CN109405381A - A kind of defrosting method compared based on the time - Google Patents
A kind of defrosting method compared based on the time Download PDFInfo
- Publication number
- CN109405381A CN109405381A CN201811096376.1A CN201811096376A CN109405381A CN 109405381 A CN109405381 A CN 109405381A CN 201811096376 A CN201811096376 A CN 201811096376A CN 109405381 A CN109405381 A CN 109405381A
- Authority
- CN
- China
- Prior art keywords
- time
- humidity
- defrost
- value
- indicate
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/01—Timing
Abstract
The invention discloses a kind of defrosting methods compared based on the time, which is characterized in that its process includes: (1) heat pump system starting operation heating mode, by initial operating time Tis(the defrost time at this time is Tws), start defrost program；(2) compressor starts operation defrost pattern and timing are Tw1；(3) evaporator surface humidity is detected, judges whether defrost is complete；(4) by T at this timew1With TwsIncoming control circuit compares, if Tw1< Tws, then the defrost interval time T before may determine thatisSetting value it is less than normal, need to suitably be tuned up according to certain adjusting relationship, if Tw1> Tws, then the defrost interval time T before may determine thatisSetting value it is bigger than normal, need to suitably be turned down according to certain adjusting relationship；(5) according to the adjusted result of step (4), it may be determined that the time T of system operation heating mode next timei2.The present invention is compared by the time to be compared in conjunction with humidity, the accurate judgement defrost time.
Description
Technical field
The present invention relates to air source heat pump fields, and in particular to a kind of defrosting method compared based on the time.
Background technique
In the case where energy-saving and environment-friendly overall background is advocated in the whole world, heat pump becomes the new energy technology that people are concerned.Heat pump from
Low grade heat energy is obtained in the empty gas and water or soil of nature, is done work by electric power, then can be utilized to people's offer again
High-grade thermal energy realizes the thermal energy of cryogenic object passing to high temp objects.Air source heat pump is exactly using air as low level
Heat is flowed to the energy saver of high-order heat source by heat source, is chiefly used in air-conditioning, water heater etc..
When winter, outdoor temperature was lower, the heating operation time is long, and heat exchange temperature is lower than the dew-point temperature of surrounding air
When, the water-vapo(u)r saturation in air, extra steam will fin surface on heat exchangers condense into dew, work as surrounding air
Temperature is lower than 0 DEG C, and the dew of condensation just will form Bao Shuan, and the heating effect of machine is influenced when frosting is serious, energy consumption is caused to increase.
In order to enable the machine to run well, must just defrost processing be carried out to heat pump.
Traditional heat pump defrosting control technology generallys use following two scheme: 1, evaporator coil temperature is detected, when this
When temperature is less than setting value, and compressor stream time reaches preset value, starts defrost, detection plate tube temperature when defrost
Degree terminates defrost after coil temperature is greater than final temperature.2, the difference for detecting evaporator fin temperature and environment temperature, works as temperature
Difference is more than setting value, and compressor stream time reaches preset value, starts defrost, when coil temperature is greater than final temperature
After terminate defrost.
For example, the patent of invention that Chinese application publication number is CN103307804B discloses a kind of heat pump defrosting system, wrap
Include compressor, four-way valve, gas-liquid separator, outdoor heat exchanger, heating power expansion valve, indoor heat exchanger and two three-way electromagnetic valves, each portion
Part carries out following connection by pipeline: the compressor is connected with the port of the four-way valve, and the port of the four-way valve is simultaneously
Be connected with one end of the outdoor heat exchanger and two three-way electromagnetic valve, the other end of two three-way electromagnetic valve simultaneously with the room
External heat exchanger is connected with indoor heat exchanger, the both ends of the heating power expansion valve correspondingly with the outdoor heat exchanger and interior
Heat exchanger is connected, and the outdoor heat exchanger is connected with the port of the four-way valve, the port of the four-way valve and the gas-liquid point
One end from device is connected, and the other end of the gas-liquid separator is connected with the compressor.
But above-mentioned heat pump defrosting system has the following deficiencies:
By such environmental effects, heat pump system defrost only is controlled with preset time or stops defrost often to machine generation
Unfavorable effect when heat exchanger surface frost layer is very thick, has seriously affected air quantity and heat exchange such as in the very big environment of air humidity content
Effect, when urgent need wants defrost, but compressor operating time does not arrive setting time, and unit is still transported under lower evaporating temperature
Row, not only affects unit heating effect and energy consumption is very big；For another example in the case where low temperature environment air humidity content is smaller,
Even if heat exchanger surface frost-free, when the compressor is operating between to the defrost period is also had to enter into, machine is easy excessive wear
And increase energy consumption.
Summary of the invention
The purpose of the present invention is to provide a kind of defrosting methods compared based on the time, to solve to mention in above-mentioned background technique
Out there is frost not change or the problem of frostless mistakeization.
To achieve the above object, the present invention provides the following technical solutions, a kind of defrosting method compared based on the time, mistake
Journey includes:
(1) heat pump system starting operation heating mode, by initial operating time Tis(the defrost time at this time is Tws),
Start defrost program；
(2) compressor starts operation defrost pattern and timing are Tw1；
(3) evaporator surface humidity is detected, whether complete judges defrost, and record T when complete defrostw；
(4) by T at this timew1With TwsIncoming control circuit compares, if Tw1< Tws, then before may determine that
Defrost interval time TisSetting value it is less than normal, need suitably to tune up according to certain adjusting relationship, if Tw1> Tws, then
Defrost interval time T before may determine thatisSetting value it is bigger than normal, need suitably to turn down according to certain adjusting relationship；
(5) according to the adjusted result of step (4), the time T of system operation heating mode next time can be determinedi2。
The present invention by the time compare in conjunction with humidity compare, the accurate judgement defrost time and next time heating mode operation
Time.
Further, the initial operating time Tis=45min, defrost time Tws=4min, be according to laboratory into
The relatively more comprehensive data that a large amount of data test of row obtains.
Further, work as Tw1When < 4min, then the defrost interval time T before may determine thatisSetting value it is less than normal,
It needs suitably to tune up according to certain adjusting relationship, if Tw1> 4min, then the defrost interval time before may determine that
TisSetting value it is bigger than normal, need suitably to turn down according to certain adjusting relationship.
Further, the heating mode running time TiWith defrost time TwAdjusting relationship it is as follows:
Tadj=(Twn-1-Twn)/Tws*Tis (1)
Tin=Tin-1+Tadj (2)
In formula, TadjIndicate the running time TiAdjusted value, TwnIndicate the defrost time of n-th, Twn-1Indicate n-th-
1 defrost time, TwsIndicate initial defrost time, TinIndicate the heating mode runing time of n-th, Tin-1Indicate the
N-1 heating mode runing time.
Further, the evaporator surface is equipped with humidity sensor, is monitored, is being spaced to evaporator surface temperature
The time point of 0.1s carries out humidity data acquisition, and the acquisition data of three time points are one group, and the respectively first acquisition humidity, second adopts
Collect humidity and third acquires humidity, and be transmitted to control circuit and carry out calculation process, the present embodiment acquires continuous three time points
Humidity data be compared, the control circuit realizes adjustment by the detection of the humidity information to three time points, described
Control circuit determines the first fiducial value P of the first humidity sampled value, the second humidity sampled value according to following mean operation formula21:
In formula, P21Indicate the first fiducial value of the first humidity sampled value, the second humidity sampled value, u1Indicate that the first humidity is adopted
Sample value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral operation.
Wherein I indicates any integral operation based on quadratic function, and above-mentioned formula is the ratio information for obtaining integral, following
Two formula are identical, are such as based on function y=ax2, it is in (a, b) in x value, a <b is any number.
The rudimentary algorithm of above-mentioned mean operation are as follows: by continuously acquiring the humidity information of each time point at equal intervals, and to several
Continuous humidity data carries out integral operation and mean square deviation operation, then takes ratio, obtains the average value to compare.
The control circuit determines that the first humidity sampled value, third humidity sampled value second compare according to the following equation
Value P31:
In formula, P31Indicate the second fiducial value of the first humidity sampled value, third humidity sampled value, u1Indicate that the first humidity is adopted
Sample value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral operation.
The control circuit determines that the second humidity sampled value, the third of third humidity sampled value compare according to the following equation
Value P23:
In formula, P23Indicate the third fiducial value of the second humidity sampled value, third humidity sampled value value, u1Indicate the first humidity
Sampled value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral fortune
It calculates.
The P obtained by aforesaid way21、P31、P23, the difference comparsion of three fiducial values is obtained, determines whether to be more than storage
In the threshold value P of control circuit, if difference is more than threshold value P, accelerate defrost process, to improve defrost efficiency；If difference is lower than threshold value
P, and trend is gradually slow, then illustrates that defrost closes to an end, and slows down defrost progress, until difference held stationary, terminates defrost, rises
To the effect of protection machine.
Compared with the prior art, the present invention has the following advantages:
1, the problem of present invention has solved frost and do not changed, frostless mistakeization avoids causing to influence since frost accumulated is blocked up to heat, mention
The high working efficiency of heat pump, while defrost has an adverse effect to machine when avoiding frostless, extends the use of heat pump system
Service life.
2, it realizes automatic adjustment defrost speed, accelerates defrost process, reduce energy consumption.
Specific embodiment
The preferred embodiment of invention is described below.It will be apparent to a skilled person that these embodiments are only
It is only used for explaining the technical principle of invention, not in the protection scope of limitation invention.
It should be noted that in the description of invention, the instructions such as term " on ", "lower", "left", "right", "inner", "outside"
Direction or positional relationship are intended merely to facilitate description, rather than indication or suggestion described device or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as the limitation to invention.
The defrosting method that one of embodiment of the present invention is compared based on the time, process are as follows:
(1) heat pump system starting operation heating mode, by initial operating time Tis(the defrost time at this time is Tws),
Start defrost program；
(2) compressor starts operation defrost pattern and timing are Tw1；
(3) evaporator surface humidity is detected, whether complete judges defrost, and record T when complete defrostw；
(4) by T at this timew1With TwsIncoming control circuit compares, if Tw1< Tws, then before may determine that
Defrost interval time TisSetting value it is less than normal, need suitably to tune up according to certain adjusting relationship, if Tw1> Tws, then
Defrost interval time T before may determine thatisSetting value it is bigger than normal, need suitably to turn down according to certain adjusting relationship；
(5) according to the adjusted result of step (4), the time T of system operation heating mode next time can be determinedi2。
The embodiment of the present invention is compared by the time to be compared in conjunction with humidity, accurate judgement defrost time and heated mould next time
Formula runing time.
To check whether complete defrost, the present embodiment is also by being monitored evaporator surface humidity, in interval 0.1s
Time point carry out humidity data acquisition, the acquisition data of three time points are one group, the respectively first acquisition humidity, and the second acquisition is wet
Degree and third acquire humidity, and are transmitted to control circuit and carry out calculation process, and the present embodiment acquires continuous three time points wet
For degree according to being compared, the control circuit realizes adjustment, the control by the detection of the humidity information to three time points
Circuit determines the first fiducial value P of the first humidity sampled value, the second humidity sampled value according to following mean operation formula21:
In formula, P21Indicate the first fiducial value of the first humidity sampled value, the second humidity sampled value, u1Indicate that the first humidity is adopted
Sample value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral operation.
Wherein I indicates any integral operation based on quadratic function, and above-mentioned formula is the ratio information for obtaining integral, following
Two formula are identical, are such as based on function y=ax2, it is in (a, b) in x value, a <b is any number.
The rudimentary algorithm of above-mentioned mean operation are as follows: by continuously acquiring the humidity information of each time point at equal intervals, and to several
Continuous humidity data carries out integral operation and mean square deviation operation, then takes ratio, obtains the average value to compare.
The control circuit determines that the first humidity sampled value, third humidity sampled value second compare according to the following equation
Value P31:
In formula, P31Indicate the second fiducial value of the first humidity sampled value, third humidity sampled value, u1Indicate that the first humidity is adopted
Sample value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral operation.
The control circuit determines that the second humidity sampled value, the third of third humidity sampled value compare according to the following equation
Value P23:
In formula, P23Indicate the third fiducial value of the second humidity sampled value, third humidity sampled value value, u1Indicate the first humidity
Sampled value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral fortune
It calculates.
The P obtained by aforesaid way21、P31、P23, the difference comparsion of three fiducial values is obtained, determines whether to be more than storage
In the threshold value P of control circuit, if difference is more than threshold value P, accelerate defrost process, to improve defrost efficiency；If difference is lower than threshold value
P, and trend is gradually slow, then illustrates that defrost closes to an end, and slows down defrost progress, until difference held stationary is horizontal, endization
Frost plays the role of protecting machine.
In the embodiment of the present invention, the initial operating time Tis=45min, defrost time Tws=4min is according in reality
It tests room and carries out one that a large amount of data test obtains relatively more comprehensive data.
Work as Tw1When < 4min, then the defrost interval time T before may determine thatisSetting value it is less than normal, need according to one
Fixed adjusting relationship suitably tunes up, if Tw1> 4min, then the defrost interval time T before may determine thatisSetting value
It is bigger than normal, it needs suitably to turn down according to certain adjusting relationship.
Heating mode running time T described in the embodiment of the present inventioniWith defrost time TwAdjusting relationship it is as follows:
Tadj=(Twn-1-Twn)/Tws*Tis (1)
Tin=Tin-1+Tadj (2)
In formula, TadjIndicate the running time TiAdjusted value, TwnIndicate the defrost time of n-th, Twn-1Indicate n-th-
1 defrost time, TwsIndicate initial defrost time, TinIndicate the heating mode runing time of n-th, Tin-1Indicate the
N-1 heating mode runing time.
It is to be explained in detail to the preferred embodiment for the present invention, but the present invention is not limited to the above embodiments above,
Within the knowledge of a person skilled in the art, it can also make without departing from the purpose of the present invention each
Kind variation.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (5)
1. a kind of defrosting method compared based on the time, which is characterized in that its process includes:
(1) heat pump system starting operation heating mode, by initial operating time Tis(the defrost time at this time is Tws), startingization
White program；(2) compressor starts operation defrost pattern and timing are Tw1；(3) evaporator surface humidity is detected, whether judges defrost
Completely；(4) by T at this timew1With TwsIncoming control circuit compares, if Tw1< Tws, then the change before may determine that
White interval time TisSetting value it is less than normal, need to suitably be tuned up according to certain adjusting relationship, if Tw1> Tws, then can sentence
The defrost interval time T to break beforeisSetting value it is bigger than normal, need to suitably be turned down according to certain adjusting relationship；(5) according to step
(4) adjusted result, it may be determined that the time T of system operation heating mode next timei2.The present invention is compared by the time in conjunction with wet
Degree comparison, accurate judgement defrost time.
2. a kind of defrosting method compared based on the time according to claim 1, which is characterized in that when the initial launch
Between Tis=45min, defrost time Tws=4min is to carry out the comparison that a large amount of data test obtains according in laboratory
Comprehensive data.
3. a kind of defrosting method compared based on the time according to claim 1, which is characterized in that work as Tw1When < 4min,
Defrost interval time T before so may determine thatisSetting value it is less than normal, need suitably to tune up according to certain adjusting relationship,
If Tw1> 4min, then the defrost interval time T before may determine thatisSetting value it is bigger than normal, need according to certain tune
Section relationship is suitably turned down.
4. a kind of defrosting method compared based on the time according to claim 1, which is characterized in that the evaporator surface
Equipped with humidity sensor, evaporator surface temperature is monitored, the time point progress humidity data acquisition of 0.1s at interval, three
The acquisition data of time point are one group, and the respectively first acquisition humidity, the second acquisition humidity and third acquire humidity, and are transmitted to control
Circuit processed carries out calculation process, and the humidity data that continuous three time points acquire is compared the present embodiment, the control circuit
Adjustment is realized by the detection of the humidity information to three time points, the control circuit determines according to following mean operation formula
First fiducial value P of the first humidity sampled value, the second humidity sampled value21:
In formula, P21Indicate the first fiducial value of the first humidity sampled value, the second humidity sampled value, u1Indicate that the first humidity samples
Value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral operation；
Wherein I indicates any integral operation based on quadratic function, and above-mentioned formula is the ratio information for obtaining integral, and following two is public
Formula is identical, is such as based on function y=ax2, it is in (a, b) in x value, a <b is any number；
The rudimentary algorithm of above-mentioned mean operation are as follows: by continuously acquiring the humidity information of each time point at equal intervals, and to several continuous
Humidity data carries out integral operation and mean square deviation operation, then takes ratio, obtains the average value to compare.
The control circuit determines the second fiducial value of the first humidity sampled value, third humidity sampled value according to the following equation
P31:
In formula, P31Indicate the second fiducial value of the first humidity sampled value, third humidity sampled value, u1Indicate that the first humidity samples
Value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral operation；
The control circuit determines the third fiducial value of the second humidity sampled value, third humidity sampled value according to the following equation
P23:
In formula, P23Indicate the third fiducial value of the second humidity sampled value, third humidity sampled value value, u1Indicate that the first humidity samples
Value, u2Indicate the second humidity sampled value；u3Indicate third humidity sampled value；T indicates mean square deviation operation, and I indicates integral operation；
The P obtained by aforesaid way21、P31、P23, the difference comparsion of three fiducial values is obtained, determines whether to be more than to be stored in control
The threshold value P of circuit processed accelerates defrost process, if difference is more than threshold value P to improve defrost efficiency；If difference is lower than threshold value P, and
Trend is gradually slow, then illustrates that defrost closes to an end, and slows down defrost progress, until difference held stationary, terminates defrost, play guarantor
Protect the effect of machine.
5. a kind of defrosting method compared based on the time according to claim 1, which is characterized in that the heating mode fortune
Row time TiWith defrost time TwAdjusting relationship it is as follows:
Tadj=(Twn-1-Twn)/Tws*Tis (1)
Tin=Tin-1+Tadj (2)
In formula, TadjIndicate the running time TiAdjusted value, TwnIndicate the defrost time of n-th, Twn-1It indicates (n-1)th time
Defrost time, TwsIndicate initial defrost time, TinIndicate the heating mode runing time of n-th, Tin-1It indicates (n-1)th time
Heating mode runing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096376.1A CN109405381A (en) | 2018-09-19 | 2018-09-19 | A kind of defrosting method compared based on the time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096376.1A CN109405381A (en) | 2018-09-19 | 2018-09-19 | A kind of defrosting method compared based on the time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109405381A true CN109405381A (en) | 2019-03-01 |
Family
ID=65464976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811096376.1A Pending CN109405381A (en) | 2018-09-19 | 2018-09-19 | A kind of defrosting method compared based on the time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109405381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279047A (en) * | 2022-01-06 | 2022-04-05 | 珠海格力电器股份有限公司 | Defrosting control method and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430154A (en) * | 2008-11-11 | 2009-05-13 | 深圳市协诚机电设备工程有限公司 | Inverse defrosting method for air supply heat pump |
| CN104236004A (en) * | 2013-06-19 | 2014-12-24 | 广东美的制冷设备有限公司 | Defrosting control method and device for heat pump system |
| CN107687728A (en) * | 2017-09-07 | 2018-02-13 | 科希曼电器有限公司 | A kind of control method for the air energy heat pump defrost for judging condensation point |
| CN107726712A (en) * | 2016-08-12 | 2018-02-23 | 博西华电器（江苏）有限公司 | Controlling method for refrigerator and the refrigerator with the control method |
| CN108515519A (en) * | 2018-04-13 | 2018-09-11 | 珞石（山东）智能科技有限公司 | A kind of polishing path self-adapting correction method based on force snesor |
-
2018
- 2018-09-19 CN CN201811096376.1A patent/CN109405381A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430154A (en) * | 2008-11-11 | 2009-05-13 | 深圳市协诚机电设备工程有限公司 | Inverse defrosting method for air supply heat pump |
| CN104236004A (en) * | 2013-06-19 | 2014-12-24 | 广东美的制冷设备有限公司 | Defrosting control method and device for heat pump system |
| CN107726712A (en) * | 2016-08-12 | 2018-02-23 | 博西华电器（江苏）有限公司 | Controlling method for refrigerator and the refrigerator with the control method |
| CN107687728A (en) * | 2017-09-07 | 2018-02-13 | 科希曼电器有限公司 | A kind of control method for the air energy heat pump defrost for judging condensation point |
| CN108515519A (en) * | 2018-04-13 | 2018-09-11 | 珞石（山东）智能科技有限公司 | A kind of polishing path self-adapting correction method based on force snesor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279047A (en) * | 2022-01-06 | 2022-04-05 | 珠海格力电器股份有限公司 | Defrosting control method and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101451779B (en) | Defrosting control method for heat pump air conditioner | |
| CN104456859B (en) | Air conditioner and its defrosting control method and device | |
| Zhu et al. | Developing a new frosting map to guide defrosting control for air-source heat pump units | |
| Wang et al. | Characteristics of an air source heat pump with novel photoelectric sensors during periodic frost–defrost cycles | |
| CN109539622A (en) | A kind of net for air-source heat pump units and its defrosting control method | |
| Wang et al. | Field test investigation of the characteristics for the air source heat pump under two typical mal-defrost phenomena | |
| Wang et al. | Performances of air source heat pump system for a kind of mal-defrost phenomenon appearing in moderate climate conditions | |
| CN107543287B (en) | Air conditioner and control method thereof | |
| CN106016628B (en) | The method and device of air conditioner defrosting control | |
| CN103557651B (en) | A kind of air-cooling heat pump air conditioner intelligent defrosting method | |
| CN106403422B (en) | A kind of polycyclic pipeline heat exchanger defrosting starting point determination method of air source heat pump and system | |
| CN102519186A (en) | Defrosting method of air conditioner air-cooled heat pump unit and air conditioner air-cooled heat pump unit | |
| CN106524388A (en) | Defrosting control method for heat pump unit and air conditioner heat pump unit adopting defrosting control method | |
| CN107246701A (en) | A kind of air conditioner chamber's external heat exchanger defrosting or snow removing control method | |
| CN106152641B (en) | Air-conditioning refrigerator accurately defrosts intelligent control method and system | |
| CN105318492A (en) | Defrosting control method and device for air conditioner | |
| CN106091251A (en) | A kind of dirty stifled determination methods for heat exchanger, device and air-conditioning | |
| CN113091214B (en) | Air conditioner and defrosting control method thereof | |
| CN209399601U (en) | A kind of net for air-source heat pump units | |
| CN102635969A (en) | Air conditioner | |
| CN109210840A (en) | A kind of Air-Cooled Heat Pump Unit and its defrosting control method | |
| CN112032941A (en) | Control method of air conditioner | |
| CN210070218U (en) | Air heat exchange device, liquid bag type fin evaporator, air-source heat pump and water heater | |
| CN107101327A (en) | Air-conditioner defrosting control method and device and the air conditioner comprising the device | |
| CN109405381A (en) | A kind of defrosting method compared based on the time |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |