CN2419554Y

CN2419554Y - Semiconductor uncontinuous refrigerator

Info

Publication number: CN2419554Y
Application number: CN 99236055
Authority: CN
Inventors: 于银龙; 刘迎春
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-14
Filing date: 1999-05-14
Publication date: 2001-02-14
Anticipated expiration: 2009-05-14

Abstract

The utility model relates to a semiconductor indirect-cooling type refrigerator, which belongs to the field of the semiconductor refrigeration. The semiconductor indirect-cooling type refrigerator is mainly composed of an electric pile 1, a radiator 2, a roller type fan 3, a cool dispersing device 4, an air cooler 5, a freezing chamber 6, a cooling-air returning passage 7, a cooling-air passage 8, a cable 9, etc. After the DC power supply is switched on, the electric pile 1 refrigerates, and heat quantity sucked by a cool end is transferred to the radiator through the other end of the electric pile and is dispersed forcedly by the roller type fan 3. Cool quantity generated by the cool end is transferred to the cool dispersing device 4 and is sucked into the freezing chamber 6 by the air cooler 5 through the cooling-air passage 8, after the heat exchange is conducted, the cool quantity returns to the head end of the cool dispersing device 4 from the cooling-air returning passage 7. The refrigeration cycle is formed. The effects of refreshing and freezing are achieved.

Description

The semiconductor indirect cooling refrigerator

The utility model relates to a kind of semiconductor indirect cooling refrigerator, belongs to the conductor refrigeration field.

At present, the finding semiconductor freezer all is a direct-cooling type.The cold that is produced by refrigerating sheet (pile) conducts to inner container of icebox by metal material, carries out heat exchange.Its shortcoming is that the consumption cold is big; refrigeration speed is too slow; disadvantage is to shut down; in case shut down; the high temperature of fin can be transmitted in the refrigerator by pile rapidly; make the case inherence rise to the temperature very nearly the same with environment temperature in the very short time, longer slightly as downtime, the temperature inside the box can be more taller than environment temperature.Make the article of being preserved in the case rotten, lose refrigerator intrinsic function.

The purpose of this utility model is to overcome the deficiencies in the prior art and shortcoming, and a kind of indirect cooling refrigerator of high-efficiency semiconductor is provided.It is after connecting power supply, and pile produces a large amount of cold conduction and gives cooler, is entered in the case by cold air duct by air-cooler, after the heat exchange, the sucked back cold wind return air channel of cold wind constitutes refrigerant cycles in case, the temperature inside the box descends simultaneously fast, makes the food of putting reach fresh-keeping and refrigerating effect.

In order to achieve the above object, the utility model semiconductor indirect cooling refrigerator is made up of power connection cable, pile, cooler, air-cooler, cold air duct, refrigerator compartment, radiator, drum-type blower fan, casing etc.In order to reach good heat insulation and heat insulation effect, heat-insulation layer need reach 70～100mm; In order to alleviate the heat conduction, the case inner bag is made with the engineering non-toxic plastic.This refrigerator is furnished with temperature controller, and refrigerator compartment can transfer to best low temperature, when the refrigeration temperature reaches when setting temperature, and shutdown automatically.Be provided with at inner container of icebox that cold wind goes out, return air inlet, and stop valve is housed,, keep certain low temperature in the case, thereby reach insulation, purpose of energy saving to prevent cold-hot air convection.This is a key point of the present utility model, compares with other refrigerator, has pollution-freely, and refrigeration speed is fast, power saving, energy-conservation characteristics.

Fig. 1 is the utility model semiconductor indirect cooling refrigerator refrigeration schematic diagram.

Fig. 2 is the utility model semiconductor indirect cooling refrigerator structure chart.

Fig. 3 is the utility model semiconductor indirect cooling refrigerator electrical equipment control schematic diagram.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, the utility model semiconductor indirect cooling refrigerator refrigeration principle as shown in Figure 1.It is mainly by pile 1, radiator 2, drum-type blower fan 3, cooler 4, air-cooler 5, refrigerating chamber 6, cold wind return air channel 7, cold air duct 8, cable 9 compositions such as grade.After pile 1 is connected dc source, by peltier effect, make pile 1 refrigeration, the heat that cold junction is inhaled is conducted to radiator by the other end of pile 1, by drum-type blower fan 3 its forced convection is dissipated.The cold that cold junction produces conducts to cooler 4, enters cold air duct 8 by air-cooler 5 and enters refrigerating chamber 6 heat exchanges, and the cold wind after the exchange is got back to cooler 4 head ends again by cold wind return air duct 7, has constituted refrigerant cycles.

Fig. 2 is this product with the structure chart of novel indirect cooling formula refrigerator, and it is mainly by attaching plug, power supply 10, bonnet 11, drum-type blower fan 3, radiator 2, pile 1, cooler 4, air-cooler 5, cold air duct 8, cold wind air outlet stop valve 12, cold wind return air stop valve 13, cold wind return air channel 7, temperature controller 14, case intraoral illumination lamp 15, refrigerating chamber 6, refrigerator doors 16, casing 17, heat-insulation layer 18, footing 19 compositions such as grade.When the plug that plugs in, after connecting rectifier power source, pile 1 is started working, and cold junction produces a large amount of cold, cooler 4 is given in conduction, by air-cooler 5, by cold air duct 8, cold wind air outlet stop valve 12, enter refrigerating chamber 6, heat exchange is after cold wind return air inlet stop valve 13 through cold wind return air channel 7, is got back to cooler 4 head ends.When reaching when setting temperature, because the effect of temperature controller 14 is stopped power supply.At this moment, cold wind air outlet stop valve 12, cold wind return air inlet stop valve 13 is closed automatically.When freezer temperature goes back up to design temperature, Auto Power On refrigeration.

Fig. 3 is the electrical equipment control schematic diagram of the utility model semiconductor indirect cooling refrigerator.

It is by attaching plug, and refrigeration power supply 21 is controlled power supply 22, rectifier 23, and filter capacitor 24, pile 1, switching relay 25, phase reversal relay 26, temperature controller 27, travel switch K1, K2, K3, CD-ROM drive motor M, chamber door lamp control switch K4, illuminating lamp S forms.When the plug that plugs in, temperature controller 27, switching relay 25, phase reversal relay 26 is opened, and electric current is by phase reversal relay J2-1, normal battle of J3-1, the J3-2 of the normal battle of J2-2 and switching relay, travel switch K1 just changes CD-ROM drive motor M, and K2, K3 open simultaneously, the refrigeration power work, K1 quits work.CD-ROM drive motor M stops, and has drawn back the stop valve of air outlet simultaneously, the cold wind circulating cooling.Reduce to when setting temperature when the temperature inside the box, temperature J1 disconnects, switching relay 25, and phase reversal relay 26 discharges.J2-1, J2-2 and J3-1, the normally closed point of J3-2 are connected, current opposite in direction, and K3 makes CD-ROM drive motor M reversing, and K2, K3 close.CD-ROM drive motor stops operating, and closes air-out return air inlet stop valve, refrigeration power supply 21 outage stopping refrigeration, and when temperature rise in the case during to the temperature that sets, refrigerator is from new startup refrigeration.

Claims

1, the semiconductor indirect cooling refrigerator, comprise casing (17), refrigerator doors (16), bonnet (11), power supply, thermostat, be provided with the pile (1) that joins with power supply in the casing, it is characterized in that: described pile (1) cold junction links to each other with cooler (4), and cooler communicates with refrigerating chamber (6) by cold air duct (8), is provided with air-cooler (5) between cooler and the cold air duct, also be provided with cold wind return air channel (7) between refrigerating chamber (6) and cooler (4) head end, form refrigerant cycles, pile (1) other end links to each other with radiator (2), and radiator is provided with can be to the drum-type blower fan (3) of its forced convection.

2, semiconductor indirect cooling refrigerator according to claim 1 is characterized in that: be provided with air insulating (18) between described refrigerating chamber (6) and the cooler (7).

3, semiconductor indirect cooling refrigerator according to claim 1 and 2 is characterized in that: described cold air duct (8) is provided with cold wind air outlet stop valve (12), and described cold wind return air channel (7) is provided with cold wind return air inlet stop valve (13).