CN203071070U - Composite power supply of solar cell-thermoelectric cell - Google Patents
Composite power supply of solar cell-thermoelectric cell Download PDFInfo
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- CN203071070U CN203071070U CN 201220730445 CN201220730445U CN203071070U CN 203071070 U CN203071070 U CN 203071070U CN 201220730445 CN201220730445 CN 201220730445 CN 201220730445 U CN201220730445 U CN 201220730445U CN 203071070 U CN203071070 U CN 203071070U
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Abstract
The utility model relates to a composite solar cell-thermoelectric cell power supply, which comprises a solar cell and a thermoelectric cell. The composite power supply is characterized in that the hot-end substrate of the thermoelectric cell is integrally coupled with the backlight substrate surface of the solar cell in a seamless way. The cold-end substrate surface of the thermoelectric cell is provided with an emission coating layer. By making the hot-end substrate of the thermoelectric cell coupled on the substrate surface of the solar cell in a seamless way and further using the solar light for photovoltaic generation, the power supply makes effective use of the afterheat on the backlight face of the solar cell for thermoelectric generation. The heat is thus made full use. Meanwhile, the overall conversion efficiency of the composite power supply is increased.
Description
Technical field
The utility model belongs to photoelectricity, temperature difference power technique fields, particularly relates to a kind of composite power source of solar cell-thermoelectric cell.
Background technology
Solar cell is strong in the demand of space field, no matter is gallium arsenide solar cell or flexible thin-film solar cell, all facing to a difficult problem that how further to improve the cell photoelectric conversion efficiency.People all concentrating thinking how further to optimize battery structure, are also containing the not utilization of huge heat energy and ignored the solar cell back of the body end.If utilize existing energy-conversion technique, be electric energy with this part thermal power transfer, the raising of space power system system capacity conversion efficiency will be pointed the day and await for it.
Thermoelectric cell is a kind of solid state energy conversion equipment that heat energy directly can be converted to electric energy, has characteristics such as volume is little, quiet, the life-span long, radiation resistance is good, is that the ideal of spacecraft power-supply system is selected.But because the conversion efficiency of thermoelectric relatively low (being no more than 10%) of this power supply makes its application be subjected to certain restriction.
Solar cell and thermoelectric cell belong to physical power source together, all are to carry out power conversion by physical process.If thermoelectric cell is coupling in solar cell surface backlight, the heat that takes full advantage of the solar cell back of the body end generates electricity, and can make the energy of overall power system realize stack, the whole efficient that promotes power-supply system.
Present known solar cell-thermoelectric cell compound electricity generation system all adopts light splitting technology to realize, the sunlight that is about to different wave length is collected, and is respectively the generating of solar cell and thermoelectric cell thermal source is provided.This electricity generation system organically combines the photoelectric heat power technology, has improved the utilance of solar energy, makes originally and can not produce electric energy by the thermoelectric technology for the luminous energy that solar cell absorbs.The present popularity of this technology is not high, mainly is the cost of manufacture height; In addition, these two kinds of batteries are powered respectively in some sense, are not composite power source truly, also can't realize the stack of power source integral conversion efficiency.
Find that through retrieval application number is 201110373913.4, publication number is CN102437212A, patent name is: the patent of invention of a kind of photoelectricity-thermoelectric integral battery component, disclose in its specification the thermoelectric assembly has been embedded in the honeycomb core in the insulated substrate under the solar cell piece lower surface substrate, utilized the temperature difference of substrate upper and lower surface to generate electricity.The weak point of this invention is the heat of solar cell lower surface through conducting to the thermoelectric cell hot junction layer by layer, and thermal loss is obvious, and adopts conventional thermoelectric device and solar cell piece is integrated does not have weight advantage, and is difficult for setting up the temperature difference.
Summary of the invention
The utility model has less thermal loss for the technical problem that exists in the solution known technology provides a kind of, the work temperature difference is big, the composite power source of a kind of solar cell-thermoelectric cell that energy conversion efficiency is high.
The technical scheme that the utility model adopts is:
A kind of composite power source of solar cell-thermoelectric cell, comprise solar cell and thermoelectric cell, be characterized in: the hot junction substrate of described thermoelectric cell and the substrate surface backlight of solar cell are coupled as one continuously, and the cold junction substrate surface of described thermoelectric cell is shaped on emission coating.
The utility model can also adopt following technical scheme:
Described solar cell is monolithic three joint GaInP
2/ GaAs/Ge solar cell, described thermoelectric cell are BiTe base film thermoelectric cell.
The described hot junction substrate that is coupled as thermoelectric cell continuously is attached on the substrate surface backlight of solar cell through couplant.
Describedly be coupled as the thermoelectric cell that direct growth thermoelectric film and conductive layer form on solar cell substrate backlight continuously.
Described couplant is organic heat-conducting silicone grease.
The substrate of described thermoelectric cell and solar cell is polyimide film.
Advantage and the good effect that the utlity model has are:
1, the utility model is coupling in the hot junction of thermoelectric cell the substrate surface of solar cell continuously, when utilizing sunlight to carry out photovoltaic generation, effectively utilized solar cell shady face waste heat to carry out thermo-electric generation, when fully carrying out Btu utilization, realized the lifting of the whole conversion efficiency of composite power source;
2, the utility model has adopted thin film temperature difference battery and gallium arsenide solar cell to carry out compound, and make the two use identical backing material, not only the composite power source overall weight is light but also improved solar cell and the matching of thermoelectric cell aspect heat conduction and weight;
3, the utility model is made the emission coating of the organosilicon work with high emissivity at the cold junction substrate surface of thermoelectric cell, effectively having improved the heat of thermoelectric cell cold junction evacuates, strengthen the work temperature difference of hybrid power system, further improved the energy conversion efficiency of hybrid power system.
Description of drawings
Fig. 1 is the structural representation of the utility model solar cell-thermoelectric cell composite power source.
Among the figure, 1-solar cell, 2-P type thermoelement, 3-N type thermoelement, 4-cold junction conductive layer, 5-substrate.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
A kind of composite power source of solar cell-thermoelectric cell comprises solar cell and thermoelectric cell.
Innovative point of the present utility model comprises:
The hot junction substrate of described thermoelectric cell and the substrate surface backlight of solar cell are coupled as one continuously, and the cold junction substrate surface of described thermoelectric cell is shaped on emission coating.
Innovative point of the present utility model also comprises:
Described solar cell is monolithic three joint GaInP
2/ GaAs/Ge solar cell, described thermoelectric cell are BiTe base film thermoelectric cell.
The described hot junction substrate that is coupled as thermoelectric cell continuously is attached on the substrate surface backlight of solar cell through couplant.
Describedly be coupled as the thermoelectric cell that direct growth thermoelectric film and conductive layer form on solar cell substrate backlight continuously.
Described couplant is organic heat-conducting silicone grease.
The substrate of described thermoelectric cell and solar cell is polyimide film.
A kind of manufacturing process of the present utility model:
With reference to accompanying drawing 1:
⑴ select monolithic three joint GaInP for use
2/ GaAs/Ge solar cell 1, solar cell backing material are the flexible polyimide film, and the thickness of solar cell is all about 140 μ m;
⑵ adopt the method for magnetron sputtering directly Ni to be produced on the flexible polyimide film cold junction substrate 5 as cold junction conductive layer 4, adopt spraying technology to make the organic silicon coating with high emissivity at the cold junction substrate surface, the material of hot junction conductive layer and manufacture method and cold junction conductive layer are identical, but flexible polyimide film hot junction substrate need not made emission coating; Take the method for magnetron sputtering between the cool and heat ends conductive layer, grow N-type thermoelement 3 and P type thermoelement 2, all thermoelements all are integrated and connected with series system, draw the both positive and negative polarity lead from the cold junction lead-out terminal, make the BiTe base film thermoelectric cell of thickness about 140 μ m;
⑶ will be coated between solar cell substrate surface backlight and the thin film temperature difference battery hot junction substrate as organic heat-conducting silicone grease of couplant, carry out the direct coupling of thermoelectric cell and solar cell, during coupling, gimmick by the abduction that tiles repeatedly, drive and get rid of bubble between the two, finishing the utility model overall dimension shown in Figure 1 is 39.8mm * 60.4mm * 0.175mm, and effectively generating area is 23.88cm
2Solar cell-thermoelectric cell composite power source.
Above-mentioned solar cell-thermoelectric cell composite power source directly is coupled thin film temperature difference battery and gallium arsenide solar cell, and the two uses identical backing material, reaches weight and mates mutually; In addition, thin film temperature difference battery can be on very little area integrated hundreds of even thousands of to thermoelement, even under 1 ℃ of temperature difference, also have tangible electricity output, can effectively utilize solar cell shady face back of the body end temperature to generate electricity.This solar cell-thermoelectric cell composite power source virtual space AM
0Condition is carried out work, under this condition at the bottom of the back of the body of solar cell temperature be 80 ℃, with heat input 10W, 10 ℃ of work temperature difference are calculated, the thermoelectric cell electrical power is output as 323mW, the conversion efficiency that can make composite power source have 3 percentage points promotes.
Another kind of manufacturing process of the present utility model:
Adopt the method for magnetron sputtering directly grow successively hot junction conductive layer, N-type thermoelement, P type thermoelement at solar cell shady face substrate, all the other production methods are identical with last a kind of manufacturing process, the hot junction substrate and the solar cell shady face substrate that are thin film temperature difference battery are same substrate, make solar cell-thermoelectric cell composite power source.
Although by reference to the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms.These structures all belong within the protection range of the present utility model.
Claims (6)
1. the composite power source of a solar cell-thermoelectric cell, comprise solar cell and thermoelectric cell, it is characterized in that: the hot junction substrate of described thermoelectric cell and the substrate surface backlight of solar cell are coupled as one continuously, and the cold junction substrate surface of described thermoelectric cell is shaped on emission coating.
2. according to the composite power source of the described a kind of solar cell-thermoelectric cell of claim 1, it is characterized in that: described solar cell is monolithic three joint GaInP
2/ GaAs/Ge solar cell, described thermoelectric cell are BiTe base film thermoelectric cell.
3. according to the composite power source of claim 1 or 2 described a kind of solar cell-thermoelectric cells, it is characterized in that: the described hot junction substrate that is coupled as thermoelectric cell continuously is attached on the substrate surface backlight of solar cell through couplant.
4. according to the composite power source of claim 1 or 2 described a kind of solar cell-thermoelectric cells, it is characterized in that: describedly be coupled as the thermoelectric cell that direct growth thermoelectric film and conductive layer form on solar cell substrate backlight continuously.
5. according to the composite power source of the described a kind of solar cell-thermoelectric cell of claim 3, it is characterized in that: described couplant is organic heat-conducting silicone grease.
6. according to the composite power source of claim 1 or 2 described a kind of solar cell-thermoelectric cells, it is characterized in that: the substrate of described thermoelectric cell and solar cell is polyimide film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730445 CN203071070U (en) | 2012-12-26 | 2012-12-26 | Composite power supply of solar cell-thermoelectric cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220730445 CN203071070U (en) | 2012-12-26 | 2012-12-26 | Composite power supply of solar cell-thermoelectric cell |
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| CN203071070U true CN203071070U (en) | 2013-07-17 |
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| CN 201220730445 Expired - Fee Related CN203071070U (en) | 2012-12-26 | 2012-12-26 | Composite power supply of solar cell-thermoelectric cell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552156A (en) * | 2015-12-11 | 2016-05-04 | 河北大学 | Heat collection type light and heat-cascaded power source device and preparation method thereof |
| CN106208814A (en) * | 2016-09-18 | 2016-12-07 | 电子科技大学 | A kind of method utilizing satellite external surface thermograde to carry out generating electricity |
| CN106784106A (en) * | 2016-12-23 | 2017-05-31 | 杭州大和热磁电子有限公司 | A kind of semiconductor module of dual generating |
| CN109104138A (en) * | 2018-06-22 | 2018-12-28 | 东华大学 | A kind of flexible film-like photo-thermal power conversion device |
| CN109524496A (en) * | 2018-11-22 | 2019-03-26 | 北京临近空间飞行器系统工程研究所 | A kind of full-time solar battery based on energy storage thermo-electric generation |
| JP6528924B1 (en) * | 2018-05-31 | 2019-06-12 | 三菱電機株式会社 | Photovoltaic paddle, method of manufacturing the same, and space structure |
| WO2019230019A1 (en) * | 2018-05-31 | 2019-12-05 | 三菱電機株式会社 | Solar power generation paddle, method for producing same, and space structure |
-
2012
- 2012-12-26 CN CN 201220730445 patent/CN203071070U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552156A (en) * | 2015-12-11 | 2016-05-04 | 河北大学 | Heat collection type light and heat-cascaded power source device and preparation method thereof |
| CN106208814A (en) * | 2016-09-18 | 2016-12-07 | 电子科技大学 | A kind of method utilizing satellite external surface thermograde to carry out generating electricity |
| CN106784106A (en) * | 2016-12-23 | 2017-05-31 | 杭州大和热磁电子有限公司 | A kind of semiconductor module of dual generating |
| JP6528924B1 (en) * | 2018-05-31 | 2019-06-12 | 三菱電機株式会社 | Photovoltaic paddle, method of manufacturing the same, and space structure |
| WO2019230019A1 (en) * | 2018-05-31 | 2019-12-05 | 三菱電機株式会社 | Solar power generation paddle, method for producing same, and space structure |
| CN109104138A (en) * | 2018-06-22 | 2018-12-28 | 东华大学 | A kind of flexible film-like photo-thermal power conversion device |
| CN109524496A (en) * | 2018-11-22 | 2019-03-26 | 北京临近空间飞行器系统工程研究所 | A kind of full-time solar battery based on energy storage thermo-electric generation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20161226 |