CN1548894A - Electric refrigerator and its running control method - Google Patents
Electric refrigerator and its running control method Download PDFInfo
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- CN1548894A CN1548894A CNA031298516A CN03129851A CN1548894A CN 1548894 A CN1548894 A CN 1548894A CN A031298516 A CNA031298516 A CN A031298516A CN 03129851 A CN03129851 A CN 03129851A CN 1548894 A CN1548894 A CN 1548894A
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- refrigerating chamber
- temperature
- refrigerator
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- expansion valve
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Abstract
The present invention relates to refrigerator and its control, and is especially the technology of configuring refrigerator control units. The refrigerator has separately cooling of cold storage chamber and freezing chamber and lowered compressor load. The refrigerator has cooling circulation path comprising compressor, condenser, expanding valve and evaporator to maintain the cold storage chamber and the freezing chamber in set temperatures. The cold storage chamber and the freezing chamber has separated heat exchange areas of evaporator, separated blowers, different expansion valve of different capacities, and one T-valve in between. The refrigerator of the present invention has raised cold storage chamber cooling speed and lowered power consumption.
Description
Technical field
{ refrigerator and method forcontrolling the same} the invention belongs to the preparation technique field of refrigerator control appliance for refrigerator and its running control method, more detailed is about independent refrigerated compartment and refrigerating chamber, and the refrigerating circulation system of refrigerating chamber running the time can the reduce refrigerator of compressor load.
Background technology
Generally, refrigerator is along with refrigerant (running fluid) compresses-freeze cycle of condensation-expansion-evaporation, the temperature in the cabinet of reducing, fresh the daily necessities that store a period of time food repeatedly.
Such refrigerator as shown in Figure 1, the gaseous coolant of low temperature, low pressure is converted to the compressor 1 of the gaseous coolant of high temperature, high pressure, narrow and small and reduce from the expansion valve 3 of the pressure of the refrigerant of condenser 2 inflows than the diameter at other position with ambient atmos condenser condensing 2 diameters the refrigerant that flows into from compressor 1, the evaporimeter 4 that evaporates, absorbs heat in the cabinet along with the refrigerant by above-mentioned expansion valve 3 under low-pressure state carries out freeze cycle for basic parts.And, for being transported to, the refrigerant that finishes heat exchange through evaporimeter 4 possesses blowing fan 6 in refrigerating chamber and the refrigerating chamber.
But so existing refrigerator is all to enter in the refrigerating chamber by the cold air major part that evaporimeter 4 finishes heat exchange, has only wherein a part just to flow into structure in the refrigerating chamber.Therefore existing refrigerator has following problem:
If 1, refrigerating chamber or any one in-cabinet temperature of refrigerating chamber do not reach design temperature in the refrigerator of existing structure, must operate compressor 1 and blowing fan in order to reduce the in-cabinet temperature that does not reach design temperature, so consume unnecessary electric power.Such as, even the temperature of refrigerating chamber has reached design temperature, when the temperature of refrigerating chamber does not reach design temperature, for the temperature that reduces refrigerating chamber must operate compressor 1 and blowing fan.But at this moment cold air also flows in the refrigerating chamber that reaches design temperature, supplies with unnecessary cold air.Therefore consume unnecessary electric power.
2, the air conditioning quantity that is assigned in the refrigerating chamber afterwards by evaporimeter 4 in the refrigerator of existing structure is few, and the refrigerating chamber cooling velocity is slow so the cooling velocity of refrigerating chamber compares.
Particularly, in the time of when the temperature of the refrigerating chamber of standard electric refrigerator does not reach design temperature, compressor 1 must operate and reach till the design temperature.When therefore refrigerating chamber and temperature of refrigerating chamber difference are big, must drop to the temperature of evaporimeter 4 below the freezer temperature.So compressor 1 is born the shortcoming that required above load operates.
Summary of the invention
The present invention seeks to provide the refrigerator of following characteristics, independent refrigerated compartment and refrigerating chamber, and the refrigerating circulation system of refrigerating chamber running the time can the reduce refrigerator of compressor load.
In order to achieve the above object, the invention provides the refrigerator of following characteristics.Possess the gaseous coolant of low temperature, low pressure be compressed into high temperature, high pressure gaseous coolant compressor and, the gaseous coolant of high temperature, high pressure converted to high temperature, high pressure liquid coolant condenser and, the liquid coolant of high temperature, high pressure expand into low temperature, low pressure gaseous coolant expansion valve and, the liquid coolant of low temperature, the low pressure evaporimeter that flashes to the gaseous coolant of low temperature, low pressure carries out freeze cycle, thus the in-cabinet temperature of refrigerating chamber and refrigerating chamber is maintained in the refrigerator in the design temperature; The heat-exchange surface of above-mentioned evaporimeter is integrated into refrigerating chamber field and refrigerating chamber field, and the cold air that possesses each field of handle process on above-mentioned refrigerating chamber field and the refrigerating chamber field separately is transported to the blowing fan in each chamber, and connect the expansion valve of different capabilities between above-mentioned condenser and the evaporimeter side by side, and possess triple valve between above-mentioned condenser and the expansion valve.
Above-mentioned refrigerating chamber is big with the capacity of expansion valve with the capacity of the expansion valve refrigerating chamber that compares.
The refrigerating chamber field and the refrigerating chamber field of above-mentioned evaporimeter are separated by dividing wall.
The above-mentioned refrigerating chamber that leads to refrigerating chamber interconnects with stream with stream and the refrigerating chamber that leads to refrigerating chamber, and air throttle [Damper] is set on interconnective stream.
Above-mentioned evaporimeter is the heat exchanger of box-like.
Said fan is to stir [sirocco] fan.
And the refrigerator of another kind of form of the present invention includes compressor in order to achieve the above object, condenser, refrigerating chamber expansion valve and refrigerating chamber expansion valve, triple valve, evaporimeter, blowing fan, refrigerating chamber cold air stream, refrigerating chamber cold air stream, air throttle.The gaseous coolant of low temperature/low pressure is compressed into high temp/high pressure gaseous coolant compressor and, the gaseous coolant of high temp/high pressure is condensed into high temp/high pressure liquid coolant condenser and, the liquid coolant of high temp/high pressure is expand into the gaseous coolant of low temperature/low pressure, and crossed the refrigerating chamber expansion valve of the different capabilities that above-mentioned condenser branches away and refrigerating chamber expansion valve and, possess the flow direction of conversion refrigerant between condenser and two expansion valves triple valve and, the liquid coolant of low temperature/low pressure is flashed to the gaseous coolant of low temperature/low pressure, and be divided into refrigerating chamber field and refrigerating chamber field evaporimeter and, be located at separately on the refrigerating chamber field of evaporimeter and the refrigerating chamber field deliver to through the cold air in each field in each chamber blowing fan and, the refrigerating chamber that is communicated with refrigerating chamber with the cold air stream and, be connected when being communicated with refrigerating chamber refrigerating chamber with the refrigerating chamber on the cold air stream with the cold air stream and, possesses the air throttle on the stream that connects refrigerating chamber usefulness cold air stream and refrigerating chamber usefulness cold air stream.The control method of refrigerator has following characteristics in refrigerator of the present invention.When operating refrigerator, by triple valve the flow direction of refrigerant is switched to refrigerating chamber with on the expansion valve, and only operate the refrigerating chamber blowing fan for the design temperature of keeping above-mentioned refrigerating chamber.When operating refrigerator, by triple valve the flow direction of refrigerant is switched to refrigerating chamber with on the expansion valve, and only operate the refrigerating chamber blowing fan for the design temperature of keeping above-mentioned refrigerating chamber.
Time marquis for the temperature running refrigerator of keeping refrigerating chamber if the temperature load of refrigerating chamber descends, just opens above-mentioned air throttle and introduce cold air in refrigerating chamber.When keeping the temperature running refrigerator of refrigerating chamber, the temperature of above-mentioned evaporimeter is set in temperature height than refrigerating chamber, than in the low scope of temperature of refrigerating chamber.
Adopt the refrigerator of the type of cooling of the present invention that following multiple effect is arranged:
First: expansion valve and blowing fan be divided into separately refrigerating chamber with and refrigerating chamber with keeping the design temperature of each chamber, so during the adjusting temperature of refrigerating chamber, can reduce the load of compressor.
