CN112856625A

CN112856625A - Air conditioner, control method of air conditioner, and computer-readable storage medium

Info

Publication number: CN112856625A
Application number: CN201911179278.9A
Authority: CN
Inventors: 张楗雄; 路会同
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2021-05-28

Abstract

The invention discloses an air conditioner, a control method of the air conditioner and a computer readable storage medium, wherein the air conditioner comprises: the energy storage loop comprises a compressor, a first heat exchanger, a second heat exchanger and a first pipe, wherein the first pipe is sequentially connected with an output port of the compressor, the first heat exchanger, the second heat exchanger and a suction port of the compressor; the first energy sending loop comprises an energy sending heat exchanger, and the energy sending heat exchanger is used for conveying the energy of the second heat exchanger to the indoor; and a second energy transmission circuit including a second pipe and a third heat exchanger provided on the second pipe, the second pipe having a first end and a second end, the first end and the second end being connected to the first pipe, and the first end and the second end being connected to a pipeline between the compressor and the second heat exchanger. The technical scheme of the invention can simultaneously store and send energy, and reduce the waiting time of a user.

Description

Air conditioner, control method of air conditioner, and computer-readable storage medium

Technical Field

The present invention relates to the field of air conditioning technologies, and in particular, to an air conditioner, a control method of the air conditioner, and a computer-readable storage medium.

Background

The existing cold-storage or heat-storage air conditioner needs to firstly carry out cold/heat storage, and can start air supply under the condition that the cold/heat storage amount reaches a certain value. Therefore, on the premise of not performing cold/heat accumulation in advance, the system can realize the air supply function only by waiting for a period of time after the system is started, and real simultaneous energy storage (cold/heat accumulation) and energy supply (namely indoor refrigeration or heating) cannot be realized, so that the waiting time of a user is too long.

Disclosure of Invention

The invention mainly aims to provide an air conditioner, which aims to realize simultaneous energy storage and energy delivery and reduce the waiting time of a user.

In order to achieve the above object, the present invention provides an air conditioner, comprising:

the energy storage loop comprises a compressor, a first heat exchanger, a second heat exchanger and a first pipe, wherein the first pipe is sequentially connected with an output port of the compressor, the first heat exchanger, the second heat exchanger and a suction port of the compressor;

the first energy sending loop comprises an energy sending heat exchanger, and the energy sending heat exchanger is used for conveying the energy of the second heat exchanger to the indoor; and the number of the first and second groups,

a second energy transfer circuit including a second pipe and a third heat exchanger provided on the second pipe, the second pipe having a first end and a second end, the first end and the second end being connected to the first pipe, and the first end and the second end being connected to a pipeline between the compressor and the second heat exchanger.

Optionally, the energy storage circuit further comprises a mixing device, the mixing device having a mixing cavity, and a first connection port, a second connection port and a third connection port which are communicated with the mixing cavity; the first connection port is communicated with the first pipe, the second connection port is communicated with the second end, and the third connection port is communicated with a suction port of the compressor.

Optionally, the mixing device comprises a mixing tank having the first connection port, the second connection port, and the third connection port.

Optionally, the first connection port and the second connection port are both located below the third connection port.

Optionally, the first tubing has a tap point connected to the first end, the second end being connected to a conduit between the tap point and the compressor;

the diversion point is provided with a three-way valve, the first end is communicated with the first piping through the three-way valve, the three-way valve can conduct the first piping and the second piping, and/or the three-way valve can conduct the first piping and the compressor.

Optionally, the first tubing has a diversion point connected to the first end, the first tubing further has a junction point connected to the second end, the junction point being located on a conduit between the diversion point and the compressor;

the energy storage loop further comprises a first electromagnetic valve, and the first electromagnetic valve is arranged on the second piping; alternatively, the first and second electrodes may be,

the energy storage loop further comprises a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is arranged on the second distribution pipe, and the second electromagnetic valve is arranged on the first distribution pipe and located on a pipeline between the flow dividing point and the merging point.

Optionally, the air conditioner includes a housing, a heat exchange air duct is formed in the housing, the energy supply heat exchanger and the third heat exchanger are disposed close to each other, and the energy supply heat exchanger and the third heat exchanger are both disposed in the heat exchange air duct.

Optionally, the first energy delivery loop further comprises an energy taking heat exchanger and a water pump, and the energy taking heat exchanger, the water pump and the energy delivery heat exchanger are sequentially connected;

the air conditioner also comprises an energy storage box, and the second heat exchanger and the energy taking heat exchanger are both arranged in the energy storage box.

The invention also provides a control method of the air conditioner, wherein the air conditioner is the air conditioner;

the control method of the air conditioner comprises the following steps:

receiving a refrigeration instruction;

determining that the cold accumulation amount in the energy storage box is insufficient, opening the compressor and the second energy transmission loop, and closing the first energy transmission loop; and/or the presence of a gas in the gas,

receiving a heating instruction;

and determining that the heat storage amount in the energy storage box is insufficient, opening the compressor and the second energy supply loop, and closing the first energy supply loop.

The present invention also proposes a computer readable storage medium having stored thereon an air conditioner processing program which, when executed by a controller, implements the steps of the control method of an air conditioner as described above.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic piping diagram of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic view of another circuit of the air conditioner of the present invention;

FIG. 3 is a flowchart illustrating an embodiment of a method for controlling an air conditioner according to the present invention;

fig. 4 is another flow chart of the control method of the air conditioner according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				11	Compressor	21	Energy-taking heat exchanger
12	First heat exchanger	22	Energy-supply heat exchanger
				13	Second heat exchanger	23	Water pump
14	First piping	31	Second piping
				15	Throttling element	311	First end
16	Three-way valve	312	Second end
				17	Mixing device	32	Third heat exchanger
171	Hybrid cavity	40	Energy storage tank
				172	First connecting port	41	Energy storage cavity
173	Second connecting port	50	Heat circulation device
				174	Third connecting port

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an air conditioner.

In an embodiment of the present invention, as shown in fig. 1 and 2, an air conditioner includes:

the energy storage loop comprises a compressor 11, a first heat exchanger 12, a second heat exchanger 13 and a first pipe 14, wherein the first pipe 14 is sequentially connected with an output port of the compressor 11, the first heat exchanger 12, the second heat exchanger 13 and a suction port of the compressor 11;

a first energy sending loop comprising an energy sending heat exchanger 22, wherein the energy sending heat exchanger 22 is used for conveying the energy of the second heat exchanger 13 to the indoor; and

and a second energy transmission circuit including a second pipe 31 and a third heat exchanger 32 provided in the second pipe 31, wherein the second pipe 31 has a first end 311 and a second end 312, the first end 311 and the second end 312 are connected to the first pipe 14, and the first end 311 and the second end 312 are connected to a pipeline between the compressor 11 and the second heat exchanger 13.

In one embodiment, the first energy transmission loop further includes an energy-taking heat exchanger 21 and a water pump 23, and the energy-taking heat exchanger 21, the water pump 23 and the energy transmission heat exchanger 22 are sequentially connected to form a closed loop. Wherein, the energy-taking heat exchanger 21 exchanges heat with the second heat exchanger 13, and transfers the heat or cold obtained by the exchange to the energy-transmitting heat exchanger 22, and the energy-transmitting heat exchanger 22 transmits the cold or heat to the indoor. The first energy transmission loop comprises an energy transmission pipeline which is connected with the energy taking heat exchanger 21, the water pump 23 and the energy transmission heat exchanger 22, and heat exchange liquid, such as water or ethanol and the like, is filled in the energy transmission pipeline to continuously and circularly flow under the action of the water pump 23 so as to continuously transmit the cold energy or the heat energy of the second heat exchanger 13 to the energy transmission heat exchanger 22. In this embodiment, the energy-taking heat exchanger 21 and the energy-sending heat exchanger 22 are fin-tube heat exchangers, light-tube heat exchangers, plate heat exchangers, or the like.

The air conditioner also comprises an energy storage tank 40, and the second heat exchanger 13 and the energy-taking heat exchanger 21 are both arranged in the energy storage tank 40. In this embodiment, the energy storage tank 40 is a structure having an energy storage chamber 41, and the energy storage chamber 41 is filled with energy storage liquid, specifically, the energy storage liquid is water or ethylene glycol. The second heat exchanger 13 and the energy-taking heat exchanger 21 are both soaked in the energy storage liquid, the second heat exchanger 13 refrigerates or heats the energy storage liquid, and the energy storage liquid transmits cold or heat to the energy-taking heat exchanger 21. In addition, in other embodiments, a phase change material may be disposed within the energy storage tank 40.

In this embodiment, the second heat exchanger 13 and the energy-taking heat exchanger 21 may be disposed at an interval, or the second heat exchanger 13 and the energy-taking heat exchanger 21 are disposed alternately, for example, a heat exchange tube of the energy-taking heat exchanger 21 is interposed between heat exchange tubes of two sections of the second heat exchanger 13. Similarly, the second heat exchanger 13 and the energy-extracting heat exchanger 21 are in the form of finned tube heat exchangers, light tube heat exchangers or plate heat exchangers.

Specifically, in the cooling mode, the first heat exchanger 12 functions as a condenser, and the second heat exchanger 13 functions as an evaporator. The refrigerant discharged from the output port of the compressor 11 passes through the first heat exchanger 12 and the second heat exchanger 13 in sequence and then flows back to the suction port of the compressor 11. Since the first pipe 14 is also connected in parallel to the second energy transmission circuit, the refrigerant is split into two flows after flowing out of the second heat exchanger 13, one flow flows from the first pipe 14 between the second heat exchanger 13 and the compressor 11 to the suction port of the compressor 11, and the other flow flows through the second energy transmission circuit, passes through the second pipe 31 and the third heat exchanger 32, and flows back to the suction port of the compressor 11. In the process, the second heat exchanger 13 refrigerates the energy storage liquid in the energy storage tank 40, so that the energy storage liquid stores a large amount of cold energy, for example, the energy storage liquid can be frozen. When a large amount of cold is not accumulated in the energy storage tank 40 (for example, when the air conditioner is started, the ice in the energy storage tank 40 is insufficient or the ice in the energy storage tank 40 runs out), the temperature of the refrigerant in the first energy transmission circuit that is used for cooling by the energy storage tank 40 is high, and the energy transmission heat exchanger 22 on the first energy transmission circuit has a poor indoor cooling effect. In view of this problem, in the embodiment of the present invention, in the cooling mode, since part of the refrigerant is distributed to the second energy transmission loop, the third heat exchanger 32 of the second energy transmission loop can cool the room to achieve the decrease of the room temperature, so that the problem of cool air supply due to the fact that a large amount of cold energy is not accumulated in the energy storage tank 40 can be solved, and the user experience is improved.

In the cooling mode, the refrigerant first stores cold in the second heat exchanger 13 and then enters the third heat exchanger 32 to send cold, so as to achieve the purpose of storing cold and sending cold simultaneously. The arrows in fig. 1 indicate the flow direction of the refrigerant in the cooling mode.

In the heating mode, the first heat exchanger 12 functions as an evaporator, and the second heat exchanger 13 functions as a condenser. The refrigerant discharged from the discharge port of the compressor 11 passes through the second heat exchanger 13 and the first heat exchanger 12 in sequence, and then flows back to the suction port of the compressor 11 again. In this heating process, when the second energy supply circuit is opened, the first pipe 14 also distributes a part of refrigerant to the second energy supply circuit, that is, a part of refrigerant flowing out of the compressor 11 is divided into two streams, wherein one stream of refrigerant flows back to the suction port of the compressor 11 after passing through the second heat exchanger 13 and the first heat exchanger 12 in sequence. The other refrigerant flows through the second energy transmission circuit, passes through the second pipe 31 and the third heat exchanger 32, flows to the first pipe 14, is combined with the previous refrigerant, flows through the second heat exchanger 13 and the first heat exchanger 12, and flows back to the suction port of the compressor 11.

In addition, in this process, the second heat exchanger 13 heats the energy storage fluid in the energy storage tank 40, so that the energy storage fluid stores a large amount of heat. When a large amount of heat is not accumulated in the energy storage tank 40 (for example, when the air conditioner is started or during the operation of the air conditioner, the amount of heat accumulated in the energy storage tank 40 is small), the temperature of the refrigerant in the first energy transmission circuit heated by the energy storage tank 40 is low, and the energy transmission heat exchanger 22 on the first energy transmission circuit has a poor effect of raising the temperature of the indoor space. In view of the above problem, in the embodiment of the present invention, in the heating mode, since part of the refrigerant is distributed to the second energy transmission circuit, the third heat exchanger 32 of the second energy transmission circuit can heat the room to raise the room temperature, so that the problem of unheated air supply due to the fact that a large amount of heat is not accumulated in the energy storage tank 40 can be solved, and the user experience is improved.

In one embodiment, the accumulator circuit further comprises a mixing device 17, the mixing device 17 having a mixing cavity 171, and a first connection port 172, a second connection port 173 and a third connection port 174 communicating with the mixing cavity 171; the first connection port 172 communicates with the first pipe 14, the second connection port 173 communicates with the second end 312, and the third connection port 174 communicates with a suction port of the compressor 11. Optionally, the mixing device 17 comprises a mixing tank having the first connection port 172, the second connection port 173 and the third connection port 174. Of course, the mixing device 17 may have a tubular structure, a cylindrical structure, or the like.

In the cooling mode, the refrigerant passes through the compressor 11 and then becomes high-temperature high-pressure gas, after heat exchange is performed by the first heat exchanger 12, the refrigerant becomes high-temperature high-pressure liquid at the outlet of the first heat exchanger 12, and the refrigerant liquid is depressurized and cooled by the throttling element 15 arranged on the first piping 14 and then becomes low-temperature low-pressure gas-liquid mixture. Then the refrigerant exchanges heat in the second heat exchanger 13 to perform a cold storage process. When the refrigerant is still in the low-temperature gas-liquid two-phase region, the refrigerant flows out of the second heat exchanger 13 and is then divided into two paths through the three-way valve 16, one path enters the second piping 31, and the refrigerant continuously exchanges heat through the cold-sending heat exchanger, transfers cold energy to air and becomes medium-temperature superheated gas. The refrigerant in the superheated state coming out of the cooling heat exchanger and the non-superheated refrigerant flowing out of the other path of the three-way valve 16 are changed into a low-temperature and low-pressure superheated gas in the mixing device 17 and then enter the compressor 11 to be compressed, thereby completing one cycle. The mixing device 17 is arranged so that the two refrigerants can be mixed with each other and it is ensured that the refrigerant flowing from the mixing device 17 to the compressor 11 is in a gaseous state.

In one embodiment, the first connection port 172 and the second connection port 173 are both located below the third connection port 174. The two refrigerants thus flowing into the mixing device 17 are introduced from the bottom of the mixing device 17, and the two refrigerants are sufficiently mixed at the bottom of the mixing device 17 and change the liquid refrigerant into a gas. And the refrigerant flowing out of the mixing device 17 flows out from the top of the mixing device 17, so that the flowing refrigerant is ensured to be the refrigerant which is fully mixed, and the liquid refrigerant is gathered at the bottom of the mixing device 17 by virtue of gravity, so that the outlet is arranged at the top to prevent the liquid refrigerant from flowing out.

In order to control the on/off of the second pipe 31, in an embodiment, the first pipe 14 has a branch point connected to the first end 311, and the second end 312 is connected to a pipeline between the branch point and the compressor 11. The diversion point is provided with a three-way valve 16, the first end 311 is communicated with the first pipe 14 through the three-way valve 16, the three-way valve 16 can conduct the first pipe 14 and the second pipe 31, and/or the three-way valve 16 can conduct the first pipe 14 and the compressor 11. After the three-way valve 16 is arranged, the on-off of different openings of the three-way valve 16 can be controlled, and the conduction of each pipeline is realized. For example, when it is necessary to cool the room and it is detected that the amount of cold stored in the accumulator tank 40 is insufficient, the compressor 11 is turned on and the first pipe 14 and the second pipe 31 are connected so that the refrigerant is cooled by the second heat exchanger 13 to the accumulator tank 40 and the refrigerant is also cooled by the third heat exchanger 32 to the room. In this process, the three-way valve 16 can disconnect the first pipe 14 from the compressor 11, and the entire refrigerant flowing out of the second heat exchanger 13 can flow to the second pipe 31, thereby improving the cooling effect on the room. Of course, the three-way valve 16 can simultaneously conduct the first pipe 14 and the second pipe 31, and the first pipe 14 and the compressor 11, so that part of the refrigerant flowing out of the second heat exchanger 13 flows to the second pipe 31, and the other part flows directly to the mixing device 17. If the indoor cooling is not necessary and only the cold storage is performed, the second pipe 31 and the first pipe 14 are disconnected from each other, and at this time, all the refrigerant flowing out of the second heat exchanger 13 flows directly to the mixing device 17. When the indoor heating is needed, the flowing direction of the refrigerant is opposite to that of the refrigerating, and the description is omitted here.

In order to control the on/off of the second pipe 31, in an embodiment, the following method may be adopted: the first pipe 14 has a branch point connected to the first end 311, and the first pipe 14 further has a junction point connected to the second end 312, the junction point being located on a pipeline between the branch point and the compressor 11. A mixing device 17 is provided at the point of confluence. The accumulator circuit further includes a first electromagnetic valve provided in the second pipe 31; alternatively, the accumulator circuit further includes a first solenoid valve disposed in the second pipe 31 and a second solenoid valve disposed in the first pipe 14 and located in the pipeline between the branch point and the junction point. By providing the first electromagnetic valve, the first electromagnetic valve can be opened or closed as needed, and the second pipe 31 can be opened or closed. Through setting up the second solenoid valve, can open or close the second solenoid valve as required equally to realize the break-make of second heat exchanger 13 and compressor 11.

In order to better send the cold or heat into the room, in one embodiment, the air conditioner further comprises a thermal circulation device 50, and the thermal circulation device 50 is used for sending the cold or heat of the third heat exchanger 32 into the room; and/or the heat circulating device 50 is used for sending the cold or heat of the energy sending heat exchanger 22 into the room. In the embodiment of the present invention, the third heat exchanger 32 and the energy transmitting heat exchanger 22 can share the same heat circulating device 50, for example, the heat circulating device 50 is an air blowing device, and the third heat exchanger 32 and the energy transmitting heat exchanger 22 are provided in a flow path of an air flow formed by the air blowing device. Therefore, the arrangement of the thermal circulation device 50 and the air duct can be reduced, and the structure of the whole machine is favorably simplified. Or in other embodiments, different thermal cyclers 50 are used for the third heat exchanger 32 and the feed heat exchanger 22. In the above, the air supply device is a fan. The air supply device directly blows the heat or cold of the third heat exchanger 32 and the energy supply heat exchanger 22 to the indoor, so that the room temperature is raised or lowered. In addition, the heat cycle device 50 may be a water cycle device, and the third heat exchanger 32 and the energy supply heat exchanger 22 supply heat or cold to the indoor space through the circulating water flowing in the water cycle device.

Specifically, the air conditioner includes a housing, a heat exchange air duct is formed in the housing, the energy supply heat exchanger 22 and the third heat exchanger 32 are disposed close to each other, and the energy supply heat exchanger 22 and the third heat exchanger 32 are both disposed in the heat exchange air duct. Thus, only one fan is needed to simultaneously supply the energy supply heat exchanger 22 and the third heat exchanger 32. In addition, the energy-supply heat exchanger 22 and the third heat exchanger 32 are arranged in a heat exchange air duct close to each other, so that the compactness of the structure can be realized.

Specifically, the air conditioner in the embodiment of the present invention has at least three operation modes, and a user may turn on any one of the three modes as required, and the following description takes cooling as an example:

first, simultaneous cold storage and cold delivery modes.

In this mode, the energy storage circuit and the second energy delivery circuit are opened, the first energy delivery circuit is closed, that is, the compressor 11 of the energy storage circuit is opened, the two paths of the three-way valve 16 are fully opened, the fan 50 is kept opened, and the water pump 23 of the first energy delivery circuit is kept closed.

The refrigerant is compressed by the compressor and then becomes a high-temperature and high-pressure gas. After heat exchange by the first heat exchanger 12, the liquid is changed into high-temperature and high-pressure liquid at the outlet of the first heat exchanger 12. The refrigerant liquid is decompressed and cooled by a throttling element and then becomes a low-temperature and low-pressure gas-liquid mixture. The refrigerant exchanges heat in the second heat exchanger 13 to perform a cold storage process. When the refrigerant is still in a low-temperature gas-liquid two-phase region, the refrigerant flows out of the second heat exchanger 13 and is then divided into two paths through the three-way valve 16, one path of the refrigerant enters the third heat exchanger 32 to continuously exchange heat, and the cold energy is transferred to air and becomes medium-temperature superheated gas. The refrigerant in the superheated state coming out of the third heat exchanger 32 and the non-superheated refrigerant flowing out of the other path of the three-way valve 16 become a low-temperature and low-pressure superheated gas in the mixing device 17, and then enter the compressor to be compressed, thereby completing one cycle.

In this mode, the refrigerant first stores cold in the second heat exchanger 13 and then enters the third heat exchanger 32 to be cooled, thereby achieving the purpose of storing cold and cooling cold simultaneously.

Second, the cold storage only mode.

In this mode, the energy storage circuit is opened, the second energy delivery circuit and the first energy delivery circuit are closed, that is, the compressor 11 of the energy storage circuit is opened, the water pump 23 of the first energy delivery circuit is kept closed, one path of the three-way valve 16 communicated with the third heat exchanger 32 is closed, and the fan 50 is kept closed.

The refrigerant is compressed by the compressor to become high-temperature high-pressure gas, after heat exchange by the first heat exchanger 12, the refrigerant liquid is changed into high-temperature high-pressure liquid at the outlet of the first heat exchanger 12, after pressure reduction and temperature reduction by the throttling element, the refrigerant liquid becomes low-temperature low-pressure gas-liquid mixture, heat exchange is carried out in the second heat exchanger 13, the cold accumulation process is carried out, and then the refrigerant enters the compressor to be compressed after passing through the mixing device 17, so as to complete a cycle.

In this mode, the refrigerant first stores cold in the second heat exchanger 13 and does not enter the third heat exchanger 32, so as to achieve the purpose of storing cold alone.

Third, independent blowing mode

In this mode, the energy storage circuit and the second energy delivery circuit are closed, the first energy delivery circuit is opened, i.e., the compressor 11 of the energy storage circuit is closed, the water pump 23 of the first energy delivery circuit remains open, and the fan 50 remains open.

The refrigerant is cooled by the cold energy in the energy storage tank in the energy taking heat exchanger, is sent into the energy sending heat exchanger 33 through a water pump, cools the air flowing through, achieves the purpose of sending cold, absorbs heat in the energy sending heat exchanger 33, and then enters the energy taking heat exchanger to be cooled, so that a cycle is completed.

Referring to fig. 3 and fig. 4 in combination, the present invention further provides a method for controlling an air conditioner, where the air conditioner is the air conditioner described above;

the control method of the air conditioner comprises the following steps:

step S10, receiving a refrigeration instruction;

step S20, determining that the cold accumulation in the energy storage box is insufficient, opening the compressor and the second energy transmission loop, and closing the first energy transmission loop; and/or the presence of a gas in the gas,

step S30, receiving a heating instruction;

and step S40, determining that the stored heat in the energy storage box is insufficient, opening the compressor and the second energy supply loop, and closing the first energy supply loop.

In the embodiment of the invention, if a refrigeration instruction is received, whether the cold accumulation amount in the energy storage box 40 is sufficient or not is determined, and the cold accumulation amount in the energy storage box 40 is insufficient, at this time, the cold accumulation needs to be performed on the energy storage box 40, so that the compressor 11 is started, and the second heat exchanger 13 is enabled to refrigerate the energy storage box 40. Meanwhile, as the cold storage amount in the energy storage tank 40 is insufficient and indoor refrigeration is needed, the second energy transmission loop is opened, so that the refrigerant flowing out of the second heat exchanger 13 flows to the second energy transmission loop, and the third heat exchanger 32 on the second energy transmission loop refrigerates the indoor. In this process, the first pipe 14 and the suction port of the compressor 11 can be disconnected from each other, and the entire refrigerant flows from the second energy transmission circuit to the suction port of the compressor 11.

If a heating instruction is received, whether the heat storage amount in the energy storage tank 40 is sufficient or not is determined, and the heat storage amount in the energy storage tank 40 is insufficient, at this time, the energy storage tank 40 needs to be stored with heat, so that the compressor 11 is started, and the second heat exchanger 13 heats the energy storage tank 40. Meanwhile, because the heat storage amount in the energy storage tank 40 is insufficient and the indoor space needs to be heated, the second energy supply loop is opened, so that the heating agent flowing out of the compressor 11 flows to the second energy supply loop, and the third heat exchanger 32 on the second energy supply loop heats the indoor space.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An air conditioner, comprising:

2. The air conditioner of claim 1, wherein the charge circuit further comprises a mixing device having a mixing cavity, and a first connection port, a second connection port, and a third connection port in communication with the mixing cavity; the first connection port is communicated with the first pipe, the second connection port is communicated with the second end, and the third connection port is communicated with a suction port of the compressor.

3. The air conditioner according to claim 2, wherein the mixing device includes a mixing tank having the first connection port, the second connection port, and the third connection port.

4. The air conditioner according to claim 2, wherein the first connection port and the second connection port are both located below the third connection port.

5. The air conditioner according to any one of claims 1 to 4, wherein the first piping has a branch point connected to the first end, and the second end is connected to a pipe between the branch point and the compressor;

the diversion point is provided with a three-way valve, and the first end is communicated with the first distribution pipe through the three-way valve; the three-way valve can communicate the first pipe and the second pipe; and/or the three-way valve can conduct the first pipe and the compressor.

6. The air conditioner according to any one of claims 1 to 4, wherein the first pipe has a branch point connected to the first end, and further has a junction point connected to the second end, the junction point being located on a pipeline between the branch point and the compressor;

7. The air conditioner of claim 1, further comprising a housing, wherein a heat exchange air duct is formed in the housing, the energy supply heat exchanger and the third heat exchanger are disposed adjacent to each other, and the energy supply heat exchanger and the third heat exchanger are both disposed in the heat exchange air duct.

8. The air conditioner according to claim 1, wherein the first energy sending loop further comprises an energy taking heat exchanger and a water pump, and the energy taking heat exchanger, the water pump and the energy sending heat exchanger are connected in sequence;

9. A control method of an air conditioner, characterized in that the air conditioner is the air conditioner according to any one of claims 1 to 8;

the control method of the air conditioner comprises the following steps:

receiving a refrigeration instruction;

receiving a heating instruction;

10. A computer-readable storage medium, characterized in that an air conditioner processing program is stored thereon, which implements the steps of the control method of an air conditioner as claimed in claim 9 when being executed by a controller.