811 and the second fresh air inlet 812 are arranged at the bottom of the rear side of the shell 10, the second fresh air inlet 812 is arranged toward the rear, and the first fresh air inlet 811 is arranged toward the left or the right. The bottom of the shell 10 includes a first fresh air inlet 811 and a second fresh air inlet 812, and 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. A valve is also provided in the shell 10, and the valve can switch to connect the first fresh air inlet 811 with the air inlet channel 14 or to connect the second fresh air inlet 812 with the air inlet channel 14.

[0103] When it is necessary to filter the indoor air, the valve 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 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.

[0104] In some embodiments, Figure 3 , Figure 8As shown, the air outlet channel 15 includes a first bent air outlet section 151 and a second bent air outlet section 152. The first bent air outlet section 151 connects the accommodating chamber 13 and the air outlet channel 15, and the second bent air outlet section 152 connects the air outlet channel 15 and a designated area. Specifically, since the air outlet channel 15 is located above the accommodating chamber 13 and the air outlet channel 15 extends in the front-to-back direction, the first bent air outlet section 151 can guide the air flowing from the accommodating chamber 13 to the air outlet channel 15, so that the air in the accommodating chamber 13 can flow upward into the air outlet channel 15 and flow along the first direction.

[0105] Since the air outlet channel 15 extends in the front-to-back direction and the outlet of the air outlet channel 15 is arranged upward, the second bent end can guide the air flowing from the air outlet channel 15 to the designated area, so that the air in the air outlet channel 15 can flow upward to the designated area when flowing in the first direction.

[0106] Among them, a guide part is provided in the air outlet channel 15, and the guide part includes multiple first guide plates 41 and multiple second guide plates 42. The first guide plate 41 is provided in the first bent air outlet section 151 to fully guide the air flowing from the accommodating chamber 13 to the first air outlet section, so that the air in the accommodating chamber 13 can flow smoothly into the air outlet channel 15, avoiding air gathering at the inlet of the air outlet channel 15, so as to improve the efficiency of air flowing from the accommodating chamber 13 to the air outlet channel 15.

[0107] The second guide plate 42 is arranged at the second bent air outlet section 152 to fully guide the air flowing from the air outlet channel 15 to the designated area, so that the air in the air outlet channel 15 can flow smoothly to the designated area, avoiding the air gathering at the outlet of the air outlet channel 15, thereby improving the efficiency of air flowing from the air outlet channel 15 to the designated area.

[0108] 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 up and down directions, the first side wall 111 is located above the second side wall 112, the air outlet channel 15 is located on one side of the accommodating cavity 13 and extends along the up and down directions or the circumference of the accommodating cavity 13, and the outlet of the air outlet channel 15 is arranged on the first side wall 111, so that the air in the air outlet channel 15 can flow upward along the up and down directions to the designated area.

[0109] That is to say, the inlet of the air outlet channel 15 is arranged close to the second side wall 112 and the outlet of the air outlet channel 15 is arranged on the first side wall 111. The inlet and outlet of the air outlet channel 15 are arranged on two opposite sides in the up and down directions, which is convenient for increasing the length of the air outlet channel 15 in the up and down directions, so as to extend the length of the air outlet channel 15, and facilitate prolonging the time for sound to be transmitted in the air outlet channel 15, so as to consume the energy in the sound, and thereby reduce the noise transmitted to the designated area.

[0110] like Fig.11As shown, in the third embodiment of the present invention, the air outlet channel 15 is located at the rear side of the accommodating cavity 13, and the air in the accommodating cavity 13 flows backward along the front-to-back direction into the air outlet channel 15, and flows upward along the air outlet channel 15 to the designated area in the air outlet channel 15. 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.

[0111] In some embodiments, Fig.11 As shown, the fan assembly includes a diverter portion 30, which is arranged in the air outlet channel 15 to divide the air outlet section of the air outlet channel 15 close to its outlet into multiple diverter channels 153, thereby guiding the flow of air in the air outlet channel 15, so that the air in the air outlet channel 15 can flow evenly from the outlet of the air outlet channel 15 to the designated area along the diverter portion 30.

[0112] When the diverter portion 30 is used to guide the flow direction of the air, the diverter portion 30 can divert the air at the air outlet section of the air outlet channel 15 to avoid a large amount of air gathering in a certain part of the air outlet section, and at the same time it is convenient to reduce the flow speed of the air at the air outlet section to avoid the formation of a jet at the outlet of the air outlet channel 15 and avoid generating a large jet noise.

[0113] At the same time, the diverter 30 is used to divert the air at the outlet section of the air outlet channel 15 to prevent air from gathering at the outlet section, thereby preventing air from forming a vortex in the air outlet channel 15, thereby reducing the vortex noise generated at the outlet section.

[0114] In some examples, the diverter portion 30 includes one or more spaced-apart diverter members 31, one end of each diverter member 31 extends from the outlet of the air outlet channel 15 into the air outlet channel 15, and the multiple diverter members 31 divide the air outlet channel 15 into multiple diverter channels 153 to divert the air at the outlet section of the air outlet channel 15 so that the air at the outlet section of the air outlet channel 15 can flow out from the outlet of the air outlet channel 15 along the corresponding diverter channel 153.

[0115] Among them, by dividing the air outlet channel 15 into multiple diversion channels 153, the air in the air outlet channel 15 can flow from different diversion channels 153 along the corresponding diversion components 31 from the outlet of the diversion channel 153 to the designated area, thereby avoiding air gathering at the outlet section of the air outlet channel 15 and avoiding air from forming vortices at the outlet section of the air outlet channel 15, thereby facilitating the reduction of noise generated in the air outlet channel 15.

[0116] The diverter member 31 includes a first diverter plate 311, a second diverter plate 312 and a connecting plate 313. The first end of the first diverter plate 311 is arranged in the air outlet channel 15, and the second end of the first diverter plate 311 extends to the outlet of the air outlet channel 15. The air near the first diverter plate 311 can flow along the first diverter plate 311 to the outlet of the air outlet channel 15 to guide the flow direction of the air at the air outlet section of the air outlet channel 15.

[0117] The first end of the second diverter plate 312 is disposed in the air outlet channel 15, and the second end of the second diverter plate 312 extends to the outlet of the air outlet channel 15. The air near the second diverter plate 312 can flow along the second diverter plate 312 to the outlet of the air outlet channel 15 to guide the flow direction of the air at the air outlet section of the air outlet channel 15.

[0118] The first end of the second diverter plate 312 is connected to the first end of the first diverter plate 311, and the two ends of the connecting plate 313 are respectively connected to the second end of the first diverter plate 311 and the second end of the second diverter plate 312, so as to connect the first diverter plate 311, the second diverter plate 312 and the connecting plate 313 as a whole. This arrangement is convenient for increasing the structural strength of the diverter 31, and then for improving the service life of the diverter 31 and the service life of the fan assembly.

[0119] In some examples, such as Fig.11 As shown, the first splitter plate 311 and the second splitter plate 312 respectively form arc-shaped plates extending along the circumference of the wind wheel 21, and the connecting plate 313 forms a straight plate, so that the first splitter plate 311 and the second splitter plate 312 can fully guide the air at the air outlet section in the air outlet channel 15.

[0120] In some embodiments, the wind wheel 21 is a centrifugal wind wheel 21. Driven by the wind wheel 21, the air in the accommodating chamber 13 flows along the circumference of 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, so that the first diverter plate 311 and the second diverter plate 312 are respectively formed as arc-shaped plates extending along the circumference of the wind wheel 21 to avoid the first diverter plate 311 and the second diverter plate 312 from excessively hindering the flow of air, so that the air flowing to the first diverter plate 311 and the second diverter plate 312 can flow out from the outlet of the air outlet channel 15 along the first diverter plate 311 and the second diverter plate 312 at a steady speed.

[0121] Among them, the diversion part 30 has multiple diversion parts 31, and the diversion part 30 includes a first diversion part 301 and a second diversion part 302. The first diversion part 301 and the second diversion part 302 divide the air outlet section of the air outlet channel 15 close to the outlet into multiple diversion channels 153. The air at the air outlet section in the air outlet channel 15 can flow evenly to the designated area along the multiple diversion channels 153 to avoid the air at the air outlet section of the air outlet channel 15 from gathering together.

[0122] Among them, the second end of the first diverter plate 311 and the second end of the second diverter plate 312 are spaced apart to control the size of the outlet of the air outlet channel 15, thereby balancing the size of the inlet of the diverter channel 153 and the size of the outlet of the diverter channel 153, avoiding excessive difference in the cross-sectional area of ​​the inlet of the diverter channel 153 and the cross-sectional area of ​​the outlet of the diverter channel 153, thereby allowing the air to be evenly distributed in the diverter channel 153, and allowing the air at the outlet section of the air outlet channel 15 to flow evenly along multiple diverter channels 153 to the designated area, so as to introduce uniform fresh air into the designated area.

[0123] In addition, the connecting plate 313 , the first diverter plate 311 and the second diverter plate 312 define a closed cavity to prevent the wind in the air outlet channel 15 from gathering between the first diverter plate 311 , the second diverter plate 312 and the connecting plate 313 , thereby affecting the flow of air in the air outlet channel 15 .

[0124] In some embodiments, Fig.11 As shown, the fan assembly includes a guide plate 43, which is arranged in the air outlet channel 15. The guide plate 43 is located upstream of the diverter portion 30. The guide plate 43 can guide the flow direction of the upstream air in the air outlet channel 15, so that the air in the air outlet channel 15 can smoothly flow along the guide plate 43 to the diverter portion 30 and flow from the outlet of the air outlet channel 15 along the diverter portion 30 to the designated area.

[0125] The guide plate 43 is arranged in the air outlet channel 15, and the guide plate 43 is located upstream of the diversion portion 30. The guide plate 43 can guide the flow direction of the upstream air in the air outlet channel 15, so that the air in the air outlet channel 15 can smoothly flow along the guide plate 43 to the diversion portion 30 and flow from the outlet of the air outlet channel 15 to the designated area along the diversion portion 30.

[0126] 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.

[0127] 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.

[0128] In some examples, such as Figure 6As shown, 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.

[0129] 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.

[0130] 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 .

[0131] The fresh air module 8 of the air conditioner according to the embodiment of the present invention, by utilizing the fan assembly according to the above-mentioned embodiment of the present invention, extends the length of the air outlet channel 15, thereby facilitating prolonging the time for sound to be transmitted in the air outlet channel 15 to consume the energy in the sound, thereby being able to reduce the noise transmitted to the designated area.

[0132] 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 8 according to the above embodiment of the present invention.

[0133] The air conditioner according to the embodiment of the present invention, by utilizing the fan assembly according to the above-mentioned embodiment of the present invention, extends the length of the air outlet channel 15, thereby facilitating prolonging the time for sound to be transmitted in the air outlet channel 15 to consume the energy in the sound, thereby being able to reduce the noise transmitted to the designated area.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] 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; The shell includes a shell body and a volute tongue, the shell body has a first side wall and a second side wall arranged opposite to each other, the outlet of the air outlet channel is arranged at the top of the shell, the first end of the volute tongue is connected to the first side wall and the second end extends toward the second side wall, and the distance between the second end of the volute tongue and the second side wall is smaller than the distance between the second end of the volute tongue and the first side wall.

2. The fan assembly according to claim 1, characterized in that: It also includes at least one sound absorbing member, which is located on the outside of at least one wall portion of the air outlet channel, and the wall portion has air holes.

3. The fan assembly according to claim 2, characterized in that: The sound absorbing member is disposed on the outer sides of at least two opposite or adjacent wall portions of the air outlet channel.

4. The fan assembly according to claim 2, characterized in that: The shell further defines at least one sound absorbing cavity, which is located outside of at least one wall portion of the air outlet channel and is connected to the air outlet channel through the air hole, and the sound absorbing member is arranged in the sound absorbing cavity.

5. The fan assembly according to claim 4, characterized in that: The shell includes at least one soundproof cover, the shell body defines the accommodating cavity, the air inlet channel and the air outlet channel, and the soundproof cover is arranged outside the shell body and cooperates with the shell body to jointly define the sound absorption cavity.

6. The fan assembly according to claim 5, characterized in that: The portion of the shell body facing the soundproof cover has a grille structure, and the grille structure separates the air outlet channel and the sound absorption cavity; Wherein, the grille structure defines a plurality of air holes, and the plurality of air holes connect the sound absorbing cavity and the air outlet channel.

7. The fan assembly according to claim 5, characterized in that: A first mounting lug is disposed on the outer side of the shell body, a second mounting lug is disposed on the outer side of the soundproof cover, the shell body and the soundproof cover are connected by fasteners, and the fasteners are passed through the first mounting lug and the second mounting lug.

8. The fan assembly according to claim 5, characterized in that: The housing body includes 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 cavity and the air outlet channel; Wherein, the sound insulation cover includes at least two and includes a first sound insulation cover and a second sound insulation cover, a first sound absorption cavity is defined between the first sound insulation cover and the outer side of the first volute, a second sound absorption cavity is defined between the second sound insulation cover and the second volute, and the sound absorbing element is provided in both the first sound absorption cavity and the second sound absorption cavity.

9. The fan assembly according to claim 8, characterized in that: One of the first soundproof cover and the first volute has a first limiting step surrounding the first sound absorbing cavity and the other has a first mating step mating with the first limiting step; and / or one of the second soundproof cover and the second volute has a second limiting step surrounding the second sound absorbing cavity and the other has a second mating step mating with the second limiting step.

10. The fan assembly according to claim 8, characterized in that: The shell body further includes an air inlet shell. The air inlet shell and the first sound insulation cover are both arranged on the outside of the first volute, and the air inlet shell and the first volute define the air inlet channel.

11. The fan assembly according to claim 10, characterized in that: The air inlet shell and the first sound insulation cover are integrally formed.

12. The fan assembly according to any one of claims 2 to 11, characterized in that: The air outlet channel comprises an air outlet section whose cross-sectional area gradually increases along the air flow direction, and at least a part of the sound absorbing member is arranged on the outer side of the wall portion of the air outlet section.

13. The fan assembly according to any one of claims 1 to 11, characterized in that: The first side wall and the second side wall are arranged opposite to each other in a first direction, and the first direction is perpendicular to the up-down direction; The air outlet channel is located above the accommodating cavity and extends along the first direction or along the circumference of the accommodating cavity. The second end of the volute tongue and the second side wall define an inlet of the air outlet channel.

14. The fan assembly according to any one of claims 1 to 11, characterized in that: The first side wall and the second side wall are arranged opposite to each other in the up-down direction and the first side wall is located above the second side wall; The air outlet channel is located at one side of the accommodating cavity and extends in an up-down direction or a circumferential direction of the accommodating cavity, and an outlet of the air outlet channel is arranged on the first side wall.

15. 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 14, and the inlet of the air inlet channel is a fresh air inlet; A filter element is arranged in the air inlet passage.

16. An air conditioner, characterized in that: It comprises a fan assembly according to any one of claims 1 to 14; or, it comprises a fresh air module of an air conditioner according to claim 15.

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