A control method, control device, and fresh air conditioner for air conditioning.

Abstract

This invention provides a control method, control device, and fresh air conditioner for a fresh air system. The fresh air conditioner has a weak fresh air mode, a regular fresh air mode, and a strong fresh air mode. The control method includes calculating the temperature difference between indoor and outdoor air temperatures and determining whether the temperature difference is within a preset temperature range. When the temperature difference is within the preset temperature range, the target fresh air mode is determined to be the regular fresh air mode. When the temperature difference is not within the preset temperature range, it is determined whether the user is in the space where the fresh air conditioner is located. Based on the determination result of whether the user is in the space where the fresh air conditioner is located, the target fresh air mode is determined as one of the fresh air modes. The target fresh air mode is different when the user's current location is different, making full use of the time when the user is not in the space where the fresh air conditioner is located to introduce outdoor fresh air in a timely manner, solving the problems of existing fresh air modes being single, having a narrow range of use, and being unable to meet the different fresh air needs of users.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning equipment technology, and particularly relates to a control method, control device and fresh air conditioner for a fresh air conditioner. Background Technology

[0002] With the continuous development of the air conditioning industry, a new type of fresh air conditioner has been launched on the market, which includes a fresh air unit and an exhaust unit. The fresh air unit can introduce fresh outdoor air into the room, and the exhaust unit can exhaust the stale indoor air to the outside, thus completing the function of replacing the air with fresh air. In the existing technology, the fresh air unit has a single fresh air mode. When introducing fresh outdoor air, the indoor air temperature will change significantly, making indoor users feel uncomfortable. In addition, the application range of fresh air conditioners is narrow, and the fresh air mode control precision is low, which cannot meet the different fresh air needs of users. Summary of the Invention

[0003] In view of this, the present invention provides a control method, control device and fresh air conditioner for fresh air conditioners, so as to solve the problems of existing fresh air conditioners having a single fresh air mode, narrow application range and inability to meet the different fresh air needs of users.

[0004] This invention provides a control method for a fresh air conditioner, wherein the fresh air conditioner has a fresh air mode; based on the temperature difference between the outdoor air temperature and the indoor air temperature, the fresh air mode includes a regular fresh air mode, a weak fresh air mode, and a strong fresh air mode; the control method includes:

[0005] Calculate the temperature difference between indoor and outdoor air temperatures and determine whether the temperature difference is within a preset temperature range;

[0006] When the temperature difference is within the preset temperature range, the target fresh air mode is determined to be the conventional fresh air mode;

[0007] When the temperature difference is not within the preset temperature range, determine whether the user is in the space where the fresh air air conditioner is located;

[0008] The target fresh air mode is determined to be one of the fresh air modes based on whether the user is in the space where the fresh air conditioner is located;

[0009] Control the fresh air conditioner to operate in the target fresh air mode.

[0010] Further optionally, the user's residence includes a living room, bedroom, and study; the space where the fresh air conditioner is located is the living room; the step of determining the target fresh air mode as any of the fresh air modes based on the judgment result of whether the user is in the space where the fresh air conditioner is located includes:

[0011] Determine the user's current location;

[0012] When the user's current location is a bedroom or study, determine the preset time period in which the current time falls;

[0013] The user's current state is determined based on the preset time period in which the current time is located, and the target fresh air mode corresponding to the user's current state is determined accordingly.

[0014] The preset time period is determined based on the user's lifestyle.

[0015] Further optionally, when the user's current location is a bedroom, determining the user's current state based on the preset time period in which the current time falls and determining the target fresh air mode corresponding to the user's current state includes:

[0016] When the current time falls within a preset time period of noon, the user's current state is determined to be a midday rest, and the target fresh air mode is determined to be a regular fresh air mode.

[0017] When the current time falls within a preset time period that is evening, the user's current state is determined to be "resting late," and the target fresh air mode is then determined to be a weak fresh air mode.

[0018] When the current time falls within a preset time period in the morning, it is determined that the user will enter the living room, and thus the target fresh air mode is determined to be a strong fresh air mode.

[0019] Further optionally, when the user's current location is a study, determining the user's current state based on the preset time period in which the current time falls and determining the target fresh air mode corresponding to the user's current state includes:

[0020] When the current time falls within a preset time period of morning or afternoon, the user's current state is determined to be studying, and the target fresh air mode is determined to be a weak fresh air mode.

[0021] Further optionally, the user's residence also includes a kitchen; when the user's current location is the kitchen, determining the user's current state based on the preset time period in which the current time falls and determining the target fresh air mode corresponding to the user's current state includes:

[0022] When the current time falls within a preset time period in the morning, the user's current state is determined to be breakfast, and the target fresh air mode is determined to be a strong fresh air mode.

[0023] When the current time falls within a preset time period of noon, the user's current state is determined to be lunchtime, and the target fresh air mode is then determined to be a strong fresh air mode.

[0024] When the current time falls within a preset time period that is evening, the user's current state is determined to be dinner, and the target fresh air mode is determined to be the regular fresh air mode.

[0025] Optionally, the user's residence also includes a bathroom; when the user's current location is a bathroom, determining the user's current state based on the preset time period and determining the target fresh air mode corresponding to the user's current state includes:

[0026] When the current time falls within a preset time period in the morning, the user's current state is determined to be simple washing up, and thus the target fresh air mode is determined to be a strong fresh air mode.

[0027] When the current time falls within a preset time period that is evening, the user's current state is determined to be routine washing and brushing, and thus the target fresh air mode is determined to be the routine fresh air mode.

[0028] Further optionally, the fresh air conditioner includes a fresh air module; the fresh air module forms a base duct, a fresh air cavity, and an exhaust cavity; a heat exchange component is disposed in the base duct, and the heat exchange component forms a fresh air heat exchange channel and an exhaust heat exchange channel; both ends of the fresh air heat exchange channel are connected to the base duct, and the base duct is sequentially connected to the fresh air cavity; the exhaust heat exchange channel is connected to the exhaust cavity; when the target fresh air mode is a conventional fresh air mode, controlling the fresh air conditioner to operate in the target fresh air mode includes:

[0029] Outdoor fresh air enters the room through the base air duct, fresh air heat exchange duct and fresh air cavity; indoor air is discharged to the outside through the exhaust heat exchange duct and exhaust cavity.

[0030] Further optionally, a fresh air connecting pipe is provided at the bottom of the base air duct, and the fresh air connecting pipe is connected to the fresh air cavity; a return air pipe is also provided in the base air duct, the return air pipe is connected to the indoor space and the fresh air cavity, and a valve is provided at the connection between the return air pipe and the fresh air cavity; when the target fresh air mode is a weak fresh air mode, controlling the fresh air air conditioner to operate in the target fresh air mode includes:

[0031] When the valve is opened, outdoor fresh air enters the fresh air chamber through the fresh air connecting pipe and mixes with indoor air that enters the fresh air chamber through the return air pipe, and then is discharged into the room;

[0032] When the target fresh air mode is a strong fresh air mode, controlling the fresh air conditioner to operate in the target fresh air mode includes:

[0033] When the valve is closed, outdoor fresh air flows through the fresh air connecting pipe and the fresh air chamber and is discharged into the room.

[0034] The present invention also provides a control device for the control method of the fresh air conditioner according to any one of the above claims, comprising:

[0035] The acquisition module is used to acquire the indoor air temperature and the outdoor air temperature and calculate the temperature difference between the indoor air temperature and the outdoor air temperature.

[0036] The analysis module is used to determine whether the temperature difference is within a preset temperature range, whether the user is in the space where the fresh air conditioner is located, and to determine the target fresh air mode.

[0037] The control module is used to control the fresh air conditioner to operate in the target fresh air mode.

[0038] The present invention also provides a fresh air conditioner, including the control method for the fresh air conditioner described above or the control device for the control method for the fresh air conditioner described above.

[0039] Compared with the prior art, the main advantages of the present invention are as follows:

[0040] (1) The control method includes calculating the temperature difference between indoor and outdoor air temperature and determining whether the temperature difference is within the preset temperature range; when the temperature difference is within the preset temperature range, the target fresh air mode is determined to be the conventional fresh air mode; when the temperature difference is not within the preset temperature range, it is determined whether the user is in the space where the fresh air conditioner is located; based on the determination result of whether the user is in the space where the fresh air conditioner is located, the target fresh air mode is determined to be one of the fresh air modes; when the user's current location is different, the target fresh air mode is different, making full use of the time when the user is not in the space where the fresh air conditioner is located, so that the fresh air conditioner runs the corresponding fresh air mode, introduces outdoor fresh air in a timely manner, ensures the comfort of the air in the space where the fresh air conditioner is located, avoids the outdoor fresh air from having a large impact on the indoor air, causing the user to feel uncomfortable, and solves the problems of the existing fresh air conditioner having a single fresh air mode, a narrow range of use, and being unable to meet the different fresh air needs of users;

[0041] (2) When the user's current location is a bedroom, the preset time period is morning, noon and evening, and the corresponding target fresh air modes are strong fresh air mode, normal fresh air mode and weak fresh air mode, respectively; when the user's current location is a kitchen, the preset time period is morning, noon and evening, and the corresponding target fresh air modes are strong fresh air mode, strong fresh air mode and normal fresh air mode, respectively; based on the current time and the user's living habits, the user's current state is determined, and then the corresponding fresh air mode is determined, and the fresh air air conditioner is controlled to operate the corresponding fresh air mode to introduce outdoor fresh air into the living room in a timely manner; the control accuracy of the fresh air mode is improved, the application range of the fresh air air conditioner is expanded, and different fresh air needs of users can be met, solving the problem that the low control accuracy of the fresh air mode in the existing technology leads to unsuitable outdoor fresh air. Attached Figure Description

[0042] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0043] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0044] Figure 1 This is a schematic flowchart of an embodiment of the control method for a fresh air conditioner provided by the present invention;

[0045] Figure 2 This is a schematic diagram of the structure of an indoor unit embodiment provided by the present invention;

[0046] Figure 3 This is an exploded structural diagram of an embodiment of the fresh air module provided by the present invention;

[0047] Figure 4 This is an exploded structural diagram of an embodiment of the fresh air component provided by the present invention;

[0048] Figure 5 This is an exploded structural diagram of an embodiment of the exhaust assembly provided by the present invention;

[0049] Figure 6 This is a schematic diagram of an embodiment of the fresh air module provided by the present invention when outdoor fresh air flows through the first fresh air flow path;

[0050] Figure 7 This is a schematic diagram of an embodiment of the fresh air module provided by the present invention when indoor air flows through the exhaust air path;

[0051] In the picture:

[0052] 1-Base; 11-Base body; 111-Base air duct; 12-Base plate; 131-Fresh air inlet duct; 132-Exhaust duct; 141-First frame; 142-Second frame; 151-First partition; 152-Second partition; 16-Fresh air inlet cavity; 17-Exhaust connecting cavity; 181-Fresh air connecting duct; 182-Return air duct;

[0053] 21-Heat exchange component; 211-Fresh air heat exchange duct; 212-Exhaust air heat exchange duct; 22-Filter; 23-Electrical box; 24-Wall mounting plate;

[0054] 31-Fresh air assembly; 311-Fresh air volute; 312-Fresh air volute cover; 313-Fresh air fan blade; 314-Fresh air cavity; 32-Exhaust assembly; 321-Exhaust air volute; 322-Exhaust air volute cover; 323-Exhaust air fan blade; 324-Exhaust air cavity; 33-Drive motor; 331-First shaft end; 332-Second shaft end;

[0055] 4 - Face mask; 41 - Face mask inlet; 42 - Face mask outlet;

[0056] 5-Fresh air module; 6-Indoor unit body. Detailed Implementation

[0057] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0059] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0060] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0061] In existing fresh air conditioning systems, the fresh air mode is limited, and when outdoor fresh air is introduced, the indoor air temperature changes significantly, making indoor users feel uncomfortable. In addition, fresh air conditioning systems have a narrow range of applications and low precision in fresh air mode control, which cannot meet the different fresh air needs of users.

[0062] This invention creatively provides a control method for a fresh air conditioner, which has a fresh air mode. Based on the temperature difference between the outdoor and indoor air temperatures, the fresh air modes include a weak fresh air mode, a regular fresh air mode, and a strong fresh air mode. The control method includes calculating the temperature difference between the indoor and outdoor air temperatures and determining whether the temperature difference is within a preset temperature range. When the temperature difference is within the preset temperature range, the target fresh air mode is determined to be the regular fresh air mode. When the temperature difference is not within the preset temperature range, it is determined whether the user is in the space where the fresh air conditioner is located. Based on the determination result of whether the user is in the space where the fresh air conditioner is located, the target fresh air mode is determined as one of the fresh air modes. The fresh air conditioner is then controlled to operate in the target fresh air mode.

[0063] The target fresh air mode varies depending on the user's current location. By making full use of the time when the user is not in the space where the fresh air conditioner is located, the fresh air conditioner can operate in the corresponding fresh air mode to introduce outdoor fresh air in a timely manner, ensuring the comfort of the air in the space where the fresh air conditioner is located, and avoiding the introduction of outdoor fresh air from having a significant impact on the indoor air, which would cause the user to feel uncomfortable. This solves the problems of existing fresh air conditioners having a single fresh air mode, a narrow range of use, and being unable to meet the different fresh air needs of users.

[0064] <Control Methods>

[0065] like Figures 2 to 7 As shown, this embodiment provides a control method for a fresh air conditioner, which has a fresh air mode. Based on the temperature difference between the outdoor and indoor air temperatures, the fresh air mode includes a conventional fresh air mode, a weak fresh air mode, and a strong fresh air mode. Specifically, the fresh air conditioner includes a fresh air module, which forms a base duct, a fresh air cavity, and an exhaust cavity. A heat exchanger is installed in the base duct, forming a fresh air heat exchange channel and an exhaust heat exchange channel. Both ends of the fresh air heat exchange channel are connected to the base duct, and the base duct is sequentially connected to the fresh air cavity. The exhaust heat exchange channel is connected to the exhaust cavity. When the fresh air conditioner operates in conventional fresh air mode, outdoor fresh air flows through the base duct, the fresh air heat exchange channel, and the fresh air cavity into the room; indoor air flows through the exhaust heat exchange channel and the exhaust cavity and is exhausted to the outside. The energy of the exhaust is fully utilized to bring the temperature of the introduced outdoor fresh air closer to the temperature of the indoor air. Preferably, the heat exchanger is a total heat exchanger.

[0066] A fresh air connecting pipe is installed at the bottom of the base air duct, which connects to the fresh air cavity. A return air pipe is also installed inside the base air duct, connecting the indoor space and the fresh air cavity. A valve is installed at the connection between the return air pipe and the fresh air cavity. When the fresh air air conditioner is operating in the weak fresh air mode, the control valve is opened, and outdoor fresh air enters the fresh air cavity through the fresh air connecting pipe and mixes with the indoor air that enters the fresh air cavity through the return air pipe before being discharged into the room. By mixing, the compatibility between the introduced outdoor fresh air and the indoor air is improved, and the impact of the introduced outdoor air on the indoor air is reduced.

[0067] When the fresh air conditioner is running in strong fresh air mode, the control valve is closed, and outdoor fresh air flows through the fresh air connecting pipe and the fresh air chamber and is discharged into the room.

[0068] like Figure 1 As shown, the control methods include:

[0069] S1. Calculate the temperature difference between indoor and outdoor air temperatures and determine whether the temperature difference is within the preset temperature range.

[0070] S2. When the temperature difference is within the preset temperature range, the target fresh air mode is determined to be the regular fresh air mode;

[0071] S3. When the temperature difference is not within the preset temperature range, determine whether the user is in the space where the fresh air air conditioner is located;

[0072] S4. Based on the judgment result of whether the user is in the space where the fresh air conditioner is located, determine the target fresh air mode as one of the fresh air modes;

[0073] S5, Control the operation of the fresh air conditioning system to the target fresh air mode.

[0074] To address the different fresh air modes required by users in different spaces, this embodiment proposes that the user's residence includes a living room, bedroom, and study; the space where the fresh air air conditioner is located is the living room; S4 includes:

[0075] S411. Determine the user's current location;

[0076] S412. When the user's current location is a bedroom or study, determine the preset time period in which the current time is located;

[0077] S413. Determine the user's current state based on the preset time period in which the current time is located, and determine the target fresh air mode corresponding to the user's current state;

[0078] The preset time period is determined based on the user's lifestyle.

[0079] Specifically, when the user's current location is a bedroom, the user's current state is determined based on a preset time period, and the target fresh air mode corresponding to the user's current state is determined, including:

[0080] When the current time falls within a preset time period of noon, the user's current state is determined to be a lunch break, and thus the target fresh air mode is determined to be a regular fresh air mode.

[0081] When the current time falls within a preset time period that is evening, the user's current state is determined to be "resting late," and the target fresh air mode is then determined to be a weak fresh air mode.

[0082] When the current time falls within a preset time period in the morning, it is determined that the user will enter the living room, and thus the target fresh air mode is determined to be a strong fresh air mode.

[0083] The hours are 06:00-08:00 in the morning, 12:00-14:00 at noon, and 20:00-06:00 the next day in the evening.

[0084] By utilizing the user's study time to promptly introduce fresh outdoor air and ensure indoor air comfort, this embodiment proposes that when the user's current space is a study, S4 further includes:

[0085] S42. When the current time is in the preset time period of morning or afternoon, the user's current state is determined to be studying, and then the target fresh air mode is determined to be a weak fresh air mode.

[0086] The hours are 08:00-12:00 in the morning and 14:00-20:00 in the afternoon.

[0087] By utilizing the user's cooking time to promptly introduce fresh outdoor air and ensure indoor air comfort, this embodiment proposes that the user's residence also include a kitchen; when the user's current space is the kitchen, S4 includes:

[0088] S431. When the current time is in the preset time period of morning, the user's current state is determined to be breakfast, and the target fresh air mode is determined to be strong fresh air mode.

[0089] S432. When the preset time period in which the current time is located is noon, the user's current state is determined to be lunch, and then the target fresh air mode is determined to be strong fresh air mode;

[0090] S433. When the current time falls within the preset time period of evening, determine that the user's current state is dinner, and then determine that the target fresh air mode is the regular fresh air mode.

[0091] The hours are 06:00-08:00 in the morning, 12:00-14:00 at noon, and 20:00-06:00 the next day in the evening.

[0092] By utilizing the user's washing and brushing time to promptly introduce fresh outdoor air and ensure indoor air comfort, this embodiment proposes that the user's residence also include a bathroom; when the user's current space is the bathroom, S4 includes:

[0093] S441. When the current time falls within the preset time period of morning, determine that the user's current state is simple washing up, and then determine that the target fresh air mode is strong fresh air mode;

[0094] S442. When the current time falls within the preset time period of evening, determine that the user's current state is routine washing up, and then determine that the target fresh air mode is the routine fresh air mode.

[0095] The hours are 06:00-08:00 in the morning and 20:00-06:00 the next day in the evening.

[0096] In summary, based on the current time and the user's lifestyle, the system determines the user's current state and then determines the corresponding fresh air mode. It then controls the fresh air conditioner to operate in the corresponding fresh air mode, promptly introducing outdoor fresh air into the living room. This improves the control precision of the fresh air mode, expands the application range of the fresh air conditioner, meets different user fresh air needs, and solves the problem of unsuitable outdoor fresh air introduced due to low control precision of the fresh air mode in existing technologies.

[0097] Specifically, addressing the issue of excessive space occupation caused by the unreasonable placement of components in the fresh air module 5, this embodiment proposes that the fresh air module 5 includes a base 1, a fresh air component 31, and an exhaust component 32; the base 1 includes a base body 11, which forms a base air duct 111; the fresh air component 31 and the exhaust component 32 are arranged side by side at the bottom of the base body 11, with the fresh air component 31 forming a fresh air cavity 314 and the exhaust component 32 forming an exhaust cavity 324; the structure is compact and the space utilization rate is high;

[0098] Furthermore, the fresh air assembly 31 includes a fresh air volute 311 and a fresh air volute cover 312, which are fastened together to form a fresh air cavity 314. The fresh air cavity 314 includes a fresh air cavity inlet and a fresh air cavity outlet. The fresh air cavity inlet is formed at the top of the fresh air cavity 314 and is connected to the air outlet of the base air duct 111. The fresh air cavity outlet is formed at the bottom of the fresh air cavity 314 and is connected to the indoor environment. This allows outdoor fresh air to smoothly enter the fresh air cavity 314 through the base air duct 111 and the fresh air cavity inlet, and to be smoothly discharged into the indoor environment through the fresh air cavity outlet.

[0099] The exhaust assembly 32 includes an exhaust volute 321 and an exhaust volute cover 322. The exhaust volute 321 and the exhaust volute cover 322 are fastened together to form an exhaust cavity 324. The exhaust cavity 324 includes an exhaust cavity inlet and an exhaust cavity outlet. The exhaust cavity inlet is formed at the top of the exhaust cavity 324 and is connected to the air outlet of the exhaust heat exchange duct 212. The exhaust cavity outlet is formed on the side of the exhaust cavity 324 and is connected to the outside. This allows indoor air to smoothly enter the exhaust cavity 324 through the exhaust heat exchange duct 212 and the exhaust cavity inlet, and smoothly exit to the outside through the exhaust cavity outlet.

[0100] To address the issue of the complex structure of the drive mechanism in the fresh air module 5, this embodiment proposes that the fresh air assembly 31 further includes a fresh air fan blade 313, which is rotatably disposed within the fresh air cavity 314; the exhaust assembly 32 further includes an exhaust fan blade 323, which is rotatably disposed within the exhaust cavity 324; the fresh air volute 311 has a first shaft hole that communicates with the fresh air cavity 314; the exhaust volute 321 has a second shaft hole that communicates with the exhaust cavity 324.

[0101] The fresh air module 5 also includes a drive motor 33, which is disposed between the fresh air volute 311 and the exhaust volute 321. The output shaft of the drive motor 33 includes a first shaft end 331 and a second shaft end 332. The first shaft end 331 passes through the first shaft hole and is driven to connect with the fresh air fan blade 313. The second shaft end 332 passes through the second shaft hole and is driven to connect with the exhaust fan blade 323.

[0102] When the drive motor 33 rotates, the fresh air fan blade 313 and the exhaust fan blade 323 can rotate synchronously.

[0103] Furthermore, the base 1 also includes a base plate 12, which is disposed on one side of the base body 11 and close to the air inlet end of the base air duct 111. A fresh air inlet pipe 131 and an exhaust pipe 132 are provided on the side of the base plate 12 away from the base body 11. The fresh air inlet pipe 131 connects the air inlet end of the base air duct 111 to the outside, and the exhaust pipe 132 connects the outlet of the exhaust cavity 324 to the outside.

[0104] To address the issues of insecure fixing and poor sealing of the filter 22 and heat exchange component 21, this embodiment proposes that the base air duct 111 includes a first mounting position and a second mounting position, which are arranged sequentially along the direction of fresh air flow; a first frame 141 is provided at the first mounting position, and the filter 22 is provided on the first frame 141; the fresh air in the base air duct 111 can flow through the filter 22;

[0105] A second frame 142 is provided at the second installation position, and a heat exchange component 21 is provided on the second frame 142; specifically, both the first frame 141 and the second frame 142 are cuboid structures, and both the filter 22 and the heat exchange component 21 are cuboid structures.

[0106] Furthermore, the filter 22 is sealed to the first frame 141, and the heat exchanger 21 is sealed to the second frame 142; the seal is tight, so that the fresh air in the base air duct 111 flows through the filter 22 and the fresh air heat exchange duct 211 in sequence and enters the fresh air cavity 314, and the air in the exhaust heat exchange duct 212 enters the exhaust cavity 324.

[0107] A first partition 151 is provided between the base body 11 and the fresh air assembly 31. The first partition 151 is close to the base plate 12. The first partition 151, the base plate 12, and the side wall of the base body 11 form a fresh air inlet cavity 16. The fresh air inlet cavity 16 is connected to the inlet end of the fresh air inlet pipe 131 and the base air duct 111. When the fresh air conditioner is running in the normal fresh air mode, the outdoor fresh air flows through the fresh air inlet pipe 131 and the fresh air inlet cavity 16 in sequence and enters the base air duct 111. Alternatively, the fresh air inlet cavity 16 is connected to the fresh air inlet pipe 131 and the fresh air connecting pipe. When the fresh air conditioner is running in the weak fresh air mode or the strong fresh air mode, the outdoor fresh air flows through the fresh air inlet pipe 131 and the fresh air inlet cavity 16 in sequence and enters the fresh air connecting pipe, and then enters the fresh air cavity 314.

[0108] A second partition 152 is also provided between the base body 11 and the fresh air component 31. A fresh air connection port is formed between the second partition 152 and the side wall of the base body 11. The fresh air connection port connects the air outlet of the base air duct 111 and the inlet of the fresh air cavity 314. An exhaust connection cavity 17 is formed between the second partition 152, the first frame 141, the second frame 142 and the exhaust volute 321. The exhaust connection cavity 17 connects the exhaust heat exchange duct 212 and the inlet of the exhaust cavity 324. The air in the exhaust heat exchange duct 212 enters the exhaust cavity 324 through the exhaust connection cavity 17.

[0109] An electrical box mounting position is also formed on the bottom side of the base plate 12 near the base body 11. The electrical box 23 is set at the electrical box mounting position and is connected to the base plate 12 by threads. A fresh air control board is set inside the electrical box 23. The fresh air control board is electrically connected to the drive motor 33 to control the operation of the drive motor 33.

[0110] The base body 11 has a slot formed on the side wall near the base plate 12. The slot is used to mount the base plate 12 on the wall-mounted plate 24, so that the base plate 12 can be mounted on the wall.

[0111] In addition, the fresh air module 5 also includes a mask 4, which is detachably fastened to the base plate 12 to form an installation cavity, and the base body 11 is disposed in the installation cavity; the top wall of the mask 4 forms a mask inlet 41, which connects the indoor air to the air inlet of the exhaust heat exchange duct 212; indoor air can enter the exhaust heat exchange duct 212 through the mask inlet 41.

[0112] The bottom wall of the mask 4 has a mask outlet 42, which connects the fresh air cavity outlet to the room; the fresh air in the fresh air cavity 314 can be discharged into the room through the fresh air cavity 314 outlet and the mask outlet 42.

[0113] <Control devices and fresh air conditioning>

[0114] This embodiment also provides a control device for the control method of the fresh air conditioner described in any of the above claims, including:

[0115] The acquisition module is used to acquire the indoor air temperature and the outdoor air temperature and calculate the temperature difference between the indoor air temperature and the outdoor air temperature.

[0116] The analysis module is used to determine whether the temperature difference is within a preset temperature range, whether the user is in the space where the fresh air conditioner is located, and to determine the target fresh air mode.

[0117] The control module is used to control the fresh air conditioner to operate in the target fresh air mode.

[0118] This embodiment also provides a fresh air conditioner, including the control method for the fresh air conditioner described in any of the above claims or the control device for the control method of the fresh air conditioner described in the above claims.

[0119] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A method for controlling a fresh air conditioning system, characterized in that, The fresh air conditioner includes a fresh air module; the fresh air module forms a base duct, a fresh air cavity, and an exhaust cavity; a heat exchanger and a return air duct are installed in the base duct; the heat exchanger forms a fresh air heat exchange channel and an exhaust air heat exchange channel, both ends of the fresh air heat exchange channel are connected to the base duct, the base duct is connected to the fresh air cavity, and the exhaust air heat exchange channel is connected to the exhaust cavity; the return air duct connects the indoor unit to the fresh air cavity, and a valve is installed at the connection between the return air duct and the fresh air cavity; a fresh air connecting pipe is installed at the bottom of the base duct, and the fresh air connecting pipe connects the outdoor unit and the fresh air cavity; the fresh air conditioner has a fresh air mode; based on the temperature difference between the outdoor air temperature and the indoor air temperature, the fresh air mode includes a regular fresh air mode, a weak fresh air mode, and a strong fresh air mode; the control method includes: Calculate the temperature difference between indoor and outdoor air temperatures and determine whether the temperature difference is within a preset temperature range; When the temperature difference is within the preset temperature range, the target fresh air mode is determined to be the conventional fresh air mode; When the temperature difference is not within the preset temperature range, determine whether the user is in the space where the fresh air air conditioner is located; The target fresh air mode is determined as one of the fresh air modes based on whether the user is in the space where the fresh air conditioner is located; Control the fresh air conditioner to operate in the target fresh air mode; In the conventional fresh air mode, outdoor fresh air flows into the room through the base air duct, fresh air heat exchange duct, and fresh air cavity, while indoor air flows out to the outside through the exhaust heat exchange duct and exhaust cavity. In the weak fresh air mode, the valve is opened, and outdoor fresh air enters the fresh air cavity through the fresh air connecting pipe and mixes with indoor air entering the fresh air cavity through the return air duct, before being discharged into the room. In the strong fresh air mode, the valve is closed, and outdoor fresh air flows into the room through the fresh air connecting pipe and fresh air cavity.

2. The control method for a fresh air conditioning system according to claim 1, characterized in that, The user's residence includes a living room, bedroom, and study; the space where the fresh air conditioner is located is the living room; the step of determining the target fresh air mode as any of the fresh air modes based on whether the user is in the space where the fresh air conditioner is located includes: Determine the user's current location; When the user's current location is a bedroom or study, determine the preset time period in which the current time falls; The user's current state is determined based on the preset time period in which the current time is located, and the target fresh air mode corresponding to the user's current state is determined accordingly. The preset time period is determined based on the user's lifestyle.

3. The control method for a fresh air conditioning system according to claim 2, characterized in that, When the user's current location is a bedroom, determining the user's current state based on the preset time period and determining the target fresh air mode corresponding to the user's current state includes: When the current time falls within a preset time period of noon, the user's current state is determined to be a midday rest, and the target fresh air mode is determined to be a regular fresh air mode. When the current time falls within a preset time period that is evening, the user's current state is determined to be "resting late," and the target fresh air mode is then determined to be a weak fresh air mode. When the current time falls within a preset time period in the morning, it is determined that the user will enter the living room, and thus the target fresh air mode is determined to be a strong fresh air mode.

4. The control method for a fresh air conditioning system according to claim 2, characterized in that, When the user's current location is a study, the step of determining the user's current state based on the preset time period in which the current time falls and determining the target fresh air mode corresponding to the user's current state includes: When the current time falls within a preset time period of morning or afternoon, the user's current state is determined to be studying, and the target fresh air mode is determined to be a weak fresh air mode.

5. The control method for a fresh air conditioning system according to claim 2, characterized in that, The user's residence also includes a kitchen; when the user's current location is the kitchen, determining the user's current state based on the preset time period and determining the target fresh air mode corresponding to the user's current state includes: When the current time falls within a preset time period in the morning, the user's current state is determined to be breakfast, and the target fresh air mode is determined to be a strong fresh air mode. When the current time falls within a preset time period of noon, the user's current state is determined to be lunchtime, and the target fresh air mode is then determined to be a strong fresh air mode. When the current time falls within a preset time period that is evening, the user's current state is determined to be dinner, and the target fresh air mode is determined to be the regular fresh air mode.

6. The control method for a fresh air conditioning system according to claim 2, characterized in that, The user's residence also includes a bathroom; when the user's current location is a bathroom, determining the user's current state based on the preset time period and determining the target fresh air mode corresponding to the user's current state includes: When the current time falls within a preset time period in the morning, the user's current state is determined to be simple washing up, and thus the target fresh air mode is determined to be a strong fresh air mode. When the current time falls within a preset time period that is evening, the user's current state is determined to be routine washing and brushing, and thus the target fresh air mode is determined to be the routine fresh air mode.

7. A control device for the control method of a fresh air conditioning system according to any one of claims 1-6, characterized in that, The control device includes: The acquisition module is used to acquire the indoor air temperature and the outdoor air temperature and calculate the temperature difference between the indoor air temperature and the outdoor air temperature. The analysis module is used to determine whether the temperature difference is within a preset temperature range, whether the user is in the space where the fresh air conditioner is located, and to determine the target fresh air mode. The control module is used to control the fresh air conditioner to operate in the target fresh air mode.

8. A fresh air conditioning system, characterized in that, The control device includes the control method for the fresh air conditioning system as described in claim 7.

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