Second: expansion valve and blowing fan be divided into separately refrigerating chamber with and refrigerating chamber when using the heat exchange area of evaporimeter also be divided into refrigerating chamber usefulness and refrigerating chamber usefulness, so also can independently cool off refrigerating chamber and refrigerating chamber with an evaporimeter.
The the 3rd: the cooling velocity that can improve the slow refrigerating chamber of the cooling velocity of the refrigerating chamber that compares in the standard electric refrigerator.
The the 4th: reach design temperature earlier regardless of that side in-cabinet temperature according to the present invention, the stream that also can change cold air focuses on cold air in the cabinet that does not reach design temperature, so increase the flexibility of regulating in-cabinet temperature, can improve cooling effectiveness, and can reduce unnecessary power consumption.
Description of drawings
Fig. 1 is the general freeze cycle structure chart of existing standard refrigerator.
Freeze cycle operating state figure when Fig. 2 a is the refrigerating chamber running.
Freeze cycle operating state figure when Fig. 2 b is the refrigerating chamber running.
Explanation for figure major part symbol
1: compressor 2: condenser
3: expansion valve 4: evaporimeter
5: triple valve 8: air throttle
9: dividing wall 105: the refrigerating chamber blowing fan
205: refrigerating chamber blowing fan A: refrigerating chamber cold air stream
B: refrigerating chamber cold air stream C: connect stream
The specific embodiment
Below, describe embodiments of the invention in detail with reference to Fig. 2 a of the present invention, Fig. 2 b figure.Fig. 2 a Fig. 2 b is the freeze cycle structure chart of refrigerator of the present invention.
Refrigerator of the present invention possess the gaseous coolant of low temperature, low pressure be compressed into high temperature, high pressure gaseous coolant compressor 1 and, the liquid coolant that the gaseous coolant of high temperature, high pressure is condensed into the condenser 2 of liquid coolant of high temperature, high pressure and high temperature, the high pressure liquid coolant that expand into the expansion valve of gaseous coolant of low temperature, low pressure and low temperature, the low pressure evaporimeter 4 that flashes to the gaseous coolant of low temperature, low pressure carries out freeze cycle, thus the in-cabinet temperature of refrigerating chamber and refrigerating chamber is maintained in the design temperature.In above-mentioned refrigerator, the heat-exchange surface of evaporimeter 4 is integrated into refrigerating chamber field and refrigerating chamber field, and possess separately on above-mentioned refrigerating chamber field and the refrigerating chamber field the blowing fan of delivering to through the cold air in each field in each chamber 105,205, and connect the expansion valve of different capabilities between above-mentioned condenser 2 and the evaporimeter 4 side by side, and possess triple valve 5 between above-mentioned condenser 2 and the expansion valve.At this moment, refrigerating chamber is big with the capacity of expansion valve 3b with the capacity of the expansion valve 3a refrigerating chamber that compares.And the refrigerating chamber field of above-mentioned evaporimeter 4 and refrigerating chamber field are by dividing wall 9 separately.The above-mentioned refrigerating chamber that leads to refrigerating chamber interconnects with stream B with the refrigerating chamber that leads to refrigerating chamber with stream A, and on the interconnective stream C air throttle 8 is set.And above-mentioned evaporimeter 4 is heat exchangers of box-like, and blowing fan 105,205th stirs fan.
Below, the effect of the refrigerator of the present invention that constitutes like this is described.Running when at first freezer temperature is kept in explanation.Shown in Fig. 2 a, be when the temperature maintenance of refrigerating chamber is in design temperature, switch to refrigerating chamber to the flow direction of refrigerant with on the expansion valve 3a by triple valve 5, and compressor 1 operates the temperature of evaporimeter 4 lower than freezer temperature the time.At this moment, drive the heat that refrigerating chamber accelerates evaporimeters 4 with blowing fan 105 and pass on, and the temperature that blowing fan is driven into refrigerating chamber reaches below the design temperature.And refrigeration uses blowing fan 205 not operate.
When operating refrigerator for the temperature of keeping refrigerating chamber, if the temperature load of refrigerating chamber descends, just open the connection refrigerating chamber and use stream A and refrigerating chamber, allow the cold air of low temperature flow into the temperature load that replenishes the refrigerating chamber that lacks in the refrigerating chamber by standard mode with the air throttle 8 on the stream C of stream B.
Both, interconnected refrigerating chamber cold air stream A and refrigerating chamber cold air stream B, and on the interconnective stream C air throttle 8 was set.Opening above-mentioned air throttle 8 when therefore the temperature of refrigerating chamber uprises is transported to a part of cold air that flows to refrigerating chamber in the refrigerating chamber.At this moment, not driving refrigerating chamber also has no relations with blowing fan 205.Can reduce unnecessary power consumption.
Below, the running when keeping temperature of refrigerating chamber is described.Shown in Fig. 2 b, when the temperature maintenance of refrigerating chamber is in design temperature, the flow direction of refrigerant is switched to refrigerating chamber with on the expansion valve 3b, and compressor 1 operates the temperature of evaporimeter 4 lower than temperature of refrigerating chamber the time by triple valve 5.At this moment, drive the heat that refrigerating chamber accelerates evaporimeters 4 with blowing fan 205 and pass on, and the temperature that blowing fan is driven into refrigerating chamber reaches below the design temperature.And the refrigerating chamber chamber does not operate with blowing fan 105.
And, the going into power and can represent of compressor 1 with the function of the suction/discharge temperature of running time and refrigerant, discharge temperature under certain conditions inlet temperature high load capacity is more little more.
Therefore, the refrigerating chamber of general refrigerator is kept normal temperature, so when keeping temperature of refrigerating chamber running refrigerator, it is high but than operating on the low temperature of the temperature of refrigerating chamber to be set in temperature than refrigerating chamber to the temperature of evaporimeter 4.Therefore with different in the past, can eliminate the phenomenon that compressor 1 is born required above load during the cooling refrigerating chamber.
Both, refrigerator of the present invention was provided with refrigerating chamber respectively with blowing fan 105 and refrigerating chamber blowing fan 205, can independently cool off refrigerating chamber and refrigerating chamber.So when operating refrigerator for the temperature of keeping refrigerating chamber, open refrigerating chamber blowing fan 105 even evaporimeter 4 temperature of setting than refrigerating chamber in-cabinet temperature height, need only, the temperature of evaporimeter 4 can not influence the refrigerating chamber in-cabinet temperature.
So the present invention does not drop to the temperature of evaporimeter 4 below the freezer temperature for the time marquis of the temperature running refrigerator of keeping refrigerating chamber, just be set in a little and operate on the temperature low temperature than refrigerating chamber.Therefore be applied to the duty ratio decline before operating below the in-cabinet temperature of refrigerating chamber on the compressor 1.
As above-mentioned, refrigerator of the present invention can independently cool off refrigerating chamber and refrigerating chamber, so in order to keep the load that can reduce compressor 1 when temperature of refrigerating chamber operates refrigerator.
More than be explanation to the present invention embodiment preferably, have the technology of common knowledge in the present invention's essence technical scope and can find out different embodiment.Important technology scope of the present invention here is presented on the request scope, and should be interpreted as being included in the present invention with the variation in his the identical scope.
Claims (9)
1, refrigerator and its running control method belong to the preparation technique field of refrigerator control appliance, refrigerator characteristics of the present invention are to possess low temperature, the gaseous coolant of low pressure is compressed into high temperature, the compressor of the gaseous coolant of high pressure, high temperature, the gaseous coolant of high pressure converts high temperature to, the condenser of the liquid coolant of high pressure, high temperature, the liquid coolant of high pressure expand into low temperature, the expansion valve of the gaseous coolant of low pressure, low temperature, the liquid coolant of low pressure flashes to low temperature, the evaporimeter of the gaseous coolant of low pressure carries out freeze cycle, thus the in-cabinet temperature of refrigerating chamber and refrigerating chamber is maintained in the refrigerator in the design temperature;
The heat-exchange surface of above-mentioned evaporimeter is integrated into refrigerating chamber field and refrigerating chamber field,
And possess separately on above-mentioned refrigerating chamber field and the refrigerating chamber field the blowing fan that is transported to through the cold air in each field in each chamber,
And the expansion valve that connects different capabilities between above-mentioned condenser and the evaporimeter side by side,
And possesses triple valve between above-mentioned condenser and the expansion valve.
2, refrigerator according to claim 1 is characterized in that above-mentioned refrigerating chamber is big with the capacity of expansion valve with the capacity of the expansion valve refrigerating chamber that compares.
3, refrigerator according to claim 1 is characterized in that the refrigerating chamber field of above-mentioned evaporimeter and refrigerating chamber field separated by dividing wall.
4, refrigerator according to claim 1 is characterized in that the above-mentioned refrigerating chamber that leads to refrigerating chamber interconnects with stream with stream and the refrigerating chamber that leads to refrigerating chamber, and on interconnective stream air throttle is set.
5, refrigerator according to claim 1 is characterized in that above-mentioned evaporimeter is suitable for the heat exchanger of type in upright arrangement slim [straight type].
6, refrigerator according to claim 1 is characterized in that said fan is a Sirocco fan.
7, refrigerator includes compressor, condenser, refrigerating chamber expansion valve and refrigerating chamber expansion valve, triple valve, evaporimeter, blowing fan, refrigerating chamber cold air stream, refrigerating chamber cold air stream, air throttle.The gaseous coolant of low temperature/low pressure is compressed into high temp/high pressure gaseous coolant compressor and, the gaseous coolant of high temp/high pressure is condensed into high temp/high pressure liquid coolant condenser and, the liquid coolant of high temp/high pressure is expand into the gaseous coolant of low temperature/low pressure, and crossed the refrigerating chamber expansion valve of the different capabilities that above-mentioned condenser branches away and refrigerating chamber expansion valve and, possess the flow direction of conversion refrigerant between condenser and two expansion valves triple valve and, the liquid coolant of low temperature/low pressure is flashed to the gaseous coolant of low temperature/low pressure, and be divided into refrigerating chamber field and refrigerating chamber field evaporimeter and, be located at separately on the refrigerating chamber field of evaporimeter and the refrigerating chamber field deliver to through the cold air in each field in each chamber blowing fan and, the refrigerating chamber that is communicated with refrigerating chamber with the cold air stream and, be connected when being communicated with refrigerating chamber refrigerating chamber with the refrigerating chamber on the cold air stream with the cold air stream and, possesses the air throttle on the stream that connects refrigerating chamber usefulness cold air stream and refrigerating chamber usefulness cold air stream.
The control method of refrigerator has following characteristics in refrigerator of the present invention.When operating refrigerator, by triple valve the flow direction of refrigerant is switched to refrigerating chamber with on the expansion valve, and only operate the refrigerating chamber blowing fan for the design temperature of keeping above-mentioned refrigerating chamber.
When operating refrigerator, by triple valve the flow direction of refrigerant is switched to refrigerating chamber with on the expansion valve, and only operate the refrigerating chamber blowing fan for the design temperature of keeping above-mentioned refrigerating chamber.
8, refrigerator according to claim 7 is characterized in, just opening above-mentioned air throttle and introduce cold air in refrigerating chamber if the temperature load of refrigerating chamber descends for the time marquis of the temperature running refrigerator of keeping refrigerating chamber.
9, refrigerator according to claim 7 is characterized in when keeping the temperature running refrigerator of refrigerating chamber, and the temperature of above-mentioned evaporimeter is set in temperature height than refrigerating chamber, than in the low scope of temperature of refrigerating chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031298516A CN1548894A (en) | 2003-05-20 | 2003-05-20 | Electric refrigerator and its running control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031298516A CN1548894A (en) | 2003-05-20 | 2003-05-20 | Electric refrigerator and its running control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1548894A true CN1548894A (en) | 2004-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031298516A Pending CN1548894A (en) | 2003-05-20 | 2003-05-20 | Electric refrigerator and its running control method |
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| Country | Link |
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| CN (1) | CN1548894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080676A (en) * | 2010-08-06 | 2013-05-01 | Lg电子株式会社 | Method for controlling operation of refrigerator |
-
2003
- 2003-05-20 CN CNA031298516A patent/CN1548894A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080676A (en) * | 2010-08-06 | 2013-05-01 | Lg电子株式会社 | Method for controlling operation of refrigerator |
| CN103080676B (en) * | 2010-08-06 | 2015-01-28 | Lg电子株式会社 | Method for controlling operation of refrigerator |
| US9470451B2 (en) | 2010-08-06 | 2016-10-18 | Lg Electronics Inc. | Method for controlling operation of refrigerator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |