CN220981664U - Refrigerator with a door - Google Patents

Abstract

The utility model provides a refrigerator capable of realizing temperature uniformity in the refrigerator. The refrigerator is provided with a refrigeration cooler (cooler) on the back surface of the refrigerating chamber, a blower in which a rotary fan is accommodated in a fan housing, and an air path structure connected to a fan outlet of the fan housing for guiding cool air to the refrigerating chamber, wherein the air path structure includes: a main air duct which communicates with a refrigerating outlet (upper outlet) of the refrigerating chamber and guides cool air to an upper portion of the refrigerating chamber; a plurality of sub-air passages branched from the main air passage to the left and right and communicating with the side outlets of the refrigerator to guide cool air to the left and right of the refrigerator are arranged with rib members at the inlet side of the main air passage so as to narrow the width of the air passage on the side where the amount of cool air passing through the fan outlets is large, and the rib members are arranged so as to incline so that the width of the narrowed air passage gradually increases as going to the upper end side of the rib members.

Description

Refrigerator with a door

Technical Field

The present utility model relates to a refrigerator.

Background

Patent document 1 discloses a technique in which an air passage for guiding cool air to a refrigerator is formed as a directional flow passage of a blower in a refrigerator, and variation in air flow due to rotation of the blower is reduced.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2019-78493

Disclosure of utility model

Problems to be solved by the utility model

The utility model provides a refrigerator capable of realizing temperature uniformity in the refrigerator.

Means for solving the problems

The refrigerator according to aspect 1 is a refrigerator including a cooler provided on a back surface of a refrigerator compartment, a blower provided with a fan housing and a rotary fan, and a wind path structure connected to a fan outlet of the fan housing and guiding cool air to the refrigerator compartment, wherein the wind path structure includes: a main air path communicating with the upper air outlet of the refrigerating chamber and guiding cool air to the upper part of the refrigerating chamber; and a plurality of sub-air passages branched from the main air passage to the left and right and communicating with the side air outlets of the refrigerating compartment to guide cool air to the left and right of the refrigerating compartment, wherein a rib member is disposed on an inlet side of the main air passage so as to narrow an air passage width on a side where an amount of the cool air passing through the fan outlet is large, and the rib member is disposed so as to incline so that the narrowed air passage width gradually expands toward an upper end side of the rib member.

In the above configuration, the fan outlet may be located at a substantially central portion in the lateral direction of the refrigerator compartment, and the rotation center of the rotary fan may be offset to one side with respect to the center in the lateral direction of the refrigerator compartment.

In the above configuration, the air duct structure may have a plurality of front air outlets communicating with the main air duct to guide cool air to a central portion of the cooling compartment.

In the above configuration, the air passage structure may have a rectifying block protruding into the main air passage above the front air outlet to provide air passage resistance.

In the above configuration, the rib member may be disposed at a position where the main air duct and the sub air duct branch from each other.

In the above configuration, the sub-air passage may be formed so that the air passage width gradually becomes narrower as it goes toward the side air outlet.

The refrigerator according to aspect 2 is provided with a cooler, a blower, and an air passage structure connected to a fan outlet of the blower for guiding cool air to the refrigerator, wherein the air passage structure is mounted so that a partition plate and a molded heat insulating material are overlapped and the molded heat insulating material is brought into contact with an inner surface of an inner box of the refrigerator, and the refrigerator is provided with: a main air path communicating with the upper air outlet of the refrigerating chamber and guiding cool air to the upper part of the refrigerating chamber; and a plurality of sub-air passages branched from the main air passage to the left and right and communicating with side air outlets of the refrigerating compartment to guide cool air to the left and right of the refrigerating compartment, wherein the partition plate protrudes directly above the fan air outlets and has a bent portion at a lower end thereof to suppress air passage resistance of the cool air.

Effects of the utility model

According to the present utility model, the temperature in the refrigerator can be made uniform.

Drawings

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

Fig. 2 is an exploded perspective view of a pipe portion of embodiment 1.

Fig. 3 is a front view of the cooling chamber portion of embodiment 1.

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

Fig. 5 is a diagram showing a simulation result of the wind speed of the air flowing inside the fan housing of the blower.

Fig. 6 is a sectional view A-A of fig. 3.

Description of the reference numerals

1. Refrigerator with a door

2. Inner box

3. Outer box

4. Polyurethane heat insulation material

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

18. Drawer box for micro-freezing chamber

19. Drawer type door for freezing chamber

20. Drawer box for freezing chamber

21. Drawer type door for switching room

22. Drawer box for switching room

30. Cooling chamber for refrigeration

31. 1 St division plate (division plate)

32. 1 St form insulation material (form insulation material)

32A bend

33. Wind path structure

34. Main wind path

34A, 34B air passage width

35. Auxiliary air path

36. Inlet for refrigeration

37. Air outlet for cold storage (Upper air outlet)

38. Side blow-out port

39. 39D, 39U front air outlet

40. 40D, 40U rectifying block

41. Rib member

41A lower end part

41B upper end

50 Nd separator plate

51 Rd partition plate 3

52 No. 2 shaped insulating material

53. Suction inlet for refrigeration

54. Cooler for refrigeration

55. Flange

56. Bending part

57. Cover member

58. Main groove

59. Auxiliary groove

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

68. Water pan for freezing

70. Blower fan

71. Rotary fan

72. Fan shell

73. Suction inlet of fan

74. Fan outlet

77. Inclined surface

78. Return part

79. Flange part

81. Air door

82. Air door for refrigeration

83. Air door for freezing chamber

84. Air door for vegetable room

90. Blowing opening

91. Inlet for freezing chamber

92. Air outlet for freezing chamber

94. Inflow port for vegetable room

95. Vegetable room air outlet

97. Rectifying component

155 St slit 1

157 No. 2 slit

159 1 St notch

161 1 St notch

163 Notch 2

Detailed Description

(Knowledge of the underlying disclosure, etc.)

At the time when the inventors thought of the present utility model, there was one technique as follows: in the refrigerator, an air path for guiding cold air to the refrigerating chamber is formed as a directional flow path of a blower, so that deviation of air flow caused by rotation of the blower is reduced. In such a refrigerator, the inventors found that it is difficult to achieve uniform temperature of the refrigerator chamber since cold air is guided to the refrigerator chamber only from the upper portion, and have arrived at the subject of the present utility model to solve the problem.

Accordingly, the present utility model provides a refrigerator capable of realizing uniform temperature in a refrigerator compartment.

The embodiments are described in detail below with reference to the drawings. Unnecessary detailed description will be omitted in some cases. For example, a detailed description of known matters or a repetitive description of substantially the same structure may be omitted. This is to avoid redundancy beyond what is necessary to the description below, and to facilitate understanding by those skilled in the art.

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 6.

[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 an exploded perspective view of a pipe portion of embodiment 1. Fig. 3 is a front view of the cooling chamber portion of embodiment 1.

In the description of the present specification, the refrigerator 1 is used with reference to fig. 1 and 3 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. 3 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. The housing 10 includes an inner case 2 and an outer case 3, and a polyurethane heat insulating material 4 is filled between the inner case 2 and the outer case 3.

A refrigerating chamber 11 of about 2 to 4 ℃ is formed in an upper portion of the casing 10 as a storage chamber, and a freezing chamber 12 of about-18 ℃ is formed in a lower portion of the casing 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 at a lower portion 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.

As shown in fig. 2, the 1 st partition plate 31 and the 1 st molding heat insulating material 32 overlap to form a wind path structure 33.

The air duct structure 33 is attached to the rear surface of the inner case 2 in contact therewith (see fig. 1). The 1 st partition plate 31 is a flat metal plate, and three sides thereof are bent to form a flange 55. The lower edge of the 1 st partition plate 31 is bent convexly downward to form a bent portion 56, and both ends of the bent portion 56 are covered with a cover member 57. On the surface of the 1 st molded heat insulating material 32 facing the 1 st partition plate 31, a main groove 58 extending longitudinally and a sub groove 59 extending laterally and connected to the main groove 58 are formed.

The 1 st molded heat insulating material 32 is fitted between the flanges 55 of the 1 st partition plate 31, and the 1 st partition plate 31 and the 1 st molded heat insulating material 32 are in surface contact and overlap. A bent portion 32A that is convexly bent downward is formed at the lower edge of the 1 st molded heat insulating material 32, and a bent portion 56 of the 1 st partition plate 31 overlaps the upper surface of the bent portion 32A.

As shown in fig. 3, the air duct structure 33 includes a main air duct 34 extending in the vertical direction at substantially the center in the left-right direction, and two sub air ducts 35 communicating with the main air duct 34 and extending obliquely upward in the left-right direction. The main air passage 34 is formed by the main groove 58, and the sub air passage 35 is formed by the sub groove 59.

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 cooling inlet 36 is formed in the curved portion 32A of the lower edge of the 1 st molded heat insulating material 32, and the cooling outlet 37 is formed in the flange 55 on the upper side of the 1 st partition plate 31.

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. The side blow-out ports 38 are formed in flanges 55 on both sides of the 1 st partition plate 31.

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.

The front air outlet 39 is formed at a predetermined interval in the vertical direction on the plate surface of the 1 st partition plate 31. The front air outlet 39 has an upper front air outlet 39U and a lower front air outlet 39D. In the case where they are not distinguished, they are collectively referred to as a front air outlet 39. A rectifying block 40 is provided in the vicinity above the front blow-out port 39. The rectifying block 40 has an upper rectifying block 40U and a lower rectifying block 40D. In the case of not distinguishing them, they are collectively referred to as rectification blocks 40.

The rectifying block 40 becomes the air passage resistance in the main air passage 34. The lower surface of the rectifying block 40D located below is formed in a planar shape, and the cool air impinging on the rectifying block 40D easily flows to the front air outlet 39D located below.

The lower surface of the upper rectifying block 40U is inclined upward and leftward, and the cool air that collides with the inclined surface of the rectifying block 40U easily flows upward along the inclined surface to the front air outlet 39U and the cooling air outlet 37.

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.

As shown in fig. 2, the 1 st slit 155 is formed in the lower portion of the flange 55 on both sides of the 1 st partition plate 31, and the 2 nd slit 157 is formed in the lower left end of the plate surface of the 1 st partition plate 31. Further, the 1 st notch 159, 161 is formed on both sides of the lower portion of the 1 st molded heat insulating material 32, and the 2 nd notch 163 is formed at the lower left end in the figure.

The cool air in the refrigerating chamber 11 is sucked by a fan suction port 73 of a blower 70 shown in fig. 4 described later. That is, if the blower 70 rotates, the cool air in the refrigerating chamber 11 reaches the notches 159, 161, 163 of the 1 st molding heat insulator 32 through the slits 155, 157 of the 1 st partition plate 31, goes downward in the return air path (not shown) on the back side of the blower 70, goes around below the refrigerating cooler 54, is cooled again by the refrigerating cooler 54, and is sucked to the fan suction port 73 of the blower 70.

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.

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.

As shown in fig. 4, 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 (not shown) 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 having substantially the same shape as the outer shape of the fan housing 72 is formed around the fan mounting portion.

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.

A plurality of engaging claws (not shown) that engage with the flange 79 of the fan case 72 and fix the fan case 72 to the 2 nd partition plate 50 are provided at predetermined positions outside the case mounting recess (not shown) of the 2 nd partition plate 50.

Thus, the flange 79 is engaged with the engagement claw, 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. A micro-freezing chamber duct (not shown) that communicates the micro-freezing chamber inflow port 91 with the micro-freezing chamber blowout port 92 that opens into the micro-freezing chamber 16 is formed in the 2 nd molded heat insulating material 52.

Further, a vegetable room inlet 94 is formed on the other side of the blowout opening 90 of the 2 nd partition plate 50. A vegetable chamber duct (not shown) that communicates the vegetable chamber inflow port 94 with the vegetable chamber air outlet 95 that opens into the vegetable chamber 15 is formed in the 2 nd molded heat insulating material 52.

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 lateral direction, and is composed of a cooling damper 82 for adjusting the flow rate of the cooling air to the cooling inlet 36 of the air duct structure 33; a micro-freezing chamber damper 83 for adjusting the flow rate of cold air to a micro-freezing chamber duct (not shown); and a damper 84 for vegetable room for adjusting the flow rate of cool air to the duct for vegetable room (not shown).

Fig. 5 is a diagram showing simulation results of wind speed of air flowing in the fan housing 72, and is a diagram in which the internal structure of the fan housing 72 is seen in perspective so as to be easily understood. Fig. 5 is a view of the refrigerator 1 from the back side. 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. 5, the fan outlet 74 is located at a substantially central portion in the lateral direction of the refrigerator compartment 11, and the rotation center of the rotary fan 71 is offset to one side (right side of the refrigerator 1 as viewed from the back) with respect to the center in the lateral direction of the refrigerator compartment 11. 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. Thus, in fig. 5, the flow of air is likely to be concentrated on the left side of the fan housing 72.

(1-2. Structure of rib Member)

In embodiment 1, a rectifying rib member 41 that extends straight in the up-down direction is provided between the cooling air inlet 36 and the lower front air outlet 39D at a position lower than the main air duct 34. The rib member 41 is disposed between two lower sub-air passages 35 in the sub-air passages 35, that is, at the branching position of the main air passage 34 and the sub-air passage 35.

The rib member 41 is integrally formed with the 1 st molded heat insulating material 32, and is disposed in contact with the 1 st partition plate 31 so as to separate the main air passage 34. The rib 41 is disposed on the inlet side of the main duct 34 at the lower end 41A thereof so as to narrow the duct width 34A on the side where the volume of the cool air passing through the fan outlet 74 is large. The rib member 41 is disposed so as to incline so that the narrowed air passage width 34A gradually increases toward the upper end portion 41B of the rib member 41. The main duct 34 has a duct width 34B substantially equal to the left and right on the upper end 41B side of the rib 41.

According to embodiment 1, since the air passage width 34A on the side of the rib member 41 where the amount of cool air passing through the fan outlet 74 is large is narrowed at the lower end portion 41A, the air passage resistance on the side of the rib member 41 where the amount of cool air is large is increased, and the air passage width 34B is substantially uniform on the side of the upper end portion 41B of the rib member 41, so that the amount of cool air passing through the fan outlet 74 is substantially uniform over the entire width of the fan outlet 74.

According to embodiment 1, the air volume is substantially equalized on the left and right sides of the rib member 41 at the inlet of the main air duct 34, the cool air flowing in from the refrigerating inlet 36 is uniformly blown out to the refrigerating compartment 11 from the side air outlet 38 via the sub air ducts 35, and the cool air impinging on the rectifying block 40D is uniformly blown out to the refrigerating compartment 11 from the front air outlet 39D. In addition, a part of the cool air that collides with the rectifying block 40U is blown out from the front air outlet 39U to the refrigerating chamber 11, and the remaining cool air is blown out from the upper refrigerating air outlet 37 to the refrigerating chamber 11 through the main air duct 34, whereby the temperature in the refrigerating chamber 11 is made uniform.

Fig. 6 is a sectional view A-A of fig. 3.

The air duct structure 33 is formed by overlapping the 1 st partition plate 31 and the 1 st molding heat insulator 32, and attaching the molding heat insulator 32 in contact with the inner surface of the inner case 2 of the refrigerator compartment 11.

Since the 1 st partition plate 31 retreats toward the rear side so as to approach the inner case 2, the 1 st partition plate 31 protrudes directly above the fan outlet 74. A curved portion 56 for suppressing the resistance of the cooling air passage is formed at the lower end of the 1 st partition plate 31.

Since the 1 st partition plate 31 protrudes directly above the fan outlet 74, the volume of the refrigerating compartment 11 can be increased accordingly.

Even if the 1 st partition plate 31 protrudes directly above the fan outlet 74, the curved portion 56 is formed at the lower end of the 1 st partition plate 31, and therefore, the cold air flows along the curved portion 56, and the resistance of the air passage is suppressed.

The 1 st partition plate 31 corresponds to an example of "partition plate".

A polyurethane heat insulating material 4 is filled between the inner case 2 and the outer case 3, and the 1 st molded heat insulating material 32 is fixed to the surface of the inner case 2 by a fixing member (not shown) together with the 1 st partition plate 31. The 1 st molded heat insulating material 32 corresponds to an example of "molded heat insulating material".

[1-3. 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 case 72 is blown out from the micro-freezing chamber air outlet 92 to the micro-freezing chamber 16 through the micro-freezing chamber duct (not shown).

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 (not shown) 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.

In embodiment 1, since the rib 41 is formed in the main air duct 34, the air sent from the fan outlet 74 to the cooling inlet 36 is equally split by the rib 41 to flow through the main air duct 34.

The cool air blown out from the fan outlet 74 collides with the lower end of the 1 st partition plate 31 before reaching the air passage structure 33, and the direction of the air is changed to the rear direction shown in fig. 6. At this time, since the lower end of the 1 st partition plate 31 has the bent portion 56, resistance to cold air is reduced.

Further, since the 1 st molded heat insulating material is provided on the inner surface of the inner case 2, the detour of the cold air can be relatively suppressed.

[1-4. Effect, etc. ]

As described above, in the present embodiment, the refrigerator 1 is provided with the refrigerator compartment 11 at the rear surface thereof: a refrigeration chiller 54 (chiller); a blower 70 having a fan housing 72 and a rotary fan 71 accommodated therein; and a wind path structure 33 connected to the fan outlet 74 of the fan housing 72 for guiding cool air to the refrigerating chamber 11, wherein the wind path structure 33 includes: a main air duct 34 that communicates with a cooling air outlet 37 (upper air outlet) of the cooling compartment 11 and guides cool air to an upper portion of the cooling compartment 11; the plurality of left and right sub-ducts 35 branched from the main duct 34 to the left and right and communicating with the side outlets 38 of the refrigerator compartment 11 to guide the cool air to the refrigerator compartment 11 are arranged with the rib members 41 on the inlet side of the main duct 34 so as to narrow the duct width 34A on the side where the volume of the cool air passing through the fan outlets 74 is large, and the rib members 41 are arranged so that the narrowed duct width 34A gradually expands toward the upper end 41B side of the rib members 41.

Accordingly, the rib members 41 can make the amount of air flowing through the main air duct 34 uniform. Therefore, the temperature in the refrigerator compartment 11 can be made uniform.

In the present embodiment, the fan outlet 74 may be located at a substantially central portion in the lateral direction of the refrigerator compartment 11, and the rotation center of the rotary fan 71 may be offset to one side with respect to the center in the lateral direction of the refrigerator compartment 11.

Accordingly, the rib members 41 can make the amount of air flowing through the main air duct uniform. Therefore, the temperature in the refrigerator can be made uniform.

In the present embodiment, the air duct structure 33 may have a plurality of front air outlets 39 that communicate with the main air duct 34 and guide cool air to the central portion of the refrigerator compartment 11.

This makes it possible to make the amount of cold air flowing into the refrigerator compartment 11 uniform in the vertical direction. Therefore, the temperature in the refrigerator compartment 11 can be made uniform.

In the present embodiment, the air duct structure 33 may have a rectifying block 40 protruding into the main air duct 34 above the front air outlet 39 to provide air duct resistance.

Thus, the cool air is easily guided to the front air outlet 39, and the amount of cool air flowing into the refrigerator compartment 11 can be made uniform in the vertical direction. Therefore, the temperature in the refrigerator compartment 11 can be made uniform.

In the present embodiment, the rib 41 may be disposed at a position where the main air duct 34 and the sub air duct 35 branch.

This makes it possible to guide the cool air of a uniform air volume to the left and right sub-air paths 35. Therefore, the temperature in the refrigerator compartment 11 can be made uniform.

In the present embodiment, the sub-air duct 35 may be formed so that the air duct width gradually narrows toward the side air outlet 38.

This can suppress the concentration of the flow of the cold air in the sub-air duct 35. Therefore, the temperature in the refrigerator compartment 11 can be made uniform.

In the present embodiment, the refrigerator 1 is provided with a refrigeration cooler 54 (cooler) on the back surface of the refrigerator compartment 11, a blower 70 having a rotary fan 71 housed in a fan case 72, and a wind path structure 33 connected to a fan outlet 74 of the fan case 72 to guide cool air to the refrigerator compartment 11, wherein the wind path structure 33 is mounted so that the 1 st partition plate 31 (partition plate) and the 1 st molding heat insulator 32 (molding heat insulator) overlap each other and the 1 st molding heat insulator 32 is in contact with the inner surface of the inner box 2 of the refrigerator compartment 11, and the refrigerator is provided with: a main air duct 34 that communicates with a cooling air outlet 37 (upper air outlet) of the cooling compartment 11 and guides cool air to an upper portion of the cooling compartment 11; the 1 st partition plate 31 protrudes directly above the fan outlet 74 and has a bent portion 56 at the lower end thereof, which is branched from the main air duct 34 to the left and right and communicates with the side outlet 38 of the refrigerator compartment 11 to guide the cool air to the plurality of left and right sub air ducts 35 of the refrigerator compartment 11.

Thereby, the resistance to the cold air from the fan housing 72 to the main air duct 34 is reduced. Therefore, the temperature in the refrigerator compartment 11 can be made uniform.

(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 having a cooler provided on a back surface of a refrigerator compartment, a blower in which a rotary fan is housed in a fan case, and a wind path structure connected to a fan outlet of the fan case to guide cool air to the refrigerator compartment, wherein the wind path structure includes: a main air path communicating with the upper air outlet of the refrigerating chamber and guiding cool air to the upper part of the refrigerating chamber; and a plurality of sub-air passages branched from the main air passage to the left and right and communicating with the side air outlets of the refrigerating compartment to guide cool air to the left and right of the refrigerating compartment, wherein a rib member is disposed on an inlet side of the main air passage so as to narrow an air passage width on a side where an amount of the cool air passing through the fan outlet is large, and the rib member is disposed so as to incline so that the narrowed air passage width gradually expands toward an upper end side of the rib member.

According to this configuration, the rib members can make the amount of air flowing through the main air duct uniform. Therefore, the temperature in the refrigerator can be made uniform.

(Technique 2)

The refrigerator according to claim 1, wherein the fan outlet is located at a substantially central portion of the refrigerator compartment in a lateral direction, and a rotation center of the rotary fan is offset to one side with respect to the center of the refrigerator compartment in the lateral direction.

According to this configuration, the rib members can make the amount of air flowing through the main air duct uniform. Therefore, the temperature in the refrigerator can be made uniform.

(Technique 3)

The refrigerator according to claim 1, wherein the air duct structure has a plurality of front air outlets communicating with the main air duct to guide cool air to a central portion of the cooling compartment.

According to this structure, the amount of cold air flowing into the refrigerator compartment can be made uniform in the up-down direction. Therefore, the temperature in the refrigerator can be made uniform.

(Technique 4)

The refrigerator according to claim 1 or 2, wherein the air passage structure has a rectifying block protruding into the main air passage above the front air outlet to provide air passage resistance.

According to this structure, the cool air is easily guided to the front air outlet, and the amount of cool air flowing into the refrigerator compartment can be made uniform in the vertical direction. Therefore, the temperature in the refrigerator can be made uniform.

(Technique 5)

The refrigerator according to any one of claims 1 to 3, wherein the rib member is disposed at a branching position of the main air duct and the sub air duct.

According to this structure, the cool air having a uniform air volume can be guided to the sub-ducts branched to the left and right. Therefore, the temperature in the refrigerator can be made uniform.

(Technique 6)

The refrigerator according to any one of claims 1 to 4, wherein the sub-air passage is formed so that an air passage width gradually becomes narrower as the air passes through the side air outlet.

According to this structure, the concentration of the flow of the cold air in the sub-air passage can be suppressed. Therefore, the temperature in the refrigerator can be made uniform.

(Technique 7)

A refrigerator having a cooler, a blower, and an air path structure connected to a fan outlet of the blower for guiding cool air to a refrigerating chamber, wherein the air path structure is mounted so that a partition plate and a molding heat insulating material are overlapped and the molding heat insulating material is brought into contact with an inner surface of an inner box of the refrigerating chamber, and the refrigerator is provided with: a main air path communicating with the upper air outlet of the refrigerating chamber and guiding cool air to the upper part of the refrigerating chamber; and a plurality of sub-air passages branched from the main air passage to the left and right and communicating with side air outlets of the refrigerating compartment to guide cool air to the left and right of the refrigerating compartment, wherein the partition plate protrudes directly above the fan air outlets and has a bent portion at a lower end thereof to suppress air passage resistance of the cool air.

According to this structure, resistance to cold air can be reduced. Therefore, the temperature in the refrigerator can be made uniform.

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:

The refrigerator is provided with a cooler on the back of a refrigerating chamber, a blower which is accommodated with a rotary fan in a fan shell, and a wind path structure which is connected with a fan outlet of the fan shell and guides cold air to the refrigerating chamber, wherein,

The air path structure includes:

A main air path communicating with the upper air outlet of the refrigerating chamber and guiding cool air to the upper part of the refrigerating chamber; and a plurality of sub-air passages branched from the main air passage to the left and right and communicating with a side air outlet of the refrigerating compartment to guide cool air to the left and right of the refrigerating compartment,

A rib member is disposed on an inlet side of the main duct so as to narrow a duct width on a side where an amount of the cool air passing through the fan outlet is large,

The rib member is disposed so as to incline such that the narrowed air passage width gradually increases toward an upper end portion side of the rib member.

2. The refrigerator of claim 1, wherein:

The fan outlet is located at a substantially central portion of the cooling chamber in the lateral direction, and the rotation center of the rotary fan is offset to one side with respect to the center of the cooling chamber in the lateral direction.

3. The refrigerator of claim 1, wherein:

The air duct structure has a plurality of front air outlets communicating with the main air duct and guiding cool air to a central portion of the cooling compartment.

4. A refrigerator according to claim 3, wherein:

The air passage structure has a rectifying block protruding into the main air passage above the front air outlet to provide air passage resistance.

5. The refrigerator of claim 1, wherein:

the rib member is disposed at a branching position of the main air passage and the sub air passage.

6. The refrigerator of claim 1, wherein:

The sub-air passage is formed so that the air passage width gradually becomes narrower as it goes toward the side air outlet.

7. A refrigerator, characterized in that:

The refrigerator is provided with a cooler, a blower and an air path structure connected with a fan outlet of the blower to guide cool air to the refrigerator on the back side of the refrigerator, wherein,

The air passage structure body is provided with a plurality of air passages,

The partition plate and the formed heat insulating material are overlapped and are installed in such a manner that the formed heat insulating material is in contact with the inner surface of the inner case of the refrigerating chamber,

The partition plate and the formed heat insulating material are provided with: a main air path communicating with the upper air outlet of the refrigerating chamber and guiding cool air to the upper part of the refrigerating chamber; and a plurality of sub-air passages branched from the main air passage to the left and right and communicating with a side air outlet of the refrigerating compartment to guide cool air to the left and right of the refrigerating compartment,

The partition plate extends to a position just above the fan outlet, and has a curved portion at a lower end thereof for reducing resistance of a cooling air passage.