Fresh air module and air conditioner

Abstract

The utility model provides a fresh air module and an air conditioner. The fresh air module comprises a base and a wind wheel. The base defines a wind wheel containing cavity, a first sub-air duct and a second sub-air duct which are located on the two sides of the wind wheel containing cavity in the first direction respectively, and a third sub-air duct located on one side of the wind wheel containing cavity in the second direction. Wherein the first direction is perpendicular to the second direction. The first sub-air duct is connected with the first air opening so as to communicate with the outdoor space. The second sub-air duct is connected with the second air opening so as to communicate with the indoor space. The third sub-air duct is connected with the third air opening so as to communicate with the indoor space. And the wind wheel is arranged in the wind wheel accommodating cavity and is at least configured to discharge air from the third sub-air duct under the condition that air enters from the first sub-air duct and the second sub-air duct. According to the fresh air module and the air conditioner, the problem that local heat flows fast due to direct air exchange between an indoor unit of an existing air conditioner and the outside can be solved, and the purpose of improving user experience is achieved.

Description

Technical Field

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

[0002] As urban air quality deteriorates (due to automobile exhaust, fume exhaust from restaurants, and industrial waste gas from surrounding factories), the air quality of the outdoor environment in cities has also deteriorated, resulting in more air pollutants entering the indoor environment when the traditional indoor air purification method of opening windows for ventilation is adopted, making the effect of opening windows for ventilation counterproductive. Especially in newly renovated houses, because it is necessary to open windows for ventilation for a long time to exhaust the formaldehyde volatilized by indoor decoration materials, more air pollutants will enter the indoor environment with the fresh air.

[0003] The prior art provides an indoor unit of an air conditioner with a fresh air function, in which a fan capable of forward and reverse rotation is arranged in the fresh air duct, so as to realize the purpose of supplying fresh air into the room and exhausting indoor air to the outside by switching the direction of the fan. However, in the case of a large temperature difference between indoor and outdoor, this ventilation method will cause a large amount of outdoor fresh air to enter the room, or a large amount of indoor heat exchange air to be exhausted from the room, causing a rapid loss of local heat in the indoor environment, and further resulting in poor temperature uniformity in the indoor space, which brings a poor experience to users. Utility Model Content

[0004] In view of the above problems, the present utility model is proposed to provide a fresh air module and an air conditioner that overcome the above problems or at least partially solve the above problems. It can solve the problem of rapid local heat flow rate caused by direct air exchange between the indoor unit of the existing air conditioner and the outdoors, thereby achieving the purpose of improving user experience.

[0005] Specifically, the utility model provides a fresh air module, comprising:

[0006] The base defines a wind wheel accommodating cavity, and a first sub-duct and a second sub-duct located at both sides of the wind wheel accommodating cavity in a first direction, and a third sub-duct located at one side of the wind wheel accommodating cavity in a second direction; wherein the first direction is perpendicular to the second direction; the first sub-duct is connected to the first air outlet to be configured to communicate with an outdoor space; the second sub-duct is connected to the second air outlet to be configured to communicate with an indoor space; the third sub-duct is connected to the third air outlet to be configured to communicate with the indoor space;

[0007] The wind wheel is arranged in the wind wheel accommodating chamber, and is at least configured to discharge air from the third sub-air duct when air is taken in from the first sub-air duct and the second sub-air duct.

[0008] Optionally, the wind wheel is a wind wheel of a reversible wind fan, and is further configured to, in at least one turning state, take in air from the first sub-duct and / or the second sub-duct; in another turning state, take in air from the second sub-duct and / or the third sub-duct, and discharge air from the first sub-duct.

[0009] Optionally, a filter component is provided in the first sub-air duct and / or the second sub-air duct to filter the air flowing through the first sub-air duct and / or the second sub-air duct.

[0010] Optionally, the wind wheel is a centrifugal wind wheel or a diagonal flow wind wheel.

[0011] Optionally, a damper mechanism is provided on the first air outlet and / or the second air outlet to control the opening and closing of the first air outlet and / or the second air outlet.

[0012] Optionally, the third sub-air duct includes:

[0013] A first air duct section is connected to the wind wheel accommodating chamber and is located at one side of the wind wheel accommodating chamber in the second direction;

[0014] a second air duct segment connected to an end of the first air duct segment away from the wind wheel accommodating chamber and located at one side of the first air duct segment in the first direction;

[0015] a third air duct segment, connected to one end of the first air duct segment away from the wind wheel accommodating chamber and located at the other side of the first air duct segment in the first direction; and

[0016] The first air duct segment, the second air duct segment and the third air duct segment define a T-shaped air duct structure.

[0017] Optionally, an air guide protrusion is formed on the side of the air duct wall away from the first air duct segment at the junction of the second air duct segment and the third air duct segment, protruding toward the first air duct segment, so as to encourage a part of the airflow discharged from the first air duct segment to enter the second air duct segment and another part to enter the third air duct segment.

[0018] Optionally, the second air duct segment and the third air duct segment both extend along the first direction; and,

[0019] The second air duct section and / or the third air duct section is formed at least at a position connected to the air guide protrusion, and is a diameter-changing section in which the cross-sectional area of ​​the air duct gradually increases in the direction away from the air guide protrusion in the first direction.

[0020] Optionally, the first direction is a front-to-back direction, and the second direction is a vertical direction; and,

[0021] The third sub-air duct is located on the upper side of the wind wheel accommodating chamber.

[0022] The utility model also provides an air conditioner, comprising:

[0023] The casing defines a heat exchange air duct to exchange heat with the air in the indoor space;

[0024] The fresh air module as described in any of the above items is connected to or integrally arranged on the casing, and is relatively independently arranged or connected to the heat exchange air duct.

[0025] In the fresh air module and air conditioner of the utility model, the fresh air module includes a first air outlet sub-duct, a second sub-duct and a third sub-duct. When the wind wheel is running, outdoor air can enter the first sub-duct from the first air outlet, and indoor air can enter the second sub-duct from the second air outlet. After the outdoor air and the indoor air are mixed in the third sub-duct, mixed air is obtained, and the mixed air is blown into the room from the third sub-duct. In the case of a large temperature difference between indoor and outdoor, the rapid loss of local heat in the indoor environment is prevented, which plays a role in energy saving, and improves the temperature uniformity of the indoor space, thereby improving the user experience. Moreover, only one wind wheel is needed to mix the indoor air with the outdoor air and enter the room, thereby reducing production costs.

[0026] Furthermore, when the air conditioner is cooling, the cold air flows upward after being blown out, and then flows downward after being blown out, thereby improving the air mixing effect of the air conditioner, improving the uniformity of the indoor temperature, preventing the cold air temperature from being too low to cause discomfort to the user, and thus improving the user experience.

[0027] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0029] Figure 1 is a schematic structural diagram of a fresh air module according to an embodiment of the utility model;

[0030] Figure 2 is a schematic structural diagram of an air conditioner according to an embodiment of the utility model;

[0031] Figure 3 is a schematic diagram of air flow in a fresh air mode according to an embodiment of the utility model;

[0032] Figure 4is a schematic diagram of air flow in a purification mode according to an embodiment of the utility model;

[0033] Figure 5 is a schematic diagram of air flow in fresh air and purification modes according to an embodiment of the utility model;

[0034] Figure 6 It is a schematic diagram of air flow in the sewage discharge mode according to an embodiment of the utility model. DETAILED DESCRIPTION

[0035] Refer to the following Figures 1 to 6 To describe the fresh air module and the air conditioner of the embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0036] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0037] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Figure 1 is a schematic structural diagram of a fresh air module according to an embodiment of the utility model, such as Figure 1 As shown, and refer to Figure 2 and Figure 6 The embodiment of the utility model provides a fresh air module 100, including a base 11 and a wind wheel. The base 11 defines a wind wheel accommodating chamber 12, and a first sub-duct 13 and a second sub-duct 14 respectively located on both sides of the wind wheel accommodating chamber 12 in the first direction, and a third sub-duct 15 located on one side of the wind wheel accommodating chamber 12 in the second direction. The first direction and the second direction are perpendicular. The first sub-duct 13 is connected to the first air outlet 17 to be configured to connect to the outdoor space. The second sub-duct 14 is connected to the second air outlet 18 to be configured to connect to the indoor space. The third sub-duct 15 is connected to the third air outlet 19 to be configured to connect to the indoor space. The wind wheel is arranged in the wind wheel accommodating chamber 12, and is at least configured to discharge air from the third sub-duct 15 when air is taken in from the first sub-duct 13 and the second sub-duct 14.

[0040] When the fresh air module 100 is working, the wind wheel rotates, so that outdoor air can enter the first sub-air duct 13 from the first air outlet 17, and indoor air can enter the second sub-air duct 14 from the second air outlet 18. The outdoor air and the indoor air are mixed in the third sub-air duct 15 to obtain mixed air, which is blown into the room from the third sub-air duct 15. In other words, the fresh air module 100 has the function of blowing out mixed air.

