CN117663315A

CN117663315A - Air conditioner and air conditioner control method

Info

Publication number: CN117663315A
Application number: CN202311847476.4A
Authority: CN
Inventors: 林锐源
Original assignee: Anhui Enboli Electric Appliance Co ltd
Current assignee: Anhui Enboli Electric Appliance Co ltd
Priority date: 2023-12-27
Filing date: 2023-12-27
Publication date: 2024-03-08

Abstract

The application provides an air conditioner and an air conditioner control method, and relates to the technical field of air conditioners. The air conditioner comprises a host machine component, a compression component, a heat exchange component and a liquid storage tank. After the air conditioner is heated, the refrigerant in the compression assembly still has certain heat, and the heat of the refrigerant can be exchanged with the antifreeze through the heat exchange assembly, so that the antifreeze can absorb the heat of the refrigerant, and the heat can be stored in the antifreeze. After the air conditioner is heated and started, the compression assembly drives the refrigerant to circulate through the host assembly, the temperature of the refrigerant is reduced, then the compression assembly drives the refrigerant to circulate to the heat exchange assembly again, and the antifreeze liquid absorbing heat in the liquid storage tank also circulates to the heat exchange assembly again, so that the antifreeze liquid can exchange heat with the refrigerant, and the refrigerant can absorb heat. The evaporation capacity of the refrigerant can be improved, so that the suction pressure of the refrigerant can be improved, and finally the purposes of protecting the compression assembly and reducing the energy consumption of the air conditioner can be achieved.

Description

Air conditioner and air conditioner control method

Technical Field

The application relates to an air conditioner and an air conditioner control method, and belongs to the technical field of air conditioning equipment.

Background

When the air conditioner heats in a low-temperature environment, the temperature of the refrigerant is low, and the flowing effect of the refrigerant is poor when the refrigerant is converted from a static structure to a dynamic structure, so that the refrigerant cannot flow fully. The suction pressure of the refrigerant is easy to be too low, the pressure ratio of the air conditioner is too high, the service life of the compressor is finally influenced, and the overall power consumption of the air conditioner is high.

Disclosure of Invention

The application provides an air conditioner and an air conditioner control method, which solve the problem that the refrigerant suction pressure is too low when the air conditioner heats in a low-temperature environment in the related art.

In a first aspect, the present application provides an air conditioner, comprising:

a host component;

a compression assembly in cyclical communication with the host assembly;

the heat exchange assembly is in circulating communication with the compression assembly;

the liquid storage tank is circularly communicated with the heat exchange assembly;

the compression assembly is configured to circulate a refrigerant with the host assembly or circulate a refrigerant with the heat exchange assembly, and the liquid storage tank is configured to circulate an antifreeze solution with the heat exchange assembly.

In some embodiments, the heat exchange assembly includes a first heat exchange member and a second heat exchange member;

the compression assembly is in circulating communication with the first heat exchange piece through a first circulating pipeline, the compression assembly is in circulating communication with the second heat exchange piece through a second circulating pipeline, the main assembly is arranged in the second circulating pipeline, and the compression assembly is configured to drive a refrigerant to flow back to the compression assembly after sequentially passing through the main assembly and the second heat exchange piece;

The liquid storage tank is in circulating communication with the first heat exchange piece through a third circulating pipeline, and the liquid storage tank is in circulating communication with the second heat exchange piece through a fourth circulating pipeline.

In some embodiments, the system further comprises a first drive pump and a second drive pump, the first drive pump being disposed in the third circulation line, the second drive pump being disposed in the fourth circulation line;

the compression assembly is configured to be communicable or disconnectable from the first circulation line, and the compression assembly is further configured to be communicable or disconnectable from the second circulation line;

the liquid storage tank is configured to be communicable or disconnectable with the third circulation line, and the liquid storage tank is also configured to be communicable or disconnectable with the fourth circulation line.

In some embodiments, the air conditioner further comprises a temperature detecting member and a pressure detecting member, the temperature detecting member is disposed in the liquid storage tank, the pressure detecting member is disposed in the second circulation line, and the pressure detecting member is located between the main unit assembly and the return end of the compression assembly.

In a second aspect, the present application provides an air conditioner control method, which is applicable to the above air conditioner, the air conditioner control method including:

After the air conditioner is heated, the compression assembly and the heat exchange assembly circulate refrigerant, and the liquid storage tank and the heat exchange assembly circulate antifreeze fluid so that heat of the refrigerant is conducted to the antifreeze fluid;

after the air conditioner is heated and started, the compression assembly and the host assembly circulate the refrigerant, the compression assembly and the heat exchange assembly circulate the refrigerant, and the liquid storage tank and the heat exchange assembly circulate the antifreeze fluid, so that the heat of the antifreeze fluid is conducted to the refrigerant.

In some embodiments, the heat exchange assembly comprises a first heat exchange member and a second heat exchange member, the compression assembly is in cyclic communication with both the first heat exchange member and the second heat exchange member, and the liquid storage tank is in cyclic communication with both the first heat exchange member and the second heat exchange member;

after the air conditioner heats, compression subassembly with heat transfer subassembly circulation refrigerant, the liquid reserve tank with heat transfer subassembly circulation antifreeze, so that the heat conduction of refrigerant reaches antifreeze, include:

the compression assembly and the first heat exchange piece circulate refrigerant, and the liquid storage tank and the first heat exchange piece circulate antifreeze fluid;

After the air conditioner is heated and started, after the compression assembly and the host assembly circulate the refrigerant, the compression assembly and the heat exchange assembly circulate the refrigerant, and the liquid storage tank and the heat exchange assembly circulate the antifreeze, so that the heat of the antifreeze is conducted to the refrigerant, and the air conditioner comprises:

after the compression assembly and the host assembly circulate the refrigerant, the compression assembly and the second heat exchange piece circulate the refrigerant, and the liquid storage tank and the second heat exchange piece circulate the antifreeze fluid.

In some embodiments, the liquid storage device further comprises a temperature detection piece, wherein the temperature detection piece is arranged on the liquid storage tank and is used for detecting the temperature of the antifreeze liquid in the liquid storage tank;

after the compression assembly circulates the refrigerant with the first heat exchange member, and the liquid storage tank circulates the antifreeze fluid with the first heat exchange member, the air conditioner detection method further comprises the following steps:

acquiring a first temperature of the antifreeze fluid through the temperature detection piece;

comparing the first temperature with a first preset temperature;

and when the first temperature is higher than the first preset temperature, stopping the compression assembly and the first heat exchange piece from circulating the refrigerant, and stopping the liquid storage tank and the second heat exchange piece from circulating the antifreeze fluid.

In some embodiments, after the stopping the compression assembly from circulating the refrigerant with the first heat exchange member and stopping the tank from circulating the antifreeze fluid with the second heat exchange member, the air conditioner control method further includes:

acquiring a second temperature of the antifreeze fluid through the temperature detection piece;

comparing the second temperature with a second preset temperature;

and when the second temperature is lower than the second preset temperature, starting the compression assembly and the first heat exchange piece to circulate the refrigerant, and starting the liquid storage tank and the second heat exchange piece to circulate the antifreeze fluid.

In some embodiments, the air conditioner further comprises a pressure detecting member configured to detect a suction pressure of the refrigerant circulating between the compression assembly and the second heat exchanging member;

before the compression assembly and the second heat exchange member circulate the refrigerant, and before the liquid storage tank and the second heat exchange member circulate the antifreeze solution, the air conditioner control method further comprises the following steps:

acquiring a first suction pressure of the refrigerant through the pressure detection part, and acquiring a third temperature of the antifreeze through the temperature detection part;

comparing the first suction pressure with the first preset suction pressure and comparing the third temperature with the second preset temperature;

When the first suction pressure is smaller than the first preset pressure and the third temperature is not lower than the second preset temperature, the compression assembly and the second heat exchange piece circulate refrigerant, and the liquid storage tank and the second heat exchange piece circulate antifreeze fluid.

In some embodiments, after the compression assembly circulates the refrigerant with the second heat exchange member, the liquid storage tank circulates the antifreeze solution with the second heat exchange member, the air conditioner control method further includes:

acquiring a second suction pressure of the refrigerant through the pressure detection part, and acquiring a fourth temperature of the antifreeze through the temperature detection part;

comparing the second suction pressure with the second preset suction pressure and comparing the fourth temperature with a third preset temperature;

and when the second suction pressure is smaller than the second preset pressure or the fourth temperature is lower than the third preset temperature, the liquid storage tank and the second heat exchange piece stop circulating the antifreeze fluid.

In the air conditioner provided by the application, the compression assembly is circularly communicated with the host assembly, so that the refrigerant can circulate between the compression assembly and the host assembly, and the refrigerant can absorb heat and release heat, thereby realizing the heating function of the air conditioner. The compression assembly is also in circulation communication with the heat exchange assembly, so that the compression assembly can drive the cooling liquid to circulate in the heat exchange assembly, and the liquid storage tank is in circulation communication with the heat exchange assembly, so that the antifreeze in the liquid storage tank can circulate in the heat exchange assembly. After the air conditioner is heated, the refrigerant in the compression assembly still has certain heat, and the heat of the refrigerant can be exchanged with the antifreeze through the heat exchange assembly, so that the antifreeze can absorb the heat of the refrigerant, and the heat can be stored in the antifreeze. After the air conditioner is heated and started, the compression assembly drives the refrigerant to circulate through the host assembly, the temperature of the refrigerant is reduced, then the compression assembly drives the refrigerant to circulate to the heat exchange assembly again, and the antifreeze liquid absorbing heat in the liquid storage tank also circulates to the heat exchange assembly again, so that the antifreeze liquid can exchange heat with the refrigerant, and the refrigerant can absorb heat. The evaporation capacity of the refrigerant can be improved, so that the suction pressure of the refrigerant can be improved, and finally the purposes of protecting the compression assembly and reducing the energy consumption of the air conditioner can be achieved.

