CN113932400A - Air conditioner and energy-saving control method - Google Patents

Air conditioner and energy-saving control method Download PDF

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Publication number
CN113932400A
CN113932400A CN202010671350.6A CN202010671350A CN113932400A CN 113932400 A CN113932400 A CN 113932400A CN 202010671350 A CN202010671350 A CN 202010671350A CN 113932400 A CN113932400 A CN 113932400A
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China
Prior art keywords
power consumption
air conditioner
preset
power
indoor
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CN202010671350.6A
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Chinese (zh)
Inventor
刘立闯
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Hisense Shandong Air Conditioning Co Ltd
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Hisense Shandong Air Conditioning Co Ltd
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Priority to CN202010671350.6A priority Critical patent/CN113932400A/en
Publication of CN113932400A publication Critical patent/CN113932400A/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
    • F24F11/62—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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • 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
    • F24F11/65—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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/50—Load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/60—Energy consumption
    • 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)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner and an energy-saving control method, which are applied to the air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve, an indoor environment temperature sensor, an indoor coil temperature sensor and a controller, by acquiring current parameter information of the air conditioner, the parameter information including power consumption and a continued operation time of the air conditioner, controlling the running state of the air conditioner according to a preset running mode, parameter information and preset parameter information, the preset parameter information includes a preset power consumption amount and a preset continuous operation time of the air conditioner, the preset operation mode is set based on the preset power consumption amount and the preset continuous operation time, therefore, the air conditioner can be automatically shut down according to the power consumption of the air conditioner, and the energy-saving efficiency and the user experience of the air conditioner are improved.

Description

Air conditioner and energy-saving control method
Technical Field
The application relates to the technical field of air conditioner energy conservation, in particular to an air conditioner and an energy-saving control method.
Background
Air conditioners are becoming more and more important in the existing society, and air conditioners are required to maintain conditions such as temperature or humidity of an indoor environment in hot summer, cold winter and other environments, and accordingly, control of energy consumption of air conditioners is becoming more and more important when the air conditioners are used.
The energy-saving control scheme that each trade company put forward in the industry generally lets the compressor in the air conditioner be in low frequency running state, but, when the compressor is in low frequency running state refrigeration or heating efficiency can reduce, will operate always when indoor ambient temperature does not reach the set temperature of air conditioner, and the air conditioner can't automatic shutdown, leads to power consumption to continuously increase, and can't be according to the more accurate energy-saving control who realizes the air conditioner of the condition of power consumption.
Therefore, how to automatically shut down the air conditioner according to the power consumption is a technical problem to be solved by those skilled in the art by controlling the power consumption of the air conditioner to further improve the energy saving efficiency and the user experience of the air conditioner.
Disclosure of Invention
The invention provides an air conditioner and an energy-saving control method, which are used for solving the technical problem of controlling the power consumption of the air conditioner by automatically shutting down the air conditioner according to the power consumption.
Some embodiments of the present invention provide an air conditioner, including:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
one of the outdoor heat exchanger and the indoor heat exchanger works for the condenser, and the other works for the evaporator;
the four-way valve is used for controlling the flow direction of the refrigerant in the refrigerant loop so as to switch the outdoor heat exchanger and the indoor heat exchanger between the condenser and the evaporator;
an indoor environment temperature sensor for detecting an indoor environment temperature;
the indoor coil temperature sensor is used for detecting the temperature of the indoor coil;
the controller is used for acquiring current parameter information of the air conditioner, wherein the parameter information comprises power consumption and the continuous operation time of the air conditioner;
controlling the running state of the air conditioner according to a preset running mode, the parameter information and preset parameter information, wherein the preset parameter information comprises preset power consumption and preset continuous running time of the air conditioner, and the preset running mode is set based on the preset power consumption and the preset continuous running time.
In the air conditioner provided in some embodiments of the present invention, the power consumption includes power consumption of an indoor unit, and the controller is specifically configured to:
and determining the power consumption of the indoor unit according to attribute information of the indoor unit, a first corresponding relation and the continuous operation time, wherein the attribute information is specifically electric heating power, indoor fan power and standby power of an operation circuit, and the first corresponding relation is the corresponding relation between the indoor fan and the indoor fan power at each level of wind speed.
In the air conditioner provided in some embodiments of the present invention, the controller is specifically configured to:
acquiring the electric heating power of the indoor unit and the standby power of the running circuit, and acquiring the power of the indoor fan at the current wind speed based on the first corresponding relation;
and determining the power consumption of the indoor unit based on the electric heating power, the power of the indoor fan, the standby power of the running circuit and the continuous running time.
In the air conditioner provided in the preferred embodiment of the present invention, the power consumption further includes outdoor unit power consumption, the outdoor unit power consumption includes outdoor fan power consumption and compressor driving power consumption, and the controller is specifically configured to:
determining the power consumption of the compressor drive according to the current and the voltage of the compressor drive and a power factor, wherein the power factor is the power factor when a PFC regulating circuit is started;
and determining the power consumption of the outdoor fan according to a second corresponding relationship and the continuous operation time, wherein the second corresponding relationship is the corresponding relationship between the outdoor fan and the power of the outdoor fan at each level of wind speed.
In the air conditioner provided in some embodiments of the present invention, the controller is specifically configured to:
adjusting the running current of the air conditioner and the fan wind speed of an indoor unit and an outdoor unit according to the preset power consumption and/or the preset continuous running time, and taking the adjusted running mode as the preset running mode of the air conditioner;
or, when the power consumption reaches the preset power consumption, and/or the continuous operation time reaches the preset continuous operation time, the air conditioner is closed.
Correspondingly, the embodiment of the invention also provides an energy-saving control method, which is applied to an air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve, an indoor environment temperature sensor, an indoor coil temperature sensor and a controller, and the method comprises the following steps:
acquiring current parameter information of the air conditioner, wherein the parameter information comprises power consumption and continuous operation time of the air conditioner;
controlling the running state of the air conditioner according to a preset running mode, the parameter information and preset parameter information, wherein the preset parameter information comprises preset power consumption and preset continuous running time of the air conditioner, and the preset running mode is set based on the preset power consumption and the preset continuous running time.
In some embodiments of the energy saving control methods provided in the present invention, the power consumption includes power consumption of an indoor unit, and acquiring the power consumption specifically includes:
and determining the power consumption of the indoor unit according to attribute information of the indoor unit, a first corresponding relation and the continuous operation time, wherein the attribute information is specifically electric heating power, indoor fan power and standby power of an operation circuit, and the first corresponding relation is the corresponding relation between the indoor fan and the indoor fan power at each level of wind speed.
In an energy saving control method provided in some embodiments of the present invention, determining power consumption of an indoor unit according to attribute information of the indoor unit, a first correspondence relationship, and the sustained operation time includes:
acquiring the electric heating power of the indoor unit and the standby power of the running circuit, and acquiring the power of the indoor fan at the current wind speed based on the first corresponding relation;
and determining the power consumption of the indoor unit based on the electric heating power, the power of the indoor fan, the standby power of the running circuit and the continuous running time.
In the energy saving control method provided in some embodiments of the present invention, the power consumption further includes outdoor unit power consumption, the outdoor unit power consumption includes outdoor fan power consumption and compressor driving power consumption, and the power consumption is acquired, and the method further includes:
determining the power consumption of the compressor drive according to the current and the voltage of the compressor drive and a power factor, wherein the power factor is the power factor when a PFC regulating circuit is started;
and determining the power consumption of the outdoor fan according to a second corresponding relationship and the continuous operation time, wherein the second corresponding relationship is the corresponding relationship between the outdoor fan and the power of the outdoor fan at each level of wind speed.
In the energy saving control method provided in some embodiments of the present invention, the controlling the operation state of the air conditioner according to a preset operation mode, the current parameter information, and preset parameter information specifically includes:
adjusting the running current of the air conditioner and the fan wind speed of an indoor unit and an outdoor unit according to the preset power consumption and/or the preset continuous running time, and taking the adjusted running mode as the preset running mode of the air conditioner;
or, when the power consumption reaches the preset power consumption, and/or the continuous operation time reaches the preset continuous operation time, the air conditioner is closed.
Compared with the prior art, the invention has the following technical effects:
through using above technical scheme, obtain the current parameter information of air conditioner, parameter information includes the continuous operation time of power consumption and air conditioner, according to presetting the run mode, parameter information and presetting the control of parameter information the running state of air conditioner, preset parameter information includes the power consumption of presetting of air conditioner with predetermine continuous operation time, predetermine the run mode and be based on predetermine power consumption with predetermine continuous operation time and set for, the air conditioner can carry out automatic shutdown according to the power consumption of self, or come the running state of nimble adjustment self according to predetermined power consumption and predetermined continuous operation time to reach the energy-conserving efficiency and the user experience of air conditioner.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a perspective view showing an external appearance of an air conditioner of an embodiment;
fig. 2 is a circuit diagram showing an outline of the structure of the air conditioner of the embodiment;
FIG. 3 is a schematic view showing the construction of an air conditioner in the preferred embodiment of the present application;
fig. 4 is a flowchart of an energy saving control method proposed in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As described in the background art, most energy-saving control schemes for air conditioners in the prior art are designed to allow a compressor to be in a low-frequency operation state, and if the indoor environment temperature does not reach the set temperature of the air conditioner, the air conditioner will operate all the time, which results in continuous increase of power consumption.
To solve the above problem, a preferred embodiment of the present invention provides an air conditioner, as shown in fig. 3, for how to turn off the air conditioner according to its own power consumption.
The application protects an air conditioner specifically does:
the refrigerant circulation circuit 301 circulates a refrigerant in a circuit including a compressor, a condenser, an expansion valve, an evaporator, a four-way valve, and a pressure reducer.
The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor 302 is configured to compress a low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas, and discharge the high-temperature and high-pressure refrigerant gas to the condenser.
In a preferred embodiment of the present application, the compressor compresses a refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
An outdoor heat exchanger and an indoor heat exchanger 303, one of which operates for the condenser and the other of which operates for the evaporator.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
A four-way valve 304 for controlling a flow direction of a refrigerant in the refrigerant circuit to switch between the outdoor heat exchanger and the indoor heat exchanger as the condenser and the evaporator;
the air conditioner 1 shown in fig. 1 includes: the indoor unit 3 is exemplified by an indoor unit (shown in the figure), and the indoor unit is usually mounted on an indoor wall surface WL or the like. For another example, an indoor cabinet (not shown) is also an indoor unit of the indoor unit.
The outdoor unit 2 is generally installed outdoors and used for heat exchange in an indoor environment. In the illustration of fig. 1, the outdoor unit 2 is indicated by a broken line because the outdoor unit 2 is located outdoors on the opposite side of the indoor unit 3 with respect to the wall surface WL.
Fig. 2 shows a circuit configuration of an air conditioner 1, and the air conditioner 1 includes a refrigerant circuit 10, and is capable of executing a vapor compression refrigeration cycle by circulating a refrigerant in the refrigerant circuit 10. The indoor unit 3 and the outdoor unit 2 are connected by a connecting pipe 4 to form a refrigerant circuit 10 in which a refrigerant circulates.
And an indoor ambient temperature sensor 305 for detecting and collecting the indoor ambient temperature.
And an indoor coil temperature sensor 306 for detecting and collecting the indoor coil temperature.
A controller 307 for acquiring current parameter information of the air conditioner, wherein the parameter information includes power consumption and a continued operation time of the air conditioner;
controlling the running state of the air conditioner according to a preset running mode, the parameter information and preset parameter information, wherein the preset parameter information comprises preset power consumption and preset continuous running time of the air conditioner, and the preset running mode is set based on the preset power consumption and the preset continuous running time.
Specifically, the parameter information of the air conditioner itself, that is, the power consumption of the air conditioner during the current operation and the running time of the air conditioner during the current operation, is obtained first, and then the running state of the air conditioner is controlled according to the preset running mode, the parameter information and the preset parameter information.
The preset parameter information refers to preset power consumption and preset duration time of the air conditioner, the preset power consumption and the preset duration time can be set by a user, the preset power consumption and the preset duration time can also be set when the air conditioner leaves a factory, and the preset operation mode is set according to the preset power consumption and the preset duration time.
In order to more accurately obtain the power consumption of the air conditioner, in a preferred embodiment of the present application, the power consumption includes the power consumption of an indoor unit, and the controller is specifically configured to:
and determining the power consumption of the indoor unit according to attribute information of the indoor unit, a first corresponding relation and the continuous operation time, wherein the attribute information is specifically electric heating power, indoor fan power and standby power of an operation circuit, and the first corresponding relation is the corresponding relation between the indoor fan and the indoor fan power at each level of wind speed.
Specifically, the power consumption includes the power consumption of the indoor unit, the power consumption of the indoor unit generally consists of electric heating power, indoor fan power and standby power of an operation circuit, the electric heating power and the standby power of the operation circuit are fixed and can be stored in the air conditioner when leaving a factory, or the electric heating power and the standby power of the operation circuit are networked to be inquired and determined on the internet according to the model of the air conditioner, the indoor fan power is also fixed under each level of wind speed, and a first corresponding relation of the indoor fan power of the indoor fan under each level of wind speed can be stored in the air conditioner in advance.
The method comprises the steps of firstly obtaining attribute information of an indoor unit, wherein the attribute information is electric heating power, indoor fan power and standby power of an operation circuit, the indoor fan power can be obtained in a first corresponding relation according to the current wind speed of an indoor fan, then the continuous operation time of the air conditioner in the current operation can be obtained through a timer in the air conditioner, and finally the power consumption of the indoor unit is determined according to the attribute information, the first corresponding relation and the continuous operation time.
In order to more accurately obtain the power consumption of the indoor unit, in a preferred embodiment of the present application, the controller is specifically configured to:
acquiring the electric heating power of the indoor unit and the standby power of the running circuit, and acquiring the power of the indoor fan at the current wind speed based on the first corresponding relation;
and determining the power consumption of the indoor unit based on the electric heating power, the power of the indoor fan, the standby power of the running circuit and the continuous running time.
Specifically, since the power consumption of one device is equal to the active power multiplied by the time, the power consumption of the indoor unit can be determined after the electric heating power, the power of the indoor fan, the standby power of the operation circuit and the corresponding sustained operation time are obtained.
In order to more accurately obtain the power consumption of the air conditioner, in a preferred embodiment of the present application, the power consumption further includes an outdoor unit power consumption, the outdoor unit power consumption includes an outdoor fan power consumption and a compressor driving power consumption, and the controller is specifically configured to:
determining the power consumption of the compressor drive according to the current and the voltage of the compressor drive and a power factor, wherein the power factor is the power factor when a PFC regulating circuit is started;
and determining the power consumption of the outdoor fan according to a second corresponding relationship and the continuous operation time, wherein the second corresponding relationship is the corresponding relationship between the outdoor fan and the power of the outdoor fan at each level of wind speed.
Specifically, the Power consumption further includes Power consumption of the outdoor unit, the Power consumption of the outdoor unit includes Power consumption of an outdoor fan and Power consumption of a compressor, the outdoor unit generally has a PFC (Power Factor Correction) adjusting circuit, when the PFC adjusting circuit is turned on and turned off, different Power factors are called, the Power factors may be derived by detecting voltage and current of the outdoor unit by a controller, or preset fixed values may be set when the PFC adjusting circuit is turned on or turned off.
The PFC adjusting circuit comprises a voltage sampling circuit and a current sampling circuit driven by the compressor, the voltage and the current driven by the compressor are obtained through sampling, the voltage and the current are multiplied by a power factor to determine active power driven by the compressor, and the active power is multiplied by the continuous operation time to determine the power consumption driven by the compressor.
The outdoor fan power of the outdoor fan at each level of wind speed is also fixed, the corresponding relation between the outdoor fan at each level of wind speed and the outdoor fan power is stored in the second corresponding relation, the outdoor fan power at the current wind speed can be determined through the second corresponding relation, and then the outdoor fan power at the current wind speed is multiplied by the continuous operation time to determine the power consumption of the outdoor fan.
