JP2013019609A - Refrigerator and method of cooling the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly cool a storage chamber without a cold-air inlet, and to reduce a temperature effect of the storage chamber without the cold-air inlet on storage chambers with the cold-air inlets so as to uniformize temperature distribution of the storage chambers with the cold-air inlets.SOLUTION: A refrigerator includes: the first storage chambers 2-4 with the cold-air inlets 8-10 for introducing cold air thereinto; and the second storage chamber 5 without the cold-air inlets 8-10 adjacent to the first storage chambers 2-4. The first storage chambers 2-4 are provided with cold-air outlets 11-13 which blast the cold air at partition walls W1-W3 between the first storage chambers 2-4 and the second storage chamber 5.

Description

  The present invention relates to a refrigerator and a cooling method for the refrigerator.

  As a conventional refrigerator, as shown in Patent Document 1, the vegetable room having the highest temperature than other rooms, the vegetable room adjacent to the vegetable room through a partition wall, and a refrigerator room having a lower temperature than the vegetable room, ice storage There is a refrigerator having a room and a cold room. And in this refrigerator, the vegetable room is indirectly cooled through the partition wall by conduction heat from the refrigeration room, the ice storage room, and the low temperature room, thereby eliminating the need for piping for forcing cold air to the vegetable room.

  However, in this refrigerator, in the room adjacent to the vegetable room, the partition wall with the vegetable room tends to be warmer than the other side walls. For this reason, the temperature distribution in the room adjacent to the vegetable room may be uneven. Therefore, in a room adjacent to the vegetable room, the temperature effect on the food differs between a place close to the partition wall with the vegetable room and many places, and it becomes difficult to stably store the food.

JP 2000-320943 A

  Accordingly, the present invention has been made to solve the above problems all at once, and enables a storage room having no cold air inlet to be suitably cooled, and the storage room having the cold air inlet has a cold air inlet. The main purpose of the present invention is to make the temperature distribution of the storage room having the cold air inlet uniform by reducing the temperature effect received from the storage room having no air.

  That is, the refrigerator according to the present invention is a refrigerator in which the interior is partitioned by a plurality of partition walls to form a plurality of storage chambers, the first storage chamber having a cold air inlet for introducing cold air into the room, A second storage chamber that is adjacent to the first storage chamber and does not have the cold air inlet, toward the partition wall between the first storage chamber and the second storage chamber A cold air outlet for blowing out cold air is provided in the first storage chamber.

  The refrigerator cooling method according to the present invention includes a first storage chamber having a cold air inlet for introducing cold air into the room, and a first storage chamber adjacent to the first storage chamber and having no cold air inlet. A cooling method for a refrigerator having two storage chambers, wherein a cold air outlet for blowing out cold air toward a partition wall between the first storage chamber and the second storage chamber is provided, and the cold air outlet The partition wall is cooled by applying cold air to the partition wall, and the second storage chamber is cooled via the partition wall.

  If it is such, since it is set as the system which cools the 2nd storage room which does not have a cold air inlet through a partition wall, the cold air introduction piping to a 2nd storage room can be made unnecessary. The internal volume of the second storage chamber can be increased. Further, the partition wall between the first storage chamber and the second storage chamber is cooled by directly applying cold air to the partition wall between the first storage chamber and the second storage chamber, thereby cooling the central wall. It functions as a plate, and the second storage chamber can be efficiently cooled via the partition wall. Furthermore, since the partition wall is centrally cooled by applying cold air to the partition wall between the first storage chamber and the second storage chamber, an increase in the wall surface temperature of the partition wall can be suppressed. Thereby, the temperature influence received from a 2nd store room via a partition wall can be reduced, the indoor temperature distribution of a 1st store room can be equalized, and preservation | save of a foodstuff can be performed stably.

  In order to be able to adjust the cool air blowing direction to the partition wall and to cool the partition wall suitably, it is desirable that the cold air outlet has a movable slat (movable Louver).

  As a specific operation mode of the movable slats, the movable slats face the first storage chamber side during the first storage chamber cooling operation for cooling the first storage chamber, or During the second storage chamber cooling operation in which the cold air outlet is closed and the second storage chamber is cooled, it faces the partition wall between the first storage chamber and the second storage chamber. It is desirable. If it is this, it will become the structure which blows off cool air toward a partition plate only when it is necessary to cool a 2nd storage chamber, and it can prevent overcooling.

  In order to simplify the configuration of the first refrigerating chamber and the configuration of the piping, it is desirable that a cold air inlet provided in the first storage chamber also serves as the cold air outlet.

  In the case where the first storage chamber has a plurality of cold air inlets, it is preferable that at least the cold air inlet closest to the second storage chamber functions as the cold air outlet. In this case, it is possible to easily apply cold air to the partition wall from the cold air inlet used as the cold air outlet, and the partition wall and the second storage chamber can be efficiently cooled.

  In order to determine whether or not the second storage chamber needs to be cooled via the partition wall, a temperature detector is provided in the partition wall between the first storage chamber and the second storage chamber. It is desirable that

  In order to efficiently cool the second storage chamber, it is desirable that a plurality of first storage chambers be formed adjacent to the second storage chamber. In this case, the number of partition walls for cooling the second storage chamber is increased, and the second storage chamber can be efficiently cooled. Moreover, the temperature influence from the second storage chamber to each first storage chamber can be further reduced.

  In the case of a thing adjacent to a plurality of 1st store rooms, it is possible that the set cooling temperature changes with kinds of the 1st store room. For this reason, it is desirable that the thickness of the partition wall between the first storage chamber and the second storage chamber is different for each type of the adjacent first storage chamber.

  The storage room for storing bottles is required to have as large an internal volume as possible because of the large volume of the bottles. For this reason, it is desirable that the second storage chamber be a bottle chamber (bottle chamber) for storing and cooling the bottle.

  In order to efficiently cool the second storage chamber through the partition wall by heat transfer from the first storage chamber, the second storage chamber has a set cooling temperature higher than that of the first storage chamber. Is desirable.

  As a specific configuration aspect of each room in the refrigerator, the first storage room is a refrigeration room, a freezing room, and a vegetable room, and the second storage room houses and cools a bottle. Bottle room (bottle room), the refrigerator compartment is formed in the uppermost part in the warehouse, and the freezer compartment is formed in the lowermost part in the warehouse, between the refrigerator compartment and the freezer compartment It is desirable that the vegetable compartment and the bottle compartment are formed side by side. In this case, the bottle chamber can be suitably cooled from the upper wall, the lower wall and the side wall.

  Temperature detectors are provided in each of a partition wall between the bottle chamber and the refrigerator compartment, a partition wall between the bottle chamber and the freezer compartment, and a partition wall between the bottle chamber and the vegetable compartment. Is desirable. In this case, the second storage chamber can be efficiently cooled by judging whether or not the cold air is blown out from the cold air outlet provided in each of the refrigerator compartment, the freezer compartment, and the vegetable compartment. The temperature effect which each room receives from a wall can be reduced further.

  According to the present invention configured as described above, it is possible to suitably cool a storage room having no cold air inlet, and a temperature received by a storage room having a cold air inlet from a storage room having no cold air inlet. The influence can be reduced and the temperature distribution in the storage chamber having the cold air inlet can be made uniform.

The front view which shows the typical structure of the refrigerator which concerns on this embodiment. The schematic diagram which shows the structure of the movable slat of the embodiment. The schematic diagram which shows the operation | movement of the movable slat of the embodiment. The figure which shows the flow of the cool air at the time of the normal driving | operation of the embodiment. The figure which shows the flow of the cold air at the time of bottle chamber cooling of the embodiment. The figure which shows the procedure of the bottle chamber cooling operation | movement of the embodiment.

  An embodiment of the present invention will be described below with reference to the drawings.

  The refrigerator 100 according to the present embodiment is formed by partitioning an interior formed by a heat insulating box having a substantially rectangular parallelepiped shape with a plurality of walls to form a plurality of storage rooms. Specifically, as shown in FIG. 1, the refrigerator 100 has a refrigerator compartment 2 formed at the top of the refrigerator, a freezer compartment 3 formed at the bottom of the refrigerator, and the refrigerator compartment 2 and the refrigerator. A vegetable room 4 and a bottle room 5 (bottle room, hereinafter referred to as bottle room 5) are formed between the rooms 3 side by side. In addition, the door of each room 2-4 is abbreviate | omitted in FIG. In the refrigerator 100, a first cooler 6 and a second cooler 7 are arranged on the back side of the refrigerator compartment 2 and the back side of the freezer compartment 3, respectively. The chamber 4 is cooled, and the freezer 3 is cooled by the second cooler 7. Moreover, the preset cooling temperature of the bottle chamber 5 is 5 ° C. to 15 ° C., and the set cooling temperature is set higher than those of the other rooms 2 to 4.

  The refrigerator compartment 2 and the vegetable compartment 4 have one or a plurality of cold air inlets 8 and 9 for introducing the cold air from the first cooler 6 into the room. The cold air inlets 8 and 9 are connected to a first cold air pipe (not shown) that is provided on the back of the refrigerator compartment 2 and the vegetable compartment 4 and distributes the cold air from the first cooler 6. In FIG. 1, the refrigerator compartment 2 has two cold air inlets 8, and these are formed in the upper part of the refrigerator compartment 2 side by side. Moreover, the vegetable compartment 4 has shown what the one cold air inlet 9 was formed. In addition, in the refrigerator compartment 2 and the vegetable compartment 4, the number and arrangement positions of the cold air inlets 8 and 9 can be set as appropriate.

  The freezer compartment 3 has one or a plurality of cold air inlets 10 for introducing the cold air from the second cooler 7 into the room. The cold air inlet 10 is connected to a second cold air pipe (not shown) that is provided on the back surface of the freezer compartment 3 and distributes the cold air from the second cooler 7. In FIG. 1, the freezer compartment 3 has two cold air inlets 10, and these are formed in the upper part of the freezer compartment 3 side by side. In the freezer compartment 3, the number and arrangement positions of the cold air inlets 10 can be set as appropriate.

  On the other hand, the bottle chamber 5 does not have a cold air inlet for introducing cold air from either the first cooler 6 or the second cooler 7 into the room. Thereby, it is set as the structure which increases the internal volume of the bottle chamber 5 as much as possible, without requiring cold air piping in the back surface of the bottle chamber 5. FIG. Thus, in this embodiment, the refrigerator compartment 2, the freezer compartment 3, and the vegetable compartment 4 are 1st store rooms, and the bottle room 5 is a 2nd store room.

  In the present embodiment, the cold room 2 adjacent to the bottle room 5 is provided with a cold air outlet 11 through which cold air is blown out toward the partition wall W <b> 1 between the bottle room 5 and the cold room 2. Further, the freezing chamber 3 adjacent to the bottle chamber 5 is provided with a cold air outlet 12 through which cold air is blown out toward the partition wall W <b> 2 between the bottle chamber 5 and the freezing chamber 3. Further, a cold air outlet 13 is provided in the vegetable room 4 adjacent to the bottle room 5 and blows out cold air toward the partition wall W3 between the bottle room 5 and the vegetable room 4.

  With such a configuration, the bottle chamber 5 is indirectly cooled from the partition wall W1 with the refrigerator compartment 2, the partition wall W2 with the freezer compartment 3, and the partition wall W3 with the vegetable compartment 4. Specifically, in the bottle chamber 5, the rear wall and the left wall are made of heat insulating material, the front wall is a door, and the other three-way partition walls W1 to W3 (upper wall, lower wall, and lower wall) are cold air outlets. It becomes the cooling plate cooled by 11-13.

  And the cold air outlets 11-13 provided in the refrigerator compartment 2, the freezer compartment 3, and the vegetable compartment 4 are provided in the vicinity of each partition wall W1-W3. Specifically, the cold air outlet 11 of the refrigerator compartment 2 is provided in the vicinity of the upper part of the partition wall W1, and blows cold air directly onto the partition wall W1. The cold air outlet 12 of the freezer compartment 3 is configured using a cold air inlet 10 provided in the vicinity of the lower portion of the partition wall W2, and blows cold air directly onto the partition wall W2. The cold air outlet 13 of the vegetable compartment 4 is configured using a cold air inlet 9 provided in the vicinity of the right side of the partition wall W3, and blows cold air directly onto the partition wall W3.

  And the cool air blower outlets 11-13 comprised in this way have the movable slat (movable Louber) L, as shown in FIG. This movable slat L can be switched between opening and closing of the cold air outlets 11 to 13.

  In the cold air inlet 10 of the freezer compartment 3 and the cold air inlet 9 of the vegetable compartment 4 that are used as the cold air outlets 12 and 13, the movable slats L, as shown in FIG. A closing position (CLOSE) for closing the air, a first blowing position (OPEN 1) for blowing out from the cold air inlets 9 and 10 toward the first direction, and a direction from the cold air inlets 9 and 10 toward the second direction It is configured to be movable between three positions with the second blowing position (OPEN 2) to be blown out. Here, the first blow-out position (OPEN 1) is configured to narrow the opening and restrict the direction of the wind by narrowing the opening in order to concentrate and cool the partition walls W2 and W3 when the bottle chamber 5 is cooled. It is the direction of spraying toward W3. The second blowing position (OPEN 2) is a position where the cold air inlets 9 and 10 are fully opened, and is a position for enlarging the opening during normal operation and introducing cold air into the entire room.

  In the cold air outlet 11 provided in the lower part of the refrigerator compartment 2, the movable slat L is in a closed position (CLOSE) for closing the cold air outlet 11 and from the cold air outlet 11 in the first direction. The first blowout position (OPEN 1) to be blown out is configured to be movable at two positions. In addition, you may comprise so that a movement to the 2nd blowing position (OPEN 2) is possible.

  In addition, movable vanes L are also provided in the cold air inlets 8 to 10 that are not used as the cold air outlets 11 to 13, and the movable vanes L are closed positions for closing the cold air inlets 8 to 10. (CLOSE) and a second blowing position (OPEN 2) for introducing cool air into the entire room during normal operation.

  Moreover, in order to equalize the temperature influence from the bottle chamber 5 in each of the rooms 2 to 4 adjacent to the bottle chamber 5, the thermal conductivity of each partition wall W1 to W3 is set to each of the rooms adjacent to the bottle chamber 5. It is comprised so that it may differ for every kind of 2-4. In this embodiment, the thickness of each partition wall W1-W3 is comprised so that it may differ for every kind of each room 2-4 adjacent to the bottle chamber 5, and the thermal conductivity of each partition wall W1-W3 is set. It is different. Specifically, the wall thickness of the partition walls W1 to W3 is increased in proportion to the temperature difference between the bottle chamber 5 and each of the adjacent rooms 2 to 4 and / or the area of the partition walls W1 to W3. For example, when the bottle chamber 5 has an internal volume of 120 cm in width, 350 cm in height, and 660 cm in depth, and can accommodate six 2L plastic bottles, the refrigerator compartment 2 sets the set cooling temperature for each of the rooms 2 to 4. When 3 ° C., vegetable compartment 4 is 5 ° C., freezer compartment 3 is −20 ° C., and bottle compartment 5 is 10 ° C., “partition wall W1 with refrigerator compartment 2”: “partition wall W3 with vegetable compartment 4” : “Partition wall W2 with freezer compartment 3” = 2: 1: 4.

  Further, a first temperature detection unit (R Sensor) 14 is provided on the side of the partition wall W1 with the refrigerator compartment 2 on the bottle chamber 5 side, and on the side of the bottle chamber 5 with respect to the partition wall W2 with the freezer compartment 3 A second temperature detection unit (F sensor) 15 is provided, and a third temperature detection unit (V sensor) 16 is provided on the side of the bottle chamber 5 of the partition wall W3 with the vegetable room 4. . Detection signals from the temperature detection units 14 to 16 are output to a control device (not shown) (not shown). The control device is a computer including a CPU, a memory, and the like, and the movable slats L of the cold air inlets 8 to 10 and the cold air outlets 11 to 13 are based on detection signals from the temperature detectors 14 to 16. Control.

  Next, a cooling method of the refrigerator 100 configured as described above will be described.

  First, during normal operation (when the bottle chamber 5 is not cooled), as shown in FIG. 4, it is provided at the cold air inlets 8 to 10 of the rooms 2 to 4 except for the cold air outlet 11 provided in the refrigerator room 2. The movable slat L is moved to the second blowing position (fully opened state) so that the cold air flows uniformly in each of the rooms 2 to 4. At this time, the movable slat L of the cold air outlet 11 is in the closed position.

  On the other hand, when the bottle chamber 5 is cooled, as shown in FIG. 5, except for the cold air outlets 11 to 13 disposed in the vicinity of the partition walls W1 to W3, the other movable air inlets 8 to 10 are movable. The cold air inlets 8 to 10 are closed by moving the type slats L to the closing position. On the other hand, the movable slats L provided in the cold air outlets 11 to 13 disposed in the vicinity of the partition walls W1 to W3 are moved to the first blowing position to intensively cool the partition walls W1 to W3. To do.

  Hereinafter, a specific procedure at the time of cooling the bottle chamber 5 will be described with reference to FIG.

  Based on the temperature detection signals of the temperature detectors 14 to 16 provided on the partition walls W1 to W3 of the bottle chamber 5, the cold air inlets 8 to 10 and the cold air outlets 11 to 11 of the adjacent rooms 2 to 4 are used. The position of 13 movable slats L is determined.

  First, the temperature of the partition wall W2 is detected by a second temperature detection unit (F Sensor) 15 provided in the partition wall W2 with the freezer compartment 3. And when the partition wall W2 with the freezer compartment 3 is not below the preset cooling temperature of the bottle compartment 5, in the cold-air outlet 12 of the freezer compartment 3, the movable slat L is the 1st blowing position (OPEN 1), and in other cold air inlets 10, the movable slats L are in the closed position (CLOSE). Thereby, the partition wall W2 with the freezer compartment 3 is cooled intensively.

  After maintaining this state for a certain time, if the partition wall W2 with the freezer compartment 3 is equal to or lower than the set cooling temperature, the process proceeds to the next step. Thereafter, the refrigerator room 2 and the vegetable room 4 are similarly operated in this order. When all the detected temperatures of the three temperature detectors 14 to 16 are finally lower than the set cooling temperature of the bottle room 5, the bottle room 5 The operation of cooling is finished.

  In addition, the order of cooling is not restricted to the order of the freezer compartment 3-> refrigerator compartment 2-> vegetable compartment 4, and may be any order (all six kinds exist). In the above cooling method, when the partition wall is centrally cooled, other cold air inlets not used for cooling the partition wall are closed. It is good also as a blowing position (fully opened state).

<Effect of this embodiment>
According to the refrigerator 100 according to the present embodiment configured as described above, since the bottle chamber 5 that does not have the cold air introduction port is cooled through the partition wall, the cold air introduction pipe to the bottle chamber 5 is unnecessary. It is possible to increase the internal volume of the bottle chamber 5. Moreover, since the cold is directly applied to the partition walls W1 to W3 between the bottle chamber 5 and each of the rooms 2 to 4, the partition walls W1 to W3 between the bottle chamber 5 and each of the rooms 2 to 4 are provided. It functions as a cooling plate, and the bottle chamber 5 can be efficiently cooled via the partition walls W1 to W3. Furthermore, since the partition walls W1 to W3 are centrally cooled by applying cold air to the partition walls W1 to W3 between the bottle chamber 5 and the rooms 2 to 4, the rise in the wall temperature of the partition walls W1 to W3 is suppressed. be able to. Thereby, the temperature influence received from the bottle chamber 5 through the partition walls W1-W3 can be reduced, and the indoor temperature distribution of each of the refrigerator compartment 2, the freezer compartment 3, and the vegetable compartment 4 can be made uniform, and preservation of food can be achieved. It can be performed stably.

<Other modified embodiments>
The present invention is not limited to the above embodiment.
For example, in the said embodiment, the 1st storage room was the refrigerator compartment 2, the freezer compartment 3, and the vegetable room 4, and the 2nd storage room was the bottle room 5, but it is not restricted to this, It can set suitably. . In consideration of cooling the second storage chamber, it is desirable that the set cooling temperature of the second storage chamber is higher than the set cooling temperature of the first storage chamber.

  In the embodiment, there are a plurality of first storage chambers and a single second storage chamber. However, a plurality of second storage chambers may be provided.

  Furthermore, in the said embodiment, although the cold air inlet closest to the bottle room 5 is used as a cold air outlet among the cold air inlets provided in the freezer compartment 3 and the vegetable compartment 4, a cold air outlet is provided separately from the cold air inlet. May be provided. On the other hand, in the refrigerator compartment 2, a cold air outlet is provided separately from the cold air inlet, but a cold air inlet may be provided in the vicinity of the partition wall and the cold air inlet may be used as the cold air outlet.

  In addition, the movable slats of the above embodiment are formed from a single plate, but may be formed by arranging a plurality of plates in parallel. If it is this, adjustment of the blowing direction of cold air can be performed still more correctly.

  In addition, the moving range of the movable slats and the position for applying the cool air to the partition plate according to the position where the cool air outlet is provided are not limited to the above embodiment and can be set as appropriate.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Refrigerator 2 ... Refrigerator room 3 ... Freezer room 4 ... Vegetable room 5 ... Bottle room 8 ... Cool air inlet 9 of refrigerator room ... Cool air inlet 10 of vegetable room ·············································································································································································· -Temperature detector 15 provided on the partition wall with the refrigerator compartment ... Temperature detector 16 provided on the partition wall with the freezer compartment ... Temperature detector provided on the partition wall with the vegetable compartment

Claims (18)

A refrigerator in which the interior is partitioned by a plurality of partition walls to form a plurality of storage rooms,
A first storage chamber having a cold air inlet for introducing cold air into the room, and a second storage chamber adjacent to the first storage chamber and not having the cold air inlet;
The refrigerator in which the 1st store room is provided with the cold air blower outlet which blows off and blows cool air toward the partition wall between the said 1st store room and the said 2nd store room.   The refrigerator according to claim 1, wherein a movable slat is provided at the cold air outlet.   In the first storage chamber cooling operation for cooling the first storage chamber, the movable slat faces the first storage chamber side or closes the cold air outlet and opens the second storage chamber. The refrigerator according to claim 2, which faces the partition wall between the first storage chamber and the second storage chamber during the cooling operation of the second storage chamber to be cooled.   The refrigerator according to any one of claims 1 to 3, wherein a cold air inlet provided in the first storage chamber also serves as the cold air outlet.   The refrigerator according to claim 4, wherein when the first storage chamber has a plurality of cold air inlets, at least the cold air inlet closest to the second storage chamber functions as the cold air outlet.   The refrigerator according to any one of claims 1 to 5, wherein a partition wall between the first storage chamber and the second storage chamber is a cooling plate.   The refrigerator in any one of Claim 1 thru | or 6 by which the temperature detection part is provided in the partition wall between the said 1st storage chamber and the said 2nd storage chamber.   The refrigerator according to any one of claims 1 to 7, wherein a plurality of first storage rooms are formed adjacent to the second storage room.   The refrigerator according to any one of claims 1 to 8, wherein a thickness of a partition wall between the first storage chamber and the second storage chamber is different for each type of the adjacent first storage chamber.   The refrigerator according to any one of claims 1 to 9, wherein the second storage chamber is a bottle chamber that houses and cools bottles.   The refrigerator according to any one of claims 1 to 10, wherein the second storage chamber has a set cooling temperature higher than that of the first storage chamber. The first storage room is a refrigerator room, a freezer room and a vegetable room;
The second storage chamber is a bottle chamber for storing and cooling the bottle;
The refrigerator compartment is formed at the uppermost part in the refrigerator, and the freezer compartment is formed at the lowermost part in the refrigerator, and the vegetable compartment and the bottle compartment are arranged between the refrigerator compartment and the freezer compartment. The refrigerator according to any one of claims 1 to 11, wherein the refrigerator is formed.   A temperature detection unit is provided in each of a partition wall between the bottle chamber and the refrigerator compartment, a partition wall between the bottle chamber and the freezer compartment, and a partition wall between the bottle chamber and the vegetable compartment. Item 13. The refrigerator according to Item 12. A refrigerator cooling method comprising: a first storage chamber having a cold air inlet for introducing cold air into the room; and a second storage chamber adjacent to the first storage chamber and not having the cold air inlet. Because
Providing a cold air outlet for blowing out cold air toward the partition wall between the first storage chamber and the second storage chamber;
The cooling method of the refrigerator which cools the said partition wall by applying cold air to the said partition wall by the said cool air blower outlet, and cools the said 2nd storage chamber via the said partition wall. A movable slat is provided at the cold air outlet,
In the first storage chamber cooling operation for cooling the first storage chamber, the movable slat faces the first storage chamber side or closes the cold air outlet and opens the second storage chamber. The cooling method of the refrigerator of Claim 14 which controls so that the partition wall between the said 1st store room and the said 2nd store room may be faced at the time of the 2nd store room cooling operation to cool.   When the temperature detection part is provided in the partition wall between the first storage room and the second storage room, and the detected temperature of the temperature detection part is equal to or higher than the set cooling temperature of the second storage room The cooling method for a refrigerator according to claim 14 or 15, wherein cold air is applied to the partition wall by the cold air outlet.   The cooling method of the refrigerator in any one of Claims 14 thru | or 16 with which the cold air inlet provided in the said 1st storage chamber serves as the said cold air blower outlet.   The cooling method for a refrigerator according to claim 17, wherein when the first storage chamber has a plurality of cold air inlets, at least the cold air inlet closest to the second storage chamber is used as the cold air outlet.