CN106705302B - Air conditioner, defrosting control method and defrosting control system - Google Patents

Air conditioner, defrosting control method and defrosting control system Download PDF

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Publication number
CN106705302B
CN106705302B CN201710016287.0A CN201710016287A CN106705302B CN 106705302 B CN106705302 B CN 106705302B CN 201710016287 A CN201710016287 A CN 201710016287A CN 106705302 B CN106705302 B CN 106705302B
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China
Prior art keywords
air conditioner
temperature
storage heater
preset duration
defrost
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CN201710016287.0A
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CN106705302A (en
Inventor
姬安生
谭周衡
曾小朗
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Midea Group Co Ltd
Midea Group Wuhan Refrigeration Equipment Co Ltd
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Midea Group Co Ltd
Midea Group Wuhan Refrigeration Equipment Co Ltd
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Priority to CN201710016287.0A priority Critical patent/CN106705302B/en
Publication of CN106705302A publication Critical patent/CN106705302A/en
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Classifications

    • 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
    • F24F5/0017—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 using cold storage bodies, e.g. ice
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F25B2347/02—Details of 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Fuzzy Systems (AREA)
  • Sustainable Development (AREA)
  • Atmospheric Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention provides a kind of air conditioner, defrosting control method and defrosting control system, air conditioner includes: compressor；Indoor heat exchanger；Outdoor heat exchanger；Four-way valve；Throttling set；Accumulation of heat component is arranged between four-way valve and outdoor heat exchanger, and accumulation of heat component includes storage heater, water replanishing device, electric heating part, the first temperature-detecting device and second temperature detection device；Shut-off valve is arranged between four-way valve and outdoor heat exchanger, connect with accumulation of heat modules in parallel.Air conditioner provided by the invention, accumulation of heat component makes air conditioner carry out defrost in a heating mode, guarantee good defrosting effect and heating effect, promote user's comforts of use, when heat-storing material water shortage defrosting effect is bad, the timely moisturizing of water replanishing device, four-way valve commutation makes air conditioner defrost in cooling mode, guarantee good defrosting effect, four-way valve commutation makes air conditioner defrost in a heating mode after moisturizing, improves user's comforts of use.

Description

Air conditioner, defrosting control method and defrosting control system
Technical field
The present invention relates to air conditioner technical fields, in particular to a kind of air conditioner, defrosting control method and defrost control System processed.
Background technique
Air conditioner in the related technology usually carries out hot gas defrosting using the delivery temperature of compressor, when starting defrosting, Four-way valve commutation, makes outdoor heat exchanger heat release, and indoor heat exchanger heat absorption causes indoor environment temperature to reduce, in this way colder In environment, air conditioner runs refrigeration cycle, will lead to that room temperature is sometimes hot and sometimes cold, influences the comfort level of user；And it defrosted Frost in journey due to outdoor heat exchanger lower part is more difficult cleared, when in top half, oneself finishes through defrosting, it is necessary to until outdoor is changed Partially defrosting under hot device completely can be completed at the same time defrosting and enter normal heating operation state, therefore waste a part Heat, and extend defrosting process, reduce heating capacity and reduce overall heating effect.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, the embodiment of the first aspect of the present invention proposes a kind of air-conditioning Device.
A kind of the second aspect of the present invention embodiment, it is also proposed that defrosting control method.
A kind of another aspect of the invention embodiment, it is also proposed that defrosting control system.
In view of this, according to the embodiment of the first aspect of the invention, the invention proposes a kind of air conditioners, comprising: pressure Contracting machine；Indoor heat exchanger；Outdoor heat exchanger；Four-way valve is arranged between indoor heat exchanger and outdoor heat exchanger, the two of four-way valve The air inlet and air outlet of a orifice compressor, one end and outdoor of the another two orifice indoor heat exchanger of four-way valve One end of heat exchanger；Throttling set is arranged between the other end of indoor heat exchanger and the other end of outdoor heat exchanger；Accumulation of heat group Part is arranged between four-way valve and outdoor heat exchanger, and accumulation of heat component includes storage heater, water replanishing device, electric heating part, the first temperature Detection device and second temperature detection device, storage heater are used to accommodate the heat-storing material including at least water, storage heater be provided with and The import and the outlet being connected with four-way valve, water replanishing device that outdoor heat exchanger is connected are connected with storage heater, electric heating part It is arranged on storage heater, the first temperature-detecting device is arranged in accumulator outlet, for detecting Outlet Gas Temperature, second temperature Detection device is arranged on storage heater, for detecting the temperature of storage heater；Shut-off valve, setting four-way valve and outdoor heat exchanger it Between, it is connect with accumulation of heat modules in parallel.
Air conditioner provided by the invention, by the way that accumulation of heat component is arranged between four-way valve and outdoor heat exchanger, air conditioner exists When reaching defrost condition under heating mode, control shut-off valve is closed, and storage heater is heated in electric heating part work, so that accumulation of heat Device stores heat, the heat that electric heating part heat storage device keeps heat-storing material storage sufficient, refrigerant by the heat-storing material accommodated Heat is fully absorbed in the storage heater by being electrically heated part heating, improves the temperature for flowing to indoor heat exchanger refrigerant, in turn Guarantee good heating effect, simultaneously as it is higher to migrate the temperature to the refrigerant of outdoor heat exchanger by indoor heat exchanger, so that Air conditioner can also carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to outdoor heat exchanger and carries out defrost, guarantees Outdoor heat exchanger is quick, thorough defrost, avoid four-way valve commutation make air conditioner in cooling mode defrost fluctuations in indoor temperature compared with The big comfort level for influencing user, effectively improves user's comforts of use, improves the satisfaction that user uses；Existed by setting The Outlet Gas Temperature of the temperature-detecting device detection storage heater of accumulator outlet, and Outlet Gas Temperature is poor within a preset time It controls electric heating part when greater than fiducial temperature to stop working, control shut-off valve is opened, and four-way valve commutation makes air conditioner in refrigeration mould Defrost under formula, so that making air conditioner in refrigeration mould by four-way valve commutation in the case where heat-storing material deficiency defrosting effect is poor Defrost is carried out under formula, and then guarantees timeliness, validity, the completeness of air conditioner defrost, is guaranteed good defrosting effect, is avoided Defrosting effect is poor and influences the heating effect of air conditioner, is effectively guaranteed good heating effect, guarantees that air conditioner can Normal operation defrosts, and promotes the usage experience of user, improves the satisfaction that user uses；Water replanishing device work is controlled simultaneously Moisturizing is carried out to storage heater, enables storage heater active moisturizing in heat-storing material deficiency, supplements accumulation of heat manually without user Material promotes the usage experience of user, and by recording the moisturizing duration of water replanishing device, temperature-detecting device detects the temperature of storage heater Degree, and in preset duration storage heater temperature changing speed be less than or equal to preset value when, control water replanishing device stop moisturizing, control Four-way valve commutation processed makes air conditioner defrost in a heating mode, returns and control shut-off valve is closed again, and electric heating part work makes Water replanishing device can make the heat-storing material of storage heater sufficient in certain time, and air conditioner defrost in a heating mode is further protected Demonstrate,prove good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, promote user Usage experience, improve the satisfaction that uses of user.
Further, it is connect by the shut-off valve being arranged between four-way valve and outdoor heat exchanger with accumulation of heat modules in parallel, Be conducive to control the working condition of accumulation of heat component or shut-off valve to meet air conditioner with different mode operations, avoid the need for shutting down The comfort that user uses is influenced to meet air conditioner with different mode operations, and then ensure that air conditioner in operational process In can switch different modes, promote the usage experience of user, improve the satisfaction that user uses.
In addition, the air conditioner in above-described embodiment provided by the invention can also have following additional technical feature:
In the above-mentioned technical solutions, it is preferable that further include: the top of water replanishing device, moisturizing dress is arranged in bottom plate of outdoor unit It sets and is connected with bottom plate of outdoor unit.
In the technical scheme, by the way that bottom plate of outdoor unit to be arranged in the top of water replanishing device, water replanishing device and outdoor unit Chassis is connected, so that water replanishing device can be remained using outdoor unit defrost on bottom plate of outdoor unit when heat-storing material lacks water Water supplement heat-storing material, saved the energy, efficiently used the remaining water of defrost, at the same simplify water replanishing device confession The setting of water-bound, it is compact-sized, meet the needs of product miniaturization, it is applied widely.
In any of the above-described technical solution, it is preferable that further include: drain pan of indoor machine, water replanishing device and indoor unit water receiving Disk is connected.
In the technical scheme, by the way that water replanishing device is connected with drain pan of indoor machine, so that lacking in heat-storing material When water, water replanishing device can supplement heat-storing material using the water in drain pan of indoor machine, saved the energy, made drain pan of indoor machine In water efficiently used, while simplifying the setting of water replanishing device water-supply structure, it is compact-sized, meet product miniaturization Demand, it is applied widely
In any of the above-described technical solution, it is preferable that the first temperature-detecting device and second temperature detection device are temperature Sensor.
In the technical scheme, the first temperature-detecting device and second temperature detection device are temperature sensor, and temperature passes Cost is relatively low for sensor, compact-sized, sensitivity is higher, the outlet of storage heater can easily be arranged in, and meet storage heater Structure, further, the first temperature-detecting device and second temperature detection device may be other temperature inspection met the requirements Survey device.
In any of the above-described technical solution, it is preferable that throttling set is electric expansion valve.
In the technical scheme, throttling set is electric expansion valve, so that being controlled according to the different operational modes of air conditioner Electric expansion valve is opened with different aperture threshold values, and then meets the different demands to coolant quantity of air-conditioner system, is applicable in model It encloses extensively, and can guarantee good heating effect and defrosting effect, and then improve the satisfaction that user uses.Further, Air conditioner in a heating mode defrost when, electric expansion valve is with the unlatching of maximum opening threshold value, to guarantee that sufficient coolant quantity carries out Energy exchange guarantees good defrosting effect and heating effect, improves the satisfaction that user uses.
Embodiment according to the second aspect of the invention, it is also proposed that a kind of defrosting control method is used for air conditioner, air conditioner For air conditioner described in any of the above-described technical solution, defrosting control method include: air conditioner in a heating mode, detect air conditioner System parameter；Judge whether system parameter reaches default defrost condition；If so, control shut-off valve is closed, electric heating part is controlled Work, which carries out heating to storage heater, makes air conditioner defrost in a heating mode；Record the operating time of electric heating part, detection outlet Detected Outlet Gas Temperature T1 is recorded as by gas temperature T1 when length reaches the first preset duration t1 at work T10, and after the second preset duration t2, detected Outlet Gas Temperature T1 is recorded as T1i；Whether judge T1i-T10 Greater than fiducial temperature Δ T；If so, control electric heating part stops working, control shut-off valve is opened, and control water replanishing device work is to storage Hot device carries out moisturizing, and control four-way valve commutation makes air conditioner defrost in cooling mode；Record the moisturizing duration of water replanishing device, inspection The temperature T2 of storage heater is surveyed, and when moisturizing duration reaches third preset duration t3, by the temperature T2 of detected storage heater It is recorded as T20, and after the 4th preset duration t4, the temperature T2 of detected storage heater is recorded as T2i；Judge (T2i- Whether T20)/t4 is less than or equal to preset value A；If so, control water replanishing device stops moisturizing, control four-way valve commutation makes air conditioner exist Defrost under heating mode, returns and control shut-off valve is closed again, and electric heating part work, which carries out heating to storage heater, makes air conditioner Defrost in a heating mode.
The defrosting control method that the embodiment of second aspect of the present invention provides, in a heating mode by air conditioner, detection The system parameter of air conditioner, and when system parameter reaches default defrost condition, control shut-off valve is closed, and electric heating part work is controlled Make that storage heater is carried out to heat to make air conditioner defrost in a heating mode, so that refrigerant is in the accumulation of heat by being electrically heated part heating Heat is fully absorbed when device, improves the temperature for flowing to indoor heat exchanger refrigerant, and then guarantee good heating effect, meanwhile, by Indoor heat exchanger, which is migrated to the higher refrigerant of temperature of outdoor heat exchanger, is conducive to outdoor heat exchanger progress defrost, guarantees that outdoor is changed Hot device is quick, thorough defrost, and avoiding four-way valve commutation from making air conditioner, defrost makes the larger shadow of fluctuations in indoor temperature in cooling mode The comfort level for ringing user effectively improves user's comforts of use, improves the satisfaction that user uses；By detecting storage heater Outlet Gas Temperature T1, when length reaches the first preset duration t1 at work, the Outlet Gas Temperature that will test is recorded as T10, and after the second preset duration t2, the Outlet Gas Temperature that will test is recorded as T1i, and when whether T1i-T10 is greater than The judging result of fiducial temperature is to be stopped working when being by controlling electric heating part, and control shut-off valve is opened, and control four-way valve changes To air conditioner defrost in cooling mode is made, so that passing through four in the case where heat-storing material deficiency water shortage defrosting effect is poor Port valve commutation makes air conditioner carry out defrost in cooling mode, and then guarantees the timeliness of air conditioner defrost, validity, thoroughly Property, guarantee good defrosting effect, avoid defrosting effect poor and influence the heating effect of air conditioner, is effectively guaranteed good Heating effect, guarantee that air conditioner can also be operated normally in heat-storing material deficiency and be defrosted, promote user uses body It tests, improves the satisfaction that user uses, while controlling water replanishing device work and moisturizing is carried out to storage heater, so that storage heater is in accumulation of heat When material deficiency can active moisturizing, supplement heat-storing material manually without user, promote the usage experience of user, pass through record mend The moisturizing duration of water installations detects the temperature T2 of storage heater, and when moisturizing duration reaches third preset duration t3, will test The thermograph of storage heater be T20, after the 4th preset duration t4, the thermograph of the storage heater that will test is T2i, (T2i-T20) judging result whether/t4 is less than or equal to preset value A is when being, to illustrate that storage heater temperature changing speed reaches pre- If value, the water in heat-storing material is sufficient, and control water replanishing device stops moisturizing, and control four-way valve commutation makes air conditioner in heating mode Lower defrost, returns and control shut-off valve is closed again, electric heating part work, so that the temperature rise speed of storage heater is less than or equal to default When value, the heat-storing material of storage heater can be made sufficient in certain time by water replanishing device, air conditioner defrost in a heating mode, Be further ensured that good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, The usage experience of user is promoted, the satisfaction that user uses is improved；Simultaneously by returning and controlling air conditioner in heating mould again Whether defrost under formula enables water in the air conditioner heat-storing material of self-test in real time sufficient, replaces defrost pattern in time and guarantee well Defrosting effect and heating effect, make air conditioner in heat-storing material in hydropenic situation can normal defrost, and filled in water Heating mode defrost is changed in the case where foot into guarantee user's comforts of use, promotes the usage experience of user.
In any of the above-described technical solution, it is preferable that further include: when judging whether T1i-T10 is greater than fiducial temperature Δ T's Judging result is when being, to push and show water shortage moisturizing information；When whether judgement (T2i-T20)/t4 is less than or equal to preset value A's Judging result is when being, to push and show that moisturizing finishes information.
It in the technical scheme, is push when being by whether being greater than the judging result of fiducial temperature Δ T in T1i-T10 And showing water shortage moisturizing information, the heat-storing material for facilitating user to understand air conditioner accurately and in time lacks water, so that user checks Water replanishing device whether is capable of providing sufficient water so that air conditioner defrost in a heating mode, has simultaneously effective prompted user empty The defrost pattern for adjusting device current is refrigeration mode defrost, is conducive to user according to the current defrost pattern of air conditioner and controls air conditioner Working condition and increase and decrease clothing, to guarantee good heating effect, and then improve satisfaction and comfort level that user uses；It is logical It crosses when judging whether (T2i-T20)/t4 is less than or equal to the judging result of preset value A to be, push and shows that moisturizing finishes letter Breath has effectively prompted user's air conditioner to work as so that user understands the abundance of the water in air conditioner heat-storing material accurately and in time Preceding defrost pattern is heating mode defrost, is conducive to the work that user controls air conditioner according to the current defrost pattern of air conditioner State simultaneously increases and decreases clothing, to guarantee good heating effect, and then improves satisfaction and comfort level that user uses.
In any of the above-described technical solution, it is preferable that further include: when judging whether T1i-T10 is greater than fiducial temperature Δ T's When judging result is no, Outlet Gas Temperature T1 detected is recorded as T10 again, return simultaneously will after the second preset duration Outlet Gas Temperature T1 is recorded as T1i.
In the technical scheme, by whether being greater than sentencing for fiducial temperature in accumulator outlet gas temperature differential T1i-T10 When disconnected result is no, Outlet Gas Temperature T1 detected is recorded as T10 again, so that passing through after the second preset duration Outlet Gas Temperature T1 is recorded as T1i, rejudges whether T1i-T10 is greater than fiducial temperature, continues real-time, circulation detection Whether heat-storing material lacks water, and controls air conditioner defrost in cooling mode in time in the case where water shortage, guarantees defrost Timeliness and validity guarantee good defrosting effect, promote the usage experience of user.
In any of the above-described technical solution, it is preferable that further include: when judgement (T2i-T20)/whether t4 is less than or equal to is preset When the judging result of value A is no, the temperature T2 of detected storage heater is recorded as T20 again, returned and default the 4th The temperature T2 of storage heater is recorded as T2i after duration.
In the technical scheme, by whether be less than or equal in (T2i-T20)/t4 preset value A judging result be it is no when, The temperature T2 of detected storage heater is recorded as T20 again, so that by the temperature T2 of storage heater after the 4th preset duration It is recorded as T2i, can rejudge whether (T2i-T20)/t4 is less than or equal to preset value A, and then in real time according to judging result control The working condition of water replanishing device processed, shut-off valve and electric heating part makes to make in the case that water of the air conditioner in heat-storing material is sufficient Air conditioner carries out defrost with heating mode, and then avoids fluctuations in indoor temperature larger, is effectively guaranteed user and uses air-conditioning Comfort level promotes the usage experience of user.
In any of the above-described technical solution, it is preferable that control shut-off valve close, control electric heating part work to storage heater into Row heating makes air conditioner, and the specific steps of defrost include: to control shut-off valve to close in a heating mode；In the 5th preset duration t5 Afterwards, the work of control electric heating part, which carries out heating to storage heater, makes air conditioner defrost in a heating mode.
In the technical scheme, it is closed by control shut-off valve, after the 5th preset duration, control electric heating part work pair Storage heater, which carries out heating, makes air conditioner defrost in a heating mode, so that air conditioner is meeting the defrost condition initial stage, first leads to It crosses the heat that storage heater stores under air conditioner heat-production mode and carries out defrost, so that the heat of storage heater storage obtains effective benefit With, and control electric heating part work after the 5th preset duration and storage heater is heated, avoid electric heating part from working always wave Take the energy, effectively saved the energy, avoid wasting, reduce use cost, improves the satisfaction that user uses.
In any of the above-described technical solution, it is preferable that when the first preset duration t1, the second preset duration t2, third are default Long t3, the 4th preset duration t4, the 5th preset duration t5 are at least one of: the relational expression of storage heater volume, heat-storing material Relational expression, fixed value.
In the technical scheme, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th preset Duration t4, the 5th preset duration t5 are at least one of but not limited to this: the pass of the relational expression of storage heater volume, heat-storing material It is formula, fixed value, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th preset duration t4, the 5th A variety of expression ways of preset duration t5 can satisfy the demand of different air conditioners, different accumulation of heat components and different user, be applicable in It is in extensive range.
In any of the above-described technical solution, it is preferable that fiducial temperature Δ T, preset value A are at least one of: storage heater The relational expression of volume, the relational expression of heat-storing material, the relational expression of the first preset duration t1, the relational expression of the second preset duration t2, Relational expression, the relational expression of the 4th preset duration t4, relational expression, the fixed value of the 5th preset duration t5 of third preset duration t3.
In the technical scheme, fiducial temperature Δ T, preset value A are at least one of but not limited to this: storage heater volume Relational expression, the relational expression of heat-storing material, the relational expression of the first preset duration t1, relational expression, the third of the second preset duration t2 The relational expression of preset duration t3, the relational expression of the 4th preset duration t4, relational expression, the fixed value of the 5th preset duration t5 are preset Temperature difference T, preset value A a variety of expression ways can satisfy the demand of different air conditioners, different accumulation of heat component and different user, It is applied widely.
In any of the above-described technical solution, it is preferable that system parameter is at least one of or combinations thereof: the temperature of storage heater Degree, the Outlet Gas Temperature of storage heater, the temperature of condenser, the runing time of compressor, the running frequency of compressor.
In the technical scheme, system parameter is at least one of or combinations thereof but not limited to this: the temperature of storage heater, The Outlet Gas Temperature of storage heater, the temperature of condenser, the runing time of compressor, the running frequency of compressor, system parameter A variety of expression-forms can satisfy the demand of different air conditioners and different user, it is applied widely.
In any of the above-described technical solution, it is preferable that the first preset duration t1 is 4 minutes, and the second preset duration t2 is 0.5 Minute, fiducial temperature Δ T is 50 DEG C, and third preset duration t3 is 1 minute, and the 4th preset duration is 4 minutes, and preset value A is 10, 5th preset duration is 2 minutes.
In the technical scheme, air conditioner is when system parameter reaches default defrost condition in a heating mode, control cut-off Valve is closed, and control electric heating part work after the 2 minutes, so that air conditioner is meeting the defrost condition initial stage, first passes through storage The heat that hot device stores under air conditioner heat-production mode carries out defrost, so that the heat of storage heater storage is utilized effectively, keeps away Exempt from electric heating part to work always waste of energy, effectively saved the energy, avoided wasting, reduces use cost, while making cold Matchmaker fully absorbs heat in the storage heater by being electrically heated part heating, improves the temperature for flowing to indoor heat exchanger refrigerant, into And guarantee good heating effect, simultaneously as it is higher to migrate the temperature to outdoor heat exchanger refrigerant by indoor heat exchanger, so that Air conditioner can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to outdoor heat exchanger and carries out defrost, guarantees Outdoor heat exchanger is quick, thorough defrost, and avoiding four-way valve commutation from making air conditioner, defrost makes fluctuations in indoor temperature in cooling mode It is larger, and then improve user's comforts of use and satisfaction；By recording the operating time of electric heating part, and in electric heating part The Outlet Gas Temperature T1 of storage heater is recorded as T10 in 4 minutes by work, is recorded after 0.5 minute by the exit gas of storage heater Temperature T1 is recorded as T1i, judges whether T1i-T10 is greater than 50 DEG C of fiducial temperature, if so, control electric heating part stops working, controls Shut-off valve processed is opened, and control four-way valve commutation makes air conditioner defrost in cooling mode, so that changing in heat-storing material deficiency water shortage So that air conditioner is carried out defrost in cooling mode by four-way valve commutation in the case that white effect is poor, and then guarantees air conditioner Timeliness, the validity, completeness of frost, guarantee good defrosting effect, avoid defrosting effect poor and influence the system of air conditioner Thermal effect, is effectively guaranteed good heating effect, guarantee air conditioner can also be operated normally in heat-storing material deficiency into Row defrosting, promotes the usage experience of user, improves the satisfaction that user uses, meanwhile, control water replanishing device work is to storage heater Moisturizing is carried out, enables storage heater active moisturizing in heat-storing material deficiency, supplements heat-storing material manually without user, is promoted The usage experience of user；By recording the moisturizing duration of water replanishing device, the temperature T2 of storage heater is detected, and reach in moisturizing duration At 1 minute, the thermograph for the storage heater that will test is T20, after 4 minutes, the thermograph for the storage heater that will test For T2i, when the judging result whether (T2i-T20)/4 is less than or equal to preset value 10 is to be, control water replanishing device stops moisturizing, Control four-way valve commutation makes air conditioner defrost in a heating mode, returns and control shut-off valve is closed again, electric heating part work, Water replanishing device is set to keep the heat-storing material of storage heater sufficient in certain time, air conditioner defrost in a heating mode, further Guarantee good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, promoted and used The usage experience at family improves the satisfaction that user uses；Changed in a heating mode by returning and controlling air conditioner again simultaneously Whether frost enables water in the air conditioner heat-storing material of self-test in real time sufficient, replaces defrost pattern in time and guarantee good defrost Effect and heating effect, make air conditioner in heat-storing material in hydropenic situation can normal defrost, and in the feelings of water abundance Heating mode defrost is changed under condition into guarantee user's comforts of use, promotes the usage experience of user.
Embodiment in accordance with a further aspect of the present invention, it is also proposed that a kind of defrosting control system is used for air conditioner, air conditioner For the air conditioner of any of the above-described technical solution, defrosting control system includes: first detection unit, for air conditioner in heating mode Under, detect the system parameter of air conditioner；First judging unit, for judging whether system parameter reaches default defrost condition；The One execution unit, for when the judging result of the first judging unit, which is, is, control shut-off valve closing, control electric heating part to work Carrying out heating to storage heater makes air conditioner defrost in a heating mode, starts second detection unit and the first recording unit；Second Detection unit, for detecting Outlet Gas Temperature T1；First recording unit, for recording the operating time of electric heating part, in work When reaching the first preset duration t1 as duration, the Outlet Gas Temperature T1 that second detection unit detects is recorded as T10, and the After two preset duration t2, the Outlet Gas Temperature T1 of second detection unit detection detection is recorded as T1i；Second judgment unit, For judging whether Ti-T0 is greater than fiducial temperature；Second execution unit is yes for the judging result in second judgment unit When, control electric heating part stops working, and control shut-off valve is opened, and the work of control water replanishing device carries out moisturizing, control to storage heater Four-way valve commutation makes air conditioner defrost in cooling mode, and starts third detection unit and the second recording unit；Third detection Unit, for detecting the temperature T2 of storage heater；Second recording unit, for recording the moisturizing duration of water replanishing device, and in moisturizing When duration reaches third preset duration t3, the temperature T2 for the storage heater that third detection unit detects is recorded as T20, and After four preset duration t4, the temperature T2 for the storage heater that third detection unit detects is recorded as T2i；Third judging unit is used Whether it is less than or equal to preset value A in judgement (T2i-T20)/t4；Third execution unit, for the judgement knot in third judging unit Fruit is when being, control water replanishing device stops moisturizing, and control four-way valve commutation makes air conditioner defrost in a heating mode, and returns simultaneously Restart the first execution unit.
The defrosting control system that the embodiment of further aspect of the present invention provides, by first detection unit in air conditioner heat-production Under mode, the system parameter of air conditioner is detected, the first judging unit judges whether system parameter reaches default defrost condition, first Execution unit when the judging result of the first judging unit is to be, close by control shut-off valve, and control electric heating part work is to accumulation of heat Device, which carries out heating, makes air conditioner defrost in a heating mode, so that refrigerant is abundant in the storage heater by being electrically heated part heating Heat is absorbed, improves the temperature for flowing to indoor heat exchanger refrigerant, and then guarantee good heating effect, meanwhile, by indoor heat exchange Device, which is migrated to the higher refrigerant of temperature of outdoor heat exchanger, is conducive to outdoor heat exchanger progress defrost, guarantees that outdoor heat exchanger is fast Fast, thorough defrost, avoiding four-way valve commutation from making air conditioner, defrost makes fluctuations in indoor temperature larger impact user in cooling mode Comfort level, effectively improve user's comforts of use, improve the satisfaction that user uses, and open by the first execution unit Dynamic second detection unit and the first recording unit；Accumulator outlet gas temperature T1, the first note are detected by second detection unit Record unit is long when reaching the first preset duration t1 at work, and the Outlet Gas Temperature that will test is recorded as T10, and second After preset duration t2, the Outlet Gas Temperature that will test is recorded as T1i, and second judgment unit judges whether T1i-T10 is greater than Fiducial temperature, when the judging result of second judgment unit is to be, control electric heating part stops working the second execution unit, controls Shut-off valve is opened, and control four-way valve commutation makes air conditioner defrost in cooling mode, so that in heat-storing material deficiency water shortage, defrost So that air conditioner is carried out defrost in cooling mode by four-way valve commutation in the case that effect is poor, and then guarantees air conditioner defrost Timeliness, validity, completeness, guarantee good defrosting effect, avoid defrosting effect poor and influence the heating of air conditioner Effect is effectively guaranteed good heating effect, guarantees that air conditioner can also operate normally progress in heat-storing material deficiency Defrosting promotes the usage experience of user, improves the satisfaction that user uses, while single in the second judgement by the second execution unit The judging result of member is when being, control water replanishing device work carries out moisturizing to storage heater, so that storage heater is in heat-storing material deficiency When can active moisturizing, supplement heat-storing material manually without user, promote the usage experience of user, examined by third detection unit The temperature T2 of storage heater, the moisturizing duration of the second recording unit records water replanishing device are surveyed, and reaches third in moisturizing duration and presets When duration t3, the thermograph of the storage heater that will test is T20, after the 4th preset duration t4, the storage heater that will test Thermograph be T2i, third judging unit judgement (T2i-T20)/t4 whether be less than or equal to preset value A, third execution unit When the judging result of third judging unit is to be, control water replanishing device stops moisturizing, and control four-way valve commutation makes air conditioner exist Defrost under heating mode returns to and restarts the first execution unit, so that the temperature rise speed of storage heater is less than or equal to preset value When, the heat-storing material of storage heater can be made sufficient in certain time by water replanishing device, air conditioner defrost in a heating mode, into One step guarantees good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, mention The usage experience of user is risen, the satisfaction that user uses is improved；Simultaneously by returning and controlling air conditioner in heating mode again Whether lower defrost enables water in the air conditioner heat-storing material of self-test in real time sufficient, it is good to replace defrost pattern guarantee in time Defrosting effect and heating effect, make air conditioner in heat-storing material in hydropenic situation can normal defrost, and water abundance In the case where change heating mode defrost into guarantee user's comforts of use, promote the usage experience of user.
In any of the above-described technical solution, it is preferable that further include: display unit, for working as the judgement of second judgment unit As a result it to push and showing water shortage moisturizing information when being, when the judging result of third judging unit, which is, is, pushes and shows benefit Water finishes information.
In the technical scheme, it pushes and shows when the judging result of second judgment unit is to be by display unit Water shortage moisturizing information, the heat-storing material for facilitating user to understand air conditioner accurately and in time lack water, so that user checks that moisturizing fills It sets and whether is capable of providing sufficient water so that air conditioner defrost in a heating mode, has simultaneously effective prompted user's air conditioner to work as Preceding defrost pattern is refrigeration mode defrost, is conducive to the work that user controls air conditioner according to the current defrost pattern of air conditioner State simultaneously increases and decreases clothing, to guarantee good heating effect, and then improves satisfaction and comfort level that user uses；Pass through display Unit pushes when the judging result of third judging unit is to be and shows that moisturizing finishes information, so that user is accurately and in time The water understood in air conditioner heat-storing material is sufficient, and the defrost pattern for effectively having prompted user's air conditioner current is heating mode Defrost is conducive to user and controls the working condition of air conditioner according to the current defrost pattern of air conditioner and increase and decrease clothing, to guarantee Good heating effect, and then improve satisfaction and comfort level that user uses.
In any of the above-described technical solution, it is preferable that the second execution unit is also used to the judgement knot when second judgment unit When fruit is no, the first recording unit is controlled by the Outlet Gas Temperature T1 that second detection unit detects and is recorded as T10 again.
In the technical scheme, first is controlled when the judging result of second judgment unit is no by the second execution unit The Outlet Gas Temperature T1 that second detection unit detects is recorded as T10 by recording unit again, so that after the second preset duration, By the way that Outlet Gas Temperature T1 is recorded as T1i, rejudges whether T1i-T10 is greater than fiducial temperature, continue real-time, circulation Whether detection heat-storing material lacks water, and controls air conditioner defrost in cooling mode, guaranteeization in time in the case where water shortage The timeliness and validity of frost, guarantee good defrosting effect, promote the usage experience of user.
In any of the above-described technical solution, it is preferable that third execution unit is also used to the judgement knot when third judging unit When fruit is no, the second recording unit is controlled by the temperature T2 for the storage heater that third detection unit detects and is recorded as T20 again.
In the technical scheme, through third execution unit when the judging result of third judging unit is no, control the The temperature T2 for the storage heater that third detection unit detects is recorded as T20 by two recording units again, so that in the 4th preset duration The temperature T2 of storage heater is recorded as T2i afterwards, can rejudge whether (T2i-T20)/t4 is less than or equal to preset value A, in turn The working condition for controlling water replanishing device, shut-off valve and electric heating part according to judging result in real time, makes air conditioner in heat-storing material Water it is sufficient in the case where so that air conditioner is carried out defrost with heating mode, and then avoid fluctuations in indoor temperature larger, effectively protect The comfort level that user uses air-conditioning has been demonstrate,proved, the usage experience of user is promoted.
In any of the above-described technical solution, it is preferable that the first execution unit further include: cut-off valve control unit, VCU, for working as The judging result of first judging unit is when being, control shut-off valve is closed；Timing unit, the duration that record shut-off valve is closed, and When duration reaches five preset durations, enabling signal is sent to electric heating part control unit；Electric heating part control unit, is used for According to enabling signal, electric heating part work is controlled, carrying out heating to storage heater makes air conditioner defrost in a heating mode.
In the technical scheme, by cut-off valve control unit, VCU, when the judging result of the first judging unit is to be, control is cut Only valve is closed, and timing unit records the duration that shut-off valve is closed, and when duration reaches five preset durations, to electric heating part control Unit processed sends enabling signal, and electric heating part control unit controls electric heating part work according to enabling signal and adds to storage heater Heat makes air conditioner defrost in a heating mode, so that air conditioner is meeting the defrost condition initial stage, first passes through storage heater in sky The heat stored under device heating mode is adjusted to carry out defrost, so that the heat of storage heater storage is utilized effectively, and pre- the 5th Storage heater is heated if controlling electric heating part work after duration, avoids electric heating part from working always waste of energy, effectively The energy has been saved, has avoided wasting, has reduced use cost, has improved the satisfaction that user uses.
In any of the above-described technical solution, it is preferable that when the first preset duration t1, the second preset duration t2, third are default Long t3, the 4th preset duration t4, the 5th preset duration t5 are at least one of: the relational expression of storage heater volume, heat-storing material Relational expression, fixed value.
In the technical scheme, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th preset Duration t4, the 5th preset duration t5 are at least one of but not limited to this: the pass of the relational expression of storage heater volume, heat-storing material It is formula, fixed value, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th preset duration t4, the 5th A variety of expression ways of preset duration t5 can satisfy the demand of different air conditioners, different accumulation of heat components and different user, be applicable in It is in extensive range.
In any of the above-described technical solution, it is preferable that fiducial temperature Δ T, preset value A are at least one of: storage heater The relational expression of volume, the relational expression of heat-storing material, the relational expression of the first preset duration t1, the relational expression of the second preset duration t2, Relational expression, the relational expression of the 4th preset duration t4, relational expression, the fixed value of the 5th preset duration t5 of third preset duration t3.
In the technical scheme, fiducial temperature Δ T, preset value A are at least one of but not limited to this: storage heater volume Relational expression, the relational expression of heat-storing material, the relational expression of the first preset duration t1, relational expression, the third of the second preset duration t2 The relational expression of preset duration t3, the relational expression of the 4th preset duration t4, relational expression, the fixed value of the 5th preset duration t5 are preset Temperature difference T, preset value A a variety of expression ways can satisfy the demand of different air conditioners, different accumulation of heat component and different user, It is applied widely.
In any of the above-described technical solution, it is preferable that system parameter is at least one of or combinations thereof: the temperature of storage heater Degree, the Outlet Gas Temperature of storage heater, the temperature of condenser, the runing time of compressor, the running frequency of compressor.
In the technical scheme, system parameter is at least one of or combinations thereof but not limited to this: the temperature of storage heater, The Outlet Gas Temperature of storage heater, the temperature of condenser, the runing time of compressor, the running frequency of compressor, system parameter A variety of expression-forms can satisfy the demand of different air conditioners and different user, it is applied widely.
In any of the above-described technical solution, the first preset duration t1 is 4 minutes, and the second preset duration t2 is 0.5 minute, in advance If temperature difference T is 50 DEG C, third preset duration t3 is 1 minute, and the 4th preset duration is 4 minutes, and preset value A is 10, and the 5th is pre- If when it is 2 minutes a length of.
In the technical scheme, air conditioner is when system parameter reaches default defrost condition in a heating mode, control cut-off Valve is closed, and control electric heating part work after the 2 minutes, so that air conditioner is meeting the defrost condition initial stage, first passes through storage The heat that hot device stores under air conditioner heat-production mode carries out defrost, so that the heat of storage heater storage is utilized effectively, keeps away Exempt from electric heating part to work always waste of energy, effectively saved the energy, avoided wasting, reduces use cost, while making cold Matchmaker fully absorbs heat in the storage heater by being electrically heated part heating, improves the temperature for flowing to indoor heat exchanger refrigerant, into And guarantee good heating effect, simultaneously as it is higher to migrate the temperature to outdoor heat exchanger refrigerant by indoor heat exchanger, so that Air conditioner can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to outdoor heat exchanger and carries out defrost, guarantees Outdoor heat exchanger is quick, thorough defrost, and avoiding four-way valve commutation from making air conditioner, defrost makes fluctuations in indoor temperature in cooling mode It is larger, and then improve user's comforts of use and satisfaction；By recording the operating time of electric heating part, and in electric heating part The Outlet Gas Temperature T1 of storage heater is recorded as T10 in 4 minutes by work, is recorded after 0.5 minute by the exit gas of storage heater Temperature T1 is recorded as T1i, judges whether T1i-T10 is greater than 50 DEG C of fiducial temperature, if so, control electric heating part stops working, controls Shut-off valve processed is opened, and control four-way valve commutation makes air conditioner defrost in cooling mode, so that changing in heat-storing material deficiency water shortage So that air conditioner is carried out defrost in cooling mode by four-way valve commutation in the case that white effect is poor, and then guarantees air conditioner Timeliness, the validity, completeness of frost, guarantee good defrosting effect, avoid defrosting effect poor and influence the system of air conditioner Thermal effect, is effectively guaranteed good heating effect, guarantee air conditioner can also be operated normally in heat-storing material deficiency into Row defrosting, promotes the usage experience of user, improves the satisfaction that user uses, meanwhile, control water replanishing device work is to storage heater Moisturizing is carried out, enables storage heater active moisturizing in heat-storing material deficiency, supplements heat-storing material manually without user, is promoted The usage experience of user；By recording the moisturizing duration of water replanishing device, the temperature T2 of storage heater is detected, and reach in moisturizing duration At 1 minute, the thermograph for the storage heater that will test is T20, after 4 minutes, the thermograph for the storage heater that will test For T2i, when the judging result whether (T2i-T20)/4 is less than or equal to preset value 10 is to be, control water replanishing device stops moisturizing, Control four-way valve commutation makes air conditioner defrost in a heating mode, returns and control shut-off valve is closed again, electric heating part work, Water replanishing device is set to keep the heat-storing material of storage heater sufficient in certain time, air conditioner defrost in a heating mode, further Guarantee good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, promoted and used The usage experience at family improves the satisfaction that user uses；Changed in a heating mode by returning and controlling air conditioner again simultaneously Whether frost enables water in the air conditioner heat-storing material of self-test in real time sufficient, replaces defrost pattern in time and guarantee good defrost Effect and heating effect, make air conditioner in heat-storing material in hydropenic situation can normal defrost, and in the feelings of water abundance Heating mode defrost is changed under condition into guarantee user's comforts of use, promotes the usage experience of user.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:
Fig. 1 is the system schematic of air conditioner in the embodiment of the present invention；
Fig. 2 a is the flow diagram of defrosting control method in one embodiment of the present of invention；
Fig. 2 b is the flow diagram of defrosting control method in another embodiment of the invention；
Fig. 3 a is the schematic block diagram of defrosting control system in one embodiment of the present of invention；
Fig. 3 b is the schematic block diagram of defrosting control system in another embodiment of the invention.
Wherein, the corresponding relationship between Fig. 1 appended drawing reference and component names are as follows:
100 air conditioners, 102 compressors, 104 indoor heat exchangers, 106 outdoor heat exchangers, 108 four-way valves, 110 throttling dresses It sets, 112 accumulation of heat components, 1122 storage heaters, 1124 electric heating parts, 114 shut-off valves.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.
Air conditioner, defrosting control method and defrost control according to some embodiments of the invention is described referring to Fig. 1 to Fig. 3 b System processed.
As shown in Figure 1, the invention proposes a kind of air conditioners 100, comprising: compressor 102；Indoor heat exchanger 104；It is outdoor Heat exchanger 106；Four-way valve 108 is arranged between indoor heat exchanger 104 and outdoor heat exchanger 106, and two of four-way valve 108 connect The air inlet and air outlet of mouth connection compressor 102, one end of the another two orifice indoor heat exchanger 104 of four-way valve 108 With one end of outdoor heat exchanger 106；The other end of heat exchanger 104 and outdoor heat exchanger 106 indoors is arranged in throttling set 110 The other end between；Accumulation of heat component 112 is arranged between four-way valve 108 and outdoor heat exchanger 106, and accumulation of heat component 112 includes storing Hot device 1122, water replanishing device, electric heating part 1124, the first temperature-detecting device and second temperature detection device, storage heater 1122 For accommodate include at least water heat-storing material, storage heater 1122 be provided with the import being connected with outdoor heat exchanger 106 and with The outlet that four-way valve 108 is connected, water replanishing device are connected with storage heater 1122, and electric heating part 1124 is arranged in storage heater 1122 On, the setting of the first temperature-detecting device is exported in storage heater 1122, for detecting Outlet Gas Temperature, second temperature detection device It is arranged on storage heater 1122, for detecting the temperature of storage heater 1122；Shut-off valve 114, setting are changed in four-way valve 108 with outdoor Between hot device 106, it is connected in parallel with accumulation of heat component 112.
Air conditioner 100 provided by the invention, by the way that accumulation of heat component is arranged between four-way valve 108 and outdoor heat exchanger 106 112, when air conditioner 100 reaches defrost condition in a heating mode, control shut-off valve 114 is closed, the work pair of electric heating part 1124 Storage heater 1122 is heated, so that storage heater 1122 stores heat by the heat-storing material accommodated, electric heating part 1124 is heated The heat that storage heater 1122 keeps heat-storing material storage sufficient, refrigerant is in the storage heater 1122 by being electrically heated the heating of part 1124 Heat is fully absorbed, improves the temperature for flowing to 104 refrigerant of indoor heat exchanger, and then guarantee good heating effect, simultaneously as It is higher that temperature to the refrigerant of outdoor heat exchanger 106 is migrated by indoor heat exchanger 104, so that air conditioner 100 is in a heating mode Defrost can also be carried out, and the refrigerant of higher temperature is conducive to outdoor heat exchanger 106 and carries out defrost, guarantees that outdoor heat exchanger 106 is fast Fast, thorough defrost avoids the commutation of four-way valve 108 from making the defrost fluctuations in indoor temperature larger impact in cooling mode of air conditioner 100 The comfort level of user effectively improves user's comforts of use, improves the satisfaction that user uses；By being arranged in storage heater The Outlet Gas Temperature of the temperature-detecting device detection storage heater 1122 of 1122 outlets, and Outlet Gas Temperature within a preset time Control electric heating part 1124 stops working when difference is greater than fiducial temperature, and control shut-off valve 114 is opened, and the commutation of four-way valve 108 makes sky The defrost in cooling mode of device 100 is adjusted, so that changing in the case where heat-storing material deficiency defrosting effect is poor by four-way valve 108 To making air conditioner 100 carry out defrost in cooling mode, and then guarantee the timeliness of 100 defrost of air conditioner, validity, thoroughly Property, guarantee good defrosting effect, avoid defrosting effect poor and influence the heating effect of air conditioner 100, is effectively guaranteed Good heating effect guarantees that air conditioner 100 can operate normally and defrosts, promotes the usage experience of user, improve user The satisfaction used；Water replanishing device work is controlled simultaneously, moisturizing is carried out to storage heater 1122, so that storage heater 1122 is in accumulation of heat material When material is insufficient can active moisturizing, supplement heat-storing material manually without user, promote the usage experience of user, pass through record moisturizing The moisturizing duration of device, temperature-detecting device detect storage heater 1122 temperature, and in preset duration storage heater 1122 temperature When spending pace of change less than or equal to preset value, control water replanishing device stops moisturizing, and the control commutation of four-way valve 108 makes air conditioner 100 Defrost in a heating mode, returns and control shut-off valve 114 is closed again, and electric heating part 1124 works, and makes water replanishing device one Fixing time can make the heat-storing material of storage heater 1122 sufficient, the defrost in a heating mode of air conditioner 100, be further ensured that good Defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, promote the use of user Experience improves the satisfaction that user uses.
Further, the shut-off valve 114 and accumulation of heat component by being arranged between four-way valve 108 and outdoor heat exchanger 106 112 are connected in parallel, and the working condition for being conducive to control accumulation of heat component 112 or shut-off valve 114 is to meet air conditioner 100 with different Mode operation, avoiding the need for shutting down influences the comfort that user uses to meet air conditioner 100 with different mode operations, into And ensure that air conditioner 100 in the process of running can switch different modes, promote the usage experience of user, improving user makes Satisfaction.
In addition, the air conditioner 100 in above-described embodiment provided by the invention can also have following additional technical feature:
In the above-mentioned technical solutions, it is preferable that further include: the top of water replanishing device, moisturizing dress is arranged in bottom plate of outdoor unit It sets and is connected with bottom plate of outdoor unit.
In the technical scheme, by the way that bottom plate of outdoor unit to be arranged in the top of water replanishing device, water replanishing device and outdoor unit Chassis is connected, so that water replanishing device can be remained using outdoor unit defrost on bottom plate of outdoor unit when heat-storing material lacks water Water supplement heat-storing material, saved the energy, efficiently used the remaining water of defrost, at the same simplify water replanishing device confession The setting of water-bound, it is compact-sized, meet the needs of product miniaturization, it is applied widely.
In the above-mentioned technical solutions, it is preferable that further include: drain pan of indoor machine, water replanishing device and drain pan of indoor machine phase Connection.
In the technical scheme, by the way that water replanishing device is connected with drain pan of indoor machine, so that lacking in heat-storing material When water, water replanishing device can supplement heat-storing material using the water in drain pan of indoor machine, saved the energy, made drain pan of indoor machine In water efficiently used, while simplifying the setting of water replanishing device water-supply structure, it is compact-sized, meet product miniaturization Demand, it is applied widely
In the above-mentioned technical solutions, it is preferable that the first temperature-detecting device and second temperature detection device are temperature sensing Device.
In the technical scheme, the first temperature-detecting device and second temperature detection device are temperature sensor, and temperature passes Cost is relatively low for sensor, compact-sized, sensitivity is higher, the outlet of storage heater 1122 can easily be arranged in, and meet accumulation of heat The structure of device 1122, further, the first temperature-detecting device and second temperature detection device may be its met the requirements His temperature-detecting device.
In any of the above-described technical solution, it is preferable that throttling set 110 is electric expansion valve.
In the technical scheme, throttling set 110 is electric expansion valve, so that according to the different operation moulds of air conditioner 100 Formula is controlled electric expansion valve and is opened with different aperture threshold values, and then meets the different need to coolant quantity of 100 system of air conditioner It asks, it is applied widely, and can guarantee good heating effect and defrosting effect, and then improve the satisfaction that user uses. Further, air conditioner 100 in a heating mode defrost when, electric expansion valve with maximum opening threshold value unlatching, to guarantee abundance Coolant quantity carry out energy exchange, guarantee good defrosting effect and heating effect, improve the satisfaction that user uses.
As shown in Figure 2 a, embodiment according to the second aspect of the invention, it is also proposed that a kind of defrosting control method, such as Fig. 2 a Shown in the defrosting control method flow diagram of one embodiment of the present of invention include:
Step S202, air conditioner in a heating mode, detect the system parameter of air conditioner；
Step S204, judges whether system parameter reaches default defrost condition；
Step S206, if the judging result of step S204 be it is yes, control shut-off valve close, control electric heating part work to storage Hot device, which carries out heating, makes air conditioner defrost in a heating mode；
Step S208 records the operating time of electric heating part, detects Outlet Gas Temperature T1, and length reaches first at work When preset duration t1, detected Outlet Gas Temperature T1 is recorded as T10；
Step S210, and after the second preset duration t2, detected Outlet Gas Temperature T1 is recorded as T1i；
Step S212, judges whether T1i-T10 is greater than fiducial temperature Δ T；
Step S214, if the judging result of step S212 be it is yes, control electric heating part stop working, control shut-off valve open It opens, the work of control water replanishing device carries out moisturizing to storage heater, and control four-way valve commutation makes air conditioner defrost in cooling mode；
Step S216 records the moisturizing duration of water replanishing device, detects the temperature T2 of storage heater, and reach in moisturizing duration When three preset duration t3, the temperature T2 of detected storage heater is recorded as T20；
Step S218, and after the 4th preset duration t4, the temperature T2 of detected storage heater is recorded as T2i；
Whether step S220, judgement (T2i-T20)/t4 are less than or equal to preset value A；
Step S222, if the judging result of step S220d be it is yes, control water replanishing device stop moisturizing, control four-way valve change To making air conditioner defrost in a heating mode, return step S206.
The defrosting control method that the embodiment of second aspect of the present invention provides, in a heating mode by air conditioner, detection The system parameter of air conditioner, and when system parameter reaches default defrost condition, control shut-off valve is closed, and electric heating part work is controlled Make that storage heater is carried out to heat to make air conditioner defrost in a heating mode, so that refrigerant is in the accumulation of heat by being electrically heated part heating Heat is fully absorbed when device, improves the temperature for flowing to indoor heat exchanger refrigerant, and then guarantee good heating effect, meanwhile, by Indoor heat exchanger, which is migrated to the higher refrigerant of temperature of outdoor heat exchanger, is conducive to outdoor heat exchanger progress defrost, guarantees that outdoor is changed Hot device is quick, thorough defrost, and avoiding four-way valve commutation from making air conditioner, defrost makes the larger shadow of fluctuations in indoor temperature in cooling mode The comfort level for ringing user effectively improves user's comforts of use, improves the satisfaction that user uses；By detecting storage heater Outlet Gas Temperature T1, when length reaches the first preset duration t1 at work, the Outlet Gas Temperature that will test is recorded as T10, and after the second preset duration t2, the Outlet Gas Temperature that will test is recorded as T1i, and when whether T1i-T10 is greater than The judging result of fiducial temperature is to be stopped working when being by controlling electric heating part, and control shut-off valve is opened, and control four-way valve changes To air conditioner defrost in cooling mode is made, so that passing through four in the case where heat-storing material deficiency water shortage defrosting effect is poor Port valve commutation makes air conditioner carry out defrost in cooling mode, and then guarantees the timeliness of air conditioner defrost, validity, thoroughly Property, guarantee good defrosting effect, avoid defrosting effect poor and influence the heating effect of air conditioner, is effectively guaranteed good Heating effect, guarantee that air conditioner can also be operated normally in heat-storing material deficiency and be defrosted, promote user uses body It tests, improves the satisfaction that user uses, while controlling water replanishing device work and moisturizing is carried out to storage heater, so that storage heater is in accumulation of heat When material deficiency can active moisturizing, supplement heat-storing material manually without user, promote the usage experience of user, pass through record mend The moisturizing duration of water installations detects the temperature T2 of storage heater, and when moisturizing duration reaches third preset duration t3, will test The thermograph of storage heater be T20, after the 4th preset duration t4, the thermograph of the storage heater that will test is T2i, (T2i-T20) judging result whether/t4 is less than or equal to preset value A is when being, to illustrate that storage heater temperature changing speed reaches pre- If value, the water in heat-storing material is sufficient, and control water replanishing device stops moisturizing, and control four-way valve commutation makes air conditioner in heating mode Lower defrost, returns and control shut-off valve is closed again, electric heating part work, so that the temperature rise speed of storage heater is less than or equal to default When value, the heat-storing material of storage heater can be made sufficient in certain time by water replanishing device, air conditioner defrost in a heating mode, Be further ensured that good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, The usage experience of user is promoted, the satisfaction that user uses is improved；Simultaneously by returning and controlling air conditioner in heating mould again Whether defrost under formula enables water in the air conditioner heat-storing material of self-test in real time sufficient, replaces defrost pattern in time and guarantee well Defrosting effect and heating effect, make air conditioner in heat-storing material in hydropenic situation can normal defrost, and filled in water Heating mode defrost is changed in the case where foot into guarantee user's comforts of use, promotes the usage experience of user.
The defrosting control method flow diagram of one embodiment of the present of invention as shown in Figure 2 a, further includes:
Step S224 is pushed when the judging result of step S212, which is, is and is shown water shortage moisturizing information；
Step S226 is pushed when the judging result of step S220, which is, is and is shown that moisturizing finishes information.
Defrosting control method provided by the invention is by the judging result for whether being greater than fiducial temperature Δ T in T1i-T10 When being, pushing and show water shortage moisturizing information, the heat-storing material for facilitating user to understand air conditioner accurately and in time lacks water, with Just user checks whether water replanishing device is capable of providing sufficient water so that air conditioner defrost in a heating mode, simultaneously effective mentions Show that the current defrost pattern of user's air conditioner is refrigeration mode defrost, has been conducive to user according to the current defrost pattern of air conditioner It controls the working condition of air conditioner and increases and decreases clothing, to guarantee good heating effect, and then improve the satisfaction that user uses And comfort level；By whether being less than or equal to preset value A in judgement (T2i-T20)/t4, pushes and show that moisturizing finishes information, make User understands the abundance of the water in air conditioner heat-storing material accurately and in time, effectively prompted user's air conditioner current Defrost pattern is heating mode defrost, is conducive to the working condition that user controls air conditioner according to the current defrost pattern of air conditioner And increase and decrease clothing, to guarantee good heating effect, and then improve satisfaction and comfort level that user uses.
The defrosting control method flow diagram of one embodiment of the present of invention as shown in Figure 2 a, further includes:
Step S228 records Outlet Gas Temperature T1 detected when the judging result of step S212 is no again For T10, and return step S210.
Defrosting control method provided by the invention, it is pre- by whether being greater than in accumulator outlet gas temperature differential T1i-T10 If the judging result of the temperature difference is no, Outlet Gas Temperature T1 detected is recorded as T10 again, so that when second is default After length, by the way that Outlet Gas Temperature T1 is recorded as T1i, rejudge whether T1i-T10 is greater than fiducial temperature, continue in real time, Whether the detection heat-storing material of circulation lacks water, and controls air conditioner defrost in cooling mode in time in the case where water shortage, The timeliness and validity for guaranteeing defrost, guarantee good defrosting effect, promote the usage experience of user.Sheet as shown in Figure 2 a The defrosting control method flow diagram of one embodiment of invention, further includes:
Step S230 remembers the temperature T2 of detected storage heater when the judging result of step S220 is no again Recording is T20, and return step S28.
Defrosting control method provided by the invention, by the judgement for whether being less than or equal to preset value A in (T2i-T20)/t4 When being as a result no, the temperature T2 of detected storage heater is recorded as T20 again, so that by accumulation of heat after the 4th preset duration The temperature T2 of device is recorded as T2i, can rejudge whether (T2i-T20)/t4 is less than or equal to preset value A, and then real-time basis Judging result controls the working condition of water replanishing device, shut-off valve and electric heating part, keeps water of the air conditioner in heat-storing material sufficient In the case where so that air conditioner is carried out defrost with heating mode, and then avoid fluctuations in indoor temperature larger, be effectively guaranteed user Using the comfort level of air-conditioning, the usage experience of user is promoted.
The defrosting control method flow diagram of another embodiment of the present invention as shown in Figure 2 b, further includes:
Step S2062, control shut-off valve is closed, after the 5th preset duration；
Step S2064, the work of control electric heating part, which carries out heating to storage heater, makes air conditioner defrost in a heating mode.
Defrosting control method provided by the invention is closed by control shut-off valve, and after the 5th preset duration, control electricity adds Warmware work, which carries out heating to storage heater, makes air conditioner defrost in a heating mode, so that air conditioner is to meet defrost condition initial Stage first passes through the heat that storage heater stores under air conditioner heat-production mode and carries out defrost, so that the heat of storage heater storage obtains To effective use, and electric heating part work is controlled after the 5th preset duration, storage heater is heated, avoid electric heating part one Straight work waste of energy, has effectively saved the energy, has avoided wasting, reduced use cost, improves the satisfaction that user uses.
In one embodiment of the invention, it is preferable that the first preset duration t1, the second preset duration t2, third are default Duration t3, the 4th preset duration t4, the 5th preset duration t5 are at least one of: the relational expression of storage heater volume, accumulation of heat material Relational expression, the fixed value of material.
In this embodiment, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th it is default when Long t4, the 5th preset duration t5 are at least one of but not limited to this: relational expression, the relationship of heat-storing material of storage heater volume Formula, fixed value, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th preset duration t4, the 5th are in advance If a variety of expression ways of duration t5 can satisfy the demand of different air conditioners, different accumulation of heat components and different user, it is applicable in model It encloses extensively.
In one embodiment of the invention, it is preferable that fiducial temperature Δ T, preset value A are at least one of: accumulation of heat Relational expression, the relational expression of heat-storing material, the relational expression of the first preset duration t1, the relationship of the second preset duration t2 of device volume Formula, the relational expression of third preset duration t3, relational expression, the relational expression of the 5th preset duration t5, fixation of the 4th preset duration t4 Value.
In this embodiment, fiducial temperature Δ T, preset value A are at least one of but not limited to this: storage heater volume Relational expression, the relational expression of heat-storing material, the relational expression of the first preset duration t1, relational expression, the third of the second preset duration t2 are pre- If the relational expression of duration t3, the relational expression of the 4th preset duration t4, relational expression, the fixed value of the 5th preset duration t5, temperature is preset Poor Δ T, preset value A a variety of expression ways can satisfy the demand of different air conditioners, different accumulation of heat component and different user, fit With in extensive range.
In one embodiment of the invention, it is preferable that system parameter is at least one of or combinations thereof: storage heater Temperature, the Outlet Gas Temperature of storage heater, the temperature of condenser, the runing time of compressor, the running frequency of compressor.
In this embodiment, system parameter is at least one of or combinations thereof but not limited to this: the temperature of storage heater stores The Outlet Gas Temperature of hot device, the temperature of condenser, the runing time of compressor, the running frequency of compressor, system parameter A variety of expression-forms can satisfy the demand of different air conditioners and different user, applied widely.
In one embodiment of the invention, it is preferable that the first preset duration t1 is 4 minutes, and the second preset duration t2 is 0.5 minute, fiducial temperature Δ T was 50 DEG C, and third preset duration t3 is 1 minute, and the 4th preset duration is 4 minutes, and preset value A is 10, the 5th preset duration is 2 minutes.
In this embodiment, air conditioner controls shut-off valve when system parameter reaches default defrost condition in a heating mode It closes, and control electric heating part work after the 2 minutes, so that air conditioner is meeting the defrost condition initial stage, first passes through accumulation of heat The heat that device stores under air conditioner heat-production mode carries out defrost, so that the heat of storage heater storage is utilized effectively, avoids Electric heating part works always waste of energy, has effectively saved the energy, has avoided wasting, and reduces use cost, while making refrigerant Heat is fully absorbed in the storage heater by being electrically heated part heating, improves the temperature for flowing to indoor heat exchanger refrigerant, in turn Guarantee good heating effect, simultaneously as it is higher to migrate the temperature to outdoor heat exchanger refrigerant by indoor heat exchanger, makes to have leisure Adjust device that can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to outdoor heat exchanger and carries out defrost, guarantees room External heat exchanger is quick, thorough defrost, avoid four-way valve commutation make air conditioner in cooling mode defrost make fluctuations in indoor temperature compared with Greatly, and then user's comforts of use and satisfaction are improved；By recording the operating time of electric heating part, and in electric heating part work Make the Outlet Gas Temperature T1 of storage heater to be recorded as T10 in 4 minutes, record after 0.5 minute by the body temperature of working off one's feeling vent one's spleen of storage heater Degree T1 is recorded as T1i, judges whether T1i-T10 is greater than 50 DEG C of fiducial temperature, if so, control electric heating part stops working, controls Shut-off valve is opened, and control four-way valve commutation makes air conditioner defrost in cooling mode, so that in heat-storing material deficiency water shortage, defrost So that air conditioner is carried out defrost in cooling mode by four-way valve commutation in the case that effect is poor, and then guarantees air conditioner defrost Timeliness, validity, completeness, guarantee good defrosting effect, avoid defrosting effect poor and influence the heating of air conditioner Effect is effectively guaranteed good heating effect, guarantees that air conditioner can also operate normally progress in heat-storing material deficiency Defrosting, promotes the usage experience of user, improves the satisfaction that user uses, meanwhile, the work of control water replanishing device to storage heater into Row moisturizing, enables storage heater active moisturizing in heat-storing material deficiency, supplements heat-storing material manually without user, is promoted and used The usage experience at family；By recording the moisturizing duration of water replanishing device, the temperature T2 of storage heater is detected, and reach 1 in moisturizing duration When minute, the thermograph for the storage heater that will test is T20, and after 4 minutes, the thermograph for the storage heater that will test is T2i, when the judging result whether (T2i-T20)/4 is less than or equal to preset value 10 is to be, control water replanishing device stops moisturizing, control Four-way valve commutation processed makes air conditioner defrost in a heating mode, returns and control shut-off valve is closed again, and electric heating part work makes Water replanishing device can make the heat-storing material of storage heater sufficient in certain time, and air conditioner defrost in a heating mode is further protected Demonstrate,prove good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, promote user Usage experience, improve the satisfaction that uses of user；Pass through simultaneously and return to and control again air conditioner defrost in a heating mode, Enable water in the air conditioner heat-storing material of self-test in real time whether sufficient, replaces defrost pattern in time and guarantee good defrosting effect And heating effect, make air conditioner in heat-storing material in hydropenic situation can normal defrost, and water abundance in the case where Heating mode defrost is changed into guarantee user's comforts of use, promotes the usage experience of user.
As shown in Figure 3a, embodiment in accordance with a further aspect of the present invention, it is also proposed that a kind of defrosting control system 300 is used In air conditioner, air conditioner is the air conditioner of any of the above-described technical solution, and defrosting control system 300 includes: first detection unit 302, in a heating mode for air conditioner, detect the system parameter of air conditioner；First judging unit 304, for judging system Whether parameter reaches default defrost condition；First execution unit 306 is yes for the judging result when the first judging unit 304 When, control shut-off valve is closed, and the work of control electric heating part, which carries out heating to storage heater, makes air conditioner defrost in a heating mode, is opened Dynamic second detection unit 308 and the first recording unit 310；Second detection unit 308, for detecting Outlet Gas Temperature T1；The One recording unit 310, it is long when reaching the first preset duration t1 at work for recording the operating time of electric heating part, by the The Outlet Gas Temperature T1 of two detection units 308 detection is recorded as T10, and after the second preset duration t2, and the second detection is single The Outlet Gas Temperature T1 of 308 detection detection of member is recorded as T1i；Second judgment unit 312, for judging whether Ti-T0 is greater than Fiducial temperature；Second execution unit 314 is when being for the judging result in second judgment unit 312, and control electric heating part stops It only works, control shut-off valve is opened, and the work of control water replanishing device carries out moisturizing to storage heater, and control four-way valve commutation makes air conditioner Defrost in cooling mode, and start third detection unit 316 and the second recording unit 318；Third detection unit 316, is used for Detect the temperature T2 of storage heater；Second recording unit 318 is up to for recording the moisturizing duration of water replanishing device, and in moisturizing When to third preset duration t3, the temperature T2 for the storage heater that third detection unit 316 detects is recorded as T20, and the 4th After preset duration t4, the temperature T2 for the storage heater that third detection unit 316 detects is recorded as T2i；Third judging unit 320, for judging whether (T2i-T20)/t4 is less than or equal to preset value A；Third execution unit 322, it is single for judging in third The judging result of member 320 is when being, control water replanishing device stops moisturizing, and control four-way valve commutation makes air conditioner in a heating mode Defrost, and return and restart the first execution unit 306.
The defrosting control system 300 that the embodiment of further aspect of the present invention provides, by first detection unit 302 in air-conditioning Under device heating mode, the system parameter of air conditioner is detected, the first judging unit 304 judges whether system parameter reaches default defrost Condition, the first execution unit 306 when the judging result of the first judging unit 304 is is, close by control shut-off valve, and control electricity adds Warmware work, which carries out heating to storage heater, makes air conditioner defrost in a heating mode, so that refrigerant is by being electrically heated part heating Storage heater when fully absorb heat, improve the temperature for flowing to indoor heat exchanger refrigerant, and then guarantee good heating effect, together When, outdoor heat exchanger is conducive to by the higher refrigerant of temperature that indoor heat exchanger is migrated to outdoor heat exchanger and carries out defrost, is guaranteed Outdoor heat exchanger is quick, thorough defrost, and avoiding four-way valve commutation from making air conditioner, defrost makes fluctuations in indoor temperature in cooling mode The comfort level of larger impact user, effectively improves user's comforts of use, improves the satisfaction that user uses, and passes through the One execution unit 306 starts second detection unit 308 and the first recording unit 310；Accumulation of heat is detected by second detection unit 308 Device Outlet Gas Temperature T1, the long outlet that when reaching the first preset duration t1, will test at work of the first recording unit 310 Gas temperature is recorded as T10, and after the second preset duration t2, the Outlet Gas Temperature that will test is recorded as T1i, and second sentences Disconnected unit 312 judges whether T1i-T10 is greater than fiducial temperature, judgement knot of second execution unit 314 in second judgment unit 312 Fruit is when being, control electric heating part stops working, and control shut-off valve is opened, and control four-way valve commutation makes air conditioner in refrigeration mode Lower defrost, so that making air conditioner by four-way valve commutation in the case that defrosting effect is poor in heat-storing material deficiency water shortage Defrost is carried out under cold mode, and then guarantees timeliness, validity, the completeness of air conditioner defrost, guarantees good defrosting effect, It avoids defrosting effect poor and influences the heating effect of air conditioner, be effectively guaranteed good heating effect, guarantee air conditioner It can also operate normally and defrost in heat-storing material deficiency, promote the usage experience of user, improve the satisfaction that user uses Degree, while through the second execution unit 314 when the judging result of second judgment unit 312 is to be, control water replanishing device work Moisturizing is carried out to storage heater, enables storage heater active moisturizing in heat-storing material deficiency, supplements accumulation of heat manually without user Material promotes the usage experience of user, and the temperature T2 of storage heater, the second recording unit 318 are detected by third detection unit 316 The moisturizing duration of water replanishing device is recorded, and when moisturizing duration reaches third preset duration t3, the temperature for the storage heater that will test Degree is recorded as T20, and after the 4th preset duration t4, the thermograph for the storage heater that will test is T2i, third judging unit Whether 320 judgement (T2i-T20)/t4 are less than or equal to preset value A, judgement of the third execution unit 322 in third judging unit 320 As a result for when being, control water replanishing device stops moisturizing, control four-way valve commutation makes air conditioner defrost in a heating mode, returns simultaneously The first execution unit 306 is restarted, when so that the temperature rise speed of storage heater being less than or equal to preset value, by water replanishing device one Fixing time can make the heat-storing material of storage heater sufficient, and air conditioner defrost in a heating mode is further ensured that good defrost Effect and good heating effect, improve user in a heating mode defrost when comfort level, promote the usage experience of user, mention The satisfaction that high user uses；Simultaneously by returning and control air conditioner defrost in a heating mode again, enable air conditioner Whether water is sufficient in enough real-time self-test heat-storing materials, replaces defrost pattern in time and guarantees good defrosting effect and heating effect, Make air conditioner in heat-storing material in hydropenic situation can normal defrost, and water abundance in the case where change heating mode into Defrost promotes the usage experience of user to guarantee user's comforts of use.
Defrosting control system 300 as shown in Figure 3a, it is preferable that further include: display unit 324, for when the second judgement The judging result of unit 312 is when being, water shortage moisturizing information to be pushed and show, when the judging result of third judging unit 320 is When being, pushes and show that moisturizing finishes information.
Defrosting control system 300 provided by the invention, by display unit 324 second judgment unit 312 judgement knot Fruit is when being, to push and show water shortage moisturizing information, the heat-storing material for facilitating user to understand air conditioner accurately and in time lacks Water, so that user checks whether water replanishing device is capable of providing sufficient water so that air conditioner defrost in a heating mode, has simultaneously The defrost pattern for having prompted user's air conditioner current to effect is refrigeration mode defrost, is conducive to user according to currentization of air conditioner The working condition of white scheme control air conditioner simultaneously increases and decreases clothing, to guarantee good heating effect, and then improves what user used Satisfaction and comfort level；Through display unit 324 when the judging result of third judging unit 320 is to be, pushes and show benefit Water finishes information, so that user understands the abundance of the water in air conditioner heat-storing material accurately and in time, has effectively prompted user The current defrost pattern of air conditioner is heating mode defrost, is conducive to user according to the current defrost pattern of air conditioner and controls air-conditioning The working condition of device simultaneously increases and decreases clothing, to guarantee good heating effect, and then improves satisfaction and comfort level that user uses.
Defrosting control system 300 as shown in Figure 3a, it is preferable that the second execution unit 314 is also used to when the second judgement is single When the judging result of member 312 is no, the Outlet Gas Temperature that the first recording unit 310 detects second detection unit 308 is controlled T1 is recorded as T10 again.
Defrosting control system 300 provided by the invention passes through the second sentencing in second judgment unit 312 of execution unit 314 Disconnected result controls the first recording unit 310 when being no and records the Outlet Gas Temperature T1 that second detection unit 308 detects again For T10, so that, by the way that Outlet Gas Temperature T1 is recorded as T1i, whether rejudging T1i-T10 after the second preset duration Greater than fiducial temperature, continue whether real-time, circulation detection heat-storing material lacks water, and control is empty in time in the case where water shortage Device defrost in cooling mode is adjusted, guarantees the timeliness and validity of defrost, guarantees good defrosting effect, promote making for user With experience.
Defrosting control system 300 as shown in Figure 3a, it is preferable that third execution unit 322 is also used to when third judgement is single When the judging result of member 320 is no, the temperature for the storage heater that the second recording unit 318 of control detects third detection unit 316 T2 is recorded as T20 again.
Defrosting control system 300 provided by the invention passes through the sentencing in third judging unit 320 of third execution unit 322 When disconnected result is no, the second recording unit 318 of control records the temperature T2 for the storage heater that third detection unit 316 detects again (T2i-T20)/t4 can be rejudged so that the temperature T2 of storage heater is recorded as T2i after the 4th preset duration for T20 Whether it is less than or equal to preset value A, and then controls the work shape of water replanishing device, shut-off valve and electric heating part according to judging result in real time State makes to make air conditioner carry out defrost with heating mode in the case that water of the air conditioner in heat-storing material is sufficient, and then avoids room Interior temperature fluctuation is larger, is effectively guaranteed the comfort level that user uses air-conditioning, promotes the usage experience of user.
Defrosting control system 300 as shown in Figure 3b, it is preferable that the first execution unit 306 further include: shut-off valve control is single Member 3062, for when the judging result of the first judging unit 304, which is, is, control shut-off valve to be closed；Timing unit 3064, record The duration that shut-off valve is closed, and when duration reaches five preset durations, starting letter is sent to electric heating part control unit 3066 Number；Electric heating part control unit 3066, for controlling electric heating part work according to enabling signal, carrying out heating to storage heater makes Air conditioner defrost in a heating mode.
Defrosting control system 300 provided by the invention, by cut-off valve control unit, VCU 3062 in the first judging unit 304 Judging result is that control shut-off valve is closed when being, timing unit 3064 records the duration that shut-off valve is closed, and reaches the in duration When five preset durations, enabling signal is sent to electric heating part control unit 3066, electric heating part control unit 3066 is according to starting Signal control electric heating part work, which carries out heating to storage heater, makes air conditioner defrost in a heating mode, so that air conditioner is meeting The defrost condition initial stage first passes through the heat that storage heater stores under air conditioner heat-production mode and carries out defrost, so that storage heater The heat of storage is utilized effectively, and controls electric heating part work after the 5th preset duration and heat to storage heater, keeps away Exempt from electric heating part to work always waste of energy, effectively saved the energy, avoided wasting, reduce use cost, improving user makes Satisfaction.
In one embodiment of the invention, it is preferable that the first preset duration t1, the second preset duration t2, third are default Duration t3, the 4th preset duration t4, the 5th preset duration t5 are at least one of: the relational expression of storage heater volume, accumulation of heat material Relational expression, the fixed value of material.
In this embodiment, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th it is default when Long t4, the 5th preset duration t5 are at least one of but not limited to this: relational expression, the relationship of heat-storing material of storage heater volume Formula, fixed value, the first preset duration t1, the second preset duration t2, third preset duration t3, the 4th preset duration t4, the 5th are in advance If a variety of expression ways of duration t5 can satisfy the demand of different air conditioners, different accumulation of heat components and different user, it is applicable in model It encloses extensively.
In one embodiment of the invention, it is preferable that fiducial temperature Δ T, preset value A are at least one of: accumulation of heat Relational expression, the relational expression of heat-storing material, the relational expression of the first preset duration t1, the relationship of the second preset duration t2 of device volume Formula, the relational expression of third preset duration t3, relational expression, the relational expression of the 5th preset duration t5, fixation of the 4th preset duration t4 Value.
In this embodiment, fiducial temperature Δ T, preset value A are at least one of but not limited to this: storage heater volume Relational expression, the relational expression of heat-storing material, the relational expression of the first preset duration t1, relational expression, the third of the second preset duration t2 are pre- If the relational expression of duration t3, the relational expression of the 4th preset duration t4, relational expression, the fixed value of the 5th preset duration t5, temperature is preset Poor Δ T, preset value A a variety of expression ways can satisfy the demand of different air conditioners, different accumulation of heat component and different user, fit With in extensive range.
In one embodiment of the invention, it is preferable that system parameter is at least one of or combinations thereof: storage heater Temperature, the Outlet Gas Temperature of storage heater, the temperature of condenser, the runing time of compressor, the running frequency of compressor.
In this embodiment, system parameter is at least one of or combinations thereof but not limited to this: the temperature of storage heater stores The Outlet Gas Temperature of hot device, the temperature of condenser, the runing time of compressor, the running frequency of compressor, system parameter A variety of expression-forms can satisfy the demand of different air conditioners and different user, applied widely.
In one embodiment of the invention, the first preset duration t1 is 4 minutes, and the second preset duration t2 is 0.5 minute, Fiducial temperature Δ T is 50 DEG C, and third preset duration t3 is 1 minute, and the 4th preset duration is 4 minutes, and preset value A is the 10, the 5th Preset duration is 2 minutes.
In this embodiment, air conditioner controls shut-off valve when system parameter reaches default defrost condition in a heating mode It closes, and control electric heating part work after the 2 minutes, so that air conditioner is meeting the defrost condition initial stage, first passes through accumulation of heat The heat that device stores under air conditioner heat-production mode carries out defrost, so that the heat of storage heater storage is utilized effectively, avoids Electric heating part works always waste of energy, has effectively saved the energy, has avoided wasting, and reduces use cost, while making refrigerant Heat is fully absorbed in the storage heater by being electrically heated part heating, improves the temperature for flowing to indoor heat exchanger refrigerant, in turn Guarantee good heating effect, simultaneously as it is higher to migrate the temperature to outdoor heat exchanger refrigerant by indoor heat exchanger, makes to have leisure Adjust device that can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to outdoor heat exchanger and carries out defrost, guarantees room External heat exchanger is quick, thorough defrost, avoid four-way valve commutation make air conditioner in cooling mode defrost make fluctuations in indoor temperature compared with Greatly, and then user's comforts of use and satisfaction are improved；By recording the operating time of electric heating part, and in electric heating part work Make the Outlet Gas Temperature T1 of storage heater to be recorded as T10 in 4 minutes, record after 0.5 minute by the body temperature of working off one's feeling vent one's spleen of storage heater Degree T1 is recorded as T1i, judges whether T1i-T10 is greater than 50 DEG C of fiducial temperature, if so, control electric heating part stops working, controls Shut-off valve is opened, and control four-way valve commutation makes air conditioner defrost in cooling mode, so that in heat-storing material deficiency water shortage, defrost So that air conditioner is carried out defrost in cooling mode by four-way valve commutation in the case that effect is poor, and then guarantees air conditioner defrost Timeliness, validity, completeness, guarantee good defrosting effect, avoid defrosting effect poor and influence the heating of air conditioner Effect is effectively guaranteed good heating effect, guarantees that air conditioner can also operate normally progress in heat-storing material deficiency Defrosting, promotes the usage experience of user, improves the satisfaction that user uses, meanwhile, the work of control water replanishing device to storage heater into Row moisturizing, enables storage heater active moisturizing in heat-storing material deficiency, supplements heat-storing material manually without user, is promoted and used The usage experience at family；By recording the moisturizing duration of water replanishing device, the temperature T2 of storage heater is detected, and reach 1 in moisturizing duration When minute, the thermograph for the storage heater that will test is T20, and after 4 minutes, the thermograph for the storage heater that will test is T2i, when the judging result whether (T2i-T20)/4 is less than or equal to preset value 10 is to be, control water replanishing device stops moisturizing, control Four-way valve commutation processed makes air conditioner defrost in a heating mode, returns and control shut-off valve is closed again, and electric heating part work makes Water replanishing device can make the heat-storing material of storage heater sufficient in certain time, and air conditioner defrost in a heating mode is further protected Demonstrate,prove good defrosting effect and good heating effect, improve user in a heating mode defrost when comfort level, promote user Usage experience, improve the satisfaction that uses of user；Pass through simultaneously and return to and control again air conditioner defrost in a heating mode, Enable water in the air conditioner heat-storing material of self-test in real time whether sufficient, replaces defrost pattern in time and guarantee good defrosting effect And heating effect, make air conditioner in heat-storing material in hydropenic situation can normal defrost, and water abundance in the case where Heating mode defrost is changed into guarantee user's comforts of use, promotes the usage experience of user.
In a particular embodiment, the first detection unit in defrosting control system provided by the invention, second detection unit, Third detection unit can be controlled by one or more microprocessors, and the first judging unit, second judgment unit, third judgement are single Member can be controlled by one or more microprocessors, and the first execution unit, the second execution unit, third execution unit can be by one The control of a or multi-microprocessor, the first recording unit and the second recording unit can be controlled by one or more microprocessors.
In a particular embodiment, air conditioner is heat pump type air conditioner, and in a heating mode, indoor heat exchanger is condenser, Outdoor heat exchanger is evaporator, and refrigerant is changed into the gas of high temperature and pressure by compressor compresses, enters condensation by four-way valve Device becomes the liquid of medium temperature high pressure after condenser inhales cold heat release, becomes the liquid of low-temp low-pressure after throttling set, by steaming After hair device heat absorption lets cool effect, becomes the gas of low-temp low-pressure, return to compressor by four-way valve, then proceed to recycle.It is making Under cold mode, indoor heat exchanger is evaporator, and outdoor heat exchanger is condenser, and refrigerant is changed into high temperature height by compressor compresses The gas of pressure becomes the liquid of medium temperature high pressure into outdoor condenser after condenser inhales cold heat release, after throttling set, becomes Become the gas of low-temp low-pressure after evaporator heat absorption lets cool effect at the liquid of low-temp low-pressure, return to pressure by four-way valve Contracting machine then proceedes to recycle.
In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace Dress ", " connected ", " connection ", the terms such as " fixation " shall be understood in a broad sense, can also be with for example, " connection " may be a fixed connection It is to be detachably connected, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.It is right For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with Suitable mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification, Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (23)

1. a kind of air conditioner characterized by comprising
Compressor；
Indoor heat exchanger；
Outdoor heat exchanger；
Four-way valve is arranged between the indoor heat exchanger and the outdoor heat exchanger, two orifices of the four-way valve The air inlet and air outlet of the compressor, one end of indoor heat exchanger described in the another two orifice of the four-way valve and institute State one end of outdoor heat exchanger；
Throttling set is arranged between the other end of the indoor heat exchanger and the other end of the outdoor heat exchanger；
Accumulation of heat component is arranged between the four-way valve and the outdoor heat exchanger, and the accumulation of heat component includes storage heater, moisturizing Device, electric heating part, the first temperature-detecting device and second temperature detection device, the storage heater include at least water for accommodating Heat-storing material, the storage heater is provided with the import being connected with the outdoor heat exchanger and is connected with the four-way valve Outlet, the water replanishing device are connected with the storage heater, and the electric heating part is arranged on the storage heater, first temperature Detection device is spent to be arranged in the accumulator outlet, for detecting the Outlet Gas Temperature, the second temperature detection device It is arranged on the storage heater, for detecting the temperature of the storage heater；
Shut-off valve is arranged between the four-way valve and the outdoor heat exchanger, connect with the accumulation of heat modules in parallel；
Wherein, when the difference of the Outlet Gas Temperature is greater than fiducial temperature within a preset time, the electric heating part stops working, The shut-off valve is opened, and the four-way valve commutation makes air conditioner defrost in cooling mode, the water replanishing device work pair The storage heater carries out moisturizing；
When the temperature changing speed of the storage heater is less than or equal to preset value in preset duration, the water replanishing device stops mending Water, the four-way valve commutation make air conditioner defrost in a heating mode, and the shut-off valve is closed, the electric heating part work Make.
2. air conditioner according to claim 1, which is characterized in that further include:
Bottom plate of outdoor unit, is arranged in the top of the water replanishing device, and the water replanishing device is connected with the bottom plate of outdoor unit.
3. air conditioner according to claim 1, which is characterized in that further include:
Drain pan of indoor machine, the water replanishing device are connected with the drain pan of indoor machine.
4. air conditioner according to claim 1, which is characterized in that
First temperature-detecting device and the second temperature detection device are temperature sensor.
5. air conditioner according to any one of claim 1 to 4, which is characterized in that
The throttling set is electric expansion valve.
6. a kind of defrosting control method, is used for air conditioner, the air conditioner is air-conditioning described in any one of claims 1 to 5 Device, which is characterized in that the defrosting control method includes:
The air conditioner in a heating mode, detects the system parameter of the air conditioner；
Judge whether the system parameter reaches default defrost condition；
It is closed if so, controlling the shut-off valve, controlling the electric heating part work and heat to the storage heater makes the sky Adjust device defrost in a heating mode；
The operating time for recording the electric heating part detects the Outlet Gas Temperature T1, reaches first in the operating time When preset duration, the detected Outlet Gas Temperature T1 is recorded as T10, and after the second preset duration t2, by institute The Outlet Gas Temperature T1 detected is recorded as T1i；
Judge whether T1i-T10 is greater than fiducial temperature Δ T；
It stops working if so, controlling the electric heating part, controls the shut-off valve and open, control the water replanishing device work to institute It states storage heater and carries out moisturizing, controlling the four-way valve commutation makes air conditioner defrost in cooling mode；
The moisturizing duration for recording the water replanishing device detects the temperature T2 of the storage heater, and reaches in the moisturizing duration When three preset duration t3, the temperature T2 of the detected storage heater is recorded as T20, and after the 4th preset duration t4, The temperature T2 of the detected storage heater is recorded as T2i；
Whether judgement (T2i-T20)/t4 is less than or equal to preset value A；
If so, controlling the water replanishing device stops moisturizing, controlling the four-way valve commutation makes the air conditioner in a heating mode Defrost returns and controls the shut-off valve again and closes, and the electric heating part work carries out described in heating makes the storage heater Air conditioner defrost in a heating mode.
7. defrosting control method according to claim 6, which is characterized in that further include:
When it is described judge whether T1i-T10 is greater than the judging result of fiducial temperature Δ T to be when, push and show water shortage moisturizing believe Breath；
When it is described judge whether (T2i-T20)/t4 is less than or equal to the judging result of preset value A to be when, push and show moisturizing Finish information.
8. defrosting control method according to claim 6, which is characterized in that further include:
When it is described judge T1i-T10 whether be greater than the judging result of fiducial temperature Δ T for it is no when, described work off one's feeling vent one's spleen detected Temperature T1 is recorded as T10 again, returns and again records the Outlet Gas Temperature T1 after second preset duration For T1i.
9. defrosting control method according to claim 6, which is characterized in that further include:
When it is described judge (T2i-T20)/t4 whether to be less than or equal to the judging result of preset value A be no when, by detected institute The temperature T2 for stating storage heater is recorded as T20 again, returns and again after the 4th preset duration by the temperature of the storage heater Degree T2 is recorded as T2i.
10. defrosting control method according to any one of claims 6 to 9, which is characterized in that the control cut-off Valve is closed, and controlling electric heating part work and carrying out heating to the storage heater makes air conditioner defrost in a heating mode Specific steps include:
The shut-off valve is controlled to close；
After the 5th preset duration t5, controlling the electric heating part work and heat to the storage heater makes the air conditioner exist Defrost under heating mode.
11. defrosting control method according to claim 10, which is characterized in that
The first preset duration t1, the second preset duration t2, the third preset duration t3, the 4th preset duration T4, the 5th preset duration t5 are at least one of: relational expression, the relationship of the heat-storing material of the storage heater volume Formula, fixed value.
12. defrosting control method according to claim 11, which is characterized in that further include:
The fiducial temperature Δ T, the preset value A are at least one of: the relational expression of the storage heater volume, the accumulation of heat The relational expression of material, the relational expression of the first preset duration t1, relational expression, the third of the second preset duration t2 are pre- If the relational expression of duration t3, the relational expression of the 4th preset duration t4, the relational expression of the 5th preset duration t5, fixation Value.
13. defrosting control method according to claim 12, which is characterized in that the system parameter is at least one of Or combinations thereof:
The temperature of the storage heater, the Outlet Gas Temperature of the storage heater, the temperature of the indoor heat exchanger, the compressor Runing time, the running frequency of the compressor.
14. defrosting control method according to claim 13, which is characterized in that
The first preset duration t1 is 4 minutes, and the second preset duration t2 is 0.5 minute, and the fiducial temperature Δ T is 50 DEG C, the third preset duration t3 is 1 minute, and the 4th preset duration is 4 minutes, and the preset value A is the 10, the described 5th Preset duration is 2 minutes.
15. a kind of defrosting control system, is used for air conditioner, the air conditioner is air-conditioning described in any one of claims 1 to 5 Device, which is characterized in that the defrosting control system includes:
First detection unit in a heating mode for the air conditioner detects the system parameter of the air conditioner；
First judging unit, for judging whether the system parameter reaches default defrost condition；
First execution unit is closed, control for when the judging result of first judging unit, which is, is, controlling the shut-off valve Making the electric heating part work and heat to the storage heater makes air conditioner defrost in a heating mode, the second inspection of starting Survey unit and the first recording unit；
The second detection unit, for detecting the Outlet Gas Temperature T1；
It is pre- to reach first in the operating time for recording the operating time of the electric heating part for first recording unit If when duration t1, the Outlet Gas Temperature T1 that the second detection unit is detected is recorded as T10, and when second is default After long t2, the Outlet Gas Temperature T1 of second detection unit detection detection is recorded as T1i；
Second judgment unit, for judging whether Ti-T0 is greater than fiducial temperature；
Second execution unit is to control the electric heating part when being and stop for the judging result in the second judgment unit Work controls the shut-off valve and opens, and controls the water replanishing device work and carries out moisturizing to the storage heater, controls the four-way Valve commutation makes air conditioner defrost in cooling mode, and starts third detection unit and the second recording unit；
The third detection unit, for detecting the temperature T2 of the storage heater；
Second recording unit reaches third for recording the moisturizing duration of the water replanishing device, and in the moisturizing duration When preset duration t3, the temperature T2 for the storage heater that the third detection unit detects is recorded as T20, and pre- the 4th If after duration t4, the temperature T2 for the storage heater that the third detection unit detects is recorded as T2i；
Third judging unit, for judging whether (T2i-T20)/t4 is less than or equal to preset value A；
Third execution unit is to control the water replanishing device when being and stop for the judging result in the third judging unit Moisturizing, controlling the four-way valve commutation makes air conditioner defrost in a heating mode, and returns and restart the first execution Unit.
16. defrosting control system according to claim 15, which is characterized in that further include:
Display unit, for pushing and showing water shortage moisturizing information when the judging result of the second judgment unit, which is, is, when The judging result of the third judging unit is when being, to push and show that moisturizing finishes information.
17. defrosting control system according to claim 15, which is characterized in that
Second execution unit is also used to when the judging result of the second judgment unit is no, controls first note The Outlet Gas Temperature T1 that record unit detects the second detection unit is recorded as T10 again.
18. defrosting control system according to claim 15, which is characterized in that the third execution unit is also used to work as When the judging result of the third judging unit is no, control what second recording unit detected the third detection unit The temperature T2 of the storage heater is recorded as T20 again.
19. defrosting control system described in any one of 5 to 18 according to claim 1, which is characterized in that described first executes list Member further include:
End valve control unit, VCU, is closed for when the judging result of first judging unit, which is, is, controlling the shut-off valve；
Timing unit records the duration that the shut-off valve is closed, and when the duration reaches five preset durations, to the electricity Heating member control unit sends enabling signal；
The electric heating part control unit, for the electric heating part work being controlled, to the accumulation of heat according to the enabling signal Device, which carries out heating, makes air conditioner defrost in a heating mode.
20. defrosting control system according to claim 19, which is characterized in that
The first preset duration t1, the second preset duration t2, the third preset duration t3, the 4th preset duration T4, the 5th preset duration t5 are at least one of: relational expression, the relationship of the heat-storing material of the storage heater volume Formula, fixed value.
21. defrosting control system according to claim 20, which is characterized in that
The fiducial temperature Δ T, the preset value A are at least one of: the relational expression of the storage heater volume, the accumulation of heat The relational expression of material, the relational expression of the first preset duration t1, relational expression, the third of the second preset duration t2 are pre- If the relational expression of duration t3, the relational expression of the 4th preset duration t4, the relational expression of the 5th preset duration t5, fixation Value.
22. defrosting control system according to claim 21, which is characterized in that the system parameter is at least one of Or combinations thereof:
The temperature of the storage heater, the Outlet Gas Temperature of the storage heater, the temperature of the indoor heat exchanger, the compressor Runing time, the running frequency of the compressor.
23. defrosting control system according to claim 22, which is characterized in that
The first preset duration t1 is 4 minutes, and the second preset duration t2 is 0.5 minute, and the fiducial temperature Δ T is 50 DEG C, the third preset duration t3 is 1 minute, and the 4th preset duration is 4 minutes, and the preset value A is the 10, the described 5th Preset duration is 2 minutes.
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CN110645675B (en) * 2019-09-23 2021-02-02 南京天加环境科技有限公司 Improved defrosting control method for air conditioner
CN110848885B (en) * 2019-11-28 2021-10-26 广东美的制冷设备有限公司 Air conditioner, defrosting method thereof and computer readable storage medium
CN111503821B (en) * 2020-04-29 2021-10-26 广东美的制冷设备有限公司 Control method of air conditioner
CN111780224B (en) * 2020-07-06 2022-06-17 宁波奥克斯电气股份有限公司 Air conditioning system and control method thereof

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