CN108592294A - Air conditioner defrosting control method - Google Patents
Air conditioner defrosting control method Download PDFInfo
- Publication number
- CN108592294A CN108592294A CN201810509464.3A CN201810509464A CN108592294A CN 108592294 A CN108592294 A CN 108592294A CN 201810509464 A CN201810509464 A CN 201810509464A CN 108592294 A CN108592294 A CN 108592294A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- control method
- setting values
- defrosting control
- outdoor
- 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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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
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
-
- 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
- F24F2110/12—Temperature of the outside air
-
- 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
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 air conditioner defrosting control method proposed by the present invention 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, indoor environment temperature and outdoor environment temperature are obtained；According to the value of pn and dn, running frequency, throttle valve opening or the indoor unit of compressor and/or the rotation speed of fan of outdoor unit are selectively controlled；Wherein, pn=preset temperatures-outdoor environment temperature；Dn=indoor environment temperatures-outdoor environment temperature.The present invention is before air conditioner enters defrosting mode, part energy is stored based on the rotation speed of fan of dn and pn running frequency, throttle valve opening or the indoor unit and/or outdoor unit for selectively controlling compressor, 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, indoor ring is obtained
Border temperature and outdoor environment temperature；According to the value of pn and dn, selectively control the running frequency of compressor, throttle valve opening or
The rotation speed of fan of person's indoor unit and/or outdoor unit；Wherein, pn=preset temperatures-outdoor environment temperature；Dn=indoor environment temperature
Degree-outdoor environment temperature.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " according to the value of pn and dn, selectively control
The step of running frequency, throttle valve opening or the indoor unit of compressor and/or rotation speed of fan of outdoor unit " includes：If pn
>=the first setting value, and the setting values of dn >=second, then promote the running frequency of compressor；If the first setting values of pn ＜, or
The second setting values of dn ＜, then maintain the running frequency of compressor constant, and reduce throttle valve opening, and/or reduce indoor unit and/
Or the rotation speed of fan of outdoor unit.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if the setting values of pn >=first, and dn >=the
The running frequency of the compressor is then promoted 10-15hz by two setting values.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if the first setting values of pn ＜ or dn ＜
The throttle valve opening is then reduced 20-40 steps by the second setting value.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if the first setting values of pn ＜ or dn ＜
Second setting value then makes the rotation speed of fan of the indoor unit and/or outdoor unit reduce 40-60rpm.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if the first setting values of pn ＜ or dn ＜
Second setting value then makes the rotation speed of fan of the indoor unit and/or outdoor unit reduce 50rpm.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, first setting value appointing between 0-2
Meaning value；And/or arbitrary value of second setting value between 9-11.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, first setting value is 1；And/or
Second setting value is 10.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the preset temperature can be at 16-30 DEG C
Selection in range.
Technical solution through the invention is based on indoor environment temperature and outdoor before air conditioner enters defrosting mode
The difference dn and preset temperature of environment temperature and the difference pn of outdoor environment temperature selectively control the operation frequency of compressor
The rotation speed of fan of rate, throttle valve opening or indoor unit and/or outdoor unit stores part energy, defrosts process in air conditioner
In, this portion of energy is supplemented to interior, and room temperature fluctuation is excessive when to effectively prevent defrosting.Those skilled in the art's energy
Enough understand, as reference by difference pn and difference dn, can accurately select corresponding energy storage mode, to utmostly
The fluctuation of room temperature when ground reduces 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 so, if it is, air conditioner enter defrosting mode it
Before, obtain indoor environment temperature and outdoor environment temperature；S130, according to the value of pn and dn, selectively control the fortune of compressor
The rotation speed of fan of line frequency, throttle valve opening or indoor unit and/or outdoor unit.Wherein, pn=preset temperatures-outdoor environment
Temperature；Dn=indoor environment temperatures-outdoor environment temperature.Wherein, preset temperature can be arranged by User Defined, such as can
To set preset temperature to the arbitrary temp between 16-30 DEG C.
According to the value of pn and dn, 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 the setting values of pn >=first, and setting values of dn >=second then promote the operation frequency of compressor
Rate；If the second setting value of the first setting values of pn ＜ or dn ＜, maintains the running frequency of compressor constant, and reduce section
Valve opening is flowed, and/or reduces the rotation speed of fan of indoor unit and/or outdoor unit.Wherein, the first setting value can be appointed between 0-2
Meaning value, the arbitrary value that the second setting value can be between 9-11, in the present embodiment, the first setting value are 1, and the second setting value is
10。
As an example, working as pn >=1, and when dn >=10, then the running frequency of compressor is promoted into 10-15hz.This field skill
, it is understood that during air conditioner defrosts, indoor heating amount can reduce art personnel, and if will pressure before entering defrosting
After contracting unit frequency is promoted, part energy is stored in compressor, then during air conditioner defrosting, this portion of energy is supplemented
To interior, room temperature fluctuation is excessive when to effectively prevent defrosting.
As an example, as pn ＜ 1 or dn ＜ 10, then throttle valve opening is reduced into 20-40 steps；Or make indoor unit
And/or the rotation speed of fan of outdoor unit reduces 40-60rpm, preferably makes the reduction of the rotation speed of fan of indoor unit and/or outdoor unit
50rpm.So, part energy can be stored before entering defrosting, then during air conditioner defrosting, this portion of energy
It is supplemented to interior, room temperature fluctuation is excessive when to effectively prevent defrosting.
In conclusion technical solution through the invention is based on indoor environment temperature before air conditioner enters defrosting mode
Degree and the difference dn and preset temperature of outdoor environment temperature and the difference pn of outdoor environment temperature, selectively control compressor
The rotation speed of fan of running frequency, throttle valve opening or indoor unit and/or outdoor unit stores part energy, removes in air conditioner
During frost, this portion of energy is supplemented to interior, and room temperature fluctuation is excessive when to effectively prevent defrosting.Art technology
Personnel are, it is understood that as reference by difference pn and difference dn, can accurately select corresponding energy storage mode, to most
The fluctuation of room temperature when reducing defrosting to big degree.
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 (9)
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, indoor environment temperature and outdoor environment temperature are obtained；
According to the value of pn and dn, running frequency, throttle valve opening or indoor unit and/or the outdoor of compressor are selectively controlled
The rotation speed of fan of machine；
Wherein, pn=preset temperatures-outdoor environment temperature；Dn=indoor environment temperatures-outdoor environment temperature.
2. air conditioner defrosting control method according to claim 1, which is characterized in that " according to the value of pn and dn, selectivity
Ground control compressor running frequency, throttle valve opening or indoor unit and/or outdoor unit rotation speed of fan " the step of include：
If the setting values of pn >=first, and the setting values of dn >=second, then promote the running frequency of compressor；
If the second setting value of the first setting values of pn ＜ or dn ＜, maintains the running frequency of compressor constant, and reduce section
Valve opening is flowed, and/or reduces the rotation speed of fan of indoor unit and/or outdoor unit.
3. air conditioner defrosting control method according to claim 2, which is characterized in that if the setting values of pn >=first, and
The running frequency of the compressor is then promoted 10-15hz by the setting values of dn >=second.
4. air conditioner defrosting control method according to claim 2, which is characterized in that if the first setting values of pn ＜, or
The throttle valve opening is then reduced 20-40 steps by person dn the second setting values of ＜.
5. air conditioner defrosting control method according to claim 2, which is characterized in that if the first setting values of pn ＜, or
Person dn the second setting values of ＜ then make the rotation speed of fan of the indoor unit and/or outdoor unit reduce 40-60rpm.
6. air conditioner defrosting control method according to claim 5, which is characterized in that if the first setting values of pn ＜, or
Person dn the second setting values of ＜ then make the rotation speed of fan of the indoor unit and/or outdoor unit reduce 50rpm.
7. the air conditioner defrosting control method according to any one of claim 2 to 6, which is characterized in that described first sets
Arbitrary value of the definite value between 0-2；And/or
Arbitrary value of second setting value between 9-11.
8. air conditioner defrosting control method according to claim 7, which is characterized in that first setting value is 1；And
And/or person
Second setting value is 10.
9. air conditioner defrosting control method according to any one of claim 1 to 6, which is characterized in that the default temperature
Degree can select in the range of 16-30 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509464.3A CN108592294B (en) | 2018-05-24 | 2018-05-24 | Defrosting control method for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509464.3A CN108592294B (en) | 2018-05-24 | 2018-05-24 | Defrosting control method for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108592294A true CN108592294A (en) | 2018-09-28 |
| CN108592294B CN108592294B (en) | 2020-09-25 |
Family
ID=63629081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810509464.3A Active CN108592294B (en) | 2018-05-24 | 2018-05-24 | Defrosting control method for air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173825A (en) * | 2019-05-31 | 2019-08-27 | 广东美的制冷设备有限公司 | Progress control method, control device, air conditioner and computer readable storage medium |
| CN111174372A (en) * | 2019-12-31 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN111536657A (en) * | 2020-03-03 | 2020-08-14 | 青岛海尔空调器有限总公司 | Method for cleaning air conditioner and air conditioner |
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| CN107166639A (en) * | 2017-05-10 | 2017-09-15 | 青岛海尔空调器有限总公司 | A kind of air conditioner defrosting control method, control device and air conditioner |
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| JPH0828932A (en) * | 1994-07-13 | 1996-02-02 | Tokyo Electric Power Co Inc:The | Thermal storage type air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173825A (en) * | 2019-05-31 | 2019-08-27 | 广东美的制冷设备有限公司 | Progress control method, control device, air conditioner and computer readable storage medium |
| CN111174372A (en) * | 2019-12-31 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN111536657A (en) * | 2020-03-03 | 2020-08-14 | 青岛海尔空调器有限总公司 | Method for cleaning air conditioner and air conditioner |
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| CN108592294B (en) | 2020-09-25 |
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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 Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |