CN106288561A - Defrosting control method, controller and air-conditioning - Google Patents
Defrosting control method, controller and air-conditioning Download PDFInfo
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- CN106288561A CN106288561A CN201610826844.0A CN201610826844A CN106288561A CN 106288561 A CN106288561 A CN 106288561A CN 201610826844 A CN201610826844 A CN 201610826844A CN 106288561 A CN106288561 A CN 106288561A
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- control
- heat pipe
- outdoor temperature
- current outdoor
- air
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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 invention provides a kind of defrosting control method, controller and air-conditioning, described method includes: after heating mode opened by air-conditioner, obtain current outdoor temperature TW, and according to current outdoor temperature TWAccording to following control strategy carry out defrost control: if TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；If N2≤TW＜ N1, heat pipe is added in running order described in then controlling, and add heat pipe and be closed described in controlling after the continuous firing M1 time, and after the M2 time of interval, rejudge current outdoor temperature, and again carry out, according to described control strategy, the control that defrosts according to the current outdoor temperature of up-to-date acquisition.The present invention can realize on the basis of defrosting effect, effectively reduces the power consumption of air-conditioning.
Description
Technical field
The present embodiments relate to air-conditioning technical field, be specifically related to a kind of defrosting control method, controller and air-conditioning.
Background technology
When using heat pump air conditioner to heat, when outdoor environment temperature is relatively low, relative humidity is relatively big, the condenser of off-premises station
It is very easy to frosting, causes tight indoor heating effect very poor, it is therefore desirable to the defrost of intermittent, to reach to improve low temperature and high relative humidity
The lower indoor heating effect of degree.
When to condenser defrost, on the one hand, consideration based on device security, the osculum of air conditioner outdoor unit chassis is not
That can open is excessive, too much；On the other hand, under the conditions of some harsh weather such as heavy snow etc., the aqueous water produced after defrost is the most very
Fast solidification freezes, the osculum on blocking chassis slowly, thus the defrost causing chassis icing etc. finally to cause is the cleanest.
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, it is possible in reality
On the basis of existing defrosting effect, effectively reduce the power consumption of air-conditioning.
For solving above-mentioned technical problem, the present invention provides techniques below scheme:
First aspect, the invention provides a kind of defrosting control method, including:
After heating mode opened by air-conditioner, obtain current outdoor temperature TW, and according to current outdoor temperature TWAccording to
Following control strategy carry out defrost control:
If TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；
If N2≤TW＜ N1, then add heat pipe described in control in running order, and controls described after the continuous firing M1 time
Add heat pipe to be closed, and after the M2 time of interval, rejudge current outdoor temperature, and working as according to up-to-date acquisition
Front outdoor temperature carries out, according to described control strategy, the control that defrosts again.
Further, described control strategy also includes:
If N3≤TW＜ N2, then add heat pipe described in control in running order, and controls described after the continuous firing M3 time
Add heat pipe to be closed, and after the M4 time of interval, rejudge current outdoor temperature, and working as according to up-to-date acquisition
Front outdoor temperature carries out, according to described control strategy, the control that defrosts again；Wherein M3 ＞ M1, M4 ＜ M2.
Further, described control strategy also includes:
If TW＜ N3, then add heat pipe described in control in running order, and control described heating after the continuous firing M5 time
Pipe is closed, and rejudges current outdoor temperature after the M6 time of interval, and works as cup according to up-to-date acquisition
Outer temperature carries out, according to described control strategy, the control that defrosts again；Wherein M5 ＞ M3, M6 ＜ M4.
Further, described N1 is 2 DEG C, and described N2 is-7 DEG C.
Further, described N3 is-25 DEG C.
Further, the span of described M1 is 30～60min, and the span of described M2 is 15～20min.
Further, the span of described M3 is 60～90min, and the span of described M4 is 10～15min.
Further, the span of described M5 is 90～120min, and the span of described M6 is 5～10min.
Second aspect, present invention also offers a kind of defrosting controller, including:
Acquisition module, after opening heating mode at air-conditioner, obtains current outdoor temperature TW；
Control module, for according to current outdoor temperature TWAccording to following control strategy carry out defrost control:
If TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；
If N2≤TW＜ N1, then add heat pipe described in control in running order, and controls described after the continuous firing M1 time
Add heat pipe to be closed, and after the M2 time of interval according to the current outdoor temperature of the up-to-date acquisition of described acquisition module again
Defrost control, wherein M2≤M1 is carried out according to described control strategy.
The third aspect, present invention also offers a kind of air-conditioning, including the controller that defrosts as described above.
As shown from the above technical solution, defrosting control method of the present invention, after heating mode opened by air-conditioning, obtain
Current outdoor temperature TW, and according to current outdoor temperature TWThe control that defrosts is carried out according to corresponding control strategy.Specifically,
If TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；If N2≤TW＜ N1, then control described
Add heat pipe in running order, and add heat pipe and be closed described in controlling after the continuous firing M1 time, and when being spaced M2
Rejudge current outdoor temperature after between, and again enter according to described control strategy according to the current outdoor temperature of up-to-date acquisition
Row defrosting controls.Visible, that the embodiment of the present invention provides defrosting control method, according to outdoor temperature, periodically open or
Stop electric heating tube work, prevent chassis from freezing.The control method that the embodiment of the present invention provides, it is possible to before effectively defrosting
Put, reduce the power consumption of air-conditioning further.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
Fig. 1 is the flow chart of the defrosting control method that first embodiment of the invention provides；
Fig. 2 is the flow chart of the defrosting control method that second embodiment of the invention provides；
Fig. 3 is the structural representation of the defrosting controller that third embodiment of the invention provides.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is carried out clear, complete description, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the 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 open or stop electric heating tube work, preventing chassis from freezing.Below will be by first to
Four embodiments are explained in detail explanation to the present invention.
Fig. 1 shows the flow chart of the defrosting control method that first embodiment of the invention provides, and sees Fig. 1, the present invention
The defrosting control method of first embodiment offer comprises the steps:
Step 101: after heating mode opened by air-conditioner, obtain current outdoor temperature TW。
Step 102: according to current outdoor temperature TWAccording to following control strategy carry out defrost control:
If TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；
If N2≤TW＜ N1, then add heat pipe described in control in running order, and controls described after the continuous firing M1 time
Add heat pipe to be closed, and after the M2 time of interval, rejudge current outdoor temperature, and working as according to up-to-date acquisition
Front outdoor temperature carries out, according to described control strategy, the control that defrosts again.
Here, after the M2 time of interval, rejudge current outdoor temperature refer to, reacquire after the M2 time of interval
Current outdoor temperature TW, and according to the current outdoor temperature T of up-to-date acquisitionWAgain defrosting control is carried out according to described control strategy
System.
In order to ensure defrosting effect as far as possible, improve the serviceability of air-conditioner, it is preferable that in the present embodiment, M1 >=M2.
It is preferred here that described N1 value is 2 DEG C, described N2 value is-7 DEG C, the span of described M1 be 30～
60min, such as 30min, the span of described M2 is 15～20min, such as 15min.So i other words, in current outdoor temperature
During more than 2 DEG C, the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；In current outdoor temperature more than-7 DEG C
And during less than 2 DEG C, add heat pipe described in control in running order, and add heat pipe described in controlling after continuous firing 30min and be in pass
Closed state, and rejudge current outdoor temperature after the 15min of interval, and according to the current outdoor temperature of up-to-date acquisition again
The control that defrosts is carried out according to described control strategy.Such as assume that the current outdoor temperature of up-to-date acquisition is-6 DEG C, then according to condition
N2≤TWAdd heat pipe described in should controlling knowable to ＜ N1 in running order, and add at heat pipe described in control after continuous firing 30min
In closed mode, and rejudge current outdoor temperature after the 15min of interval, and according to the current outdoor temperature of up-to-date acquisition
Again carry out, according to described control strategy, the control that defrosts.If the current outdoor temperature of up-to-date acquisition is 2 DEG C, then according to condition TW≥
N1 understands the heat pipe that adds that should control on chassis of outdoor unit of air conditioner and is closed, to save energy consumption.
As seen from the above description, the defrosting control method that the embodiment of the present invention provides, after heating mode opened by air-conditioning, obtains
Take current outdoor temperature TW, and according to current outdoor temperature TWThe control that defrosts is carried out, specifically according to corresponding control strategy
Ground, if TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；If N2≤TW＜ N1, then control institute
State that to add heat pipe in running order, and add heat pipe described in controlling after the continuous firing M1 time and be closed, and at interval M2
Current outdoor temperature is rejudged after time, and according to the current outdoor temperature of up-to-date acquisition again according to described control strategy
Carry out the control that defrosts.Visible, that the embodiment of the present invention provides defrosting control method, according to outdoor temperature, periodically open or
Person stops electric heating tube work, prevents chassis from freezing.The control method that the embodiment of the present invention provides, it is possible in effectively defrosting
Under premise, reduce the power consumption of air-conditioning further.
It is understood that in order to save electric energy, under air-conditioner shutdown or standby and refrigeration work pattern, electrical heating
Pipe remains off, to save electric energy.
In second embodiment of the invention, the defrosting control method providing above-mentioned first embodiment is supplemented
Perfect.
