WO2012076930A1 - A solar cell holding device - Google Patents

A solar cell holding device Download PDF

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Publication number
WO2012076930A1
WO2012076930A1 PCT/IB2010/055673 IB2010055673W WO2012076930A1 WO 2012076930 A1 WO2012076930 A1 WO 2012076930A1 IB 2010055673 W IB2010055673 W IB 2010055673W WO 2012076930 A1 WO2012076930 A1 WO 2012076930A1
Authority
WO
WIPO (PCT)
Prior art keywords
solar cell
holding device
cell holding
mounting plate
heat sink
Prior art date
Application number
PCT/IB2010/055673
Other languages
French (fr)
Inventor
Mehmet Bahattin Daloglu
Original Assignee
Sunlego Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunlego Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi filed Critical Sunlego Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi
Priority to PCT/IB2010/055673 priority Critical patent/WO2012076930A1/en
Publication of WO2012076930A1 publication Critical patent/WO2012076930A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H01L31/0521—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • This invention relates to a solar cell holding device, which is used in solar energy conversion systems.
  • Photovoltaic cells contain solar photovoltaic materials that convert solar energy into direct current electricity.
  • converting systems use lenses or mirrors and tracking systems to focus a large area of sunlight onto a small cell area. Those systems are called concentrated photovoltaic (CPV) systems.
  • CPV concentrated photovoltaic
  • Photovoltaic cells used in CPV systems generate large amount of heat while producing electricity. Dissipating generated heat from photovoltaic cells is one of the most important challenges in CPV systems, because of decreasing conversion efficiency with increasing temperature.
  • complicated tracking systems which increase cost, volume and weight of the CPV system, should be used. Without complicated or precise tracking systems, unignorable amount of sunlight misses PV cells surface, though electricity output from total sunlight incoming decreases.
  • an apparatus converting solar energy to electricity and thermal energy is disclosed.
  • the object of the invention is to provide a solar cell holding device that absorbs generated heat from solar cell.
  • Further object of the invention is to provide a solar cell holding device that absorbs heat from sunlight not approaching to solar cell.
  • Further object of the invention is to provide a solar cell holding device that heats a coolant fluid with the absorbed heat from sunlight and solar cell.
  • a solar cell holding device designed to fulfill the objects of the present invention is illustrated in the attached figures, where:
  • Fig. 1 - is the perspective view of the first embodiment of solar cell holding device
  • Fig. 2 - is the sectional perspective view of the first embodiment of solar cell holding device
  • Fig. 3 - is the sectional side view of the first embodiment of solar cell holding device
  • Fig. 4 - is the perspective view of the first embodiment of upper body
  • Fig. 5 - is the perspective view of the first embodiment of lower body
  • Fig. 6 - is the perspective view of the first embodiment of mounting plate
  • Fig. 7 - is the perspective view of the first embodiment of heat-sink
  • Fig. 8 - is the perspective view of the second embodiment of solar cell holding device
  • Fig. 9 - is the sectional perspective view of the second embodiment of solar cell holding device
  • Fig. 10 - is the sectional perspective view of the second embodiment of lower body
  • Fig. 1 1 - is the perspective view of the second embodiment of mounting plate Fig. 12 - is the perspective view of the second embodiment of upper body
  • the solar cell holding device (1) comprises;
  • Mounting plate (2) comprises at least one slot (21) to let coolant flow between upper and lower bodies (3, 4), at least one mounting hole (22) to fix upper and lower bodies (3, 4) to mounting plate (2) and at least one mounting surface (23) where solar cell (S) is fixed.
  • Mounting plate (2) is preferably made from a metal with good heat conducting characteristics, for example aluminum. In the first and preferred embodiment of the invention, mounting plate (2) is rectangular shaped (fig. 6), however it may be elliptical or round shaped in different embodiments. In the preferred embodiment of the present invention mounting plate (2) comprise many slots (21) in the two parallel sides of mounting surface (23) and four mounting holes (22) at the corners of the mounting surface (23).
  • Upper body (3) comprises at least one mounting hole (31) to fix upper body (3) to mounting plate (2), at least one upper channel (33) to allow coolant flow inside, at least one outlet (35) wherein coolant leaves solar cell holding device (1), at least one heating surface (36) parallel to the solar cell (S), and an opening (37) in the heating surface (36) letting sunlight passing through to solar cell (S). Coolant flow inside the upper channel (33) is fed through flow from the slot (21).
  • Upper body (3) in the first and preferred embodiment of the invention comprises at least one fin (34) to increase heat transfer surface area and flow length inside upper channel (33). This makes the upper channel (33) has a spiral form with many fins (34) inside to increase flow length inside upper body (3) which also increases the surface area where heat transfer from upper body (3) to coolant occurs.
  • Upper body (3) is preferably made from a metal with good heat conducting characteristics, for example aluminum.
  • upper channel (33) is "U" shaped and lies on top of the slots (21); outlet (35) is placed on the side wall of upper channel (33) where arms of the U shape connects.
  • Fins (34) are connected to the bottom side of the heating surface (36).
  • Sunlight coming to solar cell holding device (1) either reaches to heating surface (36) or passes through the opening (37) and reaches to solar cell (S).
  • Heating surface (36) heats up from the sunlight reaching to itself and transfers this heat to fins (34).
  • Heating surface (36) is preferably coated with heat absorbing material to increase heat absorbing efficiency.
  • upper body (3) also comprises at least one protrusion (32) to fix upper body (3) to lower body (4).
  • Lower body (4) comprises at least one mounting hole (41) to fix lower body (4) to mounting plate (2), at least one lower channel (43) to allow coolant flow inside, at least one inlet (45) wherein coolant enters solar cell holding device (1) and at least one pressing surface (46) applying pressure to the heat sink (5).
  • lower channel (43) to increase heat transfer surface area and flow length inside lower channel (43).
  • Lower body (4) is preferably made from a metal with good heat conducting characteristics, for example aluminum.
  • lower channel (43) is "U" shaped and lies beneath the slots (21); inlet
  • lower body (4) also comprises at least one protrusion (42) to fix lower body (4) to upper body (3).
  • mounting holes (22, 31, 41) are concentrically aligned.
  • Upper body (3), mounting plate (2) and lower body (4) is fixed together with bolt or like fastening elements passing through mounting holes (22, 31, 41).
  • said fastening elements passing through mounting holes (22, 31, 41) could also be used to mount device (1) to said tracking system.
  • Protrusions (32, 42) are preferably ear shaped. Upper and lower bodies (3, 4) are mounted to each other via fastening elements passing through protrusions (32, 42).
  • heat sink (5) is made from a thin copper plate folded many times. Heat sink (5) comprises many surfaces parallel to each other. Coolant flows through the heat sink (5) between said surfaces. Heat sink (5) transfers the heat generated by solar cell (S) directly to the coolant via the coolant flow between said surfaces. Heat sink (5) is placed between bottom surface of mounting surface (23) and on top of the pressing surface (46). When upper and lower bodies (3, 4) assembled; heat sink (5) is squeezed between mounting surface (23) and pressing surface (46).
  • thermal paste may be used to increase heat transfer rate between mounting surface (23)-heat sink (5) and heat sink (5)-pressing surface (46).
  • coolant-delivering part (pipe, hose etc.) is fixed to inlet (45) and outlet (35) holes. Coolant first enters from inlet (45) passes between lower body (4) and middle plate (2), passes between surfaces of heat sink (5), reaches to lower channel (43), some coolant flows through slot (21) while main flow follows lower channel (43), coolant passed through slot (21) starts following upper channel (34) and coolant leaves upper body (3) from outlet (35). With this flow coolant takes heat generated by solar cell (S) and heat absorbed by heating surface (36), with convection from heat sink (5), fins (34, 44) and channel (33, 43) walls.
  • the solar cell holding device (1) comprises; at least one mounting plate (2) with a heat sink (5) transferring heat generated from solar cell (S), at least one upper body (3) fixed to the upper surface of mounting plate (2) with an opening (37) to let sunlight reach solar cell (S), at least one lower body (4) fixed to the lower surface of mounting plate (2).
  • solar cell holding device (1) is shaped cylindrically and fluid flow inside solar cell holding device (1) starts from the center of the lower body (4).
  • the heat sink (5) which is fixed to the mounting plate (2) underneath the mounting surface (23).
  • Heat sink (5) in the second embodiment is spiral shaped; coolant flow starts from the center of the spiral and after flowing through spiral leaves heat sink (5).
  • mounting plate (2), upper body (3) and lower body (4) are preferably made from aluminum or alloys of aluminum or similar good heat transferring materials.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)

Abstract

This invention relates to a solar cell holding device (1), which is used in solar energy conversion systems; comprising one mounting plate (2) where solar cell (S) is fixed, one upper body (3) fixed to the upper surface of mounting plate (2) with an opening (37) to let sunlight reach solar cell (S), one lower body (4) fixed to the lower surface of mounting plate (2), one heat sink (5) transferring heat generated from solar cell (S) to lower body (4) with conduction and to coolant passing through said surfaces with convection.

Description

A SOLAR CELL HOLDING DEVICE
Field of the invention
This invention relates to a solar cell holding device, which is used in solar energy conversion systems.
Prior art
Due to the growing demand for renewable energy sources, the use of solar energy has advanced exceedingly in recent years. Solar energy is converted into both electrical and thermal energy in independent systems with almost negligible operating costs.
Solar energy can be converted into electrical energy by using photovoltaic cells. Photovoltaic cells contain solar photovoltaic materials that convert solar energy into direct current electricity. To increase output of photovoltaic cells, converting systems use lenses or mirrors and tracking systems to focus a large area of sunlight onto a small cell area. Those systems are called concentrated photovoltaic (CPV) systems. Photovoltaic cells used in CPV systems generate large amount of heat while producing electricity. Dissipating generated heat from photovoltaic cells is one of the most important challenges in CPV systems, because of decreasing conversion efficiency with increasing temperature. To work with high efficiencies in CPV systems, complicated tracking systems, which increase cost, volume and weight of the CPV system, should be used. Without complicated or precise tracking systems, unignorable amount of sunlight misses PV cells surface, though electricity output from total sunlight incoming decreases. In the United States patent no US 4493940 an apparatus converting solar energy to electricity and thermal energy is disclosed.
Summary of the invention
The object of the invention is to provide a solar cell holding device that absorbs generated heat from solar cell.
Further object of the invention is to provide a solar cell holding device that absorbs heat from sunlight not approaching to solar cell.
Further object of the invention is to provide a solar cell holding device that heats a coolant fluid with the absorbed heat from sunlight and solar cell.
Brief description of the drawings
"A solar cell holding device" designed to fulfill the objects of the present invention is illustrated in the attached figures, where:
Fig. 1 - is the perspective view of the first embodiment of solar cell holding device
Fig. 2 - is the sectional perspective view of the first embodiment of solar cell holding device
Fig. 3 - is the sectional side view of the first embodiment of solar cell holding device
Fig. 4 - is the perspective view of the first embodiment of upper body
Fig. 5 - is the perspective view of the first embodiment of lower body
Fig. 6 - is the perspective view of the first embodiment of mounting plate
Fig. 7 - is the perspective view of the first embodiment of heat-sink
Fig. 8 - is the perspective view of the second embodiment of solar cell holding device Fig. 9 - is the sectional perspective view of the second embodiment of solar cell holding device
Fig. 10 - is the sectional perspective view of the second embodiment of lower body
Fig. 1 1 - is the perspective view of the second embodiment of mounting plate Fig. 12 - is the perspective view of the second embodiment of upper body
List of reference symbols
1. Solar cell holding device
2. Mounting plate
21. Slot
22. Mounting hole
23. Mounting surface
3. Upper body
31. Mounting hole
32. Protrusion
33. Upper channel
34. Fin
35. Outlet
36. Heating surface
37. Opening
4. Lower body
41. Mounting hole
42. Protrusion
43. Lower channel
44. Fin
45. Inlet
46. Pressing surface
5. Heat sink Detailed description of the invention
The solar cell holding device (1) comprises;
-at least one mounting plate (2) where solar cell (S) is fixed,
-at least one upper body (3) fixed to the upper surface of mounting plate (2) with an opening (37) to let sunlight reach solar cell (S),
-at least one lower body (4) fixed to the lower surface of mounting plate (2) and -at least one heat sink (5) transferring heat generated from solar cell (S) to lower body (4). Mounting plate (2) comprises at least one slot (21) to let coolant flow between upper and lower bodies (3, 4), at least one mounting hole (22) to fix upper and lower bodies (3, 4) to mounting plate (2) and at least one mounting surface (23) where solar cell (S) is fixed. Mounting plate (2) is preferably made from a metal with good heat conducting characteristics, for example aluminum. In the first and preferred embodiment of the invention, mounting plate (2) is rectangular shaped (fig. 6), however it may be elliptical or round shaped in different embodiments. In the preferred embodiment of the present invention mounting plate (2) comprise many slots (21) in the two parallel sides of mounting surface (23) and four mounting holes (22) at the corners of the mounting surface (23).
