CN1210240A

CN1210240A - Cooling apparatus of electronic refrigerator

Info

Publication number: CN1210240A
Application number: CN98108015A
Authority: CN
Inventors: 李龙权
Original assignee: Daewoo Electronics Co Ltd
Current assignee: WiniaDaewoo Co Ltd
Priority date: 1997-08-29
Filing date: 1998-04-06
Publication date: 1999-03-10
Also published as: JPH1183268A

Abstract

The present invention relates to a cooling apparatus of electronic refrigerator. A thermal conductive band element is disposed on a back surface of a cabinet to generate cold air by a Peltier effect. A radiating plate provided near the element has cooling fins. An oil cover surrounding the fins stores oil therein. A cooling means forcibly cools the oil stored in the cover. A heat absorbing plate brought at one side into contact with the element absorbs heat from the element to transmit cold air into the refrigerator. Accordingly, its cooling efficiency is improved. And hence, it can be widely popularized as a home refrigerator.

Description

The refrigerating plant of electronic refrigerator

The present invention relates to the refrigerating plant of electronic refrigerator, specially refer to the refrigerating plant of the electronic refrigerator that is used to produce cold air.

Usually, domestic refrigerator is divided into ice refrigeration-type refrigerator, absorption refrigerator, refrigerator and electronic refrigerator according to the refrigerating plant that produces cold air.

Refrigerator is widely used as in these refrigerators and is domestic refrigerator, but electronic refrigerator is because the electronic cooling effect is lower than refrigerator more or less, so be not commonly used.Yet, carried out recently strengthening the electronic refrigerator Research on effect.

Above-mentioned electronic refrigerator utilizes so-called Peltier effect (Peltier Effect), promptly connects when flowing by two kinds of different metals when electric current, produces or absorption heat and the cooling or the heating that take place.In the electronic refrigerator of using Peltier effect, owing to need not use the pipeline configuration that forms kind of refrigeration cycle, thus make refrigerator structure very simple.

The refrigerating plant of traditional electronic refrigerator, as shown in Figure 1, by thermoelectric element 101, the cooling of distribute heat thorn 102 absorbs or formations such as the refrigerator 103 of distribute heat and fan 104 from thermoelectric element 101.

Thermoelectric element 101 receives the electric current of supplying with from the power supply (not shown) and makes cooling on every side by Peltier effect.

Fan 104 rotation under CD-ROM drive motor M drives, and be fixed to by one group of fixture 105 on the wall of casing 106, it promptly distributes the heat around the cooling thorn 102.

Yet in the refrigerating plant of the electronic refrigerator with said structure, because the carrying out of refrigerating operation only depends on thermoelectric element, refrigerating efficiency is low.Therefore, it is simple in structure although have the thermoelectric cooling refrigerator of said structure, also is not widely used in the domestic refrigerator.

Therefore, the present invention is intended to overcome the problem that exists in the above-mentioned technology formerly, in view of the above, the objective of the invention is to, and a kind of refrigerating plant of electronic refrigerator is provided, and it has improved refrigerating efficiency, and can be widely used as domestic refrigerator.

For achieving the above object, the refrigerating plant of electronic refrigerator provided by the invention comprises, is arranged on the thermoelectric element at casing rear portion, produces cold air by Peltier effect; Heat sink with the adjacent installation of thermoelectric element with cooling thorn; Be looped around the cooling thorn oilcan that is used for oil storage on every side; Make the oil that is stored in the oilcan force the cooling piece of cooling; And absorber plate, the one side contacts with thermoelectric element so that absorb the heat of thermoelectric element, makes cold air import refrigerator into thus.

Preferably mode is, cooling piece can comprise a cooling tube and a cooling fan, and an end of cooling tube immerses in the oil of oilcan, and the other end enters in the oil via cabinet exterior, forces to brush cooling tube by cooling fan.And cooling tube can have spiral helicine coil pipe portion between two ends.Better mode is, cooling fan can be installed in the coil pipe portion, makes the oil that flows through cooling tube by air cooling.Cooling piece can comprise the non-woven fibre that is arranged in the oilcan, and the one end immerses in the oil and contacts with oil; A cooling fan is towards the non-woven fibre that rotates with contained oil; Be arranged at the upper and lower guide wheel of oilcan top and bottom respectively rotationally, non-woven fibre is wound on the guide wheel; And the CD-ROM drive motor of a driving guide wheel.Have again, can many holes be set on the non-woven fibre surface to hold oil.

Thereby, have the electronic refrigerator of refrigerating plant of the present invention, because the refrigerating efficiency of its enhancing can be widely used in the domestic refrigerator.

Above-mentioned purpose of the present invention and other advantages will be by more clear below in conjunction with the accompanying drawing detailed description of the preferred embodiment.

Fig. 1 is the sectional view of conditional electronic refrigerator,

Fig. 2 is the schematic diagram of electronic refrigerator that the refrigerating plant of one embodiment of the invention is installed,

Fig. 3 is the zoomed-in view of the refrigerating plant major part of Fig. 2,

Fig. 4 is the schematic diagram of electronic refrigerator that the refrigerating plant of another embodiment of the present invention is installed, and

Fig. 5 is the zoomed-in view of the refrigerating plant major part of Fig. 4.

Below in conjunction with accompanying drawing the embodiment of the invention is described.

Fig. 2 is the schematic diagram of electronic refrigerator that the refrigerating plant of the embodiment of the invention is installed.As shown in Figure 2, refrigerating plant according to the present invention is positioned at the back of casing 1, this refrigerating plant in casing refrigerating chamber and the food fresh keeping chamber in the cold air that supply with to produce.

Refrigerating plant comprises 7, one cooling pieces of 5, one oilcans of 3, one heat sinks of a thermoelectric element, and an absorber plate, or the like.

Thermoelectric element 3 is positioned at the back of casing 1, produces cold air by Peltier effect.

Heat sink 5 is fixedly mounted on and thermoelectric element 3 position adjacent, and one group is used to absorb with the cooling of distribute heat and stings 4 integral installations at heat sink 5.

Oilcan 7 is installed on casing 1 outer surface around the cooling thorn 4 of heat sink 5, and oil 6 is stored in the oilcan 7.Air enters the hole 2 that is arranged on the upper wall, and extraneous air is flowed into.

Absorber plate 9 is fixed on the inwall of casing 1, and a side of absorber plate 9 contacts with a side of thermoelectric element 3, absorbs the heat that comes from thermoelectric element 3 in view of the above, imports cold air into refrigerator.

The oil 6 that cooling piece 11 will be stored in the oilcan 7 is forced cooling, makes the cooling effect of the cold air that produces by thermoelectric element 3 more strengthen.As shown in Figure 3, cooling piece 11 is made up of a cooling tube 13 and a cooling fan 15.One end of cooling tube 13 immerses in the oil 6 of 7 li of oilcans, and its other end enters in the oil 6 through casing 1 outside.Be spiral helicine coil portions between cooling tube 13 two ends.In addition pump 14 is installed in an end of cooling tube 13, oil 6 is circulated by cooling tube 13 by the running of pump 14.Cooling fan 15 is installed in the coil portions, drives rotation by motor M, to force to brush cooling tube 13.Therefore, brushing of the coil portions surface of 15 pairs of cooling tubes 13 of cooling fan makes that the oil 6 in the cooling tube 13 is cooled indirectly.

Below, will the running and the effect of the refrigerating plant of electronic refrigerator of the present invention be described.

When refrigerating plant of the present invention turned round, the electric current that is provided by power supply entered in the thermoelectric element 3.Thus, by thermoelectric element 3, absorber plate 9 and cooling thorn 4 produce cold air.As previously discussed, cold air is produced by thermoelectric element 3, and the cooling piece 11 that is installed in casing 1 outer surface turns round simultaneously, makes cooling effect greatly strengthen.Be of the pumping of the oil 6 of 7 li of oilcans, by cooling tube 13 circulations by pump 14.Have, when cooling fan 15 was driven, the oil 6 in the cooling tube 13 was cooled off indirectly again, flowed back to oilcan 7 after the oil 6 that cycles through cooling tube 13 is cooled.Therefore, the oil 6 on the heat sink 5 is cooled off rapidly.In view of the above, because radiating effect strengthens greatly, refrigeration has just strengthened greatly.

Fig. 4 and Fig. 5 show the embodiment of another refrigerating plant of the present invention.As shown in the figure, refrigerating plant comprises 55, one oilcans 57 of 53, one heat sinks of a thermoelectric element, non-woven fibre 60, and an absorber plate 59 etc.

Thermoelectric element 53 is positioned at the back of casing 51, produces cold air by Peltier effect.

Heat sink 55 is adjacent to be fixedly mounted on casing 51 outer surfaces with thermoelectric element 53, and one group of cooling thorn 54 that is used to strengthen radiating effect is provided on this heat sink simultaneously.

Oilcan 57 is installed on casing 51 outer surfaces around the cooling thorn 54 of heat sink 55, and oil 56 is stored in the oilcan 57.

Unit spins that fiber 60 is arranged in the oilcan 57 and moves up and down with contained oil by guider.

Cooling fan 65 is fixedly mounted on oilcan 57 upper inside surface, does not contact with oil 56, will force the oil 56 in the mobile non-woven fibre 60 that contains oil 56 to cool off by guider.

Absorber plate 59 is fixed on the inwall of casing 51, and a side of absorber plate 59 contacts with a side of thermoelectric element 53, so that absorb heat from thermoelectric element 53.

The guider that is used for mobile non-woven fibre 60 comprises upper block and

lower tumbler

61,62, and these two guide wheels are installed in rotation on the top and the bottom of oilcan 57 respectively, and CD-ROM drive motor M is connected on the upper block 61.Non-woven fibre 60 is wound on upper block and the

lower tumbler

61,62, moves along with the rotation of upper block and lower tumbler 61,62.And, have many holes 63 on the surface of non-woven fibre 60 and be used to hold a large amount of oil 56.

Below, will the running and the effect of the refrigerating plant that uses the foregoing description be described.

When refrigerating plant turned round, the electric current that power supply provides entered in the thermoelectric element 53.Thus, by thermoelectric element 53, absorber plate 59 and cooling thorn 54 grades produce cold air.Simultaneously, power supply also provides power to the CD-ROM drive motor M and the cooling fan 65 that are installed on casing 51 outer surfaces, to drive CD-ROM drive motor M and cooling fan 65.

When CD-ROM drive motor M was driven in rotation, upper block 61 rotations were wound on upper block and the

lower tumbler

61,62 non-woven fibre 60.Have many holes 63 owing to be wound on the non-woven fibre 60 on upper block and the

lower tumbler

61,62, a large amount of oil 56 is accommodated in hole 63 and the non-woven fibre 60 itself.

Therefore, fan 65 coolings because a large amount of oil 56 is cooled, the oil 56 that is stored in the oilcan 57 is cooled off rapidly, makes radiating effect strengthen, and cooling effect also strengthens thereupon.

According to the present invention, as mentioned above, refrigeration strengthens, and makes electronic refrigerator can be widely used as domestic refrigerator.

The present invention describes in detail in the above by preferred embodiment, but the present invention is not limited to the foregoing description.Obviously, those skilled in the art can modify the present invention as described above under the situation that does not exceed essence of the present invention or scope.The present invention is limited by following appended claim.

Claims

1. the refrigerating plant of an electronic refrigerator comprises:

Be positioned at the thermoelectric element at casing rear portion, this thermoelectric element produces the cooling air by Peltier effect;

Heat sink, the adjacent installation of this heat sink and thermoelectric element, and have the cooling thorn;

Oilcan around the cooling thorn stores oil in this oilcan;

Cooling piece is used for forcing to cool off the oil that is stored in oilcan; And

Absorber plate, the one side contacts so that absorb the heat that comes from thermoelectric element with thermoelectric element, imports cold air into refrigerator thus.

2. according to the refrigerating plant of the electronic refrigerator of claim 1, it is characterized in that cooling piece comprises cooling tube and a cooling fan, in the oil in the end immersion oilcan of cooling tube, its other end enters in the oil through the casing outside, and described cooling fan is forced to brush to cooling tube.

3. according to the refrigerating plant of the electronic refrigerator of claim 2, it is characterized in that having spiral coil pipe portion between the two ends of cooling tube.

4. according to the refrigerating plant of the electronic refrigerator of claim 3, it is characterized in that, in the coil pipe portion cooling fan is installed.

5. according to the refrigerating plant of the electronic refrigerator of claim 1, it is characterized in that cooling piece comprises the non-woven fibre that is installed in the oilcan, one is partially submerged in to inhale in the oil and holds oil; One towards the cooling fan with the non-woven fibre that rotates in oil-containing; Be installed in rotation on the upper block and the lower tumbler of the upper and lower part of oilcan respectively, non-woven fibre is wound on the upper and lower guide wheel, and the CD-ROM drive motor that is used to drive guide wheel.

6. according to the refrigerating plant of the electronic refrigerator of claim 5, it is characterized in that the non-woven fibre surface has one group of hole to hold oil.