CN117308296A

CN117308296A - Method and device for air conditioning heat, air conditioner and computer readable storage medium

Info

Publication number: CN117308296A
Application number: CN202311203373.4A
Authority: CN
Inventors: 褚运通; 张铭; 崔国栋
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2023-12-29

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for air conditioning and heating, which comprises the following steps: judging whether the refrigerant circulation quantity of the air conditioning system is sufficient under the condition of partial indoor machine heating operation; under the condition that the refrigerant circulation quantity of the air conditioning system is insufficient, calculating a first temperature difference value between the target liquid pipe temperature of the indoor unit in heating operation and the second liquid pipe temperature of the indoor unit in standby; and when the first temperature difference value is larger than the set threshold value, increasing the opening degree of the electronic expansion valve of the indoor unit in standby. And judging whether the refrigerant stored in the standby indoor unit is sufficient or not through the temperature difference value between the target liquid pipe temperature of the indoor unit in operation and the liquid pipe temperature of the standby indoor unit, so that the opening degree of the electronic expansion valve is regulated based on the refrigerant quantity storage condition of the standby indoor unit to supplement the refrigerant circulation quantity of the air conditioning system, and the supplementing efficiency of the refrigerant circulation quantity is improved. The application also discloses a device for air conditioning and heating, an air conditioner and a computer readable storage medium.

Description

Method and device for air conditioning heat, air conditioner and computer readable storage medium

Technical Field

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

Background

At present, a multi-split air conditioner is characterized in that an outer machine is matched with a plurality of inner machines, and the outer machine is provided with a plurality of electronic expansion valves and each inner machine is in one-to-one correspondence to perform refrigeration, heating and throttling. In the refrigeration mode, the electronic expansion valve corresponding to the startup internal machine is opened for throttling by a certain opening degree, the electronic expansion valve corresponding to the shutdown internal machine is closed, the non-startup internal machine evaporator is connected with the air suction port of the compressor and is positioned at the low-pressure air suction side, the refrigerant is not stored, the redundant refrigerant of the system is stored in the condenser of the external machine, and the condenser of the external machine is relatively large, so that the redundant refrigerant is all in the condenser. Under the heating mode, the electronic expansion valve corresponding to the power-on internal machine is opened for throttling by a certain opening degree, if the electronic expansion valve corresponding to the power-off internal machine is always closed, the throttle original electronic expansion valve is arranged between the condenser and the evaporator, the thick pipe of the evaporator of the power-off internal machine is connected with the four-way valve pipe and is positioned in a heating high-pressure area, a large amount of refrigerant can be stored in the evaporator of the power-off internal machine, and all the refrigerant can be finally stored in the non-power-on internal machine for a long time, so that the power-on internal machine cannot normally operate.

The related art discloses an air conditioner and a control method thereof, wherein when the air conditioner is in a heating mode, the refrigerant dynamic adjustment control method combines the quantity of the connected indoor units, and determines whether the system refrigerant is proper or not by calculating the system supercooling degree of the startup indoor unit and comparing the supercooling degree calculated in real time with the set supercooling degree, thereby dynamically adjusting the opening degree of an electronic expansion valve of the shutdown indoor unit to dynamically store the refrigerant, dynamically changing the refrigerant stored by the non-startup indoor unit, improving the heating effect of the startup indoor unit and improving the heating efficiency of an air adjustment mechanism.

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:

the expansion valve corresponding to the indoor unit in the shutdown state is increased by adopting the related technology, and the refrigerant circulation quantity of the air conditioning system can be supplemented to a certain extent, but not all evaporators of the indoor units in standby state store enough refrigerant. Even if the opening degree of the expansion valve of the indoor unit is increased, a sufficient refrigerant circulation amount cannot be supplemented for the air conditioning system from the indoor unit in standby, so that the supplementing efficiency of the refrigerant circulation amount in the heating operation process of the multi-split air conditioner is low.

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 air conditioning heat, an air conditioner and a computer readable storage medium, so as to improve the supplement efficiency of refrigerant circulation quantity in the air conditioning heat operation process of a multi-split air conditioner.

In some embodiments, the air conditioner includes a plurality of indoor units; the method comprises the following steps: judging whether the refrigerant circulation quantity of the air conditioning system is sufficient under the condition of partial indoor machine heating operation; under the condition that the refrigerant circulation quantity of the air conditioning system is insufficient, calculating a first temperature difference value between the target liquid pipe temperature of the indoor unit in heating operation and the second liquid pipe temperature of the indoor unit in standby; and when the first temperature difference value is larger than the set threshold value, increasing the opening degree of the electronic expansion valve of the indoor unit in standby.

Optionally, the increasing the opening degree of the electronic expansion valve of the indoor unit in standby includes: determining a standby target indoor unit; determining a first opening corresponding to the first temperature difference according to the first relation; the opening degree of the electronic expansion valve of the control target indoor unit is increased by the first opening degree.

Optionally, the determining the standby target indoor unit includes: and determining the indoor unit with the first temperature difference value being larger than the set threshold value as the target indoor unit.

Optionally, the controlling the opening degree of the electronic expansion valve of the target indoor unit to increase by a first opening degree includes: and according to the first temperature difference, sequentially controlling the opening of the electronic expansion valve of each target indoor unit from large to small to increase the first opening until the refrigerant circulation amount of the air conditioning system is sufficient.

Optionally, after the opening degree of the electronic expansion valve of the control target indoor unit is increased by a first opening degree, the method further includes:

calculating a second temperature difference value between the target liquid pipe temperature and the third liquid pipe temperature of the target indoor unit at intervals; determining a second opening corresponding to the second temperature difference according to the first relation when the second temperature difference is greater than the set threshold; the opening degree of the electronic expansion valve of the control target indoor unit is increased by the second opening degree.

Optionally, the determining whether the refrigerant circulation amount of the air conditioning system is sufficient includes: detecting the temperature of a first liquid pipe of an indoor unit in heating operation; under the condition that the temperature of the first liquid pipe is smaller than the temperature of the target liquid pipe, determining that the refrigerant circulation quantity of the air conditioning system is insufficient; and determining that the refrigerant circulation amount of the air conditioning system is sufficient under the condition that the temperature of the first liquid pipe is greater than or equal to the target liquid pipe temperature.

Optionally, the method for air conditioning heat further comprises: when the opening degree of the electronic expansion valve of the indoor unit in standby is increased to the set opening degree, the increase of the opening degree of the electronic expansion valve of the indoor unit in standby is stopped.

In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, said processor being configured to perform the above-described method for air conditioning heat when executing said program instructions.

In some embodiments, the air conditioner includes:

the air conditioner body comprises a plurality of indoor units; the method comprises the steps of,

the above-described device for air conditioning heat is mounted to the air conditioning body.

In some embodiments, the computer readable storage medium stores program instructions that, when executed, perform the method for air conditioning described above.

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

under the condition of partial indoor heating operation, judging whether the refrigerant circulation quantity of the air conditioning system is sufficient. And under the condition that the refrigerant circulation quantity of the air conditioning system is insufficient, calculating a first temperature difference value between the target liquid pipe temperature of the indoor unit in heating operation and the second liquid pipe temperature of the indoor unit in standby, and increasing the opening of the electronic expansion valve of the indoor unit in standby under the condition that the first temperature difference value is larger than a set threshold value. And judging whether the refrigerant stored in the standby indoor unit is sufficient or not according to the temperature difference between the target liquid pipe temperature of the indoor unit in operation and the liquid pipe temperature of the standby indoor unit, so that the refrigerant circulation volume of an air conditioning system is supplemented by increasing the opening degree of an electronic expansion valve of the standby indoor unit with sufficient refrigerant storage, and the supplementing efficiency of the refrigerant circulation volume in the heating operation process of the multi-split air conditioner 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 diagram of a method for air conditioning heat provided by an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another method for air conditioning heat provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of another method for air conditioning heat provided by an embodiment of the present disclosure;

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

FIG. 5 is a schematic diagram of an apparatus for air conditioning heat provided by an embodiment of the present disclosure;

fig. 6 is a schematic view of an air conditioner provided in 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.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

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.

