JP2023080176A - refrigerator - Google Patents

Abstract

To provide a refrigerator that can reduce failures of a vacuum heat insulation material and a heater.SOLUTION: A refrigerator includes: an upper stage switching chamber 60 and a lower stage switching chamber 70 vertically adjacent to each other; and a rear partition part 16B disposed between the upper stage switching chamber 60 and the lower stage switching chamber 70. The rear partition part 16B includes a case for storing a vacuum heat insulation material V9 and a heater. The rear partition part 16B is fixed and the vacuum heat insulation material V9 and the heater are configured not to be able to be removed from the case unless fixation of the rear partition part 16B is released.SELECTED DRAWING: Figure 16

Description

The present invention relates to refrigerators.

2. Description of the Related Art A refrigerator has been proposed in which a partition member for partitioning a storage compartment is configured separately from a heat insulating box body (see, for example, Patent Document 1).

JP 2016-173187 A

However, in the refrigerator as described in Patent Document 1, when cold air leaks through a partition member into another storage compartment (for example, from a storage compartment in a freezing temperature range to a storage compartment in a refrigerating temperature range), the storage compartment changes to the refrigerating temperature. There is a problem that it becomes difficult to maintain the band.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a refrigerator capable of suppressing leakage of cool air even if a partition member configured separately from the refrigerator body is used to solve the conventional problems described above. aim.

The present invention includes a first storage chamber and a second storage chamber that are vertically adjacent to each other, and a partition member disposed between the first storage chamber and the second storage chamber, wherein the partition member is a vacuum storage chamber. A case is provided for housing a heat insulating material and/or a heater, the partition member is fixed, and the vacuum heat insulating material and/or the heater are arranged in the above-described case unless the fixing of the partition member is released. A refrigerator that cannot be removed from its case.

ADVANTAGE OF THE INVENTION According to this invention, even if it uses the partition member comprised separately with respect to the refrigerator main body, the refrigerator which can suppress cold air leakage can be provided.

It is an external appearance perspective view which shows the refrigerator of this embodiment. It is a longitudinal section showing the inside of the refrigerator of this embodiment. It is a front view which shows the inside of a refrigerator main body. It is a figure explaining the flow of cool air. FIG. 4 is a schematic diagram showing a fan casing; FIG. 5 is a cross-sectional view taken along line AA of FIG. 4; It is a schematic diagram explaining the flow of cold air of the whole refrigerator. It is a perspective view which shows the inside of a refrigerator. It is an exploded perspective view of a rear partition part. It is a perspective view showing a lower case. It is a top view which shows the attachment state of a heater cord. It is the perspective view which looked at the rear partition part from the rear side. 13 is a partially enlarged cross-sectional view taken along line BB of FIG. 12; FIG. 13 is a partially enlarged cross-sectional view taken along line CC of FIG. 12; FIG. It is a schematic diagram which shows the attachment structure of the back part of a rear partition part. It is a sectional view showing the attachment state of the front partition and the rear partition. It is a cross-sectional view showing a temporary fixing portion of the rear partition. It is sectional drawing which shows the fastening structure of a rear partition part and an inner box.

Hereinafter, a form (this embodiment) for carrying out the present invention will be described. However, the present embodiment is not limited to the following content, and can be arbitrarily changed within the scope of the present invention. Further, the following description is based on the directions shown in FIG.

FIG. 1 is an external perspective view showing a refrigerator according to this embodiment. In the following description, the six-door refrigerator 1 will be described as an example, but the present invention can also be applied to refrigerators having other numbers of doors.
As shown in FIG. 1, the refrigerator 1 includes a refrigerator compartment 30, an ice making compartment 40 (first storage compartment), a freezer compartment 50 (first storage compartment), an upper switching compartment 60 (second storage compartment, first storage compartment, switchable compartment) and a lower switchable compartment 70 (second storage compartment, switchable compartment). The upper switchable chamber 60 can switch the temperature range from a refrigerating temperature range (eg, 1° C. to 6° C.) to a freezing temperature range (eg, about −20° C. to −18° C.). Similarly, the lower switchable chamber 70 can switch the temperature range from the refrigerating temperature range to the freezing temperature range. The refrigerator compartment 30 is set to a refrigerator temperature range (eg, 6°C). The ice making compartment 40 and the freezing compartment 50 are set to a freezing temperature range (for example, about -20°C).

Refrigerator 1 also has refrigerating chamber doors 2 and 3 for opening and closing refrigerating chamber 30, ice making chamber door 4 for opening and closing ice making chamber 40, and freezer chamber door 5 for opening and closing freezer chamber 50. , an upper switchable chamber door 6 for opening and closing an upper switchable chamber 60 and a lower switchable chamber door 7 for opening and closing a lower switchable chamber 70. - 特許庁

The refrigerating compartment doors 2 and 3 are configured to be double-openable. The icemaker door 4, the freezer compartment door 5, the upper switchable compartment door 6, and the lower switchable compartment door 7 are configured to be able to be drawn forward. The refrigerator compartment doors 2 and 3, the ice making compartment door 4, the freezer compartment door 5, the upper switching compartment door 6, and the lower switching compartment door 7 are heat insulating doors.

FIG. 2 is a longitudinal sectional view showing the inside of the refrigerator of this embodiment.
As shown in FIG. 2, the refrigerator main body 10 is a combination of an inner box 11 and an outer box 12, and a foam insulating material or a vacuum insulating material is sandwiched between them to form a heat insulating box. The foam heat insulating material is made of rigid urethane foam. This rigid urethane foam is formed by foaming a urethane foam undiluted solution (raw material liquid for a foamed heat insulating material) and then curing it. By the way, as a urethane foam undiluted solution, for example, a liquid obtained by premixing a polyether polyol with a foaming agent such as cyclopentane and water, as well as an auxiliary agent such as a catalyst and a foam stabilizer, and an isocyanate solution is mixed. mentioned.

The outer box 12 is composed of a top plate 1a formed by bending a thin steel plate into a gate shape, left and right side plates 1b and 1c (see FIG. 1), a back plate 1d formed of separate members, and separate members. and a bottom plate 1e. A recessed portion is provided in the rear portion of the top plate 1a, and a control board 13 is provided in this recessed portion. The control board 13 controls the refrigerator 1 in an integrated manner.

Vacuum heat insulating materials V1 and V2 are provided on the inner wall surfaces of the top plate 1a and the back plate 1d. A vacuum heat insulating material V3 is provided on the bottom side of the inner box 11 . Vacuum heat insulating materials V7 and V8 (see FIG. 3) are provided on the inner wall surfaces of the left and right side plates 1b and 1c (see FIG. 1).

The refrigerator compartment doors 2 and 3 are provided with a vacuum heat insulating material V4. The upper switching chamber door 6 is provided with a vacuum heat insulating material V5. The lower switching chamber door 7 is provided with a vacuum heat insulating material V6.

The refrigerator main body 10 also includes a heat insulating partition device (heat insulating partition member) 16 that separates the upper switchable chamber 60 and the lower switchable chamber 70 from each other. The refrigerator main body 10 also includes a heat insulating partition device (heat insulating partition member) 17 that partitions the ice making chamber 40 and the freezer chamber 50 from the upper switchable chamber 60 in a heat insulating manner. The refrigerator main body 10 also includes a heat insulating partition wall 18 that partitions the refrigerating chamber 30 and the ice making chamber 40 and the freezing chamber 50 into upper and lower heat insulating partitions. Also, the heat insulating partition devices 16 and 17 are provided with vacuum heat insulating materials (heat insulating materials) V9 and V10, respectively.

The materials of the vacuum heat insulating materials V1 to V10 are not particularly limited, but to give an example, the heat insulating material is formed by vacuum-packing a core material such as glass wool having a porous structure with a laminate film and depressurizing and sealing the inside. . Since gas thermal conductivity is almost zero, it has excellent heat insulation performance.

Refrigerator 1 has coolers on the rear sides of upper switchable chamber 60 and lower switchable chamber 70 in order to cool each chamber of ice making chamber 40, freezer chamber 50, upper switchable chamber 60, and lower switchable chamber 70 to a predetermined temperature. 80A (EVP: evaporator) is provided. The cooler 80A is provided on the projection of the heat insulating partition device 16 when the refrigerator 1 is viewed from the front.

Further, the cooler 80A constitutes a refrigerating cycle with the compressor 81, a condenser (not shown), and a capillary tube (not shown). Above the cooler 80A, a fan is provided to circulate the cold air cooled by the cooler 80A to the ice making chamber 40, the freezer chamber 50, the upper switchable chamber 60, and the lower switchable chamber 70 to maintain a predetermined temperature. A fan 90 is provided.

In addition, the cooler 80A is arranged in a cooler storage space 100 provided between the back side of the ice making chamber 40, the freezer chamber 50, the upper switchable chamber 60 and the lower switchable chamber 70 and the inner box 11. This cooler storage space 100 extends from directly above the compressor 81 provided in the machine room Q to the height position of the blower fan 90 .

A defrosting heater 82 is provided in the cooler storage space 100 below the cooler 80A. Drain water generated during defrosting by the defrosting heater 82 once drops into a gutter (not shown) and is accumulated in an evaporating dish (not shown) provided above the compressor 81 via a drain hole (not shown). It's like

The air (cold air) cooled by cooler 80A is directly supplied to ice making compartment 40 and freezer compartment 50 without passing through a damper member. Cold air is supplied to the upper switching chamber 60 via a direct cooling damper member 120 (see FIG. 4) and a damper portion 141 (see FIG. 4) of an indirect cooling damper member 140, which will be described later. Cold air is supplied to the lower switching chamber 70 via a damper member 130 for direct cooling (see FIG. 4) and a damper portion 142 (see FIG. 4) of a damper member 140 for indirect cooling, which will be described later. The direct cooling is a method of directly supplying cool air to the stored food to cool it. On the other hand, indirect cooling is a system in which cold air is supplied so as not to directly hit the stored food in order to prevent the food from drying out.

In addition, the refrigerator 1 is provided with a cooler 80B (see FIG. 7) at the lower back side of the refrigerating chamber 30 in order to cool the refrigerating chamber 30 to a predetermined temperature. This cooler 80B constitutes a refrigeration cycle with a compressor 81, a condenser (not shown), and a capillary tube (not shown). A blower fan 91 (see FIG. 7) is provided above the cooler 80B to circulate the cool air cooled by the cooler 80B to the refrigerating compartment 30 and maintain it at a predetermined temperature.

Also, in the upper switching chamber 60, for example, an upper storage container 61 (see FIG. 7) and a lower storage container 62 (see FIG. 7) are vertically arranged. Further, in the lower switching chamber 70, for example, an upper storage container 71 (see FIG. 7) and a lower storage container 72 (see FIG. 7) are vertically arranged. Note that the number of storage containers 61, 62, 71, and 72 is not limited to the number in this embodiment, and can be changed as appropriate.

FIG. 3 is a front view showing the interior of the refrigerator body. FIG. 3 schematically shows a state in which the doors 2 to 7 (see FIG. 1) and storage containers are removed from the refrigerator 1. As shown in FIG.
As shown in FIG. 3 , the refrigerator main body 10 includes a rear heat-insulating partition member 65 that forms the inner rear surfaces of the upper switchable chamber 60 and the lower switchable chamber 70 . The lower end of the rear heat-insulating partition member 65 is located above the projection inward of the machine chamber Q (see FIG. 2).

Case members 112 and 113 are provided at positions corresponding to the upper switching chamber 60 , and case members 114 and 115 are provided at positions corresponding to the lower switching chamber 70 in the rear heat insulating partition member 65 .

The case member 112 is formed with a plurality of outlets 63a, 63a, 63b, 63b through which cold air is discharged when the upper switching chamber 60 is set to the freezing temperature range. The discharge ports 63a, 63a are arranged in the upper central portion of the upper switching chamber 60 so as to be spaced apart from each other to the left and right. The discharge ports 63b, 63b are arranged below the discharge ports 63a, 63a with a space left and right.

The discharge port 63a is formed at a position where cool air can be directly supplied into the upper storage container 61 (see FIG. 7). Also, the discharge port 63b is formed at a position where cool air can be directly supplied into the lower storage container 62 (see FIG. 7).

The case member 113 is formed with a discharge port 63c through which cold air is discharged when the upper switching chamber 60 is set to the refrigerating temperature range. The ejection port 63c is positioned to the side of the ejection ports 63a and 63b (left side in FIG. 3). The discharge port 63c is configured to discharge cold air toward the inner box 11 on the left side as indicated by the dashed arrow. This allows cold air to pass through the outside of the upper storage container 61 (see FIG. 7) and the outside of the lower storage container 62 (see FIG. 7) (to cool the food indirectly).

The case member 114 is formed with a plurality of discharge ports 73a, 73a, 73b, 73b through which cold air is discharged when the lower switching chamber 70 is set to the freezing temperature range. The discharge ports 73a, 73a are arranged in the upper part of the lower switching chamber 70 so as to be separated from each other in the left and right direction. The discharge ports 73b, 73b are arranged below the discharge ports 73a, 73a with a space left and right.

The discharge port 73a is formed at a position where cool air can be directly supplied into the upper storage container 71 (see FIG. 7). Also, the discharge port 73b is formed at a position where cool air can be directly supplied into the lower storage container 72 (see FIG. 7).

The case member 115 is formed with a discharge port 73c through which cold air is discharged when the lower switching chamber 70 is set to the refrigerating temperature range. The ejection port 73c is positioned to the side of the ejection port 73a (left side in FIG. 3). The discharge port 73c is configured to discharge cold air toward the inner box 11 on the left side as indicated by the dashed arrow. This allows cold air to pass through the outside of the upper storage container 71 (see FIG. 7) and the outside of the lower storage container 72 (see FIG. 7) (to cool the food indirectly).

Further, the rear heat insulating partition member 65 is formed with a return port 73d for returning the cold air discharged from the discharge ports 73a, 73b, 73c to the cooler 80A (see FIG. 2). The return port 73d is formed on the side opposite to the ejection port 73c (right side in FIG. 3) across the ejection port 73a.

The ice making chamber 40 and the freezing chamber 50 are formed with outlets 40a and 50a through which cool air is directly supplied into the ice making container (not shown) and the freezing container (not shown), respectively. A return port 41a is formed on the back surface of the freezer compartment 50 to return the cool air discharged from the discharge ports 40a, 50a.

FIG. 4 is a diagram for explaining the flow of cool air. In addition, FIG. 4 schematically shows a state seen from the back with the inner box 11 removed.
As shown in FIG. 4, a blower fan 90 is provided above the cooler 80A. The blower fan 90 is composed of a centrifugal fan such as a turbo fan or a sirocco fan.

A fan casing 111 that houses the blower fan 90 is provided above the cooler housing space 100 . A circular opening 111 s is formed in the fan casing 111 at a position facing the blower fan 90 . Cool air is sucked by the blower fan 90 through the openings 111s and discharged into the fan casing 111 from the circumferential direction.

Damper members 120 , 130 and 140 are attached to the fan casing 111 . The damper member 120 supplies cool air to the upper switching chamber 60 (see FIG. 3) and is provided above the blower fan 90 . The damper member 130 supplies cold air to the lower switching chamber 70 (see FIG. 3), and is provided below the blower fan 90 and on the left side of the cooler 80A (right side in FIG. 4). The damper member 140 includes damper portions 141 and 142 and is provided on the left side of the blower fan 90 (right side in FIG. 4).

Also, the damper member 120 includes a driving portion 123 that opens and closes the flapper. The damper member 130 has a driving portion 133 that opens and closes the flapper. The damper member 140 includes a driving portion 133 that opens and closes the flapper of the damper portion 141 and opens and closes the flapper of the damper portion 142 .

Returning to FIG. 3 , the case member 112 is arranged to cover the front of the damper member 120 (see FIG. 4 ) and is formed to protrude forward from the rear heat insulating partition member 65 . The case member 113 is arranged to cover the front side of the damper portion 141 (see FIG. 4), and is formed to protrude forward from the rear heat insulating partition member 65 .

The case member 114 is provided so as to cover the front of the damper member 130 (see FIG. 4) and protrudes forward from the rear heat insulating partition member 65 . The case member 115 communicates with the flow path 116 (see FIG. 4) extending from the damper portion 142 and protrudes forward from the rear heat insulating partition member 65 .

As shown in FIG. 4, the cooler housing space 100 is formed with a return flow path 41b that allows the cool air coming out of the return port 41a to join the cool air coming out of the return port 73d. The return flow path 41b is configured to flow in the vertical direction on the right side of the rear heat insulating partition member 65 (left side in FIG. 4).

The cool air discharged from the discharge ports 63a and 63b (see FIG. 3) flows downward through the cooler 80A through the return port 63d, rises in the cooler 80A, and is then sucked into the blower fan 90 again. Similarly, the cold air discharged from the discharge port 63c (see FIG. 3) is sucked again by the blower fan 90 after passing through the cooler 80A from the return port 63d.

The cold air discharged from the discharge ports 73a and 73b (see FIG. 3) returns to the lower part of the cooler 80A through the return port 73d, rises inside the cooler 80A, and is then sucked into the blower fan 90 again. Similarly, the cool air discharged from the discharge port 73c (see FIG. 3) also returns to the return port 73d, passes through the cooler 80A, and is sucked into the blower fan 90 again.

After cooling the ice making chamber 40 and the freezing chamber 50, the cold air flows from the return port 41a through the return channel 41b and then through the same return channel as the return channel from the return port 73d to the cooler 80A. return.

FIG. 5 is a schematic diagram showing a fan casing.
As shown in FIG. 5 , the fan casing 111 includes a flow path 111 a that guides cool air toward the damper member 120 and a flow path 111 b that guides cool air toward the damper member 130 . The fan casing 111 also includes a flow path 111c that guides cool air toward the damper portion 141 of the damper member 140 and a flow path 111d that guides cool air to the damper portion 142 of the damper member 140 .

A damper member 120 is fitted to the end of the flow path 111a via a sealing material (not shown). A damper member 130 is fitted to the end of the flow path 111b via a sealing material (not shown). A damper portion 141 is fitted to the end portion of the flow path 111c via a sealing material (not shown). A damper portion 142 is fitted to the end portion of the flow path 111d via a sealing material (not shown).

6 is a cross-sectional view taken along the line AA of FIG. 4. FIG. 6, illustration of the outer box 12, the heat insulating material between the inner box 11 and the outer box 12, the doors 4, 6, 7, and the storage containers 61, 62, 71, 72 is omitted.
As shown in FIG. 6, refrigerator main body 10 includes heat insulating partition device 17 that insulates ice making chamber 40 and freezer chamber 50 (see FIG. 3) and upper switchable chamber 60 . The refrigerator main body 10 also includes a heat insulating partition device 16 that insulates the upper switchable chamber 60 and the lower switchable chamber 70 from each other. Refrigerator main body 10 also includes rear heat insulating partition member 65 that insulates upper switching chamber 60, blower fan 90, and cooler 80A.

The blower fan 90 is fixed to the rear heat insulating partition member 65 via a bracket 92 . The means for attaching the blower fan 90 is not limited to the means for fixing it to the rear heat insulating partition member 65, and it may be fixed by providing a bracket on the cool air intake side of the fan casing 111. FIG.

Both the heat insulating partition devices 16 and 17 are configured including vacuum heat insulating materials V9 and V10. The rear heat-insulating partition member 65 includes styrene foam (so-called styrene foam) 65t formed by molding.

In addition, as described above, the refrigerator main body 10 is provided with the vacuum heat insulating materials V7 and V8 (see FIG. 3) on the left and right side surfaces of the upper switching chamber 60. As shown in FIG. The upper switching chamber door 6 for opening and closing the upper switching chamber 60 is also provided with the vacuum heat insulating material V5 (see FIG. 2) as described above. In this manner, the upper switching chamber 60 is surrounded by the vacuum heat insulating materials V5, V7, V8, V9, and V10 on the front, left, right, upper and lower sides. As a result, when the ice making chamber 40 and the freezing chamber 50 are set to the freezing temperature range and the cooler 80A is arranged on the rear side, the conditions such as when the upper switching chamber 60 is set to the refrigerating temperature range are severe. Even in this case, it is possible to set the upper switchable chamber 60 to the refrigerating temperature range.

Refrigerator main body 10 also has an opening 63e that communicates with return port 63d to cooler 80A on the far side of heat insulating partition device 16 forming the bottom surface of upper switching chamber 60 . The opening 63e is elongated in the left-right direction.

Refrigerator main body 10 also has a rail member 11a formed on the left side surface of upper switching chamber 60 for supporting upper storage container 61 (see FIG. 7) so as to be slidable in the front-rear direction. The upper switching chamber door 6 (see FIG. 2) is provided with a slide member (not shown) for holding the lower storage container 62 (see FIG. 7). is slidably supported by the A rail member having a similar configuration is also provided on the right side of the upper switching chamber 60 .

Refrigerator main body 10 also has a rail member 11c formed on the left side of lower switching chamber 70 to support upper storage container 71 (see FIG. 7) so as to be slidable in the front-rear direction. The lower switching chamber door 7 (see FIG. 2) is provided with a slide member (not shown) for holding the lower storage container 72 (see FIG. 2). is slidably supported by the A rail member having a similar configuration is also provided on the right side of the lower switching chamber 70 .

FIG. 7 is a schematic diagram illustrating the flow of cool air through the refrigerator.
As shown in FIG. 7, in the refrigerating chamber 30 of the refrigerator 1, cold air generated by a cooler 80B provided exclusively for the refrigerating chamber 30 is sucked into a blower fan 91, and a plurality of cooling fans provided on the rear surface of the refrigerating chamber 30 is discharged from the discharge port (not shown). After cooling the food, the cold air returns to cooler 80B from a return port (not shown) provided at the bottom of refrigerator compartment 30 .

In the ice making compartment 40 and the freezing compartment 50 of the refrigerator 1, the cold air generated by the cooler 80A is blown by the blower fan 90 to the outlet 40a (see FIG. 3) provided in the ice making compartment 40 and the outlet provided in the freezing compartment 50. It is discharged from 50a (see FIG. 3). After cooling the food, the air is sucked into the return port 41a provided on the back side of the freezer compartment 50, passes through the return flow path 41b, and returns to the cooler 80A. In this manner, the cold air generated by the cooler 80A is constantly sent to the ice making compartment 40 and the freezer compartment 50 .

When the upper switching chamber 60 is set to the freezing temperature range, the damper member 120 is opened. In this case, cold air generated by cooler 80A passes through damper member 120 . Cold air is directly supplied to the food in the upper storage container 61 from the outlet 63a provided in the upper switching chamber 60, and is directly supplied to the food in the lower storage container 62 from the outlet 63b.

Further, when the upper switching chamber 60 is set to the refrigerating temperature range, the damper portion 141 of the damper member 140 is opened. In this case, cool air generated by cooler 80A passes through damper section 141 . Cold air flows outside the upper storage container 61 and the lower storage container 62 from the discharge port 63c provided in the upper switching chamber 60, thereby indirectly cooling the food. As a result, drying of the food in the upper storage container 61 and the lower storage container 62 can be suppressed.

When the lower switching chamber 70 is set to the freezing temperature range, cold air generated by the cooler 80A passes through the damper member 130 . The food in the upper storage container 71 is directly supplied from the discharge port 73a provided in the lower switching chamber 70, and the food in the lower storage container 72 is directly supplied from the discharge port 73b.

Further, when the lower switching chamber 70 is set to the refrigerating temperature range, the damper portion 142 of the damper member 140 is opened. In this case, cool air generated by cooler 80A passes through damper portion 142 and flow path 116 (see FIG. 4). Cold air flows outside the upper storage container 71 and the lower storage container 72 from the discharge port 73c provided in the lower switching chamber 70, thereby indirectly cooling the food. As a result, drying of the food in the upper storage container 71 and the lower storage container 72 can be suppressed.

Thus, in the refrigerator 1 of the present embodiment, the upper switchable compartment 60 can be set in the refrigerating temperature range and the lower switchable compartment 70 can be set in the freezing temperature range. In the refrigerator 1, the upper switchable compartment 60 can be set to the freezing temperature range, and the lower switchable compartment 70 can be set to the refrigerating temperature range. In the refrigerator 1, both the upper switchable chamber 60 and the lower switchable chamber 70 can be set to the freezing temperature range. In the refrigerator 1, both the upper switchable chamber 60 and the lower switchable chamber 70 can be set to the refrigerating temperature range.

FIG. 8 is a perspective view showing the interior of the refrigerator. 8 shows a state in which the doors 2 to 7 (see FIG. 1) and the containers 61, 62, 71 and 72 (see FIG. 7) of the refrigerator 1 are removed.
As shown in FIG. 8 , in the refrigerator 1 , an upper switchable compartment 60 and a lower switchable compartment 70 are vertically partitioned inside the refrigerator body 10 by a heat insulating partition device 16 . In the refrigerator 1 , the inside of the refrigerator main body 10 is divided vertically by the heat insulating partition device 17 into the ice making chamber 40 , the upper switchable chamber 50 , and the upper switchable chamber 60 . In the refrigerator 1 , the interior of the refrigerator body 10 is partitioned vertically by a heat insulating partition wall 18 into a refrigerating chamber 30 , an ice making chamber 40 and an upper switching chamber 50 .

The heat-insulating partition device 16 has a front partition portion 16A arranged across the left and right inner boxes 11, and a rear partition portion 16B (partition member) arranged on the entire back side of the front partition portion 16A. are doing. The heat-insulating partition device 17 has a front partition portion 17A that is arranged across the left and right inner boxes 11, and a rear partition portion 17B that is arranged entirely behind the front partition portion 17A. Between the heat insulating partition device 17 and the heat insulating partition wall 18 , a vertical partition portion 19 is provided that extends vertically and partitions the ice making chamber 40 and the freezing chamber 50 .

FIG. 9 is an exploded perspective view of the rear partition. 9 shows the rear partition portion 16B of the heat insulating partition device 16 that partitions the upper switchable chamber 60 and the lower switchable chamber 70. As shown in FIG.
As shown in FIG. 9, the rear partition 16B includes a synthetic resin case 160 consisting of a lower case (inner case) 161 and an upper case (outer case) 162, a vacuum heat insulating material V9, heaters He1 and He2, and a sealing material 164 . Since the rear partition 17B of the heat insulating partition device 17 has the same basic configuration as the rear partition 16B, the rear partition 16B will be described below as an example.

The lower case 161 includes a square bottom portion 161s and side portions 161a rising from the outer peripheral edge portions of the four sides of the bottom portion 161s. Further, the lower case 161 has a plurality of locking claws 161b formed on the outer surface of the side surface portion 161a (only one side surface portion 161a is shown in FIG. 9). Further, the lower case 161 is formed with screw insertion portions 161d, 161d through which screws (fastening portions) 168, 168 are inserted when the upper case 162 is screwed.

The upper case 162 includes a square top surface portion 162s and side surface portions 162a (extending toward the lower case 161) hanging down from the outer peripheral edges of the four sides of the top surface portion 162s. Further, the upper case 162 is formed with a locking hole 162b that engages with the locking claw 161b on the outer surface of the side portion 162a.

Further, reinforcing ribs 162t are formed in a grid pattern on the upper surface of the upper case 162. As shown in FIG. The rib 162t is linearly formed and protrudes from the outer surface of the top surface portion 162s. The rib 162t is formed linearly from one end to the other end of the opposing side surface portion 162a, and is formed linearly from one end to the other end of the other opposing side surface portion 162a. By forming the ribs 162t in a grid pattern (in two orthogonal directions) in this manner, reliability can be improved (surface strength can be improved) compared to the case where the ribs are formed in one direction.

A plurality of locking portions 162e that are locked to the inner box 11 are formed at both left and right ends of the upper case 162. As shown in FIG. The locking portion 162e is formed such that a protrusion 162f faces outward. Further, at both left and right ends of the upper case 162, screw fixing portions 162g are formed between the engaging portions 162e. The screw fixing portion 162g has a plate portion 162h extending upward from the upper surface of the upper case 162 and a screw insertion hole 162i formed at the tip of the plate portion 162h.

Further, the upper case 162 is formed with a flange portion 162m protruding toward the front partition portion 16A (see FIG. 8). The flange portion 162m is placed on the upper surface of the front partition portion 16A. Further, screw fixing portions 162n for screw fixing the upper case 162 to the front partition portion 16A are formed at a plurality of locations (two locations in this embodiment) on the collar portion 162m. A fixing portion 162o, into which a screw 168 is screwed, is formed in the collar portion 162m at a position corresponding to the screw insertion portion 161d.

The vacuum heat insulating material V9 is constructed in the same manner as the vacuum heat insulating materials V1 to V8 described above, and is formed in a rectangular shape so as to be accommodated in the lower case 161. As shown in FIG.

A sealing material 164 is attached to the side surface of the vacuum heat insulating material V9. This sealing material 164 is soft and is formed on the entire outer peripheral surface of the vacuum heat insulating material V9. By providing such a sealing material 164, the gap between the lower case 161 and the outer peripheral surface of the vacuum heat insulating material V9 can be filled, and the vacuum heat insulating material V9 moves within the lower case 161 and damages the vacuum heat insulating material V9. can prevent it from happening.

In the rear partition portion 16B of such a heat insulating partition device 16, the upper case 162 is covered after the vacuum heat insulating material V9 is accommodated in the lower case 161. - 特許庁In this case, the side surface portion 162a of the upper case 162 is positioned outside the side surface portion 161a of the lower case 161 . Therefore, when the upper case 162 is put on the lower case 161, the side portion 162a does not come into contact with the vacuum heat insulating material V9, thereby preventing the vacuum heat insulating material V9 from being damaged.

The heater He1 heats the upper switching chamber 60 to control the internal temperature, and is arranged between the upper case 162 and the vacuum heat insulating material V9. The heater He1 includes a heat transfer wire h1 (heat transfer portion), an aluminum sheet s1 covering the heat transfer wire h1, and a lead wire h2 (cord portion) connected to the heat transfer wire h1.

The heater He2 heats the lower switching chamber 70 to control the internal temperature, and is arranged between the lower case 161 and the vacuum heat insulating material V9. The heater He2 includes a heat transfer wire h1 (heat transfer portion), an aluminum sheet s1 covering the heat transfer wire h1, and a lead wire h2 (cord portion) connected to the heat transfer wire h1.

FIG. 10 is a perspective view showing the lower case.
As shown in FIG. 10, the lower case 161 has a bottom surface portion 161s formed with a substantially shaped recess portion 161q. A heater He2 (see FIG. 9) is arranged in the recess 161q. Further, the lower case 161 has a convex side surface portion 161r formed by forming a part of the rear side surface portion 161a in a convex shape rearward. As a result, the space R1 in which the convex side portion 161r is formed is located behind the region R2 in which the convex side portion 161r is not formed. A bottom surface 161u formed in the space R1 of the convex side surface portion 161r is set to be flush with the bottom surface of the recessed portion 161q.

Winding portions 169, 169 around which the lead wire h2 (see FIG. 9) is wound are formed on the bottom surface 161u. One (left) winding portion 169 has a base portion 169a extending upward from the bottom surface 161u and a horizontal portion 169b extending leftward from the base portion 169a, and is formed in an L shape. The other (right) winding portion 169 is formed such that the horizontal portion 169b faces in the opposite direction to the horizontal portion 169b of the one (left) winding portion 169 .

A rising wall 170 that rises upward is formed between the winding portions 169 on the bottom surface 161u. The rising wall 170 is positioned forward of the convex side portion 161r. A substantially semicircular notch 170 a is formed in the upper portion of the rising wall 170 . Further, the upper end of the notch portion 170a is formed at a height that matches the upper end of the convex side portion 161r.

Hooks 170b, 170b are formed on the left and right upper ends of the rising wall 170. As shown in FIG. The hooks 170b are formed in an upside-down J-shape, and are formed so that the tips thereof face inward (opposing sides) so that the distance between the upper portions of the cutouts 170a becomes narrower. Lead wires h2 (see FIG. 9) of heaters He1 and He2 (see FIG. 9) are hooked on the hooks 170b and 170b.

FIG. 11 is a plan view showing the attached state of the heater cord. In FIG. 11, the vacuum heat insulating material V9 is hatched.
As shown in FIG. 11, the lead wire h2 of the heater He2 (see FIG. 9) is pulled out from the rear of the lower case 161. As shown in FIG. Then, after the lead wire h2 is pulled out from the vicinity of one (left) winding portion 169A (169), it is wound around the one (left) winding portion 169A from the outside by approximately 1/4 turn. Then, it extends to the other (right) winding portion 169B (169) and is wound approximately half a turn from the outside. Then, it returns to one winding portion 169A and winds it approximately half a turn, further winds it approximately half a turn around the other winding portion 169B, and inserts it into the notch portion 170a of the rising wall 170. As shown in FIG.

By the way, the lead wire h2 of the heater He2 must be connected outside the rear partition 16B. Therefore, there is a risk that the worker will pull the lead wire h2 in order to secure the extension dimension (drawing dimension) of the lead wire h2. The heater He2 also has a crimped portion (not shown) for connecting the lead wire h2 and the heat transfer wire h1. If the winding portion 169 is not provided and the lead wire h2 is pulled by the operator to secure the protruding dimension, stress is applied to the lead wire h2, which may damage the crimped portion.

Therefore, in the present embodiment, the lead wire h2 is pre-wound around the winding portions 169 and 169 and pulled out to the outside. Even so, damage to the caulked portion can be prevented.

Further, the vacuum heat insulating material V9 is arranged up to the vicinity (very little) of the side surface portion 161a of the lower case 161 in order to improve heat insulation. Therefore, in the present embodiment, the lead wire h2 of the heater He2 is pulled out from the vicinity of the winding portion 169 so that the vacuum heat insulating material V9 does not bite the lead wire h2 and the lead wire h2 is compressed by the vacuum heat insulating material V9. The lead wire h2 can be pulled out without being pulled out.

FIG. 12 is a perspective view of the rear partition viewed from the rear side. Note that FIG. 12 shows a state viewed from the rear side with the rear partition portion 16B shown in FIG. 9 assembled.
As shown in FIG. 12, the upper case 162 is formed with a convex side portion 162r so as to cover the outer surface side of the convex side portion 161r.

In addition, locking holes 162b are formed at a plurality of locations in the side surface portion 162a on the back side. Engagement claws 161b formed on the side surface portion 161a on the back side are inserted into and engaged with these engagement holes 162b. A plurality of locking holes 162b are also formed in the convex side surface portion 162r, and locking claws 161b formed in the convex side surface portion 161r are inserted and locked.

The convex side surface portion 162r is formed with a bulging portion 172 that bulges rearward (in a direction away from the rising wall 170) at a position facing the rising wall 170 (see FIG. 10). The bulging portion 172 has a cylindrical body 172a formed in a semi-cylindrical shape, an upper covering portion 172b covering the upper portion of the cylindrical body 172a, and a projecting portion 172c projecting rearward from the lower end of the cylindrical body 172a. are doing.

13 is a partially enlarged cross-sectional view taken along line BB of FIG. 12. FIG.
As shown in FIG. 13 , the bulging portion 172 protrudes rearward from the rising wall 170 . The projecting portion 172c is located below the lower end of the notch portion 170a and above the bottom surface portion 161s. A downward passage R3 is formed by the bulging portion 172 . Further, the lead wire h2 can be pulled out rearward below the projecting portion 172c. In this way, the rising wall 170 rising upward from the bottom portion 161s is formed, and the rising wall 170 forms a downward passage R3 with the bulging portion 172, so that the lead wire h2 is directed downward. can be pulled out. As a result, even if the liquid W such as water adheres to the upper surface of the rear partition 16B and flows backward, it is possible to prevent water from entering the rear partition 16B. Therefore, it is possible to prevent the water from adhering to the electric parts in the rear partition 16B and corroding the metal parts.

14 is a partially enlarged cross-sectional view taken along line CC of FIG. 12. FIG. Note that the heaters He1 and He2 are omitted from FIG.
As shown in FIG. 14, lower case 161 and upper case 162 are fixed using screws 168 . That is, the screw 168 is inserted through the screw insertion portion 161 d of the lower case 161 from below and then screwed into the fixing portion 162 o of the upper case 162 .

FIG. 15 is a schematic diagram showing the mounting structure of the rear end of the rear partition. In addition, in FIG. 15, in order to make description easy to understand, it is illustrated typically.
As shown in FIG. 15, the rear partition portion 16B is attached to the rear heat insulating partition member 65 by fitting into the fitting recess 65a. The fitting recess 65a includes a contact surface portion 65a1 facing the rear end surface of the rear partition portion 16B, a horizontal surface portion 65a2 extending horizontally forward from the lower end of the contact surface portion 65a1, and It has a tapered portion 65a3 that slopes upward in the forward direction (away from the rear partition portion 16B from the back side toward the front side).

A sealing member 66 is provided at the bottom edge of the rear partition 16B to seal the gap between the horizontal surface portion 65a2 of the fitting recess 65a and the rear partition 16B. The sealing material 66 prevents cold air from leaking, and is made of, for example, a flexible polyurethane-based material.

When attaching the rear partition 16B to the rear heat insulating partition member 65, as shown by the two-dot chain line, the rear partition 16B is arranged parallel to the tapered portion 65a3 (tilted downward toward the back side). ), and insert the rear partition 16B into the fitting recess 65a. Then, the rear partition portion 16B is rotated in the direction of the arrow to bring the rear partition portion 16B into a horizontal state, thereby bringing the sealing material 66 into close contact with the horizontal surface portion 65a2.

By the way, the sealing surfaces can also be brought into close contact in the depth direction. However, since the inner box 11 is made of foamed urethane, when the rear heat-insulating partition member 65 is attached to the inner box 1, the dimension in the depth direction may vary. Therefore, when sealing in the vertical direction, if the partition (rear partition) is inserted in the horizontal direction, there is a possibility that the sealing material will be turned over or damaged due to the fitting. Therefore, in the present embodiment, by providing the tapered portion 65a3 in the fitting recess 65a, the sealing member 66 can be inserted into the fitting recess 65a without coming into contact with the fitting recess 65a. Therefore, it is possible to prevent the sealing material 66 from coming into contact with the horizontal surface 65a2 and to prevent the sealing material 66 from being turned over, thereby improving the sealing reliability.

Further, the rear partition portion 17B of the heat insulating partition device 17 is fitted into the fitting concave portion 65b of the rear heat insulating partition member 65 and attached. The fitting recess 65b is composed of a contact surface portion 65b1 facing the rear end surface of the rear partition portion 17B, a horizontal surface portion 65b2 extending horizontally forward from the upper end of the contact surface portion 65b1, and a lower end of the contact surface portion 65b1. It has a tapered portion 65b3 that slopes upward in the front direction (away from the rear partition portion 17B from the back side to the front side).

In addition, sealing materials (not shown) are opposed to both left and right ends in the width direction of the rear end surfaces of the rear partitions 16B and 17B and to both left and right ends in the width direction of the contact surface portions 65a1 and 65b1 facing the rear end surfaces. By providing in such a manner, it is possible to ensure a better sealing performance.

A seal member 67 is provided on the edge of the upper surface of the rear partition 17B to seal the gap between the horizontal surface portion 65b2 of the fitting recess 65b and the rear partition 17B.

A screw fixing portion 68 for fixing the rear partition portion 17B to the rear surface of the rear heat insulating partition member 65 is provided on the lower surface of the rear partition portion 17B. The screw fixing portion 68 is formed of a plate-like member, and is formed with a screw hole (not shown) through which the screw 69 is inserted.

When the rear partition 17B is attached to the rear heat insulating partition member 65, the rear partition 17B should be parallel to the tapered portion 65b3 (tilted upward toward the back side) as indicated by the two-dot chain line. ), and insert the rear partition 17B into the fitting recess 65b. Then, the rear partition portion 17B is rotated in the direction of the arrow to bring the rear partition portion 17B into a horizontal state, thereby bringing the sealing material 67 into close contact with the horizontal surface portion 65b2. At this time, it is possible to prevent the sealing material 67 from coming into contact with the horizontal surface 65b2, thereby preventing the sealing material 67 from being turned over, thereby improving the sealing reliability.

Thus, in the present embodiment, the same effect as that of the rear partition 16B can be obtained for the rear partition 17B. Furthermore, in this embodiment, by providing the sealing material 67 on the upper surface of the rear partition 17B, even if a liquid such as soup is spilled on the rear partition 17B, it will not flow into the back side of the sealing material 67. Liquid can be prevented from entering the rear partition portion 17B.

Also, the rear portion of the rear partition portion 17B is attached to the inner box 11 via a rear heat insulating partition member 65. As shown in FIG. Since the inner box 11 is made of foamed urethane and used as a heat insulating material, there is a possibility that the back heat insulating partition member 65 and the rear partition portion 17B may be misaligned. Therefore, even if the sealing members 66 and 67 are provided in the rear partition portion 17B, cold air may leak due to misalignment. Therefore, as described with reference to FIG. 15, the rear partition 17B is provided with the screw fixing portion 68, and the rear partition 17B is screwed to the back heat insulating partition member 65 so that the rear partition 17B and the back heat insulating partition member 65 are connected. The positional relationship with the fitting recess 65b can be defined at a position where the collapse of the sealing material 67 can be maintained. In addition, by providing the screw fixing portions 68 at three locations in the width direction (left-right direction), ie, the center and the left and right portions, the sealing material 67 can be stably brought into close contact with the seal member 67 in the width direction.

FIG. 16 is a cross-sectional view showing how the front partition and the rear partition are attached.
As shown in FIG. 16, the rear partition 17B is configured by combining a lower case 161 and an upper case 162. As shown in FIG. A front end of the lower case 161 is formed with a flange portion 161m extending toward the front partition portion 17A. The flange portion 161m is formed to extend to a position overlapping the lower surface of the front partition portion 17A. A step portion 17b is formed in the front partition portion 17A at a position where the flange portion 161m overlaps in the vertical direction. The front partition 17A is formed with an upper flange 17c with which the upper edge of the rear partition 17B abuts. The rear partition 17B is fastened to the front partition 17A from below via screws 180. As shown in FIG.

Further, a step portion 16b is formed in the front partition portion 16A at a position where the flange portion 162m of the rear partition portion 16B overlaps. The front partition 16A is formed with a lower flange 16c with which the lower edge of the rear partition 16B abuts. Contrary to the rear partition 17B, the rear partition 16B is fastened to the front partition 16A via screws 181 from above.

By fastening the rear partition portion 16B to the front partition portion 16A in this way, the screw 168 when fastening the lower case 161 and the upper case 162 of the rear partition portion 16B cannot be visually recognized from the outside (the screw 168 is position where it cannot be removed). In other words, the lower case 161 and the upper case 162 cannot be disassembled until the screws 181 are removed. Therefore, to check the inside of the rear partition 16B, the screw 181 must be removed. In this way, by preventing the inside of the rear partition 16B from being exposed inside the chamber, it can be disassembled after being taken out of the chamber, thereby reducing damage to the vacuum heat insulating material V9 and the heaters He1 and He2. can.

Although not shown, in the rear partition portion 17B, the lower case 161 and the upper case 162 are fastened together with screws (not shown) in the same manner as the rear partition portion 16B, and the rear partition portion 17B is divided into the front partition and the rear partition portion 17B. When the screw is fastened to the portion 17A, the fastening portion of the screw is arranged at a position that cannot be visually recognized from the outside (the screw cannot be removed from the outside).

FIG. 17 is a cross-sectional view showing a temporary fixing portion of the rear partition.
As shown in FIG. 17, the lower case 161 is formed with temporary fixing portions 190 for temporarily fixing the rear partition portion 17B to the inner case 11 on the left and right sides. The temporary fixing portion 190 has an elastically deformable elastic portion 190a and a protruding portion 190b formed at the tip of the elastic portion 190a so as to protrude toward the inner casing 11 .

Ribs 11f are formed on the side surfaces 11s of the inner box 11 with which the upper surfaces of the left and right ends of the rear partition portion 17B abut. A side surface 11s of the inner box 11 is formed with a fitting recess 11g into which the protrusion 190b is fitted. In this way, it is not necessary to manually support the rear partition 17B until it is fastened to the front partition 17A, which facilitates the work of fastening the rear partition 17B to the front partition 17A, reducing the burden on the operator. can be reduced.

FIG. 18 is a cross-sectional view showing the fastening structure between the rear partition and the inner box.
As shown in FIG. 18, the lower surfaces of the left and right ends of the rear partition 16B are supported by ribs 11e formed on the side surfaces 11s of the inner box 11. As shown in FIG.

Plate-shaped screw fixing portions 193 are formed at both the left and right ends of the upper case 162 of the rear partition portion 16B. The screw fixing portion 193 is fastened to the side surface 11s of the inner box 11 via a screw 194 (fastening portion).

Plate-shaped screw fixing portions 191 are formed at both the left and right ends of the lower case 161 of the rear partition portion 17B. The screw fixing portion 191 is fastened to the side surface 11s of the inner box 11 via a screw 192 (fastening portion).

As described above, the refrigerator 1 of the present embodiment includes the ice making chamber 40, the freezing chamber 50 (first storage chamber), and the upper switching chamber 60 (second storage chamber), which are vertically adjacent to each other, and the ice making chamber 40 and the freezing chamber. 50 and a rear partition portion 17</b>B arranged between the upper switching chamber 60 . The rear partition part 17B has a vacuum heat insulating material V10 and a case 160 that houses the vacuum heat insulating material V10, and the rear surface 65s of the upper switching chamber 60 is fastened to the case 160 (see FIG. 15). According to this, the positional relationship between the case 160 and the rear surface 65s can be defined at substantially the same position. As a result, when the case 160 and the rear surface 65s are fixed via the sealing material 67, the sealing material 67 can be kept crushed, and the reliability of the sealing material 67 can be improved.

In addition, the present embodiment includes an upper switchable chamber 60 (first storage portion) and a lower switchable chamber 70 that are vertically adjacent to each other, a rear partition portion 16B disposed between the upper switchable chamber 60 and the lower switchable chamber 70, Prepare. The rear partition portion 16B has a vacuum heat insulating material V9 and a case 160 that houses the vacuum heat insulating material V9, and the rear surface 65s of the lower switching chamber 70 is fastened to the case 160 (see FIG. 15). According to this, when the case 160 and the rear surface 65s are fixed via the sealing material 66, the crushing of the sealing material 66 can be maintained, and the reliability of the sealing material 66 can be improved.

Moreover, this embodiment has the fitting recessed part 65b with which the back part of the rear partition part 17B fits in the back surface 65s. The fitting recess 65b has a horizontal surface portion 65b2 that extends horizontally along the upper surface of the rear partition portion 17B, and a tapered portion 65b3 that slopes away from the rear partition portion 17B from the back side to the front side. According to this, when the sealing material 67 is provided on the upper surface of the case 160, it is possible to prevent the sealing material 67 from being turned over or damaged when the rear partition portion 17B is inserted into the fitting recess 65b. The reliability of the sealing material 67 can be improved.

Further, in this embodiment, the back surface 65s has a fitting concave portion 65a into which the back portion of the rear partition portion 16B is fitted. The fitting recess 65a has a horizontal surface portion 65a2 that extends horizontally along the lower surface of the rear partition portion 16B, and a tapered portion 65a3 that inclines in the direction away from the rear partition portion 16B from the back side toward the front side (see FIG. 15). Accordingly, when the sealing material 66 is provided on the lower surface of the case 160, it is possible to prevent the sealing material 66 from being turned over or damaged when the rear partition portion 16B is inserted into the fitting recess 65a. The reliability of the sealing material 66 can be improved.

Further, this embodiment has a sealing member 67 for sealing the gap between the rear partition portion 17B and the fitting recess 65b, and the sealing member 67 is provided on the upper surface (see FIG. 15). According to this, when a liquid such as soup is spilled on the rear partition 17B, it is possible to prevent the liquid from flowing into the rear partition 17B from the sealing member 67 and entering the rear partition 17B.

Further, in this embodiment, the case 160 is fastened to the side surfaces 11s located on the left and right of the upper switchable chamber 60 (lower switchable chamber 70) (see FIG. 18). According to this, the sealing performance between the case 160 and the side surface 11s can be ensured.

In addition, the present embodiment has a front partition 17A extending in the left-right direction on the near side of the rear partition 17B, and the rear partition 17B is fastened to the front partition 17A from below. (See FIG. 16). This is effective when the ice making compartment 40 and the freezing compartment 50 are arranged laterally above the upper switching compartment 60 .

Further, in this embodiment, the rear partition portion 17B has a temporary fixing portion 190 that is temporarily fixed to the front partition portion 17A. According to this, when the rear partition 17B is lifted from below and fixed to the front partition 17A, there is no need to keep supporting the rear partition 17B, so the fastening work can be facilitated.

Moreover, in this embodiment, the case 160 is fastened by screws 168 to the upper case 162 and the lower case 161 . When the case 160 is fastened to the front partitions 16A and 17A, the screw 168 is formed at a position that cannot be seen from the outside (see FIGS. 14 and 16). According to this, by preventing the case 160 from being disassembled inside the refrigerator, it is possible to reduce damage to the vacuum heat insulating materials V9 and V10 and the heaters He1 and He2 inside the case 160. FIG.

Further, in this embodiment, the upper switchable chamber 60 and the lower switchable chamber 70 are configured as switchable chambers that can be switched from the refrigerating temperature range to the freezing temperature range. The rear partition portion 16B includes heaters He1 and He2 that are placed over the vacuum heat insulating material V9. The heaters He1 and He2 have a heat transfer wire h1 and a lead wire h2 connected to the heat transfer wire h1. Winding portions 169, 169 around which the lead wire h2 is wound are provided inside the rear partition portion 16B. According to this, by winding the lead wire h2 around the winding portion 169 and then pulling it out of the rear partition portion 16B, excessive stress acting on the crimped portion connecting the heat transfer wire h1 and the lead wire h2 can be prevented. Therefore, it is possible to prevent the heaters He1 and He2 from being damaged.

Further, in this embodiment, the rear partition portion 17B has a space R1 that protrudes outward. The winding portion 169 is located in the space R1 (see FIG. 10). According to this, the vacuum heat insulating material V9 can be arranged close to the side surface portion 161a of the case 160, and the heat insulating performance can be improved.

Further, in this embodiment, the upper switchable chamber 60 and the lower switchable chamber 70 are configured as switchable chambers for switching from the refrigerating temperature range to the freezing temperature range. The heat insulating partition device 16 that partitions the upper switchable chamber 60 and the lower switchable chamber 70 has a cooler 80A that cools the upper switchable chamber 60 and the lower switchable chamber 70 on the projection of the heat insulating partition device 16 when viewed from the front. ing. According to this, since the cooler 80A is the coldest place, by arranging the cooler 80A on the projection of the heat insulation partition device 16, the upper switchable chamber 60 or the lower switchable chamber 70 is biased. You can prevent it from cooling down.

In addition, this embodiment is composed of expanded styrene foam (expanded heat insulating material) 65t that does not contain a vacuum heat insulating material. According to this, the degree of freedom of molding is higher than that of the vacuum heat insulating material, and it becomes easy to arrange the air passages with good efficiency, so that the degree of freedom of the air passages can be improved.

As described above, the present embodiment has been described with reference to the drawings, but the present embodiment is not limited to the contents described above, and includes various modifications. In the above-described embodiment, the sealing materials 66 and 67 are urethane-based, but are not limited to this, and silicone-based materials such as highly expanded silicone foam may be used. good too. By using such a highly foamed silicone foam, it is possible to improve low-temperature characteristics and increase airtightness.

1 refrigerator 10 refrigerator body 11 inner box 11s side (side wall)
12 outer box 15 heat insulating partition wall 16, 17 heat insulating partition device 16A, 17A front partition 16B, 17B rear partition (partition member)
16b step portion 16c lower collar portion 30 refrigerator compartment 40 ice making compartment (first storage compartment)
50 freezer (first storage room)
60 upper switching room (second storage room, first storage room)
65 Rear heat insulating partition member 65a, 65b Fitting recess 65a2, 65b2 Horizontal surface portion 65a3, 65b3 Tapered portion (inclined surface portion)
66, 67 sealing material 70 lower switching chamber (second storage chamber)
80A cooler 90 blower fan 160 case 161 lower case (case)
161d screw insertion portion 162 upper case (case)
162m flange portion 162o fixing portion 168 screw (fastening portion, second screw)
169 winding portion 181 screw (first screw)
He1, He2 Heater h1 Heat transfer wire (heat transfer part)
h2 lead wire (cord part)
R1 space V9, V10 vacuum insulation material (insulation material)

Claims (6)

a first storage room and a second storage room that are vertically adjacent to each other;
a partition member arranged between the first storage chamber and the second storage chamber;
The partition member has a case for housing a vacuum heat insulating material and/or a heater,
The partition member is fixed,
A refrigerator in which the vacuum heat insulating material and/or the heater cannot be removed from the case until the fixing of the partition member is released. In the refrigerator according to claim 1,
Having a front partition portion extending in the left-right direction on the front side of the partition member,
The partition member has a flange portion extending over the entire width of the partition member toward the front partition portion at the front end of the case,
The front partition has a stepped portion formed at a position where the flange overlaps, and a lower flange with which the lower edge of the partition member abuts,
In the refrigerator, the partition member is fastened from above to the front partition portion via a first screw at a position where the flange portion and the stepped portion overlap each other. In the refrigerator according to claim 2,
The case is configured by fastening an upper case and a lower case with a second screw,
The refrigerator, wherein the second screw is formed at a position invisible from the outside when the case is fastened to the front partition. In the refrigerator according to claim 3,
The lower case is formed with a screw insertion portion through which the second screw is inserted,
The upper case is formed with a fixing portion to which the second screw is screwed,
The refrigerator in which the screw insertion portion is positioned above the lower surface of the lower case. In the refrigerator according to claim 4,
A refrigerator in which the fixing portion is formed on the lower surface of the brim portion. In the refrigerator according to claim 4,
The refrigerator in which the fastening position of the second screw is positioned near the lateral outer side of the fastening position of the first screw.

Images