CN105490636B - For the reflector of two-sided photovoltaic module and the photovoltaic system of application reflector - Google Patents
For the reflector of two-sided photovoltaic module and the photovoltaic system of application reflector Download PDFInfo
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- CN105490636B CN105490636B CN201610044971.5A CN201610044971A CN105490636B CN 105490636 B CN105490636 B CN 105490636B CN 201610044971 A CN201610044971 A CN 201610044971A CN 105490636 B CN105490636 B CN 105490636B
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- 229910052782 aluminium Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
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- 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
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
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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
- Y02E10/52—PV systems with concentrators
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- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of reflector for two-sided photovoltaic module and the photovoltaic systems of application reflector, the reflector reflects sunray to the lower surface of the two-sided photovoltaic module, and the part of the reflector towards the two-sided photovoltaic module lower surface is reflecting surface.Using the photovoltaic system of reflector, which includes one or more reflectors；The photovoltaic system has the two-sided photovoltaic module of quantity identical as the reflector of application, each reflector is set to below the two-sided photovoltaic module, and the reflecting surface of the reflector receives sunray, and reflex on the lower surface of the two-sided photovoltaic module.The present invention can reduce the usable floor area of two-sided photovoltaic module, can improve the utilization rate of two-sided photovoltaic module, reduce production cost.
Description
Technical field
The present invention relates to solar-energy photo-voltaic cell production capacity field, espespecially a kind of reflector for two-sided photovoltaic module and answer
With the photovoltaic system of reflector.
Background technology
With the development of society and science and technology, the production technology of solar panel is continuously available raising, and increasingly
Widely it is applied to every field.Solar-energy photo-voltaic cell (abbreviation photovoltaic cell) passes through photoelectric effect or photochemical effect
Directly luminous energy is converted to the device of electric energy.It is the sun electricity that direct current electricity output can be provided separately with encapsulation and inner Join
Pond combines the unit, and solar panel is valence in core and solar power system in solar power system
It is worth highest part.It can not only realize that solar energy is converted into electric energy, or be sent in accumulator and store, or push load work
Make.
And electric energy caused by battery depends on the photon energy being incident on battery, is at present solution photovoltaic generation
The relatively low problem of product generating efficiency mainly replaces common single side photovoltaic cell with two-sided photovoltaic module, utilizes dual light
The tow sides for lying prostrate component receive the solar photon of injection simultaneously, and then improve electric energy production.
But the production cost of two-sided photovoltaic module is higher, and the utilization rate of reverse side is relatively low, thus to using enterprise cause compared with
Big economic pressures.How so that the tow sides of two-sided photovoltaic module can be utilized effectively, in the two-sided photovoltaic group of reduction
On the basis of the usable floor area of part, ensure electric energy production, being effectively reduced production cost, to be always those skilled in the art need to solve
Certainly the problem of.
Invention content
The object of the present invention is to provide a kind of reflectors for two-sided photovoltaic module, can reduce two-sided photovoltaic module
Usable floor area on the basis of, can improve the utilization rate of two-sided photovoltaic module, reduce production cost.
Technical solution provided by the invention is as follows：
A kind of reflector for two-sided photovoltaic module, including：
The reflector reflects sunray to the lower surface of the two-sided photovoltaic module, and the reflector is described in
The part of two-sided photovoltaic module lower surface is reflecting surface.
In the technical program, by reflector towards the reflecting surface of two-sided photovoltaic module bottom surface section, the reflecting surface energy
It is enough that the sunlight of all directions is concentrated on to the direction for needing to reflect, the usable floor area of two-sided photovoltaic module can be reduced, it can
The utilization rate of two-sided photovoltaic module is improved, production cost is reduced.
Preferably, the reflector includes a bottom plate and is disposed around the side wall of the bottom plate surrounding, and the side wall is close to institute
The bore for stating bottom plate side is less than other side bore；
The bottom plate and the side wall inner wall are the reflecting surface.
In the present solution, reflector overall structure flue (bore of the side wall close to bottom plate side is less than other side bore)
Other than the intensity of illumination and the uniformity that can improve reflected light, additionally it is possible to spread reflection range, by bell mouth angle
Adjustment, you can realize the adjustment of reflected range.
Preferably, the side wall is connected and composed by multiple side plates, and the side plate is tablet or cambered surface plate, and the side plate
Its edge lengths close to the bottom plate side is less than opposite side；
It is connected by arcwall face between each two adjacent side plates, the arcwall face is fan shape.
The arcwall face that reflector is arranged to be connected and composed by multiple side plates, and constituted between side wall can make anti-
The inner wall of emitter is at polygon, while each face is arc-shaped transition, avoids generating the sunlight reduction that reception is caused at dead angle, into
And weaken the photon energy that two-sided photovoltaic module receives.
Another object of the present invention is the photovoltaic system using the reflector for two-sided photovoltaic module described above,
Including：
One or more reflectors；
The two-sided photovoltaic module of quantity identical as the reflector of application, each reflector are set to described two-sided
Immediately below photovoltaic module, and the reflecting surface of the reflector receives sunray, and reflexes under the two-sided photovoltaic module
On surface.
In the present solution, reflector, and the two-sided photovoltaic module using multiple reflectors so that technical scheme of the present invention
Can be suitable for the double side photovoltaic battery system of various electric energy productions can use less when required electric energy production is smaller
Two-sided photovoltaic module i.e. can reach required production capacity, can required electric energy production under the same conditions, efficiently reduce two-sided
The usable floor area of photovoltaic module, thereby reduces production cost.In addition, tubaeform reflector is in addition to that can improve reflected light
Outside intensity and the uniformity, additionally it is possible to the light reflected to two-sided photovoltaic module lower surface be formed an angle of reflection, cover following table
Face can not be irradiated to the part of sunlight.When practice, as long as adjusting the angle bell mouth angle, you can realize reflection angle
Adjustment so that two-sided photovoltaic module lower surface can receive light irradiation, and then increase operation rate.
Preferably, the two-sided photovoltaic module transverse section is rounded or square structure, and with the bottom plate surrounding profile one
It causes so that the side wall is looped around the two-sided photovoltaic module surrounding.
The bottom plate surrounding profile of the reflector is consistent with two-sided photovoltaic module transverse section, and it is two-sided can so that side wall is distributed in
The surrounding of photovoltaic module, and the geometric center of each side plate ensures the sun from injection on two-sided photovoltaic module lower surface
Light all reflexes to two-sided photovoltaic module lower surface, and the sunlight of reflection can be made equably to inject from different directions.
Preferably, the height of the reflector is the first height h1；
The two-sided photovoltaic module edge is to sidewall edge the distance between of the reflector far from the bottom plate side
For the first length S1；The geometric center of the two-sided photovoltaic module to the distance between edge is the second length S2；
The first height h1<S1<S2.
First height setting is less than the first length, while the first length is less than and the second length, it is ensured that two-sided
Photovoltaic module lower surface can receive the injection of sunlight, avoid the part degree of being previously used for generating two-sided photovoltaic module,
And another part cannot be fully used, and reduce the utilization rate of double side photovoltaic battery component.
Preferably, the distance between the two-sided photovoltaic module lower surface and the bottom plate are the second height h2, and h2=
h1。
First height and the second highly consistent utilization rate that can improve reflector meet and are received on reflecting surface
Sunray all reflexes to the lower surface of two-sided photovoltaic module after reflection.
It is further on the basis of the above that the first protective layer is preferably equipped with above the two-sided photovoltaic module, it is described anti-
The second protective layer is equipped with below the bottom plate of emitter, it is accommodating described that first protective layer and second protective layer connect and compose one
The accommodating space of two-sided photovoltaic module, the reflector.
The protective layer of setting can protect two-sided photovoltaic module and reflector, it is ensured that not influence sunlight
While injection, extend the service life of entire photovoltaic system.
Preferably, first protective layer and the upper and lower surface of the second protective layer are plane.
The upper and lower surface of two protective layers is set as plane, can be made to avoid the injection angle of sunlight is influenced
Total is compact, beautiful, and is easily installed and puts.
Preferably, first protective layer and second protective layer are ultrawhite tempered glass or plastics.
Mainly ultrawhite tempered glass or plastics have preferable translucency and abrasion performance, and will not by rainwater corrosion,
Impact resistance is good.
The reflector for two-sided photovoltaic module and the photovoltaic system using reflector provided through the invention, at least can
Enough bring a kind of following advantageous effect：
1, for the reflector in the present invention towards the reflecting surface of two-sided photovoltaic module bottom surface section, which can will be each
The sunlight in a direction concentrates on the direction for needing to reflect, and can reduce the usable floor area of two-sided photovoltaic module, effectively improves double
The utilization rate of face photovoltaic module reduces production cost.
2, the present invention in reflector it is with the shape of a horn, required electric energy production under the same conditions, efficiently reduce two-sided
The usable floor area of photovoltaic module, thereby reduces production cost.
3, side wall is connected by side plate with the arcwall face of fan shape in the present invention, enables to entire side wall camber transition,
The injection intensity for receiving sunlight is improved, and then improves the photon energy that two-sided photovoltaic module receives.
4, the present invention applies the photovoltaic system of the reflector, is directly reflected by being installed in the lower section of two-sided photovoltaic module
Device not only solves the problems, such as that two-sided photovoltaic module lower surface can not import light energy, and also ensures and uniformly receive too
The injection of sunlight, electric energy production effect are preferable.
5, the present invention applies the photovoltaic system of the reflector, passes through the specific arrangement mode of two-sided photovoltaic module, Neng Goushi
Existing two-sided photovoltaic module surrounding is distributed with reflecting surface so that the lower surface of two-sided photovoltaic module can receive reflected light.
6, the first protective layer and the second protective layer being further arranged in the present invention, can be to two-sided photovoltaic module, reflection
Device plays a protective role.The producer is mounted directly after can assembling by setter, simplifies installation procedure.
7, the present invention does not influence the correlation and manufacturing process of other components such as two-sided photovoltaic module, reflector not only,
Its is simple in structure, and production cost is effectively reduced, and the scope of application is expanded.
Description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to for two-sided photovoltaic module
The above-mentioned characteristic of photovoltaic system, technical characteristic, advantage and its realization method of reflector and application reflector are further described.
Fig. 1 is structural schematic diagram of the present invention for the reflector of two-sided photovoltaic module；
Fig. 2 is the structural schematic diagram on the other direction of Fig. 1；
Fig. 3 is front view of the present invention using two-sided photovoltaic module in the photovoltaic system of reflector；
Fig. 4 is usage state diagram of the present invention using the photovoltaic system of reflector.
Drawing reference numeral explanation：
First height h1；Second height h2；First length S1；Second length S2；
Reflector 100；Reflecting surface 101；Bottom plate 102；Side wall 103；Side plate 1031；Arcwall face 1032；
Two-sided photovoltaic module 200；
First protective layer 300；
Second protective layer 400；
Accommodating space 500.
Specific implementation mode
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, control is illustrated below
The specific implementation mode of the present invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, their not generations
Its practical structures as product of table.In addition, so that simplified form is easy to understand, there is identical structure or function in some figures
Component, be only symbolically painted one of those, or only marked one of occupation mode.Herein, "one"
It not only indicates " only this ", can also indicate the situation of " more than one "；In addition icon is injected with straight rays with the arrow
Direction.
In an embodiment of the present invention, referring to shown in Fig. 1,2, the reflector of two-sided photovoltaic module, the reflector 100 are used for
Sunray is reflected to the lower surface of two-sided photovoltaic module 200, and reflector 100 is towards 200 lower surface of two-sided photovoltaic module
Part be reflecting surface 101.When practice, reflector 100 can be made of specular material, it is made to generate scattered reflection effect
Fruit.High-purity aluminium sheet can also be used, reflecting effect is can be realized into the dacron membrane that high reflectance silver is coated after upper table mirror polish.Tool
Body production method does not limit, and can be selected according to specific demand.
In the present embodiment, referring to shown in Fig. 1,2, which includes a bottom plate 102 and is disposed around bottom plate 102 4
The side wall 103 in week.Wherein, side wall 103 is less than the bore of the other side close to the bore of 102 side of bottom plate so that 100 shape of reflector
Flue (expands gradually from 102 1 lateral side wall of bottom plate, 103 side), and the inner wall of bottom plate 102 and side wall 103 is set as anti-
Penetrate face 101.It can ensure to concentrate reflection after the sunlight injected on reflecting surface 101 collects in this way, improve reflectivity, improve simultaneously
The electricity production capacity of two-sided photovoltaic module 200.
In the present embodiment, the bottom plate 102 of setting can be round or rectangular or polygon, such as bottom plate 102 is
Circle, and side wall 103 is directly made of the side plate 1031 of an entirety, when bottom plate 102 is rectangular or polygon, side wall 103
It can be made of multiple side plates 1031.See Fig. 1, shown in 3, in the application be preferably that bottom plate 102 is square, and side wall 103 by
Four side plates 1031 are constituted, and edge lengths of the side plate 1031 close to 102 side of bottom plate are less than opposite side；And each two sides adjacent
It is connected by arcwall face 1032 between plate 1031.Wherein, side plate 1031 is tablet or cambered surface plate, and cambered plate can be parabolic knot
Structure or free form surface structure.And arcwall face 1032 is at fan shape, specific fan shape arcwall face 1032 is that gradually expanded form (is leaned on
The side of nearly bottom plate 102 while less than the other side while), it is therefore an objective to so that tubaeform 103 arc-shaped transition of side wall, avoids generating
Dead angle impacts the reception of sunray.
In another embodiment of the present invention, referring to shown in Fig. 4, providing reflector in a kind of application above-described embodiment
The usage state diagram of 100 photovoltaic system.Include one or more reflectors 100 in the photovoltaic system, and photovoltaic system
By two-sided photovoltaic module 200 identical with 100 quantity of reflector, each reflector 100 is set to 200 lower section of two-sided photovoltaic module
(immediately below generally), and then sunray is received using the reflecting surface 101 of reflector 100, and reflex to two-sided photovoltaic module
On 200 lower surface, it can realize that the lower surface of two-sided photovoltaic 200 can receive the irradiation of sunlight, and then ensure two-sided
200 lower surface of photovoltaic module can be fully utilized.
It should be noted that referring to Fig. 3, the circular in cross-section of the two-sided photovoltaic module 200 or rectangular, specific basis
The shape of the bottom plate 102 of reflector 100 is set, main purpose be so that side wall 103 is looped around 200 surrounding of two-sided photovoltaic module,
Ensure that the light of reflection can all be absorbed by 200 lower surface of two-sided photovoltaic module.Certainly in other embodiments, different to ensure
200 lower surface of two-sided photovoltaic module of structure can receive the injection of sunlight, it is necessary to by the size (usable floor area) of the two
It is arranged to consistent.
In another embodiment of the present invention, the two-sided photovoltaic module 200 such as round or rectangular or polygon of composition, can
Each two-sided photovoltaic module 200 is provided directly as specific shape, can also structure be spliced by the two-sided photovoltaic module 200 of polylith
At.It is further the first height by the height of reflector 100 and then to improve the utilization rate of entire two-sided photovoltaic module 200
H1,200 edge of two-sided photovoltaic module (being specifically the surrounding profile of cross section) to side of the reflector 100 far from 102 side of bottom plate
The distance between 103 edge of wall (i.e. side plate 1031 is far from the 102 longer side of side edge lengths of bottom plate) is the first length S1；It is double
The geometric center of face photovoltaic module 200 to the distance between edge the surrounding profile of cross section (be specifically) is the second length S2.
Wherein, what the first height h1 was arranged is more than S1, while S1 need to be more than S2, it is only necessary to ensure the geometric center of each side plate 1031 double
On the lower surface of face photovoltaic module 200.
100 main function of reflector of setting is the lower surface that the sunlight of reception is reflexed to two-sided photovoltaic module 200
On, so to ensure the reflection efficiency of reflector 100, while ensureing that the light of reflection can be fully used, so further
Be the second height h2 by the distance between 200 lower surface of two-sided photovoltaic module and bottom plate 102, and h2 is arranged to and h1 height
It is equal.Certainly in other embodiments, to be further reduced 200 usable floor area of two-sided photocell, side plate can be further increased
1031 radian, as long as in the range of 200 lower surface performance of two-sided photocell can be born.
