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

Abstract

The present application 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 air fan arranged in a shell. The refrigerant circulation system comprises a compressor, a main evaporator and a condenser connected by a refrigerant pipeline. A valve assembly is arranged on the refrigerant pipeline. A plurality of partitions are used to form one-to-one flow paths between four exchange ports of the heat exchange core and a fresh air inlet, an exhaust air outlet, a fresh air outlet and a return air inlet. The compressor is arranged on the flow path between the heat exchange core and the exhaust air outlet. When the dehumidification mode is operated, the water vapor in the fresh air is condensed under the action of the low-temperature main evaporator, so that bacteria are not bred due to excessive humidity in the room. The compressor is arranged on the flow path between the heat exchange core and the exhaust air outlet, so that the heat generated by the compressor during operation does not enter the room with the fresh air, thereby reducing the outlet air temperature of the fresh air outlet.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fresh air dehumidification technology, in particular to a fresh air dehumidification air conditioner all-in-one machine and a control method thereof. BACKGROUND

[0002] With the improvement of people's requirements for living environment, fresh air dehumidification air conditioning systems are introduced in many buildings, especially in residences, to improve indoor air quality. Fresh air dehumidification air conditioning systems can supply fresh air to the indoor environment, which is of great significance to human health. In related technologies, the outlet air temperature of the fresh air dehumidification air conditioning system is relatively high, which may break the original balance in the indoor environment and increase the cooling load of the air conditioning system. For example, in the summer, when the outdoor dry-bulb temperature is 30℃ and the relative humidity is 80%, the fresh air supplied by the traditional suspended full-heat-exchange fresh air dehumidification all-in-one machine will reach nearly 40℃ even after heat recovery by the heat exchange core. In the indoor environment that has been stabilized at 25℃, the arrival of fresh air will obviously increase the burden of air conditioning cooling and cause intermittent stuffiness near the air supply outlet, which significantly reduces the comfort of users. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides a fresh air dehumidification air conditioner all-in-one machine, wherein a compressor of a refrigerant circulation system is arranged on a flow path between a heat exchange core and an exhaust air outlet. When exhaust air is discharged, the heat generated by the operation of the compressor can be carried out of the exhaust air outlet, avoiding flowing into the indoor environment and reducing the cooling load of the indoor environment. This can avoid the problem of intermittent stuffiness near the fresh air outlet and improve the comfort of users.

[0004] The present application also provides a control method for a fresh air dehumidification air conditioner all-in-one machine.

[0005] According to the fresh air dehumidification air conditioner all-in-one machine provided by the first aspect of the present application, the following are included:

[0006] A housing, a heat exchange core, a refrigerant circulation system, a fresh air fan and an exhaust air fan arranged in the housing, a fresh air inlet, an exhaust air outlet, a fresh air outlet and a return air inlet arranged in sequence on the housing, the fresh air fan arranged at the fresh air inlet, the exhaust air fan arranged at the exhaust air outlet, the refrigerant circulation system comprising a compressor, a main evaporator and a condenser connected by a refrigerant pipeline;

[0007] A valve assembly arranged 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 are arranged in the shell to form one-to-one 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 in a flow path between the heat exchange core and the exhaust air outlet, and the condenser and the main evaporator are sequentially arranged in a flow path between the fresh air inlet and the heat exchange core.

[0010] According to an embodiment of the present application, the refrigerant circulation system further comprises an auxiliary evaporator between the main evaporator and the heat exchange core, the auxiliary evaporator being connected to the suction port and the exhaust port of the compressor through refrigerant pipelines, and part of the valve bodies of the valve assembly being arranged in the refrigerant pipelines between the auxiliary evaporator and the condenser.

[0011] According to an embodiment of the present application, the refrigerant circulation system further comprises an air conditioner outdoor unit connected to the condenser, the main evaporator and the auxiliary evaporator through refrigerant pipelines, and part of the valve bodies of the valve assembly being arranged in the refrigerant pipelines between the air conditioner outdoor unit and the condenser, the main evaporator and the auxiliary evaporator.

[0012] According to an embodiment of the present application, the valve assembly comprises:

[0013] A first throttling valve is arranged between the exhaust port of the compressor and the inlet of the condenser.

[0014] An eighth throttling valve is arranged between the outlet of the condenser and the inlet of the main evaporator.

[0015] A fourth throttling valve is arranged between the suction port of the compressor and the outlet of the main evaporator.

[0016] A fifth throttling valve is arranged between the outlet of the main evaporator and the inlet of the auxiliary evaporator.

[0017] A sixth throttling valve is arranged between the inlet of the main evaporator and the outlet of the air conditioner outdoor unit.

[0018] A third throttling valve is arranged between the outlet of the air conditioner outdoor unit and the sixth throttling valve, and the outlet of the auxiliary evaporator is connected to the refrigerant pipeline between the third throttling valve and the sixth throttling valve.

[0019] A second throttling valve is arranged between the inlet of the condenser and the outlet of the air conditioner outdoor unit.

[0020] A seventh throttling 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 application, some of the plurality of partitions are arc-shaped flow guide structures.

[0022] According to one embodiment of the present application, the housing further comprises an auxiliary partition, which is arranged between the heat exchange core and the auxiliary evaporator, and the auxiliary partition is provided with a flow hole corresponding to the position of the auxiliary evaporator.

[0023] According to one embodiment of the present application, the refrigerant circulation system further comprises a four-way valve, which is connected to the condenser, the main evaporator, the suction port of the compressor and the exhaust port of the compressor.

[0024] According to the control method of the fresh air dehumidification air conditioner all-in-one machine provided by the second aspect of the present application, the method comprises:

[0025] Obtaining the working mode of the fresh air dehumidification air conditioner all-in-one machine;

[0026] When the working mode is the dehumidification mode, the compressor is controlled to start running, 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.

[0027] According to one embodiment of the present application, when the working mode is the dehumidification mode, the method further comprises:

[0028] Controlling the auxiliary evaporator to be in a refrigeration state, so that the auxiliary evaporator reduces the temperature of the dehumidified fresh air.

[0029] According to one embodiment of the present application, after the step of obtaining the working mode of the fresh air dehumidification air conditioner all-in-one machine, the method further comprises:

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

[0031] According to one embodiment of the present application, after the step of obtaining the working mode of the fresh air dehumidification air conditioner all-in-one machine, the method further comprises:

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

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

[0034] The fresh air dehumidification air conditioner all-in-one machine provided by the embodiment of the present application comprises a shell, a heat exchange core, a refrigerant circulation system, a fresh air fan, an exhaust air fan, a valve assembly and a partition plate, the heat exchange core, the refrigerant circulation system, the fresh air fan and the exhaust air fan are arranged in the shell, the shell is sequentially provided with a fresh air inlet, an exhaust air outlet, a fresh air outlet and a return air inlet; the fresh air fan is arranged at the fresh air inlet, the exhaust air fan is arranged at the exhaust air outlet, 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 and used for adjusting the refrigerant flow in the refrigerant circulation system and the on-off of the refrigerant pipeline; a plurality of partition plates are arranged in the shell and used for forming one-to-one 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; wherein the compressor is arranged on the flow path between the heat exchange core and the exhaust air 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 all-in-one machine operates in a dehumidification mode, the fresh air fan at the fresh air outlet is started to operate, outdoor air is sucked into the shell along the fresh air inlet, the fresh air passes through the condenser and the main evaporator in sequence, the water vapor in the fresh air is condensed under the action of the low-temperature main evaporator, and then is discharged to the outdoor, so that the humidity of the fresh air blown into the indoor can be reduced, the indoor humidity is kept stable, and bacteria breeding due to excessive indoor humidity can be avoided. In this process, the compressor of the refrigerant circulation system is arranged on the flow path between the heat exchange core and the exhaust air outlet, so that the heat generated by the compressor when the compressor works will not enter the indoor along with the fresh air, the outlet air temperature of the fresh air outlet is reduced, the indoor refrigeration load is reduced, the intermittent stuffy problem of the fresh air outlet can be avoided, and the comfort of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0036] Figure 1 The schematic diagram of the fresh air dehumidification air conditioner all-in-one machine provided by the embodiment of the present application;

[0037] Figure 2 The partial enlarged view of the valve assembly provided by the embodiment of the present application;

[0038] Figure 3 The flow path schematic diagram of the fresh air mode or the dehumidification mode of the fresh air dehumidification air conditioner all-in-one machine provided by the embodiment of the present application;

[0039] Figure 4A flow path schematic diagram of the exhaust mode of the fresh air dehumidification air conditioner all-in-one machine provided by the embodiment of the present application;

[0040] Figure 5 A flow path schematic diagram of the full heat exchange mode of the fresh air dehumidification air conditioner all-in-one machine provided by the embodiment of the present application;

[0041] Figure 6 A flow chart of the control method of the fresh air dehumidification air conditioner all-in-one machine provided by the embodiment of the present application.