In the embodiment of the disclosure, the intelligent home appliance refers to a home appliance formed after a microprocessor, a sensor technology and a network communication technology are introduced into the home appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent home appliance often depends on the application and processing of modern technologies such as the internet of things, the internet and an electronic chip, for example, the intelligent home appliance can realize remote control and management of a user on the intelligent home appliance by connecting the electronic appliance.

In the disclosed embodiment, the terminal device refers to an electronic device with a wireless connection function, and the terminal device can be in communication connection with the intelligent household electrical appliance through connecting with the internet, or can be in communication connection with the intelligent household electrical appliance through Bluetooth, wifi and other modes. In some embodiments, the terminal device is, for example, a mobile device, a computer, or an in-vehicle device built into a hover vehicle, etc., or any combination thereof. The mobile device may include, for example, a cell phone, smart home device, wearable device, smart mobile device, virtual reality device, etc., or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, etc.

At present, a multi-split air conditioner is characterized in that an outer machine is matched with a plurality of inner machines, and the outer machine is provided with a plurality of electronic expansion valves and each inner machine is in one-to-one correspondence to perform refrigeration, heating and throttling. In the refrigeration mode, the electronic expansion valve corresponding to the startup internal machine is opened for throttling by a certain opening degree, the electronic expansion valve corresponding to the shutdown internal machine is closed, the non-startup internal machine evaporator is connected with the air suction port of the compressor and is positioned at the low-pressure air suction side, the refrigerant is not stored, the redundant refrigerant of the system is stored in the condenser of the external machine, and the condenser of the external machine is relatively large, so that the redundant refrigerant is all in the condenser. Under the heating mode, the electronic expansion valve corresponding to the power-on internal machine is opened for throttling by a certain opening degree, if the electronic expansion valve corresponding to the power-off internal machine is always closed, the throttle original electronic expansion valve is arranged between the condenser and the evaporator, the thick pipe of the evaporator of the power-off internal machine is connected with the four-way valve pipe and is positioned in a heating high-pressure area, a large amount of refrigerant can be stored in the evaporator of the power-off internal machine, and all the refrigerant can be finally stored in the non-power-on internal machine for a long time, so that the power-on internal machine cannot normally operate. The related art discloses an air conditioner and a control method thereof, wherein when the air conditioner is in a heating mode, the refrigerant dynamic adjustment control method combines the quantity of the connected indoor units, and determines whether the system refrigerant is proper or not by calculating the system supercooling degree of the startup indoor unit and comparing the supercooling degree calculated in real time with the set supercooling degree, thereby dynamically adjusting the opening degree of an electronic expansion valve of the shutdown indoor unit to dynamically store the refrigerant, dynamically changing the refrigerant stored by the non-startup indoor unit, improving the heating effect of the startup indoor unit and improving the heating efficiency of an air adjustment mechanism. The expansion valve corresponding to the indoor unit in the shutdown state is increased by adopting the related technology, and the refrigerant circulation quantity of the air conditioning system can be supplemented to a certain extent, but not all evaporators of the indoor units in standby state store enough refrigerant. Even if the opening degree of the expansion valve of the indoor unit is increased, a sufficient refrigerant circulation amount cannot be supplemented for the air conditioning system from the indoor unit in standby, so that the supplementing efficiency of the refrigerant circulation amount in the heating operation process of the multi-split air conditioner is low.

The embodiment of the disclosure discloses an air conditioner, which comprises a processor, an outdoor unit and a plurality of indoor units matched with the outdoor unit. The outdoor unit is provided with a plurality of electronic expansion valves which are in one-to-one correspondence with the indoor units for refrigerating throttling or heating throttling. The processor is electrically connected with the electric components and is used for controlling the electric components to operate.

Based on the above-mentioned air conditioning structure, as shown in fig. 1, an embodiment of the disclosure provides a method for air conditioning heat, including:

and S01, under the condition of partial indoor heating operation, the processor judges whether the refrigerant circulation quantity of the air conditioning system is sufficient.

S02, when the refrigerant circulation quantity of the air conditioning system is insufficient, the processor calculates a first temperature difference value between the target liquid pipe temperature of the indoor unit in heating operation and the second liquid pipe temperature of the indoor unit in standby.

S03, when the first temperature difference is greater than the set threshold, the processor increases the opening of the electronic expansion valve of the indoor unit in standby.

The processor calculates a first temperature difference between a target liquid pipe temperature of the indoor unit in heating operation and a second liquid pipe temperature of the indoor unit in standby. Specifically, the target liquid pipe temperature herein refers to an average value of the target liquid pipe temperatures of the indoor units in each heating operation determined to be insufficient in the refrigerant circulation amount. The processor acquires the target liquid pipe temperatures of the indoor units which are determined to be the heating operation with insufficient refrigerant circulation quantity and the second liquid pipe temperatures of the indoor units which are in standby respectively, calculates the average value of the target liquid pipe temperatures, and finally calculates the first temperature difference value between the average value and the second liquid pipe temperatures.

By adopting the method for air conditioning heating provided by the embodiment of the disclosure, under the condition of partial indoor machine heating operation, the throttling original electronic expansion valve is connected between the condenser and the evaporator, the evaporator thick pipe of the indoor machine in standby is connected with the four-way valve pipe and is positioned in a heating high-pressure area, and a large amount of refrigerant can be stored in the evaporator of the indoor machine in standby, so that the refrigerant circulation amount of the multi-connection air conditioning system is possibly insufficient under the heating operation, and a processor is required to judge whether the refrigerant circulation amount of the air conditioning system is sufficient or not, so as to determine whether to execute refrigerant supplementing operation. In order to ensure the heating operation effect of the multi-split air conditioner under the condition that the refrigerant circulation amount of the air conditioning system is insufficient, the refrigerant circulation amount is sufficient by supplementing the refrigerant through the indoor units, so that the processor calculates a first temperature difference value between the target liquid pipe temperature of the indoor units in the heating operation and the second liquid pipe temperature of the indoor units in standby, and determines the condition of refrigerant storage in the indoor units in standby. When the first temperature difference is larger than the set threshold, the processor increases the opening degree of the electronic expansion valve of the indoor unit to make the stored refrigerant enter the refrigerant circulation of the multi-split air conditioning system from the indoor unit. And judging whether the refrigerant stored in the standby indoor unit is sufficient or not according to the temperature difference between the target liquid pipe temperature of the indoor unit in operation and the liquid pipe temperature of the standby indoor unit, so that the refrigerant circulation volume of an air conditioning system is supplemented by increasing the opening degree of an electronic expansion valve of the standby indoor unit with sufficient refrigerant storage, and the supplementing efficiency of the refrigerant circulation volume in the heating operation process of the multi-split air conditioner is improved.

Based on the above air conditioning structure, as shown in fig. 2, an embodiment of the disclosure provides a method for air conditioning heat, including:

S21, when the first temperature difference value is larger than the set threshold value, the processor determines a standby target indoor unit.

S22, the processor determines a first opening corresponding to the first temperature difference according to the first relation.

S23, the processor controls the opening degree of the electronic expansion valve of the target indoor unit to increase by the first opening degree.

The first relationship may be determined in any manner, for example, the first relationship may be obtained according to a table lookup, or may be measured according to an experiment, or may be determined according to a user setting. The first relationship may specifically be stored in a local or cloud server.

