CN105222285B - Control system and control method for heating and frosting of air conditioner - Google Patents
Control system and control method for heating and frosting of air conditioner Download PDFInfo
- Publication number
- CN105222285B CN105222285B CN201510744247.9A CN201510744247A CN105222285B CN 105222285 B CN105222285 B CN 105222285B CN 201510744247 A CN201510744247 A CN 201510744247A CN 105222285 B CN105222285 B CN 105222285B
- Authority
- CN
- China
- Prior art keywords
- temperature
- air
- frosting
- outdoor unit
- control method
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004378 air conditioning Methods 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract 3
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 239000003507 refrigerant Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 13
- 238000010257 thawing Methods 0.000 abstract description 11
- 230000009471 action Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000033228 biological regulation Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- PIRWNASAJNPKHT-SHZATDIYSA-N pamp Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCNC(N)=N)C(N)=O)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CO)NC(=O)[C@H](C)NC(=O)[C@@H](NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](C)N)C(C)C)C1=CC=CC=C1 PIRWNASAJNPKHT-SHZATDIYSA-N 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012360 testing method 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
- F24F11/89—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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control system for heating and frosting of an air conditioner, which comprises an air conditioning system, wherein the air conditioning system comprises an outdoor unit heat exchanger (3), an electronic expansion valve (8), a compressor (1) and an outdoor motor (4), and further comprises an outer ring temperature detection element (6), an outer pipe temperature detection element arranged on the outdoor unit heat exchanger (3) and a controller (7) electrically connected with the elements, wherein the controller (7) outputs control signals to one or more of the electronic expansion valve (8), the compressor (1) and the outdoor motor (4). According to the control system disclosed by the invention, the frostless control can be carried out on the frosting process of the heating outdoor unit, so that the comfort of indoor heating is improved; the frosting period is prolonged, and the defrosting action in the using process of a user is reduced; the process is simple, and the cost is reduced; the active defrosting overcomes the defect of passive defrosting. The invention also relates to a control method for frosting control by using the system.
Description
Technical field
The invention belongs to air-conditioning technical field, and in particular to a kind of control system and control method of air-conditioning heating frosting.
Background technology
When being heated in the air-conditioning system of currently available technology under the conditions of winter low temperature and high humidity to interior, outdoor unit
Heat exchanger generally can frosting, outer fan delivery can be caused to reduce after frosting, heat transfer effect is deteriorated, causes indoor not supply normally
Heat.Therefore need to defrost to it.
The method for controlling of operation of Patent No. CN87105945A air conditioner of heat pump type is defrosted by bypass line,
And compressor pasta loss when being to reduce defrosting of the purpose of regulating frequency, cause technique more complicated, and cost is higher.
What the operating control device of the air conditioner of Patent No. 94190846.1 illustrated is that a kind of control refrigerant-recovery is laggard
The mode of row defrosting, it is still only to be only capable of being controlled defrosting after frosting, for Frost formation process without control device, when frosting
When fast, easily enter frequent defrost and act, influence the comfortableness that heating uses；
What the Defrost method of the air conditioner of Patent No. 201010190140.1 and application illustrated is still conventional Defrost method,
Passively defrosted using detecting system to there is frostless judgement.
It is only capable of being controlled defrosting after frosting because the Defrost mode of air-conditioning system of the prior art is present, for knot
White process, when frosting is too fast, easily enters frequent defrost and acted, actively can not in time defrost, have a strong impact on without control device
The comfortableness that indoor heating uses, and the technical problems such as technique is more complicated, cost is higher, therefore research and design of the present invention goes out one kind
The control system and control method of air-conditioning heating frosting.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome the Defrost mode of air-conditioning system of the prior art to exist
It is only capable of being controlled defrosting after frosting, for Frost formation process without control device, has a strong impact on indoor heating comfort
Defect, so as to provide a kind of control system and control method of air-conditioning heating frosting.
The present invention provides a kind of control system of air-conditioning heating frosting, including air-conditioning system, the air-conditioning system include room
Outer machine heat exchanger, electric expansion valve, compressor and outdoor motor, it also includes outer shroud temperature detecting element and is arranged at outdoor unit and changes
Outer tube temperature detecting element on hot device and the controller electrically connected with said elements, the controller export control signal
One or more of to electric expansion valve, compressor and outdoor motor.
Preferably, the temperature outside detecting element is arranged on the outer wall bottom, middle part, its temperature of the outdoor unit heat exchanger
At degree lowest part, refrigerant inlet or exit.
Preferably, the air-conditioning system also includes being arranged at the indoor inner tube temperature detecting element for being used to detect indoor temperature.
Preferably, in the outer tube temperature detecting element, the environment temperature detecting element and said inner tube temperature detecting element
It is at least one be temperature temperature-sensitive bag.
Preferably, the air-conditioning system is frequency-conversion air-conditioning system.
The present invention also provides a kind of control method of air-conditioning heating frosting, and it utilizes the control of foregoing air-conditioning heating frosting
System carries out frosting control and regulation to the air-conditioning system.
Preferably, as the outdoor environment temperature T that outer shroud temperature detector survey element testing obtainsOuter shroudWhen reaching the temperature range of setting
The outer tube temperature changing trend △ T of outdoor unit heat exchanger are monitored.
Preferably, the temperature range set is -5~2 degree.
Preferably, detected in time outside obtained outdoor unit heat exchanger by the outer tube temperature detecting element on outdoor unit heat exchanger
Pipe temperature TOuter tube, recycle controller to carry out the variation tendency △ T=T that analysis judges outdoor unit heat exchanger temperature outsideOuter tube-TOuter shroud,
When △ T reach the first assigned temperature, in adjustment expansion valve step number, adjustment compressor frequency, regulation outdoor motor rotating speed to
One item missing.
Preferably, when △ T are less than first assigned temperature, the step number of expansion valve is reduced；And/or reduce compressor
Frequency；And/or reduce outdoor motor rotating speed.
Preferably, when △ T are more than first assigned temperature, the step number of expansion valve is increased；And/or increase compressor
Frequency；And/or rise motor speed；Or, maintain original operation constant.
Preferably, first assigned temperature is 0~-6 degree.
Preferably, when △ T make it that indoor environment significantly cools less than the second assigned temperature, direct regulating system makes its fast
Speed reaches the condition of defrost.
Preferably, the operation of the directly regulating system includes increasing the step number of expansion valve；And/or increase compressor frequency
Rate；And/or improve motor speed.
Preferably, second assigned temperature is -7~-12 degree.
The control system and control method of air-conditioning heating frosting provided by the invention have the advantages that：
Frostless control is carried out to the Frost formation process of heating outdoor unit 1. can realize, the defrost during reduction user's use is moved
Make；Effectively prevent frosting or delayed reach produce frosting time, so as to be effectively guaranteed be unlikely to due to
Frosting and cause the unexpected descent tape of indoor temperature come it is uncomfortable, improve the comfortableness that indoor heating uses；
2. can actively adjust and defrost, overcome and lacked using detecting system to what is had frostless judgement and passively defrost
Fall into；
3. the thickness of frosting layer and the length of heat pamp by frequency modulation control outdoor unit temperature outside, can also be limited,
Technique is simple, and cost reduces.
Brief description of the drawings
Indoor leaving air temp and the relation schematic diagram of time when Fig. 1 is the air-conditioning system heating operation of prior art；
Fig. 2 is the structural representation of the control system of the air-conditioning heating frosting of the present invention；
Indoor leaving air temp and the relation schematic diagram of time when Fig. 3 is the air-conditioning system heating operation of the present invention.
Reference is expressed as in figure：
1-compressor, 2-four-way valve, 3-outdoor heat exchanger, 4-outdoor motor, 5-temperature outside detecting element, 6-
Environment temperature detecting element, 7-controller, 8-electric expansion valve, 9-indoor heat exchanger, 10-gas-liquid separator.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to protection scope of the present invention.
As shown in Fig. 2 the present invention provides a kind of control system of air-conditioning heating frosting, including air-conditioning system, the air-conditioning
System includes outdoor unit heat exchanger 3, electric expansion valve 8, compressor 1 and outdoor motor 4, and it also includes being used to detect outdoor environment
The outer shroud temperature detecting element 6 of temperature and the outer tube temperature detecting element 5 being arranged on outdoor unit heat exchanger 3 and equal with said elements
The controller 7 of electrical connection, the controller 7 export control signal into electric expansion valve 8, compressor 1, outdoor motor 4
It is one or more.Here outdoor motor drives fan to be aided in outdoor unit heat exchanger and strengthened the effect of radiating.
The temperature of outdoor environment can be accurately and effectively detected by outer shroud temperature detecting element, member is surveyed by outer tube temperature detector
Part can accurately and effectively detect the temperature on outdoor unit heat exchanger, then the above-mentioned temperature signal detected is delivered into control
Device, it is analyzed and judged using controller, draw the outer tube temperature change on outdoor unit heat exchanger in following certain time
Trend temperature value △ T, then corresponding operating procedure is performed by outer tube temperature variation tendency temperature value △ T, operating procedure is believed
Number output performs corresponding step (variable expansion valve aperture or step to electric expansion valve and/or compressor and/or outdoor motor
Number, and/or regulation compressor frequency, and/or the rotating speed for adjusting outdoor motor), to adjust Air Conditioning Cycle power and heat,
The size of cold so that the outer tube temperature variation tendency temperature value of outdoor unit heat exchanger is unlikely to specified temperature during less than generation frosting
Degree, so as to effectively prevent frosting or delay to reach the time for producing frosting, it is unlikely to so as to be effectively guaranteed
Cause the unexpected descent tape of indoor temperature due to frosting uncomfortable, improve the comfortableness that indoor heating uses；It can lead
Dynamic regulation defrosting, overcome using detecting system to there is frostless judgement and the defects of passively defrost；Realize to heating outdoor unit
Frost formation process carries out frostless control, reduces the defrost action during user's use；Outside can also be by frequency modulation control outdoor unit
Side temperature, the thickness of frosting layer and the length of heat pamp are limited, technique is simple, and cost reduces.
Preferably, the temperature outside detecting element 5 is arranged on the outer wall bottom of outdoor unit heat exchanger 3.This is a kind of
Temperature outside detecting element is preferable to provide mode, can detect the temperature on the outside of outdoor unit heat exchanger exactly.
Preferably, temperature outside detecting element 5 is arranged at the refrigerant inlet of outdoor unit heat exchanger 3 or exit.
This is also that a kind of temperature outside detecting element is preferable to provide mode, can be detected exactly on the outside of outdoor unit heat exchanger
Temperature.
Preferably, the temperature outside detecting element 5 is arranged in the middle part of the outer wall of outdoor unit heat exchanger 3.This is also one
The temperature for being preferable to provide mode, can detecting on the outside of outdoor unit heat exchanger exactly of kind temperature outside detecting element.
Preferably, the temperature outside detecting element 5 is arranged at the temperature lowest part of outdoor unit heat exchanger 3.This is also one
The temperature for being preferable to provide mode, can detecting on the outside of outdoor unit heat exchanger exactly of kind temperature outside detecting element.
Preferably, the air-conditioning system also includes being arranged at the indoor inner tube temperature detecting element for being used to detect indoor temperature
(not shown).The temperature of interior can in real time and be accurately and effectively detected by the inner tube temperature detecting element being disposed in the interior,
Temperature variations indoor in frosting control process are accurately judged to, good data feedback is provided to frosting control process
Effect, interpretation of result value is provided to indoor comfortable degree.
Preferably, the temperature outside detecting element 5, and/or the environment temperature detecting element 6, and/or the inner side
Detector unit is temperature temperature-sensitive bag.This is the preferable structure and species of detector unit.Certainly need not can also limit to
In the thermometric mode of temperature-sensitive bag.
Preferably, the air-conditioning system is frequency-conversion air-conditioning system.Can be effectively to compressor using frequency-conversion air-conditioning system
Frequency be adjusted, so as to reach to air-conditioning system heating, refrigerating capacity intensity be adjusted, have effectively achieved to outdoor
The control action of machine heat exchanger frosting.
The present invention also provides a kind of control method of air-conditioning heating frosting, and it utilizes the control of foregoing air-conditioning heating frosting
System carries out frosting control and regulation to the air-conditioning system.So enable to the outer tube temperature variation tendency temperature of outdoor unit heat exchanger
Angle value is unlikely to assigned temperature during less than generation frosting, and knot is produced so as to effectively prevent frosting or delay to reach
The time of frost, it is unlikely to cause the uncomfortable of the unexpected descent tape of indoor temperature due to frosting so as to be effectively guaranteed, carries
The comfortableness that high indoor heating uses；Defrosting can actively be adjusted, overcome using detecting system to there is frostless judgement and
The defects of passive defrosting；It can also realize and frostless control is carried out to heating outdoor unit, reduce the defrost action during user's use；
By frequency modulation control outdoor unit temperature outside, the thickness of frosting layer and the length of heat pamp can also be limited, technique is simple, into
This reduction.
Preferably, when outer shroud temperature detecting element 6 detects when obtained outdoor environment temperature reaches the temperature range of setting pair
The outer tube temperature changing trend △ T of outdoor unit heat exchanger 3 are monitored.It is because working as air-conditioning system to take such control condition
Frosting situation just occurs when being less than certain temperature in the environment temperature being in, if being not in frosting when higher than the temperature
Situation, therefore the situation for the idle work for doing invalid operational motion is avoided, also as frosting control provides effective premise
Condition.
Preferably, the temperature range set is -5~2 degree.This is the outdoor ring that frosting occurs for conventional air-conditioning system
The temperature range of border temperature, it is set to that such design temperature section can prevent frosting action from providing the behaviour of premise for after
Make condition, frost-free to greatest extent when ensureing air-conditioning system operation.It is further preferred that can be to the temperature range of the setting
Subdivided, such as -5~-4 degree, -4~-3 degree etc..
Preferably, as shown in figure 3, it illustrates indoor leaving air temp during air-conditioning system heating operation of the present invention and time
Relation schematic diagram.Wherein：
A segment tables show the indoor process normally heated；
B segment tables show outer tube temperature trend △ T<During the first assigned temperature, carrying out system fading margin compensation makes △ T all the time>First refers to
Constant temperature degree, delay to reach the stage of frosting；
C segment tables show outer tube temperature variation tendency △ T<During the second assigned temperature, in the stage of direct regulating system, (make it as early as possible
Reach the condition for being capable of defrost)；
D segment tables show the stage of normal defrost.
Obtained outdoor unit heat exchanger outer tube temperature is detected by the outer tube temperature detecting element 5 on outdoor unit heat exchanger 3 in time
TOuter tube, carry out analyzing variation tendency △ the T (=T for judging outer tube temperature using controller 7Outer tube-TOuter shroud), specify temperature when △ T reach first
When spending, expansion valve step number, and/or adjustment compressor frequency, and/or regulation outdoor motor rotating speed are adjusted.So can be to frosting
Process is suppressed, and realizes heating outdoor unit under frostless control and the prolongation load when heating outdoor unit under sub-load faces frosting
The frosting cycle or greatly prolong the frosting cycle, reduce user's use during defrost action, improve indoor heating use
Comfortableness.
Preferably, when △ T are less than the first assigned temperature, the step number of expansion valve is reduced；And/or reduce compressor frequency；
And/or reduce outdoor motor rotating speed.Showing the outer tube of now outdoor unit heat exchanger when △ T are less than assigned temperature will produce
Frost is given birth to, therefore the intensity of system operation can be reduced by above-mentioned regulation so that the automatic varying loading of system, makes room
Line temperature rises on the outside of outer machine, maintains △ T>First assigned temperature, extend the time that frosting does not occur for outer machine, although now whole
Machine provides heating capacity than step-down under usual conditions, but due to the obstruction of no frost layer, the coefficient of heat transfer still greater than the effect after frosting,
Complete machine leaving air temp keeps shallower decline, greatly improves comfortableness.
Explanation is needed exist for, intensity and work(to refrigerant throttling expansion can be reduced by reducing the step number of expansion valve
Rate, reach the purpose for reducing air-conditioning system heating circulating power；Reduction sky can directly be reached by reducing compressor operating frequency
Adjusting system heats the purpose of circulating power；In addition, outdoor motor drives fan to carry out auxiliary heat dissipation to outdoor unit heat exchanger, therefore
The intensity and power of outdoor heat exchanger evaporation endothermic can be effectively reduced by reducing outdoor motor rotating speed, and final obtain prevents frosting
Or delay the effect of frosting.
Preferably, when △ T are more than the first assigned temperature, the step number of expansion valve is increased；And/or increase compressor frequency；
And/or rise motor speed；Or, maintain original operation constant.Show now outdoor unit heat exchange when △ T are more than assigned temperature
Device outer tube is also not up to frosting or i.e. by the degree of frosting, therefore now can be by maintaining original operation or further increasing
Powerful action so that the effect to indoor heating can also be further improved on the basis of frost-free.
Preferably, first assigned temperature is 0~-6 degree.It is basis to select and be set as -6 degree by the first assigned temperature
What substantial amounts of experiment and result of study were drawn, generally in outdoor unit heat exchanger outer tube temperature TOuter tubeLess than outdoor environment temperature TOuter shroud
The phenomenon of frosting can occur at 6 degree, such setting can effectively ensure and prevent the phenomenon of outdoor unit heat exchanger frosting from sending out
Time that is raw and delaying frosting so that complete machine leaving air temp keeps the gentle comfortable journey for declining, being effectively improved indoor environment
Degree.This certain basis is to have to meet in TOuter shroudReaching can meet under set temperature range (such as -5~2 degree)
's.And it is also to change according to first assigned temperature under each region, various meteorological conditions, can be according to reality
Situation is adjusted.
Here further preferred first assigned temperature is -5 degree, it is assumed that when outer shroud=2 degree, frosting is certain when outer tube=- 3 are spent
Thickness effect performance, now △ T=-3-2=-5 degree, as △ T<When -5.Illustrate that frosting starts to become thicker.At this moment regulation is passed through
Electric expansion valve or outer blower fan, outer tube temperature can be caused to raise, maintain △ T>- 5 degree.
Preferably, when △ T make it that indoor environment significantly cools less than the second assigned temperature, it is meant that now outdoor unit changes
The frost layer of hot device outer tube is thicker, calculates that now indoor heat exchange becomes very poor, does not now continue to delay time of frosting not
The temperature of interior can be maintained or improve (to seriously affect the operation of air-conditioning system because frost layer is thicker, it is swollen to continue through regulation
Swollen valve or outer blower fan etc. can not also make △ T become big), then now direct regulating system makes it be rapidly achieved the condition of defrost, so as to
Shorten the time that indoor temperature reduces so that complete defrost as early as possible, recover normal indoor heating, improve the comfortableness of interior.
The operation of further preferably described directly regulating system includes increasing the step number of expansion valve；And/or increase compressor
Frequency；And/or improve motor speed so that effectively shorten air-conditioning system and reach the time that can carry out direct defrost so that
Air-conditioning system can reach as early as possible can be with the degree of defrost.
Preferably, second assigned temperature is -7~-12 degree.Selecting and be set as -10 to spend the second assigned temperature is
Drawn according to substantial amounts of experiment and result of study, the phenomenon of thicker, the serious frosting of frost layer can occur when generally reaching the temperature,
Cause indoor heat exchange to become very poor, now cause operation antiport to accelerate the degree of outdoor condensation heat release, shortening that it reaches can
To carry out the time of defrost, so as to reduce the time of indoor uncomfortable (temperature reduction).
Here further preferred second assigned temperature is -10 degree, when △ T are low arrives value (- 10 degree), is expanded by adjusting
Valve and outer blower fan can not also make △ T become big, then are directly entered quick defrost.
Preferably, after the step of direct regulating system makes the condition that it is rapidly achieved defrost, the dynamic of defrost is just performed
Make.The direction of the circulation loop by four-way valve conversion refrigerant can further preferably be selected so that outdoor unit heat exchanger
Heating, indoor refrigeration, to reach the purpose directly to be defrosted to outdoor unit frosting.
The present invention makes the thickness and heat pamp that frosting layer is limited under some loads by frequency modulation control outdoor unit Guan Wen
Length；Change flow and system loading using the adjustable electronic valve and Frequency Adjustable rotating speed of system under some loads, in not shadow
Ring under the conditions of comfortableness effectively control Frost formation process, can at utmost lower intelligence the frequent frosting defrost of prevention, and in frosting
Timely defrost during thickness effect comfortableness, it is a kind of intelligent mode of active regulating system.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.With
Only it is the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
On the premise of departing from the technology of the present invention principle, some improvement and modification can also be made, these improvement and modification also should be regarded as this
The protection domain of invention.
Claims (10)
1. a kind of control method of air-conditioning heating frosting, including air-conditioning system, the air-conditioning system include outdoor unit heat exchanger
(3), electric expansion valve (8), compressor (1) and outdoor motor (4), it is characterised in that：Also include outer shroud temperature detecting element (6) and
The outer tube temperature detecting element (5) being arranged on outdoor unit heat exchanger (3) and the controller (7) electrically connected with said elements,
The controller (7) exports control signal to one or more in electric expansion valve (8), compressor (1) and outdoor motor (4)
It is individual；
As the outdoor environment temperature T that outer shroud temperature detecting element (6) detection obtainsOuter shroudTo outdoor unit when reaching the temperature range of setting
The outer tube temperature changing trend △ T of heat exchanger (3) are monitored；
Obtained outdoor unit heat exchanger outer tube temperature is detected by the outer tube temperature detecting element (5) on outdoor unit heat exchanger (3) in time
Spend TOuter tube, recycle controller to carry out analysis and judge outer tube temperature changing trend △ T=TOuter tube-TOuter shroud, specified when △ T are less than first
During temperature, reduce the step number of expansion valve, and/or, compressor frequency is reduced, and/or, reduce outdoor motor rotating speed；When △ T are more than
During the first assigned temperature, increase the step number of expansion valve, and/or, increase compressor frequency, and/or, raise motor speed, Huo,Wei
It is constant to hold original operation.
2. the control method of air-conditioning heating frosting according to claim 1, it is characterised in that：The temperature range of the setting
For -5~2 degree.
3. the control method of the air-conditioning heating frosting according to one of claim 1-2, it is characterised in that：Described first specifies
Temperature is 0~-6 degree.
4. the control method of the air-conditioning heating frosting according to one of claim 1-2, it is characterised in that：When △ T are less than the
When two assigned temperatures make it that indoor environment significantly cools, direct regulating system makes it be rapidly achieved the condition of defrost.
5. the control method of air-conditioning heating frosting according to claim 4, it is characterised in that：The directly regulating system
Operation includes increasing the step number of expansion valve；And/or increase compressor frequency；And/or improve motor speed.
6. the control method of air-conditioning heating frosting according to claim 4, it is characterised in that：Second assigned temperature
For -7~-12 degree.
7. the control method of air-conditioning heating frosting according to claim 1, it is characterised in that：The outer tube temperature detecting element
(5) the outer wall bottom of the outdoor unit heat exchanger (3), middle part, its temperature lowest part, at refrigerant inlet or outlet are arranged on
Place.
8. the control method of the air-conditioning heating frosting according to one of claim 1-2, it is characterised in that：The air-conditioning system
Also include being arranged at the indoor inner tube temperature detecting element for being used to detect indoor temperature.
9. the control method of air-conditioning heating frosting according to claim 8, it is characterised in that：The outer tube temperature detecting element
(5), at least one in the outer shroud temperature detecting element (6) and said inner tube temperature detecting element is temperature temperature-sensitive bag.
10. the control method of air-conditioning heating frosting according to claim 1, it is characterised in that：The air-conditioning system is change
Frequency air-conditioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744247.9A CN105222285B (en) | 2015-11-03 | 2015-11-03 | Control system and control method for heating and frosting of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744247.9A CN105222285B (en) | 2015-11-03 | 2015-11-03 | Control system and control method for heating and frosting of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105222285A CN105222285A (en) | 2016-01-06 |
| CN105222285B true CN105222285B (en) | 2018-01-23 |
Family
ID=54991397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510744247.9A Active CN105222285B (en) | 2015-11-03 | 2015-11-03 | Control system and control method for heating and frosting of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105222285B (en) |
Families Citing this family (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401811A (en) * | 2017-07-26 | 2017-11-28 | 日照职业技术学院 | Air conditioner defrosting system for automobile |
| CN107940677A (en) * | 2017-10-31 | 2018-04-20 | 青岛海尔空调器有限总公司 | A kind of control method and device for slowing down air-conditioner outdoor unit frosting |
| CN108444037B (en) * | 2018-02-14 | 2021-01-29 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN108413561A (en) * | 2018-02-14 | 2018-08-17 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN108444036A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN108488994A (en) * | 2018-02-14 | 2018-09-04 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN108444047A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN108444132A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN108444133A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN108240696A (en) * | 2018-03-15 | 2018-07-03 | 重庆物奇科技有限公司 | A kind of air-conditioner defrosting deicing system and method |
| CN108716756B (en) * | 2018-05-24 | 2020-10-23 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner and computer readable storage medium |
| CN108800416A (en) * | 2018-05-24 | 2018-11-13 | 青岛海尔空调器有限总公司 | air conditioner defrosting control method |
| CN108800417B (en) * | 2018-05-28 | 2021-03-16 | 青岛海尔空调器有限总公司 | Defrosting control method and system for outdoor unit of air conditioner |
| CN108800418A (en) * | 2018-06-13 | 2018-11-13 | 珠海格力电器股份有限公司 | air conditioner defrosting control method and air conditioner controller |
| CN110631183B (en) * | 2018-06-25 | 2022-04-19 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631198B (en) * | 2018-06-25 | 2021-06-01 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631195A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631184A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110762719A (en) * | 2018-07-28 | 2020-02-07 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110762718A (en) * | 2018-07-28 | 2020-02-07 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110762720A (en) * | 2018-07-28 | 2020-02-07 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN109323371A (en) * | 2018-10-16 | 2019-02-12 | 奥克斯空调股份有限公司 | Control method and air regulator under a kind of air regulator heating mode |
| CN111189173B (en) * | 2018-11-14 | 2021-09-21 | 重庆海尔空调器有限公司 | Air conditioner and anti-freezing control method thereof |
| CN112050369B (en) * | 2019-06-07 | 2022-11-18 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN112050373A (en) * | 2019-06-07 | 2020-12-08 | 青岛海尔空调器有限总公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN112050367B (en) * | 2019-06-07 | 2022-07-19 | 重庆海尔空调器有限公司 | Control method and control device for defrosting of air conditioner and air conditioner |
| CN110469996A (en) * | 2019-07-28 | 2019-11-19 | 青岛海尔空调器有限总公司 | For the control method of air-conditioner defrosting, device and air-conditioning |
| CN110469993B (en) * | 2019-07-28 | 2022-07-05 | 武汉海尔电器股份有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110470000B (en) * | 2019-07-28 | 2022-04-15 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110469994A (en) * | 2019-07-28 | 2019-11-19 | 青岛海尔空调器有限总公司 | For the control method of air-conditioner defrosting, device and air-conditioning |
| CN110469998B (en) * | 2019-07-28 | 2022-04-19 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110469991B (en) * | 2019-07-28 | 2022-04-19 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110469992A (en) * | 2019-07-28 | 2019-11-19 | 青岛海尔空调器有限总公司 | For the control method of air-conditioner defrosting, device and air-conditioning |
| CN110469990A (en) * | 2019-07-28 | 2019-11-19 | 青岛海尔空调器有限总公司 | For the control method of air-conditioner defrosting, device and air-conditioning |
| CN110469989A (en) * | 2019-07-28 | 2019-11-19 | 青岛海尔空调器有限总公司 | For the control method of air-conditioner defrosting, device and air-conditioning |
| CN110469995A (en) * | 2019-07-28 | 2019-11-19 | 青岛海尔空调器有限总公司 | For the control method of air-conditioner defrosting, device and air-conditioning |
| CN110469999B (en) * | 2019-07-28 | 2022-07-05 | 重庆海尔空调器有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110469997B (en) * | 2019-07-28 | 2022-07-05 | 重庆海尔空调器有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110470016A (en) * | 2019-08-03 | 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 |
| CN112413818A (en) * | 2019-08-23 | 2021-02-26 | Tcl空调器(中山)有限公司 | Control method of air conditioner, air conditioner and storage medium |
| CN110594959B (en) * | 2019-09-18 | 2021-04-16 | 宁波奥克斯电气股份有限公司 | Air conditioner control method |
| CN112781289B (en) * | 2019-11-07 | 2023-07-25 | 广东芬尼克兹节能设备有限公司 | Defrosting control method, device and equipment for low-temperature heat pump and storage medium |
| CN111189268B (en) * | 2020-01-14 | 2021-07-06 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
| CN111397094A (en) * | 2020-03-27 | 2020-07-10 | 广东美的制冷设备有限公司 | Cleaning method for indoor heat exchanger of air conditioner, air conditioner and computer storage medium |
| KR20210132420A (en) | 2020-04-27 | 2021-11-04 | 엘지전자 주식회사 | Air-conditioner system and method for operating the same |
| CN111780348B (en) * | 2020-06-23 | 2022-02-01 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting method, defrosting control device and air conditioner |
| CN112283880A (en) * | 2020-09-17 | 2021-01-29 | 珠海格力电器股份有限公司 | Control system and control method for preventing air conditioner from freezing |
| CN113091215B (en) * | 2021-04-08 | 2022-07-19 | 青岛海尔空调器有限总公司 | Heating control method of air conditioner |
| CN114909777A (en) * | 2022-05-31 | 2022-08-16 | 北京小米移动软件有限公司 | Defrosting control method and device for air conditioner, terminal and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467462A (en) * | 2002-07-03 | 2004-01-14 | Lg电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| JP2011174639A (en) * | 2010-02-24 | 2011-09-08 | Hitachi Appliances Inc | Air conditioner |
| JP2012057867A (en) * | 2010-09-09 | 2012-03-22 | Panasonic Corp | Air conditioner |
| CN104456859A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力电器股份有限公司 | Air conditioner and defrosting control method and device thereof |
| CN104567076A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Air conditioner circulating device and control method thereof |
| CN104729006A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | air conditioner defrosting control method and device |
-
2015
- 2015-11-03 CN CN201510744247.9A patent/CN105222285B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467462A (en) * | 2002-07-03 | 2004-01-14 | Lg电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| JP2011174639A (en) * | 2010-02-24 | 2011-09-08 | Hitachi Appliances Inc | Air conditioner |
| JP2012057867A (en) * | 2010-09-09 | 2012-03-22 | Panasonic Corp | Air conditioner |
| CN104456859A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力电器股份有限公司 | Air conditioner and defrosting control method and device thereof |
| CN104567076A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Air conditioner circulating device and control method thereof |
| CN104729006A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | air conditioner defrosting control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105222285A (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105222285B (en) | Control system and control method for heating and frosting of air conditioner | |
| CN111795466B (en) | Air conditioner heating and air-releasing control method and device, air conditioner and computer readable storage medium | |
| CN104296306B (en) | The control method and device of air conditioner | |
| CN105352109B (en) | VAV box temperature control system and method based on weather compensation | |
| CN110671777B (en) | Control method and device of air conditioner and air conditioner | |
| CN107143967A (en) | One drags the control system of many photovoltaic cold storage of ice making air-conditionings | |
| CN106016628A (en) | Defrosting control method and device for air conditioner | |
| CN103851743A (en) | Constant-temperature dehumidification control method and system for air conditioner | |
| CN103047740A (en) | Method for reducing water flow of air conditioning system and dynamic temperature difference flow regulating valve | |
| CN105157170A (en) | Method for controlling variable frequency air conditioner | |
| CN105157169A (en) | Air conditioner, air conditioner control method and air conditioner control device | |
| CN108105942A (en) | Air conditioner and its Defrost method | |
| CN107166508B (en) | Heat pump type floor heating machine control method and heat pump type floor heating machine | |
| CN110307597A (en) | Air conditioner indoor unit with partitioned control function, control method and air conditioning unit | |
| CN112113380B (en) | Refrigerating system and control method thereof | |
| CN110186145A (en) | A kind of modified control method of the high drop of multi-connected machine, device and air conditioner | |
| CN107575998A (en) | The defrosting control method of air-conditioning and its outdoor unit | |
| CN105042796A (en) | Air conditioner control method | |
| CN105135612A (en) | Variable frequency air conditioner control method | |
| CN105042799A (en) | Air conditioner control method and device and air conditioner | |
| CN107024046A (en) | A kind of air-conditioner control method and air conditioner | |
| CN106247560A (en) | Air conditioner control method and device with fresh air system and air conditioner | |
| CN106352615A (en) | Air conditioner and refrigerant cooling control method for same | |
| CN113606693A (en) | Data center refrigerating system and air-water coupling energy-saving control method thereof | |
| CN103471205A (en) | Method for regulating indoor temperature and dual-temperature control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |