CN204578451U - A kind of automatically cleaning photovoltaic module - Google Patents
A kind of automatically cleaning photovoltaic module Download PDFInfo
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- CN204578451U CN204578451U CN201520123736.8U CN201520123736U CN204578451U CN 204578451 U CN204578451 U CN 204578451U CN 201520123736 U CN201520123736 U CN 201520123736U CN 204578451 U CN204578451 U CN 204578451U
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- photovoltaic module
- automatically cleaning
- cleaning photovoltaic
- tio
- film
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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 utility model discloses a kind of automatically cleaning photovoltaic module, comprise cover-plate glass and TiO
2film, wherein, described TiO
2film is arranged on the upper surface of described cover-plate glass.Described automatically cleaning photovoltaic module, by utilizing described TiO
2the photocatalytic activity of film and photic Superhydrophilic keep the clean of described cover-plate glass surface, described cover-plate glass surface is kept to have higher light transmittance, improve the power output of described automatically cleaning photovoltaic module, prevent the generation of hot spot effect, reduce the aging speed of described automatically cleaning photovoltaic module.Due to described TiO
2film absorption ultraviolet, decrease the miscellaneous part of described automatically cleaning photovoltaic module to ultraviolet absorption, slow down described automatically cleaning photovoltaic module aging speed, extend useful life, thus improve reliability and the generating efficiency of described automatically cleaning photovoltaic module, improve the economic benefit of enterprise.
Description
Technical field
The utility model relates to photovoltaic module and manufactures field, particularly relates to automatically cleaning photovoltaic module.
Background technology
Conventional photovoltaic assemblies generally uses toughened glass or simple glass.Photovoltaic module, the photovoltaic plant particularly built in the area be desolate and uninhabited is in long-term power generation process, a thick layer of dust and greasy dirt can be accumulated on surface, this layer of foreign matter can reduce the light transmittance of photovoltaic module, even there is hot spot effect, thus greatly reduce power output, cause significantly reduce the useful life of photovoltaic module.Assembly surface that is clean, foreign can not only improve the power output of photovoltaic module, prevents hot spot effect, and can extend its useful life.
Existing automatically cleaning assembly mainly by installing a kind of cleaning device to reach self-cleaning object on aluminium frame.As depicted in figs. 1 and 2, its operation principle is as follows: the drive unit that voltage sensitive sensor 4 controls drives hairbrush 3 to move to the other end on guide rail 2, when hairbrush 3 touches to contact, force signal is converted to the signal of telecommunication by voltage sensitive sensor, makes hairbrush oppositely movement, when moving to the other end and touching to contact 5, the oppositely movement of same hairbrush 3, realizes reciprocal self-cleaning function, after hairbrush 3 is clean, hairbrush 3 instrument can rest on assembly end automatically, can not affect assembly 1 and generate electricity.But this cleaning apparatus for self cannot be cleared up for pollutant obstinate on glass surface.Existing photovoltaic module, particularly photovoltaic plant seldom considers the problem of assembly surface dust and greasy dirt, also be, in assembly both sides, a kind of mechanical devices having cleaning function is installed mostly, but this cleaning mode can not keep the cleaning of glass surface the moment, just as the more obstinate foreign matter just now mentioned, be difficult to remove, the serious normal work hindering photovoltaic module, decreases the useful life of photovoltaic module.
Utility model content
The purpose of this utility model is to provide a kind of automatically cleaning photovoltaic module, moment keeps the glass surface of described automatically cleaning photovoltaic module clean, the surface of described automatically cleaning photovoltaic module is kept to have higher light transmittance, can normal power generation always, substantially prolongs useful life, improve assembly reliability, reduce use cost, improve economic benefit.
For solving the problems of the technologies described above, the utility model embodiment provides a kind of automatically cleaning photovoltaic module, comprises cover-plate glass and TiO
2film, wherein, described TiO
2film is arranged on the upper surface of described cover-plate glass.
Preferably, described automatically cleaning photovoltaic module also comprises frame and institute's dust exhaust apparatus, and described cover-plate glass is nested in described frame, and described dust exhaust apparatus is arranged on described frame.
Preferably, described dust exhaust apparatus also has the dust collection pipeline and multiple dust absorption nozzle that arrange along described frame.
Preferably, described dust absorption nozzle also has multiple air suction opening.
Preferably, described automatically cleaning photovoltaic module also has bracing frame.
Preferably, described automatically cleaning photovoltaic module also has fixture and bolt, will state bracing frame be fixedly connected with described dust exhaust apparatus by described bolt and described fixture.
Compared with prior art, the automatically cleaning photovoltaic module that the utility model embodiment provides, has the following advantages:
The automatically cleaning photovoltaic module that the utility model embodiment provides, comprises cover-plate glass and TiO
2film, wherein, described TiO
2film is arranged on the upper surface of described cover-plate glass.Because described cover-plate glass surface has described TiO
2film, and described TiO
2film has good photocatalytic activity and photic Superhydrophilic, described TiO
2by its good photocatalysis characteristic, absorb the organic substance on ultraviolet degradation surface.Meanwhile, due to described TiO
2the photic Superhydrophilic of film, under ultraviolet irradiation, one deck water film can be formed on the surface of described cover-plate glass, under the effect or rainwash of gravity, pollutant is easily flushed away, thus keeps the clean of described cover-plate glass surface, ensure that described cover-plate glass surface has higher light transmittance, prevent the generation of hot spot effect, reduce the rate of ageing of described automatically cleaning photovoltaic module, increase the power output of described automatically cleaning photovoltaic module.In addition, by described TiO
2film absorption ultraviolet, decrease the miscellaneous part of described automatically cleaning photovoltaic module to ultraviolet absorption, slow down the aging speed of described automatically cleaning photovoltaic module, extend useful life, thus improve reliability and the energy output of described automatically cleaning photovoltaic module, improve the economic benefit of enterprise.
To sum up, the described automatically cleaning photovoltaic module that the utility model embodiment provides, the surface of described cover-plate glass can be cleaned, make it have higher light transmittance, prevent the generation of hot spot effect, and absorbing in the process of taking out described cover-plate glass surface contaminants is outside line, slow down the aging speed of assembly, extend the useful life of assembly, improve the reliability of assembly, reduce use cost, improve the economic benefit of enterprise.
Accompanying drawing explanation
Fig. 1 is the vertical view schematic diagram of photovoltaic module and cleaning device position relationship in prior art;
Fig. 2 is the front view schematic diagram of photovoltaic module and cleaning device position relationship in prior art;
Fig. 3 is the photoelectric effect schematic diagram of TiO2 film in the utility model;
Fig. 4 is the front view structural representation of a kind of embodiment of automatically cleaning photovoltaic module provided by the utility model;
Fig. 5 is the vertical view structural representation of a kind of embodiment of automatically cleaning photovoltaic module provided by the utility model;
Fig. 6 is the relative position relation schematic diagram of dust absorption nozzle in a kind of embodiment of automatically cleaning photovoltaic module provided by the utility model and air suction opening.
Embodiment
The TiO that functional film material is mainly anatase structured
2and TiO
2with the compound of other metals, metal oxide or other element dopings.This function film can keep, with the super compatibility of water, making full use of sunlight, air, rainwater for a long time, automatically keeps the clean of glass surface, thus improves light transmittance and the power output of assembly; And the TiO that glass surface plates
2film or other semiconductor films can absorb ultraviolet light, and reduce the aging action of ultraviolet light to assembly, extend assembly useful life, improve assembly reliability.
This thin film is for two kinds of functions: photocatalytic and photic Superhydrophilic.The organic substance that its photocatalysis performance removing glass surface is formed; Its photic Superhydrophilic can make glass utilize natural rain to wash away the dust of glass surface.The principle of its two kinds of performances is as described below:
Photocatalysis performance: its principle is function of surface membrane material TiO
2under the irradiation of ultraviolet light or visible ray, when the energy of illumination photons is more than or equal to its bandwidth, electronics in valence band is excited, shake off the constraint of valence band, cross to be with and enter conduction band, valence band is formed on hole, conduction band and form free electron, form electron-hole pair, this electron-hole pair and TiO simultaneously
2the organic substance generation redox reaction of adsorption, produces CO
2and H
2o, thus the object reaching degradation of organic substances.
Photic super hydrophilicity: under normal circumstances, TiO
2film surface and water have larger contact angle, and when not carrying out UV-irradiation, contact angle is 72 ± 1 °, and after UV-irradiation, contact angle is 0 ± 1 °.It is generally acknowledged TiO
2the photic Superhydrophilic of film surface is its change in UV-irradiation lower surface configuration.Under UV-irradiation, TiO
2electronics in valence band is excited to conduction band, forms electron-hole pair, electronics and Ti on its surface
4+reaction, hole and surperficial bridging oxygen react, and make Surface Oxygen hollow, thus Ti nearby
4+turn to Ti
3+, Ti
3+be suitable for free water absorption.Now, the hydrolysis ion in air is adsorbed in Lacking oxygen, becomes chemical absorbed water, and chemical absorbed water can moisture further in absorbed air, forms physics adsorption layer, namely at Ti
3+define the microcell of highly-hydrophilic around, thus reach photic super hydrophilicity, it can form the uniform water film of one deck at glass surface, and under the effect or rainwash of gravity, pollutant is easily walked by water-band.
And TiO
2as shown in Figure 3, Fig. 3 is TiO to the self-cleaning performance mechanism of film
2the photoelectric effect schematic diagram of film.
TiO
2energy gap be 3.2ev, when its be subject to light (ultraviolet light) that wavelength is less than or equal to 387.5nm irradiate time, valence-band electrons can obtain the energy of photon and transit to conduction band, forms light induced electron (e
-); Valence band then forms photohole (h
+).Its photocatalytic activity is as shown in following formula:
TiO
2+ hv → h
++ e
-(3) h
++ e
-→ heat energy (4)
h
++OH-→·OH (5) h
++H
2O→·OH+H
+(6)
e
-+O
2→O
2 -(7) O
2+H+→HO
2· (8)
2H
2O·→O
2+H
2O
2(9) H
2O
2+O
2→·OH+H
++O
2(10)
·OH+dye→…→CO
2+H
2O (11)
H
++dye→…→CO
2+H
2O (12)
TiO
2the light induced electron e on surface
-easily catch by oxidizing substances such as oxygen in water, and hole h
+then oxidablely be adsorbed in TiO
2the organic substance or first being adsorbed on TiO on surface
2oH-and H on surface
2o molecular oxygen changes into OH free radical, and the oxidability of OH free radical is the strongest in the oxidant existed in water body, and its mineralising is inorganic molecules, CO by most organic substances and inorganic pollution in energy oxidize water
2and H
2the innocuous substances such as O.
Just as described in the background section, automatically cleaning photovoltaic module of the prior art is the dirt adopting the means of machinery to know surface, but but can only clear up dust, the more obstinate foreign matters such as greasy dirt are difficult to remove, have a strong impact on the light transmittance of assembly surface, reduce the normal power generation efficiency of assembly.
Based on this, the utility model embodiment provides a kind of automatically cleaning photovoltaic module, comprises packaged solar battery sheet and TiO
2film, wherein, described packaged solar battery sheet has the cover-plate glass and the frame at edge that are arranged at surface, described TiO
2film arranges the upper surface with described cover-plate glass.
In sum, described automatically cleaning photovoltaic module is by arranging the described TiO with good photocatalytic activity and photic Superhydrophilic on surface
2film, absorbs the organic substance on ultraviolet degradation surface.Meanwhile, due to described TiO
2the photic Superhydrophilic of film, under ultraviolet irradiation, one deck water film can be formed on the surface of described cover-plate glass, under the effect or rainwash of gravity, pollutant is easily flushed away, thus keep the clean of described cover-plate glass surface, ensure that described cover-plate glass surface has higher light transmittance, increase the energy output of described automatically cleaning photovoltaic module.In addition, by described TiO
2film absorption ultraviolet, slow down the aging speed of described automatically cleaning photovoltaic module, extends useful life, thus improves reliability and the generating efficiency of described automatically cleaning photovoltaic module, improves the economic benefit of enterprise.
For enabling above-mentioned purpose of the present utility model, feature and advantage more become apparent, and are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
Set forth detail in the following description so that fully understand the utility model.But the utility model can be different from alternate manner described here to implement with multiple, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension.Therefore the utility model is not by the restriction of following public concrete enforcement.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is the front view structural representation of a kind of embodiment of automatically cleaning photovoltaic module provided by the utility model; Fig. 5 is the vertical view structural representation of a kind of embodiment of automatically cleaning photovoltaic module provided by the utility model.
In a kind of embodiment, described automatically cleaning photovoltaic module, comprises cover-plate glass 11 and TiO
2film 12, wherein, described TiO
2film 12 is arranged on the upper surface of described cover-plate glass 11.It should be noted that, described TiO
2film 12 just has the special case removing the obstinate thing function in described cover-plate glass surface, and the utility model can also use other the film with obstinate things such as described cover-plate glass 11 surface and oil contaminants of removing, and the utility model is not specifically limited this.In addition, the utility model to the miscellaneous part of described automatically cleaning photovoltaic module, as solar battery sheet, EVA encapsulating material, backboard etc. are not specifically limited.
Preferably, described automatically cleaning photovoltaic module also comprises frame and institute's dust exhaust apparatus 13, and described cover-plate glass 11 is nested in described frame, and described dust exhaust apparatus 13 is arranged on described frame.By day or fine time, described automatically cleaning photovoltaic module relies on described TiO
2film 11 can complete the surface cleaning to described automatically cleaning photovoltaic module, but when night or weather darkness, likely can not excite described TiO
2during film 12 active, in order to keep the clean of described cover-plate glass 11 surface, described dust exhaust apparatus 13 need be used.Use described TiO simultaneously
2film 12 and described dust exhaust apparatus 13, adopt physics with the mode of chemistry, mutually auxiliary, make up the deficiency of the cleaning capacity of the other side, thus improve light transmittance and the power output on the surface of described automatically cleaning photovoltaic module, improve energy output, and effectively can prevent described automatically cleaning photovoltaic module generation hot spot effect, reduce rate of ageing.It should be noted that, the utility model is not specifically limited described dust exhaust apparatus 13.
On the basis of above-described embodiment, in a kind of embodiment of the present utility model, described dust exhaust apparatus 13 also has the dust collection pipeline 131 and multiple dust absorption nozzle 132 that arrange along described frame.Described dust exhaust apparatus 13 has described dust collection pipeline 131 and described dust absorption nozzle 132, can use a described dust exhaust apparatus, complete large-area cleaning operation, improve dust collection efficiency, reduce use cost.It should be noted that, the utility model is not specifically limited the distribution of described dust absorption nozzle 132 at described dust collection pipeline 131.
On the basis of above-described embodiment, in a kind of embodiment of the present utility model, described dust absorption nozzle 132 also has multiple air suction opening 133.As shown in Figure 6, described dust absorption nozzle 132 also has multiple air suction opening 133, when air pressure in described dust absorption nozzle 132 is constant, because the aperture of described dust suction sky is very little, make the dust removal ability of described dust exhaust apparatus 13 stronger, dust suction district efficiency is higher, and described dust absorption nozzle 132 directly can contact with described cover-plate glass 11, can well prevent in dust suction process described TiO
2film causes mechanical damage.It should be noted that, the structure of the utility model to the air suction opening 133 of described dust absorption nozzle 132 is not specifically limited.
On the basis of above-described embodiment, in a kind of embodiment of the present utility model, described automatically cleaning photovoltaic module also has bracing frame 14.Because general dust exhaust apparatus 13 is comparatively large relative to the volume of photovoltaic module, weight is comparatively large, needs miscellaneous part to support, to reduce the pressure that photovoltaic module is subject to.Described automatically cleaning photovoltaic module also has bracing frame 14, support frame as described above 14 for supporting the miscellaneous part of described dust exhaust apparatus 13 and described automatically cleaning photovoltaic module, as packaged photovoltaic module.It should be noted that the utility model is not specifically limited the mode that support frame as described above 14 and support frame as described above specifically support described dust exhaust apparatus.
On the basis of above-described embodiment, in a kind of embodiment of the present utility model, described automatically cleaning photovoltaic module also has fixture 15 and bolt 16, will state bracing frame 14 be fixedly connected with described dust exhaust apparatus 13 by described bolt 16 and described fixture 15.After adding the support of described dust exhaust apparatus 13 with support frame as described above 14, due to described automatically cleaning photovoltaic module, mostly generate electricity in the wild, when running into larger wind, connection between described dust exhaust apparatus 13 and support frame as described above 14 is firm not, affect support effect, reduce the cleaning effect of described dust exhaust apparatus 13 to described cover-plate glass 11 surface.Bracing frame 14 will be stated by described bolt 16 and described fixture 15 to be fixedly connected with described dust exhaust apparatus 13, make stable connection between described dust exhaust apparatus 13 and support frame as described above 14, make described dust exhaust apparatus 13 more stably can carry out dedusting to the surface of described cover-plate glass 11.It should be noted that, practical other the mode that can also use of basis fixes described dust exhaust apparatus 13 and support frame as described above 14, and basis is practical to be not specifically limited this.
In sum, described automatically cleaning photovoltaic module is by arranging the described TiO with good photocatalytic activity and photic Superhydrophilic on surface
2film, absorbs the dirts such as the greasy dirt on ultraviolet degradation surface, improves the light transmittance of described cover-plate glass, prevent the generation of hot spot effect, reduces rate of ageing.Meanwhile, due to described TiO
2the photic Superhydrophilic of film, under ultraviolet irradiation, one deck water film can be formed on the surface of described cover-plate glass, under the effect or rainwash of gravity, pollutant is easily flushed away, thus keep the clean of described cover-plate glass surface, ensure that described cover-plate glass surface has higher light transmittance, increase described automatically cleaning photovoltaic module and export.In addition, by described TiO
2film absorption ultraviolet, decrease described automatically cleaning photovoltaic module miscellaneous part to ultraviolet absorption, slow down aging speed, extend useful life, thus improve reliability and the generating efficiency of described automatically cleaning photovoltaic module, improve the economic benefit of enterprise.
Above automatically cleaning photovoltaic module provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and execution mode, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection range of the utility model claim.
Claims (6)
1. an automatically cleaning photovoltaic module, is characterized in that, comprises cover-plate glass and TiO
2film, wherein, described TiO
2film is arranged on the upper surface of described cover-plate glass.
2. automatically cleaning photovoltaic module as claimed in claim 1, it is characterized in that, described automatically cleaning photovoltaic module also comprises frame and institute's dust exhaust apparatus, and described cover-plate glass is nested in described frame, and described dust exhaust apparatus is arranged on described frame.
3. automatically cleaning photovoltaic module as claimed in claim 2, it is characterized in that, described dust exhaust apparatus also has the dust collection pipeline and multiple dust absorption nozzle that arrange along described frame.
4. automatically cleaning photovoltaic module as claimed in claim 3, it is characterized in that, described dust absorption nozzle also has multiple air suction opening.
5. automatically cleaning photovoltaic module as claimed in claim 4, it is characterized in that, described automatically cleaning photovoltaic module also has bracing frame.
6. the automatically cleaning photovoltaic module as described in any one of claim 2-5, is characterized in that, described automatically cleaning photovoltaic module also has fixture and bolt, will state bracing frame be fixedly connected with described dust exhaust apparatus by described bolt and described fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520123736.8U CN204578451U (en) | 2015-03-03 | 2015-03-03 | A kind of automatically cleaning photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520123736.8U CN204578451U (en) | 2015-03-03 | 2015-03-03 | A kind of automatically cleaning photovoltaic module |
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| CN204578451U true CN204578451U (en) | 2015-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054760A (en) * | 2019-06-06 | 2020-12-08 | 国家电投集团西安太阳能电力有限公司 | Photovoltaic module with cleaning function and use method thereof |
-
2015
- 2015-03-03 CN CN201520123736.8U patent/CN204578451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054760A (en) * | 2019-06-06 | 2020-12-08 | 国家电投集团西安太阳能电力有限公司 | Photovoltaic module with cleaning function and use method thereof |
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