CN108758973A - Air conditioner defrosting control method - Google Patents
Air conditioner defrosting control method Download PDFInfo
- Publication number
- CN108758973A CN108758973A CN201810509705.4A CN201810509705A CN108758973A CN 108758973 A CN108758973 A CN 108758973A CN 201810509705 A CN201810509705 A CN 201810509705A CN 108758973 A CN108758973 A CN 108758973A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- control method
- defrosting control
- defrosting
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010257 thawing Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 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
- 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
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to air conditioner technical fields, and in particular to a kind of air conditioner defrosting control method.Room temperature fluctuation is excessive when defrosting in order to prevent, and the method for the present invention includes the following steps：During air conditioner heat-production is run, judge whether air conditioner meets defrosting condition；During air conditioner heat-production is run, judge whether air conditioner meets defrosting condition；If it is, before air conditioner enters defrosting mode, outdoor coil pipe used temperature t is obtained, and outdoor coil temperature t is obtained again after being spaced preset time0；Compare t and t0, and selectively control according to comparison result running frequency, throttle valve opening or the indoor unit of compressor and/or the rotation speed of fan of outdoor unit.The present invention is before air conditioner enters defrosting mode, and by storing part energy, during air conditioner defrosts, this portion of energy is supplemented to interior, and room temperature fluctuation is excessive when to effectively prevent defrosting.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of air conditioner defrosting control method.
Background technology
Air conditioner as a kind of equipment that can adjust indoor environment temperature, its working principle is that：It is being followed by refrigerant
Between endless tube road by the state of high voltage/low voltage/gaseous state/liquid convert make indoor environment temperature reduce or increase, i.e., from
From the perspective of indoor unit, air conditioner is in refrigeration or heating condition.When air conditioner heat-production is run, in certain humidity item
If outdoor coil temperature is too low to lead to frosting situation under part, and outdoor coil pipe used frosting can cause the heat exchange of outdoor heat exchanger to be imitated
Rate reduces, and influences the heating effect of air conditioner, reduces the comfort of indoor environment, influence user experience.Therefore, at air conditioner
In the case of heating condition, the outdoor coil pipe used progress to air conditioner is needed effectively to defrost in time.
Whether existing domestic air conditioner can judge air conditioner in knot in several ways in running heating operations
White state, such as go to judge whether to enter defrosting using run time+outdoor coil temperature.When judging that air conditioner is in frosting shape
After state, then air conditioner is set to enter defrosting mode, however this mode easily causes indoor temperature larger fluctuation.
Therefore, the present invention proposes a kind of new defrosting control method to reduce the shadow during defrosting to indoor temperature
It rings.
Invention content
In order to solve the above problem in the prior art, room temperature fluctuation is excessive when defrosting in order to prevent, and the present invention carries
A kind of air conditioner defrosting control method is gone out, the defrosting control method includes the following steps：In the mistake of air conditioner heat-production operation
Cheng Zhong, judges whether air conditioner meets defrosting condition；If it is, before air conditioner enters defrosting mode, outdoor disk is obtained
The temperature t of pipe, and outdoor coil temperature t0 is obtained again after being spaced preset time；Compare t and t0, and is selected according to comparison result
Control to selecting property running frequency, throttle valve opening or the indoor unit of compressor and/or the rotation speed of fan of outdoor unit.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " compares t and t0, and selected according to comparison result
Control to selecting property running frequency, throttle valve opening or the indoor unit of compressor and/or the rotation speed of fan of outdoor unit " the step of wrap
It includes：If t-t0 >=setting value promotes the running frequency of compressor；If t-t0 < setting values, maintain compressor
Running frequency is constant, and reduces throttle valve opening, and/or reduces the rotation speed of fan of indoor unit and/or outdoor unit.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if t-t0 >=setting value, by the pressure
The running frequency of contracting machine promotes 10-15hz.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if t-t0 < setting values, by the section
It flows valve opening and reduces 20-40 steps.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if t-t0 < setting values, make the room
The rotation speed of fan of interior machine and/or outdoor unit reduces 40-60rpm.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if t-t0 < setting values, make the room
The rotation speed of fan of interior machine and/or outdoor unit reduces 50rpm.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, arbitrary value of the setting value between 0-2.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the setting value is 1.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the preset time is between 25-35 seconds
Random time.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the preset time is 30 seconds.
Technical solution through the invention, before air conditioner enters defrosting mode, according to t and t0Comparison result selection
The rotation speed of fan of running frequency, throttle valve opening or the indoor unit and/or outdoor unit that control to property compressor stores one
Divide energy, during air conditioner defrosts, this portion of energy is supplemented to interior, room temperature wave when to effectively prevent defrosting
It is dynamic excessive.It will be appreciated to those of skill in the art that by t and t0Comparison result as reference, can accurately select phase
The energy storage mode answered, the fluctuation of room temperature when to farthest reduce defrosting.
Description of the drawings
Fig. 1 is the main flow schematic diagram of the air conditioner defrosting control method of the present invention.
Specific implementation mode
To keep the embodiment of the present invention, technical solution and advantage more obvious, below in conjunction with attached drawing to the skill of the present invention
Art scheme is clearly and completely described, it is clear that and the embodiment described is a part of the embodiment of the present invention, rather than all
Embodiment.It will be apparent to a skilled person that these embodiments are used only for explaining the technical principle of the present invention, and
It is not intended to be limiting protection scope of the present invention.
As shown in Figure 1, the defrosting control method of the present invention includes the following steps：S110, the mistake run in air conditioner heat-production
Cheng Zhong, judges whether air conditioner meets defrosting condition；S120, if it is, before air conditioner enters defrosting mode, obtain room
The temperature t of outer coil pipe, and outdoor coil temperature t is obtained again after being spaced preset time0；S130, compare t and t0, and according to than
Running frequency, throttle valve opening or the indoor unit of compressor and/or the rotation speed of fan of outdoor unit are selectively controlled compared with result.
Wherein, preset time can be random time between 25-35 seconds, and in the present embodiment, preset time is 30 seconds.
By comparing t and t0, selectively control compressor running frequency, throttle valve opening or indoor unit and/or
The rotation speed of fan of outdoor unit, to store part energy before air conditioner is defrosted, in this case, what is defrosted
In the process, this portion of energy of storage can add in indoor heating capacity, reduce to a certain extent air conditioner except
Influence during frost to indoor temperature, room temperature fluctuates excessive situation and occurs when so as to effectively prevent defrosting.
In step s 110, when judging whether air conditioner meets defrosting condition, those skilled in the art can select arbitrarily
Known judgment method, it is of the invention herein specific defrosting condition not to be defined.
In step s 130, if t-t0>=setting value then promotes the running frequency of compressor；If t-t0< is set
Value, then maintain the running frequency of compressor constant, and reduce throttle valve opening, and/or reduces the wind of indoor unit and/or outdoor unit
Machine rotating speed.Wherein, setting value can be arbitrary value between 0-2, in the present embodiment, setting value 1.
As an example, working as t-t0When >=1, then the running frequency of compressor is promoted into 10-15hz.Those skilled in the art
, it is understood that during air conditioner defrosts, indoor heating amount can reduce, and if by compressor frequency before entering defrosting
After rate is promoted, part energy is stored in compressor, then during air conditioner defrosting, this portion of energy is supplemented to room
Interior, room temperature fluctuation is excessive when to effectively prevent defrosting.
As an example, working as t-t0When < 1, then throttle valve opening is reduced into 20-40 steps；Or make indoor unit and/or outdoor
The rotation speed of fan of machine reduces 40-60rpm, and the rotation speed of fan of indoor unit and/or outdoor unit is preferably made to reduce 50rpm.Such one
Come, part energy can be stored before entering defrosting, then during air conditioner defrosting, this portion of energy is supplemented to room
Interior, room temperature fluctuation is excessive when to effectively prevent defrosting.
In conclusion technical solution through the invention, before air conditioner enters defrosting mode, according to t and t0Ratio
Running frequency, throttle valve opening or the indoor unit of compressor and/or the rotation speed of fan of outdoor unit are selectively controlled compared with result
Part energy is stored, during air conditioner defrosts, this portion of energy is supplemented to interior, when to effectively prevent defrosting
Room temperature fluctuation is excessive.It will be appreciated to those of skill in the art that by t and t0Comparison result as reference, Ke Yizhun
Corresponding energy storage mode really is selected, the fluctuation of room temperature when to farthest reduce defrosting.
So far, it has been combined preferred embodiment shown in the drawings and describes technical scheme of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific implementation modes.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these
Technical solution after change or replacement is fallen within protection scope of the present invention.
Claims (10)
1. a kind of air conditioner defrosting control method, which is characterized in that the defrosting control method includes the following steps：
During air conditioner heat-production is run, judge whether air conditioner meets defrosting condition；
If it is, before air conditioner enters defrosting mode, outdoor coil pipe used temperature t is obtained, and after being spaced preset time
Outdoor coil temperature t is obtained again0；
Compare t and t0, and selectively control according to comparison result running frequency, throttle valve opening or the indoor unit of compressor
And/or the rotation speed of fan of outdoor unit.
2. air conditioner defrosting control method according to claim 1, which is characterized in that " compare t and t0, and tied according to comparing
Fruit selectively controls running frequency, throttle valve opening or the indoor unit of compressor and/or the rotation speed of fan of outdoor unit " step
Suddenly include：
If t-t0>=setting value then promotes the running frequency of compressor；
If t-t0< setting values then maintain the running frequency of compressor constant, and reduce throttle valve opening, and/or reduce room
The rotation speed of fan of interior machine and/or outdoor unit.
3. air conditioner defrosting control method according to claim 2, which is characterized in that if t-t0>=setting value then will
The running frequency of the compressor promotes 10-15hz.
4. air conditioner defrosting control method according to claim 2, which is characterized in that if t-t0< setting values then will
The throttle valve opening reduces 20-40 steps.
5. air conditioner defrosting control method according to claim 2, which is characterized in that if t-t0< setting values, then make
The rotation speed of fan of the indoor unit and/or outdoor unit reduces 40-60rpm.
6. air conditioner defrosting control method according to claim 5, which is characterized in that if t-t0< setting values, then make
The rotation speed of fan of the indoor unit and/or outdoor unit reduces 50rpm.
7. the air conditioner defrosting control method according to any one of claim 2 to 6, which is characterized in that the setting value
Arbitrary value between 0-2.
8. air conditioner defrosting control method according to claim 7, which is characterized in that the setting value is 1.
9. air conditioner defrosting control method according to any one of claim 1 to 6, which is characterized in that when described default
Between for the random time between 25-35 seconds.
10. air conditioner defrosting control method according to claim 9, which is characterized in that the preset time is 30 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509705.4A CN108758973B (en) | 2018-05-24 | 2018-05-24 | Defrosting control method for air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509705.4A CN108758973B (en) | 2018-05-24 | 2018-05-24 | Defrosting control method for air conditioner |
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| Publication Number | Publication Date |
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| CN108758973A true CN108758973A (en) | 2018-11-06 |
| CN108758973B CN108758973B (en) | 2020-11-03 |
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| CN201810509705.4A Active CN108758973B (en) | 2018-05-24 | 2018-05-24 | Defrosting control method for air conditioner |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454912A (en) * | 2019-08-05 | 2019-11-15 | 广东美的制冷设备有限公司 | Air-conditioning system and its lasting heat-production control method |
| CN110470002A (en) * | 2019-08-02 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN111561760A (en) * | 2020-05-06 | 2020-08-21 | 广东美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and computer storage medium |
| CN112880129A (en) * | 2021-01-27 | 2021-06-01 | 青岛海尔空调器有限总公司 | Air conditioner and method and device for defrosting control of air conditioner |
| CN113587368A (en) * | 2021-07-21 | 2021-11-02 | 珠海格力电器股份有限公司 | Cleaning method, device and equipment of air conditioner and storage medium |
| CN115289615A (en) * | 2022-08-04 | 2022-11-04 | 河南城建学院 | Automatic defrosting control method and system for air conditioner |
| WO2023207165A1 (en) * | 2022-04-28 | 2023-11-02 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner, and storage medium |
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| CN105674647A (en) * | 2016-03-21 | 2016-06-15 | 珠海格力电器股份有限公司 | Defrosting control method for variable-capacity compressor system |
| CN205641708U (en) * | 2016-04-29 | 2016-10-12 | 广东美的制冷设备有限公司 | Air conditioning system |
| CN106705304A (en) * | 2017-01-10 | 2017-05-24 | 美的集团武汉制冷设备有限公司 | Air conditioner and defrosting control method of air conditioner |
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2018
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| JP2010096474A (en) * | 2008-10-20 | 2010-04-30 | Daikin Ind Ltd | Air-conditioning control device and air conditioning system |
| CN105674647A (en) * | 2016-03-21 | 2016-06-15 | 珠海格力电器股份有限公司 | Defrosting control method for variable-capacity compressor system |
| CN205641708U (en) * | 2016-04-29 | 2016-10-12 | 广东美的制冷设备有限公司 | Air conditioning system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470002A (en) * | 2019-08-02 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN110454912A (en) * | 2019-08-05 | 2019-11-15 | 广东美的制冷设备有限公司 | Air-conditioning system and its lasting heat-production control method |
| CN110454912B (en) * | 2019-08-05 | 2021-03-19 | 广东美的制冷设备有限公司 | Air conditioning system and continuous heating control method thereof |
| CN111561760A (en) * | 2020-05-06 | 2020-08-21 | 广东美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and computer storage medium |
| CN112880129A (en) * | 2021-01-27 | 2021-06-01 | 青岛海尔空调器有限总公司 | Air conditioner and method and device for defrosting control of air conditioner |
| CN113587368A (en) * | 2021-07-21 | 2021-11-02 | 珠海格力电器股份有限公司 | Cleaning method, device and equipment of air conditioner and storage medium |
| WO2023207165A1 (en) * | 2022-04-28 | 2023-11-02 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner, and storage medium |
| CN115289615A (en) * | 2022-08-04 | 2022-11-04 | 河南城建学院 | Automatic defrosting control method and system for air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108758973B (en) | 2020-11-03 |
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Effective date of registration: 20201103 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |