Fan assembly, fresh air module of air conditioner and air conditioner

Abstract

The utility model discloses a fan assembly, an air conditioner fresh air module and an air conditioner, the fan assembly comprises a shell, the shell defines a containing cavity, an air inlet channel, an air outlet channel and a first cavity, the first cavity and the air outlet channel are separated through a first side wall and are communicated through a first air hole, and a first sound absorption piece is arranged in the first cavity; a wind wheel and a motor; the air outlet channel is provided with an air guide part, the air guide part and the first side wall are oppositely arranged, and the air guide part gradually inclines and extends in the direction close to the first side wall from an inlet of the air outlet channel to an outlet of the air outlet channel. According to the fan assembly provided by the embodiment of the utility model, the air guide part is arranged and is used for guiding the flow direction of the air, so that at least part of the air in the air outlet channel flows into the first cavity, the first sound absorption piece in the first cavity is fully used for reducing the noise in the air outlet channel, and a better silencing effect is achieved; and the noise transmitted to the designated area by the fan assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular, to a fan assembly, a fresh air module of an air conditioner, and an air conditioner. Background Art

[0002] In the related art, a fan 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 Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a fan assembly. By providing a wind guiding part, the wind guiding part is used to guide the air flow direction, so that at least part of the air in the air outlet channel flows into the first chamber, so as to make full use of the first sound absorbing member in the first chamber to reduce the noise in the air outlet channel, achieve a better sound absorption effect, and further reduce the noise transmitted by the fan assembly to the designated area.

[0004] The utility model also provides an air conditioner having the above-mentioned fan assembly.

[0005] The fan assembly according to the first aspect embodiment of the utility model includes: a housing, the housing defining a receiving chamber, an air inlet channel, an air outlet channel, and a first chamber, the receiving chamber communicating between the air inlet channel and the air outlet channel, the first chamber being separated from the air outlet channel by a first side wall and communicating with the air outlet channel through a first air hole, and a first sound absorbing member being provided in the first chamber; a wind wheel and a motor, the wind wheel being rotatably provided in the receiving chamber, and the motor being connected to the wind wheel to drive the wind wheel to rotate; wherein, the air outlet channel has a wind guiding part and the wind guiding part is disposed opposite to the first side wall, and the wind guiding part extends obliquely gradually towards the direction close to the first side wall from the inlet to the outlet of the air outlet channel.

[0006] The fan assembly according to the embodiment of the utility model guides the air flow direction by providing a wind guiding part, so that at least part of the air in the air outlet channel flows into the first chamber, so as to make full use of the first sound absorbing member in the first chamber to reduce the noise in the air outlet channel, achieve a better sound absorption effect, and further reduce the noise transmitted by the fan assembly to the designated area.

[0007] In addition, the fan assembly according to the above embodiment of the utility model may further have the following additional technical features:

[0008] According to some embodiments of the present utility model, the air outlet channel further has a second side wall, the second side wall is disposed opposite to the first side wall, one side of the second side wall facing the air outlet channel has a first surface and the air guiding portion, the first surface and the air guiding portion are arranged in the air outlet direction and the first surface is located upstream and / or downstream of the air guiding portion, and the air guiding portion is inclined with respect to the first surface.

[0009] According to some alternative embodiments of the present utility model, the first surface is perpendicular to the axial direction of the wind wheel, and the included angle between the air guiding portion and the plane where the first surface is located is 10° to 40°.

[0010] According to some embodiments of the present utility model, the first air holes are provided on the first side wall, and the axial directions of at least some of the first air holes extend obliquely toward the first chamber in the air outlet direction.

[0011] According to some embodiments of the present utility model, the air outlet channel further has a second side wall, the second side wall is disposed opposite to the first side wall; one side of the first side wall facing the air outlet channel has an extension portion, the extension portion and the air guiding portion are disposed opposite to each other in a first direction, and the extension portion extends obliquely away from the second side wall gradually from the inlet to the outlet of the air outlet channel.

[0012] According to some alternative embodiments of the present utility model, the extending direction of the air guiding portion is parallel to the extending direction of the extension portion; and / or, the first direction is the axial direction of the wind wheel.

[0013] According to some alternative embodiments of the present utility model, the housing further defines a second chamber, the air outlet channel and the second chamber are separated by the second side wall and are communicated through a second air hole, a second sound absorbing member is provided in the second chamber, and the air guiding portion is a part of the second side wall.

[0014] According to some specific embodiments of the present utility model, the second air holes are provided on the second side wall, and the axial directions of at least some of the second air holes extend obliquely toward the second chamber in the air outlet direction.

[0015] In some embodiments, in the first direction, the thickness of the first sound absorbing member is greater than the thickness of the first chamber, and the thickness of the second sound absorbing member is greater than the thickness of the second chamber.

[0016] In some examples, the first sound-absorbing member and the second sound-absorbing member are sound-absorbing cotton. In the first direction, the thickness of the first chamber is D1, and the thickness of the first sound-absorbing member when not under extrusion is 2D1 to 2.2D1; and / or, in the first direction, the thickness of the second chamber is D2, and the thickness of the second sound-absorbing member when not under extrusion force is 2D2 to 2.2D2.

[0017] According to some embodiments of the present invention, the air guiding portion is disposed near the inlet of the air outlet passage.

[0018] According to a second aspect embodiment of the present invention, a fresh air module of an air conditioner is provided. The fresh air module of the air conditioner includes the fan assembly according to the embodiment of the first aspect of the present invention, and the inlet of the air inlet passage is a fresh air inlet; a filter member disposed in the air inlet passage.

[0019] For the fresh air module of the air conditioner according to the embodiment of the present invention, by using the fan assembly according to the embodiment of the first aspect of the present invention, by providing an air guiding portion, the air guiding portion is used to guide the air flow direction, so that at least part of the air in the air outlet passage flows into the first chamber, so as to make full use of the first sound-absorbing member in the first chamber to reduce the noise in the air outlet passage, achieve a better sound absorption effect, and reduce the noise transmitted from the fresh air module to the designated area.

[0020] According to a third aspect embodiment 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 of the air conditioner according to the embodiment of the second aspect of the present invention.

[0021] For the air conditioner according to the embodiment of the present invention, by using the fresh air module of the air conditioner according to the embodiment of the second aspect of the present invention, by providing an air guiding portion, the air guiding portion is used to guide the air flow direction, so that at least part of the air in the air outlet passage flows into the first chamber, so as to make full use of the first sound-absorbing member in the first chamber to reduce the noise in the air outlet passage, achieve a better sound absorption effect, and reduce the noise transmitted from the air conditioner to the designated area.

[0022] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. Description of the Drawings

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

[0024] Figure 1It is a schematic structural diagram of the fresh air module according to an embodiment of the present invention in one direction;

[0025] Figure 2 It is a schematic structural diagram of the fresh air module according to an embodiment of the present invention in another direction;

[0026] Figure 3 It is a cross-sectional view of the fresh air module according to an embodiment of the present invention in one direction;

[0027] Figure 4 It is a cross-sectional view of the fresh air module according to an embodiment of the present invention in another direction;

[0028] Figure 5 It is a cross-sectional view of the fresh air module according to an embodiment of the present invention in another direction.

[0029] Reference numerals: fresh air module 1, housing 10, accommodation cavity 101, air inlet channel 102, first air inlet cavity 1021, second air inlet cavity 1022, fresh air inlet 1023, first chamber 11, second chamber 12,

[0030] air outlet channel 20, first air hole 201, second air hole 202, inlet 203, outlet 204,

[0031] first side wall 21, extension part 211, second surface 212, second side wall 22, air guiding part 221, first surface 222,

[0032] first sound absorbing member 31, second sound absorbing member 32,

[0033] wind wheel 51, motor 52, filter element 53. Detailed implementation manners

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0035] The fan assembly according to an embodiment of the present invention will be described below with reference to the drawings.

[0036] As Figures 1 - 5 shown, the fan assembly according to an embodiment of the present invention includes a housing 10, a wind wheel 51 and a motor 52.

[0037] The housing 10 defines an accommodation chamber 101, an air inlet passage 102, and an air outlet passage 20. The accommodation chamber 101 is communicated between the air inlet passage 102 and the air outlet passage 20. The impeller 51 is rotatably disposed in the accommodation chamber 101, and the motor 52 is connected to the impeller 51 to drive the impeller 51 to rotate. When the impeller 51 rotates, the impeller 51 can drive air to enter the accommodation chamber 101 along the air inlet passage 102, drive the air in the accommodation chamber 101 to enter the air outlet passage 20, and make the air flow along the air outlet passage 20 to a specified area, so as to lead the air to the specified area.

[0038] The housing 10 further defines a first chamber 11. The first chamber 11 is separated from the air outlet passage 20 by a first side wall 21. The first chamber 11 is communicated with the air outlet passage 20 through a first air hole 201. A first sound-absorbing member 31 is disposed in the first chamber 11. When the impeller 51 drives the air to flow in the air outlet passage 20, noise will be generated, and at the same time, noise will also be generated when the impeller 51 rotates. When the generated noise is transmitted to the air outlet passage 20, the air can enter the first chamber 11 through the first air hole 201. The first sound-absorbing member 31 in the first chamber 11 can buffer the vibration of the air, that is, absorb the energy in the sound, and thus can reduce the noise transmitted from the air outlet passage 20 and reduce the noise transmitted by the fan assembly to the specified area.

[0039] Wherein, the air outlet passage 20 has a wind guiding portion 221, and the wind guiding portion 221 is disposed opposite to the first side wall 21. The wind guiding portion 221 gradually extends obliquely toward the direction close to the first side wall 21 from the inlet 203 to the outlet 204. When the impeller 51 drives the air, the air in the accommodation chamber 101 will enter the air outlet passage 20 from the inlet 203 and flow toward the outlet 204. The wind guiding portion 221 can guide the flow direction of the air, so that at least part of the air in the air outlet passage 20 flows into the first chamber 11. In this way, the first sound-absorbing member 31 in the first chamber 11 can absorb more noise, and thus can fully reduce the noise transmitted from the air outlet passage 20 and fully reduce the noise transmitted by the fan assembly to the specified area.

[0040] That is to say, by providing the wind guiding portion 221, it is convenient to make full use of the first sound-absorbing member 31 in the first chamber 11 to reduce the noise in the air outlet passage 20, achieve a better sound absorption effect, and further reduce the noise transmitted by the fan assembly to the specified area.

[0041] According to the fan assembly of the embodiment of the present invention, by providing the wind guiding portion 221 and using the wind guiding portion 221 to guide the flow direction of the air, at least part of the air in the air outlet passage 20 flows into the first chamber 11, so as to make full use of the first sound-absorbing member 31 in the first chamber 11 to reduce the noise in the air outlet passage 20, achieve a better sound absorption effect, and further reduce the noise transmitted by the fan assembly to the specified area.

[0042] The blower assembly according to specific embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0043] In some specific embodiments of the present utility model, as Figures 1 - 5 shown, the blower assembly includes a housing 10, a wind wheel 51, and a motor 52.

[0044] In some embodiments of the present utility model, as Figure 4 、 Figure 5 shown, the air outlet passage 20 further has a second side wall 22. The second side wall 22 is disposed opposite to the first side wall 21. The second side wall 22 has a first surface 222 and a wind guiding portion 221 on the side facing the air outlet passage 20. The first surface 222 and the wind guiding portion 221 are arranged in the air outlet direction. The first surface 222 is located upstream and / or downstream of the wind guiding portion 221. The wind guiding portion 221 is inclined with respect to the first surface 222 to jointly guide the flow direction of the air in the air outlet passage 20 by using the first surface 222 and the wind guiding portion 221, and to make part of the air in the air outlet passage 20 flow toward the first chamber 11 by using the wind guiding portion 221, so as to fully utilize the first sound absorbing member 31 to absorb the vibration in the air and improve the effect of the first sound absorbing member 31 in absorbing the energy in the sound.

[0045] In some embodiments, as Figure 5 shown, the inlet 203 is located behind the outlet 204. The air outlet direction of the air outlet passage 20 is from back to front. The first surface 222 extends in the front-back direction, which is convenient for reducing the resistance of the first surface 222 to the air, and further ensuring the air outlet speed and air outlet volume of the air outlet passage 20. Among them, the first side wall 21 is the left side wall of the air outlet passage 20, and the second side wall 22 is the right side wall of the air outlet passage 20. The wind guiding portion 221 extends obliquely from back to front and leftward.

[0046] In some examples, the first side wall 21 includes a first surface 222. The first surface 222 is located upstream of the wind guiding portion 221. Driven by the wind wheel 51, air enters the air outlet passage 20 from the inlet 203 and flows backward along the first surface 222. Part of the air will flow backward and leftward into the first chamber 11 when flowing through the wind guiding portion 221, so as to fully utilize the first sound absorbing member 31 to absorb the vibration in the air and improve the effect of the first sound absorbing member 31 in absorbing the energy in the sound.

[0047] In some examples, the first side wall 21 includes a first surface 222. The first surface 222 is located downstream of the wind guiding portion 221. Driven by the wind wheel 51, air enters the air outlet passage 20 from the inlet 203. Part of the air will flow into the first chamber 11 when flowing through the wind guiding portion 221, so as to fully utilize the first sound absorbing member 31 to absorb the vibration in the air. The first surface 222 located downstream of the wind guiding portion 221 can guide the flow direction of the air to guide at least part of the air to flow to a specified area along a specified direction.

[0048] In some examples, the second side wall 22 includes two first surfaces 222, and the air guiding portion 221 connects the two first surfaces 222. That is to say, one of the first surfaces 222 is located upstream of the air guiding portion 221, and the other first surface 222 is located upstream of the air guiding portion 221. Both of the first surfaces 222 extend in the front-rear direction.

[0049] The air entering the air outlet passage 20 from the inlet 203 flows backward along the first surface 222, and when flowing through the air guiding portion 221, it flows leftward and backward toward the first chamber 11, so as to fully absorb the noise in the air by using the first sound absorbing member 31. When the air flows through the second surface 212 located downstream of the air guiding portion 221, the air flows backward along the second surface 212, so that the air in the air outlet passage 20 flows backward from the outlet 204 to a specified area.

[0050] In some alternative embodiments of the present utility model, the first surface 222 is perpendicular to the axial direction of the wind wheel 51, and the included angle between the air guiding portion 221 and the plane where the first surface 222 is located is 10° to 40°. By controlling the included angle between the air guiding portion 221 and the first surface 222, while guiding the flow direction of the air by using the air guiding portion 221, so that part of the air can flow along the air guiding portion 221 to the first chamber 11, the air guiding portion 221 can be prevented from causing too much resistance to the air.

[0051] Specifically, the included angle between the air guiding portion 221 and the plane where the first surface 222 is located is greater than or equal to 10°, so as to ensure the air guiding effect of the air guiding portion 221, so that part of the air flowing through the air guiding portion 221 can change the original flow direction and flow into the first chamber 11, and then part of the air can enter the first chamber 11, so as to fully absorb the vibration in the air by using the first sound absorbing member 31.

[0052] The included angle between the air guiding portion 221 and the plane where the first surface 222 is located is less than 40°, so as to avoid too large an included angle between the air guiding portion 221 and the flow direction of the air, avoid the air guiding portion 221 from causing too much resistance to the air, and avoid the air guiding portion 221 from excessively affecting the air flow rate at the outlet 204.

[0053] In some embodiments, the included angle between the air guiding portion 221 and the plane where the first surface 222 is located is 10°, 15°, 20°, 25°, 30°, 35° or 40°.

[0054] In some embodiments of the present utility model, the first air holes 201 are provided on the first side wall 21, and the axial direction of at least a part of the first air holes 201 extends obliquely into the first chamber 11 along the air outlet direction, so that the first air holes 201 are windward holes. In this way, when air flows along the first side wall 21, part of the air will flow into the first chamber 11 along the inner wall of the first air holes 201, so as to make full use of the first sound-absorbing member 31 in the first chamber 11 to absorb vibrations in the air.

[0055] In some embodiments, the inlet 203 is located behind the outlet 204, the air outlet direction of the air outlet passage 20 is from back to front, the first side wall 21 is the left side wall of the air outlet passage 20, the first chamber 11 is located on the left side of the first side wall 21, and the axial direction of the first air holes 201 extends obliquely from back to front and to the left, so that part of the air can flow to the inside of the first chamber 11 along the inner wall of the first air holes 201.

[0056] In some embodiments of the present utility model, as Figure 4 , Figure 5 shown, the air outlet passage 20 further has a second side wall 22, the second side wall 22 is arranged opposite to the first side wall 21, and the side of the first side wall 21 facing the air outlet passage 20 has an extension portion 211. The extension portion 211 and the air guiding portion 221 are arranged opposite to each other in the first direction. The extension portion 211 extends obliquely away from the second side wall 22 gradually from the inlet 203 to the outlet 204, so as to use the air guiding portion 221 and the extension portion 211 to jointly guide the air flow direction. When the air flows through the extension portion 211 and the air guiding portion 221, the air flow direction can be fully changed, so that the air can flow into the first chamber 11, so as to make full use of the first sound-absorbing member 31 in the first chamber 11 to absorb vibrations in the air.

[0057] In some embodiments, as Figure 3 , Figure 5 shown, the first direction extends along the left-right direction (it should be understood that the above direction definition is only for facilitating the description of the drawings and will not limit the actual installation position and direction of the fan assembly). Driven by the wind wheel 51, the air in the air outlet passage 20 flows from the back to the front from the outlet 204 to the designated area. The first side wall 21 and the second side wall 22 are arranged opposite to each other along the left-right direction. When the air in the air outlet passage 20 flows backward, when the air flows through the air guiding portion 221 and the extension portion 211, the air guiding portion 221 can change the air flow direction, so that the air flows into the first chamber 11, so as to use the first sound-absorbing member 31 in the first chamber 11 to absorb vibrations in the air and reduce the noise in the air outlet passage 20.

[0058] Wherein, the first side wall 21 can be the left side wall of the air outlet channel 20, and the first chamber 11 is located on the left side of the first side wall 21. At this time, the air guiding portion 221 extends obliquely leftward from front to back; the first side wall 21 can also be the right side wall of the air outlet channel 20, and the first chamber 11 is located on the right side of the first side wall 21. At this time, the air guiding portion 221 extends obliquely rightward from front to back. There are no excessive restrictions here.

[0059] In some other embodiments, the first direction extends in the up-down direction, the axial direction of the wind wheel 51 extends in the left-right direction. Driven by the wind wheel 51, the air in the air outlet channel 20 flows from the rear to the front and flows out from the outlet 204 to the specified area. The first side wall 21 and the second side wall 22 face each other in the up-down direction. When the air in the air outlet channel 20 flows backward, when the air flows through the air guiding portion 221 and the extending portion 211, the air guiding portion 221 can change the flow direction of the air so that the air flows into the first chamber 11, so as to utilize the first sound absorbing member 31 in the first chamber 11 to absorb the vibration in the air and reduce the noise in the air outlet channel 20.

[0060] Wherein, the first side wall 21 can be the upper side wall of the air outlet channel 20, and the first chamber 11 is located on the upper side of the first side wall 21. At this time, the air guiding portion 221 extends obliquely upward from front to back; the first side wall 21 can also be the lower side wall of the air outlet channel 20, and the first chamber 11 is located on the lower side of the first side wall 21. At this time, the air guiding portion 221 extends obliquely downward from front to back. There are no excessive restrictions here.

[0061] In some alternative embodiments of the present utility model, as Figure 4 shown, the side of the first side wall 21 facing the air outlet channel 20 has a second surface 212 and an extending portion 211. The second surface 212 and the extending portion 211 are arranged in the air outlet direction. The second surface 212 is located upstream and / or downstream of the extending portion 211. The extending portion 211 is inclined with respect to the second surface 212, so as to jointly guide the flow direction of the air in the air outlet channel 20 by the second surface 212 and the extending portion 211, and make part of the air in the air outlet channel 20 flow toward the first chamber 11 by the extending portion 211 and the air guiding portion 221, so as to fully utilize the first sound absorbing member 31 to absorb the vibration in the air and improve the effect of the first sound absorbing member 31 absorbing the energy in the sound.

[0062] In some embodiments, the inlet 203 is located behind the outlet 204, and the air outlet direction of the air outlet channel 20 is from the rear to the front. The second surface 212 extends in the front-rear direction, which is convenient for reducing the resistance of the second surface 212 to the air, and further ensuring the air outlet speed and air volume of the air outlet channel 20. Wherein, the first side wall 21 is the left side wall of the air outlet channel 20, the second side wall 22 is the right side wall of the air outlet channel 20, and the extending portion 211 extends obliquely leftward from the rear to the front.

[0063] In some examples, the first sidewall 21 includes a second surface 212 which is located upstream of the extension portion 211. Driven by the wind wheel 51, air enters the air outlet passage 20 from the inlet 203 and flows backward along the second surface 212. When part of the air flows through the extension portion 211 and the air guiding portion 221, it will flow backward and leftward into the first chamber 11, so as to make full use of the first sound absorbing member 31 to absorb the vibration in the air and improve the effect of the first sound absorbing member 31 in absorbing the energy in the sound.

[0064] In some examples, the first sidewall 21 includes a second surface 212 which is located downstream of the extension portion 211. Driven by the wind wheel 51, air enters the air outlet passage 20 from the inlet 202. When part of the air flows through the extension portion 211 and the air guiding portion 221, it will flow into the first chamber 11, so as to make full use of the first sound absorbing member 31 to absorb the vibration in the air. The second surface 212 located downstream of the extension portion 211 can guide the flow direction of the air to guide at least part of the air to flow to the designated area along the designated direction.

[0065] In some examples, the second sidewall 22 includes two second surfaces 212, and the extension portion 211 connects these two second surfaces 212. That is to say, one of the second surfaces 212 is located upstream of the extension portion 211, and the other second surface 212 is located upstream of the extension portion 211. Both of the two second surfaces 212 extend in the front-back direction.

[0066] The air entering the air outlet passage 20 from the inlet 203 flows backward along the second surface 212. When it flows through the extension portion 211 and the air guiding portion 221, it flows leftward and backward into the first chamber 11, so as to make full use of the first sound absorbing member 31 to absorb the vibration in the air. When the air flows through the second surface 212 located downstream of the extension portion 211, the air flows backward along the second surface 212, so that the air in the air outlet passage 20 flows backward from the outlet 204 to the designated area.

[0067] In some examples, the second surface 212 is perpendicular to the axial direction of the wind wheel 51, and the included angle between the extension portion 211 and the plane where the second surface 212 is located is 10° to 40°. By controlling the included angle between the extension portion 211 and the second surface 212, while guiding the flow direction of the air by the extension portion 211 so that part of the air can flow along the extension portion 211 to the first chamber 11, it is possible to avoid the extension portion 211 causing too much resistance to the air.

[0068] Specifically, the included angle between the extension part 211 and the plane where the second surface 212 is located is greater than or equal to 10°, so as to ensure the air guiding effect of the extension part 211, so that part of the air flowing through the extension part 211 and the air guiding part 221 can change the original flow direction and flow into the first chamber 11, and then part of the air can enter the first chamber 11, so as to make full use of the first sound absorbing member 31 to absorb the vibration in the air.

[0069] The included angle between the extension part 211 and the plane where the second surface 212 is located is less than 40°, so as to avoid too large an included angle between the extension part 211 and the air flow direction, avoid too large a resistance to the air caused by the extension part 211, and avoid the extension part 211 from excessively affecting the air flow rate at the outlet 204.

[0070] In some embodiments, the included angle between the extension part 211 and the plane where the second surface 212 is located is 10°, 15°, 20°, 25°, 30°, 35° or 40°.

[0071] In some alternative embodiments of the present utility model, the extending direction of the air guiding part 221 is parallel to the extending direction of the extension part 211, so as to control the size of the air outlet channel 20, and then, in the first direction, keep the distance between the air guiding part 221 and the extension part 211 consistent. Wherein, one end of the air guiding part 221 facing the inlet 203 and one end of the extension part 211 facing the inlet 203 define an air inlet, and the other end of the air guiding part 221 and the other end of the extension part 211 define an air outlet. The extending direction of the air guiding part 221 is parallel to the extending direction of the extension part 211, so that the sizes of the air inlet and the air outlet are equal, and then the air guiding part 221 and the extension part 211 can better guide the air in the air outlet channel 20, so that the air can flow into the first chamber 11 along the air guiding part 221 and the extension part 211.

[0072] Specifically, if the extending directions of the air guiding part 221 and the extension part 211 extend in opposite directions along the air flow direction, it will cause the air outlet to be larger than the air inlet, which will result in a poor air guiding effect of the air guiding part 221, and only a small amount of air can be guided, so that a small amount of air flows into the first chamber 11 along the air guiding part 221.

[0073] If the extending directions of the air guiding part 221 and the extension part 211 extend in the same direction along the air flow direction, it will cause the air outlet to be smaller than the air inlet, which will cause the air velocity to increase when the air flows out of the air outlet, generating a large amount of noise.

[0074] In some alternative embodiments of the present utility model, such as Figure 3As shown, the first direction is the axial direction of the wind wheel 51. When the wind wheel 51 drives air to flow along the air outlet channel 20 from the inlet 203 to the outlet 204, when the air flows through the air guiding part 221 and the extending part 211, the air guiding part 221 and the extending part 211 can change the flow direction of the air, causing the air to flow into the first chamber 11, so as to utilize the first sound absorbing member 31 in the first chamber 11 to absorb the vibration in the air and reduce the noise in the air outlet channel 20.

[0075] In some alternative embodiments of the present utility model, as Figure 5 shown, the housing 10 further defines a second chamber 12. The air outlet channel 20 and the second chamber 12 are separated by the second side wall 22. The air outlet channel 20 and the second chamber 12 are communicated through a second air hole 202. A second sound absorbing member 32 is provided in the second chamber 12. The air guiding part 221 is a part of the second side wall 22. The air in the air outlet channel 20 can enter the second chamber 12 through the second air hole 202. The second sound absorbing member 32 in the second chamber 12 can buffer the vibration of the air, that is, absorb the energy in the sound, and thus can reduce the noise transmitted from the air outlet channel 20 and reduce the noise transmitted by the fan assembly to the designated area.

[0076] In some specific embodiments of the present utility model, the second air hole 202 is provided on the second side wall 22. The axial direction of at least a part of the second air holes 202 extends obliquely into the second chamber 12 along the air outlet direction, so that the second air holes 202 are windward holes. In this way, when the air flows along the second side wall 22, part of the air will flow into the second chamber 12 along the inner wall of the second air hole 202, so as to make full use of the second sound absorbing member 32 in the second chamber 12 to buffer the vibration in the air.

[0077] In some embodiments, as Figure 4 、 Figure 5 shown, the inlet 203 is located behind the outlet 204. The air outlet direction of the air outlet channel 20 is from back to front. The second side wall 22 is the right side wall of the air outlet channel 20. The second chamber 12 is located on the right side of the second side wall 22. The axial direction of the second air hole 202 extends obliquely from back to front and to the right, so that part of the air can flow to the second chamber 12 along the inner wall of the second air hole 202.

[0078] In some embodiments, the air guiding portion 221 is provided with a second air hole 202. The air guiding portion 221 extends obliquely in a direction approaching the first side wall 21 gradually from the inlet 203 to the outlet 204. The first side wall 21 and the second side wall 22 are oppositely arranged. Driven by the wind wheel 51, air flows from front to back along the air outlet channel 20. On the one hand, the air guiding portion 221 can guide the flow direction of the air so that the air can flow towards the first chamber 11. On the other hand, since the air guiding portion 221 extends obliquely in the direction of the first side wall 21, part of the air will flow onto the air guiding portion 221 when the air flows from front to back. This part of the air can enter the second chamber 12 through the second air hole 202 on the air guiding portion 221, so as to utilize the second chamber 12 to buffer the vibration in the air, thereby reducing the noise in the air outlet channel 20.

[0079] In some specific embodiments of the present utility model, in the first direction, the thickness of the first sound absorbing member 31 is greater than the thickness of the first chamber 11, so that the first sound absorbing member 31 can be fully attached to the inner wall of the first chamber 11 in the first direction, so as to utilize the first sound absorbing member 31 to fully absorb the energy in the sound and achieve a better sound absorbing effect.

[0080] In some embodiments, as Figure 5 shown, the first sound absorbing member 31 is sound absorbing cotton. In the first direction, the thickness of the first chamber 11 is D1, and the thickness of the first sound absorbing member 31 when not being extruded is 2D1 - 2.2D1.

[0081] Among them, the thickness of the first sound absorbing member 31 when not being extruded is greater than or equal to 2D1 to ensure that the first sound absorbing member 31 can be fully attached to the inner wall of the first chamber 11 in the first direction, and the thickness of the first sound absorbing member 31 when not being extruded is less than or equal to 2.2D1 to avoid excessive extrusion of the first sound absorbing member 31, which affects the buffering effect of the first sound absorbing member 31 on vibration.

[0082] In some examples, the thickness of the first sound absorbing member 31 when not being extruded can be 2D1, 2.1D1 or 2.2D1.

[0083] In some specific embodiments of the present utility model, the thickness of the second sound absorbing member 32 is greater than the thickness of the second chamber 12, so that the second sound absorbing member 32 can be fully attached to the inner wall of the second chamber 12 in the first direction, so as to utilize the second sound absorbing member 32 to fully absorb the energy in the sound and achieve a better sound absorbing effect.

[0084] In some embodiments, the second sound absorbing member 32 is sound absorbing cotton. In the first direction, the thickness of the second chamber 12 is D2, and the thickness of the second sound absorbing member 32 when not being extruded is 2D2 - 2.2D2.

[0085] Wherein, the thickness of the second sound-absorbing member 32 when not being extruded is greater than or equal to 2D1 to ensure that the second sound-absorbing member 32 can be fully attached to the inner wall of the second chamber 12 in the first direction, and the thickness of the second sound-absorbing member 32 when not being extruded is less than or equal to 2.2D1 to avoid excessive extrusion of the second sound-absorbing member 32 and affect the vibration buffering effect of the second sound-absorbing member 32.

[0086] In some examples, the thickness of the second sound-absorbing member 32 when not being extruded can be 2D2, 2.1D2 or 2.2D2.

[0087] In some embodiments of the present invention, the air guiding portion 221 is disposed near the inlet 203 to guide the flow of air as early as possible when the air enters the air outlet passage 20 by using the air guiding portion 221, so as to facilitate the air to change the flow direction as early as possible and enable the air to flow into the first chamber 11 as early as possible. This is conducive to increasing the flow rate of the air entering the first chamber 11, so as to fully buffer the vibration in the air and thus achieve a better sound-absorbing effect.

[0088] The fresh air module 1 of the air conditioner according to the embodiment of the present invention will be described below. The air conditioner according to the embodiment of the present invention includes a fan assembly and a filter member 53 according to the above embodiment of the present invention.

[0089] The inlet 203 of the air inlet passage 102 is a fresh air inlet 1023. The filter member 53 is disposed in the air inlet passage 102. The filter member 53 can filter the air passing through the filter member 53 in the air inlet passage 102, thereby ensuring the cleanliness of the air entering the accommodation chamber 101, preventing unclean air from contaminating the air impeller 51 in the accommodation chamber 101, and further ensuring the cleanliness of the air in the air outlet passage 20 to provide clean air to the designated area.

[0090] In some examples, as Figure 3 shown, the filter member 53 is obliquely placed in the air inlet passage 102. The filter member 53 divides the air inlet passage 102 into a first air inlet chamber 1021 and a second air inlet chamber 1022. The first air inlet chamber 1021 is communicated with the fresh air inlet 1023, and the second air inlet chamber 1022 is communicated with the accommodation chamber 101. The air entering the first air inlet chamber 1021 from the fresh air inlet 1023 is filtered by the filter member 53 and then enters the second air inlet chamber 1022 and enters the accommodation chamber 101 along the second air inlet chamber 1022.

[0091] Wherein, placing the filter member 53 obliquely in the air inlet passage 102 is convenient for increasing the contact area between the filter member 53 and the air in the first air inlet chamber 1021, so as to improve the filtering efficiency of the filter member 53 for the air in the first air inlet chamber 1021 and enable the filter member 53 to fully and quickly filter the air in the first air inlet chamber 1021.

[0092] In some examples, an access opening is provided on the side wall of the housing 10. The access opening is in communication with the air inlet passage 102. The filter element 53 is slidably disposed in the air inlet passage 102 from the access opening, so as to facilitate cleaning or replacement of the filter element 53.

[0093] According to the fresh air module 1 of the embodiment of the present invention, by using the fan assembly according to the above embodiment of the present invention, through the provision of the air guiding portion 221, the air guiding portion 221 is used to guide the air flow direction, so that at least part of the air in the air outlet passage 20 flows into the first chamber 11, so as to make full use of the first sound absorbing member 31 in the first chamber 11 to reduce the noise in the air outlet passage 20, achieve a better sound absorption effect, and reduce the noise transmitted by the fresh air module 1 to the designated area.

[0094] The following describes an air conditioner according to an embodiment of the present invention. The air conditioner according to the embodiment of the present invention includes the fresh air module 1 of the air conditioner according to the above embodiment of the present invention.

[0095] According to the air conditioner of the embodiment of the present invention, by using the fresh air module 1 of the air conditioner according to the above embodiment of the present invention, through the provision of the air guiding portion 221, the air guiding portion 221 is used to guide the air flow direction, so that at least part of the air in the air outlet passage 20 flows into the first chamber 11, so as to make full use of the first sound absorbing member 31 in the first chamber 11 to reduce the noise in the air outlet passage 20, achieve a better sound absorption effect, and reduce the noise transmitted by the air conditioner to the designated area.

[0096] Other components and operations of the air conditioner according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0097] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0098] In the description of the present utility model, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0099] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0100] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0101] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model 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 cavity, an air inlet channel, an air outlet channel, and a first chamber, wherein the receiving cavity is connected between the air inlet channel and the air outlet channel, the first chamber is separated from the air outlet channel by a first side wall and the two are connected by a first air hole, and a first sound absorbing member is disposed in the first chamber; 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 air outlet passage has an air guide portion, and the air guide portion is arranged opposite to the first side wall. The air guide portion extends gradually and obliquely toward the direction close to the first side wall from the inlet to the outlet of the air outlet passage.

2. The fan assembly according to claim 1, characterized in that: The air outlet channel also has a second side wall, which is arranged opposite to the first side wall, and the second side wall has a first surface and the air guide portion on the side facing the air outlet channel, the first surface and the air guide portion are arranged in the air outlet direction and the first surface is located upstream and / or downstream of the air guide portion, and the air guide portion is inclined relative to the first surface.

3. The fan assembly according to claim 2, characterized in that: The first surface is perpendicular to the axial direction of the wind wheel, and the angle between the wind guide portion and the plane where the first surface is located is 10° to 40°.

4. The fan assembly according to claim 1, characterized in that: The first air hole is disposed on the first side wall, and at least a portion of the first air hole extends axially along an air outlet direction and obliquely toward the first chamber.

5. The fan assembly according to claim 1, characterized in that: The air outlet channel further has a second side wall, and the second side wall is arranged opposite to the first side wall; The first side wall has an extension portion on a side facing the air outlet channel, the extension portion is arranged opposite to the air guide portion in a first direction, and the extension portion extends gradually and obliquely away from the second side wall from the inlet to the outlet of the air outlet channel.

6. The fan assembly according to claim 5, characterized in that: The extension direction of the air guide portion is parallel to the extension direction of the extension portion; And\or, the first direction is the axial direction of the wind wheel.

7. The fan assembly according to claim 5, characterized in that: The shell further defines a second chamber, the air outlet channel and the second chamber are separated by the second side wall and the two are connected through a second air hole, a second sound absorbing member is arranged in the second chamber, and the air guide portion is a part of the second side wall.

8. The fan assembly according to claim 7, characterized in that: The second air hole is disposed on the second side wall, and at least a portion of the second air hole extends axially along an air outlet direction and obliquely toward the second chamber.

9. The fan assembly according to claim 7, characterized in that: In the first direction, the thickness of the first sound absorbing member is greater than the thickness of the first chamber, and the thickness of the second sound absorbing member is greater than the thickness of the second chamber.

10. The fan assembly according to claim 9, characterized in that: The first sound absorbing member and the second sound absorbing member are sound absorbing cotton. In the first direction, the thickness of the first chamber is D1, and the thickness of the first sound absorbing member when not squeezed is 2D1 to 2.2D1; And\or, in the first direction, the thickness of the second chamber is D2, and the thickness of the second sound absorbing member when not subjected to extrusion pressure is 2D2-2.2D2.

11. The fan assembly according to any one of claims 1 to 10, characterized in that: The air guiding portion is arranged close to the inlet of the air outlet channel.

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

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

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