JP2002168560A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent narrowing of a space in the chamber of a refrigerating chamber 4 and prevent a ceiling duct 35 from being deformed due to its heat even when the lighting state of a chamber lamp 81 is continued. SOLUTION: A chamber light 81 is situated in the ceiling duct embedded in the ceiling of the refrigerating chamber 4. The lamp of the chamber light 81 is cooled by cold air supplied through the ceiling duct 35. This constitution prevents a chamber from being narrowed by reducing an protruding space of the chamber light 81 in the refrigerating chamber 4, and prevents thermal deformation of the ceiling duct 35 due to the heat of the lamp even when the chamber light 81 is always lit as a failure of the switch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator in which the interior light of a refrigerator compartment is recessed so that a storage space can be widened.

[0002]

2. Description of the Related Art Refrigerators (including refrigerators) widely used today have a structure as shown in FIG.

The interior space of the refrigerator is a refrigerator-side partition wall 1.
5 and a freezer compartment-side partition wall 16 to form a refrigerator compartment 4, a freezer compartment 5, a vegetable compartment 6, and the like.
9 and a plurality of interior lamps 71 are provided.

[0004] A refrigerator is a compressor 2 for compressing a refrigerant.
2. It has a refrigerant circuit including a condenser for releasing and condensing the refrigerant, a decompression device for reducing the pressure of the refrigerant, a refrigerator-side evaporator 25 and a refrigerator-side evaporator 26 for evaporating the refrigerant and generating cold heat. ing.

[0005] An outlet in the refrigerator compartment 4 is provided on the ceiling on the side of the refrigerator compartment door 9 and forms a cool air curtain when the refrigerator compartment door 9 is opened.
9 is provided with a shelf outlet 30 and the like provided on the rear side of the refrigerator compartment 4 (the wall on the back side facing the door).

[0006] The ceiling outlet 29 communicates with a ceiling duct 35 embedded in the ceiling of the refrigerator compartment 4.
Is connected to a shelf duct (not shown), and is connected to the refrigerator compartment evaporator 25.
The air cooled by the air is blown out to the refrigerator compartment 4.

As shown in FIG. 6, a refrigerator light 71 is mounted on the ceiling of the refrigerator compartment 4 and a door switch (not shown) is provided at a portion where the refrigerator compartment door 9 contacts. When the door is opened, the interior lamp 71 is turned on by the door switch.

[0008] The vegetable compartment 6 is not provided with an air outlet, but is provided with a refrigerator compartment side communication hole 1 provided in a refrigerator compartment side partition wall 15.
Cooling air is supplied by the air in the refrigerator compartment 4 flowing from 7.

The air in the vegetable compartment 6 is sucked in from the vegetable compartment intake port 32 so that the air in the refrigerator compartment 4 and the vegetable compartment 6 circulates.

On the other hand, the freezer compartment 5, the ice room 7, and the select room 8 are each provided with a freezer compartment side outlet 31 and the ice room 7, the select room 8, and the freezer room 5 are provided.
The air in the ice room 7 and the select room 8 flows into the freezing room 5 through the freezing room side communication hole 18 provided in the freezing room side partition wall 16 for separating the freezing room 5 from the freezing room 5. Air is taken in from the room intake port 33.

With such a configuration, the refrigerant compressed by the compressor 22 releases heat and condenses in the condenser, is decompressed by the decompression device, and is supplied to the refrigerating room side evaporator 25 and the freezing room side evaporator 26. The air exchanges with the air in the refrigerator and evaporates, and the air is cooled.

The cooled air is blown out to the refrigerator compartment 4 through the ceiling duct 35 and the shelf duct, and is blown out to the freezing room 5 and the ice room 7.

[0013]

However, since the interior lamp 71 is provided so as to protrude from the ceiling of the refrigerator compartment 4,
There is a problem that the storage space of the refrigerator compartment 4 becomes narrow and that the ingress and egress of food is inconvenient.

The blinking of the interior lamp 71 is controlled by a door switch, and is turned on when the refrigerator compartment door 9 is opened.
May remain lit.