By adopting the method for air conditioning heat provided by the embodiment of the disclosure, when the first temperature difference value is larger than the set threshold value, the refrigerant quantity stored in the indoor unit in standby state is sufficient, and the refrigerant circulation quantity of the multi-split air conditioning system is sufficiently supplemented. Therefore, the processor determines the target indoor unit to be standby, and determines the first opening corresponding to the first temperature difference according to the first relation, so that the first opening is matched with the refrigerant quantity stored in the indoor unit to be standby, and the accuracy of the first opening is improved. The processor controls the opening degree of the electronic expansion valve of the target indoor unit to increase the first opening degree, so that the refrigerant of the indoor unit supplements the circulation quantity of the refrigerant at a proper flow rate.

Optionally, the processor determines a standby target indoor unit, including: the processor determines that the indoor unit on standby with the first temperature difference value greater than the set threshold value is the target indoor unit.

Thus, when the amount of refrigerant stored in the indoor unit in standby is insufficient, effective replenishment of the refrigerant circulation amount cannot be achieved, resulting in an increase in energy consumption. Therefore, the processor determines the indoor unit with the first temperature difference value larger than the set threshold value as the target indoor unit, and avoids increasing the electronic expansion valve corresponding to the indoor unit with insufficient refrigerant storage, thereby reducing energy consumption.

Optionally, the processor controls the opening degree of the electronic expansion valve of the target indoor unit to increase by a first opening degree, including: the processor sequentially controls the opening of the electronic expansion valve of each target indoor unit to increase the first opening according to the first temperature difference value from large to small until the refrigerant circulation amount of the air conditioning system is sufficient.

In this way, the processor sequentially controls the opening of the electronic expansion valve of each target indoor unit to increase the first opening according to the first temperature difference value from large to small until the refrigerant circulation amount of the air conditioning system is sufficient. The electronic expansion valve corresponding to the indoor unit with more sufficient stored refrigerant quantity is preferentially increased, so that the refrigerant circulation quantity of the multi-split air conditioning system can be more rapidly supplemented, and the supplementing efficiency of the refrigerant circulation quantity is improved.

Optionally, after the processor controls the opening degree of the electronic expansion valve of the target indoor unit to increase by the first opening degree, the method further includes: the processor calculates a second temperature difference value between the target liquid pipe temperature and a third liquid pipe temperature of the target indoor unit at intervals; when the second temperature difference value is larger than the set threshold value, the processor determines a second opening corresponding to the second temperature difference value according to the first relation; the processor controls the opening degree of the electronic expansion valve of the target indoor unit to increase by a second opening degree.

The set time period may be determined according to a previously increased opening of the electronic expansion valve to be adjusted, for example, the processor determines a set time period corresponding to the previously increased opening of the electronic expansion valve to be adjusted according to the second relationship. Therefore, the set time length of the interval can be matched with the opening degree increased by the electronic expansion valve every time, and the accuracy of refrigerant circulation quantity supplement is improved. The second relationship may be determined in any manner, for example, the second relationship may be obtained from a look-up table, may be measured experimentally, or may be determined according to a user setting. The second relationship may be stored in a local or cloud server in particular.

In this way, when the refrigerant circulation amount is replenished by the refrigerant amount of the target indoor unit, there may be a case that no refrigerant exists in the target indoor unit and the opening of the corresponding electronic expansion valve is still increased, so in order to avoid the problem that the opening of the electronic expansion valve corresponding to the target indoor unit without refrigerant is continuously increased in the process of replenishing the refrigerant circulation amount, after the opening of the electronic expansion valve of the processor control target indoor unit is increased by the first opening, the processor re-calculates the second temperature difference value between the target liquid pipe temperature and the third liquid pipe temperature of the target indoor unit by setting the interval time. And only if the second temperature difference value is larger than the set threshold value, namely, the target indoor unit is sufficient in refrigerant quantity, determining the second opening corresponding to the second temperature difference value according to the first relation, controlling the opening of the electronic expansion valve of the target indoor unit to increase the second opening, and improving the supplementing efficiency of the refrigerant circulation quantity. In addition, the second opening is matched with the refrigerant storage amount of the target indoor unit after the supplement, and the accuracy of the second opening in the process of supplementing the refrigerant circulation amount is improved.

Based on the above air conditioning structure, as shown in fig. 3, an embodiment of the disclosure provides a method for air conditioning heat, including:

s31, under the condition of partial indoor machine heating operation, the processor detects the temperature of a first liquid pipe of the indoor machine in heating operation.

S32, when the temperature of the first liquid pipe is smaller than the target liquid pipe temperature, the processor determines that the refrigerant circulation quantity of the air conditioning system is insufficient.

S33, when the temperature of the first liquid pipe is larger than or equal to the target liquid pipe temperature, the processor determines that the refrigerant circulation quantity of the air conditioning system is sufficient.

Under the condition of partial indoor machine heating operation, the processor detects the temperature of a first liquid pipe of each indoor machine in heating operation. When the number of the first liquid pipes of each indoor unit for heating operation is smaller than the target liquid pipe temperature and reaches the set proportion, the processor can determine that the refrigerant circulation quantity of the air conditioning system is insufficient. When the number of the first liquid pipes of each indoor unit for heating operation is larger than or equal to the target liquid pipe temperature and reaches the set proportion, the processor can determine that the refrigerant circulation quantity of the air conditioning system is sufficient. The set proportion can be measured according to experiments, can be obtained according to a table lookup, and can be determined according to user setting. The set proportion can be 1/C, wherein C is any numerical value, and can be the total number of the indoor units in the current heating operation, three fourths of the total number, or one half of the total number.

By adopting the method for air conditioning and heating provided by the embodiment of the disclosure, under the condition of partial indoor machine heating operation, the processor detects the temperature of the first liquid pipe of the indoor machine in heating operation. Under the condition that the temperature of the first liquid pipe is smaller than the temperature of the target liquid pipe, the temperature of the liquid pipe of the indoor unit in the running state does not reach the temperature of the target liquid pipe at the moment, which indicates that the heating capacity of the indoor unit running at the moment and the refrigerant circulation quantity of the multi-split air conditioning system under the starting load do not meet the requirements, and therefore the refrigerant circulation quantity of the air conditioning system is determined to be insufficient. And under the condition that the temperature of the first liquid pipe is greater than or equal to the target liquid pipe temperature, determining that the refrigerant circulation quantity of the air conditioning system is sufficient.

Based on the above-mentioned air conditioning structure, as shown in fig. 4, an embodiment of the disclosure provides a method for air conditioning heat, including:

S41, when the opening degree of the electronic expansion valve of the indoor unit in standby is increased to the set opening degree, the processor stops increasing the opening degree of the electronic expansion valve of the indoor unit in standby.

By adopting the method for air conditioning and heating provided by the embodiment of the disclosure, when the opening of the electronic expansion valve is larger, the flow rate of the refrigerant flowing through the electronic expansion valve is increased, and the flow rate of the refrigerant is increased, so that the noise generated by the throttling effect of the electronic expansion valve is increased. Therefore, when the opening degree of the electronic expansion valve of the indoor unit in standby is increased to the set opening degree, in order to prevent noise from being generated by the indoor unit in standby, the processor stops increasing the opening degree of the electronic expansion valve of the indoor unit in standby, and the adjustment of the indoor unit in standby is prevented from being influenced by the noise.

In practical application, the temperature of the first liquid pipe is T1, the temperature of the second liquid pipe is T2, and the temperature of the target liquid pipe is T0. When the temperature T1 of the first liquid pipe of the indoor unit is more than or equal to T0, the heating capacity of the indoor unit operated at the moment and the circulation quantity of the system refrigerant under the starting load are considered to be satisfied. When the temperature T1 of the first liquid pipe of the running indoor unit is less than T0, the running indoor unit heat-producing capacity and the system refrigerant circulation quantity under the starting load are considered to be unsatisfied. At this time, it is necessary to determine a first temperature difference between the target liquid pipe temperature T0 of the indoor unit in operation and the second liquid pipe temperature T2 of the indoor unit in standby. If the first temperature difference T2-T0 between the target liquid pipe temperature T0 of the indoor unit and the second liquid pipe temperature T2 of the indoor unit in standby is more than or equal to 10, the fact that a large amount of refrigerant exists in the indoor unit in standby at the moment is indicated, and the opening degree of an electronic expansion valve of the indoor unit in standby needs to be quickly adjusted to adjust the circulation amount of the refrigerant in the system. The opening of the electronic expansion valve of the indoor unit in standby is adjusted according to the 3 valve openings which are increased each time, the second liquid pipe temperature T2 of the indoor unit in standby is compared with the target liquid pipe temperature T0 of the indoor unit in operation after 2min, the valve opening is adjusted according to the judging condition, and in order to prevent noise of the indoor unit in standby, the maximum valve opening is smaller than or equal to the set opening 64. If the first temperature difference T2-T0 between the target liquid pipe temperature T0 of the indoor unit and the second liquid pipe temperature T2 of the indoor unit in standby is more than or equal to 5, the fact that the refrigerant exists in the indoor unit in standby at the moment is indicated, and the opening degree of the electronic expansion valve of the indoor unit in standby needs to be quickly adjusted to adjust the circulation quantity of the refrigerant in the system. The opening of the electronic expansion valve of the indoor unit in standby is adjusted according to 2 valve openings which are increased each time, the second liquid pipe temperature T2 of the indoor unit in standby is compared with the target liquid pipe temperature T0 of the indoor unit in operation after 2 minutes, the valve opening is adjusted according to judging conditions, and in order to prevent noise of the indoor unit in standby, the maximum valve opening is smaller than or equal to the set opening 64. If the first temperature difference T2-T0 between the target liquid pipe temperature T0 of the indoor unit and the second liquid pipe temperature T2 of the indoor unit in standby is more than or equal to 1, the condition that a small amount of refrigerant exists in the indoor unit in standby at the moment is indicated, and the opening degree of an electronic expansion valve of the indoor unit in standby needs to be adjusted to adjust the circulation amount of the refrigerant in the system. The opening of the electronic expansion valve of the indoor unit in standby is adjusted according to the increase of 1 valve opening each time, the second liquid pipe temperature T2 of the indoor unit in standby is compared with the target liquid pipe temperature T0 of the indoor unit in operation after 2min, the valve opening is adjusted according to the judging condition, and in order to prevent noise of the indoor unit in standby, the maximum valve opening is smaller than or equal to the set opening 64.

The target fluid pipe temperature T0 is a sum of an average value T-ring of the indoor environment temperature of the indoor unit running and a correction parameter, for example, t1=t-ring+25. The second liquid pipe temperature T2 is a temperature value of the liquid pipe sensor of the indoor unit in standby. The first liquid pipe temperature T1 is the average value of the liquid pipe sensor temperature values of the running indoor unit.

As shown in connection with fig. 5, an embodiment of the present disclosure provides an apparatus 800 for air conditioning heat, including a processor (processor) 801 and a memory (memory) 802. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 803 and a bus 804. The processor 801, the communication interface 803, and the memory 802 may communicate with each other via the bus 804. The communication interface 803 may be used for information transfer. The processor 801 may call logic instructions in the memory 802 to perform the method for air conditioning of the above-described embodiments.

Further, the logic instructions in the memory 802 described above may be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as a stand-alone product.

The memory 802 is a computer-readable storage medium that can be used to store a software program, a computer-executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 801 executes functional applications and data processing by running program instructions/modules stored in the memory 802, i.e., implements the method for air conditioning in the above-described embodiments.

Memory 802 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data created according to the use of the terminal device, etc. In addition, memory 802 may include high-speed random access memory, and may also include non-volatile memory.

As shown in conjunction with fig. 6, an embodiment of the present disclosure provides an air conditioner 900, including: an air conditioner body, and the above-described device 700 (800) for air conditioning heat. The apparatus 700 (800) for air conditioning heat is mounted to an air conditioning body. The mounting relationship described herein is not limited to being placed inside the air conditioner, but also includes mounting connections with other components of the air conditioner, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art will appreciate that the apparatus 700 (800) for air conditioning heat may be adapted to a viable air conditioning body, thereby enabling other viable embodiments.

The disclosed embodiments provide a computer readable storage medium storing computer executable instructions configured to perform the above-described method for air conditioning heat.

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 according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: 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 the like, which can store program codes.

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 air conditioning heat, wherein the air conditioner comprises a plurality of indoor units; the method comprises the following steps:

judging whether the refrigerant circulation quantity of the air conditioning system is sufficient under the condition of partial indoor machine heating operation;

under the condition that the refrigerant circulation quantity of the air conditioning system is insufficient, calculating a first temperature difference value between the target liquid pipe temperature of the indoor unit in heating operation and the second liquid pipe temperature of the indoor unit in standby;

and when the first temperature difference value is larger than the set threshold value, increasing the opening degree of the electronic expansion valve of the indoor unit in standby.

2. The method of claim 1, wherein increasing the opening of the electronic expansion valve of the indoor unit in standby comprises:

determining a standby target indoor unit;

determining a first opening corresponding to the first temperature difference according to the first relation;

the opening degree of the electronic expansion valve of the control target indoor unit is increased by the first opening degree.

3. The method of claim 2, wherein the determining the standby target indoor unit comprises:

and determining the indoor unit with the first temperature difference value being larger than the set threshold value as the target indoor unit.

4. The method according to claim 2, wherein the increasing of the opening degree of the electronic expansion valve of the control-target indoor unit by the first opening degree includes:

and according to the first temperature difference, sequentially controlling the opening of the electronic expansion valve of each target indoor unit from large to small to increase the first opening until the refrigerant circulation amount of the air conditioning system is sufficient.

5. The method according to claim 2, wherein after increasing the opening degree of the electronic expansion valve of the control-target indoor unit by the first opening degree, further comprising:

calculating a second temperature difference value between the target liquid pipe temperature and the third liquid pipe temperature of the target indoor unit at intervals;

determining a second opening corresponding to the second temperature difference according to the first relation when the second temperature difference is greater than the set threshold;

the opening degree of the electronic expansion valve of the control target indoor unit is increased by the second opening degree.

6. The method according to any one of claims 1 to 5, wherein the determining whether the refrigerant circulation amount of the air conditioning system is sufficient includes:

detecting the temperature of a first liquid pipe of an indoor unit in heating operation;

under the condition that the temperature of the first liquid pipe is smaller than the temperature of the target liquid pipe, determining that the refrigerant circulation quantity of the air conditioning system is insufficient;

and determining that the refrigerant circulation amount of the air conditioning system is sufficient under the condition that the temperature of the first liquid pipe is greater than or equal to the target liquid pipe temperature.

7. The method according to any one of claims 1 to 5, further comprising:

when the opening degree of the electronic expansion valve of the indoor unit in standby is increased to the set opening degree, the increase of the opening degree of the electronic expansion valve of the indoor unit in standby is stopped.

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

9. An air conditioner, comprising:

the apparatus for air conditioning and heating of claim 8, mounted to the air conditioning body.

10. A computer readable storage medium storing program instructions which, when executed, are adapted to cause a computer to carry out the method for air conditioning according to any one of claims 1 to 7.