JPH0933153A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease electric power consumption by reducing heat transfer from a front plate on a front part of a partition wall part to the inside of a compartment. SOLUTION: A part of refrigerant pipes of the radiating side of a refrigerating cycle unit is arranged as a heat exchanger on the back side of the front plate 17 of the front part of a partition wall part between the freezer compartment and the refrigerator compartment. The front plate 17 is a metal plate with high thermal conductivity and thermally insulating holes 19 are arranged at the bending parts on both edge parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a part of a refrigerant pipe on the heat radiating side of a refrigerating cycle unit for heat exchange on the front surface of a partition wall part of a freezer compartment of a refrigerator and a dew compartment formed in the vicinity It relates to a refrigerator to prevent.

[0002]

2. Description of the Related Art As a conventional refrigerator, for example, Japanese Patent Laid-Open No.
There is one disclosed in Japanese Unexamined Patent Publication No. -103984. Hereinafter, a conventional refrigerator will be described with reference to FIGS.

In the figure, reference numeral 1 denotes a refrigerator main body, and an upper partition wall 2 and a lower partition wall 3 partition a freezing chamber 5 of a drawer type in the center, a refrigerating room 6 in an upper part, and a vegetable chamber 7 of a drawer type in a lower part. There is.

Further, the freezing chamber is divided into upper and lower parts 2 by a partition 4.
It forms a drawer-type freezer compartment. Reference numeral 8 is a compressor of a refrigeration cycle, 9 is a cooler, 10 is a condenser, and 11 is for circulating the cold air cooled by the cooler 9 to the freezing compartment 5, the refrigerating compartment 6 and the vegetable compartment 7, respectively. It is a thing.

Reference numeral 10 'is a heat-radiating tube forming a part of the condenser 10, and is arranged in an inverted U-shape on the rear surface of the front opening of the outer box 12. Reference numeral 13 denotes a front plate having a substantially U-shaped cross-section with bent portions formed on the upper and lower sides, and is attached to cover the upper partition wall 2, the lower partition wall 3 and the partition 4 in front of them.

The front plate 13 is made of a material having good thermal conductivity such as an iron plate. Reference numeral 14 is a heat storage agent, which is the front plate 13
It is attached to the back surface of the heat exchanger and is installed in heat exchange with the refrigerant pipe 10 ', and keeps the temperature of the front plate 13 at a predetermined temperature by the heat storage effect of the heat storage agent 14 not only when the refrigeration cycle unit is operating but also when the refrigeration cycle unit is stopped. It is what makes me.

Reference numeral 15 is an elastic locking plate which is provided between the refrigerant pipe 10 'and the heat insulating material 16 and is pressed by the heat insulating material 16 provided on the upper partition wall 2 when attached to the front plate 13 on the upper partition wall 2. The refrigerant pipe 10 ′, the heat storage agent 14 and the front plate 13 are securely brought into close contact with each other, and the heat radiation of the refrigerant pipe 10 ′ is efficiently transmitted to the front plate 13 via the heat storage agent 14.

With the above construction, the temperature of the refrigerant pipe 10 'becomes around 40 ° C. during operation of the refrigeration cycle unit, but since heat is transferred to the front plate 13 via the heat storage agent 14, the temperature of the front plate 13 is reduced. The temperature is lower than 40 ° C. and the entire surface is heated to prevent the front plate 13 from being dewed.

[0009]

However, in the above-mentioned conventional structure, the upper and lower end portions of the front plate are arranged so as to extend toward the freezing room or the refrigerating room from the viewpoint of ensuring strength. Heat leakage from the refrigerating chamber, especially from the freezing chamber, increases, which causes the temperature of the front portion to decrease.

Further, when the refrigeration cycle unit is in operation, the temperature of both ends of the front plate is also increased by the heat of the heat radiation side refrigerant pipe, which has been a factor of increasing the power consumption of the refrigerator.

The present invention solves the above-mentioned drawbacks, reduces heat leak from the inside of the refrigerator, reduces the heat load inside the refrigerator, and reduces the power consumption of the refrigerator.

[0012]

In order to achieve this object, the present invention provides a plurality of heat insulating holes at the bent portions at the upper and lower ends of the front plate.

[0013]

With this structure, the heat conduction resistance to the bent portions at the upper and lower end portions of the front plate is increased in the narrow portions between the heat insulating holes, and the heat conduction amount to the indoor side is reduced.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same components as those in the related art are denoted by the same reference numerals, detailed description thereof will be omitted, and only different portions will be described.

The front plate 17 is made of a metal plate having a good heat conductivity and having a shape as shown in FIG. 1, and bent portions 18 at both upper and lower ends thereof.
A heat insulating hole 19 is opened in the.

FIG. 2 shows the upper partition wall 2 between the freezer compartment 5 and the refrigerator compartment 6. Since the heat conduction resistance to the bent portion 18 is increased by the heat insulation holes 19 in the narrow portion between the heat insulation holes, it is transmitted from the front plate 17 to the upper plate 2a and the lower plate 2b of the partition wall 2, Since the amount of heat that becomes a heat load in the refrigerator can be reduced, the amount of power consumption can be reduced. Further, even when the operation of the refrigeration cycle unit is stopped, heat is less likely to be taken into the refrigerator from the bent portions 18 at the upper and lower ends of the front plate, so that the temperature of the front plate 17 is less likely to drop and dew condensation can be prevented.

[0017]

As described above, according to the present invention, a part of the refrigerant pipe on the heat radiating side of the refrigerating cycle unit is heat-exchanged with the front plate of the partition wall portion such as the freezing compartment and the refrigerating compartment. Since it is made of a metal plate with good properties, and heat insulating holes are formed in the upper and lower end parts that extend to the inside of the refrigerator, the heat of the radiating pipe is difficult to transfer to the refrigerator even while the refrigeration cycle unit is operating. The heat load is less likely to occur and the power consumption can be reduced. Further, since heat is less likely to be taken into the refrigerator, the temperature of the front plate is sufficiently maintained, and dew condensation can be reliably prevented. Also, strength can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view of a front plate of a partition wall of a refrigerator showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a partition wall showing an embodiment of the present invention.

FIG. 3 is a vertical sectional view of a refrigerator showing an embodiment of the present invention.

FIG. 4 is a cross-sectional view of a refrigerator showing an embodiment of the present invention.

FIG. 5 is a perspective view of a front plate of a partition wall showing a conventional example.

FIG. 6 is a vertical sectional view of a partition wall showing a conventional example.

FIG. 7 is a vertical sectional view of a conventional refrigerator.

FIG. 8 is a cross-sectional view of a refrigerator showing a conventional example.

[Explanation of symbols]

 2, 3 Partition wall 10 'Refrigerant pipe 17 Front plate 19 Thermal insulation hole

Claims (1)

[Claims] 1. A refrigerator main body having a plurality of temperature zone chambers, a partition wall for partitioning the chambers, a front plate having a substantially U-shaped cross section attached to a front face portion of the partition wall, and the front face portion. A refrigerator provided with a heat dissipation side refrigerant pipe of a refrigeration cycle unit provided on the back surface of the refrigerator and a plurality of heat insulating holes provided at upper and lower bent portions of the front plate.