Upper body (3) comprises at least one mounting hole (31) to fix upper body (3) to mounting plate (2), at least one upper channel (33) to allow coolant flow inside, at least one outlet (35) wherein coolant leaves solar cell holding device (1), at least one heating surface (36) parallel to the solar cell (S), and an opening (37) in the heating surface (36) letting sunlight passing through to solar cell (S). Coolant flow inside the upper channel (33) is fed through flow from the slot (21). Upper body (3) in the first and preferred embodiment of the invention comprises at least one fin (34) to increase heat transfer surface area and flow length inside upper channel (33). This makes the upper channel (33) has a spiral form with many fins (34) inside to increase flow length inside upper body (3) which also increases the surface area where heat transfer from upper body (3) to coolant occurs. Upper body (3) is preferably made from a metal with good heat conducting characteristics, for example aluminum. In the preferred embodiment of the invention, upper channel (33) is "U" shaped and lies on top of the slots (21); outlet (35) is placed on the side wall of upper channel (33) where arms of the U shape connects. Fins (34) are connected to the bottom side of the heating surface (36). Sunlight coming to solar cell holding device (1) either reaches to heating surface (36) or passes through the opening (37) and reaches to solar cell (S). Heating surface (36) heats up from the sunlight reaching to itself and transfers this heat to fins (34). Heating surface (36) is preferably coated with heat absorbing material to increase heat absorbing efficiency.
Preferably, upper body (3) also comprises at least one protrusion (32) to fix upper body (3) to lower body (4).
Lower body (4) comprises at least one mounting hole (41) to fix lower body (4) to mounting plate (2), at least one lower channel (43) to allow coolant flow inside, at least one inlet (45) wherein coolant enters solar cell holding device (1) and at least one pressing surface (46) applying pressure to the heat sink (5). Lower body (4) in the first and preferred embodiment of the invention, comprises at least one fin
(44) to increase heat transfer surface area and flow length inside lower channel (43). This makes the lower channel (43) has a spiral form with many fins (44) inside to increase flow length inside lower body (4) which also increases the surface area where heat transfer from lower body (4) to coolant takes presence. Lower body (4) is preferably made from a metal with good heat conducting characteristics, for example aluminum. In the preferred embodiment of the invention, lower channel (43) is "U" shaped and lies beneath the slots (21); inlet
(45) is placed between the arms of U shape. Pressing surface (46) is parallel to the mounting surface (23). Preferably, lower body (4) also comprises at least one protrusion (42) to fix lower body (4) to upper body (3).
When solar cell holding device (1) is assembled, these mounting holes (22, 31, 41) are concentrically aligned. Upper body (3), mounting plate (2) and lower body (4) is fixed together with bolt or like fastening elements passing through mounting holes (22, 31, 41). In addition to that, when solar cell holding device (1) is fixed to a tracking system, said fastening elements passing through mounting holes (22, 31, 41) could also be used to mount device (1) to said tracking system.
