CN101248323A

CN101248323A - Refrigerator

Info

Publication number: CN101248323A
Application number: CNA2006800309292A
Authority: CN
Inventors: 弘松和明
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2005-08-25
Filing date: 2006-04-06
Publication date: 2008-08-20
Anticipated expiration: 2026-04-06
Also published as: JP3885158B1; WO2007023593A1; JP2007057160A; CN100549600C

Abstract

A refrigerator having a temperature switchover chamber (3) provided with operation modes in which the temperature in the chamber can be switched to the low temperature side where a stored object is cooled and stored by a cooler (17) and to the high temperature side in which the temperature of heated food is kept by heating by a heater (15). The refrigerator has a temperature switchover chamber blower (14) for circulating air in the temperature switchover chamber (3) on the high temperature side. The refrigerator also has a quick thaw mode. In the quick thaw mode, the heater (15) and the temperature switchover chamber blower (14) are driven to deliver warm air, the delivery of the warm air is stopped after a predetermined period, and the stored object in the temperature switchover chamber (3) is quickly thawed.

Description

Refrigerator

Technical field

The present invention relates to possess and to switch the refrigerator of chamber by the temperature that the user switches to the indoor temperature of hope.

Background technology

Living environment be changed significantly current, the kinsfolk family of feeding asynchronism(-nization) has separately increased.Therefore, for incubator or insulation accommodating container are used in the heated food insulation.Thus, can save the time of repeatedly cooking.

On the other hand, in patent documentation 1, disclose the refrigerator that except refrigerating chamber and refrigerating chamber, also possesses temperature switching chamber.This refrigerator possess switching switch to temperature the cold air of sending the chamber path throttle setting and make temperature switch the heater that heats up in the chamber.Thus, the indoor temperature that temperature can be switched the chamber switches to the temperature band of the low temperature of freezing, refrigeration, little hope of freezing, icing etc. corresponding to user's purposes.

Patent documentation 1: the spy opens flat 10-288440 communique

Summary of the invention

But, if, then have the financial burden of guaranteeing difficult problem and user that the place is set to become big problem for incubator or accommodating container are used in the heated food insulation.In addition, food need be re-moved the miscellaneous operation in the accommodating container, the relatively poor problem of convenience is arranged.

The purpose of this invention is to provide a kind of user's of alleviating burden and make the place guarantee to become easily and the higher refrigerator of convenience.

In order to achieve the above object, refrigerator of the present invention, be to possess the refrigerator that temperature is switched the chamber, described temperature switch low temperature side that the chamber can switch to indoor temperature the cooling preservation of carrying out reserve by cooling of being undertaken by cooler and the heating of being undertaken by heater with to the high temperature side of heated food insulation and have the different a plurality of patterns of indoor temperature, described refrigerator is characterised in that to have the temperature switching chamber pressure fan that the said temperature of high temperature side is switched indoor air circulation; Be provided with the driving of switching the chamber pressure fan by above-mentioned heater and said temperature with warm braw pass out to said temperature switch in the chamber, through stopping the sending of warm braw, quick-thawing pattern that the quick-thawing said temperature switches indoor reserve behind the given time.

According to this structure, if temperature switch the chamber be switched to comprise freezing, littlely freeze, ice, the low temperature side of each pattern of refrigeration etc. then, become low temperature chamber from cooler importing cold air.Thus, can be with the stored refrigerated or freezing preservation of reserve.Heater is driven if temperature is switched pattern that the chamber is switched to high temperature side, and switches the chamber pressure fan by temperature and switch the indoor hot room that makes air circulation become high temperature in temperature.Thus, can carry out the temporary transient insulation of the food behind the cooking or the warm cooking in winter.

In addition, if being switched to the snap frozen pattern, temperature switching chamber warm braw is supplied to reserve by driving heater and temperature switching chamber pressure fan.After the supply of warm braw, if through the set time then stop heater and stop to send of warm braw.Thus, freezing reserve is thawed apace, and the reserve after preventing to thaw is overheated.Also can when the stopping of heater, stop temperature and switch the chamber pressure fan, also can continue the driving that temperature is switched the chamber pressure fan for the circulation of room air or cold air import.

In addition, the present invention is characterized in that in the refrigerator of said structure, and above-mentioned quick-thawing pattern imports to said temperature with cold air and switches in the chamber stored refrigerated reserve after stopping the sending of warm braw.According to this structure, if after the supply of warm braw through set during, then temperature is switched the chamber and is switched to low temperature side and stored refrigerated reserve.

In addition, the present invention is characterized in that in the refrigerator of said structure, after above-mentioned quick-thawing pattern begins, stops to send of warm braw when having passed through given time.

In addition, the present invention is characterized in that in the refrigerator of said structure, when above-mentioned quick-thawing pattern begins, detects the indoor temperature that said temperature switches the chamber, changes the dwell time of warm braw according to testing result.According to this structure, when beginning, the quick-thawing pattern detects the indoor temperature that said temperature switches the chamber.Under the indoor temperature condition with higher, shorten to the time that stops warm braw, under the lower situation of indoor temperature, be lengthened to the time that stops warm braw.

In addition, the present invention is characterized in that in the refrigerator of said structure, and after above-mentioned quick-thawing pattern began, the temperature of switching the chamber at said temperature stopped to send of warm braw when both reaching fixed temperature.

In addition, the present invention is characterized in that in the refrigerator of said structure, is provided with and detects the infrared ray sensor that said temperature switches the surface temperature of indoor reserve, after above-mentioned quick-thawing pattern begins, when both reaching fixed temperature, the surface temperature of reserve stops to send of warm braw.

According to the present invention, owing to possess the low temperature side that indoor temperature can be switched to stored refrigerated or freezing preservation reserve and the temperature of the high temperature side of heated food insulation switched the chamber, so a kind of refrigerator can be provided, can alleviate be used for to the user's of heated food insulation financial burden and make the place guarantee to become easily and convenience higher.In addition, owing to be provided with the quick-thawing pattern that after sending warm braw, stops, so reserve can be thawed apace and can prevent the overheated of reserve.Thereby, can further improve the convenience of refrigerator.

In addition, according to the present invention the stored refrigerated reserve because the quick-thawing pattern imports to cold air that temperature is switched in the chamber after stopping the sending of warm braw, thus the food after can preventing to thaw since placement degenerate.

In addition, according to the present invention,, prevent the overheated of less reserve etc. reliably so can easily detect the dwell time of warm braw owing to begin the back, when having passed through the set time, stop to send of warm braw in the quick-thawing pattern.

In addition, according to the present invention, owing to the indoor temperature of the switching of detected temperatures when the quick-thawing pattern begins chamber, according to the dwell time of sending of testing result change warm braw, prevent reliably that so the dwell time of warm braw can be set more meticulously thawing of reserve is not enough and overheated.

In addition, according to the present invention because begin the back in the quick-thawing pattern, the temperature of switching the chamber in temperature stops to send of warm braw when both reaching fixed temperature, prevents the overheated of reserve reliably so can easily detect the dwell time of warm braw.

In addition, according to the present invention,, prevent the overheated of reserve reliably so the dwell time of warm braw can easily be detected owing to begin the back, when the surface temperature of reserve both reaches fixed temperature, stop to send of warm braw in the quick-thawing pattern.

Description of drawings

Fig. 1 is the front view of the refrigerator of expression the 1st embodiment of the present invention.

Fig. 2 is the right view of the refrigerator of expression the 1st embodiment of the present invention.

Fig. 3 is the right cutaway view of the refrigerator of expression the 1st embodiment of the present invention.

Fig. 4 is that the temperature of the refrigerator of expression the 1st embodiment of the present invention is switched the right cutaway view of chamber.

Fig. 5 is the main cutaway view of middle level portion of the refrigerator of expression the 1st embodiment of the present invention.

Fig. 6 is the cold air loop diagram that flows of cold air of the refrigerator of expression the 1st embodiment of the present invention.

Fig. 7 is the flow chart that the temperature of the refrigerator of expression the 1st embodiment of the present invention is switched the high temperature side hand-off process of chamber.

Fig. 8 is the flow chart that the temperature of the refrigerator of expression the 1st embodiment of the present invention is switched the low temperature side hand-off process of chamber.

Fig. 9 is the flow chart that the temperature of the refrigerator of expression the 1st embodiment of the present invention is switched the quick-thawing pattern of chamber.

Figure 10 is the flow chart that the temperature of the refrigerator of expression the 2nd embodiment of the present invention is switched the quick-thawing pattern of chamber.

Figure 11 is the flow chart that the temperature of the refrigerator of expression the 3rd embodiment of the present invention is switched the quick-thawing pattern of chamber.

Label declaration

1 refrigerator

2 refrigerating chambers

3 temperature are switched the chamber

4 ice-making compartments

5 vegetable compartment

6 refrigerating chambers

9

12 import ventilating path

13 temperature are switched chamber discharge air door

14 temperature are switched the chamber pressure fan

15 heaters

17 coolers

16,24,34 temperature sensors

18 refrigerating chamber pressure fans

19,21 return ventilating path

20 temperature are switched the chamber and are returned air door

22 refrigerating chamber air doors

25 iced chamber air doors

28 refrigerating chamber pressure fans

30 Thermal Cutoffs

31,32 cold air paths

33 backplates

35 compressors

The specific embodiment

Below, with reference to the description of drawings embodiments of the present invention.Fig. 1, Fig. 2 are the front view and the right views of the refrigerator of expression one embodiment.Refrigerator 1 is equipped with refrigerating chamber 2, is equipped with temperature switching chamber 3 and ice-making compartment 4 in the middle level on the upper strata.Lower floor at refrigerator 1 is equipped with vegetable compartment 5 and refrigerating chamber 6.

Refrigerating chamber 2 has the door of splitting, stored refrigerated reserve.Temperature is switched chamber 3 and is located at the left side, middle level, selects a plurality of patterns to switch indoor temperature by the user.Ice-making compartment 4 is located at the right side, middle level, carries out ice making.Vegetable compartment 5 is located at the lower floor left side, is maintained the temperature (about 8 ℃) of the storage that is suitable for vegetables.Refrigerating chamber 6 is located at the lower floor right side, is communicated with and freezing preservation reserve with ice-making compartment 4.

Fig. 3 is the right cutaway view of refrigerator 1.In refrigerating chamber 6 and ice-making compartment 4, be provided with the receiver 11 of taking in reserve.In vegetable compartment 5 and temperature switching chamber 3, also be provided with same receiver 11.In refrigerating chamber 2, be provided with a plurality of shelves 41 of taking in of mounting reserve.On the door of refrigerating chamber 2, be provided with collecting bag 42.Thus, improved the ease of use of refrigerator 1.In addition, the bottom in refrigerating chamber 2 is provided with the iced chamber 23 that is maintained iced temperature band (about 0 ℃).

Be provided with cold air path 31 in the behind of refrigerating chamber 6, in cold air path 31, be equipped with the cooler 17 that is connected with compressor 35.Be provided with the cold air path 32 that is communicated with cold air path 31 in the behind of refrigerating chamber 2.The driving of the compressor 35 by having connected condenser, expander (all not shown) makes the refrigerant circulation of iso-butane etc. make the freeze cycle running.Thus, carry out heat exchange and generate cold air as the cooler 17 of the low temperature side of freeze cycle air with circulation in cold air path 31.

In addition, in

cold air path

31,32, be equipped with refrigerating chamber pressure fan 18 and refrigerating chamber pressure fan 28 respectively.As the back related the circumstances, the cold air that is generated by cooler 17 was fed in refrigerating chamber 6, ice-making compartment 4, iced chamber 23 and the temperature switching chamber 3 via cold air path 31 by the driving of refrigerating chamber pressure fan 18.In addition, this cold air is fed in refrigerating chamber 2 and the vegetable compartment 5 via cold air path 32 by the driving of refrigerating chamber pressure fan 28.

Fig. 4 is that the expression temperature is switched the right cutaway view of chamber 3.The upper and lower surface of temperature switching chamber 3 is utilized thermal wall 7,8 and refrigerating chamber 2 and vegetable compartment 5 heat insulation isolation.In addition, the side of temperature switching chamber 3 utilizes not shown thermal wall and ice-making compartment 4 and refrigerating chamber 6 heat insulation isolation.The front that temperature is switched chamber 3 can open and close by the door 9 of rotary type.The back side that temperature is switched chamber 3 is covered by backplate 33.

The top of plate 33 is provided with the inflow entrance 33a that air flows in temperature switching chamber 3 overleaf, is provided with air in the bottom and switches the flow export 33b that flow out chamber 3 from temperature.In addition, near inflow entrance 33a and flow export 33b, be provided with the temperature sensor 24,16 that detected temperatures is switched the temperature in the chamber 3.

The rear of plate 33 overleaf, and form to be provided with between the thermal wall 10 of outer wall and import ventilating path 12.In importing ventilating path 12, be provided with temperature and switch the chamber and discharge air door 13 (with reference to Fig. 5), be communicated to cold air path 31 and will direct into temperature by the cold air that cooler 17 (with reference to Fig. 3) produces and switch in the chamber 3.In addition, switch the chamber by temperature and discharge the switching of air door 13 and open and close cooler 17 and temperature and switch cold air path between the inflow side of chamber 3, utilize switching amount or switching time to regulate and flow into air quantity the temperature switching chamber 3 from importing ventilating path 12.

In importing ventilating path 12, between temperature switching chamber discharge air door 13 and inflow entrance 33a, be provided with temperature and switch chamber pressure fan 14.The driving of switching chamber pressure fan 14 by temperature easily directs into the cold air of cold air path 31 in the temperature switching chamber 3.

Be provided with temperature switching chamber at the rear of flow export 33b and return air door 20.Temperature is switched the chamber and is returned air door 20 and have opening 20a, 20b, has by rotation one to be opened and with another baffle plate 20c that closes.If 20b opens with peristome, then switch the air that flows out chamber 3 and be guided the cooler 17 via returning ventilating path 19 (with reference to Fig. 5) from temperature.