However, since the in-compartment lamp 71 is an incandescent lamp, there is a problem that if the lighting state is continued, the ceiling or the ceiling duct 35 formed of resin or the like is thermally deformed by the heat.

On the other hand, in the refrigerator, cooling is performed by circulating the air in the refrigerator through the refrigerator-side evaporator 25 and the like as described above. There is a problem that the smell is transferred.

Accordingly, the present invention provides a refrigerator that does not make the interior space narrow, prevents the ceiling from being thermally deformed even if the lighting state continues, and prevents the smell of food from occurring. The purpose is to do.

[0018]

In order to solve the above-mentioned problems, the invention according to claim 1 is provided from the back to the front in the interior of the refrigerator made of a heat insulating casing, and cools the cool air from the front to the lower part in the refrigerator. In a refrigerator provided with a duct formed so as to be supplied to the refrigerator, an interior light that is turned on / off in response to opening and closing of a door provided in a housing is arranged in the duct, and the interior light is provided. By illuminating the interior of the cabinet, the interior space is not narrowed, and even if the lighting condition continues, the ceiling is not deformed by heat and the smell of food does not occur. And

The invention according to claim 2 is characterized in that the interior lamp is housed in a housing partitioned in a duct.

The invention according to claim 3 is characterized in that an air inlet for taking in a part of the cool air flowing in the duct is provided in the housing.

The invention according to claim 4 is characterized in that the air inlet is provided so as to face cold air flowing in the duct.

The invention according to claim 5 is characterized in that the interior lamp is an ultraviolet lamp which deodorizes at least cold air which is taken in the housing.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. Note that the same reference numerals are used for the same configurations as those in the related art, and description thereof is omitted as appropriate.

FIG. 1 is a sectional view showing a schematic structure of a refrigerator, and its housing has an outer box 1 made of a magnetic metal such as iron and an AB.
An inner box 2 made of a synthetic resin such as S is integrally formed with a foamed heat insulating material 3 such as foamed polyurethane.

In the internal space, a refrigerator-side partition wall 15 is provided.
In addition, a freezer compartment side partition wall 16 is provided to form a refrigerator compartment 4, a vegetable compartment 6, a select room 8, an ice room 7, a freezer compartment 5, and the like. The refrigerator compartment 4 is provided with a plurality of shelves 19.

A water supply tank (not shown) for storing water for making ice is provided at the lower end of the refrigerator compartment 4, and an ice making device 11 and an ice storage box 12 are provided in the ice room 7.

The refrigerating compartment 4 stores foods intended to be stored at a temperature not to be frozen, and an inner ice warming compartment 13 is provided below the refrigerating compartment 4.

The vegetable room 6 is used for storing fruits and vegetables, and the ice room 7 is used for storing ice or ice cream. The freezer compartment 5 is used for storing foods to be frozen and stored.

The select room 8 is set at, for example, about 3 ° C., the refrigerator compartment 4, and is set at about 1 ° C., the chilled room, about −1.
° C and inner ice greenhouse, about -3 ° C partial room, about -7 ° C soft freezer, about -1
It is set at 8 ° C. and used by switching as a freezing room.

The refrigerator is provided with a refrigerating circuit as shown in FIG. 2, and the refrigerating circuit includes a compressor 2 for compressing a refrigerant.
2. It has a condenser 23 for radiating and condensing the refrigerant, a decompression device 24 for decompressing the refrigerant, a refrigerator side evaporator 25 and a freezer side evaporator 26 for evaporating the refrigerant and generating cold heat.

The refrigerating compartment side evaporator 25 and the freezing compartment side evaporator 26 are not always operated at the same time, and when either one is operated, the refrigerant is circulated to the other evaporator. The three-way valve 27 is controlled to control the refrigerant to circulate through both evaporators when operating simultaneously.

The compressor 22 is disposed below the bottom of the refrigerator, the refrigerator-side evaporator 25 is located on the upper rear side of the refrigerator compartment 4, and the freezer-side evaporator 26 is located in the freezer room 5 and the ice room 7. It is provided on the back side.

