CN220981663U - Refrigerator with a door - Google Patents

Abstract

The utility model provides a refrigerator, which uses a blower, can realize the homogenization of the flow rate of sucked air and can restrain the deviation of the air quantity of blown air in the width direction of the refrigerator. The refrigerator comprises a refrigerating chamber (11), a refrigerating cooling chamber (30) provided with a refrigerating cooler (54) is formed on the back side of the refrigerating chamber (11), and a 2 nd partition plate (50) for partitioning the refrigerating chamber (11) and the refrigerating cooling chamber (30); and a blower (70) disposed on the back side of the 2 nd partition plate (50). The rotary fan (71) of the blower (70) is arranged at a position where the rotation axis thereof is laterally displaced from the widthwise center of the refrigerating chamber (11).

Description

Refrigerator with a door

Technical Field

The present utility model relates to a refrigerator.

Background

Patent document 1 discloses a refrigerator including: the cooling system includes a1 st storage room in a refrigerating temperature range, a2 nd storage room in a freezing temperature range, a1 st evaporator for cooling the 1 st storage room, a2 nd evaporator for cooling the 2 nd storage room, a1 st fan for supplying air cooled by the 1 st evaporator, and a2 nd fan for supplying air cooled by the 2 nd evaporator, wherein the 1 st fan is a turbo fan arranged at a position higher than the 1 st evaporator, and the depth dimension of the 1 st evaporator is made equal to the depth of a part of a wind supply path in which the turbo fan is arranged.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2019-078493

Disclosure of utility model

Problems to be solved by the utility model

The utility model provides a refrigerator, which uses a blower to realize homogenization of the flow rate of sucked air and inhibit deviation of the air volume of blown air in the width direction of the refrigerator.

Means for solving the problems

The refrigerator of the present utility model includes a storage compartment, a cooling compartment provided with a cooler is formed on a back side of the storage compartment, and a partition portion that partitions the storage compartment from the cooling compartment; and a blower disposed on the rear surface side of the partition, wherein a rotary fan of the blower is disposed at a position where a rotation axis thereof is laterally offset from a widthwise center of the storage chamber.

In the above configuration, an intake port for sucking air in the storage chamber may be provided below the cooler, and a fan intake port of the blower may be arranged above the cooler at a position offset from a widthwise center of the intake port in a lateral direction.

In the above configuration, a duct for conveying air blown out from the blower to the storage chamber may be provided on the rear surface side of the partition portion, and the blower may include a fan housing for guiding air blown out by rotation of the rotary fan to the duct.

In the above configuration, the fan case may be formed in a scroll shape that gradually expands based on the rotation center of the rotary fan, and a return portion that is formed by recessing a part of the inclined surface toward the inside of the fan case may be formed in a middle portion of the inclined surface provided below the fan case.

In the above structure, the fan housing may further include a damper that adjusts an air volume of the air flowing in the duct.

In the above configuration, the partition may include a blowout port communicating with the duct and a blowout port communicating with another storage chamber provided in the storage chamber, and the damper may be provided in each of the blowout ports.

In the above configuration, the fan case may be provided with a rectifying member at a boundary portion of each of the air outlets.

Effects of the utility model

The refrigerator of the present utility model can realize the homogenization of air flow in the left and right areas of the cooler and can improve the heat exchange efficiency of the cooler.

Drawings

Fig. 1 is a longitudinal sectional view of a refrigerator according to embodiment 1.

Fig. 2 is a front view of the cooling chamber portion of embodiment 1.

Fig. 3 is an exploded perspective view of the pipe portion of embodiment 1.

Fig. 4 is a rear view of the blower portion of embodiment 1.

Fig. 5 is a perspective view of the blower portion of embodiment 1 from the back side.

Fig. 6 is an exploded perspective view of the blower portion of embodiment 1.

Fig. 7 is an exploded perspective view of the blower portion of embodiment 1 from the back side.

Fig. 8 is an enlarged view of a blower portion of embodiment 1.

Fig. 9 is an enlarged view of the blower portion of embodiment 1 with the fan housing removed.

Fig. 10 is a diagram showing the results of simulation of the state in which air is sucked from the fan inlet by the blower according to embodiment 1.

Fig. 11 is a diagram showing the results of simulation of the suction state of air from the fan suction port in the case where the blower is provided in the approximately center of the left and right sides of the refrigerator.

Fig. 12 is a diagram showing a ratio of air flow passing through each region of the refrigeration chiller divided into 5 regions in the left-right direction.

Fig. 13 is a diagram illustrating a ratio of the flow rate in fig. 12.

Fig. 14 is a diagram showing a simulation result of the wind speed of the air flowing inside the fan housing of the blower.

Description of the reference numerals

1. Refrigerator with a door

5. Compressor with a compressor body having a rotor with a rotor shaft

10. Shell body

11. Refrigerating chamber

12. Freezing chamber

13. Switching room

14. Door

15. Vegetable room

16. Micro freezing chamber

17. Drawer box for vegetable room

Drawer box for 18 micro-freezing chamber

19. Drawer type door for freezing chamber

20. Drawer box for freezing chamber

21 Switch-over room drawer type door

Drawer box for 22-switch room

30 Cooling chamber for refrigeration

31 St partition plate 1

321 St form insulation material

33. Pipeline for refrigeration

34. Main wind path

35. Auxiliary air path

35. Each auxiliary air path

36. Inlet for refrigeration

37. Air outlet for refrigeration

38. Side blow-out port

39. Front air outlet

40. Rectifying block

41 Guide rib

50 Nd separator plate

51 Rd partition plate 3

52 No. 2 shaped insulating material

53. Suction inlet for refrigeration

54. Cooler for refrigeration

60. Cooling chamber for freezing

61 4 Th partition plate

62. Suction inlet for freezing

63. Air outlet for freezing

64. Air outlet for switching chamber

65. Cooler for freezing

66. Fan for freezing

67. Heater

70. Blower fan

71. Rotary fan

72. Fan shell

73. Suction inlet of fan

74. Fan outlet

75 Fan mounting portion

76 Housing mounting recess

77. Inclined surface

78. Return part

79. Flange part

81. Air door

82. Air door for refrigeration

83. Air door for micro-freezing chamber

84. Air door for vegetable room

85 1 St drainage channel

86 Nd water drain tank

87. Wiring groove

88. Locking piece

90. Blowing opening

91. Inflow port for micro freezing chamber

92. Blow-out port for micro-freezing chamber

93. Pipeline for micro-freezing chamber

94. Inflow port for vegetable room

95. Vegetable room air outlet

96. Pipeline for vegetable room

97. Rectifying component

100. Wiring harness

101. Connector housing part

Detailed Description

(Knowledge and so on which form the basis of the present utility model)

In the present inventors, a technique of forming the 1 st fan from a turbo fan and blowing out air by the turbo fan has been proposed.

However, in the related art, the turbo fan is provided at a substantially central portion in the left-right direction of the refrigerator. In this way, if the turbo fan is provided at the substantially central portion in the lateral direction of the refrigerator, the air sucked into the turbo fan is sucked in a swirl shape, and therefore there is a possibility that the suction air volume of the air directed toward the turbo fan may deviate in the lateral direction of the refrigerator. That is, in the conventional art, since the intake air volume of the air varies, the air volume of the air passing through the cooler also varies, and there is a problem in that uniform heat exchange cannot be performed.

The inventors have found that the same is true for the air volume blown out by the turbo fan, and that the larger the air volume is in the radial direction of the fan, the more the deviation of the air flowing through the duct is eventually generated, and have found that the present utility model has been made to solve the problem.

The utility model provides a refrigerator, which uses a blower to realize homogenization of the flow rate of sucked air and inhibit deviation of the air volume of blown air in the width direction of the refrigerator.

The embodiments are described in detail below with reference to the drawings. However, the above detailed description may be omitted. For example, a detailed description of known matters or a repetitive description of substantially the same structure may be omitted.

Furthermore, the drawings and the following description are provided for a full understanding of the present utility model by those skilled in the art, and are not intended to limit the subject matter recited in the claims.

(Embodiment 1)

Hereinafter, embodiment 1 will be described with reference to fig. 1 to 11.

[1-1. Structure ]

[1-1-1. Structure of refrigerator ]

Fig. 1 is a longitudinal sectional view of a refrigerator according to embodiment 1. Fig. 2 is a front view of the cooling chamber portion of embodiment 1. Fig. 3 is an exploded perspective view of the pipe portion of embodiment 1.

In the description of the present specification, the refrigerator 1 is used with reference to fig. 1 and 2 in the front-rear direction and the left-right direction. That is, the left and right sides of fig. 1 correspond to the front and rear sides of the refrigerator 1. The left and right sides of fig. 2 correspond to the left and right sides of the refrigerator 1. In the case where the front surface of the refrigerator 1 is shown, the front surface may be referred to as "front surface". In the case of showing the rear surface of the refrigerator 1, the rear surface may be referred to as a rear surface.

As shown in fig. 1, the refrigerator 1 includes a box-shaped case 10 having an open front. Behind the upper surface of the housing 10, a compressor 5 is mounted.

A refrigerating chamber 11 of about 2 c to 4 c is formed above the case 10 as a storage chamber, and a freezing chamber 12 of about-18 c is formed below the case 10. A switching chamber 13 is formed between the refrigerating chamber 11 and the freezing chamber 12. By operating a not-shown change-over switch, the change-over chamber 13 can be used as a low-temperature chamber or freezing chamber 12 at about-5 ℃ to about 1 ℃.

In the refrigerator 1, a rotary door 14 is provided to be openable and closable at an opening portion of a front surface of the refrigerator compartment 11.

A vegetable compartment 15 as a storage compartment located at an upper layer and a micro freezing compartment 16 as a storage compartment located at a lower layer are provided below the inside of the refrigerating compartment 11.

The vegetable compartment 15 is provided with a vegetable compartment drawer box 17, and the micro-freezer compartment 16 is provided with a micro-freezer drawer box 18.

A drawer door 19 for a freezing chamber is provided in an openable and closable manner in an opening portion of a front surface of the freezing chamber 12, and a drawer box 20 for a multi-layered freezing chamber for storing food is provided therein.

A switching-chamber drawer door 21 is provided in an opening portion of the front surface of the switching chamber 13 so as to be openable and closable, and a switching-chamber drawer box 22 is provided in association with the opening and closing of the switching-chamber drawer door 21.

As shown in fig. 1, a cooling chamber 30 for refrigeration is provided on the back surface side of the refrigerating chamber 11 of the refrigerator 1.

The refrigerating compartment 11 and the cooling compartment 30 for refrigeration are partitioned by a1 st partition plate 31, and a1 st molded heat insulating material 32 having substantially the same outer shape as the 1 st partition plate 31 is provided on the back surface side of the 1 st partition plate 31.

A refrigerating duct 33 is formed on a surface of the 1 st molded heat insulating material 32 facing the 1 st partition plate 31.

The cooling duct 33 includes a main air duct 34 extending in the vertical direction at the substantially center in the horizontal direction, and two sub air ducts 35 extending obliquely upward in the horizontal direction from both sides of the main air duct 34.

A refrigerating inlet 36 communicating with a fan outlet 74 of a blower 70 described later is formed at the lower end of the main air duct 34, and the refrigerating inlet 36 is located at a substantially central portion in the lateral direction of the refrigerator 1. A cooling air outlet 37 communicating with the upper side of the cooling chamber 11 is formed in the upper end of the main air duct 34.

The sub-air passages 35 are formed in a shape that becomes thinner toward the left and right, and side air outlets 38 that communicate with the sides of the refrigerator compartment 11 are formed in the front end portions of the sub-air passages 35.

A front air outlet 39 is formed in a middle portion of the main air duct 34, and is disposed at a predetermined interval in the vertical direction and communicates with the refrigerating compartment 11.

A rectifying block 40 is provided in the vicinity above the front blow-out port 39. The lower surface of the rectifying block 40 located below is formed in a planar shape. The lower surface of the upper rectifying block 40 is formed as an inclined surface inclined upward and leftward.

A guide rib 41 extending in the up-down direction is provided below the cooling duct 33 between the cooling inlet 36 and the front air outlet 39 located below. The lower end portion of the guide rib 41 is disposed at a position offset from the left-right direction substantially in the center of the refrigerating inlet 36, on the side opposite to the side on which the rotary fan of the blower 70 described later is provided. Thereby, the guide rib 41 is disposed slightly inclined with respect to the up-down direction.

The cool air flowing in from the cooling inlet 36 passes through the main air duct 34, and is blown out from the upper end of the main air duct 34 to the cooling compartment 11 through the air outlet. In addition, a part of the cool air of the main air duct 34 is blown out from the side air outlet 38 to the refrigerator compartment 11 via each of the sub air ducts 35, and is blown out from the front air outlet 39 to the refrigerator compartment 11.

A2 nd partition plate 50 and a3 rd partition plate 51 are provided between the vegetable compartment 15 and the micro-freezer compartment 16 and the refrigerating compartment 30.

A 2 nd molded heat insulating material 52 is provided between the 2 nd partition plate 50 and the 3 rd partition plate 51. The partition portion of the present utility model is constituted by the 2 nd partition plate 50, the 3 rd partition plate 51, and the 2 nd molded heat insulating material 52.

A refrigerating suction port 53 communicating with the micro freezing chamber 16 is formed at the lower end portions of the 2 nd partition plate 50, the 2 nd molding heat insulating material 52, and the 3 rd partition plate 51.

A refrigeration cooler 54 is provided below the rear surface side of the 2 nd partition plate 50. A blower 70 is provided above the 2 nd partition plate 50.

A cooling chamber 60 for freezing is provided on the back side of the freezing chamber 12 and the switching chamber 13 of the refrigerator 1.

The freezing chamber 12 and the cooling chamber 60 for freezing are partitioned by a 4 th partition plate 61. A refrigeration suction port 62 that communicates with the freezing chamber 12 and takes cool air of the freezing chamber 12 into the refrigeration cooling chamber 60 is formed in the 4 th partition plate 61.

The 4 th partition plate 61 is provided with a freezing air outlet 63 communicating with the freezing chamber 12 and a switching chamber air outlet 64 communicating with the switching chamber 13.

The freezing chamber 60 accommodates a freezing cooler 65.

The refrigeration cooler 65 is, for example, a fin-tube cooler. The fin-tube cooler is, for example, a cooler composed of a circular tube and a flat fin. A cooling fan 66 for feeding the cool air cooled by the cooling cooler 65 into the freezing chamber 12 is disposed above the cooling cooler 65.

As the cooling fan 66, for example, an axial fan is used. The axial flow fan is disposed so that the air outlet side thereof is inclined upward, and the cool air cooled by the freezing cooler 65 is efficiently blown out to the freezing chamber 12.

The cooling fan 66 may be, for example, a centrifugal fan.

A heater 67 such as a glass tube heater for defrosting the frost adhering to the freezing cooler 65 is disposed below the freezing cooler 65.

A water pan 68 for freezing is disposed below the cooler 65 for freezing.

1-1-2 Structure of blower part

Next, the structure of the blower portion will be described.

Fig. 4 is a rear view of the blower portion of embodiment 1, and is a perspective view of the internal structure of the fan housing 72 for easy understanding. Fig. 5 is a perspective view of the blower portion of embodiment 1 from the back side, and is a perspective view of the internal structure of the blower housing 72 for easy understanding. Fig. 6 is an exploded perspective view of the blower portion of embodiment 1. Fig. 7 is an exploded perspective view of the blower portion of embodiment 1 from the back side. Fig. 8 is an enlarged view of a blower portion of embodiment 1. Fig. 9 is an enlarged view of the blower portion of embodiment 1 with the fan housing removed.

As shown in fig. 4 to 7, the blower 70 includes a rotary fan 71 and a fan housing 72 covering the rotary fan 71. The blower 70 sucks air from the rotation axis direction of the rotary fan 71 and blows the air in the radial direction of the rotary fan 71.

The fan housing 72 is formed in a scroll shape that gradually expands with reference to the rotation center of the blower 70. In the present embodiment, the fan housing 72 is formed in a shape in which an upper portion of the rotary fan 71 of the blower 70 is closest to the rotary fan 71, gradually expands, and extends toward a substantially central portion in the left-right direction of the refrigerator 1.

A fan suction port 73 that sucks air by rotation of the rotary fan 71 is formed in a surface of the fan housing 72. A fan outlet 74 that communicates with the cooling air inlet 36 of the main air duct 34 is formed in an upper portion of the fan housing 72.

The fan outlet 74 of the fan housing 72 is located at a substantially central portion in the left-right direction of the refrigerator 1. Therefore, the rotation center of the rotary fan 71 is displaced in one direction (left direction as viewed from the front side) from the center in the left-right direction of the refrigerator 1.

The rotary fan 71 of the blower 70 is mounted on the back side of the 2 nd partition plate 50. A fan mounting portion 75 having an opening is provided at a mounting portion of the rotary fan 71 of the 2 nd partition plate 50.

A housing mounting recess 76 having substantially the same shape as the outer shape of the fan housing 72 is formed around the fan mounting portion 75.

The lower side of the fan housing 72 is an inclined surface 77 inclined obliquely upward. A return portion 78 is formed in the middle of the inclined surface 77 so as to recess a part of the inclined surface 77 toward the inside of the fan housing 72.

A flange 79 extending outward is formed on the outer periphery of the fan housing 72.

At a predetermined position outside the case mounting recess 76 of the 2 nd partition plate 50, a plurality of engagement claws 80 are provided which engage with the flange portion 79 of the fan case 72 and fix the fan case 72 to the 2 nd partition plate 50.

Thus, the flange 79 is engaged with the engagement claw 80, whereby the fan case 72 can be easily fixed to the 2 nd partition plate 50.

A blowout opening 90 is formed in the upper surface of the 2 nd partition plate 50. The fan outlet 74 of the fan housing 72 is provided at the opening 90 for blowing.

An inflow port 91 for a micro freezing chamber is formed on one side of the blowout opening 90 of the 2 nd partition plate 50. The 2 nd molded heat insulating material 52 is provided with a micro-freezing chamber duct 93 that communicates an inflow port 91 for the micro-freezing chamber with an outflow port 92 for the micro-freezing chamber that opens into the micro-freezing chamber 16.

Further, a vegetable room inlet 94 is formed on the other side of the blowout opening 90 of the 2 nd partition plate 50. The 2 nd molded heat insulating material 52 is formed with a vegetable chamber duct 96 that communicates a vegetable chamber inlet 94 with a vegetable chamber outlet 95 that opens into the vegetable chamber 15.

A substantially triangular rectifying member 97 protruding downward toward the upstream side is provided between the opening 90 for blowing and the inflow port 91 for the micro freezing chamber and the inflow port 94 for the vegetable chamber.

The air door 81 is provided in the blowing opening 90. The damper 81 is located at a substantially central portion in the left-right direction, and is composed of a refrigeration damper 82 that adjusts the flow rate of cold air to the refrigeration inlet 36 of the refrigeration duct 33; a micro-freezing chamber damper 83 that adjusts the flow rate of cold air to the micro-freezing chamber duct 93; and a damper 84 for vegetable room for regulating the flow rate of cold air to the duct 96 for vegetable room.

A1 st drain groove 85 is formed in the 2 nd molded heat insulating material 52 to communicate the housing mounting recess 76 with the lower side of the fan housing 72. A2 nd drain 86 is formed in the 2 nd molded insulating material 52 to communicate the fan mounting portion 75 with the lower side of the fan housing 72.

Thus, the dew condensation water collected in the casing attaching concave portion 76 is discharged to the outside of the fan casing 72 through the 1 st drain groove 85, and the dew condensation water collected in the fan attaching portion 75 is discharged to the outside of the fan casing 72 through the 2 nd drain groove 86.

A wiring groove 87 is also formed in the 2 nd molding heat insulating material 52, and the wiring groove 87 extends obliquely downward from the fan mounting portion 75 to take out wiring of the rotary fan 71 to the outside of the fan housing 72. A locking piece 88 for locking the wiring is provided in the middle of the wiring groove 87.

The upper end of the wiring groove 87 is located above the upper end of the 2 nd drain groove 86, and thereby dew condensation water accumulated in the wiring groove 87 is discharged to the outside of the fan housing 72 through the 2 nd drain groove 86.

The wiring 100 taken out from below the wiring groove 87 is guided to the upper side of the fan housing 72 along the outer periphery of the fan housing 72.

A connector housing 101 is provided above the 2 nd partition plate 50, and a connector (not shown) provided at an end of the wiring 100 is housed in the connector housing 101.

[1-2. Actions etc. ]

Next, an operation of the refrigerator 1 in embodiment 1 will be described.

In the present embodiment, the compressor 5 is driven to send the refrigerant to the refrigerant circuit, and the refrigerant is selectively circulated through the refrigeration chiller 54 or the freezing chiller 65, thereby cooling the refrigeration chiller 54 or the freezing chiller 65.

By driving the blower 70, the air in the refrigerator 11 is sucked into the cooling chamber 30 for refrigeration through the suction port 53 for refrigeration. The air sucked into the refrigerating cooling chamber 30 flows from the lower side to the upper side in the refrigerating cooler 54, exchanges heat with the refrigerating cooler 54 through which the refrigerant flows, is cooled, and is sucked into the fan housing 72 from the fan suction port 73.

The air sucked into the fan housing 72 is blown out in the circumferential direction by the rotary fan 71, guided along the lower surface side of the fan housing 72, and blown out from the fan outlet 74 to the main air duct 34.

The air blown out into the main air duct 34 is blown out into the refrigerating chamber 11 from the refrigerating outlet 37, the side outlet 38, and the front outlet via the main air duct 34 and the sub air duct 35, respectively, to cool the refrigerating chamber 11.

On the other hand, a part of the air of the fan housing 72 is blown out from the micro-freezing chamber air outlet 92 to the micro-freezing chamber 16 through the micro-freezing chamber duct 93.

Similarly, a part of the air of the fan housing 72 is blown out from the vegetable chamber air outlet 95 to the vegetable chamber 15 through the vegetable chamber duct 96 from the vegetable chamber opening.

The flow rate of the air to be sent to the main air duct 34, the micro-freezing chamber opening, and the vegetable chamber opening is adjusted by the opening/closing amounts of the refrigeration damper 82, the micro-freezing chamber damper 83, and the vegetable chamber damper 84.

In addition, by driving the freezing fan 66, the air in the reservoir of the freezing chamber 12 is sucked into the freezing cooling chamber 60 from the suction port of the freezing chamber 12. The air sucked into the freezing cooling chamber 60 flows from the bottom to the top in the freezing cooler 65, exchanges heat with the freezing cooler 65 through which the refrigerant flows, and is cooled.

The air cooled by heat exchange with the freezing cooler 65 is blown out to the freezing chamber 12 through the freezing air outlet 63 and is blown out to the switching chamber 13 through the switching chamber air outlet 64, thereby cooling the freezing chamber 12 and the switching chamber 13.

Here, when condensation occurs in the interior of the fan housing 72 of the blower 70 and the housing mounting recess 76, condensation water drips down the fan housing 72.

In the present embodiment, since the 1 st drain groove 85 is provided, dew condensation water flows to the outside of the fan case 72 through the 1 st drain groove 85 and is accumulated in the bottom of the refrigeration cooling chamber 30.

When condensation occurs in the fan mounting portion 75 of the fan housing 72, condensation water flows from the fan mounting portion 75 to the outside of the fan housing 72 through the 2 nd drain groove 86 and is accumulated in the bottom of the refrigeration compartment 30.

The dew condensation water accumulated in the refrigerating cooling chamber 30 is accumulated below the refrigerator 1 via a dew condensation water pipe extending below the refrigerator 1.

Since the fan mounting portion 75 is formed in a stepped shape with respect to the housing mounting portion, when dew condensation occurs in the housing mounting recess 76 and the fan mounting portion 75, dew condensation water can be smoothly discharged from the fan housing 72 by the 1 st drain groove 85 and the 2 nd drain groove 86, respectively.

In the present embodiment, a wiring groove 87 is provided. Since the upper end of the wiring groove 87 is located above the upper end of the 2 nd drain groove 86, dew condensation water accumulated in the fan mounting portion 75 or dew condensation water adhering to the wiring 100 does not flow into the wiring groove 87 but flows into the 2 nd drain groove 86. Therefore, the dew condensation water accumulated in the fan mounting portion 75 and the wiring 100 can be discharged to the outside of the fan housing 72 by the 2 nd drain groove 86.

In the present embodiment, the rotary fan 71 of the blower 70 is disposed on the left side as viewed from the front from the substantially center in the lateral direction of the refrigerator 1.

Fig. 10 is a diagram showing the results of simulation of the state in which the blower of embodiment 1 sucks air from the fan inlet. Fig. 11 is a diagram showing the results of simulation of the suction state of air from the fan suction port in the case where the blower is provided in the approximately center of the left and right sides of the refrigerator. In the figure, the direction of the arrow indicates the flow direction of the air, and the length of the arrow indicates the magnitude of the wind speed of the air. The rotary fan 71 is rotationally driven in the clockwise direction in the drawing.

As shown in fig. 11, when the blower 70 is provided at the center, the right air speed is lower than the left air speed in the drawing of the refrigeration chiller 54 when the blower is sucked into the fan suction port 73.

In contrast, as shown in fig. 10, when the rotary fan 71 of the blower 70 is disposed on the left side as viewed from the front from the substantially center in the left-right direction of the refrigerator 1, it is possible to ensure substantially the same wind speed on both sides of the refrigeration chiller 54.

Fig. 12 is a diagram showing a ratio of the air flow rate passing through each region, in which the refrigeration chiller 54 is divided into 5 regions in the left-right direction. Fig. 13 is a diagram illustrating a ratio of the flow rate in fig. 12.

As shown in fig. 12 and 13, when the blower 70 shown in fig. 11 is provided at the center, the flow rate of the air flowing through the left region of the refrigeration chiller 54 is large, and the difference between the flow rates of the air flowing through the right region is large.

In contrast, when the blowers 70 shown in fig. 10 are provided in a staggered manner, it is seen that the difference in air flow rate between the left and right regions of the refrigeration chiller 54 is small.

In this way, when the blower 70 according to embodiment 1 is provided so as to be laterally offset, the variation in the flow rate of the air passing through the refrigeration chiller 54 can be suppressed, and as a result, the heat exchange efficiency can be improved by making the air flow to the refrigeration chiller 54 uniformly.

Fig. 14 is a diagram showing a simulation result of the wind speed of the air flowing inside the fan housing of the blower.

As shown in fig. 14, when the blower 70 is arranged to be laterally offset, the air flow is mainly generated along the lower end of the fan housing 72 by the rotational driving of the rotary fan 71.

Therefore, in fig. 14, the flow of air is likely to concentrate on the left side of the fan housing 72.

However, in the present embodiment, since the return portion 78 is formed on the inclined surface 77 of the fan housing 72, the flow of air is separated by the return portion 78, and the flow of air to the left side of the fan housing 72 can be reduced.

This ensures the flow rate of air flowing toward the fan outlet 74.

In the present embodiment, since the rectifying member 97 is provided between the air-flow-branching blowout opening 90 and the micro-freezing-chamber inflow port 91 and the vegetable-chamber inflow port 94, it is possible to reduce pressure loss when the air flowing through the blowout opening 90, the micro-freezing-chamber inflow port 91, and the vegetable-chamber inflow port 94 is branched, and to convey an appropriate amount of air to the blowout opening 90, the micro-freezing-chamber inflow port 91, and the vegetable-chamber inflow port 94.

In the present embodiment, since the guide rib 41 is formed in the main air duct 34, the air fed from the fan outlet 74 to the cooling air inlet 36 is separated laterally by the guide rib 41 and flows through the main air duct 34.

At this time, the air volume of the air supplied to the refrigerating inlet 36 on the side away from the rotary fan 71 increases, but since the lower end portion of the guide rib 41 is disposed at a position offset from the side opposite to the side of the rotary fan 71 where the blower 70 is provided with respect to the substantially center in the lateral direction of the refrigerating inlet 36, the guide rib 41 can ensure the air volume flowing in the region closer to the rotary fan 71 than the region away from the rotary fan 71. Therefore, the guide rib 41 can make the amount of air flowing through the main air duct 34 uniform.

[1-3. Effect etc. ]

As described above, in the present embodiment, the refrigerator includes the refrigerating chamber 11 (storage chamber), the refrigerating cooling chamber 30 (cooling chamber) provided with the refrigerating cooler 54 (cooler) is formed on the back surface side of the refrigerating chamber 11, and the refrigerator includes the 2 nd partition plate 50 (partition portion) that partitions the refrigerating chamber 11 and the refrigerating cooling chamber 30, and the blower 70 that is disposed on the back surface side of the 2 nd partition plate 50. The rotary fan 71 of the blower 70 is disposed at a position where the rotation axis thereof is laterally offset from the widthwise center of the refrigerator compartment 11.

This can make the flow rate of intake air uniform in the left and right regions of the refrigeration chiller 54, and can improve the heat exchange efficiency of the refrigeration chiller 54.

In the present embodiment, an intake port for sucking air in the refrigerating chamber 11 (storage chamber) is provided below the refrigerating cooler 54 (cooler), and the fan intake port 73 of the blower 70 is arranged above the refrigerating cooler 54 and is laterally displaced from the widthwise center of the intake port.

This can make the flow rate of the intake air in the left and right regions of the refrigeration chiller 54 uniform in the width direction of the chiller, and can improve the heat exchange efficiency of the refrigeration chiller 54. Therefore, the volume of the intake air can be made uniform in the width direction of the refrigerator 1.

In the present embodiment, a refrigerating duct 33 for delivering air blown out from a blower 70 to a refrigerating chamber 11 (storage chamber) is provided on the rear surface side of the 2 nd partition plate 50 (partition portion), and the blower 70 includes a fan housing 72, and the fan housing 72 guides air blown out by rotation of the rotary fan 71 to the refrigerating duct 33.

Accordingly, when the rotary fan 71 of the blower 70 is disposed at a position where the rotation axis thereof is laterally displaced from the widthwise center of the refrigerator compartment 11, the air blown out from the blower 70 can be guided to the duct 33 for cooling by the fan housing 72, and the variation in the air flow of the blown-out air in the widthwise direction of the refrigerator 1 can be suppressed.

In the present embodiment, the fan housing 72 is formed in a scroll shape that gradually expands with reference to the rotation center of the rotary fan 71, and a return portion 78 that is formed by recessing a part of the inclined surface 77 toward the inside of the fan housing 72 is formed in a middle portion of the inclined surface 77 provided below the fan housing 72.

As a result, the air flow guided by the fan housing 72 is peeled off through the inflection point, and thus the flow of air to the end of the fan housing 72 can be reduced unnecessarily. Therefore, variation in the air volume of the blown air can be suppressed in the width direction of the refrigerator 1.

In the present embodiment, the fan housing 72 includes a damper that adjusts the air volume of the air flowing through the cooling duct 33.

Thereby, the air volume of the air flowing through the cooling duct 33 can be adjusted by the damper.

In the present embodiment, the 2 nd partition plate 50, the 3 rd partition plate 51, and the 2 nd molded heat insulating material 52 (partition portion) include: the fan outlet 74 (outlet) communicating with the refrigerating duct 33, the vegetable chamber 15 provided in the refrigerating chamber 11 (storage chamber), the vegetable chamber outlet 95 communicating with the micro-freezer (other storage chamber), and the micro-freezer outlet 92 (outlet), and the damper is composed of a refrigerating damper 82, a micro-freezer damper 83, and a vegetable chamber damper 84.

Thus, the air volumes of the air flowing to the fan outlet 74 (outlet), the vegetable chamber outlet 95, and the micro-freezing chamber outlet 92 can be adjusted by the air door 82 for refrigeration, the air door 83 for micro-freezing chamber, and the air door 84 for vegetable chamber.

In the present embodiment, the fan housing 72 is provided with a rectifying member 97 between the opening 90 for blowing and the inflow port 91 for the micro freezing chamber and the inflow port 94 for the vegetable chamber.

Accordingly, the air volume can be appropriately split into the opening 90 for blowing, the inflow port 91 for the micro freezing chamber, and the inflow port 94 for the vegetable chamber by the rectifying member 97, and an appropriate amount of air can be supplied to the opening 90 for blowing, the inflow port 91 for the micro freezing chamber, and the inflow port 94 for the vegetable chamber.

(Other embodiments)

In addition, embodiment 1 is described as an example of the technology disclosed in the present utility model. However, the technique of the present utility model is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, and the like are made.

(Additionally remembered)

The following techniques are disclosed according to the above embodiments.

(Technique 1) a refrigerator including a storage compartment, a cooling compartment provided with a cooler being formed on a back side of the storage compartment, the refrigerator including a partition portion that partitions between the storage compartment and the cooling compartment; and a blower disposed on the rear surface side of the partition, wherein a rotary fan of the blower is disposed at a position where a rotation axis thereof is laterally offset from a widthwise center of the storage chamber.

According to this configuration, the air flow rate in the left and right regions of the cooler can be made uniform, and the heat exchange efficiency of the cooler can be improved.

(Technique 2) the refrigerator according to claim 1, wherein a suction port for sucking air in the storage compartment is provided below the cooler, and a fan suction port of the blower is arranged above the cooler at a position offset from a widthwise center of the suction port in a lateral direction.

According to this configuration, the air flow rate in the left and right regions of the cooler can be made uniform, and the heat exchange efficiency of the cooler can be improved. Therefore, the amount of intake air can be made uniform in the width direction of the refrigerator.

(Technique 3) the refrigerator according to claim 1, wherein a duct that sends air blown out from the blower to the storage compartment is provided on the rear surface side of the partition, and the blower includes a fan housing that guides air sent out by rotation of the rotary fan to the duct.

According to this configuration, when the rotary fan of the blower is disposed at a position where the rotation axis thereof is laterally offset from the widthwise center of the refrigerator compartment, the air blown out from the blower can be guided to the duct by the fan case, and the air volume of the blown air can be made uniform in the widthwise direction of the refrigerator.

(Technique 4) the refrigerator according to technique 3, wherein the fan case is formed in a scroll shape that gradually expands with reference to a rotation center of the rotary fan, and a return portion that is formed by recessing a part of the inclined surface toward an inside of the fan case is formed in a middle portion of the inclined surface that is provided below the fan case.

According to this structure, the air flow guided by the fan housing is peeled off through the inflection point, whereby the flow of air to the end portion of the fan housing can be reduced unnecessarily. Therefore, variation in the air volume of the blown air can be suppressed in the width direction of the refrigerator.

(Technique 5) the refrigerator according to technique 3, wherein the fan housing includes a damper that adjusts the air volume of the air flowing in the duct.

According to this structure, the air volume of the air flowing through the duct can be adjusted by the damper.

(6) The refrigerator according to claim 5, wherein the partition includes a blowout port communicating with the duct and a blowout port communicating with another storage compartment provided in the storage compartment, and the damper is provided in each of the blowout ports.

According to this structure, the air volume of the air flowing to the outlet can be adjusted by the damper.

The refrigerator according to claim 6, wherein the fan case is provided with a rectifying member at a boundary portion of each of the air outlets.

According to this configuration, the flow rate of air can be appropriately split by the flow splitting member into the air outlet communicating with the duct and the air outlet communicating with the other storage compartments provided in the storage compartment, respectively, and an appropriate amount of air can be supplied to each of the air outlets.

Industrial applicability

As described above, the refrigerator according to the present utility model is applicable to a refrigerator capable of making the air volume of the air sucked by the blower and the air volume of the air blown out uniform in the width direction of the refrigerator.

Claims (7)

1. A refrigerator, characterized in that:

Comprises a storage room and a storage device, wherein the storage room comprises a storage room,

A cooling chamber provided with a cooler is formed on the back side of the storage chamber,

The refrigerator includes a partition portion that partitions between the storage compartment and the cooling compartment; and

A blower disposed on the back side of the partition portion,

The rotary fan of the blower is arranged at a position where the rotation axis thereof is laterally offset from the widthwise center of the storage chamber.

2. The refrigerator of claim 1, wherein:

A suction inlet for sucking air in the storage chamber is arranged below the cooler,

The fan suction port of the blower is arranged above the cooler and is laterally offset with respect to the widthwise center of the suction port.

3. The refrigerator of claim 1, wherein:

A duct for delivering air blown out from the blower to the storage chamber is provided on the rear surface side of the partition portion,

The blower includes a fan housing that guides air sent out by rotation of the rotary fan to the duct.

4. A refrigerator according to claim 3, wherein:

The fan housing is formed in a vortex shape which gradually expands based on the rotation center of the rotary fan,

A return portion is formed in a middle portion of the inclined surface provided below the fan housing, the return portion being formed by recessing a part of the inclined surface toward the inside of the fan housing.

5. A refrigerator according to claim 3, wherein:

The fan housing includes a damper that adjusts the amount of air flowing in the duct.

6. The refrigerator of claim 5, wherein:

The partition part comprises a blowout port communicated with the pipeline and a blowout port communicated with other storage chambers and arranged in the storage chamber,

The air doors are respectively arranged at the air outlet ports.

7. The refrigerator of claim 6, wherein:

The fan housing is provided with a rectifying member at a boundary portion of each of the air outlets.