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

Abstract

The application 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 are respectively communicated with the outside, the first sub-air cavity can be separated from or communicated with the second sub-air cavity, a fan assembly, a first fan air inlet which can be communicated with the second sub-air cavity, a first fan air outlet which is communicated with the inside, a second fan air inlet which is communicated with the inside, and a second fan air outlet which can be communicated with the first sub-air cavity, the second sub-air cavity or the inside, and a control module which is configured to control the communication and separation of the second fan air outlet with the first sub-air cavity, the second sub-air cavity or the inside according to the operation strategy of the fresh air conditioner, and the separation or communication of the first sub-air cavity with the second sub-air cavity. The fresh air conditioner can be combined into multiple fresh air air paths, thereby meeting the fresh air replacement demand under different conditions. The application further discloses a control method, a control device and a storage medium for the fresh air conditioner.

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, control device and storage medium thereof. BACKGROUND

[0002] With people's increasing attention to air quality problems, users also have higher and higher requirements for the air quality in living rooms, bedrooms and other daily indoor environments. There are many factors that cause the decline of indoor air quality, for example, volatile formaldehyde, benzene and ammonia air pollutants from indoor decoration materials, or the accumulation of a large amount of harmful gases such as carbon dioxide and formaldehyde in the indoor environment due to the closed doors and windows at night. Such air quality problems will more or less affect the health status of users in the indoor environment, such as inducing users to have symptoms such as chest tightness, shortness of breath, dry mouth and throat, and difficulty breathing.

[0003] One of the effective methods to solve the above air quality problems is to maintain the ventilation between indoor and outdoor environments, and to introduce fresh outdoor air into 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 emerges as the times require. The fresh air air conditioner adds components such as a fresh air module and a fresh air pipe to the traditional air conditioner model, and uses a fan to suck fresh outdoor air into the indoor environment to improve the indoor air quality.

[0004] The related art provides a fresh air module with outdoor fresh air and indoor exhaust air functions. The fresh air module periodically switches to introduce fresh air into the indoor environment in one cycle and to exhaust air to the outdoor environment in another cycle, thereby realizing a "breathing" air purification mode.

[0005] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist 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, and cannot meet the fresh air replacement requirements in different situations.

[0007] 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

[0008] To have a basic understanding of some aspects of the disclosed embodiments, a brief overview is given below. The overview is not a general review, nor is it intended to determine key / important constituent elements or delineate the scope of protection of these embodiments, but is intended as a prelude to the detailed description below.

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

[0010] In some embodiments, the fresh air conditioner comprises: a module housing configured with a first sub-air cavity and a second sub-air cavity respectively in communication with the outside, the first sub-air cavity being able to be separated or communicated with the second sub-air cavity; a fan assembly comprising a first fan air inlet capable of being communicated with the second sub-air cavity, a first fan air outlet communicated with the indoor, a second fan air inlet communicated with the indoor, and a second fan air outlet capable of being communicated with the first sub-air cavity, the second sub-air cavity or the indoor; and a control module configured to control the communication and separation of the second fan air outlet with the first sub-air cavity, the second sub-air cavity or the indoor, and the separation or communication of the first sub-air cavity with the second sub-air cavity according to the operation strategy of the fresh air conditioner.

[0011] In some embodiments, the operation strategy of the fresh air conditioner comprises a bidirectional fresh air replacement mode, a full fresh air mode and a mixed air mode; and the control module is configured to control the second fan air outlet to be communicated with the first sub-air cavity and the first sub-air cavity to be separated from the second sub-air cavity when the bidirectional fresh air replacement mode is operated, control the second fan air outlet to be communicated with the indoor and the first sub-air cavity to be communicated with the second sub-air cavity when the full fresh air mode is operated, and control the second fan air outlet to be communicated with the second sub-air cavity and the first sub-air cavity to be communicated with the second sub-air cavity when the mixed air mode is operated.

[0012] In some embodiments, the control method for the fresh air conditioner comprises: detecting the carbon dioxide concentration and the particulate matter content in the indoor; and determining the operation strategy of the fresh air conditioner according to the carbon dioxide concentration and the particulate matter content in the indoor; wherein the operation strategy comprises one of the bidirectional fresh air replacement mode, the full fresh air mode or the mixed air mode.

[0013] In some embodiments, determining the operation strategy of the fresh air conditioner according to the carbon dioxide concentration and the particulate matter content in the indoor comprises: determining the fresh air conditioner to operate in the bidirectional fresh air replacement mode when the carbon dioxide concentration in the indoor is greater than or equal to a carbon dioxide concentration threshold; and determining the fresh air conditioner to operate in the full fresh air mode or the mixed air mode when the carbon dioxide concentration in the indoor is less than the carbon dioxide concentration threshold and the particulate matter content in the indoor is greater than or equal to a particulate matter content threshold.

[0014] In some embodiments, the fresh air conditioner comprises a heating element, and the control method further comprises: obtaining the indoor dew point temperature and the outdoor temperature when the fresh air conditioner operates in the bidirectional fresh air replacement mode; and controlling the heating element to be turned on to heat the outdoor fresh air entering the fresh air conditioner by the heating element when the outdoor temperature is less than the indoor dew point temperature.

[0015] In some embodiments, when the fresh air conditioner is running in winter, the determining that the fresh air conditioner runs the full fresh air mode or the mixed air mode comprises: obtaining an indoor dew point temperature and an outdoor temperature; and in a case where the outdoor temperature is greater than or equal to the indoor dew point temperature, determining that the fresh air conditioner runs the mixed air mode.

[0016] In some embodiments, when the fresh air conditioner runs in the mixed air mode, the fresh air and the indoor air are mixed in the second sub-air cavity and then sent into the indoor, and the fresh air conditioner further comprises a heating element; when the fresh air conditioner is running in winter, the determining that the fresh air conditioner runs the full fresh air mode or the mixed air mode further comprises: in a case where the outdoor temperature is less than the indoor dew point temperature, determining that the fresh air conditioner runs the mixed air mode, and controlling the heating element to be turned on to heat the outdoor fresh air entering the fresh air conditioner by using the heating element, so as to avoid dew condensation in the second sub-air cavity.

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

[0018] In some embodiments, when the fresh air conditioner is running in summer, the determining that the fresh air conditioner runs the full fresh air mode or the mixed air mode comprises: obtaining an outdoor dew point temperature and an indoor temperature; in a case where the indoor temperature is greater than or equal to the outdoor dew point temperature, determining that the fresh air conditioner runs the mixed air mode; and in a case where the indoor temperature is less than the outdoor dew point temperature, determining that the fresh air conditioner runs the full fresh air mode.

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

[0020] In some embodiments, a storage medium stores program instructions, the program instructions execute a control method for a fresh air conditioner as described above when running.

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

[0022] The fresh air conditioner provided by the embodiments of the present disclosure can be combined into multiple fresh air air paths by controlling the communication and separation of the second air fan outlet with the first sub-air cavity, the second sub-air cavity or the indoor, and the separation or communication of the first sub-air cavity and the second sub-air cavity, so as to meet the fresh air replacement demand in different situations.

[0023] The control method for a fresh air air conditioner provided by the embodiments of the present disclosure can determine an operation strategy suitable for the air quality in the room according to the carbon dioxide concentration and particulate matter content in the room, which is beneficial to meet the fresh air replacement demand in different situations and improve the purification effect on indoor air and the comfort of fresh air.

[0024] The foregoing general description and the following description are merely exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and are not intended to be limiting of the embodiments, in which like reference numerals refer to like elements in the various figures of the drawings, the drawings are not intended to be to scale and in which:

[0026] Figure 1 is a structural schematic diagram of a fresh air module provided by the embodiments of the present disclosure;

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

[0028] Figure 2B is Figure 2A a structural schematic diagram from another angle;

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

[0030] Figure 3B is Figure 3A a structural schematic diagram from another angle;

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

[0032] Figure 5 is a structural schematic diagram of a fresh air pipe provided by the embodiments of the present disclosure;

[0033] Figure 6 is a structural schematic diagram of a lower shell provided by the embodiments of the present disclosure;

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

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

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

[0037] Figure 10 is another structural schematic view of a fresh air module provided by an embodiment of the present disclosure;

[0038] Figure 11 is a partial structural schematic view of a fresh air module provided by an embodiment of the present disclosure;

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

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

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

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

[0043] Reference signs:

[0044] 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 block 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; 9, control module. DETAILED DESCRIPTION

[0045] 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 is described in detail below, and the accompanying drawings are used for reference only 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 sufficient understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0046] 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 used in this way 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.

[0047] Unless otherwise specified, the term "a plurality of" means two or more.

[0048] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B represents: A or B.

[0049] 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, which means: A or B, or, A and B, three relationships.

[0050] The term "corresponding" can refer to an association or binding relationship. A and B correspond to each other means that A and B have an association or binding relationship.

[0051] In a first aspect, the embodiments of the present disclosure provide a fresh air conditioner.

[0052] In combination Figures 1 to 4 , and Figure 9 As shown, the fresh air conditioner provided by the embodiments of the present disclosure includes a fresh air module. The fresh air module includes a module shell 1, a fan assembly 2, and a control module 9.

[0053] The module shell 1 is configured with an air cavity, and the air cavity includes a first sub-air cavity 101 and a second sub-air cavity 102 respectively communicating with the outside. The first sub-air cavity 101 can be separated or communicated with the second sub-air cavity 102.

[0054] 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 capable of communicating with the first sub-air cavity 101, the second sub-air cavity 102 or the indoor. The control module is configured to control the communication and separation of the second fan air outlet with the first sub-air cavity, the second sub-air cavity or the indoor, and the separation or communication of the first sub-air cavity with the second sub-air cavity according to the operation strategy of the fresh air conditioner.

[0055] The fresh air conditioner provided by the embodiments of the present disclosure can be combined into various fresh air air paths by controlling the communication and separation of the second fan air outlet with the first sub-air cavity, the second sub-air cavity or the indoor, and the separation or communication of the first sub-air cavity with the second sub-air cavity, so as to meet the fresh air replacement demand under different conditions.

[0056] In some embodiments, the operation strategy of the fresh air conditioner comprises a bidirectional fresh air replacement mode, a full fresh air mode and a mixed air mode. In the bidirectional fresh air replacement mode, the fresh air conditioner introduces outdoor fresh air while discharging indoor air; in the full fresh air mode, the fresh air conditioner only introduces outdoor fresh air; and in the mixed air mode, the fresh air conditioner mixes outdoor fresh air and indoor air and sends them into the indoor.

[0057] In some embodiments, in the bidirectional fresh air replacement mode, the control module 9 controls the second fan air outlet 2022 to communicate with the first sub-air cavity 101, and the first sub-air cavity 101 to separate from the second sub-air cavity 102. The outdoor fresh air is sequentially transported to the indoor through the second sub-air cavity 102, the first fan air inlet 2011 and the first fan air outlet 2012. 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. In this way, the fresh air module can introduce outdoor fresh air and discharge indoor air at the same time, which is beneficial to improve the air purification efficiency.

[0058] 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.

[0059] 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 fresh air replacement is realized in cooperation with other structures.

[0060] 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 ranges from 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.

[0061] In this way, the amount of fresh air introduced by the fresh air module is slightly greater than the exhaust amount, so that the indoor environment can be kept at a slight positive pressure. Since most of the indoor environment is not completely sealed, under the action of the slight positive pressure, outdoor air that has not been filtered can be prevented from directly entering the indoor environment through gaps such as doors and windows.

[0062] 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.

[0063] In some embodiments, the fresh air module further includes a full fresh air mode. In the full fresh air mode, the control module 9 controls the second fan air outlet 2022 to communicate with the indoor environment, and the first sub-air cavity 101 and the second sub-air cavity 102 communicate. 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 conveyed to the indoor environment 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 environment.

[0064] 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 fresh air 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 of the indoor environment, which is conducive to quickly improving the air quality of the indoor environment while reducing the external discharge of heat / cold and saving energy.

[0065] For example, when the content of particulate matter in the indoor environment exceeds the standard, the full fresh air mode is started, outdoor fresh air is introduced by the first fan, and the air quality in the indoor environment is continuously improved to ensure the comfort of the user. At the same time, the second fan is used to suck indoor air, 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 indoor environment. By filtering the indoor air with the second fan, the content of particulate matter in the indoor air can be reduced, the problem of excessive content of particulate matter in the indoor environment can be solved, and the external discharge of heat / cold can be reduced, thereby improving the energy efficiency of the air conditioner.

[0066] Conversely, if the indoor air is discharged by the second fan, although the problem of excessive indoor particulate matter content can be solved, the discharge of relatively hot / cold indoor air will result in loss of a portion of the heat / cold, leading to increased energy consumption of the air conditioner.

[0067] In some embodiments, the fresh air module further comprises a mixed air mode. In the mixed air mode, the control module 9 controls the second fan air outlet 2022 to communicate with the second sub-air cavity 102, and the first sub-air cavity 101 communicates with the second sub-air cavity 102, wherein a portion of the fresh air enters the second sub-air cavity 102 through the first sub-air cavity 101, and another portion 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 and the second fan air outlet 2022; after the fresh air and the indoor air are mixed in the second sub-air cavity 102, they flow to the indoor space in sequence through the first fan air inlet and the first fan air outlet.

[0068] 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 fresh air replacement mode can be formed, facilitating the switching of 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 indoor air quality, while reducing the discharge of heat / cold, reducing the temperature difference between the fresh air and the indoor space, and improving the comfort of the fresh air.

[0069] In some embodiments, in combination with Figure 2A and Figure 11 As shown in Figs. 1-3, 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 inside the air cover and a second sub-air cavity 102 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.

[0070] 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 rest of the 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 fresh air replacement mode. In addition, in the bidirectional fresh air replacement mode, the first sub-air cavity 101 flows with indoor air, and the second sub-air cavity 102 flows with outdoor fresh air, and 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, recovery of heat from the indoor air, reduction of the temperature difference between the outdoor fresh air and the indoor space, and improvement of the comfort of the fresh air.

[0071] For the wind box 103, the wind box 103 comprises a first wind box wall 1031 away from the fan assembly, the first wind box wall 1031 is configured with a through hole 1032.

[0072] The wind box further comprises a wind box bottom wall 1033, the wind box bottom wall 1033 is configured with a first bottom wall opening 1034 and a second bottom wall opening 1035. The shroud 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.

[0073] For the shroud 104, in combination with Figure 11 As shown, the shroud 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 respectively connected with the two side ends of the upper end plate, and the side ends close to the fan assembly 2 are connected with the movable plate body 1041. The various plate bodies of the shroud and the wind box bottom wall 1033 and the first wind box wall 1031 are enclosed to define the first sub-wind cavity 101.

[0074] Optionally, the shroud 104 further comprises 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 connected with the first wind box wall 1031 perpendicularly, and the first side plate 1042 passes through the through hole 1032, which divides 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, so as to separate or communicate the first sub-wind cavity 101 and the second sub-wind cavity 102.

[0075] 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 by the position design of the first side plate 1042, that is, the first sub-air cavity 101 and the second sub-air 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 for cooperating with the fresh air pipe, and the air inlet and outlet requirements of the first sub-air cavity 101 and the second sub-air cavity 102 are met by a single fresh air pipe. The wind cover is arranged in the second sub-air cavity 102, and the movable plate body 1041 is arranged on the wind cover 104. By rotating the movable plate body 1041 and changing the position of the movable plate body 1041, the communication or separation of the first sub-air cavity 101 and the second sub-air cavity 102 can be realized, and the structure is simple and easy to realize.

[0076] Optionally, the first wind box wall is configured with the first outdoor communication port 10321 corresponding to the first sub-air cavity 101, and the second outdoor communication port 10322 corresponding to the second sub-air cavity 102. Figure 5 As shown, the fresh air module further includes a fresh air pipe 3, and an axial extension partition plate 301 is arranged in the fresh air pipe 3. The partition plate 301 divides the internal space of the fresh air pipe into a first pipe internal air duct and a second pipe internal air duct. The first pipe internal air duct is in communication with the first outdoor communication port 10321, and the second pipe internal air duct is in communication with the second outdoor communication port 10322.

[0077] In this way, 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 fresh air pipe, which is conducive to reducing the number of wall openings.

[0078] Optionally, the material of the partition plate 301 is a heat-conducting material, so that the gases in the first pipe internal air duct and the second pipe internal air duct can exchange heat. In this way, the heat / cold in the discharged indoor gas can be recovered, and the discharged indoor gas is used 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 with Figure 1 , Figure 4 and Figure 6 , the module shell 1 further includes a lower shell 4 and a wind blocking assembly 5.

[0080] The lower shell 4 includes a connecting part 401, a first air duct part 402, and a second air duct part 403. The connecting part 401 is in communication with the second fan air outlet 2022, and the connecting part 401 is configured with a first indoor air outlet 4011, a first communication hole, and a second communication hole. The first end of the first air duct part 402 is in communication with the first communication hole, and the second end is in communication with the first bottom wall opening 1034. The first end of the second air duct part 403 is in communication with the second communication hole, and the second end is in communication with the second bottom wall opening 1035.

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

[0082] By arranging the first air duct portion 402, the first sub-air cavity 101 and the second air fan outlet 2022 are communicated. By arranging the second air duct portion 403, the second sub-air cavity 102 and the second air fan outlet are communicated. By arranging the wind blocking assembly 5, the communication state of the second air fan outlet 2022 is switched, and the communication state of the first sub-air cavity and the second sub-air cavity is switched, so that different air path communication states corresponding to the mixed air mode, the all fresh air mode and the bidirectional fresh air mode are formed.

[0083] Optionally, the first communication hole is arranged at the first end of the connecting portion 401, the second air fan outlet 2022 is communicated with the first end of the connecting portion 401, and the first indoor air outlet 4011 and the second communication hole are arranged at the second end of the connecting portion 401.

[0084] Optionally, in combination with Figure 7 and Figure 8 The wind blocking assembly 5 includes a fixed baffle 501 and a rotating piece 502.

[0085] The fixed baffle 501 is arranged inside the connecting portion 401 and located at the middle portion of the connecting portion 401. The fixed baffle 501 includes two straight-angle sectors which are connected at both ends and symmetrical at the center. The arc-shaped end faces of the two straight-angle sectors are fixedly connected with the inner wall of the connecting portion 401 respectively. The fixed baffle 501 and the inner wall of the connecting portion 401 enclose a gap which has the same shape as the fixed baffle 501.

[0086] The rotating member 502 is arranged inside the connecting portion 401 and located at the side of the fixed baffle 501 close to the first indoor air outlet 4011. The rotating member 502 comprises 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 at 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 gap and a second fan-shaped gap, and the arc-shaped side plate 5023 comprises an arc-shaped end face close to the end plate 5022, which coincides with the arc-shaped contour of the first fan-shaped gap.

[0087] In combination with the structure A shown in Figure 8 , when the air block assembly 5 rotates to the first position, the end plate 5022 coincides with the gap to simultaneously block the second communication hole and the first indoor air outlet. In combination with the structure B shown in Figure 8 , when the air block assembly 5 rotates 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 communication hole. In combination with the structure C shown in Figure 8 , when the air block assembly 5 rotates to the third position, the end plate 5022 coincides with the fixed baffle 501, and the arc-shaped side plate 5023 corresponds to the second communication hole to block the second communication hole and avoid the first indoor air outlet 4011.

[0088] In some embodiments, in combination with Figure 3A and Figure 3B , the fan assembly 2 further comprises a fan partition, a first fan wheel, a second fan wheel and a double-shaft motor. The first fan volute 201 and the second fan volute 202 are arranged at 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 double-shaft motor comprises a first output shaft and a second output shaft, the first output shaft extends into the first fan volute 201 and is fixedly connected with the first fan wheel, and the second output shaft extends into the second fan volute 202 and is fixedly connected with the second fan wheel.

[0089] Exemplarily, when the fresh air module is in the bidirectional fresh air exchange mode, the air block 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. The outdoor fresh air is sequentially conveyed to the indoor through the second sub-air cavity 102, the first fan air inlet 2011 and the first fan air outlet 2012. The indoor air is sequentially discharged to the outdoor 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 full fresh air mode, the wind blocking assembly 5 is rotated to the third position, and the movable baffle is folded to make the first sub-air cavity 101 and the second sub-air cavity 102 communicate. Fresh air enters the first sub-air cavity 101 and the second sub-air cavity 102, and then enters the first fan air inlet 2011 in sequence, and is then transported to the indoor environment through the first fan volute 201 and the first fan air outlet 2012 in sequence. 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 then returns to the indoor environment.

[0091] When the fresh air module is in the mixed air mode, the wind blocking assembly 5 is rotated to the second position, and the movable baffle is folded to make the first sub-air cavity 101 and the second sub-air cavity 102 communicate. 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; 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; after the fresh air and the indoor air are mixed in the second sub-air cavity 102, they flow to the indoor environment through the first fan air inlet and the first fan air outlet in sequence.

[0092] Optionally, in combination with Figure 10 As shown in the figure, the fresh air module further includes a first air guide pipe 7. The first port of the first air guide pipe 7 is in communication with the first indoor air outlet 4011, and the second port of the first air guide pipe 7 extends upward. In this way, it is beneficial to increase the height of the fresh air outlet and improve the fresh air effect.

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

[0094] Optionally, in combination with Figure 10 As shown in the figure, the fresh air module further includes a second air guide pipe 8. The bottom wall of the second air guide pipe 8 is provided with a first port, the first port is in communication with the first fan air outlet 2012, and the two side ends of the second air guide pipe 8 are provided with a second port and a third port. In this way, it is beneficial to improve the uniformity of the fresh air. The second port and the third port of the second air guide pipe 8 are both provided with a filter element, for example, a HEPA filter.

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

[0096] In combination with Figure 9 As shown in the figure, the cabinet type fresh air conditioner provided by the embodiment of the present disclosure includes a cabinet machine shell 6 and the fresh air module of any one of the above embodiments. The lower part of the cabinet machine shell 6 is provided with a containing space. Based on the fact that the cabinet type fresh air conditioner includes the above-mentioned fresh air module, it also includes the beneficial effects of the fresh air module, which will not be repeated here.

[0097] Optionally, the cabinet machine shell 6 is provided with a relief hole corresponding to the second port of the first air guide pipe 7, the second port of the second air guide pipe 8, and the third port of the second air guide pipe 8. In this way, the fresh air is conveniently sent into the room.

[0098] Optionally, the fresh air conditioner further comprises a heating element for heating the outdoor fresh air entering the fresh air conditioner.

[0099] Optionally, the heating element comprises 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, the embodiments of the present disclosure provide a control method for a fresh air conditioner.

[0101] In combination Figure 12 As shown in the drawings, the control method for the fresh air conditioner comprises the following steps.

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

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

[0104] The operation strategy comprises one of a bidirectional fresh air replacement mode, a full fresh air mode, or a mixed air mode.

[0105] The control method for the fresh air conditioner provided by the embodiments of the present disclosure can determine an operation strategy suitable for the air quality in the room according to the carbon dioxide concentration and particulate matter content in the room, which is beneficial to meet the fresh air replacement demand in different situations and improve the purification effect of indoor air and the comfort of fresh air.

[0106] It can be understood that the fresh air conditioner periodically detects the carbon dioxide concentration and particulate matter content in the room, and re-determines the operation strategy of the fresh air conditioner according to the carbon dioxide concentration and particulate matter content in the room. After the fresh air conditioner operates for a period, the air quality in the room is improved to a certain extent, and the operation strategy of the fresh air conditioner is re-determined according to the carbon dioxide concentration and particulate matter content in the room, which is beneficial to save energy consumption and improve the air supply quality.

[0107] The period comprises a time period. For example, the fresh air conditioner detects the carbon dioxide concentration and particulate matter content in the room every interval of a preset time.

[0108] In the bidirectional fresh air exchange mode, the fresh air conditioner introduces outdoor fresh air while discharging indoor air. In the full fresh air mode, the fresh air conditioner only introduces outdoor fresh air. In the mixed air mode, the fresh air conditioner sends indoor air mixed with outdoor fresh air into the room.

[0109] Optionally, the fresh air conditioner determines the operation strategy of the fresh air conditioner according to the carbon dioxide concentration and the particulate matter content in the room, including: the fresh air conditioner determines the bidirectional fresh air exchange mode when the carbon dioxide concentration in the room is greater than or equal to the carbon dioxide concentration threshold. The fresh air conditioner determines the full fresh air mode or the mixed air mode when the carbon dioxide concentration in the room is less than the carbon dioxide concentration threshold and the particulate matter content in the room is greater than or equal to the particulate matter content threshold.

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

[0111] The particulate matter content threshold refers to the particulate matter content detection value when the indoor air is harmful to the human body to a certain extent. Optionally, the particulate matter content threshold is less than or equal to 75 μg / m 3 . For example, the particulate matter content threshold is 60 μg / m 3 , 65 μg / m 3 , 70 μg / m 3 , 73 μg / m 3 , 75 μg / m 3 , or 58 μg / m 3 , etc. When the particulate matter content exceeds 75 μg / m 3 , the air is at least lightly polluted and will affect human health. By limiting the particulate matter content threshold to the above range, the user's comfort can be improved and the harm to human health can be avoided.

[0112] In this way, in the case of excessive carbon dioxide concentration, the fresh air conditioner operates in the bidirectional fresh air exchange mode, and the fresh air conditioner introduces outdoor fresh air while discharging indoor air with excessive carbon dioxide, which can quickly replace indoor air, reduce indoor carbon dioxide content, and improve user comfort.

[0113] In the case that the carbon dioxide concentration in the room is less than the carbon dioxide concentration threshold value and the particulate matter content in the room is greater than or equal to the particulate matter content threshold value, the indoor air quality can be improved faster, and the heat / cold discharge is reduced to save energy. Specifically, when the particulate matter content in the room exceeds the standard, the full fresh air mode is started, and the outdoor fresh air is introduced by the first fan to continuously improve the indoor air quality and ensure the comfort of the user. At the same time, the indoor air is sucked by the second fan, the particulate matter in the indoor air is removed by the filter of the second fan, and then the filtered indoor air is sent back to the room. The indoor air is filtered by the second fan, which not only reduces the particulate matter content in the indoor air and solves the problem of excessive particulate matter content in the room, but also reduces the heat / cold discharge and improves the energy efficiency of the air conditioner. Conversely, if the indoor air is discharged by the second fan, although the problem of excessive particulate matter content in the room can be solved, the hot / cold indoor air is discharged, which will lose a part of the heat / cold and increase the energy consumption of the air conditioner. Similarly, when the particulate matter content in the room exceeds the standard, the mixed air mode is started, and the outdoor fresh air is introduced by the first fan to continuously improve the indoor air quality and ensure the comfort of the user. At the same time, the indoor air is sucked by the second fan, mixed with the outdoor fresh air, and then delivered to the room, and the particulate matter in the indoor air is removed by the filter of the first fan. The indoor air is filtered by the first fan, which not only reduces the particulate matter content in the indoor air and solves the problem of excessive particulate matter content in the room, but also reduces the heat / cold discharge and improves the energy efficiency of the air conditioner. Conversely, if the indoor air is discharged by the second fan, although the problem of excessive particulate matter content in the room can be solved, the hot / cold indoor air is discharged, which will lose a part of the heat / cold and increase the energy consumption of the air conditioner.

[0114] In combination Figure 14 As shown in FIG. 1, the present disclosure provides another control method for a fresh air air conditioner, which comprises the following steps.

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

[0116] In S202, the fresh air air conditioner determines that the fresh air air conditioner runs the bidirectional fresh air replacement mode in the case that the carbon dioxide concentration in the room is greater than or equal to the carbon dioxide concentration threshold value.

[0117] In S203, the fresh air air conditioner determines that the fresh air air conditioner runs the full fresh air mode or the mixed air mode in the case that the carbon dioxide concentration in the room is less than the carbon dioxide concentration threshold value and the particulate matter content in the room is greater than or equal to the particulate matter content threshold value.

[0118] The control method for the fresh air air conditioner provided by the embodiments of the present disclosure can make the fresh air air conditioner run in the bidirectional fresh air replacement mode when the carbon dioxide concentration exceeds the threshold, introduce outdoor fresh air into the room, and discharge indoor air with excessive carbon dioxide, so that the indoor air can be quickly replaced, the carbon dioxide content in the room is reduced, and the comfort of the user is improved. When the carbon dioxide concentration in the room is less than the carbon dioxide concentration threshold and the particulate matter content in the room is greater than or equal to the particulate matter content threshold, the indoor air quality can be improved quickly, and the heat / cold discharge is reduced, thereby saving energy. The control method can determine an operation strategy suitable for the air quality in the room according to the carbon dioxide concentration and the particulate matter content in the room, so as to meet the fresh air replacement demand in different situations and improve the purification effect of the indoor air and the comfort of the fresh air.

[0119] In some embodiments, the fresh air air conditioner comprises a heating element. When the fresh air air conditioner runs in the bidirectional fresh air replacement mode, the control method further comprises: the fresh air air conditioner obtaining the indoor dew point temperature and the outdoor temperature. When the outdoor temperature is less than the indoor dew point temperature, the fresh air air conditioner controls the heating element to be turned on to heat the outdoor fresh air entering the fresh air air conditioner by using the heating element.

[0120] When the outdoor temperature is less than the indoor dew point temperature, the outdoor fresh air is directly introduced into the room, and the relatively cold outdoor fresh air enters the relatively hot room, which is easy to cause condensation in the room and bring inconvenience to the user. By heating the outdoor fresh air entering the fresh air air conditioner by using the heating element, the temperature of the outdoor fresh air is slightly higher than the indoor dew point temperature, which can avoid the condensation caused by the fresh air replacement in the room, reduce the temperature difference between the fresh air and the indoor air, and improve the user experience.

[0121] In some embodiments, when the fresh air air conditioner runs in winter, determining that the fresh air air conditioner runs in the full fresh air mode or the mixed air mode comprises: the fresh air air conditioner 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, it is determined that the fresh air air conditioner runs in the mixed air mode.

[0122] When the outdoor temperature is greater than or equal to the indoor dew point temperature, the air conditioner runs in the mixed air mode, the fresh air and the indoor air are mixed in the second sub-air cavity 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-air cavity, which will not cause condensation in the second sub-air cavity. 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 conditioner operates in the mixed air mode, the fresh air and the indoor air are mixed in the second sub-air cavity and then sent into the indoor space, and the fresh air conditioner further comprises a heating element. When the fresh air conditioner operates in winter, the fresh air conditioner is determined to operate in the full fresh air mode or the mixed air mode, and further comprises: in the case that the outdoor temperature is less than the indoor dew point temperature, the fresh air conditioner is determined to operate in the mixed air mode, and the heating element is controlled to be turned on to heat the outdoor fresh air entering the fresh air conditioner by using the heating element, so as to avoid the generation of condensation in the second sub-air cavity.

[0124] In this way, the temperature difference between the fresh air and the indoor air can be reduced, the comfort of the fresh air can be improved, and the reliability of the fresh air conditioner can be improved. Specifically, in the case that the outdoor temperature is less than the indoor dew point temperature, the air conditioner operates in the mixed air mode, the fresh air and the indoor air are mixed in the second sub-air cavity and then sent into the indoor space, and the temperature of the fresh air is increased by using the indoor air, which is beneficial to reduce the temperature difference between the fresh air and the indoor air and improve the comfort of the fresh air. In addition, since the temperature difference between the fresh air and the indoor air is large, the direct mixing of the two in the second sub-air cavity will cause condensation in the second sub-air cavity, which will cause safety hazards such as electric shock or short circuit. The heating element is used to heat the outdoor fresh air entering the fresh air conditioner, which can reduce the temperature difference between the fresh air and the indoor air, avoid the generation of condensation in the fresh air module due to the mixing of the fresh air, and improve the reliability of the fresh air conditioner.

[0125] Optionally, the control of turning on the heating element comprises: turning on 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.

[0126] Here, the first temperature refers to a temperature value at which the possibility of condensation of the outdoor fresh air entering the fresh air conditioner is low.

[0127] When the fresh air conditioner operates in the mixed air mode, the indoor air and the outdoor fresh air are mixed in the second sub-air cavity, and 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 cause condensation in the second sub-air cavity. By heating the outdoor fresh air to the first temperature, the generation of condensation in the second sub-air cavity can be avoided, and the reliability of the fresh air conditioner can be improved. 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 conditioner operates in winter, the indoor dew point temperature is 10℃, and the outdoor temperature is 5℃. The outdoor temperature is less than the indoor dew point temperature, the fresh air conditioner operates in the mixed air mode, and the heating element is controlled to be turned on to heat the outdoor fresh air entering the fresh air conditioner by using the heating element.

[0129] The outdoor temperature is greater than the indoor dew point temperature, and the fresh air conditioner operates in a mixed air mode.

[0130] Optionally, when the fresh air conditioner operates in summer, determining that the fresh air conditioner operates in a full fresh air mode or a mixed air mode includes: acquiring an outdoor dew point temperature and an indoor temperature. In a case where the indoor temperature is greater than or equal to the outdoor dew point temperature, it is determined that the fresh air conditioner operates in the mixed air mode. In a case where the indoor temperature is less than the outdoor dew point temperature, it is determined that the fresh air conditioner operates in the full fresh air mode.

[0131] The indoor temperature is greater than or equal to the outdoor dew point temperature, and the temperature difference between the fresh air and the indoor air is small, and the two do not meet to generate condensation. At this time, the air conditioner operates in the mixed air mode, and the indoor air and the outdoor fresh air mixed are sent into the indoor, which can utilize the indoor air to reduce the temperature of the outdoor fresh air and improve the comfort of the fresh air. The indoor temperature is less than the outdoor dew point temperature, and the temperature difference between the fresh air and the indoor air is large. At this time, if the mixed air mode is operated, condensation is easy to be generated in the second sub-air cavity, causing a safety hazard. Therefore, in the case where the indoor temperature is less than the outdoor dew point temperature, the fresh air conditioner operates in the full fresh air mode, and the outdoor fresh air is introduced to rapidly update the indoor air, while avoiding the generation of condensation in the fresh air conditioner, which is beneficial to improve the reliability of the fresh air conditioner.

[0132] Exemplarily, when the fresh air conditioner operates in summer, the outdoor dew point temperature is 30℃, and the indoor temperature is 27℃. The indoor temperature is less than the outdoor dew point temperature, and the fresh air conditioner operates in the full fresh air mode.

[0133] When the fresh air conditioner operates in summer, the outdoor dew point temperature is 26℃, and the indoor temperature is 27℃. The indoor temperature is greater than the outdoor dew point temperature, and the fresh air conditioner operates in the mixed air mode.

[0134] In combination Figure 15 As shown in FIG. 1, the disclosure provides another control method for a fresh air conditioner, including:

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

[0136] S302, in a case where the carbon dioxide concentration in the indoor is greater than or equal to a carbon dioxide concentration threshold, the fresh air conditioner determines that the fresh air conditioner operates in a bidirectional fresh air replacement mode.

[0137] S303, in a case where the carbon dioxide concentration in the indoor is less than the carbon dioxide concentration threshold, and the particulate matter content in the indoor is greater than or equal to a particulate matter content threshold, the fresh air conditioner determines that the fresh air conditioner operates in a full fresh air mode or a mixed air mode.

[0138] S304, when the fresh air conditioner is running in winter, the fresh air conditioner acquires the indoor dew point temperature and the outdoor temperature.

[0139] S305, in the case that the outdoor temperature is greater than or equal to the indoor dew point temperature, it is determined that the fresh air conditioner runs the mixed air mode.

[0140] S306, in the case that the outdoor temperature is less than the indoor dew point temperature, it is determined that the fresh air conditioner runs the mixed air mode, and the heating element is controlled to be turned on.

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

[0142] S308, in the case that the indoor temperature is greater than or equal to the outdoor dew point temperature, it is determined that the fresh air conditioner runs the mixed air mode.

[0143] S309, in the case that the indoor temperature is less than the outdoor dew point temperature, it is determined that the fresh air conditioner runs the full fresh air mode.

[0144] The control method for the fresh air conditioner provided by the embodiments of the present disclosure can determine an operation strategy suitable for the air quality in the room according to the carbon dioxide concentration and the particulate matter content in the room, which is beneficial to meet the fresh air replacement demand in different situations and improve the purification effect of indoor air and the comfort of fresh air.

[0145] Optionally, in the case that the carbon dioxide concentration in the room is less than the carbon dioxide concentration threshold and the particulate matter content in the room is less than the particulate matter content threshold, the fresh air conditioner does not replace fresh air. At this time, the air quality is good, and there is no need to replace fresh air.

[0146] The embodiments of the present disclosure provide a control device for a fresh air conditioner, which comprises a processor and a memory storing program instructions, and the processor is configured to execute the control method for the fresh air conditioner of any of the above embodiments when running the program instructions.

[0147] In combination with Figure 13 As shown in the figure, the embodiments of the present disclosure provide a control device for a fresh air conditioner, which comprises a processor 800 and a memory 801. Optionally, the device can also comprise a communication interface 802 and a bus 803. Wherein the processor 800, the communication interface 802 and the memory 801 can complete the communication among each other through the bus 803. The communication interface 802 can be used for information transmission. The processor 800 can call the logical instructions in the memory 801 to execute the control method for the fresh air conditioner of the above embodiments.

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

[0149] The memory 801 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments 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, implements the control method for the fresh air conditioner in the above-mentioned embodiments.

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

[0151] The embodiments of the present disclosure provide a fresh air conditioner, which comprises a fresh air conditioner body and the control device for the fresh air conditioner described above. The control device for the fresh air conditioner is installed in the fresh air conditioner. The installation relationship described herein is not limited to placing in the product, but also includes installation connection with other components of the product, including but not limited to physical connection, electrical connection or signal transmission connection, etc. Those skilled in the art can understand that the control device for the fresh air conditioner can be adapted to the feasible product body, and then realize other feasible embodiments.

[0152] The embodiments of the present disclosure provide a storage medium, which stores program instructions. When the program instructions are run, the control method for the fresh air conditioner described above is executed. The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0153] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, 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 in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0154] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0155] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) can be implemented in other manners. For example, the described device embodiments are merely illustrative. For example, the division of the units is merely a logical function division. There can be another division manner for the actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms. The units described as separated components can or can not be physical separate units. The units shown as separate components can or can not be physical separate units, i.e., can be located in one place, or can be distributed on multiple network units. Some or all of the units can be selected according to the actual needs to implement the embodiments. In addition, the units in the embodiments disclosed herein can be integrated in a processing unit, or each unit can exist alone physically, or two or more units can be integrated in a unit.

Claims

1. A fresh air conditioner characterized by comprising: The new air conditioner comprises a module shell, a fan assembly, and a control module. The module shell is configured with a first sub-air cavity and a second sub-air cavity which are respectively in communication with the outdoor environment, and the first sub-air cavity can be separated from or communicated with the second sub-air cavity; the module shell comprises a wind box and a wind cover; the internal space of the wind box is an air cavity; the wind cover is arranged in the air cavity to divide the air cavity into the first sub-air cavity located inside the wind cover and the second sub-air cavity located outside the wind cover; the wind cover comprises a movable plate body which can be moved to separate or communicate the first sub-air cavity and the second sub-air cavity; The fan assembly comprises a first fan air inlet which can be communicated with the second sub-air cavity, a first fan air outlet which is communicated with the indoor environment, a second fan air inlet which is communicated with the indoor environment, and a second fan air outlet which can be communicated with the first sub-air cavity, the second sub-air cavity or the indoor environment; The control module is configured to control the communication and separation of the second fan air outlet with the first sub-air cavity, the second sub-air cavity or the indoor environment, and the separation or communication of the first sub-air cavity and the second sub-air cavity according to the operation strategy of the new air conditioner. The operation strategy of the new air conditioner comprises a bidirectional fresh air replacement mode and a mixed air mode, and the control module is configured to: when the bidirectional fresh air replacement mode is operated, control the second fan air outlet to be communicated with the first sub-air cavity, and the first sub-air cavity to be separated from the second sub-air cavity; outdoor fresh air is sequentially conveyed to the indoor environment through the second sub-air cavity, the first fan air inlet and the first fan air outlet; indoor air is sequentially discharged to the outdoor environment through the second fan air inlet, the second fan air outlet and the first sub-air cavity; when the mixed air mode is operated, control the second fan air outlet to be communicated with the second sub-air cavity, and the first sub-air cavity to be communicated with the second sub-air cavity; part of the fresh air enters the second sub-air cavity through the first sub-air cavity, and the other part of the fresh air directly enters the second sub-air cavity; indoor air enters the second sub-air 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-air cavity, they flow to the indoor environment through the first fan air inlet and the first fan air outlet in sequence.

2. The fresh air conditioner according to claim 1, characterized in that, The operation strategy of the new air conditioner further comprises a full fresh air mode; the control module is configured to: when the full fresh air mode is operated, control the second fan air outlet to be communicated with the indoor environment, and the first sub-air cavity to be communicated with the second sub-air cavity; The fan assembly comprises a first fan volute, the first fan volute comprises the first fan air inlet which can be communicated with the second sub-air cavity, and the first fan air outlet which is communicated with the indoor environment; fresh air enters the first fan air inlet through the first sub-air cavity and the second sub-air cavity, and is then sequentially conveyed to the indoor environment through the first fan volute and the first fan air outlet.

3. A control method for the fresh air conditioner according to claim 1 or 2, characterized by, The new air conditioner comprises a module shell, a fan assembly, and a control module. The carbon dioxide concentration and the particulate matter content in the indoor environment are detected; The operation strategy of the new air conditioner is determined according to the carbon dioxide concentration and the particulate matter content in the indoor environment; The operation strategy comprises one of the bidirectional fresh air replacement mode, the full fresh air mode or the mixed air mode.

4. The control method according to claim 3, characterized by The operation strategy of the new air conditioner is determined according to the carbon dioxide concentration and the particulate matter content in the indoor environment, comprising: when the carbon dioxide concentration in the indoor environment is greater than or equal to a carbon dioxide concentration threshold, the bidirectional fresh air replacement mode of the new air conditioner is determined to be operated; In a case that the carbon dioxide concentration in the room is less than the carbon dioxide concentration threshold and the particulate matter content in the room is greater than or equal to the particulate matter content threshold, it is determined that the fresh air conditioner operates in the full fresh air mode or the mixed air mode.

5. The control method according to claim 4, characterized by When the fresh air conditioner operates in winter, the determination that the fresh air conditioner operates in the full fresh air mode or the mixed air mode comprises: obtaining the indoor dew point temperature and the outdoor temperature; in a case that the outdoor temperature is greater than or equal to the indoor dew point temperature, it is determined that the fresh air conditioner operates in the mixed air mode.

6. The control method according to claim 5, characterized by In the mixed air mode, the fresh air and the indoor air are mixed in the second sub-air cavity and then sent into the room, and the fresh air conditioner further comprises a heating element; When the fresh air conditioner operates in winter, the determination that the fresh air conditioner operates in the full fresh air mode or the mixed air mode further comprises: in a case that the outdoor temperature is less than the indoor dew point temperature, it is determined that the fresh air conditioner operates in the mixed air mode, and the heating element is controlled to be turned on to heat the outdoor fresh air entering the fresh air conditioner, so as to avoid condensation in the second sub-air cavity.

7. The control method according to claim 6, characterized by The control of the heating element comprises: the heating element is turned on to heat the outdoor fresh air entering the fresh 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 by, When the fresh air conditioner operates in summer, the determination that the fresh air conditioner operates in the full fresh air mode or the mixed air mode comprises: obtaining the outdoor dew point temperature and the indoor temperature; in a case that the indoor temperature is greater than or equal to the outdoor dew point temperature, it is determined that the fresh air conditioner operates in the mixed air mode; in a case that the indoor temperature is less than the outdoor dew point temperature, it is determined that the fresh air conditioner operates in the full fresh air mode.

9. A control device for a fresh air conditioner, comprising a processor and a memory having stored program instructions, characterized in that, The processor is configured to execute the control method for the fresh air conditioner when the program instructions are executed.

10. A storage medium storing program instructions, characterized in that, The program instructions, when executed, perform the control method for the fresh air conditioner as claimed in any one of claims 3 to 8.

Images