TW202242330A - Refrigerator - Google Patents

Abstract

A refrigerator is provide with: a case body, which is formed with a storage space and an opening part; a partition wall, which divides the storage space into an upper space and a lower space; a door leaf for opening and closing the opening part; wherein a plurality of storerooms are formed by the partition wall and case in the storage space; the plurality of storerooms are provided with a first storeroom which is located above the partition wall, and a second storeroom which is located below the partition wall; the temperature in the first storeroom is set higher than the temperature in the second storeroom; the door leaf is one piece door leaf which opens and closes the first storeroom and the second storeroom at the same time and includes an upper protrusion protruding from a surface of the door leaf toward the storage space side; when the door leaf is closed, inside the case body, a gap is formed between the partition wall and the door leaf and between the partition wall and the upper protrusion, and the first storeroom and the second storeroom are communicated by the gap; when the door leaf is closed, the upper protrusion is disposed above the partition wall in a manner of being separated from the partition wall by a gap, and is formed extending left and right along the direction in which the partition wall extends when viewed from the front. In addition, it is formed so that a part of the front-end side of the upper protrusion in the protruding direction overlaps with the partition wall when viewed from the top.

Description

refrigerator

This disclosure relates to a refrigerator with a plurality of storage compartments.

Most of the refrigerators in the past were equipped with a door leaf with respect to a storage room partitioned by a partition wall, but a refrigerator with a door leaf only provided with a storage room separated into two has been proposed (for example, refer to Patent Document 1). The refrigerator of Patent Document 1 is equipped with a door leaf with respect to two storage rooms that are cooled by direct cooling and indirect cooling in a temperature range that is closer. [Prior Art Literature] [Patent Document]

Patent Document 1: Japanese Patent Laid-Open No. 2011-208806

[Problems to be Solved by the Invention]

The refrigerator of Patent Document 1 describes that a door leaf and a partition wall are used to close the refrigerator compartment and the storage room in the temperature zone close to the refrigerator compartment, and the packing on the outer periphery of the storage room is not required. However, the refrigerator of Patent Document 1 does not specify the temperature comparison of each storage room. When the temperature of the storage room below is higher and the temperature of the storage room above is lower, a natural gap will be generated between the partition wall and the door leaf. Heat transfer between storage rooms by convection will make it difficult to control the temperature of each storage room.

The present disclosure is intended to solve the above-mentioned problems, and an object thereof is to provide a refrigerator having a single door for at least two storage rooms, which can suppress heat transfer between the storage rooms with a simple structure. [means used to solve a problem]

The refrigerator disclosed in the present disclosure is provided with: a box body, forming a storage space for storing storage items inside, and forming an opening for putting storage items in and out of the storage space on the front; The space divided into upper and lower; and the door leaf, which is set in front of the storage space, and opens and closes the opening; in the storage space, a plurality of storage rooms are formed by the box body and the partition wall; the plurality of storage rooms have: A storage room is located above with respect to the partition wall; and a second storage room is located below with respect to the partition wall; the first storage room is set to a higher temperature than the second storage room; the door leaf is simultaneously opened and closed for the first storage room and a door leaf of the second storage room, and has an upper protrusion protruding from the storage space side surface of the door leaf; A gap is formed between them, and the first storage room and the second storage room are connected through the gap; when the door leaf is closed, the upper protrusion is arranged above the partition wall with a gap between the partition wall and forms a It extends left and right along the direction in which the partition wall extends when viewed from the front, and is formed so that a part of the front end side of the protruding direction of the upper protrusion overlaps the partition wall when viewed from above. [Efficacy of Invention]

The refrigerator according to the present disclosure has a first storage room located above the partition wall and a second storage room located below the partition wall, and the temperature of the first storage room is set higher than that of the second storage room. In addition, the door is a single door for simultaneously opening and closing the first storage room and the second storage room, and has an upper protrusion projecting from a surface of the door on the side of the storage space. Furthermore, when the door leaf is closed, the upper protrusion is disposed above the partition wall with a gap from the partition wall, and is formed to extend left and right along the direction in which the partition wall extends when viewed from the front, and is formed as A part of the front end side of the protrusion direction of the upper protrusion overlaps with the partition wall in plan view. The refrigerator increases the resistance to the cold air flowing between the upper and lower storage compartments through the upper protrusion, so as to restrain the movement of the cold air. In addition, the refrigerator sets the temperature of the first freezer compartment at the top higher than that of the second freezer compartment at the bottom, so there is almost no storage caused by natural convection between the first freezer compartment and the second freezer compartment. Circulation of cold air between rooms. Therefore, even if the refrigerator has a single door with respect to the two storage compartments of the first freezing compartment and the second freezing compartment, it can be formed by utilizing the temperature setting between the storage compartments and the existence of the upper protrusion. Constructed to suppress the transfer of heat between storage rooms.

Modes for implementing the present disclosure are described below with reference to the drawings. Here, in the drawings below including FIG. 1 , those attached with the same symbols are the same or equivalent, and they are common throughout the entirety of the embodiments described below. In addition, in each embodiment, the same or equivalent parts as those described in the previous embodiment may be given the same reference numerals and their descriptions may be omitted. In addition, the form of the component shown in the whole specification is an illustration, and it is not limited to the form described in a specification. In addition, the following embodiments can be partially combined with each other, even if it is not specifically stated, as long as there is no difficulty in combination in particular.

(implementation type 1) (refrigerator 100) FIG. 1 is a front view of a refrigerator 100 of Embodiment 1. Referring to FIG. FIG. 2 is a front view showing the interior of the refrigerator 100 of Embodiment 1. Referring to FIG. Arrows in the left-right direction shown in FIGS. 1 and 2 show the left-right direction LR of the box 10 , and arrows in the up-down direction show the up-down direction UD of the box 10 . The refrigerator 100 has: a box body 10 constituting the periphery; a partition wall 20 provided inside the box body 10 ; and a door leaf 30 installed on the box body 10 .

(box 10) The box body 10 is formed with a storage space 11 inside for storing objects, and is formed with an opening 12 for putting in and taking out the objects into the storage space 11 on the front. The box body 10 is, for example, an outer box made of steel plate constituting the periphery, and an inner box made of thin-walled hard resin such as ABS resin arranged inside the outer box, and hard urethane is filled between the outer box and the inner box. Insulation materials such as foam (Urethane foam).

(20 next door) The partition wall 20 divides the storage space 11 into upper and lower spaces. The storage space 11 is divided into an upper space and a lower space by a partition wall 20 . The partition wall 20 is formed in a plate shape, and is formed to extend in the depth direction FB (see FIG. 3 ) in the box in the storage space 11 and to extend in the left-right direction LR in the box. That is, the partition wall 20 extends from the inner wall on the back side of the box body 10 to the opening 12 on the front side of the box body 10 in the storage space 11 .

In the storage space 11 , a plurality of storage chambers 13 are formed by the box body 10 and the partition wall 20 . The number of partition walls 20 may be one or plural. The plurality of storage rooms 13 have: the first freezer compartment 14 located above the partition wall 20 ; and the second freezer compartment 15 located below the partition wall 20 .

The first freezing room 14 is the first storage room among the plurality of storage rooms 13 , and the second freezing room 15 is the second storage room among the plurality of storage rooms 13 . The first freezer compartment 14 is provided at a position higher than the second freezer compartment 15 . The first freezer compartment 14 and the second freezer compartment 15 are separated by a first partition wall 21 among the plurality of partition walls 20 .

The plurality of storage rooms 13 may also include a refrigerator room 16 located above the first freezer room 14 and the second freezer room 15 . The refrigerating room 16 is the third storage room among the plurality of storage rooms 13 . The first freezing chamber 14 and the refrigerating chamber 16 are separated by a second partition wall 22 among the plurality of partition walls 20 . In addition, although the refrigerator 100 shown in FIG. 2 has three storage chambers 13, the refrigerator 100 may have more than two storage chambers 13, and the refrigerator 100 at least has a first freezer chamber 14 belonging to the first storage chamber, and a first freezing chamber belonging to the second storage chamber. The second freezer compartment 15 of the two storerooms.

The refrigerator 100 can also be configured to have a plurality of partition walls 20, the storage space 11 has a plurality of storage rooms 13 including a first storage room and a second storage room separated by a plurality of partition walls 20, and a plurality of door leaves 30 are opened and closed. storage room13.

In the first partition wall 21, a heater 80 (refer to FIG. 3) described later is installed so that the temperature of the first freezing compartment 14 can be controlled in detail. The heater 80 is capable of radiating heat to heat stored items such as food. The heater 80 is set above the first partition wall 21 . The temperature of the heater 80 is controlled by the control device 40 . The refrigerator 100 is equipped with a heater 80 on the partition wall 21 of the first section, so that the temperature of the first freezer compartment 14 can be controlled in detail, and the temperature relationship between the first freezer compartment 14 and the second freezer compartment 15 will not be changed.

The temperature of the first freezer compartment 14 is set higher than that of the second freezer compartment 15 by the control device 40 . In other words, the temperature of the second freezer compartment 15 is set to be lower than that of the first freezer compartment 14 by the control device 40 . In addition, in FIG. 1 , although the control device 40 is provided in the door 30 , the position where the control device 40 is installed is not limited to the door 30 , and may be provided in the box 10 .

The control device 40 is, for example, a CPU (Central Processing Unit, also known as a central processing unit, a processing device, a computing device, or a microprocessor) that executes a program stored in a memory by dedicated hardware (hardware). , Processor (processor)).

The first freezer compartment 14 is controlled by the control device 40 to maintain a supercooled state in which storage items such as food do not freeze even at temperatures below the freezing point. The first freezer compartment 14 may also be a supercooled compartment whose temperature is adjusted within a temperature range of -15° C. or lower below the freezing point. Alternatively, the first freezing chamber 14 can also be set as a cooling chamber, which is controlled to a temperature range of -5°C or lower and -7°C or higher, and stores such as food are frozen so that they can be frozen with a kitchen knife or with human hands, etc. A state of freezing to the extent that it is divided into small parts.

When the first freezer compartment 14 is a supercooled compartment, the first freezer compartment 14 will utilize the cold air sent by the cooler 51 (refer to FIG. 3 ) described later and store the stored items for at least a certain period of time (for example, more than 5 seconds). It is a supercooled state that does not freeze even if the stored product is at a temperature below the freezing point. When the first freezer compartment 14 is a supercooled compartment, temperature control is performed to change the cooling temperature step by step in the first freezer compartment 14, so as to reduce the direct blowing of cold air on the stored goods and make the temperature in the box uniform.

The refrigerator 100 freezes stored items by supercooling in the first freezer compartment 14, so that the use of the freezer compartment varies with stored items, such as meat, fish, or vegetables that are to be preserved as unused. Those who can lose the local flavor of food are preserved in the first freezing chamber 14. In addition, the refrigerator 100 can store other stored items such as frozen food in the second freezer compartment 15, so that appropriate stored items according to the user's usage can be stored.

Alternatively, the refrigerator 100 is equipped with a temperature adjustment mechanism such as a cooler 51 or a heater 80, and a control device 40 for controlling the temperature adjustment mechanism, and the refrigerator 100 may also have the first freezer compartment 14 capable of keeping the storage in a supercooled state. cold room. The temperature adjustment mechanism is controlled to cool or heat the inside of the box by means of the cooler 51 or the heater 80 . At this time, the control device 40 has, for example, a first step and a second step, and controls the temperature adjustment mechanism to start the second step as the first step is completed.

In the first step, the control device 40 sets the set temperature of the first freezer compartment 14 belonging to the cold storage compartment to a low-temperature side set temperature θL lower than the freezing point of the stored items during the first predetermined time T1. The control device 40 switches to the high-temperature-side set temperature θH higher than the freezing point after the first predetermined time T1 has elapsed, and sets the high-temperature-side set temperature θH during the second predetermined time T2. After the control device 40 is switched to the high-temperature side set temperature θH, air higher than the air in the first freezer compartment 14 is introduced into the first freezer compartment 14 from the freezer compartment 16 or the vegetable compartment (not shown), whereby the The storage is thawed. In the second step, the control device 40 switches the set temperature to the low temperature set temperature θL again after the second predetermined time T2 has elapsed, and maintains the inside of the first freezer compartment 14 at the low temperature set temperature θL.

In the refrigerator 100, the first freezer compartment 14 is used as a cold storage compartment that can keep the stored goods in a supercooled state, so that food such as meat or fish does not need to be frozen, and can maintain freshness for a longer period of time than the refrigerator compartment 16. The refrigerator 100 can be used by dividing the first freezer compartment 14 into a freezer compartment and a cold storage compartment according to the preservation period of the stored goods.

The refrigerator 100 may also have more than two partition walls 20 , and the refrigerator 100 is formed with more than two divided storage rooms 13 . The refrigerator 100 can also add a partition wall 20 to the first freezer compartment 14 or the second freezer compartment 15 to provide three compartments: a freezer compartment, a subcooling compartment, and a cold storage compartment. Alternatively, the refrigerator 100 can also add a partition wall 20 to the first freezer compartment 14 or the second freezer compartment 15 to provide more than three storage compartments 13 .

(door leaf 30) The door 30 is provided in front of the storage space 11 and is used to open and close the opening 12 of the box body 10 . The door 30 has a freezer door 31 and a refrigerator door 32 . Freezer compartment door 31 and refrigerator compartment door 32 are rotatably supported by housing 10 .

The freezer door 31 is a door leaf 30 that simultaneously opens and closes the first freezer 14 belonging to the first storage room and the second freezer 15 belonging to the second storage. That is, the freezer door 31 is the common door 30 of the first freezer 14 and the second freezer 15, and is a door 30 that opens and closes the opening 12 formed in the front of the first freezer 14 and the second freezer 15. .

The refrigerating room door 32 is a door 30 for opening and closing the refrigerating room 16 , and is a door 30 for opening and closing the opening 12 formed in the front of the refrigerating room 16 . In addition, when the storage compartment 13 of the refrigerator 100 is formed only by the first freezer compartment 14 and the second freezer compartment 15 , the door 30 may be constituted only by the freezer compartment door 31 . In addition, the detailed structure of the door leaf 30 is demonstrated later.

(Internal configuration of the refrigerator 100) FIG. 3 is a schematic longitudinal sectional view of the refrigerator 100 of Embodiment 1 along the line A-A in FIG. 1 . FIG. 4 is a cross-sectional view of the refrigerator 100 of Embodiment 1 along the line B-B in FIG. 2 , and is a schematic diagram with the freezer door 31 added. The arrows in the left-right direction shown in FIG. 3 and the arrows in the front-back direction shown in FIG. 4 indicate the depth direction FB of the housing 10 . The internal structure of the refrigerator 100 is further described using FIG. 3 and FIG. 4 . As shown in FIG. 3 , a cooling chamber 61 is formed on the back side of the inside of the box body 10 , and the space in the box body 10 is divided into the storage space 11 and the cooling room 61 by the partition plate 25 .

In the cooling chamber 61, the cooler 51, the blower fan 52, etc. are arrange|positioned. The refrigerator 100 sends cold air cooled by the cooler 51 from the cooling chamber 61 to the storage room 13 through the blower fan 52, thereby cooling the storage room 13. The cooler 51 is disposed below the first partition wall 21 between the first freezer compartment 14 and the second freezer compartment 15 .

The cold air generated by the cooler 51 is blown out from the cooling chamber 61 by the blower fan 52 , and is supplied to the refrigerating chamber 16 through the refrigerating chamber blowing air passage 62 through the first damper 53 . In addition, the cold air produced by the cooler 51 is blown out from the cooling chamber 61 by the blower fan 52, and passes through the first freezing chamber blowing air passage 63 and the second freezing chamber blowing air passage 64 through the second damper 54 (refer to 4 ) and supplied to the first freezer compartment 14 .

The first damper 53 and the second damper 54 have dampers (not shown) for opening and closing the air passage, and the control device 40 is used to open and close the dampers to adjust the amount of cool air flowing in the air passage. The cold air generated by the cooler 51 is sent out by the blower fan 52 , and the temperature of each storage room 13 is controlled by opening and closing of the first damper 53 and the second damper 54 .

In addition, cold air generated by the cooler 51 is blown out from the cooling chamber 61 by the blower fan 52 , and is directly supplied to the second freezing chamber 15 . The cold air supplied to the refrigerating chamber 16 and the first freezing chamber 14 is returned to the cooling chamber through the refrigerating chamber return air passage 65 shown in FIG. 4 , the first freezing chamber returning air passage 66 and the second freezing chamber returning air passage 67 Room 61. The refrigerating chamber return air path 65 is a flow path for the cold air flowing out from the refrigerating chamber 16 to pass through, and the first freezing chamber returning air path 66 and the second freezing chamber returning air path 67 are for the cold air flowing out from the first freezing chamber 14 to pass through. flow path.

As shown in FIGS. 2 and 4 , a first storage case 91 and a second storage case 92 are stored in the first freezer compartment 14 . As shown in FIG. 4 , first storage box 91 and second storage box 92 are arranged side by side in first freezer compartment 14 . Moreover, the 3rd storage box 95 is accommodated in the 2nd freezer compartment 15. As shown in FIG.

The first storage box 91, the second storage box 92, and the third storage box 95 are boxes for storing storage items such as food inside. In addition, boxes for storing storage items such as food inside like the first storage box 91 , the second storage box 92 , and the third storage box 95 may be collectively referred to as storage boxes 90 . In addition, the storage box 90 is preferably stored in each storage room 13 , and the storage box 90 may be stored in the refrigerator room 16 , for example.

The storage boxes 90 such as the first storage box 91, the second storage box 92 and the third storage box 95 are preferably transparent. Therefore, when the user opens the freezer compartment door 31 , he can recognize the storage items in the storage box 90 . In addition, the storage boxes 90 are preferably boxes in which the front of each storage box 90 covers the entire entrance of the storage room 13 when viewing the refrigerator 100 from the front, and partitions the inside of the box from the outside of the box. In this way, the refrigerator 100 is preferably a drawer-type door provided with a storage box, and the storage box is not pulled out when the door is opened.

The first outlet 71, which becomes the outlet of the cold air which cools the first storage box 91, is formed at a lower side than the first storage box 91 when the refrigerator 100 is viewed from the front, that is, when the first outlet 71 is viewed from the front. The upper right side of the center. The first air outlet 71 is an air outlet for blowing out cold air in the air path 63 from the first freezer compartment.

The second outlet 72, which becomes the outlet of the cold air which cools the second storage box 92, is formed on the side of the second storage box 92 when the refrigerator 100 is viewed from the front, that is, when the second outlet 72 is viewed from the front. The upper left of the center. The second air outlet 72 is an air outlet for blowing out the cold air in the air path 64 from the second freezer compartment. Moreover, the 1st outlet 71 and the 2nd outlet 72 are formed in the vicinity of the center of the refrigerator 100 in the left-right direction LR of the cabinet 10. As shown in FIG.

In the first storage box 91, in order to ensure that the cold air blown out from the first air outlet 71 is sent back to the return air path F1 of the first return port 73 belonging to the return port of the cold air, a system is formed in the first storage box 91. The first air hole 93 . The first return port 73 is the inflow port of the cold air in the return air path 66 of the first freezer compartment. In the first freezer compartment 14 , the first return port 73 is formed on the back side of the first ventilation hole 93 .

The first ventilation hole 93 is a through hole formed in the first storage box 91 . The first ventilation hole 93 is formed on the left side of the first storage box 91 in the left-right direction LR of the box body 10 . In the refrigerator 100 of Embodiment 1, the first storage box 91 is arranged on the left side with respect to the second storage box 92, and the first ventilation hole 93 is formed on the side opposite to the side where the second storage box 92 is arranged. .

Moreover, the 1st ventilation hole 93 is formed in the depth direction FB of the box body 10 in the back side rather than the center part of the 1st storage box 91. As shown in FIG. Moreover, the 1st ventilation hole 93 is formed in the lower side than the center part of the 1st storage box 91 in the up-down direction UD of the box body 10. As shown in FIG.

In the second storage box 92, in order to ensure that the cold air blown out from the second air outlet 72 is sent back to the return air path F2 of the second return port 74 belonging to the return port of the cold air, a system is formed in the second storage box 92. The second vent hole 94 . The second return port 74 is the inflow port of the cold air in the return air path 67 of the second freezer compartment. In the first freezer compartment 14 , the second return port 74 is formed on the rear side of the second ventilation hole 94 .

The second ventilation hole 94 is a through hole formed in the second storage box 92 . The second ventilation hole 94 is formed on the right side of the second storage box 92 in the left-right direction LR of the box body 10 . In the refrigerator 100 of Embodiment 1, the second storage box 92 is arranged on the right side with respect to the first storage box 91 , and the second ventilation hole 94 is formed on the side opposite to the side where the first storage box 91 is arranged. That is, a vent hole such as the first vent hole 93 or the second vent hole 94 is formed on either side of the storage box 90 in the left-right direction LR of the box body 10 .

Moreover, the 2nd ventilation hole 94 is formed in the depth direction FB of the housing|casing 10 in the back side rather than the center side of the 2nd storage box 92. As shown in FIG. Moreover, the 2nd ventilation hole 94 is formed in the lower side than the center part of the 2nd storage box 92 in the up-down direction UD of the housing|casing 10. As shown in FIG.

The flow of cold air flowing inside the first freezer compartment 14 will now be described using FIG. 4 . The cool air blown out from the first outlet 71 into the first storage box 91 flows into the first refrigeration unit through the first ventilation hole 93 formed in the first storage box 91 after circulating in the first storage box 91 . The first return port 73 connected to the return air path 66 of the chamber. The return air path F1 shown in FIG. 4 shows the flow of cold air flowing in the first storage box 91 .

The cold air blown from the second outlet 72 into the second storage box 92 flows into the second refrigeration unit 92 through the second air hole 94 formed in the second storage box 92 after circulating in the second storage box 92 . The second return port 74 connected to the room return air path 67. The return air path F2 shown in FIG. 4 shows the flow of cold air flowing in the second storage box 92 .

In the first freezer compartment 14, the first blower outlet 71 and the first vent hole 93 are disposed at opposite angles when viewed from the front of the first freezer compartment 14, so that cold air can be widely circulated, so the refrigerator 100 can be used The temperature distribution in the first storage box 91 is suppressed to be small. Similarly, in the first freezer compartment 14, the second air outlet 72 and the second vent hole 94 are arranged at diagonals when viewed from the front of the first freezer compartment 14, so that cold air can be circulated in a wide range, so the refrigerator The 100 series can suppress the temperature distribution in the second storage box 92 to be small.

The refrigerator 100 is provided with a first return port 73 connected to the first freezer compartment return air path 66 on the back side of the first ventilation hole 93, so that the cold air from the first storage box 91 flows in a straight line through the first return port 73. . Similarly, the refrigerator 100 is provided with the second return port 74 connected to the second freezer compartment return air path 67 on the back side of the second ventilation hole 94, so that the cold air coming out from the second storage box 92 flows in a straight line to the second freezer compartment. Return to port 74. Therefore, refrigerator 100 can suppress pressure loss, and can realize an efficient air path.

As will be described later, the refrigerator 100 is sealed between the first partition wall 21 and the freezer door 31 by a gasket (gasket), and a gap 70 is formed between the first partition wall 21 and the freezer door 31 (refer to image 3). In the refrigerator 100 , the first ventilation hole 93 of the first storage box 91 is located behind the first storage box 91 , so the cold air in the first freezer compartment 14 is difficult to flow into the second freezer compartment 15 through the gap 70 . Similarly, the refrigerator 100 is provided with the second ventilation hole 94 of the second storage box 92 at the rear of the second storage box 92 , so the cold air in the first freezer compartment 14 is difficult to flow into the second freezer compartment 15 .

(details of door leaf 30) Fig. 5 is a conceptual diagram of the door 30 of the refrigerator 100 according to Embodiment 1 viewed from the inside of the box. Hereinafter, the details of the door 30, especially the details of the freezer compartment door 31 will be described using FIG. 5 . The door 30 has a freezer door 31 and a refrigerator door 32 . In addition, as described above, the door 30 may be constituted by only the freezer door 31 .

The freezer door 31 has a freezer gasket 33 . The freezer gasket 33 is mounted on the outer edge of the back side of the freezer door 31. When the freezer door 31 is closed, the freezer gasket 33 is in close contact with the peripheral edge 12a of the opening 12 forming the casing 10 (see Fig. 3 and Figure 3) and the second partition wall 22.

The freezer gasket 33 is tightly attached to the peripheral portion 12a and the second partition wall 22, thereby closing the gap between the casing 10 and the first freezer 14 and the second freezer 15, so as to prevent cold air from leaking to out of the box. The freezer gasket 33 is tightly attached to the peripheral portion 12a and the second partition wall 22, thereby sealing the opening 12 of the first freezer 14 and the second freezer 15, and closing the first freezer 14 and the second freezer. 15 remain as confined spaces.

The refrigerator compartment door 32 has a refrigerator compartment gasket 34 . The refrigerating room gasket 34 is installed on the outer edge of the back side of the refrigerating room door 32. When the refrigerating room door 32 is closed, the refrigerating room gasket 34 is closely attached to the peripheral edge 12a and the second edge of the opening 12 forming the casing 10. Partition wall 22.

The refrigerating room gasket 34 is tightly attached to the peripheral portion 12a and the second partition wall 22, thereby closing the gap between the box body 10 and the refrigerating room 16, so as to prevent cold air from leaking out of the box through the gap. The refrigerating room gasket 34 is closely attached to the peripheral portion 12a and the second partition wall 22, thereby sealing the opening 12 of the refrigerating room 16 and keeping the refrigerating room 16 as an airtight space.

As shown in FIGS. 3 and 4 , in the storage space 11 of the refrigerator 100 , no gasket is provided between the first partition wall 21 separating the first freezer compartment 14 and the second freezer compartment 15 and the freezer compartment door 31 . That is, the refrigerator 100 does not use a gasket to seal between the first section partition wall 21 and the freezer door 31 , and a gap 70 is formed between the first section partition wall 21 and the freezer door 31 . The refrigerator 100 communicates with the first freezing room 14 belonging to the first storage room and the second freezing room 15 belonging to the second storage room through the gap 70 .

Although the first freezer compartment 14 and the second freezer compartment 15 are separated by the first partition wall 21, because they are not sealed by gaskets between the first partition wall 21 and the freezer door leaf 31, they are not completely airtight, but It is possible to circulate cold air between the first freezer compartment 14 and the second freezer compartment 15 . However, regarding the relationship of the temperature of each store room 13, the temperature of the 1st freezer room 14 located above is set to the temperature higher than the 2nd freezer room 15 located below. Therefore, between the first freezer compartment 14 and the second freezer compartment 15, the circulation of cold air between the storage compartments 13 due to natural convection hardly occurs.

Fig. 6 is an enlarged view of part C in Fig. 3 when the refrigerator 100 according to Embodiment 1 does not include the heater 80. The part C is the part facing the front edge part 21a of the freezer compartment door 31 and the 1st partition wall 21. As shown in FIG. Moreover, the front edge part 21a of the 1st partition wall 21 is the end part by the side of the opening part 12 in the depth direction FB of the case 10. As shown in FIG. Hereinafter, the structure of the freezer compartment door 31 will be further described using FIG. 6 and FIG. 5 .

(upper protrusion 35) The freezer door 31 has an upper protrusion 35 protruding from the surface of the freezer door 31 on the storage space 11 side. The upper protrusion part 35 is provided in the back surface 31a which becomes the inside of the box of the freezer door 31, and protrudes along the depth direction FB of the box body 10. As shown in FIG. That is, the upper protrusion part 35 is formed in the back surface 31a of the freezer compartment door 31 as a convex part. The upper protrusion 35 is disposed above the first section partition wall 21 with a gap 70a from the first section partition wall 21 when the freezer compartment door 31 is closed. The upper protrusion 35 may be integrally formed with the freezer door 31 by resin molding, or may be formed by a member different from the freezer door 31 .

The upper protrusion 35 is formed such that the direction in which the base portion 35a extends is parallel to the direction in which the first partition wall 21 extends in the left-right direction LR of the cabinet 10 when the freezer compartment door 31 is closed. The base part 35a is the junction part of the upper protrusion part 35 and the back surface 31a of the freezer compartment door 31, and is a base part. The direction in which the first partition wall 21 extends is the left-right direction LR when viewed from the front. That is, the upper protrusion 35 is formed to extend left and right along the direction in which the first partition wall 21 extends when viewed from the front. In addition, the upper protrusion 35 is preferably formed parallel to the first partition wall 21 when viewed from the front, but it does not have to be strictly parallel, and may be substantially parallel. The upper protrusion 35 is a rib-shaped portion provided on the back surface 31a of the freezer door 31, and is a prism-shaped portion extending in the left-right direction LR of the box body 10.

(lower protrusion 36) The freezer door 31 has a lower protrusion 36 protruding from the surface of the freezer door 31 on the storage space 11 side. The lower protrusion part 36 is provided in the back surface 31a which becomes the inside of the box of the freezer door 31, and protrudes so that it may extend toward the depth direction FB of the box body 10. As shown in FIG. That is, the lower protrusion part 36 is formed in the back surface 31a of the freezer compartment door 31 as a convex part. The lower protrusion 36 is disposed below the first section partition wall 21 with a gap 70b from the first section partition wall 21 when the freezer compartment door 31 is closed. The lower protrusion 36 may be integrally formed with the freezer door 31 by resin molding, or may be formed by a member different from the freezer door 31 .

The lower protrusion 36 is formed such that the direction in which the base portion 36a extends is parallel to the direction in which the first partition wall 21 extends in the left-right direction LR of the cabinet 10 when the freezer compartment door 31 is closed. The base portion 36a is the joining portion between the lower protrusion 36 and the back surface 31a of the freezer door 31, that is, the base portion. The lower protrusion 36 is formed to extend left and right along the direction in which the first partition wall 21 extends when viewed from the front. In addition, the lower protrusion 36 is preferably formed parallel to the first partition wall 21 when viewed from the front, but it does not have to be strictly parallel, and may be substantially parallel. The lower protrusion 36 is a rib-shaped portion provided on the back surface 31 a of the freezer door 31 , and is a prism-shaped portion extending in the left-right direction LR of the box body 10 .

7 is a horizontal cross-sectional view of the position above the upper protrusion 35 of the first freezer compartment 14 of the refrigerator 100 of the first embodiment. In addition, in FIG. 7, the front edge part 21a of the 1st partition wall 21 located below the upper protrusion part 35 is shown by the dotted line. When the refrigerator 100 is viewed in a cross-sectional view in the depth direction, the upper protrusion 35 extends from the back surface 31a of the freezer door 31 in the depth direction FB to a position where the front end 35b in the protruding direction overlaps the first section partition wall 21 . That is, the upper protrusion 35 is formed so that a part of the front end side of the upper protrusion 35 in the protruding direction overlaps the first partition wall 21 in plan view.

Similarly, as shown in FIG. 6 , the lower protrusion 36 extends from the back surface 31 a of the freezer door 31 in the depth direction FB to a position where the front end 36 b of the protruding direction overlaps the first partition wall 21 . That is, the lower protrusion 36 is formed so that a part of the front end side of the lower protrusion 36 in the protruding direction overlaps the first partition wall 21 when viewing the refrigerator 100 in a longitudinal sectional view or in a plan view.

When the freezer door 31 is closed, the lower surface of the upper protrusion 35 is separated from the upper surface of the first partition wall 21 . In addition, when the freezing compartment door 31 is closed, the upper surface of the lower protrusion 36 is separated from the lower surface of the first partition wall 21 . As shown in FIG. 6 , when the freezer door 31 is closed, a gap 70 a is formed between the upper protrusion 35 and the first partition wall 21 . In addition, when the freezing compartment door 31 is closed, a gap 70b is formed between the lower protrusion 36 and the first partition wall 21 .

Refrigerator 100 is when the freezer door 31 is closed, in the up and down direction UD, in the mode of separating the first partition wall 21, the upper protrusion 35 is arranged above the first partition wall 21, and the first partition wall 21 A lower protrusion 36 is arranged below. Upper protrusion 35 and lower protrusion 36 are protrusions extending from back surface 31a of freezer compartment door 31 in depth direction FB.

As described above, in the refrigerator 100 , when the freezer door 31 is closed, a gap 70 is formed between the first partition wall 21 and the freezer door 31 inside the cabinet 10 . In addition, when the freezer compartment door 31 is closed, a gap 70 a is formed between the first partition wall 21 and the upper protrusion 35 inside the box body 10 . In the refrigerator 100, the first freezer compartment 14 belonging to the first storage compartment and the second freezer compartment 15 belonging to the second storage compartment are connected through the gap 70 and the gap 70a.

In addition, as described above, in the refrigerator 100 , when the freezer door 31 is closed, a gap 70 is formed between the first partition wall 21 and the freezer door 31 inside the cabinet 10 . In addition, when the freezer compartment door 31 is closed, a gap 70 b is formed between the first partition wall 21 and the lower protrusion 36 inside the box body 10 . In the refrigerator 100, the first freezer compartment 14 belonging to the first storage compartment and the second freezer compartment 15 belonging to the second storage compartment are connected through the gap 70 and the gap 70b.

The refrigerator system has an upper protrusion 35 and a lower protrusion 36, whereby, when the freezer door 31 is closed, as shown in FIG. It is a U-shape inclined at 90 degrees. The gap 70c is formed by the gap 70a, the gap 70, and the gap 70b.

As shown in FIGS. 2 and 4 , a first storage box 91 and a second storage box 92 are accommodated in the first freezer compartment 14 . A part of the cool air blown out from the first outlet 71 and the second outlet 72 of the first freezer compartment 14 is blown into the first storage box 91 or the second storage box 92 . In addition, a part of the cold air blown out from the first outlet 71 and the second outlet 72 of the first freezer compartment 14 flows between the bottom of the first storage box 91 or the second storage box 92 and the first partition wall 21, and It flows toward the back surface 31 a of the freezer compartment door 31 .

The refrigerator 100 forms a U-shaped gap 70c inclined at 90 degrees in a side view between the first partition wall 21 between the first freezer compartment 14 and the second freezer compartment 15, and the freezer compartment door 31. Refrigerator 100 is that when the cold air wants to pass through the gap 70c, it needs to pass through the curved part of the U-shaped gap 70c inclined at 90 degrees, so it can reduce the flow rate of cold air flowing in the gap 70c between the freezer door 31 and the partition wall 21 of the first zone. . That is, the refrigerator 100 suppresses heat transfer between the first freezer compartment 14 and the second freezer compartment 15 adjacent to each other in the storage compartment 13 located above and below the first section partition wall 21, so that the first freezer compartment 14 and the second freezer compartment 15 can be separated. In the second freezer compartment 15, independent temperature control is performed respectively.

(sealing ring 42) FIG. 8 is a cross-sectional view of the refrigerator 100 of Embodiment 1 along the line D-D in FIG. 7 . FIG. 8 is an enlarged view showing the configuration of the front portion of the first partition wall 21 and its peripheral portion. As shown in FIG. 8 , a sealing ring 42 may also be installed in the upper protrusion 35 of the freezer door 31 . The upper protrusion 35 has a seal ring 42 in the front end 35b in the protruding direction. The seal ring 42 is formed of, for example, resin.

As shown in FIG. 8 , the seal ring 42 is attached to the front end portion 35 b of the upper protrusion portion 35 . The seal ring 42 is mounted so as to cover part of the upper surface 35b1, the front end surface 35b2, and the lower surface 35b3 of the front end portion 35b of the upper protrusion 35. As shown in FIG. The seal ring 42 is formed to extend in the left-right direction LR. The sealing ring 42 is disposed above the partition wall 21 of the first section when the freezer door 31 is closed.

The sealing ring 42 has: a fixing part 43 mounted on the front end part 35 b of the upper protrusion part 35 ; and a first fin part 44 and a second fin part 45 extending downward from the fixing part 43 . The fixing portion 43 is a member formed in a C-shape in a cross section perpendicular to the longitudinal direction or in a side view. The first fin portion 44 and the second fin portion 45 are thin plate-shaped members. In addition, the first fin portion 44 and the second fin portion 45 may be collectively referred to as the fin portion 50 . The sealing ring 42 has a plurality of fins 50 .

The first fin portion 44 and the second fin portion 45 are located on the lower surface 35b3 side of the upper protrusion portion 35 when the seal ring 42 is attached to the upper protrusion portion 35 . The first fin 44 and the second fin 45 extend from the lower surface 35b3 of the upper protrusion 35 toward the upper surface of the first partition wall 21 when the sealing ring 42 is installed on the upper protrusion 35 .

When the freezer door 31 is closed, the first fin 44 and the second fin 45 are disposed between the upper protrusion 35 and the first partition wall 21 . The first fin 44 and the second fin 45 are formed at different positions in the depth direction FB of the upper protrusion 35 . When the freezer door 31 is closed, in the depth direction FB of the box body 10, the first fin 44 is located on the back side 31a of the freezer door 31, and the second fin 45 is located closer to the first fin 44. The inner side of the first freezer compartment 14. That is, the first fin portion 44 is formed on the base portion 35a side, and the second fin portion 45 is formed on the front end portion 35b side. The first fin portion 44 and the second fin portion 45 are formed to face each other in the depth direction FB.

As shown in FIG. 8 , the first fin portion 44 and the second fin portion 45 extend downward, and the upper and lower fin widths of the first fin portion 44 are longer than that of the second fin portion 45 . In this way, the refrigerator 100 reduces the flow velocity of the cold air through the second fins 45 , and makes it difficult for the cold air to pass between the upper protrusion 35 and the first partition wall 21 through the first fins 44 . In addition, the positional relationship between the first fin portion 44 and the second fin portion 45 can also be exchanged.

In addition, one or both of the first fin portion 44 and the second fin portion 45 can also be bent due to the opening and closing of the freezer door 31, contact with the first partition wall 21, etc., and the first fin portion 44 and the second fin portion The two fins 45 are in contact, and an air layer is formed between the first fin 44 and the second fin 45 . In addition, one of the plurality of fins 50 may be in contact with the upper surface of the first partition wall 21 , and the other of the plurality of fins 50 may be in contact with one of the plurality of fins 50 to form an air layer. That is, the first fin portion 44 may be in contact with the upper surface of the first partition wall 21 , and the second fin portion 45 may be in contact with the first fin portion 44 to form an air layer. More specifically, the upper and lower fin widths of the second fins 45 are longer than those of the first fins 44. The upper surface contacts and bends toward the front, and the front portion contacts the front end of the first fin 44 to form an air layer between the second fin 45 and the first fin 44 . When an air layer is formed between the first fin portion 44 and the second fin portion 45, the heat insulation performance is improved due to the air layer, and temperature control of the storage chambers 13 is effectively performed.

When the sealing ring 42 and the first partition wall 21 may contact when the freezer door 31 is opened and closed, it is preferably the length of the upper and lower fin widths of the first fin 44 and the second fin 45 as described above. different. With such a structure, only the fin 50 of one of the first fin 44 or the second fin 45 can be brought into contact with the first partition wall 21 to smoothly open and close the freezer door 31 .

When the sealing ring 42 is not in contact with the first partition wall 21 when the freezer door 31 is opened or closed, the upper and lower fin widths of the first fin 44 and the second fin 45 may also be equal in length. In addition, when giving priority to heat insulation, both of the first fin portion 44 and the second fin portion 45 may be in contact with the first partition wall 21 when the freezer door 31 is closed. In addition, the number of fins 50 disposed on the sealing ring 42 may be one or three. That is, the sealing ring 42 may only have any one of the first fin portion 44 or the second fin portion 45 .

When the sealing ring 42 is to be installed on the back side 31a of the freezer door 31, the concave part of the fixing part 43 formed in a C-shape when viewed from the side is inserted into the front end 35b of the upper protrusion 35 to seal the seal. The ring 42 is attached to the upper protrusion 35 . By using the front end 35b of the upper protrusion 35 as the installation site of the sealing ring 42, it is easier and easier than the method of forming the installation site of the sealing ring 42 on the back side 31a of the freezer door 31 opposite to the first compartment wall 21. Install the gasket 42.

The gap 70a between the upper protrusion 35 and the first partition wall 21 is about 5 mm. In addition, the gap 70 b between the lower protrusion 36 and the first partition wall 21 is also about 5 mm. The refrigerator 100 has a situation where the upper protrusion 35 and the first partition wall 21 are close to each other due to the sagging of the door 31 caused by the weight of the freezer compartment door 31 . In this case, the sealing ring 42 can also be interposed between the upper protrusion 35 and the first partition wall 21, and the sealing ring 42 can slow down the contact between the upper protrusion 35 and the first partition wall 21 when the freezer door 31 is closed. Damage caused by contact with the first partition wall 21 .

Fig. 9 is an enlarged view of part C in Fig. 3 when the heater 80 is provided in the refrigerator 100 according to the first embodiment. The heater 80 is arranged on the top of the partition wall 21 of the first section, and in the depth direction FB, the end 80a of the heater 80 on the side of the freezer door 31 is located closer to the freezer than the front end 35b of the upper protrusion 35. The door 31 side is located closer to the freezer compartment door 31 than the first fin 44 of the sealing ring 42 . That is, when viewed from the opening 12 side on which the freezer door 31 is arranged in the depth direction FB, the end 80a of the heater 80 on the freezer door 31 side is located at the front end 35b of the upper protrusion 35. It is further to the front side, and is located further to the front side than the first fin portion 44 of the sealing ring 42 .

By setting the arrangement relationship between the heater 80 and the sealing ring 42 as described above, the flow velocity of the cold air is lowered by the first fins 44 and the second fins 45, and the cold air is heated. Therefore, the temperature difference between the temperature around the first fin portion 44 and the temperature on the back side 31a of the freezer compartment door 31 is reduced compared with the situation without this structure in the refrigerator 100, and condensation on the back side 31a of the freezer compartment door 31 can be prevented.

(Lower sealing ring 46) Fig. 10 is an enlarged view of part C in Fig. 3 when the refrigerator 100 of the embodiment is provided with the lower sealing ring 46. In addition, as shown in FIG. 10 , in the refrigerator 100 , the lower gasket 46 may be attached to the lower protrusion 36 so as to cover a part of the front end 36 b of the lower protrusion 36 . The lower protrusion 36 has a lower packing 46 at the front end 36b in the protruding direction. The lower gasket 46 is formed of, for example, resin.

The lower packing 46 is attached so as to cover the upper surface of the front end portion 36 b of the lower protrusion 36 , the front end surface and a part of the lower surface. The lower packing 46 is formed to extend in the left-right direction LR. The lower sealing ring 46 is disposed under the partition wall 21 of the first section when the freezer door 31 is closed.

The lower sealing ring 46 has: a lower fixing portion 47 mounted on the front end portion 36b of the lower protrusion 36; and a lower first fin 48 and a lower second fin 49 extending upward from the lower fixing portion 47. The lower fixing portion 47 is a member formed in a C-shape in a cross section perpendicular to the longitudinal direction or in a side view. The lower first fin portion 48 and the lower second fin portion 49 are thinner plate-shaped members.

The lower first fin portion 48 and the lower second fin portion 49 are located on the upper surface side of the lower protrusion portion 36 when the lower seal ring 46 is attached to the lower protrusion portion 36 . The lower first fin portion 48 and the lower second fin portion 49 extend from the upper side of the lower protrusion portion 36 toward the lower side of the first partition wall 21 when the lower sealing ring 46 is mounted on the lower protrusion portion 36 .

When the freezer door 31 is closed, the lower first fin 48 and the lower second fin 49 are disposed between the lower protrusion 36 and the first partition wall 21 . The lower first fin portion 48 and the lower second fin portion 49 are formed at different positions in the depth direction FB of the lower protrusion portion 36 . When the freezer door 31 is closed, in the depth direction FB of the casing 10, the lower first fin 48 is located on the back side 31a of the freezer door 31, and the lower second fin 49 is located on the lower side than the lower first fin. 48 is closer to the inside of the first freezer compartment 14. That is, the lower first fin portion 48 is formed on the base portion 36a side, and the lower second fin portion 49 is formed on the front end portion 35b side. The lower first fin portion 48 and the lower second fin portion 49 are formed to face each other in the depth direction FB.

As shown in FIG. 10 , the lower first fin 48 and the lower second fin 49 extend upward, and the upper and lower fin widths of the lower first fin 48 are longer than that of the lower second fin 49 . In addition, the positional relationship between the lower first fin portion 48 and the lower second fin portion 49 can also be switched.

One or both of the lower first fin portion 48 and the lower second fin portion 49 can also be bent in contact with the first partition wall 21 by the opening and closing action of the freezer door 31, and the lower first fin portion 48 and the lower portion The second fins 49 are in contact, and an air layer is formed between the lower first fins 48 and the lower second fins 49 . When an air layer is formed between the lower first fin portion 48 and the lower second fin portion 49, the heat insulation performance is improved by the air layer, and temperature control of the storage chambers 13 is effectively performed.

When the lower sealing ring 46 and the first section partition wall 21 have the possibility of contact when the freezer door 31 is opened and closed, it is preferable to use the upper and lower fins above the lower first fin 48 and the lower second fin 49 as described above. The length of the width is different. With this structure, only the fin 50 of one of the lower first fin 48 or the lower second fin 49 can be brought into contact with the first partition wall 21 to smoothly open and close the freezer door 31 .

When the lower sealing ring 46 and the first partition wall 21 are not in contact when the freezer door 31 is opened or closed, the upper and lower fin widths of the lower first fin 48 and the lower second fin 49 can also be equal. In addition, when priority is given to heat insulation, both of the lower first fin 48 and the lower second fin 49 may contact the first partition wall 21 when the freezer door 31 is closed. In addition, the number of fins 50 disposed on the lower sealing ring 46 may be one or three. That is, the lower sealing ring 46 may only have either one of the lower first fin portion 48 or the lower second fin portion 49 .

When the lower sealing ring 46 is to be installed on the back surface 31a of the freezer door 31, the concave portion of the lower fixing portion 47 formed in a C-shape when viewed from the side is inserted into the front end portion 36b of the lower protrusion 36, The lower gasket 46 is attached to the lower protrusion 36 . By using the front end 36b of the lower protrusion 36 as the installation site of the lower sealing ring 46, it is more efficient than the method of forming the installation site of the lower sealing ring 46 on the back side 31a of the freezer door 31 opposite to the first partition wall 21. The lower sealing ring 46 is easily installed.

(The effect of refrigerator 100) The refrigerator 100 has a first freezer compartment 14 located above the first section partition wall 21 and a second freezer compartment 15 located below the first section partition wall 21. The first freezer compartment 14 is set to be lower than the second freezer compartment. 15 high temperature. Further, the freezer door 31 is a single door for simultaneously opening and closing the first freezer 14 and the second freezer 15 , and has an upper protrusion 35 protruding from the surface of the freezer door 31 on the storage space 11 side. Furthermore, when the freezer door 31 is closed, the upper protrusion 35 is disposed above the first section partition wall 21 with a gap 70a from the first section partition wall 21, and is formed along the first section when viewed from the front. The direction in which the partition wall 21 extends extends left and right. In addition, the upper protrusion 35 is formed so that a part of the front end side in the protruding direction of the upper protrusion overlaps the first partition wall 21 in plan view.

The refrigerator 100 uses the upper protrusion 35 to increase the resistance to the cold air flowing between the upper and lower storage compartments 13, so as to restrain the movement of the cold air. In addition, the refrigerator 100 sets the temperature of the first freezer compartment 14 located above to be higher than the temperature of the second freezer compartment 15 located below, so there is almost no natural heating between the first freezer compartment 14 and the second freezer compartment 15 . The circulation of cold air between the storage rooms 13 caused by convection. Therefore, even if the refrigerator 100 is a refrigerator having a door leaf with respect to the two storage chambers 13 of the first freezing chamber 14 and the second freezing chamber 15, it can be adjusted by using the temperature setting between the storage chambers 13 and the upper protrusion 35. There is a simple structure formed to suppress the transfer of heat between the storage chambers 13 .

In addition, the freezer compartment door 31 is rotatably supported by the box body 10, and in the first freezer compartment 14, one or more storage boxes 90 for accommodating storage items are arranged. With the structure of opening and closing two storage chambers 13 with a door leaf 30, for example, when the user opens the door leaf 30 in order to take out frozen food, the cold air of the two storage chambers 13 parts will flow out to the outside of the box, and there will be differences in use. A situation where energy-saving performance deteriorates. In order to improve this situation, the refrigerator 100 is provided with one or more storage boxes 90 in each storage room 13 , and the freezer compartment door 31 is a rotary door 30 .

The refrigerator 100 has storage boxes 90 for storing food in each storage room 13 partitioned by the partition wall 20, and the storage boxes 90 are not pulled out when the door 30 is opened. When the freezer door 31 is opened and closed, cold air in the first freezer compartment 14 and the second freezer compartment 15 can be suppressed from flowing out of the cabinet, and energy-saving performance can be improved. In addition, a storage box 90 is also provided in the storage room 13, so that it is difficult for cold air to flow from the first air outlet 71 and the second air outlet 72 toward the first partition wall 21, and the gap between the storage rooms 13 can be further suppressed. Circulation of cold air. In addition, in order to exert the above-mentioned effects, it is required that the storage box 90 will not be pulled out together with the door leaf 30 when the door leaf 30 is opened. Since the freezer door 31 is a rotary door, the inside of the transparent storage box 90 can be identified when the freezer door 31 is opened, compared with a drawer-type door that cannot confirm the inside without pulling out the storage box 90, it can ensure identification. performance while improving energy-saving performance.

In addition, the interior of the first freezer compartment 14 of the refrigerator 100 is partitioned by the storage box 90 for food preservation, so that the food in the storage box 90 is not easily contacted with the outside air outside the storage box 90 . Therefore, the refrigerator 100 is less likely to be affected by temperature changes even if the circulation of cold air occurs between the first freezer compartment 14 and the second freezer compartment 15 , and has a structure in which odors are not easily migrated.

In addition, the interior of the first freezer compartment 14 of the refrigerator 100 is separated by the storage box 90 for food preservation, thereby suppressing the cold air circulation between the storage compartments 13, and preventing the cold air from flowing out of the freezer compartment when the door leaf 31 is opened. Therefore, the energy-saving performance can be improved, and the cooling quality can be improved.

Moreover, the 1st ventilation hole 93 which is a through hole is formed in the 1st storage box 91. As shown in FIG. The first ventilation hole 93 is formed on the left side of the first storage box 91 in the left-right direction LR of the box body 10 . Moreover, the 1st ventilation hole 93 is formed in the depth direction FB of the box body 10 in the back side rather than the center part of the 1st storage box 91. As shown in FIG. Moreover, the 1st ventilation hole 93 is formed in the lower side than the center part of the 1st storage box 91 in the up-down direction UD of the box body 10. As shown in FIG. Since the refrigerator 100 is formed with the first ventilation hole 93 in the first storage box 91, it can ensure that the cold air blown out from the first outlet 71 is sent back to the return of the first return port 73 belonging to the return port of the cold air. Wind Road F1. Since the refrigerator 100 is installed in the first freezer compartment 14, the cold air return path F1 can be ensured, so that the cold air can be widely circulated, and the temperature distribution in the first storage box 91 can be suppressed to be small.

Moreover, the 2nd ventilation hole 94 which is a through hole is formed in the 2nd storage box 92. As shown in FIG. The second ventilation hole 94 is formed on the right side of the second storage box 92 in the left-right direction LR of the box body 10 . Moreover, the 2nd ventilation hole 94 is formed in the depth direction FB of the housing|casing 10 on the inner side rather than the center part of the 2nd storage box 92. As shown in FIG. Moreover, the 2nd ventilation hole 94 is formed in the lower side than the center part of the 2nd storage box 92 in the up-down direction UD of the housing|casing 10. As shown in FIG. Since the refrigerator 100 is formed with the second ventilation hole 94 in the second storage box 92, it can ensure that the cold air blown out from the second outlet 72 is sent back to the second return port 74 belonging to the return port of the cold air. Return to wind road F2. Since the refrigerator 100 is installed in the first freezer compartment 14 and the return air path F1 is ensured, cold air can be widely circulated and the temperature distribution in the second storage box 92 can be suppressed to be small.

Refrigerator 100 can also be configured to have a plurality of partition walls 20, storage space 11 has a plurality of storage rooms 13 including a first storage room and a second storage room separated by a plurality of partition walls 20, and door leaf 30 opens and closes a plurality of storage rooms. Room 13. Even if the refrigerator 100 is a refrigerator 100 having a single door 30 with respect to a plurality of storage rooms 13 including the first freezer room 14 and the second freezer room 15, the temperature setting between the storage rooms 13 and the upper protrusion 35 can be used. The simple structure formed by the presence of the storage chamber 13 suppresses the movement of heat.

In addition, the upper protrusion 35 has a sealing ring 42 in the front end 35b in the protruding direction, and the sealing ring 42 has: a fixing part 43 mounted on the front end 35b of the upper protrusion 35; and a thin plate-shaped fin 50, The tie extends downward from the fixing portion 43 . In addition, when the freezer door 31 is closed, the fin 50 is disposed between the upper protrusion 35 and the first partition wall 21 .

In addition, the refrigerator 100 can suppress the transfer of heat between the storage rooms 13 by using the temperature setting between the storage rooms 13 and the existence of the upper protrusion 35 with a simple structure. Therefore, the refrigerator 100 does not need to provide a gasket between the partition wall 21 of the first section and the freezer door 31 , and the temperature control of each storage chamber 13 can be performed using the sealing ring 42 which is lighter and simpler than the gasket.

In the refrigerator 100 , no gasket is provided in front of the first partition wall 21 between the first freezer compartment 14 and the second freezer compartment 15 , and the gap 70 is closed. However, the refrigerator 100 is partially provided with the seal ring 42 on the upper protrusion 35, and seals a part of the gap 70c between the first freezer compartment 14 and the second freezer compartment 15 with the seal ring 42, so that the heat transfer between the storage compartments 13 can be suppressed. , and the temperature of the storage room 13 can be easily controlled. That is, even if the refrigerator 100 closes the gap 70 without a gasket, the temperature can be controlled for each storage room 13 , and the odor migration of food between the storage rooms 13 can be prevented.

The seal ring 42 is formed of resin. As described above, the refrigerator 100 has a situation where the upper protrusion 35 and the first partition wall 21 approach due to the sagging of the door 31 due to the weight of the freezer door 31 . In this case, it is also possible to prevent the upper protrusion 35 from colliding with the first compartment when the freezer door 31 is closed by interposing the sealing ring 42 formed of resin between the upper protrusion 35 and the first compartment wall 21 . The contact of the partition wall 21, alternatively, can mitigate the damage caused by the contact.

In addition, the sealing ring 42 has a plurality of fins 50 . The refrigerator 100 uses a plurality of fins 50 to reduce the flow velocity of the cold air passing through the gap 70 c, making it difficult for the cold air to pass between the upper protrusion 35 and the first partition wall 21 .

In addition, one of the plurality of fins 50 may be in contact with the upper surface of the first partition wall 21 , and the other of the plurality of fins 50 may be in contact with one of the plurality of fins 50 to form an air layer. When an air layer is formed between the plurality of fins 50, the thermal insulation is improved by the air layer, and the temperature control of the storage chambers 13 can be more effectively performed.

In addition, above the first partition wall 21, a heater 80 for warming the stored goods is provided. The refrigerator 100 is equipped with a heater 80 on the partition wall 21 of the first section, so that the temperature of the first freezer compartment 14 can be controlled in detail, and the temperature relationship between the first freezer compartment 14 and the second freezer compartment 15 can be easily maintained.

In addition, the temperature range of the first freezer compartment 14 may be -5°C or lower and -7°C or higher. By setting the temperature range of the first freezer compartment 14 to the above-mentioned temperature range, the first freezer compartment 14 can be set to freeze stored items such as food to such an extent that they can be divided into small portions by using a kitchen knife or human hands. A cooling room in a frozen state.

In addition, the temperature range of the first freezer compartment 14 may be below freezing point -15°C or above. By setting the temperature zone of the first freezer compartment 14 to the above-mentioned temperature range, the first freezer compartment 14 can be set to maintain a supercooled state in which stored items such as food are not frozen even at a temperature below the freezing point. cooling room.

Moreover, the freezer compartment door 31 has the lower protrusion part 36 which protrudes from the surface of the freezer compartment door 31 by the storage space 11 side. When the freezer door 31 is closed, the lower protrusion 36 is disposed below the first section partition wall 21 with a gap 70b from the first section partition wall 21, and is formed along the line of the first section partition wall 21 when viewed from the front. The direction of extension extends to the left and right. Therefore, even if the refrigerator 100 is a refrigerator having a door leaf with respect to the two storage chambers 13 of the first freezing chamber 14 and the second freezing chamber 15, it can be adjusted by using the temperature setting between the storage chambers 13 and the upper protrusion 35. There is a simple structure formed to suppress the transfer of heat between the storage chambers 13 .

Moreover, the freezer compartment door 31 has the lower protrusion part 36 which protrudes from the surface of the freezer compartment door 31 by the storage space 11 side. When the freezer door 31 is closed, the lower protrusion 36 is disposed below the first section partition wall 21 with a gap 70b from the first section partition wall 21, and is formed along the line of the first section partition wall 21 when viewed from the front. The direction of extension extends to the left and right. Refrigerator 100 is on the back side 31a side of freezer door leaf 31, in the mode that communicates first freezer compartment 14 and second freezer compartment 15, by the upper protrusion 35 and lower protrusion 36 of freezer compartment door leaf 31 and the partition wall of the first section 21, a U-shaped gap 70c inclined at 90 degrees when viewed from the side is formed. This gap 70c is a passage for cooling air to flow. Since the refrigerator 100 is provided with the gap 70c of the above-mentioned structure, the refrigerator 100 is in the state where the freezer door 31 is closed, and the dry air in the box is circulated around the partition wall 21 of the first section, and the partition wall 21 of the first section is suppressed. Exposure to outside air that contains a lot of moisture. Therefore, the refrigerator 100 suppresses dew from adhering to the first partition wall 21 or around the seal ring 42 and the lower seal ring 46 as the outside air is cooled.

In addition, the refrigerator 100 needs to allow the air to pass through the U-shaped gap 70c in side view formed by the upper protrusion 35 and the lower protrusion 36 of the freezer door 31 and the first section partition wall 21, so the air flow in the freezer door can be reduced. 31 and the air flow velocity between the gap 70c of the first partition wall 21. That is, the refrigerator 100 suppresses heat transfer between the first freezer compartment 14 and the second freezer compartment 15 connected to each other in the storage compartment 13 located above and below the first partition wall 21, so that the first freezer compartment 14 can And in the second freezing chamber 15, carry out independent temperature control respectively.

Moreover, the refrigerator 100 has the cooler 51 which cools the storage space 11, and the cooler 51 is arrange|positioned below the 1st partition wall 21. As shown in FIG. By arranging the cooler 51 below the first partition wall 21 between the first freezer compartment 14 and the second freezer compartment 15, the cooler 51 and the first freezer compartment whose temperature is higher than that of the second freezer compartment 15 14 to prevent heat conduction from the cooler 51 to the first freezing compartment 14. Furthermore, by disposing the cooler 51 below the first partition wall 21 between the first freezing chamber 14 and the second freezing chamber 15, the cooling chamber 61 and the storage chamber 13 in the second freezing chamber 15 can The thickness of the insulating wall between them is thinner.

The freezer door 31 is a door leaf that opens and closes the first freezer 14 and the second freezer 15 simultaneously. Refrigerator 100 is configured to open and close a plurality of storage rooms 13 with one door 30 , so that the number of doors 30 can be reduced compared to a configuration in which doors 30 are provided for each storage room 13 . In recent years, refrigerators tend to be simple in design. Reducing the number of refrigerator doors will enhance the new style of refrigerators.

In addition, as shown in FIG. 2 and FIG. 4 , when the refrigerator 100 is arranged with the storage boxes 90 on the left and right, the first outlet 71 and the second outlet 72 are provided near the center of the refrigerator 100 in the left-right direction LR, and The first return port 73 and the second return port 74 are provided on the left and right wall sides. The refrigerator 100 can suppress the flow of cool air between the storage boxes 90 by providing a cool air outlet and a cool air outlet at this position. Therefore, the refrigerator 100 does not need to completely divide a partition wall such as two storage boxes 90 . In addition, even if the refrigerator 100 is provided with a partition wall to ensure the sliding properties of the storage box 90, the size of the partition wall can be reduced more than the partition wall for suppressing the flow of cold air. In addition, the partition wall can be made simple. structure. Furthermore, as shown in FIG. 4, if the rail 96 for sliding the storage boxes 90 can be installed on the partition wall 20, the partition wall parts between the storage boxes 90 can be eliminated, and the material cost and manufacturing cost can be suppressed.

(implementation type 2) The refrigerator 100 of Embodiment 2 will be described here. Components having the same functions and functions as those of the refrigerator 100 according to Embodiment 1 are denoted by the same symbols and their descriptions are omitted. Hereinafter, the refrigerator 100 of the second embodiment is different from the refrigerator 100 of the first embodiment, and the structure not described in the refrigerator 100 of the second embodiment is the same as that of the refrigerator 100 of the first embodiment. The refrigerator 100 of Embodiment 2 is a component of the partition wall 20 of a more specific designation.

Among the refrigerators, there is a partition wall 20 installed on the box body 10 before the urethane filled in the box body 10 of the refrigerator is foamed, and the partition wall 20 cannot be removed after being installed in the box body 10 . In addition, among the refrigerators, although there is also a refrigerator in which a part of the partition wall 20 can be detached, the entire partition wall 20 cannot be detached in this type of refrigerator.

In the refrigerator 100 of Embodiment 2, the first partition wall 21 that divides the first freezer compartment 14 belonging to the first storage compartment and the second freezer compartment 15 belonging to the second storage compartment can all be removed. The refrigerator 100 of Embodiment 2 is disposed inside the cabinet 10 in such a manner that the first partition wall 21 can be detached freely.

In the partition wall 20 including the first partition wall 21, a heat insulating material is included according to the temperature setting of each storage room 13 in the place where the partition wall 20 is installed. The heat insulating material system is, for example, a vacuum heat insulating material or urethane. In addition, in the partition wall 20, a heat insulating material may be included regardless of the temperature setting of each storage room 13 in the place where the partition wall 20 is installed.

(The effect of refrigerator 100) In the past, in the refrigerator, there is equipped with a blower fan 52 that blows the cold air generated by the cooler 51 on the back side of the partition wall 20 to each storage room 13, and is formed on the back side of the partition wall 20. Air passages such as the refrigerating room blowing air path 62 , the first freezing room blowing air path 63 , and the second freezing room blowing air path 64 .

Since this kind of refrigerator has the partition wall 20, parts used on the cooler 51 and the blower fan 52, etc. cannot be assembled inside the partition wall 20, or are difficult to assemble. In addition, since this type of refrigerator has the partition wall 20, there will be winds that cannot form the refrigerator compartment blowing air path 62, the first freezing compartment blowing air path 63, and the second freezing compartment blowing air path 64 on the inner side than the partition wall 20. road, or the situation that it is not easy to form a wind road.

Even if the parts to be used for the cooler 51 and the blower fan 52 are assembled on the inner side of the partition wall 20, the parts need to be divided in order to be arranged on the inner side of the partition wall 20, and the cost of the product may increase. situation. In addition, even if the air passages such as the refrigerating room blowing air passage 62, the first freezing chamber blowing air passage 63, and the second freezing chamber blowing air passage 64 can be formed on the back side of the partition wall 20, there are still some air passages to be formed on the partition wall. 20 In the case where it is necessary to divide the parts used to form the air passage on the inner side, the cost of the product is increased.

The refrigerator 100 of Embodiment 2 is disposed inside the cabinet 10 in such a manner that the first partition wall 21 can be detached freely. In the refrigerator 100 of Embodiment 2, the first partition wall 21 that divides the first freezer compartment 14 and the second freezer compartment 15 is made into a detachable part, so that the parts that constitute the cooler 51 or the blower fan 52 are installed The partition wall 21 of the first section can be disassembled when inside the box body 10 . Therefore, since the first partition wall 21 does not exist when the user installs the parts constituting the cooler 51 and the blower fan 52 inside the cabinet 10, the installation of the refrigerator 100 is easy and workability can be improved. In addition, since the user does not have the first section partition wall 21 when forming air passages such as the refrigerating room blowing air passage 62, the first freezing chamber blowing air passage 63, and the second freezing chamber blowing air passage 64, the formation of the air passages It becomes easy and the workability can be improved.

In addition, the partition wall 20 may not include a heat insulating material. When the partition wall 20 does not have a heat insulating material, the number of parts constituting the refrigerator 100 can be reduced, and material costs and manufacturing costs can be reduced. In addition, even if the partition wall 20 does not contain a heat insulating material, the partition wall 20 can prevent the odor of the food in the storage room 13 from migrating, and can store food in small portions.

When the first freezer compartment 14 is a freezer compartment for freezing through a supercooled compartment, or when the first freezer compartment 14 is a cold storage compartment for maintaining the supercooled state of the storage, since the first freezer compartment 14 does not require detailed Therefore, it is preferable to include a heat insulating material in the first section partition wall 21 . The refrigerator 100 is equipped with the 1st partition wall 21 which has a heat insulating material, and the heater 80, and can control the temperature of the storage room 13 easily.

(implementation type 3) The refrigerator 100 of Embodiment 3 is now described. Components having the same functions and actions as those of the refrigerators 100 of Embodiment 1 and Embodiment 2 are denoted by the same symbols and their descriptions are omitted. Hereinafter, the refrigerator 100 of the third embodiment is different from the refrigerators 100 of the first embodiment and the second embodiment. It is the same as the refrigerator 100 of Embodiment 2. In the refrigerator 100 of Embodiment 3, the constituents of the first partition wall 21 are specified more specifically.

The first partition wall 21 that divides the first freezer compartment 14 and the second freezer compartment 15 is manufactured and assembled with parts other than metal plates, such as resin parts. No heat dissipation pipe for dew condensation prevention is provided in the first partition wall 21 . Other configurations of the first partition wall 21 are the same as those of the refrigerator 100 of Embodiment 1 or Embodiment 2.

(The effect of refrigerator 100) Conventionally, in refrigerators, when outside air containing a lot of moisture contacts the cooled partition wall 20, dew condensation may occur on the partition wall 20 and its surroundings. Therefore, the refrigerator may provide a heat dissipation pipe on the front side of the partition wall 20 to radiate heat and suppress generation of dew condensation.

Refrigerator 100 is on the back side 31a side of freezer door 31, in the mode of communicating with first freezer 14 and second freezer 15, by the freezer door 31 and the first zone partition wall 21 formed a 90-degree inclination when viewed sideways. Zigzag-shaped gap 70c. This gap 70c is a passage for cooling air to flow. In the refrigerator 100, since the gap 70c of the above-mentioned structure is provided, in the refrigerator 100, in the state where the freezer door 31 is closed, the dry air in the box circulates around the partition wall 21 of the first section, and the air of the partition wall of the first section is suppressed. 21 Exposure to outside air that contains a lot of moisture. Therefore, the refrigerator 100 suppresses dew from adhering to the first partition wall 21 or around the seal ring 42 and the lower seal ring 46 as the outside air is cooled.

Therefore, the refrigerator 100 can eliminate the heat dissipation duct provided on the front surface of the partition wall 20 to prevent dew condensation. The first partition wall 21 of the refrigerator 100 is not provided with a heat dissipation pipe for radiating heat in order to suppress generation of condensation, and a metal plate covering the heat dissipation pipe. Therefore, compared with refrigerators that require heat dissipation ducts, the refrigerator 100 can reduce the manufacturing cost and material cost required for disposing the heat dissipation ducts. In addition, the refrigerator 100 does not have a heat dissipation duct for preventing dew condensation, so it can also prevent the heat of the heat dissipation duct from flowing into the box and deteriorate the energy-saving performance, and can improve the energy-saving performance compared with refrigerators that require a heat dissipation duct.

In addition, in a refrigerator having a heat dissipation duct for preventing dew condensation, the front side of the partition wall 20 is formed of a metal plate part in order to exert the effect of the heat dissipation duct. Furthermore, in a refrigerator having a heat dissipation duct for preventing condensation, parts are divided into a main body portion of the partition wall 20 and a front portion of the partition wall 20 in order to arrange the heat dissipation duct. However, since the first partition wall 21 does not have a heat dissipation duct, it can be formed with a resin part. In the refrigerator 100, the first section partition wall 21 can be formed as an integral part of resin, and the number of parts can be reduced compared with refrigerators requiring heat dissipation ducts, and the material cost and manufacturing cost can be suppressed.

The above-mentioned embodiments 1 to 3 can be implemented in combination with each other. In addition, the configuration shown in the above embodiments is merely an example, and it may be combined with other known techniques, and a part of the configuration may be omitted or changed within the scope not departing from the gist.

For example, in the refrigerator 100 of Embodiment 1, the structure in which the first storage box 91 and the second storage box 92 are arranged side by side in the first freezer compartment 14 has been described, but the structure of the refrigerator 100 is not limited to this. . The first storage box 91 and the second storage box 92 may not be provided in the first freezer compartment 14 , and the first freezer compartment 14 may be a space separated from the second freezer compartment 15 by the first partition wall 21 . In this case, the refrigerator 100 is also provided with an upper protrusion 35 or a lower protrusion 36, or an upper protrusion 35 and a lower protrusion, in front of the first partition wall 21 between the first freezer compartment 14 and the second freezer compartment 15. Part of the gap 70c is closed by the protruding part 36, and heat transfer between the storage chambers 13 can be suppressed. In addition, in the refrigerator 100, the sealing ring 42 is provided on the upper protrusion part 35, and a part of the gap 70c is closed with the sealing ring 42, and heat transfer between the storage compartments 13 can be suppressed.

10: Box 11: storage space 12: Opening 12a: Peripheral part 13: storage room 14: The first freezer 15: The second freezer 16: Refrigerator 20: next door 21: Next door to District 1 21a: front edge 22: Next door to the second district 25: Partition board 30: door leaf 31: Freezer door leaf 31a: back 32: Refrigerator door leaf 33: Freezer gasket 34: Cold room gasket 35: upper protrusion 35a: Basal part 35b: front end 35b1: above 35b2: front face 35b3: Below 36: lower protrusion 36a: Basal part 36b: front end 40: Control device 42: sealing ring 43: fixed part 44: first fin 45: second fin 46: Lower sealing ring 47: Lower fixed part 48: Lower first fin 49: Lower second fin 50: fins 51: Cooler 52: Blowing fan 53: The first damper adjustment 54: The second damper adjustment 61: Cooling chamber 62: Blowing out the air path of the refrigerator 63: The first freezer blows out the air path 64: The second freezer blows out the air path 65: Refrigerator return air path 66: The return air path of the first freezer 67: The return air path of the second freezer 70, 70a, 70b, 70c: Clearance 71: The first outlet 72: Second outlet 73: The first return port 74: The second return port 80: heater 80a: end 90: storage box 91: The first storage box 92:Second storage box 93: The first vent hole 94:Second ventilation hole 95: The third storage box 96: track 100: Refrigerator FB: Depth direction UD: up and down direction LR: left and right direction F1, F2: return air path

Fig. 1 is a front view of a refrigerator of embodiment 1. Fig. 2 is a front view showing the interior of the refrigerator of Embodiment 1. Fig. 3 is a schematic longitudinal sectional view of the refrigerator of embodiment 1 along line A-A of Fig. 1 . Fig. 4 is a cross-sectional view of the refrigerator of embodiment 1 along line B-B in Fig. 2, and is a schematic diagram with a freezer door leaf added. Fig. 5 is a conceptual diagram of the door leaf of the refrigerator of Embodiment 1 viewed from the inside of the refrigerator. Fig. 6 is an enlarged view of part C in Fig. 3 when the refrigerator of Embodiment 1 does not have a heater (heater). Fig. 7 is a horizontal cross-sectional view of the position above the upper protrusion of the first freezer compartment of the refrigerator of Embodiment 1. Fig. 8 is a cross-sectional view of the refrigerator of Embodiment 1 along the line D-D in Fig. 7 . Fig. 9 is an enlarged view of part C in Fig. 3 when the refrigerator of Embodiment 1 is equipped with a heater. Fig. 10 is an enlarged view of part C in Fig. 3 when the refrigerator of Embodiment 1 is equipped with a lower sealing ring.

13: storage room

14: The first freezer

15: The second freezer

21: Next door to District 1

21a: front edge

31: Freezer door leaf

31a: back

35: upper protrusion

35a: Basal part

35b: front end

36: lower protrusion

36a: Basal part

36b: front end

42: sealing ring

44: first fin

45: second fin

70, 70a, 70b, 70c: Clearance

FB: Depth direction

UD: up and down direction

Claims (15)

A refrigerator comprising: The box body is formed with a storage space for storing storage items inside, and an opening for taking the storage items into and out of the storage space is formed on the front; The partition wall is the space that divides the aforesaid storage space into upper and lower spaces; and The door leaf is arranged in front of the aforementioned storage space, and opens and closes the aforementioned opening; In the aforementioned storage space, a plurality of storage rooms are formed by the aforementioned box body and the aforementioned partition wall; The aforementioned plurality of storage rooms have: a first storage room located above the partition wall; and a second storage room located below the partition wall; The aforementioned first storage room is set at a higher temperature than the aforementioned second storage room; The door leaf is a door leaf for simultaneously opening and closing the first storage room and the second storage room, and has an upper protrusion protruding from the surface of the door leaf on the side of the storage space; When the aforementioned door leaf is closed, a gap is formed in the interior of the aforementioned box between the aforementioned partition wall and the aforementioned door leaf and between the aforementioned partition wall and the aforementioned upper protrusion, and the aforementioned first storage room and the aforementioned second storage room are connected by the aforementioned gap; The upper protrusion is disposed above the partition wall with a gap therebetween when the door is closed, and is formed to extend left and right along the direction in which the partition wall extends when viewed from the front, and A part of the front end side of the protrusion direction of the said upper protrusion part overlaps with the said partition wall in planar view. The refrigerator according to claim 1, wherein the partition wall is detachably arranged inside the box. The refrigerator according to claim 1 or 2, wherein the aforementioned door leaf is rotatably supported on the cabinet, In the first storage room, one or more storage boxes for accommodating the storage objects are arranged. The refrigerator as described in claim 3, wherein a ventilation hole belonging to a through hole is formed in the storage box; The ventilation hole is formed on either side of the storage box in the left-right direction of the box body, and is formed on the inner side than the central part of the storage room in the depth direction of the box body. The said box is formed in the lower side than the center part of the said storage box in the up-down direction. The refrigerator as described in claim 1 or 2 has a plurality of the aforementioned partition walls, The storage space has the plurality of storage rooms, the plurality of storage rooms include the first storage room and the second storage room separated by the plurality of partition walls, The aforementioned door leaf system opens and closes the aforementioned plurality of storage rooms. In the refrigerator as described in claim 1 or 2, the partition wall of the aforementioned section is not provided with: heat dissipation ducts for radiating heat in order to suppress the generation of condensation; and metal plates for covering the aforementioned heat dissipation ducts. The refrigerator as described in claim 1 or 2, wherein the upper protrusion has a sealing ring at the front end of the protrusion direction; The aforementioned sealing ring system has: The fixing part is mounted on the aforementioned front end of the aforementioned upper protrusion; and a thin plate-shaped fin extending downward from the aforementioned fixing portion; When the aforementioned door leaf is closed, the aforementioned fin is disposed between the aforementioned upper protrusion and the aforementioned partition wall. The refrigerator according to claim 7, wherein the sealing ring is formed of resin. The refrigerator according to claim 7, wherein the sealing ring has a plurality of fins. The refrigerator according to claim 9, wherein one of the plurality of fins is in contact with the upper surface of the partition wall, The other one of the plurality of fins is in contact with one of the plurality of fins to form an air layer. The refrigerator according to claim 1 or 2, wherein a heater for heating the storage is provided above the partition wall. The refrigerator according to Claim 1 or 2, wherein the temperature range of the first storage room is -5°C or lower and -7°C or higher. The refrigerator according to claim 1 or 2, wherein the temperature zone of the first storage room is below freezing point and above -15°C. The refrigerator according to claim 1 or 2, wherein the door leaf further has a lower protrusion protruding from the surface of the door leaf on the storage space side; When the aforementioned door leaf is closed, a gap is formed inside the aforementioned box between the aforementioned partition wall and the aforementioned door leaf, between the aforementioned partition wall and the aforementioned upper protrusion, and between the aforementioned partition wall and the aforementioned lower protrusion, The aforementioned first storage room and the aforementioned second storage room are connected through the aforementioned gap; The lower protrusion is disposed below the partition wall with a gap therebetween when the door is closed, and is formed to extend left and right along the direction in which the partition wall extends when viewed from the front. The refrigerator as described in claim 1 or 2 has a cooler for cooling the aforementioned storage space, The cooler is disposed below the partition wall.

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