CN204425269U - A kind of heat radiation glass film plates of high power condense photovoltaic electrification module receiver - Google Patents
A kind of heat radiation glass film plates of high power condense photovoltaic electrification module receiver Download PDFInfo
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- CN204425269U CN204425269U CN201520154492.XU CN201520154492U CN204425269U CN 204425269 U CN204425269 U CN 204425269U CN 201520154492 U CN201520154492 U CN 201520154492U CN 204425269 U CN204425269 U CN 204425269U
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- heat radiation
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- radiation glass
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- 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
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Abstract
The heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present utility model, belongs to high concentration solar technical field of photovoltaic power generation.Heat radiation glass film plates of the present utility model, the surface contacted with air is formed by by necessarily regularly arranged polyhedron shape array, and this geometry comprises by the trihedral of the regularly arranged pyramidal tetrahedron of two-dimensional arrangements, pyramid with by the regularly arranged zigzag dihedron etc. of one dimensional arrangement.The utility model improves the area of dissipation of glass surface, thus effectively improves the heat dispersion of module receiver glass film plates, reduces the working temperature of chip, further increases generating efficiency and the cost performance of power generation module group.
Description
Technical field
The utility model relates to high concentration solar technical field of photovoltaic power generation, more particularly, relates to a kind of heat radiation glass film plates of high power condense photovoltaic electrification module receiver.
Background technology
Solar use is a kind of important new forms of energy.It has been generally acknowledged that high power condense photovoltaic electrification technology is by solar battery chip technology, the three large key technologies such as high power concentrator technology and solar tracking technology are formed.But an important technology---the heat radiation of battery chip is ignored by people usually in addition.Module miniaturization is one of designer trends of current high power condense photovoltaic electrification module.The aperture of this module group unit lens and focal length all less (within 100mm), under the certain geometric concentrating ratio of maintenance (as 350x-1000x), also less (2-3mm), the corresponding thermal power that chip produces also reduces corresponding battery chip size thereupon.When single-element lens is of a size of 60x60mm, each battery chip to the contribution of generated output (STC) about 1.2 watts time, as fruit chip efficiency be 45% (highest level of current volume production) time, the so corresponding thermal power produced is about 1.45 watts.This thermal power can make the working temperature rising 40-50 degree of chip reach 65-75 degree, or power reduction 6-8%.Therefore the heat dispersion of module receiver is improved thus the working temperature reducing chip followingly improves one of important technology approach of module power further.
This thin module that have employed based on aperture and all less lens of focal length is no longer suitable for conventional fan-shaped aluminium radiator, at this moment thin module casing particularly module base plate become the main heat sink carrier of receiver heat energy.German Soitec in recent years, Japanese Sumitomo, the companies such as Suncore and the Red Solar of China successively research employing float glass is the radiating bottom plate of module receiver.Glass film plates except bearing function, the radiation of base plate glass surface can also be utilized and with the convection current of surrounding air to realize heat from the transmission of chip-aluminum heat conducting plate-glass film plates-air and heat radiation, as shown in Figure 1.But what module adopted is all plate glass, and the heat loss through radiation of glass film plates is relevant with area with the shape of glass surface before, the heat dispersion of the glass film plates of this novel module receiver needs to improve further.
Utility model content
1. the utility model technical problem that will solve
The proposition of the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present utility model is the heat radiation glass film plates of the heat dispersion in order to propose a kind of further raising high power condense photovoltaic electrification module receiver glass film plates.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present utility model, the surface that heat radiation glass film plates contacts with air is formed by by necessarily regularly arranged polyhedron shape array.
As further improvement of the utility model: described polyhedron shape comprises tetrahedron.
As further improvement of the utility model: described polyhedron shape comprises trihedral.
As further improvement of the utility model: described polyhedron shape comprises dihedron.
As further improvement of the utility model: described tetrahedron comprises pyramidal tetrahedron.
As further improvement of the utility model: described trihedral comprises the trihedral of pyramid.
As further improvement of the utility model: described dihedron comprises zigzag dihedron
As further improvement of the utility model: it is regularly arranged that the polyhedron shape array on described heat radiation glass film plates surface presses one dimensional arrangement.
As further improvement of the utility model: the polyhedron shape array on described heat radiation glass film plates surface is regularly arranged by two-dimensional arrangements.
The main heat sink of consideration high power condense photovoltaic electrification module receiver thermal source is realized to the cross-ventilation outside module and radiation by the heat radiation glass film plates of module.The heat transfer process of receiver thermal source is as follows: first pass to glass film plates upper surface from receiver thermal source by heat-dissipating aluminium plate, heat is at the interface of glass film plates internal delivery to glass film plates and air afterwards, and at glass heat-delivery surface, the area scattering namely contacted with air mainly contains that convection current and thermal radiation occur:
Convection current formula is Q
1=HS Δ T (1)
Thermal radiation formula is Q
2=ε S Δ TF (2)
H is coefficient of heat convection value, and S then represents effective contact area of thermal convection; Δ T represents the temperature difference between glass surface and regional fluid, and ε is heat emissivity coefficient.
From above two formula, no matter be by heat loss through convection or heat loss through radiation, heat dispersion is all relevant with efficiently radiates heat area.
3. beneficial effect
The technical scheme adopting the utility model to provide, compared with prior art, has following remarkable result:
(1) the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present utility model, the face towards air of glass film plates is made up of the polyhedron array of small solid geometry shape, improve the area of dissipation of glass surface, thus effectively improve the heat dispersion of module receiver glass film plates, reduce the working temperature of chip, further increase generating efficiency and the cost performance of power generation module group.
(2) the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present utility model, while efficiently radiates heat area can improve greatly, cost needs to increase hardly.
(3) the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present utility model, rational in infrastructure, principle is understandable, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the flat plate radiation glass film plates schematic diagram of module receiver in background technology;
Fig. 2 is the heat radiation glass film plates surface texture schematic diagram in embodiment 1;
Fig. 3 is the heat radiation glass film plates surface texture schematic diagram in embodiment 2;
Fig. 4 is the heat radiation glass film plates surface texture schematic diagram in embodiment 3.
Embodiment
For understanding content of the present utility model further, by reference to the accompanying drawings and embodiment the utility model is described in detail.
Embodiment 1
The heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present embodiment, the surface that heat radiation glass film plates contacts with air is formed by by by necessarily regularly arranged polyhedron shape array.This polyhedron is pyramidal tetrahedron, and in two-dimensional arrangements, rule forms the contact-making surface (as described in Figure 2) of heat radiation glass film plates and air.
If bottom surface is the length of side is the square of 2a, pyramid height is b,
Then pyramidal tetrahedron efficiently radiates heat area is:
The multiple that it increases than tetrahedral floor space is:
As b=a,
as b=2a,
The glass back plate design specification of the present embodiment is 60x60x3.2mm, and zigzag design is of a size of a=b=1mm, and natural convection air coefficient is 5-25 (W/m
2* K), be chosen at 15 (W/m in the present embodiment
2* K) condition under detect; Chip heat is 1.467w; Ambient temperature 25 DEG C; Glass emissivity 0.92;
The pyramidal tetrahedron glass back plate base area of the present embodiment is 8049.6mm
2, it is 1.41 that area increases multiple, experimental result chip maximum temperature 57.99 DEG C, generating efficiency 28.68%.
Embodiment 2
The heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present embodiment, the surface that heat radiation glass film plates contacts with air is formed by by by necessarily regularly arranged polyhedron shape array.This polyhedron is the trihedral of pyramid, and in two-dimensional arrangements, rule forms the contact-making surface (as described in Figure 3) of heat radiation glass film plates and air.
If bottom surface is the length of side is the equilateral triangle of 2a, triangular pyramid height is b,
Then the trihedral efficiently radiates heat area of triangular pyramid is:
The multiple that it increases than the floor space of triangular pyramid is:
As b=a, M=2; As b=2a,
The glass back plate design specification of the present embodiment is 60x60x3.2mm, and zigzag design is of a size of a=b=1mm, and natural convection air coefficient is 15 (W/m
2* K); Chip heat is 1.467w; Ambient temperature 25 DEG C; Glass emissivity 0.92;
The trihedral glass back plate base area of the pyramid of the present embodiment is 7200mm
2, it is 2 that area increases multiple, experimental result chip maximum temperature 53.1 DEG C, generating efficiency 29.117%.
Embodiment 3
The heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present embodiment, the surface that heat radiation glass film plates contacts with air is formed by by by necessarily regularly arranged polyhedron shape array.This polyhedron is zigzag dihedron, and in one dimensional arrangement, rule forms the contact-making surface (as described in Figure 4) of heat radiation glass film plates and air.
If the length of side of bottom surface is 2a, sawtooth height is b,
Then the efficiently radiates heat area of zigzag dihedron is:
The multiple of its floor space increase more zigzag than one dimension is:
As b=a,
as b=2a,
The glass back plate design specification of the present embodiment is 60x60x3.2mm, and zigzag design is of a size of 2a=b=1.2mm, and natural convection air coefficient is 15 (W/m
2* K); Chip heat is 1.467w; Ambient temperature 25 DEG C; Glass emissivity 0.92;
The zigzag dihedron glass back plate base area of the present embodiment is 8049.85mm
2, it is 2.236 that area increases multiple, experimental result chip maximum temperature 51.5 DEG C, the generating efficiency 29.33% of calculating.
Embodiment 4
The heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver of the present embodiment, the surface that heat radiation glass film plates contacts with air is plane.
The glass back plate design specification of the present embodiment is 60x60x3.2mm, and natural convection air coefficient is 15 (W/m
2* K); Chip heat is 1.467w; Ambient temperature 25 DEG C; Glass emissivity 0.92;
The flat glass backboard base area of the present embodiment is 3600mm
2, it is 1 that area increases multiple; Experimental result chip maximum temperature 64.8 DEG C, the generating efficiency 28% of actual measurement.
The glass film plates design size of embodiment 1 to embodiment 4, area of dissipation, area increase multiple and chip maximum temperature list:
Schematic above the utility model and execution mode thereof to be described, this description is not restricted, shown in accompanying drawing is also one of execution mode of the present utility model, actual structure is not limited thereto, the polyhedron of heat radiation glass surface is not limited to the structure in 3 embodiments, heat radiation glass film plates surface can also be Rhizoma Sparganii frustum, and the geometries such as tetragonous cone table are just formed with necessarily regularly arranged row.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the frame mode similar to this technical scheme and embodiment without creationary, protection range of the present utility model all should be belonged to.
Claims (9)
1. a heat radiation glass film plates for high power condense photovoltaic electrification module receiver, is characterized in that: the surface that heat radiation glass film plates contacts with air is formed by by necessarily regularly arranged polyhedron shape array.
2. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 1, is characterized in that: described polyhedron shape comprises tetrahedron.
3. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 1, is characterized in that: described polyhedron shape comprises trihedral.
4. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 1, is characterized in that: described polyhedron shape comprises dihedron.
5. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 2, is characterized in that: described tetrahedron comprises pyramidal tetrahedron.
6. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 3, is characterized in that: described trihedral comprises the trihedral of pyramid.
7. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 4, is characterized in that: described dihedron comprises zigzag dihedron.
8. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 1 to 6 any one, is characterized in that: the polyhedron shape array on described heat radiation glass film plates surface is regularly arranged by two-dimensional arrangements.
9. the heat radiation glass film plates of a kind of high power condense photovoltaic electrification module receiver according to claim 7, is characterized in that: the polyhedron shape array on described heat radiation glass film plates surface is regularly arranged by one dimensional arrangement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520154492.XU CN204425269U (en) | 2015-03-18 | 2015-03-18 | A kind of heat radiation glass film plates of high power condense photovoltaic electrification module receiver |
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| CN201520154492.XU CN204425269U (en) | 2015-03-18 | 2015-03-18 | A kind of heat radiation glass film plates of high power condense photovoltaic electrification module receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716214A (en) * | 2015-03-18 | 2015-06-17 | 日芯光伏科技有限公司 | Radiating glass base plate of high concentration photovoltaic power generation module receiver and preparation method thereof |
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2015
- 2015-03-18 CN CN201520154492.XU patent/CN204425269U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716214A (en) * | 2015-03-18 | 2015-06-17 | 日芯光伏科技有限公司 | Radiating glass base plate of high concentration photovoltaic power generation module receiver and preparation method thereof |
| CN104716214B (en) * | 2015-03-18 | 2017-03-01 | 日芯光伏科技有限公司 | A kind of radiating glass film plates of high power concentrating photovoltaic power generation module group receptor and preparation method thereof |
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| 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: 20150624 Termination date: 20190318 |