CN116085981A

CN116085981A - Method and device for controlling air conditioner, air conditioner and storage medium

Info

Publication number: CN116085981A
Application number: CN202310012061.9A
Authority: CN
Inventors: 李克; 许文明; 王飞; 张心怡; 李阳
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-05-09

Abstract

The application discloses a method for controlling an air conditioner, the air conditioner includes: the indoor side circulation loop is sequentially provided with a water pump, an intermediate heat exchanger, a first electronic expansion valve and an indoor unit along the flow direction of a medium during refrigeration; one end of the energy storage device is connected with the medium inflow end of the first electronic expansion valve, and the other end of the energy storage device is connected with the medium inflow end of the water pump; the method comprises the following steps: determining the actual temperature of the energy storage device under the condition that the working period of the indoor unit is a first period; closing the outdoor unit and determining the target temperature of the air conditioner and the indoor environment temperature under the condition that the actual temperature of the energy storage device meets the energy release condition; and controlling the opening degree of the first electronic expansion valve and the running frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature. The control method combines the operation frequency of the water pump and the adjustment of the opening of the electronic expansion valve, and controls the flow in the circulation loop more accurately and reasonably. The application also discloses a device for controlling the air conditioner, the air conditioner and a storage medium.

Description

Method and device for controlling air conditioner, air conditioner and storage medium

Technical Field

The present application relates to the technical field of refrigeration intelligent home appliances, and for example, to a method and an apparatus for controlling an air conditioner, and a storage medium.

Background

Currently, in the application of household appliances, in order to separate the refrigerant circulation circuit and the water circulation circuit from each other, heat exchange between the two circulation circuits is achieved by an intermediate heat exchanger. Specifically, as shown in fig. 1, for example, a water pump 1, an intermediate heat exchanger 2, a first stop valve 3, and an indoor unit 4 are sequentially disposed in the water circulation loop along the water flow direction, and a compressor 5, an outdoor unit 6, a second stop valve 7, and an intermediate heat exchanger 2 are sequentially disposed in the refrigerant circulation loop along the refrigerant flow direction. The water and the refrigerant exchange heat in the intermediate heat exchanger and flow in opposite directions. However, this has a problem of low energy efficiency of the system, and is difficult to meet the use requirements of users.

In order to improve energy efficiency of a system, related art discloses a phase-change heat storage type heating system and a control method thereof, comprising: and controlling the heat storage operation of the heat accumulator, the independent heat supply of the heat accumulator, the independent hot water preparation of the heat pump, the heating of the heat pump and the combined heat supply mode of the heat accumulator, and switching control. When the first stop valve, the second stop valve, the third stop valve and the three-way valve are simultaneously included: when the heat storage mode is required to be executed, the second stop valve and the third stop valve are controlled to be opened, and the first stop valve and the three-way valve are controlled to be closed; when the heat accumulator independent heat supply mode is required to be executed, the second stop valve and the three-way valve are controlled to be opened, the second water pipeline is controlled to be communicated with the hot water outlet (communicated with the first stop valve and the third stop valve, when the heat pump heating and heat accumulator combined heat supply mode is required to be executed, the first stop valve, the second stop valve, the third stop valve and the three-way valve are controlled to be opened, the second water pipeline is controlled to be communicated with the hot water outlet, and when the heat pump independent heat supply mode is required to be executed, the first stop valve, the third stop valve and the three-way valve are controlled to be opened, the second water pipeline is controlled to be communicated with the hot water outlet, and the second stop valve is controlled to be closed.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the related art, only the opening and closing of the valve is controlled to switch the operation mode, so that the air conditioner cannot adjust the flow in the circulation loop according to the actual working condition. Therefore, no matter the flow required by the system is large or small, only the flow with the same size can be adopted, so that the energy saving is not facilitated, and the effect of improving the energy efficiency of the system is not obvious.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a method and a device for controlling an air conditioner, the air conditioner and a storage medium, so that the flow in a circulation loop is set to be more fit with the actual working condition, and the air conditioner is further energy-saving.

