CN2669103Y - DC power supply devic3e for electric refrigerator - Google Patents
DC power supply devic3e for electric refrigerator Download PDFInfo
- Publication number
- CN2669103Y CN2669103Y CNU2003201252844U CN200320125284U CN2669103Y CN 2669103 Y CN2669103 Y CN 2669103Y CN U2003201252844 U CNU2003201252844 U CN U2003201252844U CN 200320125284 U CN200320125284 U CN 200320125284U CN 2669103 Y CN2669103 Y CN 2669103Y
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- refrigerator
- heat
- semiconductor generator
- conducting block
- fitted
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Abstract
The utility model discloses a DC power supply device for an electric refrigerator, comprising refrigerator electric components with the DC power supply. The utility model is characterized in that a semiconductor power generator is arranged on the refrigerator, the semiconductor power generator and the refrigerator electric components are composed to a closed return circuit, the cold end of the semiconductor power generator exchanges heat with a refrigerator evaporator, cold air flowed through the evaporator or a freezing cavity casing, and so a temperature difference is existed between the cold end and the hot end of the semiconductor power generator. The utility model changes the power supply module of the refrigerator electric components that the general power is transformed the voltage and rectified to the direct current power, reduces the power consumption of the refrigerator, has the advantages of energy saving and environment protection, and has extensive application on the refrigerating devices comprising refrigerators, refrigerating cabinets etc.
Description
Technical field
The utility model relates to DC suppling device, more particularly, relates to a kind of DC suppling device of using the Seebeck effect exploitation.
Background technology
Thermoelectric is the science that research heat energy and electric energy are directly changed.The Germany scientist Seebeck had at first been found thermoelectric first effect in 1821, people are referred to as Seebeck effect--and two kinds of different metals constitute the closed-loop path, when there is the temperature difference in two joints, will produce electric current in the loop, this effect becomes the technical foundation of thermo-electric generation.
Early 1960s just has a collection of thermoelectric generator to be successfully used to space, ground and ocean.In fact the thermocouple that temperature survey is used is exactly a typical thermoelectric generator, does not use but be used as power supply.Because thermoelectric generator efficient is lower, generally be not more than 8%, so its range of application is restricted.In recent years, along with continuous advancement in technology, thermoelectric generator is used widely gradually.Now, the thermoelectric (al) cooling material of performance the best of practicability is Bi2Te3-Sb2Te3-Sb2Se3 and alloy thereof, the maximum figure of merit 3.5 * 10
-3/ ℃, the maximum temperature difference of the single-stage refrigerating assembly of making of this material can reach more than 70 ℃.
Along with the appearance of computer refrigerator, some need the electrical part of low-voltage dc power supply to be applied on the refrigerator, for example refrigerator control circuit board, LCD etc.It is the direct current light current of 12V with rectifier with 220 voltage transition that exchange that refrigerator on the market, its control circuit board need transformer, because transformer and rectification circuit have bigger no-load current, causes electric energy loss.On the other hand, because the power supply of circuit board is not had and mains isolation, therefore produced the external electromagnetic radiation of refrigerator.
The utility model content
The technical problem that the utility model is intended to solve provides a kind of DC suppling device of using the Seebeck effect generating, and this device utilizes refrigerator itself to have the temperature difference, reduces the power consumption of refrigerator, reduce the cost of refrigerator, and environmental protection is reliable.
The scheme that solves the problems of the technologies described above is such: a kind of refrigerator DC suppling device, the refrigerator electrical part that comprises direct current supply, it is characterized in that: semiconductor generator is set on refrigerator, described semiconductor generator and refrigerator electrical part are formed the closed-loop path, the cold air of the cold junction of semiconductor generator and evaporator of refrigerator or the evaporimeter of flowing through or frozen chamber shell heat exchange make it to have the temperature difference with the hot junction of semiconductor generator.
In above-mentioned refrigerator DC suppling device, be connected mu balanced circuit between semiconductor generator and electrical part.Heat-conducting block is established in the hot junction of semiconductor generator, establishes conduction pathway in alveolar layer, and heat-conducting block passes conduction pathway and extraneous heat exchange.
In above-mentioned refrigerator DC suppling device, the cold junction of described semiconductor generator and evaporimeter heat transfer plate are fitted, and heat-conducting block and refrigerator backplate are fitted.Or: the cold junction of semiconductor generator and freezer compartment of refrigerator chamber shell are fitted, and heat-conducting block is fitted with the refrigerator side plate that is pasted with condenser or fitted with the back base plate at top, freezer compressor storehouse.Or: the cold junction of semiconductor generator and freezer compartment of refrigerator chamber shell are fitted, and described heat-conducting block passes described conduction pathway and enters in the freezer compressor storehouse.Above-mentioned electrical part is the refrigerator control circuit board.Above-mentioned heat-conducting block comprises the metal column that an end links to each other with the semiconductor generator hot junction and the metallic plate of the metal column other end.
Implement the refrigerator DC suppling device that the utility model provides, compared with prior art, have the following advantages and beneficial effect:
1. changed electrical part and be rectified into the power supply mode of direct current, reduced refrigerator power consumption by the civil power transformation.
2. replace transformer and rectifier with semiconductor generator, reduced the cost of refrigerator.
3. use the refrigerator of DC suppling device to save the energy, have the advantage of environmental protection.
Description of drawings
Fig. 1 is the semiconductor generator structural representation that the utility model refrigerator DC suppling device adopts;
Fig. 2 is the schematic diagram of prior art control circuit board 220V Alternating Current Power Supply;
Fig. 3 is a control circuit board DC power-supply circuit block diagram in the utility model refrigerator DC suppling device;
Fig. 4 is the structural representation of the utility model refrigerator DC suppling device embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 shows the structure of semiconductor generator, the semiconductor chip 10 that is composed in series side by side by right N type of some and P-type semiconductor, the two ends of each N-type semiconductor link to each other with metallic conductor 8 with adjacent two different P-type semiconductors respectively, two end faces of semiconductor chip 10 are insulating ceramic films 9, lead 11 couples together semiconductor generator and refrigerator control circuit board 5, forms a closed-loop path.In the both ends of the surface of semiconductor generator, the cold air of an end face and evaporator of refrigerator or the evaporimeter of flowing through or frozen chamber shell heat exchange are referred to as cold junction, and its opposite end then is the hot junction, and there are the temperature difference in cold junction and hot junction.Be provided with the heat-conducting block that conducts heat with the refrigerator external world or outcase of refrigerator on the hot junction, heat-conducting block comprises the metal column 6 that links to each other with the semiconductor generator hot junction and the metallic plate 7 of the metal column other end.
Referring to Fig. 2, in the prior art, the direct current light current that is converted into 12V behind the alternating current process transformer change voltage of 220V and the rectifier rectification because transformer and rectification circuit have bigger no-load current, has caused bigger electric energy loss to the power supply of refrigerator control circuit board.
Referring to Fig. 3, mainly the electric organ of being made up of semiconductor chip produces direct current light current, after the mu balanced circuit voltage stabilizing, provides the direct current of 3V～12V to control circuit board.
Fig. 4 illustrates two kinds of embodiments that semiconductor generator are placed on diverse location, the power consumption of refrigerator control circuit board is in 3W～10W scope, but the cold and hot semiconductor chip generated output of monolithic reaches 10W--20W, can guarantee the electric power of circuit board fully, the cold junction of the semiconductor chip of a slice 50mm * 50mm * 5mm size is arranged on the place of refrigerator lower temperature: as freezing chamber shell, evaporimeter, be wired to control circuit board, supply with the direct current of its 3V～12V.1 is refrigerating chamber among Fig. 4, the 2nd, and refrigerating chamber, control circuit board 5 places refrigerator back top, and forms the closed-loop path (not shown) with semiconductor generator 3.Establish conduction pathway in alveolar layer, the heat-conducting block of semiconductor generator passes this conduction pathway and extraneous heat exchange.The cold junction of semiconductor generator is fitted in the freezing chamber shell of the low temperature of refrigerator both sides, and cold conducts to the cold junction of electric organ by contact, makes the temperature of cold junction reach lower level.Heat-conducting block is fitted with the refrigerator side plate that is pasted with condenser or is fitted with the back base plate at top, freezer compressor storehouse, makes the temperature in hot junction higher, has a fixed difference difference with cold junction.
As another kind of embodiment, the cold junction of semiconductor generator and evaporimeter heat transfer plate 4 are fitted, the heat-conducting block of electric organ and refrigerator backplate are fitted.Or the cold junction of semiconductor generator and freezer compartment of refrigerator chamber shell are fitted, heat-conducting block passes described conduction pathway and enters in the freezer compressor storehouse, make cool and heat ends keep the purpose of a fixed difference difference, in the loop of forming with control circuit board, generate electric current, control circuit board is powered.
Claims (9)
1. refrigerator DC suppling device, the refrigerator electrical part that comprises direct current supply, it is characterized in that: the semiconductor generator with hot junction and cold junction is set on refrigerator, described semiconductor generator and described refrigerator electrical part are formed the closed-loop path, the cold air of the cold junction of described semiconductor generator and evaporator of refrigerator or the evaporimeter of flowing through or frozen chamber shell heat exchange make it to have the temperature difference with the hot junction of described semiconductor generator.
2. according to the described refrigerator DC suppling device of claim 1, it is characterized in that, between described semiconductor generator and described electrical part, be connected with mu balanced circuit.
3. according to the described refrigerator DC suppling device of claim 2, it is characterized in that the hot junction of described semiconductor generator is provided with heat-conducting block, described heat-conducting block passes conduction pathway and the extraneous heat exchange that is located in the alveolar layer.
4. according to the described refrigerator DC suppling device of claim 3, it is characterized in that the cold junction of described semiconductor generator and the heat transfer plate of described evaporimeter are fitted, described heat-conducting block and refrigerator backplate are fitted.
5. according to the described refrigerator DC suppling device of claim 3, it is characterized in that, the cold junction of described semiconductor generator and freezer compartment of refrigerator chamber shell are fitted, and described heat-conducting block is fitted with the refrigerator side plate that is pasted with condenser or fitted with the back base plate at top, freezer compressor storehouse.
6. according to the described refrigerator DC suppling device of claim 3, it is characterized in that the cold junction of described semiconductor generator and freezer compartment of refrigerator chamber shell are fitted, described heat-conducting block passes described conduction pathway and enters in the freezer compressor storehouse.
7. according to any one described refrigerator DC suppling device among the claim 1-6, it is characterized in that described electrical part is the refrigerator control circuit board.
8. according to claim 3 or 4 or 5 or 6 described refrigerator DC suppling devices, it is characterized in that described heat-conducting block comprises the metal column that an end links to each other with described semiconductor generator hot junction and the metallic plate of the metal column other end.
9. according to the described refrigerator DC suppling device of claim 7, it is characterized in that described heat-conducting block comprises the metal column that an end links to each other with described semiconductor generator hot junction and the metallic plate of the metal column other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201252844U CN2669103Y (en) | 2003-12-22 | 2003-12-22 | DC power supply devic3e for electric refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201252844U CN2669103Y (en) | 2003-12-22 | 2003-12-22 | DC power supply devic3e for electric refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669103Y true CN2669103Y (en) | 2005-01-05 |
Family
ID=34439329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201252844U Expired - Fee Related CN2669103Y (en) | 2003-12-22 | 2003-12-22 | DC power supply devic3e for electric refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2669103Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438607A (en) * | 2013-08-29 | 2013-12-11 | 顺德职业技术学院 | Magnetic fluid heat pipe semiconductor electronic refrigerator |
-
2003
- 2003-12-22 CN CNU2003201252844U patent/CN2669103Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438607A (en) * | 2013-08-29 | 2013-12-11 | 顺德职业技术学院 | Magnetic fluid heat pipe semiconductor electronic refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |