Fan assembly, fresh air module having fan assembly, and air conditioner having fan assembly

Abstract

A fan assembly, a fresh air module (8) having the fan assembly, and an air conditioner having the fan assembly. The fan assembly comprises: a housing (10), an accommodating cavity (13), an air intake passage (14) and an air output passage (15) being defined in the housing (10), and the accommodating cavity (13) being in communication between the air intake passage (14) and the air output passage (15); and a wheel (21) and an electric motor (22), the wheel (21) being rotatably arranged in the accommodating cavity (13), and the electric motor (22) being connected to the wheel (21) to drive the wheel (21) to rotate, wherein the air output passage (15) comprises a bent air output section (151), the air output passage (15) is in communication with the accommodating cavity (13) by means of the bent air output section (151), a flow guide portion (40) is provided in the air output passage (15), and at least part of the flow guide portion (40) extends into the bent air output section (151).

Description

Fan assembly, fresh air module and air conditioner having the same

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202310981839.7 and application date August 4, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of fans, and in particular to a fan assembly, a fresh air module and an air conditioner having the same. Background Art

[0004] When the air in the fan assembly in the related art flows at a bend, the flow direction of the air changes, and the air tends to gather at the bend, affecting the flow rate of the air in the fan assembly.

[0005] Application Contents

[0006] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a fan assembly that extends at least a portion of a guide portion to a curved air outlet section, and uses the guide portion to guide the air in the curved air outlet section, so that the air in the curved air outlet section can flow smoothly along the guide portion to a designated area, thereby reducing the resistance encountered by the air in the curved air outlet section and increasing the flow rate of the air in the curved air outlet section.

[0007] The present application also proposes a fresh air module and an air conditioner having the fan assembly.

[0008] According to the first aspect of the present application, the fan assembly includes: a shell, the shell defines a accommodating cavity, an air inlet channel and an air outlet channel, the accommodating 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 accommodating cavity, and the motor is connected to the wind wheel to drive the wind wheel to rotate; wherein, the air outlet channel includes a bent air outlet section, the air outlet channel is connected with the accommodating cavity through the bent air outlet section, and a guide portion is provided in the air outlet channel, and at least a portion of the guide portion extends into the bent air outlet section.

[0009] According to the embodiment of the present application, the fan assembly extends at least a portion of the guide part to the bent air outlet section, and uses the guide part to guide the air at the bent air outlet section, so that the air at the bent air outlet section can flow smoothly along the guide part to the designated area, thereby reducing the resistance encountered by the air at the bent air outlet section and increasing the flow rate of the air at the bent air outlet section.

[0010] In addition, the fan assembly according to the above embodiment of the present application may also have the following additional technical features:

[0011] According to some embodiments of the present application, the guide portion includes a guide plate, the guide plate is oriented along the extension direction of the air outlet channel, the guide plate includes a bent guide section, and the bent guide section is located in the bent air outlet section.

[0012] According to some optional embodiments of the present application, the air outlet channel also has a straight air outlet section, which is connected downstream of the bent air outlet section; wherein, the guide plate also includes a straight guide section, which is arranged in the straight air outlet section and extends along the length direction of the straight air outlet section, one end of the bent guide section is connected to the straight air outlet section and the other end extends toward the inlet of the air outlet channel.

[0013] According to some optional embodiments of the present application, the number of the guide plate is one, or the number of the guide plates is multiple and the multiple guide plates are arranged at intervals in the width direction of the air outlet channel.

[0014] According to some specific embodiments of the present application, the bent guide section is an arc guide section, and the centers of the arc guide sections of the multiple guide plates coincide and the corresponding central angles are equal.

[0015] According to some specific embodiments of the present application, among two adjacent guide plates, the extension length of the guide plate close to the accommodating cavity is smaller than the extension length of the guide plate far from the accommodating cavity.

[0016] According to some specific embodiments of the present application, the number of the guide plates is less than six.

[0017] In some embodiments, the number of the guide plates is two or three.

[0018] According to some embodiments of the present application, the air outlet channel is located on one side of the circumference of the wind wheel and is arranged in a first direction with the accommodating cavity, at least a portion of the air outlet channel extends along a second direction, and the first direction, the second direction and the axial direction of the wind wheel are perpendicular to each other.

[0019] According to some optional embodiments of the present application, the shell includes: a shell body, the shell body having a first side wall and a second side wall arranged opposite to each other in the second direction, the outlet of the air outlet channel is arranged on the first side wall; a volute tongue, the first end of the volute tongue is connected to the first side wall and the second end extends toward the second side wall, the second end of the volute tongue and the second side wall define the inlet of the air outlet channel, and the inlet of the air outlet channel is connected to the bent air outlet section and the accommodating cavity.

[0020] According to some specific embodiments of the present application, in the second direction, the distance between one end of the volute tongue close to the second sidewall and the second sidewall is smaller than the distance between one end of the volute tongue close to the second sidewall and the first sidewall.

[0021] According to some specific embodiments of the present application, in the second direction, the distance between one end of the volute tongue close to the second side wall and the second side wall is greater than the distance between one end of the guide portion close to the second side wall and the second side wall.

[0022] According to some embodiments of the present application, the cross-sectional area of ​​at least one section of the air outlet channel gradually increases along the airflow direction.

[0023] According to the second aspect embodiment of the present application, a fresh air module of an air conditioner is proposed, and the fresh air module of the air conditioner includes: the fan assembly according to the embodiment of the first aspect of the present application, the inlet of the air inlet channel is the fresh air inlet; and a filter element, which is arranged in the air inlet channel.

[0024] According to the fresh air module of the embodiment of the present application, by utilizing the fan assembly described in the embodiment of the first aspect of the present application, by extending at least a portion of the guide part to the bent air outlet section, the guide part is used to guide the air at the bent air outlet section, so that the air at the bent air outlet section can flow smoothly along the guide part to the designated area, thereby reducing the resistance encountered by the air at the bent air outlet section and increasing the flow rate of the air at the bent air outlet section.

[0025] According to an embodiment of the third aspect of the present application, an air conditioner is proposed, which includes the fan assembly described in the embodiment of the first aspect; or includes the fresh air module of the air conditioner according to the embodiment of the second aspect of the present application.

[0026] According to the air conditioner of the embodiment of the present application, by utilizing the fan assembly described in the embodiment of the first aspect of the present application, by extending at least a portion of the guide portion to the bent air outlet section, the guide portion is utilized to guide the air at the bent air outlet section, so that the air at the bent air outlet section can flow smoothly along the guide portion to the designated area, thereby reducing the resistance encountered by the air at the bent air outlet section and increasing the flow rate of the air at the bent air outlet section.

[0027] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] FIG1 is a schematic structural diagram of a fresh air module according to an embodiment of the present application.

[0030] FIG2 is a schematic structural diagram of a fresh air module according to an embodiment of the present application.

[0031] FIG3 is a front view of a fresh air module according to an embodiment of the present application.

[0032] FIG4 is a cross-sectional view of a fresh air module according to an embodiment of the present application.

[0033] FIG5 is an enlarged view of point A in FIG4 .

[0034] FIG6 is an exploded view of a fresh air module according to an embodiment of the present application.

[0035] FIG7 is a cross-sectional view of a fresh air module according to an embodiment of the present application.

[0036] FIG8 is a functional relationship between air volume and noise according to different embodiments.

[0037] Reference numerals: housing 10,

[0038] Shell body 11, first side wall 111, second side wall 112, air hole 114, first volute 116, first limiting step 1161, second clamping protrusion 1162, first clamping arm 1163, step portion 1164, second volute 117, second limiting step 1171, first clamping protrusion 1172, step matching portion 1174,

[0039] The volute tongue 12, the accommodating cavity 13, the air inlet channel 14, the first wall 143, the second wall 144, the air outlet channel 15, the bent air outlet section 151, the straight air outlet section 152,

[0040] First soundproof cover 181, first matching step 1811, second clamping arm 1812, second soundproof cover 182, second matching step 1821,

[0041] Air inlet housing 19, wind wheel 21, motor 22,

[0042] The guide portion 40, the first guide plate 401, the second guide plate 402, the guide plate 41, the bent guide section 411, the straight guide section 412,

[0043] Sound absorbing parts 50,

[0044] Motor part 61, valve 62,

[0045] Fresh air module 8, first fresh air inlet 811, second fresh air inlet 812, filter element 82. DETAILED DESCRIPTION

[0046] The following describes in detail embodiments of the present application. 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 application and are not to be construed as limiting the present application.

[0047] The fan assembly according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0048] As shown in FIG. 1 to FIG. 7 , the wind turbine assembly according to an embodiment of the present application includes a housing 10 , a wind wheel 21 and a motor 22 .

[0049] 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 arranged 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 into the accommodating chamber 13 along the air inlet channel 14, and drive the air in the accommodating chamber 13 into the air outlet channel 15. The air in the accommodating chamber 13 flows along the air outlet channel 15 to the designated area to guide the air to the designated area.

[0050] The air outlet channel 15 includes a bent air outlet section 151, which is connected to the accommodating chamber 13 through the bent air outlet section 151. The gas in the accommodating chamber 13 flows into the air outlet channel 15 through the bent air outlet section 151. The bent air outlet section 151 can change the flow direction of the air in the accommodating chamber 13 so that the air in the accommodating chamber 13 can flow smoothly into the air outlet channel 15.

[0051] Among them, a guide portion 40 is provided in the air outlet channel 15, and at least a portion of the guide portion 40 extends into the bent air outlet section 151. The guide portion 40 is used to guide the air in the bent air outlet section 151 so that the air can flow into the air outlet channel 15 evenly and quickly.

[0052] Specifically, when the air in the accommodating cavity 13 changes its flow direction to flow into the air outlet channel 15, the air tends to gather at the bent air outlet section 151, and the air encounters greater resistance when changing its flow direction. Therefore, at least a portion of the guide portion 40 is extended into the bent air outlet section 151, so that the guide portion 40 can guide the air in the bent air outlet section 151, so that the air can flow into the air outlet channel 15 evenly and quickly, thereby increasing the flow rate of the air in the bent air outlet section 151.

[0053] At the same time, the guide portion 40 guides the air at the bent air outlet section 151 to reduce the collision between the air and the shell 10 at the bent air outlet section 151, thereby reducing the noise generated at the bent air outlet section 151.

[0054] According to the fan assembly of the embodiment of the present application, by extending at least a portion of the guide portion 40 to the bent air outlet section 151, the guide portion 40 is used to guide the air at the bent air outlet section 151, so that the air at the bent air outlet section 151 can flow smoothly along the guide portion 40 to the designated area, thereby reducing the resistance encountered by the air at the bent air outlet section 151 and increasing the flow rate of the air at the bent air outlet section 151.

[0055] The fan assembly according to a specific embodiment of the present application is described below with reference to the accompanying drawings.

[0056] As shown in FIG. 1 to FIG. 7 , the wind turbine assembly according to an embodiment of the present application includes a housing 10 , a wind wheel 21 and a motor 22 .

[0057] In some embodiments of the present application, as shown in Figure 7, the guide portion 40 includes a guide plate 41, which is oriented along the extension direction of the air outlet channel 15. The guide plate 41 includes a bent guide section 411, and the bent guide section 411 is located in the bent air outlet section 151. The guide plate 41 is used to guide the air in the air outlet channel 15 so that the air in the air outlet channel 15 can flow to the designated area along the guide plate 41. The bent guide section 411 is located in the bent air outlet section 151, so as to use the bent guide section 411 to guide the air in the bent air outlet section 151, so that the air in the bent air outlet section 151 can flow along the bent guide section 411 to the inside of the air outlet channel 15.

[0058] In some embodiments, the curvature of the bent guide section 411 is the same as the curvature of the bent air outlet section 151, so that when the bent guide section 411 guides the air in the bent air outlet section 151, the guidance of the air by the bent guide section 411 is the same as the guidance of the air by the side wall of the bent air outlet section 151, thereby avoiding interference between the guidance of the air by the bent guide section 411 and the guidance of the air by the side wall of the bent air outlet section 151, and avoiding collision of multiple air streams, thereby facilitating further improving the guiding effect of the air in the bent air outlet section 151, avoiding air gathering at the bent air outlet section 151, and facilitating improving the flow efficiency of the air in the fan assembly.

[0059] In some optional embodiments of the present application, as shown in Figure 7, the air outlet channel 15 also has a straight air outlet section 152, which is connected downstream of the bent air outlet section 151. The air in the accommodating cavity 13 enters the straight air outlet section 152 through the bent air outlet section 151, and flows to the designated area along the straight air outlet section 152. When the air flows in the straight air outlet section 152, the air collides less with the side wall of the straight air outlet section 152, which facilitates reducing the resistance encountered by the air when flowing in the straight air outlet section 152, so that the air in the air outlet channel 15 can flow smoothly and stably to the designated area along the straight air outlet section 152.

[0060] Among them, the guide plate 41 also includes a straight guide section 412, which is arranged in the straight air outlet section 152 and extends along the length direction of the straight air outlet section 152. One end of the bent guide section 411 is connected to the straight air outlet section 152 and the other end extends toward the inlet of the air outlet channel 15. The straight guide section 412 can guide the air in the straight air outlet section 152 to avoid the air in the straight air outlet section 152 from gathering somewhere in the air outlet channel 15. The straight guide section 412 is arranged in the straight air outlet section 152 to utilize the straight guide section 412 to divert and guide the air in the straight air outlet section 152, so that the air in the straight air outlet section 152 can flow to the designated area evenly and quickly.

[0061] In some optional embodiments of the present application, the number of the guide plate 41 is one, or the number of the guide plates 41 is multiple and the multiple guide plates 41 are arranged at intervals in the width direction of the air outlet channel 15 .

[0062] Specifically, the number of guide plates 41 can be determined according to the width of the air outlet channel 15, so that the guide plates 41 can fully guide the air in the air outlet channel 15, so that the air in the air outlet channel 15 can flow smoothly to the designated area along the guide plates 41.

[0063] As shown in Figure 7, in this embodiment, the width direction of the air outlet channel 15 extends in the up-down direction, and the length direction of the air outlet channel 15 extends in the front-to-back direction. The air in the accommodating cavity 13 flows upward and forward to the bent air outlet section 151, flows through the bent air outlet section 151 and enters the straight air outlet section 152, and flows in the front-to-back direction to the designated area in the straight air outlet section 152.

[0064] The guide portion 40 includes two guide plates 41, namely a first guide plate 401 and a second guide plate 402. The first guide plate 401 and the second guide plate 402 are arranged at intervals in the up and down directions. The first guide plate 401 and the second guide plate 402 both have a bent guide section 411 and a straight guide section 412, so that the first guide plate 401 and the second guide plate 402 can guide the air in different areas within the bent air outlet section 151 and the straight air outlet section 152, and then use the first guide plate 401 and the second guide plate 402 to divert and guide the air in the air outlet channel 15, so that the air in the air outlet channel 15 can flow evenly and smoothly to the designated area.

[0065] In some specific embodiments of the present application, as shown in Figure 7, the curved guide section 411 is an arc guide section, and the centers of the arc guide sections of multiple guide plates 41 coincide and the corresponding central angles are equal, so that the multiple arc guide sections guide the air in the same way, avoiding collisions between multiple air streams in the curved air outlet section 151 and affecting the flow of air in the curved air outlet section 151.

[0066] Specifically, the centers of the multiple arc guide sections are made to coincide and the corresponding central angles are equal, so that when the air in different areas encounters the arc guide sections at different positions, the multiple arc guide sections can guide the flow direction of the air to be consistent, so that the air in the curved air outlet section 151 can flow to the straight air outlet section 152 in the same direction, thereby facilitating the improvement of the flow rate of the air in the curved air outlet section 151 and the reduction of the resistance encountered by the air flowing in the curved air outlet section 151.

[0067] In some specific embodiments of the present application, among two adjacent guide plates 41, the extension length of the guide plate 41 close to the accommodating cavity 13 is smaller than the extension length of the guide plate 41 away from the accommodating cavity 13, so as to adapt to the size of the space in different areas of the bent air outlet section 151, so that the guide plates 41 located in different areas can fully guide the air in the bent air outlet section 151.

[0068] For example, when the central angle is the same, the closer the bent air outlet section 151 is to the accommodating cavity 13, the shorter the bending length is, so that the extension length of the guide plate 41 close to the accommodating cavity 13 is smaller than the extension length of the guide plate 41 away from the accommodating cavity 13, so that the guide plates 41 at different positions in the air outlet channel 15 can adapt to the bending length of the bent air outlet section 151 at that position, so that the guide plates 41 can fully guide the air in the nearby area.

[0069] As shown in Figure 7, in this embodiment, the guide part 40 includes two guide plates 41, namely a first guide plate 401 and a second guide plate 402. The first guide plate 401 and the second guide plate 402 are arranged at intervals in the up and down directions. The first guide plate 401 and the second guide plate 402 both have a bent guide section 411 and a straight guide section 412, so that the first guide plate 401 and the second guide plate 402 can guide the air in different areas within the bent air outlet section 151 and the straight air outlet section 152, and then use the first guide plate 401 and the second guide plate 402 to evenly guide the air in the air outlet channel 15, so that the air in the air outlet channel 15 can flow smoothly to the designated area.

[0070] Among them, the first guide plate 401 is arranged away from the accommodating cavity 13, and the second guide plate 402 is arranged close to the accommodating cavity 13. The extension length of the second guide plate 402 is smaller than the extension length of the first guide plate 401. When the air in the accommodating cavity 13 enters the bent air outlet section 151, the first guide plate 401 can guide the air in the area farther away from the wind wheel 21, and the second guide plate 402 can guide the air in the area closer to the wind wheel 21, so as to guide the air near them respectively, so that the air in the accommodating cavity 13 can smoothly enter the bent air outlet section 151, and flow to the straight air outlet section 152 along the first guide plate 401 and the second guide plate 402 in the bent air outlet section 151.

[0071] In addition, by setting the first guide plate 401 and the second guide plate 402, the extension length of the second guide plate 402 is made smaller than the extension length of the first guide plate 401, and the first guide plate 401 and the second guide plate 402 are used to uniformly guide the air in different areas, thereby reducing the resistance encountered by the air at the bent air outlet section 151, reducing the collision between the air and the shell 10, and reducing the generation of noise.

[0072] As shown in Figure 8, by experimentally comparing the situation where no guide part 40 is set and the situation where the first guide plate 401 and the second guide plate 402 are set, it is found that by setting the first guide plate 401 and the second guide plate 402 by the above method, the extension length of the second guide plate 402 is smaller than the extension length of the first guide plate 401, and the noise can be reduced when the amount of air flowing in the fan assembly is the same.

[0073] In some specific embodiments of the present application, the number of guide plates 41 is less than six. If too many guide plates 41 are set in the air outlet channel 15, the excessive guide plates 41 will occupy a large amount of space in the air outlet channel 15, resulting in a reduction in the effective flow area in the air outlet channel 15. When the air flows in the air outlet channel 15, it is easy to be blocked between multiple guide plates 41, which is not conducive to the smooth flow of air in the air outlet channel 15.

[0074] Therefore, the number of guide plates 41 is made less than six, so that while the guide plates 41 are used to guide the air in the air outlet channel 15, the guide portion 40 can be prevented from occupying too much space in the air outlet channel 15, thereby ensuring the effective flow area of ​​the air in the air outlet channel 15 and allowing the air in the air outlet channel 15 to flow smoothly to the designated area.

[0075] In some embodiments, the number of guide plates 41 is two or three. When the number of guide plates 41 is less than two, the guide effect of the guide plates 41 is poor. When the number of guide plates 41 is more than three, the guide effect of the guide plates 41 on the air will not be significantly increased. At the same time, too many guide plates 41 will occupy too much space in the air outlet channel 15, affecting the smooth flow of air in the air outlet channel 15.

[0076] Therefore, the number of the guide plates 41 is set to two or three, so as to control the space occupied by the guide plates 41 in the air outlet channel 15 while ensuring that the guide plates 41 guide the air in the air outlet channel 15, thereby ensuring the smooth flow of air in the air outlet channel 15.

[0077] In some embodiments of the present application, the air outlet channel 15 is located on one side of the circumference of the wind wheel 21, the air outlet channel 15 and the accommodating chamber 13 are arranged in a first direction, and at least a portion of the air outlet channel 15 extends along the second direction. The first direction, the second direction and the axial direction of the wind wheel 21 are perpendicular to each other, so as to reasonably arrange the positions of the air outlet channel 15 and the accommodating chamber 13.

[0078] As shown in Figures 4 and 7, in this embodiment, the first direction extends along the up-down direction, and the air outlet channel 15 is located above the accommodating chamber 13. The second direction extends along the front-to-back direction, and at least a portion of the air outlet channel 15 extends along the front-to-back direction. The axial direction of the wind wheel 21 extends along the left-to-right direction. Driven by the wind wheel 21, the air in the accommodating chamber 13 flows upward and forward into the bent air outlet section 151, and the air in the air outlet channel 15 flows forward along the front-to-back direction to the designated area.

[0079] In some optional embodiments of the present application, the shell 10 includes a shell body 11 and a volute tongue 12, the shell body 11 has a first side wall 111 and a second side wall 112 arranged opposite to each other in the second direction, 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 second end of the volute tongue 12 and the second side wall 112 define the inlet of the air outlet channel 15, the inlet of the air outlet channel 15 is connected to the bent air outlet section 151 and the accommodating chamber 13, 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.

[0080] Specifically, the noise generated at the wind wheel 21 in the fan assembly is relatively large. Since the outlet of the air outlet channel 15 is connected to the designated area, the noise generated at the wind wheel 21 needs to pass through the air outlet channel 15 and be transmitted from the outlet of the air outlet channel 15 to the designated area. By setting the inlet of the air outlet channel 15 away from the outlet of the air outlet channel 15 and increasing the length of the air outlet channel 15, it is convenient to extend the time that the sound passes through the air outlet channel 15, and then consume the energy in the sound, so as to reduce the noise transmitted to the designated area by the wind wheel 21.

[0081] As shown in Figure 7, in this embodiment, the second direction extends along the front-to-back direction, the first side wall 111 is the front side wall of the shell body 11, and the second side wall 112 is the rear side wall of the shell body 11. The rear end of the volute tongue 12 and the rear side wall of the shell body 11 define the inlet of the air outlet channel 15. The outlet of the air outlet channel 15 is provided on the front side wall of the shell body 11. The air in the air outlet channel 15 flows forward along the front-to-back direction to the designated area.

[0082] In some specific embodiments of the present application, in the second direction, the distance between the end of the volute tongue 12 close to the second side wall 112 and the second side wall 112 is smaller than the distance between the end of the volute tongue 12 close to the second side wall 112 and the first side wall 111, so that the inlet of the air outlet channel 15 is set at a position close to the second side wall 112. Since the outlet of the air outlet channel 15 is located on the first side wall 111, the inlet of the air outlet channel 15 can be set away from the outlet of the air outlet channel 15.

[0083] Specifically, the noise generated at the wind wheel 21 is relatively large, and the inlet of the air outlet channel 15 is set away from the outlet of the air outlet channel 15. The noise at the wind wheel 21 needs to pass through the air outlet channel 15 before being transmitted to the designated area. This makes it easier to reduce the noise transmitted from the wind wheel 21 to the designated area.

[0084] In some specific embodiments of the present application, as shown in Figure 7, in the second direction, the distance between the end of the volute tongue 12 close to the second side wall 112 and the second side wall 112 is greater than the distance between the end of the guide portion 40 close to the second side wall 112 and the second side wall 112, so as to avoid the volute tongue 12 blocking the guide portion 40, so that the guide portion 40 can fully guide the air at the bent air outlet section 151.

[0085] Specifically, the second end of the volute tongue 12 and the second side wall 112 define the inlet of the air outlet channel 15, so that the distance between the end of the volute tongue 12 close to the second side wall 112 and the second side wall 112 is greater than the distance between the end of the guide portion 40 close to the second side wall 112 and the second side wall 112, so as to avoid the volute tongue 12 blocking the guide portion 40 when the air in the accommodating cavity 13 enters the bent air outlet section 151 through the inlet of the air outlet channel 15, so that the guide portion 40 can fully guide the air in the bent air outlet section 151.

[0086] In some specific embodiments of the present application, as shown in Figures 1 and 4, the shell body 11 includes a first volute 116 and a second volute 117. The first volute 116 and the second volute 117 are arranged relative to each other to define a accommodating chamber 13 and an air outlet channel 15. The shell body 10 also includes a first sound insulation cover 181 and a second sound insulation cover 182. A first sound absorption chamber is defined between the first sound insulation cover 181 and the outer side of the first volute 116, and a second sound absorption chamber is defined between the second sound insulation cover 182 and the second volute 117. Sound absorbing members 50 are provided in the first sound absorption chamber and the second sound absorption chamber. The vibration in the air outlet channel 15 can enter the first sound absorption chamber or the second sound absorption chamber through the air hole 114, so that the sound absorbing members 50 in the first sound absorption chamber and the second sound absorption chamber can buffer the vibration, absorb the sound in the air outlet channel 15, and perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0087] In some embodiments, the first sound insulation cover 181 is provided on the left side of the first volute 116. The first sound insulation cover 181 and the first volute 116 define a first sound absorption chamber. The first sound absorption chamber is located on the left side of the air outlet channel 15. The left side wall of the first volute 116 is a first grille structure. The first grille structure defines a plurality of first air holes. The air outlet channel 15 is connected to the first sound absorption chamber through the first air holes. The vibration in the air outlet channel 15 can enter the first sound absorption chamber through the first air holes, thereby enabling the sound absorbing member 50 in the first sound absorption chamber to buffer the vibration, absorb the sound in the air outlet channel 15, and perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0088] The second sound insulation cover 182 is arranged on the right side of the second volute 117. The second sound insulation cover 182 and the second volute 117 define a second sound absorption chamber. The second sound absorption chamber is located on the right side of the air outlet channel 15. The right side wall of the second volute 117 is a second grille structure. The second grille structure defines a plurality of second air holes. The air outlet channel 15 is connected to the second sound absorption chamber through the second air holes. The vibration in the air outlet channel 15 can enter the second sound absorption chamber through the second air holes, thereby enabling the sound absorbing member 50 in the second sound absorption chamber to buffer the vibration, absorb the sound in the air outlet channel 15, and perform noise reduction treatment on the air outlet channel 15, thereby reducing the noise transmitted from the outlet of the air outlet channel 15 and reducing the noise transmitted to the designated area.

[0089] In some embodiments, as shown in FIG. 1 and FIG. 6 , the first volute 116 and the second volute 117 are fixedly connected together by a snap-fit ​​structure, and the first soundproof cover 181 and the first volute 116 are fixedly connected together by a snap-fit ​​structure.

[0090] Among them, a plurality of first clamping arms 1163 are provided on the circumference of the right side of the first volute 116, and the first clamping arms 1163 define a first clamping groove, and a plurality of first clamping protrusions 1172 are provided on the circumference of the left side of the second volute 117. When the first volute 116 and the second volute 117 need to be installed together, the relative positions of the first volute 116 and the second volute 117 can be determined according to the positions of the first clamping protrusion 1172 and the first clamping arm 1163, and then the first volute 116 and the second volute 117 are translated so that the two move in a direction close to each other. When the first clamping protrusion 1172 is engaged with the first clamping groove, the first volute 116 and the second volute 117 are installed together.

[0091] When it is necessary to separate the first volute 116 and the second volute 117, the first clamping arm 1163 can be operated first to disengage the first clamping protrusion 1172 from the first clamping groove, and then the first volute 116 and the second volute 117 can be translated to move them away from each other, thereby achieving the separation of the first volute 116 and the second volute 117.

[0092] A plurality of second clamping arms 1812 are provided on the circumference of the right side of the first sound insulation cover 181, and the second clamping arms 1812 define a second clamping groove. A plurality of second clamping protrusions 1162 are provided on the circumference of the left side of the first volute 116. When it is necessary to install the first sound insulation cover 181 and the first volute 116 together, the relative positions of the first sound insulation cover 181 and the first volute 116 can be determined according to the positions of the second clamping protrusions 1162 and the second clamping arms 1812, and then the first sound insulation cover 181 and the first volute 116 are translated so that the two move in a direction approaching each other. When the second clamping protrusions 1162 are engaged with the second clamping grooves, the first sound insulation cover 181 and the first volute 116 are installed together.

[0093] When it is necessary to separate the first sound insulation cover 181 and the first volute 116, the second clamping arm 1812 can be operated first to disengage the second clamping protrusion 1162 from the second clamping groove, and then the first sound insulation cover 181 and the first volute 116 can be translated to move them away from each other, thereby achieving the separation of the first sound insulation cover 181 and the first volute 116.

[0094] In other embodiments, a first mounting lug is provided on the left side of the first volute 116, and a second mounting lug is provided on the first sound insulation cover 181. Fasteners are passed through the first mounting lug and the second mounting lug to fix the first sound insulation cover 181 and the first volute 116 together.

[0095] A first mounting lug is provided on the right side of the second volute 117 , and a second mounting lug is provided on the second sound insulation cover 182 . Fasteners are passed through the first mounting lug and the second mounting lug to fix the second sound insulation cover 182 and the second volute 117 together.

[0096] A first lug is provided on the right side of the first volute 116 , and a second lug is provided on the left side of the second volute 117 . A fastener can pass through the first lug and the second lug to fix the first volute 116 and the second volute 117 together.

[0097] In some specific embodiments of the present application, as shown in Figures 4 and 5, one of the first sound insulation cover 181 and the first volute 116 has a first limiting step 1161 surrounding the first sound absorption cavity, and the other of the first sound insulation cover 181 and the first volute 116 has a first matching step 1811. The first matching step 1811 cooperates with the first limiting step 1161 to confirm the relative positions of the first sound insulation cover 181 and the first volute 116 through the first limiting step 1161 and the first matching step 1811, so that the first sound insulation cover 181 and the first volute 116 can be quickly assembled together.

[0098] In some embodiments, the first sound insulation cover 181 is provided on the left side of the first volute 116, and the first sound insulation cover 181 and the first volute 116 define a first sound absorption chamber. The upper and lower ends of the left side of the first volute 116 are provided with first limiting steps 1161, and the upper and lower ends of the right side of the first sound insulation cover 181 are provided with first matching steps 1811. When the first volute 116 and the first sound insulation cover 181 are installed together, the first matching step 1811 is stopped and matched with the first limiting step 1161 to limit the position of the first sound insulation cover 181 relative to the first volute 116 in the left and right directions and the up and down directions, so as to determine the relative position of the first volute 116 and the first sound insulation cover 181, so that the first volute 116 and the first sound insulation cover 181 can be quickly and accurately installed together.

[0099] In some specific embodiments of the present application, one of the second sound insulation cover 182 and the second volute 117 has a second limiting step 1171 surrounding the second sound absorption cavity, and the other of the second sound insulation cover 182 and the second volute 117 has a second matching step 1821. The second matching step 1821 matches with the second limiting step 1171 to confirm the relative position of the second sound insulation cover 182 and the second volute 117 through the second limiting step 1171 and the second matching step 1821, so that the second sound insulation cover 182 and the second volute 117 can be quickly assembled together.

[0100] In some embodiments, the second sound insulation cover 182 is arranged on the right side of the second volute 117, and the second sound insulation cover 182 and the second volute 117 define a second sound absorption chamber. The upper end and the lower end of the right side of the second volute 117 are provided with a second limiting step 1171, and the upper end and the lower end of the left side of the second sound insulation cover 182 are provided with a second matching step 1821. When the second volute 117 and the second sound insulation cover 182 are installed together, the second matching step 1821 is stopped and matched with the second limiting step 1171 to limit the position of the second sound insulation cover 182 relative to the second volute 117 in the left and right directions and the up and down directions, so as to determine the relative position of the second volute 117 and the second sound insulation cover 182, so that the second volute 117 and the second sound insulation cover 182 can be quickly and accurately installed together.

[0101] In some embodiments, as shown in Figures 4 and 5, a step portion 1164 is provided on the right side of the first volute 116, and a step matching portion 1174 is provided on the left side of the second volute 117. When the first volute 116 and the second volute 117 are installed together, the step portion 1164 and the step matching portion 1174 are stopped and matched to limit the position of the second volute 117 relative to the first volute 116 in the left and right directions and the up and down directions, so that the relative positions of the first volute 116 and the second volute 117 can be determined, so that the first volute 116 and the second volute 117 can be installed together quickly and accurately.

[0102] In some specific embodiments of the present application, as shown in Figure 4, the shell 10 also includes an air inlet shell 19, and the air inlet shell 19 and the first sound insulation cover 181 are both arranged on the outside of the first volute 116, and the air inlet shell 19 and the first volute 116 define an air inlet channel 14.

[0103] As shown in Figure 4, in this embodiment, the first sound insulation cover 181 and the air inlet shell 19 are both arranged on the left side of the first volute 116, and the air inlet shell 19 is located below the first sound insulation cover 181. The first sound insulation cover 181 and the first volute 116 define a first sound absorption cavity, and the first sound absorption cavity is located on the left side of the air outlet channel 15. The air inlet shell 19 and the first volute 116 define an air inlet channel 14, and the air inlet channel 14 is located on the left side of the accommodating cavity 13.

[0104] In some embodiments, as shown in Figure 4, the inner wall surface of the air inlet channel 14 facing the accommodating chamber 13 includes a first wall surface 143 and a second wall surface 144. The first wall surface 143 is at least partially staggered with the inlet of the accommodating chamber 13, and the second wall surface 144 is opposite to the inlet of the accommodating chamber 13. The second wall surface 144 is connected to the downstream of the first wall surface 143 in the airflow direction. The second wall surface 144 is along the axial direction of the wind wheel 21. The second wall surface 144 extends obliquely from the first wall surface 143 toward the accommodating chamber 13 in a direction away from the first wall surface 143, so that the second wall surface 144 is used to guide the air in the air inlet channel 14, so that the air can flow smoothly along the second wall surface 144 to the inlet of the accommodating chamber 13, so that the air in the air inlet channel 14 can quickly enter the accommodating chamber 13 from the inlet of the accommodating chamber 13, so as to ensure the orderly flow of air in the air inlet channel 14 and reduce the formation of vortex in the air inlet channel 14. On the one hand, it is convenient to increase the flow rate of air and on the other hand, it is convenient to reduce the generation of noise in the air inlet channel 14.

[0105] As shown in Figure 4, in this embodiment, the axial direction of the wind wheel 21 extends in the left-right direction, and the left inner wall of the air inlet channel 14 includes a first wall 143 and a second wall 144. The first wall 143 extends in the up-down direction, and the left end of the second wall 144 is connected to the upper end of the first wall 143. The second wall 144 extends upward from left to right, so that the air in the air inlet channel 14 can gradually flow to the right and upward along the second wall 144 into the accommodating cavity 13 (it should be understood here that the above-mentioned direction limitation is only for the convenience of describing the accompanying drawings, and will not limit the actual setting position and direction of the fresh air module 1 of the air conditioner). This makes it easy to ensure the orderly flow of air in the air inlet channel 14 and reduce the formation of vortices in the air inlet channel 14. On the one hand, it is easy to increase the flow rate of air, and on the other hand, it is easy to reduce the generation of noise in the air inlet channel 14.

[0106] In some embodiments, the air inlet housing 19 and the first sound insulation cover 181 are integrally formed, which makes it easy to reduce the number of parts of the fan assembly and reduce the complexity of the fan assembly structure. The first sound insulation cover 181 and the air inlet housing 19 can be directly installed at the same time, so that the first sound insulation cover 181 and the first volute 116 define a sound absorption cavity, and the air inlet housing 19 and the first volute 116 define an air inlet channel 14.

[0107] In some embodiments of the present application, the cross-sectional area of ​​at least a section of the air outlet channel 15 gradually increases along the direction of the air flow. This arrangement facilitates increasing the area of ​​the outlet of the air outlet channel 15. On the one hand, it facilitates reducing the resistance encountered by the air flowing in the air outlet channel 15, so that the air in the air outlet channel 15 can flow stably to the designated area. On the other hand, it facilitates expanding the air outlet area, so that the air in the air outlet channel 15 can flow evenly to the designated area.

[0108] The following describes the fresh air module 8 of the air conditioner according to the embodiment of the present application. The fresh air module 8 of the air conditioner according to the embodiment of the present application comprises a fan assembly and a filter 82 according to the above embodiment of the present application.

[0109] The inlet of the air inlet channel 14 is the fresh air inlet, and the filter element 82 is arranged in the air inlet channel 14. The filter element 82 can filter the air passing through the filter element 82 in the air inlet channel 14, thereby ensuring the cleanliness of the air entering the accommodating chamber 13, preventing unclean air from contaminating 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.

[0110] In some embodiments, the fresh air inlet includes a first fresh air inlet 811 and a second fresh air inlet 812. The first fresh air inlet 811 and the second fresh air inlet 812 are both connected to the air outlet channel 15. The first fresh air inlet 811 is connected to the room, and the second fresh air inlet 812 is connected to the outside.

[0111] A valve 62 and a motor unit 61 are also provided in the shell 10. The motor unit 61 cooperates with the valve 62 to control the movement of the valve 62, so that the valve 62 can switch between the first fresh air inlet 811 and the air inlet channel 14 or between the second fresh air inlet 812 and the air inlet channel 14.

[0112] When indoor air needs to be filtered, valve 62 connects the first fresh air inlet 811 to the air inlet duct 14. At this time, indoor air enters the air inlet duct 14 through the first fresh air inlet 811, is processed in the fan assembly, and then flows to the designated area along the air outlet duct 15. When fresh air needs to be introduced into the room, valve 62 connects the second fresh air inlet 812 to the air inlet duct 14. At this time, outdoor air enters the air inlet duct 14 through the second fresh air inlet 812, is processed in the fan assembly, and then flows to the designated area along the air outlet duct 15.

[0113] In some embodiments, the filter element 82 is placed obliquely in the air inlet channel 14, and the filter element 82 divides the air inlet channel 14 into a first air inlet chamber and a second air inlet chamber. The first air inlet chamber is connected to the fresh air inlet, and the second air inlet chamber is connected to the accommodating chamber 13. The air entering the first air inlet chamber from the fresh air inlet enters the second air inlet chamber after being filtered by the filter element 82, and enters the accommodating chamber 13 along the second air inlet chamber.

[0114] Among them, the filter element 82 is placed obliquely in the air inlet channel 14 to increase the contact area between the filter element 82 and the air in the first air inlet cavity, so as to improve the filtering efficiency of the filter element 82 on the air in the first air inlet cavity, so that the filter element 82 can fully and quickly filter the air in the first air inlet cavity.

[0115] In some embodiments, a side wall of the housing 10 is provided with an access port, which is connected to the air inlet channel 14 . The filter element 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 element 82 .

[0116] The fresh air module 8 of the air conditioner according to the embodiment of the present application has the following advantages by utilizing the fan assembly according to the above embodiment of the present application.

[0117] The air conditioner according to the embodiment of the present application is described below. The air conditioner according to the embodiment of the present application includes the fan assembly or the fresh air module 8 according to the above embodiment of the present application.

[0118] The air conditioner according to the embodiment of the present application has the following advantages by utilizing the fan assembly according to the above embodiment of the present application.

[0119] Other structures and operations of the air conditioner according to the embodiment of the present application are known to ordinary technicians in this field and will not be described in detail here.

[0120] In the description of the present application, 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", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more. In the description of the present application, a first feature being "above" or "below" a 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.

[0121] In the description of this application, a first feature “on”, “above” and “above” 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.

[0122] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0123] Throughout this specification, reference to terms such as "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 application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0124] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fan assembly, wherein: include: A housing, wherein the housing defines a receiving chamber, an air inlet passage, and an air outlet passage, wherein the receiving chamber is connected between the air inlet passage and the air outlet passage; A wind wheel and a motor, wherein the wind wheel is rotatably disposed in the accommodating cavity, and the motor is connected to the wind wheel to drive the wind wheel to rotate; Wherein, the air outlet channel includes a bent air outlet section, the air outlet channel is connected with the accommodating cavity through the bent air outlet section, a guide portion is provided in the air outlet channel, and at least a portion of the guide portion extends into the bent air outlet section.

2. The fan assembly according to claim 1, wherein: The guide portion includes a guide plate, the guide plate is oriented along the extension direction of the air outlet channel, the guide plate includes a bent guide section, and the bent guide section is located in the bent air outlet section.

3. The fan assembly according to claim 2, wherein: The air outlet channel also has a straight air outlet section, and the straight air outlet section is connected to the downstream of the bent air outlet section; Among them, the guide plate also includes a straight guide section, which is arranged in the straight air outlet section and extends along the length direction of the straight air outlet section. One end of the bent guide section is connected to the straight air outlet section and the other end extends toward the inlet of the air outlet channel.

4. The fan assembly according to claim 2 or 3, wherein: The number of the guide plate is one, or the number of the guide plates is multiple and the multiple guide plates are arranged at intervals in the width direction of the air outlet channel.

5. The fan assembly according to claim 4, wherein: The bent guide section is an arc guide section, and the centers of the arc guide sections of the plurality of guide plates coincide with each other and the corresponding center angles are equal.

6. The fan assembly according to claim 4 or 5, wherein: Among two adjacent guide plates, the extension length of the guide plate close to the accommodating cavity is smaller than the extension length of the guide plate far from the accommodating cavity.

7. The fan assembly according to any one of claims 4 to 6, wherein: The number of the guide plates is less than six.

8. The fan assembly according to claim 7, wherein: The number of the guide plates is two or three.

9. The fan assembly according to any one of claims 1 to 8, wherein: The air outlet channel is located on one side of the circumference of the wind wheel and is arranged with the accommodating cavity in a first direction. At least a portion of the air outlet channel extends along a second direction. The first direction, the second direction and the axial direction of the wind wheel are perpendicular to each other.

10. The fan assembly according to claim 9, wherein: The housing comprises: a shell body, the shell body having a first side wall and a second side wall arranged opposite to each other in the second direction, and an outlet of the air outlet channel is arranged on the first side wall; A volute tongue, wherein the first end of the volute tongue is connected to the first side wall and the second end extends toward the second side wall, the second end of the volute tongue and the second side wall define the inlet of the air outlet channel, and the inlet of the air outlet channel connects the bent air outlet section and the accommodating cavity.

11. The fan assembly according to claim 10, wherein: In the second direction, a distance between one end of the volute tongue close to the second side wall and the second side wall is smaller than a distance between one end of the volute tongue close to the second side wall and the first side wall.

12. The fan assembly according to claim 10 or 11, wherein: In the second direction, a distance between an end of the volute tongue close to the second side wall and the second side wall is greater than a distance between an end of the guide portion close to the second side wall and the second side wall.

13. The fan assembly according to any one of claims 1 to 12, wherein: The cross-sectional area of ​​at least one section of the air outlet channel gradually increases along the airflow direction.

14. A fresh air module for an air conditioner, wherein: include: A fan assembly, wherein the fan assembly is a fan assembly according to any one of claims 1 to 13, and the inlet of the air inlet channel is a fresh air inlet; A filter element is arranged in the air inlet passage.

15. An air conditioner, wherein: It comprises a fan assembly according to any one of claims 1 to 13; or, it comprises a fresh air module of an air conditioner according to claim 14.

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