If 20a opens with peristome, then switch the air that flows out chamber 3 and be guided the suction side that temperature is switched chamber pressure fan 14, and temperature is switched the outflow side of chamber 3 and the cold air path of cooler 17 is closed from temperature.Thereby, switch chamber pressure fan 14, close peristome 20b and temperature is switched the chamber return air door 20 and close by actuation temperature, can make temperature switch the air circulation of chamber 3 as shown by arrow F like that.In addition, also temperature can be switched chamber pressure fan 14 is located in the temperature switching chamber 3.

The behind of switching the inflow entrance 33a of chamber 3 in temperature is provided with heater 15.Heater 15 is made of the Glass tube heater of heat radiation type, utilizes the radiant heat that discharges via backplate 33 to make temperature switch chamber 3 and heats up.Temperature is switched chamber pressure fan 14 and is configured to towards the air-supply of the surface of heater 15.Thus, can reduce the surface temperature of heater 15 and improve security.In addition, in flow export 33b, if be provided with the high temperature that becomes the temperature that reaches set then disconnect the Thermal Cutoffs 30 of heater 15.

In switching chamber 3, temperature is equipped with the receiver 11 of the drawer type of mounting reserve.On the bottom surface of receiver 11, be provided with temperature sensor 34.Thus, can correctly detect the temperature that is positioned in the reserve on the receiver 11.

Fig. 5 represents near the main cutaway view in middle level of refrigerator 1.The cold air path 31 of the behind of refrigerating chamber 6 is at the front upper opening of refrigerating chamber pressure fan 18, utilizes refrigerating chamber pressure fan 18 that air is blown in the ice-making compartment 4.Bottom at the refrigerating chamber 6 that is communicated with ice-making compartment 4 is provided with refrigerating chamber air door 22.In the rear lower portion of refrigerating chamber 6, be provided with and make air get back to cooler 17 air guiding via refrigerating chamber air door 22 returning ventilating path 21 (with reference to Fig. 3) in the cold air path 31.Regulate from the air quantity of the air of refrigerating chamber 6 outflows by the switching of refrigerating chamber air door 22.

The top of cold air path 31 is communicated to cold air path 32 via refrigerating chamber air door 27.In addition, cold air path 31 is communicated with iced chamber 23 via iced chamber air door 25 by shunt, and is communicated to importing ventilating path 12 (with reference to Fig. 4) as described above.

Lower backside opening at refrigerating chamber 2 has refrigerating chamber flow export (not shown), is provided with vegetable compartment inflow entrance (not shown) on vegetable compartment 5.Refrigerating chamber flow export and vegetable compartment inflow entrance are linked by the path (not shown) at the back side of switching chamber 3 by temperature, and refrigerating chamber 2 is communicated with vegetable compartment 5.

Temperature is switched the chamber and is returned the left bottom that air door 20 is located at temperature switching chamber 3.At the rear portion that temperature is switched chamber 3 and vegetable compartment 5, be provided with from temperature switch the chamber return air door 20 extend downwards and be communicated to return ventilating path 21 (with reference to Fig. 3) return ventilating path 19.As mentioned above, the air that switches in the chamber 3 of temperature is opened and is guided in the cooler 17 via returning

ventilating path

19,21 by the peristome 20b (with reference to Fig. 4) that temperature is switched the chamber and returned air door 20.In addition, on the back side of vegetable compartment 5, be provided with and return the vegetable compartment flow export (not shown) that ventilating path 19 is communicated with.

Fig. 6 is the cold air circuit diagram that flows of the cold air of expression refrigerator 1.Refrigerating chamber 6, refrigerating chamber 2 and temperature are switched chamber 3 and are set side by side respectively.In addition, ice-making compartment 4 in series sets with refrigerating chamber 6, and iced chamber 23 and vegetable compartment 5 in series set with refrigerating chamber 2.The cold air that is generated by cooler 17 utilizes the driving of refrigerating chamber pressure fan 18 and rising and being sent in the ice-making compartment 4 in cold air path 31 like that as arrow A (with reference to Fig. 5) shown in.The cold air that is sent in the ice-making compartment 4 circulates in ice-making compartment 4 and refrigerating chamber 6, flows out from refrigerating chamber air door 22.Then, turn back in the cooler 17 via returning ventilating path 21.Thus, be cooled in ice-making compartment 4 and the refrigerating chamber 6.

Driving by refrigerating chamber pressure fan 28, as arrow B (with reference to Fig. 5) shown in, in cold air path 32, circulate like that via refrigerating chamber air door 27 at top cold air along separate routes, be sent in the refrigerating chamber 2 as the cold air path 31 of the exhaust side of refrigerating chamber pressure fan 18.In addition, shown in arrow C (with reference to Fig. 5), be sent like that in the iced chamber 23.

These cold air after the circulation, flow in the vegetable compartment 5 in refrigerating chamber 2 and iced chamber 23.The cold air that flow in the vegetable compartment 5 circulates in vegetable compartment 5, and turns back in the cooler 17 via returning ventilating path 19,21.Thus, be cooled in refrigerating chamber 2 and the vegetable compartment 5, if become design temperature then refrigerating chamber air door 27 and iced chamber air door 25 are closed.

In addition, switch the driving of chamber pressure fan 14 by temperature, shown in arrow D (with reference to Fig. 5), importing circulation in the ventilating path 12 like that at top cold air along separate routes, switching the chamber via temperature and discharge air door 13 and flow into temperature and switch in the chamber 3 as the cold air path 31 of the exhaust side of refrigerating chamber pressure fan 18.Flow into the cold air circulation in temperature is switched chamber 3 in the temperature switching chamber 3, switch the chamber from temperature and return air door 20 outflows.Then, shown in arrow E (with reference to Fig. 5), turn back in the cooler 17 via returning ventilating path 19,21.Thus, be cooled in the temperature switching chamber 3.

As mentioned above, temperature is switched chamber 3 and can be switched indoor temperature by user's operation.The pattern that temperature is switched chamber 3 is provided with grape wine (8 ℃), refrigeration (3 ℃), ices each refrigerating mode of (0 ℃), soft freezing (8 ℃), freezing (15 ℃) corresponding to the temperature band.

Thus, the user can with the temperature of hope with reserve freezing or refrigeration and cooling preservation.The switching of indoor temperature can change opens temperature and switches the chamber and discharge the amount or the time of opening of air door 13 and carry out.In addition, for example when switching to the indoor temperature of refrigeration, freezing indoor temperature also can heat up to heater 15 energisings.Thus, can promptly switch to the indoor temperature of hope.

In addition, by to heater 15 energising, the indoor temperature that temperature can be switched chamber 3 switches to the high temperature side of the temporary transient insulation of cooking the back heated food or the warm cooking etc. from the low temperature side of cooling preservation reserve.Because the developmental temperature of main food poisoning bacteria is 30 ℃～45 ℃, so the indoor temperature of high temperature side is considered the tolerance of heater capacity and the Temperature Distribution in the temperature switching chamber 3 etc. and can be made as more than 50 ℃.Thus, can prevent the breeding of bacterium.

In addition, because the heat resisting temperature of the general resin parts that uses in refrigerator is 80 ℃, so can realize cheaply with next if make the indoor temperature of high temperature side be 80 ℃.In addition, for food poisoning bacteria is sterilized, under the situation of for example intestinal tube hemorrhagic coliform (pathogenicity coliform O157), need under 75 ℃, carry out 1 minute heating.Thereby the indoor temperature that more preferably makes high temperature side is 75 ℃～80 ℃.

It below is result of the test about the sterilization of the food poisoning bacteria under 55 ℃.Test sample comprises coliform 2.4 * 10 under original state ³CFU/mL, staphylococcus aureus 2.0 * 10 ³CFU/mL, detection of Salmonella 2.1 * 10 ³CFU/mL, enteritis vibrios 1.5 * 10 ³CFU/mL, Bacillus cereus 4.0 * 10 ³CFU/mL.This test sample was warmed to 55 ℃ with 40 minutes from 3 ℃,, got back to 3 ℃ from 55 ℃, check the amount of each bacterium once more with 80 minutes 55 ℃ of insulations after 3.5 hours down.As a result, which bacterium has all reduced to the level of 10CFU/mL following (not detecting).Thereby, also have sufficient sterilization effect even make the design temperature of the high temperature side of temperature switching chamber 3 be 55 ℃.

In addition, as described later in detail, be provided with heater 15 and temperature switched that chamber pressure fan 14 drives predetermined time period and with warm braw supply to temperature switch in the chamber 3, with the quick-thawing pattern of freezing reserve quick-thawing.

Fig. 7 is the flow chart that the action of chamber 3 when low temperature side switches to high temperature side switched temperature in expression.If switch to high temperature side, then temperature switching chamber discharge air door 13 is closed in step #11.In step #12, switch the baffle plate 20c that returns air door 20 in the chamber by temperature peristome 20b is closed.

In step #13, heater 15 is connected.In step #14, increase during the rotating ratio low temperature side of temperature switching chamber pressure fan 14.As a result, switch air such peristome 20a that returns air door 20 via flow export 33b by temperature switching chamber shown in arrow F (with reference to Fig. 4) that chamber pressure fan 14 is sent from temperature.Thus, shown in the dotted line S of Fig. 6, temperature is switched air in the chamber 3 and is switched the chamber via temperature and return air door 20 and be guided to temperature and switch in the chamber pressure fan 14 and circulate.

In step #15, utilize the indoor temperature that temperature sensor 16 detected temperatures are switched chamber 3 whether to rise to set ceiling temperature.Switch under the situation that chamber 3 is not raised to ceiling temperature in temperature and to transfer to step #17.Switch chamber 3 in temperature and be raised under the situation of ceiling temperature, in step #16, stop heater 15.

In step #17, utilize the indoor temperature that temperature sensor 16 detected temperatures are switched chamber 3 whether to drop to set lower limit temperature.Switch under the situation that chamber 3 do not cooled to lower limit temperature in temperature and to transfer to step #19.Switch chamber 3 in temperature and cooled under the situation of lower limit temperature, in step #18, heater 15 is connected.Thus, carry out connection, the disconnection of heater 15 repeatedly, temperature is switched chamber 3 be maintained set temperature.Also the capacity that can change heater 15 comes holding temperature.

Thereby, temperature can be switched airtight outflow that prevents heating installation in chamber 3 and actuation temperature and switch chamber pressure fan 14 and the Temperature Distribution that the temperature of high temperature side is switched chamber 3 is become evenly, can prevent heater 15 and heater 15 peripheries distortion, catch fire, smolder etc.

In step #19, judge whether temperature switching chamber 3 is switched to the quick-thawing pattern.Switch under the situation that chamber 3 is not switched to the quick-thawing pattern in temperature and to transfer to step #20.Switch under the situation that chamber 3 is switched to the quick-thawing pattern in temperature and to transfer to step #22, access the processing of quick-thawing pattern shown in Figure 9 described later.

In step #20, judge whether temperature switching chamber 3 is switched to low temperature side.The situation that is not switched to low temperature side in temperature switching chamber 3 is transferred to step #15, repeated execution of steps #15～#20.Switch processing when accessing low temperature side under the situation that chamber 3 is switched to low temperature side and switching in temperature.

Fig. 8 is the flow chart that the action of chamber 3 when high temperature side switches to low temperature side switched temperature in expression.If be switched to low temperature side, then in step #31, heater 15 is disconnected.In step #32, temperature is switched chamber discharge air door 13 and open, utilize temperature to switch the baffle plate 20c that returns air door 20 in the chamber peristome 20b is opened.

In step #33, reduce during the rotating ratio high temperature side of temperature switching chamber pressure fan 14.As a result, import in the temperature switching chamber 3 via the cold air of temperature switching chamber pressure fan 14 cooler 17.

In step #34, utilize the indoor temperature that temperature sensor 16 detected temperatures are switched chamber 3 whether to drop to set lower limit temperature.Switch chamber 3 in temperature and do not cooled under the situation of lower limit temperature, transfer to step #36.Switch chamber 3 in temperature and cooled under the situation of lower limit temperature, temperature switching chamber discharge air door 13 is closed in step #35.At this moment, also temperature can be switched the peristome 20b that returns air door 20 in the chamber closes.

In step #36, utilize the indoor temperature that temperature sensor 16 detected temperatures are switched chamber 3 whether to rise to set ceiling temperature.Switch chamber 3 in temperature and be not raised under the situation of ceiling temperature, transfer to step #38.Switch chamber 3 in temperature and be raised under the situation of ceiling temperature, temperature is switched the chamber and is discharged air door 13 and temperature and switch the peristome 20b that returns air door 20 in the chamber and open in step #37.Thus, carry out the switching of air door repeatedly and temperature is switched chamber 3 be maintained set temperature.

In step #38, judge whether temperature switching chamber 3 is switched to the quick-thawing pattern.Judging that temperature switching chamber 3 is not switched under the situation of quick-thawing pattern, transfers to step #39.Judging that temperature switches chamber 3 and be switched under the situation of quick-thawing pattern, transfer to step #41, access the processing of quick-thawing pattern shown in Figure 9 described later.

In step #39, judge whether temperature switching chamber 3 is switched to high temperature side.The situation that is not switched to high temperature side in temperature switching chamber 3 is transferred to step #34, repeated execution of steps #34～#39.Switch processing when accessing above-mentioned high temperature side shown in Figure 7 under the situation that chamber 3 is switched to high temperature side and switching in temperature.

Fig. 9 is the flow chart that the action of chamber 3 when switching to the quick-thawing pattern switched temperature in expression.In step #51, utilize temperature sensor 16 detected temperatures to switch the indoor temperature of chamber 3.In step #52,, set the time of carrying out quick-thawing based on the testing result of temperature sensor 16.Promptly, switch the time set that will carry out quick-thawing under the situation that chamber 3 is freezing temperature in temperature and must grow when for example reserve weight is the load of 250g (if be 32 minutes), under the situation of the temperature that refrigerates, set to such an extent that lack (for example being 21 minutes under the similarity condition).Switch the time set that will carry out quick-thawing under the situation of chamber 3 for the temperature of high temperature side in temperature and get shorter (for example being 15 minutes under the similarity condition).

In addition, also can indicate thawing time by user's indication.The user can operate action button of being located on the door etc. and thawing time is chosen as for example 5 minutes, 10 minutes, 15 minutes etc.At this moment, in order to prevent to thaw, the set in advance time (for example 30 minutes) of long limit.

In step #53, temperature switching chamber is discharged air door 13 and is closed.In step #54, utilize temperature to switch the baffle plate 20c that returns air door 20 in the chamber peristome 20b is closed.In step #55, heater 15 is connected.In step #56, increase during the rotating ratio low temperature side of temperature switching chamber pressure fan 14.At this moment, switch the rotating speed of holding temperature switching chamber pressure fan 14 under the situation of indoor temperature that chamber 3 be a high temperature side in temperature.

As a result, switch air such peristome 20a that returns air door 20 via flow export 33b by temperature switching chamber shown in arrow F (with reference to Fig. 4) that chamber pressure fan 14 is sent from temperature.Thus, shown in the dotted line S of Fig. 6, temperature is switched air in the chamber 3 and is switched the chamber via temperature and return air door 20 and be guided to temperature and switch chamber pressure fan 14 and circulate, and warm braw is supplied to reserve.

In step #60, standby is up to the given time through setting in step #52.If passed through given time, the then end of thawing of reserve disconnects heater 15 in step #61, stops the supply of warm braw.In step #62, utilize temperature to switch chamber pressure fan 14 and make temperature switch air circulation given time in the chamber 3, in step #63, transfer to the hand-off process of above-mentioned low temperature side shown in Figure 8 then.Thus, reserve is for example being iced under the temperature that waits by stored refrigerated after thawing.

In step #61, also heater 15 can be stopped and transferring to the hand-off process of low temperature side at once.In addition, also can be when heater 15 is stopped temperature being switched chamber pressure fan 14 also stops and keeping predetermined time period.

According to present embodiment, owing to possess the low temperature side that can switch to the cooling preservation reserve and the temperature of the high temperature side of heated food insulation switched chamber 3, thus can provide do not need incubator etc. in addition and alleviated user's financial burden and do not need incubator etc. be provided with the place, can be to the higher refrigerator 1 of convenience of heated food insulation.

In addition, owing to be provided with the quick-thawing pattern that stops after warm braw sent, so reserve can be thawed apace and can prevent the overheated of reserve.Thereby, can further improve the convenience of refrigerator 1.In addition, owing to sending of warm braw stopped the stored refrigerated reserve in back when the quick-thawing pattern, the food after can preventing to thaw degenerates owing to placing.

And then, because detected temperatures is switched the indoor temperature of chamber 3 when the beginning of quick-thawing pattern, and change the dwell time of warm braw according to testing result, prevent reliably that so can set the dwell time of warm braw more meticulously thawing of reserve is not enough and overheated.

Then, the 2nd embodiment is described.Present embodiment and above-mentioned Fig. 1～the 1st embodiment shown in Figure 9 similarly constitutes, and switches the indoor temperature of chamber 3 and stop warm braw based on temperature when the quick-thawing pattern.Other parts and the 1st embodiment are same.

Figure 10 is the flow chart of action of quick-thawing pattern of the refrigerator 1 of expression present embodiment.In step #71, utilize temperature sensor 16 detected temperatures to switch the indoor temperature of chamber 3.In step #72, judge whether temperature switching chamber 3 is the indoor temperature of high temperature side.Switch under the situation of indoor temperature that chamber 3 is high temperature sides in temperature and to transfer to step #73.

In step #73, heater 15 stops.Temperature switching chamber discharge air door 13 is opened in step #74.Temperature is switched the peristome 20b that returns air door 20 in the chamber and is opened in step #75.Standby is up to the process given time in step #76.Thus, cold air flow in the temperature switching chamber 3 via temperature switching chamber pressure fan 14 from cooler 17.Temperature switching chamber 3 is cooled if pass through given time, then transfers to step #81.

Temperature is switched under the situation of indoor temperature that chamber 3 is low temperature sides and is transferred to step #77 in the judgement of step #72.In step #77, temperature switching chamber is discharged air door 13 and is closed.In step #78, the peristome 20b that air door 20 is returned in temperature switching chamber closes.In step #79, increase during the rotating ratio low temperature side of temperature switching chamber pressure fan 14.Thus, temperature is switched the air circulation in the chamber 3, transfers to step #81.

In step #81, heater 15 is connected.Thus, reserve is supplied with warm braw.In step #82, #83, utilize the detection of temperature sensor 16, carry out the indoor temperature of standby and reach both fixed temperatures up to temperature switching chamber 3.Reach both fixed temperatures if temperature is switched the indoor temperature of chamber 3, the then end of thawing of reserve stops heater 15 disconnections the supply of warm braw in step #84.In step #85, switch chamber pressure fan 14 by temperature and make temperature switch air circulation given time in the chamber 3, then, in step #86, transfer to the hand-off process of above-mentioned low temperature side shown in Figure 8.Thus, reserve is thawing afterwards by stored refrigerated.

According to present embodiment, because the indoor temperature based on temperature switching chamber 3 stops the supply of warm braw when the quick-thawing pattern, so can access the effect same with the 1st embodiment.

Then, the 3rd embodiment is described.Present embodiment and above-mentioned Fig. 1～the 1st embodiment shown in Figure 9 similarly constitutes, and is provided with the infrared ray sensor (not shown) that detected temperatures is switched the surface temperature of the reserve in the chamber 3.When the quick-thawing pattern, stop the supply of warm braw based on the testing result of infrared ray sensor.Other parts and the 1st embodiment are same.

Figure 11 is the flow chart of action of quick-thawing pattern of the refrigerator 1 of expression present embodiment.Because step #53～#56, #61～#63 and above-mentioned the 1st embodiment shown in Figure 9 are same, so omit explanation.In addition, the flow chart with respect to Fig. 9 has omitted step #51, #52.

Supply with warm braw if temperature is switched the reserve of chamber 3, then in step #58, #60,, carry out standby and reach both fixed temperatures up to the surface temperature of reserve by the detection of infrared ray sensor.If the surface temperature of reserve reaches both fixed temperatures, the then end of thawing of reserve disconnects heater 15 in step #61, stops the supply of warm braw.

According to present embodiment, because the surface temperature based on the reserve that is detected by infrared ray sensor stops the supply of warm braw in the quick-thawing pattern, so can access the effect same with the 1st embodiment.

In addition, in the 1st～the 3rd embodiment, also can in the flow export of vegetable compartment 5, air door be set.Thus,, this air door is closed, can prevent that the hot blast that switches chamber 3 from temperature from flowing back in the vegetable compartment 5 temperature being switched chamber 3 when high temperature side switches to low temperature side.In addition, temperature is being switched chamber 3 under the high temperature side situation that refrigerating chamber pressure fan 18 stops when low temperature side switches, refrigerating chamber air door 22 is closed.Thus, can prevent warm braw because temperature is switched the driving of chamber pressure fan 14 and flow backwards in refrigerating chamber 6 from refrigerating chamber air door 22.

In addition, utilize cooler 17 cooling refrigerating chamber 6 and refrigerating chambers 2, but the cooler of refrigerating chamber 2 and vegetable compartment 5 special uses also can be set in addition.At this moment, can utilize cooler 17 cooling refrigerating chambers 6 and temperature to switch chamber 3.

Industrial applicibility

According to the present invention, can in the refrigerator with temperature switching chamber, use.

Claims

1, a kind of refrigerator, be to possess the refrigerator that temperature is switched the chamber, described temperature switch low temperature side that the chamber can switch to indoor temperature the cooling preservation of carrying out reserve by cooling of being undertaken by cooler and the heating of being undertaken by heater with the high temperature side of heated food insulation and have the different a plurality of patterns of indoor temperature, this refrigerator is characterised in that to have the temperature switching chamber pressure fan that the said temperature that makes high temperature side switches indoor air circulation; Be provided with the driving of switching the chamber pressure fan by above-mentioned heater and said temperature with warm braw pass out to said temperature switch in the chamber, through stopping the sending of warm braw, quick-thawing pattern that the quick-thawing said temperature switches indoor reserve behind the given time.

2, refrigerator as claimed in claim 1 is characterized in that, above-mentioned quick-thawing pattern imports to said temperature with cold air and switches in the chamber stored refrigerated reserve after stopping the sending of warm braw.

3, refrigerator as claimed in claim 1 is characterized in that, after above-mentioned quick-thawing pattern begins, stops to send of warm braw when having passed through given time.

4, refrigerator as claimed in claim 3 is characterized in that, when above-mentioned quick-thawing pattern begins, detects the indoor temperature that said temperature switches the chamber, changes the dwell time of warm braw according to testing result.

5, refrigerator as claimed in claim 1 is characterized in that, after above-mentioned quick-thawing pattern began, the temperature of switching the chamber at said temperature stopped to send of warm braw when both reaching fixed temperature.

6, refrigerator as claimed in claim 1, it is characterized in that, be provided with and detect the infrared ray sensor that said temperature switches the surface temperature of indoor reserve, after above-mentioned quick-thawing pattern begins, when the surface temperature of reserve both reaches fixed temperature, stop to send of warm braw.