CN103940040A - Air-conditioner and defrosting method and device of air-conditioner - Google Patents
Air-conditioner and defrosting method and device of air-conditioner Download PDFInfo
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- CN103940040A CN103940040A CN201410147970.4A CN201410147970A CN103940040A CN 103940040 A CN103940040 A CN 103940040A CN 201410147970 A CN201410147970 A CN 201410147970A CN 103940040 A CN103940040 A CN 103940040A
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Abstract
The invention discloses a defrosting method of an air-conditioner. The defrosting method of the air-conditioner comprises the following steps that when parts of outdoor units are operated by the air-conditioner, the working state information of all the outdoor units of the air-conditioner is acquired, wherein the outdoor units in the working state are first outdoor units and the outdoor units in the idle state are second outdoor units; the frosting state information of the first outdoor units is acquired; when the frosting state information of one certain first outdoor unit meets a preset defrosting condition, one second outdoor unit is used for replacing the first outdoor unit which meets the preset defrosting condition to conduct heat exchange operation. The invention further discloses a defrosting device of the air-conditioner and the air-conditioner. By means of the defrosting method of the air-conditioner, defrosting time intervals can be prolonged, and the influence of the defrosting process of the air-conditioner on indoor air temperatures is reduced.
Description
Technical field
The present invention relates to air conditioner controlling technology field, relate in particular to Defrost method and the device thereof of a kind of air-conditioner, air-conditioner.
Background technology
Air-conditioner is a kind of common household electrical appliance.When air-conditioner is when moving heating mode winter, because of refrigerant evaporation endothermic in outdoor heat exchanger, thus the surface temperature of reduction outdoor heat exchanger.As air-conditioner continuous service heating mode in the situation that outdoor temperature is extremely low, the surface of outdoor heat exchanger a large amount of frost that may condense, thus affect the normal work of air-conditioner.
Existing air-conditioner, when defrosting, is all that air-conditioner is switched to refrigeration mode, and refrigerant is condensation heat release in outdoor heat exchanger, has improved the surface temperature of outdoor heat exchanger, so that the frost condensing on outdoor heat exchanger is removed.But when air-conditioner switches to refrigeration mode, what indoor set blew out is cold wind, not only affects user's comfort, makes air-conditioner efficiency decline simultaneously.
Foregoing only, for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Main purpose of the present invention is to provide a kind of the have air-conditioner of identical inventive concept, the defrosting control method of air-conditioner and device thereof, is intended to reduce the impact of air-conditioner defrost process on indoor air temperature.
For achieving the above object, the invention provides a kind of Defrost method of air-conditioner, comprise the following steps:
When air-conditioner operation part off-premises station, obtain the work state information of all off-premises stations of described air-conditioner, in running order is the first off-premises station, in idle state is the second off-premises station;
Obtain the frosting status information of described the first off-premises station;
When having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
Preferably, the step of obtaining the frosting status information of described the first off-premises station described in also comprises afterwards:
When having the frosting status information of described the first off-premises station to reach default defrosting condition, judge whether described the second off-premises station all reaches default defrosting condition;
When described the second off-premises station all reaches default defrosting condition, control described the first off-premises station and described the second off-premises station all carries out defrost operation;
When having described the second off-premises station not reach default defrosting condition, adopt the second off-premises station that does not reach default defrosting condition to replace to reach the first off-premises station of default defrosting condition to carry out heat exchange operation.
Preferably, described when having the frosting status information of described the first off-premises station to reach default defrosting condition, the step that the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation specifically comprises:
When the frosting status information of described the first off-premises station reaches default defrosting condition, according to default off-premises station, switch priority, the first off-premises station of selecting described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
Preferably, described when having the frosting status information of described the first off-premises station to reach default defrosting condition, the step that the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation also comprises afterwards:
The blower fan of the first off-premises station that control is replaced is opened a Preset Time.
Preferably, the heat exchanger surface temperature information that described frosting status information is off-premises station or the heat exchanger surface frosting thickness information of off-premises station.