[0041] In this embodiment, since the fresh air module 100 includes the first sub-air duct 13, the second sub-air duct 14 and the third sub-air duct 15, under the action of the wind wheel, the fresh air module 100 can blow out a mixture of fresh air and indoor air. In the case of a large temperature difference between indoor and outdoor, it prevents the rapid loss of local heat in the indoor environment, plays a role in energy saving, and improves the temperature uniformity of the indoor space, thereby improving the user experience. Moreover, only one wind wheel is needed to mix the indoor air with the outdoor air and let it enter the room, reducing production costs.

[0042] In some embodiments of the utility model, the wind wheel is a wind wheel of a reversible wind turbine, and is further configured to at least in one turning state, take in air from the first sub-air duct 13 and discharge air from the third sub-air duct 15. In another turning state, take in air from the second sub-air duct 14 or the third sub-air duct 15 and discharge air from the first sub-air duct 13.

[0043] In this embodiment, the wind wheel can rotate in the opposite direction to change the direction of air flow. Figure 3 As shown, the wind wheel rotates to allow outdoor air to enter the room from the first sub-duct 13. When exhausting the room, the wind wheel changes its rotation direction so that the indoor air is discharged from the second sub-duct 14 or the third sub-duct 15. This arrangement allows fresh air to enter the room and turbid air in the room to be discharged from the room, making the indoor air fresher, preventing turbid air in the room from affecting the human body, and improving the user experience.

[0044] In some embodiments of the present invention, the wind wheel is a wind wheel of a reversible wind turbine, and is further configured to be in at least one steering state, such as Figure 3 As shown, the air enters from the first sub-air duct 13 and exits from the third sub-air duct 15. In another turning state, as shown in FIG. Figure 6 As shown, air enters from the second sub-air duct 14 and the third sub-air duct 15 , and exits from the first sub-air duct 13 .

[0045] In this embodiment, the indoor air flows to the outside from the second sub-duct 14 and the third sub-duct 15 at the same time, which increases the exhaust speed of the indoor air, avoids incomplete exhaust of the indoor air, and increases the exhaust rate of the indoor air.

[0046] In some embodiments of the present invention, the wind wheel is a wind wheel of a reversible wind turbine, and is further configured to be in at least one steering state, such as Figure 4 As shown, the air enters from the second sub-duct 14 and exits from the third sub-duct 15. In another turning state, the air enters from the second sub-duct 14 or the third sub-duct 15 and exits from the first sub-duct 13.

[0047] In this embodiment, when heat exchange is performed indoors, indoor air enters the fresh air module 100 from the second air duct and is blown into the room through the third air duct to mix with the heat exchange air blown into the room, thereby improving the air mixing effect and preventing discomfort caused by a large temperature difference between the heat exchange air and the indoor temperature.

[0048] In some embodiments of the present invention, the wind wheel is a wind wheel of a reversible wind turbine, and is further configured to be in at least one steering state, such as Figure 4 As shown, the air enters from the second sub-air duct 14 and exits from the third sub-air duct 15. In another turning state, as shown in FIG. Figure 6As shown, air enters from the second sub-air duct 14 and the third sub-air duct 15 , and exits from the first sub-air duct 13 .

[0049] In some embodiments of the present invention, the wind wheel is a wind wheel of a reversible wind turbine, and is further configured to be in at least one steering state, such as Figure 5 As shown, air enters from the first sub-duct 13 and the second sub-duct 14, and air is discharged from the third sub-duct 15. In another turning state, air enters from the second sub-duct 14 or the third sub-duct 15, and air is discharged from the first sub-duct 13.

[0050] In this embodiment, outdoor air enters the fresh air module 100 through the first sub-air duct 13, and indoor air enters the fresh air module 100 through the second sub-air duct 14. The indoor air and outdoor air are mixed in the fresh air module and then enter the room. When the temperature difference between indoor and outdoor is large, the rapid loss of local heat in the indoor environment is prevented, the temperature uniformity of the indoor space is improved, and the user experience is improved.

[0051] In some embodiments of the present invention, the wind wheel is a wind wheel of a reversible wind turbine, and is further configured to be in at least one steering state, such as Figure 5 As shown, the air enters from the first sub-air duct 13 and the second sub-air duct 14, and the air exits from the third sub-air duct 15. In another turning state, as shown in FIG. Figure 6 As shown, air enters from the second sub-air duct 14 and the third sub-air duct 15 , and exits from the first sub-air duct 13 .

[0052] In some embodiments of the present invention, a filter assembly 16 is disposed in the first sub-air duct 13 to filter the air flowing through the first sub-air duct 13 .

[0053] In this embodiment, a filter assembly 16 is provided in the first sub-air duct 13. After the outdoor air enters the first sub-air duct 13, it is filtered by the filter assembly 16 and then blown into the room, thereby preventing pollutants carried in the outdoor air from entering the room and affecting the human body, thereby improving the user experience.

[0054] In some embodiments of the present invention, a filter assembly 16 is disposed in the second sub-air duct 14 to filter the air flowing through the second sub-air duct 14 .

[0055] In this embodiment, a filter component 16 is provided in the second sub-air duct 14. After the indoor air enters the second sub-air duct 14, it is filtered by the filter component 16 and then blown back into the room to purify the indoor air, thereby preventing the growth of bacteria caused by indoor poor ventilation from affecting the health of the user and improving the user's experience.

[0056] In some embodiments of the present invention, Figure 1 and Figure 2As shown, a filter assembly 16 is disposed in the first sub-air duct 13 and the second sub-air duct 14 to filter the air flowing through the first sub-air duct 13 and the second sub-air duct 14 .

[0057] In this embodiment, filter components 16 are installed in the first sub-air duct 13 and the second sub-air duct 14 to filter and purify outdoor air and indoor air, thereby improving the quality of indoor air and thus improving the user experience.

[0058] In some embodiments of the present invention, Figures 3 to 6 As shown, the operation modes of the fresh air module 100 include fresh air mode, purification mode, fresh air and purification mode and sewage discharge mode. The direction of the arrow in the figure is the direction of air flow.

[0059] like Figure 3 As shown, in the fresh air mode, the damper mechanism of the first air outlet 17 is opened, and the damper mechanism of the second air outlet 18 is closed, so that the outdoor air passes through the first air outlet 17, is filtered and purified by the filter assembly 16, and then enters the first sub-air duct 13. The wind wheel rotates, and the filtered and purified outdoor air is sent to the third sub-air duct 15, and is blown into the room through the third air outlet 19. Fresh air enters the room, improving the indoor air quality and the user experience.

[0060] like Figure 4 As shown, when the temperature difference between indoor and outdoor is large, the outdoor air enters the room and affects the room temperature, but the turbid air in the room needs to be filtered, the indoor air needs to be filtered and purified, and the fresh air module 100 operates in the purification mode. The damper mechanism of the second air outlet 18 is opened, and the damper mechanism of the first air outlet 17 is closed, so that the indoor air passes through the second air outlet 18, and enters the second sub-air duct 14 after being filtered and purified by the filter assembly 16. The wind wheel rotates, and the filtered and purified indoor air is sent to the third sub-air duct 15, and blown into the room through the third air outlet 19, completing the purification of the indoor air, improving the indoor air quality, and improving the user experience.

[0061] like Figure 5 As shown, when the temperature difference between indoor and outdoor is not large and the indoor air needs to be filtered at the same time, the fresh air module 100 operates in the fresh air and purification mode. The damper mechanism of the first air outlet 17 and the damper mechanism of the second air outlet 18 are opened to allow the outdoor air to pass through the first air outlet 17 and enter the first sub-air duct 13 after being filtered and purified by the filter assembly 16. The indoor air passes through the second air outlet 18 and enters the second sub-air duct 14 after being filtered and purified by the filter assembly 16. The wind wheel rotates to send the filtered and purified outdoor air and indoor air into the third sub-air duct 15, and blow them into the room through the third air outlet 19, thereby improving the indoor air quality and the user experience.

[0062] like Figure 6As shown, when the indoor air is polluted and needs to be discharged, the fresh air module 100 operates in the sewage discharge mode. The damper mechanism of the first air outlet 17 and the damper mechanism of the second air outlet 18 are opened to reverse the wind wheel. The indoor air enters the second sub-air duct 14 and the third sub-air duct 15 through the second air outlet 18 and the third air outlet 19, and is discharged from the room through the first sub-air duct 13 under the negative pressure of the wind wheel. Purification makes the indoor environment, improves the indoor air quality, and enhances the user experience.

[0063] In some embodiments of the utility model, the wind wheel is a centrifugal wind wheel. The centrifugal wind wheel has a better ventilation effect, has a better air extraction and air supply effect, and runs smoothly and efficiently.

[0064] In some embodiments of the present invention, the wind wheel is a diagonal flow wind wheel.

[0065] In some embodiments of the present invention, a damper mechanism is provided on the first air outlet 17 to control the opening and closing of the first air outlet 17 .

[0066] In this embodiment, a damper mechanism is provided on the first air outlet 17. When the damper mechanism is opened, outdoor air can enter the room through the first air outlet 17, or indoor air can be discharged from the room through the first air outlet 17.

[0067] In some embodiments of the present invention, a damper mechanism is provided on the second air outlet 18 to control the opening and closing of the second air outlet 18 .

[0068] In this embodiment, a damper mechanism is provided on the second air outlet 18. When the damper mechanism is opened, the indoor air can circulate through the second air outlet 18, filter and purify the indoor air, improve the quality of the indoor air, and enhance the user experience.

[0069] In some embodiments of the present invention, a damper mechanism is provided on the first air outlet 17 and the second air outlet 18 to control the opening and closing of the first air outlet 17 and the second air outlet 18 .

[0070] In this embodiment, damper mechanisms are provided on both the first air outlet 17 and the second air outlet 18 to control the first air outlet 17 and the second air outlet 18 to be used separately or simultaneously, thereby increasing the diversity of air output and improving the use effect of users.

[0071] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the third sub-air duct 15 includes a first air duct segment 151, a second air duct segment 152 and a third air duct segment 153. The first air duct segment 151 is connected to the wind rotor accommodating chamber 12 and is located at one side of the wind rotor accommodating chamber 12 in the second direction. The second air duct segment 152 is connected to one end of the first air duct segment 151 away from the wind rotor accommodating chamber 12 and is located at one side of the first air duct segment 151 in the first direction. The third air duct segment 153 is connected to one end of the first air duct segment 151 away from the wind rotor accommodating chamber 12 and is located at the other side of the first air duct segment 151 in the first direction. And, the first air duct segment 151, the second air duct segment 152 and the third air duct segment 153 define a T-shaped air duct structure.

[0072] In this embodiment, the third sub-air duct 15 includes a first air duct section 151, a second air duct section 152 and a third air duct section 153, and the second air duct section 152 and the third air duct section 153 are located on both sides of the first air duct section 151. When supplying air to the room, the second air duct section 152 and the third air duct section 153 can be used to supply air to the room, that is, there are two third air outlets 19, and the air supply directions of the two third air outlets 19 are different, thereby improving the effect of fresh air entering the room or indoor air purification. When exhausting air to the outside, the exhaust effect is improved.

[0073] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, an air guide protrusion 21 is formed on the side of the air duct wall away from the first air duct section 151 at the junction of the second air duct section 152 and the third air duct section 153, and protrudes toward the first air duct section 151, so as to cause a part of the airflow discharged from the first air duct section 151 to enter the second air duct section 152 and the other part to enter the third air duct section 153.

[0074] In this embodiment, the air enters the first air duct section 151 and flows upward. After passing through the air guide protrusion 21, the air flows along the wall surfaces of the second air duct section 152 and the third air duct section 153 toward the third air outlet 19, making it easier for the fresh air to flow to the air ducts on both sides.

[0075] In some embodiments of the present invention, the second air duct section 152 and the third air duct section 153 both extend in the first direction. In addition, the second air duct section 152 is formed at least at a position where it connects with the air guide protrusion 21, and the air duct cross-sectional area gradually increases in the first direction away from the air guide protrusion 21.

[0076] In some embodiments of the present invention, the second air duct section 152 and the third air duct section 153 both extend in the first direction. In addition, the third air duct section 153 is formed at least at a position connected to the air guide protrusion 21, and the air duct cross-sectional area gradually increases from the first direction in a direction away from the air guide protrusion 21.

[0077] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the second air duct section 152 and the third air duct section 153 both extend in the first direction. In addition, the second air duct section 152 and the third air duct section 153 are formed at least at the position where they are connected to the wind guide protrusion 21, and the cross-sectional area of ​​the air duct gradually increases from the first direction in the direction away from the wind guide protrusion 21.

[0078] In this embodiment, the second air duct section 152 and the third air duct section 153 are connected together, and the cross-sectional area of ​​the connected air duct gradually decreases from both ends to the middle, which helps to increase the wind pressure at the inlet of the first air duct section 151. Moreover, the gradually widened air duct is conducive to the air being blown out directly along the pipe wall, thereby preventing the outside air from blocking the airflow and ensuring the stable output of the wind wheel.

[0079] In some embodiments of the present invention, the first direction is the front-to-back direction, and the second direction is the vertical direction. In addition, the third sub-air duct 15 is located on the upper side of the wind wheel accommodating chamber 12 .

[0080] The utility model also provides an air conditioner 200, such as Figure 2 As shown, it includes a housing and a fresh air module 100. The housing defines a heat exchange air duct to exchange heat with the air in the indoor space. The fresh air module 100 is any of the fresh air modules 100 in the above embodiments, and the fresh air module 100 is connected or integrally arranged on the housing, and the fresh air module 100 is relatively independently arranged or connected to the heat exchange air duct.

[0081] In this embodiment, the heat exchange air duct is located above the non-heat exchange air, and the heat exchange air duct is connected to the heat exchange air outlet 22. The heat exchange air is blown into the room from the heat exchange air outlet 22 through the heat exchange air duct, and the non-heat exchange air is blown into the room through the third air outlet 19. When the air conditioner 200 is cooling, the cold air flows upward after being blown out, and the cold air flows downward after being blown out, which improves the air mixing effect of the air conditioner 200, improves the uniformity of the indoor temperature, prevents the cold air temperature from being too low to cause discomfort to the user, and thus improves the user experience.

[0082] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A fresh air module, characterized in that: include: The base defines a wind wheel accommodating cavity, and a first sub-duct and a second sub-duct located at both sides of the wind wheel accommodating cavity in a first direction, and a third sub-duct located at one side of the wind wheel accommodating cavity in a second direction; wherein the first direction is perpendicular to the second direction; the first sub-duct is connected to the first air outlet to be configured to communicate with an outdoor space; the second sub-duct is connected to the second air outlet to be configured to communicate with an indoor space; the third sub-duct is connected to the third air outlet to be configured to communicate with the indoor space; The wind wheel is arranged in the wind wheel accommodating chamber, and is at least configured to discharge air from the third sub-air duct when air is taken in from the first sub-air duct and the second sub-air duct.

2. The fresh air module according to claim 1, characterized in that: The wind wheel is a wind wheel of a reversible wind turbine, and is further configured to at least take in air from the first sub-duct and / or the second sub-duct in one turning state; and take in air from the second sub-duct and / or the third sub-duct and discharge air from the first sub-duct in another turning state.

3. The fresh air module according to claim 1, characterized in that: A filter assembly is disposed in the first sub-air duct and / or the second sub-air duct to filter the air flowing through the first sub-air duct and / or the second sub-air duct.

4. The fresh air module according to claim 1, characterized in that: The wind wheel is a centrifugal wind wheel or a diagonal flow wind wheel.

5. The fresh air module according to claim 1, characterized in that: The first air outlet and / or the second air outlet is provided with a damper mechanism for controlling the opening and closing of the first air outlet and / or the second air outlet.

6. The fresh air module according to claim 1, characterized in that: The third sub-air duct comprises: A first air duct section is connected to the wind wheel accommodating chamber and is located at one side of the wind wheel accommodating chamber in the second direction; a second air duct segment connected to an end of the first air duct segment away from the wind wheel accommodating chamber and located at one side of the first air duct segment in the first direction; a third air duct segment, connected to one end of the first air duct segment away from the wind wheel accommodating chamber and located at the other side of the first air duct segment in the first direction; and The first air duct segment, the second air duct segment and the third air duct segment define a T-shaped air duct structure.

7. The fresh air module according to claim 6, characterized in that: An air guide protrusion protruding toward the first air duct section is formed on the side of the air duct wall away from the first air duct section at the junction of the second air duct section and the third air duct section, so as to encourage a part of the airflow discharged from the first air duct section to enter the second air duct section and another part to enter the third air duct section.

8. The fresh air module according to claim 7, characterized in that: The second air duct segment and the third air duct segment both extend along the first direction; and, The second air duct section and / or the third air duct section is formed at least at a position connected to the air guide protrusion, and is a diameter-changing section in which the cross-sectional area of ​​the air duct gradually increases in the direction away from the air guide protrusion in the first direction.

9. The fresh air module according to claim 1, characterized in that: The first direction is a front-to-back direction, the second direction is a vertical direction; and, The third sub-air duct is located on the upper side of the wind wheel accommodating chamber.

10. An air conditioner, characterized in that: include: The casing defines a heat exchange air duct to exchange heat with the air in the indoor space; The fresh air module as described in any one of claims 1 to 9 is connected to or integrally arranged on the casing, and is relatively independently arranged or connected to the heat exchange air duct.

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