CN103134254A - Refrigerator-freezer - Google Patents

Abstract

The invention provides a refrigerator-freezer in which the whole of cold air in a cooler compartment is sent to a low temperature compartment, and in a case of cooling the high temperature compartment, the cold air in the low temperature compartment is sent to a high temperature compartment, so that even in the case of cooling the high temperature compartment, the efficiency of cooling in the low temperature compartment is not lowered. The refrigerator-freezer is partitioned by a thermal insulating partition wall 2 into a low temperature compartment 3 and a high temperature compartment 4 such that the high temperature compartment 4 is positioned above the low temperature compartment 3. The refrigerator-freezer includes a first fan 13 that sends the whole of cold air in a cooler compartment 9, positioned at the back of the low temperature compartment 3, to the low temperature compartment 3 and a second fan 17 that sends the cold air in the low temperature compartment 3 to a high-temperature-compartment duct 15 positioned at the back of the high temperature compartment 4.

Description

Fridge-freezer

Technical field

The present invention relates to a kind of fridge-freezer, refrigerating chamber is configured in the position than the top side of refrigerating chamber, and this fridge-freezer not only has the circulation pressure fan of cooling use in case, also has for the pressure fan to the cooling use of refrigerating chamber of refrigerating chamber transporting cold-air.

Background technology

jumbo, hot room (refrigerating chamber particularly, the chamber in the refrigerated storage temperature such as vegetable compartment zone) be configured in than low temperature chamber (refrigerating chamber, the chamber in the cryogenic temperature such as ice-making compartment zone) in top side's fridge-freezer, be provided with the cooler of the cooling use of air in case in the inboard of low temperature chamber, utilize circulating fan to make to be cooled the chilled circulating cold air of device cooling to carrying out in case, in the fridge-freezer of this mode, want to be cooled to volume large, the superiors of highly high hot room, it is difficult utilizing a circulating fan, therefore a kind of refrigerator has been proposed, by the fan that appends configuration hot room cooling use come that relative efficiency ground carries out hot room cooling (for example, with reference to patent documentation 1).

Patent documentation 1: No. 4667307 communique of Japan Patent (the 5th page, Fig. 3-4)

The wind path structure of patent documentation 1 disclosed refrigerator is, be divided into the cold air that flows into to low temperature chamber and the cold air that flows into to hot room near the outlet of the cooler at the back side that is arranged at low temperature chamber, Quilt with air conditioning that the circulating fan of cooling use blows out in case, the cold air that flow into the hot room side blows out in hot room under the effect of the fan of the cooling use of hot room of being located at the hot room back side.

But, in such structure, make its rotation if drive the fan of the cooling use of hot room when the cooling down high-temperature chamber, as shown in Figure 5, become form from the cooling use of hot room to the Quilt with air conditioning of low temperature chamber supply that distribute to, therefore there are the following problems point: the air quantity of the cold air that blows out to low temperature chamber reduces, and the cooling effectiveness of low temperature chamber reduces.

Summary of the invention

The present invention makes in order to solve above-mentioned problem, its purpose is to provide a kind of fridge-freezer, make whole the conveying to low temperature chamber of cold air of cooler chamber, when the cooling down high-temperature chamber, the cold air of low temperature chamber is carried to hot room, the cooling effectiveness of low temperature chamber can not reduce yet when the cooling down high-temperature chamber thus.

Fridge-freezer of the present invention is spaced apart by the insulated room next door, below be provided with low temperature chamber, be provided with up hot room, be provided with in this fridge-freezer: the 1st pressure fan, be arranged at the inboard of above-mentioned low temperature chamber, with whole the conveying to above-mentioned low temperature chamber of cold air of cooler chamber; The 2nd pressure fan is used for to carry the cold air of above-mentioned low temperature chamber at the hot room pipeline of the inboard of above-mentioned hot room setting.

According to the present invention, the cold air of cooler chamber is all carried to low temperature chamber under the effect of the 1st pressure fan, utilize the 2nd pressure fan that the cold air of low temperature chamber is carried to hot room when the cooling down high-temperature chamber, therefore the cooling effectiveness of low temperature chamber can not reduce yet when the cooling down high-temperature chamber.

