CN102345956B

CN102345956B - Refrigerator

Info

Publication number: CN102345956B
Application number: CN201110041847.0A
Authority: CN
Inventors: 渡边浩俊; 笹村和文
Original assignee: Hitachi Appliances Inc
Current assignee: Hitachi Global Life Solutions Inc
Priority date: 2010-07-30
Filing date: 2011-02-18
Publication date: 2014-05-21
Anticipated expiration: 2031-02-18
Also published as: KR20120022515A; CN102345956A; JP2012032067A; KR101251434B1; JP5639811B2

Abstract

The invention relates to a refrigerator and provides a refrigerator equipped with a freezing-proof vegetable chamber air door device, wherein the refrigerator is higher in reliability. The refrigerator comprises a vegetable chamber divided by an insulation separator 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.

Description

Refrigerator

Technical field

The present invention relates to refrigerator.

Background technology

As the background technology of the art, there are Japanese kokai publication hei 8-303931 communique (patent documentation 1: Japanese kokai publication hei 8-303931 communique) and Japanese Patent Publication 6-18177 communique (patent documentation 2: Japanese Patent Publication 6-18177 communique).

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 by cooler and air-supply arrangement in the refrigerator of circulating cold air, will be communicated to above-mentioned vegetable compartment to the air channel of above-mentioned refrigerating chamber transporting cold-air.In addition, on the wall part in the air channel being communicated with to vegetable compartment, throttle setting is set.

The refrigerator of recording in patent documentation 2 possesses: the humidity sensor of the humidity in the vegetable box of detection vegetable compartment; Opened and closed 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 vegetable box; And opened and closed by the detection signal drives of this temperature sensor to the vegetable compartment air door of the cold air air outlet in vegetable compartment.

Throttle setting shown in patent documentation 1 is positioned at partition wall, is subject to, through the impact of cold air of cooler, to be cooled to cryogenic temperature band.If the air of vegetable compartment temperature band enters in air channel under this state, due to temperature difference, and produce dewfall in throttle setting and air channel.Dew likely produces ice cube in air channel, in addition, also likely makes throttle setting work.

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

Summary of the invention

Therefore, the object of the present invention is to provide a kind of possess prevent the vegetable compartment air door freezing and the refrigerator that has improved reliability.

In order to solve above-mentioned problem, adopt the structure of for example recording within the scope of the claims.The application is characterised in that, comprise the mechanism of the above-mentioned problem of multiple solutions, if enumerate a wherein example, possessing the vegetable compartment of being divided by adiabatic next door and be arranged in the refrigerator that holds container in this vegetable compartment, possesses the vegetable chamber cold air outlet that is arranged on the upper surface rear portion of above-mentioned vegetable compartment and more leans on rear than the above-mentioned back wall of holding container, with be arranged on this vegetable chamber cold air outlet and control the throttle setting to 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, this air door case cover is separated with and covers spatially above-mentioned air door housing.

Effect of the present invention is as follows.

According to the present invention, can provide a kind of possess prevent the vegetable compartment throttle setting freezing and the refrigerator that has improved reliability.

Accompanying drawing explanation

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

Fig. 2 is the main position cutaway view of the throttle setting setting unit of Fig. 1.

Fig. 3 is the main position enlarged drawing of the throttle setting setting unit of Fig. 2.

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

Fig. 5 is the main position cutaway view of having assembled the throttle setting setting unit of the refrigerator of the throttle setting with the structure different from the throttle setting of Fig. 2.

Fig. 6 is the main position enlarged drawing of the throttle setting setting unit of Fig. 5.

Fig. 7 is the figure that represents to install to vegetable compartment end face (adiabatic next door) structure of throttle setting.

Fig. 8 is the figure that represents the throttle setting installment state different from Fig. 2.

In figure:

1-refrigerator main body, the adiabatic next door of 3-second, 3a-vegetable compartment upper surface, 3b, 33a-inclined plane, 4-refrigerating chamber, 5-refrigerating chamber, 6-vegetable compartment, 9, 11-throttle setting, 10-cold air path, 10a-vegetable chamber cold air outlet, 12-Temperature Detector, 13-compressor, 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 23a-, 24-cold air path, 25-cold airflow entrance, 26-installation portion, 27a, 27b-lead-in wire, 27c-shell, 28-accommodation section, 29-opening (cold air blow-off outlet), 30-cover, 30a-base, 31-upper strata container (holding container), 31a-cold air guiding rib, 32-lower floor container (holding container), 32a-flange part, 33-stage portion, 34-junction block, 35-encapsulant, 36-mounting jaw, 50-heater, 51-Machine Room.

The specific embodiment

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

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

Then, symbol 7 is circulating cold air fans in case.In case, circulating cold air fan 7 forcibly makes to preserve indoor circulation by the cooling cold air of cooler 8 at each.That is to say, with cold air path that in this case, circulating cold air fan 7 is connected and the throttle setting 9,11 of being located at each storeroom according to Temperature Detector (not shown) etc. mainly to refrigerating chamber 5 transporting cold-airs.In addition, because refrigerating chamber 4, vegetable compartment 6 temperature band compared with refrigerating chamber 5 is high, therefore dependency transporting cold-air.

Then, symbol 10 is the cold air paths that import cold air to vegetable compartment 6.Cold air path 10 back by 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 is the end face rear portion of departing from the vegetable compartment on the perspective plane that holds container in the occasion of observing from vertical direction described later.That is to say, be more provided with vegetable chamber cold air outlet 10a by rear than the back wall of holding container.

Symbol 11 is throttle settings.This throttle setting 11 is controlled cold air influx the temperature in vegetable compartment 6 is remained to for example 0 ℃～5.0 ℃.Therefore, throttle setting 11, according to the detected temperatures of Temperature Detector 12, opens and closes the baffle plate (details aftermentioned) that the cold air in cold air path 10 is blown out to vegetable compartment 6.In addition, the cold airflow entrance 25 of throttle setting 11 described later is connected airtightly with vegetable chamber cold air outlet 10a.In addition, in an embodiment, directly connect the cold airflow entrance 25 and vegetable chamber cold air outlet 10a of throttle setting 11, but also can be by installations such as packing ring or joints.In this occasion, can with size or variform multiple machine common component accordingly.

Conventionally, circulating cold air fan 7 is in order to remain on-18 ℃ in refrigerating chamber 5, and with necessary time and revolution running in compressor 13 and case.During circulating cold air fan 7 turns round in this compressor 13 and case, import the cold air of necessary amount to refrigerating chamber 4, vegetable compartment 6 respectively, and be cooled to set point of temperature, for example,, if refrigerating chamber 4 remains 1.0～5.0 ℃, if vegetable compartment remains 0 ℃～5.0 ℃.The control of this air conditioning quantity is controlled by throttle setting 9,11.

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

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

In other words, throttle setting 11 is installed on the vegetable compartment upper surface 3a being formed by the second adiabatic next door 3 at the rear of vegetable compartment 6.The position of this throttle setting 11 is located at and does not arrange on the so-called idle space that holds container etc. in the past.Accompany thus, 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 Defrost heater 14 defrosts to cooler 8.Symbol 16 is to accumulate in defrost water in chute 15 to the drainpipe that is arranged on defrost water receiving plate 17 water guides in Machine Room 51.

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 sucking from suction inlet (not shown) is imported to 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, the cold air blowing out from throttle setting 11, the contents such as cooling vegetables in vegetable compartment 6, is inhaled in cold air backward channel 18 from the suction inlet (not shown) in the front, top of vegetable compartment 6, and returns to cooler 8.

Then, use Fig. 2, Fig. 3 and Fig. 4 that the structure of throttle setting 11 is described.Throttle setting 11 by have the air door housing 21 of 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 form.In addition, the reason that adiabatic space 22 is set is in order to utilize air adiabatic, is difficult to pass to air door case cover 23 so that become the heat of the air door housing 21 of low temperature because having passed through the cold air of cooler 8.

In addition, air door case cover 23 is held air door housing 21 from upper surface open 23a.Now, 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 air door case cover 23.

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

Thus, the heating installation flowing in case can be suppressed at significantly the door of opening vegetable compartment 6 time 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, air door case cover 23 has the installation portion being connected 26 between the vegetable chamber cold air outlet 10a of cold air path 10 and the cold airflow entrance 25 of throttle setting 11 that keeps being located at the second adiabatic next door 3 sides.As shown in Figure 5, this installation portion 26 connects on the mounting jaw 36 of being located at the second adiabatic next door 3 sides by engaging.

As shown in Figure 4, the accommodation section 28 of lead-in wire 27 holds the shell 27c that has connected the lead-in wire 27a stretching out from drive motor 19 sides and the lead-in wire 27b stretching out from refrigerator main body 1 side.About holding of this shell 27c, for shell 27c is floated in the space of accommodation section 28, as shown in Figure 4, the cover 30 of subsidiary base 30a is installed in the mode of stopping up 28 bottoms, accommodation section.Thus, shell 27c can prevent the damage being produced by the water droplet 28 that enters 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 multiple in air door case cover 23 bottoms.And the gross area of these multiple openings 29 is formed as long-pending larger than the one side that in the aperture area of the entrance side aperture area of cold air path 24 or vegetable chamber cold air outlet 10a, area is little.Thus, sufficient vegetables room air concerning baffle plate 20 warms is entered in air door case cover 23.This air warms baffle plate 20, thereby the dew of anti-baffle plate 20 freezes.

Therefore, be the structure that causes baffle plate 20 to lose efficacy freezed that can prevent because of dew.If suppose to decline, exist at external air temperature the occasion of the environment for use of the worry that baffle plate 20 freezes, as shown in Figure 3, as long as the heater 50 of low capacity is set near of baffle plate 20, and is located at the underheated occasion of the heater 44 on cold air backward channel 18 or other according to utilization and need to switches on and heat.That is to say, the heater 50 shown in Fig. 3 warms air door housing 21 tops, thus the freezing of anti-baffle plate 20.Owing to being provided with the occasion of heater 50 and can reducing the thermal output that adds of heater 44, therefore can suppress the harmful effect to food.

In vegetable compartment 6, be provided with as the upper strata container 31 and lower floor's container 32 that hold container.The pull-out by the door of vegetable compartment 6 of this upper strata container 31 and lower floor's container 32 utilization are arranged on the guide rail (not shown) of vegetable compartment 6 sides, can pull out and be arranged on freely in vegetable compartment 6.

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

In the refrigerator of the present embodiment, as shown in Figure 2, the position that makes to be located at the opening 29 in air door case cover 23 is to depart from the position of the flange part 32a of lower floor's container 32 at fore-and-aft direction, and does not enter the position in lower floor's container 32 for cold air.In addition, the cold air guiding rib 31a of the cold air blowing out from opening 29 by being located at upper strata container 31 bottom surfaces becomes narrow with the relative gap that makes of flange part 32a of lower floor container 32, thereby restriction cold air is from the intrusion of this part.This is by making opening 29 realize at fore-and-aft direction position deviation.

In addition, the cold air blowing out from opening 29 blows to the direction of stage portion 33, blows to after stage portion 33, and the inclined plane 33a forming along this stage portion 33 flows, and flow to lower floor's container 32 bottom sides, thereby the food indirectly in cooling upper strata container 31, lower floor's container 32.

Then, between the bottom of air door housing 21 sides to cold air path 24 and the opening 29 of formation in air door case cover 23, (size L) further describes.L is described above for this size, and the interval of 30mm～100mm left and right is set.Thus, the cold air blowing 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, thus cooling contents (vegetables) indirectly.

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

Then, with reference to Fig. 5, Fig. 6, another embodiment is described.Fig. 5, Fig. 6 are the main position cutaway views of having assembled the throttle setting setting unit of the refrigerator of the throttle setting with the structure different from the throttle setting of Fig. 2.In addition, to the incomplete structure explanation identical with Fig. 2, difference is only described.

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

The object of taking this set structure is to improve workability.That is to say, throttle setting 11 is assembled in to the operation of portion in the rear of vegetable compartment 6 because the depth of refrigerator main body 1 is darker, far away to the distance of installation portion from vegetable compartment 6 front face side, it is difficult therefore to become.Especially on the vegetable compartment upper surface 3a in vegetable compartment 6 by throttle setting 11 direct-assemblings time, owing to being covered and cannot see connecting portion around by vegetable compartment upper surface 3a, therefore workability variation.

Therefore,, by using junction block 34, can make this operation become easy.That is to say, due to the vegetable chamber cold air outlet 10a of junction block 34 and cold air path 10 be connected being connected operation and can seeing connecting portion around of operation and junction block 34 and throttle setting 11, therefore workability becomes good.

Then, with reference to Fig. 7, throttle setting is arranged on the structure on vegetable compartment end face (adiabatic next door) by explanation.In Fig. 7, throttle setting 11 is arranged on the vegetable compartment upper surface 3a in 3 one-tenth, the second adiabatic next door as shown in figure.That is to say, to clip encapsulant 35 between throttle setting 11 and vegetable compartment upper surface 3a, and the cold airflow entrance 25 of throttle setting 11 is inserted to the state in the vegetable chamber cold air outlet 10a of cold air path 10 from below, make installation portion 26 engagings on the mounting jaw 36 side-prominent from the second adiabatic next door 3.

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

Then, with reference to Fig. 8, another embodiment is described.Fig. 8 is the main position cutaway view of having assembled the throttle setting setting unit of the refrigerator of the throttle setting with the structure different from the throttle setting of Fig. 2.In addition, to the incomplete structure explanation identical with Fig. 2, difference is only described.

The throttle setting 11 of Fig. 8 is arranged on the inclined plane 3b in 3 one-tenth, the second adiabatic next door as shown in figure.In this structure, visual throttle setting 11 is clamped encapsulant 35 on one side on one side, and the cold airflow entrance 25 of throttle setting 11 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) engaging first-class from the side-prominent mounting jaw (not shown) in the second adiabatic next door 3.

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

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

; possessing the refrigerating chamber divided by adiabatic next door and vegetable compartment and be arranged in the refrigerator that holds container in vegetable compartment; it is characterized in that; possess and be arranged on the upper surface rear portion of above-mentioned vegetable compartment and 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 than the above-mentioned back wall of holding container, this throttle setting possesses and has the air door housing of the baffle plate that opens and closes cold air path and be separated with the air door case cover that covers spatially above-mentioned air door housing.Thus, can prevent from being frozen like that in the past and enter in throttle setting 11 for the air stream of freezer temperature.

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 being exposed in throttle setting 11 in the high humidity space of vegetable compartment 6, although likely in the upper dewfall of baffle-panels 20a (vegetable compartment side), can prevent from freezing.And, can be reduced in significantly Men Shi that opens vegetable compartment 6 etc. and be attached to the amount of the dew on throttle setting 11.Thus, can suppress damage holds vegetables and prevents from damaging drive motor etc.

In addition, throttle setting 11 by there is drive motor 19 and open and close cold air path 24 baffle plate 20 etc. air door housing 21 be separated with the air door case cover 23 that adiabatic space 22 ground hold this air door housing 21 and form.And possess: for being connected at the installation portion 26 of the second cold air path vegetable chamber cold air outlet 10a of adiabatic next door 3 sides and the cold airflow entrance 25 of throttle setting 11; The accommodation section 28 of lead-in wire 27a, the 27b powering to drive motor 19; And the cold air that has passed through baffle plate 20 is blown out to opening 29 of use etc. to the bottom surface side of lower floor's container 32.Thus, throttle setting 11 can be arranged in 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 cooled containers.

In addition, be located at cold air in air door case cover 23 and blow out that to be formed as the one side less than arbitrary area of the aperture area of the cold airflow entrance 25 of the aperture area of cold air path vegetable chamber cold air outlet 10a or throttle setting 11 with the aperture area of opening 29 long-pending large.Thus, the vegetables room air that baffle-panels 20a warms is entered in air door case cover 23, thereby prevent from freezing 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, in the space between this stage portion 33 and the second adiabatic next door 3, is provided with throttle setting 11.This space is the dead zone in the past not using, and by being provided in this space to the throttle setting 11 of vegetable compartment 6 cool-air feeds, the food that can suppress vegetable compartment 6 holds reducing of capacity.

In addition, the bilevel container that holds of being located on the door of vegetable compartment 6 uses guide rail (not shown) etc. to pull out freely and arrange with respect to vegetable compartment 6 at fore-and-aft direction, and below vegetable compartment blows out and be also positioned at than the upper surface open of lower floor container 32 with opening 29 with the cold air of throttle setting 11.Thus, become easily to the bottom surface side guiding cold air of lower floor's container 32, thus the cooling interior food of container (upper strata container 31, lower floor's container 32) that holds indirectly.The damage that the moisture evaporation by vegetables and fruit can be produced thus, suppresses minimumly.

In addition, installation portion 26 engagings of the air door case cover 23 that accommodates air door housing 21 by air door housing 21 are to be located at mounting jaw 36 on the second adiabatic next door 3 first-class and fixing.Therefore,, in the time carrying out air door housing 21 to be arranged in vegetable compartment 6 upper surfaces the operation in portion, can not damage the ground such as encapsulant 35 between, simply and easily install.

By the above, according to the present invention, can obtain following refrigerator: be attached to the amount of the dew in throttle setting main body can significantly reduce vegetable compartment door and open wide time etc., even in the occasion of the upper dewfall of baffle-panels (vegetable compartment side), also can suppress it and freeze.In addition, even if freeze, owing to significantly having reduced the amount of dew, therefore can peel off and freeze part with less power.

Claims

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

Possess and be arranged on the upper surface rear portion of above-mentioned vegetable compartment and 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 than the above-mentioned back wall of holding container,

This throttle setting possesses air door housing and air door case cover, and this air door housing has the internal baffle that opens and closes cold air path, and this air door case cover is separated with the above-mentioned air door housing of covering spatially that utilizes air adiabatic.

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

Above-mentioned air door housing possesses: the installation portion that connects the above-mentioned cold air path of above-mentioned vegetable chamber cold air outlet and above-mentioned throttle setting; To the lead-in wire accommodation section that drives the drive motor of above-mentioned baffle plate to power; And the opening that the cold air that has passed through above-mentioned baffle plate is blown out to the above-mentioned bottom surface side that holds container.

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

The side's that arbitrary area of the area of the above-mentioned vegetable chamber cold air outlet of above-mentioned aperture efficiency of above-mentioned air door housing or the entrance side area of the above-mentioned cold air path of above-mentioned throttle setting is little area is large.

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

There is the Machine Room at the rear, bottom to be arranged on above-mentioned vegetable compartment to the mode of front side protrusion and be arranged on the compressor in this Machine Room,

The rear space of the above-mentioned vegetable compartment above above-mentioned Machine Room is provided with above-mentioned throttle setting.

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

The above-mentioned upper strata container that holds container and have lower floor's container and this lower floor container top, the above-mentioned opening of above-mentioned throttle setting is positioned at than the upper opening of above-mentioned lower floor container also to be located on the lower.

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

The above-mentioned installation portion engaging of above-mentioned air door case cover is being located on the mounting jaw of above-mentioned adiabatic next door side.