JPH01181076A - Refrigerator - Google Patents

Abstract

PURPOSE:To effect normal cooling effect and restrain the amount of leakage of the heat of a dewing preventing pipe into the case of a refrigerator, by a method wherein several pipes of a built-in auxiliary condenser are arranged on the side surface of an outer casing and heat conduction sealer is poured around the pipes, then, the pipes are fixed by aluminum foils. CONSTITUTION:Most of auxiliary condenser pipe 20 is adhered to and arranged on the rear surface of the side surface 2b of the outer casing 2 of a refrigerator main body 1 through heat conduction sealer 21 and a heat conductive member such as aluminum foils 22 or the like while a part of the pipe 20 is arranged on the peripheral rim of the opening of the main body 1 as a dewing preventing pipe 20a. High-temperature refrigerant gas from a compressor 12 is introduced into a main condenser pipe 5 and the auxiliary condenser pipe 20 and the heat thereof is dissipated to the outside of the refrigerator through both side surfaces 2b of the outer casing 2 of the main body 1. The number of rows of the auxiliary condenser pipe 20 is small and heat dissipating effect is obtained by the heat conduction sealer 21 and the heat conductive members such as the aluminum foils 22 and the like, therefore, the leakage of heat toward an inner casing 3 through a heat insulating member 4 is very small whereby cooling effect and heat dissipating effect are effected normally. On the other hand, a dewing preventing pipe 20a is arranged on the peripheral rim of the opening of the refrigerator main body 1 and heats the peripheral rim to prevent it from dewing, however, it is arranged on the inside flange 23 of the outer casing 2, therefore, useless leakage of heat into the refrigerator may be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat insulating box such as a refrigerator, which has a condenser pipe built into the back of the outer box and a condensation prevention pipe around the opening of the main body.

BACKGROUND OF THE INVENTION Recently, in insulated boxes such as refrigerators, the condenser that forms part of the cooling cycle is not exposed on the main body, but a pipe serving as the condenser is buried inside the main body. . Additionally, a pipe to prevent condensation is always installed around the periphery of the refrigerator body.

The conventional weak point will be explained with reference to FIGS. 4, 6, and 6.

In the figure, reference numeral 1 includes a refrigerator main body, an outer box 2, an inner box 3, and a heat insulating material 4 filled between these boxes. 5, 6.7 are the main condenser pipe, auxiliary condenser pipe, and dew condensation prevention pipe that constitute a part of the refrigeration cycle. It is installed in the part where the

The main condenser pipe 5 is disposed within a flange 8 on the back surface 2a of the outer box 2 of the refrigerator main body 1, in contact with the side surface 2b. A heat conductive sealer 9 fixes the main condenser 6 and improves heat conduction to the outer box 2. The auxiliary condenser pipe e is meandering and fixed to the side surface 2b of the outer box 2 with aluminum foil 10 or the like. Reference numeral 7 denotes a dew condensation prevention pipe for preventing dew condensation around the opening of the refrigerator body 1, and is disposed on the outer flange 11. Regarding the refrigeration cycle, as shown in Fig. 6, the compressor 12 - main condenser pipe 6 - auxiliary condenser pipe 6 -> anti-condensation pipe differential -> dryer 13 -> capillary tube 14 -> cooler 16 -> suction pipe 16 -> compressor 12 and are sequentially connected by piping.

In this configuration, the high-temperature, high-pressure refrigerant gas compressed by the compressor 12 is guided to the main condenser vibro and the auxiliary condenser vibro, and is radiated to the outside using the back surface 2a and side surface 2b of the outer box 2, and is liquefied. Then, it flows into the condensation prevention pipe 7 and warms the opening periphery of the refrigerator main body 1, and then is depressurized by the capillary tube 14 and flows into the cooler 15 where it evaporates and performs a cooling effect.

Problems to be Solved by the Invention However, if the auxiliary condenser pipes e are meandered in multiple rows on the side surface 2b of the outer box 2 and fixed with aluminum foil 10 or the like, the heat dissipation of the auxiliary condenser vibro is limited to the outer box. This is not only applied to the side surface 2b of the refrigerator 2, but also affects the interior 17 of the refrigerator through the heat insulating material 4. In addition, variations occur due to pasting, which adversely affects the heat dissipation effect and impedes energy conservation.

In view of the above points, the present invention prevents the thermal influence of the auxiliary condenser pipe built into the outer box to the inside of the refrigerator, allows normal cooling, and at the same time reduces the amount of heat leaking into the interior of the refrigerator from the condensation prevention pipe. It is intended to suppress.

Means for Solving the Problems In order to achieve this objective, the present invention arranges a small number of auxiliary condenser pipes built into the side of the outer box, flows a heat conductive sheet around these pipes, and wraps them with aluminum foil. It is fixed.

Function: This configuration almost prevents heat leakage to the inside of the refrigerator and allows normal cooling to occur.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. Note that a detailed explanation of the same configuration as the conventional one will be omitted, and only the different parts will be described.

Reference numeral 20 denotes an auxiliary condenser pipe, most of which is disposed in close contact with the back surface of the surface 2b of the outer box 2 of the refrigerator body 1 using a thermally conductive sheet 21 and a thermally conductive material such as aluminum foil 22 in a thermally conductive manner. A part of the condensation prevention pipe 20a is arranged around the opening of the main body 1. Condensation prevention pipe 20
a is fixed to the inner flange 23 with aluminum foil 24 to ensure good heat conduction to the outer box 2. Regarding the refrigeration cycle, as shown in Fig. 3, the compressor 12 → main condenser vibro → auxiliary condenser pipe 20 → dryer 13 → capillary tube 14 →
The cooler 15 → suction pipe 16 → compressor 12 are connected by piping in order, and the condensation prevention pipe shown in the conventional example is eliminated.

In this configuration, the high-temperature refrigerant gas compressed by the compressor 12 is guided to the main condenser vibro and the auxiliary condenser pipe 20, and is radiated to the outside through the outer box 2 on both sides 2b of the main body 1. , a part of the heat is also radiated to the inner box 3 side via the heat insulating material 4, but at this time, the arrangement of the auxiliary condenser pipes 20 is small, and the heat conducting material such as the heat conducting thief 21 and aluminum foil 22 is used. Since a heat dissipation effect greater than that of the conventional example is obtained, leakage to the inner box 3 side via the heat insulating material 4 is extremely rare. Therefore, the original cooling action and heat dissipation action are performed normally. or,
On the other hand, at this time, the dew condensation prevention pipe 20a, which is a part of the auxiliary condenser pipe 2°, is arranged around the opening of the refrigerator main body 1 and heats the periphery to prevent dew condensation. The installation part a is the inner flange 23 of the outer box 2
By doing so, the amount of heating becomes appropriate and the amount of wasteful heat leaking into the refrigerator is reduced.

Effects of the Invention As is clear from the above explanation, the present invention is comprised of an outer box, an inner box, and a heat insulating material filled between the two boxes, and a main condenser pipe disposed on the back surface of the outer box. , an auxiliary condenser pipe arranged on both sides of the outer box at a constant distance from the main condenser pipe, and a heat conductive thief and aluminum filled around the main condenser pipe and the auxiliary condenser pipe. Since the foil and the auxiliary condenser pipe are arranged around the opening periphery of the refrigerator main body and are arranged on the insulating material side inside the front flange of the outer box, the heat surface inside the refrigerator due to heat radiation of the auxiliary condenser pipe is Since leakage has almost no effect, cooling and heat dissipation functions can be performed normally. In addition, the anti-condensation pipe, which is part of the auxiliary condenser pipe, is placed on the inside flange on the front of the outer box of the refrigerator body, so it can be heated to an appropriate amount, reducing unnecessary heat leakage into the refrigerator and further cooling. Coupled with the increased efficiency and the ability to prevent unnecessary power consumption, the implementation effect is extremely high.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a refrigerator showing one embodiment of the present invention;
The figure is a perspective view of a refrigerator equipped with the same heat-insulating box, FIG. 3 is a refrigeration cycle piping diagram of the refrigerator of the same embodiment, FIG. 4 is a simplified sectional view of a conventional refrigerator, and FIG. 6 is a diagram of the conventional refrigerator. FIG. 6 is a perspective view of a refrigerator equipped with a heat insulating box, and is a refrigeration cycle piping diagram of the conventional refrigerator. 1...refrigerator body, 2...outer box, 3.
...Inner box, 4...Insulation material, 5...
・Main condenser pipe, 9... Heat conduction thief, 20
...Auxiliary condenser pipe, 21...Heat conduction sheet, 22...Aluminum foil, 23...
・Inside the front flange of the outer box, 24... Aluminum foil. Name of agent: Patent attorney Toshio Nakao and 1 other person 20
-1-Ki gradually first i doubt 8 glances 5 ha 0 eve 2θ Yuri divination L yo hanfu 0 Fig. 2 π--1 auxiliary solidification 1 suga 5 bifu. Figure 3 Figure 4 // / Figure 5

Claims (1)

[Claims] It consists of an outer box, an inner box, and a heat insulating material filled between these two boxes, and a main condenser pipe arranged on the back side of the outer box, and a main condenser pipe located at a certain distance from the main condenser pipe. an auxiliary condenser pipe disposed on both sides of the outer box, a heat conductive sealer filled around the main condenser pipe and the auxiliary condenser pipe, and aluminum foil; A refrigerator in which a pipe is arranged at the periphery of the opening of the refrigerator main body, and is arranged on the heat insulating material side inside the front flange of the outer box.