In the present embodiment, in order to meet the defrosting function of air-conditioner under various use environment, and reduce energy consumption as far as possible,
On the basis of the control mode that above-described embodiment provides, see Fig. 2, it is preferable that described control strategy also includes:
If N3≤TW＜ N2, then add heat pipe described in control in running order, and controls described after the continuous firing M3 time
Add heat pipe to be closed, and after the M4 time of interval, rejudge current outdoor temperature, and working as according to up-to-date acquisition
Front outdoor temperature carries out defrost control, wherein M3 ＞ M1, M4 ＜ M2 according to described control strategy again.
In the present embodiment, the span of M3 is 60～90min, and the span of M4 is 10～15min, such as M3 value
Being that 12min, N2 value is-7 DEG C for 80min, the such as value of M4, N3 value is-25 DEG C.The most current outdoor temperature is-10
DEG C, i.e. current outdoor temperature is positioned at [-25 DEG C ,-7 DEG C], now adds heat pipe described in control in running order, and continuous firing
Add heat pipe described in controlling after the 80min time to be closed, and rejudge current outdoor temp after the 12min time of interval
Degree, and again carry out, according to described control strategy, the control that defrosts according to the current outdoor temperature of up-to-date acquisition.Such as assume up-to-date
The current outdoor temperature obtained is-8 DEG C, then according to condition N3≤TWAdd heat pipe described in should controlling knowable to ＜ N2 and be in work shape
Add heat pipe described in controlling after state, and continuous firing 80min time to be closed, and again sentence after the 12min time of interval
Disconnected current outdoor temperature, and again carry out defrosting control according to described control strategy according to the current outdoor temperature of up-to-date acquisition
System.If the current outdoor temperature of up-to-date acquisition is-5 DEG C, then according to condition N2≤TWAdd at heat pipe described in should controlling knowable to ＜ N1
In duty, and add heat pipe and be closed described in controlling after continuous firing 30min, and again sentence after the 15min of interval
Disconnected current outdoor temperature, and again carry out defrosting control according to described control strategy according to the current outdoor temperature of up-to-date acquisition
System.The current outdoor temperature assuming up-to-date acquisition is 1 DEG C, then according to condition TW>=N1 understands should control chassis of outdoor unit of air conditioner
On the heat pipe that adds be closed, to save energy consumption.Visible, in the present embodiment, give under various external environment condition
Defrosting control mode, to ensure that air-conditioning all can normally work in various external environment conditions, and reduces energy consumption as far as possible.
For meeting the defrosting function of air-conditioner under adverse circumstances further, and reduce energy consumption, it is preferable that described as far as possible
Control strategy also includes:
If TW＜ N3, then add heat pipe described in control in running order, and control described heating after the continuous firing M5 time
Pipe is closed, and rejudges current outdoor temperature after the M6 time of interval, and works as cup according to up-to-date acquisition
Outer temperature carries out, according to described control strategy, the control that defrosts again；Wherein M5 ＞ M3, M6 ＜ M4.
Preferably, the span of described M5 is 90～120min, such as 100min, the span of described M6 be 5～
10min, such as 6min.
Such as, current outdoor temperature is-30 DEG C, i.e. current outdoor temperature meets condition TW＜ N3, now should control institute
State that to add heat pipe in running order, and add heat pipe described in controlling after the continuous firing 100min time and be closed, and
Current outdoor temperature is rejudged after the 10min time, and according to the current outdoor temperature of up-to-date acquisition again according to described
Control strategy carries out the control that defrosts, and concrete control process is similar with previous example, is the most no longer discussed in detail.
Knowable to the description of above-described embodiment, the defrosting control method that the embodiment of the present invention provides, according to outdoor environment temperature
The situation of change of degree, dynamically regulation adds working time and the start and stop cycle of heat pipe, both can guarantee that the water on bottom plate of outdoor unit was timely
Discharge, it is to avoid the defrost caused because of osculum blocking is not clean, ultimately results in the problem occurring that heating effect is poor, can simultaneously yet
The amount of saving energy.
Third embodiment of the invention provides a kind of defrosting controller, sees Fig. 3, and this defrosting controller includes: obtain
Module 31 and control module 32, wherein:
Acquisition module 31, after opening heating mode at air-conditioner, obtains current outdoor temperature TW；
Control module 32, for according to current outdoor temperature TWAccording to following control strategy carry out defrost control:
If TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；
If N2≤TW＜ N1, then add heat pipe described in control in running order, and controls described after the continuous firing M1 time
Add heat pipe to be closed, and after the M2 time of interval according to the current outdoor temperature of the up-to-date acquisition of described acquisition module again
The control that defrosts is carried out according to described control strategy.
Defrosting controller described in the present embodiment, may be used for performing the defrosting control method described in above-described embodiment, its
Principle is similar with technique effect, the most no longer describes in detail.
Based on same inventive concept, four embodiment of the invention provides a kind of air-conditioning, and this air-conditioning includes as above
Defrosting controller described in embodiment.This air-conditioning is owing to including above-mentioned defrosting controller, thus can solve same technology
Problem, and obtain identical technique effect.
In describing the invention, it should be noted that term " on ", the orientation of the instruction such as D score or position relationship be base
In orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or hint
The device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of invention.Unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, example
As, can be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be to be electrically connected
Connect；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For this
For the those of ordinary skill in field, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Also, it should be noted in this article, the relational terms of such as first and second or the like is used merely to one
Entity or operation separate with another entity or operating space, and not necessarily require or imply between these entities or operation
There is relation or the order of any this reality.And, term " includes ", " comprising " or its any other variant are intended to contain
Comprising of lid nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Above example is merely to illustrate technical scheme, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these are revised or replace
Change, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a defrosting control method, it is characterised in that including:
After heating mode opened by air-conditioner, obtain current outdoor temperature TW, and according to current outdoor temperature TWAccording to following
Control strategy carry out defrost control:
If TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；
If N2≤TW＜ N1, then add heat pipe described in control in running order, and adds heat pipe described in control after the continuous firing M1 time
It is closed, and rejudges current outdoor temperature after the M2 time of interval, and according to the current outdoor of up-to-date acquisition
Temperature carries out, according to described control strategy, the control that defrosts again.
Method the most according to claim 1, it is characterised in that described control strategy also includes:
If N3≤TW＜ N2, then add heat pipe described in control in running order, and adds heat pipe described in control after the continuous firing M3 time
It is closed, and rejudges current outdoor temperature after the M4 time of interval, and according to the current outdoor of up-to-date acquisition
Temperature carries out, according to described control strategy, the control that defrosts again；Wherein M3 ＞ M1, M4 ＜ M2.
Method the most according to claim 2, it is characterised in that described control strategy also includes:
If TW＜ N3, then control described in add heat pipe in running order, and add heat pipe described in controlling after the continuous firing M5 time and be in
Closed mode, and rejudge current outdoor temperature after the M6 time of interval, and according to the current outdoor temperature of up-to-date acquisition
Again carry out, according to described control strategy, the control that defrosts；Wherein M5 ＞ M3, M6 ＜ M4.
Method the most according to claim 1, it is characterised in that described N1 is 2 DEG C, and described N2 is-7 DEG C.
5. according to the method according to any one of claim 2～4, it is characterised in that described N3 is-25 DEG C.
Method the most according to claim 1, it is characterised in that the span of described M1 is 30～60min, described M2's
Span is 15～20min.
Method the most according to claim 2, it is characterised in that the span of described M3 is 60～90min, described M4's
Span is 10～15min.
Method the most according to claim 3, it is characterised in that the span of described M5 is 90～120min, described M6
Span be 5～10min.
9. a defrosting controller, it is characterised in that including:
Acquisition module, after opening heating mode at air-conditioner, obtains current outdoor temperature TW；
Control module, for according to current outdoor temperature TWAccording to following control strategy carry out defrost control:
If TW>=N1, then the heat pipe that adds controlled on chassis of outdoor unit of air conditioner is closed；
If N2≤TW＜ N1, then add heat pipe described in control in running order, and adds heat pipe described in control after the continuous firing M1 time
Be closed, and after the M2 time of interval according to the current outdoor temperature of the up-to-date acquisition of described acquisition module again according to institute
State control strategy and carry out the control that defrosts.
10. an air-conditioning, it is characterised in that include defrosting as claimed in claim 9 controller.
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| CN201610826844.0A CN106288561B (en) | 2016-09-14 | 2016-09-14 | Defrosting control method, controller and air-conditioning |
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| CN201610826844.0A CN106288561B (en) | 2016-09-14 | 2016-09-14 | Defrosting control method, controller and air-conditioning |
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| 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 |
| 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 |
| CN109682017A (en) * | 2018-12-27 | 2019-04-26 | 广东美的暖通设备有限公司 | The control method and its device of air conditioner heating system |
| 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 |
| CN110701730A (en) * | 2019-10-29 | 2020-01-17 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device and air conditioner |
| CN112212466A (en) * | 2020-10-21 | 2021-01-12 | 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 |
| US11788758B2 (en) | 2018-12-27 | 2023-10-17 | Hefei Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioner, and control method and device for heating system thereof |
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