CN107084495A - The defrosting control method and air conditioner of air conditioner - Google Patents
The defrosting control method and air conditioner of air conditioner Download PDFInfo
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- CN107084495A CN107084495A CN201710327168.7A CN201710327168A CN107084495A CN 107084495 A CN107084495 A CN 107084495A CN 201710327168 A CN201710327168 A CN 201710327168A CN 107084495 A CN107084495 A CN 107084495A
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- air conditioner
- air
- heating
- outdoor unit
- dew
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—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 using natural energy, e.g. solar energy, energy from the ground using solar energy
- F24F2005/0067—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 using natural energy, e.g. solar energy, energy from the ground using solar energy with photovoltaic panels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to air-conditioning technical field, it is intended to solve existing air-conditioning can not by Rule of judgment to select optimal defrosting mode the problem of.Therefore, the invention provides a kind of defrosting control method of air conditioner and air conditioner, this method comprises the following steps：Judge whether photovoltaic voltage is more than or equal to the first predeterminated voltage；If photovoltaic voltage is more than or equal to the first predeterminated voltage, air conditioner is entered photovoltaic and heat defrosting mode；If photovoltaic voltage is less than the first predeterminated voltage, judge whether cell voltage is more than or equal to the second predeterminated voltage；If cell voltage is more than or equal to the second predeterminated voltage, air conditioner is entered battery and heat defrosting mode；If cell voltage is less than the second predeterminated voltage, air conditioner is set to enter city's electrical heating defrosting mode.The present invention can make air conditioner use optimal defrosting mode by the condition for the voltage for judging photovoltaic and battery, so as to ensure the defrosting effect of air-conditioning, and heating effect when improving air-conditioner defrosting, and then lift the comfortableness of indoor environment.
Description
Technical field
The invention belongs to air-conditioning technical field, the defrosting control method and air conditioner of a kind of air conditioner are specifically provided.
Background technology
Air conditioner is as a kind of equipment that can adjust indoor environment temperature, its operation principle：Followed by refrigerant
Cause indoor environment temperature reduction between endless tube road by the State Transferring of high voltage/low voltage/gaseous state/liquid or raise, i.e.,
From the perspective of indoor set, air conditioner is in refrigeration or heating condition.Under heating condition, the outdoor unit of air conditioner (steams
Send out device) outer coil pipe on easily frosting, outer coil pipe frosting can cause the hydraulic performance decline of refrigeration system, so as to influence the system of air conditioner
Thermal effect, reduces the comfortableness of indoor environment, influences Consumer's Experience.Therefore, in the case of air conditioner is in heating condition,
Need to carry out air conditioner timely and effective defrosting.
To solve the problems, such as the frosting of air conditioner, Publication No. CN104833027A patent of invention discloses a kind of " comprehensive
Utilize solar energy optical-thermal and the household DC convertible frequency air-conditioner of photoelectric technology ".Specifically, the air-conditioning of above-mentioned patent is by the sun
Solar energy photovoltaic panel in energy electro-optical system gathers solar energy and then air-conditioning is powered, by solar energy hot systems
Solar vacuum heat-collecting pipe collects solar energy, and converts the solar into heat energy and by medium Water transport and be stored in insulation water again
In case, so as to provide the heat of defrost when air-conditioning needs defrost, above-mentioned air-conditioning can be by the effect of solar energy to air-conditioning
Heat supply and power supply are carried out, but the heating system of the patent of invention and electric power system are independent of each other, whole air-conditioning can be very
Complexity, and above-mentioned air-conditioning when solar energy is sufficient can using solar energy conversion heat energy as defrosting origin of heat, in the sun
The heat energy conduct of attemperater storage in the heat energy and solar energy hot systems that can be stored when can be not enough first with battery
The origin of heat of defrosting, when solar energy and battery can not provide heat energy, the electric energy that civil power can be called to provide maintains air-conditioning
Normal operation.But, the complexity that above-mentioned air-conditioning is obtained when air-conditioning needs to be defrosted according only to energy is removed to select
The origin of heat of frost, it is impossible to optimal defrosting mode is selected according to Rule of judgment, i.e., when solar energy is inadequate, air-conditioning may
Still the defrosting mode based on the photothermy of solar energy can be selected, or in the not enough situation of the electric energy that battery is stored
Under, the heat energy that air-conditioning may can be stored still using battery is defrosted as the heat energy source of defrosting, above two feelings
Under condition, air-conditioning can not ensure its defrosting effect, and the time of defrosting can be caused longer, be unfavorable for the saving and utilization of the energy.
Therefore, this area needs a kind of new defrosting control method and corresponding air conditioner to solve the above problems.