Description of drawings

Fig. 1 means the diagrammatic illustration figure of the state after fridge-freezer door is unloaded of embodiments of the present invention 1.

Fig. 2 is the A-A cutaway view that has omitted a part of Fig. 1.

Fig. 3 is that the interior cold airflow of fridge-freezer of the present invention is through path profile.

Fig. 4 is the key diagram of major part of the fridge-freezer of embodiments of the present invention 2.

Fig. 5 is that the cold airflow of fridge-freezer in the past is through path profile.

The specific embodiment

［ embodiment 1 ］

Fig. 1 means the diagrammatic illustration figure of the state after fridge-freezer door is unloaded of embodiments of the present invention 1, and Fig. 2 is the A-A cutaway view that has omitted a part of Fig. 1.

In two figure, Reference numeral 1 is the heat insulating box that consists of the refrigerator main body of front surface opening, is made of following part: the outer container 1a that is consisted of by steel plate, the interior case 1b that is consisted of by resin forming product and be filled in outer container 1a and interior case 1b between thermal insulation barriers 1c.

Reference numeral 2 is the such low temperature chamber 3 of for example refrigerating chamber and the refrigerating chamber such isolated insulated room of hot room 4 next door, and low temperature chamber 3 is divided into two chambers by low temperature chamber spaced walls 5.In addition, also can omit this low temperature chamber spaced walls 5, low temperature chamber 3 is made of a chamber.Reference numeral 6 is the low temperature chamber door for the front surface peristome that opens and closes low temperature chamber 3, and Reference numeral 7 is the hot room door for the front surface peristome that opens and closes hot room 4.

Reference numeral 8 is the inboard thermal wall of low temperature chamber of the inboard that is located at low temperature chamber 3, is formed with cooler chamber 9 between the interior case 1b of itself and heat insulating box 1, is provided with cooler 10 in this cooler chamber 9.Reference numeral 11 blows out pipeline for what the top that makes low temperature chamber 3 was communicated with cooler chamber 9, Reference numeral 12 Returning pipe that to be the bottom that makes low temperature chamber 3 be communicated with cooler chamber 9.Reference numeral 13 is for being arranged on cooling pressure fan in the case that blows out in pipeline 11 (below, be called the 1st pressure fan).

Reference numeral 14 is the inboard thermal wall of hot room of the inboard that is located at hot room 4, is formed with hot room pipeline 15 between the interior case 1b of itself and heat insulating box 1.

Reference numeral 16 is for being located at the cold air import pipe in insulated room next door 2, and an end forms suction inlet 16a at low temperature chamber 3 openings, and the other end forms blow-off outlet 16b at hot room pipeline 15 openings.

Reference numeral 17 is the cooling pressure fan of hot room that arranges towards the blow-off outlet 16b side of hot room pipeline 15 (below, be called the 2nd pressure fan) in cold air import pipe 16.In addition, in Fig. 1, Reference numeral 18 is for being located at the low temperature chamber cold air blow-off outlet that low temperature chamber 3 is communicated with cooler chamber 9 of the inboard thermal wall 8 of low temperature chamber, and Reference numeral 19 is the hot room cold air blow-off outlet that hot room 4 is communicated with hot room pipeline 15 of being located at hot room inboard thermal wall 14.

Next, the cooling effect of the fridge-freezer that consists of as described above is described.

Be cooled air (cold air) in the chilled cooler of device 10 chamber 9 under the effect of the 1st pressure fan 13 all by from blowing out pipeline 11 and low temperature chamber cold air blow-off outlet 18 is blown out to low temperature chamber 3, and low temperature chamber 3 is interior cooling, and turn back to cooler chamber 9 from Returning pipe 12, under the effect of cooler 10 by again cooling.

In addition, carry out in to hot room 4 when cooling, drive the 2nd pressure fan 17 and make its rotation.Thus, Quilt with air conditioning in low temperature chamber 3 is drawn into cold air import pipe 16 from suction inlet 16a, and be transported to hot room pipeline 15 from blow-off outlet 16b, blow out and hot room 4 is interior cooling from the hot room cold air blow-off outlet 19 of being located at the inboard thermal wall 14 of hot room, and turn back to cooler chamber 9 from hot room Returning pipe (not shown).

Like this, in the present embodiment, as shown in Figure 3, the minimum cold air of temperature that is cooled in cooler chamber 9 all is transferred under the effect of the 1st pressure fan 13 to low temperature chamber 3, is used for the cooling of low temperature chamber 3.And, for cooling down high-temperature chamber 4, utilizing the cold air the environment of the low temperature chamber 3 that transports from cold air import pipe 16, it is higher that this cold air and the cold air that just blows out from the 1st pressure fan 13 are compared temperature, but be enough to and will be cooled to target temperature in hot room 4.

In addition, near the of the suction inlet 16a of cold air import pipe 16 is low pressure, therefore, the position that easily becomes high temperature by this suction inlet 16a being located at low temperature chamber 3 (for example, near low temperature chamber door 6), can be blown out to the cold air of low temperature chamber 3 to suction inlet 16a guiding utilization the 1st pressure fan 13 of cold air import pipe 16, can improve the non-uniform temperature in low temperature chamber 3.

In addition, due to the wind path structure that becomes cold air in cooler chamber 9 and all be transported to low temperature chamber 3, therefore, carry when cooling down high-temperature chamber 4 to the air quantity of the cold air of low temperature chamber 3 and can not reduce, the temperature in low temperature chamber 3 can be risen be suppressed to minimum.

［ embodiment 2 ］

Fig. 4 is the key diagram of major part of the fridge-freezer of embodiments of the present invention 2.In addition, to the part mark identical Reference numeral identical with embodiment 1.

Present embodiment relates to the fridge-freezer that has low temperature chamber spaced walls 5 shown in Figure 1 in low temperature chamber 3, and the Quilt with air conditioning in low temperature chamber 3 is directed to hot room 4, and cold air import pipe 20 is located at low temperature chamber spaced walls 5.And, at one end being provided with the suction inlet 20a at low temperature chamber 3 openings, the other end connects insulated room next door 2, is provided with the blow-off outlet 20b at hot room pipeline 15 openings, is provided with the 2nd pressure fan 17 on blow-off outlet 20b.

Also can access in the present embodiment the effect roughly the same with the situation of embodiment 1, and, due to the major part of cold air import pipe 20 is located at low temperature chamber spaced walls 5, so the thickness of the thermal insulation layer in the insulated room next door 2 of interval low temperature chamber 3 and hot room 4 does not have attenuation.

In addition, the chamber of low temperature chamber spaced walls 5 both sides of low temperature chamber 3 is identical temperature province, does not therefore need the thermal insulation construction between two Room, and perhaps thermal insulation construction can be very thin, do not need to consider the heat insulation impact that reduces the temperature in case, can fully guarantee to lead to the pipeline area of hot room 4.

In addition, although not shown, according to the Temperature Distribution of low temperature chamber 3, also can the cold air import pipe 16 of embodiment 1 and the cold air import pipe 20 of present embodiment be set on the two in insulated room next door 2 and low temperature chamber spaced walls 5.

［ embodiment 3 ］

In the present embodiment, in the fridge-freezer of embodiment 1 or 2, the upstream side being arranged at cold air import pipe 16 on insulated room next door 2 or low temperature chamber spaced walls 5,20 the 2nd pressure fan 17 is provided with for the air door 21(that opens and closes wind path with reference to Fig. 2).

According to present embodiment, by closing air door 21, can block reliably cold air from low temperature chamber 3 to hot room 4 flow, therefore can carry out more reliably the temperature adjustment of low temperature chamber 3.

Description of reference numerals

1 heat insulating box, the 1a outer container, case in 1b, the 1c thermal insulation barriers, 2 insulated room next doors, 3 low temperature chambers, 4 hot rooms, 5 low temperature chamber spaced walls, 6 low temperature chamber doors, 7 hot room doors, the inboard thermal wall of 8 low temperature chambers, 9 cooler chambers, 10 coolers, 11 blow out pipeline, 12 Returning pipes, cooling pressure fan (the 1st pressure fan) in 13 casees, the inboard thermal wall of 14 hot rooms, 15 hot room pipelines, 16, 20 cold air import pipes, 16a, the 20a suction inlet, 16b, the 20b blow-off outlet, the 17 cooling pressure fans of hot room (the 2nd pressure fan), 18 low temperature chamber cold air blow-off outlets, 19 hot room cold air blow-off outlets, 21 air doors.

Claims (9)

1. fridge-freezer, this fridge-freezer is spaced apart by the insulated room next door, below be provided with low temperature chamber, be provided with up hot room,

It is characterized in that, be provided with:

The cold air of cooler chamber that the 1st pressure fan, the 1st pressure fan will be arranged at the inboard of above-mentioned low temperature chamber all is transported to above-mentioned low temperature chamber;

The 2nd pressure fan, the 2nd pressure fan are carried the cold air of above-mentioned low temperature chamber to the hot room pipeline of the inboard that is arranged at above-mentioned hot room.

2. fridge-freezer according to claim 1, is characterized in that,

Be provided with the cold air import pipe on above-mentioned low temperature chamber and the isolated above-mentioned insulated room of hot room next door, this cold air import pipe have the suction inlet of above-mentioned low temperature chamber opening and with above-mentioned hot room pipeline communication, be provided with above-mentioned the 2nd pressure fan in this cold air import pipe on the blow-off outlet of above-mentioned hot room pipeline.

3. fridge-freezer according to claim 1, is characterized in that,

Be provided with in above-mentioned low temperature chamber this isolated low temperature chamber spaced walls in low temperature chamber left and right, be provided with the cold air import pipe on this low temperature chamber spaced walls, this cold air import pipe have the suction inlet of above-mentioned low temperature chamber opening and with above-mentioned hot room pipeline communication, be provided with above-mentioned the 2nd pressure fan in this cold air import pipe on the blow-off outlet of above-mentioned hot room pipeline.

4. fridge-freezer according to claim 1, is characterized in that,

Be provided with the cold air import pipe of the claims 2 and claim 3 in above-mentioned insulated room next door and low temperature chamber spaced walls on the two, be provided with above-mentioned the 2nd pressure fan on the blow-off outlet of this cold air import pipe.

5. according to claim 2 or fridge-freezer claimed in claim 3, it is characterized in that,

The suction inlet of above-mentioned cold air import pipe is located at above-mentioned low temperature chamber the low temperature chamber door near.

6. according to claim 2 or fridge-freezer claimed in claim 3, it is characterized in that,

Upstream side at the 2nd pressure fan of above-mentioned cold air import pipe is provided with air door.

7. a fridge-freezer, is characterized in that,

Have heat insulating box, this heat insulating box is provided with low temperature chamber below the insulated room next door, is provided with hot room above this insulated room next door,

Be provided with the cooler chamber, this cooler chamber has cooler between the inboard thermal wall of low temperature chamber of the inboard of being located at above-mentioned low temperature chamber and above-mentioned heat insulating box, be provided with on the inboard thermal wall of above-mentioned low temperature chamber make that above-mentioned low temperature chamber is communicated with the cooler chamber blow out pipeline and Returning pipe, be provided with the 1st pressure fan above-mentioned in blowing out pipeline

Be provided with the cold air import pipe, this cold air import pipe has suction inlet at above-mentioned low temperature chamber opening in above-mentioned insulated room next door or with an end of the isolated low temperature chamber spaced walls in above-mentioned low temperature chamber left and right, have blow-off outlet at the hot room pipeline tapping of the inboard of being located at above-mentioned hot room at the other end, be provided with the 2nd pressure fan in the blow-off outlet side of this cold air import pipe.

8. fridge-freezer according to claim 7, is characterized in that,

The suction inlet of above-mentioned cold air import pipe is located at above-mentioned low temperature chamber the low temperature chamber door near.

9. fridge-freezer according to claim 7, is characterized in that,

Upstream side at the 2nd pressure fan of above-mentioned cold air import pipe is provided with air door.

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