[0042] Reference signs:

[0043] 10, shell; 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 thrott valve; 22, second thrott valve; 23, third thrott valve; 24, fourth thrott valve; 25, fifth thrott valve; 26, sixth thrott valve; 27, seventh thrott valve; 28, eighth thrott valve; 29, auxiliary partition; 30, flow hole; 31, lifting lug; 32, electric control box. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly below in combination with the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "connected", "connected to", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] In the embodiments of the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0049] According to the fresh air dehumidifying air conditioner all-in-one machine provided by the first aspect of the present application, please refer to Figures 1 to 5 , comprising 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] The shell 10 forms an accommodating cavity, and the shell 10 is provided with a fresh air inlet 101, an exhaust outlet 102, a fresh air outlet 103 and a return air inlet 104, wherein the fresh air inlet 101, the exhaust outlet 102, the fresh air outlet 103 and the return air inlet 104 are sequentially arranged to facilitate the flow path at the heat exchange core 11 to form a cross relationship. The heat exchange core 11, the refrigerant circulation system, the fresh air fan 12 and the exhaust fan 13 are all arranged in the accommodating cavity of the shell 10.

[0051] The fresh air fan 12 is arranged at the fresh air inlet 101 or the fresh air outlet 103, and under the action of the fresh air fan 12, the outdoor air can be sucked into the shell 10 from the fresh air inlet 101, and the fresh air enters the indoor along the fresh air outlet 103 after passing through the heat exchange core 11. The exhaust fan 13 is arranged at the exhaust air outlet 102 or the return air inlet 104, and under the action of the exhaust fan 13, the indoor air can be sucked into the shell 10 from the return air inlet 104, and then flows out along the exhaust air outlet 102 after passing through the heat exchange core 11, so that the indoor air can be renewed.

[0052] In the embodiment of the present application, the refrigerant circulation system comprises a compressor 14, a condenser 15 and a main evaporator 16, and the compressor 14, the condenser 15 and the main evaporator 16 are connected through refrigerant pipelines. A valve assembly is arranged on the refrigerant pipeline, and the valve assembly comprises a throttling valve or a capillary tube, etc., which can adjust the refrigerant flow in the refrigerant circulation system and the on-off of the corresponding refrigerant pipeline. The number of valve bodies in the valve assembly is set according to the need, and the valve bodies are electrically controlled valves, which can adjust the opening of the valve bodies according to the electric signal.

[0053] Please refer to Figure 1 The inside of the shell 10 is provided with a plurality of partitions 17, the plurality of partitions 17 are connected to the inner wall of the shell 10 and connected to the heat exchange core 11, and 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 air outlet 102, the fresh air outlet 103 and the return air inlet 104 correspond to the four exchange ports of the heat exchange core 11 one by one, that is, the fresh air inlet 101 corresponds to one exchange port of the heat exchange core 11 through one flow path, the exhaust air outlet 102 corresponds to one exchange port of the heat exchange core 11 through one flow path, the fresh air outlet 103 corresponds to one exchange port of the heat exchange core 11 through one flow path, and the return air inlet 104 corresponds to one exchange port of the heat exchange core 11 through one flow path.

[0054] In the embodiment of the present application, the compressor 14 is arranged on the flow path between the heat exchange core 11 and the exhaust air outlet 102, and the condenser 15 and the main evaporator 16 are sequentially arranged on the flow path between the fresh air inlet 101 and the heat exchange core 11. When the fresh air dehumidification air conditioner all-in-one machine operates in the dehumidification mode, the fresh air fan 12 at the fresh air outlet 103 is started to operate, the compressor 14 is started to operate, and the valve assembly is correspondingly adjusted. 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, and the water vapor in the fresh air is condensed under the action of the low-temperature main evaporator 16 and then discharged to the outdoor. Therefore, the humidity of the fresh air blown into the indoor can be reduced, the indoor humidity can be kept stable, and bacteria breeding due to excessive indoor humidity can be avoided. In this process, the heat generated by the operation of the compressor 14 will not enter the indoor along with the fresh air, the outlet air temperature of the fresh air outlet 103 is reduced, the indoor refrigeration load is reduced, the intermittent stuffy problem of the fresh air outlet 103 can be avoided, and the comfort of the user is improved.

[0055] In some embodiments, a water pump 2020 is arranged in the shell 10, and the water suction port of the water pump 2020 is located at the lowest position in the shell 10, so that the condensed water dripping from the main evaporator 16 can be promptly discharged. A water collecting groove or a water collecting flow path can be arranged at the bottom of the shell 10, and the lowest position of the water collecting groove or the water collecting flow path is communicated with the water suction port of the water pump 2020.

[0056] In some embodiments, a plurality of lifting lugs 31 are further arranged on the outer side of the shell 10, and the plurality of lifting lugs 31 are used to fix the position of the all-in-one machine. The lifting lugs 31 are provided with screw holes. A pre-embedded part or an expansion bolt can be arranged on the top or the wall in the indoor, and is used to be connected to the screw holes of the lifting lugs 31.

[0057] In some embodiments, an electric control box 32 is further arranged on the outer side of the shell 10, and the electric control box 32 is electrically connected to the fresh air fan 12, the exhaust air fan 13, the compressor 14, and various valve bodies of the valve assembly, and is used to control the operation of the fresh air dehumidification air conditioner all-in-one machine through electric signals. It should be noted that the electric control box 32 is the main control component of the fresh air dehumidification air conditioner all-in-one machine, and can be connected to other circuit elements, such as an outdoor fan.

[0058] In some embodiments, the refrigerant circulation system further comprises an auxiliary evaporator 18, which is arranged between the main evaporator 16 and the heat exchange core 11. The auxiliary evaporator 18 is communicated with the suction port and the exhaust port of the compressor 14 through the refrigerant pipeline, and part of the valve bodies of the valve assembly are arranged on the refrigerant pipeline between the auxiliary evaporator 18 and the condenser 15.

[0059] Please refer to 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 condensate 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 air temperature of the fresh air outlet 103 and improving the comfort of the user. During use, the auxiliary evaporator 18 can be added to the refrigerant circulation loop by controlling the on-off state of part of the valve bodies in the valve assembly. The refrigerant evaporates and absorbs heat in the auxiliary evaporator 18, which can reduce the temperature of the fresh air.

[0060] In some embodiments, the refrigerant circulation system further comprises an air conditioner outdoor unit 19. The air conditioner outdoor unit 19 is connected to the condenser 15, the main evaporator 16 and the auxiliary evaporator 18 through refrigerant pipelines. Part of the valve bodies of the valve assembly are arranged on the refrigerant pipelines between the air conditioner outdoor unit 19 and the condenser 15, the main evaporator 16 and the auxiliary evaporator 18.

[0061] Please refer to Figure 1 Adjusting the on-off state of the valve assembly can connect the condenser 15, the main evaporator 16 and the auxiliary evaporator 18 to the air conditioner outdoor unit 19 and / or the compressor 14 in the shell 10. When only the air conditioner outdoor unit 19 works and the compressor 14 does not work, the noise in the room 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 filtering assembly and a sterilization assembly can be arranged 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 comprises a first throttling valve 21, a second throttling valve 22, a third throttling valve 23, a fourth throttling valve 24, a fifth throttling valve 25, a sixth throttling valve 26, a seventh throttling valve 27 and an eighth throttling valve 28.

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

[0065] In use, the first throttling valve 21, the second throttling valve 22, the third throttling valve 23, the fourth throttling valve 24, the fifth throttling valve 25, the sixth throttling valve 26, the seventh throttling valve 27 and the eighth throttling valve 28 are adjusted to be in a closed state, a partially open state or a fully open state, so that the new air dehumidification air conditioner all-in-one machine is in different working modes. In addition, the opening degree of some valve bodies can be controlled to be a preset opening degree, so as to achieve the effect of throttling and pressure reduction.

[0066] In some embodiments, part of the plurality of partitions 17 is an arc-shaped flow guide structure. Please refer to Figure 1 The partition 17 is connected to the inner wall of the shell 10 and the heat exchange core 11, and the arc-shaped flow 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, the shell 10 further comprises an auxiliary partition 2917, which is arranged between the heat exchange core 11 and the auxiliary evaporator 18, and the auxiliary partition 2917 is provided with a flow hole 30 corresponding to the position of the auxiliary evaporator 18.

[0068] Please refer to Figure 1 The auxiliary partition 2917 is arranged between the heat exchange core 11 and the auxiliary evaporator 18, and the flow hole 30 is arranged at the position corresponding to the auxiliary evaporator 18, and the size of the flow hole 30 is adapted to the size of the auxiliary evaporator 18, that is, the new air from the new air inlet 101 needs to pass through the auxiliary evaporator 18 before entering the heat exchange core 11 along the flow hole 30, thereby improving the cooling effect of the new air.

[0069] According to an embodiment of the present application, the refrigerant circulation system further comprises a four-way valve, which is communicated with the condenser 15, the main evaporator 16, the suction port of the compressor 14 and the exhaust port of the compressor 14.

[0070] Please refer to 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, so that the condenser 15, the main evaporator 16 and the auxiliary evaporator 18 can realize refrigeration or heating under the action of the compressor 14 or the air conditioning outdoor unit 19, and the function of the conventional air conditioner can be played.

[0071] According to the control method of the fresh air dehumidification air conditioner all-in-one machine provided by the second aspect of the present application, please refer to Figure 6 , comprising:

[0072] S100, obtaining the working mode of the fresh air dehumidification air conditioner all-in-one machine.

[0073] S110, when the working mode is the dehumidification mode, the compressor 14 is controlled to start running, and the fresh air fan 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 turn.

[0074] Please refer to Figure 1 and Figure 2 When the working mode is the dehumidification mode, the compressor 14 is started, the first throttling valve 21, the fourth throttling valve 24 and the fifth throttling valve 25 are opened, the eighth throttling valve 28 is at a preset opening degree, and the fresh air fan 12 is opened. In this working mode, the air conditioning outdoor unit 19 is not connected to run, the fresh air fan 12 is started, the built-in compressor 14 is started, the condenser 15 and the main evaporator 16 are driven to dehumidify, and the auxiliary evaporator 18 cools the dehumidified high-temperature air, and then enters the indoor along the fresh air outlet 103. In this process, the heat generated by the operation of the compressor 14 will not enter the indoor with the fresh air, which reduces the outlet air temperature of the fresh air outlet 103, reduces the refrigeration load of the indoor, reduces the frequency of the occurrence of the stuffy phenomenon in the indoor, and improves the comfort of the user.

[0075] In some embodiments, when the working mode is the dehumidification mode, the control method of the fresh air dehumidification air conditioner all-in-one machine further comprises:

[0076] Controlling the auxiliary evaporator 18 to be in a refrigeration state so as to reduce the temperature of the dehumidified fresh air.

[0077] Please refer to Figure 1 When the working mode is the dehumidification mode, the fifth throttling valve 25 and the sixth throttling valve 26 can be controlled to be opened, so that the auxiliary evaporator 18 can be added to the refrigerant circuit, the refrigerant can be evaporated in the auxiliary evaporator 18 to absorb heat, and then the fresh air can be cooled.

[0078] In some embodiments, the step of obtaining the working mode of the fresh air dehumidification air conditioner all-in-one machine further comprises:

[0079] When the working mode is the mute mode, the compressor 14 is controlled to stop, and the air conditioner outdoor unit 19 is controlled to start running.

[0080] Please refer to Figure 1 At night, noise can reduce the sleep quality of the user, the user can manually switch the working mode to the mute mode, or automatically switch to the mute mode according to a preset time, at this time, the compressor 14 in the shell 10 is in the off state, and the air conditioner outdoor unit 19 starts running. The air conditioner outdoor unit 19 is integrated into the refrigerant circulation loop, and the noise of the compressor 14 and the outdoor fan of the air conditioner outdoor unit 19 cannot be transmitted to the indoor, so that the indoor can be in a mute state, which helps to improve the sleep quality and comfort of the user.

