CN116336619A - Method and device for adjusting air conditioner refrigerant, air conditioner and storage medium - Google Patents

Method and device for adjusting air conditioner refrigerant, air conditioner and storage medium Download PDF

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Publication number
CN116336619A
CN116336619A CN202111588999.2A CN202111588999A CN116336619A CN 116336619 A CN116336619 A CN 116336619A CN 202111588999 A CN202111588999 A CN 202111588999A CN 116336619 A CN116336619 A CN 116336619A
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China
Prior art keywords
refrigerant
driving mechanism
piston
circulation system
air conditioner
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Pending
Application number
CN202111588999.2A
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Chinese (zh)
Inventor
王诗洋
程惠鹏
李鑫
宁贻江
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202111588999.2A priority Critical patent/CN116336619A/en
Priority to PCT/CN2022/105419 priority patent/WO2023115919A1/en
Publication of CN116336619A publication Critical patent/CN116336619A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for adjusting air conditioner refrigerants, wherein an air conditioner comprises the following steps: the liquid storage tank is connected with a refrigerant circulation system of the air conditioner; the piston is arranged in the liquid storage tank; the driving mechanism is connected with the piston, and the position of the piston is changed by controlled movement; under the condition that the position of the piston is controlled to be changed, the liquid storage tank can collect and store the refrigerant in the refrigerant circulation system or release the stored refrigerant to the refrigerant circulation system so as to adjust the refrigerant quantity in the refrigerant circulation system; the method comprises the following steps: acquiring an operation mode of an air conditioner; determining an operating frequency of the compressor according to the operating mode; and controlling the driving mechanism to move according to the operation mode and the operation frequency. The distance that the driving mechanism drives the piston to move is determined, so that the variation of the refrigerant can be determined, and the accuracy of the refrigerant adjustment in the refrigerant circulation system is improved. The application also discloses a device for adjusting the air conditioner refrigerant, an air conditioner and a storage medium.

Description

Method and device for adjusting air conditioner refrigerant, air conditioner and storage medium
Technical Field
The application relates to the technical field of intelligent household appliances, and for example relates to a method and a device for adjusting air conditioning refrigerants, an air conditioner and a storage medium.
Background
At present, the air conditioner realizes the functions of refrigeration and heating through the refrigerant in the refrigerant circulation system. Under different operation modes and different loads, the amount of the refrigerant required by the refrigerant circulation system is different and needs to be adjusted.
The method for adjusting the air conditioner coolant in the prior art comprises the following steps: collecting the current pressure value of any position in a connecting pipe between a compressor outlet and a throttle valve, wherein the throttle valve is directly connected with the compressor outlet through the connecting pipe; comparing the current pressure value with a preset solenoid valve opening value: under the condition that the current pressure value is larger than the preset solenoid valve opening value, the solenoid valve is opened, so that a part of refrigerant automatically flows into the liquid storage tank, and the circulation quantity of the refrigerant of the air conditioner is reduced.
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 technology is to reduce the refrigerant quantity in a refrigerant circulation system by opening an electromagnetic valve. However, the refrigerant automatically flows into the liquid storage tank in the opening process of the electromagnetic valve, the refrigerant quantity in the liquid storage tank is difficult to determine, and the accuracy of refrigerant adjustment is low.
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 adjusting air conditioner refrigerants, an air conditioner and a storage medium, so as to improve the accuracy of refrigerant adjustment in a refrigerant circulation system.
In some embodiments, an air conditioner includes: the liquid storage tank is connected with a refrigerant circulation system of the air conditioner; the piston is arranged in the liquid storage tank; the driving mechanism is connected with the piston, and the position of the piston is changed by controlled movement; under the condition that the position of the piston is controlled to be changed, the liquid storage tank can collect and store the refrigerant in the refrigerant circulation system or release the stored refrigerant to the refrigerant circulation system so as to adjust the refrigerant quantity in the refrigerant circulation system; the method comprises the following steps: acquiring an operation mode of an air conditioner; determining an operating frequency of the compressor according to the operating mode; and controlling the driving mechanism to move according to the operation mode and the operation frequency.
Optionally, determining the operating frequency of the compressor according to the operating mode includes: detecting the indoor environment temperature; determining a difference between the indoor environment temperature and a target temperature set by a user; and determining the operation frequency of the compressor corresponding to the difference between the operation mode and the temperature according to the difference between the operation mode and the temperature.
Optionally, controlling the movement of the driving mechanism according to the operation mode and the operation frequency includes: determining a target refrigerant quantity of the refrigerant circulation system according to the operation mode and the operation frequency; determining a difference value between the total refrigerant quantity and the target refrigerant quantity of the refrigerant circulation system; and controlling the driving mechanism to move according to the difference value of the refrigerant quantity.
Optionally, controlling the driving mechanism to move according to the difference of the refrigerant amounts includes: determining a target position of the piston according to the difference value of the refrigerant quantity; determining a current position of the piston; determining a difference between the target position and the current position; and in the case that the difference of the positions is not zero, controlling the driving mechanism to move according to the difference of the positions.
Optionally, the method further comprises: before the driving mechanism is controlled to move according to the difference value of the positions, the electromagnetic valve is opened; after the drive mechanism is controlled to move according to the difference in position, the solenoid valve is closed.
Optionally, one end of the liquid storage tank is opened to form a refrigerant circulation port; the air conditioner also comprises an electromagnetic valve which is connected between the refrigerant circulation port and the refrigerant circulation system; controlling the driving mechanism to move according to the difference value of the positions, comprising: under the condition that the difference value of the positions is larger than zero, the driving mechanism is controlled to move back to the direction of the refrigerant flowing port; and under the condition that the difference of the positions is smaller than zero, controlling the driving mechanism to move towards the direction of the refrigerant flowing port.
Optionally, controlling the driving mechanism to move in a direction back to the refrigerant flowing port according to the difference value of the positions; and controlling the driving mechanism to move towards the direction of the refrigerant flowing port according to the difference value of the positions.
In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to perform the above-described method for conditioning an air conditioning refrigerant when the program instructions are executed.
In some embodiments, the air conditioner includes: the liquid storage tank is provided with a refrigerant circulation port at one end and a through hole at the other end; the piston is arranged in the liquid storage tank and divides the interior of the liquid storage tank into a storage space and a driving space which are not communicated with each other, the storage space is communicated with the refrigerant circulation port, and the driving space is communicated with the through hole; one end of the electromagnetic valve is connected with the refrigerant circulation port, and the other end of the electromagnetic valve is connected with the refrigerant circulation system; one end of the driving mechanism is positioned in the driving space and fixedly connected with the piston, and the other end of the driving mechanism passes through the through hole and is positioned outside the liquid storage tank; and the device for adjusting the air conditioner coolant.
In some embodiments, the storage medium stores program instructions that, when executed, perform the method for conditioning an air conditioning refrigerant described above.
The method and the device for adjusting the air conditioner refrigerant, the air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
and acquiring the current running mode of the air conditioner. The operating frequency of the compressor is determined based on the current operating mode. Because the required refrigerant quantity in the refrigerant circulation system is different under different operation modes and operation frequencies, the driving mechanism is controlled to move so as to change the position of the piston. When the refrigerant circulation system needs to supplement the refrigerant, the refrigerant in the liquid storage tank is discharged through the piston. When the refrigerant circulation system needs to release the refrigerant, the refrigerant in the liquid storage tank is absorbed through the piston. The distance that the driving mechanism drives the piston to move is determined, so that the variation of the refrigerant can be determined, and the accuracy of the refrigerant adjustment in the refrigerant circulation 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 according to an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a fluid reservoir provided in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of electrical connections of an air conditioner provided in an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a method for conditioning an air conditioning refrigerant according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another method for conditioning an air conditioning refrigerant provided by an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of another method for conditioning an air conditioning refrigerant provided by an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of another method for conditioning an air conditioning refrigerant provided by an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of another method for conditioning an air conditioning refrigerant provided by an embodiment of the present disclosure;
fig. 9 is a schematic diagram of an apparatus for conditioning an air conditioning refrigerant according to an embodiment of the present disclosure.
Reference numerals:
1: air-conditioning; 11: a liquid storage tank; 12: a piston; 13: an electromagnetic valve; 14: a driving mechanism; 15: a compressor; 16: a four-way valve; 17: an outdoor heat exchanger; 18: a throttle element; 19: an indoor heat exchanger; 20: a temperature sensor; 21: distance measuring sensor: 41: a processor; 42: a memory; 43: a communication interface; 44: a bus; 111: a refrigerant flow port; 112: a through hole; 113: a storage space; 114: the space is driven.
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.
As shown in fig. 1 to 3, an embodiment of the present disclosure provides an air conditioner 1 including a liquid storage tank 11, a piston 12, an electromagnetic valve 13, a driving mechanism 14, and a refrigerant circulation system. One end of the liquid storage tank 11 is opened to form a refrigerant circulation port 111, and the other end is opened with a through hole 112. The piston 12 is provided in the liquid storage tank 11, and divides the interior of the liquid storage tank 11 into a storage space 113 and a driving space 114 which are not communicated with each other, the storage space 113 is communicated with the refrigerant circulation port 111, and the driving space 114 is communicated with the through hole 112. One end of the solenoid valve 13 is connected to the refrigerant circulation port 111, and the other end is connected to a pipe of the refrigerant circulation system. One end of the driving mechanism 14 is positioned in the driving space 114 and fixedly connected with the piston 12, and the other end passes through the through hole 112 and is positioned outside the liquid storage tank 11. The refrigerant circulation system includes a compressor 15, a four-way valve 16, an outdoor heat exchanger 17, a throttling element 18, and an indoor heat exchanger 19, which are sequentially connected in series to form a circuit.
Alternatively, the driving mechanism 14 is a mechanism capable of rectilinear motion. For example, the drive mechanism 14 may be a linear motor, or may be a combination of a rotary motor, a screw, a coupling, and a nut.
Optionally, the air conditioner 1 further comprises a temperature sensor 20, a distance measuring sensor 21 and a processor 41. The temperature sensor 20 is provided in an indoor unit of the air conditioner 1, and detects an indoor environment temperature. The distance measuring sensor 21 is disposed in the driving space 114 of the liquid storage tank 11, and is located at one end of the through hole 112, and is used for detecting the distance between the piston 12 and the through hole 112. The processor 41 is disposed in the air conditioner 1 and is electrically connected to the electromagnetic valve 13, the driving mechanism 14, the compressor 15, the four-way valve 16, the temperature sensor 20 and the ranging sensor 21, and is configured to determine an operation frequency of the compressor 15 according to an indoor environment temperature detected by the temperature sensor 20, control on/off of the four-way valve 16 according to a user instruction to change an operation mode of the air conditioner 1, control on/off of the electromagnetic valve 13 according to the operation mode, the operation frequency and a distance measured by the ranging sensor 21, control the driving mechanism 14 to move to change a position of the piston 12, and collect and store a refrigerant in the refrigerant circulation system or release the stored refrigerant to the refrigerant circulation system by the liquid storage tank 11 under the condition that the position of the piston 12 is controlled to change, so as to adjust a refrigerant amount in the refrigerant circulation system.
The position of the piston 12 is the distance between the piston 12 and the refrigerant flow port 111. The distance between the refrigerant flowing port 111 and the through hole 112 is determined when the liquid storage tank 11 is designed. The processor 41 determines the position of the piston 12 by calculating the difference between the distance between the refrigerant circulation port 111 and the through hole 112 and the distance between the through hole 112 and the piston 12 measured by the distance measuring sensor 21.
Referring to fig. 4, an embodiment of the disclosure provides a method for adjusting an air conditioning refrigerant, including:
s210, the processor acquires the operation mode of the air conditioner.
S220, the processor determines the operation frequency of the compressor according to the operation mode.
And S230, the processor controls the driving mechanism to move according to the operation mode and the operation frequency.
By adopting the method for adjusting the air conditioner refrigerant provided by the embodiment of the disclosure, the current running mode of the air conditioner is obtained. The operating frequency of the compressor is determined based on the current operating mode. Because the required refrigerant quantity in the refrigerant circulation system is different under different operation modes and operation frequencies, the driving mechanism is controlled to move so as to change the position of the piston. When the refrigerant circulation system needs to supplement the refrigerant, the refrigerant in the liquid storage tank is discharged through the piston. When the refrigerant circulation system needs to release the refrigerant, the refrigerant in the liquid storage tank is absorbed through the piston. The distance that the driving mechanism drives the piston to move is determined, so that the variation of the refrigerant can be determined, and the accuracy of the refrigerant adjustment in the refrigerant circulation system is improved.
Referring to fig. 5, another method for adjusting an air conditioning refrigerant according to an embodiment of the present disclosure includes:
s210, the processor acquires the operation mode of the air conditioner.
S221, detecting indoor environment temperature by a temperature sensor.
S222, the processor determines a difference between the indoor environment temperature and the target temperature set by the user.
S223, the processor determines the operation frequency of the compressor corresponding to the difference between the operation mode and the temperature according to the difference between the operation mode and the temperature.
And S230, the processor controls the driving mechanism to move according to the operation mode and the operation frequency.
By adopting the method for adjusting the air conditioner refrigerant, which is provided by the embodiment of the invention, the operation frequency of the compressor can be determined according to the difference value between the operation mode and the temperature of the air conditioner, and the accuracy of the operation frequency determination is high. And controlling the driving mechanism to move according to the operation mode and the determined operation frequency, wherein the driving mechanism drives the piston to move accurately in distance so as to improve the accuracy of cooling regulation in the cooling medium circulation system.
The difference in temperature in the embodiments of the present disclosure is the absolute value of the difference.
The correspondence between the difference in operation mode and temperature and the operation frequency of the compressor is shown in table 1:
TABLE 1
Figure BDA0003428517400000061
It will be appreciated that the values of the operating frequencies in table 1 corresponding to the differences between the operating modes and the temperatures may be other values for different compressor models, and the present invention is not limited to the values in table 1.
Referring to fig. 6, another method for adjusting an air conditioning refrigerant according to an embodiment of the present disclosure includes:
s210, the processor acquires the operation mode of the air conditioner.
S220, the processor determines the operation frequency of the compressor according to the operation mode.
S231, the processor determines the target refrigerant quantity of the refrigerant circulation system according to the operation mode and the operation frequency.
S232, the processor determines the difference value between the total refrigerant quantity and the target refrigerant quantity of the refrigerant circulation system.
S233, the processor controls the driving mechanism to move according to the difference value of the refrigerant quantity.
By adopting the method for adjusting the air conditioner refrigerants provided by the embodiment of the disclosure, the difference value of the refrigerant quantity is the refrigerant quantity required to be stored in the liquid storage tank, and the driving mechanism is controlled to move according to the refrigerant quantity required to be stored in the liquid storage tank, so that the accuracy of refrigerant adjustment in a refrigerant circulation system is improved.
Optionally, the determining, by the processor in step S231, the target refrigerant amount of the refrigerant circulation system according to the operation mode and the operation frequency includes: the processor determines a target refrigerant quantity of the refrigerant circulation system corresponding to the operation mode and the operation frequency according to the operation mode and the operation frequency. Or the processor determines the target refrigerant quantity of the refrigerant circulation system according to the operation mode, the operation frequency and the total refrigerant quantity of the refrigerant circulation system. Therefore, the target refrigerant quantity can be determined in a table look-up or calculation mode, and the accuracy of determination is high, so that the accuracy of refrigerant adjustment in a refrigerant circulation system is improved.
The corresponding relation between the operation mode and the operation frequency and the target refrigerant quantity of the refrigerant circulation system is shown in table 2:
TABLE 2
Figure BDA0003428517400000071
It is understood that the target refrigerant amount of the refrigerant circulation system corresponding to the operation mode and the operation frequency in table 2 may be other values, and the present invention is not limited to the values in table 2.
Considering the different working frequencies of the compressors of different models under different working conditions, the target refrigerant quantity of the refrigerant circulation system corresponding to the full frequency when the compressors are operated is listed in table 2.
Optionally, the processor determines a target refrigerant amount of the refrigerant circulation system according to the operation mode, the operation frequency and the total refrigerant amount of the refrigerant circulation system, and includes: r is R t ＝R a -α×f e -R m . Which is a kind ofWherein R is t R is the target refrigerant quantity of the refrigerant circulation system a Is the total refrigerant quantity of the refrigerant circulation system, alpha is the operating frequency conversion coefficient, f e R is the operating frequency of the compressor m The maximum refrigerant quantity which can be stored in the liquid storage tank. The conversion coefficients in the formula represent only numerical values and contain no units. When the calculated target refrigerant quantity R t Is greater than the total refrigerant quantity R a At the time, a target refrigerant quantity R is set t Is the total refrigerant quantity R a . Therefore, the target refrigerant quantity of the refrigerant circulation system can be accurately calculated, and the accuracy of determining the target refrigerant quantity is high, so that the accuracy of adjusting the refrigerant in the refrigerant circulation system is improved.
The operation frequency conversion coefficient alpha is a coefficient for converting the operation frequency of the compressor into the refrigerant quantity regulation, and influences the accuracy of refrigerant regulation. The value of alpha is within the range of [ -4, -3], preferably the value of alpha is-3.75, -3.5 or-3.25.
For the refrigerating and heating modes of the same air conditioner, the operating frequency conversion coefficient alpha can take different values so as to adapt to the refrigerant quantity required by the refrigerant circulating system of the air conditioner in different operating modes. For example, in the cooling mode, the operating frequency conversion coefficient α takes a value of-3.25. In the heating mode, the operating frequency conversion coefficient alpha takes on a value of-3.75.
Referring to fig. 7, another method for adjusting an air conditioning refrigerant according to an embodiment of the present disclosure includes:
s210, the processor acquires the operation mode of the air conditioner.
S220, the processor determines the operation frequency of the compressor according to the operation mode.
S231, the processor determines the target refrigerant quantity of the refrigerant circulation system according to the operation mode and the operation frequency.
S232, the processor determines the difference value between the total refrigerant quantity and the target refrigerant quantity of the refrigerant circulation system.
S234, the processor determines the target position of the piston according to the difference value of the refrigerant quantity.
S235, the processor determines the current position of the piston.
S236, the processor determines the difference between the target position and the current position.
And S240, controlling the driving mechanism to move by the processor according to the position difference value under the condition that the position difference value is not zero.
By adopting the method for adjusting the air conditioner refrigerants, which is provided by the embodiment of the disclosure, the difference value of the position of the piston can be determined according to the difference value of the refrigerant quantity, and the driving mechanism can move according to the difference value of the position, so that the accuracy of refrigerant adjustment in the refrigerant circulation system is improved.
Alternatively, the larger the difference in the refrigerant amount, the larger the target position of the piston. Thus, when the difference in the refrigerant amount is large, the piston collects a large amount of refrigerant in the accumulator, and the refrigerant in the refrigerant circulation system is small. The target position of the piston is increased along with the increase of the difference value of the refrigerant quantity, so that the accuracy of the refrigerant adjustment in the refrigerant circulation system is improved.
Optionally, the processor in step S234 determines the target position of the piston according to the difference of the refrigerant amounts, including: h= (α×f) e +R m ) X beta. Wherein h is the target position of the piston, alpha is the operating frequency conversion coefficient, f e R is the operating frequency of the compressor m The maximum refrigerant quantity which can be stored in the liquid storage tank is represented by beta, and the refrigerant quantity conversion coefficient is represented by beta. The conversion coefficients in the formula represent only numerical values and contain no units. Therefore, the position of the piston can be linearly adjusted according to the operating frequency of the compressor, and the accuracy of refrigerant quantity adjustment is high, so that the accuracy of refrigerant adjustment in a refrigerant circulation system is improved.
Maximum refrigerant quantity R capable of being stored in liquid storage tank m The value range of (2) is [200, 400 ]]g, preferably R m The value is 250g, 300g or 350g.
The refrigerant quantity conversion coefficient beta is a coefficient for converting the refrigerant quantity in the liquid storage tank into the position of the piston, and is related to the size of the liquid storage tank. Beta has a value in the range of [0.3,0.7], preferably beta has a value of 0.4, 0.5 or 0.6.
Optionally, the processor in step S235 determines a current position of the piston, including: the distance measuring sensor measures a distance between the through hole and the piston. The processor determines a difference in distance between the refrigerant flow port and the through hole and a distance between the through hole and the piston. The processor determines the difference in distance as the current position of the piston. Therefore, the current position of the piston can be accurately calculated, and the driving mechanism can be conveniently controlled to move, so that the accuracy of cooling regulation in the cooling medium circulation system is improved.
Referring to fig. 8, another method for adjusting an air conditioning refrigerant according to an embodiment of the present disclosure includes:
s210, the processor acquires the operation mode of the air conditioner.
S220, the processor determines the operation frequency of the compressor according to the operation mode.
S231, the processor determines the target refrigerant quantity of the refrigerant circulation system according to the operation mode and the operation frequency.
S232, the processor determines the difference value between the total refrigerant quantity and the target refrigerant quantity of the refrigerant circulation system.
S234, the processor determines the target position of the piston according to the difference value of the refrigerant quantity.
S235, the processor determines the current position of the piston.
S236, the processor determines the difference between the target position and the current position.
S237, the processor determines whether the difference in position is zero. If yes, go back to step S210, if no, go to step S241.
S241, the processor opens the electromagnetic valve.
S242, the processor determines whether the difference in position is greater than zero. If yes, go to step S243. If not, go to step S244.
S243, the processor controls the driving mechanism to move back to the direction of the refrigerant flowing port, and executes step S245.
S244, the processor controls the driving mechanism to move towards the direction of the refrigerant flowing port.
S245, the processor closes the electromagnetic valve and returns to the step S210.
By adopting the method for adjusting the air conditioner refrigerants provided by the embodiment of the disclosure, according to the difference value of the positions, the driving mechanism is controlled to move towards the expected direction so as to change the refrigerant quantity in the liquid storage tank, thereby adjusting the refrigerant quantity in the refrigerant circulation system. The electromagnetic valve is opened to circulate the refrigerant, and the electromagnetic valve is closed to prevent the collected refrigerant from flowing back to the refrigerant circulation system, so that the accuracy of refrigerant regulation in the refrigerant circulation system is improved.
Optionally, the processor in step S243 controls the driving mechanism to move in a direction away from the refrigerant flowing port, and controls the driving mechanism to move in a direction away from the refrigerant flowing port according to the difference value of the positions. The processor in step S244 controls the driving mechanism to move toward the refrigerant flowing port, and controls the driving mechanism to move toward the refrigerant flowing port according to the difference of the positions. Therefore, the moving distance of the driving mechanism is determined, and the adjustment amount of the refrigerant in the refrigerant circulation system is accurate, so that the accuracy of refrigerant adjustment in the refrigerant circulation system is improved.
Specifically, the reservoir is sized to hold 300g of refrigerant (i.e., R m 300 g), the distance between the refrigerant circulation port and the through hole is 200mm. The driving mechanism can drive the piston to move from the refrigerant circulation port by 150mm, and the variable quantity of the refrigerant is 2g when the driving mechanism moves by 1 mm. When the refrigerant quantity in the liquid storage tank is 0g, the total refrigerant quantity of the refrigerant circulation system is 700g. In the cooling mode, the operating frequency conversion coefficient α is-3.25. In the heating mode, the operating frequency conversion coefficient α is-3.75. The refrigerant quantity conversion coefficient β is 0.5. The current operation mode of the air conditioner is a refrigeration mode, the operation frequency of the compressor is 65Hz, and the target refrigerant quantity in the refrigerant circulation system is 611.25g. The distance between the through hole and the piston measured by the distance measuring sensor is 147.5mm. The processor determines that the current position of the piston is 52.5 mm. The processor calculates the target position of the piston according to the formula to be 44.375 mm. The processor determines that the difference between the target position and the current position of the piston is-8.125 mm. The processor controls the driving mechanism to move 8.125mm towards the direction of the refrigerant circulation port, the liquid storage tank releases 16.25g of refrigerant quantity to the refrigerant circulation system, and the refrigerant quantity in the liquid storage tank is 88.75g. The refrigerant quantity in the refrigerant circulation system is 611.25g, and is the same as the target refrigerant quantity, so that the accurate adjustment of the refrigerant quantity is realized. The control method of the refrigerant quantity in the heating mode is the same as that in the cooling mode, and will not be described here again.
Referring to fig. 9, an embodiment of the present disclosure provides an apparatus for conditioning an air conditioning refrigerant, including a processor (processor) 41 and a memory (memory) 42. Optionally, the apparatus may also include a communication interface (Communication Interface) 43 and a bus 44. The processor 41, the communication interface 43 and the memory 42 may communicate with each other via a bus 44. The communication interface 43 may be used for information transmission. The processor 41 may call logic instructions in the memory 42 to perform the method for conditioning an air conditioning refrigerant of the above-described embodiment.
Further, the logic instructions in the memory 42 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 42 serves 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 41 executes the program instructions/modules stored in the memory 42 to perform functional applications and data processing, i.e., to implement the method for conditioning an air conditioning refrigerant in the above-described embodiment.
Memory 42 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 42 may include high-speed random access memory, and may also include non-volatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the device for adjusting the refrigerant of the air conditioner.
Embodiments of the present disclosure provide a storage medium storing computer-executable instructions configured to perform the above-described method for conditioning an air conditioning refrigerant.
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 according to 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 (10)

1. A method for conditioning an air conditioning refrigerant, the air conditioner comprising: the liquid storage tank is connected with a refrigerant circulation system of the air conditioner; the piston is arranged in the liquid storage tank; the driving mechanism is connected with the piston, and the position of the piston is changed by controlled movement; under the condition that the position of the piston is controlled to be changed, the liquid storage tank can collect and store the refrigerant in the refrigerant circulation system or release the stored refrigerant to the refrigerant circulation system so as to adjust the refrigerant quantity in the refrigerant circulation system; the method comprises the following steps:
acquiring an operation mode of an air conditioner;
determining an operating frequency of the compressor according to the operating mode;
and controlling the driving mechanism to move according to the operation mode and the operation frequency.
2. The method of claim 1, wherein determining an operating frequency of the compressor based on the operating mode comprises:
detecting the indoor environment temperature;
determining a difference between the indoor environment temperature and a target temperature set by a user;
and determining the operation frequency of the compressor corresponding to the difference between the operation mode and the temperature according to the difference between the operation mode and the temperature.
3. The method of claim 1, wherein controlling movement of the drive mechanism according to the operating mode and the operating frequency comprises:
determining a target refrigerant quantity of the refrigerant circulation system according to the operation mode and the operation frequency;
determining a difference value between the total refrigerant quantity and the target refrigerant quantity of the refrigerant circulation system;
and controlling the driving mechanism to move according to the difference value of the refrigerant quantity.
4. The method of claim 3, wherein controlling the movement of the driving mechanism according to the difference in the amount of the refrigerant comprises:
determining a target position of the piston according to the difference value of the refrigerant quantity;
determining a current position of the piston;
determining a difference between the target position and the current position;
and in the case that the difference of the positions is not zero, controlling the driving mechanism to move according to the difference of the positions.
5. The method as recited in claim 4, further comprising:
before the driving mechanism is controlled to move according to the difference value of the positions, the electromagnetic valve is opened;
after the drive mechanism is controlled to move according to the difference in position, the solenoid valve is closed.
6. The method of claim 4 or 5, wherein the liquid storage tank is open at one end to form a refrigerant flow port; the air conditioner also comprises an electromagnetic valve which is connected between the refrigerant circulation port and the refrigerant circulation system; controlling the driving mechanism to move according to the difference value of the positions, comprising:
under the condition that the difference value of the positions is larger than zero, the driving mechanism is controlled to move back to the direction of the refrigerant flowing port;
and under the condition that the difference of the positions is smaller than zero, controlling the driving mechanism to move towards the direction of the refrigerant flowing port.
7. The method of claim 6, wherein the driving mechanism is controlled to move in a direction away from the refrigerant flowing port according to the difference in position; and controlling the driving mechanism to move towards the direction of the refrigerant flowing port according to the difference value of the positions.
8. An apparatus for conditioning an air conditioning refrigerant comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for conditioning an air conditioning refrigerant of any of claims 1 to 7 when the program instructions are run.
9. An air conditioner, comprising:
a liquid storage tank (11), one end of which is opened to form a refrigerant circulation port (111), and the other end of which is opened with a through hole (112);
a piston (12) which is arranged in the liquid storage tank (11) and divides the interior of the liquid storage tank (11) into a storage space (113) and a driving space (114) which are not communicated with each other, wherein the storage space (113) is communicated with the refrigerant circulation port (111), and the driving space (114) is communicated with the through hole (112);
one end of the electromagnetic valve (13) is connected with the refrigerant circulation port (111), and the other end of the electromagnetic valve is connected with the refrigerant circulation system;
one end of the driving mechanism (14) is positioned in the driving space (114) and fixedly connected with the piston (12), and the other end of the driving mechanism passes through the through hole (112) and is positioned outside the liquid storage tank (11); and, a step of, in the first embodiment,
the apparatus for conditioning an air conditioning refrigerant as set forth in claim 8.
10. A storage medium storing program instructions which, when executed, perform the method for conditioning an air conditioning refrigerant according to any one of claims 1 to 7.
CN202111588999.2A 2021-12-23 2021-12-23 Method and device for adjusting air conditioner refrigerant, air conditioner and storage medium Pending CN116336619A (en)

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CN202111588999.2A CN116336619A (en) 2021-12-23 2021-12-23 Method and device for adjusting air conditioner refrigerant, air conditioner and storage medium
PCT/CN2022/105419 WO2023115919A1 (en) 2021-12-23 2022-07-13 Method and apparatus for adjusting refrigerant of air conditioner, and air conditioner and storage medium

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CN103380334B (en) * 2011-02-22 2016-03-16 日立空调·家用电器株式会社 Freezing cycle device
CN203231423U (en) * 2013-04-15 2013-10-09 广东美的制冷设备有限公司 Air conditioner with function of automatically adjusting quantity of refrigerants of system
KR101474356B1 (en) * 2013-07-18 2014-12-19 한국에너지기술연구원 Heat pump system capable of adjusting refrigerant amount of liquid receiver
CN104676944B (en) * 2013-11-28 2018-04-03 合肥美的暖通设备有限公司 Air-conditioning system and its refrigerant adjusting method
CN107036209A (en) * 2017-04-12 2017-08-11 美的集团武汉制冷设备有限公司 Air conditioner
CN112682902B (en) * 2020-12-30 2022-04-22 Tcl空调器(中山)有限公司 Refrigerant distribution method of air conditioner, air conditioner and storage medium

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