CN113883797A

CN113883797A - Refrigerator with a door

Info

Publication number: CN113883797A
Application number: CN202110238864.7A
Authority: CN
Inventors: 津布久正康; 渡边浩俊
Original assignee: Hitachi Global Life Solutions Inc
Current assignee: Hitachi Global Life Solutions Inc
Priority date: 2020-07-02
Filing date: 2021-03-04
Publication date: 2022-01-04

Abstract

The invention provides a refrigerator capable of improving operability of wiring. The refrigerator of the present invention includes: a partition member (500) extending in the front-rear direction and partitioning a storage chamber having an ice-making chamber and a freezing chamber (4); a first wiring harness (w1) extending from the rear of the storage room; and a second wiring harness (w2) extending from above the storage compartment, wherein a wire connecting part (75) connecting the first wiring harness (w1) and the second wiring harness (w2) is arranged at the front side of the partition member (500). In the wire connecting portion (75), a first wiring harness (w1) and a second wiring harness (w2) are connected via a plurality of connectors, and the wire connecting portion has a bag-shaped portion that accommodates a part of the connectors.

Description

Refrigerator with a door

Technical Field

The present invention relates to a refrigerator.

Background

Patent document 1 describes a configuration having refrigerating room 14 and freezing rooms 18A and 18B arranged vertically, and wiring and connectors housed in the rear side of partition wall 16 between freezing rooms 18A and 18B arranged horizontally.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2016-109378

Disclosure of Invention

Problems to be solved by the invention

However, as described in patent document 1, when the connection portion of the wiring is provided on the deep side in the storage, the operator needs to put his or her body into the storage or to put his or her hand out to perform the operation during the connection, which causes a problem of impairing the work efficiency.

Means for solving the problems

The present invention is characterized by comprising: a partition member extending in the front-rear direction and partitioning the storage chamber; a first wiring unit which is composed of a wiring or a wiring bundle extending from one direction of the storage chamber; and a second wiring unit including a wiring or a wiring harness extending in the other direction of the storage compartment, wherein a connection unit connecting the first wiring unit and the second wiring unit is provided on the front side of the partition member.

Drawings

Fig. 1 is a front view showing a refrigerator according to the present embodiment.

FIG. 2 is a sectional view II-II of FIG. 1.

Fig. 3 is a front view showing a flow of cold air inside the rear surface of the refrigerator according to the present embodiment.

Fig. 4 is a front view showing a flow of cold air in the interior of the refrigerator according to the present embodiment.

Fig. 5 is an enlarged view of a main portion of the V-V section shown in fig. 4.

Fig. 6 is a schematic view of an air passage structure of cooling air.

Fig. 7 is a configuration diagram showing a refrigeration cycle of the refrigerator according to the present embodiment.

Fig. 8 is an exploded perspective view showing a heat-insulating partition wall provided on the rear surface side of the switching chamber.

Fig. 9 is a perspective view showing a partition member disposed in the magazine.

Fig. 10 is a longitudinal sectional view showing the inside of the partition member.

Fig. 11 is an external perspective view of the partition member.

Fig. 12 is a side view of the partition member.

Fig. 13 is an exploded perspective view of the partition member as viewed from the near side (near side) and the cover member side.

Fig. 14 is an exploded perspective view of the partition member as viewed from the depth side (distal side) and the cover member side.

Fig. 15 is a sectional view XV-XV of fig. 12.

Fig. 16 is an exploded perspective view of the partition member as viewed from the depth side and the cartridge main body side.

Fig. 17 is a configuration diagram of the first and second wiring bundles of the cartridge main body.

Fig. 18 is a longitudinal sectional view of the partition member.

Fig. 19 is an enlarged view of a portion a of fig. 18.

Fig. 20 is a sectional view XX-XX of fig. 12.

Fig. 21 is a bottom view of the partition member.

Fig. 22 is a perspective view of the heat insulating partition wall as viewed obliquely from the front.

Fig. 23 is a perspective view of the heat insulating partition wall as viewed obliquely from the rear.

Fig. 24 is a perspective view showing the inside of the lower case of the heat insulating partition wall.

Fig. 25 is a perspective view of the heat-insulating partition wall as viewed from the bottom side.

Fig. 26 is a plan view showing the arrangement of the second wiring harness w2 in the heat insulating partition wall.

Fig. 27 is a schematic view showing a variation of the filled region of the foamed heat insulating material in the heat insulating partition wall.

Fig. 28A is a schematic diagram of a case where the second wiring harness is located at the position of the present embodiment.

Fig. 28B is a schematic diagram in the case where the first wiring harness is located at the position of the comparative example.

Fig. 29 is a sectional view XXII-XXII of fig. 22.

Detailed Description

Hereinafter, an embodiment (present embodiment) for carrying out the present invention will be described. However, the present embodiment is not limited to the following, and can be implemented by being arbitrarily changed within a range not to impair the gist of the present invention. The following description will be made with reference to the directions shown in fig. 1 and 2.

Fig. 1 is a front view showing a refrigerator according to the present embodiment. The following description will be given by taking a six-door refrigerator 1 as an example, but the present invention is not limited to six doors.

As shown in fig. 1, the refrigerator 1 includes a heat-insulated box 10 including a refrigerating chamber 2, an ice-making chamber 3, a freezing chamber 4, a first switching chamber 5 (upper switching chamber, storage chamber) and a second switching chamber 6 (lower switching chamber, storage chamber). The first switching chamber 5 can switch the temperature range from a cold storage temperature range (for example, 1 ℃ to 6 ℃) to a freezing temperature range (for example, about-20 ℃ to-18 ℃). The second switching chamber 6 can switch the temperature range from the refrigerating temperature range to the freezing temperature range in the same manner. The refrigerating compartment 2 is set at a refrigerating temperature zone (e.g., 6 ℃), and the ice-making compartment 3 and the freezing compartment 4 are set at a freezing temperature zone (e.g., about-20 ℃).

Refrigerator 1 includes, on the front surface of heat-insulating box 10, refrigerating

chamber doors

2a and 2b for opening and closing refrigerating chamber 2, an ice-making chamber door 3a for opening and closing ice-making chamber 3, a freezing chamber door 4a for opening and closing freezing chamber 4, a first switching chamber door 5a for opening and closing first switching chamber 5, and a second switching chamber door 6a for opening and closing second switching chamber 6. The refrigerating

chamber doors

2a and 2b are configured to be openable in two directions. The ice making chamber door 3a, the freezing chamber door 4a, the first switching chamber door 5a, and the second switching chamber door 6a are configured to be withdrawable in a near side direction. The refrigerating

chamber doors

2a, 2b, the ice making chamber door 3a, the freezing chamber door 4a, the first switching chamber door 5a, and the second switching chamber door 6a are heat-insulating doors. Further, an operation unit 26 for performing an operation of setting the temperature in the refrigerator is provided on the outer surface of the refrigerator compartment door 2 a.

The refrigerating chamber 2 is partitioned from the freezing chamber 4 and the ice making chamber 3 by an insulating partition wall 28. In addition, the freezing compartment 4 and the ice making compartment 3 are partitioned from the first switching compartment 5 by a heat insulating partition wall 29, and the first switching compartment 5 is partitioned from the second switching compartment 6 by a heat insulating partition wall 30.

Door hinges (not shown) for fixing the heat-insulating box 10 to the

doors

2a and 2b are provided on the front side of the heat-insulating box 10 on the outside of the ceiling and on the front edge of the heat-insulating partition wall 28. The upper door hinge is covered by a door hinge cover 16.

In the first switching room 5 and the second switching room 6 of the refrigerator 1 according to the present embodiment, either one of the refrigerating temperature (maintained at about 4 ℃ on average) and the freezing temperature (maintained at-18 ℃ on average) can be selected. Specifically, it is possible to select from an "FF" mode in which both the first switching room 5 and the second switching room 6 are set to the freezing temperature, an "RF" mode in which the first switching room 5 and the second switching room 6 are set to the refrigerating temperature and the freezing temperature, respectively, an "FR" mode in which both the first switching room 5 and the second switching room 6 are set to the freezing temperature and the refrigerating temperature, respectively, and an "RR" mode in which both the first switching room 5 and the second switching room 6 are set to the refrigerating temperature.

FIG. 2 is a sectional view II-II of FIG. 1.

As shown in fig. 2, the refrigerator 1 is configured by a heat insulating box 10 formed by filling a foamed heat insulating material 93 (urethane foam in the present embodiment) between an outer box 10a made of a steel plate and an inner box 10b made of a synthetic resin (ABS resin in the present embodiment), and partitioning the inside from the outside of the refrigerator. In the heat insulating box 10, a plurality of vacuum heat insulating materials having lower thermal conductivity (higher heat insulating performance) than the foamed heat insulating material are provided between the outer box 10a and the inner box 10b in addition to the foamed heat insulating material, whereby the heat insulating performance can be improved while suppressing a decrease in the internal volume. In the refrigerator 1 of the present embodiment, the vacuum heat insulator 25a is attached to the rear surface of the heat insulating box 10, the vacuum heat insulator 25b is attached to the lower surface (bottom surface), the vacuum heat insulator is attached to the left side surface, and the vacuum heat insulator is attached to the right side surface, whereby the heat intrusion from the outside of the refrigerator at a temperature higher than the temperature of the storage compartment is suppressed, and the heat insulating performance of the refrigerator 1 is improved. Similarly, in the refrigerator 1 of the present embodiment, the vacuum heat insulator 25e is attached to the first switching chamber door 5a, and the vacuum heat insulator 25f is attached to the second switching chamber door 6a, whereby the heat insulating performance of the refrigerator 1 is improved.

The

refrigerating compartment doors

2a, 2b have a plurality of

door recesses

33a, 33b, 33c inside the compartment. The interior of the refrigerating chamber 2 is divided into a plurality of storage spaces by

shelves

34a, 34b, 34c, and 34 d. The ice making chamber door 3a, the freezing chamber door 4a, the first switching chamber door 5a, and the second switching chamber door 6a have an ice making chamber container 3b, a freezing chamber container 4, a first switching chamber container 5b, and a second switching chamber container 6b, respectively, which are integrally pulled out.

In the back of the refrigerating compartment 2, there is a first evaporator chamber 8a in which a first evaporator 14a is installed. In addition, a second evaporator chamber 8b (cooler chamber) to which a second evaporator 14b (cooler) is attached is provided on a substantial back portion of the first switching chamber 5 and the second switching chamber 6. The first switching chamber 5 and the second switching chamber 6 are partitioned from the second evaporator chamber 8b and the second fan discharge duct 12 described later by a heat insulating partition wall 27.

The heat-insulating partition wall 27 is separate from the heat-insulating box 10, the heat-insulating partition wall 29, and the heat-insulating partition wall 30, and is fixed in contact with the heat-insulating box 10, the heat-insulating partition wall 29, and the heat-insulating partition wall 30 via a sealing member (for example, flexible urethane foam) not shown, and is detachable. By forming the heat insulating partition wall 27 separately and detachably in this manner, when a failure occurs in a member covered with the heat insulating partition wall 27, such as the second evaporator 14b housed in the second evaporator chamber 8b, the second fan 9b, the first switching chamber first flap 411, the first switching chamber second flap 412 (see fig. 4), the second switching chamber first flap 421 (see fig. 4), and the second switching chamber second flap 422 (see fig. 4), which will be described later, the heat insulating partition wall 27 can be detached and maintenance can be performed easily.

In addition, a vacuum heat insulator is not attached to the inside of the heat insulating

partition walls

27 and 28, and polystyrene foam (expanded styrene) as a foam heat insulator is attached as a main heat insulating member. On the other hand, polystyrene foam as a foaming heat insulator is attached to the inside of the heat insulating

partition walls

29 and 30, and the

vacuum heat insulators

25g and 25h are attached to the inside of the heat insulating partition walls, respectively, thereby improving heat insulating performance. Since the

vacuum heat insulators

25g and 25h have lower thermal conductivity (higher heat insulating performance) than the foam heat insulator, the main heat insulating member of the heat insulating

partition walls

29 and 30 is a vacuum heat insulator. As the foamed heat insulating material used in the heat insulating

partition walls

27, 28, 29, and 30, polyurethane foam or polyethylene foam may be used.

Refrigerating room temperature sensors 41 (see fig. 4), freezing room temperature sensors 42 (see fig. 4), first switching

room temperature sensors

43a and 43b (see fig. 4), and second switching

room temperature sensors

44a and 44b (see fig. 4) are provided on the back sides in the refrigerator of refrigerating room 2, freezing room 4, first switching room 5, and second switching room 6, respectively. A first evaporator temperature sensor 40a is provided at an upper portion of the first evaporator 14 a. A second evaporator temperature sensor 40b is provided at an upper portion of the second evaporator 14 b. The temperatures of the refrigerating chamber 2, the freezing chamber 4, the first switching chamber 5, the second switching chamber 6, the first evaporator chamber 8a, the first evaporator 14a, the second evaporator chamber 8b, and the second evaporator 14b are detected with these sensors. Further, an outside air temperature sensor 37 and an outside air humidity sensor 38 are provided inside the door hinge cover 16 on the ceiling of the refrigerator 1, and the temperature and humidity of the outside air (outside air) are detected. Further, door sensors (not shown) are provided to detect the open/close states of the

doors

2a, 2b, 3a, 4a, 5a, and 6a, respectively.

The second evaporator 14b is defrosted by energizing a defrosting heater 21, which is a heating means provided at a lower portion of the second evaporator 14b, in a state where the compressor 24 is stopped. The defrosting heater 21 (heater) may be an electric heater of 50W to 200W, for example, and in the present embodiment, a radiation heater of 150W is used. The defrosting water generated when the second evaporator 14b defrosts is discharged from the water flow channel 23b at the lower part of the second evaporator chamber 8b to the second evaporation pan 32 (see fig. 2) provided at the upper part of the compressor 24 through the second water discharge pipe 23c, and is evaporated by heat radiation from the compressor 24, ventilation by a fan (not shown) provided in the machine chamber 39, and the like.

In addition, a fresh food compartment 36 in which the indoor temperature is maintained at 0 ℃ is provided in the lowermost layer of the refrigerating compartment 2. A shelf 34d is provided above the fresh food compartment 36 so as to cover the entire upper portion of the fresh food compartment 36. The shelf 34d is fixed to the inner box 10b, the refrigerating compartment duct, etc. by screws and cannot be removed by a user.

Next, the air path structure in the interior will be described with reference to fig. 3 to 6 and with reference to fig. 2 as appropriate. Fig. 3 is a front view showing the flow of cold air inside the rear surface of the interior of the warehouse. Fig. 3 is a front view of the door, the container, and a heat insulating partition wall 27 described later in fig. 1, with the door and the container removed.

As shown in fig. 3, a first fan 9a is provided above the first evaporator 14 a. The cooling air sent by the first fan 9a is sent to the refrigerating compartment 2 through the refrigerating compartment air trunk 110 and the refrigerating compartment discharge port 110a, and cools the refrigerating compartment 2. Here, the first fan 9a is constituted by, for example, a turbofan (backward fan) which is a centrifugal fan, and can control the rotational speed to a high speed (1600 min)^-1) And low speed (1000 min)^-1). The air supplied to the refrigerating chamber 2 is returned to the first evaporator chamber 8a from the refrigerating chamber return port 110b (refer to fig. 2) and the refrigerating chamber return port 110c, and heat-exchanged with the first evaporator 14a again.

A refrigerating compartment discharge port 110a of the refrigerating compartment 2 is provided at an upper portion of the refrigerating compartment 2. In the present embodiment, the air is discharged to the upper side of the uppermost shelf 34a and the second shelf 34 b. Further, refrigerating compartment return port 110c is provided in the back of the space formed between shelf 34c and shelf 34d of refrigerating compartment 2. The refrigerating chamber return opening 110b (refer to fig. 2) is provided substantially at the rear of a space formed between the shelf 34d of the refrigerating chamber 2 and the heat insulating partition wall 28.

An ice making compartment discharge port 120a is provided on the rear surface of the ice making compartment 3. The ice making compartment discharge port 120a is provided at an upper portion of the ice making compartment 3. A freezing chamber discharge port 120b is provided in the rear surface of the freezing chamber 4. The freezing chamber discharge port 120b is provided at an upper portion of the freezing chamber 4. The ice making compartment discharge port 120a and the freezing compartment discharge port 120b communicate with the freezing compartment air path 130 (freezing compartment duct). The cold air sent from the second fan 9b passes through the freezing compartment air passage 130 and branches as indicated by the broken line arrows, and is discharged from the ice making compartment discharge port 120a and the freezing compartment discharge port 120b as indicated by the solid line arrows.

The refrigerator 1 of the present embodiment includes a first switching room first damper 411, a first switching room second damper 412, a second switching room first damper 421, and a second switching room second damper 422 as blocking means for blocking wind blown into the first switching room 5 and the second switching room 6. The first switching chamber first shutter 411 and the first switching chamber second shutter 412 are installed on a partition in the back of the first switching chamber 5. The second switching chamber first shutter 421 and the second switching chamber second shutter 422 are installed on the substantially back of the second switching chamber 6. Here, the opening area of the first switching chamber first shutter 411 is formed to be larger than the opening area of the first switching chamber second shutter 412. The opening area of the second switching chamber first shutter 421 is formed larger than the opening area of the second switching chamber second shutter 422.

The second evaporator 14b is disposed in the second evaporator chamber 8b in the substantial back of the first switching chamber 5, the second switching chamber 6 and the heat insulating partition wall 30. A second fan 9b is provided above the second evaporator 14 b. The second fan 9b is a turbofan (backward fan) as a centrifugal fan, and the rotational speed can be controlled to a high speed (1800 min)^-1) And low speed (1200 min)^-1). The air having cooled the ice making compartment 3 and the freezing compartment 4 is returned from the freezing compartment return opening 120c to the second evaporator chamber 8b (below the second evaporator 14 b) via the freezing compartment return air passage 120d, and again exchanges heat with the second evaporator 14 b.

A first switching chamber return port 111c is formed in a lower portion of the rear surface of the first switching chamber 5. The cold air having cooled the first switching room 5 is discharged from the first switching room return opening 111c, returned to the second evaporator room 8b (below the second evaporator 14 b) via the freezing room return air passage 120d, and again subjected to heat exchange with the second evaporator 14 b.

Fig. 4 is a front view showing a flow of cold air in the warehouse. Fig. 4 is a front view of the container and the door of fig. 1 removed.

As shown in fig. 4, the heat-insulating partition wall 27 is provided with first switching chamber

first discharge ports

111a and 111a through which the cold air is discharged into the first switching chamber 5. The first switching chamber first discharge port 111a is formed to be elongated in the width direction (left-right direction) and is located on the left side of the width direction center (the side opposite to the first switching chamber return port 111c in the left-right direction). The first switching chamber first discharge port 111a is located above the center in the height direction of the interior.

Further, the heat insulating partition wall 27 is formed with a first switching room second discharge port 111b for discharging cold air into the first switching room 5. The first switching chamber second discharge port 111b is formed in the left side surface of the heat insulating partition wall 27. Thereby, the cold air discharged from first switching room second discharge port 111b is discharged to the inner wall surface (left side surface) of inner case 10 b. Further, the heat-insulating partition wall 27 is formed with a first switching-chamber communication passage 111d that communicates the first switching-chamber second discharge port 111b with the first switching-chamber second shutter 412.

Second switching chamber

first discharge ports

112a and 112a for discharging cold air into the second switching chamber 6 are provided in the heat insulating partition wall 27. The second switching chamber first discharge port 112a is formed to be elongated in the width direction (left-right direction) and is located on the left side of the width direction center (the side opposite to the second switching chamber return port 112c in the left-right direction). The second switching chamber first discharge port 112a is located above the center in the height direction of the interior.

A second switching chamber second discharge port 112b for discharging cold air into the second switching chamber 6 is formed in the heat insulating partition wall 27. The second switching chamber second discharge port 112b is formed in the left side surface of the heat insulating partition wall 27. Thereby, the cold air discharged from second switching room second discharge port 112b is discharged to the inner wall surface (left side surface) of inner case 10 b. Further, a second switching chamber communication passage 112d that communicates the second switching chamber second discharge port 112b with the second switching chamber second baffle 422 is formed in the heat insulating partition wall 27.

Fig. 5 is an enlarged view of a main portion of the V-V section of fig. 4.

As shown in fig. 5, the second switching chamber 6 has a second switching chamber return port 112c at an upper portion of a rear surface thereof. The air flowing in from the second switching chamber return port 112c flows through the second switching chamber return air passage 112e extending downward from the second switching chamber return port 112c, reaches the second evaporator chamber inlet port 112f formed at a lower height position than the second switching chamber return port 112c, and flows into the second evaporator chamber 8b from below.

By providing the air passage (second switching chamber return air passage 112e) extending downward between the second switching chamber return opening 112c and the second evaporator chamber inlet 112f in this manner, the low-temperature air in the second evaporator chamber 8b is less likely to flow backward into the second switching chamber 6 when the second fan 9b is stopped. This makes it possible to provide refrigerator 1 in which the second switching room 6 is less prone to be supercooled, particularly when the second switching room 6 is set at a refrigerating temperature. Further, since there is only a need for an air passage extending downward between the second switching chamber return port 112c and the second evaporator chamber inlet port 112f, the air flowing in from the second switching chamber return port 112c may be configured to flow upward and then flow in the air passage extending downward. Such a backflow suppressing structure is intended to suppress supercooling of the storage compartment, and therefore, may be disposed not only between the switching compartment and the evaporator compartment but also between the refrigerating compartment, the fresh food compartment, or the low freezing compartment (i.e., a compartment having a storage temperature of about-10 ℃ or-7 ℃ as a lower limit) and the evaporator compartment.

Fig. 6 is a schematic view of an air passage structure of cooling air.

As shown in fig. 6, when the freezing compartment damper (freezing compartment damper) 431 is controlled to be in the open state, the air that has been heat-exchanged with the second evaporator 14b and has become low-temperature is sent to the ice making compartment 3 and the freezing compartment 4 via the second fan discharge air duct 12, the freezing compartment air duct 130, the ice making compartment discharge opening 120a, and the freezing compartment discharge opening 120b by driving the second fan 9b, and cools the water in the ice making tray of the ice making compartment 3, the ice in the ice making compartment container 3b, the food stored in the freezing compartment container 4b in the freezing compartment 4, and the like. The air having cooled the ice making chamber 3 and the freezing chamber 4 is returned from the freezing chamber return opening 120c to the second evaporator chamber 8b (see fig. 2) via the freezing chamber return air passage 120d, and is again heat-exchanged with the second evaporator 14 b.

When the first switching chamber first damper 411 is controlled to be in the open state, the air boosted by the second fan 9b is directly sent to the first switching chamber container 5b provided in the first switching chamber 5 through the second fan discharge air passage 12, the first switching chamber air passage 140, the first switching chamber first damper 411, and the first switching chamber

first discharge ports

111a and 111a provided in the discharge port forming member 111 (see fig. 4), thereby directly cooling the food in the first switching chamber container 5 b. The air cooled in the first switching chamber 5 passes through the first switching chamber return opening 111c and the freezing chamber return air passage 120d, returns to the second evaporator chamber 8b, and exchanges heat with the second evaporator 14b again. Here, the direct cooling means a method of directly supplying cold air to the stored food to cool the food.

When the first switching chamber second damper 412 is controlled to be in the open state, the air boosted by the second fan 9b is discharged from the second fan discharge duct 12, the first switching chamber duct 140, the first switching chamber second damper 412, and the first switching chamber second outlet 111b provided in the outlet forming member 111 (see fig. 4) to the side wall of the first switching chamber 5, thereby indirectly cooling the food in the first switching chamber container 5 b. The air cooled in the first switching chamber 5 passes through the first switching chamber return opening 111c and the freezing chamber return air passage 120d, returns to the second evaporator chamber 8b, and exchanges heat with the second evaporator 14b again. Here, the indirect cooling means a cooling method in which cold air is supplied so as not to directly blow to the stored food in order to suppress drying of the food.

When the second switching chamber first flap 421 is controlled to be in the open state, the air boosted by the second fan 9b is directly sent into the second switching chamber container 6b provided in the second switching chamber 6 through the second fan discharge air passage 12, the second switching chamber air passage 150, the second switching chamber first flap 421, and the second switching chamber

first discharge ports

112a and 112a provided in the discharge port forming member 112 (see fig. 4), thereby cooling the food in the second switching chamber container 6 b. The air having cooled the second switching chamber 6 passes through the second switching chamber return opening 112c and the second switching chamber return air passage 112d, returns to the second evaporator chamber 8b, and exchanges heat with the second evaporator 14b again.

When the second switching chamber second damper 422 is controlled to be in the open state, the air boosted by the second fan 9b is discharged from the second fan discharge duct 12, the second switching chamber duct 150, the second switching chamber second damper 422, and the second switching chamber second outlet 112b provided in the outlet forming member 112 (see fig. 4) toward the side wall of the second switching chamber 6, thereby indirectly cooling the food in the second switching chamber container 6 b. The air having cooled the second switching chamber 6 passes through the second switching chamber return opening 112c and the second switching chamber return air passage 112d, returns to the second evaporator chamber 8b, and exchanges heat with the second evaporator 14b again.

The evaporator chamber (the second evaporator chamber 8b in the present embodiment) that houses the low-temperature evaporator, the air passages through which the air that has been brought into a low temperature by heat exchange with the evaporator flows (the second fan discharge air passage 12, the freezer air passage 130, the first switching chamber air passage 140, and the second switching chamber air passage 150 in the present embodiment), the storage chamber that maintains the freezing temperature (the ice making chamber 3, the freezer chamber 4, the first switching chamber 5 when the freezing temperature is set, and the second switching chamber 6 when the freezing temperature is set), and the return air passages from the storage chamber that maintains the freezing temperature (the freezer return air passage 120d in the present embodiment, and the second switching chamber return air passage 112d when the freezing temperature is set) are spaces that reach the freezing temperature, and are hereinafter referred to as freezing temperature spaces. In the present embodiment, the first switching chamber air passage 140 and the second switching chamber air passage 150 are constituted by a damper duct member 300 described later.

As shown in fig. 7, the refrigerator 1 of the present embodiment includes: a compressor 24; an external heat radiator 50a as a heat radiating means for radiating heat from the refrigerant; a wall-surface heat radiation pipe 50b (the inner surface of the outer box 10a disposed in the region between the outer box 10a and the inner box 10 b); dew condensation prevention piping 50c (disposed on the inner surfaces of the

heat insulating partitions

28, 29, and 30) for suppressing dew condensation on the front surfaces of the

heat insulating partitions

28, 29, and 30 (see fig. 2) and in the vicinity of the front edge of the heat insulating box 10 (see fig. 2); a first capillary tube 53a and a second capillary tube 53b as pressure reducing means for reducing the pressure of the refrigerant; and a first evaporator 14a and a second evaporator 14b for absorbing heat in the storage by exchanging heat between the refrigerant and air in the storage. Further, the refrigerator 1 includes: a dryer 51 for removing moisture in the refrigeration cycle; gas-

liquid separators

54a, 54b that suppress inflow of the liquid refrigerant into the compressor 24; a refrigerant control valve 52 that controls a refrigerant flow path; a check valve 56; and a refrigerant confluence portion 55 connecting refrigerant flows. These components are connected by refrigerant pipes to constitute a refrigeration cycle. The refrigerant is isobutane as a flammable refrigerant.

The refrigerant control valve 52 has

outflow ports

52a, 52 b. The refrigerant control valve 52 is a valve that can be switched to the following 4 states: "state 1" in which the outflow port 52a is opened and the outflow port 52b is closed; "state 2" in which the outflow port 52a is closed and the outflow port 52b is opened; "state 3" in which both the outflow port 52a and the outflow port 52b are closed; "state 4" in which both the outlet port 52a and the outlet port 52b are opened.

Next, the flow of the refrigerant in the refrigerator 1 of the present embodiment will be described. The high-temperature and high-pressure refrigerant discharged from the compressor 24 flows through the external radiator 50a, the wall surface heat radiation pipe 50b, the dew condensation prevention pipe 50c, and the dryer 51 in this order, and reaches the refrigerant control valve 52. The outlet 52a of the refrigerant control valve 52 is connected to the first capillary tube 53a via a refrigerant pipe. The outlet 52b of the refrigerant control valve 52 is connected to the second capillary tube 53b via a refrigerant pipe.

When the refrigerating room 2 is cooled by the first evaporator 14a, the refrigerant control valve 52 is controlled to "state 1" in which the refrigerant flows toward the outlet 52a side. The refrigerant flowing out of the outflow port 52a is reduced in pressure by the first capillary tube 53a to have a low temperature and a low pressure, enters the first evaporator 14a to exchange heat with the air in the interior, flows through the gas-liquid separator 54a, the heat exchange portion 57a exchanging heat with the refrigerant in the first capillary tube 53a, and the refrigerant merging portion 55, and returns to the compressor 24.

When the ice making compartment 3, the freezing compartment 4, the first switching compartment 5, and the second switching compartment 6 are cooled by the second evaporator 14b, the refrigerant control valve 52 is controlled to "state 2" in which the refrigerant flows toward the outlet 52b side. The refrigerant flowing out of the outlet 52b is reduced in pressure by the second capillary tube 53b to have a low temperature and a low pressure, enters the second evaporator 14b to exchange heat with the air in the interior, flows through the gas-liquid separator 54b, the heat exchange portion 57b exchanging heat with the refrigerant in the second capillary tube 53b, the check valve 56, and the refrigerant merging portion 55 in this order, and returns to the compressor 24. The check valve 56 is disposed to block the flow from the refrigerant merging portion 55 to the second evaporator 14b side.

Fig. 8 is an exploded perspective view showing a heat insulating partition wall provided on the rear surface side of the switching chamber. In fig. 8, the components including the second evaporator 14b as a cooler are also shown.

As shown in fig. 8, the heat-insulating partition duct board 400 (air path constituting member) has a heat-insulating partition wall 27 and a damper duct member 300.

The thermal insulation partition wall 27 has a front panel 210, a rear panel 220, and a foamed thermal insulation member 230. Further, the heat insulating partition wall 27 is disposed across the rear of the first switching chamber 5 (see fig. 2) and the second switching chamber 6 (see fig. 2). The foamed heat insulating material 230 is formed of polystyrene foam (expanded polystyrene), is formed by foam molding in advance, and is disposed between the front panel 210 and the rear panel 220. Further, a vacuum heat insulator may be provided instead of the foamed heat insulator 230. The foamed heat insulating material 230 has openings (not shown) that are opened in regions that face (overlap in the front-rear direction) the

openings

212, 214, 222, 223 of the front panel 210 and the rear panel 220.

The front panel 210 is made of synthetic resin, and has a plate portion 211 having a substantially rectangular shape in front view. In addition, the front panel 210 has a rectangular opening 212 formed in an upper portion thereof, the opening area of which is large. In the front panel 210, an opening 213 (first switching chamber second discharge port 111b) having an opening area smaller than that of the opening 212 is formed in the vicinity of the opening 212 toward the inner wall surface of the inner box 10b (see fig. 4). The opening 213 is formed in the side surface of the protruding portion 211a formed to protrude from the plate portion 211, and discharges the cold air to the left side surface of the first switching chamber 5.

In front panel 210, rectangular opening 214 having a large opening area is formed in a lower portion of plate portion 211. In the front panel 210, an opening 215 (second switching chamber second discharge port 112b) having an opening area smaller than that of the opening 214 is formed in the vicinity of the opening 214 toward the inner wall surface of the inner box 10b (see fig. 4). This opening 215 is formed on the side surface of the protruding portion 211b formed protruding from the plate portion 211, and discharges the cold air to the left side surface of the second switching chamber 6.

In the plate portion 211, a groove 216 for fitting and attaching the heat insulating partition wall 30 is formed above the

lower openings

214 and 215 and below the

upper openings

212 and 213. The groove 216 is formed entirely from one end to the other end of the plate 211 in the left-right direction. In this way, the heat insulating partition wall 27 is disposed on the rear surface of the switching chamber across the first switching chamber 5 and the second switching chamber 6 arranged vertically.

Further, the plate portion 211 has a first switching chamber return port 111c formed above the groove portion 216. Further, the plate portion 211 has a second switching chamber return port 112c formed below the groove portion 216.

Further, discharge port forming member 111 (see fig. 4) is attached to the front surface of plate portion 211 so as to cover opening 212. Further, a discharge port forming member 112 (see fig. 4) is attached to the front surface of plate portion 211 so as to cover opening 214.

The rear panel 220 is made of synthetic resin, and has a plate portion 221 having a substantially rectangular shape in front view. In addition, an opening 222 is formed in the rear panel 220 at a position facing the opening 212 of the front panel 210. In addition, an opening 223 is formed in the rear panel 220 at a position facing the opening 214 of the front panel 210. Further, a return communication passage 224 that communicates with the first switching chamber return port 111c is formed in the rear panel 220. Further, a return communication passage 225 that communicates with the second switching chamber return port 112c is formed in the rear panel 220.

Further, at the right end of the rear panel 220 as viewed from the front side, a freezer return air passage 120d extending in the vertical direction is formed. The freezer return air passage 120d communicates with the return communication passage 224. In addition, a freezer return opening 120c communicating with the freezer return air passage 120d is formed in an upper portion of the rear panel 220.

The damper duct member 300 is configured to introduce the cold air generated by the second evaporator 14b by the second fan 9b (see fig. 3), discharge the cold air from the

openings

212 and 213 of the front panel 210 to the first switching chamber 5, and discharge the cold air from the

openings

214 and 215 to the second switching chamber 6. The damper duct member 300 is configured to introduce cold air into the ice making compartment 3 and the freezing compartment 4 from above. The damper duct member 300 is configured by combining a front housing 310 disposed on the front side and a rear housing 320 disposed on the rear side (back side).

In the damper duct member 300, a rectangular opening 312a (air outlet) is formed at a position corresponding to the opening 212 in the upper front surface, and a rectangular opening 312b (air outlet) is formed at a position corresponding to the opening 213. The opening area of the opening 312a is formed larger than the opening area of the opening 312 b.

Further, in the damper duct member 300, a rectangular opening 312a (air outlet) is formed at a position corresponding to the opening 214 in the lower front face, and a rectangular opening 312b (air outlet) is formed at a position corresponding to the opening 215. The opening area of the opening 312a is formed larger than the opening area of the opening 312 b.

Further, the front panel 210 is provided with a surface heater H10 on the side corresponding to the first switching chamber 5. In addition, in rear panel 220, a surface heater H11 is provided on the inner wall of freezer return air passage 120 d. This can prevent frost from adhering to the inside of freezer return air passage 120 d. In addition, in the damper duct member 300, a surface heater H12 is provided on an inner wall facing the second fan 9 b. This can prevent frost and water from accumulating in the damper duct member 300, and can prevent frost from adhering to the second fan 9 b.

Fig. 9 is a perspective view showing a partition member disposed in the magazine. Fig. 9 shows a state in which the freezing chamber door 4a and the freezing chamber container 4b are removed from the refrigerator 1.

As shown in fig. 9, the partition member 500 is formed to partition the ice making compartment 3 and the freezing compartment 4, which are storage compartments, in the left and right directions and extend in the front-rear direction. The partition member 500 does not completely partition the ice making chamber 3 from the freezing chamber 4, but partially communicates with the freezing chamber. Further, a vertical partition plate 31 extending in the vertical direction is provided on the near side of the partition member 500. The partition member 500 is provided in a space projected in the front-rear direction of the vertical partition plate 31.

Fig. 10 is a longitudinal sectional view showing the inside of the partition member. Fig. 10 shows a state in which a cover member 60 described later is removed from the partition member 500.

As shown in fig. 10, the partition member 500 has a wire connecting portion 75 for connecting the first wire harness w1 and the second wire harness w 2. The front end of the partition member 500 and the longitudinal partition plate 31 are fixed by screws and connected. Further, a freezing chamber duct constituting freezing chamber air passage 130 is disposed behind partition member 500. Further, a heat insulating partition wall 28 (heat insulating partition member) is disposed above the partition member 500. A heat insulating partition wall 29 is disposed below the partition member 500.

The first wiring harness w1 is formed by bundling electric wires extending from the damper members (the first switching chamber first shutter 411, the first switching chamber second shutter 412, the second switching chamber first shutter 421, the second switching chamber second shutter 422), the second fan 9b (see fig. 5), the heater H12 (see fig. 8), and the like provided in the heat-insulating partition duct plate 400. The second wiring harness w2 is formed by bundling electric wires that supply electric power to the electric components such as the damper member, the second fan 9b, and the heater. In addition, the first wiring harness w1 extends from the heat-insulating partition duct board 400 located behind the freezer compartment 4. The second wiring harness w2 extends from the thermally insulating partition wall 28 located above the freezer compartment 4.

Fig. 11 is an external perspective view of the partition member.

As shown in fig. 11,

rail members

62 and 63 slidably supporting a freezing chamber door 4a (see fig. 2) holding a freezing chamber container 4b (see fig. 2) are formed on a side surface 61 of the partition member 500 on the freezing chamber 4 (see fig. 10) side. The rail member 62 is configured by 2

rails

62a and 62b extending in the front-rear direction being arranged on the side surface 61 at an interval from top to bottom. The rail member 63 slidably supports an upper freezing container (not shown). The freezing chamber container 4b is not limited to 2 layers, but may be 1 layer.

In addition, the partition member 500 is formed with a fixing portion 71 for fixing the partition member 500 to the vertical partition plate 31 (see fig. 10). The fixing portion 71 is formed in a thin plate shape elongated in the vertical direction, and a bolt insertion hole 71a for screwing is formed.

Further, the partition member 500 is formed with a communication portion 64 that communicates the freezing compartment 4 (see fig. 3) with the ice making compartment 3 (see fig. 3). The communication portion 64 is disposed between the

rail members

62 and 63. The communicating portion 64 is located rearward of a second wire housing portion 73 (see fig. 13) described later.

Fig. 12 is a side view of the partition member.

As shown in fig. 12, the rail member 62 is located below the communication portion 64. In addition, the rail 62a of the rail member 62 is located at the lower end of the partition member 500. The rail member 63 is located above the communication portion 64.

The communicating portion 64 is formed by arranging a plurality of plate members formed into a substantially V shape in a side view below the rail member 63 at intervals in the front-rear direction. Further, the communication portion 64 is formed at a position rearward in the front-rear direction.

Fig. 13 is an exploded perspective view of the partition member as viewed from the near side and the cover member side.

As shown in fig. 13, the partition member 500 is formed by combining the cartridge main body 70 and the cover member 60. The box main body 70 has an opening 70a formed on the cover member 60 side for accommodating the first wiring harness w1 (see fig. 10) and the second wiring harness w2 (see fig. 10). The first and second wiring bundles w1 and w2 are formed by bundling a plurality of wires (electric wires).

The cover member 60 is formed in a plate shape so as to close the opening 70a of the cartridge main body 70. The cover member 60 is formed with

rail members

62 and 63 and a communication portion 64.

The cartridge main body 70 has: a first wire housing unit 72 into which a first wire harness w1 described later is introduced and housed; a second wire housing section 73 into which a second wire harness w2 described later is introduced; a wiring junction 74 where the first wiring bundle w1 and the second wiring bundle w2 are merged; and a wire connecting portion 75 connecting the first wire harness w1 and the second wire harness w 2. The wire connecting portion 75 is a space for electrically connecting each electric wire of the first wire bundle w1 and each electric wire of the second wire bundle w 2.

The first wire housing portion 72 is formed to extend forward from the rear end of the cartridge main body 70. The first wire housing 72 is configured to pass through the vicinity of a heat insulating partition wall 29 (see fig. 2) that partitions the first switching compartment 5 from the ice making compartment 3 and the freezer compartment 4.

The second wire housing section 73 is formed to extend in the vertical direction of the cartridge main body 70. The second wire housing section 73 is located forward of the first wire housing section 72 and is arranged orthogonal to the first wire housing section 72.

The wiring junction 74 has a guide passage 74a that guides the first wiring bundle w1 and the second wiring bundle w2 together to the wire connecting portion 75. The wiring junction 74 has a partition surface 74b (upper surface) that separates it from the wire connecting portion 75. A notch 74c communicating with the space of the wire connecting portion 75 is formed at the front end of the partition surface portion 74 a.

The wire connecting portion 75 is a space for accommodating electric wires around the portion where the first wire bundle w1 and the second wire bundle w2 are connected, and is located above the wire junction 74. The wire connecting portion 75 is provided not on the deep side of the partition member 500 in the storage but on the near side (the side closer to the observer on the front side in the storage). In other words, the wire connecting portion 75 is positioned in front of the second wire housing portion 73 and above the wire junction portion 74.

In addition,

screw fixing holes

71b and 71c for screwing the cover member 60 are formed in the cartridge main body 70. The screw fixing hole 71b is located at an upper portion of the cartridge body 70, and the screw fixing hole 71c is located at a lower portion of the cartridge body 70. The

screw fixing holes

71b and 71c are provided diagonally with the wire connecting portion 75 interposed therebetween. In addition, the

screw fixing holes

71b, 71c are provided outside the wire connecting portion 75, whereby it is possible to suppress water or outside air from entering into the wire connecting portion 75.

The cover member 60 is attached to the case main body 70 via a soft urethane sealing material, not shown, so as to seal the openings 70a of the first wiring housing 72, the second wiring housing 73, the wiring junction 74, and the wire connecting portion 75.

The cover member 60 has a U-shaped cutout 61c in plan view so as not to block the upper end entrance of the second wire housing section 73. In the cover member 60,

screw insertion holes

61a and 61b for inserting

screws

81a and 81b are formed at positions corresponding to the

screw fixing holes

71b and 71 c.

Locking

claws

61d, 61d that lock with the cartridge main body 70 are formed at the front end of the cover member 60. The locking claws 61d are formed on the front end surface of the cover member 60 and are arranged at a vertical interval.

Fig. 14 is an exploded perspective view of the partition member as viewed from the depth side and the cover member side.

As shown in fig. 14, an introduction port 72a into which the first wire harness w1 is introduced is formed in the first wire housing 72. Further, a restricting claw 72b protruding upward is formed in the first wire housing portion 72. The restricting claws 72b are arranged at intervals in the front-rear direction and are formed close to the cover member 60.

The wire connecting portion 75 has an upper surface portion 75a located on the upper surface side, a rear surface portion 75b located on the rear surface side, a front surface portion 75c located on the front surface side, and a left side surface portion 75d located on the left side surface side, and constitutes a housing portion 75s housing the first wire bundle w1 and the second wire bundle w 2.

The wire connecting portion 75 is formed with an anti-protrusion rib 75e extending downward from the upper surface portion 75a and preventing a part of the first and second wire bundles w1 and w2 from protruding. The protrusion preventing rib 75e is formed in an elongated plate shape in the front-rear direction from the front surface portion 75c to the rear surface portion 75 b. Further, the protrusion prevention rib 75e has a front edge connected to the front face portion 75c and a rear edge connected to the rear face portion 75 b. That is, the protrusion prevention rib 75e is not formed on the entire storage section 75s, but is formed only on a part of the storage section 75s, that is, on the upper portion. By forming the protrusion prevention rib 75e only on the upper portion of the housing portion 75s and approaching the cover member 60 in parallel to the inside of the cover member 60, water entering from above drops along the inside of the cover member 60, and is less likely to contact the first and second wire bundles w1 and w 2. Further, water is discharged from the notch portion 74c, and accumulation of water on the partition surface portion 74b can be suppressed.

Further, locking

holes

76a, 76a are formed at a distance in the vertical direction on the cover member 60 side of the housing portion 75s (the protrusion preventing rib 75 e). The locking hole 76a is used to lock the locking claw 61d of the cover member 60.

Fig. 15 is a sectional view XV-XV of fig. 12.

As shown in fig. 15, the wire connecting portion 75 is configured by being surrounded by an upper surface portion 75a, a rear surface portion 75b (see fig. 14), a front surface portion 75c, a left side surface portion 75d, a partition surface portion 74b, and the cover member 60. In addition, the protrusion-preventing ribs 75e are located inside the cover member 60.

The wire connecting portion 75 has a bag-shaped portion 75t with a concave surface facing downward in the vertical direction due to the protrusion preventing rib 75e, the upper surface portion 75a, the rear surface portion 75b (see fig. 14), the front surface portion 75c, and the left side surface portion 75 d.

The rail member 63 is located on the side of the housing portion 75 s. The rail member 62 is located on the side of the wiring junction 74.

As shown in fig. 16, the cover member 60 has a hook portion 66a formed at the lower end of the communication portion 64 and fixed to the cartridge body 70. The hooking portions 66a are formed at a plurality of positions (3 positions in the present embodiment) at intervals in the front-rear direction. Further, the hook portion 66a is formed to protrude toward the cartridge main body 70 side.

Further, a locking member 65a is formed at the lower end of the cover member 60. The locking members 65a are formed at a plurality of positions (2 positions in the present embodiment) at intervals in the front-rear direction.

A projection 76a for hooking the hooking portion 66a is formed in the cartridge main body 70. The protrusions 76a are formed at a plurality of positions corresponding to the hook portions 66 a. The protrusion 76a is formed to protrude upward above the first wire housing 72 (see fig. 14).

In addition, a rail member 78 slidably supporting the ice making chamber door 3a (refer to fig. 2) of the ice making chamber container 3b (refer to fig. 2) holding the ice making chamber 3 (refer to fig. 2) side is formed at the case main body 70. The rail member 78 is formed symmetrically with respect to the rail member 62.

As shown in fig. 17, the first wiring housing portion 72 has an ascending inclined surface 72d (ascending inclined portion) that ascends as it goes forward formed on the inlet 72a side. This can prevent water from entering the partition member 500 from the inlet 72 a.

The first wire housing portion 72 is formed with a horizontal surface 72e that is formed continuously with the rising inclined surface 72d and extends horizontally forward. The horizontal surface 72e is formed in front of the second wire housing section 73. The restricting claw 72b is formed on the horizontal surface 72 e. The first wire harness w1 is configured to pass through the depth side of the restricting claw 72b in the direction perpendicular to the paper surface.

A descending inclined surface 74s (descending inclined portion) that descends as it goes forward is formed continuously with the horizontal surface 72e at the wiring junction 74. The descending inclined surface 74s is located on a projection below the second wire housing section 73 in the vertical direction. The inclination angle of the descending inclined surface 74s is set smaller than the inclination angle of the ascending inclined surface 72 d.

A ring-shaped hook member 76a for hooking the first wire harness w1 is provided below the second wire housing section 73. A ring-shaped hook member 76b for hooking the second wire harness w2 is provided below the second wire housing section 73. Further, a ring-shaped hook member 76c is provided at the wiring junction 74 to hook the first wiring harness w1 and the second wiring harness w2 together. The

hook members

76a, 76b, 76c are hooked on the

hook members

77a, 77b, 77c formed in the vicinity.

In the wire connecting portion 75, the first wire harness w1 and the second wire harness w2 are electrically connected via a connector member 90 made of resin. Thus, by wiring using the connector member 90, wiring work becomes easy. Although shown in fig. 17 for simplicity, the first wire harness w1 and the second wire harness w2 are actually connected via a plurality of connector members. That is, in the wire connecting portion 75, the plurality of connectors of the first wire harness w1 and the plurality of connectors of the second wire harness w2 are connected. At this time, if all the connectors of the connector component 90 are accommodated in the bag-shaped portion 75t (see fig. 15), the thickness of the connector in the direction perpendicular to the paper surface of fig. 17 becomes excessively large, and it becomes difficult to accommodate all the connector components 90 in the bag-shaped portion 75 t. In the present embodiment, the plurality of connector members 90 are dispersed, a part of the plurality of connector members 90 is housed so as to be positioned inside the bag-shaped portion 75t, and the remaining (remaining) connector members 90 are housed in the housing portions 75s at positions (regions where the protrusion preventing ribs 75e are not formed) away from the bag-shaped portion 75 t. In this way, in the wire connection portion 75, a part of the plurality of connector components 90 is housed in the bag-shaped portion 75t (refer to fig. 15), and the remaining connector components 90 are housed in the housing portions 75s1 (refer to fig. 15, non-bag-shaped portions) different from the bag-shaped portion 75 t. In the side view shown in fig. 17, the non-bag-shaped portion (the housing portion 75s1) is configured to have a larger housing volume than the bag-shaped portion 75 t. This allows the connector component 90 including a plurality of connectors to be accommodated in the wire connecting portion 75. Further, since the housing portion 75s1 is formed larger than the bag-shaped portion 75t, the plurality of connector components 90 connected to the wires can be easily housed in the wire connecting portion 75.

Fig. 18 is a longitudinal sectional view of the partition member.

As shown in fig. 18, the first wire housing portion 72 has a hollow (reduced thickness) shaped portion 72t on the back surface (lower side) of the rising inclined surface 72d and the horizontal surface 72 e. The wiring junction 74 also has a recessed (reduced thickness) shaped portion 72u on the back surface (lower side) of the descending inclined surface 74 s.

This prevents the spacer member 500 from sagging during the die-forming process, and improves the strength against the bending stress. Further, by providing the recessed shape portion 72t not on the upper side but on the lower side of the partition member 500, water can be prevented from accumulating in the recessed shape portion.

Fig. 19 is an enlarged view of a portion a of fig. 18.

As shown in fig. 19, in the wiring junction 74, a rib 74d (second rib) is formed so as to protrude downward from the lower surface of the partition surface 74 b. In the wiring junction 74, a rib 74f (first rib) is formed on a bottom surface 74h located forward of the descending inclined surface 74 s. The rib 74d is located on the rear side in the front-rear direction with respect to the rib 74 f.

A drain hole 74g for draining water is formed between the lower end of the descending inclined surface 74s and the rib 74f so as to penetrate in the vertical direction. The drain holes 74g are formed at a plurality of places, for example. The drain hole 74g is located directly below the rib 74 d.

Thus, even if water flows down from the descending slope 74s, the water flow is blocked by the rib 74f and is discharged from the drain hole 74g to the outside of the partition member 500. As a result, the inflow of water to the wire connecting portion 75 side can be suppressed.

Even if water flows down through the rear surface portion 75b (wall surface) of the second wire housing section 73, the water drops while contacting the rib 74d and is discharged from the water discharge hole 74g to the outside of the partition member 500. At this time, since the rib 74f is positioned forward of the rib 74d, water dropping in contact with the rib 74d is blocked by the rib 74f, and thus the water can be prevented from flowing into the wire connecting portion 75 side.

Fig. 20 is a sectional view XX-XX of fig. 12.

As shown in fig. 20, a restricting claw 72b is formed in the first wire housing portion 72 through which the first wire harness w1 passes. The restricting claw 72b is disposed apart from the inner wall surface of the cover member 60. In other words, a gap S1 is formed between the back surface of the cover member 60 and the restricting claw 72 b. Further, the rail member 62 is located on the side of the first wiring harness w 1.

In addition, in the cartridge main body 70 of the partition member 500, the rail member 78 is located at the same height position as the rail member 62. Further, a space (air layer) 72t1 is formed between the first wire housing section 72 and the rail member 78. The space 72t1 communicates with the hollow portion 72 t.

When the freezing chamber 4 is opened, the entire wall inside the refrigerator is temporarily heated by the outside air. At this time, when the wire (copper wire) of the excessively cooled first wiring harness contacts the wall (the back surface of the cover member 60), dew condensation occurs on the rail member 62 of the partition member 500 (the partition between the ice making chamber 3 and the freezer compartment 4). Thus, freezing occurs, and the sliding property of the freezing chamber door 4a is deteriorated. In the present embodiment, the first wiring harness w1 (wire) is arranged away from the wall surface of the freezer compartment 4 by providing the restricting claw 72 b. Further, by providing the space 72t1, the first wiring harness w1 is disposed away from the wall surface of the ice making chamber 3. As a result, dew condensation and freezing of the

rail members

62, 78 can be suppressed.

Further, an elastic member 79 having heat insulation properties may be attached to the back surface of the cover member 60 (see fig. 16). A member (not shown) similar to the elastic member 79 may be provided between the back surface of the cover member 60 and the first wiring harness w 1. In this case, the same effects as those described above can be obtained.

Fig. 21 is a bottom view of the partition member.

As shown in fig. 21, the partition member 500 is provided with locking

members

65a, 65a for locking the bottom surface of the cartridge main body 70 and the bottom surface of the cover member 60. The locking member 65a includes a locking claw 60b having a handle 60a formed on the cover member 60, and a locked portion (not shown) formed on the cartridge main body 70 and locked by the locked claw 60 b. In this way, the handle 60a can be seen from the outside of the partition member 500, and it can be seen from the outside whether or not the cartridge main body 70 and the cover member 60 are reliably locked. Further, by forming the handle 60a to be long, the operability when removing the cover member 60 can be improved.

Fig. 22 is a perspective view of the heat insulating partition wall as viewed obliquely from the front. Fig. 23 is a perspective view of the heat insulating partition wall as viewed obliquely from the rear.

As shown in fig. 22, the heat insulating partition wall 28 is formed in a substantially quadrangular shape by combining a lower case 28A constituting the face portions on the ice making compartment 3 and the freezing compartment 4 side and an upper case 28B constituting the face portion on the refrigerating compartment 2 side. In the heat insulating partition wall 28, a gap 91 (see fig. 24) is formed between the surface of the lower case 28A and the surface of the upper case 28B. Further, a water flow groove 23a is formed in the rear end upper surface of the heat insulating partition wall 28.

Further, a filling hole 81 (first hole) for filling a foamed heat insulating material (foamed urethane) is formed at the front end of the right side surface of the heat insulating partition wall 28. A similar filling hole 82 (second hole, see fig. 24) is also formed at the front end of the left side surface of the thermal insulation partition wall 28.

The filling hole 81 is formed in a quadrangular shape by combining a notch formed in the lower case 28A to have an upward concave shape and a notch formed in the upper case 28B to have a downward concave shape. The direction (axial direction) of the filling hole 81 is the left-right direction. Further, the filling hole 82 is also configured as a quadrangular hole by combining the lower case 28A and the upper case 28B, similarly to the filling hole 81. The direction (axial direction) of the filling hole 82 is the left-right direction as in the filling hole 81.

As shown in fig. 23, an introduction port 83 into which the third wiring harness w3 (see fig. 26) is introduced is formed in the rear surface of the heat insulating partition wall 28. The introduction port 83 is formed in a rectangular shape and is formed at a position on the right side in the left-right direction (left side in the drawing). The third wiring harness w3 is a part of the second wiring harness w2, and includes lines of a high-voltage system (requiring a high voltage) such as a heater.

Further, an introduction port 84 into which the fourth wiring harness w4 (see fig. 26) is introduced is formed on the rear surface of the heat insulating partition wall 28. The introduction port 84 is formed in a quadrangular shape and is formed at a position on the left side in the left-right direction (the right side in the figure). The inlet 84 is formed to have a smaller opening area than the inlet 83. The fourth wiring harness w4 is another part of the second wiring harness w2, and includes lines for controlling a signal system (requiring a low voltage) such as a panel and a sensor.

As shown in fig. 24, in the lower case 28A, wiring storage recesses 86, 87, 88 extending in the front-rear direction are formed at substantially the center in the left-right direction (width direction). These wiring

accommodating recesses

86, 87, 88 are formed continuously in a substantially straight line in the front-rear direction.

The wiring accommodating recess 86 is formed in a quadrangular shape in plan view, and has a through hole 85 through which the second wiring harness w2 passes. Further, a hooking portion 86a for hooking the second wire harness w2 is formed in the wire housing recess 86. The hooking portion 86a is formed in an L shape, and the second wiring harness w2 is less likely to fall off. In addition, a plurality of (2 positions in the present embodiment) columnar (rod-shaped) hooking portions 86b are formed in the wiring accommodating recess portion 86.

The wire housing recess 87 communicates with the rear end of the wire housing recess 86, and is formed to be elongated in the front-rear direction. In addition, a pressing portion 89a that restricts a wiring harness (wire harness) is formed in the wiring housing recess 87. The pressing portions 89a are formed at a plurality of positions (2 positions in the present embodiment) at intervals in the front-rear direction.

The wire housing recess 88 communicates with the rear end of the wire housing recess 87 and is formed to be elongated in the front-rear direction. In addition, a pressing portion 89b that restricts a wiring harness (wire harness) is formed in the wiring housing recess portion 88. The pressing portions 89b are formed at a plurality of positions (2 positions in the present embodiment) at intervals in the front-rear direction.

Each of the

pressing portions

89a, 89b is resin-molded integrally with the lower case 28A, and has a self-hinge (self-hinge) structure. The

pressing portions

89a and 89b press the second wire harness w2 against the bottom surfaces of the wire housing

concave portions

87 and 88 by engaging the distal end portions with the bottom surfaces of the wire housing

concave portions

87 and 88. That is, the second wire harness w2 is attached to the bottom surfaces of the wire housing concave portions 87 and 88 (attached to the bottom surfaces as much as possible) (see fig. 26). Thus, the second wiring harness w2 is in contact with the bottom surface in the lower case 28A, not the top surface in the upper case 28B.

Thus, the wiring

accommodating recesses

86, 87, 88 are formed to extend in the front-rear direction. The wiring storage recesses 86, 87, and 88 are located at substantially the center in the left-right direction (width direction). In other words, the wiring

accommodating recesses

86, 87, 88 are formed at positions where the distance to the filling hole 81 is substantially the same as the distance to the filling hole 82. Accordingly, when the foaming liquid flows into the heat insulating partition wall 28 from the filling holes 81 and 82, the foaming liquid easily reaches the second wiring harness w2 at the final stage of filling the heat insulating partition wall 28. Since the second wire bundle w2 may become a cause of blocking the flow of polyurethane as described later, it is preferable to provide the second wire bundle w2 and the

wire housing recesses

86, 87, 88 in this region when suppressing the generation of unfilled regions.

For example, when only one filling hole, for example, the filling hole 81 is provided for the wiring accommodating

concave portions

86, 87, 88, it is preferable that the wiring accommodating

concave portions

86, 87, 88 are provided in the vicinity of an edge (an edge in the "left" direction indicated by an arrow in fig. 24) opposite to an edge (an edge in the "right" direction indicated by an arrow in fig. 24) where the filling hole 81 is provided.

As shown in fig. 25, a cylindrical portion 85a extending downward from the edge of the through hole 85 through which the second wire harness w2 passes is formed on the bottom surface of the heat insulating partition wall 28. The cylindrical portion 85a is located forward of the center in the front-rear direction, and is formed at a position corresponding to the second wire housing portion 73 (see fig. 10) of the partition member 500. In addition, reinforcing

portions

85b and 85c for reinforcing the lower case 28A are formed in front and rear of the cylindrical portion 85 a.

Fig. 26 is a plan view showing the arrangement of the second wiring harness w2 in the heat insulating partition wall. Here, the second wiring harness w2 is simplified in illustration by one line.

As shown in fig. 26, the second wiring harness w2 is pulled out into the lower case 28A, then hooked on one of the hooking portions 86b, then hooked on the other hooking portion 86b, and further hooked on the hooking portion 86 a. In this way, the second wiring harness w2 is hooked substantially in an S shape by the hooking

portions

86a and 86 b. Thus, even if the operator pulls the second wire harness w2 from the outside of the lower case 28A or from the inside of the lower case 28A during manufacturing, the position of the second wire harness w2 does not change.

In addition, the second wire harness w2 hooked on the hooking portion 86a is arranged in the wire housing recess 87 and then in the wire housing recess 88. The second wire harness w2 passing through the wire housing recess 87 is pressed from above by the pressing portion 89 a. Further, the second wire harness w2 having passed through the wire housing recess 88 is pressed from above by the pressing portion 89 b. After that, the second wire bundle w2 is distributed into a third wire bundle w3 for power system power supply and a fourth wire bundle w4 for signal system power supply. Then, the third wire bundle w3 passes through the introduction port 83, and the fourth wire bundle w4 passes through the introduction port 84.

Fig. 27 is a schematic view showing a variation of the filled region of the foamed heat insulating material on the heat insulating partition wall. In fig. 27, the upper part is an initial stage, the middle part is a halfway stage, and the lower part is a final stage. Fig. 27 shows a state where the upper case 28B is removed.

As shown in the upper part of fig. 27, the heat insulating foam material FI is filled from the filling holes 81 and 82, and the heat insulating foam material FI spreads radially from the filling holes 81 and 82. In the stage of the upper diagram of fig. 27, the heat insulating foam material FI filled from the filling hole 81 and the heat insulating foam material FI filled from the filling hole 82 are not in contact with each other. The heat insulating foam material FI filled from the filling hole 81 is in a state of starting to be filled in the wiring storage recess 86.

Thereafter, as shown in the middle of fig. 27, the foamed heat insulating material FI filled from the filling hole 81 and the foamed heat insulating material FI filled from the filling hole 82 join at the center in the width direction. Then, the filling region of the foamed heat insulating material FI is expanded rearward until the foamed heat insulating material FI is filled in the positions including all the wiring accommodating recessed

portions

86, 87, 88.

Thereafter, as shown in the lower part of fig. 27, the filling region gradually expands rearward, and the foamed heat insulating material FI is filled into the entire heat insulating partition wall 28, and the filling is completed.

Thus, the wiring

accommodating recesses

86, 87, 88 accommodating the second wiring harness w2 are formed along the front-rear direction, and are located at substantially centers in the left-right direction where the distances to the filling holes 81, 82 are substantially equal. This can prevent the second wiring harness w2 from obstructing the flow of the foaming and heat insulating material FI until the foaming and heat insulating material FI reaches the center in the left-right direction. As a result, the occurrence of a region in the heat insulating partition wall 28 in which the foamed heat insulating material FI is not sufficiently filled can be suppressed, and the heat insulating performance of the heat insulating partition wall 28 can be suppressed from being impaired.

Next, the function of the pressing portions 89a and 89B provided in the lower case 28A will be described with reference to fig. 28A and 28B. Fig. 28A is a schematic diagram showing the second wiring harness at the position of the present embodiment, and fig. 28B is a schematic diagram showing the first wiring harness at the position of the comparative example.

The wires (electric wires) constituting the second wiring harness have high thermal conductivity, and the cold and hot of the freezer compartment may affect the refrigerator compartment 2. That is, a crisper placed on the heat insulating partition wall 28 and defining a crisper compartment 36 (see fig. 2) is disposed in the refrigerating compartment 2, and the crisper is a substantially closed space and is indirectly cooled (cooled by thermal conduction). Further, the heater is turned ON/OFF (ON/OFF) using a heater, and cooling is performed using a temperature zone of the freezing compartment (ice making compartment 3, freezing compartment 4). Further, refrigerating room 2 is a high humidity region, and when located on the upper surface of heat insulating partition wall 28, it freezes due to high humidity.

As shown as a comparative example in fig. 28B, when the heat insulating foam material FI is filled in a state where the second wire harness w2 is in contact with the upper case 28B, the coldness of the freezing room (the ice making room 3 and the freezing room 4) is transmitted to the heat insulating foam material FI. The second wiring harness w2 thus receives more cold from the foamed heat insulating material FI. The second wiring harness w2 transmits more cooling energy to the refrigerating compartment 2. As a result, the fresh food compartment of the refrigerating compartment 2 is excessively cooled, and the like.

Then, in the present embodiment, as shown in fig. 28A, the second wiring harness w2 is configured to be pressed against the lower case 28A by using the

pressing portions

89a, 89 b. With this configuration, the second wiring harness w2 receives a large amount of cooling energy from the freezer compartment (ice compartment 3 and freezer compartment 4). However, the amount of cold transferred from the second wiring harness w2 to the foamed heat insulating material FI is suppressed to be low. This suppresses the amount of cooling transmitted to the refrigerating compartment 2 to be low. As a result, it is possible to prevent problems such as excessive cooling of the refrigerating compartment 2 and the crisper. Such a problem is particularly significant when no vacuum heat insulator is disposed between the heat insulating partition wall 28, the lower case 28A disposed near the low temperature side atmosphere, and the freezing

chambers

3 and 4, and the upper case 28B disposed near the high temperature side atmosphere, and the refrigerating chamber 2 or the fresh food box.

In summary, when there is a temperature difference between one side and the other side of the thermal insulating partition wall 28, the second wiring harness w2 is preferably arranged at a position closer to the low temperature side.

Next, the second wire harness w2 passing through the wire housing recess 87 is described with reference to fig. 29. Fig. 29 shows a sectional view XXII-XXII of fig. 22.

The second wiring harness w2 is formed by connecting a plurality of wires (for example

) Is formed by bundling. It has been found that: when the foaming and heat insulating material FI filled in the heat insulating partition wall 28 gradually foams and the foaming region expands, the flow of polyurethane is inhibited when the maximum dimension direction of the envelope of the second wire bundle w2 is originally along the space thickness direction of the heat insulating partition wall 28 or when the maximum dimension direction is the space thickness direction of the heat insulating partition wall 28 due to a change in the position of the wire as the foaming and filling force is applied to the second wire bundle w 2. That is, the second wiring harness w2 may block the flow of the foamed heat insulating material FI and cause an unfilled region.

Specifically, the spatial thickness of the heat insulating partition wall 28 (excluding the spatial thickness of the wiring accommodating recess 87) is set to H. When the maximum dimension R of the cross section of the second wire bundle w2 was examined, it was found that if the second wire bundle w2 was bundled without a gap, the envelope approached a circle and could be obtainedCan be approximated as

(sum of cross-sectional area of wires/circumferential ratio), but this fails to correctly reduce the fact. In fact, gaps are generated between the wires anyway, and as a result, it is found that the sum of the diameters of the wires constituting the second wire bundle w2 can be given a good approximation. Regarding the diameter, the diameter is a diameter if the cross section of the wire is circular, and the maximum dimension if the wire is substantially circular or the like.

It was found that when H-R <5mm is established regardless of the viscosity of the foamed liquid generally used in the field of refrigerators, the size of the second wiring harness w2 is too large relative to the thickness of the heat insulating partition wall 28, and a countermeasure should be considered as a cause of blocking the flow of polyurethane.

In view of this, in the present embodiment, in order to sufficiently secure a space for the foamed heat insulating material FI to flow and suppress flow obstruction, the wiring accommodating recess 87 is provided so that the thickness H of the urethane flow space is increased for a portion where H-R <5mm is satisfied, and the second wiring harness w2 is disposed here. This makes it possible to increase the thickness (for convenience, referred to as "H") of the portion where the second wiring harness w2 is provided, and to make H' -R <5mm false.

As described above, the refrigerator 1 according to the present embodiment includes: a partition member 500 extending in the front-rear direction and partitioning the ice making chamber 3 and the freezing chamber 4 arranged on the left and right sides; a first wiring harness w1 extending from the rear of the ice making chamber 3 and the freezer compartment 4; and a second wiring harness w2 extending from above the ice making compartment 3 and the freezer compartment 4. The wire connecting portion 75 that connects the first wire harness w1 and the second wire harness w2 is provided on the near side of the partition member 500 (see fig. 10). Thus, when the first wiring harness w1 and the second wiring harness w2 are connected, the operator does not need to put his or her body into the garage or to reach his or her hands for operation, and operability is improved.

In the present embodiment, the first wire harness w1 and the second wire harness w2 are connected via a plurality of connectors 90. The partition member 500 includes: a box main body 70 formed with an opening 70a that accommodates the first and second wire bundles w1 and w 2; and a cover member 60 closing the opening 70 a. The wire connection portion 75 is formed in the box main body 70, and has a bag-shaped portion 75t (refer to fig. 15) that receives a part of the plurality of connectors 90. Thus, by housing a part of the connector members 90 in the bag-shaped portion 75t, it is possible to suppress the plurality of connector members 90 from overlapping and becoming unable to be housed, and it is possible to cover the cartridge main body 70 with the cover member 60.

In the present embodiment, the bag-shaped portion 75t has an anti-protrusion rib 75e extending vertically downward from the upper end surface of the partition member 500 (see fig. 14). This can prevent the wiring connecting the first wire harness w1 and the second wire harness w2 from protruding from the wire connecting portion 75. Further, by providing the protrusion prevention rib 75e, the housing of the connector member 90 and the reinforcement of the wire connecting portion 75 can be performed with a simple structure. Further, since the protrusion prevention rib 75e is formed only on the upper portion of the housing portion 75s and is parallel to and close to the inner side of the cover member 60, water entering from above drops along the inner side of the cover member 60, and is less likely to contact the first and second wiring bundles w1 and w 2. Further, water is drained from the notch 74c, and accumulation of water on the partition surface 74b is suppressed.

In the present embodiment, the partition member 500 has the wiring junction 74 in which the first wiring harness w1 and the second wiring harness w2 are joined and guided to the wire connecting portion 75. The wire connecting portion 75 is disposed vertically above the wiring junction 74 (see fig. 17). Thereby, water can be prevented from entering the wire connecting portion 75.

In the present embodiment, the partition member 500 has the first wire housing portion 72 that houses the first wire harness w1 so as to extend in the front-rear direction. An ascending inclined surface 72d (see fig. 17) that ascends forward is formed on the inlet side of the first wire housing portion 72. This can prevent water from entering the partition member 500 from behind.

In the present embodiment, a descending inclined surface 74s descending forward is formed on the outlet side of the first wire housing portion 72. A drain hole 74g is formed in front of the descending inclined surface 74 s. A rib 74f (see fig. 19) protruding upward is formed in front of the drain hole 74 g. This allows water that has entered the first wire housing portion 72 to be discharged to the outside of the partition member 500.

In the present embodiment, the second wiring accommodation portion 73 is provided for accommodating the second wiring harness w2 so as to extend in the vertical direction. A rear surface portion 75b (front side passage wall surface) located on the front side of the second wire housing section 73 is located above the drain hole 74g (see fig. 19). This allows water entering from the second wire housing 73 to be discharged to the outside of the partition member 500.

In the present embodiment, the heat insulating partition wall 28 is provided which accommodates the second wiring harness w2 and has the lower case 28A and the upper case 28B facing each other with the space 91 therebetween. The heat insulating partition wall 28 has: filling

holes

81, 82 communicating with the void 91; and a foamed heat insulating material FI (refer to fig. 27) filled in a region including the void 91 and the filling holes 81 and 82. The filling hole 81 is located on one side and the filling hole 82 is located on the other side with respect to the direction orthogonal to the extending direction of the second wire bundle w 2. The second wire bundle w2 is located at a position in the void near the middle between the filling hole 81 and the filling hole 82. This can prevent the flow of the foaming and heat insulating material FI from being obstructed by the second wiring harness w 2.

The present embodiment has been described above with reference to the drawings, but the present embodiment is not limited to the above description and includes various modifications. For example, although the refrigerator 1 having the first switching room 5 and the second switching room 6 is described as an example in the present embodiment, the refrigerator may not have the first switching room 5 and/or the second switching room 6.

The present application includes the following technical ideas.

[ Note 1]

A refrigerator includes:

2 face portions opposed to each other across a gap in the region of the heat insulating partition portion;

auxiliary wiring or wiring bundles are arranged in the gaps; and

a foamed thermal insulating member disposed in the gap,

the 2 faces include a low-temperature side face portion of the atmosphere near the low-temperature side and a high-temperature side face portion of the atmosphere near the high-temperature side,

the wiring or wiring harness is disposed at a position close to the low-temperature side surface portion of the 2 surface portions.

[ Note 2]

The refrigerator according to supplementary note 1, wherein,

no vacuum heat insulating material is disposed between the heat insulating partition, the high-temperature side surface portion and the atmosphere on the high-temperature side, and between the low-temperature side surface portion and the atmosphere on the low-temperature side.

[ Note 3]

A refrigerator includes:

a wiring harness disposed in the gap; and

a foamed thermal insulating member disposed in the gap,

when the thickness of the gap is H and the sum of the diameters of the wires forming the wire bundle is R,

part or all of the portion of the wiring harness located in a region where the inequality H-R <5mm holds is disposed in a wiring housing recess provided in any one of the 2 surfaces.

Description of the reference numerals

1 refrigerator

3 Ice making room (storage room)

4 freezing chamber (storage chamber)

5 first switching chamber

6 second switching chamber

28 Heat insulation partition wall (Heat insulation partition component)

28A lower casing (face)

28B Upper casing (face)

60 cover part

70 box main body

70a opening

72 first wire housing section

72d ascending inclined surface (ascending inclined part)

73 second wiring accommodation part

74 wiring merging part

74a partition surface part (upper surface of wiring merging part)

74d Rib (second Rib)

74s descending inclined surface (descending inclined portion)

74f Rib (first Rib)

74g drain hole

75 wire connection part

75e anti-extension rib (Rib)

75s accommodating part

75t bag shape part

81 fill hole (first hole)

82 filling hole (second hole)

90 connector parts (connector)

91 gap

400 heat insulation separating conduit plate

500 partition member

FI foaming heat insulation part (Heat insulation part)

w1 first wiring harness (first wiring section)

w2 second wiring harness (second wiring section).

Claims

1. A refrigerator is characterized by comprising:

a partition member extending in the front-rear direction and partitioning the storage chamber;

a first wiring unit which is composed of a wiring or a wiring bundle extending from one direction of the storage chamber; and

a second wiring unit composed of a wiring or a wiring bundle extending from the other direction of the storage chamber,

a wiring portion for connecting the first wiring portion and the second wiring portion is provided on the front side of the partition member.

2. A refrigerator as claimed in claim 1, wherein:

the first wiring section and the second wiring section are connected via a plurality of connectors,

the partition member has: a box main body having an opening for accommodating the first wiring unit and the second wiring unit; and a cover member closing the opening,

the wire connection portion is formed in the box main body, and one part, another part, or the rest of the plurality of connectors are housed in different places.

3. A refrigerator as claimed in claim 2, wherein:

in the bag-shaped portion, one surface on the cover member side is formed of a rib extending downward in the vertical direction from the upper end surface of the partition member.

4. A refrigerator as claimed in claim 2 or 3, wherein:

the partition member has a wiring merging portion where the first wiring portion and the second wiring portion are merged and guided to the terminal portion,

the wire connecting portion is disposed above the wiring junction portion in the vertical direction.

5. The refrigerator according to any one of claims 1 to 4, wherein:

the partition member has a first wiring housing portion that houses the first wiring portion so that the first wiring portion extends in the front-rear direction,

an ascending slope portion ascending forward is formed on an inlet side of the first wiring accommodation portion.

6. The refrigerator of claim 4, wherein:

the wiring junction portion is formed with a descending slope portion descending forward.

7. The refrigerator of claim 6, wherein:

a drain hole is formed in front of the descending inclined portion,

a first rib protruding upward is formed in front of the drain hole.

8. The refrigerator of claim 7, wherein:

a second wiring housing section for housing the second wiring section in such a manner that the second wiring section extends in the vertical direction,

a second rib protruding downward is formed on the upper surface of the wiring junction above the drain hole.

9. The refrigerator according to any one of claims 1 to 8, wherein:

a heat insulating partition member having 2 face portions facing each other with a gap therebetween and accommodating the second wiring portion,

the heat-insulating partition member has: a hole communicating with the void; and a foamed heat insulating member filled in a region including the void and the hole,

a first hole as the hole is located on one side and a second hole as the hole is located on the other side in a direction orthogonal to an extending direction of the second wiring portion,

the second wiring portion is located at a position near the middle of the first hole and the second hole in the gap.

10. A refrigerator is characterized by comprising:

2 surface parts facing each other with a gap in the region of the heat insulating partition part;

auxiliary wiring or wiring bundles are arranged in the gaps; and

a foamed heat insulating member disposed in the gap,

as the 2 faces, there are: a low-temperature side surface portion of the atmosphere near the low-temperature side; and a high-temperature side portion of the atmosphere near the high-temperature side,

11. A refrigerator as claimed in claim 10, wherein:

no vacuum heat insulator is disposed between the heat insulating partition, the high-temperature side surface portion and the atmosphere on the high-temperature side, and between the low-temperature side surface portion and the atmosphere on the low-temperature side.

12. A refrigerator as claimed in claim 11, wherein:

the high temperature side surface portion is substantially in contact with the fresh food compartment.

13. A refrigerator as claimed in claim 11 or 12, wherein:

the wiring or wiring harness is a wiring harness,

14. A refrigerator is characterized by comprising:

a wiring harness disposed in the gap; and

a foamed heat insulating member disposed in the gap,