In some embodiments, taking a refrigeration condition as an example, the air conditioner includes: the indoor side circulation loop is sequentially provided with a water pump, an intermediate heat exchanger, a first electronic expansion valve and an indoor unit along the medium flow direction; one end of the energy storage device is connected with the medium inflow end of the first electronic expansion valve, and the other end of the energy storage device is connected with the medium inflow end of the water pump; the method comprises the following steps: determining the actual temperature of the energy storage device under the condition that the working period of the indoor unit is a first period; under the condition that the actual temperature of the energy storage device meets the energy release condition, the outdoor unit is controlled to be closed, and the target temperature of the air conditioner and the indoor environment temperature are determined; and controlling the opening degree of the first electronic expansion valve and the running frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature.

Optionally, the first period is a power consumption peak period or a user-defined period.

Optionally, under the refrigeration working condition, if T0 is less than or equal to Tup, the actual temperature of the energy storage device meets the energy release condition; under the heating working condition, if T0 is more than or equal to Tlow, the actual temperature of the energy storage device meets the energy release condition; wherein T0 is the actual temperature of the energy storage device, tup is the upper limit use temperature of the refrigeration working condition energy storage device, and Tlow is the lower limit use temperature of the heating working condition energy storage device.

Optionally, controlling the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature includes: controlling the opening degree of the first electronic expansion valve to be k1max and the running frequency of the water pump to be f1max under the condition that the I delta T I is not less than 5; controlling the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to the temperature difference between the actual temperature of the energy storage device and the limited use temperature of the energy storage device under the condition that |delta T| < 5; wherein DeltaT _{Is that} The temperature difference between the indoor environment temperature and the target temperature of the air conditioner is k1max, the maximum opening degree of the first electronic expansion valve is k1max, and f1max is the highest running frequency of the water pump.

Optionally, controlling the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to a temperature difference between the actual temperature of the energy storage device and the limited use temperature of the energy storage device includes: when the absolute value delta T is less than or equal to 2 and is less than 5, and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max multiplied by a; controlling the opening degree of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max under the conditions that the absolute value delta T is less than or equal to 2 and the dt is less than or equal to 2; when the absolute value of delta T is less than or equal to 1 and is less than 2, and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1min; controlling the opening degree of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max multiplied by a under the condition that the absolute value delta T is less than or equal to 1 and the absolute value dt is less than or equal to 2; when the absolute value of delta T is less than 1 and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max multiplied by b and the running frequency of the water pump to be f1min; when the absolute delta T is smaller than 1 and the dt is smaller than or equal to 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1min; wherein f1min is the lowest running frequency of the water pump, b is more than 0 and less than 1, and a is more than 0 and less than 1.

Alternatively, Δt=tr-Tset, tr is an indoor ambient temperature, and Tset is an air conditioner target temperature.

Optionally, the indoor side circulation loop further includes: the second electronic expansion valve is arranged between the first electronic expansion valve and the intermediate heat exchanger; the third electronic expansion valve is arranged between the water pump and the intermediate heat exchanger; the fourth electronic expansion valve is arranged between the indoor unit and the water pump; one end of the fifth electronic expansion valve is connected with the energy storage device, and the other end of the fifth electronic expansion valve is connected between the first electronic expansion valve and the second electronic expansion valve; the sixth electronic expansion valve is arranged between the energy storage device and the medium outflow end of the fourth electronic expansion valve; one end of the seventh electronic expansion valve is connected between the water pump and the third electronic expansion valve, and the other end of the seventh electronic expansion valve is connected between the energy storage device and the sixth electronic expansion valve; the method further comprises the steps of: and under the conditions that the working period of the indoor unit is a first period, the outdoor unit is closed and the working condition of the energy storage device is energy release, the second electronic expansion valve, the third electronic expansion valve and the sixth electronic expansion valve are controlled to be closed, and the opening degrees of the fourth electronic expansion valve, the fifth electronic expansion valve and the seventh electronic expansion valve are maximum.

Optionally, the air conditioner further comprises: the outdoor side circulation loop is sequentially provided with a compressor, an outdoor unit, an eighth electronic expansion valve and an intermediate heat exchanger along the refrigerant flow direction; the method further comprises the steps of: under the condition that the actual temperature of the energy storage device does not meet the energy release condition, controlling the outdoor unit to be started, and determining the target temperature of the air conditioner and the indoor environment temperature; and adjusting the opening degree of the first electronic expansion valve, the opening degree of the second electronic expansion valve, the water pump operating frequency and the compressor operating frequency according to the air conditioner target temperature and the indoor environment temperature.

In some embodiments, the apparatus comprises: a processor and a memory storing program instructions configured to perform the method for controlling an air conditioner of any one of the above embodiments when the program instructions are executed.

In some embodiments, taking a refrigeration condition as an example, the air conditioner includes: the indoor side circulation loop is sequentially provided with a water pump, an intermediate heat exchanger, a first electronic expansion valve and an indoor unit along the medium flow direction; one end of the energy storage device is connected with the medium inflow end of the first electronic expansion valve, and the other end of the energy storage device is connected with the medium inflow end of the water pump; and the apparatus for controlling an air conditioner described in any one of the above embodiments.

Optionally, the indoor side circulation loop further includes: the second electronic expansion valve is arranged between the first electronic expansion valve and the intermediate heat exchanger; the third electronic expansion valve is arranged between the water pump and the intermediate heat exchanger; the fourth electronic expansion valve is arranged between the indoor unit and the water pump; one end of the fifth electronic expansion valve is connected with the energy storage device, and the other end of the fifth electronic expansion valve is connected between the first electronic expansion valve and the second electronic expansion valve; the sixth electronic expansion valve is arranged between the energy storage device and the medium outflow end of the fourth electronic expansion valve; and one end of the seventh electronic expansion valve is connected between the water pump and the third electronic expansion valve, and the other end of the seventh electronic expansion valve is connected between the energy storage device and the sixth electronic expansion valve.

Optionally, the air conditioner further comprises: the outdoor side circulation loop is provided with a compressor, an outdoor unit, an eighth electronic expansion valve and an intermediate heat exchanger in sequence along the refrigerant flow direction.

The method for controlling the air conditioner, the device for controlling the air conditioner, the air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:

according to the embodiment of the disclosure, the opening degree of the electronic expansion valve and the operation frequency of the water pump are adjusted according to the actual working condition, so that the flow in the circulation loop is more in line with the actual working condition. Compared with the related art, the embodiment of the disclosure combines the operation frequency of the water pump and the adjustment of the opening of the electronic expansion valve, and more accurate and reasonable control is performed on the flow in the circulation loop. Therefore, the flow in the circulation loop is set to be more fit with the actual working condition, so that the air conditioner is more energy-saving, and the energy efficiency of the system is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic structural view of an air conditioner;

FIG. 2 is a schematic view of an air conditioner according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 5 is a schematic view of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

fig. 6 is a schematic view of an apparatus for controlling an air conditioner according to an embodiment of the present disclosure.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The term "plurality" means two or more, unless otherwise indicated.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

In the current household appliance applications, in order to separate the refrigerant circuit and the water circuit from each other, heat exchange between the two circuits is achieved by an intermediate heat exchanger. Specifically, as shown in fig. 1, for example, a water pump 1, an intermediate heat exchanger 2, a first stop valve 3, and an indoor unit 4 are sequentially disposed in the water circulation loop along the water flow direction, and a compressor 5, an outdoor unit 6, a second stop valve 7, and an intermediate heat exchanger 2 are sequentially disposed in the refrigerant circulation loop along the refrigerant flow direction. The water and the refrigerant exchange heat in the intermediate heat exchanger and flow in opposite directions. However, this has a problem of low energy efficiency of the system, and is difficult to meet the use requirements of users.

In order to solve the problems in the related art, the embodiment of the disclosure adjusts the opening of the electronic expansion valve and the operation frequency of the water pump according to the actual working condition, so that the flow in the circulation loop is more in line with the actual working condition. As shown in connection with fig. 2, an embodiment of the present disclosure provides an air conditioner 200. Taking a cooling condition as an example, the air conditioner 200 includes: an indoor circulation loop and an energy storage device 8. The indoor side circulation loop is sequentially provided with a water pump 1, an intermediate heat exchanger 2, a first electronic expansion valve 9 and an indoor unit 4 along the medium flow direction. One end of the energy storage device 8 is connected with the medium inflow end of the first electronic expansion valve 9, and the other end of the energy storage device 8 is connected with the medium inflow end of the water pump 1. The indoor-side circulation circuit further includes: a second electronic expansion valve 10 disposed between the first electronic expansion valve 9 and the intermediate heat exchanger 2; the third electronic expansion valve 11 is arranged between the water pump 1 and the intermediate heat exchanger 2; a fourth electronic expansion valve 12 provided between the indoor unit 4 and the water pump 1; a fifth electronic expansion valve 13, one end of which is connected with the energy storage device 8, and the other end of which is connected between the first electronic expansion valve 9 and the second electronic expansion valve 10; a sixth electronic expansion valve 14 disposed between the energy storage device 8 and the medium outlet end of the fourth electronic expansion valve 12; a seventh electronic expansion valve 15, one end of which is connected between the water pump 1 and the third electronic expansion valve 11, and the other end of which is connected between the energy storage device 8 and the sixth electronic expansion valve 14. The air conditioner further comprises an outdoor side circulation loop, and a compressor 5, an outdoor machine 6, an eighth electronic expansion valve 16 and an intermediate heat exchanger 2 are sequentially arranged along the refrigerant flow direction. In addition, the air conditioner further includes: an electronic control system (not shown) including a processor. The processor is configured to adjust the opening of the electronic expansion valve and the operation frequency of the water pump according to the actual working condition, so that the flow in the circulation loop is more in line with the actual working condition. Thus, the flow in the circulation loop is controlled more accurately and reasonably. Therefore, the flow in the circulation loop is set to be more fit with the actual working condition, so that the air conditioner is more energy-saving, and the energy efficiency of the system is improved.

In connection with the air conditioner shown in fig. 2, an embodiment of the present disclosure provides a method for controlling an air conditioner.

As shown in fig. 3, the method includes:

s301, in the case that the working period of the indoor unit is the first period, the processor determines the actual temperature of the energy storage device.

S302, when the actual temperature of the energy storage device meets the energy release condition, the processor controls the outdoor unit to be closed, and determines the target temperature of the air conditioner and the indoor environment temperature.

S303, the processor controls the opening degree of the first electronic expansion valve and the running frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature.

By adopting the method for controlling the air conditioner, which is provided by the embodiment of the disclosure, the opening degree of the electronic expansion valve and the operation frequency of the water pump are adjusted according to the actual working condition, so that the flow in the circulation loop is more in line with the actual working condition. Meanwhile, the flow in the circulation loop is controlled more accurately and reasonably by combining the operation frequency of the water pump and the adjustment of the opening of the electronic expansion valve. Therefore, the flow in the circulation loop is set to be more fit with the actual working condition, so that the air conditioner is more energy-saving, and the energy efficiency of the system is improved.

Optionally, the first period is a power consumption peak period or a user-defined period. Thus, the electricity charge is high due to the electricity consumption peak period. Therefore, the energy storage device is controlled to be started in the electricity consumption peak period or the user-defined period (the user can flexibly set according to the electricity price) so as to supply energy to the indoor unit. Therefore, the cost of the air conditioner is lower, and the use requirement of a user for the low-cost air conditioner is more loaded.

Optionally, under the refrigeration working condition, if T0 is less than or equal to Tup, the actual temperature of the energy storage device meets the energy release condition; under the heating working condition, if T0 is more than or equal to Tlow, the actual temperature of the energy storage device meets the energy release condition; wherein T0 is the actual temperature of the energy storage device, tup is the upper limit use temperature of the refrigeration working condition energy storage device, and Tlow is the lower limit use temperature of the heating working condition energy storage device. Therefore, different energy release conditions are set according to different air conditioner working conditions, and the temperature of the energy storage device can be ensured to be enough to provide electric energy for the indoor unit. So as to maintain the normal operation of the indoor unit. The running stability of the air conditioner is improved.

Optionally, controlling the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature includes: controlling the opening degree of the first electronic expansion valve to be k1max and the running frequency of the water pump to be f1max under the condition that the I delta T I is not less than 5; controlling the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to the temperature difference between the actual temperature of the energy storage device and the limited use temperature of the energy storage device under the condition that |delta T| < 5; wherein DeltaT _{Is that} The temperature difference between the indoor environment temperature and the target temperature of the air conditioner is k1max, the maximum opening degree of the first electronic expansion valve is k1max, and f1max is the highest running frequency of the water pump. Therefore, the opening of the electronic expansion valve and the running frequency of the water pump can be controlled through the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature, so that the flow in the circulation loop is more in accordance with the actual working condition. And further, the air conditioner is more energy-saving, and the energy efficiency of the system is improved.

Optionally, controlling the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to a temperature difference between the actual temperature of the energy storage device and the limited use temperature of the energy storage device includes: when the absolute value delta T is less than or equal to 2 and is less than 5, and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max multiplied by a; controlling the opening degree of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max under the conditions that the absolute value delta T is less than or equal to 2 and the dt is less than or equal to 2; when the absolute value of delta T is less than or equal to 1 and is less than 2, and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1min; controlling the opening degree of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max multiplied by a under the condition that the absolute value delta T is less than or equal to 1 and the absolute value dt is less than or equal to 2; when the absolute value of delta T is less than 1 and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max multiplied by b and the running frequency of the water pump to be f1min; when the absolute delta T is smaller than 1 and the dt is smaller than or equal to 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1min; wherein f1min is the lowest running frequency of the water pump, b is more than 0 and less than 1, and a is more than 0 and less than 1. Therefore, the opening degree of the electronic expansion valve and the operation frequency of the water pump can be adjusted according to the temperature difference between the indoor environment temperature and the target temperature of the air conditioner and the temperature difference between the actual temperature of the energy storage device and the limited use temperature of the energy storage device. Different flow rates are set according to the actual working conditions of the indoor unit. And the operation frequency of the water pump can be reduced while the opening of the electronic expansion valve is improved under the condition that the flow in the circulation loop is unchanged through the adjustment of the opening of the electronic expansion valve, so that the air conditioner can be more energy-saving.

As shown in connection with fig. 4, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:

s401, in the case that the working period of the indoor unit is the first period, the processor determines the actual temperature of the energy storage device.

S402, when the actual temperature of the energy storage device meets the energy release condition, the processor controls the outdoor unit to be closed, and determines the target temperature of the air conditioner and the indoor environment temperature.

S403, the processor controls the opening degree of the first electronic expansion valve and the running frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature.

S404, when the working period of the indoor unit is the first period, the outdoor unit is closed, and the working condition of the energy storage device is energy release, the processor controls the second electronic expansion valve, the third electronic expansion valve and the sixth electronic expansion valve to be closed, and the opening of the fourth electronic expansion valve, the fifth electronic expansion valve and the seventh electronic expansion valve are maximum.

By adopting the method for controlling the air conditioner, which is provided by the embodiment of the disclosure, the opening degree of the electronic expansion valve and the operation frequency of the water pump are adjusted according to the actual working condition, so that the flow in the circulation loop is more in line with the actual working condition. Meanwhile, the flow in the circulation loop is controlled more accurately and reasonably by combining the operation frequency of the water pump and the adjustment of the opening of the electronic expansion valve. Therefore, the flow in the circulation loop is set to be more fit with the actual working condition, so that the air conditioner is more energy-saving, and the energy efficiency of the system is improved. In addition, according to the working condition of the energy storage device, the opening degree of each electronic expansion valve is adjusted, so that the energy storage device can be switched between different working conditions. Specifically, the second electronic expansion valve, the third electronic expansion valve and the sixth electronic expansion valve are controlled to be closed, and the opening degrees of the fourth electronic expansion valve, the fifth electronic expansion valve and the seventh electronic expansion valve are the largest, so that the energy storage device can independently supply energy to the indoor unit. The overhead of the air conditioner can be reduced in the electricity price peak period.

As shown in connection with fig. 5, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:

s501, in the case that the operation period of the indoor unit is the first period, the processor determines the actual temperature of the energy storage device.

S502, when the actual temperature of the energy storage device meets the energy release condition, the processor controls the outdoor unit to be closed, and determines the target temperature of the air conditioner and the indoor environment temperature.

S503, the processor controls the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature.

S504, when the actual temperature of the energy storage device does not meet the energy release condition, the processor controls the outdoor unit to be started, and determines the target temperature of the air conditioner and the indoor environment temperature.

S505, the processor adjusts the opening degree of the first electronic expansion valve, the opening degree of the second electronic expansion valve, the operation frequency of the water pump, and the operation frequency of the compressor according to the air conditioner target temperature and the indoor environment temperature.

By adopting the method for controlling the air conditioner, which is provided by the embodiment of the disclosure, the opening degree of the electronic expansion valve and the operation frequency of the water pump are adjusted according to the actual working condition, so that the flow in the circulation loop is more in line with the actual working condition. Meanwhile, the flow in the circulation loop is controlled more accurately and reasonably by combining the operation frequency of the water pump and the adjustment of the opening of the electronic expansion valve. In addition, under the condition that the energy storage device does not meet the energy release condition, the indoor unit is powered through the work of the outdoor unit, and the opening degree of the first electronic expansion valve, the opening degree of the second electronic expansion valve, the water pump running frequency and the compressor running frequency are adjusted according to the air conditioner target temperature and the indoor environment temperature. Thereby adjusting the flow in the circuit. Therefore, the flow in the circulation loop is set to be more fit with the actual working condition, so that the air conditioner is more energy-saving, and the energy efficiency of the system is improved.

As shown in connection with fig. 6, an embodiment of the present disclosure provides an apparatus 600 for controlling an air conditioner, including a processor (processor) 601 and a memory (memory) 602. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 603 and a bus 604. The processor 601, the communication interface 603, and the memory 602 may communicate with each other via the bus 604. The communication interface 603 may be used for information transfer. The processor 601 may call logic instructions in the memory 602 to perform the method for controlling an air conditioner of the above-described embodiment.

Further, the logic instructions in the memory 602 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product.

The memory 602 is used as a storage medium for storing a software program, a computer executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 601 executes functional applications and data processing by executing program instructions/modules stored in the memory 603, i.e., implements the method for controlling an air conditioner in the above-described embodiments.

The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functionality. The storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 602 may include high-speed random access memory, and may also include non-volatile memory.

Referring to fig. 2, an embodiment of the disclosure provides an air conditioner 200, taking a refrigeration condition as an example, the air conditioner 200 includes: the indoor side circulation circuit, the energy storage device 8 and the device for controlling an air conditioner (not shown in the drawings) in the above embodiment. The indoor side circulation loop is sequentially provided with a water pump 1, an intermediate heat exchanger 2, a first electronic expansion valve 9 and an indoor unit 4 along the medium flow direction. The energy storage device 8, one end of the energy storage device 8 is connected with the medium inflow end of the first electronic expansion valve 9, and the other end of the energy storage device 8 is connected with the medium inflow end of the water pump 1. The apparatus 600 for controlling an air conditioner is installed at an air conditioner body. The mounting relationships described herein are not limited to placement within a product, but include mounting connections to other components of a product, including but not limited to physical, electrical, or signal transmission connections, etc. Those skilled in the art will appreciate that the apparatus 600 for controlling an air conditioner may be adapted to a viable product body, thereby achieving other viable embodiments.

Optionally, the indoor side circulation loop further includes: a second electronic expansion valve 10, a third electronic expansion valve 11, a fourth electronic expansion valve 12, a fifth electronic expansion valve 13, a sixth electronic expansion valve 14, and a seventh electronic expansion valve 15. The second electronic expansion valve 10 is arranged between the first electronic expansion valve 9 and the intermediate heat exchanger 2. The third electronic expansion valve 11 is arranged between the water pump 1 and the intermediate heat exchanger 2. The fourth electronic expansion valve 12 is provided between the indoor unit 4 and the water pump 1. One end of the fifth electronic expansion valve 13 is connected with the energy storage device 8, and the other end is connected between the first electronic expansion valve 9 and the second electronic expansion valve 10. The sixth electronic expansion valve 14 is arranged between the energy storage device 8 and the medium outlet of the fourth electronic expansion valve 12. The seventh electronic expansion valve 15 has one end connected between the water pump 1 and the third electronic expansion valve 11 and the other end connected between the energy storage device 8 and the sixth electronic expansion valve 14.

Optionally, the air conditioner further comprises: the outdoor circulation circuit is provided with a compressor 5, an outdoor unit 6, an eighth electronic expansion valve 16 and an intermediate heat exchanger 2 in this order along the refrigerant flow direction.

The disclosed embodiments provide a storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.

The storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method of embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.

Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, taking a cooling condition as an example, the air conditioner comprising: the indoor side circulation loop is sequentially provided with a water pump, an intermediate heat exchanger, a first electronic expansion valve and an indoor unit along the medium flow direction; one end of the energy storage device is connected with the medium inflow end of the first electronic expansion valve, and the other end of the energy storage device is connected with the medium inflow end of the water pump; the method comprises the following steps:

determining the actual temperature of the energy storage device under the condition that the working period of the indoor unit is a first period;

under the condition that the actual temperature of the energy storage device meets the energy release condition, the outdoor unit is controlled to be closed, and the target temperature of the air conditioner and the indoor environment temperature are determined;

and controlling the opening degree of the first electronic expansion valve and the running frequency of the water pump according to the actual temperature of the energy storage device, the target temperature of the air conditioner and the indoor environment temperature.

2. The method of claim 1, wherein the first period is a power consumption peak period or a user-defined period.

3. The method of claim 1, wherein the step of determining the position of the substrate comprises,

under the refrigeration working condition, if T0 is less than or equal to Tup, the actual temperature of the energy storage device meets the energy release condition;

under the heating working condition, if T0 is more than or equal to Tlow, the actual temperature of the energy storage device meets the energy release condition;

wherein T0 is the actual temperature of the energy storage device, tup is the upper limit use temperature of the refrigeration working condition energy storage device, and Tlow is the lower limit use temperature of the heating working condition energy storage device.

4. The method of claim 1, wherein controlling the first electronic expansion valve opening and the water pump operating frequency according to the actual temperature of the energy storage device, the air conditioning target temperature, and the indoor environment temperature comprises:

controlling the opening degree of the first electronic expansion valve to be k1max and the running frequency of the water pump to be f1max under the condition that the I delta T I is not less than 5;

controlling the opening degree of the first electronic expansion valve and the operation frequency of the water pump according to the temperature difference between the actual temperature of the energy storage device and the limited use temperature of the energy storage device under the condition that |delta T| < 5;

wherein DeltaT _{Is that} The temperature difference between the indoor environment temperature and the target temperature of the air conditioner is k1max, the maximum opening degree of the first electronic expansion valve is k1max, and f1max is the highest running frequency of the water pump.

5. The method of claim 4, wherein controlling the first electronic expansion valve opening and the water pump operating frequency based on a temperature difference between an actual temperature of the energy storage device and a limited use temperature of the energy storage device comprises:

when the absolute value delta T is less than or equal to 2 and is less than 5, and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max multiplied by a;

controlling the opening degree of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max under the conditions that the absolute value delta T is less than or equal to 2 and the dt is less than or equal to 2;

when the absolute value of delta T is less than or equal to 1 and is less than 2, and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1min;

controlling the opening degree of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1max multiplied by a under the condition that the absolute value delta T is less than or equal to 1 and the absolute value dt is less than or equal to 2;

when the absolute value of delta T is less than 1 and the dt is more than 2, controlling the opening of the electronic expansion valve 1 to be k1max multiplied by b and the running frequency of the water pump to be f1min;

when the absolute delta T is smaller than 1 and the dt is smaller than or equal to 2, controlling the opening of the electronic expansion valve 1 to be k1max and the running frequency of the water pump to be f1min;

wherein f1min is the lowest running frequency of the water pump, b is more than 0 and less than 1, and a is more than 0 and less than 1.

6. The method of claim 5, wherein Δt = Tr-Tset, tr being an indoor ambient temperature, tset being an air conditioning target temperature.

7. The method according to any one of claims 1 to 6, wherein the indoor-side circulation circuit further comprises: the second electronic expansion valve is arranged between the first electronic expansion valve and the intermediate heat exchanger; the third electronic expansion valve is arranged between the water pump and the intermediate heat exchanger; the fourth electronic expansion valve is arranged between the indoor unit and the water pump; one end of the fifth electronic expansion valve is connected with the energy storage device, and the other end of the fifth electronic expansion valve is connected between the first electronic expansion valve and the second electronic expansion valve; the sixth electronic expansion valve is arranged between the energy storage device and the medium outflow end of the fourth electronic expansion valve; one end of the seventh electronic expansion valve is connected between the water pump and the third electronic expansion valve, and the other end of the seventh electronic expansion valve is connected between the energy storage device and the sixth electronic expansion valve; the method further comprises the steps of:

and under the conditions that the working period of the indoor unit is a first period, the outdoor unit is closed and the working condition of the energy storage device is energy release, the second electronic expansion valve, the third electronic expansion valve and the sixth electronic expansion valve are controlled to be closed, and the opening degrees of the fourth electronic expansion valve, the fifth electronic expansion valve and the seventh electronic expansion valve are maximum.

8. An apparatus for controlling an air conditioner comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling an air conditioner according to any one of claims 1 to 7 when the program instructions are run.

9. An air conditioner, taking refrigeration condition as an example, comprising:

the indoor side circulation loop is sequentially provided with a water pump, an intermediate heat exchanger, a first electronic expansion valve and an indoor unit along the medium flow direction;

one end of the energy storage device is connected with the medium inflow end of the first electronic expansion valve, and the other end of the energy storage device is connected with the medium inflow end of the water pump; and, a step of, in the first embodiment,

the apparatus for controlling an air conditioner as claimed in claim 8.

10. The air conditioner of claim 9, wherein the indoor side circulation loop further comprises:

the second electronic expansion valve is arranged between the first electronic expansion valve and the intermediate heat exchanger;

the third electronic expansion valve is arranged between the water pump and the intermediate heat exchanger;

the fourth electronic expansion valve is arranged between the indoor unit and the water pump;

one end of the fifth electronic expansion valve is connected with the energy storage device, and the other end of the fifth electronic expansion valve is connected between the first electronic expansion valve and the second electronic expansion valve;

the sixth electronic expansion valve is arranged between the energy storage device and the medium outflow end of the fourth electronic expansion valve;

and one end of the seventh electronic expansion valve is connected between the water pump and the third electronic expansion valve, and the other end of the seventh electronic expansion valve is connected between the energy storage device and the sixth electronic expansion valve.

11. A storage medium storing program instructions which, when executed, perform the method for controlling an air conditioner according to any one of claims 1 to 7.