The refrigerator compartment 4 is provided on the ceiling on the side of the refrigerator compartment door 9 and corresponds to the ceiling outlets 29 and the shelves 19 which form a cool air curtain when the refrigerator compartment door 9 is opened. And a shelf outlet 30 provided on the rear side of the refrigerator compartment 4.

The vegetable compartment 6 is not provided with such an outlet, and cool air is supplied by the air in the refrigerator compartment 4 flowing from the refrigerator compartment side communication hole 17 provided in the refrigerator compartment side partition wall 15. It has become so.

The air in the vegetable compartment 6 is sucked in from the vegetable compartment intake port 32, and the air in the refrigerator compartment 4 and the vegetable compartment 6 circulates.

The ceiling outlet 29 communicates with a ceiling duct 35 embedded in the ceiling of the refrigerator compartment 4, and the shelf outlet 30 communicates with a shelf duct (not shown). The vegetable compartment intake port 32 communicates with an intake duct 37.

On the other hand, the freezing room 5, the ice room 7, and the select room 8 are each provided with a freezing room side outlet 31 and the ice room 7, the select room 8, and the freezer room 5 are provided.
The air in the ice room 7 and the select room 8 flows into the freezing room 5 through the freezing room side communication hole 18 provided in the freezing room side partition wall 16 for separating the freezing room 5 from the freezing room 5. Air is taken in from the room intake port 33.

The ceiling duct 35 is provided with a refrigerator light 81 as shown in FIG. 3 and FIG.
Blinks when is opened and closed.

FIG. 3 is a partial view of the ceiling duct 35 provided with such an interior lamp 81, and FIG. 4 is a sectional view thereof.

The interior lamp 81 has a lamp 82 and a lamp cover 89 made of a transparent member. The lamp 82 is disposed in the ceiling duct 35. A housing 86 is provided so as to sandwich the lamp 82.

Since the housing 86 has an air inlet 88 and an air outlet 85, the ceiling duct 35
A portion of the air flowing through the lamp 82 flows while cooling the lamp 82, and the other air flows through the flow path therearound.

Therefore, even if the door switch fails and the interior lamp 81 is turned on, the lamp 82 is cooled by the cool air, and the heat of the lamp 82 cools the ceiling of the refrigerator compartment 4 and the ceiling duct 3.
5 can be prevented from being thermally deformed.

Although the housing 86 functions so as not to increase the flow resistance by rectifying the flow of air, the present invention does not require the housing 86 as an essential component.

This lamp 82 is replaced with an ultraviolet lamp 82
By doing so, the odor of the circulating air inside the refrigerator is decomposed and deodorized, thereby preventing the smell of the food from being transferred.

In addition, since the interior light 81 is provided to be housed in the ceiling duct 35, the storage space of the refrigerator compartment does not become narrow, and when the food is taken in and out, the food is kept inside the interior light. Inconveniences, such as hitting 81, are reduced, making it easier to get in and out.

With such a configuration, the refrigerant compressed by the compressor 22 is radiated by the condenser 23 to be condensed, and decompressed by the decompression device 24. Thereafter, the refrigerant is supplied to the refrigerator-side evaporator 25.
And, it is supplied to the freezing room side evaporator 26, where it exchanges heat with the air in the refrigerator, evaporates and returns to the compressor 22. The air in the refrigerator is cooled to exchange heat with the refrigerant and give heat of evaporation of the refrigerant.

The air cooled by the freezer-side evaporator 26 is
Air is blown out from outlets provided in the freezing room 5, the ice room 7, the select room 8 and the like, and the air in the ice room 7 and the select room 8 communicates with the freezing room side provided in the freezing room side partition wall 16. It flows into the freezing room 5 through the hole 18 and flows through the circulation path via the freezing room intake port 33.

On the other hand, the air cooled by the refrigerator-side evaporator 25 is diverted to the ceiling duct 35 and the shelf duct, and is blown out to the refrigerator compartment 4 from the ceiling outlet 29 and the shelf outlet 30.

At this time, the air flowing through the ceiling duct 35 is blown out from the ceiling outlet 29 into the refrigerator to form an air curtain, and the air flowing through the shelf duct is discharged from the shelf outlet 3.
From 030, it is blown out into the refrigerator. Thereby, even when the refrigerator compartment door 9 is opened and closed, it is difficult for outside air to enter the refrigerator, so that the cool keeping effect is enhanced, and the inside of the refrigerator compartment 4 is uniformly cooled.

The air blown into the refrigerator compartment 4 in this way is supplied to the refrigerator compartment side communication hole 17 provided in the refrigerator compartment side partition wall 15.
Then, it flows into the vegetable compartment 6 and is sucked from the vegetable compartment intake port 32.

The ceiling of the vegetable room 6 has a baffle plate 20.
The air flowing in through the refrigerated compartment side communication hole 17 directly blows on vegetables and the like stored in the vegetable compartment 6 to prevent drying and freezing of the vegetables and the like.

[0052]

As described above, according to the first aspect of the present invention, the interior lamp that is turned on / off in response to opening and closing of the door provided on the housing is arranged in the duct.
Since the interior light is illuminated by the interior light, it is possible to prevent the interior space from being narrowed by the interior light.

According to the second aspect of the present invention, since the interior lamp is housed in the housing partitioned in the duct,
The ceiling will not be thermally deformed even if the interior space is not narrowed, and even if the lighting state continues.

According to the third aspect of the present invention, since the air inlet for taking in a part of the cool air flowing in the duct is provided in the housing, the interior space is not narrowed and the lighting state is continued. Even if the ceiling does not deform thermally.

According to the fourth aspect of the present invention, since the air inlet is provided so as to face the cool air flowing in the duct, the space inside the refrigerator is not narrowed, and even if the lighting state continues efficiently. The ceiling will not be thermally deformed.

According to the fifth aspect of the present invention, since the interior lamp uses an ultraviolet lamp for deodorizing at least the cold air taken into the housing, the interior space is not narrowed, and the lighting state is not changed. Even if it continues, the ceiling will not be thermally deformed and the smell of food will not occur.

[Brief description of the drawings]

FIG. 1 is a sectional view of a refrigerator applied to the description of an embodiment of the present invention.

FIG. 2 is a refrigeration circuit diagram.

FIG. 3 is an explanatory view of a ceiling duct in which an interior light is embedded.

FIG. 4 is a sectional view of a ceiling duct.

FIG. 5 is a cross-sectional view of a refrigerator applied to the description of the related art.

FIG. 6 is a cross-sectional view illustrating a mounting structure of the interior light and the like.

[Explanation of symbols]

 4 Refrigerating Room 6 Vegetable Room 9 Refrigerating Room Door 15 Refrigerating Room Side Partition Wall 17 Refrigerating Room Side Communication Hole 19 Shelf 25 Refrigerating Room Side Evaporator 29 Ceiling Outlet 30 Shelf Outlet 32 Vegetable Room Inlet 35 Ceiling Duct 37 Intake Duct 81 Interior light 82 Lamp 85 Air outlet 86 Housing 88 Air inlet 89 Lamp cover

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Junichi Mogi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Yuki Kakinuma 2-5-5 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Masaya Matsuoka 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L045 AA07 BA01 CA02 DA02 EA01 HA01 NA15 PA04

Claims (5)

[Claims] 1. A refrigerator provided with a duct provided from the inside of a refrigerator made of a heat insulating housing toward the front and configured to supply cold air downward from the front toward the inside of the refrigerator. A refrigerator, wherein an interior light that is turned on / off in response to opening and closing of a door provided in the refrigerator is arranged in the duct, and the interior light is illuminated by the interior light. 2. The refrigerator according to claim 1, wherein the interior light is housed in a housing partitioned in the duct. 3. The refrigerator according to claim 2, wherein an air inlet for taking in a part of the cool air flowing in the duct is provided in the housing. 4. The refrigerator according to claim 3, wherein the air inlet is provided so as to face cold air flowing in the duct. 5. The refrigerator according to claim 4, wherein the interior lamp is an ultraviolet lamp for deodorizing at least cold air taken into the housing.