[0081] According to one embodiment of the present application, the step of obtaining the working mode of the fresh air dehumidification air conditioner all-in-one machine further comprises:

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

[0083] Please refer to Figure 1 When there is a strong cooling or heating demand in the indoor, the compressor 14 in the shell 10 and the air conditioner outdoor unit 19 can be started at the same time, both of which are integrated into the refrigerant circulation loop, which improves the working efficiency of the fresh air dehumidification air conditioner all-in-one machine and can meet the use demand of the user.

[0084] The fresh air dehumidification air conditioner all-in-one machine provided by the embodiment of the present application further comprises a fresh air mode, an exhaust air mode, a full heat exchange mode, etc., in addition to the dehumidification mode, the mute mode and the linkage mode. The dehumidification mode comprises a fresh air strong dehumidification mode, a full heat exchange strong dehumidification mode, a fresh air dehumidification mode and a full heat exchange dehumidification mode. The mute mode comprises a mute fresh air strong dehumidification mode, a mute fresh air air conditioning mode, a mute full heat exchange strong dehumidification mode and a mute full heat exchange air conditioning mode. The linkage mode comprises a fresh air linkage dehumidification mode and a full heat exchange dehumidification linkage mode.

[0085] The control logic of each specific working mode is described as follows:

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

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

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

[0089] When the working mode is the new air strong dehumidification mode, the compressor 14 is controlled to be in the open state, the air conditioner outdoor unit 19 is controlled to be in the closed state, the first throttling valve 21 is controlled to be in the open state, the second throttling valve 22 is controlled to be in the closed state, the third throttling valve 23 is controlled to be in the closed state, the fourth throttling valve 24 is controlled to be in the open state, the fifth throttling valve 25 is controlled to be in the open state, the sixth throttling valve 26 is controlled to be in the open state, the seventh throttling valve 27 is controlled to be in the closed state, the eighth throttling valve 28 is controlled to be in the slightly open state, the new air fan 12 is controlled to be in the open state, and the exhaust air fan 13 is controlled to be in the closed state. At this time, the new air fan 12 can suck the outdoor air into the shell 10 along the new air inlet 101, and then blow out of the new air outlet 103, thereby realizing the replacement of the new air in the room. At the same time, the water vapor in the new air condenses on the main evaporator 16 when flowing through the condenser 15 and the main evaporator 16, and drops 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 new air continues to flow through the auxiliary evaporator 18, and the auxiliary evaporator 18 can cool the new air, thereby reducing the outlet air temperature of the new air outlet, reducing the refrigeration load of the room, 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 open state, the air conditioner outdoor unit 19 is controlled to be in the closed state, the first throttling valve 21 is controlled to be in the open state, the second throttling valve 22 is controlled to be in the closed state, the third throttling valve 23 is controlled to be in the closed state, the fourth throttling valve 24 is controlled to be in the open state, the fifth throttling valve 25 is controlled to be in the open state, the sixth throttling valve 26 is controlled to be in the open state, the seventh throttling valve 27 is controlled to be in the closed state, the eighth throttling valve 28 is controlled to be in the slightly open state, the new air fan 12 is controlled to be in the open state, and the exhaust air fan 13 is controlled to be in the open state. At this time, the new air fan 12 can suck the outdoor air into the shell 10 along the new air inlet 101, and then blow out of the new air outlet 103, thereby realizing the replacement of the new air in the room. The exhaust air fan 13 can suck the indoor dirty air into the shell 10 along the return air inlet 104, and then blow out of the exhaust air outlet 102. The new air and the indoor air exchange heat at the heat exchange core 11, which can preheat the new air, thereby reducing the temperature difference between the new air and the existing indoor air, which helps to reduce the energy consumption of the new air dehumidification air conditioner all-in-one machine. At the same time, the water vapor in the new air condenses on the main evaporator 16 when flowing through the condenser 15 and the main evaporator 16, and drops 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 new air continues to flow through the auxiliary evaporator 18, and the auxiliary evaporator 18 can cool the new air, thereby reducing the outlet air temperature of the new air outlet, reducing the refrigeration load of the room.

