CN1119601C - Fan running control method for freezer heat radiation - Google Patents
Fan running control method for freezer heat radiation Download PDFInfo
- Publication number
- CN1119601C CN1119601C CN 96123280 CN96123280A CN1119601C CN 1119601 C CN1119601 C CN 1119601C CN 96123280 CN96123280 CN 96123280 CN 96123280 A CN96123280 A CN 96123280A CN 1119601 C CN1119601 C CN 1119601C
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- compressor
- heat transmission
- temperature
- blower fan
- room temperature
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- Devices That Are Associated With Refrigeration Equipment (AREA)
- Defrosting Systems (AREA)
Abstract
This invention provides a method to reduce the power consumption by reducing the input into a compressor when the room temperature is relatively high. A fan for heat radiation is stopped when the room temperature T is below a prescribed value Tx in the normal operation of a compressor in which the operation and the stop are repeated. When the room temperature T is not lower than the prescribed value Tx and below Ty , the fan for heat radiation is synchronously operated with the compressor. When the room temperature T is not less than a prescribed value Ty , the fan for heat radiation is constantly operated irrespective of the operation or the stop of the compressor. In the defrosting operation in which the compressor is stopped, the fan for heat radiation is stopped when the room temperature T is below a prescribed value Tz . When the room temperature T is not less than the prescribed value Tz , the fan for heat radiation is constantly operated.
Description
The present invention relates to the method for controlling of operation that refrigerator promotes the heat transmission blower fan of compressor and condenser heat transmission, relate in particular to according to room temperature and carry out heat transmission blower fan running stopping control, to seek the refrigerator heat transmission fan running control method of refrigerator power saving.
Fig. 3 and Fig. 4 illustrate the conventional example of common refrigerator.Among Fig. 3, refrigerator has cabinet shell 10, and bottom surface conduit 12 and compression support 13 are equipped with in these cabinet shell 10 bottoms.As shown in Figure 3 and Figure 4, dispose bottom surface condenser 2 on the bottom surface conduit 12, dispose electrodynamic type compressor 1 and heat transmission blower fan 3 together on the compression support 13.Refrigerator is by running heat transmission blower fan 3, imports outside air from bottom surface conduit 12 grades, by such importing outside air, promotes the heat radiation of compressor 1 and condenser 2.
In addition, among Fig. 3, shown in the label 4 is the room temperature test section that detected temperatures T uses, and what label 15,16 illustrated respectively is cooler, circulating cold air blower fan.Thereby constitute the refrigerator freeze cycle by above-mentioned compressor 1, condenser 2 and cooler 15 etc.
When this refrigerator normally moves,, compressor 1 is turned round repeatedly and stop according to design temperature and in-cabinet temperature.And, when the above-mentioned cooler 15 equivalance frosts of thawing defrost, stop compressor 1 running.And during respectively with normal operation and when defrosting corresponding, to the operation of heat transmission blower fan 3 with stop to control.At first, control makes shown in Fig. 5 (a) during normal operation, and above-mentioned room temperature test section 4 detected room temperature T are during less than set point of temperature Tx (for example 11 ℃), just stop the running of heat transmission blower fan 3, when room temperature T surpasses set point of temperature Tx, make heat transmission blower fan 3 and compressor 1 run-in synchronism.Next, then control during defrosting and make shown in Fig. 5 (b), (no matter room temperature T size how) shuts down heat transmission blower fan 3 in the whole interval of room temperature.
Thereby, in the existing heat transmission fan running control method shown in Figure 5, only be controlled to be when room temperature T finally surpasses set point of temperature Tx when normal operation, and the heat transmission blower fan 3 that just turns round during compressor 1 running.This is because heat radiation during compressor 1 running, and room temperature T when higher compressor 1 and condenser 2 be difficult to heat release, and when these two conditions conform to,, promote the heat radiation of compressor 1 and condenser 2 by turning round heat transmission blower fan 3.And, be to stop compressor operation all the time during defrosting, thereby prevent that also compressor from crossing cold this intention, so stop the running of heat transmission blower fan during defrosting.
In the current refrigerator heat transmission fan running control method following problem is arranged as mentioned above, at first, when normal operation shown in Fig. 5 (a), control heat transmission blower fan 3 and compressor 1 run-in synchronism when although room temperature T surpasses set point of temperature Tx, but room temperature T rises to the words of the temperature of more increasing than set point of temperature Tx, even when compressor 1 shuts down, the temperature of compressor 1 grade still is difficult to descend.And compressor 1 temperature is high, decrease in efficiency, thereby, in order to remedy this decrease in efficiency, will increase the electric power that inputs to compressor 1, it is big that the consumed power of refrigerator will become.
When defrosting shown in Fig. 5 (b), be controlled to be and stop heat transmission blower fan 3 running for a long time, but in the defrosting time that compressor 1 shuts down, when room temperature T was higher, compressor 1 equitemperature still was difficult to descend.And compressor 1 temperature is still higher, and the starting performance when defrosting back compressor 1 is restarted is relatively poor, thereby the electric power that inputs to compressor 1 when restarting increases, and it is big that the refrigerator consumed power will become.
On the other hand, compressor 1 shuts down all the time during defrosting, thereby might produce such problem, if heat transmission blower fan 3 turns round, when particularly room temperature was very low, compressor is supercooling just during defrosting.Specifically, the temperature of compressor 1 does not exceed common more than 5 ℃ than condenser 2 temperature, the inoperative possibility of refrigerator freeze cycle is just arranged, thereby must avoid making compressor 1 temperature too descend because of the running of heat transmission blower fan 3 yet.
The present invention is just at the premises, and its purpose is to provide a kind of can making to the input of compressor in the higher occasion of room temperature to reduce, and reduces the heat transmission fan running control method of refrigerator consumed power.
First means, constitute the cooler that freeze cycle is used for comprising, compressor and condenser, refrigerator with the heat transmission blower fan that promotes this compressor and condenser heat transmission, it is a kind of refrigerator heat transmission fan running control method, it is characterized in that, in described compressor turns round the uptime that stops repeatedly, room temperature T is during less than lower limit set temperature T x, stop the running of described heat transmission blower fan, room temperature T is during more than described lower limit set temperature T x but less than upper limit design temperature Ty, make described heat transmission blower fan and described compressor run-in synchronism, room temperature T is when upper limit design temperature Ty is above, and described heat transmission blower fan all the time turns round.
According to these first means, during normal the operation, room temperature is when the upper limit design temperature Ty higher than lower limit set temperature T x is above, all the time make the running of heat transmission blower fan, thereby, when surpassing upper limit design temperature Ty the synchronous operated control method of heat transmission blower fan and compressor is compared, compressor and condenser heat dissipation capacity are increased with room temperature T.Thus,, can guarantee that still compressor temperature is lower, improve its efficient, make the power reduction that inputs to compressor even if when room temperature T surpasses higher relatively upper limit design temperature Ty.On the other hand, the heat transmission blower fan that turns round all the time and is compared with compressor run-in synchronism occasion, and the electric power that inputs to the heat transmission blower fan only increases compressor when stopping, and that part of electric power of heat transmission blower fan also turns round.But when room temperature T surpassed higher relatively upper limit design temperature Ty, the compressor dwell time was shorter usually, thereby on the whole, can make that part of electric power that reduces to the input of compressor than the input to the heat transmission blower fan increase that part of big.
Second means, constitute the cooler that freeze cycle is used for comprising, compressor and condenser, refrigerator with the heat transmission blower fan that promotes this compressor and condenser heat transmission, it is a kind of refrigerator heat transmission fan running control method, it is characterized in that, shut down at described compressor, melt in the defrosting time of long-pending frost on the described cooler, room temperature T is during less than the set point of temperature Tz that sets between upper limit design temperature Ty at lower limit set temperature T x, stop the running of described heat transmission blower fan, when the set point of temperature Tz that room temperature T sets at lower limit set temperature T x is above, make described heat transmission blower fan running between upper limit design temperature Ty.
According to this second means, during defrosting, room temperature T just makes the running of heat transmission blower fan when above being set at higher relatively described regulation room temperature Tz, thereby the control method that the heat transmission blower fan is shut down when surpassing set point of temperature Tz with room temperature T is compared, compressor and condenser heat dissipation capacity are increased, thus, when room temperature T surpasses higher relatively set point of temperature Tz, also can make the compressor temperature after the defrosting lower, improve its starting performance, input to the electric power of compressor when restarting after reducing to defrost.On the other hand, running heat transmission blower fan during defrosting is compared with stopping heat transmission blower fan running occasion, and that part of electric power that inputs to the heat transmission blower fan increases.But when room temperature T surpassed higher relatively set point of temperature Tz, it is that part of greatly that part of electric power ratio that can make the compressor start performance improvement cause input to reduce inputs to the heat transmission blower fan.And room temperature T stops the running of heat transmission blower fan during less than relatively low set point of temperature Tz, thereby compressor supercooling can prevent to defrost the time.
