CN216620147U - Fresh air mechanism and air conditioner having the same - Google Patents

Abstract

The utility model provides a fresh air mechanism and an air conditioner having the same. The fresh air mechanism comprises: a volute assembly, and the volute assembly has an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, a first fan cavity, and The second fan cavity; both the indoor air inlet and the outdoor air outlet are communicated with the first fan cavity to form a first air duct for discharging indoor air to the outside; both the indoor air outlet and the outdoor air inlet are connected to the second fan cavity connected 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 cavity of the first fan, and the second fan is installed in the cavity of the second fan; the switching assembly, The position of the switch assembly is adjustable 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 switch assembly. The utility model solves the problem of poor quality of the fresh air introduced by the fresh air mechanism in the prior art.

Description

Fresh air mechanism and air conditioner having the same

technical field

The utility model relates to the field of air conditioners, in particular to a fresh air mechanism and an air conditioner having the same.

Background technique

At present, with the rapid changes in the global climate and environment, the temperature of the earth's environment is rising, natural disasters are frequent, and air pollution, smog and other weather are aggravating; the outdoor air is no longer fresh and clean, and the particulate matter and pollutants in the air are increasing year by year. affect human health.

In the existing air conditioning technology, some air conditioners are equipped with a fresh air function device, and the fresh outdoor air enters the room through the fresh air device, and the entry of outdoor fresh air is realized when the indoor doors and windows are closed, so as to avoid long-term use of the air conditioner. The exhaled carbon dioxide content is gradually higher than the indoor oxygen concentration, causing the human body to experience nausea, dizziness, vomiting and other discomforts.

In the prior art, the function of fresh air is usually to filter the outdoor air into the room, ignoring the user's usage under extremely harsh environmental conditions, such as the sudden attack of a sandstorm, the outside temperature is in a high state, and the outside air pollution concentration is high. The existing filter screen cannot realize rapid filtration, which further causes the problem of poor quality of the fresh air introduced by the fresh air mechanism in the prior art.

Utility model content

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.

In order to achieve the above purpose, according to one aspect of the present invention, a fresh air mechanism is provided, comprising: a volute assembly, the volute assembly has an indoor air inlet, an indoor air outlet, an outdoor air inlet, an outdoor air outlet, and a first fan cavity. The indoor air inlet and the outdoor air outlet are connected with the first fan cavity to form a first air duct for discharging the indoor air to the outdoors; both the indoor air outlet and the outdoor air inlet are connected to the second fan The cavities are connected to form a second air duct for letting the outdoor air 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; switching The position of the switch assembly is adjustable 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.

Further, 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 enclose a first fan cavity and a second fan cavity, and the indoor air outlet is arranged on the volute cover ; wherein, the switch assembly is arranged on the side of the volute main body away from the volute cover.

Further, 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 enclose a first fan cavity and a second fan cavity; an installation box, the installation box is arranged in the volute The side of the main body away from the volute cover, the installation box includes a first box body, an exhaust buffer cavity is enclosed between the first box body and the volute main body, and the outdoor air outlet is arranged on the first box body to make The air flow in the cavity of the first fan flows out from the outdoor air outlet after passing through the air exhaust buffer cavity.

Further, the main body of the volute is provided with a first communication opening for communicating the first fan cavity and the exhaust buffer cavity, the switching assembly includes a first baffle plate, and the first baffle plate can be opened and closed at the first communication opening. .

Further, the switching assembly further includes a first baffle bracket and a first driving part, the first baffle plate is movably mounted on the first baffle plate bracket, and the first driving part is drivingly connected with the first baffle plate to drive the first baffle plate The shutter opens or closes the first communication opening.

Further, the installation box includes a second box body, a first air inlet buffer cavity is formed between the second box body and the volute main body, and the indoor air inlet is arranged on the second box body part, so that the indoor air inlet flows into the volute. The indoor air flows into the first fan cavity after passing through the first air inlet buffer cavity.

Further, the installation box includes a third box body portion, the third box body portion and the volute main body enclose a second air inlet buffer cavity, and the outdoor air inlet is arranged on the third box body portion; The second communication opening of the wind buffer cavity and the second air inlet buffer cavity.

