CN112944613A - Control method and device for air conditioner and air conditioner - Google Patents

Control method and device for air conditioner and air conditioner Download PDF

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Publication number
CN112944613A
CN112944613A CN202110128350.6A CN202110128350A CN112944613A CN 112944613 A CN112944613 A CN 112944613A CN 202110128350 A CN202110128350 A CN 202110128350A CN 112944613 A CN112944613 A CN 112944613A
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China
Prior art keywords
air conditioner
target
temperature
refrigerant
determining
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Granted
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CN202110128350.6A
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Chinese (zh)
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CN112944613B (en
Inventor
张振富
张玲玲
贺秋霞
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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 CN202110128350.6A priority Critical patent/CN112944613B/en
Publication of CN112944613A publication Critical patent/CN112944613A/en
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Publication of CN112944613B publication Critical patent/CN112944613B/en
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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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • 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
    • 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
    • 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
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/10—Weather information or forecasts
    • 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
    • F25B2600/00—Control issues
    • F25B2600/05—Refrigerant levels
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method for an air conditioner, wherein the air conditioner comprises a throttle valve arranged at the inlet end of a capillary tube and a liquid storage tank arranged on a branch between the throttle valve and a condenser, and the control method comprises the following steps: acquiring the outdoor environment temperature within a preset time length, and determining the operation mode of the air conditioner according to the outdoor environment temperature within the preset time length; determining a target temperature of the air conditioner in an operation mode; determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the target temperature; and adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage capacity in the liquid storage tank to the target refrigerant storage capacity. The control method and the control device can adjust the opening degree of the throttle valve and adjust the circulation volume of the refrigerant in the air conditioner according to different target temperatures in different operation modes, improve the utilization rate of energy sources, and improve the energy efficiency of the air conditioner. The application also discloses a controlling means and air conditioner for the air conditioner.

Description

Control method and device for air conditioner and air conditioner
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a control method and device for an air conditioner and the air conditioner.
Background
A window type air conditioner is a small air conditioner that can be mounted on a window. The window type air conditioner is an integrated machine integrating an evaporator, a condenser and other components, and has simple structure and convenient installation. With the continuous improvement of living standard of people, the requirement on air treatment equipment is higher and higher.
At present, the refrigerant injection amount of a window type air conditioner is determined by adjusting through repeated tests in the air conditioner research and development process. In the actual operation process, different operation temperatures correspond to different refrigerating capacities, but when the operation temperatures are different, the length of a capillary tube for throttling and depressurizing in the window type air conditioner cannot be changed, and the circulation quantity of a refrigerant in the system cannot be changed, so that the throttling effect of a throttling device of the window type air conditioner is fixed, namely, the pressure drop of the refrigerant generated by the throttling device is fixed, and the circulation quantity of the refrigerant in the system cannot be changed due to the change of the temperature, so that the energy efficiency of the window type air conditioner in the operation process is low, and the utilization rate of energy is poor.
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 nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method and device for an air conditioner and the air conditioner, and aims to solve the problem of low energy efficiency of the air conditioner.
In some embodiments, the air conditioner includes a throttle valve disposed at an inlet end of the capillary tube and a liquid reservoir disposed on a branch between the throttle valve and the condenser, the control method including: acquiring the outdoor environment temperature within a preset time length, and determining the operation mode of the air conditioner according to the outdoor environment temperature within the preset time length; determining a target temperature of the air conditioner in an operation mode; determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the target temperature; and adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage capacity in the liquid storage tank to the target refrigerant storage capacity.
In some embodiments, determining the operation mode of the air conditioner according to the outdoor ambient temperature for the preset time period includes: if the outdoor environment temperature is greater than or equal to the preset temperature, determining that the operation mode of the air conditioner is a refrigeration mode; and if the outdoor environment temperature is lower than the preset temperature, determining that the operation mode of the air conditioner is a heating mode.
In some embodiments, determining a target temperature of the air conditioner in the operation mode includes: acquiring a temperature set by a user in an operation mode as a target temperature; or, determining the target temperature according to the temperature set by the user for multiple times within the preset time length.
In some embodiments, determining a target temperature of the air conditioner in the operation mode includes: acquiring current season information and geographical position information of an air conditioner; and determining the target temperature of the air conditioner in the running mode according to the current season information and the geographical position information.
In some embodiments, determining the target opening of the throttle valve based on the target temperature comprises: and acquiring the indoor environment temperature, and determining the target opening of the throttle valve according to the difference value between the indoor environment temperature and the target temperature.
In some embodiments, determining the target opening degree of the throttle valve based on a difference between the indoor ambient temperature and the target temperature includes: if the difference value between the indoor environment temperature and the target temperature is larger than or equal to a first preset temperature difference value, acquiring a first opening range of the throttle valve, and taking the opening associated with the target temperature in the first opening range as a target opening; if the difference value between the indoor environment temperature and the target temperature is smaller than the first preset temperature difference value and larger than the second preset temperature difference value, acquiring a second opening range of the throttle valve, and taking the opening associated with the target temperature in the second opening range as the target opening; and if the difference value between the indoor environment temperature and the target temperature is smaller than the second preset temperature difference value, acquiring a third opening range of the throttle valve, and taking the opening degree in the third opening range associated with the target temperature as the target opening degree.
In some embodiments, determining a target refrigerant storage capacity of the receiver based on the target temperature includes: determining the target refrigerant circulation quantity of the air conditioner according to the target temperature; and acquiring the refrigerant injection amount of the air conditioner, and determining the target refrigerant storage amount of the liquid storage tank according to the difference value between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner.
In some embodiments, the air conditioner further includes a first check valve connected to the liquid inlet end of the liquid storage tank and a second check valve connected to the liquid outlet end of the liquid storage tank, and the adjusting of the refrigerant storage capacity in the liquid storage tank to the target storage capacity includes: controlling the first one-way valve to be opened and the second one-way valve to be closed so as to enable the refrigerant to flow into the liquid storage tank, and controlling the first one-way valve to be closed when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner; or the first one-way valve is controlled to be closed, the second one-way valve is controlled to be opened so that the refrigerant flows out of the liquid storage tank, and the second one-way valve is controlled to be closed when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner.
In some embodiments, the control device comprises: a processor and a memory storing program instructions, the processor being configured to execute the control method for an air conditioner as provided in the foregoing embodiments when executing the program instructions.
In some embodiments, the air conditioner includes: the control device for an air conditioner as provided in the foregoing embodiments.
The control method and device for the air conditioner and the air conditioner provided by the embodiment of the disclosure can achieve the following technical effects:
the operation mode of the air conditioner can be determined according to the outdoor environment temperature within the preset time length, the target temperature can be determined after the operation mode of the air conditioner is determined, the target opening degree of the throttle valve and the target refrigerant storage capacity of the liquid storage tank can be determined according to the target temperature, and the air conditioner is controlled to operate on the basis. Therefore, the opening of the throttle valve and the circulation of the refrigerant in the air conditioner can be adjusted according to different target temperatures in different operation modes, the utilization rate of energy is improved, the energy efficiency of the air conditioner is improved, and the electric quantity is saved.
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 in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic structural diagram of an air conditioner provided in an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a control method for an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a control device for an air conditioner according to an embodiment of the present disclosure.
Reference numerals:
001. an evaporator; 002. a condenser; 003. a capillary tube; 004. a throttle valve;
005. a liquid storage tank; 006. a first check valve; 007. a second one-way valve.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. 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 be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 1, the air conditioner includes an evaporator 001, a condenser 002, a capillary tube 003 connected between the evaporator 001 and the condenser 002, a throttle valve 004 disposed at an inlet end of the capillary tube 003, and a liquid storage tank 005 disposed on a branch between the throttle valve 004 and the condenser 002. The opening degree of the throttle valve 004 can be adjusted. Alternatively, a throttle valve may also be provided at the outlet end of the capillary tube 003. The liquid storage tank 005 is used for storing redundant refrigerants in the air conditioner operation process, or, supplements the refrigerants in the air conditioner operation process, specifically, in order to realize the adjustment of the refrigerant memory space in the liquid storage tank 005, the air conditioner further comprises a first check valve 006 connected with the liquid inlet end of the liquid storage tank 005 and a second check valve 007 connected with the liquid outlet end of the liquid storage tank 005, the refrigerant memory space in the liquid storage tank 005 is adjusted through the opening or closing of the first check valve and the closing or opening of the second check valve, and therefore the refrigerant circulation amount in the air conditioner operation process can be changed. Optionally, in the cooling mode, the larger the cooling capacity is, the smaller the opening of the throttle valve is, and the smaller the refrigerant storage capacity of the liquid storage tank is. Alternatively, the air conditioner provided in the embodiments of the present disclosure may be a window type air conditioner.
In practical application, the outdoor environment temperature can be obtained through temperature sensing, and the operation mode of the air conditioner is determined according to the outdoor environment temperature within the preset time length. The target temperature of the air conditioner can be determined according to the determined operation mode of the air conditioner, and the target opening degree of the throttle valve and the target refrigerant storage capacity of the liquid storage tank are determined according to the target temperature. And under the condition that the opening of the throttle valve is adjusted to the target opening and the refrigerant storage amount in the liquid storage tank is adjusted to the target storage amount, controlling the air conditioner to operate under the condition so as to adjust the temperature in the space where the air conditioner is located.
Fig. 2 is a schematic diagram of a control method for an air conditioner according to an embodiment of the present disclosure. Referring to fig. 2, an embodiment of the present disclosure provides a control method for an air conditioner, including:
and S11, acquiring the outdoor environment temperature within the preset time length, and determining the operation mode of the air conditioner according to the outdoor environment temperature within the preset time length.
And S12, determining the target temperature of the air conditioner in the running mode.
And S13, determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the target temperature.
And S14, adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage amount in the liquid storage tank to the target refrigerant storage amount.
In step S11, the outdoor ambient temperature for the preset time period may be acquired and the operation mode of the air conditioner may be determined according to the outdoor ambient temperature for the preset time period.
In this embodiment, the preset time period may be set to 2 hours.
In this aspect, in order to detect the outdoor ambient temperature, a temperature detection device may be installed on the outdoor unit side of the air conditioner, and specifically, the temperature detection device may be a temperature sensor. In one example, the air conditioner operation modes corresponding to different outdoor ambient temperatures may be preset when the air conditioner leaves the factory. In another example, outdoor ambient temperatures corresponding to different seasons may be preset at the time of factory shipment, so that season information may be acquired and the air conditioner operation mode may be determined according to the season information. In another example, a preset temperature may be set in advance, and the operation mode of the air conditioner may be determined by a difference between the preset temperature and an ambient temperature within a preset time period.
In step S12, a target temperature of the air conditioner in the operation mode may be determined. The operation mode may include a cooling mode, a heating mode, and the like. In one example, the target temperature of the air conditioner in the operation mode may be a temperature currently manually set by a user. In another example, the temperatures set by the user in the operation mode for a preset time period may be obtained, and the target temperature may be determined accordingly, for example, the temperature with the largest number of times of setting may be used as the target temperature, or the average value of the temperatures set for a plurality of times may be used as the target temperature, and so on, which may help to improve the comfort of the air conditioner.
In step S13, a target opening of the throttle valve and a target refrigerant storage amount of the accumulator may be determined according to the target temperature.
In this embodiment, various manners may be provided to determine the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank according to the target temperature, which will be described in the following by way of example. In one example, each target temperature may correspond to a target opening degree of the throttle valve and a target refrigerant storage amount of the receiver. For example, in the cooling mode, the target temperature of the air conditioner is 24 ℃, the target opening degree of the throttle valve is correspondingly set to be 50, and the target refrigerant storage capacity of the liquid storage tank is 90 g. In another example, the target opening degree of the throttle valve may be determined according to a difference value determined between the target temperature and the indoor environment temperature of the space where the air conditioner is located, so as to improve the accuracy of the air conditioner in adjusting the opening degree of the throttle valve and the refrigerant storage amount of the liquid storage tank.
In step S14, the opening degree of the throttle valve may be adjusted to a target opening degree, and the refrigerant storage amount in the tank may be adjusted to the target refrigerant storage amount.
In this embodiment, the air conditioner is operated under the condition of step S14, so that the energy efficiency of the air conditioner and the utilization rate of the refrigerant energy can be improved. Therefore, under the condition that the target temperature is changed, the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank are correspondingly changed, so that the adjustment of the opening of the throttle valve and the adjustment of the refrigerant circulation amount in the air conditioner can be realized according to different temperatures in different operation modes, and the utilization rate of energy and the energy efficiency of the air conditioner are improved.
By adopting the control method for the air conditioner, the operation mode of the air conditioner can be determined according to the outdoor environment temperature within the preset time length, the target temperature can be determined after the operation mode of the air conditioner is determined, the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank can be determined according to the target temperature, and the air conditioner is controlled to operate on the basis. Therefore, the opening of the throttle valve and the circulation of the refrigerant in the air conditioner can be adjusted according to different target temperatures in different operation modes, the utilization rate of energy is improved, and the energy efficiency of the air conditioner is improved.
Optionally, the determining the operation mode of the air conditioner according to the outdoor environment temperature within the preset time period may be embodied as the following manner: if the outdoor environment temperature is greater than or equal to the preset temperature, determining that the operation mode of the air conditioner is a refrigeration mode; and if the outdoor environment temperature is lower than the preset temperature, determining that the operation mode of the air conditioner is a heating mode.
In this aspect, the preset temperature may be a temperature determined by a developer of the air conditioner according to a temperature over a certain period of time, for example, a year-round temperature analysis for each of the last ten years. When the outdoor environment temperature is greater than or equal to the preset temperature, the current outdoor environment is in a higher temperature state, and the corresponding indoor environment temperature may exceed the temperature which is suitable for the user, so that the operation mode of the air conditioner is determined to be the cooling mode. Or, when the outdoor environment temperature is lower than the preset temperature, it indicates that the current outdoor environment is in a state of higher temperature, and at this time, the corresponding indoor environment temperature may be lower, which may cause a cold feeling to the user, thereby determining that the operation mode of the air conditioner is the heating mode. With this scheme, can confirm the operational mode of air conditioner according to different outdoor ambient temperature, improved the accuracy of air conditioner control.
Optionally, in order to accurately determine the target temperature of the air conditioner in the operation mode, the temperature set by the user in the operation mode may be acquired as the target temperature; alternatively, the target temperature may be determined according to a temperature set by the user for a plurality of times within a preset time period.
In this scheme, the temperature set by the user in the operation mode autonomously can be acquired as the target temperature. In one example, the target operation temperature after the air conditioner is powered on in the cooling mode may be set to be 21 ℃ and the target operation temperature after the air conditioner is powered on in the heating mode may be set to be 26 ℃ according to the relevant national standard of the air conditioner.
In the scheme, the temperature can be automatically set according to the use habit of the user. In one example, the operation mode information and the set temperature information after the air conditioner is started in the last 30 days are obtained, and the target temperature is determined according to the temperature set by the user for multiple times in the same mode. Specifically, a plurality of set temperatures in the heating mode of the air conditioner in the last 30 days are acquired, and an average value of the plurality of set temperatures may be obtained as a target temperature by calculation, or a maximum value of the plurality of set temperatures may be used as the target temperature, or a temperature value with the largest number of times set by the user may be used as the target temperature. Therefore, the target operation temperature of the air conditioner during starting can be set, the air conditioner can provide the appropriate target temperature for the user, and the convenience of the air conditioner is improved.
Alternatively, determining the target temperature of the air conditioner in the operation mode may include: acquiring current season information and geographical position information of an air conditioner; and determining the target temperature of the air conditioner in the running mode according to the current season information and the geographical position information.
According to the scheme, the current season information of the air conditioner and the geographic information of the air conditioner can be determined through the weather forecast information, and then the operation mode of the air conditioner and the target temperature of the air conditioner, which is suitable for the user body feeling, in the operation mode are determined. Here, the target temperature suitable for the user's body feeling means a temperature comfortable for the user. For example, the temperature suitable for the user to feel is 23-28 ℃ in summer and 18-25 ℃ in autumn and winter.
In order to more accurately obtain the target temperature, different suitable user body sensing temperatures corresponding to different geographical position information and different season information in different operation modes can be stored in advance, and the different suitable user body sensing temperatures can be used as the range of the operation temperature, so that the target temperature can be selected from different operation temperature ranges. For example, the harbin region is located between the east longitude 125 degrees 42-130 degrees 10 degrees and the north latitude 44 degrees 04-46 degrees 40 degrees, the average temperature in autumn is 13-22 ℃, and a user can feel cold indoors, but the cold feeling of the user is not strong because the temperature in autumn is zero, and a middle value can be selected as a target temperature in a range suitable for the sensible temperature of the user; for the Harbin region, the temperature in winter is below zero, and the maximum value can be selected as the target temperature in the range suitable for the body sensing temperature of the user.
In one example, the air conditioner may be provided with a recording device of season information, and geographical location information of an installation place of the air conditioner may be directly entered at the time of installation of the air conditioner, so as to prevent it from being unable to receive weather forecast information.
Alternatively, in order to more accurately determine the target opening degree of the throttle valve, in this scheme, the indoor ambient temperature may be acquired, and the target opening degree of the throttle valve may be determined according to a difference between the indoor ambient temperature and the target temperature.
In this aspect, a temperature detection device may be installed at an indoor unit side of the air conditioner for detecting an indoor ambient temperature, and specifically, the temperature detection device may be a temperature sensor. In some examples, the air conditioner may further communicate with an electronic thermometer in a space where an indoor unit side of the air conditioner is located, thereby obtaining a temperature of an indoor environment detected by the electronic thermometer, thereby reducing a cost of the air conditioner. Alternatively, the electronic thermometer may be a small independent household appliance, or may be provided on other household appliances. Therefore, the linkage of the air conditioner and other household appliances can be realized. Alternatively, in order to improve the accuracy of the indoor ambient temperature, a plurality of temperature sensing devices may be installed at different positions in the space where the indoor unit side of the air conditioner is located, and the indoor ambient temperature may be determined by obtaining an average value of the temperatures of the plurality of temperature sensors.
In another implementation of the present disclosure, the target opening of the throttle valve may be directly determined according to the target temperature. For example, a target opening degree of the throttle valve and a target refrigerant storage amount of the receiver may be set for each target temperature. Specifically, when the target temperature of the air conditioner is 24 ℃ in determining that the operation mode of the air conditioner is the cooling mode, the target opening degree of the throttle valve is correspondingly set to 50.
Further, in order to further improve the accuracy of determining the target opening degree, the determining the target opening degree of the throttle valve according to the difference between the indoor environment temperature and the target temperature includes: if the difference value between the indoor environment temperature and the target temperature is larger than or equal to a first preset temperature difference value, acquiring a first opening range of the throttle valve, and taking the opening associated with the target temperature in the first opening range as a target opening; if the difference value between the indoor environment temperature and the target temperature is smaller than the first preset temperature difference value and larger than the second preset temperature difference value, acquiring a second opening range of the throttle valve, and taking the opening associated with the target temperature in the second opening range as the target opening; and if the difference value between the indoor environment temperature and the target temperature is smaller than the second preset temperature difference value, acquiring a third opening range of the throttle valve, and taking the opening degree in the third opening range associated with the target temperature as the target opening degree.
The present embodiment will be described below by taking the first opening range as an example. In an embodiment of the present disclosure, the first opening degree range may be stored in advance, and the temperature value corresponding to each opening degree in the first opening degree range is stored in advance, and the second opening degree range and the third opening degree range are set in the same manner. Note that there is no case where the opening values in the first opening degree range, the second opening degree range, and the third opening degree range have an intersection value.
Therefore, the opening degree in the first opening degree range associated with the target temperature means that the target temperature is within a preset temperature range corresponding to any one opening degree in the first opening degree range, and the target temperature is associated with the opening degree at this time, and the opening degree can be determined as the target opening degree.
In some embodiments, determining a target refrigerant storage capacity of the receiver based on the target temperature includes: determining the target refrigerant circulation quantity of the air conditioner according to the target temperature; and acquiring the refrigerant injection amount of the air conditioner, and determining the target refrigerant storage amount of the liquid storage tank according to the difference value between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner.
In the development process of the air conditioner, the refrigerant injection amount of the air conditioner is determined according to the air conditioner operation conditions under various different working conditions, so that the air conditioner may inject excessive refrigerant in order to adapt to different working conditions. When the target temperatures of the air conditioners are different, different cooling capacities are required, and the refrigerant circulation capacities required in the air conditioners are also different. The different working conditions referred to herein include standard working conditions and extreme working conditions in the operation of the air conditioner.
As an example, the refrigeration capacity of the air conditioner and the required refrigerant circulation quantity at the time can be calculated according to the target temperature, and then the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner is obtained by obtaining the refrigerant injection quantity of the air conditioner, and the target refrigerant storage quantity of the liquid storage tank is determined, so as to ensure the accuracy of the target storage quantity of the liquid storage tank. Alternatively, when the air conditioner is injected with the refrigerant, a part of the refrigerant is directly injected into the liquid storage tank, and the weight of the part of the refrigerant is recorded. Therefore, when the air conditioner is started up and firstly adjusted, the quantity of the refrigerant flowing into the liquid storage tank or the quantity of the refrigerant flowing out of the liquid storage tank can be determined by calculating the difference value between the target refrigerant storage quantity of the liquid storage tank and the refrigerant storage quantity of the liquid storage tank at the moment.
Optionally, after determining the target refrigerant storage amount of the liquid storage tank according to the target temperature, the method further includes: and measuring the refrigerant storage capacity of the liquid storage tank at the moment, and determining the amount of the refrigerant flowing into the liquid storage tank or the amount of the refrigerant flowing out of the liquid storage tank by calculating the difference value between the target refrigerant storage capacity of the liquid storage tank and the refrigerant storage capacity of the liquid storage tank at the moment so as to simplify the adjustment of the refrigerant storage capacity of the liquid storage tank.
Specifically, in order to realize the regulation of the refrigerant memory space in the liquid storage tank, the air conditioner still includes the first check valve that is connected with liquid storage pot inlet end and the second check valve that is connected with liquid storage pot outlet end, adjusts the refrigerant memory space in the liquid storage tank to the target memory space, includes: controlling the first one-way valve to be opened and the second one-way valve to be closed so as to enable the refrigerant to flow into the liquid storage tank, and controlling the first one-way valve to be closed when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner; or the first one-way valve is controlled to be closed, the second one-way valve is controlled to be opened so that the refrigerant flows out of the liquid storage tank, and the second one-way valve is controlled to be closed when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner.
In the scheme, the adjustment of the refrigerant storage capacity in the liquid storage tank can be realized by the method, so that the refrigerant storage capacity in the liquid storage tank is adjusted to the target refrigerant storage capacity. In one example, a sensing device, specifically a gravity sensor or a pressure sensor, may be mounted at the bottom of the fluid reservoir. For example, when the refrigerant needs to flow to the liquid storage tank, the first check valve is controlled to be opened, the second check valve is controlled to be closed, and when the refrigerant storage amount of the liquid storage tank detected by the sensing device is matched with the difference value between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner, the first check valve is controlled to be closed, and the second check valve is controlled to be closed; when the refrigerant needs to flow out of the liquid storage tank, the second one-way valve is controlled to be opened, the first one-way valve is controlled to be closed, and when the refrigerant storage capacity of the liquid storage tank detected by the sensing device is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner, the second one-way valve is controlled to be closed, and the first one-way valve is controlled to be closed. The matching of the refrigerant storage capacity of the liquid storage tank with the difference between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner means that the refrigerant storage capacity of the liquid storage tank is equal to the difference between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner; or, if a preset difference range of the difference between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner is prestored, and if the difference between the refrigerant storage amount of the liquid storage tank and the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner is within the preset range, the refrigerant storage amount of the liquid storage tank is matched with the difference between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner.
In another example, a flow rate detection device and a timing device may be further provided at the first check valve and the second check valve. After the target refrigerant storage capacity of the liquid storage tank is determined, the amount of the refrigerant in the current liquid storage tank can be determined, the amount of the refrigerant to flow into or flow out of the liquid storage tank in the calculation of the refrigerant difference value of the refrigerant and the target refrigerant storage capacity of the liquid storage tank can be determined, and the amount of the refrigerant flowing into or flowing out of the liquid storage tank can be determined by measuring the flow rate and the time of the refrigerant passing through the first check valve/the second check valve. For example, when the refrigerant needs to flow to the liquid storage tank, the first check valve is controlled to be opened, the second check valve is controlled to be closed, the flow rate of the refrigerant passing through the first check valve is detected, the amount of the refrigerant flowing through the first check valve per second is calculated, after a period of time, the amount of the refrigerant flowing into the liquid storage tank through the first check valve is matched with the refrigerant difference value, the first check valve is controlled to be closed, and the second check valve is controlled to be closed; when the refrigerant needs to flow out of the liquid storage tank, the second one-way valve is controlled to be opened, the first one-way valve is controlled to be closed, the flow rate of the refrigerant passing through the second one-way valve is detected, the amount of the refrigerant flowing through the first one-way valve every second is calculated, after a period of time, the amount of the refrigerant flowing out of the liquid storage tank through the second one-way valve is matched with the refrigerant difference value, the second one-way valve is controlled to be closed, and the first one-way valve is closed. The refrigerant quantity flowing into the liquid storage tank through the first check valve is matched with the refrigerant difference value, namely the refrigerant quantity flowing into the liquid storage tank through the first check valve is equal to the refrigerant difference value; or, if the preset range of the refrigerant difference value is prestored, if the amount of the refrigerant flowing into the liquid storage tank through the first check valve is within the preset range of the refrigerant difference value, it is indicated that the amount of the refrigerant flowing into the liquid storage tank through the first check valve is matched with the refrigerant difference value. In addition, the meaning that the quantity of the refrigerant flowing out of the liquid storage tank through the second one-way valve is matched with the refrigerant difference value is as described above, and the description is omitted here.
Fig. 3 is a schematic diagram of a control device for an air conditioner according to an embodiment of the present disclosure. As shown in fig. 3, an embodiment of the present disclosure provides a control device for an air conditioner, including a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the control method for the air conditioner of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the control method for the air conditioner in the above-described embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the control device for the air conditioner.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for an air conditioner.
The disclosed embodiments provide a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform the above-described control method for an air conditioner.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify 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. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "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, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would 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 may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart 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 disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A control method for an air conditioner, the air conditioner including a throttle valve provided at an inlet end of a capillary tube and a liquid reservoir provided on a branch between the throttle valve and a condenser, the control method comprising:
acquiring the outdoor environment temperature within a preset time length, and determining the operation mode of the air conditioner according to the outdoor environment temperature within the preset time length;
determining a target temperature of the air conditioner in the operation mode;
determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the target temperature;
and adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage capacity in the liquid storage tank to the target refrigerant storage capacity.
2. The control method according to claim 1, wherein the determining the operation mode of the air conditioner according to the outdoor ambient temperature within the preset time period comprises:
if the outdoor environment temperature is greater than or equal to a preset temperature, determining that the operation mode of the air conditioner is a refrigeration mode;
and if the outdoor environment temperature is lower than the preset temperature, determining that the operation mode of the air conditioner is a heating mode.
3. The control method of claim 1, wherein the determining a target temperature of the air conditioner in the operation mode comprises:
acquiring the temperature set by the user in the running mode as a target temperature; alternatively, the first and second electrodes may be,
and determining the target temperature according to the temperature set by the user for multiple times within the preset time length.
4. The control method of claim 1, wherein the determining a target temperature of the air conditioner in the operation mode comprises:
acquiring current season information and geographical position information of the air conditioner;
and determining the target temperature of the air conditioner in the running mode according to the current season information and the geographical position information.
5. The method of claim 1, wherein said determining a target opening of the throttle valve based on the target temperature comprises:
and acquiring the indoor environment temperature, and determining the target opening of the throttle valve according to the difference value between the indoor environment temperature and the target temperature.
6. The control method according to claim 5, wherein the determining the target opening degree of the throttle valve based on the difference between the indoor ambient temperature and the target temperature includes:
if the difference value between the indoor environment temperature and the target temperature is larger than or equal to a first preset temperature difference value, acquiring a first opening range of the throttle valve, and taking the opening associated with the target temperature in the first opening range as a target opening;
if the difference value between the indoor environment temperature and the target temperature is smaller than a first preset temperature difference value and larger than a second preset temperature difference value, acquiring a second opening range of the throttle valve, and taking the opening in the second opening range associated with the target temperature as a target opening;
and if the difference value between the indoor environment temperature and the target temperature is smaller than a second preset temperature difference value, acquiring a third opening range of the throttle valve, and taking the opening degree associated with the target temperature in the third opening range as the target opening degree.
7. The control method of claim 1, wherein the determining a target refrigerant storage capacity of the liquid storage tank according to the target temperature comprises:
determining the target refrigerant circulation quantity of the air conditioner according to the target temperature;
and acquiring the refrigerant injection amount of the air conditioner, and determining the target refrigerant storage amount of the liquid storage tank according to the difference value between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner.
8. The control method of claim 7, wherein the air conditioner further comprises a first check valve connected to an inlet end of the liquid storage tank and a second check valve connected to an outlet end of the liquid storage tank, and the adjusting the refrigerant storage capacity in the liquid storage tank to a target refrigerant storage capacity comprises:
controlling the first one-way valve to be opened and the second one-way valve to be closed so as to enable the refrigerant to flow into the liquid storage tank, and controlling the first one-way valve to be closed when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner;
or, the first one-way valve is controlled to be closed, the second one-way valve is controlled to be opened so that the refrigerant flows out of the liquid storage tank, and when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner, the second one-way valve is controlled to be closed.
9. A control device for an air conditioner comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute the control method for an air conditioner according to any one of claims 1 to 8 when executing the program instructions.
10. An air conditioner characterized by comprising the control device for an air conditioner according to claim 9.
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CN110553415A (en) * 2019-09-11 2019-12-10 广东美的制冷设备有限公司 Air conditioner, control method of air conditioner and storage medium
CN110849007A (en) * 2019-11-26 2020-02-28 宁波奥克斯电气股份有限公司 Automatic refrigerant quantity adjusting and controlling method and device and air conditioner
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CN111649445A (en) * 2020-04-24 2020-09-11 宁波奥克斯电气股份有限公司 Refrigerant adjusting system for air conditioner and air conditioner
CN111637580A (en) * 2020-04-28 2020-09-08 宁波奥克斯电气股份有限公司 Device and method for controlling refrigerating capacity of air conditioner and air conditioner

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CN113531933A (en) * 2021-07-05 2021-10-22 珠海格力电器股份有限公司 Refrigerant circulation quantity adjusting method and device and air conditioning system
CN114087842A (en) * 2021-10-11 2022-02-25 青岛澳柯玛冷链集成有限公司 Automatic temperature control method and system for realizing refrigeration and heating
CN114857752A (en) * 2022-03-31 2022-08-05 青岛海尔空调器有限总公司 Method and device for controlling air conditioner, air conditioner and storage medium

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