CN110207315A - A kind of air conditioner outdoor machine defrosting method, air-conditioning system - Google Patents
A kind of air conditioner outdoor machine defrosting method, air-conditioning system Download PDFInfo
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- CN110207315A CN110207315A CN201910490249.8A CN201910490249A CN110207315A CN 110207315 A CN110207315 A CN 110207315A CN 201910490249 A CN201910490249 A CN 201910490249A CN 110207315 A CN110207315 A CN 110207315A
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- melt
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- defrosting
- ice
- snow melt
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- 238000010257 thawing Methods 0.000 title claims abstract description 191
- 238000004378 air conditioning Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000005413 snowmelt Substances 0.000 claims abstract description 149
- 238000005057 refrigeration Methods 0.000 claims description 37
- 238000012544 monitoring process Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 3
- ZPUCINDJVBIVPJ-LJISPDSOSA-N ***e Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
- F24F11/86—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
- F24F11/70—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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A kind of air conditioner outdoor machine defrosting method of the present invention, air-conditioning system, Defrost method includes being provided with to force snow melt ice-melt defrosting mode, when outdoor weather, which is judged satisfaction, forces snow melt ice-melt defrosting mode trigger condition, the one-touch starting pressure snow melt ice-melt defrosting mode；Using the above scheme; by force above snow melt ice-melt defrosting control logic can make heavy snow, sleet and low temperature bad weather occur after; the case where normal defrost logic of unit cannot complete the normal defrost of unit after outdoor heat exchanger accumulated snow or formation ice sheet is resolved; it avoids and complains after sale, improve the competitiveness of product quality.
Description
Technical field
The present invention relates to air-conditioning technical field more particularly to a kind of air conditioner outdoor machine defrosting methods, air-conditioning system.
Background technique
Possess the air conditioner of outdoor unit when sleet blizzard weather occurs in bad weather of winter outer ring when subzero outside room
Easily there is being frozen by accumulated snow the case where all coverings in heat exchanger.The especially upward outdoor heat exchanger of outdoor heat exchanger
The aerial air conditioner (such as: the upward automobile air conditioning system of overhead) of exposure.Outdoor heat exchanger and air are by one layer of steel filter
Net separates, and sleet blizzard weather and outer ring occur in winter, outdoor heat exchanger can generate ice sheet when subzero or accumulated snow covers
Lid, in the case where unit is operated normally and heated, the normal defrost logic of unit oneself can not change outdoor heat exchanger surface layer
Accumulated snow or ice sheet (if unit booting be carried out defrost pattern again easily at low ambient temperatures occur accidentally defrost).In unit
Unit continues to run the heating capacity decline that will cause unit or even unit and will appear protection and stop in the incomplete situation of defrost
Machine.The normal defrost logic of unit is caused to be unable to satisfy unit defrost requirement from heavy snow occurred known to big data, due to defrost
Incomplete outdoor heat exchanger heat dissipation effect reduces, and outdoor heat exchanger can not be normally carried out heat exchange with outdoor, causes outdoor heat
Exchanger tube temperature is lower, and frosting is more, and unit heating capacity is caused to drastically reduce, and causes to complain problem after sale.
Summary of the invention
Present invention seek to address that defrosting effect is poor in inclement weather, heating capacity decline, controls for existing air-conditioner outdoor unit
Ineffective problem.
The main purpose of the present invention is to provide a kind of air conditioner outdoor machine defrosting method, it is provided with and forces snow melt ice-melt defrosting
Mode, when outdoor weather, which is judged satisfaction, forces snow melt ice-melt defrosting mode trigger condition, one-touch starting forces snow melt to be melted
Ice defrosting mode.
A kind of air conditioner outdoor machine defrosting method provided by the invention is provided with and forces snow melt ice-melt defrosting mode, works as room
When outer weather is judged satisfaction pressure snow melt ice-melt defrosting mode trigger condition, the one-touch starting pressure snow melt ice-melt defrosting
Mode.
Optionally, one-touch starting is remotely controlled using triggering manually or remote control mode such as far infrared.
Optionally, the judgement to the judgement of outdoor weather based on air-conditioning user.
Optionally, the control object for forcing snow melt ice-melt defrosting mode includes compressor, outdoor fan, indoor wind
Machine.
Optionally, the control of the compressor, outdoor fan, indoor fan after snow melt ice-melt defrosting mode is forced in starting
Sequentially are as follows: the first motor-driven work of control room exogenous wind, then indoor fan movement is controlled, finally control compressor action.
Optionally, under the pressure snow melt ice-melt defrosting state, the compressor frequency is in 65Hz-75Hz, outdoor wind
Organ closes, and indoor fan is deep low gear or closing.
Optionally, the pressure snow melt ice-melt defrosting mode further includes that snow melt ice-melt defrosting mode is forced to exit control.
Optionally, the pressure snow melt ice-melt defrosting mode exits control and is melted according to outdoor heat exchanger tube temperature T1, pressure
Snow ice-melt defrosting time t2, refrigeration system high pressure P1 determine to force whether snow melt ice-melt defrosting mode can terminate to exit.
Optionally, it judges automatically control air-conditioner set when program judgement meets following any preset condition when described and exits by force
Snow melt ice-melt defrosting mode processed:
1) as air-conditioner set outdoor heat exchanger tube temperature T1 > preset temperature Ts1, snow melt ice-melt defrosting time t2 is forced
≤ preset time t s1, when refrigeration system high pressure value P1 is less than or equal to preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt
Defrosting mode；
2) when air-conditioner set forces snow melt ice-melt defrosting time t2 > preset time t s1, outdoor heat exchanger tube temperature T1
≤ preset temperature Ts1, refrigeration system high pressure value P1≤preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
3) as air-conditioner set refrigeration system high pressure P1 > preset pressure Ps1, pressure snow melt ice-melt defrosting time t2≤pre-
If time ts1, outdoor heat exchanger tube temperature T1≤preset temperature Ts1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode.
Optionally, three Rule of judgment judge simultaneously, are in same priority, it is equal that air-conditioner set meets either condition
It exits and forces snow melt ice-melt defrosting mode)
Optionally, the snow melt ice-melt defrosting mode exits control and is additionally provided with one-touch off mode, the one-touch solution
Except using the triggering/releasing manually of same button with the one-touch starting.
Based on same inventive concept, the present invention also provides a kind of air-conditioning systems, are equipped with defrosting control device, feature
It is, the defrosting control device includes the one-touch button that snow melt ice-melt defrosting mode is forced in starting.
Optionally, the button has with air-conditioning compressor, outdoor fan, indoor fan is associated with control planning.
Optionally, defrosting control device includes monitoring modular and controller, and the controller is obtained according to the monitoring modular
The monitoring data obtained judge whether air-conditioning system meets exit criteria, and the monitoring modular includes: to outdoor heat exchanger tube temperature
The temperature sensor of monitoring, to force defrost time supervision timer, to the pressure sensing of refrigeration system high pressure pressure monitoring
Device.
Optionally, when the controller judges that the outdoor heat exchanger tube temperature T1, defrost time t2, high-pressure meet
When following either conditions, control air-conditioning system, which exits, forces snow melt ice-melt defrosting mode:
1) as outdoor heat exchanger tube temperature T1 > preset temperature Ts1, when forcing snow melt ice-melt defrosting time t2≤default
Between ts1, refrigeration system high pressure value P1 be less than or equal to preset pressure Ps1 when, air-conditioner set exit force snow melt ice-melt defrosting mode；
2) when air-conditioner set forces snow melt ice-melt defrosting time t2 > preset time t s1, outdoor heat exchanger tube temperature T1
≤ preset temperature Ts1, refrigeration system high pressure value P1≤preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
3) as air-conditioner set refrigeration system high pressure P1 > preset pressure Ps1, pressure snow melt ice-melt defrosting time t2≤pre-
If time ts1, outdoor heat exchanger tube temperature T1≤preset temperature Ts1, unit, which exits, forces snow melt ice-melt defrosting mode.
Optionally, it is that system automatically controls institute that the control air-conditioning system, which exits and forces the mode of snow melt ice-melt defrosting mode,
It states and snow melt ice-melt defrosting mode is forced to exit.
Optionally, it forces snow melt ice-melt defrosting mode to exit control and is additionally provided with one-touch off mode, the one-touch solution
Except the triggering/releasing manually of same button is used with the one-touch starting, when control system failure can not automatically control by force
When snow melt ice-melt defrosting mode processed exits, one-touch compulsory withdrawal can be used.
Using the above scheme, by forcing snow melt ice-melt defrosting control logic that can make heavy snow, sleet and low temperature above
Bad weather occur after, the outdoor heat exchanger accumulated snow or normal defrost logic of unit cannot complete unit after forming ice sheet
The case where normal defrost, is resolved, quick, efficient, safety.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of air-conditioning system refrigeration system embodiment schematic diagram that the embodiment of the present invention 1 provides.
Fig. 2 is a kind of air conditioner outdoor machine defrosting embodiment of the method control flow chart that the embodiment of the present invention 1 provides；
Appended drawing reference remarks:
Indoor heat exchanger 1, outdoor exchanger 9, compressor 4, throttling set 7, four-way reversing valve valve 2；Filter 12；Room
Inner blower 10, outdoor fan 9
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance or quantity or position.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Embodiment 1:
The present embodiment air-conditioning system is as shown in Figure 1, the air-conditioning system is heat pump type air corditioning system.Its refrigeration system includes room
Inside heat exchanger 1, outdoor heat exchanger 9, compressor 4, throttling set 7, four-way reversing valve valve 2.Fig. 1 embodiment throttling set is excellent
Choosing uses electric expansion valve, and a filter 12 is also being arranged between throttling set and condenser, when system heating operation,
Outdoor heat exchanger absorbs heat as evaporator from the external world, and indoor outer heat-exchanger is as condenser to indoor heat release.It is changed to improve
Thermal effect, indoor heat exchanger are configured with indoor fan 10, and outdoor heat exchanger is configured with outdoor fan 8.
Certainly, the present invention and specifically what kind of air-conditioning system is not minded, the present application point is not in refrigeration system
It is specific to improve.Most importantly cope with the pressure snow melt ice-melt defrosting mode of extreme weather.The present embodiment forces snow melt ice-melt
The starting of defrosting mode preferred manual automatically exits from control.
Therefore air-conditioning system of the present invention is equipped with defrosting control device, and the control device that defrosts includes controller 5, monitoring unit with
And the input unit of snow melt ice-melt defrosting mode is forced in one-touch starting, which preferably uses one-touch button；Specifically
Ground, the one-touch button may be disposed on a manual operator, which is communicated to connect by bluetooth or wifi and air-conditioning system, with
Convenient for users to manipulation.It is of course also possible to use infrared remote control mode.
Preferably, it is compressor, outdoor fan, interior that the present invention, which forces the operation control object of snow melt ice-melt defrosting mode,
Blower, therefore button is had with air-conditioning compressor, outdoor fan, indoor fan preferably and is associated with control planning.In the pass
Join under control planning, user can be started by one-touch button forces snow melt ice-melt defrosting mode, makes compressor, outdoor wind
Machine, indoor fan enter force snow melt ice-melt defrosting operational mode, make compressor with predeterminated frequency (preferably 65Hz-75Hz's
High-frequency) operation, outdoor fan closing, indoor fan preset gear operation (blower deep low gear or blower are closed).
It can be seen that the present invention is not necessarily to pay the cost of high transformation refrigeration system, just very good solution winter goes out
Existing sleet blizzard weather and outer ring outdoor heat exchanger when subzero can generate ice sheet or snow cover, and unit operates normally
The accumulated snow or ice sheet that the normal defrost logic of heating can not change outdoor heat exchanger surface layer are (if unit being carried out of booting
Easily there is accidentally defrost at low ambient temperatures again in white mode) the technical issues of.Air-conditioning user can be according to weather such as heavy snow, subzero
When the bad weathers unit outdoor heat exchanger such as sleet there is the covering of snow cover ice sheet, the common defrost mode of unit itself without
Method goes oneself manual operator to be utilized quickly to open this mode in the case where accumulated snow, ice sheet covering, has to air-conditioning user normal
Incomparable safety guarantee is patrolled in defrost.
And in order to more accurately hold the defrost process and defrosting effect of forcing snow melt ice-melt defrosting mode, when holding appropriate
Between exit force snow melt defrosting ice-melt mode after the normal heating operation of unit, promote the safe operation guarantee of air-conditioning system, this hair
Bright defrosting control device and control method, which are also set up, forces snow melt ice-melt defrosting mode to exit control, correspondingly, snow melt is forced to be melted
Whether ice defrosting mode, which meets to exit equipped with air-conditioning system, is forced the control of exiting of the preset condition of snow melt ice-melt defrosting mode to be sentenced
It is disconnected.
This exit control judge using outdoor heat exchanger tube temperature, the defrost time, refrigeration system high pressure lateral pressure as monitor
Object, once these parameters meet the default exit criteria for forcing snow melt ice-melt defrosting mode, control system controls air-conditioning system
Terminate that Defrost operation mode is forced to carry out normal heating operation, system, which automatically exits from, forces snow melt ice-melt defrosting mode to avoid sky
Adjusting system is constantly in passive defrosting, waste energy consumption.
Why this factor is selected, and allowing for heat exchanger tube temperature may determine that the degree of snow melt ice-melt defrosting reaches
How much, when heat exchanger tube temperature reaches certain value, illustrate that outdoor heat exchanger defrost has reached respective degrees, unit high pressure can
To judge the state of the unit in the case where unit forces snow melt ice-melt defrosting mode, whether unit is also suitable for carrying out forcing snow melt ice-melt
Defrosting mode；It can guarantee the safe condition of unit, and simple reflection defrost degree by unit high pressure；When the defrost of unit
Between can determine what effect unit defrost reaches, set the reasonable defrost time, unit safety can be made reliably to run to
Ideal defrost degree.With the monitoring parameters of these three parameter co- controlling unit the mode of secession, our creative discoveries can
Reach good defrosting effect, and can guarantee the safe and reliable of entire air-conditioning system, may cause defrost after lacking any parameter
Effect and system reliability all can not reach expected defrosting effect there are three parameter co- controlling and guarantee that unit is pacified
Full reliability service, prevents unit from damaging.
For the monitoring for realizing above-mentioned parameter, monitoring modular is additionally provided with the sensor for monitoring outdoor heat exchanger temperature,
Monitor the pressure sensor and the timer of defrost time of system high pressure side.Specific outdoor heat exchanger tube temperature monitoring point can
It can be with refrigeration system high pressure lateral pressure can use pressure biography to select the front end, middle part, rear end of outdoor heat exchanger to monitor
Sensor is detected, and outdoor heat exchanger temperature sensing package detects outdoor heat exchanger tube temperature.
The preset condition for forcing snow melt ice-melt defrosting mode is exited when judging whether air-conditioner set meets using above-mentioned parameter
Preferably (as long as meeting one of condition, system just stops forcing snow melt ice-melt defrosting operational mode):
1), as air-conditioner set outdoor heat exchanger tube temperature T1 > preset temperature Ts1, snow melt ice-melt defrosting time t2 is forced
≤ preset time t s1, when refrigeration system high pressure value P1 is less than or equal to preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt
Defrosting mode；
2), when air-conditioner set forces snow melt ice-melt defrosting time t2 > preset time t s1, outdoor heat exchanger tube temperature T1
≤ preset temperature Ts1, refrigeration system high pressure value P1≤preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
3), as air-conditioner set refrigeration system high pressure P1 > preset pressure Ps1, pressure snow melt ice-melt defrosting time t2≤pre-
If time ts1, outdoor heat exchanger tube temperature T1≤preset temperature Ts1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode.
Preferably, if the judgement for meeting the preset condition for exiting pressure snow melt ice-melt defrosting mode is same priority,
Judgement is detected simultaneously.When meeting either condition, control system, which just automatically exits from, forces snow melt ice-melt defrosting mode.
Currently preferred is that the control of exiting of snow melt ice-melt defrosting operational mode is forced to use automatic control, is automatically controlled
It can guarantee that defrost is good, and can guarantee unit safety.Snow melt is forced to be melted when air conditioner user judges that outdoor weather judgement meets
Ice defrosting mode trigger condition can start the air conditioner outdoor machine defrosting side by carrying out one-touch manual triggering on manual operator
Method defrosts into the defrosting mode.It, can be by carrying out a key on manual operator when judgement, which meets, exits preset condition
Formula off mode, to exit defrosting mode.
Certainly, if worrying that control system failure can not release, one can also be further added by, above-mentioned pressure snow melt is melted
Ice defrosting operational mode exits control manually, is preferably provided a cue module at this time, reminds air-conditioning user ambient weather feelings
Whether the air-conditioning system under condition or outdoor heat exchanger frosting ice condition, and/or pressure snow melt ice-melt defrosting mode operation
Meet preset exit criteria and automatic system prompt selects hand-operated forced exit when exiting not yet.In this way, snow melt ice-melt
Defrosting mode exit control can also be equipped with one-touch release operation button, the one-touch release operation button can with it is one-touch
Start-up operation button is triggered manually, is released using same button.
Above-mentioned control program, we pass through outdoor heat exchanger tube temperature, high-voltage value, pressure snow melt ice-melt at creative discovery
Three key factors of defrosting time determine the exit criteria of unit simultaneously, can reach good defrosting effect and whole
A air-conditioning system it is safe and reliable, can effectively avoid and go out because the normal defrost of unit cannot reach good snow melt ice-melt defrosting effect
Existing heating effect is deteriorated.
Embodiment 2:
Based on above-mentioned same inventive concept, as shown in Fig. 2, the preferred embodiment of the present invention provides an air conditioner outdoor machine defrosting
Method, general thought are that snow melt ice-melt defrosting mode is forced in setting, force snow melt ice-melt defrosting when outdoor weather is judged satisfaction
When mode trigger condition, snow melt ice-melt defrosting mode is forced in starting, carries out air conditioner outdoor machine defrosting；When outdoor weather is judged not
When meeting pressure snow melt ice-melt defrosting preset condition, automatic control, which is exited, forces snow melt ice-melt defrosting mode.
Substantially control flow is as follows:
S1: unit booting, heating mode；
S2: user judges whether to need to enter to force snow melt ice-melt defrosting mode according to weather；
S3: it if being judged as YES, opens and forces snow melt ice-melt defrosting mode, if NO maintain the normal heating operation of unit；
S4: judge to force whether snow melt ice-melt defrosting mode meets following any preset condition, if met, exit pressure
Snow melt ice-melt defrosting mode, is converted to unit normal operation mode；If do not met, return time a upper judgment step continues to sentence
It is disconnected；
S5: unit shutdown.
For above-mentioned control flow optimize, force snow melt ice-melt defrosting mode operation control object be compressor,
Indoor fan, outdoor fan.Specifically, can it is first exogenous wind is motor-driven closes, be probably spaced 20s or so, then indoor fan movement with
Deep low gear operation is closed, then is controlled compressor and run with upper frequency, probable ranges 65Hz-75Hz.
It exits and forces snow melt ice-melt defrosting mode, the preferred judgement object of preset condition are as follows: heat exchange outside air-conditioner set room
Device tube temperature T1, air-conditioner set force snow melt ice-melt defrosting time t2, air-conditioner set refrigeration system high pressure P1.Preferably, meet with
Under any preset condition when, system exit force snow melt ice-melt defrosting mode:
(1) as air-conditioner set outdoor heat exchanger tube temperature T1 > preset temperature Ts1, snow melt ice-melt defrosting time t2 is forced
≤ preset time t s1, when refrigeration system high pressure value P1 is less than or equal to preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt
Defrosting mode；
(2) when air-conditioner set forces snow melt ice-melt defrosting time t2 > preset time t s1, outdoor heat exchanger tube temperature T1
≤ preset temperature Ts1, refrigeration system high pressure value P1≤preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
(3) as air-conditioner set refrigeration system high pressure P1 > preset pressure Ps1, pressure snow melt ice-melt defrosting time t2≤pre-
If time ts1, outdoor heat exchanger tube temperature T1≤preset temperature Ts1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode.
Preferably, the preset temperature Ts1 of air-conditioner set outdoor heat exchanger tube temperature is within the scope of 10 DEG C -18 DEG C, and preferably 15
℃；Force the preset time t s1 of snow melt ice-melt defrosting time within the scope of 600s-900s, preferably 700s value；Refrigeration system high pressure
The preset pressure Ps1 of value is in 4.0-4.4MPa, preferred value 4.2MPa.I.e. when monitoring control devices outdoor heat exchanger tube temperature T1,
When defrost time t2, high-pressure meet following either conditions, control system, which exits, forces snow melt ice-melt defrosting mode.
Such as when monitoring control devices outdoor heat exchanger tube temperature T1, defrost time t2, high-pressure meet following either conditions
When, control air-conditioning system, which will move out, forces snow melt ice-melt defrosting mode:
(1), when 15 DEG C of > of outdoor heat exchanger tube temperature T1, snow melt ice-melt defrosting time t2≤700s, refrigeration system are forced
When the high-voltage value P1 that unites is less than or equal to 4.2MPa, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
(2), when air-conditioner set forces snow melt ice-melt defrosting time t2 > 700s, outdoor heat exchanger tube temperature T1≤15
DEG C, refrigeration system high pressure value P1≤4.2MPa, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
(3), as air-conditioner set refrigeration system high pressure P1 > 4.2MPa, snow melt ice-melt defrosting time t2≤700s is forced
When, when outdoor heat exchanger tube temperature T1≤15 DEG C, unit, which exits, forces snow melt ice-melt defrosting mode.
Preferably, snow melt ice-melt defrosting mode trigger condition, the preferred air conditioner user of the present invention are forced for air-conditioner outdoor unit
Artificially judged according to actual environment, such as when ambient weather is in accumulated snow, ice sheet accumulates or air-conditioning system heating performance is bright
When aobvious decline, air conditioner user can force snow melt ice-melt defrosting mode to carry out defrost, the operation by one-touch starting
Design relatively simple, quick, practicability is preferable.In addition, the one-touch starting of the present invention can be using triggering manually, this is manually
Triggering can carry out fast operating in conjunction with the actual demand that air conditioner user is faced and the judgement of oneself.In this way, working as air conditioner user
Think that outdoor weather is judged satisfaction and forces snow melt ice-melt defrosting mode trigger condition according to the artificial judgement of itself, can pass through
One-touch manual triggering is carried out on manual operator and starts the air conditioner outdoor machine defrosting method, is removed into the defrosting mode
Frost.Thus, it is possible to realize existing air conditioner outdoor machine defrosting effect is more preferable, defrost process is safer technical effect, solve existing
Air conditioner normal defrost logic of unit after bad weather cannot melt the technology of accumulated snow or ice sheet covering outdoor heat exchanger
Problem.
Preferably, unit has a normal defrosting mode, when the molten white mode of the not manually opened pressure snow melt ice-melt of unit, unit
Can operate normally, while normal operation unit can automatic running oneself defrost pattern, this patent is when there is sleet, heavy snow etc.
After bad weather, unit outdoor heat exchanger will appear ice sheet, heavy snow covering, the normal defrost pattern of unit cannot change ice sheet,
When accumulated snow, manually opened mode makes unit remove ice sheet, accumulated snow.But for whether meet exit force snow melt ice-melt defrosting mould
It the judgement of formula and exits preferably using full-automatic the mode of secession, control is strong in time.Certainly, for avoid force snow melt ice-melt defrosting
Mode exits control and can not execute because control system breaks down, and can also be equipped with one-touch off mode, the one-touch releasing
Triggering/the releasing manually of same button is used with the one-touch starting, when control system failure can not automatically control pressure
When snow melt ice-melt defrosting mode exits, one-touch compulsory withdrawal can be used.
Using the above scheme, by forcing snow melt ice-melt defrosting control logic that can make heavy snow, sleet and low temperature above
Bad weather occur after, the outdoor heat exchanger accumulated snow or normal defrost logic of unit cannot complete unit after forming ice sheet
The case where normal defrost, is resolved, and can reach expected defrosting effect and guarantee unit safety reliability service, prevent
Unit damages.It should be noted that snow melt ice-melt defrosting mode is not to say that there must be three kinds of snow, ice, frost modes is total to
It deposits, as long as but environment meets the force start mode of any of which situation.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.The scope of the present invention
By appended claims and its equivalent limit.
Claims (19)
1. a kind of air conditioner outdoor machine defrosting method, which is characterized in that be provided with and force snow melt ice-melt defrosting mode, work as outdoor weather
When being judged satisfaction pressure snow melt ice-melt defrosting mode trigger condition, the one-touch starting pressure snow melt ice-melt defrosting mode.
2. air conditioner outdoor machine defrosting method according to claim 1, which is characterized in that the one-touch starting is using manual
Triggering or remote control mode.
3. air conditioner outdoor machine defrosting method according to claim 2, it is characterised in that: the judgement base to outdoor weather
In the judgement of air-conditioning user.
4. air conditioner outdoor machine defrosting method according to claim 1-3, which is characterized in that the pressure snow melt is melted
The control object of ice defrosting mode includes compressor, outdoor fan, indoor fan.
5. air conditioner outdoor machine defrosting method according to claim 4, which is characterized in that the compressor, outdoor fan, room
Control sequence of the inner blower after snow melt ice-melt defrosting mode is forced in starting are as follows: the first motor-driven work of control room exogenous wind, then in control room
Blower movement, finally controls compressor action.
6. air conditioner outdoor machine defrosting method according to claim 5, which is characterized in that in the pressure snow melt ice-melt defrosting
Under state, the compressor frequency is closed in 65Hz-75Hz, outdoor fan, and indoor fan is deep low gear or closing.
7. method according to claim 1-6, which is characterized in that the pressure snow melt ice-melt defrosting mode is also wrapped
It includes and snow melt ice-melt defrosting mode is forced to exit control.
8. air conditioner outdoor machine defrosting method according to claim 7, which is characterized in that the pressure snow melt ice-melt defrosting mould
Formula exits control and is determined by force according to outdoor heat exchanger tube temperature T1, pressure snow melt ice-melt defrosting time t2, refrigeration system high pressure P1
Whether snow melt ice-melt defrosting mode processed can terminate to exit.
9. air conditioner outdoor machine defrosting method according to claim 8, which is characterized in that judge automatically program judgement when described
Control air-conditioner set, which exits, when meeting following any preset condition forces snow melt ice-melt defrosting mode:
1) as air-conditioner set outdoor heat exchanger tube temperature T1 > preset temperature Ts1, pressure snow melt ice-melt defrosting time t2≤pre-
If time ts1, when refrigeration system high pressure value P1 is less than or equal to preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting
Mode；
2) when air-conditioner set forces snow melt ice-melt defrosting time t2 > preset time t s1, outdoor heat exchanger tube temperature T1≤pre-
If temperature Ts1, refrigeration system high pressure value P1≤preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
3) as air-conditioner set refrigeration system high pressure P1 > preset pressure Ps1, when forcing snow melt ice-melt defrosting time t2≤default
Between ts1, outdoor heat exchanger tube temperature T1≤preset temperature Ts1, air-conditioner set exit force snow melt ice-melt defrosting mode.
10. air conditioner outdoor machine defrosting method according to claim 9, which is characterized in that heat is handed over outside the air-conditioner set room
The preset temperature Ts1 of parallel operation tube temperature is within the scope of 10 DEG C -18 DEG C；The preset time t s1 of snow melt ice-melt defrosting time is forced to exist
Within the scope of 600s-900s；The preset pressure Ps1 of refrigeration system high pressure value is in 4.0MPa-4.4MPa.
11. air conditioner outdoor machine defrosting method according to claim 10, which is characterized in that when heat is handed over outside monitoring control devices room
When parallel operation tube temperature T1, defrost time t2, high-pressure meet following either conditions, control air-conditioning system, which will move out, forces snow melt to be melted
Ice defrosting mode:
1), when 15 DEG C of > of outdoor heat exchanger tube temperature T1, snow melt ice-melt defrosting time t2≤700s, refrigeration system high pressure are forced
When value P1 is less than or equal to 4.2MPa, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
2), when air-conditioner set forces snow melt ice-melt defrosting time t2 > 700s, outdoor heat exchanger tube temperature T1≤15 DEG C, refrigeration
System high pressure value P1≤4.2MPa, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
3) outdoor when forcing snow melt ice-melt defrosting time t2≤700s, as air-conditioner set refrigeration system high pressure P1 > 4.2MPa
When heat exchanger tube temperature T1≤15 DEG C, unit, which exits, forces snow melt ice-melt defrosting mode.
12. according to the described in any item air conditioner outdoor machine defrosting methods of claim 9-11, it is characterised in that: three judgements
Condition judges simultaneously, is in same priority, and air-conditioner set meets either condition and exits pressure snow melt ice-melt defrosting mode.
13. air conditioner outdoor machine defrosting method according to claim 12, it is characterised in that: the snow melt ice-melt defrosting mode
Control is exited to automatically control.
14. a kind of air-conditioning system is equipped with defrosting control device, which is characterized in that the defrosting control device includes that starting is strong
The one-touch button of snow melt ice-melt defrosting mode processed.
15. air-conditioning system according to claim 14, which is characterized in that the button and air-conditioning compressor, outdoor
Blower, indoor fan have association control planning.
16. air-conditioning system according to claim 15, which is characterized in that the defrosting control device include monitoring modular and
Controller, the controller judge whether air-conditioning system meets exit criteria according to the monitoring data that the monitoring modular obtains,
The monitoring modular includes: the temperature sensor to the monitoring of outdoor heat exchanger tube temperature, the timing to defrost time supervision is forced
Device, to the pressure sensor of refrigeration system high pressure pressure monitoring.
17. air-conditioning system according to claim 16, which is characterized in that when the controller judges the outdoor heat exchange
When device tube temperature T1, defrost time t2, high-pressure meet following either conditions, control air-conditioning system, which exits, forces snow melt ice-melt to be melted
White mode:
1) as outdoor heat exchanger tube temperature T1 > preset temperature Ts1, snow melt ice-melt defrosting time t2≤preset time is forced
When ts1, refrigeration system high pressure value P1 are less than or equal to preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
2) when air-conditioner set forces snow melt ice-melt defrosting time t2 > preset time t s1, outdoor heat exchanger tube temperature T1≤pre-
If temperature Ts1, refrigeration system high pressure value P1≤preset pressure Ps1, air-conditioner set, which exits, forces snow melt ice-melt defrosting mode；
3) as air-conditioner set refrigeration system high pressure P1 > preset pressure Ps1, when forcing snow melt ice-melt defrosting time t2≤default
Between ts1, outdoor heat exchanger tube temperature T1≤preset temperature Ts1, unit exit force snow melt ice-melt defrosting mode.
18. air-conditioning system according to claim 17, which is characterized in that the control air-conditioning system, which exits, forces snow melt to be melted
The mode of ice defrosting mode is that the system automatic control pressure snow melt ice-melt defrosting mode exits.
19. air-conditioning system according to claim 18, which is characterized in that the pressure snow melt ice-melt defrosting mode exits control
System is additionally provided with one-touch off mode, and the one-touch releasing and the one-touch starting use same button triggering/solution manually
It removes, it, can be using one-touch strong when control system failure can not automatically control, and snow melt ice-melt defrosting mode is forced to exit
System exits.
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Cited By (1)
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| CN114777337A (en) * | 2022-04-27 | 2022-07-22 | 广东万和新电气股份有限公司 | Gas water heater and control method thereof |
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