JP2021096045A - refrigerator - Google Patents

Abstract

To provide a refrigerator that has a high degree of freedom in designing installation of an ice-making chamber.SOLUTION: A refrigerator includes: a housing including a refrigerating chamber and an ice-making chamber; a refrigerating chiller; a refrigerating capillary tube for supplying refrigerant used by the refrigerating chiller to cool the cool air for the refrigerating chamber; and an ice-making capillary tube for supplying refrigerant used by the refrigerating chiller to cool the cool air for the ice-making chamber. The refrigerant supplied by the ice-making capillary tube has a pressure that is higher than the refrigerant supplied by the refrigerating capillary tube.SELECTED DRAWING: Figure 5

Description

Embodiments of the present invention relate to refrigerators.

Conventionally, a refrigerator equipped with an ice making room is known. The ice making room is placed in the refrigerating room space to keep the room temperature at a temperature at which ice can be made. By the way, it may be preferable that the arrangement of the ice making chamber has a high degree of freedom in design.

Japanese Unexamined Patent Publication No. 2011-158251

An object to be solved by the present invention is to provide a refrigerator having a high degree of freedom in design regarding the installation of an ice making chamber.

The refrigerator of the embodiment includes a housing including a refrigerating chamber and an ice making chamber, a refrigerating cooler, a refrigerating capillary tube for supplying a refrigerant used by the refrigerating cooler to cool the cold air to the refrigerating chamber, and the refrigerating. The refrigerator has an ice-making capillary tube for supplying a refrigerant used for cooling the cold air to the ice-making chamber. The refrigerant supplied by the ice-making capillary tube has a higher pressure than the refrigerant supplied by the refrigerating capillary tube.

The refrigerator of the embodiment includes a housing including a refrigerating chamber, an ice making chamber, and a freezing chamber, a refrigerating cooler arranged behind the refrigerating chamber, a refrigerating cooler arranged behind the freezing chamber, and the above. A refrigerating capillary tube that supplies a refrigerant used by the refrigerating cooler to cool the cold air to the refrigerating chamber, and an ice-making capillary tube that supplies the refrigerant used by the refrigerating cooler to cool the cold air to the ice-making chamber. The refrigerating cooler has a refrigerating capillary tube for supplying a refrigerant used for cooling the cold air to the freezing chamber. The refrigerant supplied by the ice-making capillary tube has a higher pressure than the refrigerant supplied by the refrigerating capillary tube.

The front view of the refrigerator which concerns on 1st Embodiment. Front view showing the refrigerator with multiple doors removed. A cross-sectional view taken along the line F2-F2 of the refrigerator shown in FIG. The figure which shows the 1st cooling module of the refrigerator. The perspective view which shows a part of the cooling part of the refrigerator. The block diagram which shows the refrigeration cycle apparatus. FIG. 4 is a cross-sectional view taken along the line F3-F3 of the refrigerator shown in FIG. The perspective view which shows a part of the cooling part of the refrigerator which concerns on 2nd Embodiment.

Hereinafter, the refrigerator of the embodiment will be described with reference to the drawings. In the following description, configurations having the same or similar functions are designated by the same reference numerals. Then, the duplicate description of those configurations may be omitted.

In this specification, the left and right are defined with reference to the direction in which the user standing in front of the refrigerator sees the refrigerator. In addition, the side closer to the user standing in front of the refrigerator when viewed from the refrigerator is defined as "front", and the side far from the refrigerator is defined as "rear". In the present specification, the "width direction" means the left-right direction in the above definition. In the present specification, the "depth direction" means the front-back direction in the above definition. In the figure, the + X direction is the right direction, the −X direction is the left direction, the + Y direction is the rear direction, the −Y direction is the front direction, the + Z direction is the upward direction, and the −Z direction is the downward direction.

(First Embodiment)
[1. Overall configuration of refrigerator]
The refrigerator 1 of the first embodiment will be described with reference to FIGS. 1 to 7. First, the overall configuration of the refrigerator 1 will be described. However, the refrigerator 1 does not have to have all of the configurations described below, and some configurations may be omitted as appropriate.

FIG. 1 is a front view showing the refrigerator 1 of the first embodiment. FIG. 2 is a front view showing the refrigerator 1 from which the plurality of doors 11 have been removed. FIG. 3 is a cross-sectional view taken along the line F2-F2 of the refrigerator 1 shown in FIG. As shown in FIGS. 1 and 3, the refrigerator 1 includes, for example, a housing 10, a plurality of doors 11, a plurality of shelves 12, a plurality of containers 13, a flow path forming component 14, a cooling unit 15, and a control board 16. Have.

The housing 10 has an upper wall 21, a lower wall 22, left and right side walls 23, 24, and a rear wall 25. The upper wall 21 and the lower wall 22 extend substantially horizontally. The left and right side walls 23 and 24 stand upward from the left and right ends of the lower wall 22 and are connected to the left and right ends of the upper wall 21. The rear wall 25 stands upward from the rear end of the lower wall 22 and is connected to the rear end of the upper wall 21.

As shown in FIG. 3, the housing 10 has, for example, an inner box 10a, an outer box 10b, and a heat insulating portion 10c. The inner box 10a is a member that forms the inner surface of the housing 10. The outer box 10b is a member that forms the outer surface of the housing 10. The outer box 10b is formed to be one size larger than the inner box 10a, and is arranged outside the inner box 10a. A heat insulating portion 10c containing a foamed heat insulating material such as urethane foam is provided between the inner box 10a and the outer box 10b.

A plurality of storage chambers 27 are provided inside the housing 10. The plurality of storage chambers 27 include, for example, a refrigerator compartment 27A, an ice making chamber 27C, a small freezer compartment 27D, and a main freezer compartment 27E. In the present embodiment, the refrigerating chamber 27A is arranged at the uppermost part, the ice making chamber 27C is arranged at the lower left of the refrigerating chamber 27A, and the small freezing chamber 27D is arranged below the refrigerating chamber 27A and the ice making chamber 27C. The main freezer compartment 27E is arranged below the 27D. The bottom surfaces of the refrigerating chamber 27A and the ice making chamber 27C are arranged in a substantially horizontal direction. However, the arrangement of the storage chamber 27 is not limited to the above example, and the arrangement of the small freezing chamber 27D and the main freezing chamber 27E may be reversed, for example. The housing 10 has an opening on the front side of each storage chamber 27 that allows food to be taken in and out of each storage chamber 27. A part of the lower part of the refrigerating chamber 27A is formed as a chilled chamber 27AA.

The openings of the plurality of storage chambers 27 are closed by a plurality of doors 11 so as to be openable and closable. The plurality of doors 11 include, for example, the left and right refrigerating chamber doors 11Aa and 11Ab that close the opening of the refrigerating chamber 27A, the small freezing chamber door 11D that closes the opening of the small freezing chamber 27D, and the main freezing chamber that closes the opening of the main freezing chamber 27E. Includes door 11E. The opening of the ice making chamber 27C is closed by the left refrigerating chamber door 11Aa.

The housing 10 has a first partition 28 and a second partition 29. The first partition 28 is a partition wall located between the refrigerating chamber 27A and the ice making chamber 27C and partitioning between the refrigerating chamber 27A and the ice making chamber 27C. The first partition portion 28 is a partition wall that bends in a substantially L shape. On the other hand, the second partition portion 29 is located between the refrigerating chamber 27A and the ice making chamber 27C and the small freezer compartment 27D, and is a partition wall partitioning between the refrigerating chamber 27A and the ice making chamber 27C and the small freezer compartment 27D. .. The second partition portion 29 is a partition wall along a substantially horizontal direction. A part of the first partition 28 is connected to the second partition 29. The ice making chamber 27C is surrounded by a first partition 28, a second partition 29, and a left wall 23. The first partition 28 and the second partition 29 have a heat insulating property.

The plurality of shelves 12 are provided in the refrigerator compartment 27A.
The plurality of containers 13 include a chilled chamber container 13A provided in the chilled chamber 27AA, an ice making chamber container (not shown) provided in the ice making chamber 27C, a small freezing chamber container 13D provided in the small freezing chamber 27D, and a main freezer. Includes first and second main freezer containers 13Ea, 13Eb provided in chamber 27E.

The flow path forming component 14 is arranged in the housing 10. The flow path forming component 14 includes a first duct component 31 and a second duct component 32.

The first duct component 31 is provided along the rear wall 25 of the housing 10 and extends in the vertical direction. The first duct component 31 extends from the rear of the lower end of the refrigerating chamber 27A to the rear of the upper end of the refrigerating chamber 27A, for example. A first duct space D1 and a third duct space D3 (not shown), which are passages through which cold air (air) flows, are formed between the first duct component 31 and the rear wall 25 of the housing 10. The first duct component 31 has a plurality of refrigerating chamber cold air outlets 31a, an ice making chamber cold air outlet 31d, and a cold air return port 31c. The refrigerating chamber cold air outlet 31a is open to the refrigerating chamber 27A, and is provided so as to blow cold air from the first duct space D1 to the refrigerating chamber 27A. The plurality of refrigerating chamber cold air outlets 31a are provided at a plurality of height positions above the chilled chamber 27AA. The ice making chamber cold air outlet 31d (not shown) is open to the ice making chamber 27C, and is provided so as to blow cold air from the third duct space D3 into the ice making chamber 27C. The cold air return port 31c is provided at the lower end of the first duct component 31 and is located behind the chilled chamber 27AA and behind the ice making chamber 27C.

The second duct component 32 is provided along the rear wall 25 of the housing 10 and extends in the vertical direction. The second duct component 32 extends from the rear of the main freezing chamber 27E to the rear of the upper end portion of the small freezing chamber 27D, for example. A second duct space D2, which is a passage through which cold air (air) flows, is formed between the second duct component 32 and the rear wall 25 of the housing 10. The second duct component 32 has a cold air outlet 32a and a cold air return port 32b. The cold air outlet 32a is provided at the upper end of the second duct component 32 and is located behind the small freezer chamber 27D. The cold air return port 32b is provided at the lower end of the second duct component 32 and is located behind the main freezing chamber 27E.

The cooling unit (cooling unit) 15 circulates a first cooling module 40 for cooling the first storage chamber, a second cooling module 45 for cooling the second storage chamber, a compressor 49, and a refrigerant. It includes a refrigeration cycle device 50 (see FIG. 6) that cools the first cooling module 40 and the second cooling module 45. The first storage chamber is, for example, a storage chamber in a refrigerating temperature zone or an ice making temperature zone (refrigerating chamber 27A, ice making chamber 27C). The second storage chamber is, for example, a storage chamber in the freezing temperature zone (small freezing chamber 27D, main freezing chamber 27E).

FIG. 4 is a diagram showing the first cooling module 40.
The first cooling module 40 includes, for example, a refrigerating cooler 41, a refrigerating fan 43, a refrigerating damper 42, an ice making fan 44, and an ice making damper 47. The refrigerating cooler 41 is arranged in the first duct space D1 and the third duct space D3. The refrigerating cooler 41 is arranged behind the refrigerating chamber 27A, and is arranged at a height corresponding to the chilled chamber 27AA of the refrigerating chamber 27A, for example. The refrigerating cooler 41 is supplied with the refrigerant compressed by the compressor 49 to cool the cold air flowing through the first duct space D1 and the third duct space D3.

As shown in FIG. 4, the refrigerating fan 43 is provided above the refrigerating cooler 41.
When the refrigerating fan 43 is driven, the cold air cooled by the refrigerating cooler 41 flows into the first duct space D1. A refrigerating damper 42 for adjusting the amount of air flowing into the first duct space D1 is provided between the refrigerating fan 43 and the first duct space D1. As shown in FIG. 3, the air flowing into the first duct space D1 is blown out to the refrigerating chamber 27A from the plurality of refrigerating chamber cold air outlets 31a. The cold air blown out to the refrigerating chamber 27A flows through the refrigerating chamber 27A and then returns to the cold air return port 31c again. As a result, the cold air flowing through the refrigerating chamber 27A is circulated in the refrigerator 1 to cool the refrigerating chamber 27A.

As shown in FIG. 4, the ice making fan 44 is provided above the refrigerating cooler 41. The ice making fan 44 is arranged in the left-right direction with the refrigerating fan 43. The ice making fan 44 and the refrigerating fan 43 can be controlled independently of each other. When the ice making fan 44 is driven, the cold air cooled by the refrigerating cooler 41 flows into the third duct space D3. An ice-making damper 47 for adjusting the amount of air flowing into the third duct space D3 is provided between the ice-making fan 44 and the third duct space D3. The air flowing into the third duct space D3 is blown out to the ice making chamber 27C from the ice making chamber cold air outlet 31d. The cold air blown out to the ice making chamber 27C flows through the ice making chamber 27C and then returns to the cold air return port 31c again. As a result, the cold air flowing through the ice making chamber 27C is circulated in the refrigerator 1 to cool the ice making chamber 27C.

On the other hand, the second cooling module 45 includes a refrigerating cooler 46 and a refrigerating fan 48, as shown in FIG. The refrigerating cooler 46 is arranged in the second duct space D2. The refrigerating cooler 46 is supplied with a refrigerant compressed by a compressor 49 described later, and cools the cold air flowing through the second duct space D2.

As shown in FIG. 3, the refrigerating fan 48 is provided at the cold air return port 32b of the second duct component 32. When the refrigerating fan 48 is driven, the air in the main freezing chamber 27E flows into the second duct space D2 from the cold air return port 32b. The air that has flowed into the second duct space D2 flows upward in the second duct space D2 and is cooled by the refrigerating cooler 46. The cold air cooled by the refrigerating cooler 46 flows into the small freezing chamber 27D and the main freezing chamber 27E from the cold air outlet 32a. The cold air flowing into the small freezing chamber 27D flows through the small freezing chamber 27D, passes through the main freezing chamber 27E, and returns to the cold air return port 32b again. As a result, the cold air flowing in the small freezer chamber 27D and the main freezer chamber 27E is circulated in the refrigerator 1, and the small freezer chamber 27D and the main freezer chamber 27E are cooled.

The compressor 49 is provided, for example, in the machine room 62 at the bottom of the refrigerator 1. The compressor 49 compresses the refrigerant gas used for cooling the storage chamber 27. The refrigerant gas compressed by the compressor 49 is sent to the refrigerating cooler 41 and the refrigerating cooler 46 via a condenser 51 or the like described later.

As shown in FIG. 3, the housing 10 has a third partition portion 63. The third partition 63 is a partition wall located between the machine room 62 and the main freezing room 27E and partitioning the machine room 62 and the main freezing room 27E. Since the third partition 63 partitions the machine room 62 having the highest temperature and the main freezing room 27E having the lowest temperature, the housing 10 has the thickest heat insulating thickness and high heat insulating properties.

The heat insulating thickness of the first partition 28 is thinner than the heat insulating thickness of the third partition 63. The first partition 28 that partitions the refrigerating chamber 27A and the ice making chamber 27C needs to have a high heat insulating property, but does not need a high heat insulating property as high as that of the third partition 63. By making the heat insulating thickness of the first partition portion 28 thinner than the heat insulating thickness of the third partition portion 63, it is possible to suppress a reduction in the internal volume of the refrigerating chamber 27A.

The control board (control unit) 16 comprehensively controls the entire refrigerator 1. For example, the control board 16 controls the cooling unit (cooling unit) 15 and the like based on the detection results of the temperature sensors provided in the refrigerating chamber 27A and the main freezing chamber 27E and the like.

[2. Refrigeration cycle device]
FIG. 5 is a perspective view showing a part of the cooling unit 15. FIG. 6 is a configuration diagram showing a refrigeration cycle device 50. The refrigerating cycle device 50 includes a compressor 49, a condenser 51, a dryer 52, a four-way valve 53, and a capillary tube (refrigerating capillary tube 54, ice making capillary tube 60, refrigerating capillary tube 55) in the order of refrigerant flow. ), A cooler (refrigerator cooler 41, refrigerator cooler 46), and a suction pipe (refrigerator suction pipe 57, refrigerating suction pipe 58) are connected in an annular shape.

A condenser 51 and a dryer 52 are sequentially connected to the high-pressure discharge port of the compressor 49 via a connecting pipe 56. A four-way valve 53, which is a solenoid valve, is connected to the discharge side of the dryer 52. The four-way valve 53 has one inlet and three outlets to which the dryer 52 is connected. The three outlets of the four-way valve 53 are connected to the refrigerating capillary tube 54, the ice-making capillary tube 60, and the freezing capillary tube 55, respectively.

The four-way valve 53 controls the flow of the refrigerant according to the instruction from the control board 16, and selects one or both of (1) flow path B1 and flow path B2 and (2) flow path C. The flow path B1 is a flow path for supplying the refrigerant to the refrigerating cooler 41 via the refrigerating capillary tube 54 in order to cool the refrigerating chamber 27A. The flow path B2 is a flow path for supplying the refrigerant to the refrigerating cooler 41 via the ice making capillary tube 60 in order to cool the ice making chamber 27C. The four-way valve 53 allows the refrigerant to flow through either the flow path B1 or the flow path B2. On the other hand, the flow path C is a flow path for supplying the refrigerant to the refrigerating cooler 46 via the refrigerating capillary tube 55 in order to cool the second storage chamber (small freezing chamber 27D and main freezing chamber 27E). .. As shown in FIG. 6, these three flow paths merge at the confluence point D, and the refrigerant returns from the confluence point D to the compressor 49 via the flow path E.

The refrigerating capillary tube 54 is a connecting pipe that supplies the refrigerant from the compressor 49 via the four-way valve 53 to the refrigerating cooler 41. The refrigerating capillary tube 54 forms a part of the flow path B1. The inner diameter of the refrigerating capillary tube 54 is, for example, about 0.7 mm.

The ice-making capillary tube 60 is a connecting pipe that supplies the refrigerant from the compressor 49 via the four-way valve 53 to the refrigerating cooler 41. The ice-making capillary tube 60 forms a part of the flow path B2. The total length of the ice-making capillary tube 60 is substantially equal to the total length of the refrigerating capillary tube 54. The inner diameter of the ice-making capillary tube 60 is smaller than the inner diameter of the refrigerating capillary tube 54, for example, about 0.6 mm.

The refrigerating suction pipe 57 is a connecting pipe for returning the refrigerant from the refrigerating cooler 41 to the compressor 49. As shown in FIG. 5, the refrigerating suction pipe 57 is arranged meandering along the rear wall 25. The length of the refrigerating suction pipe 57 is, for example, about 3 meters. As shown in FIG. 5, the refrigerating capillary tube 54 and the ice-making capillary tube 60 are provided in parallel with the refrigerating suction pipe 57.

FIG. 7 is a cross-sectional view taken along the line F3-F3 of the refrigerator 1 shown in FIG. 4, and is a cross-sectional view of the refrigerating suction pipe 57, the refrigerating capillary tube 54, and the ice-making capillary tube 60. The refrigerating capillary tube 54 and the ice-making capillary tube 60 are connected to the outer surfaces of the refrigerating suction pipe 57 facing each other in the radial direction by welding or the like. The refrigerating suction pipe 57, the refrigerating capillary tube 54, and the ice-making capillary tube 60 are covered with a cover tube 61.

The refrigerating capillary tube 55 is a connecting pipe that supplies the refrigerant from the compressor 49 via the four-way valve 53 to the refrigerating cooler 46. The refrigerating capillary tube 55 forms a part of the flow path C.

The refrigerating suction pipe 58 is a connecting pipe for returning the refrigerant from the refrigerating cooler 46 to the compressor 49. As shown in FIG. 5, the refrigerating suction pipe 58 is arranged meandering along the rear wall 25. As shown in FIG. 5, the refrigerating capillary tube 55 is provided in parallel with the refrigerating suction pipe 58. As shown in FIG. 6, a check valve 59 is provided between the refrigerating cooler 46 and the compressor 49 to prevent the refrigerant from the refrigerating cooler 41 from flowing back to the refrigerating cooler 46 side. Has been done.

Next, the flow of the refrigerant in the refrigeration cycle device 50 will be described.

[2.1. Refrigeration cycle using flow path B1]
First, as shown in FIG. 6, the refrigerant circulating in the refrigeration cycle device 50 is compressed by the compressor 49 to become a high-temperature, high-pressure gaseous refrigerant, which flows through the flow path A. The gaseous refrigerant is dissipated by the condenser 51 to become a medium-temperature, high-pressure liquid refrigerant. After that, the liquid refrigerant from which impurities such as dirt and moisture have been removed enters the four-way valve 53 through the dryer 52.

The liquid refrigerant enters the refrigerating capillary tube 54 while being throttle-controlled by the four-way valve 53. At this time, the medium-temperature and high-pressure liquid refrigerant in the refrigerating capillary tube 54 is depressurized while exchanging heat with the refrigerant in the refrigerating suction pipe 57. Then, this refrigerant evaporates while passing through the refrigerating cooler 41, and the inside of the first cooling module 40 is cooled.

When the flow path B1 is selected as the flow path of the refrigerant by the four-way valve 53, the control board 16 operates the refrigerating fan 43. Further, the control board 16 opens the refrigerating damper 42. As a result, the cold air cooled by the refrigerating cooler 41 flows into the first duct space D1. The air that has flowed into the first duct space D1 is blown out to the refrigerating chamber 27A from the plurality of refrigerating chamber cold air outlets 31a. At this time, it is preferable to close the ice making damper 47 so that the cold air for refrigeration does not flow into the third duct space D3 and the room temperature of the ice making chamber 27C does not rise.

After that, the low-temperature, low-pressure gaseous refrigerant flows into the refrigerating suction pipe 57. At this time, the temperature of the refrigerant gas immediately after flowing into the refrigerating suction pipe 57 from the refrigerating cooler 41 is as low as about −10 ° C. However, this refrigerant gas exchanges heat with the refrigerant in the refrigerating capillary tube 54 while passing through the refrigerating suction pipe 57, and is finally heated to about room temperature. Then, this refrigerant gas is sucked into the compressor 49 again, and the circulation of the refrigerant is completed.

[2.2. Refrigeration cycle using flow path B2]
The liquid refrigerant enters the ice-making capillary tube 60 while being throttle-controlled by the four-way valve 53. At this time, the medium-temperature and high-pressure liquid refrigerant in the ice-making capillary tube 60 is depressurized while exchanging heat with the refrigerant in the refrigerating suction pipe 57. Then, this refrigerant evaporates while passing through the refrigerating cooler 41, and the inside of the first cooling module 40 is cooled.

The ice-making capillary tube 60 has substantially the same overall length and a smaller inner diameter than the refrigerating capillary tube 54. Therefore, the pressure of the liquid refrigerant supplied by the ice-making capillary tube 60 is higher than that of the liquid refrigerant supplied by the refrigerating capillary tube 54. Therefore, when the flow path B2 is selected, a more pressurized liquid refrigerant is sent to the refrigerating cooler 41 as compared with the case where the flow path B1 is selected, and the refrigerating cooler 41 evaporates. The temperature becomes lower, and the inside of the first cooling module 40 is cooled more.

When the flow path B2 is selected as the flow path of the refrigerant by the four-way valve 53, the control board 16 operates the ice making fan 44. Further, the control board 16 opens the ice making damper 47. As a result, the cold air cooled by the refrigerating cooler 41 flows into the third duct space D3. The air flowing into the third duct space D3 is blown out to the ice making chamber 27C from the ice making chamber cold air outlet 31d. At this time, it is preferable to close the refrigerating damper 42 so that the cold air for ice making does not flow into the first duct space D1 and the refrigerating chamber 27A does not become too cold.

After that, the low-temperature, low-pressure gaseous refrigerant flows into the refrigerating suction pipe 57. At this time, the temperature of the refrigerant gas immediately after flowing into the refrigerating suction pipe 57 from the refrigerating cooler 41 is as low as about −10 ° C. However, this refrigerant gas exchanges heat with the refrigerant in the ice-making capillary tube 60 while passing through the refrigerating suction pipe 57, and is finally heated to about room temperature. Then, this refrigerant gas is sucked into the compressor 49 again, and the circulation of the refrigerant is completed.

[2.3. Refrigeration cycle using flow path C]
The liquid refrigerant enters the refrigerating capillary tube 55 while being throttle-controlled by the four-way valve 53. At this time, the medium-temperature and high-pressure liquid refrigerant in the refrigerating capillary tube 55 is depressurized while exchanging heat with the refrigerant in the refrigerating suction pipe 58. Then, this refrigerant evaporates while passing through the refrigerating cooler 46, and the inside of the second cooling module 45 is cooled.

After that, the low-temperature, low-pressure gaseous refrigerant flows into the refrigerating suction pipe 58. At this time, the temperature of the refrigerant gas immediately after flowing from the refrigerating cooler 46 or into the refrigerating suction pipe 58 is as low as about −10 ° C. However, this refrigerant gas exchanges heat with the refrigerant in the refrigerating capillary tube 55 while passing through the refrigerating suction pipe 58, and is finally heated to about room temperature. Then, this refrigerant gas is sucked into the compressor 49 again, and the circulation of the refrigerant is completed.

According to the refrigerator 1 according to the present embodiment, the cold air that cools the refrigerating chamber 27A from the refrigerating cooler 41 by simply adding only the ice-making capillary tube 60 to the refrigerating suction pipe 57 and the refrigerating capillary tube 54. And cold air that cools the ice making chamber 27C can be generated. Even when the ice making chamber 27C is arranged in a refrigerating space away from the small freezing chamber 27D and the main freezing chamber 27E, it is not necessary to add a cooler for the ice making chamber 27C. Further, it is not necessary to provide a large-scale duct for circulating cold air from the refrigerating cooler 46 to the ice making chamber 27C. Therefore, in the refrigerator 1 according to the present embodiment, the ice making room can be arranged not only in the freezing space but also in the refrigerating space, and the degree of freedom in designing the setting of the ice making room is high.

(Second Embodiment)
The second embodiment will be described with reference to FIG. The second embodiment is different from the first embodiment in that the refrigerator does not have a freezing space. In the following description, the same reference numerals will be given to the configurations common to those already described, and duplicate description will be omitted.

The refrigerator 1B of the second embodiment includes, for example, a housing 10B, a plurality of doors 11B, a plurality of shelves 12, a plurality of containers 13B, a flow path forming component 14B, a cooling unit 15B, and a control board 16.

The housing 10B is the same as the housing 10 of the first embodiment except that the small freezing chamber 27D and the main freezing chamber 27E are not included.

The plurality of doors 11B are the same as the plurality of doors 11 of the first embodiment except that the small freezer door 11D and the main freezer door 11E are not included.

The plurality of containers 13B are the same as the plurality of containers 13 of the first embodiment, except that the small freezer container 13D and the first and second main freezer containers 13Ea and 13Eb are not included.

The flow path forming component 14B is the same as the flow path forming component 14 of the first embodiment except that the second duct component 32 is not included.

FIG. 8 is a perspective view showing a part of the cooling unit 15B.
The cooling unit 15B is the same as the cooling unit 15 of the first embodiment except that the second cooling module 45, the refrigerating capillary tube 55, and the refrigerating suction pipe 58 are not included.

According to the refrigerator 1B according to the present embodiment, the cold air that cools the refrigerating chamber 27A from the refrigerating cooler 41 by simply adding only the ice-making capillary tube 60 to the refrigerating suction pipe 57 and the refrigerating capillary tube 54. And cold air that cools the ice making chamber 27C can be generated. Therefore, the refrigerator 1B according to the present embodiment does not need to add a cooler for the ice making chamber 27C, and has a high degree of freedom in design regarding the installation of the ice making chamber.

(Modification example 1)
In the above embodiment, the ice-making capillary tube 60 has substantially the same overall length and a smaller inner diameter as compared with the refrigerating capillary tube 54, but the mode of the ice-making capillary tube is not limited to this. The total length of the ice-making capillary tube may be longer than that of the refrigerating capillary tube 54. In this case, the ice-making capillary tube can send a more pressurized liquid refrigerant to the refrigerating cooler 41, and can lower the evaporation temperature of the refrigerating cooler 41. When the total length of the ice-making capillary tube is longer than the total length of the refrigerating capillary tube 54, the inner diameter of the ice-making capillary tube 60 and the inner diameter of the refrigerating capillary tube 54 may be the same.

According to at least one embodiment described above, the ice making room can be arranged not only in the freezing space but also in the refrigerating space without providing an additional cooler or a large-scale duct, and the degree of freedom in designing the setting of the ice making room is high. ..

Although some embodiments of the present invention have been described, 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 forms, and various omissions, replacements, and changes can be made without departing from the gist 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.

1,1B ... Refrigerator, 10,10B ... Housing, 11 ... Door, 15,15B ... Cooling unit (cooling unit), 16 ... Control board (control unit), 27 ... Storage room, 27A ... Refrigerator room, 27C ... Ice making Room, 27D ... Small freezer, 27E ... Main freezer, 28 ... 1st partition, 29 ... 2nd partition, 31 ... 1st duct parts, 32 ... 2nd duct parts, 40 ... 1st cooling module, 41 ... Refrigerator cooler, 42 ... Refrigerator damper, 43 ... Refrigerator fan, 44 ... Ice making fan, 45 ... Second cooling module, 46 ... Refrigerator cooler, 47 ... Ice making damper, 48 ... Refrigerator fan, 49 ... Compressor, 50 ... Refrigerating cycle device, 53 ... Four-way valve, 54 ... Refrigerating capillary tube, 55 ... Refrigerating capillary tube, 57 ... Refrigerating suction pipe, 58 ... Refrigerating suction pipe, 60 ... Ice-making capillary tube , 62 ... Machine room, 63 ... Third partition

Claims (14)

The housing including the refrigerator and ice making room,
Refrigerator and
A refrigerating capillary tube that supplies a refrigerant used by the refrigerating cooler to cool the cold air to the refrigerating chamber.
An ice-making capillary tube that supplies a refrigerant used by the refrigerating cooler to cool the cold air to the ice-making chamber.
With
The refrigerant supplied by the ice-making capillary tube has a higher pressure than the refrigerant supplied by the refrigerating capillary tube.
refrigerator. The inner diameter of the ice-making capillary tube is smaller than the inner diameter of the refrigerating capillary tube.
The refrigerator according to claim 1. The total length of the ice-making capillary tube is shorter than the total length of the refrigerating capillary tube.
The inner diameter of the ice-making capillary tube is equal to or less than the inner diameter of the refrigerating capillary tube.
The refrigerator according to claim 1. It has a refrigerating suction pipe from which the refrigerant is discharged from the refrigerating cooler.
The refrigerating capillary tube and the ice-making capillary tube are connected to outer surfaces facing each other in the radial direction of the refrigerating suction pipe, respectively.
The refrigerator according to any one of claims 1 to 3. A refrigerating fan that sends cold air to the refrigerating room,
An ice-making fan that sends cold air to the ice-making chamber,
With
The ice making fan and the refrigerating fan can be controlled independently.
The refrigerator according to any one of claims 1 to 4. A refrigerating damper that adjusts the amount of cold air to the refrigerating room is provided.
The refrigerator according to any one of claims 1 to 5, which closes the refrigerating damper when cold air is sent from the refrigerating cooler to the ice making chamber. Equipped with an ice-making damper that adjusts the air volume of cold air to the ice-making chamber.
The refrigerator according to any one of claims 1 to 6, which closes the ice-making damper when cold air is sent from the refrigerating cooler to the refrigerating chamber. The housing includes a freezer
A refrigerating cooler arranged behind the freezing chamber and
The refrigerator according to any one of claims 1 to 7, wherein the refrigerating cooler comprises a refrigerating capillary tube for supplying a refrigerant used for cooling the cold air to the freezing chamber. Equipped with a machine room equipped with a compressor,
The heat insulating thickness of the partition wall separating the ice making room and the refrigerating room is thinner than the heat insulating thickness of the partition wall separating the machine room and the freezing room.
The refrigerator according to claim 8. The refrigerating cooler is arranged behind the refrigerating chamber.
The refrigerator according to any one of claims 1 to 9. A housing that includes a refrigerator, ice, and freezer,
Refrigerator and
Refrigerator and
A refrigerating capillary tube that supplies a refrigerant used by the refrigerating cooler to cool the cold air to the refrigerating chamber.
An ice-making capillary tube that supplies a refrigerant used by the refrigerating cooler to cool the cold air to the ice-making chamber.
A refrigerating capillary tube that supplies a refrigerant used by the refrigerating cooler to cool the cold air to the freezing chamber.
With
The refrigerant supplied by the ice-making capillary tube has a higher pressure than the refrigerant supplied by the refrigerating capillary tube.
refrigerator. The inner diameter of the ice-making capillary tube is smaller than the inner diameter of the refrigerating capillary tube.
The refrigerator according to claim 11. The total length of the ice-making capillary tube is shorter than the total length of the refrigerating capillary tube.
The inner diameter of the ice-making capillary tube is equal to or less than the inner diameter of the refrigerating capillary tube.
The refrigerator according to claim 11. The refrigerating cooler is arranged behind the refrigerating chamber.
The refrigerating cooler is arranged behind the freezing chamber.
The refrigerator according to any one of claims 11 to 13.

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