TWI400417B - Refrigerator - Google Patents

Description

refrigerator

The present invention relates to a refrigerator having improved heat blocking configuration around a door that prevents heat leakage from the periphery of an opening of a refrigerator.

In recent years, in order to reduce the power consumption of the refrigerator, not only cooling control but also various technical measures have been studied for the heat insulating structure of the refrigerator main body. Among them, since a large proportion of the heat leakage from the storage chamber is leakage from the gap sealing portion around the door around the opening portion of the refrigerator, it is required to further improve the configuration of the amount of heat leakage.

Therefore, for example, there is a configuration in which a guide body for rectifying and lowering the cold air supplied into the freezer compartment and falling in the gap between the freezer compartment container and the door is provided on the door side of the freezer compartment. In this way, the cold air current flowing in the gap is prevented from reaching the gap seal side around the door, and energy loss due to heat leakage or condensation at a gap seal portion around the door or the like is prevented (Patent Document 1).

[Advanced technical literature]

[Patent Literature]

Patent Document 1: Japanese Patent Laid-Open Publication No. 2006-78025

However, in the configuration of Patent Document 1, although the cold air is rectified to the lower side of the door, the cold airflow cannot be sufficiently prevented from reaching the gap sealing portion around the door. Therefore, in order to reduce heat leakage from the gap seal portion around the door to reduce the power consumption of the refrigerator, an improved structure capable of further reducing the cold air flow to the gap seal portion around the door is required.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a refrigerator which can reduce the amount of cold air flowing to a gap sealing portion around a door of a refrigerator by a simple configuration, thereby reducing heat leakage and reducing power consumption. Condensation at a gap seal or the like around the door can be prevented.

In order to achieve the object, a refrigerator of the present invention includes: a storage compartment which is cooled by a cold air supply; a door that opens or closes a front surface opening of the storage compartment; and a gasket a peripheral portion of the door facing the inner surface of the storage chamber is in contact with the periphery of the front surface opening portion of the storage chamber, and seals between the door and the periphery of the front surface opening portion of the storage chamber; a cold air sealing plate installed at least at a lower portion of the inner surface of the door surrounded by the gasket to protrude along the gasket and protrude from the door The inner bottom of the storage compartment extends toward the inner side.

[Effects of the Invention]

According to the refrigerator of the present invention, the cold air sealing plate is used to reduce the amount of cold air flowing to the gap seal portion (seal side) around the door, whereby heat leakage around the door can be reduced, so that power consumption can be reduced.

Further, since it is possible to suppress the cold air in the storage chamber from cooling the gap seal portion around the door, there is an effect of preventing dew condensation at the gap seal portion or the like around the door.

Further, since the cold air sealing plate is formed separately from the door, the thickness of the cold air sealing plate can be made thinner than in the case where the portion corresponding to the cold air sealing plate is integrally formed inside the door, and the inner volume of the case can be enlarged.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

(First embodiment)

Hereinafter, a first embodiment of the present invention will be described with reference to Figs. 1 to 4 .

First, in FIG. 4, the heat insulating box 2 of the refrigerator main body 1 is formed by filling the foaming heat insulating material 2c between the outer case 2a made of a thin steel plate and the inner case 2b made of plastic.

Inside the refrigerator main body 1, a refrigerating chamber 3, a vegetable compartment 4, an ice making compartment 5, and a small freezing compartment (not shown) are provided from the top to the bottom, and an ice making compartment 5 and a small freezing compartment (not shown) The display is arranged side by side, and the freezer compartment 6 is disposed at the lowermost portion. Among them, the refrigerating compartment 3 and the vegetable compartment 4 are storage compartments in which the temperature in the tank is controlled to a refrigerating temperature space of 1 to 4 ° C and both constitute a refrigerating temperature zone.

Since these refrigerating compartments 3 and vegetable compartments 4 are storage compartments of the same refrigerating temperature zone, they are divided up and down by a partition plate 7 which is basically formed of synthetic resin. The ice making compartment 5, the small freezing compartment, and the freezing compartment 6 of the other storage compartments constitute a storage compartment of the freezing temperature zone. Further, the small freezer compartment may be a temperature switching chamber that can be switched by the user to the set temperature.

The vegetable compartment 4 in the lower portion of the refrigerating temperature zone and the ice making compartment 5 and the small freezing compartment in the freezing temperature zone directly below the vegetable compartment 4 are partitioned by the insulating partition wall 8.

The refrigerating compartment 3 is opened or closed by a transversal rotatable door 9, and the other vegetable compartment 4, the ice making compartment 5, the small freezing compartment and the freezing compartment 6 are opened by the pull-out doors 10, 11, 12, respectively. Or close. In the ice making chamber 5, an automatic ice making device 14 including an ice making tray 13 is disposed.

A condenser 15 for refrigerating is disposed on the lower portion of the lower portion of the refrigerating compartment 3, and a fan 16 for refrigerating is disposed on the back of the vegetable compartment 4, and the refrigerating fan 16 is configured by the refrigerating condenser The cooled cold air is supplied to the storage compartments of the refrigerating temperature zone, that is, the refrigerating compartment 3 and the vegetable compartment 4, and the cold air is circulated.

A duct 17 is provided on the rear surface of the refrigerating compartment 3, and cold air cooled by the refrigerating condenser 15 and transported by the refrigerating fan 16 flows through the cold duct 17. A plurality of cold air ejection ports 18 are formed in the cold air duct 17, and cold air passing through the cold air duct 17 is sprayed from the cold air ejection port 18 into the refrigerating chamber 3. The cold air sprayed into the refrigerating compartment 3 is supplied to the vegetable compartment 4.

Further, a freezing condenser 19 is disposed on the back of the freezing compartment 6, and a freezing fan 20 is disposed on the back of the ice making compartment 5 and the small freezing compartment, and the freezing fan 20 is cooled by the freezing condenser 19. The cold air is supplied to the storage compartment of the freezing temperature zone, that is, the ice making compartment 5, the small freezing compartment, and the freezing compartment 6, and the cold air is circulated.

In the common rear surface of the ice making compartment 5, the small freezing compartment, and the freezing compartment 6, a plurality of cold air ejection ports 21 are provided at positions near the freezing fan 20, and a cold air suction port is provided at a position below the freezing compartment 6. 22 and air-conditioning duct 23.

The cold air sucked from the cold air suction port 22 passes through the cold air duct 23 and is sent to the freezing condenser 19, and then is discharged from the discharge port 21 to the ice making chamber 5, the small freezing compartment, and the freezing compartment 6 by the freezing fan 20. A freezer compartment container 24 is provided in the freezing compartment 6. A vent 25 is provided on the side of the freezer compartment container 24.

A machine room 26 is formed at the rear bottom of the refrigerator main body 1, and a compressor 27 of a refrigeration cycle is disposed therein. The compressor 27 is shared by the refrigeration condenser 15 and the refrigeration condenser 19. A support leg 28 is attached to the lower side of the front portion of the refrigerator main body 1.

1 is a longitudinal sectional side view of a gap sealing portion around a freezing chamber door 12, and FIG. 2 is a cross-sectional plan view of the gap sealing portion. As shown in FIG. 1 and FIG. 2, the door 12 is configured such that an outer panel 30 is disposed on the front side of the sash 29 forming the outer frame, and an inner panel 31 facing the freezer compartment 6 is disposed on the rear side, and A foamed heat insulating material 32 is filled between the outer panel 30 and the inner panel 31.

A gap is formed between the freezer compartment container 24 and the inner surface of the freezer compartment 6 and the door 12. However, as shown in FIG. 4, the upper end protruding edge 24a of the freezing compartment container 24 is brought into contact with the inner panel 31 of the door 12, thereby The cold air discharged from the cold air discharge port 21 does not directly flow into the gap G between the inner panel 31 and the freezer compartment container 24 from above.

A mounting groove 33 is provided at a peripheral portion of the inner panel 31 of the freezing chamber door 12, and a magnetic gasket 34 which is a void seal is attached to the mounting recess 33.

When the door 12 is closed, the magnetic portion 35 of the magnetic gasket 34 is attracted to the front surface of the opening of the steel outer casing 2a around the opening of the front surface of the freezing chamber 6, whereby the door 12 and the outer box are The gap of 2a is sealed.

Inside the foamed heat insulating material 2c, a refrigerant pipe 36 is disposed at a position outside the magnetic gasket 34, and a high-temperature refrigerant discharged from the compressor 27 of the refrigeration cycle flows through the refrigerant pipe 36.

The refrigerant pipe 36 transfers heat to the outer casing 2a of the steel sheet, thereby preventing the periphery of the opening of the front surface of the outer casing 2a from becoming low temperature and allowing the water droplets to adhere to the surface.

The surface of the freezing compartment door 12 facing the freezing compartment 6, that is, the inner panel 31, is integrally formed at substantially the entire lower side and the substantially lower half of the left and right sides of the periphery of the portion surrounded by the magnetic sealing pad 34. Projecting portions 37, 38 are protruded from the ground.

Sealing fins (fins) 39 are attached to the lower portion of the lower protruding portion 37 and the outer portion of the protruding portion 38 along the left and right sides. The seal fin 39 includes two soft fins 39b, 39c that protrude from the front and rear sides of the mounting portion 39a of the protruding portions 37, 38.

The front end portions of the front and rear soft fins 39b and 39c are gently brought into contact with the front bottom portion and the left and right inner front portions of the freezing chamber 6, and the space between the freezing chamber 6 and the magnetic gasket 34 is separated into two independent portions. Space.

A lower cold air sealing plate 40 and a side cold air sealing plate 41 are attached to the front end portions of the protruding portions 37 and 38 (see FIGS. 3(a) and 3(b)). The lower cold air sealing plate 40 and the side cold air sealing plate 41 are fitted to the mounting grooves 42 formed at the front end portions of the protruding portions 37 and 38 by fitting the base portions of the lower cold air sealing plate 40 and the side cold air sealing plate 41, respectively. 43 is attached, and the projections 42a and 43a (refer to Figs. 1 and 2) formed on the inner surfaces of the mounting grooves 42, 43 are engaged with the base formed at the lower cold sealing plate 40 and the side cold sealing plate 41. The holes 40a and 41a prevent the lower cold air sealing plate 40 and the side cold air sealing plate 41 from coming off.

The lower cold air sealing plate 40 and the side cold air sealing plate 41 installed in this manner can be forcibly removed. In a state where the lower cold air sealing plate 40 and the side cold air sealing plate 41 are attached to the freezing chamber door 12, the inner surface of the freezing chamber 6, that is, the inner bottom surface and the left and right inner side surfaces, are along the inner side of the freezing chamber door 12. It extends to the back side of the freezing compartment 6.

The side cold air sealing plate 41 has a rectangular plate shape, but the lower cold air sealing plate 40 is formed in a curved shape, and the lower cold air sealing plate 40 includes a mounting plate portion 40b forming a base portion of the engaging hole 40a, and a front end level The plate portion 40c and the inclined plate portion 40d between the mounting plate portion 40b and the horizontal plate portion 40c.

Further, the upper surface of the protruding portion 37 along the lower side of the inner panel 31 is inclined, and the inclination of the inclined plate portion 40d becomes substantially the same as the inclined upper surface 37a of the protruding portion 37, so that the inclination of the protruding portion 37 is inclined The surface 37a is connected to the inclined plate portion 40d of the lower cold air sealing plate 40 to be substantially the same surface.

Further, due to the presence of the inclined plate portion 40d, the horizontal plate portion 40c approaches the inner bottom surface of the freezing chamber 6, thereby narrowing the gap H with the inner bottom surface of the freezing chamber 6.

Next, the effect of the refrigerator having the heat blocking configuration will be described.

As described above, the cold air discharged from the cold air discharge port 21 does not directly flow into the gap G between the inner panel 31 of the freezing compartment door 12 and the freezing compartment container 24 from above, but cold air is present in the gap G. The cold air in the gap G naturally drops in the gap G.

By the side cold sealing plate 41 attached to the left and right sides of the inner panel 31, the cold air which has fallen in the gap G is prevented from diffusing to the left and right side peripheral portions of the door 12, and is lowered toward the bottom side of the freezing compartment 6.

The cold air which descends from above the freezing chamber 6 to the lower cold air sealing plate 40 is along the inclined upper surface 37a of the protruding portion 37 which is connected to substantially the same surface and the inclined plate portion 40d of the lower cold air sealing plate 40 at the lower cold air sealing plate The upper side of 40 flows, thereby becoming a flow toward the back side of the freezing compartment 6.

By the flow, it is prevented from flowing to the side of the magnetic gasket 34 when the cold air falls to the bottom surface of the freezing compartment 6, and the gap H between the horizontal plate portion 40c of the lower cold air sealing plate 40 and the bottom surface of the inner casing 2b is narrowed, so that The amount of cold air flowing from the gap H to the side of the magnetic gasket 34 is reduced.

When cold air flows from the gap H to the magnetic seal 34 side, the cold airflow is prevented from being directed to the magnetic seal 34 side by the fins 39b, 39c of the sealing fin 39.

Moreover, heat blockage can be effectively performed due to the existence of two separate sealed spaces formed by the fins 39b and 39c. As a result, heat leakage around the freezing compartment door 12 can be reduced, so that power consumption can be reduced.

In addition, since the steel outer casing 2a or the magnetic gasket 34 that faces the opening between the freezing compartment door 12 and the support leg 28 is cooled by the cold air from the freezing compartment 6, the magnetic property around the door 12 is prevented. The effect of condensation on the surface of the gasket 34 or the outer casing 2a.

Since the lower cold air sealing plate 40 and the side cold air sealing plate 41 are provided separately from the freezing chamber door 12, the portion corresponding to the lower cold air sealing plate 40 and the side cold air sealing plate 41 is integrally formed with the inner plate 31 of the door 12. In contrast, the thickness of the cold air sealing plate 40 can be made thinner, whereby the inner volume of the case can be enlarged.

That is, the inner panel 31 of the freezing compartment door 12 is formed of a thin plastic plate, so that when the lower cold air sealing plate 40 and the side cold air sealing plate 41 are integrally formed on the inner panel 31, the protruding portion 37 must be formed. Similarly, in the same manner, 38, the foamed heat insulating material 32 is filled inside to form a thick portion to increase the strength.

If the lower cold air sealing plate 40 and the side cold air sealing plate 41 are thickened in this way, the inner volume of the freezing chamber 6 is reduced, or the freezing chamber container 24 needs to be slightly miniaturized so that the lower cold air sealing plates 40 and the side The cold air sealing plate 41 does not come into contact with the freezing compartment container 24 or the like, and the food storage amount of the freezing compartment 6 is reduced.

However, in the present embodiment, the lower cold air sealing plate 40 and the side cold air sealing plate 41 are formed of a thick plastic plate, whereby the problem of reducing the food storage amount of the freezing compartment 6 as described above does not occur. .

(Second embodiment)

In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted, and only the different portions will be described. .

The heat blocking of the gap sealing portion around the freezing chamber door 12 of the second embodiment is such that, as shown in FIG. 5, the heat insulating sealing material is adhered to the surface of the lower cold air sealing plate 40 on the side of the freezer compartment container 24. (Heat insulation layer) 44, similarly, not shown, but in the freezer compartment of the side cold air sealing plate 41 The heat insulating sealing material 44 is also adhered to the surface of the container 24 side.

Thereby, it is possible to prevent the lower cold air sealing plate 40 and the side cold air sealing plate 41 from being cooled by themselves, and this cooling heat is transmitted in the plate thickness direction to prevent the air on the side of the magnetic sealing pad 34 from being cooled, thereby further reducing heat leakage. .

(Third embodiment)

Fig. 6 shows a third embodiment of the present invention, and in the third embodiment, the same portions as those in the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted, and only the different portions will be described.

The heat blocking of the gap sealing portion around the freezing chamber door 12 of the third embodiment is such that, as shown in Fig. 6, a soft flexible gasket (packing) is attached to the front end portion of the lower cold air sealing plate 40. 45, when the freezing compartment door 12 is closed, the liner 45 approaches the inner bottom surface of the freezing compartment 6 (there is a slight gap H).

The gasket 45 may also be in contact with the inner (bottom) surface of the freezing compartment 6. Further, in the present embodiment, this case is expressed as being close even if there is a slight gap H.

Similarly, although not shown, a pad 45 is attached to the front end portion of the side cold air sealing plate 41, and when the freezing chamber door 12 is closed, the pad 45 is close to the side of the inner case 2b of the heat insulating box 2. .

In this manner, the gap between the lower cold air sealing plate 40 and the side cold air sealing plate 41 and the inner surface of the freezing chamber 6 is narrowed by the spacer 45, so that the lower peripheral portion and the left and right side peripheral portions of the flow door 12 can be further reduced. The amount of cold air on the side of the magnetic gasket 34. Further, the present invention is not limited to the embodiments shown in the drawings and the drawings, and may be expanded or modified as described below.

It can also be applied to the gap sealing portion around the door of the refrigerating compartment 3, the vegetable compartment 4, the ice making compartment 5, and the like.

The heat insulating sealing material 44 is not limited to the surface of the lower cold air sealing plate 40 and the side cold air sealing plate 41, and may be provided on the back surface or on both sides.

Both the heat insulating sealing material 44 and the gasket 45 may be attached to the lower cold air sealing plate 40 and the side cold air sealing plate 41.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

1. . . Refrigerator body

2. . . Insulation box

2a. . . Outer box

2b. . . Inner box

2c. . . Foam insulation

3. . . Cold room

4. . . Vegetable room

5. . . Ice making room

6. . . Freezer (storage room)

7. . . Spacer

8. . . Insulating partition

9, 10, 11, 12. . . door

13. . . Ice tray

14. . . Automatic ice making device

15. . . Refrigeration condenser

16. . . Refrigeration fan

17. . . Air duct

18. . . Cold air outlet

19. . . Freezer condenser

20. . . Freezing fan

twenty one. . . Cold air outlet

twenty two. . . Air inlet

twenty three. . . Air duct

twenty four. . . Freezer compartment

24a. . . Upper end edge

25. . . Vent

26. . . Mechanical room

27. . . compressor

28. . . Supporting foot

29. . . window frame

30. . . Outer panel

31. . . Inner plate

32. . . Foam insulation

33. . . Mounting groove

34. . . Magnetic gasket (seal)

35. . . Magnetic department

36. . . Refrigerant pipe

37, 38. . . Protruding

37a. . . Tilting the upper surface

39. . . Sealed fin

39a. . . Installation department

39b, 39c. . . Soft fin

40. . . Lower cold air sealing plate

40a, 41a. . . Engagement hole

40b. . . Mounting plate

40c. . . Horizontal board

40d. . . Inclined plate

41. . . Side cold air sealing plate

42, 43. . . Mounting slot

42a, 43a. . . Protrusion

44. . . Insulation sealing material (insulation layer)

45. . . pad

G, H. . . Void

Fig. 1 is a longitudinal sectional side view showing a freezer door gap seal portion according to a first embodiment of the present invention.

Figure 2 is a cross-sectional plan view of the freezer door gap seal.

Fig. 3(a) is a perspective view showing a mounted state of the cold air sealing plate, and Fig. 3(b) is an exploded perspective view.

Figure 4 is a longitudinal sectional side view of the refrigerator.

Fig. 5 is a longitudinal sectional side view showing a freezer door gap seal portion according to a second embodiment of the present invention.

Fig. 6 is a longitudinal sectional side view showing a freezer door gap seal portion according to a third embodiment of the present invention.

2. . . Insulation box

2a. . . Outer box

2b. . . Inner box

2c. . . Foam insulation

6. . . Freezer (storage room)

12. . . door

28. . . Supporting foot

29. . . window frame

30. . . Outer panel

31. . . Inner plate

32. . . Foam insulation

33. . . Mounting groove

34. . . Magnetic gasket (seal)

35. . . Magnetic department

36. . . Refrigerant pipe

37. . . Protruding

37a. . . Tilting the upper surface

39. . . Sealed fin

39a. . . Installation department

39b, 39c. . . Soft fin

40. . . Lower cold air sealing plate

40a. . . Engagement hole

40b. . . Mounting plate

40c. . . Horizontal board

40d. . . Inclined plate

42. . . Mounting slot

Claims (4)

A refrigerator comprising: a storage compartment cooled by a cold air supply; a door opening or closing a front surface opening of the storage compartment; and a gasket disposed inside the door facing the storage compartment a peripheral portion of the surface is in contact with a periphery of a front surface opening portion of the storage chamber, and seals between the door and a periphery of a front surface opening portion of the storage chamber; and a cold air sealing plate at the door At least a lower portion of the inner surface surrounded by the gasket is mounted along the gasket and protrudes from the door and extends inward along the inner surface of the storage chamber. The cold air sealing plate includes a lower cold air sealing plate attached to a lower portion of a portion surrounded by the sealing pad, and a side cold air sealing plate attached to a side portion of the portion surrounded by the sealing pad. The refrigerator according to claim 1, wherein the lower cold air sealing plate installed at a lower portion of a portion surrounded by the gasket has a curved shape and is installed at a portion surrounded by the gasket The side cold air sealing plates of the side portions have a rectangular plate shape. The refrigerator according to claim 1, wherein a heat insulating layer is provided on a surface of the cold air sealing plate. The refrigerator according to any one of claims 1 to 3, wherein a front end portion of the cold air sealing plate is provided with a flexible gasket close to a bottom surface of the storage chamber.