CN2232132Y

CN2232132Y - Temp. adjustable refrigerator

Info

Publication number: CN2232132Y
Application number: CN 95219537
Authority: CN
Inventors: 朱永坤; 滕紫强
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-31
Filing date: 1995-08-31
Publication date: 1996-07-31
Anticipated expiration: 2005-08-31

Abstract

The utility model discloses a refrigerator with cooling intervals in different temperatures, comprising a compressor, a condenser, capillary pipes, a refrigerating evaporator, a cold storage evaporator, a cold storage temperature controller and a box body provided with a refrigerating room and a cold storage room, wherein, a by-pass pipe provided with an electromagnetic valve is installed between the series connection point of the refrigerating evaporator and the cold storage evaporator and the connection point of the cold storage evaporator and the inlet of the compressor; furthermore, the electromagnetic valve is connected with the cold storage temperature controller through an electric line. When the capacities of the refrigerating room and the cold storage room are changed, the utility model can conveniently adjust the temperature of the refrigerating room and the cold storage room, or the cold storage room is changed to the refrigerating room; besides, the utility model has the advantages of simple structure, convenient production and installation, etc.

Description

The refrigerator of adjustable refrigerating temperature

The utility model relate to a kind of have the different temperatures chilling room every refrigerator.

Existing double-door and dual-temperature refrigerator can be seen from Fig. 1, it contain compressor 1 ', condenser 2 ', capillary 3 ', refrigerating evaporator 4 ', refrigeration evaporator 7 ', refrigeration temperature 0 control device 8 ', and band refrigerating chamber 5 ' and refrigerating chamber 6 ' casing 12 '; Its refrigerating evaporator is connected in series with refrigeration evaporator, and refrigeration thermostat is directly controlled the switch of compressor.The shortcoming of this refrigerator is: when refrigeration, when refrigeration content changes, people are not easy to control the temperature of refrigeration, freezing two Room, for example the refrigeration capacity increases, when refrigeration content reduces, cryogenic temperature can not be up to state standards (≤-18 ℃), and refrigerated storage temperature drops to below 0 ℃ easily, and the speed of refrigerating chamber cooling is very slow.

The purpose of this utility model is to overcome the shortcoming that above-mentioned existing double-door and dual-temperature refrigerator exists, and a kind of refrigeration, cryogenic temperature of controlled double-door and dual-temperature refrigerator and the refrigerator of adjustable refrigerating temperature simple in structure, easy to adjust are provided.

The refrigerator of adjustable refrigerating temperature includes the casing of compressor, condenser, capillary, refrigerating evaporator, refrigeration evaporator, refrigeration thermostat, band refrigerating chamber and refrigerating chamber, characteristics of the present utility model are: being connected in series a little between the tie point with refrigeration evaporator and compressor inlet of refrigerating evaporator and refrigeration evaporator, be communicated with a bypass pipe that has magnetic valve, magnetic valve connects with refrigeration thermostat by electric wiring, and a freezing temperature controller one by one is installed in refrigerating chamber, and this temperature controller is connected with compressor switch by electric wiring.

To and contrast accompanying drawing by embodiment below, the refrigerator of the adjustable refrigerating temperature of the utility model will be done further narration.Have in the accompanying drawing:

Fig. 1 is the positive view of existing double-door and dual-temperature refrigerator;

Fig. 2 is the positive view of the refrigerator of the adjustable refrigerating temperature of the utility model;

Fig. 3 is the circuit diagram of the utility model refrigerator.

See from Fig. 2, the utility model refrigerator includes compressor 1, condenser 2, capillary 3, refrigerating evaporator 4, refrigeration evaporator 7, refrigeration thermostat 8, and casing 12, bypass pipe 9, magnetic valve 10, a freezing temperature controller 11 that has refrigerating chamber 5 and refrigerating chamber 6, an end of bypass pipe is connected an A that is connected in series of refrigerating evaporator and refrigeration evaporator, end is connected the tie point B of refrigeration evaporator and compressor inlet in addition.Can also see that refrigeration thermostat 8 is connected on the magnetic valve 10 by circuit from Fig. 3, freezing temperature controller 11 connects by the switch of electric wiring with compressor 1; Have normally closed switch 13 on the magnetic valve.

The high temperature and high pressure gas that comes out from compressor 1, through condenser 2 condensations, capillary 3 throttlings, enter evaporimeter 4, the cryogenic gas after the evaporation makes refrigerating chamber 5, refrigerating chamber 6 refrigeration, flows back to compressor at last, and repeats to begin next kind of refrigeration cycle.Solid arrow among Fig. 2 is expressed the flow direction of cold-producing medium cyclic process.When the temperature of refrigerating chamber reached setting value, freezing temperature controller 11 shut down compressor 1 by electric wiring, and kind of refrigeration cycle is promptly ended.If in the above-mentioned kind of refrigeration cycle, refrigerating chamber reaches design temperature, then refrigeration thermostat 8 is opened magnetic valve 10 by electric wiring, and bypass pipe 9 promptly is connected.At this moment, the cold-producing medium that comes out from refrigerating evaporator no longer enters refrigeration evaporator, but enters the less bypass pipe of fluid resistance, and flows back to compressor from bypass pipe.Dotted arrow among Fig. 2 is represented the flow direction of cold-producing medium in bypass pipe, though at this moment refrigerating chamber continues in refrigeration, the refrigeration of refrigerating chamber is ended.

When freezer temperature rose to the temperature value of setting, freezing temperature controller 11 made compressor 1 start, and whole kind of refrigeration cycle is restarted; Rise and reach setting value as temperature of refrigerating chamber, then refrigeration thermostat 8 is closed magnetic valve 10, and bypass pipe 9 is cut off, and therefore, the cold-producing medium that refrigerating evaporator comes out passes through from refrigeration evaporator 7, and the refrigeration of refrigerating chamber begins again.

Change the setting value of temperature controller, can change temperature freezing, refrigerating chamber; If need to change refrigerating chamber into refrigerating chamber, then can close the normally closed switch 13 of magnetic valve 10, make magnetic valve normally closed.

The advantage of the utility model refrigerator is: 1) send out at the capacity of refrigeration, freezing two Room During changing, people can regulate the temperature of two Room effectively, make cryogenic temperature reach national standard, Refrigerated storage temperature perhaps makes refrigerating chamber all become refrigerating chamber more than 0 ℃; 2) whole electricity Refrigerator structure is compared with prior art, only increase-individual temperature controller, one section bypass pipe and Individual magnetic valve, and it slightly has the change its whole refrigeration except the tie point of electric wiring System keeps original structure substantially. Therefore, simple in structure, manufacturing and easy for installation and Temperature easy to adjust.

Claims

1, a kind of refrigerator of adjustable refrigerating temperature of the casing (12) that includes compressor (1), condenser (2), capillary (3), refrigerating evaporator (4), refrigeration evaporator (7), refrigeration thermostat (8), band refrigerating chamber (5) and refrigerating chamber (6), it is characterized in that: being connected in series between the tie point (B) of point (A) with refrigeration evaporator and compressor inlet of refrigerating evaporator and refrigeration evaporator, the bypass pipe (9) of a charged magnet valve (10) has been installed, and magnetic valve connects by the same refrigeration thermostat of electric wiring (8).