CN112303994A

CN112303994A - Refrigerator with a door

Info

Publication number: CN112303994A
Application number: CN202010749989.1A
Authority: CN
Inventors: 井下美桃子; 市场元康; 中川雅至
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2019-07-31
Filing date: 2020-07-30
Publication date: 2021-02-02
Also published as: JP2021025664A

Abstract

The refrigerator of the present invention includes: a refrigerator main body including a storage chamber (14) having an opening on a front surface side; a first door (71) that is disposed on one of the left and right sides of the opening and is pivotally supported on the refrigerator main body so as to be rotatable; and a second door (72) that is disposed on the other of the left and right sides of the opening and is pivotally supported on the refrigerator main body so as to be rotatable. The first door (71) and the second door (72) each have a first face (321a) and a second face (321b) that are opposed when the first door (71) and the second door (72) are closed, and have a heat transport section (37) for transporting heat of outside air in the vicinity of the first face (321a) inside the first door (71) and in the vicinity of the second face (321b) inside the second door (72).

Description

Refrigerator with a door

Technical Field

The present invention relates to a refrigerator.

Background

As a conventional refrigerator, there is one that prevents condensation on the surface of the rotary partition body (see, for example, japanese patent laid-open No. 2010-249491). The refrigerator is provided with storage compartments such as a refrigerating compartment, a freezing compartment, and a vegetable compartment, which can be opened and closed by doors. In a large-sized refrigerator, a left-right split door and a rotary partition body that rotates in conjunction with opening and closing of either of the left and right doors are provided.

Disclosure of Invention

The invention provides a refrigerator which reduces the input of a heater for preventing condensation and has high energy-saving performance.

The refrigerator according to the present invention includes: a refrigerator main body including a storage compartment; the first door is pivotally supported on one side of a front opening of the storage compartment, and the second door is pivotally supported on the opposite side.

Drawings

Fig. 1 is a perspective view of a refrigerator according to embodiment 1.

Fig. 2 is a longitudinal sectional view of the refrigerator as viewed from the right side.

Fig. 3 is a perspective view showing a state where the left and right split doors of the refrigerator are opened.

Fig. 4 is a perspective view showing one of the left and right side-by-side doors of the refrigerator.

Fig. 5 is a sectional view of a main part of the left and right split doors and the rotary partition of the refrigerator.

Fig. 6 is a diagram showing the structure of the condensation prevention heater of the refrigerator.

Fig. 7A is a perspective view showing an external appearance of a rotating partition body of the refrigerator.

Fig. 7B is a rear view of the rotating partition of the refrigerator.

Fig. 8 is a sectional view of a rotating partition of the refrigerator.

Fig. 9 is an exploded perspective view of the rotating partition body of the refrigerator.

Fig. 10 is another exploded perspective view showing the rotating partition body of the refrigerator.

Description of the reference numerals

1 refrigerator main body

1a front opening

2 outer case

3 inner box

4 foaming heat insulation material

5. 6 division board

7 left-right split door

8. 9, 10, 11 doors

13 door hinge

14 Cold storage chamber (storage chamber)

15 switching room (storage room)

16 Ice-making chamber (storage chamber)

17 vegetable room (storage room)

18 freezing chamber (storage chamber)

19 Cooling chamber

20 cooler

22 frost prevention mechanism

21 Cooling fan

23 compressor

24 refrigerating compartment duct

25 freezing chamber pipeline

27 shelf

28 micro-freezing chamber

29 ice temperature fresh-keeping chamber

31 door inner frame

32 door outer peripheral frame

33 external plate

34 foamed thermal insulation material (thermal insulation material) for door

35 rotating partition body

36 display part

37 heat transport unit

38 door outer peripheral frame flange portion

46 hinge part

46a shaft support part

47 storage side outer profile component

47a, 48a open lower edge

48 outside air side outside profile part

49 shaped heat insulating member

Foaming heat insulation material for 50-degree rotating partition

52 injection hole

53 exhaust hole

54 buffer sheet

55 rotating spacer stiffener

56 claw

57. 66 holes

58 magnet

59 dewing prevention heater (heating mechanism)

61 Belt

62 bottle cap

64 Soft bag parts (middle part)

65 open pore

67. 68 double-sided adhesive

69. 70 sealing foam

71 first door

72 second door

71a, 72a gasket

100 refrigerator

321 side (face)

321a first surface

321b second side

381a, 381b 1 st flange part

382a, 382b No. 2 flange part

591 heating part (heater)

592 lead (electric wire)

593a, 593b switching site

Detailed Description

(knowledge and the like forming the basis of the present invention)

In general, a refrigerator has storage compartments such as a refrigerating compartment, a freezing compartment, and a vegetable compartment, which can be opened and closed by doors. Each storage compartment is openable and closable by a door. In a large-sized refrigerator, a door of a refrigerating chamber has a left-right split door structure. The left and right split doors are provided with a rotary partition body that rotates in conjunction with the opening and closing of either of the left and right doors. Thereby, a gap between the door end faces generated when the door is closed, and airtightness is ensured. Further, a heater is attached to the inner surface of the rotary partition body to prevent dew condensation on the surface of the rotary partition body (see, for example, japanese patent laid-open No. 2010-249491).

However, in the above-described conventional refrigerator structure, a part of heat of the heater enters the refrigerating chamber through the rotary partition. Therefore, there is a problem in that the input to the heater for preventing dew condensation on the surface of the rotary partition body is to be increased.

The present inventors have found that the above problems exist, and in order to solve these problems, they constitute the subject matter of the present invention.

The invention provides a refrigerator which can reduce input to a heater for preventing condensation of a rotary separating body and has high energy-saving performance.

The embodiments will be described in detail below with reference to the accompanying drawings. In some cases, unnecessary detailed description will be omitted. For example, a detailed description of already known contents or a repetitive description of substantially the same configuration may be omitted.

Additionally, the drawings and the following description are for a full understanding of the invention by those skilled in the art and are not intended to limit the claimed subject matter there from.

(embodiment mode 1)

Embodiment 1 will be described below using fig. 1 to 9.

[1-1. Structure ]

[1-1-1. Overall Structure of refrigerator ]

As shown in fig. 1 to 3, the refrigerator 100 according to the present embodiment includes a refrigerator main body 1 having an opening in the front. The refrigerator main body 1 is composed of a metal outer box 2, a hard resin inner box 3, and a foaming and heat insulating material 4 filled between the outer box 2 and the inner box 3. The inside of the inner box 3 is partitioned into a plurality of storage compartments described later by

partition plates

5, 6 and the like. Further, each storage compartment of the refrigerator main body 1 is provided with a door (described later) that employs the same heat insulating structure as the refrigerator main body 1, and the door can be opened and closed.

As shown in fig. 2, the storage compartment formed in the refrigerator main body 1 includes: the refrigerator includes a refrigerating compartment 14 at the uppermost part, a switching compartment 15 provided below the refrigerating compartment 14 and capable of switching temperature regions, an ice making compartment 16 provided at a lateral side thereof, and a freezing compartment 18 provided between the switching compartment 15 and the ice making compartment 16 and a vegetable compartment 17 at the lowermost part.

The refrigerating compartment 14 has left and right half doors 7. The switching compartment 15, the ice making compartment 16, the vegetable compartment 17, and the freezing compartment 18 are provided with

drawer type doors

8, 9, 10, 11, respectively.

Refrigerator main body 1 has cooling chamber 19 on the rear surface of freezing chamber 18. The cooling compartment 19 is provided therein with a cooler 20 for generating cold air and a cooling fan 21 for supplying the cold air to each storage compartment. Further, a frost prevention mechanism 22 formed of a glass tube heater or the like is provided below the cooler 20.

The cooler 20 has a refrigeration cycle in which a compressor 23, a condenser (not shown), a heat radiation pipe (not shown) for radiating heat, and a capillary tube (not shown) are annularly connected. The cooler 20 cools the inside of the cooling chamber 19 by circulating the refrigerant compressed by the compressor 23 in a refrigeration cycle.

Further, a cooling fan 21 is provided above the cooler 20. Cooling fan 21 supplies cold air in cooling chamber 19 to refrigerating chamber 14, freezing chamber 18, and vegetable chamber 17 via refrigerating chamber duct 24, freezing chamber duct 25, and vegetable chamber duct (not shown) connected to the downstream side of cooling fan 21. The cold air cools each storage chamber.

As shown in fig. 2, refrigerating compartment 14 is provided with a plurality of shelves 27 which are detachable, and the space in refrigerating compartment 14 is divided into a plurality of upper and lower spaces. Further, as shown in fig. 2, low temperature storage chambers such as a micro freezing chamber 28 and a fresh ice chamber 29 are provided in the lower portion.

The refrigerating chamber 14 is cooled to a non-freezing temperature of 1 to 5 ℃. In addition, the freezing chamber 28 in the refrigerating chamber 14 is cooled to a temperature of-2 to-3 ℃ suitable for freezing preservation, and the fresh food chamber 29 is cooled to a temperature lower than that of the refrigerating chamber 14 but slightly higher than that of the freezing chamber 28 by about 1 ℃.

[1-1-2. Structure of left and right side-by-side door ]

Next, the left and right split doors 7 will be described using fig. 3 to 6. As shown in fig. 3, the left and right split doors 7 of the refrigerating compartment 14 include a first door 71 and a second door 72. The first door 71 and the second door 72 are rotatably pivotally supported on the refrigerator main body 1 by door hinges 13, respectively.

Fig. 4 shows the first door 71 as an example. The first door 71 includes a resin door inner frame 31, a resin door outer frame 32, and a rotary partition 35. The door inner frame 31 is disposed on the rear surface of the first door 71. The door outer peripheral frame 32 constitutes an outer periphery of a side surface of the first door 71.

As shown in fig. 5, the first door 71 and the second door 72 each have a first face 321a and a second face 321b as side faces 321 that are opposite to each other in a state where the first door and the second door are closed. A heat transport unit 37 is disposed inside the door outer peripheral frame 32. The heat transfer portion 37 is held by the door outer peripheral frame flange portion 38.

As shown in fig. 5, in the present embodiment, the heat transport portion 37 has an L-shaped cross-sectional shape in the horizontal direction. The heat transfer unit 37 has a thermal conductivity higher than that of the door outer frame 32. The heat transport unit 37 is made of, for example, metal or high heat conductive resin.

A space portion surrounded by the door inner frame 31, the door outer frame 32, and an exterior panel 33 (see fig. 5) such as a glass plate constituting a door surface (a front surface of the door) is filled with a door foaming heat insulator 34 such as hard foamed urethane.

A rotary partition body 35 is provided at an end (an end on the opposite side to the end supported by the shaft) of one of the left and right split doors 7, i.e., the first door 71 which is narrow in the present embodiment. The rotary partition body 35 closes a gap formed when the door is closed between a side (first side) 321a of the first door 71 and a side (second side) 321b of the second door 72. The rotary partition body 35 is disposed along the vertical direction of the first door 71, and has a strip-like elongated shape. As shown in fig. 1, a display unit 36 for displaying an operation state of the refrigerator 100 is provided at a lower portion of the second door 72, which is wider than the second door 72.

As shown in fig. 5, the first door 71 and the second door 72 are each provided with

gaskets

71a, 72a around the door inner frame 31. The

gaskets

71a and 72a are members for closing a gap formed between the left and right split doors 7 and the refrigerator main body 1 or the rotary partitioning body 35. In the present embodiment, the

gaskets

71a, 72a are made of resin.

Inside the

gaskets

71a and 72a, the magnet 58 is disposed at a position facing the rotary partition body 35. Further, magnets 58 are disposed on the rotary partition body 35 at positions respectively opposed to the first door 71 and the second door 72.

The

seal pads

71a, 72a and the rotary partition body 35 are brought into close contact with each other by the magnetic attraction of the magnet 58 possessed by the

seal pads

71a, 72a and the magnet 58 possessed by the rotary partition body 35 to each other. Thereby, a gap formed between the rotary partition body 35 and the refrigerator main body 1 or the rotary partition body 35 is closed.

The rotating partition body 35 has a dew condensation prevention heater 59. The dew condensation preventing heater 59 is a heating mechanism for raising the temperature of air in the space S defined by the side surfaces 321(321a, 321b) of the first door 71 and the second door 72 and the rotary partition 35, which is formed when the doors are closed.

The dew condensation preventing heater 59 is provided on the storage chamber (refrigerating chamber 14) side of the rotary partition body 35, that is, on the front surface side of the rotary partition body 35 when the door is closed. The dew condensation prevention heater 59 is attached and fixed to the inner surface of the rotating partition body 35 (on the space side where the door foaming and heat insulating material 34 is filled) by a heat conductive tape 61. The belt 61 is, for example, an aluminum belt.

Next, the dew condensation preventing heater 59 will be explained. Fig. 6 is a configuration diagram of the dew condensation preventing heater 59 of the refrigerator 100 according to the present embodiment. In fig. 6, the dew condensation prevention heater 59 includes: a heating portion 591 constituted by a heater or the like, a wire 592 for supplying power to the heating portion 591, and switching

portions

593a, 593b electrically connecting the heating portion 591 and the wire 592.

The switching

portions

593a, 593b are disposed near the center of the rotary partition body 35 in the longitudinal direction (vertical direction). The heating portion 591 extends upward of the switching portion 593a along the longitudinal direction of the rotary partition 35, is folded back near the upper end of the left and right split doors 7, is disposed along substantially the entire length in the longitudinal direction of the left and right split doors 7, is folded back near the lower end of the left and right split doors 7, extends upward along the longitudinal direction of the left and right split doors 7, and is connected to the switching portion 593 b.

The lead wire 592 is arranged to extend from the switching

portions

593a, 593b to above the switching portion 593a in the longitudinal direction of the left and right split doors 7 by one wire.

More specifically, the heating section 591 includes: a portion d having a watt density of W1 and a length of L1, which is disposed on the wire 592 side of the switching portion 593 a; an inverted U-shaped portion e having a power density of W2 and a length of L2, connected to the portion d and extending upward; a portion f connected to the portion e and extending downward parallel to the portion d, having a watt density of W3 and a length of L3; a portion g connected to the portion f and provided at the switching

portions

593a, 593b, and having a watt density of W4 and a length of L4; a portion h connected to the portion g and extending downward, having a watt density of W5 and a length of L5; a U-shaped part i which is connected with the part h and is positioned at the lowest part, has the power density of W6 and the length of L6; a portion j having a power density of W7 and a length of L7, connected to the portion i, extending upward, and connected to the switching portion 593 b.

The location i of the heating portion 591 is below the top surface of the micro-freezing chamber 28 or the fresh food chamber 29 shown in fig. 2. In the longitudinal direction of the rotary partition 35, each watt density of a heater (not shown) constituting the heating portion 591 is set so that each watt density of the heater wire is set to be the highest at the lower portion of the rotary partition 35. Specifically, at least the watt density W6 is made larger than the watt densities W1 to W5 and W7.

When the dew condensation preventing heater 59 is energized, the respective portions d to j of the heating portion 591 generate heat, and the side surfaces 321 of the left and right split doors 7 are heated to a desired temperature over the entire length L. By heating the outer surface of the side 321, the air near the space S is heated. Therefore, the cold air causing dew condensation can be prevented from contacting the rotary partition body 35. This can suppress condensation on the rotary partition body 35.

The air in the vicinity of the space S is affected by the temperature of the freezer compartment 28 or the crisper compartment 29 which is disposed below the refrigerating compartment 14 and is set to a temperature lower than the refrigerating compartment temperature, and the lower portion is cooled to a temperature lower than the upper portion in the vertical direction of the side-by-side split door 7.

However, in the present embodiment, the respective watt densities of the heaters of the heating portion 591 are set such that the respective watt densities of the heater wires are highest at the lower portions of the left and right split doors 7 in the vertical direction of the second door 72 (watt densities W1-W5 and watt 7 < watt density W6), so the outer surface of the side surface 321 has a substantially uniform temperature.

Therefore, the air in the vicinity of the space S becomes substantially uniform in temperature in the vertical direction, so that the air in the vicinity of the space S can be efficiently heated. This reduces the electrical input to the dew condensation preventing heater 59, and reliably suppresses dew condensation on the rotating partition body 35.

[1-1-3. detailed Structure of rotating separator ]

Next, the rotary partition body 35 provided on the left and right split doors 7 will be described using fig. 7A to 10.

As described above, the rotary partition body 35 is provided on the first door 71 of the left and right split doors 7. Specifically, the upper and lower portions of the rotary partition body 35 are pivotally supported by the hinge member 46 on the inner surface of the door inner frame 31 of the first door 71 (see fig. 5). The rotary partition body 35 rotates in conjunction with the opening and closing of the first door 71.

As shown in fig. 8 and 9, the rotary partition body 35 mainly includes a storage chamber side outer contour member 47 and an outside air side outer contour member 48 formed of resin on the housing. The opening of the storage compartment-side outer contour member 47 is fitted into the opening of the outside air-side outer contour member 48 to form a hollow shape. The rotary partition body 35 is configured such that a molded heat insulating material 49 (see fig. 9 and 10) made of foamed styrene is fitted to the upper end portion of the hollow portion, and the remaining most part of the rotary partition body is filled with a foamed heat insulating material 50 such as foamed polyurethane as shown in fig. 8.

The rotating partition body is filled with the foamed heat insulating material 50 by a soft bag member 64, and the soft bag member 64 is an interposed member provided between the storage chamber side outer contour member 47 and the outside air side outer contour member 48 constituting the outer shell of the rotating partition body 35.

The outside air side outside member 48 is provided with a dew condensation preventing heater 59 for preventing dew condensation. As described above, the power density of the dew condensation preventing heater 59 is set according to the outer contour surface temperature from the upper portion to the lower portion.

The storage compartment-side outer contour member 47 and the outside air-side outer contour member 48 are each made of resin having low thermal conductivity. As shown in fig. 7A to 10, the storage compartment-side outer contour member 47 has an injection hole 52 for injecting foamed polyurethane formed substantially at the center in the longitudinal direction of the storage compartment-side outer contour member 47, and has exhaust holes 53 formed near the ends in the longitudinal direction. A metal rotary partition reinforcing plate 55 is provided on the inner surface of the storage compartment-side outer profile member 47.

The rotary separator reinforcing plate 55 has a plurality of holes 57 distributed over the entire area in the longitudinal direction thereof. The rotating partition body reinforcing plate 55 has a hole 66 at a portion opposed to the injection hole 52 provided in the storage compartment side outer profile member 47. Further, the rotary partition body reinforcing plate 55 has a hole 57 at a portion opposite to the exhaust hole 53.

As shown in fig. 10, a ring-shaped sealing foam 69 is disposed between the injection hole 52 of the storage compartment-side outer contour member 47 and the hole 66 of the rotating separator reinforcing plate 55. Further, a rectangular sealing foam 70 is disposed between the air vent 53 and the hole 57.

In the soft bag member 64 interposed in the space between the storage chamber side outer contour member 47 and the outside air side outer contour member 48 constituting the outer shell of the rotary partition body 35, opening holes 65 are provided so as to face the injection holes 52 of the storage chamber side outer contour member 47 and the holes 66 of the rotary partition body reinforcing plate 55.

The soft bag member 64 is fixed to the rotary separator reinforcing plate 55 via a double-sided adhesive 67 disposed between the hole 66 of the rotary separator reinforcing plate 55 and the opening hole 65 of the soft bag member 64. Further, the vicinity of the end portion of the soft bag member 64 is also fixed to the rotary separator reinforcing plate 55 by a double-sided adhesive 68.

The double-sided adhesive 67 has a void in the center, and when the foamed heat insulating material 50 for a rotating partition is filled from the filling hole 52, the foamed heat insulating material 50 for a rotating partition can be reliably filled in the soft bag member 64.

Further, an opening hole (not shown) for discharging air is disposed at an end portion of the soft bag member 64, and unnecessary air at the time of filling and foaming the foaming heat insulator 50 for the rotating partition can be discharged to the outside from the air discharge hole 53 of the storage chamber side outer profile member 47 through the sealing foam 70.

The upper end of the rotary partition body 35 is covered with a cover 62 (see fig. 9), and the lower end is closed by fitting the open lower edge 47a of the storage compartment-side outer contour member 47 and the open lower edge 48a of the outside air-side outer contour member 48.

The buffer sheet 54 is attached to the storage compartment-side outer contour member 47 so as to cover at least the injection hole 52 and the exhaust hole 53. After the rotary partition body 35 is filled with the foamed heat insulating material 50 for the rotary partition body and foamed, a buffer sheet 54 is attached to the storage compartment side surface of the storage compartment-side outer profile member 47 to close the injection hole 52 and the exhaust hole 53.

[1-2. actions ]

With respect to the refrigerator 100 of embodiment 1 configured as described above, the operation and action thereof will be described below.

The refrigerant compressed by the compressor 23 constituting the refrigeration cycle dissipates heat in the condenser, is reduced in pressure in the capillary tube, absorbs heat in the cooler 20, and returns to the compressor 23 again. The cold air generated by cooler 20 is supplied from cooling fan 21 to refrigerating room 14, switching room 15, ice-making room 16, vegetable room 17, and freezing room 18 in refrigerator main body 1 through refrigerating room duct 24 and freezing room duct 25, and cools each of the storage rooms to a predetermined temperature.

In the present embodiment, the rotary partition body 35 includes

gaskets

71a and 72a, and a dew condensation prevention heater 59 that heats the left and right split doors 7. Therefore, the air in the gap between the door end faces of the first door 71 and the second door 72, which is generated when the left and right split doors 7 are closed, is heated. Therefore, the cold air does not contact the rotary partition bodies 35, and dew condensation on the rotary partition bodies 35 can be suppressed.

As shown in fig. 5, the gap between the second door 72 and the rotary partition body 35 on the side where the rotary partition body 35 is not provided is larger than the gap between the first door 71 and the rotary partition body 35 on the side where the rotary partition body 35 is provided. Therefore, the temperature of the side 321(321b) of the second door 72 easily becomes lower than the temperature of the side 321(321a) of the first door 71.

Therefore, in the present embodiment, since the dew condensation preventing heater 59 is provided in the second door 72 which tends to be low in temperature, the cold air which contacts the rotary partition body 35 can be heated efficiently.

The second door 72 also has a condensation prevention heater 59 that heats a substantially half area of the side surface 321(321b) inside the refrigerator. Therefore, the air in the area close to the rotary partition 35 in the space S defined by the side 321 of each of the first and

second doors

71 and 72 and the rotary partition 35 can be heated effectively.

Also, the heating portion 591 is divided into a plurality of portions, and the power density is different for each portion. Therefore, the air in the gap between the end surfaces of the first door 71 and the second door 72 can be efficiently heated according to the temperature distribution within the refrigerating compartment 14. This reduces the electric input to the dew condensation preventing heater 59.

In the present embodiment, the dew condensation prevention heater 59 is provided over substantially the entire length of the rotary partition body 35 in the longitudinal direction, and the respective power densities of the heater wires are set to be the highest at the lower portion of the rotary partition body 35.

However, for example, the dew condensation preventing heater 59 may be provided in a substantially half area of the lower side of the rotary partition body 35 in the longitudinal direction. Accordingly, the amount of heating of the lower portion of the rotary partition body 35 can be increased without finely setting the respective power densities of the heater wires. Therefore, an inexpensive heater can be used as the dew condensation prevention heater 59.

The thermal conductivity of at least the side surface 321 of the door outer peripheral frame 32 is higher than the thermal conductivity of the outer shell (the storage compartment-side outer contour member 47 or the outside air-side outer contour member 48) of the rotary partition 35 or the thermal insulation material (the molded thermal insulation member 49 or the foamed thermal insulation material 50 for the rotary partition). This enables the heat of the condensation prevention heater 59 to be efficiently transmitted to the side surface 321. Therefore, the air contacting the rotary partition 35 can be heated effectively.

As shown in fig. 5, in the present embodiment, a door outer frame flange portion 38 that holds the heat transport portion 37 is provided on a side surface 321 (first surface 321a, second surface 321b) of the door outer frame 32 that faces each other when the first door 71 and the second door 72 are closed. The door outer frame flange portions 38 are provided integrally with the door outer frame 32 at both end portions of the door outer frame 32, respectively.

The outer panel 33 is held by the door outer frame flange 38 (1

st flange

381a, 381b) at the outer side of the door outer frame flange 38 disposed at one position on the front surface side. The heat transport portion 37 extends to the vicinity of the door outer peripheral frame flange 38 (2

nd flange portions

382a, 382b) disposed at the other position on the rear surface side.

This enables the end portions of the

gaskets

71a and 72a, which prevent the leakage of cold air, to be heated efficiently.

The heat transport portion 37 may be in contact with the door outer peripheral frame flange portion 38 (the 2

nd flange portions

382a, 382b), or a gap may be provided between the heat transport portion 37 and the door outer peripheral frame flange portion (the 2

nd flange portions

382a, 382 b).

The heat transport portion 37 may be in contact with the exterior plate 33 via the 1

st flange portions

381a and 381 b. This enables the heat transport unit 37 to efficiently absorb heat from the outside air.

Further, when the heat transport unit 37 and the 2 nd flange 382 do not come into surface contact with each other, such as when there is a gap between the heat transport unit 37 and the 2 nd flange 382, it is possible to suppress a part of the heat transport unit 37 from being transmitted to the storage compartment through the rotary partition body 35 that closes the gap between the side surfaces 321 of the first door 71 and the second door 72.

Since the heat transport portion 37 provided inside the door outer frame 32 extends to the vicinity of the door outer frame flange portion 38 (the 2

nd flange portions

382a, 382b), heat of the space (outside air) provided in the refrigerator main body 1 can be transferred to the

gaskets

71a, 72 a. This reduces the input of the dew condensation preventing heater 59.

In the present embodiment, the heat transport unit 37 is held by the 1

st flange portions

381a and 381 b. Specifically, the heat transport portion 37 has a plurality of openings in the vertical direction. Further, the 1

st flange portions

381a, 381b have a plurality of claw portions corresponding to the plurality of openings. The heat transport portion 37 can be held on the door outer frame 32 by fitting the plurality of openings of the heat transport portion 37 to the plurality of claw portions of the 1

st flange portions

381a, 381 b. The holding structure of the heat transport unit 37 is not limited to the above-described structure, and various methods can be used.

The rotary partition 35 is configured by filling a space between the storage chamber side outer contour member 47 and the outside air side outer contour member 48 with the foamed heat insulating material 50 for rotary partition via a soft bag member 64 as an interposing member. Therefore, the heat insulating performance of the rotary partition body 35 is much higher than the case where the heat insulating material is made of foamed styrene. Therefore, the heat of the outside air to be taken into the refrigerating chamber 14 via the rotary separator 35 can be effectively suppressed.

In the present embodiment, the rotary partition body 35 is described as being configured by filling the interior of the housing (the storage compartment-side outer contour member 47 or the outside air-side outer contour member 48) with the foamed heat insulating material 50 for a rotary partition body via the soft bag member 64, but may be configured by disposing foamed styrene in the interior of the housing via the soft bag member 64.

The rotary partition body 35 is vertically and long filled with a foamed heat insulating material 50 for the rotary partition body. At this time, in the conventional structure, the foaming heat insulator 50 for the rotating partition is likely to leak from the portion where the storage chamber side outer profile member 47 and the outside air side outer profile member 48 are fitted to each other due to the foaming pressure.

However, in the present embodiment, the rotary partition body 35 is configured by filling the foamed heat insulating material 50 for rotary partition body between the storage chamber side outer profile member 47 and the outside air side outer profile member 48 through the soft bag member 64 as an intervening member. Therefore, the foamed heat insulating material 50 for the rotating partition can be reliably suppressed from leaking from the portion where the storage compartment side outer profile member 47 and the outside air side outer profile member 48 are fitted to each other. This can provide the rotating partition body 35 having improved heat insulation properties.

Further, the soft bag member 64 as an interposing member disposed between the storage chamber side outer peripheral member 47 and the outside air side outer peripheral member 48 can moderate the adhesive strength between the foamed heat insulator 50 for the rotary partition and the storage chamber side outer peripheral member 47 and the outside air side outer peripheral member 48 constituting the rotary partition 35. Therefore, warping or deformation due to a temperature difference between the cold and hot temperatures of the rotary partition body 35 can be suppressed.

Further, a ring-shaped seal foam 69 is disposed between the injection hole 52 of the storage compartment side outer contour member 47 and the hole 66 of the rotary partition body reinforcing plate 55, and a rectangular seal foam 70 is disposed between the exhaust hole 53 and the hole 57. The storage compartment-side outer profile member 47 and the rotary partition reinforcing plate 55 are fixed by a claw 56 (see fig. 9). Therefore, the soft bag member 64 can more reliably improve the filling property of the foamed heat insulating material for a rotating partition 50 into the rotating partition 35.

In addition, in the soft bag member 64 interposed in the space between the storage chamber side outer contour member 47 and the outside air side outer contour member 48 constituting the outer shell of the rotary partition body 35, opening holes 65 are provided so as to face the injection holes 52 of the storage chamber side outer contour member 47 and the holes 66 of the rotary partition body reinforcing plate 55. Further, the soft bag member 64 is fixed to the rotary separator reinforcing plate 55 via a double-sided adhesive 67 disposed between the hole 66 of the rotary separator reinforcing plate 55 and the opening hole 65 of the soft bag member 64. Therefore, the soft bag member 64 can more reliably improve the filling property of the foamed heat insulating material for a rotating partition 50 into the rotating partition 35.

In addition, the upper and lower portions of the rotary partition 35 are pivotally connected to the first door 71 by hinge members 46. Further, a molded heat insulating member 49 (see fig. 10) made of expanded styrene is provided at the setting portion of the hinge member 46. In this way, the vicinity of the shaft support portion 46a of the hinge member 46 having a complicated structure is constituted by the shaped heat insulating member 49, so that the space between the storage compartment side outer profile member 47 and the outside air side outer profile member 48 can be simplified. Thus, the soft bag member 64 can be formed in a simple rectangular shape. Therefore, leakage and insufficient filling of the foamed heat insulating material 50 for the rotary partition near the hinge member 46 can be eliminated, and the rotating operation of the rotary partition 35 can be stabilized.

Further, since the rotary partition body 35 is configured to be provided with the rotary partition body reinforcing plate 55 made of metal on the inner surface of the storage room side outer profile member 47, it is possible to prevent the deformation of the rotary partition body 35 due to the thermal contraction of the foamed heat insulating material 50 for the rotary partition body. Therefore, by further improving the sealing property when the first door 71 and the second door 72 are closed, the energy saving property can be further improved.

Further, since the foamed heat insulating material 50 for the rotary partition in the rotary partition 35 is in contact with the rotary partition reinforcing plate 55 through the soft bag member 64, the foamed heat insulating material 50 for the rotary partition and the rotary partition reinforcing plate 55 are indirectly in contact with each other. Therefore, it is possible to suppress the deformation of the rotating separator reinforcing plate 55 directly caused by the thermal contraction of the foamed heat insulating material for a rotating separator 50.

The rotating partition body reinforcing plate 55 includes holes facing the injection hole 52 and the exhaust hole 53 for injecting the foamed heat insulating material 50 for the rotating partition body provided in the storage compartment-side outer profile member 47, and the rotating partition body reinforcing plate 55 has a plurality of holes 57 in the longitudinal direction. Therefore, the foamed heat insulating material 50 for the rotating partition can be injected into the soft bag member 64 from the injection hole 52 provided in the storage chamber side outer contour member 47, and the weight of the rotating partition reinforcing plate 55 can be reduced.

Thereby, since the rotary partition body 35 itself can be made lighter in weight, the rotating action of the rotary partition body 35 is stabilized, and the inertial force of the rotary partition body 35 generated during rotation is reduced, thereby further reducing collision noise and the like.

In the present embodiment, the rotary partition body 35 has a square shape. Thereby, it is possible to exhibit a good heat insulation effect on the entire left and right sides of the rotary partition body 35 and to enhance the heat insulation effect.

In the present embodiment, the insertion member inserted between the storage chamber side outer contour member 47 and the outside air side outer contour member 48 constituting the casing of the rotary partition body 35 is described by the soft bag member 64, but the insertion member is not limited thereto. For example, the interposing member may be formed by blow molding a member, coating a mold release material, attaching a mold release tape, or the like.

In the present embodiment, the storage chamber side outer contour member 47 and the outside air side outer contour member 48 are formed of resin having low thermal conductivity, and the magnet 58 is embedded in the rotating partition body 35, but the structure of the rotating partition body 35 is not limited to this. For example, a magnetized metal plate may be provided inside the rotary separator 35 instead of the magnet 58. Furthermore, the outside-air-side outer profile member 48 may be made of a metal plate.

In these cases, the soft bag member 64 can fill the arrangement space portion of the magnet 58 inside the rotary partition 35 with the foamed heat insulating material 50 for a rotary partition. Therefore, the heat insulation property can be improved, and the strength of the rotary partition body 35 can be increased.

Further, by using an iron plate for the storage compartment-side outer contour member 47, the partition wall reinforcing plate 55 provided in the storage compartment-side outer contour member 47 is not necessary, or the partition wall reinforcing plate 55 can be made thin, and an optimum cost balance between heat insulation and strength can be achieved.

In the present embodiment, the molded heat insulating material 49 made of expanded styrene is provided near the hinge member 46 at the upper end of the rotary partition body 35, but the present invention is not limited to this. For example, the foamed heat insulating material 50 for the rotary partition may be filled in almost the entire region inside the rotary partition 35 via the soft bag member 64 in the vicinity of the hinge members 46 at the upper and lower end portions of the rotary partition 35.

In this case, the effects of improving the heat insulating performance, improving the strength can be obtained by increasing the filling ratio of the foamed polyurethane, and the effect of cost reduction can be obtained by eliminating the need for the molded heat insulating member 49 made of foamed styrene. In the present embodiment, the molded heat insulating material 49 is the foamed heat insulating material 50 for the rotating partition, but the present invention is not limited thereto.

[1-3. Effect, etc. ]

As described above, the refrigerator 100 of the present embodiment includes the refrigerator main body 1 having the refrigerating chamber 14 (storage chamber), and the first door 71 and the second door 72 that are split left and right. The first door 71 is pivotally supported on one side of the front opening 1a of the storage compartment in a rotatable manner, and the second door 72 is pivotally supported on the opposite side in a rotatable manner.

Inside the side surfaces (faces) 321 that face each other when the first door 71 and the second door 72 are closed, a heat transport portion 37 for transporting heat of outside air is provided. Thereby, the heat of the outside air is transported inside the first door 71 and the second door 72 when closed. Therefore, since the heat of the high-temperature outside air can be transferred to the low-temperature portion, condensation on the rotary partition body 35 and the

gaskets

71a and 72a can be suppressed. Further, the input of the dew condensation preventing heater 59 can be reduced.

Each of the first door 71 and the second door 72 includes an exterior panel 33, a door inner frame 31, a door outer frame 32 formed on the outer periphery of each of the first door 71 and the second door 72, and a door foam heat insulator (heat insulator) 34 provided inside. The heat transport unit 37 is provided on the surface of the first door 71 facing the second door 72 when the door is closed, that is, inside the side surface 321 of each door outer peripheral frame 32. Further, the door outer peripheral frame 32 is formed of a resin member. Thus, when the heat of the outside air is transmitted, the heat loss in the gap between the first door 71 and the second door 72 can be reduced.

The side surface 321 of the door outer frame 32, which is the surface facing each other when the first door 71 and the second door 72 are closed, has a door outer frame flange portion 38 that holds the heat transport portion 37. Accordingly, the exterior plate 33 is held outside the door outer frame flange portion 38, and the heat transport portion 37 extends to the vicinity of the door outer frame flange portion 38.

This enables the end portions of the

gaskets

71a and 72a, which prevent the leakage of cold air, to be heated efficiently. Further, it is possible to suppress a part of the heat transport portion 37 from being transferred to the storage compartment through the rotary partition body 35 that closes the gap between the side 321 of the first door 71 and the side 321 of the second door 72.

As described above, the present invention suppresses dew condensation on the rotating separators by using the heat of the outside air transferred by the heat transport portion. This reduces the input to the dew condensation preventing heater and improves the energy saving performance. Therefore, the present invention can be applied to various types and sizes of refrigerators having a rotating partition body, such as home and commercial uses.

Claims

1. A refrigerator, comprising:

a refrigerator main body including a storage chamber having an opening on a front surface side;

a first door that is disposed on one of left and right sides of the opening portion and is pivotally supported to the refrigerator main body so as to be rotatable; and

a second door that is disposed on the other of the left and right sides of the opening and is pivotally supported by the refrigerator main body so as to be rotatable,

the first door and the second door each have first and second sides that are opposed when the first door and the second door are closed,

the first door has a heat transfer portion for transferring heat of outside air in the vicinity of the first surface and the second surface.

2. A refrigerator as claimed in claim 1, wherein:

the first door and the second door each include an exterior panel disposed on a front surface, a door inner frame disposed on a rear surface, a door outer frame constituting an outer periphery of a side surface, and a heat insulating material disposed inside,

the first face is constituted by the door outer peripheral frame of the first door, the second face is constituted by the door outer peripheral frame of the second door,

the door outer peripheral frame of the first door and the door outer peripheral frame of the second door are resin members.

3. A refrigerator as claimed in claim 2, wherein:

the door outer peripheral frame of the first door and the door outer peripheral frame of the second door each have a 1 st flange portion disposed on a front surface side and a 2 nd flange portion disposed on a rear surface side,

the heat transport portion is held by the 1 st flange portion, the exterior plate is held by a front surface of the 1 st flange portion, and the heat transport portion extends to a vicinity of the 2 nd flange portion.

4. A refrigerator as claimed in claim 3, wherein:

the heat transport portion is in contact with the exterior panel via the 1 st flange portion.