JP2002267328A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a refrigerator of such a structure as the radiation pipe of a cooling system is arranged partially on the partitioner of the refrigerator in which the effect of the cooling system is enhanced by retarding intrusion of heat from the radiation pipe into the compartment trough a front face body. SOLUTION: The refrigerator comprises a refrigerator body 1 having a plurality of temperature band compartments, a partitioner 2 for sectioning the compartment, the front plate 22 fixed to the front part of the partitioner 2 while being coated with thermal insulation paint 23, and heat radiation pipes 18 of refrigeration cycle unit mounted on the rear side of the front plate 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a partition structure for a refrigerator having a plurality of compartments.

[0002]

2. Description of the Related Art In recent years, in a refrigerator, a part of a cooling system radiating pipe is replaced with a refrigerator opening and a refrigerator in place of a conventional heater for energy saving in order to prevent departure of a partition body portion due to the influence of a temperature in a refrigerator. The structure is arranged in the partition body.

A conventional refrigerator is disclosed in JP-A-9-3315.
There is one disclosed in Japanese Unexamined Patent Publication No. 3 (KOKAI). 6 to 9 below
A conventional refrigerator will be described with reference to FIG.

[0004] In these figures, reference numeral 1 denotes a refrigerator main body. An upper partition body 2 and a lower partition body 3 define a drawer freezer compartment 4 at the center, a refrigerator compartment 5 at an upper portion, and a drawer type vegetable compartment 6 at a lower portion. Further, the freezing compartment 4 is formed as a two-stage drawer freezing compartment by means of a central partitioning member 7. 8 is a refrigerator 5
A low-temperature chamber provided at the bottom, which is maintained at a partial freezing temperature of about -3 ° C. Further, a low temperature chamber door 9 is provided on the front part.

[0005] Reference numeral 10 denotes a compressor of a refrigeration cycle, 11 denotes an auxiliary condenser, 12 denotes a side condenser, 13 denotes a front condenser, and 14 denotes a capillary. Also one
Reference numeral 5 denotes a cooler, and the cool air cooled by the cooler 15 is blown to each of the chambers by a blower 16.

Reference numeral 17 denotes a front plate having a U-shaped cross section formed with a bent portion at the top and bottom, and a radiating tube 18 forming a part of the front condenser 12 is disposed inside the U-shape. The front plate 17 is made of a material having good heat conductivity such as an iron plate.

Reference numeral 19 denotes a heat storage material, which is attached to the back surface of the front plate 17 so as to be in contact with the radiator tube 18 so that heat can be exchanged.

Reference numeral 20 denotes an elastic holding plate. When the front plate 17 is attached to the upper partition wall, the heat radiating pipe 18 and the heat storage material 19 are securely adhered to the front plate 17 by the heat insulating material 21 so that the heat radiating pipe 18 Through the heat storage material 19 and the front plate 17
To ensure efficient transmission.

The operation of the above configuration will be described below. The refrigerant enters the front condenser 13 from the side condenser 12 through the refrigerant auxiliary condenser 11 compressed by the compressor 10, and is decompressed by the capillary 14 and evaporated by the cooler 15.

The cool air cooled by the cooler 15 is supplied to a blower 16
Then, the air is blown to the freezing room 4, the refrigerating room 5, and the vegetable room 6, and each room is cooled to a predetermined temperature.

[0011] Here, the partition body 2,
3 and 7 are cooled to easily cause dew condensation. However, during operation of the refrigeration cycle, the temperature of the radiator pipe 18 becomes about 40 ° C., and heat is transferred to the front plate 17 via the heat storage material 19, so that the front plate 1
The temperature of 7 is kept slightly lower than 40 ° C. to prevent the front plate 14 from dewing.

[0012]

However, in the above-mentioned conventional construction, since the upper and lower ends of the front plate 17 extend inside the refrigerator from the viewpoint of securing the strength, the radiating pipe 18 is provided.
A part of the heat radiation from the refrigerator enters the refrigerator compartment through both ends of the front plate 17 as a heat load, which causes a problem that the efficiency of the refrigerator cooling system is reduced. Conversely, the temperature of the front plate 17 is lowered by the cool air in the refrigerator through both ends of the front plate 17, and the temperature is reduced, which causes dew condensation.

The present invention solves the conventional problems, and reduces the intrusion of a heat load from a front condenser into a refrigerator, thereby increasing the efficiency of a cooling system. Conversely,
It prevents the temperature of the front panel from dropping and eliminates condensation on the partition wall of the refrigerator body. It is another object of the present invention to provide a partition structure for a refrigerator or the like in which the number of parts is reduced to reduce the number of work steps.

[0014]

According to a first aspect of the present invention, there is provided a partition provided for partitioning the inside of a refrigerator into a plurality of compartments, and a partition attached to the front of the partition. A heat insulating paint is applied to the front plate.The heat insulating effect of the heat insulating paint makes it possible to reduce heat load penetration from the front surface of the partition body into the refrigerator compartment, thereby increasing the efficiency of the cooling system and the refrigerator body. It has the effect of eliminating condensation on the partition.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, the front plate further includes a bent portion, and the bent structure increases the rigidity and ensures the strength of the front plate. Has an action.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the heat-insulating paint is applied only to the partition body side of the front plate, and heat conduction from the front surface of the front plate. This has the effect of suppressing the heat intrusion into the refrigerator compartment while ensuring the surface temperature rise due to the above.

According to a fourth aspect of the present invention, in the second aspect of the present invention, at least the bent portion is an end surface bent portion provided on an end surface of the front plate. This has the effect of increasing the rigidity and ensuring the strength of the front plate.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the heat-insulating paint applied to the front plate is applied only to the bent portion of the end face, and has the most influence on the heat absorption load into the refrigerator. The heat insulation effect can be obtained while the amount of the heat-insulating paint applied is kept to a minimum by intensively insulating the locally bent end portion.

According to a sixth aspect of the present invention, in the fourth aspect of the present invention, a hollow portion is formed in the bent portion of the end surface, and the heat insult of the hollow portion is further suppressed by the heat insulating effect of the hollow portion. be able to.

According to a seventh aspect of the present invention, in the first aspect of the present invention, the front plate is processed by using a raw material to which a heat insulating paint is applied. Free design is possible without being limited by the shape and mounting method of the face plate.

According to an eighth aspect of the present invention, in the invention according to any one of the first to seventh aspects, the radiating heat of the refrigeration cycle is applied to a front plate coated with a heat insulating paint attached to the front surface of the partition. A pipe is provided, and the temperature of the front plate can be kept relatively high by the heat of the radiating pipe to prevent condensation.

According to a ninth aspect of the present invention, in accordance with the eighth aspect of the present invention, a heat insulating paint is applied to a surface of a radiating pipe of a refrigeration cycle disposed on a front plate attached to a front surface of the partition body. In addition, the heat of the radiator tube can be transmitted to the front plate by an amount necessary for preventing dew condensation, so that the dew condensation on the front plate can be efficiently prevented and the heat intrusion into the refrigerator can be suppressed.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a refrigerator according to the present invention will be described below with reference to the drawings. In addition,
The same reference numerals are given to the same components as those in the related art, and the detailed description is omitted.

(Embodiment 1) FIG. 1 is a sectional perspective view of a main part of a refrigerator according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 22 denotes a front plate made of a heat conductive material such as an iron plate stretched into a thin plate, and contains a heat insulating material only around the front plate 22 or only on the partition 2 side. A heat insulating paint 23 is applied. The upper and lower end surfaces of the front plate 22 are provided with end face bent portions 22b having an L-shaped cross section. Further, a bent portion 22a is provided at the center in the longitudinal direction.

The operation of the above configuration will be described below. The operation of the refrigeration cycle causes a temperature difference between the inside and outside of the refrigerator, and the surface of the front plate 22 is cooled, but due to the heat insulating effect of the heat insulating paint 23 applied around the front plate 22,
Heat transfer from the inside of the refrigerator can be suppressed, and a decrease in the surface temperature of the front plate 22 can be suppressed. Therefore, it is possible to prevent dew condensation on the front plate 22 and to reduce the intrusion of a heat load from the front surface of the partition 2 into the refrigerator, thereby increasing the efficiency of the cooling system.

Further, since the front plate 22 is provided with the bent portion 22a, the rigidity is increased by the bent structure, and the strength of the front plate 22 can be secured.

Further, a heat insulating paint 2 applied to the front plate 22
3 is provided only on the partition 2 side, so that the surface temperature rise due to heat conduction from the front surface of the front plate 22 is ensured.
Heat intrusion into the refrigerator compartment can be efficiently suppressed.

Further, an end face bent portion 22 is formed on the end face of the front plate 22.
Since b is provided, the rigidity is further increased by the bent structure of the end face, and the strength of the front plate 22 can be secured.

Further, since the front plate 22 is made of a magnetic material such as an iron plate, a gasket for sealing the inside of the refrigerator door and the refrigerator and the front plate 22 are magnetically attracted to each other, and the inside of the refrigerator. Hermeticity can be improved.

Although the front plate 22 is an iron plate in the present embodiment, the front plate 22 may be made of a non-thermally conductive material having a magnetic material. When the front plate 22 is made of a non-thermally conductive material having a magnetic material, the heat insulation of the front plate can be further suppressed, the heat penetration from the front plate into the refrigerator can be reduced, and the efficiency of the cooling system can be increased. be able to.

(Embodiment 2) FIG. 2 is a sectional view showing a main part of a refrigerator according to Embodiment 2 of the present invention.

In FIG. 2, the heat insulating paint 23 applied to the front plate 22 is applied only to the bent end face 22b.

Therefore, when cooling the inside of the compartment, the end bent portion 22b, which has the greatest influence on the heat absorption load into the compartment, is concentrated and insulated, so that the amount of the heat-insulating paint 23 applied can be kept to a minimum and the heat insulation can be minimized. The effect can be obtained, refrigerator energy saving,
The perspiration of the front plate 22 can be prevented.

(Embodiment 3) FIG. 3 shows Embodiment 3 of the present invention.
FIG. 4 is a perspective view showing raw materials before forming the front plate of the refrigerator of the embodiment.

In the figure, the front plate 22 has bent portions 22c at the upper and lower ends, and forms a hollow portion 25 inside the bent portion.

The raw material 24 before the front plate 22 is formed is coated with a heat insulating paint 23 before processing such as bending.

The operation of the above configuration will be described below.

At the time of cooling the inside of the refrigerator, the front plate 22 has the bent end face 2
Since the hollow portion is formed in 2c, in addition to the heat insulating effect of the heat insulating paint 23, the air heat insulating effect of the hollow portion 25 can further suppress heat intrusion into the refrigerator. Therefore, energy saving of the refrigerator and sweating of the front plate 22 can be further prevented.

The raw material 2 before the front plate 22 is formed
In No. 4, since the heat insulating paint 23 is applied before processing such as bending, the number of work steps to be applied after forming can be reduced, and the front plate 22 can be processed into an arbitrary shape, and the degree of freedom in design is improved. I do. Therefore, for example, the bent portion 22c applies the heat insulating paint 23, and the hollow portion 25c is formed on the inner surface.
Can be formed, and the heat insulation of the front part can be surely improved.

(Embodiment 4) Referring to FIG.
A radiator tube 18 which is a part of the front condenser 12 forming the refrigeration cycle is disposed on the side of the partition body 2. A heat insulating paint 23 is applied around the bent end portion 22b of the front plate 22, and the radiator tube 18 and the front plate 22 are disposed in contact with each other so that heat can be exchanged.

The heat radiation pipe 18 is coated with a heat insulating paint 23 on the surface as required.

The operation of the above configuration will be described below.

During the refrigeration cycle operation, the heat from the radiator pipe 18 is transmitted to the entire surface of the front plate 22, and the surface temperature of the front plate 22 is kept relatively high (for example, slightly higher than the ambient temperature). The surface of the front plate 22 can reliably prevent the occurrence of dew condensation. Since the heat-insulating paint 23 is applied around the bent end portion 22b of the front plate 22, most of the heat from the radiating pipe 18 is transmitted to the outside of the front plate 22, and the heat is transmitted from the bent end portion 22b. Since intrusion of heat into the inside is reduced, sweating of the front plate 22 can be prevented, and energy saving of the refrigerator can be achieved.

Further, since the heat radiation pipe 18 is coated with a heat insulating paint 23 on the surface as required, it is desired to suppress the amount of heat generation in the design of the cooling system, for example, to optimize the surface temperature of the front plate 22. This is effective in such cases as to secure an appropriate temperature at the front surface of the partition body and reduce the amount of heat absorbed in the refrigerator.

In this embodiment, the heat insulating paint 2
Although the heat radiating pipe 18 is arranged on the front plate 22 coated with the heat sink 3, the heat insulating paint 23 may be applied after the heat radiating pipe 18 is arranged. By disposing the heat radiating pipe 18 directly on the front plate 24, the amount of heat from the heat radiating pipe 18 can be directly transmitted to the front plate 22, so that the heat radiating ability is improved. Moreover, if the heat-insulating paint 23 is applied to the partition body side of the front plate 22 so as to cover the surface of the heat radiating pipe 18, the heat intrusion into the refrigerator is further suppressed, and the cooling system efficiency is improved.

In the case where the heat radiating pipe 18 is provided, the structure of the conventional peripheral technology is complicated. However, in the present invention, the heat insulating structure necessary for suppressing heat intrusion into the refrigerator is made of the heat insulating paint 23. The solution can be easily solved by coating, and the number of components can be reduced and the working efficiency can be improved.

Further, by forming the bent portion 22a of the front plate 22 into a structure in which the heat radiating tube 18 can be easily arranged, the heat radiating tube 18 can be reliably brought into contact with the front plate 22, and the number of parts can be reduced. be able to.

The refrigerator according to the embodiment of the present invention has been described as having a drawer freezer in the center of the refrigerator body. However, the present invention is not limited to this. What constitutes a room may of course be used.

[0050]

As described above, according to the first aspect of the present invention, there is provided a partition provided for partitioning the inside of a refrigerator into a plurality of compartments, and a front plate attached to a front portion of the partition. A heat insulating paint is applied to the front panel, and the heat insulating effect of the heat insulating paint makes it possible to reduce the intrusion of the heat load from the front surface of the partition into the refrigerator compartment, thereby increasing the efficiency of the cooling system and the partition of the refrigerator main body. Dew condensation can be prevented.

Further, the invention according to claim 2 is the same as the invention according to claim 1.
In the invention described in (1), a bent portion is further provided on the front plate, and the bent structure increases rigidity and can secure the strength of the front plate.

Further, the invention according to claim 3 is based on claim 1.
Alternatively, in the invention according to claim 2, the heat insulating paint is
It is applied only to the partition body side of the front plate, and after ensuring the surface temperature rise due to heat conduction from the front of the front plate,
Heat intrusion into the refrigerator compartment can be suppressed.

The invention described in claim 4 is the same as the claim 2.
In the invention described in (1), at least the bent portion is an end face bent portion provided on the end surface of the front plate, and the bent structure of the end surface further increases rigidity and can secure the strength of the front plate.

The invention described in claim 5 is the same as claim 4
In the invention described in (1), the heat-insulating paint applied to the front plate is applied only to the bent portion of the end face. The heat insulation effect can be obtained while keeping the amount of the coating applied to a minimum.

The invention described in claim 6 is the same as the invention in claim 4.
In the invention described in (1), the hollow portion is formed in the bent portion of the end face, and the heat infiltration effect of the hollow portion can further suppress heat intrusion into the refrigerator.

The invention described in claim 7 is the first invention.
In the invention according to any one of claims 6 to 6, the front plate is processed using a raw material to which a heat insulating paint is applied, and free design is not limited by the shape and mounting method of the front plate. It becomes possible.

Further, the invention described in claim 8 is the first invention.
The radiating pipe of the refrigerating cycle is arranged on a front plate applied with a heat insulating paint attached to a front part of the partition body, wherein the heat is radiated by the heat of the radiating pipe. The temperature of the face plate can be kept relatively high, and dew condensation can be reliably prevented.

Further, the invention described in claim 9 is the same as in claim 8
In the invention described in the above, heat insulating paint is applied to the surface of the radiator pipe of the refrigeration cycle arranged on the front plate attached to the front part of the partition body, and the heat of the radiator pipe is reduced by an amount necessary to prevent dew condensation. The heat can be transmitted to the face plate, and dew condensation on the front plate can be efficiently prevented, and further, heat intrusion into the refrigerator can be suppressed.

[Brief description of the drawings]

FIG. 1 is a sectional perspective view of a main part of a first embodiment of a refrigerator according to the present invention.

FIG. 2 is a sectional view of a main part of a refrigerator according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a front plate of a refrigerator according to a third embodiment of the present invention.

FIG. 4 is a perspective view showing raw materials before a front plate of the refrigerator according to the embodiment is formed.

FIG. 5 is a sectional view of a main part of a fourth embodiment of the refrigerator according to the present invention.

FIG. 6 is a perspective view of a conventional partition wall front plate.

FIG. 7 is a sectional view of a conventional partition wall.

FIG. 8 is a longitudinal sectional view of a conventional refrigerator.

FIG. 9 is a piping diagram of a conventional refrigeration system.

[Explanation of symbols]

 2 Partition body 18 Heat radiating tube 22 Front plate 22a, 22c Bent portion 22b End face bent portion 23 Insulating paint 24 Raw material 25 Cavity

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshishi Kamisako 4-5-2-5 Takaidahondori, Higashiosaka-shi, Osaka Inside Matsushita Refrigerating Machinery Co., Ltd. 4-chome 2-5 Matsushita Refrigeration Co., Ltd. F-term (reference) 3L045 AA04 BA01 CA02 CA03 DA02 EA01 HA01 PA04

Claims (9)

[Claims] 1. A partition body provided for partitioning the inside of a compartment into a plurality of compartments, and a front plate attached to a front portion of the partition body, wherein applying a heat insulating paint to the front plate. Refrigerator to feature. 2. The refrigerator according to claim 1, wherein a bent portion is provided on the front plate. 3. The refrigerator according to claim 1, wherein the heat-insulating paint is applied only to the partition body side of the front plate. 4. The refrigerator according to claim 2, wherein at least the bent part is an end bent part provided on an end face of the front plate. 5. The refrigerator according to claim 4, wherein the heat insulating paint applied to the front plate is formed only at the bent portion of the end face. 6. The refrigerator according to claim 4, wherein a hollow portion is formed in the bent end portion. 7. The refrigerator according to claim 1, wherein the front plate is processed using a raw material to which a heat insulating paint is applied. 8. The refrigeration cycle radiator tube is provided on a front plate coated with a heat insulating paint attached to a front surface of the partition body. refrigerator. 9. The refrigerator according to claim 8, wherein a heat insulating paint is applied to a surface of a radiating pipe of a refrigeration cycle disposed on a front plate attached to a front surface of the partition body.