The air conditioner control method can be applied to the air conditioner, waste heat of the refrigerant after the air conditioner is heated can be absorbed by the antifreeze, after the air conditioner is heated and started again, the antifreeze can transmit heat back to the refrigerant, so that the suction pressure of the refrigerant can be improved, and finally, the purposes of protecting a compression assembly and reducing the energy consumption of the air conditioner can be achieved.

Drawings

The foregoing and other objects, features and advantages of embodiments of the present application will become more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. Embodiments of the present application will now be described, by way of example and not limitation, in the figures of the accompanying drawings, in which:

fig. 1 is a schematic view of an air conditioner according to an embodiment of the present application;

fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present application;

fig. 3 is a flowchart of S110 of a control method of an air conditioner according to an embodiment of the present application;

fig. 4 is a flowchart of S210 of a control method of an air conditioner according to an embodiment of the present application;

fig. 5 is a flowchart of S120-S140 of a control method of an air conditioner according to an embodiment of the present application;

fig. 6 is a flowchart of S150-S170 of a control method of an air conditioner according to an embodiment of the present application;

Fig. 7 is a flowchart of S210-S240 of a control method of an air conditioner according to an embodiment of the present application;

fig. 8 is a flowchart of S250-S270 of a control method of an air conditioner according to an embodiment of the present application.

Reference numerals:

100-host assembly, 110-indoor heat exchanger, 120-indoor fan, 130-expansion valve, 140-outdoor heat exchanger, 150-outdoor fan,

200-compression assembly, 210-compressor, 220-fifth on-off valve,

300-heat exchange assembly, 310-first heat exchange member, 320-second heat exchange member,

400-a liquid storage tank, 410-a temperature detection piece,

510-first circulation pipeline, 511-first switch valve, 512-pressure detection piece, 513-gas-liquid separator, 520-second circulation pipeline, 521-second switch valve, 530-third circulation pipeline, 531-third switch valve, 532-first driving pump, 540-fourth circulation pipeline, 541-fourth switch valve, 542-second driving pump.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The air conditioner and the air conditioner control method provided by the application are described in detail below with reference to specific embodiments.

An air conditioner is provided in an embodiment of the present application, and referring to fig. 1, the air conditioner includes a main unit assembly 100, a compression assembly 200, a heat exchange assembly 300, and a liquid storage tank 400.

The host assembly 100 and the compression assembly 200 are basic components of the air conditioner, the host assembly 100 and the compression assembly 200 are in circulation communication, and a refrigerant is arranged in a pipeline where the compression assembly 200 and the host assembly 100 circulate, so that the refrigerant can circulate between the host assembly 100 and the compression assembly 200. The compression assembly 200 can change the volume of the refrigerant, so that the refrigerant absorbs and releases heat through the volume change in the circulating process between the compression assembly 200 and the host assembly 100, thereby achieving the refrigerating and heating functions of the air conditioner.

The compression assembly 200 is also in circulation communication with the heat exchange assembly 300, and after the refrigerant flows back into the compression assembly 200 through the host assembly 100, the compression assembly 200 can also drive the refrigerant to circulate between the compression assembly 200 and the heat exchange assembly 300, so that the compression assembly 200 can drive the refrigerant to flow through the heat exchange assembly 300. The anti-freezing liquid is stored in the liquid storage tank 400, the heat absorption and heat release performances of the anti-freezing liquid are better, and the liquid storage tank 400 is circularly communicated with the heat exchange assembly 300, so that the anti-freezing liquid in the liquid storage tank 400 can flow through the heat exchange assembly 300. After the compression assembly 200 circulates the refrigerant to the heat exchange assembly 300 and the antifreeze in the liquid storage tank 400 circulates to the heat exchange assembly 300, the refrigerant and the antifreeze in the heat exchange assembly 300 can conduct heat to realize heat exchange.

In the related art, after the air conditioner finishes heating, the refrigerant in the compressor 210 still has a certain residual heat due to the compression effect of the compressor 210, and the heat of the refrigerant can be naturally emitted, so that the residual heat of the refrigerant is wasted.

In this application, after the heating of the air conditioner is finished, the refrigerant with waste heat can flow into the heat exchange assembly 300 in a circulating way under the action of the compression assembly 200, and at the same time, the antifreeze in the liquid storage tank 400 can also flow into the heat exchange assembly 300 in a circulating way. The refrigerant with waste heat and the antifreeze can exchange heat when flowing in the heat exchange assembly 300, so that the heat of the refrigerant can be conducted to the antifreeze through the heat exchange assembly 300, the antifreeze can flow back into the liquid storage tank 400 for storage after absorbing the heat of the refrigerant, the heat of the refrigerant can be stored in the liquid storage tank 400 through the antifreeze, and the refrigerant can flow back to the compression assembly 200 after being conducted to the antifreeze.

After the air conditioner is turned on, the compression assembly 200 can apply work to the refrigerant, so that the refrigerant can circulate through the host assembly 100. After the refrigerant passes through the main unit 100, the suction pressure of the refrigerant is low before the refrigerant is re-compressed by the compression unit 200 without being returned. The compression assembly 200 can drive the refrigerant to circulate to the heat exchange assembly 300 again, and accordingly, the antifreeze solution stored with the residual heat of the refrigerant in the liquid storage tank 400 can circulate to the heat exchange assembly 300 again, so that the refrigerant and the antifreeze solution can exchange heat again, and the heat of the antifreeze solution can be conducted to the refrigerant. Like this the refrigerant can absorb heat for the suction pressure of refrigerant improves, and the back flows back to compression set 200 after the suction pressure of refrigerant improves, can reduce compression set 200 to the pressure ratio of refrigerant around the refrigerant acting, thereby can reduce compression set 200's energy consumption, thereby play protection compression set 200, and reduce the purpose of the energy consumption of this application's air conditioner.

In some embodiments, referring to fig. 1, the host assembly 100 of the present application may specifically further include an indoor heat exchanger 110, an indoor fan 120, an expansion valve 130, an outdoor heat exchanger 140, and an outdoor fan 150. The compression assembly 200 is in sequential, cyclic communication with the indoor heat exchanger 110 and the outdoor heat exchanger 140. The indoor fan 120 is disposed at one side of the indoor heat exchanger 110, and an air inlet end of the indoor fan 120 may face the indoor heat exchanger 110, and an air outlet end of the indoor fan 120 may face the indoor environment. The outdoor fan 150 is disposed at one side of the outdoor heat exchanger 140, and an air inlet end of the outdoor fan 150 may face the outdoor heat exchanger 140, and an air outlet end of the outdoor fan 150 may face the outdoor environment. After the compression assembly 200 performs compression work on the refrigerant, the refrigerant may first pass through the indoor heat exchanger 110, and the refrigerant may release heat, and blow hot air into the indoor environment through the indoor fan 120. The refrigerant may then pass through the expansion valve 130 to the outdoor heat exchanger 140, and the outdoor fan 150 may blow the hot air at the outdoor heat exchanger 140 to the outdoor environment. Finally, the refrigerant can return to the compression assembly 200 after passing through the heat exchange assembly 300, and the refrigerant can absorb heat when passing through the heat exchange assembly 300, so that the suction pressure of the refrigerant is increased.

In some embodiments, referring to fig. 1, a heat exchange assembly 300 of the present application may be specifically configured to include a first heat exchange member 310 and a second heat exchange member 320. The compression assembly 200 may be in circulation communication with the first heat exchange member 310 through the first circulation line 510, so that the compression assembly 200 may circulate the refrigerant with the first heat exchange member 310 through the first circulation line 510. The liquid storage tank 400 is in circulation communication with the first heat exchange member 310 through the third circulation line 530, so that the liquid storage tank 400 can circulate the antifreeze solution with the first heat exchange member 310 through the third circulation line 530. Specifically, after the heating of the air conditioner is finished, the refrigerant with the waste heat can circularly flow into the first heat exchange member 310 under the action of the compression assembly 200, and at the same time, the antifreeze in the liquid storage tank 400 can also circularly flow into the first heat exchange member 310. The refrigerant with waste heat and the antifreeze can exchange heat when flowing in the first heat exchange part 310, so that the heat of the refrigerant can be conducted to the antifreeze through the first heat exchange part 310, the antifreeze can flow back to the liquid storage tank 400 for storage after absorbing the heat of the refrigerant, the heat of the refrigerant can be stored in the liquid storage tank 400 through the antifreeze, and the refrigerant can flow back to the compression assembly 200 after being conducted to the antifreeze.

The compression assembly 200 may be in circulation communication with the second heat exchange member 320 through the second circulation line 520 such that the compression assembly 200 may circulate a refrigerant with the second heat exchange member 320 through the second circulation line 520. The liquid storage tank 400 is in circulation communication with the second heat exchanging element 320 through the fourth circulation line 540, so that the liquid storage tank 400 can circulate the antifreeze solution with the second heat exchanging element 320 through the fourth circulation line 540. Specifically, after the heating of the air conditioner is finished, the compression assembly 200 can apply work to the refrigerant, so that the refrigerant can circulate through the host assembly 100. After the refrigerant passes through the main unit 100, and before the refrigerant flows back to the compression unit 200 and is compressed again by the compression unit 200, the suction pressure of the refrigerant is low. The compression assembly 200 can drive the refrigerant to circulate to the second heat exchange member 320, and accordingly, the antifreeze fluid stored with the residual heat of the refrigerant in the liquid storage tank 400 can circulate to the second heat exchange member 320 again, so that the refrigerant and the antifreeze fluid can exchange heat again, and the heat of the antifreeze fluid can be conducted to the refrigerant. Like this the refrigerant can absorb heat for the suction pressure of refrigerant improves, and the back flows back to compression set 200 after the suction pressure of refrigerant improves, can reduce compression set 200 to the pressure ratio of refrigerant around the refrigerant acting, thereby can reduce compression set 200's energy consumption, thereby play protection compression set 200, and reduce the purpose of the energy consumption of this application's air conditioner.

The compression assembly 200 may be configured to include a compressor 210 and a fifth switching valve 220, and an output end of the compressor 210 may be configured to be in communication with the first circulation line 510 and the second circulation line 520, respectively, and the fifth switching valve 220 may be disposed on a line connected to an output end of the compressor 210.

In this application, through setting up heat exchange assembly 300 to including first heat transfer piece 310 and second heat transfer piece 320, can make the heat conduction of refrigerant to the process of antifreeze, and the heat conduction of antifreeze to the process of refrigerant can go on in different pipeline and heat transfer device respectively to can make the heat conduction of refrigerant to the process of antifreeze and the heat conduction of antifreeze to the process of refrigerant can go on mutually independent, prevent two processes mutual interference.

In some embodiments, referring to fig. 1, the host assembly 100 in the present application may be disposed in the second circulation line 520, such that the compression assembly 200, the host assembly 100, and the second heat exchange member 320 may pass through the second circulation line 520, and the compression assembly 200, the host assembly 100, and the second heat exchange member 320 are disposed in sequence. Thus, the refrigerant can pass through the main unit 100 after being output from the compression assembly 200, and then pass through the second heat exchange member 320, and finally flow back to the compression assembly 200. Therefore, when the refrigerant is input into the main unit 100 from the compression unit 200 and passes through the main unit 100, the suction pressure of the refrigerant is low, and then the refrigerant can pass through the second heat exchange member 320, and the antifreeze with a certain amount of heat in the liquid storage tank 400 can flow to the second heat exchange member 320 through the fourth circulation pipeline 540 in a circulating manner, so that the heat of the antifreeze can be transferred to the refrigerant, and the suction pressure of the refrigerant is increased.

Through setting up host computer subassembly 100 and second heat transfer member 320 in second circulation pipeline 520, can make the refrigerant pass through second heat transfer member 320 after host computer subassembly 100 directly, can simplify the pipeline of the air conditioner of this application like this, make the structure of air conditioner compacter relatively.

The second circulation line 520 may further be provided with a gas-liquid separator 513, and the gas-liquid separator 513 may separate a gas portion and a liquid portion in the refrigerant.

In some embodiments, referring to fig. 1, the compression assembly 200 of the present application may be connected or disconnected from both the first circulation line 510 and the second circulation line 520. When the air conditioner is finished, the compression assembly 200 can be arranged to be communicated with the first circulation pipeline 510, and the compression assembly 200 is disconnected from the second circulation pipeline 520, so that the compression assembly 200 can drive the refrigerant to circulate in the first circulation pipeline 510 only. When the air conditioner is turned on, the compression assembly 200 may be disposed in communication with the second circulation line 520, and the compression assembly 200 is disconnected from the first circulation line 510, so that the compression assembly 200 may drive the refrigerant to circulate only in the second circulation line 520.

Specifically, a first switch valve 511 may be disposed on the first circulation line 510, a second switch valve 521 may be disposed on the second circulation line 520, the first switch valve 511 may connect or disconnect the first circulation line 510, and the second switch valve 521 may connect or disconnect the second circulation line 520.

The air conditioner of the present application may further include a first driving pump 532 and a second driving pump 542, wherein the first driving pump 532 is disposed in the third circulation line 530, and the second driving pump 542 is disposed in the fourth circulation line 540. The first driving pump 532 may circulate the antifreeze in the tank 400 in the third circulation line 530, and the second driving pump 542 may circulate the antifreeze in the tank 400 in the fourth circulation line 540.

The liquid storage tank 400 may be further connected to or disconnected from the third circulation line 530 and the fourth circulation line 540, so that when the antifreeze and the refrigerant in the liquid storage tank 400 exchange heat in the first heat exchange member 310, and the antifreeze flows back into the liquid storage tank 400, the liquid storage tank 400 may be disconnected from the third circulation line 530, so that the antifreeze may be stored in the liquid storage tank 400. The liquid storage tank 400 may adopt a heat insulation structure, so that less heat is dissipated from the antifreeze stored in the liquid storage tank 400, and thus when the air conditioner is restarted, the antifreeze in the liquid storage tank 400 has higher heat, so that the heat of the antifreeze which can be conducted to the refrigerant is also higher, and the suction pressure of the refrigerant after passing through the second heat exchange member 320 is higher.

Specifically, the third circulation pipeline 530 may be provided with a third switching valve 531, the fourth circulation pipeline 540 may be provided with a fourth switching valve 541, the third switching valve 531 may connect or disconnect the third circulation pipeline 530, and the fourth switching valve 541 may connect or disconnect the fourth circulation pipeline 540. The surface of the liquid storage tank 400 may be provided with a heat insulating member, such as heat insulating cotton, and the surface of the liquid storage tank 400 is coated by the heat insulating cotton, so that heat dissipation of the antifreeze in the liquid storage tank 400 can be reduced.

In some embodiments, referring to fig. 1, the air conditioner of the present application may further include a temperature detecting member 410 and a pressure detecting member 512, wherein the temperature detecting member 410 may be disposed at the liquid storage tank 400, and the temperature detecting member 410 may detect the temperature of the antifreeze in the liquid storage tank 400. The pressure detecting element 512 is disposed in the second circulation line 520, and the pressure detecting element 512 can detect the suction pressure of the refrigerant passing through the second circulation line 520.

Specifically, after the refrigerant and the antifreeze solution exchange heat in the first heat exchange member 310, the temperature of the antifreeze solution may be increased, and after the temperature detection member 410 detects the temperature of the antifreeze solution, if the temperature of the antifreeze solution reaches the preset temperature, it indicates that the temperature of the antifreeze solution is higher, so that the refrigerant and the antifreeze solution do not need to exchange heat continuously. The temperature detecting member 410 can also continuously detect the temperature of the antifreeze in the liquid storage tank 400, and if the air conditioner is not heated for a long time, the antifreeze is stored in the liquid storage tank 400 for a long time, so that the heat of the antifreeze is gradually dissipated to cool. After the temperature detecting member 410 detects that the temperature of the antifreeze in the liquid storage tank 400 is lower than a certain temperature, the compressor 210 can be turned on, so that the high-temperature refrigerant can pass through the first heat exchanging member 310 again. The third switch valve 531 may open the third circulation pipeline 530, and the liquid tank 400 may be communicated with the third circulation pipeline 530, so that the antifreeze fluid with reduced temperature in the liquid tank 400 may enter the first heat exchange member 310 again to exchange heat with the high-temperature refrigerant, so that the temperature of the antifreeze fluid may be increased again. After the temperature of the antifreeze liquid is increased, the antifreeze liquid can flow back into the liquid storage tank 400 and be stored in the liquid storage tank 400.

The pressure sensing element 512 is disposed between the return ends of the host assembly 100 and the compression assembly 200. After the air conditioner is turned on to heat, the refrigerant flows through the second circulation pipeline 520 and passes through the main unit 100, and the pressure detecting element 512 detects the suction pressure of the refrigerant. If the pressure detecting element 512 detects that the suction pressure of the refrigerant is high without exchanging heat with the antifreeze, the fourth switch valve 541 does not need to be opened, so that the antifreeze with a certain amount of heat stored in the liquid storage tank 400 does not need to circulate in the fourth pipeline, and the heat of the antifreeze can be saved. When the pressure detecting member 512 detects that the suction pressure of the refrigerant is low and heat exchange with the antifreeze is required, the fourth switch valve 541 is opened, so that the antifreeze with a certain amount of heat stored in the liquid storage tank 400 can circulate in the fourth pipeline, and the refrigerant can exchange heat with the antifreeze to increase the suction pressure of the antifreeze.

The embodiment of the application also provides a control method of the air conditioner, and referring to fig. 2, the method can be applied to the air conditioner. The method specifically comprises the following steps:

s100, after heating of the air conditioner is finished, the compression assembly and the heat exchange assembly circulate the refrigerant, and the liquid storage tank and the heat exchange assembly circulate the antifreeze so that heat of the refrigerant is conducted to the antifreeze.

S200, after the air conditioner is heated and started, the compression assembly and the main machine assembly circulate the refrigerant, the compression assembly and the heat exchange assembly circulate the refrigerant, and the liquid storage tank and the heat exchange assembly circulate the antifreeze, so that the heat of the antifreeze is conducted to the refrigerant.

Specifically, after the air conditioning heating is finished, the refrigerant in the compression assembly 200 still has a certain amount of heat, and the heat of the refrigerant can be exchanged with the antifreeze through the heat exchange assembly 300, so that the antifreeze can absorb the heat of the refrigerant, and the heat can be stored in the antifreeze. After the air conditioner is turned on, the compression assembly 200 drives the refrigerant to circulate through the host assembly 100, the temperature of the refrigerant is reduced, and then the compression assembly 200 drives the refrigerant to circulate to the heat exchange assembly 300 again, and the antifreeze fluid absorbing heat in the liquid storage tank 400 also circulates to the heat exchange assembly 300 again, so that the antifreeze fluid can exchange heat with the refrigerant, and the refrigerant can absorb heat. The evaporation capacity of the refrigerant can be improved, so that the suction pressure of the refrigerant can be improved, and finally the purposes of protecting the compression assembly 200 and reducing the energy consumption of the air conditioner can be achieved.

