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 first side wall, 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 the first aspect of the present invention, the fan assembly comprises: a housing, the housing defines a housing cavity, an air inlet channel and an air outlet channel, the housing cavity 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 housing cavity, and the motor is connected to the wind wheel to drive the wind wheel to rotate; wherein the housing comprises a housing body and a volute tongue, the housing body has a first side wall and a second side wall arranged oppositely, the outlet of the air outlet channel is arranged at the first side wall, 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, the accommodating cavity and the air outlet channel are connected via an air outlet, and the air outlet is located between the second end of the volute tongue and the second side wall.

[0009] According to some embodiments of the present invention, the second end of the volute tongue extends to a side of the rotation axis of the wind wheel facing away from the first side wall.

[0010] According to some embodiments of the present invention, a distance between the second end of the volute tongue and the second side wall is smaller than a distance between the second end of the volute tongue and the first side wall.

[0011] According to some embodiments of the present invention, a plurality of spaced-apart cavities are provided in the volute tongue.

[0012] According to some embodiments of the present invention, the snail tongue includes: a first plate portion, which extends along the circumference of the wind wheel and has one end connected to the first side wall; a second plate portion, which extends along the circumference of the wind wheel and has one end connected to the first side wall and the other end connected to the other end of the first plate portion in a circular arc transition; and a plurality of connecting ribs, which are arranged at intervals in the circumference of the wind wheel and each of which is connected between the first plate portion and the second plate portion.

[0013] According to some embodiments of the present invention, the fan assembly further includes: a diverter portion, which is disposed in the air outlet channel to divide an air outlet section of the air outlet channel close to its outlet into a plurality of diverter flow channels.

[0014] According to some optional embodiments of the present invention, the diverter portion includes one or more diverter elements arranged at intervals, and one end of each of the diverter elements extends from an outlet of the air outlet channel into the air outlet channel.

[0015] According to some specific embodiments of the present invention, in the direction of air flow, the cross-sectional area of ​​the air outlet channel gradually increases, and the diverter includes: a first diverter plate, a first end of the first diverter plate is arranged in the air outlet channel and a second end of the first diverter plate extends to the outlet of the air outlet channel; a second diverter plate, a first end of the second diverter plate is arranged in the air outlet channel and connected to the first end of the first diverter plate, and the second end of the second diverter plate extends to the outlet of the air outlet channel; a connecting plate, the two ends of the connecting plate are respectively connected to the second end of the first diverter plate and the second end of the second diverter plate.

[0016] In some embodiments, the first splitter plate and the second splitter plate are respectively formed into arc-shaped plates extending along the circumference of the wind wheel, and the connecting plate is formed into a straight-line plate.

[0017] According to some embodiments of the present invention, the fan assembly further includes: a guide portion, wherein the guide portion is disposed in the air outlet channel and close to an inlet position of the air outlet channel.

[0018] According to some optional embodiments of the present invention, the guide portion includes one guide plate; or, the guide portion includes a plurality of guide plates and the plurality of guide plates are arranged at intervals in a width direction of the air outlet channel.

[0019] According to some optional embodiments of the present invention, a wind gap is formed between the guide plate and the diverter, and in a direction perpendicular to the wind wheel axis, a projection of the wind gap is located between the first end and the second end of the volute tongue.

[0020] According to some embodiments of the present invention, the shell further includes: a first sound insulation cover, which is disposed outside the shell body and cooperates with the shell body to jointly define a first chamber connected to the air outlet channel; a second sound insulation cover, which is disposed on a side of the shell body facing away from the first sound insulation cover and cooperates with the shell body to jointly define a second chamber connected to the air outlet channel; wherein a first sound absorbing member is provided in the first chamber, and a second sound absorbing member is provided in the second chamber.

[0021] According to some optional embodiments of the present invention, the first chamber, the air outlet channel and the second chamber are arranged in a direction parallel to the axial direction of the wind wheel, and at least a portion of the first chamber and / or the second chamber faces the air outlet channel.

[0022] According to some optional embodiments of the present invention, the first chamber is connected to the air outlet channel through a plurality of first air holes, and the second chamber is connected to the air outlet channel through a plurality of second air holes.

[0023] According to some optional embodiments of the present invention, a portion of the shell body facing the first sound insulation cover protrudes toward the first sound insulation cover to form a convex portion, the convex portion is located at one end of the wind wheel in the axial direction and the convex portion defines the air inlet channel.

[0024] In some embodiments, the first sound absorbing member is located on a side of the protrusion.

[0025] 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, wherein the inlet of the air inlet channel is a fresh air inlet; and a filter element, wherein the filter element is arranged in the air inlet channel.

[0026] 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.

[0027] According to a third aspect of the present invention, an air conditioner is provided. The air conditioner includes the fan assembly according to the embodiment of the first aspect of the present invention; or includes the fresh air module according to the embodiment of the second aspect of the present invention.

[0028] 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.

[0029] 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

[0030] 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:

[0031] Figure 1 is a structural schematic diagram of a fresh air module according to an embodiment of the present invention.

[0032] Figure 2 is a structural exploded view of a fresh air module according to an embodiment of the present invention.

[0033] Figure 3 is a cross-sectional view of a fresh air module according to an embodiment of the present invention.

[0034] Figure 4 Schematic diagram of a partial structure of a fan assembly according to an embodiment of the present invention.

[0035] Figure 5 Schematic diagram of a partial structure of a fan assembly according to an embodiment of the present invention.

[0036] Figure 6 yes Figure 5 A magnified view of the structure in the middle.

[0037] Figure 7 is a schematic structural diagram of a second shell according to an embodiment of the present invention.

[0038] Reference numerals: housing 10, air outlet 101,

[0039] Shell body 11, first side wall 111, second side wall 112, first grille portion 113, second grille portion 114, convex portion 115, first shell portion 116, first lug 1161, second shell portion 117, second lug 1171,

[0040] The snail tongue 12, the first plate portion 121, the second plate portion 122, the connecting rib 123, the cavity 124,

[0041] Accommodating chamber 13, air inlet channel 14, first air inlet chamber 141, second air inlet chamber 142, air outlet channel 15,

[0042] The first chamber 16, the first air hole 161, the second chamber 17, the second air hole 171,

[0043] The first soundproof cover 181, the second soundproof cover 182,

[0044] The flow channel 19, the first flow channel 191, the second flow channel 192, the third flow channel 193,

[0045] Wind wheel 21, motor 22,

[0046] Dividing part 30, first diverting member 301, second diverting member 302,

[0047] Divider 31, first diverter plate 311, second diverter plate 312, connecting plate 313,

[0048] The guide part 40, the guide plate 41,

[0049] A first sound absorbing member 51, a second sound absorbing member 52, a wind passage notch 53,

[0050] Fresh air module 8 , fresh air inlet 81 , filter element 82 . DETAILED DESCRIPTION

[0051] 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.

[0052] The fan assembly according to the embodiment of the present invention is described below with reference to the accompanying drawings.

[0053] like Figure 1-Figure 7 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 .

[0054] 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, drive the air in the accommodating chamber 13 to flow into the air outlet channel 15 and flow along the air outlet channel 15 to a designated area, so as to guide the air to the designated area.

[0055] Among them, the shell body 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 on the first side wall 111, 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.

[0056] The distance between the second end of the snail tongue 12 and the second side wall 112 is smaller than the distance between the second end of the snail tongue 12 and the first side wall 111, so that the air outlet 101 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 air outlet 101 can be set away from the outlet of the air outlet channel 15, thereby extending the length of 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 setting the air outlet 101 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 and reducing the noise transmitted from the wind wheel 21 to the designated area.

[0058] 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.

[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 7 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 5 As shown, the accommodating cavity 13 and the air outlet channel 15 are connected through the air outlet 101, and the air outlet 101 is located between the second end of the volute tongue 12 and the second side wall 112. This arrangement is convenient for increasing the distance between the air outlet 101 and the outlet of the air outlet channel 15, thereby increasing the length of the air outlet channel 15, extending the time for sound to pass through the air outlet channel 15, and thereby reducing the noise transmitted from the outlet of the air outlet channel 15.

[0062] like Figure 2 , Figure 5 As shown, in the present embodiment, the first side wall 111 and the second side wall 112 are side walls of the shell body 11 that are relatively arranged along the front-to-back direction, the first side wall 111 is the front side wall of the shell body 11, the second side wall 112 is the rear side wall of the shell body 11, the outlet of the air outlet channel 15 is arranged on the front side wall of the shell body 11, the volute tongue 12 extends along the circumference of the wind wheel 21, the rear end of the volute tongue 12 and the rear side wall of the shell body 11 define an air outlet 101, that is, driven by the wind wheel 21, the air in the accommodating chamber 13 flows along the circumference of the wind wheel 21 and flows from the air outlet 101 at the rear end of the volute tongue 12 to the air outlet channel 15, and the air in the air outlet channel 15 flows forward along the front-to-back direction toward the outlet of the air outlet channel 15.

[0063] The air outlet 101 is arranged at the rear end of the volute tongue 12, and the outlet of the air outlet channel 15 is located at the front end of the air outlet channel 15. By extending the rear end of the volute tongue 12 toward the rear side wall of the shell body 11, the length of the air outlet channel 15 can be extended, thereby extending the time for sound to pass through the air outlet channel 15, and then consuming the energy in the sound during the transmission process to reduce the noise transmitted from the outlet of the air outlet channel 15.

[0064] In some embodiments of the present invention, Figure 5 As shown, the second end of the volute tongue 12 extends to the side of the rotating shaft of the wind wheel 21 facing away from the first side wall 111, so as to control the length of the air outlet channel 15, so that the length of the air outlet channel 15 is at least greater than or equal to the radial length of the wind wheel 21, and then when the noise at the wind wheel 21 is transmitted to the designated area, when the sound is transmitted to the designated area through the air outlet channel 15, the energy in the sound can be consumed, so as to reduce the noise transmitted to the designated area.

[0065] like Figure 5 As shown, in this embodiment, the rotating shaft of the wind wheel 21 extends in the left-right direction, the first side wall 111 is the front side wall of the shell body 11, the second side wall 112 is the rear side wall of the shell body 11, the first end of the volute tongue 12 is connected to the front side wall of the shell body 11, and the second end of the volute tongue 12 extends backward along the circumference of the wind wheel 21 to the rear end of the rotating shaft of the wind wheel 21. The second end of the volute tongue 12 and the rear side wall of the shell body 11 define an air outlet 101, and the air in the accommodating cavity 13 can flow into the air outlet channel 15 through the air outlet 101.

[0066] The second end of the volute 12 is extended to the rear end of the rotating shaft of the wind wheel 21, so that there is a certain distance between the air outlet 101 and the outlet of the air outlet channel 15 in the front-to-back direction. When the sound at the wind wheel 21 is transmitted from the outlet of the air outlet channel 15 to the designated area, the sound must first pass through the air outlet channel 15 to consume the energy in the sound, thereby reducing the noise transmitted from the wind wheel 21 to the designated area.

[0067] In some embodiments of the present invention, Figure 6 As shown, a plurality of spaced cavities 124 are provided in the volute tongue 12. Such a configuration is convenient for increasing the sound insulation capability of the volute tongue 12, and preventing the noise in the accommodating cavity 13 from being easily transmitted to the air outlet channel 15 through the volute tongue 12, thereby extending the path of sound transmission, consuming the energy of sound, and reducing the noise transmitted to the designated area by the wind wheel 21.

[0068] In some optional embodiments of the present invention, Figure 6 As shown, the volute tongue 12 includes a first plate portion 121, a second plate portion 122 and a plurality of connecting ribs 123, the first plate portion 121 extends along the circumference of the wind wheel 21, one end of the first plate portion 121 is connected to the first side wall 111, and the second plate portion 122 extends along the circumference of the wind wheel 21. The volute tongue 12 divides the space in the shell body 11 into a accommodating chamber 13 and an air outlet channel 15, so that the first plate portion 121 and the second plate portion 122 extend along the circumference of the wind wheel 21, so that the first plate portion 121 and the second plate portion 122 can guide the flow direction of the air in the accommodating chamber 13 or the air outlet channel 15, thereby avoiding turbulent flow of air in the accommodating chamber 13 or the air outlet channel 15.

[0069] Among them, one end of the second plate portion 122 is connected to the first side wall 111, and the other end is connected to the other end of the first plate portion 121 in a circular arc transition, so that when the air in the accommodating cavity 13 flows to the air outlet channel 15, the air can flow smoothly to the air outlet channel 15 along the arc, avoiding air from gathering at the connection between the first plate portion 121 and the second plate portion 122, thereby avoiding affecting the flow of air.

[0070] Among them, multiple connecting ribs 123 are arranged at intervals in the circumferential direction of the wind wheel 21, and each connecting rib 123 is connected between the first plate portion 121 and the second plate portion 122 to divide the space between the first plate portion 121 and the second plate portion 122 into multiple cavities 124, thereby making the volute tongue 12 have a sound insulation effect while increasing the structural strength of the volute tongue 12.

[0071] like Figure 5 , Figure 6 As shown, in this embodiment, the accommodating cavity 13 is located at the lower side of the air outlet channel 15, the volute tongue 12 extends from front to rear along the circumference of the wind wheel 21, the first plate portion 121 is located at the lower side of the second plate portion 122, the first plate portion 121 and the lower side wall of the shell body 11 jointly define the accommodating cavity 13, and the second plate portion 122 and the upper side wall of the shell body 11 jointly define the air outlet channel 15.

[0072] Among them, the rear end of the volute tongue 12 and the rear side wall of the shell body 11 define an air outlet 101, and the air outlet 101 connects the accommodating chamber 13 and the air outlet channel 15. The rear end of the first plate portion 121 and the rear end of the second plate portion 122 are connected in an arc transition so that when the air in the accommodating chamber 13 flows to the air outlet channel 15 through the air outlet 101, the air can flow smoothly into the air outlet channel 15, thereby avoiding air gathering at the connection between the first plate portion 121 and the second plate portion 122.

[0073] In some embodiments, the first plate portion 121, the second plate portion 122 and the connecting rib 123 form a closed cavity 124 to prevent the air in the accommodating cavity 13 and the air outlet channel 15 from entering the cavity 124 and affecting the flow of air in the accommodating cavity 13 and the air outlet channel 15, so that the fan assembly can stably transport air to the designated area.

[0074] In some embodiments of the present invention, Figure 4 As shown, the fan assembly also 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 19, 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.

[0075] 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.

[0076] 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.

[0077] In some optional embodiments of the present invention, Figure 4 As shown, the diverter portion 30 includes one or more diverter members 31 arranged at intervals, and one end of each diverter member 31 extends from the outlet of the air outlet channel 15 into the air outlet channel 15. The multiple diverter members 31 divide the air outlet channel 15 into multiple diverter channels 19 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 19.

[0078] Among them, by dividing the air outlet channel 15 into multiple diversion channels 19, the air in the air outlet channel 15 can flow from different diversion channels 19 along the corresponding diversion components 31 from the outlet of the diversion channel 19 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.

[0079] In some specific embodiments of the present invention, Figure 5 , Figure 6 As shown, in the direction of air flow, the cross-sectional area of ​​the air outlet channel 15 gradually increases. This arrangement 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.

[0080] 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.

[0081] 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.

[0082] 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 member 31, and then for improving the service life of the diverter member 31 and the service life of the fan assembly.

[0083] In some embodiments, Figure 6 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.

[0084] 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.

[0085] like Figure 6 As shown, in this embodiment, the connecting plate 313 extends in the up-down direction, the rear end of the first diverter plate 311 is connected to the rear end of the second diverter plate 312, the front end of the first diverter plate 311 and the front end of the second diverter plate 312 are spaced apart in the up-down direction, and the connecting plate 313 is connected to the front end of the first diverter plate 311 and the front end of the second diverter plate 312.

[0086] The diverter portion 30 has a plurality of diverter pieces 31 , including a first diverter piece 301 and a second diverter piece 302 , which separate the outlet section of the outlet channel 15 close to the outlet into a first diverter channel 191 , a second diverter channel 192 and a third diverter channel 193 .

[0087] Specifically, each diverter member 31 has a first diverter plate 311, a second diverter plate 312 and a connecting plate 313. The first diverter plate 311 of the first diverter member 301 and the lower side wall of the air outlet channel 15 define a first diverter channel 191. The second diverter plate 312 of the first diverter member 301 and the first diverter plate 311 of the second diverter member 302 define a second diverter channel 192. The second diverter plate 312 of the second diverter member 302 and the upper side wall of the air outlet channel 15 define a third diverter channel 193.

[0088] The air at the outlet section in the outlet channel 15 can flow evenly to the designated area along the first diversion channel 191 , the second diversion channel 192 and the third diversion channel 193 to avoid the air at the outlet section of the outlet channel 15 from gathering together.

[0089] Among them, the front end of the first diverter plate 311 and the front end of the second diverter plate 312 are spaced apart in the front-to-rear direction to control the size of the outlet of the air outlet channel 15, thereby balancing the size of the inlet of the diverter channel 19 and the size of the outlet of the diverter channel 19, avoiding excessive difference in the cross-sectional area of ​​the inlet of the diverter channel 19 and the cross-sectional area of ​​the outlet of the diverter channel 19, thereby allowing the air to be evenly distributed in the diverter channel 19, and allowing the air at the outlet section of the air outlet channel 15 to flow evenly along multiple diverter channels 19 to the designated area, so as to introduce uniform fresh air into the designated area.

[0090] In addition, the connecting plate 313 , the first diverter plate 311 and the second diverter plate 312 define a closed chamber 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 .

[0091] In some embodiments of the present invention, Figure 5 As shown, the fan assembly also includes a guide portion 40, which is arranged in the air outlet channel 15. The guide portion 40 is close to the inlet position of the air outlet channel 15. The guide portion 40 can guide the air entering the air outlet channel 15, and then can change the direction of air flowing out of the accommodating cavity 13, so that the air can flow along the guide portion 40 in the air outlet channel 15 to the designated area.

[0092] Specifically, when the motor 22 drives the wind wheel 21 to rotate, the wind wheel 21 will drive the air to flow from the air inlet channel 14 to the accommodating chamber 13, and then flow to the air outlet channel 15 along the accommodating chamber 13. When the air flows in the air outlet channel 15, since the wind wheel 21 is arranged in the accommodating chamber 13, the wind wheel 21 cannot directly control the flow direction of the air in the air outlet channel 15. It can only indirectly drive the air in the air outlet channel 15 to flow from the outlet of the air outlet channel 15 to the designated area by driving the air in the accommodating chamber 13 to flow into the air outlet channel 15.

[0093] In this process, the guide portion 40 can guide the flow direction of the air flowing from the accommodating chamber 13 to the air outlet channel 15. The air in the accommodating chamber 13 enters the air outlet channel 15 from the inlet of the air outlet channel 15 and flows along the guide portion 40 in the air outlet channel 15 to the designated area.

[0094] In some optional embodiments of the present invention, the guide portion 40 includes a guide plate 41, which is arranged upstream of the air outlet channel 15 so as to guide the air flowing from the accommodating chamber 13 into the air outlet channel 15 and guide the air to the outlet of the air outlet channel 15, so that the air can flow along the guide portion 40 to the designated area.

[0095] In some embodiments, the fan assembly also includes a diverter portion 30, and the guide portion 40 is located upstream of the diverter portion 30. The guide portion 40 is arranged near the inlet of the air outlet channel 15, and the diverter portion 30 is arranged near the outlet of the air outlet channel 15. The guide portion 40 can guide the air flowing from the accommodating chamber 13 to the air outlet channel 15, and guide the air to the diverter portion 30, so that the air can flow along the diverter portion 30 to the designated area.

[0096] In some other optional embodiments of the present invention, Figure 5 As shown, the guide portion 40 includes a plurality of guide plates 41, 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.

[0097] like Figure 5 As shown, in the present embodiment, the width of the air outlet channel 15 extends in the up-down direction, 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.

[0098] In some embodiments, Figure 6 As shown, the fan assembly also includes a splitter 30, and the guide portion 40 is located upstream of the splitter 30. The guide portion 40 is arranged near the inlet of the air outlet channel 15, and the splitter 30 is arranged near the outlet of the air outlet channel 15. 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 splitter 31. When the wind wheel 21 drives the air in the accommodating cavity 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 splitter 30, and then the air can flow smoothly from the outlet of the air outlet channel 15 to the designated area along the splitter 30.

[0099] In some specific embodiments of the present invention, Figure 5As shown, the guide portion 40 includes a plurality of guide plates 41, and the diverter portion 30 includes a plurality of diverter pieces 31. The plurality of diverter pieces 31 are arranged at intervals in the width direction of the air outlet channel 15, and the plurality of diverter pieces 31 correspond one to one with the plurality of guide plates 41. When the guide portion 40 and the diverter pieces 31 jointly guide the flow of air in the air outlet channel 15, the air in the air outlet channel 15 can flow toward the outlet of the air outlet channel 15 along a certain trajectory, thereby avoiding air turbulence in the air outlet channel 15, and further facilitating the reduction of noise generated in the fan assembly.

[0100] like Figure 5 As shown, in the present embodiment, the width direction of the air outlet channel 15 extends in the up-down direction, a plurality of guide plates 41 are arranged at intervals in the up-down direction, a plurality of diverter members 31 are arranged at intervals in the up-down direction, a plurality of guide plates 41 and a plurality of diverter members 31 correspond one to one in the front-to-back direction, and when the wind wheel 21 rotates and drives the air in the accommodating chamber 13 to flow into the air outlet channel 15, the air flows from bottom to top along the circumference of the wind wheel 21 toward the guide plates 41, and flows along the guide plates 41 to the diverter members 31, and flows along the diverter members 31 from the outlet of the air outlet channel 15 to the designated area.

[0101] Make multiple guide plates 41 and multiple diverter pieces 31 correspond one by one along the front-to-back direction, so that the guide plates 41 can smoothly and evenly guide the air to the diverter pieces 31, avoid air gathering at a certain guide plate 41, avoid multiple air streams colliding with each other, and thus facilitate ensuring the stable flow of air in the air outlet channel 15, and facilitate reducing the generation of noise in the air outlet channel 15.

[0102] In some optional embodiments of the present invention, Figure 5 As shown, one end of each guide plate 41 extends from a position close to the inlet of the air outlet channel 15 into the air outlet channel 15 to fully guide the air entering the air outlet channel 15 from the inlet of the air outlet channel 15, so that the air entering from the inlet of the air outlet channel 15 can flow along the guide plate 41 to the diverter plate, and flow from the outlet of the air outlet channel 15 to the designated area along the diverter plate, so as to ensure the stable flow of air in the air outlet channel 15 and reduce the generation of noise in the air outlet channel 15.

[0103] In some optional embodiments of the present invention, a wind gap 53 is formed between the guide plate 41 and the diverter 31. In the direction perpendicular to the axis of the wind wheel 21, the projection of the wind gap 53 is located between the first end and the second end of the volute tongue 12. This makes it easy to reduce the size of the guide plate 41 and the diverter 31. At the same time, when the air flows through the wind gap 53, the volute tongue 12 can guide the flow direction of the air at the wind gap 53, thereby making it easy to reduce the turbulence generated when the air flows in the air outlet channel 15, so as to ensure that the air flows smoothly in the air outlet channel 15.

[0104] In some embodiments, the outer side of the air outlet channel 15 is covered with a sound absorbing member. When the snail tongue 12 is used to guide the air at the wind gap 53, it is convenient to increase the flow path of the air in the air outlet channel 15 and increase the time for the air to flow in the air outlet channel 15, so that the sound absorbing member can better perform sufficient noise reduction processing on the noise generated in the air outlet channel 15, so as to fully reduce the noise generated in the air outlet channel 15.

[0105] like Figure 5 As shown, in this embodiment, the guide plate 41 and the diverter 31 are spaced apart in the front-to-back direction and jointly define a wind gap 53, the volute tongue is located at the lower side of the wind gap 53, the axial direction of the wind wheel 21 extends in the left-right direction, and in the up-down direction, the projection of the wind gap 53 is located between the first end and the second end of the volute tongue 12, so that the volute tongue 12 can guide the air at the wind gap 53.

[0106] In some embodiments of the present invention, Figure 2 As shown, 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 outside the shell body 11. The first sound insulation cover 181 cooperates with the shell body 11 to jointly define a first chamber 16. The first chamber 16 is connected to the air outlet channel 15. A first sound absorbing member 51 is arranged in the first chamber 16. When the sound is transmitted to the designated area through the air outlet channel 15, the noise in the air outlet channel 15 can enter the first chamber 16. The first sound absorbing member 51 can buffer the vibration in the air, thereby absorbing the energy in the sound and reducing the noise transmitted to the designated area.

[0107] The second sound insulation cover 182 is arranged on the side of the shell body 11 facing away from the first sound insulation cover 181. The second sound insulation cover 182 cooperates with the shell body 11 to jointly define a second chamber 17. The second chamber 17 is connected to the air outlet channel 15. A second sound absorbing member 52 is arranged in the second chamber 17. When the sound is transmitted to the designated area through the air outlet channel 15, the noise in the air outlet channel 15 can enter the second chamber 17. The second sound absorbing member 52 can buffer the vibration in the air, thereby absorbing the energy in the sound and reducing the noise transmitted to the designated area.

[0108] In some optional embodiments of the present invention, the first chamber 16, the air outlet channel 15 and the second chamber 17 are arranged in a direction parallel to the axial direction of the wind wheel 21, and the first chamber 16 and the second chamber 17 are located on both sides of the air outlet channel 15, so that the first sound absorbing member 51 in the first chamber 16 and the second sound absorbing member 52 in the second chamber 17 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 to the designated area.

[0109] Among them, at least a part of the first chamber 16 and / or the second chamber 17 is opposite to the air outlet channel 15, so that the sound in the air outlet channel 15 can directly enter the first chamber 16 and the second chamber 17, so as to improve the efficiency of the first sound absorbing member 51 and the second sound absorbing member 52 in absorbing sound, so as to fully reduce the noise in the air outlet channel 15.

[0110] In some embodiments, Figure 3 As shown, the axial direction of the wind wheel 21 extends in the left-right direction, at least a portion of the first chamber 16 faces the air outlet channel 15 in the left-right direction, and at least a portion of the second chamber 17 faces the air outlet channel 15 in the left-right direction. In this way, the sound generated in the air outlet channel 15 can directly enter the first chamber 16 and the second chamber 17 in the left-right direction, so that the first sound absorbing member 51 and the second sound absorbing member 52 can quickly and evenly absorb the energy of the sound in the air outlet channel 15, so as to quickly and fully reduce the noise in the air outlet channel 15.

[0111] In some embodiments, the first sound absorbing member 51 and the second sound absorbing member 52 are made of flexible materials such as cotton. The sound in the air outlet channel 15 can enter the first chamber 16 and the second chamber 17. The first sound absorbing member 51 and the second sound absorbing member 52 in the first chamber 16 and the second chamber 17 can buffer the vibration in the air, thereby reducing noise.

[0112] At the same time, the first sound absorbing member 51 and the second sound absorbing member 52 are arranged in the first chamber 16 and the second chamber 17 to avoid the first sound absorbing member 51 and the second sound absorbing member 52 affecting the flow of air in the air outlet channel 15, avoiding affecting the flow rate of air in the air outlet channel 15 and affecting the air output of the fan assembly.

[0113] In some optional embodiments of the present invention, the first chamber 16 is connected to the air outlet channel 15 through a plurality of first air holes 161, and the sound in the air outlet channel 15 can enter the first chamber 16 through the first air holes 161. The first sound absorbing member 51 in the first chamber 16 can buffer the vibration in the air, that is, absorb the energy of the sound in the air to reduce the noise transmitted from the outlet of the air outlet channel 15 to the designated area.

[0114] The second chamber 17 is connected to the air outlet channel 15 through a plurality of second air holes 171. The sound in the air outlet channel 15 can enter the second chamber 17 through the second air holes 171. The second sound absorbing member 52 in the second chamber 17 can buffer the vibration in the air, that is, absorb the energy of the sound in the air to reduce the noise transmitted from the outlet of the air outlet channel 15 to the designated area.

[0115] like Figure 3As shown, in this embodiment, the first sound insulation cover 181 and the second sound insulation cover 182 are arranged on the left and right sides of the shell body 11, the first sound insulation cover 181 and the left side wall of the shell body 11 define a first chamber 16, the second sound insulation cover 182 and the right side wall of the shell body 11 define a second chamber 17, the air outlet channel 15 is located between the first chamber 16 and the second chamber 17, the air outlet channel 15 extends in the front-to-back direction, the noise generated in the air outlet channel 15 can enter the first chamber 16 from the first air hole 161, and enter the second chamber 17 from the second air hole 171, the first sound absorbing member 51 and the second sound absorbing member 52 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.

[0116] In some specific embodiments of the present invention, Figure 5 , Figure 7 As shown, the shell body 11 includes a first grille portion 113 and a second grille portion 114, and the first grille portion 113 and the second grille portion 114 constitute at least a portion of two opposite side walls of the air outlet channel 15. The first grille portion 113 defines a plurality of first air holes 161, so that the sound in the air outlet channel 15 can enter the first chamber 16 from the plurality of first air holes 161 on the first grille portion 113, and the first sound absorbing member 51 in the first chamber 16 can absorb the energy of the sound in the first chamber 16, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 to the designated area.

[0117] The second grille portion 114 defines a plurality of second air holes 171, and the sound in the air outlet channel 15 can enter the second chamber 17 through the plurality of second air holes 171 on the second grille portion 114. The second sound absorbing member 52 in the second chamber 17 can absorb the energy of the sound in the second chamber 17, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 to the designated area.

[0118] In some embodiments, the first grille portion 113 constitutes the left side wall of the air outlet channel 15, and the second grille portion 114 constitutes the right side wall of the air outlet channel 15. The sound in the air outlet channel 15 can enter the first chamber 16 to the left, and the first sound absorbing member 51 can absorb the energy of the incoming sound. The sound in the air outlet channel 15 can enter the second chamber 17 to the right, and the second sound absorbing member 52 can absorb the energy of the incoming sound.

[0119] Among them, the area of ​​the left side wall and the right side wall of the air outlet channel 15 is larger than the area of ​​the upper side wall and the lower side wall of the air outlet channel 15. The first grille portion 113 constitutes the left side wall of the air outlet channel 15, and the second grille portion 114 constitutes the right side wall of the air outlet channel 15, so as to increase the communication area between the first chamber 16 and the air outlet channel 15, and increase the communication area between the second chamber 17 and the air outlet channel 15, so that the sound in the air outlet channel 15 can smoothly enter the first chamber 16 and the second chamber 17, thereby facilitating the improvement of the efficiency of the first sound absorbing member 51 and the second sound absorbing member 52 in absorbing sound, so as to reduce the noise transmitted to the designated area.

[0120] In some examples, in the left-right projection, the first sound absorbing member 51 covers the left side wall of the air outlet channel 15, and the second sound absorbing member 52 covers the right side wall of the air outlet channel 15, so as to increase the contact area between the first sound absorbing member 51, the second sound absorbing member 52 and the air outlet channel 15, so that the first sound absorbing member 51 and the second sound absorbing member 52 can fully absorb the energy of the sound in the air outlet channel 15 to fully reduce the noise in the air outlet channel 15.

[0121] In some embodiments, Figure 5 , Figure 7 As shown, the shell body 11 includes a first shell portion 116 and a second shell portion 117, and the first shell portion 116 and the second shell portion 117 are connected by fasteners. The first shell portion 116 and the second shell portion 117 jointly define a accommodating cavity 13, an air outlet channel 15 and an air inlet channel 14, and the left wall of the first shell portion 116 is the first grille portion 113, and the right wall of the second shell portion 117 is the second grille portion 114.

[0122] A plurality of first lugs 1161 are provided on the front side wall, the rear side wall and the upper side wall of the first shell portion 116, which are away from the accommodating cavity 13. A first fixing hole is provided on the first lug 1161. A plurality of second lugs 1171 are provided on the front side wall, the rear side wall and the upper side wall of the second shell portion 117, which are away from the accommodating cavity 13. A second fixing hole is provided on the second lug 1171. The first fixing hole corresponds to the second fixing hole. Fasteners pass through the first fixing hole and the second fixing hole to fix the first shell portion 116 and the second shell portion 117 together.

[0123] Specifically, when the wind wheel 21 needs to be installed in the accommodating cavity 13, the fasteners can be removed first to separate the first shell portion 116 and the second shell portion 117, and then the wind wheel 21 can be placed on the first shell portion 116 or the second shell portion 117. After the position of the wind wheel 21 is determined, the fasteners are passed through the first fixing holes and the second fixing holes to fix the first shell portion 116 and the second shell portion 117 together, thereby confining the wind wheel 21 in the accommodating cavity 13.

[0124] In some specific embodiments of the present invention, Figure 5 , Figure 6 As shown, the guide portion 40 and the diverter portion 30 are arranged between the first grille portion 113 and the second grille portion 114. In the left-right projection, the guide portion 40 and the diverter portion 30 are arranged to avoid the first air hole 161 on the first grille portion 113, and the guide portion 40 and the diverter portion 30 are arranged to avoid the second air hole 171 on the second grille portion 114, so that the sound in the air outlet channel 15 can smoothly enter the first chamber 16 from the first air hole 161, and the sound in the air outlet channel 15 can smoothly enter the second chamber 17 from the second air hole 171.

[0125] In some examples, in the left and right directions, the first air holes 161 on the first grille portion 113 and the air holes on the second grille portion 114 correspond one to one, so that the guide portion 40 and the diverter portion 30 can avoid the first air hole 161 and the second air hole 171 at the same time, and then when the guide portion 40 and the diverter portion 30 are used to guide the flow direction of the air in the air outlet channel 15, the connection between the air outlet channel 15 and the first chamber 16 is ensured, and the connection between the air outlet channel 15 and the second chamber 17 is ensured, so that the first sound absorbing member 51 and the second sound absorbing member 52 can absorb the energy of the sound in the air outlet channel 15 to reduce the noise transmitted by the fan assembly to the designated area.

[0126] In some optional embodiments of the present invention, Figure 3 As shown, a portion of the shell body 11 facing the first sound insulation cover 181 protrudes toward the first sound insulation cover 181 to form a convex portion 115, and the convex portion 115 is located at one end of the axial direction of the wind wheel 21. The convex portion 115 defines an air inlet channel 14. Driven by the wind wheel 21, air can enter the air inlet channel 14 along the axial direction of the wind wheel 21, enter the accommodating chamber 13 along the air inlet channel 14, enter the air outlet channel 15 from the accommodating chamber 13, and flow to the designated area along the air outlet channel 15.

[0127] Among them, the sound in the air outlet channel 15 can enter the first chamber 16 and the second chamber 17, and the first sound absorbing member 51 and the second sound absorbing member 52 can absorb the vibration generated in the air, and then absorb the energy in the sound, reducing the noise in the air outlet channel 15, so as to reduce the noise transmitted to the designated area.

[0128] like Figure 5 As shown, in the present embodiment, the wind wheel 21 is a centrifugal wind wheel 21. When the motor 22 drives the wind wheel 21 to rotate in the accommodating chamber 13, the wind wheel 21 can drive the air to enter the accommodating chamber 13 along the axial direction of the wind wheel 21, that is, the air in the air inlet channel 14 along the left and right directions. Driven by the wind wheel 21, the air in the accommodating chamber 13 flows along the circumferential direction of the wind wheel 21 and enters the air outlet channel 15, and flows to the designated area along the air outlet channel 15.

[0129] In some embodiments, the first sound absorbing member 51 is located on the side of the protrusion 115, so that the position of the first sound absorbing member 51 is limited by the protrusion 115, so that when the first sound absorbing member 51 is installed, the position of the first sound absorbing member 51 relative to the shell body 11 can be quickly determined according to the position of the protrusion 115, and then the first sound absorbing member 51 can be quickly set in the first chamber 16, so that the sound in the air outlet channel 15 can enter the first chamber 16, and the first sound absorbing member 51 in the first chamber 16 can buffer the vibration of the air, and then absorb the sound, thereby reducing the noise in the air outlet channel 15.

[0130] In addition, the position of the first sound insulation cover 181 can be limited by the protrusion 115, so that when the first sound insulation cover 181 is installed, the position of the first sound insulation cover 181 relative to the shell body 11 can be quickly determined according to the position of the protrusion 115, and then the first sound insulation cover 181 can be set at the specified position, and the first chamber 16 can be defined by the first sound insulation cover 181 and the shell body 11.

[0131] Among them, the first chamber 16 and the second chamber 17 are arranged on opposite sides of the air outlet channel 15. After using the protrusion 115 to determine the position of the first sound insulation cover 181 relative to the shell body 11, the position of the second sound insulation cover 182 relative to the shell body 11 can be quickly determined, and the first sound insulation cover 181 and the second sound insulation cover 182 can be quickly installed to the corresponding positions on the shell body 11.

[0132] In some embodiments, Figure 3 As shown, the lower part of the left side wall of the shell body 11 protrudes to the left to form a protrusion 115, the first chamber 16 is located on the upper side of the protrusion 115, the upper surface of the protrusion 115 forms the lower side wall of the first chamber 16, the first sound absorbing member 51 is arranged on the upper side of the protrusion 115, and the first sound insulation cover 181 is arranged on the left side of the protrusion 115, and the first sound insulation cover 181 and the protrusion 115 jointly define the air inlet channel 14.

[0133] Among them, the inlet of the air outlet channel 15 is arranged at the lower side of the air outlet channel 15. Driven by the wind wheel 21, air can enter the air inlet channel 14 from the inlet of the air inlet channel 14, and flow to the right along the left and right direction to the accommodating chamber 13. Driven by the wind wheel 21, the air in the accommodating chamber 13 can flow to the air outlet channel 15 along the circumference of the wind wheel 21, and flow to the designated area along 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.

[0134] In some examples, such as Figure 3As shown, a filter element 82 is provided in the air inlet channel 14, and the filter element 82 is placed obliquely in the air inlet channel 14. The filter element 82 divides the air inlet channel 14 into a first air inlet chamber 141 and a second air inlet chamber 142. The first air inlet chamber 141 is connected with the inlet of the air inlet channel 14, and the second air inlet chamber 142 is connected with the accommodating chamber 13. The air entering the first air inlet chamber 141 from the inlet of the air inlet channel 14 enters the second air inlet chamber 142 after being filtered by the filter element 82, and enters the accommodating chamber 13 along the second air inlet chamber 142.

