CN115210518B - Refrigerator with a refrigerator body - Google Patents

Abstract

A refrigerator (1) of the present invention comprises: an outer case (10 a); an inner case (10 b) having an opening on a front surface; a cord (d 1) which is led out from the outer case (10 a) side to the opening side of the inner case (10 b) through the hole (10 h), and which is mechanically restricted at the outer case (10 a) side from the hole (10 h); and connection portions (k 1, k 2) that connect the flexible wire (d 1) with other flexible wires (8 b2, 14h 1), wherein the housing portion (10 b 1) that houses the connection portions (k 1, k 2) is provided in a region different from the hole (10 h).

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to a refrigerator and a manufacturing method thereof.

Background

The refrigerator has the following types: the refrigerating chamber is disposed at the uppermost part, the vegetable chamber is disposed at the lowermost part, the ice making chamber is disposed at the upper left part of the center, the first freezing chamber with small volume is disposed at the upper right part of the center, and the second freezing chamber with large volume is disposed at the lower part of the center.

In the refrigerator, the in-box device is connected to a power source as follows. For example, a connector of a lead wire led out from the in-box device is connected to a connector of a lead wire led out from the power supply.

As for the above-described processing of the lead and the connector, there is a technique of patent document 1.

In patent document 1, in paragraph 0017 and the like, a lead 11 from a power supply along a polyurethane 16 region is led out from a hole 23 provided in a housing portion 18 that is a recess provided in an inner box. The opening of the storage portion 18 toward the storage chamber side is closed by a closing plate 20 having a movable piece 22 that allows the lead to be taken in and out.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 6-147738 (paragraphs 0016-0019, FIG. 3, FIG. 4, FIG. 6)

Disclosure of Invention

Problems to be solved by the invention

However, the portion of the lead 11 of patent document 1 along the region filled with polyurethane 16 is fixed by polyurethane 16 (paragraph 0018). That is, the length of the lead 11 led out of the hole 23 is fixed on the inner side of the hole 23.

On the other hand, the housing 18 is provided on the inner side of the side surface of the inner box, and when the operator performs the wiring at the housing 18, for example, the operator needs to connect via the front surface opening of the inner box (the opening closed by the storage door). Therefore, the access to the storage unit 18 is a long distance, and it is difficult to perform work.

Therefore, the longer the lead 11 drawn out, the more the worker can work near the front surface opening that is far from the housing 18 and is close to the worker, and therefore, workability is good. In this regard, the storage portion 18 is more remarkable than the case where it is located on the back surface of the inner case or on the back surface side in the front-rear direction of the side surfaces.

However, if the length of the lead 11 is long, the post-wiring process becomes inconvenient. Specifically, even if the wired lead 11 is mounted in the housing 18, the hole 23 as the start point of the drawing and the wired portion as the end point are located in the housing 18. Therefore, the lead 11 is substantially annular, and is easily flexible and difficult to store.

In addition, in order to completely house all of the starting point to the end point of the lead 11, the housing portion 18 of the recess needs to be enlarged. If the recess receiving portion 18 is large, the air passage around the recess receiving portion 18 is narrowed, or the urethane flow area is narrowed. However, when the lead 11 is placed outside the housing 18, the workability is reduced or the internal volume of the case is narrowed.

Means for solving the problems

In order to solve the above problems, a refrigerator according to the present invention includes:

an outer case;

an inner case having an opening at a front surface;

a cord which is led out from the outer case side to the opening side of the inner case through a hole and is mechanically restricted at the outer case side from the hole;

a connection portion that connects the cord with other cords,

the receiving portion for receiving the connection portion is provided in a region different from the hole.

In addition, regarding a manufacturing method of the refrigerator of the present invention, the refrigerator has:

an inner case having an opening at a front surface;

a first recess formed in the inner case, in which a case is disposed, or in which a part or all of the first recess is covered with a water-repellent or moisture-repellent material;

a hole formed outside the first recess,

the manufacturing method comprises the following steps:

A cord preparation step of disposing a cord from the outer case side to the opening side of the inner case through the hole;

an injection step of injecting foam liquid of a foam heat insulating material between the outer box and the inner box;

a step of preparing other flexible wires, wherein a component with other flexible wires is arranged;

a connection portion arrangement step of arranging connection portions of the cord and the other cords in the first recess;

and a drawing step of drawing the cord and/or the other cord from a third recess different from the first recess.

Drawings

Fig. 1 is a front view of a refrigerator of a first embodiment.

Fig. 2A is a front view of a state in which a pipeline is installed in an inner case of the refrigerator of the first embodiment.

Fig. 2B is a cross-sectional view of II-II of fig. 2A.

Fig. 3 is an I-I cross-sectional view of fig. 1.

Fig. 4 is a front view showing a flow of cold air in the case.

Fig. 5 is a front view showing the flow of cool air inside the back surface of the cabinet.

Fig. 6 is an enlarged view of a main part of the section III-III of fig. 4.

Fig. 7 is a sectional view of a second evaporator chamber provided with a second evaporator of a lower portion of the refrigerator as viewed from a front surface side.

Fig. 8 is a cross-sectional view of IV-IV of fig. 7.

Fig. 9 is a cross-sectional view of VIII-VIII of fig. 1.

Fig. 10 is a view in which the housing case, the power supply cord, the cooling chamber temperature sensor cord, and the defrost heater cord are omitted from fig. 7.

Fig. 11A is a perspective view of the storage case as viewed from above obliquely to the left.

Fig. 11B is a perspective view from above obliquely to the left in a state in which the housing cover of the housing case is opened.

Fig. 11C is a V-direction view of fig. 11B.

Fig. 11D is a VI-directional view of fig. 11B.

Fig. 12 is a perspective view showing the periphery of a connector connecting the cooling chamber temperature sensor cord and the defrosting heater cord.

Fig. 13A is a diagram showing a process in which the connectors of the cooling chamber temperature sensor cord and the defrosting heater cord are fitted to the connector of the power supply cord and stored in the storage case 50.

Fig. 13B is a diagram showing a process in which the connectors of the cooling chamber temperature sensor cord and the defrosting heater cord are fitted to the connector of the power supply cord and stored in the storage case 50.

Fig. 13C is a diagram showing a process in which the connectors of the cooling chamber temperature sensor cord and the defrosting heater cord are fitted to the connector of the power supply cord and stored in the storage case 50.

Fig. 13D is a diagram showing a process in which the connectors of the cooling chamber temperature sensor cord and the defrosting heater cord are fitted to the connector of the power supply cord and stored in the storage case 50. VI direction view of fig. 13B.

Fig. 14 is a perspective view showing a process of placing the connector, the power supply cord, the cooling chamber temperature sensor cord, and the defrosting heater cord in the storage case and disposing the storage case in the first recess of the inner box.

Fig. 15 is a perspective view showing a process of placing the connector, the power supply cord, the cooling chamber temperature sensor cord, and the defrosting heater cord in the storage case and disposing the storage case in the first recess of the inner box.

Fig. 16 is a view of the heat insulation box of the refrigerator according to embodiment 2 as seen from the front surface side.

Fig. 17 is a cross-sectional view VII-VII of fig. 16.

Detailed Description

Hereinafter, embodiments for carrying out the present invention will be described. However, the embodiments are not limited to the following, and may be arbitrarily modified and implemented 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 3.

First embodiment

Fig. 1 shows a front view of a refrigerator 1 of a first embodiment. In the following, a 6-door refrigerator 1 will be described as an example, but the invention is not limited to 6 doors.

Fig. 2A is a front view showing a state in which a pipeline 8d is attached to an inner case 10B of the refrigerator 1 according to the first embodiment, and fig. 2B is a section II-II of fig. 2A.

The refrigerator 1 of the first embodiment includes, in order from above, a refrigerating chamber 2, an ice making chamber 3, and a freezing chamber 4 (first freezing chamber), a first switching chamber 5, and a second switching chamber 6. The first switching chamber 5 may also be a freezing chamber (second freezing chamber). The inner volume of the freezing chamber 4 may be smaller than the inner volume of the first switching chamber 5.

The first switching chamber 5 switches the temperature zone from a refrigerating temperature zone (e.g., 1 ℃ to 6 ℃) to a long-term freezing preservation temperature zone (e.g., about-20 ℃ to-15 ℃ and preferably-18 ℃ or less). The second switching chamber 6 similarly switches the temperature zone from the refrigeration temperature zone to the long-term cryopreservation temperature zone. In the present specification, the freezing storage temperature range (for example, -10 ℃ to-14 ℃, preferably about-12 ℃) is included as a temperature range higher than the long-term freezing storage temperature range, and the upper limit temperature of the freezing storage temperature range may be set to-6 ℃ because the food may not be completely frozen.

The refrigerating chamber 2 is set to a refrigerating temperature zone (for example, 6 ℃), and the ice making chamber 3 and the freezing chamber 4 are set to freezing temperature zones.

The refrigerator 1 includes a heat-insulating box 10 and doors (2 a, 2b, 3a, 4a, 5a, 6 a) for opening and closing openings of the heat-insulating box 10.

The refrigerator 1 has, on the front surface of the heat insulating box 10: refrigerating chamber doors 2a, 2b for opening and closing the refrigerating chamber 2; an ice making chamber door 3a that opens and closes the ice making chamber 3; a freezing chamber door 4a for opening and closing the freezing chamber 4; a first switching chamber door 5a for opening and closing the first switching chamber 5; and a second switching chamber door 6a that opens and closes the second switching chamber 6.

The refrigerating chamber doors 2a and 2b are formed to be split. The ice making compartment door 3a, the freezing compartment door 4a, the first switching compartment door 5a, and the second switching compartment door 6a are configured to be able to be drawn out in the near-front direction. The refrigerating compartment doors 2a and 2b, the ice making compartment door 3a, the freezing compartment door 4a, the first switching compartment door 5a, and the second switching compartment door 6a are heat insulating doors that insulate the inside and outside spaces of the cabinet. Further, an operation portion 26 for performing operations such as setting the temperature in the tank is provided on the tank outer surface of the refrigerating chamber door 2 a.

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

A vacuum heat insulating material 25g (see fig. 3) is placed in the heat insulating partition wall 29.

The first switching chamber 5 and the second switching chamber 6 are separated by an insulating partition wall 30. A vacuum heat insulating material 25h (see fig. 3) is placed in the heat insulating partition wall 30.

Door hinges (not shown) for fixing the heat insulating box 10 and the doors 2a and 2b are provided on the front side of the top surface box outside of the heat insulating box 10 and on the left and right front edges of the heat insulating partition walls 28. The upper door hinge is covered by a door hinge cover 16.

The refrigerating chamber 2 has a water supply tank 11 for storing water. In addition, an automatic ice making device 12 having an ice making tray 3d is disposed in the ice making chamber 3. The water in the water supply tank 11 is supplied to the ice making tray 3d through a water supply pipe.

In the present embodiment, the refrigerating compartment 2 and the ice making compartment 3 are disposed adjacently with a heat insulating partition wall 28 interposed therebetween. Therefore, the water supply pipe is connected between the water supply tank 11 and the automatic ice making device 12 through the heat-insulating partition wall 28. The water supply tank 11 is mounted on the heat-insulating partition wall 28, and the automatic ice making device 12 is mounted on the lower side surface (ceiling of the ice making chamber 3) of the heat-insulating partition wall 28.

In the first switching chamber 5 and the second switching chamber 6 of the refrigerator 1, either one of the refrigerating temperature (maintained at about 4 ℃ on average) and the long-term freezing temperature (maintained at about-18 ℃ on average in the present embodiment) can be selected.

Fig. 3 shows a sectional view of the I-I of fig. 1.

The heat insulating box 10 is formed by filling a foamed heat insulating material 93 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).

The refrigerator 1 is partitioned between the outside and the inside by a heat-insulating box 10 and doors 2a, 2b, 3a, 4a, 5a, 6a closing the openings of the heat-insulating box 10.

In addition to the foamed heat insulating material, a plurality of vacuum heat insulating materials having lower thermal conductivity (higher heat insulating performance) than the foamed heat insulating material are installed between the outer case 10a and the inner case 10b in the heat insulating case 10, and the heat insulating performance is improved by suppressing the decrease in the inner volume. The refrigerator 1 has a vacuum heat insulating material 25a attached to the back surface of a heat insulating box 10, a vacuum heat insulating material 25b attached to the lower surface (bottom surface), and vacuum heat insulating materials attached to the left and right side surfaces, and is capable of suppressing invasion of heat from outside the box having a higher temperature than the storage room, and improving heat insulating performance. Similarly, in the refrigerator 1, 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, thereby improving the heat insulating performance of the refrigerator 1.

The refrigerating compartment doors 2a, 2b have a plurality of door pockets inside the case. The interior of the refrigerating compartment 2 is partitioned into a plurality of storage spaces by shelves 34a, 34b, 34c, and 34 d. The ice making compartment door 3a, the freezing compartment door 4a, the first switching compartment door 5a, and the second switching compartment door 6a have the ice making compartment container 3b, the freezing compartment container 4b, the first switching compartment container 5b, and the second switching compartment container 6b that are integrally pulled out, respectively.

The back of the refrigerating chamber 2 has a first evaporator chamber 8a to which a first evaporator 14a is attached. The second evaporator chamber 8b (cooler chamber) to which the second evaporator 14b (cooler) is attached is provided substantially at the back of one or both 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 a second fan discharge duct 12e described later by a heat-insulating partition wall 27. The evaporator 14, the evaporator chamber 8 preferably do not reach the back of the ice making chamber 3 and the freezing chamber 4.

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. The heat-insulating partition wall 27 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 polyurethane foam) not shown, and is detachable.

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

A refrigerating chamber temperature sensor 41, a freezing chamber temperature sensor 42, first switching chamber temperature sensors 43a, 43b, and second switching chamber temperature sensors 44a, 44b are provided on the back side in the refrigerator 2, the freezing chamber 4, the first switching chamber 5, and the second switching chamber 6, respectively.

The freezing chamber temperature sensor 42 is used when food is rapidly frozen when the food is placed in the freezing chamber 4. As shown in fig. 3, the freezing chamber temperature sensor 42 is provided at the upper inner side of the freezing chamber 4.

As shown in fig. 3, 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 by these temperature sensors. In addition, an outside air temperature sensor 37 and an outside air humidity sensor 38 are provided inside the door hinge cover 16 of the ceiling portion of the refrigerator 1, and detect the temperature and humidity of outside air (outside air). Further, by providing door sensors (not shown), the open/close states of the doors 2a, 2b, 3a, 4a, 5a, 6a are detected, respectively.

Next, the structure of the air passage in the box will be described.

Fig. 5 is a front view showing the flow of cool air in the rear surface of the cabinet. Fig. 5 is a front view showing a state in which the door, the container, and a heat-insulating partition wall 27 described later in fig. 1 are removed.

An ice making chamber discharge port 120a is provided at the upper portion of the rear surface of the ice making chamber 3. A freezing chamber discharge port 120b is provided at the upper portion of the rear surface of the freezing chamber 4. The ice making compartment outlet 120a and the freezing compartment outlet 120b communicate with the freezing compartment air path 130. The cool air sent from the second fan 9b is branched by the freezing compartment air duct 130 as indicated by a dotted arrow, and is discharged from the ice making compartment outlet 120a and the freezing compartment outlet 120b as indicated by a solid arrow.

The refrigerator 1 has a first switching chamber first baffle 411, a first switching chamber second baffle 412, a second switching chamber first baffle 421, and a second switching chamber second baffle 422 as air blowing blocking means to the first switching chamber 5 and the second switching chamber 6.

Fig. 6 shows an enlarged view of a main part of the section III-III of fig. 4.

The second evaporator 14b is provided in the first switching chamber 5, the second switching chamber 6, and the second evaporator chamber 8b of the cooling chamber substantially on the back of the heat insulating partition wall 30. The second evaporator chamber 8b of the cooling chamber is outlined by a line 8 d.

A second fan 9b is provided above the second evaporator 14 b. The second fan 9b can control the rotation speed to a high speed and a low speed. The air cooled in the ice making chamber 3 and the freezing chamber 4 is returned from the freezing chamber return port 120c shown in fig. 5 to the second evaporator chamber 8b below the second evaporator 14b via the freezing chamber return air passage 120d, and is again subjected to heat exchange with the second evaporator 14 b.

A first switching chamber return port 111c (see fig. 4) is formed in the lower portion of the back surface of the first switching chamber 5. The cooled air cooled in the first switching chamber 5 is discharged from the first switching chamber return port 111c, returned to the second evaporator chamber 8b below the second evaporator 14b through the freezing chamber return air passage 120d, and subjected to heat exchange with the second evaporator 14b again.

As shown in fig. 4, the heat-insulating partition wall 27 shown in fig. 3 is provided with first switching chamber first discharge ports 111a and 111a for discharging cool air into the first switching chamber 5. The first switching chamber first discharge port 111a is located above the center in the height direction in the tank. The first switching chamber first discharge port 111a is formed elongated in the left-right direction and is located further to the left than the widthwise center (on the opposite side in the left-right direction from the first switching chamber return port 111 c).

Further, a first switching chamber second discharge port 111b for discharging cool air into the first switching chamber 5 is formed in the heat insulating partition wall 27. The first switching chamber second discharge port 111b is formed in the left side surface of the heat insulating partition wall 27. Thereby, the cool air discharged from the first switching chamber second discharge port 111b is discharged toward the inner wall surface (left side surface) of the inner case 10 b. Further, a first switching chamber communication path 111d is formed in the heat insulating partition wall 27 to communicate the first switching chamber second discharge port 111b with the first switching chamber second baffle 412.

The heat-insulating partition wall 27 is provided with second switching chamber first discharge ports 112a and 112a for discharging cool air into the second switching chamber 6. The second switching chamber first discharge port 112a is located further on the lower side than the center in the height direction in the tank.

The second switching chamber first discharge port 112a is formed to be elongated in the left-right direction and is located on the left side (the side opposite to the second switching chamber return port 112c in the left-right direction) from the center in the width direction.

A second switching chamber second discharge port 112b for discharging cool air into the second switching chamber 6 is formed in the left side surface of the heat insulating partition wall 27. As shown in fig. 3 and 4, the cool air discharged from the second switching chamber second discharge port 112b is discharged toward the inner wall surface (left side surface) of the inner case 10 b. A second switching chamber communication path 112d is formed in the heat insulating partition wall 27 to communicate the second switching chamber second discharge port 112b with the second switching chamber second baffle 422.

As shown in fig. 6, the second switching chamber 6 has a second switching chamber return port 112c in the upper rear surface. The air flowing in from the second switching chamber return port 112c flows through the second switching chamber return air passage 112e extending downward, reaches the second evaporator chamber inflow port 112f, and flows into the lower side of the second evaporator chamber 8 b.

A second switching chamber return air passage 112e extending downward is provided between the second switching chamber return port 112c and the second evaporator chamber inflow port 112f shown in fig. 6, whereby the low-temperature air in the second evaporator chamber 8b is less likely to flow back into the second switching chamber 6 when the second fan 9b is stopped. This makes it difficult to cause a situation in which the second switching chamber 6 is supercooled, particularly when the second switching chamber 6 is set to the refrigerating temperature. Further, since the air passage extending downward may be provided between the second switching chamber return port 112c and the second evaporator chamber inflow port 112f, the air flowing in from the second switching chamber return port 112c may flow upward and then flow through the air passage extending downward.

< first concave portion 10b1 and second concave portion 10b2 >)

Fig. 7 shows a cross-sectional view of the second evaporator chamber 8b provided with the second evaporator 14b of the lower portion of the refrigerator 1 as viewed from the front surface side. Further, in fig. 7, a state before installation of the line 8d of the second evaporator chamber 8b forming the cooling chamber is shown.

Fig. 8 shows section IV-IV of fig. 7. In fig. 8, only the inner case 10b of the heat insulating case 10 is shown, and the outer case 10a and the foamed heat insulating material 93 shown in fig. 3 are omitted.

FIG. 9 shows a section VIII-VIII of FIG. 1.

A cooling chamber temperature sensor 8b1 is provided above the second evaporator 14b of the cooler shown in fig. 7. A cooling room temperature sensor cord 8b2 is led out from the cooling room temperature sensor 8b1.

A defrosting heater 14h is provided below the second evaporator 14b of the cooler. The defrost heater cord 14h1 is led out from the defrost heater 14h.

Fig. 10 shows a view in which the storage case 50, the power supply cord d1, the cooling chamber temperature sensor cord 8b2, and the defrosting heater cord 14h1 are omitted from fig. 7.

The inner case 10b on the rear side of the second evaporator chamber 8b of the cooling chamber is formed with a first concave portion 10b1 and a second concave portion 10b2 formed by being recessed rearward and a connection concave portion 10b3.

The connection recess 10b3 is formed to be recessed rearward to connect the first recess 10b1 and the second recess 10b2.

The first concave portion 10b1 is formed in a flat rectangular parallelepiped shape having a depth long and shallow in the up-down direction. The first concave portion 10b1 is formed in a wide-shallow shape, that is, the width dimension s22 and the height dimension s21 of the opening of the first concave portion 10b1, which are dimensions orthogonal to the main viewing direction, are longer than the depth dimension s23 (see fig. 9) of the opening, which is a dimension in the main viewing direction. Accordingly, the flexible wires 8b2, 14h1 and the like can be stored so as to be expanded in the width direction and the height direction of the first recess 10b 1.

A first convex portion 10b5 protruding toward the first concave portion 10b1 at the height of the inner case 10b is formed at the lower portion of the first concave portion 10b 1.

The storage case 50, which will be described later, is pressed between the upper edge 10b4 of the first concave portion 10b1 and the first convex portion 10b5.

The second concave portion 10b2 is formed in a flat rectangular parallelepiped shape having a depth long and shallow in the left-right direction.

The second recess 10b2 is provided with a through hole 10h penetrating the inner case 10b in the front-rear direction.

One side of the power supply cord d1 is led out from the through hole 10h to the front side of the inner case 10b from between the inner case 10b and the outer case 10a through the through hole 10h. A connector k2 for connection is connected to one side of the power supply cord d1 (see fig. 13A).

The other side of the power supply cord d1 is connected to the power supply board 39 (see fig. 3) at the rear of the upper part of the refrigerator 1 via the foamed heat insulating material 93 between the inner case 10b and the outer case 10 a.

By providing the through hole 10h outside the first recess 10b1 (see fig. 7), the power supply cord d1 extending from the through hole 10h to the first recess 10b1 can be prevented from being deflected even when the cord is accommodated in the first recess 10b 1. Further, the operator can grasp the power supply cord d1 and the connector thereof by the length from the through hole 10h to the first recess 10b1 and perform the work at a position distant from the first recess 10b 1.

In the present embodiment, the space surrounded by the first concave portion 10b1 and the waterproof tape t1 and the space in the housing case 50 are examples of the housing portion. The first recess 10b1 is provided in the inner tank 10b, the pipeline 8d, or the like, and prevents the passage of water or high humidity air. The waterproof tape t1 is in close contact with the edge of the first concave portion 10b1 to prevent the passage of water and high humidity air, and the material itself of the waterproof tape t1 also prevents the passage of water and high humidity air. The storage case 50 is configured as described later to suppress the passage of water and high humidity air. The present invention is not limited to the tape, and a cover that attains the same function may be used.

In this way, the housing portion includes the connection portion for connecting the connectors k1 and k2 in the space, and has a structure for imparting water resistance or moisture resistance to the external space. In the present embodiment, the housing case 50 is disposed in the space surrounded by the first concave portion 10b1 and the waterproof tape t1, but if the connectors k1, k2 are connected in the space surrounded by the first concave portion 10b1 and the waterproof tape t1, the space surrounded by the first concave portion 10b1 and the waterproof tape t1 is the housing portion. On the other hand, when only the housing case 50 is provided without a space surrounded by the first concave portion 10b1 and the waterproof tape t1, the space in the housing case 50 corresponds to the housing portion.

The distance separating the connection portions of the connection connectors k1 and k2 in the first recess 10b1 from the through hole 10h may be, for example, 5cm or more for forming the recess 10b1 and the through hole 10 h. Further, since it is necessary to draw the power supply cord d1 out of the through hole 10h with a length exceeding these separation distances, it is preferable from the viewpoint of workability that the longer the power supply cord d1 is, for example, the separation distance or the length dimension of the power supply cord d1 drawn out of the through hole 10h can be set to 10cm or more, 15cm or more, 20cm or more, or 30cm or more.

One connector k2 connected to the power supply cord d1 is fitted to the other connector k1 connected to the cooling chamber temperature sensor cord 8b2 and the defrosting heater cord 14h1 (see fig. 12). Thereby, power is supplied to the cooling room temperature sensor 8b1 and the defrosting heater 14 h.

The connectors k1 and k2, the cooling chamber temperature sensor cord 8B2 and the defrosting heater cord 14h1 connected to the connectors k1 and k2, respectively, and a part of the power supply cord d1 are housed in a housing case 50 (see fig. 7 and 8) provided in the first recess 10B1 shown in fig. 2B. The through hole 10h is provided at a position lower than the connectors k1 and k2 of the connection portion housed in the housing case 50. This suppresses moisture from reaching the connectors k1, k2 of the connection parts along the flexible wires 8b2, 14h1, d 1.

As shown in fig. 7, a sealing material r1 for sealing a cord outlet of an elastic material is wound in a roll shape on one side of the cooling chamber temperature sensor cord 8b2 and the defrosting heater cord 14h1 which are led out of the housing case 50 (see fig. 12). The cord outlet sealing material r1 is formed of, for example, soft polyurethane. The sealing material r1 for sealing the cord outlet may be other material as long as it is an elastic material and performs a sealing function.

A translucent waterproof tape t1 is attached to the inner case 10b around the first recess 10b1 above the housing case 50 in the first recess 10b 1.

< storage case 50 >)

Fig. 11A is a perspective view of the housing case 50 from above obliquely to the left, and fig. 11B is a perspective view of the housing case 50 from above obliquely to the left in a state in which the case cover 51 is opened.

Fig. 11C shows a V-direction view of fig. 11B, and fig. 11D shows a VI-direction view of fig. 11B.

The housing case 50 shown in fig. 11A is a case that houses a portion in which the connector k1 connecting the cooling room temperature sensor cord 8b2 and the defrosting heater cord 14h1 and the connector k2 connecting the power supply cord d1 are fitted and connected.

The housing case 50 is formed in a thin flat box shape that fits into the upper edge of the first concave portion 10b1 and the upper edge of the first convex portion 10b 5. The housing case 50 is formed of a resin having elasticity.

The storage case 50 has a case portion 51 and a case cover 52. The width dimension b1 (see fig. 11A) of the housing case 50 is formed to have an inclination in which the front surface 50z side of the housing case 50 is long and the rear surface 50k side of the housing case 50 is short. That is, it is formed to have an inclination that becomes narrower in width as going away from the housing cover 52 on the front surface side.

As shown in fig. 11B, the box portion 51 has an opening 51a in the left side portion. That is, the housing case 50 has an opening 51a in the width direction. In contrast, when the opening 51a is provided on the opening side of the first recess 10b1, the flexible wires are not deep when they enter, and therefore, the flexible wires 8b2, 14h1, and d1 are greatly deflected in the housing case 50, but do not enter from the width direction of the obtainable distance. The case portion 51 has an opening 51a on the side, whereby the flexible wires (8 b2, 14h1, d 1) can be prevented from flying out to the front side of the first recess 10b 1.

The case cover 52 is a cover that closes the opening 51a of the case 51.

The box portion 51 is formed in a box shape of a flat rectangular parallelepiped having an opening 51a at a side portion. The outer surface of the box portion 51 is covered with an aluminum sheet 50a for fire resistance (for combustion prevention).

The case portion 51 has a cord cut portion 51k having a cutout in a lower portion on the opening 51a side, and a cord insertion portion 51c extending downward. As shown in fig. 11C and 11D, a cord hooking portion 51h extending in the thickness direction is formed in the cord insertion portion 51C.

The cord insertion portion 51c is inserted with the power supply cord d1, the cooling chamber temperature sensor cord 8b2, and the defrost heater cord 14h 1.

As shown in fig. 11A and 11B, a pair of claw portions 51t1 and 51t2 are formed in a convex shape on the front surface of the box portion 51.

A vertical positioning rib 51r is formed on the upper surface of the box 51 so as to protrude upward. The height dimension s11 (see fig. 11A) of the housing case 50 including the vertical positioning rib 51r is slightly larger than the height dimension s21 (see fig. 10) of the first protruding portion 10b 5.

Further, the vertical direction positioning rib 51r may be provided at the upper portion of the first recess 10b1 instead of the case portion 51. Alternatively, the vertical positioning rib 51r may be provided at the lower portion of the case portion 51 or at the lower portion of the first concave portion 10b 1.

The vertical positioning rib 51R is formed at a height at which the corner of the storage case 50 does not contact the R corner of the first concave portion 10b1, and is formed with a chamfer 51R1 and an R portion 51R2 at the corners. By forming the vertical positioning rib 51r so as to protrude upward, the assembly position of the housing case 50 to the first concave portion 10b1 can be made constant, and stable fitting can be achieved.

The case cover 52 has a side cover portion 52a and a front cover portion 52b.

The side cover 52a is formed continuously with the case 51, and directly closes the opening 51a of the case 51. A sheet-like sealing material 52s for preventing moisture and water from entering is adhered to the back surface of the side cover portion 52a that directly closes the opening 51a. The sheet-like sealing material 52s is formed of a soft and elastic material. The sealing material 52s is formed of, for example, soft polyurethane. The sealing material 52s may be a material other than soft polyurethane as long as it has elasticity.

By using the sealing material 52s, as shown in fig. 11A, when the case cover 52 is closed, the sealing material 52s is pressed by the side cover portion 52a and the case portion 51 around the opening 51A to be elastically deformed, and the opening 51A of the case portion 51 can be sealed. In this way, when the case cover 52 is closed, penetration of moisture and water from the outside to the inside of the storage case 50 can be suppressed.

As shown in fig. 11A, a left-right direction positioning convex portion 52a1 is formed to protrude laterally outward on the outer surface of the side cover portion 52a. The width dimension s12 (see fig. 11A) of the housing case 50 including the left-right direction positioning convex portion 52a1 is formed slightly larger than the width dimension s22 (see fig. 10) of the first convex portion 10b 5.

Further, the left-right direction positioning convex portion 52a1 may be provided on the left or right side portion of the first concave portion 10b1 instead of the side cover portion 52a. Alternatively, the container may be provided on the side of the case 51.

The front cover portion 52b is continuous with the side cover portion 52a, and is formed in a trapezoid shape with a continuous portion with the side cover portion 52a as a base.

The front cover 52b is hooked on the front surface of the case 51, and has a pair of engagement holes 52b1 in which the pair of claw portions 51t1 and 51t2 on the front surface of the case 51 are engaged.

As shown in fig. 11A, the case cover 52 is closed with respect to the case 51, and the pair of claw portions 51t1, 51t2 on the front surface of the case 51 are engaged with the pair of engagement holes 52b1 of the case cover 52, respectively, whereby the case cover 52 can be fixed to the case 51.

Fig. 12 shows a perspective view showing the surroundings of the connector k1 connecting the cooling chamber temperature sensor cord 8b2 and the defrosting heater cord 14h 1.

A connector k1 is connected to one end of the cooling chamber temperature sensor cord 8b2 and the defrosting heater cord 14h 1.

Then, a sheet-like sealing material r1 for the cord is wound around the cooling chamber temperature sensor cord 8b2 and the defrosting heater cord 14h1, which are spaced apart from the connector k1. The sealing material r1 for the cord is made of a soft and elastic material. The sealing material r1 for the cord is made of, for example, soft polyurethane. The flexible cord sealing material r1 may be made of a material other than soft polyurethane.

Fig. 13A to 13D show a process in which the cooling chamber temperature sensor cord 8b2, the defrosting heater cord 14h1, the connector k1 thereof, and the connector k2 of the power supply cord D1 are fitted and stored in the storage case 50. Further, fig. 13C is a VI-directional view of fig. 13B.

As shown in fig. 13A, the cooling room temperature sensor cord 8b2 is fitted to the connector k1 of the defrosting heater cord 14h1 and the connector k2 of the power supply cord d 1. The connected connectors k1 and k2, the cooling chamber temperature sensor cord 8b2 connected to the connector k1, the defrosting heater cord 14h1, and the power supply cord d1 connected to the connector k2 are housed in the case portion 51 with the case cover 52 opened. The cooling room temperature sensor cord 8b, the defrosting heater cord 14h1, and the power supply cord d1 extending from the connector k2, which extend from the connector k1, are hooked to the cord hooking portion 51h of the housing cover 52 so as not to protrude from the housing case 50.

As shown in fig. 13B and 13C, the cord sealing material r1 is pressed into the periphery of the cord insertion portion 51C of the box portion 51 so that the cord sealing material r1 attached to the cooling chamber temperature sensor cord 8B2 and the defrosting heater cord 14h1 is aligned with the cord insertion portion 51C of the box portion 51, and the other power supply cord d1 is housed under the cord sealing material r1 (see fig. 13B).

Thereafter, as shown in fig. 13D, the case cover 52 is closed with respect to the case 51, the pair of claw portions 51t1, 51t2 of the front surface of the case 51 are engaged with the pair of engagement holes 52b1 of the case cover 52, and the case cover 52 is fixed to the case 51.

Filling of foam insulation 93 and installation of housing 50 >

Next, a process from filling of the foamed heat insulating material 93 shown in fig. 3 to setting the housing case 50 housing the cooling chamber temperature sensor cord 8b2, the defrosting heater cord 14h1 and the connector k1 thereof, and the power supply cord d1 and the connector k2 thereof shown in fig. 7 in the first recess 10b1 of the inner box 10b will be described.

A power supply cord d1 led out from between the inner case 10b and the outer case 10a shown in fig. 10 to the front side of the inner case 10b through the through hole 10h of the inner case 10b is accommodated in the second recess 10b 2.

Then, a foaming jig (pressing jig) is brought into contact with a surface of the inner case 10b on the storage room side (a surface of the inner case 10b shown in fig. 10) and the first concave portion 10b1, and a foam liquid of the foam heat insulating material 93 is injected between the outer case 10a and the inner case 10b, and the foam heat insulating material 93 is filled. When the foamed heat insulating material 93 is filled, the second evaporator 14b of the cooler is not provided, and the cooling chamber temperature sensor 8b1 and the cooling chamber temperature sensor cord 8b2, the defrosting heater 14h, and the defrosting heater cord 14h1 are not provided. In the foaming operation of the foamed heat insulating material 93, the foaming jig is brought into contact with the first concave portion 10b1 of the inner box 10b.

The power supply cord d1 led out from the through hole 10h toward the front side is housed in the second recess 10b2, and the foaming jig is brought into contact with the inner case 10b around the second recess 10b2 to fill the foam heat insulating material 93. Therefore, deformation of the periphery of the first concave portion 10b1 can be suppressed. Therefore, the peripheral portion of the first concave portion 10b1 in the inner case 10b is formed in a flat or substantially flat shape, and the flatness of the inner case 10b in proximity to the first concave portion 10b1 can be ensured. Therefore, as shown in fig. 7, the translucent waterproof tape t1 can be smoothly attached to the inner case 10b by covering the first concave portion 10b 1. The waterproof tape t1 has water repellency or moisture resistance, and preferably has both.

The connection step of the cooling room temperature sensor cord 8b2, the defrosting heater cord 14h1, and the power supply cord d1 is performed after the foaming heat insulating material 93 is filled, so that pressing by the foaming jig can be effectively utilized.

Since the peripheral portion of the first concave portion 10b1 in the inner case 10b is flat or substantially flat, the foaming jig during foaming of the foamed heat insulating material 93 can be appropriately pressed.

In the foaming operation, the first concave portion 10b1 is in contact with the foaming jig, and therefore, the first concave portion 10b1 is formed with high dimensional accuracy. Therefore, the housing case 50 can be press-fitted into and firmly fixed to the inside of the first concave portion 10b 1.

In the present embodiment, the foaming is performed by bringing the foaming jig into contact with the first concave portion 10b1, whereby deformation of the inner box 10b in the range including the first concave portion 10b is suppressed. Therefore, if foaming is performed in a state where the power supply cord d1 is housed in the first recess 10b1, the function of the foaming jig may not be obtained, or the power supply cord d1 may be disconnected. Therefore, the second recess 10b2 is provided in the vicinity of the through hole 10h or in a range including the through hole 10h as a space for accommodating the power supply cord d1 led out from the through hole 10 h.

Further, since the waterproof tape t1 is attached to the opening of the first concave portion 10b1, the opening is blocked. Therefore, the third recess 10b3 is provided so that the power supply cord d1, the cooling room temperature sensor cord 8b2, and the defrosting heater cord 14h1 can be easily removed from the first recess 10b 1. The third concave portion 10b3 communicates with the first concave portion 10b1, and therefore, can be understood as a part of the first concave portion 10b1, but is not covered with the waterproof tape t 1. In particular, if the third recess 10b3 is large, water or highly humid air enters the first recess 10b1, and therefore, it is preferable that the size of the cord passing through the third recess 10b3 is substantially the same, or that the elastic material is wound around the portion of the cord passing through the third recess 10b3, so that the third recess 10b3 is blocked. Therefore, the depth (front-rear dimension) of the third concave portion 10b3 is preferably shallower than the first concave portion 10b 1. The third recess 10b3 may be omitted as long as it can be enlarged between the inner tank 10b and the pipe line 8 b.

In the foaming operation, the power supply cord d1 is housed in the second recess 10b2 of the inner case 10b, and the foaming jig is brought into contact with the inner case 10b around the second recess 10b2, thereby performing the foaming operation. After the foaming operation, the foaming jig is removed from the inner box 10 b.

After the foaming heat insulating material 93 is filled between the inner case 10b and the outer case 10a, as shown in fig. 10, the second evaporator 14b of the cooler, the cooling chamber temperature sensor 8b1, and the defrosting heater 14h are provided. In fig. 10, a power supply cord d1, a cooling chamber temperature sensor cord 8b2, and a defrosting heater cord 14h1 led out to the front side of the inner case 10b through the through hole 10 are shown omitted.

Fig. 14 and 15 are perspective views showing a process in which the connectors k1 and k2 and a part of the power supply cord d1, the cooling chamber temperature sensor cord 8b2, and the defrosting heater cord 14h1 are placed in the housing case 50, and the housing case 50 is provided in the first recess 10b1 of the inner box 10 b.

The cooling room temperature sensor cord 8b2, the connector k1 of the defrosting heater cord 14h1, and the connector k2 of the power supply cord d1 are fitted. As shown in fig. 14, the power supply cord d1, the cooling chamber temperature sensor cord 8B2, and the defrosting heater cord 14h1 are passed through a cord cutout 51k (see fig. 11B) in which the lower part of the box portion 51 of the housing cover 52 of the housing case 50 is opened, and the connectors k1 and k2, the cooling chamber temperature sensor cord 8B2, the defrosting heater cord 14h1, and a part of the power supply cord d1 are housed in the box portion 51.

As shown in fig. 15, the cooling chamber temperature sensor cord 8B2 fitted with the connectors k1 and k2, the reel-shaped cord outlet sealing material r1 attached to the defrosting heater cord 14h1, are attached to the lower portion of the box portion 51 (see fig. 13B and 13C), the pair of claw portions 51t1 and 51t2 of the box portion 51 are engaged with the pair of engagement holes 52B1 of the case cover 52, and the case cover 52 is fixed to the box portion 51, thereby forming the housing case 50 in which the connectors k1 and k2, the power supply cord D1, the cooling chamber temperature sensor cord 8B2, and the defrosting heater cord 14h1 are placed (see fig. 13D).

After that, the housing case 50 is pressed into the first recess 10b1 of the inner case 10b shown in fig. 10. At this time, as shown in fig. 11A, a vertical positioning rib 51r protruding upward is provided at an upper portion of the box portion 51 of the storage case 50, and a lateral positioning convex portion 52a1 protruding laterally is provided at the case cover 52. Therefore, the storage case 50 is positioned in the up-down direction by the up-down direction positioning rib 51r, and is positioned in the left-right direction by the left-right direction positioning convex portion 52a1, pressed into and fixed to a predetermined position inside the first concave portion 10b1. Since the housing case 50 has elasticity, when the case cover 52 is pressed by the left-right direction positioning convex portion 52a1, the case cover 52 and/or the case 51 is crushed. Since the sheet-shaped sealing material 52s is provided between the case cover 52 and the case 51, the sealing material 52s is crushed by elastic deformation, and thus, penetration of water into the housing case 50 can be prevented.

Further, since the side portion of the housing case 50 is opened, the flexible wires d1, 8b2, 14h1 do not flex in the front-rear direction and extend. Further, since a predetermined distance is provided from the open cord cutout 51k to the upper end of the case 51 facing the same, the pressing structure of the cords d1, 8b2, 14h1 is not required. At this time, the elastic sealing material r1 for the cord is wound around the cords d1, 8b2, and the elastic sealing material r1 for the cord is crushed by the housing cover 52 and the case 51 to become cord pressing members (d 1, 8b2, 14h 1). Further, since the housing case 50 has a surface on the first recess 10b1, particularly on the opening side (front side), the flexible wires d1, 8b2, 14h1, and the like can be prevented from coming off the first recess 10b1.

Thereafter, as shown in fig. 7, a translucent waterproof tape t1 is attached so as to cover the opening 10k1 (see fig. 9) of the first recess 10b1 to which the housing case 50 is fixed. Here, the inner case 10b around the first concave portion 10b1 is flat or substantially flat, and therefore the first concave portion 10b1 of the housing case 50 can be reliably sealed and fixed by the waterproof tape t 1.

According to the above configuration, since the through hole 10h from which the power supply cord d1 is drawn is provided outside the first recess 10b1 of the inner case 10b, the length of the power supply cord d1 at the first recess 10b1 may be short. Therefore, the post-wiring treatment is easy. Specifically, when the wired power supply cord d1 is attached to the first recess 10b1, it is easy to store and workability is good.

Further, since the housing case 50 is housed in the first concave portion 10b1 of the inner case 10b which is concave rearward, the volume of the line 8d of the second evaporator chamber 8b forming the cooling chamber is not used, and the cooling air passage is not narrowed. Therefore, the cooling performance can be maintained or improved. Further, the foamed heat insulating material 93 can flow between the first concave portion 10b1 of the inner case 10b recessed rearward and the outer case 10a, and therefore, the filling operation of the foamed heat insulating material 93 is not affected. In addition, the first recess 10b1 of the inner case 10b is independent of the inside of the storage chamber, and thus does not narrow the inside volume of the case.

Implementation 2

Fig. 16 shows a heat insulating box 10A of the refrigerator 1A of embodiment 2 as viewed from the front surface side. Fig. 17 shows a section VII-VII of fig. 16. In fig. 17, the outer box 10a and the foamed heat insulating material 93 are omitted.

Embodiment 2 is configured such that a housing case 50 housing a cooling room temperature sensor cord 8b2, a defrosting heater cord 14h1 and a connector k1 thereof, and a power supply cord d1 and a connector k2 thereof is fixed to a pipeline 8d (see fig. 8) in place of the inner case 10b. Instead of the line 8d, a wall-like structure such as the line 8d may be formed.

The other structure is the same as that of embodiment 1.

As shown in fig. 16, in embodiment 2, a housing recess 8d2 is formed in a front plate 8d1 of a pipeline 8d, and the housing recess 8d2 has a height dimension s31 slightly shorter than a height dimension s11 (fig. 11A) of a housing case 50 and a width dimension s32 slightly shorter than a width dimension s12 of the housing case 50.

The housing case 50 housing the connectors k1 and k2, the power supply cord d1, the cooling chamber temperature sensor cord 8b2, and the defrosting heater cord 14h1 is press-fitted into and fixed to the housing recess 8d2 of the pipeline 8d.

According to embodiment 2, by forming the housing recess 8d2 in the pipeline 8d, the housing case 50 can be fixed to the pipeline 8d. In addition, as a range including embodiments 1 and 2, the storage recess 8d2 may be provided in a first region which is a region from the back surface (preferably the front surface) of the inner box 10b to a wall-shaped member (preferably the front surface) forming the pipeline 8d and the like. In this regard, at least one of the flexible wires d1, 8b2, 14h1 connected to the connectors k1, k2 extends between the outer case 10a and the inner case 10b, and therefore the housing recess is preferably provided in the inner case 10b.

Other embodiments

1. The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments are described in detail for the purpose of easily understanding the present invention, and are not limited to the embodiments having all the described structures.

Description of the reference numerals

1. Refrigerator with a refrigerator body

3. Ice making chamber

3d ice making tray

4. Freezing chamber (first freezing chamber)

5. First switching chamber (second freezing chamber, switching chamber)

8b second evaporator chamber (Cooling chamber)

8b1 Cooling chamber temperature sensor (component)

8b2 Cooling room temperature sensor cord (other cords)

8d pipeline

10. Heat insulation box (second area)

10b inner box

10b1 first recess (recess, different region)

10b2 second recess

10b3 connection recess (third recess)

10h through hole (hole)

10k opening

10k1 opening of first recess (opening of recess)

11. Water supply tank (Water tank)

14h defrosting heater (component)

14h1 defrosting heater soft wire (other soft wires)

22. Water pump

37. Control device

42. Freezing chamber temperature sensor (first freezing chamber temperature sensor)

50. Storage casing (Shell)

51. Case (storage space)

51a opening

51r up-down direction positioning rib (supporting part)

52. Shell cover (cover)

52a1 left-right direction positioning convex part (convex part)

93. Foaming heat insulation material

103. Freezing chamber air door (Ice making and first freezing chamber air door)

410. First switching room air door (second freezing room air door)

d1 Power supply flexible wire (flexible wire)

k1, k2 connector (connection part)

s22 width dimension

s23 depth dimension

t1 waterproof belt (sealing material)

Claims (9)

1. A refrigerator, comprising:

an outer case;

an inner case having an opening at a front surface;

a cord which is led out from the outer case side to the opening side of the inner case through a hole and is mechanically restricted at the outer case side more than the hole;

a connection portion that connects the cord with other cords,

it is characterized in that the method comprises the steps of,

the receiving portion receiving the connection portion is provided in a region different from the hole,

the receiving portion has a housing body and is provided with a plurality of receiving portions,

the aperture is located in a region outside the housing,

the refrigerator has: a recess portion for receiving the housing,

the housing is pressed to the concave portion to be elastically deformed and supported,

the recess is longer in a width dimension in any direction orthogonal to a main viewing direction of an opening of the recess than in a depth dimension in the main viewing direction of the opening of the recess,

the housing has at least:

a face disposed along an opening of the recess;

an opening to a side of the recess.

2. The refrigerator according to claim 1, wherein,

the refrigerator has:

a cover which is openable and closable in an opening of the housing;

and a protruding portion that comes into contact with a side surface of the recessed portion and biases the protruding portion in a direction closing the opening of the housing.

3. The refrigerator according to claim 2, wherein,

the refrigerator has: and a rib provided on one side in a direction orthogonal to a direction in which the opening of the housing is opened and closed, the rib restricting relative movement between the recess and the housing.

4. A refrigerator according to any one of claims 1 to 3, wherein,

the storage part has a concave part and a material which is closely attached to the edge of the concave part and covers part or all of the opening of the concave part and has water resistance or moisture resistance,

the hole is located in a region outside the recess.

5. A refrigerator according to any one of claims 1 to 3, wherein,

the recess is provided in the inner case.

6. The refrigerator according to claim 1, wherein,

the receiving portion is provided in a region not covering the hole, and is provided in a region different from the hole.

7. A refrigerator according to any one of claims 1 to 3, wherein,

the connecting portion is separated from the hole by more than 5cm,

the length of the flexible wire led out from the hole is more than 10 cm.

8. A refrigerator according to any one of claims 1 to 3, wherein,

the hole is provided at a position lower than the connection portion.

9. A refrigerator according to any one of claims 1 to 3, wherein,

the storage section has: a recess provided in the inner case,

a foaming heat insulation material is filled between the outer box and the inner box,

at least a part of the portion of the cord disposed on the outer case side with respect to the hole is mechanically restricted by inserting the foamed heat insulating material,

the other cord extends from a member disposed on the opening side of the inner case with respect to the recess,

the inner case is substantially flat around the recess.