In some embodiments, referring to fig. 3, after the heat exchange assembly 300 is configured to include the first heat exchange member 310 and the second heat exchange member 320, S100 in the present application, after the air conditioner finishes heating, the compression assembly and the heat exchange assembly circulate the refrigerant, and the liquid storage tank and the heat exchange assembly circulate the antifreeze fluid, so that the heat of the refrigerant is conducted to the antifreeze fluid, which may specifically include:

S110, the compression assembly and the first heat exchange piece circulate refrigerant, and the liquid storage tank and the first heat exchange piece circulate antifreeze fluid.

Specifically, the compression assembly 200 circulates the refrigerant through the first circulation line 510 and the first heat exchange member 310, and the tank 400 circulates the antifreeze fluid through the third circulation line 530 and the first heat exchange member 310.

Referring to fig. 4, S200 in the present application, after the air conditioner heats and opens, after the compression assembly and the main unit assembly circulate the refrigerant, the compression assembly and the heat exchange assembly circulate the refrigerant, and the liquid storage tank and the heat exchange assembly circulate the antifreeze, so that the heat of the antifreeze is conducted to the refrigerant, and specifically may include:

s210, after the compression assembly and the host assembly circulate the refrigerant, the compression assembly and the second heat exchange piece circulate the refrigerant, and the liquid storage tank and the second heat exchange piece circulate the antifreeze fluid.

Specifically, the compression assembly 200 circulates the refrigerant through the second circulation line 520 and the second heat exchange member 320, and the accumulator 400 circulates the antifreeze fluid through the fourth circulation line 540 and the second heat exchange member 320.

In some embodiments, referring to fig. 5, after S110, the air conditioner control method of the present application further includes:

s120, acquiring a first temperature of the antifreeze fluid through a temperature detection piece;

s130, comparing the first temperature with a first preset temperature;

And S140, stopping the compression assembly and the first heat exchange piece from circulating the refrigerant and stopping the liquid storage tank and the first heat exchange piece from circulating the antifreeze fluid when the first temperature is higher than a first preset temperature.

Specifically, when the first temperature of the antifreeze is greater than the first preset temperature, it means that the antifreeze absorbs enough heat and has a higher temperature, and at this time, the first drive pump 532 and the third switching valve 531 may be closed, so that the antifreeze may be stored in the liquid storage tank 400, so that the antifreeze may be thermally insulated in the liquid storage tank 400.

In some embodiments, referring to fig. 6, after S140, the air conditioner control method of the present application further includes:

s150, obtaining a second temperature of the antifreeze fluid through a temperature detection piece;

s160, comparing the second temperature with a second preset temperature;

s170, when the second temperature is lower than a second preset temperature, starting the compression assembly and the first heat exchange piece to circulate the refrigerant, and starting the liquid storage tank and the first heat exchange piece to circulate the antifreeze fluid.

Specifically, after the antifreeze exchanges heat with the refrigerant in the first heat exchange member 310, the antifreeze may be stored in the liquid storage tank 400 for a long time to lower the temperature of the antifreeze. When the second temperature of the antifreeze is reduced below the second preset temperature, it is indicated that the temperature of the antifreeze is too low. At this time, the compression assembly 200 may be opened, and the first switch valve 511, the third switch valve 531 and the first driving pump 532 are all opened, so that the compression assembly 200 may drive the refrigerant to circulate through the first heat exchange member 310 again, the first driving pump 532 may drive the antifreeze in the liquid storage tank 400 to circulate through the first heat exchange member 310 again, so that the refrigerant may exchange heat with the antifreeze, and the heat of the refrigerant may be transferred to the antifreeze, so that the temperature of the antifreeze may be increased. When the temperature of the antifreeze is increased to be higher than the first preset temperature, the antifreeze may be stored again in the liquid storage tank 400. Therefore, the antifreeze in the liquid storage tank 400 can maintain a higher temperature, so that the refrigerant can absorb the antifreeze after the air conditioner is started, and the suction pressure of the refrigerant is increased.

In some embodiments, referring to fig. 7, before S210, the air conditioner control method of the present application further includes:

s220, acquiring a first suction pressure of the refrigerant through a pressure detection part, and acquiring a third temperature of the antifreeze through a temperature detection part;

s230, comparing the first suction pressure with a first preset suction pressure, and comparing the third temperature with a second preset temperature;

s240, when the first suction pressure is smaller than the first preset pressure and the third temperature is not lower than the second preset temperature, the compression assembly and the second heat exchange piece circulate the refrigerant, and the liquid storage tank and the second heat exchange piece circulate the antifreeze fluid.

Specifically, by comparing the first suction pressure of the refrigerant with the first preset pressure, it can be determined whether the suction pressure of the refrigerant is too low, and if the suction pressure of the refrigerant is smaller than the first preset pressure, it indicates that the refrigerant needs to absorb heat to increase the suction pressure of the refrigerant. By comparing the third temperature of the antifreeze with the second preset temperature, it can be determined whether the temperature of the antifreeze is sufficiently high, and if the third temperature of the antifreeze is greater than the second preset temperature, it indicates that the antifreeze has sufficient heat to be transferred to the antifreeze so that the suction pressure of the antifreeze can be increased.

In some embodiments, referring to fig. 8, after S240, the air conditioner control method of the present application further includes:

S250, acquiring a second suction pressure of the refrigerant through a pressure detection part, and acquiring a fourth temperature of the antifreeze through a temperature detection part;

s260, comparing the second suction pressure with a second preset suction pressure, and comparing the fourth temperature with a third preset temperature;

and S270, stopping circulating the antifreeze fluid between the liquid storage tank and the second heat exchange piece when the second suction pressure is smaller than the second preset pressure or the fourth temperature is lower than the third preset temperature.

Specifically, after the refrigerant exchanges heat with the antifreeze fluid through the second heat exchange member 320, the refrigerant may absorb heat of the antifreeze fluid, so that suction pressure of the refrigerant may be increased, and temperature of the antifreeze fluid may be reduced. When the second suction pressure of the refrigerant is greater than the second preset pressure, the refrigerant has a higher suction pressure and needs to absorb heat again to increase the suction pressure. When the fourth temperature of the antifreeze is lower than the third preset temperature, the lower temperature of the antifreeze causes that the heat conducted to the refrigerant by the antifreeze can not improve the suction pressure of the refrigerant, or the value for improving the suction pressure of the refrigerant is lower. At this time, the second driving pump 542 and the fourth switching valve 541 may be closed, so that the antifreeze fluid is not circulated in the fourth circulation line 540, thereby reducing the energy consumption of the air conditioner of the present application.

In some embodiments, the first preset temperature may be set to 35 degrees celsius-45 degrees celsius, the second preset temperature may be set to 30 degrees celsius-40 degrees celsius, and the third preset temperature may be set to 0 degrees celsius-10 degrees celsius. The first preset pressure may be set to 0.4MPa to 0.58MPa, and the second preset pressure may be set to 0.58MPa to 0.8MPa.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An air conditioner, comprising:

a host component;

a compression assembly in cyclical communication with the host assembly;

2. The air conditioner of claim 1, wherein the heat exchange assembly comprises a first heat exchange member and a second heat exchange member;

3. The air conditioner of claim 2, further comprising a first drive pump and a second drive pump, the first drive pump being disposed in the third circulation line, the second drive pump being disposed in the fourth circulation line;

4. The air conditioner of claim 2, further comprising a temperature sensing member and a pressure sensing member, the temperature sensing member being disposed in the reservoir, the pressure sensing member being disposed in the second circulation line, and the pressure sensing member being located between the return ends of the main assembly and the compression assembly.

5. An air conditioner control method, characterized in that it is applied to an air conditioner according to any one of claims 1 to 4, comprising:

6. The method of claim 5, wherein the heat exchange assembly comprises a first heat exchange member and a second heat exchange member, the compression assembly is in cyclic communication with both the first heat exchange member and the second heat exchange member, and the reservoir is in cyclic communication with both the first heat exchange member and the second heat exchange member;

7. The air conditioner control method according to claim 6, further comprising a temperature detecting member provided to the liquid storage tank, the temperature detecting member being configured to detect a temperature of an antifreeze liquid in the liquid storage tank;

comparing the first temperature with a first preset temperature;

and stopping the compression assembly and the first heat exchange piece from circulating the refrigerant and stopping the liquid storage tank and the first heat exchange piece from circulating the antifreeze fluid when the first temperature is higher than the first preset temperature.

8. The air conditioner control method according to claim 7, wherein after the stopping of the compression assembly and the first heat exchanging member from circulating the refrigerant and the stopping of the tank and the second heat exchanging member from circulating the antifreeze solution, the air conditioner control method further comprises:

comparing the second temperature with a second preset temperature;

and when the second temperature is lower than the second preset temperature, starting the compression assembly and the first heat exchange piece to circulate the refrigerant, and starting the liquid storage tank and the first heat exchange piece to circulate the antifreeze fluid.

9. The air conditioner control method according to claim 8, further comprising a pressure detecting member configured to detect a suction pressure of the refrigerant circulating between the compression assembly and the second heat exchanging member;

10. The air conditioner control method according to claim 9, wherein after the compression assembly circulates the refrigerant with the second heat exchanging member, the liquid storage tank circulates the antifreeze liquid with the second heat exchanging member, the air conditioner control method further comprises: