Fresh air dehumidification air conditioner all-in-one machine and control method thereof

Abstract

The invention relates to the technical field of fresh air dehumidification, and provides a fresh air dehumidification air conditioner all-in-one machine and a control method thereof.The fresh air dehumidification air conditioner all-in-one machine comprises a heat exchange core, a refrigerant circulation system, a fresh air fan and an exhaust fan which are arranged in a shell, and the refrigerant circulation system comprises a compressor, a main evaporator and a condenser which are connected through a refrigerant pipeline; the valve assembly is arranged on the refrigerant pipeline; the multiple partition plates are used for forming one-to-one corresponding flow paths between the four exchange ports of the heat exchange core body and the fresh air inlet, the exhaust air outlet, the fresh air outlet and the return air inlet. And the compressor is arranged on a flow path between the heat exchange core body and the exhaust outlet. When the dehumidification mode is operated, water vapor in the fresh air is condensed under the action of the low-temperature main evaporator, and bacteria breeding caused by the fact that the indoor space is too humid is avoided. The compressor is located on the flow path between the heat exchange core and the exhaust outlet, heat generated when the compressor works cannot enter a room along with fresh air, and the air outlet temperature of the fresh air outlet is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air dehumidification, and in particular to a fresh air dehumidification and air conditioning integrated machine and a control method thereof. Background Art

[0002] As people's requirements for living environment increase, fresh air dehumidification air conditioning systems have been introduced in many buildings, especially in residences, to improve indoor air quality. Fresh air dehumidification air conditioning systems can bring fresh air into the room, which is of great significance to human health. In related technologies, the outlet temperature of fresh air dehumidification air conditioning systems is relatively high, which may disrupt the original indoor balance and increase the cooling load of the air conditioning system. For example, in the summer, when the outdoor dry bulb temperature is 30°C and the relative humidity is 80%, the fresh air sent into the room by the traditional ceiling-mounted full heat exchange fresh air dehumidification integrated unit will reach nearly 40°C even after heat recovery by the heat exchange core. In an environment where the indoor temperature has stabilized at 25°C, the arrival of fresh air will obviously increase the burden of air conditioning and cooling, and also lead to intermittent stuffiness near the air outlet, which significantly reduces the user's comfort. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a fresh air dehumidification air conditioning integrated unit, in which the compressor of the refrigerant circulation system is arranged in the flow path between the heat exchange core and the exhaust outlet. During exhaust, the heat generated by the compressor is carried out of the exhaust outlet, preventing it from flowing into the room. This reduces the indoor cooling load, avoids the problem of intermittent stuffiness at the fresh air outlet, and improves user comfort.

[0004] The present invention also provides a control method for a fresh air dehumidification and air conditioning integrated machine.

[0005] According to the first embodiment of the present invention, a fresh air dehumidification and air conditioning integrated unit is provided, comprising:

[0006] A shell and a heat exchange core, a refrigerant circulation system, a fresh air fan and an exhaust fan arranged in the shell, wherein the shell is sequentially provided with a fresh air inlet, an exhaust outlet, a fresh air outlet and a return air inlet, the fresh air fan is arranged at the fresh air inlet, the exhaust fan is arranged at the exhaust outlet, and the refrigerant circulation system includes a compressor, a main evaporator and a condenser connected by a refrigerant pipeline;

[0007] A valve assembly, provided on the refrigerant pipeline, for adjusting the refrigerant flow in the refrigerant circulation system and the on-off of the corresponding refrigerant pipeline;

[0008] a plurality of partitions, the plurality of partitions being arranged in the shell and configured to form one-to-one corresponding flow paths between the four exchange ports of the heat exchange core and the fresh air inlet, the exhaust air outlet, the fresh air outlet, and the return air inlet;

[0009] The compressor is arranged on the flow path between the heat exchange core and the exhaust outlet, and the condenser and the main evaporator are sequentially arranged on the flow path between the fresh air inlet and the heat exchange core.

[0010] According to one embodiment of the present invention, the refrigerant circulation system also includes an auxiliary evaporator, which is located between the main evaporator and the heat exchange core. The auxiliary evaporator is connected to the intake and exhaust ports of the compressor through a refrigerant pipeline, and part of the valve body of the valve assembly is arranged on the refrigerant pipeline between the auxiliary evaporator and the condenser.

[0011] According to one embodiment of the present invention, the refrigerant circulation system also includes an air-conditioning outdoor unit, which is connected to the condenser, the main evaporator and the auxiliary evaporator through a refrigerant pipeline, and part of the valve body of the valve assembly is arranged on the refrigerant pipeline between the air-conditioning outdoor unit and the condenser, the main evaporator and the auxiliary evaporator.

[0012] According to one embodiment of the present invention, the valve assembly comprises:

[0013] a first throttle valve, disposed between the exhaust port of the compressor and the inlet of the condenser;

[0014] an eighth throttle valve, disposed between the outlet of the condenser and the inlet of the main evaporator;

[0015] a fourth throttle valve, disposed between the air intake of the compressor and the outlet of the main evaporator;

[0016] a fifth throttle valve, disposed between the outlet of the main evaporator and the inlet of the auxiliary evaporator;

[0017] a sixth throttle valve, disposed between the inlet of the main evaporator and the outlet of the air conditioner outdoor unit;

[0018] a third throttle valve, disposed between the outlet of the air conditioner outdoor unit and the sixth throttle valve, the outlet of the auxiliary evaporator being connected to the refrigerant pipeline between the third throttle valve and the sixth throttle valve;

[0019] a second throttle valve, disposed between the inlet of the condenser and the outlet of the air conditioner outdoor unit;

[0020] The seventh throttle valve is arranged between the inlet of the auxiliary evaporator and the inlet of the air conditioner outdoor unit.

[0021] According to one embodiment of the present invention, some of the plurality of partitions are arc-shaped guide structures.

[0022] According to one embodiment of the present invention, an auxiliary partition is further provided in the shell, and the auxiliary partition is arranged between the heat exchange core and the auxiliary evaporator. The auxiliary partition is provided with a flow hole at a position corresponding to the auxiliary evaporator.

[0023] According to one embodiment of the present invention, the refrigerant circulation system further includes a four-way valve, and the four-way valve is connected to the condenser, the main evaporator, the air intake port of the compressor, and the air discharge port of the compressor.

[0024] According to a second aspect of the present invention, a method for controlling a fresh air dehumidification and air conditioning integrated unit is provided, comprising:

[0025] Get the working mode of the fresh air dehumidification air conditioner;

[0026] When the working mode is the dehumidification mode, the compressor is controlled to start running, and the fresh air blower is controlled to start, so that the fresh air from the fresh air inlet passes through the fresh air inlet, condenser, main evaporator, heat exchange core and fresh air outlet in sequence.

[0027] According to one embodiment of the present invention, when the working mode is a dehumidification mode, the method further includes:

[0028] The auxiliary evaporator is controlled to be in a cooling state so that the auxiliary evaporator reduces the temperature of the fresh air after dehumidification.

[0029] According to one embodiment of the present invention, the step of obtaining the operating mode of the fresh air dehumidification and air conditioning integrated device further includes:

[0030] When the working mode is the silent mode, the compressor is controlled to stop, and the air conditioner outdoor unit is controlled to start and run.

[0031] According to one embodiment of the present invention, the step of obtaining the operating mode of the fresh air dehumidification and air conditioning integrated device further includes:

[0032] When the working mode is the linkage mode, the compressor and the air conditioner outdoor unit are controlled to start and run at the same time.

[0033] The above one or more technical solutions in the present invention have at least one of the following technical effects:

[0034] The fresh air dehumidification and air conditioning integrated unit provided according to an embodiment of the present invention includes a shell, a heat exchange core, a refrigerant circulation system, a fresh air fan, an exhaust fan, a valve assembly and a partition. The heat exchange core, the refrigerant circulation system, the fresh air fan and the exhaust fan are arranged in the shell, and a fresh air inlet, an exhaust outlet, a fresh air outlet and a return air inlet are sequentially arranged on the shell; the fresh air fan is arranged at the fresh air inlet, and the exhaust fan is arranged at the exhaust outlet. The refrigerant circulation system includes a compressor, a main evaporator and a condenser connected by a refrigerant pipeline; the valve assembly is arranged on the refrigerant pipeline for adjusting the refrigerant flow in the refrigerant circulation system and the opening and closing of the corresponding refrigerant pipeline; a plurality of partitions are arranged in the shell for forming a one-to-one corresponding flow path between the four exchange ports of the heat exchange core and the fresh air inlet, exhaust outlet, fresh air outlet and return air inlet; wherein the compressor is arranged on the flow path between the heat exchange core and the exhaust outlet, and the condenser and the main evaporator are sequentially arranged on the flow path between the fresh air inlet and the heat exchange core. When the fresh air dehumidification air conditioner is in dehumidification mode, the fresh air fan located at the fresh air outlet starts running, drawing outdoor air into the housing along the fresh air inlet. The fresh air then passes through the condenser and main evaporator in sequence. The water vapor in the fresh air condenses at the low-temperature main evaporator before being discharged outdoors. This reduces the humidity of the fresh air entering the room, maintaining a stable indoor humidity and preventing excessive humidity that breeds bacteria. During this process, the compressor of the refrigerant circulation system is located in the flow path between the heat exchange core and the exhaust outlet. The heat generated by the compressor during operation does not enter the room with the fresh air, lowering the outlet air temperature and reducing the indoor cooling load. This avoids intermittent stuffiness at the fresh air outlet and improves user comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A schematic diagram of a fresh air dehumidification and air conditioning integrated unit provided in an embodiment of the present invention;

[0037] Figure 2 A partial enlarged view of a valve assembly provided in an embodiment of the present invention;

[0038] Figure 3 A schematic diagram of the flow path of the fresh air mode or dehumidification mode of the fresh air dehumidification air conditioner provided by an embodiment of the present invention;

[0039] Figure 4A schematic diagram of the flow path of the exhaust mode of the fresh air dehumidification air conditioning integrated unit provided in an embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the flow path of the fresh air dehumidification and air conditioning integrated unit in full heat exchange mode provided by an embodiment of the present invention;

[0041] Figure 6 This is a flow chart of a control method for a fresh air dehumidification and air conditioning integrated unit provided by an embodiment of the present invention.

[0042] Reference numerals:

[0043] 10. Casing; 101. Fresh air inlet; 102. Exhaust air outlet; 103. Fresh air outlet; 104. Return air inlet; 11. Heat exchange core; 12. Fresh air fan; 13. Exhaust air fan; 14. Compressor; 15. Condenser; 16. Main evaporator; 17. Partition; 18. Auxiliary evaporator; 19. Air conditioner outdoor unit; 20. Water pump; 21. First throttle valve; 22. Second throttle valve; 23. Third throttle valve; 24. Fourth throttle valve; 25. Fifth throttle valve; 26. Sixth throttle valve; 27. Seventh throttle valve; 28. Eighth throttle valve; 29. ​​Auxiliary partition; 30. Flow hole; 31. Lifting ear; 32. Electric control box. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the invention more clear, the technical solutions of the invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the invention.