[0135] 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 chamber 141, so as to improve the filtering efficiency of the filter element 82 in the first air inlet chamber 141, so that the filter element 82 can fully and quickly filter the air in the first air inlet chamber 141.

[0136] 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.

[0137] The entrance of the air inlet channel 14 is the fresh air inlet 81, 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.

[0138] 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 141 and a second air inlet chamber 142. The first air inlet chamber 141 is connected to the fresh air inlet 81, and the second air inlet chamber 142 is connected to the accommodating chamber 13. The air entering the first air inlet chamber 141 from the fresh air inlet 81 enters the second air inlet chamber 142 after being filtered by the filter element 82, and enters the accommodating chamber 13 along the second air inlet chamber 142.

[0139] Among them, the filter element 82 is placed obliquely in the air inlet channel 14, which is convenient for increasing the contact area between the filter element 82 and the air in the first air inlet chamber 141, so as to improve the filtering efficiency of the filter element 82 on the air in the first air inlet chamber 141, so that the filter element 82 can fully and quickly filter the air in the first air inlet chamber 141.

[0140] 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 .

[0141] 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.

[0142] 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.

[0143] The air conditioner according to the embodiment of the present invention, by utilizing the fan assembly or the fresh air module 8 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.

[0144] 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.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] 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; In which, 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 on the first side wall, 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: The accommodating cavity and the air outlet channel are in communication through an air outlet, and the air outlet is located between the second end of the volute tongue and the second side wall.

3. The fan assembly according to claim 1, characterized in that: The second end of the volute tongue extends to a side of the rotation axis of the wind wheel facing away from the first side wall.

4. The fan assembly according to claim 1, characterized in that: A plurality of cavities arranged at intervals are arranged in the volute tongue.

5. The fan assembly according to claim 1, characterized in that: The snail tongue comprises: A first plate portion, the first plate portion extending along the circumference of the wind wheel and having one end connected to the first side wall; A second plate portion, the second plate portion extends along the circumferential direction of the wind wheel and has one end connected to the first side wall and the other end connected to the other end of the first plate portion in a circular arc transition; A plurality of connecting ribs are arranged at intervals in the circumferential direction of the wind wheel and each of the connecting ribs is connected between the first plate portion and the second plate portion.

6. The fan assembly according to claim 1, characterized in that: Also includes: The flow splitter is arranged in the air outlet channel to divide the air outlet section of the air outlet channel close to its outlet into a plurality of flow splitter channels.

7. The fan assembly according to claim 6, characterized in that: The flow splitter portion includes one or more flow splitters arranged at intervals, and one end of each of the flow splitters extends from the outlet of the air outlet channel into the air outlet channel.

8. The fan assembly according to claim 7, characterized in that: In the direction of air flow, the cross-sectional area of ​​the air outlet channel gradually increases, and the flow divider comprises: a first splitter plate, wherein a first end of the first splitter plate is disposed in the air outlet channel and a second end of the first splitter plate extends to an outlet of the air outlet channel; a second splitter plate, wherein a first end of the second splitter plate is disposed in the air outlet channel and connected to the first end of the first splitter plate, and a second end of the second splitter plate extends to an outlet of the air outlet channel; A connecting plate, two ends of which are respectively connected to the second end of the first manifold plate and the second end of the second manifold plate.

9. The fan assembly according to claim 8, characterized in that: The first splitter plate and the second splitter plate are respectively formed into arc-shaped plates extending along the circumference of the wind wheel, and the connecting plate is formed into a straight-line plate.

10. The fan assembly according to claim 7, characterized in that: Also includes: The guide portion is arranged in the air outlet channel and close to the inlet position of the air outlet channel.

11. The fan assembly according to claim 10, characterized in that: The guide portion includes one guide plate; or, the guide portion includes a plurality of guide plates, and the plurality of guide plates are arranged at intervals in the width direction of the air outlet channel.

12. The fan assembly according to claim 11, characterized in that: A wind gap is formed between the guide plate and the flow divider. In a direction perpendicular to the axis of the wind wheel, a projection of the wind gap is located between the first end and the second end of the volute tongue.

13. The fan assembly according to claim 1, characterized in that: The housing further comprises: A first soundproof cover, which is disposed outside the shell body and cooperates with the shell body to jointly define a first chamber communicated with the air outlet channel; a second soundproof cover, the second soundproof cover being arranged on a side of the shell body facing away from the first soundproof cover and cooperating with the shell body to jointly define a second chamber communicating with the air outlet channel; Wherein, a first sound absorbing member is disposed in the first chamber, and a second sound absorbing member is disposed in the second chamber.

14. The fan assembly according to claim 13, characterized in that: The first chamber, the air outlet channel and the second chamber are arranged in a direction parallel to the axial direction of the wind wheel, and at least a portion of the first chamber and / or the second chamber faces the air outlet channel.

15. The fan assembly according to claim 13, characterized in that: The first chamber is communicated with the air outlet passage through a plurality of first air holes, and the second chamber is communicated with the air outlet passage through a plurality of second air holes.

16. The fan assembly according to claim 13, characterized in that: A portion of the shell body facing the first sound insulation cover protrudes toward the first sound insulation cover to form a convex portion, the convex portion is located at one end of the wind wheel in the axial direction and the convex portion defines the air inlet channel.

17. The fan assembly according to claim 16, characterized in that: The first sound absorbing member is located at a side of the convex portion.

18. 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 17, and the inlet of the air inlet channel is a fresh air inlet; A filter element is arranged in the air inlet passage.

19. An air conditioner, characterized in that: It comprises a fan assembly according to any one of claims 1 to 17; or, it comprises a fresh air module of an air conditioner according to claim 18.

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