CN102345959A

CN102345959A - Refrigerator

Info

Publication number: CN102345959A
Application number: CN2011100418381A
Authority: CN
Inventors: 渡边浩俊
Original assignee: Hitachi Appliances Inc
Current assignee: Hitachi Global Life Solutions Inc
Priority date: 2010-07-30
Filing date: 2011-02-18
Publication date: 2012-02-08
Anticipated expiration: 2031-02-18
Also published as: KR101278994B1; CN102345959B; KR20120022516A; JP5530850B2; JP2012032069A

Abstract

The invention relates to a refrigerator and provides a refrigerator capable of preventing vegetables or fruits from being frozen due to the freezing temperature of the freezer of the refrigerator and preventing the air door device of the refrigerator used for providing cold air to a vegetable chamber from being frozen. The refrigerator comprises a vegetable chamber and containers arranged inside the vegetable chamber. The refrigerator is characterized in that a vegetable chamber cold air outlet is arranged on the rear part of the upper surface of the vegetable chamber. An air door device arranged at the vegetable chamber cold air outlet for controlling the cold air amount supplied to the vegetable chamber comprises an air door housing and an air door housing cover. The air door housing is equipped with a baffle for opening and closing a cold air channel. The air door housing cover covers the air door housing with a gap therebetween. One side of the insulation baffle inside the vegetable chamber is equipped with a cold air return channel and a heating mechanism for heating the cold air return channel and the vegetable chamber through the cold air return channel.

Description

Refrigerator

Technical field

The present invention relates to refrigerator.

Background technology

Japanese kokai publication hei 8-303931 communique), the real fair 6-18177 communique of Japan (patent documentation 2: the real fair 6-18177 communique of Japan) and TOHKEMY 2010-60187 communique (patent documentation 3: TOHKEMY 2010-60187 communique) as the background technology in present technique field, japanese kokai publication hei 8-303931 communique (patent documentation 1: is arranged.

In patent documentation 1, record following deep freezer: by body of thermal insulating box and partition wall from above be divided into refrigerating chamber, refrigerating chamber and vegetable compartment; And make in the refrigerator of circulating cold air through cooler and air-supply arrangement, will carry the air channel of cold air be communicated to above-mentioned vegetable compartment to above-mentioned refrigerating chamber.In addition, on the wall part in the air channel that is communicated with to vegetable compartment, throttle setting is set.

The refrigerator of record possesses in patent documentation 2: the humidity sensor of the humidity in the vegetable box of detection vegetable compartment; Open and close the vegetable box air door of the connected entrance outside the box that leads to vegetable box by the detection signal drives of this humidity sensor; Detect the temperature sensor of the temperature in the vegetable box; And the vegetable compartment air door that opens and closes the cold air air outlet in vegetable compartment by the detection signal drives of this temperature sensor.

In addition, in patent documentation 3, record following refrigerator: the cold air that in vegetable compartment, blows out returns cooler through being formed on the vegetable chamber cold air backward channel on the adiabatic next door of separating refrigerating chamber and vegetable compartment.

Throttle setting shown in the patent documentation 1 is positioned at partition wall, has been passed through the influence of the cold air of cooler, is cooled to the cryogenic temperature band.If the air of vegetable compartment temperature band gets in the air channel under this state,, and in throttle setting and air channel, produce dewfall then owing to temperature difference.Dew might produce ice cube in the air channel, in addition, throttle setting can't be worked.

In addition, the vegetable compartment air door shown in the patent documentation 2 is located at the cold air air outlet of vegetable compartment designated lane.In this occasion, vegetable compartment air door self has directly been passed through the cold air cooling of cooler.Therefore, when opening the vegetable compartment door, owing to flow into the temperature difference of the heating installation in the vegetable compartment, on the vegetable compartment air door, produce a large amount of dews, the result might freeze.In addition, big electric current flows through drive motor, and is applied on motor winding or the mechanical type drive division, thereby might be damaged.

In addition, in patent documentation 3, do not have record be formed at vegetable chamber cold air backward channel on the adiabatic next door receive refrigerating chamber cryogenic temperature influence and be cooled, and be contained in the situation that the food such as vegetables or fruit in the vegetable compartment might freeze.

Summary of the invention

Therefore, the object of the present invention is to provide the influence of the cryogenic temperature of freezing-inhibiting chamber to involve vegetable compartment and prevent the refrigerator that freezes to the throttle setting of vegetable compartment cool-air feed.

In order to solve above-mentioned problem, for example adopt the structure of record within the scope of the claims.The application is characterised in that; The mechanism that comprises the above-mentioned problem of a plurality of solutions; If enumerate a wherein example; Possessing the vegetable compartment of dividing and be arranged in the refrigerator of the storage container on this vegetable compartment by adiabatic next door; Possess the upper surface rear portion that is arranged on above-mentioned vegetable compartment and also than the back of the body wall of above-mentioned storage container more lean on the vegetable chamber cold air outlet at rear and be arranged on this vegetable chamber cold air outlet and control to the throttle setting of the cold air supply of above-mentioned vegetable compartment; This throttle setting possesses air door housing and air door case cover; This air door housing has the baffle plate that opens and closes cold air path, and this air door case cover is separated with ground, space and covers above-mentioned air door housing, and above-mentioned adiabatic next door possesses the cold air backward channel and heats this cold air backward channel and heat the heating arrangements in the above-mentioned vegetable compartment through this cold air backward channel on the face of above-mentioned vegetable compartment side.

Effect of the present invention is following.

According to the present invention, can provide the influence of the cryogenic temperature of freezing-inhibiting chamber to involve vegetable compartment, and prevent the refrigerator that freezes to the throttle setting of vegetable compartment cool-air feed.

Description of drawings

Fig. 1 is the refrigerator of embodiments of the invention, is the main position key diagram of having removed door.

Fig. 2 is the main position cutaway view that the throttle setting of Fig. 1 is provided with portion.

Fig. 3 is the main position enlarged drawing that the throttle setting of Fig. 2 is provided with portion.

Fig. 4 is the exploded perspective view of the throttle setting of Fig. 1.

Fig. 5 has assembled the main position cutaway view with the portion that is provided with the throttle setting of the refrigerator of the throttle setting of the throttle setting various structure of Fig. 2.

Fig. 6 is the main position enlarged drawing that the throttle setting of Fig. 5 is provided with portion.

Fig. 7 is the structure of throttle setting is installed in figure from expression to vegetable compartment end face (adiabatic next door).

Fig. 8 is the figure of the expression throttle setting installment state different with Fig. 2.

Fig. 9 is the figure that explanation blows to the backward channel of the cold air in the vegetable compartment.

Figure 10 is the A-A cutaway view of Fig. 9.

Among the figure:

The 1-refrigerator main body, the 3-second adiabatic next door, 3a-vegetable compartment upper surface, 3b, 33a-inclined plane, 4-refrigerating chamber, 5-refrigerating chamber; The 6-vegetable compartment, 9, the 11-throttle setting, 10-cold air path, 10a-vegetable chamber cold air outlet, 12-Temperature Detector, 13-compressor; The 14-Defrost heater, 18-cold air backward channel, 19-drive motor, 20-baffle plate, 21-air door housing, 22-adiabatic space; 23-air door case cover, opening above the 23a-, 24-cold air path, 25-cold airflow inlet, 26-installation portion, 27a, 27b-lead-in wire; The 27c-shell, 28-accommodation section, 29-opening (cold air blow-off outlet), 30-cover, 30a-base, 31-upper strata container (storage container); 31a-cold air guiding rib, 32-lower floor container (storage container), 32a-flange part, 33-stage portion, 34-junction block, 35-encapsulant; 36-installs claw, 37-upper surface parts, 38-lower surface parts, 39-heat-insulating material, 40-channel mask, the front face in the 41-second adiabatic next door; The 42-cold air sucting inlet, 43-inclined plane, 44, the 50-heater, 45-communication path, 46-thermal transfer plate, 51-Machine Room.

The specific embodiment

In following embodiments of the invention, at length describe according to Fig. 1 to Fig. 6.At first, in Fig. 1 to Fig. 3, divide storage space by 2, the second adiabatic next door 3, the first adiabatic next door in the refrigerator main body 1.Storage space constitutes the different temperature band from the top by the order of refrigerating chamber 4, refrigerating chamber 5, vegetable compartment 6.

In addition, the front openings of each storeroom is respectively by not shown refrigerating-chamber door, refrigerating chamber door, the sealing of vegetable compartment door.In addition, refrigerator main body 1 also can be to have other for example structures of ice-making compartment, fast refrigerating chamber and temperature switching chamber etc.

Then, symbol 7 is circulating cold air fans in the case.Circulating cold air fan 7 forcibly makes by the cold air of cooler 8 coolings and preserves indoor circulation at each in the case.That is to say that cold air path that is connected with circulating cold air fan 7 in this case and the throttle setting of being located at each

storeroom

9,11 are mainly carried cold air to refrigerating chamber 5 according to Temperature Detector (not shown) etc.In addition, owing to refrigerating chamber 4, vegetable compartment 6 are compared temperature band height with refrigerating chamber 5, so dependency is carried cold air.

Then, symbol 10 is the cold air paths that import cold air to vegetable compartment 6.Cold air path 10 back through refrigerating chamber 5 etc. also connects the second adiabatic next door 3, and vegetable chamber cold air outlet 10a is towards vegetable compartment 6.

The position that is provided with this vegetable chamber cold air outlet 10a from after the vertical direction the stated occasion of observing be the end face rear portion of vegetable compartment of departing from the perspective plane of storage container.That is to say, more be provided with vegetable chamber cold air outlet 10a by the rear than the back of the body wall that holds container.

Symbol 11 is throttle settings.These throttle setting 11 control cold air influxs are to remain for example 0 ℃～5.0 ℃ with the temperature in the vegetable compartment 6.Therefore, throttle setting 11 opens and closes the baffle plate (stating behind the details) that the cold air in the cold air path 10 is blown out to vegetable compartment 6 according to the detected temperatures of Temperature Detector 12.The cold airflow of the throttle setting of stating in addition, 11 inlet 25 is connected with vegetable chamber cold air outlet 10a airtightly.In addition, in an embodiment, directly connect the cold airflow inlet 25 and vegetable chamber cold air outlet 10a of throttle setting 11, but also can be through installations such as packing ring or joints.In this occasion, can with size or variform a plurality of machine common component accordingly.

Usually, circulating cold air fan 7 is for remaining on-18 ℃, and with the time and the revolution running of necessity in the refrigerating chamber 5 in compressor 13 and the case.During circulating cold air fan 7 turns round in this compressor 13 and case, import the cold air of necessary amounts, and be cooled to set point of temperature to refrigerating chamber 4, vegetable compartment 6 respectively; For example, if refrigerating chamber 4 then remains 1.0～5.0 ℃; If vegetable compartment then remains 0 ℃～5.0 ℃.The control of this air conditioning quantity is controlled through

throttle setting

9,11.

In other words, cold air (up to interval of vegetable chamber cold air outlet 10a) in the cold air path 10 that cold air is imported vegetable compartment 6 flows, and it utilizes the baffle plate 20 in the throttle setting 11 to stop up to go out to vegetable compartment 6 effluents.

In addition, throttle setting 11 is located at bottom rear and is risen in the stage portion 33 form and the space that the second adiabatic next door 3 is become.That is to say to have the Machine Room 51 that is provided with forwards protruding mode, in this Machine Room 51, be provided with compressor 13 at the rear, bottom of vegetable compartment 6.And, be provided with throttle setting 11 in the rear space of the vegetable compartment 6 above Machine Room 51.

In other words, throttle setting 11 is installed on the vegetable compartment upper surface 3a that is formed by the second adiabatic next door 3 at the rear of vegetable compartment 6.The position of this throttle setting 11 is located in the so-called idle space that storage container etc. is not set in the past.Follow in this, the vegetable chamber cold air outlet 10a of cold air path 10 is towards this idle space.

Symbol 14 is provided in a side of the Defrost heater of the bottom of cooler 8.Symbol 15 is chutes of accepting to utilize the defrost water that 14 pairs of coolers 8 of Defrost heater defrost.Symbol 16 is with the drainpipe that accumulates in defrost water receiving plate 17 water guides of defrost water in being arranged on Machine Room 51 in the chute 15.

Symbol 18 is provided in a side of the cold air backward channel of the vegetable compartment 6 in the second adiabatic next door 3.This cold air backward channel 18 plays the effect that the cold air that sucks from suction inlet (not shown) is imported cooler 8, and this suction inlet is arranged on the front portion in the second adiabatic next door 3 that forms vegetable compartment upper surface 3a.

That is to say, behind the contents such as vegetables of cold air in having cooled off vegetable compartment 6 that blow out from throttle setting 11, be inhaled in the cold air backward channel 18 from the suction inlet (not shown) in the place ahead, top of vegetable compartment 6, and return cooler 8.

Then, use Fig. 2, Fig. 3 and Fig. 4 that the structure of throttle setting 11 is described.Throttle setting 11 by the air door housing 21 with drive motor 19, baffle plate 20 etc. and and air door housing 21 between be separated with the air door case cover 23 that adiabatic space 22 covers air door housing 21 (with reference to Fig. 2) and constitute.In addition, the reason that adiabatic space 22 is set is in order to utilize air adiabatic, so that the heat that becomes the air door housing 21 of low temperature because of the cold air that has passed through cooler 8 is difficult to pass to air door case cover 23.

In addition, air door case cover 23 is held air door housing 21 from top opening 23a.At this moment, as shown in Figure 2, the air door housing 21 of the baffle plate 20 of built-in drive motor 19 and switching cold air path 24 etc. is guaranteed the adiabatic space 22 of 1mm～5mm and is contained in the air door case cover 23.

In the bottom of air door housing 21 sides of cold air path 24 and be formed on that (size L) is provided with the interval about 30mm～100mm between the opening 29 on the air door case cover 23.Through having this adiabatic space 22, air door case cover 23 is utilized the space thermal insulation and is difficult to be cooled.

Thus, the heating installation that flows in the case in the time of can being suppressed at the door of opening vegetable compartment 6 significantly contacts and dewfall with air door case cover 23.In addition, air door case cover 23 prevents current of warm air inlet air door shell body 21 and directly contact.Therefore, prevent that heating installation from directly contacting and dewfall with air door housing 21.

In addition, the vegetable chamber cold air outlet 10a of air door case cover 23 with the cold air path 10 that keeps being located at the second adiabatic next door, 3 sides and the cold airflow of throttle setting 11 installation portion that is connected 26 between 25 that enters the mouth.As shown in Figure 5, this installation portion 26 connects on the installation claw 36 of being located at the second adiabatic next door, 3 sides through fastening.

As shown in Figure 4, the accommodation section 28 of lead-in wire 27 holds the shell 27c that has connected from drive motor 19 sides lead-in wire 27a that stretches out and the lead-in wire 27b that stretches out from refrigerator main body 1 side.About holding of this shell 27c, float in the space of accommodation section 28 in order to make shell 27c, as shown in Figure 4, the cover 30 of subsidiary base 30a is installed with the mode of stopping up 28 bottoms, accommodation section.Thus, shell 27c can prevent by the damage that gets into water droplet 28 generations of accommodation section along lead-in wire 27a.

Symbol 29 is provided in a side of the opening (cold air blow-off outlet) of air door case cover 23 bottoms.As shown in Figure 3, this opening 29 is provided with a plurality of in air door case cover 23 bottoms.And the gross area of these a plurality of openings 29 forms long-pending bigger than the one side that area is little in the aperture area of the entrance side aperture area of cold air path 24 or vegetable chamber cold air outlet 10a.Thus, making concerning baffle plate 20 warms fully, the vegetables room air gets in the air door case cover 23.This air warms baffle plate 20, thereby the dew of anti-baffle plate 20 freezes.

Therefore, be the structure of freezing to cause baffle plate 20 inefficacies that can prevent because of dew.Descend, exist the occasion of the environment for use of the worry that baffle plate 20 freezes if suppose air themperature externally; As shown in Figure 3; As long as the heater 50 of low capacity is set near baffle plate 20, and switches on to heating according to underheated occasion or other needs that utilization is located at the heater 44 on the cold air backward channel 18 and get final product.That is to say that heater 50 shown in Figure 3 warms air door housing 21 tops, thereby prevent freezing of baffle plate 20.Because the occasion that is provided with heater 50 can reduce the thermal output that adds of heater 44, therefore can suppress the harmful effect to food.

In vegetable compartment 6, be provided with upper strata container 31 and lower floor's container 32 as storage container.This upper strata container 31 and lower floor's container 32 door through vegetable compartment 6 pull out and utilize the guide rail (not shown) that is arranged on vegetable compartment 6 sides, can pull out and be arranged on freely in the vegetable compartment 6.

In addition, be contained in upper strata container 31 and evaporate moisture with lower floor's container 32 interior contents such as vegetables.Therefore, for not direct blast-cold gas this is studied.The method that is used for this is that contents in the vegetable compartment 6 are cooled off indirectly in order to avoid cold air directly blows to contents in container 31 and the outside of lower floor's container 32 from the upper strata.

In the refrigerator of present embodiment, as shown in Figure 2, the position that makes the opening of being located on the air door case cover 23 29 is in the position that fore-and-aft direction departs from the flange part 32a of lower floor's container 32, and is that cold air does not get into the position in lower floor's container 32.In addition, cold air guiding rib 31a and the flange part 32a of lower floor container 32 of the cold air that blows out from opening 29 through being located at upper strata container 31 bottom surfaces makes the gap become narrow relatively, thereby restriction cold air is from the intrusion of this part.This realizes at the fore-and-aft direction position deviation through making opening 29.

In addition; The cold air that blows out from opening 29 blows to the direction of stage portion 33, blow to stage portion 33 after, the inclined plane 33a that forms along this stage portion 33 flows; And flow to lower floor's container 32 bottom sides, thereby cool off the food in upper strata container 31, the lower floor's container 32 indirectly.

Then, to the bottom of air door housing 21 sides of cold air path 24 and between the opening 29 that forms on the air door case cover 23 (size L) further describe.This size L is provided with the interval about 30mm～100mm as stated.Thus, the cold air that blows out from opening 29 can concentrate on the below of lower floor's container 32.Therefore, become easily to lower floor's container 32 bottom surface sides guiding cold air, thereby can cool off contents (vegetables) indirectly.

That is to say that the cold air that has passed through cooler 8 that blows out from the opening 29 that is located on the air door case cover 23 cools off the back of lower floor's container 32, and shown in Fig. 2 arrow, cools off the bottom surface.So, cooled off the side face of upper strata container 31, lower floor's container 32 after, return cooler 8 through cold air backward channel 18.

Then, with reference to Fig. 5, Fig. 6 another embodiment is described.Fig. 5, Fig. 6 have assembled the main position cutaway view with the portion that is provided with the throttle setting of the refrigerator of the throttle setting of the throttle setting various structure of Fig. 2.In addition, to the incomplete structure explanation identical, difference only is described with Fig. 2.

Fig. 5, air door housing 21 shown in Figure 6 have the junction block 34 that is covered by heat-insulating material 39 in the upper end of cold air path 24.This junction block 34 is connected with the vegetable compartment cooling outlet 10a of the cold air path 10 of the second adiabatic next door, 3 sides.In addition, this junction block 34 can be assembled on the throttle setting 11 in advance, also can connect throttle setting 11 again with after the vegetable chamber cold air outlet 10a side of cold air path 10 is connected.

The purpose of taking this set structure is to improve operation property.That is to say that the operation of the inside, rear portion that throttle setting 11 is assembled in vegetable compartment 6 is because the depth of refrigerator main body 1 is dark more, and the distance from vegetable compartment 6 front face side to installation portion is far away more, it is difficult therefore to become.Especially in the time of on the vegetable compartment upper surface 3a that throttle setting 11 directly is assembled in vegetable compartment 6, owing to covered by vegetable compartment upper surface 3a cannot see connecting portion around, so operation property variation.

Therefore, through using junction block 34, can make this operation become easy.That is to say and since the vegetable chamber cold air outlet 10a of junction block 34 and cold air path 10 be connected operation and junction block 34 and throttle setting 11 be connected operation can see connecting portion around, so operation property becomes good.

Then, explanation is installed in the structure on the vegetable compartment end face (adiabatic next door) with throttle setting with reference to Fig. 7.In Fig. 7, throttle setting 11 is installed on the vegetable compartment upper surface 3a that the second adiabatic next door 3 become as shown in the figurely.That is to say; Between throttle setting 11 and vegetable compartment upper surface 3a, to clip encapsulant 35; And the cold airflow of throttle setting 11 inlet 25 inserted the state in the vegetable chamber cold air outlet 10a of cold air path 10 from the below, make installation portion 26 fastenings on the installation claw 36 side-prominent from the second adiabatic next door 3.

So, even be difficult to see on every side and the place of operation property difference that throttle setting 11 also can simply and easily be fixed on the vegetable compartment upper surface 3a from the below.Therefore, can not damage encapsulant 35 ground and carry out operation.

Then, with reference to Fig. 8 another embodiment is described.Fig. 8 has assembled the main position cutaway view with the portion that is provided with the throttle setting of the refrigerator of the throttle setting of the throttle setting various structure of Fig. 2.In addition, to the incomplete structure explanation identical, difference only is described with Fig. 2.

The throttle setting 11 of Fig. 8 is installed on the inclined plane 3b that the second adiabatic next door 3 become as shown in the figurely.In this structure, on one side visual throttle setting 11 clamped encapsulant 35 on one side, and the cold airflow of throttle setting 11 entered the mouth 25 is not slidably inserted in the vegetable chamber cold air outlet 10a of cold air path 10 from oblique below.Afterwards, make installation portion (not shown) fastening from the second adiabatic next door 3 side-prominent installation claw (not shown) first-class.

So, even be difficult to see on every side and the place of operation property difference that throttle setting 11 also can clip encapsulant 35 and simply and easily be fixed on the vegetable compartment upper surface 3a.But this occasion need make the distortion of cold air path as shown in Figure 6 10 sides.

Then, in Fig. 9, Figure 10, the backward channel of the cold air that in vegetable compartment, blows out is described.In Fig. 9, Figure 10, the second adiabatic next door 3 constitutes, and the upper surface side of its surface elements is made up of upper surface parts 37 at least, and lower face side is made up of lower surface parts 38, and filling heat insulator 39 in the space in these surface elements.In addition, heat-insulating material 39 is identical with the foam-thermal insulation (polyurethane foam) of filling to refrigerator main body 1.Therefore, behind filling heat insulator 39, the upper surface parts 37, lower surface parts 38 that constitute this second adiabatic next door 3 are through heat-insulating material 39 and integrated with the casing that constitutes refrigerator main body 1.In addition, heat-insulating material 39 is not limited to polyurethane foam, can be the moulded heat insulating material material that is configured as tabular grade by polystyrene foam etc. yet.

It is heat-insulating material 39 sides depression and the mode installation channel cover 40 in the space that forms with covering to the top of vegetable compartment 6 that cold air backward channel 18 makes the lower surface parts 38 on the surface of vegetable compartment 6 sides that constitute the second adiabatic next door 3.And be formed in the height dimension (size W) of the front face in the second adiabatic next door 3.This cold air path 18 is positioned at the top of the upper opening of upper strata container 31, and channel mask 40 is that conplane mode is installed to the rear from the place ahead on depth direction with the lower surface parts 38 formed vegetable compartment upper surface 3a with the second adiabatic next door 3.

If describe in more detail; Constitute; Channel mask 40 being installed under the state in the space that forms to heat-insulating material 39 sides depressions, the face of vegetable compartment 6 sides of channel mask 40 and lower surface parts 38 be not roughly same plane by the face of vegetable compartment 6 sides of channel mask 40 coverings.

That is to say that compare with the lower end (vegetable compartment 6 sides) of the front face 41 in the second adiabatic next door, channel mask 40 is side-prominent to vegetable compartment 6 hardly, thereby on vegetable compartment upper surface 3a, forms step.Therefore, cold air backward channel 18 is formed in the height dimension in the second adiabatic next door 3 and is not projected into the top of the storage container (upper strata container 31) of vegetable compartment 6.Thus, though the user on the height that food is contained in the height dimension same degree of upper strata container 31, the occasion of sliding in the back in front of the door that makes vegetable compartment 6 because food contact with channel mask 40, so can not damaged food.

As shown in Figure 9, the cold air sucting inlet 42 of cold air backward channel 18 is located at the front part in the second adiabatic next door 3.Symbol 43 is that the inclined plane is used in the cold air guiding.Inclined plane 43 constitutes the part of cold air sucting inlets 42, is easy to suck the front of cooling upper strata container 31 and lower floor's container 32 and flows into the cold air of top from the below.In addition, this inclined plane 43 is formed on the lower surface parts 38 that constitute the second adiabatic next door 3.

Through this structure, the cold airflow that blows out from throttle setting 11 is through the back side, bottom surface, the front of lower floor's container 32 and carried out after the heat exchange, is sucked from cold air sucting inlet 42 through inclined plane 43, returns cooler 8 effectively via cold air backward channel 18.

In addition; As shown in Figure 9; Through cold air sucting inlet 42 and inclined plane 43 are located in the second adiabatic next door 3, the face of the face of vegetable compartment 6 sides more forward than the cold air sucting inlet in the second adiabatic next door 3 (lower surface parts 38) 42 and vegetable compartment 6 sides of channel mask 40 constitutes same plane.Thus, even the user is contained in food on the height of height dimension with degree with upper strata container 31, make vegetable compartment 6 slide in the back in front of the door the time because food contact with cold air sucting inlet 42 and inclined plane 43, so can not damage food.

Then, symbol 44 is to be located at the heater on the face of heat-insulating material 39 sides of lower surface parts 38 with bigger area.When the temperature of this heater 44 in the room of settling refrigerator main body 1 is low, for example drop to below 0 ℃, be the occasion of solidification point environment in the vegetable compartment 6, be used to improve its temperature and prevent freezing, damaging of food such as the interior vegetables of vegetable compartment 6, fruit.

Through above structure; When the temperature of (settling the room of refrigerator) around the refrigerator is low temperature; 3 sides heat in the vegetable compartment 6 indirectly from the second adiabatic next door through cold air backward channel 18 through heater 44, thereby can not make heat concentrate on the part and food such as the vegetables of a part, fruit are heated to necessary above and damage.

In addition, heater 44 also can not be positioned at heat-insulating material 39, and is positioned at the face of cold air backward channel 18 sides of lower surface parts 38.Thus, owing to utilize cold air backward channel 18 and channel mask 40 formation spaces, therefore can heat indirectly in the vegetable compartment 6 through this space.

In addition, also can consider to be provided with baffle plate, and with heater 44 energising, thereby reduce thermal output separately and use with heater 50 (with reference to Fig. 3).This occasion through reducing the output of heater 44, can suppress the harmful effect to food.

In addition, even the temperature around refrigerator is the occasion below 0 ℃, circulating cold air fan 7 carries out in order to cool off the running in the refrigerating chamber 5 according to the indication of freezer temperature detector (not shown) in compressor 13, the case.At this moment, close baffle plate to stop cool-air feed to the throttle setting 9,11 of refrigerating chamber 4, vegetable compartment 6 cool-air feeds.But, because vegetable compartment 6 is arranged on the relation of refrigerating chamber 5 bottoms, receive the heat affecting of refrigerating chamber 5, can be produced as the occasion below 0 ℃.At this moment, make heater 44 heatings.

Then, symbol 45 is communication paths of being located on the second adiabatic next door 3.This communication path 45 is connected with cold air backward channel 18, and the cold air that will return cooler 8 in the cold air backward channel 18 imports cooler 8 bottoms.Symbol 46 is thermal transfer plate.The heat that this thermal transfer plate 46 will produce at when running defrosting Defrost heater 14 is to communication path 45 side transmission.Thus, whenever the frost attached to cold air backward channel 18 and communication path 45 sides is just melted in Defrost heater 14 heatings.

Because the present invention has structure as described above, therefore can obtain following effect.

Promptly; Possessing the vegetable compartment of dividing and be arranged in the refrigerator of the storage container in the vegetable compartment by adiabatic next door; Possess the upper surface rear portion that is arranged on above-mentioned vegetable compartment and than the back of the body wall of above-mentioned storage container more lean on the vegetable chamber cold air outlet at rear and be arranged on this vegetable chamber cold air outlet and control to the throttle setting of the cold air supply of above-mentioned vegetable compartment, this throttle setting possesses air door housing with the baffle plate that opens and closes cold air path and is separated with ground, space and covers the air door case cover of above-mentioned air door housing.Above-mentioned adiabatic next door possesses the cold air backward channel and heats the heating arrangements in the above-mentioned vegetable compartment with this cold air backward channel of heating and through this cold air backward channel on the face of above-mentioned vegetable compartment side.Thus, can prevent that such in the past air that is frozen to freezer temperature from flowing in the throttle setting 11.

In addition, the air door housing 21 of the drive motor 19 of opening and closing cover baffle plate 20 is separated with adiabatic space 22 ground and is covered by air door case cover 23, prevents that heating installation from directly contacting with air door housing 21, thereby prevents dewfall on air door housing 21.

In addition, owing to be exposed to the high humidity space of vegetable compartment 6 in the throttle setting 11,, can prevent to freeze though might go up dewfall at baffle-panels 20a (vegetable compartment side).And, can be reduced in the amount attached to the dew on the throttle setting 11 such as Men Shi of opening vegetable compartment 6 significantly.Thus, can suppress damage holds vegetables and prevents to damage drive motor etc.

In addition, throttle setting 11 by have drive motor 19 and open and close cold air path 24 baffle plate 20 etc. air door housing 21 and be separated with the air door case cover 23 that adiabatic space 22 ground hold this air door housing 21 and constitute.And possess: the installation portion 26 of cold airflow inlet 25 that is used to be connected at cold air path vegetable chamber cold air outlet 10a and the throttle setting 11 of the second adiabatic next door, 3 sides; To the lead-in wire 27a of drive motor 19 power supplies, the accommodation section 28 of 27b; And the cold air that will pass through baffle plate 20 blows out opening 29 of usefulness etc. to the bottom surface side of lower floor's container 32.Thus, can with throttle setting 11 be arranged in the vegetable compartment 6 and can be easily to the bottom surface side guiding cold air of lower floor's container 32, thereby the food (vegetables) indirectly in the cooled containers.

In addition, being located at cold air on the air door case cover 23 blows out aperture area with opening 29 to form the one side littler than arbitrary area of the aperture area of the cold airflow inlet 25 of the aperture area of cold air path vegetable chamber cold air outlet 10a or throttle setting 11 long-pending big.Thus, the vegetables room air that baffle-panels 20a is warmed gets in the air door case cover 23, thereby prevents to freeze baffle-panels 20a.

In addition, Machine Room 51 is positioned at the bottom rear of refrigerator main body 1, and the bottom rear in vegetable compartment 6 is formed with stage portion 33, is provided with throttle setting 11 in the space between this stage portion 33 and the second adiabatic next door 3.This space is obsolete in the past dead zone, and through in this space, being provided for the throttle setting 11 to vegetable compartment 6 cool-air feeds, the food that can suppress vegetable compartment 6 holds reducing of capacity.

In addition; Be located at bilevel storage container on the door of vegetable compartment 6 and use guide rail (not shown) to wait to pull out freely with respect to vegetable compartment 6 and be provided with at fore-and-aft direction, and vegetable compartment with the cold air of throttle setting 11 blow out also be positioned at than the top opening of lower floor container 32 with opening 29 below.Thus, become easily to the bottom surface side of lower floor's container 32 guiding cold air, thereby can cool off the interior food of storage container (upper strata container 31, lower floor's container 32) indirectly.The damage that can the water evaporates by vegetables or fruit be produced thus, suppresses minimumly.

In addition, it is first-class and fixing at the installation claw of being located on the second adiabatic next door 3 36 through installation portion 26 fastenings of air door housing 21 to accommodate the air door case cover 23 of air door housing 21.Therefore, when carrying out air door housing 21 is installed in vegetable compartment 6 upper surfaces operation in the portion, can not damage ground such as encapsulant 35, simply and easily install between the centre.

In addition, the second adiabatic next door 3 possesses cold air backward channel 18 on the face of vegetable compartment 6 sides of its surface elements, and has heater 44 in heat-insulating material 39 sides of lower surface parts 38.Thus; Because the influence that the environment temperature of refrigerator produces and from be positioned at vegetable compartment 6 above the influence etc. of cryogenic temperature of refrigerating chamber 5 cause vegetable compartment 6 to be the occasion of solidification point environment; Through making heater 44 work; The freezing of food in the vegetable compartment 6 can be prevented, and freezing can be prevented to be arranged on for the throttle setting 11 in the vegetable compartment 6 of cryogenic temperature band.

In addition, 3 sides heat vegetable compartment 6 indirectly from the second adiabatic next door through cold air backward channel 18 owing to be used to heat heaters 44 in the vegetable compartment 6, so food can be with heat, thereby can suppress the damage of food.

In addition, cold air backward channel 18 is to be provided with to vegetable compartment 6 side-prominent modes in the height dimension (the size W of Fig. 9) that is formed on the second adiabatic next door 3 and unlike vegetable compartment upper surface 3a.That is the face of vegetable compartment 6 sides that do not covered by channel mask 40 of face and lower surface parts 38 that, constitutes vegetable compartment 6 sides of channel mask 40 is same plane.Thus, compare with the bottom of the height dimension (size W) of the front face in the second adiabatic next door 3, channel mask 40 is not side-prominent to vegetable compartment 6, and the rear end part from the fore-end at least the second adiabatic next door 3 of vegetable compartment upper surface 3a to channel mask 40 is a flat condition.Therefore, slide and when opening and closing to fore-and-aft direction in the case at the door that makes vegetable compartment 6, be received into the food of the height of upper strata container 31 height same degree and can not contact and damage with cold air backward channel 18, the user is shutter door relievedly, and can hold food.

In addition, the second adiabatic next door 3 comprises at least surface elements that the lower surface parts 38 by the upper surface parts 37 of refrigerating chamber 5 sides and vegetable compartment 6 sides constitute and is filled in the heat-insulating material 39 in this surface elements.And, channel mask 40 be installed on make lower surface parts 38 and in the space that forms, thereby form cold air backward channel 18 to heat insulating member 39 sides depressions.Thus, in need be to cold air backward channel 18 and be arranged near it heater 44, thermal transfer plate 46 etc. check, when repairing, the maintenance personal is through can easily carrying out operation from vegetable compartment 6 side dumping lower channel covers 40.

In addition; The cold air sucting inlet 42 of cold air backward channel 18 is arranged on the front part in the second adiabatic next door 3 and in the height dimension (size W) in the second adiabatic next door 3, and has and be used for being easy to the inclined plane 43 of to cold air backward channel 18 in guiding and suction with having cooled off cold air in the vegetable compartment 6.Thus, cold air sucting inlet 42 is formed in the second adiabatic next door 3 with inclined plane 43, and the face and the channel mask 40 of vegetable compartment 6 sides of the front part in the second adiabatic next door 3 constitute same plane.Therefore, even the user is received into food near the height the upper end of upper strata container 31, make vegetable compartment 6 slide in the back in front of the door the time because food contact with cold air sucting inlet 42 and inclined plane 43, so can not damage food.

In addition, through inclined plane 43 is set on cold air sucting inlet 42, can makes the cold air in the vegetable compartment 6 successfully flow into cold air backward channel 18, thereby can make cold air return cooler 8 effectively.

In addition, the heater 44 of cold air backward channel 18 sides in being arranged on the second adiabatic next door 3, also possesses heater 50 in the position of the baffle plate that can heat throttle setting 11 20.Thus, simultaneously to heater 44 and heater 50 energisings, can reduce thermal output separately and use.In this occasion,, can suppress superheated food through reducing the output of heater 44.

Claims

1. a refrigerator possesses the vegetable compartment of being divided by adiabatic next door and is arranged on the storage container in this vegetable compartment, it is characterized in that,

Possess the upper surface rear portion that is arranged on above-mentioned vegetable compartment and also than the back of the body wall of above-mentioned storage container more lean on the vegetable chamber cold air outlet at rear and be arranged on this vegetable chamber cold air outlet and control to the throttle setting of the cold air supply of above-mentioned vegetable compartment,

This throttle setting possesses air door housing and air door case cover, and this air door housing has the baffle plate that opens and closes cold air path, and this air door case cover is separated with ground, space and covers above-mentioned air door housing,

Above-mentioned adiabatic next door possesses the cold air backward channel and heats this cold air backward channel and heat the heating arrangements in the above-mentioned vegetable compartment through this cold air backward channel on the face of above-mentioned vegetable compartment side.

2. refrigerator according to claim 1 is characterized in that,

Above-mentioned cold air backward channel is formed in the height dimension in above-mentioned adiabatic next door, and is not projected into the top of the above-mentioned storage container of above-mentioned vegetable compartment.

3. refrigerator according to claim 1 is characterized in that,

Above-mentioned adiabatic next door has upper surface parts and lower surface parts and is present in the heat-insulating material in the space that is formed by these upper surface parts and this lower surface parts,

Have channel mask in the space that forms making above-mentioned lower surface parts upwards state heat-insulating material side depression, thereby form above-mentioned cold air backward channel.

4. refrigerator according to claim 1 is characterized in that,

The cold air sucting inlet of above-mentioned cold air backward channel is arranged on the anterior of above-mentioned adiabatic next door and in the height dimension in this thermal insulation next door, and has the inclined plane that is used to guide cold air.

5. refrigerator according to claim 1 is characterized in that,

The baffle plate heating arrangements that possesses the above-mentioned baffle plate of heating.