CN104501350A - Air conditioner control method and air conditioner - Google Patents
Air conditioner control method and air conditioner Download PDFInfo
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- CN104501350A CN104501350A CN201410652931.XA CN201410652931A CN104501350A CN 104501350 A CN104501350 A CN 104501350A CN 201410652931 A CN201410652931 A CN 201410652931A CN 104501350 A CN104501350 A CN 104501350A
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- air
- conditioner
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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
- 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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner control method. The method includes after an air conditioner operates in a heating mode, acquiring the temperature of an evaporation coil of an air conditioner outdoor unit; judging whether the temperature of the evaporation coil is smaller than a first preset temperature or not; if so, increasing the rotation speed of an air conditioner outdoor fan. The invention further discloses an air conditioner. After the air conditioner operates in a heating mode, the temperature of the evaporation coil of the air conditioner outdoor unit is detected, when the temperature of the evaporation coil is smaller than the first preset temperature, the rotation speed of the air conditioner outdoor fan is increased, the heat exchange between the outdoor evaporator and the outdoor air is accelerated, the frosting velocity of the air conditioner outdoor evaporator is decreased, the interval time between two adjacent defrosting operations is prolonged, excessively frequent air conditioner defrosting operation is avoided, the indoor temperature is stable constantly, and the comfort for using the air conditioner to heat is improved for users.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of control method and air-conditioner of air-conditioner.
Background technology
When using air-condition heats in the winter time, on the heat exchange coil of air-conditioner outdoor unit, easy frosting, therefore must defrost to outdoor unit heat exchanger in air-conditioner running.
Whether existing Defrost method is generally less than predetermined threshold value by the temperature of the heat exchange coil judging off-premises station, then opens defrosting mode when being less than predetermined threshold value.The defect of existing Defrost method is that defrosting action is too frequent, especially when outdoor temperature is lower, after each defrosting completes, the temperature of heat exchange coil just can be less than predetermined threshold value in the short period of time, therefore once more defrosting mode is opened, the interval time of adjacent twice defrosting action is shorter, causes indoor temperature fluctuated, has had a strong impact on the comfortableness of user.
Summary of the invention
Main purpose of the present invention is the control method and the air-conditioner that provide a kind of air-conditioner, is intended to solve air-conditioner defrosting action technical problem too frequently.
To achieve these goals, the invention provides a kind of control method of air-conditioner, the control method of described air-conditioner comprises the following steps:
After heating mode opened by air-conditioning, obtain the evaporative coil temperature of air-conditioner outdoor unit;
Judge whether described evaporative coil temperature is less than the first preset temperature;
When described evaporative coil temperature is less than described first preset temperature, then increase the rotating speed of outdoor fan of air-conditioner.
Preferably, the control method of described air-conditioner is further comprising the steps of:
After heating mode opened by air-conditioning, obtain the condenser coil temperature of indoor apparatus of air conditioner;
Judge whether described condenser coil temperature is less than the second preset temperature;
When described condenser coil temperature is less than described second preset temperature, then reduce the rotating speed of air conditioning chamber's inner blower.
Preferably, also comprise after the step of the rotating speed of described increase outdoor fan of air-conditioner:
Continue the evaporative coil temperature obtaining current air-conditioner outdoor unit;
Judge whether described current evaporative coil temperature is less than the 3rd preset temperature;
When described current evaporative coil temperature is less than the 3rd preset temperature, then controls air-conditioning and open defrosting mode;
Wherein, described first preset temperature is greater than described 3rd preset temperature.
Preferably, also comprise after the step of the rotating speed of described reduction air conditioning chamber inner blower:
Judge that air-conditioning is current and whether open defrosting mode;
When the current unlatching defrosting mode of air-conditioning, then close described indoor fan.
Preferably, also comprise after the step of the described indoor fan of described closedown:
Judge that air-conditioning is current and whether close defrosting mode, and open heating mode;
When air-conditioning is current close defrosting mode and open heating mode time, continue the condenser coil temperature obtaining current indoor apparatus of air conditioner;
Judge whether described current condenser coil temperature is greater than the 4th preset temperature;
When described current condenser coil temperature is greater than the 4th preset temperature, then open described indoor fan.
In addition, to achieve these goals, the present invention also provides a kind of air-conditioner, and described air-conditioner comprises:
Acquisition module, for after heating mode opened by air-conditioning, obtains the evaporative coil temperature of air-conditioner outdoor unit;
Judge module, for judging whether described evaporative coil temperature is less than the first preset temperature;
Control module, for when described evaporative coil temperature is less than described first preset temperature, then increases the rotating speed of outdoor fan of air-conditioner.