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

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

[0093] When the working mode is the fresh air dehumidification mode, the compressor 14 is controlled to be in the open state, the air conditioner outdoor unit 19 is in the closed state, the first throttling valve 21 is in the open state, the second throttling valve 22 is in the closed state, the third throttling valve 23 is in the closed state, the fourth throttling valve 24 is in the open state, the fifth throttling valve 25 is in the closed state, the sixth throttling valve 26 is in the closed state, the seventh throttling valve 27 is in the closed state, the eighth throttling valve 28 is in the slightly open state, the fresh air fan 12 is in the open state, and the exhaust air fan 13 is in the shutdown state.

[0094] When the working mode is the fresh air dehumidification mode, the compressor 14 is controlled to be in the open state, the air conditioner outdoor unit 19 is in the closed state, the first throttling valve 21 is in the open state, the second throttling valve 22 is in the closed state, the third throttling valve 23 is in the closed state, the fourth throttling valve 24 is in the open state, the fifth throttling valve 25 is in the closed state, the sixth throttling valve 26 is in the closed state, the seventh throttling valve 27 is in the closed state, the eighth throttling valve 28 is in the slightly open state, the fresh air fan 12 is in the open state, and the exhaust air fan 13 is in the shutdown state.

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

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

[0097] When the working mode is the fresh air linkage dehumidification mode, the compressor 14 is controlled to be in the opened state, the air conditioner outdoor unit 19 is controlled to be in the opened state, the first throttling valve 21 is controlled to be in the opened state, the second throttling valve 22 is controlled to be in the closed state, the third throttling valve 23 is controlled to be in the opened state, the fourth throttling valve 24 is controlled to be in the opened state, the fifth throttling valve 25 is controlled to be in the closed state, the sixth throttling valve 26 is controlled to be in the closed state, the seventh throttling valve 27 is controlled to be in the opened state, the eighth throttling valve 28 is controlled to be in the slightly opened state, the fresh air fan 12 is controlled to be in the opened state, and the exhaust air fan 13 is controlled to be in the closed state. In this mode, the fresh air fan 12 is started, the compressor 14 in the device is started, the condenser 15 and the main evaporator 16 are driven to run for dehumidification, and the auxiliary evaporator 18 is driven by the air conditioner outdoor unit 19 to cool the air, thereby reducing the working strength of the built-in compressor 14 and prolonging the service life.

[0098] When the working mode is the full-heat exchange linkage dehumidification mode, the compressor 14 is controlled to be in the opened state, the air conditioner outdoor unit 19 is controlled to be in the opened state, the first throttling valve 21 is controlled to be in the opened state, the second throttling valve 22 is controlled to be in the closed state, the third throttling valve 23 is controlled to be in the opened state, the fourth throttling valve 24 is controlled to be in the opened state, the fifth throttling valve 25 is controlled to be in the closed state, the sixth throttling valve 26 is controlled to be in the closed state, the seventh throttling valve 27 is controlled to be in the opened state, the eighth throttling valve 28 is controlled to be in the slightly opened state, the fresh air fan 12 is controlled to be in the opened state, and the exhaust air fan 13 is controlled to be in the opened state. In this mode, the fresh air fan 12 and the exhaust air fan 13 are started at the same time, the compressor 14 in the device is started, the condenser 15 and the main evaporator 16 are driven to run for dehumidification, and the auxiliary evaporator 18 is driven by the air conditioner outdoor unit 19 to cool the air, thereby reducing the working strength of the built-in compressor 14 and prolonging the service life.

[0099] In summary, when the fresh air dehumidification air conditioner all-in-one machine runs in the dehumidification mode, the fresh air fan 12 at the fresh air outlet 103 starts to run, 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 turn, and the water vapor in the fresh air is condensed under the action of the low-temperature main evaporator 16, and then is discharged to the outdoor. Therefore, the humidity of the fresh air blown into the indoor can be reduced, the indoor humidity is kept stable, and the bacteria breeding due to the excessive humidity in the indoor is avoided. 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 air outlet 102. The heat generated by the compressor 14 when working will not enter the indoor with the fresh air, the outlet air temperature of the fresh air outlet 103 is reduced, the indoor refrigeration load is reduced, the intermittent stuffy problem of the fresh air outlet 103 can be avoided, and the comfort of the user is improved.

[0100] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fresh air dehumidifier integrated air conditioner, characterized in that, include: The housing includes a heat exchange core, a refrigerant circulation system, a fresh air fan, and an exhaust fan, all housed within the housing. The housing is sequentially provided with a fresh air inlet, an exhaust air outlet, a fresh air outlet, and a return air inlet. The fresh air fan is located at the fresh air inlet, and the exhaust fan is located at the exhaust air outlet. The refrigerant circulation system includes a compressor, a main evaporator, and a condenser connected via refrigerant piping. A valve assembly, installed on the refrigerant pipeline, is used to adjust the refrigerant flow rate in the refrigerant circulation system and the on / off state of the corresponding refrigerant pipeline; Multiple partitions are disposed within the housing to form a one-to-one flow path between the four exchange ports of the heat exchange core and the fresh air inlet, the exhaust outlet, the fresh air outlet, and the return air inlet; The compressor is disposed in the flow path between the heat exchange core and the exhaust outlet, and the condenser and the main evaporator are sequentially disposed in the flow path between the fresh air inlet and the heat exchange core. 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 discharge port of the compressor via a refrigerant pipeline. Part of the valve body of the valve assembly is located on the refrigerant pipeline between the auxiliary evaporator and the condenser. The refrigerant circulation system also includes an outdoor unit, which is connected to the condenser, the main evaporator and the auxiliary evaporator via refrigerant piping. Part of the valve body of the valve assembly is located on the refrigerant piping between the outdoor unit and the condenser, the main evaporator and the auxiliary evaporator.

2. The integrated fresh air dehumidification air conditioner according to claim 1, characterized in that, The valve assembly includes: The first throttle valve is located between the exhaust port of the compressor and the inlet of the condenser; The eighth throttle valve is located between the outlet of the condenser and the inlet of the main evaporator; The fourth throttle valve is located between the suction port of the compressor and the outlet of the main evaporator; The fifth throttle valve is located between the outlet of the main evaporator and the inlet of the auxiliary evaporator; The sixth throttle valve is located between the inlet of the main evaporator and the outlet of the outdoor unit of the air conditioner; The third throttle valve is located between the outlet of the outdoor unit of the air conditioner and the sixth throttle valve, and the outlet of the auxiliary evaporator is connected to the refrigerant pipeline between the third throttle valve and the sixth throttle valve; The second throttle valve is located between the inlet of the condenser and the outlet of the outdoor unit of the air conditioner; The seventh throttle valve is located between the inlet of the auxiliary evaporator and the inlet of the outdoor unit of the air conditioner.

3. The integrated fresh air dehumidification air conditioner according to claim 2, characterized in that, Some of the multiple partitions are arc-shaped flow guiding structures.

4. The integrated fresh air dehumidification air conditioner according to claim 2, characterized in that, An auxiliary baffle is also provided inside the housing. The auxiliary baffle is disposed between the heat exchange core and the auxiliary evaporator. The auxiliary baffle is provided with flow holes corresponding to the position of the auxiliary evaporator.

5. The integrated fresh air dehumidification air conditioner according to claim 2, characterized in that, The refrigerant circulation system also includes a four-way valve, which is connected to the condenser, the main evaporator, the compressor's suction port, and the compressor's discharge port.

6. A control method for a fresh air dehumidification air conditioning unit as described in any one of claims 1 to 5, comprising: Obtain the operating mode of the integrated air conditioning unit with fresh air dehumidification; When the working mode is dehumidification mode, the compressor is controlled to start running, 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, condenser, main evaporator, heat exchange core and fresh air outlet in sequence.

7. The control method for the integrated fresh air dehumidification air conditioning unit according to claim 6, characterized in that, When the operating mode is dehumidification mode, the method further includes: The auxiliary evaporator is controlled to be in a cooling state so that the auxiliary evaporator lowers the temperature of the dehumidified fresh air.

8. The control method for the integrated fresh air dehumidification air conditioning unit according to claim 6, characterized in that, The step of obtaining the working mode of the integrated fresh air dehumidification air conditioner further includes: When the operating mode is silent mode, the compressor is stopped and the outdoor unit of the air conditioner is started.

9. The control method for the integrated fresh air dehumidification air conditioning unit according to claim 6, characterized in that, The step of obtaining the working mode of the integrated fresh air dehumidification air conditioner further includes: When the operating mode is the linkage mode, the compressor and the outdoor unit of the air conditioner are started and run simultaneously.

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