Fresh air module, air conditioner cabinet and air conditioner

Abstract

The application relates to the technical field of indoor fresh air replacement, and discloses a fresh air module, which comprises a module shell, a first sub-air cavity and a second sub-air cavity which are in communication with the outside, the first sub-air cavity can be separated from or communicated with the second sub-air cavity, a fan assembly which comprises a first fan volute and a second fan volute, the first fan volute comprises a first fan air inlet which is in communication with the second sub-air cavity and a first fan air outlet which is in communication with the inside, the second fan volute comprises a second fan air inlet which is in communication with the inside and a second fan air outlet which is in communication with the first sub-air cavity, the second sub-air cavity or the inside, in a bidirectional air replacement mode, outdoor fresh air is sent to the inside through the second sub-air cavity, the first fan air inlet and the first fan air outlet, and indoor air is discharged to the outside through the second fan air inlet, the second fan air outlet and the first sub-air cavity. The application further discloses an air conditioner cabinet and an air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of indoor fresh air exchange, for example to a fresh air module, a cabinet air conditioner and an air conditioner. BACKGROUND

[0002] Gases emitted by indoor decoration materials, furniture, even ornaments and food, etc. can cause poor indoor air quality, affecting people's life and health, and air purification is gradually valued. Therefore, more and more air conditioners are equipped with fresh air modules to introduce outdoor fresh air to improve the indoor air quality. However, for an indoor space with good airtightness, when introducing outdoor fresh air, the indoor air pressure gradually increases, and the indoor air can only flow to the outdoor through the gaps of doors and windows, which is more likely to cause imbalance between indoor and outdoor air pressure, affecting the efficiency of introducing fresh air.

[0003] The related technology provides a fresh air module with outdoor fresh air and indoor exhaust air dual functions. The fresh air module periodically switches to introduce fresh air to the indoor side in one cycle and exhaust air to the outdoor side in another cycle, thereby realizing a "breathing" air purification mode.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related technology:

[0005] The fresh air module design in the related technology can only alternately perform fresh air and exhaust air functions, and cannot simultaneously perform fresh air and exhaust air functions, so the actual air purification efficiency is low.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a brief overview is given below. The overview is not a comprehensive review of the application, nor is it intended to determine key / important elements or delineate the scope of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a fresh air module, a cabinet air conditioner and an air conditioner, which can simultaneously introduce outdoor fresh air and exhaust indoor air, thereby improving the air purification efficiency.

[0009] In some embodiments, the fresh air module comprises: a module housing configured with a wind cavity, the wind cavity comprising a first sub-wind cavity and a second sub-wind cavity respectively communicating with the outdoor, the first sub-wind cavity being able to be separated from or communicated with the second sub-wind cavity; a fan assembly comprising a first fan volute and a second fan volute; the first fan volute comprising a first fan air inlet able to be communicated with the second sub-wind cavity, and a first fan air outlet communicated with the indoor; the second fan volute comprising a second fan air inlet communicated with the indoor, and a second fan air outlet able to be communicated with the first sub-wind cavity, the second sub-wind cavity or the indoor; wherein the fresh air module comprises at least a bidirectional air exchange mode; in the bidirectional air exchange mode, the outdoor fresh air is sequentially delivered to the indoor through the second sub-wind cavity, the first fan air inlet and the first fan air outlet; the second fan air outlet is communicated with the first sub-wind cavity, the first sub-wind cavity is separated from the second sub-wind cavity, and the indoor air is sequentially discharged to the outdoor through the second fan air inlet, the second fan air outlet and the first sub-wind cavity.

[0010] In some embodiments, the fresh air module further comprises a full fresh air mode; in the full fresh air mode, the second fan air outlet is communicated with the indoor, the first sub-wind cavity is communicated with the second sub-wind cavity, the fresh air enters the first fan air inlet through the first sub-wind cavity and the second sub-wind cavity, and then is sequentially delivered to the indoor through the first fan volute and the first fan air outlet; the indoor air flows back to the indoor through the second fan air inlet, the second fan volute and the second fan air outlet in sequence.

[0011] In some embodiments, the fresh air module further comprises a mixed air mode; in the mixed air mode, the second fan air outlet is communicated with the second sub-wind cavity, and the first sub-wind cavity is communicated with the second sub-wind cavity, wherein a part of the fresh air enters the second sub-wind cavity through the first sub-wind cavity, and another part of the fresh air directly enters the second sub-wind cavity; the indoor air enters the second sub-wind cavity through the second fan air inlet and the second fan air outlet in sequence; after the fresh air and the indoor air are mixed in the second sub-wind cavity, they flow to the indoor through the first fan air inlet and the first fan air outlet in sequence.

[0012] In some embodiments, the module housing comprises: a wind box arranged at one side of the fan assembly, and the internal space of the wind box is the wind cavity; a wind cover arranged in the wind cavity to divide the wind cavity into the first sub-wind cavity inside the wind cover and the second sub-wind cavity outside the wind cover; the wind cover comprises a movable plate body, and the movable plate body is able to move to separate or communicate the first sub-wind cavity and the second sub-wind cavity.

[0013] In some embodiments, the air bellow includes a first air bellow wall away from the fan assembly, the first air bellow wall is configured with a first outdoor communication port corresponding to the first sub-air cavity, and a second outdoor communication port corresponding to the second sub-air cavity; the fresh air module further includes: a fresh air pipe, an internal partition plate extending in an axial direction is arranged in the fresh air pipe, the internal partition plate divides an internal space of the fresh air pipe into a first pipe internal air channel and a second pipe internal air channel, the first pipe internal air channel is in communication with the first outdoor communication port, and the second pipe internal air channel is in communication with the second outdoor communication port.

[0014] In some embodiments, the air bellow further includes a first side plate arranged vertically, the first air bellow wall is configured with a through hole; a first end of the first side plate is connected perpendicularly to the first air bellow wall, and the first side plate passes through the through hole to divide the through hole into the first outdoor communication port and the second outdoor communication port; wherein a second end of the first side plate is rotatably connected to the pivot shaft of the movable plate body, and the movable plate body is capable of rotating around the pivot shaft to separate or communicate the first sub-air cavity and the second sub-air cavity.

[0015] In some embodiments, the module shell further includes: a lower shell including a connecting portion, a first air channel portion, and a second air channel portion; the connecting portion is in communication with the second fan air outlet, and the connecting portion is configured with a first indoor air outlet, a first communication hole, and a second communication hole; a first end of the first air channel portion is in communication with the first communication hole, and a second end is in communication with the first sub-air cavity; a first end of the second air channel portion is in communication with the second communication hole, and a second end is in communication with the second sub-air cavity; and a wind block assembly arranged in the connecting portion, capable of rotating to a first position to simultaneously block the second communication hole and the first indoor air outlet, capable of rotating to a second position to block the first indoor air outlet and avoid the second communication hole, and capable of rotating to a third position to block the second communication hole and avoid the first indoor air outlet.

[0016] In some embodiments, the fan assembly further includes: a fan partition plate, the first fan volute and the second fan volute are arranged on opposite sides of the fan partition plate; a first fan wheel arranged in the first fan volute; a second fan wheel arranged in the second fan volute; and a double-shaft motor including a first output shaft and a second output shaft, the first output shaft extends into the first fan volute and is fixedly connected with the first fan wheel, and the second output shaft extends into the second fan volute and is fixedly connected with the second fan wheel.

[0017] In some embodiments, the air conditioner cabinet includes: a cabinet shell, a lower part of the cabinet shell is provided with a containing space; and the fresh air module described above is arranged in the containing space.

[0018] In some embodiments, the air conditioner includes the air conditioner cabinet described above.

[0019] The fresh air module, the air conditioner cabinet, and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The fresh air module in the embodiment of the present disclosure can realize the bidirectional air exchange mode by making the second fan outlet communicate with the first sub-air cavity of the module shell, separating the first sub-air cavity and the second sub-air cavity, and sequentially conveying the outdoor fresh air to the indoor through the second sub-air cavity, the first fan inlet and the first fan outlet; and sequentially conveying the indoor air to the outdoor through the second fan inlet, the second fan outlet and the first sub-air cavity. In this way, the fresh air module can introduce outdoor fresh air and exhaust indoor air at the same time, which is beneficial to improve the air purification efficiency.

[0021] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a fresh air module provided by the embodiment of the present disclosure;

[0024] Figure 2A is a partial structural schematic diagram of a fresh air module provided by the embodiment of the present disclosure;

[0025] Figure 2B is Figure 2A a structural schematic diagram in another angle;

[0026] Figure 3A is a structural schematic diagram of a fan assembly provided by the embodiment of the present disclosure;

[0027] Figure 3B is Figure 3A a structural schematic diagram in another angle;

[0028] Figure 4 is a structural schematic diagram of another fresh air module provided by the embodiment of the present disclosure;

[0029] Figure 5 is a structural schematic diagram of a fresh air duct provided by the embodiment of the present disclosure;

[0030] Figure 6 is a structural schematic diagram of a lower shell provided by the embodiment of the present disclosure;

[0031] Figure 7 is a structural schematic diagram of a rotating member provided by the embodiment of the present disclosure;

[0032] Figure 8 is a schematic diagram of the rotating member in different states in a wind blocking assembly provided by the embodiment of the present disclosure;

[0033] Figure 9 is a structural schematic diagram of an air conditioner cabinet machine provided by an embodiment of the present disclosure;

[0034] Figure 10 is a structural schematic diagram of another fresh air module provided by an embodiment of the present disclosure;

[0035] Figure 11 is a partial structural schematic diagram of a fresh air module provided by an embodiment of the present disclosure.

[0036] Reference signs:

[0037] 1, module shell; 101, first sub-wind cavity; 102, second sub-wind cavity; 103, wind box; 1031, first wind box wall; 1032, through hole; 1033, wind box bottom wall; 1034, first bottom wall opening; 1035, second bottom wall opening; 10321, first outdoor communication port; 10322, second outdoor communication port; 104, wind cover; 1041, movable plate body; 1042, first side plate; 2, fan assembly; 201, first fan volute; 2011, first fan air inlet; 2012, first fan air outlet; 202, second fan volute; 2021, second fan air inlet; 2022, second fan air outlet; 3, fresh air pipe; 301, partition plate; 4, lower shell; 401, connecting portion; 4011, first indoor air outlet; 402, first air duct portion; 403, second air duct portion; 5, wind blocking assembly; 501, fixed baffle; 502, rotating member; 5021, rotating shaft; 5022, end plate; 5023, arc-shaped side plate; 6, cabinet machine shell; 7, first air guide pipe member; 8, second air guide pipe member. DETAILED DESCRIPTION

[0038] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0039] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances in order to describe the embodiments of the present disclosure. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0040] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0041] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0042] Unless otherwise specified, the term "a plurality of" means two or more.

[0043] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0044] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0045] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0046] In a first aspect, the present disclosure provides a fresh air module.

[0047] In combination Figures 1 to 4 As shown in the drawings, the fresh air module provided by the embodiments of the present disclosure includes a module shell 1 and a fan assembly 2.

[0048] The module shell 1 is configured with a wind cavity, and the wind cavity includes a first sub-wind cavity 101 and a second sub-wind cavity 102 which are respectively communicated with the outdoor, and the first sub-wind cavity 101 can be separated or communicated with the second sub-wind cavity 102.

[0049] The fan assembly 2 comprises a first fan volute 201 and a second fan volute 202. The first fan volute 201 comprises a first fan air inlet 2011 capable of communicating with the second sub-air cavity 102, and a first fan air outlet 2012 communicating with the indoor. The second fan volute 202 comprises a second fan air inlet 2021 communicating with the indoor, and a second fan air outlet 2022 capable of communicating with the first sub-air cavity 101, the second sub-air cavity 102 or the indoor.

[0050] In the bidirectional air exchange mode, the outdoor fresh air is sequentially delivered to the indoor through the second sub-air cavity 102, the first fan air inlet 2011 and the first fan air outlet 2012. The second fan air outlet 2022 communicates with the first sub-air cavity 101, the first sub-air cavity 101 is separated from the second sub-air cavity 102, and the indoor air is sequentially discharged to the outdoor through the second fan air inlet 2021, the second fan air outlet 2022 and the first sub-air cavity 101.

[0051] In the bidirectional air exchange mode, the outdoor fresh air is sequentially delivered to the indoor through the second sub-air cavity 102, the first fan air inlet 2011 and the first fan air outlet 2012. The second fan air outlet 2022 communicates with the first sub-air cavity 101, the first sub-air cavity 101 is separated from the second sub-air cavity 102, and the indoor air is sequentially discharged to the outdoor through the second fan air inlet 2021, the second fan air outlet 2022 and the first sub-air cavity 101.

[0052] It can be understood that the fan assembly 2 comprises a first fan and a second fan, the first fan comprises the first fan volute 201, and the second fan comprises the second fan volute 202.

[0053] Optionally, in combination with Figure 1 As shown, the second fan air inlet 2021 is upwardly arranged, and the second fan air outlet 2022 is downwardly arranged. In this way, the arrangement of the fresh air module is facilitated, and the bidirectional fresh air exchange is realized in cooperation with other structures.

[0054] Optionally, the size of the first fan volute 201 is greater than the size of the second fan volute 202. The volume ratio of the first sub-air cavity 101 to the second sub-air cavity 102 is in the range of 1:1 to 1:2. For example, the volume ratio of the first sub-air cavity 101 to the second sub-air cavity 102 is 1:1, 1:1.3, 1:1.5, 1:1.6, 1:1.8 or 1:2, etc.

[0055] In this way, the amount of fresh air introduced by the fresh air module is slightly greater than the exhaust air, so that the indoor space can be kept at a slight positive pressure. Since most indoor spaces are not completely sealed, the slight positive pressure can prevent unfiltered outdoor air from entering the indoor space through gaps in doors and windows.

[0056] Optionally, a first filter element is arranged at the first fan air inlet 2011. The first filter element is used to filter the gas entering the first fan air inlet 2011, reduce the content of particulate matter in the fresh air, and improve the comfort of the fresh air. The first filter element includes a HEPA filter.

[0057] In some embodiments, the fresh air module further includes a full fresh air mode. In the full fresh air mode, the second fan air outlet 2022 is in communication with the indoor space, and the first sub-air cavity 101 is in communication with the second sub-air cavity 102. Fresh air enters the first fan air inlet 2011 through the first sub-air cavity 101 and the second sub-air cavity 102, and is then sequentially delivered to the indoor space through the first fan volute 201 and the first fan air outlet 2012. The indoor air flows through the second fan air inlet 2021, the second fan volute 202, and the second fan air outlet 2022 in sequence and returns to the indoor space.

[0058] In this way, by switching the communication state of the second fan air outlet 2022 and the communication state of the first sub-air cavity 101 and the second sub-air cavity 102, different air path communication states corresponding to the full fresh air mode and the bidirectional air exchange mode can be formed, which facilitates switching the air inlet mode of the fresh air module. In addition, this can adjust the air inlet mode of the fresh air based on the air quality in the indoor space, which is conducive to quickly improving the air quality in the indoor space while reducing the external discharge of heat / cold and saving energy.

[0059] For example, when the content of particulate matter in the indoor space exceeds the standard, the full fresh air mode is turned on, and the first fan is used to introduce outdoor fresh air to continuously improve the air quality in the indoor space and ensure the comfort of the user. At the same time, the second fan is used to suck indoor air, the second fan filter is used to remove particulate matter in the indoor air, and then the filtered indoor air is sent back to the indoor space. Using the second fan to filter the indoor air not only reduces the content of particulate matter in the indoor air and solves the problem of excessive content of particulate matter in the indoor space, but also reduces the external discharge of heat / cold and improves the energy efficiency of the air conditioner.

[0060] On the contrary, if the second fan is used to discharge indoor air, although it can solve the problem of excessive content of particulate matter in the indoor space, the external discharge of relatively hot / cold indoor air will result in the loss of a part of heat / cold, leading to an increase in the energy consumption of the air conditioner.

[0061] In some embodiments, the fresh air module further comprises a mixed air mode. In the mixed air mode, the second fan air outlet 2022 is in communication with the second sub-air cavity 102, and the first sub-air cavity 101 is in communication with the second sub-air cavity 102, wherein a part of the fresh air enters the second sub-air cavity 102 through the first sub-air cavity 101, and another part of the fresh air directly enters the second sub-air cavity 102; the indoor air enters the second sub-air cavity 102 in sequence through the second fan air inlet 2021, the second fan air outlet 2022, and the first sub-air cavity 101; after the fresh air and the indoor air are mixed in the second sub-air cavity 102, they flow to the indoor environment in sequence through the first fan air inlet and the first fan air outlet.

[0062] In this way, by switching the communication state of the second fan air outlet 2022 and the communication state of the first sub-air cavity 101 and the second sub-air cavity 102, different air path communication states corresponding to the mixed air mode, the full fresh air mode, and the bidirectional air exchange mode can be formed, facilitating the switching of the air inlet mode of the fresh air module. In addition, in this way, the air inlet mode of the fresh air can be adjusted based on the air quality in the indoor environment, which is conducive to quickly improving the indoor air quality while reducing the external discharge of heat / cold and saving energy.

[0063] In some embodiments, in combination with Figure 2A and Figure 11 As shown in the figures, the module housing 1 comprises an air box 103 and an air cover 104. The air box 103 is arranged on one side of the fan assembly 2, and the internal space thereof is an air cavity. The air cover 104 is arranged in the air cavity to divide the air cavity into a first sub-air cavity 101 located inside the air cover and a second sub-air cavity 102 located outside the air cover. The air cover 104 comprises a movable plate body 1041, which can be moved to separate or communicate the first sub-air cavity 101 and the second sub-air cavity 102.

[0064] In this way, by rotating the movable plate body 1041 of the air cover 104, the first sub-air cavity 101 and the second sub-air cavity 102 can be separated or communicated, which is relatively convenient. At the same time, it is convenient to cooperate with the remaining structure of the fresh air module to form different air path communication states corresponding to the mixed air mode, the full fresh air mode, and the bidirectional air exchange mode. In addition, in the bidirectional fresh air mode, the first sub-air cavity 101 circulates indoor air, and the second sub-air cavity 102 circulates outdoor fresh air. The air cover 104 is arranged in the second sub-air cavity 102, which is conducive to heat exchange between the outdoor fresh air and the indoor air through the wall of the air cover 104, recovers heat from the indoor air, reduces the temperature difference between the outdoor fresh air and the indoor air, and improves the comfort of the fresh air.

[0065] For the air box 103, the air box 103 comprises a first air box wall 1031 away from the fan assembly, and the first air box wall 1031 is constructed with a through hole 1032.

[0066] The wind box further comprises a wind box bottom wall 1033, which is configured with a first bottom wall opening 1034 and a second bottom wall opening 1035. The wind cover 104 is sleeved on the first bottom wall opening 1034, so that the first bottom wall opening 1034 is communicated with the first sub-wind cavity 101. The second bottom wall opening 1035 is communicated with the second sub-wind cavity 102.

[0067] For the wind cover 104, in combination with Figure 11 As shown, the wind cover 104 comprises a movable plate body 1041, a first side plate 1042, a second side plate and an upper end plate. The first side plate 1042, the second side plate and the movable plate body 1041 are vertically arranged, and the upper end plate is horizontally arranged. The first side plate 1042 and the second side plate are oppositely arranged and parallel to each other. The bottom ends of the first side plate 1042 and the second side plate are connected with the wind box bottom wall 1033, the side ends away from the fan assembly 2 are connected with the first wind box wall 1031, the top ends are connected with the two side ends of the upper end plate respectively, and the side ends close to the fan assembly 2 are connected with the movable plate body 1041. The various plate bodies of the wind cover and the wind box bottom wall 1033 and the first wind box wall 1031 are enclosed to define the first sub-wind cavity 101.

[0068] Optionally, the wind cover 104 further comprises a vertically arranged first side plate 1042, and the first wind box wall 1031 is configured with a through hole 1032. The first end of the first side plate 1042 is connected with the first wind box wall 1031 perpendicularly, and the first side plate 1042 passes through the through hole 1032 to divide the through hole 1032 into a first outdoor communication port 10321 located in the first sub-wind cavity 101 and a second outdoor communication port 10322 located in the second sub-wind cavity 102. Among them, the second end of the first side plate 1042 is rotatably connected with the pivot shaft of the movable plate body 1041, and the movable plate body 1041 can rotate around the pivot shaft to separate or communicate the first sub-wind cavity 101 and the second sub-wind cavity 102.

[0069] By designing the position of the first side plate 1042, the through hole 1032 of the first wind box wall 1031 is divided into the first outdoor communication port 10321 and the second outdoor communication port 10322, so that the first sub-wind cavity 101 and the second sub-wind cavity 102 are respectively communicated with the outdoor, and the structure is simplified. At the same time, the first outdoor communication port 10321 and the second outdoor communication port 10322 are convenient to cooperate with the fresh air pipe, and the incoming and outgoing air requirements of the first sub-wind cavity 101 and the second sub-wind cavity 102 are met through a single fresh air pipe. The wind cover is arranged in the second sub-wind cavity 102, and the movable plate body 1041 is arranged on the wind cover 104. By rotating the movable plate body 1041, the position of the movable plate body 1041 is changed, so that the communication or separation of the first sub-wind cavity 101 and the second sub-wind cavity 102 is realized, and the structure is simple and easy to realize.

[0070] Optionally, the first windbox wall is constructed with a first outdoor connection port 10321 corresponding to the first sub-wind chamber 101, and a second outdoor connection port 10322 corresponding to the second sub-wind chamber 102. Combined with Figure 5 As shown, the fresh air module also includes a fresh air duct 3, which has an axially extending partition 301 inside. The partition 301 divides the internal space of the fresh air duct into a first duct air duct and a second duct air duct. The first duct air duct is connected to the first outdoor connection port 10321, and the second duct air duct is connected to the second outdoor connection port 10322.

[0071] With this configuration, the air intake and exhaust requirements of the first sub-air chamber 101 and the second sub-air chamber 102 can be met by a single fresh air duct, which helps to reduce the number of openings in the wall.

[0072] Optionally, the partition 301 is made of a thermally conductive material to allow heat exchange between the gases in the first and second ducts. This arrangement facilitates the recovery of heat / cold energy from the exhaust indoor air and uses the heat / cold energy from the exhaust indoor air to heat / cool the introduced outdoor fresh air, thereby improving the comfort of the introduced outdoor fresh air.

[0073] In some embodiments, combined with Figure 1 , Figure 4 and Figure 6 The module housing 1 also includes a lower housing 4 and an air plug assembly 5.

[0074] The lower housing 4 includes a connecting portion 401, a first air duct portion 402, and a second air duct portion 403. The connecting portion 401 communicates with the second fan outlet 2022 and is configured with a first indoor air outlet 4011, a first connecting hole, and a second connecting hole. The first end of the first air duct portion 402 communicates with the first connecting hole, and the second end communicates with the first bottom wall opening 1034. The first end of the second air duct portion 403 communicates with the second connecting hole, and the second end communicates with the second bottom wall opening 1035.

[0075] A wind-blocking assembly 5 is disposed at the connecting portion 401. The wind-blocking assembly 5 can rotate to a first position to simultaneously block the second connecting hole and the first indoor air outlet, allowing the gas discharged from the second fan outlet 2022 to flow through the first connecting hole and the first air duct portion 402 to the first sub-air chamber 101. The wind-blocking assembly 5 can rotate to a second position to block the first indoor air outlet 4011 and avoid the second connecting hole, allowing the gas discharged from the second fan outlet 2022 to flow through the second connecting hole and the second air duct portion 403 to the second sub-air chamber 102. The wind-blocking assembly 5 can rotate to a third position to block the second connecting hole and avoid the first indoor air outlet 4011, allowing the gas discharged from the second fan outlet 2022 to flow into the room through the first indoor air outlet 4011.

[0076] By providing the first air duct section 402, the first sub-air cavity 101 can be connected to the second fan outlet 2022. By providing the second air duct section 403, the second sub-air cavity 102 can be connected to the second fan outlet. By providing the air plug assembly 5, it is easy to switch the connection state of the second fan outlet 2022. By switching the connection state of the first and second sub-air cavities, different air path connection states corresponding to the mixed air mode, the fresh air mode, and the bidirectional air exchange mode can be formed.

[0077] Optionally, the first connecting hole is disposed at the first end of the connecting part 401, the second fan outlet 2022 is connected to the first end of the connecting part 401, and the first indoor air outlet 4011 and the second connecting hole are disposed at the second end of the connecting part 401.

[0078] Optionally, combined Figure 7 and Figure 8 The wind block assembly 5 includes a fixed baffle 501 and a rotating component 502.

[0079] A fixing baffle 501 is disposed inside the connecting portion 401 and located in the middle of the connecting portion 401. The fixing baffle 501 includes two right-angled sectors connected at their ends and centrally symmetrical, and the arc-shaped end faces of the two right-angled sectors are respectively fixedly connected to the inner wall of the connecting portion 401. The fixing baffle 501 and the inner wall of the connecting portion 401 enclose and define a notch with the same shape as the fixing baffle 501.

[0080] A rotating member 502 is disposed inside the connecting portion 401 and located on the side of the fixed baffle 501 near the first indoor air outlet 4011. The rotating member 502 includes a rotating shaft 5021, an end plate 5022, and an arc-shaped side plate 5023. The rotating shaft 5021 is parallel to the extending direction of the connecting portion 401. The end plate 5022 is disposed on the side of the rotating shaft 5021 near the fixed baffle 501, and the shape of the end plate 5022 is the same as that of the fixed baffle 501. The end plate 5022 defines a first sector-shaped notch and a second sector-shaped notch, and the arc-shaped side plate 5023 includes an arc-shaped end face near the end plate 5022, the arc-shaped end face coinciding with the arc-shaped contour of the first sector-shaped notch.

[0081] Combination Figure 8 A. When the air block assembly 5 is rotated to the first position, the end plate 5022 coincides with the notch, thus simultaneously blocking the second connecting hole and the first indoor air outlet. Combined with... Figure 8 B. When the air block assembly 5 is rotated to the second position, the end plate 5022 coincides with the fixed baffle 501, and the arc-shaped side plate 5023 corresponds to the first indoor air outlet 4011 to block the first indoor air outlet 4011 and avoid the second connecting hole. Figure 10C. When the air block assembly 5 is rotated to the third position, the end plate 5022 coincides with the fixed baffle 501, and the arc-shaped side plate 5023 corresponds to the two connecting holes to block the second connecting hole and avoid the first indoor air outlet 4011.

[0082] In some embodiments, the fan assembly 2 further includes a fan baffle, a first impeller, a second impeller, and a dual-shaft motor. A first fan volute 201 and a second fan volute 202 are disposed on opposite sides of the fan baffle. The first impeller is disposed within the first fan volute 201. The second impeller is disposed within the second fan volute 202. The dual-shaft motor includes a first output shaft and a second output shaft. The first output shaft extends into the first fan volute 201 and is fixedly connected to the first impeller, and the second output shaft extends into the second fan volute 202 and is fixedly connected to the second impeller.

[0083] For example, when the fresh air module is in bidirectional ventilation mode, the air block assembly 5 rotates to the first position, and the movable plate unfolds to separate the first sub-air cavity 101 and the second sub-air cavity 102. Outdoor fresh air is sequentially delivered to the room through the second sub-air cavity 102, the first fan inlet 2011, and the first fan outlet 2012. Indoor air is sequentially discharged to the outside through the second fan inlet 2021, the second fan outlet 2022, the first air duct 402, and the first sub-air cavity 101.

[0084] When the fresh air module is in 100% fresh air mode, the air block assembly 5 rotates to the third position, and the movable baffle folds to connect the first sub-air chamber 101 and the second sub-air chamber 102. Fresh air enters the first fan inlet 2011 through the first sub-air chamber 101 and the second sub-air chamber 102, and then is delivered to the room sequentially through the first fan casing 201 and the first fan outlet 2012. Indoor air flows sequentially through the second fan inlet 2021, the second fan casing 202, and the second fan outlet 2022 back into the room.

[0085] When the fresh air module is in mixed air mode, the air block assembly 5 rotates to the second position and the movable baffle folds to connect the first sub-air cavity 101 and the second sub-air cavity 102. Part of the fresh air enters the second sub-air cavity 102 through the first sub-air cavity 101, and the other part of the fresh air directly enters the second sub-air cavity 102; indoor air enters the second sub-air cavity 102 sequentially through the second fan inlet 2021, the second fan outlet 2022, and the second air duct 403; after the fresh air and indoor air are mixed in the second sub-air cavity 102, they flow into the room sequentially through the first fan inlet and the first fan outlet.

[0086] Optionally, combined Figure 10As shown, the fresh air module also includes a first air guide duct 7. The first port of the first air guide duct 7 is connected to the first indoor air outlet 4011, and the second port of the first air guide duct 7 extends upwards. This helps to increase the outlet height of the fresh air and improve the fresh air effect.

[0087] Optionally, a second filter element is provided at the second port of the first air guide duct 7. For example, the second filter element is a HEPA filter.

[0088] Optionally, combined Figure 9 As shown, the fresh air module also includes a second air guide duct 8. The bottom wall of the second air guide duct 8 has a first port, which connects to the air outlet 2012 of the first fan. The two side ends of the second air guide duct 8 have second and third ports. This helps improve the uniformity of the fresh air. Filter elements, such as HEPA filters, are installed at both the second and third ports of the second air guide duct 8.

[0089] Secondly, this disclosure provides a cabinet air conditioner.

[0090] Combination ​ As shown, the air conditioner cabinet unit provided in this embodiment includes a cabinet unit housing 6 and a fresh air module from any of the above embodiments. The lower part of the cabinet unit housing 6 is provided with an accommodating space. Given the beneficial effects of including the aforementioned fresh air module, further details will not be elaborated here.

[0091] Optionally, the cabinet housing 6 has clearance holes corresponding to the second port of the first air guide duct 7, the second port of the second air guide duct 8, and the third port of the second air guide duct 8. This facilitates the delivery of fresh air into the room.

[0092] Optionally, the fresh air conditioner also includes a control module. The control module is configured to detect the indoor carbon dioxide concentration and particulate matter content. Based on the indoor carbon dioxide concentration and particulate matter content, the fresh air conditioner determines its operating strategy. This operating strategy may include operating in one of the following modes: bidirectional fresh air exchange mode, 100% fresh air mode, or mixed air mode.

[0093] This setup allows for the determination of an operating strategy that is adapted to the indoor air quality based on the indoor carbon dioxide concentration and particulate matter content. This helps to meet the fresh air exchange needs under different conditions and improve the purification effect and comfort of the fresh air.

[0094] Understandably, fresh air conditioners periodically monitor indoor carbon dioxide and particulate matter concentrations, and then adjust their operating strategy accordingly. After one cycle of operation, indoor air quality improves to some extent. Adjusting the operating strategy based on these concentrations helps save energy and improve air quality.

[0095] The cycle includes a time cycle. For example, at preset intervals, the fresh air conditioner detects the indoor carbon dioxide concentration and particulate matter content.

[0096] In some embodiments, the fresh air conditioner determines its operating strategy based on the indoor carbon dioxide concentration and particulate matter content, including: determining that the fresh air conditioner operates in a two-way fresh air exchange mode when the indoor carbon dioxide concentration is greater than or equal to a carbon dioxide concentration threshold; and determining that the fresh air conditioner operates in a 100% fresh air mode or a mixed air mode when the indoor carbon dioxide concentration is less than a carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to a particulate matter content threshold.

[0097] With this setup, when carbon dioxide concentration exceeds the standard, the fresh air conditioner operates in a two-way fresh air exchange mode. The fresh air conditioner simultaneously introduces fresh outdoor air and exhausts indoor air with excessive carbon dioxide, rapidly replacing indoor air, reducing indoor carbon dioxide levels, and improving user comfort. When the indoor carbon dioxide concentration is below the carbon dioxide concentration threshold and the indoor particulate matter concentration is greater than or equal to the particulate matter concentration threshold, it can quickly improve indoor air quality while reducing heat / cooling emissions and saving energy.