The present invention further proposes a kind of defroster of air-conditioner, comprising:
The first acquisition module, for when air-conditioner moves part off-premises station, obtains the work state information of all off-premises stations of described air-conditioner;
The second acquisition module, for obtaining the frosting status information of the first off-premises station;
Operational module, for when having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
Preferably, the defroster of described air-conditioner also comprises:
Judge module, for when having the frosting status information of described the first off-premises station to reach default defrosting condition, judges whether described the second off-premises station all reaches default defrosting condition;
Described operational module also when all reaching default defrosting condition when described the second off-premises station, is controlled described the first off-premises station and described the second off-premises station all carries out defrost operation; When having described the second off-premises station not reach default defrosting condition, adopt the second off-premises station that does not reach default defrosting condition to replace to reach the first off-premises station of default defrosting condition to carry out heat exchange operation.
Preferably, when described operational module reaches default defrosting condition specifically for the frosting status information when described the first off-premises station, according to default off-premises station, switch priority, the first off-premises station of selecting described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
Preferably, the defroster of described air-conditioner also comprises:
Blower fan opening module, for controlling unlatching one Preset Time of the first off-premises station being replaced.
Preferably, the heat exchanger surface temperature information that described frosting status information is off-premises station or the heat exchanger surface frosting thickness information of off-premises station.
The present invention further also proposes a kind of air-conditioner, the defroster that comprises air-conditioner, also comprise indoor set and many off-premises stations that are connected with described indoor set, when air-conditioner operation sub-load, part off-premises station in described many off-premises stations is opened, the defroster of described air-conditioner comprises: the first acquisition module, for when air-conditioner moves part off-premises station, obtains the work state information of all off-premises stations of described air-conditioner; The second acquisition module, for obtaining the frosting status information of the first off-premises station; Operational module, for when having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
The Defrost method of the air-conditioner that the present invention proposes, when air-conditioner operation part off-premises station, obtain the work state information of all off-premises stations of described air-conditioner, next obtains the frosting status information of described the first off-premises station, finally when having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation, it is the Defrost method of the air-conditioner that proposes of the present invention, at the off-premises station that uses other idle state, the off-premises station of replacing work at present and reaching default defrosting condition carries out heat exchange operation, thereby the off-premises station that not be used in work at present carries out defrost operation while reaching default defrosting condition at once, extended defrosting time interval, thereby reduced the impact of air-conditioner defrost process on indoor air temperature.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of Defrost method first embodiment of air-conditioner of the present invention;
Fig. 2 is the schematic flow sheet of Defrost method second embodiment of air-conditioner of the present invention;
Fig. 3 is the schematic flow sheet of Defrost method the 3rd embodiment of air-conditioner of the present invention;
Fig. 4 is the structural representation of defroster first embodiment of air-conditioner of the present invention;
Fig. 5 is the structural representation of defroster second embodiment of air-conditioner of the present invention;
Fig. 6 is the structural representation of defroster the 3rd embodiment of air-conditioner of the present invention;
Fig. 7 is the structural representation of the preferred embodiment of air-conditioner of the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention proposes a kind of Defrost method of air-conditioner.
With reference to Fig. 1, the schematic flow sheet of Defrost method the first embodiment that Fig. 1 is air-conditioner of the present invention.
The present invention proposes the first embodiment of the Defrost method of air-conditioner.In the present embodiment, the Defrost method of air-conditioner comprises the following steps:
Step S10, when air-conditioner operation part off-premises station, obtains the work state information of all off-premises stations of described air-conditioner;
Step S20, obtains the frosting status information of described the first off-premises station;
Step S30, when having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
In running order is the first off-premises station, and in idle state is the second off-premises station.
The Defrost method of the air-conditioner that the present invention proposes is applicable to the air-conditioning system of a plurality of off-premises station parallel connections, as the air-conditioning system of a plurality of outer machines to a plurality of interior machines.During air-conditioner operation part off-premises station, i.e. off-premises station operation sub-load, refers to that current air-conditioner do not open all off-premises stations.
Frosting status information is the heat exchanger surface frosting thickness information of heat exchanger surface temperature information or the off-premises station of off-premises station, certainly also can judge whether off-premises station needs to start defrosting by out of Memory.As heat exchanger information running time by outside air temperature and humidity information or off-premises station etc., the present invention is not construed as limiting this.Particularly, when judging by heat exchanger surface temperature information whether off-premises station reaches default defrosting condition, can be by judging whether heat exchanger surface temperature reaches default defrosting temperature (now default defrosting temperature is default defrosting condition), and heat exchanger surface temperature information can pass through temperature sensor measurement.When judging by heat exchanger surface frosting thickness information whether off-premises station reaches default defrosting condition, can be by judging whether heat exchanger surface frosting reaches default frosting thickness (now default frosting thickness is default defrosting condition).Heat exchanger surface frosting thickness information is with respect to heat exchanger surface temperature information, and it is high that the accuracy of its judgement is wanted, and can reflect more truly the heat exchanger surface frosting situation of off-premises station.
Particularly, step S30 specifically comprises: when the frosting status information of described the first off-premises station reaches default defrosting condition, according to default off-premises station, switch priority, the first off-premises station of selecting described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
Particularly, while being provided with three as the off-premises station of air-conditioner, setting the priority of No. one, No. two and No. three off-premises station and successively decrease.What first work is an off-premises station, when an off-premises station reaches default defrosting condition, according to priority slicing, be changed to No. two off-premises stations and carry out heat exchange operation, after No. two off-premises station work a period of times, while reaching default defrosting condition, switch to again No. three off-premises stations and carry out heat exchange operation.
The Defrost method of the air-conditioner that the present embodiment proposes, when air-conditioner operation part off-premises station, obtain the work state information of all off-premises stations of described air-conditioner, next obtains the frosting status information of described the first off-premises station, finally when having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation, it is the Defrost method of the air-conditioner that proposes of the present invention, at the off-premises station that uses other idle state, the off-premises station of replacing work at present and reaching default defrosting condition carries out heat exchange operation, thereby the off-premises station that not be used in work at present carries out defrost operation while reaching default defrosting condition at once, extended defrosting time interval, thereby reduced the impact of air-conditioner defrost process on indoor air temperature.
With reference to Fig. 2, the schematic flow sheet of Defrost method the second embodiment that Fig. 2 is air-conditioner of the present invention.
The present invention proposes the second embodiment of the Defrost method of air-conditioner.The present embodiment is different from above-mentioned the first embodiment, after step S20, also comprises:
Step S40; When having the frosting status information of described the first off-premises station to reach default defrosting condition, judge whether described the second off-premises station all reaches default defrosting condition; When described the second off-premises station all reaches default defrosting condition, execution step S50; When having described the second off-premises station not reach default defrosting condition, execution step S60;
Step S50; Control described the first off-premises station and described the second off-premises station all carries out defrost operation;
Step S60; Adopt the second off-premises station do not reach default defrosting condition to replace to reach the first off-premises station of default defrosting condition to carry out heat exchange operation.
While being provided with three as the off-premises station of air-conditioner, what first work is an off-premises station, when an off-premises station reaches default defrosting condition, according to priority slicing, be changed to No. two off-premises stations and carry out heat exchange operation, while reaching default defrosting condition after No. two off-premises station work a period of times, then switch to off-premises station No. three.After No. three off-premises station work a period of times, need switch to off-premises station No. one.Now, need to judge whether off-premises station all reaches default defrosting condition.When all off-premises stations all reach default defrosting condition, now non-outdoor unit can, for switching, therefore need to all carry out defrost operation by all off-premises stations.Be about to all off-premises stations and keep duty, air-conditioner is switched to refrigeration mode.After a period of time, then air-conditioner is switched to heating mode.
Specifically at the second off-premises station that judges idle state, whether all reaching default defrosting condition can be according to obtaining the judgements such as the heat exchanger surface temperature of the second off-premises station or the heat exchanger surface frosting thickness of the second off-premises station or current outside air temperature condition.
As off-premises station switched to successively to No. two during again to No. three off-premises stations.When No. three off-premises stations need be switched to an off-premises station again, obtain outside air temperature, when being greater than a preset value (as 0 degree Celsius), outside air temperature illustrates that now outside air temperature is higher, the heat exchanger surface frosting of an off-premises station naturalization is gone.Now air-conditioner does not need to move defrosting mode, directly switches to off-premises station No. one.
The Defrost method of the air-conditioner that the present embodiment proposes, by judging whether the second off-premises station all reaches default defrosting condition, when the second off-premises station all reaches default defrosting condition, control the first off-premises station and the second off-premises station and all carry out defrost operation, after being all switched, all off-premises stations carry out together defrost operation, thereby extended substantially defrosting time interval, reduced the impact of air-conditioner defrost process on indoor air temperature.
With reference to Fig. 3, the schematic flow sheet of the Defrost method that Fig. 3 is air-conditioner of the present invention the 3rd embodiment.
The present invention proposes the 3rd embodiment of the Defrost method of air-conditioner.The present embodiment is different from above-mentioned the first embodiment, after step S30, also comprises:
Step S70, the blower fan of controlling on the first off-premises station being replaced is opened a Preset Time.
When the first off-premises station reaches default defrosting condition and is stopped operation, control the blower fan of its first off-premises station and open, make heat exchanger and outdoor air on the first off-premises station carry out heat exchange to reach defrosting object.
Particularly, in the present embodiment, Preset Time is relevant with outdoor environmental conditions.When outside air temperature is higher, Preset Time can arrange shorter; When outside air temperature is lower, Preset Time can arrange longer.
The Defrost method of the air-conditioner that the present embodiment proposes, the blower fan of the first off-premises station being replaced by control is opened a Preset Time, has improved the defrosting efficiency of this air-conditioner.When outside air temperature is higher, by opening blower fan a period of time, carry out natural heat-exchange, can reach off-premises station defrosting effect, thereby greatly extended defrosting time interval, reduced the impact of air-conditioner defrost process on indoor air temperature, and then reach air-conditioner and do not switching to the effect that just can reach defrosting in refrigeration mode situation, realized air-conditioner continue heat.When even outside air temperature is lower, in the time of can not reaching the object of defrosting completely by opening blower fan, open blower fan and also improved defrosting efficiency, reduce air-conditioner and switching to the running time of refrigeration mode with defrosting.
The present invention further proposes a kind of defroster of air-conditioner.
With reference to Fig. 4, the structural representation of defroster the first embodiment that Fig. 4 is air-conditioner of the present invention.
The first embodiment of the defroster of the air-conditioner that the present invention proposes.In the present embodiment, defroster comprises:
The first acquisition module 10, for when air-conditioner moves part off-premises station, obtains the work state information of all off-premises stations of described air-conditioner;
The second acquisition module 20, for obtaining the frosting status information of the first off-premises station;
Operational module 30, for when having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
Particularly, when operational module 30 reaches default defrosting condition specifically for the frosting status information when described the first off-premises station, according to default off-premises station, switch priority, the first off-premises station of selecting described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
In the present embodiment, current in running order off-premises station is called the first off-premises station, and the off-premises station of current idle state is called the second off-premises station.Frosting status information is the heat exchanger surface frosting thickness information of heat exchanger surface temperature information or the off-premises station of off-premises station, certainly also can judge whether off-premises station needs to start defrosting by out of Memory.As heat exchanger information running time by outside air temperature and humidity information or off-premises station etc., the present invention is not construed as limiting this.Particularly, when judging by heat exchanger surface temperature information whether off-premises station reaches default defrosting condition, can be by judging whether heat exchanger surface temperature reaches default defrosting temperature (now default defrosting temperature is default defrosting condition), and heat exchanger surface temperature information can pass through temperature sensor measurement.When judging by heat exchanger surface frosting thickness information whether off-premises station reaches default defrosting condition, can be by judging whether heat exchanger surface frosting reaches default frosting thickness (now default frosting thickness is default defrosting condition).Heat exchanger surface frosting thickness information is with respect to heat exchanger surface temperature information, and it is high that the accuracy of its judgement is wanted, and can reflect more truly the heat exchanger surface frosting situation of off-premises station.
Particularly, while being provided with three as the off-premises station of air-conditioner, setting the priority of No. one, No. two and No. three off-premises station and successively decrease.What first work is an off-premises station, when an off-premises station reaches default defrosting condition, according to priority slicing, be changed to No. two off-premises stations and carry out heat exchange operation, after No. two off-premises station work a period of times, while reaching default defrosting condition, switch to again No. three off-premises stations and carry out heat exchange operation.
The defroster of the air-conditioner that the present embodiment proposes, when air-conditioner operation part off-premises station, first the first acquisition module 10 obtains the work state information of all off-premises stations of described air-conditioner, then the second acquisition module 20 obtains the frosting status information of the first off-premises station, finally when having the frosting status information of the first off-premises station to reach default defrosting condition, the first off-premises station that operational module 30 adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation, it is the defroster of the air-conditioner that proposes of the present invention, at the off-premises station that uses other idle state, the off-premises station of replacing work at present and reaching default defrosting condition carries out heat exchange operation, thereby the off-premises station that not be used in work at present carries out defrost operation while reaching default defrosting condition at once, extended defrosting time interval, thereby reduced the impact of air-conditioner defrost process on indoor air temperature.
With reference to Fig. 5, the structural representation of defroster the second embodiment that Fig. 5 is air-conditioner of the present invention.
Based on above-mentioned the first embodiment, the second embodiment of the defroster of air-conditioner is proposed.In the present embodiment, the defroster of air-conditioner also comprises:
Judge module 40, when having the frosting status information of described the first off-premises station to reach default defrosting condition, judges whether described the second off-premises station all reaches default defrosting condition;
Wherein, operational module 30 also when all reaching default defrosting condition when described the second off-premises station, is controlled described the first off-premises station and described the second off-premises station all carries out defrost operation; When having described the second off-premises station not reach default defrosting condition, adopt the second off-premises station that does not reach default defrosting condition to replace to reach the first off-premises station of default defrosting condition to carry out heat exchange operation.
While being provided with three as the off-premises station when air-conditioner, what first work is an off-premises station, when an off-premises station reaches default defrosting condition, according to priority slicing, be changed to No. two off-premises stations and carry out heat exchange operation, while reaching default defrosting condition after No. two off-premises station work a period of times, then switch to off-premises station No. three.After No. three off-premises station work a period of times, need switch to off-premises station No. one.Now, need to judge whether off-premises station all reaches default defrosting condition.When all off-premises stations all reach default defrosting condition, now non-outdoor unit can, for switching, therefore need to all carry out defrost operation by all off-premises stations.Be about to all off-premises stations and keep duty, air-conditioner is switched to refrigeration mode.After a period of time, then air-conditioner is switched to heating mode.
Specifically judge whether the second off-premises station all reaches default defrosting condition can be according to obtaining the judgements such as the heat exchanger surface temperature of the second off-premises station or the heat exchanger surface frosting thickness of the second off-premises station or current outside air temperature condition.
As off-premises station switched to successively to No. two during again to No. three off-premises stations.When No. three off-premises stations need be switched to an off-premises station again, obtain outside air temperature, when being greater than a preset value (as 0 degree Celsius), outside air temperature illustrates that now outside air temperature is higher, the heat exchanger surface frosting of an off-premises station naturalization is gone.Now air-conditioner does not need to move defrosting mode, directly switches to off-premises station No. one.
The defroster of the air-conditioner that the present embodiment proposes, judge module 40 judges whether the second off-premises station all reaches default defrosting condition, when the second off-premises station all reaches default defrosting condition, operational module 30 controls described the first off-premises station and described the second off-premises station all carries out defrost operation, after being all switched, all off-premises stations carry out together defrost operation, thereby extended substantially defrosting time interval, reduced the impact of air-conditioner defrost process on indoor air temperature.
With reference to Fig. 6, the structural representation of the defroster that Fig. 6 is air-conditioner of the present invention the 3rd embodiment.
Based on above-mentioned the first embodiment, the 3rd embodiment of the defroster of air-conditioner is proposed.In the present embodiment, the defroster of air-conditioner also comprises:
Blower fan opening module 50, opens a Preset Time for controlling the blower fan of the first off-premises station being replaced.
When the first off-premises station reaches default defrosting condition and is stopped operation, control the blower fan unlatching arranging it on, make the heat exchanger of the first off-premises station and outdoor air carry out heat exchange to reach defrosting object.
Particularly, in the present embodiment, Preset Time is relevant with outdoor environmental conditions.When outside air temperature is higher, Preset Time can arrange shorter; When outside air temperature is lower, Preset Time can arrange longer.
The defroster of the air-conditioner that the present embodiment proposes, the blower fan of controlling the first off-premises station being replaced by blower fan opening module 50 is opened a Preset Time, has improved the defrosting efficiency of this air-conditioner.When outside air temperature is higher, by opening blower fan a period of time, carry out natural heat-exchange, can reach the heat exchanger defrosting effect to off-premises station, thereby greatly extended defrosting time interval, reduced the impact of air-conditioner defrost process on indoor air temperature, and then reach air-conditioner and do not switching to the effect that just can reach defrosting in refrigeration mode situation, realized air-conditioner continue heat.When even outside air temperature is lower, in the time of can not reaching the object of defrosting completely by opening blower fan, open blower fan and also improved defrosting efficiency, reduce air-conditioner and switching to the running time of refrigeration mode with defrosting.
The present invention further also proposes a kind of air-conditioner.
With reference to Fig. 7, the structural representation of the preferred embodiment that Fig. 7 is air-conditioner of the present invention.
In this preferred embodiment, air-conditioner comprises the defroster of air-conditioner, also comprises indoor set 70 and many off-premises stations 80 that are connected with indoor set 70, and when air-conditioner operation sub-load, the part off-premises station 80 in many off-premises stations 80 is opened.Wherein, the concrete structure of the defroster of air-conditioner, with reference to above-described embodiment, does not repeat them here.Part off-premises station 80 is opened and is referred to not open all off-premises stations 80.It should be noted that, in the air-conditioner shown in Fig. 7, off-premises station 80 has 3, and indoor set 70 is provided with 6 quantity that do not represent the off-premises station 80 with the indoor set 70 that limit air-conditioner, as long as air-conditioner is provided with many off-premises station 80(and is more than or equal to two).
The air-conditioner that the present embodiment proposes, when air-conditioner operation part off-premises station 80, first the first acquisition module of the defroster of air-conditioner obtains the work state information of all off-premises stations 80 of described air-conditioner, then the second acquisition module obtains the frosting status information of the first off-premises station, finally when having the frosting status information of the first off-premises station to reach default defrosting condition, the first off-premises station that operational module adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation, it is the defroster of the air-conditioner that proposes of the present invention, at the off-premises station 80 that uses other idle state, the off-premises station 80 of replacing work at present and reaching default defrosting condition carries out heat exchange operation, thereby the off-premises station 80 that not be used in work at present carries out defrost operation while reaching default defrosting condition at once, extended defrosting time interval, thereby reduced the impact of air-conditioner defrost process on indoor air temperature.
These are only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes description of the present invention and accompanying drawing content to do, 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 (11)
1. a Defrost method for air-conditioner, is characterized in that, comprises the following steps:
When air-conditioner operation part off-premises station, obtain the work state information of all off-premises stations of described air-conditioner, in running order is the first off-premises station, in idle state is the second off-premises station;
Obtain the frosting status information of described the first off-premises station;
When having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
2. the Defrost method of air-conditioner as claimed in claim 1, is characterized in that, described in also comprise after obtaining the step of frosting status information of described the first off-premises station:
When having the frosting status information of described the first off-premises station to reach default defrosting condition, judge whether described the second off-premises station all reaches default defrosting condition;
When described the second off-premises station all reaches default defrosting condition, control described the first off-premises station and described the second off-premises station all carries out defrost operation;
When having described the second off-premises station not reach default defrosting condition, adopt the second off-premises station that does not reach default defrosting condition to replace to reach the first off-premises station of default defrosting condition to carry out heat exchange operation.
3. the Defrost method of air-conditioner as claimed in claim 1, it is characterized in that, described when having the frosting status information of described the first off-premises station to reach default defrosting condition, the step that the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation specifically comprises:
When the frosting status information of described the first off-premises station reaches default defrosting condition, according to default off-premises station, switch priority, the first off-premises station of selecting described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
4. the Defrost method of air-conditioner as claimed in claim 1, it is characterized in that, described when having the frosting status information of described the first off-premises station to reach default defrosting condition, the step that the first off-premises station that adopts described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation also comprises afterwards:
The blower fan of the first off-premises station that control is replaced is opened a Preset Time.
5. the Defrost method of the air-conditioner as described in any one in claim 1 to 4, is characterized in that, the heat exchanger surface frosting thickness information of the heat exchanger surface temperature information that described frosting status information is off-premises station or off-premises station.
6. a defroster for air-conditioner, is characterized in that, comprising:
The first acquisition module, for when air-conditioner moves part off-premises station, obtains the work state information of all off-premises stations of described air-conditioner;
The second acquisition module, for obtaining the frosting status information of the first off-premises station;
Operational module, for when having the frosting status information of described the first off-premises station to reach default defrosting condition, the first off-premises station that adopts the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
7. the defroster of air-conditioner as claimed in claim 6, is characterized in that, also comprises:
Judge module, for when having the frosting status information of described the first off-premises station to reach default defrosting condition, judges whether described the second off-premises station all reaches default defrosting condition;
Described operational module also when all reaching default defrosting condition when described the second off-premises station, is controlled described the first off-premises station and described the second off-premises station all carries out defrost operation; When having described the second off-premises station not reach default defrosting condition, adopt the second off-premises station that does not reach default defrosting condition to replace to reach the first off-premises station of default defrosting condition to carry out heat exchange operation.
8. the defroster of air-conditioner as claimed in claim 6, it is characterized in that, when described operational module reaches default defrosting condition specifically for the frosting status information when described the first off-premises station, according to default off-premises station, switch priority, the first off-premises station of selecting described the second off-premises station replacement to reach default defrosting condition carries out heat exchange operation.
9. the defroster of air-conditioner as claimed in claim 6, is characterized in that, also comprises:
Blower fan opening module, for controlling unlatching one Preset Time of the first off-premises station being replaced.
10. the defroster of the air-conditioner as described in any one in claim 6 to 9, is characterized in that, the heat exchanger surface frosting thickness information of the heat exchanger surface temperature information that described frosting status information is off-premises station or off-premises station.
11. 1 kinds of air-conditioners, it is characterized in that, comprise the defroster of the air-conditioner as described in any one in claim 6 to 10, also comprise indoor set and many off-premises stations that are connected with described indoor set, when air-conditioner operation sub-load, the part off-premises station in described many off-premises stations is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410147970.4A CN103940040A (en) | 2014-04-14 | 2014-04-14 | Air-conditioner and defrosting method and device of air-conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410147970.4A CN103940040A (en) | 2014-04-14 | 2014-04-14 | Air-conditioner and defrosting method and device of air-conditioner |
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| CN103940040A true CN103940040A (en) | 2014-07-23 |
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| CN107643016A (en) * | 2017-10-10 | 2018-01-30 | 广东美的制冷设备有限公司 | The self cleaning method and air conditioner of heat exchanger of air conditioner |
| WO2023071152A1 (en) * | 2021-10-28 | 2023-05-04 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method, control apparatus, and air conditioner |
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