CN2081514U

CN2081514U - Refrigerator keeping temp. after power cut

Info

Publication number: CN2081514U
Application number: CN 90227148
Authority: CN
Inventors: 宣捍东; 柏玉发
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-12-30
Filing date: 1990-12-30
Publication date: 1991-07-24

Abstract

The utility model discloses a refrigerator keeping temperature after the power supply is cut off. A regenerator composed of substance with great melting enthalpy is arranged between a refrigerating chamber and a freezing chamber. While the refrigerator is switched on and is operated, the heat of the refrigerating chamber can be absorbed through the regenerator which replaces a lower evaporator for lowering the temperature of the refrigerating chamber. After the power supply of the refrigerator is cut off, the inner temperature of the freezing chamber and the refrigerating chamber can be maintained through the regenerator and can not rise rapidly.

Description

Refrigerator keeping temp. after power cut

The utility model relates to a kind of refrigerator, specifically, is after a kind of power failure, refrigerator that still can cold insulation.

Common refrigerator, after the power failure, the temperature inside the box rises rapidly, and various mushrooms grow, and make food spoilage in the case easily.At present, there is the people that a kind of capsule of regenerator that cries is placed in the freezer compartment of refrigerator, when refrigerator energising work, regenerator decreases temperature, after the power failure, regenerator is moved in the refrigerating chamber, by the heat in the regenerator absorption refrigerating chamber, room temperature does not rise so that Keep cool.This method has three shortcomings: the one, after having a power failure, shift regenerator artificially, and unmanned in the family if during working, have a power failure, just can not in time shift regenerator, the refrigeration indoor temperature still can rise.The 2nd,, when shifting regenerator, to open refrigerating chamber earlier, take out regenerator, then, also to open refrigerating chamber and put into regenerator, like this, refrigerator hot-air is on every side entered in the case, the temperature inside the box is raise.The 3rd,, when refrigerator energising work, regenerator is placed in the refrigerating chamber, takies certain space, has reduced the effective volume of refrigerating chamber, and food is deposited in influence.

The purpose of this utility model is a kind of refrigerator of design, and when refrigerator energising work, energy is cold-storage automatically, and when having a power failure, absorbing and cooling temperature does not need manually to shift regenerator automatically, and the while does not reduce the case inner volume of refrigerator.

The utility model is an automatic cold-storage when realizing switching on by the regenerator of packing between refrigerating chamber and refrigerating chamber, and the purpose of heat absorption automatically during power failure does not take the refrigerator useful space simultaneously again.

The utility model is that handle is by polyvinyl alcohol, anhydrous ethylenediamine, borax, sell sour potassium, the material that materials such as water are formed is made agent for storage of coldness, the upper surface of packing into has in the pancake container of several semi-circular grooves (3), form regenerator (5), again regenerator (5) be placed on refrigerator freezing and evaporating pipe (2) below, freezing and evaporating pipe (2) is embedded in the semi-circular grooves (3) of regenerator (5) upper surface, regenerator (5) lower surface is adjacent to one deck aluminium sheet (6), contact with refrigerating chamber top (7) by aluminium sheet (6), other positions between refrigerating chamber base plate (4) and refrigerating chamber top board (7) are full of foamed plastic then, with isolated external heat.

During refrigerator energising work, the interior heat in freezing and evaporating pipe (2) absorption refrigerating chamber (1), refrigerating chamber (1) temperature is reduced, also absorb simultaneously the heat of regenerator (5), regenerator (5) temperature is reduced, the regenerator (5) of cooling contacts with the interior air of refrigerating chamber (8) by refrigerating chamber top board (7), heat is absorbed by regenerator (5) in the air, it is big that the air specific weight that has turned cold becomes, deposit to refrigerating chamber (8) bottom, form convection current with the hot-air of refrigerating chamber (8) bottom, so repeatedly repeatedly, the interior temperature of refrigerating chamber (8) is reduced gradually, and this just can save common refrigerator in order to reduce refrigerating chamber (8) temperature, and the refrigerator evaporator of installing.

During power failure,, when low temperature becomes high temperature, can absorb a large amount of heat energy, thereby can control the rate of climb of refrigerating chamber (8) and the interior temperature of refrigerating chamber (1) because the heat content of the agent for storage of coldness of containing in the regenerator (5) is very big, still can cold insulation.

Characteristics of the present utility model are not reduce the useful space of refrigerator, can save refrigerator evaporator, thereby reduce cost, and the back refrigerator cold insulation time that has a power failure is long.

Accompanying drawing is a schematic diagram of the present utility model.

Among the figure: 1, refrigerating chamber, 2, the freezing and evaporating pipe, 3, semi-circular grooves, 4, the refrigerating chamber base plate, 5, regenerator, 6, aluminium sheet, 7, the refrigerating chamber top board, 8, refrigerating chamber.

Below, in conjunction with the accompanying drawings a non-limiting examples is illustrated.The volume of regenerator (5) is 2 liters, the agent for storage of coldness that interior dress is made up of materials such as polyvinyl alcohol, anhydrous ethylenediamine, borax, potassium nitrate, water, the lower surface of regenerator (5) contacts with refrigerating chamber top board (7) by one deck aluminium sheet (6), freezing and evaporating pipe (2) is placed in the semi-circular grooves (3) of regenerator upper surface, refrigerator is after energising a period of time, refrigerating chamber (8) just can reach set point of temperature, thereby regenerator (5) can replace the function of evaporimeter down.Within 30～48 hours, refrigerating chamber (8) still can keep low temperature after having a power failure.Because regenerator (5) is placed between refrigerating chamber and the refrigerating chamber, does not take the refrigerator useful space, also can reduce the charging quantity of foamed plastic simultaneously.

Claims

1, refrigerator that still can cold insulation behind a kind of have a power failure is characterized in that:

A, between the refrigerating chamber and refrigerating chamber of refrigerator, the jerrycan that a upper surface has the semicircle groove is housed;

The agent for storage of coldness that dress is made up of polyvinyl alcohol, anhydrous ethylenediamine, borax, potassium nitrate, water etc. in b, the described jerrycan.