Preferably,
Described acquisition module also for after heating mode opened by air-conditioning, obtains the condenser coil temperature of indoor apparatus of air conditioner;
Described judge module is also for judging whether described condenser coil temperature is less than the second preset temperature;
Described control module also for when described condenser coil temperature is less than described second preset temperature, then reduces the rotating speed of air conditioning chamber's inner blower.
Preferably,
Described acquisition module is also for continuing the evaporative coil temperature obtaining current air-conditioner outdoor unit;
Described judge module is also for judging whether described current evaporative coil temperature is less than the 3rd preset temperature;
Described control module also for when described current evaporative coil temperature is less than the 3rd preset temperature, then controls air-conditioning and opens defrosting mode;
Wherein, described first preset temperature is greater than described 3rd preset temperature.
Preferably,
Whether described judge module also opens defrosting mode for judging that air-conditioning is current;
Described control module also for when the current unlatching defrosting mode of air-conditioning, then closes described indoor fan.
Preferably,
Whether described judge module also closes defrosting mode for judging that air-conditioning is current, and opens heating mode;
Described acquisition module also for when air-conditioning is current close defrosting mode and open heating mode time, continue the condenser coil temperature obtaining current indoor apparatus of air conditioner;
Described judge module is also for judging whether described current condenser coil temperature is greater than the 4th preset temperature;
Described control module also for when described current condenser coil temperature is greater than the 4th preset temperature, then opens described indoor fan.
The control method of air-conditioner provided by the invention and air-conditioner, after heating mode opened by air-conditioning, by detecting the evaporative coil temperature of air-conditioner outdoor unit, and when evaporative coil temperature is less than the first preset temperature, increase the rotating speed of outdoor fan of air-conditioner, thus the exchange heat accelerated between outdoor evaporator and outdoor air, because this reducing the frosting velocity of air-conditioner outdoor unit evaporimeter, extend the interval time between adjacent twice defrosting action, avoid air-conditioner defrosting action too frequent, make indoor temperature more stable all the time, improve comfort level when user's using air-condition heats.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of control method first embodiment of air-conditioner of the present invention;
Fig. 2 is the schematic flow sheet of control method second embodiment of air-conditioner of the present invention;
Fig. 3 is the schematic flow sheet of control method the 3rd embodiment of air-conditioner of the present invention;
Fig. 4 is the schematic flow sheet of control method the 4th embodiment of air-conditioner of the present invention;
Fig. 5 is the schematic flow sheet of control method the 5th embodiment of air-conditioner of the present invention;
Fig. 6 is the high-level schematic functional block diagram of air-conditioner one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of control method of air-conditioner.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are control method first embodiment of air-conditioner of the present invention.
In one embodiment, the control method of this air-conditioner comprises:
Step S10, after heating mode opened by air-conditioning, obtains the evaporative coil temperature of air-conditioner outdoor unit;
In the present embodiment, after air-conditioning start, judge whether air-conditioning is in heating mode, if be in heating mode, then the evaporative coil temperature of Real-time Obtaining air-conditioner outdoor unit.Such as, a temperature sensor can be fixedly installed on the evaporation coil of air-conditioner outdoor unit, the controller of air-conditioning is electrically connected with this temperature sensor, detected the evaporative coil temperature of off-premises station by temperature sensor in real time, and the evaporative coil temperature signal detected in real time is exported in the controller of air-conditioning.
It should be noted that after air-conditioner is converted to heating mode by defrosting mode, be also considered as starting of air conditioner heating mode, therefore need the evaporative coil temperature continuing to obtain air-conditioner outdoor unit.
Step S20, judges whether described evaporative coil temperature is less than the first preset temperature;
In the present embodiment, the size of the first preset temperature can be arranged according to actual needs, and such as, the present embodiment is-3 DEG C for the first preset temperature and is described.It should be noted that, in other embodiments, the first preset temperature can also be set to other temperature values.
When described evaporative coil temperature is less than described first preset temperature, then perform step S30.When described evaporative coil temperature is more than or equal to the first preset temperature, then perform step S10.
Step S30, increases the rotating speed of outdoor fan of air-conditioner.
In the present embodiment, after heating mode opened by air-conditioning, when evaporative coil temperature is more than or equal to zero degree, be then considered as the non-frosting of evaporimeter of air-conditioner outdoor unit, now outdoor fan has certain rotating speed, and does not reach the limiting value of outdoor fan rotating speed.Such as, the maximum (top) speed of outdoor fan is 1000 revs/min, then, when evaporative coil temperature is more than or equal to zero degree, the rotating speed of outdoor fan can be 800 revs/min.
When evaporative coil temperature is more than or equal to described first preset temperature and is less than zero degree, the evaporimeter being considered as air-conditioner outdoor unit starts frosting, but now frosting is considered as the heating capacity not affecting air-conditioning, because the condensation of steam can absorb a large amount of heats, heat exchange amount between the evaporimeter of off-premises station and air increases, air-conditioning heating amount is also increased, and therefore keep the rotating speed of outdoor fan of air-conditioner constant, namely the rotating speed of outdoor fan keeps 800 revs/min.
When evaporative coil temperature is less than described first preset temperature, the frosting degree being considered as air-conditioner outdoor unit evaporimeter is larger, and the exchange heat that can affect between outdoor evaporator and outdoor air, therefore, by increasing the rotating speed of outdoor fan, the exchange heat between outdoor evaporator and outdoor air can being accelerated, because this reducing the frosting velocity of air-conditioner outdoor unit evaporimeter, avoiding air-conditioner defrosting action too frequent.
In the present embodiment, the concrete mode increasing outdoor fan rotating speed can be selected according to actual needs, such as, and can when evaporative coil temperature be less than described first preset temperature, then disposable outdoor fan rotating speed is increased to a preset value, such as, is increased to 900 revs/min; Outdoor fan rotating speed can also be made at the uniform velocity to increase, such as, rising per minute 30 turns; One can also be preset about the function of evaporative coil temperature and outdoor fan rotating speed, determine the rotating speed of outdoor fan according to the temperature of the evaporation coil detected.It should be noted that when outdoor fan rotating speed rises to limiting value, then outdoor fan rotating speed stops rising, and it is constant to be stabilized in this limiting value.
The control method of air-conditioner provided by the invention, after heating mode opened by air-conditioning, by detecting the evaporative coil temperature of air-conditioner outdoor unit, and when evaporative coil temperature is less than the first preset temperature, increase the rotating speed of outdoor fan of air-conditioner, thus the exchange heat accelerated between outdoor evaporator and outdoor air, because this reducing the frosting velocity of air-conditioner outdoor unit evaporimeter, extend the interval time between adjacent twice defrosting action, avoid air-conditioner defrosting action too frequent, make indoor temperature more stable all the time, improve comfort level when user's using air-condition heats.
Further, in order to reduce the frosting velocity of air-conditioner outdoor unit evaporimeter further, to avoid air-conditioner defrosting action too frequent further, and improve the comfort level of air-conditioning user when opening heating mode further, with reference to Fig. 2, Fig. 2 is the schematic flow sheet of control method second embodiment of air-conditioner of the present invention, and in the present invention in a certain or all embodiments, the control method of described air-conditioner is further comprising the steps of:
Step S40, after heating mode opened by air-conditioning, obtains the condenser coil temperature of indoor apparatus of air conditioner;
In the present embodiment, after air-conditioning start, judge whether air-conditioning is in heating mode, if be in heating mode, then the condenser coil temperature of Real-time Obtaining indoor apparatus of air conditioner.Such as, a temperature sensor can be fixedly installed on the condenser coil of indoor apparatus of air conditioner, the controller of air-conditioning is electrically connected with this temperature sensor, detected the condenser coil temperature of indoor set by temperature sensor in real time, and the condenser coil temperature signal detected in real time is exported in the controller of air-conditioning.
It should be noted that after air-conditioner is converted to heating mode by defrosting mode, be also considered as starting of air conditioner heating mode, therefore need the condenser coil temperature continuing to obtain indoor apparatus of air conditioner.
Step S50, judges whether described condenser coil temperature is less than the second preset temperature;
In the present embodiment, the size of the second preset temperature can be arranged according to actual needs, and such as, the present embodiment is 45 DEG C for the second preset temperature and is described.It should be noted that, in other embodiments, the second preset temperature can also be set to other temperature values.
When described condenser coil temperature is less than described second preset temperature, then perform step S60.When described condenser coil temperature is more than or equal to described second preset temperature, then perform step S40.
Step S60, reduces the rotating speed of air conditioning chamber's inner blower.
In the present embodiment, after heating mode opened by air-conditioning, when condenser coil temperature is more than or equal to the second preset temperature, the frosting of the non-frosting of evaporimeter or current air-conditioner outdoor unit that are considered as air-conditioner outdoor unit does not affect the exchange heat of air-conditioner, now indoor set leaving air temp is higher, keep the rotating speed of outdoor fan of air-conditioner constant, such as, the rotating speed of outdoor fan keep 800 revs/min constant.
When condenser coil temperature is less than described second preset temperature, the frosting degree being considered as air-conditioner outdoor unit evaporimeter is larger, and the exchange heat that can affect between outdoor evaporator and outdoor air, therefore, by reducing the rotating speed of indoor fan, the condensing pressure of indoor set condenser can be improved, and then improve the temperature of condenser coil, keep the leaving air temp of indoor apparatus of air conditioner higher all the time, improve the comfort level of user.In addition, by reducing the rotating speed of indoor fan, the exchange heat between indoor condenser and room air can be reduced, therefore reduce further the frosting velocity of air-conditioner outdoor unit evaporimeter, avoiding air-conditioner defrosting action too frequent.
In the present embodiment, the concrete mode reducing outdoor fan rotating speed can be selected according to actual needs, such as, and can when condenser coil temperature be less than described second preset temperature, then disposable outdoor fan rotating speed is reduced to a preset value, such as, is reduced to 500 revs/min; Indoor fan rotating speed uniform descent can also be made, such as, reduction per minute 30 turns; One can also be preset about the function of condenser coil temperature and indoor fan rotating speed, determine the rotating speed of indoor fan according to the temperature of the condenser coil detected.
The control method of the air-conditioner that the present embodiment provides, after heating mode opened by air-conditioning, by detecting the condenser coil temperature of indoor apparatus of air conditioner, and when condenser coil temperature is less than the second preset temperature, reduce the rotating speed of air conditioning chamber's inner blower, thus improve the condensing pressure of indoor set condenser, and then improve the temperature of condenser coil, keep the leaving air temp of indoor apparatus of air conditioner higher all the time, improve the comfort level of user; In addition, the exchange heat between indoor condenser and room air can also be reduced, therefore reduce further the frosting velocity of air-conditioner outdoor unit evaporimeter, avoid air-conditioner defrosting action too frequent.
It should be noted that above-mentioned steps S40, S50, S60 before step S10, S20, S30, also after step S10, S20, S30, or can carry out with step S10, S20, S30 simultaneously.That is, to the detection deterministic process of off-premises station evaporative coil temperature with can be separate to the detection deterministic process of indoor set condenser coil temperature, can independent operating separately.
Further, defrosting mode is entered more exactly in order to make air-conditioning, and avoid air-conditioner defrosting action too frequent further, with reference to Fig. 3, Fig. 3 is the schematic flow sheet of control method the 3rd embodiment of air-conditioner of the present invention, in the present invention in a certain or all embodiments, also comprise after step S30:
Step S70, continues the evaporative coil temperature obtaining current air-conditioner outdoor unit;
In the present embodiment, evaporative coil temperature is detected in real time by the temperature sensor be arranged on the evaporation coil of off-premises station.
Step S80, judges whether described current evaporative coil temperature is less than the 3rd preset temperature;
In the present embodiment, the size of the 3rd preset temperature can be arranged according to actual needs, and such as, the present embodiment is-5 DEG C for the 3rd preset temperature and is described.It should be noted that in other embodiments, the 3rd preset temperature can also be set to other temperature values.
When described current evaporative coil temperature is less than the 3rd preset temperature, then perform step S90.When described current evaporative coil temperature is more than or equal to the 3rd preset temperature, then perform step S70.
Step S90, controls air-conditioning and opens defrosting mode; Wherein, described first preset temperature is greater than described 3rd preset temperature.
When controller judges that the temperature of evaporation coil is less than the 3rd preset temperature, then controller controls this air-conditioning and opens defrosting mode, and air-conditioner starts defrosting.
Further, in order to improve the comfort level of user when using air-condition device heats further, be the schematic flow sheet of control method the 4th embodiment of air-conditioner of the present invention with reference to Fig. 4, Fig. 4, in the present invention in a certain or all embodiments, also comprise after described step S60:
Step S100, judges that air-conditioning is current and whether opens defrosting mode;
When the current unlatching defrosting mode of air-conditioning, then perform step S110; When air-conditioning is current do not open defrosting mode time, then continue perform step S100.
Step S110, closes described indoor fan.
The present embodiment is by when defrosting mode opened by air-conditioning, and close chamber's inner blower, namely makes the rotating speed of above-mentioned indoor fan be reduced to zero, thus when the temperature that effectively prevent the condenser of indoor set is lower, the wind that indoor set blowout is colder.
Further, in order to improve the comfort level of user when using air-condition device heats further, be the schematic flow sheet of control method the 5th embodiment of air-conditioner of the present invention with reference to Fig. 5, Fig. 5, in the present invention in a certain or all embodiments, also comprise after described step S110:
Step S120, judges that air-conditioning is current and whether closes defrosting mode, and open heating mode;
When air-conditioning is current close defrosting mode and open heating mode time, then perform step S130; Do not close defrosting mode when air-conditioning is current, or when not opening heating mode, then perform step S120.
Step S130, continues the condenser coil temperature obtaining current indoor apparatus of air conditioner;
In the present embodiment, condenser coil temperature is detected in real time by the temperature sensor be arranged on the condenser coil of indoor set.
Step S140, judges whether described current condenser coil temperature is greater than the 4th preset temperature;
In the present embodiment, the size of the 4th preset temperature can be arranged according to actual needs, and such as, the present embodiment is 23 DEG C for the 4th preset temperature and is described.It should be noted that in other embodiments, the 4th preset temperature can also be set to other temperature values.
When described current condenser coil temperature is greater than the 4th preset temperature, then perform step S150; When described current condenser coil temperature is less than or equal to the 4th preset temperature, then perform step S130.
Step S150, opens described indoor fan.
When the present embodiment is by closing defrosting mode at air-conditioning and opening heating mode, judge whether current condenser coil temperature is greater than the 4th preset temperature, and when being greater than the 4th preset temperature Shi Zai opening chamber inner blower, thus ensure that the wind blown out by indoor set is always hot blast, improve the comfort level of user when using air-condition device heats further.
The present invention further provides a kind of air-conditioner.
With reference to the high-level schematic functional block diagram that Fig. 6, Fig. 6 are air-conditioner one embodiment of the present invention.
In one embodiment, this air-conditioner comprises:
Acquisition module 10, for after heating mode opened by air-conditioning, obtains the evaporative coil temperature of air-conditioner outdoor unit;
In the present embodiment, after air-conditioning start, judge whether air-conditioning is in heating mode, if be in heating mode, then the evaporative coil temperature of Real-time Obtaining air-conditioner outdoor unit.Such as, a temperature sensor can be fixedly installed on the evaporation coil of air-conditioner outdoor unit, the controller of air-conditioning is electrically connected with this temperature sensor, detected the evaporative coil temperature of off-premises station by temperature sensor in real time, and the evaporative coil temperature signal detected in real time is exported in the controller of air-conditioning.
It should be noted that after air-conditioner is converted to heating mode by defrosting mode, be also considered as starting of air conditioner heating mode, therefore need the evaporative coil temperature continuing to obtain air-conditioner outdoor unit.
Judge module 20, for judging whether described evaporative coil temperature is less than the first preset temperature;
In the present embodiment, the size of the first preset temperature can be arranged according to actual needs, and such as, the present embodiment is-3 DEG C for the first preset temperature and is described.It should be noted that, in other embodiments, the first preset temperature can also be set to other temperature values.
When described evaporative coil temperature is less than described first preset temperature, control module 30 is for then increasing the rotating speed of outdoor fan of air-conditioner.
In the present embodiment, after heating mode opened by air-conditioning, when evaporative coil temperature is more than or equal to zero degree, be then considered as the non-frosting of evaporimeter of air-conditioner outdoor unit, now outdoor fan has certain rotating speed, and does not reach the limiting value of outdoor fan rotating speed.Such as, the maximum (top) speed of outdoor fan is 1000 revs/min, then, when evaporative coil temperature is more than or equal to zero degree, the rotating speed of outdoor fan can be 800 revs/min.
When evaporative coil temperature is more than or equal to described first preset temperature and is less than zero degree, the evaporimeter being considered as air-conditioner outdoor unit starts frosting, but now frosting is considered as the heating capacity not affecting air-conditioning, because the condensation of steam can absorb a large amount of heats, heat exchange amount between the evaporimeter of off-premises station and air increases, air-conditioning heating amount is also increased, and therefore keep the rotating speed of outdoor fan of air-conditioner constant, namely the rotating speed of outdoor fan keeps 800 revs/min.
When evaporative coil temperature is less than described first preset temperature, the frosting degree being considered as air-conditioner outdoor unit evaporimeter is larger, and the exchange heat that can affect between outdoor evaporator and outdoor air, therefore, by increasing the rotating speed of outdoor fan, the exchange heat between outdoor evaporator and outdoor air can being accelerated, because this reducing the frosting velocity of air-conditioner outdoor unit evaporimeter, avoiding air-conditioner defrosting action too frequent.
In the present embodiment, the concrete mode increasing outdoor fan rotating speed can be selected according to actual needs, such as, and can when evaporative coil temperature be less than described first preset temperature, then disposable outdoor fan rotating speed is increased to a preset value, such as, is increased to 900 revs/min; Outdoor fan rotating speed can also be made at the uniform velocity to increase, such as, rising per minute 30 turns; One can also be preset about the function of evaporative coil temperature and outdoor fan rotating speed, determine the rotating speed of outdoor fan according to the temperature of the evaporation coil detected.It should be noted that when outdoor fan rotating speed rises to limiting value, then outdoor fan rotating speed stops rising, and it is constant to be stabilized in this limiting value.
Air-conditioner provided by the invention, after heating mode opened by air-conditioning, by detecting the evaporative coil temperature of air-conditioner outdoor unit, and when evaporative coil temperature is less than the first preset temperature, increase the rotating speed of outdoor fan of air-conditioner, thus the exchange heat accelerated between outdoor evaporator and outdoor air, because this reducing the frosting velocity of air-conditioner outdoor unit evaporimeter, extend the interval time between adjacent twice defrosting action, avoid air-conditioner defrosting action too frequent, make indoor temperature more stable all the time, improve comfort level when user's using air-condition heats.
Further, in order to reduce the frosting velocity of air-conditioner outdoor unit evaporimeter further, to avoid air-conditioner defrosting action too frequent further, and improve the comfort level of air-conditioning user when opening heating mode further, in the present invention in a certain or all embodiments,
Described acquisition module 10 also for after heating mode opened by air-conditioning, obtains the condenser coil temperature of indoor apparatus of air conditioner;
In the present embodiment, after air-conditioning start, judge whether air-conditioning is in heating mode, if be in heating mode, then the condenser coil temperature of Real-time Obtaining indoor apparatus of air conditioner.Such as, a temperature sensor can be fixedly installed on the condenser coil of indoor apparatus of air conditioner, the controller of air-conditioning is electrically connected with this temperature sensor, detected the condenser coil temperature of indoor set by temperature sensor in real time, and the condenser coil temperature signal detected in real time is exported in the controller of air-conditioning.
It should be noted that after air-conditioner is converted to heating mode by defrosting mode, be also considered as starting of air conditioner heating mode, therefore need the condenser coil temperature continuing to obtain indoor apparatus of air conditioner.
Described judge module 20 is also for judging whether described condenser coil temperature is less than the second preset temperature;
In the present embodiment, the size of the second preset temperature can be arranged according to actual needs, and such as, the present embodiment is 45 DEG C for the second preset temperature and is described.It should be noted that, in other embodiments, the second preset temperature can also be set to other temperature values.
When described condenser coil temperature is less than described second preset temperature, described control module 30 is also for reducing the rotating speed of air conditioning chamber's inner blower.
In the present embodiment, after heating mode opened by air-conditioning, when condenser coil temperature is more than or equal to the second preset temperature, the frosting of the non-frosting of evaporimeter or current air-conditioner outdoor unit that are considered as air-conditioner outdoor unit does not affect the exchange heat of air-conditioner, now indoor set leaving air temp is higher, keep the rotating speed of outdoor fan of air-conditioner constant, such as, the rotating speed of outdoor fan keep 800 revs/min constant.
When condenser coil temperature is less than described second preset temperature, the frosting degree being considered as air-conditioner outdoor unit evaporimeter is larger, and the exchange heat that can affect between outdoor evaporator and outdoor air, therefore, by reducing the rotating speed of indoor fan, the condensing pressure of indoor set condenser can be improved, and then improve the temperature of condenser coil, keep the leaving air temp of indoor apparatus of air conditioner higher all the time, improve the comfort level of user.In addition, by reducing the rotating speed of indoor fan, the exchange heat between indoor condenser and room air can be reduced, therefore reduce further the frosting velocity of air-conditioner outdoor unit evaporimeter, avoiding air-conditioner defrosting action too frequent.
In the present embodiment, the concrete mode reducing outdoor fan rotating speed can be selected according to actual needs, such as, and can when condenser coil temperature be less than described second preset temperature, then disposable outdoor fan rotating speed is reduced to a preset value, such as, is reduced to 500 revs/min; Indoor fan rotating speed uniform descent can also be made, such as, reduction per minute 30 turns; One can also be preset about the function of condenser coil temperature and indoor fan rotating speed, determine the rotating speed of indoor fan according to the temperature of the condenser coil detected.
The air-conditioner that the present embodiment provides, after heating mode opened by air-conditioning, by detecting the condenser coil temperature of indoor apparatus of air conditioner, and when condenser coil temperature is less than the second preset temperature, reduce the rotating speed of air conditioning chamber's inner blower, thus improve the condensing pressure of indoor set condenser, and then improve the temperature of condenser coil, keep the leaving air temp of indoor apparatus of air conditioner higher all the time, improve the comfort level of user; In addition, the exchange heat between indoor condenser and room air can also be reduced, therefore reduce further the frosting velocity of air-conditioner outdoor unit evaporimeter, avoid air-conditioner defrosting action too frequent.
Further, in order to make air-conditioning enter defrosting mode more exactly, and avoid air-conditioner defrosting action too frequent further, in the present invention in a certain or all embodiments,
Described acquisition module 10 is also for continuing the evaporative coil temperature obtaining current air-conditioner outdoor unit;
In the present embodiment, evaporative coil temperature is detected in real time by the temperature sensor be arranged on the evaporation coil of off-premises station.
Described judge module 20 is also for judging whether described current evaporative coil temperature is less than the 3rd preset temperature;
In the present embodiment, the size of the 3rd preset temperature can be arranged according to actual needs, and such as, the present embodiment is-5 DEG C for the 3rd preset temperature and is described.It should be noted that in other embodiments, the 3rd preset temperature can also be set to other temperature values.
When described current evaporative coil temperature is less than the 3rd preset temperature, described control module 30 also opens defrosting mode for then controlling air-conditioning; Wherein, described first preset temperature is greater than described 3rd preset temperature.
When judge module 20 judges that the temperature of evaporation coil is less than the 3rd preset temperature, then control module 30 controls this air-conditioning and opens defrosting mode, and air-conditioner starts defrosting.
Further, in order to improve the comfort level of user when using air-condition device heats further, in the present invention in a certain or all embodiments,
Whether described judge module 20 also opens defrosting mode for judging that air-conditioning is current;
When the current unlatching defrosting mode of air-conditioning, described control module 30 is also for closing described indoor fan.
The present embodiment is by when defrosting mode opened by air-conditioning, and close chamber's inner blower, namely makes the rotating speed of above-mentioned indoor fan be reduced to zero, thus when the temperature that effectively prevent the condenser of indoor set is lower, the wind that indoor set blowout is colder.
Further, in order to improve the comfort level of user when using air-condition device heats further, in the present invention in a certain or all embodiments,
Whether described judge module 20 also closes defrosting mode for judging that air-conditioning is current, and opens heating mode;
When air-conditioning is current close defrosting mode and open heating mode time, described acquisition module 10 is also for continuing the condenser coil temperature obtaining current indoor apparatus of air conditioner;
In the present embodiment, condenser coil temperature is detected in real time by the temperature sensor be arranged on the condenser coil of indoor set.
Described judge module 20 is also for judging whether described current condenser coil temperature is greater than the 4th preset temperature;
In the present embodiment, the size of the 4th preset temperature can be arranged according to actual needs, and such as, the present embodiment is 23 DEG C for the 4th preset temperature and is described.It should be noted that in other embodiments, the 4th preset temperature can also be set to other temperature values.
When described current condenser coil temperature is greater than the 4th preset temperature, described control module 30 is also for opening described indoor fan.
When the present embodiment is by closing defrosting mode at air-conditioning and opening heating mode, judge whether current condenser coil temperature is greater than the 4th preset temperature, and when being greater than the 4th preset temperature Shi Zai opening chamber inner blower, thus ensure that the wind blown out by indoor set is always hot blast, improve the comfort level of user when using air-condition device heats further.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a control method for air-conditioner, is characterized in that, the control method of described air-conditioner comprises the following steps:
After heating mode opened by air-conditioning, obtain the evaporative coil temperature of air-conditioner outdoor unit;
Judge whether described evaporative coil temperature is less than the first preset temperature;
When described evaporative coil temperature is less than described first preset temperature, then increase the rotating speed of outdoor fan of air-conditioner.
2. the control method of air-conditioner as claimed in claim 1, it is characterized in that, the control method of described air-conditioner is further comprising the steps of:
After heating mode opened by air-conditioning, obtain the condenser coil temperature of indoor apparatus of air conditioner;
Judge whether described condenser coil temperature is less than the second preset temperature;
When described condenser coil temperature is less than described second preset temperature, then reduce the rotating speed of air conditioning chamber's inner blower.
3. the control method of air-conditioner as claimed in claim 2, is characterized in that, also comprise after the step of the rotating speed of described increase outdoor fan of air-conditioner:
Continue the evaporative coil temperature obtaining current air-conditioner outdoor unit;
Judge whether described current evaporative coil temperature is less than the 3rd preset temperature;
When described current evaporative coil temperature is less than the 3rd preset temperature, then controls air-conditioning and open defrosting mode;
Wherein, described first preset temperature is greater than described 3rd preset temperature.
4. the control method of air-conditioner as claimed in claim 3, is characterized in that, also comprise after the step of the rotating speed of described reduction air conditioning chamber inner blower:
Judge that air-conditioning is current and whether open defrosting mode;
When the current unlatching defrosting mode of air-conditioning, then close described indoor fan.
5. the control method of air-conditioner as claimed in claim 4, is characterized in that, also comprise after the step of the described indoor fan of described closedown:
Judge that air-conditioning is current and whether close defrosting mode, and open heating mode;
When air-conditioning is current close defrosting mode and open heating mode time, continue the condenser coil temperature obtaining current indoor apparatus of air conditioner;
Judge whether described current condenser coil temperature is greater than the 4th preset temperature;
When described current condenser coil temperature is greater than the 4th preset temperature, then open described indoor fan.
6. an air-conditioner, is characterized in that, described air-conditioner comprises:
Acquisition module, for after heating mode opened by air-conditioning, obtains the evaporative coil temperature of air-conditioner outdoor unit;
Judge module, for judging whether described evaporative coil temperature is less than the first preset temperature;
Control module, for when described evaporative coil temperature is less than described first preset temperature, then increases the rotating speed of outdoor fan of air-conditioner.
7. air-conditioner as claimed in claim 6, is characterized in that,
Described acquisition module also for after heating mode opened by air-conditioning, obtains the condenser coil temperature of indoor apparatus of air conditioner;
Described judge module is also for judging whether described condenser coil temperature is less than the second preset temperature;
Described control module also for when described condenser coil temperature is less than described second preset temperature, then reduces the rotating speed of air conditioning chamber's inner blower.
8. air-conditioner as claimed in claim 7, is characterized in that,
Described acquisition module is also for continuing the evaporative coil temperature obtaining current air-conditioner outdoor unit;
Described judge module is also for judging whether described current evaporative coil temperature is less than the 3rd preset temperature;
Described control module also for when described current evaporative coil temperature is less than the 3rd preset temperature, then controls air-conditioning and opens defrosting mode;
Wherein, described first preset temperature is greater than described 3rd preset temperature.
9. air-conditioner as claimed in claim 8, is characterized in that,
Whether described judge module also opens defrosting mode for judging that air-conditioning is current;
Described control module also for when the current unlatching defrosting mode of air-conditioning, then closes described indoor fan.
10. air-conditioner as claimed in claim 9, is characterized in that,
Whether described judge module also closes defrosting mode for judging that air-conditioning is current, and opens heating mode;
Described acquisition module also for when air-conditioning is current close defrosting mode and open heating mode time, continue the condenser coil temperature obtaining current indoor apparatus of air conditioner;
Described judge module is also for judging whether described current condenser coil temperature is greater than the 4th preset temperature;
Described control module also for when described current condenser coil temperature is greater than the 4th preset temperature, then opens described indoor fan.
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| CN201410652931.XA CN104501350A (en) | 2014-11-17 | 2014-11-17 | Air conditioner control method and air conditioner |
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| CN201410652931.XA CN104501350A (en) | 2014-11-17 | 2014-11-17 | Air conditioner control method and air conditioner |
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