In addition, a current detection circuit and a voltage detection circuit can be added on a zero-fire line leading a power line of the air conditioner to a controller, elements in the current detection circuit include but are not limited to a current transformer, a Hall element and a sampling resistor, then the complete machine power of the air conditioner is determined through the detected complete machine current and the detected complete machine voltage, the complete machine power is equal to the complete machine voltage multiplied by the complete machine current multiplied by a power factor, and finally the power consumption of the air conditioner is determined through the complete machine power multiplied by the continuous operation time of the air conditioner.
It should be noted that, the solutions of the above preferred embodiments are only specific implementations proposed in the present application, and determining the power consumption of the air conditioner according to other ways is within the scope of the present application.
In order to improve the efficiency of the air conditioner for performing automatic adjustment according to the power consumption, in a preferred embodiment of the present application, the controller is specifically configured to:
adjusting the running current of the air conditioner and the fan wind speed of an indoor unit and an outdoor unit according to the preset power consumption and/or the preset continuous running time, and taking the adjusted running mode as the preset running mode of the air conditioner;
or, when the power consumption reaches the preset power consumption, and/or the continuous operation time reaches the preset continuous operation time, the air conditioner is closed.
Specifically, after receiving the preset power consumption amount and/or the preset continuous operation time, the operation current of the air conditioner and the fan wind speed of the indoor and outdoor units may be adjusted according to the preset power consumption amount and/or the preset continuous operation time, for example, when the user sets a normal operation of the air conditioner, that is, the preset power consumption amount and the preset continuous time are not set, the air conditioner operates according to a normal state, when the user sets a medium energy saving mode, that is, the preset power consumption amount is 2/3 of the power consumption amount of the air conditioner in the normal operation state, the preset continuous time is not set, the operation current of the air conditioner is set to a designated threshold value, which is 2/3 of the operation current in the normal operation state, or a plurality of operation modes may be set by the user or shipped from the factory, when the user sets the maximum energy saving mode, that is, the preset power consumption amount is 1/2 of the power consumption amount of the air conditioner in the normal operation state, the preset continuous operation time is not set, and the air conditioner operation current is set to be the minimum specified threshold value.
When the maximum energy-saving mode is selected, and the operating current of the air conditioner is set to a minimum designated threshold, the set temperature or the target temperature of the air conditioner is adjusted to a preset temperature, such as 26 ℃ or 27 ℃, and meanwhile, the rotating speed of the indoor fan and the frequency of the outdoor compressor are adjusted to fixed values with the highest energy efficiency ratio, wherein the fixed values of the rotating speed of the indoor fan and the frequency of the outdoor compressor can be determined according to experiments when the air conditioner leaves a factory and are stored in an Eeprom (Electrically Erasable and Programmable read only memory) memory when the air conditioner leaves the factory, so that the purpose of saving energy maximally is achieved when the air conditioner keeps constant outlet air temperature and meets basic refrigeration requirements.
Or, the preset power consumption and the preset continuous operation time are set by a user, and the air conditioner is turned off when the power consumption of the air conditioner reaches the preset power consumption and/or the continuous operation time reaches the preset continuous operation time, and meanwhile, the operation state of the air conditioner can be a normal operation state, a medium energy-saving mode or a maximum energy-saving mode.
It should be noted that the above solution of the preferred embodiment is only a specific implementation solution proposed in the present application, and other ways of adjusting the operation state of the air conditioner according to the preset power consumption amount and/or the preset continuous operation time all belong to the protection scope of the present application.
Through using above technical scheme, obtain the current parameter information of air conditioner, parameter information includes the continuous operation time of power consumption and air conditioner, according to presetting the run mode, parameter information and presetting the control of parameter information the running state of air conditioner, preset parameter information includes the power consumption of presetting of air conditioner with predetermine continuous operation time, predetermine the run mode and be based on predetermine power consumption with predetermine continuous operation time and set for, the air conditioner can carry out automatic shutdown according to the power consumption of self, or come the running state of nimble adjustment self according to predetermined power consumption and predetermined continuous operation time to reach the energy-conserving efficiency and the user experience of air conditioner.
Corresponding to the air conditioner in the preferred embodiment of the present application, the present application further provides an energy saving control method, which is applied to an air conditioner including a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve, an indoor ambient temperature sensor, an indoor coil temperature sensor, and a controller, and the method includes:
step S401, obtaining current parameter information of the air conditioner, wherein the parameter information comprises power consumption and the continuous operation time of the air conditioner.
Specifically, the power consumption is the total power consumption of the air conditioner, and the sustained operation time is the time for which the air conditioner is operated at this time.
In order to obtain the power consumption more accurately, in this embodiment of the present application, the power consumption includes an indoor unit power consumption, and the obtaining of the power consumption specifically includes:
and determining the power consumption of the indoor unit according to attribute information of the indoor unit, a first corresponding relation and the continuous operation time, wherein the attribute information is specifically electric heating power, indoor fan power and standby power of an operation circuit, and the first corresponding relation is the corresponding relation between the indoor fan and the indoor fan power at each level of wind speed.
Specifically, the attribute information of the indoor unit comprises electric heating power, indoor fan power and standby power of an operation circuit, the power consumption of the indoor unit can be determined by obtaining the attribute information of the indoor unit, and the indoor fan power is a fixed value at each wind speed, so that the corresponding relation between the indoor fan and the indoor fan power at each wind speed can be stored into an Eeprom memory in the air conditioner as a first corresponding relation, and the Eeprom is a memory chip with no data loss after power failure.
In order to determine the power consumption of the indoor unit more accurately, in an embodiment of the present application, the determining the power consumption of the indoor unit according to the attribute information of the indoor unit, the first corresponding relationship, and the sustained operation time specifically includes:
acquiring the electric heating power of the indoor unit and the standby power of the running circuit, and acquiring the power of the indoor fan at the current wind speed based on the first corresponding relation;
and determining the power consumption of the indoor unit based on the electric heating power, the power of the indoor fan, the standby power of the running circuit and the continuous running time.
Specifically, since the power consumption of one device is equal to the active power multiplied by the time, the power consumption of the indoor unit can be determined after the electric heating power, the power of the indoor fan, the standby power of the operation circuit and the corresponding sustained operation time are obtained.
In order to determine the power consumption more accurately, in this embodiment of the present application, the power consumption further includes an outdoor unit power consumption, the outdoor unit power consumption includes an outdoor fan power consumption and a compressor driving power consumption, and the power consumption is obtained, further including:
determining the power consumption of the compressor drive according to the current and the voltage of the compressor drive and a power factor, wherein the power factor is the power factor when a PFC regulating circuit is started;
and determining the power consumption of the outdoor fan according to a second corresponding relationship and the continuous operation time, wherein the second corresponding relationship is the corresponding relationship between the outdoor fan and the power of the outdoor fan at each level of wind speed.
Specifically, the PFC circuit comprises a current sampling circuit and a voltage sampling circuit driven by a compressor, the current and the voltage driven by the compressor can be sampled in real time based on the two circuits, the active power driven by the compressor is determined by the current and the voltage driven by the compressor obtained by sampling and a power factor, and the power consumption driven by the compressor is determined by multiplying the active power and the continuous operation time.
Meanwhile, the power of the outdoor fan is fixed at each wind speed, the outdoor fan power at the current wind speed can be determined according to the corresponding relation between the outdoor fan power and the outdoor fan power at each wind speed, and the power consumption of the outdoor fan can be determined according to the outdoor fan power and the continuous operation time.
Step S402, controlling the running state of the air conditioner according to a preset running mode, the parameter information and preset parameter information, wherein the preset parameter information comprises preset power consumption and preset continuous running time of the air conditioner, and the preset running mode is set based on the preset power consumption and the preset continuous running time.
Specifically, the operation state of the air conditioner may be controlled by a preset operation mode, parameter information, and preset parameter information.
In order to improve the energy saving efficiency of the air conditioner, in a specific embodiment of the present application, the controlling the operation state of the air conditioner according to a preset operation mode, the current parameter information, and preset parameter information specifically includes:
adjusting the running current of the air conditioner and the fan wind speed of an indoor unit and an outdoor unit according to the preset power consumption and/or the preset continuous running time, and taking the adjusted running mode as the preset running mode of the air conditioner;
or, when the power consumption reaches the preset power consumption, and/or the continuous operation time reaches the preset continuous operation time, the air conditioner is closed.
Specifically, the air conditioner may be controlled according to different preset operation modes, for example, if the preset operation mode is a normal operation mode, the air conditioner performs operation in a normal operation state, if the preset operation mode is a medium energy saving mode, the operation current of the air conditioner is adjusted to 2/3 of the maximum operation current, and the wind speed of the indoor and outdoor fans is also adjusted to 2/3 of the maximum wind speed, where the adjustment setting values of the operation current and the wind speed of the indoor and outdoor fans may be set by a user, if the preset operation mode is the maximum energy saving mode, the operation current of the air conditioner is adjusted to 1/2 of the maximum operation current, and the wind speed of the indoor and outdoor fans is also adjusted to 1/2 of the maximum wind speed, where the adjustment of the operation current of the air conditioner may specifically be an adjustment of the operation current of the compressor or a PFC current.
In addition, the user can also carry out the setting of presetting power consumption and presetting duration time according to remote controller or App and display panel, when receiving preset power consumption andor presetting duration time and do not receive the preset operation mode, the air conditioner operates according to normal operating condition, when power consumption andor the duration time reach and preset power consumption andor preset duration time, the air conditioner is closed automatically.
Meanwhile, when the air conditioner receives preset power consumption and/or preset continuous operation time and receives a preset operation mode, whether the power consumption per se reaches the preset power consumption or not and/or whether the continuous operation time reaches the preset continuous operation time or not are judged in the preset operation mode, and if one or both of the preset power consumption and the preset operation mode reach the preset continuous operation time, the air conditioner is automatically turned off, and the air conditioner can also automatically judge which preset operation mode to operate according to the indoor environment.
By applying the technical scheme, the current parameter information of the air conditioner is obtained, the parameter information comprises the power consumption and the continuous operation time of the air conditioner, the operation state of the air conditioner is controlled according to a preset operation mode, the parameter information and the preset parameter information, the preset parameter information comprises the preset power consumption and the preset continuous operation time of the air conditioner, and the preset operation mode is set based on the preset power consumption and the preset continuous operation time.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by hardware, and also by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the implementation scenarios of the present application.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present application.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above application serial numbers are for description purposes only and do not represent the superiority or inferiority of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.

Claims (10)

1. An air conditioner, characterized in that the air conditioner comprises:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
one of the outdoor heat exchanger and the indoor heat exchanger works for the condenser, and the other works for the evaporator;
the four-way valve is used for controlling the flow direction of the refrigerant in the refrigerant loop so as to switch the outdoor heat exchanger and the indoor heat exchanger between the condenser and the evaporator;
an indoor environment temperature sensor for detecting an indoor environment temperature;
the indoor coil temperature sensor is used for detecting the temperature of the indoor coil;
the controller is used for acquiring current parameter information of the air conditioner, wherein the parameter information comprises power consumption and the continuous operation time of the air conditioner;
controlling the running state of the air conditioner according to a preset running mode, the parameter information and preset parameter information, wherein the preset parameter information comprises preset power consumption and preset continuous running time of the air conditioner, and the preset running mode is set based on the preset power consumption and the preset continuous running time.
2. The air conditioner of claim 1, wherein the power consumption includes indoor unit power consumption, and the controller is specifically configured to:
and determining the power consumption of the indoor unit according to attribute information of the indoor unit, a first corresponding relation and the continuous operation time, wherein the attribute information is specifically electric heating power, indoor fan power and standby power of an operation circuit, and the first corresponding relation is the corresponding relation between the indoor fan and the indoor fan power at each level of wind speed.
3. The air conditioner of claim 2, wherein the controller is specifically configured to:
acquiring the electric heating power of the indoor unit and the standby power of the running circuit, and acquiring the power of the indoor fan at the current wind speed based on the first corresponding relation;
and determining the power consumption of the indoor unit based on the electric heating power, the power of the indoor fan, the standby power of the running circuit and the continuous running time.
4. The air conditioner of claim 1, wherein the power consumption further comprises an outdoor unit power consumption, the outdoor unit power consumption comprises an outdoor fan power consumption and a compressor drive power consumption, and the controller is specifically configured to:
determining the power consumption of the compressor drive according to the current and the voltage of the compressor drive and a power factor, wherein the power factor is the power factor when a PFC regulating circuit is started;
and determining the power consumption of the outdoor fan according to a second corresponding relationship and the continuous operation time, wherein the second corresponding relationship is the corresponding relationship between the outdoor fan and the power of the outdoor fan at each level of wind speed.
5. The air conditioner of claim 1, wherein the controller is specifically configured to:
adjusting the running current of the air conditioner and the fan wind speed of an indoor unit and an outdoor unit according to the preset power consumption and/or the preset continuous running time, and taking the adjusted running mode as the preset running mode of the air conditioner;
or, when the power consumption reaches the preset power consumption, and/or the continuous operation time reaches the preset continuous operation time, the air conditioner is closed.
6. An energy-saving control method is characterized in that the method is applied to an air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve, an indoor environment temperature sensor, an indoor coil temperature sensor and a controller, and the method comprises the following steps:
acquiring current parameter information of the air conditioner, wherein the parameter information comprises power consumption and continuous operation time of the air conditioner;
controlling the running state of the air conditioner according to a preset running mode, the parameter information and preset parameter information, wherein the preset parameter information comprises preset power consumption and preset continuous running time of the air conditioner, and the preset running mode is set based on the preset power consumption and the preset continuous running time.
7. The method of claim 6, wherein the power consumption comprises indoor unit power consumption, and obtaining the power consumption comprises:
and determining the power consumption of the indoor unit according to attribute information of the indoor unit, a first corresponding relation and the continuous operation time, wherein the attribute information is specifically electric heating power, indoor fan power and standby power of an operation circuit, and the first corresponding relation is the corresponding relation between the indoor fan and the indoor fan power at each level of wind speed.
8. The method of claim 7, wherein determining the indoor unit power consumption according to the attribute information of the indoor unit, the first correspondence relationship, and the sustained operation time comprises:
acquiring the electric heating power of the indoor unit and the standby power of the running circuit, and acquiring the power of the indoor fan at the current wind speed based on the first corresponding relation;
and determining the power consumption of the indoor unit based on the electric heating power, the power of the indoor fan, the standby power of the running circuit and the continuous running time.
9. The method of claim 6, wherein the power consumption further comprises outdoor unit power consumption, the outdoor unit power consumption comprises outdoor fan power consumption and compressor driving power consumption, and the obtaining the power consumption further comprises:
determining the power consumption of the compressor drive according to the current and the voltage of the compressor drive and a power factor, wherein the power factor is the power factor when a PFC regulating circuit is started;
and determining the power consumption of the outdoor fan according to a second corresponding relationship and the continuous operation time, wherein the second corresponding relationship is the corresponding relationship between the outdoor fan and the power of the outdoor fan at each level of wind speed.
10. The method according to claim 6, wherein the controlling the operation state of the air conditioner according to the preset operation mode, the current parameter information, and the preset parameter information specifically comprises:
adjusting the running current of the air conditioner and the fan wind speed of an indoor unit and an outdoor unit according to the preset power consumption and/or the preset continuous running time, and taking the adjusted running mode as the preset running mode of the air conditioner;
or, when the power consumption reaches the preset power consumption, and/or the continuous operation time reaches the preset continuous operation time, the air conditioner is closed.
CN202010671350.6A 2020-07-13 2020-07-13 Air conditioner and energy-saving control method Pending CN113932400A (en)

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Application publication date: 20220114