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Cooler with defroster, and refrigerator having cooler with defroster

A cooler and cooling fin technology, applied in defrosting, refrigeration and liquefaction, household refrigeration equipment, etc., can solve the problems of difficult surface temperature of glass tube 12, limit and decrease in improving defrosting efficiency, etc.

Inactive Publication Date: 2009-07-15
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned conventional structure, there is a problem that although the distance between the glass tube heater 6 and the cooler 5 is shortened and the defrosting efficiency is improved, since the radiant heat of the glass tube heater 6 is used for defrosting, Defrost, there is a limit in further improving the defrost efficiency
[0008] At this time, there is a problem that heat is transferred to the cooling fins 10 via the plate 13 at the portion where the plate 13 is in contact with the glass tube 12 .
In this way, the surface temperature of the glass tube 12 is difficult to drop significantly, and the surface temperature of the glass tube 12 cannot be suppressed below the ignition temperature of the flammable refrigerant.

Method used

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  • Cooler with defroster, and refrigerator having cooler with defroster
  • Cooler with defroster, and refrigerator having cooler with defroster
  • Cooler with defroster, and refrigerator having cooler with defroster

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Embodiment Construction

[0048] Hereinafter, the present invention will be described in further detail with reference to the accompanying drawings. However, the drawings are schematic diagrams, and the dimensions showing the relationship between positions are not correct. In addition, this invention is not limited to this embodiment.

[0049] (Embodiment 1)

[0050] use Figure 1 to Figure 6 Embodiment 1 will be described.

[0051] exist figure 1 Among them, a cooler with a defrosting device (hereinafter referred to as a cooler) includes: a cooler 21 composed of a plurality of cooling fins 23 and refrigerant tubes 22 passing through the cooling fins 23; The glass tube heater 24 of the defrosting device.

[0052] Isobutane, which is a flammable refrigerant, is sealed in the refrigerant tube 22 .

[0053] The glass tube heater 24 includes: a coiled heating wire 26 made of a metal resistor; a glass tube 27 covering the heating wire 26 ; a cover 28 covering the opening of the glass tube 27 ; and a ...

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Abstract

A cooler with a defroster having increased defrosting efficiency and a refrigerator having the cooler with the defroster. Cutouts are formed in cooling fins, bent parts are formed only at the vertical peripheral edges of the cutouts, and a glass tube heater is inserted into the cutouts. The bent parts are brought into contact with the glass tube of the glass tube heater to defrost the cooler by radiating the heat of the glass tube heater from the upper surface of the glass tube to the cooling fins and conducting it from the side surfaces of the glass tube to the cooling fins.

Description

technical field [0001] The present invention relates to a cooler provided with a defrosting device in a refrigerator or the like, and a refrigerator provided with the cooler. Background technique [0002] The cooler of the conventional refrigerator is demonstrated. Figure 10 It is a cross-sectional view of a main part of a conventional refrigerator. exist Figure 10 Among them, the refrigerator is provided with a freezer compartment 1 at the bottom, a freezer compartment door 2 is provided in front of the freezer compartment 1, a refrigerating compartment 3A is provided above the freezing compartment 1, and a refrigerating compartment door 4 is provided in front of the refrigerating compartment 3A, Cooler 5 is provided at the bottom rear of the refrigerator body, and a glass tube heater 6 as a defrosting device is provided in the breach of the downward opening of cooler 5 bottom, and fan 7 is provided at the top of cooler 5 . The operation of the refrigerator configured as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/08F25B1/00
Inventor 伊藤和彦前田利树砂田正树
Owner PANASONIC CORP
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