WO2022160862A1

WO2022160862A1 - Air conditioning system

Info

Publication number: WO2022160862A1
Application number: PCT/CN2021/130156
Authority: WO
Inventors: 汪亚东; 王若峰
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-01-29
Filing date: 2021-11-11
Publication date: 2022-08-04
Also published as: CN214536909U

Abstract

The present application relates to the technical field of smart air conditioning, and discloses an air conditioning system, comprising: an indoor unit body and an outdoor unit body; a compressor, provided in the outdoor unit body; a first cycle assembly, comprising a first indoor heat exchanger, a first outdoor heat exchanger, and a first throttling apparatus, wherein the first cycle assembly is connected to the compressor to form a first refrigerant circulation loop, the first indoor heat exchanger is communicated with an air return port of the compressor, and the first outdoor heat exchanger is communicated with a discharge port of the compressor; and a second cycle assembly, comprising a second indoor heat exchanger, a second outdoor heat exchanger, a second throttling apparatus, and a four-way valve, wherein the second cycle assembly is connected to the compressor to form a second refrigerant circulation loop, the first indoor heat exchanger and the second indoor heat exchanger are both provided in the indoor unit body. When the first refrigerant circulation loop and the second refrigerant circulation loop both are in a connection state, an air conditioner can implement the function of constant-temperature dehumidification.

Description

Air Conditioning System

This application is based on the Chinese patent application with the application number of 202120275144.3 and the filing date of January 29, 2021, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is incorporated herein by reference.

technical field

The present application relates to the technical field of intelligent air conditioners, for example, to an air conditioner system.

Background technique

At present, household air conditioners generally have the functions of cooling, heating, ventilation and dehumidification. When the dehumidification function is turned on, the air conditioner operates in the dehumidification mode according to the automatically set low temperature and low wind speed, and the indoor humid air passes through the air conditioner evaporator. After the temperature drops, The air humidity is in a supersaturated state, and excess water vapor is precipitated in the form of condensed water to achieve dehumidification. Since the temperature of the evaporator is very low, the dehumidified and low-temperature air is blown into the room, that is, the cooling that is usually accompanied by the dehumidification mode of the air conditioner, which is not suitable for users who only need dehumidification.

In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art: the prior art discloses a single-unit air conditioner heat exchange system, the system is divided into at least two independent heat exchange modules, and some heat exchange modules are controlled by controlling some of the heat exchange modules. In the cooling mode, some of the heat exchange modules are in the heating mode to achieve constant temperature dehumidification; however, the heat exchange system has a complicated shunt pipeline and high manufacturing costs.

SUMMARY OF THE INVENTION

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

The embodiments of the present disclosure provide an air conditioning system, which realizes the function of constant temperature and dehumidification by simply and reasonably dividing the flow of the heat exchange system.

In some embodiments, the air conditioning system includes:

Indoor body and outdoor body;

a compressor, arranged in the outdoor body;

The first circulation assembly includes a first indoor heat exchanger, a first outdoor heat exchanger and a first throttling device; the first circulation assembly is connected with the compressor to form a first refrigerant circulation loop, wherein the first circulation The indoor heat exchanger is communicated with the air return port of the compressor, and the first outdoor heat exchanger is communicated with the exhaust port of the compressor;

The second circulation assembly includes a second indoor heat exchanger, a second outdoor heat exchanger, a second throttling device and a four-way valve; the second circulation assembly is connected with the compressor to form a second refrigerant circulation loop;

Wherein, the first indoor heat exchanger and the second indoor heat exchanger are jointly arranged in the indoor body.

Optionally, the arrangement of the first indoor heat exchanger and the second indoor heat exchanger in the indoor body is at least one of the following:

The first indoor heat exchanger and the second indoor heat exchanger are arranged at intervals along the direction of the air duct of the indoor body; or,

The first indoor heat exchanger and the second indoor heat exchanger are arranged side by side along the axial direction of the indoor fan of the indoor body.

Optionally, for the first indoor heat exchanger and the second indoor heat exchanger arranged side by side along the axial direction of the inner fan of the indoor body, the inner fan includes a first inner fan and a second inner fan. A fan, wherein the first internal fan is set corresponding to the position of the first indoor heat exchanger, and the second internal fan is set corresponding to the position of the second indoor heat exchanger.

Optionally, the overall volume of the first indoor heat exchanger is greater than or equal to the overall volume of the second indoor heat exchanger.

Optionally, the first outdoor heat exchanger and the second outdoor heat exchanger are jointly arranged in the outdoor body, and the arrangement manner in the outdoor body is at least one of the following:

The first outdoor heat exchanger and the second outdoor heat exchanger are arranged at intervals along the direction of the air duct of the outdoor body; or,

The first outdoor heat exchanger and the second outdoor heat exchanger are vertically arranged side by side; or,

The first outdoor heat exchanger and the second outdoor heat exchanger are arranged side by side in the lateral direction.

Optionally, the outdoor fan of the outdoor body is an axial flow fan;

For the first outdoor heat exchanger and the second outdoor heat exchanger arranged side by side vertically, vertically or horizontally, between the first outdoor heat exchanger and the second outdoor heat exchanger The axial projection of the dividing line coincides with the radial line of the external fan.

Optionally, the overall volume of the second outdoor heat exchanger is greater than or equal to the overall volume of the first outdoor heat exchanger.

Optionally, the first throttling device includes a capillary tube and an on-off valve, or an electronic expansion valve; and/or,

The second throttling device includes a capillary tube and an on-off valve, or an electronic expansion valve.

Optionally, it also includes a dehumidification controller, which is used to send an opening command to the second throttling device and control the conduction of different valve ports of the four-way valve to make the air conditioner enter the first mode or the second mode, or A closing command is sent to the second throttle device to cause the air conditioner to enter a third mode.

Optionally, the first mode is a constant temperature dehumidification mode, the second mode is an enhanced cooling mode, and the third mode is a normal cooling mode.

The air conditioning system provided by the embodiments of the present disclosure can achieve the following technical effects:

When the first refrigerant circulation circuit is in the passage state, the air conditioner can realize the basic refrigeration function; when both the first refrigerant circulation circuit and the second refrigerant circulation circuit are in the passage state, the air conditioner can realize the constant temperature dehumidification function. Moreover, the diversion of the refrigerant circulation in the air conditioner is simple and reasonable, and the manufacturing cost is low.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

FIG. 1 is a schematic diagram of refrigerant circulation in an air conditioning system provided in an embodiment of the present disclosure in an enhanced refrigeration mode;

FIG. 2 is a schematic diagram of a refrigerant circulation in a constant temperature dehumidification mode of an air conditioning system provided by an embodiment of the present disclosure;

3 is a layout of the first indoor heat exchanger and the second indoor heat exchanger in the indoor body provided by the embodiment of the present disclosure;

FIG. 4 is another arrangement of the first indoor heat exchanger and the second indoor heat exchanger in the indoor body provided by the embodiment of the present disclosure.

Reference number:

11: The first indoor heat exchanger; 12: The first outdoor heat exchanger; 13: The first throttle device; 21: The second indoor heat exchanger; 22: The second outdoor heat exchanger; 23: The second throttle device; 24: four-way valve; 31: indoor body; 32: compressor; 33: indoor fan.

Detailed ways

In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the purposes of implementing the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientations shown in the drawings or Positional relationship. These terms are primarily used to better describe the embodiments of the present disclosure and embodiments thereof, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation. In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific situations.

In addition, the terms "arranged", "connected" and "fixed" should be construed broadly. For example, "connection" may be a fixed connection, a detachable connection, or a unitary construction; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediary, or two devices, elements or Internal connectivity between components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and/or B, means: A or B, or, A and B three relationships.

It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments may be combined with each other in the case of no conflict.

1-4, an embodiment of the present disclosure provides an air conditioning system, including an indoor body 31, an outdoor body, a compressor 32, a first circulation component and a second circulation component. The compressor 32 is arranged in the outdoor body; the first circulation component includes the first indoor heat exchanger 11, the first outdoor heat exchanger 12 and the first throttle device 13; the first circulation component is connected with the compressor 32 to form the first circulation component. A refrigerant circulation loop, wherein the first indoor heat exchanger 11 is communicated with the air return port of the compressor 32, and the first outdoor heat exchanger 12 is communicated with the exhaust port of the compressor 32; the above-mentioned second circulation component includes a second indoor heat exchanger The heat exchanger 21, the second outdoor heat exchanger 22, the second throttling device 23 and the four-way valve 24; the second circulation component is connected with the compressor 32 to form a second refrigerant circulation loop; wherein, the first indoor heat exchanger 11 It is installed in the indoor body 31 together with the second indoor heat exchanger 21 .

With the air conditioning system provided by the embodiments of the present disclosure, when the first refrigerant circulation loop is in the passage state, the air conditioner can realize the basic refrigeration function; when both the first refrigerant circulation loop and the second refrigerant circulation circuit are in the passage state, the air conditioner can realize the basic refrigeration function. Constant temperature dehumidification function. Moreover, the diversion of the refrigerant circulation in the air conditioner is simple and reasonable, and the manufacturing cost is low.

In some embodiments, as shown in FIG. 1 and FIG. 2 (the direction of the arrow in the figure represents the flow direction of the refrigerant), in the first refrigerant circulation loop, the high temperature and high pressure gaseous refrigerant enters the first refrigerant from the discharge port of the compressor 32 In the outdoor heat exchanger 12, the refrigerant exchanges heat with the outdoor air and releases heat, and then flows into the first indoor heat exchanger 11, and the refrigerant exchanges heat with the air blown through the first indoor heat exchanger 11 and absorbs air heat, and finally It flows into the compressor 32 through the return port of the compressor 32 . In this way, the refrigeration function can be realized by the first refrigerant circulation circuit.

In the second refrigerant circulation loop, when the A valve port and the B valve port, the C valve port and the D valve port of the four-way valve 24 are connected, the high temperature and high pressure gaseous refrigerant flows out from the exhaust port of the compressor 32, and passes through the The C valve port and the D valve port of the four-way valve 24 enter the second outdoor heat exchanger 22, exchange heat with the outdoor air in the second outdoor heat exchanger 22 and release heat, and then flow into the second indoor heat exchanger 21. The refrigerant exchanges heat with the air blown through the second indoor heat exchanger 21 and absorbs air heat, and finally flows into the compressor 32 from the return port of the compressor 32 through the B valve port and the A valve port of the four-way valve 24 in sequence. When the A valve port and D valve port, B valve port and C valve port of the four-way valve 24 are connected, the high temperature and high pressure gaseous refrigerant enters the second indoor heat exchanger 21 from the exhaust port of the compressor 32, and the refrigerant and flow After the air heat exchange in the second indoor heat exchanger 21 and release heat to heat the air, then the refrigerant enters the second outdoor heat exchanger 22 and exchanges heat with the outdoor air and absorbs heat, and finally passes through the D valve of the four-way valve 24. The port and the A valve port flow into the compressor 32 from the return port of the compressor 32 .

In some embodiments, the first throttling device 13 includes a capillary tube and an on-off valve, or an electronic expansion valve; and/or, the second throttling device 23 includes a capillary tube and an on-off valve, or an electronic expansion valve. The throttling device is mainly used to adjust the refrigerant flow and air conditioning system pressure of the first refrigerant circulation loop and the second refrigerant circulation loop.

Optionally, the first throttle device 13 and the second throttle device 23 may further include a throttle valve and a thermal expansion valve.

Optionally, between the first indoor heat exchanger 11 and the first outdoor heat exchanger 12, and between the second indoor heat exchanger 21 and the second outdoor heat exchanger 22 are sequentially connected an electronic expansion valve, an on-off valve and a capillary tube. .

In the above embodiment, further, the electronic expansion valve may be electromagnetic or electric.

In some embodiments, the air conditioning system further includes a dehumidification controller. The dehumidification controller is used to send an opening command to the second throttling device 23 and control the conduction of different valve ports of the four-way valve 24 to make the air conditioner enter the first mode or the second mode, or send a closing command to the second throttling device 23 to Put the air conditioner into the third mode. In this way, the throttling device is turned on after receiving the opening command from the dehumidification controller, so that the second refrigerant circulation loop becomes the open state; the throttling device is closed after receiving the closing command from the dehumidification controller, so that the second refrigerant circulation The refrigerant circulation circuit is turned off.

In the above embodiment, optionally, the dehumidification controller can receive the first sensing signal of the air conditioner remote control, and after receiving the first sensing signal, send an opening instruction to the second throttling device 23 and control the four-way valve 24 The corresponding valve port is turned on. In this way, the air conditioner can be conveniently entered into the first mode through the air conditioner remote control.

In the above embodiment, optionally, the dehumidification controller can receive the second sensing signal of the air conditioner remote controller, and after receiving the second sensing signal, send an opening command to the second throttling device 23 and control the four-way valve 24 The corresponding valve port is turned on. In this way, the air conditioner can be conveniently entered into the second mode through the air conditioner remote control.

In the above embodiment, optionally, the dehumidification controller can receive the third sensing signal of the air conditioner remote control, and after receiving the third sensing signal, send a closing instruction to the second throttling device 23, so that the second refrigerant circulation loop truncate. In this way, the air conditioner can be easily entered into the third mode through the air conditioner remote control.

In some embodiments, the first mode is a constant temperature dehumidification mode, the second mode is an enhanced cooling mode, and the third mode is a normal cooling mode.

Exemplarily, in the third mode, the first refrigerant circulation loop is in a passage state and the second refrigerant circulation loop is in a cut-off state. In this mode, the air conditioner reduces the indoor temperature through the first indoor heat exchanger 11. At this time, the first mode is called Ordinary refrigeration mode; in the second mode, the first refrigerant circulation circuit is in the channel state, and at the same time, the A valve port and the B valve port, the C valve port and the D valve port of the four-way valve 24 in the second refrigerant circulation circuit are connected. The lower air conditioner reduces the indoor temperature through the first indoor heat exchanger 11 and the second indoor heat exchanger 21 at the same time. At this time, the second mode is called the enhanced refrigeration mode; in the first mode, the first refrigerant circulation In the second refrigerant circulation loop, the A valve port and D valve port, B valve port and C valve port of the four-way valve 24 are connected. In this mode, the refrigerant absorbs the heat of the air passing through the first indoor heat exchanger 11 to reduce the air temperature. The water vapor in the indoor air is dehumidified when it is condensed and condensed, and the refrigerant in the second indoor heat exchanger 21 releases heat to heat the dehumidified low-temperature air, and finally the dehumidified and heated air is blown into the room in turn. At this time, the third mode is called For constant temperature dehumidification mode.

In some embodiments, as shown in FIG. 3 , the first indoor heat exchanger 11 and the second indoor heat exchanger 21 are arranged at intervals along the direction of the air duct of the indoor body 31 . In this way, the air in the air duct first passes through the first indoor heat exchanger 11, then passes through the second indoor heat exchanger 21, and finally is blown into the room through the cross-flow fan.

In the above embodiment, optionally, when the state of the air conditioner is the normal cooling mode, the air in the air duct first passes through the first indoor heat exchanger 11, and the refrigerant in the first indoor heat exchanger 11 exchanges heat with the air and absorbs heat Heat; since the second refrigerant circulation loop is in a cut-off state, there is no refrigerant circulation in the second indoor heat exchanger 21, so the temperature of the air blowing through the second indoor heat exchanger 21 does not change, and finally only exchanges heat with the first indoor heat exchanger The air in which the heat exchange has occurred in the device 11 is blown into the room by the indoor fan 33 .

In the above embodiment, optionally, when the state of the air conditioner is the enhanced cooling mode, when the air in the air duct first passes through the first indoor heat exchanger 11, the refrigerant in the first indoor heat exchanger 11 exchanges heat with the air and Absorb heat; since the A valve port, B valve port, C valve port and D valve port of the four-way valve 24 in the second refrigerant circulation loop are connected, if part of the air exchanges heat with the first indoor heat exchanger 11, the temperature remains the same. If the target temperature preset by the user is not reached, the part of the air is blown towards the second indoor heat exchanger 21 and performs secondary cold and heat exchange therewith, which can further ensure that the temperature of the air blown into the room reaches the target temperature.

In the above embodiment, optionally, when the air conditioning state is in the constant temperature dehumidification mode, the first indoor heat exchanger 11 absorbs the heat of the indoor air, and the water vapor in the indoor air condenses to achieve dehumidification; A valve port and D valve port, B valve port and C valve port of the through valve 24 are connected, the refrigerant in the second indoor heat exchanger 21 can release heat, and the dehumidified low-temperature air is blown to the second indoor heat exchanger. 21 and be heated, and finally the air after cooling, dehumidification and heating is blown into the room. In this way, the indoor temperature does not change and the purpose of air dehumidification can be achieved.

Further, the overall volume of the first indoor heat exchanger 11 is greater than or equal to the overall volume of the second indoor heat exchanger 21 . Since the first indoor heat exchanger 11 and the second indoor heat exchanger 21 are arranged at intervals along the air duct of the indoor body 31, the wind in the air duct must first pass through the first indoor heat exchanger 11 and then pass through the second indoor heat exchange Since the overall volume of the first indoor heat exchanger 11 is greater than or equal to the overall volume of the second indoor heat exchanger 21, this can improve the dehumidification effect and prevent the wind in some air ducts from blowing to the second room without being dehumidified Heat exchanger 21.

In some embodiments, as shown in FIG. 4 , the first indoor heat exchanger 11 and the second indoor heat exchanger 21 are arranged side by side along the axial direction of the indoor fan 33 of the indoor body 31 .

In the above embodiment, optionally, when the air conditioning state is in the constant temperature dehumidification mode, since the first indoor heat exchanger 11 and the second indoor heat exchanger 21 are arranged side by side along the axial direction of the indoor fan 33 of the indoor body 31, the air The air in the channel passes through the first indoor heat exchanger 11 and the second indoor heat exchanger 21 at the same time, the air passing through the first indoor heat exchanger 11 is dehumidified and the temperature is lowered when it is condensed, and the air passing through the second indoor heat exchanger 21 is dehumidified. It is heated but the humidity does not change, so that the dehumidified and cooled air is mixed with the heated air and blown into the room.

In the above embodiment, optionally, the inner fan 33 includes a first fan and a second fan. The first inner fan is arranged corresponding to the position of the first indoor heat exchanger 11 , and the second inner fan is arranged corresponding to the position of the second indoor heat exchanger 21 . In this way, under the action of the first inner fan, the air in the air duct quickly passes through the first indoor heat exchanger 11 for cooling and dehumidification; under the action of the second inner fan, the air in the air duct quickly passes through the second indoor heat exchanger 21 Heating is performed, and finally the dehumidified and cooled air is mixed with the heated air and blown into the room.

Further, the indoor fan 33 also includes a motor controller, which is electrically connected to the indoor humidity sensor and the indoor temperature sensor of the air conditioner, and can control the first indoor fan and the second indoor fan respectively according to the feedback signals of the indoor humidity sensor and the indoor temperature sensor. The rotation state of the second internal fan.

Exemplarily, when the indoor temperature is 20° C. and the indoor humidity is 60%, the constant temperature dehumidification function of the air conditioner is turned on, and the target humidity preset by the user is 40%. If the indoor humidity sensor detects that the indoor humidity has not fallen to the target humidity after the air conditioner works with the constant temperature dehumidification function for 15 minutes, the indoor humidity sensor sends a feedback signal to the motor controller, and the motor controller controls the first after receiving the feedback signal. An indoor fan increases the rotation speed, so that the air in the air duct quickly passes through the first indoor heat exchanger 11, and the fast passing air is efficiently cooled and dehumidified under the action of the first indoor heat exchanger 11, which improves the dehumidification efficiency. If the indoor humidity sensor detects that the indoor humidity has dropped to the target humidity after the air conditioner works with the constant temperature dehumidification function for 15 minutes, the indoor humidity sensor sends a feedback signal to the motor controller, and the motor control sensor controls the first after receiving the feedback signal. The internal fan stops rotating. During the process of the air conditioner performing the constant temperature dehumidification function, if the indoor temperature sensor detects that the indoor temperature is lower than 20°C, the indoor temperature sensor sends a feedback signal to the motor controller, and the motor controller receives the feedback signal and controls the second indoor fan to increase The rotation speed enables the air in the air duct to quickly pass through the second indoor heat exchanger 21 and be heated, so that more heated air enters the room and increases the indoor temperature.

In some embodiments, the first outdoor heat exchanger 12 and the second outdoor heat exchanger 22 are jointly disposed in the outdoor body, and the first outdoor heat exchanger 12 and the second outdoor heat exchanger 22 are along the air duct of the outdoor body The exhaust directions are arranged at intervals.

In the above embodiment, optionally, when the air conditioning state is in the constant temperature and dehumidification mode, since the first refrigerant circulation loop is in the channel state, the refrigerant in the first outdoor heat exchanger 12 releases heat into the air; The A valve port and D valve port, B valve port and C valve port of the four-way valve 24 in the circulation loop are connected, and the refrigerant in the second outdoor heat exchanger 22 absorbs the heat of the air passing through itself; The heat exchanger 12 and the second outdoor heat exchanger 22 are arranged at intervals along the direction of the air duct of the outdoor body, and the wind in the air duct must first pass through the first outdoor heat exchanger 12 and be heated, and then pass through the second outdoor heat exchanger 22 And be cooled, so that the air in the air duct is heated and cooled in turn and finally discharged out of the air duct, which can reduce the temperature of the air discharged from the air conditioner to the outside.

Further, the overall volume of the second outdoor heat exchanger 22 is greater than or equal to the overall volume of the first outdoor heat exchanger 12 . In this way, it is ensured that the air heated by the first outdoor heat exchanger 12 can be cooled efficiently by the second outdoor heat exchanger 22, thereby improving the cooling effect of the air discharged from the air duct.

In some embodiments, the first outdoor heat exchanger 12 and the second outdoor heat exchanger 22 are disposed together in the outdoor body, and the first outdoor heat exchanger 12 and the second outdoor heat exchanger 22 are vertically up and down or along the Set horizontally and side by side.

In the above embodiment, optionally, when the air conditioning state is in the constant temperature and dehumidification mode, since the first refrigerant circulation loop is in the channel state, the refrigerant in the first outdoor heat exchanger 12 releases heat into the air; The A valve port and D valve port, B valve port and C valve port of the four-way valve 24 in the circulation loop are connected, and the refrigerant in the second outdoor heat exchanger 22 absorbs the heat of the air passing through itself; The heat exchanger 12 and the second outdoor heat exchanger 22 are arranged side by side vertically or horizontally, and the air heated by the first outdoor heat exchanger 12 and the air cooled by the second outdoor heat exchanger out of the air duct.

Further, the external fan of the outdoor body is an axial flow fan, and the axial projection of the boundary line between the first outdoor heat exchanger 12 and the second outdoor heat exchanger 22 coincides with the radial line of the external fan. In this way, the first outdoor heat exchanger 12 and the second outdoor heat exchanger 22 arranged vertically side by side or horizontally side by side can make the air in the air duct pass through them quickly under the blowing action of the outdoor fan.

Optionally, for the first outdoor heat exchanger 12 and the second outdoor heat exchanger 22 arranged side by side in the outdoor body vertically up and down or horizontally left and right, the outdoor fan may include a first outdoor fan and a second outdoor fan, The first outdoor fan is arranged corresponding to the position of the first outdoor heat exchanger 12 , and the second outdoor fan is arranged corresponding to the position of the second outdoor heat exchanger 22 .

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples represent only possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

An air conditioning system, comprising:

Indoor body and outdoor body;

a compressor, arranged in the outdoor body;

The first circulation assembly includes a first indoor heat exchanger, a first outdoor heat exchanger and a first throttling device; the first circulation assembly is connected with the compressor to form a first refrigerant circulation loop, wherein the first circulation The indoor heat exchanger is communicated with the air return port of the compressor, and the first outdoor heat exchanger is communicated with the exhaust port of the compressor;

The second circulation assembly includes a second indoor heat exchanger, a second outdoor heat exchanger, a second throttling device and a four-way valve; the second circulation assembly is connected with the compressor to form a second refrigerant circulation loop;

Wherein, the first indoor heat exchanger and the second indoor heat exchanger are jointly arranged in the indoor body.
The air-conditioning system according to claim 1, wherein the arrangement of the first indoor heat exchanger and the second indoor heat exchanger in the indoor body is at least one of the following:

The first indoor heat exchanger and the second indoor heat exchanger are arranged at intervals along the direction of the air duct of the indoor body; or,

The first indoor heat exchanger and the second indoor heat exchanger are arranged side by side along the axial direction of the indoor fan of the indoor body.
The air conditioning system according to claim 2, wherein, for the first indoor heat exchanger and the second indoor heat exchanger arranged side by side along the axial direction of the indoor fan of the indoor body, the inner The fan includes a first internal fan and a second internal fan, wherein the first internal fan is set corresponding to the position of the first indoor heat exchanger, and the second internal fan is set corresponding to the position of the second indoor heat exchanger .
The air conditioning system according to claim 2, wherein the overall volume of the first indoor heat exchanger is greater than or equal to the overall volume of the second indoor heat exchanger.
The air-conditioning system according to claim 1 or 2, wherein the first outdoor heat exchanger and the second outdoor heat exchanger are jointly arranged in the outdoor body, and in the outdoor body The setting method is at least one of the following:

The first outdoor heat exchanger and the second outdoor heat exchanger are arranged at intervals along the direction of the air duct of the outdoor body; or,

The first outdoor heat exchanger and the second outdoor heat exchanger are vertically arranged side by side; or,

The first outdoor heat exchanger and the second outdoor heat exchanger are arranged side by side in the lateral direction.
The air-conditioning system according to claim 5, wherein the external fan of the outdoor body is an axial flow fan;

For the first outdoor heat exchanger and the second outdoor heat exchanger that are arranged side by side vertically, vertically or horizontally, between the first outdoor heat exchanger and the second outdoor heat exchanger The axial projection of the dividing line coincides with the radial line of the outer fan.
The air conditioning system according to claim 5, wherein the overall volume of the second outdoor heat exchanger is greater than or equal to the overall volume of the first outdoor heat exchanger.
The air conditioning system according to claim 1, wherein the first throttling device comprises a capillary tube and an on-off valve, or an electronic expansion valve; and/or,

The second throttling device includes a capillary tube and an on-off valve, or an electronic expansion valve.
The air conditioning system according to claim 8, further comprising a dehumidification controller, the dehumidification controller is configured to send an opening command to the second throttling device and control the conduction of different valve ports of the four-way valve to make the air conditioner Enter the first mode or the second mode, or send a closing command to the second throttle device to make the air conditioner enter the third mode.
The air conditioning system according to claim 9, wherein the first mode is a constant temperature dehumidification mode, the second mode is an enhanced cooling mode, and the third mode is a normal cooling mode.