CN104930674B - Defrosting control method and device for outdoor unit of air conditioning unit and air conditioning system - Google Patents
Defrosting control method and device for outdoor unit of air conditioning unit and air conditioning system Download PDFInfo
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- CN104930674B CN104930674B CN201510246347.9A CN201510246347A CN104930674B CN 104930674 B CN104930674 B CN 104930674B CN 201510246347 A CN201510246347 A CN 201510246347A CN 104930674 B CN104930674 B CN 104930674B
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- Prior art keywords
- air
- defrost
- temperature
- conditioner set
- outdoor fan
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000010257 thawing Methods 0.000 title claims abstract description 35
- 238000004378 air conditioning Methods 0.000 title claims abstract description 28
- 238000010792 warming Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a defrosting control method and device for an outdoor unit of an air conditioning unit and an air conditioning system. The method comprises the following steps: acquiring the ambient temperature of the outdoor unit, the temperature of a pipe of the outdoor unit and the running current of an outdoor fan; when the operating current of the outdoor fan reaches a preset current value and the pipe temperature reaches a preset defrosting temperature, controlling the air conditioning unit to start defrosting; the preset defrosting temperature is determined by the ambient temperature; when the time that the operating current of the outdoor fan reaches a preset current value exceeds a first preset time, controlling the air conditioning unit to start defrosting; acquiring the running current of an outdoor fan after the air conditioning unit starts defrosting; and when the running current of the outdoor fan after the air conditioning unit starts defrosting is smaller than the preset current value, controlling the air conditioning unit to stop defrosting. By adopting the technical scheme provided by the invention, the heating comfort of the air conditioning unit can be improved.
Description
Technical field
The present invention relates to control technology field, more particularly to air-conditioner set outdoor unit defrosting control method, device and air-conditioning
System.
Background technology
In current economic society, air-conditioning is with its good refrigeration, heating and other effects, using than wide.
In the winter time, air-conditioning heating is generally required, for the more comfortable temperature of indoor creation, to resist outdoor severe cold.Winter
Season air humidity it is larger when, air-conditioning heating mode run a period of time after, the vapor in outdoor air can be in air-conditioning
Frosting on outdoor unit fin, is then frozen into ice cube, if not defrosting, air-conditioner outdoor unit can be blocked by ice cube, can cause air conditioning chamber
Refrigerant can not evaporate in outer machine, hypotony, air-conditioner set is jumped low-voltage variation, shut down.Therefore, air-conditioner set defrosts
It is necessary and important.In the prior art, according to the outdoor environment temperature and outdoor Guan Wen detected, determining whether to start or
Terminate defrost.
But in the prior art, the influence of frost water during due to defrost, the outdoor environment temperature detected and outdoor Guan Wen are
Deviation is likely to occur, therefore, causes air-conditioner outdoor unit to enter defrost and terminate defrost all not in time, or even defrost by mistake occurs
Situation, cause air-conditioner set heating comfortableness poor.
The content of the invention
In view of this, the invention provides a kind of air-conditioner set outdoor unit defrosting control method, device and air-conditioning system, use
Enter defrost and end defrost all not in time to solve air-conditioner set in the prior art, or even the problem of defrost by mistake occur, improve
Air-conditioner set heats comfortableness.
To achieve the above object, the present invention provides following technical scheme：
A kind of air-conditioner set outdoor unit defrosting control method, including：
Obtain environment temperature, the gentle outdoor fan running current of the pipe of the outdoor unit of the outdoor unit；
When the outdoor fan running current reaches pre-set current value, when the Guan Wen reaches default defrost temperature, control
The air-conditioner set starts defrost；The default defrost temperature is determined by the environment temperature；
When the outdoor fan running current reaches the time of pre-set current value more than the first preset time, described in control
Air-conditioner set starts defrost；
Obtain the air-conditioner set and start the outdoor fan running current after defrost；
When the outdoor fan running current after the air-conditioner set starts defrost is less than the pre-set current value, institute is controlled
State air-conditioner set and stop defrost.
Preferably, the gentle outdoor fan operation electricity of the environment temperature for obtaining the outdoor unit, the pipe of the outdoor unit
Before stream, in addition to：
Before the compressor unlatching for obtaining the air-conditioner set, the initial launch electric current of the outdoor fan；
When the product of the initial launch electric current and the first preset constant exceedes the pre-set current value, the sky is controlled
Unit is adjusted to start defrost.
Preferably, before the acquisition air-conditioner set starts the outdoor fan running current after defrost, in addition to：
When the environment temperature, which is consistently less than preset temperature, reaches the second preset time, the air-conditioner set is controlled to start
Defrost.
Preferably, the preset temperature is subzero 15 DEG C.
Preferably, in addition to：
When the outdoor fan running current, during more than the product of the pre-set current value and the second preset constant, control
The air-conditioner set outdoor unit performs cleaning operation.
A kind of air-conditioner set outdoor unit defrosting control device, including：
First acquisition unit, for obtain the environment temperature of the outdoor unit, the outdoor unit the gentle outdoor fan of pipe
Running current；
First control unit, for reaching pre-set current value when the outdoor fan running current, the Guan Wen reaches pre-
If during defrost temperature, the air-conditioner set is controlled to start defrost；The default defrost temperature is determined by the environment temperature；
Second control unit, the time for reaching pre-set current value when the outdoor fan running current are pre- more than first
If during the time, the air-conditioner set is controlled to start defrost；
Second acquisition unit, start the outdoor fan running current after defrost for obtaining the air-conditioner set；
3rd control unit, it is less than for the outdoor fan running current after air-conditioner set starts defrost described pre-
If during current value, the air-conditioner set is controlled to stop defrost.
Preferably, in addition to：
3rd acquiring unit, before the compressor for obtaining the air-conditioner set is opened, the initial fortune of the outdoor fan
Row electric current；
4th control unit, exceed the default electricity for the product when the initial launch electric current and the first preset constant
During flow valuve, the air-conditioner set is controlled to start defrost.
Preferably, in addition to：
5th control unit, for when the environment temperature is consistently less than preset temperature and reaches the second preset time, controlling
Make the air-conditioner set and start defrost.
Preferably, in addition to：
6th control unit, for when the outdoor fan running current, being preset more than the pre-set current value and second
During the product of constant, the air-conditioner set outdoor unit is controlled to perform cleaning operation.
A kind of air-conditioning system, including：
Air-conditioner set and controller, the air-conditioner set include outdoor unit, and the outdoor unit includes circumstance temperature temperature-sensitive bag, Guan Wen
Temperature-sensitive bag and outdoor fan module, the controller and the circumstance temperature temperature-sensitive bag, the pipe warming thermometer bulb and the outdoor fan
Module is respectively connected with；
The circumstance temperature temperature-sensitive bag is used for the environment temperature for detecting the outdoor unit；The pipe warming thermometer bulb is described for detecting
The Guan Wen of outdoor unit；The outdoor fan module is used for the running current for detecting outdoor fan；
The control process of the controller includes, and environment temperature, the pipe of the outdoor unit for obtaining the outdoor unit are gentle
Outdoor fan running current, when the outdoor fan running current reaches pre-set current value, the Guan Wen reaches default defrost temperature
When spending, the air-conditioner set is controlled to start defrost, the default defrost temperature is determined by the environment temperature, when the outdoor wind
When machine running current reaches the time of pre-set current value more than the first preset time, control the air-conditioner set to start defrost, obtain
The air-conditioner set is taken to start the outdoor fan running current after defrost, the outdoor fan after air-conditioner set starts defrost
When running current is less than the pre-set current value, the air-conditioner set is controlled to stop defrost.
Understand that compared with prior art, the invention provides a kind of air-conditioner set outdoor unit via above-mentioned technical scheme
Defrosting control method, device and air-conditioning system.Using technical scheme provided by the invention, the operation of air-conditioner set outdoor fan is introduced
Electric current obtains environment temperature, the institute of the outdoor unit as an other standard for judging whether to enter or exiting defrost first
State the gentle outdoor fan running current of pipe of outdoor unit；When the outdoor fan running current reaches pre-set current value, the pipe
When temperature reaches default defrost temperature, the air-conditioner set is controlled to start defrost, the default defrost temperature is by the environment temperature
It is determined that making control air-conditioner set more accurate into defrost, prevent from individually judging that pipe temperature may caused mistakeization in the prior art
Frost operation；When the outdoor fan running current reaches the time of pre-set current value more than the first preset time, described in control
Air-conditioner set starts defrost, when can avoid the pipe temperature from deviation occur, may caused by the problem of entering defrost not in time；Obtain institute
State air-conditioner set and start the outdoor fan running current after defrost；Outdoor fan operation after the air-conditioner set starts defrost
When electric current is less than the pre-set current value, control the air-conditioner set to stop defrost, can avoid during defrost due to melting
Part frost water caused by pipe temperature there is the situation of distortion, so as to avoid exiting defrost not in time.Therefore, skill provided by the invention
Art scheme, by introducing air-conditioner set outdoor fan running current this reference quantity, it can effectively solve the problem that in the prior art and occur
Entrance or terminate defrost not in time situations such as, so as to improve air-conditioner set heating comfortableness.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of air-conditioner set outdoor unit defrosting control method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another air-conditioner set outdoor unit defrosting control method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another air-conditioner set outdoor unit defrosting control method provided in an embodiment of the present invention；
Fig. 4 is a kind of structure chart of air-conditioner set outdoor unit defrosting control device provided in an embodiment of the present invention；
Fig. 5 is a kind of structure chart of air-conditioning system provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Embodiment one
Referring to Fig. 1, Fig. 1 is a kind of flow of air-conditioner set outdoor unit defrosting control method provided in an embodiment of the present invention
Figure.As shown in figure 1, this method includes：
Step S101, obtain environment temperature, the gentle outdoor fan running current of the pipe of the outdoor unit of the outdoor unit；
Specifically, obtaining the environment temperature of the outdoor unit by the circumstance temperature temperature-sensitive bag of air-conditioner set outdoor unit, pass through sky
Adjust the pipe warming thermometer bulb of unit outdoor unit to obtain the Guan Wen of the outdoor unit, pass through the outdoor fan module of air-conditioner set outdoor unit
Obtain outdoor fan running current.
Step S102, when the outdoor fan running current reaches pre-set current value, the Guan Wen reaches default defrost temperature
When spending, the air-conditioner set is controlled to start defrost；
Specifically, the default defrost temperature is determined by the environment temperature, corresponding to the different environment temperatures
The default defrost temperature is different, and the environment temperature is higher, and the corresponding default defrost temperature is also higher.When the room
After outer blower fan running current reaches pre-set current value, as long as the Guan Wen reaches default defrost temperature, the air conditioner is just controlled
Group starts defrost, and control is more accurate, prevents from individually judging the possible caused defrosting operation by mistake of pipe temperature in the prior art, that is, prevents
There is frost layer small volume and do not need the maloperation for but entering defrost during defrost.The pre-set current value is the number being manually set
Value, specifically, with reference to when air-conditioning enters defrost under multiple actual condition, the running current value of the outdoor fan.
It should be noted that by test of many times under actual condition, the creative discovery of inventor, outdoor fan is not
Have a significant change with its running current in the case of frosting volume, the running current of outdoor fan with the increase of frosting volume and
Increase, when the volume of frosting increases to a certain amount of, air-conditioner set enters defrost, and now the running current of outdoor fan reaches
Maximum, keep the maximum constant during defrost, after defrost terminates, the running current of outdoor fan is gradually reduced.Cause
This, the creative air-conditioner set outdoor fan running current conduct that introduces of inventor judges whether air-conditioner set enters or move back
Go out an other foundation for defrosting, and based on this, it is proposed that technical scheme.
Step S103, when the outdoor fan running current reaches the time of pre-set current value more than the first preset time
When, control the air-conditioner set to start defrost；
Specifically, the execution of the step S103, when can avoid the pipe temperature from deviation occur, may caused by enter defrost not
The problem of timely.
Step S104, obtain the air-conditioner set and start the outdoor fan running current after defrost；
Step S105, the outdoor fan running current after air-conditioner set starts defrost are less than the pre-set current value
When, control the air-conditioner set to stop defrost.
Specifically, the implementation of the step S105, can avoid during defrost due to caused by the part frost water of thawing
There is the situation of distortion in pipe temperature, so as to avoid exiting defrost not in time.
The technical scheme provided using the embodiment of the present invention one, air-conditioner set outdoor fan running current is introduced as in addition
One standard for judging whether to enter or exiting defrost, environment temperature, the pipe of the outdoor unit of the outdoor unit are obtained first
Gentle outdoor fan running current；When the outdoor fan running current reaches pre-set current value, the Guan Wen reaches defaultization
During white temperature, the air-conditioner set is controlled to start defrost, the default defrost temperature is determined by the environment temperature, makes control empty
Adjust unit more accurate into defrost, prevent from individually judging that pipe temperature may caused defrosting operation by mistake in the prior art；When described
When outdoor fan running current reaches the time of pre-set current value more than the first preset time, the air-conditioner set beginning is controlled
Frost, when can avoid the pipe temperature from deviation occur, may caused by the problem of entering defrost not in time；The air-conditioner set is obtained to start
Outdoor fan running current after defrost；Outdoor fan running current after the air-conditioner set starts defrost is less than described pre-
If during current value, control the air-conditioner set to stop defrost, can avoid during defrost because the part frost water of thawing causes
Pipe temperature there is the situation of distortion, so as to avoid exiting defrost not in time.Therefore, technical scheme provided by the invention, by drawing
Enter air-conditioner set outdoor fan running current this reference quantity, can effectively solve the problem that the entrance or end occurred in the prior art
Defrost not in time situations such as, so as to improve air-conditioner set heating comfortableness.
In order to further improve technical scheme provided by the invention, invention additionally discloses another specific embodiment.
Embodiment two
Referring to Fig. 2, Fig. 2 is another air-conditioner set outdoor unit defrosting control method provided in an embodiment of the present invention
Flow chart.As shown in Fig. 2 this method includes：
Step S201, obtain environment temperature, the gentle outdoor fan running current of the pipe of the outdoor unit of the outdoor unit；
Step S202, when the outdoor fan running current reaches pre-set current value, the Guan Wen reaches default defrost temperature
When spending, the air-conditioner set is controlled to start defrost；The default defrost temperature is determined by the environment temperature；
Step S203, when the outdoor fan running current reaches the time of pre-set current value more than the first preset time
When, control the air-conditioner set to start defrost；
Step S204, when the environment temperature, which is consistently less than preset temperature, reaches the second preset time, control the sky
Unit is adjusted to start defrost；
Specifically, optional, the preset temperature is subzero 15 DEG C.Optionally, it is small to be at least 4 for second preset time
When.When the environment temperature is less than preset temperature, running current president's time-preserving of the outdoor fan, Wu Fada
To the pre-set current value, for this reason, it may be necessary to after air-conditioner set runs a period of time (i.e. the second preset time), active control is empty
Unit is adjusted to start defrost.
Step S205, obtain the air-conditioner set and start the outdoor fan running current after defrost；
Step S206, the outdoor fan running current after air-conditioner set starts defrost are less than the pre-set current value
When, control the air-conditioner set to stop defrost.
The technical scheme that the embodiment of the present invention two provides, there is provided (ambient temperature is low for a long time in long-time severe cold
In preset temperature) in the case of, how to control air-conditioner set to enter the method for defrost.
In order to further improve technical scheme provided by the invention, invention additionally discloses another specific embodiment.
Embodiment three
Referring to Fig. 3, Fig. 3 is another air-conditioner set outdoor unit defrosting control method provided in an embodiment of the present invention
Flow chart.As shown in figure 3, this method includes：
Step S301, before the compressor unlatching for obtaining the air-conditioner set, the initial launch electric current of the outdoor fan；
Specifically, when air-conditioner set is run, before compressor is opened, outdoor fan is opened prior to compressor, now, outdoor
The running current of blower fan is the maximum of outdoor fan normal operating current.
Step S302, when the product of the initial launch electric current and the first preset constant exceedes pre-set current value, control
The air-conditioner set starts defrost；
Specifically, when the product of the initial launch electric current and the first preset constant exceedes the pre-set current value, then
It is determined that now air-conditioner set outdoor unit has frost layer, and blocked up with slightly dirty, now control the air-conditioner set to start defrost, by means of frost
The thawing of layer eliminates dirty stifled.Specifically, first preset constant is more than 1.
Step S303, obtain environment temperature, the gentle outdoor fan running current of the pipe of the outdoor unit of the outdoor unit；
Step S304, when the outdoor fan running current reaches pre-set current value, the Guan Wen reaches default defrost temperature
When spending, the air-conditioner set is controlled to start defrost；The default defrost temperature is determined by the environment temperature；
Step S305, when the outdoor fan running current reaches the time of pre-set current value more than the first preset time
When, control the air-conditioner set to start defrost；
Step S306, obtain the air-conditioner set and start the outdoor fan running current after defrost；
Step S307, the outdoor fan running current after air-conditioner set starts defrost are less than the pre-set current value
When, control the air-conditioner set to stop defrost；
Step S308, when the outdoor fan running current, more than multiplying for the pre-set current value and the second preset constant
During product, the air-conditioner set outdoor unit is controlled to perform cleaning operation.
Specifically, work as the outdoor fan running current, more than the pre-set current value and the product of the second preset constant
When, it may be determined that now the air-conditioner set outdoor unit is dirty stifled more serious, then controls the air-conditioner set outdoor unit to perform
Cleaning operation, air-conditioner set is set to recover normal operation.Specifically, second preset constant is more than 1.
The technical scheme that the embodiment of the present invention three provides, it is as air-conditioner set introducing the outdoor fan running current
No entrance is exited on the basis of the reference factor of defrost, is further disclosed in the dirty stifled situation with frost layer and dirty stifled tight
In the case of weight, necessary operation how is carried out to make the method for air-conditioner set normal operation.
In order to more comprehensively illustrate technical scheme provided by the invention, corresponding to air conditioner provided in an embodiment of the present invention
Group outdoor unit defrosting control method, the further open air-conditioner set outdoor unit defrosting control device of the present invention.
Referring to Fig. 4, Fig. 4 is a kind of structure of air-conditioner set outdoor unit defrosting control device provided in an embodiment of the present invention
Figure.As shown in figure 4, the device includes：
First acquisition unit 401, for obtain the environment temperature of the outdoor unit, the outdoor unit the gentle outdoor wind of pipe
Machine running current；
First control unit 402, for reaching pre-set current value when the outdoor fan running current, the Guan Wen reaches
During default defrost temperature, the air-conditioner set is controlled to start defrost；The default defrost temperature is determined by the environment temperature；
Second control unit 403, for reaching the time of pre-set current value when the outdoor fan running current more than
During one preset time, the air-conditioner set is controlled to start defrost；
Second acquisition unit 404, start the outdoor fan running current after defrost for obtaining the air-conditioner set；
3rd control unit 405, it is less than institute for the outdoor fan running current after air-conditioner set starts defrost
When stating pre-set current value, the air-conditioner set is controlled to stop defrost.
Further, air-conditioner set outdoor unit defrosting control device provided in an embodiment of the present invention, in addition to：
3rd acquiring unit, before the compressor for obtaining the air-conditioner set is opened, the initial fortune of the outdoor fan
Row electric current；
4th control unit, exceed the default electricity for the product when the initial launch electric current and the first preset constant
During flow valuve, the air-conditioner set is controlled to start defrost；
5th control unit, for when the environment temperature is consistently less than preset temperature and reaches the second preset time, controlling
Make the air-conditioner set and start defrost；
6th control unit, for when the outdoor fan running current, being preset more than the pre-set current value and second
During the product of constant, the air-conditioner set outdoor unit is controlled to perform cleaning operation.
In order to more comprehensively illustrate technical scheme provided by the invention, invention additionally discloses a kind of air-conditioning system.
Referring to Fig. 5, Fig. 5 is a kind of structure chart of air-conditioning system provided in an embodiment of the present invention.As shown in Fig. 5, this is
System includes：
Air-conditioner set and controller 51, the air-conditioner set include outdoor unit 52, and the outdoor unit 52 includes circumstance temperature temperature-sensitive
Bag 521, pipe warming thermometer bulb 522 and outdoor fan module 523, the controller 51 and the circumstance temperature temperature-sensitive bag 521, the Guan Wen
Temperature-sensitive bag 522 and the outdoor fan module 523 are respectively connected with；
The circumstance temperature temperature-sensitive 521 wraps the environment temperature for detecting the outdoor unit 52；The pipe warming thermometer bulb is used to examine
Survey the Guan Wen of the outdoor unit 52；The outdoor fan module is used for the running current for detecting outdoor fan；
The control process of the controller 51 includes, and obtains the environment temperature of the outdoor unit 52, the outdoor unit 52
Gentle outdoor fan running current is managed, when the outdoor fan running current reaches pre-set current value, the Guan Wen reaches default
During defrost temperature, the air-conditioner set is controlled to start defrost, the default defrost temperature is determined by the environment temperature, when described
When outdoor fan running current reaches the time of pre-set current value more than the first preset time, the air-conditioner set beginning is controlled
Frost, obtain the air-conditioner set and start the outdoor fan running current after defrost, the room after air-conditioner set starts defrost
When outer blower fan running current is less than the pre-set current value, the air-conditioner set is controlled to stop defrost.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For air-conditioning disclosed in embodiment
Unit outdoor unit defrosts for control device and air-conditioning system, due to its with embodiment disclosed in the defrosting of air-conditioner set outdoor unit control
Method processed is corresponding, so description is fairly simple, related part is referring to method part illustration.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
- A kind of 1. air-conditioner set outdoor unit defrosting control method, it is characterised in that including：Obtain environment temperature, the gentle outdoor fan running current of the pipe of the outdoor unit of the outdoor unit；When the outdoor fan running current reaches pre-set current value, when the Guan Wen reaches default defrost temperature, described in control Air-conditioner set starts defrost；The default defrost temperature is determined by the environment temperature, corresponding to the different environment temperatures The default defrost temperature it is different；When the outdoor fan running current reaches the time of pre-set current value more than the first preset time, the air-conditioning is controlled Unit starts defrost；Obtain the air-conditioner set and start the outdoor fan running current after defrost；When the outdoor fan running current after the air-conditioner set starts defrost is less than the pre-set current value, the sky is controlled Unit is adjusted to stop defrost.
- 2. according to the method for claim 1, it is characterised in that the environment temperature for obtaining the outdoor unit, the room Before the gentle outdoor fan running current of pipe of outer machine, in addition to：Before the compressor unlatching for obtaining the air-conditioner set, the initial launch electric current of the outdoor fan；When the product of the initial launch electric current and the first preset constant exceedes the pre-set current value, the air conditioner is controlled Group starts defrost.
- 3. according to the method for claim 1, it is characterised in that the acquisition air-conditioner set starts the outdoor after defrost Before fan operation electric current, in addition to：When the environment temperature, which is consistently less than preset temperature, reaches the second preset time, the air-conditioner set beginning is controlled Frost.
- 4. according to the method for claim 3, it is characterised in that the preset temperature is subzero 15 DEG C.
- 5. according to the method for claim 1, it is characterised in that also include：When the outdoor fan running current, during more than the product of the pre-set current value and the second preset constant, described in control Air-conditioner set outdoor unit performs cleaning operation.
- The control device 6. a kind of air-conditioner set outdoor unit defrosts, it is characterised in that including：First acquisition unit, the gentle outdoor fan operation of pipe of environment temperature, the outdoor unit for obtaining the outdoor unit Electric current；First control unit, for reaching pre-set current value when the outdoor fan running current, the Guan Wen reaches defaultization During white temperature, the air-conditioner set is controlled to start defrost；The default defrost temperature determines by the environment temperature, different institutes The default defrost temperature stated corresponding to environment temperature is different；Second control unit, when the time for reaching pre-set current value when the outdoor fan running current is default more than first Between when, control the air-conditioner set to start defrost；Second acquisition unit, start the outdoor fan running current after defrost for obtaining the air-conditioner set；3rd control unit, it is less than the default electricity for the outdoor fan running current after air-conditioner set starts defrost During flow valuve, the air-conditioner set is controlled to stop defrost.
- 7. device according to claim 6, it is characterised in that also include：3rd acquiring unit, before the compressor for obtaining the air-conditioner set is opened, the initial launch electricity of the outdoor fan Stream；4th control unit, exceed the pre-set current value for the product when the initial launch electric current and the first preset constant When, control the air-conditioner set to start defrost.
- 8. device according to claim 6, it is characterised in that also include：5th control unit, for when the environment temperature is consistently less than preset temperature and reaches the second preset time, controlling institute State air-conditioner set and start defrost.
- 9. device according to claim 6, it is characterised in that also include：6th control unit, for when the outdoor fan running current, more than the pre-set current value and the second preset constant Product when, control the air-conditioner set outdoor unit to perform cleaning operation.
- A kind of 10. air-conditioning system, it is characterised in that including：Air-conditioner set and controller, the air-conditioner set include outdoor unit, and the outdoor unit includes circumstance temperature temperature-sensitive bag, pipe warming temperature Bag and outdoor fan module, the controller and the circumstance temperature temperature-sensitive bag, the pipe warming thermometer bulb and the outdoor fan module It is respectively connected with；The circumstance temperature temperature-sensitive bag is used for the environment temperature for detecting the outdoor unit；The pipe warming thermometer bulb is used to detect the outdoor The Guan Wen of machine；The outdoor fan module is used for the running current for detecting outdoor fan；The control process of the controller includes, and environment temperature, the pipe of the outdoor unit for obtaining the outdoor unit are gently outdoor Fan operation electric current, when the outdoor fan running current reaches pre-set current value, when the Guan Wen reaches default defrost temperature, The air-conditioner set is controlled to start defrost, the default defrost temperature is determined by the environment temperature, the different environment temperature The corresponding default defrost temperature of degree is different, exceedes when the time that the outdoor fan running current reaches pre-set current value During the first preset time, control the air-conditioner set to start defrost, obtain the air-conditioner set and start the outdoor fan after defrost Running current, when the outdoor fan running current after the air-conditioner set starts defrost is less than the pre-set current value, control The air-conditioner set stops defrost.
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| CN201510246347.9A CN104930674B (en) | 2015-05-14 | 2015-05-14 | Defrosting control method and device for outdoor unit of air conditioning unit and air conditioning system |
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| CN201510246347.9A CN104930674B (en) | 2015-05-14 | 2015-05-14 | Defrosting control method and device for outdoor unit of air conditioning unit and air conditioning system |
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