Fig. 1 (a) illustrates is the control of refrigerator heat transmission fan running control method one embodiment of the present invention when normally moving; What figure (b) illustrated is the control of identical embodiment when defrosting.
The curve map that concerns between room temperature and the compressor temperature during Fig. 2 controls when being defrosting shown in the schematic diagram 1 (b).
Fig. 3 is the longitudinal section of signal refrigerator conventional example.
Fig. 4 is the figure in partial schematic diagram 3IV-IV line direction cross section.
Fig. 5 (a) illustrates is the control example of current refrigerator heat transmission fan running control method when normally moving; The control example that Fig. 5 (b) illustrates when being identical example defrosting.
Next, with reference to the description of drawings embodiment of the invention.In addition, in the embodiment of the invention illustrated in figures 1 and 2, partly add same numeral with conventional example same composition shown in Figure 5, and with reference to Fig. 3 part identical with conventional example shown in Figure 4 with Fig. 3 with Fig. 4 explanation.
Refrigerator heat transmission fan running control method of the present invention is applicable to the sort of refrigerator for example shown in Figure 3.Among Fig. 3, refrigerator has cabinet shell 10, and bottom surface conduit 12 and compression support 13 are equipped with in the bottom of this cabinet shell 10.The back side 11 downsides of cabinet shell 10 also are equipped with back side conduit 14.As shown in Figure 3 and Figure 4, dispose bottom surface condenser 2 on the bottom surface conduit 12, dispose electrodynamic type compressor 1 and heat transmission blower fan 3 together on the compression support 13.And by running heat transmission blower fan 3, refrigerator imports ambient atmos from bottom surface conduit 12 grades, by the ambient atmos promotion compressor 1 of this importing and the heat radiation of condenser 2, discharges the ambient atmos that imports from back side conduit 14 grades again.In addition, among Fig. 3 shown in the label 4 is to detect the room temperature test section that room temperature T uses, and shown in the label 15,16 is respectively cooler, circulating cold air blower fan.And, by the freeze cycle of formation refrigerators such as above-mentioned compressor 1, condenser 2 and cooler 15, capillary (not shown).
In this refrigerator, according to design temperature in the cabinet and actual temperature, make compressor 1 running and stop when normally moving.At this moment, the dwell time of compressor 1 also depends on design temperature, is about 24 minutes in room temperature T lower winter, and room temperature T is shorter higher summer, is about 20 minutes.And, then stop the moving commentaries on classics of compressor 1 at the defrosting time that melts area frost on above-mentioned cooler 15 grades.And, respectively according to normal operating time and defrosting time, and according to above-mentioned room temperature test section 4 detected room temperature T, to the running of heat transmission blower fan 3 with stop to control.
The normal operating time that turns round repeatedly and stop at compressor 1, shown in Fig. 1 (a) to heat transmission blower fan 3 control of turning round.Specifically, above-mentioned room temperature test section 4 detected room temperatures 4 are during less than set point of temperature Tx (for example 11 ℃), and heat transmission blower fan 3 shuts down.And room temperature T surpasses set point of temperature Tx, during less than Ty (for example 25 ℃), make heat transmission blower fan 3 and compressor 1 run-in synchronism.That is to say that when room temperature T surpassed set point of temperature Tx less than Ty, heat transmission blower fan 3 was in compressor also running in 1 duration of runs, 3 runnings of heat transmission blower fan also stop in compressor 1 running dwell time.And when room temperature T surpasses set point of temperature Ty, though compressor 1 be running or stop, making 3 runnings of heat transmission blower fan all the time.
Here the present embodiment that explanation constitutes like this role when running well.According to present embodiment, during normal operation, when room temperature T surpasses than the high set point of temperature Ty of set point of temperature Tx, heat transmission blower fan 3 is turned round all the time, thereby heat transmission blower fan 3 is compared when surpassing set point of temperature Ty with this control method of compressor 1 run-in synchronism with room temperature T, can increase the heat dissipation capacity of compressor 1 and condenser 2.Owing to this reason, even if when room temperature T surpasses higher relatively set point of temperature Ty, still can guarantee to reduce compressor 1 temperature, improve its efficient, reduce the electric power that inputs to compressor 1.
And the heat transmission blower fan 3 that turns round is all the time compared with compressor 1 run-in synchronism the time, inputs to the electric power of heat transmission blower fan 3, increases also to make heat transmission blower fan 3 this part electric power of running when compressor 1 stops.But usually the consumed power of heat transmission blower fan 3 compare with the consumed power of compressor 1 be quite little (for example, compressor 1 consumed power is 200W, and the consumed power of heat transmission blower fan 3 is 5W etc.), and, when room temperature T surpassed higher relatively set point of temperature Ty, as mentioned above, the dwell time of compressor 1 was shorter, thereby, can accomplish that generally the electric power that the input of compressor 1 reduces is bigger than the input recruitment of heat transmission blower fan 3.
Next, the defrosting time that shuts down at compressor 1, shown in Fig. 1 (b) to heat transmission blower fan 3 control of turning round.Specifically, above-mentioned room temperature test section 4 detected room temperature T stop the running of heat transmission blower fan 3 during less than set point of temperature Tz.And when room temperature T surpassed set point of temperature Tz, heat transmission blower fan 3 all the time then turned round.
Next illustrate that with reference to Fig. 2 the present embodiment of such formation is in the defrosting time role.In addition, Fig. 2 is the curve map that concerns between room temperature T and compressor 1 temperature (case temperature) Tc during signal defrosting between on-stream period all the time with regard to heat transmission blower fan 3 running stopping periods and heat transmission blower fan 3 respectively.Heat transmission blower fan 3 method for controlling of operation were corresponding when the variations in temperature of solid line signal defrosted with present embodiment among Fig. 2.
According to present embodiment, during defrosting, room temperature T turns round heat transmission blower fan 3 when surpassing higher relatively set point of temperature Tz all the time, the control method that when surpassing set point of temperature Tz with room temperature T heat transmission blower fan 3 is shut down is compared, compressor 1 and condenser 2 heat dissipation capacities are increased, and compressor 1 temperature reduces (referring to Fig. 2 solid line A).Owing to this reason, even if when room temperature T surpasses higher relatively set point of temperature Tz, still can reduce defrosting back compressor 1 temperature, improve startability, reduce the electric power that inputs to compressor 1 when restarting after the defrosting.
And the defrosting heat transmission blower fan 3 that the time turns round is all the time compared when shutting down with heat transmission blower fan 3, and increase is inputed to heat transmission blower fan 3 that part of electric power.But as mentioned above, it is quite little that the consumed power of heat transmission blower fan 3 is compared with the consumed power of compressor 1, thereby room temperature T is when surpassing higher relatively set point of temperature Tz, can accomplish compressor 1 starting performance improve and make that part of electric power that input reduces than input to heat transmission blower fan 3 that part of greatly.And room temperature T is during less than relatively low set point of temperature Tz, owing to stop the running of heat transmission blower fan 3, thereby the supercooling (referring to Fig. 2 solid line B) of compressor 1 can prevent to defrost the time.
Invention according to claim 1 record, during normal operation, room temperature T turns round the heat transmission blower fan when surpassing than the high set point of temperature Ty of set point of temperature Tx all the time, thereby the synchronous operated control method of heat transmission blower fan and compressor is compared when surpassing set point of temperature Ty with room temperature T, can increase compressor and condenser heat dissipation capacity. Owing to this reason, even if when room temperature T surpasses relatively high set point of temperature Ty, can guarantee that also compressor temperature is lower, improve its efficient, reduce the electric power that inputs to compressor. And the heat transmission blower fan is turned round all the time, and to compare with synchronous operated with compressor the time, the electric power that inputs to the heat transmission blower fan increases that part of electric power that still makes the running of heat transmission blower fan when compressor stops. But when room temperature T surpassed relatively high set point of temperature Ty, the dwell time of compressor was shorter usually, thereby it is big to accomplish that generally that part of electric power that the compressor input is reduced increases part than the input of heat transmission blower fan. Therefore, when surpassing regulation room temperature Ty with room temperature T the synchronous operated existing control method of heat transmission blower fan and compressor is compared, can effectively be reduced the consumed power of refrigerator.
Invention according to claim 2 records, during defrosting, room temperature T makes the running of heat transmission blower fan when surpassing set point of temperature Tz, thereby the control method that still stops the running of heat transmission blower fan when surpassing set point of temperature Tz with room temperature T compares, and can increase the heat dissipation capacity of compressor and condenser. Owing to this reason, even if when room temperature T surpasses relatively high set point of temperature Tz, still can reduce the temperature of the rear compressor of defrosting, improve its starting performance, reduce the electric power that inputs to compressor when restarting after defrosting. And when defrosting running heat transmission blower fan is compared with the occasion that the heat transmission blower fan shuts down, and increase is inputed to that part of electric power of heat transmission blower fan. But when room temperature T surpasses relatively high set point of temperature Tz, can make the compressor start performance improvement and that part of electric power of importing minimizing than input to the heat transmission blower fan that part of greatly. Therefore, the existing control method that still stops the running of heat transmission blower fan when surpassing set point of temperature Tz with room temperature T is compared, and can effectively reduce the consumed power of refrigerator. And room temperature T shuts down the heat transmission blower fan during less than relatively low set point of temperature Tz, thereby compressor supercooling can prevent from defrosting the time. Therefore, do not damage the danger of refrigerator freezing circulatory function.
Claims (2)
- Comprise constitute cooler, compressor and the condenser that freeze cycle uses and impel this compressor and the refrigerator of the heat transmission blower fan of condenser heat transmission in, a kind of refrigerator heat transmission fan running control method is characterized in that,Turn round repeatedly and in uptime of stopping at described compressor, room temperature T is during less than lower limit set temperature T x, stop the running of described heat transmission blower fan, room temperature T is during more than described lower limit set temperature T x but less than upper limit design temperature Ty, make described heat transmission blower fan and described compressor run-in synchronism, room temperature T is when upper limit design temperature Ty is above, and described heat transmission blower fan all the time turns round.
- Comprise constitute cooler, compressor and the condenser that freeze cycle uses and impel this compressor and the refrigerator of the heat transmission blower fan of condenser heat transmission in, refrigerator heat transmission fan running control method, it is characterized in that,In described compressor shuts down, melts the defrosting time of long-pending frost on the described cooler, room temperature T is during less than the set point of temperature Tz that sets between upper limit design temperature Ty at lower limit set temperature T x, stop the running of described heat transmission blower fan, when the set point of temperature Tz that room temperature T sets at lower limit set temperature T x is above, make described heat transmission blower fan running between upper limit design temperature Ty.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP335343/95 | 1995-12-22 | ||
| JP335343/1995 | 1995-12-22 | ||
| JP33534395A JPH09178320A (en) | 1995-12-22 | 1995-12-22 | Heat radiation fan operation control method of refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1159558A CN1159558A (en) | 1997-09-17 |
| CN1119601C true CN1119601C (en) | 2003-08-27 |
Family
ID=18287465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96123280 Expired - Fee Related CN1119601C (en) | 1995-12-22 | 1996-12-19 | Fan running control method for freezer heat radiation |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH09178320A (en) |
| KR (1) | KR100196127B1 (en) |
| CN (1) | CN1119601C (en) |
| TW (1) | TW326486B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5376796B2 (en) * | 2007-12-13 | 2013-12-25 | 株式会社東芝 | refrigerator |
| CN109812405B (en) * | 2017-11-21 | 2020-11-24 | 海尔智家股份有限公司 | Control method and device for grille of household appliance |
| CN108266959B (en) * | 2017-12-29 | 2020-06-23 | 青岛海尔股份有限公司 | Heat dissipation control method of refrigerator and refrigerator |
| CN108375264A (en) * | 2018-02-16 | 2018-08-07 | 吴玉珍 | The refrigerator that high refrigerating efficiency more economizes on electricity |
-
1995
- 1995-12-22 JP JP33534395A patent/JPH09178320A/en active Pending
-
1996
- 1996-11-28 TW TW085114707A patent/TW326486B/en active
- 1996-12-18 KR KR1019960067149A patent/KR100196127B1/en not_active IP Right Cessation
- 1996-12-19 CN CN 96123280 patent/CN1119601C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR100196127B1 (en) | 1999-06-15 |
| JPH09178320A (en) | 1997-07-11 |
| TW326486B (en) | 1998-02-11 |
| CN1159558A (en) | 1997-09-17 |
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