CN111271796A - Air conditioner and defrosting control method and device thereof - Google Patents

Air conditioner and defrosting control method and device thereof Download PDF

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Publication number
CN111271796A
CN111271796A CN202010221719.3A CN202010221719A CN111271796A CN 111271796 A CN111271796 A CN 111271796A CN 202010221719 A CN202010221719 A CN 202010221719A CN 111271796 A CN111271796 A CN 111271796A
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China
Prior art keywords
heat
condenser
storage device
compressor
heat exchange
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CN202010221719.3A
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Chinese (zh)
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CN111271796B (en
Inventor
胡洪昊
颜景旭
袁前
孙瑞松
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Priority to CN202010221719.3A priority Critical patent/CN111271796B/en
Publication of CN111271796A publication Critical patent/CN111271796A/en
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Publication of CN111271796B publication Critical patent/CN111271796B/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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • 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
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F25B2347/02—Details of defrosting cycles
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The embodiment of the invention provides an air conditioner and a defrosting control method and device thereof, and relates to the technical field of air conditioners. The air conditioner comprises an evaporator, a compressor and a condenser, wherein the evaporator is connected with the compressor, the compressor is connected with the condenser, the air conditioner also comprises a heat storage device, and the heat storage device is connected with at least one of the evaporator, the compressor and the condenser through a pipeline and is used for exchanging heat with at least one of the evaporator, the compressor and the condenser through a liquid medium; be provided with first electric heating member on the heat accumulation device, first electric heating member is used for the heat accumulation device energy storage. The air conditioner and the defrosting control method and device thereof can realize effective utilization of heat and achieve the effect of saving energy.

Description

Air conditioner and defrosting control method and device thereof
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a defrosting control method and device thereof.
Background
The existing air conditioner has low heat utilization rate of each part and has energy waste to a certain extent.
Disclosure of Invention
The invention solves the problem that the prior air conditioner has low heat utilization rate.
In order to solve the above problems, embodiments provide an air conditioner and a defrosting control method and device thereof.
In a first aspect, an embodiment provides an air conditioner, including an evaporator, a compressor, and a condenser, where the evaporator is connected to the compressor, and the compressor is connected to the condenser, and the air conditioner further includes a heat storage device, where the heat storage device is connected to at least one of the evaporator, the compressor, and the condenser through a pipe, and is configured to exchange heat with at least one of the evaporator, the compressor, and the condenser through a liquid medium.
The air conditioner provided by the embodiment of the invention comprises: the heat storage device can exchange heat with at least one of the evaporator, the compressor and the condenser, and when the heat storage device exchanges heat with the evaporator, if the temperature of the heat storage device is higher than the temperature required by heating of the evaporator, the heat in the heat storage device can be transferred to the evaporator to supplement the energy required by heating for a user; if the temperature of the heat storage device is lower than the temperature required by heating, part of condensation heat released by the evaporator can be transferred to the heat storage device for storage. When the heat storage device exchanges heat with the compressor, the waste heat generated by the compressor can be stored in the heat storage device, so that the waste heat of the compressor is fully utilized, and the heat storage device and the compressor exchange heat can enable the compressor to dissipate heat in time, so that the service life of the compressor is prolonged. When heat accumulation device and condenser heat transfer, heat transfer to condenser of heat accumulation device can be used for the condenser defrosting, accomplishes the defrosting of not shutting down, saves the running cost to improve user experience. The air conditioner provided by the embodiment of the invention can realize effective utilization of heat and has the effect of saving energy.
In an optional embodiment, a first electric heating element is arranged on the heat storage device, and the first electric heating element is connected with the heat exchange component and used for storing energy for the heat storage device.
In an alternative embodiment, the heat storage device is provided with a heat exchange component, and the heat exchange component is connected with at least one of the evaporator, the compressor and the condenser through a pipeline and used for enabling the heat storage device to exchange heat with at least one of the evaporator, the compressor and the condenser.
In an optional embodiment, the heat exchange component includes a first heat exchange component, a first heat exchange piece is arranged on the evaporator, the first heat exchange component is connected with the first heat exchange piece through a pipeline, and the first heat exchange component and the first heat exchange piece can exchange heat with each other.
In an optional embodiment, a first valve is disposed on a pipe between the first heat exchange component and the first heat exchange member, and the first valve is used to control the pipe between the first heat exchange component and the first heat exchange member to be turned on or off.
In an optional embodiment, the heat exchange component further includes a second heat exchange component, a second heat exchange piece is arranged on the compressor, the second heat exchange component is connected with the second heat exchange piece through a pipeline, and the second heat exchange component can exchange heat with the second heat exchange piece.
In an alternative embodiment, a second valve is arranged on a pipeline between the second heat exchange part and the second heat exchange member, and the second valve is used for controlling the pipeline between the second heat exchange part and the second heat exchange member to be switched on or switched off.
In an optional embodiment, the heat exchange component further includes a third heat exchange component, a third heat exchange piece is arranged on the condenser, the third heat exchange component is connected with the third heat exchange piece through a pipeline, and the third heat exchange component can exchange heat with the third heat exchange piece.
In an alternative embodiment, a third valve is arranged on a pipeline between the third heat exchange part and the third heat exchange part, and the third valve is used for controlling the pipeline between the third heat exchange part and the third heat exchange part to be switched on or switched off.
In an alternative embodiment, the condenser is further provided with a second electric heating element for defrosting the condenser by heating.
In an optional embodiment, the evaporator is provided with a first heat exchange member, the condenser is provided with a third heat exchange member, the first heat exchange member is connected with the third heat exchange member through a pipeline, and the pipeline is used for heat exchange between the first heat exchange member and the third heat exchange member.
In an optional embodiment, a fourth valve is disposed on a pipe between the first heat exchange element and the third heat exchange element, and the fourth valve is used for controlling the pipe between the first heat exchange element and the third heat exchange element to be switched on or off.
In an optional embodiment, the condenser is provided with a third heat exchange member, the compressor is provided with a second heat exchange member, the second heat exchange member is connected with the third heat exchange member through a pipeline, and the pipeline is used for heat exchange between the second heat exchange member and the third heat exchange member.
In an optional embodiment, a fifth valve is disposed on a pipe between the second heat exchange element and the third heat exchange element, and the fifth valve is used for controlling the pipe between the second heat exchange element and the third heat exchange element to be switched on or off.
In a second aspect, an embodiment provides an air conditioner defrosting control method, which is used for an air conditioner, wherein the air conditioner comprises an evaporator, a compressor, a condenser and a heat storage device, the evaporator is connected with the compressor, the compressor is connected with the condenser, and the heat storage device is connected with the condenser through a pipeline and exchanges heat with the condenser; the method comprises the following steps: judging whether the condenser needs defrosting or not; and if the condenser needs defrosting, controlling the heat storage device to defrost the condenser.
In an alternative embodiment, the step of controlling the thermal storage device to defrost the condenser comprises: judging whether the temperature of the heat storage device is higher than the defrosting temperature of the condenser or not; and if the temperature of the heat storage device is higher than the defrosting temperature of the condenser, controlling the conduction of a pipeline between the heat storage device and the condenser so as to defrost the condenser.
In an alternative embodiment, the heat storage device is connected to the housing of the compressor through a pipe and is capable of exchanging heat with the housing of the compressor, and the method further includes: judging whether the shell temperature of the compressor is higher than the temperature of the heat storage device or not; and if the temperature of the shell of the compressor is higher than the temperature of the heat storage device, controlling the conduction of a pipeline between the compressor and the heat storage device so as to store heat for the heat storage device through the heat of the shell of the compressor.
In an alternative embodiment, the heat storage device is connected to the evaporator through a pipeline and is capable of exchanging heat with the evaporator, and the method further comprises: judging whether the temperature required by heating of the evaporator is greater than the temperature of the heat storage device or not; and if the temperature required by heating of the evaporator is higher than the temperature of the heat storage device, controlling the conduction of a pipeline between the evaporator and the heat storage device so as to store heat for the heat storage device through the evaporator.
In an alternative embodiment, the method further comprises: judging whether the current time period is in a valley power interval of the peak-valley power price time interval; and if the current time period is in a valley electricity interval of the peak-valley electricity price time interval, storing heat of the heat storage device through the commercial power.
The embodiment of the invention provides an air conditioner defrosting control method, which comprises the following steps: when the condenser needs defrosting, the condenser is defrosted through the heat storage device, the heat stored by the heat storage device can be from multiple sources, the energy can be saved, and the heat utilization rate is improved.
In a third aspect, an embodiment provides an air conditioner defrosting control device, which is used for an air conditioner, wherein the air conditioner comprises an evaporator, a compressor, a condenser and a heat storage device, the evaporator is connected with the compressor, the compressor is connected with the condenser, and the heat storage device is connected with the condenser through a pipeline and exchanges heat with the condenser; the device comprises: a judging module: the defrosting control device is used for judging whether the condenser needs defrosting or not; a control module: and the controller is used for controlling the heat storage device to defrost the condenser if the condenser needs defrosting.
In an alternative embodiment, the control module is further configured to: judging whether the temperature of the heat storage device is higher than the defrosting temperature of the condenser or not; and if the temperature of the heat storage device is higher than the defrosting temperature of the condenser, controlling the conduction of a pipeline between the heat storage device and the condenser so as to defrost the condenser.
In an alternative embodiment, the heat storage device is connected to the casing of the compressor through a pipeline and can exchange heat with the casing of the compressor, and the control module is further configured to: judging whether the shell temperature of the compressor is higher than the temperature of the heat storage device or not; and if the temperature of the shell of the compressor is higher than the temperature of the heat storage device, controlling the conduction of a pipeline between the compressor and the heat storage device so as to store heat for the heat storage device through the heat of the shell of the compressor.
In an optional embodiment, the heat storage device is connected to the evaporator through a pipeline and is capable of exchanging heat with the evaporator, and the control module is further configured to: judging whether the temperature required by heating of the evaporator is greater than the temperature of the heat storage device or not; and if the temperature required by heating of the evaporator is higher than the temperature of the heat storage device, controlling the conduction of a pipeline between the evaporator and the heat storage device so as to store heat for the heat storage device through the evaporator.
In an alternative embodiment, the control module is further configured to: judging whether the current time period is in a valley power interval of the peak-valley power price time interval; and if the current time period is in a valley electricity interval of the peak-valley electricity price time interval, storing heat of the heat storage device through the commercial power.
The defrosting control device of the air conditioner provided by the embodiment of the invention comprises the following components: when the condenser needs defrosting, the condenser is defrosted through the heat storage device, the heat stored by the heat storage device can be from multiple sources, the energy can be saved, and the heat utilization rate is improved.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the heat storage device of FIG. 1 in heat exchange relationship with an evaporator;
FIG. 3 is a schematic view of the heat storage device of FIG. 1 in heat exchange relationship with a compressor;
FIG. 4 is a schematic diagram of the heat storage device of FIG. 1 in heat exchange relationship with a condenser;
FIG. 5 is a schematic diagram of the heat exchange between the condenser and the evaporator in FIG. 1;
FIG. 6 is a schematic diagram of the heat exchange configuration of the condenser and compressor of FIG. 1;
FIG. 7 is a schematic structural view of the thermal storage device of FIG. 1;
FIG. 8 is a block flow diagram illustrating a defrosting control method for an air conditioner according to an embodiment of the present invention;
FIG. 9 is a block diagram illustrating a flow of substeps of step S200 of FIG. 8;
FIG. 10 is a block diagram illustrating a flowchart of steps S300 and S400 according to an embodiment of the present invention;
fig. 11 is a schematic block diagram of the flow of step S500 and step S600 provided in the embodiment of the present invention;
fig. 12 is a schematic block diagram of the flow of step S700 and step S800 according to the embodiment of the present invention;
fig. 13 is a block diagram schematically illustrating a structure of a defrosting control device for an air conditioner according to an embodiment of the present invention.
Icon: 100-an air conditioner; 11-an evaporator; 11 a-a first heat exchange member; 11 b-a first valve; 11 c-a fourth valve; 12-a compressor; 12 a-a second heat exchange element; 12 b-a second valve; 12 c-a fifth valve; 13-a condenser; 13 a-a third heat exchange element; 13 b-a third valve; 13 c-a second electric heating element; 13 d-a second switch; 14-a thermal storage device; 14 a-a first electric heating element; 14 b-a first heat exchange member; 14 c-a second heat exchange member; 14 d-a third heat exchange member; 14 e-a first switch; 15-air conditioner defrosting control device; 15 a-a judging module; 15 b-control module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, an air conditioner 100 according to an embodiment of the present invention is shown. The air conditioner 100 includes an evaporator 11, a compressor 12, a condenser 13, and a heat storage device 14. The evaporator 11 is connected with the compressor 12, the compressor 12 is connected with the condenser 13, and the heat storage device 14 is connected with at least one of the evaporator 11, the compressor 12 and the condenser 13 through a pipeline and used for exchanging heat with at least one of the evaporator 11, the compressor 12 and the condenser 13 through a liquid medium. The liquid medium can flow in the above-described pipes, thereby achieving heat exchange between the thermal storage device 14 and at least one of the evaporator 11, the compressor 12, and the condenser 13.
In the embodiment of the present invention, the thermal storage device 14 can exchange heat with at least one of the evaporator 11, the compressor 12, and the condenser 13, so that the heat is effectively utilized and the energy is saved. Referring to fig. 2, when the heat storage device 14 exchanges heat with the evaporator 11, if the temperature of the heat storage device 14 is higher than the temperature required by the evaporator 11 for heating, the heat in the heat storage device 14 can be transferred to the evaporator 11 to supplement the energy required by heating for the user; if the temperature of the thermal storage device 14 is lower than the temperature required for heating, part of the condensation heat released from the evaporator 11 can be transferred to the thermal storage device 14 for storage. Referring to fig. 3, when the heat storage device 14 exchanges heat with the compressor 12, the waste heat generated by the compressor 12 can be stored in the heat storage device 14 to fully utilize the waste heat of the compressor 12, and the heat storage device 14 exchanges heat with the compressor 12 to dissipate heat of the compressor 12 in time, so as to prolong the service life of the compressor 12. Referring to fig. 4, when the heat storage device 14 exchanges heat with the condenser 13, the heat of the heat storage device 14 is transferred to the condenser 13, which can be used for defrosting the condenser 13, so that defrosting is not stopped, the operation cost is saved, and the user experience is improved.
Meanwhile, it should be noted that the heat in the heat storage device 14 may be derived from heat exchange with at least one of the evaporator 11, the compressor 12, and the condenser 13, the heat storage device 14 may be heated and stored by an external heating member, or the heat storage device 14 may be provided with a heating member. When the heating part is used for storing energy, a peak-valley electricity policy can be utilized, namely the heating part can store energy for the heat storage device 14 at night, and the energy stored by the heat storage device 14 is used for heat exchange in the daytime, such as defrosting of the condenser 13, so that the purposes of economy and energy conservation are achieved. In addition, when the heat storage device 14 exchanges heat with three or any two of the evaporator 11, the compressor 12 and the condenser 13, the heat of the heat storage device 14 can also come from the compressor 12 or the evaporator 11, so that the heat among the components in the air conditioner 100 can be recycled, the heat can be utilized to a greater extent, and the purpose of saving energy is achieved.
Alternatively, the heat storage material of the heat storage device 14 may be a phase change material or the like.
In an alternative embodiment, the heat storage device 14 may be provided with a first electric heating element 14a, and the first electric heating element 14a is used for storing energy in the heat storage device 14, so that the heat stored in the heat storage device 14 exchanges heat with at least one of the evaporator 11, the compressor 12 and the condenser 13 through the liquid medium in the pipeline. Alternatively, the first electric heating element 14a may be a resistance wire.
That is, in this embodiment, the heat storage device 14 can store energy by heating with the first electric heating members 14a and can transfer heat to the condenser 13 or the evaporator 11 while exchanging heat with the condenser 13 or the evaporator 11. The heat storage device 14 is electrically heated to store energy, so that the heat storage device 14 can transfer heat to the evaporator 11 or the condenser 13 when necessary, and can be used to defrost the condenser 13 when transferring heat to the condenser 13, and can supplement heat required for heating when transferring heat to the evaporator 11, thereby exerting the effect of the heat storage device 14 to a greater extent.
It should be noted that, in this embodiment, the first electric heating element 14a may utilize a peak-to-valley electricity policy, and heat the heat storage device 14 to store energy during the night off-valley electricity period, and the heat energy stored in the heat storage device 14 is transferred to the condenser 13 or the evaporator 11, so as to utilize the peak-to-valley electricity policy, and save the use cost of the air conditioner 100 for the user.
Further, a heat exchange member (not shown) may be disposed on the heat storage device 14, and the heat exchange member is connected to at least one of the evaporator 11, the compressor 12 and the condenser 13 through a pipe, so as to enable the heat storage device 14 to exchange heat with at least one of the evaporator 11, the compressor 12 and the condenser 13. That is, the heat energy of the thermal storage device 14 can be heat-exchanged with the evaporator 11, the compressor 12, and the condenser 13 by the heat exchanging means.
Referring to fig. 2, in an alternative embodiment, the heat exchange component may include a first heat exchange component 14b, the evaporator 11 is provided with a first heat exchange element 11a, the first heat exchange component 14b is connected to the first heat exchange element 11a through a pipe, and the first heat exchange component 14b and the first heat exchange element 11a can exchange heat with each other.
It should be noted that, when the first heat exchange member 14b exchanges heat with the first heat exchange element 11a, at least two situations can be provided: firstly, if the temperature of the heat storage device 14 is higher than the temperature required for heating, in the process of heat exchange between the first heat exchange part 14b and the first heat exchange part 11a, the heat of the heat storage device 14 is transferred to the first heat exchange part 11a through the first heat exchange part 14b and reaches the evaporator 11 to supplement the heat required for heating, so that the heating effect is improved; secondly, if the temperature of the heat storage device 14 is lower than the temperature required for heating, part of the condensation heat released from the evaporator 11 is transferred to the first heat exchange member 14b through the first heat exchange member 11a, and the heat is stored in the heat storage device 14, thereby utilizing the condensation heat released from the evaporator 11.
Further, a first valve 11b may be disposed on the pipe between the first heat exchange part 14b and the first heat exchange element 11a, and the first valve 11b is used for controlling the pipe between the first heat exchange part 14b and the first heat exchange element 11a to be opened or closed.
It should be understood that when the first valve 11b controls the conduction of the pipe between the first heat exchanging part 14b and the first heat exchanging element 11a, the heat exchange between the first heat exchanging part 14b and the first heat exchanging element 11a is performed, so that the heat exchange between the heat storage device 14 and the evaporator 11 is realized; when the first valve 11b controls the pipeline between the first heat exchange part 14b and the first heat exchange element 11a to be closed, the liquid medium in the pipeline does not flow, and the first heat exchange part 14b and the first heat exchange element 11a do not exchange heat. The heat exchange process between the thermal storage device 14 and the evaporator 11 can be conveniently controlled by the first valve 11 b.
Referring to fig. 3, in an alternative embodiment, the heat exchanging component may include a second heat exchanging component 14c, a second heat exchanging element 12a is disposed on the compressor 12, the second heat exchanging component 14c is connected to the second heat exchanging element 12a through a pipe, and the second heat exchanging component 14c can exchange heat with the second heat exchanging element 12 a.
Alternatively, the second heat exchanging element 12a is provided on the casing of the compressor 12 so as to guide the heat of the compressor 12 to the second heat exchanging element 12a and transfer the heat to the heat storage device 14 by heat exchange of the second heat exchanging element 12a with the second heat exchanging part 14 c.
It should be noted that, when the temperature of the heat storage device 14 is lower than the temperature of the shell of the compressor 12, the heat on the compressor 12 can be transferred to the heat storage device 14 through the liquid medium by the second heat exchanging element 12a and the second heat exchanging element 14c, so as to store heat by the heat storage device 14, and the heat can be used for defrosting the condenser 13 or supplementing heat to the evaporator 11.
Further, a second valve 12b may be disposed on a pipe between the second heat exchange part 14c and the second heat exchange element 12a, and the second valve 12b is used for controlling the pipe between the second heat exchange part 14c and the second heat exchange element 12a to be opened or closed.
It should be understood that when the second valve 12b controls the conduction of the pipe between the second heat exchanging part 14c and the second heat exchanging part 12a, the heat exchange between the second heat exchanging part 14c and the second heat exchanging part 12a is performed, so that the heat exchange between the heat storage device 14 and the compressor 12 is realized, that is, the heat on the compressor 12 is transferred to the heat storage device 14; when the second valve 12b controls the pipe between the second heat exchange part 14c and the second heat exchange element 12a to be closed, the liquid medium in the pipe does not flow, and the second heat exchange part 14c and the second heat exchange element 12a do not exchange heat. The flow of the liquid medium in the pipe can be conveniently controlled by the second valve 12b to conduct the heat of the compressor 12 to the thermal storage device 14 when the temperature of the compressor 12 is higher than the temperature of the thermal storage device 14.
Referring to fig. 4, in an alternative embodiment, the heat exchange component may include a third heat exchange component 14d, the condenser 13 is provided with a third heat exchange element 13a, the third heat exchange component 14d and the third heat exchange element 13a are connected through a pipeline, and the third heat exchange component 14d can exchange heat with the third heat exchange element 13 a.
In the embodiment of the present invention, the heat exchange between the third heat exchange member 14d and the third heat exchange element 13a means that the third heat exchange member 14d transfers heat to the third heat exchange element 13a and acts on the condenser 13 to defrost the condenser 13.
Further, a third valve 13b may be disposed on a conduit between the third heat exchanging element 14d and the third heat exchanging element 13a, and the third valve 13b is used for controlling the conduit between the third heat exchanging element 14d and the third heat exchanging element 13a to be opened or closed.
It should be understood that, when the third valve 13b controls the conduction of the pipeline between the third heat exchanging part 14d and the third heat exchanging part 13a, heat is exchanged between the third heat exchanging part 14d and the third heat exchanging part 13a, that is, heat on the heat storage device 14 is transferred to the condenser 13, and the condenser 13 is defrosted; when the third valve 13b controls the closing of the pipe between the third heat exchanging element 14d and the third heat exchanging element 13a, the liquid medium in the pipe does not flow, and the third heat exchanging element 14d and the third heat exchanging element 13a do not exchange heat, that is, the heat storage device 14 does not defrost the condenser 13. The flow of the liquid medium in the pipe can be easily controlled by the third valve 13b to defrost by the heat of the heat storage device 14 when the condenser 13 needs defrosting.
Optionally, the condenser 13 may further be provided with a second electric heating element 13c, and the second electric heating element 13c is used for heating and defrosting the condenser 13, so that the condenser 13 is directly heated and defrosted by the second electric heating element 13c when the frosting condition is bad and the heat storage device 14 is at a low temperature and cannot provide defrosting heat. Alternatively, the second electric heating member 13c may be a resistance wire.
Referring to fig. 5, in an alternative embodiment, the evaporator 11 may be provided with a first heat exchange member 11a, the condenser 13 may be provided with a third heat exchange member 13a, and the first heat exchange member 11a may be connected with the third heat exchange member 13a through a pipe for heat exchange between the first heat exchange member 11a and the third heat exchange member 13 a. That is, the defrosting of the condenser 13 can be achieved by the heat exchange between the first heat exchanger 11a and the third heat exchanger 13 a.
Further, a fourth valve 11c may be disposed in a pipe between the first heat exchanging element 11a and the third heat exchanging element 13a, and the fourth valve 11c is used for controlling the pipe between the first heat exchanging element 11a and the third heat exchanging element 13a to be opened or closed.
It should be understood that when the fourth valve 11c controls the conduction of the pipeline between the first heat exchange member 11a and the third heat exchange member 13a, the heat exchange between the first heat exchange member 11a and the third heat exchange member 13a is performed, that is, the heat on the evaporator 11 is transferred to the condenser 13, and the condenser 13 is defrosted; when the fourth valve 11c controls the pipeline between the first heat exchange member 11a and the third heat exchange member 13a to be closed, the liquid medium in the pipeline does not flow, and the first heat exchange member 11a and the third heat exchange member 13a do not exchange heat, that is, the evaporator 11 does not defrost the condenser 13. The flow of the liquid medium in the pipe can be conveniently controlled by the fourth valve 11c to defrost by the heat of the evaporator 11 when the condenser 13 needs defrosting.
Referring to fig. 6, in an alternative embodiment, the condenser 13 is provided with a third heat exchanging element 13a, the compressor 12 is provided with a second heat exchanging element 12a, the second heat exchanging element 12a is connected to the third heat exchanging element 13a through a pipeline, and the pipeline is used for heat exchange between the second heat exchanging element 12a and the third heat exchanging element 13a, that is, heat exchange between the second heat exchanging element 12a and the third heat exchanging element 13a can be performed, so that defrosting of the condenser 13 is realized.
Further, a fifth valve 12c may be disposed in a pipe between the second heat exchanging element 12a and the third heat exchanging element 13a, and the fifth valve 12c is used for controlling the pipe between the second heat exchanging element 12a and the third heat exchanging element 13a to be opened or closed.
It should be understood that when the fifth valve 12c controls the conduction of the pipeline between the second heat exchanging element 12a and the third heat exchanging element 13a, the heat exchange between the second heat exchanging element 12a and the third heat exchanging element 13a is performed, that is, the heat on the compressor 12 is transferred to the condenser 13, and the condenser 13 is defrosted; when the fifth valve 12c controls the pipeline between the second heat exchanging element 12a and the third heat exchanging element 13a to be closed, the liquid medium in the pipeline does not flow, and the second heat exchanging element 12a and the third heat exchanging element 13a do not exchange heat, that is, the compressor 12 does not defrost the condenser 13. The flow of the liquid medium in the pipe can be conveniently controlled by the fifth valve 12c to defrost by the heat of the compressor 12 when the condenser 13 needs defrosting.
Referring to fig. 7, optionally, in some embodiments, the heat exchange components may include a first heat exchange component 14b, a second heat exchange component 14c and a third heat exchange component 14d, in which case, the evaporator 11 is provided with a first heat exchange element 11a, the compressor 12 is provided with a second heat exchange element 12a, and the condenser 13 is provided with a third heat exchange element 13 a.
The first heat exchange part 14b is connected with the first heat exchange element 11a through a pipeline, and the first heat exchange part 14b can exchange heat with the liquid medium flowing in the pipeline through the first heat exchange element 11 a; the second heat exchange part 14c is connected with the second heat exchange element 12a through a pipe, and the second heat exchange part 14c can exchange heat with the second heat exchange element 12a through a liquid medium flowing in the pipe; the third heat exchanging member 14d is connected to the third heat exchanging element 13a through a pipe, and the third heat exchanging member 14d can exchange heat with the liquid medium flowing through the pipe through the third heat exchanging element 13 a.
The first heat exchange component 14b, the second heat exchange component 14c and the third heat exchange component 14d may be three separate structures, or the first heat exchange component 14b, the second heat exchange component 14c and the third heat exchange component 14d may be one heat exchanger, and the one heat exchanger exchanges heat with the first heat exchange element 11a, the second heat exchange element 12a and the third heat exchange element 13a respectively. It should also be understood that the first heat exchange part 14b, the second heat exchange part 14c and the third heat exchange part 14d are a heat exchanger, which means that the liquid media in the three heat exchangers can flow mutually, i.e. the pipelines of the three are communicated with each other. In addition, any two of the first heat exchange member 14b, the second heat exchange member 14c and the third heat exchange member 14d may be communicated with each other, and the specific structures of the first heat exchange member 14b, the second heat exchange member 14c and the third heat exchange member 14d are not limited in the embodiment of the present invention.
Further, a first valve 11b is arranged on the pipeline between the first heat exchange part 14b and the first heat exchange element 11a, and the first valve 11b is used for controlling whether the liquid medium in the pipeline flows or not, i.e. controlling the pipeline to be opened or closed; a second valve 12b is arranged on a pipeline between the second heat exchange part 14c and the second heat exchange element 12a, and the second valve 12b is used for controlling whether heat exchange is carried out between the second heat exchange part 14c and the second heat exchange element 12a or not; a third valve 13b is provided between the third heat exchanging part 14d and the third heat exchanging element 13a, and the third valve 13b is used for controlling whether heat exchange is performed between the third heat exchanging part 14d and the third heat exchanging element 13 a. That is, the first valve 11b, the second valve 12b, and the third valve 13b are provided on the pipeline at the same time.
Meanwhile, the third heat exchange element 13a and the first heat exchange element 11a can be connected with the compressor 12 through a pipeline, a fourth valve 11c for controlling the opening or closing of the pipeline is arranged on the pipeline between the third heat exchange element 13a and the first heat exchange element 11a, and a fifth valve 12c for controlling the opening or closing of the pipeline is arranged on the pipeline between the condenser 13 and the second heat exchange element 12 a.
In addition, a first switch 14e for controlling whether the first electric heating member 14a is electrically connected and a second switch 13d for controlling whether the second electric heating member 13c is turned on may be further provided so as to effectively control the above-mentioned two electric heating members. Of course, the operating states of the heating elements of the heat storage device 14 and the heating elements of the condenser 13 may also be controlled by the controller.
Referring to fig. 2 to fig. 7, in this embodiment, the air conditioner 100 may have at least the following operation modes:
the first mode is as follows: at the time of the off-peak electricity price period at night, the first switch 14e controlling the first electric heating member 14a is turned on, and the first valve 11b, the second valve 12b, the third valve 13b, the fourth valve 11c, and the fifth valve 12c are turned off, and the second switch 13d is turned off, to charge the heat storage device 14 with energy through the first electric heating member 14 a. In this mode, the first electric heating member 14a is turned on at a low electricity price at night and stores heat in the heat storage device 14, which is advantageous for rational utilization of energy.
And a second mode: when the condenser 13 is frosted during the peak daytime electricity price period, the third valve 13b is opened, the first valve 11b, the second valve 12b, the fourth valve 11c and the fifth valve 12c are closed, and the first switch 14e and the second switch 13d are closed, so that the energy stored in the heat storage device 14 is transferred to the condenser 13 through the third heat exchange part 14d and the third heat exchange part 13a to defrost the condenser 13. In this mode, the heat stored through the mode one can be transferred through the third heat exchange member 14d and the third heat exchange member 13a, and the defrosting of the condenser 13 is achieved.
And a third mode: the first valve 11b is opened, the second valve 12b, the third valve 13b, the fourth valve 11c, and the fifth valve 12c are closed, and the first switch 14e and the second switch 13d are closed. When the temperature of the thermal storage device 14 is higher than the temperature required for heating, the heat in the thermal storage device 14 can be transferred to the evaporator 11 through the first heat exchange member 14b and the first heat exchange member 11a to supplement the heat required for heating to the user; when the temperature of the heat storage device 14 is lower than the temperature required for heating, part of the condensation heat released by the evaporator 11 can be circulated through the heat exchanger flow path connecting the heat storage device 14 and the evaporator 11, and is transferred to the heat storage device 14 for storage. In this mode, the heat stored in the thermal storage device 14 may be transferred to the evaporator 11 to improve the heating effect; part of the heat of condensation released by the evaporator 11 may also be stored in the heat storage device 14.
And a fourth mode: when the temperature of the thermal storage device 14 is lower than the casing temperature of the compressor 12, the second valve 12b is opened, and the first valve 11b and the third valve 13b are closed. The fourth valve 11c and the fifth valve 12c, and the first switch 14e and the second switch 13d are closed, and the waste heat generated from the compressor 12 is stored to the heat storage device 14 through the second heat exchange part 14c and the second heat exchange member 12 a. Under this mode, can make full use of compressor 12 waste heat, let compressor 12 in time dispel the heat, prolong compressor 12 life-span.
And a fifth mode: when the condenser 13 is frosted, the fifth valve 12c is opened, the first valve 11b, the second valve 12b, the third valve 13b and the fourth valve 11c are closed, and the first switch 14e and the second switch 13d are closed, so that the condenser 13 is directly defrosted by using the residual heat of the shell of the compressor 12 through the second heat exchange piece 12a and the third heat exchange piece 13a, thereby improving the heat utilization rate of the air conditioner 100.
Mode six: when the condenser 13 is frosted, the fifth valve 12c is opened, the first valve 11b, the second valve 12b, the third valve 13b and the fourth valve 11c are closed, and the first switch 14e and the second switch 13d are closed, so that the condenser 13 is directly defrosted by using part of condensation heat of the evaporator 11 through the first heat exchange member 11a and the third heat exchange member 13a, thereby improving the heat utilization rate of the air conditioner 100.
Mode seven: when the frosting working condition is bad, the temperature of the heat storage device 14 is low, and the defrosting heat cannot be provided, the second switch 13d is opened, the first valve 11b, the second valve 12b, the third valve 13b, the fourth valve 11c, the fifth valve 12c and the first switch 14e are closed, and the second electric heating element 13c can be directly utilized to heat and defrost the condenser 13, so that the condenser 13 can keep normal working performance, and the user experience is guaranteed.
In this embodiment, the air conditioner 100 can accumulate energy in the heat storage device 14 by the valley electricity, the condensation heat of the evaporator 11, and the residual heat of the compressor 12, and the heat stored in the heat storage device 14 can be used for defrosting the condenser 13 and supplementing heat to the evaporator 11. Simultaneously, the heat of condensation of evaporimeter 11, the waste heat of compressor 12 and second electric heating member 13c can directly be for the defrosting of condenser 13, have better defrosting effect to utilize the heat of condensation of evaporimeter 11 and the waste heat of compressor 12 also can improve thermal utilization ratio, make defrosting mode economy energy-conserving, and can reach the defrosting and do not shut down, thereby promoted user experience.
Furthermore, in other embodiments, the thermal storage device 14 may be used to defrost the condenser 13, that is, the thermal storage device 14 transfers heat to at least the condenser 13, and the heat source of the thermal storage device 14 may be electrically heated, or the thermal storage device 14 may store heat generated by heat exchange with the evaporator 11 and/or the compressor 12. In this embodiment, the heat of the air conditioner 100 itself can be utilized to defrost the condenser 13, so that the defrosting process is not stopped, and the energy and operation cost can be saved, thereby improving the user experience.
Referring to fig. 1 to 7, an air conditioner 100 according to an embodiment of the present invention: the heat storage device 14 can exchange heat with at least one of the evaporator 11, the compressor 12 and the condenser 13, and when the heat storage device 14 exchanges heat with the evaporator 11, if the temperature of the heat storage device 14 is higher than the temperature required by heating of the evaporator 11, the heat in the heat storage device 14 can be transferred to the evaporator 11 to supplement the energy required by heating for a user; if the temperature of the thermal storage device 14 is lower than the temperature required for heating, part of the condensation heat released from the evaporator 11 can be transferred to the thermal storage device 14 for storage. When the heat storage device 14 exchanges heat with the compressor 12, the waste heat generated by the compressor 12 can be stored in the heat storage device 14 so as to fully utilize the waste heat of the compressor 12, and the heat storage device 14 exchanges heat with the compressor 12, so that the compressor 12 can dissipate heat timely, and the service life of the compressor 12 is prolonged. When heat storage device 14 and condenser 13 heat transfer, heat transfer to condenser 13 of heat storage device 14 can be used for the defrosting of condenser 13, accomplishes the defrosting of not shutting down, saves the running cost to improve user experience. The air conditioner 100 provided by the embodiment of the invention can realize effective utilization of heat and has the effect of saving energy.
Referring to fig. 8, an embodiment of the present invention further provides a defrosting control method for an air conditioner, including step S100 and step S200.
Step S100: judging whether the condenser 13 needs defrosting; if the condenser 13 needs defrosting, step S200 is executed: the heat storage device 14 is controlled to defrost the condenser 13.
Note that, when step S100 and step S200 are executed, the heat storage device 14 and the condenser 13 are connected by a pipe, and the heat is dissipated to the condenser 13 by the stored energy of the heat storage device 14. The pipeline can be provided with a valve for controlling the pipeline to be switched on or off. Meanwhile, a heat exchanger for exchanging heat between the two may be provided, for example, the third heat exchange part 14d and the third heat exchanger as described above are provided, and the third valve 13b is provided on the pipeline.
Referring to fig. 9, further, the step S200 may include a sub-step S210 and a sub-step S220.
Substep S210: judging whether the temperature of the heat storage device 14 is greater than the defrosting temperature of the condenser 13; if the temperature of the heat storage device 14 is greater than the defrosting temperature of the condenser 13, the substep S220 is executed: the piping between the heat storage device 14 and the condenser 13 is controlled to conduct to defrost the condenser 13.
Referring to fig. 10, in an alternative embodiment, the method may further include step S300 and step S400.
Step S300: determining whether the casing temperature of the compressor 12 is greater than the temperature of the heat storage device 14; if the casing temperature of the compressor 12 is greater than the temperature of the heat storage device 14, step S400 is executed: the conduction of the piping between the compressor 12 and the heat storage device 14 is controlled to store heat in the heat storage device 14 by the casing heat of the compressor 12.
In step S300 and step S400, the heat storage device 14 can store heat by the casing heat of the compressor 12. A heat exchanger may be provided for exchanging heat between the two and connected by a pipeline, for example, the second heat exchange part 14c and the second heat exchanger as described above are provided, and the second valve 12b is provided on the pipeline.
Referring to fig. 11, in an alternative embodiment, the method may further include step S500 and step S600.
Step S500: judging whether the temperature required for heating of the evaporator 11 is greater than the temperature of the heat storage device 14; if the temperature required for heating of the evaporator 11 is greater than the temperature of the heat storage device 14, step S600 is executed: the conduction of the pipe between the evaporator 11 and the thermal storage device 14 is controlled to store heat in the thermal storage device 14 through the evaporator 11.
In step S500 and step S600, the heat storage device 14 can store heat by the heat of the evaporator 11. A heat exchanger for exchanging heat between the two may be provided and connected by a pipeline, for example, the first heat exchange part 14b and the first heat exchanger as described above are provided, and the first valve 11b is provided on the pipeline.
Referring to fig. 12, in an alternative embodiment, the method may further include step S700 and step S800.
Step S700: judging whether the current time period is in a valley power interval of the peak-valley power price time interval; if the current time period is in the valley power interval of the peak-valley power rate time interval, executing step S800: the heat storage device 14 stores heat by commercial power.
In step S700 and step S800, the heat storage device 14 may store heat by the commercial power. The first electric heating member 14a as described above may be provided to store heat in the heat storage device 14. When the commercial power is utilized, the peak-valley electricity price policy is utilized, and the purposes of economy and energy conservation are achieved.
The embodiment of the invention provides an air conditioner defrosting control method, which comprises the following steps: when the condenser 13 needs defrosting, the condenser 13 is defrosted through the heat storage device 14, and the heat stored in the heat storage device 14 can be from multiple sources, so that the energy can be saved, and the utilization rate of the heat can be improved.
Referring to fig. 13, the embodiment provides a defrosting control device 15 for an air conditioner, which includes a determining module 15a and a control module 15 b.
The judging module 15 a: for determining whether the condenser 13 needs defrosting.
In the embodiment of the present invention, the step S100 is executed by the determining module 15 a.
The control module 15 b: for controlling the heat storage device 14 to defrost the condenser 13 if the condenser 13 needs defrosting.
In the embodiment of the present invention, the step S200 is executed by the control module 15 b.
In an alternative embodiment, the control module 15b is further configured to: judging whether the temperature of the heat storage device 14 is greater than the defrosting temperature of the condenser 13; if the temperature of the heat storage device 14 is higher than the defrosting temperature of the condenser 13, the pipeline between the heat storage device 14 and the condenser 13 is controlled to be conducted to defrost the condenser 13.
In the embodiment of the present invention, the above sub-step S210 and the sub-step S220 are performed by the control module 15 b.
In an alternative embodiment, the control module 15b is further configured to: determining whether the casing temperature of the compressor 12 is greater than the temperature of the heat storage device 14; if the shell temperature of the compressor 12 is greater than the temperature of the heat storage device 14, the conduction of the pipeline between the compressor 12 and the heat storage device 14 is controlled to store heat in the heat storage device 14 by the shell heat of the compressor 12.
In the embodiment of the present invention, the above steps S300 and S400 are executed by the control module 15 b.
In an alternative embodiment, the control module 15b is further configured to: judging whether the temperature required for heating of the evaporator 11 is greater than the temperature of the heat storage device 14; if the temperature required for heating of the evaporator 11 is higher than the temperature of the thermal storage device 14, the conduction of the pipes between the evaporator 11 and the thermal storage device 14 is controlled to store heat in the thermal storage device 14 through the evaporator 11.
In the embodiment of the present invention, the above steps S500 and S600 are executed by the control module 15 b.
In an alternative embodiment, the control module 15b is further configured to: judging whether the current time period is in a valley power interval of the peak-valley power price time interval; if the current time period is in the valley power interval of the peak-valley power rate time interval, the heat is stored in the heat storage device 14 through the commercial power.
In the embodiment of the present invention, the above steps S700 and S800 are executed by the control module 15 b.
The defrosting control device of the air conditioner 100 provided by the embodiment of the invention comprises the following components: when the condenser 13 needs defrosting, the condenser 13 is defrosted through the heat storage device 14, and the heat stored in the heat storage device 14 can be from multiple sources, so that the energy can be saved, and the utilization rate of the heat can be improved.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (15)

1. An air conditioner comprising an evaporator (11), a compressor (12) and a condenser (13), the evaporator (11) being connected to the compressor (12), the compressor (12) being connected to the condenser (13), characterized in that the air conditioner (100) further comprises a thermal storage device (14), the thermal storage device (14) being connected to at least one of the evaporator (11), the compressor (12) and the condenser (13) through a pipe and exchanging heat with at least one of the evaporator (11), the compressor (12) and the condenser (13); a first electric heating element (14a) is arranged on the heat storage device (14), and the first electric heating element (14a) is used for storing energy for the heat storage device (14).
2. The air conditioner according to claim 1, wherein the heat storage device (14) is further provided with a heat exchange member connected to at least one of the evaporator (11), the compressor (12) and the condenser (13) through a pipe for heat exchange between the heat storage device (14) and at least one of the evaporator (11), the compressor (12) and the condenser (13).
