Fresh air mechanism and air conditioner having the same

Abstract

The present invention provides a fresh air mechanism and an air conditioner having the same, the fresh air mechanism comprising: a volute assembly, the volute assembly having an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, a first fan cavity and a second fan cavity; the indoor air inlet and the outdoor air outlet are both connected to the first fan cavity to form a first air duct for discharging indoor air to the outside; the indoor air outlet and the outdoor air inlet are both connected to the second fan cavity to form a second air duct for allowing outdoor air to enter the room; a first fan and a second fan, the first fan is installed in the first fan cavity, and the second fan is installed in the second fan cavity; a switching assembly, the position of the switching assembly is adjustably arranged in the first air duct and / or the second air duct, so as to connect or disconnect the first air duct and the second air duct by adjusting the position of the switching assembly. The present invention solves the problem of poor quality of fresh air introduced by the fresh air mechanism in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning, and in particular to a fresh air mechanism and an air conditioner having the same. Background Art

[0002] At present, with the rapid changes in the global climate environment, the earth's temperature has risen, natural disasters have occurred frequently, and air pollution, haze and other weather conditions have worsened; the outdoor air is no longer fresh and clean, and the particulate matter and pollutants in the air are increasing year by year, affecting human health.

[0003] In the existing air-conditioning technology, some air conditioners are equipped with fresh air function devices. Fresh outdoor air enters the room through the fresh air device, and the entry of outdoor fresh air is achieved when the indoor doors and windows are closed. This avoids long-term use of air conditioning, when the indoor air does not circulate, and the carbon dioxide content exhaled by the human body gradually becomes higher than the indoor oxygen concentration, causing nausea, dizziness, vomiting and other discomforts.

[0004] In the prior art, the fresh air function is usually to filter outdoor air into the room, ignoring the user's usage under extremely harsh environmental conditions. For example, when a sandstorm suddenly strikes and the outside temperature is at a high level, the outside air is highly polluted, and the existing filter cannot achieve rapid filtration, which results in the problem of poor quality of the fresh air introduced by the fresh air mechanism in the prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide a fresh air mechanism and an air conditioner having the same, so as to solve the problem of poor quality of fresh air introduced by the fresh air mechanism in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a fresh air mechanism is provided, including: a volute assembly, the volute assembly having an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, a first fan cavity and a second fan cavity; the indoor air inlet and the outdoor air outlet are both connected to the first fan cavity to form a first air duct for discharging indoor air to the outdoors; the indoor air outlet and the outdoor air inlet are both connected to the second fan cavity to form a second air duct for allowing outdoor air to enter the indoor area; a first fan and a second fan, the first fan is installed in the first fan cavity, and the second fan is installed in the second fan cavity; a switching assembly, the position of the switching assembly is adjustably arranged in the first air duct and / or the second air duct, so that the first air duct and the second air duct can be connected or disconnected by adjusting the position of the switching assembly.

[0007] Furthermore, the volute assembly includes: a volute body and a volute cover, the volute body and the volute cover are spliced ​​with each other to enclose a first fan cavity and a second fan cavity, and the indoor air outlet is arranged on the volute cover; wherein the switching assembly is arranged on the side of the volute body away from the volute cover.

[0008] Furthermore, the volute assembly includes: a volute main body and a volute cover, the volute main body and the volute cover are spliced ​​with each other to form a first fan cavity and a second fan cavity; an installation box, the installation box is arranged on the side of the volute main body away from the volute cover, the installation box includes a first box body portion, an exhaust buffer cavity is formed between the first box body portion and the volute main body, and an outdoor air outlet is arranged on the first box body portion, so that the airflow in the first fan cavity passes through the exhaust buffer cavity and then flows out from the outdoor air outlet.

[0009] Furthermore, a first connecting opening for connecting the first fan cavity and the exhaust buffer cavity is provided on the volute body, and the switching assembly includes a first baffle, which is openably and closably provided at the first connecting opening.

[0010] Furthermore, the switching assembly also includes a first baffle bracket and a first driving component, the first baffle is movably mounted on the first baffle bracket, and the first driving component is drivingly connected to the first baffle to drive the first baffle to open or close the first communication opening.

[0011] Furthermore, the installation box includes a second box body portion, a first air inlet buffer cavity is formed between the second box body portion and the volute body, and the indoor air inlet is arranged on the second box body portion, so that the indoor air flowing into the indoor air from the indoor air inlet passes through the first air inlet buffer cavity and then flows into the first fan cavity.

[0012] Furthermore, the installation box includes a third box body portion, the third box body portion and the volute body form a second air inlet buffer chamber, and the outdoor air inlet is arranged on the third box body portion; the installation box is provided with a second connecting opening for connecting the exhaust buffer chamber and the second air inlet buffer chamber.

[0013] Furthermore, the switching assembly also includes a second baffle, which is movably arranged to be in a first blocking position for blocking the outdoor air outlet and a second blocking position for blocking the second communicating opening.

[0014] Furthermore, the switching assembly also includes a second baffle bracket and a second driving component, and the second baffle is movably mounted on the second baffle bracket; the second driving component is drivingly connected to the second baffle to drive the second baffle to move to the first shielding position or the second shielding position.

[0015] Furthermore, the switching component also includes: a third baffle, which is movably installed at the outdoor air inlet to open or close the outdoor air inlet.

[0016] Further, the indoor air inlet is arranged at the top of the volute assembly; and / or the indoor air outlet is arranged at the bottom of the volute assembly; and / or the indoor air inlet and the indoor air outlet are respectively arranged on opposite sides of the volute assembly; and / or the indoor air inlet, the outdoor air outlet and the outdoor air inlet are arranged on the same side of the volute assembly; and / or the indoor air inlet, the outdoor air outlet and the outdoor air inlet are arranged in sequence along the vertical direction.

[0017] According to another aspect of the present invention, an air conditioner is provided, comprising a casing and a fresh air mechanism disposed in the casing, wherein the fresh air mechanism is the fresh air mechanism described above.

[0018] Applying the technical solution of the present invention, the fresh air mechanism provided by the present invention includes: a volute assembly, a switching assembly, a first fan and a second fan, the volute assembly having an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, a first fan cavity and a second fan cavity; the indoor air inlet and the outdoor air outlet are both connected to the first fan cavity to form a first air duct for discharging indoor air to the outdoors; the indoor air outlet and the outdoor air inlet are both connected to the second fan cavity to form a second air duct for allowing outdoor air to enter the indoor space; the first fan is installed in the first fan cavity, and the second fan is installed in the second fan cavity; the switching assembly is adjustably arranged in the first air duct and / or the second air duct, so that the first air duct and the second air duct can be connected or disconnected by adjusting the position of the switching assembly. The present invention can satisfy the flow process of three air supply modes by adjusting the position of the switching component. Specifically, by adjusting the position of the switching component, outdoor air can be filtered and then flow into the room through the second air duct, or the indoor air can be discharged to the outside through the first air duct, or the first air duct and the second air duct can be connected, so that the indoor air can be filtered before being sent out of the room. In this way, when under extremely harsh environmental conditions, the outdoor fresh air cannot be completely filtered after being introduced into the room after being filtered by the filter net, the fresh air mechanism of the present invention can make the indoor air re-enter the air conditioner and be filtered again before being sent into the room, thereby realizing the internal circulation of the indoor air through the fresh air mechanism, thereby improving the quality of the introduced fresh air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A first exploded view of an embodiment of an air conditioner according to the present invention is shown;

[0021] Figure 2 A second exploded view of an embodiment of an air conditioner according to the present invention is shown;

[0022] Figure 3 Shown according to Figure 1 An enlarged schematic diagram of the A region of the air conditioner;

[0023] Figure 4 A third exploded view of an embodiment of an air conditioner according to the present invention is shown;

[0024] Figure 5 A schematic diagram showing the airflow direction of outdoor air being delivered into a room according to an embodiment of a fresh air mechanism of the present invention is shown;

[0025] Figure 6 A schematic diagram showing the airflow direction of indoor air sent to the outdoors according to an embodiment of the fresh air mechanism of the present invention is shown;

[0026] Figure 7 A schematic diagram showing the flow direction of air entering a room after filtering the indoor air according to an embodiment of the fresh air mechanism of the present invention is shown;

[0027] Figure 8 A schematic diagram of the planar structure of an embodiment of a fresh air mechanism according to the present invention is shown;

[0028] Fig. 9 A schematic structural diagram of an installation box according to an embodiment of a fresh air mechanism of the present invention is shown;

[0029] Fig.10 A schematic structural diagram of a volute cover according to an embodiment of a fresh air mechanism of the present invention is shown;

[0030] Fig.11 A schematic structural diagram of a volute body according to an embodiment of a fresh air mechanism of the present invention is shown;

[0031] Fig.12 A schematic diagram of assembling an embodiment of a fresh air mechanism according to the present invention is shown;

[0032] Fig.13 A schematic diagram of the disassembly of an embodiment of a fresh air mechanism according to the present invention is shown;

[0033] Fig.14 Shown according to Figure 1 An enlarged schematic diagram of the third baffle bracket of the fresh air mechanism;

[0034] Fig.15 Shown according to Figure 1 An enlarged schematic diagram of the third baffle of the fresh air mechanism;

[0035] Fig.16 Shown according to Figure 2 A schematic diagram of the assembly of the first baffle and the second baffle of the fresh air mechanism; and

[0036] Fig.17Shown according to Figure 4 A schematic assembly diagram of the first baffle and the second baffle of the fresh air mechanism from another perspective.

[0037] The above drawings include the following reference numerals:

[0038] 10. volute assembly; 11. volute body; 12. volute cover; 13. mounting box; 131. first box body; 300. exhaust buffer chamber; 301. first communicating opening; 132. second box body; 310. first air inlet buffer chamber; 133. third box body; 320. second air inlet buffer chamber; 302. second communicating opening; 101. indoor air inlet; 102. indoor air outlet; 103. outdoor air inlet; 104. outdoor air outlet; 110. first fan chamber; 120. second fan chamber; 100. first air duct; 200. second air duct; 111. first fan; 1110. first fan driving component; 121. second fan; 1210. second fan driving component; 20. switching assembly; 21. first baffle; 210. first baffle bracket; 211. first driving component; 22. second baffle; 220. second baffle bracket; 221. second driving component; 23. third baffle; 230. third baffle bracket; 2301. strip hole; 2302. avoidance opening; 2303. limit movable rod; 2304. third driving mounting hole; 231. third driving component; 400. filter bracket. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] Please refer to Figures 1 to 17 The present invention provides a fresh air mechanism, comprising: a volute assembly 10, the volute assembly 10 having an indoor air inlet 101, an indoor air outlet 102, an outdoor air inlet 103, an outdoor air outlet 104, a first fan cavity 110 and a second fan cavity 120; the indoor air inlet 101 and the outdoor air outlet 104 are both connected to the first fan cavity 110 to form a first air duct 100 for discharging indoor air to the outdoors; the indoor air outlet 102 and the outdoor air inlet 103 are both connected to the second fan cavity 120 The machine cavity 120 is connected to form a second air duct 200 for allowing outdoor wind to enter the room; the first fan 111 and the second fan 121, the first fan 111 is installed in the first fan cavity 110, and the second fan 121 is installed in the second fan cavity 120; the switching component 20, the position of the switching component 20 is adjustably arranged in the first air duct 100 and / or the second air duct 200, so that the first air duct 100 and the second air duct 200 can be connected or disconnected by adjusting the position of the switching component 20.

[0041] The fresh air mechanism provided by the present invention comprises: a volute assembly 10, a switching assembly 20, a first fan 111 and a second fan 121, wherein the volute assembly 10 has an indoor air inlet 101, an indoor air outlet 102, an outdoor air inlet 103, an outdoor air outlet 104, a first fan cavity 110 and a second fan cavity 120; the indoor air inlet 101 and the outdoor air outlet 104 are both connected to the first fan cavity 110 to form a first air duct 100 for discharging indoor air to the outdoors; The internal air outlet 102 and the outdoor air inlet 103 are both connected to the second fan cavity 120 to form a second air duct 200 for allowing outdoor air to enter the room; the first fan 111 is installed in the first fan cavity 110, and the second fan 121 is installed in the second fan cavity 120; the switching component 20 is adjustably arranged in the first air duct 100 and / or the second air duct 200, so that the first air duct 100 and the second air duct 200 can be connected or disconnected by adjusting the position of the switching component 20. The present invention can satisfy the flow process of three air supply modes by adjusting the position of the switching component 20. Specifically, by adjusting the position of the switching component 20, the outdoor air can be filtered and then flow into the room through the second air duct 200, the indoor air can be discharged to the outside through the first air duct 100, and the first air duct 100 and the second air duct 200 can be connected, so that the indoor air can be filtered before being sent out of the room. In this way, when under extremely harsh environmental conditions, the outdoor fresh air cannot be completely filtered after being introduced into the room after being filtered through the filter net, the fresh air mechanism of the present invention can make the indoor air re-enter the air conditioner and be filtered again before being sent into the room, thereby realizing the internal circulation of the indoor air through the fresh air mechanism, thereby improving the quality of the introduced fresh air.

[0042] In the embodiment of the present invention, the first fan 111 and the second fan 121 are both centrifugal fans. Specifically, the first fan 111 and the second fan 121 are both circular.

[0043] Specifically, the volute assembly 10 includes: a volute body 11 and a volute cover 12, the volute body 11 and the volute cover 12 are spliced ​​with each other to enclose a first fan cavity 110 and a second fan cavity 120, and the indoor air outlet 102 is arranged on the volute cover 12; wherein, the switching assembly 20 is arranged on the side of the volute body 11 away from the volute cover 12.

[0044] like Figures 5 to 8 As shown, along the extension direction of the volute cover 12 , the indoor air outlet 102 is located below the second fan 121 .

[0045] Specifically, the volute assembly 10 includes: a volute body 11 and a volute cover 12, the volute body 11 and the volute cover 12 are spliced ​​with each other to form a first fan cavity 110 and a second fan cavity 120; an installation box 13, the installation box 13 is arranged on the side of the volute body 11 away from the volute cover 12, the installation box 13 includes a first box body 131, the first box body 131 and the volute body 11 form an exhaust buffer cavity 300, and the outdoor air outlet 104 is arranged on the first box body 131, so that the airflow in the first fan cavity 110 passes through the exhaust buffer cavity 300 and then flows out from the outdoor air outlet 104.

[0046] Optionally, the outdoor air inlet 103 and the outdoor air outlet 104 are both connected to the outdoor side by a duct device, and the indoor air inlet 101 and the indoor air outlet 102 are both located on the indoor side.

[0047] like Figure 1 and Figure 3 As shown, the volute body 11 is provided with a first connecting opening 301 for connecting the first fan cavity 110 and the exhaust buffer cavity 300 , and the switching assembly 20 includes a first baffle 21 , which is openably and closably arranged at the first connecting opening 301 .

[0048] Specifically, the switching assembly 20 also includes a first baffle bracket 210 and a first driving component 211 . The first baffle 21 is movably mounted on the first baffle bracket 210 . The first driving component 211 is drivingly connected to the first baffle 21 to drive the first baffle 21 to open or close the first connecting opening 301 .

[0049] In the embodiment of the present invention, the first baffle 21 is rectangular. Optionally, the corners of the first baffle 21 are arc-shaped chamfers.

[0050] Specifically, the installation box 13 includes a second box body 132, and a first air inlet buffer cavity 310 is formed between the second box body 132 and the volute body 11. The indoor air inlet 101 is arranged on the second box body 132, so that the indoor air flowing into the indoor air from the indoor air inlet 101 passes through the first air inlet buffer cavity 310 and then flows into the first fan cavity 110.

[0051] Specifically, the installation box 13 includes a third box body 133, the third box body 133 and the volute body 11 enclose a second air inlet buffer chamber 320, and the outdoor air inlet 103 is arranged on the third box body 133; the installation box 13 is provided with a second communication opening 302 for connecting the exhaust buffer chamber 300 and the second air inlet buffer chamber 320. In an embodiment of the present invention, the switching assembly 20 further includes a second baffle 22, and the second baffle 22 is movably arranged to be in a first shielding position for shielding the outdoor air outlet 104 and a second shielding position for shielding the second communication opening 302.

[0052] Specifically, the switching assembly 20 also includes a second baffle bracket 220 and a second driving component 221, and the second baffle 22 is movably mounted on the second baffle bracket 220; the second driving component 221 is drivingly connected to the second baffle 22 to drive the second baffle 22 to move to the first shielding position or the second shielding position.

[0053] In the embodiment of the present invention, the second baffle 22 is rectangular.

[0054] like Fig.16 and Fig.17 As shown, optionally, the side wall of the first baffle bracket 210 away from the first baffle 21 is connected to the side wall of the second baffle bracket 220 away from the second baffle 22, so that the first baffle 21 and the second baffle 22 are spaced apart along the distribution direction from the installation box 13 to the volute body 11; or, the first baffle bracket 210 and the second baffle bracket 220 are an integral structure, that is, the first baffle 21 and the second baffle 22 are arranged on the same baffle bracket, so that the first baffle 21 and the second baffle 22 are spaced apart along the distribution direction from the installation box 13 to the volute body 11.

[0055] Optionally, the first driving component 211 and the second driving component 221 are located on the same side; or the first driving component 211 and the second driving component 221 are located on different sides.

[0056] Specifically, the first baffle 21 is installed on the first baffle bracket 210 via the first rotating shaft so that the first baffle 21 rotates around the first rotating shaft; the second baffle 22 is installed on the second baffle bracket 220 via the second rotating shaft so that the second baffle 22 rotates around the second rotating shaft.

[0057] Specifically, the switching assembly 20 further includes: a third baffle 23 , which is movably installed at the outdoor air inlet 103 to open or close the outdoor air inlet 103 .

[0058] Specifically, the fresh air mechanism of the present invention further includes a filter bracket 400, on which the filter is mounted, and there are two filter brackets 400, which are located at the same height, and both filter brackets 400 are installed between the first baffle bracket 210 (or the second baffle bracket 220) and the third baffle bracket 230, and the filter bracket 400 is located between the third baffle bracket 230 and the volute body 11. Specifically, the two filter brackets 400 are installed inside the second air inlet buffer chamber 320 near the outdoor air inlet 103.

[0059] Specifically, the switching assembly 20 also includes a third baffle bracket 230 and a third driving component 231, and the third baffle 23 is movably mounted on the third baffle bracket 230; the third driving component 231 is drivingly connected to the third baffle 23 to drive the third baffle 23 to move to the first shielding position or the second shielding position.

[0060] In the embodiment of the present invention, the first driving component 211 , the second driving component 221 , and the third driving component 231 are all stepping motors.

[0061] like Fig.14 and Fig.15 As shown, the third baffle bracket 230 includes a strip hole 2301, an avoidance opening 2302 and a third drive mounting hole 2304; a limiting movable rod 2303 is provided on the third baffle 23; the limiting movable rod 2303 cooperates with the strip hole 2301 so that the third driving component 231 drives the third baffle 23 to move along the extension direction of the strip hole 2301; the avoidance opening 2302 is provided corresponding to the outdoor air inlet 103 so that outdoor air can flow into the second air inlet buffer chamber 320; the third driving component 231 and the third baffle 23 are installed on the third baffle bracket 230 through the third drive mounting hole 2304.

[0062] Optionally, the avoidance opening 2302 is the same size as the outdoor air inlet 103 .

[0063] In the embodiment of the present invention, the third baffle 23 is in the shape of a blade.

[0064] In the specific implementation process of the first embodiment of the present invention, as Figure 5 As shown, the first baffle 21 and the second baffle 22 are both closed, at which time the first baffle 21 closes the first communication opening 301, the second baffle 22 closes the outdoor air outlet 104, and the third baffle 23 is opened to open the outdoor air inlet 103. Outdoor air enters the second air inlet buffer chamber 320 from the outdoor air inlet 103, and flows through the second fan chamber 120 after being filtered by the filter, and then the second fan 121 drives the airflow to be blown out from the indoor air outlet 102, and the airflow flows into the room.

[0065] In the specific implementation process of the second embodiment of the present invention, as Figure 6 As shown, the first baffle 21 is opened to open the first communication opening 301 to connect the exhaust buffer chamber 300 and the first fan chamber 110, and the second baffle 22 is opened to open the outdoor air outlet 104 and close the second communication opening 302. The indoor air flows into the first air inlet buffer chamber 310 from the indoor air inlet 101 and then flows into the first fan chamber 110. The airflow driven by the first fan 111 flows through the first communication opening 301 and the exhaust buffer chamber 300 in sequence, and then the airflow is discharged outdoors from the outdoor air outlet 104.

[0066] In the specific implementation process of the third embodiment of the present invention, as Figure 7 As shown, the first baffle 21 is opened to open the first communication opening 301, connecting the exhaust buffer chamber 300 and the first fan chamber 110, the second baffle 22 is closed to close the outdoor air outlet 104, the second communication opening 302 is opened, and the third baffle 23 is closed to close the outdoor air inlet 103. The indoor air flows into the first air inlet buffer chamber 310 from the indoor air inlet 101 and then flows into the first fan chamber 110. The first fan 111 drives the airflow to flow to the first communication opening 301 and then flows into the exhaust buffer chamber 300, then flows through the second communication opening 302 and the second air inlet buffer chamber 320 in sequence, and flows into the second fan chamber 120 after being filtered by the filter net, and then the airflow is driven by the second fan 121, and the airflow is sent into the room from the indoor air outlet 102.

[0067] In an embodiment of the present invention, the indoor air inlet 101 is arranged at the top of the volute assembly 10; and / or the indoor air outlet 102 is arranged at the bottom of the volute assembly 10; and / or the indoor air inlet 101 and the indoor air outlet 102 are respectively arranged on opposite sides of the volute assembly 10; and / or the indoor air inlet 101, the outdoor air outlet 104 and the outdoor air inlet 103 are arranged on the same side of the volute assembly 10; and / or the indoor air inlet 101, the outdoor air outlet 104 and the outdoor air inlet 103 are arranged in sequence along the vertical direction.

[0068] The present invention further provides an air conditioner, comprising a casing and a fresh air mechanism arranged in the casing, wherein the fresh air mechanism is the above-mentioned fresh air mechanism.

[0069] Specifically, the air conditioner also includes a first fan driving component 1110 and a second fan driving component 1210. The first fan driving component 1110 is drivingly connected to the first fan 111 so that the first fan driving component 1110 drives the fan blades of the first fan 111 to rotate, thereby driving the airflow, and the first fan driving component 1110 is arranged at the center of the first fan 111; the second fan driving component 1210 is drivingly connected to the second fan 121 so that the second fan driving component 1210 drives the fan blades of the second fan 121 to rotate, thereby driving the airflow, and the second fan driving component 1210 is arranged at the center of the second fan.

[0070] The first fan driving component 1110 and the second fan driving component 1210 are both stepper motors, and the first fan 111 is located above the second fan 121 .

[0071] In the embodiment of the present invention, the first fan 111 is an exhaust fan, and the second fan 121 is a fresh air fan.

[0072] Optionally, the size of the first fan 111 is greater than that of the second fan 121 ; or the size of the first fan 111 is equal to that of the second fan 121 .

[0073] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0074] The fresh air mechanism provided by the present invention comprises: a volute assembly 10, a switching assembly 20, a first fan 111 and a second fan 121, wherein the volute assembly 10 has an indoor air inlet 101, an indoor air outlet 102, an outdoor air inlet 103, an outdoor air outlet 104, a first fan cavity 110 and a second fan cavity 120; the indoor air inlet 101 and the outdoor air outlet 104 are both connected to the first fan cavity 110 to form a first air duct 100 for discharging indoor air to the outdoors; The internal air outlet 102 and the outdoor air inlet 103 are both connected to the second fan cavity 120 to form a second air duct 200 for allowing outdoor air to enter the room; the first fan 111 is installed in the first fan cavity 110, and the second fan 121 is installed in the second fan cavity 120; the switching component 20 is adjustably arranged in the first air duct 100 and / or the second air duct 200, so that the first air duct 100 and the second air duct 200 can be connected or disconnected by adjusting the position of the switching component 20. The present invention can satisfy the flow process of three air supply modes by adjusting the position of the switching component 20. Specifically, by adjusting the position of the switching component 20, the outdoor air can be filtered and then flow into the room through the second air duct 200, the indoor air can be discharged to the outside through the first air duct 100, and the first air duct 100 and the second air duct 200 can be connected, so that the indoor air can be filtered before being sent out of the room. In this way, when under extremely harsh environmental conditions, the outdoor fresh air cannot be completely filtered after being introduced into the room after being filtered through the filter net, the fresh air mechanism of the present invention can make the indoor air re-enter the air conditioner and be filtered again before being sent into the room, thereby realizing the internal circulation of the indoor air through the fresh air mechanism, thereby improving the quality of the introduced fresh air.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fresh air mechanism, characterized in that: include: A volute assembly (10), the volute assembly (10) comprising an indoor air inlet (101), an indoor air outlet (102), an outdoor air inlet (103), an outdoor air outlet (104), a first fan cavity (110), and a second fan cavity (120); the indoor air inlet (101) and the outdoor air outlet (104) are both in communication with the first fan cavity (110) to form a first air duct (100) for discharging indoor air to the outdoors; the indoor air outlet (102) and the outdoor air inlet (103) are both in communication with the second fan cavity (120) to form a second air duct (200) for allowing outdoor air to enter the indoor space; a first fan (111) and a second fan (121), wherein the first fan (111) is installed in the first fan cavity (110), and the second fan (121) is installed in the second fan cavity (120); a switching component (20), the switching component (20) being adjustably arranged on the first air duct (100) and / or the second air duct (200), so as to connect or disconnect the first air duct (100) and the second air duct (200) by adjusting the position of the switching component (20); The volute assembly (10) comprises: A volute body (11) and a volute cover (12), wherein the volute body (11) and the volute cover (12) are spliced ​​together to enclose the first fan cavity (110) and the second fan cavity (120); an installation box (13), the installation box (13) being arranged on a side of the volute body (11) away from the volute cover (12), the installation box (13) comprising a first box body (131), an exhaust buffer chamber (300) being enclosed between the first box body (131) and the volute body (11), the outdoor air outlet (104) being arranged on the first box body (131), so that the airflow in the first fan chamber (110) passes through the exhaust buffer chamber (300) and then flows out from the outdoor air outlet (104); The volute body (11) is provided with a first communication opening (301) for connecting the first fan cavity (110) and the exhaust buffer cavity (300), and the switching assembly (20) comprises a first baffle (21), and the first baffle (21) is openably and closably arranged at the first communication opening (301).

2. The fresh air mechanism according to claim 1, characterized in that: The indoor air outlet (102) is arranged on the volute cover (12), and the switching assembly (20) is arranged on a side of the volute body (11) away from the volute cover (12).

3. The fresh air mechanism according to claim 1, characterized in that: The switching assembly (20) further comprises a first baffle support (210) and a first driving component (211); the first baffle (21) is movably mounted on the first baffle support (210); and the first driving component (211) is drivingly connected to the first baffle (21) to drive the first baffle (21) to open or close the first communication opening (301).

4. The fresh air mechanism according to claim 1, characterized in that: The installation box (13) comprises a second box body (132), wherein a first air inlet buffer chamber (310) is formed between the second box body (132) and the volute body (11), and the indoor air inlet (101) is arranged on the second box body (132), so that the indoor air flowing into the room from the indoor air inlet (101) passes through the first air inlet buffer chamber (310) and then flows into the first fan chamber (110).

5. The fresh air mechanism according to claim 4, characterized in that: The installation box (13) comprises a third box body (133), the third box body (133) and the volute body (11) enclose a second air inlet buffer chamber (320), and the outdoor air inlet (103) is arranged on the third box body (133); the installation box (13) is provided with a second connecting opening (302) for connecting the exhaust buffer chamber (300) and the second air inlet buffer chamber (320).

6. The fresh air mechanism according to claim 5, characterized in that: The switching assembly (20) further comprises a second baffle (22), the second baffle (22) being movably arranged to be in a first blocking position for blocking the outdoor air outlet (104) and a second blocking position for blocking the second communication opening (302).

7. The fresh air mechanism according to claim 6, characterized in that: The switching assembly (20) further comprises a second baffle support (220) and a second driving component (221); the second baffle (22) is movably mounted on the second baffle support (220); and the second driving component (221) is drivingly connected to the second baffle (22) to drive the second baffle (22) to move to the first shielding position or the second shielding position.

8. The fresh air mechanism according to any one of claims 1 to 7, characterized in that: The switching component (20) further includes: A third baffle (23), the third baffle (23) being movably mounted at the outdoor air inlet (103) to open or close the outdoor air inlet (103).

9. The fresh air mechanism according to any one of claims 1 to 7, characterized in that: The indoor air inlet (101) is arranged at the top of the volute assembly (10); and / or The indoor air outlet (102) is arranged at the bottom of the volute assembly (10); and / or The indoor air inlet (101) and the indoor air outlet (102) are respectively arranged on opposite sides of the volute assembly (10); and / or The indoor air inlet (101), the outdoor air outlet (104), and the outdoor air inlet (103) are arranged on the same side of the volute assembly (10); and / or The indoor air inlet (101), the outdoor air outlet (104), and the outdoor air inlet (103) are arranged in sequence and spaced apart in a vertical direction.

10. An air conditioner, comprising a casing and a fresh air mechanism arranged in the casing, characterized in that: The fresh air mechanism is the fresh air mechanism according to any one of claims 1 to 9.

Images