CN100572992C - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
CN100572992C
CN100572992C CNB2004800321223A CN200480032122A CN100572992C CN 100572992 C CN100572992 C CN 100572992C CN B2004800321223 A CNB2004800321223 A CN B2004800321223A CN 200480032122 A CN200480032122 A CN 200480032122A CN 100572992 C CN100572992 C CN 100572992C
Authority
CN
China
Prior art keywords
refrigerating chamber
cooling
loop
refrigerator
temperature
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.)
Expired - Fee Related
Application number
CNB2004800321223A
Other languages
Chinese (zh)
Other versions
CN1875230A (en
Inventor
中西和也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1875230A publication Critical patent/CN1875230A/en
Application granted granted Critical
Publication of CN100572992C publication Critical patent/CN100572992C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The present invention relates to the power saving of refrigerator.Refrigerating chamber (21) is with the direct-cooled mode cooling, and refrigerating chamber (22) cools off in a cold mode.Flow channel switching valve (32) switches in series refrigerated compartment (21) and the refrigerating chamber and the refrigerating chamber loop of refrigerating chamber (22) or the refrigerating chamber loop of only cooling off refrigerating chamber (22) simultaneously according to the signal from refrigerator temperature sensor (29) and freezer temperature sensor (30) with refrigerant flow path.Refrigeration closing temperature poor of opening temperature and finishing cooling by the refrigeration that makes the cooling that begins to carry out refrigerating chamber (21), open temperature and finish the difference of refrigeration closing temperature of cooling than the refrigeration of the cooling that begins to carry out refrigerating chamber (22) little, can be with from refrigerating chamber and the refrigerating chamber loop begins to cool off and the stable circulation that finishes cooling in the refrigerating chamber loop makes the refrigerator running.

Description

Refrigerator
Technical field
When the present invention relates to hocket refrigerating chamber and refrigerating chamber the cooling and the cooling of refrigerating chamber and refrigerating chamber cool off with direct-cooled mode and refrigerating chamber with a power saving of the refrigerator that cold mode is cooled off.
Background technology
Existing medium-sized, large-scale refrigerating and cold storage refrigerator have be used for refrigerated compartment refrigerating chamber with evaporimeter and refrigerating chamber cooling fan and the refrigerating chamber that is used to cool off refrigerating chamber with evaporimeter and refrigerating chamber cooling fan, and refrigerating chamber and refrigerating chamber all cooled off in a cold mode.
Fig. 7 is that Japan patent applicant announce number spy shows the existing refrigerator that flat 10-503277 communique is put down in writing.Refrigerating chamber 1 and refrigerating chamber be subregion formation about in the of 2.Filling heat insulator 5 between the interior case 4 of casing 3 and formation refrigerating chamber 1.Be provided with refrigerating chamber in the inside of refrigerating chamber 1 with evaporimeter 6 and refrigerating chamber cooling fan 7 that the air in the refrigerating chamber 1 is circulated with evaporimeter 6 by refrigerating chamber.Be provided with refrigerating chamber in the inside of refrigerating chamber 2 with evaporimeter 8 and refrigerating chamber cooling fan 9 that the air in the refrigerating chamber 2 is circulated with evaporimeter 8 by refrigerating chamber.Be respectively arranged with refrigerator temperature sensor 10 and freezer temperature sensor 11 at refrigerating chamber and refrigerating chamber.
Control circuit 12 with microcomputer (not shown) is controlled the running of compressors 13, transfer valve 14, cooling fan 7, cooling fan 9 and refrigerating chamber 1 and refrigerating chamber 2 is controlled to be set point of temperature.
Yet, because above-mentioned existing structure stirs cold mode between refrigerating chambers 1 and refrigerating chamber 2 with cooling fan 7 and cooling fan 9 respectively, thus be that the good food cooling velocity of Temperature Distribution in the case is fast on the one hand, and the heat leak from sealing gasket etc. is also big on the other hand.And need cold air with passage, defrosting circuit etc., therefore can't constitute cool cycles simply.
Therefore, though proposed heat leak few, use at refrigerating chamber and can utilize free convection to constitute the refrigerator of the direct-cooled mode evaporimeter of cool cycles simply, but when reality is used, the situation of refrigerator running can occur not making, therefore have the problem that exceeds needs ground cooling refrigerating chamber and power consumption is increased on the contrary according to the program that sets in advance.The present invention can reduce the power consumption of refrigerating chamber being adopted the refrigerator of direct-cooled mode.
Summary of the invention
Refrigerator of the present invention has: the compressor of compressed refrigerant; The refrigerating chamber that directly cools off with evaporimeter by refrigerating chamber; Detect the refrigerator temperature sensor of the temperature of refrigerating chamber; By the refrigerating chamber of refrigerating chamber with evaporimeter and the indirect cooling of refrigerating chamber cooling fan; Detect the freezer temperature sensor of the temperature of refrigerating chamber; And flow channel switching valve, it is according to the signal from described refrigerator temperature sensor and described freezer temperature sensor, refrigerant flow path is switched to the refrigerating chamber and refrigerating chamber loop of in series cooling off described refrigerating chamber and described refrigerating chamber simultaneously or the refrigerating chamber loop of only cooling off described refrigerating chamber, it is characterized in that, has following cool cycles, that is, by the refrigeration that makes the cooling that begins to carry out described refrigerating chamber open temperature ( Temperature) and the difference that finishes the refrigeration closing temperature (オ Off temperature) of cooling is opened temperature than the refrigeration of the cooling that begins to carry out described refrigerating chamber and the difference of the refrigeration closing temperature that finishes to cool off is little, begin to cool off from described refrigerating chamber and refrigerating chamber loop, and finish cooling in described refrigerating chamber loop, after finishing, avoid in described refrigerating chamber loop, beginning to cool down in described cooling, so, begin to cool off from described refrigerating chamber and refrigerating chamber loop once more, in described compressor stopped process, described flow channel switching valve is opened to described refrigerating chamber and described refrigerating chamber loop side.
Thus, can make the refrigerator running with the stable circulation that begins to cool off from refrigerating chamber and refrigerating chamber loop and finish cooling in the refrigerating chamber loop.Its result can be cooled to suitable temperature with refrigerating chamber and refrigerating chamber, thereby reduce the power consumption of refrigerator.
Description of drawings
Fig. 1 is the profile of the refrigerator of the first embodiment of the present invention;
Fig. 2 is the refrigeration cycle diagram of the refrigerator of the first embodiment of the present invention;
Fig. 3 is the time diagram of the refrigerator of the first embodiment of the present invention;
Fig. 4 is the time diagram of the refrigerator of the second embodiment of the present invention;
Fig. 5 is the time diagram of the refrigerator of the third embodiment of the present invention;
Fig. 6 is the time diagram of the refrigerator of the fourth embodiment of the present invention;
Fig. 7 is the profile of existing refrigerator;
Description of symbols
21 refrigerating chambers;
22 refrigerating chambers;
26 refrigerating chamber evaporimeters;
27 refrigerating chamber evaporimeters;
28 cooling fans;
29 refrigerator temperature sensors;
30 freezer temperature sensors;
31 compressors;
32 flow channel switching valves;
39, the refrigeration of 40 refrigerating chambers is opened temperature, refrigeration closing temperature;
41, the refrigeration of 42 refrigerating chambers is opened temperature, refrigeration closing temperature.
The specific embodiment
Below, with reference to accompanying drawing embodiments of the invention are described.In addition, this invention is not subjected to the qualification of this embodiment.
(first embodiment)
Fig. 1 is the profile of the refrigerator of the first embodiment of the present invention.Refrigerating chamber 21 and refrigerating chamber be subregion formation about in the of 22.Between the interior case 24 of casing 23 and formation refrigerating chamber 21, be filled with heat-insulating material 25.Disposed refrigerating chamber in the inside of refrigerating chamber 21 with evaporimeter 26.Dispose refrigerating chamber in the inside of refrigerating chamber 22 with evaporimeter 27 and refrigerating chamber cooling fan 28 that the air in the refrigerating chamber 22 is circulated with evaporimeter 27 by refrigerating chamber.
For example, as the refrigerator temperature sensor 29 of thermistor, the temperature that freezer temperature sensor 30 detects refrigerating chamber 21 and refrigerating chamber 22 respectively.Control circuit 33 control compressors 31, flow channel switching valve 32, cooling fan 28.Security when compressor 31 and flow channel switching valve 32 considered to use combustible refrigerants and being configured in the Machine Room 34.Compressor 31 can be controlled with the rotating speed of for example inverter circuit and change refrigerating capacity.
Fig. 2 is the freeze cycle of the refrigerator of the first embodiment of the present invention, and it is formed with evaporimeter 27 and the pipe arrangement that connects them with evaporimeter 26, refrigerating chamber by compressor 31, condenser 35, drier 36, flow channel switching valve 32, first capillary 37, second capillary 38, refrigerating chamber.
Flow channel switching valve 32 makes cold-producing medium in the refrigerating chamber loop of using evaporimeter 27 by second capillary 38 and refrigerating chamber according to the signal from refrigerator temperature sensor 29 and refrigerating chamber sensor 30; Perhaps use the refrigerating chamber and the refrigerating chamber loop flow of evaporimeter 27 with evaporimeter 26, refrigerating chamber by first capillary 37, refrigerating chamber.The situation in refrigerating chamber loop is only cooled off refrigerating chamber, and the situation in refrigerating chamber and refrigerating chamber loop is in series simultaneously refrigerated compartment and refrigerating chamber.
Use the action of the refrigerator that constitutes like that more than the time diagram explanation of Fig. 3.At first, in the compressor stopped process, when in refrigerator temperature sensor 29 and the freezer temperature sensor 30 any one detects temperature more than or equal to predefined regulation, for example detect when opening temperature 41 when freezer temperature sensor 30 more than or equal to predefined refrigeration, then control circuit 33 is accepted to make compressor 31 work from the signal of freezer temperature sensor 30, and flow channel switching valve 32 is opened and cooled off refrigerating chamber 22 to second capillary, 38 sides.
Cold-producing medium heat release and condensation liquefaction condenser 35 of the HTHP of discharging from compressor 31, and through flow channel switching valve 32 by 38 decompressions of second capillary and arrive refrigerating chamber with evaporimeter 27.The cold-producing medium that has carried out heat exchange with air in the refrigerating chamber 22 at refrigerating chamber with evaporation gasification in the evaporimeter 27, thereby the air in the refrigerating chamber 22 are cooled.
In the cooling procedure of refrigerating chamber 22, when freezer temperature sensor 30 detects more than or equal to predefined refrigeration closing temperature 42, and when refrigerator temperature sensor 29 detects and opens temperature 39 more than or equal to predefined refrigeration, then control circuit 33 is accepted the signal from refrigerator temperature sensor 29, and flow channel switching valve 32 is opened and refrigerating chamber 21 and refrigerating chamber 22 are in series cooled off to first capillary, 37 sides.
High-temperature high-pressure refrigerant heat release and condensation liquefaction condenser 35 from compressor 31 is discharged are reduced pressure and arrival refrigerating chamber evaporimeter 26 by first capillary 37 through stream converter 32.The cold-producing medium that has carried out heat exchange with air in the refrigerating chamber 21 energetically gasifies with part evaporation in the evaporimeter 26 at refrigerating chamber, and the air that has carried out heat exchange becomes the air of lower temperature and refrigerated compartment 21, afterwards, the cold-producing medium of gasification and the cold-producing medium that does not have to gasify arrive refrigerating chamber evaporimeter 27, carried out cold-producing medium evaporation gasification in refrigerating chamber is used evaporimeter 27 of heat exchange with the air of refrigerating chamber 22, thereby the air in the refrigerating chamber 22 are cooled.The cold-producing medium of gasification is inhaled into compressor 31.
As described above, according to signal from refrigerator temperature sensor 29 and freezer temperature sensor 30, with flow channel switching valve 32 flowing of cold-producing medium switched to refrigerating chamber loop or refrigerating chamber and refrigerating chamber loop, thereby the temperature of refrigerating chamber and refrigerating chamber is controlled.
In addition, for refrigerating chamber 21 temperature being controlled at about 4 ℃ to 5 ℃, refrigerating chamber 22 temperature are controlled at-18 ℃ approximately, and the refrigeration that refrigerating chamber 21 is begun to cool down is opened temperature 39 and the refrigeration closing temperature 40 that stops to cool off and the refrigeration that refrigerating chamber 22 begins to cool down is opened temperature 41 and the refrigeration closing temperature 42 that stops to cool off is enrolled in the control program of control circuit 33 in advance.Control circuit 33 is accepted the signal of the temperature inside the box of refrigerating chamber 21 that refrigerator temperature sensor 29 and freezer temperature sensor 30 detect and refrigerating chamber 22, comes operate compressor 31 and flow channel switching valve 32.
Wherein, by making poor (differential) of refrigeration unlatching temperature 39 that refrigerating chamber 21 is begun to cool down and the refrigeration closing temperature 40 that stops to cool off hereinafter referred to as refrigerating chamber, the refrigeration unlatching temperature 41 that comparison refrigerating chamber 22 begins to cool down is little with poor (differential hereinafter referred to as refrigerating chamber) of the refrigeration closing temperature 42 that stops to cool off, for example by being made as about 1 ℃ with refrigerating chamber is differential, be made as about 3 ℃ with refrigerating chamber is differential, feasible about 5 ℃ of reaching regulation when refrigerating chamber 21, and refrigerating chamber 22 when reaching the pact-18 ℃ of regulation compressor 31 stop, in compressor 31 stopped processes, be subjected to the influence of environment temperature to make refrigerating chamber 21 and refrigerating chamber 22 heat absorptions and temperature rises, but because reaching the refrigeration that begins to cool down earlier than the temperature inside the box of refrigerating chamber 22, the temperature inside the box of refrigerating chamber 21 opens temperature, so must be to begin to cool off by refrigerating chamber and refrigerating chamber loop.
As described above, in the present embodiment, open the poor, littler of temperature 39 and refrigeration closing temperature 40 by the refrigeration that makes refrigerator temperature sensor 29 than the difference of the refrigeration unlatching temperature 41 of freezer temperature sensor 30 and the closing temperature 42 that freezes, can make the refrigerator running with the stable circulation that begins to cool off from refrigerating chamber and refrigerating chamber loop and finish cooling in the refrigerating chamber loop, suppress to make refrigerating chamber to be less than or equal to refrigeration closing temperature 42, promptly refrigerating chamber to be exceeded that needs ground cools off and the situation that makes the power consumption increase, thereby can seek power saving.
(second embodiment)
Fig. 4 is the time diagram of the second embodiment of the present invention.Explanation is omitted in the action identical with first embodiment, and the control of compressor rotary speed only is described.
Beginning to cool off from refrigerating chamber and refrigerating chamber loop and finishing the stable circulation of cooling in the refrigerating chamber loop, the rotating speed of the compressor 31 when making refrigerating chamber and refrigerating chamber loop is (hereinafter referred to as R 2) the rotating speed of compressor 31 during than the refrigerating chamber loop is (hereinafter referred to as R 1) low, can reduce the input of the more than half compressor that accounts for power consumption, and by needs coolings can the refrigerating chamber loop time high rotating speed when adopting than refrigerating chamber and refrigerating chamber loop, the duration of runs in the time of can loop, freezing-inhibiting chamber, thus can seek power saving.
In addition, beginning to cool off from refrigerating chamber and refrigerating chamber loop and finishing the stable circulation of cooling in the refrigerating chamber loop, for example big and under the situation that the duration of runs in refrigerating chamber and refrigerating chamber loop is elongated at the capacity of refrigerating chamber, the rotating speed (R of the compressor 31 when making the refrigerating chamber loop 1) the rotating speed (R of compressor 31 during than refrigerating chamber and refrigerating chamber loop 2) low, the duration of runs in refrigerating chamber and refrigerating chamber loop can be shortened, thereby power saving can be sought.
(the 3rd embodiment)
Fig. 5 is the time diagram of the third embodiment of the present invention.Explanation is omitted in the action identical with first embodiment, the control of cooling fan rotation speed only is described.
Beginning to cool off from refrigerating chamber and refrigerating chamber loop and finishing the stable circulation of cooling in the refrigerating chamber loop, when beginning by cooling in the refrigerating chamber loop, change the rotating speed of refrigerating chamber cooling fan 28 in time at T1, for example the rotating speed of the cooling fan 28 when with the refrigerating chamber loop is made as R 3The time, by making it with than R 3Slow-revving R 5Be rotated, when having suppressed cooling and having begun in the refrigerating chamber loop, under the state of refrigerating chamber heat exchanger effectiveness difference, carry out heat exchange with the evaporating temperature height of evaporimeter 27, reduced the input of cooling fan 28, thereby can improve cooling in the refrigerating chamber loop cooling effectiveness when beginning, and can seek power saving.
(the 4th embodiment)
Fig. 6 is the time diagram of the fourth embodiment of the present invention.Explanation is omitted in the action identical with first embodiment, the control of cooling fan rotation speed only is described.Beginning to cool off from refrigerating chamber and refrigerating chamber loop and finishing the stable circulation of cooling, when beginning, at T by cooling in refrigerating chamber and refrigerating chamber loop in the refrigerating chamber loop 2Refrigerating chamber cooling fan 28 is stopped, when having suppressed cooling and having begun in refrigerating chamber and refrigerating chamber loop, under the state of refrigerating chamber heat exchanger effectiveness difference, carry out heat exchange with the evaporating temperature height of evaporimeter 27, reduced the input of cooling fan 28, thereby can improve cooling in refrigerating chamber and the refrigerating chamber loop cooling effectiveness when beginning, and can seek province's electrification.
In addition, by in compressor 31 stopped processes, the flow channel switching valve 32 of present embodiment is opened to refrigerating chamber and refrigerating chamber loop side, can make cold-producing medium be full of refrigerating chamber and refrigerating chamber loop and improved cooling effectiveness when compressor 31 starts, and then can improve cooling in refrigerating chamber and the refrigerating chamber loop cooling effectiveness when beginning, thereby can seek power saving.
The possibility of utilizing on the industry
Refrigerator of the present invention, owing to reduced power consumption, so can extensively utilize. In addition, the present invention Also can be applicable to Peltier formula (ペ Le チ エ formula) refrigerator etc.

Claims (5)

1, a kind of refrigerator, it has: the compressor of compressed refrigerant; The refrigerating chamber that directly cools off with evaporimeter by refrigerating chamber; Detect the refrigerator temperature sensor of the temperature of refrigerating chamber; By the refrigerating chamber of refrigerating chamber with evaporimeter and the indirect cooling of refrigerating chamber cooling fan; Detect the freezer temperature sensor of the temperature of refrigerating chamber; And flow channel switching valve, it is according to the signal from described refrigerator temperature sensor and described freezer temperature sensor, refrigerant flow path is switched to the refrigerating chamber and the refrigerating chamber loop of in series cooling off described refrigerating chamber and described refrigerating chamber simultaneously, perhaps switch to the refrigerating chamber loop of only cooling off described refrigerating chamber, it is characterized in that, has following cool cycles, promptly, the difference of opening temperature and finishing the refrigeration closing temperature of cooling by the refrigeration that makes the cooling that begins to carry out described refrigerating chamber open temperature than the refrigeration of the cooling that begins to carry out described refrigerating chamber and the difference of the refrigeration closing temperature that finishes to cool off little, begin to cool off from described refrigerating chamber and refrigerating chamber loop, and finish cooling in described refrigerating chamber loop, after finishing, avoid in described refrigerating chamber loop, beginning to cool down in described cooling, so, begin to cool off from described refrigerating chamber and refrigerating chamber loop once more, in described compressor stopped process, described flow channel switching valve is opened to described refrigerating chamber and described refrigerating chamber loop side.
2, refrigerator as claimed in claim 1 is characterized in that, the rotating speed of the described compressor the when rotating ratio of the described compressor when making described refrigerating chamber of cooling and refrigerating chamber loop cools off described refrigerating chamber loop is low.
3, refrigerator as claimed in claim 1 is characterized in that, the rotating speed height of the described compressor the when rotating ratio of the described compressor when making described refrigerating chamber of cooling and refrigerating chamber loop cools off described refrigerating chamber loop.
4, refrigerator as claimed in claim 1 is characterized in that, when the described refrigerating chamber of cooling loop, in the stipulated time after the cooling beginning described refrigerating chamber speed of cooling fan is changed.
5, refrigerator as claimed in claim 1 is characterized in that, when described refrigerating chamber of cooling and refrigerating chamber loop, in the stipulated time after the cooling beginning described refrigerating chamber cooling fan is stopped.
CNB2004800321223A 2003-11-28 2004-11-16 Refrigerator Expired - Fee Related CN100572992C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003399079A JP2005156108A (en) 2003-11-28 2003-11-28 Refrigerator
JP399079/2003 2003-11-28

Publications (2)

Publication Number Publication Date
CN1875230A CN1875230A (en) 2006-12-06
CN100572992C true CN100572992C (en) 2009-12-23

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CN (1) CN100572992C (en)
WO (1) WO2005052475A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRN20080008A1 (en) * 2008-02-15 2009-08-16 Indesit Co Spa ELECTRIC DEVICE FOR COOLING AND CONSERVATION OF FOOD.
KR101542770B1 (en) * 2008-11-26 2015-08-07 엘지전자 주식회사 Refrigerator
CN101696831B (en) * 2009-10-21 2012-10-03 合肥华凌股份有限公司 Mechanical temperature-control refrigerating system for improving refrigerating capability of direct-cool refrigerator and control method thereof
EP2938942B1 (en) * 2012-12-31 2018-01-31 Arçelik Anonim Sirketi A cooling device
CN103542691A (en) * 2013-10-31 2014-01-29 合肥荣事达三洋电器股份有限公司 Sectional type additional heating device used for electronic direct cooling refrigerator
CN105698462B (en) * 2016-01-29 2018-02-13 合肥美的电冰箱有限公司 A kind of direct cooling refrigerator blower control method system and refrigerator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09229533A (en) * 1996-02-23 1997-09-05 Matsushita Refrig Co Ltd Refrigerator
JPH11311458A (en) * 1998-04-28 1999-11-09 Toshiba Corp Chiller
JP2001082849A (en) * 1999-09-16 2001-03-30 Toshiba Corp Refrigerator
JP3819693B2 (en) * 2000-09-29 2006-09-13 三洋電機株式会社 Refrigerator operation control device
JP2002286347A (en) * 2001-03-27 2002-10-03 Sanyo Electric Co Ltd Cooling storage box

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WO2005052475A1 (en) 2005-06-09
CN1875230A (en) 2006-12-06
JP2005156108A (en) 2005-06-16

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