KR19990013172A - Fresh room chiller of refrigerator - Google Patents

Abstract

The present invention relates to a cooling device for a new room of a refrigerator. The fresh room of a refrigerator installed at an upper side of a refrigerating chamber for the purpose of securing a fresh space for preventing odor transitions from an existing refrigerator is different from that of the refrigerating chamber with a cold side of the cooler supplied by a blower fan. It is difficult to independently control the temperature of the fresh room by cooling it together with the space, and there has been a problem that the freshness of food is lowered due to the odor transfer caused by the supplied cold air. It is installed in close contact with the rear side, and the rear side of the fresh compartment is installed with a thermoelectric element so that the cooling unit is exposed to the inside of the fresh room through the heat transfer block and the rear heat dissipation unit is exposed to the outside of the refrigerator, and a part of the suction pipe is bent several times on the outer side of the heat dissipation unit. I arranged it.

Description

Fresh room chiller of refrigerator

The present invention relates to a fresh room cooling apparatus of a refrigerator, and more particularly, to a fresh room cooling apparatus of a refrigerator installed so that the fresh chamber of the refrigerator is cut off from the outside and independently cooled using a thermoelectric element.

In general, a fresh room of a refrigerator is a space installed to store food more freshly by preventing the transfer of odor by other foods in the refrigerator.

As shown in FIG. 1, the drawing room of the conventional refrigerator is installed to be pulled out directly below the trimming part of the refrigerator, and the rear wall of the drawing room 35 is formed to penetrate through the cold room discharge port 34. It is configured to introduce a portion of the cold air supplied into the refrigerating chamber through the cold air inlet.

Therefore, the fresh room cooling structure of the conventional refrigerator is isolated from other spaces in the refrigerating room 30, so that there is an effect of blocking the transfer of odor by other foods to some extent, but independent temperature control of the fresh room 35 alone is impossible. In the process of being supplied to the refrigerating chamber 30 and heat exchanged in the refrigerating chamber 30, returning to the cooler 20, being cooled, and being supplied to the refrigerating chamber 30 again, there is no proper means for the transition by the smell contained in the cold air. There has been a problem that the freshness of the food in the fresh room 35 cannot be secured.

The present invention has been made in view of the above-described conventional problems, by blocking the fresh room of the refrigerator from other spaces inside the refrigerating room and cooling by a separate cooling device, it is possible to optimally maintain the temperature of the fresh room, and to refrigerating room food and the refrigerating room cold The technical problem is to provide a fresh room cooling apparatus of a refrigerator capable of preventing the transfer of odors caused by the smell.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of a main part of a refrigerator showing a conventional fresh room cooling structure.

2 is a sectional view showing the main parts of a refrigerator showing a fresh room cooling structure according to the present invention;

3 is a rear side main portion perspective view of a refrigerator showing a fresh room heat dissipation structure according to the present invention;

* Description of the symbols for the main parts of the drawings *

1 ..... cooling part, 2 ..... radiating part,

3 ..... heating blocks, 10 .... thermoelectrics,

20 .... cooler, 25 .... suction pipe,

30 ..... refrigerator, 31 ..... refrigerator cold duct,

33 ..... multi duct, 34 ..... cold air outlet,

35 .... freshroom, 36 .... freshroom cover,

50 ..... compressor.

In order to solve the above technical problem, the fresh room cooling apparatus of the refrigerator of the present invention is installed in close contact with the back of the fresh room in the refrigerator compartment, the cooling unit is opposed to the back of the fresh room, the heat sink is exposed to the outside of the rear plate of the refrigerator. A thermoelectric element installed in the insulating urethane layer, the rear surface of the thermoelectric element is in contact with the cooling portion of the thermoelectric element and the front surface penetrates the inside of the refrigerator chamber exposed through the inside of the refrigerator, and a portion of the thermoelectric element in contact with the heat radiating portion It is characterized by consisting of a suction pipe exposed to the outside.

The heat transfer block may be formed of an aluminum material having excellent thermal conductivity, but a plurality of cooling fins may be attached to the end surface of the fresh chamber.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a cross-sectional view of a main part of a refrigerator showing a fresh room cooling structure according to the present invention, and FIG. 3 is a rear side main perspective view of the refrigerator, in which a fresh room 35 is installed in a refrigerating chamber immediately below a trimming part of the refrigerator. The rear wall of 31) is installed to be in close contact with the back of the refrigerating chamber.

Therefore, since the lower end of the existing refrigerating chamber cold air duct 31 is extended downward to the lower side of the fresh room 35, the multi duct 33 is also installed vertically from the lower side of the fresh room, so the multi duct 33 through the refrigerating room cold air duct 31. The cold air flowed into the cold air discharge port 34 and supplied to the cold air outlet 34 is not supplied to the fresh chamber 35 at all.

Therefore, a separate cooling device is installed in the draw chamber 35. When power is applied in the urethane layer 38 between the inner plate 37 and the rear plate 39 at the rear of the draw chamber 35, one side is cooled and the opposite side is By installing the thermoelectric element 10 for heat dissipation, the cooling unit 1 faces the fresh chamber 35 side, and the heat dissipating unit 2 on the opposite side opens the thick plate to be exposed to the outside.

In addition, since the thickness of the thermoelectric element 10 is relatively thin as compared with the urethane layer 38, the heat transfer block 3 having excellent thermal conductivity is installed on the entire cooling unit 1 of the thermoelectric element 10. Block 3 has a rear end surface is in close contact with the cooling unit 1 surface of the thermoelectric element 1 and the front surface penetrates through the rear surface of the refrigerating chamber 30 and is exposed to the inside of the fresh chamber 35. A plurality of cooling fins are installed on the inner side of the fresh room of the heat radiation block (3).

In addition, in the embodiment of the present invention, part of the suction pipe 25 in which the refrigerant returns from the cooler 20 side to the compressor 50 side on the front surface of the heat dissipation unit 2 exposed through the rear plate 39 of the refrigerator. By arranging by bypassing, the heat dissipation of the heat dissipation part 2 is promoted by the suction pipe 25 of about -5 degreeC-0 degreeC.

Reference numeral 36 is a drawing of the drawer cover for closing the front of the drawer (36) to open and close.

In the fresh room cooling apparatus of the refrigerator of the present invention configured as described above, cold air is supplied to the upper side of the refrigerator compartment separately from the cold room 30 cold air supply.

That is, the cooling is independently performed by the thermoelectric element 1 described above, but although not specifically illustrated in the drawing, a temperature sensor is installed in the drawing chamber 35 to detect the temperature inside the drawing chamber 35. If the temperature is above a predetermined temperature, the control unit of the refrigerator determines that the power is applied to the thermoelectric element 1.

Therefore, since the cooling unit 1 is rapidly cooled and the heat transfer block 3 is cooled, the heat exchange is performed between the heat transfer block 3 exposed inside the new chamber 35 and the cold air in the fresh chamber 35. Cool 35.

In addition, when a plurality of cooling fins are provided on the front surface of the heat transfer block 3, the heat exchange efficiency of the heat transfer block 3 can be further increased.

In addition, at the same time as the cooling of the cooling unit 1, the heat dissipation unit 2 disposed on the opposite side of the cooling unit 1 rises to a high temperature and heat is released by convection with the atmosphere. Since a portion of the suction pipe 25 at ˜0 ° C. is bypassed and disposed on the front surface of the heat dissipation unit 2, heat dissipation is more rapid.

On the other hand, the independent cooling of the drawing room by the thermoelectric element 10 is carried out when the drawing room temperature falls below a certain temperature, the temperature sensor in the drawing room 35 detects this and the control unit that judges the signal of the temperature sensing sensor is thermoelectric The cooling of the drawing chamber 35 is terminated by cutting off the power supplied to the element 10.

The fresh room cooling apparatus of the refrigerator of the present invention configured as described above may keep the temperature of the fresh room optimally by blocking the fresh room from the cooling room and performing cooling of the fresh room independently by a thermoelectric element separately from supplying cold air of the refrigerating room. Of course, it is possible to optimize the freshness of the food stored in the fresh room by fundamentally preventing the transfer of odor by cold food or cold food.

Claims (3)

In supplying cold air to the fresh room 35 of the refrigerator installed above the refrigerator compartment, The cooling unit 1 is opposed to the rear surface of the fresh chamber 35 so that the heat dissipation unit 2 is provided in the heat insulation urethane layer 38 so as to be exposed to the outside of the rear plate 39 of the refrigerator, and the rear surface of the thermoelectric element 10. The freshness of the refrigerator, which is interviewed with the cooling unit 1 of the element 10 and the front surface is composed of a heat transfer block 3 installed to penetrate the inner chamber 37 of the refrigerator and be exposed to the inside of the fresh chamber 35. Thread chiller. The method of claim 1, wherein the asbestos pipe (25) is installed on the front surface of the heat dissipating portion (2) of the thermoelectric element (1) so that the refrigerant is returned from the cooler (20) to the compressor (50) side. Fresh chiller of the refrigerator. The refrigerator of claim 1, wherein the drawing chamber (35) is installed such that its rear side is in close contact with the back of the refrigerator.