The content of the invention
It has been that the existing air-conditioning of solution can not be selected by Rule of judgment to solve above mentioned problem of the prior art
The problem of selecting optimal defrosting mode, the invention provides a kind of defrosting control method of air conditioner, this method comprises the following steps：
In the case of air conditioner is in heating condition, judge whether photovoltaic voltage is more than or equal to the first predeterminated voltage；If photovoltaic electric
Pressure is more than or equal to the first predeterminated voltage, air conditioner is entered photovoltaic and heats defrosting mode；Preset if photovoltaic voltage is less than first
Voltage, then determine whether whether cell voltage is more than or equal to the second predeterminated voltage；If cell voltage is more than or equal to second
Predeterminated voltage, makes air conditioner enter battery and heats defrosting mode；If cell voltage is less than the second predeterminated voltage, make air conditioner
Into city's electrical heating defrosting mode.
In the optimal technical scheme of the above method, the step of above method also includes exiting photovoltaic heating defrosting mode,
The step is specifically included：Air conditioner be in photovoltaic heating defrosting mode during, judge outdoor unit coil temperature whether be more than or
It is more than or equal to the dew-point temperature of outside ambient air equal to the dew-point temperature of outside ambient air, and outdoor unit coil temperature
Duration whether reach the first preset time；If outdoor unit coil temperature is more than or equal to the dew point of outside ambient air
The temperature and duration reaches the first preset time, then make air conditioner exit photovoltaic heating defrosting mode；If outdoor unit disk
Pipe temperature is less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature is more than or equal to the dew of outside ambient air
Put temperature but the duration is not up to the first preset time, then air conditioner is maintained photovoltaic heating defrosting mode.
In the optimal technical scheme of the above method, by making photovoltaic panel start/stop to heated object for electrically heated
Mode, makes the into/out photovoltaic heating defrosting mode of air conditioner.
In the optimal technical scheme of the above method, the above method also includes exiting the step that battery heats defrosting mode
Suddenly, the step is specifically included：During air conditioner is in battery heating defrosting mode, judge whether outdoor unit coil temperature is big
In or equal to outside ambient air dew-point temperature, and outdoor unit coil temperature be more than or equal to outside ambient air dew point
Whether the duration of temperature reaches the second preset time；If outdoor unit coil temperature is more than or equal to outside ambient air
The dew-point temperature and duration reaches the second preset time, then make air conditioner exit battery heating defrosting mode；If room
Outer machine coil temperature is less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature is more than or equal to external environment sky
The dew-point temperature of the gas but duration is not up to the second preset time, then make air conditioner maintain battery heating defrosting mode.
In the optimal technical scheme of the above method, by making battery start/stop to heated object for electrically heated
Mode, makes the into/out battery heating defrosting mode of air conditioner.
In the optimal technical scheme of the above method, the step of above method also includes exiting city's electrical heating defrosting mode,
The step is specifically included：Air conditioner be in city's electrical heating defrosting mode during, judge outdoor unit coil temperature whether be more than or
It is more than or equal to the dew-point temperature of outside ambient air equal to the dew-point temperature of outside ambient air, and outdoor unit coil temperature
Duration whether reach the 3rd preset time；If outdoor unit coil temperature is more than or equal to the dew point of outside ambient air
The temperature and duration reaches the 3rd preset time, then make air conditioner exit city's electrical heating defrosting mode；If outdoor unit disk
Pipe temperature is less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature is more than or equal to the dew of outside ambient air
Put temperature but the duration is not up to the 3rd preset time, then air conditioner is maintained city's electrical heating defrosting mode.
In the optimal technical scheme of the above method, by making mains supply start/stop heating of being powered to heated object
Mode, make the into/out city's electrical heating defrosting mode of air conditioner.
In the optimal technical scheme of the above method, the above method also includes judging whether air conditioner meets defrosting condition
Step, the step is specifically included：Before " judging whether photovoltaic voltage is more than or equal to the first predeterminated voltage " is performed, room is judged
Whether outer machine coil temperature is less than the dew-point temperature of outside ambient air, and outdoor unit coil temperature is less than outside ambient air
Duration of dew-point temperature whether reach the 4th preset time；If outdoor unit coil temperature is less than outside ambient air
The dew-point temperature and duration reaches the 4th preset time, then air conditioner meets defrosting condition；If outdoor unit coil temperature
It is less than the dew-point temperature of outside ambient air more than or equal to the dew-point temperature of outside ambient air, or outdoor unit coil temperature
But the duration is not up to the 4th preset time, then air conditioner is unsatisfactory for defrosting condition.
On the other hand, present invention also offers a kind of air conditioner, air conditioner include air-conditioner outdoor unit, indoor apparatus of air conditioner,
Compressor and four-way valve, compressor, air-conditioner outdoor unit and indoor apparatus of air conditioner are sequentially connected to form circulation main road, and four-way valve can lead to
Crossing the mode of commutation makes air conditioner be in refrigeration or heating condition, and air conditioner also includes：Heated object, it is arranged at circulation master
Lu Shang, heated object can be heated the refrigerant circulated in main road；Heating part, it include electrically connecting with heated object to
A kind of few heating member, any of at least one heating member heating member can make heated object be heated；Control unit, it is used
In：In the case of the outdoor unit coil pipe of air-conditioner outdoor unit needs defrosting, the one of which heating member in heating part is set to be in work
Make state.
