CN1109962A

CN1109962A - Refrigerator

Info

Publication number: CN1109962A
Application number: CN 95103130
Authority: CN
Inventors: 高山清
Original assignee: Matsushita Refrigeration Co
Current assignee: Panasonic Holdings Corp
Priority date: 1994-03-17
Filing date: 1995-03-16
Publication date: 1995-10-11
Anticipated expiration: 2015-03-16
Also published as: JPH07253268A; CN1111703C

Abstract

The invention relates to a refrigerator, which at least is provided with a refrigerating thermostatic chamber and a cold storage thermostatic chamber, a cold air supplying device is arranged at the rear part of the refrigerating chamber, the cold storage chamber is arranged on the upper most layer, through dividing the cold air supplying channel in the cold storage chamber into two parts of the cod air ascending way and the cold air inverting descending way after the cold air ascends, and a blow-out hole used for supplying the cold air for the refrigerating chamber is arranged at the upper most part at the final position of the way, the invention can provide a refrigerator which can not occur the phenomenon that the cold air at the upper front part of the cold storage chamber and at the upper part of the door rack of the cold storage chamber is less, and the temperature distribution in the refrigerating chamber is stable.

Description

Refrigerator

The present invention relates to freezing-cooling storeroom is the improvement of the refrigerating chamber cool-air feed channel design in the refrigerator.

In recent years, in the refrigerator, consider, become main flow what refrigerating chamber was located at the highly the sort of pattern that is easy to come in and go out from the aspect of using frequent degree.

As traditional refrigerator, have a kind ofly to disclose shown in 1993 No. 52460 communique as Japanese patent of invention.Fig. 4, Fig. 5, Fig. 6 show a kind of structure of conventional refrigerator, and wherein Fig. 4 is the cutaway view of conventional refrigerator, and Fig. 5 is the front view of conventional refrigerator cool-air feed passage demarcation strip, and Fig. 6 is the front view of conventional refrigerator cool-air feed passage.Followingly this traditional refrigerator is described with reference to accompanying drawing.

In Fig. 4, Fig. 5, Fig. 6, the 1st, refrigerator is provided with 3 thermostatic chambers, and the upper strata is a refrigerating chamber 2, and the middle level is a refrigerating chamber 3, and lower floor is fruit and vegetable chamber 4.The rear portion of refrigerating chamber 3 is provided with the cool-air supplier of being made up of with fan motor 6 and balancing gate pit 7 evaporimeter 5, circulating cold air.Be provided with demarcation strip 8d at the rear portion of refrigerating chamber, form cool-air feed passage 8.Be provided with the control air door 9 of refrigerating chamber 2 in the bottom of cool-air feed passage 8, adjust the amount of the cold air that imports cool-air feed passage 8.

Cool-air feed passage 8 has the homeward journey 8b of the cold air counter-rotating decline toward road 8a and after rising that the cold air of the importing of making rises, and at homeward journey 8b place, on the face relative with refrigerating chamber 2, is provided with a plurality of hole 8c that blow out.Blow out hole 8c cool-air feed in refrigerating chamber 2 from this.In addition, bottom, sidepiece and top, fruit and vegetable chamber at refrigerating chamber 3 are respectively equipped with cold air backward

channel

10,11,12.

Cold air with evaporimeter 5 coolings is upwards picked up with the rotation of fan motor 6 by circulating cold air, and pressure rises and is imported into balancing gate pit 7.Be imported into difference dispensing refrigerating chamber side and the refrigerating chamber side of the cold air of balancing gate pit 7 according to the loop resistance of refrigerating chamber side loop and refrigerating chamber side loop.

Be supplied to the cold air of refrigerating chamber side after freezing indoor circulation, to return cold air backward channel 10 from balancing gate pit 7, get back to the bottom of evaporimeter 5.

On the other hand, the air door 9 of 7 cold air that are supplied to the refrigerating chamber side by refrigerating chamber 2 rear portions is imported into cool-air feed passage 8 from the balancing gate pit.The cold air that is imported into this cool-air feed passage 8 is rising in the 8a of road, descends in the 8b of homeward journey after rising to the topmost of refrigerating chamber 2.At this moment, cold air is supplied to each shelf layer in the refrigerating chamber 2 from being located at the homeward journey 8b hole 8c that blows out everywhere.Cold air in refrigerating chamber 2 after the circulation returns cold air backward channel 11, is imported into fruit and vegetable chamber 4.

Return cold air backward channel 12 after the cold air that is imported into fruit and vegetable chamber 4 circulates in fruit and vegetable chamber 4, get back to the bottom of evaporimeter 5.

As mentioned above, cool off again,, thereby make each thermostatic chamber keep the temperature of regulation in each constant temperature indoor circulation of refrigerator by the cold air that makes Returning evaporimeter 5 bottoms.

At this moment, the freezer temperature of directly accepting to be imported into the cold air in the balancing gate pit 7 is minimum, and the temperature that is supplied the fruit and vegetable chamber 4 that is circulated throughout the cold air behind the refrigerating chamber 2 is higher slightly than refrigerating chamber 2.

But if adopt said structure, because only place, the homeward journey in cool-air feed passage 8 is provided with a plurality of hole 8c that blow out, so there is following shortcoming: blow out cold air be directed downwards and powerlessness does not promptly have imposing manner, the cold air that arrives refrigerating chamber upper forepart and refrigerating-chamber door shelf top is very few and the cold air refrigerating chamber bottom is too much, and the Temperature Distribution in the refrigerating chamber is very poor.

The objective of the invention is to, the refrigerator of the Temperature Distribution all-the-time stable in a kind of refrigerating chamber is provided.

In order to address the above problem, refrigerator provided by the invention, at least have refrigeration, freezing two thermostatic chambers, establish cool-air supplier at the refrigerating chamber rear portion, establish refrigerating chamber in the superiors, it is characterized in that the cool-air feed passage of refrigerating chamber is divided into the homeward journey of the cold air counter-rotating decline toward the road and after rising that cold air rises, and becoming the hole that blows out that in refrigerating chamber cool-air feed is set toward the topmost of final position, road.

The present invention is by said structure, and the Quilt with air conditioning that the cool-air supplier of being made up of with fan motor and balancing gate pit evaporimeter, circulating cold air is supplied with is distributed to refrigerating chamber side and refrigerating chamber side.The cold air of cool-air feed passage that is imported into refrigerating chamber is because be provided with blow-off outlet at the topmost that becomes toward the final position, road, so can in refrigerating chamber, supply with the cold air of imposing manner, very few and the too much phenomenon of refrigerating chamber bottom cold air of refrigerating chamber upper forepart and refrigerating-chamber door shelf top cold air can not occur, the Temperature Distribution in the refrigerating chamber is stable.

Below in conjunction with description of drawings one embodiment of the present of invention.

In the accompanying drawing:

Fig. 1 is the cutaway view of refrigerator for one embodiment of the invention.

Fig. 2 is the front view that the cool-air feed passage demarcation strip in one embodiment of the invention is shown.

Fig. 3 is the front view of the cool-air feed passage in one embodiment of the invention.

Fig. 4 is the cutaway view of conventional refrigerator.

Fig. 5 is the front view that the demarcation strip of traditional cool-air feed passage is shown.

Fig. 6 is the front view of traditional cool-air feed passage.

Fig. 1-3 shows the refrigerator of one embodiment of the invention, and the structure identical with conventional refrigerator put on identical symbol and detailed among the figure.In Fig. 1-3, the 1st, refrigerator is provided with 3 thermostatic chambers, and the upper strata is a refrigerating chamber 2, and the middle level is a refrigerating chamber 3, and lower floor is fruit and vegetable chamber 4.Be provided with the cool-air supplier of forming with fan motor 6 and balancing gate pit 7 by evaporimeter 5, circulating cold air at the rear portion of refrigerating chamber 3.

Establish demarcation strip 13e at the refrigerating chamber rear portion, be provided with cool-air feed passage 13.The control that is provided with refrigerating chamber 2 in the bottom of cool-air feed passage 13 is adjusted the air conditioning quantity that imports cool-air feed passage 13 with air door 9.Cool-air feed passage 13 have that the cold air that is imported into rises within it toward road 13a and the homeward journey 13b that reverses within it and descend of the cold air after rising, at the topmost that becomes toward 13a final position, road, on the face relative, be provided with a plurality of hole 13c that blow out with refrigerating chamber 2 inside.

At homeward journey 13b place, on the face relative, be provided with a plurality of hole 13d that blow out with refrigerating chamber 2 inside.Blow out hole 13c, 13d cool-air feed in refrigerating chamber 2 from this.In addition, be respectively equipped with cold air backward

channel

10,11,12 at bottom, sidepiece and the top, fruit and vegetable chamber of refrigerating chamber 3.

Cold air through evaporimeter 5 coolings is upwards picked up by the rotation of circulating cold air with fan motor 6, and pressure rises and is imported into balancing gate pit 7.The cold air that is imported into balancing gate pit 7 utilize refrigerating chamber side cold air loop and refrigerating chamber side cold air loop the loop resistance difference and be assigned to refrigerating chamber side and refrigerating chamber side.

Return cold air backward channel 10 be supplied to the cold air of refrigerating chamber side in refrigerating chamber 3, to circulate from balancing gate pit 7 after, get back to the bottom of evaporimeter 5.

On the other hand, the air door 9 of 7 cold air that are supplied to the refrigerating chamber side by refrigerating chamber 2 rear portions is imported into cool-air feed passage 13 from the balancing gate pit.This cold air that is imported into cool-air feed passage 13 is rising in the 13a of road, after rising to the topmost of refrigerating chamber 2, a part is supplied in the refrigerating chamber 2 from blowing out hole 13c, when remaining part descends in the 13b of homeward journey, is supplied to and respectively puts layer in the refrigerating chamber 2 from blowing out hole 13d.After returning cold air backward channel 11, cold air in refrigerating chamber 2 after the circulation is imported into fruit and vegetable chamber 4.

As mentioned above, repeat cooling again, in refrigerator, circulate, make each thermostatic chamber keep the temperature of regulation by the cold air that will turn back to evaporimeter 5 bottoms.

At this moment, the freezer temperature of cold air of directly accepting to be imported into balancing gate pit 7 is minimum, and the fruit and vegetable chamber 4 that is received in the cold air after refrigerating chamber 2 circulations is higher slightly than refrigerating chamber 2 temperature.

As mentioned above, refrigerator of the present invention is provided with refrigeration at least, freezing two thermostatic chambers, be provided with cool-air supplier at the refrigerating chamber rear portion, establish refrigerating chamber in the superiors, because the cool-air feed passage of refrigerating chamber is divided into homeward journey two parts of the cold air counter-rotating decline toward the road and after rising of cold air rising, and becoming the hole that blows out that in refrigerating chamber cool-air feed is set toward the topmost of final position, road, so can in refrigerating chamber, supply with the cold air of imposing manner, the refrigerating chamber upper forepart can not take place and refrigerating-chamber door shelf top cold air is very few, the too much situation of refrigerating chamber bottom cold air, the refrigeration indoor temperature distribution is stable.

Claims

1, a kind of refrigerator, at least have freezing, two thermostatic chambers of refrigeration, establish cool-air supplier at the refrigerating chamber rear portion, establish refrigerating chamber in the superiors, it is characterized in that, the cool-air feed passage of refrigerating chamber is divided into two parts in homeward journey of the cold air counter-rotating decline toward the road and after rising that cold air rises, and is becoming the hole that blows out that in refrigerating chamber cool-air feed is set toward the topmost of final position, road.