Fan module, air exchange device, and air conditioning apparatus

Abstract

The application discloses a fan module, an air exchange device and an air conditioning equipment. The fan module comprises a volute, a fan wheel, a first air duct patch plate and a second air duct patch plate. The volute is provided with a volute inlet, a first volute outlet and a second volute outlet. The volute is further provided with a first air duct plate and a second air duct plate located on opposite sides of the fan wheel. The first air duct patch plate has a first working position for shielding between the fan wheel and the second air duct plate to form a first air duct with the first air duct plate and connected to the first volute outlet, and a first rest position for at least partially withdrawing from the first working position, and the first air duct patch plate is movable relative to the volute to switch between the first working position and the first rest position. The second air duct patch plate has a second working position for shielding between the fan wheel and the first air duct plate to form a second air duct with the second air duct plate and connected to the second volute outlet, and a second rest position for at least partially withdrawing from the second working position, and the second air duct patch plate is movable relative to the volute to switch between the second working position and the second rest position.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning equipment, and particularly relates to a fan module, an air exchange device and air conditioning equipment. BACKGROUND

[0002] The fan module is a structure applied to drive airflow to flow. In the related art, some fan modules are provided with two volute outlets, and are correspondingly provided with switch doors at the two volute outlets. The switch doors are used to control the opening and closing of the volute outlets, so as to realize air outlet from different volute outlets. However, the profile of the volute air duct of the conventional fan module is usually designed according to the path of the airflow thrown out by the impeller. After two volute outlets are opened on the fan module, the profile of the volute air duct is damaged, so that the airflow is not easy to be smoothly guided from the volute air duct to the volute outlet, and thus the air volume of the fan module is greatly reduced. SUMMARY

[0003] The main purpose of the present application is to provide a fan module, which aims to solve the problem that the profile of the volute air duct of the conventional fan module is damaged due to the design of the double volute outlets.

[0004] To achieve the above-mentioned purpose, the present application provides a fan module, an air exchange device and air conditioning equipment. The fan module comprises a volute, an impeller, a first air duct patch plate and a second air duct patch plate. The volute is provided with a volute inlet, a first volute outlet and a second volute outlet. The impeller is arranged in the volute. The volute is further provided with a first air duct plate and a second air duct plate located on opposite sides of the impeller. The first air duct patch plate has a first working position for shielding between the impeller and the second air duct plate to form a first air duct with the first air duct plate, which communicates with the first volute outlet, and a first rest position for at least partially withdrawing from the first working position. The first air duct patch plate is movable relative to the volute to switch between the first working position and the first rest position. The second air duct patch plate has a second working position for shielding between the impeller and the first air duct plate to form a second air duct with the second air duct plate, which communicates with the second volute outlet, and a second rest position for at least partially withdrawing from the second working position. The second air duct patch plate is movable relative to the volute to switch between the second working position and the second rest position.

[0005] Optionally, the first air duct plate comprises a first arc portion and a first air outlet portion extending from one end of the first arc portion along the tangential direction of the impeller. The first air duct patch plate comprises a first patch portion for abutting the other end of the first arc portion to surround the impeller, and a first air guide portion extending from the first patch portion towards the first volute outlet, which is used to define an outlet end of the first air duct with the first air outlet portion.

[0006] Optionally, the second air duct plate comprises a second arc portion and a second air outlet portion extending from one end of the second arc portion in a tangential direction of the impeller; the second air duct complementary plate comprises a second complementary portion for abutting the other end of the second arc portion to enclose the impeller, and a second air guide portion extending from the second complementary portion towards the second volute outlet, the second air guide portion being used to define an outlet end of the second air duct with the second air outlet portion.

[0007] Optionally, an included angle between an extension direction of the first air outlet portion of the first air duct plate and an extension direction of the second air outlet portion of the second air duct plate is greater than or equal to 90° and less than or equal to 150°.

[0008] Optionally, the first air duct plate further comprises a first volute tongue portion extending outwards from one end of the first arc portion for abutting the first complementary portion, the first volute tongue portion and an end of the second air outlet portion forming the second volute outlet.

[0009] Optionally, the second air duct plate further comprises a second volute tongue portion extending outwards from one end of the second arc portion for abutting the second complementary portion, the second volute tongue portion and an end of the first air outlet portion forming the first volute outlet.

[0010] Optionally, the volute comprises a bottom shell and a shell cover covering the bottom shell; one of the bottom shell and the shell cover is provided with a first movable slot for the first air duct complementary plate to move in a thickness direction thereof, and the other is provided with a second movable slot for the second air duct complementary plate to move in the same direction.

[0011] Optionally, the bottom shell is provided with the first movable slot; a height of the first air duct complementary plate in an axial direction of the impeller is greater than a distance between the first movable slot and the shell cover.

[0012] Optionally, the shell cover is provided with the second movable slot; a height of the second air duct complementary plate in the axial direction of the impeller is greater than a distance between the second movable slot and the bottom shell.

[0013] Optionally, when the first air duct complementary plate is in the first rest position, the first air duct complementary plate blocks the first movable slot; and / or, when the second air duct complementary plate is in the second rest position, the second air duct complementary plate blocks the second movable slot.

[0014] Optionally, the fan module comprises two driving assemblies, one of the driving assemblies is connected with the first air duct complementary plate, and the other driving assembly is connected with the second air duct complementary plate, so that the first air duct complementary plate and the second air duct complementary plate can move independently.

[0015] Optionally, the driving assembly comprises a motor, a gear and a rack; wherein the motor is installed on the volute; the gear is fixed on the motor shaft of the motor; the rack is fixed on the first air duct patch or the second air duct patch and engaged with the gear.

[0016] Optionally, the fan module further comprises a driving assembly and a linkage assembly; wherein the first air duct patch is connected with the second air duct patch through the linkage assembly; the driving assembly is connected with the first air duct patch or the second air duct patch, so that when the driving assembly drives the first air duct patch to move to the first station, the second air duct patch is driven to move to the second station through the linkage assembly.

[0017] Optionally, the air inlet and the first air outlet are used to communicate with the indoor; the second air outlet is used to communicate with the outdoor.

[0018] Optionally, the shell further comprises a bypass air duct and a partition plate; the partition plate can divide the bypass air duct into an indoor cavity communicating with the air inlet and the volute inlet, and an outdoor cavity communicating with the second air outlet and the second volute outlet; the partition plate is movable relative to the shell to switch between a working position and an avoiding position; wherein: in the working position, the indoor cavity and the outdoor cavity are not communicated; in the avoiding position, the indoor cavity and the outdoor cavity are communicated.

[0019] Optionally, the air exchange device further comprises an air inlet valve for opening and closing the air inlet; the air inlet valve and the partition plate are linked and arranged, so that when the partition plate switches to the working position, the air inlet valve is driven to open the air inlet.

[0020] Optionally, a rotating shaft is arranged on the shell; the air inlet valve and the partition plate are arranged on opposite sides of the rotating shaft and are fixed with the rotating shaft.

[0021] Optionally, the air exchange device has at least one or more of an indoor air mode, a fresh air mode and an exhaust air mode; wherein:

[0022] In the indoor air mode, the air inlet is communicated with the indoor cavity of the bypass air duct, the volute inlet of the fan module, the first air duct, the first volute outlet and the first air outlet to form an indoor air air path.

[0023] In the fresh air mode, the first air outlet is communicated with the bypass air duct, the volute inlet of the fan module, the first air duct, the first volute outlet and the first air outlet to form a fresh air air path.

[0024] In the air exhaust mode, the air inlet is communicated with the indoor cavity of the bypass air duct, the volute inlet of the fan module, the second air duct, the second volute outlet, the outdoor cavity of the bypass air duct, and the second air outlet to form an air exhaust air path.

[0025] Optionally, the air conditioning device is an air conditioner or an air purifier. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in these drawings without creative labor.

[0027] Figure 1 Structure schematic diagram of an embodiment of the fan module of the present application;

[0028] Figure 2 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 1 Structure exploded schematic diagram of the fan module;

[0029] Figure 3 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 1 Front view of the fan module in the first air outlet mode;

[0030] Figure 4 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 3 Side view of the fan module;

[0031] Figure 5 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 4 Sectional view along line A-A;

[0032] Figure 6 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 5 Detail view of the fan module;

[0033] Figure 7 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 5 Schematic diagram of the included angle between the extension directions of the first air outlet part and the second air outlet part of the fan module;

[0034] Figure 8 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 1 Structure schematic diagram of the fan module in the second air outlet mode;

[0035] Figure 9 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 8 Front view of the fan module;

[0036] Figure 10 Structure schematic diagram of an embodiment of the fan module of the present application; Figure 9 Side view of the fan module;

[0037] Figure 11 Fig. 1 is a perspective view of a ventilation device according to the present application; Figure 10 Fig. 2 is a sectional view along the line B-B in Fig. 1 ;

[0038] Figure 12 Fig. 3 is a detail view of a fan module in Fig. 1 ; Figure 11 Fig. 4 is a sectional view along the line C-C in Fig. 1 ;

[0039] Figure 13 Fig. 5 is a structural schematic view of an embodiment of the ventilation device according to the present application;

[0040] Figure 14 Fig. 6 is a structural exploded schematic view of the ventilation device according to the present application; Figure 13 Fig. 7 is a sectional view along the line D-D in Fig. 1 ;

[0041] Figure 15 Fig. 8 is a schematic view of the ventilation device according to the present application in an indoor air mode; Figure 13 Fig. 9 is a schematic view of the ventilation device according to the present application in an exhaust air mode; Fig. 10 is a sectional view along the line E-E in Fig. 1 ;

[0042] Fig. 11 is a schematic view of the ventilation device according to the present application in a fresh air mode; Figure 16 Fig. 12 is a top view of the ventilation device according to the present application; Figure 15 Fig. 13 is a sectional view along the line F-F in Fig. 1 ; Fig. 14 is a schematic view of the ventilation device according to the present application in another perspective view;

[0043] Fig. 15 is a sectional view along the line G-G in Fig. 1 ; Figure 17 Fig. 16 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 16 Fig. 17 is a sectional view along the line H-H in Fig. 1 ; Fig. 18 is a schematic view of the ventilation device according to the present application in another perspective view;

[0044] Fig. 19 is a sectional view along the line I-I in Fig. 1 ; Figure 18 Fig. 20 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 13 Fig. 21 is a sectional view along the line J-J in Fig. 1 ; Fig. 22 is a schematic view of the ventilation device according to the present application in another perspective view;

[0045] Fig. 23 is a sectional view along the line K-K in Fig. 1 ; Figure 19 Fig. 24 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 18 Fig. 25 is a sectional view along the line L-L in Fig. 1 ; Fig. 26 is a schematic view of the ventilation device according to the present application in another perspective view;

[0046] Fig. 27 is a sectional view along the line M-M in Fig. 1 ; Figure 20 Fig. 28 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 18 Fig. 29 is a sectional view along the line N-N in Fig. 1 ; Fig. 30 is a schematic view of the ventilation device according to the present application in another perspective view;

[0047] Fig. 31 is a sectional view along the line O-O in Fig. 1 ; Figure 21 Fig. 32 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 20 Fig. 33 is a sectional view along the line P-P in Fig. 1 ; Fig. 34 is a schematic view of the ventilation device according to the present application in another perspective view;

[0048] Fig. 35 is a sectional view along the line Q-Q in Fig. 1 ; Figure 22 Fig. 36 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 21 Fig. 37 is a sectional view along the line R-R in Fig. 1 ; Fig. 38 is a schematic view of the ventilation device according to the present application in another perspective view;

[0049] Fig. 39 is a sectional view along the line S-S in Fig. 1 ; Figure 23 Fig. 40 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 13 Fig. 41 is a sectional view along the line T-T in Fig. 1 ; Fig. 42 is a schematic view of the ventilation device according to the present application in another perspective view;

[0050] Fig. 43 is a sectional view along the line U-U in Fig. 1 ; Figure 24 Fig. 44 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 23 Fig. 45 is a sectional view along the line V-V in Fig. 1 ; Fig. 46 is a schematic view of the ventilation device according to the present application in another perspective view;

[0051] Fig. 47 is a sectional view along the line W-W in Fig. 1 ; Figure 25 Fig. 48 is a schematic view of the ventilation device according to the present application in another perspective view; Figure 24 Fig. 49 is a sectional view along the line X-X in Fig. 1 ; Fig. 50 is a schematic view of the ventilation device according to the present application in another perspective view;

[0052] BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Reference Name Reference Name 100 Fan module 150 First air duct patch 110 Volute 151 First patch 111 Bottom shell 152 First air inlet portion 112 Shell cover 160 Second air duct patch 101 Volute inlet 161 Second patch 102 First volute outlet 162 Second air inlet portion 103 Second volute outlet 170 Driving assembly 104 First air duct 171 Motor 105 Second air duct 172 Gear 106 First movable slot 173 Rack 107 Second movable slot 200 Ventilation device 108 Avoidance gap 210 Shell 120 Impeller 211 Air inlet 130 First air duct plate 212 First air outlet 131 First arc portion 213 Second air outlet 132 First air outlet portion 214 Bypass air duct 133 First volute tongue portion 214a Indoor cavity 140 Second air duct plate 214b Outdoor cavity 141 Second arc portion 220 Partition plate 142 Second air outlet portion 230 Air inlet valve 143 Second volute tongue portion 240 Rotary shaft

[0054] The objectives, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0056] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings). If the certain posture changes, the directional indications also change accordingly.

[0057] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combined technical solutions contradict each other or cannot be realized, it should be considered that the combined technical solutions do not exist, and are also not within the protection scope of the present application.

[0058] In the related art, a conventional fan module with two volute outlets generally has two switch doors respectively arranged at the two volute outlets to control the opening and closing of the volute outlets through the switch doors to realize air outlet from different volute outlets. For example, one switch door closes the volute outlet corresponding thereto, and the other switch door opens the volute outlet corresponding thereto. However, the fan module also has two air duct notches on the circumferential wall of the volute air duct, which lead to the two volute outlets, respectively. This will destroy the profile of the volute air duct, resulting in a large resistance to airflow flowing in the volute air duct. Therefore, when the fan module blows air from any one volute outlet, the air blown by the fan wheel will be affected by the air duct notches and cannot flow smoothly along the inner wall of the air duct, thereby greatly reducing the air volume of the fan module.

[0059] The present application provides a fan module, which has at least two volute outlets and can switch air flow to blow out from any one of the volute outlets. The volute air duct of the fan module is not affected by the two volute outlets or is less affected, so that the driving air flow of the fan module can be smoothly guided to the volute outlet through the volute air duct, thereby making the fan module obtain a higher air output.

[0060] Please refer to Figures 1-3 In an embodiment of the fan module of the present application, the fan module 100 comprises a volute 110, an impeller 120, a first air duct cover plate 150 and a second air duct cover plate 160. The volute 110 is provided with a volute inlet 101, a first volute outlet 102 and a second volute outlet 103. The impeller 120 is arranged in the volute 110, and the volute 110 is further provided with a first air duct plate 130 and a second air duct plate 140 located at opposite sides of the impeller 120. The first air duct cover plate 150 has a first working position for shielding between the impeller 120 and the second air duct plate 140 to form a first air duct 104 with the first air duct plate 130 to communicate with the first volute outlet 102, and a first rest position for at least partially withdrawing from the first working position. The first air duct cover plate 150 is movable relative to the volute 110 to switch between the first working position and the first rest position. The second air duct cover plate 160 has a second working position for shielding between the impeller 120 and the first air duct plate 130 to form a second air duct 105 with the second air duct plate 140 to communicate with the second volute outlet 103, and a second rest position for at least partially withdrawing from the second working position. The second air duct cover plate 160 is movable relative to the volute 110 to switch between the second working position and the second rest position.

[0061] Specifically, the side surface of the volute 110 is provided with the volute inlet 101, which is arranged opposite to one end of the impeller 120, so that the air flow entering from the volute inlet 101 can be directly sucked into the inside of the impeller 120. The first air duct cover plate 150 is movably mounted on the volute 110, so that the first air duct cover plate 150 is movable relative to the volute 110 to switch between the first working position and the first rest position. The second air duct cover plate 160 is movably mounted on the volute 110, so that the second air duct cover plate 160 is movable relative to the volute 110 to switch between the second working position and the second rest position. By switching the positions of the first air duct cover plate 150 and the second air duct cover plate 160, the air ducts communicating with the volute outlets at different positions can be formed at the outer periphery of the impeller 120, so that the fan module 100 can blow out from the volute outlets at different positions to have a first air output mode and a second air output mode.

[0062] When the fan module 100 works in the first air outlet mode, the first air duct patch 150 is moved to the first position, and the second air duct patch 160 is moved to the second position; at this time, since the first air duct patch 150 is blocked between the second air duct plate 140 and the wind wheel 120, the first air duct patch 150 blocks the air duct gap of the volute 110 between the wind wheel 120 and the second volute outlet 103, and the airflow blown out of the wind wheel 120 cannot flow to the second volute outlet 103; at the same time, the first air duct patch 150 and the first air duct plate 130 cooperatively enclose the wind wheel 120, thereby forming the first air duct 104 in communication with the first volute outlet 102 together with the first air duct plate 130. Therefore, after the wind wheel 120 is started, the wind wheel 120 drives the airflow to enter the wind wheel 120 from the volute inlet 101 of the fan module 100, to be thrown out to the first air duct 104 by the wind wheel 120, and finally to flow to the first volute outlet 102 from the first air duct 104, so as to realize blowing out of air from the first volute outlet 102.

[0063] When the fan module 100 works in the second air outlet mode, the second air duct patch 160 is moved to the second position, and the first air duct patch 150 is moved to the first position; at this time, since the second air duct patch 160 is blocked between the first air duct plate 130 and the wind wheel 120, the second air duct patch 160 blocks the air duct gap of the volute 110 between the wind wheel 120 and the first volute outlet 102, and the airflow blown out of the wind wheel 120 cannot flow to the first volute outlet 102; at the same time, the second air duct patch 160 and the second air duct plate 140 cooperatively enclose the wind wheel 120, thereby forming the second air duct 105 in communication with the second volute outlet 103 together with the second air duct plate 140. Therefore, after the wind wheel 120 is started, the wind wheel 120 drives the airflow to enter the wind wheel 120 from the volute inlet 101 of the fan module 100, to be thrown out to the second air duct 105 by the wind wheel 120, and finally to flow to the second volute outlet 103 from the second air duct 105, so as to realize blowing out of air from the second volute outlet 103.

[0064] It can be understood that the first air duct patch 150 should be an air duct plate with an air duct profile designed in accordance with the flow direction of the airflow thrown out by the wind wheel 120, so that the first air duct patch 150 and the first air duct plate 130 can be enclosed to form the first air duct 104 with a complete air duct profile, so that the first air duct 104 is not easily affected by the second volute outlet 103. Similarly, the second air duct patch 160 should also be an air duct plate with an air duct profile designed in accordance with the flow direction of the airflow thrown out by the wind wheel 120, so that the second air duct patch 160 and the second air duct plate 140 can be enclosed to form the second air duct 105 with a complete air duct profile, so that the second air duct 105 is not easily affected by the first volute outlet 102.

[0065] The first volute outlet 102 of the fan module 100 can be used to communicate with the indoor space, and the second volute outlet 103 can be used to communicate with the outdoor space. In this way, when the fan module 100 works in the first air outlet mode, the fan module 100 can suck the air in the indoor space through the volute inlet 101 and send the air to the indoor space through the first volute outlet 102; and when the fan module 100 is switched to the second air outlet mode, the air in the indoor space can be sucked through the volute inlet 101 and discharged to the outdoor space through the second volute outlet 103. Of course, in other embodiments, the first volute outlet 102 and the second volute outlet 103 of the fan module 100 can both be used to communicate with the indoor space. In this way, when the fan module 100 works in the first air outlet mode, the fan module 100 can send air to one of the areas in the indoor space through the first volute outlet 102; and when the fan module 100 is switched to the second air outlet mode, the fan module 100 can send air to another area through the second volute outlet 103, thereby achieving air supply to different directions in the indoor space.

[0066] The technical scheme of the present application is that the first air duct baffle 150 and the second air duct baffle 160 are arranged on the volute 110 of the fan module 100; the first air duct baffle 150 is movably arranged on the volute 110 and can be switched between a first working position and a first rest position; in the first working position, the first air duct baffle 150 blocks the space between the fan wheel 120 of the fan module 100 and the second air duct baffle 140, and together with the first air duct baffle 130 forms a first air duct 104 that communicates with the first volute outlet 102; in the first rest position, the first air duct baffle 150 at least partially exits the first working position. The second air duct baffle 160 is movably arranged on the volute 110 and can be switched between a second working position and a second rest position; in the second working position, the second air duct baffle 160 blocks the space between the fan wheel 120 of the fan module 100 and the first air duct baffle 130, and together with the second air duct baffle 140 forms a second air duct 105 that communicates with the second volute outlet 103; in the second rest position, the second air duct baffle 160 at least partially exits the second working position. In this way, by moving the first air duct baffle 150 to the first working position and moving the second air duct baffle 160 to the second rest position, the airflow of the fan module 100 can flow from the first air duct 104 formed by the first air duct baffle 150 and the first air duct baffle 130 to the first volute outlet 102; and by moving the second air duct baffle 160 to the second working position and moving the first air duct baffle 150 to the first rest position, the airflow of the fan module 100 can flow from the second air duct 105 formed by the second air duct baffle 160 and the second air duct baffle 140 to the second volute outlet 103.

[0067] Therefore, the fan module 100 can guide the air from the two volute outlets to the volute outlets by the air ducts with complete air duct lines, so that the line of the volute air duct of the fan module 100 is not affected by the two volute outlets or is less affected, thereby ensuring that the fan module 100 can obtain a higher air output.

[0068] For the shape structure of the first air duct supplement plate 150, the shape structure of the first air duct supplement plate 150 should be designed in combination with the shape structure of the first air duct plate 130 and the airflow direction of the wind wheel 120. In an embodiment, the first air duct plate 130 includes a first arc portion 131 and a first air outlet portion 132 extending from one end of the first arc portion 131 in the tangential direction of the wind wheel 120; the first air duct supplement plate 150 includes a first supplement portion 151 for abutting the other end of the first arc portion 131 to surround the wind wheel 120, and a first air guide portion 152 extending from the first supplement portion 151 towards the first volute outlet 102, the first air guide portion 152 being used to define the outlet end of the first air duct 104 with the first air outlet portion 132.

[0069] Specifically, the first air duct plate 130 and the second air duct plate 140 are respectively located on opposite sides of the wind wheel 120; the first arc portion 131 of the first air duct plate 130 is arranged in an arc shape and surrounds one side of the wind wheel 120 in a half-enclosing manner, and the first air outlet portion 132 of the first air duct supplement plate 150 extends out along the tangential direction of the wind wheel 120 through the end of the first arc portion 131 away from the second volute outlet 103. The first supplement portion 151 of the first air duct supplement plate 150 is also arranged in an arc shape; when the first air duct supplement plate 150 is moved to the first working position, the first supplement portion 151 of the first air duct supplement plate 150 surrounds the other side of the wind wheel 120 in a half-enclosing manner and abuts the end of the first arc portion 131 of the first air duct plate 130 close to the second volute outlet 103, so that the first supplement portion 151 and the first arc portion 131 abut to form an annular air duct wall surrounding the wind wheel 120. The first air guide portion 152 of the first air duct supplement plate 150 extends out towards the first volute outlet 102 through the other end of the first supplement portion 151, thereby spacing the first air guide portion 152 and the first air outlet portion 132 to define the outlet end of the first air duct 104, at this time, the first air guide portion 152 and the first air outlet portion 132 form linear air duct walls, and the linear air duct walls and the annular air duct wall combine to form the complete air duct line of the first air duct 104.

[0070] Based on this, when the fan module 100 works in the first air outlet mode, the airflow spun by the impeller 120 is first compressed and guided to the outlet end of the first air duct 104 between the first air outlet part 132 and the first air guiding part 152 by the annular air duct wall formed by the first supplement part 151 and the first arc part 131, and then guided to the first volute outlet 102 by the linear air duct wall formed by the two parts, and blown out. In this process, the airflow flows smoothly and is not easily affected by the second volute outlet 103.

[0071] Optionally, the distance between the first air guiding part 152 and the first air outlet part 132 is gradually increased, so that the end of the first supplement part 151 close to the first air guiding part 152 cooperates with the first air guiding part 152 into a volute tongue, and then a diffuser section of the first air duct 104 is formed between the first air guiding part 152 and the first air outlet part 132, which is beneficial to quickly blow out the airflow.

[0072] As for the shape structure of the second air duct supplement plate 160, the shape structure of the second air duct supplement plate 160 should be designed in combination with the shape structure of the second air duct plate 140 and the flow direction of the airflow spun by the impeller 120. In an embodiment, the second air duct plate 140 includes a second arc part 141 and a second air outlet part 142 extending from one end of the second arc part 141 along the tangent direction of the impeller 120; the second air duct supplement plate 160 includes a second supplement part 161 for abutting the other end of the second arc part 141 to surround the impeller 120, and a second air guiding part 162 extending from the second supplement part 161 towards the second volute outlet 103, the second air guiding part 162 being used to define the outlet end of the second air duct 105 with the second air outlet part 142.

[0073] Specifically, the second arc portion 141 of the second air duct plate 140 is arranged in an arc shape and surrounds the side of the wind wheel 120 opposite to the first air duct plate 140 in a half-enclosing manner, and the second air outlet portion 142 of the second air duct supplementary plate 160 extends out along the tangent direction of the wind wheel 120 from the end of the second arc portion 141 away from the first volute outlet 102. The second supplementary gap portion 161 of the second air duct supplementary plate 160 is also arranged in an arc shape; when the second air duct supplementary plate 160 moves to the second working position, the second supplementary gap portion 161 of the second air duct supplementary plate 160 surrounds the other side of the wind wheel 120 in a half-enclosing manner and is connected to the end of the second arc portion 141 of the second air duct plate 140 close to the first volute outlet 102, so as to be connected to the second arc portion in a ring-shaped air duct wall surrounding the wind wheel 120; and the second air guide portion 162 of the second air duct supplementary plate 160 extends out towards the second volute outlet 103 from the other end of the second supplementary gap portion 161, so as to be spaced apart from the second air outlet portion 142 to define the outlet end of the second air duct 105; at this time, the second air guide portion 162 and the second air outlet portion 142 both form a linear air duct wall, and the linear air duct wall and the ring-shaped air duct wall combine to form the complete air duct profile of the second air duct 105.

[0074] Based on this, when the fan module 100 works in the second air outlet mode, the airflow spun out by the wind wheel 120 is first compressed and guided to the outlet end of the second air duct 105 between the second air outlet portion 142 and the second air guide portion 162 by the ring-shaped air duct wall formed by the second supplementary gap portion 161 and the second arc portion 141, and then guided to the second volute outlet 103 by the linear air duct wall formed by the two, and blown out. In this process, the airflow flows smoothly and is not easily affected by the first volute outlet 102.

[0075] Optionally, the distance between the second air guide portion 162 and the second air outlet portion 142 is arranged to gradually increase, so that the end of the second supplementary gap portion 161 close to the second air guide portion 162 cooperates with the second air guide portion 162 in a volute tongue shape, and then a diffuser section of the second air duct 105 is formed between the second air guide portion 162 and the second air outlet portion 142, which is beneficial to quickly blow out the airflow.

[0076] In an embodiment, the angle between the extension direction of the first air outlet portion 132 of the first air duct plate 130 and the extension direction of the second air outlet portion 142 of the second air duct plate 140 can be greater than or equal to 90° and less than or equal to 150°. As shown in Figure 7 Figure 7 ​The angle θ is the included angle between the extending direction of the first air outlet 132 of the first air duct plate 130 and the extending direction of the second air outlet 142 of the second air duct plate 140, i.e. 90°≤θ≤150°. The angle θ is actually equivalent to the included angle between the air outlet direction of the first volute outlet 102 and the air outlet direction of the second volute outlet 103. The specific value of θ can be, but is not limited to, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°.

[0077] Since the angle θ is less than 150°, the air outlet direction of the first volute outlet 102 and the air outlet direction of the second volute outlet 103 are not at the two ends of the same radial direction of the impeller 120, so that the air duct profile of the first air duct 104 and the second air duct 105 is closer to the conventional volute profile, thereby reducing the influence of the volute outlet on the air duct profile of the two air ducts, which not only can reduce the air flow resistance and air volume loss, but also can avoid the first volute outlet 102 and the second volute outlet 103 occupying the size of the fan module 100 in the radial direction of the impeller 120. For example, when the first volute outlet 102 is open to the front side of the fan module 100, the second volute outlet 103 is relatively located at the lower rear of the fan module 100 rather than the rear, so that the size of the front-rear direction of the fan module 100 can be designed to be relatively small, which is beneficial to reducing the volume of the fan module 100.

[0078] In an embodiment, the first air duct plate 130 further comprises a first volute tongue portion 133, which extends outward from one end of the first arc portion 131 for abutting with the first complementary portion 151, and forms the second volute outlet 103 between the first volute tongue portion 133 and the end of the second air outlet 142. When the fan module 100 is in the second air outlet mode, the inner end of the first volute tongue portion 133 of the first air duct plate 130 abuts with the end of the second air guide portion 162 of the second air duct complementary plate 160, so as to extend the distance of the outlet end of the second air duct 105, so that after the air flow is blown out from the second air duct 105, it can continue to flow along the wall of the first volute tongue portion 133, and then be guided by the first volute tongue portion 133 to be blown out from the second volute outlet 103, thereby improving the air outlet effect of the second volute outlet 103.

[0079] Further, the first volute tongue portion 133 of the first air duct plate 130 can be arranged to extend in the same direction as the second air duct extension portion 162 of the second air duct plate 160. However, it is considered that the second volute outlet 103 of the fan module 100 is usually arranged to communicate with the outdoor, and thus needs to be discharged from the outdoor. The air duct for communicating the second volute outlet 103 with the outdoor is usually arranged to be lower than or flush with the second volute outlet 103. Therefore, in order to facilitate the air flow from the second volute outlet 103 to be discharged to the outdoor through the air duct, the first volute tongue portion 133 of the first air duct plate 130 can be optionally arranged to be inclined downward relative to the second air duct extension portion 162 of the second air duct plate 160, so that the extending direction of the first volute tongue portion 133 is downward together with the second air duct plate 140, thereby facilitating the air flow to be guided to blow downward.

[0080] In an embodiment, the second air duct plate 140 further comprises a second volute tongue portion 143, which extends outward from an end of the second arc portion 141 for abutting the second missing portion 161. The second volute tongue portion 143 and the end of the first air outlet portion 132 form the first volute outlet 102. When the fan module 100 is in the first air outlet mode, the inner end of the second volute tongue portion 143 of the second air duct plate 140 abuts the end of the first air duct extension portion 152 of the first air duct plate 150, thereby extending the distance of the outlet end of the first air duct 104, so that the air flow blown from the first air duct 104 can continue to flow along the second volute tongue portion 143, and then be guided to blow from the first volute outlet 102 through the second volute tongue portion 143, thereby improving the air outlet effect of the first volute outlet 102.

[0081] Further, the second volute tongue portion 143 of the second air duct plate 140 can be arranged to extend in the same direction as the first air duct extension portion 152 of the first air duct plate 150. In this way, the first volute outlet 102 can be arranged in a flared shape, and the air flow blown from the first volute outlet 102 can be diffused to blow forward, thereby facilitating to increase the air supply range of the fan module 100.

[0082] Based on any one of the above embodiments, the structure of the volute 110 can be reasonably designed according to the requirements of the air duct. In the present embodiment, the volute 110 comprises a bottom shell 111 and a shell cover 112 which is combined on the bottom shell 111, and the bottom shell 111 and the shell cover 112 enclose a cavity for mounting the wind wheel 120. Among them, the bottom shell 111 is provided with a mounting groove for mounting the motor 171 of the wind wheel 120; the shell cover 112 is provided with the opposite volute inlet 101 of the wind wheel 120. The first air duct plate 130 can be formed on the bottom shell 111 or the shell cover 112, or alternatively, one part of the first air duct plate 130 is formed on the bottom shell 111 and the other part is formed on the shell cover 112. Similarly, the second air duct plate 140 can be formed on the bottom shell 111 or the shell cover 112, or alternatively, one part of the second air duct plate 140 is formed on the bottom shell 111 and the other part is formed on the shell cover 112

[0083] In an embodiment, one of the bottom shell 111 and the shell cover 112 is through in the thickness direction thereof and has a first movable slot 106 for the first air duct patch plate 150 to move, and the other one is through in the same direction and has a second movable slot 107 for the second air duct patch plate 160 to move. Specifically, the bottom shell 111 is provided with the first movable slot 106, and the first air duct patch plate 150 is movably inserted into the first movable slot 106; the shell cover 112 is provided with the second movable slot 107, and the second air duct patch plate 160 is movably inserted into the second movable slot 107.

[0084] When the first air duct patch plate 150 is moved from the first movable slot 106 in the axial direction of the wind wheel 120 towards the shell cover 112, the first air duct patch plate 150 can be moved into the volute 110 until the inner side of the first air duct patch plate 150 is in contact with the inner wall of the shell cover 112, so that the first air duct patch plate 150 is switched from the first rest position to the first working position. Conversely, when the first air duct patch plate 150 is moved from the first movable slot 106 in the axial direction of the wind wheel 120 away from the shell cover 112, the first air duct patch plate 150 can be at least partially moved out of the volute 110, so that the first air duct patch plate 150 is switched from the first working position to the first rest position.

[0085] Likewise, when the second air duct patch 160 is moved from the second movable slot 107 in the axial direction of the fan wheel 120 towards the direction of the bottom shell 111, the second air duct patch 160 can be moved into the volute 110 until the inner side of the second air duct patch 160 is in contact with the inner wall of the bottom shell 111, so that the second air duct patch 160 is switched from the second rest position to the second working position. Conversely, when the second air duct patch 160 is moved from the second movable slot 107 in the axial direction of the fan wheel 120 away from the direction of the bottom shell 111, the second air duct patch 160 can be at least partially moved out of the volute 110, so that the second air duct patch 160 is switched from the second working position back to the second rest position.

[0086] Based on the above embodiment, optionally, the height of the first air duct patch 150 in the axial direction of the fan wheel 120 is greater than the distance between the first movable slot 106 and the shell cover 112. In this way, when the first air duct patch 150 is moved to the first working position, the first air duct patch 150 cannot be completely inserted into the volute 110, that is, a part of the first air duct patch 150 is inserted into the volute 110 to form the first air duct 104 together with the first air duct plate 130; and the other part of the first air duct patch 150 is inserted in the first movable slot 106 or extends out of the first movable slot 106 to the volute 110, so that the first air duct patch 150 can block the first movable slot 106, avoiding the air flow in the first air duct 104 from the first movable slot 106 to leak outwards when the fan module 100 is in the first air outlet mode.

[0087] Further, when the first air duct patch 150 is in the first rest position, the first air duct patch 150 blocks the first movable slot 106. When the fan module 100 is in the second air outlet mode, the first air duct patch 150 is in the first rest position, and the first air duct patch 150 blocks the first movable slot 106, so as to avoid the air flow in the second air duct 105 from leaking outwards through the first movable slot 106, improving the sealing performance of the second air duct 105. Of course, in addition to this, other structures that are linked with the first air duct patch 150 can also be used to block the first movable slot 106.

[0088] In another embodiment, the height of the second air duct supplemental plate 160 along the axial direction of the fan wheel 120 is greater than the distance between the second movable slot 107 and the bottom shell 111. In this way, when the second air duct supplemental plate 160 is moved to the second position, the second air duct supplemental plate 160 cannot be fully inserted into the volute 110, that is, a part of the second air duct supplemental plate 160 is inserted into the volute 110 to be enclosed with the second air duct plate 140 to form the second air duct 105, and the other part of the second air duct supplemental plate 160 is inserted into or extends out of the volute 110 from the second movable slot 107. In this way, the second air duct supplemental plate 160 can be used to block the second movable slot 107, so as to prevent the air flow in the second air duct 105 from leaking out of the second movable slot 107 in the second air outlet mode.

[0089] Further, when the second air duct supplemental plate 160 is in the second position, the second air duct supplemental plate 160 blocks the second movable slot 107. When the fan module 100 works in the first air outlet mode, the second air duct supplemental plate 160 is in the second position, and the second air duct supplemental plate 160 blocks the second movable slot 107, so as to prevent the air flow in the first air duct 104 from leaking out of the second movable slot 107, and improve the sealing performance of the first air duct 104. Of course, in addition to this, other structures associated with the second air duct supplemental plate 160 can also be used to block the second movable slot 107.

[0090] Based on any of the above embodiments, the fan module 100 further comprises two driving assemblies 170, one of which is connected with the first air duct supplemental plate 150, and the other of which is connected with the second air duct supplemental plate 160, so that the first air duct supplemental plate 150 and the second air duct supplemental plate 160 can be independently moved.

[0091] As to the structure type of the driving assembly 170, the driving assembly 170 can comprise a motor 171, a gear 172 and a rack 173. The motor 171 is installed on the volute 110. The gear 172 is fixed on the shaft of the motor 171. The rack 173 is fixed on the first air duct supplemental plate 150 or the second air duct supplemental plate 160 and is engaged with the gear 172. Specifically, the rack 173 of one of the driving assemblies 170 is arranged on the first air duct supplemental plate 150 and extends along the axial direction of the fan wheel 120. The rack 173 of the other driving assembly 170 is arranged on the second air duct supplemental plate 160 and extends along the axial direction of the fan wheel 120. The volute 110 is further provided with a relief gap 108 on the side of the first movable slot 106 and / or the second movable slot 107 to avoid the rack 173.

[0092] In another embodiment, different from the above embodiment, the fan module 100 comprises a driving assembly 170 and a linkage assembly (not shown in the figure); wherein the first air duct patch 150 is connected with the second air duct patch 160 through the linkage assembly; the driving assembly 170 is connected with the first air duct patch 150 or the second air duct patch 160, so as to drive the second air duct patch 160 to the second rest position through the linkage assembly when the driving assembly 170 drives the first air duct patch 150 to move to the first working position. In this way, the number of the driving assembly 170 can be reduced.

[0093] Specifically, the driving assembly 170 is connected with one of the first air duct patch 150 and the second air duct patch 160. The linkage assembly can comprise a push rod, the two ends of the push rod being connected with the first air duct patch 150 and the second air duct patch 160 respectively, so that the first air duct patch 150 pushes the second air duct patch 160 out of the second rest position through the push rod when the driving assembly 170 drives the first air duct patch 150 to move to the first working position; conversely, the first air duct patch 150 pulls the second air duct patch 160 into the second working position through the push rod when the driving assembly 170 drives the first air duct patch 150 to move to the first rest position. Of course, the linkage assembly is not limited thereto.

[0094] The present application also provides an embodiment of a ventilation device, which comprises a housing 210 and a fan module 100; wherein the housing 210 is provided with an air inlet 211, a first air outlet 212 and a second air outlet 213; and the fan module 100 is installed in the housing 210. The specific structure of the fan module 100 is referred to the above embodiments. Since the ventilation device 200 adopts all the technical solutions of the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described herein again.

[0095] In the above embodiments, the volute inlet 101 of the fan module 100 is communicated with the air inlet 211, the first volute outlet 102 of the fan module 100 is communicated with the first air outlet 212, and the second volute outlet 103 of the fan module 100 is communicated with the second air outlet 213.

[0096] For the air exchange device 200, the air inlet 211 and the first air outlet 212 can be used to communicate with the indoor, while the second air outlet 213 is used to communicate with the outdoor. In this way, the air exchange device 200 can have an indoor air mode and an exhaust mode. In the indoor air mode, the fan module 100 is switched to the first air outlet mode, indoor air enters the fan module 100 through the air inlet 211 of the air exchange device 200, then flows to the first air outlet 212 through the first air duct 104 and the first volute outlet 102 of the fan module 100, and finally is blown out to the indoor from the first air outlet 212, realizing indoor air circulation. In the exhaust mode, the fan module 100 is switched to the second air outlet mode, indoor air enters the fan module 100 through the air inlet 211 of the air exchange device 200, then flows to the second air outlet 213 through the second air duct 105 and the second volute outlet 103 of the fan module 100, and finally is blown out to the outdoor from the second air outlet 213, so as to exhaust indoor air to the outdoor.

[0097] Of course, in other embodiments, the air inlet 211 and the first air outlet 212 can be used to communicate with the indoor, while the second air outlet 213 can also be used to communicate with the outdoor. In this way, the air exchange device 200 can have two different indoor air modes. In one of the indoor air modes, the fan module 100 is switched to the first air outlet mode, indoor air enters the fan module 100 through the air inlet 211 of the air exchange device 200, then flows to the first air outlet 212 through the first air duct 104 and the first volute outlet 102 of the fan module 100, and finally is blown out to the indoor from the first air outlet 212, realizing air supply to one of the indoor. In the other indoor air mode, the fan module 100 is switched to the first air outlet mode, indoor air enters the fan module 100 through the air inlet 211 of the air exchange device 200, then flows to the second air outlet 213 through the second air duct 105 and the second volute outlet 103 of the fan module 100, and finally is blown out to the indoor from the second air outlet 213, realizing air supply to the other of the indoor.

[0098] In the present embodiment, the air inlet 211 and the first air outlet 212 are used to communicate with the indoor, and the second air outlet 213 is used to communicate with the outdoor, so that the air exchange device 200 has an indoor air mode and an exhaust mode. In addition, in order to make the air exchange device 200 also have a fresh air function, the shell 210 also has a bypass air duct 214 and a partition plate 220, the partition plate 220 can divide the bypass air duct 214 into an indoor cavity 214a which communicates with the air inlet 211 and the volute inlet 101, and an outdoor cavity 214b which communicates with the second air outlet 213 and the second volute outlet 103; the partition plate 220 is movable relative to the shell 210 to switch between a working position and a avoiding position; wherein: in the working position, the indoor cavity 214a and the outdoor cavity 214b are not communicated; in the avoiding position, the indoor cavity 214a and the outdoor cavity 214b are communicated. By providing the bypass air duct 214 and the partition plate 220 in the air exchange device 200, the air exchange device 200 has a fresh air mode in addition to the indoor air mode and the exhaust mode. Wherein:

[0099] In the indoor air mode, the air inlet 211 is opened, and the partition plate 220 is moved to the working position, so that the partition plate 220 divides the bypass air duct 214 into the indoor cavity 214a and the outdoor cavity 214b; at the same time, the fan module 100 is switched to the first air outlet mode, so that the air inlet 211, the indoor cavity 214a of the bypass air duct 214, the volute inlet 101 of the fan module 100, the first air duct 104, the first volute outlet 102 and the first air outlet 212 are communicated to form an indoor air wind path. In this way, the indoor air enters from the air inlet 211, and then is blown back to the indoor through the indoor air wind path, realizing indoor air circulation.

[0100] In the exhaust mode, the air inlet 211 is opened, and the partition plate 220 is moved to the working position, so that the partition plate 220 divides the bypass air duct 214 into the indoor cavity 214a and the outdoor cavity 214b; at the same time, the fan module 100 is switched to the first air outlet mode, so that the air inlet 211, the indoor cavity 214a of the bypass air duct 214, the volute inlet 101 of the fan module 100, the second air duct 105, the second volute outlet 103, the outdoor cavity 214b of the bypass air duct 214 and the second air outlet 213 are communicated to form an exhaust wind path. In this way, the indoor air enters from the air inlet 211, and then is exhausted to the outdoor through the exhaust wind path, realizing the exhaust of indoor air to the outdoor.

[0101] In the fresh air mode, the air inlet 211 is closed, and the partition plate 220 is moved to the avoiding position, so that the indoor cavity 214a and the outdoor cavity 214b of the bypass air duct 214 are communicated; at the same time, the fan module 100 is switched or kept in the first air outlet mode, so that the first air outlet 212, the bypass air duct 214, the volute inlet 101 of the fan module 100, the first air duct 104, the first volute outlet 102 and the first air outlet 212 are communicated to form a fresh air air path. In this way, outdoor fresh air can enter from the first air outlet 212, and then be blown back to the indoor through the fresh air air path, so as to introduce outdoor fresh air into the indoor and improve the indoor air quality.

[0102] In an embodiment, the ventilation device 200 further comprises an air inlet valve 230 arranged at the air inlet 211 and used for opening and closing the air inlet 211. The air inlet valve 230 can be separately provided with a driving motor 241, so as to drive the air inlet valve 230 to rotate and open and close the air inlet 211 by the driving motor 241. The partition plate 220 can also be separately provided with a driving motor 241, so as to drive the partition plate 220 to rotate and switch between the partition position and the avoiding position by the driving motor 241.

[0103] Alternatively, the air inlet valve 230 and the partition plate 220 are arranged in linkage, so that when the air inlet valve 230 opens the air inlet 211, the partition plate 220 is driven to switch to the working position. In this way, the number of driving motors 241 can be reduced, and the cost of the ventilation device 200 can be reduced. Specifically, a rotating shaft 240 is arranged on the shell 210; the air inlet valve 230 and the partition plate are arranged on opposite sides of the rotating shaft 240 and are fixedly connected with the rotating shaft 240. The rotating shaft 240 is located on the lower side of the air inlet 211. The lower side of the air inlet valve 230 is fixedly connected with the rotating shaft 240; the partition plate 220 is arranged in the air inlet cavity, and the upper side of the partition plate 220 is fixedly connected with the rotating shaft 240.

[0104] When the air inlet valve 230 is driven to rotate outward to open the air inlet 211, the partition plate 220 is relatively flipped upward to move to the working position; at this time, if the fan module 100 is switched to the first air outlet mode, the ventilation device 200 can be operated in the indoor air mode; and if the fan module 100 is switched to the second air outlet mode, the ventilation device 200 can be operated in the exhaust air mode. When the air inlet valve 230 is driven to rotate inward to close the air inlet 211, the partition plate 220 is relatively flipped downward to move to the avoiding position; at this time, if the fan module 100 is switched to the first air outlet mode, the ventilation device 200 can be operated in the fresh air mode.

[0105] The air conditioning equipment also comprises the fan module 100, and the specific structure of the fan module 100 refers to the above-mentioned embodiments. Since all the technical solutions of the above-mentioned embodiments are adopted in the air conditioning equipment, all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are also achieved, which will not be repeated here.

[0106] Optionally, the air conditioning equipment is an air conditioner or an air purifier.

[0107] The air conditioning equipment also comprises the air exchange device 200, and the specific structure of the air exchange device 200 refers to the above-mentioned embodiments. Since all the technical solutions of the above-mentioned embodiments are adopted in the air conditioning equipment, all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are also achieved, which will not be repeated here.

[0108] Optionally, the air conditioning equipment is an air conditioner or an air purifier.

[0109] The above-mentioned is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and all the equivalent structural transformations made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the inventive concept of the present application are included in the patent protection scope of the present application.

Claims

1. A fan module, characterized in that, The fan module includes: The volute is provided with a volute inlet, a first volute outlet and a second volute outlet; The wind turbine is disposed inside the volute; the volute is also provided with a first air duct plate and a second air duct plate located on both sides of the wind turbine; A first air duct patch plate, the first air duct patch plate having a first working position that is shielded between the impeller and the second air duct plate to form a first air duct communicating with the outlet of the first volute, and a first resting position that is at least partially withdrawn from the first working position, the first air duct patch plate being movable relative to the volute and switching between the first working position and the first resting position; and The second air duct patch plate has a second working position that shields the impeller and the first air duct plate to form a second air duct communicating with the outlet of the second volute, and a second resting position that is at least partially withdrawn from the second working position. The second air duct patch plate is movable relative to the volute and can switch between the second working position and the second resting position.

2. The fan module as described in claim 1, characterized in that, The first air duct plate includes a first arc portion and a first air outlet portion extending from one end of the first arc portion along the tangential direction of the wind turbine; The first air duct patch plate includes a first gap portion for docking with the other end of the first arc portion to surround the impeller, and a first air intake portion extending from the first gap portion toward the first volute outlet, the first air intake portion defining the outlet end of the first air duct with the first air outlet portion.

3. The fan module as described in claim 2, characterized in that, The second air duct plate includes a second arc portion and a second air outlet portion extending from one end of the second arc portion along the tangential direction of the wind turbine; The second air duct patch plate includes a second filler portion for docking with the other end of the second arc portion to surround the impeller, and a second air intake portion extending from the second filler portion toward the outlet of the second volute, the second air intake portion defining the outlet end of the second air duct with the second air outlet portion.

4. The fan module as described in claim 3, characterized in that, The angle between the extending direction of the first air outlet of the first air duct plate and the extending direction of the second air outlet of the second air duct plate is greater than or equal to 90° and less than or equal to 150°.

5. The fan module as described in claim 3, characterized in that, The first air duct plate also includes a first volute tongue, which extends outward from the end of the first arc portion that is used to connect with the first filling portion, and the second volute outlet is formed between the first volute tongue and the end of the second air outlet portion.

6. The fan module as described in claim 3, characterized in that, The second air duct plate also includes a second volute tongue, which extends outward from the end of the second arc portion that is used to connect with the second filling portion, and the second volute tongue and the end of the first air outlet portion form the first volute outlet.

7. The fan module as described in any one of claims 1 to 6, characterized in that, The volute includes a bottom shell and a cover that fits over the bottom shell; one of the bottom shell and the cover has a first movable groove through it along its thickness direction for the first air duct patch plate to move, and the other has a second movable groove through it in the same direction for the second air duct patch plate to move.

8. The fan module as described in claim 7, characterized in that, The bottom shell is provided with a first movable groove; the height of the first air duct patch plate along the axial direction of the impeller is greater than the distance between the first movable groove and the shell cover.

9. The fan module as described in claim 7, characterized in that, The shell cover is provided with a second movable groove; the height of the second air duct patch plate along the axial direction of the impeller is greater than the distance between the second movable groove and the bottom shell.

10. The fan module as described in claim 7, characterized in that, When the first air duct patch is in the first resting position, the first air duct patch blocks the first movable slot; and / or, when the second air duct patch is in the second resting position, the second air duct patch blocks the second movable slot.

11. The fan module as described in any one of claims 1 to 6, characterized in that, The fan module includes two drive components, one of which is connected to the first air duct patch plate and the other is connected to the second air duct patch plate, so that the first air duct patch plate and the second air duct patch plate can move independently.

12. The fan module as described in claim 11, characterized in that, The driving component includes: An electric motor, which is mounted on the volute; A gear, the gear being fixed to the motor shaft of the motor; and A rack is fixed to the first or second air duct patch plate and meshes with the gear.

13. The fan module as described in any one of claims 1 to 6, characterized in that, The fan module further includes a drive component and a linkage component; wherein, the first air duct patch plate is connected to the second air duct patch plate through the linkage component; the drive component is connected to the first air duct patch plate or the second air duct patch plate so that when the drive component drives the first air duct patch plate to move to the first working position, the linkage component drives the second air duct patch plate to the second rest position.

14. A ventilation device, characterized in that, The ventilation device includes: The housing includes an air inlet, a first air outlet, and a second air outlet; and The fan module as described in any one of claims 1 to 13, wherein the fan module is installed within the housing; wherein: The inlet of the volute of the fan module is connected to the air inlet, the outlet of the first volute of the fan module is connected to the first air outlet, and the outlet of the second volute of the fan module is connected to the second air outlet.

15. The ventilation device as described in claim 14, characterized in that, The air inlet and the first air outlet are used to connect to the indoor environment; the second air outlet is used to connect to the outdoor environment.

16. The ventilation device as described in claim 15, characterized in that, The housing is also provided with a bypass ventilation duct and a partition plate. The partition plate can divide the bypass ventilation duct into an indoor cavity that connects the air inlet and the volute inlet, and an outdoor cavity that connects the second air outlet and the second volute outlet. The partition plate is movable relative to the housing and can switch between a working position and a clearance position; wherein: In the operating position, the indoor cavity and the outdoor cavity are not in communication; At the avoidance position, the indoor cavity and the outdoor cavity are in communication.

17. The ventilation device as described in claim 16, characterized in that, The ventilation device also includes an air inlet valve for opening and closing the air inlet. The air inlet valve and the partition plate are linked together so that when the partition plate is switched to the working position, the air inlet valve opens the air inlet.

18. The ventilation device as described in claim 17, characterized in that, The housing is provided with a rotating shaft; the air inlet valve and the partition are respectively located on opposite sides of the rotating shaft, and are both connected and fixed to the rotating shaft.

19. The ventilation device as described in claim 16, characterized in that, The ventilation device has at least one or more of the following: indoor air mode, fresh air mode, and exhaust air mode; wherein: In the indoor ventilation mode, the air inlet is connected to the indoor cavity of the bypass ventilation duct, the volute inlet of the fan module, the first air duct, the first volute outlet and the first air outlet to form an indoor ventilation path. In the fresh air mode, the first air outlet is connected to the bypass ventilation duct, the volute inlet of the fan module, the first air duct, the first volute outlet and the first air outlet to form a fresh air path; In the exhaust mode, the air inlet is connected to the indoor cavity of the bypass ventilation duct, the volute inlet of the fan module, the second air duct, the second volute outlet, the outdoor cavity of the bypass ventilation duct, and the second air supply outlet to form an exhaust air path.

20. An air conditioning device, characterized in that, The air conditioning device includes a fan module as described in any one of claims 1 to 13; or, the air conditioning device includes a ventilation device as described in any one of claims 14 to 19.

21. The air conditioning device as described in claim 20, characterized in that, The air conditioning equipment is an air conditioner or an air purifier.

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