CN103868320B - A kind of control method of protection compressor of refrigerator - Google Patents
A kind of control method of protection compressor of refrigerator Download PDFInfo
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- CN103868320B CN103868320B CN201310452796.XA CN201310452796A CN103868320B CN 103868320 B CN103868320 B CN 103868320B CN 201310452796 A CN201310452796 A CN 201310452796A CN 103868320 B CN103868320 B CN 103868320B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005057 refrigeration Methods 0.000 claims abstract description 76
- 238000007710 freezing Methods 0.000 claims description 32
- 230000008014 freezing Effects 0.000 claims description 32
- 238000013461 design Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 241001522296 Erithacus rubecula Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 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
- 230000001012 protector Effects 0.000 description 1
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention relates to a kind of control method of protection compressor of refrigerator; the refrigeration system of described refrigerator comprises compressor, controller, refrigerator temperature sensor, freezer temperature sensor, environment temperature sensor; described controller judges that the thermic load of described refrigerator is excessive; then described controller controls the refrigerating chamber separate refrigeration of described refrigerator; until described controller judges the switching temperature of the temperature of described refrigerating chamber lower than setting, described controller controls described refrigerating chamber and described refrigerating chamber freezes simultaneously.The present invention effectively reduces the load of compressor, protects compressor, reduces the thermic load of refrigeration system.
Description
Technical field
The present invention relates to a kind of control method of protection compressor of refrigerator, particularly one is when thermoacoustic refrigerator load is excessive, and the control method of protection compressor, belongs to the technical field of refrigerator.
Background technology
The refrigerator generally with double round robin cooling system can make refrigerating chamber and refrigerating chamber freeze when the thermic load of refrigerating chamber and refrigerating chamber is all excessive simultaneously, namely just make refrigerating chamber and refrigerating chamber freeze time excessive from thermic load simultaneously, make the thermic load of refrigerator refrigeration system excessive, compressor is from the beginning with maximum power operation, be easy to make it reach overlond running, thus the service life of infringement compressor.For protection compressor; the way of general employing increase compressor protector or increase compressor heat dissipation capacity, but do not solve compressor rotary speed this root problem excessive, for addressing this problem; can only compressor rotary speed be reduced, generally can reach this object by the change of the method for operation.
Be at present in the patent of invention of CN100472155C, disclose the method for operation that refrigerating chamber and refrigerating chamber need when opening simultaneously at the Authorization Notice No. of China, relatively refrigerating chamber and the Current Temperatures of refrigerating chamber and the temperature difference between refrigeration and freezing design temperature, the storeroom thermic load that temperature difference is large is larger, because freezing design temperature is more much lower than ambient temperature, therefore refrigerating chamber is preferentially made to freeze, when refrigerating chamber reaches freezing design temperature, switch to refrigeration chamber, this kind of way can make compressor load reduce, but this control method is not used in this patent thermoacoustic refrigerator load higher when, its object is just in order to keep higher humidity when each room is run.
Another defect of this control method is, when refrigerating chamber and refrigerating chamber need to freeze simultaneously, first refrigerating chamber is freezed, but refrigerating chamber needs to freeze after refrigerating chamber has freezed again, when ambient temperature is higher, the cooling time of refrigerating chamber can be long, likely can have influence on the fresh-keeping effect of refrigerating chamber to food like this.
Summary of the invention
Main purpose of the present invention is to solve the problem and deficiency, provides and can protect compressor when the thermic load of refrigerator is excessive, make it be unlikely to the control method of the protection compressor of a kind of refrigerator of overlond running.
For achieving the above object, technical scheme of the present invention is:
A kind of control method of protection compressor of refrigerator, the refrigeration system of described refrigerator comprises compressor, controller, refrigerator temperature sensor, freezer temperature sensor, environment temperature sensor, it is characterized in that: when described controller judges that Td > T1+ △ t and Tc > T2+ △ t meets simultaneously, or described controller judges TH > Th1, when Td > T1 and Tc > T2 meets simultaneously, be judged as that the thermic load of described refrigerator is excessive, described controller controls refrigerating chamber separate refrigeration, until when described controller judges Td < Ty1 or Td < Ty2, described controller switches to refrigerating chamber and refrigerating chamber refrigeration mode simultaneously,
TH is refrigerator ambient temperature, and Th1 is the refrigerator ambient temperature of setting, and Td is the temperature in refrigerating chamber, and Tc is the temperature in refrigerating chamber, and T1 is freezing design temperature, and T2 is refrigeration design temperature;
△ t be temperature in refrigerating chamber and refrigerating chamber respectively with freezing design temperature and the temperature difference refrigerating design temperature;
Ty1 is when Td > T1+ △ t and Tc > T2+ △ t meets simultaneously, the independent freezing refrigeration mode of setting and the switching temperature of refrigerating simultaneously between refrigeration mode;
Ty2 is when TH > Th1, Td > T1 and Tc > T2 meets simultaneously, the independent freezing refrigeration mode of setting and the switching temperature of refrigerating simultaneously between refrigeration mode.
Further, when refrigerating chamber and refrigerating chamber freeze simultaneously, when described controller judges Tc < T2, stop described refrigeration chamber, described controller judges Tc < T2, and during Td < T1, stops freezing to described refrigerating chamber.
Further, when refrigerating chamber and refrigerating chamber freeze simultaneously, when described controller judges Td < T1, stop freezing to described refrigerating chamber, when described controller judges Tc < T2, stop described refrigeration chamber.
Further, △ t is 2 DEG C.
In sum; the control method of the protection compressor of a kind of refrigerator provided by the invention; by when thermoacoustic refrigerator load is excessive; change the method for operation of refrigerating chamber and refrigerating chamber, allow refrigerating chamber first separate refrigeration when thermic load is excessive, again refrigerating chamber and refrigerating chamber are freezed when the thermic load of room to be frozen is reduced to a certain degree simultaneously; the rotating speed avoiding compressor is excessive; effectively reduce the load of compressor, protect compressor, reduce the thermic load of refrigeration system.
Accompanying drawing explanation
Fig. 1 is the refrigeration system schematic diagram of the embodiment of the present invention one;
Fig. 2 is the control method schematic diagram of the embodiment of the present invention one;
Fig. 3 is the control method schematic diagram of the embodiment of the present invention two.
As shown in Figure 1 to Figure 3, compressor 1, condenser 2, refrigerating evaporator 3, refrigeration evaporator 4, condensation fan 5, freezing blower fan 6, refrigeration blower fan 7, dew removing tube 8, filter 9, magnetic valve 10, capillary 11, muffler 12, muffler 13.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
Embodiment one
As shown in Figure 1; a control method for the protection compressor 1 of refrigerator, the refrigeration system of this wind cooling refrigerator comprises compressor 1, condenser 2, refrigerating evaporator 3, refrigeration evaporator 4, condensation fan 5, freezing blower fan 6, refrigeration blower fan 7, controller, refrigerator temperature sensor, freezer temperature sensor, environment temperature sensor.
Compressor 1, condenser 2, dew removing tube 8, filter 9, magnetic valve 10 are linked in sequence successively through conduit, magnetic valve 10 outlet is divided into two-way, refrigeration capillary 11a of leading up to is connected with the import of refrigeration evaporator 4, separately lead up to freezing capillary 11b, be connected with refrigerating evaporator 3 through entry conductor, the outlet of refrigeration evaporator 4 is connected with refrigeration muffler 12, refrigeration muffler 12 is connected with the entry conductor of refrigerating evaporator 3, be connected with freezing muffler 13 between refrigerating evaporator 3 and compressor 1, form a complete refrigeration system.
Compressor 1 compressed refrigerant enter condenser 2 and and air heat-exchange, condensation fan 5 is opened simultaneously, cooled cold-producing medium enters dew removing tube 8 and enters filter 9 and magnetic valve 10 except after dew cooling, two-way is divided into from magnetic valve 10 cold-producing medium out, by freezing capillary 11b and refrigeration capillary 11a, enter refrigerating evaporator 3 and refrigeration evaporator 4 respectively, cold-producing medium from refrigeration evaporator 4 out after, through refrigeration muffler 12, converge in entry conductor import department with from freezing capillary 11b cold-producing medium out, through entry conductor, enter refrigerating evaporator 3, and by freezing muffler 13, get back to compressor 1, complete a kind of refrigeration cycle.
During refrigerating chamber separate refrigeration, cold-producing medium enters refrigeration evaporator 4 by refrigeration capillary 11a, out enters refrigerating evaporator 3 by refrigeration muffler 12 and freezing capillary 11b afterwards from refrigeration evaporator 4.
During refrigerating chamber separate refrigeration, cold-producing medium enters refrigerating evaporator 3 by means of only freezing capillary 11b.
When refrigerating chamber and refrigerating chamber all freeze, cold-producing medium enters refrigeration evaporator 4 and refrigerating evaporator 3 respectively by refrigeration capillary 11a and freezing capillary 11b, enter refrigerating evaporator 3 from refrigeration evaporator 4 cold-producing medium out, freeze for refrigerating evaporator 3 together with enter the cold-producing medium of refrigerating evaporator 3 from freezing capillary 11b.
Flow of refrigerant returns compressor 1 by freezing muffler 13 after refrigerating evaporator 3, circularly cooling thus.
It can thus be appreciated that during refrigerating chamber separate refrigeration, refrigerating chamber must freeze, and during refrigerating chamber separate refrigeration, refrigerating chamber can not freeze.
Refrigerator temperature sensor, freezer temperature sensor, environment temperature sensor are connected with controller respectively, and the temperature value recorded separately is passed to controller, according to each temperature value, controller judges that whether thermoacoustic refrigerator load is excessive, thus control the method for operation of refrigerator.
When the thermic load of refrigerator is excessive, first the independent refrigerating chamber to refrigerator freezes, when room to be frozen reaches the switching temperature of setting, switch to the pattern that refrigerating chamber and refrigerating chamber freeze simultaneously again, due to time setting shorter of the first separate refrigeration of refrigerating chamber in this method of operation, when environment temperature is 40 DEG C, record by experiment, generally be no more than one hour, so the fresh-keeping effect of refrigerating chamber can not be affected in the process of this method of operation.
Below in conjunction with accompanying drawing 2, the control method of refrigerator when thermic load is excessive is described step by step:
Step 1, controller judges whether following two kinds of situations meet one,
Situation one, meet Td > T1+ △ t and Tc > T2+ △ t, namely internal temperature of refrigerator is higher than more than design temperature certain value simultaneously.
Situation two, meets TH > Th1, Td > T1 and Tc > T2 simultaneously, namely refrigerator ambient temperature higher than setting environment temperature, and between refrigerator inside the temperature of room all higher than design temperature.
Wherein, Td is the temperature in refrigerating chamber, Tc is the temperature in refrigerating chamber, T1 is freezing design temperature, generally value in temperature range-25 DEG C ~-4 DEG C, T2 is refrigeration design temperature, generally value in temperature range 0 DEG C ~ 10 DEG C, △ t be temperature in refrigerating chamber and refrigerating chamber respectively with the temperature difference of refrigeration design temperature and freezing design temperature, by technical staff based on experience value and experimental result determine, general value is about 2 DEG C, Th1 be setting refrigerator ambient temperature, value is generally about 35 DEG C, and TH is the ambient temperature of refrigerator.
If above-mentioned situation one and situation two all do not meet, then perform step 2, controller judges that the thermic load of refrigerator is normal, and refrigerator operates in the normal mode.
If meet a kind of situation in above-mentioned situation one and situation two, then perform step 3, be judged as that the thermic load of refrigerator is excessive.
Then perform step 4, controller Controlling solenoid valve 10 makes cold-producing medium only flow to refrigerating evaporator 3, freezes separately to refrigerating chamber.
Perform step 5 again, judge whether freezer temperature Td is less than the switching temperature of setting.
When refrigerator is in situation for the moment, the independent freezing refrigeration mode of setting and the switching temperature of refrigerating simultaneously between refrigeration mode are Ty1; When refrigerator is in situation two, the independent freezing refrigeration mode of setting and the switching temperature of refrigerating simultaneously between refrigeration mode are Ty2.
Ty1 and Ty2 be value between-20 DEG C ~ 10 DEG C generally, is determined by experiment by technical staff.
When controller judges that the temperature Td of refrigerating chamber is greater than the switching temperature of setting, return step 4, continue refrigerating chamber separate refrigeration.
When controller judges that the temperature Td of refrigerating chamber is less than the switching temperature of setting, perform step 6, controller Controlling solenoid valve makes cold-producing medium enter refrigerating evaporator 3 and refrigeration evaporator 4 respectively, operational mode is switched to refrigerating refrigeration mode simultaneously.
In the process performing step 6, perform step 7, controller judges whether Tc < T2, if meet Tc < T2, then perform step 8, controller stops refrigeration chamber, judges whether Td < T1 with Time Controller.
If meet Td < T1, then perform step 9, stop freezing to refrigerating chamber.
If do not meet Td < T1, then perform step 10, to refrigerating chamber separate refrigeration.
Parameters in above-mentioned control method is for the refrigerator with different structure and refrigeration system, and value is generally also different, and technical staff can determine according to the concrete condition of refrigerator.
Embodiment two
As shown in Figure 3, when the refrigeration system of refrigerator be refrigerating chamber and refrigerating chamber all can the situation of separate refrigeration time, step 7 in the control method of embodiment one and step 8 are changed into controller and judge whether Td < T1, Tc < T2 simultaneously, if Td < is T1, then perform step 8, stop refrigerating chamber refrigeration, if Tc < is T2, then perform step 9, stop refrigeration chamber.
Other steps in the control method of the present embodiment are identical with the step in embodiment one, repeat no more herein.
This control method is all applicable for the refrigerator with refrigerating chamber separate refrigeration function.
The control method of protection compressor of the present invention; by when the thermic load of refrigerator is excessive; change the way of the method for operation of refrigerating chamber and refrigerating chamber; allow refrigerating chamber in first separate refrigeration, freeze when the thermic load of room to be frozen is reduced to a certain degree to refrigerating chamber and refrigerating chamber simultaneously again, the rotating speed avoiding compressor is excessive; effectively reduce the load of compressor; protect compressor, reduce the thermic load of refrigeration system, save energy consumption.
As above, plan content given by reference to the accompanying drawings, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. the control method of the protection compressor of a refrigerator, the refrigeration system of described refrigerator comprises compressor, controller, refrigerator temperature sensor, freezer temperature sensor, environment temperature sensor, it is characterized in that: when described controller judges that Td > T1+ △ t and Tc > T2+ △ t meets simultaneously, or described controller judges TH > Th1, when Td > T1 and Tc > T2 meets simultaneously, be judged as that the thermic load of described refrigerator is excessive, described controller controls refrigerating chamber separate refrigeration, until when described controller judges Td < Ty1 or Td < Ty2, described controller switches to refrigerating chamber and refrigerating chamber refrigeration mode simultaneously,
TH is refrigerator ambient temperature, and Th1 is the refrigerator ambient temperature of setting, and Td is the temperature in refrigerating chamber, and Tc is the temperature in refrigerating chamber, and T1 is freezing design temperature, and T2 is refrigeration design temperature;
△ t be temperature in refrigerating chamber and refrigerating chamber respectively with freezing design temperature and the temperature difference refrigerating design temperature;
Ty1 is when Td > T1+ △ t and Tc > T2+ △ t meets simultaneously, the independent freezing refrigeration mode of setting and the switching temperature of refrigerating simultaneously between refrigeration mode;
Ty2 is when TH > Th1, Td > T1 and Tc > T2 meets simultaneously, the independent freezing refrigeration mode of setting and the switching temperature of refrigerating simultaneously between refrigeration mode.
2. the control method of the protection compressor of a kind of refrigerator according to claim 1; it is characterized in that: when refrigerating chamber and refrigerating chamber freeze simultaneously; when described controller judges Tc < T2; stop described refrigeration chamber; described controller judges Tc < T2; and during Td < T1, stop freezing to described refrigerating chamber.
3. the control method of the protection compressor of a kind of refrigerator according to claim 1; it is characterized in that: when refrigerating chamber and refrigerating chamber freeze simultaneously; when described controller judges Td < T1; stop freezing to described refrigerating chamber; when described controller judges Tc < T2, stop described refrigeration chamber.
4. the control method of the protection compressor of a kind of refrigerator according to any one of claim 1 to 3, is characterized in that: △ t is 2 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310452796.XA CN103868320B (en) | 2013-09-27 | 2013-09-27 | A kind of control method of protection compressor of refrigerator |
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| CN201310452796.XA CN103868320B (en) | 2013-09-27 | 2013-09-27 | A kind of control method of protection compressor of refrigerator |
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| CN103868320B true CN103868320B (en) | 2016-03-16 |
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| CN104534804A (en) * | 2014-12-23 | 2015-04-22 | 合肥美的电冰箱有限公司 | Method and device for controlling fan motor of refrigerator and refrigerator |
| CN104533819B (en) * | 2014-12-23 | 2017-02-22 | 合肥美的电冰箱有限公司 | Method and device for controlling fan motor of refrigerator and refrigerator |
| CN104634064B (en) * | 2015-03-13 | 2017-08-15 | 合肥美的电冰箱有限公司 | Refrigeration control method, refrigeration control device and refrigerator |
| CN105486001B (en) * | 2015-12-22 | 2018-05-11 | 青岛海尔股份有限公司 | Double air door refrigerators and its control method |
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| CN106288638B (en) * | 2016-08-17 | 2019-02-26 | 合肥华凌股份有限公司 | A kind of control method of refrigerator |
| CN111426126A (en) * | 2020-03-31 | 2020-07-17 | 澳柯玛股份有限公司 | Double-system air-cooling frequency conversion refrigerator and control method thereof |
| CN112050505B (en) * | 2020-09-11 | 2022-07-05 | 长虹美菱股份有限公司 | Double-circulation refrigerator refrigerating system and control method thereof |
| CN114777379B (en) * | 2022-04-08 | 2024-06-18 | 海信冰箱有限公司 | Refrigerator and refrigerator control method |
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Address after: 266736, No. 8, Hisense Avenue, South Village, Pingdu City, Shandong, Qingdao Patentee after: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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Address after: No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Patentee after: Hisense refrigerator Co.,Ltd. Country or region after: China Address before: No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Patentee before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. Country or region before: China |