A control method and control device for a fresh air conditioner and a fresh air conditioner

Abstract

The application provides a fresh air conditioner control method, a control device and a fresh air conditioner. The fresh air conditioner comprises a first volute assembly and a second volute assembly. The first volute assembly is formed with a first cavity. The first cavity is formed with an A1 air vent, a B1 air vent and a C1 air vent. Movement of a first baffle can open one of the B1 air vent and the C1 air vent and close the other. The second volute assembly is formed with a second cavity. The second cavity is formed with an A2 air vent, a B2 air vent and a C2 air vent. Movement of a second baffle can open one of the B2 air vent and the C2 air vent and close the other at different positions. The control method comprises determining a target mode of a fresh air module, determining target positions of the first baffle and the second baffle, and controlling the first baffle and the second baffle to move to the corresponding target positions. Thus, the fresh air module can simultaneously introduce outdoor fresh air, simultaneously exhaust indoor turbid air, or introduce outdoor fresh air into the first cavity and exhaust indoor turbid air from the second cavity.

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 bring 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 structural design of the fresh air unit is unreasonable and the fresh air mode is single, which results in a narrow range of use for fresh air conditioners and low control accuracy of the fresh air mode, which cannot meet the fresh air needs of different 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 conditioning, 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 fresh air needs of different users.

[0004] This invention provides a control method for a fresh air conditioner. The fresh air conditioner includes a fresh air module, which includes a base body. A first volute assembly and a second volute assembly are arranged side-by-side at the bottom of the base body. The first volute assembly forms a first cavity, which has spaced-apart vents A1, B1, and C1. The second volute assembly forms a second cavity, which has spaced-apart vents A2, B2, and C2. Vents A1 and A2 are both connected to the outside. Vents B1 and C1 are connected to the outside. Both vents B2 and C2 are connected to the interior; a first baffle is movably disposed within the first cavity, the first baffle having different positions that allow one of the vents B1 and C1 to be open and the other to be closed; a second baffle is movably disposed within the second cavity, the second baffle having different positions that allow one of the vents B2 and C2 to be open and the other to be closed; the fresh air module has a first mode that only introduces outdoor fresh air, a second mode that only exhausts indoor stale air, and a third mode that simultaneously introduces outdoor fresh air and exhausts indoor stale air; the control method includes:

[0005] Determine the target mode of the fresh air module;

[0006] Determine the target position of the first baffle and the target position of the second baffle according to the target pattern;

[0007] Control the first and second baffles to move to their respective target positions;

[0008] The target modes include the first mode, the second mode, and the third mode.

[0009] Further optionally, determining the target mode of the fresh air module includes:

[0010] To obtain indoor air turbidity and outdoor air temperature;

[0011] Determine whether the indoor air turbidity and outdoor air temperature are within the corresponding preset ranges;

[0012] The target mode of the fresh air module is determined based on the judgment results of whether the indoor air turbidity and outdoor air temperature are within the corresponding preset range.

[0013] Further optionally, determining the target mode of the fresh air module based on the judgment result of whether the indoor air turbidity and outdoor air temperature are within the corresponding preset range includes:

[0014] When the indoor air turbidity is within a preset turbidity range and the outdoor air temperature is within a preset temperature range, the target mode is determined to be the first mode;

[0015] When the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is greater than the maximum threshold of the preset temperature range, the target mode is determined to be the second mode;

[0016] When the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is within the preset temperature range, the target mode is determined to be the third mode.

[0017] Further optionally, the first baffle has positions a1 and b1. When the first baffle is in position a1, it opens the C1 vent and closes the B1 vent; when the first baffle is in position b1, it opens the B1 vent and closes the C1 vent. The second baffle has positions a2 and b2. When the second baffle is in position a2, it opens the C2 vent and closes the B2 vent; when the second baffle is in position b2, it opens the B2 vent and closes the C2 vent. Determining the target position of the first baffle and the target position of the second baffle according to the target mode includes:

[0018] When the target mode is the first mode, the target position of the first baffle is position a1, and the target position of the second baffle is position a2.

[0019] When the target mode is the second mode, the target position of the first baffle is the b1 position, and the target position of the second baffle is the b2 position;

[0020] When the target mode is the third mode, the target position of the first baffle is position a1, and the target position of the second baffle is position b2.

[0021] Further optionally, the A1 vent is located on the side of the first cavity, the B1 vent is located on the top of the first cavity, and the C1 vent is located at the bottom of the first cavity; the A2 vent is located on the side of the second cavity, the B2 vent is located on the top of the second cavity, and the C2 vent is located at the bottom of the second cavity.

[0022] Further optionally, the A1 vent forms two vents, A11 and A12, arranged side-by-side, and the B2 vent forms two vents, B21 and B22, arranged side-by-side; the base body forms a base air duct, which connects to the outside and the A11 vent; the fresh air module further includes a first connecting pipe and a second connecting pipe, the first connecting pipe connecting to the outside and the A12 vent; the first baffle also has different positions that allow one of the A11 vents and the A12 vent to be opened and the other to be closed; a heat exchanger is provided inside the base air duct, the heat... The heat exchange unit has staggered first and second heat exchange channels, with both ends of the first heat exchange channel connected to the base air duct; the second heat exchange channel connects the indoor space to vent B21, and the second connecting pipe connects the indoor space to vent B22; the second baffle has different positions that allow one of vents B21 and B22 to be opened and the other to be closed; the third mode includes a heat exchange mode and a non-heat exchange mode; determining the target mode of the fresh air module based on whether the indoor air turbidity and outdoor air temperature are within the corresponding preset range further includes:

[0023] Obtain the indoor air temperature and calculate the temperature difference between the indoor air temperature and the outdoor air temperature;

[0024] Determine whether the temperature difference is within a preset temperature range;

[0025] The target mode of the fresh air module is determined based on the result of judging whether the temperature difference is within the preset temperature range.

[0026] Further optionally, determining the target mode of the fresh air module based on the judgment result of whether the temperature difference is within a preset temperature range includes:

[0027] When the temperature difference is not within the preset temperature range, the target mode is determined to be the heat exchange mode;

[0028] When the temperature difference is within the preset temperature range, the target mode is determined to be the non-heat exchange mode.

[0029] Further optionally, the fresh air module also includes a base plate, on which a first ventilation pipe and a second ventilation pipe are disposed, the first ventilation pipe connecting the outside to the base air duct, and the second ventilation pipe connecting the outside to the A2 ventilation opening; the control method further includes: controlling the fresh air module to operate in the target mode;

[0030] The control of the fresh air module to operate in the target mode includes:

[0031] When the fresh air module operates in the first mode, a portion of the outdoor fresh air flows sequentially through the first ventilation pipe and the first connecting pipe into the first cavity and is discharged into the room; another portion of the outdoor fresh air flows sequentially through the second ventilation pipe into the second cavity and is discharged into the room.

[0032] When the fresh air module operates in the second mode, a portion of the indoor stale air enters the first cavity through the B1 vent and is discharged to the outside through the first ventilation pipe; another portion of the indoor stale air enters the second cavity through the second connecting pipe and is discharged to the outside through the second ventilation pipe.

[0033] When the fresh air module operates in the heat exchange mode, outdoor fresh air flows through the first ventilation duct, the base air duct, and the first heat exchange duct into the first cavity and is discharged into the room; indoor stale air flows through the second heat exchange duct into the second cavity and is discharged into the outside.

[0034] When the fresh air module operates in the non-heat exchange mode, outdoor fresh air flows through the first ventilation pipe and the first connecting pipe into the first cavity and is discharged into the room; indoor stale air flows through the second connecting pipe into the second cavity and is discharged into the outside.

[0035] 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:

[0036] The analysis module is used to determine the target mode of the fresh air module and, based on the target mode, determine the target position of the first baffle and the target position of the second baffle.

[0037] The control module is used to control the first baffle and the second baffle to move to their respective target positions.

[0038] The present invention also provides a fresh air conditioner, which employs the control method of the fresh air conditioner described above or a control device including the control method of 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 fresh air module has a first mode that only introduces outdoor fresh air, a second mode that only exhausts indoor stale air, and a third mode that simultaneously introduces outdoor fresh air and exhausts indoor stale air; the control method includes determining the target mode of the fresh air module, determining the target positions of the first baffle and the second baffle according to the target mode, and controlling the first baffle and the second baffle to move to the corresponding target positions respectively; thus, the first cavity and the second cavity of the fresh air module can simultaneously introduce outdoor fresh air, or simultaneously exhaust indoor stale air, or the first cavity introduces outdoor fresh air and the second cavity exhausts indoor stale air; improve the control accuracy of the fresh air mode, expand the application range of the fresh air air conditioner, and meet the fresh air needs of different users; solve the problem of user discomfort caused by the mismatch between the fresh air mode and the actual needs of users;

[0041] (2) When the indoor air turbidity is within the preset turbidity range and the outdoor air temperature is within the preset temperature range, the target mode is determined as the first mode; when the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is greater than the maximum threshold of the preset temperature range, the target mode is determined as the second mode; when the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is within the preset temperature range, the target mode is determined as the third mode; based on the parameters of indoor air and outdoor air, select an appropriate mode to achieve a large flow of fresh air introduction or exhaust of stale air or indoor and outdoor air circulation; reduce the impact of the introduced outdoor air on indoor air, improve indoor air quality, and ensure indoor air comfort;

[0042] (3) The third mode includes heat exchange mode and non-heat exchange mode. When the temperature difference is not within the preset temperature range, the target mode is determined to be heat exchange mode. This allows the introduced outdoor air to exchange heat with the exhausted indoor air, making full use of the energy of the exhausted indoor air and reducing the temperature difference between the introduced outdoor air and the indoor air. When the temperature difference is within the preset temperature range, the target mode is determined to be non-heat exchange mode. This allows outdoor air to be smoothly introduced into the room and indoor air to be smoothly exhausted to the outside, improving the operating efficiency of the fresh air module. Attached Figure Description

[0043] 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.

[0044] 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.

[0045] Figure 1 This is a schematic flowchart of an embodiment of the control method for a fresh air conditioner provided by the present invention;

[0046] Figure 2 This is a schematic diagram of the structure of an indoor unit embodiment provided by the present invention;

[0047] Figure 3 This is an exploded structural diagram of an embodiment of the fresh air module provided by the present invention;

[0048] Figure 4 This is an exploded structural diagram of an embodiment of the fresh air component provided by the present invention;

[0049] Figure 5 This is an exploded structural diagram of an embodiment of the turbid air component provided by the present invention;

[0050] Figure 6 A schematic diagram of the flow path of outdoor fresh air when the fresh air module of the present invention is operating in heat exchange mode;

[0051] Figure 7 A schematic diagram illustrating the flow path of indoor stale air when the fresh air module provided by this invention is operating in heat exchange mode;

[0052] In the picture:

[0053] 1-Base; 11-Base body; 111-Base air duct; 12-Base plate; 131-First ventilation pipe; 132-Second ventilation pipe; 141-First frame; 142-Second frame; 151-First partition; 152-Second partition; 16-Air inlet cavity; 17-Second connecting cavity; 181-First connecting pipe; 182-Second connecting pipe;

[0054] 21-Heat exchange component; 211-First heat exchange channel; 212-Second heat exchange channel; 22-Filter; 23-Electrical box; 24-Wall mounting plate;

[0055] 31-First volute assembly; 311-First volute; 312-First volute cover; 313-First fan blade; 314-First cavity; 32-Second volute assembly; 321-Second volute; 322-Second volute cover; 323-Second fan blade; 324-Second cavity; 33-Drive motor; 331-First shaft end; 332-Second shaft end;

[0056] 4 - Face mask; 41 - Face mask inlet; 42 - Face mask outlet;

[0057] 5-Fresh air module; 6-Indoor unit body. Detailed Implementation

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] In existing fresh air conditioners, the unreasonable structural design of the fresh air unit and the single fresh air mode result in a narrow range of applications for fresh air conditioners, low control accuracy of fresh air modes, and inability to meet the fresh air needs of different users.

[0063] This invention creatively provides a control method for a fresh air conditioning system. The fresh air conditioning system includes a fresh air module, which includes a base body. A first volute assembly and a second volute assembly are disposed at the bottom of the base body. The first volute assembly forms a first cavity, which has spaced-apart vents A1, B1, and C1. A first baffle can move to open one of vents B1 and C1 and close the other. The second volute assembly forms a second cavity, which has spaced-apart vents A2, B2, and C2. A second baffle can move to open one of vents B2 and C2. The control method includes determining the target mode of the fresh air module, determining the target positions of the first baffle and the second baffle based on the target mode, controlling the first baffle and the second baffle to move to the corresponding target positions, so that the first cavity and the second cavity of the fresh air module can simultaneously introduce outdoor fresh air, or simultaneously exhaust indoor stale air, or the first cavity introduces outdoor fresh air and the second cavity exhausts indoor stale air; improving the control accuracy of the fresh air mode, expanding the application range of the fresh air air conditioner, and meeting the fresh air needs of different users; solving the problem of user discomfort caused by the mismatch between the fresh air mode and the actual needs of users.

[0064] <Control Methods>

[0065] like Figures 2 to 7 As shown, this embodiment provides a fresh air conditioner, which includes an indoor unit and an outdoor unit. The indoor unit includes an indoor unit body 6 and a fresh air module 5. The fresh air module 5 is disposed on one side of the indoor unit body 6 and includes a base 1. The base 1 includes a base body 11, and the base body 11 forms a base air duct 111 through which outdoor fresh air can flow. A first volute assembly 31 and a second volute assembly 32 are arranged side by side at the bottom of the base body 11. The first volute assembly 31 forms a first cavity 314, and the first cavity 314 forms an A1 vent, a B1 vent, and a C1 vent arranged at intervals. The A1 vent is located on the side of the first cavity 314 and is connected to... The first cavity 314 is connected to the outside. Fresh outdoor air can enter the first cavity 314 through vent A1, or stale indoor air in the first cavity 314 can be discharged through vent A1. Ventilation B1 is located at the top of the first cavity 314, connecting the interior to the first cavity 314, and stale indoor air can enter the first cavity 314 through vent B1. Ventilation C1 is located at the bottom of the first cavity 314, connecting the interior to the first cavity 314, and fresh outdoor air in the first cavity 314 can be discharged into the interior through vent C1. A first baffle is movably installed inside the first cavity 314, and the first baffle has different positions that allow one of vents B1 and C1 to be opened and the other to be closed.

[0066] The second volute assembly 32 forms a second cavity 324. The second cavity 324 has three vents, A2, B2, and C2, which are spaced apart. Vent A2 is located on the side of the second cavity 324 and connects to the outside of the second cavity 324. Fresh outdoor air can enter the second cavity 324 through vent A2, or stale indoor air in the second cavity 324 can be discharged through vent A2. Vent B2 is located at the top of the second cavity 324 and connects to the inside of the second cavity 324. Stale indoor air can enter the second cavity 324 through vent B2. The air enters the second cavity 324; the C2 vent is located at the bottom of the second cavity 324, and the C2 vent connects the indoor space with the second cavity 324. Outdoor fresh air from the second cavity 324 can be exhausted into the indoor space through the C2 vent; a second baffle is movably installed inside the second cavity 324, and the second baffle has different positions that allow one of the B2 vent and the C2 vent to be opened and the other to be closed; the fresh air module 5 has a first mode that only introduces outdoor fresh air, a second mode that only exhausts indoor stale air, and a third mode that simultaneously introduces outdoor fresh air and exhausts indoor stale air; such as Figure 1 As shown, the control methods include:

[0067] S1. Determine the target mode for fresh air module 5;

[0068] S2. Determine the target position of the first baffle and the target position of the second baffle according to the target pattern;

[0069] S3. Control the first baffle and the second baffle to move to their respective target positions;

[0070] S4. Control the operation of the fresh air module 5 to the target mode;

[0071] The target modes include the first mode, the second mode, and the third mode.

[0072] To address the mismatch between the operating mode of the fresh air module 5 and user needs, this embodiment proposes that S1 includes:

[0073] S11. Obtain indoor air turbidity and outdoor air temperature;

[0074] S12. Determine whether the indoor air turbidity and outdoor air temperature are within the corresponding preset ranges;

[0075] S13. Determine the target mode of fresh air module 5 based on the judgment results of whether the indoor air turbidity and outdoor air temperature are within the corresponding preset range.

[0076] Furthermore, S13 includes:

[0077] S131. When the indoor air turbidity is within the preset turbidity range and the outdoor air temperature is within the preset temperature range, the target mode is determined to be the first mode.

[0078] S132. When the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is greater than the maximum threshold of the preset temperature range, the target mode is determined to be the second mode.

[0079] S133. When the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is within the preset temperature range, the target mode is determined to be the third mode.

[0080] In this way, by selecting an appropriate mode based on the parameters of indoor and outdoor air, a large volume of fresh air can be introduced, stale air can be expelled, or indoor and outdoor air can be circulated; the impact of introduced outdoor air on indoor air can be reduced, indoor air quality can be improved, and indoor air comfort can be guaranteed.

[0081] To address the problem that the fresh air module 5 cannot accurately operate in the corresponding target mode due to unsuitable target positions of the first and second baffles, this embodiment proposes that the first baffle has positions a1 and b1. When the first baffle is in position a1, the first baffle opens the C1 vent and closes the B1 vent; when the first baffle is in position b1, the first baffle opens the B1 vent and closes the C1 vent. Specifically, the first cavity 314 has a cylindrical structure, and the first baffle has an arc-shaped structure. The first baffle is rotatably disposed within the first cavity 314, and the axis of rotation of the first baffle is the axis of the first cavity 314. The first baffle can rotate to either position a1 or position b1.

[0082] The second baffle has positions a2 and b2. When the second baffle is in position a2, it opens vent C2 and closes vent B2. When the second baffle is in position b2, it opens vent B2 and closes vent C2. Specifically, the second cavity 324 has a cylindrical structure, and the second baffle has an arc-shaped structure. The second baffle is rotatably disposed within the second cavity 324, and the axis of rotation of the second baffle is the axis of the second cavity 324. The second baffle can rotate to either position a2 or position b2.

[0083] S2 includes:

[0084] S21. When the target mode is the first mode, the target position of the first baffle is position a1, and the target position of the second baffle is position a2.

[0085] S22. When the target mode is the second mode, the target position of the first baffle is position b1, and the target position of the second baffle is position b2.

[0086] S23. When the target mode is the third mode, the target position of the first baffle is position a1, and the target position of the second baffle is position b2.

[0087] When the fresh air conditioner only needs to introduce outdoor fresh air, the first baffle opens the C1 vent and closes the B1 vent, and the second baffle opens the C2 vent and closes the B2 vent. A portion of the outdoor fresh air can enter the first cavity 314 through the A1 vent and be discharged into the room through the C1 vent; another portion of the outdoor fresh air can enter the second cavity 324 through the A2 vent and be discharged into the room through the C2 vent.

[0088] When the fresh air conditioner only needs to exhaust indoor stale air, the first baffle opens the B1 vent and closes the C1 vent, and the second baffle opens the B2 vent and closes the C2 vent. A portion of the indoor stale air can enter the first cavity 314 through the B1 vent and be exhausted to the outside through the A1 vent; another portion of the indoor stale air can enter the second cavity 324 through the B2 vent and be exhausted to the outside through the A2 vent.

[0089] When the fresh air conditioner needs to simultaneously introduce outdoor fresh air and exhaust indoor stale air, the first baffle opens the C1 vent and closes the B1 vent, and the second baffle opens the B2 vent and closes the C2 vent. Outdoor fresh air can enter the first cavity 314 through the A1 vent and be exhausted to the room through the C1 vent. Indoor stale air can enter the second cavity 324 through the B2 vent and be exhausted to the outside through the A2 vent.

[0090] In addition, ventilation openings A1 and A12 are arranged side by side, and ventilation openings B21 and B22 are arranged side by side; the base duct 111 connects the outside to ventilation opening A11; the fresh air module 5 also includes a first connecting pipe 181 and a second connecting pipe 182, the first connecting pipe 181 connects the outside to ventilation opening A12; the first baffle also has different positions that allow one of ventilation openings A11 and A12 to be open and the other to be closed; when ventilation opening A11 is open and ventilation opening A12 is closed, fresh outdoor air can enter the first cavity 314 through the base duct 111; when ventilation opening A11 is closed and ventilation opening A12 is open, fresh outdoor air can enter the first cavity 314 through the first connecting pipe 181.

[0091] A heat exchange component is installed inside the base air duct 111. The heat exchange component forms a first heat exchange channel 211 and a second heat exchange channel 212 arranged in an alternating manner. Both ends of the first heat exchange channel 211 are connected to the base air duct 111, and the outdoor fresh air flowing through the base air duct 111 can flow through the first heat exchange channel 211. The second heat exchange channel 212 connects the indoor space with the B21 vent, and the second connecting pipe 182 connects the indoor space with the B22 vent. The second baffle has different positions that allow one of the B21 vent and the B22 vent to be open and the other to be closed. When the B21 vent is open and the B22 vent is closed, the indoor stale air can enter the second cavity 324 through the second heat exchange channel 212. When the B21 vent is closed and the B22 vent is open, the indoor stale air can enter the second cavity 324 through the second connecting pipe 182. The first connecting pipe 181 is arranged side by side with the first heat exchange channel 211, and the second connecting pipe 182 is arranged side by side with the second heat exchange channel 212.

[0092] The third mode includes heat exchange mode and non-heat exchange mode; S13 also includes:

[0093] S134. Obtain the indoor air temperature and calculate the temperature difference between the indoor air temperature and the outdoor air temperature;

[0094] S135. Determine whether the temperature difference is within the preset temperature range;

[0095] S136. Determine the target mode of the fresh air module 5 based on the judgment result of whether the temperature difference is within the preset temperature range.

[0096] Furthermore, S136 includes:

[0097] When the temperature difference is not within the preset temperature range, the target mode is determined to be the heat exchange mode; the introduced outdoor air and the exhausted indoor air exchange heat, making full use of the energy of the exhausted indoor air and reducing the temperature difference between the introduced outdoor air and the indoor air.

[0098] When the temperature difference is within the preset temperature range, the target mode is determined to be the non-heat exchange mode; outdoor air is smoothly introduced into the room, and indoor air is smoothly exhausted to the outside, which improves the operating efficiency of the fresh air module 5.

[0099] Furthermore, the fresh air module 5 also includes a base plate 12, which is disposed on one side of the base body 11. A first ventilation pipe 131 and a second ventilation pipe 132 are disposed on the base plate 12. The first ventilation pipe 131 connects to the outside and the base air duct 111 or the first connecting pipe 181, and the second ventilation pipe 132 connects to the outside and the A2 ventilation opening. Specifically, the first ventilation pipe 131 and the second ventilation pipe 132 are disposed on the side of the base plate 12 away from the base body 11. S4 includes:

[0100] S41. When the fresh air module 5 is running in the first mode, a portion of the outdoor fresh air flows sequentially through the first ventilation pipe 131 and the first connecting pipe 181 into the first cavity 314 and is discharged into the room; another portion of the outdoor fresh air flows sequentially through the second ventilation pipe 132 into the second cavity 324 and is discharged into the room.

[0101] S42. When the fresh air module 5 is running in the second mode, a portion of the indoor stale air enters the first cavity 314 through the B1 vent and is discharged to the outside through the first ventilation pipe 131; another portion of the indoor stale air enters the second cavity 324 through the second connecting pipe 182 and is discharged to the outside through the second ventilation pipe 132.

[0102] S43. When the fresh air module 5 is in heat exchange mode, the outdoor fresh air flows through the first ventilation pipe 131, the base air duct 111 and the first heat exchange duct 211 into the first cavity 314 and is discharged into the room; the indoor stale air enters the second cavity 324 through the second heat exchange duct 212 and is discharged into the outside.

[0103] S44. When the fresh air module 5 is operating in non-heat exchange mode, the outdoor fresh air flows through the first ventilation pipe 131 and the first connecting pipe 181 into the first cavity 314 and is discharged into the room; the indoor stale air flows through the second connecting pipe 182 into the second cavity 324 and is discharged into the outside.

[0104] <Control devices and fresh air conditioning>

[0105] This embodiment also provides a control device for the control method of the fresh air conditioner described in any of the above claims, including:

[0106] The analysis module is used to determine the target mode of the fresh air module 5 and, based on the target mode, determine the target position of the first baffle and the target position of the second baffle.

[0107] The control module is used to control the first baffle and the second baffle to move to their respective target positions.

[0108] like Figures 2 to 7 As shown, this embodiment also provides a fresh air conditioner, which employs the control method of the fresh air conditioner described above or a control device that includes the control method of the fresh air conditioner described above.

[0109] The first volute assembly 31 includes a first volute 311 and a first volute cover 312, which are fastened together to form a first cavity 314; a first fan blade 313 is rotatably disposed within the first cavity 314; the second volute assembly 32 includes a second volute 321 and a second volute cover 322, which are fastened together to form a second cavity 324; a second fan blade 323 is rotatably disposed within the second cavity 324;

[0110] The first volute 311 has a first shaft hole, which communicates with the first cavity 314; the second volute 321 has a second shaft hole, which communicates with the second cavity 324.

[0111] The fresh air module 5 also includes a drive motor 33, which is disposed between the first volute assembly 31 and the second volute assembly 32. 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 first fan blade 313. The second shaft end 332 passes through the second shaft hole and is driven to connect with the second fan blade 323.

[0112] When the drive motor 33 rotates, the first fan blade 313 and the second fan blade 323 can rotate synchronously.

[0113] Furthermore, 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 a filter 22 is provided on the first frame 141; the fresh air in the base air duct 111 can flow through the filter 22; a second frame 142 is provided at the second mounting position, and a heat exchanger 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 exchanger 21 are cuboid structures; preferably, the heat exchanger 21 is a total heat exchanger.

[0114] 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 first heat exchange channel 211 in sequence and enters the first cavity 314, and the air in the second heat exchange channel 212 enters the second cavity 324.

[0115] A first partition 151 is provided between the base body 11 and the first volute assembly 31. The first partition 151 is close to the base plate 12. The sidewalls of the first partition 151, the base plate 12, and the base body 11 form an air inlet cavity 16. The air inlet cavity 16 is connected to the first ventilation pipe 131 and the first connecting pipe 181, or connected to the air inlet end of the first ventilation pipe 131 and the base air duct 111. When the fresh air module 5 is running in the first mode, the second mode, or the non-heat exchange mode, the air inlet cavity 16 is connected to the first ventilation pipe 131 and the first connecting pipe 181. When the fresh air module 5 is running in the heat exchange mode, the air inlet cavity 16 is connected to the air inlet end of the first ventilation pipe 131 and the base air duct 111.

[0116] A second partition 152 is also provided between the base body 11 and the first volute assembly 31. A first connecting cavity is formed between the second partition 152 and the side wall of the base body 11. The first connecting cavity connects the air outlet of the base air duct 111 and the A1 connecting port. A second connecting cavity 17 is formed between the second partition 152, the first frame 141, the second frame 142 and the second volute assembly 32. The second connecting cavity 17 connects the second heat exchange channel 212 and the B2 connecting port. The air in the second heat exchange channel 212 enters the second cavity 324 through the second connecting cavity 17.

[0117] 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.

[0118] 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 2424, so that the base plate 12 can be mounted on the wall.

[0119] 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 second heat exchange channel 212; indoor air can enter the second heat exchange channel 212 through the mask inlet 41.

[0120] The bottom wall of the mask 4 has a mask outlet 42, which connects to the C1 connection port and the room; the fresh air in the first cavity 314 can be discharged into the room through the C1 connection port and the mask outlet 42.

[0121] 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, which includes a base body. A first volute assembly and a second volute assembly are arranged side-by-side at the bottom of the base body. The first volute assembly forms a first cavity, which has spaced-apart vents A1, B1, and C1. The second volute assembly forms a second cavity, which has spaced-apart vents A2, B2, and C2. Vents A1 and A2 are connected to the outside. Vents B1, C1, B2, and C2 are also spaced-apart. All openings are connected to the interior; a first baffle is movably disposed within the first cavity, the first baffle having different positions that allow one of the B1 and C1 vents to open and the other to close; a second baffle is movably disposed within the second cavity, the second baffle having different positions that allow one of the B2 and C2 vents to open and the other to close; the fresh air module has a first mode that only introduces outdoor fresh air, a second mode that only exhausts indoor stale air, and a third mode that simultaneously introduces outdoor fresh air and exhausts indoor stale air; the control method includes: Determine the target mode of the fresh air module; Determine the target position of the first baffle and the target position of the second baffle according to the target pattern; Control the first and second baffles to move to their respective target positions; The target mode includes the first mode, the second mode, and the third mode; When the fresh air conditioner is in the first mode, the C1 vent is open and the B1 vent is closed, the C2 vent is open and the B2 vent is closed; a portion of the outdoor fresh air enters the first cavity through the A1 vent and is discharged into the room through the C1 vent; another portion of the outdoor fresh air enters the second cavity through the A2 vent and is discharged into the room through the C2 vent. When the fresh air conditioner is in the second mode, the B1 vent is open and the C1 vent is closed, the B2 vent is open and the C2 vent is closed; a portion of the indoor stale air enters the first cavity through the B1 vent and is discharged to the outside through the A1 vent; another portion of the indoor stale air enters the second cavity through the B2 vent and is discharged to the outside through the A2 vent. When the fresh air conditioner is in the third mode, the C1 vent is open and the B1 vent is closed, the B2 vent is open and the C2 vent is closed; outdoor fresh air enters the first cavity through the A1 vent and is discharged into the room through the C1 vent; indoor stale air enters the second cavity through the B2 vent and is discharged into the outside through the A2 vent. The base body forms a base air duct; the A1 vent forms A11 vent and A12 vent arranged side by side, and the B2 vent forms B21 vent and B22 vent arranged side by side; the base air duct connects the outside to the A11 vent; the fresh air module also includes a first connecting pipe and a second connecting pipe, the first connecting pipe connecting the outside to the A12 vent; a heat exchange component is provided in the base air duct, the heat exchange component forms a first heat exchange channel and a second heat exchange channel arranged in an alternating manner, both ends of the first heat exchange channel are connected to the base air duct, the second heat exchange channel connects the inside to the B21 vent, and the second connecting pipe connects the inside to the B22 vent; The third mode includes heat exchange mode and non-heat exchange mode; When the fresh air conditioner is in the heat exchange mode, the A11 vent is open and the A12 vent is closed. Outdoor fresh air flows through the A11 vent, the base air duct and the first heat exchange duct into the first cavity and is discharged into the room. The B21 vent is open and the B22 vent is closed. Indoor stale air flows through the B21 vent and the second heat exchange duct into the second cavity and is discharged into the outside. When the fresh air conditioner is in the non-heat exchange mode, the A11 vent is closed and the A12 vent is open. Outdoor fresh air flows through the first connecting pipe and the A12 vent into the first cavity and is discharged into the room. The B21 vent is closed and the B22 vent is open. Indoor stale air flows through the second connecting pipe and the B22 vent into the second cavity and is discharged into the room.

2. The control method for a fresh air conditioning system according to claim 1, characterized in that, Determining the target mode of the fresh air module includes: To obtain indoor air turbidity and outdoor air temperature; Determine whether the indoor air turbidity and outdoor air temperature are within the corresponding preset ranges; The target mode of the fresh air module is determined based on the judgment results of whether the indoor air turbidity and outdoor air temperature are within the corresponding preset range.

3. The control method for a fresh air conditioning system according to claim 2, characterized in that, The step of determining the target mode of the fresh air module based on the judgment result of whether the indoor air turbidity and outdoor air temperature are within the corresponding preset range includes: When the indoor air turbidity is within a preset turbidity range and the outdoor air temperature is within a preset temperature range, the target mode is determined to be the first mode; When the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is greater than the maximum threshold of the preset temperature range, the target mode is determined to be the second mode; When the indoor air turbidity is greater than the maximum threshold of the preset turbidity range and the outdoor air temperature is within the preset temperature range, the target mode is determined to be the third mode.

4. The control method for a fresh air conditioning system according to claim 1, characterized in that, Vent A1 is located on the side of the first cavity, vent B1 is located at the top of the first cavity, and vent C1 is located at the bottom of the first cavity; vent A2 is located on the side of the second cavity, vent B2 is located at the top of the second cavity, and vent C2 is located at the bottom of the second cavity.

5. The control method for a fresh air conditioning system according to claim 2, characterized in that, The step of determining the target mode of the fresh air module based on the judgment result of whether the indoor air turbidity and outdoor air temperature are within the corresponding preset range further includes: Obtain the indoor air temperature and calculate the temperature difference between the indoor air temperature and the outdoor air temperature; Determine whether the temperature difference is within a preset temperature range; The target mode of the fresh air module is determined based on the result of judging whether the temperature difference is within the preset temperature range.

6. The control method for a fresh air conditioning system according to claim 5, characterized in that, Determining the target mode of the fresh air module based on the judgment result of whether the temperature difference is within a preset temperature range includes: When the temperature difference is not within the preset temperature range, the target mode is determined to be the heat exchange mode; When the temperature difference is within the preset temperature range, the target mode is determined to be the non-heat exchange mode.

7. The control method for a fresh air conditioning system according to claim 1, characterized in that, The fresh air module also includes a base plate, on which a first ventilation pipe and a second ventilation pipe are provided. The first ventilation pipe is connected to the outside and the base air duct, and the second ventilation pipe is connected to the outside and the A2 ventilation opening. The control method further includes: controlling the fresh air module to operate in the target mode; The control of the fresh air module to operate in the target mode includes: When the fresh air module operates in the first mode, a portion of the outdoor fresh air flows sequentially through the first ventilation pipe and the first connecting pipe into the first cavity and is discharged into the room; another portion of the outdoor fresh air flows sequentially through the second ventilation pipe into the second cavity and is discharged into the room. When the fresh air module operates in the second mode, a portion of the indoor stale air enters the first cavity through the B1 vent and is discharged to the outside through the first ventilation pipe; another portion of the indoor stale air enters the second cavity through the second connecting pipe and is discharged to the outside through the second ventilation pipe. When the fresh air module operates in the heat exchange mode, outdoor fresh air flows through the first ventilation duct, the base air duct, and the first heat exchange duct into the first cavity and is discharged into the room; indoor stale air flows through the second heat exchange duct into the second cavity and is discharged into the outside. When the fresh air module operates in the non-heat exchange mode, outdoor fresh air flows through the first ventilation pipe and the first connecting pipe into the first cavity and is discharged into the room; indoor stale air flows through the second connecting pipe into the second cavity and is discharged into the outside.

8. A control device for the control method of a fresh air conditioning system according to any one of claims 1-7, characterized in that, The control device includes: The analysis module is used to determine the target mode of the fresh air module and, based on the target mode, determine the target position of the first baffle and the target position of the second baffle. The control module is used to control the first baffle and the second baffle to move to their respective target positions.

9. A fresh air conditioning system, characterized in that, The control method of the fresh air conditioner according to any one of claims 1-7 or the control device including the control method of the fresh air conditioner according to claim 8.

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