[0045] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0046] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0047] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0048] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0049] According to the first embodiment of the present invention, the fresh air dehumidification air conditioning integrated machine is provided. Figures 1 to 5 , including a shell 10, a heat exchange core 11, a refrigerant circulation system, a fresh air fan 12, an exhaust fan 13, a valve assembly and a plurality of partitions 17.

[0050] A housing 10 has a receiving cavity formed therein. A fresh air inlet 101, an exhaust outlet 102, a fresh air outlet 103, and a return air inlet 104 are provided on the housing 10. The fresh air inlet 101, the exhaust outlet 102, the fresh air outlet 103, and the return air inlet 104 are arranged sequentially to form a cross-flow relationship at the heat exchange core 11. The heat exchange core 11, the refrigerant circulation system, the fresh air fan 12, and the exhaust fan 13 are all disposed within the housing 10.

[0051] The fresh air fan 12 is disposed at the fresh air inlet 101 or the fresh air outlet 103. Under the action of the fresh air fan 12, outdoor air can be sucked into the housing 10 from the fresh air inlet 101. After passing through the heat exchange core 11, the fresh air enters the room through the fresh air outlet 103. The exhaust fan 13 is disposed at the exhaust outlet 102 or the return air inlet 104. Under the action of the exhaust fan 13, indoor air can be sucked into the housing 10 from the return air inlet 104. After passing through the heat exchange core 11, the fresh air flows out through the exhaust outlet 102, thereby refreshing the indoor air.

[0052] In an embodiment of the present invention, the refrigerant circulation system includes a compressor 14, a condenser 15, and a primary evaporator 16. The compressor 14, the condenser 15, and the primary evaporator 16 are connected by a refrigerant pipeline. A valve assembly is provided on the refrigerant pipeline. The valve assembly includes a throttle valve or a capillary tube, etc., which can adjust the refrigerant flow rate within the refrigerant circulation system and the opening and closing of the corresponding refrigerant pipeline. The number of valve bodies in the valve assembly is set according to needs. The valve body is an electrically controlled valve, and the valve body opening can be adjusted according to an electrical signal.

[0053] See also Figure 1 A plurality of partitions 17 are provided inside the shell 10, and the plurality of partitions 17 are connected to the inner wall of the shell 10 and to the heat exchange core 11. The plurality of partitions 17 form four flow paths in the shell 10. The four flow paths make the fresh air inlet 101, the exhaust outlet 102, the fresh air outlet 103 and the return air inlet 104 correspond one-to-one to the four exchange ports of the heat exchange core 11, that is, the fresh air inlet 101 corresponds to an exchange port of the heat exchange core 11 through a flow path, the exhaust outlet 102 corresponds to an exchange port of the heat exchange core 11 through a flow path, the fresh air outlet 103 corresponds to an exchange port of the heat exchange core 11 through a flow path, and the return air inlet 104 corresponds to an exchange port of the heat exchange core 11 through a flow path.

[0054] In an embodiment of the present invention, the compressor 14 is disposed in the flow path between the heat exchange core 11 and the exhaust outlet 102, and the condenser 15 and the main evaporator 16 are sequentially disposed in the flow path between the fresh air inlet 101 and the heat exchange core 11. When the fresh air dehumidification air conditioner is operating in dehumidification mode, the fresh air blower 12 located at the fresh air outlet 103 is activated, the compressor 14 is activated, and the valve assembly is adjusted accordingly, drawing outdoor air into the housing 10 through the fresh air inlet 101. The fresh air then passes through the condenser 15 and the main evaporator 16 in sequence. Water vapor in the fresh air is condensed by the low-temperature main evaporator 16 and then discharged outdoors. This reduces the humidity of the fresh air entering the room, maintains a stable indoor humidity, and prevents excessive humidity from breeding bacteria. During this process, the heat generated by the compressor 14 does not enter the room with the fresh air, lowering the outlet temperature of the fresh air outlet 103 and reducing the indoor cooling load. This avoids intermittent stuffiness at the fresh air outlet 103 and improves user comfort.

[0055] In some embodiments, a water pump 2020 is disposed within the housing 10. The water inlet of the water pump 2020 is located at the lowest position within the housing 10, thereby promptly draining condensed water dripping from the main evaporator 16. A water collection trough or water collection flow path may be disposed at the bottom of the housing 10, with the lowest position of the water collection trough or water collection flow path connected to the water inlet of the water pump 2020.

[0056] In some embodiments, a plurality of lugs 31 are further provided on the outside of the housing 10. The lugs 31 are used to secure the position of the all-in-one device, and screw holes are provided on the lugs 31. Embedded parts or expansion bolts can be provided on the ceiling or wall of the room to connect to the screw holes of the lugs 31.

[0057] In some embodiments, an electrical control box 32 is further disposed outside the housing 10. The electrical control box 32 is electrically connected to the fresh air blower 12, the exhaust blower 13, the compressor 14, and the valve bodies of the valve assembly, and is used to control the operation of the fresh air dehumidification and air conditioning integrated unit via electrical signals. It should be noted that the electrical control box 32 is the primary control component of the fresh air dehumidification and air conditioning integrated unit and can also be connected to other circuit components, such as an outdoor blower.

[0058] In some embodiments, the refrigerant circulation system also includes an auxiliary evaporator 18, which is located between the main evaporator 16 and the heat exchange core 11. The auxiliary evaporator 18 is connected to the intake and exhaust ports of the compressor 14 through a refrigerant pipeline, and part of the valve body of the valve assembly is arranged on the refrigerant pipeline between the auxiliary evaporator 18 and the condenser 15.

[0059] See also Figure 1The auxiliary evaporator 18 is located between the main evaporator 16 and the heat exchange core 11. The fresh air from the fresh air inlet 101 passes through the condenser 15, the main evaporator 16, and the auxiliary evaporator 18 in sequence. The water vapor in the fresh air forms condensed water droplets after passing through the condenser 15 and the main evaporator 16. The auxiliary evaporator 18 can further reduce the temperature of the fresh air entering the heat exchange core 11, thereby reducing the outlet temperature of the fresh air outlet 103 and improving user comfort. During use, the auxiliary evaporator 18 can be added to the refrigerant circulation loop by controlling the opening and closing of part of the valve body in the valve assembly. The refrigerant evaporates in the auxiliary evaporator 18 and absorbs heat, which can reduce the temperature of the fresh air.

[0060] In some embodiments, the refrigerant circulation system also includes an air-conditioning outdoor unit 19, which is connected to the condenser 15, the main evaporator 16 and the auxiliary evaporator 18 through a refrigerant pipeline, and part of the valve body of the valve assembly is arranged on the refrigerant pipeline between the air-conditioning outdoor unit 19 and the condenser 15, the main evaporator 16 and the auxiliary evaporator 18.

[0061] See also Figure 1 By adjusting the on-off state of the valve assembly, the condenser 15, the main evaporator 16 and the auxiliary evaporator 18 can be connected to the air-conditioning outdoor unit 19 and / or the compressor 14 in the shell 10. When only the air-conditioning outdoor unit 19 is working and the compressor 14 is not working, the indoor noise can be reduced, and the all-in-one machine can be switched to an air conditioner to cool or heat the room.

[0062] In some embodiments, a filter component and a disinfection component may be provided between the fresh air inlet 101 and the fresh air outlet 103 to improve the cleanliness of the fresh air.

[0063] In some embodiments, the valve assembly includes a first throttle valve 21 , a second throttle valve 22 , a third throttle valve 23 , a fourth throttle valve 24 , a fifth throttle valve 25 , a sixth throttle valve 26 , a seventh throttle valve 27 , and an eighth throttle valve 28 .

[0064] See also Figure 1 and Figure 2The first throttle valve 21 is arranged between the exhaust port of the compressor 14 and the inlet of the condenser 15; the eighth throttle valve 28 is arranged between the outlet of the condenser 15 and the inlet of the main evaporator 16; the fourth throttle valve 24 is arranged between the intake port of the compressor 14 and the outlet of the main evaporator 16; the fifth throttle valve 25 is arranged between the outlet of the main evaporator 16 and the inlet of the auxiliary evaporator 18; the sixth throttle valve 26 is arranged between the inlet of the main evaporator 16 and the outlet of the air-conditioning outdoor unit 19; the third throttle valve 23 is arranged between the outlet of the air-conditioning outdoor unit 19 and the sixth throttle valve 26, and the outlet of the auxiliary evaporator 18 is connected to the refrigerant pipeline between the third throttle valve 23 and the sixth throttle valve 26; the second throttle valve 22 is arranged between the inlet of the condenser 15 and the outlet of the air-conditioning outdoor unit 19; the seventh throttle valve 27 is arranged between the inlet of the auxiliary evaporator 18 and the inlet of the air-conditioning outdoor unit 19.

[0065] During use, the fresh air dehumidification and air conditioning integrated device can be placed in different operating modes by adjusting the first throttle valve 21, the second throttle valve 22, the third throttle valve 23, the fourth throttle valve 24, the fifth throttle valve 25, the sixth throttle valve 26, the seventh throttle valve 27, and the eighth throttle valve 28 to be closed, partially opened, or fully opened. Furthermore, the openings of some valve bodies can be controlled to be at preset openings to achieve a throttling and pressure-reducing effect.

[0066] In some embodiments, some of the partitions 17 are arc-shaped guide structures. Figure 1 The partition 17 is connected to the inner wall of the heat exchange core 11 and the shell 10. The arc-shaped guide structure can reduce the resistance of air entering and exiting the heat exchange core 11, which helps to reduce the noise when the air flows in the shell 10.

[0067] In some embodiments, an auxiliary partition 2917 is further provided in the shell 10 . The auxiliary partition 2917 is arranged between the heat exchange core 11 and the auxiliary evaporator 18 . The auxiliary partition 2917 is provided with an overflow hole 30 at a position corresponding to the auxiliary evaporator 18 .

[0068] See also Figure 1 An auxiliary partition 2917 is provided between the heat exchange core 11 and the auxiliary evaporator 18, and an overflow hole 30 is provided at the position of the auxiliary partition 2917 corresponding to the auxiliary evaporator 18. The size of the overflow hole 30 is adapted to the size of the auxiliary evaporator 18, that is, the fresh air from the fresh air inlet 101 needs to pass through the auxiliary evaporator 18 before entering the heat exchange core 11 along the overflow hole 30, thereby improving the cooling effect of the fresh air.

[0069] According to one embodiment of the present invention, the refrigerant circulation system further includes a four-way valve connected to the condenser 15 , the main evaporator 16 , the air intake port of the compressor 14 , and the air discharge port of the compressor 14 .

[0070] See also Figure 1 When the refrigerant circulation system includes a four-way valve, the four-way valve can adjust the flow direction of the refrigerant in the refrigerant circulation loop, thereby realizing cooling or heating of the condenser 15, the main evaporator 16 and the auxiliary evaporator 18 under the action of the compressor 14 or the air-conditioning outdoor unit 19, and can play the function of a conventional air conditioner.

[0071] According to the control method of the fresh air dehumidification air conditioner provided by the second embodiment of the present invention, please refer to Figure 6 ,include:

[0072] S100: Obtain the operating mode of the fresh air dehumidification air conditioner.

[0073] S110. When the working mode is the dehumidification mode, the compressor 14 is controlled to start and the fresh air blower 12 is controlled to start, so that the fresh air from the fresh air inlet 101 passes through the fresh air inlet 101, the condenser 15, the main evaporator 16, the heat exchange core 11 and the fresh air outlet 103 in sequence.

[0074] See also Figure 1 and Figure 2 When the working mode is dehumidification mode, the compressor 14 is turned on, the first throttle valve 21, the fourth throttle valve 24 and the fifth throttle valve 25 are open, the eighth throttle valve 28 is at a preset opening, and the fresh air blower 12 is turned on. In this working mode, the air-conditioning outdoor unit 19 is not connected to operation, the fresh air blower 12 is started, the built-in compressor 14 is started, and the condenser 15 and the main evaporator 16 are driven to dehumidify. The auxiliary evaporator 18 cools the high-temperature air after dehumidification, and then enters the room along the fresh air outlet 103. In this process, the heat generated by the compressor 14 when it is working will not enter the room with the fresh air, which reduces the outlet temperature of the fresh air outlet 103, reduces the indoor cooling load, reduces the frequency of stuffiness in the room, and improves the user's comfort.

[0075] In some embodiments, when the operating mode is the dehumidification mode, the control method of the fresh air dehumidification air conditioner further includes:

[0076] The auxiliary evaporator 18 is controlled to be in a cooling state so that the auxiliary evaporator 18 lowers the temperature of the fresh air after dehumidification.

[0077] See also Figure 1 When the working mode is dehumidification mode, the auxiliary evaporator 18 can be added to the refrigerant circuit by controlling the fifth throttle valve 25 and the sixth throttle valve 26 to open. The refrigerant evaporates and absorbs heat in the auxiliary evaporator 18, which can absorb the heat in the fresh air and thus cool the fresh air.

[0078] In some embodiments, the step of obtaining the operating mode of the fresh air dehumidification and air conditioning integrated device further includes:

[0079] When the working mode is the silent mode, the compressor 14 is controlled to stop, and the air-conditioning outdoor unit 19 is controlled to start and run.

[0080] See also Figure 1 At night, noise can reduce a user's sleep quality. Users can manually switch the operating mode to silent mode, or the system can automatically switch to silent mode at a preset time. At this time, the compressor 14 in the housing 10 is turned off, while the air conditioner outdoor unit 19 is running. The air conditioner outdoor unit 19 is integrated into the refrigerant circulation loop, and the noise from the compressor 14 and outdoor fan of the air conditioner outdoor unit 19 is not transmitted into the room, thus keeping the room quiet and improving the user's sleep quality and comfort.

[0081] According to one embodiment of the present invention, the step of obtaining the operating mode of the fresh air dehumidification air conditioner further includes:

[0082] When the working mode is the linkage mode, the compressor 14 and the air-conditioning outdoor unit 19 are controlled to start and run at the same time.

[0083] See also Figure 1 When there is a strong demand for cooling or heating indoors, the compressor 14 in the shell 10 and the air-conditioning outdoor unit 19 can be started at the same time, and both are incorporated into the refrigerant circulation loop at the same time, thereby improving the working efficiency of the fresh air dehumidification air-conditioning integrated unit and meeting the user's usage needs.

[0084] The fresh air dehumidification and air conditioning integrated machine provided in the embodiment of the present invention, in addition to the dehumidification mode, silent mode and linkage mode, also includes fresh air mode, exhaust mode, full heat exchange mode, etc., among which the dehumidification mode includes fresh air strong dehumidification mode, full heat exchange strong dehumidification mode, fresh air dehumidification mode, and full heat exchange dehumidification mode; the silent mode includes silent fresh air strong dehumidification mode, silent fresh air air conditioning mode, silent full heat exchange strong dehumidification mode, and silent full heat exchange air conditioning mode; the linkage mode includes fresh air linkage dehumidification mode and full heat exchange dehumidification linkage mode.

[0085] The following describes the control logic of each specific working mode:

[0086] When the working mode is the fresh air mode, the compressor 14 is controlled to be in the off state, the air conditioner outdoor unit 19 is in the off state, the first throttle valve 21 is in the off state, the second throttle valve 22 is in the off state, the third throttle valve 23 is in the off state, the fourth throttle valve 24 is in the off state, the fifth throttle valve 25 is in the off state, the sixth throttle valve 26 is in the off state, the seventh throttle valve 27 is in the off state, the eighth throttle valve 28 is in the off state, the fresh air blower 12 is in the on state, and the exhaust fan 13 is in the off state. At this time, the fresh air blower 12 can suck outdoor air into the housing 10 along the fresh air inlet 101, and then blow it out of the fresh air outlet 103, thereby realizing the replacement of fresh air in the room. At the position between the fresh air inlet 101 and the fresh air outlet 103, the filtering and disinfecting component can purify the air.

