CN106288561B - Defrosting control method, controller and air-conditioning - Google Patents
Defrosting control method, controller and air-conditioning Download PDFInfo
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- CN106288561B CN106288561B CN201610826844.0A CN201610826844A CN106288561B CN 106288561 B CN106288561 B CN 106288561B CN 201610826844 A CN201610826844 A CN 201610826844A CN 106288561 B CN106288561 B CN 106288561B
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- heating tube
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- outdoor temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of defrosting control method, controller and air-conditionings, which comprises after air conditioner opens heating mode, obtains current outdoor temperature TW, and according to current outdoor temperature TWDefrosting control is carried out according to following control strategy: if TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;If N2≤TW< N1, it is in running order then to control the heating tube, and it continues working and controls the heating tube after the M1 time and be in close state, and current outdoor temperature is rejudged after being spaced the M2 time, and defrosting control is carried out according to the control strategy again according to the current outdoor temperature of newest acquisition.The power consumption of air-conditioning can be effectively reduced on the basis for realizing defrosting effect in the present invention.
Description
Technical field
The present embodiments relate to air-conditioning technical fields, and in particular to a kind of defrosting control method, controller and air-conditioning.
Background technique
When being heated using heat pump air conditioner, when outdoor environment temperature is lower, relative humidity is larger, the condenser of outdoor unit
It is very easy to frosting, causes tight indoor heating effect very poor, it is therefore desirable to the defrost of intermittent, to reach improvement low temperature and high relative humidity
Indoor heating effect under degree.
When to condenser defrost, on the one hand, based on the considerations of device security, the drainage hole of air conditioner outdoor unit chassis is not
What can be opened is excessive, excessive;On the other hand, under the conditions ofs some harsh weather such as heavy snow etc., the liquid water that generates after defrost is again very
Fast solidification freezes, the drainage hole on blocking chassis slowly, unclean so as to cause the final caused defrost such as chassis icing.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of defrosting control method, controller and air-conditioning, can be in reality
On the basis of existing defrosting effect, the power consumption of air-conditioning is effectively reduced.
In order to solve the above technical problems, the present invention the following technical schemes are provided:
In a first aspect, the present invention provides a kind of defrosting control methods, comprising:
After air conditioner opens heating mode, current outdoor temperature T is obtainedW, and according to current outdoor temperature TWAccording to
Following control strategy carries out defrosting control:
If TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;
If N2≤TWIt is in running order then to control the heating tube by < N1, and continues working after the M1 time described in control
Heating tube is in close state, and rejudges current outdoor temperature, and working as according to newest acquisition after being spaced the M2 time
Preceding outdoor temperature carries out defrosting control according to the control strategy again.
Further, the control strategy further include:
If N3≤TWIt is in running order then to control the heating tube by < N2, and continues working after the M3 time described in control
Heating tube is in close state, and rejudges current outdoor temperature, and working as according to newest acquisition after being spaced the M4 time
Preceding outdoor temperature carries out defrosting control according to the control strategy again;Wherein M3 > M1, M4 < M2.
Further, the control strategy further include:
If TWIt is in running order then to control the heating tube by < N3, and controls the heating after continuing working the M5 time
Pipe is in close state, and rejudges current outdoor temperature after being spaced the M6 time, and work as cup according to newest acquisition
Outer temperature carries out defrosting control according to the control strategy again;Wherein M5 > M3, M6 < M4.
Further, the N1 is 2 DEG C, and the N2 is -7 DEG C.
Further, the N3 is -25 DEG C.
Further, the value range of the M1 is 30~60min, and the value range of the M2 is 15~20min.
Further, the value range of the M3 is 60~90min, and the value range of the M4 is 10~15min.
Further, the value range of the M5 is 90~120min, and the value range of the M6 is 5~10min.
Second aspect, the present invention also provides a kind of defrosting controllers, comprising:
Module is obtained, for obtaining current outdoor temperature T after air conditioner opens heating modeW;
Control module, for according to current outdoor temperature TWDefrosting control is carried out according to following control strategy:
If TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;
If N2≤TWIt is in running order then to control the heating tube by < N1, and continues working after the M1 time described in control
Heating tube is in close state, and after being spaced the M2 time according to it is described obtain the newest acquisition of module current outdoor temperature again
Defrosting control is carried out according to the control strategy, wherein M2≤M1.
The third aspect, the present invention also provides a kind of air-conditionings, including the controller that defrosts as described above.
As shown from the above technical solution, defrosting control method of the present invention obtains after air-conditioning opens heating mode
Current outdoor temperature TW, and according to current outdoor temperature TWDefrosting control is carried out according to corresponding control strategy.Specifically,
If TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;If N2≤TW< N1, then described in control
Heating tube is in running order, and continues working and control the heating tube after the M1 time and be in close state, and when being spaced M2
Between after rejudge current outdoor temperature, and according to the current outdoor temperature of newest acquisition again according to the control strategy into
Row defrosting control.As it can be seen that defrosting control method provided in an embodiment of the present invention, according to outdoor temperature, periodically open or
Stop electric heating tube work, to prevent chassis from freezing.Control method provided in an embodiment of the present invention, can be before effectively defrosting
It puts, further decreases the power consumption of air-conditioning.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the flow chart for the defrosting control method that first embodiment of the invention provides;
Fig. 2 is the flow chart for the defrosting control method that second embodiment of the invention provides;
Fig. 3 is the structural schematic diagram for the defrosting controller that third embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
For the problems of the prior art, the present invention provides a kind of defrosting control method, controller and air-conditioning, root of the present invention
According to outdoor temperature, periodically opens or stop electric heating tube work, to prevent chassis from freezing.First to will be passed through below
Explanation is explained in detail to the present invention in four embodiments.
Fig. 1 shows the flow chart of the defrosting control method of first embodiment of the invention offer, referring to Fig. 1, the present invention
The defrosting control method that one embodiment provides includes the following steps:
Step 101: after air conditioner opens heating mode, obtaining current outdoor temperature TW。
Step 102: according to current outdoor temperature TWDefrosting control is carried out according to following control strategy:
If TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;
If N2≤TWIt is in running order then to control the heating tube by < N1, and continues working after the M1 time described in control
Heating tube is in close state, and rejudges current outdoor temperature, and working as according to newest acquisition after being spaced the M2 time
Preceding outdoor temperature carries out defrosting control according to the control strategy again.
Here, current outdoor temperature is rejudged after being spaced the M2 time to refer to, reacquire after being spaced the M2 time
Current outdoor temperature TW, and according to the current outdoor temperature T of newest acquisitionWAgain defrosting control is carried out according to the control strategy
System.
In order to guarantee defrosting effect as far as possible, the service performance of air conditioner is improved, it is preferable that in the present embodiment, M1 >=M2.
It is preferred here that the N1 value is 2 DEG C, the N2 value is -7 DEG C, the value range of the M1 is 30~
60min, such as 30min, the value range of the M2 are 15~20min, such as 15min.So i other words, in current outdoor temperature
When greater than 2 DEG C, the heating tube controlled on chassis of outdoor unit of air conditioner is in close state;It is greater than -7 DEG C in current outdoor temperature
And when less than 2 DEG C, it is in running order to control the heating tube, and controls the heating tube in pass after continuing working 30min
Closed state, and current outdoor temperature is rejudged after being spaced 15min, and again according to the current outdoor temperature of newest acquisition
Defrosting control is carried out according to the control strategy.Such as assume that the current outdoor temperature of newest acquisition is -6 DEG C, then according to condition
N2≤TWIt is in running order that the heating tube should be controlled known to < N1, and is controlled at the heating tube after continuing working 30min
In closed state, and current outdoor temperature is rejudged after being spaced 15min, and according to the current outdoor temperature of newest acquisition
Again defrosting control is carried out according to the control strategy.If the current outdoor temperature of newest acquisition is 2 DEG C, according to condition TW≥
The heating tube that should be controlled on chassis of outdoor unit of air conditioner known to N1 is in close state, to save energy consumption.
As seen from the above description, defrosting control method provided in an embodiment of the present invention obtains after air-conditioning opens heating mode
Take current outdoor temperature TW, and according to current outdoor temperature TWDefrosting control is carried out according to corresponding control strategy, specifically
Ground, if TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;If N2≤TW< N1 then controls institute
It is in running order to state heating tube, and continues working and controls the heating tube after the M1 time and be in close state, and in interval M2
Current outdoor temperature is rejudged after time, and according to the current outdoor temperature of newest acquisition again according to the control strategy
Carry out defrosting control.As it can be seen that defrosting control method provided in an embodiment of the present invention, according to outdoor temperature, periodically open or
Person stops electric heating tube work, to prevent chassis from freezing.Control method provided in an embodiment of the present invention can effectively defrost
Under the premise of, further decrease the power consumption of air-conditioning.
It is understood that in order to save electric energy, under air conditioner shutdown or standby and refrigeration work mode, electric heating
Pipe remains off, to save electric energy.
In second embodiment of the invention, the defrosting control method provided above-mentioned one embodiment is supplemented
It is perfect.
In the present embodiment, in order to meet the defrosting function of air conditioner under various use environments, and energy consumption is reduced as far as possible,
On the basis of control mode provided by the above embodiment, referring to fig. 2, it is preferable that the control strategy further include:
If N3≤TWIt is in running order then to control the heating tube by < N2, and continues working after the M3 time described in control
Heating tube is in close state, and rejudges current outdoor temperature, and working as according to newest acquisition after being spaced the M4 time
Preceding outdoor temperature carries out defrosting control according to the control strategy again, wherein M3 > M1, M4 < M2.
In the present embodiment, the value range of M3 is 60~90min, and the value range of M4 is 10~15min, such as M3 value
It is 12min for 80min, such as value of M4, N2 value is -7 DEG C, and N3 value is -25 DEG C.Such as current outdoor temperature is -10
DEG C, i.e., current outdoor temperature is located at [- 25 DEG C, -7 DEG C], it is in running order to control the heating tube at this time, and continue working
The heating tube is controlled after the 80min time to be in close state, and rejudges current outdoor temp after being spaced the 12min time
Degree, and defrosting control is carried out according to the control strategy again according to the current outdoor temperature of newest acquisition.Such as assume newest
The current outdoor temperature of acquisition is -8 DEG C, then according to condition N3≤TWThe heating tube, which should be controlled, known to < N2 is in work shape
State, and continue working and control the heating tube after the 80min time and be in close state, and sentence again after being spaced the 12min time
Break current outdoor temperature, and defrosting control is carried out according to the control strategy again according to the current outdoor temperature of newest acquisition
System.If the current outdoor temperature of newest acquisition is -5 DEG C, according to condition N2≤TWIt should be controlled at the heating tube known to < N1
In working condition, and continues working and control the heating tube after 30min and be in close state, and sentence again after being spaced 15min
Break current outdoor temperature, and defrosting control is carried out according to the control strategy again according to the current outdoor temperature of newest acquisition
System.Assuming that the current outdoor temperature of newest acquisition is 2 DEG C, then according to condition TWChassis of outdoor unit of air conditioner should be controlled known to >=N1
On heating tube be in close state, to save energy consumption.As it can be seen that in the present embodiment, having given under various external environment conditions
Defrost control mode, to guarantee that air-conditioning can be worked normally in various external environments, and reduces energy consumption as far as possible.
For the defrosting function of air conditioner under further satisfaction adverse circumstances, and reduction energy consumption as far as possible, it is preferable that described
Control strategy further include:
If TWIt is in running order then to control the heating tube by < N3, and controls the heating after continuing working the M5 time
Pipe is in close state, and rejudges current outdoor temperature after being spaced the M6 time, and work as cup according to newest acquisition
Outer temperature carries out defrosting control according to the control strategy again;Wherein M5 > M3, M6 < M4.
Preferably, the value range of the M5 be 90~120min, such as 100min, the M6 value range be 5~
10min, such as 6min.
For example, current outdoor temperature is -30 DEG C, i.e. current outdoor temperature meets condition TW< N3 should control institute at this time
It is in running order to state heating tube, and continues working and controls the heating tube after the 100min time and be in close state, and
Current outdoor temperature is rejudged after the 10min time, and according to the current outdoor temperature of newest acquisition again according to described
Control strategy carries out defrosting control, and specific control process is similar with previous example, is no longer discussed in detail herein.
From the description of above-described embodiment it is found that defrosting control method provided in an embodiment of the present invention, according to outdoor environment temperature
The situation of change of degree, the working time of dynamic regulation heating tube and the start-up period both can guarantee that the water on bottom plate of outdoor unit was timely
Discharge, defrost caused by avoiding because of draining hole plug is not clean, eventually leads to and the poor problem of heating effect occurs, while also can
The amount of saving energy.
Third embodiment of the invention provides a kind of defrosting controller, and referring to Fig. 3, which includes: to obtain
Module 31 and control module 32, in which:
Module 31 is obtained, for obtaining current outdoor temperature T after air conditioner opens heating modeW;
Control module 32, for according to current outdoor temperature TWDefrosting control is carried out according to following control strategy:
If TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;
If N2≤TWIt is in running order then to control the heating tube by < N1, and continues working after the M1 time described in control
Heating tube is in close state, and after being spaced the M2 time according to it is described obtain the newest acquisition of module current outdoor temperature again
Defrosting control is carried out according to the control strategy.
Defrosting controller described in the present embodiment, can be used for executing defrosting control method described in above-described embodiment,
Principle is similar with technical effect, and and will not be described here in detail.
Based on same inventive concept, four embodiment of the invention provides a kind of air-conditioning, which includes as above
Defrosting controller described in embodiment.The air-conditioning can solve same technology due to including above-mentioned defrosting controller
Problem, and obtain identical technical effect.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, example
Such as, it may be fixed connection or may be dismantle connection, or integral connection;It can be mechanical connection, be also possible to be electrically connected
It connects;It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations;Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features;And these are modified or replace
It changes, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of defrosting control method characterized by comprising
After air conditioner opens heating mode, current outdoor temperature T is obtainedW, and according to current outdoor temperature TWAccording to following
Control strategy carry out defrosting control:
If TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;
If N2≤TWIt is in running order then to control the heating tube by < N1, and controls the heating tube after continuing working the M1 time
It is in close state, and rejudges current outdoor temperature after being spaced the M2 time, and according to the current outdoor of newest acquisition
Temperature carries out defrosting control according to the control strategy again;
Wherein, the control strategy further include:
If N3≤TWIt is in running order then to control the heating tube by < N2, and controls the heating tube after continuing working the M3 time
It is in close state, and rejudges current outdoor temperature after being spaced the M4 time, and according to the current outdoor of newest acquisition
Temperature carries out defrosting control according to the control strategy again;Wherein M3 > M1, M4 < M2.
2. the method according to claim 1, wherein the control strategy further include:
If TWIt is in running order then to control the heating tube by < N3, and continues working and control the heating tube after the M5 time and be in
Closed state, and current outdoor temperature is rejudged after being spaced the M6 time, and according to the current outdoor temperature of newest acquisition
Again defrosting control is carried out according to the control strategy;Wherein M5 > M3, M6 < M4.
3. the N2 is -7 DEG C the method according to claim 1, wherein the N1 is 2 DEG C.
4. method described in any one of claim 1 to 3, which is characterized in that the N3 is -25 DEG C.
5. the method according to claim 1, wherein the value range of the M1 be 30~60min, the M2's
Value range is 15~20min.
6. the method according to claim 1, wherein the value range of the M3 be 60~90min, the M4's
Value range is 10~15min.
7. according to the method described in claim 2, it is characterized in that, the value range of the M5 is 90~120min, the M6
Value range be 5~10min.
8. a kind of defrosting controller characterized by comprising
Module is obtained, for obtaining current outdoor temperature T after air conditioner opens heating modeW;
Control module, for according to current outdoor temperature TWDefrosting control is carried out according to following control strategy:
If TW>=N1, the then heating tube controlled on chassis of outdoor unit of air conditioner are in close state;
If N2≤TWIt is in running order then to control the heating tube by < N1, and controls the heating tube after continuing working the M1 time
Be in close state, and after being spaced the M2 time according to it is described obtain the newest acquisition of module current outdoor temperature again according to institute
It states control strategy and carries out defrosting control;
Wherein, the control strategy further include:
If N3≤TWIt is in running order then to control the heating tube by < N2, and controls the heating tube after continuing working the M3 time
It is in close state, and rejudges current outdoor temperature after being spaced the M4 time, and according to the current outdoor of newest acquisition
Temperature carries out defrosting control according to the control strategy again;Wherein M3 > M1, M4 < M2.
9. a kind of air-conditioning, which is characterized in that including the controller that defrosts as claimed in claim 8.
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CN108105911A (en) * | 2017-12-07 | 2018-06-01 | 广东美的暖通设备有限公司 | Air conditioner and its control method |
CN108006926A (en) * | 2017-12-07 | 2018-05-08 | 广东美的暖通设备有限公司 | Air conditioner and its control method |
CN109682017B (en) * | 2018-12-27 | 2021-03-23 | 广东美的暖通设备有限公司 | Control method and device for heating system of air conditioner |
EP3885662A4 (en) | 2018-12-27 | 2022-01-26 | Hefei Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioner, and control method and device for heating system thereof |
CN110410968A (en) * | 2019-07-04 | 2019-11-05 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
CN110701730B (en) * | 2019-10-29 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device and air conditioner |
CN112212466B (en) * | 2020-10-21 | 2022-03-08 | 广东积微科技有限公司 | Control method and control device for chassis heater of air conditioner outdoor unit and air conditioner |
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CN2612893Y (en) * | 2003-04-24 | 2004-04-21 | 珠海格力电器股份有限公司 | Air-conditioner with subsidiary defrosting device |
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