CN100340830C

CN100340830C - Cool-air supplying structure of refrigerator

Info

Publication number: CN100340830C
Application number: CNB03119785XA
Authority: CN
Inventors: 李光浩
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: Taizhou LG Electronics Refrigeration Co Ltd
Priority date: 2003-03-12
Filing date: 2003-03-12
Publication date: 2007-10-03
Anticipated expiration: 2023-03-12
Also published as: CN1530608A

Abstract

The present invention relates to a cold-air supplying structure of a refrigerator. When a refrigerating-chamber door is opened in the present invention, cold air is not discharged towards outside through a cold air outlet in a cold air conduit, and thus, a cold-air partition panel of which one side is provided with a hinge is arranged on the front end of the cold air conduit arranged on the upper end of a refrigerating chamber. When the refrigerating-chamber door is closed, the cold air outlet is communicated, the cold-air partition panel is rotated, and upper end parts of door conduits arranged on both sides of the refrigerating-chamber door by a push rod of the cold air outlet are opened. The cold-air partition panel is rotated by the personal elastic force of a flexible assembly arranged on the hinge. When a refrigerator door is opened, cold air in a cold-air guiding pipe can also be prevented from being discharged towards the outside according to the present invention.

Description

The cold-air supply sturcture of refrigerator

Technical field

The invention belongs to the refrigerator field, particularly relate to a kind of switching that has according to door, optionally to the refrigerator cold-air supply sturcture of reveal cool-air feed.

Background technology

In present known refrigerator, as shown in the figure:

Form by heat-barrier material refrigerating chamber 2 and the refrigerating chamber of being distinguished by space bar 43 arranged in refrigerator body 1 inside of wall body.Each personal fixed temperature keeping of refrigerating chamber 2 and refrigerating chamber 3 stores thing, selectively is communicated with by the door 2 ', 3 ' and the outside that are located at the place ahead.And refrigerating chamber 2 and refrigerating chamber possess for 3 li separately places the shelf 5 that stores thing.

In order to keep refrigerating chamber 2 and refrigerating chamber 3 temperature inside with institute's fixed temperature, get sustainable supply cold air.For these, in the special space of distinguishing, refrigerating chamber 2 rears, the evaporimeter 6 that generates cold air is set.For the cold air of 6 li generations of evaporimeter to refrigerating

chamber

2 and 3 li supplies of refrigerating chamber, use blowing fan 7.A cold air part of being carried by blowing fan 7 supplies to refrigerating chamber 2, and another part supplies to refrigerating chamber 3.

For to 3 li cool-air feeds of refrigerating chamber, be formed with refrigerating chamber refrigerator pipe 8 in body 1 inside at refrigerating chamber 3 rears here, to refrigerating chamber below guiding cold air.8 li formation of refrigerating chamber refrigerator pipe are to a plurality of outlets 9 of each opposite position discharge cold air above the shelf 5 of 3 li of refrigerating chambers.

For circulating frozen chamber 2 and refrigerating chamber 3 inside, the air that temperature uprises relatively converts cold air again to, possesses on space bar 4 to the loop 10 of giving back of 6 li backflows of evaporimeter.Give back loop 10 1 sides and be communicated with refrigerating chamber 2 and refrigerating chamber 3 separately, opposite side and evaporimeter 6 are communicated with.

The air coolant tube 21 that separates guiding cold air in oriented refrigerating chamber 3 the place aheads from refrigerating chamber refrigerator pipe 8.Air coolant tube 21 possesses in refrigerating chamber 3 upper ends, guides cold air by a plurality of cold air outlets 23 that are formed on door 3 ' side to the door conduit 31 that is arranged on refrigerating-chamber door 3 ' two sides.

Door conduit 31 upper and lower settings are in 33 ' of refrigerating chambers, central authorities.Door conduit upside forms a plurality of cold air inlets 33 of introducing cold air from air coolant tube 21.The cold air of introducing to inside flows downward, and inner and door basket 35, a plurality of cold air taps 37 of discharging cold air are formed on the conduit outer peripheral face to refrigerating chamber 3.And under the state of 33 ' of closing cold rooms, cold air inlet 33 is connected communicating door conduit 31 and air coolant tube 21 inside with the cold air outlet 23 of air coolant tube 21.

Be sent to 2 li of refrigerating chamber 3 and refrigerating chambers at the cold air of 6 li generations of evaporimeter separately by blowing fan 7.Circulation refrigerating chamber 3 and refrigerating chamber 2, the gas that temperature uprises is given back to evaporimeter 6 by giving back loop 10.After 6 li in evaporimeter carried out heat exchange, the cold air of temperature step-down was by blowing fan 7 circulation refrigerator inside.

At this moment, cold air passes through refrigerating chamber refrigerator pipe 8 to 3 li guiding of refrigerating chamber, and by being formed on and shelf 5 corresponding locational outlets 9 discharges separately.

And air coolant tube 21 is communicated with the door conduit 31 that is arranged on door 3 ' two sides, and a part of cold air that therefore supplies to 8 li of refrigerating chamber refrigerator pipes supplies to 31 li in a conduit by air coolant tube 21.The cold air that supplies to 31 li in a conduit supplies to refrigerating chamber the place ahead by cold air tap 37.According to these structures, the while is to rear and the place ahead cool-air feed of refrigerating chamber 3.

But, following problem is arranged in the above-mentioned technology:

Supplying to 3 li cold air of refrigerating chamber is to be introduced by the cold air inlet 33 of door conduit 31 by the cold air outlet 23 of air coolant tube 21.But under the state of opening 33 ' of refrigerating chambers, cold air outlet 23 and cold air inlet 33 separate, and therefore the cold air of discharging by cold air outlet 23 can not enter cold air inlet 33, discharges to the outside.

Therefore, the user is in order to put into, take out the storage thing in refrigerating chamber 3 inside, and when opening door 3 ', cold air continues to discharge to the outside by the cold air outlet 23 of air coolant tube 21.The result subdues the efficient of refrigerator, and must additionally drive refrigerator.So the big problem of power consumption is arranged.

Summary of the invention

The present invention provides a kind of and is opening the state of refrigerating-chamber door for solving the problem that exists in the above-mentioned technology, and the cold air of supplying with to reveal can directly not discharged the cold-air supply sturcture outside the refrigerator body.

The technical scheme that the present invention takes for the problem that exists in the above-mentioned technology of solution is:

Refrigerator cold-air supply sturcture of the present invention is by the air coolant tube of the two part cold air of supplying with to refrigerating chamber being guided into the refrigerating chamber reveal; Be communicated with on refrigerating-chamber door door conduit to refrigerating chamber internal feed cold air with air coolant tube; And the switching of interlock refrigerating-chamber door, can open and close air coolant tube, when opening, do not allow cold air form by the cold air partition apparatus that air coolant tube runs off.The cold air partition apparatus is by the outlet that is located at air coolant tube, is the rotating cold air partition panel in center with the hinge axis, applies the elastomeric element of elastic force for to the closing cool air duct direction cold air partition panel; The elastic force that overcomes elastomeric element can lift the push rod composition of cold air partition panel.Push rod pushes the cold air partition panel in the closing cold room door, open the air coolant tube outlet, and air coolant tube is communicated with the door conduit.

Advantage and good effect that the present invention has are: refrigerator cold-air supply sturcture of the present invention has the cold air partition apparatus that prevents that cold air from discharging, therefore cold air partition panel closing cool air outlet when opening refrigerating-chamber door, improved refrigerator cool-air feed efficient, reduced the number of starts of refrigerator, so power savings is remarkable.

Description of drawings

Fig. 1 is the sectional drawing that diagram cold air circulates in the refrigerator according to background technology.

Fig. 2 is opening under the door of refrigerator state, shows the part sectional drawing according to the feasible embodiment formation of refrigerator cold-air supply sturcture of the present invention.

Fig. 3 is closing under the door of refrigerator state, shows the part sectional drawing of the refrigerator cold-air supply sturcture that constitutes the embodiment of the invention.

Explanation for figure major part symbol:

3: refrigerating chamber, 3 ': refrigerating-chamber door,

21: air coolant tube, 23: cold air outlet,

31: door conduit, 33: door cold air inlet,

41: cold air partition panel, 43: support bar,

45: hinge, 47: elastomeric element,

55: push rod

The specific embodiment

For further understanding content of the present invention, exemplify following examples now, and conjunction with figs. is described in detail as follows:

Fig. 2 is shown in to open under the door of refrigerator state, according to the part sectional drawing of refrigerator cold-air supply sturcture of the present invention.Fig. 3 is closing under the door of refrigerator state, shows the part sectional drawing of the refrigerator cold-air supply sturcture that constitutes the embodiment of the invention.

As shown in the figure, the upper end of refrigerating chamber 3 is provided with the air coolant tube 21 of the cold air at rear guiding door 3 ' side, and the front end of air coolant tube 21 has been formed obliquely a plurality of cold air outlets 23.

The upside of cold air outlet 23 has the support bar 43 that forms support cold air partition panel 41; Be formed with hinge 45 on the support bar 43; Be provided with elastomeric element 47 as wind spring along the outer peripheral face of hinge 45, control support bar 43 is the cold air partition panel 41 of center rotation.

Be connected with on the hinge 45 and open and close the cold air partition panel 41 that forms cold air outlet 23.Cold air partition panel 41 is the bodies 51 by direct contact cold air outlet 23; Be formed on body 51 1 sides, the connecting portion 53 that is connected with hinge 45 is formed.

A plurality of cold air inlets 33 that import air coolant tube 21 cold air are formed slopely in door conduit 31 upper ends.Door cold air inlet 33 is corresponding with cold air outlet 23.

Door cold air enters the mouth, and the useful institute in 33 upper ends set a distance horizontal direction forms and the push rod 55 of control cold air partition panel 41.If closing cold room door 3 ', push rod 55 begins cold air partition panel 41 to lift from connecting portion 53, allows cold air partition panel 41 form horizontal direction.

Describe the effect of the cool-air supplier of refrigerator of the present invention in detail with said structure with reference to Fig. 2 and Fig. 3.Here mainly illustrate to refrigerating chamber reveal cool-air feed situation.

At first, check refrigerating-chamber door 3 ' closing state with reference to Fig. 3.The enter the mouth push rod 55 of 33 upsides of the door cold air that is formed on a conduit 31 lifts the cold air partition panel 41 that is arranged on the air coolant tube 21, forms horizontal direction.

Therefore, open cold air outlet 23, and be close to the cold air outlet 23 of the air coolant tube 21 that is arranged on 3 li of refrigerating chambers and the cold air inlet 33 of door conduit 31 mutually, be communicated with air coolant tube 21 and door conduit 31.

At this moment, the cold air of air coolant tube 21 inside enters into a conduit 31 inside by door cold air inlet 33.Cold air flows downwards along door conduit 31, arranges to refrigerator inside by the cold air tap 37 that is shown in Fig. 1.

Check the situation that refrigerating-chamber door 3 ' is opened with reference to Fig. 2, owing to open door 3,, push rod 55 is forwards extracted out from the cold air outlet 23 of air coolant tube 21.Therefore, the cold air partition panel 41 that is supported by push rod 55 horizontal directions be middle mind-set clockwise direction rotation by the restoring force of elastomeric element 47 with hinge 45.

So the cold air outlet 23 of the disconnected plate 41 airtight air coolant tubes 21 of the cold air width of cloth does not allow the cold air that enters along air coolant tube 21 pass through cold air outlet 23 rows to the refrigerator outside.

Therefore, prevent that with cold air partition panel 41 the cold air row of refrigerating chamber is to the outside.

Afterwards, if close the door 3 ' of refrigerator, push rod 55 lifts cold air partition panel 41 gradually.If close the door 3 ' of refrigerator fully, cold air outlet 23 and door cold air inlet 33 are close together, and again to the door conduit 31 inner cold air that import.

As above-mentioned, the present invention is that to possess the device in the cold air loop of connecting portion between the air coolant tube that opens and closes refrigerator and the door conduit be basic fundamental thought.In basic fundamental thought range of the present invention, the operator who possesses the common knowledge of the industry has a lot of variations.

For example, cold air partition panel 41 is made up of body 51 and connecting portion 53 in the above-described embodiments.But also can be installed in support bar 43 bottoms to hinge 45 and elastomeric element 47, not have the connecting portion 53 of cold air partition panel 41, only form cold air partition panel 41 with a plane.

And, when opening refrigerating-chamber door 3 ' in the above-described embodiments, rotate cold air partition panel 41 to clockwise direction by the restoring force of elastomeric element 47, open and close cold air outlet 23.But can by deadweight when clockwise direction rotates cold air partition panel 41, needn't possess above-mentioned elastomeric element 47.

Claims

1, a kind of cold-air supply sturcture of refrigerator comprises the air coolant tube of a part of cold air of supplying with to refrigerating chamber being guided into the refrigerating chamber reveal; Be communicated with on refrigerating-chamber door with air coolant tube, to the door conduit of refrigerating chamber internal feed cold air; The switching of interlock refrigerating-chamber door can open and close air coolant tube, when opening, and the cold air partition apparatus that does not allow cold air run off by air coolant tube; It is characterized in that the cold air partition apparatus comprises that being located at air coolant tube exports, and is the rotating cold air partition panel in center with the hinge axis; Apply flexible elastomeric element to the closing cool air duct direction for the cold air partition panel; Overcome the elastic force of elastomeric element, can lift the push rod of cold air partition panel.

2, the cold-air supply sturcture of refrigerator according to claim 1 is characterized in that, push rod can push the cold air partition panel in the closing cold room door, opens the air coolant tube outlet, and air coolant tube is communicated with the door conduit.