Fresh air device and air conditioner

Abstract

The utility model provides a fresh air device and an air conditioner, relates to the technical field of air conditioners, and solves the technical problem of low indoor air exchange efficiency caused by the fact that a fresh air function and an exhaust function of a fresh air device in the prior art cannot be simultaneously started. The fresh air device comprises a device body, at least two sets of fan assemblies are arranged in the device body, an air inlet cavity and a first air door assembly are arranged at an air inlet of each fan assembly, and a fresh air inlet and an indoor air inlet are formed in each air inlet cavity; the first air door assembly is used for communicating the fresh air inlet with the air inlet of the fan assembly or communicating the indoor air inlet with the air inlet of the fan assembly; an air outlet of the fan assembly is provided with an air outlet cavity and a second air door assembly, the air outlet cavity is provided with an indoor air outlet and an exhaust outlet, and the second air door assembly is used for communicating the indoor air outlet with the air outlet of the fan assembly or communicating the exhaust outlet with the air outlet of the fan assembly. The utility model provides the fresh air device capable of improving the indoor air exchange efficiency.

Description

Technical Field

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

[0002] Air conditioners have become an indispensable household appliance in modern human life. As people's requirements for quality of life continue to increase, consumers are pursuing higher and higher air quality. They hope that the environment they live in is healthy and clean. Therefore, fresh air air conditioners that can improve the air quality in air-conditioned rooms have been favored by consumers as soon as they were launched.

[0003] Currently, the air conditioners with fresh air function on the market can be roughly divided into two types: one is only with fresh air function, that is, fresh air is transported from outdoors to indoors, and the exhaust function of this air conditioner relies on the positive pressure in the room to exhaust air to the outdoors through the gap between the room and the outside world; the other is based on the above, but also has an additional exhaust function, that is, air is extracted from the room to be discharged outdoors, but this exhaust function cannot be turned on at the same time as the fresh air function, and you can only choose one of the two working states: fresh air and exhaust. Utility Model Content

[0004] The purpose of the utility model is to provide a fresh air device and an air conditioner to solve the technical problem that the fresh air device in the prior art cannot simultaneously start the fresh air function and the exhaust function, resulting in low indoor ventilation efficiency. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The fresh air device provided by the utility model comprises a device body;

[0007] At least two groups of fan assemblies are arranged in the body of the device, and the air inlet of each group of the fan assemblies is provided with an air inlet chamber and a first damper assembly, and the air inlet chamber is provided with a fresh air inlet and an indoor air inlet, and the first damper of the first damper assembly is used to conduct the fresh air inlet and the air inlet of the fan assembly; or, the first damper of the first damper assembly is used to conduct the indoor air inlet and the air inlet of the fan assembly;

[0008] The air outlet of each group of the fan assemblies is provided with an air outlet chamber and a second damper assembly, the air outlet chamber is provided with an indoor air outlet and an exhaust outlet, the second damper of the second damper assembly is used to connect the indoor air outlet and the air outlet of the fan assembly; or, the second damper of the second damper assembly is used to connect the exhaust outlet and the air outlet of the fan assembly.

[0009] Furthermore, the first damper of the first damper assembly reciprocates between the fresh air inlet and the indoor air inlet; and / or the second damper of the second damper assembly reciprocates between the indoor air outlet and the exhaust outlet.

[0010] Furthermore, two first chambers are arranged in the body of the device, and two groups of the fan components are arranged, and the two groups of the fan components are respectively arranged in the two first chambers;

[0011] The air inlet chamber and the air outlet chamber are arranged in the first chamber. The air inlet chamber is connected to the air inlet of the fan assembly, and the air outlet chamber is connected to the air outlet of the fan assembly.

[0012] Further, the air inlet chamber has a fresh air inlet chamber and an indoor air inlet chamber, the fresh air inlet port is arranged on the fresh air inlet chamber, and the indoor air inlet port is arranged on the indoor air inlet chamber;

[0013] The first damper of the first damper assembly reciprocates on the fresh air inlet cavity and the indoor air inlet cavity to connect the fresh air inlet and the air inlet of the fan assembly or connect the indoor air inlet and the air inlet of the fan assembly.

[0014] Furthermore, a first partition is provided in the middle of the device body, and the first partition divides the device body into two first chambers;

[0015] A partition component is disposed in each of the two first chambers, and the partition component divides the first chamber into the air inlet chamber and the air outlet chamber;

[0016] A second partition is arranged in the air inlet chamber, and the second partition divides the air inlet chamber into a fresh air inlet chamber and an indoor air inlet chamber.

[0017] Furthermore, the partition assembly includes ribs and baffles, the ribs are arranged between the device body and the fan assembly; the baffles are connected to the ribs and the device body at the same time to separate the first chamber into the air inlet chamber and the air outlet chamber.

[0018] Furthermore, a third partition is provided in the air outlet chamber, and the third partition divides the air outlet chamber into an indoor air outlet chamber and an exhaust chamber. The indoor air outlet is provided on the indoor air outlet chamber, and the exhaust outlet is provided on the exhaust chamber; the second air gate of the second air gate assembly reciprocates on the indoor air outlet chamber and the exhaust chamber.

[0019] Furthermore, the two groups of fan assemblies include a first volute, a first fan blade, a second volute and a second fan blade, the first fan blade is arranged in the first volute, the second fan blade is arranged in the second volute, the first fan blade and the second fan blade are coaxially arranged and installed together on the bidirectional output shaft of the drive motor.

[0020] Furthermore, the two groups of fan components are symmetrically arranged, and the two groups of air inlet chambers and the two groups of air outlet chambers are symmetrically arranged.

[0021] Furthermore, the fresh air inlet, the indoor air inlet, the indoor air outlet and the exhaust outlet are one of circular, rectangular and elliptical.

[0022] Further, the first damper assembly includes a first damper and a first drive assembly, the first drive assembly includes a first motor, a first gear and a first rack, the first motor is connected to the first gear, the first gear is meshed with the first rack for transmission, and the first rack is connected to the first damper;

[0023] The second damper assembly includes a second damper and a second drive assembly, the second drive assembly includes a second motor, a second gear and a second rack, the second motor is connected to the second gear, the second gear is meshed with the second rack for transmission, and the second rack is connected to the second damper.

[0024] Furthermore, the fresh air inlet, the indoor air inlet, the indoor air outlet and the exhaust outlet are one of circular, rectangular and elliptical.

[0025] Furthermore, a filter is provided on the fresh air inlet; and / or a filter is provided on the indoor air inlet; and / or a filter is provided on the indoor air outlet.

[0026] Furthermore, a heat-insulating layer is provided on the device body.

[0027] An air conditioner comprises the fresh air device as described above.

[0028] The beneficial effects of the utility model are as follows: the fresh air device and air conditioner provided by the utility model include a device body, wherein at least two groups of fan assemblies are arranged in the device body, the air inlet of each group of the fan assemblies is provided with an air inlet chamber and a first damper assembly, the first damper assembly can realize the conduction between the fresh air inlet and the air inlet of the fan assembly or the indoor air inlet and the air inlet of the fan assembly, the air outlet of each group of the fan assemblies is provided with an air outlet chamber and a second damper assembly, the second damper assembly can realize the conduction between the indoor air outlet and the air outlet of the fan assembly or the exhaust outlet and the air outlet of the fan assembly, thereby realizing the simultaneous operation of the two groups of fan assemblies, and can realize any combination of the fresh air function and the exhaust function, the fresh air function and the indoor air function, and the exhaust function and the indoor air function at the same time as needed, thereby improving the indoor ventilation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a three-dimensional diagram (I) of the utility model;

[0031] Figure 2 It is a three-dimensional diagram (two) of the utility model;

[0032] Figure 3 It is a structural schematic diagram of a fan assembly of the first embodiment of the utility model;

[0033] Figure 4 It is a partial structural schematic diagram of the utility model (I);

[0034] Figure 5 It is a partial structural schematic diagram of the utility model (II);

[0035] Figure 6 It is a structural schematic diagram of the first damper assembly of the utility model;

[0036] Figure 7 It is a structural schematic diagram of the second damper assembly of the utility model;

[0037] Figure 8 It is a partial structural schematic diagram of the device body of the utility model (I);

[0038] Fig. 9 It is a partial structural schematic diagram of the device body of the utility model (II);

[0039] Fig.10 This is a schematic diagram of the air flow direction of the fresh air function of the utility model;

[0040] Fig.11 It is a schematic diagram of the air flow direction of the exhaust function of the utility model;

[0041] Fig.12 It is a schematic diagram of the air flow direction of the circulating air supply function of the utility model.

[0042] In the figure, 1 is a shell; 2 is a first partition; 3 is a first volute; 4 is a first fan blade; 5 is a second volute; 6 is a second fan blade; 7 is a driving motor; 8 is a rib; 9 is a baffle; 10 is a second partition; 11 is a fresh air inlet chamber; 12 is an indoor air inlet chamber; 13 is a fresh air inlet; 14 is an indoor air inlet; 15 is an air outlet chamber; 16 is an indoor air outlet; 17 is an exhaust port; 18 is a first damper assembly; 19 is a first damper; 20 is a first gear; 21 is a first rack; 22 is a second damper assembly; 23 is an air inlet chamber. DETAILED DESCRIPTION

[0043] Please refer to the attached figure below Figures 1 to 12 And the text content understands the content of the utility model and the difference between the utility model and the prior art. The following is a further detailed description of the technical solution (including the preferred technical solution) of the utility model by means of the accompanying drawings and the enumeration of some optional embodiments of the utility model. It should be noted that: any technical feature and any technical solution in the present embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, it is impossible to exhaustively list all the alternative technical features and alternative technical solutions of the utility model in this document, and it is not convenient for the implementation of each technical feature to emphasize that it is one of the optional multiple implementations, so those skilled in the art should know that: any technical means provided by the utility model can be replaced or any two or more technical means or technical features provided by the utility model can be combined with each other to obtain a new technical solution. Any technical feature and any technical solution in this embodiment do not limit the scope of protection of the utility model. The scope of protection of the utility model should include any alternative technical solutions that can be thought of by those skilled in the art without creative labor and new technical solutions obtained by combining any two or more technical means or technical features provided by the utility model.

[0044] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means two or more than two; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] The utility model provides a fresh air device and an air conditioner for improving indoor ventilation efficiency.

[0047] Combine the following Figures 1 to 12 The technical solution provided by the utility model is described in more detail.

[0048] The utility model provides a fresh air device, comprising a device body;

[0049] At least two groups of fan assemblies are arranged in the device body, and the air inlet of each group of fan assemblies is provided with an air inlet chamber 23 and a first damper assembly 18, and the air inlet chamber 23 is provided with a fresh air inlet 13 and an indoor air inlet 14, and the first damper 19 of the first damper assembly 18 is used to conduct the fresh air inlet 13 and the air inlet of the fan assembly, or conduct the indoor air inlet 14 and the air inlet of the fan assembly;

[0050] The air outlet of each fan assembly is provided with an air outlet chamber 15 and a second damper assembly 22, the air outlet chamber 15 is provided with an indoor air outlet 16 and an exhaust outlet 17, the second damper of the second damper assembly 22 is used to connect the indoor air outlet and the air outlet of the fan assembly, or to connect the exhaust outlet 17 and the air outlet of the fan assembly.

[0051] The fresh air device provided by the utility model comprises a device body, wherein at least two groups of fan assemblies are arranged in the device body, the air inlet of each group of fan assemblies is provided with an air inlet chamber 23 and a first damper assembly 18, the first damper assembly 18 can realize the conduction between the fresh air inlet 13 and the air inlet of the fan assembly or the indoor air inlet 14 and the air inlet of the fan assembly, the air outlet of each group of fan assemblies is provided with an air outlet chamber 15 and a second damper assembly 22, the second damper assembly 22 can realize the conduction between the indoor air outlet and the air outlet of the fan assembly or the exhaust outlet 17 and the air outlet of the fan assembly, thereby realizing the simultaneous operation of the two groups of fan assemblies, and can realize any combination of the fresh air function and the exhaust function, the fresh air function and the indoor air function, and the exhaust function and the indoor air function at the same time as needed, thereby improving the indoor ventilation efficiency.

[0052] Furthermore, the fresh air device provided by the utility model has at least two sets of fan components arranged in the device body, which can be applied to large air volume scenes, thus solving the problem of high noise in large air volume scenes existing in existing fresh air devices.

[0053] It can be understood that the fresh air device provided by the utility model can realize switching of nine working states through reasonable setting, namely, single-sided fresh air function, single-sided exhaust function, single-sided circulating air supply function, double-sided fresh air function, double-sided exhaust function, double-sided circulating air supply function, fresh air function / exhaust function, fresh air function / circulating air supply function, and exhaust / circulating air supply function.

[0054] In some embodiments of the present invention, the first damper 19 of the first damper assembly 18 reciprocates between the fresh air inlet 13 and the indoor air inlet 14; and / or; the second damper of the second damper assembly 22 reciprocates between the indoor air outlet 16 and the exhaust outlet 17.

[0055] In some of the above embodiments of the utility model, the first damper 19 reciprocates between the fresh air inlet 13 and the indoor air inlet 14, and can realize the conduction between the fresh air inlet 13 and the air inlet of the fan assembly, or the conduction between the indoor air inlet 14 and the air inlet of the fan assembly. The second damper reciprocates between the indoor air outlet 16 and the exhaust outlet 17, and can realize the conduction between the indoor air outlet and the air outlet of the fan assembly, or the conduction between the exhaust outlet 17 and the air outlet of the fan assembly.

[0056] In some embodiments of the utility model, the fresh air device provided by the utility model includes a device body;

[0057] At least two groups of fan components are arranged in the device body, and the air inlet of each group of fan components is provided with a fresh air inlet chamber 11, an indoor air inlet chamber 12 and a first damper assembly 18, the fresh air inlet chamber 11 is provided with a fresh air inlet 13, the indoor air inlet chamber 12 is provided with an indoor air inlet 14, and the first damper 19 of the first damper assembly 18 reciprocates on the fresh air inlet chamber 11 and the indoor air inlet chamber 12 to conduct the fresh air inlet 13 and the air inlet of the fan component or conduct the indoor air inlet 14 and the air inlet of the fan component;

[0058] The air outlet of each fan assembly is provided with an indoor air outlet cavity, an exhaust cavity and a second damper assembly 22. The indoor air outlet cavity is provided with an indoor air outlet 16, and the exhaust cavity is provided with an exhaust outlet 17. The second damper of the second damper assembly 22 reciprocates on the indoor air outlet cavity and the exhaust cavity to connect the indoor air outlet and the air outlet of the fan assembly or to connect the exhaust outlet 17 and the air inlet of the fan assembly.

[0059] The fresh air device provided by the utility model comprises a device body, wherein at least two groups of fan components are arranged in the device body, the air inlet of each group of fan components is provided with a fresh air inlet chamber 11, an indoor air inlet chamber 12 and a first damper component 18, the first damper component 18 can realize opening of one of the fresh air inlet chamber 11 and the indoor air inlet chamber 12, the air outlet of each group of fan components is provided with an indoor air outlet chamber, an exhaust chamber and a second damper component 22, the second damper component 22 can realize opening of one of the indoor air outlet chamber and the exhaust chamber, thereby realizing the simultaneous operation of the two groups of fan components, and can realize any combination of fresh air function and exhaust function, fresh air function and indoor air function, exhaust function and indoor air function at the same time as needed, thereby improving the indoor ventilation efficiency.

[0060] In some embodiments of the present utility model, two sets of fan assemblies are disposed in the device body;

[0061] The device body comprises a shell 1, a first partition plate 2 is arranged in the middle of the shell 1, the first partition plate 2 divides the shell 1 into two first chambers, and two groups of fan components are respectively arranged in the two groups of first chambers;

[0062] A partition assembly is provided in each of the two groups of first chambers, and the partition assembly divides the first chamber into an air inlet chamber 23 and an air outlet chamber 15, the air inlet chamber 23 is connected to the air inlet of the fan assembly, and the air outlet chamber 15 is connected to the air outlet of the fan assembly;

[0063] A second partition 10 is provided in the air inlet chamber 23 , and the second partition 10 divides the air inlet chamber 23 into a fresh air inlet chamber 11 and an indoor air inlet chamber 12 . The fresh air inlet port 13 is provided on the fresh air inlet chamber 11 , and the indoor air inlet port 14 is provided on the indoor air inlet chamber 12 .

[0064] In some of the above-mentioned embodiments of the present invention, two groups of fan assemblies are arranged in the device body, and the first partition plate 2 divides the shell 1 into two first chambers, the two groups of fan assemblies are respectively arranged in the two first chambers, and each first chamber is provided with a partition assembly, the partition assembly divides the first chamber into an air inlet chamber 23 and an air outlet chamber 15, the air inlet chamber 23 is connected to the air inlet of the fan assembly, and the air outlet chamber 15 is connected to the air outlet of the fan assembly, the fan assembly takes in air through the air inlet chamber 23, and exhausts air through the air outlet chamber 15; and, the second partition plate 10 divides the air inlet chamber 23 into a fresh air inlet chamber 11 and an indoor air inlet chamber 12, thereby ensuring that the fresh air device provided by the present invention has a compact structure, a simple structure, and can simultaneously realize any combination of fresh air function and exhaust function, fresh air function and indoor air function, exhaust function and indoor air function as needed, thereby improving indoor ventilation efficiency.

[0065] In some optional embodiments of the utility model, a third partition is provided in the air outlet chamber 15, and the third partition divides the air outlet chamber 15 into an indoor air outlet chamber and an exhaust chamber. The indoor air outlet 16 is provided on the indoor air outlet chamber, and the exhaust outlet 17 is provided on the exhaust chamber.

[0066] In some preferred embodiments of the present invention, the two groups of fan assemblies are symmetrically arranged, and the two groups of air inlet chambers 23 and the two groups of air outlet chambers 15 are symmetrically arranged.

[0067] In some embodiments of the utility model, the partition assembly includes ribs 8 and baffles 9, and the ribs 8 are arranged between the shell 1 and the fan assembly; the baffles 9 are connected to the ribs 8 and the shell 1 at the same time to divide the first chamber into an air inlet chamber 23 and an air outlet chamber 15.

[0068] In some of the above-mentioned embodiments of the utility model, the partition assembly is composed of a rib 8 arranged between the shell 1 and the fan assembly and a baffle 9 between the rib 8 and the shell 1, so as to divide the first chamber into an air inlet chamber 23 and an air outlet chamber 15, with a compact and simple structure.

[0069] In some specific embodiments of the present invention, two groups of fan assemblies include a first volute 3, a first fan blade 4, a second volute 5, a second fan blade 6 and a drive motor 7. The first fan blade 4 is arranged in the first volute 3, the second fan blade 6 is arranged in the second volute 5, the first fan blade 4 and the second fan blade 6 are coaxially arranged and installed together on the bidirectional output shaft of the drive motor 7.

[0070] In some specific embodiments of the utility model mentioned above, two groups of fan assemblies are driven by the same drive motor 7, and the drive motor 7 has a dual output shaft. The drive motor 7 drives the first fan blade 4 and the second fan blade 6 to rotate at the same time. Under the same air volume requirement, the required speed of the fan assembly is reduced, the service life is increased, and the fan noise is reduced.

[0071] Further, the first damper assembly 18 includes a first damper 19 and a first drive assembly, the first drive assembly includes a first motor, a first gear 20 and a first rack 21, the first motor is connected to the first gear 20, the first gear 20 is meshed with the first rack 21 for transmission, and the first rack 21 is connected to the first damper 19;

[0072] The second damper assembly 22 includes a second damper and a second drive assembly. The second drive assembly includes a second motor, a second gear and a second rack. The second motor is connected to the second gear. The second gear is meshed with the second rack for transmission. The second rack is connected to the second damper.

[0073] In this further improvement, the first damper 19 is driven by the first motor, the first gear 20, and the first rack 21 to reciprocate on the fresh air inlet chamber 11 and the indoor air inlet chamber 12 to connect the fresh air inlet 13 and the air inlet of the fan assembly or connect the indoor air inlet 14 and the air inlet of the fan assembly;

[0074] The second damper is driven to reciprocate on the indoor air outlet cavity and the exhaust cavity by the second motor, the second gear and the second rack to connect the indoor air outlet and the air outlet of the fan assembly or connect the exhaust outlet 17 and the air outlet of the fan assembly.

[0075] Optionally, the fresh air inlet 13, the indoor air inlet 14, the indoor air outlet 16 and the exhaust port 17 are in a circular, rectangular, elliptical or irregular shape.

[0076] The utility model also provides an air conditioner, comprising the above fresh air device.

[0077] Embodiment 1:

[0078] The fresh air device provided by the utility model is as follows Figure 1-9 As shown, the device includes a device body, in which a first volute 3, a first fan blade 4, a second volute 5, a second fan blade 6 and a drive motor 7 are arranged. The first fan blade 4 is arranged in the first volute 3, and the second fan blade 6 is arranged in the second volute 5. The first fan blade 4 and the second fan blade 6 are coaxially arranged and installed together on the bidirectional output shaft of the drive motor 7.

[0079] The device body includes a shell 1, and a first partition 2 is arranged in the middle of the shell 1. The first partition 2 divides the shell 1 into two first chambers. The first volute 3 and the first fan blade 4, the second volute 5 and the second fan blade 6 are respectively arranged in the two groups of first chambers. A through hole is arranged on the first partition 2, and the drive motor 7 is passed through the through hole.

[0080] A partition assembly is also provided in the first chamber, which divides the first chamber into an air inlet chamber 23 and an air outlet chamber 15. The air inlet chamber 23 is connected to the air inlet of the fan assembly, and the air outlet chamber 15 is connected to the air outlet of the fan assembly.

[0081] Specifically, the partition assembly includes ribs 8 and baffles 9. The ribs 8 are arranged between the shell 1 and the first volute 3 and between the shell 1 and the second volute 5. The baffles 9 are connected to the ribs 8 and the shell 1 at the same time to separate the first chamber into an air inlet chamber 23 and an air outlet chamber 15.

[0082] A second partition 10 is provided in the air inlet chamber 23, and the second partition 10 divides the air inlet chamber 23 into a fresh air inlet chamber 11 and an indoor air inlet chamber 12. The fresh air inlet chamber 11 is provided with a fresh air inlet port 13, and the indoor air inlet chamber 12 is provided with an indoor air inlet port 14; the air outlet chamber 15 is provided with an indoor air outlet 16 and an exhaust port 17.

[0083] Furthermore, it also includes a first damper assembly 18 and a second damper assembly 22, the first damper assembly 18 includes a first damper 19, a first motor, a first gear 20 and a first rack 21, the first motor is connected to the first gear 20, the first gear 20 is meshed with the first rack 21 for transmission, and the first rack 21 is connected to the first damper 19; the first motor drives the first damper 19 to reciprocate on the fresh air inlet chamber 11 and the indoor air inlet chamber 12 to connect the fresh air inlet 13 and the air inlet of the fan assembly or connect the indoor air inlet 14 and the air inlet of the fan assembly.

[0084] Since the first damper assembly 18 and the second damper assembly 22 have substantially the same structure, the second damper, the second motor, the second gear and the second rack are not numbered.

[0085] The second damper assembly 22 includes a second damper, a second motor, a second gear and a second rack. The second motor is connected to the second gear. The second gear is meshed with the second rack for transmission. The second rack is connected to the second damper.

[0086] The second motor drives the second damper to reciprocate on the indoor air outlet 16 and the exhaust port 17 to connect the indoor air outlet and the air outlet of the fan assembly or connect the exhaust port 17 and the air inlet of the fan assembly.

[0087] The utility model also provides an air conditioner, comprising the above fresh air device.

[0088] The working process of the air conditioner provided by the utility model is as follows:

[0089] Fresh air function: Fig.10As shown, the first motor drives the first damper 19 to move and connect the fresh air inlet 13 and the air inlet of the first volute 3 or the second volute 5, and close the indoor air inlet 14 and the air inlet of the fan assembly;

[0090] The second motor drives the second damper to move and connect the indoor air outlet and the air outlet of the first volute 3 or the second volute 5, and close the air outlet 17 and the air inlet of the fan assembly;

[0091] At this time, the first fan blade 4 or the second fan blade 6 inhales fresh air from the fresh air inlet 13, and the air flows into the room through the fresh air inlet 13, the fresh air inlet cavity 11, the first volute 3 or the second volute 5, the air outlet cavity 15, and the indoor air outlet.

[0092] Exhaust function: Fig.11 As shown, the first motor drives the first damper 19 to move and close the fresh air inlet 13 and the air inlet of the first volute 3 or the second volute 5, and opens the indoor air inlet 14 and the air inlet of the fan assembly;

[0093] The second motor drives the second damper to move and close the indoor air outlet and the air outlet of the first volute 3 or the second volute 5, and connect the exhaust port 17 and the air inlet of the fan assembly;

[0094] At this time, the first fan blade 4 or the second fan blade 6 inhales indoor air from the indoor air inlet 14, and the air flow is discharged outdoors through the indoor air inlet 14, the indoor air inlet cavity 12, the first volute 3 or the second volute 5, the air outlet cavity 15, and the exhaust port 17.

[0095] Circulation air supply function: Fig.12 As shown, the first motor drives the first damper 19 to move and close the fresh air inlet 13 and the air inlet of the first volute 3 or the second volute 5, and opens the indoor air inlet 14 and the air inlet of the fan assembly;

[0096] The second motor drives the second damper to move and connect the indoor air outlet and the air outlet of the first volute 3 or the second volute 5, and close the air outlet 17 and the air inlet of the fan assembly;

[0097] At this time, the first fan blade 4 or the second fan blade 6 inhales indoor air from the indoor wind inlet 14, and the airflow enters the room through the indoor wind inlet 14, the indoor wind inlet cavity 12, the first volute 3 or the second volute 5, the air outlet cavity 15, and the indoor wind outlet 16.

[0098] Since two first chambers are arranged in the device body, the structures in the two first chambers are the same.

[0099] The air conditioner provided by the utility model can realize switching among nine working states, namely, single-side fresh air function, single-side exhaust function, single-side circulating air supply function, double-side fresh air function, double-side exhaust function, double-side circulating air supply function, fresh air function / exhaust function, fresh air function / circulating air supply function, and exhaust function / circulating air supply function.

[0100] Embodiment 2:

[0101] The difference between the present embodiment 2 and the embodiment 1 is that a third partition is provided in the air outlet chamber 15, and the third partition divides the air outlet chamber 15 into an indoor air outlet chamber and an exhaust chamber. The indoor air outlet chamber is provided with an indoor air outlet 16, and the exhaust chamber is provided with an exhaust outlet 17.

[0102] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0103] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A fresh air device, characterized in that: The device comprises a main body; At least two groups of fan assemblies are arranged in the body of the device, and the air inlet of each group of the fan assemblies is provided with an air inlet chamber and a first damper assembly, and the air inlet chamber is provided with a fresh air inlet and an indoor air inlet, and the first damper of the first damper assembly is used to conduct the fresh air inlet and the air inlet of the fan assembly; or, the first damper of the first damper assembly is used to conduct the indoor air inlet and the air inlet of the fan assembly; The air outlet of each group of the fan assemblies is provided with an air outlet chamber and a second damper assembly, the air outlet chamber is provided with an indoor air outlet and an exhaust outlet, the second damper of the second damper assembly is used to connect the indoor air outlet and the air outlet of the fan assembly; or, the second damper of the second damper assembly is used to connect the exhaust outlet and the air outlet of the fan assembly.

2. The fresh air device according to claim 1, characterized in that: The first damper of the first damper assembly reciprocates between the fresh air inlet and the indoor air inlet; and / or the second damper of the second damper assembly reciprocates between the indoor air outlet and the exhaust outlet.

3. The fresh air device according to claim 1, characterized in that: Two first chambers are arranged in the device body, and two groups of fan components are arranged, and the two groups of fan components are respectively arranged in the two first chambers; The air inlet chamber and the air outlet chamber are arranged in the first chamber. The air inlet chamber is connected to the air inlet of the fan assembly, and the air outlet chamber is connected to the air outlet of the fan assembly.

4. The fresh air device according to claim 2, characterized in that: The air inlet chamber comprises a fresh air inlet chamber and an indoor air inlet chamber, the fresh air inlet port is arranged on the fresh air inlet chamber, and the indoor air inlet port is arranged on the indoor air inlet chamber; The first damper of the first damper assembly reciprocates on the fresh air inlet cavity and the indoor air inlet cavity to connect the fresh air inlet and the air inlet of the fan assembly or connect the indoor air inlet and the air inlet of the fan assembly.

5. The fresh air device according to claim 4, characterized in that: A first partition is provided in the middle of the device body, and the first partition divides the device body into two first chambers; A partition component is disposed in each of the two first chambers, and the partition component divides the first chamber into the air inlet chamber and the air outlet chamber; A second partition is arranged in the air inlet chamber, and the second partition divides the air inlet chamber into a fresh air inlet chamber and an indoor air inlet chamber.

6. The fresh air device according to claim 5, characterized in that: The partition assembly includes ribs and baffles, wherein the ribs are arranged between the device body and the fan assembly; the baffles are connected to the ribs and the device body at the same time to separate the first chamber into the air inlet chamber and the air outlet chamber.

7. The fresh air device according to claim 4, characterized in that: A third partition is arranged in the air outlet chamber, and the third partition divides the air outlet chamber into an indoor air outlet chamber and an exhaust chamber. The indoor air outlet is arranged on the indoor air outlet chamber, and the exhaust outlet is arranged on the exhaust chamber; the second air gate of the second air gate assembly reciprocates on the indoor air outlet chamber and the exhaust chamber.

8. The fresh air device according to claim 3, characterized in that: The two groups of fan assemblies include a first volute, a first fan blade, a second volute and a second fan blade. The first fan blade is arranged in the first volute, and the second fan blade is arranged in the second volute. The first fan blade and the second fan blade are coaxially arranged and installed together on the bidirectional output shaft of the drive motor.

9. The fresh air device according to claim 3, characterized in that: The two groups of fan components are symmetrically arranged, and the two groups of air inlet chambers and the two groups of air outlet chambers are symmetrically arranged.

10. The fresh air device according to any one of claims 1 to 9, characterized in that: The first damper assembly includes a first damper and a first drive assembly, the first drive assembly includes a first motor, a first gear and a first rack, the first motor is connected to the first gear, the first gear is meshed with the first rack for transmission, and the first rack is connected to the first damper; The second damper assembly includes a second damper and a second drive assembly, the second drive assembly includes a second motor, a second gear and a second rack, the second motor is connected to the second gear, the second gear is meshed with the second rack for transmission, and the second rack is connected to the second damper.

11. The fresh air device according to any one of claims 1 to 10, characterized in that: The fresh air inlet, the indoor air inlet, the indoor air outlet and the exhaust outlet are one of circular, rectangular and elliptical.

12. An air conditioner, characterized in that: It comprises a fresh air device as described in any one of claims 1-11.

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