Fresh air conditioner, control method and control device thereof and storage medium

Abstract

The invention relates to the technical field of air conditioners, and discloses a fresh air conditioner which comprises a module shell, a first sub-air cavity and a second sub-air cavity which communicate with the outdoor space are constructed in the module shell, and the first sub-air cavity can be separated from or communicate with the second sub-air cavity; the fan assembly comprises a first fan air inlet capable of communicating with the second sub-air cavity, a first fan air outlet communicating with the interior of the room, a second fan air inlet communicating with the interior of the room, and a second fan air outlet capable of communicating with the first sub-air cavity, the second sub-air cavity or the interior of the room; and the control module is configured to control communication and separation between the air outlet of the second fan and the first sub-air cavity, the second sub-air cavity or the indoor space and separation or communication between the first sub-air cavity and the second sub-air cavity according to the operation strategy of the fresh air conditioner. The fresh air conditioner can be combined into various fresh air paths, so that the fresh air exchange requirements under different conditions are met. The invention further discloses a control method and device for the fresh air conditioner and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of fresh air air conditioners, for example, to a fresh air air conditioner and a control method, a control device and a storage medium thereof. Background Art

[0002] As people pay more and more attention to air quality issues, users have higher and higher requirements for air quality in daily living rooms such as living rooms and bedrooms. There are many factors that lead to the decline of indoor air quality, such as formaldehyde, benzene, and ammonia air pollutants volatilized from indoor decoration materials, or the indoor air is not circulated due to the doors and windows being closed at night, which will accumulate a large amount of harmful gases such as carbon dioxide and formaldehyde. Such air quality problems will more or less affect the health of users in the room, such as inducing users to feel chest tightness, shortness of breath, dry mouth, and difficulty breathing.

[0003] One of the effective ways to solve the above air quality problems is to maintain ventilation between indoor and outdoor areas, and let fresh air from the outdoor side enter the indoor environment to increase the oxygen content of indoor air and reduce the concentration of air pollutants. In this case, the "fresh air air conditioner" product came into being. Fresh air air conditioners are based on traditional air conditioner models and add fresh air modules, fresh air ducts and other components. The fan is used to draw fresh air from the outdoor side into the indoor environment to improve the indoor air quality.

[0004] The related technology provides a fresh air module with dual functions of outdoor fresh air and indoor exhaust. The fresh air module is switched periodically so that the fresh air module can introduce fresh air into the indoor side in one cycle and exhaust air to the outdoor side in another cycle, thereby realizing a "breathing" air purification method.

[0005] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0006] The fresh air module in the related art only includes a single mode of alternating fresh air and exhaust air, which cannot meet the demand for fresh air replacement in different situations.

[0007] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0008] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0009] The embodiments of the present disclosure provide a fresh air air conditioner and a control method, a control device and a storage medium thereof, which can be combined into a variety of fresh air paths to meet the fresh air replacement needs in different situations.

[0010] In some embodiments, the fresh air air conditioner includes: a module shell, which is constructed with a first sub-air chamber and a second sub-air chamber respectively connected to the outdoors, and the first sub-air chamber can be separated from or connected to the second sub-air chamber; a fan assembly, including a first fan air inlet that can be connected to the second sub-air chamber, a first fan air outlet connected to the indoor room, a second fan air inlet connected to the indoor room, and a second fan air outlet that can be connected to the first sub-air chamber, the second sub-air chamber or the indoor room; a control module, which is configured to control the connection and separation of the second fan outlet with the first sub-air chamber, the second sub-air chamber or the indoor room, and the separation or connection of the first sub-air chamber and the second sub-air chamber according to the operation strategy of the fresh air air conditioner.

[0011] In some embodiments, the operation strategy of the fresh air air conditioner includes a two-way fresh air exchange mode, a full fresh air mode and a mixed air mode; the control module is configured as follows: when operating in the two-way fresh air exchange mode, the second fan air outlet is controlled to be connected to the first sub-air cavity, and the first sub-air cavity is separated from the second sub-air cavity; when the fresh air air conditioner operates in the full fresh air mode, the second fan air outlet is controlled to be connected to the indoor room, and the first sub-air cavity is connected to the second sub-air cavity; when the fresh air air conditioner operates in the mixed air mode, the second fan air outlet is connected to the second sub-air cavity, and the first sub-air cavity is connected to the second sub-air cavity.

[0012] In some embodiments, the control method for the above-mentioned fresh air air conditioner includes: detecting the indoor carbon dioxide concentration and particulate matter content; determining the operation strategy of the fresh air air conditioner according to the indoor carbon dioxide concentration and particulate matter content; wherein the operation strategy includes operating one of a two-way fresh air exchange mode, a fresh air mode or a mixed air mode.

[0013] In some embodiments, the operation strategy of the fresh air air conditioner is determined based on the indoor carbon dioxide concentration and particulate matter content, including: when the indoor carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, determining that the fresh air air conditioner operates in a two-way fresh air exchange mode; when the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to the particulate matter content threshold, determining that the fresh air air conditioner operates in a fresh air mode or a mixed air mode.

[0014] In some embodiments, the fresh air air conditioner includes a heating element. When the fresh air air conditioner operates in a two-way fresh air exchange mode, the control method also includes: obtaining the indoor dew point temperature and the outdoor temperature; when the outdoor temperature is lower than the indoor dew point temperature, controlling the heating element to turn on, so as to use the heating element to heat the outdoor fresh air entering the fresh air air conditioner.

[0015] In some embodiments, when the fresh air air conditioner is operating in winter, determining whether the fresh air air conditioner is operating in a fresh air mode or a mixed air mode includes: obtaining the indoor dew point temperature and the outdoor temperature; when the outdoor temperature is greater than or equal to the indoor dew point temperature, determining that the fresh air air conditioner is operating in a mixed air mode.

[0016] In some embodiments, when the fresh air air conditioner operates in a mixed wind mode, the fresh air and indoor air are mixed in the second sub-air chamber and then sent into the room, and the fresh air air conditioner also includes a heating element; when the fresh air air conditioner is operated in winter, the determination of whether the fresh air air conditioner operates in a fresh air mode or a mixed wind mode also includes: when the outdoor temperature is lower than the indoor dew point temperature, determining that the fresh air air conditioner operates in a mixed wind mode, and controlling the heating element to turn on, using the heating element to heat the outdoor fresh air entering the fresh air air conditioner to avoid condensation in the second sub-air chamber.

[0017] In some embodiments, the controlling of turning on the heating element includes: turning on the heating element to heat the outdoor fresh air entering the fresh air air conditioner to a first temperature; wherein the first temperature is greater than or equal to the indoor dew point temperature.

[0018] In some embodiments, when the fresh air air conditioner is operating in summer, determining whether the fresh air air conditioner is operating in fresh air mode or mixed air mode includes: obtaining the outdoor dew point temperature and the indoor temperature; when the indoor temperature is greater than or equal to the outdoor dew point temperature, determining that the fresh air air conditioner is operating in mixed air mode; when the indoor temperature is lower than the outdoor dew point temperature, determining that the fresh air air conditioner is operating in fresh air mode.

[0019] In some embodiments, a control device for a fresh air air conditioner includes a processor and a memory storing program instructions, and the processor is configured to execute the control method for the fresh air air conditioner as described above when running the program instructions.

[0020] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the above-mentioned control method for the fresh air air conditioner is executed.

[0021] The fresh air air conditioner and its control method, control device and storage medium provided in the embodiments of the present disclosure can achieve the following technical effects:

[0022] The fresh air air conditioner provided in the embodiment of the present disclosure can be combined into a variety of fresh air paths to meet the needs of fresh air exchange in different situations by controlling the connection and separation of the second fan outlet with the first sub-air chamber, the second sub-air chamber or the room, as well as the separation or connection of the first sub-air chamber and the second sub-air chamber.

[0023] The control method for the fresh air air conditioner provided in the embodiment of the present disclosure can determine an operating strategy that is compatible with the indoor air quality according to the indoor carbon dioxide concentration and particulate matter content, which is conducive to meeting the demand for fresh air exchange in different situations and improving the purification effect of indoor air and the comfort of fresh air.

[0024] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0026] Figure 1 is a structural schematic diagram of a fresh air module provided in an embodiment of the present disclosure;

[0027] Figure 2A is a partial structural schematic diagram of a fresh air module provided in an embodiment of the present disclosure;

[0028] Figure 2B yes Figure 2A Schematic diagram of the structure at another angle;

[0029] Figure 3A is a structural schematic diagram of a fan assembly provided by an embodiment of the present disclosure;

[0030] Figure 3B yes Figure 3A Schematic diagram of the structure at another angle;

[0031] Figure 4 is a structural schematic diagram of another fresh air module provided in an embodiment of the present disclosure;

[0032] Figure 5 is a structural schematic diagram of a new air duct provided by an embodiment of the present disclosure;

[0033] Figure 6 is a schematic structural diagram of a lower housing provided by an embodiment of the present disclosure;

[0034] Figure 7 is a schematic structural diagram of a rotating member provided by an embodiment of the present disclosure;

[0035] Figure 8 is a schematic diagram of a rotating member in a wind blocking assembly provided by an embodiment of the present disclosure in different states;

[0036] Fig. 9 is a structural schematic diagram of an air conditioner cabinet provided by an embodiment of the present disclosure;

[0037] Fig.10 is a structural schematic diagram of another fresh air module provided in an embodiment of the present disclosure;

[0038] Fig.11 is a partial structural schematic diagram of a fresh air module provided in an embodiment of the present disclosure;

[0039] Fig.12 is a flow chart of a control method for a fresh air air conditioner provided by an embodiment of the present disclosure;

[0040] Fig.13 is a schematic diagram of a control device for a fresh air air conditioner provided by an embodiment of the present disclosure;

[0041] Fig.14 is another flow chart of a control method for a fresh air air conditioner provided by an embodiment of the present disclosure;

[0042] Fig.15 This is another flow chart of a control method for a fresh air air conditioner provided in an embodiment of the present disclosure.

[0043] Reference numerals:

[0044] 1. Module housing; 101. First sub-wind chamber; 102. Second sub-wind chamber; 103. Bellows; 1031. First bellows wall; 1032. Through hole; 1033. Bellows bottom wall; 1034. First bottom wall opening; 1035. Second bottom wall opening; 10321. First outdoor communication port; 10322. Second outdoor communication port; 104. Wind hood; 1041. Movable plate; 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 duct; 301, partition; 4, lower shell; 401, connecting part; 4011, first indoor air outlet; 402, first air duct part; 403, second air duct part; 5, wind blocking assembly; 501, fixed baffle; 502, rotating part; 5021, rotating shaft; 5022, end plate; 5023, curved side plate; 6, cabinet casing; 7, first air guide duct fitting; 8, second air guide duct fitting; 9, control module. DETAILED DESCRIPTION

[0045] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0046] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0047] Unless otherwise stated, the term "plurality" means two or more.

[0048] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0049] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0050] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0051] In a first aspect, an embodiment of the present disclosure provides a fresh air air conditioner.

[0052] Combination Figures 1 to 4 ,as well as Fig. 9 As shown, the fresh air air conditioner provided in the embodiment of the present disclosure includes a fresh air module. The fresh air module includes a module housing 1 , a fan assembly 2 and a control module 9 .

[0053] The module housing 1 is configured with a wind cavity, which includes a first sub-wind cavity 101 and a second sub-wind cavity 102 respectively communicated with the outdoors, and the first sub-wind cavity 101 can be separated from or communicated with the second sub-wind cavity 102 .

[0054] The fan assembly 2 includes a first fan volute 201 and a second fan volute 202. The first fan volute 201 includes a first fan air inlet 2011 that can be communicated with the second sub-wind chamber 102, and a first fan air outlet 2012 that is communicated with the indoor room. The second fan volute 202 includes a second fan air inlet 2021 that is communicated with the indoor room, and a second fan air outlet 2012 that can be communicated with the first sub-wind chamber 101, the second sub-wind chamber 102 or the indoor room. The control module is configured to control the connection and separation of the second fan air outlet with the first sub-wind chamber, the second sub-wind chamber or the indoor room, and the separation or connection of the first sub-wind chamber with the second sub-wind chamber according to the operation strategy of the fresh air air conditioner.

[0055] The fresh air air conditioner provided in the embodiment of the present disclosure can be combined into a variety of fresh air paths to meet the needs of fresh air exchange in different situations by controlling the connection and separation of the second fan outlet with the first sub-air chamber, the second sub-air chamber or the room, as well as the separation or connection of the first sub-air chamber and the second sub-air chamber.

[0056] In some embodiments, the operation strategy of the fresh air air conditioner includes a two-way fresh air exchange mode, a full fresh air mode, and a mixed air mode. In the two-way fresh air exchange mode, the fresh air air conditioner introduces outdoor fresh air while exhausting indoor air; in the full fresh air mode, the fresh air air conditioner only introduces outdoor fresh air; in the mixed air mode, the fresh air air conditioner mixes outdoor fresh air with indoor air and then sends it into the room.

[0057] In some embodiments, in the two-way fresh air exchange mode, the control module 9 controls the second fan outlet 2022 to be connected to the first sub-wind chamber 101, and the first sub-wind chamber 101 is separated from the second sub-wind chamber 102. Outdoor fresh air is sequentially delivered to the room through the second sub-wind chamber 102, the first fan air inlet 2011, and the first fan air outlet 2012. Indoor air is sequentially discharged to the outside through the second fan air inlet 2021, the second fan air outlet 2022, and the first sub-wind chamber 101. In this way, the fresh air module can simultaneously introduce outdoor fresh air and discharge indoor air, which is conducive to improving air purification efficiency.

[0058] It can be understood that the fan assembly 2 includes a first fan and a second fan, the first fan includes a first fan volute 201 , and the second fan includes a second fan volute 202 .

[0059] Optionally, combined Figure 1 As shown, the second fan air inlet 2021 is arranged upward, and the second fan air outlet 2022 is arranged downward. In this way, it is convenient to arrange the fresh air module and cooperate with other structures to realize fresh air exchange.

[0060] Optionally, the size of the first fan volute 201 is larger than the size of the second fan volute 202. The volume ratio of the first sub-wind chamber 101 to the second sub-wind chamber 102 ranges from 1:1 to 1:2. For example, the volume ratio of the first sub-wind chamber 101 to the second sub-wind chamber 102 is 1:1, 1:1.3, 1:1.5, 1:1.6, 1:1.8 or 1:2, etc.

[0061] With this setting, the fresh air volume introduced by the fresh air module is slightly larger than the exhaust volume, which can keep the indoor air under a slight positive pressure. Since most indoor spaces are not completely sealed, the slight positive pressure can prevent unfiltered outdoor air from entering the room directly through gaps such as doors and windows.

[0062] Optionally, a first filter element is provided 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.

[0063] In some embodiments, the fresh air module also includes a fresh air mode. In the fresh air mode, the control module 9 controls the second fan air outlet 2022 to be connected to the room, and the first sub-air cavity 101 is connected to the second sub-air cavity 102. The fresh air enters the first fan air inlet 2011 through the first sub-air cavity 101 and the second sub-air cavity 102, and then is sequentially delivered to the room 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 room.

[0064] In this way, only by switching the connection state of the second fan outlet 2022 and the connection state of the first sub-air cavity 101 and the second sub-air cavity 102, different wind path connection states corresponding to the fresh air mode and the two-way fresh air exchange mode can be formed, which is convenient for switching the air intake mode of the fresh air module. In addition, the fresh air intake mode can be adjusted based on the indoor air quality, which is conducive to improving the indoor air quality more quickly, while reducing the external discharge of heat / cold, and saving energy.

[0065] For example, when the indoor particulate matter content exceeds the standard, the fresh air mode is turned on, and the first fan is used to introduce outdoor fresh air to continuously improve the indoor air quality and ensure the comfort of users. At the same time, the second fan is used to absorb indoor air, and the filter of the second fan is used to remove the particulate matter in the indoor air, and then the filtered indoor air is sent back to the room. Using the second fan to filter the indoor air can not only reduce the particulate matter content in the indoor air and solve the problem of excessive indoor particulate matter content, but also reduce the heat / cold discharge and improve the energy efficiency of the air conditioner.

[0066] On the contrary, if the second fan is used to discharge the indoor air, although it can solve the problem of excessive indoor particulate matter content, the discharge of the hotter / colder indoor air will cause a loss of some heat / coldness, resulting in an increase in the energy consumption of the air conditioner.

[0067] In some embodiments, the fresh air module also includes a mixed wind mode. In the mixed wind mode, the control module 9 controls the second fan outlet 2022 to be connected to the second sub-wind chamber 102, and the first sub-wind chamber 101 to be connected to the second sub-wind chamber 102, wherein a portion of the fresh air enters the second sub-wind chamber 102 through the first sub-wind chamber 101, and another portion of the fresh air directly enters the second sub-wind chamber 102; the indoor air enters the second sub-wind chamber 102 through the second fan air inlet 2021 and the second fan air outlet 2022 in turn; the fresh air and the indoor air are mixed in the second sub-wind chamber 102, and then flow into the room through the first fan air inlet and the first fan air outlet in turn.

[0068] With such a configuration, only by switching the connection state of the second fan outlet 2022 and the connection state of the first sub-air cavity 101 and the second sub-air cavity 102, different wind path connection states corresponding to the mixed wind mode, the fresh wind mode and the two-way fresh wind mode can be formed, which is convenient for switching the air intake mode of the fresh air module. In addition, the air intake mode of the fresh air can be adjusted based on the indoor air quality, which is conducive to improving the indoor air quality more quickly, and at the same time, it is conducive to reducing the external discharge of heat / cold, reducing the temperature difference between the fresh air and the indoor, and improving the comfort of the fresh air.

[0069] In some embodiments, in combination Figure 2A and Fig.11 As shown, the module housing 1 includes a wind box 103 and a wind shield 104. The wind box 103 is arranged on one side of the fan assembly 2, and its internal space is a wind cavity. The wind shield 104 is arranged in the wind cavity to divide the wind cavity into a first sub-wind cavity 101 located inside the wind shield and a second sub-wind cavity 102 located outside the wind shield. The wind shield 104 includes a movable plate body 1041, and the movable plate body 1041 can be moved to separate or connect the first sub-wind cavity 101 with the second sub-wind cavity 102.

[0070] With such arrangement, by rotating the movable plate 1041 of the wind hood 104, the first sub-wind chamber 101 and the second sub-wind chamber 102 can be separated or connected, which is relatively convenient. At the same time, it is convenient to cooperate with the rest of the structure of the fresh air module to form different wind path connection states corresponding to the mixed wind mode, the new wind mode and the two-way fresh air exchange mode. In addition, in the two-way fresh air exchange mode, indoor air circulates in the first sub-wind chamber 101, and outdoor fresh air circulates in the second sub-wind chamber 102. The wind hood 104 is arranged in the second sub-wind chamber 102, which is conducive to the heat exchange between the outdoor fresh air and the indoor air through the wall of the wind hood 104, recovering the heat in the indoor air, reducing the temperature difference between the outdoor fresh air and the indoor air, and improving the comfort of the fresh air.

[0071] As for the wind box 103 , the wind box 103 includes a first wind box wall 1031 away from the fan assembly, and the first wind box wall 1031 is configured with a through hole 1032 .

[0072] The bellows also includes a bellows bottom wall 1033, which is configured with a first bottom wall opening 1034 and a second bottom wall opening 1035. The wind shield 104 is sleeved on the first bottom wall opening 1034, so that the first bottom wall opening 1034 is connected to the first sub-wind chamber 101. The second bottom wall opening 1035 is connected to the second sub-wind chamber 102.

[0073] For the wind shield 104, combined Fig.11 As shown, the wind hood 104 includes 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 all arranged vertically, and the upper end plate is arranged horizontally. The first side plate 1042 and the second side plate are arranged opposite to each other and are parallel to each other. The bottom ends of the first side plate 1042 and the second side plate are both connected to the bellows bottom wall 1033, the side ends away from the fan assembly 2 are both connected to the first bellows wall 1031, the top ends are respectively connected to the two side ends of the upper end plate, and the side ends close to the fan assembly 2 are all connected to the movable plate body 1041. Each plate body of the wind hood, the bellows bottom wall 1033 and the first bellows wall 1031 enclose and define the first sub-air chamber 101.

[0074] Optionally, the wind shield 104 further includes a first side plate 1042 arranged vertically, and the first wind box wall 1031 is configured with a through hole 1032. The first end of the first side plate 1042 is vertically connected to the first wind box wall 1031, and the first side plate 1042 passes through the through hole 1032, and the through hole 1032 is divided into a first outdoor communication port 10321 located in the first sub-wind chamber 101, and a second outdoor communication port 10322 located in the second sub-wind chamber 102. The second end of the first side plate 1042 is rotatably connected to the pivot axis of the movable plate body 1041, and the movable plate body 1041 can rotate around the pivot axis to separate or connect the first sub-wind chamber 101 with the second sub-wind chamber 102.

[0075] By designing the position of the first side plate 1042, the through hole 1032 of the first wind box wall 1031 is divided into a first outdoor connecting port 10321 and a second outdoor connecting port 10322, so that the first sub-wind chamber 101 and the second sub-wind chamber 102 can be connected to the outside respectively, simplifying the structure. At the same time, it is convenient for the first outdoor connecting port 10321 and the second outdoor connecting port 10322 to cooperate with the fresh air duct, and the air inlet and outlet requirements of the first sub-wind chamber 101 and the second sub-wind chamber 102 are met by a single fresh air duct. The wind hood is arranged in the second sub-wind chamber 102, and a movable plate body 1041 is arranged on the wind hood 104. By rotating the movable plate body 1041 and changing the position of the movable plate body 1041, the first sub-wind chamber 101 and the second sub-wind chamber 102 can be connected or separated, and the structure is simple and easy to implement.

[0076] Optionally, the first wind box wall is configured with a first outdoor communication port 10321 corresponding to the first sub-wind chamber 101, and a second outdoor communication port 10322 corresponding to the second sub-wind chamber 102. Figure 5 As shown, the fresh air module also includes a fresh air duct 3, which is internally provided with a partition 301 extending axially. The partition 301 divides the internal space of the fresh air duct into a first in-tube air duct and a second in-tube air duct. The first in-tube air duct is connected to the first outdoor connecting port 10321, and the second in-tube air duct is connected to the second outdoor connecting port 10322.

[0077] With such an arrangement, the air inlet and outlet requirements of the first sub-air cavity 101 and the second sub-air cavity 102 can be met by a single new air duct, which is beneficial to reducing the number of openings in the wall.

[0078] Optionally, the material of the partition 301 is a heat-conducting material so that the gas in the first tube air duct and the second tube air duct can exchange heat. This arrangement is convenient for recovering the heat / coldness in the exhausted indoor air, and using the heat / coldness in the exhausted indoor air to heat / cool the introduced outdoor fresh air, which is conducive to improving the comfort of the introduced outdoor fresh air.

[0079] In some embodiments, in combination Figure 1 , Figure 4 and Figure 6 The module housing 1 also includes a lower housing 4 and a wind blocking assembly 5 .

[0080] 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 is connected to the second fan air outlet 2022, and the connecting portion 401 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 is connected to the first connecting hole, and the second end is connected to the first bottom wall opening 1034. The first end of the second air duct portion 403 is connected to the second connecting hole, and the second end is connected to the second bottom wall opening 1035.

[0081] The wind blocking assembly 5 is arranged at the connecting portion 401, and the wind blocking assembly 5 can be rotated to the first position to simultaneously block the second connecting hole and the first indoor air outlet, so that the gas discharged from the second fan air outlet 2022 flows to the first sub-air cavity 101 through the first connecting hole and the first air channel portion 402. The wind blocking assembly 5 can be rotated to the second position to block the first indoor air outlet 4011 and avoid the second connecting hole, so that the gas discharged from the second fan air outlet 2022 flows to the second sub-air cavity 102 through the second connecting hole and the second air channel portion 403. The wind blocking assembly 5 can be rotated to the third position to block the second connecting hole and avoid the first indoor air outlet 4011, so that the gas discharged from the second fan air outlet 2022 flows to the room through the first indoor air outlet 4011.

[0082] By providing the first air channel portion 402, the first sub-air cavity 101 can be connected to the second fan air outlet 2022. By providing the second air channel portion 403, the second sub-air cavity 102 can be connected to the second fan air outlet. By providing the wind blocking component 5, it is convenient to switch the connection state of the second fan air outlet 2022, and by switching the connection state of the first sub-air cavity and the second sub-air cavity, different air path connection states corresponding to the mixed wind mode, the fresh wind mode and the two-way fresh wind mode can be formed.

[0083] Optionally, the first connecting hole is arranged at the first end of the connecting part 401 , the second fan air 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 arranged at the second end of the connecting part 401 .

[0084] Optionally, combined Figure 7 and Figure 8 The wind blocking assembly 5 includes a fixed baffle 501 and a rotating member 502 .

[0085] The fixed baffle 501 is disposed inside the connecting portion 401 and is located in the middle of the connecting portion 401. The fixed baffle 501 includes two right-angle sectors with connected ends and central symmetry, and the arc-shaped end surfaces of the two right-angle sectors are respectively fixedly connected to the inner wall of the connecting portion 401. The fixed baffle 501 and the inner wall of the connecting portion 401 enclose a notch having the same shape as the fixed baffle 501.

[0086] The rotating member 502 is arranged inside the connecting portion 401 and is located on the side of the fixed baffle 501 close to 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 arranged on the side of the rotating shaft 5021 close to 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 fan-shaped notch and a second fan-shaped notch, and the arc-shaped side plate 5023 includes an arc-shaped end surface close to the end plate 5022, and the arc-shaped end surface coincides with the arc-shaped contour of the first fan-shaped notch.

[0087] Combination Figure 8 As shown in the structure A in FIG, when the wind blocking assembly 5 rotates to the first position, the end plate 5022 overlaps with the notch to simultaneously block the second connecting hole and the first indoor air outlet. Figure 8 As shown in the structure B in FIG, when the wind blocking assembly 5 rotates to the second position, the end plate 5022 overlaps 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 8 As shown in the C structure, when the wind blocking assembly 5 rotates to the third position, the end plate 5022 overlaps 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.

[0088] In some embodiments, in combination Figure 3A and Figure 3B The fan assembly 2 also includes a fan partition, a first fan wheel, a second fan wheel and a dual-axis motor. The first fan volute 201 and the second fan volute 202 are arranged on opposite sides of the fan partition. The first fan wheel is arranged in the first fan volute 201. The second fan wheel is arranged in the second fan volute 202. The dual-axis 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 fan wheel, and the second output shaft extends into the second fan volute 202 and is fixedly connected to the second fan wheel.

[0089] Exemplarily, when the fresh air module is in the two-way fresh air exchange mode, the wind blocking assembly 5 rotates to the first position, and the movable plate body is unfolded 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 air inlet 2011 and the first fan air outlet 2012. Indoor air is sequentially discharged to the outside through the second fan air inlet 2021, the second fan air outlet 2022, the first air duct portion 402 and the first sub-air cavity 101.

[0090] When the fresh air module is in the fresh air mode, the wind blocking assembly 5 rotates to the third position and the movable baffle is folded to connect the first sub-air cavity 101 and the second sub-air cavity 102. The fresh air enters the first fan air inlet 2011 through the first sub-air cavity 101 and the second sub-air cavity 102, and then is sequentially delivered to the room through the first fan volute 201 and the first fan air outlet 2012. The indoor air flows sequentially through the second fan air inlet 2021, the second fan volute 202 and the second fan air outlet 2022 back to the room.

[0091] When the fresh air module is in the mixed air mode, the wind blocking component 5 rotates to the second position and the movable baffle is folded to connect the first sub-air cavity 101 with the second sub-air cavity 102. 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 through the second fan air inlet 2021, the second fan air outlet 2022 and the second air duct part 403 in sequence; the fresh air and the indoor air are mixed in the second sub-air cavity 102, and then flow into the room through the first fan air inlet and the first fan air outlet in sequence.

[0092] Optionally, combined Fig.10 As shown, the fresh air module further 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 upward. This is conducive to increasing the outlet height of the fresh air and improving the fresh air effect.

[0093] Optionally, a second filter element is disposed at the second port of the first air guide pipe 7. For example, the second filter element is a HEPA filter.

[0094] Optionally, combined Fig.10 As shown, the fresh air module also includes a second air guide duct 8. The bottom wall of the second air guide duct 8 is provided with a first port, which is connected to the first fan outlet 2012, and the two side ends of the second air guide duct 8 are provided with a second port and a third port. In this way, the uniformity of the fresh air is improved. The second port and the third port of the second air guide duct 8 are both provided with a filter element, for example, a HEPA filter.

[0095] Optionally, the fresh air air conditioner is a cabinet-type fresh air air conditioner.

[0096] Combination Fig. 9 As shown, the cabinet fresh air air conditioner provided by the embodiment of the present disclosure includes a cabinet housing 6 and a fresh air module of any of the above embodiments. A storage space is provided at the lower portion of the cabinet housing 6. Since the cabinet fresh air air conditioner includes the above fresh air module, it also includes the beneficial effects of the fresh air module, which will not be described one by one here.

[0097] Optionally, the cabinet housing 6 is provided with avoidance 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. In this way, fresh air is easily delivered into the room.

[0098] Optionally, the fresh air air conditioner further includes a heating element, and the heating element is used to heat the outdoor fresh air entering the fresh air air conditioner.

[0099] Optionally, the heating element includes a first heating net and a second heating net. The first heating net is arranged at the first outdoor communication port 10321. The fresh air flows through the first heating net arranged at the first outdoor communication port 10321 to uniformly heat the fresh air entering the first sub-wind cavity 101. The second heating net is arranged at the second outdoor communication port 10322. The fresh air flows through the second heating net arranged at the second outdoor communication port 10322 to heat the fresh air entering the second sub-wind cavity 102.

[0100] In a second aspect, an embodiment of the present disclosure provides a control method for a fresh air air conditioner.

[0101] Combination Fig.12 As shown, the control method for the fresh air air conditioner includes:

[0102] S101, the fresh air air conditioner detects the indoor carbon dioxide concentration and particulate matter content.

[0103] S102, the fresh air air conditioner determines an operation strategy of the fresh air air conditioner according to the indoor carbon dioxide concentration and particulate matter content.

[0104] The operation strategy includes operating in one of a two-way fresh air mode, a fresh air mode or a mixed air mode.

[0105] The control method for the fresh air air conditioner provided in the embodiment of the present disclosure can determine an operating strategy that is compatible with the indoor air quality according to the indoor carbon dioxide concentration and particulate matter content, which is conducive to meeting the demand for fresh air exchange in different situations and improving the purification effect of indoor air and the comfort of fresh air.

[0106] It is understandable that the fresh air air conditioner periodically detects the indoor carbon dioxide concentration and particulate matter content, and re-determines the operation strategy of the fresh air air conditioner based on the indoor carbon dioxide concentration and particulate matter content. After the fresh air air conditioner runs for a cycle, the indoor air quality is improved to a certain extent. Re-determining the operation strategy of the fresh air air conditioner based on the indoor carbon dioxide concentration and particulate matter content is conducive to saving energy consumption and improving air supply quality.

[0107] The cycle includes a time cycle. For example, at every preset time interval, the fresh air air conditioner detects the indoor carbon dioxide concentration and particulate matter content.

[0108] Among them, in the two-way fresh air exchange mode, the fresh air air conditioner introduces outdoor fresh air while exhausting indoor air. In the full fresh air mode, the fresh air air conditioner only introduces outdoor fresh air. In the mixed air mode, the fresh air air conditioner mixes outdoor fresh air and indoor air and then sends it into the room.

[0109] Optionally, the fresh air air conditioner determines an operation strategy of the fresh air air conditioner according to the indoor carbon dioxide concentration and particulate matter content, including: when the indoor carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, the fresh air air conditioner determines that the fresh air air conditioner operates in a two-way fresh air exchange mode. When the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to the particulate matter content threshold, the fresh air air conditioner determines that the fresh air air conditioner operates in a fresh air mode or a mixed air mode.

[0110] Here, the carbon dioxide concentration threshold refers to the carbon dioxide concentration value when the indoor air is about to enter a worse environment. Optionally, the carbon dioxide concentration threshold is less than or equal to 1000ppm. For example, the carbon dioxide concentration threshold is 900ppm, 930ppm, 950ppm, 980ppm, 850ppm or 800ppm. When the carbon dioxide concentration exceeds 1000ppm, people will feel that the air is polluted and begin to feel drowsy. By limiting the carbon dioxide concentration threshold to the above range, the user comfort can be improved.

[0111] The particle content threshold refers to the particle content detection value when the indoor air has a certain degree of harm to the human body. Optionally, the particle content threshold is less than or equal to 75μg / m 3 For example, the particle content threshold is 60μg / m 3 , 65 μg / m 3 , 70 μg / m 3 , 73 μg / m 3 , 75 μg / m 3 or 58 μg / m 3 When the particle content exceeds 75μg / m 3 When the air is at least slightly polluted, it will affect human health. By limiting the particle content threshold to the above range, user comfort can be improved and damage to human health can be avoided.

[0112] With this setting, when the carbon dioxide concentration exceeds the standard, the fresh air air conditioner operates in a two-way fresh air exchange mode. The fresh air air conditioner introduces outdoor fresh air while expelling indoor air with excessive carbon dioxide. It can quickly replace the indoor air, reduce the indoor carbon dioxide content, and improve user comfort.

[0113] When the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to the particulate matter content threshold, the indoor air quality can be improved quickly, while reducing the heat / cold discharge and saving energy. Specifically, when the indoor particulate matter content exceeds the standard, the fresh air mode is turned on, and the first fan is used to introduce outdoor fresh air to continuously improve the indoor air quality and ensure the user's comfort. At the same time, the second fan is used to absorb indoor air, and the filter element of the second fan is used to remove particulate matter in the indoor air, and then the filtered indoor air is sent back to the room. Using the second fan to filter the indoor air can not only reduce the particulate matter content in the indoor air and solve the problem of excessive indoor particulate matter content, but also reduce the heat / cold discharge and improve the air conditioning energy efficiency. On the contrary, if the second fan is used to discharge the indoor air, although it can also solve the problem of excessive indoor particulate matter content, the hotter / colder indoor air will be discharged, and a part of the heat / cold will be lost, resulting in an increase in the energy consumption of the air conditioner. Similarly, when the indoor particulate matter content exceeds the standard, the mixed wind mode is turned on, and the first fan is used to introduce outdoor fresh air to continuously improve the indoor air quality and ensure the comfort of users. At the same time, the second fan is used to absorb indoor air, mix it with outdoor fresh air, and then transport it to the room, and the filter element of the first fan is used to remove particulate matter in the indoor air. Using the first fan to filter the indoor air can not only reduce the particulate matter content in the indoor air and solve the problem of excessive indoor particulate matter content, but also reduce the exhaust of heat / cold and improve the energy efficiency of the air conditioner. On the contrary, if the second fan is used to discharge the indoor air, although it can also solve the problem of excessive indoor particulate matter content, the discharge of the hotter / colder indoor air will lose some heat / cold, resulting in increased energy consumption of the air conditioner.

[0114] Combination Fig.14 As shown, the embodiment of the present disclosure provides another control method for a fresh air air conditioner, comprising:

[0115] S201, the fresh air air conditioner detects the indoor carbon dioxide concentration and particulate matter content.

[0116] S202: When the indoor carbon dioxide concentration is greater than or equal to a carbon dioxide concentration threshold, the fresh air air conditioner is determined to operate in a two-way fresh air exchange mode.

[0117] S203, when the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to the particulate matter content threshold, the fresh air air conditioner determines that the fresh air air conditioner operates in a fresh air mode or a mixed air mode.

[0118] The control method for a fresh air air conditioner provided by the embodiment of the present disclosure is that when the carbon dioxide concentration exceeds the standard, the fresh air air conditioner operates in a two-way fresh air exchange mode. The fresh air air conditioner introduces outdoor fresh air while discharging indoor air with excessive carbon dioxide, which can quickly replace the indoor air, reduce the indoor carbon dioxide content, and improve the user's comfort. When the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to the particulate matter content threshold, the indoor air quality can be improved quickly, while reducing the external discharge of heat / cold, saving energy. The control method can determine an operation strategy that matches the indoor air quality based on the indoor carbon dioxide concentration and particulate matter content, which is conducive to meeting the fresh air exchange needs in different situations and improving the purification effect of the indoor air and the comfort of the fresh air.

[0119] In some embodiments, the fresh air air conditioner includes a heating element. When the fresh air air conditioner operates in a two-way fresh air exchange mode, the control method further includes: the fresh air air conditioner obtains the indoor dew point temperature and the outdoor temperature. When the outdoor temperature is lower than the indoor dew point temperature, the fresh air air conditioner controls to turn on the heating element, so as to use the heating element to heat the outdoor fresh air entering the fresh air air conditioner.

[0120] When the outdoor temperature is lower than the indoor dew point temperature, the outdoor fresh air is directly introduced into the room. The colder outdoor fresh air enters the hotter room, which is easy to cause condensation indoors, causing inconvenience to users. The outdoor fresh air entering the fresh air air conditioner is heated by the heating element, so that the temperature of the outdoor fresh air is slightly higher than the indoor dew point temperature, which can avoid condensation indoors due to the replacement of fresh air, reduce the temperature difference between the fresh air and the room, and improve the user experience.

[0121] In some embodiments, when the fresh air air conditioner is operated in winter, determining that the fresh air air conditioner operates in a fresh air mode or a mixed air mode includes: the fresh air air conditioner obtains the indoor dew point temperature and the outdoor temperature. When the outdoor temperature is greater than or equal to the indoor dew point temperature, determining that the fresh air air conditioner operates in a mixed air mode.

[0122] When the outdoor temperature is greater than or equal to the indoor dew point temperature, the air conditioner operates in mixed wind mode, and the fresh air and indoor air are mixed in the second sub-wind chamber and then sent into the room. At this time, the temperature difference between the fresh air and the indoor air is small, and the two are mixed in the second sub-wind chamber, which will not cause condensation in the second sub-wind chamber. At the same time, the indoor air can be used to increase the temperature of the fresh air, which is conducive to reducing the temperature difference between the fresh air and the indoor air and improving the comfort of the fresh air.

[0123] In some embodiments, when the fresh air air conditioner operates in a mixed air mode, the fresh air and indoor air are mixed in the second sub-air chamber and then sent indoors, and the fresh air air conditioner further includes a heating element. When the fresh air air conditioner operates in winter, determining whether the fresh air air conditioner operates in a fresh air mode or a mixed air mode further includes: when the outdoor temperature is lower than the indoor dew point temperature, determining that the fresh air air conditioner operates in a 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 air conditioner to avoid condensation in the second sub-air chamber.

[0124] Such a setting can reduce the temperature difference between the fresh air and the indoor air, improve the comfort of the fresh air, and at the same time, avoid condensation in the second sub-wind chamber, and improve the reliability of the fresh air air conditioner. Specifically, when the outdoor temperature is lower than the indoor dew point temperature, the air conditioner operates in a mixed wind mode, and the fresh air and indoor air are mixed in the second sub-wind chamber and then sent into the room. The indoor air is used to increase the temperature of the fresh air, which is conducive to reducing the temperature difference between the fresh air and the indoor air and improving the comfort of the fresh air. In addition, due to the large temperature difference between the fresh air and the indoor air, the two are directly mixed in the second sub-wind chamber, which will cause condensation in the second sub-wind chamber, posing safety hazards such as electric shock or short circuit. Using a heating element to heat the outdoor fresh air entering the fresh air air conditioner can reduce the temperature difference between the fresh air and the indoor air, avoid condensation in the fresh air module due to mixed air, and help improve the reliability of the fresh air air conditioner.

[0125] Optionally, controlling to turn on the heating element includes: turning on the heating element to heat the outdoor fresh air entering the fresh air air conditioner to a first temperature, wherein the first temperature is greater than or equal to the indoor dew point temperature.

[0126] Here, the first temperature refers to a temperature value at which the outdoor fresh air entering the fresh air air conditioner is less likely to produce condensation.

[0127] When the fresh air air conditioner is in mixed air mode, indoor air and outdoor fresh air are mixed in the second sub-air cavity. The outdoor fresh air with a lower temperature and the indoor air with a higher temperature are mixed in the second sub-air cavity, which will produce condensation in the second sub-air cavity. By heating the outdoor fresh air to the first temperature, condensation in the second sub-air cavity can be avoided, thereby improving the reliability of the fresh air air conditioner. At the same time, it is beneficial to increase the temperature of the mixed air, reduce the temperature difference between the mixed air and the indoor air, and improve the comfort of the fresh air supply.

[0128] For example, when the fresh air air conditioner is running in winter, the indoor dew point temperature is 10° C. and the outdoor temperature is 5° C. When the outdoor temperature is lower than the indoor dew point temperature, the fresh air air conditioner runs in mixed wind mode and controls the heating element to be turned on, and uses the heating element to heat the outdoor fresh air entering the fresh air air conditioner.

[0129] When the fresh air air conditioner is running in winter, the indoor dew point temperature is 10°C and the outdoor temperature is 12°C. When the outdoor temperature is higher than the indoor dew point temperature, the fresh air air conditioner runs in mixed wind mode.

[0130] Optionally, when the fresh air air conditioner is operated in summer, determining whether the fresh air air conditioner operates in the fresh air mode or the mixed air mode includes: obtaining the outdoor dew point temperature and the indoor temperature. When the indoor temperature is greater than or equal to the outdoor dew point temperature, determining that the fresh air air conditioner operates in the mixed air mode. When the indoor temperature is less than the outdoor dew point temperature, determining that the fresh air air conditioner operates in the fresh air mode.

[0131] 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 no condensation will occur when the two meet. At this time, the air conditioner runs in mixed wind mode, and the indoor air and outdoor fresh air are mixed and sent indoors. The indoor air can be used to lower the temperature of the outdoor fresh air and improve the comfort of the fresh air. When the indoor temperature is lower than the outdoor dew point temperature, the temperature difference between the fresh air and the indoor air is large. At this time, if the mixed wind mode is run, condensation is likely to occur in the second sub-wind chamber, causing safety hazards. Therefore, when the indoor temperature is lower than the outdoor dew point temperature, the fresh air air conditioner runs in fresh air mode, introduces outdoor fresh air to quickly update the indoor air, and at the same time can avoid condensation inside the fresh air air conditioner, which is beneficial to improving the reliability of the fresh air air conditioner.

[0132] For example, when the fresh air air conditioner is operated in summer, the outdoor dew point temperature is 30° C. and the indoor temperature is 27° C. When the indoor temperature is lower than the outdoor dew point temperature, the fresh air air conditioner operates in the fresh air mode.

[0133] When the fresh air air conditioner is running in summer, the outdoor dew point temperature is 26°C and the indoor temperature is 27°C. When the indoor temperature is higher than the outdoor dew point temperature, the fresh air air conditioner runs in mixed wind mode.

[0134] Combination Fig.15 As shown, the embodiment of the present disclosure provides another control method for a fresh air air conditioner, comprising:

[0135] S301, the fresh air air conditioner detects the indoor carbon dioxide concentration and particulate matter content.

[0136] S302, when the indoor carbon dioxide concentration is greater than or equal to a carbon dioxide concentration threshold, the fresh air air conditioner determines that the fresh air air conditioner operates in a two-way fresh air exchange mode.

[0137] S303, when the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to the particulate matter content threshold, the fresh air air conditioner is determined to operate in a fresh air mode or a mixed air mode.

[0138] S304: When the fresh air air conditioner is operated in winter, the fresh air air conditioner obtains the indoor dew point temperature and the outdoor temperature.

[0139] S305: When the outdoor temperature is greater than or equal to the indoor dew point temperature, determine that the fresh air air conditioner operates in a mixed air mode.

[0140] S306: When the outdoor temperature is lower than the indoor dew point temperature, determine that the fresh air air conditioner operates in a mixed air mode, and control the heating element to turn on.

[0141] S307, when the fresh air air conditioner is operated in summer, the fresh air air conditioner obtains the outdoor dew point temperature and the indoor temperature.

[0142] S308: When the indoor temperature is greater than or equal to the outdoor dew point temperature, determine that the fresh air air conditioner operates in a mixed air mode.

[0143] S309: When the indoor temperature is lower than the outdoor dew point temperature, determine that the fresh air air conditioner operates in a fresh air mode.

[0144] The control method for the fresh air air conditioner provided in the embodiment of the present disclosure can determine an operating strategy that is compatible with the indoor air quality according to the indoor carbon dioxide concentration and particulate matter content, which is conducive to meeting the demand for fresh air exchange in different situations and improving the purification effect of indoor air and the comfort of fresh air.

[0145] Optionally, the fresh air air conditioner does not perform fresh air exchange when the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is less than the particulate matter content threshold. At this time, the air quality is good and there is no need to exchange fresh air.

[0146] An embodiment of the present disclosure provides a control device for a fresh air air conditioner, including a processor and a memory storing program instructions, and the processor is configured to execute a control method for a fresh air air conditioner as described in any of the above embodiments when running the program instructions.

[0147] Combination Fig.13 As shown, an embodiment of the present disclosure provides a control device for a fresh air air conditioner, including a processor (processor) 800 and a memory (memory) 801. Optionally, the device may also include a communication interface (Communication Interface) 802 and a bus 803. Among them, the processor 800, the communication interface 802, and the memory 801 can communicate with each other through the bus 803. The communication interface 802 can be used for information transmission. The processor 800 can call the logic instructions in the memory 801 to execute the control method for the fresh air air conditioner of the above embodiment.

[0148] In addition, the logic instructions in the memory 801 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0149] The memory 801 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 800 executes the function application and data processing by running the program instructions / modules stored in the memory 801, that is, the control method for the fresh air air conditioner in the above embodiment is implemented.

[0150] The memory 801 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 801 may include a high-speed random access memory and may also include a non-volatile memory.

[0151] The disclosed embodiments provide a fresh air air conditioner, including a fresh air air conditioner body, and the above-mentioned control device for the fresh air air conditioner. The control device for the fresh air air conditioner is installed in the fresh air air conditioner. The installation relationship described here is not limited to placement inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections or signal transmission connections, etc. Those skilled in the art can understand that the device for controlling the fresh air air conditioner can be adapted to a feasible product body, thereby realizing other feasible embodiments.

[0152] The embodiment of the present disclosure provides a storage medium storing program instructions, which, when executed, execute the control method for the fresh air air conditioner. The computer-readable storage medium may be a transient computer-readable storage medium or a non-transient computer-readable storage medium.

[0153] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0154] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0155] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

Claims

1. A fresh air air conditioner, characterized in that: include: The module housing is configured with a first sub-wind cavity and a second sub-wind cavity respectively connected to the outdoors, and the first sub-wind cavity can be separated from or connected to the second sub-wind cavity; A fan assembly, comprising a first fan air inlet capable of communicating with the second sub-wind cavity, a first fan air outlet communicating with the room, a second fan air inlet communicating with the room, and a second fan air outlet capable of communicating with the first sub-wind cavity, the second sub-wind cavity or the room; The control module is configured to control the connection and separation between the second fan outlet and the first sub-wind cavity, the second sub-wind cavity or the room, and the separation or connection between the first sub-wind cavity and the second sub-wind cavity according to the operation strategy of the fresh air air conditioner.

2. The fresh air air conditioner according to claim 1, characterized in that: The operation strategy of the fresh air air conditioner includes a two-way fresh air exchange mode, a fresh air mode and a mixed air mode; the control module is configured as follows: When the two-way fresh air exchange mode is in operation, the air outlet of the second fan is controlled to be connected to the first sub-air cavity, and the first sub-air cavity is separated from the second sub-air cavity; When running in the fresh air mode, the air outlet of the second fan is controlled to be connected to the indoor room, and the first sub-air cavity is connected to the second sub-air cavity; When operating in the mixed wind mode, the air outlet of the second fan is controlled to be connected to the second sub-wind cavity, and the first sub-wind cavity is controlled to be connected to the second sub-wind cavity.

3. A control method for the fresh air air conditioner according to claim 1 or 2, characterized in that: include: Detect indoor carbon dioxide concentration and particulate matter content; Determine the operation strategy of the fresh air air conditioner based on the indoor carbon dioxide concentration and particulate matter content; Wherein, the operation strategy includes operating in one of a two-way fresh air mode, a fresh air mode or a mixed air mode.

4. The control method according to claim 3, characterized in that: According to the indoor carbon dioxide concentration and particulate matter content, determine the operation strategy of the fresh air air conditioner, including: When the indoor carbon dioxide concentration is greater than or equal to the carbon dioxide concentration threshold, the fresh air air conditioner is determined to operate in a two-way fresh air exchange mode; When the indoor carbon dioxide concentration is less than the carbon dioxide concentration threshold and the indoor particulate matter content is greater than or equal to the particulate matter content threshold, it is determined that the fresh air air conditioner operates in the fresh air mode or the mixed air mode.

5. The control method according to claim 4, characterized in that: When the fresh air air conditioner is operated in winter, determining whether the fresh air air conditioner operates in a fresh air mode or a mixed air mode includes: Get indoor dew point temperature and outdoor temperature; When the outdoor temperature is greater than or equal to the indoor dew point temperature, the fresh air air conditioner is determined to operate in mixed air mode.

6. The control method according to claim 5, characterized in that: When the fresh air air conditioner operates in a mixed air mode, the fresh air and the indoor air are mixed in the second sub-air chamber and then sent into the room. The fresh air air conditioner also includes a heating element; When the fresh air air conditioner is operated in winter, the step of determining whether the fresh air air conditioner operates in a fresh air mode or a mixed air mode further includes: When the outdoor temperature is lower than the indoor dew point temperature, the fresh air air conditioner is determined to operate in mixed air mode, and the heating element is controlled to be turned on, so as to heat the outdoor fresh air entering the fresh air air conditioner by the heating element to avoid condensation in the second sub-air cavity.

7. The control method according to claim 6, characterized in that: The controlling and starting of the heating element comprises: The heating element is turned on to heat the outdoor fresh air entering the fresh air air conditioner to a first temperature; wherein the first temperature is greater than or equal to the indoor dew point temperature.

8. The control method according to any one of claims 4 to 6, characterized in that: When the fresh air air conditioner is operated in summer, determining whether the fresh air air conditioner operates in a fresh air mode or a mixed air mode includes: Get the outdoor dew point temperature and indoor temperature; When the indoor temperature is greater than or equal to the outdoor dew point temperature, the fresh air air conditioner is determined to operate in mixed air mode; When the indoor temperature is lower than the outdoor dew point temperature, the fresh air air conditioner is determined to operate in the fresh air mode.

9. A control device for a fresh air air conditioner, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for a fresh air air conditioner as described in any one of claims 3 to 8 when running the program instructions.

10. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the control method for the fresh air air conditioner according to any one of claims 3 to 8 is executed.

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