Protrusions (32, 42) are preferably ear shaped. Upper and lower bodies (3, 4) are mounted to each other via fastening elements passing through protrusions (32, 42). In the preferred embodiment of the invention, heat sink (5) is made from a thin copper plate folded many times. Heat sink (5) comprises many surfaces parallel to each other. Coolant flows through the heat sink (5) between said surfaces. Heat sink (5) transfers the heat generated by solar cell (S) directly to the coolant via the coolant flow between said surfaces. Heat sink (5) is placed between bottom surface of mounting surface (23) and on top of the pressing surface (46). When upper and lower bodies (3, 4) assembled; heat sink (5) is squeezed between mounting surface (23) and pressing surface (46). In another embodiment of the invention, thermal paste may be used to increase heat transfer rate between mounting surface (23)-heat sink (5) and heat sink (5)-pressing surface (46).
After solar cell mounting device (1) is assembled, coolant-delivering part (pipe, hose etc.) is fixed to inlet (45) and outlet (35) holes. Coolant first enters from inlet (45) passes between lower body (4) and middle plate (2), passes between surfaces of heat sink (5), reaches to lower channel (43), some coolant flows through slot (21) while main flow follows lower channel (43), coolant passed through slot (21) starts following upper channel (34) and coolant leaves upper body (3) from outlet (35). With this flow coolant takes heat generated by solar cell (S) and heat absorbed by heating surface (36), with convection from heat sink (5), fins (34, 44) and channel (33, 43) walls.
In the second embodiment of the invention, the solar cell holding device (1) comprises; at least one mounting plate (2) with a heat sink (5) transferring heat generated from solar cell (S), at least one upper body (3) fixed to the upper surface of mounting plate (2) with an opening (37) to let sunlight reach solar cell (S), at least one lower body (4) fixed to the lower surface of mounting plate (2). In this embodiment, solar cell holding device (1) is shaped cylindrically and fluid flow inside solar cell holding device (1) starts from the center of the lower body (4). Major difference of this embodiment is the heat sink (5), which is fixed to the mounting plate (2) underneath the mounting surface (23). Heat sink (5) in the second embodiment is spiral shaped; coolant flow starts from the center of the spiral and after flowing through spiral leaves heat sink (5). Flow continues through the lower channel (43), passes through the slot (21) and enters to the upper channel (33). Coolant flow inside the upper channel (33) takes heat from heating surface, while cooling the upper surface of the mounting plate (2). After upper channel (33) coolant flows out of the solar cell holding device (1) from the outlet (35). In this embodiment, mounting plate (2), upper body (3) and lower body (4) are preferably made from aluminum or alloys of aluminum or similar good heat transferring materials. Within the scope of this basic concept, it is possible to develop various embodiments of the inventive a solar cell holding device (1). The invention cannot be limited to the examples described herein; it is essentially according to the claims.

Claims

1. A solar cell holding device (1) comprising;
at least one mounting plate (2) where solar cell (S) is fixed,
at least one upper body (3) fixed to the upper surface of mounting plate (2) with an opening (37) to let sunlight reach solar cell (S),
at least one lower body (4) fixed to the lower surface of mounting plate (2); characterized by at least one heat sink (5) with many surfaces parallel or concentric to each other, transferring heat generated from solar cell (S) to lower body (4) with conduction and to coolant passing through said surfaces with convection.
2. The solar cell holding device (1) according to Claim 1 is characterized by the mounting plate (2) comprising at least one slot (21) to let coolant flow between the upper and lower bodies (3, 4), at least one mounting hole (22) to fix the upper and lower bodies (3, 4) to the mounting plate (2) and at least one mounting surface (23) where solar cell (S) is fixed.
3. The solar cell holding device (1) according to any one of the claims 1 or 2 is characterized by the mounting plate (2) is made from aluminum or similar good heat transferring materials.
4. The solar cell holding device (1) according to any one of the preceding claims, is characterized by the upper body (3), comprising at least one mounting hole (31) to fix the upper body (3) to the mounting plate (2), at least one upper channel (33) to allow coolant flow inside, at least one outlet (35) wherein coolant leaves the solar cell holding device (1), at least one heating surface (36) parallel to the solar cell (S) and an opening (37) in the heating surface (36) letting sunlight passing through to solar cell (S).
5. The solar cell holding device (1) according to claim 4 is characterized by the upper body (3) comprising at least one fin (34) to increase heat transfer surface area and flow length inside upper channel (33).
6. The solar cell holding device (1) according to according to claim 5, characterized by the upper channel (33) spiral formed with many fins (34) inside.
7. The solar cell holding device (1) according to any one of the claims 4 to 6, characterized by the upper body (3), is made from aluminum or similar good heat transferring materials.
8. The solar cell holding device (1) according to any one of the claims 4 to 7, characterized by the heating surface (36), heats up from the sunlight reaching to itself and transfers this heat to fins (34).
9. The solar cell holding device (1) according to any one of the claims 4 to 8, characterized by the heating surface (36), is coated with heat absorbing material to increase heat absorbing efficiency.
10. The solar cell holding device (1) according to any one of the preceding claims characterized by the lower body (4), comprising at least one mounting hole (41) to fix lower body (4) to mounting plate (2), at least one lower channel (43) to allow coolant flow inside, at least one fin (44) to increase heat transfer surface area and flow length inside lower channel (43), at least one inlet (45) wherein coolant enters solar cell holding device (1) and at least one pressing surface (46) applying pressure to the heat sink (5).
11. The solar cell holding device (1) according to according to claim 10 is characterized by the lower body (4) comprising at least one fin (44) to increase heat transfer surface area and flow length inside lower channel (43).
12. The solar cell holding device (1) according to according to claim 11, characterized by the upper channel (43) spiral formed with many fins (44) inside.
13. The solar cell holding device (1) according to any one of the claims 10 to 12, characterized by the lower channel (43) which is spiral formed with many fins (44) inside.
14. The solar cell holding device (1) according to any one of the claims 10 to 13, characterized by the lower body (4), made from aluminum or similar good heat transferring materials.
15. The solar cell mounting device (1) according to any one of the claims 9 to 14, wherein coolant flow takes place starting from inlet (45), passing between lower body (4) and middle plate (2), passing between surfaces of heat sink (5), entering to lower channel (44), flowing through slots (21) from lower channel (44) to upper channel (34) and leaving from outlet (35); wherein coolant takes heat generated by solar cell (S) and heat absorbed by heating surface (36), with convection from heat sink (5), fins (34, 44) and channel (33, 43) walls.
16. The solar cell holding device (1) according to any one of the preceding claims, is characterized by the upper body (3) and lower body (4) comprising at least one protrusion (32, 42) to fix the upper body (3) to the lower body (4) via fastening elements passing through protrusions (32, 42).
17. The solar cell holding device (1) according to any one of the preceding claims, characterized by the spiral shaped heat sink (5) which is fixed to the mounting plate (2) underneath the mounting surface (23).
18. The solar cell holding device (1) according to any one of the claims 1 to 16 characterized by the heat sink (5) made from a thin copper plate folded many times.
19. The solar cell holding device (1) according to claim 18, characterized by the heat sink (5), placed between bottom surface of mounting surface (23) and on top of the pressing surface (46); squeezed between mounting surface (23) and pressing surface (46).
20. The solar cell holding device (1) according to any one of the claims 18 or 19, characterized by the heat sink (5), where thermal paste is used to increase heat transfer rate between mounting surface (23)-heat sink (5) and heat sink (5)- pressing surface (46).
PCT/IB2010/055673 2010-12-08 2010-12-08 A solar cell holding device WO2012076930A1 (en)

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US4493940A (en) 1982-08-13 1985-01-15 Sanyo Electric Co., Ltd. Sunlight-into-energy conversion apparatus
US20070089775A1 (en) * 2003-08-29 2007-04-26 Lasich John B Extracting heat from an object
DE102008035735A1 (en) * 2008-07-31 2010-02-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Open encapsulated concentrator system for solar radiation
EP2254156A2 (en) * 2008-03-06 2010-11-24 Dae Ho Seo Photovoltaic assembly

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