In the optimal technical scheme of above-mentioned air conditioner, heating part includes the first heating member, the second heating member and the 3rd and added
Warmware, the first heating member is photovoltaic panel, and the second heating member is that battery, the 3rd heating member are mains supply.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, by judging photovoltaic voltage
Size judge whether solar energy sufficient, if photovoltaic voltage is more than or equal to the first predeterminated voltage, illustrate now solar charging
Foot, air conditioner is preferentially defrosted using photovoltaic heating defrosting mode；If photovoltaic voltage is less than the first predeterminated voltage, illustrate now
Solar energy is inadequate, and air conditioner should be defrosted using other defrosting modes.Then further by judging the big of cell voltage
It is small to judge whether battery power is sufficient, if cell voltage is more than or equal to the second predeterminated voltage, illustrate now battery electric energy
Abundance, air conditioner is preferentially defrosted using battery heating defrosting mode；If cell voltage is less than the second predeterminated voltage, explanation
Now battery electric energy is inadequate, and air conditioner should be defrosted using city's electrical heating defrosting mode.The present invention can be by judging
Photovoltaic voltage and the condition of cell voltage cause air conditioner to use optimal defrosting mode, so as to ensure the defrosting effect of air conditioner
Really, and reduce air conditioner defrosting time, beneficial to the saving and utilization of the energy.In addition, not stopping the invention enables air conditioner
Persistently heated in the case of machine, so that heating effect when improving air conditioner defrosting, and then improve the comfortable of indoor environment
Property.
Further, the present invention directly supplies electrically heated knot using photovoltaic panel, battery or mains supply to heated object
Configuration formula, can simplify the structure of air conditioner, i.e., when solar energy is sufficient, power heating to heated object to carry by photovoltaic panel
For the main heating source of air-conditioner defrosting, solar energy is inadequate and during sufficient battery electric energy, heated object is supplied by battery
Electrical heating, in solar energy and not enough battery electric energy, passes through mains supply pair to provide the main heating source of air-conditioner defrosting
Heated object powers heating to provide the main heating source of air-conditioner defrosting, passes through the design of said structure so that air-conditioning is in different electricity
Optimal defrosting mode can be selected under the conditions of pressure, so as to ensure the defrosting effect of air-conditioning, and improve air-conditioning heat effect
Really, so lifted indoor environment comfortableness.
Brief description of the drawings
Fig. 1 is the flow chart of the defrosting control method of the air conditioner of the present invention；
Fig. 2 is the structural representation of the air conditioner of the present invention.
Embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.
Asking for optimal defrosting mode can not be selected by Rule of judgment based on the existing air-conditioning proposed in background technology
Topic, the invention provides a kind of defrosting control method of air conditioner and air conditioner, it is intended to by judging photovoltaic voltage and battery
The size of voltage enables air-conditioning to use optimal defrosting mode, it is ensured that the defrosting effect of air-conditioning, and that improves air-conditioning heats effect
Really, so as to lift the comfortableness of indoor environment.
Referring to Fig. 1 and Fig. 2, Fig. 1 is the flow chart of the control method of the air-conditioner defrosting of the present invention, and Fig. 2 is the sky of the present invention
The structural representation of device is adjusted, as shown in Fig. 2 the air conditioner of the present invention includes air-conditioner outdoor unit 1, indoor apparatus of air conditioner 2, compressor 3
With four-way valve 4, compressor 3, air-conditioner outdoor unit 1 and indoor apparatus of air conditioner 2 are sequentially connected to form circulation main road, and four-way valve 4 can lead to
Crossing the mode of commutation makes air conditioner be in refrigeration or heating condition, and air conditioner also includes：Heated object, it is arranged at circulation master
Lu Shang, heated object can be heated the refrigerant circulated in main road；Heating part, it include electrically connecting with heated object to
A kind of few heating member, any of at least one heating member heating member can make heated object be heated；Control unit, it is used
In：In the case of the outdoor unit coil pipe of air-conditioner outdoor unit 1 needs defrosting, the one of which heating member in heating part is set to be in work
Make state.Heating part includes the first heating member, the second heating member and the 3rd heating member, wherein：First heating member is photovoltaic panel 9,
Second heating member is battery 10, and the 3rd heating member is mains supply 11.
In order that air conditioner can select optimal defrosting mode in different voltage conditions, removed the invention provides one kind
The control method of frost, as shown in figure 1, this method comprises the following steps：S1：In the case of air conditioner is in heating condition, sentence
Whether disconnected photovoltaic voltage is more than or equal to the first predeterminated voltage；S2：If photovoltaic voltage is more than or equal to the first predeterminated voltage, make sky
Adjust device to enter photovoltaic and heat defrosting mode；S3：If photovoltaic voltage is less than the first predeterminated voltage, determine whether that cell voltage is
It is no to be more than or equal to the second predeterminated voltage；S4：If cell voltage is more than or equal to the second predeterminated voltage, air conditioner is set to enter electric power storage
Heat defrosting mode in pond；S5：If cell voltage is less than the second predeterminated voltage, air conditioner is set to enter city's electrical heating defrosting mode.
Those skilled in the art can judge whether solar energy is sufficient by judging the size of photovoltaic voltage, if photovoltaic electric
Pressure is more than or equal to the first predeterminated voltage, illustrates that now solar energy is sufficient, and air-conditioning is preferentially carried out using photovoltaic heating defrosting mode
Defrosting；If photovoltaic voltage is less than the first predeterminated voltage, illustrate that now solar energy is inadequate, air-conditioning should be entered using other defrosting modes
Row defrosting.Then judge whether battery power is sufficient by judging the size of cell voltage again, if cell voltage is more than or waited
In the second predeterminated voltage, illustrate that the electric energy of now battery 10 is sufficient, air-conditioning is preferentially carried out using battery heating defrosting mode
Defrosting；If cell voltage is less than the second predeterminated voltage, illustrate that the electric energy of now battery 10 is inadequate, air-conditioning should be added using civil power
Hot defrosting mode is defrosted.Pass through the Rule of judgment of above-mentioned photovoltaic voltage and cell voltage so that air-conditioning can be in difference
In the case of use optimal defrosting mode, and reduce the time of air-conditioner defrosting, beneficial to the saving and utilization of the energy, ensure simultaneously
The defrosting effect of air-conditioning, and heating effect of the air-conditioning in defrosting is improved, and then lift the comfortableness of indoor environment.
That is, by using the above-mentioned defrosting control method of the present invention, i.e., when air conditioner is in and heats circulation, leading to
The setting of the first predeterminated voltage is crossed, can provide whether air conditioner performs the conclusion that photovoltaic heats defrosting mode.Therein first
Predeterminated voltage neatly can be adjusted and set according to actual situation, and ice-lolly is removed by what the first predeterminated voltage was determined as long as meeting
The separation of part can optimize defrosting control method.By the setting of the second predeterminated voltage, air conditioner execution can be provided
Battery heats the conclusion of defrosting mode or city's electrical heating defrosting mode.Similarly, the second predeterminated voltage therein can also
Neatly adjust and set according to actual situation, as long as meeting the separation energy of the defrosting condition determined by the second predeterminated voltage
Enough optimize defrosting control method.
In a kind of possible embodiment, if the rated voltage of photovoltaic panel 9 is U, the first predeterminated voltage and second is preset
Voltage can be set as 0.85U, i.e., when photovoltaic voltage is more than or equal to 0.85U, it is believed that solar energy now is sufficient,
Air conditioner is entered photovoltaic and heat defrosting mode, when photovoltaic voltage is less than 0.85U and cell voltage is more than or equal to 0.85U,
It is considered that solar energy now is inadequate but battery 10 has sufficient electric energy, air-conditioning is entered battery and heats defrosting
Pattern, when photovoltaic voltage and cell voltage are respectively less than 0.85U, it is believed that now the electric energy of solar energy and battery 10 is not
Abundance, makes air conditioner enter city's electrical heating defrosting mode.Certainly, the first predeterminated voltage and the second predeterminated voltage are not limited to 0.85U,
Those skilled in the art neatly can adjust and set according to actual situation.
Preferably, method of the invention also includes exiting the judgment step that photovoltaic heats defrosting mode, and the step is specifically wrapped
Include：During air conditioner is in photovoltaic heating defrosting mode, judge whether outdoor unit coil temperature is more than or equal to external environment
The dew-point temperature of air, and outdoor unit coil temperature are more than or equal to duration of dew-point temperature of outside ambient air and are
It is no to reach the first preset time；If outdoor unit coil temperature is more than or equal to the dew-point temperature of outside ambient air and continued
Time reaches the first preset time, then air conditioner is exited photovoltaic heating defrosting mode；If outdoor unit coil temperature is less than outer
The dew-point temperature of boundary's surrounding air, or outdoor unit coil temperature are more than or equal to the dew-point temperature of outside ambient air but continued
Time is not up to the first preset time, then air conditioner is maintained photovoltaic heating defrosting mode.Correspondingly, can be by making photovoltaic panel
9 beginnings/stopping supplies electrically heated mode to heated object, makes the into/out photovoltaic heating defrosting mode of air conditioner.Specifically,
Under air-conditioning heating circulation, air conditioner control photovoltaic panel 9 when entering photovoltaic heating defrosting mode starts to power to heated object
Heating, the refrigerant that control indoor apparatus of air conditioner 2 comes out enters in air-conditioner outdoor unit 1 through heated object；Photovoltaic is exited in air conditioner to add
Photovoltaic panel 9 is controlled to stop heating of being powered to heated object during hot defrosting mode, the refrigerant that control indoor apparatus of air conditioner 2 comes out directly enters
Enter in air-conditioner outdoor unit 1.
Similarly, method of the invention also includes exiting the judgment step that battery heats defrosting mode, and the step is specific
Including：During air conditioner is in battery heating defrosting mode, judge whether outdoor unit coil temperature is more than or equal to the external world
The dew-point temperature of surrounding air, and outdoor unit coil temperature be more than or equal to outside ambient air dew-point temperature it is lasting when
Between whether reach the second preset time；If outdoor unit coil temperature be more than or equal to outside ambient air dew-point temperature and
Duration reaches the second preset time, then air conditioner is exited battery heating defrosting mode；If outdoor unit coil temperature
It is more than or equal to the dew-point temperature of outside ambient air less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature
But the duration is not up to the second preset time, then air conditioner is set to maintain battery heating defrosting mode.Correspondingly, by making storage
Battery 10 starts/stopped to supply electrically heated mode to heated object, makes the into/out battery heating defrosting mode of air conditioner.
Specifically, under air-conditioning heating circulation, air conditioner control battery 10 when entering battery heating defrosting mode starts to quilt
Heating member is powered heating, and the refrigerant that control indoor apparatus of air conditioner 2 comes out enters in air-conditioner outdoor unit 1 through heated object；In air conditioner
Control battery 10 stops heating of being powered to heated object when exiting battery heating defrosting mode, and control indoor apparatus of air conditioner 2 goes out
The refrigerant come is directly entered in air-conditioner outdoor unit 1.
Further similarly, method of the invention also includes the judgment step for exiting city's electrical heating defrosting mode, the step
Specifically include：During air conditioner is in city's electrical heating defrosting mode, judge whether outdoor unit coil temperature is more than or equal to outer
The dew-point temperature of boundary's surrounding air, and outdoor unit coil temperature are more than or equal to continuing for the dew-point temperature of outside ambient air
Whether the time reaches the 3rd preset time；If outdoor unit coil temperature is more than or equal to the dew-point temperature of outside ambient air simultaneously
And the duration reaches the 3rd preset time, then air conditioner is set to exit city's electrical heating defrosting mode；If outdoor unit coil temperature
It is more than or equal to the dew-point temperature of outside ambient air less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature
But the duration is not up to the 3rd preset time, then air conditioner is set to maintain city's electrical heating defrosting mode.Correspondingly, by making civil power
Power supply 11 starts/stopped to supply electrically heated mode to heated object, makes the into/out battery heating defrosting mode of air conditioner.
Specifically, under air-conditioning heating circulation, air conditioner control mains supply 11 when entering city's electrical heating defrosting mode starts to quilt
Heating member is powered heating, and the refrigerant that control indoor apparatus of air conditioner 2 comes out enters in air-conditioner outdoor unit 1 through heated object；In air conditioner
Mains supply 11 is controlled to stop heating of being powered to heated object when exiting city's electrical heating defrosting mode, control indoor apparatus of air conditioner 2 goes out
The refrigerant come is directly entered in air-conditioner outdoor unit 1.
Enter photovoltaic heating defrosting mode in above-mentioned air conditioner, defrosting mode is heated into battery or enter city's electrical heating
After defrosting mode, the refrigerant come out from indoor set 1 can be entered back into air-conditioner outdoor unit 1 after heated object is heated, so that
The refrigerant temperature into air-conditioner outdoor unit 1 is improved, air-conditioner outdoor unit 1 is defrosted.Alternatively, can also by from
The mode that the refrigerant that outdoor unit 1 flows to compressor 3 is heated enters the refrigerant temperature of the air entry of compressor 3 to improve, so that
The pressure of low pressure is improved, the compression ratio of compressor 3 is reduced, so as to lift the pressure of outdoor unit 1 indirectly, outdoor unit 1 is removed
Frost.After air-conditioning exits photovoltaic heating defrosting mode, exits battery heating defrosting mode or exit city's electrical heating defrosting mode,
The refrigerant come out from indoor apparatus of air conditioner 2 is entered directly into without heated object in air-conditioner outdoor unit 1, and air-conditioning returns to normal system
Heat pattern.Pass through above-mentioned control mode so that air-conditioning is when solar energy is sufficient, or solar energy is inadequate but battery 10
Electric energy it is sufficient when, and or solar energy and battery 10 electric energy it is inadequate when, air conditioner can be by being heated
Part provides the main heat energy source of air-conditioner defrosting for electrically heated mode.
In above-mentioned, the present invention is performing photovoltaic heating defrosting mode/battery heating defrosting mode/city's electric heated defrosting mould
During formula, air-conditioning exits the judgment step that photovoltaic heating defrosting mode/battery heats defrosting mode/city's electrical heating defrosting mode
Above-mentioned judgment mode is not limited to, can also be by judging the rate of decay of outdoor unit coil temperature or judging the relative humidity of air
Judged etc. condition, those skilled in the art neatly can adjust and set air-conditioning according to actual situation and exit above-mentioned remove
The judgment mode of white pattern.
In the above method, those skilled in the art can be according to actual situation neatly to the first preset time, second
Preset time and the 3rd preset time are adjusted and set.Such as by inventor repetition test, observe and compare, confirm when the
Judge that the opportunity for exiting defrosting is preferable when one preset time, the second preset time and the 3rd preset time are 1min.Certainly, on
The first preset time, the second preset time and the 3rd preset time stated are not limited to 1min, if meet by it is above-mentioned default when
Between the separation of defrosting condition that determines can optimize defrosting control method.
As can be seen that using the defrosting control method of the present invention, photovoltaic heating defrosting mode, battery are carried out in air conditioner
During heating defrosting mode and city's electrical heating defrosting mode, air conditioner can be all the time in not stopped status, so as to ensure sky
Device is adjusted when carrying out photovoltaic heating defrosting mode, battery heating defrosting mode or city's electrical heating defrosting mode, indoor environment
Temperature is held essentially constant, so as to ensure that the comfortableness of indoor environment, is improved the heating effect of air-conditioning, i.e., is not being sacrificed use
On the premise of family is experienced, the defrosting to air conditioner have effectively achieved.
Preferably, before photovoltaic voltage condition is judged, the above method can also be removed including judging whether air conditioner meets
The step of ice-lolly part.Alternatively, defrosting condition can be：During air conditioner is in heating condition and in execution abovementioned steps
Before " judging whether photovoltaic voltage is more than or equal to the first predeterminated voltage " in S1, judge whether outdoor unit coil temperature is less than
The dew-point temperature of outside ambient air, and outdoor unit coil temperature is less than duration of dew-point temperature of outside ambient air and is
It is no to reach the 4th preset time (such as two minutes).If outdoor unit coil temperature is less than the dew-point temperature of outside ambient air simultaneously
And the duration reaches two minutes, then proceed foregoing step S1 to step S5；If outdoor unit coil temperature be more than or
It is less than the dew-point temperature of outside ambient air equal to the dew-point temperature of outside ambient air, or outdoor unit coil temperature but continues
Time is not up to two minutes, then air-conditioning is unsatisfactory for defrosting condition, without defrosting.Above-mentioned defrosting condition is not limited to above-mentioned judgement
Mode, can also be judged according to the other conditions of air-conditioning, for example judged according to the speed of outer coil pipe temperature damping or
Person judges etc. according to the relative humidity of air, will not be repeated here., can be with a kind of embodiment of the present invention
Using Tes=C*Tao- α calculates the dew-point temperature T of outside ambient aires, wherein, TaoFor outdoor environment temperature, C is coefficient,
α is constant, and coefficient C and constant α can be obtained by any appropriate mode, such as experiment, mathematical modeling.
Preferably, in an air conditioner in accordance with the present invention, heated object is heating wire 7, passes through photovoltaic panel 9, battery 10 or city
Power supply 11 is powered heating to heating wire 7 to provide main heating source during air conditioner defrosting.In a kind of specific embodiment party
In formula, the present invention can use formula W=U2/ R calculates the caloric value W of heating wire 7, wherein, U be photovoltaic panel, battery or
(in photovoltaic heating defrosting mode, U is the voltage of photovoltaic panel to the voltage of mains supply；In battery heating defrosting mode, U
For the voltage of battery；In city's electrical heating defrosting mode, U is the voltage of mains supply), R is the resistance value of heating wire 7.When
So, above-mentioned heated object can also be other structures, and attemperater or fuel tank etc. transmit heat by WATER AS FLOW MEDIUM or oil
Energy.Similarly, the first heating member is not limited to above-mentioned photovoltaic panel 9, and the second heating member is also not necessarily limited to above-mentioned battery 10, the 3rd
Heating member is also not necessarily limited to above-mentioned mains supply 11, and the first heating member, the second heating member and the 3rd heating member can use any
The structure of voltage can be provided for heated object, be will not be repeated here.
In a kind of specific embodiment, air conditioner include air-conditioner outdoor unit 1, indoor apparatus of air conditioner 2, compressor of air conditioner 3,
Four-way valve 4, throttling arrangement 5 and main road magnetic valve 6, wherein：Indoor apparatus of air conditioner 2, main road magnetic valve 6, air-conditioner outdoor unit 1 and air-conditioning
The formation closed loop of compressor 3, throttling arrangement 5 is arranged between indoor apparatus of air conditioner 2 and main road magnetic valve 6, and four-way valve 4 can be by changing
To mode make air-conditioning be in refrigeration or heating condition.In addition, air-conditioning also adds including the heating wire in parallel with main road magnetic valve 6
Hot branch road, wherein：Electric-heating-wire-heating branch road is provided with the electrical heating magnetic valve 8 and heating wire 7 being sequentially connected.
In order to realize the heating that can be powered to heating wire 7, air conditioner also includes that electrically heated circuit can be supplied to heating wire 7
System, circuit system includes：Photovoltaic panel 9, battery 10, mains supply 11, first switch 12, second switch the 13, the 3rd are switched
14 and the 4th switch 15, wherein：The positive pole of photovoltaic panel 9 is connected by first switch 12 with the input stage of heating wire 7, photovoltaic panel 9
Positive pole of the positive pole also with battery 10 be directly connected to, the negative pole of photovoltaic panel 9 passes through the negative pole of second switch 13 and battery 10
Connection, the negative pole of photovoltaic panel 9 is also directly connected to the output stage of heating wire 7 and the negative pole of battery 10, and battery 10 is just
Pole 14 is connected by the 3rd switch with the input stage of heating wire 7, the output cascade of the negative pole of battery 10 directly with heating wire 7
Connect, mains supply 11 constitutes mains-supplied loop by the 4th switch 15 and heating wire 7, by the arrangement of above-mentioned air conditioner and set
Meter, can control air conditioner to carry out photovoltaic defrosting, battery 10 and defrost or civil power defrosting.
When air conditioner needs to carry out photovoltaic defrosting, corresponding to the structure in Fig. 2, control first switch 12 is connected, and second
The switch 15 of the switch of switch the 13, the 3rd 14 and the 4th is disconnected, and now photovoltaic panel 9 is powered to heating wire 7 and heated, while controlling electrical heating
Magnetic valve 8 is connected, and main road magnetic valve 6 disconnects, and air-conditioning enters photovoltaic and heats defrosting mode.Need to exit photovoltaic defrosting in air-conditioning
When, control first switch the 12, the 3rd switch 14 and the 4th switch 15 are disconnected, and second switch 13 is connected, and photovoltaic panel 9 can be to electric power storage
Pond 10 is charged, while controlling electrical heating magnetic valve 8 to disconnect, main road magnetic valve 6 is connected, and air-conditioning exits photovoltaic heating defrosting mode simultaneously
Into normal heating mode.
When air conditioner needs to carry out the defrosting of battery 10, corresponding to the structure in Fig. 2, the switch of control the 3rd 14 is connected,
First switch 12, the switch of second switch 13 and the 4th 15 are disconnected, and now battery 10 is powered to heating wire 7 and heated, and is controlled simultaneously
Electrical heating magnetic valve 8 is connected, and main road magnetic valve 6 disconnects, and air-conditioning enters battery and heats defrosting mode.Need to exit storage in air-conditioning
When battery 10 defrosts, control first switch the 12, the 3rd switch 14 and the 4th switch 15 are disconnected, and second switch 13 is connected, same to time control
Electrical heating magnetic valve 8 processed is disconnected, and main road magnetic valve 6 is connected, and air-conditioning exits battery heating defrosting mode and enters normal system
Heat pattern.
When air conditioner needs to carry out civil power defrosting, corresponding to the structure in Fig. 2, control second switch 13 and the 4th is switched
15 connections, the switch of first switch 12 and the 3rd 14 disconnects, while controlling electrical heating magnetic valve 8 to connect, main road magnetic valve 6 disconnects,
Air-conditioning enters city's electrical heating defrosting mode.When air-conditioning needs to exit civil power defrosting, control second switch 13 is connected, first switch
12nd, the 3rd switch 14 and the 4th switch 15 are disconnected, while controlling electrical heating magnetic valve 8 to disconnect, main road magnetic valve 6 is connected, air-conditioning
Exit city's electrical heating defrosting mode and enter normal heating mode.
Above-mentioned air conditioner can pass through controlling switch (including first switch 12, second switch 13, the 3rd switch 14 and the
Four switch 15) and magnetic valve (including main road magnetic valve 6 and electrical heating magnetic valve 8) switching come control air conditioner carry out photovoltaic
Defrosting, battery 10 defrost, civil power defrosts or normal heating mode, and therefore, air conditioner of the invention uses photovoltaic panel
9th, the structure type that battery 10 and mains supply 11 are combined, can realize photovoltaic panel 9, battery 10 and mains supply 11
Select a pair of heating wire 7 and be directly powered heating, solar energy hot systems and solar photovoltaic system are used with existing air-conditioning
The air conditioner being combined is compared, and the structure of air conditioner of the invention is more simple, can further simplify existing air conditioner
Structure, and enable air-conditioning to select optimal defrosting mode under different voltage conditions, so as to ensure air-conditioning
Defrosting effect, and heating effect when improving air-conditioner defrosting, and then lift the comfortableness of indoor environment.Meanwhile, the present invention is used
Photovoltaic panel 9, battery 10 or mains supply 11 directly supply electrically heated structure type to heating wire 7, can simplify air conditioner
Structure, is easy to the design and manufacture of air conditioner.
So far, combined preferred embodiment shown in the drawings describes technical scheme, still, this area
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these embodiments.Without departing from this
On the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to correlation technique feature, these
Technical scheme after changing or replacing it is fallen within protection scope of the present invention.
Claims (10)
1. a kind of defrosting control method of air conditioner, it is characterised in that the described method comprises the following steps：
In the case of air conditioner is in heating condition, judge whether photovoltaic voltage is more than or equal to the first predeterminated voltage；
If the photovoltaic voltage is more than or equal to first predeterminated voltage, air conditioner is entered photovoltaic and heat defrosting mode；
If the photovoltaic voltage is less than first predeterminated voltage, determine whether whether cell voltage is more than or equal to second
Predeterminated voltage；
If the cell voltage is more than or equal to second predeterminated voltage, air conditioner is entered battery and heat defrosting mode；
If the cell voltage is less than second predeterminated voltage, air conditioner is set to enter city's electrical heating defrosting mode.
2. according to the method described in claim 1, it is characterised in that methods described also includes exiting the photovoltaic heating defrosting mould
The step of formula, the step is specifically included：
During air conditioner is in photovoltaic heating defrosting mode, judge whether outdoor unit coil temperature is more than or equal to the external world
The dew-point temperature of surrounding air, and outdoor unit coil temperature be more than or equal to outside ambient air dew-point temperature it is lasting when
Between whether reach the first preset time；
If outdoor unit coil temperature is more than or equal to the dew-point temperature of outside ambient air and the duration reaches that first is pre-
If the time, then air conditioner is set to exit the photovoltaic heating defrosting mode；
If outdoor unit coil temperature is less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature is more than or equal to
The dew-point temperature of the outside ambient air but duration is not up to the first preset time, then make air conditioner maintain the photovoltaic heating
Defrosting mode.
3. method according to claim 2, it is characterised in that by making photovoltaic panel start/stop to power to heated object
The mode of heating, makes the into/out photovoltaic heating defrosting mode of air conditioner.
4. according to the method described in claim 1, it is characterised in that methods described also includes exiting the battery heating defrosting
The step of pattern, the step is specifically included：
During air conditioner is in battery heating defrosting mode, judge whether outdoor unit coil temperature is more than or equal to outer
The dew-point temperature of boundary's surrounding air, and outdoor unit coil temperature are more than or equal to continuing for the dew-point temperature of outside ambient air
Whether the time reaches the second preset time；
If outdoor unit coil temperature is more than or equal to the dew-point temperature of outside ambient air and the duration reaches that second is pre-
If the time, then air conditioner is set to exit the battery heating defrosting mode；
If outdoor unit coil temperature is less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature is more than or equal to
The dew-point temperature of the outside ambient air but duration is not up to the second preset time, then make air conditioner maintain the battery to add
Hot defrosting mode.
5. method according to claim 4, it is characterised in that by making battery start/stop to power to heated object
The mode of heating, makes the into/out battery heating defrosting mode of air conditioner.
6. according to the method described in claim 1, it is characterised in that methods described also includes exiting city's electric heated defrosting mould
The step of formula, the step is specifically included：
During air conditioner is in city's electrical heating defrosting mode, judge whether outdoor unit coil temperature is more than or equal to the external world
The dew-point temperature of surrounding air, and outdoor unit coil temperature be more than or equal to outside ambient air dew-point temperature it is lasting when
Between whether reach the 3rd preset time；
If outdoor unit coil temperature is more than or equal to the dew-point temperature of outside ambient air and the duration reaches that the 3rd is pre-
If the time, then air conditioner is set to exit city's electrical heating defrosting mode；
If outdoor unit coil temperature is less than the dew-point temperature of outside ambient air, or outdoor unit coil temperature is more than or equal to
The dew-point temperature of the outside ambient air but duration is not up to the 3rd preset time, then make air conditioner maintain city's electrical heating
Defrosting mode.
7. method according to claim 6, it is characterised in that by making mains supply start/stop to supply heated object
Electrically heated mode, makes the into/out city's electrical heating defrosting mode of air conditioner.
8. according to the method described in claim 1, it is characterised in that methods described also includes judging whether air conditioner meets defrosting
The step of condition, the step is specifically included：
Before " judging whether photovoltaic voltage is more than or equal to the first predeterminated voltage " is performed, whether outdoor unit coil temperature is judged
It is less than continuing for the dew-point temperature of outside ambient air less than the dew-point temperature of outside ambient air, and outdoor unit coil temperature
Whether the time reaches the 4th preset time；
If outdoor unit coil temperature is less than the dew-point temperature of outside ambient air and the duration reaches the 4th preset time,
Then air conditioner meets the defrosting condition；
If outdoor unit coil temperature is more than or equal to the dew-point temperature of outside ambient air, or outdoor unit coil temperature is less than
The dew-point temperature of the outside ambient air but duration is not up to the 4th preset time, then air conditioner be unsatisfactory for described removing ice-lolly
Part.
9. a kind of air conditioner, the air conditioner includes air-conditioner outdoor unit, indoor apparatus of air conditioner, compressor and four-way valve, the compression
Machine, the air-conditioner outdoor unit and the indoor apparatus of air conditioner are sequentially connected to form circulation main road, and the four-way valve can pass through commutation
Mode make air conditioner be in refrigeration or heating condition, it is characterised in that the air conditioner also includes：
Heated object, it is arranged on the circulation main road, and the heated object can enter the refrigerant in the circulation main road
Row heating；
Heating part, it is included at least one heating member electrically connected with the heated object, at least one heating member
Any heating member can make the heated object be heated；
Control unit, it is used for：
In the case of the outdoor unit coil pipe of the air-conditioner outdoor unit needs defrosting, heat the one of which in the heating part
Part is in running order.
10. air conditioner according to claim 9, it is characterised in that the heating part includes the first heating member, the second heating
Part and the 3rd heating member, first heating member are photovoltaic panel, and second heating member is battery, and the 3rd heating member is
Mains supply.
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| CN201710327168.7A CN107084495A (en) | 2017-05-10 | 2017-05-10 | The defrosting control method and air conditioner of air conditioner |
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Application publication date: 20170822 |