JP3637300B2 - refrigerator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a refrigerator used for refrigeration or freezing of food or the like.
[0002]
[Prior art]
A conventional refrigerator is disclosed in Japanese Utility Model Publication No. 62-80185.
[0003]
Hereinafter, the conventional refrigerator will be described with reference to the drawings. FIG. 6 is a vertical sectional view of a conventional refrigerator. In FIG. 6, 1 is a storage chamber, and 2 is a cooling unit disposed on the upper surface of the storage chamber 1. The cooling unit 2 includes a cooler 3 having a cooler 6, a cooler blower 7, a cold air inlet 8, and a cold air outlet 9 inside the heat insulator 5, and a machine room having a compressor 10, a radiator 11, and a radiator fan 12. 4 (open type in this example). A drain pan 14 is disposed below the cooler 6 of the cooling unit 2, and an internal duct 15 is provided below the drain pan 14, thereby defining a cool air inlet 8 and a cool air outlet 9 of the cooling unit 2. The storage chamber 1 is also provided with one through hole 13 on the upper surface of the storage chamber 1 corresponding to the cold air inlet 8 and the cold air outlet 9 of the cooling unit 2.
[0004]
About the refrigerator comprised as mentioned above, the operation | movement is demonstrated below. The storage chamber 1 is cooled by introducing the cold air cooled by the cooler 6 of the cooling unit 2 from the cold air outlet 9. At this time, a short circuit phenomenon in which “cold air flowing in from the cold air outlet 9 returns to the cold air inlet 8 and cold air does not flow into the storage chamber 1 and the storage chamber 1 does not cool” is caused by the internal duct 15 below the drain pan 14. It is preventing.
[0005]
In addition, the heat absorbed by the cooler 6 is radiated to the outside of the storage chamber 1 by the radiator 11 disposed in the machine chamber 4 through the refrigerant conveyed by the compressor 10. The radiator 11 improves the efficiency of heat radiation by forced convection by the blower 12 for radiator. Here, when the refrigerator is installed next to a wall or a tall furniture, it is necessary to secure a gap between the wall and the furniture in order to prevent a decrease in forced convection to the radiator 11 due to an increase in air path resistance. was there. In addition, in order for the user to feel uncomfortable when the air flowing out of the radiator 11 hits the user, it is common for the user to flow the air from the front door side to the rear side of the storage room 1 standing at the time of operating the refrigerator. It was. From such an air path design, both the cooling chamber 3 and the machine chamber 4 are often arranged in the left-right direction when viewed from the storage chamber door side.
[0006]
[Problems to be solved by the invention]
Generally, refrigerators are required to reduce the installation space and increase the storage space in the refrigerator. However, the above-described conventional configuration has a drawback that the storage space is reduced because the internal duct is provided in the storage chamber to avoid the short circuit phenomenon.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems, and to provide a refrigerator capable of increasing the storage space by eliminating a short circuit on the cooling unit side, thereby eliminating a duct in the storage room. To do.
[0011]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention includes a storage chamber and a cooling unit disposed on the upper surface of the storage chamber, and the cooling unit includes a cooler, a cooler blower, a cold air inlet, A cooling chamber having an outlet and a machine room having a compressor, a radiator, and a blower for a radiator, and an evaporation unit constituted by an evaporating dish and an evaporation sheet are separated from the cooling unit and separated into the machine chamber. Connected adjacent to each other and configured to guide drain water from the cooling chamber into the evaporation unit and guide exhaust heat air from the machine room. Forcibly promotes evaporation.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a refrigerator according to the present invention will be described with reference to the drawings. In addition, about the same structure as the past, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
[0013]
(Embodiment 1)
FIG. 1 is a perspective view of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a plan sectional view of the cooling unit of the refrigerator according to the embodiment. FIG. 3 is a cross-sectional view of the refrigerator according to the embodiment. FIG. 4 is a characteristic diagram of the temperature variation in the refrigerator depending on the distance between the cold air inlet and the cold air outlet of the refrigerator of the embodiment. In FIGS. 1 to 4, 20 is a refrigerator, 21 is a storage room, and 22 is a storage. A cooling unit disposed on the upper surface of the chamber 21, 23 is a machine chamber cover that also serves as a cooling chamber cover of the cooling unit 22, 24 is an air suction hole for exchanging heat with the radiator, and 25 is air for exhaust heat. This is a blowout hole.
[0014]
26 is a machine room, 27 is a cooling chamber, 28 is a heat insulator, 29 is a cooler, 30 is a cooler blower, 31 is a cold air inlet, 32 is a cold air outlet, 33 is a compressor, 34 is a radiator, and 35 is A heat dissipating blower 37 is a door of the storage chamber 21. The machine room 26 is arranged behind the door 37 of the storage room 21, and the cooling room 27 is arranged in front of the door 37. Further, the machine room 26 includes a compressor 33, a radiator 34, and a radiator fan 35.
[0015]
The cooling chamber 27 has a cooler 29, a cooler blower 30, a cool air inlet 31, and a cool air outlet 32 inside a heat insulating body 28 made of a foamable material. Further, on the upper surface of the storage chamber 21, there is one elongated hole-shaped through hole 36 corresponding to both the cold air inlet 31 and the cold air outlet 32 located at both ends in the longitudinal direction of the refrigerator 20 in the longitudinal direction. doing.
[0016]
Further, the cold air inlet 31 and the cold air outlet 32 are located at both ends in the longitudinal direction of the cooling unit 22 and have an interval of 250 mm or more.
[0017]
Reference numeral 38 denotes an inclined surface having an inclination for imparting directivity to the inner wall surface direction of the storage chamber 21 in the vicinity of the cold air inlet 31 and the cold air outlet 32.
[0018]
About the refrigerator of this invention comprised as mentioned above, the operation | movement is demonstrated below. First, the storage chamber 21 is cooled by introducing cold air cooled by the cooler 29 of the cooling unit 22 from the cold air outlet 32. At this time, since the cold air inlet 31 and the cold air outlet 32 are located at both ends in the longitudinal direction of the refrigerator, a short circuit hardly occurs. For this reason, since the internal duct becomes unnecessary, the internal storage space can be increased. Moreover, since the through hole 36 provided on the upper surface of the storage chamber 21 is a single hole, the degree of freedom in fitting the cold air inlet 31 and the cold air outlet 32 with the through hole can be increased. Furthermore, the number of processing steps for the top surface of the storage chamber 21 can be reduced.
[0019]
Further, when the internal temperature variation is “maximum value−minimum value” among the 8 internal temperature measurement points 50 in FIG. 3, as shown in FIG. 4, the cold air inlet 31 and the cold air outlet 32. When the distance between the cold air outlet 32 and the cold air inlet 31 is secured, the short circuit component from the cold air outlet 32 to the cold air inlet 31 is reduced, and the temperature distribution of the storage chamber 21 is in a good state.
[0020]
Further, by providing the inclined surface 38 at the opening of the cold air inlet 31 and the cold air outlet 32 of the cooling unit 22, the cold air introduced from the cold air outlet 32 is stored in the storage chamber on the opposite side to the cold air inlet 31. The inner wall surface of 21 can be provided with directionality, and the effect of preventing a short circuit can be further enhanced.
[0021]
As described above, the refrigerator according to the present embodiment includes the storage chamber 21 and the cooling unit 22 disposed on the upper surface of the storage chamber 21. The cooling unit 22 includes the cooler 29 and the cooler blower 30 inside the heat insulator 28. , A cooling chamber 27 having a cold air inlet 31 and a cold air outlet 32, and a machine chamber 26 having a compressor 33, a radiator 34, and a blower 35 for radiator, and the storage chamber 21 has cold air for the cooling unit 22 on the upper surface. One through hole 36 corresponding to both the suction port 31 and the cold air outlet 32 is provided, and the cold air inlet 31 and the cold air outlet 32 are located at both ends of the cooling unit 22 in the longitudinal direction, and the interval is 250 mm or more. In addition, by providing an inclination in the openings of the cold air inlet 31 and the cold air outlet 32, a short circuit of cold air can be prevented, and the internal duct that has reduced the conventional storage space It can be eliminated. Moreover, since the through hole 36 provided on the upper surface of the storage chamber 21 is a single hole, the degree of freedom in fitting the cold air inlet 31 and the cold air outlet 32 with the through hole can be increased.
[0022]
(Embodiment 2)
FIG. 5 is a plan sectional view of the cooling unit portion of the refrigerator according to the second embodiment of the present invention. In FIG. 5, reference numeral 40 denotes an evaporation unit, which includes an evaporation dish 41 and an evaporation sheet 42. The evaporation unit 40 is connected adjacent to the exhaust air blowing hole 25 side of the cooling unit machine chamber 26 and introduces a drain 43 that guides the defrosted water in the cooling chamber 27. It is configured to introduce exhaust heat.
[0023]
With the above configuration, even in an installation environment where drainage work cannot be performed, drain water discharged from the cooling chamber 27 flows into the evaporating dish 41 via the drain 43 and is added to the evaporating sheet 42 by retrofitting the evaporating unit 40. High-temperature air that is immersed and radiated in the machine room 26 is introduced into the evaporation unit 40 from the air outlet 25, and the evaporation of drain water can be promoted.
[0027]
【The invention's effect】
As described above, the invention described in claim 1 includes a cooling unit having a cooling unit disposed on the upper surface of the storage chamber, a cooler having a cooler, a blower for cooler, a cold air inlet, and a cold air outlet inside the heat insulator, Consists of a machine room having a compressor, a radiator, and a fan for the radiator, and an evaporation unit composed of an evaporating dish and an evaporation sheet is separated from the cooling unit and can be connected adjacent to the machine room. In addition, since the drain water from the cooling chamber is guided and the exhaust heat air from the machine room is guided, the drain water can be forcibly promoted in an installation environment where drain drainage is impossible.
[Brief description of the drawings]
1 is a perspective view of a first embodiment of a refrigerator according to the present invention. FIG. 2 is a plan sectional view of a cooling unit of the refrigerator according to the first embodiment. FIG. 3 is a longitudinal sectional view of a refrigerator according to the first embodiment. FIG. 5 is a cross-sectional plan view of the cooling unit section of the second embodiment of the refrigerator according to the present invention. FIG. 6 is a characteristic diagram of the temperature variation in the refrigerator depending on the distance between the cold air inlet and the cold air outlet ] Longitudinal sectional view of a conventional refrigerator [Explanation of symbols]
20 Refrigerator 21 Storage Room 22 Cooling Unit 25 Air Blow Hole 26 Machine Room 27 Cooling Room 28 Heat Insulator 29 Cooler 30 Cooler Blower 31 Cold Air Intake Port 32 Cold Air Blowout Port 33 Compressor 34 Radiator 35 Heat Dissipation Blower 36 Through Hole 38 Inclined surface 40 Evaporating unit 41 Evaporating dish 42 Evaporating sheet 43 Drain

Claims (1)

  And a cooling unit disposed on an upper surface of the storage chamber. The cooling unit includes a cooler, a fan for the cooler, a cold air inlet, a cold air outlet, a compressor, and a heat radiation. And an evaporator unit composed of an evaporating dish and an evaporating sheet is separated from the cooling unit and can be connected adjacent to the machine room, A refrigerator configured to guide drain water from the cooling chamber and guide exhaust heat air from the machine room.

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