Further, the switching assembly further includes a second baffle plate, the second baffle plate is movably arranged to be in a first shielding position for shielding the outdoor air outlet and a second shielding position for shielding the second communication opening.

Further, the switching assembly further includes a second baffle bracket and a second driving part, the second baffle plate is movably mounted on the second baffle bracket; the second driving part is drivingly connected with the second baffle plate to drive the second baffle plate The baffle moves to the first shielding position or the second shielding position.

Further, the switching assembly further includes: a third baffle plate, the third baffle plate is movably installed at the outdoor air inlet to open or close the outdoor air inlet.

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 at intervals along the vertical direction.

According to another aspect of the present invention, an air conditioner is provided, which includes a casing and a fresh air mechanism arranged in the casing, and the fresh air mechanism is the above fresh air mechanism.

Applying the technical scheme of the present utility model, the fresh air mechanism provided by the present utility model includes: a volute assembly, a switching assembly, a first fan and a second fan, and the volute assembly has an indoor air inlet, an indoor air outlet, an outdoor air inlet, and an outdoor outlet. The air outlet, the first fan cavity and the second fan cavity; the indoor air inlet and the outdoor air outlet are both connected with 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 The air vents are all communicated with the second fan cavity to form a second air duct for allowing outdoor air to enter the room; the first fan is installed in the first fan cavity, and the second fan is installed in the second fan cavity; the position of the switching component is switched 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 switch assembly. By adjusting the position of the switching component, the utility model can satisfy the circulation process of the three air supply modes. Specifically, by adjusting the position of the switching component, the outdoor air can be filtered and sent into the room through the second air duct, or it can be The indoor air is discharged to the outside through the first air duct, and the first air duct and the second air duct can also be connected, so that the indoor air is filtered and then sent out into the room. When the fresh air is filtered by the filter screen and introduced into the room and cannot be completely filtered, the fresh air mechanism of the utility model can make the indoor air enter the air conditioner again and then be filtered and sent into the room again, so that the indoor air can be circulated through the fresh air mechanism. Thereby improving the quality of the incoming fresh air.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Figure 1 shows a first exploded view of an embodiment of an air conditioner according to the present invention;

Figure 2 shows a second exploded view of the embodiment of the air conditioner according to the present invention;

FIG. 3 shows an enlarged schematic view of the area A of the air conditioner according to FIG. 1;

Figure 4 shows a third exploded view of the embodiment of the air conditioner according to the present invention;

5 shows a schematic diagram of the airflow direction of the outdoor air sent into the room according to the embodiment of the fresh air mechanism of the present invention;

6 shows a schematic diagram of the airflow direction of indoor air being fed into the outdoor according to an embodiment of the fresh air mechanism of the present invention;

FIG. 7 shows a schematic diagram of the airflow flow into the room after the indoor air is filtered according to an embodiment of the fresh air mechanism of the present invention;

8 shows a schematic plan view of an embodiment of a fresh air mechanism according to the present invention;

Fig. 9 shows the structural schematic diagram of the installation box according to the embodiment of the fresh air mechanism of the present invention;

Fig. 10 shows the structural schematic diagram of the volute cover according to the embodiment of the fresh air mechanism of the present invention;

Figure 11 shows a schematic structural diagram of a volute main body according to an embodiment of the fresh air mechanism of the present invention;

Fig. 12 shows the assembly schematic diagram of the embodiment of the fresh air mechanism according to the present utility model;

Fig. 13 shows the disassembled schematic diagram of the embodiment of the fresh air mechanism according to the present invention;

FIG. 14 shows an enlarged schematic view of the third baffle bracket of the fresh air mechanism in FIG. 1;

Figure 15 shows an enlarged schematic view of the third baffle according to the fresh air mechanism in Figure 1;

FIG. 16 shows a schematic view of the assembly of the first baffle and the second baffle of the fresh air mechanism in FIG. 2; and

FIG. 17 shows a schematic view of the assembly of the first baffle and the second baffle of the fresh air mechanism in FIG. 4 from another perspective.

Wherein, the above-mentioned drawings include the following reference signs:

10, volute assembly; 11, volute main body; 12, volute cover; 13, installation box; 131, first box body; 300, exhaust buffer chamber; 301, first communication opening; 132, second box 310, the first air inlet buffer cavity; 133, the third box body part; 320, the second air inlet buffer cavity; 302, the second communication opening; 101, the indoor air inlet; 102, the indoor air outlet; 103, Outdoor air inlet; 104, outdoor air outlet; 110, first fan cavity; 120, second fan cavity; 100, first air duct; 200, second air duct; 111, first fan; 1110, first Fan drive part; 121, second fan; 1210, second fan drive part; 20, switch assembly; 21, first baffle; 210, first baffle bracket; 211, first drive part; 22, second gear plate; 220, second baffle bracket; 221, second drive component; 23, third baffle; 230, third baffle bracket; 2301, strip hole; 2302, escape opening; 2303, limit movable rod; 2304, the third drive mounting hole; 231, the third drive component; 400, the filter screen support.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

1 to 17, the present invention provides a fresh air mechanism, including: a volute assembly 10, 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, The first fan cavity 110 and the second fan cavity 120; the indoor air inlet 101 and the outdoor air outlet 104 are both communicated with the first fan cavity 110 to form a first air duct 100 for discharging indoor air to the outdoors; Both the tuyere 102 and the outdoor air inlet 103 communicate with the second fan cavity 120 to form a second air duct 200 for letting the outdoor air enter the room; the first fan 111 and the second fan 121, the first fan 111 is installed on the In a fan cavity 110, the second fan 121 is installed in the second fan cavity 120; the switch assembly 20, the position of the switch assembly 20 is adjustable in the first air duct 100 and/or the second air duct 200, so as to pass Adjust the position of the switch assembly 20 to connect or disconnect the first air duct 100 and the second air duct 200 .

The fresh air mechanism provided by the present invention includes: a volute assembly 10, a switching assembly 20, a first fan 111 and a second fan 121, and the volute assembly 10 has an indoor air inlet 101, an indoor air outlet 102, an outdoor air inlet 103, and an outdoor outlet. The tuyere 104, the first fan cavity 110 and the second fan cavity 120; the indoor air inlet 101 and the outdoor air outlet 104 are all communicated 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 communicated with the second fan cavity 120 to form a second air duct 200 for making outdoor air enter the room; the first fan 111 is installed in the first fan cavity 110, The second fan 121 is installed in the second fan cavity 120; the position of the switch assembly 20 is adjustable in the first air duct 100 and/or the second air duct 200, so that the first air duct can be adjusted by adjusting the position of the switch assembly 20. 100 and the second air duct 200 are connected or disconnected. By adjusting the position of the switch assembly 20, the present invention can satisfy the circulation process of the three air supply modes. Specifically, by adjusting the position of the switch assembly 20, the outdoor air can be filtered and sent into the room through the second air duct 200. , the indoor air can also be discharged to the outside through the first air duct 100, or the first air duct 100 and the second air duct 200 can be connected, so that the indoor air is filtered and then sent out into the room. Under the environmental conditions of the air conditioner, when the outdoor fresh air is filtered by the filter screen and introduced into the room and cannot be completely filtered, the fresh air mechanism of the utility model can make the indoor air enter the air conditioner again and then be filtered and sent into the room again, so that the indoor air can pass through the air conditioner. The fresh air mechanism performs internal circulation, thereby improving the quality of the incoming fresh air.

In the embodiment of the present invention, the first fan 111 and the second fan 121 are both centrifugal fans, and specifically, the first fan 111 and the second fan 121 are both circular.

Specifically, the volute assembly 10 includes: a volute main body 11 and a volute cover 12. The volute main 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. The tuyere 102 is arranged on the volute cover 12 ; wherein, the switching assembly 20 is arranged on the side of the volute main body 11 away from the volute cover 12 .

As shown in FIGS. 5 to 8 , along the extending direction of the volute cover 12 , the indoor air outlet 102 is located below the second fan 121 .

Specifically, the volute assembly 10 includes: a volute main body 11 and a volute cover 12, the volute main 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; an installation box 13. The installation box 13 is arranged on the side of the volute main body 11 away from the volute cover 12. The installation box 13 includes a first box body 131, and an exhaust buffer cavity is enclosed between the first box body 131 and the volute main body 11. 300 , 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 .

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

As shown in FIG. 1 and FIG. 3 , the volute main 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 includes a first baffle 21 . The plate 21 is openably and closably provided at the first communication opening 301 .

Specifically, the switching assembly 20 further includes a first baffle bracket 210 and a first driving part 211 , the first baffle 21 is movably mounted on the first baffle bracket 210 , the first driving part 211 and the first baffle 21 The driving connection is used to drive the first shutter 21 to open or close the first communication opening 301 .

In the embodiment of the present invention, the first baffle plate 21 is rectangular, optionally, the corners of the first baffle plate 21 are arc-shaped chamfers.

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

Specifically, the installation box 13 includes a third box body portion 133, the third box body portion 133 and the volute main body 11 enclose a second air inlet buffer cavity 320, and the outdoor air inlet 103 is provided on the third box body portion 133; installation The box 13 is provided with a second communication opening 302 for communicating the exhaust buffer cavity 300 and the second air intake buffer cavity 320 . In the embodiment of the present invention, the switch 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 outdoor air outlet 104. The second blocking position of the communication opening 302 .

Specifically, the switching assembly 20 further includes a second baffle bracket 220 and a second driving part 221 , the second baffle 22 is movably mounted on the second baffle bracket 220 ; the second driving part 221 and the second baffle 22 The driving connection is used to drive the second shutter 22 to move to the first blocking position or the second blocking position.

In the embodiment of the present invention, the second baffle plate 22 is rectangular.

As shown in FIGS. 16 and 17 , optionally, a side wall of the first baffle bracket 210 away from the first baffle 21 and a side wall of the second baffle bracket 220 away from the second baffle 22 connected, so that the first baffle 21 and the second baffle 22 are arranged at intervals along the distribution direction from the installation box 13 to the volute main body 11; 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 arranged at intervals along the distribution direction from the installation box 13 to the volute main body 11 .

Optionally, the first driving part 211 and the second driving part 221 are located on the same side; or the first driving part 211 and the second driving part 221 are located on different sides.

Specifically, the first baffle 21 is mounted on the first baffle bracket 210 through a first rotating shaft, so that the first baffle 21 rotates around the first rotating shaft; the second baffle 22 is mounted on the second baffle through a second rotating shaft on the bracket 220, so that the second baffle plate 22 rotates around the second rotation axis.

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

Specifically, the fresh air mechanism of the present invention further includes a filter screen support 400, the filter screen is installed on the filter screen support 400, there are two filter screen supports 400, the two filter screen supports 400 are located at the same height, and the two filter screen supports 400 are installed between the first baffle bracket 210 (or the second baffle bracket 220 ) and the third baffle bracket 230 , and the filter screen bracket 400 is located between the third baffle bracket 230 and the volute main body 11 . Specifically, the two filter mesh supports 400 are installed inside the second air inlet buffer cavity 320 near the outdoor air inlet 103 .

Specifically, the switching assembly 20 further includes a third baffle bracket 230 and a third driving part 231 , and the third baffle plate 23 is movably mounted on the third baffle bracket 230 ; the third driving part 231 and the third baffle plate 23 The driving connection is used to drive the third baffle 23 to move to the first blocking position or the second blocking position.

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.

As shown in FIG. 14 and FIG. 15 , the third baffle bracket 230 includes a strip hole 2301 , an escape opening 2302 and a third drive mounting hole 2304 , and a limit movable rod 2303 is provided on the third baffle 23 , and the limit movable rod 2303 Cooperate with the bar-shaped hole 2301, so that the third driving member 231 drives the third baffle 23 to move along the extending direction of the bar-shaped hole 2301; the escape port 2302 is arranged corresponding to the outdoor air inlet 103, so that the outdoor air can flow into the second In the air inlet buffer cavity 320 ; the third driving component 231 and the third baffle 23 are mounted on the third baffle bracket 230 through the third driving mounting holes 2304 .

Optionally, the size of the escape port 2302 is the same as that of the outdoor air inlet 103 .

In the embodiment of the present invention, the shape of the third baffle plate 23 is a blade shape.

In the specific implementation process of the first embodiment of the present invention, as shown in FIG. 5 , both the first baffle 21 and the second baffle 22 are closed, and the first baffle 21 closes the first communication opening 301 at this time, The second baffle 22 closes the outdoor air outlet 104 , and the third baffle 23 opens to open the outdoor air inlet 103 . The outdoor air enters the second air inlet buffer cavity 320 from the outdoor air inlet 103, and flows through the second fan cavity 120 after being filtered by the filter screen, and then the second fan 121 drives the airflow to blow out from the indoor air outlet 102, and the airflow flows into indoor.

In the specific implementation process of the second embodiment of the present invention, as shown in FIG. 6 , the first baffle 21 is opened to open the first communication opening 301 to communicate with the exhaust buffer cavity 300 and the first fan cavity 110 , The second shutter 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 cavity 310 from the indoor air inlet 101 and then flows into the first fan cavity 110. The air flow is driven by the first fan 111 to flow through the first communication opening 301 and the air exhaust buffer cavity 300 in sequence. The outdoor air outlet 104 is discharged to the outside.

In the specific implementation process of the third embodiment of the present invention, as shown in FIG. 7 , the first baffle 21 is opened, so that the first communication opening 301 is opened to communicate the exhaust buffer cavity 300 and the first fan cavity 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, and then flows in sequence. After passing through the second communication opening 302 , the second air inlet buffer cavity 320 , and after being filtered by the filter screen, the air flows into the second fan cavity 120 .

In the 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 They 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 and the outdoor air outlet 104 and the outdoor air inlets 103 are arranged at intervals along the vertical direction.

The utility model also provides an air conditioner, which comprises a casing and a fresh air mechanism arranged in the casing, and the fresh air mechanism is the above fresh air mechanism.

Specifically, the air conditioner further includes a first fan driving part 1110 and a second fan driving part 1210 , the first fan driving part 1110 is drivingly connected with the first fan 111 , so that the first fan driving part 1110 drives the fan of the first fan 111 The blades rotate to drive the airflow. The first fan driving part 1110 is arranged at the center of the first fan 111; The fan blades of the second fan rotate to drive the airflow, and the second fan driving component 1210 is arranged at the center of the second fan.

The first fan driving part 1110 and the second fan driving part 1210 are both stepping motors, and the first fan 111 is located above the second fan 121 .

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.

Optionally, the size of the first fan 111 is larger than the size of the second fan 121 ; or the size of the first fan 111 is equal to the size of the second fan 121 .

From the above description, it can be seen that the above-mentioned embodiments of the present utility model achieve the following technical effects:

The fresh air mechanism provided by the present invention includes: a volute assembly 10, a switching assembly 20, a first fan 111 and a second fan 121, and the volute assembly 10 has an indoor air inlet 101, an indoor air outlet 102, an outdoor air inlet 103, and an outdoor outlet. The tuyere 104, the first fan cavity 110 and the second fan cavity 120; the indoor air inlet 101 and the outdoor air outlet 104 are all communicated 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 communicated with the second fan cavity 120 to form a second air duct 200 for making outdoor air enter the room; the first fan 111 is installed in the first fan cavity 110, The second fan 121 is installed in the second fan cavity 120; the position of the switch assembly 20 is adjustable in the first air duct 100 and/or the second air duct 200, so that the first air duct can be adjusted by adjusting the position of the switch assembly 20. 100 and the second air duct 200 are connected or disconnected. By adjusting the position of the switch assembly 20, the present invention can satisfy the circulation process of the three air supply modes. Specifically, by adjusting the position of the switch assembly 20, the outdoor air can be filtered and sent into the room through the second air duct 200. , the indoor air can also be discharged to the outside through the first air duct 100, or the first air duct 100 and the second air duct 200 can be connected, so that the indoor air is filtered and then sent out into the room. Under the environmental conditions of the air conditioner, when the outdoor fresh air is filtered by the filter screen and introduced into the room and cannot be completely filtered, the fresh air mechanism of the utility model can make the indoor air enter the air conditioner again and then be filtered and sent into the room again, so that the indoor air can pass through the air conditioner. The fresh air mechanism performs internal circulation, thereby improving the quality of the incoming fresh air.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. 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 (12)

1. A new trend mechanism, its characterized in that includes:

the volute component (10) is provided with 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 communicated with the first fan cavity (110) to form a first air duct (100) for discharging indoor air outdoors; the indoor air outlet (102) and the outdoor air inlet (103) are both communicated with the second fan cavity (120) to form a second air duct (200) for enabling outdoor air to enter the indoor space;

a first fan (111) and a second fan (121), the first fan (111) being mounted in the first fan cavity (110), the second fan (121) being mounted in the second fan cavity (120);

a switching assembly (20), wherein the switching assembly (20) is arranged on the first air duct (100) and/or the second air duct (200) in a position adjustable mode, 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 assembly (20).

2. The fresh air mechanism of claim 1 wherein the volute assembly (10) comprises:

the volute comprises 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 the first fan cavity (110) and the 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 a side of the volute body (11) remote from the volute cover (12).

3. The fresh air mechanism of claim 1 wherein the volute assembly (10) comprises:

the volute comprises a volute body (11) and a volute cover (12), wherein the volute body (11) and the volute cover (12) are mutually spliced to enclose the first fan cavity (110) and the second fan cavity (120);

the mounting box (13) is arranged on one side, away from the volute casing cover (12), of the volute casing body (11), the mounting box (13) comprises a first casing part (131), an exhaust buffer cavity (300) is defined between the first casing part (131) and the volute casing body (11), and the outdoor air outlet (104) is arranged on the first casing part (131) so that air flow in the first fan cavity (110) flows out of the outdoor air outlet (104) after passing through the exhaust buffer cavity (300).

4. The fresh air mechanism of claim 3, wherein a first communication opening (301) for communicating the first fan cavity (110) and the exhaust buffer chamber (300) is disposed on the volute body (11), and the switching assembly (20) comprises a first baffle (21), and the first baffle (21) is disposed at the first communication opening (301) in an openable and closable manner.

5. The fresh air mechanism as claimed in claim 4, wherein the switching assembly (20) further comprises a first baffle bracket (210) and a first driving member (211), the first baffle (21) is movably mounted on the first baffle bracket (210), and the first driving member (211) is in driving connection with the first baffle (21) to drive the first baffle (21) to open or close the first communication opening (301).

6. The fresh air mechanism as claimed in claim 3, wherein the mounting box (13) includes a second box portion (132), a first inlet buffer chamber (310) is formed between the second box portion (132) and the scroll body (11), and the indoor air inlet (101) is disposed on the second box portion (132) such that the indoor air flowing from the indoor air inlet (101) flows into the first fan cavity (110) through the first inlet buffer chamber (310).

7. The fresh air mechanism as claimed in claim 6, wherein the mounting box (13) comprises a third box portion (133), the third box portion (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 portion (133); and a second communicating opening (302) for communicating the air exhaust buffer cavity (300) with the second air inlet buffer cavity (320) is arranged on the mounting box (13).

8. The fresh air mechanism of claim 7 wherein the switch assembly (20) further comprises a second shutter (22), the second shutter (22) being movably disposed to assume a first blocking position for blocking the outdoor air outlet (104) and a second blocking position for blocking the second communication opening (302).

9. The fresh air mechanism of claim 8 wherein the switch assembly (20) further comprises a second baffle bracket (220) and a second drive member (221), the second baffle (22) being movably mounted on the second baffle bracket (220); the second driving part (221) is in driving connection with the second baffle (22) to drive the second baffle (22) to move to the first shielding position or the second shielding position.

10. The fresh air mechanism of any one of claims 1 to 9 wherein the switching assembly (20) further comprises:

a third damper (23), wherein the third damper (23) is movably installed at the outdoor air inlet (103) to open or close the outdoor air inlet (103).

11. The fresh air mechanism of any one of claims 1 to 9,

the indoor air inlet (101) is arranged at the top of the volute component (10); and/or

The indoor air outlet (102) is arranged at the bottom of the volute component (10); and/or

The indoor air inlet (101) and the indoor air outlet (102) are respectively arranged at two opposite sides of the volute component (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 component (10); and/or

The indoor air inlet (101), the outdoor air outlet (104) and the outdoor air inlet (103) are sequentially arranged at intervals in the vertical direction.

12. An air conditioner comprising a housing and a fresh air mechanism disposed in the housing, wherein the fresh air mechanism is as claimed in any one of claims 1 to 11.

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