JPS61191862A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a direct cooling system equipped with a freezing and refrigerating compartment, with a condenser pipe built into the back of the outer box and a condensation prevention pipe around the opening of the main body. Regarding refrigerators.

Conventional technology A conventional example will be explained with reference to FIGS. 4 to 7.

In the figure, 1 is the refrigerator body, outer box 2. It consists of an inner box 3 and a heat insulating material 4 filled between these two boxes, and a freezer compartment 6. The lower part is divided into a cold room 7. 8 is the refrigerator compartment freezer of the freezing cycle, 9
is a freezer compartment cooler, and in order to prevent thermal conductive material such as aluminum foil from flowing down on the back side of the inner box 3, and for convenience of drainage, it is not suitable to place it on the top or side. It is usually provided on the back surface 3a of the box. 11 is the refrigerator compartment T
A temperature regulator is provided inside the refrigerator, and its heat-sensitive tube 12 is provided on the surface of the inner box back surface 3a in a thermally conductive manner to sense the temperature behavior of the refrigerator compartment cooler 8.

Reference numeral 13 is a condenser pipe, and in recent years, for aesthetic reasons, it has been tightly attached to the back surface of the outer box 2 with a heat conductive material such as aluminum foil, and has been placed on the back plate 2a for ease of assembly. There are many things. 14 is a dew condensation prevention pipe for preventing dew condensation around the opening of the main body 1, and is disposed at the opening periphery of the freezer compartment 6 and refrigerator compartment 7 and the partition plate 6a at the front end of the partition wall 6;
The inner partition plate 6a is folded back to form a 0-shaped pipe 14a. Also, regarding the refrigeration cycle, see Section 7.
As shown in the figure, compressor 10'→condenser pipe 13-condensation prevention pipe 14-dryer 16→capillary.

Pipe 16 - Refrigerator compartment cooler 8 - Freezer compartment cooler 9 - Suction pipe 17
- Piping is connected to the compressor 10 in an annular manner.

In this configuration, the high-temperature high-pressure refrigerant gas compressed by the compressor 10 is guided to the condenser pipe 13, heat is radiated to the outside using the back plate 2a of the outer box 2, and the gas is liquefied. It flows to the opening periphery of the main body 1 and the partition plate 6
After heating, the air is depressurized by the capillary tube 16 and first flows into the refrigerator compartment cooler 8 where it evaporates and cools the refrigerator compartment 7. Next, after flowing into the freezer compartment cooler 9 and cooling the freezer compartment 6, it is sucked into the compressor 10 through the suction pipe 17, and from then on, it is controlled by a temperature regulator that senses the temperature behavior of the refrigerator compartment cooler 8. It controls the operation and stop of the compressor 10 to perform a normal cooling action.

Problems to be Solved by the Invention However, at this time, the heat dissipation of the condenser pipe 13 is caused by the outer box 2.
This is not done only for the back plate 2a, but also for the inner box 3 side of the cooler that faces this through the heat insulating material 4, which may partially impair the evaporation effect of the cooler, or cause damage to the freezer compartment. 6
Heat leaks into the refrigerator compartment 7, and the effect of this is particularly large in the refrigerator compartment where the refrigerator compartment cooler 8 is disposed only on the back surface 3a of the inner box for the above-mentioned reason. That is, due to the heat dissipation effect of the condenser pipe 13, the cooling capacity of the refrigerator compartment cooler 8 cannot be fully exerted, and the heat-sensitive tube 12 of the temperature regulator 11 cannot be cooled to a predetermined temperature at which the compressor 1o is stopped. The compressor 10 may be operated continuously without losing its temperature control ability, causing the inside of the refrigerator compartment 7 to become supercooled and the food in the room to freeze, resulting in abnormally high power consumption. there were.

On the other hand, apart from this, the dew condensation prevention pipe 14 heats the middle partition plate 5a to prevent dew condensation through the O-shaped pipe 14a arranged on the middle partition plate 5a. Since the two pipes are arranged, the amount of heat radiated to the outside is suppressed, and the amount of heat radiated from the 0-shaped pipe 14a is a considerable amount.
Alternatively, there is a problem in that heat leaks toward the inside of the refrigerator compartment T, partially obstructing the cooling effect of one compartment.

In view of the above-mentioned points, the present invention prevents the heat influence on the refrigerator compartment side of the condenser pipe built in the outer box, allows normal temperature control, and at the same time prevents condensation prevention from condensation. The purpose is to suppress the amount of heat leakage to.

Means for Solving the Problems In order to achieve this object, the present invention provides a condenser pipe built into the back of the outer box, with most of the pipe located in the outer box facing the side of the refrigerated vehicle. The condensation prevention pipe is arranged around the opening of the freezer compartment, and the partition plate part is only one straight pipe on the refrigerator compartment side.

Function: With this configuration, leakage of heat from the refrigerator compartment portion to the indoor side is almost prevented, and the refrigerator compartment cooler is allowed to carry out its original cooling function to perform normal temperature control.

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.

18 is a condenser pipe, most of which is disposed on the back side of the outer box 2 facing both sides of the freezer compartment 6 using a thermally conductive material such as aluminum foil, and 18 is a condenser pipe. The front edge pipe 18a is arranged around the opening of the freezer compartment 6 excluding the partition plate 6a. Reference numeral 19 denotes a dew condensation prevention pipe, which is formed into a substantially U-shape and is disposed as a partition pipe 19a around the opening periphery of both sides of the refrigerator compartment 70 and on the partition plate 6a. Regarding the refrigeration cycle, as shown in FIG.
- Freezer compartment cooler 9 - Suction pipe 17 - Compressor 1o are sequentially connected in an annular manner.

In this configuration, the high-temperature, high-pressure refrigerant gas compressed by the compressor 10 is guided to the condensing pipe 18 and is radiated to the outside via the outer box 2 on both sides of the freezer compartment 6, and a portion of the inner box 3 is also insulated. Heat is radiated through the insulation material 4, but at this time, since most of the condenser pipe 18 is disposed in the outer box 2 facing the freezer compartment 6, heat leaks through the insulation material 4 to the inner box 3 side. Most of the heat is absorbed by the freezer compartment 6 side and does not affect the cold compartment T side. Therefore, the cooling action of the refrigerator compartment cooler 8 is not inhibited and the original cooling capacity can be exhibited, and the heat sensitive tube 12 of the temperature controller 11 also captures the temperature behavior of the refrigerator compartment cooler 8 to control the compressor 10 appropriately. It works to prevent condensation on the running and stopping sides.
The condensation prevention pipe 19 arranged on the side of the refrigerator compartment 7 heats the periphery between both sides of the cold room 7 and simultaneously heats the middle partition plate 5a to prevent condensation, but the middle partition plate 6a Since only one partition pipe 19a is arranged in a straight line, the amount of heating is appropriate for the narrow partition plate 6a, and the amount of wasteful heat leakage toward the indoor side is reduced.

Effects of the Invention As is clear from the above explanation, the present invention consists of an outer box, an inner box, and a heat insulating material filled between these boxes, and is provided separately facing the freezer compartment and the refrigerator compartment. It is equipped with a cooler, a condenser pipe that is thermally conductively attached to the back surface of the outer box, and a dew condensation prevention pipe that prevents condensation on the periphery of the opening of the main body, and most of the condenser pipe is located on both sides of the freezer compartment. The condensation prevention pipe is arranged on the back side of the outer box opposite to the outer box, and a part of it is arranged around the opening of the freezer compartment excluding the partition plate, and the condensation prevention pipe is installed in a substantially U-shaped line around the opening of the refrigerator compartment and the partition plate. Because it is installed with a solid pipe, most of the heat leakage to the indoor side due to heat dissipation from the condenser pipe is to the freezer compartment side, and there is almost no effect on the refrigerator compartment side, so the refrigerator compartment cooler There is no heat load on the refrigerator compartment or refrigerator compartment, and the refrigerator compartment cooler exerts sufficient cooling capacity to transmit temperature behavior to the heat-sensitive tube of the temperature controller, so the temperature controller maintains the desired operating temperature. The compressor can be controlled to start and stop accurately, ensuring normal temperature control, eliminating the risk of freezing food indoors, and reducing the amount of heat leaking from the partition plate into the room. Coupled with the fact that the cooling efficiency is further increased and unnecessary power consumption can be prevented, the implementation effect is extremely high.

[Brief explanation of the drawing]

Fig. 1 is a perspective view from the back of a refrigerator showing an embodiment of the present invention, Fig. 2 is a simplified sectional view of the refrigerator shown in Fig. 1, Fig. 3 is a refrigeration cycle piping diagram of the refrigerator shown in Fig. Figure 4 is a perspective view from the back of a conventional refrigerator, Figure 6 is an assembled perspective view of the inner box and cooler in Figure 4, Figure 6 is a simplified sectional view of the refrigerator in Figure 4, and Figure 7 is an assembled perspective view of the refrigerator in Figure 4. 5 is a refrigeration cycle piping diagram of the refrigerator shown in FIG. 4. FIG. 2...Outer box, 3...Inner box, 4...
...Insulation material, 6...Partition wall, 6...
Freezer compartment, 7... Refrigerator compartment, 8... Refrigerator cooler, 18... Condenser pipe, 19...
...Anti-condensation pipe. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Fig. I Fig. 2 Fig. 54...Chu-i soil cutting〆...Sakiki-no-7...straddle, piece i Fig. 3 I 4 Fig. I Fig. 5 Fig. 6

Claims (1)

[Claims] A freezer compartment/refrigerator compartment consisting of an outer box, an inner box, and a heat insulating material filled between the two boxes, and partitioned by a partition wall, and a cooling compartment provided separately opposite the freezer compartment/refrigerator compartment. The vessel and
a condenser pipe that is thermally conductively adhered to the back surface of the outer box;
a condensation prevention pipe for preventing dew condensation on the periphery of the main body opening; most of the condenser pipe is disposed on the back surface of the outer box facing both sides of the freezer compartment, and a part of the condenser pipe is disposed on the front end of the inner partition wall. The refrigerator is arranged around the opening of the freezer compartment except for a partition plate provided in the refrigerator, and the condensation prevention pipe is a single substantially U-shaped pipe arranged around the opening of the refrigerator compartment and the partition plate.