On the basis of the embodiment of above-mentioned utilization, to extend the service life of entire photovoltaic cell component, further
First protective layer 300 is set above two-sided photovoltaic module 200, while setting second is protected below the bottom plate of reflector 100 102
Sheath 400.When practice, the first protective layer 300 and the second protective layer 400 can be connected and composed to one and house two-sided photovoltaic group
The accommodating space 500 of part 200 and reflector 100.Wherein, the round or rectangular or polygon multiple two-sided of photovoltaic system is constituted
It can be directly connected between photovoltaic module 200, it can also be by external mounting bracket (not indicated in figure) by its multiple dual light
It lies prostrate component 200 and realizes fixation.Certainly in other embodiments, accommodating space 500 can be sealing, and the first protective layer 300
There are a certain distance between 200 upper surface of two-sided photovoltaic module, and the bottom plate 102 of the second protective layer 400 and reflector 100
Bottom surface fix, can also be by the second protective layer 400 directly as bottom plate 102, there are many specific occupation modes, in the application
No longer repeat one by one.
In this application, the upper and lower surface of the first protective layer 300 and the second protective layer 400 is disposed as plane, and adopted
It is made of the ultrawhite tempered glass or plastic material that translucency is strong, wear-resisting, corrosion-resistant, crushing resistance is strong.The same of protection can be played
When, additionally it is possible to the irradiating angle of sunlight will not be had an impact.
It should be noted that above-described embodiment can be freely combined as needed.The above is only the preferred of the present invention
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of photovoltaic system of reflector for two-sided photovoltaic module, it is characterised in that：
One or more reflectors；
The reflector reflects sunray to the lower surface of the two-sided photovoltaic module, and the reflector is towards described two-sided
The part of photovoltaic module lower surface is reflecting surface；
The reflector includes a bottom plate and is disposed around the side wall of the bottom plate surrounding, and the side wall is close to the bottom plate side
Bore is less than other side bore；
The bottom plate and the side wall inner wall are the reflecting surface；
The side wall is connected and composed by multiple side plates, and the side plate is tablet or cambered surface plate, and the side plate is close to the bottom
The edge lengths of plate side are less than opposite side；
It is connected by arcwall face between each two adjacent side plates, the arcwall face is fan shape；
The two-sided photovoltaic module of quantity identical as the reflector of application, each reflector are set to the two-sided photovoltaic
Below component, the reflecting surface of the reflector receives sunray, and reflexes on the lower surface of the two-sided photovoltaic module；
The height of the reflector is the first height h1；
The two-sided photovoltaic module edge to the distance between sidewall edge of the reflector far from the bottom plate side is the
One length S1；The geometric center of the two-sided photovoltaic module to the distance between edge is the second length S2；
The first height h1< S1< S2；
The two-sided photovoltaic module lower surface to the distance between the bottom plate is the second height h2, and h2=h1.
2. the photovoltaic system of the reflector according to claim 1 for two-sided photovoltaic module, it is characterised in that：
The two-sided photovoltaic module transverse section is rounded or square structure, and consistent with the bottom plate surrounding profile so that described
Side wall is looped around the two-sided photovoltaic module surrounding.
3. the photovoltaic system of the reflector according to claim 1 for two-sided photovoltaic module, it is characterised in that：
It is equipped with the first protective layer above the two-sided photovoltaic module, the second protective layer, institute are equipped with below the bottom plate of the reflector
It states the first protective layer and second protective layer connects and composes an accommodating sky for housing the two-sided photovoltaic module, the reflector
Between.
4. the photovoltaic system of the reflector according to claim 3 for two-sided photovoltaic module, it is characterised in that：
First protective layer and the upper and lower surface of the second protective layer are plane.
5. the photovoltaic system of the reflector according to claim 3 for two-sided photovoltaic module, it is characterised in that：
First protective layer and second protective layer are ultrawhite tempered glass or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044971.5A CN105490636B (en) | 2016-01-22 | 2016-01-22 | For the reflector of two-sided photovoltaic module and the photovoltaic system of application reflector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044971.5A CN105490636B (en) | 2016-01-22 | 2016-01-22 | For the reflector of two-sided photovoltaic module and the photovoltaic system of application reflector |
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| CN105490636A CN105490636A (en) | 2016-04-13 |
| CN105490636B true CN105490636B (en) | 2018-10-09 |
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| CN108011574B (en) * | 2017-11-22 | 2019-08-20 | 国网湖北省电力有限公司 | The panel construction design method of double-sided solar battery tracking bracket |
| CN113746420B (en) * | 2021-09-07 | 2022-04-05 | 深圳市安泰科能源环保股份有限公司 | BIPV roof structure |
Citations (7)
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