[0087] When the operating mode is exhaust mode, the compressor 14 is controlled to be in the off state, the air conditioner outdoor unit 19 is in the off state, the first throttle valve 21 is in the off state, the second throttle valve 22 is in the off state, the third throttle valve 23 is in the off state, the fourth throttle valve 24 is in the off state, the fifth throttle valve 25 is in the off state, the sixth throttle valve 26 is in the off state, the seventh throttle valve 27 is in the off state, the eighth throttle valve 28 is in the off state, the fresh air fan 12 is in the off state, and the exhaust fan 13 is in the on state. At this time, the exhaust fan 13 can suck the indoor dirty air into the housing 10 along the return air inlet 104, and then blow it out of the exhaust outlet 102, thereby achieving the replacement of indoor air.

[0088] When the working mode is the full heat exchange mode, the compressor 14 is controlled to be in the off state, the air conditioner outdoor unit 19 is in the off state, the first throttle valve 21 is in the off state, the second throttle valve 22 is in the off state, the third throttle valve 23 is in the off state, the fourth throttle valve 24 is in the off state, the fifth throttle valve 25 is in the off state, the sixth throttle valve 26 is in the off state, the seventh throttle valve 27 is in the off state, the eighth throttle valve 28 is in the off state, the fresh air blower 12 is in the on state, and the exhaust fan 13 is in the on state. At this time, the fresh air blower 12 can suck outdoor air into the housing 10 along the fresh air inlet 101, and then blow it out of the fresh air outlet 103, thereby realizing the replacement of fresh air in the room. The exhaust fan 13 can suck indoor dirty air into the housing 10 along the return air inlet 104, and then blow it out of the exhaust outlet 102. The fresh air and the indoor air exchange heat at the heat exchange core 11, which can preheat the fresh air, thereby reducing the temperature difference between the fresh air and the existing indoor air, which helps to reduce the energy consumption of the fresh air dehumidification and air conditioning integrated unit.

[0089] When the working mode is the fresh air strong dehumidification mode, the compressor 14 is controlled to be in the on state, the air conditioner outdoor unit 19 is in the off state, the first throttle valve 21 is in the on state, the second throttle valve 22 is in the closed state, the third throttle valve 23 is in the closed state, the fourth throttle valve 24 is in the open state, the fifth throttle valve 25 is in the open state, the sixth throttle valve 26 is in the open state, the seventh throttle valve 27 is in the closed state, the eighth throttle valve 28 is in the slightly open state, the fresh air blower 12 is in the on state, and the exhaust fan 13 is in the off state. At this time, the fresh air blower 12 can suck outdoor air into the shell 10 along the fresh air inlet 101, and then blow it out of the fresh air outlet 103, thereby realizing the replacement of fresh air in the room. At the same time, the water vapor in the fresh air condenses on the main evaporator 16 when flowing through the condenser 15 and the main evaporator 16, and drips to the bottom of the shell 10 under the action of gravity, and then is discharged under the action of the water pump 20. The dehumidified fresh air continues to flow through the auxiliary evaporator 18, which can cool the fresh air, thereby reducing the outlet temperature of the fresh air, reducing the indoor cooling load, and improving the user experience.

[0090] When the working mode is the full heat exchange strong dehumidification mode, the compressor 14 is controlled to be in the on state, the air conditioner outdoor unit 19 is in the off state, the first throttle valve 21 is in the on state, the second throttle valve 22 is in the closed state, the third throttle valve 23 is in the closed state, the fourth throttle valve 24 is in the open state, the fifth throttle valve 25 is in the open state, the sixth throttle valve 26 is in the open state, the seventh throttle valve 27 is in the closed state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the on state. At this time, the fresh air fan 12 can suck outdoor air into the shell 10 along the fresh air inlet 101, and then blow it out of the fresh air outlet 103, thereby realizing the replacement of fresh air in the room. The exhaust fan 13 can suck indoor dirty air into the shell 10 along the return air inlet 104, and then blow it out of the exhaust outlet 102. The fresh air exchanges heat with the indoor air at heat exchange core 11, preheating the fresh air and reducing the temperature difference between the fresh air and the existing indoor air, thereby helping to reduce the energy consumption of the fresh air dehumidification air conditioner. Simultaneously, water vapor in the fresh air condenses on the main evaporator 16 as it flows through condenser 15 and main evaporator 16, dripping onto the bottom of housing 10 under the action of gravity before being discharged by water pump 20. The dehumidified fresh air continues to flow through auxiliary evaporator 18, which cools the fresh air, thereby lowering the outlet temperature of the fresh air and reducing the indoor cooling load.

[0091] When the working mode is the fresh air dehumidification mode, the compressor 14 is controlled to be in the on state, the air-conditioning outdoor unit 19 is in the off state, the first throttle valve 21 is in the on state, the second throttle valve 22 is in the closed state, the third throttle valve 23 is in the closed state, the fourth throttle valve 24 is in the open state, the fifth throttle valve 25 is in the closed state, the sixth throttle valve 26 is in the closed state, the seventh throttle valve 27 is in the closed state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the off state.

[0092] When the working mode is the full heat exchange dehumidification mode, the compressor 14 is controlled to be in the on state, the air-conditioning outdoor unit 19 is in the off state, the first throttle valve 21 is in the on state, the second throttle valve 22 is in the closed state, the third throttle valve 23 is in the closed state, the fourth throttle valve 24 is in the open state, the fifth throttle valve 25 is in the closed state, the sixth throttle valve 26 is in the closed state, the seventh throttle valve 27 is in the closed state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the on state.

[0093] When the working mode is the silent fresh air strong dehumidification mode, the compressor 14 is controlled to be in the off state, the air conditioner outdoor unit 19 is in the on state, the first throttle valve 21 is in the off state, the second throttle valve 22 is in the open state, the third throttle valve 23 is in the closed state, the fourth throttle valve 24 is in the closed state, the fifth throttle valve 25 is in the open state, the sixth throttle valve 26 is in the open state, the seventh throttle valve 27 is in the open state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the off state. At this time, the air conditioner outdoor unit 19 is running, and the compressor 14 in the shell 10 is not running, which reduces the indoor noise and can put the room in silent mode. The silent mode can be preset to automatically start during the night sleep period, or it can be actively started according to the user's needs.

[0094] When the operating mode is silent fresh air air conditioning mode, the compressor 14 is controlled to be in the off state, the air conditioner outdoor unit 19 is in the on state, the first throttle valve 21 is in the off state, the second throttle valve 22 is in the open state, the third throttle valve 23 is in the open state, the fourth throttle valve 24 is in the closed state, the fifth throttle valve 25 is in the open state, the sixth throttle valve 26 is in the open state, the seventh throttle valve 27 is in the open state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the off state. In this mode, the fresh air fan 12 is started, the air conditioner outdoor unit 19 is connected and operated, and the condenser 15, the main evaporator 16, and the auxiliary evaporator 18 act as indoor heat exchangers to cool or heat the air, eliminating the noise of the compressor 14 in the equipment, and the fresh air dehumidifier is used as the air conditioner indoor unit.

[0095] When the working mode is the silent full heat exchange strong dehumidification mode, the compressor 14 is controlled to be in the off state, the air-conditioning outdoor unit 19 is in the on state, the first throttle valve 21 is in the off state, the second throttle valve 22 is in the open state, the third throttle valve 23 is in the open state, the fourth throttle valve 24 is in the closed state, the fifth throttle valve 25 is in the open state, the sixth throttle valve 26 is in the open state, the seventh throttle valve 27 is in the open state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the on state.

[0096] When the working mode is the silent full heat exchange air conditioning mode, the compressor 14 is controlled to be in the off state, the air conditioning outdoor unit 19 is in the on state, the first throttle valve 21 is in the off state, the second throttle valve 22 is in the open state, the third throttle valve 23 is in the open state, the fourth throttle valve 24 is in the closed state, the fifth throttle valve 25 is in the open state, the sixth throttle valve 26 is in the open state, the seventh throttle valve 27 is in the open state, the eighth throttle valve 28 is in the fully open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the on state.

[0097] When the operating mode is the fresh air linked dehumidification mode, the compressor 14 is controlled to be in the on state, the air conditioner outdoor unit 19 is in the on state, the first throttle valve 21 is in the open state, the second throttle valve 22 is in the closed state, the third throttle valve 23 is in the open state, the fourth throttle valve 24 is in the open state, the fifth throttle valve 25 is in the closed state, the sixth throttle valve 26 is in the closed state, the seventh throttle valve 27 is in the open state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the off state. In this mode, the fresh air fan 12 starts, the compressor 14 in the equipment starts, driving the condenser 15 and the main evaporator 16 to operate for dehumidification, while the auxiliary evaporator 18 is driven by the air conditioner outdoor unit 19 to cool the air, reducing the workload of the built-in compressor 14 and extending its service life.

[0098] When the operating mode is full heat exchange linked dehumidification mode, the compressor 14 is controlled to be in the on state, the air conditioner outdoor unit 19 is in the on state, the first throttle valve 21 is in the open state, the second throttle valve 22 is in the closed state, the third throttle valve 23 is in the open state, the fourth throttle valve 24 is in the open state, the fifth throttle valve 25 is in the closed state, the sixth throttle valve 26 is in the closed state, the seventh throttle valve 27 is in the open state, the eighth throttle valve 28 is in the slightly open state, the fresh air fan 12 is in the on state, and the exhaust fan 13 is in the on state. In this mode, the fresh air fan 12 and the exhaust fan 13 are started at the same time, and the compressor 14 in the equipment starts, driving the condenser 15 and the main evaporator 16 to operate for dehumidification. The auxiliary evaporator 18 is driven by the air conditioner outdoor unit 19 to cool the air, reducing the workload of the built-in compressor 14 and extending its service life.

[0099] In summary, when the fresh air dehumidification air conditioner is running in dehumidification mode, the fresh air blower 12 located at the fresh air outlet 103 starts running, and the outdoor air is sucked into the shell 10 along the fresh air inlet 101. The fresh air passes through the condenser 15 and the main evaporator 16 in sequence. The water vapor in the fresh air is condensed under the action of the low-temperature main evaporator 16 and then discharged to the outside. Therefore, the humidity of the fresh air blown into the room can be reduced, the indoor humidity can be kept stable, and the indoor humidity can be avoided from being too humid and breeding bacteria. In this process, the compressor 14 of the refrigerant circulation system is located on the flow path between the heat exchange core 11 and the exhaust outlet 102. The heat generated by the compressor 14 when it is working will not enter the room with the fresh air, thereby reducing the outlet air temperature of the fresh air outlet 103, reducing the indoor cooling load, avoiding the problem of intermittent stuffiness at the fresh air outlet 103, and improving the user's comfort.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fresh air dehumidification air conditioning integrated machine, characterized in that: include: A shell and a heat exchange core, a refrigerant circulation system, a fresh air fan and an exhaust air fan arranged in the shell, wherein a fresh air inlet, an exhaust air outlet, a fresh air outlet and a return air inlet are sequentially arranged on the shell, the fresh air fan is arranged at the fresh air inlet, the exhaust air fan is arranged at the exhaust air outlet, and the refrigerant circulation system includes a compressor, a main evaporator and a condenser connected by a refrigerant pipeline; A valve assembly, arranged on the refrigerant pipeline, for adjusting the refrigerant flow in the refrigerant circulation system and the opening and closing of the corresponding refrigerant pipeline; A plurality of baffles, the plurality of baffles being arranged in the shell, and being used to form a one-to-one corresponding flow path between the four exchange ports of the heat exchange core and the fresh air inlet, the exhaust air outlet, the fresh air outlet and the return air inlet; Wherein, the compressor is arranged on the flow path between the heat exchange core and the exhaust outlet, and the condenser and the main evaporator are arranged in sequence on the flow path between the fresh air inlet and the heat exchange core.

2. The fresh air dehumidification and air conditioning integrated machine according to claim 1, characterized in that: The refrigerant circulation system also includes an auxiliary evaporator, which is located between the main evaporator and the heat exchange core. The auxiliary evaporator is connected to the suction port and exhaust port of the compressor through a refrigerant pipeline, and a partial valve body of the valve assembly is arranged on the refrigerant pipeline between the auxiliary evaporator and the condenser.

3. The fresh air dehumidification and air conditioning integrated machine according to claim 2, characterized in that: The refrigerant circulation system also includes an air-conditioning outdoor unit, which is connected to the condenser, the main evaporator and the auxiliary evaporator through a refrigerant pipeline, and a part of the valve body of the valve assembly is arranged on the refrigerant pipeline between the air-conditioning outdoor unit and the condenser, the main evaporator and the auxiliary evaporator.

4. The fresh air dehumidification and air conditioning integrated machine according to claim 3, characterized in that: The valve assembly comprises: a first throttle valve, disposed between the exhaust port of the compressor and the inlet of the condenser; an eighth throttle valve, disposed between the outlet of the condenser and the inlet of the main evaporator; a fourth throttle valve, disposed between the air intake port of the compressor and the outlet of the main evaporator; a fifth throttle valve, arranged between the outlet of the main evaporator and the inlet of the auxiliary evaporator; a sixth throttle valve, disposed between the inlet of the main evaporator and the outlet of the air conditioner outdoor unit; a third throttle valve, arranged between the outlet of the air conditioner outdoor unit and the sixth throttle valve, the outlet of the auxiliary evaporator being connected to the refrigerant pipeline between the third throttle valve and the sixth throttle valve; A second throttle valve is disposed between the inlet of the condenser and the outlet of the air conditioner outdoor unit; The seventh throttle valve is arranged between the inlet of the auxiliary evaporator and the inlet of the air conditioner outdoor unit.

5. The fresh air dehumidification and air conditioning integrated machine according to claim 4, characterized in that: Some of the partitions among the plurality of partitions are arc-shaped flow-guiding structures.

6. The fresh air dehumidification and air conditioning integrated machine according to claim 4, characterized in that: An auxiliary baffle is also provided in the shell, and the auxiliary baffle is arranged between the heat exchange core and the auxiliary evaporator. The auxiliary baffle is provided with a flow hole at a position corresponding to the auxiliary evaporator.

7. The fresh air dehumidification and air conditioning integrated machine according to claim 4, characterized in that: The refrigerant circulation system further includes a four-way valve, which is connected to the condenser, the main evaporator, the air intake port of the compressor, and the air discharge port of the compressor.

8. A control method for the fresh air dehumidification air conditioning integrated machine according to any one of claims 1 to 7, comprising: Get the working mode of the fresh air dehumidification air conditioner; When the working mode is the dehumidification mode, the compressor is controlled to start and run, and the fresh air fan is controlled to start, so that the fresh air from the fresh air inlet passes through the fresh air inlet, the condenser, the main evaporator, the heat exchange core and the fresh air outlet in sequence.

9. The control method of the fresh air dehumidification air conditioning integrated machine according to claim 8, characterized in that: When the working mode is a dehumidification mode, the method further includes: The auxiliary evaporator is controlled to be in a refrigeration state so that the auxiliary evaporator reduces the temperature of the fresh air after dehumidification.

10. The control method of the fresh air dehumidification air conditioning integrated machine according to claim 8, characterized in that: The step of obtaining the working mode of the fresh air dehumidification air conditioner integrated machine further includes: When the working mode is the silent mode, the compressor is controlled to stop, and the air conditioner outdoor unit is controlled to start and run.

11. The control method of the fresh air dehumidification air conditioning integrated machine according to claim 8, characterized in that: The step of obtaining the working mode of the fresh air dehumidification air conditioner integrated machine further includes: When the working mode is the linkage mode, the compressor and the air conditioner outdoor unit are controlled to start and run at the same time.

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