WO2016121992A1

WO2016121992A1 - Refrigerator

Info

Publication number: WO2016121992A1
Application number: PCT/JP2016/052832
Authority: WO
Inventors: 岡部　裕一
Original assignee: 青島海爾股▲フン▼有限公司; ハイアールアジア株式会社
Priority date: 2015-01-30
Filing date: 2016-01-29
Publication date: 2016-08-04
Also published as: JP2016142439A; CN107735634B; CN107735634A; JP6446726B2

Abstract

A refrigerator (1) wherein a control unit (11) is housed inside a case (52) provided in an outside surface section (2B) of a main body (2). An opening (52A) facing outside the main body (2) from the outside surface section (2B) along the front/rear direction (Y) in the case (52) is blocked from the front/rear direction (Y) by a cover (53). Upper peripheral sections (52B) and (53B), being the upper ends of the case (52) and the cover (53), are inserted from below (Z2) into an insertion groove (62) recessed upwards (Z1) in a closing section (60). As a result, the closing section (60) blocks a boundary section between said upper ends, from above (Z1).

Description

refrigerator

This invention relates to a refrigerator.

The refrigerator disclosed in Patent Document 1 below includes a heat insulating box as a main body, and a storage room for storing food and the like is formed inside the heat insulating box. The interior of the storage room is divided into a plurality of storage rooms such as a refrigerator room, a freezer room, and a vegetable room. The refrigerator includes a compressor and a cooler connected by refrigerant piping. The refrigerant that flows through the refrigerant pipe and circulates between the compressor and the cooler is compressed to a high temperature and high pressure state by the compressor, and then condensed by heat radiation, and the surrounding air is heat-exchanged and evaporated in the cooler. . Thereby, the air around a cooler is cooled and used for cooling food in the storage room. The operation of electrical components such as a compressor is controlled by a controller.

JP 2013-204891 A

Controller is generally housed in a case provided in the refrigerator. In order to prevent failure of the controller, it is preferable that water can be prevented from entering the case portion.

The present invention has been made under such a background, and an object thereof is to provide a refrigerator capable of preventing a control unit electrically connected to an electrical component from being damaged due to water immersion.

The present invention includes a main body in which a storage chamber for storing articles to be stored in a cold state is formed, a control unit that is electrically connected to electrical components in the main body, and an outer surface that extends in the vertical direction in the main body. Provided, having an opening facing the outside of the main body from the outer surface along the crossing direction with respect to the vertical direction, and a case part that houses the control part, and is attached to the case part from the crossing direction. A cover portion that closes the opening portion and an insertion groove that is recessed upward are provided, and the upper end portions of the cover portion and the case portion are inserted into the insertion groove from below so that a boundary portion between the upper end portions is formed. It is a refrigerator characterized by including the obstruction | occlusion part closed from upper direction.

Further, the present invention is characterized in that the closing part includes a grip part provided in the main body and gripped for transporting the refrigerator.

The present invention also includes an outer plate that constitutes an outer shell of the main body, a vacuum heat insulating member that is covered from the outside of the main body by the outer plate, a compressor that compresses the refrigerant, and a cooler that evaporates the refrigerant. A part of the passage is disposed between the outer plate and the vacuum heat insulating member and circulates a refrigerant between the compressor and the cooler, and the outer plate includes the vacuum heat insulating member. A pair of protrusions extending along the flow path while projecting to the side and sandwiching the flow path, and a through hole penetrating the outer plate between the pair of protrusions are provided.

Moreover, the present invention includes an attachment member attached from the vacuum heat insulating member side to the outer plate so as to be interposed between the vacuum heat insulating member and the through hole.

According to the present invention, the control unit that is electrically connected to the electrical components in the main body of the refrigerator is housed in the case portion provided on the outer side surface portion that extends in the vertical direction in the main body. The opening that faces the outside of the main body from the outer surface along the crossing direction with respect to the vertical direction in the case part is closed from the crossing direction by a cover part attached to the case part. The upper end portions of the cover portion and the case portion are inserted from below into the insertion groove recessed upward in the closed portion. As a result, the closing portion closes the boundary portion between the upper end portions from above. For this reason, water drops or the like flowing from above cannot reach the boundary portion. Therefore, it can prevent that the control part in a cover part fails by the water immersion from upper direction. In addition, the upper ends of the cover part and the case part are connected by being inserted into the insertion groove without using a fastening member such as a screw, which is necessary for the connection between the cover part and the case part. It is possible to reduce the number of fastening members.

Further, according to the present invention, since the closing portion also serves as a gripping portion provided in the main body and gripped for transporting the refrigerator, the number of parts can be reduced.

According to the present invention, in the configuration in which a part of the flow path for circulating the refrigerant between the compressor and the cooler is disposed between the outer plate of the main body and the vacuum heat insulating member, the outer plate is provided. The pair of projecting portions extend along the flow path while projecting toward the vacuum heat insulating member and sandwich the flow path. Thereby, positioning of the flow path between the outer plate and the vacuum heat insulating member can be achieved.
Moreover, the excess air between an outer plate and a vacuum heat insulation member can be escaped outside a main body by the through-hole provided in the main body plate. Therefore, it can prevent that an outer plate deform | transforms and an appearance worsens because this air accumulates between an outer plate and a vacuum heat insulation member. And this through-hole is provided in the area | region between a pair of protrusion part in an outer plate, ie, the area | region away from a vacuum heat insulation member rather than a protrusion part. Therefore, it can prevent that a vacuum heat insulation member contacts and damages the burr | flash which may exist in the peripheral part of the through-hole in a main body board.

Further, according to the present invention, the attachment member is attached to the outer plate from the vacuum heat insulating member side and is interposed between the vacuum heat insulating member and the through hole. It can prevent reliably that a vacuum heat insulation member contacts and damages the burr | flash obtained.

FIG. 1 is a front view of a refrigerator according to an embodiment of the present invention. Drawing 2 is a perspective view which looked at the main part of the refrigerator in the state where a door was omitted from the front. FIG. 3 is a perspective view of the refrigerator as viewed from the rear. FIG. 4 is a schematic vertical sectional right side view of the refrigerator. FIG. 5 is a realistic vertical cross-sectional right side view of the refrigerator. FIG. 6 is a block diagram showing an electrical configuration of the refrigerator. FIG. 7 is an exploded perspective view of the refrigerator as viewed from the rear. FIG. 8 is an exploded perspective view of the upper part of the refrigerator as viewed from the rear. FIG. 9 is a rear view of the upper part of the refrigerator after completion. 10 is a cross-sectional view taken along the line XX of FIG. FIG. 11 is an enlarged view of a main part of FIG. FIG. 12 is a rear view of the main part of the refrigerator. 13 is a cross-sectional view taken along arrow XIII-XIII in FIG. FIG. 14 is an enlarged view of a main part of FIG.

Embodiments of the present invention will be specifically described below with reference to the drawings.
FIG. 1 is a front view of a refrigerator 1 according to an embodiment of the present invention.

First, an outline of the refrigerator 1 will be described with reference to the left-right direction X, the front-rear direction Y, and the up-down direction Z in FIG. Of the left and right directions X, the left side is referred to as the left side X1, and the right side is referred to as the right side X2. The front-rear direction Y is a direction orthogonal to the paper surface of FIG. 1, and of the front-rear direction Y, the front side on the front side of the paper surface is referred to as front Y1, and the rear side on the back side of the paper surface is referred to as rear Y2. In the vertical direction Z, the upper part is referred to as an upper part Z1, and the lower part is referred to as a lower part Z2. The left-right direction X and the front-rear direction Y are intersecting directions that intersect the up-down direction Z and are included in the horizontal direction H.

The refrigerator 1 includes a main body 2 and a door 3. FIG. 2 is a perspective view of the main body 2 with the door 3 omitted, as viewed from the front Y1. Referring to FIG. 2, the main body 2 is formed in a box shape elongated in the vertical direction Z and has a depth in the front-rear direction Y. In the main body 2, a plurality of rectangular parallelepiped storage chambers 4 for storing articles such as food to be cooled and stored are formed. These storage chambers 4 include a refrigeration chamber 4A that occupies substantially the upper half of the internal space of the main body 2, an ice making chamber 4B and a variable temperature chamber 4C arranged in the left-right direction X2 below the refrigeration chamber 4A, and A distinction is made between a first freezer compartment 4D located in the lower Z2 of 4C and a second freezer compartment 4E located in the lower Z2 of the first freezer compartment 4D.

The refrigerator compartment 4A stores articles that are stored in a refrigerator. A shelf 5 formed in a plate shape along the horizontal direction H is disposed in the refrigerator compartment 4A. There are three shelves 5, for example, and are arranged in the up-down direction Z at intervals. With these shelves 5, the refrigerator compartment 4 A is partitioned into a plurality of regions arranged in the vertical direction Z. For example, the second shelf 5 from the upper Z1 is divided into a front shelf 5A arranged at the front Y1 and a rear shelf 5B arranged at the rear Y2. The front shelf 5A is formed of a rectangular glass plate that is long in the left-right direction X, and only the two sides before and after the front shelf are covered with resin, but the remaining two sides are exposed by exposing the glass background. The appearance is improved. On the other hand, the rear shelf 5B is a rectangular glass plate that is long in the left-right direction X and is coated with resin on all four sides. By folding the front shelf 5A and moving it to the rear Y2, the front shelf 5A can be stored in the lower portion Y2 of the rear shelf 5B. A box-shaped vegetable storage 6 for storing vegetables and the like is provided below the shelf 5 at the bottom of the refrigerator compartment 4A.

The ice making room 4B is arranged on the left side X1 from the variable temperature room 4C. Ice is made or stored in the ice making chamber 4B. A water supply tank 7 that supplies ice water to the ice making chamber 4B is disposed, for example, at the lower end of the left side X1 of the vegetable storage 6. The variable temperature room 4C can be used as a backup for a refrigerator room or a freezer room by arbitrarily changing the room temperature. Further, in the variable temperature room 4C, the article can be stored in a cold state at an arbitrary temperature between the refrigeration temperature and the freezing temperature. Articles to be stored frozen are stored in the first freezer compartment 4D and the second freezer compartment 4E.

The same number of openings 8 as the storage chambers 4 are formed on the side surface 2A of the front Y1 of the main body 2. Each opening 8 communicates with the corresponding storage chamber 4 from the front Y1, and exposes the corresponding storage chamber 4 from the side surface 2A to the front Y1.

The door 3 is provided for each storage chamber 4 in the side surface portion 2A. A pair of doors 3 for the refrigerator compartment 4A are provided on the left and right so that the doors can be opened. For the ice making room 4B, the variable temperature room 4C, the first freezing room 4D, and the second freezing room 4E, one door 3 is provided. Any door 3 can be pulled out forward Y1 (see FIG. 1). These doors 3 open and close the corresponding storage chambers 4 from the front Y1.

Referring to FIG. 3 when the refrigerator 1 is viewed from the rear Y2, the outer surface 2B of the rear Y2 in the main body 2 extends in the vertical direction Z. A substrate box 10 is provided in a substantially central region in the left-right direction X at the upper end portion of the outer side surface portion 2B. The substrate box 10 is formed in a box shape that is long in the left-right direction X and flat in the front-rear direction Y. The board box 10 houses a control unit 11 that is electrically connected to electrical components (described later) in the main body 2. The control unit 11 is a substrate on which a CPU, a ROM, a RAM, and the like are mounted.

4 and 5 are both right side views of the cross section taken along the line AA of the refrigerator 1, FIG. 4 is a schematic view, and FIG. 5 is a realistic view. Referring to FIG. 4, main body 2 is disposed between outer box 12 constituting the outer shell, a plurality of inner boxes 13 housed in outer box 12, and outer box 12 and inner box 13. And the heat insulating member 14.

The outer box 12 is made of metal and is formed in a box shape that is long in the vertical direction Z. The entire front surface of the outer box 12 is an opening 12A that exposes the inner space of the outer box 12 to the front Y1.

The inner box 13 is formed in a resin box shape, and the entire area of the front surface is an opening 13A that exposes the inner space of the inner box 13 to the front Y1. There are two inner boxes 13 in total, and these inner boxes 13 are located in the refrigerated inner box 15 located in the substantially upper half of the inner space of the outer box 12 and in the substantially lower half of the inner space of the outer box 12. It is distinguished from the refrigerated inner box 16. A refrigerator compartment 4A is formed in the refrigerator compartment 15. The opening 13A of the refrigerated inner box 15 is the opening 8 of the refrigerator compartment 4A. In the freezing inner box 16, an ice making room 4B, a variable temperature room 4C, a first freezing room 4D, and a second freezing room 4E are formed. The opening 13A of the freezer inner box 16 is divided into the respective openings 8 of the ice making room 4B, the variable temperature chamber 4C, the first freezing room 4D, and the second freezing room 4E.

In the freezing inner box 16, a plate-like partition member 17 that is thin in the vertical direction Z along the horizontal direction H and a plate-like partition member 18 that is thin in the left-right direction X and extends in the front-rear and up-down directions are provided. The partition member 17 is disposed between the ice making room 4B and the variable temperature room 4C and the first freezing room 4D in a state of being laid between both side walls in the left-right direction X of the freezing inner box 16. Thereby, the partition member 17 partitions between the ice making chamber 4B and the first freezing chamber 4D adjacent in the vertical direction Z, and between the variable temperature chamber 4C and the first freezing chamber 4D adjacent in the vertical direction Z. Partition (see FIG. 2). The partition member 18 is disposed between the ice making chamber 4B and the variable temperature chamber 4C in a state of being laid between the substantially central portion of the partition member 17 in the left-right direction X and the upper wall 16A of the freezer inner box 16. Thereby, the partition member 18 partitions between the ice making chamber 4B and the variable temperature chamber 4C which adjoin in the left-right direction X (refer FIG. 2). A partition member 19 that partitions the first freezer compartment 4D and the second freezer compartment 4E may be provided in the freezer inner box 16. However, the first freezer compartment 4D and the second freezer compartment 4E are not completely cut off by the partition member 19, and the first freezer compartment 4D and the second freezer compartment 4E are in communication with each other.

The refrigerated inner box 15 and the frozen inner box 16 are arranged adjacent to each other in the vertical direction Z in the outer box 12. The lower wall 15A of the refrigerated inner box 15 is disposed in the upper Z1 with a gap with respect to the upper wall 16A of the frozen inner box 16. Between the front end portions of the lower wall 15A and the upper wall 16A, a plate-like connecting portion 20 extending in the left-right direction X is installed. Thereby, the refrigerated inner box 15 and the frozen inner box 16 are in a state of being connected to each other.

The heat insulating member 14 is made of urethane, for example. When the main body 2 is manufactured, the foamable urethane foams after being injected into the gap between the outer box 12 and the inner box 13 or the gap between the refrigerated inner box 15 and the frozen inner box 16 and is filled in these gaps. Thus, the heat insulating member 14 is obtained. The heat insulating member 14 insulates between the outer box 12 and the inner box 13 and insulates between the refrigerated inner box 15 and the frozen inner box 16. The heat insulating member 14 is arranged in advance in each internal space when the

partition members

17 and 18 are in the state of parts before being incorporated into the main body 2. Thus, the partition member 17 insulates the ice making chamber 4B and the variable temperature chamber 4C from the first freezing chamber 4D, and the partition member 18 insulates the ice making chamber 4B and the variable temperature chamber 4C. In addition, as the heat insulation member 14 in each of the

partition members

17 and 18, a foamed polystyrene molded product can be used instead of foaming urethane. Moreover, the hatching (refer FIG. 5) which shows the cross section of the heat insulation member 14 is abbreviate | omitted in FIG. 4 for convenience of explanation.

The refrigerator 1 generates cold air for cooling the articles in each storage chamber 4 by a vapor compression refrigeration circuit using a refrigerant such as isobutane. The refrigerator 1 includes a compressor 25, a flow path 26, a cooler 27, a condenser 29, a dryer 30 and the like that constitute the refrigeration circuit.

For the compressor 25, a known component is used as a component for compressing the refrigerant. The compressor 25 is disposed at the lower end of the rear Y 2 of the main body 2. The flow path 26 is configured by, for example, a metal pipe, and is a circulation flow path that returns the refrigerant to the compressor 25 again after taking out the refrigerant from the compressor 25. The flow path 26 is disposed so as to go around the main body 2 and the partition member 17 as indicated by a dotted line in FIG. Specifically, the flow path 26 is stretched over the entire region of the heat insulating member 14 of the main body 2 and the partition member 17. The direction in which the refrigerant flows in the flow path 26 is indicated by a dotted arrow.

The cooler 27 is also called an evaporator, and a known component is used for the cooler 27 as a component for evaporating the refrigerant. One cooler 27 is provided for each of the refrigerated inner box 15 and the frozen inner box 16. The cooler 27 of the refrigerated inner box 15 is hereinafter referred to as a first cooler 27A, and the cooler 27 of the refrigerated inner box 16 is hereinafter referred to as a second cooler 27B. The first cooler 27 A and the second cooler 27 B are provided in the middle of the flow path 26. The first cooler 27A is accommodated in, for example, a box-shaped first cooling chamber 31, and the second cooler 27B is accommodated in, for example, a box-shaped second cooling chamber 32. The first cooling chamber 31 is disposed in the refrigerated inner box 15. The first cooling chamber 31 has an outlet 31A and an inlet 31B, and the outlet 31A is provided with a fan 33 that is rotationally driven. The second cooling chamber 32 is disposed in the freezer inner box 16. The second cooling chamber 32 has an outlet 32A and an inlet 32B, and the outlet 32A is provided with a fan 34 that is rotationally driven.

The condenser 29 is a component that condenses the refrigerant, and is provided between the compressor 25 and the cooler 27 in the flow path 26. The dryer 30 is a component that dries the refrigerant, and is provided between the condenser 29 and the cooler 27 in the flow path 26. A part of the flow path 26 between the dryer 30 and the cooler 27 is configured as a capillary tube.

The refrigerant is compressed into a high-temperature and high-pressure gas refrigerant by being compressed by the compressor 25, and then liquefies while dissipating heat when passing through the condenser 29. The liquefied refrigerant is decompressed when passing through the dryer 30 and then through the capillary tube, and then evaporates in the first cooler 27A and the second cooler 27B. Incidentally, the flow path 26 is provided with a branch path 26A that is shortcutted to the second cooler 27B without passing through the first cooler 27A. Therefore, a part of the refrigerant decompressed by the capillary tube goes directly to the second cooler 27B through the branch path 26A as indicated by a dotted arrow A1.

When the refrigerant evaporates in the first cooler 27A, the air around the first cooler 27A in the first cooling chamber 31 is cooled to become cool air. The cold air in the first cooling chamber 31 is pushed out of the first cooling chamber 31 from the outlet 31A by the rotating fan 33 and flows through the refrigerating chamber 4A of the refrigerating inner box 15 as indicated by the solid line arrow. It returns to the 1st cooling chamber 31 from 31B, and is cooled again by the 1st cooler 27A. While the fan 33 is rotating, the cold air circulates between the refrigerating room 4A and the first cooling room 31 to cool the articles in the refrigerating room 4A.

When the refrigerant evaporates in the second cooler 27B, the air around the second cooler 27B in the second cooling chamber 32 is cooled to become cool air. The cold air in the second cooling chamber 32 is pushed out of the second cooling chamber 32 from the outlet 32A by the rotating fan 34, and as shown by the one-dot chain line arrow, in the first freezing chamber 4D of the freezing inner box 16 Then, after flowing through the second freezing chamber 4E, it returns from the inlet 32B into the second cooling chamber 32 and is cooled again by the second cooler 27B. During the rotation of the fan 34, the cold air circulates between the first freezing chamber 4D and the second freezing chamber 4E and the second cooling chamber 32 to cool the articles in the first freezing chamber 4D and the second freezing chamber 4E. To do. Since the flow rate of the cold air in the freezer inner box 16 is set to be larger than the flow rate of the cold air in the refrigerating inner box 15, the articles in the freezer inner box 16 are stored frozen.

Since the ice making room 4B (see FIG. 2) and the first freezing room 4D are always in communication, the cold air in the first freezing room 4D always flows into the ice making room 4B while the fan 34 is rotating. Thereby, the production | generation and preservation | save of ice in the ice making chamber 4B are implement | achieved.

On the other hand, the variable temperature chamber 4C and the first freezer compartment 4D are in communication with each other through a through hole 17A penetrating the rear end of the partition member 17 in the vertical direction Z. The through hole 17A is a circuit called a damper. It is opened and closed by a movable plate-like opening and closing member 35. Therefore, when the opening / closing member 35 closes the through hole 17A in the posture along the horizontal direction H as shown by the solid line, the temperature between the variable temperature chamber 4C and the first freezing room 4D is blocked, so the first freezing room The cold air in 4D does not flow into the temperature changing room 4C. On the other hand, in the state where the opening / closing member 35 is rotated upward Z1 and the through hole 17A is opened as shown by the dotted line, the temperature changing chamber 4C and the first freezer compartment 4D communicate with each other. As shown by the two-dot chain line arrow, the cold air flows through the through-hole 17A and flows into the variable temperature chamber 4C to cool the articles in the variable temperature chamber 4C. When the opening / closing time of the opening / closing member 35 is changed to adjust the opening degree of the through hole 17A, the flow rate of the cold air from the through hole 17A toward the variable temperature chamber 4C is adjusted. Thereby, the room temperature of the variable temperature room 4C can be set arbitrarily.

As described above, the refrigerant evaporated in the first cooler 27A and the second cooler 27B continues to flow through the flow path 26, returns to the compressor 25, and is compressed again by the compressor 25. In other words, the refrigerant repeats compression, heat dissipation, decompression, and evaporation while circulating between the compressor 25 and the cooler 27 by flowing in the flow path 26.

Since the second cooler 27B in the second cooling chamber 32 generates cold air for freezing, frost can be generated on the surface of the second freezer 28. Therefore, a defrost heater 36 is provided in the second cooling chamber 32. When the defrost heater 36 is energized and generates heat, the frost on the surface of the second cooler 27B melts and flows down as water. For example, an evaporating dish 37 opened to the upper side Z 1 is provided at the lower end of the main body 2. The water that has flowed down from the surface of the second cooler 27 B accumulates in the evaporating dish 37 through a water channel 38 (see FIG. 5) that extends from the second cooling chamber 32 to the lower Z 2 and is connected to the evaporating dish 37. The water accumulated in the evaporating dish 37 evaporates due to the refrigerant having become high temperature by the compressor 25 and the heat of the flow path 26. A defrost heater (not shown) having the same function as the defrost heater 36 is also provided in the first cooling chamber 31.

Referring to FIG. 6, which is a block diagram showing an electrical configuration of refrigerator 1, refrigerator 1 includes a fan drive motor 41 and a damper in addition to compressor 25 and defrost heater 36 described above as the above-described electrical components. A switching motor 42 and a temperature sensor 43 are included. The fan drive motor 41 is provided in each of the

fans

33 and 34, and rotates the corresponding fan. The damper switching motor 42 opens and closes the opening / closing member 35. The temperature sensor 43 is provided in each storage chamber 4 and detects the room temperature of the corresponding storage chamber 4. The control unit 11 is electrically connected to these electrical components, controls the operation of the compressor 25, the defrost heater 36, the fan drive motor 41, and the damper switching motor 42, and inputs the detection result of the temperature sensor 43. Or accept.

The above is the outline of the refrigerator 1, and in the following, the configuration of the outer surface 2B of the rear Y2 in the main body 2 of the refrigerator 1 will be described in detail. Referring to FIG. 7, which is an exploded perspective view of refrigerator 1 as viewed from the rear Y2, outer box 12 includes a metal outer plate 51 that constitutes a rear wall thereof. The outer plate 51 is formed in a rectangular plate shape that is thin in the front-rear direction Y and long in the vertical direction Z. A region exposed to the rear Y1 in the outer plate 51 is the outer side surface portion 2B.

With reference to FIG. 8 which is an exploded perspective view of the upper part of the refrigerator 1 as viewed from the rear Y2, as described above, the board box 10 provided at the upper end portion of the outer surface portion 2B is fixed to the outer surface portion 2B. 52 and a cover portion 53 that can be attached to and detached from the case portion 52.

The case portion 52 is formed in a box shape that is long in the left-right direction X and flat in the front-rear direction Y, like the completed substrate box 10. A rectangular opening 52 A that is long in the left-right direction X is formed on the rear side surface of the case portion 52. The opening 52A faces the outside of the main body 2 from the outer surface 2B along the front-rear direction Y, which is a direction intersecting the vertical direction Z, and exposes the internal space of the case 52 to the rear Y2. In this embodiment, the opening 52A faces the rear Y2 along the horizontal direction H. However, the opening 52A may face the rear Y2 along the direction inclined with respect to the horizontal direction H. And the control part 11 is accommodated in the internal space of the case part 52 (refer FIG. 7).

In the rear side surface portion of the case portion 52, a portion bordering the opening 52A from the upper Z1 is referred to as an upper peripheral portion 52B, and a portion bordering the opening 52A from the lower Z2 is referred to as a lower peripheral portion 52C. Each of the upper peripheral edge portion 52B and the lower peripheral edge portion 52C is a plate shape that is thin in the front-rear direction Y and elongated in the left-right direction X, and is formed to project from the opening 52A in a flange shape in the vertical direction Z (FIG. 10 described later). reference). The upper peripheral edge 52 B is the upper end of the case part 52. A plurality (three in this case) of screw holes 54 are formed in the lower peripheral edge portion 52C side by side at substantially equal intervals in the left-right direction X. The screw hole 54 at the left end is located at the left end portion of the lower peripheral edge portion 52C, and the screw hole 54 at the right end is located at the right end portion of the lower peripheral edge portion 52C.

In the rear side surface portion of the case portion 52, a portion bordering the opening 52A from the left X1 is referred to as a left peripheral portion 52D, and a portion bordering the opening 52A from the right X2 is referred to as a right peripheral portion 52E. Each of the left peripheral edge portion 52D and the right peripheral edge portion 52E is formed in a plate shape that is thin in the front-rear direction Y and elongated in the up-down direction Z, and projects in a flange shape from the opening 52A in the left-right direction X. The upper peripheral edge 52B, the lower peripheral edge 52C, the left peripheral edge 52D, and the right peripheral edge 52E are formed in a frame shape surrounding the opening 52A in a unified state. The internal space of the case portion 52 is formed so as to be recessed from the upper peripheral edge portion 52B, the lower peripheral edge portion 52C, the left peripheral edge portion 52D, and the right peripheral edge portion 52E to the front Y1.

The cover 53 is formed in a rectangular plate shape that is thin in the front-rear direction Y and long in the left-right direction X in the posture of FIG. The cover portion 53 is a bulging portion 53A formed so that a portion inside the outer peripheral edge portion over the four sides bulges toward the rear Y2. In the outer peripheral edge portion of the cover portion 53, the portion Z1 above the bulging portion 53A is referred to as an upper peripheral portion 53B, and the portion Z2 below the bulging portion 53A is referred to as a lower peripheral portion 53C. Each of the upper peripheral portion 53B and the lower peripheral portion 53C has a plate shape that is thin in the front-rear direction Y and elongated in the left-right direction X. The upper peripheral edge portion 53 B is the upper end portion of the cover portion 53. The upper peripheral edge 53B is formed with a notch 55 that is slightly recessed from the upper edge to the lower Z2. In the lower peripheral edge portion 53C, the same number of through holes 56 as the screw holes 54 of the case portion 52 are formed side by side at substantially equal intervals in the left-right direction X. The left end through-hole 56 is located at the left end of the lower peripheral edge 53C, and the right end through-hole 56 is located at the right end of the lower peripheral edge 53C.

In the outer peripheral edge of the cover part 53, the left X1 part from the bulging part 53A is called a left peripheral part 53D, and the right X2 part from the bulging part 53A is called a right peripheral part 53E. Each of the left peripheral edge portion 53D and the right peripheral edge portion 53E is formed in a plate shape that is thin in the front-rear direction Y and elongated in the vertical direction Z. The upper peripheral portion 53B, the lower peripheral portion 53C, the left peripheral portion 53D, and the right peripheral portion 53E are formed in a frame shape surrounding the bulging portion 53A in a unified state.

A closing portion 60 is provided at the upper end portion of the outer surface portion 2B of the main body 2 above the case portion 52 above the case portion 52. The closing portion 60 is made of, for example, resin and is elongated in the left-right direction X, and is fixed to the outer surface portion 2B so as to border the upper end of the outer surface portion 2B along the left-right direction X. At both end portions in the left-right direction X of the rear side surface portion of the closing portion 60, one recess 61 that is recessed toward the front Y1 is formed. When the refrigerator 1 is transported, the closing portion 60 becomes a grip portion that is gripped when the operator's hand is inserted into the recess 61.

The insertion groove 62 extending along the left-right direction X is provided in the lower end portion 60A of the closing portion 60 while being recessed from the lower end surface upward Z1. In the case part 52 fixed to the outer side surface part 2B, the entire region in the left-right direction X in the upper peripheral edge part 52B is in a state of being inserted into the insertion groove 62 from below Z2. A plurality of screws 63 for fixing the closing portion 60 to the main body 2 are assembled to the closing portion 60 side by side in the left-right direction X (see FIG. 9 described later). Some screws 63 are exposed in the insertion groove 62.

The cover part 53 is attached to the case part 52 from the rear Y2 as shown in FIG. At the time of attachment, first, the upper peripheral edge 53B of the cover 53 is passed through the lower Z2 of the lower end 60A of the closing part 60 as shown by the solid arrow, and then the insertion groove 62 of the lower end 60A is inserted. Insert from below Z2. At this time, the screw 63 (see FIG. 9) exposed in the insertion groove 62 fits into the notch 55 of the upper peripheral edge 53B from above Z1, whereby the cover 53 is positioned in the left-right direction X.

By inserting the upper peripheral edge 53B into the insertion groove 62 from the lower side Z2, the entire cover part 53 moves slightly upward Z1, so that the lower peripheral edge 53C of the cover part 53 is in the case part 52 in the vertical direction Z. It becomes the same position as the lower peripheral edge portion 52C, and faces the lower peripheral edge portion 52C from the rear Y2. At this time, each through hole 56 of the lower peripheral edge portion 53C overlaps with any screw hole 54 in the lower peripheral edge portion 52C in the front-rear direction Y. Next, when the screws 64 are inserted through the through holes 56 from the rear Y2 and assembled into the screw holes 54, the attachment of the cover portion 53 to the case portion 52 is completed.

FIG. 9 is a rear view of the upper part of the refrigerator 1 after the attachment of the cover part 53 to the case part 52 is completed. Referring to FIG. 9, in a state where cover portion 53 is attached to case portion 52, bulging portion 53 A of cover portion 53 is in a state where opening portion 52 A of case portion 52 is closed from rear Y 2 in front-rear direction Y. is there. Further, the upper peripheral edge 53B of the cover part 53 is in contact with the upper peripheral edge 52B of the case part 52 over the entire area in the left-right direction X from the rear Y2. The lower peripheral edge portion 53C of the cover portion 53 is in contact with the lower peripheral edge portion 52C of the case portion 52 from the rear Y2 over the entire region in the left-right direction X. The left peripheral edge portion 53D of the cover portion 53 is in contact with the left peripheral edge portion 52D of the case portion 52 over the entire area in the vertical direction Z from the rear Y2. The right peripheral edge portion 53E of the cover portion 53 is in contact with the right peripheral edge portion 52E of the case portion 52 over the entire area in the vertical direction Z from the rear Y2.

Referring to FIG. 10 which is a cross-sectional view taken along the line XX of FIG. 9 and FIG. 11 which is an enlarged view of the main part of FIG. 10, in particular, the upper peripheral edge 52B and the upper peripheral edge 53B are in contact with each other. In the left-right direction X, the insertion groove 62 at the lower end of the closing portion 60 is inserted from below Z2. As a result, the boundary portion between the upper peripheral edge portion 52B and the upper peripheral edge portion 53B is closed from the upper side Z1 by the groove bottom 62A of the insertion groove 62 in the closing portion 60.

Therefore, the water droplets flowing down from the upper Z1 cannot reach the boundary portion. Therefore, it can prevent that the control part 11 in the cover part 53 breaks down by the water immersion from upper direction Z1. Further, since the upper peripheral edge portion 52B and the upper peripheral edge portion 53B are connected by being inserted into the insertion groove 62 without using a fastening member such as a screw, the cover portion 53 and the case portion 52 are connected. Therefore, it is possible to reduce the number of fastening members necessary for the purpose. Moreover, since the closure part 60 serves also as the holding part hold | gripped for conveyance of the refrigerator 1 as mentioned above, it can aim at reduction of a number of parts.

FIG. 12 is a rear view of the outer plate 51 of the main body 2 of the refrigerator 1. Referring to FIG. 12, a part of the flow path 26 described above is arranged in the front Y 1 of the outer plate 51 so as to meander in the vertical direction Z as it goes in the horizontal direction X. Therefore, a plurality of linear portions 70 extending linearly along the vertical direction Z are present in the flow path 26 disposed in front Y1 of the outer plate 51.

In the outer plate 51, a pair of projecting portions 71 that linearly extend along the straight portion 70 while projecting forward Y 1 is provided in the vicinity of at least one of the straight portions 70. In FIG. 12, a pair of projecting portions 71 are provided in the vicinity of each of the two inner straight portions 70 among the four straight portions 70 arranged in the left-right direction X. Each protrusion 71 is formed in a bead shape by denting a portion of the outer plate 51 in the vicinity of the linear portion 70 toward the front Y1. Each protrusion 71 is slightly shorter than the straight portion 70 in the vertical direction Z.

Referring to FIG. 13 which is a cross-sectional view taken along the line XIII-XIII in FIG. 12, the main body 2 includes a vacuum heat insulating member 72. The vacuum heat insulating member 72 includes, for example, a resin-laminated film bag 73 and a heat insulating material 74 such as glass wool that is filled in the bag 73 in a vacuum state. It is formed. The vacuum heat insulating member 72 exists separately from the heat insulating member 14 made of urethane, and is fixed to the outer plate 51 of the rear Y2 with an adhesive. Therefore, the vacuum heat insulating member 72 is covered with the outer plate 51 from the outside of the main body 2. In this case, the front Y1 of the outer plate 51 is on the vacuum heat insulating member 72 side. A part of the flow paths 26 located in front Y 1 of the outer plate 51 is in a state of being disposed between the outer plate 51 and the vacuum heat insulating member 72.

A recess 75 for accommodating the flow path 26 is formed in the side surface portion of the rear Y2 in the vacuum heat insulating member 72. In FIG. 13, corresponding to the four straight portions 70 in the flow path 26, four recesses 75 that accommodate the straight portions 70 one by one are provided side by side in the left-right direction X. These four depressions 75 are in a state of being blocked from the rear Y2 by the outer plate 51. Among these four depressions 75, in the two depressions 75A on both outer sides in the left-right direction X, the inner space of the depression 75A is exposed to the outside in the left-right direction X, but the inner spaces of the remaining two inner depressions 75B are In a sealed state without being exposed. In this case, when the compressed and heated refrigerant flows through the flow path 26, the excess air remaining in the recess 75B expands. Thereby, there exists a possibility of deteriorating the appearance of the refrigerator 1 by deform | transforming the part which block | closed the hollow 75B in the outer plate | board 51 so that it may swell to back Y2 as shown with a dotted line.

Referring to FIG. 14, which is an enlarged view of the main part of FIG. 13, the pair of protrusions 71 on the outer plate 51 are provided in the vicinity of the straight portion 70 accommodated in the recess 75B. A region between the pair of projecting portions 71 in the outer plate 51 constitutes an accommodation groove 76 that extends in the vertical direction Z while being recessed toward the rear Y2. A plurality of through holes 77 that penetrate the outer plate 51 in the groove bottom 76 A in the front-rear direction Y are provided in the groove bottom 76 A of the housing groove 76 at substantially equal intervals in the vertical direction Z (see also FIG. 12).

The straight portion 70 provided with the protrusion 71 in the vicinity thereof is accommodated from the front Y1 with respect to the accommodation groove 76. Accordingly, the straight portion 70 is sandwiched from the left-right direction X by the pair of protrusions 71 on both sides of the accommodation groove 76. Therefore, the linear portion 70 can be positioned in the recess 75B. The inner space of the recess 75 B is in communication with the outside of the main body 2 through the through hole 77. Therefore, excess air in the recess 75 B can escape from the through hole 77 to the outside of the main body 2. Therefore, as described above, it is possible to prevent the portion of the outer plate 51 that blocks the depression 75B from being deformed and deteriorating in appearance.

However, by providing the through hole 77, a burr (not shown) may exist at the peripheral edge of the through hole 77 in the outer plate 51. If the bag 73 of the vacuum heat insulating member 72 is torn by the burr coming into contact with the vacuum heat insulating member 72, the degree of vacuum of the vacuum heat insulating member 72 is lowered, and the heat insulating performance of the vacuum heat insulating member 72 is also lowered. However, the through hole 77 is provided in a region between the pair of protrusions 71 in the outer plate 51, that is, a region farther from the vacuum heat insulating member 72 to the rear Y 2 than the protrusion 71. Further, a straight portion 70 of the flow path 26 exists between the peripheral edge portion of the through hole 77 and the vacuum heat insulating member 72. Therefore, the vacuum heat insulating member 72 can be prevented from coming into contact with and being damaged by the burrs that may be present at the peripheral edge of the through hole 77.

Furthermore, an attachment member 78 made of aluminum tape or the like is attached to the outer plate 51 from the front Y1 so as to be interposed between the vacuum heat insulating member 72 and the through hole 77. The attachment member 78 is formed in a strip shape longer than the region where the through hole 77 is formed in the outer plate 51, and the pair of projecting portions 71 and the gap between them are formed so as to be longitudinal in the vertical direction Z along this region. Affixed to the straight portion 70 from the front Y1 (see also FIG. 12). In this case, it is possible to reliably prevent the vacuum heat insulating member 72 from coming into contact with and being damaged by the burrs that may exist at the peripheral edge of the through hole 77 in the main body 2 plate. Moreover, since the linear part 70 is fixed to the outer plate 51 by the mounting member 78, the linear part 70 can be positioned reliably.

The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

For example, the configuration related to the substrate box 10, the outer plate 51, and the vacuum heat insulating member 72 is not limited to the outer surface 2 B of the rear Y 2 of the main body 2, and may be provided on any side surface in the left-right direction X.

Further, a pair of protrusions 80 having the same configuration as the protrusion 71 described above are provided so as to be positioned with the end of the straight line portion 70 of the flow channel 26 and a portion other than the straight line portion 70 in the flow channel 26 interposed therebetween. (See FIG. 12).

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Main body 2B Outer side surface part 4 Storage chamber 11 Control part 25 Compressor 26 Flow path 27 Cooler 36 Defrost heater 41 Fan drive motor 42 Damper switching motor 43 Temperature sensor 51 Outer plate 52 Case part 52A Opening part 52B Upper peripheral part 53 Cover part 53B Upper peripheral edge part 60 Closure part 62 Insertion groove 71 Projection part 72 Vacuum heat insulating member 77 Through hole 78 Mounting member Y Front-rear direction Y1 Front Z Vertical direction Z1 Upper Z2 Lower

Claims

A main body formed with a storage chamber for storing articles to be stored in a cold state;
A controller electrically connected to the electrical components in the body;
A case portion that is provided on an outer surface portion extending in a vertical direction in the main body, has an opening facing the outside of the main body from the outer surface portion along an intersecting direction with respect to the vertical direction, and stores the control unit;
A cover part that is attached to the case part and closes the opening from the crossing direction;
An insertion groove recessed upward is provided, and includes a closing portion that closes a boundary portion between the upper end portions from above by inserting the upper end portions of the cover portion and the case portion from below into the insertion groove. A refrigerator characterized by that.
The refrigerator according to claim 1, wherein the closing portion includes a grip portion provided in the main body and gripped for transporting the refrigerator.
An outer plate constituting the outer shell of the main body,
A vacuum heat insulating member covered from the outside of the main body by the outer plate;
A compressor for compressing the refrigerant;
A cooler for evaporating the refrigerant;
A portion is disposed between the outer plate and the vacuum heat insulating member, and includes a flow path for circulating a refrigerant between the compressor and the cooler,
The outer plate includes a pair of projecting portions that extend along the flow channel while projecting toward the vacuum heat insulating member and sandwich the flow channel, and a through hole that penetrates the outer plate between the pair of projecting portions. The refrigerator according to claim 1, wherein the refrigerator is provided.
4. The refrigerator according to claim 3, further comprising an attachment member attached to the outer plate from the vacuum insulation member side so as to be interposed between the vacuum insulation member and the through hole.