3. The air conditioner according to claim 2, wherein the heat exchanging part comprises a first heat exchanging part (14b), a first heat exchanging element (11a) is provided on the evaporator (11), the first heat exchanging part (14b) is connected with the first heat exchanging element (11a) through a pipe, and the first heat exchanging part (14b) can exchange heat with the first heat exchanging element (11 a);
and/or the heat exchange component further comprises a second heat exchange component (14c), a second heat exchange piece (12a) is arranged on the compressor (12), the second heat exchange component (14c) is connected with the second heat exchange piece (12a) through a pipeline, and the second heat exchange component (14c) can exchange heat with the second heat exchange piece (12 a);
and/or the heat exchange component further comprises a third heat exchange component (14d), a third heat exchange piece (13a) is arranged on the condenser (13), the third heat exchange component (14d) is connected with the third heat exchange piece (13a) through a pipeline, and the third heat exchange component (14d) can exchange heat with the third heat exchange piece (13 a).
4. The air conditioner according to claim 3, wherein a first valve (11b) is provided on a pipe between the first heat exchanging part (14b) and the first heat exchanging element (11a), and the first valve (11b) is used for controlling the pipe between the first heat exchanging part (14b) and the first heat exchanging element (11a) to be turned on or off;
and/or a second valve (12b) is arranged on a pipeline between the second heat exchange part (14c) and the second heat exchange part (12a), and the second valve (12b) is used for controlling the pipeline between the second heat exchange part (14c) and the second heat exchange part (12a) to be switched on or off;
and/or a third valve (13b) is arranged on a pipeline between the third heat exchange part (14d) and the third heat exchange part (13a), and the third valve (13b) is used for controlling the pipeline between the third heat exchange part (14d) and the third heat exchange part (13a) to be switched on or off.
5. Air conditioner according to claim 1, characterized in that the condenser (13) is further provided with a second electric heating element (13c), the second electric heating element (13c) being used for heating and defrosting the condenser (13).
6. The air conditioner according to claim 1, wherein the evaporator (11) is provided with a first heat exchanging member (11a), the condenser (13) is provided with a third heat exchanging member (13a), and the first heat exchanging member (11a) and the third heat exchanging member (13a) are connected by a pipe for exchanging heat between the first heat exchanging member (11a) and the third heat exchanging member (13 a).
7. The air conditioner according to claim 6, wherein a fourth valve (11c) is provided on a pipe between the first heat exchanging element (11a) and the third heat exchanging element (13a), and the fourth valve (11c) is used for controlling the pipe between the first heat exchanging element (11a) and the third heat exchanging element (13a) to be turned on or off.
8. The air conditioner according to claim 1, wherein the condenser (13) is provided with a third heat exchanging member (13a), the compressor (12) is provided with a second heat exchanging member (12a), and the second heat exchanging member (12a) and the third heat exchanging member (13a) are connected by a pipe for exchanging heat between the second heat exchanging member (12a) and the third heat exchanging member (13 a).
9. The air conditioner according to claim 8, wherein a fifth valve (12c) is provided on a pipe between the second heat exchanging element (12a) and the third heat exchanging element (13a), and the fifth valve (12c) is used for controlling the pipe between the second heat exchanging element (12a) and the third heat exchanging element (13a) to be turned on or off.
10. An air conditioner defrosting control method is used for an air conditioner (100), and is characterized in that the air conditioner (100) comprises an evaporator (11), a compressor (12), a condenser (13) and a heat storage device (14), wherein the evaporator (11) is connected with the compressor (12), the compressor (12) is connected with the condenser (13), and the heat storage device (14) is connected with the condenser (13) through a pipeline and exchanges heat with the condenser (13);
the method comprises the following steps:
judging whether the condenser (13) needs defrosting;
and if the condenser (13) needs defrosting, controlling the heat storage device (14) to defrost the condenser (13).
11. The air conditioner defrosting control method according to claim 10, wherein the step of controlling the heat storage device (14) to defrost the condenser (13) includes:
judging whether the temperature of the heat storage device (14) is greater than the defrosting temperature of the condenser (13);
and if the temperature of the heat storage device (14) is higher than the defrosting temperature of the condenser (13), controlling the conduction of a pipeline between the heat storage device (14) and the condenser (13) so as to defrost the condenser (13).
12. The air conditioner defrosting control method according to claim 10 or 11, wherein the heat storage device (14) is connected to a casing of the compressor (12) through a pipe and is capable of exchanging heat with the casing of the compressor (12), the method further comprising:
determining whether the temperature of the casing of the compressor (12) is greater than the temperature of the heat storage device (14);
and if the shell temperature of the compressor (12) is higher than the temperature of the heat storage device (14), controlling the conduction of a pipeline between the compressor (12) and the heat storage device (14) so as to store heat for the heat storage device (14) through the shell heat of the compressor (12).
13. The air conditioner defrost control method according to claim 10 or 11, wherein the heat storage device (14) is connected to the evaporator (11) through a pipe and is capable of exchanging heat with the evaporator (11), the method further comprising:
judging whether the temperature required by heating of the evaporator (11) is greater than the temperature of the heat storage device (14);
and if the temperature required by heating of the evaporator (11) is higher than the temperature of the heat storage device (14), controlling the conduction of a pipeline between the evaporator (11) and the heat storage device (14) so as to store heat for the heat storage device (14) through the evaporator (11).
14. The air conditioner defrost control method of claim 10 or 11, further comprising:
judging whether the current time period is in a valley power interval of the peak-valley power price time interval;
and if the current time period is in a valley electricity interval of the peak-valley electricity price time interval, storing heat of the heat storage device (14) through the commercial power.
15. An air conditioner defrosting control device is used for an air conditioner (100), and is characterized in that the air conditioner (100) comprises an evaporator (11), a compressor (12), a condenser (13) and a heat storage device (14), wherein the evaporator (11) is connected with the compressor (12), the compressor (12) is connected with the condenser (13), and the heat storage device (14) is connected with the condenser (13) through a pipeline and exchanges heat with the condenser (13);
the device comprises:
a judging module (15 a): for determining whether the condenser (13) needs defrosting;
control module (15 b): for controlling the heat storage device (14) to defrost the condenser (13) if the condenser (13) needs defrosting.
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CN113357762A (en) * 2021-05-20 2021-09-07 青岛海尔空调器有限总公司 Heat storage control method for heat storage air conditioning fan, heat storage air conditioning fan and storage medium

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