[0098] In some embodiments, when the fresh air conditioner is operating in winter, determining whether the fresh air conditioner is operating in 100% fresh air mode or mixed air mode includes: the fresh air conditioner acquiring the indoor dew point temperature and the outdoor temperature. If the outdoor temperature is greater than or equal to the indoor dew point temperature, it is determined that the fresh air conditioner is operating in mixed air mode.

[0099] When the outdoor temperature is greater than or equal to the indoor dew point temperature, the air conditioner operates in mixed air mode. Fresh air and indoor air mix in the second sub-cavity before being delivered into the room. At this time, the temperature difference between the fresh air and indoor air is small, and the mixing in the second sub-cavity prevents condensation. Simultaneously, the indoor air can be used to raise the temperature of the fresh air, which helps reduce the temperature difference between the fresh air and the indoor air, improving the comfort level of the fresh air supply.

[0100] In some embodiments, when the fresh air conditioner operates in mixed air mode, fresh air and indoor air are mixed in the second sub-cavity before being delivered into the room. The fresh air conditioner also includes a heating element. When the fresh air conditioner operates in winter, determining whether the fresh air conditioner is operating in 100% fresh air mode or mixed air mode further includes: when the outdoor temperature is lower than the indoor dew point temperature, determining that the fresh air conditioner is operating in mixed air mode, and controlling the heating element to be turned on, using the heating element to heat the outdoor fresh air entering the fresh air conditioner, thereby preventing condensation from forming in the second sub-cavity.

[0101] This design reduces the temperature difference between fresh air and indoor air, improving the comfort of the fresh air supply. Simultaneously, it prevents condensation in the second sub-cavity, enhancing the reliability of the fresh air conditioner. Specifically, when the outdoor temperature is lower than the indoor dew point temperature, the air conditioner operates in mixed air mode. Fresh air and indoor air mix in the second sub-cavity before being delivered indoors. The indoor air is used to raise the temperature of the fresh air, which helps reduce the temperature difference between the fresh air and indoor air, improving comfort. Furthermore, because of the significant temperature difference between fresh air and indoor air, direct mixing in the second sub-cavity could lead to condensation, posing safety hazards such as electric shock or short circuits. Using heating elements to heat the outdoor fresh air entering the fresh air conditioner reduces the temperature difference between the fresh air and indoor air, preventing condensation in the fresh air module due to air mixing, thus improving the reliability of the fresh air conditioner.

[0102] Optionally, controlling the activation of the heating element includes: activating the heating element to heat the outdoor fresh air entering the fresh air conditioner to a first temperature. The first temperature is greater than or equal to the indoor dew point temperature.

[0103] Here, the first temperature refers to the temperature at which the outdoor fresh air entering the fresh air conditioner is less likely to produce condensation.

[0104] In the mixed-air mode of a fresh air conditioner, indoor air and outdoor fresh air mix in the second sub-cavity. The lower-temperature outdoor fresh air and the higher-temperature indoor air mix in this second sub-cavity, which can cause condensation. By heating the outdoor fresh air to a first temperature, condensation in the second sub-cavity can be avoided, improving the reliability of the fresh air conditioner. Simultaneously, this helps to increase the temperature of the mixed air, reduce the temperature difference between the mixed air and the indoor environment, and improve the comfort of the fresh air delivery.

[0105] For example, when the fresh air conditioner is operating in winter, the indoor dew point temperature is 10°C and the outdoor temperature is 5°C. Since the outdoor temperature is lower than the indoor dew point temperature, the fresh air conditioner operates in mixed air mode and controls the heating element to be turned on, using the heating element to heat the outdoor fresh air entering the fresh air conditioner.

[0106] When the fresh air conditioner is running in winter, the indoor dew point temperature is 10℃ and the outdoor temperature is 12℃. When the outdoor temperature is higher than the indoor dew point temperature, the fresh air conditioner operates in mixed air mode.

[0107] Optionally, when the fresh air conditioner is operating in summer, determine whether the fresh air conditioner is running in 100% fresh air mode or mixed air mode, including: obtaining the outdoor dew point temperature and the indoor temperature. If the indoor temperature is greater than or equal to the outdoor dew point temperature, determine that the fresh air conditioner is running in mixed air mode. If the indoor temperature is less than the outdoor dew point temperature, determine that the fresh air conditioner is running in 100% fresh air mode.

[0108] When the indoor temperature is greater than or equal to the outdoor dew point temperature, the temperature difference between the fresh air and the indoor air is small, and condensation will not occur when they meet. In this case, the air conditioner operates in mixed air mode, mixing indoor air and outdoor fresh air before delivering them into the room. This utilizes the indoor air to lower the temperature of the outdoor fresh air, improving the comfort of the fresh air supply. However, when the indoor temperature is lower than the outdoor dew point temperature, the temperature difference between the fresh air and the indoor air is larger. If mixed air mode is used in this case, condensation is likely to occur in the second sub-cavity, posing a safety hazard. Therefore, when the indoor temperature is lower than the outdoor dew point temperature, the fresh air conditioner operates in 100% fresh air mode, introducing outdoor fresh air to quickly refresh the indoor air. This also prevents condensation from forming inside the fresh air conditioner, improving its reliability.

[0109] For example, when the fresh air conditioner is operating in summer, the outdoor dew point temperature is 30°C and the indoor temperature is 27°C. Since the indoor temperature is lower than the outdoor dew point temperature, the fresh air conditioner operates in 100% fresh air mode.

[0110] When the fresh air conditioner is running in summer, the outdoor dew point temperature is 26℃ and the indoor temperature is 27℃. When the indoor temperature is higher than the outdoor dew point temperature, the fresh air conditioner operates in mixed air mode.

[0111] Thirdly, this disclosure provides an air conditioner. The air conditioner provided in this disclosure includes the floor-standing air conditioner unit of any of the above embodiments. Given the beneficial effects of including the floor-standing air conditioner unit, these will not be elaborated further here.

[0112] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A fresh air module, characterized in that, include: The module housing has a ventilation cavity, which includes a first sub-ventilation cavity and a second sub-ventilation cavity that are respectively connected to the outside. The first sub-ventilation cavity can be separated from or connected to the second sub-ventilation cavity. A fan assembly includes a first fan volute and a second fan volute; the first fan volute includes a first fan inlet that can communicate with a second sub-cavity and a first fan outlet that communicates with the room; the second fan volute includes a second fan inlet that communicates with the room and a second fan outlet that can communicate with the first sub-cavity, the second sub-cavity, or the room. The fresh air module includes at least a bidirectional ventilation mode and a mixed air mode. In the bidirectional ventilation mode, outdoor fresh air is sequentially delivered to the room through the second sub-cavity, the first fan inlet, and the first fan outlet. The second fan outlet is connected to the first sub-cavity, while the first sub-cavity is separated from the second sub-cavity. Indoor air is sequentially discharged to the outside through the second fan inlet, the second fan outlet, and the first sub-cavity. In the mixed air mode, the second fan outlet is connected to the second sub-cavity, and the first sub-cavity is connected to the second sub-cavity. Part of the fresh air enters the second sub-cavity through the first sub-cavity, while the other part directly enters the second sub-cavity. Indoor air enters the second sub-cavity sequentially through the second fan inlet and the second fan outlet. After the fresh air and indoor air are mixed in the second sub-cavity, they flow into the room sequentially through the first fan inlet and the first fan outlet. The module housing also includes: The lower housing includes a connecting part, a first air duct part, and a second air duct part; the connecting part is connected to the air outlet of the second fan, and the connecting part is configured with a first indoor air outlet, a first connecting hole, and a second connecting hole; the first end of the first air duct part is connected to the first connecting hole, and the second end is connected to the first sub-air cavity; the first end of the second air duct part is connected to the second connecting hole, and the second end is connected to the second sub-air cavity.

2. The fresh air module according to claim 1, characterized in that, The fresh air module also includes a fresh air mode; in the fresh air mode, the outlet of the second fan is connected to the room, and the first sub-air cavity is connected to the second sub-air cavity. Fresh air enters the inlet of the first fan through the first sub-air cavity and the second sub-air cavity, and then is delivered to the room through the first fan casing and the first fan outlet in sequence; indoor air flows back to the room through the second fan inlet, the second fan casing and the second fan outlet in sequence.

3. The fresh air module according to claim 1, characterized in that, The module housing includes: A bellows is located on one side of the fan assembly, and its internal space is the air cavity; A wind hood is disposed in the wind cavity to divide the wind cavity into a first sub-wind cavity located inside the wind hood and a second sub-wind cavity located outside the wind hood; the wind hood includes a movable plate that can move to separate or connect the first sub-wind cavity and the second sub-wind cavity.

4. The fresh air module according to claim 3, characterized in that, The bellows includes a first bellows wall away from the fan assembly, the first bellows wall having a first outdoor connection corresponding to a first sub-cavity, and a second outdoor connection corresponding to a second sub-cavity; The fresh air module also includes: The fresh air duct has an axially extending partition inside, which divides the internal space of the fresh air duct into a first internal air duct and a second internal air duct. The first internal air duct is connected to the first outdoor connection port, and the second internal air duct is connected to the second outdoor connection port.

5. The fresh air module according to claim 4, characterized in that, The hood also includes a vertically arranged first side plate, and the first air box wall has a through hole; the first end of the first side plate is vertically connected to the first air box wall, and the first side plate passes through the through hole, dividing the through hole into a first outdoor connecting port and a second outdoor connecting port; wherein, the second end of the first side plate is rotatably connected to the pivot axis of the movable plate, and the movable plate can rotate around the pivot axis to separate or connect the first sub-air cavity and the second sub-air cavity.

6. The fresh air module according to any one of claims 1 to 5, characterized in that, The module housing also includes: The air block assembly is located at the connecting part and can be rotated to a first position to simultaneously block the second connecting hole and the first indoor air outlet, rotated to a second position to block the first indoor air outlet and avoid the second connecting hole, and rotated to a third position to block the second connecting hole and avoid the first indoor air outlet.

7. The fresh air module according to any one of claims 1 to 5, characterized in that, The wind turbine components also include: The fan baffle, the first fan volute and the second fan volute are disposed on opposite sides of the fan baffle; The first impeller is installed inside the first fan casing; The second impeller is housed within the casing of the second fan; and, A dual-shaft motor includes a first output shaft and a second output shaft. The first output shaft extends into the first fan volute and is fixedly connected to the first impeller. The second output shaft extends into the second fan volute and is fixedly connected to the second impeller.

8. A floor-standing air conditioner, characterized in that, include: The cabinet air conditioner casing has a storage space at its bottom; and, The fresh air module as described in any one of claims 1 to 7 is disposed in the accommodating space.

9. An air conditioner, characterized in that, Including the air conditioner cabinet unit as described in claim 8.

Images