CN105180568B - A kind of defrosting control method of refrigerator - Google Patents
A kind of defrosting control method of refrigerator Download PDFInfo
- Publication number
- CN105180568B CN105180568B CN201510727010.XA CN201510727010A CN105180568B CN 105180568 B CN105180568 B CN 105180568B CN 201510727010 A CN201510727010 A CN 201510727010A CN 105180568 B CN105180568 B CN 105180568B
- Authority
- CN
- China
- Prior art keywords
- defrost
- refrigerator
- rotating speed
- defrosting
- frequency
- 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
- 238000010257 thawing Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 5
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Landscapes
- Defrosting Systems (AREA)
Abstract
The invention discloses a kind of defrosting control method of refrigerator, comprise the following steps：When refrigerator reaches defrost condition, the rotating speed of control frequency-changeable compressor switches to the second rotating speed by the first original rotating speed；After frequency-changeable compressor is with the second rotation speed operation t1 periods, control magnetic valve is opened；Magnetic valve was opened after the t2 periods, and control frequency-changeable compressor is shut down；The unlatching of control defrosting heater, closed electromagnetic valve, frequency-changeable compressor are recovered to the first original rotating speed by the second rotating speed；When reaching defrost exit criteria, control defrosting heater is closed, and defrost terminates.The present invention has advantages below compared with prior art：The defrosting control method that the present invention is provided, before defrosting heater is opened, it is evaporator defrost using the refrigerant heat without capillary-compensated, avoid the waste of energy, and because its defrost mode of heating is defrost in pipe, heating effect becomes apparent, and reduces the load of defrosting heater, reduces energy consumption during refrigerator defrost.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly to a kind of defrosting control method of refrigerator.
Background technology
Frostless wind cooling refrigerator on the market, when carrying out defrost, is to carry out defrost using defrosting heater mostly, refrigerator enters
Evaporator temperature during defrost is general all than relatively low, and defrosting heater needs a very long time to carry out heating to evaporator
Frost；And when refrigerator has just enter into defrost, be higher by without the refrigerant temperature of capillary-compensated than evaporator and there are about 50 degree or so,
This partial heat is wasted.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of defrosting control method of refrigerator.
The present invention is achieved by the following technical solutions：
A kind of defrosting control method of refrigerator, the refrigeration system of the refrigerator includes the change being connected in turn in refrigerating circuit
Frequency compressor, condenser, capillary and evaporator, the evaporator are provided with defrosting heater, the two ends of the capillary across
It is connected on defrost branch road, the defrost branch road and is provided with magnetic valve, the defrosting control method comprises the following steps：
Step S1, when refrigerator reaches defrost condition, control the rotating speed of frequency-changeable compressor to be switched by original the first rotating speed
To the second rotating speed, wherein the rotating speed of first rotating speed is refrigerator when normally freezing frequency-changeable compressor, second rotating speed is less than
First rotating speed；
Step S2, after frequency-changeable compressor is with second rotation speed operation t1 period, control magnetic valve is opened, and wherein t1 is sets
Definite value；
Step S3, magnetic valve were opened after the t2 periods, and control frequency-changeable compressor is shut down, and wherein t2 is setting value；
Step S4, the unlatching of control defrosting heater, closed electromagnetic valve, frequency-changeable compressor are recovered to original by the second rotating speed
First rotating speed；
Step S5, when reaching defrost exit criteria, control defrosting heater is closed, and defrost terminates.
The t1 is 3min, and the t2 is 3min.
The refrigeration system of the refrigerator also includes in defrosting sensor, the step S5, and the defrost exit criteria refers to：
The defrosting sensor reaches that temperature is exited in setting.
The refrigeration system also includes anti-condensation pipe, the anti-condensation pipe be arranged at the frequency-changeable compressor and condenser it
Between.
The refrigeration system also includes filter, and the filter is arranged between the condenser and capillary.
The refrigeration system also includes reservoir, and the reservoir is arranged between the evaporator and frequency-changeable compressor.
The present invention has advantages below compared with prior art：
1st, the defrosting control method of a kind of refrigerator that the present invention is provided, before defrosting heater is opened, using without
The refrigerant heat of capillary-compensated is evaporator defrost, it is to avoid the waste of energy, and because its defrost mode of heating is pipe
Interior defrost, heating effect becomes apparent, and reduces the load of defrosting heater, reduces energy consumption during refrigerator defrost.
2nd, it is evaporator defrost, defrost using the refrigerant heat without capillary-compensated in this defrosting control method
Mode is to use high temperature refrigerant Bottomhole pressure, heat is outer to managing in pipe, and defrost is more thorough, it is to avoid when managing outer defrost due to
The not thorough phenomenon of pipe surface defrost caused by time is not enough.
If the 3, magnetic valve directly switches during defrost, high-pressure refrigerant can be caused to be directly entered evaporator, had very to evaporator
Big impact, it is unfavorable to whole refrigeration system.The present invention controls frequency-changeable compressor to turn with relatively low before switching solenoid valve, first
The speed operation t1 periods, the impact to evaporator of high-pressure refrigerant is reduced, refrigeration system is protected.
4th, during magnetic valve opens the t2 periods, although still have temperature between the refrigerant and evaporator in evaporator
Difference, but because refrigerant is depressured not over capillary-compensated, be gradually reduced with frequency-changeable compressor outlet refrigerant pressure difference, temperature
Difference also reduces therewith, and evaporator temperature rise gradually slows down, and is now less than using the defrost efficiency of refrigerant defrost and is heated using defrost
The defrost efficiency of device, therefore defrosting heater is opened after magnetic valve opens the t2 periods, carry out defrost using defrosting heater.
5th, the power consumption of defrosting heater is about 2-3 times of frequency-changeable compressor power consumption, when frequency-changeable compressor low speed is run
Power can be lower, and electric energy is more saved using frequency-changeable compressor hot-gas bypass defrost.
Brief description of the drawings
Fig. 1 is the refrigerant system configurations schematic diagram of the refrigerator of the present invention.
Fig. 2 is the flow chart of the defrosting control method of the present invention.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementations
Example.
Referring to Fig. 1, the invention provides a kind of refrigerator, the refrigeration system of the refrigerator includes being connected in turn in refrigerating circuit
Frequency-changeable compressor 1, anti-condensation pipe 2, condenser 3, filter 4, capillary 6, evaporator 7 and reservoir 8, set on evaporator 7
There is defrosting heater 9, the two ends bridging of capillary 6 has is provided with magnetic valve 5 on defrost branch road, defrost branch road.
Referring to Fig. 2, present invention also offers the defrosting control method of the refrigerator, comprise the following steps：
Step S1, when refrigerator reaches defrost condition, control the rotating speed of frequency-changeable compressor 1 to be switched by original the first rotating speed
To the second rotating speed, wherein the rotating speed of the first rotating speed is refrigerator when normally freezing frequency-changeable compressor 1, the second rotating speed is less than first turn
Speed；
Step S2, after frequency-changeable compressor 1 is with second rotation speed operation t1 period, control magnetic valve 5 is opened, and wherein t1 is
Setting value；
Step S3, magnetic valve 5 were opened after the t2 periods, and control frequency-changeable compressor 1 is shut down, and wherein t2 is setting value；
Step S4, control defrosting heater 9 is opened, magnetic valve 5 is closed, frequency-changeable compressor 1 is recovered to original by the second rotating speed
The first rotating speed come；
Step S5, when reaching defrost exit criteria, control defrosting heater 9 close, defrost terminates.
Wherein, in step S5, defrost exit criteria refers to：Defrosting sensor reaches that temperature is exited in setting.
It the experiment proved that, on compartment volume 300L refrigerator, t1 and t2 are optimal using 3min, utilize this defrost
Method can will enter defrost when the temperature of evaporator 7 improve 10 DEG C or so, then the opening time of defrosting heater 9 relative to
The time of the defrost of defrosting heater 9 is only opened under square one to be reduced 1 to 2 minute, so as to reduce the negative of defrosting heater 9
Carry, reduce energy consumption during refrigerator defrost.
The defrosting control method for a kind of refrigerator that the present invention is provided, before defrosting heater 9 is opened, using without hair
The refrigerant heat that tubule 6 throttles is the defrost of evaporator 7, it is to avoid the waste of energy, and because its defrost mode of heating is pipe
Interior defrost, heating effect becomes apparent, and reduces the load of defrosting heater 9, reduces energy consumption during refrigerator defrost.This defrost
It is the defrost of evaporator 7 using the refrigerant heat throttled without capillary 6 in control method, defrost mode is to use high temperature
Refrigerant Bottomhole pressure, heat is outer to managing in pipe, and defrost is more thorough, it is to avoid because the time is not enough caused when managing outer defrost
The not thorough phenomenon of pipe surface defrost.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Any modifications, equivalent substitutions and improvements made within principle etc., should be included in the scope of the protection.
Claims (6)
1. a kind of defrosting control method of refrigerator, the refrigeration system of the refrigerator includes the frequency conversion being connected in turn in refrigerating circuit
Compressor, condenser, capillary and evaporator, the evaporator are provided with defrosting heater, it is characterised in that：The capillary
Two ends bridging have and be provided with magnetic valve on defrost branch road, the defrost branch road, the defrosting control method comprises the following steps：
Step S1, when refrigerator reaches defrost condition, control the rotating speed of frequency-changeable compressor to switch to the by the first original rotating speed
Two rotating speeds, wherein first rotating speed is the rotating speed of refrigerator frequency-changeable compressor when normally freezing, second rotating speed is less than described
First rotating speed；
Step S2, after frequency-changeable compressor is with second rotation speed operation t1 period, control magnetic valve is opened, and wherein t1 is setting
Value；
Step S3, magnetic valve were opened after the t2 periods, and control frequency-changeable compressor is shut down, and wherein t2 is setting value；
Step S4, the unlatching of control defrosting heater, closed electromagnetic valve, frequency-changeable compressor are recovered to original first by the second rotating speed
Rotating speed；
Step S5, when reaching defrost exit criteria, control defrosting heater is closed, and defrost terminates.
2. a kind of defrosting control method of refrigerator as claimed in claim 1, it is characterised in that：The t1 is 3min, the t2
For 3min.
3. a kind of defrosting control method of refrigerator as claimed in claim 1, it is characterised in that：The refrigeration system of the refrigerator is also
Including defrosting sensor, in the step S5, the defrost exit criteria refers to：The defrosting sensor reaches that temperature is exited in setting
Degree.
4. a kind of defrosting control method of refrigerator as claimed in claim 1, it is characterised in that：The refrigeration system also includes anti-
Condensation pipe, the anti-condensation pipe is arranged between the frequency-changeable compressor and condenser.
5. a kind of defrosting control method of refrigerator as claimed in claim 1, it is characterised in that：The refrigeration system also included
Filter, the filter is arranged between the condenser and capillary.
6. a kind of defrosting control method of refrigerator as claimed in claim 1, it is characterised in that：The refrigeration system also includes storage
Liquid device, the reservoir is arranged between the evaporator and frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727010.XA CN105180568B (en) | 2015-10-28 | 2015-10-28 | A kind of defrosting control method of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727010.XA CN105180568B (en) | 2015-10-28 | 2015-10-28 | A kind of defrosting control method of refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105180568A CN105180568A (en) | 2015-12-23 |
| CN105180568B true CN105180568B (en) | 2017-10-03 |
Family
ID=54902831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510727010.XA Active CN105180568B (en) | 2015-10-28 | 2015-10-28 | A kind of defrosting control method of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105180568B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731987A (en) * | 2020-12-28 | 2021-04-30 | 江苏拓米洛环境试验设备有限公司 | Temperature control method and device thereof |
| CN115406133B (en) * | 2021-05-27 | 2024-05-31 | 上海兴邺材料科技有限公司 | Air conditioning system and control method thereof |
| CN113465272B (en) * | 2021-07-16 | 2022-06-28 | 珠海格力电器股份有限公司 | Refrigeration control method of refrigerator, computer device and computer readable storage medium |
| CN114484975B (en) * | 2022-02-08 | 2022-12-13 | 珠海格力电器股份有限公司 | Defrosting control method and refrigerator |
| CN115950075B (en) * | 2022-12-22 | 2024-09-24 | 珠海格力电器股份有限公司 | Defrosting control method and device for refrigeration equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518642A (en) * | 1991-07-08 | 1993-01-26 | Mitsubishi Electric Corp | Cooling device |
| JP3888403B2 (en) * | 1997-12-18 | 2007-03-07 | 株式会社富士通ゼネラル | Method and apparatus for controlling air conditioner |
| JP3538021B2 (en) * | 1998-04-24 | 2004-06-14 | 株式会社東芝 | Refrigerator cooling operation control device |
| CN101532705B (en) * | 2009-04-21 | 2011-03-16 | 海信（山东）空调有限公司 | Defrosting method of cold and warm type frequency conversion air conditioner |
-
2015
- 2015-10-28 CN CN201510727010.XA patent/CN105180568B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105180568A (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105180568B (en) | A kind of defrosting control method of refrigerator | |
| CN104613688B (en) | The hot gas defrosting system of a kind of refrigerator and control method thereof | |
| CN102317724B (en) | A control method of a refrigerator | |
| CN201803567U (en) | Defrosting control system of refrigerator | |
| CN101963437A (en) | Defrosting control system and control method of refrigerator | |
| CN107421200B (en) | A kind of wind cooling refrigerator defrosting control method | |
| CN204787393U (en) | Refrigeration plant sprays | |
| CN106766525B (en) | Wind cooling refrigerator and its defrosting control method | |
| CN104344588A (en) | Refrigerator cooling system and refrigerator employing same | |
| CN106594962A (en) | Defrosting control method for air conditioner, controller and air conditioner | |
| CN104132474B (en) | Environmental conditioning device for low-temperature laboratory | |
| CN108120210B (en) | Defrosting control method, system and refrigerator for three-system refrigerator | |
| CN105043007A (en) | Refrigerator control method and refrigerator | |
| CN101509718B (en) | Air cooling refrigerator automatic defrosting system | |
| CN104121747A (en) | Refrigerating system and refrigerator provided with same | |
| CN104864679A (en) | Natural defrosting method for air-cooled refrigerator | |
| CN206709477U (en) | A kind of refrigerator | |
| CN104390415A (en) | Defrosting system of air-cooled refrigerator, control method for defrosting system and air-cooled refrigerator | |
| CN1982816A (en) | Freezing system with hydrothermal defrosting | |
| CN107023949A (en) | The progress control method of air-conditioning refrigerator all-in-one | |
| CN104329822A (en) | Refrigeration device | |
| CN104344666A (en) | Refrigeration device | |
| CN204313551U (en) | A kind of wind cooling refrigerator defrosting system and wind cooling refrigerator | |
| CN204787466U (en) | Defroster is retrieved to refrigerating unit's heat of condensation | |
| CN208567251U (en) | A kind of household refrigerator-freezer to defrost naturally |
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 | ||
| CP03 | Change of name, title or address |
Address after: 230601 No. 2163 Lianhua Road, Hefei economic and Technological Development Zone, Anhui Patentee after: Changhong MeiLing Limited by Share Ltd Address before: 230061 No. 2163 Lianhua Road, Hefei economic and Technological Development Zone, Anhui Patentee before: Hefei Meiling Co., Ltd. |
|
| CP03 | Change of name, title or address |