JP2020190362A - refrigerator - Google Patents

Abstract

To provide a refrigerator in which a structure for preventing dew condensation and fire spreading of connectors is realized by a simple configuration having excellent assembly workability.SOLUTION: A refrigerator comprises: electric components 36 and 38 provided inside an inner box 4; a first connector 51 inserted into a through hole 4b provided in the inner box 4, and provided so as to protrude into the inner box 4 from a heat insulation space; a second connector 52 provided on lead wires 39 of the electric components 36 and 38, and connected to the first connector 51; a first case 53 provided around the first connector 51, and comprising an opening part 53a opening into the inner box 4; and a second case 54 closing the opening part 53a of the first case 53 while housing the first connector 51 and the second connector 52.SELECTED DRAWING: Figure 3

Description

Embodiments of the present invention relate to refrigerators.

In a refrigerator, electrical components provided inside the refrigerator, such as a defrost heater and a fan, may be connected to a control board provided outside the refrigerator via a connector arranged inside the refrigerator (for example, the following). Patent Document 1).

Japanese Unexamined Patent Publication No. 7-218120

In such a refrigerator, dew condensation water adheres to the connector to prevent deterioration of the connector terminal, and in the unlikely event that the connector overheats, it prevents the spread of fire to other parts, so the connector is flame-retardant. It may be covered with a bag-shaped member.

However, in order to prevent dew condensation from accumulating inside the bag, it is necessary to cover the connector with the bag-shaped member while fixing the connector so that the lead wire extending from the connector is pulled out from the lower side of the bag-shaped member. It may be difficult to work if there is a connector in the narrow space on the back side of the.

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a refrigerator capable of realizing a structure for preventing dew condensation and fire spread of a connector with a simple configuration excellent in assembly workability. To do.

The refrigerator according to the embodiment of the present invention includes an outer box, an inner box provided inside the outer box to form a heat insulating space between the outer box, and a heat insulating material provided in the heat insulating space. A heat insulating box body, an electric component provided inside the inner box, and a first connector provided so as to be inserted into a through hole provided in the inner box and project from the heat insulating space to the inside of the inner box. A second connector provided on the lead wire of the electric component and connected to the first connector, and a first case provided around the first connector and having an opening opening to the inside of the inner box. It includes the first connector and a second case that closes the opening of the first case while accommodating the second connector.

A vertical sectional view showing a schematic configuration of a refrigerator according to an embodiment of the present invention. Front view of the freezing space with the door, partition plate and EVA cover removed Sectional view of the connection AA sectional view of FIG. Sectional drawing which shows the assembly method of the connection part Sectional drawing which shows the assembly method of the connection part Sectional drawing of connection part in refrigerator of modification 1 of this invention Front view of the freezing space in the refrigerator of Modification 2 of the present invention with the door, partition plate and EVA cover removed.

Hereinafter, the refrigerator 1 according to the embodiment of the present invention will be described with reference to the drawings.

(1) Configuration of Refrigerator 1 As shown in FIGS. 1 and 2, the refrigerator 1 includes a refrigerator main body 2 formed of a heat insulating box body that opens to the front. The refrigerator main body 2 includes an outer box 3 made of steel plate, an inner box 4 provided inside the outer box 3, and a heat insulating material 5 provided in a heat insulating space formed between the outer box 3 and the inner box 4. It is configured to have.

The outer box 3 constituting the outer shell of the refrigerator main body 2 has a box shape open to the front surface having a left side surface, a right side surface, a top surface, a bottom surface, and a back surface. The inner box 4 is formed by molding a synthetic resin material by a vacuum forming machine, and the left side surface, the right side surface, the top surface, the bottom surface and the back surface facing the left side surface, the right side surface, the top surface, the bottom surface and the back surface of the outer box 3, respectively. It has a box shape with an opening on the front.

On the back surface of the inner box 4, a partition portion 4a forming a heat insulating partition wall 12, which will be described later, protrudes toward the front opening of the inner box 4. The partition portion 4a opens on the left side surface, the right side surface, and the back surface of the inner box 4, and communicates with the heat insulating space formed between the outer box 3 and the inner box 4 through the opening.

In the heat insulating space formed between the outer box 3 and the inner box 4, a foam heat insulating material such as urethane foam and a heat insulating material 5 such as a vacuum heat insulating panel are provided. A heat insulating material 5 such as a foamed heat insulating material is also provided inside the partition portion 4a forming the heat insulating partition wall 12.

A plurality of storage chambers are provided inside the inner box 4. Specifically, a refrigerating room 6 and a vegetable room 7 are provided in this order from the top, an ice making room and a first freezing room 9 are provided side by side below the refrigerating room 6, and a second freezing room 10 is provided below these. ing.

Both the refrigerating chamber 6 and the vegetable compartment 7 are storage chambers that are cooled to a refrigerating temperature range (for example, 1 to 4 ° C.), and are partitioned above and below by a partition plate 11 made of synthetic resin. ..

The lower part of the vegetable compartment 7 is partitioned by a heat insulating partition wall 12 provided with a heat insulating material 5 inside, and a freezing space to be cooled in a freezing temperature zone (for example, −10 to −20 ° C.) is formed. This freezing space is divided into upper and lower parts by a partition plate 13, and the space above the freezing space is further divided into left and right by a partition plate (not shown) to provide an ice making chamber and a first freezing chamber 9, and a second freezing chamber is provided below the partition plate 13. A room 10 is provided.

At the rear of the refrigerating chamber 6 and the vegetable compartment 7, a refrigerating cooler chamber 22 partitioned by the back of the EVA cover 20 and the inner box 4 and a duct 23 connecting the refrigerating cooler chamber 22 and the refrigerating chamber are provided. ing. A refrigerating cooler 24, a refrigerating fan 26, and the like are housed in the refrigerating cooler room 22.

At the rear of the ice making chamber, the first freezing chamber 9 and the second freezing chamber 10, there are a freezing cooler chamber 32 partitioned front and back by an EVA cover 30 and the back surface of the inner box 4, an ice making chamber, a first freezing chamber 9, and an ice making chamber. A duct 33 connecting the second freezing chamber 10 and the freezing cooler chamber 32 is formed. The freezing cooler room 32 houses a freezing cooler 34, a freezing fan 36, a defrost heater 38, a drain gutter 37, and the like.

The refrigerating cooler 24 and the refrigerating cooler 34 form a refrigerating cycle together with the compressor 42 and the condenser (not shown) housed in the machine room 40. In the refrigeration cycle, the refrigerant discharged from the compressor 42 is supplied to one of the refrigerating cooler 24 and the refrigerating cooler 34 by a switching valve (not shown), so that the refrigerating cooler 24 and the refrigerating cooler 34 are cooled to a predetermined temperature. Will be done.

The refrigerating cooler 24 cools the air in the refrigerating cooler chamber 22 to generate, for example, cold air at −10 to −20 ° C. The cold air generated in the refrigerating cooler chamber 22 is supplied to the refrigerating chamber 6 and the vegetable compartment 7 by the rotation of the refrigerating fan 26, whereby the temperature of the refrigerating chamber 6 and the vegetable chamber 7 is provided in the refrigerating chamber 6. It is cooled so that the detection temperature of the sensor 14 becomes a predetermined temperature.

The freezing cooler 34 cools the air in the freezing cooler chamber 32 to generate, for example, cold air at −20 to −30 ° C. The generated cold air is supplied to the ice making chamber, the first freezing chamber 9 and the second freezing chamber 10 through a duct by the rotation of the freezing fan 36, whereby the ice chamber, the first freezing chamber 9 and the second freezing chamber 10 are supplied. , The temperature sensor 15 provided in the second freezing chamber 10 is cooled so that the detection temperature becomes a predetermined temperature.

A defrost heater 38 and a drain gutter 37 are provided below the freezing cooler 34, and by energizing the defrosting heater 38 at a predetermined timing, the freezing cooler 34 is heated to melt the attached frost. Remove. At this time, the melted defrost water is discharged from the drain gutter 37 to the evaporating dish provided in the machine room 40.

The temperature sensor 15, the refrigerating fan 36, and the defrost heater 38 are electrical components provided inside the inner box 4. These electric components 15, 36, 38 are leads extending from the control board 43 provided on the outside of the refrigerator main body 2 through the heat insulating space of the inner box 4 at the connection portion 50 provided in the refrigerating cooler chamber 32. It is connected to the line 44, and a drive power supply and a control signal are transmitted from the control board 43.

(2) Configuration of Connection Unit 50 As shown in FIGS. 2 to 4, the connection unit 50 is connected to the first connector 51 and the first case 53 fixed inside the inner box 4 and the first connector 51. A second connector 52 and a second case 54 that covers the first connector 51 and the second connector 52 together with the first case 53 are provided.

The connection portion 50 is provided, for example, on the lower surface of the heat insulating partition wall 12 in the vicinity of the freezing cooler 34, at a position closer to one side in the refrigerator width direction (in the present embodiment, the left side when the refrigerator is viewed from the front). ing.

The first connector 51 is a female connector provided at the tip of the lead wire 44 connected to the control board 43, so that the insertion port into which the second connector 52 is inserted protrudes from the inner box 4 to the inside of the refrigerator. It is inserted into a through hole 4b provided in the partition portion 4a of the inner box 4 constituting the lower surface of the heat insulating partition wall 12.

The first connector 51 includes a substantially rectangular parallelepiped housing 51a and terminals (not shown) electrically connected to the lead wire 44.

The housing 51a includes a panel lock structure provided on opposite side surfaces. As shown in FIG. 3, in the panel lock structure, the side from which the lead wire 44 is pulled out from the tip of the housing 51a (hereinafter, the side from which the lead wire 44 is pulled out from the housing 51a is referred to as the proximal end side, and the end portion on the proximal end side. A pair of arm portions 51b extending in a direction away from the housing 51a toward the base end portion and the base end portion), and a chamber inner contact portion 51c provided at the base end portion of the arm portion 51b. A heat insulating side contact portion 51d protruding from the side surface of the housing 51a is provided.

The arm portion 51b is provided so as to be elastically deformable in a direction in which the internal contact portion 51c is close to and separated from the side surface of the housing 51a. When the arm portions 51b are not subjected to external force, the distance between the internal contact portions 51c provided in the pair of arm portions 51b is larger than the diameter of the through hole 4b of the inner box 4, but is close to the side surface of the housing 51a. When deformed so as to do so, the housing 51a and the internal contact portion 51c can be inserted into the through hole 4b of the inner box 4.

The internal contact portion 51c has an inclined surface 51f that is inclined so as to approach the housing 51a toward the base end side.

The heat insulating side contact portion 51d protrudes from the opposite side surface of the housing 51a, and the distance between the tips of the heat insulating side contact portion 51d is larger than the diameter of the through hole 4b of the inner box 4. Further, the heat insulating side contact portion 51d is provided at a position away from the refrigerator inner contact portion 51c so that the distance to the base end of the refrigerator inner contact portion 51c is equal to the thickness of the partition portion 4a of the inner box 4. Has been done.

Such a first connector 51 is inserted into the through hole 4b from the heat insulating space side of the inner box 4 while narrowing the distance between the pair of arm portions 51b. As a result, as shown in FIG. 3, the base end portion (tip portion) of the internal contact portion 51c abuts on the inside of the peripheral edge of the through hole 4b, and the heat insulating side abutting portion 51d abuts on the peripheral edge of the through hole 4b. The inner box 4 is sandwiched between the inner box contact portion 51c and the heat insulating side contact portion 51d in contact with the heat insulating space side of the portion, and the first connector 51 is fixed to the inner box 4.

The second connector 52 is a male-side connector provided at the tip of the lead wire 39 in which the lead wires of electric parts such as the temperature sensor 15, the refrigeration fan 36, and the defrost heater 38 are integrally bundled. It is composed of a rectangular parallelepiped housing 52a and terminals (not shown).

As shown in FIG. 4, a locking claw 52b is provided on the side surface of the housing 52a. When the second connector 52 is inserted all the way into the first connector 51, the locking claw 52b engages with the engaging projection 51e provided on the side surface of the housing 51a of the first connector 51, so that the second connector 52 Prevent it from coming off.

The first case 53 is made of a flame-retardant plastic box-shaped body having an opening 53a at the bottom, and is provided with a mounting hole 53b on the bottom surface through which a first connector 51 protruding from the inner box 4 to the inside of the refrigerator is inserted. There is. The mounting hole 53b is formed of a stepped hole having a larger diameter inside the first case 53 (lower side in FIG. 3) than on the outside (upper side in FIG. 3) of the first case 53. The diameter of the mounting hole 53b is smaller than the distance between the inner side contact portions 51c when the arm part 51b is not receiving an external force, and by narrowing the distance between the pair of arm parts 51b, the housing 51a and the arm part 51b and the inner part of the refrigerator are contacted. The contact portion 51c is inserted into the mounting hole 53b.

A flange portion 53c extending outward is provided on the peripheral edge of the opening 53a of the first case 53 over the entire circumference of the peripheral edge.

A first engaging frame 53d is provided on one side of the flange portion 53c provided on the opposite side surface of the first case 53, and a claw portion 53e is provided on the other side. The first engaging frame 53d projects outward from the opening 53a along the flange portion 53c, and the fitting hole 53f into which the protruding piece 54d of the second case 54 is inserted (see FIGS. 5 and 6). ) Is provided.

The claw portion 53e projects outward from the opening 53a along the flange portion 53c, and the claw portion 53e of the opening 53a extends from the bottom surface side of the first case 53 toward the opening 53a side (as it goes downward in FIG. 4). There is an inward slope.

In such a first case 53, the arm portion 51b and the internal contact portion 51c are inserted into the mounting holes 53b provided on the bottom surface of the first case 53 while narrowing the distance between the pair of arm portions 51b. The inclined surface 51f of the inner contact portion 51c abuts on the inner peripheral surface of the mounting hole 53b, and the peripheral edge portion of the mounting hole 53b (inner peripheral surface of the mounting hole 53b) is sandwiched between the inclined surface 51f and the inner box 4. To. As a result, the first case 53 is fixed around the first connector 51 while the opening 53a of the first case 53 is directed downward.

The second case 54 is made of a flame-retardant plastic box-shaped body having an opening 54a above, and closes the opening 53a of the first case 53 so as to be openable and closable. A lead insertion hole 54b for inserting a lead wire 39 connected to the second connector 52 is provided at the center of the bottom surface of the second case 54. A fixing portion 54h having appropriate elasticity and water permeability such as soft tape is provided between the lead insertion hole 54b and the lead wire 39. The fixing portion 54h fixes the lead wire 39 to the second case 54 at the position of the lead insertion hole 54b while discharging the water generated in the second case 54 to the outside.

A flange portion 54c extending outward is provided on the peripheral edge of the opening 54a of the second case 54 over the entire circumference of the peripheral edge. The flange portion 54c is provided with a gasket 55 such as a rubber sheet on the surface (upper surface of FIG. 3) facing the flange portion 53c of the first case 53.

One of the flange portions 54c provided on the opposite side surfaces of the second case 54 is provided with a protruding piece 54d to be inserted into the fitting hole 53f of the first case 53, and the other is a claw portion of the first case 53. A second engaging frame 54e that engages with the 53e is provided.

The projecting piece 54d projects outward from the opening 54a along the flange portion 54c, and an engaging projection 54f that engages with the first engaging frame 53d of the first case 53 is provided at the tip thereof. The second engaging frame 54e projects in a direction substantially perpendicular to the flange portion 54c, and an engaging hole 54g into which the claw portion 53e of the first case 53 is inserted is provided inside the second engaging frame 54e.

In the second case 54, the engaging projection 54f of the protruding piece 54d engages with the first engaging frame 53d of the first case 53, and the claw portion 53e of the first case 53 engages with the second engaging frame 54e. It fits. As a result, the flange portion 53c of the first case 53 and the flange portion 54c of the second case 54 come into contact with each other with the gasket 55 interposed therebetween, and the first connector 51 and the second connector 52 are housed in the second case. The case 54 closes the opening 53a of the first case 53.

(3) Assembling Method of Connection Unit 50 Next, an assembling method of the connecting unit 50 will be described.

First, the first connector 51 provided at the tip of the lead wire 44 is inserted into the through hole 4b of the inner box 4 to fix the first connector 51 to the inner box 4. By assembling the inner box 4 to which the first connector 51 is fixed to the outer box 3 and providing the heat insulating material 5 in the heat insulating space, the arm portion 51b and the refrigerator inner contact portion 51c of the first connector 51 are in the refrigerator / cooler chamber 32. A refrigerator main body 2 that projects downward from the ceiling surface is produced.

Next, the first case 53 is moved upward while the bottom surface of the first case 53 is directed upward, and the arm portion 51b and the internal contact portion 51c of the first connector 51 are inserted into the mounting hole 53b. The first case 53 is fixed to the inner box 4 around the 1 connector 51. At that time, the first case 53 is fixed around the first connector 51 so that the claw portion 53e is located on the front side of the refrigerator and the protruding piece 54d is located on the back side of the refrigerator. Since the arm portion 51b extends in a direction away from the housing 51a toward the base end side of the housing 51a, when the first case 53 is moved upward, the distance between the pair of arm portions 51b is narrowed and the mounting hole 53b is filled with the arm portion 51b. The arm portion 51b and the housing inner contact portion 51c can be easily inserted.

Next, a lead wire 39 in which the lead wires of the electric components provided inside the inner box 4 are integrally bundled is inserted into the lead insertion hole 54b from the outside of the second case 54, and then the lead wire 39 is connected to the end of the lead wire 39. 2 Attach the connector 52.

Next, as shown in FIG. 5, the second connector 52 is connected to the first connector 51 protruding from the inner box 4. Then, after providing the gasket 55 on the upper surface of the flange portion 54c, as shown in FIG. 6, the protruding piece 54d of the second case 54 is inserted into the fitting hole 53f of the first case 53 from below to perform the first engagement. The engaging projection 54f is engaged with the frame 53d. Then, the second case 54 is rotated around the first engaging frame 53d as a rotation axis so that the second engaging frame 54e of the second case 54 moves upward, and the first case 53 is inserted into the engaging hole 54g. The claw portion 53e is inserted into the second engaging frame 54e to engage the claw portion 53e. As a result, the connection portion 50 in which the first connector 51 and the second connector 52 are housed in the internal space partitioned by the first case 53 and the second case 54 can be attached to the inner box 4.

(4) Effect In the refrigerator 1 of the present embodiment, the first connector 51 and the second connector 52 can be stored in the space closed by the first case 53 and the second case 54. Therefore, it is possible to prevent cold air from directly hitting the first connector 51 and the second connector 52 to prevent dew condensation, and to prevent the spread of fire to other parts when the first connector 51 and the second connector 52 generate abnormal heat. be able to.

In the present embodiment, since the first connector 51 is fixed to the inner box 4, the connection portion between the first connector 51 and the second connector 52 moves during transportation of the refrigerator or the like, and a freezing cooler provided around the connector 51. There is no contact with 34 or the like.

In the present embodiment, since the lead insertion hole 54b is provided on the bottom surface of the second case 54, even if water (condensation water) is generated inside the first case 53 and the second case 54, the water is led. It is possible to drain water from the insertion hole 54b to the outside.

In the present embodiment, in order to hold the first case 53 between the internal contact portion 51c of the first connector 51 and the inner box 4, the panel lock structure of the first connector 51 fixed to the inner box 4 is used. The first case 53 and the second case 54 that cover the first connector 51 and the second connector 52 can be fixed to the inner box 4 by a simple configuration.

In the present embodiment, the lead wire 39 inserted into the lead insertion hole 54b of the second case 54 is fixed to the second case 54 by the fixing portion 54h, so that even if tension acts on the lead wire 39, the lead wire 39 is fixed. The force is less likely to act on the connecting portion between the lead wire 39 and the second connector 52, and the connection portion 50 is less likely to be disconnected.

In the present embodiment, the first case 53 is fixed around the first connector 51 so that the claw portion 53e is located on the front side of the refrigerator and the protruding piece 54d is located on the back side of the refrigerator. A rotating shaft that rotates the second case 54 with respect to 53 can be arranged on the back side of the refrigerator, and the connecting portion 50 can be easily assembled.

(5) Change example 1
Modification 1 of the above-described embodiment will be described mainly with reference to FIG. 7, focusing on a portion different from the above-described embodiment. The same components as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In this modified example, the second case 54 is integrally connected to the first case 53 via a self-hinge portion 156 provided thinner than the flange portions 54c and 53c. As a result, the second case 54 rotates around the self-hinge portion 156 to open and close the opening 53a of the first case 53.

In the refrigerator of such a modified example, the first case 53 and the second case 54 can be made into one part, the assembly workability can be improved, and the cost can be reduced.

(6) Change example 2
The second modification of the above-described embodiment will be described mainly with reference to FIG. 8, focusing on parts different from the above-described embodiment. The same components as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In the above embodiment, the case where the lead insertion hole 54b through which the lead wire 39 is inserted is provided in the central portion of the bottom surface of the second case 54 has been described. However, in this modified example, the lead insertion hole 254b is the refrigerator of the second case 54. It is provided outside the width direction of the refrigerator from the central portion C in the width direction.

That is, the connection portion 50 is provided at a position closer to one side in the refrigerator width direction (in FIG. 8, the left side when the refrigerator is viewed from the front), and the lead insertion hole 254b is the refrigerator width from the central portion C of the second case 54. It is provided on one side of the direction.

In such a modification, since the lead wire 39 can be pulled out from the connection portion 50 to the outside in the refrigerator width direction (that is, the side wall side of the refrigerator body 2), the lead wire 39 is inside a refrigerator such as a freezer cooler 34 or the like. It becomes difficult to interfere with the equipment arranged in the above, and the wiring of the lead wire 39 becomes easy.

In this modified example, as shown in FIG. 8, the lead insertion hole 54b is provided on the bottom surface of the second case 54, but it may be provided on the side surface of the second case 54.

(7) Other Modification Examples In the above embodiment, the connection portion 50 is provided on the lower surface of the heat insulating partition wall 12 constituting the ceiling surface of the freezing cooler chamber 32, but the inner box 4 such as the back surface and the side surface of the inner box 4 is provided. The connection portion 50 may be provided at any place inside the.

Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Refrigerator, 2 ... Refrigerator body, 3 ... Outer box, 4 ... Inner box, 4a ... Partition, 4b ... Through hole, 5 ... Insulation material, 6 ... Refrigerator room, 7 ... Vegetable room, 9 ... 1st freezer room 10 ... 2nd freezer chamber, 12 ... Insulation partition wall, 30 ... EVA cover, 32 ... Refrigerator cooler room, 33 ... Duct, 34 ... Refrigerator cooler, 36 ... Refrigerator fan, 37 ... Drainage trough, 38 ... Defrost heater, 39 ... Lead wire, 44 ... Lead wire, 50 ... Connection part, 51 ... First connector, 51a ... Housing, 51b ... Arm part, 51c ... Refrigerator inside contact part, 51d ... Insulation side contact part, 51e ... Engagement Protrusion, 51f ... Inclined surface, 52 ... Second connector, 52a ... Housing, 52b ... Engagement claw, 53 ... First case, 53a ... Opening, 53b ... Mounting hole, 53c ... Flange, 53d ... First engagement Frame, 53e ... Claw part, 53f ... Fitting hole, 54 ... Second case, 54a ... Opening, 54b ... Lead insertion hole, 54c ... Flange part, 54d ... Projective piece, 54e ... Second engaging frame, 54f ... engaging protrusion, 54g ... engaging hole, 54h ... fixed part, 55 ... gasket

Claims (5)

A heat insulating box body including an outer box, an inner box provided inside the outer box, and a heat insulating material provided in a heat insulating space formed between the outer box and the inner box.
The electric parts provided inside the inner box and
A first connector inserted into a through hole provided in the inner box and provided so as to project from the heat insulating space into the inner box.
A second connector provided on the lead wire of the electric component and connected to the first connector,
A first case provided around the first connector and having an opening that opens into the inner box.
A refrigerator including a second case that closes the opening of the first case while accommodating the first connector and the second connector. The first connector includes a heat insulating side contacting portion that contacts the heat insulating space side of the inner box, and a storage inner contacting portion that contacts the inside of the inner box.
The first case includes a mounting hole through which the inside-contact portion of the first connector is inserted, and a peripheral edge portion of the mounting hole is sandwiched between the inner box and the inside-contact portion of the refrigerator. The refrigerator according to claim 1, which is provided around the first connector. The refrigerator according to claim 1 or 2, wherein the second case is connected to the first case by a self-hinge portion so that the opening can be opened and closed. The refrigerator according to any one of claims 1 to 3, wherein the lead wire is fixed to the second case. The first case and the second case are provided at positions closer to one side in the refrigerator width direction of the inner box.
The second case includes a lead insertion hole through which the lead wire is inserted.
The refrigerator according to any one of claims 1 to 4, wherein the lead insertion hole is provided at a position closer to one side of the central portion in the refrigerator width direction of the second case.

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